495 results on '"K. McMahon"'
Search Results
2. The response to stressors in adulthood depends on the interaction between prenatal exposure to glucocorticoids and environmental context
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Ariana D. Majer, Ryan T. Paitz, Gianna M. Tricola, Jack E. Geduldig, Hannah P. Litwa, Jenna L. Farmer, Brenna R. Prevelige, Elyse K. McMahon, Taylor McNeely, Zach R. Sisson, Brian J. Frenz, Alexis D. Ziur, Emily J. Clay, Brad D. Eames, Shannon E. McCollum, and Mark F. Haussmann
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Medicine ,Science - Abstract
Abstract Maternal stress during reproduction can influence how offspring respond to stress later in life. Greater lifetime exposure to glucocorticoid hormones released during stress is linked to greater risks of behavioral disorders, disease susceptibility, and mortality. The immense variation in individual’s stress responses is explained, in part, by prenatal glucocorticoid exposure. To explore the long-term effects of embryonic glucocorticoid exposure, we injected Japanese quail (Coturnix japonica) eggs with corticosterone. We characterized the endocrine stress response in offspring and measured experienced aggression at three different ages. We found that prenatal glucocorticoid exposure affected (1) the speed at which the stress response was terminated suggesting dysregulated negative feedback, (2) baseline corticosterone levels in a manner dependent on current environmental conditions with higher levels of experienced aggression associated with higher levels of baseline corticosterone, (3) the magnitude of an acute stress response based on baseline concentrations. We finish by proposing a framework that can be used to test these findings in future work. Overall, our findings suggest that the potential adaptive nature of prenatal glucocorticoid exposure is likely dependent on environmental context and may also be tempered by the negative effects of longer exposure to glucocorticoids each time an animal faces a stressor.
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- 2023
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3. The latency-reversing agent HODHBt synergizes with IL-15 to enhance cytotoxic function of HIV-specific T cells
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Dennis C. Copertino Jr., Carissa S. Holmberg, Jared Weiler, Adam R. Ward, J. Natalie Howard, Callie Levinger, Alina P.S. Pang, Michael J. Corley, Friederike Dündar, Paul Zumbo, Doron Betel, Rajesh T. Gandhi, Deborah K. McMahon, Ronald J. Bosch, Noemi Linden, Bernard J. Macatangay, Joshua C. Cyktor, Joseph J. Eron, John W. Mellors, Colin Kovacs, Erika Benko, Alberto Bosque, R. Brad Jones, and for the AIDS Clinical Trials Group (ACTG) A5321 Team
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AIDS/HIV ,Immunology ,Medicine - Abstract
IL-15 is under clinical investigation toward the goal of curing HIV infection because of its abilities to reverse HIV latency and enhance immune effector function. However, increased potency through combination with other agents may be needed. 3-Hydroxy-1,2,3-benzotriazin-4(3H)-one (HODHBt) enhances IL-15–mediated latency reversal and NK cell function by increasing STAT5 activation. We hypothesized that HODHBt would also synergize with IL-15, via STAT5, to directly enhance HIV-specific cytotoxic T cell responses. We showed that ex vivo IL-15 + HODHBt treatment markedly enhanced HIV-specific granzyme B–releasing T cell responses in PBMCs from antiretroviral therapy–suppressed (ART-suppressed) donors. We also observed upregulation of antigen processing and presentation in CD4+ T cells and increased surface MHC-I. In ex vivo PBMCs, IL-15 + HODHBt was sufficient to reduce intact proviruses in 1 of 3 ART-suppressed donors. Our findings reveal the potential for second-generation IL-15 studies incorporating HODHBt-like therapeutics. Iterative studies layering on additional latency reversal or other agents are needed to achieve consistent ex vivo reservoir reductions.
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- 2023
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4. Comparative sensitivity of automated (Abbott M2000) and manual plasma HIV-1 RNA PCR assays for the detection of persistent viremia after long-term antiretroviral therapy
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Melissa A. Tosiano, Hanna Mar, Dianna Hoeth, Joseph J. Eron, Rajesh T. Gandhi, Deborah K. McMahon, Ronald J. Bosch, John W. Mellors, and Joshua C. Cyktor
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HIV-1 ,Low-level viremia ,Quantification ,Automation ,Clinical trials ,Microbiology ,QR1-502 ,Public aspects of medicine ,RA1-1270 - Abstract
Background: The ability of automated, FDA-cleared plasma HIV-1 RNA assays to detect low-level viremia, compared to manual, highly sensitive research-only methods, is not well-defined. We therefore tested paired plasma samples from people with HIV-1 (PWH) on long-term antiretroviral therapy (ART) with both the Abbott M2000 RealTime HIV-1 Viral Load assay (Abbott) and a quantitative reverse transcriptase (RT)-initiated PCR assay that has a reported 95% detection limit of 1 HIV-1 RNA copy/ml (single copy assay, SCA). Methods: Plasma samples from 309 participants in the AIDS Clinical Trials Group study A5321 were tested by both Abbott and SCA. Participants were mostly men (82%). All were on stable ART for a median of 7 years with HIV-1 RNA
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- 2022
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5. Team-Based Learning for Health Professions Education: A Guide to Using Small Groups for Improving Learning
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Larry K. Michaelsen, Dean X. Parmelee, Ruth E. Levine, Kathryn K. McMahon, Larry K. Michaelsen, Dean X. Parmelee, Ruth E. Levine, Kathryn K. McMahon
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- 2020
6. Natural Killer Cell Receptors and Ligands Are Associated With Markers of HIV-1 Persistence in Chronically Infected ART Suppressed Patients
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Geoffrey T. Ivison, Elena Vendrame, Giovanny J. Martínez-Colón, Thanmayi Ranganath, Rosemary Vergara, Nancy Q. Zhao, Maureen P. Martin, Sean C. Bendall, Mary Carrington, Joshua C. Cyktor, Deborah K. McMahon, Joseph Eron, R. Brad Jones, John W. Mellors, Ronald J. Bosch, Rajesh T. Gandhi, Susan Holmes, Catherine A. Blish, and The ACTG 5321 Team
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human immunodeficiency virus (HIV) ,HIV latency ,natural killer cells ,natural killer cell receptor ligands ,HIV cure ,Microbiology ,QR1-502 - Abstract
The latent HIV-1 reservoir represents a major barrier to achieving a long-term antiretroviral therapy (ART)-free remission or cure for HIV-1. Natural Killer (NK) cells are innate immune cells that play a critical role in controlling viral infections and have been shown to be involved in preventing HIV-1 infection and, in those who are infected, delaying time to progression to AIDS. However, their role in limiting HIV-1 persistence on long term ART is still uncharacterized. To identify associations between markers of HIV-1 persistence and the NK cell receptor-ligand repertoire, we used twin mass cytometry panels to characterize the peripheral blood NK receptor-ligand repertoire in individuals with long-term antiretroviral suppression enrolled in the AIDS Clinical Trial Group A5321 study. At the time of testing, participants had been on ART for a median of 7 years, with virological suppression
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- 2022
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7. Comparison of methods to quantify inducible HIV-1 outgrowth
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P. Nathan Enick, Joseph P. Brooker, Camille M. Tumiotto, Brittany T. Staines, Joseph J. Eron, Deborah K. McMahon, Rajesh T. Gandhi, John W. Mellors, and Michele D. Sobolewski
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QVOA ,HIV ,MOLT4 ,SupT1 ,RNA ,IUPM ,Microbiology ,QR1-502 ,Public aspects of medicine ,RA1-1270 - Abstract
The quantitative viral outgrowth assay (qVOA) is the gold standard for measuring inducible, replication-competent HIV-1. Using MOLT4-R5 and SupT1-R5 cell lines instead of allogeneic blasts and HIV-1 RNA detection rather than p24 enzyme-immunoassay (EIA) has been proposed to improve the sensitivity of the qVOA. It is unclear, however, how these alternative approaches affect qVOA performance. We compared three qVOAs methods across 15 persons with HIV-1 on suppressive antiretroviral therapy and found that the MOLT4-R5 method yielded a significantly higher proportion of p24-positive wells (42%) than both the allogeneic blast (29%) and SupT1-R5 (32%) assays. Additionally, 5 of 7 qVOAs that were negative by p24 EIA showed viral outgrowth by HIV-1 RNA quantification (>10-fold increase within 7 days). These findings reveal the potential for underestimation of the latent, inducible reservoir by qVOA depending on the target cells used and the measure of viral outgrowth. Use of MOLT4-R5 cells with both p24 EIA and HIV-1 RNA to detect viral outgrowth was the most sensitive method.
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- 2021
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8. HIV-specific T cell responses reflect substantive in vivo interactions with antigen despite long-term therapy
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Eva M. Stevenson, Adam R. Ward, Ronald Truong, Allison S. Thomas, Szu-Han Huang, Thomas R. Dilling, Sandra Terry, John K. Bui, Talia M. Mota, Ali Danesh, Guinevere Q. Lee, Andrea Gramatica, Pragya Khadka, Winiffer D. Conce Alberto, Rajesh T. Gandhi, Deborah K. McMahon, Christina M. Lalama, Ronald J. Bosch, Bernard Macatangay, Joshua C. Cyktor, Joseph J. Eron, John W. Mellors, R. Brad Jones, and for the AIDS Clinical Trials Group A5321 Team
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AIDS/HIV ,Immunology ,Medicine - Abstract
Antiretroviral therapies (ARTs) abrogate HIV replication; however, infection persists as long-lived reservoirs of infected cells with integrated proviruses, which reseed replication if ART is interrupted. A central tenet of our current understanding of this persistence is that infected cells are shielded from immune recognition and elimination through a lack of antigen expression from proviruses. Efforts to cure HIV infection have therefore focused on reactivating latent proviruses to enable immune-mediated clearance, but these have yet to succeed in reducing viral reservoirs. Here, we revisited the question of whether HIV reservoirs are predominately immunologically silent from a new angle: by querying the dynamics of HIV-specific T cell responses over long-term ART for evidence of ongoing recognition of HIV-infected cells. In longitudinal assessments, we show that the rates of change in persisting HIV Nef-specific responses, but not responses to other HIV gene products, were associated with residual frequencies of infected cells. These Nef-specific responses were highly stable over time and disproportionately exhibited a cytotoxic, effector functional profile, indicative of recent in vivo recognition of HIV antigens. These results indicate substantial visibility of the HIV-infected cells to T cells on stable ART, presenting both opportunities and challenges for the development of therapeutic approaches to curing infection.
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- 2021
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9. How do we characterize temperament? Broad testing of temperament across time and contexts in low-variable conditions
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Elyse K. McMahon, Saaniya Farhan, and Sonia A. Cavigelli
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Animal Science and Zoology ,Ecology, Evolution, Behavior and Systematics - Published
- 2023
10. Using the RE-AIM framework to evaluate physical activity-based fall prevention interventions in older adults with chronic conditions: A systematic review
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Elizabeth A Choma, Diane J Treat-Jacobson, Manda L Keller-Ross, Julian Wolfson, Lauren Martin, and Siobhan K McMahon
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Behavioral Neuroscience ,Applied Psychology - Abstract
Falls are a serious public health problem, especially for older adults with chronic conditions. The purpose of this systematic review was to evaluate the translational potential of physical activity-based balance interventions for older adults with common chronic conditions guided by the Reach, Effectiveness/Efficacy, Adoption, Implementation, and Maintenance (RE-AIM) framework. Databases were searched (2011-2021) to identify studies with physical activity-based fall prevention interventions for older adults with chronic conditions. Data were collected using the RE-AIM coding guide and Mixed Methods Appraisal Tool for evidence quality. The search yielded 122 articles, of which 14 distinct studies were included. The most reported RE-AIM dimensions across the studies were Reach (46.2%) and Implementation (40.5%), with Effectiveness/Efficacy (29.4%), Adoption (2.0%), and Maintenance (5.4%) being the least reported. Studies were largely conducted in controlled research environments with minimal staff involvement and without long-term follow-up periods. While studies found that physical activity-based programs were effective in improving balance, information on representativeness and adoption/maintenance of programs was lacking. Studies included sufficient details about the intervention (content, dosage, progression). External validity RE-AIM indicators were reported less frequently than internal validity indicators. The studies were of moderate quality overall. Studies often lacked information on indicators critical for understanding how to implement these programs. This review signals the need to investigate the translation of these interventions from controlled research settings to clinical settings to improve the public impact of fall prevention for this population.Falls are a serious public health problem, especially for older adults with chronic diseases who have a higher risk of falling. For this review paper, we gathered similar research articles that looked at the effects of balance exercise programs in older adults with a variety of chronic diseases and reviewed how likely they could be used in real-world settings using a guide. We found fourteen studies that met our criteria. The most common elements that authors included in their reports were how research subjects were identified and details about the exercise program design/delivery. The least common elements were the scientific outcomes of the program, how/where the program was incorporated, and the long-term effects of the program. While these balance exercise programs for older adults with chronic diseases were successful in these individual research studies, this general area of fall research is somewhat underdeveloped. Researchers should put more consideration into surroundings where these programs could take place and study how these programs could be successful in real-world settings long-term.
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- 2022
11. Engagement of older adults in <scp>STRIDE</scp> 's multifactorial fall injury prevention intervention
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Siobhan K. McMahon, Erich J. Greene, Nancy Latham, Peter Peduzzi, Thomas M. Gill, Shalender Bhasin, and David B. Reuben
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Aged, 80 and over ,Aging ,Physical Injury - Accidents and Adverse Effects ,Fall Prevention ,Prevention ,Injuries and accidents ,Medical and Health Sciences ,Older Adults ,Exercise Therapy ,Good Health and Well Being ,Risk Factors ,Clinical Research ,Geriatrics ,Patient Engagement ,80 and over ,Humans ,Geriatrics and Gerontology ,Gait ,Exercise ,Primary Care ,Aged - Abstract
Evidence-based multifactorial fall prevention interventions in clinical practice have been less effective than expected. One plausible reason is that older adults' engagement in fall prevention care is suboptimal. This was a post-hoc analysis of 2403 older adults' engagement in a multifactorial fall prevention intervention in the Strategies to Reduce Injuries and Develop Confidence in Elders (STRIDE) pragmatic trial. Based on the direct clinical care level of the Patient and Family Continuum of Engagement (CE) framework, three indicators of progressively interactive engagement were assessed: (1) Consultation (receiving information), (2) Involvement (prioritizing risks), and (3) Partnership (identifying prevention actions). Drop off at each step was determined as well as predictors of engagement. The participants' engagement waned with increasingly interactive CE domains. Although all participants received information about their positive fall risk factors (consultation) and most (51%-96%) prioritized them (involvement), fewer participants (33%-55%) identified fall prevention actions (partnership) for most of their risk factors, except for strength gait or balance problems (95%). More participants (70%) identified home exercises than other actions. Finally, fall prevention actions were identified more commonly among participants who received two visits compared to one (OR=2.33 [95% CI, 2.06-2.64]), were ≥80 years old (OR=1.83 [95% CI, 1.51-2.23]), and had fewer fall risk factors (OR=0.90 [95% CI, 0.83-0.99]). The drop-off in participants' engagement based on the level of their interaction with clinicians suggests that future multifactorial fall prevention interventions need to be more focused on interactive patient-clinician partnerships that help older adults increase and maintain fall prevention actions. Our analyses suggest that more frequent contact with clinicians and more monitoring of the implementation and outcomes of Fall Prevention Care Plans could potentially improve engagement and help older adults maintain fall prevention actions.
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- 2022
12. No evidence that circulating HIV-specific immune responses contribute to persistent inflammation and immune activation in persons on long-term ART
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Adam R, Ward, Allison S, Thomas, Eva M, Stevenson, Szu-Han, Huang, Sheila M, Keating, Rajesh T, Gandhi, Deborah K, McMahon, Ronald J, Bosch, Bernard J, Macatangay, Joshua C, Cyktor, Joseph J, Eron, John W, Mellors, and R Brad, Jones
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CD4-Positive T-Lymphocytes ,Inflammation ,Infectious Diseases ,Immunology ,HIV-1 ,Humans ,RNA ,Immunology and Allergy ,HIV Infections ,Lymphocyte Activation ,Biomarkers - Abstract
People with HIV (PWH) have persistently elevated levels of inflammation and immune activation despite suppressive antiretroviral therapy (ART), with specific biomarkers showing associations with non-AIDS-defining morbidities and mortality. We investigated the potential role of the HIV-specific adaptive immune response, which also persists under ART, in driving levels of these clinically relevant biomarkers.Cohort-based study.HIV-specific IFN-γ-producing T-cell responses and antibody concentrations were measured in blood at study entry in the ACTG A5321 cohort, following a median of 7 years of suppressive ART. HIV persistence measures including cell-associated (CA)-DNA, CA-RNA, and plasma HIV RNA (single-copy assay) were also assessed at study entry. Plasma inflammatory biomarkers and T-cell activation and cycling were measured at a pre-ART time point and at study entry.Neither the magnitudes of HIV-specific T-cell responses nor HIV antibody levels were correlated with levels of the inflammatory or immune activation biomarkers, including hs-CRP, IL-6, neopterin, sCD14, sCD163, TNF-α, %CD38 + HLA-DR + CD8 + and CD4 + cells, and %Ki67 + CD8 + and CD4 + cells - including after adjustment for pre-ART biomarker level. Plasma HIV RNA levels were modestly correlated with CD8 + T-cell activation ( r = 0.25, P = 0.027), but other HIV persistence parameters were not associated with these biomarkers. In mediation analysis, relationships between HIV persistence parameters and inflammatory biomarkers were not influenced by either HIV-specific T-cell responses or antibody levels.Adaptive HIV-specific immune responses do not appear to contribute to the elevated inflammatory and immune activation profile in persons on long-term ART.
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- 2022
13. Documentation of social determinants in electronic health records with and without standardized terminologies: A comparative study
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Karen A Monsen, Joyce M Rudenick, Nicole Kapinos, Kathryn Warmbold, Siobhan K McMahon, and Erica N Schorr
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Medicine - Abstract
Background: Electronic health records (EHRs) are a promising new source of population health data that may improve health outcomes. However, little is known about the extent to which social and behavioral determinants of health (SBDH) are currently documented in EHRs, including how SBDH are documented, and by whom. Standardized nursing terminologies have been developed to assess and document SBDH. Objective: We examined the documentation of SBDH in EHRs with and without standardized nursing terminologies. Methods: We carried out a review of the literature for SBDH phrases organized by topic, which were used for analyses. Key informant interviews were conducted regarding SBDH phrases. Results: In nine EHRs (six acute care, three community care) 107 SBDH phrases were documented using free text, structured text, and standardized terminologies in diverse screens and by multiple clinicians, admitting personnel, and other staff. SBDH phrases were documented using one of three standardized terminologies ( N = average number of phrases per terminology per EHR): ICD-9/10 ( N = 1); SNOMED CT ( N = 1); Omaha System ( N = 79). Most often, standardized terminology data were documented by nurses or other clinical staff versus receptionists or other non-clinical personnel. Documentation ‘unknown’ differed significantly between EHRs with and without the Omaha System (mean = 26.0 (standard deviation (SD) = 8.7) versus mean = 74.5 (SD = 16.5)) ( p = .005). SBDH documentation in EHRs differed based on the presence of a nursing terminology. Conclusions: The Omaha System enabled a more comprehensive, holistic assessment and documentation of interoperable SBDH data. Further research is needed to determine SBDH data elements that are needed across settings, the uses of SBDH data in practice, and to examine patient perspectives related to SBDH assessments.
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- 2019
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14. Godiva-IV Dosimetry Exercise 2022 (IER-538 CED4A Report)
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A. Tamashiro, D. Stone, L. Anspach, B. Champine, M. Firpo, P. Maggi, S. Uchiyama, P. Witter, P. Yap-Chiongco, S. Mitchell, C. Percher, D. Heinrichs, J. Goda, T. Grove, T. Cutler, N. Thompson, R. Weldon, L. Overbay, T. Omoto, M. Gadd, E. Hillmer, L. Sharisky, D. Ward, J. Kilbane, D. Roberts, R. Abbott, J. Epps, D. Vogt, H. Healy, S. Murphy, R. Ludwigsen, K. Veinot, K. Mcmahon, A. Detweiler, A. Romanyukha, D. Boozer, K. Consani, P. Angus, N. Vessey, K. Chapman, G. McCabe, E. Cornick, F. Trompier, Y. Ristic, J. Herth, and S. Pignet
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- 2023
15. Associations Between Multiple Measures of HIV-1 Persistence in Persons on Suppressive Antiretroviral Therapy
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Ronald J, Bosch, Rajesh T, Gandhi, Hanna, Mar, Joseph J, Eron, Joshua C, Cyktor, Deborah K, McMahon, and John W, Mellors
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CD4-Positive T-Lymphocytes ,Major Articles and Brief Reports ,Infectious Diseases ,Proviruses ,HIV Seropositivity ,HIV-1 ,Humans ,RNA ,Immunology and Allergy ,HIV Infections ,Viral Load ,bacterial infections and mycoses ,Virus Latency - Abstract
Clinical research to achieve antiretroviral therapy-free remission requires quantitative assays of the HIV-1 reservoir. Intact proviral DNA (IPD) measurement has greater throughput than the quantitative viral outgrowth assay (QVOA). In 25 individuals with well-documented long-term viral suppression, IPD levels and infectious units per million CD4+ T cells by QVOA strongly correlated (r = 0.59, P = .002), and IPD correlated with total cell-associated HIV-1 DNA and cell-associated HIV-1 RNA (r = 0.62 and r = 0.59, P ≤ .002). IPD may provide an accessible marker of inducible replication-competent virus, total numbers of infected cells, and cellular expression of HIV-1 RNA.
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- 2022
16. Toward Clinical Adoption of Standardized mHealth Solutions
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Robin R. Austin, Michelle A. Mathiason, Sheng-Chieh Lu, Ruth A. Lindquist, Siobhan K. McMahon, David S. Pieczkiewicz, and Karen A. Monsen
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Marketing ,Pharmacology ,Organizational Behavior and Human Resource Management ,Strategy and Management ,Drug Discovery ,Pharmaceutical Science - Published
- 2022
17. Rethinking how and when to report descriptions of behavior change content within interventions: a case study of an ongoing physical activity trial (ready steady 3.0)
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Siobhan K McMahon, Kait Macheledt, Elizabeth A Choma, Beth A Lewis, Weihua Guan, Jean F Wyman, and Alexander J Rothman
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Behavioral Neuroscience ,Applied Psychology - Abstract
Specifications of what and how much health behavior change (BC) content within research interventions are needed to advance BC science, its implementation, and dissemination. We analyzed the types and dosages of the smallest potentially active BC ingredients and associated behavioral prescriptions intended to be delivered in an ongoing physical activity optimization trial for older adults (Ready Steady 3.0 [RS3]). We defined BC types as behavior change techniques (BCT) and behavioral prescriptions. Our protocol integrated the BCT Taxonomy coding procedures with BCT roles (primary or secondary) and, when relevant, linkages to behavioral prescriptions. Primary BCTs targeted theoretical mechanisms of action, whereas secondary BCTs supported primary BCT delivery. Behavioral prescriptions represented what participants were encouraged to do with each primary BCT in RS3 (ascertain, practice, implement). We assessed dosage parameters of duration, frequency, and amount in each BCT and prescription. Results provided a catalog of in-depth, multidimensional content specifications with 12 primary BCTs, each supported by 2-7 secondary BCTs, with dosages ranging from 2 to 8 weeks, 1 to 8 contacts, and 5 to 451 minutes. Minutes spent on behavioral prescriptions varied: ascertain (1 to 41), practice (5 to 315), and implement (0 to 38). Results can be organized and summarized in varied ways (e.g., by content component) to strengthen future assessments of RS3 fidelity and intervention refinement. Results highlight potential benefits of this early, integrated approach to analyzing BC content and frames questions about how such information might be incorporated and disseminated with reporting research outcomes.
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- 2023
18. Transformed by Crisis: The Presidency of George W. Bush and American Politics
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J. Kraus, K. McMahon, D. Rankin
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- 2016
19. Effect of the STRIDE fall injury prevention intervention on falls, fall injuries, and health-related quality of life
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David A. Ganz, Anita H. Yuan, Erich J. Greene, Nancy K. Latham, Katy Araujo, Albert L. Siu, Jay Magaziner, Jerry H. Gurwitz, Albert W. Wu, Neil B. Alexander, Robert B. Wallace, Susan L. Greenspan, Jeremy Rich, Elena Volpi, Stephen C. Waring, Patricia C. Dykes, Fred Ko, Neil M. Resnick, Siobhan K. McMahon, Shehzad Basaria, Rixin Wang, Charles Lu, Denise Esserman, James Dziura, Michael E. Miller, Thomas G. Travison, Peter Peduzzi, Shalender Bhasin, David B. Reuben, and Thomas M. Gill
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Aging ,care management ,Clinical Trials and Supportive Activities ,Medical and Health Sciences ,Fractures, Bone ,Clinical Research ,falls ,Humans ,Bone ,Aged ,Prevention ,Rehabilitation ,Injuries and accidents ,Hospitalization ,health-related quality of life ,Good Health and Well Being ,pragmatic trials ,Geriatrics ,Quality of Life ,older persons ,Injury (total) Accidents/Adverse Effects ,Independent Living ,Patient Safety ,Geriatrics and Gerontology ,Fractures - Abstract
BackgroundFalls are common in older adults and can lead to severe injuries. The Strategies to Reduce Injuries and Develop Confidence in Elders (STRIDE) trial cluster-randomized 86 primary care practices across 10 health systems to a multifactorial intervention to prevent fall injuries, delivered by registered nurses trained as falls care managers, or enhanced usual care. STRIDE enrolled 5451 community-dwelling older adults age ≥70 at increased fall injury risk.MethodsWe assessed fall-related outcomes via telephone interviews of participants (or proxies) every 4 months. At baseline, 12 and 24 months, we assessed health-related quality of life (HRQOL) using the EQ-5D-5L and EQ-VAS. We used Poisson models to assess intervention effects on falls, fall-related fractures, fall injuries leading to hospital admission, and fall injuries leading to medical attention. We used hierarchical longitudinal linear models to assess HRQOL.ResultsFor recurrent event models, intervention versus control incidence rate ratios were 0.97 (95% confidence interval [CI], 0.93-1.00; p= 0.048) for falls, 0.93 (95% CI, 0.80-1.08; p= 0.337) for self-reported fractures, 0.89 (95% CI, 0.73-1.07; p= 0.205) for adjudicated fractures, 0.91 (95% CI, 0.77-1.07; p= 0.263) for falls leading to hospital admission, and 0.97 (95% CI, 0.89-1.06; p= 0.477) for falls leading to medical attention. Similar effect sizes (non-significant) were obtained for dichotomous outcomes (e.g., participants with ≥1 events). The difference in least square mean change over time in EQ-5D-5L (intervention minus control) was 0.009 (95% CI, -0.002 to 0.019; p= 0.106) at 12 months and 0.005 (95% CI, -0.006 to 0.015; p= 0.384) at 24 months.ConclusionsAcross a standard set of outcomes typically reported in fall prevention studies, we observed modest improvements, one of which was statistically significant. Future work should focus on patient-, practice-, and organization-level operational strategies to increase the real-world effectiveness of interventions, and improving the ability to detect small but potentially meaningful clinical effects.Clinicaltrialsgov identifier: NCT02475850.
- Published
- 2022
20. Oxytocin prevents dysregulation of the acute stress response and glucocorticoid-induced oxidative stress in chronically isolated prairie voles
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Jennie R. Stevenson, Elyse K. McMahon, Taylor L. McNeely, and Mark F. Haussmann
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Psychiatry and Mental health ,Endocrinology ,Endocrine and Autonomic Systems ,Endocrinology, Diabetes and Metabolism ,Biological Psychiatry - Published
- 2023
21. T-cell responses targeting HIV Nef uniquely correlate with infected cell frequencies after long-term antiretroviral therapy.
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Allison S Thomas, Kimberley L Jones, Rajesh T Gandhi, Deborah K McMahon, Joshua C Cyktor, Dora Chan, Szu-Han Huang, Ronald Truong, Alberto Bosque, Amanda B Macedo, Colin Kovacs, Erika Benko, Joseph J Eron, Ronald J Bosch, Christina M Lalama, Samuel Simmens, Bruce D Walker, John W Mellors, and R Brad Jones
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Immunologic diseases. Allergy ,RC581-607 ,Biology (General) ,QH301-705.5 - Abstract
HIV-specific CD8+ T-cell responses limit viral replication in untreated infection. After the initiation of antiretroviral therapy (ART), these responses decay and the infected cell population that remains is commonly considered to be invisible to T-cells. We hypothesized that HIV antigen recognition may persist in ART-treated individuals due to low-level or episodic protein expression. We posited that if persistent recognition were occurring it would be preferentially directed against the early HIV gene products Nef, Tat, and Rev as compared to late gene products, such as Gag, Pol, and Env, which have higher barriers to expression. Using a primary cell model of latency, we observed that a Nef-specific CD8+ T-cell clone exhibited low-level recognition of infected cells prior to reactivation and robust recognition shortly thereafter. A Gag-specific CD8+ T-cell clone failed to recognized infected cells under these conditions, corresponding with a lack of detectable Gag expression. We measured HIV-specific T-cell responses in 96 individuals who had been suppressed on ART for a median of 7 years, and observed a significant, direct correlation between cell-associated HIV DNA levels and magnitudes of IFN-γ-producing Nef/Tat/Rev-specific T-cell responses. This correlation was confirmed in an independent cohort (n = 18). Correlations were not detected between measures of HIV persistence and T-cell responses to other HIV antigens. The correlation with Nef/Tat/Rev-specific T-cells was attributable to Nef-specific responses, the breadth of which also correlated with HIV DNA levels. These results suggest that ongoing Nef expression in ART-treated individuals drives preferential maintenance and/or expansion of T-cells reactive to this protein, implying sensing of infected cells by the immune system. The direct correlation, however, suggests that recognition does not result in efficient elimination of infected cells. These results raise the possibility that enhancing the cytolytic activity of Nef-specific T-cells may lead to reductions in infected cell frequencies, even in the absence of therapeutic latency reversal.
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- 2017
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22. Levels of HIV-1 persistence on antiretroviral therapy are not associated with markers of inflammation or activation.
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Rajesh T Gandhi, Deborah K McMahon, Ronald J Bosch, Christina M Lalama, Joshua C Cyktor, Bernard J Macatangay, Charles R Rinaldo, Sharon A Riddler, Evelyn Hogg, Catherine Godfrey, Ann C Collier, Joseph J Eron, John W Mellors, and ACTG A5321 Team
- Subjects
Immunologic diseases. Allergy ,RC581-607 ,Biology (General) ,QH301-705.5 - Abstract
Antiretroviral therapy (ART) reduces levels of HIV-1 and immune activation but both can persist despite clinically effective ART. The relationships among pre-ART and on-ART levels of HIV-1 and activation are incompletely understood, in part because prior studies have been small or cross-sectional. To address these limitations, we evaluated measures of HIV-1 persistence, inflammation, T cell activation and T cell cycling in a longitudinal cohort of 101 participants who initiated ART and had well-documented sustained suppression of plasma viremia for a median of 7 years. During the first 4 years following ART initiation, HIV-1 DNA declined by 15-fold (93%) whereas cell-associated HIV-1 RNA (CA-RNA) fell 525-fold (>99%). Thereafter, HIV-1 DNA levels continued to decline slowly (5% per year) with a half-life of 13 years. Participants who had higher HIV-1 DNA and CA-RNA before starting treatment had higher levels while on ART, despite suppression of plasma viremia for many years. Markers of inflammation and T cell activation were associated with plasma HIV-1 RNA levels before ART was initiated but there were no consistent associations between these markers and HIV-1 DNA or CA-RNA during long-term ART, suggesting that HIV-1 persistence is not driving or driven by inflammation or activation. Higher levels of inflammation, T cell activation and cycling before ART were associated with higher levels during ART, indicating that immunologic events that occurred well before ART initiation had long-lasting effects despite sustained virologic suppression. These findings should stimulate studies of viral and host factors that affect virologic, inflammatory and immunologic set points prior to ART initiation and should inform the design of strategies to reduce HIV-1 reservoirs and dampen immune activation that persists despite ART.
- Published
- 2017
- Full Text
- View/download PDF
23. An initiative to increase organ donor registration among persons with HIV
- Author
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Ghady Haidar, Divya Bhamidipati, Linda Despines, Colleen Sullivan, Susan Stuart, J. Michael Beckham, Deborah K. McMahon, and Peter Veldkamp
- Subjects
Transplantation ,Tissue and Organ Procurement ,Immunology and Allergy ,Humans ,Pharmacology (medical) ,HIV Infections ,Tissue Donors - Published
- 2022
24. Abstract 3231: Temporal changes in intratumoral and systemic lymphocytes in response to short and long course radiotherapy regimens in locally advanced rectal cancer
- Author
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Lily V. Hillson, Ross K. McMahon, Kathryn A. Pennel, Jean A. Quinn, Leia Jones, Raheleh Amirkhah, Aula Ammar, Phimmada Hatthakarnkul, Annabelle Ferguson, Simon W. Milling, Alec McDonald, Philip D. Dunne, Joanne Edwards, Sean M. O'Cathail, and Campbell S. Roxburgh
- Subjects
Cancer Research ,Oncology - Abstract
Background. Two pre-operative radiotherapy (RT) regimens are in common use for patients (pts) with locally advanced rectal cancer (LARC): Conventionally fractionated, long course chemoradiation (LCCRT, 25x1.8Gy with concomitant chemotherapy) or hypofractionated short-course RT (5X5Gy) followed by systemic chemotherapy (SCRT-C). RT is thought to induce immune responses to cellular damage, but the understanding of their evolution and relation to fractionation is limited. We are conducting a serial biospecimen collection in such pts with baseline, 2, 6 and 12 week (wk) sampling. We report serial measurement of tumor and peripheral blood lymphocyte responses for each regimen. Method. Multiplex immunofluorescence quantified tumor infiltrating lymphocytes (CD8, FOXP3). Routine diagnostic flow cytometry quantified circulating lymphocytes. A multiplex ELISA quantified cytokines in blood plasma. Bulk RNA-sequencing (QuantSeq) quantified gene expression within the tumor. Result. We report results for 20pts who received RT for stage III/IV LARC (13 LCCRT, 7 SCRT-C). Biopsy results are available for 10pts, circulating lymphocytes for 20pts and peripheral blood cytokines for 16pts. In LCCRT patients (n=8), relative to baseline, tumor infiltrating cytotoxic (CD8+) T cells were uniformly decreased during (2wks, P Conclusion. LCCRT caused a drop in T cells during treatment, whilst SCRT-C appears to induce intra-tumoral T cell responses from wk2 and abrogates systemic reactions to a lesser extent. These results require evaluation in a larger cohort but have implications for understanding how RT induces microenvironmental changes and impacts pelvic bone marrow. We show in vivo that SCRT may be more immunostimulatory in LARC, with implications for trials combining RT with immunotherapy. Citation Format: Lily V. Hillson, Ross K. McMahon, Kathryn A. Pennel, Jean A. Quinn, Leia Jones, Raheleh Amirkhah, Aula Ammar, Phimmada Hatthakarnkul, Annabelle Ferguson, Simon W. Milling, Alec McDonald, Philip D. Dunne, Joanne Edwards, Sean M. O'Cathail, Campbell S. Roxburgh. Temporal changes in intratumoral and systemic lymphocytes in response to short and long course radiotherapy regimens in locally advanced rectal cancer [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2023; Part 1 (Regular and Invited Abstracts); 2023 Apr 14-19; Orlando, FL. Philadelphia (PA): AACR; Cancer Res 2023;83(7_Suppl):Abstract nr 3231.
- Published
- 2023
25. CD4
- Author
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Iulia, Popescu, Mark E, Snyder, Carlo J, Iasella, Stefanie J, Hannan, Ritchie, Koshy, Robin, Burke, Antu, Das, Mark J, Brown, Emily J, Lyons, Sophia C, Lieber, Xiaoping, Chen, John C, Sembrat, Payal, Bhatt, Evan, Deng, Xiaojing, An, Kelsey, Linstrum, Georgios, Kitsios, Ioannis, Konstantinidis, Melissa, Saul, Daniel J, Kass, Jonathan K, Alder, Bill B, Chen, Elizabeth A, Lendermon, Silpa, Kilaru, Bruce, Johnson, Joseph M, Pilewski, Joseph E, Kiss, Alan H, Wells, Alison, Morris, Bryan J, McVerry, Deborah K, McMahon, Darrell J, Triulzi, Kong, Chen, Pablo G, Sanchez, and John F, McDyer
- Subjects
CD4-Positive T-Lymphocytes ,SARS-CoV-2 ,Tumor Necrosis Factor-alpha ,Lymphopenia ,Leukocytes, Mononuclear ,COVID-19 ,Cytokines ,Humans ,Tumor Necrosis Factor Inhibitors ,CD8-Positive T-Lymphocytes ,Infliximab ,Receptors, Tumor Necrosis Factor - Published
- 2022
26. Older Adults' Biobehavioral Fall Risks Were Affected by the COVID-19 Pandemic: Lessons Learned for Future Fall Prevention Research to Incorporate Multilevel Perspectives
- Author
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Hiroko Kiyoshi-Teo, Shigeko (Seiko) Izumi, Sydnee Stoyles, and Siobhan K McMahon
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Health (social science) ,Life-span and Life-course Studies ,Health Professions (miscellaneous) - Abstract
Background and Objectives Examining the impact of coronavirus disease 2019 (COVID-19) pandemic on fall risks may provide insight into how multilevel factors as described in National Institute of Nursing Research's (NINR’s) draft strategic plan can guide future fall prevention research. This article describes the affect of COVID-19 on fall risks from the perspective of older adults who live in assisted living facilities (ALFs), and explores the needs and approaches to implement fall prevention interventions at individual, social, community, and policy levels. Research Design and Methods Exploratory survey study. Participants from a fall prevention study at 2 ALFs in Oregon were invited to the study. Survey questions asked about COVID experience, and changes in fall risks and day-to-day activities in Spring 2020. Quantitative responses were analyzed using descriptive statistics and Cohen’s d effect sizes. Qualitative responses were analyzed using conventional content analysis. Results Thirteen participants (age: M = 87.08, standard deviation = 6.52) responded. More participants reported feeling unsteady compared to pre-COVID data (38% vs. 62%), while the proportion of those worried about falling remained the same at 38%. Participants reported negligible decreases in importance of fall prevention and small decreases in confidence of fall prevention (Cohen’s d = −0.13 and −0.21, respectively). The themes related to the affect of COVID on fall risks were: not to worry about fall risks but be cautious and physical activity is important, but it’s hard during COVID. Impact of COVID on day-to-day activities were: varying degrees of concern for COVID, lack of social and community support, and finding unique ways to cope with COVID. Discussion and Implications These individual-level perspectives suggest that older adults were at increased risk for falling. Results exemplify the influence of broader-level factors (e.g., social, community, and policy) on individual biobehavioral factors (e.g., fall risks and health behaviors), and illustrate the value of examining multilevel factors in future fall prevention research.
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- 2022
27. Supporting Mindfulness With Technology in Students With Intellectual and Developmental Disabilities
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Amanda K. McMahon, Anne E. Cox, and Darcy Miller
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Mindfulness ,business.industry ,media_common.quotation_subject ,05 social sciences ,050301 education ,Affect (psychology) ,Mental health ,Computer Science Applications ,Education ,Increased risk ,0501 psychology and cognitive sciences ,Meditation ,Young adult ,business ,Psychology ,0503 education ,Wearable technology ,050104 developmental & child psychology ,media_common ,Clinical psychology - Abstract
Young adults with intellectual and developmental disabilities (IDDs) are at an increased risk of developing mental health disorders. Mindfulness may be one strategy that can help support the mental health needs of this particular population; however, those with (IDDs) may need additional support in cultivating the practice. The purpose of this study was to investigate the use of a wearable device designed to provide neurofeedback to help promote state mindfulness in young adults with (IDDs). Additionally, attention and affect mechanisms were examined, as well as the social validity of using the wearable device. Using an A-B-A-B single-subject study design, five ( age range = 18–25) students completed 20 sessions that consisted of listening and not listening to neurofeedback. Results provide some support for the positive effect of neurofeedback on state mindfulness, paying attention to the breath, and positive affect. All five students reported acceptability of using the device.
- Published
- 2020
28. Digital Tools for Visual Arts: Multiple Means of Artsy Action and Expression
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Mykala Anglin, Amanda K. McMahon, Katie Hirschfelder, and Don D. McMahon
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Cognitive science ,Expression (architecture) ,Action (philosophy) ,Developmental and Educational Psychology ,Psychology ,Education - Published
- 2020
29. Book Review
- Author
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H. Andersson and K. McMahon
- Subjects
Economics, Econometrics and Finance (miscellaneous) ,Law - Published
- 2020
30. A physiological profile approach to animal temperament: How to understand the functional significance of individual differences in behaviour
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Elyse K. McMahon, Elizabeth Youatt, and Sonia A. Cavigelli
- Subjects
Behavior, Animal ,General Immunology and Microbiology ,Individuality ,Animals ,General Medicine ,Temperament ,General Agricultural and Biological Sciences ,General Biochemistry, Genetics and Molecular Biology ,Personality ,General Environmental Science - Abstract
Animal behaviour research has experienced a renewed interest in consistent individual differences (i.e. animal personality or temperament). Recent ecological studies have identified environmental conditions that give rise to the development and evolution of temperaments and to fitness-related outcomes of temperament. Additional literature has also described relationships between temperaments and physiological regulation. However, one-to-one relationships between one behavioural trait and one physiological system do not account for co-selection of behavioural and physiological traits, nor the complex signalling among physiological systems. In the current paper, we review the literature on multiple physiological processes associated with temperament, propose temperament-specific physiological profiles, and focus on next steps to understand the functional significance, evolution and maintenance of temperaments. We propose that to understand causes and consequences of temperament we need to characterize integrative physiological profiles associated with different temperaments.
- Published
- 2022
31. CD4(+) T-Cell Dysfunction in Severe COVID-19 Disease Is Tumor Necrosis Factor-alpha/Tumor Necrosis Factor Receptor 1-Dependent
- Author
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Iulia Popescu, Mark E. Snyder, Carlo J. Iasella, Stefanie J. Hannan, Ritchie Koshy, Robin Burke, Antu Das, Mark J. Brown, Emily J. Lyons, Sophia C. Lieber, Xiaoping Chen, John C. Sembrat, Payal Bhatt, Evan Deng, Xiaojing An, Kelsey Linstrum, Georgios Kitsios, Ioannis Konstantinidis, Melissa Saul, Daniel J. Kass, Jonathan K. Alder, Bill B. Chen, Elizabeth A. Lendermon, Silpa Kilaru, Bruce Johnson, Joseph M. Pilewski, Joseph E. Kiss, Alan H. Wells, Alison Morris, Bryan J. McVerry, Deborah K. McMahon, Darrell J. Triulzi, Kong Chen, Pablo G. Sanchez, and John F. McDyer
- Subjects
Pulmonary and Respiratory Medicine ,Critical Care and Intensive Care Medicine ,COVID-19 ,SARS-CoV-2-infection ,TNF-α ,lymphopenia ,CD41 T cells - Abstract
RATIONALE: Lymphopenia is common in severe coronavirus disease (COVID-19), yet the immune mechanisms are poorly understood. As inflammatory cytokines are increased in severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection, we hypothesized a role in contributing to reduced T-cell numbers. OBJECTIVES: We sought to characterize the functional SARS-CoV-2 T-cell responses in patients with severe versus recovered, mild COVID-19 to determine whether differences were detectable. METHODS: Using flow cytometry and single-cell RNA sequence analyses, we assessed SARS-CoV-2-specific responses in our cohort. MEASUREMENTS AND MAIN RESULTS: In 148 patients with severe COVID-19, we found lymphopenia was associated with worse survival. CD4(+) lymphopenia predominated, with lower CD4(+)/CD8(+) ratios in severe COVID-19 compared with patients with mild disease (P < 0.0001). In severe disease, immunodominant CD4(+) T-cell responses to Spike-1 (S1) produced increased in vitro TNF-alpha (tumor necrosis factor-alpha) but demonstrated impaired S1-specific proliferation and increased susceptibility to activation-induced cell death after antigen exposure. CD4(+) TNF-alpha(+) T-cell responses inversely correlated with absolute CD4(+) counts from patients with severe COVID-19 (n = 76; R = - 0.797; P < 0.0001). In vitro TNF-alpha blockade, including infliximab or anti-TNF receptor 1 antibodies, strikingly rescued S1-specific CD4 (+) T-cell proliferation and abrogated S1-specific activation-induced cell death in peripheral blood mononuclear cells from patients with severe COVID-19 (P < 0.001). Single-cell RNA sequencing demonstrated marked downregulation of type-1 cytokines and NFKB signaling in S1-stimulated CD4(+) cells with infliximab treatment. We also evaluated BAL and lung explant CD4(+) T cells recovered from patients with severe COVID-19 and observed that lung T cells produced higher TNF-alpha compared with peripheral blood mononuclear cells. CONCLUSIONS: Together, our findings show CD4(+) dysfunction in severe COVID-19 is TNF-alpha/TNF receptor 1-dependent through immune mechanisms that may contribute to lymphopenia. TNF-alpha blockade may be beneficial in severe COVID-19.
- Published
- 2022
32. Progressive transformation of the HIV-1 reservoir cell profile over two decades of antiviral therapy
- Author
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Xiaodong Lian, Kyra W. Seiger, Elizabeth M. Parsons, Ce Gao, Weiwei Sun, Gregory T. Gladkov, Isabelle C. Roseto, Kevin B. Einkauf, Matthew R. Osborn, Joshua M. Chevalier, Chenyang Jiang, Jane Blackmer, Mary Carrington, Eric S. Rosenberg, Michael M. Lederman, Deborah K. McMahon, Ronald J. Bosch, Jeffrey M. Jacobson, Rajesh T. Gandhi, Michael J. Peluso, Tae-Wook Chun, Steven G. Deeks, Xu G. Yu, and Mathias Lichterfeld
- Subjects
Virology ,Parasitology ,Microbiology - Abstract
HIV-1 establishes a life-long reservoir of virally infected cells which cannot be eliminated by antiretroviral therapy (ART). Here, we demonstrate a markedly altered viral reservoir profile of long-term ART-treated individuals, characterized by large clones of intact proviruses preferentially integrated in heterochromatin locations, most prominently in centromeric satellite/micro-satellite DNA. Longitudinal evaluations suggested that this specific reservoir configuration results from selection processes that promote the persistence of intact proviruses in repressive chromatin positions, while proviruses in permissive chromosomal locations are more likely to be eliminated. A bias toward chromosomal integration sites in heterochromatin locations was also observed for intact proviruses in study participants who maintained viral control after discontinuation of antiretroviral therapy. Together, these results raise the possibility that antiviral selection mechanisms during long-term ART may induce an HIV-1 reservoir structure with features of deep latency and, possibly, more limited abilities to drive rebound viremia upon treatment interruptions.
- Published
- 2023
33. The Planetary Data System. A Case Study in the Development and Management of Meta-Data for a Scientific Digital Library.
- Author
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J. Steven Hughes and Susan K. McMahon
- Published
- 1998
- Full Text
- View/download PDF
34. Assessing Parental Discharge Readiness by Using the Ticket to Home Survey Tool
- Author
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Zephyr D. Dworsky, Kyung E. Rhee, Aarti R. Patel, Molly K. McMahon, Heather C. Pierce, and Erin Stucky Fisher
- Subjects
Parents ,Pediatrics, Perinatology and Child Health ,Aftercare ,Humans ,Pilot Projects ,General Medicine ,Child ,Hospitals, Pediatric ,Pediatrics ,Patient Discharge - Abstract
OBJECTIVES Ticket to Home (TTH), a survey tool designed to assess parental comprehension of their child’s hospitalization and postdischarge care needs, allows providers to address knowledge gaps before discharge. Our goal was to evaluate the impact of TTH on parents’ retention of discharge teaching. METHODS In this pilot study, we enrolled a convenience sample of families admitted to pediatric hospital medicine and randomly assigned families on the basis of team assignment. The intervention group received TTH before discharge. The control group received usual care (without TTH survey tool). Both groups were sent a survey 24 to 72 hours postdischarge to assess parental understanding of discharge teaching. A senior-level provider also completed a survey; responses were compared with evaluate parent level of understanding. Descriptive statistics and logistic regression were used for analysis. RESULTS Although 495 parents consented to participate, only 100 completed the necessary surveys (41 intervention and 59 control). Both groups showed high parent-provider concordance regarding reason for admission (92.7% intervention versus 86.4% control; P = .33). The intervention group had significantly higher concordance for return precautions (90.2% vs 58.2%; P < .001), which remained significant when controlling for covariates (odds ratio 6.24, 95% confidence interval 1.78–21.93). Most parents in the intervention group felt sharing TTH responses with their medical team was beneficial (95.0%). CONCLUSIONS Parents who received TTH before discharge were more likely to accurately recall return precautions and valued sharing TTH results with the team. Given that response bias may have affected pilot results, additional studies in which researchers use larger samples with more diverse patient populations is required.
- Published
- 2021
35. Prospective Evaluation of Coronavirus Disease 2019 (COVID-19) Vaccine Responses Across a Broad Spectrum of Immunocompromising Conditions: the COVID-19 Vaccination in the Immunocompromised Study (COVICS)
- Author
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Ghady Haidar, Mounzer Agha, Andrew Bilderback, Amy Lukanski, Kelsey Linstrum, Rachel Troyan, Scott Rothenberger, Deborah K McMahon, Melissa D Crandall, Michele D Sobolewksi, P Nathan Enick, Jana L Jacobs, Kevin Collins, Cynthia Klamar-Blain, Bernard J C Macatangay, Urvi M Parikh, Amy Heaps, Lindsay Coughenour, Marc B Schwartz, Jeffrey M Dueker, Fernanda P Silveira, Mary E Keebler, Abhinav Humar, James D Luketich, Matthew R Morrell, Joseph M Pilewski, John F McDyer, Bhanu Pappu, Robert L Ferris, Stanley M Marks, John Mahon, Katie Mulvey, Sundaram Hariharan, Glenn M Updike, Lorraine Brock, Robert Edwards, Richard H Beigi, Paula L Kip, Alan Wells, Tami Minnier, Derek C Angus, and John W Mellors
- Subjects
Microbiology (medical) ,Adult ,Immunocompromised Host ,Infectious Diseases ,COVID-19 Vaccines ,SARS-CoV-2 ,Vaccination ,COVID-19 ,Humans ,HIV Infections ,Prospective Studies ,Antibodies, Viral ,BNT162 Vaccine - Abstract
Background We studied humoral responses after coronavirus disease 2019 (COVID-19) vaccination across varying causes of immunodeficiency. Methods Prospective study of fully vaccinated immunocompromised adults (solid organ transplant [SOT], hematologic malignancy, solid cancers, autoimmune conditions, human immunodeficiency virus [HIV]) versus nonimmunocompromised healthcare workers (HCWs). The primary outcome was the proportion with a reactive test (seropositive) for immunoglobulin G to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) receptor-binding domain. Secondary outcomes were comparisons of antibody levels and their correlation with pseudovirus neutralization titers. Stepwise logistic regression was used to identify factors associated with seropositivity. Results A total of 1271 participants enrolled: 1099 immunocompromised and 172 HCW. Compared with HCW (92.4% seropositive), seropositivity was lower among participants with SOT (30.7%), hematological malignancies (50.0%), autoimmune conditions (79.1%), solid tumors (78.7%), and HIV (79.8%) (P < .01). Factors associated with poor seropositivity included age, greater immunosuppression, time since vaccination, anti-CD20 monoclonal antibodies, and vaccination with BNT162b2 (Pfizer) or adenovirus vector vaccines versus messenger RNA (mRNA)-1273 (Moderna). mRNA-1273 was associated with higher antibody levels than BNT162b2 or adenovirus vector vaccines after adjusting for time since vaccination, age, and underlying condition. Antibody levels were strongly correlated with pseudovirus neutralization titers (Spearman r = 0.89, P Conclusions Antibody responses to COVID-19 vaccines were lowest among SOT and anti-CD20 monoclonal recipients, and recipients of vaccines other than mRNA-1273. Among those with intermediate antibody levels, pseudovirus neutralization titers were lower in immunocompromised patients than HCWs. Additional SARS-CoV-2 preventive approaches are needed for immunocompromised persons, which may need to be tailored to the cause of immunodeficiency.
- Published
- 2021
36. Digital Health, Fitness, and Wellness Tools for Students with Disabilities
- Author
-
Don D. McMahon, Amanda K. McMahon, Mykala Anglin, Kathryn Abrams, Kelley Wilds, and Aidan Aumel
- Subjects
Computer Science Applications ,Education - Abstract
Research on using technology to support students with intellectual and developmental disabilities in exercise, health, and wellness is not as abundant as using technology in academic areas. The purpose of this article is to provide educators with resources that will assist in filling this technology gap. This article provides examples of specific apps and wearable devices that are accessible for diverse learners and selected based on practical experience using them with this population. In this article, apps are categorized by exercise, health, and wellness, while also including helpful tools for both mobile and wearable devices. Some of these apps fall into multiple educational categories and therefore can be used for a diverse population of learners. Although these tools are not applicable to all students with intellectual and developmental disabilities, they do address the specific needs of some students.
- Published
- 2022
37. Winning the White House, 2008
- Author
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K. McMahon
- Published
- 2009
38. A qualitative study exploring middle-aged women's experiences with yoga
- Author
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Jennifer Brunet, Anne E. Cox, Jenson Price, and Amanda K. McMahon
- Subjects
Mindfulness ,media_common.quotation_subject ,Yoga ,Sample (statistics) ,Middle Aged ,Gender Studies ,Feeling ,Self care ,Humans ,Female ,Geriatrics and Gerontology ,Psychology ,Qualitative Research ,Qualitative research ,Clinical psychology ,media_common - Abstract
The purpose of this study was to explore how yoga impacts body-related thoughts, feelings, perceptions and attitudes, well-being, and self-care behaviors in a sample of middle-aged women who regularly engage in yoga in their communities. The sample included 22 women; 10 self-identified as beginners or novices and 12 self-identified as experienced in yoga. Interpretive phenomenological analysis guided the data collection, analysis, and interpretation. Four key themes were identified around the topics of: supportive yoga environment, mindfulness, self-care behaviors, and body-related perceptions. Results highlight potential elements of yoga that can support positive body-related experiences in middle-aged women.
- Published
- 2021
39. Gaps to Address in Ecological Studies of Temperament and Physiology
- Author
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Sonia A. Cavigelli and Elyse K McMahon
- Subjects
0106 biological sciences ,media_common.quotation_subject ,Ecology (disciplines) ,Physiology ,Plant Science ,010603 evolutionary biology ,01 natural sciences ,03 medical and health sciences ,Personality ,Animals ,Temperament ,030304 developmental biology ,media_common ,0303 health sciences ,Reproductive success ,Behavior, Animal ,Boldness ,Ecology ,Reproduction ,Perspective (graphical) ,Field (geography) ,Animal Science and Zoology ,Psychology ,Diversity (politics) - Abstract
Ecology is a diverse field with many researchers interested in drivers and consequences of variability within populations. Two aspects of variability that have been addressed are behavioral and physiological. While these have been shown to separately influence ecological outcomes such as survival, reproductive success, and fitness, combined they could better predict within-population variability in survival and fitness. Recently there has been a focus on potential fitness outcomes of consistent behavioral traits that are referred to as personality or temperament (e.g., boldness, sociability, and exploration). Given this recent focus, it is an optimal time to identify areas to supplement in this field, particularly in determining the relationship between temperament and physiological traits. To maximize progress, in this perspective paper, we propose that the following two areas be addressed: (1) increased diversity of species and (2) increased number of physiological processes studied, with an eye toward using more representative and relatively consistent measures across studies. We first highlight information that has been gleaned from species that are frequently studied to determine how animal personality relates to physiology and/or survival/fitness. We then shine a spotlight on important taxa that have been understudied and that can contribute meaningful, complementary information to this area of research. And last, we propose a brief array of physiological processes to relate to temperament, and that can significantly impact fitness, and that may be accessible in field studies.
- Published
- 2021
40. Aging Adults' Preferences for Wellness Program Activities and Delivery Characteristics
- Author
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Michelle A. Mathiason, Jean F. Wyman, Corjena Cheung, Kristine Mc Talley, Siobhan K McMahon, and Erica N. Schorr
- Subjects
Gerontology ,Cross-sectional study ,business.industry ,Rehabilitation ,Program activities ,Physical Therapy, Sports Therapy and Rehabilitation ,Convenience sample ,Logistic regression ,Article ,03 medical and health sciences ,0302 clinical medicine ,Quality of life (healthcare) ,Medicine ,030212 general & internal medicine ,General health ,Geriatrics and Gerontology ,Multiple Chronic Conditions ,business ,030217 neurology & neurosurgery ,Wellness Programs - Abstract
Background Lifestyle wellness programs help prevent and manage chronic diseases, yet few are designed for aging adults. Purpose Identify characteristics associated with aging adults' preferences for wellness program activities and delivery characteristics. Subjects/methods Cross-sectional, self-administered survey of a convenience sample of 386 adults aged ≥55 years. Logistic regression models identified characteristics influencing preferences. Results Current healthy behaviors, gender, and age influenced many preferences, while BMI, multiple chronic conditions, self-rated general health status, and quality of life did not. Discussion Incorporating aging adults' preferences for wellness programs will help design appealing and engaging programs.
- Published
- 2019
41. Examining Potential Psychosocial Mediators in a Physical Activity Intervention for Older Adults
- Author
-
Alexander J. Rothman, Weihua Guan, Siobhan K McMahon, Jean F. Wyman, J. Michael Oakes, and Beth A. Lewis
- Subjects
Male ,Mediation (statistics) ,Psychological intervention ,Physical activity ,Interpersonal communication ,Article ,03 medical and health sciences ,Social support ,0302 clinical medicine ,Surveys and Questionnaires ,Intervention (counseling) ,Humans ,Psychology ,030212 general & internal medicine ,Exercise ,General Nursing ,Aged ,030505 public health ,Social Support ,Middle Aged ,Self Efficacy ,Female ,0305 other medical science ,Psychosocial ,Program Evaluation ,Clinical psychology ,Intrapersonal communication - Abstract
The purpose of this study was to examine psychosocial constructs targeted as potential mediators in a prior physical activity (PA) intervention study. This secondary analysis used data from 102 older adults randomized to one of four conditions—within a 2 (Interpersonal Strategies: yes, no) x 2 (Intrapersonal Strategies: yes, no) factorial design. We tested intervention effects on social support, self-efficacy, self-regulation, and goal attainment, and whether these constructs mediated intervention effects on PA. Participants who received interventions with interpersonal strategies, compared to those who did not, increased their readiness (post-intervention), the self-regulation subscale of self-assessment, and goal attainment (post-intervention, 6-months). Participants who received interventions with intrapersonal strategies, compared to those who did not, increased their social support from family (post-intervention). There was no statistically significant mediation. To understand mechanisms through which interventions increase older adults’ PA and to improve intervention effectiveness, researchers should continue to examine potential psychosocial mediators. Clinical Trial Registry: NCT02433249.
- Published
- 2019
42. Validation of the photogrammetric method to assess body condition of an odontocete, the shortfinned pilot whale Globicephala macrorhynchus
- Author
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L. Schwarz, J. St. Leger, K. Aldrich, S. R. Noren, K. Chase, and K. McMahon-Van Oss
- Subjects
Fishery ,Disturbance (geology) ,Photogrammetry ,Ecology ,biology ,biology.animal ,Blubber ,Globicephala macrorhynchus ,Aquatic Science ,biology.organism_classification ,Pilot whale ,Ecology, Evolution, Behavior and Systematics ,Body condition - Published
- 2019
43. Oxytocin administration prevents cellular aging caused by social isolation
- Author
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Jennie R. Stevenson, Elyse K. McMahon, Winnie Boner, and Mark F. Haussmann
- Subjects
Aging ,medicine.medical_specialty ,Anhedonia ,Endocrinology, Diabetes and Metabolism ,Oxytocin ,Stress ,medicine.disease_cause ,Article ,Social support ,03 medical and health sciences ,0302 clinical medicine ,Endocrinology ,Internal medicine ,medicine ,Animals ,Social isolation ,Social Behavior ,Microtus ,Glucocorticoids ,Cellular Senescence ,Telomere Shortening ,Biological Psychiatry ,biology ,Arvicolinae ,Depression ,Endocrine and Autonomic Systems ,business.industry ,Telomere ,biology.organism_classification ,030227 psychiatry ,Prairie vole ,Oxidative Stress ,Psychiatry and Mental health ,Telomeres ,Social Isolation ,Female ,medicine.symptom ,Corticosterone ,business ,Stress, Psychological ,hormones, hormone substitutes, and hormone antagonists ,030217 neurology & neurosurgery ,Glucocorticoid ,Oxidative stress ,medicine.drug - Abstract
Chronic stressors, such as chronic isolation in social mammals, can elevate glucocorticoids, which can affect cellular mechanisms of aging, including increased levels of oxidative stress and shortened telomere lengths. Recent work in the selectively social prairie vole (Microtus ochrogaster) suggests that oxytocin and social support may mitigate some of the negative consequences of social isolation, possibly by reducing glucocorticoid levels. We investigated the influences of isolation, social support, and daily oxytocin injections in female prairie voles. Glucocorticoid levels, oxidative damage, telomere length, and anhedonia, a behavioral index of depression, were measured throughout the study. We found that six weeks of chronic isolation led to increased glucocorticoid levels, oxidative damage, telomere degradation and anhedonia. However, daily oxytocin injections in isolated voles prevented these negative consequences. These findings demonstrate that chronic social isolation in female prairie voles is a potent stressor that results in depression-like behavior and accelerated cellular aging. Importantly, oxytocin can completely prevent the negative consequences of social isolation.
- Published
- 2019
44. Virtual Reality Exercise Games for High School Students With Intellectual and Developmental Disabilities
- Author
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Kristen Tutt, Don D. McMahon, Brenda L. Barrio, Amanda K. McMahon, and Jonah B. Firestone
- Subjects
education ,05 social sciences ,Fetal alcohol syndrome ,Physical activity ,050301 education ,Virtual reality ,medicine.disease ,Obesity ,Physical activity level ,Computer Science Applications ,Education ,Developmental psychology ,03 medical and health sciences ,0302 clinical medicine ,Intervention (counseling) ,Intellectual disability ,medicine ,Autism ,Psychology ,0503 education ,030217 neurology & neurosurgery - Abstract
Individuals with intellectual and developmental disabilities (IDD) are at greater risk of health-related issues due to obesity and lack of physical activity. This study examined using virtual reality (VR) exergaming to increase the physical activity of high school students with IDD. Four students participated in this multiple probe across participants design. Data were collected on each student’s total amount of time engaged in exercise and heart rate. Results indicate that all students increased the duration and intensity of their physical activity when using the VR exercise gaming (exergaming) intervention. The VR exergaming intervention increased the duration and intensity of the students’ exercise sessions. Results are discussed in terms of applying VR and other emerging technologies to support the exercise health needs of the individual in the study.
- Published
- 2019
45. Knowledge of Physical Activity Guidelines and Its Association with Physical Activity and Physical Function in Older Adults
- Author
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Siobhan K McMahon, Corjena Cheung, Kristine Mc Talley, Jean F. Wyman, and Erica N. Schorr
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Gerontology ,business.industry ,Physical fitness ,Physical activity ,Medicine ,Guideline ,Geriatrics and Gerontology ,Physical function ,Association (psychology) ,business ,Health Professions (miscellaneous) ,Physical activity level - Abstract
Older Minnesota State Fair attendees age ≥55 years were recruited to determine if physical activity (PA) guideline knowledge was associated with self-reported PA behavior and physical function. Sur...
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- 2019
46. Impact of chemotherapy for HIV-1 related lymphoma on residual viremia and cellular HIV-1 DNA in patients on suppressive antiretroviral therapy.
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Anthony R Cillo, Supriya Krishnan, Deborah K McMahon, Ronald T Mitsuyasu, Michael F Para, and John W Mellors
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Medicine ,Science - Abstract
The first cure of HIV-1 infection was achieved through complex, multimodal therapy including myeloablative chemotherapy, total body irradiation, anti-thymocyte globulin, and allogeneic stem cell transplantation with a CCR5 delta32 homozygous donor. The contributions of each component of this therapy to HIV-1 eradication are unclear. To assess the impact of cytotoxic chemotherapy alone on HIV-1 persistence, we longitudinally evaluated low-level plasma viremia and HIV-1 DNA in PBMC from patients in the ACTG A5001/ALLRT cohort on suppressive antiretroviral therapy (ART) who underwent chemotherapy for HIV-1 related lymphoma without interrupting ART. Plasma HIV-1 RNA, total HIV-1 DNA and 2-LTR circles (2-LTRs) in PBMC were measured using sensitive qPCR assays. In the 9 patients who received moderately intensive chemotherapy for HIV-1 related lymphoma with uninterrupted ART, low-level plasma HIV-1 RNA did not change significantly with chemotherapy: median HIV-1 RNA was 1 copy/mL (interquartile range: 1.0 to 20) pre-chemotherapy versus 4 copies/mL (interquartile range: 1.0 to 7.0) post-chemotherapy. HIV-1 DNA levels also did not change significantly, with median pre-chemotherapy HIV-1 DNA of 355 copies/106 CD4+ cells versus 228 copies/106 CD4+ cells post-chemotherapy. 2-LTRs were detectable in 2 of 9 patients pre-chemotherapy and in 3 of 9 patients post-chemotherapy. In summary, moderately intensive chemotherapy for HIV-1 related lymphoma in the context of continuous ART did not have a prolonged impact on HIV-1 persistence. Clinical trials registration unique identifier: NCT00001137.
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- 2014
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47. Understanding Women's Cardiovascular Health Using MyStrengths+MyHealth: A Patient-Generated Data Visualization Study of Strengths, Challenges, and Needs Differences
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Karen A. Monsen, David S. Pieczkiewicz, Siobhan K McMahon, Ruth Lindquist, Robin R. Austin, and Michelle A. Mathiason
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030504 nursing ,Standardization ,business.industry ,Data Visualization ,Perspective (graphical) ,Visualization ,Test (assessment) ,03 medical and health sciences ,0302 clinical medicine ,Data visualization ,Omaha System ,Surveys and Questionnaires ,Health care ,Humans ,Women's Health ,Observational study ,Female ,030212 general & internal medicine ,0305 other medical science ,business ,Psychology ,Delivery of Health Care ,General Nursing ,Clinical psychology ,Retrospective Studies - Abstract
Purpose The purpose of this data visualization study was to identify patterns in patient-generated health data (PGHD) of women with and without Circulation signs or symptoms. Specific aims were to (a) visualize and interpret relationships among strengths, challenges, and needs of women with and without Circulation signs or symptoms; (b) generate hypotheses based on these patterns; and (c) test hypotheses generated in Aim 2. Design The design of this visualization study was retrospective, observational, case controlled, and exploratory. Methods We used existing de-identified PGHD from a mobile health application, MyStrengths+MyHealth (N = 383). From the data, women identified with Circulation signs or symptoms (n = 80) were matched to an equal number of women without Circulation signs or symptoms. Data were analyzed using data visualization techniques and descriptive and inferential statistics. Findings Based on the patterns, we generated nine hypotheses, of which four were supported. Visualization and interpretation of relationships revealed that women without Circulation signs or symptoms compared to women with Circulation signs or symptoms had more strengths, challenges, and needs-specifically, strengths in connecting; challenges in emotions, vision, and health care; and needs related to info and guidance. Conclusions This study suggests that visualization of whole-person health including strengths, challenges, and needs enabled detection and testing of new health patterns. Some findings were unexpected, and perspectives of the patient would not have been detected without PGHD, which should be valued and sought. Such data may support improved clinical interactions as well as policies for standardization of PGHD as sharable and comparable data across clinical and community settings. Clinical relevance Standardization of patient-generated whole-person health data enabled clinically relevant research that included the patients' perspective.
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- 2021
48. Barriers to implementation of STRIDE, a national study to prevent fall-related injuries
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Nancy K. Latham, Albert L. Siu, David B. Reuben, Priscilla K. Gazarian, Fred C. Ko, Jennifer M. Reckrey, and Siobhan K McMahon
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Adult ,Male ,Health Personnel ,Psychological intervention ,Poison control ,Suicide prevention ,Article ,03 medical and health sciences ,0302 clinical medicine ,Nursing ,Stakeholder Participation ,Intervention (counseling) ,Injury prevention ,Medicine ,Humans ,030212 general & internal medicine ,Qualitative Research ,Aged ,030505 public health ,Primary Health Care ,business.industry ,Health Plan Implementation ,Human factors and ergonomics ,Middle Aged ,Patient Outcome Assessment ,Accidental Falls ,Female ,Implementation research ,Geriatrics and Gerontology ,0305 other medical science ,business ,Fall prevention ,Program Evaluation - Abstract
Author(s): Reckrey, Jennifer M; Gazarian, Priscilla; Reuben, David B; Latham, Nancy K; McMahon, Siobhan K; Siu, Albert L; Ko, Fred C | Abstract: Background/objectivesEvaluations of complex models of care for older adults may benefit from simultaneous assessment of intervention implementation. The STRIDE (Strategies To Reduce Injuries and Develop confidence in Elders) pragmatic trial evaluated the effectiveness of a multifactorial intervention to reduce serious fall injuries in older adults. We conducted multi-level stakeholder interviews to identify barriers to STRIDE intervention implementation and understand efforts taken to mitigate these barriers.DesignQualitative interviews with key informants.SettingTen clinical trial sites affiliated with practices that provided primary care for persons at increased risk for fall injuries.ParticipantsSpecially trained registered nurses working as Falls Care Managers (FCMs) who delivered the intervention (nn=n13 individual interviews), Research Staff who supervised trial implementation locally (nn=n10 group interviews, 23 included individuals), and members of Central Project Management and the National Patient Stakeholder Council who oversaw national implementation (nn=n2 group interviews, six included individuals).MeasurementsA semi-structured interview guide derived from the consolidated framework for implementation research (CFIR).ResultsWe identified eight key barriers to STRIDE intervention implementation. FCMs navigated complex relationships with patients and families while working with Research Staff to implement the intervention in primary care practices with limited clinical space, variable provider buy-in, and significant primary care practice staff and provider turnover. The costs of the intervention to individual patients and medical practices amplified these barriers. Efforts to mitigate these barriers varied depending on the needs and opportunities of each primary care setting.ConclusionThe many barriers to implementation and the variability in how stakeholders addressed these locally may have affected the overall STRIDE intervention's effectiveness. Future pragmatic trials should incorporate simultaneous implementation aims to better understand how research interventions translate into clinical care that improves the lives of older adults.
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- 2021
49. Effect of a Multifactorial Fall Injury Prevention Intervention on Patient Well-Being: The STRIDE Study
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Eleni A. Skokos, Jocelyn Wiggins, Maureen Fagan, Susan L. Greenspan, Pamela W. Duncan, Patricia C. Dykes, Neil B. Alexander, Can Meng, Fred C. Ko, Lillian Min, Jeremy N. Rich, Todd M. Manini, Lori Goehring, Heather G. Allore, Siobhan K McMahon, Thomas M. Gill, Joanne M. McGloin, Jeanne A. Teresi, David B. Reuben, Peter Peduzzi, Albert W. Wu, Shehzad Basaria, Rosaly Correa-de-Araujo, Denise Esserman, Chad Boult, Nancy K. Latham, Neil M. Resnick, Erich J. Greene, Elena Volpi, Thomas G. Travison, Katy L. B. Araujo, Martha B. Carnie, Carri Casteel, Michael E. Miller, Jay Magaziner, Charles Lu, Stephen C. Waring, Robert B. Wallace, Thomas W. Storer, Peter Charpentier, David A. Ganz, Jerry H. Gurwitz, Catherine Hanson, Priscilla K. Gazarian, Shalender Bhasin, and James Dziura
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Male ,Aging ,Poison control ,030204 cardiovascular system & hematology ,Anxiety ,Suicide prevention ,Medical and Health Sciences ,0302 clinical medicine ,7.1 Individual care needs ,well-being ,80 and over ,Medicine ,030212 general & internal medicine ,Depression (differential diagnoses) ,Cancer ,Aged, 80 and over ,Depression ,Rehabilitation ,Injuries and accidents ,Mental Health ,Female ,Independent Living ,Patient Safety ,medicine.symptom ,fall injury prevention ,Patients ,Clinical Trials and Supportive Activities ,STRIDE ,Risk Assessment ,Nurse's Role ,Article ,03 medical and health sciences ,Clinical Research ,Intervention (counseling) ,Injury prevention ,Humans ,Patient Reported Outcome Measures ,Aged ,Primary Health Care ,business.industry ,Prevention ,Confidence interval ,Brain Disorders ,pragmatic trials ,Geriatrics ,older persons ,Injury (total) Accidents/Adverse Effects ,Accidental Falls ,Management of diseases and conditions ,Geriatrics and Gerontology ,business ,Demography - Abstract
Author(s): Gill, Thomas M; Bhasin, Shalender; Reuben, David B; Latham, Nancy K; Araujo, Katy; Ganz, David A; Boult, Chad; Wu, Albert W; Magaziner, Jay; Alexander, Neil; Wallace, Robert B; Miller, Michael E; Travison, Thomas G; Greenspan, Susan L; Gurwitz, Jerry H; Rich, Jeremy; Volpi, Elena; Waring, Stephen C; Manini, Todd M; Min, Lillian C; Teresi, Jeanne; Dykes, Patricia C; McMahon, Siobhan; McGloin, Joanne M; Skokos, Eleni A; Charpentier, Peter; Basaria, Shehzad; Duncan, Pamela W; Storer, Thomas W; Gazarian, Priscilla; Allore, Heather G; Dziura, James; Esserman, Denise; Carnie, Martha B; Hanson, Catherine; Ko, Fred; Resnick, Neil M; Wiggins, Jocelyn; Lu, Charles; Meng, Can; Goehring, Lori; Fagan, Maureen; Correa-de-Araujo, Rosaly; Casteel, Carri; Peduzzi, Peter; Greene, Erich J | Abstract: Background/objectivesIn the Strategies to Reduce Injuries and Develop Confidence in Elders (STRIDE) study, a multifactorial intervention was associated with a nonsignificant 8% reduction in time to first serious fall injury but a significant 10% reduction in time to first self-reported fall injury relative to enhanced usual care. The effect of the intervention on other outcomes important to patients has not yet been reported. We aimed to evaluate the effect of the intervention on patient well-being including concern about falling, anxiety, depression, physical function, and disability.DesignPragmatic cluster-randomized trial of 5,451 community-living persons at high risk for serious fall injuries.SettingA total of 86 primary care practices within 10 U.S. healthcare systems.ParticipantsA random subsample of 743 persons aged 75 and older.MeasurementsThe well-being measures, assessed at baseline, 12 months, and 24 months, included a modified version of the Fall Efficacy Scale, Patient-Reported Outcomes Measurement Information System (PROMIS) anxiety and depression scales, and Late-Life Function and Disability Instrument.ResultsParticipants in the intervention (n = 384) and control groups (n = 359) were comparable in age: mean (standard deviation) of 81.9 (4.7) versus 81.8 (5.0) years. Mean scores were similar between groups at 12 and 24 months for concern about falling, physical function, and disability, whereas the intervention group's mean scores on anxiety and depression were .7 points lower (i.e., better) at 12 months and .6 to .8 points lower at 24 months. For each of these outcomes, differences between the groups' adjusted least square mean changes from baseline to 12 and 24 months, respectively, were quantitatively small. The overall difference in means between groups over 2 years was statistically significant only for depression, favoring the intervention: -1.19 (99% confidence interval, -2.36 to -.02), with 3.5 points representing a minimally important difference.ConclusionsSTRIDE's multifactorial intervention to reduce fall injuries was not associated with clinically meaningful improvements in patient well-being.
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- 2021
50. Community-based intervention effects on older adults' physical activity and falls: Protocol and rationale for a randomized optimization trial (Ready Steady3.0)
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Siobhan K McMahon, Weihua Guan, Alexander J. Rothman, Jean F. Wyman, and Beth A. Lewis
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Gerontology ,medicine.medical_specialty ,Psychological intervention ,Interpersonal communication ,Fitness Trackers ,Article ,03 medical and health sciences ,0302 clinical medicine ,Intervention (counseling) ,medicine ,Humans ,Pharmacology (medical) ,030212 general & internal medicine ,Exercise ,Aged ,Randomized Controlled Trials as Topic ,030505 public health ,business.industry ,Public health ,Behavior change ,General Medicine ,Test (assessment) ,Exercise Therapy ,Quality of Life ,Accidental Falls ,0305 other medical science ,business ,Intrapersonal communication ,Fall prevention - Abstract
The Ready Steady 3.0 trial is designed to test the main and interactive effects of two behavior change intervention components, within an 8-week physical activity intervention, on older adults' physical activity (PA). Each component is comprised of behavior change strategies that emphasize two different evidence-based ways to motivate older adults to be active: interpersonal and intrapersonal. 308 adults ≥70 years old will be randomized to 1 of 4 conditions in a 2 × 2 full factorial trial in which the two factors represent the receipt (No, Yes) of interpersonal or intrapersonal behavior change strategies. Participants will also receive two core intervention components: the Otago Exercise Program adapted for small groups and a PA monitor. Interventions across conditions will be delivered during 8 weekly, small group, meetings in community settings. The primary outcome of PA, measured objectively, and secondary outcomes of falls and the quality of life will be assessed at baseline and post-intervention: 1 week, 6 months, and 12 months. Findings will enable the identification of behavior change content that contributes to physical activity outcomes within a physical activity intervention for older adults. This study is one of the first to use the MOST framework to guide the development of a community-based physical activity intervention for older adults to reduce the public health problems of low PA and falls. The results will enable the optimization of behavior change content within a PA intervention for older adults and, in turn, other PA interventions for older adults.
- Published
- 2020
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