The Experts below are selected from a list of 9033 Experts worldwide ranked by ideXlab platform

Leif A. Isaksson - One of the best experts on this subject based on the ideXlab platform.

Claire Card - One of the best experts on this subject based on the ideXlab platform.

  • aortic rupture causing cardiac tamponade in a 24 day old friesian Colt with concurrent colonic chlamydiosis and balantidiasis
    Equine Veterinary Education, 2016
    Co-Authors: Diel M De Amorim, Kayla Nielsen, B Mckell, Yanyun Huang, Claire Card
    Abstract:

    Summary A 24-day-old Friesian Colt died suddenly and a physical examination the morning the foal died showed no abnormalities and serum IgG levels >8.0 g/l. Necropsy examination revealed haemopericardium and a 2 cm transverse tear at the root of the aorta. The foal was also found to have Chlamydophila spp. in the epithelium and Balantidium coli on the mucosal surface of the large colon. An aortic rupture is a novel finding in a foal, colonic Chlamydiosis has not been previously reported in horses and Balantidium coli has not been reported in equids in North America.

  • Aortic rupture causing cardiac tamponade in a 24‐day‐old Friesian Colt with concurrent colonic Chlamydiosis and Balantidiasis
    Equine Veterinary Education, 2015
    Co-Authors: M. Diel De Amorim, Kayla Nielsen, B Mckell, Yanyun Huang, Claire Card
    Abstract:

    Summary A 24-day-old Friesian Colt died suddenly and a physical examination the morning the foal died showed no abnormalities and serum IgG levels >8.0 g/l. Necropsy examination revealed haemopericardium and a 2 cm transverse tear at the root of the aorta. The foal was also found to have Chlamydophila spp. in the epithelium and Balantidium coli on the mucosal surface of the large colon. An aortic rupture is a novel finding in a foal, colonic Chlamydiosis has not been previously reported in horses and Balantidium coli has not been reported in equids in North America.

Jaroslav M Belotserkovsky - One of the best experts on this subject based on the ideXlab platform.

Anne-marie Pourcher - One of the best experts on this subject based on the ideXlab platform.

  • Free water surface constructed wetlands limit the dissemination of extended-spectrum beta-lactamase producing Escherichia coli in the natural environment
    Water Research, 2016
    Co-Authors: Anne-laure Vivant, Catherine Boutin, Stéphanie Prost-boucle, Sandrine Papias, Alain Hartmann, Géraldine Depret, Christine Ziebal, Sophie Le Roux, Anne-marie Pourcher
    Abstract:

    The fates of Escherichia coli and extended-spectrum beta-lactamase-producing E. coli (ESBL E. Colt) were studied over a period of one year in a free water surface constructed wetland (FWS CW) with a succession of open water zones and vegetation ponds (Typha or Phragmites), that received the effluent from a wastewater treatment plant. ESBL E. coli were detected and isolated from all sampling areas of the FWS CW throughout the study period. They represented 1 parts per thousand of the total E. Colt population regardless of the origin of samples. Two main factors affected the log removal of E. Colt and of ESBL E. coli: the season and the presence of vegetation. Between the inlet and the outlet of the FWS CW, the log removal of E. coli ranged from 1.5 in the warmer season (summer and fall) to 3.0 in the colder season (winter and spring). The concentrations of E. coli decreased significantly in the vegetated areas during the colder season, but increased in the warmer season, suggesting an effect of the plant growth stage on the survival of E. Colt. Among the 369 ESBL E. coli isolates collected during our study, 84% harbored the CTX-M-ESBL type and 553% carried bla genes on plasmid DNA. Furthermore, 93% of the ESBL E. Colt isolates were multidrug resistant but the proportion of resistant strains did not change significantly along the FWS CW. ESBL E. coli were characterized by MLST analysis using the 7 genes based Achtman Scheme. ESBL E. coli isolated from water, sediments, roots and feces of myocastors collected in the FWS CW and in the recipient river were genotypically related, suggesting persistence and circulation of the ESBL producing E. Colt throughout the FWS CW and in the receiving river. Overall, these observations show that FWS CW could be an efficient treatment for ESBL E. Colt disinfection of wastewater and could limit their dissemination in the aquatic environment.

Jae-hyeong Ko - One of the best experts on this subject based on the ideXlab platform.

  • Differential promoter usage of infA in response to cold shock in Escherichia coli.
    FEBS Letters, 2005
    Co-Authors: Jae-hyeong Ko
    Abstract:

    Initiation factor 1 (IF1) is an essential protein in Escherichia coli involved in the initiation step of protein synthesis. The protein level of IF1 increases when E. coli cells are subjected to cold shock, however, it remains unclear as to how this increase occurs. The infA gene encoding IF1 contains two promoters, the distal P1 and the proximal P2 promoter. In this study, we found that infA mRNA was greatly increased, and that this increase resulted from transcriptional activation of P1, not P2, during cold shock although stability of transcripts from both promoters concomitantly increased.