26 research outputs found

    恐惧与不动产价值:民意调查结果与市场销售证据的比较

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    研究问题的背景介绍从20世纪80年代早期开始,邻近被称作土地使用不合意区(Locally Undesirable Land Uses,LULUs)的房屋所有者和土地所有者就认为,LULUs危害到人类的健康和安全

    Mapping interactions with the chaperone network reveals factors that protect against tau aggregation.

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    A network of molecular chaperones is known to bind proteins ('clients') and balance their folding, function and turnover. However, it is often unclear which chaperones are critical for selective recognition of individual clients. It is also not clear why these key chaperones might fail in protein-aggregation diseases. Here, we utilized human microtubule-associated protein tau (MAPT or tau) as a model client to survey interactions between ~30 purified chaperones and ~20 disease-associated tau variants (~600 combinations). From this large-scale analysis, we identified human DnaJA2 as an unexpected, but potent, inhibitor of tau aggregation. DnaJA2 levels were correlated with tau pathology in human brains, supporting the idea that it is an important regulator of tau homeostasis. Of note, we found that some disease-associated tau variants were relatively immune to interactions with chaperones, suggesting a model in which avoiding physical recognition by chaperone networks may contribute to disease

    Guidelines for the use and interpretation of assays for monitoring autophagy (3rd edition)

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    In 2008 we published the first set of guidelines for standardizing research in autophagy. Since then, research on this topic has continued to accelerate, and many new scientists have entered the field. Our knowledge base and relevant new technologies have also been expanding. Accordingly, it is important to update these guidelines for monitoring autophagy in different organisms. Various reviews have described the range of assays that have been used for this purpose. Nevertheless, there continues to be confusion regarding acceptable methods to measure autophagy, especially in multicellular eukaryotes. For example, a key point that needs to be emphasized is that there is a difference between measurements that monitor the numbers or volume of autophagic elements (e.g., autophagosomes or autolysosomes) at any stage of the autophagic process versus those that measure fl ux through the autophagy pathway (i.e., the complete process including the amount and rate of cargo sequestered and degraded). In particular, a block in macroautophagy that results in autophagosome accumulation must be differentiated from stimuli that increase autophagic activity, defi ned as increased autophagy induction coupled with increased delivery to, and degradation within, lysosomes (inmost higher eukaryotes and some protists such as Dictyostelium ) or the vacuole (in plants and fungi). In other words, it is especially important that investigators new to the fi eld understand that the appearance of more autophagosomes does not necessarily equate with more autophagy. In fact, in many cases, autophagosomes accumulate because of a block in trafficking to lysosomes without a concomitant change in autophagosome biogenesis, whereas an increase in autolysosomes may reflect a reduction in degradative activity. It is worth emphasizing here that lysosomal digestion is a stage of autophagy and evaluating its competence is a crucial part of the evaluation of autophagic flux, or complete autophagy. Here, we present a set of guidelines for the selection and interpretation of methods for use by investigators who aim to examine macroautophagy and related processes, as well as for reviewers who need to provide realistic and reasonable critiques of papers that are focused on these processes. These guidelines are not meant to be a formulaic set of rules, because the appropriate assays depend in part on the question being asked and the system being used. In addition, we emphasize that no individual assay is guaranteed to be the most appropriate one in every situation, and we strongly recommend the use of multiple assays to monitor autophagy. Along these lines, because of the potential for pleiotropic effects due to blocking autophagy through genetic manipulation it is imperative to delete or knock down more than one autophagy-related gene. In addition, some individual Atg proteins, or groups of proteins, are involved in other cellular pathways so not all Atg proteins can be used as a specific marker for an autophagic process. In these guidelines, we consider these various methods of assessing autophagy and what information can, or cannot, be obtained from them. Finally, by discussing the merits and limits of particular autophagy assays, we hope to encourage technical innovation in the field

    “You get three different hats on and try to figure it out:” home based care provision during a disaster

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    Abstract Background Home based care is a vital, and growing, part of the health care system that allows individuals to remain in their homes while still receiving health care. During a disaster, when normal health care systems are disrupted, home based care remains a vital source of support for older adults. The purpose of this paper is to qualitatively understand the barriers and facilitators of both patients and providers that influence the provision of home based care activities in two hurricane affected communities. Methods Using qualitative inquiry informed by the social ecological model, five focus groups were conducted with home based care providers (n = 25) in two settings affected by Hurricane Irma and Hurricane Harvey. An open-source database of home health agencies participating in Centers for Medicare and Medicaid Services programs was used to identify participants. Data were manually coded and larger themes were generated from recurring ideas and concepts using an abductive analysis approach. Results Twenty five participants were included in one of five focus groups. Of the 22 who responded to the demographic survey, 65 % were registered nurses, 20 % were Licensed Vocational Nurses (LVN), and 15 % were other types of health care providers. 12 % of the sample was male and 88 % was female. Five themes were identified in the analysis: barriers to implementing preparedness plans, adaptability of home based care providers, disasters exacerbate inequalities, perceived unreliability of government and corporations, and the balance between caring for self and family and caring for patients. Conclusions This study provides qualitative evidence on the factors that influence home based care provision in disaster-affected communities, including the barriers and facilitators faced by both patients and providers in preparing for, responding to and recovering from a disaster. While home based care providers faced multiple challenges to providing care during and after a disaster, the importance of community supports and holistic models of care in the immediate period after the disaster were emphasized. We recommend greater inclusion of home health agencies in the community planning process. This study informs the growing body of evidence on the value of home based care in promoting safety and well-being for older adults during a disaster.http://deepblue.lib.umich.edu/bitstream/2027.42/173523/1/12912_2021_Article_676.pd

    “Helping fill that gap:” a qualitative study of aging in place after disaster through the lens of home-based care providers

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    Abstract Background During a disaster, home-based care fills the critical need for continuation of health care. Home-based care is intended to function using existing care delivery models, continuing to provide care for patients wherever they are located, including in shelters and hotels. Home-based care providers are often the closest in contact with their patients —seeing them in place, even throughout a disaster— through which they develop a unique insight into aging in place during a disaster. The purpose of this study was to identify individual and community-level support needs of older adults after a disaster through the lens of home-based care providers. Methods Using qualitative inquiry, five focus groups were conducted with home-based care providers (n = 25) who provided in-home care during Hurricane Irma and Hurricane Harvey. Participants were identified by contacting home health agencies listed in an open-source database of agencies participating in Centers for Medicare and Medicaid Services programs. Data were coded using an abductive analytic approach, and larger themes were generated in light of existing theory. Results The results were distilled into eight themes that related to the importance of community and family, informal and formal supports throughout the disaster management cycle, maintaining autonomy during a disaster, and institutional and systemic barriers to obtaining assistance. Conclusions In this study, home-based care providers described the challenges aging adults face in the response and recovery period after a large-scale disaster including maintaining continuity of care, encouraging individual preparedness, and accessing complex governmental support. Listening to home-based care providers offers new and important insights for developing interventions to address social and health needs for older adults aging in place after a large-scale disaster.http://deepblue.lib.umich.edu/bitstream/2027.42/173551/1/12877_2021_Article_2159.pd

    Do State Medical Board Applications Violate the Americans With Disabilities Act?

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    PURPOSE: To determine whether medical licensing board application questions about the mental or physical health or substance use history of the applicant violate the Americans with Disabilities Act (ADA) of 1990. METHOD: Content analysis of 51 allopathic licensing applications (50 states and District of Columbia) was performed at the University of Medicine and Dentistry of New Jersey-New Jersey Medical School in 2005. Questions referencing physical or mental health or substance use were identified by a team of physicians and reviewed and categorized based on the ADA and appropriate case law by legal counsel. RESULTS: Of the 51 applications reviewed, 49 (96%) contained questions pertaining to the physical or mental health or substance use history of the applicant. Thirty-four of the 49 (69%) state medical licensing applications contained at least one likely impermissible or impermissible item based on the ADA and appropriate case law. CONCLUSIONS: Most state medical licensing applications contain questions that ask about the physical or mental health and substance use of physician applicants. Many licensing applications appear to be in violation of the ADA, even 19 years after enactment of the regulation. These questions do not elicit responses by which professional competence can be judged. The presence of these questions on licensing applications may cause physicians to avoid or delay treatment of personal illness

    Special Populations and Dual Diagnosis

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