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1.
缪志强  林勇 《现代医学》2005,33(6):356-359
目的观察单纯阻塞性睡眠呼吸暂停低通气综合征(OSAHS)和OSAHS合并高血压患者的血浆心钠素(ANP)、脑钠素(BNP)水平的变化及其与OSAHS的关系。方法受试对象共47例,平均年龄(44.2±15.3)岁,均给予整夜多导睡眠监测(PSG)。受试者分为3组:单纯OSAHS组(17例),OSAHS合并高血压组(15例),正常对照组(15例)。血浆ANP、BNP采用放射免疫法测定。结果(1)OSAHS合并高血压组血浆ANP、BNP水平较单纯OSAHS组明显增高(P<0.05),单纯OSAHS组又较正常对照组显著增高(P<0.01)。(2)血浆ANP水平与收缩压(SBP)、平均动脉压(MAP)及脉搏氧饱和度SpO2<0.9时间呈显著正相关(P<0.01),与最低SpO2、平均SpO2呈负相关(P<0.05)。(3)血浆BNP水平与平均SpO2呈负相关(P<0.05),与SBP、DBP、MAP及SpO2<0.9时间呈正相关(P<0.01)。结论(1)ANP、BNP在OS-AHS的发病机制中可能起着重要作用。(2)缺氧是导致OSAHS患者清晨血浆ANP增高的主要因素。(3)血压升高是导致OSAHS患者清晨血浆BNP增高的主要因素。  相似文献   

2.
采用放射免疫法测定32例心房纤颤病人和正常人血浆心钠素(ANP)。发现心房纤颤患者的ANP明显低于对照组(P<005);血浆ANP与心功能分级呈负相关(r=-0.570,P<0.05),与心房纤颤病程无关(r=-0.173,P>0.05);不同年龄和病因之间ANP差别无显著性(P>0.05)。提示心房纤颤患者血浆ANP含量取决于心功能状态。  相似文献   

3.
采用放射免疫法测定59例先天性心脏病(先心病)患儿血浆免疫活性心房利钠多肽(ir-ANP)水平,结果显示先心病患儿ir-ANP水平左向右分流型较对照组升高(P<0.01),右向左分流型则无明显差异(P>0.05),心功能Ⅱ级与Ⅰ级相比ir-ANP水平明显升高(P<0.05)。20例患儿右房、肺总动脉、下腔静脉ir-ANP水平分别为213.24±91.07、211.59±92.33和153.64±86.57ng/L。右房及肺总动脉ir-ANP升高(P<0.05),并与下腔静脉ir-ANP水平正相关(r=0.527。0.504,P<0.05)。ir-ANP水平与心脏缺损最大直径、房室容积指数及肺总动脉压、肺小动脉楔压正相关(P<0.05~0.01)。提示左向右分流型先心病时心房容量及压力负荷增加促进ANP释放,心功能减退和肺动脉高压对血浆ANP水平进一步升高。  相似文献   

4.
偏头痛患者血小板和血浆5—HT含量的初步研究   总被引:10,自引:0,他引:10  
余海  殷宗健 《北京医学》1992,14(3):134-136
本文对21例偏头痛患者血小板和血浆5-HT含量和血小板聚集率在发作期和间歇期的变化做了观察,结果表明:偏头痛患者血小板5-HT含量无论是发作期还是间歇期,与对照组比较均显著增高(P均<0.01);血浆5-HT含量在发作期显著低下(P<0.01),而间歇期显著增高(P<0.01);血小板和血浆5-HT比值在发作期明显增高(P<0.01),间歇期无明显变化(P>0.05)。血小板诱导聚集在发作期和间歇期与对照组比较均无明显差异(P均>0.05)。我们认为偏头痛患者血小板和血浆5-HT含量及比值异常可能与其发病机理有关。  相似文献   

5.
汤大鸣  洪秀芳 《新疆医学》1997,27(4):193-194
75例原发性高血压(EH)患者中53例服用依那普利行降压治疗并观察其血浆内皮素(ET)和心钠素(ANP)含量的变化。与正常对照组相比,EH患者血浆ET和ANP含量均明显升高且两者存在正相关关系(p<0.01)。Ⅰ期高血压病患者血浆ET和ANP含量较正常人轻度升高(P>0.05),Ⅰ、Ⅲ期高血压病患者血浆ET和ANP含量均显著高于Ⅰ期(P<0.001)。服用依那普利后EH患者血浆ET和ANP水平均明显下降(P<0.05~0.01)。说明依那普利可有效降低血压,并影响血浆ET及ANP含量,是较好的一线降压药。  相似文献   

6.
观察了35例冠心病病人口服巯甲丙脯酸前后血浆载脂蛋白的变化。结果表明,口服巯甲丙脯酸后血浆载脂蛋白A_1,载脂蛋白A_1/载脂蛋白B_(100)显著增高(P<0.01,P<0.05),载脂蛋白B_(100)无明显变化(P>0.05)。提示巯甲丙脯酸可改变血浆载脂蛋白浓度,从而抑制动脉粥样硬化的发生和发展。  相似文献   

7.
目的探讨厄贝沙坦(irbesartan)对血管内皮功能的影响以及对老年高血压(EH)的疗效。方法64例老年EH患者,给予厄贝沙坦治疗4周,剂量150 ̄300mg/d,60例健康老年人作为对照组,测量两组治疗前后血压及血浆一氧化氮(nitricoxide,NO)和内皮素(endothelin,ET-1)水平。结果治疗前,EH组血浆NO浓度显著低于对照组(P<0.01),而血浆ET-1浓度明显高于对照组(P<0.01);EH组血压变化与血浆NO浓度呈负相关而与ET-1浓度呈正相关。经厄贝沙坦治疗4周后,收缩压及舒张压均明显下降(P<0.01),但心率变化不显著(P>0.05)。治疗总有效率为87.5%。治疗4周后血浆NO水平显著升高(P<0.05),且分期越高,血浆NO及ET-1浓度变化越显著。结论厄贝沙坦有显著的降压疗效,可以显著地修复和改善EH不良的血管内皮结构及功能。  相似文献   

8.
目的:探讨心力衰竭患儿血浆心房利钠肽(ANP)的变化及其临床意义。方法:心力衰竭患儿34例,分成3个亚组,Ⅰ度心衰组14例,Ⅱ度心衰组13例,Ⅲ度心衰组7例。分别测定治疗前后血浆ANP水平、血清肌酸激酶同工酶(CK-MB)水平,并作超声心动图检查,观察血浆ANP水平与左室射血分数(LVEF)之间的关系。选取健康儿童20例作为对照组,以了解小儿心力衰竭时ANP、CK-MB变化情况。结果(:1)心力衰竭组ANP、CK-MB水平均明显高于正常对照组,随着心力衰竭程度的加重,血浆ANP水平逐渐增高,与心衰程度呈正相关,与LVEF呈负相关。而CK-MB与心衰程度、LVEF之间均没有相关性。(2)心功能好转后ANP、CK-MB水平均明显下降(P<0.01),LVEF明显增高(P<0.01)。结论:心力衰竭时,血浆ANP水平明显增高,并且与心衰程度、LVEF有较好的关联。  相似文献   

9.
目的研究高血压病(EH)不同血压水平与胰岛素抵抗(IR)的相关性。方法选取EH患者413例为EH组,根据血压分级标准分为EHA组(258例)、EHB组(108例)和EHC组(47例),同时选取对照组55例。分别测定空腹血糖(FPG)、空腹胰岛素(FINS)、总胆固醇(TC)、三酰甘油(TG)、高密度脂蛋白胆固醇(HDL-C)、尿酸(SUA),并计算胰岛素抵抗指数(HOMA-IR)、β细胞分泌功能指数(HOMA-β),在EH组与对照组间、EHA~C组间进行资料对比。结果 EH组FINS、HOMA-IR及TG比对照组明显增高(P<0.01),HDL-C明显下降(P<0.01),FPG和SUA有增高趋势(P<0.05),HOMA-β和TC在两组间无明显变化(P>0.05)。EH各亚组FINS、HOMA-IR、TC、TG及SUA与血压同步升高(P<0.01),HDL-C进行性下降(P<0.01),而HOMA-β无明显变化(P>0.05)。结论 EH患者血压、FINS、TG、TC、SUA与IR正相关,HDL-C与之负相关;EH患者存在高胰岛素血症,但HOMA-β在正常代偿范围,并使血糖在正常区间波动。  相似文献   

10.
目的 探讨高血压合并脑卒中患者的动态血压变化。方法 对30例正常人(A组)和35例无靶器官损害的高血压者(B组)及32例高血压合并脑卒中患者(C组)进行24小时动态血压记录,并将所得数值在各组间作对照分析。结果(1)与A组比较,B组各项收缩压指标(24h SBP、d SBP及n SBP)均明显增高,有极显著性差异(P<0.01),而各项舒张压指标组间比较无显著性差异(P>0.05)。(2)与A组比较,C组收缩压及舒张压水平均明显增高,有显著或极显著性差异(P<0.05,P<0.01)(3)与B组比较,C组夜间血压明显偏高,有显著性或极显著性差异(P<0.05,P<0.01)。而日间血压两组间比较无显著性差异(P>0.05)。结论 高血压合并脑卒中患者血压明显偏高,且血压昼夜节律消失。夜间血压偏高对脑血管的危害可能更大。  相似文献   

11.
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.  相似文献   

12.
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.  相似文献   

13.
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.  相似文献   

14.
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.  相似文献   

15.
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.  相似文献   

16.
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.  相似文献   

17.
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.  相似文献   

18.
Journal of Nanjing Medical University (English Edition) JNMU, sponsored by Nanjing Medical University, was established in 1987. It is a bimonthly comprehensive English medical journal published locally and abroad.Since 2007, Journal of Nanjing Medical University (English Edition )was granted Elsevier the full publishing and distribution rights worldwide for the Electronic Edition, excluding the People's Republic of China.  相似文献   

19.
Objective To measure Derpl and Blot5 allergen levels in asthmatics' homes in Hongkong.Methods Seventy houses were enrolled for a mite indoor environment study. Dust samples were obtained from two sites of each patients' house: bed and floor. Derpl and Blot5 levels were quantified by a two-site monoclonal antibody-based ELISA technique.Results The levels of Derpl allergens found in bed (geometric mean (GM) 3.43 μg/g of dust; 95%CI, 1.89-4.96 μg/g)and on the floor (GM 1.12 μg/g of dust; 95%CI, 0.71-1.53 μg/g) indicated significant differences (P=0.005). However, the levels of Blot5 allergens found in bed (GM 19.00 μg/g of dust; 95%CI, 0.89-38.90 μg/g) and on the floor (GM 6.14 μg/g of dust; 95%CI, 0.40-11.90 μg/g) showed no statistically significant difference. In addition, in regards to the exposure index for Derpl and Blot5 allergens found in bed and on the floor, 17.6% in bed and 8.6% on the floor had levels of Blot5 ≥ 10 μg/g of dust, higher than those obtained for Derp1 (7.2% and 0% in bed and on the floor respectively, P< 0.05); higher percentages in bed and on the floor (25.0% and 35.7%) were observed for levels of Blot5 =0 μg/g of dust as compared with Derpl in bed and on the floor (4.3% and 14.5% respectively, P< 0.05).Conclusions Derpl and Blot5 are the major allergens found in this regional study, Blot5 is a more potent allergen in Hongkong, probably reflecting the high level of exposure to Blomia tropicalis (Bt). Bt and Dermatophagoides pteronyssinus (Dp) allergens should be included for precise diagnosis and effective immuno-therapeutic treatment of mite allergy in Hongkong.  相似文献   

20.
ANTI-PROLIFERATION EFFECT OF ORIDONIN ON HL-60 CELLS AND ITS MECHANISM   总被引:4,自引:0,他引:4  
Objcetive To investigate the anti-proliferation effect of oridonin on leukemic HL-60 cells and its mechanism. Methods HL-60 cells in vitro in culture medium were given different concentrations of oridonin. The inhibitory rate of cells were measured by microculture tetrazolium (MTT) assay, cell apoptotic rate was detected by flow cytometry (FCM), morphology of cell apoptosis was observed by hoechst 33258 fluorescence staining, and the activity of telomerase was detected using telomere repeat amplification protocol (TRAP) PCR-ELISA before and after apoptosis occurred. Results Oridonin could decrease telomerase activity, inhibit growth of HL-60 cells, and cause apoptosis significantly. The suppression was both in time- and dose-dependent manner. Marked morphological changes of cell apoptosis including condensation of chromatin and nuclear fragmentation were observed clearly by hoechst 33258 fluorescence staining especially after cells were treated 48-60 hours by oridonin. Conclusions Oridonin has apparent anti-proliferation and apoptotic effects on HL-60 cells in vitro, decreasing telomerase activity of HL-60 cells may be one of its most important mechanisms. These results will provide strong laboratory evidence of oridonin for clinical treatment of acute leukemia.  相似文献   

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