Logo Medical Science Monitor Basic Research

Call: 1.631.470.9640
Mon-Fri 10 am - 2 pm EST

Contact Us

Logo Medical Science Monitor Basic Research Logo Medical Science Monitor Basic Research Logo Medical Science Monitor Basic Research

13 November 2013 : Original article  

Leptin increases mitotic index and regeneration ratio in hepatectomized rats

Murat CilekarABCDEF, Onur UysalABCF, Cengiz BalBCDEF, Serkan TurelCDEF, Sezgin YılmazCDEF

DOI: 10.12659/MSMBR.889591

Med Sci Monit Basic Res 2013; 19:279-284

Abstract

BACKGROUND: The aim of this study was to evaluate the potential effect of intraperitoneal administration of leptin on the hepatic regeneration and the mitotic index.

MATERIAL AND METHODS: 56 Sprague-Dawley rats were divided into 7 groups each containing 8 rats. Group 1 was evaluated as the sham group and no surgical procedure was performed on animals. The rats in groups 2, 3, and 4 (named C24, C48, C72, respectively) were given intraperitoneal injection of 2 ml/kg normal saline 60 minutes before the surgical procedure consisting of laparotomy and 70% hepatectomy. These groups were used as controls at 24, 48, and 72 hours. The rats in groups 5, 6, and 7 (named L24, L48, and L72, respectively) were given intraperitoneal injection of 20 µg/kg doses of recombinant mouse leptin 60 minutes before the same surgical procedure. These groups were evaluated as the experiment groups at 24, 48, and 72 hours. Blood samples were collected for aspartate aminotransferase (AST) and alanine aminotransferase (ALT) and the remaining tissue samples were obtained for liver histopathology, regeneration rate, and mitotic index (MI). The weights of the remaining livers were also noted.

RESULTS: The values of AST and ALT were higher in the groups that were administered leptin and they had significantly higher mitotic index than the other groups. Leptin also significantly increased the regeneration ratio as compared to the control group. The weights of the remaining livers were also higher in the leptin groups.

CONCLUSIONS: Intraperitoneal administration of leptin was observed to increase liver regeneration and mitotic rate in 70% hepatectomized rats.

Keywords: Alanine Transaminase - metabolism, Aspartate Aminotransferases - metabolism, Hepatectomy, Injections, Intraperitoneal, Leptin - pharmacology, Liver - surgery, Liver Regeneration - drug effects, Mitotic Index, Organ Size - drug effects

Add Comment 0 Comments

In Press

Clinical Research  

Questionnaire-Based Study of 392 Women in Abbottabad, Pakistan, to Evaluate the Types of Cosmetic Products ...

Med Sci Monit Basic Res In Press; DOI:  

Most Viewed Current Articles

15 Jun 2022 : Clinical Research  

Evaluation of Apical Leakage After Root Canal Obturation with Glass Ionomer, Resin, and Zinc Oxide Eugenol ...

DOI :10.12659/MSMBR.936675

Med Sci Monit Basic Res 2022; 28:e936675

07 Jul 2022 : Laboratory Research  

Cytotoxicity, Apoptosis, Migration Inhibition, and Autophagy-Induced by Crude Ricin from Ricinus communis S...

DOI :10.12659/MSMBR.936683

Med Sci Monit Basic Res 2022; 28:e936683

01 Jun 2022 : Laboratory Research  

Comparison of Sealing Abilities Among Zinc Oxide Eugenol Root-Canal Filling Cement, Antibacterial Biocerami...

DOI :10.12659/MSMBR.936319

Med Sci Monit Basic Res 2022; 28:e936319

17 Jan 2022 : Clinical Research  

Anodal Transcranial Direct Current Stimulation (tDCS) Over the Primary Motor Cortex (M1) Enhances Motor Res...

DOI :10.12659/MSMBR.934180

Med Sci Monit Basic Res 2022; 28:e934180

Your Privacy

We use cookies to ensure the functionality of our website, to personalize content and advertising, to provide social media features, and to analyze our traffic. If you allow us to do so, we also inform our social media, advertising and analysis partners about your use of our website, You can decise for yourself which categories you you want to deny or allow. Please note that based on your settings not all functionalities of the site are available. View our privacy policy.

Medical Science Monitor Basic Research eISSN: 2325-4416
Medical Science Monitor Basic Research eISSN: 2325-4416