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Rhythmic and phytochrome-regulated changes in transmembrane potential in Samanea pulvini
NYCTINASTIC plants such as Albizzia julibrissin , Mimosa pudica and Samanea saman have compound leaves with paired leaflets which are usually...
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Cyclic AMP and Protein Phosphorylation in the Central Nervous System in Relation to Synaptic Function
The existence of enzymic processes that phosphorylate and dephosphorylate serine and threonine hydroxyl groups in mammalian tissue proteins has been...
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Biphasic effect of cyclic AMP on an immune response
AGENTS which enhance intracellular adenosine 3′, 5′—monophosphate (cyclic AMP) levels by inhibiting cyclic AMP phosphodiesterase activity can...
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The effect of environmental lighting on porphyrin metabolism in the rat
THE direct action of light on the skin in porphyria is well documented. There is a specific spectral response in that light of wavelengths between...
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Plasma cell surface antigen on human blood lymphocytes
THERE is considerable evidence that lymphocytes bearing immunoglobulins on their surfaces are present in the peripheral blood of various animal...
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Noradrenaline binding and the search for catecholamine receptors
The binding of 3 H-noradrenaline to intact cells and microsomes seems not to measure catecholamine receptor interactions, but rather a membrane...
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Absence of Gibberellin-like Substances in Filtrates of Marasmius perniciosus Stahel (Witch Broom Disease of Cacao)
CACAO plants ( Theobroma cacao ) infected with Marasmius perniciosus produce excessive and abnormal branching, a condition known as witch broom...
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Responses of Rat Testes and Accessory Glands to Testosterone, Pilocarpine and Copulation
ATROPHY of the interstitial cells and a decrease in testis size occur in the rat after treatment with testosterone propionate 1 , the response being...
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Reduced Adenyl Cyclase Activity in a Polyoma Virus Transformed Cell Line
THERE is now substantial evidence that the intracellular concentration of adenosine 3′5′ cyclic monophosphate (cyclic-AMP) is an important factor in...
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Contributions of Medicinal Chemistry to Medicine — from 1935
This review surveys briefly some of the contributions of medicinal chemistry to medicine of the past 30 years and identifies some new problems. This...
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Recent Research in the Field of 5-Hydroxytryptamine and Related Indolealkylamines
This review article is intended to give an account of the progress of research in the field of 5-hydroxytryptamine (5-HT) and related...
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Inhibition of Sensitiveness to Nicotine of Rabbit Aorta by Reserpine, Hexamethonium, Ethyl Flavone-7-Oxyacetate and Other Compounds
Burn and Rand 1 demonstrated that some spastic effects of nicotine on aortic strips can be abolished by a prophylactic treatment with reserpine. The...
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Nonsteroid Antiinflammatory Agents
The drugs with which this review will be concerned are those which are useful in the treatment of connective tissue diseases. These disorders are...
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Newer Diuretics
In the following sections several classes of diuretic agents have been discussed, first from the viewpoint of their contribution to a greater...
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The Quantitative Analysis of Drugs
Although the percentage of total acid present may be determined by direct titration with N alkali to phenolphthalein, 1 ml N = 0.06005 g, the purity...