Indice di massa corporea e la prevalenza delle malattie della pelle negli adulti con malattia celiaca non trattata.
La celiachia (CD) è associata a malattie immuno-mediate della pelle come la dermatite erpetiforme e altre.
Lo studio ha esaminata la relazione tra indice di massa corporea (BMI), come un indice dello stato di assorbimento, e prevalenza di malattie della pelle in adulti con celiachia non trattata.
Viene concluso che il BMI è positivamente correlato alla prevalenza di psoriasi e dermatite erpetiforme, non a quella di altre malattie immuno-mediate della pelle.
Digestion. 2009;80(1):18-24. Epub 2009 May 7.
Body mass index and prevalence of skin diseases in adults with untreated coeliac disease.
Zingone F, Bucci C, Tortora R, Santonicola A, Cappello C, Franzese MD, Passananti V, Ciacci C.
OBJECTIVE: Coeliac disease (CD) is associated with immune-mediated skin diseases such as dermatitis herpetiformis and others.
The objective of the study was to investigate the relation of body mass index (BMI), as an index of absorptive status, with the prevalence of skin diseases in adults with untreated CD.
METHODS: Anthropometry, gastro-intestinal symptoms, nutritional indices and immune-mediated skin diseases (dermatitis herpetiformis, psoriasis, aphthosis and alopecia) at diagnosis were analysed.
RESULTS: 223 men and 924 women with untreated CD (aged 20-60 years) were included, the commonest skin disease was dermatitis herpetiformis (18.4 and 6.9%, respectively), the rarest one was alopecia (1.8 and 2.1%). The BMI was positively associated with male gender, age at diagnosis and nutritional indices, negatively with diarrhoea and dyspepsia (p < 0.001). A BMI difference of 3.5 (1 standard deviation) was related to an excess prevalence of dermatitis herpetiformis (odds ratio, OR = 1.46, 95% confidence interval, CI = 1.23-1.72) and of psoriasis (OR = 1.40, 95% CI = 1.10-1.79) but not of other immunological disorders. Findings were similar in analyses by gender or age group and controlled for gender and age. The relation of BMI to dermatitis herpetiformis was linear over the whole BMI range, also excluding overweight patients. The relation of BMI to psoriasis was flat for low-to-normal BMI and explained only by overweight patients.
CONCLUSION: In CD at diagnosis, the BMI is positively related to the prevalence of dermatitis herpetiformis and psoriasis, not to that of other immune-mediated skin diseases.