丙种球蛋白联合地屈孕酮治疗复发性流产的效果及对患者免疫功能和血清炎症因子水平的影响

目的:探讨丙种球蛋白联合地屈孕酮治疗复发性流产的效果及对患者免疫功能和血清炎症因子水平的影响。方法:选择2016年1月-2017年12月我院收治的82例复发性流产患者为研究对象,将其随机分为两组。对照组采用单纯口服地屈孕酮,每次10 mg,每天2次;观察组在对照组基础上联合静脉滴注丙种球蛋白500 mg/(kg·d)。比较两组治疗前后的血清白介素-6(IL-6)、肿瘤坏死因子-α(TNF-α)以及白介素-10(IL-10)水平,CD4~+/CD8~+、CD8~+以及CD4~+及保胎成功率。结果:治疗后,观察组治愈14例,有效18例,无效9例,治疗有效率为78.05%(32/41),明显高于对照组[60.98%(25/41)](P0.05);两组治疗后的血清TNF-α、CD8~+水平较治疗前明显降低(P0.05),血清IL-6、IL-10、CD4~+/CD8~+以及CD4~+水平较治疗前明显升高(P0.05),且观察组血清TNF-α、CD8~+水平明显低于对照组(P0.05),血清IL-6、IL-10、CD4~+/CD8~+以及CD4~+水平明显高于对照组(P0.05)。观察组的保胎成功率为82.93%(34/41),明显高于对照组[31.71%(13/41)](P0.05)。结论:丙种球蛋白联合地屈孕酮可以有效增强复发性流产患者体内的免疫功能,减少调节炎症因子的表达,提高保胎成功率.     

地屈孕酮治疗早期先兆流产效果的影响因素及妊娠结局随访研究

摘要 目的：探讨地屈孕酮治疗早期先兆流产效果的影响因素，并随访继续妊娠患者的妊娠结局。方法：于2017年1月至2019年1月期间选取我院收治的300例早期先兆流产患者，均给予地屈孕酮首次剂量40 mg/次口服，之后改为30 mg/次，2次/d。按照治疗是否有效分为有效组和无效组，收集两组基本临床资料，采用多因素Logistic回归分析地屈孕酮治疗早期先兆流产效果的影响因素，并随访妊娠结局。结果：300例患者治疗有效245例(81.67%)，治疗无效55例(18.33%)；单因素分析显示：与无效组比较，有效组的年龄、孕次、流产次数、产次、抗子宫内膜抗体(EMAb)阳性率较小，血清β-人绒毛膜促性腺激素(β-HCG)、孕酮(P)、雌二醇(E₂)水平较高，差异有统计学意义(P＜0.05)，多因素Logistic回归分析显示：年龄（较大）、孕次（较多）、产次（较多）、流产次数（较多）、EMAb阳性是影响地屈孕酮治疗效果的危险因素(P＜0.05)，血清β-HCG（较高）、P（较高）、E₂（较高）是影响地屈孕酮治疗效果的保护因素(P＜0.05)。随访结果显示：继续妊娠的245例患者平均分娩孕周(39.43±1.06)周，产妇结局：出现产后出血6例，产后胎盘粘连17例；新生儿结局：Apgar评分为(9.43±0.20)分，出现早产2例，畸形1例，永存右脐静脉1例。结论：年龄、孕产次数、流产次数、EMAb阳性、血清β-HCG、P、E₂是地屈孕酮治疗早期先兆流产效果的影响因素，地屈孕酮治疗早期先兆流产是否会增加产妇及新生儿不良结局的发生风险仍需进一步研究。     

子宫动脉血流参数联合血清β-HCG、P、E2预测复发性流产再次妊娠孕妇流产的价值研究

目的：探讨子宫动脉血流参数[搏动指数(PI)、阻力指数(RI)、收缩期/舒张期血流速度(S/D)]联合血清β-人绒毛膜促性腺激素(β-HCG)、孕酮(P)、雌二醇(E₂)预测复发性流产(RSA)再次妊娠孕妇流产的价值。方法：选取2021年1月～2022年10月安徽省妇幼保健院收治的RSA再次妊娠孕妇145名(RSA组),另选取同期我院145名健康孕妇(对照组),根据妊娠结局将RSA再次妊娠孕妇分为流产组(65例)和活产组(80例)。检测血清β-HCG、P、E₂水平,并采用经阴道超声检测子宫动脉血流参数。多因素Logistic回归分析影响RSA再次妊娠孕妇流产的因素,受试者工作特征(ROC)曲线分析子宫动脉血流参数联合血清β-HCG、P、E₂预测RSA再次妊娠孕妇流产的价值。结果：RSA组PI、RI、S/D高于对照组,血清β-HCG、P、E₂水平低于对照组(P<0.05)。流产组PI、RI、S/D高于活产组,血清β-HCG、P、E₂水平低于活产组(P<0.05)。多因...     

妊娠高血压患者血清瘦素、Cys C及beta-HCG水平检测的临床意义

目的:研究妊娠高血压患者血清瘦素、胱抑素C(Cys C)以及人绒毛膜促性腺激素(β-HCG)水平检测的临床意义。方法:选取2014年4月到2015年4月我院收治的妊娠高血压患者90例(妊娠高血压组),另选同期正常妊娠者90例(正常妊娠组),健康体检非妊娠妇女90例(对照组),测量三组血清瘦素、Cys C以及β-HCG水平,并分析各指标的相关性。结果:妊娠高血压组和正常妊娠组血清瘦素、Cys C以及β-HCG水平均显著高于对照组,比较差异具有统计学意义(P0.05),妊娠高血压组血清瘦素、Cys C以及β-HCG水平均显著高于正常妊娠组,比较差异具有统计学意义(P0.05);妊娠高血压越严重血清瘦素、Cys C以及β-HCG水平越高;妊娠高血压患者血清瘦素与Cys C和β-HCG均呈正相关关系(P0.05),Cys C与β-HCG也呈正相关关系(P0.05)。结论:检测血清中瘦素、Cys C和β-HCG水平有利于妊娠高血压的诊断,体检时发现上述物质异常升高要高度重视。     

低分子肝素与小剂量阿司匹林联合可有效治疗复发性流产

为了弄清低分子肝素、小剂量阿司匹林在治疗复发性流产患者的临床疗效,本研究选取2012年6月~2015年1月在我院治疗的138例复发性流产患者为研究对象,采用随机数字表法分为肝素组、阿司匹林组、联合组各46例,分别给予低分子肝素、小剂量阿司匹林、低分子肝素联合小剂量阿司匹林进行临床治疗。试图通过比较3组治疗前后激素水平、凝血功能、免疫功能、妊娠结局阐明治疗复发性流产患者的临床疗效。结果表明激素水平:联合组雌二醇(E2)、孕酮(P)血清绒毛膜促性腺激素(β-HCG)含量明显高于肝素组、阿司匹林组(t=2.998~5.176,p0.05);凝血功能:联合组凝血酶时间(TT)明显高于肝素组、阿司匹林组,D-二聚体(D-D)明显低于肝素组、阿司匹林组(t=3.708~3.643,p0.05);免疫功能:联合组CD4+、CD4/CD8明显低于肝素组、阿司匹林组(t=2.821~6.998,p0.05);妊娠结局:联合组患者活产率明显高于肝素组、阿司匹林组(84.78%vs 60.87%vs 58.70%),(x~2=6.646~7.720,p0.05)。显然,本研究结果表明:低分子肝素联合小剂量阿司匹林对于保持复发性流产患者的情况稳定以及其激素水平的提高具有显著的意义,抑制血栓前状态,增强母体对胚胎的免疫耐受能力,改善妊娠结局,安全有效,值得临床应用推广。     

血清β-HCG、PLGF联合VEGF水平在输卵管妊娠诊断鉴别中的临床应用

目的:探讨血清β-人绒毛膜促性腺激素(β-HCG)、胎盘生长因子(PLGF)联合血管内皮生长因子(VEGF)水平在输卵管妊娠诊断鉴别中的价值。方法:收集我院于2014年1月~2015年1月间收治的输卵管妊娠患者50例作为观察组。另取同期在我院体检的正常宫内妊娠的孕妇50例作为对照组。采用酶联免疫法检测血清中VEGF、PLGF水平,采用放射免疫法检测血清中β-HCG水平,观察并比较两组患者血清VEGF、PLGF、β-HCG水平,计算灵敏度及特异度。结果:观察组血清β-HCG、PLGF水平低于对照组,VEGF水平高于对照组,差异均有统计学意义(均P0.05)。血清β-HCG+PLGF+VEGF联合检测的灵敏度、特异度均较各单一指标检测高,差异均有统计学意义(P0.05)。结论:通过β-HCG、PLGF联合VEGF检测方式可有效的提高诊断准确率。     

滋肾育胎丸对早期先兆流产患者血清孕酮、β-HCG水平及血液流变学的影响

目的:探讨滋肾育胎丸对早期先兆流产患者血清孕酮、β-人绒毛膜促性腺激素(β-HCG)水平及血液流变学的影响。方法:选取2018年1月-2020年1月我院收治的早期先兆流产患者100例,按随机数字表法分为对照组和观察组各50例。对照组给予常规西医治疗,观察组在对照组基础上给予滋肾育胎丸治疗,治疗2周后观察两组治疗前后血清孕酮、β-HCG水平、高切全血黏度、纤维蛋白原以及红细胞比容,并比较两组临床疗效及不良反应。结果:治疗2周后,两组患者血清孕酮、β-HCG水平均高于治疗前,且观察组高于对照组(P<0.05)。观察组总有效率为92.00%(46/50),明显高于对照组的74.00%(37/50),差异有统计学意义(P<0.05)。两组患者治疗2周后高切全血黏度、纤维蛋白原均较治疗前降低,且观察组低于对照组(P<0.05);两组患者治疗前后、两组组间红细胞比容比较差异无统计学意义(P>0.05)。两组不良反应发生率比较差异无统计学意义(P>0.05)。结论:滋肾育胎丸治疗早期先兆流产患者疗效确切,能够提高血清孕酮、β-HCG水平,改善患者血液流变学,且安全性较好,值得临床推广。     

血清妊娠相关血浆蛋白A在诊断异常妊娠中的临床意义

目的:探讨血清妊娠相关血浆蛋白A(PAPP-A)在诊断异常妊娠中的临床意义,分析其与异常妊振的关系。方法:选取299例5~13周的正常早孕妇为正常早孕组,同期选取稽留流产86例,先兆流产54例,异位妊娠76例为异常妊娠组,用酶联免疫吸附试验(ELASA)测定两组受试者的血清PAPP-A水平,分析两组受试者各个孕周内的血清PAPP-A水平的差异。结果:稽留流产孕妇在各个孕周内(9~13周)的血清PAPP-A水平显著低于同孕周内正常早孕孕妇(t值分别为9.500,8.113,3.511,9.538,8.504,P值均0.05);稽留流产孕妇总的平均血清PAPP-A水平亦低于常早孕孕妇(t=3.651,P值均0.05);异位妊娠孕妇在各个孕周内(9~13周)的血清PAPP-A水平显著低于同孕周内正常早孕孕妇(t值分别为7.976,9.030,9.941,11.625,14.079,12.569,P值均0.05),异位妊娠孕妇总的平均血清PAPP-A水平亦低于常早孕孕妇(t=28.168,P值均0.05);先兆流产孕妇(除孕8周)与正常早孕妊娠血清PAPP-A水平比较无显著统计学意义。结论:血清PAPP-A水平在异常妊娠如异位妊娠、稽留流产中显著降低,可作为诊断异位妊娠、稽留流产及先兆流产辅助诊断的生物学指标。     

血清孕酮、β-HCG及CA125水平在宫外孕诊断中的临床应用

目的:探讨血清孕酮、人绒毛膜促性腺激素(HCG)及癌抗原125(CA125)水平在宫外孕诊断中的临床应用价值。方法:选择我院妇产科收治的61例宫外孕患者作为观察组,同期选择正常早孕孕妇35例作为对照组,检测并对比两组血清孕酮、β-HCG 48h内增长率及CA125水平,研究三项指标分别检测和联合检测对宫外孕诊断的特异性、敏感性。结果:观察组血清孕酮、β-HCG48 h增长率及CA125检测水平均显著低于对照组,比较差异有统计学意义(P0.05);单独应用时CA125对于宫外孕具有较高的特异性,而β-HCG 48 h内增长率具有较高的敏感性,三项指标联合检测特异性及敏感性均显著优于单一指标,比较差异具有统计学意义(P0.05)。结论:血清孕酮、β-HCG及CA125指标水平的分别检测或联合检测,对宫外孕的诊断均有一定的临床价值,而三项指标的联合检测显著优于单一指标。     

病理性妊娠患者血清ACA、β-HCG水平变化及临床意义

目的:探讨病理性妊娠患者血清抗心磷脂抗体(ACA)、绒毛膜促性腺激素(β-HCG)水平变化及其临床意义.方法:收集2008年1月～2010年5月在于我院就诊或住院的孕产妇650例,其中病理性妊娠187例为病理性妊娠组,正常妊娠463例为对照组.应用酶联免疫法(ELISA)检测两组ACA的含量以及酶免疫分析技术(MEIA)检测两组β-HCG的含量.结果:病理性妊娠组各类型病理性妊娠血清中ACA及β-HCG水平均明显高于对照组(P＜0.01);187例病理性妊娠病例中,血清ACA水平与β-HCG水平呈现正相关(r=0.384,P＜0.05).结论:血清ACA及β-HCG水平与病理性妊娠的发生发展过程密切相关,可作为预测病理妊娠的检测指标.     

六种藓类植物茎的比较解剖学研究

通过对6种藓类植物,即褶叶青藓(Brachythecium salebrosum(Web.et Mohr.)B.S.G.)、湿地匐灯藓(Plagiomnium acutum(Lindb.)Kop.)、侧枝匐灯藓(Plagiomnium maximoviczii(Lindb.)Kop.)、大凤尾藓(Fissidensnobilis Griff.)、大羽藓(Thuidium cymbifolium(Doz.et Molk.)B.S.G.)和大灰藓(Hypnum plumaeforme Wils.)嫩茎和老茎的石蜡切片和显微观察发现,同一藓类植株的嫩茎和老茎,茎结构稳定,不同种藓类植物茎横切面具有不同特征.植物体茎横切面形状、表层细胞的层数、细胞大小和细胞壁厚薄、皮层细胞大小和形状、中轴的有无以及比例等特征可以作为藓类植物的分科分类依据之一.     

Photoregulation of seed germination of wild-type and of an aurea-mutant of tomato

Seed germination of an aurea mutant of tomato ( Lycopersicon esculentum Mill.) is promoted by continuous irradiation with red, far-red or long-wavelength far-red (758 nm) light as well as by cyclic irradiations (5 min red or 5 min far-red/25 min darkness). Far-red light applied immediately after each red does not change the germination behaviour. Seed germination of the isogenic wild-type, cv. UC-105, is promoted by continuous and cyclic red light while it is inhibited by continuous and cyclic far-red light and by continious 758 nm irradiation. Far-red irradiation reverses almost completely the promoting effect of red light. The promoting effect (in the aurea mutant) and the inhibitory effect (in the wild-type) of continuous far-red light do not show photon fluence rate dependency above 20 nmol m⁻² s⁻¹. It is concluded that phytochrome controls tomato seed germination throgh low energy responses in both the wild type and the au mutant. The promoting effect of continuous and cyclic far-red light in the au mutant can be attributed to a greater sensitivity to P_fr.     

Cause of Senescence of Nine Sorts of Flowers

The levels of endogenous phytohormones and respiratory rate in nine sorts of flowers such as Cymbidium faberi Rolfe, Nopalxochia ackermannii Kunth and others were investigated both at full bloom and senescence and meanwhile the effect of exogenous phytohormones on prolonging the blossoms and promoting ethylene production were tested. There is a high content of endogenous ethylene in all the long-lived flowere, about 3–16 folds higer than the short-lived ones. There is a high level of ABA at full blooming flowers of short-lived flowers, in which there is no or only some cytokinins in it, but the ratio of CTK (6BA+zeatin)/ABA is smaller(l.7). The endogenous ABA reached a much higher level at senescence in all nine sorts of flowers, so it is reasonable to consider that it is ABA which plays an important role of regulation in controlling flower's senescence. There is a much higher level of GA3 and zeatin in the long-lived flowers which is not demonstrated in the shortlived ones. The respiratory rate is one of the factors controtling the longevity of flowers, but it does not play a decided role. Application of 6BA and zeatin prolongs distinctly orchid’s longevity, however exogenous IAA through the promotive action on ethylene production, evidently extends the longevity of the flowers of the Nopalxochia ackermannii Kunth.     

Interconnection of parameters of regulation system of lipid peroxidation and of morphophysiological parameters of mouse liver

A complex analysis of seasonal fluctuations of the mean group parameters of the system of regulation of lipid peroxidation has been performed in liver of Balb/c mice. Association of lipid characteristics and morphophysiological parameters is studied in the Balb/c mouse liver. An inter-connection is revealed between the liver index and the amount of lysoforms of phospholipids, the scale and character of the interconnection differing essentially depending on proportion of phos-phatidylcholine in mouse liver phospholipids.     

龙胆科药用植物化学成分的研究现状

龙胆科植物在我国的分布范围很广,且多数为药用植物,其多数种属的药用植物,至今其化学成分尚未被系统研究。综述了目前龙胆科药用植物的化学成分的研究现状及一般提取方法,对近年来发现的环烯醚萜及裂环烯醚萜类化合物进行了总结,为本科药用植物的更深入研究提供了参考。     

Physiological characteristics of various species of strains of carboxydobacteria

Seven strains of aerobic carbon monoxide-oxidizing bacteria (carboxydebacteria) when growing on CO as sole source of carbon and energy had doubling times which ranged from 12–42 h. The activity profiles obtained after discontinuous sucrose density gradient centrifugation indicated that the CO-oxidizing enzymes are soluble and the hydrogenases are membrane-bound in all strains examined. The CO-oxidizing enzymes of Pseudomonas carboxydohydrogena, Pseudomonas carboxydoflava, Comamonas compransoris, and the so far unidentified strains OM2, OM3, and OM4 had a molecular weight of 230,000; that of Achromobacter carboxydus amounted to 170,000. The molecular weights of the CO-oxidizing and H₂-oxidizing enzymes turned out to be identical. The cell sonicates were shown to catalyze the oxidation of both CO and H₂ with methylene blue, thionine, phenazine methosulfate, toluylene blue, dichlorophenolindophenol, cytochrome c or ferricyanide as electron acceptors. Methyl viologen, benzyl viologen, FAD⁺, FMN⁺, and NAD(P)⁺ were not reduced. The spectrum of electron acceptors was identical for all strains tested. Neither free formate, hydrogen nor oxygen gas were involved in the CO-oxidation reaction. Methylene blue was reduced by CO at a 1:1 molar ratio. The results indicate that CO-oxidation by carboxydobacteria is catalyzed by identical or similar enzymes and that the reaction obeys the equation CO+H₂OCO₂+2H⁺+2e^- as previously shown for Pseudomonas carboxydovorans.Dedicated to Otto Kandler remembering almost three decades of enjoyable cooperation     

Modulation of allostery of pyruvate kinase by shifting of an ensemble of microstates

Since the introduction of the concepts of allostery about four decades ago, much advancement has been made in elucidating the structure-function correlation in allostery. However, there are still a number of issues that remain unresolved. In this review we used mammalian pyruvate kinase (PK) as a model system to understand the role of protein dynamics in modulating cooperativity. PK has a triosephosphate isomerase (TIM)(α/β)₈ barrel structural motif. PK is an ideal system to address basic questions regarding regulatory mechanisms about this common (α/β)₈ structural motif. The simplest model accounting for all of the solution thermodynamic and kinetic data on ligand-enzyme interactions involves two conformational states, inactive E^T and active E^R. These conformational states are represented by domain movements. Further studies provide the first evidence for a differential effect of ligand binding on the dynamics of the structural elements, not major secondary structural changes. These data are consistent with our model that allosteric regulation of PK is the consequence of perturbation of the distribution of an ensemble of states in which the inactive E^T and active E^R represent the two extreme end states. Sequence differences and ligands can modulate the distribution of states leading to alterations of functions. The future work includes: defining the network of functionally connected residues; elucidating the chemical principles governing the sequence differences which affect functions; and probing the nature of mutations on the stability of the secondary structural elements, which in turn modulate allostery.     

（鱼句）亚科花（鱼骨）型鱼类骨骼系统的比较

对我国花型Hemibarbuspattern鱼类作了骨骼系统比较,结果表明,此类型鱼类脑颅较长,副蝶骨平直或稍弯曲,眶蝶骨腹纵嵴发达(铜鱼Coreius septentrionalis例外),下颞窝和咽突中等大,基枕骨后突发达;脑颅中的上筛骨的后突、侧筛骨的外筛突,蝶耳骨的外突、上耳骨的后突、围眶骨和后颞窝等均有明显的差异;咽颅中的舌颌骨、尾舌骨、鳃盖骨和下咽齿的列数等又有显著的区别;附肢骨骼中的腰带骨、脊椎骨中的复合神经骨和第4椎骨腹侧的悬器等也有不同之处。据此,这些差异和区别可作为属间或种间的分类依据。