人工繁殖恒河猴的血清前清蛋白、转铁蛋白、苹果酸脱氢酶和醇脱氢酶遗传多态性研究

用薄层聚丙烯酰胺凝胶电泳方法分析118头人繁殖恒河猴血清四种蛋白质和同工酶遗传基因位点的多态性,结果表明,除醇脱氢酶(ADH)为单态外,其余三个基因位点均表现多态,前清蛋白(PA)可分为AA、AB、AC、AD和BB、CC,EE七种表型,各基因的频率为A 0.85,B 0.072,C 0.042,D 0.009,E 0.034转铁蛋白(Tf)可分为CC、DD、EE、FFGG、CD、CE、CG、CH、DE、DF、DG、DH、EF、EG、EH、FG十七种表型,墓因频率为C 0.064,D 0.380,E 0.188,F 0.111,G 0.244,H 0.014,苹果酸脱氢酶(MDH)可分MDH)1-1和MDH2-1两种表型,基因频率为MDH~10.958和MDH~20.042。     

不同胎龄母婴间血清前白蛋白与锌、钙、镁水平测定

目的　为检测不同孕周母婴间血清前白蛋白 (PA)与锌、钙、镁的水平及它们之间的关系。方法　采用免疫单项扩散法及原子吸收分光光度计火焰法检测了 4 0对早产与 14 8对健康足月母婴血清前白蛋白及锌钙镁的含量。结果　 4 0对早产与 14 8对健康足月母亲血清PA均显著高于新生儿脐血PA(P <0 0 0 1) ,血清锌显著低于新生儿 (P <0 0 0 1) ,血清钙早产母亲显著高于早产儿 ,足月母亲则显著低于足月儿。血清镁早产及足月母亲均略低于新生儿 (P >0 0 5 )。各孕周母婴间PA、镁无相关性 ,锌、钙呈正相关。 (相关系数分别为早产 0 39、0 33,足月 0 4 1、0 35 ,(P <0 0 1) ,早产儿脐血血清PA显著低于足月儿 (P <0 0 0 1) ,脐血血清锌低于足月儿 (P <0 0 1) ,脐血血清钙低于足月儿 (P >0 0 5 )。各孕周新生儿脐血PA与自身锌、钙、镁相关分析无相关性。结论　检测各孕周母婴PA、锌、钙、镁的含量 ,可以综合评价早产儿、足月儿的营养状况。     

Vitamin A transporting proteins in human epidermis and blister fluids

Summary In connection with studies on vitamin A transport to keratinocytes in vivo, the retinol, retinolbinding protein (RBP), and prealbumin contents of blister fluid obtained subepidermally (suction) or intraepidermally (friction) were analyzed. The median concentrations of the three components in suction blister fluid (SBF) were all about 33% of the serum concentrations. Corresponding values for ₂-macroglobulin and total protein, measured as controls, were 27 and 30% respectively. The relative amounts of retinol and prealbumin in friction blister fluid (FBF) were the same as those in SBF. By contrast, FBF contained more RBP (median value 40%; P<0.01 vs SBF value). It is suggested that apo-RBP (RBP without retinol) is generated within the epidermis and contributes to the high RBP value in FBF. FBF constituents are probably derived from the intercellular space of the epidermis, at least during the initial phase of blister formation. Accordingly, RBP and prealbumin were identified in homogenates of pure epidermis. During the later stages of blister formation, FBF resembles an ultrafiltrate of dermal fluid, although different in this respect from SBF.Abbreviations RBP retinol-binding proting - ₂M alpha-2-macroglobulin - SBF suction blister fluid - FBF friction blister fluid     

血清前白蛋白测定在肝脏疾病中的意义

目的:探讨血清前白蛋白(PA)测定在不同肝病中的变化以及肝病时前白蛋白与其肝功能之间的关系。方法:应用免疫比浊法,在日立7150全自动生化分析仪对342例各种肝病进行PA测定及常规肝功能检测。结果:与正常人比较除轻度慢性乙肝(慢乙轻度)差异无显著性(P>0.05),其余肝病患者血清PA均明显低于正常对照组(P<0.01或P<0.005);各肝病间比较,肝硬化代偿期与肝癌及急性肝炎间差异无显著性(P>0.05),重度慢性乙肝(慢乙重度)与肝硬化失代偿期间差异有显著性(P<0.05),其余各肝病间差异均有非常显著性(P<0.01)。结论:血清PA不仅是肝细胞早期受损的敏感指标之一,也是鉴别不同肝病及肝病的不同阶段的有效指标。持别是联合ALT等其它常规肝功能结果,对急、慢性肝炎、肝硬化、肝癌不同阶段的诊断、疗效观察和预后判断有较大意义     

血浆前清蛋白对川崎病患儿冠状动脉病变的预测意义

目的 探讨血浆前清蛋白(PA)水平对川崎病(KD)患儿合并冠状动脉病变(CAL)的预测意义。方法 回顾性分析2014年1月至2018年12月安徽医科大学第一附属医院儿科收治的128例KD患儿(KD组)的临床资料和50例同期健康体检儿童(对照组)的体检资料。KD组根据临床特点分为典型KD组98例和不典型KD组30例,根据是否合并CAL分为CAL组23例和nCAL组105例,记录各组患者PA、中性粒细胞绝对值(NEUT)、血小板计数(PLT)、清蛋白(Alb)、谷丙转氨酶(ALT)、C反应蛋白(CRP)、血沉(ESR)及心脏多普勒超声心动图结果,对各组间以上指标进行相关性分析,并绘制受试者工作特征(ROC)曲线,得出PA的最佳截断值,计算PA判断KD合并CAL的敏感度和特异度。结果 治疗前KD组PA水平为(68.91±40.65)mg/L,低于对照组的(180.20±31.81)mg/L,差异有统计学意义(P<0.05);典型KD组PA水平(67.19±41.29)mg/L低于不典型KD组的(74.53±38.60)mg/L,但差异无统计学意义(P>0.05);CAL组PA水平(53.30±24.73)mg/L低于nCAL组的(72.33±42.69)mg/L,差异有统计学意义(P>0.05);根据ROC曲线,PA的截断值选为82.5 mg/L时,敏感度为87.0%,特异度为69.5%。结论 血浆PA水平有望作为KD患儿合并CAL的预测指标之一。     

Use of the alkaline phosphatase to prealbumin ratio as an independent predictive factor for the prognosis of gastric cancer

BACKGROUNDGastric cancer (GC) is characterized by a low 5-year survival rate. The prognosis is still not satisfactory although it has significantly improved due to developments in medicine. Thus, the identification of more efficient indices for the evaluation of GC prognosis is required. We propose, for the first time, that the alkaline phosphatase (ALP) to prealbumin (PA) ratio (APR) can be used as an independent prognostic factor in GC.AIMTo evaluate the prognostic value the APR in GC.METHODSAccording to the exclusion strategy, we collected the preoperative serologic examination results and clinical information of 409 GC patients treated in Shandong Provincial Hospital from January to December, 2016. By calculating the APR, the neutrophil and lymphocyte ratio (NLR), C-reactive protein (CRP) and albumin (ALB) ratio, platelet and lymphocyte ratio, lymphocyte and monocyte ratio, and the relationship with clinical information, we verified the role of preoperative APR ratio in the prognosis of GC. In addition, we used a Cox model combined with the APR and tumor stage to demonstrate its efficacy in assessing the prognosis of GC patients.RESULTSPreoperative APR was an independent prognostic factor for GC. The median age of patients in the APR-high group was greater compared with that in the APR-low group. Patients with a higher APR had a more advanced clinical stage, higher neutrophil to lymphocyte, CRP to ALB, and platelet to lymphocyte ratios, but a lower lymphocyte to monocyte ratio (P < 0.05). The APR-high group also had higher glycoprotein antigen 199 and carbohydrate antigen 125 levels than the APR-low group (P < 0.05). Median overall survival and disease-free survival were significantly longer in the APR-low group than in the APR-high group. In addition, a Cox model based on the APR and tumor stage was more effective in evaluating the prognosis of patients than models based on stage alone or stage plus the NLR.CONCLUSIONA higher APR is an independent and negative prognostic factor for GC. The prognosis of GC can be better evaluated using a Cox model based on the APR and stage.     

血清前白蛋白水平对心脏重症监护病房急性心力衰竭患者长期预后的影响研究

背景　血清前白蛋白是营养和炎性状态的标志物,血清前白蛋白水平低与冠心病预后不良有关。然而,血清前白蛋白水平对急性心力衰竭（AHF）患者的预后价值尚未确定。目的　探讨入院时血清前白蛋白水平与心脏重症监护病房内AHF患者长期预后之间的关联。方法　回顾性纳入2014年1月-2017年2月在海南省人民医院心脏重症监护病房的AHF患者186例,入院后24 h内检测其血清前白蛋白水平,再进行随访,随访截止日期为2019年2月。根据血清前白蛋白参考值,将患者分为血清前白蛋白>14.0 mg/dl组（119例）和血清前白蛋白≤14.0 mg/dl组（67例）,比较两组患者一般资料及全因死亡、复合终点（由AHF发作引起的全因死亡或再入院）发生率,比较两组患者全因死亡和复合终点的生存曲线,分析全因死亡和复合终点的影响因素。结果　血清前白蛋白≤14.0 mg/dl组患者全因死亡、复合终点发生率高于血清前白蛋白>14.0 mg/dl组（P<0.05）。两组患者全因死亡和复合终点的生存曲线比较,差异有统计学意义（P<0.05）。多因素Cox回归分析显示：血清前白蛋白≤14.0 mg/dl与全因死亡和复合终点有关（P=0.002、<0.001）。结论　检测入院时的血清前白蛋白水平可能有助于监护环境下AHF患者的风险分层,且较低的血清前白蛋白水平可能与心脏重症监护病房接受治疗的AHF患者的长期不良预后有关。     

维持性血液透析患者透析初始血尿酸水平与预后的相关性

目的 探讨维持性血液透析患者透析初始血尿酸水平与预后的相关性。方法 纳入2013年7月～2018年7月于我院透析的309例患者为研究对象,按照尿酸是否升高分为尿酸升高组和尿酸正常组。收集患者临床资料,用二元logistic回归法分析尿酸升高的独立危险因素;Kaplan-Meier生存曲线法分析患者生存预后的影响因素;Log-rank法进行显著性检验。结果 ①共309例患者纳入本研究,男性178例（57.6%）,女性131例（42.4%）。其中,158例（51.1%）患者尿酸升高,151例（48.9%）患者尿酸正常。与尿酸正常组比较,尿酸升高组透析龄更长,但年龄、二氧化碳结合力较低,尿素、前白蛋白较高（均P＜0.05）。②相关性分析结果提示,尿酸与透析龄、尿素、肌酐、甘油三酯、血磷和前白蛋白呈正相关,与年龄、直接胆红素、eGFR、高密度脂蛋白、二氧化碳结合力呈负相关均（均P＜0.05）。③二元logistic逐步回归分析结果显示,男性较女性患者尿酸风险降低（OR=0.086）。随着年龄、二氧化碳结合力和高密度脂蛋白的增加,尿酸的风险减少,但随着前白蛋白和尿素的升高,尿酸风险增加（均P＜0.05）。④全因死亡患者的生存分析结果提示,尿酸升高组患者生存时间高于尿酸正常组（P＜0.05）。结论 前白蛋白和尿素是尿酸升高的危险因素,高尿酸可能是维持性血液透析患者死亡的保护因素。