screenings

Screenings
  • 文章类型: Journal Article
    突变在塑造物种进化和驯化的轨迹和结果中起着关键作用。100多年来,玉米(Zeamays)一直是遗传研究的主要作物和模型。随着成簇的定期间隔短回文重复(CRISPR)驱动的定点诱变和基因组编辑(GE)的到来,玉米突变研究再次成为人们关注的焦点。如果我们将玉米强大的生理和遗传特征与已经可用且不断增加的CRISPR-Cas工具箱相结合,其未来的性状工程前景非常看好。这篇综述旨在概述分析正向遗传学的玉米筛选研究的进展和学习。自然变异和反向遗传学,专注于最近的GE方法。我们将重点介绍每种策略和资源如何有助于我们对玉米自然和诱导性状变异性的理解,以及如何将这些信息用于设计下一代突变筛选。
    Mutations play a pivotal role in shaping the trajectory and outcomes of a species evolution and domestication. Maize (Zea mays) has been a major staple crop and model for genetic research for more than 100 yr. With the arrival of site-directed mutagenesis and genome editing (GE) driven by the Clustered Regularly Interspaced Short Palindromic Repeats (CRISPR), maize mutational research is once again in the spotlight. If we combine the powerful physiological and genetic characteristics of maize with the already available and ever increasing toolbox of CRISPR-Cas, prospects for its future trait engineering are very promising. This review aimed to give an overview of the progression and learnings of maize screening studies analyzing forward genetics, natural variation and reverse genetics to focus on recent GE approaches. We will highlight how each strategy and resource has contributed to our understanding of maize natural and induced trait variability and how this information could be used to design the next generation of mutational screenings.
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  • 文章类型: Journal Article
    背景:鉴于人类免疫缺陷病毒(HIV)和人乳头瘤病毒(HPV)感染之间的协同关系,了解HIV感染女性中高危型HPV(HR-HPV)的基因型患病率和相关因素对于制定有针对性的干预措施至关重要,例如适当的筛查测试和有效的基因型特异性疫苗接种.目标:我们确定了任何HR-HPV和多种HR-HPV感染的患病率,并确定了拉各斯HIV感染(WLHIV)女性队列中的相关因素。尼日利亚。方法:这项描述性横断面研究分析了从2023年7月至2024年3月在拉各斯大学教学医院HIV治疗中心进行的COMPASS-DUST研究的一部分进行宫颈癌筛查的516WLHIV的数据。采用多元二元logistic回归模型探讨HR-HPV和多种HR-HPV感染的相关因素。结果:在516名WLHIV参与者中(平均年龄,46.5±7.3年),总体HR-HPV患病率为13.4%(95%CI,10.6-16.6),HPV16/18分类为3.3%(95%CI,1.9-5.2),其他HR-HPV基因型分类为11.6%(95%CI,9.0-14.7)。19名女性(3.7%;95%CI,2.2-5.7)患有多种HR-HPV基因型感染。近期血清CD4+细胞计数≤560个细胞/μL(调整OR3.32;95%CI1.06-10.38)和HPV16/18基因型感染(调整OR38.98;95%CI11.93-127.37)与多种HR-HPV感染风险增加独立相关。结论:这项研究的结果为HR-HPV感染的流行病学提供了有价值的见解,并强调了需要量身定制的干预措施和持续监测。通过有针对性的筛查来应对这些挑战,有效的ART管理,和疫苗接种计划,我们可以改善这一脆弱人群的健康状况,减轻宫颈癌的负担。
    UNASSIGNED: Given the synergistic relationship between human immunodeficiency virus (HIV) and human papillomavirus (HPV) infections, knowledge of the genotypic prevalence and associated factors of high-risk HPV (HR-HPV) among HIV-infected women is crucial for developing targeted interventions such as appropriate screening tests and effective genotype-specific vaccination.
    UNASSIGNED: We determined the prevalence of any HR-HPV and multiple HR-HPV infections and identified associated factors among a cohort of women living with HIV infections (WLHIV) in Lagos, Nigeria.
    UNASSIGNED: This descriptive cross-sectional study analysed the data of 516 WLHIV who underwent cervical cancer screening as part of the COMPASS-DUST study at the HIV treatment centre of Lagos University Teaching Hospital from July 2023 to March 2024. Multivariable binary logistic regression models were performed to explore factors associated with HR-HPV and multiple HR-HPV infections.
    UNASSIGNED: Among the 516 WLHIV enrolled (mean age, 46.5±7.3 years), the overall HR-HPV prevalence was 13.4% (95% CI, 10.6-16.6), disaggregated as 3.3% for HPV16/18 (95% CI, 1.9-5.2) and 11.6% for other HR-HPV genotypes (95% CI, 9.0-14.7). Nineteen women (3.7%; 95% CI, 2.2-5.7)had multiple HR-HPV genotype infections. Having a recent serum CD4+ cell count ≤560 cells/μL (adjusted OR 3.32; 95% CI 1.06-10.38) and HPV 16/18 genotype infections (adjusted OR 38.98; 95% CI 11.93-127.37) were independently associated with an increased risk of multiple HR-HPV infections.
    UNASSIGNED: The findings of this study provide valuable insights into the epidemiology of HR-HPV infections and highlight the need for tailored interventions and continuous monitoring. By addressing these challenges through targeted screening, effective ART management, and vaccination programs, we can improve health outcomes and reduce the burden of cervical cancer in this vulnerable population.
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  • 文章类型: Journal Article
    背景:异基因造血细胞移植(HCT)存活者可从移植后并发症的常规筛查中获益。然而,正式生存努力对提高筛查依从性的影响尚不确定.
    目的:评估正式的HCT生存计划对提高筛查依从性的效果方法:我们对具有主要和专业咨询成分的学术正式HCT生存计划进行了回顾性分析。我们纳入了接受同种异体HCT并且在HCT后1年存活且无复发的患者。我们排除了HCT或转院治疗后<2年死亡的患者。我们测量了筛查对心血管疾病的依从性,肺,眼,继发性癌症,和内分泌评估。主要结果是在HCT后2年之前,每个筛查领域完成≥1次评估的患者比例。我们使用多变量逻辑和Cox比例风险回归检查了3个时间段的筛查依从性:生存前(2012-2014)和2个生存后(2016-2018,2019-2021)。
    结果:410例患者(2012-2014年:n=136,2016-2018年:n=153,2019-2021年:n=121)。与存活前相比(16.9%),2016-2018年患者(47.7%,OR=4.9,p<0.0001)和2019-2021年(34.7%,OR=2.7,p=0.001)更有可能在每个筛选域完成≥1次评估。除2019-2021年的肺功能测试外,与生存前相比,生存期完成生存评估的中位时间较短。在2016-2018年和2019-2021年完成正式HCT生存咨询的患者更有可能在每个筛查领域完成≥1次评估(OR=5.1,p=0.0004)。生存咨询对2016-2018年和2019-2021年的主要筛查结果具有相似的影响(咨询*时间相互作用OR:2.5,p=0.2)。然而,在2019-2021年接受咨询的患者更有可能完成所有筛查(咨询*时间交互:OR=5.7,p=0.03).
    结论:我们的HCT生存计划具有主要和特殊成分,可提高筛查依从性。需要更多的研究来评估疗效,传播,并实施正式的HCT生存计划。
    Allogeneic hematopoietic cell transplantation (HCT) survivors may benefit from routine screening for post-transplant complications. However, the impact of formal survivorship efforts to promote screening adherence is uncertain. The effect of a formal HCT survivorship program to promote screening adherence was evaluated. We conducted a retrospective analysis of an academic formal HCT survivorship program with primary and specialty consult components. We included patients who underwent allogeneic HCT and were alive and relapse-free 1-year post-HCT. We excluded patients who died <2-year post-HCT or transferred care. We measured screening adherence to cardiovascular, pulmonary, ocular, secondary cancer, and endocrine evaluations. The primary outcome was proportion of patients completing ≥1 evaluation per screening domain prior to 2-year post-HCT. We examined screening adherence during 3 time periods: presurvivorship (2012 to 2014) and 2 postsurvivorship (2016 to 2018 and 2019 to 2021) using multivariate logistic and Cox proportional hazards regression. Four hundred ten patients (2012 to 2014: n = 136, 2016 to 2018: n = 153, 2019 to 2021: n = 121) were included. Compared to the presurvivorship period (16.9%), patients in 2016 to 2018 (47.7%, odds ratio [OR] = 4.9, P < .0001) and 2019 to 2021 (34.7%, OR = 2.7, P = .001) were more likely to complete ≥1 evaluation per screening domain. Except for pulmonary function tests in 2019 to 2021, median time to completion of survivorship evaluations was shorter in the survivorship periods compared to presurvivorship. Patients who completed a formal HCT survivorship consult in 2016 to 2018 and 2019 to 2021 were more likely to complete ≥1 evaluation per screening domain (OR = 5.1, P = .0004). Survivorship consult had similar effect on the primary screening outcome in 2016 to 2018 and 2019 to 2021 (consult × time interaction OR: 2.5, P = .2). However, patients who received a consult in 2019 to 2021 were more likely to complete all screenings (consult × time interaction: OR = 5.7, P = .03). Our HCT survivorship program with primary and specialty components improved screening adherence. Additional studies are needed to evaluate efficacy, dissemination, and implementation of formal HCT survivorship programs.
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  • 文章类型: Journal Article
    纳米乳液由几种成分的组合组成,如油,水,乳化剂,表面活性剂和助表面活性剂。生产纳米乳液的各种技术包括高能和低能方法,如高压均化,微流化,射流分散器和相转化方法。制剂的性质可以受到诸如组合物、浓度,液滴的大小和电荷,这反过来又会影响制造技术。表征是通过评估几个因素,如物理性质,pH分析,粘度测量和折射率测定。本文全面介绍了纳米乳液技术的最新发展,专注于它们的广泛应用和有希望的未来可能性。它还讨论了通过几种方法施用纳米乳剂。
    Nanoemulsions consist of a combination of several components such as oil, water, emulsifiers, surfactants and cosurfactants. Various techniques for producing nanoemulsions include high-energy and low-energy approaches such as high-pressure homogenization, microfluidization, jet disperser and phase inversion methods. The properties of a formulation can be influenced by elements such as the composition, concentration, size and charge of droplets, which in turn can affect the technique of manufacture. Characterization is conducted by the assessment of several factors such as physical properties, pH analysis, viscosity measurement and refractive index determination. This article offers a thorough examination of the latest developments in nanoemulsion technology, with a focus on their wide-ranging applications and promising future possibilities. It also discusses the administration of nanoemulsions through several methods.
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  • 文章类型: Letter
    暂无摘要。
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  • 文章类型: Journal Article
    目的虽然社区眼科筛查计划的目的是减少医疗保健差距,这些计划的有效性受到参与者后续依从性的限制.本综述的目的是调查可能促进或阻碍参与者在社区眼部筛查后参加后续眼科检查的因素,并确定提高随访率的干预措施。方法文献综述,PubMed,WebofScience,Embase,Proquest/全球健康图书馆,搜索和GoogleScholar数据库,以确定2000年1月至2023年5月之间发表的社区眼部筛查研究。对这些文章的数据进行了分析,以确定美国社区眼部筛查后随访依从性的障碍和促进因素,并研究用于提高随访率的策略。只包括已出版的手稿。我们排除了学校筛查和临床筛查的研究。结果共纳入28篇文献。随访率从12.5%到89%不等。十九篇文章审查了促进者和后续行动的障碍。18篇非干预性文章和7篇(见表1和表2,分别)文章描述了经过测试以提高筛查后随访率的干预措施。干预措施包括预先安排的任命,交通援助,患者教育,耐心的导航员结论几种干预措施有望提高社区眼科筛查的随访依从性。但需要更多的证据.未来的研究应集中在孤立干预措施的随机试验,以提高弱势群体的随访依从性。尽管考虑到伦理方面的考虑和有记录的筛查后缺乏随访,但这可能是有限的。
    Objective  Although the purpose of community eye screening programs is to reduce health care disparities, the effectiveness of these programs is limited by the follow-up adherence of their participants. The aim of this review is to investigate factors that may promote or hinder participants from attending follow-up ophthalmological exams after community eye screenings and identify interventions to increase follow-up rates. Methods  For literature review, PubMed, Web of Science, Embase, Proquest/Global Health Library, and Google Scholar databases were searched to identify studies of community eye screenings published between January 2000 and May 2023. Data from these articles were analyzed to identify barriers and facilitators of follow-up adherence after community eye screenings in the United States and to examine strategies used to increase follow-up rates. Only published manuscripts were included. We excluded studies of school screenings and clinic-based screenings. Results  A total of 28 articles were included. Follow-up rates ranged from 12.5 to 89%. Nineteen articles reviewed facilitators and barriers to follow-up. Eighteen articles were non interventional and seven (see Table 1 and 2 , respectively) articles described interventions that were tested to improve follow-up rates after screening. Interventions included prescheduled appointments, transportation assistance, patient education, and patient navigators. Conclusion  Several interventions are promising to increase follow-up adherence in community eye screenings, but more evidence is needed. Future research should focus on randomized trials of isolated interventions to improve follow-up adherence of disadvantaged populations, although this may be limited given ethical considerations and documented lack of follow-up after screening.
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  • 文章类型: Journal Article
    背景:脆弱筛查有助于对不良事件风险最大的老年人进行分层,以便进行紧急评估和后续干预。我们评估了老年人风险识别(ISAR)的有效性,临床虚弱量表(CFS),在向急诊科(ED)提交的老年人中,在30天和6个月时预测不良结果的综合服务研究计划(PRISMA-7)和InterRAI-ED。
    方法:对就诊于ED的≥65岁成年人进行前瞻性队列研究。ISAR,CFS,对PRISMA-7和InterRAI-ED进行了评估。在30天和6个月时完成盲随访电话访谈,以评估死亡率。ED重新出席,医院再入院,功能下降和养老院入住。敏感性,特异性,使用2×2表计算筛选工具的阴性预测值和阳性预测值.
    结果:共招募了419名患者,其中47%为女性,平均年龄为76.9岁(标准差=7.2)。不同工具的虚弱患病率各不相同(CFS57%对InterRAI-ED70%)。在30天,死亡率为5.1%,ED再出勤率18.1%,医院再入院14%,功能下降47.6%,养老院入院7.1%。所有工具对预测不良后果具有较高的敏感性和阳性预测值。
    结论:衰弱筛查阳性的老年人在30天出现不良结局的风险显著增加,而ISAR是最敏感的工具。我们建议在ED设置中实施ISAR,以支持临床医生识别最有可能从专业老年评估和干预中受益的老年人。
    frailty screening facilitates the stratification of older adults at most risk of adverse events for urgent assessment and subsequent intervention. We assessed the validity of the Identification of Seniors at Risk (ISAR), Clinical Frailty Scale (CFS), Programme on Research for Integrating Services for the Maintenance of Autonomy seven item questionnaire (PRISMA-7) and InterRAI-ED at predicting adverse outcomes at 30 days and 6 months amongst older adults presenting to the Emergency Department (ED).
    a prospective cohort study of adults ≥65 years who presented to the ED was conducted. The ISAR, CFS, PRISMA-7 and InterRAI-ED were assessed. Blinded follow-up telephone interviews were completed at 30 days and 6 months to assess the incidence of mortality, ED re-attendance, hospital readmission, functional decline and nursing home admission. The sensitivity, specificity, negative predictive value and positive predictive value of the screening tools were calculated using 2 × 2 tables.
    a total of 419 patients were recruited; 47% female with a mean age of 76.9 (Standard deviation = 7.2). The prevalence of frailty varied across the tools (CFS 57% versus InterRAI-ED 70%). At 30 days, the mortality rate was 5.1%, ED re-attendance 18.1%, hospital readmission 14%, functional decline 47.6% and nursing home admission 7.1%. All tools had a high sensitivity and positive predictive value for predicting adverse outcomes.
    older adults who screened positive for frailty were at significantly increased risk of experiencing an adverse outcome at 30 days with the ISAR being the most sensitive tool. We would recommend the implementation of the ISAR in the ED setting to support clinicians in identifying older adults most likely to benefit from specialised geriatric assessment and intervention.
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  • 文章类型: Journal Article
    恰加斯病是美洲最重要的原生动物感染,并构成了全世界重大的公共卫生问题。开发针对其病原体的新药物,克氏锥虫,传统上是缓慢而困难的,与其他动体寄生虫引起的疾病相比滞后。解释这一点的因素包括Cruzi感染的发病机理的不完全理解的机制及其在疾病的慢性阶段与宿主的复杂相互作用。这些要求作为任何药物开发工作的一部分的各种体外和体内测定的性能。在这次审查中,我们讨论了最近在理解寄生虫的生命周期方面的突破及其在寻找新的化疗药物方面的意义。为此,我们提出了一个框架来指导针对查加斯病的药物发现工作,考虑最先进的临床前模型和最近开发的分子靶标鉴定和验证工具。
    Chagas disease is the most important protozoan infection in the Americas, and constitutes a significant public health concern throughout the world. Development of new medications against its etiologic agent, Trypanosoma cruzi, has been traditionally slow and difficult, lagging in comparison with diseases caused by other kinetoplastid parasites. Among the factors that explain this are the incompletely understood mechanisms of pathogenesis of T. cruzi infection and its complex set of interactions with the host in the chronic stage of the disease. These demand the performance of a variety of in vitro and in vivo assays as part of any drug development effort. In this review, we discuss recent breakthroughs in the understanding of the parasite\'s life cycle and their implications in the search for new chemotherapeutics. For this, we present a framework to guide drug discovery efforts against Chagas disease, considering state-of-the-art preclinical models and recently developed tools for the identification and validation of molecular targets.
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  • 文章类型: Journal Article
    2015年,中国只有18.9%的成年女性接受了乳腺癌筛查。
    2018-2019年,中国20岁及以上女性的乳腺癌筛查覆盖率达到22.3%。社会经济地位较低的女性筛查覆盖率较低。省级行政区划之间存在显着差异。
    促进乳腺癌筛查需要维护国家和地方政策,以及对筛查服务的财政支持。此外,有必要加强卫生教育和改善获得卫生服务的机会。
    UNASSIGNED: In 2015, only 18.9% of adult women underwent breast cancer screening in China.
    UNASSIGNED: Breast cancer screening coverage for women aged 20 years and above in China reached 22.3% during 2018-2019. Women with lower socioeconomic status had lower screening coverage. There were significant variations across the provincial-level administrative divisions.
    UNASSIGNED: The promotion of breast cancer screening requires the maintenance of national and local policies, as well as financial support for screening services. In addition, there is a need for the strengthening of health education and the improvement of accessibility to health services.
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  • 文章类型: Journal Article
    UNASSIGNED:世界卫生组织设定了2030年目标,即35-45岁女性的宫颈癌筛查覆盖率达到70%。2015年,中国的覆盖率为37%。
    UNASSIGNED:2018-2019年,中国35-44岁女性宫颈癌筛查覆盖率达到43.4%,35-64岁女性为36.8%。农村地区以及中西部地区的筛查覆盖率仍然较低;省级行政区划之间存在很大差异。
    UNASSIGNED:应保持国家和地方对宫颈癌筛查的政策和财政支持,以及更有针对性的卫生教育和宣传工作,并加强农村地区和中西部地区卫生服务的可及性。
    UNASSIGNED: The World Health Organization set a 2030 target of 70% cervical cancer screening coverage for women aged 35-45 years. Coverage stood at 37% in China in 2015.
    UNASSIGNED: In 2018-2019, China\'s cervical cancer screening coverage reached 43.4% in women aged 35-44 years and 36.8% in women aged 35-64 years. Screening coverage was still lower in rural areas as well as central and western regions; large variations existed across provincial-level administrative divisions.
    UNASSIGNED: National and local policy and financial support should be maintained for cervical cancer screening, along with more targeted health education and outreach efforts and strengthened accessibility of health services in the rural areas and central and western regions.
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