1980
DOI: 10.1002/art.1780230804
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Familial discoid lupus erythematosus associated with heterozygote c2 deficiency

Abstract: Two siblings with chronic discoid lupus erythematosus and several family members were found with heterozygous C2 deficiency. An association with histocompatibility markers HLA‐B 18 and HLA‐D w2 was demonstrated, and the slow allotype of factor B was present. Linkage studies in this family suggested a close linkage between the C2 deficiency gene and genes coding for B18, Dw2, and BfS antigens. One HLA‐A CB/DBF recombinant was observed showing closer linkage between HLA‐D and Bf than between HLA‐B and Bf.

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Cited by 13 publications
(5 citation statements)
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“…Familial discoid lupus erythematosus among siblings have been reported in the literature. 8,9 Inducing factors UV exposure, viral infection, drugs and smoking reported as inducing factors of LE were observed in our patients and was in concordance with the literature. 10,11 Smoking was observed in 8 out of 10 male patients (80%) in the study group.…”
Section: Familial Incidencesupporting
confidence: 92%
See 1 more Smart Citation
“…Familial discoid lupus erythematosus among siblings have been reported in the literature. 8,9 Inducing factors UV exposure, viral infection, drugs and smoking reported as inducing factors of LE were observed in our patients and was in concordance with the literature. 10,11 Smoking was observed in 8 out of 10 male patients (80%) in the study group.…”
Section: Familial Incidencesupporting
confidence: 92%
“…The localized type (n=30) was found to be more common than disseminated type (n=21) ( Figure 1). Localized disease was classified based on the total number of lesions, as mild (<5), moderate (5)(6)(7)(8)(9)(10) and severe (>10). Mild localized disease was recorded in 66% (n= 20), moderate form in 33% (n=10) and none had severe form of localized disease.…”
Section: Clinical Type Of Dlementioning
confidence: 99%
“…The clinical appearance of the erythematous papules on the face and upper trunk and the induction of the lesions by sun exposure resembles lupus erythematosus, especially the tumidus [7]and familial discoid forms [8], and polymorphic light eruption. In contrast to these entities, Jessner’s lymphocytic infiltration of the skin presents clinically with asymptomatic and nonscarring lesions and histologically with dermal infiltrates rather than with cytotoxic involvement of the epidermis such as interface dermatitis and hydropic degeneration [9]and interstitial mucin deposition [7].…”
Section: Discussionmentioning
confidence: 99%
“…[14][15][16] The differential diagnosis of a familial erythematous infiltrative facial rash includes discoid lupus erythematosus, polymorphic light eruption and familial annular erythema. [17][18][19][20] We now describe two sisters, one with clinical and histological features suggestive of Jessner's lymphocytic infiltrate (infiltrated plaques of the face and trunk, dermal perivascular lymphocytic infiltration with a normal epidermis and negative immunofluorescent findings) and the other of discoid lupus erythematosus (facial plaques with scale and plugging, photosensitivity and classical histological features). Further, the presence of the HLA B8 haplotype in both sisters is consistent with lupus.…”
Section: Discussionmentioning
confidence: 99%