نتایج جستجو برای: 1b
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1-Adrenergic receptors (ARs) belong to the large Class I G protein-coupled receptor superfamily and comprise three subtypes ( 1A, 1B, and 1D). Previous work with heterologously expressed C-terminal green fluorescent protein (GFP)-tagged 1-ARs showed that 1Aand 1B-ARs localize to the plasma membrane, whereas 1D-ARs accumulate intracellularly. We recently showed that 1Dand 1B-ARs form heterodimer...
BACKGROUND Although animal models suggest that alcohol dependence (AD) is associated with elevations in the number of serotonin 1B receptors (5-HT(1B)R), 5-HT(1B)R levels have not been investigated in people with AD. The selective 5-HT(1B)R antagonist radioligand, [(11)C]P943, permits in vivo assessment of central 5-HT(1B)R binding potential (BP(ND)) with positron emission tomography. Because o...
Vasopressin V(1b) receptor is specifically expressed in the pituitary and mediates adrenocorticotropin release, thereby regulating stress responses via its corticotropin releasing factor-like action. In the present study we examined catecholamine release in response to two types of stress in mice lacking the V(1b) receptor gene (V(1b)R(-/-) mice) vs. wild-type mice. There were no significant di...
Refractory epilepsy is reportedly associated with an overexpression of ATP-binding cassette transporters such as P-glycoprotein (Pgp) and breast cancer resistance protein (Bcrp). In this study, we examined the contribution of Pgp and Bcrp to the brain distribution of 12 antiepileptic drugs (AEDs) in Mdr1a/1b(-/-) and Mdr1a/1b(-/-)/Bcrp(-/-) mice within a therapeutic concentration range. The blo...
Schroeder, Rebecca A., Charles Cai, and Paul C. Kuo. Endotoxin-mediated nitric oxide synthesis inhibits IL-1b gene transcription in ANA-1 murine macrophages. Am. J. Physiol. 277 (Cell Physiol. 46): C523–C530, 1999.—On the basis of previous work demonstrating nitric oxide (NO)mediated inhibition of nuclear factor-kB (NF-kB) DNA binding, we hypothesized that NO downregulates NF-kB-dependent inter...
We prepared monoclonal antibodies against penicillin-binding protein 1B (PBP 1B) of Escherichia coli to study the membrane topology, spatial organization, and enzyme activities of this protein. The majority of the antibodies derived with PBP 1B as the immunogen reacted against the carboxy terminus. To obtain monoclonal antibodies recognizing other epitopes, we used PBP 1B lacking the immunodomi...
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