Project description:Using the highly sensitive miRNA microarray, we screened differentially-expressed miRNAs in colons of normal control (NC) rats, model control (MC) rats and herb-partitioned moxibustion (HPM) rats. We found 40 miRNAs differentially expressed in CD rats’ colons compared with the NC rats, and HPM significantly regulated 26 miRNAs in colon tissues compared with the MC group. Furthermore, the quantitative real-time polymerase chain reaction results showed that down-regulated miR-147 and miR-205 in CD rats’ colons were both significantly up-regulated by HPM, with 2.64- and 3.72-folds increased respectively, indicating that miR-147 and miR-205 are the target genes of HPM in treating CD rats.
Project description:Prostate of SD rats was injected with 0.1 ml 1% carrageenan to induce chronic nonbacterial prostatitis, and the control rats injected with sterile saline. Then, the cecal contents were collected for 16S rDNA sequencing.
Project description:Using the highly sensitive miRNA microarray, we screened differentially-expressed miRNAs in colons of normal control (NC) rats, model control (MC) rats and herb-partitioned moxibustion (HPM) rats. We found 40 miRNAs differentially expressed in CD rats’ colons compared with the NC rats, and HPM significantly regulated 26 miRNAs in colon tissues compared with the MC group. Furthermore, the quantitative real-time polymerase chain reaction results showed that down-regulated miR-147 and miR-205 in CD rats’ colons were both significantly up-regulated by HPM, with 2.64- and 3.72-folds increased respectively, indicating that miR-147 and miR-205 are the target genes of HPM in treating CD rats. In the study presented here, four samples from each group were used to screen the differentially-expressed miRNAs in colons of experimental CD rats and the target genes of HPM. Six colons from each group were further used to verify the target genes of HPM. Finally, miR-147 and miR-205 were experimentally validated to be target genes of HPM.
Project description:To explore the effects of gut microbiota of young (8 weeks) or old mice (18~20 months) on stroke, feces of young (Y1-Y9) and old mice (O6-O16) were collected and analyzed by 16s rRNA sequencing. Then stroke model was established on young mouse receive feces from old mouse (DOT1-15) and young mouse receive feces from young mouse (DYT1-15). 16s rRNA sequencing were also performed for those young mice received feces from young and old mice.
Project description:We report how high and low linear energy transfer (LET) radiation, microgravity, and elevated dietary iron affect colon microbiota (determined by 16S rDNA pyrosequencing) and colon function. Three independent experiments were conducted: 1) fractionated low LET γ radiation (137Cs, 3 Gy, RAD), high Fe diet (IRON) (650 mg/kg diet), and a combination of low LET γ radiation and high Fe diet (IRON+RAD) in male Sprague-Dawley rats; 2) high LET 38Si particle exposure (0.050 Gy), 1/6 G partial weight bearing (PWB), and a combination of high LET38Si particle exposure and PWB in female BalbC/ByJ mice; and 3) 13 d spaceflight in female C57BL/6 mice. For each experiment, the colon was resected and feces removed for microbial sequencing analysis on a Roche 454 Genome Sequencer FLX Titanium instrument (Microbiome Core Facility, Chapel Hill NC) using the GS FLX Titanium XLR70 sequencing reagents and protocols. Analysis of amplicon sequencing data was carried out using the QIIME pipeline. Low LET radiation, high iron diet, and spaceflight increased Bacteroidetes and decreased Firmicutes. Low LET radiation, high Fe diet, and spaceflight did not significantly affect diversity or richness, or elevate pathogenic genera. Spaceflight increased Clostridiales and decreased Lactobacillales, and similar trends were observed in the experiment using a ground-based model of microgravity, suggesting altered gravity may affect colonic microbiota. Microbiota characteriztion in these models is a first step in understanding the impact of the space environment on intestinal health.
Project description:To compare the similarities and differences in species diversity of the gut microbiota between the patients with melasma and healthy subjects. The feces were collected for 16S rRNA sequencing analysis of the gut microbiota.