孟鲁斯特治疗小儿轻中度持续哮喘的临床疗效

目的探讨孟鲁斯特治疗小儿轻中度持续性哮喘的临床效果。方法选取2012年5月～2013年7月收治的轻中度持续哮喘患儿98例,随机分为两组,对照组46例患儿给予布地奈德气雾剂进行常规治疗,观察组52例在对照组常规治疗的基础上,再给予口服孟鲁斯特钠片进行治疗。比较两组患儿的治疗效果。结果观察组患儿的临床总有效率为94．2％,显著高于对照组的76．1％,差异有统计学意义（P〈0．05）;经治疗跟踪观察,对照组患儿嗜酸性粒细胞及血清IgE水平均显著高于观察组,差异具有统计学意义（P〈0．05）。结论孟鲁司特在治疗小儿轻中度持续性哮喘时效果显著。     

Multidisciplinary Treatment in Patients With Persistent Pain Following Total Hip and Knee Arthroplasty

In a retrospective study, we evaluated the clinical outcome of multidisciplinary pain therapy (MPT) in a consecutive series of 40 patients with persistent unexplained pain following THA or TKA. Pain intensity, physical capability and psychological status were assessed before MPT (t1), after 3 weeks (t2) and at a mean follow-up of 32 months (t3). At t2, all scores demonstrated a significant improvement compared to the baseline value. At t3, pain intensity, physical capability, and depression levels deteriorated slightly but were still significantly better compared to baseline values. Anxiety scores deteriorated between t2 and t3 and showed no difference in the baseline value. The present study suggests that MPT has beneficial short-term and mid-term effects in this subgroup of patients and may avoid exploratory revision surgery.     

鼻中隔矫正术对变应性鼻炎伴鼻中隔偏曲患者生活质量的影响

目的评价鼻中隔偏曲矫正术对持续性变应性鼻炎（allergicrhinitis,AR）伴鼻中隔偏曲患者症状和生活质量的影响。方法应用症状视觉模拟评分量表（Visual Analogue Scale,VAs）和鼻结膜炎生存质量量表（Rhinocon junctivitis Quality of Life Questionnaire,RQI。Q）对62例持续性变应性鼻炎伴鼻中隔偏曲患者行鼻中隔偏曲术前、术后1个月、术后6个月临床症状和生活质量进行研究。结果鼻中隔偏曲矫正术后1个月、6个月患者症状、生活质量较术前均得到改善。术后1个月、6个月RQI．Q量表中各个维度的得分较术前明显降低,差异有统计学意义（P〈0．05）;术后6个月除总评分外,其余各维度与术后1个月比较,差异无统计学意义（P〉0．05）。VAS量表显示：术后患者症状较术前均有不同程度的改善,但改善最明显的为鼻塞,其次为打喷嚏。结论变应性鼻炎伴鼻中隔偏曲患者的生活质量降低,鼻中隔偏曲矫正术能明显的改善患者症状同时能提高患者的生活质量。     

Concentration-dependent Effect of Sodium Hypochlorite on Stem Cells of Apical Papilla Survival and Differentiation

Introduction

Intracanal disinfection is a crucial step in regenerative endodontic procedures. Most published cases suggest the use of sodium hypochlorite (NaOCl) as the primary irrigant. However, the effect of clinically used concentrations of NaOCl on the survival and differentiation of stem cells is largely unknown. In this study, we tested the effect of various concentrations of NaOCl on the stem cells of the apical papilla (SCAPs) survival and dentin sialophosphoprotein (DSPP) expression.

Methods

Standardized root canals were created in extracted human teeth and irrigated with NaOCl (0.5%, 1.5%, 3%, or 6%) followed by 17% EDTA or sterile saline. SCAPs in a hyaluronic acid–based scaffold were seeded into the canals and cultured for 7 days. Next, viable cells were quantified using a luminescence assay, and DSPP expression was evaluated using quantitative real-time polymerase chain reaction.

Results

There was a significant reduction in survival and DSPP expression in the group treated with 6% NaOCl compared with the untreated control group. Comparable survival was observed in the groups treated with the lower concentrations of NaOCl, but greater DSPP expression was observed in the 1.5% NaOCl group. In addition, 17% EDTA resulted in increased survival and DSPP expression partially reversing the deleterious effects of NaOCl.

Conclusions

Collectively, the results suggest that dentin conditioning with high concentrations of NaOCl has a profound negative effect on the survival and differentiation of SCAPs. However, this effect can be prevented with the use of 1.5% NaOCl followed by 17% EDTA. The inclusion of this irrigation regimen might be beneficial in regenerative endodontic procedures.