Floating Index Metacarpal Associated with Multiple Carpometacarpal Fracture-Dislocations: a Case Report

The floating metacarpal bone is a result of simultaneous fracture-dislocation of both carpometacarpal and metacarpophalangeal joints. This rare entity may be associated with other hand injuries. Here we present a floating index metacarpal with concomitant 3rd–5th carpometacarpal fracture-dislocations. Excellent functional short-term result was achieved after open metacarpopha langeal reduction and closed carpometacarpal reduction and percutaneous pinning.     

关附甲素对豚鼠乳头肌动作电位最大除极速度的频率依赖性抑制作用

应用标准微电极技术，研究了关附甲素对豚鼠右心室乳头肌动作电位最大除极速率(V_max)的频率依赖性抑制作用(RDB)，并与美西律，奎尼丁，劳卡尼进行了比较. 在相同刺激间隔(300 ms)，产生50%左右RDB的药物浓度下，美西律的RDB开始最快，其第2个V_max所产生的抑制已占RDB的64%，奎尼丁，劳卡尼和关附甲素的RDB开始速率常数分别为每个动作电位0.165, 0.076和0.136. 美西律，奎尼丁，劳卡尼和关附甲素产生RDB的恢复时间常数分别为1.4, 9.0, 18.2和44.0 s，而且它们的恢复时间常数是不依赖于药物浓度而变化的，结果提示，关附甲素是一个慢动力学钠通道阻滞剂.     

The therapeutic effect of cerium oxide nanoparticle on ischaemia/reperfusion injury in rat testis

Testicular torsion is a dangerous urogenital disorder which is caused by twisting of spermatic cord, and unless immediate treatments happen at a proper time, oxidative stress, occurred during ischaemia reperfusion, finally leads to irreversible disintegration of testicular tissue. One of the first preventive lines is to administrate antioxidant factors. In the present study, we investigate the therapeutic effect of cerium oxide nanoparticle on the injury. We divided 45 rats into nine groups, subjected eight groups to testicular torsion–detorsion, injected different doses of cerium oxide nanoparticle into the peritoneum of six groups and analysed all the groups regarding spermatogenetic indices including sperm count, sperm viability and Johnson mean. Our results showed that cerium oxide nanoparticle can alleviate oxidative stress in testis, and this alleviation promotes the reproductive indices as the concentration of cerium oxide nanoparticles increases. The catalase-mimetic and superoxide dismutase-mimetic activities of cerium oxide nanoparticle are the most probable theories to explain the antioxidant effect of the nanoparticle.     

A randomized,double-blind placebo-controlled add-on trial to assess the efficacy,safety, and anti-atherogenic effect of spirulina platensis in patients with inadequately controlled type 2 diabetes mellitus

The efficacy of spirulina platensis (S. platensis) as an add-on therapy to metformin and its effect on atherogenic keys in patients with uncontrolled Type 2 Diabetes Mellitus (T2DM) was evaluated. Sixty patients were randomly assigned to S. platensis (2 g/day) or placebo group for three months while continuing metformin as their usual treatment. The efficacy of S. platensis was determined using the pre- and post-intervention HbA1c levels (primary outcome) as well as tracking FBS and lipid profiles levels (TC, LDL-C, TG, and HDL-C) as secondary outcomes at the different treatment time points (0,30,60,90 days). During the three–month intervention period, supplementation with S. platensis resulted in a significant lowering of HbA1c (↓1.43, p < 0.001) and FBS (↓ 24.94 mg/dL, p < 001) levels. Mean TG in the intervention group was found to be significantly lower in the intervention group than in controls (p < 0.001). Total cholesterol (TC) and its fraction, LDL-C, exhibited a fall (↓41.36 mg/dL and ↓38.4 mg/dL, respectively; p < 0.001) coupled with a marginal increase in the level of HDL-C (↑3 mg/dL; p < 0.001). Add-on therapy with S. platensis was superior to metformin regarding long-term glucose regulation and controlling blood glucose levels of subjects with T2DM. Also, as a functional supplement, S. platensis has a beneficial effect on atherogenic keys (TG and HDL-C) with no adverse events.     

Evaluating mechanism and severity of injuries among trauma patients admitted to Sina Hospital, the National Trauma Registry of Iran

Purpose: Injuries are one of the leading causes of death and lead to a high social and financial burden. Injury patterns can vary significantly among different age groups and body regions. This study aimed to evaluate the relationship between mechanism of injury, patient comorbidities and severity of injuries. Methods: The study included trauma patients from July 2016 to June 2018, who were admitted to Sina Hospital, Tehran, Iran. The inclusion criteria were all injured patients who had at least one of the following: hospital length of stay more than 24 h, death in hospital, and transfer from the intensive care unit of another hospital. Data collection was performed using the National Trauma Registry of Iran minimum dataset. Results: The most common injury mechanism was road traffic injuries (49.0%), followed by falls (25.5%). The mean age of those who fell was significantly higher in comparison with other mechanisms (p < 0.001). Severe extremity injuries occurred more often in the fall group than in the vehicle collision group (69.0% vs. 43.5%, p < 0.001). Moreover, cases of severe multiple trauma were higher amongst vehicle collisions than injuries caused by falls (27.8% vs. 12.9%, p = 0.003). Conclusion: Comparing falls with motor vehicle collisions, patients who fell were older and sustained more extremity injuries. Patients injured by motor vehicle collision were more likely to have sustained multiple trauma than those presenting with falls. Recognition of the relationship between mechanisms and consequences of injuries may lead to more effective interventions.     

Quality of hospital services during New Year holiday (Nowruz) in Iran

Journal of Public Health - Iranian New Year, with long consecutive holidays, although it is celebrated and enjoyed, might influence the quality of services provided by hospitals. The present study...     

奥沙利铂为主联合化疗治疗预后不良的晚期非小细胞肺癌临床研究

41例经病理或细胞学确诊的晚期非小细胞肺癌,接受奥沙利铂(L-OHP)为主的联合化疗。L-OHP分别联合吉西他滨(GEM)、去甲长春碱(NVB)、紫杉醇各15、21、5例。三组均予L-OHP100~130mg/m2,静脉滴入,d1;GEM组予GEM1000~1250mg/m2,静脉滴入,d1,d8;NVB组予NVB25mg/m2,静脉滴入,d1,d8;紫杉醇组予紫杉醇150~175mg/m2,静脉滴入,d1。21d为1个周期,每例患者至少治疗2个周期。共132个周期,平均3·2个周期。结果显示,总有效率14·6%(6/41),肿瘤控制率31·7%(13/41)。1年生存率26·8%(11/41),中位生存期7·2个月。主要的血液学不良反应为血小板减少,但Ⅲ~Ⅳ度减少仅占17·1%(7/41);4例(9·8%)患者发生Ⅲ~Ⅳ度白细胞减少;5例(12·2%)患者输注了红细胞。非血液学不良反应大部分局限于Ⅰ~Ⅱ度,10例(24·4%)患者出现Ⅰ~Ⅱ度神经毒性,均可逆。初步研究结果提示,L-OHP为主的联合化疗方案治疗预后不良的晚期NSCLC有一定疗效;但其疗效能否与顺铂相比,仍有待临床的进一步研究。其不良反应较轻,耐受性较好。     

液相色谱/质谱法测定人血清中特布他林及其药代动力学

目的:测定人血清中特布他林浓度,研究中国男性健康志愿者口服该药后药代动力学规律。方法:用LC-MS法测定特布他林浓度。流动相:2%冰乙酸—异丙醇(98.5∶1.5);色谱柱:Shimadzu VP-ODS;流速:0.5mL·min^-1;柱温:30℃。结果:特布他林浓度在0.2～20ng·mL^-1范围内线性关系良好(γ=0.9998)。方法的回收率高于90%,最低浓度的日内及日间精密度分别为8.2%和12.9%,最低检测限为0.05ng。10名健康志愿者单剂量口服特布他林口服液7.5mg后,药代动力学行为符合二房室模型。结论:此法灵敏度高、选择性强,符合生物样品分析要求。     

维生素A和维生素E对梭曼染毒大鼠自由基损伤的预防作用

目的　探讨梭曼染毒自由基损伤及维生素A(VA)和维生素E(VE)对该损伤的保护作用。方法　实验设对照组 ,梭曼染毒模型组及VA 和VE 实验组。在梭曼染毒前 ,对照组和梭曼染毒模型组ig处理过的菜子油 (1mL·kg- 1·d- 1) ,VA 及VE 实验组分别按VA2mg·kg- 1和VE2 .5mg·kg- 1的剂量ig ,共 9d。d 10除对照组外 ,其余大鼠均用梭曼腹部sc(6 3μg·kg- 1) ,中毒 2h后宰杀取血和肝脏组织 ,观察大鼠血清和肝组织中相关指标的变化。结果　结果显示 ,染毒模型组AChE严重下降 ,血清和肝组织中MDA含量明显升高 ,血清和肝组织中SOD活性下降 ,全血和肝组织中GSH Px活性呈显著下降趋势。VA 和VE 实验组血清MDA含量下降 ,在血清和肝组织中SOD及全血和肝组织中GSH Px活性均上升。结论　梭曼染毒引起AChE活性严重下降 ,同时伴有严重的自由基损伤 ,染毒前大鼠用VA 和VEig处理 ,能够保护AChE活性 ,同时作为抗氧化剂的VA和VE 能保护梭曼染毒所致的自由基损伤