Brain cell apoptosis and enhancement of nervous excitability in pregnant rats with high plasma levels of homocysteine.

Abstract:

:Hyperhomocysteinemia is an important risk factor for preeclampsia-eclampsia. This study established a pregnant rat model of hyperhomocysteinemia, in which blood plasma homocysteine concentrations were twice or three times greater than that of normal pregnant rats. TUNEL revealed an increase in the number of apoptotic cells in the frontal cortex of pregnant rats with hyperhomocysteinemia. In addition, immunohistochemical staining detected activated nuclear factor-κB-positve cells in the frontal cortex. Reverse transcription-PCR detected that mRNA expression of the anti-apoptotic gene bcl-2 diminished in the frontal cortex. In situ hybridization and western blotting revealed that N-methyl-D-aspartate receptor 1 mRNA and protein expression was upregulated in the frontal cortex and hippocampus. These results indicate that hyperhomocysteinemia can induce brain cell apoptosis, increase nerve excitability, and promote the occurrence of preeclampsia in pregnant rats.

journal_name

Neural Regen Res

authors

Wang J,Ge J,Yang L,Zhang H,Li X,Xue D

doi

10.3969/j.issn.1673-5374.2012.028.005

subject

Has Abstract

pub_date

2012-10-05 00:00:00

pages

2199-205

issue

28

eissn

1673-5374

issn

1876-7958

pii

NRR-7-2199

journal_volume

7

pub_type

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