Alternation of blood pressure and behavioral performance in rat offspring following maternal inflammation during pregnancy
- VernacularTitle:孕期母体炎症刺激对子代大鼠血压及学习记忆能力的影响
- Author:
Liyun HAO
;
Xiaohui LI
- Publication Type:Journal Article
- Keywords:
inflammation;
hypertension;
behavior
- From:Journal of Third Military Medical University
2003;0(10):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To explore the effect of prenatal inflammation on rat offspring's blood pressure and behavioral performance.Methods Twenty-four time-mated Sprague-Dawley(SD)rats were randomly divided into three groups,i.e.control,zymosan and LPS.On their gestation days 8,10,12,the pregnant rats received i.p.injections of sterile saline,0.79 mg/kg zymosan or 0.79 mg/kg LPS respectively.When the offspring were sixty weeks old,eight pups were chosen randomly for the later study.Their serum TNF-? level was detected by ELISA using tail blood,arterial blood pressure was measured by tail-cuff method,and their behavioral performance was detected in Morris water maze test.At the end of the experiment,the brains were rapidly taken from the sacrificed offspring,cut into sections and stained with H&E method to investigate the structural changes of hippocampus.Results Compared with control group,all offspring from the inflammation groups showed increased serum level of TNF-?,increased systemic arterial blood pressure,long latency in finding the safe platform and decreased number of neurons in CA1 region of hippocampus.Conclusion Prenatal exposure to LPS or zymosan results in hypertension and disturbance of learning and memory.
