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1984 (1)
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1Author    Wolf Strecker, Siegfried Silz, Gerhard Ruhenstroth-Bauer, Ingolf BöttgerRequires cookie*
 Title    Insulin und Glukagon im Blutplasma teilhepatektomierter Ratten Insulin and Glucagon in the Blood Plasma of Partial Hepatectomized Rats  
 Abstract    U p to 4 weeks after partial hepatectomy the concentrations o f im m unoreactive insulin and glucagon in the blood plasma of rats were determined. Furtherm ore we m easured the activity of acid phosphatase in the serum, the concentration of cyclic AM P in liver cells, the activities of acid phosphatase in whole liver cells and in the cytosol of liver cells after partial hepatectomy. 2 h after partial hepatectom y there was a decline of the concentration o f insulin in the plasm a to about 13% of the initial value. 12 h after surgery a 5-fold increase of glucagon was found in the plasma. Shortly after this cyclic AMP reached its highest concentration. The activity of acid phosphatase in the whole liver cells and in the cytosol decreases slightly in the first 24 h after surgery whereas there is an increase o f the activity of acid phosphatase in the serum. 
  Reference    Z. Naturforsch. 35c, 65—7 (1980); eingegangen am 2. M ärz/2. August 1979 
  Published    1980 
  Keywords    Rat, Partial Hepatectomy, Blood Plasma, Glucagon, Insulin 
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 TEI-XML for    default:Reihe_C/35/ZNC-1980-35c-0065.pdf 
 Identifier    ZNC-1980-35c-0065 
 Volume    35 
2Author    G. Csaba, P. Ková, Ágnes Inczefi, -G OndaRequires cookie*
 Title    Insulin B ind ing S ite s Induced in the Tetrahymena by R at Liver R ecep tor A ntibody  
 Abstract    Tetrahvmena cells treated with purified rabbit anti­ bodies to rat hepatocellular membrane exhibited a consider­ able increase in binding capacity on reexposure to the antibody 24 h later. Insulin binding was similarly enhanced by preexposure to the antibody, and vice versa, preex­ posure to insulin enhanced the later binding o f rat liver receptor antibodies. This suggests that (1) the Tetrahymena and the rat possess similar insulin receptors, and (2) the receptor antibody is also able to induce imprinting for itself as well as for insulin. Concanavalin-A, noted for binding overlap with insulin, failed to induce imprinting either for insulin or for antibodies to receptors, whereas the latter did induce imprinting for Concanavalin-A. 
  Reference    Z. Naturforsch. 39c, 183 (1984); received July 4/A ugust 22 1983 
  Published    1984 
  Keywords    Tetrahymena, Receptor-antibody, Insulin, Binding Sites 
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 TEI-XML for    default:Reihe_C/39/ZNC-1984-39c-0183_n.pdf 
 Identifier    ZNC-1984-39c-0183_n 
 Volume    39 
3Author    JiřinaK. OpoldováRequires cookie*
 Title    Radiation Aggregates of Insulin  
 Abstract    During the irradiation of aqueous solution of insulin (pH 1.8) the decrease o f original insulin molecules and the formation of radiation aggregates o f insulin was studied in dependence on the concentration of irradiation solution, on the doses and conditions o f irradiation (oxygenated and oxygen-free atmosphere, the presence of ?-butanol, addition o f [14C] amino acids). From the results obtained and results published earlier it may be assumed that in irradiated solution on insulin new covalent bonds between insulin molecules are formed at tyrosyl, phenylalanyl and cystyl radi­ cals; these radicals are formed by the action of both direct and indirect effect (at present pH 1.8 mainly of H atoms). 
  Reference    Z. Naturforsch. 34c, 1139—1143 (1979); received January 22/M ay 4 1979 
  Published    1979 
  Keywords    G am m a-Irradiation, Insulin, Aqueous Solution, R adiation Aggregates 
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 TEI-XML for    default:Reihe_C/34/ZNC-1979-34c-1139.pdf 
 Identifier    ZNC-1979-34c-1139 
 Volume    34 
4Author    M. Fouad, Mohamed Abd-El-Fattah, Reiner Scherer, Gerhard Ruhenstroth-BauerRequires cookie*
 Title    Effect of Glucocorticoids, Insulin and a Growth Promoting Tripeptide on the Biosynthesis of Plasma Proteins in Serum-Free Hepatocyte Cultures "Fouad  
 Abstract    The effect o f cortisol, dexamethasone, insulin and a liver cell growth prom oting tripeptide on the secretion o f plasma proteins into the m edium o f rat hepatocytes in monolayer cultures was studied. Cortisol and dexamethasone resulted in ~ 2.5-fold increase in the fibrinogen synthesis with general supression of album in and a-lipoprotein synthesis. On the other hand, insulin inhibited the biosynthesis o f most plasma proteins except for the complem ent system and transferrin. Concentrations o f a-lipoprotein, a-1-mac­ roglobulin and haptoglobin were moderately elevated when the tripeptide Gly-His-Lys was applied in low concentra­ tion. 
  Reference    Z. Naturforsch. 36c, 350—352 (1981); received September 19/December 15 1980 
  Published    1981 
  Keywords    Rat Hepatocytes, Cultures, Plasma Proteins, G lucocorti­ coids, Insulin 
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 TEI-XML for    default:Reihe_C/36/ZNC-1981-36c-0350_n.pdf 
 Identifier    ZNC-1981-36c-0350_n 
 Volume    36