vincamine/ischemia

Effects of various classes of drugs on complete ischemia (gasping) induced by decapitation and cyanide intoxication in mice were investigated. The average gasping duration in complete ischemia and survival time in potassium cyanide injection of control mice were 21.0 +/- 0.1 and 26.1 +/- 0.4 sec

After briefly evaluating the contraindications and indications of vasoactive and eumetabolic therapy of cerebral ischemia, the paper considers the main drugs at present in use in therapy of the syndrome induced by diffused cerebral arteriosclerosis. Among the drugs with a mainly vasoactive effect,

The alterations in global and regional cerebral blood flow (CBF) following i.v. application of 14,15-dihydro-14beta-hydroxy-[13alpha,16alpha]-eburnamenine-14-carbonic acid methylester (vincamine) were studied in 18 patients suffering from acute or subchronic cerebral ischemia. CBF measurements were

Changes in the maximal rate of some cerebral enzymatic activities related to energy transduction (lactate dehydrogenase; citrate synthase and malate dehydrogenase; total NADH-cytochrome c reductase and cytochrome oxidase) as well as both glutamate dehydrogenase and acetylcholine esterase were

Changes in the maximal rate of some enzymatic activities related to energy transduction (lactate dehydrogenase; citrate synthetase and malate dehydrogenase; total NADH-cytochrome c reductase and cytochrome oxidase) and others such as glutamate dehydrogenase and acetylcholine esterase were assayed

The effects of a new eburnamenine derivative (3 beta,14 alpha, 16 alpha)-(+/-)-14,15-dihydro-20,21-dinoreburnamenin-14-ol (vindeburnol, RU 24722) on EEG, on brain energy metabolism and on local cerebral blood flow (LCBF) and in different experimental models of cerebral insufficiency were compared

The influence of a new eburnamenine derivative RU 24722 [(3 beta, 14 alpha, 16 alpha)-(+/-)-14,15-dihydro-20,21-dinoreburnamenin -14-ol] on post-ischemic EEG recovery was studied in N2O anesthetized rats subjected to 1 min of global-compression cerebral ischemia. RU 24722 was compared with

Inflammatory responses play crucial roles in cerebral ischemia/reperfusion injury. Toll-like receptor 4 (TLR4) is an important mediator of the neuroinflammatory response to cerebral ischemia/reperfusion injury. Vinpocetine is a derivative of the alkaloid vincamine and exerts an anti-inflammatory

This study aims at formulating solid lipid nanoparticles (SLNs) of Vinpocetine (VIN) to be used as a brain targeted sustained drug-delivery system. VIN is a derivative of vincamine alkaloid, used for chronic cerebral vascular ischemia. However, it suffers from low bioavailability and short

The effects of twelve substances on local cerebral blood flow (LCBF) were studied in the normocapnic and hypercapnic conscious rabbit. In normocapnia, an increase in LCBF was observed after naftidrofuryl (NAF), cinnarizine (CI), viquidil (VI) and heptaminol acefyllinate (HA). The LCBF was only

Cerebral aging is associated with psychological and intellectual modifications related to haemodynamic, metabolic disturbances which are often reflected by electroencephalographic alteration (frequency variations, alpha dominant frequency changes). Different tests, based on visual and automatic

Glycolytic substrates and metabolites (glycogen, glucose, glucose-6-phosphate, pyruvate, lactate), tricarboxylic acid cycle intermediates (citrate, alpha-ketoglutarate, succinate, fumarate, malate), related amino acids (glutamate, glutamine, alanine, gamma-aminobutyrate) and energy mediators (ATP,

Mongolian Gerbils (Meriones Unguiculatus) are characterized by frequent anomalies of the circle of Willis. Their cerebral vessels lack arterial communication between the cerebral and vertebral system and they present an experimental model for cerebral ischemia. Among drugs which interfere with

The cerebroprotective effect of nicergoline was studied using the following experimental methods: hypobaric and anoxic hypoxia in mice, complete ischemia by decapitation in mice, incomplete ischemia by bilateral carotid ligation in rats, hemic hypoxia in rats and asphyxic anoxia in cats. Xanthinol