Background: Ischemia-reperfusion (I/R) injury is an unavoidable side effect of liver surgery and transplantation. A potentially useful tool for cellular therapy and tissue engineering is adipose-derived stem cells (ADSCs). The study's goal was to examine the impact of ADSCs in rat hepatic ischemia-reperfusion injury. Material and methods: 30 male rats were randomly divided into the control, ADSCs, ischemia , I/R , I/R+ADSC groups (n = 6). A model for hepatic I/R injury that is evaluated by histological changes with Suzuki scores. The immunoexpression of LC3B, p62 and transforming growth factor (TGF- β)were analyzed. Results: The ischemia and I/R groups displayed clear liver sinusoid congestion, vacuolization, and necrosis. The expression of key autophagy indicators LC3B increased whereas p62 decreased following ischemia reperfusion. TGF- β was significantly elevated in the rat liver from ischemia and I/R groups. The IRI-induced histopathological damage was improved by ADSC transplantation. Conclusion: ADSCs reduced the excessive level of the autophagy and structural damage to hepatocytes and the pathological alterations in the liver after ıschemia-reperfusion injury.

Objective: Vitamin D has a protective role in the cardiovascular system and it affects blood pressure. Omega-3 fatty acids are dietary fats gained from fish and plant oils and involve in coronary heart disease and other cardiovascular complications. The aim of the study was to investigate the effects of Vitamin D and Omega 3 on the vascular structure at the cellular level. Material and Methods: In the current study, a total of 24 rats were divided into 4 groups. Each group contained 6 animals. The groups are as follows; control, vitamin D, Omega 3; and combined Vitamin D and Omega 3. Vena cava samples from all groups were obtained and stained with hematoxylin and eosin (H&E) for histological alternations. Additionally, endothelial and vascular functions were investigated immunohistochemically. Results: The H&E staining revealed that the treatment of either Vitamin D or Omega 3 did not cause histomorphological changes in the structure of the vena cava under normal conditions. The immunoexpression of inducible nitric oxide synthase was decreased and vascular endothelial growth factor was increased in the vena cava of rats with the combined treatment of Vitamin D and Omega 3. Conclusion: In conclusion, combined supplements of Vitamin D and Omega 3 did not have harmful effects on the blood vessel however further studies should be performed to determine the beneficial effects of these supplements.

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