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  • Title: [Study on apoptosis and its related genes in pregnancy induced hypertension].
    Author: Li C, Hu Z, Cao L.
    Journal: Zhonghua Fu Chan Ke Za Zhi; 2000 Jun; 35(6):335-7. PubMed ID: 11776172.
    Abstract:
    OBJECTIVE: To investigate apoptosis and its related genes expression in serious pregnancy induced hypertension (SPIH). METHODS: 40 cases of normal term pregnancy(NTP) and 40 cases of SPIH were enrolled in this study. Apoptosis was detected using DNA in situ terminal deoxynucleotidyl transferas (TDT)-mediated deoxyuridine triphosphate (dUTP)-biotin nick ending labeling (TUNEL); bax and bcl-2 were detected by immunohistochemical staining (SP). RESULTS: In NTP group apoptosis index(AI) of cytotrophoblasts(CT) and syncytiophoblasts(ST) in placenta was (1.1 +/- 0.9)% and (41.8 +/- 1.5)%; bax positive rate was (1.0 +/- 0.9)% and (28.9 +/- 9.7)%; bcl-2 was (2.2 +/- 0.8)% and (22.9 +/- 0.7)% respectively; bax/bcl-2 was 0.7-1.7. In SPIH group, AI was (4.3 +/- 1.2)% and (45.3% +/- 1.4)%; bax was (2.2 +/- 0.8)% and (42.5 +/- 11.7)%; bcl-2 was (3.2 +/- 0.8)% and (23.3 +/- 7.8)%; bax/bcl-2 was 1.0-3.2. The difference between SPIH and NTP was significant respectively (P < 0.01); bax/bcl-2 was balance in NTP, while the balance was broken in SPIH. CONCLUSIONS: Apoptosis and its related genes expression are simultaneous. The balance and imbalance of apoptosis and bax/bcl-2 affect the structure and the function of placenta, and then may further affect the outcome of pregnancy.
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