The Toxic Effect of Bilirubin on Different Types of Neurons of Rat in Primary Culture
- VernacularTitle:胆红素对原代培养不同类型大鼠神经元的毒性作用
- Author:
Xiaoyu LI
;
Suizhen LIN
;
Ying OUYANG
- Publication Type:Journal Article
- Keywords:
Bilirubin;
Neurons;
Rats;
Toxicity tests
- From:
Chinese Journal of Perinatal Medicine
1998;0(01):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate cytotoxicity and its mechanism of bilirubin on different types of neurons of rat in primary culture. Methods Toxic effect of bilirubin on primary cultured neurons (at cerebellar oranule hippocampal and cortical neurons) was observed. Ncuron survival was detected by fluorescei diacetate (FDA) staining. Measurement of fluorescent intensity of intracellular dilirudin were performed by microspectroflurimetry imaging system. Results Biliruin induced cytotoxicity to different type neurons in a dose-dependent manner. Exposed at 8d to different concentrations of bilirubin (4.3 ?mol/L、8.6 ?mol/L and 17.1 ?mol/L); cerebellar gtanule neuron survival werc (50.1?3.1)%,(18.5?2.3)%, (2.0?2.4)%, cortical neuron survival were (90.7?7.8)%, (85.3?5.3)%,(74.5?2.4)%, and hippocampal neuron survival were (75?6)%, (62?5)%, (49?5)% respectively. The toxic effect of bilirubin on ccrebellar granule neuron was significantly higher than that on hippocampal and cortical neurons. The fluorescent intensity of bilirubin in gra- nule, hippocampal and cortical neurons were 33.4?2.3、10.7?3.0、21.9?4.3 respectively three hours after addition of bilirubin to the medium. Significantly higher bilirubin concentration was found in granule neurons than that in hippocampal and cortical neurons (P
