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 78 毫秒
1.
目的:观察子宫腺肌病患者子宫内膜组织中细胞核相关抗原( ki-67)、B细胞淋巴瘤/白血病-2基因(bcl-2)及信号传导与转录激活因子3(STAT3)的表达变化,并探讨其意义。方法采用免疫组化SP法检测40例子宫腺肌病患者异位、在位内膜组织及41例正常子宫内膜组织中的ki-67、bcl-2及STAT3,并分析三者的关系。结果子宫腺肌病在位内膜和正常子宫内膜增殖期的ki-67、bcl-2阳性表达率均高于分泌期,P均<0.05。子宫腺肌病异位内膜分泌期的ki-67阳性表达率均高于同期子宫腺肌病在位内膜和正常子宫内膜,子宫腺肌病异位、在位内膜bcl-2、STAT3阳性表达率均高于同期正常子宫内膜,P均<0.05。子宫腺肌病异位、在位内膜组织中ki-67、bcl-2和STAT3的表达,两两均呈正相关,P均<0.05。结论子宫腺肌病异位内膜组织中ki-67、bcl-2及STAT3表达均升高,三者可能共同促进该病的发生发展。  相似文献   

2.
华金莲  王秀伟 《山东医药》2008,48(18):69-70
采用免疫组化法检测38例子宫腺肌病患者在位子宫内膜及异位内膜中的E-cadherin,与子宫肌瘤组织作比较.结果显示,E-cadherin评分,腺肌病组在位子宫内膜增殖期为(9.6±1.4)分、分泌期为(11.6±1.6)分,异位内膜增殖期为(12.2±1.7)分、分泌期为(13.0±1.8)分;肌瘤组增殖期为(8.3±1.6分)、分泌期为(10.5±1.5)分;腺肌病组各期异位内膜E-cadherin评分与在位内膜相比,P均<0.05;各期在位和异位内膜与肌瘤组相比,P均<0.05.认为子宫腺肌病患者子宫在位和异位内膜E-cadherin表达均升高,E-cadherin在子宫腺肌病的发生、发展中有重要作用.  相似文献   

3.
目的检测子宫腺肌病患者异位膜及在位内膜组织中的水通道蛋白1(AQP1),并探讨其意义。方法采用免疫组化法检测35例子宫腺肌病患者在位内膜、异位内膜组织中的AQP1,以21例正常子宫内膜作对照。结果子宫腺肌病患者异位内膜、在位内膜组织中的AQP1均较正常内膜明显升高(P均〈0.05)。异位内膜中的AQP1较在位内膜明显升高(P〈0.05)。增生期正常内膜组织中的AQP1与分泌期相比,增生期在位内膜组织中AQP1的表达与分泌期相比,P均〉0.05。结论子宫腺肌病异位和在位内膜组织中AQP1表达升高,且与月经周期无关。AQP1在子宫腺肌病的发生过程中起促进作用。  相似文献   

4.
目的观察子宫腺肌病患者在位、异位内膜组织中异位脆性组氨酸三联体(FHIT)及血管内皮生长因子(VEGF)的表达,并探讨其意义。方法采用免疫组化SP法检测30例子宫腺肌病患者在位、异位内膜及30例子宫内膜正常者子宫内膜组织中的FHIT及VEGF。结果子宫腺肌病异位内膜、在位内膜及正常内膜组织中FHIT阳性表达率分别为40%、63.3%、100%,FHIT在子宫腺肌病在位内膜、异位内膜中的表达低于正常子宫内膜(P均〈0.05),异位、在位内膜相比P〉0.05。VEGF阳性表达率分别为73.3%、60%、30%,VEGF在子宫腺肌病异位内膜、在位内膜中的表达高于正常子宫内膜(P均〈0.05),异位、在位内膜相比P〈0.05。结论子宫腺肌病患者在位、异位子宫内膜组织中FHIT低表达,VEGF高表达。二者可能在子宫腺肌病的发生、发展中发挥重要作用。  相似文献   

5.
目的探讨子宫腺肌病中p16与Survivin蛋白的表达及意义。方法采用免疫组化SP法检测p16与Survivin在子宫腺肌病(30例)异位内膜及在位内膜组织中的表达,并与正常子宫内膜组织(30例)进行比较。结果 p16蛋白在正常内膜中的表达均明显高于在位内膜及异位内膜(P<0.05);Survivin蛋白在子宫腺肌病异位内膜中的表达均高于在位内膜及正常内膜(P均<0.05)。两者在异位内膜增生期与分泌期表达无统计学差异(P>0.05)。p16与Survivin在异位内膜中的表达呈负相关(r=-0.416,P<0.05)。结论子宫腺肌病异位内膜中p16与Survivin蛋白的表达呈负相关,均参与了子宫腺肌病的发生、发展。  相似文献   

6.
Bcl-2和FasL在子宫内膜异位症组织中的表达及意义   总被引:2,自引:0,他引:2  
采用免疫组化法测定子宫内膜异位症(EMS)的在位内膜、异位内膜及正常子宫内膜中的Bcl-2、FasL。正常子宫内膜Bcl-2的表达增生期明显高于分泌期(P〈0.05),FasL的表达增生期明显低于分泌期(P〈0.05)。EMS在位内膜Bcl-2的表达有周期性,但都高于同期正常子宫内膜(P〈0.05);在位内膜FasL的表达无周期性,但分泌期表达低于正常子宫内膜(P〈0.05)。异位内膜Bcl-2呈持续高表达而无周期性,与在位内膜相似(P〉0.05),但均高于正常子宫内膜(P〈0.05);异位内膜FasL的表达较高而无周期性,但均高于正常子宫内膜的分泌期(P〈0.05)。认为EMS异位内膜Bcl-2的持续高表达是阻止异位种植的内膜细胞凋亡从而继续生长形成异位灶的原因之一;异位内膜FasL的持续高表达可能会诱导浸润至局部的免疫活化细胞发生凋亡,为异位内膜逃脱机体免疫细胞的清除而继续存活生长创造了条件。  相似文献   

7.
采用免疫组织化学法检测41例子宫腺肌病在位内膜、异位内膜中VEGF、ENS的表达,并应用计算机图象分析系统分析其积分灰度.子宫腺肌病异位内膜VEGF、ENS的表达均较在位内膜明显增高(P<0.01),且VEGF表达增高幅度更大.子宫腺肌病在位内膜卵泡期VEGF、ENS的表达均较黄体期高(P<0.05).认为子宫腺肌病异位内膜灶的形成及维持与新生血管的形成密切相关,VEGF和ENS同时参与了子宫腺肌病异位内膜血管生成的调控,二者之间的平衡失调导致了异位内膜血管内皮细胞的增殖.  相似文献   

8.
目的 观察子宫腺肌病组织中VEGF的表达及其对微血管生成的影响.方法 采用免疫组化法检测34例子宫腺肌病(研究组)原位内膜、腺肌病病灶和30例非子宫腺肌病子宫标本(对照组)原位内膜VEGF蛋白和微血管密度(MVD);采用RT-PCR检测VEGF mRNA的表达.结果 研究组增殖期和分泌期腺肌病病灶、原位内膜VEGF蛋白表达率均高于对照组内膜,研究组腺肌病病灶表达率高于原位内膜.分泌期两组中原位内膜的表达率均高于增殖期.子宫腺肌病病灶和原位内膜MVD高于对照组内膜,腺肌病病灶高于原位内膜.VEGF和MVD表达呈正相关.结论 子宫腺肌病病灶存在VEGF、VEGF mRNA、MVD的高表达,子宫腺肌病病灶VEGF和MVD表达呈正相关.  相似文献   

9.
目的 观察子宫腺肌病(AM)组织中促肝细胞再生磷酸酶-3(PRL-3)及血管内皮细胞生长因子(VEGF)的表达变化,并探讨其意义.方法 选取30例AM患者异位内膜(异位组)、在位内膜组织(在位组),以及30例子宫肌瘤患者正常子宫内膜组织(对照组),采用免疫组化法检测各组织中PRL-3、VEGF的表达水平.结果 VEGF及PRL-3在异位组表达显著高于在位组及对照组(P均<0.01),且在在位组的表达高于对照组(P均<0.05).异位组、在位组增生期与分泌期内膜中PRL-3的表达均高于同时相对照组(P均<0.05).对照组中VEGF在分泌期内膜中的表达高于增生期(P<0.05).PRL-3与VEGF在在位组中的表达呈正相关关系(r=0.439,P<0.05).结论 PRL-3及VEGF在AM异位内膜中呈高表达,二者可能与AM的发病有关.  相似文献   

10.
目的 探讨环氧化酶-2(COX-2)和血管内皮生长因子(VEGF)在子宫内膜癌发生发展中的作用。方法 采用免疫组化SP法检测41例子宫内膜癌和15例正常子宫内膜组织中COX-2、VEGF的表达。结果 子宫内膜癌组织中COX-2、VEGF的阳性表达率明显高于正常子宫内膜组织(P均〈0.05,);低分化和肌层浸润〉1/2者的子宫内膜癌组织中COX-2表达明显高于中、高分化和肌层浸润≤1/2(P〈0.05)者;COX-2表达阳性的子宫内膜癌,其VEGF阳性率明显高于COX-2表达阴性者(P〈0.05)。结论 COX-2在子宫内膜癌组织中呈高表达,并可上调VEGF的表达,二者可能与子宫内膜癌的发生发展有关。  相似文献   

11.
Our study examined the efficacy of four treatment modalities in controlling hemorrhage and achieving hemodynamic stabilization in hemorrhagic shock: intravenous fluid replacement (IV); military antishock trousers used concomitantly with fluids (MAST); balloon occlusion at the level of the diaphragm with concomitant fluid replacement (balloon); and a combination of MAST inflation, balloon occlusion, and fluid resuscitation (MAST and balloon). Twenty-eight mongrel dogs were anesthetized, and the spleen was exposed and completely crushed. The abdomen was closed, and treatment was initiated and continued for four hours or until the dog died. For all conditions the hematocrit dropped during the course of the experiment; balloon occlusion was effective at slowing this drop (P less than .0001), but MAST had no statistically significant effect. Animals with balloons bled more slowly into the abdominal cavity than did animals in the other two groups (P less than .0001). MAST also were effective at slowing the bleeding (P less than .05). Of the balloon and the MAST and balloon dogs, all except one survived the entire four hours; this difference between balloon and nonballoon dogs is significant (P = .002). MAST did not have a statistically significant effect on survival. Perfusion pressure (PP) declined during the course of the experiment, and the balloon was effective at slowing this decline (P less than .0001); none of the other comparisons was statistically significant.  相似文献   

12.
目的 分析陕西省新型结核病防治管理模式实施前后结核病防治能力建设及诊治效果,为进一步完善我省结核病防控政策和措施提供参考。方法 本研究采用描述性研究,对全省10个地级市、108个县(区)结核病防治能力建设情况,以及患者发现、治疗管理等指标变化情况进行对比分析。能力建设情况以2014年和2017年数据作对比,分别来源于《陕西省“十二五”结核病防治规划》评估和2017年全省结核病防治工作联合大检查。患者发现、治疗管理指标来源于《结核病信息管理系统》,以实施前3年(2012—2014年)与实施后3年(2015—2017年)的数据作对比。运用SPSS 19.0处理数据,率和构成比的比较采用χ 2检验,以P<0.05为差异有统计学意义。 结果 2014年和2017年全省设有结核病定点医院的数量分别为20家和107家,2017年较2014年增加了87家。2014年全省共有结核病防治人员923名,其中疾病预防控制中心(CDC)656名,定点医院267名。2017年全省共有结核病防治人员1200名,其中CDC 403名,定点医院797名;与2014年相比,CDC人员减少了38.57%,定点医院人员增加了198.50%。2014年全省有3个地级市开展了分子生物学耐药检测,5.56%(6/108)的县(区)开展了分子生物学检测,12.04%(13/108)的县(区)开展了痰培养。2017年全省有8个地级市开展了分子生物学耐药检测,49.07%(53/108)的县(区)开展了分子生物学检测,55.56%(60/108)的县(区)开展了痰培养。新型防治模式实施前3年全省初诊查痰率为98.50%(329981/335014),发现肺结核患者63892例(其中结核性胸膜炎患者4089例),发现病原学阳性患者14087例,病原学阳性率为23.56%(14087/59803)。实施后3年全省初诊查痰率为95.00%(312503/328948),发现肺结核患者61583例(其中结核性胸膜炎5295例),病原学阳性患者10588例,病原学阳性率为18.81%(10588/56288)。新型防治模式实施前后初诊查痰率降低(χ 2=6484.178,P=0.000),病原学阳性率降低(χ 2=390.104,P=0.000)。实施前3年因症就诊发现肺结核患者占29.43%(18805/63892),转诊发现患者占43.90%(28047/63892)。实施后3年因症就诊发现肺结核患者占25.38%(15628/61583),转诊发现患者占57.79%(35586/61583)。转型后因症就诊发现患者的构成比下降(χ 2=259.002,P=0.000),转诊发现患者的构成比上升(χ 2=2419.762,P=0.000)。新模式实施前后3年非结核病防治机构报告患者总体到位率分别为93.18%(62177/66726)和89.96%(61323/68169),实施后总体到位率下降(χ 2=453.550,P=0.000)。新模式实施前后患者治疗成功率分别为95.04%(60464/63619)和94.97%(57872/60939),实施前后比较差异无统计学意义(χ 2=0.356,P=0.551)。 结论 我省新型结核病防治管理模式推进顺利,防治能力加强,但部分患者诊治及管理指标有所下滑,实施质量仍需提升。  相似文献   

13.
Boslem E  Meikle PJ  Biden TJ 《Islets》2012,4(3):177-187
Recent technical advances have re-invigorated the study of sphingolipid metabolism in general, and helped to highlight the varied and important roles that sphingolipids play in pancreatic β-cells. Sphingolipid metabolites such as ceramide, glycosphingolipids, sphingosine 1-phosphate and gangliosides modulate many β-cell signaling pathways and processes implicated in β-cell diabetic disease such as apoptosis, β-cell cytokine secretion, ER-to-golgi vesicular trafficking, islet autoimmunity and insulin gene expression. They are particularly relevant to lipotoxicity. Moreover, the de novo synthesis of sphingolipids occurs on many subcellular membranes, in parallel to secretory vesicle formation, traffic and granule maturation events. Indeed, the composition of the plasma membrane, determined by the activity of neutral sphingomyelinases, affects β-cell excitability and potentially insulin exocytosis while another glycosphingolipid, sulfatide, determines the stability of insulin crystals in granules. Most importantly, sphingolipid metabolism on internal membranes is also strongly implicated in regulating β-cell apoptosis.  相似文献   

14.
Antibiotic-associated diarrhea(AAD) and Clostridum difficile infections(CDI) have been well studied for adult cases, but not as well in the pediatric population. Whether the disease process or response to treatments differs between pediatric and adult patients is an important clinical concern when following global guidelines based largely on adult patients. A systematic review of the literature using databases Pub Med(June 3, 1978-2015) was conducted to compare AAD and CDI in pediatric and adult populations and determine significant differences and similarities that might impact clinical decisions. In general, pediatric AAD and CDI have a more rapid onset of symptoms, a shorter duration of disease and fewer CDI complications(required surgeries and extended hospitalizations) than in adults. Children experience more community-associated CDI and are associated with smaller outbreaks than adult cases of CDI. The ribotype NAP1/027/BI is more common in adults than children. Children and adults share some similar risk factors, but adults have more complex risk factor profiles associated with more co-morbidities, types of disruptive factors and a wider range of exposures to C. difficile in the healthcare environment. The treatment of pediatric and adult AAD is similar(discontinuing or switching the inciting antibiotic), but other treatment strategies for AAD have not been established. Pediatric CDI responds better to metronidazole, while adult CDI responds better to vancomycin. Recurrent CDI is not commonly reported for children. Prevention for both pediatric and adult AAD and CDI relies upon integrated infection control programs, antibiotic stewardship and may include the use of adjunctive probiotics. Clinical presentation of pediatric AAD and CDI are different than adult AAD and CDI symptoms. These differences should be taken into account when rating severity of disease and prescribing antibiotics.  相似文献   

15.
In a prospective, randomized clinical trial, 19 patients with an acute exacerbation of asthma were given a loading dose of aminophylline by the IV (n = 10) or oral route (n = 9) of administration following treatment with epinephrine. Plasma concentrations of theophylline were measured prior to giving the loading dose, and one, two, three, and 24 to 48 hours later. Therapeutic effectiveness was evaluated by analyzing spirometric measurements prior to giving the loading dose, and one, three, and 24 to 48 hours later. Side effects also were recorded. In the IV group, the mean peak plasma theophylline concentration was 15.1 micrograms/mL one hour after loading, and in the oral group the mean peak serum theophylline concentration was 14.2 micrograms/mL three hours after loading. There was no correlation between theophylline concentrations and normalized change in spirometric values. There was no significant difference in spirometric values between the IV and oral groups. Nausea was slightly more common in the IV group. We conclude that there is no therapeutic advantage to giving a loading dose of aminophylline by the IV route rather than orally in patients with mild-to-moderate exacerbation of asthma initially treated with epinephrine.  相似文献   

16.
Pharmacologic treatments for Alzheimer’s disease include the cholinesterase inhibitors donepezil, galantamine, and rivastigmine. We reviewed their evidence by searching MEDLINE®, Embase, The Cochrane Library, and the International Pharmaceutical Abstracts from 1980 through 2007 (July) for placebo-controlled and comparative trials assessing cognition, function, behavior, global change, and safety. Thirty-three articles on 26 studies were included in the review. Meta-analyses of placebo-controlled data support the drugs’ modest overall benefits for stabilizing or slowing decline in cognition, function, behavior, and clinical global change. Three open-label trials and one double-blind randomized trial directly compared donepezil with galantamine and rivastigmine. Results are conflicting; two studies suggest no differences in efficacy between compared drugs, while one study found donepezil to be more efficacious than galantamine, and one study found rivastigmine to be more efficacious than donepezil. Adjusted indirect comparison of placebo-controlled data did not find statistically significant differences among drugs with regard to cognition, but found the relative risk of global response to be better with donepezil and rivastigmine compared with galantamine (relative risk = 1.63 and 1.42, respectively). Indirect comparisons also favored donepezil over galantamine with regard to behavior. Across trials, the incidence of adverse events was generally lowest for donepezil and highest for rivastigmine.  相似文献   

17.
Over the past two decades, several advances have been made in the management of patients with inflammatory bowel disease (IBD) from both evaluative and therapeutic perspectives. This review discusses the medical advancements that have recently been made as the standard of care for managing patients with ulcerative colitis (UC) and Crohn''s Disease (CD) and to identify the challenges associated with implementing their use in clinical practice. A comprehensive literature search of the major databases (PubMed and Embase) was conducted for all recent scientific papers (1990–2013) giving the recent updates on the management of IBD and the data were extracted. The reported advancements in managing IBD range from diagnostic and evaluative tools, such as genetic tests, biochemical surrogate markers of activity, endoscopic techniques, and radiological modalities, to therapeutic advances, which encompass medical, endoscopic, and surgical interventions. There are limited studies addressing the cost-effectiveness and the impact that these advances have had on medical practice. The majority of the advances developed for managing IBD, while considered instrumental by some IBD experts in improving patient care, have questionable applications due to constraints of cost, lack of availability, and most importantly, insufficient evidence that supports their role in improving important long-term health-related outcomes.  相似文献   

18.
This study was to assess the effect of stapled colorectal anastomoses on local recurrence, disease-free survival, and survival following curative resection for Dukes' B and C adenocarcinoma. Data were derived from two randomized prospective trials of the National Surgical Adjuvant Breast and Bowel Project designed to evaluate the efficacy of adjuvant therapy in colorectal cancer. Of 1111 patients with colonic anastomoses, 255 were stapled mechanically. There were no significant differences in disease-free survival, survival, or local tumor recurrence among patients subjected to stapled or handsewn anastomoses. Of the 181 patients undergoing anterior resection for rectal cancer, 82 anastomoses were fashioned with staples. No significant disadvantage in disease-free survival, survival, or local recurrence could be attributed to use of the mechanical stapling devices. Twelve percent of patients undergoing stapled rectal anastomoses developed a local recurrence as a first sign of treatment failure compared with 19 percent for the handsewn group. No significant differences in the length of distal margins were detectable. The average time on study was 41 months. The use of stapled anastomoses for carcinoma of the colon or rectum is not associated with an adverse effect on long-term outcome. Read at the meeting of the American Society of Colon and Rectal Surgeons, San Diego, California, May 5 to 10, 1985. Supported by USPHS NIH-U10-34212 and an American Cancer Society Grant RC-13.  相似文献   

19.
The latest avenue of research is revealing the existence of and role for the colonic stem cells in the physiological renewal of the mucosa and in pathological circumstances where they have both positive and negative effects. In the case of human colon, different levels of stem cell compartments exist. First, the crypt epithelial stem cells, which have a role in the normal crypt epithelial cell dynamics and in colorectal carcinogenesis. Close to the crypts, the second layer of stem cells can be found; the local subepithelial stem cell niche, including the pericryptic subepithelial myofibroblasts that regulate the epithelial cell differentiation and have a crucial role in cancer progression and chronic inflammation-related fibrosis. The third level of stem cell compartment is the immigrating bone-marrow-derived stem cells, which have an important role in wound healing after severe mucosal inflammation, but are also involved in cancer invasion. This paper focuses on stem cell biology in the context of physiological and pathological processes in the human colon.  相似文献   

20.
《Viruses》2014,6(9):3663-3682
Sequence determination of complete or coding-complete genomes of viruses is becoming common practice for supporting the work of epidemiologists, ecologists, virologists, and taxonomists. Sequencing duration and costs are rapidly decreasing, sequencing hardware is under modification for use by non-experts, and software is constantly being improved to simplify sequence data management and analysis. Thus, analysis of virus disease outbreaks on the molecular level is now feasible, including characterization of the evolution of individual virus populations in single patients over time. The increasing accumulation of sequencing data creates a management problem for the curators of commonly used sequence databases and an entry retrieval problem for end users. Therefore, utilizing the data to their fullest potential will require setting nomenclature and annotation standards for virus isolates and associated genomic sequences. The National Center for Biotechnology Information’s (NCBI’s) RefSeq is a non-redundant, curated database for reference (or type) nucleotide sequence records that supplies source data to numerous other databases. Building on recently proposed templates for filovirus variant naming [<virus name> (<strain>)/<isolation host-suffix>/<country of sampling>/<year of sampling>/<genetic variant designation>-<isolate designation>], we report consensus decisions from a majority of past and currently active filovirus experts on the eight filovirus type variants and isolates to be represented in RefSeq, their final designations, and their associated sequences.  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