首页 | 本学科首页   官方微博 | 高级检索  
相似文献
 共查询到20条相似文献,搜索用时 46 毫秒
1.
p53蛋白在慢性宫颈炎及宫颈癌中的表达   总被引:1,自引:0,他引:1  
采用免疫组织化学SP法分别对57例宫颈癌、8例慢性宫颈炎P53蛋白表达情况进行了检测,并以11例正常宫颈鳞状上皮组织作对照。结果:P53蛋白在宫颈癌、慢性宫颈炎中的表达率分别为78.9%、37.5%。正常对照均为阴性。P53蛋白的表达率在宫颈癌病理Ⅲ级中明显高于病理Ⅰ、Ⅱ级;在溃疡型中的表达率明显低于菜花型、结节型。提示:P53蛋白在慢性宫颈炎中的表达与细胞增殖率升高有关;P53蛋白的表达率不仅与  相似文献   

2.
肾母细胞瘤P53基因的免疫组化研究   总被引:1,自引:0,他引:1  
为了解P53基因在肾母细胞瘤中的表达,采用ABC免疫组织化学方法,对56例肾母细胞瘤石蜡包埋的标本进行检测。结果:56例肾母细胞瘤标本中13例P53蛋白表达阳性,预后不良组织类型P53蛋白是性率,显著高于预后好级组织类型;有转移肿瘤P53蛋白表达阳性率显著高于无转移肿瘤。  相似文献   

3.
采用免疫组织化学LSAB法,对54例肾细胞癌作了增殖细胞核抗原(PCAN)和P53蛋白表达的研究。结果表明:PCNA阳性反应计算出的增殖指数(PI)在肾细胞癌Ⅰ、Ⅱ级与Ⅲ、Ⅳ级之间有显著性差异;P53蛋白阳性10例(18.3%),而正常对照组无1例阳性;PCNA所表示的PI与P53蛋白阳性表达呈正相关,认为PCNA的表达是评估肾细胞癌预后的有用指标,P53蛋白可作为肾细胞癌的一个恶性依据。  相似文献   

4.
本文通过免疫组织化学技术对38例滋养细胞肿瘤组织P53基因蛋白进行了检测,试图探讨P53基因与滋养细胞肿瘤的关系。结果38例滋养细胞肿瘤中(葡萄胎10例、恶性葡萄胎10例、绒癌18例),恶葡阳性表达20%(2/10),绒癌阳性表达22.2%(4/18),有3例为高表达,10例良性葡萄胎均为阴性。结果提示:P53基因与滋养细胞肿瘤的生物学行为有密切关系。随着临床的进展,高表达增加。P53的检测可望成  相似文献   

5.
采用免疫组织化学ABC法检测了40例人卵巢浆液性囊腺癌、10例浆液性囊腺瘤组织中的肿瘤相关基因P16、P53蛋白表达。结果:P16蛋白表达阳性率在肿瘤分化Ⅰ、Ⅱ、Ⅲ级中,分别为16.67%、33.33%和52.63%。40例浆液性囊腺癌P16蛋白表达均为阴性。P16蛋白阳性表达与肿瘤组织学分级无明显关系(P>0.05)。40例同组病例中,P53蛋白总阳性表达率为60%,10例浆液性囊腺瘤P53蛋白均呈阴性表达。低分化浆液性囊腺癌的P53阳性表达率(75%),高于肿瘤分化高者(35.71%)。两者差异有显著性(P<0.05)。Ⅰ与Ⅱ、Ⅱ与Ⅲ级肿瘤间,P53蛋白总阳性表达率高于P16蛋白的阳性表达率  相似文献   

6.
目的:探讨P53 基因表达与大肠癌临床病理之间的关系;方法:应用SP免疫组织化学方法检测了53 例大肠癌标本。结果:P53 阳性表达与患者年龄、肿瘤部位和大小及分化程度无关(P< 0.05),而与肿瘤浸润深度、淋巴结转移显著相关(P< 0.01)。结论:P53基因表达的肿瘤浸润程度重,易发生淋巴结转移。  相似文献   

7.
(1)目的 探讨P53蛋白表达与皮肤基底细胞癌的临床及组织学特征之间的关系,以期阐明皮肤基底细胞癌的发病机制,为临床诊疗提供理论依据。(2)方法 42例经常规石蜡包埋皮肤基底细胞癌标本,镜检确定组织学类型,应用免疫组织化学S-P法检测P53蛋白表达。(3)结果 42例皮肤基底细胞癌中,18例P53蛋白表达阳性,阳性表达率为42.85%;9例强阳性,强阳性表达率为21.40%。P53蛋白表达与皮肤基  相似文献   

8.
应用免疫组织化学技术对14例正常宫颈,20例宫颈良性病变,41例宫颈癌组织标本进行P53蛋白过度表达的检测,以了解其与宫颈癌发生的关系。结果正常宫颈和宫颈良性病变中均无P53蛋白过度表达,宫颈癌中P53蛋白过度表达阳性率为26.8%,表明P53蛋白过度表达可能与宫颈癌的发生有关,其在宫颈癌中表达阳性率不同,表明宫颈癌的发生是多因素共同作用的结果。  相似文献   

9.
目的:检测宫颈鳞状细胞癌组织中细胞外基质金属蛋白酶诱导因子(EMMPRIN)、基质金属蛋白酶-2(MMP-2)的表达情况,并分析其与临床病理特征的关系。方法:采用免疫组织化学SP法检测19例正常宫颈上皮组织、25例宫颈上皮内瘤样变(CIN)组织(CINⅠ级6例,CINⅡ级9例,CINⅢ级10例)、61例宫颈鳞状细胞癌组织(〈40岁20例,≥40岁41例;临床分期:Ⅰ期32例,Ⅱ期29例;组织学分级:Ⅰ~Ⅱ级48例,Ⅲ级13例;有淋巴结转移25例,无淋巴结转移36例)中EMMPRIN和MMP-2蛋白的表达。结果:宫颈鳞状细胞癌及CIN组织中EMMPRIN、MMP-2蛋白的阳性表达率均高于正常宫颈上皮组织的阳性表达率(P均〈0.05)。宫颈鳞状细胞癌组织中EMMPRIN、MMP-2蛋白的阳性表达率与临床分期及淋巴结转移有关(P均〈0.05),与患者年龄及组织学分级无关(P均〉0.05)。宫颈鳞状细胞癌组织中EMMPRIN与MMP-2蛋白的表达无相关性(P〉0.05)。结论:EMM-PRIN、MMP-2蛋白的异常表达在宫颈鳞状细胞癌的发展恶化、侵袭和转移中起重要作用。  相似文献   

10.
对51例膀胱移行细胞癌,9例正常膀胱粘膜及8例膀胱慢性炎组织,应用抗P53蛋白单克隆抗体进行S-P免疫组化染色。结果表明:非癌组织均无P53蛋白阳性表达,膀胱移行细胞癌阳性表达率为49.02%,且随分化程度的不同,阳性表达率有差异,0~Ⅰ级癌P53蛋白阳性表达率为19.05%,Ⅱ~Ⅲ级癌P53蛋白阳性表达率为70.00%,两者之间差异有显著性(P<0.05)。此外,有淋巴结转移的移行细胞癌(P53癌基因蛋白阳性表达率为69.5%)与无淋巴结癌转移者(P53癌基因蛋白阳性表达率为32.14%)两组之间差异有高度显著性(P<0.01)。上述结果提示检测P53癌基因蛋白的表达情况可能成为膀胱移行细胞癌分级、估计淋巴结转移及预后的一项重要参考指标  相似文献   

11.
目的分析3 476名已婚妇女宫颈检查和宫颈刮片结果,了解宫颈糜烂与宫颈刮片巴氏分级的关系。方法回顾性分析该院2003~2008年行妇科检查的3 476名已婚妇女宫颈检查和宫颈刮片的结果。结果年龄与宫颈糜烂程度有关联(P0.01),≤30岁组的宫颈糜烂发病率最高(68.0%);年龄与宫颈刮片的巴氏分级有关联(P0.05),≥61岁组的巴氏分级ⅡB级及其以上发病率最高(4.9%);不同宫颈糜烂程度与宫颈刮片的巴氏分级有关联(P0.01),重度宫颈糜烂组的巴氏分级ⅡB级及其以上发病率最高(17.3%)。结论宫颈糜烂与随年龄增长患病率逐渐降低;宫颈癌发病率与年龄、宫颈糜烂程度存在正相关。积极治疗宫颈糜烂,针对高龄妇女进行定期检查,有利于早期发现宫颈癌。  相似文献   

12.
Tian W  Han X  Liu B  Li Q  Hu L  Li ZY  Yuan Q  He D  Xing YG 《中华医学杂志(英文版)》2010,123(21):2969-2973
Background Theoretic advantages of cervical disc arthroplasty include preservation of normal motion and biomechanics in the cervical spine, and reduction of adjacent-segment degeneration. The clinical and radiographic effects of cervical disc arthroplasty in short term have been ascertained. The aim of this study is to research the data of mid-term results.Methods In this prospective cohort study, 50 patients who underwent cervical disc arthroplasty from December 2003 to January 2006 were enrolled. There were 39 patients who received 1-level disc arthroplasty, and 11 patients received 2-level disc arthroplasty, with an average age of 50.9 years (range from 29 to 73). The median follow-up was 41.85months (range from 36.00-55.63 months). Patients were followed prospectively with respect to their symptoms,neurologic signs, and radiographic results.Results The median value of Japanese Orthopaedic Association (JOA) score was 14.0 before surgery, and 16.5 at the most recent follow-up (P 〈0.01). The median value of the recovery rate of the JOA score was 92.2%. The preoperative range of motion (ROM) at the indexed level was (10.40±4.97)°, which has significantly correlated with the most recent follow-up ROM which was (8.56±4.76)° (P 〈0.05, r=0.33). The ROM at the operative level at the most recent follow-upwas greater than the value at the 3-month follow-up of (7.52±3.37)° (P 〈0.05). The preoperative functional spinal unit (FSU) angulation was (-0.96±6.52)°, which was not significantly correlated with that of the most recent follow-up value of (-2.65±7.95)° (P 〈0.01, r=0.53). The preoperative endplate angulation was (2.61±4.85)°, which had no significant correlation with that of the most recent follow-up value of (0.71±6.41)° (p 〉0.05).Conclusions The clinical and radiographic results of cervical disc arthroplasty are good in mid-term follow-up. The normal range of motion of the operated level and the biomechanics in the cervical spine are well preserved.  相似文献   

13.
背景:颈椎人工间盘置换术作为一种新的技术,近年来在脊柱外科领域广泛应用。它具有保留手术节段活动,保留置换节段的生物力学环境,减少临近节段退变等优点。尽管颈椎人工间盘置换的短期临床效果已经得到了肯定,但是中期的临床效果尚缺乏报道。 材料与方法:对2003年12月到2006年1月行颈椎人工间盘置换术的50例患者进行了随访。其中单节段颈椎人工间盘置换39例,双节段颈椎人工间盘置换11例。随访时年龄29-73岁(平均年龄50.9岁)。随访时间36.0-55.63个月,呈偏态分布,中位数为41.85个月,四分位数间距为8.71个月。。记录患者症状、神经系统体征及影像学情况。 结果:JOA评分中位数术前为14.0,末次随访时为16.5,两者间差异有统计学意义(P<0.01),JOA评分改善率中位数为92.17%。末次随访置换节段过屈过伸活动度8.56°±4.76°与术前置换节段过屈过伸活动度10.4°±4.97°呈正相关并有统计学意义(P<0.05,r=0.33)。末次随访时置换节段活动度与术后三个月7.52°±3.37°相比略有增加,并有统计学意义(P<0.05)。术前中立位置换节段的曲度-0.96°±6.52°与末次随访时中立位置换节段的曲度-2.65°±7.95°有相关性(r=0.53,P<0.01),差异无统计学意义(P>0.05)。术前中立位置换节段的终板间夹角为2.61°±4.85°与末次随访时置换节段的中立位假体终板间夹角0.71°±6.41°无相关性,差异无统计学意义(P>0.05)。 结论:Bryan人工间盘置换术3年随访的疗效是满意的,颈椎置换节段的生理运动范围及生物力学环境得到了较好的保持。  相似文献   

14.
颈神经及其相关结构的应用解剖   总被引:3,自引:0,他引:3  
对第1、2颈神经、整个颈神经后支及相关结构(包括特殊颈椎、神经通道)作详细的调查、测量和追踪。横行分离每一块椎骨,纵行剖开每一椎体和椎弓。阐明了环椎、枢椎的解剖特点和第1、2颈神经的特殊通道结构。用解剖学观点解释了颈椎病神经根症状的临床表现和颈病机理。  相似文献   

15.
宫颈糜烂267例肉眼所见与病理诊断结果对比分析   总被引:4,自引:1,他引:4  
杜丽敏  陆春雪  赵巍 《中国现代医学杂志》2006,16(18):2807-2809,2811
目的 调查普通妇科医生临床肉眼拟诊的宫颈糜烂经组织学检查确诊后的疾病构成。方法 对普通妇科医生临床肉眼拟诊宫颈糜烂的患者267例行阴道镜下活检病理检查明确诊断,根据确诊结果统计其疾病构成。结果 此267例肉眼拟诊的宫颈糜烂的疾病构成为:宫颈炎28.1%(75例),宫颈上皮内瘤样病变(CIN)Ⅰ39.0%(104例),CINⅡ13.5%(36例),CINⅢ14.6%(39例),宫颈癌3.4%(9例),其他1.5%(4例)。结论 肉眼拟诊的宫颈糜烂中宫颈病变的比例很高,仅凭肉眼观察无法区分宫颈糜烂与宫颈上皮内瘤变及旱期宫颈癌。  相似文献   

16.
目的:探讨子宫颈机能不全(cervical incompetence,CI)患者孕期行腹腔镜子宫颈环扎术(laparoscopic cervical cerclage,LAC)和经阴道子宫颈环扎术(transvaginal cervical cerclage,TVC)后的妊娠结局及超声监测妊娠期子宫颈长度的变化,进一步探讨LAC的适应证。方法:回顾性分析2016年6月至2022年2月因CI孕期在本院行子宫颈环扎术的患者共115例,其中行LAC 65例(LAC组),既往TVC失败35例,既往行子宫颈锥切术30例;TVC 50例(TVC组),均无既往TVC失败史,既往行子宫颈锥切术20例。对2组患者的妊娠结局、术中情况、术后并发症及妊娠期超声测量的子宫颈长度进行比较。结果:LAC组既往TVC失败率高于TVC组(53.8%vs. 0.0%,P<0.05),差异有统计学意义,LAC组、TVC组既往子宫颈锥切手术率差异无统计学意义(46.1%vs. 40.0%,P>0.05);LAC组的足月产率、新生儿存活率、分娩孕周、延长孕周[83.0%、100.0%、(36.5±4.0)周、(1...  相似文献   

17.
颈椎前路减压颈椎椎体间融合器椎体间融合术   总被引:3,自引:0,他引:3  
目的:观察颈椎椎体间融合器(BAK)用于颈椎前路减压后椎体间固定和融合效果。方法:采用BAK行颈椎病及颈椎间盘突出症前路减压术后椎体间融合术64例。术后颈椎X线片及CT检查,观察手术椎节的稳定性和融合情况。结果:随访6 ̄28个月,术后次日即下床活动,手术节段稳定,术后3 ̄6个月融合。结论:BAK颈椎椎体间固定融合技术使施术椎节立即稳定,手术安全简便,并且避免了自体植骨引起的多种并发症,可作为替代传  相似文献   

18.
Background Cervical disc arthroplasty is a new technique for treating degenerative cervical disease. Its goal is to avoid the degeneration of adjacent levels by preserving motion at the treated level. The aims of this study were to evaluate the radiologic outcomes of Bryan cervical disc replacement and the degenerative status of adjacent segments.Methods Twenty-two patients at a single center underwent discectomy and implantation of Bryan cervical disc. The mean follow-up period was 60 months (57-69 months). Twenty patients underwent single-level arthroplasty and two underwent arthroplasty at two levels. The levels of surgery included C3/4 (3 levels), C4/5 (2 levels), C5/6 (18 levels) and C6/7 (1 level). Radiographic evaluation included dynamic X-ray examination and magnetic resonance imaging (MRI) at baseline and at final follow-up.Results On X-ray examination, the range of motion (ROM) at the operated level was 7.2° (2.5°-13.0°) at baseline and 7.8° (1.0°-15.0°) at final follow-up (P 〉0.05). Heterotopic ossification around the prosthesis was observed in eight levels,and two levels showed loss of motion (ROM 〈2°). MRI showed worsening by a grade at the upper level in 2/22 patients,and worsening by a grade at the lower level in 3/22, according to Miyazaki's classification. No further impingement of the ligamentum flavum into the spinal canal was observed at adjacent levels, though the disc bulge was slightly increased at both the adjacent upper and lower levels at final follow-up.Conclusions Arthroplasty using Bryan cervical disc prosthesis resulted in favorable radiologic outcomes in this study.Disc degeneration at adjacent levels may be postponed by this technique.  相似文献   

19.
This study examined effect of a new intervertebral cervical disc prosthesis in relieving the neurological symptoms and signs, improving the patients' ability to perform daily activities, reducing pain, and maintaining the stability and segmental motion. From December 2003 to October 2004, 12 patients, who had received 14 replacements of cervical artificial discs, were followed-up for 2 to 8 months (with a mean of 5.2 months). Of them 5 had cervical spondylotic myelopathy and 7 had cer- vical disc herniation. The patients included 7 males and 5 females, with their age ranging from 35 to 62 y and a mean of 50.3 y. Single-level replacements were performed in 10 cases and 2 cases re- ceived two-level replacement. Operation time of the single-level surgery averaged 130±50 min and the time of two-level surgery was 165±53 min on average (from skin incision to skin suturing). Neurological or vascular complications during or after surgery was not observed. Japanese Orthope- dic Association scores (JOA scores) increased from 8.6 to 15.8 on average. There was no prothesis subsidence or excursion. Replaced segments were stable and the range of motion was partially re- stored, being 4.68° (3.6°-6.1°) in flexion and extension position and 3.51° (2.5°-4.6°), 3.42° (2.6° -4.3°) in left and right bending position. No obvious loss of physiological curvature was noted. CT or MRI follow-up showed that excursion was less than 1.5 mm) in 2 of 14 levels and between 1.5 mm and 3 mm) in 1 of 14 levels. No ossification in the replaced levels was observed. It is concluded that satisfactory short-term results were achieved in the 12 cases of artificial disc replacements. Different from anterior cervical discectomy and fusion, the replacement could achieve quick functional recov- ery and did not lead to the movement limitation of cervical vertebrae. At least a 5-years follow-up was needed to assess the long-term effect of the prosthesis on its neighboring segments.  相似文献   

20.
颈椎间盘突出症的诊断与手术治疗   总被引:12,自引:0,他引:12  
目的:探讨颈椎间盘突出症的诊断和手术疗法。方法:分析颈椎间盘突出症156例临床资料,观察其临床表现,影响学改变及手术疗效。结果:颈椎间盘突出可分为中央型和侧方型。前者以颈髓受压,后者以神经根受损为主要临床表现,MRI可明确显示其类型,对142例进行术后随访8~88个月(平均42个月),术后优良率为92%(130/142)结论:MRI对本病的诊断具有重要价值,对病情较重,尤其中央型突出者及经正规非手  相似文献   

设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号