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Michael Porter

Denise M Hynes, Michael Fischer, Linda A Schiffer, Rani Gallardo, Ifeanyi Beverly Chukwudozie, Anna Porter, Michael Berbaum, Jennifer Earheart, Marian L Fitzgibbon
INTRODUCTION: Using a quasi-experimental design, we implemented the Patient-Centered Medical Home for Kidney Disease (PCMH-KD), a comprehensive, multidisciplinary care team to improve quality of life and healthcare coordination for adult chronic hemodialysis (CHD) patients. This paper highlights our experience in the first two years of the study.We focus on the process dimensions of Reach, Adoption, and Implementation within the context of the RE-AIM framework. MATERIALS AND METHODS: We established a new PCMH-KD model at two outpatient dialysis centers...
October 18, 2016: Contemporary Clinical Trials
Aditya H Gaur, Hilda Kizito, Wasana Prasitsueubsai, Natella Rakhmanina, Mohammed Rassool, Rana Chakraborty, Jagmohan Batra, Pope Kosalaraksa, Wicharn Luesomboon, Danielle Porter, Yongwu Shao, Michael Myers, Lillian Ting, Devi SenGupta, Erin Quirk, Martin S Rhee
BACKGROUND: The prodrug tenofovir alafenamide is associated with improved renal and bone safety compared with tenofovir disoproxil fumarate. We aimed to assess safety, pharmacokinetics, and efficacy of this single-tablet, fixed-dose combination of elvitegravir, cobicistat, emtricitabine, and tenofovir alafenamide in HIV-infected, treatment-naive adolescents. METHODS: We did a 48 week, single-arm, open-label trial in treatment-naive adolescents with HIV from ten hospital clinics in South Africa, Thailand, Uganda, and the USA...
October 17, 2016: Lancet HIV
Tyler K Nygaard, Scott D Kobayashi, Brett Freedman, Adeline R Porter, Jovanka M Voyich, Michael Otto, Olaf Schneewind, Frank R DeLeo
Staphylococcus aureus is a leading cause of human infections worldwide. The pathogen produces numerous molecules that can interfere with recognition and binding by host innate immune cells, an initial step required for the ingestion and subsequent destruction of microbes by phagocytes. To better understand the interaction of this pathogen with human immune cells, we compared the association of S. aureus and S. epidermidis with leukocytes in human blood. We found that a significantly greater proportion of B cells associated with S...
2016: PloS One
James R Johnson, Gregg Davis, Connie Clabots, Brian D Johnston, Stephen Porter, Chitrita DebRoy, William Pomputius, Peter T Ender, Michael Cooperstock, Billie Savvas Slater, Ritu Banerjee, Sybille Miller, Dagmara Kisiela, Evgeni V Sokurenko, Maliha Aziz, Lance B Price
Background.  Within-household sharing of strains from the resistance-associated H30R1 and H30Rx subclones of Escherichia coli sequence type 131 (ST131) has been inferred based on conventional typing data, but it has been assessed minimally using whole genome sequence (WGS) analysis. Methods.  Thirty-three clinical and fecal isolates of ST131-H30R1 and ST131-H30Rx, from 20 humans and pets in 6 households, underwent WGS analysis for comparison with 52 published ST131 genomes. Phylogenetic relationships were inferred using a bootstrapped maximum likelihood tree based on core genome sequence polymorphisms...
September 2016: Open Forum Infectious Diseases
Adam M Speen, Hye-Young H Kim, Rebecca N Bauer, Megan Meyer, Kymberly M Gowdy, Michael B Fessler, Kelly E Duncan, Wei Liu, Ned A Porter, Ilona Jaspers
When inhaled, ozone (O3) interacts with cholesterols of airway epithelial cell membranes or the lung lining fluid, generating chemically reactive oxysterols. The mechanism by which O3-derived oxysterols affect molecular function is unknown. Our data show that in vitro exposure of human bronchial epithelial cells to O3 results in the formation of oxysterols, epoxycholesterol-α and β (α-EpCh, β-EpCh) and Secosterol A and B (Seco A, SecoB), in cell lysates and apical washes. Similarly, bronchoalveolar lavage fluid obtained from human volunteers exposed to O3 contained elevated levels of these oxysterol species...
October 4, 2016: Journal of Biological Chemistry
Peter E Clark, Philippe E Spiess, Neeraj Agarwal, Rick Bangs, Stephen A Boorjian, Mark K Buyyounouski, Jason A Efstathiou, Thomas W Flaig, Terence Friedlander, Richard E Greenberg, Khurshid A Guru, Noah Hahn, Harry W Herr, Christopher Hoimes, Brant A Inman, A Karim Kader, Adam S Kibel, Timothy M Kuzel, Subodh M Lele, Joshua J Meeks, Jeff Michalski, Jeffrey S Montgomery, Lance C Pagliaro, Sumanta K Pal, Anthony Patterson, Daniel Petrylak, Elizabeth R Plimack, Kamal S Pohar, Michael P Porter, Wade J Sexton, Arlene O Siefker-Radtke, Guru Sonpavde, Jonathan Tward, Geoffrey Wile, Mary A Dwyer, Courtney Smith
These NCCN Guidelines Insights discuss the major recent updates to the NCCN Guidelines for Bladder Cancer based on the review of the evidence in conjunction with the expert opinion of the panel. Recent updates include (1) refining the recommendation of intravesical bacillus Calmette-Guérin, (2) strengthening the recommendations for perioperative systemic chemotherapy, and (3) incorporating immunotherapy into second-line therapy for locally advanced or metastatic disease. These NCCN Guidelines Insights further discuss factors that affect integration of these recommendations into clinical practice...
October 2016: Journal of the National Comprehensive Cancer Network: JNCCN
Sam Famenini, Elizabeth A Rigali, Henry M Olivera-Perez, Johnny Dang, Michael To Chang, Ramesh Halder, Rammohan V Rao, Matteo Pellegrini, Verna Porter, Dale Bredesen, Milan Fiala
Monocyte/macrophages of patients with mild cognitive impairment (MCI) and Alzheimer disease (AD) are defective in phagocytosis and degradation amyloid-β 1-42 (Aβ1-42), but are improved by ω-3 fatty acids (ω-3). The hypothesis of this study was that active Aβ1-42 phagocytosis by macrophages prevents brain amyloidosis and thus maintains cognition. We studied the effects of self-supplementation with a drink with ω-3, antioxidants, and resveratrol on Mini-Mental State Examination (MMSE) scores, macrophage M1M2 phenotype (the ratio of inflammatory CD54+CD80 and proresolution markers CD163+CD206), and Aβ1-42 phagocytosis in patients initially diagnosed as having MCI or subjective cognitive impairment (SCI)...
September 27, 2016: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
Alison Marshall, Antonio Celentano, Nicola Cirillo, Michele D Mignogna, Michael McCullough, Stephen Porter
Chemokine (C-X-C motif) ligand (CXCL)9 and CXCL10 are dysregulated in oral inflammatory conditions, and it is not known if these chemokines target microorganisms that form oral biofilm. The aim of this study was to investigate the antimicrobial activity of CXCL9 and CXCL10 on oral microflora and their expression profiles in oral keratinocytes following exposure to inflammatory and infectious stimuli. Streptococcus sanguinis was used as a model and Escherichia coli as a positive control. The antimicrobial effect of CXCL9/CXCL10 was tested using a radial diffusion assay...
October 2016: European Journal of Oral Sciences
Kyla D Joubert, Charles D Mabry, Kyle J Kalkwarf, Richard D Betzold, Horace J Spencer, Kara M Spinks, Austin Porter, Saleema Karim, Ronald D Robertson, Michael J Sutherland, Robert T Maxson
Major trunk trauma is common and costly, but comparisons of costs between trauma centers (TCs) are rare. Understanding cost is essential to improve quality, manage trauma service lines, and to facilitate institutional commitment for trauma. We have used results of a statewide trauma financial survey of Levels I to IV TC to develop a useful grouping method for costs and clinical characteristics of major trunk trauma. The trauma financial survey collected billing and clinical data on 75 per cent of the state trauma registry patients for fiscal year 2012...
September 2016: American Surgeon
Stephanie A Kraft, Melissa Constantine, David Magnus, Kathryn M Porter, Sandra Soo-Jin Lee, Michael Green, Nancy E Kass, Benjamin S Wilfond, Mildred K Cho
BACKGROUND/AIMS: Participant understanding is a key element of informed consent for enrollment in research. However, participants often do not understand the nature, risks, benefits, or design of the studies in which they take part. Research on medical practices, which studies standard interventions rather than new treatments, has the potential to be especially confusing to participants because it is embedded within usual clinical care. Our objective in this randomized study was to compare the ability of a range of multimedia informational aids to improve participant understanding in the context of research on medical practices...
September 13, 2016: Clinical Trials: Journal of the Society for Clinical Trials
Michael E Porter, Thomas H Lee
No abstract text is available yet for this article.
September 13, 2016: JAMA: the Journal of the American Medical Association
Nikhil G Thaker, Tariq N Ali, Michael E Porter, Thomas W Feeley, Robert S Kaplan, Steven J Frank
PURPOSE: The transformation from volume to value will require communication of outcomes and costs of therapies; however, outcomes are usually nonstandardized, and cost of therapy differs among stakeholders. We developed a standardized value framework by using radar charts to visualize and communicate a wide range of patient outcomes and cost for three forms of prostate cancer treatment. MATERIALS AND METHODS: We retrospectively reviewed data from men with low-risk prostate cancer who were treated with low-dose rate brachytherapy (LDR-BT), proton beam therapy, or robotic-assisted prostatectomy...
September 2016: Journal of Oncology Practice
Marco Ruella, David M Barrett, Saad S Kenderian, Olga Shestova, Ted J Hofmann, Jessica Perazzelli, Michael Klichinsky, Vania Aikawa, Farzana Nazimuddin, Miroslaw Kozlowski, John Scholler, Simon F Lacey, Jan J Melenhorst, Jennifer J D Morrissette, David A Christian, Christopher A Hunter, Michael Kalos, David L Porter, Carl H June, Stephan A Grupp, Saar Gill
Potent CD19-directed immunotherapies, such as chimeric antigen receptor T cells (CART) and blinatumomab, have drastically changed the outcome of patients with relapsed/refractory B cell acute lymphoblastic leukemia (B-ALL). However, CD19-negative relapses have emerged as a major problem that is observed in approximately 30% of treated patients. Developing approaches to preventing and treating antigen-loss escapes would therefore represent a vertical advance in the field. Here, we found that in primary patient samples, the IL-3 receptor α chain CD123 was highly expressed on leukemia-initiating cells and CD19-negative blasts in bulk B-ALL at baseline and at relapse after CART19 administration...
October 3, 2016: Journal of Clinical Investigation
David W Melton, Alexander C Roberts, Hanzhou Wang, Zaheer Sarwar, Michael D Wetzel, Jason T Wells, Laurel Porter, Michael T Berton, Linda M McManus, Paula K Shireman
Skeletal muscle regeneration requires coordination between dynamic cellular populations and tissue microenvironments. Macrophages, recruited via CCR2, are essential for regeneration; however, the contribution of macrophages and the role of CCR2 on nonhematopoietic cells has not been defined. In addition, aging and sex interactions in regeneration and sarcopenia are unclear. Muscle regeneration was measured in young (3-6 mo), middle (11-15 mo), old (24-32 mo) male and female CCR2(-/-) mice. Whereas age-related muscle atrophy/sarcopenia was present, regenerated myofiber cross-sectional area (CSA) in CCR2(-/-) mice was comparably impaired across all ages and sexes, with increased adipocyte area compared with wild-type (WT) mice...
August 16, 2016: Journal of Leukocyte Biology
Linda C Chu, Kristin K Porter, Celia Pamela Corona-Villalobos, Mehmet Akif Gülsün, Steven M Shea, Michael Markl, Theodore P Abraham, David A Bluemke, Ihab R Kamel, Stefan L Zimmerman
OBJECTIVE: This study aimed to validate 4-dimensional phase contrast (4D PC) cine magnetic resonance imaging (MRI) as a means of evaluating left ventricular outflow tract (LVOT) obstruction in patients with hypertrophic cardiomyopathy (HCM). METHODS: In this institutional review board-approved prospective study, 23 patients with suspected HCM from October 2012 to September 2013 underwent 4D PC MRI. Postprocessed 4D PC pathline cine data were reviewed by 2 blinded reviewers to determine presence or absence of LVOT obstruction...
August 16, 2016: Journal of Computer Assisted Tomography
Mary Pat Knadler, Tri-Hung Nguyen, Kristina Campanale, Michael J De Veer, John M Beals, Shun Li, Ryan Hansen, Angela Siesky, M Dodson Michael, Christopher J H Porter
PURPOSE: Determine the pharmacokinetics of insulin peglispro (BIL) in 5/6-nephrectomized rats and study the absorption in lymph duct cannulated (LDC) sheep. METHODS: BIL is insulin lispro modified with 20-kDa linear PEG at lysine B28 increasing the hydrodynamic size to 4-fold larger than insulin lispro. Pharmacokinetics of BIL and insulin lispro after IV administration were compared in 5/6-nephrectomized and sham rats. BIL was administered IV or SC into the interdigital space of the hind leg, and peripheral lymph and/or serum samples were collected from both LDC and non-LDC sheep to determine pharmacokinetics and absorption route of BIL...
August 15, 2016: Pharmaceutical Research
Jennifer D Sisler, Ruibin Li, Walter McKinney, Robert R Mercer, Zhaoxia Ji, Tian Xia, Xiang Wang, Justine Shaffer, Marlene Orandle, Amy L Mihalchik, Lori Battelli, Bean T Chen, Michael Wolfarth, Michael E Andrew, Diane Schwegler-Berry, Dale W Porter, Vincent Castranova, Andre Nel, Yong Qian
BACKGROUND: Although classified as metal oxides, cobalt monoxide (CoO) and lanthanum oxide (La2O3) nanoparticles, as representative transition and rare earth oxides, exhibit distinct material properties that may result in different hazardous potential in the lung. The current study was undertaken to compare the pulmonary effects of aerosolized whole body inhalation of these nanoparticles in mice. RESULTS: Mice were exposed to filtered air (control) and 10 or 30 mg/m(3) of each particle type for 4 days and then examined at 1 h, 1, 7 and 56 days post-exposure...
2016: Particle and Fibre Toxicology
Michael E Porter, Robert S Kaplan
The United States stands at a crossroads in how to pay for health care. Fee for service, the dominant payment model in the U.S. and many other countries, is now widely recognized as perhaps the single biggest obstacle to improving health care delivery. A battle is currently raging, outside of the public eye, between the advocates of two radically different payment approaches: capitation and bundled payments. The stakes are high, and the outcome will define the shape of the health care system for many years to come, for better or for worse...
July 2016: Harvard Business Review
Gunjan D Manocha, Angela M Floden, Keiko Rausch, Joshua A Kulas, Brett A McGregor, Lalida Rojanathammanee, Kelley R Puig, Kendra L Puig, Sanjib Karki, Michael R Nichols, Diane C Darland, James E Porter, Colin K Combs
UNLABELLED: Prior work suggests that amyloid precursor protein (APP) can function as a proinflammatory receptor on immune cells, such as monocytes and microglia. Therefore, we hypothesized that APP serves this function in microglia during Alzheimer's disease. Although fibrillar amyloid β (Aβ)-stimulated cytokine secretion from both wild-type and APP knock-out (mAPP(-/-)) microglial cultures, oligomeric Aβ was unable to stimulate increased secretion from mAPP(-/-) cells. This was consistent with an ability of oligomeric Aβ to bind APP...
August 10, 2016: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
Taraka R Donti, Gerarda Cappuccio, Leroy Hubert, Juanita Neira, Paldeep S Atwal, Marcus J Miller, Aaron L Cardon, V Reid Sutton, Brenda E Porter, Fiona M Baumer, Michael F Wangler, Qin Sun, Lisa T Emrick, Sarah H Elsea
Adenylosuccinate lyase (ADSL) deficiency is a rare autosomal recessive neurometabolic disorder that presents with a broad-spectrum of neurological and physiological symptoms. The ADSL gene produces an enzyme with binary molecular roles in de novo purine synthesis and purine nucleotide recycling. The biochemical phenotype of ADSL deficiency, accumulation of SAICAr and succinyladenosine (S-Ado) in biofluids of affected individuals, serves as the traditional target for diagnosis with targeted quantitative urine purine analysis employed as the predominate method of detection...
September 2016: Molecular Genetics and Metabolism Reports
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