Project description:The rabbits ingest the mother's droppings at the nest. This behaviour contributes to the transmission of the maternal microbiota to its progeny, it is involved in the maturation of the digestive ecosystem of the rabbits and reduces mortality. In view of these observations, it is possible to assume that the digestive system is involved. To support this hypothesis, gene expression is measured using an expression chip. The aim is to detect over- or under-expressed genes under certain conditions and to link them in particular to immunity.
Project description:Microarray analysis of white adipose tissue (WAT) and bone marrow adipose tissue (BMAT) from 22-week-old or 13-week-old male New Zealand White rabbits. From both cohorts, BMAT was sampled from the distal tibia (dBMAT) and the radius and ulna (ruBMAT), while WAT was sampled from the inguinal (iWAT) and gonadal (gWAT) depots. From the 13-week-old cohort, BMAT was also sampled from the proximal tibia (pBMAT). Sufficient RNA could not be isolated from all tissues for all rabbits, so for some rabbits only a subset of tissues is included.
Project description:We report RNA-seq data obtained on dissected aorta and four heart valves from rabbits fed with chow diet (n=7), cholesterol-rich diet (n=6) or lard-rich diet (n=7). Rabbits that received cardiac irradiation combined with the cholesterol-rich diet were also included (n=7).
Project description:We found that mainstream cigarette smoking (4 cigarettes/day, 5 days/week for 2 weeks using Kentucky Research Cigarettes 3R4F) resulted in >20% decrease in the percentage of normal Paneth cell population in Atg16l1 T300A mice but showed minimal effect in wildtype littermate control mice, indicating that Atg16l1 T300A polymorphism confers sensitivity to cigarette smoking-induced Paneth cell damage. We performed cohousing experiments to test if Paneth cell phenotype is horizontally transmissible as is microbiota. Atg16l1 T300A and littermate controls that were exposed to cigarette smoking were used as microbiota donors, and these donor mice were exposed to smoking for 2 weeks prior to cohousing. Separate groups of Atg16l1 T300A and littermate controls that were not exposed to cigarette smoking were used as microbiota recipients. The microbiota recipients were co-housed with microbiota donors of the same genotype for 4 weeks, during this period the donors continued to be exposed to cigarette smoking. Cigarette smoking was performed using smoking chamber with the dosage and schedule as described above. At the end of the experiment, the fecal microbiota composition was analyzed by 16S rRNA sequencing.