银环蛇毒素对白血病K562细胞株凋亡诱导作用的研究

目的 探讨银环蛇毒素及其若干组分在体外对白血病K562细胞株的凋亡诱导作用。方法 采用阳离子交换层析法分离纯化银环蛇粗毒，应用MTT法、荧光显微镜和流式细胞术等研究毒素对K562细胞株的凋亡作用。结果 除Ⅳ峰毒素外，银环蛇粗毒及分离的部分组分IV峰、Ⅶ峰和Ⅷ峰等毒素的荧光显微图末见特征性的凋亡小体，DNA含量分布组方图中的二倍体峰前末见Gl细胞群。结论 银环蛇毒对K562细胞具有杀伤作用，但并非是细胞凋亡作用，而是致细胞坏死，而粗毒中的某些组分可能具有促K562细胞凋亡作用。     

THERAPEUTIC EFFECTS OF ACUPUNCTURE TREATMENTIN 96 CASES OF TRIGEMINAL NEURALGIA

Thetrigeminalnervebranchesofftheoph-thalmic,mandibularandmaxillarybranchesfromthesemilunarganglion,whicharemainsensorynerveslnnervatingtheheadandtheface.Ifanyonebranchoftheminthedistribu-tionregionsofthetrigeminalnerveisaffectedbywind-cold,pressureorinflammatorystimulation,etc.,abnormalsensationorpainwillbeinducedinthecorrespondinginnervatedregion.Clinical-ly,patholOgicchangeoftheophthalmicbranchismorecommonandmaycausepainoftheorbitandtheforehead,andlacrimation;Patientswithpainofthemaxillarybr…     

Acute bronchodilatory effect of salmeterol on methacholine-induced bronchoconstriction in childhood asthma

Abstract A review of the literature highlights the need for research, particularly on the acute bronchodilatory effect of salmeterol on bronchoconstriction in the pediatric age group. The present study attempted to evaluate the acute bronchodilatory effect of salmeterol on methacholine-induced bronchoconstriction in childhood asthma and to compare it with the effect of salbutamol. Forty-four asymptomatic children with mild-to-moderate asthma (23 boys and 21 girls; aged7–17 years) were studied. At the beginning, the baseline forced expiratory volume in 1 s (FEV₁) was measured, and the methacholine challenge was performed by doubling the dose to determine PC₂₀ (provocative concentration of inhaled methacholine required to reduce FEV! by 20%). At the same time, the transcutaneous arterial oxygen saturation (S_ao₂) was also measured. Each subject inhaled a single dose of 25 μ salmeterol (n: 23, group I) or 100 μg salbutamol (n: 21, group II) following the Sp₂ measurement. The same measurements (FEV₁, S_ao₂) were repeated 5 and 20 min after the inhalation. After inhalation of salmeterol or salbutamol, the differences between the values of FEV₁ and S_aO₂ after 5 and 20 min were insignificant in both group I and group II (P > 0.05), although there was a significant improvement in both FEV₁ and S_aO₂ after 5 and 20 min (P < 0.005). From these findings it was concluded that salmeterol can be considered as effective as salbutamol on methacholine-induced bronchoconstriction.     

Lamotrigine-induced tic disorder: report of five pediatric cases

PURPOSE: To describe the clinical spectrum of lamotrigine (LTG)-induced tics (an uncommon side effect) in children. METHODS: Retrospective analysis of patients from our hospital-based practice who developed tics while on LTG. Data obtained from medical records, interviews with parents, video-EEGs, and homemade videotapes. RESULTS: Three males and two females (range, 2.5-12 years; mean, 6.9 years) developed a movement disorder within the first 10 months of therapy (maintenance doses, 4-17 mg/kg/day). Four patients exhibited simple motor tics; one patient experienced mostly vocal (i.e., gasping sounds) tics. Laryngoscopic evaluation of one 2.5-year-old with repetitive gasping sounds was normal. In three cases, tics resolved completely within 1 month of drug cessation; tics recurred in two of these patients after reintroduction of LTG. A fourth patient experienced gradual improvement after stopping LTG over 4 months; the fifth patient's simple motor tics improved spontaneously with a reduction in medication. None of the patients had clinical features of a neurodegenerative disorder, and none met diagnostic criteria for Tourette syndrome. Two patients, however, had a diagnosis of acquired epileptic aphasia syndrome, and one patient had nonprogressive expressive and receptive language dysfunction. A fourth patient had global static encephalopathy, and the fifth patient had only attentional problems. In all patients, tics were not associated with ictal EEG changes. CONCLUSIONS: LTG may infrequently induce simple motor tics, vocal tics, or both. Patients with severe language dysfunction may be particularly susceptible to this uncommon side effect. Further studies are necessary to clarify the population at risk.     

在美欧非洲用中医治疗HIV、AIDS的体会

中医药具有纯天然、很少毒副作用和抗药性,并价廉适应面广特点,据笔者近10多年在美欧非洲几十个国家和地区的千余例HIV、AIDS病人的临床实践证实,中医中药、针灸对治疗HIV、AIDS疗效显著。     

岗梅根清喉颗粒的制备及临床疗效观察

目的研究岗梅根清喉颗粒的制备方法,并观察其临床疗效。方法与草珊瑚含片对照比较,观察其治疗咽喉炎症的临床疗效,并进行动物急性毒性试验。结果符合颗粒的质量要求。动物试验LD50>1208g生药/kg。治疗组与对照组总有效率均在85%以上,两者对咽喉炎症均具有明显的治疗作用。结论本颗粒组方合理,工艺可行,无毒性;临床疗效满意。     

158例胸部手术患者抗菌药物应用调查与分析

本文采用回顾性调查方法,将2002年1月～2003年9月胸部手术病历调出,对其使用抗菌药物的品种,用药频度,相关费用,联合用药,手术类型,切口愈合等情况进行分析评价.结果表明,158例胸部手术患者抗菌药物使用率达100%,涉及7个类别35种;联用抗菌药物达138例,人均使用抗菌药费为2587.75元,总药费与抗菌药费之比为1:0.38;平均疗程为32.28天;术后抗菌药物疗程明显偏长,联用比率偏高,有必要规范抗菌药物的应用.     

加温联合冬凌草甲素抑制肝癌细胞SMMC-7721的生长及其机制探讨

目的:探讨加温联合冬凌草甲素是否具有协同抗肝癌作用,以及二者最佳联合作用模式及其可能的相关作用机制,为临床热化疗治疗肝癌提供实验依据。方法:(1)MTT检测加温与冬凌草甲素合用时对体外培养的人肝癌细胞株SMMC-7721生长的抑制作用,并且评判二者联用是否有协同作用;(2)流式细胞仪检测细胞凋亡率;(3)免疫酶联吸附法定量检测肝癌细胞培养液中AFP;(4)全自动生化仪检测培养液中ALB、ALK。结果:加温与冬凌草甲素单用及合用时均能明显抑制肝癌细胞生长,引起肝癌细胞凋亡,明显降低细胞培养液中AFP值;二者联合作用强度大于单独应用组,并且不同的联合模式产生不同的作用(P<0.05)。结论:(1)加温与冬凌草甲素联合能产生明显协同抑制肝癌细胞生长的作用,作用大小与联合的模式有关。(2)二者抑制肝癌细胞生长的机制与细胞凋亡密切相关。(3)在肝癌的临床治疗中二者联合运用可能产生明显的抑制作用。