Binge Alcohol Is More Injurious to Liver in Female than in Male Rats: Histopathological, Pharmacologic, and Epigenetic Profiles
| Autor: | Shivendra D. Shukla, Jacob D. Franke, Xuanyou Liu, Ronald J. Korthuis, Ricardo J. Restrepo, David A. Ford, Robert W. Lim, Annayya R. Aroor |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
0301 basic medicine
Male medicine.medical_specialty Diacylglycerol Kinase Transcription Genetic MAP Kinase Signaling System Alcohol Glycerophospholipids CREB Toxicology Binge Drinking Epigenesis Genetic Rats Sprague-Dawley 03 medical and health sciences chemistry.chemical_compound 0302 clinical medicine Sex Factors In vivo Internal medicine Medicine Animals Protein kinase A Receptor Pharmacology Liver injury biology Ethanol business.industry Kinase Cytochrome P-450 CYP2E1 medicine.disease Rats 030104 developmental biology Endocrinology chemistry Liver biology.protein Molecular Medicine Phosphatidylethanol Female business 030217 neurology & neurosurgery |
| Zdroj: | J Pharmacol Exp Ther |
| Popis: | Binge alcohol consumption is a health problem, but differences between the sexes remain poorly defined. We have examined the in vivo effects of three acute, repeat binge alcohol administration on the liver in male and female rats. Sprague-Dawley rats were gavaged with alcohol (5 g/kg body weight) three times at 12-hour intervals. Blood and liver tissues were collected 4 hours after the last binge ethanol. Subsequently, several variables were analyzed. Compared with male rats, females had higher levels of blood alcohol, alanine aminotransferase, and triglycerides. Liver histology showed increased lipid vesicles that were larger in females. Protein levels of liver cytochrome P4502E1 were higher in the liver of females than in the liver of males after binge. Hepatic phospho-extracellular signal-regulated kinase 1/2 and phosph-p38 mitogen-activated protein kinase levels were lower in females compared with males after binge alcohol, but no differences were found in the phospho-C-jun N-terminal kinase levels. Peroxisome proliferator-activated receptor γ-coactivator 1α and cyclic AMP response element binding (CREB) protein levels increased more in female than in male livers; however, increases in phospho-CREB levels were lower in females. Remarkably, c-fos was reduced substantially in the livers of females, but no differences in c-myc protein were found. Binge ethanol caused elevation in acetylated (H3AcK9) and phosphoacetylated (H3AcK9PS10) histone H3 in both sexes but without any difference. Binge alcohol caused differential alterations in the levels of various species of phosphatidylethanol and a larger increase in the diacylglycerol kinase-α protein levels in the liver of female rats compared with male rats. These data demonstrate, for the first time, similarities and differences in the sex-specific responses to repeat binge alcohol leading to an increased susceptibility of female rats to have liver injury in vivo. SIGNIFICANCE STATEMENT: This study examines the molecular responses of male and female rat livers to acute binge alcohol in vivo and demonstrates significant differences in the susceptibility between sexes. |
| Databáze: | OpenAIRE |
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