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Patients with psoriasis are at a higher risk of developing nonalcoholic fatty liver disease

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Published:1st Oct 2015
Author: Abedini R, Salehi M, Lajevardi V, Beygi S.
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Ref.:Clin Exp Dermatol. 2015 Oct;40(7):722-7.
Patients with psoriasis are at a higher risk of developing nonalcoholic fatty liver disease

Psoriasis is a chronic, immune-mediated inflammatory skin disease with many extracutaneous manifestations. Several recent studies have indicated an increased prevalence of nonalcoholic fatty liver disease (NAFLD) among patients with psoriasis. In the present study, we investigated the prevalence of NAFLD in a population of Iranian patients with psoriasis.

Methods: NAFLD was assessed and graded using ultrasonography in 123 patients with psoriasis and 123 healthy controls (HCs) matched by age, sex and body mass index (BMI).

Results: The prevalence of NAFLD was significantly higher in the psoriatic group compared with the HC group (65.6% vs. 35%, P < 0.01, OR = 3.53). Median NAFLD grade was significantly greater in patients with psoriasis compared with HCs (grade 2 vs. grade 1, P < 0.01). In patients with psoriasis, NAFLD was associated with a higher frequency of hypertension (16.5%), abnormal liver function test (LFT) results (16.4%) and metabolic syndrome (46.6%). Moreover, patients with psoriasis and NAFLD tended to have significantly higher values for BMI, waist circumference (WC), Psoriasis Activity and Severity Index (PASI), and levels of serum triglyceride, cholesterol, low-density lipoprotein and fasting blood sugar (FBS). Multivariate logistic regression revealed that WC, PASI, LFT abnormalities, hypertension and cigarette smoking were independent predictors of NAFLD grade.

Conclusions: Our findings warrant a detailed assessment of metabolic comorbidities including NAFLD in patients with a primary diagnosis of psoriasis. Lifestyle modifications, including weight loss and smoking cessation, may be necessary for patients with psoriasis to decrease the risk and severity of NAFLD.

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