نتایج جستجو برای: 1 5 benzodiazepine
تعداد نتایج: 3374564 فیلتر نتایج به سال:
A single 5 min exposure to the elevated plus-maze test of anxiety renders animals insensitive to the anxiolytic effects of the benzodiazepines in this test. The purpose of the present experiments was to explore whether this phenomenon resulted from a change in the functional state of benzodiazepine receptors in the dorsal raphe nucleus. The benzodiazepine receptor agonist midazolam (0.5, 1, and...
Antibacteriophage antibiotics, RK-1441A and B, related to neothramycin were isolated from the culture broth of Streptomyces sp. and their structures were deduced from spectroscopic analyses. The structure of RK-1441A was 8,11-dihydroxy-3,7-dimethoxy-5-oxo-1H-pyrrolo[2,1-c:1,4]benzodiazepine. RK-1441B is a tautomeric mixture at C-3 of the structure, 3,8,11-trihydroxy-7-methoxy-5-oxo-1H-pyrrolo[2...
BACKGROUND Benzodiazepines are frequently prescribed to elderly patients' despite concerns about adverse effects leading to injurious falls. Previous studies have not investigated the extent to which patients with pre-existing risk factors for falls are prescribed benzodiazepines. The objective of this study is to assess if some of the risk factors for falls are associated with new benzodiazepi...
3-tert-Butyl-7-(5-methylisoxazol-3-yl)-2-(1-methyl-1H-1,2,4triazol-5-ylmethoxy)-pyrazolo[1,5-d][1,2,4]triazine (MRK-016) is a pyrazolotriazine with an affinity of between 0.8 and 1.5 nM for the benzodiazepine binding site of native rat brain and recombinant human 1-, 2-, 3-, and 5-containing GABAA receptors. It has inverse agonist efficacy selective for the 5 subtype, and this 5 inverse agonism...
We report a comparative study on the photodegradation of the widely used benzodiazepine psychoactive drug alprazolam (8-chloro-1-methyl-6-phenyl-4H-[1,2,4]triazolo[4,3-a][1,4]benzodiazepine, ALP) using direct photolysis, and titanium dioxide photocatalyzed reaction. Titanium dioxide photocatalysts were prepared as nanoparticles by acidic sol-gel methods, calcined at two different temperatures, ...
OBJECTIVE This study was designed to evaluate the impact of long-term benzodiazepine use on the subsequent risk of benign brain tumor (BBT) or malignant brain tumor (MBT) development. METHOD We used data from the National Health Insurance System of Taiwan. For the study cohort, we identified 62,186 patients who had been prescribed benzodiazepine for at least 2 months between January 1, 2000 a...
BACKGROUND Drug dependency may develop during long-term benzodiazepine use, indicated, for example, by dose escalation. The first benzodiazepine chosen may affect the risk of dose escalation. AIM To detect possible differences in benzodiazepine use between new users of diazepam and oxazepam over time. DESIGN AND SETTING This 5-year prescription database study included 19 747 new benzodiazep...
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