This paper reports that vasopressin is emetogenic in the house musk shrew Suncus murinus. Either intravenous or intracerebroventricular administration of vasopressin caused vomiting within a few minutes. The ED50 of intravenous vasopressin was as high as 4.67 microg/kg, whereas intracerebroventricularly injected vasopressin was effective at a low dose of 20 ng/brain. The emetogenic target of vasopressin may therefore be present in the central nervous system. We propose the Suncus as a useful animal for investigation of vasopressin-mediated emesis, including motion sickness.
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http://dx.doi.org/10.1254/jjp.89.324 | DOI Listing |
J Virol
January 2025
UMR Processus Infectieux en Milieu Insulaire Tropical, Université de La Réunion, Inserm, CNRS, IRD, Saint Denis de La Réunion, France.
Beyond the role of bats as natural host reservoirs of infectious agents, the impact of viral spillover from other animal species to bats has been neglected. Given the limited virus-host specificity of astroviruses (AstVs) and their propensity for cross-species transmission, we hypothesized that AstVs could be transmitted within animal communities (rodents, birds, and bats) and that native endemic bats may be exposed to viruses hosted by other species. We investigated the presence of AstV RNA in 3,796 biological samples collected in Reunion Island from ( = 3421), an endemic free-tailed bat species, and also from small terrestrial mammals and birds: ( = 146), ( = 74), ( = 36), ( = 99), and ( = 20).
View Article and Find Full Text PDFIntegr Zool
January 2025
Plague Unit, Institut Pasteur de Madagascar, Antananarivo, Madagascar.
Plague, a zoonotic disease caused by Yersinia pestis, remains a major public health threat in several parts of the world, including Madagascar. Factors underlying long-term persistence and emergence of the pathogen remain poorly understood. We implemented a longitudinal survey to provide insights into plague reservoir ecology within an endemic focus.
View Article and Find Full Text PDFPathogens
October 2024
Global Health Department, Pasteur Institute, 75015 Paris, France.
Plague is a zoonotic disease caused by , and it is endemic in Madagascar. The plague cycle involves wild and commensal rodents and their fleas; humans are an accidental host. Madagascar is the country where plague burden is the highest.
View Article and Find Full Text PDFVet Res
November 2024
Department of Epidemiology, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou, 510515, China.
Rosavirus is a newly discovered member of the family Picornaviridae that was initially detected in wild rodents and subsequently in children with diarrhoea. Nevertheless, there is a significant gap in our understanding of the geographical distribution, phylogenetic relationships, evolutionary patterns, and transmission of rosaviruses. To address these issues, we analysed 434 rodents and shrews from five different species that were collected in southern China.
View Article and Find Full Text PDFTrop Life Sci Res
October 2024
Laboratory of Climate-Smart Food Crop Production, Institute of Tropical Agriculture and Food Security (ITAFoS), Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia.
Frequent encounters with the greater bandicoot rats () following high rodent damage towards rice crops and lack of information on the species had encouraged this study to be conducted to test the relevance of using first- and second-generation rodenticide in a field efficacy test. This study also attempts to detect any sign of resistance of current rodent pest populations towards chlorophacinone (0.005%) and flucoumafen (0.
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