Genetic polymorphism of C3 and serum levels of immunoglobulins, C3, C4 components of complement and C3-proactivator in four different populations of Afghanistan
✍ Scribed by D. P. Agarwal; H. W. Goedde; H. G. Benkmann; G. Flatz; A. G. Rahimi; S. Kaifie; H. Delbrück
- Publisher
- Springer
- Year
- 1976
- Tongue
- English
- Weight
- 323 KB
- Volume
- 33
- Category
- Article
- ISSN
- 0340-6717
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✦ Synopsis
The C3 phenotype distribution was studied in 4 different populations from Afghanistan. The gene frequencies of C3S allele were: Tajiks (0,8547), Pushtoons (0.8812), Hazaras (0.9036) and Osbeks (0.8530). These values were significantly higher than in European populations studied previously. No significant differences were found between the mean serum levels of C3, C4 and C3-proactivator among 4 population groups. A higher concentration of IgG, IgA and IgM was observed in Afghanistan sera than reported for Europeans.
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The effect of cadralazine and its active metabolite CGP 22639 on the covalent binding reaction of C4 and C3 has been studied. Trypsin-Sepharose was used to activate radio-labelled C3 and C4 and binding of the radio-labelled protein to the trypsin-Sepharose was measured. Cadralazine inhibited 50% of