PMID- 9262174 OWN - NLM STAT- MEDLINE DCOM- 19971001 LR - 20190614 IS - 0006-8993 (Print) IS - 0006-8993 (Linking) VI - 762 IP - 1-2 DP - 1997 Jul 11 TI - Beneficial effects of TDN-345, a novel Ca2+ antagonist, on ischemic brain injury and cerebral glucose metabolism in experimental animal models with cerebrovascular lesions. PG - 203-10 AB - The effects of TDN-345 on mortality and ischemic neurological deficit following transient global cerebral ischemia in Mongolian gerbils and also the rate of local cerebral glucose utilization (LCGU) in stroke-prone spontaneously hypertensive rats (SHRSP) with cerebrovascular lesions were investigated. In Mongolian gerbils, ischemia was produced by clamping the bilateral common carotid arteries for 15 min. TDN-345 (0.1-1.0 mg/kg) dose-dependently decreased the mortality and ischemic neurological deficit score when administered orally twice, 60 min before ischemia and 90 min after recirculation. Additionally, TDN-345 (0.2 or 1.0 mg/kg, p.o. once daily for 3 weeks after the onset of stroke) decreased the mortality and recurrence of stroke in SHRSP. To determine the site of action of TDN-345 in the brain, the rate of LCGU in various brain regions in SHRSP with stroke was examined using a [14C]2-deoxy-D-glucose method. The rate of LCGU decreased significantly in all the brain regions in SHRSP with stroke compared with Wistar-Kyoto (WKY) control rats, whereas the reduction in the rate of LCGU in SHRSP with stroke was prevented by TDN-345 treatment, especially in the sensorimotor cortex and locus coeruleus. These results suggest that TDN-345 has therapeutic efficacy in the treatment of cerebrovascular disease. FAU - Nakayama, T AU - Nakayama T AD - Pharmaceutical Research Division, Takeda Chemical Industries, Ltd., Yodogawa-ku, Osaka, Japan. Nakayama_Takahiro@takeda.co.jp FAU - Nagisa, Y AU - Nagisa Y FAU - Imamoto, T AU - Imamoto T FAU - Nagai, Y AU - Nagai Y LA - eng PT - Journal Article PL - Netherlands TA - Brain Res JT - Brain research JID - 0045503 RN - 0 (Calcium Channel Blockers) RN - 0 (Neuroprotective Agents) RN - 0 (Spiro Compounds) RN - 0 (TDN 345) RN - IY9XDZ35W2 (Glucose) SB - IM MH - Animals MH - Brain/*blood supply/metabolism MH - Brain Ischemia/*drug therapy/metabolism MH - Calcium Channel Blockers/*pharmacology MH - Cerebrovascular Disorders/drug therapy/metabolism MH - Disease Models, Animal MH - Dose-Response Relationship, Drug MH - Gerbillinae MH - Glucose/*metabolism MH - Male MH - Neuroprotective Agents/pharmacology MH - Rats MH - Rats, Inbred SHR MH - Rats, Inbred WKY MH - Reperfusion Injury/*drug therapy/metabolism MH - Spiro Compounds/chemistry/*pharmacology EDAT- 1997/07/11 00:00 MHDA- 1997/07/11 00:01 CRDT- 1997/07/11 00:00 PHST- 1997/07/11 00:00 [pubmed] PHST- 1997/07/11 00:01 [medline] PHST- 1997/07/11 00:00 [entrez] AID - S0006-8993(97)00388-0 [pii] AID - 10.1016/s0006-8993(97)00388-0 [doi] PST - ppublish SO - Brain Res. 1997 Jul 11;762(1-2):203-10. doi: 10.1016/s0006-8993(97)00388-0.