348 research outputs found

    Supplemental material for Gastrostomy tube placement via a laparotomic procedure in growing conventional piglets to perform multi-dose preclinical paediatric drug studies

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    Supplemental Material for Gastrostomy tube placement via a laparotomic procedure in growing conventional piglets to perform multi-dose preclinical paediatric drug studies by Joske Millecam, Thomas van Bergen, Mathias Devreese, Stijn Schauvliege, Ann Martens, Koen Chiers, Siska Croubels and Gunther Antonissen in Laboratory Animals</p

    Ceftiofur and cefquinome : the emergence and selection of antimicrobial resistance in the porcine gut microbiome

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    Dit proefschrift gaat in op het historische verwaarlozing van de gastro-intestinale uitscheiding en neveneffecten van antimicrobiële middelen, en benadrukt hun rol in het versnellen van antimicrobiële resistentie. Recent onderzoek benadrukte namelijk de significante impact van de opkomst en verspreiding van resistentie op de effectiviteit van antibiotica en de implicaties voor de humane en veterinaire geneeskunde, wat uiteindelijk aanleiding gaf tot het 'One Health' concept. Het Europees Geneesmiddelenbureau pleit nu dan ook voor het beoordelen van de verspreiding van antimicrobiële resistentie tijdens onderzoek naar antimicrobiële middelen

    Endectocide treatment of cattle as complementary tool for malaria control in Sub-Saharan Africa

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    This PhD primarily focused on determining an optimized dose of ML endectocides (via PK/PD studies) for indigenous Ethiopian zebu cattle for its use as new complementary malaria vector control tool. In sub-Saharan Africa (SSA), malaria elimination with current vector-control strategies is hindered by residual transmission. The residual transmission is mainly linked with the vector’s behavioral adaptation (outdoor biting and/or resting behavior) and insecticide resistance along with the abundance of zoophagic and anthropophagic vectors. Outdoor biting Anopheles mosquitoes tend to seek blood meals more from livestock mainly cattle as alternative blood meals source when humans are not accessible. Consequently, livestock blood meals contribute largely to vectors abundance and increased densities, even though animals are not a parasite reservoir for malaria disease. Hence, a complementary tool targeted to livestock, mainly cattle, is essential for the control of outdoor feeding zoophagic vectors to divert their blood meal source from toxic blood from animals. With this regard, mass treatment of cattle with an endectocide is a new approach. Animal species and breed difference have an impact on the pharmacokinetics(PK) of endectocides, thereby affecting or altering their optimal effects. In indigenous zebu cattle, PK data is scarce for macrocyclic lactone endectocides (ivermectin, doramectin and moxidectin). Therefore, For malaria vector control, an optimized ML endectocide dose was determined after the bioanalysis, PK-PD assessment of the ML endectocides in indigenous Ethiopian zebu cattle as described in this thesis. The effects of the sub-lethal concentrations on P. vivax parasite were also assessed
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