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'Electron Spin Resonance' in keywords Facet   Publication Year 1980  [X]
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1Author    S. Cannistraro, P. L. Indovina, L. SportelliRequires cookie*
 Title    Paramagnetic Species in /^-Thalassemic Sera: an ESR Study  
 Abstract    Homozygous beta thalassemic sera show an electron spin resonance (ESR) signal at g ~ 6 which is not present in normal and heterozygous sera. The signal arises from high spin heme groups exhibiting a departure from tetragonal symmetry toward rhombic. Binding by a serum protein is very likely responsible for such a distortion. In contrast with other authors' findings, we report that heme-human albumin complex shows a similar rhombic distortion. The observed ESR signal at g ~ 6 is then attributed to this complex. 
  Reference    Z. Naturforsch. 35c, 193—196 (1980); received November 23 1979 
  Published    1980 
  Keywords    Heme Groups, Albumin, ^-Thalassemia, Electron Spin Resonance 
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 TEI-XML for    default:Reihe_C/35/ZNC-1980-35c-0193.pdf 
 Identifier    ZNC-1980-35c-0193 
 Volume    35 
2Author    PietroL. IndovinaRequires cookie*
 Abstract    We describe the appearance of a free-radical signal in the ESR spectrum of normal human serum incubated with several complement activating agents. The intensity o f this signal is dependent of dose of activating agents, time and temperature. Signals elicited by different complement activators differ in morphology and kinetics. Inhibition by treatment with EDTA and the presence o f the signal in activated C 6-deficient rabbit serum suggest that the con-vertase forming steps of complement activation (C2 to 5) could be the source of free-radical containing molecules. 
  Reference    Z. Naturforsch. 35c, 844—847 (1980); received May 12/June 16 1980 
  Published    1980 
  Keywords    Complement, Electron Spin Resonance, Free Radicals 
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 TEI-XML for    default:Reihe_C/35/ZNC-1980-35c-0844_n.pdf 
 Identifier    ZNC-1980-35c-0844_n 
 Volume    35