Now showing items 1-10 of 69
Inhibition of cellular ATP-hydrolyzing activity by tricyclic antidepressants and phenothiazine tranquilizers
(Elsevier, 1975-05-01)
In a variety of cellular and subcellular preparations, total ATP-hydrolyzing activity was potently inhibited by tricyclic antidepressants (TA) and phenothiazine tranquilizers (PT). In leukocytes, preincubation of the cells ...
Regeneration in free grafts of normal and denervated muscles in the rat: Morphology and histochemistry Supported by grants from the Muscular Dystrophy Associations of America and a scientific exchange between the Academies of Sciences of the United States and Czechoslovakia. Reported earlier in abstract form (Carlson and Gutmann, 1973).
(Wiley Subscription Services, Inc., A Wiley Company, 1975-09)
Intact soleus and extensor digitorum longus muscles in the rat were freely grafted to the contralateral leg after either no preliminary tretment or 14 days prior denervation. Normal muscle grafts during the first week were ...
Properties of the genome in normal and SV-40 transformed WI-38 human diploid fibroblasts. III. Turnover of nonhistone chromosomal proteins and their phosphate groups
(Elsevier, 1975-04-01)
The turnover of nonhistone chromosomal proteins and their phosphate groups was compared in normal and in SV-40 virus transformed WI-38 human diploid fibroblasts. Cells were pulse labelled with tryptophan-3H and 32P for 30 ...
Enzyme stereoselectivity: The reversible reaction catalyzed by 2-keto-4-hydroxyglutarate aldolase of Escherichia coli
(Elsevier, 1975-08-04)
SummaryThe condensation of [3-3H3]-pyruvate with glyoxylate in 3HOH to form [3-3H2]-ketohydroxyglutarate was catalyzed by ketohydroxyglutarate aldolase of Escherichia coli to study the stereochemical behavior of the enzyme. ...
Drug inhibitable ecto-ATPase in leukocytes
(Elsevier, 1975-05-01)
In rat leukocytes, the total ATP-hydrolyzing activity was highest when determined in cells with an intact plasma membrane. The ecto-ATPase, exhibiting a Km for ATP of 0.3 mM, was inhibited 30% by sulfhydryl reagents, whereas ...
Effects of previous curare-immobilization on Pavlovian conditioned heart decelerations in the curarized rat
(Elsevier, 1975-03)
Recent evidence indicates that mechanisms other than the vagal-blocking properties of d-tubocurarine chloride (dTC) or inadequate respiration may account for the reports of invariant heart rate (HR) in curarized rats. Two ...
Citrulline metabolism in normal and citrullinemic human lymphocyte lines
(Kluwer Academic Publishers-Plenum Publishers; Plenum Publishing Corporation ; Springer Science+Business Media, 1975-08)
Citrullinemia is one of the five aminoacidurias associated with the Krebs-Henseleit urea cycle. A long-term lymphocyte line (UM-21) derived from a patient with this disease and nine of ten clones of this line were found ...
Differences in developing the lever-pressing behavior in two strains of rats
(Elsevier, 1975-06)
Learning to lever-press for food in rats may be experimentally analyzed according to (a) association of lever-pressing with food reinforcement; (b) development of the behavior of lever-pressing. The latter was studied in ...
Olfactory bulb projections in the bullfrog Rana catesbeiana
(Wiley Subscription Services, Inc., A Wiley Company, 1975-03)
The projections of the accessory and main olfactory bulbs of the bullfrog are described as part of a long term analysis of the morphological differences in amphibian and reptilian telencephalons. Unilateral aspiration of ...