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Johanna L. Johnson
Duke University
EndocrinologyCardiologyPhysical therapyDiabetes mellitusMedicine
50Publications
16H-index
1,836Citations
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#1Ranee Chatterjee (Duke University)H-Index: 17
#2Clemontina A. Davenport (Duke University)H-Index: 4
Last. David Edelman (Duke University)H-Index: 24
view all 11 authors...
INTRODUCTION Low potassium intake can affect cardiovascular disease (CVD) risk and cardiometabolic risk factors. OBJECTIVE We hypothesize that potassium chloride (KCl) supplementation can improve cardiovascular risk metabolomic profile. METHODS In this secondary analysis of a pilot randomized clinical trial (RCT) of 26 participants with prediabetes randomized to KCl or placebo, we performed targeted mass-spectrometry-based metabolomic profiling on baseline and 12-week (end-of-study) plasma sampl...
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#1Ranee Chatterjee (Duke University)H-Index: 17
#2Clemontina A. Davenport (Duke University)H-Index: 4
Last. David Edelman (Duke University)H-Index: 24
view all 11 authors...
Source
#1Rong Jiang (Duke University)H-Index: 8
#2Kim M. Huffman (Durham University)H-Index: 24
Last. William E. Kraus (Duke University)H-Index: 81
view all 10 authors...
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#1Ambarish Pandey (UTSW: University of Texas Southwestern Medical Center)H-Index: 34
#2Johanna L. Johnson (Duke University)H-Index: 16
Last. William E. Kraus (Duke University)H-Index: 81
view all 7 authors...
Background Substantial heterogeneity exists in the cardiorespiratory fitness (CRF) change in response to exercise training, and its long‐term prognostic implication is not well understood. We evalu...
1 CitationsSource
#1Leslie H. Willis (Duke University)H-Index: 10
#2Cris A. Slentz (Duke University)H-Index: 36
Last. William E. Kraus (Duke University)H-Index: 81
view all 7 authors...
ABSTRACT Ranolazine reduces angina frequency and increases exercise capacity. We hypothesized that exercise training with ranolazine would allow subjects to train at greater intensities, resulting in greater improvements in exercise capacity, physical activity and health related quality of life (HRQOL). In a pilot study, subjects with chronic stable angina pectoris were randomized to ranolazine (n=13) or placebo (n=16). Following a two-wk drug titration period, subjects participated in a twelve-...
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#1Johanna L. Johnson (Duke University)H-Index: 16
#2Cris A. Slentz (Duke University)H-Index: 36
Last. William E. Kraus (Duke University)H-Index: 81
view all 5 authors...
Background: STRRIDE (Studies Targeting Risk Reduction Interventions through Defined Exercise) was an eight-month exercise study conducted from 1998-2003. Subjects were randomized to control or one of three exercise groups differing in intensity and amount. To determine if there were legacy effects, we invited 161 individuals who completed the intervention phase to return for a 10-year Reunion study. Methods: Subjects completed medical history and physical activity questionnaires. Height, body we...
7 CitationsSource
#1Leanna M. RossH-Index: 1
Last. William E. KrausH-Index: 81
view all 6 authors...
Introduction: The Studies Targeting Risk Reduction Interventions through Defined Exercise (STRRIDE) Reunion assessed changes in cardiometabolic health 10 years after study participation. We investi...
#1Ranee ChatterjeeH-Index: 17
#2Cris A. Slentz (Duke University)H-Index: 36
Last. David EdelmanH-Index: 24
view all 9 authors...
: Background: Low potassium has been identified both as a risk factor for type 2 diabetes and as a mediator of the racial disparity in diabetes risk. Low potassium could be a potentially modifiable risk factor, particularly for African Americans.Objective: We sought to determine the effects of potassium chloride (KCl) supplements, at a commonly prescribed dose, on measures of potassium and glucose metabolism.Design: Among African-American adults with prediabetes, we conducted a double-blinded pi...
3 CitationsSource
#1Leslie H. WillisH-Index: 10
#2Cris A. SlentzH-Index: 36
Last. William E. KrausH-Index: 81
view all 7 authors...
Introduction: An estimated seven million American adults live with coronary artery disease and chronic angina. Many continue to experience angina despite revascularization and antianginal medicatio...
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