Background: Particulate matter pollution has become a growing health concern over the past few decades globally. The problem is especially evident in China, where particulate matter levels prior to 2013 are publically unavailable. We conducted a systematic review of scientific literature that reported fine particulate matter (PM2.5) concentrations in different regions of China from 2005 to 2016. Methods: We searched for English articles in PubMed and Embase and for Chinese articles in the China National Knowledge Infrastructure (CNKI). We evaluated the studies overall and categorized the collected data into six geographical regions and three economic regions. Results: The mean (SD) PM2.5 concentration, weighted by the number of sampling days, was 60.64 (33.27) μg/m3 for all geographic regions and 71.99 (30.20) μg/m3 for all economic regions. A one-way ANOVA shows statistically significant differences in PM2.5 concentrations between the various geographic regions (F = 14.91, p < 0.0001) and the three economic regions (F = 4.55, p = 0.01). Conclusions: This review identifies quantifiable differences in fine particulate matter concentrations across regions of China. The highest levels of fine particulate matter were found in the northern and northwestern regions and especially Beijing. The high percentage of data points exceeding current federal regulation standards suggests that fine particulate matter pollution remains a huge problem for China. As pre-2013 emissions data remain largely unavailable, we hope that the data aggregated from this systematic review can be incorporated into current and future models for more accurate historical PM2.5 estimates.
CTRP9 levels are elevated in obesity and significantly decrease following weight loss surgery. Our data suggest that CTRP9 may play a compensatory role in obesity, similar to that of insulin, and is down-regulated following weight loss surgery.
Objective. To seek the improvement of rehabilitation nursing intervention on dysphagia and quality of life of patients with esophageal cancer undergoing radiotherapy. Methods. A total of 109 patients with esophageal cancer undergoing radiotherapy were selected as research objects. According to the random number table, they were separated into the control group (CG) and intervention group (IG), with 45 cases in CG and 64 cases in IG. In CG, patients were given routine nursing intervention, while those in IG were given rehabilitation nursing intervention. After intervention, the degree of acute radiation injury and the improvement of swallowing function were observed to compare the self-nursing ability, quality of life, and incidence of complications between the two groups. Results. The degree of injury in CG was heavier than that in IG. The improvement of swallowing function in IG was better than that in CG. The scores of self-nursing ability and life quality in IG were higher than those in CG, with statistically significant differences (
p
<
0.05
). The incidence of complications in IG was obviously lower than that in CG (
p
<
0.05
). Conclusion. Rehabilitation nursing intervention can ameliorate dysphagia, improve the quality of life, and reduce the incidence of complications for patients with esophageal cancer undergoing radiotherapy. It is worthy of clinical application.
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