首页 | 本学科首页   官方微博 | 高级检索  
相似文献
 共查询到20条相似文献,搜索用时 78 毫秒
1.
测定正常人及胃癌、慢性胃炎(浅表性或萎缩性)患者的血、唾液按刘氏及Shellenberger方法测定5—羟色胺(5-HT)与5—羟吲哚乙酸(5—HIAA)的含量,其正常参考值(x±S)分别为:血液0.151±0.04μg/ml与0.194±0.07μg/ml;唾液0.0745±0.05μg/ml与0.1096±0.05μg/ml.与正常值比较,患者血中5-HT及5-HIAA量均增高(p<0.01),而唾液中仅5-HIAA增高(p<0.05).经胃镜抽取胃液作5-HT及5-HIAA测定则胃癌患者胃液中5-HT含量(x±S)为0.2834士0.1436μg/ml,显著高于慢性胃炎患者胃液中的含量(p<0.05),但二者5-HIAA含量并无显著差异.  相似文献   

2.
通过大鼠脑落体损伤模型,采用荧光分光光度仪检测脑损伤后不同时间脑皮质和血清中5-羟色胺(5-HT)及其代谢产物5-羟吲哚醋酸(5-HIAA)含量。观察了用盐酸赛庚啶治疗后对5-HT和5-HIAA含量的影响。结果表明,脑皮质中5-HT和5-HIAA含量均升高。伤后48h,脑皮质中5-HT升高达高峰,为4.29±0.44μg,是对照值的4.8倍;5-HTAA于伤后24h达高峰,为5.48±0.41μg/g,是对照值的5.8倍。血清中5-HT变化不明显,5-HIAA亦明显升高。应用5-HT受体阻断剂赛庚啶治疗后,脑皮质中5-HT下降为1.32±0.09μg/g,5-HIAA含量下降为1.36±0.10μg/g;血清中5-HIAA含量也较明显降低为0.27±0.03μg/ml。  相似文献   

3.
目的:了解冠心病患者机体铁及铜的储存水平。方法:采用原子吸收光谱法对87例冠心病患者及35例健康体检者血浆及头发中铁、铜的含量进行测定。结果:冠心病患者血浆及头发中铁含量分别为(42.537 6±14.015 3 μmol/L、(20.976 2±6.757 8)μg/g,高于对照组(34.946 2±13.349 8)μmol/L、(12.713 2±6.115 1)μg/g;铜含量分别为(22.300 0±6.143 2)μmol/L、(10.546 2±1.849 5)μg/g,高于对照组(18.427 1±3.519 3)μmol/L、(7.784 1±1.873 6)μg/g,且差异均有统计学意义。结论:机体内铁与铜储存量增加可能是导致冠心病发生与发展的重要危险因素之一。  相似文献   

4.
目的 探讨颅脑创伤后强迫症患者血小板5-羟色胺(5-HT)水平.方法 测定符合诊断标准的27例颅脑创伤后强迫症患者(强迫症组)和27名颅脑创伤后非强迫症患者(对照组)的血小板5-HT水平.结果 颅脑创伤后强迫症组血小板5-HT水平[(139±172)μg/L]低于正常人组[(248±215)μg/L],差异具有显著性(P<0.05).结论 强迫症患者症状与5-HT浓度变化有相关性;单纯强迫思维者的5-HT浓度与单纯强迫动作患者的差异有显著性.  相似文献   

5.
肠易激综合征患者5—羟色胺含量的变化   总被引:10,自引:0,他引:10  
目的探讨5-羟色胺(5-HT)与肠易激综合征(irritablebowelsyndrome,IBS)发病的关系。方法应用荧光分光光度法测定IBS患者和对照组血清5HT、游离色氨酸(TP)和总TP含量。应用高效液相色谱仪测定乙状结肠粘膜中2-HT的含量。结果与对照组比较,腹泻型血清5-HT浓度(496.27±128.22ng/ml)显著升高(P<0.05)。两种类型乙状结肠粘膜5-HT含量(187767±655.00ng/g,1899.55±817.89ng/g)均显著高于对照组(1202.69±512.69ng/g)(P<0.05)。结论5-HT浓度升高可能与IBS发病有关;IBS患者5-HT含量升高与血清中总TP或游离TP浓度无关。  相似文献   

6.
慢性肝炎患者血浆vWF及其前肽与纤溶系统测定的临床意义   总被引:3,自引:0,他引:3  
韩纪举  魏然  李震  任道凌  吴亚平  王增贤  陈彬 《医学争鸣》2005,26(14):1289-1292
目的:探讨肝炎患者血浆vWFpp,vWF,tPA,PAI1及DDimer含量及临床意义.方法:利用ELISA法对肝炎组及对照组血浆vWFpp,vWF,tPA,PAI1及DDimer含量进行测定.结果:肝炎组血浆vWFpp(1.54±1.83)mg/L与对照组(0.43±0.09)mg/L有显著差异,P<0.01;vWF(60.30±99.81)mg/L与对照组(11.27±5.34)mg/L有显著差异(P<0.01);tPA(27.87±14.05)μg/L与对照组(16.70±7.13)μg/L有显著差异(P<0.01);PAI1(43.22±13.53)μg/L与对照组(63.37±6.63)μg/L有显著差异(P<0.01);DDimer(1.02±1.36)mg/L含量与对照组(0.60±0.67)mg/L有显著差异(P<0.01).vWFpp含量与vWF,DDime间具有显著的相关性(P<0.01);tPA含量与PAI1含量间亦具有显著的相关性(P<0.05).其他测定项间无显著的相关性.结论:慢性肝炎患者的血液vWFpp,vWF,D二聚体、tPA及PAI1水平能通过不同途径反映肝病时机体的凝血与纤溶系统的状态,且对于病情的判断和预后具有重要意义.  相似文献   

7.
本文报道用RIA测定112例各种肝病患者血清透明质酸(HA)的水平。结果如下:(1)随着肝病病程的进展,患者血清HA水平逐渐增高,即原发性肝癌(651.60±112.32μg/L)>肝硬化(437.64±123.68μg/L)>慢活肝(234.95±46.60μg/L)>慢迁肝和急性甲型肝炎(分别为83.18±39.38μg/L与82.08±30.23μg/L)>对照组(47.57±17.54μg/L)(P均<0.01)。(2)肝硬化患者,按Child分级,A级(321.14±37.17μg/L)转移性肝癌(235.30±46.98μg/L)(P<0.001),因此,作者认为测定血清HA水平可能是肝脏疾病一个很有价值的临床试验。  相似文献   

8.
In rabbit platelet rich plasma (PRP), 5-hydroxytraptamine (5-HT,0.03~3μmol/L) induced decrease in light transmission (DLT) dose-de pendently with centralization, as revealed by electron microscopy. However, 5-HT did not induced platelet aggregation and release reaction. 5-HT-induced DLT was inhibited by methysergide (0.3~30μmol/L), indomethacin (0.3~10μmol/L) and PGE_1 (0.01~0.3μmol/L) in a dose-dependent manner, but not EGTA(0.3~3mmol/L). Collagen(Coll), arachidonic acid (AA), adenosine diphosphate (ADP) and a stable thromboxane A2 analoge(STA_2) also induced DLT before aggregation by themselves, which was also inhibited by PGE_1, but not inhibited by EGTA except for Coll However,Coll-, AA-, STA_2-and ADP-induced DLT were reduced by pretreatment of PRP with 5-HT dose-depen-dently. The duration of DLT by Coll and AA were decreased from 151.4±5.93 sec and 15(?)38±0.60sec to 45.44±4.04 sec and 9.00±1.25 sec respectively ((?)±s(?) P<0.01), but not by ADP and STA_2, 3μmol/L of ADP-and 0.3μmol/L of STA_2-induced aggregation which was not accompanied with release reaction were enhanced by 5-HT pretreatment, but in those (Coil 5μg/ml, AA 100~200μmol/L and STA_2 1~3 μmol/L) with release reaction, the amount of adenosine triphosphate(ATP)were suppressed significantly (P<0.001) by 5-HT pretreatment without the effect on the magnitude of aggregation, The mobilization of cytosolic free calcium concentration ([Ca~(2+)]i) was observed after 5-HT treatment in single washed platelet, the results indicated that the basic level of [Ca~(2+)] i was 64.78±3.24nmol/L and this level was increased dose-dependently and significantly at 30 sec after administration of 5-HT and the time of peak value of [Ca~(2+)] i was at 90~100 sec.The similar time courses of suppression of ATP released during aggregation, in cases of Coll(5μg/ml), AA (200μmol/L) and STA_2(3μmol/L), by 5-HT were also found in the present experiment.  相似文献   

9.
本文观察24例急性心肌梗塞(AMI)患者血小板内外5-羟色胺(5-HT)类物质的变化和5-HT对血小板的聚集作用。结果:AMI组、心绞痛组、正常对照组的血小板5-HT(ng/10~9,x±SD)分别为533.88±1.75、496.44±1.49、707.78±1.57,血浆5-羟吲哚类物质(5-Hls)分别为124.67±1.35、98.01±1.26、87.44±1.20(ng/ml),表明AMI血小板5-HT均值降低、血浆5-HIs均值升高,与正  相似文献   

10.
目的 观察更年滋肾汤合玉女酥对雌性去势大鼠性激素E2、FSH、LH、及神经递质5-HT、5-HTAA的影响,探讨药食合用对围绝经期综合征的疗效及作用机制.方法 2015年10月—2016年4月,选取上海斯莱克实验动物中心健康、12周龄、雌性未孕SD大鼠60只,随机分为正常对照组、模型组、中药(更年滋肾汤)组、食疗(玉女酥)组、药食合用组,每组12只.给药(食)6周后,检测指标:下丘脑、垂体、子宫、胸腺、脾脏重量系数变化;血清中E2、FSH、LH的含量变化;下丘脑5-HT和5-HTAA的含量变化.结果 脏器重量系数:下丘脑、垂体各组间差异无统计学意义;子宫模型组(62.19±11.4)明显低于对照组(149.60±8.23),药食合用组(100.35±9.29)显著高于模型组;胸腺模型组(89.36±7.48)明显低于对照组(121.67±12.01),药食合用组(115.72±12.57)显著高于模型组;脾脏模型组(314.48±38.54)明显低于对照组(357.57±35.87),药食合用组(350.57±29.76)显著高于模型组,差异有统计学意义(P<0.05).血清性激素水平:E2含量,模型组(9.46±1.05)pg/mL明显低于对照组(13.97±1.14)pg/mL,中药组(12.94±1.73)pg/mL、食疗组(11.03±2.05)pg/mL、药食合用组(13.15±2.17)pg/mL均高于模型组(P<0.05);FSH含量,模型组(7.46±1.05)mIU/mL明显高于对照组(3.26±0.17)mIU/mL,中药组(4.34±0.73)mIU/mL和药食合用组(3.15±2.17)mIU/mL明显低于模型组(P<0.05,P<0.01);LH含量,模型组(13.07±1.05)mIU/mL明显高于对照组(7.74±1.12)mIU/mL,中药组(9.86±1.52)mIU/mL和药食合用组(7.83±1.07)mIU/mL明显低于模型组(P<0.05,P<0.01).5-HT水平,模型组(0.742±0.067)μg/g明显高于对照组(0.228±0.034)μg/g,中药组(0.357±0.043)μg/g、药食合用组(0.235±2.28)μg/g明显低于模型组(P<0.05,P<0.01);5-HTAA水平,模型组(3.986±0.520)μg/g明显高于对照组(1.109±0.230)μg/g,中药组(1.553±0.310)μg/g、药食合用组(1.211±0.270)μg/g明显低于模型组(P<0.05,P<0.01).结论 更年滋肾汤合玉女酥可通过影响雌性去势大鼠性激素及神经递质的含量,调节下丘脑-垂体-性腺轴功能,从而改善围绝经期综合征,药食合用可发挥更好的效果.  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.
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.  相似文献   

20.
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   

设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号