Neelam Gul Qazi1,
Arif-ullah Khan1 
,
Fawad Ali1,2
For correspondence:- Arif-ullah Khan Email: arif.ullah@riphah.edu.pk
Accepted: 15 August 2017 Published: 30 September 2017
Citation: Qazi NG, Khan A, Ali F. Anti-diarrheal, anti-secretory, anti-spasmodic and anti-ulcer activities of Acacia modesta (Mimosaceae) aerial parts. Trop J Pharm Res 2017; 16(9):2231-2237 doi: 10.4314/tjpr.v16i9.26
© 2017 The authors.
This is an Open Access article that uses a funding model which does not charge readers or their institutions for access and distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0) and the Budapest Open Access Initiative (http://www.budapestopenaccessinitiative.org/read), which permit unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited..
Purpose: To explore the pharmacological basis for folkloric use of Acacia modesta for treating diarrhea and gastrointestinal spasm.
Methods: Acacia modesta crude extract (Am.Cr) for antidiarrheal activity (100, 300 and 1000 mg/kg) was investigated in terms of reduction in diarrhea droppings in castor-oil induced diarrhea, while antisecretory activity (300 and 1000 mg/kg) was studied in castor-oil induced model in mice. Isolated rabbit jejunum tissues were employed for in vitro experiments. For antiulcer assay, ethanol-induced gastrointestinal ulcer rat model was used.
Results: Am.Cr tested positive for alkaloid, tannins and flavonoids. It exhibited protective effect against castor oil-induced diarrhea and intestinal fluid accumulation in mice at 100 - 1000 mg/kg, similar to the standard drugs, loperamide and atropine respectively. In isolated tissue (rabbit jejunum), Am.Cr concentration-dependently (0.01 - 3.0 mg/mL) produced relaxation of K+ (80 mM)-induced and spontaneous contractions at concentrations to papaverine. Am.Cr significantly inhibited (p < 0.001) ethanol-induced gastric ulceration in rats. In acute toxicity testing Am.Cr did not produce any mortality up to 5 g/kg dose.
Conclusion: These results show that Acacia modesta possesses anti-diarrheal, anti-secretory, anti-spasmodic and anti-ulcer activities, probably mediated through dual mechanisms, including Ca2+ influx and PDE enzyme(s) inhibition. The presence of phytochemicals, such as flavonoids and tannins, suggest the validity of the acclaimed ethnomedicinal effects in hyperactive gut disorders.
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