逊克县边疆俄罗斯民族村蜱携带斑点热群立克次体的调查

目的 调查黑龙江逊克县边疆俄罗斯民族村蜱携带斑点热群立克次体的调查.方法 采集2017年4-6月418只活蜱样本,利用PCR方法分别扩增斑点热群立克次体(SFGR)3种不同目的 基因的特异性片段,通过基因测序进一步鉴定.结果 在所有蜱中共检出斑点热群立克次体核酸阳性样本93例,经SFGR 3种不同目的 基因测序对比确定...     

高龄冠心病合并心房颤动患者行非体外循环冠状动脉旁路移植术中左心耳处理的回顾性队列研究

目的 本文旨在探讨左室射血分数(LVEF)降低的高龄冠心病合并心房颤动(房颤)患者在非体外循环冠状动脉旁路移植术(OPCABG)中同期处理左心耳的手术技巧及效果评价.方法 纳入2013～ 2018年,84例OPCABGLVEF降低(＜50％)的高龄(年龄≥70岁)冠心病合并房颤患者在我科行非体外循环冠脉搭桥术.男54例...     

日本汉方制剂及其特点与中药新药研究的思考

通过对日本汉方制剂目录、分类、审批、生产销售等基本情况的介绍,以及对其药材、剂型、工艺和质量控制等方面特点的分析,提出我国经典名方制剂研究应注意结合临床应用遴选经典名方,尊重中医药理论指导和中医临床应用特点,重视上市后再研究,加强质量控制研究,积极关注已上市"经典名方"制剂的再评价;中药新药研究应加强药材/饮片源头质量控制,基于人用历史开展中药复方新药研究,以"质量源于设计"的思路和理念开展中药新药的质量控制,加强工艺过程控制和质量标准研究。     

Antiproliferative triterpenes from the leaves and twigs of Juglans sinensis on HSC-T6 cells

Bioassay-guided fractionation of an 80% MeOH extract of leaves and twigs of Juglan sinensis has resulted in the isolation of four new triterpenes (1-4) and 17 known triterpenes (5-21). The new compounds were determined to be 1-oxo-3β,23-dihydroxyolean-12-en-28-oic acid 28-O-β-D-glucopyranoside (1), 1-oxo-3β-hydroxyolean-18-ene (2), 3β,23-dihydroxyurs-12-en-28-oic acid 28-O-β-D-glucopyranoside (3), and 3β,22α-dihydroxyurs-12-en-28-oic acid 28-O-β-D-glucopyranoside (4) by spectroscopic analysis. Compounds 2, 13, 15, and 21 showed antiproliferative activities (14.2, 14.8, 15.6, and 11.0% at 100 μM, respectively) in HSC-T6 cells. Flow cytometry assays revealed that these compounds inhibited HSC-T6 proliferation by inducing apoptosis.     

Carthamus tinctorius L. extract activates insulin‐like growth factor‐I receptor signaling to inhibit FAS‐death receptor pathway and suppress lipopolysaccharides‐induced H9c2 cardiomyoblast cell apoptosis

Carthamus tinctorius L. (Compositae) is used in Chinese medicine to treat heart disease and inflammation. In our previous study, we found that C. tinctorius L. inhibited lipopolysaccharides (LPS)‐induced tumor necrosis factor‐alpha (TNF‐α) activation, JNK expression, and apoptosis in H9c2 cardiomyoblast cells. The present study was performed to investigate the protective effect of C. tinctorius extract (CTF) on LPS‐challenged H9c2 myocardioblast cell and to explore the possible underlying mechanism. Cell viability assay showed that LPS treatment decreased the cell viability of H9c2 cell, whereas CTF treatment reversed LPS cytotoxicity in a dose‐dependent manner, especially in the LPS + CTF 25 (μg/mL) group. LPS treatment‐induced apoptosis was determined by transferase‐mediated dUTP nick end labeling assay, and by Western blot. LPS‐induced apoptotic bodies were decreased following CTF treatment. Expression of TNF‐α, FAS‐L, FAS, FADD, caspase‐8, BID, and t‐BID was significantly increased in LPS‐treated H9c2 cells. In contrast, it was significantly suppressed by the administration of CTF extract. In addition, CTF treatment activates antiapoptotic proteins, Bcl‐2 and p‐Bad, and downregulates Bax, cytochrome‐c, caspase‐9, caspase‐3, and apoptosis‐inducing factor expression. Furthermore, CTF exerted cytoprotective effects by activating insulin‐like growth factor‐I (IGF‐I) signaling pathway leading to downregulation of the apoptotic proteins involved in FAS death receptor pathway. In addition, AG1024 and IGF‐I receptor (IGF‐IR) inhibitor and siRNA silencing reverses the effect of CTF implying that CTF functions through the IGF‐IR pathway to inhibit LPS‐induced H9c2 apoptosis. These results suggest that treatment with CTF extract prevented the LPS‐induced apoptotic response through IGF‐I pathway.     

TCD在锁骨下动脉盗血综合征诊断中的临床研究

目的探讨经颅多普勒超声(TCD)对锁骨下动脉盗血综合征(SSS)的诊断价值。方法回顾性总结100例经TCD检查诊断的锁骨下动脉(Sub-A)严重狭窄或闭塞患者。用经颅多普勒超声仪检测双侧椎动脉血流速度及频谱的变化,根据同侧椎动脉(Ip-VA)TCD检测的血流方向,将盗血程度分为:无盗血(Ip-VA完全正向)、Ⅰ度盗血(Ip-VA收缩期有切迹)、Ⅱ度盗血(Ip-VA收缩期反向,舒张期正向)和Ⅲ度盗血即完全盗血(Ip-VA完全反向)。盗血途径:基底动脉参与盗血(基底动脉呈盗血频谱)或不参与盗血两种。结果经TCD检查无盗血35例,Ⅰ度盗血20例,Ⅱ度盗血15例,Ⅲ度盗血30例。结论 TCD是诊断SSS及盗血程度的可靠方法,适用于临床诊断。     

腰骶段穴位对不稳定膀胱调节的穴位特异性研究

目的通过临床随机对照研究,观察针刺肾俞、会阳、肾俞加会阳对不稳定膀胱(USB)主要症状的影响,探索针刺不同穴位治疗USB的穴位特异性。方法将89例USB患者随机分为三组,即肾俞组、会阳组和肾俞加会阳组,以I-PSS积分为观察指标,分别在治疗3次、治疗6次后进行疗效评定和组间比较。结果(1)肾俞组、会阳组和肾俞加会阳组均能明显改善USB患者I-PSS总积分(P<0.05),会阳组和肾俞加会阳组疗效优于肾俞组(P<0.05)。(2)肾俞组、会阳组和肾俞加会阳组的有效率分别为50.0%、82.8%和90.0%。但会阳组和肾俞加会阳组要明显高于肾俞组(P<0.05)。结论会阳穴、肾俞穴、肾俞加会阳穴均能调节USB患者排尿紊乱症状,改善生活质量。并且以肾俞加会阳穴治疗效应最显著。     

Vertical split fracture of the vertebral body following oblique lumbar interbody fusion: A case report

Rationale:Oblique lumbar interbody fusion (OLIF) is an effective and safe surgical technique widely used for treating spondylolisthesis; however, its use is controversial because of several associated complications, including endplate injury. We report a rare vertebral body fracture following OLIF in a patient with poor bone quality.Patient concerns:A 72-year-old male patient visited our clinic for 2 years with lower back pain, leg radiating pain, and intermittent neurogenic claudication.Diagnoses:Lumbar magnetic resonance imaging revealed L4-5 stenosis.Intervention:We performed OLIF with percutaneous pedicle screw fixation and L4 subtotal decompressive laminectomy. We resected the anterior longitudinal ligament partially for anterior column release and inserted a huge cage to maximize segmental lordosis. No complications during and after the operation were observed. Further, the radiating pain and back pain improved, and the patient was discharged. Two weeks after the operation, the patient visited the outpatient department complaining of sudden recurred pain, which occurred while going to the bathroom. Radiography and computed tomography revealed a split fracture of the L5 body and an anterior cage displacement. In revision of OLIF, we removed the dislocated cage and filled the bone cement between the anterior longitudinal ligament and empty disc space. Further, we performed posterior lumbar interbody fusion L4-5, and the screw was extended to S1.Outcomes:After the second surgery, back pain and radiating pain in the left leg improved, and he was discharged without complications.Lesson:In this case, owing to insufficient intervertebral space during L4-5 OLIF, a huge cage was used to achieve sufficient segmental lordosis after anterior column release, but a vertebral body coronal fracture occurred. In patients with poor bone quality and less flexibility, a huge cage and over-distraction could cause a vertebral fracture; hence, selecting an appropriate cage or considering a posterior approach is recommended.