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MacEwan JP, Gill TM, Johnson K, Doctor J, Sullivan J, Shim J, Goldman DP. Measuring Sarcopenia Severity in Older Adults and the Value of Effective Interventions. J Nutr Health Aging 2018; 22:1253-1258. [PMID: 30498834 PMCID: PMC6302764 DOI: 10.1007/s12603-018-1104-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2018] [Accepted: 04/30/2018] [Indexed: 11/25/2022]
Abstract
OBJECTIVES Little is known about the severity and long-term health and economic consequences of sarcopenia. We developed a sarcopenia index to measure severity in older Americans and estimated the long-term societal benefits generated by effective interventions to mitigate severity. DESIGN Using a micro-simulation model, we quantified the potential societal value generated in the US in 2010-2040 by reductions in sarcopenia severity in older adults. All analyses were performed in Stata and SAS. SETTING AND PARTICIPANTS Secondary data from the National Health and Nutrition Examination Survey (NHANES) (N = 1634) and Health and Retirement Study (HRS) (N = 952) were used to develop a sarcopenia severity index in older adults. MEASUREMENTS Multi-trait multi-method and factor analyses were used to validate and calibrate the sarcopenia severity index, which was modeled as a function of gait speed, walking without an assistive device, and moderate physical activity. RESULTS In representative elderly populations, reducing sarcopenia severity by improving gait speed by 0.1 m/s in those with gait speed under 0.8 m/s generated a cumulative benefit of $65B by 2040 (2015 dollars). Improving walking ability in those with walking difficulty generated cumulative social benefit of $787B by 2040. CONCLUSIONS Reducing sarcopenia severity would generate significant health and economic benefits to society-almost $800B in the most optimistic scenarios.
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Van den Bergh PYK, Sznajer Y, Van Parys V, van Tol W, Wevers RA, Lefeber DJ, Xu L, Lek M, MacArthur DG, Johnson K, Phillips L, Töpf A, Straub V. Corrigendum to "A homozygous DPM3 mutation in a patient with alpha-dystroglycan-related limb girdle muscular dystrophy" [Neuromuscular disorders 27/11 (2017) 1043-1046]. Neuromuscul Disord 2017; 28:101. [PMID: 29246662 DOI: 10.1016/j.nmd.2017.11.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Johnson K, Green PK, Ioannou GN. Implications of HCV RNA level at week 4 of direct antiviral treatments for hepatitis C. J Viral Hepat 2017; 24:966-975. [PMID: 28585416 PMCID: PMC5839805 DOI: 10.1111/jvh.12731] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/02/2017] [Accepted: 05/09/2017] [Indexed: 12/22/2022]
Abstract
We aimed to determine whether the HCV viral load after four weeks of treatment (W4VL) with direct-acting antiviral agents (DAAs) predicts sustained virologic response (SVR) in a real-world clinical setting. We identified 21 095 patients who initiated DAA-based antiviral treatment in the national Veterans Affairs (VA) healthcare system from 01/01/2014 to 06/30/2015. Week 4 viral load was categorized as undetectable, detectable below quantification (DBQ), detectable above quantification (DAQ) with viral load ≤42 IU/mL and DAQ with viral load >42 IU/mL. Week 4 viral load was undetectable in 36.1%, detectable below quantification in 45.6%, DAQ ≤42 in 9.3%, DAQ >42 in 9.1%. Detectable above quantification was much more common and undetectable week 4 viral load much less common when tested with the Abbott RealTime HCV assay vs the Roche COBAS AmpliPrep/COBAS TaqMan Version 2 assay. Compared to patients with undetectable week 4 viral load (SVR=93.5%), those with detectable below quantification (SVR=91.8%, adjusted odds ratio [AOR] 0.79, P-value=.001), DAQ ≤42 (SVR=90.0%, AOR 0.63, P-value<.001) and DAQ >42 (SVR=86.2%, AOR 0.52, P-value<.001) had progressively lower likelihood of achieving SVR after adjusting for baseline characteristics and treatment duration. Among genotype 1-infected patients who were potentially eligible for 8-week sofosbuvir/ledipasvir monotherapy, we did not find evidence that treatment for 12 weeks instead of 8 weeks was associated with higher SVR, even among those with detectable above quantification. In summary, DBQ and DAQ W4VL are very common in real-world practice, contrary to what was reported in clinical trials, and strongly predict reduced SVR across genotypes and clinically relevant patient subgroups. Whether and how week 4 viral load results should influence treatment decisions requires further study.
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Durmus H, Scalco R, Gardiner A, Manole A, Schapira A, Morrow J, Houlden H, Holton J, Johnson K, Töpf A, Phillips L, Deymeer F, Parman Y, Straub V, Quinlivan R, Oflazer-Serdaoglu P. Anoctamin 5 muscular dystrophy mimicking metabolic myopathy. Neuromuscul Disord 2017. [DOI: 10.1016/j.nmd.2017.06.188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Johnson K, Töpf A, Bertoli M, Phillips L, De Ridder W, Baets J, De Jonghe P, Deconinck T, Rakocevic Stojanovic V, Perić S, Durmus H, Jamal-Omidi S, Nafissi S, Łusakowska A, Mongini T, Lek M, Valkanas E, Mullen T, Xu L, MacArthur D, Straub V. Detection of TRIM32 variants associated with LGMD2H in a large cohort of patients with unexplained limb-girdle weakness. Neuromuscul Disord 2017. [DOI: 10.1016/j.nmd.2017.06.182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Bender D, Townsend J, Vantrease W, Marshall A, Henry R, Heffington S, Johnson K. The Effects of Beetroot Juice Administration on Physical Performance During Anaerobic Exercise in Young Active Males. J Acad Nutr Diet 2017. [DOI: 10.1016/j.jand.2017.08.094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Fried D, DuBose R, Johnson K, Cogdell M, Gersh J, Kilburn J. Dosimetry for Organs at Risk With and Without Use of Perirectal Hydrogel Spacer in Prostate Cancer Patients Treated With SBRT. Int J Radiat Oncol Biol Phys 2017. [DOI: 10.1016/j.ijrobp.2017.06.1161] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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108
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Kulcinski GL, Santarius JF, Johnson K, Megahed A, Bonomo RL. Identification of Landmines and IEDs Using Compact Fusion Neutron Sources on Drones. FUSION SCIENCE AND TECHNOLOGY 2017. [DOI: 10.1080/15361055.2017.1333862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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109
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Van den Bergh PYK, Sznajer Y, Van Parys V, van Tol W, Wevers RA, Lefeber DJ, Xu L, Lek M, MacArthur DG, Johnson K, Phillips L, Töpf A, Straub V. A homozygous DPM3 mutation in a patient with alpha-dystroglycan-related limb girdle muscular dystrophy. Neuromuscul Disord 2017; 27:1043-1046. [PMID: 28803818 DOI: 10.1016/j.nmd.2017.07.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2017] [Revised: 06/27/2017] [Accepted: 07/12/2017] [Indexed: 10/19/2022]
Abstract
Defects of O-linked glycosylation of alpha-dystroglycan cause a wide spectrum of muscular dystrophies ranging from severe congenital muscular dystrophy associated with abnormal brain and eye development to mild limb girdle muscular dystrophy. We report a female patient who developed isolated pelvic girdle muscle weakness and wasting, which became symptomatic at age 42. Exome sequencing uncovered a homozygous c.131T > G (p.Leu44Pro) substitution in DPM3, encoding dolichol-P-mannose (DPM) synthase subunit 3, leading to a 50% reduction of enzymatic activity. Decreased availability of DPM as an essential donor substrate for protein O-mannosyltransferase (POMT) 1 and 2 explains defective skeletal muscle alpha-dystroglycan O-glycosylation. Our findings show that DPM3 mutations may lead to an isolated and mild limb girdle muscular dystrophy phenotype without cardiomyopathy.
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Savundranayagam M, Basque S, Roberts A, Orange J, Johnson K. DO FAMILY MEMBERS’ MOST IMPORTANT CONCERNS ABOUT CAREGIVING VARY ACROSS THE CAREGIVING CAREER? Innov Aging 2017. [DOI: 10.1093/geroni/igx004.1167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Chandler C, Johnson K, Boisen M, Berger J, Taylor S, Huang M. IV and IV/IP chemotherapy as adjuvant treatment in patients with ovarian cancer leads to similar rates of progression free and overall survival after neoadjuvant chemotherapy. Gynecol Oncol 2017. [DOI: 10.1016/j.ygyno.2017.03.361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Ansite J, Balamurugan AN, Barbaro B, Battle J, Brandhorst D, Cano J, Chen X, Deng S, Feddersen D, Friberg A, Gilmore T, Goldstein JS, Holbrook E, Khan A, Kin T, Lei J, Linetsky E, Liu C, Luo X, McElvaney K, Min Z, Moreno J, O'Gorman D, Papas KK, Putz G, Ricordi C, Szot G, Templeton T, Wang L, Wilhelm JJ, Willits J, Wilson T, Zhang X, Avila J, Begley B, Cano J, Carpentier S, Holbrook E, Hutchinson J, Larsen CP, Moreno J, Sears M, Turgeon NA, Webster D, Deng S, Lei J, Markmann JF, Bridges ND, Czarniecki CW, Goldstein JS, Putz G, Templeton T, Wilson T, Eggerman TL, Al-Saden P, Battle J, Chen X, Hecyk A, Kissler H, Luo X, Molitch M, Monson N, Stuart E, Wallia A, Wang L, Wang S, Zhang X, Bigam D, Campbell P, Dinyari P, Kin T, Kneteman N, Lyon J, Malcolm A, O'Gorman D, Onderka C, Owen R, Pawlick R, Richer B, Rosichuk S, Sarman D, Schroeder A, Senior PA, Shapiro AMJ, Toth L, Toth V, Zhai W, Johnson K, McElroy J, Posselt AM, Ramos M, Rojas T, Stock PG, Szot G, Barbaro B, Martellotto J, Oberholzer J, Qi M, Wang Y, Bayman L, Chaloner K, Clarke W, Dillon JS, Diltz C, Doelle GC, Ecklund D, Feddersen D, Foster E, Hunsicker LG, Jasperson C, Lafontant DE, McElvaney K, Neill-Hudson T, Nollen D, Qidwai J, Riss H, Schwieger T, Willits J, Yankey J, Alejandro R, Corrales AC, Faradji R, Froud T, Garcia AA, Herrada E, Ichii H, Inverardi L, Kenyon N, Khan A, Linetsky E, Montelongo J, Peixoto E, Peterson K, Ricordi C, Szust J, Wang X, Abdulla MH, Ansite J, Balamurugan AN, Bellin MD, Brandenburg M, Gilmore T, Harmon JV, Hering BJ, Kandaswamy R, Loganathan G, Mueller K, Papas KK, Pedersen J, Wilhelm JJ, Witson J, Dalton-Bakes C, Fu H, Kamoun M, Kearns J, Li Y, Liu C, Luning-Prak E, Luo Y, Markmann E, Min Z, Naji A, Palanjian M, Rickels M, Shlansky-Goldberg R, Vivek K, Ziaie AS, Fernandez L, Kaufman DB, Zitur L, Brandhorst D, Friberg A, Korsgren O. Purified Human Pancreatic Islets, CIT Culture Media with Lisofylline or Exenatide. CELLR4-- REPAIR, REPLACEMENT, REGENERATION, & REPROGRAMMING 2017; 5:e2377. [PMID: 30613755 PMCID: PMC6319648] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Grants] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
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Tapley B, Michaels CJ, Johnson K, Field D. A global problem requires a global multifaceted solution. Anim Conserv 2017. [DOI: 10.1111/acv.12349] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Johnson K, Bertoli M, Phillips L, Blain A, Ensini M, Bushby K, Lochmüller H, Töpf A, Lek M, Xu L, Mullen T, Valkanas E, MacArthur D, Straub V. The MYO-SEQ project: application of exome sequencing technologies to 1000 patients affected by limb-girdle weakness of unknown origin. Neuromuscul Disord 2017. [DOI: 10.1016/s0960-8966(17)30337-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Rattay T, Johnson K, Symonds R, Seibold P, Chang-Claude J, Barnett G, Coles C, Wenz F, West C, Talbot C. Development and validation of a predictive risk model for acute skin toxicity in patients undergoing breast radiotherapy. Breast 2017. [DOI: 10.1016/s0960-9776(17)30247-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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116
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Johnson K, Töpf A, Bertoli M, Phillips L, De Ridder W, De Jonghe P, Baets J, Deconinck T, Stojanovic V, Peric S, Durmus H, Omidi S, Nafissi S, Lusakowska A, Mongini T, Lek M, MacArthur D, Straub V. Detection of TRIM32 variants associated with LGMD2H in a large cohort of patients with unexplained limb-girdle weakness. Neuromuscul Disord 2017. [DOI: 10.1016/s0960-8966(17)30338-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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117
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De Filippo M, Pesce A, Barile A, Borgia D, Zappia M, Romano A, Pogliacomi F, Verdano M, Pellegrini A, Johnson K. Imaging of postoperative shoulder instability. Musculoskelet Surg 2017; 101:15-22. [PMID: 28168636 DOI: 10.1007/s12306-017-0461-4] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2016] [Accepted: 01/15/2017] [Indexed: 01/02/2023]
Abstract
Postoperative imaging in shoulder instability is still a challenge for radiologists due to various postsurgical anatomical findings that could be considered pathologic in treated shoulder. For this reason is very important a deep knowledge about surgical procedures, anatomical changes after surgery and the appropriate diagnostic imaging modalities to work up the symptomatic postoperative shoulder. Postoperative imaging options include use conventional radiography, magnetic resonance imaging (MRI), MRI arthrography, computed tomography (CT) and CT arthrography. The purpose of our review is to explain the different surgical procedures and to describe postoperative changes detected with radiological imaging.
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DeCou J, Johnson K. An introduction to predictive modelling of drug concentration in anaesthesia monitors. Anaesthesia 2017; 72 Suppl 1:58-69. [DOI: 10.1111/anae.13741] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/07/2016] [Indexed: 11/28/2022]
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Patel H, Swinson S, Johnson K. Improving national standards of child protection skeletal surveys: the value of College guidance. Clin Radiol 2016; 72:202-206. [PMID: 27771046 DOI: 10.1016/j.crad.2016.07.019] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2016] [Revised: 07/07/2016] [Accepted: 07/20/2016] [Indexed: 11/28/2022]
Abstract
AIM To re-assess the content and quality of skeletal surveys performed in the investigation of non-accidental injury following the publication of nationally agreed guidelines produced jointly by the Royal College of Radiologists and the Royal College of Paediatrics and Child Health in 2008. MATERIALS AND METHODS One hundred consecutive skeletal surveys performed in England, which were sent to a tertiary paediatric hospital for a second opinion, were reviewed for their content and quality. The number and type of view was assessed with reference to the 21 recommended views as set out in the College guidance. The quality of each view was assessed and given a score up to a maximum of 10. RESULTS A total of 2,294 radiographic views were acquired, with an average of 22.9 per survey (range 12-21). Fifty-one of the surveys contained all 21 recommended views (previously 15%). The average quality score per view was 9.7/10 (97%), previously 9.7/11 (88%). The commonest cause of reduced quality was the presence of an artefact on the image. CONCLUSION There has been an improvement in the content of skeletal surveys performed in England, which in part may be due to the publication of the national joint Royal College guidance; however, there remain areas for continued development in order to improve practice further.
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Kita Y, Aranami Y, Aranami Y, Nomura Y, Johnson K, Wakabayashi T, Fukunishi I. Improving Public Awareness of Organ Transplantation in Japan. Prog Transplant 2016; 10:56-9. [PMID: 10941328 DOI: 10.1177/152692480001000110] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
The goals of the Japanese chapter of the Transplant Recipients International Organization are to act as a mediator in the provision of mutual aid to transplant recipients, candidates, and their families and to provide education in both the public and professional arenas to promote organ transplantation in Japan. Since 1991, members of the Japanese chapter of the Transplant Recipients International Organization have acted as volunteer facilitators for more than 150 transplant candidates and recipients. The organization's activities have included fund-raising to cover the costs of transplantation, preparing an original donor card for distribution, and petitioning members of the Diet (the Japanese legislative body) 14 times, including speaking at public hearings twice and submitting a petition requesting early passage of the organ transplant bill. The Japanese Diet finally passed an organ transplant bill in June 1997. The activities of the Japanese chapter of the Transplant Recipients International Organization have contributed to the promotion of organ transplantation in Japan and to understanding and support for transplantation within the Japanese community as a whole.
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Kita Y, Aranami Y, Aranami Y, Nomura Y, Johnson K, Wakabayashi T, Fukunishi I. Japanese Organ Transplant Law: A Historical Perspective. Prog Transplant 2016; 10:106-8. [PMID: 10933763 DOI: 10.1177/152692480001000206] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Although organ transplantation following brain death has progressed in the West, it has lagged far behind in Japan, following the first such case in 1968. As effective immunosuppressants made transplantation a better option, Japanese patients increasingly sought treatment overseas. Japanese physician groups studied issues related to transplantation but did not succeed in making brain-dead donor transplants available to patients, and the matter was referred to the government. However, transplant medicine was still marked by controversy, and as political pressure was applied the controversy deepened, splintering public opinion. At the same time, transplant groups continued working to establish structures to allow transplantation to proceed. Public awareness and knowledge of brain death grew, and acceptance widened. Eventually, legislation was passed in June 1997 that allowed organ donations from some brain-dead donors. The law is restrictive, and such organ transplants in Japan are still limited.
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Friedman J, Ber R, Ridner S, Dietrich M, Johnson K. PrimeMD, a Real-Time Symptom Management Smartphone Application for Head and Neck Cancer Patients Undergoing Radiation Therapy. Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.1942] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Johnson K, Bertoli M, Phillips L, Töpf A, Lek M, Xu L, MacArthur D, Straub V. The MYO-SEQ project: Application of exome sequencing technologies to 1000 patients affected by limb-girdle weakness of unknown origin. Neuromuscul Disord 2016. [DOI: 10.1016/j.nmd.2016.06.273] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Ortez C, Jou C, Campistol J, Nascimento A, Jimenez-Mallebrera C, Topf A, Johnson K, Straub V, Codina A, Corbera J, Colomer J. Exercise intolerance and myalgia: First clinical sign of a primary alpha-sarcoglycanopathy. Neuromuscul Disord 2016. [DOI: 10.1016/j.nmd.2016.06.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Van den Bergh P, Sznajer Y, Van Parijs V, van Tol W, Wevers R, Lefeber D, Xu L, Lek M, MacArthur D, Xu L, Lek M, MacArthur D, Johnson K, Phillips L, Topf A, Straub V. A homozygous DPM3 mutation in a patient with alpha-dystroglycan-related limb girdle muscular dystrophy. Neuromuscul Disord 2016. [DOI: 10.1016/j.nmd.2016.06.289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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