Our data show that MTTP genetic polymorphisms influence the susceptibility to developing NAFLD independently or jointly in the Han Chinese population.
Adult-onset Still's disease (AOSD) is a systemic inflammatory autoimmune disorder of unknown etiology and pathogenesis. There are no specific laboratory tests for AOSD. To investigate the potential role of adenosine deaminase (ADA) in the diagnosis of AOSD and analyze the correlation among ADA, LDH and WBC (white blood cell count), the serum levels of ADA and LDH in 26 patients with active untreated AOSD, 40 patients with active systemic lupus erythematosus (SLE) as disease control and 48 healthy volunteers as healthy control were determined using automatic biochemical analyzer (Olympus AU2700, Japan). WBC was examined by automatic blood cell analyzer (Beckman Coulter Hmx, America). Significantly higher levels of serum ADA, LDH and WBC were found in active untreated AOSD patients than in active SLE patients and healthy volunteers (F = 27.823; P = 0.000; F = 28.458, P = 0.000; F = 51.929, P = 0.000). Serum ADA were related to LDH level in patients with AOSD patients (r = 0.786, P = 0.000 < 0.01). Both ADA and LDH were not related to WBC (r = 0.244, P = 0.229 > 0.01; r = 0.054, P = 0.794 > 0.01). This is the first study to show that serum ADA could play an important role in AOSD and may be an important biomarker for the diagnosis of AOSD. Serum ADA could be another diagnostic marker independent from whole blood WBC.
Background The prevalence of Non-alcoholic fatty liver disease (NAFLD) is increasing and emerging as a global health burden. In addition to environmental factors, numerous studies have shown that genetic factors play an important role in the development of NAFLD. Copy number variation (CNV) as a genetic variation plays an important role in the evaluation of disease susceptibility and genetic differences. The aim of the present study was to assess the contribution of CNV to the evaluation of NAFLD in a Chinese population. Methods Genome-wide analysis of CNV was performed using high-density comparative genomic hybridisation microarrays (ACGH). To validate the CNV regions, TaqMan real-time quantitative PCR (qPCR) was utilized. Results A total of 441 CNVs were identified, including 381 autosomal CNVs and 60 sex chromosome CNVs. By merging overlapping CNVs, a genomic CNV map of NAFLD patients was constructed. A total of 338 autosomal CNVRs were identified, including 275 CNVRs with consistent trends (197 losses and 78 gains) and 63 CNVRs with inconsistent trends. The length of the 338 CNVRs ranged from 5.7 kb to 2.23 Mb, with an average size of 117.44 kb. These CNVRs spanned 39.70 Mb of the genome and accounted for ~ 1.32% of the genome sequence. Through Gene Ontology and genetic pathway analysis, we found evidence that CNVs involving nine genes may be associated with the pathogenesis of NAFLD progression. One of the genes (NLRP4 gene) was selected and verified by quantitative PCR (qPCR) method with large sample size. We found the copy number deletion of NLRP4 was related to the risk of NAFLD. Conclusions This study indicate the copy number variation is associated with NAFLD. The copy number deletion of NLRP4 was related to the risk of NAFLD. These results could prove valuable for predicting patients at risk of developing NAFLD.
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