Now showing items 41-50 of 336
Inactivation of Escherichia coli 2-amino-3-ketobutyrate CoA ligase by phenylglyoxal and identification of an active-site arginine peptide
(Elsevier, 1992-11-15)
Treatment of homogeneous preparations of 2-amino-3-ketobutyrate CoA ligase from Escherichia coli, a pyridoxal 5'-phosphate-dependent enzyme, with phenylglyoxal, 4-(oxyacetyl)phenoxyacetic acid, 2,3-butanedione, or ...
Selective effect of alcohol on cellular immune responses of lymphocytes from AIDS patients
(Elsevier, 1994)
In this study we examined the in vitro effects of alcohol on the proliferative responses of lymphocytes from healthy donors and AIDS patients to a recombinant fusion peptide, env-gag, corresponding to portions of the gp ...
Short-Term Adrenalectomy Increases Glucocorticoid and Mineralocorticoid Receptor mRNA in Selective Areas of the Developing Hippocampus
(Elsevier, 1993-10)
In the central nervous system, adrenal steroids bind to two different types of corticosteroid receptors: glucocorticoid (GR) or mineralocorticoid (MR). In vitro biochemical and autoradiographic techniques have been used ...
Reproduction numbers and thresholds in stochastic epidemic models I. Homogeneous populations
(Elsevier, 1991-12)
We compare threshold results for the deterministic and stochastic versions of the homogeneous SI model with recruitment, death due to the disease, a background death rate, and transmission rate [beta]cXY / N. If an infective ...
Physiological changes during the adaptation of hybridoma cells to low serum and serum-free media
(Wiley Subscription Services, Inc., A Wiley Company, 1991-01-05)
Two murine hybridoma cell lines (167.4G5.3 and S3H5/Γ2bA2) were adapted to grow in low-serum and serum-free media by a weaning procedure. The changes in cell growth, metabolic, and antibody production rates with adaptation ...
Activation by anti-CD3 of tumor-draining lymph node cells for specific adoptive immunotherapy
(Elsevier, 1991-05)
Lymph nodes draining progressive tumors contain tumor-sensitized but not functional preeffector T lymphocytes. These cells can acquire antitumor reactivity after stimulation with tumor cells and interleukin-2 (IL-2). We ...
Age-related difference in cardiac adaptation to chronic hypertension in rats, with and without nifedipine treatement
(Kluwer Academic Publishers; Springer Science+Business Media, 1999-08)
Three myosin isozymes, V1 (αα MHC = Myosin Heavy Chain gene), V2 (αβ MHC) and V3 (ββ MHC) that are identified in the cardiac ventricles of most mammals have been shown to shift to a V3 predominance pattern during cardiac ...
Direct optical resolution of vesamicol and a series of benzovesamicol analogues by high-performance liquid chromatography
(Elsevier, 1994-04-29)
The direct optical resolution of the vesicular acetylcholine uptake inhibitors vesamicol and benzovesamicol and nine benzovesamicol analogues were performed by HPLC on a commercially available cellulose tris(3,5-dimethylphenyl ...
Modulation of opioid signal transduction in SH-SY5Y neural cells by differentiating agents: Concurrent mu receptor upregulation and effector desensitization by phorbol ester
(Elsevier, 1994-02-21)
Long-term exposure of SH-SY5Y human neural cells to retinoic acid (RA) increased the binding of [3H]DAMGO and [3H]DPDPE by up to 3-fold compared to membranes of untreated cells. In contrast, incubation of the cells with ...