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Expression data from lateral nasal gland of male B6, 129/Sv and Cyp2g1-null mice

ABSTRACT: In male Cyp2g1-null mice, the lateral nasal gland, one of the largest anterior glands in the nasal cavity, was found to be protected from acetaminophen toxicity. The goal of this study was to identify the genes that are involved in the mechanisms, especially those genes functional in drug metabolism, clearance and post-activation events.

ORGANISM(S): Mus musculus

PROVIDER: GSE26056 | GEO | 2011/04/01

SECONDARY ACCESSION(S): PRJNA135563

REPOSITORIES: GEO

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Project description:Nasal cavity is the main gateway for pathogen infection although it composed of many layers of defending barriers. Pathogens strongly willing to enter and infect from nasal cavity with the dominant form aerosol or respiratory droplets. However, the underlying mechanism of virus nasal infection and transmission are still unknown. Hence, a better understanding of this mechanism may provide insight into the pathogenesis of virus. In this study, IBDV was select as a model virus to study nasal infection and transmission for it could infect chicken from head (nasal) to tail (basal) and lead to massive destruction of bursal IgM+ B-lymphocytes. Initially, we found IBDV mostly entered and infected the interior of chicken’s nasal, where full of lymphoid tissue and easily for virus to transfer into blood. After passing nasal barriers, IBDV was subsequently transmit into blood and infected PBMCs. Following blood circulates, IBDV then infected bursal and hugely destroyed B-lymphocytes. However, the mechanism of how IBDV influenced the bursal cells, especially how virus destroyed B-lymphocytes were still unclear. With the help of single cells RNA sequence, we identified five vigorous clusters, including three immune cells types (B-cells: 64.70%, dendritic cells: 3.32% and T-cells: 6.33%) and two non-immune cell types (epithelial cells: 23.86% and fibroblast cells: 1.80% cells). Further analyses found that B-cells population were serious damaged, especially IgM+ B cells. However, the IgA+ B cells population hugely increased after IBDV infection. Interesting, we first demonstrated that basal cells and other non-immune cells in Bursa of Fabricius (BF) were the main target for IBDV infection and replication. Together, our study not only comprehensive elaborated the airborne IBDV and its transmission via intranasal route into the BF, but also explained its distribution in different immune and nonimmune cells and immunoglobulins rearrangement after immunosuppressive disorder on an age dependent infected organ.

Project description:BackgroundIn the recent years, the use of Doppler-echocardiography has become a standard non-invasive technique in the analysis of cardiac malformations in genetically modified mice. Therefore, normal values have to be established for the most commonly used inbred strains in whose genetic background those mutations are generated. Here we provide reference values for transthoracic echocardiography measurements in juvenile (3 weeks) and adult (8 weeks) 129/Sv mice.MethodsEchocardiographic measurements were performed using B-mode, M-mode and Doppler-mode in 15 juvenile (3 weeks) and 15 adult (8 weeks) mice, during isoflurane anesthesia. M-mode measurements variability of left ventricle (LV) was determined.ResultsSeveral echocardiographic measurements significantly differ between juvenile and adult mice. Most of these measurements are related with cardiac dimensions. All B-mode measurements were different between juveniles and adults (higher in the adults), except for fractional area change (FAC). Ejection fraction (EF) and fractional shortening (FS), calculated from M-mode parameters, do not differ between juvenile and adult mice. Stroke volume (SV) and cardiac output (CO) were significantly different between juvenile and adult mice. SV was 31.93 ± 8.67 ?l in juveniles vs 70.61 ± 24.66 ?l in adults, ? < 0.001. CO was 12.06 ± 4.05 ml/min in juveniles vs 29.71 ± 10.13 ml/min in adults, ? < 0.001. No difference was found in mitral valve (MV) and tricuspid valve (TV) related parameters between juvenile and adult mice. It was demonstrated that variability of M-mode measurements of LV is minimal.ConclusionsThis study suggests that differences in cardiac dimensions, as wells as in pulmonary and aorta outflow parameters, were found between juvenile and adult mice. However, mitral and tricuspid inflow parameters seem to be similar between 3 weeks and 8 weeks mice. The reference values established in this study would contribute as a basis to future studies in post-natal cardiovascular development and diagnosing cardiovascular disorders in genetically modified mouse mutant lines.

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Expression data from lateral nasal gland of male B6, 129/Sv and Cyp2g1-null mice

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