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1.
目的 探讨绝经后妇女血清基质金属蛋白酶-9(MMP-9)和基质金属蛋白酶抑制因子-1(TIMP-1)与骨密度(BMD)之间的关系.通过观察绝经后妇女不同骨密度条件下MMP-19、TIMP-1浓度的变化,探讨两者在骨质疏松症(OP)中的作用,为临床OP诊断与干预治疗提供依据.方法 选择绝经后妇女80例.采用Challenge双能x线骨密度仪(DXA)测量腰椎(L2-L4)侧位和左侧髋部(股骨颈、大转子、Ward三角区)6个骨骼区域的骨密度(BMD).分为正常对照组(骨密度正常组,21例)、低骨量组(20例)、骨质疏松组(23例)和严重骨质疏松组(骨质疏松骨折组,16例),对各组进行身高、体重等常规检查并用酶联免疫吸附试验(ELISA法)测定各组血清MMP-9和TIMP-1的浓度.结果 绝经后女性血清MMP-9水平随骨密度的降低呈现升高趋势.以骨质疏松骨折组为著;低骨量组、骨质疏松组TIMP-1水平与对照组比较没有统计学意义;正常对照组、低骨量组、骨质疏松组MMP-9与TIMP-1的比率依次升高,致使MMP-9与TIMP-1的比率失调.结论 绝经后妇女血清MMP-9水平升高及MMP-9与,TIMP-1的比率失调可能为绝经后骨质疏松症发生的重要影响因素.  相似文献   

2.
目的测定绝经后妇女血清基质金属蛋白酶-10(MMP-10)和金属蛋白酶抑制物-1(TIMP-1)水平,并探讨其与骨密度数值和骨代谢指标的关系。方法选取武汉地区120名48岁至65岁绝经后女性,用酶联免疫吸附试验(ELISA)测定血清MMP-10、TIMP-1以及整合素(Integrin)α2β1、雌二醇(E2)、骨保护蛋白(OPG)、骨保护蛋白配体(OPGL)的水平,计算MMP-10/TIMP-1比值,用双能X线吸收法(DEXA)测定腰椎正位,股骨颈,华氏区和大粗隆的骨密度(BMD)。同时,按照WHO标准将入选女性分为骨密度正常组、低骨量组和骨质疏松组。结果①骨质疏松组中血清MMP-10检测结果(644.25±19.21)pg/ml高于正常组(347.08±21.41)pg/ml(P0.05),而TIMP-1检测结果(134±116)μg/L低于正常组(146±130)μg/L。②骨质疏松组中血清MMP-10与骨密度、血清E2、OPGL和Integrinα2β1测定结果存在明显负相关性(P0.05),和OPG和CTX存在明显正相关性(P0.05)。结论血清MMP-10和MMP-10/TIMP-1比值与绝经后骨质疏松症妇女骨密度和骨代谢指标具有关联性。两者可能通过整合素途径参与绝经后骨质疏松症骨代谢高转换过程。  相似文献   

3.
目的探讨绝经后妇女血清基质金属蛋白酶-3(MMP-3)和抑制因子(TIMP-1)水平及其与骨密度和骨桥蛋白的关系。方法将102名绝经后妇女用酶联免疫吸附试验(ELISA)测定的血清MMP-3、TIMP-1和骨桥蛋白(OPN)水平,计算MMP-3/TIMP-1比值,用双能X线吸收法(DEXA)测定腰椎正位,股骨颈,Ward’s区和大粗隆的骨密度(BMD)。结果①骨质疏松组中MMP-3的数值(154±111)ng/ml高于正常组(124±103)ng/ml,而TIMP-1的数值(134±116)μg/L低于正常组(146±130)μg/L,血清OPN数值(57±19)ng/ml明显高于正常组(26±10)ng/ml。②骨质疏松组中MMP-3与MMP-3/TIMP-1比值和血清OPN存在明显正相关性(P<0.05),MMP-3/TIMP-1比值与骨密度存在明显负相关性(P<0.05),TIMP-1和Ward’s区骨密度存在明显正相关性(P<0.05),和血清OPN存在明显负相关性(P<0.05),校正年龄和体重指数后,以上数据相关性增高(P<0.05)。结论绝经后骨质疏松症妇女MMP-3/TIMP-1比值与骨密度和OPN具有关联性,MMP-3/TIMP-1比值升高可能为绝经后骨质疏松症伴随骨代谢转换过程增快的表现。  相似文献   

4.
戴燚  沈霖 《中国骨质疏松杂志》2007,13(4):229-232,252
目的探讨绝经后妇女血清基质金属蛋白酶2(MMP-2)和抑制因子(TIMP-2)水平及其与绝经骨质疏松症指标的关系。方法将202名48~65岁绝经后妇女分为正常组、低骨量组和骨质疏松组,用酶联免疫吸附试验(EIJSA)测定的血清MMP-2、TIMP-2以及骨保护蛋白(OPG)、骨保护蛋白配体(OPGL),计算MMP-2/TIMP-2和OPG/OPGL比值,用双能X线吸收法(DEXA)测定腰椎正位、股骨颈、华氏区和大粗隆的骨密度(BMD)。结果①骨质疏松组中血清MMP-2的数值(1392±121)μg/L高于正常组(1123±141)μg/L(P〈0.05),而TIMP-2的数值(44.3±36.2)ng/ml低于正常组(47.8±30.2)ng/ml。②骨质疏松组中血清MMP-2和MMP-2/TIMP-2比值与骨密度、血精OPGL数值存在明显负相关性(P〈0.05),和OPG和OPG/OPGL比值存在明显正相关性(P〈0.05),TIMP-2和华氏区骨密度和OPG存在明显正相关性(P〈0.05)。结论血清MMP-2和MMP-2/TIMP-2比值与绝经后骨质疏松症妇女骨密度和骨代谢指标OPG、OPGL和OPG/OPGL比值具有关联性。血清MMP-2水平升高和MMP-2/TIMP-2比值降低可能为绝经后骨质疏松症伴随骨代谢转换过程增快的表现。  相似文献   

5.
目的通过检测不同骨量状态下绝经后初诊2型糖尿病(type 2 diabetes mellitus,T2DM)女性患者血清中25羟维生素D[25-hydroxyvitamin D,25(OH)D]、基质金属蛋白酶2(matrix metalloproteinases-2,MMP-2)水平,初步探讨它们在T2DM合并骨质疏松发生发展过程中的作用及意义。方法收集2016年10月至2017年10月我院内分泌科住院的绝经后T2DM患者130例,据骨密度分3组:T2DM骨量正常组(A组45例)、T2DM骨量减少组(B组40例)、T2DM骨质疏松组(C组45例),收集同期我院体检中心年龄、性别相匹配的健康体检者为正常对照组(NC组50例)。采用酶联免疫吸附(ELISA)法测定所有受试者血清MMP-2。Pearson相关分析绝经后T2DM合并骨质疏松(osteoporosis,OP)患者血清MMP-2与各指标的相关性;Logistic回归分析绝经后T2DM患者骨密度的影响因素。结果 (1)A组与B组比较,25(OH)D、PINP、HDL-C水平明显升高,而MMP-2、β-CTX、BGP、Hb A1c、HOMA-IR明显降低,差异有统计学意义(P0.05),FBG、LDL-C、TC、TG、FINS、病程比较,差异无统计学意义(P0.05);(2)C组与NC组比较,MMP-2、FBG、Hb A1c、HOMA-IR、LDL-C、TG、TC、β-CTX水平明显升高,而25(OH)D、HDL-C、PINP、BGP明显降低,差异有统计学意义(P0.05)。结论绝经后T2DM合并骨质疏松患者血清中MMP-2、β-CTX、BGP水平明显升高,而25(OH)D、PINP水平明显减低,提示高水平的MMP-2及低水平的25(OH)D可能共同参与了绝经后T2DM合并OP的发生发展。  相似文献   

6.
[目的]探讨绝经后妇女骨代谢指标,血清骨钙素(bone gamma-carboxyglutamic-acid-containing proteins,BGP)及骨特异性碱性磷酸酶(bone alkaline phosphotase,BAP),尿羟脯氨酸/尿肌酐(urinary hydroxyproline/creatinine,HYP/Cr)及尿脱氧吡啶啉/尿肌酐(urinary deoxypyridinoline/ereatinine,DPD/Cr)的动态变化规律,以及骨代谢指标、骨折风险、骨密度之间的相关性.[方法]采用WHO骨折危险性评估工具FRAX软件和亚洲人骨质疏松自我筛查工具(OSTA指数)2种方法评估骨折风险;检测晨起血清BGP、BAP,尿HYP/Cr、DPD/Cr;双能X线骨密度仪检测绝经后妇女常见骨折部位骨密度(bone mineral density,BMD).[结果](1)随着年龄增长,绝经后妇女骨折风险呈升高趋势,L2-4、L-FN、Ward's三角、L-distal forearm等4个部位的BMD呈降低趋势;BGP、BAP在51 ~ 55岁阶段有明显上升,随后呈下降趋势;(2)骨代谢指标与骨折风险相关性:BGP与2种骨折风险评估结果均呈负相关(P<0.01),BAP、HYP/Cr、DPD/Cr与2种骨折风险评估结果均呈正相关(P<0.01);(3)骨代谢指标与BMD相关性:BGP与4个部位的骨密度呈负相关(P<0.01),以L2-4最为显著(r值=-0.739).BAP、HYP/Cr、DPD/Cr与4个部位骨密度均呈正相关(P<0.01),其中BAP与Ward's三角BMD高度相关(r值=0.729),HYP/Cr、DPD/Cr与L2-4部位BMD高度相关(r值分别为0.536、0.751);(4)骨密度与骨折风险相关性:4个部位的骨密度与2种方法评估的骨折风险呈正相关(P<0.01),L-FN、L2-4的BMD与FRAX、OSTA指数风险分级均有显著相关性.[结论]绝经后妇女的四项骨代谢指标与FRAX评估结果、OSTA指数、骨密度均有相关性,监测BGP、BAP、HYP/Cr、DPD/Cr等指标对此人群骨质疏松症的早期防治具有一定意义.  相似文献   

7.
本文通过对60~70岁绝经后妇女20例健康对照组、28例骨质疏松组、18例骨质疏松伴骨折组骨密度及尿吡啶啉(Pyridinoline,PYD)、血清Ⅰ型前胶原肽(Carboxy\|terminalpropeptideoftypeIprocollagen,PICP)的测定,经过比较分析结果显示46例骨质疏松患者的骨密度显著低于健康对照组,18例骨质疏松伴骨折组患者的股骨颈部位的骨密度显著低于28例骨质疏松无骨折组.46例骨质疏松患者的尿PYD、血PICP均显著高于健康对照组.由此提示绝经后妇女测量骨密度尤其是股骨上端的骨密度,结合骨吸收及骨形成的生化指标尿PYD、血PICP,能更好地预测骨质疏松及提示骨折发生的危险性.  相似文献   

8.
目的探讨绝经后妇女骨质疏松性椎体骨折与腰椎骨密度的关系。方法选择骨质疏松性椎体骨折的绝经后妇女23例为骨折组,无椎体骨折的25例绝经后骨质疏松妇女为对照组。两组的年龄、绝经年限、身高、体重、体重指数差异无显著性,均行胸腰椎正侧位X线摄片。用双能X线吸收仪(DXA)测量的腰椎(L2-4)前后位骨密度(BMD)、骨矿含量(BMC)和T值。结果骨折组BMD、BMC和T值均低于对照组(P〈0.01)。结论腰椎BMD降低与绝经后妇女的骨质疏松性椎体骨折相关。绝经后骨质疏松妇女应重视BMD变化,预防椎体骨折的发生。  相似文献   

9.
目的探讨绝经女性骨密度与骨代谢生化指标血清抗酒石酸酸性磷酸酶5b的关系。方法 选取我科2007 -2009年人院的绝经女性115例,采用DPX2L型双能X线骨密度检测仪,测定腰椎 (L2 ~L4)及股骨上端[包括股骨颈(NECK)、华氏三角(Ward)及股骨粗隆(TROCH)]的骨密度 (BMD)值;根据Tscore值将人选者分为骨量正常组(48例)和骨质疏松组(67例)。并选未绝经女性 30例,骨密度检查正常者为对照组,采用酶联免疫法测定各组血清骨特异性碱性磷酸酶(ALP)、血清 骨钙素(BGP)、血清抗酒石酸酸性磷酸酶(TRAP-5b)的浓度,并比较三组骨代谢生化指标的变化,并 对BMD与各项骨代谢指标进行相关性分析。结果绝经女性骨质疏松组各部位BMD值均低于骨量 正常组(P<0. 05);骨质疏松组血中ALP、BGP、TRAP-5b浓度均显著高于骨量正常组(P <0. 05 ),骨 量正常组血清ALP、BGP、TRAP-5b浓度显著高于对照组,差异有统计学意义(P < 0. 05 )。对照组各部 位的骨密度值与骨代谢生化指标无明显相关性(P>0.05),在绝经女性骨质疏松组中,ALP和TRAP- 5b与腰椎(L2 ~L4)及股骨颈部位的BMD有一定的关系,呈负相关(r分别为-0. 248、- 0. 364、- 0.434、-0.386 )。结论绝经女性骨质疏松为高转换型,血清ALP、BGP、TRAP-5b浓度变化可反映 骨代谢活动,绝经女性BMD的降低与骨转换率升高有关。检测代谢指标有助于早期防治骨质疏松症 (OP)。  相似文献   

10.
目的通过对川崎病(KD)患儿血清基质金属蛋白酶(MMP)-9及其抑制物组织基质金属蛋白酶抑制物(TIMP)-1水平的测定,探讨MMP-9 及TIMP-1与川崎病发病及其冠状动脉并发症发生发展的关系.方法采用酶联免疫吸附检测(ELISA)法对30例KD无冠状动脉病变(CAL)及9例KD合并CAL患儿急性期和恢复期血清MMP-9、TIMP-1水平进行检测,并与15例其他发热性疾病患儿及18例正常健康儿童进行对照.结果急性期KD有CAL组和无CAL组血清MMP-9、TIMP-1、MMP-9/TIMP-1分别是896.2±81.7、342.6±43.1、2.5±0.6和284.3±40.9、389.5±20.8、0.8±0.2,均较发热对照组及正常对照组(87.9±18.9、251.5±13.0、0.3±0.1和24.6±2.8、90.0±4.2、0.3±0.02)明显增加(P<0.01),且有CAL组的MMP-9及MMP-9/TIMP-1较无CAL组增高更为显著(P<0.01);恢复期KD无CAL组患儿血清MMP-9、TIMP-1、MMP-9/TIMP-1降至正常水平(26.4±7.6、95.6±5.8、0.2±0.1),而有CAL组患儿虽较急性期亦明显下降(220.0±28.3、258.9±15.0、0.9±0.3),但仍然明显高于正常对照组(分别P<0.01和P<0.05),发热对照组血清MMP-9及TIMP-1水平亦较正常对照组明显增高(P<0.01),但其MMP-9/TIMP-1与正常对照组比较差异无显著性(P>0.05).结论 MMP-9及TIMP-1参与了川崎病的病理生理过程,血清MMP-9升高及MMP-9/TIMP-1持续失衡可能与川崎病冠状动脉炎及动脉瘤的形成有关.  相似文献   

11.
乳腺癌中HER2基质金属蛋白酶-2和9的表达及其相互关系   总被引:12,自引:10,他引:2  
目的 研究乳腺癌中HER2基因、基质金属蛋白酶 (MMP) 2、基质金属蛋白酶(MMP) 9的表达情况、与临床病理指标之间的关系以及它们之间的相互关系。方法 采用免疫组织化学的方法对 114例乳腺癌组织标本中HER2、MMP 2、MMP 9的表达情况进行检测。结果 乳腺癌组织中HER2、MMP 2、MMP 9的表达阳性率分别是 46.49%、78.95 %、68.42 %。HER2表达与淋巴结转移相关。原发肿瘤 >2cm或有淋巴结转移的患者中 ,其MMP 2、MMP 9表达明显高于原发肿瘤≤ 2cm或无淋巴结转移的患者 (P <0 .0 5 ) ,且MMP 2表达与临床分期相关 (P <0 .0 5 )。HER2表达与MMP 2、MMP 9表达相关 (P <0 .0 5 )。结论 HER2、MMP 2、MMP 9的阳性表达提示乳腺癌有较强的浸润转移能力 ,这 3种蛋白的表达在乳腺癌浸润转移过程中可能起协同作用。  相似文献   

12.

Background

Moyamoya disease is a chronic occlusive cerebrovascular disease with unknown etiology characterized by an abnormal vascular network at the base of the brain, which can manifest both as ischemic stroke and as cerebral hemorrhage. It was also reported that the patients with moyamoya disease are more vulnerable to cerebral hyperperfusion such as postoperative hemorrhagic complication after extracranial-intracranial bypass surgery despite its low flow revascularization. However, the underlying mechanisms of its pathologic angiogenesis and the occurrence of hemorrhage are undetermined. Excessive degradation of the vascular matrix by MMPs, proteolytic enzymes that degrade all the components of extracellular matrix, can lead to instability of the vascular structure and can thereby cause bleeding. The MMPs also play an important role in tissue remodeling including angiogenesis in both physiologic and pathologic condition.

Methods

We examined the serum levels of MMP-2 and MMP-9 in 16 cases with definitive moyamoya disease by enzyme-linked immunosorbent assay and compared them with those from healthy controls.

Results

The serum MMP-9 level was significantly higher in moyamoya disease (40.18 ng/mL) than in healthy controls (13.75 ng/mL, P = .0372). There was no difference in serum MMP-2 level between moyamoya disease (646.65 ng/mL) and healthy control (677.60 ng/mL). Immunohistochemistry on the surgical specimens showed significant increase in MMP-9 expression within the arachnoid membrane of moyamoya disease.

Conclusion

The increased expression of MMP-9 may contribute to pathologic angiogenesis and/or to the instability of the vascular structure and could thereby cause hemorrhage in moyamoya disease.  相似文献   

13.
Nakamura H  Sato G  Hirata A  Yamamoto T 《BONE》2004,34(1):48-56
Matrix metalloproteinase (MMP)-13 (an interstitial collagenase also called collagenase 3) is involved in degradation of extracellular matrix in various tissues. Using immunohistochemistry and Western blotting, we investigated localization of MMP-13 in rat tibia, to clarify the role of MMP-13 in bone resorption. MMP-13 reactivity was mainly seen on bone surfaces under osteoclasts, and in some osteocytes and their lacunae near osteoclasts. However, immunoreactivity was not seen in chondrocytes or osteoclasts. MMP-13 was also localized on cement lines in the epiphysis. In the growth plate erosion zone, perivascular cells showed MMP-13 reactivity. Immunoelectron microscopy revealed that MMP-13 was localized on the bone surfaces, under the ruffled borders and some clear zones of osteoclasts. Gold-labeled MMP-13 was closely associated with collagen fibrils. Gold labeling was also detected in Golgi apparatus of osteocytes adjacent to osteoclasts and bone lining cells. Western blotting showed that MMP-13 was mainly associated with mineralized bone matrix. These findings suggest that MMP-13 synthesized and secreted by osteoblast-lineage cells is localized under the ruffled borders of osteoclasts. MMP-13 may play an important role in degradation of type I collagen in bone matrix, acting in concert with cathepsin K and MMP-9 produced by osteoclasts. MMP-13 in perivascular cells may be involved in removal of cartilage matrix proteins such as type II collagen and aggrecan.  相似文献   

14.
Background: It is recognized that matrix metalloproteinase‐3 (MMP‐3) is abundantly expressed in active rheumatoid synovium, and that serum level of MMP‐3 is a useful marker for diagnosis of rheumatoid arthritis and for evaluation of prognosis in joint destruction. Little is known about serum MMP‐3 levels in haemodialysis (HD) patients, and thus, the association between serum MMP‐3 and dialysis‐related amyloidosis (DRA) has yet to be elucidated. Methods: Serum levels of MMP‐3 were measured by enzyme immunoassay in 150 HD patients, 90 without DRA and 60 with DRA, before HD. Simple regression analysis was performed to investigate the relationship between serum level of MMP‐3 and clinical parameters, including age, HD duration, C‐reactive protein and β2 microglobulin (BMG). Results: Serum levels of MMP‐3 were significantly higher in HD patients with DRA than in HD patients without DRA (258.2 ± 118.1 vs 201.5 ± 98.4 pg/mL, P = 0.0017), and both levels were significantly higher than those of healthy subjects (45.6 ± 13.4 pg/mL, P < 0.0001). Serum MMP‐3 levels significantly correlated with serum levels of BMG (r = 0.197, P = 0.0164) and HD duration (r = 0.168, P = 0.0427). Moreover, serum MMP‐3 levels significantly correlated with serum BMG levels in HD patients without DRA (r = 0.341, P = 0.0012), but not in HD patients with DRA. Conclusion: Our results suggest that matrix metalloproteinase activity increases in HD patients, which may be associated with BMG and DRA.  相似文献   

15.
目的 探讨基质金属蛋白酶(MMP)-13在骨巨细胞瘤(GCT)中的表达及其与Jaffe病理学分级和Campanacci放射学分级之间的关系.方法 根据Jaffe病理学分级和Campanacci放射学分级,分别将45例骨巨细胞瘤患者分为Ⅰ、Ⅱ、Ⅲ组,采用逆转录-聚合酶链反应(RT-PCR)方法检测骨巨细胞瘤MMP-13 mRNA的表达,分析其相关性.结果 Jaffe病理学分级Ⅰ组中MMP-13 mRNA比值为0.58±0.06,Ⅱ组为0.65±0.04,Ⅲ组为0.62±0.05,组间MMP-13 mRNA比值的差异无统计学意义(P>0.05).Campanacci放射学分级Ⅰ组中MMP-13 mRNA比值为0.42±0.05,Ⅱ组为0.63±0.07,Ⅲ组为0.85±0.09,组间MMP-13 mRNA比值的差异有统计学意义(P<0.01),呈正相关(P<0.05).结论 MMP-13可作为判断骨巨细胞瘤Campanacci放射学分级的指标之一.  相似文献   

16.
Matrix metalloproteinases (MMPs) and their tissue inhibitors play important roles in the wound-healing process. An imbalance in the expression of these molecules is thought to contribute to the failure of chronic ulcers to heal. We investigated whether a mitogenic bovine whey extract enriched with growth factors modulated the expression and activity of MMP-2 and -9, and the tissue inhibitor of MMP-2 (TIMP-2) in chronic leg ulcers. Wound fluids and biopsies were collected from chronic leg ulcer patients whose ulcers were treated topically for 4 weeks with placebo or mitogenic bovine whey extract at concentrations of 2.5, 10, and 20 mg/mL. The levels of MMP-2 and -9 in wound fluid samples was assessed by gelatin zymography and showed a decrease in active MMP-2 in the 2.5 and 10.0 mg/mL mitogenic bovine whey extract-treated ulcers compared with placebo (p<0.05). Immunohistochemical analysis of ulcer biopsies for MMP-2, -9, and TIMP-2 expression showed a reduction in the number of MMP-2-positive dermal fibroblasts in the mitogenic bovine whey extract-treated ulcers compared with pretreatment biopsies (p<0.05) that persisted over the course of the study. In contrast, a transient increase in the number of MMP-9- and TIMP-2-positive cells was observed in mitogenic bovine whey extract treated ulcer biopsies compared with pretreatment levels (p<0.05). These results show that topical application of mitogenic bovine whey extract was able to modulate the expression of MMP-2, -9, and TIMP-2 in chronic leg ulcers and that its constituent growth factors may have the potential to redress the proteolytic imbalance observed in nonhealing chronic ulcers.  相似文献   

17.
金莉 《浙江创伤外科》2012,17(3):297-299
目的:探讨血清基质金属蛋白酶-2(MMP-2)和CA125在子宫内膜癌患者手术前后变化及其临床意义。方法选择来本院就诊的43例手术治疗的子宫内膜癌患者,在手术前后检测血清基质金属蛋白酶-2和CA125变化,及在不同病理分期患者中的变化。结果子宫内膜癌患者血清中MMP-2和CA125水平者明显增高。在子宫内膜癌患者中,手术前血清中MMP-2和CA125水平在Ⅲ期、Ⅳ期比I期明显增高,而Ⅱ期与Ⅰ期相比无统计学差异,血清中MMP-2和CA125有逐渐增高的趋势:手术后子宫内膜癌患者血清中CA125水平明显降低.在Ⅲ期和Ⅳ期患者中降低尤为明显;手术前血清中MMP-2和CA125水平在G2、G3期比G1期明显增高,随着病理分级的增高.血清中MMP-2和CA125有逐渐增高的趋势;而在手术后血清中MMP-2和CAl25明显降低。结论血清中MMP-2和CA125水平变化与子宫内膜癌患者疗效判定、评价预后、复发的早期诊断具有很高的临床价值。  相似文献   

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