Adipose tissue remodelling in obese subjects is a determinant of presence and severity of fatty liver disease.

AIMS: Experimental data suggest that visceral adipose tissue (VAT) dysfunction contributes to non-alcoholic fatty liver disease (NAFLD) development in obesity, however, data on humans are limited. Aims of this study were to investigate the relationship between NAFLD and VAT morphofunctional impairment and to determine whether the extent of VAT remodelling is associated with liver damage and metabolic alterations in obesity. METHODS: We analysed data from 40 obese individuals candidate to bariatric surgery in whom paired intraoperative liver and omental biopsies were performed for diagnosing NAFLD and VAT inflammation by immunohistochemistry and mRNA expression studies. RESULTS: Within our study population, NAFLD was significantly associated with greater VAT CD68+ macrophages infiltration (P = .04), fibrosis (P = .04) and impaired microvascular density (P = .03) as well as increased expression of markers of local hypoxia, apoptosis and inflammation (UNC5B, CASP7, HIF1-α, IL-8, MIP2, WISP-1, all P < .01). The degree of VAT inflammation correlated with the severity of hepatic injury (steatosis, inflammation, fibrosis; all P < .01) and impaired gluco-metabolic profile. CONCLUSIONS: In obese patients, NAFLD is associated in a dose-dependent manner with signs of VAT remodelling, which reflect more severe clinical metabolic impairment. Our study depicts morphological alterations and novel mediators of VAT dysfunction, adding knowledge for future therapeutic approaches to NAFLD and its metabolic complications.

Clinical researches on the efficacy of spa therapy in fibromyalgia. A systematic review.

BACKGROUND: Fibromyalgia is characterized by chronic widespread pain, tenderness at muscle and tendon insertions point when digital pressure is applied, sleep disorders, chronic fatigue, depressive episodes, anxiety, and other functional somatic syndromes. OBJECTIVE: The aim of this study was to determine whether balneotherapy with mineral waters and mineral-water containing mud is effective in the management of fibromyalgia. METHODS: We conducted a systematic review of the literature regarding spa therapy in the treatment of the fibromyalgia. We searched many databases for articles published between 2000 and 2012 and we selected 7 studies among 65 articles retrieved. A total of 142 patients received balneotherapy and 129 were controls. CONCLUSION: Study data confirms that spa therapy could improve the symptoms of fibromyalgia including pain, depression and minor symptoms.

Liver vitamin D receptor, CYP2R1, and CYP27A1 expression: relationship with liver histology and vitamin D3 levels in patients with nonalcoholic steatohepatitis or hepatitis C virus.

UNLABELLED: Evidence suggests an association between low serum 25-hydroxy-vitamin D(3) [25(OH)D(3) ] levels and the presence and prognosis of liver disease. Vitamin D receptor (VDR) has been widely detected in the liver, but its expression in the course of liver disease has never been investigated. We evaluated the hepatic expression of VDR along with that of vitamin D 25-hydroxylases in patients with nonalcoholic steatohepatitis (NASH) or chronic hepatitis C (CHC) and its relationship with hepatic histological features and serum 25(OH)D(3) levels. We evaluated 61 patients (25 NASH and 36 CHC) who had undergone liver biopsy for clinical purposes and 20 subjects without liver disease. Serum 25(OH)D(3) was measured via colorimetric assay. Expression of VDR, CYP2R1, and CYP27A1 was evaluated via immunohistochemistry in hepatocytes, cholangiocytes, and liver inflammatory cells. Parenchymal and inflammatory cells from liver biopsies of patients with NASH and CHC expressed VDR, CYP2R1, and CYP27A1. In NASH patients, VDR expression on cholangiocytes was inversely correlated with steatosis severity (P < 0.02), lobular inflammation (P < 0.01), and nonalcoholic fatty liver disease score (P < 0.03). Moreover, expression of CYP2R1 in hepatocytes correlated strongly with VDR positivity on liver inflammatory cells. In CHC subjects, fibrosis stage was associated with low hepatic CYP27A1 expression, whereas portal inflammation was significantly higher in patients with VDR-negative inflammatory cells (P < 0.009) and low VDR expression in hepatocytes (P < 0.03). CONCLUSION: VDR is widely expressed in the liver and inflammatory cells of chronic liver disease patients and its expression is negatively associated with the severity of liver histology in both NASH and CHC patients. These data suggest that vitamin D/VDR system may play a role in the progression of metabolic and viral chronic liver damage. (HEPATOLOGY 2012;56:2180-2187).

Functional rs20417 SNP (-765G>C) of cyclooxygenase-2 gene does not predict the risk of recurrence of ischemic events in coronary patients: results of a 7-year prospective study.

OBJECTIVES: The -765G>C variation (rs20417 SNP) in the promoter of cyclooxygenase-2 (COX-2) gene has been demonstrated to lower COX-2 enzyme activity in the vasculature, thus affecting atherosclerotic plaque growth and stability. Therefore, this genetic variant may be a candidate influencing the residual risk. METHODS: In 285 coronary patients the incidence of major adverse cardiovascular events (MACEs), defined as a composite of cardiovascular deaths, non-fatal myocardial infarction and stroke, unstable angina and revascularization procedures, was monitored for a median of 7.8 years. The genotypes were obtained in 231 patients (81%) by PCR amplification and FAU I digestion. RESULTS: 89 MACEs (38.5%) were recorded during the follow-up in genotyped patients. Their incidence was not different in patients with GC or CC when compared with those with GG genotype (46.2 vs. 35.5% respectively; p = 0.14). Kaplan-Meyer analysis did not demonstrate any influence of COX-2 genotypes on the event-free survival time (log-rank p = 0.55). After controlling for confounders, the -765G>C carrier status was not associated with significant variation in the risk of MACE or its individual components. CONCLUSIONS: These results suggest that the functional G-765C variant in the COX-2 gene is not a significant predictor of the recurrence of ischemic events in coronary patients.