阿奇霉素治疗细菌性感染的临床疗效

目的:评价注射用阿奇霉素治疗细菌性感染的有效性及安全性。方法:60例呼吸系统和泌尿系统细菌感染性疾病患者随机分为治疗组和对照组,每组30例,治疗组静滴阿奇霉素250 mg,qd,疗程5 d。对照组静滴头孢噻肟钠2 g,qd,疗程7d。结果:治疗组与对照组治疗细菌感染性疾病的有效率分别为90.0%与80.0%,两组比较无统计学差异(P>0.05);细菌清除率分别为89.3%与62.1%,两组比较有统计学差异(P<0.05);不良反应发生率均为6.7%。结论:注射用阿奇霉素治疗细菌性感染疗效高、安全性好。     

南方医院门诊病人喹诺酮类药物使用调查

目的评估南方医院门诊病人喹诺酮类药物的使用情况.方法收集2002年全部门诊处方252 580张,挑选含喹诺酮类药物的处方10 436张,对科室、年龄分布、药物利用指数、用药天数、抗微生物药物联合用药等进行统计分析.结果本院喹诺酮类药物的使用以左氧氟沙星、氧氟沙星、诺氟沙星、环丙沙星为主,药物利用指数大部分合乎要求.人均使用喹诺酮类药物天数为(7.69±6.27) d.结论我院喹诺酮类药物在使用对象及抗微生物药物联合应用上仍存在不合理现象.     

Hyporetinolemia and acute phase proteins in children with and without xerophthalmia

BACKGROUND: The relations among hyporetinolemia, acute phase proteins, and vitamin A status in children are unclear. OBJECTIVE: The objective was to examine the relations between acute phase proteins and plasma retinol concentrations in children with and without clinical vitamin A deficiency (Bitot spots and night blindness). DESIGN: The study was a nonconcurrent analysis of acute phase protein concentrations and other data from a previous clinical trial. Preschool children, 3-6 y of age, with (n = 118) and without (n = 118) xerophthalmia were assigned to receive oral vitamin A (60 mg retinol equivalent) or placebo and were seen at 5 wk. All children received oral vitamin A (60 mg retinol equivalent) at 5 wk. RESULTS: At baseline, alpha(1)-acid glycoprotein (AGP) was elevated in 42.9% and 23.5% (P < 0.003) and C-reactive protein (CRP) was elevated in 17.7% and 13.7% (NS) of children with and without xerophthalmia, respectively. Hyporetinolemia (retinol < 0.7 micromol/L) occurred in 61.0% and 47.4% (P < 0.04) of children with and without xerophthalmia, respectively. A history of fever, a history of cough, and nasal discharge noted on examination were each associated with elevated acute phase proteins. Vitamin A supplementation increased plasma retinol at 5 wk but had no significant effect on concentrations of acute phase proteins. CONCLUSIONS: Elevated acute phase protein concentrations and infectious disease morbidity are closely associated during vitamin A deficiency.     

STUDIES OF THE CHARACTERISTIC FEATURES OF KI-1 POSITIVE NON-HODGKIN'S LYMPHOMA

Ki-lantigen(CD3o)waslO5oOo/12oooOglycoproteindistinguishedbymonoclonalantibodyKi-lwhichwasmadefromHodgkin'sdisease(HD)cellsstrainL-428,'eXPressedonHDcellsandReed-Sternberg(R-S)cellsatfirstthoughtItwasfoundbySteinandothersinl985,whonamedKi-lstrongpositiveNHLasKi-llymphoma,thatKi-lantigenwasalsoexpressedonsomeNHL.2Theresearchesonthisspecialtypeoflymphomahavealreadyappearedabroad.WehavecollectedfivecasesofKi-lpositiveNHLandnowdiscusstheirclinicalhistopathologicalandimmunophenotypicfe…     

Experiment study on combined free periosteum grafting and new reconstituted bone xenograft in repairing segmental defects

Segmental bone defects in long bones often pose achallenge tO their sMcal ~nt, and the vasculallzedperiosted po used either alone or in combination withother ~ materials has been Preferred as a uSeals solution to this Problems"'l. HOwever, the use Of vascularized graft has to resort to ndcrosuopcal tecboqUes, Whichmakes it difficult tO populallze this OPe~ in the graSsests level intitutions. We Pimeeded with combined useOf free Periosteum and new reconshtuted bine xenograft(NRBX) in re…     

增殖细胞核抗原在不同分化口腔鳞癌组织中的表达

目的 研究增殖细胞核抗原（ＰＣＮＡ）在口腔鳞癌（ＯＳＣＣ）中的表达及其临床病理学意义。方法 采用免疫组化Ｓ－Ｐ法对６５例不同分化的ＯＳＣＣ组织及１０例正常口腔粘膜进行ＰＣＮＡ检测。结果 正常口腔粘膜ＰＣＮＡ为阴性或仅在基底层见少量阳性细胞;鳞癌中ＰＣＮＡ表达显著增高,且阳性表达率随鳞癌分化程度的降低而递增（Ｐ＜０．０１）;淋巴结转移组鳞癌中ＰＣＮＡ较未转移组显著增强（Ｐ＜０．０１）;ＰＣＮＡ高表达者术后生存期有短于低表达者倾向。结论 ＰＣＮＡ标记可作为评估和判断ＯＳＣＣ恶性度和生物学行为的参考指标,但与ＯＳＣＣ预后的关系还有待进一步研究。     

细菌脂多糖对NIH3T3细胞增生、胞内游离钙及cAMP浓度的影响

目的 :探讨细菌脂多糖 (lipopolysaccharide,L PS)对 NIH 3T3细胞增生、胞内游离钙及 c AMP浓度的影响。　方法 :以中性红比色法检测细胞生长 ,酚试剂法检测细胞蛋白质合成 ,并动态检测 L PS对胞内游离钙和 c AMP浓度的影响。　结果 :1微量 L PS可促进细胞生长及蛋白质合成 ;2 L PS作用后 3～ 5 min可使胞内游离钙浓度升高 ,作用 1 m in后使 c AMP浓度升高 ,并保持较高水平。　结论 :胞内游离钙 ([Ca2 ]i)及 c AMP是 L PS对 NIH3T3细胞作用过程中重要的信使分子     

抗衰片质量标准的研究

 目的：抗衰片系由红参、白术和甘草等中药组成，为控制产品质量而进行质量标准的研究。方法：采用薄层色谱法对白术和甘草分别进行鉴别，并用薄层色谱扫描法对所含红参中的人参皂苷R_g1进行含量测定。结果：实验结果表明方法简便，专属性与重现性良好。结论：本方法可作为抗衰片的质量控制检测方法。     

水蛭和丹参对血管成形术后平滑肌细胞增殖影响的实验研究

目的：探讨腔内血管成形术（ＴＡ）后再狭窄的预防方法。方法：将６０支髂动脉（３０只家兔）随机分为３组（每组２０支髂动脉）：水蛭组、丹参组和对照组，造成实验性动脉粥样硬化狭窄并进行ＴＡ后，水蛭组每天饲喂２ｇ水蛭粉和普通饲料，丹参组每天饲喂２ｇ丹参粉和普通饲料，对照组每天只饲喂普通饲料，３０天后，进行血管造影和病理形态学检查。结果：（１）水蛭组髂动脉内膜厚度（４０．１±９．８μｍ）显著小于丹参组（４８．     

氯硝安定与安定溶液直肠给药用于惊厥急救的对照研究

目的以安定为对照，探讨氯硝安定溶液直肠给药对惊厥急救的实用价值。方法在２８例儿童中对比观察直肠注入氯硝安定与安定溶液的吸收速度和对脑电活动的影响，并比较两药对大鼠实验性惊厥的疗效。结果氯硝安定与安定溶液均能从直肠迅速吸收，皆于用药５分钟后达有效血浓度，分别于３～８分钟及２～８分钟对脑电活动产生显著影响，明显抑制癫痫样波发放，使美解眠诱发的惊厥致死率从对照组的７０％降为０。结论氯硝安定与安定溶液直肠给药，均能作为小儿惊厥抢救的有效措施。