麻风病人血液超氧化物歧化酶的研究

用亚硝酸法测定各型麻风病（ｎ＝７３）及健康人（ｎ＝１５）血浆中ＳＯＤ总量、Ｍｎ－ＳＯＤ和Ｃｕ、Ｚｎ－ＳＯＤ含量；发现各型麻风病人血浆中ＳＯＤ总量和Ｍｎ－ＳＯＤ含量均比正常人高（Ｐ＜０．０１），而Ｃｕ、Ｚｎ－ＳＯＤ含量无显著性差异（Ｐ＞０．５）。提示麻风病人血浆中ＳＯＤ总量升高，受Ｍｎ－ＳＯＤ的影响；后者存在于细菌体内，从而证明麻风病人体内的ＳＯＤ主要来源于麻风分枝杆菌。     

钙通道阻滞剂──IHC-72对兔MODS血管内皮细胞保护的研究

目的在于探讨ＩＨＣ－７２（３,６－２甲氨基一二苯并碘杂六环依地酸盐）对血管内皮细胞的保护作用。方法将大耳白兔２１只随机分为对照（ｎ＝５）、实验（ｎ＝９）及ＩＨＣ－７２（ｎ＝７）３组。利用饲菌复合失血性休克及再灌注损伤的方法和标准复制家兔ＭＯＤＳ模型,达标者称为ＭＯＤＳ组。ＩＨＣ－７２组于实验前０．５ｈ肌注 ＩＨＣ－７２（０．２５ｍｌ／ｋｇ）;对照组不饲菌、不放血、不注药。实验过程中观察血管内皮细胞形态改变及相关的功能指标。结果 ＭＯＤＳ对血管内皮细胞明显损伤,质膜下空泡增多,核染色质边集,线粒体和内质网等减少,严重者坏死、脱落。而ＩＨＣ－７２组则内皮细胞损伤轻微,其７２ｈ血浆ⅧＲ∶Ａｇ浓度（１１４．７±５．９％）与实验前（９１．４±０．８％）无显著差异（Ｐ＜０．０５）,但与ＭＯＤＳ组（１６７,０±６,１％）有明显差异（Ｐ＜）;ｉｈＣ－７２组７２ｈ血浆 ６－Ｋ－ＰＧＦα浓度（ ６２１０± １８． ４ｐｇ／ｍｌ）与实验前比（６４３． ７±２０． ７）无显著差异（Ｐ＞０．０５）,而与 ＭＯＤＳ组（４６７, １± １４． ２）比有显著差异（Ｐ＜０．０５）。结论以上 ＩＨＣ－７２对ＭＯＤＳ血管内皮细胞有一定保护作用。本研究还说明钙     

肝门阻断对远隔脏器的影响

肝门阻断对远隔脏器的影响为研究肝门阻断对远隔脏器的影响，将３０只实验家兔随机分成４组：假手术对照组（Ｓ组，ｎ＝１０）；全肝门阻断加再灌组（Ｄ组，ｎ＝１０）；全肝门阻断无再灌组（Ｎ组，ｎ＝１０）；部分肝门阻断加再灌组（Ｌ组，ｎ＝５）。分别检测血及组织中...     

缺血－再灌注损伤与高空减压病

５例延迟性Ⅱ型高空减压病（ＤＣＳ）血铜锌超氧化物歧化酶（Ｃｕ－ＺｎＳＯＤ）测定结果，平均３１０．２ｎｇ／ｍｌ，较低者分别为２０５、２３１和２５０ｎｇ／ｍｌ。对照组平均３８５．６ｎｇ／ｍｌ，较低者分别为３３０、３４０和３６６ｎｇ／ｍｌ。经Ｘ２检验，患者组明显低于对照组（Ｔ＝６．１６５，Ｐ＜０．０１），治疗后１个月患者组血ＳＯＤ恢复正常。表明ＤＣＳ与缺血－再灌注损伤有一定联系．     

家兔肝缺血再灌注损伤时氧自由基的动态变化及川芎嗪的保护作用

目的：观察家兔肝缺血再灌注损伤时氧自由基的动态变化,探讨川芎嗪的保护作用。方法：健康家兔２０只,随机分为对照组（ｎ＝１０）,川芎嗪保护组（ｎ＝１０）,制备肝缺血再灌注损伤模型。连续观察缺血前、缺血２５ｍｉｎ、再灌注２５ｍｉｎ、再灌注６０ｍｉｎ和再灌注１２０ｍｉｎ时血浆中丙二醛（ＭＤＡ）含量和黄嘌呤氧化酶（ＸＯ）、超氧化物歧化酶（ＳＯＤ）、谷丙转氨酶（ＡＬＴ）活性的动态变化及川芎嗪对上述指标的影响。结果：肝缺血再灌注损伤时,对照组的ＭＤＡ、ＸＯ和ＡＬＴ明显升高,ＳＯＤ显著降低并随灌注时间的延长呈阶…     

血管内皮在猪离体肺内动脉缺氧性收缩反应中的作用及机制

浴槽内缺氧（ｐＯ２＝４０ｍｍＨｇ，５．３３ｋＰａ）可使内皮（ＥＣ）完整的猪离体肺内动脉（ＰＡ）收缩（张力升高０．８６±０．０９，ｎ＝１２）。去除ＥＣ后ＰＡ的缺氧收缩反应减弱（张力升高仅０．１１±０．０３ｇ，ｎ＝１２，Ｐ＜０．０１）。内皮衍的舒张因子（ＥＤＲＦｓ）的抑制剂美兰、棉子酚（均１０＾－５ｍｏｌ／Ｌ）及钙拮抗异搏停（１０＾－５ｍｏｌ／Ｌ）可显著抑制ＥＣ完整ＰＡ的缺氧性收缩反应，而消炎痛、乙胺     

小管间质肌成纤维细胞激活对大鼠残余肾硬化的影响

目的：本文研究５／６肾大部切除大鼠肾小管间质肌成纤维细胞（ｍｙｏｆｉｂｒｏｂｌａｓｔ，ＭＦＢ）标记性抗原，α－平滑肌肌动蛋白（α－ｓｍｏｏｔｈ ｍｕｓｃｌｅ ａｃｔｉｎ，α－ＳＭＡ）免疫组化表达及其意义。方法：成年雄性Ｗｉｓｔａｒ大鼠（６－８周龄，２００－２５０ｇ）随机分成两组：１．假手术（ｓｈａｍ，ｎ＝５）ｍ，；２，ＳＸｎ 组（ｎ＝５）。     

免疫印迹技术检测抗中性粒细胞胞浆抗体的应用研究

用免疫印迹技术（ＩＢＴ）检测了１０１例不同原因的血管炎、ＳＬＥ和类风湿性关节炎（ＲＡ）患者血清中的抗中性粒细胞胞浆抗体（ＡＮＣＡ），ＡＮＣＡ与凝胶电泳时２９ＫＤａ处的中性粒细胞胞浆抗原形成一条明显的沉淀带。韦格纳氏／多血管炎组患者的阳性率为５４．５％（６／１１例），显著高于其他血管炎、ＳＬＥ和ＲＡ患者的１４．２％（３／２１例），４．２％（２／４８例）和０％（０／２１例）。３５份正常人血清全呈阴性。用ＡＮＣＡ阳性血清作用于中性粒细胞，在间接免疫荧光检测时均呈胞浆型（Ｃ－ＡＮ－ＣＡ）。此法特异、简便、易于推广应用，有助于血管炎的诊断。     

人脑颞叶组织中类固醇5a－还原酶同功酶活性分布研究

本文采用酶放射分析法对新鲜人脑颞叶组织中５ａ－还原酶同功酶的活性分布进行研究。结果显示：（１）在颞叶脑组织中，５ａ－还原酶１和５ａ－还原酶２主要分布在灰质，其酶活性（５ａ－还原酶１，３３．６±４．５ｐｍｏｌ·ｈ_（－１）／ｍｇ蛋白，ｎ＝１２；５ａ－还原酶２，１３．８±２．９ｐｍｏｌ·ｈ_（－１）／ｍｇ蛋白，ｎ＝１１）明显高于分布在白质中的酶活性（５ａ－还原酶１，１４．７±２．０ｐｍｏｌ·ｈ_（－１）／ｍｇ蛋白，ｎ＝１２，Ｐ＜０．００１；５ａ－还原酶２，５．２±０．９ｐｍｏｌ·ｈ_（－１）／ｍｇ蛋白，ｎ＝１１，Ｐ＜０，０１）；（２）在灰质中，５ａ－还原酶活性主要来自于５ａ－还原酶１，其酶活性（３４．９±２．５ｐｍｏｌ·ｈ_（－１）／ｍｇ蛋白，ｎ＝３２）明显高于５ａ－还原酶２（１５．０±２．３ｐｍｏｌ·ｒ_（－１）／ｍｇ蛋白，ｎ＝１８，（Ｐ＜０．００１）；（３）５ａ－还原酶１和５ａ－还原酶２的活性在男女性之间差异不显著，且与年龄无相关关系。     

电刺激中缝背核对家兔脑皮质微血流的影响

目的应用氢清除法测定局部脑组织血流（ｒＣＢＦ）及观测软脑膜血管微循环,探讨电刺激兔中缝背核（ＤＲＮ）对脑皮质微血流的影响及其机理。方法选用健康家兔３３只、随机分为四组。单纯刺激组（ｎ＝１５）．单纯刺激ＤＲＮ后,连续观察３０ｍｉｎ内局部脑组织血流（ｒＣＢＦ,ｎ＝１０）或软脑膜血管微循环的变化（ｎ＝５）。尼莫地平组（ｎ＝６）,在电刺激ＤＲＮ之前先静注尼莫地平（５μｇ／ｋｇ）。切断颈交感神经组（ｎ＝６）。切断两侧预交感神经后、再刺激 ＤＲＮ,破坏兰斑核组（ＬＣ, ｎ＝６）,破坏同侧兰斑核后再刺激ＤＲＮ,分别观察ｒＣＢＦ的变化。结果电刺激ＤＲＮ后脑皮质ｒＣＢＦ减少４４．２％（Ｐ＜０．０１）,软脑膜微动脉管径缩小,血流速度减慢,血流量减少,作用持续 １５ｍｉｎ。而尼莫地平可取消其作用。切断颈交感神经或破坏ＬＣ后再刺激ＤＲＮ,ｒＣＢＦ分别减少１５．８％和１６．６％（Ｐ＜０．０５）。ｒＣＢＦ降低幅度均小于正常动物。电刺激ＤＲＮ对半球脑血流动力学无显著影响。结论电刺激中缝背核可致兔脑皮质微动脉收缩,局部组织血流减少、其途径有二;一是中枢性５－ＨＴ能神经元兴奋引起的直接缩血管作用;二是通过激活中枢和外周去甲肾上腺素能神经系统引起     

Level of functioning of siblings and parents of probands of varying degrees of retardation

A further analysis of already published data supports the position that retardates of low ability level less frequently have retarded siblings, retarded parents, and parents low in occupational level than do retardates higher in ability level. The analysis supports the position that there are two types of retarded individuals, persons retarded as a result of gene or chromosomal anomalies, brain injury, etc., who more frequently occur in the lower-level retardate group, and persons whose retardation represents polygenic segregation, who more frequently occur in the higher-level group.     

局部注射辛伐他汀对骨质疏松大鼠股骨髁骨小梁的改建效应

背景：局部注射具有成骨作用的辛伐他汀,可显著增加骨质疏松大鼠股骨颈及股骨髁部的骨密度及力学强度,分析局部注射辛伐他汀对股骨髁骨小梁的影响。 目的：进一步研究骨质疏松大鼠股骨内局部注射辛伐他汀对股骨髁骨小梁的影响。为将辛伐他汀应用于临床骨质疏松局部治疗提供实验基础。 方法：18只雌性SD大鼠双侧卵巢切除后3个月,制备大鼠骨质疏松模型。实验大鼠随机数字表法均分为3组,分别在实验大鼠的右侧股骨髓腔内单次注射辛伐他汀溶液5 mg、10 mg,对照组单纯注射空白载体。分别在注射后1个月处死大鼠并取材。Micro-CT扫描并定量分析骨组织形态变化。 结果与结论：给药后1个月,Micro-CT扫描结果显示,辛伐他汀治疗组的骨微结构参数如骨皮质厚度、骨小梁密度及连接率明显优于对照组。说明疏松骨骼单次注射小剂量辛伐他汀可显著促进股骨髁部骨小梁改建,改善骨骼微结构,可为强化局部、防治骨质疏松骨折的新选择进一步提供实验基础。     

石斛属民族药用植物的分类及生药学研究

中药石斛早在《神农本草经》中就被列为上品,其应用历史悠久,具有养阴生津、补肾益气、润喉护嗓、活血明目、抗癌防老等功效。本文对国内外石斛属民族药用植物的分类及生药学研究进行了综述。     

膝关节骨性关节炎的关节镜治疗体会

目的我科自2001～2005年4月对59例67膝的骨性关节炎（0A），进行关节镜检查及镜下清理术。方法镜检：膝关节骨性关节炎伴不同程度滑膜炎，滑膜皱壁粘连纤维片，关节软骨不同程度破坏。镜下清除增生滑膜，松解粘连，去除剥脱软骨、修复关节面。结果随访2月～4年，平均1.5年，术后综合评估2月～1年，优良率94％；1～2年，优良率79.2％；2年以上优良率54.8％。结论关节镜对膝关节骨性关节炎诊断能提供了比较全面的资料，并对骨性关节炎早期有良好疗效，具有创伤小、恢复快、并发症少和重复治疗等优点。     

Anatomical study of distribution of valves of the cutaneous veins of adult''s limbs

Since the cutaneous veins of the four limbs have been used as autogenous grafts in the treatment of cardiovascular disorders, knowledge of distribution of the valves is increasingly required depending upon the use. In the gross anatomical study of distribution of valves of the trunci venae, there has been argument about locational relationships between the venous roots and the valves in the vicinity of the roots and the inter-valvular distance. However, there have been only few reports discussing detailed information about valves of the cutaneous veins of the four limbs. The authors observed patterns of distribution of the cutaneous venous valves of the four limbs of cadavers prepared for practice in anatomy. The following parts were excised from each cadaver: the cephalic, basilic, and the great saphenous veins, which originate from the acral venous network and flow into the proximal deep veins, and the venous roots communicating with these veins. An incision was made on each excised vein in the direction of the long axis under observation with a stereoscopic microscope, and the inter-valvular distance and the distance between the valve and the orifice of venous root in the vicinity of the valve were measured. The inter-valvular distance varied with type of the truncus venae, and it varied according to area even in the same truncus venae.     

Pathways of the realization of immunomodulating effects of neurotransmitters

Translated fromByulleten' Eksperimental'noi Biologii i Meditsiny, Vol. 115, N ^o 4, pp. 401–404, April, 1993     

Characterization of sterols of three digenetic trematodes of buffalo

Sterols of three digenetic trematodes were isolated and characterized by infrared and 1H nuclear magnetic resonance spectroscopies, and gas-liquid chromatography and gas chromatography-mass spectrometry. Sterols identified were cholesterol, cholestanol, 24-methylcholesterol, 24-methylcholestanol, 24-ethyl-22-dehydrocholesterol, 24-ethyl-22-dehydrocholestanol, 24-ethylcholesterol and 24-ethylcholestanol.     

Mechanisms of generation of slow components of bioelectric activity in diagnostics of functional state of the gastrointestinal tract

New electrophysiologic devices were used for the diagnostics of the state of excitable structures in the gastrointestinal tract and correction of their motor functions. Bioelectrical and biomechanical activities form the basis of functioning of internal organs. The mechanisms of generation of slow bioelectrical activity that are important for clinical and physiological studies are described. One of these mechanisms is a capacitance parametric transducer converting the energy of contractions into specific electric signals reflecting muscle functions. Another mechanism results from slow oscillations of resting potentials of interrelated excitable cells in large neuromuscular structures of internal organs. The elaborated procedure is efficient for preventing early postoperative paresis of the gastrointestinal tract. Translated fromByulleten' Eksperimental'noi Biologii i Meditsiny, Vol. 128, No. 10, pp. 448–452, October, 1999     

胃小弯侧血管弓的MDCT解剖

目的：研究正常胃小弯侧血管弓及其属支血管的多排螺旋CT表现。方法：回顾性分析51例正常成人的上腹部CT资料,观察胃小弯侧血管弓及其属支血管的显示情况、血管弓形态及其与胃壁的关系。结果：51例均显示胃小弯侧血管弓,血管弓贲门部属支、胃体部属支和幽门部属支分别显示46例、15例和10例;血管弓与胃壁紧邻41例。结论：MDCT检查可良好显示正常胃小弯侧血管弓及其属支血管。     

Assessment of the efficacy of treatment of hemangiomas

Assessment of the aftereffects of cryoexposure and ultrahigh-frequency cryoexposure on hemangioma tissue of various types, cavernous and squamous, showed a higher cryogenic effect in hemangiomatous tissue preexposed to ultrahigh-frequency waves. A quantitative criterion is proposed for assessing the efficacy of the studied methods of exposure. Translated fromByulleten' Eksperimental'noi Biologii i Meditsiny, Vol. 119, N ^o 6, pp. 669–672, June, 1995