Alzheimer病患者性激素水平测定与ApoE基因分型研究

检测散发性Alzheimer病(AD)患者与健康老年人血清雌二醇(E2)、睾酮(T)、促滤泡成熟素(FSH)、促黄体生成素(LH)水平,分析ApoE基因型和性激素水平与中国AD患者的相关性.采用放射免疫分析方法对81例Alzheimer病患者和98例正常老年人性激素水平测定,用聚合酶链反应限制性片段长度多态性分析(PCR-RFLP)方法分析ApoE基因型.结果为:AD组女性血清雌二醇37.25 pg·mL-1、男性睾酮2.22 ng·mL-1、促滤泡成熟素男性10.39 U·L-1、女性21.52 U·L-1、促黄体生成素男性7.54 U·L-1、女性9.42 U·L-1;正常组女性血清雌二醇39.09 pg·mL-1、男性睾酮4.07 ng·mL-1、促滤泡成熟素男性11.74 U·L-1、女性28.93 U·L-1、促黄体生成素男性1.62 U·L-1、女性6.28 U·L-1.AD组和正常对照组的ApoE基因频率存在差异,携带ApoE4的比例分别为16.1%、12.2%.ApoE4等位基因可能是中国散发性AD发生的危险因素.携带ApoE4基因型的AD患者血清雌二醇、睾酮水平明显低于对照组.提示雌二醇、睾酮水平下降可能与AD发病相关.     

口服降糖药继发失效的2型糖尿病患者β细胞功能及其影响因素

为研究口服降糖药继发失效的2型糖尿病患者内源性胰岛β细胞功能及病程、肥胖、血脂等因素对其的影响.以98例住院的2型糖尿病患者为研究对象,静脉注射1mg胰高血糖素,刺激前和刺激后6min的ΔCP值表示内源性胰岛β细胞分泌功能.根据体重指数(bodymassindex,BMI)、病程和口服降糖药(oralhypoglycemicagents,OHA)有效和继发失效(secondaryfailure,SF)分组,比较各组ΔCP值,分析BMI、病程等对ΔCP值的影响.结果发现:①空腹C肽(F CP)随BMI增加而增加,BMI<23、23≤BMI<25、BMI≥25组间比较有显著性差异(P<0.01),但ΔCP三组间无明显差异.②ΔCP随病程的延长呈进行性下降(P<0.05),病程小于5年、5～10年和大于10年各组中发生口服降糖药继发失效的分别为58%、76%、89%.③非肥胖(BMI<23和23≤BMI<25)组:SF发生率分别为79%、68%,SF组ΔCP均比OHA组显著降低(P<0.001).肥胖(BMI≥25)组:SF发生率为69%,SF组ΔCP比OHA组低,无显著性差异.SF组病程比OHA组病程长(P<0.05).④ΔCP与BMI、TG呈正相关(r=0.33,P=0.001;r=0.33,P=0.001),与病程呈负相关(r=-0.31,P=0.002).多元逐步回归分析示病程对ΔCP影响较大.表明肥胖的2型糖尿病在疾病的早几年比非肥胖的2型糖尿病存在明显高胰岛素血症.内源性胰岛β细胞分泌功能主要与病程有     

女性不孕症患者血清性激素测定的应用价值

目的:探讨血清性激素变化在女性不孕症中的价值.方法:对50例女性不孕症患者进行血清性激素六项[黄体生成素(LH)、促卵泡生成素(FSH)、泌乳素(PRL)、雌二醇(E2)、睾酮(T)、孕酮(P)]测定,分析激素水平对不孕症的影响.结果:不孕症组与对照组比较,LH、FSH、PRL差异有高度显著性(P<0.01),E2、T、P差异无显著性(P>0.05).结论:血清性激素水平的变化与女性不孕症的关系密切,可为临床判断不孕症的病因、诊断和治疗提供可靠的依据.     

地屈孕酮联合来曲唑对子宫内膜异位症患者生育指数的影响

探究地屈孕酮联合来曲唑对子宫内膜异位症患者生育指数的影响。选取于2018年5月-2019年4月在本中心治疗的96例子宫内膜异位症患者,随机分为对照组和联合组,各48例。其中对照组给予来曲唑治疗,联合组在对照组的基础上加用地屈孕酮治疗。对比2组临床疗效,激素水平[促黄体生成素(LH)、促卵泡激素(FSH)、雌二醇(E2)],血清水平[糖类抗原125(CA125)、血管内皮生长因子(VEGF)、基质金属蛋白酶3(MMP3)]以及生育指数。治疗后,联合组总有效率91.67%较对照组72.92%显著升高(P0.05);2组LH、FSH、E2、CA125、VEGF、MMP3水平与治疗前相比均明显降低(P0.05),且联合组明显低于对照组(P0.05);2组生育指数较治疗前均明显升高(P0.05),且联合组明显高于对照组(P0.05)。地屈孕酮联合来曲唑治疗子宫内膜异位症效果明显,可有效降低血清激素水平,提高生育指数。     

菟蓉补肾方治疗多囊卵巢综合征临床观察

观察菟蓉补肾方治疗多囊卵巢综合征(PCOS)的临床疗效。对确诊的30例PCOS患者采用菟蓉补肾方治疗3个月经周期,观察记录治疗前后体重指数(BMI)、基础体温(BBT)、月经周期、促黄体生成素(LH)、卵泡刺激素(FSH)、促黄体生成素/卵泡刺激素(LH/FSH)、睾酮(T)等指标变化。治疗后大多数患者体重明显下降、BBT由单相转变为双相、月经周期缩短、月经明显改善,总有效率为76.67%;治疗后患者FSH有一定程度上升,BMI、LH、LH/FSH、T较治疗前明显下降,差异有统计学意义(P0.05)。菟蓉补肾方可以改善PCOS患者的生殖内分泌失调状态、降低体重指数、调整月经周期,值得临床推广应用。     

3种肥胖指标对凉山彝族中心性肥胖的预测

以四川省凉山彝族自治州昭觉县402例(男性197例,女性205例)彝族成年人为研究对象,以国际公认的腰围(WC)指标作为中心性肥胖的判断标准,对身体质量指数(BMI)、人体肥胖指数(BAI)、腰围身高比值(WHt R)预测中心性肥胖的效果进行比较研究.结果表明:彝族男性的身高和体质量高于女性(P0.01),WC略高于女性(P0.05);女性的WHt R和BAI高于男性(P0.01),臀围(HC)和BMI略高于男性(P0.05).线性回归分析表明:彝族男性和女性群体中均是WHt R指数与WC的相关程度最大,其次是BMI指数,BAI指数与WC的相关程度最小.受试者工作特征曲线(ROC曲线)结果显示,彝族男性和女性群体中均是WHt R的曲线面积最大,敏感度和特异度也高于另2个指数的数值.总的来看,在BMI、BAI和WHt R指数对彝族群体中心性肥胖的预测中,WHt R指数的预测效果最好,其次是BMI指数,BAI指数效果最差.     

不同BMI代谢综合征患者罹患动脉粥样硬化性心脑血管疾病的回顾性研究

目的:本研究通过分析不同体重指数(BMI)代谢综合征(MS)患者发生动脉粥样硬化性心脑血管疾病(ASCVD)的情况,探讨相关危险因素。方法:将2009年4月至2015年4月就诊我院的2027例MS患者分为正常体重组(n=382)、超重组(n=1018)、肥胖组(n=627),分析3组间性别、年龄、脉压、腰臀比(WHR)、空腹血糖(FBG)、甘油三酯(TG)、胆固醇(TC)、低密度脂蛋白(LDL-C)、高密度脂蛋白(HDL-C)的差异性,对比三组冠心病(ACD)、脑卒中(CVA)和大血管动脉硬化(AS)的患病情况,对MS患者并发ASCVD的相关危险因素进行Logistic回归分析。结果:3组间ACD、CVA、AS的发生率无统计学差异(P0.05)。超重、肥胖MS组高血压、高TG血症、高TC血症、高LDL-C血症、低HDL-C血症比例高于正常体重组(P0.05)。MS患者并发ASCVD的危险因素包括年龄、性别、BMI、脉压、TG、LDL-C,其中年龄是ASCVD的独立危险因素,而性别、BMI、脉压、TG、LDL-C通过交互作用影响ASCVD的发生。正常体重组MS患者罹患ASCVD的风险与超重、肥胖组无明显差异(P0.05)。结论:不同BMI的MS患者发生ASCVD的风险无显著性差异;BMI正常的MS患者与BMI异常的MS患者具有同样的ASCVD发生风险。     

藏族全膝关节置换病人围手术期BMI值变化的对比研究

目的探讨在接受全膝关节置换术藏族患者体重指数变化及术后疗效的对比研究。方法选取笔者所在医院2010年9月至2016年2月期间入院的膝关节骨关节炎患者90例为研究对象,按体重指数分类亚洲标准标准分为4组:体重正常组(BMI22.9kg/m~2)、超重组(BMI 23～24.9kg/m~2)、肥胖组(25～29.9kg/m~2)、病理性肥胖组(BMI≥30kg/m~2),对比观察术前、术后KSS评分变化、关节功能变化,并进行BMI值变化与关节活动度(ROM)、手术时间、止血带应用时间相关性分析。结果各组患者术后KSS评分与术前相比均有大幅度提高,差异有统计学意义,术后1～6月体重指数与关节活动度显著负相关,与手术时间、止血带应用时间呈正相关。结论全膝关节置换术能够改善藏族肥胖患者疼痛症状,术后功能均明显改善,全膝关节置换术是有效的治疗手段,但病理性肥胖组患者行关节置换术应慎重,建议控制体重后评估手术。     

大学新生肥胖与身体素质的调查研究

为了解推行"阳光体育运动"以来大学新生的肥胖(BMI)和身体素质是否改善,采用文献资料法、频数统计、多重比较等数理统计法对3612名大学新生进行测试,结果表明:1)64.9%大学新生BMI处于正常水平,但男生超重、肥胖现象严重共占25.5%,女生低体重人群占21.2%;2)大学新生的立定跳远、握力体重指数不及格的比例较高分别为12.2%、16.7%,两指标良好及以上水平比例不足35%;3)大学新生握力体重指数依次是低体重组＞正常组＞超重和肥胖组,且呈显著性差异(p＜0.001);4)男生BMI均值为23.62,频临超重边缘,且显著高于女性(p＜0.05).说明肥胖已对大学新生的身体素质产生显著的负面影响.     

Markedness and its Interpretation in Language Use

Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.     

Lower Paleozoic oil relationships within Williston Basin, Canada

The Williston Basin is a significant petroleum province, containing oil production zones that include the Middle Cambrian to Lower Ordovician, Upper Ordovician, Middle Devonian, Upper Devonian and Mississippian and within the Jurassic and Cretaceous. The oils of the Williston Basin exhibit a wide range of geochemical characteristics defined as "oil families", although the geochemical signature of the Cambrian Deadwood Formation and Lower Ordovician Winnipeg reservoired oils does not match any "oil family". Despite their close stratigraphic proximity, it is evident that the oils of the Lower Palaeozoic within the Williston Basin are distinct. This suggests the presence of a new "oil family" within the Williston Basin. Diagnostic geochemical signatures occur in the gasoline range chromatograms, within saturate fraction gas chromatograms and biomarker fingerprints. However, some of the established criteria and cross-plots that are currently used to segregate oils into distinct genetic families within the basin do not always meet with success, particularly when applied to the Lower Palaeozoic oils of the Deadwood and Winnipeg Formation.     

An Analysis of Catherine＇s Character——Wuthering Heights

Wuthering Heights, Emily Bronte＇s only novel, was published in December of 1847 under the pseudonym Ellis Bell. The book did not gain immediate success, but it is now thought one of the finest novels in the English language. Catherine is the key character of this masterpiece, because everybody and everything center on her though she had a short life. We can understand this masterpiece better if we know Catherine well.     

Characterization of Ordovician carbonate reservoirs, southeastern Saskatchewan, Canada

The discovery of the prolific Ordovician Red River reservoirs in 1995 in southeastern Saskatchewan was the catalyst for extensive exploration activity which resulted in the discovery of more than 15 new Red River pools. The best yields of Red River production to date have been from dolomite reservoirs. Understanding the processes of dolomitization is, therefore, crucial for the prediction of the connectivity, spatial distribution and heterogeneity of dolomite reservoirs.The Red River reservoirs in the Midale area consist of 3～4 thin dolomitized zones, with a total thickness of about 20 m, which occur at the top of the Yeoman Formation. Two types of replacement dolomite were recognized in the Red River reservoir: dolomitized burrow infills and dolomitized host matrix. The spatial distribution of dolomite suggests that burrowing organisms played an important role in facilitating the fluid flow in the backfilled sediments. This resulted in penecontemporaneous dolomitization of burrow infills by normal seawater. The dolomite in the host matrix is interpreted as having occurred at shallow burial by evaporitic seawater during precipitation of Lake Almar anhydrite that immediately overlies the Yeoman Formation. However, the low δ18O values of dolomited burrow infills (-5.9‰～ -7.8‰, PDB) and matrix dolomites (-6.6‰～ -8.1‰, avg. -7.4‰ PDB) compared to the estimated values for the late Ordovician marine dolomite could be attributed to modification and alteration of dolomite at higher temperatures during deeper burial, which could also be responsible for its 87Sr/86Sr ratios (0.7084～0.7088) that are higher than suggested for the late Ordovician seawaters (0.7078～0.7080). The trace amounts of saddle dolomite cement in the Red River carbonates are probably related to "cannibalization" of earlier replacement dolomite during the chemical compaction.     

Features of Women's language

Language is a means of verbal communication. People use language to communicate with each other. In the society, no two speakers are exactly alike in the way of speaking. Some differences are due to age, gender, statue and personality. Above all, gender is one of the obvious reasons. The writer of this paper tries to describe the features of women＇s language from these perspectives： pronunciation, intonation, diction, subjects, grammar and discourse. From the discussion of the features of women＇s language, more attention should be paid to language use in social context. What＇s more, the linguistic phenomena in a speaking community can be understood more thoroughly.     

Design and analysis of generic LBS application developing platform

Location based services is promising due to its novel working style and contents.A software platform is proposed to provide application programs of typical location based services and support new applications developing efficiently. The analysis shows that this scheme is easy implemented, low cost and adapt to all kinds of mobile nework system.     

橡胶颗粒沥青混合料低温抗裂性试验研究

以AC-13级配为基础,将橡胶颗粒代替部分集料掺入混合料中,以低温弯曲试验为评价方法对不同橡胶颗粒掺量下沥青混合料的低温抗裂性进行研究,并引入应变能密度值对混合料的低温抗裂性进行综合评价.试验结果表明:橡胶颗粒沥青混合料试件的破坏微应变均超过2 300,满足冬寒区的技术指标;无论是否掺加橡胶颗粒,随着温度的下降,沥青混合料破坏时的最大弯拉强度增大,弯拉应变降低,劲度模量增大;弯曲应变能密度在胶粒掺量为1%左右时具有较大的弯曲应变能密度值,此时橡胶颗粒沥青混合料具有较好的低温抗裂性.     

A computer generator for randomly layered structures

AcomputergeneratorforrandomlylayeredstructuresYUJia shun1,2,HEZhen hua2(1.TheInstituteofGeologicalandNuclearSciences,NewZealand;2.StateKeyLaboratoryofOilandGasReservoirGeologyandExploitation,ChengduUniversityofTechnology,China)Abstract:Analgorithmisintrod…     

低渗透非均质砂岩油藏启动压力梯度研究

理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。     

Quantitative trait loci （QTLs） for quality traits related to protein and starch in wheat

Quality traits in wheat （Triticum aestirum L.） were studied by quantitative trait locus （QTL） analysis in a recombinant inbred line （RIL） population, a set of 131 lines derived from Chuan 35050 × Shannong 483 cross （ChSh）. Grains from RILs were assayed for 21 quality traits related to protein and starch. A total of 35 putative QTLs for 19 traits with a single QTL explaining 7.99-40.52% of phenotypic variations were detected on 10 chromosomes, 1D, 2A, 2D, 3B, 3D, 5A, 6A, 6B, 6D, and 7B. The additive effects of 30 QTLs were positive, contributed by Chuan 35050, the remaining 5 QTLs were negative with the additive effect contributed by Shannong 483. For protein traits, 15 QTLs were obtained and most of them were located on chromosomes 1 D, 3B and 6D, while 20 QTLs for starch traits were detected and most of them were located on chromosomes 3D, 6B and 7B. Only 7 QTLs for protein and starch traits were co-located in three regions on chromosomes 1D, 2A and 2D. These protein and starch trait QTLs showed a distinct distribution pattern in certain regions and chromosomes. Twenty-two QTLs were clustered in 6 regions of 5 chromosomes. Two QTL clusters for protein traits were located on chromosomes 1D and 3B, respectively, three clusters for starch traits on chromosomes 3D, 6B and 7B, and one cluster including protein and starch traits on chromosome 1D.