Identity issues surrounding American skullcap (Scutellaria lateriflora) and an optimised high performance liquid chromatography method to authenticate commercially available products

Brock, C., Whitehouse, J., Tewfik, I. and Towell, A. 2013. Identity issues surrounding American skullcap (Scutellaria lateriflora) and an optimised high performance liquid chromatography method to authenticate commercially available products. Journal of Herbal Medicine. 3 (2), pp. 57-64. https://doi.org/10.1016/j.hermed.2013.02.001

TitleIdentity issues surrounding American skullcap (Scutellaria lateriflora) and an optimised high performance liquid chromatography method to authenticate commercially available products
AuthorsBrock, C., Whitehouse, J., Tewfik, I. and Towell, A.
Abstract

Traditional use of American skullcap (Scutellaria lateriflora) for anxiety and related conditions is well documented. There is evidence of flavonoid instability in S. lateriflora and a high rate of substitution with other skullcap species or adulteration with potentially hepatotoxic germanders (Teucrium spp.). It is therefore essential for the identity, quality and safety of a commercial S. lateriflora product to be verified prior to clinical use.

The objective was to review the literature relating to substitution and adulteration of S. lateriflora and to present a simple, optimised high performance liquid chromatography (HPLC) method to verify the absence of adulterants in a commercial sample of S. lateriflora, by comparing its chromatographic profile with that of authenticated S. lateriflora.

S. lateriflora reference material and a freeze-dried commercial sample were extracted with methanol and water (80:20, v/v) and compared by HPLC analysis. The commercial sample showed reproducible retention times (RTs) of the flavonoid biomarkers baicalin (RT = 14.8 min; mean ± SD = 11.71 ± 1.16 mg/g); baicalein (RT = 20.4 min; 7.67 ± 0.89 mg/g); wogonin (RT = 23.7 min; 0.65 ± 0.06 mg/g). It appeared to be free from adulteration with germander (verbascoside was not detected; RT = 9.1 min) and its phytochemical profile was consistent with that of the S. lateriflora reference material.

It is crucial that commercial products are adequately identified prior to use. The reported HPLC method has shown the potential to compare non-authenticated S. lateriflora samples with authenticated voucher specimens – essential when conducting any phytochemical analysis of the herb.

JournalJournal of Herbal Medicine
Journal citation3 (2), pp. 57-64
ISSN2210-8033
YearJun 2013
PublisherElsevier
Digital Object Identifier (DOI)https://doi.org/10.1016/j.hermed.2013.02.001
Publication dates
PublishedJun 2013
File

Related outputs

Nutrigenomics-guided lifestyle intervention programmes: A critical scoping review with directions for future research
Aljasir, S, Noura Eid N, Volpi, E and Tewfik, I. 2024. Nutrigenomics-guided lifestyle intervention programmes: A critical scoping review with directions for future research. Bulletin of the National Research Centre.

Breastfeeding duration reduces the risk of childhood leukemia lymphoma and modifies the risk of developing functional gastrointestinal disorders
Abdulbari Bener, A., Tokaç, M., Tewfik, I., Zughaier, S.M., Ağan, A.F. and Day, A.S. 2024. Breastfeeding duration reduces the risk of childhood leukemia lymphoma and modifies the risk of developing functional gastrointestinal disorders. Breastfeeding Medicine. Advanced online publication. https://doi.org/10.1089/bfm.2024.0033

Redefining the hepatoprotective potential of Javanese turmeric (Curcuma xanthorrhiza) Kombucha towards the diethylnitrosamine-induced hepatotoxicity of mice
Elok Zubaidah, Eirene Charista Dea, Ella Saparianti, Rhytia Ayu Christianty Putri, Hidayat Sujuti, Ignatius Srianta, Laura Godelive and Ihab Tewfik 2024. Redefining the hepatoprotective potential of Javanese turmeric (Curcuma xanthorrhiza) Kombucha towards the diethylnitrosamine-induced hepatotoxicity of mice. Nutrition & Food Science. 54 (3), pp. 483-494. https://doi.org/10.1108/NFS-09-2023-0219

Nutrition and Public Health in Georgia: Reviewing the current status and inspiring improvements: A joint event of the Georgian Nutrition Society, The Nutrition Society of the UK and Ireland and the Sabri Ülker Foundation, October 2023
Julian Stowell, John C Mathers, Manana Stanley, F Nur Baran Aksakal, Avril Aslett-Bentley, Diána Bánáti, Eka Bobokhidze, Özlem Üliç Çatar, Özge Dinç, Rusudan Gvamichava, Begüm Mutus, Caroline Saunders, Oliver Shannon and Ihab Tewfik 2024. Nutrition and Public Health in Georgia: Reviewing the current status and inspiring improvements: A joint event of the Georgian Nutrition Society, The Nutrition Society of the UK and Ireland and the Sabri Ülker Foundation, October 2023. British Journal of Nutrition. 131 (12), pp. 2080-2089. https://doi.org/10.1017/s0007114524000618

The Evaluation of Microbiological, Physicochemical, and Sensory Properties of Rice Bran Yogurt with Cavendish Banana (Musa acuminata) Puree at Various Concentrations
Nugerahani, I., Cahyadi, F.I., Hartono, P.C., Kuswardani, I., Ristiarini, S., Srianta, I. and Tewfik, I. 2024. The Evaluation of Microbiological, Physicochemical, and Sensory Properties of Rice Bran Yogurt with Cavendish Banana (Musa acuminata) Puree at Various Concentrations. Journal of Food, Culinary and Nutrition. 1 (1), pp. 33-42. https://doi.org/10.24167/jfcn.v1i1.4627

Effect of Monascus Fermented Durian Seed Concentration on Physicochemical and Organoleptic Properties of meat Analog Sweet Potato Flour-Gluten Based
Srianta, Ignatius, Soejanta, Brenda Revitasari, Natanael, Josephine, Ristiarini, Susana, Nugerahani, Ira and Tewfik, Ihab 2023. Effect of Monascus Fermented Durian Seed Concentration on Physicochemical and Organoleptic Properties of meat Analog Sweet Potato Flour-Gluten Based. Food Research. 7 (Supp 1), pp. 91-95. https://doi.org/10.26656/fr.2017.7(S1).4

Ascertaining carcinogenicity of consumption of red meat and processed meat: A scoping review of epidemiological studies
Tewfik, I. 2023. Ascertaining carcinogenicity of consumption of red meat and processed meat: A scoping review of epidemiological studies. International Journal of Food, Nutrition and Public Health. 13 (1-2), pp. 1-47. https://doi.org/10.47556/J.IJFNPH.13.1-2.2023.1

Parental Nutritional Awareness for Enhancement of Child Nutrition and Healthy Lifestyle: A Literature Review
Gvamichava, R., Baramidze, L. and Tewfik, I. 2023. Parental Nutritional Awareness for Enhancement of Child Nutrition and Healthy Lifestyle: A Literature Review. Georgian Biomedical News. 1 (4). https://doi.org/10.52340/GBMN.2023.01.01.49

Editorial: Global excellence in children and health
Bener, Abdulbari, Tewfik, Ihab, Zughaier, Susu M. and Day, Andrew S. 2023. Editorial: Global excellence in children and health. Frontiers in Public Health. 11 1286481. https://doi.org/10.3389/fpubh.2023.1286481

Enhancing Immunomodulatory Properties of Javanese Turmeric (Curcuma xanthorrhiza) Kombucha against Diethylnitrosamine in Male Balb/c Mice
Elok Zubaidah, Eirene Charista Dea, Aldilla Putri Rahayu, Kiki Fibrianto, Ella Saparianti, Hidayat Sujuti, Laura Godelive, Ignatius Srianta and Ihab Tewfik 2023. Enhancing Immunomodulatory Properties of Javanese Turmeric (Curcuma xanthorrhiza) Kombucha against Diethylnitrosamine in Male Balb/c Mice. Process Biochemistry. 133, pp. 303-308. https://doi.org/10.1016/j.procbio.2023.09.012

The distinctive hepatoprotective activity of turmeric kombucha (Curcuma longa) induced by diethylnitrosamine in Balb/C mice
Elok Zubaidah, Ike Susanti, Hidayat Sujuti, Erryana Martati, Aldilla Putri Rahayu, Ignatius Srianta and Ihab Tewfik 2023. The distinctive hepatoprotective activity of turmeric kombucha (Curcuma longa) induced by diethylnitrosamine in Balb/C mice. Food Bioscience. 55 103043. https://doi.org/10.1016/j.fbio.2023.103043

Biomonitoring and predictive modelling of genomic instability in childhood obesity
Usman, M., Woloshynowych, M., Carrilho Britto, J., Bilkevic, I., Glassar, B., Chapman, S., Ford-Adams, M., Desai, A., Bain, M., Tewfik, I. and Volpi, E. 2023. Biomonitoring and predictive modelling of genomic instability in childhood obesity. Spanish Journal of Environmental Mutagenesis and Genomics. 27 (1), p. 169.

Physicochemical and microbiological characteristics of fruit-based kombucha
Zubaidah, E., Cahyadi, A.B., Srianta, I. and Tewfik, I. 2023. Physicochemical and microbiological characteristics of fruit-based kombucha. Food Research. 7 (Suppl. 1), pp. 64-70. https://doi.org/10.26656/fr.2017.7s(1).8

Re-formulating Monascus fermented durian seeds yogurt with strawberry (Fragaria x ananassa) puree to enhance its microbiological, physicochemical and organoleptic properties
I. Kuswardani, F. Yuwono, N.E. Dharmawan, I. Nugerahani, S. Ristiarini, I. Srianta and Tewfik, I. 2023. Re-formulating Monascus fermented durian seeds yogurt with strawberry (Fragaria x ananassa) puree to enhance its microbiological, physicochemical and organoleptic properties. Food Research. 7 (Suppl. 1), pp. 8-13. https://doi.org/10.26656/fr.2017.7(s1).11

Sauerkraut inoculated with Lactobacillus casei as a potent immunomodulator in Escherichia coli infected mice
E. Zubaidah, M.S. Arum, T. Dewanti, A.P. Rahayu, I. Srianta, I. Tewfik and Tewfik, I. 2023. Sauerkraut inoculated with Lactobacillus casei as a potent immunomodulator in Escherichia coli infected mice. Food Research. 7 (2), pp. 67-73. https://doi.org/10.26656/fr.2017.7(2).586

Chapter 12 - Fermented plant-based beverage: kombucha
Zubaidah, E., Srianta, I and Tewfik, I. 2022. Chapter 12 - Fermented plant-based beverage: kombucha. in: Prakash, Sangeeta, Bhandari, Bhesh R. and Gaiani, Claire (ed.) Engineering Plant-Based Food Systems Elsevier. pp. 215-231

Tailored Dietary Plan to Sustain Healthy Lifestyle of Adults with Restrained Mobility
Khawandanah, J., Khawandanah, D., Tewfik, S. and Tewfik, I. 2022. Tailored Dietary Plan to Sustain Healthy Lifestyle of Adults with Restrained Mobility. Food Science & Nutrition Technology. 7 (2). https://doi.org/10.23880/fsnt-16000286

The effect of different concentration of banana ambon puree on the physicochemical, microbiological, and organoleptic properties of rice bran yogurt
Iswanto, N., Srianta, I., Poernomo, L.N., Nugerahani, I., Kuswardhani, I., Ristiarini, S. and Tewfik, I. 2022. The effect of different concentration of banana ambon puree on the physicochemical, microbiological, and organoleptic properties of rice bran yogurt. International Food Conference 2021. Online 03 Nov 2021 E3S Web of Conferences. https://doi.org/10.1051/e3sconf/202234403001

Enhancement of the lactic acid bacteria population, chemical and organoleptic properties of soygurt with nutraceuticals from purple sweet potato (Ipomoea batatas L) paste
Lambertus, E., Srianta, I., Liem, D., Wanaputra, F., Nugerahani, I., Kuswardhani, I. and Tewfik, I. 2022. Enhancement of the lactic acid bacteria population, chemical and organoleptic properties of soygurt with nutraceuticals from purple sweet potato (Ipomoea batatas L) paste. International Food Conference 2021. Online 03 Nov 2021 E3S Web of Conferences. https://doi.org/10.1051/e3sconf/202234402004

Optimization of Physicochemical and Organoleptic Properties of Cookies made of Modified Cassava Flour and Mung Bean Flour
Leticia, C.G., Trisnawati, C.Y., Widyastuti, T.E.W., Srianta, I. and Tewfik, I. 2022. Optimization of Physicochemical and Organoleptic Properties of Cookies made of Modified Cassava Flour and Mung Bean Flour. International Food Conference 2021. Online 03 Nov 2021 E3S Web of Conferences. https://doi.org/10.1051/e3sconf/202234404003

Effect of Molasses Concentration on the Pigment Production of Monascus purpureus M9 on Monascus Fermented Durian Seed
Alvin, A., Nugerahani, I., Ristiarini, S., Kuswardani, I., Srianta, I. and Tewfik, I. 2022. Effect of Molasses Concentration on the Pigment Production of Monascus purpureus M9 on Monascus Fermented Durian Seed. International Food Conference 2021. Online 03 Nov 2021 E3S Web of Conferences. https://doi.org/10.1051/e3sconf/202234403003

The Anti-neoplastic Effects of Probiotics and Prebiotics against Colorectal Cancer: A Systematic Review
Cubillos, S.I. and Tewfik, I. 2022. The Anti-neoplastic Effects of Probiotics and Prebiotics against Colorectal Cancer: A Systematic Review. Journal of Food Research. 11 (2). https://doi.org/10.5539/jfr.v11n2p35

Knowledge, attitude and practice of pharmacovigilance among Nepalese health professionals
Shrestha, S.C., Ghebremeskel, K., White, K., Minelli, C., Tewfik, I., Thapa, P. and Tewfik, S. 2022. Knowledge, attitude and practice of pharmacovigilance among Nepalese health professionals. Journal of Pharmacovigilance and Drug Research. 3 (3), pp. 40-. https://doi.org/10.53411/jpadr.2022.3.3.07

Editorial: The Role of Vitamin D in Gut Health and Disease in Children
Day, Andrew S., Bener, Abdulbari, Tewfik, Ihab, Vajro, Pietro and Zughaier, Susu M. 2022. Editorial: The Role of Vitamin D in Gut Health and Disease in Children. Frontiers in Public Health. 10 912773. https://doi.org/10.3389/fpubh.2022.912773

Turmeric Kombucha as effective immunomodulator in Salmonella typhi-infected experimental animals
Zubaidah, E., Nisak, Y.K., Susanti, I., Widyaningsih, T.D., Srianta, I. and Tewfik, I. 2021. Turmeric Kombucha as effective immunomodulator in Salmonella typhi-infected experimental animals. Biocatalysis and Agricultural Biotechnology. 37 102181. https://doi.org/10.1016/j.bcab.2021.102181

Edible Insects: Sustainable nutrient-rich foods to tackle food insecurity and malnutrition
Adegboye A.R.A., Bawa, M., Keith, R., Tewfik, S. and Tewfik, I. 2021. Edible Insects: Sustainable nutrient-rich foods to tackle food insecurity and malnutrition. World Nutrition. 12 (4), pp. 176-189.

Nutritional management in polycystic ovary syndrome: challenges and opportunities
Hmedeh, C., Ghazeeri, G. and Tewfik, I. 2021. Nutritional management in polycystic ovary syndrome: challenges and opportunities. International Journal of Food Safety, Nutrition and Public Health. 6 (2), pp. 870-882. https://doi.org/10.1504/IJFSNPH.2021.113389

Finding the right fit: Enhancing the academic-industry link in the sector for Nutrition undergraduates – a pilot study
Sum, K., Dimitropoulos, L., Kurik, G. and Tewfik, I. 2021. Finding the right fit: Enhancing the academic-industry link in the sector for Nutrition undergraduates – a pilot study. Student Engagement in Higher Education Journal. 4 (1), pp. 45-69.

Obesity, oxidative DNA damage and vitamin D as predictors of genomic instability in children and adolescents
Usman, M., Woloshynowych, M., Britto, J.C., Bilkevic, I., Glassar, B., Chapman, S., Ford-Adams, M.E., Desai, A., Bain, M., Tewfik, I. and Volpi, E. 2021. Obesity, oxidative DNA damage and vitamin D as predictors of genomic instability in children and adolescents. International Journal of Obesity. 45, p. 2095–2107. https://doi.org/10.1038/s41366-021-00879-2

Formulation and Characterization of Phytostanol Ester Solid Lipid Nanoparticles for the Management of Hypercholesterolemia: An ex vivo Study.
Shrestha, S., Ghebremeskel, K., White, K., Minelli, C., Tewfik, I., Thapa, Panna and Tewfik, S. 2021. Formulation and Characterization of Phytostanol Ester Solid Lipid Nanoparticles for the Management of Hypercholesterolemia: An ex vivo Study. International Journal of Nanomedicine. 16, pp. 1977-1992. https://doi.org/10.2147/IJN.S276301

Nutritional Management in Polycystic Ovary Syndrome: Challenges and opportunities
Hmedeh, C., Ghazeeri, G. and Tewfik, I. 2021. Nutritional Management in Polycystic Ovary Syndrome: Challenges and opportunities. International Journal of Food Safety, Nutrition and Public Health. 6 (2), pp. 120-130. https://doi.org/10.1504/IJFSNPH.2021.113389

Natto and Vitamin K2: a promising nutraceutical aid for bone maintenance
Kitching, V. and Tewfik, I. 2020. Natto and Vitamin K2: a promising nutraceutical aid for bone maintenance. International Journal of Food, Nutrition and Public Health.

Evaluating the effectiveness of a tailored health educational health toolkit to modulate Type 2 Diabetes Mellitus and restrain its complications
Mbiatem, M. E. and Tewfik, I. 2020. Evaluating the effectiveness of a tailored health educational health toolkit to modulate Type 2 Diabetes Mellitus and restrain its complications. International Journal of Food, Nutrition and Public Health. 12 (1/2), pp. 41- 62.

Investigating chemical changes during Snake fruit and Black tea Kombucha fermentation and the associated immunomodulatory activity in Salmonella typhi-infected mice
Zubaidah, E., Valencia, V., Rifa'i, M., Srianta, I. and Tewfik, I. 2020. Investigating chemical changes during Snake fruit and Black tea Kombucha fermentation and the associated immunomodulatory activity in Salmonella typhi-infected mice. Potravinarstvo Slovak Journal of Food Sciences. 14, pp. 995-1000. https://doi.org/10.5219/1416

The combined impact of sauerkraut with Leuconostoc mesenteroides to enhance immunomodulatory activity in Escherichia coli-infected mice
Zubaidah, E., Ike Susanti, I., Yuwono, S.S., Rahayu, A.P., Srianta, I. and Tewfik, I. 2020. The combined impact of sauerkraut with Leuconostoc mesenteroides to enhance immunomodulatory activity in Escherichia coli-infected mice. European Food Research and Technology. 246 (8), pp. 1889-1893. https://doi.org/10.1007/s00217-020-03540-w

Attitudinal Determinants of diet and lifestyle among African and Caribbean women living in the UK : study design and rationale - Diets of African and Caribbean women
Adegboye, A.R.A., Moore, A.P., Comegna, S., Tewfik, I., Draper, A. and Begum, G. 2020. Attitudinal Determinants of diet and lifestyle among African and Caribbean women living in the UK : study design and rationale - Diets of African and Caribbean women. World Nutrition. 11 (1), pp. 97-109. https://doi.org/10.26596/wn.202011197-109

High omega arachidonic acid/docosahexaenoic acid ratio induces mitochondrial dysfunction and altered lipid metabolism in human hepatoma cells
Ghazali, R., Mehta, K., Bligh, S.W.A., Tewfik, I., Clemens, D.L. and Patel, V.B. 2020. High omega arachidonic acid/docosahexaenoic acid ratio induces mitochondrial dysfunction and altered lipid metabolism in human hepatoma cells. World Journal of Hepatology. 12 (3), pp. 84-98. https://doi.org/10.4254/wjh.v12.i3.84

Evaluation of Health Related Quality of Life of HIV/AIDS Patients on Highly Active Antiretroviral Therapy in State House Medical Center Abuja, Nigeria
Lawal, I., Tewfik, I. and Amlogu, A. 2019. Evaluation of Health Related Quality of Life of HIV/AIDS Patients on Highly Active Antiretroviral Therapy in State House Medical Center Abuja, Nigeria. Journal of Infectious Disease and Immunology. 1 (9), pp. 1-16.

Integrative assessment of genomic instability and anthropometric inflammatory and micro nutritional biomarkers in childhood obesity
Usman, M., Britto, J., Bilkevic, I., Ford-Adams, M., Chapman, S., Glassar, B., Desai, A., Bain, M., Tewfik, I. and Volpi, E. 2019. Integrative assessment of genomic instability and anthropometric inflammatory and micro nutritional biomarkers in childhood obesity. Molecular Cytogenetics. 12 (Suppl.1), p. 30.

A perspective on nanomedicine: focus on cardiovascular medicine
Shrestha, S., White, K., Minelli, C., Tewfik, I., Thapa, P. and Tewfik, S. 2019. A perspective on nanomedicine: focus on cardiovascular medicine. International Journal of Food, Nutrition and Public Health. 11 (1/2), pp. 97-119.

Supplementation of Optimum Nutrient-Dense Formula to Modulate HIV Infection in Resource Limited Settings
Tewfik, I., Amlogu, A.M. and Wambebe, C. 2019. Supplementation of Optimum Nutrient-Dense Formula to Modulate HIV Infection in Resource Limited Settings. American Journal of Biomedical Science and Research. https://doi.org/10.34297/AJBSR.2019.05.000878

Vitamin D and elevated serum uric acid as novel predictors and prognostic markers for type 2 diabetes mellitus
Bener, A., Al-Hamaq, A., Öztürk, M. and Tewfik, I. 2019. Vitamin D and elevated serum uric acid as novel predictors and prognostic markers for type 2 diabetes mellitus. Journal of Pharmacy and Bioallied Sciences . 11 (2), pp. 127-132. https://doi.org/10.4103/jpbs.JPBS_240_18

Innovative Nutritional approach to attenuate the progression of HIV to AIDS among People Living with HIV (PLWH): A study based in Abuja, Nigeria
Amlogu, A. M., Tewfik, S., Wambebe, C. and Tewfik, I. 2019. Innovative Nutritional approach to attenuate the progression of HIV to AIDS among People Living with HIV (PLWH): A study based in Abuja, Nigeria. Journal of Advance Research in Medical & Health Science. 5 (1). https://doi.org/10.53555/nnmhs.v5i1.600

Optimization of water extract of Cinnamomum burmannii bark to ascertain its in vitro antidiabetic and antioxidant activities
Ervina, M., Lie, H.S., Diva, J., Caroline, Tewfik, S. and Tewfik, I. 2019. Optimization of water extract of Cinnamomum burmannii bark to ascertain its in vitro antidiabetic and antioxidant activities. Biocatalysis and Agricultural Biotechnology. 19, p. 101152 101152. https://doi.org/10.1016/j.bcab.2019.101152

Efficacy of co-supplementation therapy with vitamins B9, B12, and D on endothelial dysfunction in streptozotocin-induced diabetic rats
Al-Joufi, F., El-Bana, M., Tewfik, I. and Anwar, M. 2018. Efficacy of co-supplementation therapy with vitamins B9, B12, and D on endothelial dysfunction in streptozotocin-induced diabetic rats. Asian Journal of Pharmaceutical and Clinical Research . 11 (9), pp. 407-410. https://doi.org/10.22159/ajpcr.2018.v11i9.25361

Appraising the Effects of Physical Activity Interventions on Risk Factors of Cardiovascular Diseases and Obesity: A Systematic Review
Sum, K. and Tewfik, I. 2018. Appraising the Effects of Physical Activity Interventions on Risk Factors of Cardiovascular Diseases and Obesity: A Systematic Review. International Journal of Food, Nutrition and Public Health. 10 (1), pp. 40-77. https://doi.org/10.47556/J.IJFNPH.10.1.2018.4

A Reassessment of the Higher-Order Factor Structure of the German Schizotypal Personality Questionnaire (SPQ-G) in German-Speaking Adults
Barron, D., Voracek, M., Tran, U.S., Hui San Ong, Morgan, K.D., Towell, A. and Swami, V. 2018. A Reassessment of the Higher-Order Factor Structure of the German Schizotypal Personality Questionnaire (SPQ-G) in German-Speaking Adults. Psychiatry Research. 269, pp. 328-336. https://doi.org/10.1016/j.psychres.2018.08.070

Evaluation of a photographic food atlas as a tool for quantifying food portion size in the United Arab Emirates
Ali, H., Platat, C., El Mesmoudi, N., El Sadig, M. and Tewfik, I. 2018. Evaluation of a photographic food atlas as a tool for quantifying food portion size in the United Arab Emirates. PLoS ONE. 13 (4) e0196389. https://doi.org/10.1371/journal.pone.0196389

Evaluation of plasma neurotransmitters in children living with Attention-Deficit Hyperactivity Disorder (ADHD)
Meguid, N., Anwar, M., Hussein, J., Hasan, H., Hashish, A., Seleet, F., Foda, M. and Tewfik, I. 2018. Evaluation of plasma neurotransmitters in children living with Attention-Deficit Hyperactivity Disorder (ADHD). Bioscience Research. 15 (1), pp. 152-159.

Measuring the Engagement of the Learner in a Controlled Environment Using Three Different Biosensors
El-Abbasy, K., Angelopoulou, A. and Towell, A. 2018. Measuring the Engagement of the Learner in a Controlled Environment Using Three Different Biosensors. 10th International Conference on Computer Supported Education. Madeira, Portugal 15 - 17 Mar 2018 SCITEPRESS. https://doi.org/10.5220/0006788202780284

The Relationship Between Schizotypal Facets and Conspiracist Beliefs via Cognitive Processes
Barron, D., Furnham, A., Weis, L., Morgan, K.D., Towell, A. and Swami, V. 2018. The Relationship Between Schizotypal Facets and Conspiracist Beliefs via Cognitive Processes. Psychiatry Research. 259, pp. 15-20. https://doi.org/10.1016/j.psychres.2017.10.001

Dietary fibre regimen to modulate weight management: a pilot intervention based on fibre rich fruit-mix (FRFM)
Khawandanah, J. and Tewfik, I. 2017. Dietary fibre regimen to modulate weight management: a pilot intervention based on fibre rich fruit-mix (FRFM). International Journal of Food, Nutrition and Public Health. 9 (2), pp. 67-79.

Genome instability in childhood obesity: A conceptual framework for an assessment, intervention and monitoring programme of inflammation and DNA damage in paediatric obesity
Usman, M., Tewfik, I. and Volpi, E. 2017. Genome instability in childhood obesity: A conceptual framework for an assessment, intervention and monitoring programme of inflammation and DNA damage in paediatric obesity. International Journal of Food, Nutrition and Public Health. 9 (1), pp. 1-12.

Visual mismatch negativity to masked stimuli presented at very brief presentation rates
Flynn, M., Liasis, A, Gardner, M. and Towell, A. 2017. Visual mismatch negativity to masked stimuli presented at very brief presentation rates. Experimental Brain Research. 235 (2), pp. 555-563. https://doi.org/10.1007/s00221-016-4807-1

A Prospective Randomized Controlled Trial to Study the Impact of a Nutrition-Sensitive Intervention on Adult Women With Cancer Cachexia Undergoing Palliative Care in India
Kapoor, N., Naufahu, J., Tewfik, S., Bhatnagar, S., Garg, R. and Tewfik, I. 2017. A Prospective Randomized Controlled Trial to Study the Impact of a Nutrition-Sensitive Intervention on Adult Women With Cancer Cachexia Undergoing Palliative Care in India. Integrative Cancer Therapies. 6 (1), pp. 74-84. https://doi.org/10.1177/1534735416651968

Fad Diets: Lifestyle Promises and Health Challenges
Khawandanah, Jomana and Tewfik, Ihab 2016. Fad Diets: Lifestyle Promises and Health Challenges. Journal of Food Research. 5 (6), pp. 80-94. https://doi.org/10.5539/jfr.v5n6p80

Palliative Nutritional Care for Cancer Patients
Kapoor, Neha, Garg, Rakesh and Tewfik, Ihab 2016. Palliative Nutritional Care for Cancer Patients. Palliative Medicine and Hospice Care. 1 (3), pp. e1-e6. https://doi.org/10.17140/PMHCOJ1-e002

Risk Factors for Maternal Vitamin D Deficiency within the United Arab Emirates
Hussein, I., Taha, Z., Tewfik, I., Badawi, S., Siddieg, H., Adegboye, A.R. and McGrady, K. 2016. Risk Factors for Maternal Vitamin D Deficiency within the United Arab Emirates. Journal of Pregnancy and Child Health. 3 (5), p. 1000276 1000276. https://doi.org/10.4172/2376-127X.1000276

A comparative study: long and short term effect of a nutrition sensitive approach to delay the progression of HIV to AIDS among people living with HIV (PLWH) in Nigeria
Amlogu, A., Tewfik, S., Wambebe, C. and Tewfik, I. 2016. A comparative study: long and short term effect of a nutrition sensitive approach to delay the progression of HIV to AIDS among people living with HIV (PLWH) in Nigeria. Functional Foods in Health and Disease. 6 (2), pp. 79-90.

Dietary Patterns of Children with Autism Spectrum Disorder: A Study Based in Egypt
Meguid, N., Anwar, M., Zaki, S., Kandeel, W., Ahmed, N. and Tewfik, I. 2015. Dietary Patterns of Children with Autism Spectrum Disorder: A Study Based in Egypt. Open Access Macedonian Journal of Medical Sciences. 3 (2), pp. 262-267. https://doi.org/10.3889/oamjms.2015.051

Affective Computing to Enhance E-Learning in Segregated Societies
El-Abbasy, K., Angelopoulou, A. and Towell, A. 2015. Affective Computing to Enhance E-Learning in Segregated Societies. 2015 Imperial College Computing Student Workshop (ICCSW 2015). London 23 Sep 2015 OpenAccess Series in Informatics. https://doi.org/10.4230/OASIcs.ICCSW.2015.13

Pakistani children’s experiences of growing up with Beta-Thalassemia Major
Mufti, G.E.R., Towell, A. and Cartwright, T. 2015. Pakistani children’s experiences of growing up with Beta-Thalassemia Major. Qualitative Health Research. 25 (3), pp. 386-96. https://doi.org/10.1177/1049732314552663

Examination of the factor structure of the Schizotypal Personality Questionnaire (SPQ) among British and Trinidadian adults
Barron, D., Towell, A., Swami, V. and Morgan, K.D. 2015. Examination of the factor structure of the Schizotypal Personality Questionnaire (SPQ) among British and Trinidadian adults. BioMed Research International. 2015 258275. https://doi.org/10.1155/2015/258275

A public health nutrition intervention to delay the progression of cachexia to refractory cachexia in Indian female cancer patients: A conceptual framework
Kapoor, N., Naufahu, J., Tewfik, S., Bhatnagar, S., Garg, R. and Tewfik, I. 2014. A public health nutrition intervention to delay the progression of cachexia to refractory cachexia in Indian female cancer patients: A conceptual framework. International Journal of Food, Nutrition and Public Health. 7 (1), pp. 1-11.

Therapeutic antioxidant activity of monascus-fermented durian seed: a potential functional food ingredient, Ignatius Srianta, Ira Nugerahani, Netty Kusumawati, Elisabet Suryatanijaya, Christine Subianto, Sundus Tewfik and Ihab Tewfik
Srianta I., Nugerahani, I., Kusumawati, N., Suryatanijaya, E., Subianto, C., Tewfik S. and Tewfik, I. 2014. Therapeutic antioxidant activity of monascus-fermented durian seed: a potential functional food ingredient, Ignatius Srianta, Ira Nugerahani, Netty Kusumawati, Elisabet Suryatanijaya, Christine Subianto, Sundus Tewfik and Ihab Tewfik. International Journal of Food, Nutrition and Public Health. 7 (1), pp. 53-59.

Physical activity delivered in workplace: A pilot study to assess the health outcomes among employees at work
Hammarberg, E., Papp, R., Gaywood, A., Ferraroli, J. and Tewfik, I. 2014. Physical activity delivered in workplace: A pilot study to assess the health outcomes among employees at work. International Journal of Food, Nutrition and Public Health. 7 (1), pp. 41-52.

Tailored Functional Recipe (TFR) Approach to Delay the Progression of HIV to AIDS among People Living with HIV (PLWH) in Abuja, Nigeria
Amlogu, A., Tewfik, S., Wambebe C., Godden, K. and Tewfik, I. 2014. Tailored Functional Recipe (TFR) Approach to Delay the Progression of HIV to AIDS among People Living with HIV (PLWH) in Abuja, Nigeria. Pharmacology & Pharmacy. 5 (10), pp. 926-936. https://doi.org/10.4236/pp.2014.510104

The impact of tailored nutrition intervention and dietary counseling on body weight in female cancer cachexia patients in India
Kapoor, N., Naufahu, J., Tewfik, S., Bhatnagar, S., Gargand, R. and Tewfik, I. 2014. The impact of tailored nutrition intervention and dietary counseling on body weight in female cancer cachexia patients in India. Journal of Clinical Oncology. 32 (31), p. 67. https://doi.org/10.1200/jco.2014.32.31_suppl.67

‘I just went with hope, because I thought I’m doing something’: Women’s Experiences of Western Herbal Practice for Distress
Yates, A., Whitehouse, J., Ridge, Damien T. and Green, J. 2014. ‘I just went with hope, because I thought I’m doing something’: Women’s Experiences of Western Herbal Practice for Distress. College of Medicine Multi-Disciplinary Student Summer School. King's College School of Nursing and Midwifery 05 Sep 2014

How women experience distress, and western herbal practice for the treatment of distress: implications for health care and self-management approaches
Yates, A., Whitehouse, J., Ridge, Damien T. and Green, J. 2014. How women experience distress, and western herbal practice for the treatment of distress: implications for health care and self-management approaches. University of Westminster Post-Graduate Fair. Univeristy of Westminster 29 Apr 2014

American skullcap (Scutellaria lateriflora): a randomised, double-blind placebo-controlled crossover study of its effects on mood in healthy volunteers
Brock, C., Whitehouse, J., Tewfik, I. and Towell, A. 2014. American skullcap (Scutellaria lateriflora): a randomised, double-blind placebo-controlled crossover study of its effects on mood in healthy volunteers. Phytotherapy Research. 28 (5), pp. 692-698. https://doi.org/10.1002/ptr.5044

Associations between schizotypy and belief in conspiracist ideation
Barron, D., Morgan, K.D., Towell, A., Altemeyer, B. and Swami, V. 2014. Associations between schizotypy and belief in conspiracist ideation. Personality and Individual Differences. 70, pp. 156-159. https://doi.org/10.1016/j.paid.2014.06.040

Public Health Nutrition Intervention Programme to Attenuate the Progression of HIV to AIDS among People Living with HIV (PLWH) in Abuja, Nigeria: A Conceptual Framework
Amlogu, A., Godden, K., Tewfik, I., Tewfik, S. and Wambebe, C. 2013. Public Health Nutrition Intervention Programme to Attenuate the Progression of HIV to AIDS among People Living with HIV (PLWH) in Abuja, Nigeria: A Conceptual Framework. International Journal of Food, Nutrition and Public Health. 6 (1), pp. 83-98.

The impact of dietary and lifestyle factors on the risk of dental caries among young children in Qatar
Bener, A., Al Darwish, Mohammed S., Tewfik, I. and Hoffmann, Georg F. 2013. The impact of dietary and lifestyle factors on the risk of dental caries among young children in Qatar. Journal of the Egyptian Public Health Association. 88 (2), pp. 67-73. https://doi.org/10.1097/01.EPX.0000430962.70261.8e

How women use and experience western herbal practice for distress: implications for health care and self-management approaches.
Yates, A., Green, J., Whitehouse, J. and Ridge, Damien T. 2013. How women use and experience western herbal practice for distress: implications for health care and self-management approaches. CAMSTRAND 2013. University of Westminster 02 Jul 2013 Elsevier. https://doi.org/doi:10.1016/j.eujim.2013.08.019

Hepatic mitochondrial dysfunction induced by fatty acids and ethanol
Gyamfi, D., Everitt, H.E., Tewfik, I., Clemens, D.L. and Patel, V. 2012. Hepatic mitochondrial dysfunction induced by fatty acids and ethanol. Free Radical Biology & Medicine. 53 (11), pp. 2131-2145. https://doi.org/10.1016/j.freeradbiomed.2012.09.024

The use of Scutellaria lateriflora: a pilot survey amongst herbal medicine practitioners
Brock, C., Whitehouse, J., Tewfik, I. and Towell, A. 2012. The use of Scutellaria lateriflora: a pilot survey amongst herbal medicine practitioners. Journal of Herbal Medicine. 2 (2), pp. 34-41. https://doi.org/10.1016/j.hermed.2012.04.005,

American skullcap (Scutellaria lateriflora L):a study of its effects on mood in healthy volunteers
Brock, C. 2012. American skullcap (Scutellaria lateriflora L):a study of its effects on mood in healthy volunteers. PhD thesis University of Westminster School of Life Sciences https://doi.org/10.34737/8z40y

Tailored food recipes-TFR: employing the European perspective
Amlogu, A., Godden, K., Tewfik, S., Wambebe, C. and Tewfik, I. 2012. Tailored food recipes-TFR: employing the European perspective. International Journal of Food, Nutrition and Public Health. 5 (1/2/3), pp. 3-18.

Respiratory and non-respiratory sinus arrhythmia: implications for heart rate variability
McMullen, M.K., Whitehouse, J., Towell, A. and Rhodes, G. 2012. Respiratory and non-respiratory sinus arrhythmia: implications for heart rate variability. Journal of Clinical Monitoring and Computing. 26 (1), pp. 21-28. https://doi.org/10.1007/s10877-011-9327-8

Caffeine in hot drinks elicits cephalic phase responses involving cardiac activity
McMullen, M.K., Whitehouse, J., Shine, G., Whitton, P.A. and Towell, A. 2012. Caffeine in hot drinks elicits cephalic phase responses involving cardiac activity. Food & Function. 3 (9), pp. 931-940. https://doi.org/10.1039/C2FO00002D

Obesity and low vision as a result of excessive internet use, and television viewing
Bener, A., Al-Mahdi, H.S., Ali, A.I., Al-Nufal, M., Vachhani, P.J. and Tewfik, I. 2011. Obesity and low vision as a result of excessive internet use, and television viewing. International Journal of Food Sciences and Nutrition. 62 (1), pp. 60-62. https://doi.org/10.3109/09637486.2010.495711

Artificial trans fatty acids in food supply: A global health threat
Salomaa V.K. and Tewfik, I. 2011. Artificial trans fatty acids in food supply: A global health threat. World Journal of Science, Technology and Sustainable Development. 8 (4), pp. 361-401. https://doi.org/10.1108/20425945201100017

The immediate and short-term chemosensory impacts of coffee and caffeine on cardiovascular activity
McMullen, M.K., Whitehouse, J., Shine, G., Whitton, P.A., Towell, A. and Rhodes, G. 2011. The immediate and short-term chemosensory impacts of coffee and caffeine on cardiovascular activity. Food & Function. 2 (9), pp. 547-554. https://doi.org/10.1039/C1FO10102A

Habitual coffee and tea drinkers experienced increases in blood pressure after consuming low to moderate doses of caffeine; these increases were larger upright than in the supine posture
McMullen, M.K., Whitehouse, J., Rhodes, G. and Towell, A. 2011. Habitual coffee and tea drinkers experienced increases in blood pressure after consuming low to moderate doses of caffeine; these increases were larger upright than in the supine posture. Food & Function. 2 (3-4), pp. 197-203. https://doi.org/10.1039/c0fo00166j

Globesity in action: systematic review and pilot intervention to assess the potential health benefit of moderate physical activity
Salah, M. and Tewfik, I. 2011. Globesity in action: systematic review and pilot intervention to assess the potential health benefit of moderate physical activity. in: Ahmed, A. and Busler, M. (ed.) World sustainable development outlook 2011. Sharing knowledge, making a difference: the role of international scientific cooperation World Association for Sustainable Development (WASD).

Conceptual framework of public health-nutrition intervention programme to attenuate the progression of HIV to AIDS among people living with HIV (PLWH) in Abuja, Nigeria
Amlogu, M.A., Tewfik, S., Wambebe, C., Godden, K. and Tewfik, I. 2011. Conceptual framework of public health-nutrition intervention programme to attenuate the progression of HIV to AIDS among people living with HIV (PLWH) in Abuja, Nigeria. in: Ahmed, A. and Busler, M. (ed.) World sustainable development outlook 2011. Sharing knowledge, making a difference: the role of international scientific cooperation World Association for Sustainable Development (WASD). pp. 11-20

The Finometer can function as a standalone instrument in blood pressure variability studies and does not require support equipment to determine breathing frequency
McMullen, M.K., Whitehouse, J., Shine, G. and Towell, A. 2010. The Finometer can function as a standalone instrument in blood pressure variability studies and does not require support equipment to determine breathing frequency. Blood Pressure Monitoring. 15 (4), pp. 220-224. https://doi.org/10.1097/MBP.0b013e328339e198

American skullcap (Scutellaria lateriflora): an ancient remedy for today’s anxiety?
Brock, C., Whitehouse, J., Tewfik, I. and Towell, A. 2010. American skullcap (Scutellaria lateriflora): an ancient remedy for today’s anxiety? British Journal of Wellbeing. 1 (4), pp. 25-30.

Somatosensory discrimination: an intracranial event-related potential study of children with refractory epilepsy
Spackman, L., Towell, A. and Boyd, S. 2010. Somatosensory discrimination: an intracranial event-related potential study of children with refractory epilepsy. Brain Research. 1310, pp. 68-76. https://doi.org/10.1016/j.brainres.2009.10.072

The Finometer can function as a standalone instrument in blood pressure variability studies and does not require support equipment to determine breathing frequency
Mcmullen, M., Whitehouse, J., Shine, G., Towell, A. and Rhodes, G. 2010. The Finometer can function as a standalone instrument in blood pressure variability studies and does not require support equipment to determine breathing frequency. Blood Pressure Monitoring. 15 (4), pp. 220-4. https://doi.org/10.1097/MBP.0b013e328339e198

Is Africa facing a nutrition transition under the double burden of disease?
Tewfik, I., Bener, A. and Tewfik, S. 2010. Is Africa facing a nutrition transition under the double burden of disease? in: Ahmed, A. and Nwankwo, S. (ed.) Achieving sustainable development in Africa: science, technology & innovation trajectory London World Association for Sustainable Development (WASD).

Competence-based training and assessment by portfolio: the health psychology model
Elander, J., Towell, A. and Fox, P. 2010. Competence-based training and assessment by portfolio: the health psychology model. Psychology Learning and Teaching. 6 (2), pp. 73-79. https://doi.org/10.2304/plat.2007.6.2.73

Can illusory deviant stimuli be used as attentional distractors to record vMMN in a passive three stimulus oddball paradigm?
Flynn, M., Liasis, A., Gardner, M., Boyd, S. and Towell, A. 2009. Can illusory deviant stimuli be used as attentional distractors to record vMMN in a passive three stimulus oddball paradigm? Experimental Brain Research. 197 (2), pp. 153-161. https://doi.org/10.1007/s00221-009-1901-7

Childhood obesity prevention in Emirates (COPE): a conceptual framework for pilot intervention
Tewfik, I., Mackenzie, J., Cunliffe, A., Al-Dhaheri, A., Ali, H., Washi, S. and Platat, C. 2009. Childhood obesity prevention in Emirates (COPE): a conceptual framework for pilot intervention. in: Ahmed, A. (ed.) World sustainable development outlook: the impact of the global financial crisis on the environment, energy and sustainable development 2009 London World Association for Sustainable Development (WASD).

Nutritional quality of deep fried street-vended foods: a public health concern
Tewfik, I., Ismail, H. and Tewfik, S. 2009. Nutritional quality of deep fried street-vended foods: a public health concern. in: Ahmed, A. (ed.) World sustainable development outlook: the impact of the global financial crisis on the environment, energy and sustainable development 2009 London World Association for Sustainable Development (WASD).

Are there ethnic differences in positive body image among female British undergraduates?
Swami, V., Airs, N., Chouhan, B., Padilla Leon, M.A. and Towell, A. 2009. Are there ethnic differences in positive body image among female British undergraduates? European Psychologist. 14 (4), pp. 288-296. https://doi.org/10.1027/1016-9040.14.4.288

Hepatic oxidative stress and apoptosis following acute alcohol
Everitt, H.E., Tewfik, I., Preedy, V.R. and Patel, V. 2009. Hepatic oxidative stress and apoptosis following acute alcohol. Alcohol & Alcoholism. 44, p. p85.

Assessment of shelf-life of irradiated frozen chicken
Alnasser, M.A., Park, S.F., Jenesson, P. and Tewfik, I. 2009. Assessment of shelf-life of irradiated frozen chicken. International Journal of Food Safety, Nutrition and Public Health. 2 (1), pp. 48-58. https://doi.org/10.1504/IJFSNPH.2009.026918

Would it still be possible to identify irradiated lipid-containing foods towards the end of their shelf-life?
Tewfik, I. and Tewfik, S. 2008. Would it still be possible to identify irradiated lipid-containing foods towards the end of their shelf-life? Food Science and Technology International. 14 (6), pp. 519-524. https://doi.org/10.1177/1082013208100465

Extraction and identification of cyclobutanones from irradiated cheese employing a rapid direct solvent extraction method
Tewfik, I. 2008. Extraction and identification of cyclobutanones from irradiated cheese employing a rapid direct solvent extraction method. International Journal of Food Sciences and Nutrition. 59 (7 & 8), pp. 590-598. https://doi.org/10.1080/09637480701515450

Inter-laboratory trial to validate the direct solvent extraction method for the identification of 2-dodecylcyclobutanone in irradiated chicken and whole liquid egg
Tewfik, I. 2008. Inter-laboratory trial to validate the direct solvent extraction method for the identification of 2-dodecylcyclobutanone in irradiated chicken and whole liquid egg. Food Science and Technology International. 14 (3), pp. 277-283. https://doi.org/10.1177/1082013208095689

Does prolonged breastfeeding reduce the risk for childhood leukemia and lymphomas?
Bener, A., Hoffmann, G.F., Afify, Z., Rasul, K., Mian, M., Guiter, G. and Tewfik, I. 2008. Does prolonged breastfeeding reduce the risk for childhood leukemia and lymphomas? Minerva Pediatrica. 60 (2), pp. 155-161.

Research Student Supervision: Developing Reflective Practice in Higher Education
Tewfik, I. 2008. Research Student Supervision: Developing Reflective Practice in Higher Education. in: Ahmed, Allam (ed.) World Sustainable Development Outlook 2008: Managing Science and Technology for a Sustainable Future Routledge. pp. 85-92

Nutraceuticals, functional foods and botanical dietary supplements; promote wellbeing and underpin public health
Tewfik, S. and Tewfik, I. 2008. Nutraceuticals, functional foods and botanical dietary supplements; promote wellbeing and underpin public health. World Review of Science, Technology and Sustainable Development. 5 (2), pp. 104-123. https://doi.org/10.1504/WRSTSD.2008.018552

Childhood obesity prevention (CHOP) programme: a conceptual framework for nutrition intervention
Tewfik, I. 2008. Childhood obesity prevention (CHOP) programme: a conceptual framework for nutrition intervention. International Journal of Food Safety, Nutrition and Public Health. 1 (1), pp. 16-32. https://doi.org/10.1504/IJFSNPH.2008.018853

Metabolic Syndrome and its components among Qatari population
Musallam, M., Bener, A., Zirie, M., Al-Gaud, Y.K., Al-Hamaq, A.A., Othman, M.A. and Tewfik, I. 2008. Metabolic Syndrome and its components among Qatari population. International Journal of Food Safety, Nutrition and Public Health. 1 (1), pp. 88-102. https://doi.org/10.1504/IJFSNPH.2008.018858

A thematic analysis of childrens' experiences of living with thalassemia major in Pakistan
Mufti, G.E.R., Cartwright, T. and Towell, A. 2008. A thematic analysis of childrens' experiences of living with thalassemia major in Pakistan. Psychology & Health. 23 (S1), p. 189. https://doi.org/10.1080/08870440802299543

Impact of lifestyle and dietary habits on hypovitaminosis D in type 1 diabetes mellitus and healthy children from Qatar, a sun-rich country
Bener, A., Alsaied, A., Al-Ali, M., Hassan, A.S., Basha, B., Al-Kubaisi, A., Abraham, A., Mian, M., Guiter, G., Tewfik, I. and Agha, M. 2008. Impact of lifestyle and dietary habits on hypovitaminosis D in type 1 diabetes mellitus and healthy children from Qatar, a sun-rich country. Annals of Nutrition and Metabolism. 53 (3-4), pp. 215-222. https://doi.org/10.1159/000184439

A rapid direct solvent extraction (DSE) method for the extraction of cyclobutanones from irradiated chicken and liquid whole egg
Tewfik, I. 2008. A rapid direct solvent extraction (DSE) method for the extraction of cyclobutanones from irradiated chicken and liquid whole egg. International Journal of Food Science and Technology. 43 (1), pp. 108-113. https://doi.org/10.1111/j.1365-2621.2006.01399.x

Nutrition and alcoholic liver disease
Everitt, H.E., Patel, V. and Tewfik, I. 2007. Nutrition and alcoholic liver disease. Nutrition Bulletin. 32 (2), pp. 138-144. https://doi.org/10.1111/j.1467-3010.2007.00627.x

Effects of stimulus frequency and duration on the somatosensory mismatch negativity
Spackman, L., Boyd, S. and Towell, A. 2007. Effects of stimulus frequency and duration on the somatosensory mismatch negativity. Clinical Neurophysiology. 118 (5), p. e175. https://doi.org/10.1016/j.clinph.2006.07.291

Illness perceptions in depersonalization disorder: testing an illness attribution model
Baker Towell, D.M., Earle, M., Medford, N., Sierra, M., Towell, A. and David, A.S. 2007. Illness perceptions in depersonalization disorder: testing an illness attribution model. Clinical Psychology & Psychotherapy. 14 (2), pp. 105-116. https://doi.org/10.1002/cpp.518

Effects of stimulus frequency and duration on somatosensory discrimination responses
Spackman, L., Boyd, S. and Towell, A. 2007. Effects of stimulus frequency and duration on somatosensory discrimination responses. Experimental Brain Research. 177 (1), pp. 21-30. https://doi.org/10.1007/s00221-006-0650-0

Nutrition and alcoholic liver disease
Everitt, H.E., Patel, V.B. and Tewfik, I. 2007. Nutrition and alcoholic liver disease. Nutrition Bulletin. 32 (2), pp. 138-144. https://doi.org/10.1111/j.1467-3010.2007.00627

Research Supervision: Training, process and experience
Tewfik, I. and Tewfik, S. 2007. Research Supervision: Training, process and experience. in: World Sustainable Development Outlook 2007: Knowledge Management and Sustainable Development in the 21st Century Routledge.

Plasma 5-HT And Fatigue During Endurance Cycle Exercise: Effects Of Exercise Intensity And Duration
Vleck, Veronica E., Asensio, Karine, Tewfik, Ihab, Webb, Heather, McNaughton, Lars, Lowry, Christopher and Bentley, David J. 2007. Plasma 5-HT And Fatigue During Endurance Cycle Exercise: Effects Of Exercise Intensity And Duration. Medicine & Science in Sports & Exercise. 39 (5), p. S273. https://doi.org/10.1249/01.mss.0000274050.00286.a9

The public health advocate: food irradiation's offer to food security
Tewfik, I. and Tewfik, S. 2007. The public health advocate: food irradiation's offer to food security. in: Ahmed, A. (ed.) Science, technology and sustainability in the Middle East and North Africa Genève InderScience. pp. 197-209

Competitive food safety program: the case of Qatar
Al-Hamaq, A.A., Zeyadah, S.S., Ahmed, A., Amuna, P. and Tewfik, I. 2007. Competitive food safety program: the case of Qatar. in: Ahmed, A. (ed.) Science, technology and sustainability in the Middle East and North Africa Genève InderScience. pp. 210-228

Identification and characterization of somatosensory off responses
Spackman, L., Boyd, S. and Towell, A. 2006. Identification and characterization of somatosensory off responses. Brain Research. 1114 (1), pp. 53-62. https://doi.org/10.1016/j.brainres.2005.12.135

Book review: B. Freire Wilma (editor). Nutrition and an Active Life: From Knowledge to Action. Scientific and Technical Publication No. 612. Washington DC: Pan American Health Organization 2005. US$ 36·00 (paperback) pp. 260. ISBN: 92 75 11612 1
Tewfik, I. 2006. Book review: B. Freire Wilma (editor). Nutrition and an Active Life: From Knowledge to Action. Scientific and Technical Publication No. 612. Washington DC: Pan American Health Organization 2005. US$ 36·00 (paperback) pp. 260. ISBN: 92 75 11612 1. British Journal of Nutrition. 96 (4), p. 793. https://doi.org/10.1079/BJN20061844

FC38.3 Characterization of somatosensory discrimination responses using scalp and intracranial recordings
Spackman, L., Boyd, S. and Towell, A. 2006. FC38.3 Characterization of somatosensory discrimination responses using scalp and intracranial recordings. Clinical Neurophysiology. 117 (Supplement 1), p. 1. https://doi.org/10.1016/j.clinph.2006.06.128

P36.42 Identification of a pre-attentive visual discrimination response
Flynn, M., Liasis, A., Gardner, M. and Towell, A. 2006. P36.42 Identification of a pre-attentive visual discrimination response. Clinical Neurophysiology. 117 (Supplement 1), p. 194. https://doi.org/10.1016/j.clinph.2006.06.651

Monitoring visual function in children with syndromic craniosynostosis: a comparison of 3 methods
Liasis, A., Nischal, K.K., Walters, B., Thompson, D., Hardy, S., Towell, A., Dunaway, D., Jones, B., Evans, R. and Hayward, R. 2006. Monitoring visual function in children with syndromic craniosynostosis: a comparison of 3 methods. Archives of Ophthalmology. 124 (8), pp. 1119-1126.

Evidence for a neurophysiologic auditory deficit in children with benign epilepsy with centro-temporal spikes
Liasis, A., Bamiou, D.E., Boyd, S. and Towell, A. 2006. Evidence for a neurophysiologic auditory deficit in children with benign epilepsy with centro-temporal spikes. Journal of Neural Transmission. 113 (7), pp. 939-949. https://doi.org/10.1007/s00702-005-0357-6

Prevalence of overweight, obesity, and associated psychological problems in Qatari's female population
Bener, A. and Tewfik, I. 2006. Prevalence of overweight, obesity, and associated psychological problems in Qatari's female population. Obesity Reviews. 7 (2), pp. 139-145. https://doi.org/10.1111/j.1467-789X.2006.00209.x

Prevalence of overweight, obesity, and associated psychological problems in Qatari's female population
Bener, A. and Tewfik, I. 2006. Prevalence of overweight, obesity, and associated psychological problems in Qatari's female population. Obesity Reviews. 7 (2), pp. 139-145. https://doi.org/10.1111/j.1467-789X.2006.00209.x

Industrial and dietetic applications of the food multimix (FMM) concept in meeting the nutritional needs of vulnerable groups in South Africa
Zotor, F., Amuna, P., Oldewage-Theron, W.H., Adewuya, T., Prinsloo, G., Chinyanga, Y., Tewfik, I. and Amuna, N. 2006. Industrial and dietetic applications of the food multimix (FMM) concept in meeting the nutritional needs of vulnerable groups in South Africa. Academic Journal of Vaal University of Technology. 3, pp. 54-67.

CO2 photoassimilation, chlorophyll fluorescence, lipid peroxidation and yield in cotton (Gossypium hirsutum L. cv Giza 65) in response to O3
Hassan, I.A. and Tewfik, I. 2006. CO2 photoassimilation, chlorophyll fluorescence, lipid peroxidation and yield in cotton (Gossypium hirsutum L. cv Giza 65) in response to O3. World Review of Science, Technology and Sustainable Development. 3 (1), pp. 70-79. https://doi.org/10.1504/WRSTSD.2006.008764

Prevalence of dieting, overweight, body image satisfaction and associated psychological problems in adolescent boys
Bener, A., Kamal, A., Tewfik, I. and Sabuncuoglu, O. 2006. Prevalence of dieting, overweight, body image satisfaction and associated psychological problems in adolescent boys. Nutrition & Food Science. 36 (5), pp. 295-304. https://doi.org/10.1108/00346650610703144

Health habits and risk of obesity among 6–13 year old school children and adolescents
Al-Shammari, H., Bumejjdad, A., Amuna, P. and Tewfik, I. 2005. Health habits and risk of obesity among 6–13 year old school children and adolescents. in: Carr, T. and Descheemaeker, K. (ed.) Nutrition and health - Current Topics IV Garant. pp. 207–208

Perceived control, locus of control and preparatory information: effects on the perception of an acute pain stimulus
Williams, D., Golding, J.F., Phillips, K. and Towell, A. 2004. Perceived control, locus of control and preparatory information: effects on the perception of an acute pain stimulus. Personality and Individual Differences. 36 (7), pp. 1681-1691. https://doi.org/10.1016/j.paid.2003.07.009

Would food irradiation as a means of technology transfer assist food productivity and security in Africa and sustain its development?
Tewfik, I., Amuna, P. and Zotor, F. 2004. Would food irradiation as a means of technology transfer assist food productivity and security in Africa and sustain its development? International Journal of Technology Policy and Management. 4 (1), pp. 44-52.

Human and economic development in developing countries: a public health dimension employing the food multimix concept
Amuna, P., Zotor, F. and Tewfik, I. 2004. Human and economic development in developing countries: a public health dimension employing the food multimix concept. World Review of Science, Technology and Sustainable Development. 1 (2), pp. 129-137.

Kava Lactones and the kava-kava controversy
Whitton, P.A., Lau, A., Salisbury, A., Whitehouse, J. and Evans, C.S. 2003. Kava Lactones and the kava-kava controversy. Phytochemistry. 64 (3), pp. 673-679. https://doi.org/10.1016/S0031-9422(03)00381-9

Speech and non-speech processing in hemispherectomised children: an event-related potential study
Liasis, A., Boyd, S., Rivera-Gaxiola, M. and Towell, A. 2003. Speech and non-speech processing in hemispherectomised children: an event-related potential study. Cognitive Brain Research. 17 (3), pp. 665-673. https://doi.org/10.1016/S0926-6410(03)00190-3

The prevalence and predictors of psychological distress in men with prostate cancer who are seeking support
Balderson, N. and Towell, A. 2003. The prevalence and predictors of psychological distress in men with prostate cancer who are seeking support. British Journal of Health Psychology. 8 (2), pp. 125-134. https://doi.org/10.1348/135910703321649114

A preliminary investigation into quality of life, psychological distress and social competence in children with Cloacal Exstrophy
Baker Towell, D.M. and Towell, A. 2003. A preliminary investigation into quality of life, psychological distress and social competence in children with Cloacal Exstrophy. Journal of Urology. 169 (5), pp. 1850-1853. https://doi.org/10.1097/01.ju.0000062480.01456.34

Time for a new approach for reporting herbal medicine adverse events?
Peters, D., Donaldson, J., Chaussalet, T.J., Toffa, S.E., Whitehouse, J., Carroll, D. and Barry, P. 2003. Time for a new approach for reporting herbal medicine adverse events? Journal of Alternative & Complementary Medicine. 9 (5), pp. 607-609.

Functional outcome following stroke in children
Towell, A., Gordon, A., Ganesan, V. and Kirkham, F. 2002. Functional outcome following stroke in children. Journal of Child Neurology. 17 (6), pp. 429-434.

The impostor phenomenon in British university students: relationships between self-esteem, mental health, parental rearing style and socioeconomic status
Sonnak, C. and Towell, A. 2001. The impostor phenomenon in British university students: relationships between self-esteem, mental health, parental rearing style and socioeconomic status. Personality and Individual Differences. 31 (6), pp. 863-874. https://doi.org/10.1016/S0191-8869(00)00184-7

Compliance and outcome in treatment-resistant anorexia and bulimia: a retrospective study
Baker Towell, D.M., Woodford, S., Reid, S., Rooney, B. and Towell, A. 2001. Compliance and outcome in treatment-resistant anorexia and bulimia: a retrospective study. British Journal of Clinical Psychology. 40 (2), pp. 189-195.

Intracranial identification of an electric frontal-cortex response to auditory stimulus change: a case study
Liasis, A., Towell, A., Alho, K. and Boyd, S. 2001. Intracranial identification of an electric frontal-cortex response to auditory stimulus change: a case study. Cognitive Brain Research. 11 (2), pp. 227-233. https://doi.org/10.1016/S0926-6410(00)00077-X

Auditory event-related potentials in the assessment of auditory processing disorders: a pilot study
Liasis, A., Bamiou, D.E., Campbell, P. and Towell, A. 2001. Auditory event-related potentials in the assessment of auditory processing disorders: a pilot study. Neuropediatrics. 34, pp. 23-29.

Does the pre-frontal cortex contribute to movement-related potentials? Recordings from subdural electrodes
Jahanshahi, M., Dirnberger, G., Liasis, A., Towell, A. and Boyd, S. 2001. Does the pre-frontal cortex contribute to movement-related potentials? Recordings from subdural electrodes. Neurocase. 7 (6), pp. 495-501. https://doi.org/10.1093/neucas/7.6.495

The effect of intermittent heating on some chemical parameters of refined oils used in Egypt. A public health nutrition concern
Tewfik, I., Ismail, H. and Sumar, S. 1998. The effect of intermittent heating on some chemical parameters of refined oils used in Egypt. A public health nutrition concern. International Journal of Food Sciences and Nutrition. 49 (5), pp. 339-342. https://doi.org/10.3109/09637489809089408

A rapid supercritical fluid extraction method for the detection of 2-alkylcyclobutanones in gamma irradiated beef and chicken
Tewfik, I., Ismail, H. and Sumar, S. 1998. A rapid supercritical fluid extraction method for the detection of 2-alkylcyclobutanones in gamma irradiated beef and chicken. Lebensmittel-Wissenschaft und-Technologie = Journal of Food Sciences and Technology. 31 (4), pp. 366-370. https://doi.org/10.1006/fstl.1998.0371

A rapid direct solvent extraction method (DSE-GC-MS) used to detect irradiated minced beef
Tewfik, I., Ismail, H. and Sumar, S. 1998. A rapid direct solvent extraction method (DSE-GC-MS) used to detect irradiated minced beef. Bulletin of High Institute of Public Health. 28 (3), pp. 85-92.

A rapid supercritical fluid extraction method for the qualitative detection of 2-alkylcyclobutanones in gamma-irradiated fresh and sea water fish
Tewfik, I. 1998. A rapid supercritical fluid extraction method for the qualitative detection of 2-alkylcyclobutanones in gamma-irradiated fresh and sea water fish. International Journal of Food Sciences and Nutrition. 50 (1), pp. 51-56. https://doi.org/10.1080/096374899101418

A rapid method (SFE-GC-MS) used to detect irradiated minced beef
Tewfik, I., Ismail, H., Amine, E. and Rady, A. 1996. A rapid method (SFE-GC-MS) used to detect irradiated minced beef. Arab Journal of Nuclear Sciences and Applications. 29 (4), pp. 345-353.

Permalink - https://westminsterresearch.westminster.ac.uk/item/8yx0q/identity-issues-surrounding-american-skullcap-scutellaria-lateriflora-and-an-optimised-high-performance-liquid-chromatography-method-to-authenticate-commercially-available-products


Share this

Usage statistics

147 total views
407 total downloads
These values cover views and downloads from WestminsterResearch and are for the period from September 2nd 2018, when this repository was created.