Search

Your search keyword '"H. Biessy"' showing total 6 results
Start Over Author "H. Biessy"
6 results on '"H. Biessy"'

1. Impact of the introduction of a nucleic acid amplification test for Clostridium difficile diagnosis on stool rejection policies

Author

J. Goret, J. Blanchi, P. Floch, O. Peuchant, D. Chrisment, R. Sanchez, H. Biessy, R. Lemarié, D. Leyssene, B. Loutfi, S. Mimouni, T. Flao, C. Bébéar, and F. Mégraud

Subjects
C. difficile, Diagnosis, Impact, Molecular, Algorithm, NAAT, Diseases of the digestive system. Gastroenterology, RC799-869
Abstract

Abstract Background The change from non-molecular to nucleic acid amplification tests (NAATs) is known to increase the detection of Clostridium difficile infection (CDI); however, the impact on stool rejection policies in clinical laboratories is unclear. The current guidelines have reinforced the importance of respecting strict conditions for performing tests on stool samples for CDI diagnosis. The purpose of this study was to estimate whether the implementation of molecular tests has resulted in changes in stool rejection policies between clinical laboratories that introduced NAATs and those that did not. Results A survey was conducted to evaluate the change in the number of stool samples rejected and the rejection criteria among 12 hospital laboratories in southwestern France before and after the switch from non-molecular tests to NAATs using retrospective data from June 1 till September 30, 2013 and the same period 2014. Four laboratories introduced NAATs as a second or third step in the process. A total of 1378 and 1297 stools samples were collected in 2013 and 2014, respectively. The mean number of rejected stool samples significantly increased (p

Published
2018
Full Text
View/download PDF

2. MOESM2 of Impact of the introduction of a nucleic acid amplification test for Clostridium difficile diagnosis on stool rejection policies

Author

J. Goret, J. Blanchi, P. Floch, O. Peuchant, D. Chrisment, R. Sanchez, H. Biessy, R. LemariĂŠ, D. Leyssene, B. Loutfi, S. Mimouni, T. Flao, C. BĂŠbĂŠar, and F. MĂŠgraud

Abstract

Additional file 2: Table S2. Change in the stool rejection policy according to the laboratories between 2013 and 2014. Data are the number of laboratories that adopted the requested criteria for performing tests among the four laboratories that introduced nucleic acid amplification tests (NAATs) and the five that did not introduce NAATs, between the studied periods.

Published
2018
Full Text
View/download PDF

3. Comparison of standardised dietary folate intake across ten countries participating in the European Prospective Investigation into Cancer and Nutrition

Author

Park, J.Y. Nicolas, G. Freisling, H. Biessy, C. Scalbert, A. Romieu, I. Chajès, V. Chuang, S.-C. Ericson, U. Wallström, P. Ros, M.M. Peeters, P.H.M. Mattiello, A. Palli, D. María Huerta, J. Amiano, P. Halkjær, J. Dahm, C.C. Trichopoulou, A. Orfanos, P. Teucher, B. Feller, S. Skeie, G. Engeset, D. Boutron-Ruault, M.-C. Clavel-Chapelon, F. Crowe, F. Khaw, K.-T. Vineis, P. Slimani, N.

Abstract

Folate plays an important role in the synthesis and methylation of DNA as a cofactor in one-carbon metabolism. Inadequate folate intake has been linked to adverse health events. However, comparable information on dietary folate intake across European countries has never been reported. The objective of the present study was to describe the dietary folate intake and its food sources in ten countries in the European Prospective Investigation into Cancer and Nutrition (EPIC) study. A cross-sectional analysis was conducted in 36034 participants (aged 35-74 years) who completed a single 24h dietary recall using a computerised interview software program, EPIC-Soft® (International Agency for Research on Cancer, Lyon). Dietary folate intake was estimated using the standardised EPIC Nutrient DataBase, adjusted for age, energy intake, weight and height and weighted by season and day of recall. Adjusted mean dietary folate intake in most centres ranged from 250 to 350μg/d in men and 200 to 300μg/d in women. Folate intake tended to be lower among current smokers and heavier alcohol drinkers and to increase with educational level, especially in women. Supplement users (any types) were likely to report higher dietary folate intake in most centres. Vegetables, cereals and fruits, nuts and seeds were the main contributors to folate intake. Nonetheless, the type and pattern of consumption of these main food items varied across the centres. These first comparisons of standardised dietary folate intakes across different European populations show moderate regional differences (except the UK health conscious group), and variation by sex, educational level, smoking and alcohol-drinking status, and supplement use. © 2011 The Authors.

Published
2012

4. Detection with a monoclonal antibody of a polysaccharide antigen, excreted in the urine, in the schistosomiasis intercalatum focus of Edea (Cameroon)

Author

C, Ripert, P, Vincendeau, F, Macaigne, M, Appriou, H, Biessy, J, Tribouley, J, Tribouley-Duret, and T, Garnier

Subjects
Adult, Male, Adolescent, Antibodies, Helminth, Antibodies, Monoclonal, Fluorescent Antibody Technique, Hemagglutination Tests, Middle Aged, Polysaccharides, Antigens, Helminth, Prevalence, Animals, Humans, Schistosoma, Schistosomiasis, Female, Cameroon, Child
Abstract

The detection in the urine specimens of a sample of the inhabitants of Edea of a polysaccharide antigen characteristic for the genus Schistosoma, with monoclonal antibody by means of the inhibition of a passive haemagglutination test, shows that this technique is very sensitive for measuring prevalence of schistosomiasis due to S. intercalatum. In Edea, looking for eggs in stool specimens gives a low prevalence rate of the disease because of the low parasitic load. The prevalence by age, according to the voiding of eggs, is evoluting parallel to the excretion of the antigen.

Published
1990

5. Impact of the introduction of a nucleic acid amplification test for Clostridium difficile diagnosis on stool rejection policies.

Author

Goret J, Blanchi J, Floch P, Peuchant O, Chrisment D, Sanchez R, Biessy H, Lemarié R, Leyssene D, Loutfi B, Mimouni S, Flao T, Bébéar C, and Mégraud F

Abstract

Background: The change from non-molecular to nucleic acid amplification tests (NAATs) is known to increase the detection of Clostridium difficile infection (CDI); however, the impact on stool rejection policies in clinical laboratories is unclear. The current guidelines have reinforced the importance of respecting strict conditions for performing tests on stool samples for CDI diagnosis. The purpose of this study was to estimate whether the implementation of molecular tests has resulted in changes in stool rejection policies between clinical laboratories that introduced NAATs and those that did not., Results: A survey was conducted to evaluate the change in the number of stool samples rejected and the rejection criteria among 12 hospital laboratories in southwestern France before and after the switch from non-molecular tests to NAATs using retrospective data from June 1 till September 30, 2013 and the same period 2014. Four laboratories introduced NAATs as a second or third step in the process. A total of 1378 and 1297 stools samples were collected in 2013 and 2014, respectively. The mean number of rejected stool samples significantly increased (p < 0.001, Chi square test), with a total of 99 (7.1%) and 147 (11.3%) specimens rejected in 2013 and 2014, respectively. Notably, these laboratories had more stringent criteria and were no longer testing the stool samples of patients with CDI-positive results within 7 days. In contrast, there was a significant decrease in the rate of rejected stool samples (p < 0.001, Chi square test) in the five laboratories that did not adopt NAATs and a less stringent stool rejection policy., Conclusion: Nucleic acid amplification test implementation improved compliance with recommended stool rejection policies. Laboratories should follow the recommended laboratory algorithm for the CDI diagnosis combined with the correct stool rejection policy.

Published
2018
Full Text
View/download PDF

6. Detection with a monoclonal antibody of a polysaccharide antigen, excreted in the urine, in the schistosomiasis intercalatum focus of Edea (Cameroon).

Author

Ripert C, Vincendeau P, Macaigne F, Appriou M, Biessy H, Tribouley J, Tribouley-Duret J, and Garnier T

Subjects
Adolescent, Adult, Animals, Antibodies, Helminth immunology, Cameroon epidemiology, Child, Female, Fluorescent Antibody Technique, Hemagglutination Tests, Humans, Male, Middle Aged, Prevalence, Schistosomiasis diagnosis, Schistosomiasis epidemiology, Antibodies, Monoclonal immunology, Antigens, Helminth urine, Polysaccharides urine, Schistosoma immunology, Schistosomiasis urine
Abstract

The detection in the urine specimens of a sample of the inhabitants of Edea of a polysaccharide antigen characteristic for the genus Schistosoma, with monoclonal antibody by means of the inhibition of a passive haemagglutination test, shows that this technique is very sensitive for measuring prevalence of schistosomiasis due to S. intercalatum. In Edea, looking for eggs in stool specimens gives a low prevalence rate of the disease because of the low parasitic load. The prevalence by age, according to the voiding of eggs, is evoluting parallel to the excretion of the antigen.

Published
1990

Catalog

Books, media, physical & digital resources
See catalog results