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2022 - Mutagenicity and safety pharmacology of a standardized antidiabetic polyherbal formulation

icon pap   Port-a-Patch Publication in Nature Scientific Reports (2022)

Majid F.A.A., Fadhlina A., Ismail H.F., Zainol S.N., Mamillapalli A.K., Venkatesan V., Eswarappa R., Pillai R.

Nature Scientific Reports (2022) doi:10.1038/s41598-022-11243-3


Synacinn is a standardized polyherbal extract formulated for the treatment of diabetes mellitus and its complications. This study aims to assess the mutagenicity potential of Synacinn by Ames assay and in vivo bone marrow micronucleus (MN) test on Sprague Dawley rat. Human ether-a-go-go-related gene (hERG) assay and Functional Observation Battery (FOB) were done for the safety pharmacology tests. In the Ames assay, Dose Range Finding (DRF) study and mutagenicity assays (+/− S9) were carried out. For the MN test, a preliminary and definitive study were conducted. In-life observations and number of immature and mature erythrocytes in the bone marrow cells were recorded. The hERG assay was conducted to determine the inhibitory effect on hERG potassium channel current expressed in human embryonic kidney cells (HEK293). FOB tests were performed orally (250, 750, and 2000 mg/kg) on Sprague Dawley rats. Synacinn is non-mutagenic against all tested strains of Salmonella typhimurium and did not induce any clastogenicity in the rat bone marrow. Synacinn also did not produce any significant inhibition (p ≤ 0.05) on hERG potassium current. Synacinn did not cause any neurobehavioural changes in rats up to 2000 mg/kg. Thus, no mutagenicity, cardiotoxicity and neurotoxicity effects of Synacinn were observed in this study.

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