Background Data regarding the association between atopic dermatitis (AD) and the metabolic syndrome are controversial. Objective To evaluate the prevalence of the metabolic syndrome and its components in a large group of patients with AD compared to a matched reference group. Methods A cross‐sectional study of AD patients diagnosed by a dermatologist between 1998 and 2016, and a matched comparison group was performed. We analysed the association between AD and metabolic syndrome, its components and possible complications for the entire study population, adults (age > 18) and adults with moderate‐to‐severe AD. Results The study included 116 816 patients with AD and 116 812 comparison enrollees. AD in the entire group of patients and in the adult patients was associated with a higher prevalence of dyslipidaemia and a lower prevalence of diabetes and metabolic syndrome. Moderate and severe AD were associated, respectively, with higher prevalence rates of the metabolic syndrome (17.0% vs. 9.4%), its components (obesity: 22.2% vs. 18.6%; diabetes: 15.9% vs. 9.2%; hypertension 27.9% vs. 15.3%; dyslipidaemia 47.1% vs. 28.5%, all P values < 0.001) and cardiovascular morbidity (all P values < 0.001). Multivariate analysis demonstrated a significant overrepresentation of the metabolic syndrome in moderate‐to‐severe AD (P = 0.04). Conclusions Severely affected patients with AD may have one or more undiagnosed components of metabolic syndrome.

Studies of ciliopathies have served in elucidating much of our knowledge of structure and function of primary cilia. We report humans with Bardet-Biedl syndrome who display intellectual disability, retinitis pigmentosa, obesity, short stature and brachydactyly, stemming from a homozyogous truncation mutation in SCAPER, a gene previously associated with mitotic progression. Our findings, based on linkage analysis and exome sequencing studies of two remotely related large consanguineous families, are in line with recent reports of SCAPER variants associated with intellectual disability and retinitis pigmentosa. Using immuno-fluorescence and live cell imaging in NIH/3T3 fibroblasts and SH-SY5Y neuroblastoma cell lines over-expressing SCAPER, we demonstrate that both wild type and mutant SCAPER are expressed in primary cilia and co-localize with tubulin, forming bundles of microtubules. While wild type SCAPER was rarely localized along the ciliary axoneme and basal body, the aberrant protein remained sequestered to the cilia, mostly at the ciliary tip. Notably, longer cilia were demonstrated both in human affected fibroblasts compared to controls, as well as in NIH/3T3 cells transfected with mutant versus wildtype SCAPER. As SCAPER expression is known to peak at late G1 and S phase, overlapping the timing of ciliary resorption, our data suggest a possible role of SCAPER in ciliary dynamics and disassembly, also affecting microtubule-related mitotic progression. Thus, we outline a human ciliopathy syndrome and demonstrate that it is caused by a mutation in SCAPER, affecting primary cilia.

IMPORTANCE Hidradenitis suppurativa (HS) in pediatric patients has been understudied. Increased awareness and recognition of HS prevalence in children demand efforts to better understand this condition.OBJECTIVE To describe the demographics, clinical features, treatment, associated comorbidities, and outcomes in a large cohort of pediatric patients with HS.DESIGN, SETTING, AND PARTICIPANTS International, multicenter, retrospective medical record review of pediatric patients (aged 1-18 years) with a clinical diagnosis of HS carried out in 10 dermatology clinics across the US,

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Background Emerging evidence suggests that chronic urticaria (CU) is associated with chronic, low-grade, inflammatory process.Objective To evaluate the association between CU and metabolic syndrome and its components in a large community-based medical database.Methods A cross-sectional study of CU patients and matched controls was performed. CU was defined as eight urticaria diagnoses (with each two diagnoses registered within a period of 6 weeks) from 2002 to 2012. Data regarding the prevalence of metabolic syndrome, its components and possible complications were collected. ResultsThe study included 11 261 patients with CU and 67 216 controls. In a univariate analysis, CU was significantly associated with higher body mass index (BMI) and a higher prevalence of obesity, diabetes, hyperlipidaemia, hypertension, metabolic syndrome, chronic renal failure and gout. Multivariate analysis demonstrated a significant association between CU and metabolic syndrome (OR = 1.12, 95% CI 1.1-1.2, P < 0.001) and its componentsobesity (OR = 1.2, 95% CI 1.1-1.3, P < 0.001), diabetes (OR = 1.08, 95% CI 1.01-1.15, P = 0.001), hyperlipidaemia (OR = 1.2, 95% CI 1.1-1.2, P < 0.001) and hypertension (OR = 1.1, 95% CI 1.1-1.2, P < 0.001).Conclusions CU patients may have one or more undiagnosed components of metabolic syndrome despite their young age. Thus, appropriate targeted screening is advised.

Background Gut microbiome influences cutaneous diseases including atopic dermatitis. Possible impact of intrauterine exposure to meconium on the occurrence of dermatitis and skin rash was proposed. Objective We investigated the possible influence of intrauterine exposure to meconium‐stained amniotic fluid (MSAF) on the occurrence of dermatitis and skin rash‐related hospitalizations throughout childhood. Methods Singleton deliveries occurring between 1991 and 2014 at a single medical centre were divided into two study groups based on presence or lack of MSAF during delivery. Population‐based cohort analysis, Kaplan–Meier survival analysis and Cox proportional hazards model were used to study the association between MSAF and cutaneous morbidity‐related hospitalizations. Results A lower rate of the total dermatitis or skin eruption‐related hospitalization was documented in the MSAF‐exposed group; 0.78 per 1000‐person years (0.9%, n = 312), as compared to 0.98 per 1000‐person years in the unexposed group (1.0%, n = 1992) with a hazard ratio of 0.86 (95% CI 0.76‐0.96, P = 0.011). The survival curve showed lower cumulative hospitalization rate in the MSAF‐exposed group as compared to the unexposed group (log rank P = 0.01). The Cox analysis, controlled for confounders, demonstrated MSAF exposure to be an independent protective factor for dermatitis and skin rash‐related hospitalizations during childhood (adjusted HR 0.878 (95% CI 0.779‐0.990, P = 0.034). Conclusion Fetal exposure to MSAF appears to be an independent protective factor for dermatitis and skin rash‐related hospitalizations in the offspring throughout childhood and adolescence.

Our study quantifies healthcare services utilization and drug use in patients with psoriasis.

Treatment arsenal for atopic dermatitis has expanded dramaticly during last years. To allow the incorporation of the newly introduced, expensive treatments the epidemiology and healthcare service utilization of patients with atopic dermatitis must be defined in a timely manner. We report an increased burden of healthcare utilization across the entire spectrum of healthcare services in a large group of 116,816 patients with atopic dermatitis compared with controls without atopic dermatitis. Increased emergency room visits, hospitalizations in dermatology wards, and overall hospitalizations were found. A dose-response manner according to disease severity was observed. Understanding of the epidemiology and healthcare service utilization related to atopic dermatitis is necessary to inform the use of new treatments. This cross-sectional study was based on a group of patients with atopic dermatitis and a matched control group comprised of age-and sex-matched enrolees without atopic dermatitis from a large medical database. Healthcare service utilization usage data were extracted and compared between groups. The study included 116,816 patients with atopic dermatitis and 116,812 controls. Atopic dermatitis was associated with an increased burden of healthcare utilization across the entire spectrum of healthcare services compared with controls. For patients severely affected by atopic dermatitis, the increased burden correlated with disease severity: a high er frequency of emergency room visits (odd ratio (OR) 1.7; 95% confidence interval (CI) 1.6-1.9), dermatology wards hospitalizations (OR 315; 95% CI 0-7,342), and overall hospitalizations (OR 3.6; 95% CI 3.3-3.9). In conclusion, this study demonstrates an increased burden of healthcare utilization in atopic dermatitis.