Laloo D, Prasad SK, Sairam K, Hemalatha S. Gastroprotective activity of polyphenolic-rich extract of Potentilla mooniana.
PHARMACEUTICAL BIOLOGY 2014;
52:1532-1542. [PMID:
25026332 DOI:
10.3109/13880209.2014.905794]
[Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
CONTEXT
Potentilla mooniana Wight. (Rosaceae) is a plant found in the Himalayan region where the root is traditionally used to treat stomach problems including gastric-ulcer.
OBJECTIVE
To scientifically validate the gastro-protective effect and derive the possible mechanistic activity of the ethanol root extract from P. mooniana (EPM).
MATERIALS AND METHODS
The gastroprotective effect of EPM (100-400 mg/kg, p.o.) was evaluated on both the physical (Pyloric ligation, PL; Cold restrain stress, CRS) and chemical (absolute ethanol, EtOH; aspirin, ASP) ulcerogens induced ulceration in rats. The mechanistic activity of EPM was tested on various gastric-ulcer parameters, namely gastric pH, volume, acid-pepsin output, DNA content, histamine level, H(+)K(+)-ATPase activity, mucus content, microvascular permeability, antioxidant markers, and gastric-histopathological study.
RESULTS
EPM significantly reduces the ulcer score against all the four tested gastric-ulcer models. In the PL model, EPM showed significant reduction (p < 0.05) in acid-pepsin output and cell shedding; however, no significant effect was observed on gastric volume, cell proliferation, stomach glandular weight, and histamine levels. EPM (400 mg/kg, p.o.) when compared with ulcer control showed significant increase in gastric pH by 41.6% and decrease in H(+)K(+)-ATPase activity by 47.73%. In addition, EPM showed significant increase in mucus content by 58.60% and a decrease in the microvascular permeability of Evans Blue by 85.00%, justifying its protective effects. Furthermore, EPM also showed significant antioxidant activity and histopathologically possessed excellent cytoprotective effect.
CONCLUSION
The gastro-protective effect of EPM is attributed mainly to the defensive mechanism owing to the presence of a good quantity of polyphenolic components.
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