کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9989566 | 1580760 | 2005 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Prenatal hypoxia-induced adaptation and neuroprotection that is inducible nitric oxide synthase-dependent
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علم عصب شناسی
عصب شناسی
پیش نمایش صفحه اول مقاله
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چکیده انگلیسی
The incidence of perinatal stroke is â¼0.025%. About two thirds of these patients develop long-lasting neurological deficits. Preconditioning-induced neuroprotection, a phenomenon in which application of a stimulus induces brain ischemic tolerance, is investigated to improve outcome after a perinatal stroke. We applied prenatal hypoxia to fetuses by exposing 22-day pregnant mother rats to 15% oxygen for 30 min and subjected newborns with or without this prenatal hypoxia to brain ischemia 48 h later. Newborns with the prenatal hypoxia had a lower mortality rate, less brain tissue and neuronal loss and fewer active caspase 3 (an indicator for cell apoptosis) positive brain cells than newborns with the brain ischemia only. This neuroprotection was abolished by an inhibitor of inducible nitric oxide synthase (iNOS). The expression of iNOS proteins but not endothelial and neuronal NOS proteins was increased by the prenatal hypoxia. Thus, the prenatal hypoxia-induced neuroprotection may be iNOS-dependent.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Neurobiology of Disease - Volume 20, Issue 3, December 2005, Pages 871-880
Journal: Neurobiology of Disease - Volume 20, Issue 3, December 2005, Pages 871-880
نویسندگان
Ping Zhao, Zhiyi Zuo,