Analyses of serum vitamin D-binding protein, ceruloplasmin and copper levels in preterm infants.

The cord blood specimens of 12 preterm and 20 term babies were investigated. We determined serum calcium (Ca), phosphorus (P), magnesium (Mg), vitamin-D binding protein (DBP), ceruloplasmin (Cp) and copper (Cu) levels in two groups. We found that Ca, P, and MG levels of cord sera did not differ between the groups (p > 0.05), but DBP, Cp and Cu values showed a significant decrease in the preterm group (p < 0.05). The Cu and Cp values of the preterm infants correlated with those of the term infants.     

Effects of UV-light on Bacillus sphaericus and its protection by chemicals

Although when UV-irradiated seven most toxic strains of Bacillus sphaericus lost their viabilities between 2.5-4.5 min, their larvicidal activity was protected for longer periods. Benzaldehyde, cinnamaldehyde, salicylaldehyde, methylene blue and yeast extract showed good protective effect for spore viability and larvicidal activity from UV inactivation in B. sphaericus. This protective effect has also been confirmed by SDS-PAGE analyses whereby the 42 kDa and 51 kDa toxic proteins bands did not disappear following UV treatment.     

End-to-side neurorrhaphies of the ulnar and median nerves at the wrist: report of two cases without sensory or motor improvement

The authors present two unsuccessful clinical cases of end-to-side neurorrhaphy. In the first patient the distal median nerve was coapted in an end-to-side manner to the intact ulnar nerve. In the other patient four cables of sural nerve graft were used to bridge the ulnar nerve and the intact median nerve by two end-to-side coaptations. Neurorrhaphies were performed via epineural sutures through epineural windows. Both of the cases failed to demonstrate any signs of regeneration either clinically or as evidenced by electromyography, Semmes-Weinstein monofilament test, or 256-Hz vibration tests at 18 and 21 months' follow-up respectively.     

Fiberoptic bronchoscopy during noninvasive positive-pressure ventilation in patients with chronic obstructive lung disease with hypoxemia and hypercapnia

OBJECTIVES: To assess the feasibility and safety of non invasive positive-pressure ventilation (NIPPV) via a face mask to performing fiberoptic bronchoscopy (FOB) in patients with COPD contraindicating FOB in spontaneous ventilation. STUDY DESIGN: Clinical, prospective, open, non comparative trial of feasibility. PATIENTS: Ten consecutive COPD patients (71 +/- 5 year-old, PaO2 = 53 +/- 13 mmHg and PaCO2 = 67 +/- 11 mmHg), without any sign of acute respiratory failure, admitted to the intensive care unit for pneumonia requiring a bronchoalveolar lavage (BAL). Including were: PaO2 < 70 mmHg despite nasal O2 delivered at 3 L.min-1, PaCO2 > 50 mmHg, improvement of SpO2 with NIPPV before FOB. METHODS: Topical anaesthesia of the nose and pharynx was obtained with a 5% lidocaine spray. NIPPV was administered using a ventilatory support system Evita 4 (Dr?ger) applied through a full facial mask secured to the patient with elastic straps. Patients were first allowed to acclimate for 5 min with NIPPV (IPAP = 16 cmH2O, EPAP = 0 and trigger of 0.3 cm H2O while a FIO2 kept at 0.7). A T-adapter Medisize (Péters) was attached to the facial mask. The tip of the FOB was inserted through the nose. Topical anaesthesia of the vocal cords was obtained with 1% lidocaine solution (3 mL). The FOB was inserted into the trachea up to a bronchial sub-segment. BAL was performed by instillation of 100 mL of saline solution. After FOB, the NIPPV was maintained for 5 min. Heart rate, SpO2 were measured continuously and arterial pressure at 2 min intervals. Arterial blood gas values were obtained just prior NIPPV and after 15 min and 60 min NIPPV disconnection. RESULTS: FOB duration was 11 +/- 4 min. SpO2 significantly improved during FOB (from de 91 +/- 4.7% to 97% +/- 1.7) without decrease of oxygen saturation lower than 90%. There were no changes in PaCO2 and PaO2 during the hour following the end of procedure. FOB under NIPPV was performed in all patients without complications and was very well tolerated in eight patients. After NPPV disconnecting, one patient required again NIPPV for 15 min. No patient required endotracheal intubation within 24 hours. All patients survived. CONCLUSION: Application of NIPPV during FOB is a safe technic for maintaining adequate gas exchange in hypoxaemic and hypercapnic COPD patients not in acute respiratory failure. After the end of the procedure a close surveillance in the intensive care unit is essential.     

PNS单体Rb_l对豚鼠心脏乳头肌动作电位和收缩力的影响

目的 :了解PNS单体Rbl对豚鼠心脏乳头肌动作电位和收缩力的影响。方法 :运用带有动作电位和收缩力分析软件控制的细胞内微电极技术 ,研究了三七皂苷 (PNS)单体Rbl对豚鼠正常心脏乳头肌动作电位 (AP)各特征参数及收缩力 (FC)的影响。结果 :Rb1 1 0～ 30 μmol·L- 1 分别使APD 2 0 ,APD 90明显缩短 ,FC显著下降 (P<0 .0 1 ,n =5) ,并可降低高钾诱发的豚鼠乳头肌慢反应动作电位的动作电位幅值 (APA)及零相最大上升速率(Vmax) (P <0 .0 5 ,n =5)。但对静息电位 (RP) ,APA ,Vmax及AP的超射值 (OS)无明显影响 (P >0 .0 5 ,n =5)。另外 ,Rbl可浓度依赖性地抑制乳头肌收缩力 (FC) ,RP ,APA不随Rbl剂量增加而产生明显变化 ,呈典型的兴奋 收缩脱藕联。结论 :其效应可能通过阻滞钙通道而产生     

Effect of peritoneal fluid from patients with mild and severe endometriosis on endometrial stromal cell proliferation

The aim of this study was to evaluate and compare the mitogenic effect of peritoneal fluid (PF) from women with mild and severe endometriosis on the endometrial stromal cell proliferation. Increasing concentrations of PF from women with and without mild or severe endometriosis were added to primary endometrial stromal cell cultures and³H-thymidine incorporation was used to assess DNA synthesis in these cultures. PF from women with mild endometriosis induced a statistically significant dose-dependent increase in stromal cell thymidine uptake ranged from 5.8 to 14.5 fold, whereas PF from women with severe endometriosis produced an average 51% inhibition of stromal cell proliferation of compared with cells exposed to non-endometriosis PF or exposed to nutrient medium supplemented with 2.5% calf serum alone. PF samples from patients with stage I endometriosis induced a statistically dose-dependent increase in stromal cell proliferation, whereas PF from patients with stage IV endometriosis caused a significant inhibition.     

高龄低危急性心肌梗死患者急诊行PCI与左室功能关系的临床研究

目的探讨高龄低危急性心肌梗死（AMI）患者急诊冠状动脉介入治疗（PCI）与左室功能的临床关系。方法应用超声心动图（ECHO）评价45例高龄AMI患者，将45例AMI患者分为PCI组（20例）及对照组（25例），均于梗死后第4、24周进行ECHO检查。结果经统计学分析，术后第24周PCI组收缩末容积指数（ESVI）及舒张末容积指数（EDVI）与术后第4周比较差异有统计学意义（P〈0．05），左室射血分数（LVEF）显著增加（P〈0．05），室壁节段运动指数（WMSI）降低（P〈0．05）；对照组EDVI、WMSI治疗后第24周与治疗后第4周比较，差异有统计学意义（P〈0．05）。结论高龄低危AMI患者急诊行PCI开通梗死相关动脉，可明显改善左室重构，提高左室功能。     

异甘草酸镁联合降脂治疗非酒精性脂肪型肝炎及对肝功能的影响

目的：探析异甘草酸镁联合降脂治疗非酒精性脂肪型肝炎疗效及对肝功能影响。方法以该院2011年5月-2014年10月期间所收治92例非酒精性脂肪型肝炎患者展开研究,对照组给予以调脂为主综合治疗,观察组加用异甘草酸镁,比较两组治疗前后PCⅢ、C-ⅠV、HA及ALT、AST、TBIL、γ-GT等肝纤维化指标。结果两组治疗前各肝纤维化指标的比较无统计学意义(P>0.05);治疗后,观察组PCⅢ、C-ⅠV、HA等指标均显著降低,与治疗前比较差异有统计学意义(P<0.05),与对照组治疗后的组间比较差异有统计学意义(P<0.05)。组间比较上,两组治疗前ALT、AST、TBIL、γ-GT等肝功能指标的比较无统计学意义(P>0.05),治疗后两组各指标的比较差异有统计学意义(P<0.05);组内比较上,两组治疗前后各指标的比较差异有统计学意义(P<0.05)。结论异甘草酸镁可保护肝细胞,与降脂治疗联合应用于NASH患者可有效抑制肝细胞纤维化,促进肝功能的恢复,应用价值高。     

下颌角弧形截骨线的设计与临床意义

目的：为下颌角截骨术设计安全、美观的弧形截骨线。方法将150例（300侧）成人离体下颌骨的下颌管暴露。观测下颌管的走行特点;测量下颌管关键点距下颌缘的距离;观测下颌孔与下牙槽弓的位置关系;依据观测结果设计出符合个性化需求的弧形截骨线。结果下颌管关键点A1、B1、C1、D1、E1距下颌缘的距离分别为（14．02±2．23）mm、（21．06±3．90）mm、（14．08±3．68）mm、（13．60±2．80）mm、（14．55 ± 3．34）mm ,各点的最大截骨宽度分别为（10．05 ± 4．00）mm、（15．06±2．88）mm、（8．08±3．88）mm、（6．09 ± 3．45）mm、（7．06±3．56）mm ;下颌孔与下牙槽弓位于同一平面的概率为96％;截骨线的后端A点不应高于下颌孔平面,3条截骨线的前端C点、D点、E点分别是经下颌支前缘、下颌牙M 2位、下颌牙P4位向下所引垂线与下颌缘的交点。结论下颌角弧形截骨线的设计适应个性化需求,符合解剖学特征和美学要求,具有标志明确、易于操作、安全性高、术后效果好的优点。