高血压并脑梗死患者肿瘤坏死因子水平变化与胰岛素抵抗的关系

目的 :为探讨高血压并脑梗死 (HCI)患者血清肿瘤坏死因子 -α(TNF -α)水平变化与胰岛素抵抗 (IR)的关系。方法 :采用氧化酶法、放免法和酶联免疫法分别测定 2 3例HCI患者 (A组 )、2 5例高血压患者 (B组 )、2 1例正常健康人 (C组 )的空腹血糖 (FBG)、空腹胰岛素 (FINS)及血清TNF -α值 ,并计算胰岛素敏感指数 (ISI)。结果 :A组与B组、C组比较显示 :FINS、TNF -α水平显著增高 ,而ISI显著降低。相关分析发现 ,TNF -α与ISI呈显著负相关 ,而与FINS呈显著正相关。结论 :HCI患者TNF -α水平增高 ,且与胰岛素抵抗并存 ,可能参与高血压脑梗死的发生和发展     

胰岛素抵抗与脑血管病的关系

目的 :探讨胰岛素抵抗与脑梗死、脑出血之间的关系。方法 :选取 34例脑梗死 ,4 4例脑出血病人 ,分别检测血压、血脂、空腹血糖 (FPG)、空腹胰岛素 (FINS)等各项指标 ,30例健康人作为对照组。结果 :脑梗死、脑出血组与正常对照组比较 :FPG、FINS明显增高 ,而胰岛素敏感指数 (ISI)明显降低 ;收缩压 (SBP)、舒张压 (DBP)、总胆固醇 (TC)、甘油三脂 (TG)、低密度脂蛋白 (LDL)、载脂蛋白B(apoB)也升高 ;相反 ,高密度脂蛋白 (HDL)、载脂蛋白A(apoA)、apoA/apoB降低。脑梗死与脑出血两组之间比较 ,脑出血组的DBP明显高于脑梗死组 ,其余指标均无统计学差别。结论 :胰岛素抵抗是脑血管病的独立危险因素 ,但与中风类型无关     

2型糖尿病并发脑梗死危险因素临床分析

目的探讨2型糖尿病并发脑梗死的危险因素。方法随机选取120例患者,分为2型糖尿病并发脑梗死者组(A组)和单纯2型糖尿病组(B组),每组60例。对所入选患者测量空腹血糖(FBG)、空腹胰岛素(FBI)、血流变、甘油三酯(TG)、血胆固醇(TCHO)、低密度脂蛋白(LDL)、高密度脂蛋白(HDL),测量身高、体质量、血压,计算腹围指数(IBM)和胰岛素敏感指数(ISI),对所得结果进行分析。结果 2型糖尿病并发脑梗死患者其空腹血糖、甘油三酯、胆固醇、低密度脂蛋白、腹围指数、血压均高于单纯2型糖尿病者,而高密度脂蛋白、胰岛素敏感指数低于后者。结论高血压、高血糖、肥胖、高黏血症、高血脂、胰岛素抵抗是2型糖尿病并发脑梗死的危险因素。     

急性脑梗死时糖代谢特点

目的 :探讨急性脑梗死时血糖升高的原因及其对神经功能的影响。方法 :前瞻性分析 180例急性脑梗死患者空腹血糖(FBG)、胰岛素 (Ins)、胰岛素敏感指数的变化 (ISI) ,并分析其与脑梗死神经功能缺损和恢复的相关性。结果 :脑梗死急性期出现血糖水平升高者共 12 1例 ,85例为已确诊的糖尿病患者 ,11例为漏诊的糖尿病和糖耐量减低者 ,2 5例为一过性血糖升高的非糖尿病患者 ;一过性高血糖组恢复期的血糖水平较急性期明显下降 ,胰岛素水平则上升 ;糖尿病组急性期的胰岛素水平明显高于一过性高血糖组和血糖正常组 ;一过性高血糖组急性期的神经功能缺损较血糖正常组、糖尿病组严重 ,且其急性期血糖水平与其神经功能缺损评分呈正相关 ;结论 :急性脑梗死时血糖升高在非糖尿病患者和应激有关 ,其血糖升高程度与病变严重性相关。     

伴颈动脉粥样硬化的急性脑梗死患者胰岛素抵抗与TNF-α关系的临床研究

目的探讨肿瘤坏死因子α(TNF-α)与胰岛素抵抗(IR)在伴颈动脉粥样硬化(CAS)的急性脑梗死中的作用机制及二者之间的关系。方法比较44例伴CAS的急性脑梗死患者与80例健康对照组中空腹血糖(FPG)、空腹血清胰岛素(FINS)、胰岛素敏感指数(ISI)、胰岛素抵抗指数(HOMA-IR)、TNF-α、体重指数(BMI)等6个因素之间有无差异,并了解IR与TNF-α的相关性。结果伴CAS的急性脑梗死组与对照组相比,FPG、FINS、HOMA-IR、TNF-α明显高于对照组,ISI明显低于对照组(P<0.01或P<0.05);脑梗死组中,ISI与TNF-α呈显著负相关(r=-0.494,P<0.01)。结论在伴有CAS的急性脑梗死中同时存在IR及TNF-α升高,IR程度与TNF-α呈正相关。     

血糖、胰岛素在脑梗死急性期的变化特点与预后的相关性

目的探讨脑梗死急性期血糖、胰岛素水平变化的特点及其与预后的关系。方法 55例急性脑梗死患者在入院1 d及10 d检测空腹血糖(lnFPG)、胰岛素(lnINS),并于入院1 d及14 d行神经功能缺损(CSS)评分。按照入院1 d的lnFPG水平分为正常血糖组、高血糖组、糖尿病组。对照组30例,入院1 d送检lnFPG、lnINS。比较各组间指标差异。结果脑梗死组入院1 d的lnFPG、lnINS水平明显高于10 d及对照组(P<0.05)。比较1 d的lnFPG以糖尿病组最高,高血糖组次之,正常血糖组最低,有显著差异(P<0.05);10 d糖尿病组lnFPG高于另外3组(P<0.05)。比较1 d的lnINS以糖尿病组最高,其次为高血糖组,正常血糖组最低,有显著差异(P<0.05);10d的lnINS比较各脑梗死组及对照组之间均无显著差异(P>0.05)。1 d、14 d CSS评分比较以糖尿病组最高,其次为高血糖组,正常血糖组最低,其中糖尿病组明显高于其余两组(P<0.05)。结论脑梗死急性期血糖、胰岛素水平均升高,并且随病情好转,呈逐渐下降趋势。血糖升高者预后较差,而胰岛素抵抗可能是脑梗死急性期血糖升高的重要因素之一。两者对于病情评估、指导治疗和判断预后存在重要临床意义。     

胰岛素抵抗与脑血管病的关系

目的：探讨胰岛素抵抗与脑梗死、脑出血之间的关系。方法：选取34例脑梗死，44例脑出血病人，分别检测血压、血脂、空腹血糖（FPG）、空腹胰岛素（FINS）等各项指标，30例健康人作为对照组。结果：脑梗死、脑出血组与正常对照组比较：FPG、FINS明显增高，而胰岛素敏感指数（ISI）明显降低；收缩压（SBP）、舒张压（DBP）、总胆固醇（TC）、甘油三脂（TG）、低密度脂蛋白（LDL）、载脂蛋白B（apo B)也升高；相反，高密度脂蛋白（HDL）、载脂蛋白A（apo A)、apoA/apoB降低。脑梗死与脑出血两组之间比较，脑出血组的DBP明显高于脑梗死组，其余指标均无统计学差别。结论：胰岛素抵抗是脑血管病的独立危险因素，但与中风类型无关。     

脑梗死与胰岛素抵抗关系的实验研究

目的 对胰岛素抵抗与脑梗死之间的关系进行探讨。方法 分别对62例单纯性脑梗死患者和35例健康对照组进行空腹血糖(FBG)、空腹破岛素(FINs)、胆固醇(Tc)、甘油三酯(TG)，计算胰岛素敏感指数(ISI)，并与神经功能缺失评分和梗死灶面积进行直线相关分析。结果 脑梗死患者组FB6、FINS、TC、TG显著高于对照组(尸＜0．05)；ISI显著低于对照组。脑梗死轻型组与脑梗死重型组之间FINS和IsI也存在显著差异。IsI与梗死灶面积、神经功能缺失评分呈负相关。结论 破岛素抵抗与脑梗死有密切关系，可能是脑梗死的一个重要危险因素，它参与了脑梗死的发生发展。     

动脉粥样硬化性脑梗死与胰岛素抵抗的相关性研究

目的探讨胰岛素抵抗与动脉粥样硬化性脑梗死的关系。方法选取动脉粥样硬化性脑梗死患者76例,分为神经功能缺损轻型组和中重型组,健康对照者48例;各组分别检测空腹血糖、空腹血清胰岛素、血脂、尿酸,计算胰岛素敏感指数,采用SPSS软件进行统计学分析。结果动脉粥样硬化性脑梗死组空腹血糖、空腹血清胰岛素、总胆固醇、甘油三酯、低密度脂蛋白胆固醇、高密度脂蛋白胆固醇、胰岛素敏感指数与对照组比较差异均有统计学意义(P<0.05);动脉粥样硬化性脑梗死神经功能缺损,中重型组空腹血糖、空腹血清胰岛素、胰岛素敏感指数与轻型组比较差异均有统计学意义(P<0.05)。结论动脉粥样硬化性脑梗死患者存在胰岛素抵抗,胰岛素抵抗可能是动脉粥样硬化性脑梗死的危险因素;胰岛素抵抗与神经功能缺损的严重程度有关。     

脑卒中患者胰岛素抵抗的临床分析

目的 对脑卒中患者的胰岛素抵抗(IR)进行分析研究,探讨二者关系。方法 56例脑卒中患者脑梗死30例、脑出血26例,分别测定急性期及恢复期空腹血糖、C-肽、胰岛素浓度,计算其胰岛素敏感指数(ISI),并与对照组进行对比研究。结果 脑卒中患者急性期普遍存在胰岛素抵抗,而在恢复期脑梗死组的ISI显著低于对照组(P<0.05),脑出血组的ISI与对照组无显著性差异。结论 胰岛素抵抗在脑卒中的发病中可能发挥一定作用,且与卒中类型有关。     

原发性脑出血急性期引起高血糖的机制及影响

目的:探讨原发性脑出血(Pri mary Intracerebral hemorrhage ,PICH)急性期高血糖的发生机制及其对预后的影响。方法:128例原发性脑出血急性期患者,详细了解病史后体检并记录其影像学特征,检测空腹静脉血浆血糖、胰岛素并计算胰岛素敏感指数(Insulin sensitivity index,ISI)。所有统计方法都采用SPSS 10 .0软件。结果:高血糖组空腹胰岛素水平高于非高血糖组(P<0 .001) ,高血糖组胰岛素敏感指数较非高血糖组低(P=0 .010) ,中线移位与否对血糖的影响有显著性差异(P=0 .003) ,高血糖和非高血糖组死亡率有显著性差异(P=0 .013)。结论:原发性脑出血急性期高血糖的发生与应激、高胰岛素血症、胰岛素抵抗和中线移位等有关,高血糖提示预后不良,积极控制高血糖,有助于减少急性期死亡率。     

高血压性脑出血患者胰岛素抵抗的临床研究

目的:探讨高血压性脑出血(HIH)患者是否存在胰岛素抵抗(IR)与高胰岛紊血症(HIS),以及IR与患者病情、预后的关系。方法:测定了56例高血压性脑出血患者及37例原发性高血压患者、49例健康人的血糖(FPG)与血清胰岛素水平(FINS),同时采用胰岛素敏感性指数(ISI)方法进行计算,3个月后随访高血压性脑出血患者,进行日常生活能力(ADL)Barthel指数评分。结果:高血压性脑出血患者FPG及FINS增多明显高于对照组(P<0.001,P<0.001),其ISI较对照明显减低(P<0.001)。高血压性脑出血患者轻型组与重型组的FPG、FINS、ISI比较也存在显著性差异(P<0.001,P<0.05,P<0.001)。随访高血压性脑出血患者轻型组ADL评分明显高于重型组。结论:高血压性脑出血患者存在IR及HIS,其胰岛索水平及IR程度与患者病情、预后有关。建议对高血压性脑出血患者的血糖水平升高与IR及ISI下降者应积极使用改善胰岛素敏感性的药物治疗。     

Regional cerebral blood flow decreases during chronic and acute hyperglycemia

The presence of hyperglycemia prior to stroke or cardiac arrest can increase neuronal damage caused by brain ischemia. Acute hyperglycemia shows this effect in animal models of stroke. However, chronic hyperglycemia and chronic hyperglycemia with additional acute elevation of blood glucose are more common premorbid states for stroke patients. The effect of chronic hyperglycemia on regional cerebral blood flow (rCBF) is unclear but blood flow changes may play a role in this ischemic cell damage. We measured rCBF in awake restrained rats that had chronic hyperglycemia induced by treatment with streptozotocin. This was compared to that measured in rats made acutely hyperglycemic by injecting glucose into the peritoneal space. rCBF was measured in 17 brain regions using [14C]iodoantipyrine. During chronic hyperglycemia, when plasma glucose was 29 microns/ml, rCBF was decreased and a regional distribution of this effect was noted; 9 hindbrain regions showed a mean flow decrease of 14% while forebrain regions demonstrated less flow reduction. Acute elevation of plasma glucose during normoglycemia or superimposed on chronic hyperglycemia produced flow reductions of 7% for each 10 microns/ml increment in plasma glucose up to 60 microns/ml. Both chronic and acute hyperglycemia are associated with decreased rCBF and the mechanism for this effect does not appear to adapt to chronic hyperglycemia.     

急性脑血管病应激性高血糖与血清胰岛素及病灶情况的研究

目的 探讨急性脑血管病(ACVD)应激性高血糖及血清胰岛素与病变性质、大小、部位之间的关系。方法 采用双盲法检测发病1周内ACVD患者空腹血糖(FBG)和空腹胰岛素(FINS)。FBG升高者为高血糖组，FBG正常者为正常血糖组，每组各100例。根据头部CT或MRI记录高血糖组病变的性质、大小及部位。结果 两组FBG与FINS之间呈正相关关系；高血糖组血糖升高的水平与病变的性质、大小、部位有关；经统计学处理有显著性差异。结论 ACVD应激性高血糖与胰岛素抵抗(IR)有关；脑出血比脑梗死、大病灶比小病灶、近中线部位比远离中线部位血糖升高更明显。     

血糖与脑卒中意识障碍及近期预后的关系

本研究纳入146例急性脑卒中患者,测定其发病早期血糖值,同时对其意识状况进行GCS评分,并观察其近期预后。结果提示早期血糖水平与GCS呈明显负相关关系,高血糖组昏迷发生率和病死率均明显高于非高血糖组,近期预后差,昏迷组及死亡组血糖均值和高血糖发生率均明显高于非昏迷组及存活组。治疗上推荐使用胰岛素,而且应尽量避免引起血糖增高的因素,使血糖维持在正常水平,以期能改善息者的近期预后和减少神经功能缺损。     

nsulin resistance and occurrence and prognosis of schemic stroke——A non-randomized concurrent control and intra-group comparison

BACKGROUND： Clinical evidence has demonstrated that insulin resistance might be an independent risk factor for ischemic stroke, which has not been recognized. At present, insulin resistance has been proven to be an independent risk factor for coronary arteriosclerotic heart disease. However, the relationship between the onset and prognosis of ischemic stroke remains unclear. OBJECTIVE： This study was designed to analyze the relationship between insulin resistance and ischemic stroke and the correlation between insulin resistance and stroke risk factor, and to investigate the relationship between insulin resistance and ischemic stroke prognosis as well as whether insulin resistance is an independent prognostic factor. DESIGN： A non-randomized concurrent control experiment. SETTING： Department of Geriatric Disease, Second Affiliated Hospital of Kunming Medical College. PARTICIPANTS： A total of 106 inpatients with ischemic stroke of the cervical internal carotid artery, who had suffered from the disease within the previous 72 hours, were admitted to the Department of Neurology, First Affiliated Hospital of Kunming Medical College from March to December in 2005 and, recruited for the present study. All 106 inpatients corresponded to the diagnostic criteria of ischemic stroke, formulated at the Fourth National Cerebrovascular Disease Conference in 1995, and were confirmed as having had an ischemic stroke by CT/MRI examinations. The patient group consisted of 54 males and 52 females. An additional 50 healthy individuals, who received health examinations simultaneously, were included as controls. Among the control subjects, there were 26 males and 24 females. Informed consent for laboratory measurements was obtained from all subjects; this study was approved by the Hospital Ethics Committee. METHODS： Following admission, all subjects were inquired of age, gender, previous history, blood pressure, body temperature, admission time, and smoking habits. Meanwhile, they were scored on clinical neurological functi     

Transient hyperglycemia in ischemic stroke patients

The aim of the study was to investigate glucose derangement and its short- and long-term prognostic significance in nondiabetic ischemic stroke patients. The study involved 262 consecutive patients, mean age: 70.1+/-12.4 years, with a supratentorial ischemic stroke. The following data were collected: patients characteristics, risk factors, comorbidities, and stroke severity assessed by the Scandinavian Stroke Scale (SSS). Serum glucose levels were measured on admission, on the next, 2nd, 3rd, 5th, 7th and 14th day after stroke onset. The outcome measures on day 30 were mortality and capacity to perform daily activities: the Barthel Index and Rankin Scale. The 1-year survival was estimated by the Kaplan-Meier method. Cox proportional hazards regression was used to assess predictors of 1-year mortality in nondiabetics.Diabetes mellitus was found in 24.8% of patients and transient hyperglycemia in 36.3% of patients. Patients with transient hyperglycemia scored lower on SSS in the subsequent days of assessment than patients with either diabetes mellitus or normoglycemia. They had larger ischemic lesions on computer tomography (CT) than diabetics and had higher 30-day mortality than normoglycemics (p<0.05). One-year mortality was similar in transient hyperglycemics and diabetics, and both were significantly higher than in normoglycemics (p<0.05). A proportional hazards model analysis showed that transient hyperglycemia is not an independent predictor of death within a year after stroke.     

胰岛素抵抗与缺血性脑血管病之间关系的动态研究

目的；研究胰岛素抵抗与缺血性脑血管病之间的关系。方法：选取脑梗死病人作为研究对象，测定血糖，胰岛素，Ｃ－Ｐ等指标，以胰岛素敏感指数与对照组比较。结果：ＦＩＮＳ，Ｃ－Ｐ和ＩＳＩ均有显著性差异，ＩＳＩ与ＦＩＮＳ和Ｃ－Ｐ存在极显著负相关Ｃ－Ｐ与ＦＩＮＳ存在极显著正相关，与ＩＳＩ存在极显著负相关。