子宫内膜异位组织中VEGF、c-fos表达及意义

目的探讨子宫内膜异位组织中血管内皮生长因子(VEGF)、c-fos表达及意义。方法选择23例子宫内膜异位症(EMs)患者异位内膜组织23例份(异位内膜组)及在位内膜组织20例份(在位内膜组),正常子宫内膜组织21例份(对照组)。采用免疫组化SP法检测各组VEGF表达,蛋白免疫印迹法检测各组c-fos表达,并分析内膜组织VEGF与c-fos蛋白表达的关系。结果异位内膜组和在位内膜组VEGF、c-fos表达均高于对照组,P均<0.05;异位内膜组和在位内膜组VEGF、c-fos表达比较,P均>0.05。子宫内膜组织中VEGF与c-fos表达呈正相关(r=0.425,P<0.05)。结论 EMs患者在位及异位内膜组织中VEGF与c-fos表达均升高;c-fos可能通过上调VEGF表达,促进子宫内膜组织血管生成,继而引起EMs的发生。     

PTEN与VEGF在大肠癌组织中的表达及其临床意义

目的 通过对张力蛋白同源物基因(PTEN)和血管内皮生长因子(VEGF)在大肠癌中表达的研究,探讨PTEN和VEGF的相关性.方法 应用免疫组织化学S-P法检测58例大肠癌组织及20例正常大肠组织中PTEN和VEGF的表达.结果 大肠癌组织中PTEN蛋白表达显著低于正常大肠组织(P＜0.01),与淋巴结转移及Dukes分期相关(P＜0.05),而与大肠癌组织分化程度不相关(P＞0.05).VEGF在大肠癌中的表达显著高于正常大肠黏膜的表达(P＜0.01),与淋巴结转移及Dukes分期相关(P＜0.05),而与大肠癌组织分化程度不相关(P＞0.05).PTEN在大肠癌中的表达与VEGF呈负相关(P＜0.05).结论 PTEN失活或蛋白表达降低与大肠癌淋巴结转移及Dukes分期相关,且与VEGF呈负相关.联合检测PTEN、VEGF有助于提高大肠癌侵袭转移能力的评估,对大肠癌的预后判断具有重要的临床意义.     

胃癌组织PTEN、VEGF和MVD的表达及意义

目的观察胃癌组织中第10染色体缺失与张力蛋白同源的磷酸酶基因(PTEN)、血管内皮生长因子(VEGF)、微血管密度(M VD)表达,探讨其与胃癌生物学行为的关系。方法用免疫组化法检测60例胃癌标本中PTEN、VEGF、M VD的表达,分析各指标与胃癌临床病理学特征的关系。结果①胃癌组织中PTEN的阳性表达率为46.7%,VEGF为66.6%,M VD为(64±26)条/HP;PTEN的表达与患者的术后生存时间呈正相关(r=0.556,P<0.01),与肿瘤大小、分型、淋巴结转移、分期有关(P均<0.05),与VEGF的表达无相关性(r=-0.136,P>0.05);VEGF和PTEN对胃癌患者预后有不同的影响。②VEGF和M VD的表达与胃癌的大小、分型、分化程度、浸润深度、淋巴结转移、分期有关(P均<0.05);与患者的术后生存时间呈负相关(r=-0.398,P<0.05)。结论PTEN、VEGF、M VD的表达与胃癌生物学行为及预后有密切关系。     

VEGF与PTEN在胃癌组织中的表达及临床意义

应用免疫组化法检测87例胃癌组织和15例正常胃黏膜组织中的血管内皮生长因子(VEGF)与抑癌基因PTEN表达,分析二者与胃癌病理学指标的关系及其相关性.结果显示,VEGF、PTEN在胃癌组织中的表达均高于正常胃黏膜(P均<0.05),在有无侵及浆膜浸润、有无淋巴结转移者的表达均有统计学差异(P均<0.05);前者在高分化和低分化者的表达无统计学差异,后者有统计学差异(P均<0.05);两者表达呈负相关(r=-0.396,P<0.05).提示VEGF和PTEN在胃癌组织中的表达与浸润深度、淋巴结转移有关,两者表达呈负相关性.     

PTEN、mt-p53及VEGF蛋白表达与卵巢癌的生物学意义

目的探讨PTEN基因表达在上皮性卵巢癌发生、发展、转移中作用及其与mt-p53、VEGF表达的相互关系。方法利用SP法对正常卵巢(32例)、卵巢良性肿瘤(31例)、上皮性卵巢癌(74例)PTEN、mt-p53、VEGF基因蛋白的表达进行检测。结果①PTEN在上皮性卵巢癌表达缺失率及mt-p53、VEGF表达率分别高于对照组(P0.01);②PTEN在浆液性囊腺癌表达缺失率高于黏液性囊腺癌(P0.05),晚期表达缺失率高于早期(P0.01),G3表达缺失率高于G1+G2(P0.05)。③mt-p53在黏液性囊腺癌中表达率高于浆液性囊腺癌(P0.05),晚期的阳性率高于早期(P0.01);④VEGF晚期的阳性率高于早期(P0.05)。淋巴结转移阳性组高于阴性组(P0.05);⑤PTEN蛋白表达与mt-p53蛋白表达呈负相关,与VEGF表达不相关,mt-p53蛋白表达与VEGF表达呈正相关。结论 PTEN表达缺失、mt-p53、VEGF蛋白表达在上皮性卵巢癌的发生、发展、侵袭中有重要作用;PTEN、mt-p53、VEGF同时发生异常可作为评估卵巢癌恶性程度的重要生物学指标。     

宫颈癌组织中Survivin、uPA的表达及意义

目的探讨Survivin、尿激酶型纤溶酶原激活剂(uPA)在宫颈癌发生、发展中的作用。方法选择我院手术切除的宫颈癌组织标本47份(肿瘤组)、宫颈上皮内瘤样病变(CIN)标本35份(瘤变组),正常宫颈组织21份(正常组),采用免疫组化SP法检测各组Survivin、uPA的表达,分析两者表达的相关性及与宫颈癌临床病理参数的相关性。结果肿瘤组、瘤变组Survivin、uPA阳性率均明显高于正常组,肿瘤组明显高于瘤变组(P均<0.05);Survivin、uPA阳性表达均与宫颈癌临床分期、组织分化程度、有无淋巴结转移相关,宫颈癌组织中两者表达呈正相关。结论 Survivin、uPA在宫颈癌发生、发展中起重要作用。     

p53、PTEN和VEGF在胃癌组织中的表达及意义

目的探讨p53、PTEN、VEGF表达在胃癌发生、发展中的作用及其相关影响因素。方法采用免疫组织化学法检测80份胃癌组织中p53、PTEN、VEGF表达,并分析其与胃癌临床病理特征的关系。结果 p53、PTEN、VEGF在胃癌组织中的阳性表达率依次为55%(44/80)、92.5%(74/80)、52.5%(42/80);胃癌组织中p53、VEGF表达阳性率明显高于对照组,P<0.01。三者表达与性别、年龄、肿瘤分化程度、浸润情况、淋巴结转移等均无明显相关性;任意两个指标之间相关性亦不显著。结论 p53、VEGF对胃癌的诊断有一定价值;p53、VEGF、PTEN对胃癌肿瘤分化、浸润和转移等的诊断价值不大,各指标间的相关性不显著。     

PTEN,HIF-1α和VEGF在食管鳞癌组织中的表达及其意义

目的研究PTEN、缺氧诱导因子(HIF)-1α和血管内皮生长因子(VEGF)在食管鳞癌组织中的表达及其临床意义。方法通过RTPCR和免疫组化的方法定量PTEN,HIF-1α和VEGF在食管癌组织中的表达情况,并研究其与病理分期的相关性。结果 PTEN和HIF-1α多存在于食管鳞癌细胞的细胞质和内皮细胞及血管细胞质中;PTEN在T0组、原位癌(Tis)组(0.178 2±0.027 1)及T1和T2组(0.168 3±0.039 7)患者中表达量比T3和T4组(0.147 0±0.052 4)患者中的表达显著增高(P<0.05),HIF-1α表达在T3+T4组中的表达量(0.233 5±0.074 8)比Tis(0.102 9±0.045 7)及T1+T2组(0.165 6±0.032 9)及T0组患者显著增高(P<0.05),HIF-1α和VEGF的变化趋势相似,PTEN的表达与HIF-1α和VEGF的表达量同样具有显著相关性(r=-0.36、-0.68,均P<0.05),HIF-1α的表达量与VEGF表达量具有显著相关性(r=0.72,P<0.05)。结论 PTEN、VEGF与HIF-1α基因在所有食管鳞癌患者组织中的表达量与肿瘤分期具有显著相关性,预示这三种蛋白的表达可能与食管鳞癌的治疗和预后具有显著关系,为开发新的抗食管癌药物、寻找新的基因治疗靶位提供理论依据,同时为临床治疗食管癌提供新的思路。     

VEGF、uPA及uPAR与胃癌侵袭和转移的相关性

目的探讨血管内皮生长因子(VEGF)、尿激酶型纤溶酶原激活物(uPA)及其受体(uPAR)与胃癌侵袭、转移的关系及其相关性。方法采用免疫组化SP方法检测198份胃癌组织标本(胃癌组)、60份正常胃黏膜组织标本(对照组)VEGF、uPA、uPAR表达。结果与对照组比较,胃癌组VEGF呈高表达,并与浸润深度、淋巴结转移和临床分期呈正相关,与肿瘤的分化程度呈负相关,P均<0.05;胃癌组uPA和uPAR呈高表达,与病理分级、浸润深度、淋巴转移、临床分期有关,P均<0.05。胃癌组VEGF与uPA表达呈正相关,P<0.01;uPA与uPAR表达呈正相关,P<0.01。结论 VEGF、uPA、uPAR在胃癌发生、发展、侵袭和转移中起促进作用;三者相互促进,相互协调,关系密切。三者均可作为胃癌诊断和预后估计的指标及胃癌治疗的新靶点。     

卵巢上皮性癌组织中磷酸化蛋白激酶B、PTEN蛋白表达及意义

目的探讨磷酸化蛋白激酶B(p-AKT)和与张力蛋白同源的第10染色体丢失的磷酸酶基因(PTEN)在上皮性卵巢癌发生发展中的作用。方法采用免疫组织化学方法检测10份正常卵巢组织(正常组)、20份卵巢良性上皮性肿瘤(良性组)、60份卵巢上皮性癌组织(卵巢癌组)中p-AKT和PTEN表达。结果 p-AKT在正常组、良性组阳性表达率显著低于卵巢癌组;PTEN蛋白在卵巢癌组表达缺失,显著低于正常组、良性组,P均<0.01。p-AKT和PTEN蛋白表达与卵巢癌临床分期、组织学分级、淋巴结转移和远处转移显著相关(P均<0.01),与年龄、病理类型、腹水无关;两者在卵巢癌组织中的表达呈负相关(r=-0.497,P<0.001)。结论 p-AKT过表达伴随PTEN表达缺失参与了卵巢癌的发生发展。     

Inactivation of PTEN is associated with increased angiogenesis and VEGF overexpression in gastric cancer

AIM: To investigate the expression of PTEN/MMAC1/TEP1 and vascular endothelial growth factor (VEGF), their roles in biologic behavior and angiogenesis and their association in gastric cancer.METHODS: Immunohistochemical staining was used to evaluate the expression of PTEN, VEGF and microvascular density (MVD) on paraffin-embedded sections in 70 patients with primary gastric cancer and 24 patients with chronic superficial gastritis (CSG). Expression of PTEN, VEGF and MVD were compared with clinicopathological features of gastric cancer. The relationship between expression of PTEN, VEGF and MVD as well as the relationship between PTEN and VEGF expression in caner cells were investigated. RESULTS: PTEN expression significantly decreased (t= 3.98, P&lt;0.01) whereas both VEGF expression and MVD significant increased (t = 4.29 and 4.41, respectively, both P&lt;0.01) in gastric cancer group compared with CSG group. PTEN expression was significantly down-regulated (t=1.95, P&lt;0.05) whereas VEGF expression (t = 2.37, P&lt;0.05) and MVD (t= 3.28, P&lt;0.01) was significantly up-regulated in advanced gastric cancer compared with early-stage gastric cancer. PTEN expression in gastric cancer showed a negative association with lymph node metastasis (t= 3.91, P&lt;0.01), invasion depth (t= 1.95, P&lt;0.05) and age (t= 4.69, P&lt;0.01). MVD in PTEN-negative gastric cancer was significantly higher than that in PTEN-positive gastric cancer (t=3.69, P&lt;0.01), and there was a negative correlation betweenPTEN expression and MVD (γ=-0.363, P&lt;0.05). VEGF expression was positively associated with invasion depth (especially with serosa invasion, t = 4.69, P&lt;0.01), lymph node metastasis (t= 2.31, P&lt;0.05) and TNM stage (t= 3.04, P&lt;0.01). MVD in VEGF-positive gaslyic cancer was significantly higher than that in VEGF-negative gastric cancer (t=4.62, P&lt;0.01), and there was a positive correlation between VEGF expression of and MVD (y = 0.512, P&lt;0.05). VEGF expression in PTEN-negative gaslyic cancer was significantly stronger than that in PTEN-positive gastric cancer (t=2.61, P&lt;0.05), and there was a significantly negative correlation between the expression of VEGF and PTEN (γ=-0.403, P&lt;0.05).CONCLUSION: Our results imply that inactivation of PTEN gene and over-expression of VEGF contribute to the neovascularization and progression of gastric cancer. PTEN-related angiogenesis might be attributed to its up-regulation of VEGF expression. PTEN and VEGF could be used as the markers reflecting the biologic behaviors of tumor and viable targets in therapeutic approaches to inhibit angiogenesis of gastric cancers.     

Tnactivation of PTEN is associated with increased angiogenesis and VEGF overexpression in gastric cancer

AIM: To investigate the expression of PTEN/MMAC1/TEP1and vascular endothelial growth factor (VEGF), their roles in biologic behavior and angiogenesis and their association in gastric cancer.METHODS: Immunohistochemical staining was used to evaluate the expression of PTEN, VEGF and microvascular density (MVD) on paraffin-embedded sections in 70 patients with primary gastric cancer and 24 patients with chronic superficial gastritis (CSG). Expression of PTEN, VEGF and MVD were compared with clinicopathological features of gastric cancer. The relationship between expression of PTEN, VEGF and MVD as well as the relationship between PTEN and VEGF expression in caner cells were investigated.RESULTS: PTEN expression significantly decreased (t= 3.98,P＜0.01) whereas both VEGF expression and MVD significant increased (t = 4.29 and 4.41, respectively, both P＜0.01)in gastric cancer group compared with CSG group. PTEN expression was significantly down-regulated (t = 1.95,P＜0.05) whereas VEGF expression (t = 2.37, P＜0.05) and MVD (t = 3.28, P＜0.01) was significantly up-regulated in advanced gastric cancer compared with early-stage gastric cancer. PTEN expression in gastric cancer showed a negative association with lymph node metastasis (t= 3.91, P＜0.01),invasion depth (t= 1.95, P＜0.05) and age (t= 4.69, P＜0.01).MVD in PTEN-negative gastric cancer was significantly higher than that in PTEN-positive gastric cancer (t = 3.69,P＜0.01), and there was a negative correlation between PTEN expression and MVD (γ = -0.363, P＜0.05). VEGF expression was positively associated with invasion depth (especially with serosa invasion, t = 4.69, P＜0.01), lymph node metastasis (t= 2.31, P＜0.05) and TNM stage (t= 3.04,P＜0.01). MVD in VEGF-positive gastric cancer was significantly higher than that in VEGF-negative gastric cancer (t = 4.62,P＜0.01), and there was a positive correlation between VEGF expression of and MVD (γ = 0.512, P＜0.05). VEGF expression in PTEN-negative gastric cancer was significantly stronger than that in PTEN-positive gastric cancer (t = 2.61,P＜0.05), and there was a significantly negative correlation between the expression of VEGF and PTEN (γ = -0.403,P＜0.05).CONCLUSION: Our results imply that inactivation of PTEN gene and over-expression of VEGF contribute to the neovascularization and progression of gastric cancer. PTENrelated angiogenesis might be attributed to its up-regulation of VEGF expression. PTEN and VEGF could be used as the markers reflecting the biologic behaviors of tumor and viable targets in therapeutic approaches to inhibit angiogenesis of gastric cancers.     

Expression and significance of PTEN,hypoxia-inducible factor-1 alpha in colorectal adenoma and adenocarcinoma

AIM: To investigate the expression and significance of PTEN,hypoxia-inducible factor-1 alpha (HIF-1α), and targeting gene VEGF during colorectal carciogenesis.METHODS: Total 71 cases colorectal neoplasms (9 cases of colorectal adenoma and 62 colorectal adenocarcinoma)were formalin fixed and paraffin-embedded, and all specimens were evaluated for PTEN mRNA, HIF-1α mRNA and VEGF protein expression. PTEN mRNA, HIF-1α mRNA were detected by in situ hybridization. VEGF protein was identified by citrate-microwave SP immunohistochemical method.RESULTS: There were significant differences in PTEN, HIF1α and VEGF expression between colorectal adenomas and colorectal adenocarcinoma (P＜0.05). The level of PTEN expression decreased as the pathologic stage increased.Conversely, HIF-1α and VEGF expression increased with the Dukes stage as follows: stage A (0.1029±0.0457:0.1207± 0.0436), stage B (0.1656±0.0329: 0.1572±0.0514),and stage C+D (0.2335±0.0748: 0.2219±0.0803). For PTEN expression, there was a significant difference among Dukes stage A, B, and C+D, and the level of PTEN expression was found to be significant higher in Dukes stage A or B than that of Dukes stage C or D. For HIF-1α expression,there was a significant difference between Dukes stage A and B, and the level of HIF-1α expression was found to be significantly higher in Dukes stage C+D than that of Dukes stage A or B. The VEGF expression had similar results as HIF-1α expression. In colorectal adenocarcinoma,decreased levels of PTEN were significantly associated with increased expression of HIF-1α mRNA (r=-0.36, P＜0.05)and VEGF protein (r=-0.48, P＜0.05) respectively. The levels of HIF-1 were positively correlated with VEGF expression (r=0.71, P＜0.01).CONCLUSION: Loss of PTEN expression and increased levels of HIF-1α and VEGF may play an important role in carcinogenesis and progression of colorectal adenocarcinoma.     

PTEN encoding product： a marker for tumorigenesis and progression of gastric carcinoma

AIM: To detect the expression of PTEN encoding productin normal mucosa, intestinal metaplasia (IM), dysplasia andcarcinoma of the stomach, and to investigate its clinicalimplication in tumorigenesis and progression of gastriccarcinoma.METHODS: Formalin-fixed paraffin embedded specimens from184 cases of gastric carcinoma, their adjacent normal mucosa,IM and dysplasia were evaluated for PTEN protein expressionby SABC immunohistochemistry. PTEN expression wascompared with tumor stage, lymph node metastasis, Lauren'sand WHO's histological classification of gastric carcinoma.Expression of VEGF was also detected in 60 cases of gastriccarcinoma and its correlation with PTEN was concerned.RESULTS: The positive rates of PTEN protein were 100 %(102/102), 98.5 %(65/66), 66.7 % (4/6) and 47.8 %(88/184)in normal mucosa, IM, dysplasia and carcinoma of the stomach,respectively. The positive rates in dysplasia and carcinomawere lower than in normal mucosa and IM (P＜0.01).Advanced gastric cancers expressed less frequent PTEN thanearly gastric cancer (42.9 % v567.6 %, P＜0.01). The positiverate of PTEN protein was lower in gastric cancer with thanwithout lymph node metastasis (40.3 % v563.3 %, P＜0.01).PTEN was less expressed in diffuse-type than in intestinal-type gastric cancer (41.5 % v557.8 %,P＜0.05). Signet ringcell carcinoma showed the expression of PTEN at the lowestlevel (25.0 %, 7/28); less than well and moderatelydifferentiated ones (P＜0.01). Expression of PTEN was notcorrelated with expression of VEGF (P＞0.05).CONCLUSION: Loss or reduced expression of PTEN proteinoccures commonly in tumorigenesis and progression of gastriccarcinoma. It is suggested that PTEN can be an objective markerfor pathologically biological behaviors of gastric carcinoma.     

survivin和PTEN蛋白在大肠癌中的表达及临床意义

目的探讨生存素(survivin)和磷酸脂酶(PTEN)蛋白表达与大肠癌浸润转移的关系及相关性。方法应用免疫组织化学技术,检测90例大肠癌组织中survivin和PTEN蛋白表达。结果90例大肠癌中survivin和PTEN蛋白阳性表达率分别为65.6%(59/90)和46.7(42/90)。survivin高表达及PTEN低表达与大肠癌Dukes分期、浆膜浸润、淋巴结转移、肝脏转移均呈正相关(P<0.05)。大肠癌中survivin表达与PTEN表达呈负相关(r=-0.50,P<0.05)。结论survivin和PTEN表达与大肠癌浸润转移密切相关。检测survivin和PTEN蛋白表达可作为判断大肠癌预后的客观指标。     

Expression of PTEN and its correlation with angiogenesis in gastric carcinoma]

BACKGROUND/AIMS: Phosphatase and tensin homolog deleted on chromosome ten (PTEN) is a recently clarified tumor suppressor gene located in 10q23.3. Alterations of this gene are associated with tumor progression and unfavorable outcome in various human cancers. Recently, PTEN has a possible role in angiogenesis by modulating angiogenic factor including vascular endothelial growth factor (VEGF). The aim of this study was to investigate the roles of PTEN and VEGF status for angiogenesis in human gastric cancer. METHODS: We conducted an immunohistochemical investigation of PTEN and VEGF expression in 90 cases of paraffin section obtained from gastric cancer patients undergone surgical treatment. RESULTS: Negative expression of PTEN and positive expression of VEGF in gastric cancer tissues, were demonstrated in 40.0% and 77.8% of cases, respectively. However, no significant correlation was found between PTEN, VEGF expression and various clinicopathological parameters. PTEN expression did not correlate significantly with VEGF expression (p=0.301). High microvessel density (MVD) was significantly associated with lymph node metastasis and poor survival (p=0.014, 0.011, respectively). The mean MVD value of PTEN negative tumors was 90.4+/-43.0 and significantly higher than that of PTEN positive tumors (p=0.028). The mean MVD value of VEGF positive tumors was 86.4+/-6.7 and significantly higher than that of VEGF negative tumors (p=0.002). The mean MVD value of PTEN negative and VEGF positive tumors was 98.0+/-42.2, and significantly higher than those of the others. CONCLUSIONS: These results suggest that loss of PTEN expression may play a critical role in tumor progression and metastasis by stimulating tumor angiogenesis in human gastric cancer.     

利用组织芯片技术研究PTEN和VEGF在胃癌中的表达及意义

目的研究PTEN和血管内皮生长因子（vascular endothelial growth factor，VEGF）在胃癌中的表达及临床意义。方法应用组织微阵列仪制作97孔胃癌组织芯片（tissue microarray）。用免疫组织化学S—P法检测PTEN、VEGF在72例胃癌和25例正常胃黏膜中的表达。结果胃癌组织中PTEN蛋白阳性表达率显著低于正常胃黏膜（45．8％ VS 100％，P〈0．01）；VEGF的阳性表达率显著高于正常胃黏膜（75％VSl2％，P〈0．01），PTEN在胃癌中的表达与VEGF呈负相关（P〈0．01）。PTEN、VEGF的表达在中高分化腺癌分别为68．8％、62．5％（P〉0．05），在低分化及未分化腺癌分别为27．5％、85．0％（P〈0．05）；伴淋巴结转移者分别为31．6％、86．9％（P〈0．05），无淋巴结转移者分别为61．8％、61。8％（P〉0．05）；临床病理分期Ⅰ＋Ⅱ期分别为57．1％、61．9％（P〉0．05），Ⅲ＋Ⅳ期分别为30．0％、93．3％（P〈0．05）；与性别、年龄、肿瘤大小和组织分型无显著差异（P〉0．05）。结论PTEN失活或蛋白表达降低、VEGF的高表达与胃癌临床病理特征和生物学行为有密切关系。PTEN在低分化或未分化以及伴淋巴结转移和临床Ⅲ＋Ⅳ期胃癌中的表达与VEGF呈负相关。联合检测PTEN、VEGF对胃癌的恶性程度及预后判断具有一定的临床参考意义。应用组织芯片大规模高效检测临床组织样本是可行的，具有快速、准确、方便经济的特点。     

ⅣC、HA与类风湿性关节炎继发间质性肺病的相关性研究

目的检测类风湿关节炎继发间质性肺病(RA-ILD)患者血清层粘连蛋白(LN)、三型前胶原N端肽(PⅢNP)、四型胶原(ⅣC)、透明质酸(HA)的水平并探究其与各指标的关联性。方法选取2018年3月-2020年12月本院收治的RA-ILD患者65例,非ILD的RA患者(N-RA-ILD)及健康人各40例,化学发光法检测血清LN、PⅢNP、ⅣC、HA水平,并探究其与RA-ILD各指标相关性。结果三组患者LN水平无显著差异(P>0.05)。RA-ILD及N-RA-ILD组PⅢNP水平无差异(P>0.05),但均高于健康组(P<0.05)。RA-ILD组ⅣC、HA水平显著高于N-RA-ILD组及健康组(P<0.001)。N-RA-ILD组ⅣC水平与健康组无差异(P>0.05),HA水平高于健康组(P<0.05)。RA-ILD组患者初治病程、激素应用人数、关节压痛数、DAS28评分、RF高于N-RA-ILD组(P<0.05)。Logistic结果显示初治病程长及RF、ⅣC、HA水平高是RA-ILD发病的危险因素(P<0.05)。ⅣC与年龄、IgG正相关(P<0.05),与激素和/或DMARDS应用负相关(P<0.05)。HA与年龄、CRP、DAS28评分正相关(P<0.05)。结论ⅣC、HA、RF高、初治病程长是RA-ILD发病的危险因素,激素和/或DMARDS可能会延缓RA-ILD发病及进展。     

沉默miR-216a对四氯化碳诱导的肝纤维化模型大鼠的保护作用及机制研究

目的 探究沉默miR-216a对四氯化碳(CCl4)诱导的肝纤维化模型大鼠的作用及机制.方法 从50只大鼠中随机选取10只作为正常组,其余40只采用腹腔注射含CCl4的橄榄油溶液方法构建肝纤维化模型大鼠.将造模成功的30只大鼠随机分为模型组、对照组和沉默组,每组各10只,对照组尾静脉注射含空载质粒的腺病毒,沉默组尾静脉...     

葡萄胎受精类型与恶变的关系探讨

目的探讨葡萄胎受精类型与恶变的关系。方法应用激光捕获显微切割技术(LCM)获取150例病理学诊断为葡萄胎的病理蜡块组织中的滋养细胞,提取DNA;用16个位点复合微卫星序列PCR方法对DNA进行分析,明确受精类型;通过追踪患者刮宫后血绒毛膜促性腺激素(HCG)变化判断葡萄胎是否恶变。对受精类型和恶变进行相关性分析。结果成功提取126例葡萄胎标本DNA液。其中86例DNA完全来自父方的遗传学完全性葡萄胎中恶变15例,DNA来自双亲的单倍体卵子双精子受精的遗传学部分性葡萄胎40例中恶变1例,二者恶变率相比P<0.05。遗传学完全性葡萄胎中空卵单精子受精的纯合性葡萄胎56例,恶变11例,空卵双精子受精的杂合性葡萄胎30例,恶变4例。纯合、杂合葡萄胎恶变率相比P>0.05。结论 DNA完全来自父方的遗传学完全性葡萄胎与DNA来自双亲的遗传学部分性葡萄胎相比易于恶变,前者恶变发生与其纯、杂合性无关。