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Biomedical subjects

J Ruffié

Publications and source records attributed to J Ruffié.

At least 73 records · Page 4Linked to original sources
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Relationships between consanguinity and migration rate from surname distributions and isonymy in France.

The distribution of surnames in France during the period 1916-40 is analysed from the civil birth registers for each of the 36,500 administrative units. The migration rate estimated from surnames is compared with the migration rate obtained from demographic census data. The correlations calculated among the 90 Departments ranges between 0.52 and 0.76 according to the size of the communes. Moreover, the migration rate is shown to be highly correlated with the average coefficient of consanguinity based on dispensations for marriages between relatives. These findings point to the validity and the usefulness of quantifying migrations on the basis of surname data and they show that migration flux and consanguinity are inversely and closely linked.

Consanguinity↗
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Complexity of the Rh antigen demonstrated by comparative tests using antisera of human and primate origins.

Comparative analysis of two antisera, one produced in chimpanzee and another of human origin, demonstrates the existence of a spectrum of antibodies directed against at least four antigenic determinants connected with Rh reactivity. Some of the determinants are shared by chimpanzee and human red cells, while others are restricted to one species only. Based on this study, it is suggested that both the human Rh(D)-positive type and its chimpanzee counterpart, the Rc-positive type, could be of common origin, while the negative types are the results of later, parallel events during evolution.

Animals↗