Project description:We report the miRNA expression in each CD34+ cells and their exosomes in mobilized peripheral blood in aged, young, and aged/young samples cocultured in transwell. Restored samples refer to aged MPB co-cultured with young MPB in the transwell culture.
Project description:We report the gene expression changes in mobilized peripheral blood in aged, young, and aged/young samples cocultured in transwell. Restored samples refer to aged MPB co-cultured with young MPB in the transwell culture
Project description:We use RNA-sequencing to measure global transcription in uteri of young and aged (~1yr old) C57BL/6 females at day 3.5 (E3.5) of pregnancy, and of the decidual part of E11.5 placentas developed in young and aged (~1yr old) females. We report dys-regulation of gene expression in the E3.5 uteri and E11.5 deciduae of aged mice. We compare the transcriptome of young and aged E11.5 deciduae with that of young deciduae from E9.5-E12.5 of pregnancy, and report that aged E11.5 deciduae are developmentally retarded in comparison to young deciduae.
Project description:Comparison of the gene expression profiles of adult human brain samples from frontal cortical regions, including samples from young, middle aged, normal aged, and AlzheimerM-bM-^@M-^Ys disease (AD) brains. Comparison of 12 young (<40yr), 9 middle aged (40-70yr), 16 normal aged (70-94yr), and 4 extremely aged (95-106yr)
Project description:To investigate molecular differences between HSPCs from young and aged donors, we performed 10x Single Cell Multiome on bone marrow HSPCs from Young, Middle Aged, and Older Aged donors.
Project description:Recent studies show that acute injury to non-aged podocytes induces many similarities to healthy aged podocytes, such as decreased lifespan and health-span. Like healthy aged podocytes, injury to young mouse and human podocytes can induce a senescent phenotype. This begs the question if injury to young podocytes phenocopies a healthy middle-aged podocyte, and if the pathways underlying senescence and other injury responses overlap between injured young podocytes and healthy middle-aged podocytes. To address this knowledge gap we induced hypertension, a major cause of chronic kidney disease, in young mice (4m of age~20-year-old human) and in middle-aged mice (18m of age, ~55+ year old human) with deoxycorticosterone and high salt (DOCA) and compared outcomes to non-hypertensive healthy middle-aged mice. In both healthy middle-aged mice and in young mice with hypertension, the increase in age-related senescent genes p16 and p19, along with the stress-related senescent genes p21 and p53 were similar. Bulk RNA-sequencing of podocytes showed that the senescent associated secretory phenotype and individual genes from several aging gene sets were also similar between middle-aged mice and young mice with hypertension. Of the highest enriched Hallmark pathways in middle-aged podocytes, 95% were also enriched in young mice treated with DOCA. Gene set enrichment analysis of podocytes showed that 36 genes overlapped between middle-aged mice, and young and middle-aged mice given DOCA, while 119 genes identified were “DOCA-specific”. These results suggest that hypertension in young mice induces podocyte injury and an aging/senescent phenotype that is similar to the one of podocytes from healthy middle-aged mice.
Project description:To study the protective effects of preoperative fasting against renal ischemia-reperfusion injury, young-lean as well as aged overweight mice were subjected to three days of fasting or ad libitum food consumption, and gene expressions in kidneys of male mice were analyzed 19 samples (5 young control, 4 young fasted, 5 aged control, 5 aged fasted), each from individual mice
Project description:In order to elucidate the contribute of the pulmonary vasculature to lung fibrosis, we injured young and aged mice with bleomycine, to create a model of resolving versus persistent lung fibrosis. The animals were sacrificed 30 days after the injury (time point in which we observed a divergent resolving vs persistent lung fibrosis in young vs aged mice).