• 【大肠腺癌和其他大肠疾病中的雌激素受体。】 复制标题 收藏 收藏
    DOI: 复制DOI
    作者列表:Sciascia C,Olivero G,Comandone A,Festa T,Fiori MG,Enrichens F
    BACKGROUND & AIMS: :Seventy-two patients with tumor and ten with non-neoplastic colon disease were studied for the presence of estrogen receptors (ER) by three different methods. Only seven specimens (six primary adenocarcinomas and one recurrent cancer) had an ER concentration above 3 fm/mg of cytosolic protein, with no sex, age and tumor stage correlation. Our results suggest that the large bowel does not contain a cytosolic receptor for estradiol.
    背景与目标: :通过三种不同的方法研究了73例肿瘤患者和10例非肿瘤性结肠疾病患者中雌激素受体(ER)的存在。只有7个标本(6个原发性腺癌和1个复发癌)的ER浓度高于3 fm / mg的胞质蛋白,与性别,年龄和肿瘤分期无关。我们的结果表明,大肠不含有雌二醇的胞质受体。
  • 【在西西里岛东部卡塔尼亚居住的哥伦比亚和多米尼加女性性工作者中,艾滋病毒和其他性传播疾病的流行。】 复制标题 收藏 收藏
    DOI:10.1007/s10903-006-9002-1 复制DOI
    作者列表:Nigro L,Larocca L,Celesia BM,Montineri A,Sjoberg J,Caltabiano E,Fatuzzo F,Unit Operators Group.
    BACKGROUND & AIMS: INTRODUCTION:STDs are a significant cause of illness throughout the world. Female sex workers (FSWs) are commonly perceived as belonging to a social group which may engage in high-risk behaviour for acquiring or transmitting HIV and other STDs. The number of immigrant women engaged in sex work has increased in Catania, Sicily, over the last 10 years. This study aims to estimate the prevalence of HIV, HBV, HCV and syphilis among Colombian and Dominican FSWs. METHODS:In total 118 (63.78%) of the FSWs contacted in the course of the project agreed to participate in the study. All women enrolled were counselled on STDs/HIV, safer sex practices and the use of condoms. Blood samples were taken and tested for HIV, HBV, HCV and syphilis. RESULTS:Of the 118 FSWs enrolled, all were negative for both HIV and HCV infection. Two women (1.6%) were positive for hepatitis B (HbsAg). Syphilis testing by VDRL showed three positive results (2.5%), which was confirmed by TPHA. DISCUSSION:This study showed that HIV, HBV, HCV and syphilis seroprevalence among Colombian and Dominican FSWs remains low or very rare. It also indicates that these women were healthy when they arrived in Italy and that condom use with clients is high.
    背景与目标: 简介:性病是世界范围内引起疾病的重要原因。女性性工作者(FSWs)通常被认为属于一个社会群体,该群体可能会为获取或传播艾滋病毒和其他性传播疾病而从事高风险行为。在过去的十年中,西西里岛卡塔尼亚从事性工作的移民妇女人数有所增加。这项研究的目的是估计哥伦比亚和多米尼加的FS​​W中HIV,HBV,HCV和梅毒的患病率。
    方法:在该项目过程中,总共有118名(63.78%)的FSW同意参与研究。为所有入选妇女提供性传播疾病/艾滋病毒,更安全的性行为和使用安全套方面的咨询。抽取血样并测试HIV,HBV,HCV和梅毒。
    结果:在118个FSW中,所有的HIV和HCV感染均为阴性。两名女性(1.6%)的乙型肝炎(HbsAg)阳性。通过VDRL进行的梅毒测试显示三项阳性结果(2.5%),这已被TPHA证实。
    讨论:这项研究表明,哥伦比亚和多米尼加地区FSW中的HIV,HBV,HCV和梅毒血清阳性率仍然很低或非常罕见。这也表明这些妇女到达意大利后就很健康,而且与客人一起使用避孕套的比例很高。
  • 【进行基于社区的精神病治疗的重度精神疾病患者的口腔疾病流行率和与口腔健康相关的生活质量。】 复制标题 收藏 收藏
    DOI:10.1038/sj.bdj.2012.989 复制DOI
    作者列表:Patel R,Gamboa A
    BACKGROUND & AIMS: OBJECTIVES:To describe the prevalence of oral diseases and their impact on oral-health-related quality of life in people with severe mental illness undertaking community-based psychiatric care. METHODS:A survey was conducted at eight outpatient psychiatric care clinics in Tower Hamlets, London, UK. One hundred and twelve consecutive patients with mental illness were invited to participate in this study. They were clinically examined and asked to complete the oral health impact profile (OHIP) questionnaire. RESULTS:The response rate was 79% (n = 89); 57 (64%) males and 58 persons over 45 years of age (65%) participated in this survey. Overall OHIP score was 25.4 (95% CI 23.3, 27.4), 70 (78%) were smokers and 45 (51%) had been to the dentist in the last two years. Forty-seven (53%) respondents had caries in at least one tooth, 60 (67%) had 21 teeth and more, and 14 (16%) used dentures. Advanced periodontal treatment was indicated in 42 (55%) of patients and 52.8% (n = 47) patients reported current pain. CONCLUSION:Overall, this survey found that oral health has a great impact on patients with severe mental illness being treated in the community setting and their oral health is poorer than the national adult general population. Future research should consider the causes that relate to the poorer oral health in this population and potential health promotion mechanisms in this population to encourage an upstream approach to health.
    背景与目标: 目的:描述在进行基于社区的精神病治疗的重度精神疾病患者中口腔疾病的流行及其对口腔健康相关生活质量的影响。
    方法:在英国伦敦塔哈姆雷特市的八家门诊精神病诊所进行了一项调查。连续邀请112名精神疾病患者参加这项研究。对他们进行了临床检查,并要求他们填写口腔健康影响概况(OHIP)问卷。
    结果:回应率为79%(n = 89);男性(57%)(64%)和58岁以上的58人(65%)参加了这项调查。 OHIP总体得分为25.4(95%CI 23.3、27.4),吸烟者70(78%)和最近两年去牙医的45(51%)。 47名(53%)的被调查者的至少一颗牙齿上有龋齿; 60(67%)的人有21颗及以上的牙齿,以及14颗(16%)的假牙。 42名(55%)患者表示接受牙周治疗,目前有疼痛的患者占52.8%(n = 47)。
    结论:总体而言,该调查发现,口腔健康对在社区环境中接受治疗的严重精神疾病患者有很大影响,并且其口腔健康状况比全国成年人口人群差。未来的研究应考虑与该人群口腔健康较差的原因以及该人群中潜在的健康促进机制,以鼓励采用上游健康方法。
  • 【甲状腺疾病的细针穿刺细胞学检查。】 复制标题 收藏 收藏
    DOI: 复制DOI
    作者列表:Altavilla G,Pascale M,Nenci I
    BACKGROUND & AIMS: :From 1982 to 1987, 2,433 lesions of the thyroid gland in 1,796 patients were examined by fine needle aspiration (FNA). Cytopathology classified 66.91% of the aspirates as benign, 10.76% as thyroiditis, 4.89% as suspected (unspecified) neoplasia, 1.31% as positive for malignancy and 16.11% (392) as unsatisfactory. The histologic diagnoses in 257 cases were compared with cytologic diagnoses to determine the accuracy of FNA cytology of thyroid lesions, yielding a sensitivity of 71.43%, a specificity of 100% and an accuracy of 95.09%. This data strongly supports thyroid FNA as an important preoperative diagnostic tool. Follicular carcinomas were difficult to cytologically differentiate from nonmalignant follicular neoplasms, and papillary thyroid carcinomas less than 2 cm in diameter in elderly patients were frequently misdiagnosed or diagnosed only as "suspect lesion."
    背景与目标: :从1982年到1987年,通过细针穿刺术(FNA)检查了1,796例患者的2,433例甲状腺的病变。细胞病理学将良性抽吸物分为66.91%,甲状腺炎为10.76%,疑似肿瘤(未指明)为4.89%,恶性肿瘤阳性为1.31%,不满意为16.11%(392)。将257例患者的组织学诊断结果与细胞学诊断结果进行比较,以确定FNA甲状腺病变细胞学检查的准确性,其敏感性为71.43%,特异性为100%,准确性为95.09%。该数据强烈支持甲状腺FNA作为重要的术前诊断工具。滤泡状癌很难在细胞学上与非恶性滤泡性肿瘤区分开,并且老年患者中直径小于2 cm的乳头状甲状腺癌经常被误诊或仅诊断为“可疑病变”。
  • 【在患有ALS4样运动神经元疾病的患者中评估的SETX错义变异谱。】 复制标题 收藏 收藏
    DOI:10.1007/s10048-012-0347-4 复制DOI
    作者列表:Arning L,Epplen JT,Rahikkala E,Hendrich C,Ludolph AC,Sperfeld AD
    BACKGROUND & AIMS: :Mutations in the senataxin (SETX) gene can cause amyotrophic lateral sclerosis 4 (ALS4), an autosomal dominant form of juvenile onset amyotrophic lateral sclerosis, or result in autosomal recessive ataxia with oculomotor apraxia type 2. Great caution regarding the possible disease causation, especially of missense variations, has to be taken. Here, we evaluated the significance of all previously reported SETX missense mutations as well as six newly identified variations in 54 patients suspected of having ALS4. Yet, epidemiologic and in silico evidence indicates that all newly identified variations and two previously published ALS4-related missense variations (C1554G and I2547T) are most likely non-pathogenic, demonstrating the problems of interpretation of SETX missense alleles in the absence of functional assays.
    背景与目标: :senataxin(SETX)基因的突变可引起肌萎缩性侧索硬化4(ALS4),这是一种常染色体显性形式的青少年发作性肌萎缩性侧索硬化,或导致常染色体隐性共济失调并伴有2型动眼性运动失用。特别是错义的变化,必须采取。在这里,我们评估了54位怀疑患有ALS4的患者中所有先前报道的SETX错义突变以及6个新近发现的变异的重要性。然而,流行病学和计算机病学证据表明,所有新发现的变异和两个先前发布的与ALS4相关的错义变异(C1554G和I2547T)极有可能是非致病性的,这表明在缺乏功能检测的情况下,SETX错义等位基因的解释存在问题。
  • 【发现双p38αN- {4- [5-(4-氟苯基)-3-甲基-2-甲基硫烷基-3H-咪唑-4-基]-吡啶-2-基}-乙酰胺(CBS-3595)具有抗TNFα相关疾病活性的MAPK / PDE-4抑制剂。】 复制标题 收藏 收藏
    DOI:10.1021/acs.jmedchem.6b01647 复制DOI
    作者列表:Albrecht W,Unger A,Bauer SM,Laufer SA
    BACKGROUND & AIMS: :The anti-inflammatory potential of p38 mitogen-activated protein kinase (MAPK) inhibitors was coincidentally expanded to a dual inhibition of p38α MAPK and phosphodiesterase 4 (PDE4), and the potential benefits arising from the blockage of both inflammation-related enzymes were thoroughly investigated. The most promising compound, CBS-3595 (1), was successively evaluated in in vitro experiments as well as in ex vivo and in vivo preclinical studies after administration of 1 to rodents, dogs, and monkeys. The resulting data clearly indicated a potent suppression of tumor necrosis factor alpha release. For reconfirming the findings of the animal studies when administering 1 to healthy human volunteers, a phase I clinical trial was conducted. Apart from further information regarding the pharmacokinetic and pharmacodynamic characteristics of 1, it was demonstrated that dual inhibition of p38α MAPK and PDE4 is able to synergistically attenuate the excessive anti-inflammatory response.
    背景与目标: :p38丝裂原活化蛋白激酶(MAPK)抑制剂的抗炎潜能同时扩展到了p38αMAPK和磷酸二酯酶4(PDE4)的双重抑制作用,并且两种炎症相关酶均被阻断产生了潜在的益处调查。给啮齿动物,狗和猴子施用1后,在体外实验以及离体和体内临床前研究中相继评估了最有前途的化合物CBS-3595(1)。所得数据清楚地表明有效抑制了肿瘤坏死因子α的释放。为了确认对健康的人类志愿者给药1时动物研究的结果,进行了I期临床试验。除了有关1的药代动力学和药效学特性的进一步信息外,还证明了对p38αMAPK和PDE4的双重抑制能够协同减弱过度的抗炎反应。
  • 【使用手持式便携式非散瞳眼底照相机对视网膜疾病进行远程医疗筛查。】 复制标题 收藏 收藏
    DOI:10.1186/s12886-017-0484-5 复制DOI
    作者列表:Jin K,Lu H,Su Z,Cheng C,Ye J,Qian D
    BACKGROUND & AIMS: BACKGROUND:We modified and reconstructed a high image quality portable non-mydriatic fundus camera and compared it with the tabletop fundus camera to evaluate the efficacy of the new camera in detecting retinal diseases. METHODS:We designed and built a novel portable handheld fundus camera with telemedicine system. The image quality of fundus cameras was compared to that of existing commercial tabletop cameras by taking photographs of 364 eyes from the 254 patients. In all 800 fundus images taken by two camera types, 400 images per camera, were graded with the four image clarity classifications. RESULTS:Using the portable fundus camera, 63% (252/400) images were graded as excellent overall quality, 20.5% (82/400) were good, 11.75% (47/400) were fair, and 4.75% (19/400) were inadequate. Using the tabletop fundus camera, 70.75% (283/400) images were graded as excellent overall quality, 20.4% (51/400) were good, 13.25% (53/400) were fair, and 3.25% (13/400) were inadequate. Common retinal diseases were easily identified from fundus images obtained from the portable fundus camera. CONCLUSION:The new type of non-mydriatic portable fundus camera was qualified to have professional quality of fundus images. The revolutionary screening camera provides a foundational platform which can potentially improve the accessibility of retinal screening programmes.
    背景与目标: 背景:我们修改并重建了高图像质量的便携式非散瞳眼底照相机,并将其与台式眼底照相机进行比较,以评估新照相机在检测视网膜疾病中的功效。
    方法:我们设计并制造了一种新型的带有远程医疗系统的便携式手持眼底照相机。通过拍摄254名患者的364眼照片,将眼底照相机的图像质量与现有商用台式照相机的图像质量进行了比较。在两种相机类型拍摄的全部800张眼底图像中,每台相机400张图像被分为四个图像清晰度分类。
    结果:使用便携式眼底照相机,将63%(252/400)的图像评为总体质量优良,20.5%(82/400)的图像质量良好,11.75%(47/400)的图像是良好的,以及4.75%(19/400)的图像)不足。使用台式眼底照相机,将70.75%(283/400)的图像评为总体质量优良,20.4%(51/400)的图像质量良好,13.25%(53/400)的图像质量良好,3.25%(13/400)的图像质量良好不足。从便携式眼底照相机获得的眼底图像很容易识别出常见的视网膜疾病。
    结论:新型非散瞳便携式眼底照相机经鉴定具有专业的眼底图像质量。革命性的筛查摄像机提供了一个基础平台,可以潜在地改善视网膜筛查程序的可及性。
  • 【个性化医学:诊断和治疗肾脏疾病的新观点。】 复制标题 收藏 收藏
    DOI:10.3390/ijms18061248 复制DOI
    作者列表:Gluba-Brzózka A,Franczyk B,Olszewski R,Banach M,Rysz J
    BACKGROUND & AIMS: :The prevalence of renal diseases is rising and reaching 5-15% of the adult population. Renal damage is associated with disturbances of body homeostasis and the loss of equilibrium between exogenous and endogenous elements including drugs and metabolites. Studies indicate that renal diseases are influenced not only by environmental but also by genetic factors. In some cases the disease is caused by mutation in a single gene and at that time severity depends on the presence of one or two mutated alleles. In other cases, renal disease is associated with the presence of alteration within a gene or genes, but environmental factors are also necessary for the development of disease. Therefore, it seems that the analysis of genetic aspects should be a natural component of clinical and experimental studies. The goal of personalized medicine is to determine the right drug, for the right patient, at the right time. Whole-genome examinations may help to change the approach to the disease and the patient resulting in the creation of "personalized medicine" with new diagnostic and treatment strategies designed on the basis of genetic background of each individual. The identification of high-risk patients in pharmacogenomics analyses will help to avoid many unwarranted side effects while optimizing treatment efficacy for individual patients. Personalized therapies for kidney diseases are still at the preliminary stage mainly due to high costs of such analyses and the complex nature of human genome. This review will focus on several areas of interest: renal disease pathogenesis, diagnosis, treatment, rate of progression and the prediction of prognosis.
    背景与目标: :肾脏疾病的患病率正在上升,并达到成年人口的5-15%。肾脏损害与体内稳态紊乱以及包括药物和代谢产物在内的外源性和内源性元素之间失去平衡有关。研究表明,肾脏疾病不仅受环境影响,而且受遗传因素影响。在某些情况下,该疾病是由单个基因的突变引起的,当时的严重程度取决于一个或两个突变等位基因的存在。在其他情况下,肾脏疾病与一个或多个基因内的改变的存在有关,但是环境因素对于疾病的发展也是必不可少的。因此,似乎遗传方面的分析应该是临床和实验研究的自然组成部分。个性化医学的目标是在正确的时间为正确的患者确定正确的药物。全基因组检查可能有助于改变疾病和患者的治疗方法,从而通过根据每个人的遗传背景设计新的诊断和治疗策略来创建“个性化药物”。在药物基因组学分析中识别高危患者将有助于避免许多不必要的副作用,同时优化单个患者的治疗效果。肾脏疾病的个性化治疗仍处于初步阶段,这主要是由于此类分析的高昂费用和人类基因组的复杂性。这项审查将集中在几个感兴趣的领域:肾脏疾病的发病机制,诊断,治疗,进展的速度和预后的预测。
  • 【IL-1β和IL-1受体拮抗剂基因多态性在炎症性肠病中的意义。】 复制标题 收藏 收藏
    DOI: 复制DOI
    作者列表:Heresbach D,Alizadeh M,Dabadie A,Le Berre N,Colombel JF,Yaouanq J,Bretagne JF,Semana G
    BACKGROUND & AIMS: OBJECTIVE:Genetic susceptibility to inflammatory bowel disease is well recognized. There is also increasing evidence for the activation of the mucosal immune system and the production of inflammatory cytokines, i.e., interleukin (IL)-1ra and IL-1beta in the inflammatory bowel disease. The aim of this study was to analyze the IL-1beta and IL-1ra gene polymorphism and linkage disequilibrium coefficient between the different alleles of these genes in patients with Crohn's disease (CD) or ulcerative colitis (UC), according to the severity of the disease.

    METHODS:Two hundred twenty-eight inflammatory bowel disease patients (87 UC and 141 CD) were included in this study and compared with 113 unrelated controls. The IL-1beta and IL-1ra gene polymorphism was studied after specific amplification of variable regions by PCR. A penta-allelic polymorphism, corresponding to a VNTR region located in intron 2 of the IL-1ra gene, was analyzed, whereas bi-allelic RFLPs displayed by two restriction enzymes (TaqI and AvaI) at position -511 of the IL-1beta gene were analyzed.

    RESULTS:There was no significant difference of genotype distribution between controls and CD or UC patients. However, surgically treated UC patients were characterized by a higher frequency of genotype IL-1ra 1-2 (39 vs 16%, pc < 0.01) compared with nonoperated UC patients. Moreover, nonoperated UC patients displayed a lower frequency of IL-1ra allele 2 than surgically treated UC patients (14 vs 34%, pc < 0.002) or controls (14 vs 30%, pc < 0.005). Furthermore, simultaneous analysis of the IL-1beta and IL-1ra genes that are located in the same region of chromosome 2 revealed that CD patients carrying the IL-1beta allele 2 were more often noncarriers of IL-1ra allele 2 (p < 0.005). Moreover, UC and CD patients were, characterized by a lower frequency of the association of IL-1ra allele 2 and IL-1beta allele 2 compared with controls (8.3 vs 20.3% and 10.6 vs 20.3%, p < 0.03).

    CONCLUSIONS:IL-1ra and IL-1beta gene polymorphism analysis from a clinical standpoint might help in defining UC prognosis. However, functional studies at both the circulating and mucosal level with stratification on allele associations, especially IL-1ra allele 2-IL-1beta allele 2 subgroups must be realized before therapeutic implications.

    背景与目标: 目标:人们对炎症性肠病的遗传易感性已广为人知。也有越来越多的证据表明在炎症性肠病中粘膜免疫系统的活化和炎性细胞因子,即白介素(IL)-1ra和IL-1β的产生。这项研究的目的是分析克罗恩病(CD)或溃疡性结肠炎(UC)患者的IL-1beta和IL-1ra基因多态性以及这些基因的不同等位基因之间的连锁不平衡系数。

    方法:该研究纳入了288例炎症性肠病患者(87 UC和141 CD),并与113个无关的对照组进行了比较。在通过PCR特异性扩增可变区之后,研究了IL-1β和IL-1ra基因多态性。分析了一个五等位基因多态性,对应于位于IL-1ra基因内含子2的VNTR区,而在IL-1beta基因第-511位的两个限制性酶(TaqI和AvaI)显示的双等位基因RFLP

    结果:对照组和CD或UC患者之间的基因型分布没有显着差异。然而,与未手术的UC患者相比,接受手术治疗的UC患者的特征在于基因型IL-1ra 1-2的发生频率更高(39%vs 16%,pc <0.01)。此外,未手术的UC患者显示出IL-1ra等位基因2的频率低于手术治疗的UC患者(14 vs 34%,pc <0.002)或对照组(14 vs 30%,pc <0.005)。此外,同时分析位于2号染色体同一区域的IL-1beta和IL-1ra基因发现,携带IL-1beta等位基因2的CD患者更常为IL-1ra等位基因2的非携带者(p <0.005) 。此外,UC和CD患者的特征是与对照组相比,IL-1ra等位基因2和IL-1β等位基因2的关联频率较低(8.3 vs 20.3%和10.6 vs 20.3%,p <0.03)。
    结论:从临床角度分析IL-1ra和IL-1beta基因多态性可能有助于确定UC的预后。但是,必须在循环和粘膜水平上对等位基因关联,特别是IL-1ra等位基因2-IL-1beta等位基因2亚组进行分层的功能研究。

  • 【神经免疫疾病的社会经济方面。】 复制标题 收藏 收藏
    DOI:10.1007/s00415-006-5015-x 复制DOI
    作者列表:Rieckmann P
    BACKGROUND & AIMS: :Neuroimmunological diseases often have a chronic course and a high socio-economic impact, as most of them occur in younger patients and result in progressing disability and loss of work force. Although for many conditions different treatment strategies are available no sufficient data exist to give a reasonable account on the cost effectiveness of individual therapies. Treatment decision should primarily be guided by evidence from high quality clinical studies and-if available-from direct head-to-head trials and cost-effectiveness analysis.
    背景与目标: 神经免疫疾病通常具有慢性病程,并且对社会经济影响很大,因为它们大多发生在年轻的患者中,并导致残疾的发展和劳动力的丧失。尽管对于许多情况,可以使用不同的治疗策略,但没有足够的数据来合理说明各个疗法的成本效益。治疗决策应首先以高质量临床研究的证据为指导,如果可以的话,也应以直接的直接面对面试验和成本效益分析为依据。
  • 【心脏瓣膜疾病术前自体血液存储的血液流变学效应】 复制标题 收藏 收藏
    DOI: 复制DOI
    作者列表:Ichikawa H,Kaneko T,Obayashi T,Murai N,Ogino T,Oshima S,Taniguchi K
    BACKGROUND & AIMS: The hemorheological effects of autologous blood storage with or without the use of erythropoietin were examined before surgery for valvular disease. There was no rheological difference between patients with aortic (16 cases) or mitral (10 cases) valve disease. Before storage, the levels of hematocrit, whole blood viscosity, and especially coefficient of rheology, were lower (p < 0.05) in the blood stored with erythropoietin, but this difference disappeared after storage. The plasma viscosity of both groups did not change before and after storage. The viscosity of blood was equalized after the storage of blood, irrespective of the use of erythropoietin.

    背景与目标: 在进行瓣膜疾病手术之前,先检查自体血液储存在有或没有使用促红细胞生成素的血液流变学效应。主动脉瓣膜病变(16例)或二尖瓣瓣膜病变(10例)的患者在流变学上没有差异。储存前,用促红细胞生成素储存的血液中的血细胞比容,全血粘度,尤其是流变系数较低(p <0.05),但这种差异在储存后消失。两组的血浆粘度在储存前后都没有改变。不论是否使用促红细胞生成素,都可以在储存血液后使血液的粘度达到均衡。

  • 【胎儿多囊肾疾病中α-整联蛋白亚基的分布。】 复制标题 收藏 收藏
    DOI:10.1007/s004670050275 复制DOI
    作者列表:Daïkha-Dahmane F,Narcy F,Dommergues M,Lacoste M,Beziau A,Gubler MC
    BACKGROUND & AIMS: :An alteration in cell/matrix interactions is one of the suggested mechanisms leading to cyst formation in polycystic kidney diseases. Most of these interactions are mediated by beta 1-integrins, a subfamily of integrin receptors, formed by the association of the beta 1-chain with different alpha-subunits. To date, no study on alpha-integrin subunit distribution during the early stages of cyst development has been reported. Using immunofluorescence, we analyzed the distribution of alpha-integrin subunits (alpha 1, alpha 2, alpha 3, alpha 5, and alpha 6) and basement membrane proteins in kidneys of fetuses with autosomal dominant (ADPKD) or autosomal recessive polycystic kidney disease (ARPKD). The distribution was compared with that observed in normal fetal and post-natal kidneys, and in fetal cystic dysplasia and Meckel syndrome. Marked increase in alpha 1-integrin staining was observed in normal and cystic collecting duct cells of both polycystic diseases (PKD), compared with normal and cystic controls. The distribution of integrin subunits alpha 2, alpha 3, and alpha 6 was irregular in cyst epithelial cells of PKD and cystic controls. The increased expression of the alpha 1-subunit specifically observed in PKD collecting duct cells may be an early consequence of the genetic defect in ARPKD. In ADPKD it parallels the reported expression of polycystin, the protein product of PKD1. The irregular expression of alpha 2, alpha 3, and alpha 6 integrin subunits observed in all types of cysts suggests that cell/matrix interactions are altered early and may participate in the development of cysts, perhaps by contributing to the deregulation of cell survival in cystic diseases.
    背景与目标: :细胞/基质相互作用的改变是导致多囊性肾脏疾病中形成囊肿的机制之一。这些相互作用中的大多数是由β1整联蛋白(β1整联蛋白)介导的,它是β1链与不同的α亚基缔合而形成的整联蛋白受体的一个亚家族。迄今为止,尚无关于囊肿发展早期α-整联蛋白亚基分布的研究的报道。我们使用免疫荧光分析了常染色体显性遗传(ADPKD)或常染色体隐性隐性多囊性肾脏疾病(ADPKD)胎儿肾脏中α-整联蛋白亚基(α1,α2,α3,α5和α6)和基底膜蛋白的分布( ARPKD)。将该分布与在正常胎儿和出生后肾脏以及胎儿囊性异型增生和Meckel综合征中观察到的分布进行了比较。与正常和囊性对照相比,在两种多囊性疾病(PKD)的正常和囊性收集导管细胞中均观察到了α1-整合素染色的显着增加。在PKD的囊肿上皮细胞和囊性对照中,整联蛋白亚基α2,α3和α6的分布是不规则的。在PKD收集导管细胞中特异性观察到的α1-亚基表达增加可能是ARPKD遗传缺陷的早期结果。在ADPKD中,它与报道的PKD1蛋白产物多囊蛋白的表达平行。在所有类型的囊肿中观察到的α2,α3和α6整联蛋白亚基的不规则表达表明,细胞/基质相互作用早期发生改变,并可能参与了囊肿的发展,也许是通过促进囊性细胞存活的失调而引起的。疾病。
  • 【基因组学,流行病学和常见的复杂疾病:让我们不要把婴儿和洗澡水一起扔掉!】 复制标题 收藏 收藏
    DOI:10.1093/ije/dyl214 复制DOI
    作者列表:Khoury MJ,Gwinn M
    BACKGROUND & AIMS: -2
    背景与目标: -2
  • 【腹腔镜切除胃肠道恶性疾病的研究】 复制标题 收藏 收藏
    DOI:10.1007/s001040050176 复制DOI
    作者列表:Rosenthal J,Philipps EH
    BACKGROUND & AIMS: As the importance of laparoscopic surgery for benign diseases of the gastrointestinal tract continues to grow, the application of this approach in cases of malignancy remains controversial. Although the concept of cancer recurrence in the area of surgical wounds is not new, the incidence of port site recurrence is the most obvious concern. Indications and contraindications for surgery as well as a standardized nomenclature describing the type of laparoscopic procedures being performed are some other issues that need to be clarified. Complete laparoscopic procedures or the combination of laparoscopy with open techniques can offer advantages and disadvantages that surgeons will have to take into consideration when making decisions. The skill of the operating team and the extent of disease define the boundaries of laparoscopic surgery possible. The continued research as well as development of intelligent instruments and standardized techniques might give laparoscopy a clear role in the treatment of abdominal malignancies.

    背景与目标: 随着腹腔镜手术对胃肠道良性疾病的重要性不断提高,这种方法在恶性肿瘤中的应用仍存在争议。尽管在外科伤口区域中癌症复发的概念并不新奇,但最明显的问题是港口部位复发的发生率。外科手术的适应症和禁忌症以及描述所进行的腹腔镜手术类型的标准化术语是需要澄清的其他一些问题。完整的腹腔镜检查程序或腹腔镜检查与开放技术的结合可提供利弊,而外科医生在做出决定时必须考虑这些利弊。手术团队的技能和疾病的程度决定了腹腔镜手术可能的范围。持续的研究以及智能仪器和标准化技术的发展可能使腹腔镜检查在治疗腹部恶性肿瘤方面发挥明显作用。

  • 【炎性风湿病中新的细胞因子靶标。】 复制标题 收藏 收藏
    DOI:10.1016/j.berh.2006.05.011 复制DOI
    作者列表:Connell L,McInnes IB
    BACKGROUND & AIMS: :With the advent of biological therapies, considerable advances have been achieved in the treatment of inflammatory arthritis. These have arisen primarily from studies elucidating mechanisms of pathophysiology and are best exemplified in the wide use of tumour necrosis factor (TNF) blockade in several rheumatic diseases. The identification of additional pro-inflammatory factors in rheumatic diseases and an understanding of their effector function, now offers major possibilities for the generation of novel therapeutics. To address unmet clinical need, such interventions will ideally fulfil several of the following criteria: (1) control of inflammation, (2) modulation of underlying immune dysfunction - promoting the re-establishment of immune tolerance, (3) protection of targeted tissues such as bone and cartilage - this should encompass promoting healing of previously damaged tissues, (4) preservation of host immune capability - to avoid profound immune suppression and (5) amelioration of co-morbidity associated with underlying inflammatory arthritis. This short review will consider those novel cytokine activities that represent optimal utility as therapeutic targets. Since we wish to reflect the current predominant research effort, we will focus primarily on rheumatoid arthritis (RA) based studies.
    背景与目标: 随着生物疗法的出现,在炎性关节炎的治疗方面取得了相当大的进步。这些主要来自阐明病理生理机制的研究,并且在几种风湿性疾病中广泛使用肿瘤坏死因子(TNF)阻断是最好的例证。风湿性疾病中其他促炎因子的鉴定以及对它们的效应器功能的了解,现在为产生新疗法提供了主要可能性。为了满足未满足的临床需求,这些干预措施将理想地满足以下几个标准:(1)控制炎症,(2)调节潜在的免疫功能障碍-促进免疫耐受的重建,(3)保护目标组织,例如作为骨骼和软骨-这应包括促进先前受损组织的愈合,(4)保持宿主免疫能力-避免深刻的免疫抑制,以及(5)减轻与潜在炎症性关节炎相关的合并症。这篇简短的评论将考虑那些代表最佳效用的新型细胞因子活性作为治疗靶标。由于我们希望反映当前的主要研究成果,因此我们将主要关注基于类风湿关节炎(RA)的研究。

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