Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0149958 (complex partial seizures)
 2,563 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

The dynamic mechanical properties of purified collagen from bovine tendon were studied using a torsion pendulum in the temperature range of 120 degrees -360 degrees K at 0.3-1 cps. In the temperature range studied, two loss peaks were observed: a beta-peak at about 200 degrees K, and an alpha-peak approximately five times larger at about 280 degrees K. The temperature of the alpha-transition is shown to be dependent on water content, decreasing with increasing amount of water and shifting to lower temperatures. Broad-line proton magnetic resonance results were also obtained on similar samples. A narrow nuclear magnetic resonance (NMR) line appears at about 250 degrees C. The effects of shrinkage to form gelatin and of cross-linking on the relaxation behavior of collagen were also studied. The motions taking place in collagen over the 120 degrees -360 degrees K range are discussed.
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PMID:Relaxation behavior of collagen. 473 57

Using radioautography, the influence of the industrial frequency electromagnetic field (50 cps) (EMF i/f), with the tension of 50 and 150 kv/m was studied, on the synthesis of collagen and non-collagen proteins in cultured fibroblast-like human embryo cells in the presence and absense in the medium of adrenaline and of cyclic adenosine monophosphate (cAMP). The EMF depresses protein proportionally to its intesity and duration. The specific function of fibroblasts -- the synthesis of collagen -- is subject to this influence to a great extent. The preliminary administration of adrenaline or cAMP prevented the above changes. The cyclic AMP exerted a much stronger protective effect.
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PMID:[Effect of an industrial-frequency electromagnetic field on protein biosynthesic processes of embryonal fibroblasts in tissue culture]. 625 85