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Xiaowei Zhao, Feiping Nie, Sen Wang, Jun Guo, Pengfei Xu, Xiaojiang Chen
In recent years, unsupervised two-dimensional (2D) dimensionality reduction methods for unlabeled large-scale data have made progress. However, performance of these degrades when the learning of similarity matrix is at the beginning of the dimensionality reduction process. A similarity matrix is used to reveal the underlying geometry structure of data in unsupervised dimensionality reduction methods. Because of noise data, it is difficult to learn the optimal similarity matrix. In this letter, we propose a new dimensionality reduction model for 2D image matrices: unsupervised 2D dimensionality reduction with adaptive structure learning (DRASL)...
May 2017: Neural Computation
Bulat A Ziganshin, Mitra Sadigh, Liliya M Yausheva, Anna P Ziganshina, Arseniy A Pichugin, Alexey S Sozinov, Nail Kh Amirov, Asghar Rastegar, Ayrat U Ziganshin, Majid Sadigh
BACKGROUND: The partnership between Yale University (USA) and Kazan State Medical University (KSMU, Russia) was established in 1996 and transitioned to Western Connecticut Health Network (WCHN)/University of Vermont Robert Larner, M.D. College of Medicine (USA) in 2012 with the goal of modernizing medical education at KSMU primarily through introduction of the American medical education structure, role modeling, and educational capacity building. It was centered on the formation of a select group of Russian junior faculty members familiar with American medical education who would then initiate a gradual change in medical education at KSMU...
January 25, 2017: BMC Medical Education
Bo Xu, Nicolas Bettinger, Changdong Guan, Björn Redfors, Yuejin Yang, Bao Li, Yaling Han, Xi Su, Zuyi Yuan, Philippe Généreux
OBJECTIVES: We sought to study whether the level of completeness of revascularization as measured by the SYNTAX revascularization index (SRI) independently predicts adverse ischemic events after percutaneous coronary intervention (PCI) with second-generation drug-eluting stents (DES). BACKGROUND: The SRI quantifies the proportion of revascularized myocardium. It has been shown to independently predict adverse ischemic events after PCI with first-generation DES. METHODS: Among 1,900 patients enrolled in a registry to evaluate safety and effectiveness of everolimus drug-eluting stent (SEEDS) for coronary revascularization, the SRI was calculated and available for 1,851 patients...
March 2017: Catheterization and Cardiovascular Interventions
Jakob D Jensen, Robert N Yale, Melinda Krakow, Kevin K John, Andy J King
Narratives are common in health campaigns and interventions, with many depicting individuals battling a particular illness or disease. Past research has focused primarily on the form and effects of survivor stories, but considerably less attention has been devoted to stories in which 1 or more of the central characters passes away. The goal of the current study was to compare the relative persuasive impact of survivor and death narratives in influencing skin prevention behaviors and to test narrative mediators that might explicate underlying mechanisms of effect...
January 2017: Journal of Health Communication
Ronald M Goldenberg, Lori D Berard, Alice Y Y Cheng, Jeremy D Gilbert, Subodh Verma, Vincent C Woo, Jean-François Yale
PURPOSE: Sodium-glucose cotransporter 2 (SGLT2) inhibitors are the newest class of antihyperglycemic agents available on the market. Regulator warnings and concerns regarding the risk of developing diabetic ketoacidosis (DKA), however, have dampened enthusiasm for the class despite the combined glycemic, blood pressure, and occasional weight benefits of SGLT2 inhibitors. With the goal of improving patient safety, a cross-Canada expert panel and writing group were convened to review the evidence to-date on reported SGLT2 inhibitor-related DKA incidents and to offer recommendations for preventing and recognizing patients with SGLT2 inhibitor-associated DKA...
December 2016: Clinical Therapeutics
Christie M Ballantyne, Sukrut Shah, Uma Kher, John A Hunter, Geraldine G Gill, Michael D Cressman, Tanya B Ashraf, Amy O Johnson-Levonas, Yale B Mitchel
To assess the effects of anacetrapib added to statin ± other lipid-modifying therapies in patients with hypercholesterolemia and not at their low-density lipoprotein cholesterol (LDL-C) goal (as per National Cholesterol Education Program Adult Treatment Panel III [NCEP ATP III] guidelines) and in those with low high-density lipoprotein cholesterol (HDL-C). Patients on a stable dose of moderate/high-intensity statin ± other lipid-modifying therapies with LDL-C ≥70, ≥100, ≥130, or ≥160 mg/dl for very high, high, moderate, and low coronary heart disease risk, respectively, or at LDL-C goal with HDL-C ≤40 mg/dl, were randomized 1:1:1, stratified by background therapy use, to anacetrapib 100 mg (n = 153), anacetrapib 25 mg (n = 152), or placebo (n = 154) for 24 weeks, followed by a 12-week off-drug reversal phase...
February 1, 2017: American Journal of Cardiology
Justyna Mojsa-Kaja, Krystyna Golonka, Magda Gawłowska
OBJECTIVES: Obsessive-compulsive disorder (OCD) is an anxiety-spectrum disorder that affects 1-2% of the adult population. People with OCD are more likely to report impaired social and occupational functioning. Although effective treatments of the OCD exist, many sufferers from this disorder are continuously misdiagnosed. Therefore, improving the assessment of the OCD remains an important area of scientific research. The main goal of the study is the initial verification of psychometric properties in the Polish version of the Obsessive-Compulsive Inventory-Revised (OCI-R) in a college student sample...
November 18, 2016: International Journal of Occupational Medicine and Environmental Health
Kerin B Adelson, Salimah Velji, Kavita Patel, Basit Chaudhry, Catherine Lyons, Rogerio Lilenbaum
Most cancer centers are ill-equipped to pursue value-based payment (VBP) because of limited information on their population's cost of care. Herein, we outline the stepwise approach used by Smilow Cancer Hospital at Yale-New Haven in our pursuit of better value care. First, we addressed institutional barriers. A move toward value required demonstration to Yale-New Haven Health System leadership that OCM would improve patient care, fund new infrastructure, and provide the opportunity to gain experience with VBP without a major threat to the financial stability of the health system...
October 2016: Journal of Oncology Practice
Michael C Crair, Carol A Mason
Although much is known about the regenerative capacity of retinal ganglion cells, very significant barriers remain in our ability to restore visual function following traumatic injury or disease-induced degeneration. Here we summarize our current understanding of the factors regulating axon guidance and target engagement in regenerating axons, and review the state of the field of neural regeneration, focusing on the visual system and highlighting studies using other model systems that can inform analysis of visual system regeneration...
October 19, 2016: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
Sivraj Muralikrishnan, Christos Hatzis, Andrea Katz, Alessandro Santin, Peter E Schwartz, Maysa M Abu-Khalaf
OBJECTIVE: Ovarian cancer is the most lethal cancer involving the female pelvic reproductive system. Its incidence increases with age and with an aging population, its prevalence should also increase. The goal of our retrospective study is to report our experience in treating women over 65 years of age, with a diagnosis of primary ovarian cancer, using standard intravenous chemotherapy. METHODS: The medical records of 78 patients>65 years of age diagnosed with primary ovarian cancer at the Yale Cancer Center between 1996-2006 were retrospectively reviewed and included in our analysis...
August 2016: Gynecology & Obstetrics: Current Research
Jiang Du, Yaling Li, Shulan Lv, Qing Wang, Chao Sun, Xin Dong, Ming He, Qurat Ulain, Yongxing Yuan, Xiaoqian Tuo, Nasra Batchu, Qing Song, Qiling Li
PURPOSE: Endometrial carcinoma is the most common gynecologic malignancy in both developed and some developing countries. Unlike cervical cancer, for which there is routine screening, only patients symptomatic for endometrial carcinoma typically seek medical help for its diagnosis and treatment. Dilatation and curettage (D&C) has been the standard procedure for evaluating suspicious endometrial lesions. The discomfort and injury caused by the D&C procedure, however, restrict its use as a screening method for early diagnosis of endometrial lesions...
December 2016: Journal of Cancer Research and Clinical Oncology
Jennifer S Hanberg, Veena Rao, Jozine M Ter Maaten, Olga Laur, Meredith A Brisco, F Perry Wilson, Justin L Grodin, Mahlet Assefa, J Samuel Broughton, Noah J Planavsky, Tariq Ahmad, Lavanya Bellumkonda, W H Wilson Tang, Chirag R Parikh, Jeffrey M Testani
BACKGROUND: Recent epidemiological studies have implicated chloride, rather than sodium, as the driver of poor survival previously attributed to hyponatremia in heart failure. Accumulating basic science evidence has identified chloride as a critical factor in renal salt sensing. Our goal was to probe the physiology bridging this basic and epidemiological literature. METHODS AND RESULTS: Two heart failure cohorts were included: (1) observational: patients receiving loop diuretics at the Yale Transitional Care Center (N=162) and (2) interventional pilot: stable outpatients receiving ≥80 mg furosemide equivalents were studied before and after 3 days of 115 mmol/d supplemental lysine chloride (N=10)...
August 2016: Circulation. Heart Failure
Eliot A Brinton, Joseph Triscari, Philippe Brudi, Erluo Chen, Amy O Johnson-Levonas, Christine McCrary Sisk, Rae Ann Ruck, Alexandra A MacLean, Darbie Maccubbin, Yale B Mitchel
BACKGROUND: LDL-C, non-HDL-C and ApoB levels are inter-correlated and all predict risk of atherosclerotic cardiovascular disease (ASCVD) in patients with type 2 diabetes mellitus (T2DM) and/or high TG. These levels are lowered by extended-release niacin (ERN), and changes in the ratios of these levels may affect ASCVD risk. This analysis examined the effects of extended-release niacin/laropiprant (ERN/LRPT) on the relationships between apoB:LDL-C and apoB:non-HDL-C in patients with T2DM...
July 12, 2016: Lipids in Health and Disease
Elijah Paintsil, Ryan Martin, Ariel Goldenthal, Shreya Bhandari, Warren Andiman, Musie Ghebremichael
BACKGROUND: The clinical consequences of the magnitude and the duration of detectable viremia in HIV-infected children have not been well characterized. We examined the predictors and immunologic consequences over time of frequent episodes of detectable viremia in HIV-infected children followed at Yale-New Haven Hospital. METHODS: We analyzed the CD4+ T-cell and HIV viral load over a 19-year period (1996 to 2013) of 104 HIV-infected children enrolled in the Yale Prospective Longitudinal Pediatric HIV Cohort...
April 2016: Journal of AIDS & Clinical Research
Hannah Dzimitrowicz, Michael Berger, Craig Vargo, Annette Hood, Osama Abdelghany, Akshara Singareeka Raghavendra, Debu Tripathy, Vicente Valero, Christos Hatzis, Lajos Pusztai, Rashmi Murthy
PURPOSE: Ado-trastuzumab emtansine (T-DM1) is currently approved for treatment in patients with human epidermal growth factor receptor 2 (HER2)-positive, metastatic breast cancer (MBC) who previously received trastuzumab and a taxane. However, there are no data on the activity of T-DM1 in patients who received prior pertuzumab, which is now included as standard first-line therapy. The goal of this study was to assess the efficacy of T-DM1 in routine clinical practice in a contemporary patient population that received both prior trastuzumab and pertuzumab...
June 13, 2016: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
Dorottya B Noble, Simon G J Mochrie, Corey S O'Hern, Thomas D Pollard, Lynne Regan
In 2008, we established the Integrated Graduate Program in Physical and Engineering Biology (IGPPEB) at Yale University. Our goal was to create a comprehensive graduate program to train a new generation of scientists who possess a sophisticated understanding of biology and who are capable of applying physical and quantitative methodologies to solve biological problems. Here we describe the framework of the training program, report on its effectiveness, and also share the insights we gained during its development and implementation...
November 12, 2016: Biochemistry and Molecular Biology Education
Colleen E Clancy, Gary An, William R Cannon, Yaling Liu, Elebeoba E May, Peter Ortoleva, Aleksander S Popel, James P Sluka, Jing Su, Paolo Vicini, Xiaobo Zhou, David M Eckmann
A wide range of length and time scales are relevant to pharmacology, especially in drug development, drug design and drug delivery. Therefore, multiscale computational modeling and simulation methods and paradigms that advance the linkage of phenomena occurring at these multiple scales have become increasingly important. Multiscale approaches present in silico opportunities to advance laboratory research to bedside clinical applications in pharmaceuticals research. This is achievable through the capability of modeling to reveal phenomena occurring across multiple spatial and temporal scales, which are not otherwise readily accessible to experimentation...
September 2016: Annals of Biomedical Engineering
Peter A Ryg, Janet P Hafler, Susan H Forster
OBJECTIVE: Resident physicians have reported spending upward of 25% of their time teaching fellow residents and medical students. Until relatively recently, there have not been formal requirements in residency programs to learn teaching skills. The first goal of this study was to develop a novel residents-as-teachers training program to educate Ophthalmology residents on facilitating group learning and emphasizing critical-thinking skills. The second goal was to educate residents on how to teach clinical reasoning skills...
March 2016: Journal of Surgical Education
JianSe Zhang, ZhiBin Wang, KeZhi Lin, YaLing Yu, LiNa Zhao, TingGang Chu, LiZhi Wu, Ali Alkhawaji, MiaoZhong Li, YingKuan Shao, Ting Li, XinFa Lou, ShiXin Chen, MaoLin Tang, Jin Mei
Nearly 50 million patients in China live with end-stage renal disease (ESRD), and only about 4000 patients may receive kidney transplantation. The purpose of this study was to investigate regeneration of renal vessels post whole decellularized kidneys transplantation in vivo. We decellularized kidneys of donor rats by perfusing a detergent through the abdominal aorta, yielding feasible extracellular matrix, confirmed for acellularity before transplantation. Based on the concept of using the body as a bioreactor, we orthotopically transplanted the kidney and ureter scaffolds in recipient rats, and found the regeneration of vessels including artery and vein in the renal sinus following a spontaneous recanalization...
December 1, 2015: Oncotarget
Paulina Bustos, Jorge Orias, Katia Sáez, Marcela Maldonado, Liliana Cuadra, Sylvia Asenjo
BACKGROUND: Yale University's Bright Bodies Program consists on a lifestyle intervention, in areas such as nutrition and exercise, while focusing on behavior modification and family support. AIM: To evaluate the impact of the Program in Chilean children and adolescents with obesity who participated in the Program during 8 months. MATERIAL AND METHODS: The weight management Program was carried out during 8 months and consisted in weekly sessions directed by dietitians or psychologists and exercise sessions twice per week in charge of physical education teachers...
September 2015: Revista Médica de Chile
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