慢性肾衰竭患者血浆脑钠肽水平与心功能的相关性

目的:探讨慢性肾衰竭(CRF)患者血浆脑钠肽(BNP)水平与心功能的关系。方法:检测90例CRF患者的超声心动图参数、血肌酐及BNP水平,比较并分析CRF患者血浆BNP水平在不同肾功能(CKD)分级和不同NYHA分级下的变化特点及其与心动图参数[左心室后壁厚度(LVPW)、室间隔厚度(IVS)、射血分数(EF)]的相关性。结果:肾小球滤过率60 ml.min-1.1.73 m-2时,不同CKD分期、血透和腹透患者的血浆BNP水平差异均无统计学意义(P0.05),而不同NYHA分组患者间血浆BNP水平比较差异均有统计学意义(P0.01),患者血浆BNP水平与EF值呈负相关关系(P0.05),而与IVS和LVPW均呈正相关关系(P0.05)。结论:CRF患者心功能越差,血浆BNP水平则越高,BNP检测有助于CRF患者心功能受损的诊断和治疗监测。     

B型尿钠肽在心力衰竭临床诊断中的应用

目的探讨血浆B型尿钠肽(BNP)在心力衰竭(HF)临床诊断中应用。方法选择2010年2月-2012年2月,湖南耒阳市人民医院收治并确诊病例40例HF患者作为观察组,同时选择同期在我院心内科检查的非HF患者40例作为对照组。采用BNP检测试剂盒,利用电化学发光法检测两组患者血浆BNP水平,采用心脏彩色多普勒超声测定两组患者LVEDD和LVEF。结果观察组BNP水平为(382.2±113.8)ng/L,高于对照组水平(42.1±10.9)ng/L,(P<0.05);观察组BNP和LVED治疗后水平较治疗前均降低(P<0.05),LVEF较治疗治疗前均增加(P<0.05);BNP水平与HF的发病性关联系数为2.35,有统计学意义(P<0.05)。结论血浆BNP水平与HF存在相关性,对于心力衰竭患者的早期诊断及其预后评估具有较好的临床诊断价值。     

TBIL、Lp-PLA2、Hcy水平与癫痫患者认知功能障碍的相关性研究

目的:探讨血清总胆红素(TBIL)、脂蛋白相关磷脂酶A2(Lp-PLA2)、同型半胱氨酸(Hcy)水平与癫痫患者认知功能障碍的相关性.方法:选取196例癫痫患者为研究对象,依据是否存在认知功能障碍分为认知正常组(n=121)与认知障碍组(n=75).比较两组患者TBIL、Lp-PLA2及Hcy水平,分析癫痫患者认知功能障碍相关影响因素及TBIL、Lp-PLA2和Hcy与蒙特利尔认知评估(MoCA)量表评分的相关性.结果:两组患者病程、发作频率比较,差异有统计学意义(P＜0.05);认知障碍组患者TBIL水平低于认知正常组(P＜0.05),Lp-PLA2、Hcy水平高于认知正常组(P＜0.05);病程、发作频率、Lp-PLA2、Hcy为认知功能障碍的独立危险因素(P＜0.05),TBIL为认知功能障碍保护因素(P＜0.05);血清TBIL与MoCA评分呈正相关(P＜0.05),Lp-PLA2、Hcy与MoCA评分呈负相关(P＜0.05).结论:血清TBIL、Lp-PLA2、Hcy均为癫痫患者发生认知功能障碍的独立影响因素,TBIL水平越低,Lp-PLA2与Hcy水平越高,患者认知功能越差.     

心力衰竭患者血浆TNF-α及脑钠素水平的变化及β-阻滞剂对其的影响

目的:观察心力衰竭(HF)患者血浆肿瘤坏死因子-α(TNF-α)及脑钠素(BNP)水平的变化,及其与心功能分级的关系。探讨TNF-α及BNP在HF发病机制中所起的作用以及β-阻滞剂对HF患者TNF-α及BNP水平的影响。方法:116例HF患者,随机分为常规治疗组和卡维地洛治疗组,予以药物干预8周,检测治疗前后血浆TNF-α及BNP水平,健康对照组68例,同时检测血浆TNF-α及BNP水平。结果:HF组血浆TNF-α及BNP水平与正常对照组相比显著升高(P＜0．01),且与临床心功能分级呈明显正相关(P＜0．01)。HF患者经卡维地洛治疗后血浆TNF-α及BNP水平明显低于治疗前(P＜0．05),而常规治疗组治疗前后无明显差异(P＞0．05)。结论:HF患者血浆TNF-α及BNP水平显著升高,与HF严重程度呈正相关。卡维地洛能下调HF TNF-α及BNP水平,可能是其治疗HF有益的作用机制之一。     

心衰患者B型钠尿肽与左室射血分数、左房室腔的相关性

目的:观察实验组与对照组血浆中脑钠肽(BNP)水平的差异,分析两组患者BNP与左室内径,左房内径及左室射血分数的相关性。方法:选取因各种病因引起的心衰住院患者77例,按EF分为实验组及对照组,其中实验组34例,对照组43例,入院后均经心脏彩色B超检查,Triage检测仪测定血浆BNP水平,测量数据用SPSS17.0软件包处理。结果:实验组LVED、LAD及BNP值明显高于对照组,两组之间具有明显统计学意义(P0.01),BNP与左室射数分数(LVEF)呈负相关(r=-0.524,P0.05),BNP与左房内径(LAD)、左室舒张末期内径(LVEDD)呈正相关(r=0.567,P0.05、r=0.630,P0.05)。结论:心力衰竭越严重,血浆BNP水平越高,心力衰竭患者BNP的血浆水平与LVEF负相关,与LAD、LVEDD正相关,BNP是诊断心衰的可靠指标,应大力推广及普及。     

甲状腺机能亢进性心脏病患者血浆B型脑钠肽含量的变化

目的:观察甲状腺机能亢进性心脏病(甲亢心)患者血浆B 型脑钠肽(BNP)含量的变化,探讨BNP与甲亢心患者的NYHA(纽约心脏病协会)心功能分级、右室内径(RVD)、左室舒张末横径(LVEDD)、左室射血分数(LVEF)的相关性. 方法:64例甲亢心患者、32例甲亢患者及22例健康对照者均测定血浆BNP含量 . 甲亢心患者测量右室内径(RVD),舒张末左室内径(LVEDD),记录左室射血分数(LVEF). 结果:甲亢心组血浆BNP 含量明显高于甲亢组及健康对照组(P均＜0.01),但甲亢组血浆BNP 含量与健康对照组间无统计学差别(P＞0.05);甲亢心功能NYHAⅡ级组和NYHA Ⅲ～Ⅳ级组患者血浆BNP 含量显著高于甲亢心功能正常组和健康对照组(P＜0. 01),甲亢心功能正常组血浆BNP 含量与健康对照组无显著性差异 (P＞0.05) ;甲亢心组血浆BNP 含量与RVD(r=0.614, P＜0.01) ,LVEDD(r= 0.632, P＜0. 01) 正相关,与EF (r =-0.706, P＜0.01)负相关. 结论:甲亢心患者血浆BNP 含量检测可作为一项早期诊断甲亢心有用的生化指标.     

sST2、Lp-PLA2、BNP与慢性心力衰竭患者心功能及预后的关系研究

目的 研究可溶性ST2(sST2)、脂蛋白相关磷脂酶A2(Lp-PLA2)、脑钠肽（BNP）与慢性心力衰竭患者心功能及预后的关系。方法 回顾性分析2019年2月—2020年8月于该院治疗的107例慢性心力衰竭患者的临床资料，设为研究组，另选取同时期进行健康体检患者82例，作为对照组。比较不同人群sST2、Lp-PLA2、BNP水平，分析影响慢性心力衰竭患者预后的危险因素，绘制ROC曲线，计算sST2、Lp-PLA2联合BNP检测预测慢性心力衰竭患者预后的效果。结果 研究组sST2、Lp-PLA2、BNP水平均高于对照组（P<0.05）。随着心功能级别越高，sST2、Lp-PLA2、BNP水平逐渐升高（P<0.05）；经非条件多因素logistic回归模型分析得，心功能分级、sST2、Lp-PLA2、BNP为影响慢性心力衰竭患者预后的独立危险因素（P <0.05）;ROC曲线示：sST2、Lp-PLA2、BNP单独检测以及三者联合检测AUC分别为0.797、0.825、0.848、0.939，以三者联合检测AUC值（95%CI:0.896～0.983）最大。结论 sST...     

血浆脑钠肽前体与AECOPD患者心功能的相关性研究

目的 采用血浆氨基末端脑钠肽前体(NT-pro BNP)水平评价慢性阻塞性肺疾病急性加重期(AECOPD)患者心脏功能的相关性研究.方法 对广州医学院第一附属医院急诊科收治AECOPD患者71例进行血浆NT-pro BNP、血生化、心脏生化及心脏超声(入院48 h内)等检测,比较NT-pro BNP水平正常组和升高组一般情况、血生化、心脏生化及心脏超声;分析NT-pro BNP水平与血生化、心脏生化及心脏超声等之间的相关性.结果 NT-pro BNP值正常组和升高组的年龄、体温、平均动脉压(MAP)、心率、呼吸、血肌酐清除率(CCr)、肌酸激酶(CK-MB)、肌红蛋白(Myo),比较差异无统计学意义(P＞0.05),体质量指数(BMI)、肌钙蛋白(Tn-I)两组间比较差异有统计学意义(P＜0.05或P＜0.01).心脏超声示RA、RV、LA、LVDd、LVDs值两组间比较差异无统计学意义(P＞0.05),WBC、IVS、LV、EF、PASP值两组间比较差异有统计学意义(P＜0.05).升高组NT-pro BNP值与年龄、体温、Tn-I、Myo、LVDd、IVS、PASP呈正相关,与BIM、Hot、CCr、LV、EF呈负相关.结论 血浆NT-pro BNP值的升高与AECOPD患者的心功能状态存在相关性,NT-proBNP可用于早期评价AECOPD患者的心脏功能.     

B型利钠肽在心力衰竭中的临床应用价值

目的：探讨血浆B型利钠肽（BNP）对心力衰竭（HF）诊断和预后判断的价值。方法：选取95例明确诊断为HF的患者,50例健康人作为对照组,测定其血浆BNP水平,进行治疗前后对比观察,并且随访观察HF患者心脏事件的再发生。结果：血浆BNP水平在HF患者不同心功能分级组和对照组之间差异均有统计学意义,且心功能越差,其浓度越高（P〈0.01）;并且血浆BNP在HF患者治疗前后比较,差异也有统计学意义（P〈0.01）;随诊患者再发生心脏事件组血浆BNP出院时浓度明显高于未发生心脏事件组（P〈0.01）。结论：血浆BNP在HF患者中明显升高,对HF临床诊断和预后判断有重要意义。     

急性脑梗死与血浆脂蛋白相关磷脂酶A2的相关性研究

目的研究血浆脂蛋白相关磷脂酶A2(lipoprotein-associated phospholipase A2,Lp-PLA2)水平与脑梗死患者患者神经功能缺损程度和脑梗死体积之间的关系。方法选用2012年1月~2014年4月我院收治的急性脑梗死患者108例作为研究组和97例体检健康者作为对照组,使用酶联免疫吸附法(ELISA)检测血浆中Lp-PLA2的浓度。计算脑梗死体积和对神经功能缺损程度评估。结果脑梗死体积与血浆中Lp-PLA2浓度呈正相关,差异具有统计学意义(P0.05);Lp-PLA2与神经功能缺损程度呈正相关,差异具有统计学意义(P0.05);急性脑梗死组血浆Lp-PLA2明显高于健康组,差异具有统计学意义(P0.05)。结论血浆Lp-PLA2浓度身高与神经功能缺损程度以及脑梗死体积有关。     

Value of D-Dimers in patients with acute aortic dissection

Objective: To evaluatel the value of D-dimers in patients with acute aortic dissection (AAD). Methods: This study consisted of 16 patients with AAD and 27 non-AAD patients. Serum D-dimets were measured by Sta-Liatest D-DI immunoturbidimetric assay. Results: D-dimer level was higher (P ＜ 0.001) in patients with AAD(7.91 ± 5.52 μg/ml) than that in non- AAD group(1.57±1.24 μg/ml). D-dimer was positive (＞0.4 μg/ml) in all patients with AAD and in 10 control group patients (37%). Among patients with acute AAD, D-dimers tended to be higher in Stanford A than in Stanford B (8.67 ± 4.31 μg/ml vs. 3.24±1.27 μg/ml, P ＜0.01). D-dimer values tended to be higher in more extended disease(3.84 ± 1.65 μg/ml, 8.57 ± 3.58 μg/ml and 11.87 ± 5.69 μg/ml in thoracic aorta, thoracic and abdominal aorta, thoracic and abdominal aorta and iliacal arteries, respectively, P ＜ 0.05 for both 8.57 ± 3.58 and 11.87 ± 5.69 vs. 3.84 ± 1.65 ). Including the control group into the analysis, we found a sensitivity of 100%, a negative predictive value of 100%, and a specificity of 66% and a positive predictive value of 64% for D-dimer in diagnosis of AAD in our patients with suspected AAD. Conclusion: D-dimer was elevated in patients with AAD. A negative D-dimer test result could be useful in excluding AAD.     

Research of combined liver-kidney transplantation model in rats

Objective： To set up a simple and reliable rat model of combined liver-kidney transplantation. Methods： SD rats served as both donors and recipients. 4℃ sodium lactate Ringer＇s was infused from portal veins to donated livers,and from abdominal aorta to donated kidneys, respectively. Anastomosis of the portal vein and the inferior vena cava （IVC） inferior to the right kidney between the graft and the recipient was performed by a double cuff method, then the superior hepatic vena cava with suture. A patch of donated renal artery was anastomosed to the recipient abdominal aorta. The urethra and bile duct were reconstructed with a simple inside bracket. Results： Among 65 cases of combined liver-kidney transplantation, the success rate in the late 40 cases was 77.5%. The function of the grafted liver and kidney remained normal. Conclusion： This rat model of combined liver-kidney transplantation can be established in common laboratory conditions with high success rate and meet the needs of renal transplantation experiment.     

BLOOD PRESSURE CHANGE WITH AGE IN SALT-SENSITIVE TEENAGERS

Objective To observe blood pressure change with age in salt-sensitive teenagers whose salt sensitivity were determined by repeated testing.Methods Salt sensitivity was determined through intravenous infusion of normal saline combined with volume-depletion by oral diuretic furosemide in 55 teenagers. After five years, salt sensitivity was re-examined and subject blood pressure was followed up. Blood pressure changes in salt-sensitive teenagers were compared to that of non-salt sensitive teenagers over five years.Results After 5 years, the repetition rate of salt sensitivity determined by intravenous saline loading is 92.7%. In teenagers with salt sensitivity on the baseline, both the systolic blood pressure increments and increment rates were much higher than non-salt sensitive teenagers (12.7±12.1 mmHg vs. 2.8±5.2 mmHg, P＜ 0.01; 12.2%± 12.0% vs. 2.5% ±4.4%, P＜ 0.001,respectively). There was a similar trend for diastolic blood pressure (8.4 ± 6.4 mmHg vs. 3.7 ± 6.4 mmHg, P = 0.052; 13.2% ±10.6 % vs. 6.8%± 10.1%, P = 0.053, respectively).Conclusions Salt sensitivity determined by intravenous saline loading showed good reproducibility. Blood pressure increments with age were much higher in salt-sensitive teenagers than non-salt sensitive teenagers, especially in terms of systolic blood pressure.     

安心颗粒对急诊经皮冠状动脉介入术后生活质量影响的研究

目的：评价使用安心颗粒对急诊经皮冠状动脉介入术（PPCI）术后生活质量的影响.方法：将160例接受PPCI的急性ST段抬高型心肌梗死患者随机分为安心颗粒组（术前顿服安心颗粒8.8g,术后安心颗粒4.4 g/次,每日2次）和对照组（仅接受基础药物治疗）.所有患者均服用阿司匹林、氯吡格雷和阿托伐他汀.分别在入院时、出院前1d、出院后180 d时,应用心肌梗死多维度量表（MIDAS）、中文版SF-36评价量表对患者生活质量评分.并观察术后30 d以内的出血并发症、血小板减少症发生情况.结果：入院时和出院前1d,两组患者的心肌梗死MIDAS、SF-36量表评分比较无差异（P＞0.05）;出院后180 d时,与对照组比较,安心颗粒组MIDAS、SF-36评分明显减低（P＜0.05）;组内与入院时比较,两组出院前1d、出院后180 d时,MIDAS、SF-36评分均降低（P＜0.05）.两组患者在随访期间均无大量出血、少量出血、重度和极重度血小板减少症发生,安心颗粒组有4例、对照组有7例发生不明显出血（P＞0.05）.两组发生轻度血小板减少症的患者数比较无差异（P＞0.05）.结论：PPCI使用安心颗粒,能改善急性ST段抬高型心肌梗死患者的生活质量,且不增加出血风险.     

The comparative studies of the influences of Urapidil and Nicardipine on sino-atrial node function, atrio-ventricular node function and hemodynamics

Objective:To investigate the influences of urapidil and nicardipine on rabbit sinus function,atrio-ventricular node function and hemodynamics.Methods:Thirty-two Angora's rabbits were selected and randomly divided into four groups.U1 group:urapidil 0.25 mg/kg;U2 group:urapidil 0.5 mg/kg;N1 group:nicardipine 10 μg/kg;N2 group:nicardipine 20 μg/kg.All these medicine were administrated within 30 seconds.Measurements were taken before and after the administration of urapidil or nicardipine for the following data:mean blood pressure(MAP),heart rate(HR),sino-atrial conduction time(SACT),maximal sinoatrial recovery time(SNRTmax)corrected sinus node recovery time(CSNRT),index of sinus node recovery time(SNRTI),Wenckebach A-V conduction frequency (WB),and P-R interval.Results:Significant MAP and HR changes were identified in all of the four groups before and after administration of both urapidil and nicardipine.No significant changes could be found in the rest of the parameters.Intergroup analysis showed that SACT and CSNRT of N1 and N2 groups were shorter than those of the U2 group(P＜0.01);the MAP decreased(P＜0.01)and the HR increased drastically(P＜0.01).Conclusions:Neither urapidil(0.25 mg/kg,0.5 mg/kg)nor nicardipine(10μg/kg,20μg/kg)has any significant influence on rabbit sinus function or rabbit atrio-ventricular node function.Nicardipine could be a better choice than urapidil for parafunctional sinus node patients.     

Expression of OPGmRNA and ODFmRNA in the patients of hip fracture due to osteoporosis

Objective：To investigate the gene expression of osteoprotegerin（OPG） and osteoclast differentiation factor（ODF） in the bone tissue of patients with hip fracture due to osteoporosis. Methods：OPGmRNA and ODFmRNA in the bone tissue in 50 cases of osteoporosis sufferers（over 50 years old） with hip fracture（Observer Group） and 30 cases of hip facture sufferers with no osteoporosis（Control group） were analyzed with the Semi-Quantitative RT-PCR method. Results：The mRNA expressed of ODF, OPG were both high in the patients with hip fracture. In the control group, the expression of OPG mRNA was observed, while the expression of ODF mRNA was very slight. Conclusion：Aged patients contained all signals including OPG, ODF that are essential for inducing osteoclastogenesis and promoting bone resorption.     

Scientific principles and rigorous processes should be followed in developing clinical guidelines for therapeutic interventions of integrative medicine

A clinical guideline for the therapeutic interventions of integrative medicine may be defined as a written document which states a series of recommendations on therapeutic interventions of integrative medicine for a special disease or condition. The guideline may provide assistance to medical professionals in making clinical decisions aimed at improving the clinical outcome of patients and reducing the costs of medical care（~＇4~. Recommendations issued by a guideline should be based on the best available evidence in both Western and Chinese medicine. For fulfilling this purpose, the development of clinical guidelines for therapeutic interventions in the field of integrative medicine should follow scientific principles and undergo a rigorous processes.     

Dynamic Changes in Serum Estradiol and Progesterone levels in Patients of Premenstrual Syndrome with Adverse Flow of Liver-qi

Objective:To probe into the influence of changes of ovarian hormones on the pathogenesis of the specific sub-type premenstrual syndrome(PMS)and reveal partial microcosmic mechanisms of adverse flow of liver-qi.Methods:Estradiol(E2)and progesterone(P)levels in serum were determined at different phases of menstrual cycle by radioimmunoassay.Results:In the group of PMS with adverse flow of liver-qi.the secretive peak value Of E2 and P at the follicular phase significantly decreased,and the secretive peak value at the luteal phase did not come into being.Conclusions:Low E2 and P secretive peak at the follicular phase and absence of secretive peak at the luteal phase is one of the microcosmic mechanisms of PMS with adverse flow of liver-qi.One of the pathophysiologic mechanisms of specific sub-type PMS is probably the continuous low level of E2and P.     

Real-time Three-dimensional Echocardiography in Assessment of Left Ventricular and Right Ventricular Volumes

Real-time three-dimensional echocardiography (RT3DE)is a new ultrasound technique that enables dynamic threedimensional visualization and quantification of the heart in real time. Investigation of feasibility and methodology of RT3DE in determining left ventricular (LV) and right ventricular (RV) volumes, RT3DE was performed in 35 normal adults using Philips SONOS 7500 system with a 2-4 MHz matrix array transducer. The 60°×60° "pyramid" volume database was obtained and analyzed on a TomTec echo workstation. Both LV and RV volumes were calculated with four 3DE methods (i.e. apical 2, 4, 8, and 16-plane) through manually tracing ventricular endocardial borders in end diastole and end systole. Stroke volumes were then calculated. LV volume was also measured by 2DE Simpson's rule using GE VIVID 7 ultrasound machine.     

SCREENING FOR A 21-CHROMOSOME ABNORMALITY IN PREIMPLANTED EMBRYOS OF ELDERLY WOMEN

Increasing maternal age is the only etiological factor unequivocally linked to Down's syndrome in humans. The occurrence rate of newborns with Down's syndrome is about 1/220 in women over 35 years old. However, the occurrence rate in embryos fertilized in vitro, of the elder woman is unclear. Using FISH we screened the number of chromosome 21 in preimplanted embryos of 5 elderly women (average age, 38.4 years) to study the feasibility and necessity of screening trisomy 21 in embryos in patients over 35 years old at the in vitro fertilization (IVF) center.