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1.
1,6—二磷酸果糖抗失血性休克实验研究   总被引:2,自引:0,他引:2  
本实验观察了FDP抗失血性休克作用。3组失血性休克大鼠分别接受5%FDP溶液(A组)、5%葡萄糖溶液(B组)和生理盐水(C组)静注。给药60min后,A组MAP为10.4±2.1kPa,与B、C组7.9±2.4和7.7±2.6kPa间均有差异(P<0.01);A组动物存活率75%,而B、C组分别为25%和15%(P<0.01);A组动脉血pH和PaO2分别为7.24±0.14和13.46±1.22kPa,与B、C组7.14±0.14和10.29±3.84kPa与7.02±0.10和7.25±2.12kPa间有显著差异(P<0.01);A组回输血液再灌流后血浆SOD和MDA分别为1200±126Uml-1和0.47±0.25nmolml-1,同B、C组1081±119Uml-1和0.91±0.29nmol-1与835±9Uml-1和1.13±0.16nmol-1间均有显著差异(P<0.01)。结果表明FDP保护组织损伤而产生抗休克作用。  相似文献   

2.
长程吸入一氧化氮对大鼠缺氧性肺动脉高压的影响   总被引:6,自引:0,他引:6  
目的探讨长程吸入一氧化氮(NO)对慢性缺氧性肺动脉高压的阻抑效应及其机制。方法将32只雄性Wistar大鼠分为(1)正常对照组;(2)缺氧组;每天缺氧12小时,共3周;(3)吸入NO组:缺氧同时每天吸入20ppmNO12小时,共3周。观察肺动脉压力、右心室肥厚、血浆内皮素-1(ET-1)和环磷酸鸟苷(cGMP)变化以及肺组织病理学改变。结果(1)缺氧组大鼠肺动脉压力明显升高(4.3±0.9kPa),右心室肥厚显著(P均<0.001),吸入NO组肺动脉压力降低(3.0±0.4kPa),右心室肥厚减轻;(2)缺氧组腺泡内肌型肺动脉增多,无肌肺动脉明显减少,与对照组相比,差异显著(P<0.01),吸入NO组明显改善三型血管比例失调。(3)缺氧组血浆ET-1含量明显升高,(197±15pg/ml),cGMP水平显著降低。吸入NO组ET-1含量降低(163±14pg/ml);cGMP含量升高。结论长程吸入20ppmNO能阻抑慢性缺氧性肺动脉压力升高,且无明显毒副作用。  相似文献   

3.
用火箭电泳法测定了63例肾小球疾病患儿血清纤维结合蛋白(FN)的含量。31例急性肾炎患儿急性期血清FN平均为116.3±105.0mg/L,较对照组(167.1±40.6mg/L)明显减低(P<0.05),但其波动范围较大。13例激素敏感性肾病综合征患儿血清FN为304.4±93.4mg/L,较对照组显著升高(P<0.001),6例激素耐药的肾病患儿,血清FN无明显改变。9例肾病患儿激素治疗前血清PN为268.8±72.5mg/L,治疗后4~6周,FN升高到361.8±88.3mg/L(P<0.05)。13例紫癜性肾炎患儿,血清FN为77.2±39.9mg/L,较对照组显著减低(P<0.01)。  相似文献   

4.
本文测定23例慢性肾衰血透患者血浆LPO、SOD、RBC-LPO及NK细胞活性。结果表明透前血浆LPO、SOD、RBC-LPO及NK细胞活性分别为10.85±2.11nmol/ml、40.24±8.0u/ml、23.91±5.49nmol/gHb和29.92±6.08%(正常对照分别为6.53±0.65nmol/ml、79.25±7.61u/ml、16.33±3.61nmol/gHb和51.21±8.33%)。透后血浆LPO、SOD分别为9.38±1.54nmol/ml和51.07+9.16u/ml,结果均与正常对照有显著差异;且透前、透后血浆LPO、SOD也有显著差异(P<0.01)。它们之间的相关分析表明血浆LPO与BUN、Cr呈正相关(r=0.3251P<0.05、r=0.4191P<0.01),与SOD呈负相关(r=-0.5119P<0.01);血浆SOD与BUN、Cr呈负相关(r=-0.5353、r=-0.4761P<0.01),NK细胞活性与RBC-LPO呈负相关(r=-0.4132P<0.05),与血浆LPO、SOD、BUN、Cr无相关。上述表明慢性肾衰血透患者有脂质过氧化损伤,SOD酶活性下  相似文献   

5.
目的:观察急性实验性弥散性血管内凝血(DIC)家兔血清NO水平和血管紧张素转换酶(ACE)活性的变化及其关系。方法:用4%兔脑粉(组织凝血活酶)浸液(2ml/kg+生理盐水稀释至30ml)静脉注射复制家兔急性实验性DIC动物模型,用硝酸还原酶比色法测定NO含量,紫外分光光度法测定ACE活性。结果:家兔血清NO在注射浸液开始后15min下降,30、60min升高,与注射前比较均无显著性差异(P>0.05)。15、30min家兔血清ACE活性变化无显著性(P>0.05),但60min明显下降(P<0.01)。DIC组血清NO水平与血清ACE活性呈显著负相关(γ=-0.841,P<0.01)。结论:在组织凝血活酶所致的急性DIC发病机制中,血液NO可能不起重要作用,其变化与血清ACE活性有关  相似文献   

6.
对30例慢性肺心病缓解期患者及50例正常人采用RIA法测定了血清的β_2-微球蛋白(β_2-MG),结果显示:慢性肺心病缓解期患者血清β_2-MG值为3.5±0.58mg/L,较正常人血清β_2-MG值3.24±0.45mg/L为高(t检验,P<0.01),肺心病缓解期患者中有14例(A组)血清β_2-MG值为4.29±0.38mg/L,超过正常上限,且血BUN6.8mmol/L,Cr132μmol/L,Ccr64ml/min;另16例(B组)血清β_2-MG值(3.12±0.34mg/L)正常,血BUN5.4mmol/L,Cr114μmol/L,Ccr102ml/min,两组β_2-MG及Ccr比较有显著差异(t检验,P<0.01)。提示血清β_2-MG测定在慢性肺心病缓解期患者中较BUN、Cr能更早地发现肾功能减退。  相似文献   

7.
反义寡脱氧核苷酸对人肝癌裸鼠模型生长及转移的影响   总被引:3,自引:0,他引:3  
目的 观察反义H-ras寡脱氧核苷酸(ODN)对高表达蛋白p21H- ras的人肝癌高转移裸鼠模型LCI-D20细胞生长、凋亡及转移潜能的影响。方法原代培养LCI-D20细胞,经10μmol/L浓度反义ODN处理后,以1.5×10细胞数分别接种于14只裸鼠皮下缝制皮囊内:6只接种反义H-rasODN处理细胞,4只接种H-ras非特异性反义ODN处理细胞,余4只接种未作处理的对照细胞。结果反义H-ras对LCI-D20细胞增殖具有显著抑制作用(t=31.529,P<0.01),反义ODN处理细胞,S期比率(36.0±1.4)显著低于对照组(58.5±0.9,t=13.519,P<0.01),而G1/G0期比率(56.7%±1.1%)高于对照组(37.4±0.7,t=14.802,P<0.01);反义H-rasODN处理细胞的凋亡发生率(34.0%±4.5%)显著高于对照组(2.5%±1.2%,t=13.434,P<0.01);反义H-ras处理对LCI-D20细胞在接种动物体内的生长具有显著延迟抑制作用(t=3.509,t=3.452,P<0.01);接种动物的肺转移率,反义H-rasODN处理组显著低于对照组。  相似文献   

8.
目的观察一氧化氮底物左旋精氨酸(L一arg)延长吸入一氧化氮(NO)选择性降低肺动脉高压过程中的作用。方法8只猪麻醉后制成急性缺氧性肺动脉高压模型,在 Swan-Ganz导管和动脉导管监测下吸入 NO(12— 15ppm)的过程中静脉注入 L- arg(共 10g),观察停用 NO后体循环和肺循环血流动力学的变化情况。结果单纯吸入 NO能选择性降低急性缺氧性肺动脉高压,肺动脉压力从 4 2± 0 4kPa降至 2. 5± 0 .5kPa(1kPa= 7.5mmHg, P< 0.01),肺血管阻力从 56±25kPa·s·L-1降至31±13kPa·s·L-1(P<0.01),但持续时间短;NO吸入加静脉注射L-arg没有使肺动脉压进一步下降,但能显著延长吸入NO对肺动脉压的降压时间(20倍),对体循环血压则无影响。结论提供内源性NO的底物L-arg能延长NO的降压作用,提示急性缺氧时NO的生成可能有相对不足。  相似文献   

9.
在链脲佐菌素所致糖尿病大鼠模型(链脲佐菌素70mg/kg,i.p)中观察了大鼠心肌组织肾素-血管紧张素系统(RAS)的变化以及牛磺酸的治疗作用(2%牛磺酸饮水给药4周)。结果表明:糖尿病大鼠较正常大鼠心肌组织RA,ACE活性显著升高(P<0.01),AT-Ⅰ和ATⅡ含量均明显增加(P<0.01),牛磺酸治疗组大鼠较未治疗组大鼠上述各项指标均有不同程度的降低,其中ACE活性和AT-Ⅰ、AT-Ⅱ含量的改变差异显著(P<0.05,P<0.01),RA改变差异不显著(P>0.05)。提示:心肌组织RAS功能亢进参与了糖尿病性心肌病发病过程。牛磺酸抑制心肌组织RAS功能对减轻糖尿病心肌损害具有一定的临床治疗意义。  相似文献   

10.
观察L-精氨酸对大鼠常压低氧性肺动脉高压的预防和治疗作用。结果表明,L-精氨酸(200mg/kg·d)可明显预防低氧所致的肺动脉高压和右心室肥厚,L-精氨酸预防组平均肺动脉压(mPAP)(2.61±0.09kPa)明显低于低氧处理组(3.58±0.06kPa),两组间差异有显著性(P<0.05);右心室/(左心室+室间隔)重量比值(0.26±0.01)明显低于低氧组(0.34±0.01),两组间差异有显著性(P<0.05)。大鼠形成肺动脉高压后,经静脉灌注300mg/kg的L-精氨酸可明显降低其mPAP,提示L-精氨酸对低氧性肺动脉高压可能具有一定的防治作用。  相似文献   

11.
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   

12.
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   

13.
FOR anesthesiologis s ,treatingpostoperativepainhas alwaysbeen a problem.Althoughopioidshave been provedtobe effective,theirsideeffectscouldnotbeignored.With thedevelopmentofscienceand pharmacology,many drugs with aspectsof satisfactoryanalgesicefficacyand couldbe welltoleratedby patientshave been developed.And lornoxicamisone of them, which isa non-steroidalanti-inflammatorydrug (NSAID ), with analgesic, anti-infl-ammatory,andantipyreticproperties.Itseliminationhalf-time(3 to 5 hours) isle…  相似文献   

14.
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   

15.
Objective: To observe the therapeutic effects in acupunture treatment of primary dysmenorrhea combined with spinal Tui Na, and study its mechanism. Methods: Thirty cases of the treatment group were treated by acupuncture combined with spinal Tui Na, and thirty cases in the control group were treated by routine acupuncture. Results: The total effective rate was 93.3% in the treatment group, and 73.3% in the control group, with a significant difference between the two groups (P<0.05). Conclusions: Acupuncture combined with spinal Tui Na has good prospects for treatment of primary dysmenorrhea.  相似文献   

16.
In treating chronic nephropathy,Luo Lingjie,a chief physician,pays attention to regulating the balance between yin and yang,treating infection if present,and removing pathogenic factors.He prescribes gentle drugs and uses carefully strongly warming-tonifying ones,emphasizes the importance of persuading the patient to persist in treatment with medication and nurse one's health for recuperation,and is good at combined use of TCM and western medicine therapy and brings the merits of various therapies into full play,with obvious theraoeutic effects.  相似文献   

17.
Dr.Zhang Ren,the chief physician,is the chairman of Shanghai Acupuncture and Moxibustion Association.Having been engaged in medicine for about 40 years,he is experienced in treating various intractable diseases.In his long years of clinical practice,he advocates taking the TCM differentiation as the basis to seek for the acupuncture method for treatment of modern intractable diseases.The author of this essay had the fortune to follow Dr.Zhang in study.The following is a summary of Dr.Zhang's experience in the acupuncture treatment for different intractable diseases with the same therapeutic principle.  相似文献   

18.
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   

19.
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.  相似文献   

20.
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