نتایج جستجو برای: cytochalasin b
تعداد نتایج: 900076 فیلتر نتایج به سال:
1. Colchicine and vincristine only slightly inhibit the metabolism of glucose to CO(2) and lipids by isolated fat-cells. 2. Prolonged incubation with these agents causes no further inhibition. 3. Cytochalasin B, however, inhibits glucose metabolism to both CO(2) and lipids in fat-cells. 4. However, at a concentration that causes a strong inhibition of glucose metabolism cytochalasin B is withou...
The cytochalasins stimulate steroid secretion of Y-1 adrenal tumor cells two-to threefold. The order of potencies is cytochalasin E is greater than D is greater than B, but the maximum response is the the same and always less than with ACTH. Like that with ACTH, the stimulation has a rapid onset, is easily reversible, is inhibited by cucloheximide and aminoglutethimide, and occurs at a stage be...
Cytochalasin B, a metabolic product of several fungi, enhances up to 10-fold the sensitivity and reactivity of human leukocytes to antigen E or anti-IgE-mediated histamine release. The effect of cytochalasin B is a result of its action on the second, antigen-independent, stage of histamine release. These data suggest that normally, antigen-triggered histamine release is modulated by a cytochala...
In cynomolgus monkeys, intracameral infusion of 0.2 to 5.0 mug of cytochalasin B caused an increase in outflow facility, as measured by two-level constant pressure perfusion. Cytochalasin B had its full effect in eyes which had undergone surgical disinsertion of the ciliary muscle from the scleral spur, and were therefore insensitive to pilocarpine. The cytochalasin effect was apparent in less ...
The redistribution of melanin granules within dermal and epidermal melanocytes of the frog is responsible for changes in skin color . Surviving frog skin can be lightened and darkened by many different compounds (I). When the granules are dispersed into the branched processes of individual melanocytes, the skin appears dark . When melanin granules are aggregated in the perikaryon, the melanocyt...
The plasma membrane glucose transporter of Leishmania donovani, an obligate intracellular protozoan parasite of humans, was specifically labeled, identified, and biochemically characterized. Cytochalasin B, a known inhibitor of D-glucose transport in mammalian cells, but not cytochalasin E inhibited the transport of 2-deoxy-D-glucose in the extracellular promastigote form of this organism. Hydr...
BACKGROUND Celecoxib exerted analgesic effects (hypoalgesia) reversed by opioid receptor antagonists in a model of inflammatory pain. To analyze this celecoxib-induced hypoalgesia further, we assessed the effects of several disruptors of cytoskeletal components in our model of inflammation. METHODS Hyperalgesia to mechanical stimuli was induced in rat hind paws by intraplantar injection of ca...
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