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تعداد نتایج: 1369187 فیلتر نتایج به سال:
Interactions between excitatory amino acids and opioids were examined by studying the ability of the noncompetitive N-methyl-D-aspartate (NMDA) receptor antagonist MK-801 to affect morphine catalepsy and lethality. MK-801 (0.3 mg/kg) reduced the ED50 for morphine-induced catalepsy from approximately 30 mg/kg to less than 10 mg/kg, and reduced the LD50 for morphine from approximately 100 mg/kg t...
The effects of benzyl-polyamines were studied at recombinant N-methyl-D-aspartate (NMDA) receptors expressed in Xenopus laevis oocytes. A number of mono-, di- and tri-benzyl polyamines, having benzyl substitutions on the terminal or central amino groups, inhibited responses of NR1/NR2 receptors in oocytes voltage-clamped at -70 mV. Among the most potent compounds was N1,N4, N8-tri-benzyl-spermi...
Alzheimer disease is a multifactorial pathology and the development of new multitarget neuroprotective drugs is promising and attractive. We synthesized a group of original compounds, which combine in one molecule γ-carboline fragment of dimebon and phenothiazine core of methylene blue (MB) linked by 1-oxo- and 2-hydroxypropylene spacers. Inhibitory activity of the conjugates toward acetylcholi...
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