Back to Search Start Over

Ethanol-induced apoptosis in vitro

Ethanol-induced apoptosis in vitro

Authors :
Manuela G Neuman
Claudio Tiribelli
Gady G. Katz
Ross G. Cameron
Neil H Shear
Neuman, Mg
Shear, Nh
Cameron, Rg
Katz, G
Tiribelli, Claudio
Publication Year :
1999

Abstract

OBJECTIVES: The aim is to study the apoptotic process in a human hepatocyte model for ethanol (EtOH)-induced apoptosis. DESIGN AND METHODS: Normal human primary hepatocytes (HPH) and Hep G2 cells were exposed to increasing EtOH. 6000 cells/ sample were analyzed by transmission electron microscopy. RESULTS: Apoptotic cells were observed (mmol/L EtOH): 40: 6 +/-0.5%, 60:13 +/- 2% (p < 0.05), 80: 26 +/- 1% (p < 0.001) (vs. control). Two consecutive doses of 80 mmol/L for 24 h each additionally increased apoptosis 55 +/- 3% (p < 0.0001 vs. control and p < 0.001 vs. single dose). In response to this exposure, there is a stronger apoptotic activity in HPH when compared to Hep G2 (p < 0.05). CONCLUSIONS: In vitro, EtOH-induced apoptosis is regulated by dose level and the frequency of exposure.

Details

Language :
English
Database :
OpenAIRE
Accession number :
edsair.doi.dedup.....c0179fbba79f17ea6f5ec01748957b2d