In vitro screening for protein tyrosine phosphatase 1B and dipeptidyl peptidase IV inhibitors from selected Nigerian medicinal plants.
JOURNAL OF COMPLEMENTARY MEDICINE RESEARCH 2016;
6:154-157. [PMID:
28512596 PMCID:
PMC5429074 DOI:
10.5455/jice.20161219011346]
[Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2016] [Accepted: 12/04/2016] [Indexed: 12/17/2022]
Abstract
Background/Aim:
Protein tyrosine phosphatase 1B (PTP 1B) and dipeptidyl peptidase IV (DPP IV) have been identified as one of the drug targets for the treatment of Type-2 diabetes. This study was designed to screen for PTP 1B and DPP-IV inhibitors from some Nigerian medicinal plants.
Materials and Methods:
PTP 1B and DPP-IV drug discovery kits from Enzo Life Sciences were used to investigate in vitro inhibitory effect of crude methanolic extract of 10 plants; Mangifera indica, Moringa oleifera, Acacia nilotica, Arachis hypogaea, Senna nigricans, Azadirachta indica, Calotropis procera, Leptadenia hastata, Ziziphus mauritiana, and Solanum incanum.
Results:
The results indicated PTP IB inhibition by S. nigricans (68.2 ± 2.29%), A. indica (67.4 ± 2.80%), A. hypogaea (57.2 ± 2.50%), A. nilotica (55.1 ± 2.19%), and M. oleifera (41.2 ± 1.87%) were significantly (P < 0.05) higher as compared with standard inhibitor, sumarin while that of L. hastata (18.1 ± 2.00%) was significantly lower as compared with sumarin. The PTB 1B inhibition by M. indica (31.5 ± 1.90%) was not significantly (P > 0.05) different from that of sumarin. The DPP-IV inhibition by S. incanum (68.1 ± 2.71%) was significantly higher as compared with a known inhibitor, P32/98. S. nigrican (57.0±1.91%), Z. mauritiana (56.6±2.01%), A. hypogaea (51.0±1.30%), M. indica (44.6 ± 2.40%), C. procera (36.2 ± 2.00%), A. nilotica (35.4 ± 2.10%), and A. indica (33.6 ± 1.50%) show significantly (P < 0.05) lower inhibitions toward DPP-IV.
Conclusion:
The work demonstrated that these plant materials could serve as sources of lead compounds in the development of anti-diabetic agent(s) targeting PTP 1B and/or DPP-IV.
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