脐血瘦素水平与胎儿出生体重的关系

目的探讨脐血瘦素水平与胎儿出生体重的关系.方法应用特异放射免疫分析法测定91例正常分娩或剖宫产的新生儿脐血清瘦素水平.根据新生儿出生体重与胎龄的关系将研究对象分成对照组44例,大于胎龄儿(LGA)组28例和小于胎龄儿(SGA)组19例.结果91例新生儿脐血清瘦素范围为1.8-40.5ng/ml,平均为9.9±7.4.男性为1.8-35.5ng/ml,平均为5.3±5.6.女性为2-42.5ng/ml,平均为15.0±8.0.两性新生儿出生体重、体重指数比较无显著差异.脐血清瘦素男性显著低于女性(P=0.011).LGA组、SGA组脐血清瘦素水平、出生体重、体重指数分别与对照组比较差异均有显著性(P＜0.01).新生儿脐血清瘦素水平与出生体重、体重指数均呈正相关.相关系数分别为r=0.59、r=0.37.结论瘦素是胎儿生长调节系统的重要因子,与胎儿出生大小有密切相关性.     

妊娠期被动吸烟对新生儿脐血瘦素水平的影响

目的探讨妊娠期母亲被动吸烟对新生儿脐血瘦素水平的影响.方法根据妊娠期母亲是否有被动吸烟史,将新生儿分成2组,被动吸烟组及对照组各45例.应用放射免疫分析法,测定新生儿脐血瘦素(leptin)水平.结果妊娠期母亲被动吸烟新生儿脐血瘦素水平平均为5.41±2.72ng/ml,对照组为6.45±2.49ng/ml.两组比较差异有显著性(P=0.011).被动吸烟组每日吸烟的数目与脐血瘦素水平成负相关(r=-0.429P＜0.001)结论妊娠期母亲被吸烟可引起新生儿脐血瘦素水平下降,下降的程度与每日被动吸烟的数量有关.     

妊娠期糖代谢异常性巨大儿与成纤维细胞生长因子的关系

目的 探讨孕妇血清成纤维细胞生长因子2(FGF-2)水平测定对糖代谢异常性巨大儿有无预测价值.方法 采用酶联免疫方法检测孕34～37w母血清中FGF-2水平.结果 (1)糖代谢正常组孕妇血清FGF-2(3.35±2.2ng/ml),而异常组≥18.9±2.8ng/ml,两者差异显著.(2)糖代谢异常组巨大儿母血清FGF-2水平为(34.6±4.3ng/ml),正常组为(23.34±3.7ng/ml),两组比较差异性有显著性(P＜0.05).结论 糖代谢异常组孕妇血清FGF-2水平明显高于正常组,其水平与新生儿体重呈正相关,说明孕妇血清 FGF-2水平与糖代谢异常性巨大儿(GDM-MS)有相关性.     

妊娠期肝内胆汁淤积症的瘦素水平

目的探讨血清中瘦素与肝内胆汁淤积症(ICP)关系、发病原因.方法采用放射免疫法检测76例(观察组)ICP孕妇血清中瘦素水平与正常孕妇(对照组)血清瘦素水平;ICP孕妇的血清中瘦素水平与不同孕周、羊水污染程度的相关性.结果1.观察组76例ICP孕妇瘦素水平为(31±8.1)ng/ml,对照组正常孕妇血清瘦素水平(24.±6.3)ng/ml,两组比较有极显著性差异(P＜0.01).2.观察组按孕妇的孕周分为30.1～35w、＞35w两组,分别为48例与28例,其瘦素水平为(32.4±4)ng/ml、(32.5±7.6)ng/ml,两组比较无显著差异(P＞0.05).3.观察组共76例,ICP合并羊水Ⅲ度污染30例与无羊水Ⅲ度污染46例比较瘦素水平,分别为(35.4±6.1)ng/ml、(29.8±7.5)ng/ml,即瘦素水平ICP合并羊水Ⅲ度污染明显高于ICP无合并羊水Ⅲ度污染的孕妇,有显著差异(P＜0.05).ICP孕妇血清中瘦素水平与各不同孕周相关指数(0.22;P＞0.05)无相关性;而ICP孕妇血清中瘦素水平与羊水污染程度相关指数(0.67;P＜0.01)有明显的相关性.结论ICP与瘦素有着密切的关系,即瘦素与ICP疾病在免疫功能失常、雌激素发病学说有相关联系,以及在胎盘缺氧时反映出来的瘦素水平升高,有助于我们对ICP合并胎儿窘迫进行监察,可作为临床观察指标.     

妊高征患者瘦素水平测定及与胎儿发育的关系

目的研究妊高征患者及其新生儿脐血瘦素水平,以探讨瘦素在妊高征发病中的意义及其与胎儿宫内发育的关系.方法正常孕妇,轻、中、重度妊高征患者各10例,分别于入院后抽取肘前静脉血,分娩时抽取脐静脉血测定瘦素水平.结果正常妊娠组,轻、中、重度妊高征组母血瘦素分别为21.07±5.79ng/ml,19.84±6.19 ng/ml,25.31±6.34ng/ml,30.16±6.78ng/ml;脐血瘦素分别为4.20±2.04ng/ml,3.54±1.95ng/ml,6.32±1.60ng/ml,8.51±2.31 ng/ml;胎儿体重分别为3160±368.03g,3140±441.46g,2920±548.33g,2670±539.65g.正常妊娠组与轻度妊高征组母血及脐血瘦素水平比较均无显著性差异(P＞0.05);重度妊高征组较中度妊高征组母血及脐血瘦素水平均增高,差异有显著性(P＜0.01,P＜0.05);中度妊高征组较对照组(轻度妊高征组及正常妊娠组合并)母血及脐血瘦素水平也均增高,差异也有显著性(P＜0.05,P＜0.01).重度妊高征组母血瘦素与脐血瘦素水平呈显著性正相关(r=0.9,P＜0.01),其余各组均无此相关性.重度妊高征组新生儿体重低于正常妊娠组,差异有显著性(t=2.37,P＜0.05),其余各组间比较均无显著性差异.各组脐血瘦素水平均与新生儿体重呈正相关.结论妊高征患者母血、脐血瘦素均有随病情逐渐增高的趋势,瘦素参与妊高征的发病;重度妊高征时胎盘瘦素可能是脐血瘦素的来源之一并有促进胎儿宫内发育的作用.     

新生儿血清瘦素水平变化与胰岛素和生长激素关系的研究

目的　探讨新生儿血清瘦素来源及其与胰岛素和生长激素的关系。方法　采用放射免疫法检测 80例新生儿静脉血和脐血瘦素水平 ,根据不同胎龄新生儿出生体重值分为大于胎龄儿 (LGA)组 2 8例 ,适于胎龄儿 (AGA)组 36例 ,小于胎龄儿 (SGA)组 16例 ;采用Rohrer′s指数 =出生体重 (g)× 10 0 /身长 (cm) 3 估测新生儿营养状态。结果　早产儿血清瘦素水平明显低于足月儿 (0 6 6± 1 0 3ng/mlvs 3 5 9± 2 16ng/ml,P <0 0 1) ;AGA儿血清瘦素水平 (3 0 6± 0 96ng/m1)明显低于LGA儿(4 0 3± 2 2 2ng/m1) ,而高于SGA儿 (1 13± 1 98ng/m1) ;足月新生儿血清瘦素水平与Rohrer′s指数、新生儿体重、胎龄 ,血清胰岛素、生长激素水平呈显著正相关。结论　新生儿体内瘦素主要来源于自身脂肪组织 ,它反映新生儿的生长营养状态 ,推测瘦素可能通过胰岛素、生长激素共同调节新生儿的生长发育 ,在胎儿和新生儿生长发育中起重要作用。     

产妇与新生儿瘦素水平和新生儿体重的观察及其临床意义

探讨胎盘、羊水、新生儿脐血和产妇血清中的瘦素水平与胎儿体重和妊高征的关系.采用放射免疫分析法,分别检测59名产妇胎盘、羊水、新生儿脐血和产妇血清中的瘦素水平,并对其结果进行t检验.结果是:(1)正常产妇胎盘、羊水、新生儿脐血和产妇血清中的瘦素水平分别为27.4±9.2μg/g、9.2±4.8μg/L、13.6±9.8μg/L、19.5±8.9μg/L;(2)妊高征产妇胎盘、羊水、新生儿脐血和产妇血清中的瘦素水平分别为36.5±8.5μg/g、15.3±3.9μg/L、19.8±5.6μg/L、29.3±11.7μg/L.妊高征组与正常产妇组的胎盘、羊水、新生儿脐血和产妇血清中的瘦素水平有显著性差异(P＜0.01),检测孕妇血清和羊水中的瘦素水平,对于评估胎儿的发育和体重、妊高征的治疗和预后具有重要意义.     

新生儿血清瘦素水平变化与IGF-Ⅰ、生长激素等相关因素的分析

目的探讨新生儿血清瘦素来源及其与胰岛素样生长因子-Ⅰ(IGF-I)和生长激素的关系.方法采用放射免疫法检测80例新生儿静脉血和脐血瘦素水平,根据不同胎龄新生儿出生体重值分为大于胎龄儿组28例,适于胎龄儿组36例,小于胎龄儿组16例;采用Rohrer's指数=出生体重(g)×10/身长(cm)3估测新生儿营养状态.结果早产儿血清瘦素水平明显低于足月儿(0.66±1.03ng/ml vs 3.59±2.16ng/ml,P＜0.01=;适于胎龄儿血清瘦素水平(3.06±0.96ng/ml明显低于大于胎龄儿(4.03±2.22ng/ml),而高于小于胎龄儿(1.13±1.98ng/ml);足月新生儿血清瘦素水平与Rohrer's指数、新生儿体重、胎龄、血清IGF-Ⅰ、生长激素水平呈显著正相关.结论新生儿体内瘦素主要来源于自身脂肪组织,它反映新生儿的生长营养状态,推测瘦素可能通过IGF-Ⅰ、生长激素共同调节新生儿的生长发育,在胎儿和新生儿生长发育中起重要作用.     

瘦素在黄体功能不足患者子宫内膜中的表达

目的测定黄体功能不足患者黄体中期血清瘦素值和子宫内膜瘦素表达水平,探讨黄体功能不足和体内瘦素水平异常的关系。方法48例黄体功能不足患者,年龄(35.0±5.3)岁,体重指数(BMI)(23.2±3.2)kg/m2。分别做黄体中期的血清瘦素放射免疫测定和子宫内膜瘦素免疫组化染色。51例正常对照组,年龄(37.0±4.1)岁,体重指数(BMI)(22.8±2.6)kg/m2。结果黄体功能不足患者组血清瘦素值(8.49±3.72)ng/ml;正常对照组为(7.43±4.02)ng/ml。两组数据经t检验,无统计学意义(P=0.18>0.05)。H评分法显示:正常对照组子宫内膜腺体瘦素半定量为2.11±0.74,内膜间质为1.90±0.85;黄体功能不足患者组内膜腺体为1.49±1.06,内膜间质为1.30±0.89。对两组结果进行t检验,具有统计学意义(P=0.001<0.05)。结论黄体功能不足的患者子宫内膜上的瘦素表达异常,在黄体中期存在瘦素不表达或弱表达。     

Graves''病患者GH与IGF-1水平观察

目的:探讨Graves病(GD)患者对血清生长激素(GH)与胰岛素样生长因子-1(IGF-1)水平的影响.方法:采用放射免疫分析(RIA)检测42例GD患者、20例经治疗甲状腺功能恢复至正常水平GD患者与30例健康人血清GH与IGF-1水平.结果:GD组,血清IGF-1水平(170.8±44.4)ng/ml、GH水平(2.89±1.18)ng/ml明显升高,与对照组(IGF-1为90.5±30.5ng/ml、GH为1.58±1.20ng/m1)比较有显著性差异(p＜0.01、p＜0.05),且IGF-1与FT4正相关(r=0.58,p＜0.01).GD治疗缓解组,IGF-1水平(105.1±37.0)ng/ml、GH水平(1.71±1.36)ng/ml明显低于初诊未治疗组,差异有显著性(P＜0.01、P＜0.05).结论:GD患者血清IGF-1和GH水平明显升高,并且可能与甲状腺激素存在一定的关系.     

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