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Prevalence of Cesarean Section at Georgetown Public Hospital Corporation, Guyana: An Institution-Based Cross-Sectional Study
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作者 Gary Joseph Cecil Boston Gbenankpon Mathias Houvessou 《Open Journal of Clinical Diagnostics》 2023年第3期29-47,共19页
The International Healthcare Community recommends that countries do not exceed a 15% rate for cesarean section (CS). Our objective was to determine the prevalence and factors associated with CS at GPHC from July to Se... The International Healthcare Community recommends that countries do not exceed a 15% rate for cesarean section (CS). Our objective was to determine the prevalence and factors associated with CS at GPHC from July to September 2022. Methods: A cross-sectional study was carried out and data were collected from 1296 mothers, who met the inclusion criteria, through face-to-face interviews after obtaining prior informed consent. We performed descriptive analyses both for the outcome and independent variables. Bivariate and multiple logistic regression were used to identify factors associated with CS with a p-value Results: The prevalence of CS at GPHC was 28.9% (95%CI: 26.5-31.5). Factors associated factors with CS were mothers aged 20 to 34 years (AOR: 1.56, 95%CI: 1.02 - 2.39, P = 0.039);mothers who received more than three minimum wages (AOR: 1.95, 95%CI: 1.29 - 2.97, P = 0.002) and who attended prenatal care at both public and private health facilities (AOR: 2.49, 95% CI: 1.19 - 5.22, P = 0.022). Likewise, the highest Odds of CS were observed in mothers with gestational hypertension (AOR: 2.00, 95%CI: 1.35 - 2.96, P Conclusion: The prevalence of CS is higher than the ideal rate recommended by the International Healthcare Community. More studies are needed to understand the reasons for such high prevalence at GPHC. 展开更多
关键词 Cesarean Section Delivery Georgetown Public Hospital Corporation GUYANA
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Ipilimumab associated colitis: An Ipi Colitis case series at Med Star Georgetown University Hospital
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作者 Pawan Rastogi Mohamed Sultan +2 位作者 Aline J Charabaty Michael B Atkins Mark C Mattar 《World Journal of Gastroenterology》 SCIE CAS 2015年第14期4373-4378,共6页
Although ipilimumab has been shown to improve survival in patients with metastatic melanoma and cause regression of metastatic renal cell carcinoma, the associated immune-related toxicities are of concern.The resultan... Although ipilimumab has been shown to improve survival in patients with metastatic melanoma and cause regression of metastatic renal cell carcinoma, the associated immune-related toxicities are of concern.The resultant T cell activation by this monoclonal antibody causes an increased immune response, which has been associated with many immune-regulated adverse effects.One of the most concerning effects is the development of colitis.Upwards to 8% of patients have been reported to develop colitis, with 5% being severe(Grades 3-4).While initial treatment of such adverse effects is generally comprised of supportive and symptomatic treatment, more severe cases warrant the use of high dose steroids.Furthermore, use of anti-TNF agents is usually reserved for those cases that prove to be refractory to steroids.We describe a systematic case review of seven patients who developed gastrointestinal symptoms following initiation of ipilimumab immunotherapy, and present the steps in their evaluation, treatment and outcomes at our institution. 展开更多
关键词 COLITIS IPILIMUMAB IMMUNOLOGY INFLIXIMAB Immune-re
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一种基于深度学习的新型针灸针自动计数的云服务系统:提高针灸安全性的策略
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作者 黄梓皓 韦君逸 +1 位作者 陈海勇 吴凤亮 《Digital Chinese Medicine》 CAS CSCD 2024年第1期40-46,共7页
目的病人针灸治疗时,漏针可能造成严重后果。为增强针灸安全性,本研究将开发一个基于深度学习的自动云端数针系统。方法本研究利用拍有针灸针的手机图片为曾预先训练的定向目标检测模型(Oriented R-CNN)进行转移学习,以开发一种能够自... 目的病人针灸治疗时,漏针可能造成严重后果。为增强针灸安全性,本研究将开发一个基于深度学习的自动云端数针系统。方法本研究利用拍有针灸针的手机图片为曾预先训练的定向目标检测模型(Oriented R-CNN)进行转移学习,以开发一种能够自动计算图片中针灸针数量的目标检测算法。我们首先拍摄了一个包含590张图片的训练集以及一个包含1025张图片的验证集。随后在带有NVIDIA Tesla T4图形处理器(GPU)的Google Colab环境中部署了MMRotate工具箱为模型进行训练。我们将训练的模型与Telegram bot手机小程序界面集成,并评估模型的准确率、精确率和召回率。本小程序中云端数针系统的速度则以端到端处理时间计算。结果在每张图片20根针的验证集情景中,我们的定向检测模型在准确率、精确率和召回率上分别达到96.49%、99.98%和99.84%,平均端到端处理时间为1.535秒。结论这项云服务系统在速度、准确性和可靠性上的提升展示了深度学习物体检测技术改进针灸实践的潜力。 展开更多
关键词 人工智能 电脑视觉 目标检测 针灸 病人安全
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促进糖尿病患者足溃疡愈合的干预措施指南(2023年更新版)——《国际糖尿病足工作组:糖尿病相关的足病预防与管理指南(2023)》的一部分 被引量:2
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作者 Pam Chen Nalini Campillo Vilorio +15 位作者 Ketan Dhatariya William Jeffcoate Ralf Lobmann Caroline McIntosh Alberto Piaggesi John Steinberg Prash Vas Vijay Viswanathan Stephanie Wu Fran Game on behalf of the International Working Group on the Diabetic Foot 杨彩哲 谷熠彬(译) 曹瑛 邹梦晨 许樟荣(审校) 《感染、炎症、修复》 2024年第1期23-51,共29页
创面处理的原则,包括清创、创面准备和使用涉及改变创面生理以促进愈合的新技术,在试图治愈慢性糖尿病相关的足溃疡时是至关重要的。此外,糖尿病相关的足溃疡的发病率和治疗成本不断上升,这就需要结合作为金标准的多学科治疗已有共识,... 创面处理的原则,包括清创、创面准备和使用涉及改变创面生理以促进愈合的新技术,在试图治愈慢性糖尿病相关的足溃疡时是至关重要的。此外,糖尿病相关的足溃疡的发病率和治疗成本不断上升,这就需要结合作为金标准的多学科治疗已有共识,运用高质量的疗效和成本效益证据来支持和加强慢性糖尿病相关的足溃疡创面愈合的干预措施。本指南是2023年国际糖尿病足工作组(IWGDF)针对促进糖尿病患者足溃疡愈合的干预措施的循证指南。它是对2019年IWGDF指南的更新。我们遵循推荐、评估、发展、评价分级(GRADE)方法,以患者-干预-对照-结果(PICO)形式设计临床问题从而得出重要结果,进行系统综述,制定评判表汇总,并为每个问题撰写推荐和理由。每条推荐的形式都是基于系统综述中发现的证据,并使用GRADE评判汇总项目,包括理想和不理想的效果、证据的可信度、对患者的价值、所需的资源、成本效益、公平性、可行性和可接受性;我们制定的推荐由作者同意并由独立专家和利益相关者审查。根据系统综述和从证据到决策过程的结果,我们提出29条推荐。我们对使用干预措施改善糖尿病患者足溃疡的愈合提出了一些有条件的支持性推荐。这些推荐包括蔗糖八硫酸盐敷料的使用,对手术后的创面使用负压疗法,使用胎盘衍生产品,使用自体白细胞、血小板、纤维蛋白贴剂,使用局部氧疗,以及使用高压氧,但我们强调在任何情况下这些推荐应在单独应用最佳标准治疗无法治愈伤口且有资源可用于干预的情况下使用。这些关于创面愈合的推荐应该有助于提高糖尿病伴足溃疡患者的疗效,我们希望这些推荐能得到广泛的实施。然而,尽管作为推荐基础的许多证据的准确性正在提高,但总体上仍然很差,我们鼓励在这一领域进行更多、质量更好的试验,包括那些有关卫生经济学分析的试验。 展开更多
关键词 糖尿病 足溃疡 干预 指南 国际糖尿病工作组
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公私相互激励与环境治理跨国公私伙伴关系的演化——以全球森林治理为例
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作者 余博闻 田圣新 《太平洋学报》 CSSCI 北大核心 2024年第7期43-57,共15页
由于森林破坏问题的复杂性,全球森林治理进程能够催生包含国家和各类非国家行为体的跨国公私伙伴关系。关于跨国公私伙伴关系的既有研究或聚焦绩效分析而忽视对伙伴关系特征及其演化规律的探究,或过度强调公私合作而忽视非协调性公私互... 由于森林破坏问题的复杂性,全球森林治理进程能够催生包含国家和各类非国家行为体的跨国公私伙伴关系。关于跨国公私伙伴关系的既有研究或聚焦绩效分析而忽视对伙伴关系特征及其演化规律的探究,或过度强调公私合作而忽视非协调性公私互动的激励效应,不利于全面理解森林治理跨国公私伙伴关系的演化。本文提出,以森林治理为代表的环境治理中的跨国公私伙伴关系并非一贯以公私协作为主基调,其内公、私部门的互动关系可呈现公有部门主导、私有部门主导和公私共治三种模式,其演化动力是公、私部门间的相互激励。一方面,公有部门的政治授权为私有部门参与环境治理提供初始激励,而多边环境谈判的僵局又能进一步激励私有部门独立采取跨国治理行动。另一方面,私有部门主导的创新性治理实践能够增强公有部门的治理能力和意愿,而私有部门主导的治理又可能出现逐底竞争和发展速度不足的问题,这又反过来激励公有部门的行动,促进公私共治模式的出现。全球森林治理中的跨国公私伙伴关系从国家主导(多边缔约),转变为私有部门主导(供应链治理),进而发展为公私共治模式。该演变进程的各阶段均体现了公、私部门相互激励的逻辑。 展开更多
关键词 跨国公私伙伴关系 全球森林治理 全球环境治理 多边缔约 供应链治理
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State,Communal,and Individual Identities in Iran
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作者 Mehran Kamrava 《International Relations and Diplomacy》 2024年第1期1-17,共17页
Cultural identity in Iran is comprised of four primary elements,each of which have proven to be highly resonant in the country political history.The vexing issue of modernity,and where individuals and collectivities a... Cultural identity in Iran is comprised of four primary elements,each of which have proven to be highly resonant in the country political history.The vexing issue of modernity,and where individuals and collectivities are placed in relation to it,has been one of the most prominent of these elements of Iranian identity.A second constitutive factor has been the role of the state as a deliberate crafter of cultural,in turn directly influencing the salience,interpretation,extent,and direction of modernity,or its antithesis,in Iran.Equally defining has been the role and significance of religion,which has emerged as a marker of individual and collective,as well as political,identities.Nationalism,and its compelling impulse across Iranian society especially from the early 1900s and continuing until today,has also emerged as an integral and inseparable feature of Iranian identity.Together,these four elements―modernity,a culturally intrusive state,religion and religiosity,and nationalism―constitute fluid yet constant,sometimes complementary and sometimes competing,dimensions of Iranian identity. 展开更多
关键词 Iranian identity NATIONALISM religiosity modernity social change
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Diagnostic Dilemma of Intracardiac Mass: Tumor versus Thrombus-Case Series and Systematic Review
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作者 Indira Acharya Ashik Pokharel +1 位作者 Raktim Ghosh Christopher J. Haas 《Journal of Biosciences and Medicines》 2024年第7期141-150,共10页
Background: The differential diagnosis for intracavitary cardiac masses is limited, typically including vegetations, tumors, or thrombi. Cardiac thrombi can often mimic cardiac tumors on imaging, creating a diagnostic... Background: The differential diagnosis for intracavitary cardiac masses is limited, typically including vegetations, tumors, or thrombi. Cardiac thrombi can often mimic cardiac tumors on imaging, creating a diagnostic challenge. Primary cardiac tumors are rare and usually benign, whereas most cardiac tumors result from metastases, commonly originating from malignancies in the breast, lung, or melanoma. Aim: This report highlights the importance of distinguishing various cardiac masses based on clinical presentations, clinical courses, and radiological features. Case Presentation: We describe two cases of cardiac masses with unique and diverse clinical features. Each case posed significant diagnostic challenges due to their distinct presentations and clinical progressions. Conclusion: These cases underscore the importance of considering both benign and metastatic origins in the differential diagnosis of intracavitary cardiac masses. Accurate differentiation between thrombi and tumors is crucial for appropriate management and treatment. 展开更多
关键词 ECHOCARDIOGRAPHY Cardiac Masses ARRHYTHMIAS Cardiac Magnetic Resonance Imaging Cardiac Thrombi
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Mitigating the Prevalence of Diabetic Retinopathy in the United States: Utilization of the Chronic Care Model as a Public Health Framework
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作者 Anthony Obiyom Kamalu Austin Ebhodaghe Ekeoba +5 位作者 Emeka Canice Uzor Christian Chukwuka Duru Obinna Princewill Anyatonwu Ogemdi Emmanuel Adiele Chibuike Reginald Amuzie Chima Lawrence Odoemenam 《Open Journal of Ophthalmology》 2024年第2期103-116,共14页
As the prevalence of diabetic retinopathy continues to be on the rise, the Chronic Care Model (CCM) offers a transformative, patient-focused approach for efficient diabetic retinopathy care, emphasizing the need for u... As the prevalence of diabetic retinopathy continues to be on the rise, the Chronic Care Model (CCM) offers a transformative, patient-focused approach for efficient diabetic retinopathy care, emphasizing the need for urgent and innovative strategies in the United States. The model integrates community resources, healthcare organizations, self-management support, delivery system design, decision support, and clinical information systems. Addressing challenges and solutions, the model emphasizes proactive and preventive measures, collaborative multidisciplinary care, technological integration, and overcoming resistance to change. This paper proposes the utilization of the Chronic Care Model (CCM) as a possible public health framework for comprehensive management of diabetic retinopathy in the United States. Implementing the CCM offers a comprehensive approach to diabetic retinopathy care, addressing both individual and systemic factors, essential for improving public health outcomes. 展开更多
关键词 Chronic Care Model DIABETES Diabetic Retinopathy Model Implementation Vision Care
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Integration of traditional,complementary,and alternative medicine with modern biomedicine:the scientization,evidence,and challenges for integration of traditional Chinese medicine
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作者 Zihao Zhang Raorao Li +7 位作者 Yu Chen Hui Yang Martin Fitzgerald Qiaochu Wang Ziwen Xu Nanxi Huang Dajun Lu Lu Luo 《Acupuncture and Herbal Medicine》 2024年第1期68-78,共11页
Traditional medicine has garnered significant global recognition,with an estimated 80%of the global population using it.Therefore,it is essential to fully understand the integration of traditional medicines into curre... Traditional medicine has garnered significant global recognition,with an estimated 80%of the global population using it.Therefore,it is essential to fully understand the integration of traditional medicines into current healthcare systems.This review aims to provide a comprehensive overview of the standard process to modernize traditional medicine scientifically in the context of modern biomedicine,further termed here as“scientization”.Specifically,we aim to summarize the advancements made in understanding the efficacy,effectiveness,and underlying mechanisms of herbal medicine.We also examined the transition from experience-to evidence-based medicine during acupuncture.Furthermore,we explore the development of universal safety and quality control standards.Finally,we discuss international trade and export markets for Chinese medical products.The development and integration of traditional medicine have allowed it to further improve human health,resulting in a more comprehensive health solution for the global population. 展开更多
关键词 ACUPUNCTURE Conventional medicine Herbal medicine MODERNIZATION Scientization Traditional Chinese medicine
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Comparison of Cognitive Registration Transrectal Ultrasound-Guided Targeted Biopsy of Prostate to Systematic 12-Core Biopsy: A Retrospective, Multicentre Study
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作者 Kevin Chang Yue Wei Lee Say Bob +4 位作者 Devindran Manoharan Liong Men Long Teoh Sze Yong Teo Rui Ling Chua Zi Wei 《Open Journal of Urology》 2024年第7期381-390,共10页
Introduction: Prostate cancer (PCa) is the third most prevalent cancer among Malaysian males, often diagnosed at advanced stages, leading to suboptimal outcomes. While transrectal ultrasound-guided systematic biopsy (... Introduction: Prostate cancer (PCa) is the third most prevalent cancer among Malaysian males, often diagnosed at advanced stages, leading to suboptimal outcomes. While transrectal ultrasound-guided systematic biopsy (TRUS-SB) is the primary diagnostic method, prebiopsy multiparametric magnetic resonance imaging (mpMRI) is gaining popularity in identifying suspicious lesions. This study addresses the lack of comprehensive investigations into the efficacy of cognitive registration TRUS targeted biopsy (COG-TB) compared to conventional TRUS-SB, considering the resource limitations of the Malaysian healthcare system. Materials and Methods: A retrospective cohort study was conducted in two Malaysian healthcare facilities. 116 adult patients with a prostate-specific antigen (PSA) level of more than 4 ng/mL who underwent both COG-TB and TRUS-SB between October 2020 and March 2022 were included. Primary outcomes were cancer detection rate and histopathological outcomes, including Gleason score. Results: COG-TB showed a higher overall cancer detection rate (50%) compared to TRUS-SB (44%). Clinically significant cancer detection rates were similar between COG-TB and TRUS-SB (37.1%). Further analysis revealed that both COG-TB and TRUS-SB detected clinically significant cancer in 30.2% of patients, did not detect it in 56.0%, and had conflicting findings in 16 patients (p Conclusion: COG-TB and TRUS-SB have comparable detection rates for clinically significant prostate cancer, with COG-TB showing a higher tendency to detect insignificant prostate cancer. Further studies comparing these methods are warranted. 展开更多
关键词 Prostate Cancer Multiparametric MRI Targeted Biopsy Cognitive Fusion Transrectal Ultrasound-Guided Biopsy
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Epidemiology of Mpox Outbreaks and Implications for Surveillance in Imo State, Nigeria
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作者 Adeniyi A. Adeniran Ebubechi C. Eronini +15 位作者 Olugbenga Asaolu Simisola Adedeji Adaeze Joy Ugwu Marcus Oludare Faith Ehiaghe Ugba Aibinuomo Ayomide Oluwaseyi Tella Adedamola Dania Oluyinka Olayiwola Olanike Suliat Oladele Tinuola Daniel Musa Haruna Adebayo O. Amao John O. Ibitoye Oluwagbemiga Obembe Christopher Obanubi Abdulmalik Abubakar 《Advances in Infectious Diseases》 CAS 2024年第1期206-212,共7页
Mpox disease is caused by a double-stranded DNA virus, genus Orthopoxvirus of the family Poxviridae. The incubation period is usually 6 to 13 days but can range from 5 to 21 days while symptoms and signs may persist f... Mpox disease is caused by a double-stranded DNA virus, genus Orthopoxvirus of the family Poxviridae. The incubation period is usually 6 to 13 days but can range from 5 to 21 days while symptoms and signs may persist for 2 to 5 weeks. Although, the clinical features are usually less severe when compared to the deadly smallpox, the disease can be fatal with case fatality rate between 1% and 10%. In Imo State, Nigeria, there has been a changing epidemiology of the disease in the last 6 years and the frequency and geographic distribution of cases have progressively increased. This study aims to conduct a review of the disease epidemiology between 2017 and 2023 and implications for surveillance in Imo State. Surveillance data from the Surveillance Outbreak Response and Management System (SORMAS) was extracted between January 2017 and December 2023 across the 27 Local Government Areas (LGAs) of Imo State. A line list of 231 suspected cases was downloaded into an excel template and analyzed using SPSS<sup>®</sup> version 20 software. Analysis was done using descriptive statistics and associations were tested using Fischer’s exact at 0.05 level of significance. Of the 231 suspected cases, 57.1% (132) were males, 42.9% (99) were females and the modal age group was between the ages of 0 - 4 (32.5%). Eight (8) LGAs (districts) accounted for 71% (n = 164) of all the suspected cases. 21.2% (49) were confirmed positive, 27 males (55.1%) and 22 females (44.9%) (p > 0.05). Modal age group was 20 - 24 (22.4%, n = 11), 18% (9) were children under 14 years, p > 0.05. Case fatality rate was 8% (n = 4). There was no significant association between mortality and age group. Five (5) LGAs accounted for about 60% (29) of all confirmed cases. These LGAs contribute only 20% to the total population in the State. Only 5.6% and 4% of suspected and confirmed cases, respectively, had knowledge of contact with an infectious source. The study described the epidemiology of Mpox outbreaks between 2017 and 2023 and the findings have significant implications on detection and outbreak response activities. 展开更多
关键词 Mpox EPIDEMIOLOGY OUTBREAK SURVEILLANCE
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AT_1R基因多态性与原发性高血压中医证型及降压中药疗效的关系 被引量:36
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作者 卢全生 雷燕 陈可冀 《中国中西医结合杂志》 CAS CSCD 北大核心 2005年第8期682-686,共5页
目的观察国人原发性高血压(essentialhypertension,EH)患者血管紧张素Ⅱ(AngⅡ)一型受体(AT1R)基因A1166C多态性的分布,及其与高血压中医辨证分型和降压药物疗效的关系。方法测定206例汉族EH患者和86名汉族健康人的血压、体重指数、空... 目的观察国人原发性高血压(essentialhypertension,EH)患者血管紧张素Ⅱ(AngⅡ)一型受体(AT1R)基因A1166C多态性的分布,及其与高血压中医辨证分型和降压药物疗效的关系。方法测定206例汉族EH患者和86名汉族健康人的血压、体重指数、空腹血糖、胆固醇、甘油三酯浓度以及血浆AngⅡ、内皮素(ET)、降钙素基因相关肽(CGRP)水平。用盐析法提取外周血白细胞DNA,PCR加限制性酶切方法检测AT1R的1166位基因突变。根据高血压中医辨证标准对206例高血压病患者进行辨证分型,比较各中医证型的基因分布;分别用清心胶囊和卡托普利治疗阴虚阳亢型高血压患者34例与32例,观察其降压效果与基因型分布的关系。结果(1)高血压组除收缩压、舒张压显著高于正常对照组外,体重指数、空腹血糖及血脂、血浆相关激素水平两组比较差异无显著性;(2)EH患者AT1R基因AC加CC基因型的比例为0·126,较正常对照组0·047显著增高(P<0·01),C等位基因分布频率也明显高于正常对照组,分别为0·068、0·023(P<0·05);而男性与女性之间,AT1R基因型和等位基因分布频率,差异均无显著性;(3)基因分型与临床表型:AA基因型与AC加CC基因型间收缩压、舒张压、血糖、血脂、血浆AngⅡ、ET、CGRP水平经t检验,差异无显著性(P>0·05);(4)基因分型与中医分型:高血压病各证型中AA基因型与AC加CC基因型分布,差异亦无显著性(P>0·05);(5)基因分型与降压疗效:卡托普利和清心胶囊对不同基因型高血压患者均有效,各治疗组中AA与AC加CC基因型高血压患者降压效果相近。结论在中国汉族人群中,AC基因型与原发性高血压有关,C等位基因可能是高血压的一个易感基因;而高血压病中医辨证分型可能与是否携带C等位基因无关,清心胶囊和卡托普利的降压效应与是否携带C1166等位基因无关。在不同基因型的EH患者中,其血压、血糖、血脂、血浆AngⅡ、ET、CGRP未见明显差异,提示基因型对高血压的影响可能未通过糖脂代谢、血浆ET、CGRP、AngⅡ系统。 展开更多
关键词 原发性高血压 血管紧张素Ⅱ一型受体 基因多态性 中医证型 清心胶囊 AT1R基因多态性 降压效果 降钙素基因相关肽(CGRP) 血管紧张素Ⅱ(AngⅡ) 中药疗效
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白念珠菌ALS3、SSA1基因表达在念珠菌性阴道炎免疫机制中的作用 被引量:10
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作者 高盈 王琼 +6 位作者 梁官钊 佘晓东 史冬梅 沈永年 苏晓红 李冬梅 刘维达 《中国真菌学杂志》 CSCD 2019年第2期65-69,共5页
目的探讨白念珠菌ALS3、SSA1基因缺失对阴道上皮细胞激发免疫反应的作用。方法培养白念珠菌野生株及ALS3、SSA1基因敲除株(SC5314、Δals3、Δssa1),对其进行形态测定。按不同MOI感染人阴道上皮细胞系VK2/E6E7细胞,通过台盼蓝染色观察... 目的探讨白念珠菌ALS3、SSA1基因缺失对阴道上皮细胞激发免疫反应的作用。方法培养白念珠菌野生株及ALS3、SSA1基因敲除株(SC5314、Δals3、Δssa1),对其进行形态测定。按不同MOI感染人阴道上皮细胞系VK2/E6E7细胞,通过台盼蓝染色观察和乳酸脱氢酶(LDH)活性检测,评价不同MOI白念珠菌对上皮细胞的损伤作用;使用酶联免疫吸附试验(ELISA)评估感染过程中炎性细胞因子及趋化因子在共培养上清中的差异。结果 ALS3基因的缺失对白念珠菌芽管长度影响差异无统计学意义,而SSA1基因的缺失与其他两个菌株相比芽管长度减少约30%~40%(P<0.001)。台盼蓝染色观察及LDH测定发现,3株菌在感染上皮细胞时,其细胞损伤能力均与菌载量成正比;与野生型相比,Δssa1突变体在相同比率感染上皮细胞时,细胞损伤能力明显降低,且差异有统计学意义(P<0.05),Δals3突变株影响较小,甚至略微升高。检测炎性细胞因子及趋化因子发现,突变株在诱导上皮细胞产生促炎因子及趋化因子(GM-CSF、G-CSF、IL-1α、IL-8)的能力上明显减弱,差异均有统计学意义(P<0.05)。结论 ALS3和SSA1基因表达在阴道上皮细胞抗白念珠菌感染的局部免疫应答过程中可能起到重要作用,且SSA1基因表达意义更大。 展开更多
关键词 阴道上皮细胞 白念珠菌 ALS3 SSA1 免疫
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两种基因重组免疫毒素导向治疗乳腺癌的细胞毒活性研究 被引量:5
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作者 王劲松 王深明 +2 位作者 杨大俊 常光其 陈国锐 《癌症》 SCIE CAS CSCD 北大核心 2001年第11期1241-1245,共5页
目的:探讨HELβ1-PE33、HELβ1-PE38KDEL两种基因重组免疫毒素对乳腺癌细胞的细胞毒活性。方法:构建亚克隆质粒pHELβ1-PE33;诱导生成、纯化HELβ1-PE33蛋白,并用凝胶电泳法检测其与HELβ1-PE38KDEL蛋白纯度;采用MTT法、软琼脂集落形成... 目的:探讨HELβ1-PE33、HELβ1-PE38KDEL两种基因重组免疫毒素对乳腺癌细胞的细胞毒活性。方法:构建亚克隆质粒pHELβ1-PE33;诱导生成、纯化HELβ1-PE33蛋白,并用凝胶电泳法检测其与HELβ1-PE38KDEL蛋白纯度;采用MTT法、软琼脂集落形成法检测这两种蛋白对乳腺癌细胞增殖的影响,比较两种蛋白在不同的乳腺癌细胞系中的细胞毒活性。结果:纯化后的两种蛋白均有导向作用,其纯度均超过98%。在免疫毒素敏感乳腺癌细胞内,MTT实验表明HELβ1-PE38KDEL对DY36T2、MDA-MB-453、47T1LZ1、BT474M1、SKBR3的IC50分别为(0.25±0.02)ng/ml、(0.35±0.05)ng/ml、(0.02±0.02)ng/ml、(0.02±0.02)ng/ml、(20.3±0.01)ng/ml,而HELβ1-PE33的IC50分别为(5.90±0.05)ng/ml、(3.91±0.11)ng/ml、(0.09±0.02)ng/ml、(0.06±0.05)ng/ml、(125.00±0.12)ng/ml、(10.80±0.01)ng/ml,两者的细胞毒活性在统计学上有显著意义(P<0.01);软琼脂集落形成实验表明HELβ1-PE38KDEL对MDA-MB-453、BT474M1的IC50分别为(0.05±0.01)、(0.005±0.000)ng/ml,而HELβ1-PE33对上述两种细胞的IC50则为(5.00±0.02)ng/ml和(0.05±0.01)ng/ml,二者的细胞毒活性在统计学上有显著意义(P<0.01)。HELβ1-PE33和HELβ1-PE38KDEL对乳癌细胞抑制作用的时间效? 展开更多
关键词 乳腺癌 导向治疗 免疫毒素 基因重组 细胞毒
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免疫毒素与顺铂协同杀伤肿瘤细胞机制的探讨 被引量:5
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作者 王劲松 王深明 +1 位作者 陈国锐 杨大俊 《癌症》 SCIE CAS CSCD 北大核心 2002年第4期360-363,共4页
背景与目的:免疫毒素HELβ-PE38KDEL(HeregulinEGFlikedomainβ1-PsedomonasAeurginosa38KDEL,本文简称ITH)已经被证实是一种具有特异性杀伤erbB2、3、4阳性乳腺癌细胞的新的生物学制剂,然而它与化疗药物的联合作用效果目前尚未有报道... 背景与目的:免疫毒素HELβ-PE38KDEL(HeregulinEGFlikedomainβ1-PsedomonasAeurginosa38KDEL,本文简称ITH)已经被证实是一种具有特异性杀伤erbB2、3、4阳性乳腺癌细胞的新的生物学制剂,然而它与化疗药物的联合作用效果目前尚未有报道。本文探讨ITH与化疗药物顺铂(DDP)的协同抗肿瘤作用。方法:采用AnnexinV结合实验和Westernblot检测乳腺癌细胞MDA-MB-453、2LMP和胃癌细胞N87分别在ITH和DDP单独及联合用药前后的细胞凋亡变化。结果:在高表达erbB-2、3、4的MDA-MB-453和N87中,联合用药组和单药组相比,凋亡细胞成倍增加(P<0.01);而在低表达erbB-2、3、4的2LMP,联合用药组和单药组相比,凋亡细胞无明显增加(P>0.05)。MDA-MB-453和N87细胞在联合用药组中PARP、caspase-3降解增加,bcl-2、mp53过度表达受抑制;而2LMP细胞中PARP、caspase-3降解无增加,bcl-2、mp53过度表达未受抑制。结论:ITH和DDP联合后可促进高表达erbB-2、3、4的乳腺癌细胞凋亡,这可能是两者协同作用的机制之一。 展开更多
关键词 肿瘤细胞 凋亡 顺铂 免疫毒素 协同作用
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TR6在人乳腺癌中的功能、表达和意义 被引量:12
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作者 王鲁平 陈健 +6 位作者 宁浩勇 刘光 丁华野 虞积耀 Charles B Underhill 张鲁榕 《诊断病理学杂志》 CSCD 2005年第2期133-136,i013,共5页
目的 研究TR6功能并探讨其在人乳腺癌中的表达及意义。方法 类似Elisa及3H掺入方法 ,研究TR6对乳腺癌MDA4 35细胞生长的作用及机制。Western印迹法检测 5例新鲜乳腺癌组织及MDA4 35、ML-2 0TR6的表达。免疫组化ABC法检测TR6在 2 9例... 目的 研究TR6功能并探讨其在人乳腺癌中的表达及意义。方法 类似Elisa及3H掺入方法 ,研究TR6对乳腺癌MDA4 35细胞生长的作用及机制。Western印迹法检测 5例新鲜乳腺癌组织及MDA4 35、ML-2 0TR6的表达。免疫组化ABC法检测TR6在 2 9例乳腺癌组织、2 0例转移淋巴结及 4例乳腺良性病变中的表达情况 ,分析其与临床病理特征之间的关系。结果 在加入内外源Fas-L后 ,TR6对乳腺癌MDA4 35细胞系生长具有明显的促进作用 ,当应用TR6抗体中和TR6后 ,这一作用被减弱。免疫组化示TR6在乳腺良性病变无表达 (0 /4) ,2 9例乳腺癌组织中 18例 (6 2 % )呈阳性表达 ,其中不伴有淋巴结转移的乳腺癌 4 /9(44 % )呈阳性表达 ,伴有淋巴结转移 14 /2 0 (70 % )呈阳性表达。 2 0例乳腺淋巴结转移组织中 16例 (80 % )呈阳性表达。结论 与良性乳腺病变相比 ,TR6在乳腺癌中表达增高 ,伴有淋巴结转移的乳腺癌TR6表达率有明显增高倾向。通过阻断Fas-L的抗凋亡作用 ,对肿瘤细胞生长具有明显的保护作用。 展开更多
关键词 乳腺癌 TR6 免疫组化
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The First Pilot Epigenetic Type Improvement of Neuropsychiatric Symptoms in a Polymorphic Dopamine D2 (-DRD2/ANKK (Taq1A)), OPRM1 (A/G), DRD3 (C/T), and MAOA (4R) Compromised Preadolescence Male with Putative PANDAS/CANS: Positive Clinical Outcome with Precision-Guided DNA Testing and Pro-Dopamine Regulation (KB220) and Antibacterial Therapies
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作者 Kenneth Blum Igor Elman +23 位作者 David Han Colin Hanna David Baron Ashim Gupta Shan Kazmi Jag Khalsa Debasis Bagchi Thomas McLaughlin Rajendra D. Badgaiyan Edward J. Modestino Drew Edwards Catherine A. Dennen Eric R. Braverman Abdalla Bowirrat Keerthy Sunder Kevin Murphy Nicole Jafari Foojan Zeine Paul R. Carney Mark S. Gold Kai-Uwe Lewandowski Alireza Sharafshah Aryeh R. Pollack Panayotis K. Thanos 《Open Journal of Immunology》 2024年第3期60-86,共27页
Pediatric autoimmune neuropsychiatric disorders associated with or without streptococcal and other bacterial infections (PANDAS/CANS) are emerging as a featured pediatric disorder. Although there is some controversy r... Pediatric autoimmune neuropsychiatric disorders associated with or without streptococcal and other bacterial infections (PANDAS/CANS) are emerging as a featured pediatric disorder. Although there is some controversy regarding treatment approaches, especially related to the behavioral sequelae, we have hypothesized in other published work that it is characterized by the rapid onset of Reward Deficiency Syndrome (RDS) in children. We propose utilizing a multi-systems biological approach involving the coupling of genetic addiction risk testing and pro-dopamine regulation (KB220/POLYGEN®) to help induce “dopamine homeostasis” in patients with PANDAS, especially those with known DNA-induced hypodopaminergia. This case study examines a 12-year-old Caucasian male with no prior psychiatric issues who presented with a sudden onset of severe anxiety, depression, emotional liability, and suicidal ideation. The patient underwent genotyping and the genetic addiction risk score (GARS) testing, which revealed risk polymorphisms in the dopamine D2 (-DRD2/ANKK (Taq1A), OPRM1 (A/G), DRD3 (C/T), and MAOA (4R) genes. These polymorphisms have been linked to hypodopaminergia. The patient was subsequently placed on research ID-KB220ZPBMPOLY (POLYGEN®), and albeit the possibility of bias, based upon self and parental assessment, a marked rapid improvement in psychiatric symptoms was observed. In the second phase of treatment (102 days utilizing KB220), the patient received standard antibody testing, which was positive for Lyme. Antibacterial therapy started immediately, and KB220z was discontinued to provide a wash-out period. A monotonic trend analysis was performed on each outcome measure, and a consistently decreasing trend was observed utilizing antibacterial therapy. Our recommendation, albeit only one case, is to utilize and further research a combined therapeutic approach, involving precision-guided DNA testing and pro-dopamine regulation along with antibacterial therapy, as well as glutathione to address offensive enhanced cytokines, in patients with suspected PANDAS/CANS. 展开更多
关键词 PANDAS CANS Genetic Addiction Risk Testing (GARS) Pro-Dopamine Regulation Hypodopaminergia Polymorphisms Antibacterial Therapy Infections
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多巴胺D_3受体激动剂对肾脏G蛋白亚基Gα_(12)、Gα_(13)与D_3受体耦联的影响 被引量:3
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作者 杨剑 于长青 +5 位作者 石伟彬 傅春江 何多芬 Laureano D. Asico Pedro A. Jose 曾春雨 《中华高血压杂志》 CAS CSCD 北大核心 2008年第9期807-811,共5页
目的观察多巴胺 D_3受体激动剂对肾脏 G 蛋白亚基 Gα_(12)和 Gα_(13)与 D_3受体耦联的影响。方法以WKY(Wistar-Kyoto)大鼠与自发性高血压大鼠(SHR)及其来源的肾脏皮质膜、肾脏刷状缘膜(BBM)以及近曲小管上皮细胞株(RPT)为研究对象,利... 目的观察多巴胺 D_3受体激动剂对肾脏 G 蛋白亚基 Gα_(12)和 Gα_(13)与 D_3受体耦联的影响。方法以WKY(Wistar-Kyoto)大鼠与自发性高血压大鼠(SHR)及其来源的肾脏皮质膜、肾脏刷状缘膜(BBM)以及近曲小管上皮细胞株(RPT)为研究对象,利用多巴胺 D_3受体激动剂 PD128907刺激 D_3受体,运用免疫共沉淀观察PD128907对 D_3受体与 Gα_(12)、Gα_(13)的相互关联的影响,并在 WKY 与 SHR 中对比关联改变与功能差异。结果 D_3/Gα_(12)与 D_3/Gα_(13)之间在 WKY 与 SHR 中均存在共连接。PD128907刺激 D_3受体后,在 WKY 中可明显增加 D_3/Gα_(12)以及 D_3/Gα_(13)之间的连接程度;在 SHR 中却显著降低 D_3/Gα_(12)以及 D_3/Gα_(13)之间的连接。其中,D_3/Gα_(13)在 SHR 中的基础连接程度明显强于 WKY,D_3/Gα_(12)连接基础状态在 WKY 与 SHR 之间无明显差异。采用 PD128907直接灌注 WKY 和 SHR 大鼠右肾动脉,发现 PD128907可以明显增强 WKY 的尿钠排泄率(FE_(Na)),但却对 SHR 的 FE_(Na)没有影响。结论 D_3受体激动剂可明显调节 D_3/Gα_(12)以及 D_3/Gα_(13)之间的连接程度,该调节作用异常可能在高血压的发生发展中发挥一定作用。 展开更多
关键词 多巴胺D3受体 Gα12 Gα13 肾脏 高血压
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基因重组毒素HELβ1-PE38KDEL与顺铂杀伤乳腺癌细胞系的协同作用 被引量:2
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作者 王劲松 王深明 +2 位作者 陈国锐 李晓曦 杨大俊 《中国癌症杂志》 CAS CSCD 2002年第1期35-37,共3页
目的 :研究HELβ1 PE38KDEL与常规化疗药物顺铂杀伤乳腺癌细胞系的协同作用。 方法 :采用细胞增殖、软琼脂集落形成等实验 ,测定HELβ1 PE38KDEL和顺铂对高表达erbB2、3、4的乳腺癌细胞MDA MB 4 5 3,胃癌细胞N87的协同作用 ,并以低表达e... 目的 :研究HELβ1 PE38KDEL与常规化疗药物顺铂杀伤乳腺癌细胞系的协同作用。 方法 :采用细胞增殖、软琼脂集落形成等实验 ,测定HELβ1 PE38KDEL和顺铂对高表达erbB2、3、4的乳腺癌细胞MDA MB 4 5 3,胃癌细胞N87的协同作用 ,并以低表达erbB2、3、4的乳腺癌细胞 2LMP为对照。结果 :HELβ1 PE38KDEL和顺铂联用对MDA MB 4 5 3和N87具有协同杀伤作用 (CI <1)。对 2LMP无协同作用 (CI >1)。结论 :对高表达erbB 2、3、4的乳腺癌细胞 ,基因重组毒素HELβ1 PE38KDEL与顺铂联用具有协同杀伤作用。 展开更多
关键词 乳腺肿瘤 基因治疗 化疗 协同作用 基因重组毒素 HELβ1-PE38KDEL顺铂
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时间因素对电离辐射后AT细胞hTERT mRNA表达的影响 被引量:3
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作者 盛方军 曹建平 +5 位作者 朱巍 朱财英 冯爽 宋建元 李翀 樊赛军 《苏州大学学报(医学版)》 CAS 北大核心 2006年第4期535-538,共4页
目的研究时间因素对电离辐射后共济失调性毛细血管扩张(ataxia telangiectasia,AT)综合征患者皮肤的成纤维细胞系AT细胞(AT5BIVA)hTERT mRNA表达的影响。方法以源于正常人皮肤的成纤维细胞系GM细胞(GM0639)为对照,细胞经5 Gy(剂量率1.0 ... 目的研究时间因素对电离辐射后共济失调性毛细血管扩张(ataxia telangiectasia,AT)综合征患者皮肤的成纤维细胞系AT细胞(AT5BIVA)hTERT mRNA表达的影响。方法以源于正常人皮肤的成纤维细胞系GM细胞(GM0639)为对照,细胞经5 Gy(剂量率1.0 Gy/min)60Coγ射线照射后继续培养2、24、48、72 h,应用RT-PCR法,观察AT细胞、ATM+-AT细胞和GM细胞的hTERT mRNA表达的变化。结果照射后细胞hTERTmRNA的表达随培养时间的增加而增加;AT细胞hTERT mRNA的相对表达量高于ATM+-AT细胞和GM细胞(P<0.05),后两者无显著性差异(P>0.05)。结论电离辐射能诱导细胞hTERT mRNA的持续表达;ATM能下调AT细胞hTERT mRNA的表达。 展开更多
关键词 AT细胞 ATM 电离辐射 端粒酶逆转录酶
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