Investigation of Regeneration Capacity in Rat Liver After Hepatic Resection

Abstract

The liver is the largest gland of the body that secretes both endocrine and exocrine secretions and plays a major role in the regulation of metabolic functions. Numerous factors such as drugs, chemicals, accidents, alcohol, surgical procedures can cause damage to the liver tissue. In this study, we aimed to determine the regeneration capacity of liver tissue in order to recover the mass loss after hepatic resection. In our experiment 21 Wistar albino male rats were used. All experimental groups applied midline incision with laparotomy for resection of liver. At the end of 1 and 7th days, liver tissue removed for light microscopic analysis. The rats were divided three groups: Control, group 1: hepatectomy one day after liver resection, group 2: hepatectomy seven days after liver resection. The tissue of all experimental groups were showed some histopatological changes such as sinuzoidal dilatation, vacuolization in the hepatocytes. These histopathological differentiation was found to be severe in group II compared to other groups. At the end of the 7th day, it was observed that the regeneration increased significantly, and the mitotic index value reached almost the maximum level in the second group. It was observed that the mitotic index value gradually decreased in group I and reached values close to the control group.

Keywords

• Hepatectomy
• Regeneration
• Liver
• Mitosis

Investigation of Regeneration Capacity in Rat Liver After Hepatic Resection

Öz

The liver is the largest gland of the body that secretes both endocrine and exocrine secretions and plays a major role in the regulation of metabolic functions. Numerous factors such as drugs, chemicals, accidents, alcohol, surgical procedures can cause damage to the liver tissue. In this study, we aimed to determine the regeneration capacity of liver tissue in order to recover the mass loss after hepatic resection. In our experiment 21 Wistar albino male rats were used. All experimental groups applied midline incision with laparotomy for resection of liver. At the end of 1 and 7th days, liver tissue removed for light microscopic analysis. The rats were divided three groups: Control, group 1: hepatectomy one day after liver resection, group 2: hepatectomy seven days after liver resection. The tissue of all experimental groups were showed some histopatological changes such as sinuzoidal dilatation, vacuolization in the hepatocytes. These histopathological differentiation was found to be severe in group II compared to other groups. At the end of the 7th day, it was observed that the regeneration increased significantly, and the mitotic index value reached almost the maximum level in the second group. It was observed that the mitotic index value gradually decreased in group I and reached values close to the control group.

Anahtar Kelimeler

• Hepatectomy
• Regeneration
• Liver
• Mitosis

References

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