雌激素对大鼠心内神经节IL-6和NGF表达的影响

目的:观察白介素6(IL-6)和神经生长因子(NGF)在成年雌性大鼠、卵巢切除大鼠、卵巢切除后雌二醇替代大鼠心内神经节的表达及变化.方法:免疫组织化学方法.结果:各组大鼠心内神经节均存在IL-6阳性神经元和NGF阳性神经元,但卵巢切除组大鼠心内神经节IL-6阳性神经元明显增多,表达明显增强,而卵巢切除组大鼠心内神经节NGF阳性神经元的数量却明显减少,表达明显降低.结论:心房后壁心内神经节存在IL-6和NGF,并且受雌激素影响,提示雌二醇可能影响心内神经节IL-6和NGF的表达.     

雌激素对大鼠心内神经节免疫因子白细胞介素-6(IL-6)表达的影响(英文)

为了研究雌激素是否对大鼠心内神经节白细胞介素-6(IL-6)的表达有影响,本研究采用免疫组织化学方法观察了IL-6在成年雌性正常大鼠、卵巢切除大鼠、卵巢切除后雌二醇替代大鼠心内神经节的表达及变化。结果显示:各组大鼠心内神经节均存在IL-6阳性神经元,但卵巢切除组大鼠心内神经节IL-6阳性神经元明显增多,表达明显增强。以上结果提示,大鼠心内神经节内存在IL-6的表达,其表达受雌激素的影响。     

雄激素对大鼠心内神经节白细胞介素-6表达的影响

用免疫组化方法观察成年雄性大鼠、睾丸切除大鼠、睾丸切除后睾酮替代大鼠等的白细胞介素 -6(IL-6)在心内神经节的表达及变化。结果显示 :各组大鼠心内神经节均存在 IL-6阳性神经元 ,但睾丸切除组大鼠心内神经节 IL-6阳性神经元数量明显增多、表达明显增强。结论 :心房后壁心内神经节存在 IL -6,且受雄激素影响 ,提示睾酮可能影响心内神经节 IL -6的表达。     

雌激素对大鼠心内神经节神经生长因子表达的影响

目的:观察神经生长因子(NGF)在卵巢切除大鼠心房后壁心内神经节的表达及雌激素的调节作用.方法:实验动物分正常组、卵巢切除组、卵巢切除后雌二醇替代组,各组动物审温下饲养3周后,进行 NGF 免疫组织化学显色.结果:各组大鼠心内神经节均存在 NGF 阳性神经元,该类神经细胞胞体多数呈圆形或椭圆形,大、中、小型细胞均有发现.正常组和卵巢切除后雌二醇替代组 NGF 免疫阳性神经无约占全部神经节细胞总数的比例分别为 61%和64%,但卵巢切除组大鼠心内神经节 NGF 阳性神经元的数量明显减少,表达明显降低,NGF 免疫阳性细胞约占全部神经节细胞总数的比例为28%.结论:心内神经节细胞内含 NGF;雌激素可能影响心内神经节细胞的 NGF 表达.     

雄激素对大鼠心内神经节神经生长因子表达的影响

目的 观察神经生长因子(NGF)在成年雄性大鼠、雌性大鼠、雌性大鼠睾酮处理组、睾丸切除大鼠、睾丸切除后睾酮替代大鼠心房后壁心内神经节的表达及变化。方法 免疫组织化学染色。结果 各组大鼠心内神经节均存在NGF阳性神经元，但睾丸切除组大鼠心内神经节NGF阳性神经元的数量明显减少，表达明显降低。结论 心内神经节细胞内含NGF；雄激素可能影响心内神经节细胞的NGF表达。     

中老年雄性大鼠心内神经节雄激素受体及其mRNA的表达变化

用免疫组织化学和原位杂交的方法观察成年(3月龄)大鼠和中老年(15月龄)大鼠心内神经节雄激素受体(androgenreceptor,AR)蛋白及其mRNA的表达和变化。结果显示:成年及中老年大鼠心内神经节均存在AR阳性神经元和AR mRNA阳性神经元,但中老年大鼠心内神经节AR阳性神经元和AR mRNA阳性神经元数目明显减少,表达明显降低。这些结果为AR在心脏的存在提供了形态学依据,并且证实心内神经节部分神经元能够合成AR,提示心内神经节可能受雄激素影响。     

神经生长因子在大鼠心内神经节的表达

目的 观察成年和中老年大鼠心内神经节神经生长因子(NGF)阳性神经元的存在及其变化。方法 免疫组织化学法。结果 成年及巾老年大鼠心内神经节均存在NGF阳性神经元，但中老年大鼠心内神经节NGF阳性神经元明显减少，表达明显降低。结论 心房后壁心内神经节存在NGF阳性神经元，并随年龄增加表达减少，提示NGF表达的减少可能与心脏功能的退化相关。     

心肌缺血大鼠心内神经节神经生长因子表达的变化

目的观察神经生长因子在急性心肌缺血大鼠心内神经节表达及其变化,探讨神经生长因子与心肌缺血的关系。方法采用免疫组织化学方法动态观察了正常大鼠以及大鼠冠状动脉结扎后1、6、12、24h心内神经节神经生长因子的表达及变化。结果各组大鼠的心内神经节均存在神经生长因子阳性神经元,并且神经生长因子阳性神经元的数目在冠状动脉结扎后1、6、12、24h后增多,表达也增强。结论心肌缺血大鼠心内神经节神经生长因子表达持续显著升高,提示神经生长因子可能参与心肌缺血的病变过程。     

白介素-6在大鼠心内神经节的表达

目的　观察大鼠心内神经节白介素 6(IL 6)阳性神经元的存在。方法　取 10只Winter大鼠心房后壁恒冷箱切片 ,用免疫组织化学方法观察白介素 6阳性神经元。结果　雌雄大鼠心房后壁心内神经节存在IL 6免疫阳性神经元 ,散在分布于心内神经节 ,细胞多为圆形或卵圆形 ,以小及中型为主。结论　IL 6在心内神经节的存在为神经免疫网络在心脏的存在提供了形态学依据     

雌激素对卵巢摘除大鼠心内神经节细胞Bcl-2和Bax表达的影响

本实验建立了去卵巢和雌激素替代疗法动物模型,用免疫组织化学SABC法结合图象分析方法,观察大鼠心内神经节细胞中Bcl-2和Bax的变化,探讨雌激素对卵巢摘除大鼠心内神经节细胞中Bcl-2和Bax表达的影响。去卵巢(OVX)大鼠心内神经节细胞中Bcl-2的表达较正常对照组明显减弱(P<0.05),雌激素替代治疗组大鼠心内神经节中Bcl-2的表达与正常对照组相比无显著性差异(P>0.05),而较卵巢摘除组显著增高(P<0.05);卵巢摘除后同时给予特异性雌激素受体阻断剂(TAM)和17β-雌二醇(OVX+TAM+ERT)组大鼠心内神经节中Bcl-2的表达较正常对照组显著减弱(P<0.05),但与OVX组无显著性差异(P>.05)。各组中Bax的表达无显著性差异(P>0.05)。实验结果提示雌激素能上调大鼠心内神经节细胞中Bcl-2的表达,但对Bax的表达无影响。     

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