1989
DOI: 10.1016/0022-510x(89)90146-9
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Effect of barbiturate treatment on post-ischemic protein biosynthesis in gerbil brain

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Cited by 39 publications
(11 citation statements)
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“…After such events, manipulations that decrease cellular metabolism immediately after ischemia by barbiturate (Kirino et al, 1985) or by lowering brain temperature (Busto et al, 1987) can reduce the amount of DND. Little is known regarding the subsequent maturation stage, but some information about postischemic protein synthesis is now accumulating (Thilman et al, 1986;Xie et al, 1989). For example, it has been shown that amino acid incorporation is inhibited transiently but recovers in the hippocampus after ischemia except in the vulnerable CA1 neurons.…”
Section: Discussionmentioning
confidence: 99%
“…After such events, manipulations that decrease cellular metabolism immediately after ischemia by barbiturate (Kirino et al, 1985) or by lowering brain temperature (Busto et al, 1987) can reduce the amount of DND. Little is known regarding the subsequent maturation stage, but some information about postischemic protein synthesis is now accumulating (Thilman et al, 1986;Xie et al, 1989). For example, it has been shown that amino acid incorporation is inhibited transiently but recovers in the hippocampus after ischemia except in the vulnerable CA1 neurons.…”
Section: Discussionmentioning
confidence: 99%
“…This is attributed to a loss of tritium-labeled water in the dried cryostat sections due to metabolism of the tritium-labeled amino acids. 13 Two hours after 5 minutes of ischemia fractional protein radioactivity in the untreated animals was severely depressed throughout the brain with the exception of the dentate gyms, which at this time was only slightly affected ( Figure 1). After 2 days of recirculation untreated gerbils exhibited substantial recovery in the parietooccipital cortex and CA3 sector (90% of control), partial recovery in the thalamus (78% of control), and only minor recovery in the selectively vulnerable CAl sector of the hippocampus (45% of control).…”
Section: Resultsmentioning
confidence: 99%
“…13 This difference may be due to the different pharmacological profiles of these drugs. The organic calcium antagonists nimodipine and flunarizine act primarily on voltage-sensitive channels, that is, nimodipine acts on the L-type 31 -32 and flunarizine on the T-type 33 channel.…”
Section: Discussionmentioning
confidence: 99%
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“…Sie erholt sich aber in den Hirnstrukturen, die unversehrt bleiben, innerhalb weniger Stunden wieder auf Ausgangswerte, während sie in den vulnerablen Strukturen, insbesondere im Hippokampusa real, inhibiert bleibt (Übersicht bei: 11). Weiterhin wird der neuroprotektive Effekt verschiedener Therapiere gime, wie eine moderate Hypothermie oder intravenöse Gabe vom Barbituraten, durch eine verbesserte Erholung der PS nach Ischämie widergespiegelt [28,31] Wir haben uns deshalb bei den vorliegenden Experi menten für ein in vitro System, nämlich ein hippokampalcs Gewebeschnittmodell, entschieden [7], Nach Applika tion dieses Gewebeschnittmodclls an das Meerschwein chen wurde die PS in hippokampalen Gewebescheiben von unreifen (E40) und reifen (E60) Mcerschwcinchenfeten sowie von erwachsenen Tieren nach in vitro Ischämie gemessen werden. Weiterhin haben wir bei diesen Versu chen die Konzentration von Adeninnukleotiden in den Gewebescheiben während und nach der in vitro Ischämie bestimmt, um zu klären, ob ontogenetischc Unterschiede in der Inhibition der PS nach Ischämie durch eine unter schiedliche Beeinträchtigung des Energiestoffwechsels verursacht werden.…”
Section: Introductionunclassified