SEARCHNARRATIVE_REVIEWendocrinology, nutrition

narrative_review·endocrinology, nutrition, preclinical research, biomedical research, systematic review·PMC10609527

Phytochemical Content and Antidiabetic Properties of Most Commonly Used Antidiabetic Medicinal Plants of Kenya

Molecules · 4 authors, 5 centres

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TL;DR

The review identified flavonoids and terpenoids as major chemical classes.

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The review identified flavonoids and terpenoids as major chemical classes. Specific isolated compounds from Allium cepa, such as quercetin and luteolin derivatives, also showed significant antidiabetic activity. The review highlights that 9 species have not yet been evaluated, and that research on isolated compounds is limited, with most studies conducted on plants from other countries.

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narrative_review

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endocrinology

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ORIGINAL PAPER

PMC10609527

Phytochemical Content and Antidiabetic Properties of Most Commonly Used Antidiabetic Medicinal Plants of Kenya

Molecules

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ABSTRACT

Traditional medicinal plants have been used for decades in folk medicines in the treatment and management of several ailments and diseases including diabetes, pain, ulcers, cancers, and wounds, among others. This study focused on the phytochemical and antidiabetic activity of the commonly used antidiabetic medicinal species in Kenya. Phytochemical profiling of these species revealed flavonoids and terpenoids as the major chemical classes reported which have been linked with strong biological activities against the aforementioned diseases, among others. However, out of the selected twenty-two species, many of the natural product isolation studies have focused on only a few species, as highlighted in the study. All of the examined crude extracts from thirteen antidiabetic species demonstrated strong antidiabetic activities by inhibiting α-glucosidase and α-amylase among other mechanisms, while nine are yet to be evaluated for their antidiabetic activities. Isolated compounds S-Methylcysteine sulfoxide, quercetin, alliuocide G, 2-(3,4-Dihydroxybenzoyl)-2,4,6-trihydroxy-3 (2 H )-benzofuranone, Luteolin-7- O -D-glucopyranoside, quercetin, 1,3,11 α -Trihydroxy-9-(3,5,7-trihydroxy-4 H -1-benzopyran-7-on-2-yl)-5 α -(3,4-dihydroxy-phenyl)-5,6,11-hexahydro-5,6,11-trioxanaphthacene-12-one and [1,3,11 α -Trihydroxy-9-(3,5,7-trihydroxy-4 H -1-benzopyran-7-on-2-yl)-5 α -(3,4-dihydroxy-phenyl)-5,6,11-hexahydro-5,6,11-trioxanaphthacene-12-one]-4′- O -D-gluco-pyranoside from Allium cepa have been found to exhibit significant antidiabetic activities. With the huge number of adults living with diabetes in Kenya and the available treatment methods being expensive yet not so effective, this study highlights alternative remedies by documenting the commonly used antidiabetic medicinal plants. Further, the study supports the antidiabetic use of these plants with the existing pharmacological profiles and highlights research study gaps. Therefore, it is urgent to conduct natural products isolation work on the selected antidiabetic species commonly used in Kenya and evaluate their antidiabetic activities, both in vitro and in vivo, to validate their antidiabetic use and come up with new antidiabetic drugs.

CITATION EXPORT

Felix Wambua Muema, Consolata Nanjala, Millicent Akinyi Oulo et al.. Phytochemical Content and Antidiabetic Properties of Most Commonly Used Antidiabetic Medicinal Plants of Kenya. Molecules. (2023). https://doi.org/10.3390/molecules28207202

AUTHORS

4 · 5 CENTRES

Felix Wambua Muema, Consolata Nanjala, Millicent Akinyi Oulo, Phurpa Wangchuk

1CAS Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, China; [email protected] (F.W.M.); [email protected] (M.A.O.)
2University of Chinese Academy of Sciences, Beijing 100049, China
3College of Science and Engineering, James Cook University, Cairns, QLD 4870, Australia; [email protected]
4Australian Tropical Herbarium, James Cook University, Cairns, QLD 4878, Australia
5Centre for Molecular Therapeutics, Australian Institute of Tropical Health and Medicine, James Cook University, Building E4, McGregor Rd., Smithfield, Cairns, QLD 4878, Australia

EDITOR / REVIEWER

Wei-dong Xie