The Genetics of Psoriasis
- 1 February 1972
- journal article
- research article
- Published by American Medical Association (AMA) in Archives of Dermatology
- Vol. 105 (2), 197-207
- https://doi.org/10.1001/archderm.1972.01620050011002
Abstract
The genetics of psoriasis has been studied with a questionnaire requesting information on presence or absence of the disease in relatives of 698 probands and 104 controls (spouses of probands). A statistically significant familial concentration of the disease has been demonstrated which, together with twin studies, supports the concept that hereditary factors contribute to the etiology of psoriasis. Pedigree analysis and frequencies of psoriasis among siblings of probands were not consistent with inheritance of genetic differences at a single autosomal or x-linked locus, even with decreased penetrance due to delayed age of onset. These findings plus further analysis suggested that psoriasis is determined by multifactorial inheritance. Estimates of heritability of liability for psoriasis were consistent among parents (64%) and siblings (65%) of probands. Hereditary factors play an important role in the etiology of psoriasis.Keywords
This publication has 6 references indexed in Scilit:
- FAMILIAL PREDISPOSITION IN MANBritish Medical Bulletin, 1969
- The inheritance of liability to certain diseases, estimated from the incidence among relativesAnnals of Human Genetics, 1965
- Inheritance of Psoriasis in a Utah KindredArchives of Dermatology, 1961
- THE INHERITANCE OF CONGENITAL PYLORIC STENOSISBritish Medical Bulletin, 1961
- GENETIC ASPECTS OF PSORIASISHuman Heredity, 1957
- XV.—The Correlation between Relatives on the Supposition of Mendelian Inheritance.Transactions of the Royal Society of Edinburgh, 1919