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左旋精氨酸

左旋精氨酸的相关文献在1993年到2019年内共计303篇,主要集中在内科学、药学、外科学 等领域,其中期刊论文297篇、会议论文4篇、专利文献26300篇;相关期刊201种,包括中国急救医学、中华危重病急救医学、心血管病学进展等; 相关会议4种,包括中国医师协会第三次全国新生儿科医师大会、中国医师协会心血管外科医师分会第八届年会、山东省第十一次胸心血管外科学学术会议等;左旋精氨酸的相关文献由783位作者贡献,包括王万铁、林丽娜、王卫等。

左旋精氨酸—发文量

期刊论文>

论文:297 占比:1.12%

会议论文>

论文:4 占比:0.02%

专利文献>

论文:26300 占比:98.87%

总计:26601篇

左旋精氨酸—发文趋势图

左旋精氨酸

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  • 王万铁
  • 林丽娜
  • 王卫
  • 徐正祄
  • 李东
  • 谢克俭
  • 张肇达
  • 张西洲
  • 潘雪蓉
  • 王伟
  • 期刊论文
  • 会议论文
  • 专利文献

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    • 李慧; 李佳; 汪洋; 李明贺
    • 摘要: 目的 探讨注射一氧化氮(NO)前体左旋精氨酸(L-Arg)对实验性牙移动大鼠牙周组织中内皮型一氧化氮合酶(eNOS)表达的影响.方法 取40只6周龄雄性的Wistar大鼠,随机分为实验组(20只)和对照组(20只).实验组和对照组建立牙移动动物模型.加力后实验组立即对大鼠行腹腔注射L-Arg(300 mg/kg在0.5 ml生理盐水中溶解),对照组注射等量生理盐水,1次/天.分别于加力注射后的1、3、5、7、14天处死两组动物各4只并制作以上颌第一磨牙为中心的、近远中方向的组织切片,行苏木精-伊红(HE)染色、eNOS免疫组织化学染色.结果 实验组与对照组牙周组织中均可见eNOS不同程度的阳性表达.eNOS表达强度灰度积分实验组在第3天-第14天时明显高于对照组(P<0.05).实验组和对照组均可观察到新生血管,实验组在第3天-第7天时表达明显高于对照组(P<0·05).实验组eNOS在破骨细胞及成骨细胞中表达明显.结论 L-Arg通过上调实验性牙移动牙周组织中eNOS的表达,促进eNOS参与牙周组织改建,从而在促进实验性牙移动的骨改建与血管改建方面发挥了作用.
    • 周方; 张逊; 卢喜科
    • 摘要: 目的 研究合并肺动脉高压患者行肺叶切除术后早期给予左旋精氨酸雾化吸入对肺换气功能的保护作用,以及对降低术后并发症发生率的预防作用.方法 将54例行肺叶切除术且术前合并肺动脉高压的患者随机分为两组:精氨酸组术后4h之内给予左旋精氨酸雾化吸入;对照组给予等量的生理盐水雾化吸入,术后其他治疗用药与精氨酸组相同.比较两组患者氧合指数、肺泡-动脉氧分压差,一氧化氮浓度及超声心动图、机械通气、滞留ICU、血流动力学紊乱及心律失常发生情况及术后住院日的差异.结果 精氨酸组氧合指数、血浆中一氧化氮含量高于对照组(P<0.001),肺泡-动脉氧分压差、超声心动图估测术后肺动脉压低于对照组(P<0.001),术后机械通气、滞留ICU、心律失常及血流动力学紊乱发生率均低于对照组(P<0.05).结论 术后早期雾化吸入左旋精氨酸对合并肺动脉高压的肺叶切除术患者有积极的肺保护作用,可降低此类患者围手术期并发症的发生率,并缩短住院时间.%Objective To study l-arginine aerosolized inhalation's protective effect on pulmonary ventilation of the pulmonary-arterial-hypertension patients during the early stage after pulmonary lobectomy,and its preventive effect on reducing postoperative complications.Methods 54 cases of pulmonary lobectomy patients with preoperative plumonary arterial hypertension were divided into two groups randomly-Group A was given L-arginine aerosolized inhalation within 4 h after the operation;Group B was given the same dose of aerosolized inhalation of physiological saline as contrast(other postoperative medication being the same with Group A).Compare the two groups of patients in terms of oxygenation index(PaO2/FiO2),alveolararterial oxygen difference(PA-aO2),nitric oxide(NO) concentration,ultrasonic cardiogram,mechanical ventilation duration,ICU duration,occurances of hemodvnamic disturbance and arrhythmia,and differences in postoperative hospital stay.Results The oxgenation index and the content of NO in plasma of Group A were higher than that of Group B(P <0.001);the alveolar-arterial oxygen difference and the postoperative pulmonary arterial pressure detected by UCG of Group A were lower than that of Group B(P < 0.001);the postoperative mechanical ventilation duration,ICU duration,occurances of hemodynamic disturbance and arrhythmia of Group A were all lower than that of Croup B(P < 0.05).Conclusion The postoperative l-arginine aerosolized inhalation during the early stage after pulmonary lobectomy has positive effect on the lung protection of the pulmonary-arterial-hypertension patients and it can reduce the perioperative complications and postoperative hospital stay of such patients.
    • 李慧; 李明贺; 汪洋; 黄蕾; 周雪纯
    • 摘要: Objective To investigate the expression of CD133 in periodontal tissues of experimental tooth movement rats by injecting NO precursor L-arginine (L-Arg).Methods 6 week old male Wistar rats were randomly divided into experimental group (20 rats) and control group (20 rats).The first molar of the right maxilla was pulled to move mesially with 50 g force to establish an animal model of tooth movement.The experimental group was injected intraperitoneally with L-Arg at a dose of 300 mg·kg-1 dissolved in 0.5 ml of normal saline, while the control group was injected with the same amount of normal saline.The experimental group and the control group were divided into the 1, 3, 5, 7, and 14-day groups, with 4 rats in each group.The rats were sacrificed at the prescribed time of the experiment, and the tissue sections of the maxillary first molar were made.The changes of periodontal tissues were observed by HE staining, the expression of CD133 in periodontal tissues was observed by CD133 immunohistochemical staining, and the image analysis and statistical data were obtained.Results The positive expression of CD133 in the periodontal tissues of both the experimental group and the control group was observed.Comparing the two groups at the same time point, the gray scale integral of CD133 positive reaction in experimental group was generally higher than that in control group.The intensity of CD133 expression in the experimental group was significantly higher than that in the control group at third day and fifth day (P<0.05).Both the experimental group and the control group were able to observe the expression of CD133 positive new blood vessels.The expression of CD133 positive new blood vessels in the experimental group on the third day was significantly higher than that of the control group (P<0.05).The expression of CD133 in osteoblasts and their precursors in the experimental group was obvious.Conclusion L-Arg promotes the involvement of CD133 positive cells in periodontal tissue remodeling in experimental tooth movement by up-regulating the expression of CD133 in periodontal tissue, thus playing a role in promoting vascular remodeling and bone remodeling in periodontal tissue of tooth movement.%目的 采用注射一氧化氮 (NO) 前体左旋精氨酸 (L-Arg), 研究实验性牙移动大鼠牙周组织中人类白细胞分化抗原133 (CD133) 的表达.方法 取雄性的6周龄Wistar大鼠40只, 随机分为实验组 (20只) 和对照组 (20只), 采用50g力拉右上颌第一磨牙向近中移动, 建立牙移动动物模型.实验组腹腔注射L-Arg, 给药剂量为300mg·kg-1溶解于0.5ml生理盐水, 对照组腹腔注射等量生理盐水.实验组和对照组大鼠再分别分为加力1、3、5、7、14d组, 每组4只, 分别在实验的规定时间处死大鼠并制作以右上颌第一磨牙为中心的、近远中方向的组织切片, 进行HE染色观察牙周组织变化、CD133免疫组织化学染色观察CD133在牙周组织中的表达, 图象分析并统计数据.结果实验组与对照组牙周组织中均可见CD133不同程度的阳性表达, 两组间相同时间点比较, 实验组CD133阳性反应灰度积分普遍高于对照组, 两组CD133阳性反应灰度积分在加力3、5天时比较差异有统计学意义 (P<0.05) .实验组和对照组均可观察到CD133表达阳性的新生血管, 实验组在加力3天时CD133阳性的新生血管表达高于对照组, 组间比较差异有统计学意义 (P<0.05) .实验组CD133在成骨细胞及其前体中表达明显.结论 L-Arg通过上调实验性牙移动牙周组织中CD133的表达, 促进CD133阳性细胞参与实验性牙移动的牙周组织改建, 从而在促进实验性牙移动牙周组织的血管改建与骨改建方面发挥了作用.
    • 刘慧芳; 李风森; 姜敏
    • 摘要: 目的 探讨不同程度脏腑虚损哮喘患者肺功能、血浆左旋精氨酸(L-Arg)及不对称二甲基精氨酸(ADMA)的水平.方法 将122例支气管哮喘急性发作期患者作为哮喘组,其中肺气虚者47例、肺脾气虚者39例、肺脾肾虚者36例,并将44例健康正常人作为正常对照组.采用高效液相联合质谱法检测所有研究对象血浆L-Arg及ADMA水平,并对哮喘患者进行肺功能测定.结果 哮喘组血浆L-Arg水平及L-Arg/ADMA比值均低于正常对照组(均P0.05).肺气虚组、肺脾气虚组、肺脾肾虚组患者1s用力呼气容积、1s用力呼气容积/用力肺活量的比值、呼气流量峰值均依次降低(均P<0.05).结论 哮喘患者机体均存在精氨酸代谢紊乱,这可能是引起哮喘患者线粒体呼吸链损伤的主要原因,但不同程度脏腑虚损哮喘患者精氨酸代谢水平无差异.哮喘患者肺功能变化与脏腑虚损发展趋势具有一致性.
    • 摘要: 精氨酸(又称左旋精氨酸)是一种存在于乳制品、鱼类、家禽和其他肉类中的氨基酸,它是构建蛋白质的基石。一些研究表明,精氨酸可能对健康有益,如缓解胸痛、改善勃起功能障碍和降低高血压。人体能够生成精氨酸,儿童的生长发育需要精氨酸。它的缺乏症是较为罕见的,大多数成年人能从饮食中获得足够的精氨酸。
    • 彭兴国; 王家良
    • 摘要: 目的探讨急性ST段抬高型心肌梗死应用尿激酶溶栓与左旋精氨酸联合治疗的效果。方法临床资料选取2016年4月-2017年4月在我院接受医治的124例急性STEMI患者,依照不同的治疗方案分为2组,各组62例,对照组行尿激酶溶栓治疗,观察组在其基础联合左旋精氨酸治疗,比较两组疗效及预后情况。结果观察组治疗总有效率93.55%比对照组79.03%高(P0.05);观察组治疗后cTnT(0.78±0.35)μg/L、CKMB(46.52±21.36)U/L、LDH(288.52±64.23)U/L均比对照组少,而SOD(168.30±52.74)U/L比对照组多(P<0.05);观察组经随访心血管不良事件发生率14.52%比对照组37.10%低(P<0.05)。结论急性STEMI采用尿激酶溶栓与左旋精氨酸联合治疗的疗效确切,能有效再通冠脉,避免心肌再灌注后损伤,保护心肌,降低心血管不良事件,促进预后。
    • 罗礼云; 李玥; 彭湖; 危小良; 林岫芳
    • 摘要: Objective To investigate the effect of angiogenesis in peri-infarct area of the L-Arginine therapy for acute myocardial infarction rats and its cardioprotective activity.Methods The AMI rat model was established by ligation of the left anterior descending of coronary arteries.Thirty male Sprague-Dawtey rats were randomly divided into three groups:sham group,normal saline group (control group) and L-Arginine group.Four weeks after ligation and treatment,cardiac function,scar area,plasma concentration of BNP,angiogenesis and arteriogenesis,myocardial collagen Ⅰ protein expression were studied.Echocardiography,Masson staining,enzyme-linked immunosorbent assay,immunehistochemistry,western blot were performed.Results Four weeks after ligation,compared with the control group,LVEF(48.20% vs 35.20%,P<0.01),LVFS(24.10% vs 17.38%,P< 0.01) were higher in L-Arginine group,while LVEDD(7.82 mm vs 9.06 mm,P<0.01) and LVESD(6.29 mm vs 7.32 mm,P<0.01)decreased obviously.Average scar percentage and plasma concentration of BNP were lower in L-Arginine group(872.33 pg/ml vs 1203 pg/ml,P<0.01).The mean CD31-positive microvessels(101.4/mm2 vs 34.8/mm2,P<0.01) and α-SMA positive microvessels of the peri-infarct area (20.2/mm2 vs 7.2/mm2,P<0.01) were higher in L-Arginine group,while collagen Ⅰ protein content was decreased in this group (P<0.01).Conclusion L-Arginine intervention improves cardiac function and reduces infarction size in AMI rats,the possible mechanism is related to dual function of promoting angiogenesis and arteriogenesis,reducing collagen Ⅰ expression is also one of the important mechanisms.%目的 观察左旋精氨酸干预对急性心肌梗死(AMI)大鼠心肌梗死边缘区血管新生的影响及心肌保护作用.方法 冠状动脉结扎法建立大鼠AMI模型,30只SD雄性大鼠被随机分为3组:假手术组、生理盐水对照组及左旋精氨酸干预组.在冠状动脉结扎后4周,超声心动图测量大鼠心脏左室舒张末内径(LVEDD)、左室收缩末内径(LVESD)、左室射血分数(LVEF)、左室短缩分数(LVFS),Masson染色测定梗死面积,ELISA法检测各组大鼠血浆脑钠尿肽(BNP)水平;采用免疫组织化学技术检测大鼠心肌梗死边缘区CD31阳性的内皮细胞数量及α-SMA阳性平滑肌细胞数量,以评估新生血管情况,Western blot检测梗死边缘区内皮型一氧化氮合成酶(eNOS)及胶原-Ⅰ蛋白含量.结果 冠状动脉结扎术后4周,与生理盐水对照组相比,左旋精氨酸干预组LVEF(48.20%比35.20%,P<0.01)、LVFS(24.10%比17.38%,P<0.01)明显升高,而LVEDD(7.82 mm比9.06 mm,P<0.01)及LVESD(6.29 mm比7.32 mm,P<0.01)降低;梗死面积明显缩小(25.11%比35.02%,P<0.01);血浆BNP水平亦较低(872.33 pg/ml比1203 pg/ml,P<0.01);而梗死边缘区CD31阳性的内皮细胞高于生理盐水对照组(101.4/mm2比34.8/mm2,P<0.01),α-SMA阳性平滑肌细胞密度亦高于对照组(20.2/mm2比7.2/mm2,P<0.01);梗死周围区eNOS蛋白水平高于对照组,而胶原-Ⅰ蛋白含量则低于对照组(P<0.01).结论 左旋精氨酸干预可促进AMI大鼠梗死心肌边缘区毛细血管及小动脉新生,减少胶原-1蛋白含量,促进eNOS的表达,并具有改善左心收缩功能、降低血浆BNP水平、缩小梗死面积的心肌保护作用.
    • 薛加丽; 曾萍
    • 摘要: 目的:研究联用硫酸镁和左旋精氨酸治疗妊娠期高血压的临床疗效及安全性.方法:选取四川省攀枝花市仁和区人民医院在2014年8月至2016年4月期间接诊的128例妊娠期高血压患者作为研究对象.将其随机分为参照组和研究组.为参照组患者单用硫酸镁进行治疗,为研究组患者联用硫酸镁和左旋精氨酸进行治疗.对比两组患者的临床疗效及不良反应的发生情况.结果:两组患者治疗的总有效率相比,差异无统计学意义(P>0.05).研究组患者不良反应的发生率低于参照组患者,差异有统计学意义(P<0.05).结论:联用硫酸镁和左旋精氨酸治疗妊娠期高血压可取得显著的临床疗效,且用药的安全性高.
    • 李树斌; 李俊杰; 李斌
    • 摘要: 目的 探讨左旋精氨酸在成人房间隔缺损合并肺动脉高压术中的肺保护作用.方法 随机选取患者52例,观察组26例,对照组26例.观察组在体外循环预充液中加入左旋精氨酸200 mg·kg-1,对照组则加入等量生理盐水.分别于手术的不同时间点进行数据监测:①两组体外循环时间及辅助通气时间;②肺动脉平均压监测(PAMP);③计算氧合指数;④血浆超氧化物歧化酶(SOD)浓度测定.用SPSS 13.0统计软件包进行统计处理.结果 两组患者体外循环时间差异无统计学意义(P>0.05),辅助通气时间差异有统计学意义(P0.05).But observation group was better than control group in ventilation time(P<0.05).There was a significant difference in the levels of PAMP, oxygenation index, and SOD at the time of 5 minutes, 4 hours and 24 hours after aortic opening(P<0.05).Conclusion Application of L-arginine in adult patients with atrial septal defect complicated with pulmonary hypertension could protect the lung tissue, relieve ischemia reperfusion injury and improve oxygenation of the lung.
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