Sickle cell trait-associated deaths: a case series with a review of the literature

This study presents a series of 16 carriers of hemoglobin S (HbS) who died during various circumstances. Many of the cases were associated with mild to moderate exertion. The onset and/or duration of symptoms varied from a few minutes to several hours with many displaying a prolonged lucid interval with stable vital signs. Despite seeking medical treatment, sickle cell trait-related micro-occlusive crisis was never considered in the differential diagnosis. Several cases were associated with sudden death. In those deaths which were delayed, high anion gap and uncompensated metabolic acidosis were typical and were not heat related. Also characteristic were large increases in creatine kinase, alanine aminotransferase, and aspartate aminotransferase along with myoglobinemia. Although the antemortem diagnosis of rhabdomyolysis was made, the underlying cause was never deduced by the clinicians. The sickling found at autopsy is not always a postmortem artifact, and in the right circumstances can be diagnostic.     

乳酸菌对子宫内膜上皮细胞的黏附及其对致病菌的拮抗作用

以永生化山羊子宫内膜上皮细胞作为体外模型,采用革兰氏染色法观察乳酸菌和致病菌对子宫内膜上皮细胞的黏附特性;通过平板计数法观察乳酸菌对致病菌的黏附拮抗作用.结果显示,嗜酸乳杆菌、粪肠球菌、盲肠肠球菌对子宫内膜上皮细胞均表现出很强的黏附特性,黏附细菌数分别为每个细胞87、45、34个.黏附拮抗试验显示,3株乳酸菌均使致病菌...     

王枣子乙素聚乳酸纳米粒的制备与质量评价

目的 对王枣子乙素聚乳酸纳米粒制备工艺和含量测定方法进行研究,并对其进行质量评价.方法 用自乳化溶剂扩散法制得王枣子乙素聚乳酸纳米粒,并对其粒径、形态、表面电位、包封率等进行研究.结果 所得王枣子乙素聚乳酸纳米粒粒径分布均匀,平均粒径为(120±10.6)nm,Zeta电位为-17.6 mV,平均包封率为(90.38±...     

Fatal Cleistanthus collinus Toxicity: A Case Report and Review of Literature

Cleistanthus collinus is an extremely toxic plant poison. We report a case of suicidal ingestion of boiled water decoction of C. collinus where the patient presented with abdominal pain and giddiness. There was persistent metabolic acidosis and fluctuation in the level of serum potassium. The ECG changes indicated a probable myocardial injury with conduction abnormality. At autopsy, the viscera were found to be congested. The toxins were detected in the viscera and blood by TLC and HPLC. Cleistanthin A and B, collinusin, and diphyllin are the principal toxic constituents of the plant. Consumption of a boiled decoction of leaves is highly toxic and, medical management of patients is mainly supportive because the molecular mechanisms of toxin action are unknown. In the recent years, C. collinus has created a considerable amount of interest because of its complex metabolites and their cytotoxic activities. Through this study, the authors have tried to highlight different properties pertaining to C. collinus.     

Repetitive TASER X26 Discharge Resulted in Adverse Physiologic Events with a Dose–Response Relationship Related to the Duration of Discharge in Anesthetized Swine Model

The objectives of our study were to investigate the dose–response relationship of the TASER X26 discharge duration in an anesthetized swine model. Fourteen swines were anesthetized and then exposed to TASER X26 discharge for 5 sec (n = 5) or for 10 sec (n = 6). The sham control group (n = 3) was anesthetized and studied using the same protocol except TASER X26 discharges during the experiments. Hemodynamic parameters were obtained. Blood pressure and total peripheral resistance decreased significantly after TASER discharge and returned to baseline value at 15 min after 5 sec of TASER discharge but did not return to baseline values during the 30‐min observation period after 10 sec of TASER discharge. Repetitive TASER X26 discharge resulted in adverse physiologic events with a dose–response relationship related to the duration of TASER X26 discharge in an anesthetized swine model.     

补肾益精法治疗远端肾小管酸中毒致低钾血症31例

目的 观察补肾益精法治疗远端肾小管酸中毒（distal renal tubular acidosis,dRTA）致低钾血症的疗效。方法 将62例dRTA患者随机分为观察组31例和对照组31例,对照组仅给予常规西医补钾治疗,观察组加用补肾益精中药进行综合治疗。比较两组的临床疗效及血清钾浓度的变化。结果 两组临床疗效的分布比较,差异具有统计学意义（P<0.05）,观察组临床疗效显著优于对照组;随着治疗时间延长,两组血钾浓度均较前一时点显著升高（P<0.05）;治疗48 h和72 h后,观察组血钾浓度显著高于对照组（P<0.05）。结论 补肾益精法联合西医补钾治疗能提高dRTA致低钾血症患者血钾水平,提高临床疗效。     

断奶仔猪胃肠道乳酸菌及芽孢杆菌的分离鉴定

为研制优良的猪用益生菌制剂,从断奶仔猪胃肠道分离乳酸菌和芽孢杆菌,结合细菌的形态特征、生理生化指标,运用16SrRNA基因序列分析方法对其进行了鉴定。结果表明,分离株WR、KR、HR、JR分别为胃、空肠、回肠、结肠源的唾液乳杆菌(Lactobacillus salivarius);ZR株为直肠源的约氏乳杆菌(Lactobacillus johnsonii);MR株为盲肠源的粪肠球菌(Enterococcus faecalis);分离株WY、SY、KY分别为胃、十二指肠、空肠源的枯草芽孢杆菌(Bacillus subtilis);HY株为回肠源的蜡样芽孢杆菌(Bacillus cere-us)。各分离株的生长曲线有明显差异,HR、ZR和WY株的生长速度较快,分别于接种后第12、12和20小时达到生长高峰期,显示了良好的培养特性。