Pathogenicity of Sirococcus tsugae on major coniferous tree species of Belgian forest

peer reviewedTo evaluate the potential impact of Sirococcus tsugae on Belgian coniferous forest, a pathogenicity test was conducted through wound inoculation of two-year-old seedlings of different tree species. Picea abies, Pseudotsuga menziesii, Pinus sylvestris, Larix x eurolepsis as well as Tsuga heterophylla and Cedrus atlantica were inoculated with an isolate of S. tsugae collected from the only known infected site in Belgium. The tested strain proved to be highly pathogenic towards seedlings not only of two known host species of the disease (T. heterophylla and C. atlantica) but also of L. x eurolepsis. This result highlights the risk that a possible emergence of S. tsugae might represent for some important forest tree species, including species currently not known as hosts of the disease. However, as the two main coniferous tree species in Belgium (P. abies and P. sylvestris) did not appear sensitive to S. tsugae, the potential impact of the pathogen on the Belgian forest is limited

Electrochemical Detection of Penicillin G Using Molecularly Imprinted Conductive Co-Polymer Sensor

Antibiotics are increasingly used to treat certain bacteria that are harmful to humans. However, their inadequate or excessive use can lead to the proliferation of certain more resistant strains, which ultimately reduces their effectiveness. To counter this, it is essential to limit the amount of antibiotics ingested, particularly through animal food, if the animals themselves have received antibiotic treatment. In the case of milk, it is necessary to be able to detect quantities of antibiotics in the range of a few parts per billion. A sensor has therefore been developed for this purpose. The sensitive layer that we propose to use in this study, is based on a molecularly imprinted conductive polymer (MICP) that allows a very specific interaction and have been integrated into electrochemical detection approaches by polymerization on electrodes. The sensor is based on the measurement of the variation in conductivity of a sensitive layer deposited between two electrodes, which is influenced by the presence of the antibiotic. Although it seems possible to further improve the performance of these sensors, their use in this field seems very promising considering the obtained results

Electrochemical Detection of Penicillin G Using Molecularly Imprinted Conductive Co-Polymer Sensor

Antibiotics are increasingly used to treat certain bacteria that are harmful to humans. However, their inadequate or excessive use can lead to the proliferation of certain more resistant strains, which ultimately reduces their effectiveness. To counter this, it is essential to limit the amount of antibiotics ingested, particularly through animal food, if the animals themselves have received antibiotic treatment. In the case of milk, it is necessary to be able to detect quantities of antibiotics in the range of a few parts per billion. A sensor has therefore been developed for this purpose. The sensitive layer that we propose to use in this study, is based on a molecularly imprinted conductive polymer (MICP) that allows a very specific interaction and have been integrated into electrochemical detection approaches by polymerization on electrodes. The sensor is based on the measurement of the variation in conductivity of a sensitive layer deposited between two electrodes, which is influenced by the presence of the antibiotic. Although it seems possible to further improve the performance of these sensors, their use in this field seems very promising considering the obtained results

Development of a Molecularly Imprinted Sensing Material for Antibiotics Detection

info:eu-repo/semantics/publishe

Discussion concernant l'exclusion des ministres de tout culte et les nobles de toutes les fonctions publiques, civiles et militaires, lors de la séance du 15 thermidor an II (2 août 1794)

Gaston Raymond, Monmayou Hugues Guillaume Bernard Joseph, Turreau de Linières Louis, Clauzel Jean-Baptiste, Delacroix de Contaut Charles, Barrère de Vieuzac Bertrand, Charlier Louis Joseph, Fréron Louis Marie Stanislas. Discussion concernant l'exclusion des ministres de tout culte et les nobles de toutes les fonctions publiques, civiles et militaires, lors de la séance du 15 thermidor an II (2 août 1794). In: Archives Parlementaires de 1787 à 1860 - Première série (1787-1799) Tome XCIV - Du 13 thermidor au 25 thermidor an II (31 juillet au 12 août 1794) Paris : Librairie Administrative P. Dupont, 1985. pp. 75-76

Intervention du représentant Le Bon sur les accusations portées contre lui et débat avec les représentants, lors de la séance du 15 thermidor an II (2 août 1794)

Guffroy Armand Benoît Joseph, Charlier Louis Joseph, Du Bouchet Pierre, Rovère de Fontvielle Joseph, marquis de, Monmayou Hugues Guillaume Bernard Joseph, Legendre Louis, Clauzel Jean-Baptiste, Delacroix de Contaut Charles, Turreau de Linières Louis, Raffron de Trouillet Nicolas, Poultier d'Elmotte François Martin, Bourdon François-Louis, Le Bon Joseph. Intervention du représentant Le Bon sur les accusations portées contre lui et débat avec les représentants, lors de la séance du 15 thermidor an II (2 août 1794). In: Archives Parlementaires de 1787 à 1860 - Première série (1787-1799) Tome XCIV - Du 13 thermidor au 25 thermidor an II (31 juillet au 12 août 1794) Paris : Librairie Administrative P. Dupont, 1985. pp. 62-64

Antimicrobial for 7 or 14 Days for Febrile Urinary Tract Infection in Men: A Multicenter Noninferiority Double-Blind, Placebo-Controlled, Randomized Clinical Trial

International audienceThe optimal duration of antimicrobial therapy for urinary tract infections (UTIs) in men remains controversial. Methods To compare 7 days to 14 days of total antibiotic treatment for febrile UTIs in men, this multicenter randomized, double-blind. placebo-controlled noninferiority trial enrolled 282 men from 27 centers in France. Men were eligible if they had a febrile UTI and urine culture showing a single uropathogen. Participants were treated with ofloxacin or a third-generation cephalosporin at day 1, then randomized at day 3–4 to either continue ofloxacin for 14 days total treatment, or for 7 days followed by placebo until day 14. The primary endpoint was treatment success, defined as a negative urine culture and the absence of fever and of subsequent antibiotic treatment between the end of treatment and 6 weeks after day 1. Secondary endpoints included recurrent UTI within weeks 6 and 12 after day 1, rectal carriage of antimicrobial-resistant Enterobacterales, and drug-related events. Results Two hundred forty participants were randomly assigned to receive antibiotic therapy for 7 days (115 participants) or 14 days (125 participants). In the intention-to-treat analysis, treatment success occurred in 64 participants (55.7%) in the 7-day group and in 97 participants (77.6%) in the 14-day group (risk difference, –21.9 [95% confidence interval, −33.3 to −10.1]), demonstrating inferiority. Adverse events during antibiotic therapy were reported in 4 participants in the 7-day arm and 7 in the 14-day arm. Rectal carriage of resistant Enterobacterales did not differ between both groups. Conclusions A treatment with ofloxacin for 7 days was inferior to 14 days for febrile UTI in men and should therefore not be recommended. Clinical Trials Registration NCT02424461; Eudra-CT: 2013-001647-32

Persistent headaches one year after bacterial meningitis: prevalence, determinants and impact on quality of life

International audienceBackground: Little is known on headaches long-term persistence after bacterial meningitis and on their impact on patients' quality of life.Methods: In an ancillary study of the French national prospective cohort of community-acquired bacterial meningitis in adults (COMBAT) conducted between February 2013 and July 2015, we collected self-reported headaches before, at onset, and 12 months (M12) after meningitis. Determinants of persistent headache (PH) at M12, their association with M12 quality of life (SF 12), depression (Center for Epidemiologic Studies Depression Scale) and neuro-functional disability were analysed.Results: Among the 277 alive patients at M12 87/274 (31.8%), 213/271 (78.6%) and 86/277 (31.0%) reported headaches before, at the onset, and at M12, respectively. In multivariate analysis, female sex (OR: 2.75 [1.54-4.90]; p < 0.001), pre-existing headaches before meningitis (OR: 2.38 [1.32-4.30]; p < 0.01), higher neutrophilic polynuclei percentage in the CSF of the initial lumbar puncture (OR: 1.02 [1.00-1.04]; p < 0.05), and brain abscess during the initial hospitalisation (OR: 8.32 [1.97-35.16]; p < 0.01) were associated with M12 persistent headaches. Neither the responsible microorganism, nor the corticoids use were associated with M12 persistent headaches. M12 neuro-functional disability (altered Glasgow Outcome Scale; p < 0.01), M12 physical handicap (altered modified Rankin score; p < 0.001), M12 depressive symptoms (p < 0.0001), and M12 altered physical (p < 0.05) and mental (p < 0.0001) qualities of life were associated with M12 headaches.Conclusion: Persistent headaches are frequent one year after meningitis and are associated with quality of life alteration