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1.
Telemed J E Health ; 24(7): 510-516, 2018 07.
Article in English | MEDLINE | ID: mdl-29293071

ABSTRACT

BACKGROUND: Nursing homes (NHs) provide care to a complex patient population and face the ongoing challenge of meeting resident needs for specialty care. A NH telemedicine care model could improve access to remote specialty providers. INTRODUCTION: Little is known about provider interest in telemedicine for specialty consults in the NH setting. The goal of this study was to survey a national sample of NH physicians and advanced practice providers to document their views on telemedicine for providing specialty consults in the NH. MATERIALS AND METHODS: We surveyed physician and advanced practice providers who attended the 2016 AMDA-The Society for Post-Acute and Long-Term Care Medicine Annual Conference about their likelihood of referral to and perceptions of a telemedicine program for providing specialty consults in the NH. RESULTS: We received surveys from 524 of the 1,274 conference attendees for a 41.1% response rate. Respondents expressed confidence in the ability of telemedicine to fill existing service gaps and provide appropriate, timelier care. Providers showed the highest level of interest in telemedicine for dermatology, geriatric psychiatry, and infectious disease. Only 13% of respondents indicated that telemedicine was available for use in one of their facilities. DISCUSSION: There appears to be unmet demand for telemedicine in NHs for providing specialty consults to residents. CONCLUSIONS: The responses of NH providers suggest support for the concept of telemedicine as a modality of care that can be used to offer specialty consults to NH residents.


Subject(s)
Attitude of Health Personnel , Attitude to Computers , Nursing Homes , Remote Consultation , Specialization , Health Services Accessibility , Humans , Surveys and Questionnaires
2.
Geriatrics (Basel) ; 3(3)2018 Jul 30.
Article in English | MEDLINE | ID: mdl-31011082

ABSTRACT

Community-Based Outpatient Clinics (CBOCs) allow delivery of primary care to rural veterans who are far from a main Veterans Affairs (VA) campus. However, CBOCs often do not have physicians with geriatric training. We used a clinical video telehealth (CVT) dementia service (Teledementia clinic) based in the Pittsburgh VA Healthcare System to optimize dementia patients' medications and potentially inappropriate medications (PIMs). We analyzed 199 CVT patient encounters from 1 January 2016 to 31 December 2016 and compared different medication changes per encounter between the initial CVT consults and the follow-up visits for all medications and PIMs as listed in the 2015 Beers Criteria, to see if there was a decrease of each kind of change, which is being used as a surrogate for optimization. We found that initial CVT consults, compared to follow-up visits, had greater medications added (0.731 vs. 0.434, p = 0.0092), total overall medications changes (1.769 vs. 1.130, p = 0.0078), and the stopping of 2015 Beers Criteria PIMs (0.208 vs. 0.072, p = 0.0255) per encounter. The fewer PIMs discontinued and fewer medication additions in follow-ups implies that our patients' medications tend to stay optimized between visits. The teledementia service represents a novel way to provide geriatric assistance to CBOC VA primary care physicians for rural veterans with dementia.

3.
J Am Med Dir Assoc ; 17(6): 519-24, 2016 06 01.
Article in English | MEDLINE | ID: mdl-26969534

ABSTRACT

OBJECTIVE: Potentially avoidable hospitalizations (PAHs) of nursing home (NH) residents are common, costly, and can have significant economic consequences. Telemedicine has been shown to reduce emergency department and hospitalization of NH residents, yet adoption has been limited and little is known about provider's perceptions and desired functionality for a telemedicine program. The goal of this study was to survey a nationally representative sample of NH physicians and advanced practice providers to quantify provider perceptions and desired functionality of telemedicine in NHs to reduce PAHs. DESIGN/SETTING/PARTICIPANTS/MEASUREMENT: We surveyed physicians and advanced practice providers who attended the 2015 AMDA-The Society for Post-Acute and Long-Term Care Medicine Annual Conference about their perceptions of telemedicine and desired attributes of a telemedicine program for managing acute changes of condition associated with PAHs. RESULTS: We received surveys from 435 of the 947 conference attendees for a 45.9% response rate. Providers indicated strong agreement with the potential for telemedicine to improve timeliness of care and fill existing service gaps, while disagreeing most with the ideas that telemedicine would reduce care effectiveness and jeopardize resident privacy. Responses indicated clear preferences for the technical requirements of such a program, such as high-quality audio and video and inclusion of an electronic stethoscope, but with varying opinions about who should be performing the consults. CONCLUSION: Among NH providers, there is a high degree of confidence in the potential for a telemedicine solution to PAHs in NHs, as well as concrete views about features of such a solution. Such consensus could be used to drive an approach to telemedicine for PAHs in NHs that retains the theoretical strengths of telemedicine and reflects the needs of facilities, providers, and patients. Further research is needed to objectively study the impact of successful telemedicine implementations on patient, provider, and economic outcomes.


Subject(s)
Attitude of Health Personnel , Hospitalization , Nursing Homes , Patient Readmission , Telemedicine , Advanced Practice Nursing , Aged , Female , Hospitalization/statistics & numerical data , Humans , Male , Physicians/psychology , Surveys and Questionnaires , United States
4.
Nat Med ; 18(1): 111-9, 2011 Dec 04.
Article in English | MEDLINE | ID: mdl-22138751

ABSTRACT

Mechanisms of epithelial cell renewal remain poorly understood in the mammalian kidney, particularly in the glomerulus, a site of cellular damage in chronic kidney disease. Within the glomerulus, podocytes--differentiated epithelial cells crucial for filtration--are thought to lack substantial capacity for regeneration. Here we show that podocytes rapidly lose differentiation markers and enter the cell cycle in adult mice in which the telomerase protein component TERT is conditionally expressed. Transgenic TERT expression in mice induces marked upregulation of Wnt signaling and disrupts glomerular structure, resulting in a collapsing glomerulopathy resembling those in human disease, including HIV-associated nephropathy (HIVAN). Human and mouse HIVAN kidneys show increased expression of TERT and activation of Wnt signaling, indicating that these are general features of collapsing glomerulopathies. Silencing transgenic TERT expression or inhibiting Wnt signaling through systemic expression of the Wnt inhibitor Dkk1 in either TERT transgenic mice or in a mouse model of HIVAN results in marked normalization of podocytes, including rapid cell-cycle exit, re-expression of differentiation markers and improved filtration barrier function. These data reveal an unexpected capacity of podocytes to reversibly enter the cell cycle, suggest that podocyte renewal may contribute to glomerular homeostasis and implicate the telomerase and Wnt-ß-catenin pathways in podocyte proliferation and disease.


Subject(s)
AIDS-Associated Nephropathy/metabolism , Kidney Glomerulus/metabolism , Kidney/metabolism , Podocytes/cytology , Telomerase/metabolism , Wnt Signaling Pathway , AIDS-Associated Nephropathy/genetics , Animals , Cell Differentiation , Cell Proliferation , Disease Models, Animal , Gene Expression Regulation , Humans , Intercellular Signaling Peptides and Proteins/genetics , Intercellular Signaling Peptides and Proteins/metabolism , Kidney/cytology , Kidney Glomerulus/cytology , Kidney Glomerulus/growth & development , Mice , Mice, Transgenic , Podocytes/metabolism , Telomerase/genetics
5.
Nature ; 460(7251): 66-72, 2009 Jul 02.
Article in English | MEDLINE | ID: mdl-19571879

ABSTRACT

Stem cells are controlled, in part, by genetic pathways frequently dysregulated during human tumorigenesis. Either stimulation of Wnt/beta-catenin signalling or overexpression of telomerase is sufficient to activate quiescent epidermal stem cells in vivo, although the mechanisms by which telomerase exerts these effects are not understood. Here we show that telomerase directly modulates Wnt/beta-catenin signalling by serving as a cofactor in a beta-catenin transcriptional complex. The telomerase protein component TERT (telomerase reverse transcriptase) interacts with BRG1 (also called SMARCA4), a SWI/SNF-related chromatin remodelling protein, and activates Wnt-dependent reporters in cultured cells and in vivo. TERT serves an essential role in formation of the anterior-posterior axis in Xenopus laevis embryos, and this defect in Wnt signalling manifests as homeotic transformations in the vertebrae of Tert(-/-) mice. Chromatin immunoprecipitation of the endogenous TERT protein from mouse gastrointestinal tract shows that TERT physically occupies gene promoters of Wnt-dependent genes. These data reveal an unanticipated role for telomerase as a transcriptional modulator of the Wnt/beta-catenin signalling pathway.


Subject(s)
Chromatin/genetics , Signal Transduction , Telomerase/metabolism , Wnt Proteins/metabolism , Animals , Cell Line , Choristoma/genetics , Choristoma/pathology , DNA Helicases/metabolism , Genes, Reporter/genetics , HeLa Cells , Humans , Intestine, Small/metabolism , Mice , Nuclear Proteins/metabolism , Oocytes/cytology , Oocytes/growth & development , Plasmids/genetics , Promoter Regions, Genetic/genetics , Somites/abnormalities , Somites/embryology , Transcription Factors/metabolism , Wnt Proteins/genetics , Wnt3 Protein , Xenopus laevis/embryology , beta Catenin/genetics
6.
PLoS Genet ; 4(1): e10, 2008 Jan.
Article in English | MEDLINE | ID: mdl-18208333

ABSTRACT

Telomerase serves a critical role in stem cell function and tissue homeostasis. This role depends on its ability to synthesize telomere repeats in a manner dependent on the reverse transcriptase (RT) function of its protein component telomerase RT (TERT), as well as on a novel pathway whose mechanism is poorly understood. Here, we use a TERT mutant lacking RT function (TERT(ci)) to study the mechanism of TERT action in mammalian skin, an ideal tissue for studying progenitor cell biology. We show that TERT(ci) retains the full activities of wild-type TERT in enhancing keratinocyte proliferation in skin and in activating resting hair follicle stem cells, which triggers initiation of a new hair follicle growth phase and promotes hair synthesis. To understand the nature of this RT-independent function for TERT, we studied the genome-wide transcriptional response to acute changes in TERT levels in mouse skin. We find that TERT facilitates activation of progenitor cells in the skin and hair follicle by triggering a rapid change in gene expression that significantly overlaps the program controlling natural hair follicle cycling in wild-type mice. Statistical comparisons to other microarray gene sets using pattern-matching algorithms revealed that the TERT transcriptional response strongly resembles those mediated by Myc and Wnt, two proteins intimately associated with stem cell function and cancer. These data show that TERT controls tissue progenitor cells via transcriptional regulation of a developmental program converging on the Myc and Wnt pathways.


Subject(s)
Epithelial Cells/physiology , Gene Expression Regulation, Developmental , Proto-Oncogene Proteins c-myc/genetics , Telomerase/metabolism , Wnt Proteins/genetics , Algorithms , Animals , Biopsy , Cell Proliferation , Dermatologic Surgical Procedures , Gene Expression Profiling , Hair/metabolism , Hair Follicle/cytology , Hair Follicle/metabolism , Immunohistochemistry , Keratinocytes/physiology , Mice , Mice, Transgenic , Models, Biological , Mutation , RNA, Messenger/metabolism , Skin/cytology , Skin/enzymology , Skin/metabolism , Stem Cells/cytology , Stem Cells/metabolism , Telomerase/genetics , Transcription, Genetic
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