建立国际航行船舶媒介生物监测预警系统的思路

随着全球经济一体化和海运业的蓬勃发展，媒介生物以国际航行船舶、集装箱、货物等为载体侵入我国，对我国人民和动物的健康构成极大威胁。为了保障我国的卫生安全和经济安全、应对国外技术性贸易措施和履行即将实施的新《国际卫生条例》，在科学性和实用性原则的基础上，提出建立国际航行船舶媒介生物监测预警系统。该系统框架包括4部分：媒介生物信息模块、国际航行船舶媒介生物监测模块、媒介生物风险评估模块和国际航行船舶媒介生物风险预测管理模块。实现这一系统，我们必须：采用相同的方法和标准、长期坚持媒介生物监测工作、开发应用计算机软件、加大财力投入和培养人才。     

头孢尼西钠细菌内毒素检查方法的研究

目的：通过头孢尼西钠细菌内毒素检查方法的研究，探讨内毒素检查限值的适用性。方法：采用《中国药典》2000年版二部附录细菌内毒素检查法，动态比浊法和凝胶法进行试验。结果：部分头孢尼西钠原料细菌内毒素的量在0．15EU／mg-0．35EU／mg之间。结论：有必要统一头孢尼西钠的检测限值。     

Intranasal immunization with inactivated SARS-CoV (SARS-associated coronavirus) induced local and serum antibodies in mice

SARS-CoV (severe acute respiratory syndrome-associated coronavirus) strain GZ50 was partially purified and inactivated with 1:2000 formaldehyde. In cell culture the inactivated virus blocked the replication of live virus by decreasing the TCID(5.0) of the live virus 10(3.6) to 10(4.6) times. Inactivated GZ50 was used to immunize mice intranasally either alone, or after precipitation with polyethylene glycol (PEG), or with CpG, or CTB as an adjuvant. The titer of serum neutralizing antibodies was up to 1:640. In mice immunized with adjuvants or PEG precipitated GZ50, specific IgA was detected in tracheal-lung wash fluid by immunofluorescence. Though serum antibodies were detected, no anti-SARS-IgA could be detected in mice immunized only with inactivated GZ50. The roles of adjuvants in intranasal immunization with inactivated. SARS-CoV is discussed.     

Sex dependent pharmacokinetics,tissue distribution and excretion of peimine and peiminine in rats assessed by liquid chromatography–tandem mass spectrometry

Ethnopharmacological relevance

Fritillaria thunbergii Miq. has been traditionally used in China as antitussive and expectorant herbs, and newly used in the clinical treatment of leukemia in recent years.

Aim

To investigate whether gender exerted a significant influence on the pharmacokinetics, tissue distribution and excretion of peimine and peiminine in Sprague-Dawley rats who were given a single oral administration of 4.25 g/kg Fritillaria thunbergii Miq. extract.

Materials and methods

Sprague-Dawley rats were assigned into two groups based on the gender and orally administered 4.25 g/kg Fritillaria thunbergii Miq. extract for each individual pharmacokinetics, tissue distribution and excretion study.

Results

Compared with female rats, peimine and peiminine were eliminated slowly from male rat plasma, and significant gender-related differences were observed in the pharmacokinetic parameters. Drug blood and tissue levels in male rats were significantly higher than the female counterparts except for several tissues, such as fat, muscle and skin. Gender also exerted a significant influence on the urine excretion but such effect was not observed in the feces excretion study.

Conclusions

Gender exerted a significant influence on the pharmacokinetics, tissue distribution and urine excretion of peimine and peiminine. It is assumed that the sex-associated differences of peimine and peiminine in rats might be mainly result from sex-dependent expression and activity of drug metabolism enzymes and P-glycoprotein.     

野外γ谱法测定广东高本底地区土壤中放射性核素浓度及照射量率

用一带微型计算机的NaI(T1)γ谱测量系统, 对高本底及对照地区的32个点进行现场γ谱测置.确定各测量点现场土壤中各天然放射性核素的平均浓度及单个核案对照射量率的贡献。并给出各辐射场的总照射量率。现场测量前, 在海面上测定了本底谱。     

Wiltse肌间隙入路与常规入路治疗胸腰椎骨折的临床比较

目的：探讨经Wiltse肌间隙入路治疗胸腰椎骨折的可行性.方法：回顾性分析48例胸腰椎骨折患者的病历资料,经常规手术入路行后路椎弓根螺钉内固定术者25例为对照组（A组）;经Wiltse肌间隙入路行椎弓根螺钉内固定者23例为观察组（B组）.比较2组患者的手术时间、切口长度、术中出血量、引流量、术后疼痛视觉摸拟评分、Cobb＇s角及术后日本骨科协会评分.结果：A组患者的手术时间、出血量、引流量术后VAS评分均大于B组[（80.04±9.650）min,（60.48±6.374）min,t=8.210,P=0.000;（280.40±56.60）mL,（180.43±60.11）mL,t=5.934,P=0.000;（161.60±44.31）mL,（120.00±28.28）mL,t=3.838,P=0.000;（5.792±1.444）,（3.087±1.203）,t=3.838,P=0.000];2组患者的切口长度、术后JOA评分及手术前后Cobb＇s角比较,差异均无统计学意义[（10.40±1.49）cm,（10.33±1.49）cm,t=0.171,P=0.865;（27.280±1.487）,（26.348±1.921）,t=1.889,P=0.065;（22.060±4.887）,（22.870±5.513）,t=-0.539,P=0.592;（6.204±1.737）,（6.844±1.359）,t=-1.412,P=0.165].结论：与常规手术入路相比,经Wiltse肌间隙入路内固定治疗胸腰椎骨折具有手术时间短、出血量少及术后疼痛程度低的优点,值得推广.     

Synthesis and Evaluation of Novel Erlotinib–NSAID Conjugates as More Comprehensive Anticancer Agents

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目的:探究加味参芪寿胎汤联合优甲乐治疗治疗早期先兆流产合并亚临床甲减的临床疗效及其对外周血中高迁移率族蛋白B1(High Mobility Group Box 1 Protein,HMGB1)、晚期糖基化终末产物受体(Receptor for Advanced Glycationend Product,RAGE)的影响。方法:选取2015年3月到2016年3月收治患早期先兆流产合并亚临床甲减及符合本研究标准的患者78例作为观察对象,按照随机数字表法分为观察组和对照组,每组39例。观察组给予加味参芪寿胎汤联合优甲乐治疗,对照组给予黄体酮注射液及优甲乐治疗。观察2组患者治疗前后血清β-人绒毛膜促性腺激素、雌二醇、孕酮、促甲状腺激素及外周血HMGB1及RAGE水平变化。结果:治疗后观察组HMGB1、RAGE阳性反应率优于对照组,差异有统计学意义(P0.05),观察组总有效率为84.62%优于对照组69.23%,组间比较,差异有统计学意义(P0.05),治疗后观察组血清β-人绒毛膜促性腺激素(β-human Chorionic Gonadotrophin,β-HCG)、雌二醇(Estradiol2,E2)、孕酮(Progesterone,P)及促甲状腺激素(Thyroid Stimulating Hormone,TSH)指数优于对照组,差异有统计学意义(P0.05)。结论:加味参芪寿胎汤联合优甲乐治疗早期先兆流产合并亚临床甲减具有显著临床效果,可帮助患者改善临床症状,维持患者黄体,恢复正常妊娠水平,降低促甲状腺激素分泌,改善甲状腺功能,降低外周血中HMGB1、RAGE细胞因子指数,帮助机体内该炎性介质因子的分泌,增强机体免疫能力,充分调节机体内体液和细胞免疫,促使机体免疫状态相对平稳。     

中医腹诊的研究进展

腹诊是中医传统诊法之一,是"望、闻、问、切"四诊在胸腹部的综合运用。本文腹诊的概念、腹诊的源流、腹诊内容、腹诊的应用以及腹诊的现代研究等方面进行阐述,使腹诊得到更广泛地应用,以促进其发展。     

广藿香化学成分的研究

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