肿节风注射液抗小鼠前胃癌FC的作用及毒性

目的 研究肿节风注射液(zJF)抗小鼠前胃癌FC的作用及毒性。方法 建立小鼠体内荷小鼠前胃癌FC模型，测定zJF的抑制率和体重、胸腺指数和脾指数以及给药前后外周血白细胞的变化，同时研究zJF对小鼠前胃癌FC细胞株生长的抑制作用。结果 zJF具有明显的抗肿瘤作用，ipZJF0.2g/kg、1g/kg、0.2g/kg的抑瘤率分别为39．83％、64．41％、53．39％，又能明显升高荷瘤小鼠的脾指数和胸腺指数，升高外周血白细胞，增加荷瘤小鼠的体重。zJFl00mg／mL、50mg／mL、25mg／mL、12．5mg／mL、6．25mg／mL对小鼠前胃癌FC细胞增殖的抑制率分别为65％、63％、57％、55％、44％。结论 zJF体内、外对小鼠前胃癌FC均具有抗肿瘤作用，并可增加荷瘤鼠免疫器官指数及外周血白细胞数。     

八味地黄汤各药味对附子生物碱影响的电喷雾质谱研究

目的以八味地黄汤为研究对象,考察各药味对附子生物碱的影响规律,揭示附子配伍组方的科学内涵,为科学阐释八味地黄汤配伍规律提供化学依据。方法利用电喷雾质谱技术分别对八味地黄汤,附子加山茱萸、山药、肉桂、丹皮、泽泻、地黄、茯苓共煎液以及次乌头碱加山茱萸、山药共煎液进行系统考察。结果次乌头碱加山药、山茱萸,附子加山药等共煎液中次乌头碱含量较高;八味地黄汤、附子加山茱萸共煎液中次乌头碱含量较低;肉桂、丹皮、泽泻、地黄、茯苓等对附子生物碱的影响不明显。结论八味地黄汤中乌头碱和中乌头碱水解和溶出比较完全,次乌头碱的含量较少,次乌头碱的减少是由于水解以及溶出受到抑制导致。其中山茱萸对制附子起减毒作用,其减毒机制主要是抑制了制附子中次乌头碱的溶出。而山药则能导致附子毒性增加。     

抗HIV和HBV新药L-D4FC

L-D4FC((-)-β-L-2′,3′-双脱氢-2′,3′-双脱氧-5-氟胞苷)是目前报道中最具效力的抗病毒逆转录酶抑制剂,正处于Ⅱ期临床试验中.最新临床研究结果显示,L-D4FC具有疗效高、耐药性好、抗病毒谱宽、不良反应小等优点.该药兼具抗HBV和HIV双重活性,有可能成为最佳的抗HBV和HIV核苷类似物抑制剂.综述了L-D4FC的药理作用、临床评价及文献合成方法.     

Febrile convulsions increase risk of Tourette syndrome

PurposeFebrile convulsion (FC) and Tourette syndrome (TS) are both common neurological disorders in infants and children. Both disorders share clinical similarities, such as paroxysmal symptoms with normal neurodevelopment and expected remission over time. This population-based study investigated the association between FC with TS during childhood neurodevelopment.MethodWe used the Taiwan National Health Insurance Research Database to conduct a retrospective cohort analysis on 1586 FC patients. A reference cohort of 6344 non-FC patients, matched for age, sex, urbanization level, parental occupation, and index year, was used for comparison. The risk of the occurrence of TS in FC patients was assessed using a Cox proportional hazard regression model.ResultsThe overall incidence of TS was higher in the FC cohort than in the non-FC cohort (28.5 vs 13.9 per 10,000 person-years; adjusted hazard ratio = 1.91, 95% confidence interval = 1.32–2.75). The associated risk factors for FC patients to develop TS were boys, children living in rural areas, and children whose parents held blue-collar positions. Moreover, the risk of TS in FC patients rose from 0.89 to 16.0 (trend test P < 0.0001) when the frequency of FC-related medical visits increased from 1 to 2 times to more than 4 times. The adjusted hazard ratio for TS in related to FC-related medical visits was 1.02 (95% CI = 1.02–1.03) per one frequency increment.ConclusionFC may increase the risk of subsequent TS occurrence in children. Children who had frequent medical visits for FC were particularly vulnerable.     

Genomic Analysis Reveals Distinct Subtypes in Two Rare Cases of Primary Ovarian Lymphoma

Primary (localized) non-Hodgkin lymphoma (NHL) of the ovary is extremely rare; only a few cases have been reported in the literature. We report two cases of primary ovarian lymphoma (POL), one involving bilateral ovaries in a 15-year-old girl and other involving one ovary in a 5-year-old girl. This report describes detailed clinical, histopathological, and imaging findings, along with the review of literature of primary diffuse large B-cell lymphoma (DLBCL) arising from an ovary. In addition, we describe findings of targeted capture panel sequencing on both tumors and identify the major genetic mutations that are recurrently mutated in pan-cancers. Compared to the genomic mutation features of major subtypes of DLBCL, we distinguish that each POL belongs to distinctive subtypes, GCB (germinal center B-cell subtype) DLBCL and ABC (activated B-cell subtype) DLBCL, respectively. The findings from the genomic analysis may help to understand the pathogenesis of POL and to guide potential targeted therapy in the future.     

手足口病伴神经系统症状85例分析

目的：探讨手足口病伴早期神经系统症状患者的临床特征及结局。方法对85例手足口病住院病例的临床表现、实验室检查、治疗转归及病原学等资料进行分析,其中热性惊厥（FC）62例,占72.94%,HFMD重症早期（易惊、肢体抖动、嗜睡）23例,占27.06%。结果（1）FC组主要表现为在发热第一天出现1-3次抽搐,持续1-10分钟不等,发作停止后神志恢复正常,无阳性病理神经征,部分有既往史和家族惊厥史;重症早期组主要表现为病后3-4天出现易惊、肢体抖动、嗜睡,于治疗后1-3天正常,无阳性病理神经征。（2）两组发热及皮疹持续时间的差异均无明显统计学意义,P均＞0.05。（3）多数患者存在血白细胞、C反应蛋白、糖升高及低钠血症,部分有心肌酶谱升高、心电图异常,以FC组为主。（4）病原检测：EV71-RNA（+）45例（52.94%）,CoxA 16-RNA（+）19例（22.35%）,肠道病毒通用核酸（+）12例（14.12%）,余9例（10.59%）检测均阴性,无交叉阳性结果。（5）平均住院5.86±1.89天,随访均未见后遗症。结论早期识别HFMD伴神经系统症状患者的病情及病因,有助于指导治疗及判断预后。     

Correlations between stress,anxiety and depression and sociodemographic and clinical characteristics among outpatients with heart failure

AimTo describe and investigate correlations among anxiety, stress and depression and identify their relationship with sociodemographic and clinical characteristics of patients with heart failure.

Flow cytometry evaluation of in vitro cellular necrosis and apoptosis induced by silver nanoparticles

Particles possess unique properties in the nanoscale, e.g., enhanced catalytic activity, high surface area, and light emission/absorption properties, that might result in interference with colorimetric in vitro cytotoxicity assays such as MTT, XTT or MTS. Alternatively, assays that do not use spectrophotometric detection, such as trypan blue exclusion or flow cytometry (FC) based assays, are less likely to be influenced by nanoparticle interference. The aim of this study was to evaluate FC assays to assess the cytotoxicity of three different sizes (10, 100, or 200 nm) of silver nanoparticles (AgNPs) at different mass concentrations (1, 25, or 50 ug/ml) in L-929 fibroblast cells. After 4 h and 24 h exposure, cell necrosis and apoptosis were assessed using 7-AAD and Annexin V dyes, respectively, with FC. The data indicate that cell necrosis and apoptosis in AgNP-exposed fibroblasts depends on dose, exposure time, and AgNP size. The data indicate that AgNPs produced a dose- and time-dependent decrease in cell viability; however, 10 nm AgNPs were significantly more toxic than larger-sized particles. Thus, standard FC assays can be utilized to assess apoptosis and necrosis in response to nanomaterial exposure.     

重组人Ⅱ型肿瘤坏死因子受体-体融合蛋白联合甲氨蝶呤对改善病情抗风湿药治疗无效活动性类风湿关节炎的疗效

目的观察重组人Ⅱ型肿瘤坏死因子受体．抗体融合蛋白（rhTNFR：Fc，益赛普）联合甲氨蝶呤（methotrexate，MTX）对改善病情抗风湿药（disease—modifying antirheumatic drug，DMARD）无效类风湿关节炎（rheumatoid arthritis，RA）患者的疗效。方法DMARD治疗效果不佳的活动性RA患者64例，根据患者性别、年龄、病程及疾病活动程度将患者随机分为具有可比性的两组。试验组32例，予每周2次皮下注射rhTNFR：Fc 25mg／次．同时口服MTX 15mg／周；对照组32例，13服泼尼松5～10mg／d，同时口服MTX1 5mg／周。疗程12周。疗效评价采用美国风湿病学会（ACR）疗效评定标准。结果治疗第4、8和12周，试验组ACR20有效率（45．2％、54．8％和64．5％）均显著高于对照组（16．1％、19．4％和22．6％）（P〈0．05）。治疗第8和12周试验组ACR50有效率亦显著高于对照组（P〈0．05）。结论相对于应用小剂量激素联合甲氨蝶呤，rhTNFR：Fc联合甲氨蝶呤治疗DMARD无效的RA效果更佳。