PMID- 11038802 OWN - NLM STAT- MEDLINE DCOM- 20001206 LR - 20061115 IS - 0376-2491 (Print) IS - 0376-2491 (Linking) VI - 78 IP - 8 DP - 1998 Aug TI - [Brain cell apoptosis after cerebral hypoxia-ischemia in neonatal rat]. PG - 567-9 AB - OBJECTIVE: To investigate action of apoptosis in mechanisms of neonatal hypoxia-ischemia (HIE). METHODS: Using HE staining, electronmicroscope, and terminal deoxynuleotidyl transferase-mediated dUTP nick end labeling (TUNEL) technique, we observed the histological features, time course and density of apoptotic cells and compared the ipsilateral hemisphere after permanent ischemia 1, 4, 18, 24, 40, 72 h, 7 days after 3 h hypoxia with that of sham-group. RESULTS: Neurons in the cortex, hippocampus, thalamus exhibited cells shrink, chromatin condensation, apoptosis bodys under microscope, as demonstrated by in situ labeling of DNA breaks. The peak for apoptosis was shown at 18 h in the cortex. CONCLUSION: In the HIE, apoptosis appears earlier than necrosis, and both of the different cell death forms may exist induced dose relativity. FAU - Jiang, L AU - Jiang L AD - Department of Pediatrics, Nanjing Railway Medical College. FAU - Tang, Y AU - Tang Y FAU - Huang, X AU - Huang X LA - chi PT - English Abstract PT - Journal Article PL - China TA - Zhonghua Yi Xue Za Zhi JT - Zhonghua yi xue za zhi JID - 7511141 SB - IM MH - Animals MH - Animals, Newborn MH - *Apoptosis MH - Brain/*pathology MH - Hypoxia-Ischemia, Brain/*pathology MH - Necrosis MH - Neurons/pathology MH - Random Allocation MH - Rats MH - Rats, Sprague-Dawley EDAT- 2000/10/20 11:00 MHDA- 2001/02/28 10:01 CRDT- 2000/10/20 11:00 PHST- 2000/10/20 11:00 [pubmed] PHST- 2001/02/28 10:01 [medline] PHST- 2000/10/20 11:00 [entrez] PST - ppublish SO - Zhonghua Yi Xue Za Zhi. 1998 Aug;78(8):567-9.