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Biochemical analysis of young rats homozygous for the cataract mutation cat.

Exp. Eye Res. 48, 1-9 (1989)
DOI PMC
Open Access Green möglich sobald Postprint bei der ZB eingereicht worden ist.
Cataractogenesis was studied in young rats homozygous for the radiation-induced recessive cataract mutation cat. Homozygous cat/cat rats have reduced body weight (about two-thirds of the wild type) when 3 weeks old. The litter size is also diminished to about two-thirds of the wild type. For lens-specific parameters, as compared with homozygous wild type, the wet weight of the cataractous lenses is reduced, although the concentration of water-soluble lens proteins per wet weight is the same. No major alterations could be detected in the pattern of the water-soluble lens proteins separated by isoelectric focusing or gel electrophoresis run with or without mercaptoethanol. Additionally, no statistically significant alterations could be detected in the biochemical parameters of the lens used as indicators for osmotic stress (water content of the lens and the Na+-K+-dependent ATPase), for the energy state (ATP) and for the redox state (oxidized glutathione and superoxide dismutase). In contrast, the activity of transglutaminase is significantly enhanced in lenses as well as in the liver of young cat-rats, which might be understood as a biochemical marker for alterations in the developmental program. Cataractogenesis in the cat-rat is, therefore, suggested to be part of a syndrome including dwarfism and reduced litter size.
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Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Schlagwörter Atp ; Cataract ; Crystallin ; Glutathione ; Rat ; Superoxide Dismutase ; Transglutaminase
Sprache englisch
Veröffentlichungsjahr 1989
HGF-Berichtsjahr 0
ISSN (print) / ISBN 0014-4835
e-ISSN 1096-0007
Quellenangaben Band: 48, Heft: 1, Seiten: 1-9 Artikelnummer: , Supplement: ,
Verlag Elsevier
Begutachtungsstatus Peer reviewed
Institut(e) Institut für Säugetiergenetik
Institut für Toxikologie
Institute of Radiation Biology (ISB)
PubMed ID 2563975
Scopus ID 0024585807
Erfassungsdatum 1989-12-31