Results 261 to 270 of about 2,836,469 (290)
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Biologically active indolizidine alkaloids
Medicinal Research Reviews, 2020AbstractIndolizidine alkaloids are chemical constituents isolated from various marine and terrestrial plants and animals, including but not limited to trees, fungi, ants, and frogs, with a myriad of important biological activities. In this review, we discuss the biological activity and pharmacological effects of indolizidine alkaloids and offer new ...
Junmin Zhang +6 more
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Biological activity of sterigmatocystin
Mycopathologia et Mycologia Applicata, 1968The biological activity of sterigmatocystin towards mice, ducklings, and some microorganisms was determined. The LD50 of sterigmatocystin for mice was in excess of 800 mg/kg. Aflatoxin B1 was 125 times more toxic in the ducklings tests than was sterigmatocystin.
E B, Lillehoj, A, Ciegler
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1996
The addition of organic manure not only maintains but even improves soil fertility and, from earliest times, humus has been recognized as one of the major natural resources for agricultural purpose. In the absence of animal dung the value of green manure was recognized by the ancient Chinese (Jiao, 1983), while the Romans systematically used animal ...
NARDI, SERENELLA +2 more
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The addition of organic manure not only maintains but even improves soil fertility and, from earliest times, humus has been recognized as one of the major natural resources for agricultural purpose. In the absence of animal dung the value of green manure was recognized by the ancient Chinese (Jiao, 1983), while the Romans systematically used animal ...
NARDI, SERENELLA +2 more
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Biological activities of oxysterols
Free Radical Biology and Medicine, 1989Literature dealing with the biological activities of cholesterol autoxidation products and related oxysterols in vivo and in vitro published since the previous 1981 monograph is reviewed. Although several oxysterols are important cholesterol metabolites implicated in bile acids and steroid hormones biosynthesis, effects on cellular membranes and on ...
L L, Smith, B H, Johnson
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Biological Activity of Silatranes
1978About 15 years ago we discovered high toxicity and specific biological activity of 1-arylsilatranes (1, 2) which, at that time, belonged to an almost unknown class of heterocyclic derivatives of penta-coordinate silicon with general formula (Fig. 1).
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Biologically Active Organotin Polymers
Annals of the New York Academy of Sciences, 1985The synthesis, structure, and properties of polymers in which tin is chemically anchored as tributyltin carboxylate are discussed. A base copolymer with anhydride or carboxyl groups is partially esterified with tributyltin oxide; the free carboxyls are then reacted with diepoxides to yield cross-linked controlled release formulations.
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BIOLOGICAL ACTIVITIES OF HAMYCIN
Canadian Journal of Microbiology, 1966After ad ministration of an oral dose to mice, hamycin, an antifungal antibiotic, penetrated the body tissues and eliminated Cryptococcus neoformans present in the lungs. Out of 11 polyenes (hamycin, aureofungin, trichomycin, etruscomycin, amphotericin B, pimaricin, mycostatin, candidin, candicidin, PA150, and filipin), hamycin and aureofungin showed ...
A C, Maniar, S, Mavdikar
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Biological Activity of Phosphoramidothionates
Nature, 1966IN the course of our work on this class of compound an animal-anthelmintic1 and a selective herbicide2 had previously been discovered. Common to the structures of the two compounds was the linking of the phosphor-amidothionate group (I) to a chlorinated phenyl ring by an oxygen atom.
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Biological activities of laminin
Journal of Cellular Biochemistry, 1985AbstractLaminin is a multifunctional protein with diverse biological activities. Like fibronectin, it can influence cell adhesion, growth, morphology, differentiation, migration, and agglutination as well as the assembly of the extracellular matrix.
H K, Kleinman +7 more
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Biological Activities of Complement
Biochemical Society Transactions, 1978Complement is a system of serum proteins whose main function is to defend the body against infection. Although it has a reputation as a dauntingly complex system, this results chiefly from confusion in the nomenclature, which has varied considerably with time as more components were discovered, for example as ‘component C3’ became subdivided into ...
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