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We investigated the hepato-protective effects of thymoquinone (TQ) and beta-aminoisobutyric acid (BAIBA). We used five groups of 8-week-old male rats: untreated control group, streptozotocin (STZ) diabetic group, STZ + TQ group, STZ + BAIBA group, and STZ + TQ + BAIBA group. After experimental diabetes mellitus (DM) was established using STZ, TQ was given to the STZ + TQ group, BAIBA to the STZ + BAIBA group, and TQ and BAIBA to the STZ + TQ + BAIBA group. In the STZ group, body weight, relative liver weight, and glutathione, blood albumin and insulin levels were decreased compared to the control. Also, water and food consumption, tumor necrosis factor-α expression, malondialdehyde, blood glucose, alanine aminotransferase, aspartate aminotransferase and gamma glutamyl transferase levels were increased the STZ group compared to the control group. In the STZ group, sinusoid congestion and dilation, monocyte and lymphocyte infiltration and microvesicular steatosis were observed in the liver tissue. Pathological changes caused by DM were reduced significantly in the STZ + TQ, STZ + BAIBA and STZ + TQ + BAIBA groups. The protective effect of BAIBA was greater than for TQ; the greatest protective effect was observed following combined use of TQ + BAIBA. We suggest that our findings for the STZ + TQ, STZ + BAIBA and STZ + TQ + BAIBA groups were due to the antioxidant effects of TQ and BAIBA. TQ and BAIBA appear to be potential therapeutic agents for ameliorating hepatic damage due to DM.


İbrahim Aktaş, Fatih Mehmet Gür. Hepato-protective effects of thymoquinone and beta-aminoisobutyric acid in streptozocin induced diabetic rats. Biotechnic & histochemistry : official publication of the Biological Stain Commission. 2022 Jan;97(1):67-76

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PMID: 34281431

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