血清IGF—1、IGFBP—1，GH水平与糖尿病慢性并发症关系的研究

目的：揭示胰岛素样生长因子－1,胰岛素样生长因子结合蛋白－1,生长激素对糖尿病慢性并发症的发生,发展的影响。方法：测定20例健康对照者和62例2例糖尿病,10例1例糖尿病患者的胰岛素样生长因子－1（IGF－1）,胰岛素样生长因子结合蛋白－1（IGFBP－1）,生长激素（GH）及血浆胰岛素（INS）,C肽（C－P）,糖化血红蛋白（HbAlc)指标,结果：（1）IGF－1水平,1型糖尿病患者显著低于对照组（P＜0．05）,2型糖尿病患者显著低于对照组（P＜0．05）,（2）IGFBP－1水平,1型糖尿病患者显著高于对照组（P＜0．05）,2型糖尿病肥胖型伴高胰岛素血症者显著低于对照组（P＜0．05）;（3）GH水平,1型糖尿病患者显著高于对照组（P＜0．05）,2型糖尿病与对照组无显著差异（P＞0．05）,（4）合并糖尿病肾病及视网膜病变患者IGF－1水平均较对照组增高（P＜0．05）,（5）IGF－1水平与HbAlc间呈负相关（P＜0．01 2型r=-0.62 1型r=-0.73)。结 论：IGF－1,IGFBP－1,GH水平的检测对糖尿病慢性并发症,特别是微血管病变的发生,发展有重要的临床意义。     

胰岛素样生长因子对克罗恩病患者的临床意义

目的:研究我国克罗恩病(CD)患者胰岛素样生长因子水平(IGF)的变化及临床意义.方法:收集54例CD患者的临床资料,并根据临床严重程度分为轻(20例)、中(18例)、重(16例)3组.采用酶标化学发光免疫分析的方法分别检测轻、中、重各组CD患者规范性治疗前后的外周血IGF-I和胰岛素样生长因子结合蛋白-3(IGFBP3)的结果,50例健康人群作为对照组,分析外周血IGF-I和IGFBP3对CD的临床意义.结果:(1)中重度CD患者外周血IGF-I值分别为104.78μg/L±16.28μg/L和77.50μg/L±12.46μg/L,IGFBP3值分别为2.83mg/L±1.02mg/L和1.93mg/L±0.65mg/L,均较正常对照组明显减低,并随着病情加重呈进行性下降(均P<0.05).轻度组IGF-I及IGFBP3值较对照组也有所下降,但无统计学差异;(2)中重度CD经治疗有效后IGF-I值分别为122.75μg/L±27.14μg/L和102.31μg/L±29.24μg/L,IGFBP3值分别为3.85mg/L±0.92mg/L和3.35mg/L±1.35mg/L,均较治疗前明显升高(P<0.0...     

宫内发育迟缓与胰岛素样生长因子及其结合蛋白关系的研究

为探讨宫内发育迟缓（IUGR）的发生机制,检测了86例新生儿脐血胰岛素样生长因子－1（IGF－1）、胰岛素样生长因子结合蛋白－3（IGFBP－3）水平,并分析上述指标变化与胎儿期生长的关系。将86例新生儿分为两组,IUGR（即小于胎龄儿）组22例,适于胎龄儿（AGA）组64例,采用竞争性放射免疫分析法（RIA）测定两组脐血IGF－1水平,非竞争性免疫放射分析法（IRMA）测定IGFBP－3水平。结果显示,与AGA组相比,IUGR组脐血IGF－1和IGFBP－3水平显著降低（P＜0．001）;IGF－1水平随胎龄及出生体重增加而增加（P＜0．01）;IGFBP－3水平与胎龄及出生体重呈相关（P＜0．01）;IGF－1与IGFBP－3呈正相关（P＜0．01）。认为IUGR与IGF－1及其结合蛋白密切相关,不论何种原因引起的IUGR,其脐血IGF－1、IGFBP－3水平均低,IGF－1水平下降与IGFBP－3下降相伴随;脐血IGF－1、IGFBP－3水平与胎龄及出生体重呈正相关,随着胎龄的增加和出生体重的增长,IGF－1、IGFBP－3水平不断升高。     

血清胰岛素样生长因子及其结合蛋白诊断儿童生长激素缺乏症的价值

为了解血清胰岛素样生长因子1（IGF－1），胰岛素样生长因子结合蛋白－3（IGFBP－3）浓度与生长激素缺乏症（GHD）患儿生长激素（GH）激发试验中血清生长激素峰值的关系，以确定血清IGF－1，IGFBP－3浓度诊断GHD的价值，为其代替GH激发试验提供依据，选择GHD患儿62例（男39例，女23例）为GHD组，60例健康儿童（男38例，女22例）为对照组。分别用放射免疫分析（RIA）法，免疫放射分析（IRMA）法检测GHD组血清IGF－1，IGFBP－3浓度，同时被GH激发试验，测定血清GH峰值，并比较其与IGF－1，IGFBP－3的关系，测定对照组血清IGF－1，IGFBP－3。结果显示，GHD组血清IGF－1，IGFBP－3均显著低于对照组（t分别为3.116,11.579,p均＜0．01）；GHD组血清IGF－1，IGFBP－3浓度与GH激发试验中的GH峰值呈显著正相关（r分别为。331，0。347，P均＜0．01）；GHD组血清IGF－1，IGFBP－3降低的阳笥率分别为97．58％，98．38％，与激发试验的阳性率（100％），比较无统计学意义（x^2分别为.3074,2.033,P均＞0．05）。表明血清中IGF－1，IGFBP－3浓度检测对诊断GHD有重要价值，认为检测血清中IGF－1，IGFBP－3浓度可以替代GH激发试验。     

IGF—I、IGFBP与肺癌

胰岛素样生长因子－I（IGF－I）具有类似胰岛素的代谢作用和促有丝分裂作用。IGF－I的生物学活性受胰岛素样生长因子结合蛋白（IGFBP，包括IGFBP－1－6）的调节。近年的研究表明测量肺部各种标本的IGF－I、IGFBP的水平有助于肺癌的早期诊断、病理分期，IGF－I抑制剂和IGFBP－3，6增强剂可望成为肺癌的有用的治疗手段。     

贝那普利对肝纤维化大鼠胰岛素样生长因子-I受体的影响

目的研究血管紧张素转换酶抑制剂贝那普利对大鼠肝纤维化模型的疗效,以及对其肝组织胰岛素样生长因子-1受体（IGF—IR）的影响。方法取Wistar雄性大鼠42只随机分为3组,正常对照组12只,模型组15只,贝那普利治疗组15只。制备四氯化碳诱导的大鼠肝纤维化模型,同时应用贝那普利灌胃,共8周。对肝组织进行苏木精伊红染色及马松三色染色,观察各组肝纤维化的程度,并测定血清丙氨酸氨基转移酶（ALT）水平,采用SABC免疫组织化学方法检测大鼠肝组织中IGF—IR的表达水平。结果贝那普利治疗组的肝纤维化程度明显较同期模型组轻（P〈0．05）;与对照组相比,模型组体重降低（P〈0．05）及血清ALT升高（P〈0．05）,IGF-IR在肝组织中表达明显增多（P〈0．05）,贝那普利治疗组IGF—IR表达减少（P〈0．05）。结论贝那普利可改善肝纤维化程度,可能与肝组织IGF—IR的表达减少有关。     

胰岛素样生长因子-Ⅰ及其受体在胎鼠生长受限时的表达及川芎嗪的干预作用

目的探讨胎鼠生长受限（FGR）时大鼠胰岛素生长因子Ⅰ（邮编：030001（IGF—Ⅰ）及其受体（IGF-ⅠR）表达的变化及其在组织和细胞中的定位。并探讨川芎嗪注射液对FGR的治疗作用。方法采用烟酒混合因素建立大鼠FGR模型，部分孕鼠予川芎嗪注射液8mg／kg治疗，3组均于孕20日剖宫取出胎鼠，比较3组胎鼠的体重、鼻臀长度、体重系数。并采用免疫组化法测孕晚期胎盘和胎鼠肝脏中IGF—Ⅰ和IGF—ⅠR的表达。结果实验组胎鼠体重、身长较对照组明显降低（P〈0．05），实验组胎盘IGFⅠ及胎鼠肝脏IGF—ⅠR表达明显降低（P〈0．05）。而胎盘IGF—ⅠR及胎鼠肝脏IGF—Ⅰ表达则明显提高（P〈0．05），川芎嗪注射液治疗效果明显。结论IGF—Ⅰ及其受体水平与FGR发病相关，川芎嗪注射液可能通过直接（或间接）促进IGFs的合成和分泌，促进胎儿宫内发育。     

血清胰岛素样生长因子浓度与稳定型心绞痛及急性心肌梗死的关系

目的 通过分析急性心肌梗死患者血清胰岛素样生长因子Ⅰ和Ⅱ浓度的变化。来探讨其与稳定型心绞痛及其与急性心肌梗死之间的关系。方法 选取急性心肌梗死患者23例、稳定型心绞痛患者20例和对照组健康体检者20例，动态测定各组血清胰岛素样生长因子Ⅰ和Ⅱ的浓度。结果 稳定型心绞痛组血清胰岛素样生长因子Ⅰ和Ⅱ浓度明显低于对照组（P〈0．05），急性心肌梗死组胰岛素样生长因子Ⅰ和Ⅱ浓度显著高于稳定型心绞痛组和对照组（P〈0．05），稳定型心绞痛组与对照组差异无显著性（P〉0．05）。急性心肌梗死组中血清胰岛素样生长因子Ⅰ浓度和胰岛素样生长因子Ⅱ浓度峰值分别出现于第24h和72h。血清胰岛素样生长因子Ⅱ浓度与血清胰岛素样生长因子Ⅰ浓度呈正相关（r=0．642，P〈0．01）。它们与心肌酶谱无相关性（P〉0．05）。结论 在稳定型心绞痛组中胰岛素样生长因子Ⅰ和胰岛素样生长因子Ⅱ浓度明显低于对照组。急性心肌梗死组中胰岛素样生长因子Ⅰ和胰岛素样生长因子Ⅱ水平明显高于稳定型心绞痛组和对照组。     

胰岛素-胰岛素样生长因子代谢轴在胎儿生长发育中的作用

目的探讨胰岛素-胰岛素样生长因子（IGF）代谢轴在胎儿宫内生长发育中的作用。方法连续收集266名单胎足月新生儿基本资料,采用放免法检测脐血胰岛素和IGF水平。结果（1）脐血胰岛素水平与出生体重、BMI、身长和胎盘重量均呈正相关（P〈0．01）。（2）脐血IGF水平与出生体重、BMI、身长和胎盘重量均呈正相关（P〈0．01）。（3）脐血胰岛素水平和IGF水平呈显著正相关（P〈0．01）。结论脐血胰岛素、IGF水平可作为评价胎儿宫内生长发育情况的参考指标。     

锌对胎儿生长发育影响的临床研究

为探讨锌与胎儿生长发育的关系,将66例新生儿按出生体重分为小于胎龄儿组（SGA组,出生体重小于同胎龄正常标准体重的第10百分位）及适于胎龄儿组（AGA组,出生体重在同胎龄正常标准体重的第10－90百分位）,分别测定两组脐血中锌含量及胰岛素生长因子－1（IGF－1）,胰岛素样生长因子结合蛋白－3（IGFBP－3）水平。结果显示,SGA组脐血锌含量及IGF－1、IGFBP－3水平均显著降低,与AGA组比较有显著差异（P均＜0．01）;锌浓度随出生体重和胎龄的增加而增加（P均＜0．01）,与IGF－1,IGFBP－3水平呈正相关（P均＜0．01）。认为胎儿发育与体内锌含量密切相关,缺锌可导致胎儿宫内发育迟缓,胎儿母亲孕期应适量补锌。     

Clinical significance of serum IGF-Ⅰ,IGF-Ⅱ and IGFBP-3 in liver cirrhosis

AIM: To investigate the relationship between insulin-likegrowth factor-Ⅰ, -Ⅱ (IGF-Ⅰ and IGF-Ⅱ), IGF-binding protein 3 (IGFBP-3) and Child-Pugh score in patients with liver cirrhosis, and to search for potential clinical markers of liver function. METHODS: Forty-four patients with advanced liver cirrhosis of viral origin were divided into 3 groups according to severity of cirrhosis (Child-Pugh score) and 38 healthy subjectsserved as controls. Serum levels of IGF-Ⅰ, IGF-Ⅱ and IGFBP3 were measured by immunoradiometric assay.RESULTS: Serum IGF-Ⅰ, IGF-Ⅱ and IGFBP-3 levels weresignificantly lower in patients with cirrhosis than in controls, and serum concentrations of IGF-Ⅰ, IGF-Ⅱ and IGFBP-3 were associated with the severity of liver dysfunction, and dropped sharply during the progression of liver failure. Among these 3 parameters, serum IGF-Ⅱ was the most sensitive and effective indicator for liver dysfunction. Concentrations of IGF-Ⅰ＜30 ng/mL, IGF-Ⅱ＜200 ng/mL and IGFBP-3 ＜6 ng/mL implied a negative prognosis for patients with liver cirrhosis. CONCLUSION: Serum IGF-Ⅰ, IGF-Ⅱ and IGFBP-3 may provide a new dimension in the assessment of liver dysfunction. Combined detection of serum IGF-Ⅰ, IGF-Ⅱ and IGFBP-3 with Child-Pugh score is more effective in predicting prognosis than Child-Pugh score alone.     

胰岛素样生长因子在肾透明细胞癌患者血液中表达及其临床意义

目的 探讨胰岛素样生长因子(IGF)Ⅰ、Ⅱ和胰岛素样生长因子结合蛋白(IGFBP)3、5在肾透明细胞癌患者外周血液中的表达及其临床意义.方法 选择2007年5月至2009年12月在我院手术治疗的肾透明细胞癌患者40例(肾癌组),对照组为同期的肾积水患者16例,采用酶联免疫吸附法(ELISA)检测两组患者血清标本中IGF-Ⅰ、Ⅱ和IGFBP3、5的水平.结果 肾癌组术前血清IGF-Ⅰ、Ⅱ和IGFBP3、5分别为985.7μg/L、1154.0μg/L和46.6 μg/L、9.6 μg/L,术后分别为431.4μg/L、632.6μg/L和26.7 μg/L、6.7μg/L差异均有统计学意义(P值分别为0.001、0.009、0.001、0.002);肾积水组IGF-Ⅰ、Ⅱ和IGFBP3、5水平术前术后比较,差异无统计学意义(P＞0.05).结论 IGF-Ⅰ、Ⅱ和IGFBP3、5在肾透明细胞癌患者的血液中呈现高表达,IGF-Ⅱ具有临床诊断意义.

Abstract：

Objective To observe the expressions of serum insulin-like growth factor (IGF)- Ⅰ ,Ⅱ and IGF binding protein (IGFBP) 3, 5 and to explore the clinical significances in patients with clear cell carcinoma of kidney. Methods Enzyme-linked immunosorbent assay (ELISA) methods were adopted to examine serum expressions of IGF-Ⅰ , Ⅱ and IGFBP 3, 5 in 40 cases with clear cell carcinoma of kidney (renal carcinoma group) and 16 cases with hydronephrosis (control group) from May 2007 to December 2009. Results IGF- Ⅰ , Ⅱ and IGFBP 3,5 in renal carcinoma showed higher expressions before operation (985. 7 μg/L, 1154.0 μg/L,46.6 μg/L and 9.6 μg/L, respectively)than after operation (431.4 μg/L, 632.6 μg/L, 26.7 μg/L, and 6.7 μg/L, respectively, all P＜0. 05 ～0.01). There were no significant differences in those indexes between pre- and post- operation in control group (P＞ 0. 05). Conclusions There are high expressions of serum IGF-Ⅰ , Ⅱ and IGFBP 3, 5 in renal carcinoma patients, and IGF- Ⅱ has clinical significance in diagnosis.     

Alcohol-induced modulation of the insulin-like growth factor system in early chick embryo cranial tissue

BACKGROUND: Fetal alcohol exposure has been shown to reduce fetal/embryonic growth. The insulin-like growth factor (IGF) system plays a major role in normal growth and development of the embryo. The purpose of this study was to gain a better understanding of the effects of alcohol (ethanol, EtOH) exposure on the insulin-like growth factors, their binding proteins, and receptors during embryonic development. METHODS: After the administration of either alcohol or chick Ringer's solution to individual eggs at the start of incubation, type-1 IGF receptors, IGF-binding proteins (IGFBPs) as well as IGF-1 and IGF-2 levels were measured in chick embryo craniums on days 5, 6, 7, and 8 of incubation. RESULTS: Levels of the IGF-1 receptor protein were not significantly different between treatment groups on any day studied. In EtOH-treated embryos, the 30 kDa IGFBP levels were significantly higher than vehicle levels on days 5 and 6. On day 6, IGF-1 levels were significantly lower in the alcohol-treated embryos compared with levels in vehicle-treated embryos of the same age. By day 8 of incubation, IGF-1 levels were significantly higher and the 30 kDa IGFBP levels were significantly lower in the alcohol-treated group compared with vehicles. These results indicate an initial EtOH-associated reduction in the amount of IGF-1 available to bind to its receptor (bioavailability), followed by increased IGF-1 bioavailability by day 8. CONCLUSIONS: The elevated IGFBP levels and reduced IGF-1 levels on days 5 and 6 of incubation are congruent with an overall reduction in the bioavailability of IGF-1 during this period and correlate with the decreased embryo weight observed in the alcohol-treated embryos. An increased bioavailability of IGF-1 observed by day 8 may represent a rebound effect and is associated with increases in ornithine decarboxylase activity, a marker of increased growth.     

Serum Sex Hormones,IGF-1, and IGFBP3 Exert a Sexually Dimorphic Effect on Lean Body Mass in Aging

BACKGROUND: Endogenous and exogenous sex hormones affect changes in body composition during aging via independent and dependent effects on the growth hormone/insulin-like growth factor-1 (GH/IGF-1) axis and associated binding proteins (BP). METHODS: Fasting serum IGF-1, IGFBP3, testosterone, estrone, and sex hormone binding globulin were analyzed in 48 women on hormone replacement (HRT) (unopposed oral estrogen, HRT+, 74.0 +/- 6 years), 135 women not on HRT (HRT-, 77.3 +/- 7 years), and 128 healthy men (men, ). Total lean body mass (LBM) and total fat were measured by dual energy X-ray absorptiometry. RESULTS: Total LBM decreased with age in all groups (p = .05). LBM was greater, and IGF-1, IGFBP3, and testosterone were lower in HRT+ versus HRT- women (p = .02, p = .01, p = .04, and, respectively). LBM in men was positively related to IGF-1 (p = .02) and testosterone (p < .01), whereas LBM was associated with IGFBP3 (p = .04) and total fat (p < .001) in female HRT+ and total fat (p < .01) in HRT- women. IGF-1 decreased with age in men and HRT- women (p < .01) but did not decrease in HRT+ women. Total fat significantly decreased across age (p < .05). Controlling for age and HRT, the rate of decrease in fat was slower in men versus women (p = .02). IGFBP3 decreased in all groups across age (p < .01), and the ratio of IGF-1 to IGFBP3 decreased faster in men compared to HRT+ and HRT- women (p = .02). CONCLUSIONS: Our data indicate divergent influences of sex steroids, IGF-1, and IGFBP3 on age-related changes in LBM in healthy elderly men and women.     

Evidence of different actions of testosterone, estradiol, FSH, and LH on the growth axis.

To study the possible role of sexual hormones, Testosterone (T), Estradiol (E2), follicle-stimulating hormone (FSH), and luteinizing hormone (LH) on the growth axis, we examined the correlations between the sex, growth hormone (GH), insulin-like growth factor-1 (IGF-1), insulin-like growth factor binding protein 3 (IGFBP3), FSH, LH, T and E2, in growth retarded children ranging in age from 7 to 13 yr. All hormones were measured by Radioimmunoassay (RIA) in a pool of aliquots of samples obtained every 20 min over 12 h (overnight) in each child. Multivariate statistical analysis was performed. We have found: a) Thai only FSH concentrations were significantly higher in girls than in boys; b) A positive correlation between T-IGF-1; T-IGFBP3; FSH-LH; FSH-IGF-1; FSH-IGFBP3, LH-IGF-1, LH-IGFBP3 the sex-FSH; and the sex-IGFBP3 c) A high positive correlation between plasmatic E2 and IGF-1/IGFBP3 ratio (an index of free, active IGF-1). We concluded that the sex, FSH, LH, T and E2 influence the growth axis. The sex through IGFBP3; LH, FSH, and T through IGF1 and IGFBP3; E2 through the IGF-1/IGFBP3 ratio, an index of active IGF-1.     

慢性心力衰竭患者血清胰岛素样生长因子-1及其结合蛋白的变化及意义

目的 通过对慢性心力衰竭患者血清中胰岛素样生长因子（insulin-like growth factor,IGF）-1及其相关结合蛋白的浓度测定,研究IGF-1及其相关结合蛋白对慢性心力衰竭的影响.方法 选取2012年6月至2013年12月江西省人民医院心内科慢性心力衰竭患者184例,按纽约心脏病协会心功能分级分为3组（心功能Ⅱ级组、Ⅲ级组和Ⅳ级组）,并选取正常人群63例作为对照组,测定其血清总IGF-1,游离IGF-1（Free IGF-1）、IGF结合蛋白（insulin-like growth factor-binding protein,IGFBP）-1,IGFBP-3浓度.对各组数据进行统计学分析,比较各组之间的血清总IGF-1,Free IGF-1、IGFBP-1,IGFBP-3浓度差异.结果 心功能Ⅳ级组血清总IGF-1,FreeIGF-1,IGFBP-3浓度明显高于心功能Ⅲ级组,心功能Ⅲ级组血清总IGF-1,Free IGF-1,IGFBP-3浓度明显高于心功能Ⅱ级组,差异有统计学意义（P＜0.01）.结论 血清IGF-1浓度随着慢性心力衰竭患者心功能变差而升高,说明IGF-1对患者心功能的恢复可能有明显的促进作用.     

Association analysis of insulin-like growth factor-1 axis parameters with survival and functional status in nonagenarians of the Leiden Longevity Study

Reduced insulin/insulin-like growth factor 1 (IGF-1) signaling has been associated with longevity in various model organisms. However, the role of insulin/IGF-1 signaling in human survival remains controversial. The aim of this study was to test whether circulating IGF-1 axis parameters associate with old age survival and functional status in nonagenarians from the Leiden Longevity Study. This study examined 858 Dutch nonagenarian (males≥89 years; females≥91 years) siblings from 409 families, without selection on health or demographic characteristics. Nonagenarians were divided over sex-specific strata according to their levels of IGF-1, IGF binding protein 3 and IGF-1/IGFBP3 molar ratio. We found that lower IGF-1/IGFBP3 ratios were associated with improved survival: nonagenarians in the quartile of the lowest ratio had a lower estimated hazard ratio (95% confidence interval) of 0.73 (0.59 – 0.91) compared to the quartile with the highest ratio (p_trend=0.002). Functional status was assessed by (Instrumental) Activities of Daily Living ((I)ADL) scales. Compared to those in the quartile with the highest IGF-1/IGFBP3 ratio, nonagenarians in the lowest quartile had higher scores for ADL (p_trend=0.001) and IADL (p_trend=0.003). These findings suggest that IGF-1 axis parameters are associated with increased old age survival and better functional status in nonagenarians from the Leiden Longevity Study.     

溃疡性结肠炎患者血C反应蛋白活性与尿白蛋白含量的变化及其临床意义

目的　探讨血C反应蛋白 (CRP)活性与尿白蛋白 (AU )含量在溃疡性结肠炎 (UC)患者病情活动性与严重性评价中的意义。方法　采用试剂盒与免疫散射比浊法检测 2 5例缓解期UC患者、3 2例活动期UC患者及 3 0例对照组的血浆CRP活性及AU含量 ,并对活动期患者行肠镜及病理组织学检查 ,评价病情轻重程度。结果　活动期患者组血CRP活性和AU含量显著高于缓解期组和对照组 (P <0 .0 1) ,且二者与UC病情活动性、病情分型均呈显著正相关 ,与内镜表现分级呈中度正相关 ,与病理组织学分级无相关性。结论　血CRP活性和AU含量可作为评价UC患者病情活动性及严重程度的良好指标     

溃疡性结肠炎360例临床特征分析

近年溃疡性结肠炎（UC）的发病率明显升高,明确临床特征有助于其诊断。目的：探讨UC的临床特征。方法：收集2008年7月-2011年7月西京医院收治并确诊的活动期UC患者的临床资料,回顾性分析其临床特征。结果：共收治活动期UC患者360例,男女之比1．25：1;平均就诊年龄40．5岁。疾病严重程度以轻中度UC多见（84．4％）。病变累及以左半结肠和直肠、乙状结肠多见;18例病变呈节段性分布,其余均为连续分布。本组患者以腹泻、黏液脓血便、腹痛为主要临床表现,内镜下黏膜弥漫性充血、水肿、糜烂和溃疡,44例伴有肠外表现。多数患者的白细胞、ESR和CRP水平增高。52例患者合并并发症。349例患者接受内科治疗,病情明显缓解。结论：UC患者以中青年男性多见,内镜下病变以左半结肠和直肠、乙状结肠多见,常见并发症为结肠假性息肉。UC确诊主要根据临床表现、结肠镜检查、病理学检查,其中结肠镜检查可明确病变部位、范围、程度以及肠腔有无狭窄或癌变,有助于临床病情分期,对指导临床治疗方案的选择具有重要意义。