Clinical significance of serum hydroxyproline-containing peptides with special reference to hyproprotein

European Journal of Clinical Investigation
S Yamada, C Hirayama

Abstract

Serum hydroxyproline-containing peptides were separated into three fractions, i.e. large protein, polypeptide and smaller peptides, by gel filtration on Sephadex G-200. The large protein was presumed to be the C1q subunit of the first component of complement by an immunological analysis. The polypeptide had an electrophoretic mobility corresponding to beta-globulin and its molecular weight was estimated between 35000 and 45000 by gel filtration analysis. The polypeptide might well be defined as hyproprotein. The molecular weight of smaller peptides was estimated between 1400 and 3000. As compared with the control value, hyproprotein levels were significantly increased in rheumatoid arthritis, systemic lupus erythematosus and chronic liver disease. C1q levels were slightly lowered in rheumatoid arthritis and systemic lupus erythematosus, and were slightly increased in chronic liver disease but were not significant. In all patient groups smaller peptides levels remained in the normal range. These results suggest that serum hyproprotein levels are raised in some fibroproliferative disorders, probably reflecting collagen metabolism.

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Citations

Nov 16, 1992·Clinica Chimica Acta; International Journal of Clinical Chemistry·S YamadaY Horie
Dec 5, 1998·Veterinary Immunology and Immunopathology·S PaltrinieriS Comazzi
May 26, 2012·Saudi Journal of Gastroenterology : Official Journal of the Saudi Gastroenterology Association·Areeba Ahmad, Riaz Ahmad
Mar 3, 2011·European Archives of Oto-rhino-laryngology : Official Journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : Affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery·Hakan CincikEngin Dursun
Dec 1, 1992·Clinical Biochemistry·S YamadaN Yoshikawa
Oct 1, 1993·Hepatology : Official Journal of the American Association for the Study of Liver Diseases·T SuouH Kawasaki
Sep 19, 2007·Journal of Helminthology·M A Abu-MadiJ W Lewis
Jan 11, 2014·Pharmaceutical Biology·Areeba AhmadRiaz Ahmad
Sep 1, 1985·Journal of Clinical Chemistry and Clinical Biochemistry. Zeitschrift Für Klinische Chemie Und Klinische Biochemie·S MinisolaG Mazzuoli

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