Project description:Diabetic rats changes gene exprssion in Shenqi Jiangtang Granule-treated rats kidney Diabetic nephropathy (DN) is a major microvascular complication of diabetes. In addition to moderating hyperglycemia, Shenqi Jiangtang Granule (SJG) had a beneficial effect on kidney function in a clinical trial. However, the mechanism involved remains unclear. This study was conducted to identify the underlying molecular mechanisms. A diabetic rat model was generated by using a high-fat diet and streptozotocin (STZ) injection. Then, rats were given SJG at dosages of 800 mg/kg/d by gavage for 8 weeks.
Project description:Diabetic rats changes gene exprssion in Qishen Yiqi Dripping Pill-treated rats kidney Diabetic nephropathy (DN) is a severe microvascular complication of diabetes. Qishen Yiqi Dripping Pill (QYDP) has been reported to be a renal protective drug. However, the mechanisms remain not certain. This study was performed to investigate the mechanisms of the extract. In this study, Sprague Dawley SD rats were fed with a high-fat diet, and injected with streptozotocin (STZ) to generate a diabetic model. Diabetic rats were administered QYDP.
Project description:Gender has strong impact on kidney performance. Female gender tends to be renal protective. PKD/Mhm is rat model for human polycystic kidney disease (PKD) caused by a mutation in gene Anks6. PKD progresses faster in male rats compared with females. We used microarrays to detect gender-dependent gene expression in kidney of 36d old PKD/Mhm rats. Keywords: gender, genotype
Project description:Global expression profiling of epileptogenesis has been confounded by variability across laboratories, epilepsy models, tissue sampled and experimental platforms, with the result that very few genes demonstrate consistent expression changes. The present study minimizes these confounds by combining Affymetrix microarray datasets from seven laboratories, using three status epilepticus (SE) models of epilepsy in rats (pilocarpine, kainate, self-sustained SE or SSSE) and the rat kindling model. Total RNA was harvested from laser-captured dentate granule cells from 6 rats at three times during the early-to-mid latent phase that precedes epilepsy symptoms in the SE models (1, 3 and 10 days after SE), or 24 hr after the first stage 2, stage 4 and stage 5 seizure in the kindling model. Each epilepsy model was studied in two independent laboratories except SSSE. The initial goals of this study were to a) identify model-independent transcriptional changes in dentate granule cells that could point to novel intervention targets for epileptogenesis, b) characterize the basal transcriptional profile of dentate granule cells, and c) identify genes that have highly variable expression. Each experimental group consists of 6 rats (biological replicates) from one laboratory at a single time point, except for the SSSE group (6 at day 1 after SSSE, 5 controls and at day 3 after SSSE, 4 at day 10). Thus granule cells were harvested from 164 rats.
Project description:Impaired post-ischemic angiogenesis in rats with chronic kidney disease: underlying changes in ischemia-induced early regulation of gene expression We investigated potential molecular mechanisms underlying impaired angiogenesis by a systematic comparison of early gene expression in response to ischemia in rats with or without CKD