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Biomedical subjects

F Sari

Publications and source records attributed to F Sari.

6 recordsLinked to original sources

Evaluation of the association between null genotypes of glutathione-S-transferases and Behcet's disease.

Glutathione S-transferases (GST) play an important role in oxidative stress related syndromes. An imbalance of the oxidant and antioxidant systems is important in the pathogenesis of Behcet's disease (BD). The objective of this study was to evaluate the association of null genotypes of GST-M1 and GST-T1 with BD since some preliminary molecular genetic data were recently published. Ninety-four Turkish BD patients (42 male, 52 female, 37.1+/-10.4 years) and 140 healthy volunteers (70 male, 70 female, 36.8+/-11.7 years) matched for age and gender with the patients as the control group were included in the study. Distributions of GST-M1 and GST-T1 genotypes were determined by multiplexed PCR using three sets of primers for GST-M1, GST-T1, and beta-globulin genes. There was no association between BD and the frequencies of GST-M1 and GST-T1 null genotypes when compared to controls by separate analysis. However, by cross and pooled combination analysis there was a significant association between the frequencies of pooled GSTs with one or both null genotypes in BD and controls. This is the first evidence that the association between the frequencies of GST-M1 and GST-T1 null genotypes and BD might be dependent on the interaction of multiple null allele polymorphisms rather than a single null allele of GST-M1 and GST-T1.

Adult↗

The French haemovigilance system.

Haemovigilance is a national system of surveillance and alarm, from blood collection to the follow-up of the recipients, gathering and analysing all untoward effects of blood transfusion in order to correct their cause and prevent recurrence. In France haemovigilance was created by law and notification of transfusion incidents is a legal obligation. The haemovigilance network associates local correspondents in each hospital and blood centre with regional co-ordinators and is centralised by the Agence Française du Sang. After 4 years the incident reporting rate is 2.3 per 1,000 allogeneic blood components transfused, justifying for example increased efforts in the prevention of bacteria-associated transfusion reactions, haemolytic transfusion reactions or vascular overload. However, haemovigilance still has to be strenghtened by improved information management or further progress in standardisation from one region to the other. The most important factor of success is collaboration between blood centres and hospitals. Haemovigilance clearly is the ultimate quality indicator of a transfusion service.

Blood Banks↗

[Transfusion incidents related to bacterial contamination: review of the literature and hemovigilance data. For the working group Bacterial incidents of French Blood Agency, scientific advice of Bacthem and the French hemovigilance network].

The impact of transfusion reactions related to bacterial contamination (TRBC) of labile blood products (LBP) was identified in France soon after the implementation of the haemovigilance system. The aims of our communication were: 1) to confront published data on TRBC with available French data; 2) to describe measures implemented in France to prevent TRBC. Bacterial contamination of whole blood at the collection stage is found in 0.6 to 3% of blood donations. Systematic bacteriological controls detect frequent contaminations of LBP that vary according to studies and the nature of the product. The incidence of clinical TRBC was only estimated in recipients with malignant diseases. Based on French haemovigilance data, the incidence was estimated to two per 100,000 delivered units. The measures taken were the diffusion of information and recommendations and the implementation of studies. In the framework of the Bacthem study (a national case-control study on LBP-related bacterial contamination), standardised diagnostic criteria are applied to suspected TRBC notified to the Centre National d'Hémovigilance. Expected results should allow us to estimate the incidence of TRBC in France and to determine the recipients or situations at risk more precisely, in order to target additional preventive measures. Preliminary results, 11 months after the beginning of the study, show the feasibility and the relevance of completing the surveillance with specific studies within the haemovigilance network.

Bacterial Infections↗