Parasitic infection improves metabolic homeostasis in "western diet"-induced obesity through the regulation of adipogenesis. However, the underlying mechanism is not yet fully understood. Using microarray analysis, this study investigated the long noncoding RNA (lncRNA) and messenger RNA (mRNA) profiles of subcutaneous adipose tissues from mice infected with Echinococcus granulosus protoscoleces. A total of 1052 mRNA (541 upregulated, 511 downregulated) and 220 lncRNA (126 upregulated, 94 downregulated) transcripts were differentially expressed (fold change ≥2, P < 0.05) in the infected subcutaneous adipose tissues. When compared with the control group, the infected mice showed a decrease in adipose tissue mass and a reduction in adipocyte size. Indirect calorimetry revealed the change in the energy metabolism after infection, characterized by a lower CO 2 production and O 2 consumption, a sharp decline in carbohydrate oxidation, and a slight increase in fat oxidation. Gene Ontology and Kyoto Encyclopedia of Genes and Genomes pathway analyses showed that the parasitic infection reprogrammed a complex metabolic network. Notably, "lipoxygenase" and "arginine and proline metabolism" pathways were significantly upregulated while "glycolysis," "tricarboxylic acid cycle," "de novo lipogenesis," and "lipid droplet" pathways were dramatically downregulated. In addition, several key lncRNAs were associated with insulin resistance and adipocyte differentiation. Overall, the present study suggested that E. granulosus infection could enhance lipolysis. Thus, our findings provide novel insights into parasite-mediated metabolic homeostasis, and into the mechanism of hypertrophic adipocytes in obesity.
Background: There is considerable debate about whether concomitant use of proton pump inhibitors (PPIs) should be recommended for patients who are prescribed clopidogrel after acute coronary syndrome. Most pharmacokinetic and pharmacodynamic studies in vivo were conducted using small sample sizes and were single centered, resulting in conflicting data. Hypothesis: PPIs may attenuate the antiplatelet effect of clopidogrel in vivo and lead to an increased risk of cardiovascular events. Methods: PubMed, the Cochrane Library, Embase, Web of Science, and China Biology Medicine Disc were searched. Randomized controlled trials that compared pharmacodynamic impacts of a PPI on the efficacy of clopidogrel in vivo were included. Two independent reviewers evaluated study quality and extracted data for meta-analysis. Results: We identified 8 eligible studies. Compared to clopidogrel treatment alone, patients who received both a PPI and clopidogrel had less of a decrease in the platelet reactivity index (weighted mean difference [WMD]: 8.18; 95% confidence interval [CI]: 6.81-9.56; P < 0.00001), less adenosine 5 -diphosphate-induced platelet aggregation inhibition (WMD: 7.28; 95% CI: 2.44-12.11; P = 0.003), higher P2Y12 reaction units (WMD: 40.58; 95% CI: 19.31-61.86; P = 0.0002), and higher risks of clopidogrel resistance (odds ratio [OR]: 2.49; 95% CI: 1.49-4.14; P = 0.0005). There were no significant differences, however, for the incidences of major adverse cardiovascular events between the 2 groups (OR: 1.07; 95% CI: 0.44-2.59; P = 0.88), and treatment with a PPI and clopidogrel significantly reduced the risk of adverse gastrointestinal events (OR: 0.16; 95% CI: 0.04-0.62; P = 0.008). Conclusions: Concomitant use of a PPI with clopidogrel attenuated the antiplatelet effect of clopidogrel, but may be clinically unimportant because there were no clinical differences in the risk for major adverse cardiovascular events.
The role of lower esophageal sphincter (LES) in laryngopharyngeal reflux is controversial. In this study, we used an animal model to investigate the association between LES dysfunction and reflux laryngitis. Twelve healthy New Zealand albino rabbits (2.5-3.5 kg) were utilized in this study. The animals were divided into two groups. Eight rabbits underwent total cardiomyectomy to induce reflux, and the remaining four rabbits underwent a control sham operation. A laryngoscopy and a 24-hour intra-esophageal pH-metry were performed prior to surgery and again 2 and 8 weeks postsurgery. After the final laryngoscopy, all animals were sacrificed to obtain histological results. Total cardiomyectomy significantly increased the reflux index, the duration of the longest reflux episode and the total number of episodes that occurred in 24 h postsurgery. No significant difference was observed in the reflux finding score (RFS) between preoperative and 2-week postoperative rabbits (P = 0.11). But there was a statistically significant change in the RFS before and 8 weeks after the induction of reflux from 4.6 ± 0.9 to 8.3 ± 3.6 (P = 0.02). Submucous gland hyperplasia and inflammation were significantly increased in the reflux group compared to the control group. The results of this study suggest that chronic lower esophageal sphincter dysfunction is associated with reflux laryngitis in rabbits.
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