人精浆酸性磷酸酶对小鼠T淋巴细胞产生IL-2的影响

本文研究了从正常人精浆中分离纯化的酸性磷酸酶（ACP）对BALB／c小鼠脾脏细胞来源的T淋巴细胞产生IL-2的影响。本文采用MTT生物学测定法测IL-2活性。实验证明：人糖浆ACP对小鼠T淋巴细胞产生IL-2有明显的抑制作用（P＜0．05），并且抑制作用随ACP剂量的增加而增强。这说明了精浆中大量ACP是构成精浆免疫抑制功能的重要组成成份之一。     

Anticancer peptide Q7 suppresses the growth and migration of human endometrial cancer by inhibiting DHCR24 expression and modulating the AKT-mediated pathway

Endometrial cancer is one of the most common malignancy affecting women in developed countries. Resection uterus or lesion area is usually the first option for a simple and efficient therapy. Therefore, it is necessary to find a new therapeutic drug to reduce surgery areas to preserve fertility. Anticancer peptides (ACP) are bioactive amino acids with lower toxicity and higher specificity than chemical drugs. This study is to address an ACP, herein named Q7, which could downregulate 24-Dehydrocholesterol Reductase (DHCR24) to disrupt lipid rafts formation, and sequentially affect the AKT signal pathway of HEC-1-A cells to suppress their tumorigenicity such as proliferation and migration. Moreover, lipo-PEI-PEG-complex (LPPC) was used to enhance Q7 anticancer activity in vitro and efficiently show its effects on HEC-1-A cells. Furthermore, LPPC-Q7 exhibited a synergistic effect in combination with doxorubicin or paclitaxel. To summarize, Q7 was firstly proved to exhibit an anticancer effect on endometrial cancer cells and combined with LPPC efficiently improved the cytotoxicity of Q7.     

更年乐水丸对去卵巢大鼠骨质疏松症的早期干预作用

目的:探讨更年乐水丸治疗摘除卵巢所致雌性大鼠骨质疏松的作用机理。方法:选用55只3月龄SD雌性大鼠随机分为假手术组、模型对照组、阳性对照组、更年乐水丸低剂量组、更年乐水丸高剂量组。后4组摘除双侧卵巢,于造模后第2天开始中药灌胃,连续45 d,处死动物后,取动物左侧股骨,测定骨密度;测定血清E2、PTH、IL-6、Alp、Acp的水平。结果:更年乐水丸能增加大鼠骨密度及提高血清E2水平,降低Alp、Acp、PTH、IL-6含量。结论:更年乐水丸可改变绝经后早期骨代谢高转换状态。     

End-of-Life Care for Seriously Ill International Patients at a Global Destination Medical Center

Objective

To characterize the end-of-life care of all international patients who died at a global destination medical center from January 1, 2005, through December 31, 2015.

Periprocedural Intracardiac Echocardiography for Left Atrial Appendage Closure: A Dual-Center Experience

ObjectivesThis dual-center study sought to demonstrate the utility and safety of intracardiac echocardiography (ICE) in providing adequate imaging guidance as an alternative to transesophageal echocardiography (TEE) during Amplatzer Cardiac Plug device implantation.BackgroundOver 90% of intracardiac thrombi in atrial fibrillation originate from the left atrial appendage (LAA). Patients with contraindications to anticoagulation are potential candidates for LAA percutaneous occlusion. TEE is typically used to guide implantation.MethodsICE-guided percutaneous LAA closure was performed in 121 patients to evaluate the following tasks typically achieved by TEE: assessment of the LAA dimension for device sizing; guidance of transseptal puncture; verification of the delivery sheath position; confirmation of location and stability of the device before and after release and continuous monitoring to detect procedural complications. In 51 consecutive patients, we compared the measurements obtained by ICE and fluoroscopy to choose the size of the device.ResultsThe device was successfully implanted in 117 patients, yielding a technical success rate of 96.7%. Procedural success was achieved in 113 cases (93.4%). Four major adverse events (3 cardiac tamponades and 1 in-hospital transient ischemic attack) occurred. There was significant correlation in the measurements for device sizing assessed by angiography and ICE (r = 0.94, p < 0.0001).ConclusionsICE imaging was able to perform the tasks typically provided by TEE during implantation of the Amplatzer Cardiac Plug device for LAA occlusion. Therefore, we provide evidence that the use of ICE offered accurate measurements of LAA dimension in order to select the correct device sizes.     

Feasibility of a closed‐system cell processor (ACP215) for automated preparation of washed platelet concentrates

Background and Objectives This study was aimed at evaluating the feasibility of the ACP215 closed‐system cell processor for preparing washed platelet concentrates. Material and Methods Platelet washing was performed with either the ACP215 system or the manual technique with M‐sol. Plasma protein removal and platelet recovery were estimated, and the washed platelet concentrates were stored for 5 days. Samples were collected after washing and on days 1, 3 and 5 of storage to determine the effects of the washing methods on the in vitro platelet qualities (platelet count, platelet volume, pH, glucose and lactate concentrations, hypotonic shock response, aggregation response and CD62P expression level). Results Platelet recovery was 86·9 ± 2·1% and 85·9 ± 1·9% (P = 0·305), and plasma protein removal was 95·8 ± 0·9% and 96·9 ± 0·7% (P = 0·016) after washing with the ACP215 system and manual technique, respectively. No statistically significant differences in the in vitro platelet qualities were observed between the washing methods. Conclusion The ACP215 system is a feasible alternative to manual, labour‐intensive, techniques for preparing washed platelet concentrates.     

Novel compounds targeting InhA for TB therapy

Tuberculosis (TB) is described as lethal disease in the world. Resistant to TB drugs is the main reason to have unfavourable outcomes in the treatment of TB. Therefore, new agents to replace existing drugs are urgently needed. Previous reports suggested that InhA inhibitors, an enoyl-ACP-reductase, might provide auspicious candidates which can be developed into novel antitubercular agents. In this review, we explain the role of InhA in the resistance of isoniazid. Furthermore, five classes of InhA inhibitors, which display novel binding modes and deliver evidence of their prosperous target engagement, have been debated.     

Common variants in the CLDN2-MORC4 and PRSS1-PRSS2 loci confer susceptibility to acute pancreatitis

Background/Objectives

Acute pancreatitis (AP) is one of the most common gastrointestinal disorders often requiring hospitalization. Frequent aetiologies are gallstones and alcohol abuse. In contrast to chronic pancreatitis (CP) few robust genetic associations have been described. Here we analysed whether common variants in the CLDN2-MORC4 and the PRSS1-PRSS2 locus that increase recurrent AP and CP risk associate with AP.

Intracardiac Versus Transesophageal Echocardiographic Guidance for Left Atrial Appendage Occlusion: The LAAO Italian Multicenter Registry

Objectives

This study sought to evaluate the feasibility, safety, and efficacy of intracardiac echocardiography (ICE)–guided versus transesophageal echocardiography (TEE)–guided left atrial appendage occlusion (LAAO) by the use of Amplatzer Cardiac Plug or Amulet devices included in a large Italian registry.

吸烟对小鼠睾丸酶的影响

目的观察吸烟对小鼠睾丸酶活性的影响,探讨吸烟致睾丸损伤的可能机制。方法用分光光度法检测睾丸组织匀浆中酸性磷酸酶(ACP)、乳酸脱氢酶(LDH)和一氧化氮合成酶(NOS)的活性。结果长时间吸烟可引起睾丸组织匀浆中酸性磷酸酶(ACP)、乳酸脱氢酶(LDH)的活性显著下降,一氧化氮合成酶(NOS)的活性显著升高。结论吸烟对睾丸中一些酶活性的影响可能是其引起雄性生殖损伤的机制之一。