The association between the efficacy and safety of dezocine injection and morphine injection for persistence of pain in patients with cancer had yielded controversial results. Therefore, we conduct a meta-analysis of existing observational published studies to assess the relationship between them among Chinese. We conducted a comprehensive research from the databases of PubMed, Web of Science, and Wan Fang Med Online for the related studies up to October 2016. Summary odds ratio (OR) with 95% confidence interval (95% CI) were calculated with the random effects model. Nine published studies comprising 333 dezocine injection patients and 321 morphine injection patients were included in this meta-analysis. Our results suggested that there was no statistical significance between dezocine injection and morphine injection at the case number of effective pain relief (EPR) [OR = 0.97, 95% CI (0.77–1.22), I2 = 0.0, P for heterogeneity = 1.000]. However, the rate of adverse drug reaction (ADR) caused by dezocine injection was 56% less than that caused by morphine injection, the difference was statistically significant [OR = 0.44, 95% CI (0.30–0.65), I2 = 0.0, P for heterogeneity = 0.980]. No between-study heterogeneity and publication bias were found. In conclusions, this meta-analysis indicates that there is no significant association on the efficacy of persistence of pain in patients with cancer between dezocine injection and morphine injection among Chinese. However, dezocine injection was with less ADR compared with morphine injection.
Quantification of the association between the intake of selenium and risk of pancreatic cancer is still conflicting. Thus, we conducted a meta-analysis to summarize the evidence from epidemiological studies of selenium intake with the risk of pancreatic cancer. Pertinent studies were identified by a search of PubMed and Web of Knowledge to July 2016. The random-effect model was used. Sensitivity analysis and publication bias were conducted. Data from six studies including 1424 pancreatic cancer cases were used in this meta-analysis. Pooled results suggested that highest selenium intake amount compared with lowest amount was significantly associated with the risk of pancreatic cancer [summary relative risk (RR)=0.659, 95% confidence interval (CI)=0.489–0.889, I2=47.6%]. The associations were significant both in case–control studies [RR=0.618, 95%CI=0.399–0.956, I2=59.1%] and Americas [RR=0.570, 95%CI=0.357–0.909, I2=65.6%]. No publication bias was found. Our analysis suggested that the higher intake of selenium might reduce the risk of pancreatic cancer.
Both combination therapy with oxycodone plus pregabalin and oxycodone monotherapy were effective and safe for herpetic neuralgia. In addition, subjects on combination therapy showed shortened time to pain relief, reduced pain intensity, and greater improvement than oxycodone alone.
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