氯丁二烯对小鼠机体免疫监视功能的影响

本文通过S_(180)细胞攻击试验以及脾脏K细胞和NK细胞活力的测定,观察了氯丁二烯染毒小鼠机体免疫监视功能的改变。结果表明,吸入氯丁二烯(90、250mg/m~(?))可明显增强小鼠对S_(180)细胞攻击的敏感性;以氯丁二烯给小鼠皮下注射染毒14天,虽未见脾脏K细胞ADCC效应的显著性降低,但细胞毒指数有随染毒剂量增加而下降的趋势;以90,250,400mg/m~3的氯丁二烯给小鼠吸入染毒14天,可导致脾脏NK细胞活力的明显降低,并认为这可能是氯丁二烯促进S_(180)细胞生长及其致癌作用的机理之一。     

吸入氯丁二烯诱发微核的探讨

采用615近交系小鼠吸入纯氯丁二烯,发现所用的最低浓度1.48mg/m~3即可导致多染红细胞微核计数显著高于对照组,且计数随浓度升高而增高,有明确的剂量反应关系。     

苯对雄性小鼠生殖细胞损伤的研究

本研究以浓度为30mg/m~8,300mg/m~8、3000mg/m~8和30000mg/m~8的苯给小鼠静式吸入染毒,作精子畸形、初级精母细胞染色体畸变、精原细胞SCE三项检查。三个试验的结果一致,表明苯有性腺毒性作用,可诱发雄性小鼠生殖细胞突变     

甲醛对小鼠机体毒性及其B淋巴细胞瘤-2基因表达的影响

目的探讨甲醛对小鼠机体的毒性及其对B淋巴细胞瘤-2基因表达的影响。方法将40只昆明种小鼠随机分为4组,10只/组。正常对照组小鼠不做任何处理,甲醛低剂量组(5 mg/m~3)、甲醛中剂量组(10 mg/m~3)、甲醛高剂量组(20 mg/m~3)小鼠分别放入染毒柜中吸入不同浓度的甲醛,连续9周,建立甲醛中毒的小鼠模型。结果甲醛可导致肝细胞核固缩及嗜酸样变,且呈现浓度依赖性,但对脑、肺、肾组织未见明显的影响。甲醛高剂量组与对照组比较,肝组织B淋巴细胞瘤-2表达升高(P<0.05)。结论甲醛可导致肝组织明显的病变,但对脑、肺、肾组织无明显的影响,机体可能通过上调肝脏的抗凋亡基因B淋巴细胞瘤-2而拮抗甲醛的毒性,进而保护肝脏。     

BALB/c小鼠可移植性乳腺癌(MA-901)动物模型的建立及其组织病理学研究

该模型用本所发现的BALB/c小鼠自发性乳腺癌作瘤源,同源小鼠作宿主,连续皮下移植传代,目前已达21代。从移植第一代起,即出现自发肺、肝转移,其转移比数为3/3。移植第9代时,曾作连续动态病理切片观察,移植后第11天即可见肺转移,肝转移多发生在20天左右,90天以后肺、肝转移率均高达100%,这在可移植性小鼠肿瘤模型中罕见。晚期亦可见脾、肾转移。该肿瘤以血道转移为主,亦可见淋巴转移。从移植肿瘤后第11天开始,宿主脾脏进行性肿大,形成巨脾症亦是本模型的重要特征之一。     

一株伴有自发肺、肝转移的BALB/c小鼠可移植性乳腺癌(MA-901)动物模型(简报)

本模型用本所发现的BALB/c小鼠自发性乳腺癌作瘤源,同源小鼠作宿主,连续皮下移植传代,目前已达21代.从移植第1代起,即出现自发肺、肝转移,其转移比数为3/3.移植第9代的连续动态病理切片观察表明,移植后11d即可见肺转移,而肝转移多发生在20d左右,30d以后肺、肝转移率均理高达100％.该肿瘤以血道转移为主;亦可见淋巴转移,92例中3例伴有淋巴转移.此外,移植肿瘤后第11天开始,宿主脾脏出现进行性肿大,巨脾症是本模型的重要特征之一.     

农药百菌清亚慢性吸入毒性研究

百菌清13周亚慢性吸入毒性实验表明,高浓度组(5.31mg/m~8)动物呈轻度粘膜刺激,血清谷丙转氨酶明显下降,嗜伊红细胞、血清总蛋白均明显升高,肝、肾、肺出现出血、炎性坏死病灶。低浓度组(1.16mg/m~3)除部分动物嗜伊红细胞增多外,未见其他异常。结果提示百菌清亚慢性吸入阈浓度为1.16mg/m~3。     

索拉非尼联合维生素K2对人肝癌细胞裸鼠转移瘤模型的协同治疗效应

目的利用小鼠人肝癌细胞转移瘤模型,探讨索拉非尼联合维生素K2的协同治疗效应。方法构建小鼠人肝癌细胞转移瘤模型,分别用1.25mg/kg的索拉非尼和2mg/kg的维生素K2单独或联合给药,观察用药后小鼠肝内、肺内转移瘤情况及生存时间的变化。结果索拉非尼和维生素K2联合作用较空白对照及单独作用能够显著抑制小鼠肝、肺内转移灶的数量及体积,维持给药可显著改善小鼠生存状态并延长生存时间。结论索拉非尼和维生素K2对人肝细胞癌有良好的协同治疗效应,可抑制肿瘤肝、肺转移并延长生存期。     

动式吸入甲醛对雄性小鼠生殖系统的影响

目的:探讨吸入不同浓度的气态甲醛对雄性小鼠生殖系统的影响。方法:将30只性成熟期健康雄性小鼠随机分为对照组、甲醛染毒1~4组,每组6只。对照组小鼠吸入空气,其他4组小鼠吸入的空气中甲醛的浓度分别为(0.18±0.06)mg/m~3、(0.55±0.13)mg/m~3、(1.08±0.27)mg/m~3、(4.14±1.68)mg/m~3,每天染毒8 h,共30 d。染毒结束后检测小鼠血清性激素水平、计算睾丸脏器系数、进行精子计数和精子畸形率检测。结果:各剂量甲醛染毒组小鼠与对照组相比,在血清性激素水平、睾丸脏器系数以及精子数量上无明显差异,但在精子形态上甲醛染毒3组、4组小鼠精子畸形率明显高于对照组(P<0.05,P<0.01)。相关性检验显示,甲醛染毒剂量与精子畸形率呈显著正相关(r_s=0.784,P<0.05)。结论:亚急性吸入1 mg/m~3或以上浓度的甲醛可能造成雄性小鼠生殖系统损伤。     

煤焦沥青烟气吸入诱发小鼠肺癌的实验研究

模拟工人在工作现场接触煤焦沥青的情况,在1m~3的染毒柜中加热煤焦沥青,产生烟气,浓度为99.81mg/m~3,苯并[a]芘浓度为105.1μg/m~2。小鼠每天吸入2h,每周6d,连续吸入6个月。于实验开始的第3、6个月时处死部分动物,第12个月处死剩余动物。不同时期小鼠肺癌发生率分别有:3个月0/6,6个月4/6;9个月前后自然死亡小鼠6/8;第12个月28/28。本实验建立了煤焦沥青烟气吸入诱发的小鼠肺癌模型。     

APPLICATION OF LORNOXICAM TO PATIENT-CONTROLLED ANALGESIA IN PATIENTS UNDERGOING ABDOMINAL SURGERIES

FOR anesthesiologis s ,treatingpostoperativepainhas alwaysbeen a problem.Althoughopioidshave been provedtobe effective,theirsideeffectscouldnotbeignored.With thedevelopmentofscienceand pharmacology,many drugs with aspectsof satisfactoryanalgesicefficacyand couldbe welltoleratedby patientshave been developed.And lornoxicamisone of them, which isa non-steroidalanti-inflammatorydrug (NSAID ), with analgesic, anti-infl-ammatory,andantipyreticproperties.Itseliminationhalf-time(3 to 5 hours) isle…     

Dr.Zhang Ren''''s Experience in the Acupuncture Treatment of Different Diseases with the Same Therapeutic Principle

Dr.Zhang Ren,the chief physician,is the chairman of Shanghai Acupuncture and Moxibustion Association.Having been engaged in medicine for about 40 years,he is experienced in treating various intractable diseases.In his long years of clinical practice,he advocates taking the TCM differentiation as the basis to seek for the acupuncture method for treatment of modern intractable diseases.The author of this essay had the fortune to follow Dr.Zhang in study.The following is a summary of Dr.Zhang's experience in the acupuncture treatment for different intractable diseases with the same therapeutic principle.     

Luo Lingjie''''s Experience in Treating Chronic Nephropathy

In treating chronic nephropathy,Luo Lingjie,a chief physician,pays attention to regulating the balance between yin and yang,treating infection if present,and removing pathogenic factors.He prescribes gentle drugs and uses carefully strongly warming-tonifying ones,emphasizes the importance of persuading the patient to persist in treatment with medication and nurse one's health for recuperation,and is good at combined use of TCM and western medicine therapy and brings the merits of various therapies into full play,with obvious theraoeutic effects.     

Acupuncture Combined with Spinal Tui Na for Treatment of Primary Dysmenorrhea in 30 Cases

Objective: To observe the therapeutic effects in acupunture treatment of primary dysmenorrhea combined with spinal Tui Na, and study its mechanism. Methods: Thirty cases of the treatment group were treated by acupuncture combined with spinal Tui Na, and thirty cases in the control group were treated by routine acupuncture. Results: The total effective rate was 93.3% in the treatment group, and 73.3% in the control group, with a significant difference between the two groups (P<0.05). Conclusions: Acupuncture combined with spinal Tui Na has good prospects for treatment of primary dysmenorrhea.     

猪肺磷脂注射液联合经鼻持续气道正压通气对呼吸衰竭早产儿的临床疗效及肌酸激酶同工酶活性的影响

目的 探讨猪肺磷脂注射液联合经鼻持续气道正压通气(NCPAP)对呼吸衰竭早产儿的临床疗效及肌酸激酶同工酶活性(CK-MB)的影响.方法 选取呼吸衰竭早产儿80例,分为观察组和对照组各40例.对照组采用NCPAP给氧治疗,观察组给予NCPAP给氧联合猪肺磷脂气管内给药.观察两组患儿治疗前及治疗12h、24 h后PaO2、PaCO2、血氧饱和度(SaO2)、pH的变化情况,检测治疗前及治疗5d后血清CK-MB水平;评估两组患儿的临床治疗效果.结果 两组患儿PaO2、PaCO2、SaO2、pH比较,差异均有统计学意义(P＜0.05),其中观察组治疗后的PaO2、SaO2、pH均高于对照组,PaCO2则低于对照组.两组的PaO2、SaO2、pH均随观察时间延长而升高(P＜0.05),PaCO2均随观察时间的延长而降低(P＜0.05).观察组治疗有效率为87.5％,显著高于对照组的70.0％ (P ＜0.05).治疗5d后两组患儿血清CK-MB水平均较前降低(P＜0.05),且观察组明显低于对照组(P＜0.05).结论 猪肺磷脂注射液气管内给药联合NCPAP可以显著降低呼吸衰竭早产儿CK-MB的含量,提高治疗有效率,起到很好的呼吸循环支持作用.     

Survey and practice of reporting quality of randomized controlled clinical trials on traditional Chinese medicine

Evidence obtained from randomized controlled trials （RCTs） has been generally accepted as the gold standard in the evaluation of clinical effectiveness. Readers need to understand the trial design, implementation, results, analysis and interpretation, so as to fully Jnderstand the results of RCTs. Thus, the investigators of RCTs have to report these items in a complete, accurate and clear manner. Since 1998, we have conducted several evaluations on the reporting quality of RCTs published in Chinese journals on traditional Chinese medicine （TCM） and results have shown that there is an urgent need for higher quality RCTs on TCM.     

TCM Treatment of Ankylosing Spondylitis by Tonifying the Kidney and Strengthening the Governor Vessel

Ankylosing spondylitis is a chronic and progressive disorder with inflammation mainly involving the central axis joints. It mainly affects the cervical spine and the lumbosacral area, with the pathogenesis closely related to the kidney and the Governor Vessel (GV). TCM holds that the syndrome is deficiency in origin and excess in superficiality, which is due to insufficiency of the kidney, deficiency of GV, and blocking of the channels with the invasion of exogenous evil, leading to poor circulation of qi and blood and malnutrition of the bones, muscles and joints. The TCM method of tonifying the kidney and strengthening GV to regulate circulation of qi and blood and check the arthralgia pain should be adopted, with the Kidney-Tonifying and GV Strengthening Decoction (益肾强督汤) prescribed.     

IMPROVING P-gp EXPRESSION IN HUMAN MONONUCLEAR CELLS IN VITRO TRANSFECTED BY MULTIDRUG RESISTANCE-1 mRNA

CHEMOTHERAPY playsa greatrolein the treat- ment of malignanttumors,especiallyingynecolo- gicalones.But inanticancerchemotherapy,leuko-cytopeniaisfrequentlytheprimarydose-limitingsideeffect factor.Moreover,cancersarefrequentlychemoresistantbe-causeof overexpressionof P-glycoprotein(P-gp), which isencodedby multidrugresistancegene (MDR1 ) and detectableinup to50% ofhuman cancersand renderscellsresistancetoanticancerdrugs.The safetyand potentialtherapeuticbenefitof mdr1 gene transferredto h…