| Literature DB >> 7381926 |
K Nagaki, S Hiramatsu, S Inai, A Sasaki.
Abstract
Total complement activity (CH50), and the protein levels of C1q, C4, C3, C5, C9, factor B and C1 inactivator were measured in the 1,130 sera obtained from healthy subjects aged between 20 and 79 years old. Increase in the levels of CH50, C1q, C4, C3, C5 and C9 and decrease of factor B were found in the older age group. The level of C1 inactivator showed little variation with aging.Entities:
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Year: 1980 PMID： 7381926
Source DB: PubMed Journal: J Clin Lab Immunol ISSN： 0141-2760