血清基质金属蛋白酶-9检测与系统性红斑狼疮活动性的关系

目的探讨血清基质金属蛋白酶-9(MMP-9)与系统性红斑狼疮(SLE)活动程度的关系和意义。方法采用双抗体夹心酶联免疫吸附测定法,检测30名健康人和36例SLE患者血清MMP-9水平,以分析其与SLE活动性变化关系。结果SLE患者血清MMP-9水平[(108±113)ng/ml]明显低于正常对照组[(352±115)ng/ml],P<0.001;糖皮质激素治疗后血清MMP-9水平[(246±196)ng/ml]与治疗前水平[(114±92)ng/ml]相比,差异有显著性意义(P<0.05);SLE患者活动期血清MMP-9水平[(72±66)ng/ml]低于非活动期[(166±146)ng/ml],P<0.05;SLEDAI>8分组[(80±72)ng/ml]低于SLEDAI≤8分组[(152±150)ng/ml],P<0.05;蛋白尿组[(82±20)ng/ml]低于非蛋白尿组[(152±43)ng/ml],P<0.05;关节炎组[(103±126)ng/ml]与非关节炎组[(117±89)ng/ml]之间差异无显著性,P>0.05。结论MMP-9可能与SLE的发病相关,血清MMP-9可作为反映SLE活动程度、肾脏损害及疾病进展或改善的一项指标。     

血脂异常对血清细胞黏附分子水平的影响

目的 :探讨血脂异常对血清细胞间黏附分子 1(ICAM 1)、血管细胞黏附分子 1(VCAM 1)和E 选择素水平的影响。方法 :入选 12 0例研究对象 ,其中高胆固醇血症 (Ⅰ组 ) 31例 ;高三酰甘油血症 (Ⅱ组 ) 30例 ;混合性高脂血症 (Ⅲ组 ) 2 9例 ;血脂正常 (Ⅳ组 ) 30例。用酶联免疫吸附法检测血清ICAM 1、VCAM 1和E 选择素水平 ,比较上述 3个指标在各组间的差异。结果 :总胆固醇水平 ,Ⅰ组 [(6 .5 5± 0 .6 7)mmol/L]和Ⅲ组 [(6 .2 7±0 .6 7)mmol/L]显著高于Ⅳ组 [(4.38± 0 .4 9)mmol/L],P <0 .0 1;三酰甘油水平 ,Ⅱ组 [(3.39± 0 .6 0 )mmol/L]和Ⅲ组 [(3.4 4± 0 .6 2 )mmol/L]显著高于Ⅳ组 [(1.39± 0 .4 0 )mmol/L],P <0 .0 1。同时 ,血清ICAM 1水平在Ⅰ组 [(76 4± 71) μg/L]、Ⅱ组 [(74 9± 71) μg/L]和Ⅲ组 [(82 3± 80 ) μg/L]明显高于Ⅳ组 [(6 0 4± 6 7) μg/L],P <0 .0 1;血清VCAM 1水平在Ⅰ组 [(1837± 16 4 ) μg/L]、Ⅱ组 [(1836± 16 0 ) μg/L]和Ⅲ组 [(196 3± 181) μg/L]明显高于Ⅳ组 [(130 7± 14 9) μg/L],P <0 .0 1;血清E 选择素水平在Ⅰ组 [(6 6± 12 ) μg/L]、Ⅱ组 [(70± 14 ) μg/L]和Ⅲ组 [(81± 17) μg/L]明显高于Ⅳ组 [(39± 11) μg/L],P <0 .0 1。结论 :血脂异常可使血清I     

系统性红斑狼疮患者血清中B淋巴细胞刺激因子的检测

目的检测系统性红斑狼疮(SLE)患者血清B淋巴细胞刺激因子(BLyS)水平,并探讨其在SLE发病中的意义。方法采用双抗体夹心酶联免疫吸附试验(ELISA)法检测血清BLyS水平。结果①SLE患者血清BLyS[(9.6±2.3)ng/ml]显著高于正常人对照组[(4.0±1.5)ng/ml]。②SLE患者中,血清BLyS水平活动组[(11.1±2.2)ng/ml]高于非活动组[(8.1±1.2)ng/ml],抗dsDNA抗体阳性组[(10.9±2.2)ng/ml]高于抗dsDNA抗体阴性组[(8.1±1.4)ng/ml],高IgG组[(10.8±2.4)ng/ml]高于非高IgG组[(8.3±1.3)ng/ml],低C3组[(10.2±2.5)ng/ml]高于非低C3组[(8.3±1.3)ng/ml],低C4组[(10.1±2.3)ng/ml]高于非低C4组[(7.6±0.7)ng/ml],低血小板计数组[(10.7±2.7)ng/ml]高于非低血小板计数组[(8.8±1.7)ng/ml]。③SLE患者血清BLyS水平与SLE疾病活动指数(SLEDAI)(r=0.56,t=15.89,P<0.01)、IgG(r=0.33,t=4.20,P<0.05)呈正相关;与C4(r=-0.47,t=10.04,P<0.01)、血小板计数(r=-0.53,t=13.85,P<0.01)呈负相关。结论BLyS可能参与SLE的发病。     

酒精性肝病患者血清铁蛋白和血清铁检测的意义

目的探讨检测血清铁和血清铁蛋白水平对诊断酒精性肝病（ALD）患者的意义。方法在61例慢性乙型肝炎（CHB）、34例CHB合并ALD、75例ALD和30例正常人,采用放射免疫法检测血清铁蛋白;使用全自动生化分析仪测定血清铁;采用微粒子发光法检测血清乙型肝炎病毒标记物。结果 CHB/ALD和ALD患者血清铁分别为8.04±4.38μmol/L和9.41±3.59μmol/L,血清铁蛋白水平分别为267.54±42.12μg/L和276.16±61.14μg/L,与CHB和正常人比,差异显著（P〈0.05）;酒精性肝炎和肝硬化患者血清铁和铁蛋白水平与酒精性脂肪肝患者比,差异也有显著性意义（P〈0.001）。结论 ALD患者存在明显的铁代谢异常。     

妊娠对乙型肝炎肝郁脾虚型患者血清细胞因子浓度的影响及临床意义

目的 :探讨妊娠对慢性乙型肝炎 (乙肝 )肝郁脾虚型患者血清白细胞介素 - 10、12 (IL - 10、IL - 12 )、γ-干扰素 (IFN-γ)浓度的影响及临床意义。方法 :用酶联免疫法 (EL ISA)检测孕期和非孕期患者 IL - 10、IL - 12及 IFN -γ血清浓度 ,并作同期肝功能指标检查。患者分为早孕期 (2 6例 )、晚孕期 (32例 )、非孕期 (31例 ) 3组。 2 0例非孕期健康者为对照组。结果 :早孕期组 IL - 10水平 [(2 6 .0± 9.8) ng/ L ]较非孕期组 [(18.0± 1.3) ng/ L ]升高 (P <0 .0 5 ) ,而与对照组 [(2 9.4± 5 .1) ng/ L ]相近 (P >0 .0 5 )。IL - 12、IFN -γ分别为 (5 4 .1± 2 6 .0 ) ng/ L和 (45 .5± 17.3) ng/ L ,较对照组 [(8.2± 2 .1) ng/ L、(2 4 .5± 6 .1) ng/ L ]和非孕期组 [(8.0± 2 .7) ng/ L、(16 .7± 3.7) ng/ L ]均明显升高 (均P <0 .0 1)。晚孕期组与其他各组比较 ,IL - 10 [(9.4± 1.9) ng/ L ]明显下降 (P <0 .0 1) ,但 IL - 12 [(16 6 8.0± 318.2 )ng/ L ]、IFN -γ[(46 1.0± 10 3.3) ng/ L ]显著升高。结论 :妊娠可使慢性乙肝肝郁脾虚型患者血清 IL - 12、IFN-γ浓度升高 ,在晚孕期表现更为明显。     

青海地区非酒精性单纯性脂肪肝患者血清脂联素、铁蛋白的水平及意义

目的通过检测血清脂联素(APN)、铁蛋白(SF)水平在青海地区非酒精性单纯性脂肪肝(NAFL)患者及正常人群中的变化,探讨APN、SF在NAFL发病中的意义。方法选取2015年2-10月在青海大学附属医院确诊为NAFL的39例患者作为病例组(NAFL组),34例健康体检者作为对照组,测定其人体学指标及临床常规生化指标,采用ELISA和化学发光免疫分析法分别检测血清APN、SF水平。2组间比较采用成组t检验,相关性分析采用Pearson相关分析法。结果 NAFL组SF水平明显高于正常对照组[(291.97±38.82)ng/ml vs(93.21±8.74)ng/ml,t=31.085,P0.001];而血清APN水平显著低于正常对照组[(11.91±2.88)mg/L vs(16.18±2.80)mg/L,t=6.383,P0.001]。相关性分析提示,NAFL组血清APN水平与TG呈负相关(r=-0.466,P0.01)。结论青海地区NAFL患者血清APN降低,SF升高,NAFL组血清APN与TG呈负相关,APN水平受TG影响,监测血清APN水平可作为高甘油三脂血症治疗前后效果评价的参考指标。     

社区获得性肺炎患者血清丙二醛和血清总抗氧化力水平测定的临床意义

目的 观察社区获得性肺炎(CAP)患者血清丙二醛(MDA)和血清总抗氧化力(T-AOC)水平的变化,探讨其临床意义.方法 以徐州医学院附属医院呼吸科2010年9月-2011年9月收治的90例CAP患者[男54例,女36例,平均年龄(54±20)岁]和30名同期在我院体检健康者[男20名,女10名,平均年龄(52±11)岁]为研究对象.CAP患者进行肺炎严重指数(PSI)评分,将其分为Ⅰ～Ⅲ级低危险组46例,Ⅳ～Ⅴ级为高危险组44例;检测血清MDA和血清T-AOC水平.组间采用t检验或者x2检验;CAP组中根据患者存活或死亡的转归,进行Logistic回归分析.结果 CAP组血清MDA[(6.5±2.4) μmol/L]高于对照组[(3.6±0.3)μmol/L];CAP组血清T-AOC[(12.6±1.6) U/ml]低于对照组[(17.7±2.1) U/ml];高危险组及死亡组血清MDA[(8.1±2.5) μmol/L;(9.9±1.6)μmol/L]高于低危险组及存活组[(4.9±0.7) μmol/L;(6.1±2.2)μmol/L];高危险组及死亡组血清T-AOC[(11.5±1.6) U/ml;(10.6±1.5)U/ml]低于低危险组及存活组[(13.6±0.6) U/ml;(12.8±1.4) U/ml];血清MDA与PSI评分呈正相关,相关系数为0.745;差异均有统计学意义(P＜0.05).经过有效治疗后血清MDA水平总体呈下降趋势,血清T-AOC呈上升趋势.Logistic回归分析血清MDA是影响CAP患者预后的危险因素.结论 CAP患者血清MDA水平能够反应病情的严重程度及判断预后.动态监测血清MDA和T-AOC水平可以帮助判断治疗效果.     

慢性阻塞性肺疾病患者炎症细胞因子与肺通气功能的相关研究

目的　探讨慢性阻塞性肺疾病 (COPD)患者肺通气功能改变与炎症因子变化之间的关系。方法　稳定期COPD和慢性支气管炎 (简称慢支 )患者各 8例 ,,另有 8名健康者作为对照 ,进行肺功能检查 ,并经支气管肺泡灌洗获取肺泡巨噬细胞进行培养 ,采用酶联免疫吸附 (ELISA)方法测定大肠杆菌内毒素 (LPS)刺激后上清液中白细胞介素 8(IL 8)、IL 1β、IL 6和肿瘤坏死因子α(TNF α)的浓度 ,细胞因子之间相关性采用Pearson相关阵分析 ,肺功能值与细胞因子相关性采用多元后退回归法分析。结果　 (1)肺泡巨噬细胞释放IL 8:加入LPS后COPD组为 [(43± 2 7) μg/L和 (5 7± 41) μg/L],与正常对照组 [(13± 10 ) μg/L和 (2 0± 13 ) μg/L) ]比较差异有显著性 (P <0 .0 5 ) ;与慢支组 [(2 9± 2 1)μg/L和 (3 2± 2 3 ) μg/L]比较差异有显著性 (P >0 .0 5 )。 (2 )加入LPS前、后 ,COPD组、慢支组和正常对照组肺泡巨噬细胞释放IL 1β分别为 [(5 0± 41)ng/L、(94± 5 9)ng/L、(3 7± 3 2 )ng/L、(2 2 5± 10 8)ng/L、(15 3± 175 )ng/L、(70± 3 7)ng/L],与IL 8的释放呈正相关 (P <0 .0 5 ) ;三组肺泡巨噬细胞在LPS刺激后释放TNF α分别为 [(12 3 8± 679)ng/L、(3 0 88± 2 879)ng/L、(13 3 2± 1846)ng/L],与IL 1β呈正相     

高血压病患者血清Ⅰ型和Ⅲ型前胶原浓度变化及其临床意义探讨

目的　探讨高血压病 (EH)患者心肌纤维化的无创性检测指标。方法　采用放免法测定 30例正常人和 6 0例EH患者 (伴心肌肥厚者 35例和不伴心肌肥厚者 2 5例 )血清Ⅰ型前胶原 (PCⅠ )和Ⅲ型前胶原 (PCⅢ )的浓度 ,用M型超声测算左室重量指数 (LVMI) ,用多普勒超声测定二尖瓣口舒张早期和晚期最大血流速度 (VE 和VA)。结果　①EH患者血清PCⅠ和PCⅢ均明显高于正常对照组 [(4 6 6 5± 11 0 1)μg/Lvs (34 31± 5 91) μg/L ,P <0 0 5和 (146 0 0± 2 9 35 ) μg/Lvs (96 2 4± 2 1 18) μg/L ,P <0 0 1]。②EH非左室肥厚组血清PCⅢ浓度明显高于正常对照组 [(12 0 6 2± 16 2 3) μg/Lvs(96 2 4± 2 1 18) μg/L ,P <0 0 1],而血清PCⅠ与正常对照组无差别 [(33 73± 6 83) μg/Lvs (34 31± 5 91) μg/L ,P >0 5 ];EH左室肥厚组血清PCⅢ高于非肥厚组 [(16 4 14±2 2 2 8) μg/Lvs (12 0 6 2± 16 2 3) μg/L ,P <0 0 1]和正常对照组 [(16 4 14± 2 2 2 8) μg/Lvs (96 2 4± 2 1 18) μg/L ,P <0 0 1];血清PCⅠ亦高于非肥厚组 [(5 5 88± 12 86 ) μg/Lvs(33 73± 6 83) μg/L ,P <0 0 1]和正常对照组 [(5 5 88±12 86 ) μg/Lvs (34 31± 5 91) μg/L ,P <0 0 1]。③血清PCⅢ与V     

雷米普利对老年心力衰竭患者血清细胞因子的影响

目的研究老年心力衰竭患者血清细胞因子水平与心功能的关系以及雷米普利对血清细胞因子的影响.方法将76例老年心力衰竭患者随机分为雷米普利治疗组(36例)和常规治疗组(40例),另设年龄、性别与之匹配的健康老年人作为对照组(30例).应用双抗夹心ELISA法检测各组受试者血清肿瘤坏死因子α(TNF-α)、可溶性肿瘤坏死因子受体(STNFRI)、白细胞介素6(IL-6)、白细胞介素10(IL-10)和转化生长因子β1(TGF-β1)水平.常规治疗组和雷米普利组在治疗2周后复查上述指标.结果(1)血清TNF-α、STNFRI、IL-6、IL-10和TGF-βI水平与老年心力衰竭患者的基础心脏病无关(P＜0.05);上述血清细胞因子水平随心功能的恶化而升高(P＜0.05或P＜0.01).(2)与治疗前比较,雷米普利治疗组治疗前后血清TNF-α[(20.9±8.2)μg/L比(13.2±8.4)μg/L]、sTNFRI[(2.7±0.9)μg/L比(1.9±0.4)μg/L]、IL-6[(29.2±6.8)ng/L比(20.5±6.0)ng/L]、IL-10[(22.1±6.4)ng/L比(13.8±5.7)ng/L]及TGF-β1[(2144.1±597.9)ng/L比(1348.8±342.4)ng/L]水平均下降(分别为P＜0.05或P＜0.01),雷米普利治疗组比常规治疗组下降明显(P＜0.01).结论老年心力衰竭患者血清细胞因子与心功能密切相关,能够反映心力衰竭的程度;雷米普利能明显改善老年心力衰竭患者细胞因子的异常.     

中老年人血清铁与非酒精性脂肪肝的相关性研究

目的:研究血清铁与非酒精性脂肪肝(NAFLD)患病风险的相关性。方法:在上海40岁以上社区居民中进行问卷调查,并进行体格检查、高分辨率超声检查以及血清铁、血脂、胰岛素、空腹及口服葡萄糖耐量试验(OGTT)2 h血糖(2hPG)、肝功能、肾功能等生化检测,对其中数据完整的2120名居民进行分析。分别采用线性回归分析血清铁离子浓度与NAFLD危险因素的相关性,多元Logistic回归模型分析血清铁与NAFLD患病风险之间的关系。结果:NAFLD的患病率为27.4%。从血清铁离子浓度第1四分位组到第4四分位组,NAFLD患病率呈增高趋势,分别为20.8%、29.2%、28.4%、31.2%(组间趋势P=0.0005)。多元Logistic回归分析显示,与血清铁离子浓度第1四分位组(≤14.3 μmol/L)相比,第2四分位组(14.4~17.8 μmol/L)、第3四分位组(17.9~21.9 μmol/L)及第4四分位组(>21.9 μmol/L)NAFLD的患病风险比值比(OR)分别是1.57[95%可信区间(CI):1.19~2.08]、1.51(95%CI:1.14~2.00)、1.72(95%CI:1.30~2.28)(趋势P=0.0005),在校正年龄、性别、吸烟、饮酒、体质量指数(BMI)、收缩压(SBP)、脂代谢指标、空腹血糖对数值(lg FPG)等相关混杂因素后,3组NAFLD患病风险OR分别是1.31(95%CI 0.91~1.89)、1.44(95%CI 0.99~2.09)、1.48(95%CI 1.01~2.19)(趋势P=0.0274)。结论:上海社区40岁以上人群中,高浓度血清铁离子与NAFLD的患病风险显著相关。     

血清胆红素水平与非酒精性脂肪性肝病的关系研究

目的探讨血清胆红素水平与非酒精性脂肪性肝病(NAFLD)的关系。方法以2013年1月-2013年6月在新疆医科大学第五附属医院进行健康体检者为研究对象,从中筛查出NAFLD患者462例,按年龄、性别配对的方法选取健康对照者462例,测量两组身高、体质量、血压、总胆红素、直接胆红素、间接胆红素、丙氨酸转氨酶、天冬氨酸转氨酶、三酰甘油、总胆固醇、高密度脂蛋白胆固醇、空腹血糖、尿酸等指标,t检验比较两组上述指标差异,多因素Logistic回归分析NAFLD患病影响因素。结果与对照组相比,NAFLD组体质量指数、收缩压、舒张压、丙氨酸转氨酶、天冬氨酸转氨酶、三酰甘油、总胆固醇、空腹血糖和尿酸水平明显升高(P0.01),总胆红素、直接胆红素、间接胆红素水平明显降低(P0.01);随着体质量指数(OR=1.363,P0.01)、舒张压(OR=1.040,P0.01)、丙氨酸转氨酶(OR=1.038,P0.01)、三酰甘油(OR=1.399,P0.01)、空腹血糖(OR=1.865,P0.01)和尿酸(OR=1.006,P0.01)水平上升,NAFLD发生的风险增加;随着总胆红素水平升高,NAFLD的发生风险降低(OR=0.897,P0.01)。结论血清胆红素与NAFLD的发生密切相关,血清胆红素水平下降将导致NAFLD发生的风险增加。     

Non-alcoholic fatty liver disease and correlation of serum alanin aminotransferase level with histopathologic findings

Background

Non-alcoholic fatty liver disease (NAFLD) has been recognized as the most common cause of chronic liver disease worldwide. It occurs in patients who do not consume alcohol in large amounts. Alanine aminotranferase (ALT) and aspartate aminotransferase (AST) are indicators of hepatocellular injury.

Objectives

To determine correlation between histopathologic specifications of NAFLD in patients with little or no history of alcohol consumption and the serum level of ALT.

Patients and Methods

In a cross-sectional study carried out in two gastroenterology and hepatology clinics in Tehran, Iran, the medical records of those who had undergone liver biopsies between years 2005 and 2009 were reviewed. Clinical and laboratory information of biopsy-proven cases of NAFLD were obtained from 147 eligible medical records. The histopathologic, demographic, and laboratory data of the participants were also collected. Two groups of patients according to their serum ALT level (cut-point of 35 U/L) were defined. The quantitative pathologic grade of the biopsy specimens was determined based on Brunt scoring system.

Results

We studied 147 NAFLD patients including 127 men (86.4%) and 20 women (13.6%) with a mean ± SD age of 41.4 ± 11.2 years. Considering serum ALT, the mean ± SD quantitative grade of hepatosteatosis was 1.50 ± 0.67 and 1.74 ± 0.73 (p=0.136); advanced fibrosis (consisted of grade III and cirrhosis) was found in 4.5% (1/22) and 5.6% (7/125) of patients (p=0.327).

Conclusions

We found that using the cut-off value of 35 U/L for serum ALT level, it has little contribution to predict NAFLD severity.     

维吾尔族、汉族非酒精性脂肪肝与血尿酸的相关性研究

目的 探讨维吾尔族、汉族非酒精性脂肪肝与血尿酸之间的关系.方法 采用横断面研究,调查在新疆医科大学第一附属医院体检者4724人,维吾尔族2439人,汉族2285人;所有受试者均进行问卷调查、体重指数、腰围、血压、血糖、血脂、血尿酸等生化检测;将正常范围血清尿酸浓度按四分位分组,尿酸浓度高于正常范围为高尿酸组,分析血尿酸与非酒精性脂肪肝的关系以及高尿酸血症与代谢综合征及其组分的关联性.结果 维吾尔族、汉族人群非酒精性脂肪肝检出率分别为26.7％、23.6％,高尿酸血症检出率分别为7.8％、18.2％;维吾尔族人群的尿酸水平低于汉族(P＜0.01),非酒精性脂肪肝组血清尿酸水平高于对照组(P＜0.01);高尿酸血症组中非酒精性脂肪肝在维吾尔族、汉族人群的检出率为24.0％、19.0％,高于非高尿酸血症组;即使在正常范围内,非酒精性脂肪肝检出率随血清尿酸水平升高而升高.结论 维吾尔族人群血尿酸水平与非酒精性脂肪肝发病的关系较汉族人群更为密切.     

2型糖尿病患者血尿酸水平与非酒精性脂肪肝的相关性研究

回顾性分析1 007例住院2型糖尿病患者,分为伴和不伴非酒精性脂肪肝(NAFLD)2组,收集患者临床及生化资料.结果表明,血尿酸与血糖呈负相关,与体重指数及肾功能呈正相关(P＜0.01),伴NAFLD组年龄较低、2型糖尿病病程均短,血清尿酸升高,尿酸清除率降低;随血尿酸水平升高,发生NAFLD的风险增大.     

中老年人血尿酸水平与非酒精性脂肪性肝病的相关性研究

目的:研究中老年人群血尿酸水平与非酒精性脂肪性肝病(NAFLD)的相关性。方法 :采取整群抽样方法,对上海市嘉定社区2 519名40岁以上常住居民进行问卷调查、体格检查,同时采血进行血尿酸、血糖、血脂、肝功能、肾功能检测,以及上腹部彩色多普勒超声检查。NAFLD的诊断依据高分辨率超声扫描结果。按照血尿酸水平四分位数将研究人群分为Q1、Q2、Q3、Q4四组,并对其各项代谢指标进行分析。结果:NAFLD组的血尿酸水平显著高于非NAFLD组[(319.6±92.3)比(272.8±88.8)μmol/L,P<0.05)。结论:上海城镇中老年人群NAFLD患病风险随着血尿酸水平升高而增加。     

非酒精性脂肪肝血尿酸水平与胰岛素抵抗的相关性

目的:研究非酒精性脂肪肝(non-alcoholic fatty liver,NAFL)患者血尿酸水平及其与胰岛素抵抗程度的相关性.方法:选取单纯NAFL患者40例,NAFL合并2型糖尿病患者(type2diabetes mellitus,T2DM)72例,健康体检者62名为研究对象.测定体重指数(body mass index,BMI),检测空腹血糖(fasting blood glucose,FBG)、尿酸(serum uric acid,SUA)、丙氨酸氨基转移酶(alanine aminotransferase,ALT)、门冬氨酸氨基转移酶(aspartate aminotransferase,AST)、胆固醇(cholesterol,TC)、甘油三酯(triglyceride,TG)、糖化血红蛋白(glycated hemoglobin,HbA1C)、尿微量白蛋白/尿肌酐(Ualb/UCr)等生化指标并行肝脏B超检查.放射免疫法测定空腹胰岛素(fasting insulin,FINS),计算胰岛素抵抗指数(HOMA IR).结果:NAFL合并T2DM组BMI、SUA、ALT、AST、TG、FBG、FINS、HOMA IR、HbA1C、Ualb/UCr、SF均高于对照组;与单纯NAFL比较,NAFL合并T2DM组胰岛素抵抗及SUA水平更重;相关性研究表明FBG、HOMA IR、HbA1C与SUA呈正相关.结论:NAFL患者存在明显的胰岛素抵抗及高血尿酸血症,且两者具有一定的相关性.降低胰岛素抵抗联合纠正尿酸代谢紊乱对防止NAFL的发生发展具有重要的临床意义.     

Blood sugar,serum insulin and serum free fatty acid responses to graded glucose pulses in hypothyroid dogs

Summary The actions of hypothyroidism on BS, serum IRI and circulating FFA profiles observed in response to single glucose pulses at three levels of stimulation (1.00, 0.66 and 0.33 g/kg body weight) in male dogs were studied. Hypothyroidism modified neither of the mean basal values of these variables. There were different mean BS responses for every time and dose with significant interaction between the two. The BS curves at different doses were not parallel. There was a different time effect for every dose of glucose, and normal and hypothyroid dogs did not differ in this respect. The mean serum IRI responses found in normal and hypothyroid dogs were different; the mean responses at different times also differed, and there were significant normality-time and dose-time interactions. If the hypothyroid dogs and the euthyroid controls received a particular dose of glucose, a significant time effect on the serum IRI level was observed. In the normal dogs receiving glucose dose 1.00, a significant serum IRI response between 5 and 25 min was observed; in the hypothyroid dogs receiving a similar treatment, the significant response lasted from 5 to 45 min. In the normal dogs receiving glucose dose 0.66, the response was significant only at 5 min, and the serum IRI levels were below baseline between 60 and 90 min, while in the hypothyroid dogs the IRI response lasted from 5 to 25 min. In both normal and hypothyroid dogs receiving the 0.33 dose, the responses were significant between 5 and 25 min. As for the mean serum FFA responses to glucose, they were different at every time, and a significant normality-time interaction was found. In the euthyroid controls, the response lasted from 5 to 60 min, while it was longer in the hypothyroid dogs, lasting from 5 min after glucose injection until the end of the test. Sponsored by theConsejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina. Established Investigator (CONICET), Argentina.     

住院2型糖尿病患者血钙、磷与代谢相关脂肪性肝病相关性的研究

目的分析住院T2DM患者血钙(Ca)、血磷(P)及其乘积(Ca×P)与代谢相关脂肪性肝病(MAFLD)的相关性。方法选取2012年1月至2017年9月于北京大学人民医院内分泌科住院的2089例T2DM患者,按照是否合并MAFLD分为单纯T2DM组(T2DM,n=809),T2DM合并MAFLD组(MAFLD,n=1280)。以腹部彩超诊断MAFLD;分析血Ca、P、Ca×P与MAFLD间的相关性。结果所有患者平均年龄(56.1±13.5)岁,合并MAFLD患者占61.3%。以血Ca、P和Ca×P进行四分位为自变量行Logistic分析显示,校正性别、年龄、SBP、HbA₁c、HDL-C、BMI、DM病程、eGFR、噻嗪类利尿剂和袢利尿剂应用后,血Ca、P及Ca×P是MAFLD的影响因素;进一步校正白蛋白(ALB)后,排除血Ca是MAFLD的影响因素。结论T2DM患者血P、Ca×P是MAFLD的影响因素,ALB是影响血Ca与MAFLD的混杂因素。     

Blood sugar,serum insulin and serum free fatty acid responses to slow graded glucose in thyroxine-treated dogs

Summary The effects of short-term (10 days) thyroxine administration (100 μg/kg body weight/die) on the BS, serum IRI and circulating FFA responses to slow, graded glucose stimulation were studied in dogs. The experiments reported demonstrated that the mean basal BS value in thyroxine-treated dogs is higher than that found in untreated controls, and that non-parallel mean BS responses to glucose infusion were observed during the test: the higher curve was found in the thyroxine-treated group. Mean basal serum IRI was similar in both groups, and parallel insulinemic responses to hyperglycemia were observed. Mean serum IRI responses as a function of time from the start of infusion in hyperthyroid dogs were lower than those observed in untreated controls. Mean basal serum FFA levels in both groups did not differ, and parallel serum FFA curves were found during the test. Thyroxine treatment caused a better lipogenic response to combined hyperglycemia/hyperinsulinemia and a steep subsequent rebound of serum FFA, as compared to untreated controls. We conclude that dogs with recently induced hyperthyroidism show an impairment in the net glucose uptake by tissues, a poor insulinemic response to glucose, a good lipogenic response and a sharp subsequent rebound of serum FFA. The high BS curve, the high tissue FFA response to insulin antagonists and the high mean BS level in the fasting condition might be accounted for by a thyroxine-induced active production of cAMP in body cells, but the low insulin secretion evidently is due to other mechanisms. Sponsored byConsejo Nacional de Investigaciones Cientificas y Técnicas (CONICET), Res. Grant No. 2304-h andUniversidad de Buenos Aires, Res. Grant No. 10030110-127, Buenos Aires, Argentina. Established investigator (CONICET).