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Open AccessReview

Uncaria tomentosa (Willd. ex Schult.) DC.: A Review on Chemical Constituents and Biological Activities

1
National Research Center for Protozoan Diseases, Obihiro University of Agriculture and Veterinary Medicine, Nishi 2-13, Inada-cho, Obihiro 080-8555, Hokkaido, Japan
2
Department of Pharmacology and Therapeutics, Faculty of Veterinary Medicine, Damanhour University, Damanhour 22511, Al Beheira, Egypt
3
Department of Histology and Cytology, Faculty of Veterinary Medicine, Zagazig University, Zagazig 44511, Egypt
4
Laboratory of Anatomy, Department of Biomedical Sciences, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo 060-0818, Hokkaido, Japan
5
Department of Poultry, Faculty of Agriculture, Zagazig University, Zagazig 44511, Egypt
6
Department of Animal Husbandry and Animal Wealth Development, Faculty of Veterinary Medicine, Alexandria University, Edfina 22578, Egypt
7
Animal Production Department, Faculty of Agriculture, Zagazig University, Zagazig 44511, Egypt
8
Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-Honmachi, Chuo-ku, Kumamoto City, Kumamoto 862-0973, Japan
9
DETO—Section of Veterinary Science and Animal Production, University of Bari ‘Aldo Moro’ s.p. Casamassima km 3, 70010 Valenzano, Italy
*
Author to whom correspondence should be addressed.
Equally contributed.
Appl. Sci. 2020, 10(8), 2668; https://doi.org/10.3390/app10082668
Received: 20 January 2020 / Revised: 10 March 2020 / Accepted: 11 March 2020 / Published: 13 April 2020
(This article belongs to the Special Issue Biomedical Application of Plant Extracts)
Uncaria tomentosa (Willd. ex Schult.) DC. (Family: Rubiaceae), commonly known as cat’s claw, is a tropical medicinal vine originating at the Amazon rainforest and other areas of South and Central America. It has been traditionally used to treat asthma, abscesses, fever, urinary tract infections, viral infections, and wounds and found to be effective as an immune system rejuvenator, antioxidant, antimicrobial, and anti-inflammatory agent. U. tomentosa is rich in many phytoconstituents such as oxindole and indole alkaloids, glycosides, organic acids, proanthocyanidins, sterols, and triterpenes. Biological activities of U. tomentosa have been examined against various microorganisms and parasites, including pathogenic bacteria, viruses, and Plasmodium, Babesia and Theileria parasites. Several formulations of cat’s claw (e.g., tinctures, decoctions, capsules, extracts, and teas) are recently available in the market. The current review covers the chemical constituents, biological activities, pharmacokinetics, and toxic properties of U. tomentosa extracts. View Full-Text
Keywords: Uncaria tomentosa; cat’s claw; biological activities; pharmacokinetics; phytoconstituents Uncaria tomentosa; cat’s claw; biological activities; pharmacokinetics; phytoconstituents
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Batiha, G. .-S.; Magdy Beshbishy, A.; Wasef, L.; Elewa, Y.H.A.; Abd El-Hack, M.E.; Taha, A.E.; Al-Sagheer, A.A.; Devkota, H.P.; Tufarelli, V. Uncaria tomentosa (Willd. ex Schult.) DC.: A Review on Chemical Constituents and Biological Activities. Appl. Sci. 2020, 10, 2668.

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