alkaloid/stroke

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Pyrano[3,2-a]carbazole alkaloids as effective agents against ischemic stroke in vitro and in vivo.

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A series of pyrano[3,2-a]carbazole alkaloids were designed and synthesized as analogues of Claulansine F (Clau F, 10a) isolated from Clausena lansium. Some of compounds showed strong neuroprotective effects and were promising agents against ischemic stroke. Among these compounds, 7c was the most

Rapid identification and analysis of the active components of traditional Chinese medicine Xiaoxuming decoction for ischemic stroke treatment by integrating UPLC-Q-TOF/MS and RRLC-QTRAP MSn method.

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Xiaoxuming decoction (XXMD) is a key Chinese medicine prescription, which has been clinically used for stroke treatment for thousands of years in ancient China. The extracted active fraction of XXMD (AF-XXMD) contains almost pharmacological active components with anti-cerebral ischemic effects.

Is there a real treatment for stroke? Clinical and statistical comparison of different treatments in 300 patients.

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In the absence of universally accepted criteria for the medical treatment of stroke, we made a rigorously randomized comparative study of different treatments in 300 patients. One group of patients received only a general supportive treatment designed to ensure adequate supplies of water,

Effect of carpaine, a papaya alkaloid, on the circulatory function in the rat.

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Carpaine is one of the major components of alkaloid of papaya leaves. Circulatory effects of carpaine were studied in Wistar male rats weighing 314 +/- 13 g, under pentabarbital (30 mg/kg) anesthesia. Increasing dosages of carpaine from 0.5 mg/kg to 2.0 mg/kg resulted in progressive decrease in

Natural neuroprotective alkaloids from Stephania japonica (Thunb.) Miers.

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Modulating inflammatory responses after stroke can prevent brain injury and, therefore, improve neurological outcome. Stephania japonica (Thunb.) Miers is a Chinese folk medicine with the function of dispelling the "wind and blockage" in the human body according to the Chinese medicine

Behavioral effects of 2,3-dihydro- and oxoisoaporphine derivatives in post stroke-depressive like behavior in male BALB/c mice.

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In this study, antidepressant-like effects of intra-cerebroventricularly administration of oxoisoaporphine derivatives in post stroke-depressive like behavior were examined through despair swimming and tail suspension models. For this aim, acute ischemic stroke was induced by bilateral common

[Cerebrovascular accidents in relation to drug consumption or drug abuse].

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Many drugs may cause cerebral infarction or hemorrhage. The authors describe the epidemiology and the physiopathological aspects of stroke in patients using anticoagulant therapy, oral contraception or ergot alkaloids. Cerebrovascular complications are also noticed in abusers of cocaine or other

Migraine and Ischemic Stroke: Deciphering the Bidirectional Pathway.

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Migraine and stroke are common, disabling neurological conditions with several theories being proposed to explain this bidirectional relationship. Migraine is considered as a benign neurological disorder, but researchers revealed a connection among migraine and stroke, predominantly those having

Mechanical effects of liriodenine on the left ventricular-arterial coupling in Wistar rats: pressure-stroke volume analysis.

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1. In a recent in vivo study, liriodenine, an aporphine alkaloid, has been identified as a prominent anti-arrhythmic agent that can prevent rats' sudden deaths, even at the dose as low as 10(-7) g kg(-1). The aim of this study was to determine whether liriodenine at its effective anti-arrhythmic

The migraine-ischemic stroke connection: potential pathogenic mechanisms.

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Strong epidemiological evidence indicates that migraine, especially migraine with aura, is associated with increased risk of ischemic stroke. However, the precise mechanisms of such a relation are currently not fully elucidated and are still a matter of speculation. Migraine may directly cause an

Comparative pharmacokinetics and bioavailability of four alkaloids in different formulations from Corydalis decumbens.

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BACKGROUND Corydalis decumbens, a Traditional Chinese Medicine listed in Chinese Pharmacopoeia, is clinically used for the treatment of paralytic stroke, headache, rheumatic arthritis and sciatica in China. OBJECTIVE This study was aimed to compare the pharmacokinetics and bioavailability of

Steroidal Alkaloids from Veratrum nigrum Enhance Glucose Uptake in Skeletal Muscle Cells.

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Veratrum nigrum is recognized as a medicinal plant used for the treatment of hypertension, stroke, and excessive phlegm. Chemical investigation of the roots and rhizomes led to the isolation of five new steroidal alkaloids, jervine-3-yl formate (1), veramarine-3-yl formate (2),

Alkaloid profiling of crude and processed Veratrum nigrum L. through simultaneous determination of ten steroidal alkaloids by HPLC-ELSD.

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Veratrum nigrum L., a traditional Chinese herb, has been used for treatment of hypertension, blood-stroke, excessive phlegm, epilepsy, etc. Steroidal alkaloids were well-known as both bioactive and toxic constituents of Veratrum species, the toxicity of which the traditional processing procedure can

The potential of tetrandrine as a protective agent for ischemic stroke.

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Stroke is one of the leading causes of mortality, with a high incidence of severe morbidity in survivors. The treatment to minimize tissue injury after stroke is still unsatisfactory and it is mandatory to develop effective treatment strategies for stroke. The pathophysiology of ischemic stroke is

Structure and hypotensive activity relationships of tetrandrine derivatives in stroke-prone spontaneously hypertensive rats.

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1. Structure and hypotensive activity relationships of tetrandrine (TD), an alkaloid isolated from the Chinese herb Radix stephaniae tetrandrae and its derivatives were investigated in conscious stroke-prone spontaneously hypertensive rats (SHRSP). 2. Derivatives substituted at the 7-O position with

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