Peritoneal Dialysis Technique Survival: A Cohort Study.

Rationale & Objective: Reasons for transfer from peritoneal dialysis (PD) to hemodialysis (HD) remain incompletely understood. Among incident and prevalent patients receiving PD, we evaluated the association of clinical factors, including prior treatment with HD, with PD technique survival.

Study Design: Retrospective cohort study.

Ergocalciferol Supplementation in Hemodialysis Patients With Vitamin D Deficiency: A Randomized Clinical Trial.

Locally produced 1,25-dihydroxyvitamin D3 may have pleiotropic effects outside of bone. Experimental and observational studies suggest that nutritional vitamin D may enhance erythropoiesis in settings of 25-hydroxy vitamin D (25(OH)D) deficiency. We conducted a double-blind, placebo-controlled, randomized clinical trial to assess the effects of supplementation with ergocalciferol on epoetin utilization and other secondary outcomes in patients on hemodialysis with serum 25(OH)D <30 ng/ml.

Seasonal changes in amount and patterns of physical activity in women.

Background: Environmental factors including seasonal changes are important to guide physical activity (PA) programs to achieve or sustain weight loss. The goal was to determine seasonal variability in the amount and patterns of free-living PA in women.

Methods: PA was measured in 57 healthy women from metropolitan Nashville, TN, and surrounding counties (age: 20 to 54 years, body mass index: 17 to 48 kg/m2) using an accelerometer for 7 consecutive days during 3 seasons within 1 year.

Resistance exercise augments the acute anabolic effects of intradialytic oral nutritional supplementation.

Background: An intriguing strategy to further enhance the anabolic effects of nutritional supplementation is to combine the administration of nutrients with resistance exercise. We hypothesized that the addition of resistance exercise to oral nutrition supplementation would lead to further increases in skeletal muscle protein accretion when compared to nutritional supplementation alone in chronic haemodialysis (CHD) patients.

Methods: We performed stable isotope protein kinetic studies in eight CHD patients during two separate settings: with oral nutritional supplementation alone (PO) and oral nutritional supplementation combined with a single bout of resistance exercise (PO + EX).

Body composition and physical activity in end-stage renal disease.

Objective: The study objective was to examine the relationship between visceral and somatic protein stores and physical activity in individuals with end-stage renal disease.

Design: This was a prospective single-center study.

Setting: The study took place at the Vanderbilt University Outpatient Dialysis Unit and General Clinical Research Center.

Intradialytic oral nutrition improves protein homeostasis in chronic hemodialysis patients with deranged nutritional status.

Decreased dietary protein intake and hemodialysis (HD)-associated protein catabolism predispose chronic HD (CHD) patients to deranged nutritional status, which is associated with poor clinical outcome in this population. Intradialytic parenteral nutrition (IDPN) reverses the net negative whole-body and skeletal muscle protein balance during HD. IDPN is costly and restricted by Medicare and other payers.

Metabolic syndrome as a risk factor for contrast-induced nephropathy in non-diabetic elderly patients with renal impairment.

Background/aims: Metabolic syndrome (MS) as a risk factor for contrast-induced nephropathy (CIN) has not been studied. The aim of the present study was to assess the influence of MS on the development of CIN in patients undergoing coronary angiography.

Methods: This was a prospective cohort study.

Increased muscle protein breakdown in chronic hemodialysis patients with type 2 diabetes mellitus.

Background: The presence of diabetes mellitus (DM) in chronic hemodialysis (CHD) patients has potential to increase body protein losses and muscle wasting.

Methods: In this study, we examined whole-body and skeletal muscle protein metabolism in 6 CHD patients with type 2 (T2) DM (2 male, 44.4 +/- 6.

Physical activity patterns in chronic hemodialysis patients: comparison of dialysis and nondialysis days.

Objective: To determine physical activity patterns in chronic hemodialysis patients with a specific emphasis on the difference between dialysis and nondialysis days. Design A cross-sectional single-center study.

Setting: Vanderbilt University Outpatient Dialysis Unit.

Use of air displacement plethysmography in the determination of percentage of fat mass in african american children.

The purpose of this study was to determine the ability of air displacement plethysmography (ADP) to estimate percentage of fat mass (%FM) in African American children. %FM was determined in 21 boys and 13 girls (11.0 +/- 1.

Predicting energy expenditure of physical activity using hip- and wrist-worn accelerometers.

To investigate the association between physical activity and health, we need accurate and detailed free-living physical activity measurements. The determination of energy expenditure of activity (EEACT) may also be useful in the treatment and maintenance of nutritional diseases such as diabetes mellitus. Minute-to-minute energy expenditure during a 24-h period was measured in 60 sedentary normal female volunteers (35.