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Objective To comprehensively evaluate the clinical efficacy of hemoperfusion (HP) combined with continuous veno-venous hemofiltration (CVVH) on acute paraquat poisoning (APP).Methods Literatures of Chinese and English randomized controlled trials (RCTs), case control and cohort study on HP combined with CVVH in the treatment of APP from the PubMed, Embase, Wanfang, and CNKI up to November 2017 were enrolled (the subjects were > 16 years old). The obtained literatures were strictly screened and evaluated in quality, and data such as mortality, the life time of dead patients, inefficiency rate, incidence of multiple organ dysfunction syndrome (MODS) and acute respiratory distress syndrome (ARDS) were extracted. Meta-analysis was performed by RevMan 5.3. Results Twenty-one studies were included with 2222 subjects, among whom 976 subjects were in HP combined with CVVH group (experimental group) and 1246 subjects in HP group (control group). Compared with control group, the mortality in experimental group were significantly decreased [43.77％ (362/827) vs. 55.26％ (604/1093), odds ratio (OR) =0.68, 95％ confidential interval (95％CI) = 0.56-0.82,P = 0.0001], the life time of death patients was significantly prolonged [mean difference (MD) = 4.63, 95％CI = 2.60-6.66,P < 0.00001], incidence of MODS [25.93％ (70/270) vs. 55.36％ (155/280),OR = 0.26, 95％CI = 0.14-0.49,P< 0.0001], and incidence of ARDS [30.37％ (82/270) vs. 51.07％(143/280),OR = 0.42, 95％CI = 0.30-0.61,P < 0.00001], and inefficiency rate [8.72％ (13/149) vs. 34.64％ (53/153),OR=0.17, 95％CI = 0.09-0.34, P < 0.00001] were significantly reduced. Funnel chart showed that except the publication bias of mortality rate, there were less publication bias about other indicators among studies.Conclusion HP combined with CVVH can significantly reduce the mortality of patients with APP compared with HP alone on the whole, prolong the life time and reduce the occurrence of MODS and ARDS, thus improving the treatment efficiency.
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With the incidence of type 2 diabetes mellitus increasing year after year, the technology of drug screening of type 2 diabetes mellitus progress rapidly, from the level of animal screening to cellular and molecular screening model, from the traditional drug screening technology to high efficient and throughput screening. This paper will summarize the technology of drug screening in the therapy of type 2 diabetes mellitus.
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Animals , Humans , Diabetes Mellitus, Type 2 , Drug Therapy , Genetics , Drug Evaluation, Preclinical , Methods , In Vitro TechniquesABSTRACT
OBJECTIVE: To optimize the extraction technology of ardicrenin from Ardisia crenata.METHODS: The content of ardicrenin was determined by RP-HPLC. The extraction technology was optimized by orthogonal experiment with the extraction rate of ardicrenin as evaluation index and with the volume fraction of ethanol,the extraction temperature,extraction time and extraction times as factors.RESULTS: The optimum extraction technology was determined as follows: 80%ethanol was used as solvent;the extraction temperature was 80 ℃;the extraction time was 20 min and the extraction was conducted for 3 times.The extraction rate of ardicrenin was 6.04%.CONCLUSION: The optimized extraction technology is feasible and reproducible,and it provides theoretical basis for mass extraction of the ardicrenin from A.crenata.
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OBJECTIVE: To study on the effect of different extracting methods on the content determination of polysaccharide from Caulis Dendrobii.METHODS: Polysaccharide was extracted from Caulis Dendrobii respectively by reflux extraction,improved reflux extraction,ultrasound wave extraction and ultrasonic-assisted thermal reflux extraction.The content of polysaccharide was determined by phenol-sulfuric acid method.RESULTS: The determined results using these methods were as follows:(13.473?0.634)%,(15.692?0.743)%,(11.87?0.536)% and (16.29?0.407)%.CONCLUSION: The content determination of polysaccharide from Caulis Dendrobii was associated with the extraction method.The polysaccharide from Caulis Dendrobii could be extracted more thoroughly and rapidly by ultrasonic-assisted extraction technology.Therefore this method could be used to pretreat the sample in content determination of Caulis Dendrobili polysaccharide.