HRSA

HRSA
  • 文章类型: Journal Article
    近年来,Helichrysumitalicum引起了许多研究人员的兴趣,主要是它的精油,但它的多酚含量也越来越高。在目前的研究中,我们研究了在保加利亚生长的意大利红藻的多酚组成。多酚络合物用各种极性的溶剂分馏,包括己烷,氯仿,乙酸乙酯,和丁醇,以评估成分的生物学影响。HPLC-PDA和UHPLC-MS/MS用于检查所有级分。在多酚成分检测方法中,绿咖啡指纹图谱被用作“替代标准”。从UHPLC-MS/MS分析,我们确定了60种成分的多酚复合物,如槲皮素3-O-葡糖苷酸,槲皮素乙酰糖苷,异鼠李素乙酰糖苷,异鼠李素咖啡酰糖苷,槲皮素咖啡酰-丙二酰-糖苷,异鼠李素香豆酰基糖苷,香豆酰基-咖啡酰基奎宁酸,和diCQA-乙酰基-衍生物首次报道在意大利赤霉菌的组合物中。在体外和计算机上评估了馏分的生物活性,其中包括对抗氧化应激(过氧化氢清除活性(HPSA),羟自由基清除活性(HRSA),金属螯合活性(MChA))和亚硝基(一氧化氮清除活性)(NOSA),体外抗炎,和抗关节炎活性。结果表示为IC50±SDμg/mL。分析显示,EtOAc级分的特征在于最高的HPSA(57.12±1.14μg/mL),HRSA(92.23±1.10μg/mL),MChA(5.60±0.17μg/mL),和NOSA(89.81±2.09μg/mL),而己烷和氯仿级分显示出明显更高的体外抗炎活性(30.48±2.33μg/mL,62.50±1.69μg/mL)与标准布洛芬相比。所有三个部分均显示出潜在的抗关节炎活性(102.93±8.62μg/mL,108.92±4.42μg/mL,84.19±3.89μg/mL)。
    Helichrysum italicum has piqued the interest of many researchers in recent years, mostly for its essential oil, but increasingly for its polyphenolic content as well. In the current study, we examine the polyphenolic composition of H. italicum grown in Bulgaria. The polyphenolic complex was fractionated with solvents of various polarities, including hexane, chloroform, ethyl acetate, and butanol, in order to assess the biological impact of the components. HPLC-PDA and UHPLC-MS/MS were used to examine all fractions. The green coffee fingerprint profile was employed as a \"surrogate standard\" in the polyphenolic components detection approach. From the UHPLC-MS/MS analysis, we identified 60 components of the polyphenolic complex such as quercetin 3-O-glucuronide, quercetin acetyl-glycoside, isorhamnetin acetyl-glycoside, isorhamnetin caffeoyl-glycoside, quercetin caffeoyl-malonyl-glycoside, isorhamnetin coumaroyl-glycoside, coumaroyl-caffeoylquinic acid, and diCQA-acetyl-derivative were first reported in the composition of H. italicum. The biological activity of the fractions was evaluated in vitro and in silico, which included the fight against oxidative stress (hydrogen peroxide scavenging activity (HPSA), hydroxyl radical scavenging activity (HRSA), metal-chelating activity (MChA)) and nitrosative (nitric oxide scavenging activity) (NOSA)), in vitro anti-inflammatory, and anti-arthritic activity. Results are presented as IC50 ± SD μg/mL. The analysis showed that the EtOAc fraction was characterized by highest HPSA (57.12 ± 1.14 μg/mL), HRSA (92.23 ± 1.10 μg/mL), MChA (5.60 ± 0.17 μg/mL), and NOSA (89.81 ± 2.09 μg/mL), while the hexane and chloroform fractions showed significantly higher in vitro anti-inflammatory activity (30.48 ± 2.33 μg/mL, 62.50 ± 1.69 μg/mL) compared to the standard ibuprofen. All three fractions showed potential anti-arthritic activity (102.93 ± 8.62 μg/mL, 108.92 ± 4.42 μg/mL, 84.19 ± 3.89 μg/mL).
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  • 文章类型: Journal Article
    由于利益相关者关注美国器官采购系统,需要能够对器官采购提供者进行比较评估的工具。我们为器官采购组织(OPO)开发了一个面向公众的仪表板,使用来自多个来源的数据,创建一个在线,2010-2020年期间OPO实践条件和性能的可视化。有了这个工具,OPO可以在每100例捐赠一致死亡的捐赠者的CMS指标上进行比较,以及循环系统死亡后捐赠(DCD)采购,采购老年人和少数民族患者群体,在较小的医院采购,并采购无明显用药史的患者。确定了更高性能的模式,总体捐助者采购率差异的74%可以用模型变量来解释。黑人和非白人患者人群中的OPO表现对采购差异的影响更大,更可重复。以及在较小的医院,而不是按捐赠服务区(DSA)的特点。像我们这样的仪表板在质量改进行动中支持OPO和利益相关者,通过利用器官采购临床提供商之间的基准性能数据。
    With stakeholder focus on the United States organ procurement system, there is a need for tools that permit comparative assessment of organ procurement providers. We developed a public-facing dashboard for organ procurement organizations (OPOs), using data from multiple sources, to create an online, readily accessible visualization of OPO practice conditions and performance for the period 2010-2020. With this tool, OPOs can be compared on the CMS metric of donors procured per 100 donation-consistent deaths, as well as donation after circulatory death procurement, procurement of older and minority patient populations, procurement in smaller hospitals, and procurement of patients without a significant drug history. Patterns of higher performance were identified, and 74% of differences in overall donor procurement rates could be explained using model variables. Procurement differences were affected to a greater and more reproducible degree by OPO performance among Black and non-White patient populations, as well as in smaller hospitals, than by donation service area characteristics. Dashboards such as ours support OPOs and stakeholders in quality improvement actions, through leveraging benchmarked performance data among organ procurement clinical providers.
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  • 文章类型: Journal Article
    在目前的工作中,我们已经研究了来自保加利亚的小麦的多酚成分。多酚用不同极性的溶剂分馏(正己烷,氯仿,乙酸乙酯,和正丁醇)。通过HPLC-PDA和UHPLC-MS分析级分。乙酸乙酯部分含有槲皮素的单-和二-糖苷,山奈酚的二糖苷,以及异鼠李素和组织蛋白单糖苷和黄羊甙。我们在丁醇部分中发现槲皮素三糖苷。乙酸乙酯和丁醇级分含有168.82mg/gExtr和67.21mg/gExtr槲皮素糖苷,分别。C.botrys中多酚复合物的主要成分是6-甲氧基黄酮(355.47mg/gExtr),在氯仿部分中发现。黄酮类果胶素,去甲基金黄素,和异辛酮,和槲皮素的糖苷(三糖苷,酰基糖苷),山奈酚,异鼠李素,hispidiulin,和黄菊,这是第一次在荆棘中发现和报道。我们使用体外方法评估抗氧化应激的生物活性(过氧化氢清除活性(HPSA)和羟自由基清除活性(HRSA)),硝化应激(一氧化氮清除活性(NOSA)),抗炎活性(IAD抑制),和抗胰蛋白酶活性(ATA)。槲皮素单糖苷和二糖苷表现出更高的HPSA和HRSA(IC50=39.18,105.03µg/mL),而6-甲氧基黄酮具有更大的NOSA(IC50=146.59µg/mL)。相同的成分显示最高的ATA(IC50范围为116.23至202.44µg/mL)。
    In the present work, we have investigated the polyphenolic composition of Chenopodium botrys from Bulgaria. The polyphenols were fractionated with solvents of varying polarity (n-hexane, chloroform, ethyl acetate, and n-butanol). The fractions were analyzed by HPLC-PDA and UHPLC-MS. The ethyl acetate fraction contained mono- and di-glycosides of quercetin, di-glycosides of kaempferol, and isorhamnetin and monoglycosides of hispidulin and jaceosidine. We found quercetin triglycosides in the butanol fraction. The ethyl acetate and butanol fractions contained 168.82 mg/g Extr and 67.21 mg/g Extr of quercetin glycosides, respectively. The main components of the polyphenolic complex in C. botrys were 6-methoxyflavones (355.47 mg/g Extr), which were found in the chloroform fraction. The flavonoids pectolinarigenin, demethylnobiletin, and isosinensetin, and the glycosides of quercetin (triglycosides, acylglycosides), kaempferol, isorhamnetin, hispidiulin, and jaceosidine, were discovered and reported in Chenopodium botrys for the first time. We used in vitro methods to assess the biological activity against oxidative stress (hydrogen peroxide scavenging activity (HPSA) and hydroxyl radical scavenging activity (HRSA)), nitrosative stress (nitric oxide scavenging activity (NOSA)), anti-inflammatory activity (IAD inhibition), and anti-tryptic activity (ATA). Quercetin mono- and di-glycosides exhibited greater HPSA and HRSA (IC50 = 39.18, 105.03 µg/mL), while 6-methoxyflavones had a greater NOSA (IC50 = 146.59 µg/mL). The same components showed the highest ATA (IC50 ranging from 116.23 to 202.44 µg/mL).
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  • 文章类型: Journal Article
    进行该实验以研究急性和亚急性暴露的氧化镁纳米颗粒对MrigalCirhinusmrigala的影响。对于亚急性测试,根据96小时的LC50选择1/100、1/50、1/10。蛋白质,碳水化合物,和脂质,天冬氨酸转氨酶,丙氨酸转氨酶,乳酸脱氢酶和DPPH,HRSA分析在ill中进行分析,肌肉,还有Mrigal的肝脏.蛋白质和脂质水平在7日增加,与对照组相比,第14天。7日碳水化合物水平下降,暴露的第14天,酶的变化在7日增加,第14天.与HRSA测定相比,DPPH测定中的抗氧化剂水平高度增加。这项研究提供了生物化学,抗氧化剂,与MgONPs暴露有关的行为变化。
    This experiment was conducted to investigate the impact of acute and sub-acute exposure of magnesium oxide nanoparticles on Mrigal Cirrhinus mrigala. For sub-acute tests 1/100,1/50,1/10 were selected based on the LC50 at 96 h s. Protein, carbohydrate, and lipid, Aspartate aminotransferase, alanine transaminase, lactate dehydrogenase and DPPH, HRSA assays were analyzed in the gill, muscle, and liver of Mrigal. Protein and lipid levels increased on the 7th,14th day compared to control. Carbohydrate levels decreased on the 7th,14th day of exposure, and the enzymatical changes increased on the 7th,14th day. Antioxidant levels highly increased in DPPH assay compared to the HRSA assay. This study provides the biochemical, antioxidant, and behavioral changes in relation to the exposure of MgO NPs.
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  • 文章类型: Journal Article
    OBJECTIVE: While the Commission on Dental Accreditation (CODA) requires programs to conduct faculty development, implementation of faculty development activities vary widely. Faculty development programs can enhance teaching, research, and leadership skills needed to transition from clinical practice to teaching. In 2012, the Health Resources and Services Administration (HRSA) funded 6 institutions to plan, develop, and operate programs for training oral healthcare providers who plan to teach in general, pediatric, public health dentistry, or dental hygiene. This performance study examines the results of the dental faculty development programs.
    METHODS: After the 5-year grant program (2012-2017), we used descriptive analysis to examine annual performance data including trainee demographics, faculty development activities, post-completion intentions, and course development activities.
    RESULTS: Nearly 300 trainees participated across 6 funded grantees; the majority were female, aged 30-49 years, and non-Hispanic White. For those who completed, 80% intended to teach. Common faculty development activities included community-based training, curriculum enhancements, Web-based training, and interprofessional education methods. Faculty development modalities included faculty seminars, Master\'s degrees, and mentoring. Pipeline activities, online resources, and continuing education supported dental students and providers moving into academics.
    CONCLUSIONS: Faculty development better prepares individuals to compete in academic environments and develop faculty. Community-based programs may utilize faculty development to recruit community preceptors and achieve calibration. HRSA investment in faculty development programs builds resources and infrastructure to promote continuing engagement in clinical education, research, and administrative skills. Future research is needed to establish the impact of faculty development initiatives on practice change and patient outcomes.
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  • 文章类型: Journal Article
    The US South accounted for 51% of annual new HIV infections, 50% of undiagnosed infections and 45% of persons with HIV infection in 2016 while comprising 38% of the population. Myriad structural and contextual factors are associated with HIV-related disparities. This paper describes initiatives and strategies conducted by the Centers for Disease Control and Prevention and Health Resources and Services Administration to identify opportunities and activities addressing the disparity of HIV diagnoses in the South. Targeted HIV prevention and care efforts can change the trajectory of outcomes along the HIV care continuum and reduce HIV-related disparities in the South.
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  • 文章类型: Journal Article
    The Health Resources and Services Administration created the Geriatric Workforce Enhancement Program (GWEP) in 2015 to address future geriatric workforce challenges and redefine the delivery of care to older adults. The John A. Hartford Foundation subsequently funded the GWEP Coordinating Center (GWEP-CC) to offer centralized, strategic support to these 44 diverse GWEP sites. This article outlines the last 3 years of GWEP work done at the national and local levels to transform geriatric care. Dissemination of the innovative Geriatric Interprofessional Team Transformation in Primary Care program, created by the Dartmouth GWEP, demonstrates how the GWEP-CC can benefit local initiatives and inform national perspectives. The GWEP-CC is a change agent in this way, scaling and distributing information and implementation support across the country. The GWEP-CC also serves as an essential repository of data, continuously determining what is working and what could be improved. This informs activity of the GWEP-CC, funders and other stakeholders, and provides the most up-to-date resources to GWEP sites and their partners. The GWEP-CC achieves its objectives through several key pillars: networking opportunities, education and training, advocacy, and evaluation. Although many advances have been made, opportunities to continue paving the way are plenty, especially with regards to mental health. This article discusses the work accomplished to date and presents some future considerations for mental health and overall healthcare transformation.
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  • 文章类型: Journal Article
    鉴于美国人口结构的迅速变化以及整个卫生行业中某些种族和族裔群体的代表性持续不足,建立更多样化的医疗保健劳动力的理由从未如此强烈。迄今为止,医疗保健劳动力多样化的进展已经并将继续受到社会因素的影响,机构,和个人水平。自1970年代以来,联邦政府已投入资源支持现有劳动力的培训和发展,并增加新的卫生专业人员的供应,特别是来自代表性不足的少数群体和/或处境不利的背景。然而,已经发表了有限的研究,详细介绍了这些过程,输出和,如果可用,这种投资跨越多年的结果。本文介绍了卫生资源和服务管理局的卫生劳动力局如何使用回顾性案例研究方法来评估与弱势学生奖学金计划相关的过程和产出,这是一项每年超过4000万美元的联邦投资,旨在抵消来自弱势背景的卫生专业学生在5年内的学费。提供了经验教训和加强计划设计和要求的建议。
    The case for a more diverse health-care workforce has never been stronger given the rapidly changing demographics of the United States and the continued underrepresentation of certain racial and ethnic groups across the health professions. To date, progress toward diversifying the health-care workforce has been and continues to be deterred by a mix of factors at the societal, institutional, and individual levels. Since the 1970s, the Federal government has invested resources in initiatives that support the training and development of the existing workforce as well increase the supply of new health professionals-particularly those from underrepresented minority groups and/or from disadvantaged backgrounds. However, limited studies have been published detailing the processes, outputs and, where available, outcomes of such investments across multiple years. This article describes how the Health Resources and Services Administration\'s Bureau of Health Workforce used retrospective case study methodology to evaluate processes and outputs associated with the Scholarships for Disadvantaged Students program-an over US$40 million annual Federal investment aimed at offsetting tuition costs for health professions students from disadvantaged backgrounds-over a 5-year period. Lessons learned and recommendations for strengthening the program\'s design and requirements are provided.
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  • 文章类型: Editorial
    暂无摘要。
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  • 文章类型: Journal Article
    人们对确定联邦政府资助的公共卫生培训中心(PHTC)计划的影响越来越感兴趣。尽管已对一般公共卫生培训进行了评估研究,对PHTC计划的评估很少。现场放置组件是PHTCs的国会授权要求。实地考察通常是密集的,监督学生与当地卫生部门或非营利组织的公共卫生经验。我们没有发现PHTC现场放置组件的公开评估。这可能是因为它们的小尺寸和独特的性质。我们在已建立的PHTC设计并评估了200小时的现场放置程序。评估包括衡量公共卫生核心能力的前/后调查,和经验后的采访。我们发现受训人员在三个能力领域显著增加:政策制定和计划规划,沟通技巧,和社区层面的实践。这些结果有助于根据PHTC现场安置计划的有效性提供证据,并强调他们在公共卫生培训中的作用。
    There is heightened interest in identifying the impact of the federally funded Public Health Training Center (PHTC) program. Although evaluation studies have been conducted of public health training in general, evaluations of PHTC programs are rare. Field placement components are congressionally mandated requirements of PHTCs. Field placements are typically intensive, supervised externships for students to gain public health experience with local health departments or non-profit organizations. We have found no published evaluations of PHTC field placement components. This may be because of their small size and unique nature. We designed and evaluated a 200-h field placement program at an established PHTC. The evaluation included pre/post surveys measuring public health core competencies, and post-experience interviews. We found significant increases in three competency domains among trainees: policy development and program planning, communication skills, and community dimensions of practice. These outcomes contribute to evidence based on the efficacy of PHTC field placement programs, and underscore their role in public health training.
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