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Racial/ethnic disparities persist in patients' access to living donor kidney transplantation (LDKT). This study assessed the impact of having available potential living donors (PLDs) on candidates' receipt of a kidney transplant (KT) and LDKT at two KT programs. Using data from our clinical trial of waitlisted candidates (January 1, 2014-December 31, 2019), we evaluated Hispanic and Non-Hispanic White (NHW) KT candidates' number of PLDs. Multivariable logistic regression assessed the impact of PLDs on transplantation (KT vs. no KT; for KT recipients, LDKT vs. deceased donor KT). A total of 847 candidates were included, identifying as Hispanic (45.8%) or NHW (54.2%). For Site A, both Hispanic (adjusted OR = 2.26 [95% CI 1.13-4.53]) and NHW (OR = 2.42 [1.10-5.33]) candidates with PLDs completing the questionnaire were more likely to receive a KT. For Site B, candidates with PLDs were not significantly more likely to receive KT. Among KT recipients at both sites, Hispanic (Site A: OR = 21.22 [2.44-184.88]; Site B: OR = 25.54 [7.52-101.54]), and NHW (Site A: OR = 37.70 [6.59-215.67]; Site B: OR = 15.18 [5.64-40.85]) recipients with PLD(s) were significantly more likely to receive a LDKT. Our findings suggest that PLDs increased candidates' likelihood of KT receipt, particularly LDKT. Transplant programs should help candidates identify PLDs early in transplant evaluation.

Distortion product otoacoustic emissions (DPOAEs) offer an outcome measure to consider for clinical detection and monitoring outer hair cell dysfunction as a result of noise exposure. This investigation detailed DPOAE characteristics and behavioral hearing thresholds up to 20 kHz to identify promising metrics for early detection of cochlear dysfunction. In a sample of normal-hearing individuals with and without self-reported noise exposure, the DPOAE and hearing threshold measures, as assessed by two questions, were examined. The effects on various auditory measures in individuals aged 10–65 years old with clinically normal/near-normal hearing through 4 kHz were evaluated. Individuals reporting occupational noise exposures ( n = 84) and recreational noise exposures ( n = 46) were compared to age-matched nonexposed individuals. The hearing thresholds and DPOAE level, fine structure, and component characteristics for the full frequency bandwidth were examined. The data suggest that the DPOAE levels measured using a range of stimulus levels hold clinical utility while fine structure characteristics offer limited use. Under carefully calibrated conditions, the extension to frequencies beyond 8 kHz in combination with various stimulus levels holds clinical utility. Moreover, this work supports the potential utility of the distortion product place component level for revealing differences in cochlear function due to self-reported, casual noise exposure that are not observable in behavioral hearing thresholds.

Outpatient physical therapy may be an opportune time to promote aerobic physical activity after knee replacement, however, it is unknown if it is feasible to integrate a physical activity intervention within standard physical therapy.The purpose of this study was to examine the feasibility and acceptability of a physical activity intervention delivered within outpatient physical therapy for adults after knee replacement.As part of a cluster randomized trial, adults with knee replacement starting outpatient physical therapy were recruited across four physical therapy sites. Sites were randomized and physical therapists delivered either an Enhanced Physical Activity Intervention or a Control condition. The Enhanced Physical Activity Intervention consisted of standard post-operative physical therapy plus goal setting, problem-solving, and use of motivational interviewing techniques to promote 150 minutes/week of aerobic moderate intensity physical activity. The Control condition received standard post-operative physical therapy only. Feasibility and acceptability were determined based on recruitment and retention rates at 12 weeks after surgery. Outcomes including objectively measured physical activity, pain, and self-reported function were examined at the baseline post-operative visit and 12 weeks later.Thirty-three percent of candidates screened were randomized (n=45) and retention at 12 weeks after surgery was 91% (no difference by condition). Moderate-intensity activity increased, pain decreased, and self-reported function improved, but there were no statistically significant group differences between baseline and 12 weeks.Implementing a physical activity intervention within outpatient physical therapy for adults after knee replacement is feasible, however, in this pilot study, changes were not observed in moderate intensity physical activity as compared to standard post-operative physical therapy. Future studies are needed to explore additional low-cost strategies and the optimal time to promote physical activity after knee replacement. This article is protected by copyright. All rights reserved.

Study objective To describe recent practice patterns of preoperative tests and to examine their association with 90-day all-cause readmissions and length of stay. Design Retrospective cohort study using the New York Statewide Planning and Research Cooperative System (SPARCS). Setting SPARCS from March 1, 2016, to July 1, 2017. Participants Adults undergoing Total Hip Replacement (THR) or Total Knee Replacement (TKR) had a preoperative screening outpatient visit within two months before their surgery. Interventions Electrocardiogram (EKG), chest X-ray, and seven preoperative laboratory tests (RBCs antibody screen, Prothrombin time (PT) and Thromboplastin time, Metabolic Panel, Complete Blood Count (CBC), Methicillin Resistance Staphylococcus Aureus (MRSA) Nasal DNA probe, Urinalysis, Urine culture) were identified. Primary and secondary outcome measures Regression analyses were utilized to determine the association between each preoperative test and two postoperative outcomes (90-day all-cause readmission and length of stay). Regression models adjusted for hospital-level random effects, patient demographics, insurance, hospital TKR, THR surgical volume, and comorbidities. Sensitivity analysis was conducted using the subset of patients with no comorbidities. Results Fifty-five thousand ninety-nine patients (60% Female, mean age 66.1+/− 9.8 SD) were included. The most common tests were metabolic panel (74.5%), CBC (66.8%), and RBC antibody screen (58.8%). The least common tests were MRSA Nasal DNA probe (13.0%), EKG (11.7%), urine culture (10.7%), and chest X-ray (7.9%). Carrying out MRSA testing, urine culture, and EKG was associated with a lower likelihood of 90-day all-cause readmissions. The length of hospital stay was not associated with carrying out any preoperative tests. Results were similar in the subset with no comorbidities. Conclusions Wide variation exists in preoperative tests before THR and TKR. We identified three preoperative tests that may play a role in reducing readmissions. Further investigation is needed to evaluate these findings using more granular clinical data.

Systemic sclerosis (SSc) patients are classified according to degree of skin fibrosis (limited and diffuse cutaneous) and serum autoantibodies. We undertook the present multicenter study to determine if intrinsic subset (IS) classification based upon skin gene expression yields additional valuable clinical information.SSc patients and healthy participants (HP) were classified as Normal-like, Limited, Fibroproliferative and Inflammatory IS using a previously trained classifier. Clinical data were obtained (serum autoantibodies, pulmonary function testing, modified Rodnan Skin scores [mRSS], and high-resolution chest computed tomography [HRCT]). Statistical analyses were performed to compare patients classified by IS, traditional cutaneous classification, and serum autoantibodies.223 participants (165 SSc [115 dcSSc and 50 lcSSc] and 58 HP) were classified. Inflammatory IS patients had higher mRSS (22.1±9.9, p0.001) than other IS and dcSSc (19.4±9.4, p= 0.05) despite similar disease duration (median [IQR] months 14.9[19.9] vs 18.4[31.6], p=0.48). In multivariable modeling, no significant association between mRSS and RNA Pol III (p=0.07) or Scl-70 (p=0.09) was found. Radiographic ILD was more prevalent in Fibroproliferative IS compared to other IS (91%, p=0.04) with similar prevalence between lcSSc and dcSSc (67% vs. 76%, p=0.73). Positive Scl-70 antibody was the strongest ILD predictor (p0.001). Interestingly, all lcSSc/Fibroproliferative patients were demonstrated radiographic ILD.Classification by IS identifies patients with distinct clinical phenotypes versus traditional cutaneous or autoantibody classification. IS classification identifies subgroups of SSc patients with more radiographic ILD (Fibroproliferative), higher mRSS (Inflammatory) and milder phenotype (Normal-like), and may provide additional clinically useful information to current SSc classification systems. This article is protected by copyright. All rights reserved.

Introduction Management of chronic kidney disease (CKD) entails high medical complexity and often results in high hospitalization burden. There are limited data on the associations of longitudinal hospital utilization patterns with adverse clinical outcomes in individuals with CKD. Methods We derived cumulative all-cause hospitalization trajectory groups using latent class trajectory analysis in 3012 participants of the Chronic Renal Insufficiency Cohort (CRIC) Study who were alive and did not reach end-stage kidney disease (ESKD) within 4 years of study entry. Cox proportional hazards models tested the associations between hospitalization trajectory groups and risks of ESKD and death prior to the onset of ESKD (ESKD-censored death). Results Within 4 years of study entry, there were 5658 hospitalizations among 3012 participants. We identified 3 distinct subgroups of individuals with CKD based on cumulative all-cause hospitalization trajectories over 4 years: low-utilizer (n = 1066), intermediate-utilizer (n = 1802), and high-utilizer (n = 144). High-utilizers represented a patient population of lower socioeconomic status who had a greater prevalence of comorbid conditions and lower kidney function compared with intermediate- and low-utilizers. After the 4-year ascertainment period to form the trajectory subgroups, there were 544 ESKD events and 437 ESKD-censored deaths during a median follow-up time of 5.1 years. Compared with low-utilizers, intermediate-utilizers and high-utilizers were at 1.49-fold (95% confidence interval [CI] 1.22–1.84) and 1.75-fold (95% CI 1.20–2.56) higher risk of ESKD in adjusted analyses, respectively. Compared with low-utilizers, intermediate-utilizers and high-utilizers were at 1.48-fold (95% CI 1.17–1.87) and 2.58-fold (95% CI 1.74–3.83) higher risk of ESKD-censored death in adjusted analyses, respectively. Conclusions Trajectories of cumulative all-cause hospitalization identify subgroups of individuals with CKD who are at high risk of ESKD and death., Graphical abstract

To improve the timeliness and quality of discharge for patients by creating the role of the attending nurse.Discharge time affects hospital throughput and patient satisfaction. Bedside nurses and hospitalists have competing priorities that can hinder performing timely, high-quality discharges.This retrospective analysis evaluated the effect of an attending nurse paired with a hospital medicine physician on discharge time and quality. A total of 8329 patient discharges were eligible for the study, and propensity score matching yielded 2715 matched pairs.In the post-intervention matched cohort, the percentage of patients discharged before 2 PM increased from 34.4% to 45.9% (p .01), and the median discharge time moved 48 min earlier. In the unmatched cohort, patient satisfaction with the discharge process improved on several questions. While length of stay was not affected, the 30-day readmission rate did increase from 8.9% to 10.7% (p = .02).With the new attending nurse role, we positively impacted throughput by shifting discharge times earlier in the day while improving patient satisfaction. Length of stay stayed the same but the 30-day readmission rate increased.Our multidisciplinary approach to the problem of late discharge times led to the creation of a new role. This role made ownership of discharge tasks clear and reduced competing priorities, freeing up nurses and hospitalists to perform other care-related responsibilities without holding up discharges.

Background and objectives Kidney functional magnetic resonance imaging (MRI) requires further investigation to enhance the noninvasive identification of patients at high risk of CKD progression. Design, setting, participants, & measurements In this exploratory study, we obtained baseline diffusion-weighted and blood oxygen level–dependent MRI in 122 participants of the CKD Optimal Management with Binders and Nicotinamide trial, which was a multicenter, randomized, double-blinded, 12-month, four-group parallel trial of nicotinamide and lanthanum carbonate versus placebo conducted in individuals with eGFR 20–45 ml/min per 1.73 m2. Lower values of apparent diffusion coefficient (ADC) on diffusion-weighted MRI may indicate increased fibrosis, and higher values of relaxation rate (R2*) on blood oxygen level–dependent MRI may represent decreased oxygenation. Because there was no effect of active treatment on eGFR over 12 months, we tested whether baseline kidney functional MRI biomarkers were associated with eGFR decline in all 122 participants. In a subset of 87 participants with 12-month follow-up MRI data, we evaluated whether kidney functional MRI biomarkers change over time. Results Mean baseline eGFR was 32±9 ml/min per 1.73 m2, and mean annual eGFR slope was −2.3 (95% confidence interval [95% CI], −3.4 to −1.1) ml/min per 1.73 m2 per year. After adjustment for baseline covariates, baseline ADC was associated with change in eGFR over time (difference in annual eGFR slope per 1 SD increase in ADC: 1.3 [95% CI, 0.1 to 2.5] ml/min per 1.73 m2 per year, ADC×time interaction P=0.04). This association was no longer significant after further adjustment for albuminuria (difference in annual eGFR slope per 1 SD increase in ADC: 1.0 (95% CI, −0.1 to 2.2) ml/min per 1.73 m2 per year, ADC×time interaction P=0.08). There was no significant association between baseline R2* and change in eGFR over time. In 87 participants with follow-up functional MRI, ADC and R2* values remained stable over 12 months (intraclass correlation: 0.71 and 0.68, respectively). Conclusions Baseline cortical ADC was associated with change in eGFR over time, but this association was not independent of albuminuria. Kidney functional MRI biomarkers remained stable over 1 year. Clinical Trial registry name and registration number CKD Optimal Management with Binders and Nicotinamide (COMBINE), NCT02258074.

ObjectiveTo investigate the occurrence of and risk factors for progression of carotid intima media thickness (IMT) and plaque in women with and without SLE.MethodsA cohort of 149 women with SLE and 126 controls participated in SOLVABLE (Study of Lupus Vascular and Bone Long-term Endpoints). Demographics, cardiovascular and SLE factors, and laboratory assessments were collected at baseline. Carotid IMT and plaque were measured using B-mode ultrasound at baseline and at 5-year follow-up. Regression models were used to identify predictors of progression in carotid IMT and plaque; multivariate models were adjusted for age, hypertension and total cholesterol to high-density lipoprotein ratio.ResultsThe mean±SD follow-up time was 5.35±0.60 years in cases and 5.62±0.66 years in controls. The mean IMT change per year was 0.008±0.015 mm in cases and 0.005±0.019 mm in controls (p=0.24). At follow-up, 31.5% of cases and 15% of controls had plaque progression, with a relative risk for plaque progression of 2.09 (95% CI 1.30 to 3.37). In SLE cases, higher fasting glucose and lower fibrinogen were associated with IMT progression after adjustment. Larger waist circumference and non-use of hydroxychloroquine were associated with plaque progression after adjustment.ConclusionPotential modifiable risk factors for carotid IMT and plaque progression in women with SLE were identified, suggesting that monitoring of glucose and waist circumference and use of hydroxychloroquine may be beneficial.

Objective Identify distinct trajectories of lack of knee confidence over an 8-year follow-up period and examine baseline factors associated with poor trajectories in persons with or at risk for knee osteoarthritis (OA). Methods The Osteoarthritis Initiative is a prospective cohort study of persons with or at high risk for knee OA. Confidence in the knees was assessed within the Knee Injury and Osteoarthritis Outcome Score instrument querying how much the individual is troubled by lack of confidence in his/her knee(s), rated as not-at-all (0), mildly (1), moderately (2), severely (3), and extremely (4) troubled, reported annually from baseline to 96 months. Lack of knee confidence was defined as a score ≥ 2. We used latent class models to identify subgroups that share similar underlying knee confidence trajectories over an 8-year period, and multivariable multinomial logistic regression models to examine baseline factors associated with poor trajectories. Results Among 4515 participants [mean age 61.2 years (SD 9.2), BMI 28.6 kg/m2 (4.8); 2640 (58.5%) women], four distinct knee confidence trajectories were identified: persistently good (65.6%); declining (9.1%); poor, improving (13.9%); and persistently poor (11.4%). Baseline predictors associated with persistently poor confidence (reference: persistently good) were younger age, male sex, higher BMI, depressive symptoms, more advanced radiographic disease, worse knee pain, weaker knee extensors, history of knee injury and surgery, and reported hip and/or ankle pain. Conclusion Findings suggest the dynamic nature of self-reported knee confidence and addressing modifiable factors (e.g., BMI, knee strength, depressive symptoms, lower limb pain) may improve its long-term course.

Objectives Disability prevention strategies are more achievable before osteoarthritis disease drives impairment. It is critical to identify high-risk groups, for strategy implementation and trial eligibility. An established measure, gait speed is associated with disability and mortality. We sought to develop and validate risk stratification trees for incident slow gait in persons at high risk for knee osteoarthritis, feasible in community and clinical settings. Methods Osteoarthritis Initiative (derivation cohort) and Multicenter Osteoarthritis Study (validation cohort) participants at high risk for knee osteoarthritis were included. Outcome was incident slow gait over up to 10-year follow-up. Derivation cohort classification and regression tree analysis identified predictors from easily assessed variables and developed risk stratification models, then applied to the validation cohort. Logistic regression compared risk group predictive values; area under the receiver operating characteristic curves (AUCs) summarised discrimination ability. Results 1870 (derivation) and 1279 (validation) persons were included. The most parsimonious tree identified three risk groups, from stratification based on age and WOMAC Function. A 7-risk-group tree also included education, strenuous sport/recreational activity, obesity and depressive symptoms; outcome occurred in 11%, varying 0%–29 % (derivation) and 2%–23 % (validation) depending on risk group. AUCs were comparable in the two cohorts (7-risk-group tree, 0.75, 95% CI 0.72 to 0.78 (derivation); 0.72, 95% CI 0.68 to 0.76 (validation)). Conclusions In persons at high risk for knee osteoarthritis, easily acquired data can be used to identify those at high risk of incident functional impairment. Outcome risk varied greatly depending on tree-based risk group membership. These trees can inform individual awareness of risk for impaired function and define eligibility for prevention trials.

Deceased organ donor intervention research aims to increase organ quality and quantity for transplantation. We assessed the proportion of kidney transplant candidates who would accept "intervention organs," participate in organ intervention research, and factors influencing acceptance. Kidney transplant candidates were presented 12 hypothetical scenarios, which varied three attributes, donor age, predicted waiting time to receive another organ offer, and research risk to the organ. Candidates were also randomly assigned to one of two conditions varying recipient risk. For each scenario, candidates agreed to accept the intervention organ or remain waitlisted. We fit a multivariable logit model to determine the association between scenario attributes and the acceptance decision. Of 249 participants, most (96%) accepted intervention organs under some or all conditions. Factors independently associated with candidates' greater likelihood of accepting an intervention organ included: low risk to the kidney from the intervention (OR 20.53 [95% Confidence Interval (CI), 13.91-30.29]); younger donor age (OR 3.72 [95% CI, 2.83-4.89]), longer time until the next organ offer (OR 3.48 [95% CI, 2.65-4.57]), and greater trust in their transplant physician (OR 1.03 [95% CI, 1.00-1.06]). Candidates with a lower likelihood of acceptance had been waitlisted longer (OR 0.97 per month [95% CI, 0.96-0.99]) and were Black (OR 0.21 [95% CI, 0.08-0.55]). Most candidates would accept an intervention organ, which should encourage transplant leaders to conduct deceased donor organ intervention trials.

BACKGROUND Minimizing unintended medication errors after admission is a common goal for clinical pharmacists and hospitalists. OBJECTIVE We assessed the clinical and economic impact of a medication reconciliation service in a model of designated ward pharmacists working in a hospitalist-managed acute medical unit as part of a multidisciplinary team. METHODS In this retrospective observational study, we compared pharmacist intervention records before and after the implementation of a medication reconciliation service by designated pharmacists. The frequency and type of intervention were assessed and their clinical impact was estimated according to the length of hospital stay and 30-day readmission rate. A cost analysis was performed using the average hourly salary of a pharmacist, cost of interventions (time spent on interventions), and cost avoidance (avoided costs generated by interventions). RESULTS After the implementation of the medication reconciliation service, the frequency of pharmacist interventions increased from 3.9% to 22.1% (p

Objective Obesity has been found to be a risk factor for hospitalization with COVID‐19. We were interested in understanding whether patients hospitalized with COVID‐19 differed in BMI at older versus younger ages, and if trends were independent of diabetes and hypertension. Methods We performed a cross‐sectional analysis of patients hospitalized with moderate to severe COVID‐19 at Northwestern Memorial Hospital from March 19th, 2020 until April 4th, 2020. We compared patients hospitalized with COVID‐19 above and below the age of 50, and to those hospitalized without COVID‐19. Results We found patients younger than 50 years of age hospitalized with COVID‐19 without diabetes or hypertension had mean BMI greater than those older than 50 years of age, with BMI 43.1 (95%CI 34.5 – 51.7) kg/m2 vs 30.1 (95%CI 27.7 – 32.5) kg/m2 (p=0.02). Furthermore, BMI appears to inversely correlate with increasing age amongst patients hospitalized with COVID‐19. We did not detect the same difference or trend for patients hospitalized without COVID‐19. Conclusion We found younger patients (age

Objective The objective of the study was to describe the effect of the vaginal ring and transdermal patch on lamotrigine serum levels in women with epilepsy. Background Previous studies demonstrate that oral hormonal contraceptives containing synthetic estrogen increase lamotrigine clearance through induction of glucuronidation. This leads to variable lamotrigine serum concentrations throughout monthly cycles in women who are on combined oral contraceptives (COCs). The effects of estrogen-containing nonoral hormonal contraceptive methods, including the vaginal ring and transdermal patch, on lamotrigine pharmacokinetics are not well described. Methods Retrospective chart review was performed to identify serum lamotrigine levels drawn from women with epilepsy while on the active phase of vaginal ring or transdermal patch and while off contraception. Wilcoxon signed-rank tests for paired data were used to compare the difference in dose-corrected lamotrigine concentration in plasma between values while on hormonal contraception to those while off contraception in patients using a vaginal ring. Results Six patients were using the vaginal ring, and one patient was using the transdermal patch. Lamotrigine dose-corrected concentrations were decreased during the active phase of the vaginal ring compared with concentrations during the period off contraception (p = .04). There was one patient without a decrease in concentration, but the other five patients on the vaginal ring had a decrease in dose-corrected lamotrigine concentration ranging from 36 to 70% while on the vaginal ring. Similarly, one patient using the transdermal patch had a decrease of 37% in dose-corrected lamotrigine concentration while on the patch. Conclusions The findings support that the vaginal ring contraceptive method decreases lamotrigine concentrations during the active phase of treatment. This has important implications for contraceptive counseling and maintaining therapeutic levels in women of childbearing age with epilepsy.

Supplemental material, Supplementary_Methods for Mast cell activation in the systemic sclerosis esophagus by Kevin Tom, Bhaven K Mehta, Aileen Hoffmann, Kathleen Aren, Mary Carns, Jungwha Lee, Viktor Martyanov, Dillon Popovich, Noelle Kosarek, Tammara A. Wood, Darren Brenner, Dustin A Carlson, Lorena Ostilla, Emma Willcocks, Paul Bryce, Joshua B Wechsler, Michael L Whitfield and Monique Hinchcliff in Journal of Scleroderma and Related Disorders

Additional file 3 Table S1. Local arm skin scores at the time of biopsy performance Secondary Cohort.

Supplemental material, Supplementary_Tables_and_Figures for Mast cell activation in the systemic sclerosis esophagus by Kevin Tom, Bhaven K Mehta, Aileen Hoffmann, Kathleen Aren, Mary Carns, Jungwha Lee, Viktor Martyanov, Dillon Popovich, Noelle Kosarek, Tammara A. Wood, Darren Brenner, Dustin A Carlson, Lorena Ostilla, Emma Willcocks, Paul Bryce, Joshua B Wechsler, Michael L Whitfield and Monique Hinchcliff in Journal of Scleroderma and Related Disorders

Supplemental material, MyCI_paper_v2_Supp_Material for Myoelectric Computer Interface Training for Reducing Co-Activation and Enhancing Arm Movement in Chronic Stroke Survivors: A Randomized Trial by Emily M. Mugler, Goran Tomic, Aparna Singh, Saad Hameed, Eric W. Lindberg, Jon Gaide, Murad Alqadi, Elizabeth Robinson, Katherine Dalzotto, Camila Limoli, Tyler Jacobson, Jungwha Lee and Marc W. Slutzky in Neurorehabilitation and Neural Repair

This cohort study evaluates long-term levels of physical activity and inactivity among adults with or likely to develop knee osteoarthritis., Key Points Question Are long-term strenuous physical activity and extensive sitting each associated with risk for developing radiographic knee osteoarthritis in individuals at high risk for the disease? Findings In this cohort study of 1194 persons at high risk for but without radiographic evidence of knee osteoarthritis who were followed up for up to 10 years, long-term participation in strenuous physical activities was not associated with risk of incident radiographic knee osteoarthritis. Persistent extensive sitting was not associated with either elevated or reduced risk. Meaning These findings suggest that older adults at high risk for knee osteoarthritis may safely engage in strenuous physical activities at a moderate level to improve their general health., Importance Persons with knee symptoms recognize the health benefits of engaging in physical activity, but uncertainty persists about whether regular strenuous physical activity or exercise can accelerate tissue damage. A sedentary lifestyle of inactivity or underloading may also be associated with deleterious joint health. Objective To establish whether long-term strenuous physical activity participation and extensive sitting behavior are each associated with increased risk of developing radiographic knee osteoarthritis (KOA) in individuals at high risk for the disease. Design, Setting, and Participants This cohort study analyzed data from the Osteoarthritis Initiative, a prospective longitudinal cohort study of men and women with or at an increased risk of developing symptomatic, radiographic KOA. Community-dwelling adults were recruited from 4 US sites (Baltimore, Maryland; Columbus, Ohio; Pittsburgh, Pennsylvania; and Pawtucket, Rhode Island) and were followed up for up to 10 years. Individuals were included if they had a baseline Kellgren and Lawrence grade of 0 in both knees and completed a PASE (Physical Activity Scale for the Elderly) questionnaire at baseline and at least 2 follow-up visits over an 8-year interval. Data analyses were conducted from May 2018 to November 2018. Exposures Baseline to 8-year trajectories of strenuous physical activity participation and extensive sitting behavior were identified using group-based trajectory models. Main Outcomes and Measures Incident radiographic KOA, defined as Kellgren and Lawrence grade 2 or higher in either knee by the 10-year follow-up visit. Results A total of 1194 participants were included in the sample (697 women [58.4%]), with a baseline mean (SD) age of 58.4 (8.9) years and mean body mass index (BMI) of 26.8 (4.5). Four distinct trajectories of weekly hours spent in strenuous physical activities and 3 distinct trajectories of extensive sitting were identified. Long-term engagement in low-to-moderate physical activities (adjusted odds ratio [OR], 0.69; 95% CI, 0.48-1.01) or any strenuous physical activities (adjusted OR, 0.75; 95% CI, 0.53-1.07) was not associated with 10-year incident radiographic KOA. Persistent extensive sitting was not associated with incident KOA. Despite relatively mild symptoms and high function in this early-stage sample, 594 participants (49.7%) did not engage in any strenuous physical activities (ie, 0 h/wk) across 8 years, and 507 (42.5%) engaged in persistent moderate-to-high frequency of extensive sitting. Older age, higher BMI, more severe knee pain, non–college graduate educational level, weaker quadriceps, and depression were each associated with a persistent lack of engagement in strenuous physical activities. Conclusions and Relevance Results from this study appeared to show no association between long-term strenuous physical activity participation and incident radiographic KOA. The findings raise the possibility of a protective association between incident KOA and a low-to-moderate level of strenuous physical activities.

Supplemental material, Supplementary_Tables for Diffuse cardiac fibrosis quantification in early systemic sclerosis by magnetic resonance imaging and correlation with skin fibrosis by Daniel C Lee, Monique E Hinchcliff, Roberto Sarnari, Madeline M Stark, Jungwha Lee, Kimberly Koloms, Aileen Hoffmann, Mary Carns, Anjali Thakrar, Kathleen Aren, John Varga, Alejandro Aquino, James C Carr, Brandon C Benefield and Sanjiv J Shah in Journal of Scleroderma and Related Disorders

Supplemental material, Supplementary table for Infarct location is associated with quality of life after mild ischemic stroke by Chen Lin, Rajbeer Sangha, Jungwha Lee, Carlos Corado, Anvesh Jalasutram, Neil Chatterjee, Carson Ingo, Timothy Carroll and Shyam Prabhakaran in International Journal of Stroke

Objective To determine the association between serum autoantibodies and survival in patients with incident systemic sclerosis (SSc)–pulmonary arterial hypertension (PAH) enrolled in the Pulmonary Hypertension Assessment and Recognition of Outcomes in Scleroderma (PHAROS) Registry. Methods Patients with definite PAH diagnosed by right heart catheterization within 6 months of registry enrollment were studied. Serum autoantibodies were assayed at each participating institution’s clinical laboratory. Mortality data were collected from electronic medical records and/or the Social Security Death Index. Kaplan−Meier survival estimates were reported for five autoantibody groups (anticentromere/AC, nucleolar ANA/NUC, anti-topoisomerase/Scl-70, overlapping or non-specific autoantibodies/other, and a combined group with similar survival consisting of RNA polymerase III, U1RNP, and autoantibody-negative patients). Cox proportional hazards models permitted examination of the association between autoantibody groups and overall survival, controlling for age, sex, race, and SSc disease duration. Results In all, 162 subjects had PAH, and serum autoantibody and survival information; 60 (37%) had AC, 39 (24%) NUC, 11 (7%) Scl-70, 28 (17%) had other, 9 (6%) RNA pol, 8 (5%) U1RNP autoantibodies, and 7 (4%) had negative antibodies; 32 (20%) subjects died over a median follow-up time of 2.1 years (range: 0.01–6.8); 1- and 3-year survival estimates were, respectively, 94% and 78% for AC, 94% and 72% for NUC, 89% and 63% for Scl-70, 92% and 79% for the other group, and 100% and 93% for the combined group. Unadjusted and adjusted hazard ratios revealed no statistically significant association between risk of death and autoantibodies. Conclusion Anticentromere and NUC autoantibodies are prevalent in SSc-PAH patients. An association between serum autoantibodies and survival in patients with SSc-PAH was not identified in the PHAROS cohort.

Investigate the relationship between sedentary behavior and physical function in adults with knee osteoarthritis (OA), controlling for moderate-vigorous physical activity (MVPA) levels.Sedentary behavior was objectively measured by accelerometer on 1,168 participants ages 49-83 years in the Osteoarthritis Initiative with radiographic knee OA at the 48-month clinic visit. Physical function was assessed using 20-meter walk and chair stand testing. Sedentary behavior was identified by accelerometer activity counts/minute100. The cross-sectional association between sedentary quartiles and physical function was examined by multiple linear regression, adjusting for demographic factors (age, sex, race/ethnicity, education level), health factors (comorbidity, body mass index, knee pain, knee OA severity, presence of knee symptoms), and average daily MVPA minutes.Adults with knee OA spent two-thirds of their daily time in sedentary behavior. The average gait speed among the most sedentary quartile was 3.88 feet/second, which was significantly slower than the speed of the less sedentary groups (4.23, 4.33, and 4.33 feet/second, respectively). The average chair stand rate among the most sedentary group was significantly lower (25.9 stands/minute) than the rates of the less sedentary behavior groups (28.9, 29.1, and 31.1 stands/minute, respectively). These trends remained significant in multivariable analyses adjusted for demographic factors, health factors, and average daily MVPA minutes.Being less sedentary was related to better physical function in adults with knee OA independent of MVPA time. These findings support guidelines to encourage adults with knee OA to decrease time spent in sedentary behavior in order to improve physical function.

Obesity-related comorbidities frequently contribute to acute illness. Obesity interventions during hospitalization are not often utilized but may be effective.To examine whether inpatient weight loss intervention with postdischarge follow-up results in weight loss at 6 months when compared to control.Prospective, randomized controlled trial.Academic medical center in Chicago, Illinois.Obese adult inpatients.Intervention subjects viewed a weight education video, underwent personalized counseling, and set specific weight loss, dietary, and fitness goals prior to discharge. All participants were followed by phone over the subsequent 6 months. The trial was unblinded to participants, physicians, and investigators.Primary outcome was weight change between groups at 6 months. Weight change from baseline and waist-to-hip ratios (WHR) were also assessed.For 176 participants in the intention-to-treat analysis, mean baseline weight for the intervention group was 107.7 kg (standard deviation [SD]=16.7) and 105.1 kg (SD=17.4) for controls. Mean weight loss at 6 months was 1.08 kg (SD=4.33) for intervention subjects and 1.35 kg (SD=3.65) among controls. There was no significant difference in weight loss between groups at 6 months (P=0.26). As-treated analysis yielded similar results. There were no differences in WHRs between the intervention and control at 6 months (0.04 vs 0.04, P=0.59).We found no difference in weight loss between the intervention and control groups at 6 months.

Prevention of late implant bone loss is a critical component in long-term success of implants. The aim of the present study was to evaluate factors affecting late implant bone loss.Three hundred thirty-nine endosseous root-form dental implants placed between April 1981 and April 2002 in 69 patients were analyzed. The implants were categorized based on the following factors: (1) surface characteristics (smooth versus rough), (2) length (short [10 mm] versus long [or = 10 mm]), width (narrow [3.75 mm], regular [3.75 to 4.0 mm], or wide [4.0 mm]), (3) the amount of keratinized mucosa (oror = 2 mm), (4) location (anterior versus posterior; maxilla versus mandible), (5) type of prosthesis (fixed versus removable), and (6) type of opposing dentition. The effects of these factors on clinical parameters, especially average annual bone loss (ABL), were evaluated clinically and radiographically by a blinded examiner. The parameters evaluated were modified Plaque Index, Gingival Index, modified Bleeding Index, probing depth, and ABL.Shorter implants, wider implants, implants supporting fixed prostheses, and implants in smokers were found to be associated with greater ABL (P.05). The random intercept mixed effects model showed that implant length was the most critical factor for maintenance of ABL.Shorter implants, wider implants, implants supporting fixed prostheses, and implants in smokers were associated with greater ABL. Implant length was the most significant factor in the maintenance of dental implants. Randomized controlled clinical trials are needed to confirm the results obtained from this retrospective clinical study.

There is considerable interest in redox regulation and new targets for thioredoxin and glutaredoxin are now being identified. It would be of great benefit to the field to have a list of all possible candidates for redox regulation--that is all disulfide proteins in plant. We developed a simple and very powerful method for identifying proteins with disulfide bonds in vivo. In this method, free thiols in proteins are fully blocked by alkylation, following which disulfide cysteines are converted to sulfhydryl groups by reduction. Finally, proteins with sulfhydryls are isolated by thiol affinity chromatography. Our method is unique in that membrane proteins as well as water-soluble proteins are examined for their disulfide nature. By applying this method to Arabidopsis thaliana we identified 65 putative disulfide proteins, including 20 that had not previously been demonstrated to be regulated by redox state. The newly identified, possibly redox-regulated proteins include: violaxanthin de-epoxidase, two oxygen-evolving enhancer proteins, carbonic anhydrase, photosystem I reaction center subunit N, photosystem I subunit III, S-adenosyl-L-methionine carboxyl methyltransferase, guanylate kinase, and bacterial mutT homolog. Possible functions of disulfide bonding in these proteins are discussed.

Additional file 1. Supplemental methods AR&T 2019.

Redesigning Systems to Improve Teamwork and Quality for Hospitalized Patients (RESET) â Site Visit. Observation protocol (DOCX 13 kb)

Redesigning Systems to Improve Teamwork and Quality for Hospitalized Patients (RESET) â Site Visit. Interview guide for semi-structured interviews with leaders and guide for focus group discussions with front line staff (DOCX 38 kb)

Redesigning Systems to Improve Teamwork and Quality for Hospitalized Patients (RESET) â Site Visit. Observation protocol (DOCX 13 kb)

Additional file 1. Supplemental methods AR&T 2019.

Table S1. Measures to Assess Fidelity of Implementation. Table S2. Safety, Patient Experience, and Efficiency Outcome Measures (DOCX 14 kb)

Table S1. Measures to Assess Fidelity of Implementation. Table S2. Safety, Patient Experience, and Efficiency Outcome Measures (DOCX 14 kb)