Project description:Gene expression of hippocampal brain in Trpc4 deletion mice was investigated We used microarrays to detail the global programme of gene expression underlying brain hippocampus of Trpc4 mice at postnatal day 56.
Project description:MS is a primary demyelinating disease of the central nervous system. The cause is unknown and pathological hallmarks include plaque formation with immune cell infiltration. A microarray analysis of characterized brain tissue samples from three MS cases and a non-neurological control sample was performed containing over 22,000 genes. Real-time PCR analyses of 7 MS samples and 3 non-neurological control brain samples confirmed changes in expression in the chosen genes of interest. Keywords: Disease state analysis
Project description:To assess in order to assess potential disparities in gene expression due to developmental differences we performed a comparison between hippocampus and heart tissues from rat and mouse pup (one week old) and adult (10 week old) animals. Using heart and hippocampal tissue from mouse (C57BL/6) and rat (Sprague Dawley) we investigate via microarrays, gene expression divergence at the tissue level between a Brain and a Non-brain tissue. We also investigated any developement difference in gene expression between pups and adult animals. For the pups samples we used 3 biological replicates and for the adult samples we used 2 biological replicates with 2 technical replicates for each.
Project description:To assess in order to assess potential disparities in gene expression due to developmental differences we performed a comparison between hippocampus and heart tissues from rat and mouse pup (one week old) and adult (10 week old) animals. Using heart and hippocampal tissue from mouse (C57BL/6) and rat (Sprague Dawley) we investigate via microarrays, gene expression divergence at the tissue level between a Brain and a Non-brain tissue. We also investigated any developement difference in gene expression between pups and adult animals. For the pups samples we used 3 biological replicates and for the adult samples we used 2 biological replicates with 2 technical replicates for each.
Project description:Purpose: Next-generation sequencing (NGS) technology was used to map expression profile of hippocampal tissue in mouse model of Systemic Lupus Erythematosus (SLE). Methods: Total RNA was extracted from total hippocampal tissue using NucleoSpinRNA and mRNA libraries were generated using the Illumina TruSeq Sample Preparation kit. Single-end 100bp mRNA sequencing was performed on Illumina NextSeq500 platform. Quality of sequencing was assessed using FastQC software. Raw reads in fastq format were collected and aligned to the mouse genome (mm10 version) using STAR 2.6 algorithm. Gene quantification was performed using HTSeq and differential expression analysis was performed using edgeR package. Results: We defined hippocampal-specific molecular signatures of the murine lupus transcriptome. Conclusions: By the use of the mouse hippocampal-specific transcriptome and through characterization of hippocampal neurogenesis, we showed that inflammatory mediators induce neuropsychiatric changes in SLE as an early event via the disruption of hippocampal neurogenesis. These data underscore the role of brain inflammation in the pathogenesis of early disease and support the use of immunosuppressants for the management of diffuse NPSLE.
Project description:We analyzed the changes in the brain tissue of Apis mellifera ligustica at the molecular level by sequencing after using fluvalinate. We found that the differentially expressed miRNAs (DEM) may be involved in hippocampal cell apoptosis and damage to memory functions. This result may be related to behaviors observed after the administration of this medication, such as a lack of homing at night and behavioral disturbances. Overall, our results provide new information about the molecular mechanisms and pathways of fluvalinate action in the brain tissue of Apis mellifera ligustica.
Project description:Therapeutic treatment options for central nervous system diseases are greatly limited by the blood-brain barrier (BBB). Focused ultrasound (FUS), in conjunction with circulating microbubbles, can be used to induce a targeted and transient increase in BBB permeability, providing a unique approach for the delivery of drugs from the systemic circulation into the brain. While preclinical research has demonstrated the utility of FUS, there remains a large gap in our knowledge regarding the impact of sonication on BBB gene expression. This work is focused on investigating the transcriptional changes in dorsal hippocampal rat microvessels in the acute stages following sonication. Microarray analysis of microvessels was performed at 6 and 24 hrs post-FUS. Microvessels were collected by laser capture microdissection. Relative gene expression was compared between samples collected from the sonicated hemisphere and samples collected from the hemisphere contralateral to sonication, as well as samples collected from rats not undergoing the FUS procedure.