目的:利用臭氧对粪便处理车间的臭气物质进行氧化分解时,臭氧的除臭效果和臭氧的适宜浓度。方法:在对京东某粪便处理车间大规模现场测试(官能法,化学法)的基础上,确定粪便处理车间的恶臭污染源,计算出臭氧氧化法的除臭效率。 结果:针对臭气成份与臭氧反应速度,绘制出了在粪便处理车间臭气浓度以及臭气主要成份硫化氢和氨随时间的衰减曲线;臭氧发生器启动后,臭气浓度迅速衰减,在第一个小时内臭气浓度衰减率为74%,硫化氢在第一个小时浓度衰减率为29%,第二个小时浓度衰减率为58.9%,氨2小时后总衰减率为56.8%;臭氧除臭时,粪便处理车间臭氧浓度应控制在0.03 ppm,此时臭气浓度为150,臭气强度为3级。 结论:该项研究为臭氧除臭装置和粪便处理车间利用臭氧氧化法除臭提供了设计依据。
摘要:目的:探讨联合应用激光汽化减压(percutaneous laser disc discompression,PLDD)、射频热凝靶点消融、臭氧注射治疗腰椎间盘突出症的的个体化选择。方法: 自2006年6月,在CT引导下选择性联合应用PLDD、射频和臭氧治疗腰椎间盘突出症患者267例,突出椎间盘的特点个体化选择穿刺路径和治疗方法;其中PLDD联合臭氧治疗92例(A组),射频联合臭氧治疗67例(B组),PLDD、射频和臭氧三者联合治疗108例(C组)。结果:所有患者均顺利完成手术,于术后1周、1个月,3个月及6个月随访记录VAS评分和Macanab优良率。三组患者VAS评分经方差分析,手术前、后有显著性差异(Plt;0.05),术后1周至6个月的VAS评分统计无显著性差异(Pgt;0.05);术后三组间VAS评分、Macanab优良率比较无显著性差异(Pgt;0.05)。结论: 选择性联合应用微创技术进行个体化的立体治疗,具有扩大微创手术适应症、提高手术疗效的优势,值得推广和利用。Abstract: Objective: To investigate the selectivity and individualization of using percutaneous laser disc discompression(PLDD) and ozone injection combined with radiofrequency thermocoagulation and target ablation curing lumbar intervertebral disc protrusion. Methods: From June 2006, 267 lumbar disc herniation cases were operated that guided by CT, the characteristic of the liable disc was confirmed by magnetic resonance imaging and CT before the procedure. 92 cases (A group) were treated by PLDD combined with ozone injection,67 case were treated by radiofrequency thermocoagulation and target ablation combined with ozone injection, 108 cases were treated by PLDD and ozone injection combined with radiofrequency thermocoagulation and target ablation. Results: All case been successfully operated, the theraptic effect was evaluated by comparing the value of VAS and excellent and good rate of therapy at preoperation and at 1 week, 1month,3 months, 6 months after operation. The value of VAS in three groups at postoperation were remarkably lower than preoperation (Plt;0.05). The excellent and good rate of therapy at 6 months was respectively 94.5％ in group A,94.0％ in group B and 95.4％ in group C,no significant difference was observed between the three groups(Pgt;0.05).Conclusion: The selectivity and individualization of using PLDD and ozone injection combined with radiofrequency thermocoagulation and target ablation curing lumbar intervertebral disc protrusion can enlarge the indication and improve the clinical curative effect, it should be spreaded in clinic.
ObjectiveTo discuss the efficacy and safety of the joint application of oral glucosamine hydrochloride tablets and knee joint cavity ozone injection in the treatment of knee osteoarthritis. MethodsFrom January 2014 to January 2015, 72 patients who matched the criteria of moderate knee osteoarthritis were randomly divided into two groups according to the table of random number: oral glucosamine hydrochloride tablet and knee joint cavity ozone injection group (group G+O) and ozone group (group O). Patients of group G+O orally took glucosamine hydrochloride tablets (0.48 g, 3 times/day) for twelve weeks, and ozone was injected into the patients’ knee joint once a week for the first four weeks. The treatment for group O patients was the same with Group G+O, except that the glucosamine hydrochloride tablets were replaced by glucosamine hydrochloride placebo (2 tablets, 3 times/day, taking orally). We recorded the Visual Analogue Scale (VAS) score, Western Ontario & McMaster University (WOMAC) osteoarthritis index score and the adverse reactions before treatment and in the first, third and sixth month after treatment. ResultsPatients’ VAS scores and WOMAC scores of both the two groups in the first, third and sixth month after treatment were significantly different from those before the treatment (P ＜ 0.05) . In the first month after treatment, there were no significant difference in patients’ VAS scores and WOMAC scores between the two groups (P ＞ 0.05) . In the third and sixth month after treatment, there were significant differences in patients’ VAS scores and WOMAC scores between the two groups (P ＜ 0.05) . There was no obvious adverse reactions during the treatment. ConclusionsThe combined application of oral glucosamine hydrochloride tablets and knee joint cavity ozone injection and the ozone treatment for moderate knee osteoarthritis are both effective, without any adverse reaction. The combined treatment of oral glucosamine hydrochloride tablets and knee joint cavity ozone injection on moderate knee osteoarthritis has better long-term efficacy, and it is worth spreading.
ObjectiveTo investigate the effects of acute and chronic ozone exposure on inflammation,structure and function in murine lung. Methods32 C57/BL6 mice were randomly divided into a single (acute) ozone exposed group,a single air exposed group,a multiple (chronic) ozone exposed group (every three days over 6 weeks),and a multiple air exposed group with 8 mice in each group.The mice were exposed to 2.5 ppm of ozone or air for 3 hours per time and sacrificed 24 hours after the last time of ozone exposure.Lung volume,low attenuation area (LAA) percentage,lung function,cell counts and malondialdehyde (MDA) in bronchoalveolar lavage fluid (BALF),8-hydroxy-2'-deoxyguanosine (8-OHdG) in serum,inflammation scores and mean linear intercept (Lm) in lung section were assessed. ResultsCompared with the single air exposed group,single (acute) ozone exposure led to increases in inflammatory cells in BALF,inflammation scores in the lung tissue,MDA in BALF and 8-OHdG in serum,but had no effect on lung volume,LAA percentage,airflow or Lm.Compared with the single (acute) ozone exposed group,the single air exposed group and the multiple air exposed group,multiple (chronic) ozone exposure increased inflammatory cells in BALF,lung volume,LAA percentage,total lung capacity and lung compliance,mediated airflow obstruction,and also increased lung inflammation socres and Lm. ConclusionAcute ozone exposure induced airway/lung inflammation and oxidative stress,while chronic ozone exposure induced airway/lung inflammation,emphysema and airflow obstruction.
ObjectiveTo explore the feasibility of medical ozone in treatment of pulmonary fibrosis. MethodsForty Wistar rats were randomly divided into an experimental group and a control group, with 20 rats in each group.All rats were intratreacheally instilled with bleomycin to induce pulmonary fibrosis.Then the rats were intraperitoneally injected with physiological saline every other day in the control group, and with medical ozone every other day in the experimental group.After 28 days, 10 rats in each group were sacrificed after lung function test.Right lung tissues were sampled for pathological examination, and left lung tissues were sampled for measurement of superoxide dismutase (SOD) and hydroxyproline.The remaining 10 rats in each group continued to be normally fed and intraperitoneally injected for observation of the survival time. ResultsThe lung function of the control group significantly decreased compared with the experimental group.The degree of lung fibrosis in the control group was more severe than that in the experimental group (lung fibrosis score: 1.9±0.5 vs.1.2±0.4, P < 0.05). The level of SOD in lung tissue was significantly higher and the level of hydroxyproline was significantly lower in the experimental group compared with the control group [(208.48±29.37)U·mg-1·pro-1 vs.(163.34±21.42) U·mg-1·pro-1, (2.25±0.28) mg/g vs.(2.68±0.37) mg/g, P < 0.05].The rats in the experimental group had longer survival time compared with the control group (79 d vs.59 d, P < 0.05). ConclusionMedical ozone can delay the progress of pulmonary fibrosis in rats.
目的探索食管癌、贲门癌、贲门失弛缓症术后胸腔感染的有效处理方法。 方法选取我院胸外科2012年1月至2014年6月间因食管癌、贲门癌、贲门失弛缓症手术并发食管胸腔瘘的患者42例，分为常规+臭氧治疗组和常规治疗组。常规治疗组28例，男22例、女6例，年龄54～78（63.5±6.8）岁，行胸腔闭式引流、抗感染、营养支持治疗；常规+臭氧治疗组14例，男11例、女3例，年龄39～74（64.7±9.1）岁，行常规治疗+臭氧胸腔保留灌注治疗。 结果两组年龄、性别、体重差异均无统计学意义（P＞0.05），常规+臭氧治疗组疗效明显优于常规治疗组：住院时间更短（P=0.017），住院费用更低（P=0.016），死亡率[0.00%（0/14）vs. 10.71%（3/28）]更低。 结论臭氧具有便捷、杀菌、消毒、不良反应以及促进脓腔吸收的作用，可以提高治疗效果，缩短住院时间，减少住院费用，值得临床推广和运用。
ObjectiveTo study the possbility of using intranasal instillation of fine particulate matter (PM2.5) combined with inhalation of ozone (O3) to establish mouse model of combined pulmonary fibrosis and emphysema (CPFE), and to provide a reference for the establishment of CPFE model.MethodsMale C57/BL6 mice were divided randomly into phosphate buffer saline (PBS) intranasal instillation+air inhalation group, PBS intranasal instillation+O3 inhalation group and PM2.5 intranasal instillation+O3 inhalation group, with 8 mice in each group. The mice were intranasally instilled with PBS or PM2.5 suspension (7.8 mg/kg) followed by air or ozone inhalation 24 hours later, twice a week over 8 weeks. Lung function, bronchoalveolar lavage fluid (BALF) cell counts and classification were detected, the pathological changes of lung tissues in hematoxylin-eosin staining were observed, including inflammation scores and mean linear intercept (Lm). The thickness of collagen deposition in subepithelium was measured in lung tissues in Masson staining, and simultaneously hydroxyproline contents in lung tissues were determined.ResultsCompared to PBS instillation+air inhalation group, inspiratory capacity (IC), total lung capacity (TLC) and chord compliance (Cchord) were increased, FEV25 (the forced expiratory volume at 25 ms)/FVC (forced vital capacity) was decreased, total cell counts in BALF, Lm and lung inflammatory scores were increased, the thickness of the subepithelial collagen layer (SEc/Pbm) or hydroxyproline contents was not changed in PBS instillation +O3 inhalation group; IC was decreased, functional residual capacity (FRC) was increased, TLC was increased, Cchord was decreased, FEV25/FVC and FEV50 (the forced expiratory volume at 50 ms)/FVC were decreased, total cell counts in BALF, Lm, lung inflammatory scores, SEc/Pbm and hydroxyproline contents were increased in PM2.5 instillation+O3 inhalation group. Compared to PBS instillation+O3 inhalation group, IC was decreased, FRC was increased, Cchord was decreased, FEV25/FVC and FEV50/FVC were decreased, total cell counts in BALF, Lm, lung inflammatory scores, SEc/Pbm and hydroxyproline contents were increased in PM2.5 instillation +O3 inhalation group.ConclusionCPFE mouse model can be successfully established by PM2.5 intranasal instillation combined with ozone inhalation for consecutive 8 weeks.
ObjectiveTo systematically review the efficacy and safety of major ozonated autohemotherapy in the treatment of ischemic stroke.MethodsPubMed, EMbase, The Cochrane Library, Web of Science, CBM, WanFang Data, VIP and CNKI were electronically searched to collect randomized controlled trials (RCTs) of the efficacy and safety of major ozonated autohemotherapy in the treatment of ischemic stroke from inception to July 1st, 2020. Two reviewers independently screened literature, extracted data and assessed risk of bias of included studies. Meta-analysis was then performed by using RevMan 5.3 software.ResultsA total of 25 RCTs involving 3 681 patients were included. The results of meta-analysis showed that the major ozonated autohemotherapy combined with conventional therapy in the treatment of patients with ischemic stroke in terms of total effective rate (RR=1.20, 95%CI 1.15 to 1.25, P<0.001), national institutes of health stroke scale (MD=−3.15, 95%CI −4.72 to −1.59, P<0.001), total cholesterol (MD=−1.00, 95%CI −1.48 to −0.53, P<0.001), triglyceride (MD=−0.74, 95%CI −1.04 to −0.43, P<0.001), low-density lipoprotein cholesterol (MD=−0.65, 95%CI −1.22 to −0.09, P=0.02), and activity of daily living (MD=11.97, 95%CI 4.48 to 19.47, P=0.002) were superior to the conventional treatment group. There was no significant difference between the two groups in high-density lipoprotein cholesterol (MD=0.25, 95%CI −0.46 to 0.96, P=0.49) and the incidence of adverse effects (OR=3.15, 95%CI 0.93 to 10.63, P=0.06).ConclusionsThe major ozonated autohemotherapy can significantly improve the prognosis of patients with ischemic stroke while not affecting the adverse effects. Due to the limited quality and quantity of the included studies, more high-quality studies are needed to verify the above conclusions.