18 results match your criteria: "Jean Mayer USDA Human Nutrition Center on Aging at Tufts University[Affiliation]"

It has been reported that social engagement may be associated with dementia risk. We searched PubMed, EMBASE, PsycINFO, CINAHL, LILACS, Biomed Central, Scopus, and Web of Science from January 2012 - May 2017, supplemented by extraction from previous reviews. We included cohort and case-control studies examining the association between social engagement or loneliness and dementia risk, pooling data using a random-effects model.

View Article and Find Full Text PDF

Background: Diabetes is an important risk factor for cognitive impairment. Although some studies suggest that physical exercise can minimize age-related cognitive declines or improve brain morphology or function, benefits in diabetes or impaired glucose tolerance are unclear. Therefore, our aim was to evaluate the efficacy of exercise or physical activity on cognition in adults with type 2 diabetes, insulin resistance or impaired glucose tolerance.

View Article and Find Full Text PDF

Aims: Cardiovascular disease (CVD) is the leading cause of mortality in patients with end-stage renal disease (ESRD) receiving maintenance haemodialysis treatment. This study investigated the effect of a 12-week intradialytic progressive resistance training (PRT) intervention on pulse wave velocity (PWV) and associated haemodynamic, anthropometric, and hematologic outcomes in patients with ESRD.

Methods: Twenty-two patients with ESRD (59% men, 71.

View Article and Find Full Text PDF

Primary analysis of the Mandarin-speaking sub-study within the Sydney diabetes prevention program.

Diabetes Res Clin Pract

October 2017

The University of Sydney, Exercise, Health and Performance Faculty Research Group, Lidcombe, NSW 2141, Australia; The University of Sydney, Charles Perkins Centre, Sydney, NSW 2006, Australia; The University of Sydney, Sydney Medical School, Sydney, NSW 2006, Australia; Hebrew SeniorLife and Jean Mayer USDA Human Nutrition Center on Aging at Tufts University, Boston, MA 02111, USA.

Aim: There is strong and consistent evidence from large scale randomised controlled trials that type 2 diabetes can be prevented or delayed through lifestyle modification which improves diet quality, increases physical activity and achieves weight loss in people at risk. Worldwide, the prevalence of type 2 diabetes is increasing in individuals of Chinese descent. Culturally tailored programs are required to address the risk in the Chinese population.

View Article and Find Full Text PDF

Level of nutrition knowledge and its association with fat consumption among college students.

BMC Public Health

October 2016

Department of Public Health and Family Medicine, Tufts University School of Medicine, 136 Harrison Avenue, Jaharis 264, Boston, MA, 02111, USA.

Background: Intake of saturated fat, trans fat, and cholesterol has been associated with increased risk of coronary heart disease. The aim of this study was to explore whether increased nutrition knowledge is associated with a reduction in the consumption of unhealthy fats in a sample of university students.

Methods: A sample of 231 students, with a mean age of 20 years, was recruited from university campus during spring 2012.

View Article and Find Full Text PDF

Introduction This study assessed the feasibility and efficacy of a novel resistance training device used within an intradialytic progressive resistance training (PRT) intervention. Methods Non-randomized, within-subjects crossover design with outcomes assessed at baseline (week 0), postcontrol (week 13) and post-PRT intervention (week 26). Twenty-two hemodialysis patients (59% men, 71 ± 11 years) performed PRT three sessions per week for 12 weeks.

View Article and Find Full Text PDF

The purpose of this randomized controlled trial was to determine the effects of resistance training (RT) on markers of inflammation and immune function in breast cancer survivors. Thirty-nine breast cancer survivors were randomly assigned to a RT (n = 20) or control (n = 19) group. RT performed supervized exercise three times per week.

View Article and Find Full Text PDF

The primary aim of this study was to evaluate the benefits of resistance training (RT) on quality of life (QOL) and fatigue in breast cancer survivors as an adjunct to usual care. We recruited 39 women who had survived breast cancer [mean age (y) 51.9 ± 8.

View Article and Find Full Text PDF

Gamma-carboxylation and fragmentation of osteocalcin in human serum defined by mass spectrometry.

Mol Cell Proteomics

June 2015

From the ‡The Biodesign Institute at Arizona State University, Tempe, Arizona; §Department of Chemistry and Biochemistry, Arizona State University, Tempe, Arizona;

Serum osteocalcin (Oc) concentration is a highly specific measure of bone turnover, but its circulating proteoform(s) have not been well defined. Based on immunological methods, the major forms are thought to be the intact polypeptide and a large N-terminal-mid molecule fragment for which there is no consensus on the precise sequence. Vitamin K-dependent gamma (γ)-carboxylated variants of Oc are also found in circulation but there have been no methods that can define how many of the three potential γ-carboxyglutamic acid (Gla) residues are γ-carboxylated or provide their relative abundances.

View Article and Find Full Text PDF

Background: Statins are used to lower cardiovascular disease risk in part because of their effects on plasma lipid profiles. Dietary whole grains have been reported to improve plasma lipid profiles. Little is known about potential interactions between statins and whole grains.

View Article and Find Full Text PDF

A compelling body of literature suggests berry phytochemicals play beneficial roles in reversing age-related cognitive impairment and protect against neurodegenerative disorders. Anthocyanins are bioactive phytochemicals in berries suspected to be responsible for some of these neuroprotective effects. The plausible mechanisms of anthocyanin bioactivity in brain tissue are dependent on their bioavailability to the brain.

View Article and Find Full Text PDF

Obesity is recognized as a major public health problem. Obesity is a multifactorial disease and is often associated with a wide range of comorbidities including hypertension, non-insulin dependent (Type II) diabetes mellitus, and cardiovascular disease, all of which contribute to morbidity and mortality. This review deals with stable isotope mass spectrometric methods and the application of stable isotopes to metabolic studies of obesity.

View Article and Find Full Text PDF

HDL in atherosclerosis: actor or bystander?

Atheroscler Suppl

March 2003

Lipid Metabolism Laboratory, Jean Mayer USDA Human Nutrition Center on Aging at Tufts University, and Division of Endocrinology, Metabolism, Diabetes, and Molecular Medicine, New England Medical Center, Boston, MA 02111, USA.

Despite dramatic improvement in treatments for reducing risk for coronary heart disease (CHD), it is still the leading cause of mortality in the developed world. In the past decade, a major improvement in reducing low-density lipoprotein (LDL) cholesterol has been achieved with 3-hydroxy-3-methylglutaryl coenzyme A (HMG-CoA) reductase inhibitors (statins). This approach has been shown to be beneficial in both primary and secondary prevention of CHD.

View Article and Find Full Text PDF

Change in alpha1 HDL concentration predicts progression in coronary artery stenosis.

Arterioscler Thromb Vasc Biol

May 2003

Lipid Metabolism Laboratory, Jean Mayer USDA Human Nutrition Center on Aging at Tufts University and Division of Endocrinology, Metabolism, Diabetes, and Molecular Medicine, New England Medical Center, Boston, Mass 02111, USA.

Objective: We examined the effects of simvastatin-niacin and antioxidant vitamins on changes in high-density lipoprotein (HDL) subpopulations and alterations in coronary artery stenosis, as assessed by angiography.

Methods And Results: Lipids, lipoproteins, and HDL particles were measured on and off treatment in 123 subjects of the HDL-Atherosclerosis Treatment Study. Patients were assigned to 4 treatment groups, simvastatin-niacin, simvastatin-niacin-antioxidant vitamins, antioxidant vitamins, and placebo.

View Article and Find Full Text PDF

We investigated the effects of atorvastatin on the lipid and the apoA-I-containing HDL subpopulation profiles in 86 patients with established coronary heart disease (CHD). The entire drug treatment period lasted 12 weeks (4-week periods of 20 then 40, then 80 mg/day). Each dose of atorvastatin treatment resulted in significant reductions in plasma total-C, LDL-C, and triglyceride (TG), and non-significant increases in HDL-C levels compared with placebo treatment.

View Article and Find Full Text PDF

Comparing the effects of five different statins on the HDL subpopulation profiles of coronary heart disease patients.

Atherosclerosis

October 2002

Lipid Metabolism Laboratory, Jean Mayer USDA Human Nutrition Center on Aging at Tufts University and Division of Endocrinology, Metabolism, Diabetes, and Molecular Medicine, New England Medical Center, Boston, MA 02111, USA.

We compared the effects of five different statins (atorvastatin, simvastatin, pravastatin, lovastatin, and fluvastatin) on the lipid, lipoprotein, and apolipoprotein (apo) A-I-containing high-density lipoprotein (HDL) subpopulation profiles of 86 coronary heart disease (CHD) patients. Patients with established CHD, and low density lipoprotein (LDL) cholesterol (C)>130 mg/dl, and triglyceride (TG)<400 mg/dl, were treated with atorvastatin 20, 40, and 80 mg/day and one of the other four statins at 20, 40, and when available 80 mg/day in increasing doses (4 weeks of each dose) in a randomized crossover fashion. There was an 8-week placebo controlled washout period between different drug treatments.

View Article and Find Full Text PDF

High density lipoproteins (HDLs) and their subspecies play a role in the development of coronary heart disease (CHD). HDL subpopulations were measured by 2-dimensional nondenaturing gel electrophoresis in 79 male control subjects and 76 male CHD patients to test the hypothesis that greater differences in apolipoprotein (apo)A-I-containing HDL subpopulations would exist between these 2 groups than for traditional lipid levels. In CHD subjects, HDL cholesterol (HDL-C) was lower (-14%, P<0.

View Article and Find Full Text PDF

The first reaction of the catabolic pathway of cholesterol is catalyzed by CYP7 and serves as the rate-limiting step and major site of regulation of bile acid synthesis in the liver. A common A to C substitution at position -204 of the promoter of CYP7 gene has been associated with variations in plasma LDL-cholesterol concentrations but the effect of this polymorphism is unknown in the general population. The aim of the present study was therefore to investigate the association of this polymorphism to lipoprotein levels in a population-based sample of 1139 male and 1191 female Framingham Offspring participants.

View Article and Find Full Text PDF