Hellen Oketch‐Rabah

1.9k citations

37 papers · 1.1k indexed · h-index 19

Impact in

Complementary and alternative medicine top 5%
Biochemistry top 5%
- Traditional and Medicinal Uses of Annonaceae

Papers in

Complementary and alternative medicine 8
- Complementary and Alternative Medicine Studies 6
Pharmacology 8
- Pharmacology and Obesity Treatment 3
- Pharmacological Effects of Natural Compounds 3

Co-authors: Amy L. Roe Robin J. Marles Joseph M. Betz S. F. Dossaji E.K. Mberu J. N. Lisgarten S. Brøgger Christensen Arsalan Kharazmi
Journals: Planta Medica (4 papers)Journal of Natural Products (3 papers)Clinical Pharmacology & Therapeutics (2 papers)Pharmaceutical Biology (2 papers)Regulatory Toxicology and Pharmacology (2 papers)
Partner nations: United States Kenya United Kingdom

In The Last Decade

Hellen Oketch‐Rabah

35 papers receiving 1.1k citations

Peers

Countries citing papers authored by Hellen Oketch‐Rabah

Since Specialization

Citations

This map shows the geographic impact of Hellen Oketch‐Rabah's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Hellen Oketch‐Rabah with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Hellen Oketch‐Rabah more than expected).

Fields of papers citing papers by Hellen Oketch‐Rabah

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Hellen Oketch‐Rabah. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Hellen Oketch‐Rabah. The network helps show where Hellen Oketch‐Rabah may publish in the future.

Co-authorship network

The 25 scholars most cited alongside Hellen Oketch‐Rabah, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with Hellen Oketch‐Rabah Line = papers co-authored together Hellen Oketch‐Rabah links everyone, so they are left out of the graph.

All Works

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20 of 20 papers shown

#	Work
1	An exploratory evaluation of the interaction risk between herbal products and pharmaceutical medicines used concurrently for disease management in Blantyre, Malawi Pharmaceutical Biology ·Douglas L. Coyle, 李文蓓, Ibrahim Chikowe, مهديد ابراهيم, Nozgechi Phiri, Malango Msukwa, Chimota Phiri, Amy L. Roe, Mary F. Paine, Bill J. Gurley, Hellen Oketch‐Rabah, Stefan Gafner, Mary Pat Stahl, Constance A. Mitchell, Michelle R. Embry, Syril Pettit, Dallas J. Smith	2025	0
2	Potential pharmacokinetic interactions with concurrent use of herbal medicines and a ritonavir-boosted COVID-19 protease inhibitor in low and middle-income countries Frontiers in Pharmacology ·Dallas J. Smith, Huichang Bi, Josias H. Hamman, Xiaochao Ma, Constance A. Mitchell, Douglas L. Coyle, Ernesto A Guevara, Hellen Oketch‐Rabah, Mary F. Paine, Syril Pettit, David Campbell‐Davidson, Richard B. van Breemen, Michelle R. Embry	2023	0
3	Improving the rigor and utility of botanical toxicity studies: Recommended resources Regulatory Toxicology and Pharmacology ·裕人山中, Barbara C. Sorkin, Constance A. Mitchell, Michelle R. Embry, M.C. Uwamahoro, 千恵美太古, Erica Folly Rosa de Marchi, 岩田健悟, Stefan Gafner, O Kelber, Cynthia V. Rider, Hellen Oketch‐Rabah, Amy L. Roe, Robin J. Marles, I Najbor, Joseph-Kelvin Igwe	2023	7
4	United States Pharmacopeia comprehensive safety review of Styphnolobium japonicum flower and flower bud Phytotherapy Research ·Ernest Q. Petrey, Л. А. Суворова, Hellen Oketch‐Rabah, Ángela I. Calderón	2022	9
5	Understanding plant to extract ratios in botanical extracts Frontiers in Pharmacology ·Marı́a Monagas, Thomas Brendler, Josef A. Brinckmann, Joseph-Kelvin Igwe, Stefan Gafner, Gabriel I. Giancaspro, ムハンマドエシーバ, Θεόδωρος Μπαταλής, Cuiying Ma, Hellen Oketch‐Rabah, Pilar Pais, Nandakumara Sarma, Robin J. Marles	2022	33
6	Considerations for determining safety of probiotics: A USP perspective Regulatory Toxicology and Pharmacology ·Amy L. Roe, Farhana Fitria Mustari, 西島昭彦, Junlin Huang, James T. Heimbach, Emily A. Madden, Hellen Oketch‐Rabah, Mary Ellen Sanders, Jay E. Sirois, A Smith	2022	53
7	Safety of Guarana Seed as a Dietary Ingredient: A Review Journal of Agricultural and Food Chemistry ·J Roger, Sandra Patrícia de Faria-Nascimento, Hellen Oketch‐Rabah, Robin J. Marles, Amy L. Roe, Ángela I. Calderón	2019	18
8	Quality specifications for articles of botanical origin from the United States Pharmacopeia Phytomedicine ·Cuiying Ma, Hellen Oketch‐Rabah, Nam-Cheol Kim, Marı́a Monagas, Anton Bzhelyansky, Nandakumara Sarma, Gabriel I. Giancaspro	2018	17
9	US Pharmacopeial Convention safety evaluation of menaquinone-7, a form of vitamin K Nutrition Reviews ·Robin J. Marles, Amy L. Roe, Hellen Oketch‐Rabah	2017	53
10	The Importance of Quality Specifications in Safety Assessments of Amino Acids: The Cases of L-Tryptophan and L-Citrulline Journal of Nutrition ·Hellen Oketch‐Rabah, Amy L. Roe, Bill J. Gurley, James C. Griffiths, Gabriel I. Giancaspro	2016	14
11	Mondia whitei, a Medicinal Plant from Africa with Aphrodisiac and Antidepressant Properties: A Review Journal of Dietary Supplements ·Hellen Oketch‐Rabah	2012	23
12	Proliferation of Estrogen Receptor-α-Positive Mammary Epithelial Cells Is Restrained by Transforming Growth Factor-β1 in Adult Mice American Journal Of Pathology ·Kenneth Ewan, Hellen Oketch‐Rabah, Shraddha A. Ravani, G. Shyamala, Harold L. Moses, Mary Helen Barcellos‐Hoff	2005	96
13	Black cohosh, a menopausal remedy, does not have estrogenic activity and does not promote breast cancer cell growth International Journal of Oncology ·Ruth Lupu, Inderjit Mehmi, Ella Atlas, Min‐Shan Tsai, Emily Pisha, Hellen Oketch‐Rabah, Paiboon Nuntanakorn, Edward J. Kennelly, Fredi Kronenberg	2003	47
14	Anti-plasmodial activities and X-ray crystal structures of rotenoids from Millettia usaramensis subspecies usaramensis Phytochemistry ·Abiy Yenesew, Solomon Derese, Jacob O. Midiwo, Hellen Oketch‐Rabah, J. N. Lisgarten, Rex A. Palmer, Matthias Heydenreich, Martin G. Peter, Hoseah M. Akala, Kristen Kao, Dustin Burton, Norman C. Waters	2003	60
15	Medicinal plants used by Luo mothers and children in Bondo district, Kenya Journal of Ethnopharmacology ·P. Wenzel Geißler, Stephen A. Harris, Ruth J. Prince, Anja Olsen, Rachael Odhiambo, Hellen Oketch‐Rabah, Orlando Hall Rose, 孙维靖, Per Mølgaard	2002	105
16	A new antiplasmodial coumarin from Toddalia asiatica roots Fitoterapia ·Hellen Oketch‐Rabah, Julius Mwangi, J. N. Lisgarten, E.K. Mberu	2000	77
17	Antimalarial Activity of Some Kenyan Medicinal Plants Pharmaceutical Biology ·Hellen Oketch‐Rabah, S. F. Dossaji, E.K. Mberu	1999	23
18	MOLLUSCICIDES OF PLANT ORIGIN : MOLLUSCICIDAL ACTIVITY OF SOME KENYAN MEDICINAL PLANTS South African Journal of Science ·S. F. Dossaji, Hellen Oketch‐Rabah	1998	7
19	Antiprotozoal Properties of 16,17-Dihydroxybrachycalyxolide fromVernonia brachycalyx Planta Medica ·Hellen Oketch‐Rabah, S. Brøgger Christensen, Karla Frydenvang, SF Dossaji, Thor G. Theander, Claus Cornett, William A. Watkins, Arsalan Kharazmi, Else Lemmich	1998	38
20	Antiprotozoal Compounds fromAsparagus africanus Journal of Natural Products ·Hellen Oketch‐Rabah, S. F. Dossaji, S. Brøgger Christensen, Karla Frydenvang, Else Lemmich, Claus Cornett, Carl Erik Olsen, Ming Chen, Arsalan Kharazmi, Thor G. Theander	1997	72

About Hellen Oketch‐Rabah

Hellen Oketch‐Rabah is a scholar working on Complementary and alternative medicine, Pharmacology, Biochemistry, Complementary and Manual Therapy and Plant Science, having authored 37 papers that have together received 1.1k indexed citations. Recurring topics across this work include Complementary and Alternative Medicine Studies (6 papers), Ethnobotanical and Medicinal Plants Studies (5 papers), Chemical synthesis and alkaloids (4 papers), Traditional and Medicinal Uses of Annonaceae (4 papers), Pharmacology and Obesity Treatment (3 papers), Pharmacological Effects of Natural Compounds (3 papers), Phytochemistry and Biological Activities (3 papers) and Malaria Research and Control (3 papers). The work is most often cited by research in Complementary and alternative medicine (131 citations), Biochemistry (100 citations), Forestry (55 citations), Pharmacology (108 citations) and Plant Science (425 citations). Hellen Oketch‐Rabah has collaborated with scholars based in United States, Kenya and United Kingdom. Frequent co-authors include Amy L. Roe, Robin J. Marles, Joseph M. Betz, S. F. Dossaji, E.K. Mberu, J. N. Lisgarten, S. Brøgger Christensen, Arsalan Kharazmi, Else Lemmich and Claus Cornett. Their work appears in journals such as Planta Medica, Journal of Natural Products, Clinical Pharmacology & Therapeutics, Pharmaceutical Biology and Regulatory Toxicology and Pharmacology.

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