Skewed X-chromosome inactivation in scleroderma.

Scleroderma is a female-prevalent autoimmune disease of unclear etiology. Two fundamental gender differences, skewed X-chromosome inactivation (XCI) and pregnancy-related microchimerism, have been implicated in scleroderma. We investigated the XCI patterns of female scleroderma patients and the parental origin of the inactive X chromosome in those patients having skewed XCI patterns (>80%). In addition, we investigated whether a correlation exists between XCI patterns and microchimerism in a well-characterized cohort. About 195 female scleroderma patients and 160 female controls were analyzed for the androgen receptor locus to assess XCI patterns in the DNA extracted from peripheral blood cells. Skewed XCI was observed in 67 (44.9%) of 149 informative patients and in 10 of 124 healthy controls (8.0%) [odds ratio (OR) = 9.3 (95% confidence interval (CI) 4.3-20.6, P 90%) was present in 44 of 149 patients (29.5%) but only in 3 of 124 controls (2.4%; OR = 16.9; 95% CI 4.8-70.4, P < 0.0001). Parental origin of the inactive X chromosome was investigated for ten patients for whom maternal DNA was informative, and the inactive X chromosome was of maternal origin in eight patients and of paternal origin in two patients. Skewed XCI mosaicism could be considered as an important risk factor in scleroderma

Analysis of the common genetic component of large-vessel vasculitides through a meta- Immunochip strategy

Giant cell arteritis (GCA) and Takayasu's arteritis (TAK) are major forms of large-vessel vasculitis (LVV) that share clinical features. To evaluate their genetic similarities, we analysed Immunochip genotyping data from 1,434 LVV patients and 3,814 unaffected controls. Genetic pleiotropy was also estimated. The HLA region harboured the main disease-specific associations. GCA was mostly associated with class II genes (HLA-DRB1/HLA-DQA1) whereas TAK was mostly associated with class I genes (HLA-B/MICA). Both the statistical significance and effect size of the HLA signals were considerably reduced in the cross-disease meta-analysis in comparison with the analysis of GCA and TAK separately. Consequently, no significant genetic correlation between these two diseases was observed when HLA variants were tested. Outside the HLA region, only one polymorphism located nearby the IL12B gene surpassed the study-wide significance threshold in the meta-analysis of the discovery datasets (rs755374, P?=?7.54E-07; ORGCA?=?1.19, ORTAK?=?1.50). This marker was confirmed as novel GCA risk factor using four additional cohorts (PGCA?=?5.52E-04, ORGCA?=?1.16). Taken together, our results provide evidence of strong genetic differences between GCA and TAK in the HLA. Outside this region, common susceptibility factors were suggested, especially within the IL12B locus

Autoimmune liver disease in patients with systemic lupus erythematosus: a retrospective analysis of 147 cases.

none8siOBJECTIVE: We aimed to investigate the characteristics of autoimmune liver disease (AILD) developed in patients with systemic lupus erythematosus (SLE), including autoimmune hepatitis (AIH), primary biliary cirrhosis (PBC) and the AIH/PBC overlap syndrome. We also evaluated the accuracy of diagnostic criteria and scoring systems for AILD in SLE. METHODS: A retrospective analysis of patients attending the rheumatology and gastroenterology clinics in Ankara, Turkey, between 1999 and 2010. SLE patients with elevated liver enzymes were investigated for liver diseases. RESULTS: A total of 147 SLE patients were identified and 36 of them had liver enzyme abnormalities. AILD was diagnosed in 4.7% of all SLE patients, in 19.4% of those with elevated liver enzymes. Of patients with liver enzyme abnormalities, 72.3% fulfilled the criteria for AIH proposed by the International Autoimmune Hepatitis Group (IAIHG), whereas 66.7% had AIH by using the simplified criteria. Yet, only 13.8% of these patients had liver biopsy findings consistent with AIH. Patients with AILD were treated with conventional therapy including ursodeoxycholic acid, prednisolone, azathioprine or combinations of these. Treatment failure and subsequent advanced liver disease developed in one patient. CONCLUSIONS: AILD may occur during the course of SLE. Due to biochemical similarities between AIH and SLE, AIH could be considered very probable by using both IAIHG scoring system and simplified criteria. For definitive diagnosis of AIH, liver biopsy should be performed in all SLE patients with chronic enzyme abnormalities. The response to therapy is favorable in these patients, and early diagnosis is important for preventing advanced liver disease.openEfe, C; Purnak, T; Ozaslan, E; Ozbalkan, Z; Karaaslan, Y; Altiparmak, E; Muratori, P; Wahlin, S.Efe, C; Purnak, T; Ozaslan, E; Ozbalkan, Z; Karaaslan, Y; Altiparmak, E; Muratori, P; Wahlin, S

Long-term outcome in Takayasu's Arteritis: vascular procedures performed in active or untreated patients have a poor outcome

WOS: 000268183700053

Follow-Up of Treatment Response With Dynamic Doppler Ultrasound in Raynaud Phenomenon

OBJECTIVE. The purpose of this study was to investigate the role of flow parameters obtained with dynamic Doppler ultrasound in the objective follow-up of treatment response in patients with Raynaud phenomenon (RP)

Fibromyalgia syndrome in patients with chronic sinusitis

Aims: Fatigue, diminished vitality, and increased bodily pain are common symptoms of chronic rhinosinusitis. On the other hand, there is an increased prevalence of rhinosinusitis symptoms among patients with unexplained chronic fatigue and/or bodily pain. Fibromyalgia syndrome is characterized by widespread pain and fatigue. In this Study we aimed to determine the prevalence of fibromyalgia among patients with chronic sinusitis