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Puslapis 1 nuo 23 rezultatus
Cannabinoids reduce fertility of sea urchin sperm.
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Cannabinoids are potent pharmacological substances derived from marihuana. The effects of delta 9-tetrahydrocannabinol (THC), cannabinol (CBN), and cannabidiol (CBD) on fertilization in the sea urchin Strongylocentrotus purpuratus were investigated. Insemination of THC-treated eggs (5-400 microM)
Cannabis hyperemesis syndrome under recognised across the Irish Sea!
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Inhibition of sea urchin fertilization by fatty acid ethanolamides and cannabinoids.
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The influence of saturated and unsaturated fatty acid ethanolamides as well as delta9-tetrahydrocannabinol (delta9-THC), WIN 55,212-2 and cannabinoid CB1 receptor antagonist SR 141716 on sea urchin fertilization was studied. The ethanolamides of arachidonic, oleic and linoleic acids but not
Cannabinoids inhibit fertilization in sea urchins by reducing the fertilizing capacity of sperm.
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Delta-9-tetrahydrocannabinol (THC), cannabidiol (CBD), and cannabinol (CBN) inhibit fertilization in the sea urchin Strongylocentrotus purpuratus by reducing the fertilizing capacity of the sperm. Sperm fertility depends upon their motility, and their capacity to undergo the acrosome reaction upon
Evidence for a cannabinoid receptor in sea urchin sperm and its role in blockade of the acrosome reaction.
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Delta-9-tetrahydrocannabinol ((-)delta 9 THC), the primary psychoactive cannabinoid in marihuana, reduces the fertilizing capacity of sea urchin sperm by blocking the acrosome reaction that normally is stimulated by a specific ligand in the egg's jelly coat. The bicyclic synthetic cannabinoid
Anandamide (arachidonylethanolamide), a brain cannabinoid receptor agonist, reduces sperm fertilizing capacity in sea urchins by inhibiting the acrosome reaction.
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Anandamide (arachidonylethanolamide) is an endogenous cannabinoid receptor agonist in mammalian brain. Sea urchin sperm contain a high-affinity cannabinoid receptor similar to the cannabinoid receptor in mammalian brain. (-)-delta 9-Tetrahydrocannabinol (THC), the primary psychoactive cannabinoid in
Reduction of the fertilizing capacity of sea urchin sperm by cannabinoids derived from marihuana. I. Inhibition of the acrosome reaction induced by egg jelly.
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delta 9-Tetrahydrocannabinol (THC) and two other major cannabinoids derived from marihuana--cannabidiol (CBD) and cannabinol (CBN)--inhibit fertilization in the sea urchin Strongylocentrotus purpuratus by reducing the fertilizing capacity of sperm (Schuel et al., 1987). Sperm fertility depends on
Reduction of the fertilizing capacity of sea urchin sperm by cannabinoids derived from marihuana. II. Ultrastructural changes associated with inhibition of the acrosome reaction.
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Pretreatment of Strongylocentrotus purpuratus sperm with delta 9-tetrahydrocannabinol (THC) prevents the triggering of the acrosome reaction by egg jelly. Examination of THC-treated sperm by transmission electron microscopy reveals that the membrane fusion reaction between the sperm plasma membrane
Reduction of the fertilizing capacity of sea urchin sperm by cannabinoids derived from marihuana. III. Activation of phospholipase A2 in sperm homogenate by delta 9-tetrahydrocannabinol.
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Inhibition of the egg jelly induced acrosome reaction by delta 9-tetrahydrocannabinol (THC) is associated with the localized disruption of the nuclear envelope and the formation of lipid deposits in sea urchin sperm. This suggests that THC may activate phospholipase(s) within the sperm. We now
Amyloid precursor protein 96-110 and beta-amyloid 1-42 elicit developmental anomalies in sea urchin embryos and larvae that are alleviated by neurotransmitter analogs for acetylcholine, serotonin and cannabinoids.
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Amyloid precursor protein (APP) is overexpressed in the developing brain and portions of its extracellular domain, especially amino acid residues 96-110, play an important role in neurite outgrowth and neural cell differentiation. In the current study, we evaluated the developmental abnormalities
Staphylococcal enterotoxin induces emesis through increasing serotonin release in intestine and it is downregulated by cannabinoid receptor 1.
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Staphylococcal enterotoxins (SEs) produced by Staphylococcus aureus are the most recognizable bacterial superantigenic toxins causing food poisoning in humans throughout the world. However, it remains unclear how SEs induce emesis and its emetic signal pathway. We investigated a mechanism of
Upregulation of cannabinoid receptor-1 and fibrotic activation of mouse hepatic stellate cells during Schistosoma J. infection: role of NADPH oxidase.
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The endocannabinoid system (CS) has been implicated in the development of hepatic fibrosis such as schistosomiasis-associated liver fibrosis (SSLF). However, the mechanisms mediating the action of the CS in hepatic fibrosis are unclear. The present study hypothesized that Schistosoma J. infection
Editorial: Causal, Predispositional, or Correlate? Group Differences in Cognitive Control-Related Brain Function in Cannabis-Using Youth Raise New Questions.
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Increasingly permissive attitudes and laws surrounding cannabis have been accompanied by more prevalent use and increased perceptions of its safety.1 However, in stark contrast to this sea-change, remarkably little is known about the potential consequences and etiology of cannabis
Illicit traffic and abuse of cannabis in Canada.
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In 1984 cannabis derivatives, in particular marijuana, hashish and liquid hashish, continued to be the most readily available drugs of abuse in Canada. Marijuana originating in Colombia decreased on the illicit marijuana market in Canada from an estimated 45 per cent in 1983 to 30 per cent in 1984,
Regulatory and Legislative Disparities With Cannabis Present Challenges to P&T Committees and Health Care Providers.
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Increased cannabis use has brought about a sea change in policy and attitudes toward regulation, and a multitude of rules that vary widely between states. The disparity has stymied any effective response to the problems surrounding access to cannabis products for those in need. Health care providers
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