Cardioprotective effects of sinomenine in myocardial ischemia/reperfusion injury in a rat model

BackgroundIschemia reperfusion (I/R) play an imperative role in the expansion of cardiovascular disease. Sinomenine (SM) has been exhibited to possess antioxidant, anticancer, anti-inflammatory, antiviral and anticarcinogenic properties. The aim of the study was scrutinized the cardioprotective effect of SM against I/R injury in rat.MethodsRat were randomly divided into normal control (NC), I/R control and I/R + SM (5, 10 and 20 mg/kg), respectively. Ventricular arrhythmias, body weight and heart weight were estimated. Antioxidant, inflammatory cytokines, inflammatory mediators and plasmin system indicator were accessed.ResultsPre-treated SM group rats exhibited the reduction in the duration and incidence of ventricular fibrillation, ventricular ectopic beat (VEB) and ventricular tachycardia along with suppression of arrhythmia score during the ischemia (30 and 120 min). SM treated rats significantly (P < 0.001) altered the level of antioxidant parameters. SM treatment significantly (P < 0.001) repressed the level of creatine kinase MB (CK-MB), creatine kinase (CK) and troponin I (Tnl). SM treated rats significantly (P < 0.001) repressed the tissue factor (TF), thromboxane B2 (TXB2), plasminogen activator inhibitor 1 (PAI-1) and plasma fibrinogen (Fbg) and inflammatory cytokines and inflammatory mediators.ConclusionOur result clearly indicated that SM plays anti-arrhythmia effect in I/R injury in the rats via alteration of oxidative stress and inflammatory reaction.     

肾上腺嗜铬细胞瘤的临床病理特征分析

目的探讨肾上腺嗜铬细胞瘤(PCC)的临床病理特征。方法收集22例PCC患者的临床病历资料,分析临床表现、病理特征、免疫组织化学特征、鉴别诊断、治疗和预后。结果患者中位年龄46岁(23~67岁);男性13例、女性9例;临床常见症状包括高血压、腹胀腹痛;Ⅰ期10例、Ⅱ期12例;中位随访时间为72.5个月(14.9~117.7个月),其中1例复发、1例转移,其余患者均未发生复发及转移;CgA、Syn和CD56阳性表达率分别为95.2%、95.2%、100.0%,CK、Melan-A阴性表达率分别为90.5%和100.0%,Ki-67增殖指数低于10%,S100阳性表达率为76.2%。结论肾上腺PCC发病率低,但有转移和复发的可能,需要定期随访。     

代谢酶在嗜铬细胞瘤/副神经节瘤发病机制中的研究进展

嗜铬细胞瘤/副神经节瘤(PPGL)为临床上少见的儿茶酚胺内分泌肿瘤,大多数为良性,有10%~25%为恶性并转移。三羧酸循环为能量供应的途径之一,当循环中任何酶突变会引起代谢改变,促进细胞增殖与存活,与肿瘤的发生发展、侵袭和转移相关。代谢酶相关突变参与PPGL发病机制,可成为PPGL靶向治疗的方向。     

异位葡萄胎妊娠早期临床特点及诊疗：附二例报道

异位葡萄胎在临床上可以引起严重的并发症，其发病率极低，且易被漏诊、误诊。本文报道了2例异位葡萄胎患者的临床表现及病理诊断结果。患者1为部分性葡萄胎，患者2为完全性葡萄胎合并宫颈恶性肿瘤，两例患者临床上均表现为异位妊娠，并首先按照异位妊娠治疗，造成了误诊、误治；均采取手术治疗，术后病理检查确诊为异位葡萄胎。后续又补充治疗，得以痊愈。以上两例患者的诊断和治疗上均有欠缺，本文结合相关文献对病例资料进行分析总结，阐述异位葡萄胎典型临床表现和最新治疗研究进展，以期引起临床医师的重视，为早期诊断及治疗提供支持。     

Ectopic Cervical Thymoma Excised through a Transcervical Approach Combined with Video-assisted Thoracoscopic Surgery: A Case Report

Ectopic cervical thymoma (ECT) is a rare tumor. We present a case of 56-year-old woman with an ECT in the anterior neck that was correctly diagnosed preoperatively. The patient had no symptoms of myasthenia gravis or other immune disorders, and the tumor was not invading any adjacent structures. We performed tumor resection and thymectomy through a transcervical approach using video-assisted thoracoscopic surgery with a multi-access single port. To our knowledge, this is a novel combined technique for the resection of an ECT.