Saul Blecker

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The crystal structure of the MJ0796 ATP-binding cassette, a member of the o228/LolD transporter family, has been determined at 2.7-A resolution with MgADP bound at its active site. Comparing this structure with that of the ATP-bound form of the HisP ATP-binding cassette (Hung, L. W., Wang, I. X., Nikaido, K., Liu, P. Q., Ames, G. F., and Kim, S. H. (1998)(More)
BACKGROUND Results of trials and registry studies have shown lower long-term mortality after coronary-artery bypass grafting (CABG) than after percutaneous coronary intervention (PCI) among patients with multivessel disease. These previous analyses did not evaluate PCI with second-generation drug-eluting stents. METHODS In an observational registry study,(More)
BACKGROUND Cardiac stress testing, particularly with imaging, has been the focus of debates about rising health care costs, inappropriate use, and patient safety in the context of radiation exposure. OBJECTIVE To determine whether U.S. trends in cardiac stress test use may be attributable to population shifts in demographics, risk factors, and provider(More)
BACKGROUND Exercise testing with echocardiography or myocardial perfusion imaging is widely used to risk-stratify patients with suspected coronary artery disease. However, reports of diagnostic performance rarely adjust for referral bias, and this practice may adversely influence patient care. Therefore, we evaluated the potential impact of referral bias on(More)
BACKGROUND Urgent, unplanned hospital readmissions are increasingly being used to gauge the quality of care. We reviewed urgent readmissions to determine which were potentially avoidable and compared rates of all-cause and avoidable readmissions. METHODS In a multicentre, prospective cohort study, we reviewed all urgent readmissions that occurred within(More)
BACKGROUND Albuminuria has been associated with cardiovascular risk, but the relationship of high-normal albuminuria to subsequent heart failure has not been well established. STUDY DESIGN Prospective observational study, the Atherosclerosis Risk in Communities (ARIC) Study. SETTING & PARTICIPANTS 10,975 individuals free from heart failure were followed(More)
RESEARCH DESIGN AND METHODSdFracture-related hospitalization was defined using International Classification of Diseases, 9th revision, codes (733.1–733.19, 733.93– 733.98, or 800–829). We calculated the incidence rate of fracture-related hospitalization by age and used Cox proportional hazards models to investigate the association of diabetes with risk of(More)
BACKGROUND Reduced low forced expiratory volume in 1 second (FEV1) is reportedly associated with an increased risk of atrial fibrillation (AF). Extant reports do not provide separate estimates for never smokers or for blacks, who incongruously have lower AF incidence than whites. METHODS AND RESULTS We examined 15 004 middle-aged blacks and whites(More)
BACKGROUND In patients with diabetes mellitus and multivessel disease, coronary artery bypass graft surgery and percutaneous coronary intervention are treatment options. However, there is paucity of data comparing coronary artery bypass graft surgery against newer generation stents. METHODS AND RESULTS Patients included in the New York State registries(More)
OBJECTIVES The study sought to assess the quality of care for heart failure patients who are hospitalized for all causes. BACKGROUND Performance measures for heart failure target patients with a principal diagnosis of heart failure. However, patients with heart failure are commonly hospitalized for other causes and may benefit from treatments such as(More)