Jalba B.A.,Spitalul Clinic De Urgenta Sfantul Pantelimon |
Casabalian D.,Spitalul Clinic De Urgenta Sfantul Pantelimon |
Marculescu M.,Spitalul Clinic De Urgenta Sfantul Pantelimon |
Ioana M.,Universitatea Of Medicina Si Farmacie Craiova |
And 2 more authors.
Annals of the Romanian Society for Cell Biology | Year: 2010
Purpose: To examine the role of an IGF-I gene promoter polymorphism in the prevalence of radiographic osteoarthritis (ROA), and study its interaction with the COL2A1 gene. Experimental Design: Individuals genotyped for IGF-I and COL2A1 gene polymorphisms were selected from a random sample derived from people who had presented to the Emergency Hospital "Professor Dr. Dimitrie Gerota" - Orthopaedics department from January 2009 and January 2010 Bucharest, Romania. The presence of ROA was defined as a Kellgren score of 2 or more in at least one of four joints (knee, hip, hand, and spine). Genotype specific odds ratios (OR) were adjusted for age, sex, body mass index, and bone mineral density using logistic regression. Interaction with the COL2A1 genotype was tested. Results: Overall, no association was found between the IGF-I polymorphism and ROA. In subjects aged 65 years or younger, the prevalence of ROA increased with the absence of the 192 base pair (bp) allele (p for trend = 0.03). Compared with homozygotes for the 192 bp allele, the prevalence of ROA was 1.4 times higher in heterozygotes (95% confidence interval, 1.0 to 1.8) and 1.9 times higher in noncarriers (1.1 to 3.3). There was evidence of interaction between the IGF-I and COL2A1 genes. Individuals with the risk genotype of both genes had an increased prevalence of ROA (OR 3.4 (1.1 to 10.7)). No effect was observed in subjects older than 65 years. Conclusions: Subjects with genetically determined low IGF-I expression (non-carriers of the 192 bp allele) may be at increased risk of ROA before the age of 65 years. Furthermore, an interaction between the IGF-I and COL2A1 genes is suggested.
Boujedidi H.,French Institute of Health and Medical Research |
Boujedidi H.,University Paris - Sud |
Bouchet-Delbos L.,French Institute of Health and Medical Research |
Bouchet-Delbos L.,University Paris - Sud |
And 16 more authors.
Alcoholism: Clinical and Experimental Research | Year: 2012
Background: Quantification of gene expression using reverse transcription-quantitative polymerase chain reaction (RT-qPCR) requires normalization to an endogenous reference gene termed housekeeping gene (HKG). Many of the commonly used HKGs are regulated and vary under experimental conditions and disease stages. Alcoholic liver disease (ALD) is associated with several different liver histological lesions that may modulate HKG expression. We investigated the variability of commonly used HGKs (18S, β-actin, glyceraldehyde-3-phosphate [GAPDH], and arginine/serine-rich splicing factor [SFRS4]) in the liver of patients with ALD. Methods: Fifty consecutive patients at different stages of ALD underwent liver biopsy. The stability of HKG was assessed according to liver histological lesions. Results: β-actin had the highest coefficient of dispersion (COD) (23.9). β-actin tended to decrease with steatosis and to increase with alcoholic hepatitis; β-actin also increased in patients with both alcoholic hepatitis and cirrhosis. GAPDH and SFRS4 COD were 2.8 and 2.1, respectively. GAPDH was decreased with steatosis and increased with alcoholic hepatitis and fibrosis. 18S had the lowest COD (1.4). Both 18S and SFRS4 levels were not significantly modified with respect to all alcohol-induced liver histological lesions. Conclusions: In patients with ALD, the most constantly expressed HKGs are 18S and SFRS4. These genes are appropriate reference genes for normalization of RT-qPCR in the liver of patients with ALD. The use of other HKGs such as β-actin or GAPDH would lead to misinterpretation of the results. © 2011 by the Research Society on Alcoholism.
Didilescu C.,Universitatea Of Medicina Si Farmacie Craiova |
Tanasescu M.,Institutul Of Pneumologie Marius Nasta
Pneumologia | Year: 2012
In the actual context of an increased TB endemia (notification rate of 90.5%ooo, meaning 21457 cases in 2010, but with a constant decreasing trend in the last 8 years), we wanted to see what is the share and structure of extra-respiratory tuberculosis in the period 2007-2010. In the interval 2007-2010 have been registered annually between 1252-1267 extra-respiratory TB cases. Extra-respiratory TB have been between 30% and 42,1% from all TB cases registered annually with the extra-pulmonary TB. In the descending order of cases recorded with TB extra respiratory in 2010, the first was extra-thoracic ganglionary TB (244 cases), followed by osteo-articulary (233) and those of meningo- encephalitis and CNS TB (133). Location of TB on the spine remains the most common form of skeletal TB, representing 62.2% (145 cases) of all osteo-articulary locations. The number of registered cases of pericardial effusions TB annually remains steady at 40-50 cases. The number still high of meningo encephalitis TB (severe prognosis, epidemiological severity) involves enhanced accountability measures in TB control of the territory. The collaboration between the pulmonologist and the body specialist constitutes compulsory condition of quality assistance in case of TB extra respiratory sites.
Patouraux S.,French Institute of Health and Medical Research |
Patouraux S.,University of Nice Sophia Antipolis |
Bonnafous S.,French Institute of Health and Medical Research |
Bonnafous S.,University of Nice Sophia Antipolis |
And 26 more authors.
PLoS ONE | Year: 2012
Background: Osteopontin (OPN) plays an important role in the progression of chronic liver diseases. We aimed to quantify the liver, adipose tissue and serum levels of OPN in heavy alcohol drinkers and to compare them with the histological severity of hepatic inflammation and fibrosis. Methodology/Principal Findings: OPN was evaluated in the serum of a retrospective and prospective group of 109 and 95 heavy alcohol drinkers, respectively, in the liver of 34 patients from the retrospective group, and in the liver and adipose tissue from an additional group of 38 heavy alcohol drinkers. Serum levels of OPN increased slightly with hepatic inflammation and progressively with the severity of hepatic fibrosis. Hepatic OPN expression correlated with hepatic inflammation, fibrosis, TGFβ expression, neutrophils accumulation and with the serum OPN level. Interestingly, adipose tissue OPN expression also correlated with hepatic fibrosis even after 7 days of alcohol abstinence. The elevated serum OPN level was an independent risk factor in estimating significant (F≥2) fibrosis in a model combining alkaline phosphatase, albumin, hemoglobin, OPN and FibroMeter® levels. OPN had an area under the receiving operator curve that estimated significant fibrosis of 0.89 and 0.88 in the retrospective and prospective groups, respectively. OPN, Hyaluronate (AUROC: 0.88), total Cytokeratin 18 (AUROC: 0.83) and FibroMeter® (AUROC: 0.90) estimated significance to the same extent in the retrospective group. Finally, the serum OPN levels also correlated with hepatic fibrosis and estimated significant (F≥2) fibrosis in 86 patients with chronic hepatitis C, which suggested that its elevated level could be a general response to chronic liver injury. Conclusion/Significance: OPN increased in the liver, adipose tissue and serum with liver fibrosis in alcoholic patients. Further, OPN is a new relevant biomarker for significant liver fibrosis. OPN could thus be an important actor in the pathogenesis of this chronic liver disease. © 2012 Patouraux et al.
Tanasescu M.,Institutul Of Pneumologie Marius Nasta |
Didilescu C.,Universitatea Of Medicina Si Farmacie Craiova |
Marica C.,Carol Davila University of Medicine and Pharmacy
Pneumologia | Year: 2013
Tuberculosis is still one of the diseases with a major medical and social impact, and in terms of early diagnosis (which would imply a fair treatment and established at the time), difficulties related to the delay bacilli isolation in culture, decreased susceptibility testing methods to antituberculosis drugs, lack of methods for differentiation of M. Tuberculosis complex germs of non-TB Mycobacteria, may have important clinical implications. Traditional testing of anti-TB drug susceptibility on solid Löwenstein-Jensen medium (gold standard) or liquid media can only be performed using grown samples. Determining the time it takes up to 42 days on solid media and 12 days for liquid media. For MDR/XDR TB cases it is absolutely essential to reduce the detection time. In these cases rapid diagnostic methods prove their usefulness. Automatic testing in liquid medium, molecular hybridization methods are currently recommended by the current WHO guidelines. Rapid diagnosis of MDR-TB is extremely useful for the early establishment of an effective treatment tailored more accurately on the spectrum of sensitivity of the resistant strain (thus reducing the risk of developing additional resistance to other drugs) and control the spread of these strains. Genetic diagnostic methods, approved and recommended by the WHO, can reduce the time of diagnosis of TB case and, importantly, the case of MDR-TB. They do not replace the current standard diagnostic methods and resistance profile, but complete them in selected cases.