doi:10.3969/j.issn.1002-7386.2019.06.029
·论著·IGF-1与DN关系及IGF-1对糖尿病肾病临床作用
机制分析
张文川
1(IGF-1)与糖尿病肾病(DN)关系及IGF-1对DN临床作用机制影响。【摘要】目的分析胰岛素样生长因子-方法选取2014年1月至2017年8月接受治疗的2型糖尿病(T2DM)患者110例,依据患者尿蛋白排泄率(UAER)
水平及Mogensen提出DN诊断准则将患者分成3组,单纯T2DM(SDM)组32例,早期DN(EDN)组30例和临床DN(CDN)组48例,同时选取同期进行体检健康者50例为对照组,采集4组对象早晨空腹静脉血6ml,酶联免疫吸附法(ELISA)检测血清IGF-1水平,酶比色法检测血清肌酐(SCr)水平,葡萄糖氧化酶法检测空腹血糖(FPG)和餐后2h血
糖(2hPG)水平,动力学紫外法检测血清尿素氮(BUN)水平,免疫抑制比浊法检测血清糖化血红蛋白(HbA1c)水平,反
SDM、EDN及CDN组患者血清IGF-1射免疫法检测血清C肽水平,电化学发光法检测尿白蛋白水平。结果对照组、
(184.62±36.07)ng/ml、(224.58±35.70)ng/ml、(285.28±35.83)ng/ml,C肽水水平分别为(144.19±35.14)ng/ml、
(1.79±0.38)ng/ml、(1.24±0.33)ng/ml、(0.90±0.31)ng/ml,4组间对比差异均有统平分别为(3.24±0.35)ng/ml、
SDM、EDN及CDN组患CDN组2hPG水平高于对照组,差异有统计学意义(P<0.05);对照组、计学意义(P<0.05),
(99.68±8.24)mol/L、(104.19±8.20)mol/L、(137.47±8.60)mol/L,者血清SCr水平分别为(94.02±8.17)mol/L、
HbA1c分别为(4.75±0.59)%、(7.30±0.62)%、(7.05±0.58)%、(7.11±0.61)%,BUN水平分别为(5.29±1.02)mmol/L、(5.95±1.07)mmol/L、(6.79±1.14)mmol/L、(8.46±1.20)mmol/L,UAER水平分别为(7.38±2.14)μg/min、(13.02±2.68)μg/min、(162.46±2.79)μg/min、(346.25±2.95)μg/min,4组间对比差异均有统计学
UAER和IGF-1水平为正相关关系(r=16.024,P<0.05),UAER和HbA1c、意义(均P<0.05);Pearson相关分析显示,
1.085、1.752,P>0.05)。结论DN患者血清内IGF-1水平和其疾病程度有紧密FPG及2hPG没有相关性(r=0.524、
联系,可作为糖尿病患者并发糖尿病肾病前期预测指标。
【关键词】糖尿病肾病;胰岛素样生长因子-1;尿蛋白排泄率;相关性
【中图分类号】R587.1【文献标识码】A【文章编号】1002-7386(2019)06-0910-04TherelationshipbetweenIGF-1andDNandtheactionmechanismofIGF-1indiabeticnephropathyZHANGWenchuan.DepartmentofUrology,People’sHospitalofDongguanCity,Guangdong,Dongguan523000,China
【Abstract】ObjectiveToanalyzetherelationshipbetweeninsulin-likegrowthfactor-1(IGF-1)anddiabetic
nephropathy(DN)andtheeffectsofIGF-1ontheactionmechanisminDN,inordertoprovidesomereferencesforclinical
diagnosisandtreatment.MethodsAtotalof110patientswithT2DMwhoweretreatedinourhospitalfromJanuary2014toAugust2017wereenrolledinthestudy.Accordingtotheurinaryproteinexcretionrate(UAER)contentandtheDNdiagnosiscriteriaproposedbyMogensen,thesepatientsweredividedintothreegroups:simpleDMgroup(SDMgroup,n=32),earlyDNgroup(EDNgroup,group,n=48),atthesametime,50healthysubjectswhon=30)andclinicalDNgroup(CDN,
underwentphysicalexaminationinourhospitalwereenrolledascontrolgroup.TheserumlevelsofIGF-1weredetectedby
ELISA,serumcreatinine(SCr)levelsweredeterminedbyenzymecolorimetry,andthelevelsoffastingplasmaglucose(FPG)andpostprandial2-hourplasmaglucose(2hPG)weremeasuredbyglucoseoxidasemethod,andserumurealevelswere
detectedbykineticUVmethod.Moreoverthe/contentofnitrogen(BUN)wasdetectedbyimmunoturbidimetricturbidimetry,andthecontentofserumglycosylatedhemoglobin(HbA1c)wasmeasuredbyimmunoreactiveturbidimetricmethod,andtheserumlevelsofserumCpeptideweremeasuredbyrefleximmunoassay.Thelevelsofurinaryalbuminweremeasuredbyelectrochemiluminescence.ResultsTheserumlevelsofIGF-1were(144.19±35.14)ng/ml,(184.62±36.07)ng/ml,
(224.58±35.70)ng/ml,(285.28±35.83)ng/mlincontrolgroup,SDMgroup,EDNgroupandCDNgroup,respectively,andCpeptidelevelswere(3.24±0.35)ng/ml,(1.79±0.38)ng/ml,(1.24±0.33)ng/ml,(0.90±0.31)ng/ml,respectively,thereweresignificancedifferencesamongthefourgroups(P<0.05).The2hPGlevelsinCDNgroupwere(12.58±0.65)mmol/L,whichweresignificanlyhigherthanthose[(8.64±0.67)mmol/L]incontrolgroup(P<0.05).TheserumlevelsofSCrwere(94.02±8.17)mol/L,(99.68±8.24)mol/L,(104.19±8.20)mol/L,(137.47±8.60)mol/Lincontrolgroup,SDMgroup,EDNgroup,CDNgroup,respectively,andHbA1clevelswere(4.75±0.59)%,(7.30±0.62)%,(7.05±0.58)%,(7.11±0.61)%,respectively,andBUNlevelswere(5.29±1.02)mmol/L,(5.95±1.07)mmol/L,(6.79±1.14)mmol/L,(8.46±1.20)mmol/L,respectively,moreoverUAERlevelswere(7.38±2.14)g/min,
作者单位:523000
广东省东莞市人民医院肾内科
河北医药2019年3月第41卷第6期HebeiMedicalJournal,2019,Vol41MarNo.6911
(13.02±2.68)μg/min,(162.46±2.79)μg/min,(346.25±2.95)μg/min,respectively,therewerestatisticallysignificant
differencesamongthefourgrousp(P<0.05).PerasoncorrelationanalysisshowedthatUAERlevelswerepositively
however,therewasnocorrelationbetweenUAERandHbA1c,FPG,correlatedwithIGF-1levels(r=16.024,P<0.05),
2hPG(r=0.524,1.085,1.752,1inpatientswithDNarecloselyrelatedP>0.05).ConclusionTheserumlevelsofIGF-totheseverityofdisease,whichcanberedardedasanearlypredictorofdiabetesmellituscomplicatedbydiabeticnephropathy.
【Keywords】diabeticnephropathy;insulin-likegrowthfactor-1;urinaryexcretionrate;correlation
DM)是临床常见疾病,糖尿病(diabetesmellitus,
为环境与遗传因素等共同作用引发糖代谢紊乱综合
伴随我国经济快速发展,人们生活环境与饮食方式征,
临床DM患者发病率逐年升高,对患出现了较大改变,
为目前我国主要内分泌者身心健康产生了严重影响,代谢疾病
[1,2]
1)可起到重要影响。因此,1与DN本文通过分析IGF-1对DN临床作用机制影响,关系及IGF-报道如下。11.1
资料与方法一般资料
选取2014年1月至2017年8月我
依据患者UAER本院接受治疗的T2DM患者110例,
水平及Mogensen提出DN诊断准则将患者分成3组,单纯T2DM(SDM)组32例,其尿蛋白排泄率(UAER)低于20μg/min;早期DN(EDN)组30例,其UAER在20~200μg/min;临床DN(CDN)组48例,其UAER高于200μg/min;同时选取同期在我院进行体检健康者50例为对照组,4组对象临床资料状况对比差异无统计学意义(P>0.05)。见表1。
。DM本身危害不大,但它所引发各种并
发症对机体损害大,其中糖尿病肾病(diabeticDN)为DM患者最多见慢性微血管并发nephropathy,
其发生率约为30%左右,一般在DM病史较长、合症,
并高血压及血糖控制不理想男性患者中多发。若DN患者诊疗不及时最终可能会引发尿毒症而危及患者生[3,4]
。近年来,DN患者病情发生进相关研究显示,命
1(Insulin-likegrowthfactor,IGF-展胰岛素样生长因子-表1
组别SDM(n=32)EDN(n=30)CDN(n=48)对照组(n=50)χ
2(
4组临床资料状况比较
x±s)平均年龄(岁,珋
53.17±7.18
53.84±7.2254.31±7.0952.65±7.15
2.184>0.05
BMI(kg/m2,x±s)珋
23.16±2.85
22.91±2.9022.76±2.7823.10±2.83
0.967>0.05
男/女(例)19/1318/1227/2130/201.036>0.05
F)值P值
1.2
纳入与排除标准
1.2.1纳入标准:①符合WHO在1999年所编写2型糖尿病(T2DM)相关诊断准则。1.2.2
排除标准:①可能会导致患者尿蛋白排泄率
(UAER)上升相关因素,如合并心力衰竭、酮症酸中
UAER=(尿量×白蛋白学发光法检测尿白蛋白水平,
水平)/24h。1.4
统计学分析应用SPSS19.0统计软件,计量资±s表示,珋采用单因素方差分析和t检验,计数资料以x
相关性采用Pearson法,料采用精确概率法或χ检验,P<0.05为差异有统计学意义。
2结果2.1
4组血糖、C肽、IGF-1水平及病程状况4组患
1水平,C肽水平,差异有统计学意义(P<者血清IGF-2
原发性高血压、泌尿系感染及运动等;②可能对机毒、
1水平有影响因素,如合并肿瘤、肾小球疾病、体IGF-结核、手术、肝损伤、外伤、糖尿病足及其他一些分泌代
如合并各种谢类疾病等;③可能对肾功能异常有影响,
泌尿系结石、尿路梗阻、急慢性肾小球肾炎、肾灌感染、
肾盂肾炎及服用肾毒性药物等。注不足、1.3
研究方法采集4组对象早晨空腹静脉血6ml,
ELISA法检离心机2500r/min离心15min取上清液,
CDN组2hPG水平高于对照组,0.05),差异有统计学意义(P<0.05)。见表2。
2.24组肾功能相关指标状况
SDM、EDN对照组、
HbA1c、BUN、UAER比及CDN组患者血清SCr水平,
差异均有统计学意义(P<0.05)。见表3。较,
1水平。酶比色法检测血清肌酐(SCr)水测血清IGF-葡萄糖氧化酶法检测空腹血糖(FPG)和餐后2h平,
血糖(2hPG)水平,动力学紫外法检测血清尿素氮(BUN)水平,免疫抑制比浊法检测血清糖化血红蛋白(HbA1c)水平,反射免疫法检测血清C肽水平,电化
2.3
1水平正相关,UAER相关分析UAER和IGF-FPG及2hPG无相关性(P>0.05)。见表4。和HbA1c、
3讨论
1对机体内器官、血清IGF-组织和细胞类型有保
912河北医药2019年3月第41卷第6期
表2
HebeiMedicalJournal,2019,Vol41MarNo.6
x±s珋
C肽(ng/ml)1.79±0.381.24±0.33*0.90±0.31*3.24±0.35*
8.093<0.05
##△
4组血糖、C肽、IGF-1水平及病程状况比较
2hPG(mmol/L)11.52±0.7011.87±0.6912.58±0.658.64±0.677.185<0.05
7.53±0.457.70±0.49
病程(年)
7.95±3.1411.83±3.47*13.62±3.50*
-
7.422<0.05
组别SDM(n=32)EDN(n=30)CDN(n=48)对照组(n=50)
F值
P值
IGF-1(ng/ml)184.62±36.07224.58±35.70*285.28±35.83*144.19±35.14*
6.470<0.05
##△
FPG(mmol/L)
7.68±0.425.21±0.461.653>0.05
#
*P<0.05;#P<0.05;△P<0.05注:与SDM组比较,与EDN组比较,与CDN组比较,
表3
组别
SDM(n=32)EDN(n=30)CDN(n=48)对照组(n=50)
F值
P值
SCr(mol/L)99.68±8.24104.19
±8.20*
##△
4组肾功能相关指标状况比较
HbA1c(%)7.30±0.627.05±0.587.11±0.614.75±0.59*
9.347<0.05
#△
x±s珋
BUN(mmol/L)5.95±1.076.79
±1.14*
#
UAER(g/min)13.02±2.68162.46±2.79*346.25±2.95*7.38±2.14*
10.469<0.05
##△
137.47±8.60*94.02±8.17*
8.160<0.05
8.46±1.20*
5.29±1.02#△
8.052<0.05
*P<0.05;#P<0.05;△P<0.05注:与SDM组比较,与EDN组比较,与CDN组比较,
表4
因素
IGF-1HbA1cFPG2hPG
UAER水平和各指标间相关性分析
r值16.0240.5241.0851.752
P值<0.05>0.05>0.05>0.05
DN患者病理与生理进程中有IGF-1参与,这个过程内
1水平虽然上升,但还不会导致显著促患者血清IGF-则血系膜细胞的增殖影响。若患者疾病不及时诊疗,
1水平继续上升,1受体等路可经过肾脏IGF-清IGF-[17,18]
。同时高使前期DN患者进展成临床DN径调整,
1可参加到生长激素/IGF-1轴对肾小球足突水平IGF-进而发生肾小球疾病及微细胞功能与结构造成损伤,
护影响,主要发生于肾脏、内分泌、脑组织与心血管内,
同时在保持稳定内环境、调节休息与压力状况、增大祖。任伟等研究细胞潜能等方面起着主导性作用
1水平明显高于DM非肾脏者,健康者血清IGF-显示,
DM非肾病者和早期DN而早期DN者和临床DN者、
[9]
者对比则差异无统计学意义。张咏言等研究显示,
1水平明显高于T2DM者,健康者体内血清IGF-而DN
[5-7]
[8]
量白蛋白尿等;而蛋白尿也会造成肾小球超滤管发生
1滤过性增大,使IGF-对肾小管细胞功能造成影障碍,
1水平所以伴随DN患者病情发展,其机体内IGF-响,
逐渐上升。
DN患者血清内IGF-1水平和其疾病程综上所述,
可当做糖尿病患者并发糖尿病肾病前度有紧密联系,期预测指标。
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(144.19±35.14)ng/ml、(184.62±36.07)ng/ml、(224.58±35.70)ng/ml、(285.28±35.83)ng/ml,组且呈现为逐间比较差异均有统计学意义(P<0.05),
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DN患者血清内IGF-1水平上升和下列因素有联1降糖影响,1和胰岛素同首先为IGF-血清内IGF-系,
可加强吸收氨基酸、葡萄糖,并加快分泌乳源性较高,
对糖原的分解起到抑制影响,使机体胰酸及合成糖原,[11-13]
;DM患者体内生长激素/IGF-1轴岛素效果提升
1可对生长因素分泌产生抑制,血清内IGF-发生异常,
使其对胰岛素拮抗影响下降,同时胰岛素受体结合IGF-1形成胰岛素样作用,使胰岛素敏感度提升,对血
[14-16]
。所以,T2DM患者体内糖动态平衡其调节作用
IGF-1水平上升和身体自我保护作用有联系。其次
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