三康胶囊对高原人体运动自由基代谢和血乳酸的影响

目的:探讨三康胶囊对高原人体运动自由基代谢和血乳酸(BLA)的影响。方法:对进驻海拔3 700 m高原1年的10名健康青年在服药前和服药第15 d,分别采用自行车功量计进行渐增负荷运动,测定血清中超氧化物歧化酶(SOD)活性和丙二醛(MDA)、BLA含量。结果:服药后较服药前运动后SOD[(121.2±16.9)Vs(99.6±14.0)]增高,而MDA[(3.97±0.17)Vs(4.31±0.18)]和BLA[(5.11±0.31)Vs(6.22±0.46)]降低,有非常显著差异(P<0.01)。结论:三康胶囊能明显抑制高原运动造成的自由基损伤,具有提高运动能力,延缓运动性疲劳发生的作用,是一种很有前景的抗缺氧、抗疲劳、抗幅射纯中药制剂。     

三种药物对人在高原运动后血乳酸、肌红蛋白及血氨含量的影响

目的探讨三种药物在高原人体运动中的作用.方法对进驻海拔4100m高原20d的40名健康青年随机分为红景天组、乙酰唑胺组、西氏胶囊组和食用淀粉组,每组10人.在安静时,服药前踏阶运动后及服药后踏阶运动后分别检测血乳酸(BLA)、肌红蛋白(Mb)及血氨(Ammo)含量.结果4组青年安静时及服药前踏阶运动后BLA、Mb及Ammo组间比较差异均无显著性意义(P＞0.05);4组服药前踏阶运动后与安静时比较BLA、Mb、Ammo均增高(P＜0.01);服药后踏阶运动后与安静时比较BLA、Ammo增高(P＜0.01),Mb在食用淀粉组、乙酰唑胺组和西氏胶囊组增高,差异有显著性意义(P＜0.01或P＜0.05),红景天组变化无统计学意义(P＞0.05).服药6d踏阶运动后红景天组、乙酰唑胺组、西氏胶囊组与食用淀粉组比较BLA、Ammo降低(P＜0.05或P＜0.01),Mb在红景天组和乙酰唑胺组降低有显著性意义(P＜0.01或P＜0.05),西氏胶囊组变化无显著性意义(P＞0.05);红景天组与乙酰唑胺组、西氏胶囊组比较BLA、Ammo及Mb降低有显著性意义(P＜0.01或P＜0.05).乙酰唑胺组与西氏胶囊组比较三项指标变化均无显著性意义(P＞0.05).服药后较服药前红景天组BLA、Ammo及Mb均降低(P＜0.01);乙酰唑胺组、西氏胶囊组Ammo和BLA降低(P＜0.01或P＜0.05),Mb变化无显著性意义(P＞0.05).结论红景天、乙酰唑胺及西氏胶囊对提高高原人体运动能力,增强能量代谢和消除疲劳具有良好的作用,以红景天效果更明显.     

乙酰唑胺和高原维康片对高原人体运动血乳酸及血氨的影响

目的　探讨乙酰唑胺、高原维康片和红牛饮料对高原人体运动时血乳酸 (BLA)及血氨 (Ammo)的影响。方法　对进驻海拔 3 70 0m高原半年的 40名健康青年随机分为乙酰唑胺组、高原维康片组、红牛饮料组及对照组 ,每组 10名。在安静时、服药前、服药第 10天及停药第 10天分别采用功率自行车进行渐增负荷运动至力竭 ,测定其血清中BLA和Ammo含量。结果　 ( 1)高原力竭运动使BLA和Ammo增加 (P <0 .0 1) ;( 2 )给予乙酰唑胺、高原维康片和红牛饮料 10d即可使BLA ,Ammo降低 (P <0 .0 1或P <0 .0 5 )。结论　乙酰唑胺、高原维康片和红牛饮料均能增强高原机体能量代谢 ,提高机体的有氧运动能力 ,具有良好的抗疲劳作用。且乙酰唑胺效果更明显     

酪氨酸和乙酰唑胺对海拔3700m高原人体运动后血乳酸、肌红蛋白及血氨的影响

目的 :探讨酪氨酸对高原人体运动时血乳酸 (BLA)、肌红蛋白 (Mb)及血氨(Ammo)的影响 ;方法 :对进驻海拔 3 70 0m高原半年的 3 0名健康青年随机分为酪氨酸组、乙酰唑胺组及对照组 ,每组 1 0人 ,在安静时、服药前、服药第 1 0天、第 1 5天及停药第 1 0天、第 2 0天分别采用功量自行车进行渐增负荷运动至力竭 ,测定其血清中BLA、Mb和Ammo含量 ;结果 :①高原力竭运动使BLA、Mb和Ammo增加 (P <0 .0 1 ) ;②给予酪氨酸、乙酰唑胺 1 0天即可使BLA、Mb和Ammo降低 (P <0 .0 1或P <0 .0 5) ;③乙酰唑胺停药 1 0天药效消失 ,酪氨酸停药 2 0天药效消失 ;结论 :酪氨酸、乙酰唑胺能增强高原机体能量代谢 ,延缓运动性疲劳发生 ,且酪氨酸效果更明显     

三康胶囊对高原人体运动一氧化氮及其合酶的影响

目的:探讨三康胶囊对高原人体运动一氧化氮(NO)及其合酶(NOS)的影响。方法:对进驻海拔3 700 m高原1年的10名健康青年在服药前和服药第15天分别采用功率自行车进行渐增负荷运动,测定血清NO和NOS的含量。结果:服药前运动后NO及NOS分别为(77.10±8.11)μmol/L及(56.29±6.28)U/m l,服药后运动后NO及NOS分别为(101.02±6.49)μmol/L及(71.40±7.23)U/m l,两组间具有非常显著差异(P<0.01)。结论:三康胶囊能增强高原运动时NOS活性,NO合成增加,降低氧耗,提高机体免疫力。     

海拔5380m富氧室对人体运动血乳酸、血氨及肌红蛋白的影响

目的　探讨在高原建立富氧室对机体运动后血乳酸(BLA)、肌红蛋白(Mb)、血氨(Ammo)的影响。方法　对海拔5380m高原的10名健康青年在进入富氧室前、富氧12h后分别进行踏阶运动,检测血　BLA,Ammo,Mb含量。结果　富氧运动较未富氧运动Mb增高显著(P<0.05),BLA,Ammo增高,有非常显著性差异(P<0.01);结论富氧室能增强高原机体能量代谢,是高原部队提高机体运动能力和抗疲劳的理想措施。     

L-精氨酸治疗高原肺水肿病人肌红蛋白、乳酸及血氨的变化

目的　探讨左旋精氨酸 (L Arg)对高原肺水肿病人肌红蛋白 (MB)、血乳酸 (BLA)、血氨 (Ammo)的影响。方法　在海拔 3 70 0m采用氧气驱动雾化吸入L Arg治疗高原肺水肿 9例 (L Arg组 ) ,并与吸入低浓度一氧化氮 (NO)混合气治疗 8例高原肺水肿 (NO组 )作对照 ,分别检测血中Mb ,BLA及Ammo含量。结果　NO组和L Arg组治疗前较治愈后Mb ,BLA ,Ammo均增高非常显著 (P <0 .0 1)。吸入NO组和L Arg组比较 ,Mb ,BLA ,Ammo无统计学差异 (P >0 .0 5 )。结论　L Arg治疗高原肺水肿有效 ,使乳酸性和非乳酸性氧债均降低 ,且经济简便 ,易于推广应用     

三康胶囊对高原人体运动自由基代谢和血乳酸的影响

目的：探讨三康胶囊对高原人体运动自由基代谢和血乳酸（BLA）的影响。方法：对进驻海拔3700m高原1年的10名健康青年在服药前和服药第15天分别采用功率自行车进行渐增负荷运动，测定血清中超氧化物歧化酶（SOD）、丙二醛（MDA）和BLA含量。结果：服药后较服药前运动后SOD增高，MDA、BLA降低，有非常显著差异（P〈0．01）。结论：三康胶囊能明显抑制高原运动造成的自由基损伤，具有提高运动能力，延缓运动性疲劳发生的作用，是一种很有前景的抗缺氧、抗疲劳、抗幅射纯中药制剂。     

吸入液态氧对海拔3 700m高原人体运动血乳酸及血氨的影响

目的观察吸入液氧对高原人体力竭运动血乳酸及血氨的影响.方法对进驻海拔3 700m高原3个月的10名健康青年在吸入液氧(吸氧组,4L/min)和不吸液氧(对照组)的条件下,采用功率自行车进行递增负荷运动,并在安静时、运动后测定血中血乳酸(BLA)、血氨(Ammo)的变化.结果与安静时比较,对照组和吸氧组运动后BLA、Ammo均增高显著(P<0.05或P<0.01);运动后吸氧组较对照组BLA、Ammo降低显著(P<0.05或P<0.01).结论吸入液氧能延长供氧时间,是提高高原人体运动能力和抗疲劳的理想措施.     

银杏叶片对高原人体运动血乳酸及血氨的影响

目的：探讨银杏叶片、酪氨酸冲剂和红景天对高原人体力竭运动血乳酸（BLA）及血氨（Ammo）的影响。方法：对进驻海拔3700m高原半年的30名健康青年随机分为银杏叶片组、红景天组和酪氨酸组,每组10人。在服药前、服药第15天分别采用功率自行车进行渐增负荷运动至力竭,测定血清中BLA、Ammo含量。结果：3组青年运动后较安静时BLA、Ammo均增高,有非常显著性差别（P〈0．01）。服药后较服药前BLA、Ammo降低,有非常显著性差别（P〈0．01）。结论：银杏叶片、酪氨酸冲剂和红景天均能增强高原机律能量代谢,提高机林的有氧运动能力,加速运动性疲劳的恢复。     

Knee injury and Osteoarthritis Outcome Score (KOOS) - validation of a Swedish version

The Knee injury and Osteoarthritis Outcome Score (KOOS) is a self-administered instrument measuring outcome after knee injury at impairment, disability, and handicap level in five subscales. Reliability, validity, and responsiveness of a Swedish version was assessed in 142 patients who underwent arthroscopy because of injury to the menisci, anterior cruciate ligament, or cartilage of the knee. The clinimetric properties were found to be good and comparable to the American version of the KOOS. Comparison to the Short Form-36 and the Lysholm knee scoring scale revealed expected correlations and construct validity. Item by item, symptoms and functional limitations were compared between diagnostic groups. High responsiveness was found three months after arthroscopic partial meniscectomy for all subscales but Activities of Daily Living.     

Endovascular management of carotid-cavernous fistulas

Objective To investigate endovascular treatment of traumatic direct carotid-cavernous fistulas （CCF） and their complications such as pseudoaneurysms. Methods： Over a five-year period, 22 patients with traumatic direct CCFs were treated endovascularly in our institution. Thirteen patients were treated once with the result of CCF occluded, 8 twice and 1 three times. Treatment modalities included balloon occlusion of the CCF, sacrifice of the ipsilateral internal carotid artery with detachable balloon, coll embolization of the cavernous sinus and secondary pseudoaneurysms, and covered-stem management of the pseudoaneurysms. Results All the direct CCFs were successfully managed endovascularly. Four patients developed a pseudoaneurysm after the occlusion of the CCF with an incidence of pseudoaneurysm formation of 18.2% （4/22）. A total number of 8 patients experienced permanent occlusion of the ICA with a rate of ICA occlusion reaching 36.4% （8/22）. Followed up through telephone consultation from 6 months to 5 years, all did well with no recurrence of CCF symptoms and signs. Conclusion Traumatic direct CCFs can be successfully managed with endovascular means. The pseudoaneurysms secondary to the occlusion of the CCFs can be occluded with stent-assisted coiling and implantation of covered stents.     

The role of interventional radiology in trauma

Introduction Interventional Radiology has evolved into a specialty having enormous input into the care of the traumatized patient.In all hospitals,regardless of size,the Interventional Radiologist must consider their relationships with the trauma service in order to     

The acutely limping child

Acute limping may be the result of multiple pathologies in children. The differential diagnosis varies based on the age of the child. Irrespective of age, the initial imaging work-up includes AP and frog leg radiographs of the pelvis and ultrasound; MRI may sometimes be helpful. In children less than 3 years, infections and trauma are most frequent. MRI is the imaging modality of choice when osteomyelitis is clinically suspected. Between the ages of 3 and 10 years, transient synovitis of the hip and Legg-Calvé-Perthes disease are main considerations but infection, inflammation and focal bony lesions are also considered. In children over 10 years, slipped capital femoral epiphysis also is considered.     

Diagnóstico ecográfico del neumotórax

The ultrasonographic diagnosis of pneumothorax is based on the analysis of artifacts. It is possible to confirm or rule out pneumothorax by combining the following signs: lung sliding, the A and B lines, and the lung point. One fundamental advantage of lung ultrasonography is its easy access in any critical situation, especially in patients in the intensive care unit. For this reason, chest ultrasonography can be used as an alternative to plain-film X-rays and computed tomography in critical patients and in patients with normal plain films in whom pneumothorax is strongly suspected, as well as to evaluate the extent of the pneumothorax and monitor its evolution.     

Carbohydrate Supplementation during Exercise: Does It Help? How Much is Too Much?

KEY POINTS· Carbohydrate intake during exercise can delay the onset of fatigue and improve performance of prolonged exercise as well as exercise of shorter duration and greater intensity (e.g., continuous exercise lasting about 1h and intermittent high-intensity exercise), but the mechanisms by which performance is improved are different.     

人体中的镭-226、镭-228、钋-210、铅-210

本文报道了广东阳江高本底地区6名、对照地区8名人尸体的骨²²⁶Ra、²²⁶Ra的浓度以及部分居民内脏器官中。²¹⁰Po、²¹⁰Pb的浓度。结果轰明阳江高本底地区和对照地区居民骨镭-226、镭-228的浓度分别为29.9pCi/kg, 26.9pCi/kgl 8.7pCi/kg, 8.2pCi/kg.由此估算出阳江高本底地区屠民骨中²²⁶Ra、²²⁸Ra的负薄璧及对骨衬、骨髓所产生的剂量当量分别为对照地区民民的3.4倍, 3.3倍。两地区居民内脏器官中^{210Po、210Pb的测定分析铡数较少但仍看出, 高本底地区均明显高于对照地区.}     

磁共振DWI和动态增强鉴别颅底脊索瘤和侵袭性垂体瘤的应用

目的 探讨磁共振扩散加权成像(DWI)和动态增强在颅底脊索瘤和侵袭性垂体瘤(IPA)鉴别诊断中的应用价值.方法 搜集经手术病理证实且影像学有鞍区破坏的颅底脊索瘤患者15例、向鼻咽部侵犯的IPA患者20例.测量二者的表观扩散系数(ADC)值,绘制受试者工作特征曲线(ROC),分析动态增强曲线的类型,统计达峰时间(TTP)、增强峰值(EP)和最大对比增强率(MCER),分析各个参数在鉴别诊断中的价值.结果 颅底脊索瘤的ADC值为(1.274±0.07)×10-3mm2/s,高于IPA ADC值(0.672±0.03) ×10-3 mm2/s(P ＜0.001),ADC阈值为0.964×10-3mm2/s时,ROC曲线下面积为0.997,敏感度为93.3％,特异度为100％.颅底脊索瘤时间-信号强度曲线(TIC)Ⅰ型14例,TICⅢ型1例,此例TICⅢ型者TTP约40 s;IPA TIC Ⅰ型7例,TICⅢ型13例.颅底脊索瘤和IPA的EP、MCER差异均有统计学意义(P ＜0.001).结论 ADC值和TIC的类型及其相关参数(EP,MCER)有助于颅底脊索瘤和IPA之间的鉴别.