Now showing items 61-70 of 392
Increase in delta, but not mu, receptors in MSG-treated rats
(Elsevier, 1982-09)
Neonatal treatment of rats with Monosodium Glutamate (MSG) has been demonstrated to destroy cell bodies of neurons in the arcuate nucleus including the brain beta-endorphin (B-END) system. The effects on opiate receptors ...
Rapid expression of novel proteins in goldfish retina following optic nerve crush
(Elsevier, 1986-08-14)
SummaryPolyadenylated messenger RNA was isolated from goldfish retinas at various times following unilateral crush of the optic nerve. RNA was translated in a cell-free system and product proteins analyzed by two-dimensional ...
The effect of gentamicin on calcium uptake by renal mitochondria
(Elsevier, 1982-06-28)
The effect of the nephrotoxic aminoglycoside antibiotic, gentamicin, on calcium uptake by renal cortical mitochondria was assessed in vitro. Gentamicin was found to be a competitive inhibitor of mitochondrial Ca++ uptake. ...
Environmentally controlled phenotypic plasticity of morphology and polypeptide expression in two populations of Daphnia pulex (Crustacea: cladocera)
(Springer-Verlag, 1984-08)
Two local Daphnia pulex populations which are subject to different types of seasonally varying predation pressures were studied. Individuals from both populations were raised in laboratory environments which simulated ...
Exposure to fluctuating salinity enhances free amino acid accumulation in Tigriopus californicus (Copepoda)
(Springer-Verlag, 1988-01)
Intracellular concentrations of free amino acids (FAA) in the intertidal copepod Tigriopus californicus increase in response to hyperosmotic stress and decrease in response to hypo-osmotic stress. The purpose of this study ...
Experimental analysis of movements by prairie rattlesnakes, Crotalus viridis , during hibernation
(Springer-Verlag, 1981-10)
Prairie rattlesnakes from Colorado, USA, were subjected to two thermal treatments during hibernation. The control treatment was carried out in a surrogate den in St. Louis, MO, USA and followed the normal seasonal thermal ...
Search mechanism of a stream grazer in patchy environments: the role of food abundance
(Springer-Verlag, 1984-05)
The search behavior of the grazing stream insect Baetis tricaudatus (Ephemeroptera: Baetidae) was examined in field and laboratory experiments. Regardless of food abundance in experimental habitats, nymphs spent significantly ...
The structure of crystalline and membrane-bound gramicidin A by vibrational analysis
(Elsevier, 1984-12-28)
The results of normal mode calculations on the [beta]4.4, [beta]6.3, [up arrow, down arrow][beta]5.6, and [up arrow, down arrow]][beta]7.2 structures of gramicidin A are compared with infrared and Raman spectra of crystalline ...
Regulation of human argininosuccinate synthetase gene: Induction by positive-acting nuclear mechanism in canavanine-resistant cell variants
(Kluwer Academic Publishers-Plenum Publishers; Plenum Publishing Corporation ; Springer Science+Business Media, 1989-03)
Nonhepatic human cell variants resistant to the arginine analog, canavanine, express argininosuccinate synthetase (AS) mRNA at levels 200-fold higher than parental cells without amplification of AS gene sequences. In this ...
Differential activation of human skin cells by platelet activating factor: Stimulation of phosphoinositide turnover and arachidonic acid mobilization in keratinocytes but not in fibroblasts
(Elsevier, 1989-09-29)
Treatment of cultured adult human keratinocytes with platelet activating factor (PAF) resulted in a rapid, dose dependent accumulation of inositol phosphates. Inositol trisphosphate (IP3), inositol bisphosphate (IP2) and ...