高频电针结合臭氧对膝骨关节炎患者血清IL-1及TNF-α表达的影响

目的:研究高频电针(100Hz)结合膝关节腔内注射臭氧对膝骨关节炎(KOA)患者血清IL-1及TNF-α水平的影响。方法:将195例KOA患者随机分为三组,100 Hz电针治疗组(A组,n=65); 膝关节腔内臭氧注射治疗组(B组,n=65); 100 Hz电针结合膝关节腔内臭氧注射治疗组(C组,n=65),疗程均为3周。分别于治疗前和治疗后检测患者血清IL-1及TNF-α水平,并进行WOMAC 指数评分。结果:治疗后,三组患者的血清IL-1、TNF-α含量均较治疗开始前有所降低; 且C 组改善水平优于A、B 组,B组改善水平优于A组,差异均具有统计学意义(P<0.05); 治疗后,三组患者WOMAC 指数评分均较治疗前有所降低; 且C 组WOMAC评分好于A和B 组,B 组WOMAC评分优于A 组,差异均有统计学意义(P<0.05)。结论:高频电针结合膝关节腔内注射臭氧可显著抑制KOA患者血清 IL-1、TNF-α的表达,改善患者WOMAC指数评分。     

针刺结合医用臭氧注射在膝骨性关节炎治疗作用中的系统评价

目的:系统评价针刺结合医用臭氧注射治疗膝骨性关节炎的临床疗效和安全性。方法:依据荟萃分析要求,全面检索CBM、CNKI、VIP、PubMed、Embase及TheCochraneLibrary等数据库,纳入以针刺结合医用臭氧注射为干预措施治疗膝骨性关节炎且为随机对照试验或临床对照试验的研究文献,文献的检索年限均为建库至2019年4月。由两名经过培训的研究人员独立进行检索并提取资料,如果遇到分歧,找第三方(老师或者专家)协助解决。采用Cochrane协作网提供的ReviewManager5.3软件进行数据的荟萃分析。结果:最终纳入15篇RCT或CCT,受试者共1244例,10篇文献报道总有效率,总有效率异质性检验:[Chi2=5.07,P=0.83,I2=0%,OR=4.00,95%CI(2.72,5.89),Z=7.03,P<0.00001]。10篇文献报道了VAS评分,异质性检验,[MD=-1.72,95%CI(-2.39,-1.06),Z=5.10,(P<0.00001)]。2篇文献报道了WOMAC指数,异质性检验,[Chi2=0.01,P=0.91,I2=0%,MD=-6.84,95%CI(-9.23,-4.45),Z=5.61,P<0.00001]。2篇文献报道了Lysholm膝关节功能评分,异质性检验,[Chi2=0.84,P=0.36,I2=0%,MD=7.97,95%CI(5.60,10.34),Z=6.60,P<0.00001]。仅有1篇文献报道不良反应的发生。结论:针刺结合医用臭氧注射治疗膝骨性关节炎疗效显著,易于推广,但其结论的验证还需要大样本高质量临床试验进一步验证。     

Dos terapias conocidas podrían ser efectivas como adyuvantes en el paciente crítico infectado por COVID-19

Pneumonia caused by coronavirus, which originated in Wuhan, China, in late 2019, has been spread around the world already becoming a pandemic. Unfortunately, there is not yet a specific vaccine or effective antiviral drug for treating COVID-19. Many of these patients deteriorate rapidly and require intubation and are mechanically ventilated, which is causing the collapse of the health system in many countries due to lack of ventilators and intensive care beds.In this document we review two simple adjuvant therapies to administer, without side effects, and low cost that could be useful for the treatment of acute severe coronavirus infection associated with acute respiratory syndrome (SARS-CoV-2). Vitamin C, a potent antioxidant, has emerged as a relevant therapy due to its potential benefits when administered intravenous. The potential effect of vitamin C in reducing inflammation in the lungs could play a key role in lung injury caused by coronavirus infection. Another potential effective therapy is ozone: it has been extensively studied and used for many years and its effectiveness has been demonstrated so far in multiples studies. Nevertheless, our goal is not to make an exhaustive review of these therapies but spread the beneficial effects themselves.Obviously clinical trials are necessaries, but due to the potential benefit of these two therapies we highly recommended to add to the therapeutic arsenal.     

Antibacterial effect of ozone on cariogenic bacterial species

Objective

The aim was to evaluate the antibacterial effect of ozone on cariogenic bacterial species with and without the presence of saliva and a possible effect on the salivary proteins.

Methods

Suspensions of Actinomyces naeslundii (ACTCC 12104^T), Lactobacilli casei (N CTC 151) and Streptococcus mutans (NCTC 10449), in salt buffer or in saliva, were exposed to ozone gas delivered by the ozone generator Healozone™ 2130C. Aliquots of the suspensions were taken after 10, 30 and 60 s ozone exposures and cultivated on agar plates. Initial number of bacteria per ml was 8.0 × 10⁷ (SD 2.2 × 10⁷) (A. naeslundii), 1.0 × 10⁸ (SD 3.1 × 10⁶) (L. casei) and 1.0 × 10⁸ (SD 7.0 × 10⁵) (S. mutans), respectively. The proteins were separated by SDS electrophoresis and visualized by silver staining.

Results

In salt buffer 92%, 73% and 64% of the initial numbers of A. naeslundii, S. mutans and L. casei, respectively, were killed already after 10 s ozone exposure, while approximately 99.9% of the bacteria were dead after a 60 s exposure. After 10 and 30 s, but not after 60 s exposure to ozone, S. mutans and L. casei were less efficiently killed in saliva compared to the salt buffer. Various saliva proteins were degraded by ozone after a 60 s exposure.

Conclusions

The cariogenic species S. mutans, L. casei and A. naeslundii were almost eliminated following 60 s of ozone treatment. This killing was reduced in the presence of saliva although increasing the ozone application time to 60 s overcame these reductants in saliva. Detection of altered salivary proteins indicates that saliva components constitute additional targets for ozone.     

臭氧老化作用对SY-1硅橡胶机械性能的影响

目的：评估臭氧老化作用对SY－1硅橡胶物理性能，机械性能的影响，方法：按国家标准要求对SY－1硅橡胶臭氧化前后硬度（邵氏－A），扯断强度，扯断伸长率和撕裂强度进行测试，并进行统计学分析。结果：经臭氧化老化作用处理，硬度差异显著（P＝0．0082），扯断强度，扯断伸长率，永久变形和撕裂强度老化前后无显著差异（P＞0．05）。结论：SY－1硅橡胶物理机械性能优良，同时具有良好的抗臭氧老化性能。     

A quantitative approach to the effectiveness of ozone against microbiota organisms colonizing toothbrushes

OBJECTIVES: Toothbrushes are rapidly contaminated with different microorganisms, which colonize the oral cavity and interdental spaces. This can represent a possible cause of infection or reinfection. In this study, the ozone experimental effect upon toothbrushes microflora was estimated microbiologically before and after saturation with ozone gas. METHODS: Fifty used toothbrushes coming from children and adults were entered our study. Microorganisms were enumerated and identified. Bristles from each brush were soaked in ozone saturated PBS solution for 5, 10, 15, 20 and 30 min and the total microbial population was reassessed. RESULTS: Counts of microorganisms isolated per brush varied between 10(2) and 10(7) CFU. Candida albicans was present in used toothbrushes. No obligate anaerobes were isolated. Members of Streptococcaceae family were regularly found (65.2%) belonging to the following species: Streptococcus pyogenes, S. mutans, S. mitis, S. oralis, S. sobrinus, S. viridans, S. salivarius, S. sanguis, Aerococcus viridans. A. viridans and S. mutans were more frequently isolated on children toothbrushes while Staphylococcus aureus and S. epidermidis were found on adults brushes. Escherichia coli, Pseudomonas sp. and Enterococcus sp., were also recovered. We found that the ozone treatment decreased gradually the microbial load. However, a bacterial re-growth was effective following short ozonation period. Decontamination was complete after an extended exposure to ozone for 30 min. CONCLUSIONS: Ozone application was found to remove the toothbrushes bristles microbiota following conventional brushing. Maximum decontamination efficacy of ozone treatment was observed after 30 min while exposure for short time periods seems to be inefficient which probably reflect the low dose of ozone used in this study.     

经皮穿刺切吸与臭氧射频组合应用治疗腰椎间盘突出症

目的 比较经皮穿刺椎间盘切吸术与该术式分别和臭氧氧化术、等离子射频消融术组合应用治疗腰椎间盘突出症的临床效果。方法 回顾性分析自2006-06-2012-06采用介入手术治疗的腰椎间盘突出症219例。其中经皮椎间盘切吸加臭氧氧化术55例（A组）,经皮椎间盘切吸加等离子低温射频术71例（B组）、单纯经皮椎间盘切吸术93例（C组）。结果 所有手术均顺利完成,随访1-7年,平均4年,采用视觉模拟评分法（VAS评分）、Oswestry功能障碍指数（ODI）评定疗效,经统计学分析：A、B组间差异无统计学意义（P〉0.05）,C组分别与A、B组间比较,差异有统计学意义（P〈0.05）。3组手术时间差异无统计学意义（P〉0.05）。结论 经皮穿刺椎间盘切吸术与臭氧氧化或等离子射频消融术组合使用可提高疗效。     

臭氧注射联合神经阻滞治疗臀上皮神经卡压症的疗效观察

目的：观察臭氧注射联合神经阻滞治疗臀上皮神经卡压症的临床疗效。方法选取2009年1月_2012年12月医院收治的臀上皮神经卡压症患者113例,依照治疗方法的不同分为对照组56例与观察组57例。对照组采用单纯2％利多卡因2ml ﹢曲安奈德20mg ﹢甲钴胺0,5mg ﹢0,9％氯化钠溶液混合液于臀上皮神经入臀处的压痛点行神经阻滞治疗;观察组在对照组基础上加用臭氧注射,比较2组治疗效果。结果观察组总有效率为92,98％明显高于对照组的80,36％,差异有统计学意义（p ＜0,05）。结论应用臭氧注射联合神经阻滞治疗臀上皮神经卡压症简便易行且安全可靠,效果显著,值得临床推广应用。     

La respuesta sistémica Th17/IL-17A aparece antes del proceso neurodegenerativo en el hipocampo de ratas expuestas a bajas dosis de ozono

IntroductionExposure to low doses of O₃ leads to a state of oxidative stress. Some studies show that oxidative stress can modulate both the CNS and systemic inflammation, which are important factors in the development of Alzheimer disease (AD).ObjectiveThis study aims to evaluate changes in the frequency of Th17-like cells (CD3⁺CD4⁺IL-17A⁺), the concentration of IL-17A in peripheral blood, and hippocampal immunoreactivity to IL-17A in rats exposed to low doses of O₃.MethodsOne hundred eight male Wistar rats were randomly assigned to 6 groups (n = 18) receiving the following treatments: control (O₃ free) or O₃ exposure (0.25 ppm, 4 hours daily) over 7, 15, 30, 60, and 90 days. Twelve animals from each group were decapitated and a peripheral blood sample was taken to isolate plasma and mononuclear cells. Plasma IL-17A was quantified using LUMINEX, while Th17-like cells were counted using flow cytometry. The remaining 6 rats were deeply anaesthetised and underwent transcardial perfusion for immunohistological study of the hippocampus.ResultsResults show that exposure to O₃ over 7 days resulted in a significant increase in the frequency of Th17-like cells and levels of IL-17A in peripheral blood. However, levels of Th17/IL-17A in peripheral blood were lower at day 15 of exposure. We also observed increased IL-17A in the hippocampus beginning at 30 days of exposure.ConclusionThese results indicate that O₃ induces a short-term, systemic Th17-like/IL-17A effect and an increase of IL-17A in the hippocampal tissue during the chronic neurodegenerative process.