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PubMed1984

The Tel Hashomer camptodactyly syndrome in a consanguineous Brazilian family.

We report on two Brazilian sibs whose parents are first cousins with clinical findings of the Tel Hashomer camptodactyly syndrome, namely, camptodactyly, muscle hypoplasia, skeletal abnormalities, and abnormal palmar creases. Both affected sibs have flat orbital roofs not described in previous cases and a high number of dermatoglyphic arches. The patient's father had camptodactyly of the fifth fingers, possibly a heterozygote manifestation.

Adult↗
PubMed1984

Effects of consanguineous marriages on morbidity and precocious mortality: genetic counseling.

The excess risks of morbidity and precocious mortality for the offspring of incestuous matings and of matings of uncles-nieces and aunts-nephews, first cousins, first cousins once removed, and second cousins have been estimated as 32%, 18%, 9%, 5%, and 2.5%, respectively. These estimates are based on the theory of Morton et al [1956], assuming a damage (genetic and nongenetic) of 20% for the offspring of nonconsanguineous couples and two "deleterious" equivalents per gamete. Other possibilities (a damage of 40%; 2.5 deleterious equivalents per gamete), a partition of the total risk into prenatal and postnatal events, and some aspects of the inbreeding theory are also presented. Comments intended for persons interested in counseling are provided.

Adolescent↗