Abstract:
:The effects of adding increasing concentrations of magnesium (Mg), zinc (Zn), and iron (Fe) on calcium (Ca) uptake into rat brush border membrane vesicles was measured. At ratios of 1:1, based on the RDA, none of these minerals were found to significantly decrease calcium uptake. Mg, however, inhibited Ca uptake at an RDA ratio of 3:1 (Mg:Ca). At higher RDA ratios (Zn:Ca 10:1), Zn also decreased Ca uptake. In a comparison of the molar ratios of the above cations, Zn inhibited Ca uptake the most (0.12:1), possibly by competing directly at high-affinity Ca binding sites. Fe did not decrease Ca uptake but rather demonstrated an enhancing effect at high concentrations (20:1). When mixtures of the above divalent cations were studied, the effects on Ca uptake could largely be explained by the actions of the ions individually.
journal_name
J Am Coll Nutrjournal_title
Journal of the American College of Nutritionauthors
Roth-Bassell HA,Clydesdale FMdoi
10.1080/07315724.1991.10718125subject
Has Abstractpub_date
1991-02-01 00:00:00pages
44-9issue
1eissn
0731-5724issn
1541-1087journal_volume
10pub_type
杂志文章abstract:OBJECTIVES:The effects of a new resistant dextrin ingested at breakfast on day-long metabolic parameters and ghrelin profile at subsequent lunch were investigated. METHODS:In this randomized, single-blinded, crossover study, 12 healthy men ingested a standardized breakfast with 50 g of NUTRIOSE 10, a resistant dextrin...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章,随机对照试验
doi:10.1080/07315724.2011.10719945
更新日期:2011-02-01 00:00:00
abstract:BACKGROUND:Psyllium and oat bran have been shown to lower plasma LDL cholesterol levels in different populations. Hypercholesterolemia is prevalent in the Northern part of Mexico and might be associated to dietary habits and sedentary lifestyle. METHODS:Sedentary normal (cholesterol<200 mg/dL) (n=36) and hypercholeste...
journal_title:Journal of the American College of Nutrition
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1080/07315724.1998.10718809
更新日期:1998-12-01 00:00:00
abstract:BACKGROUND:Premature infants require high intakes of Ca and P to mimic fetal accretion rates. With the current phosphate salt used, adequate amounts cannot be provided due to the precipitation of Ca and P in TPN solutions. OBJECTIVE:To compare monobasic potassium phosphate (monobasic regimen) and monobasic plus dibasi...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章
doi:10.1080/07315724.2006.10719517
更新日期:2006-02-01 00:00:00
abstract:OBJECTIVE:This study evaluated nutrition status to determine the impact of a novel approach using elemental nutrition compared to pancrelipase administration in patients with pancreatitis. METHODS:This retrospective study included adult patients with pancreatitis who were nil per os (NPO) and received elemental nutrit...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章
doi:10.1080/07315724.2015.1052592
更新日期:2016-05-01 00:00:00
abstract:OBJECTIVE:The role of dietary glycemic index (GI) and glycemic load (GL) in the development of obesity has been debated globally. The relationship with body shape and fat distribution was examined in this cross-sectional association study among apparently healthy Iranian adults. METHODS AND MATERIALS:A study populatio...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章
doi:10.1080/07315724.2017.1416312
更新日期:2018-07-01 00:00:00
abstract::Endothelial cells interact with blood components and the abluminal tissues, thus playing an active role in many aspects of vascular function. Numerous physiologic and pathophysiologic stimuli are often mediated by nutrients that can contribute to the overall functions of endothelial cells in the regulation of vascular...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章,评审
doi:10.1080/07315724.1996.10718609
更新日期:1996-08-01 00:00:00
abstract::The report of the National Cholesterol Education Program (NCEP) expert panel on detection, evaluation, and treatment of high blood cholesterol in adults published in 1988 evoked great interest from the medical profession, the public, and food manufacturers. The merits of different dietary interventions to lower plasma...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章,评审
doi:10.1080/07315724.1991.10718180
更新日期:1991-12-01 00:00:00
abstract:OBJECTIVE:Previous interventions have reported desirable effects of diets rich in whole grains or rich in fruits and vegetables on cardiovascular disease (CVD) risk factors and weight management. However, data are lacking regarding the effect of these fiber sources separately. The aim of this randomized clinical feedin...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章,随机对照试验
doi:10.1080/07315724.2018.1444520
更新日期:2018-09-01 00:00:00
abstract:OBJECTIVE AND METHODOLOGY:We determined the kinds and amounts of vitamin A compounds (retinol and various retinyl esters) circulating in serum and stored in liver and other selected tissues of ferrets, using high-performance liquid chromatography. RESULTS:The concentration of total retinyl esters in serum (43 +/- 1 mu...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章
doi:10.1080/07315724.1994.10718376
更新日期:1994-02-01 00:00:00
abstract:UNLABELLED:Dietary recommendations for the treatment of hypercholesterolemia (HC) emphasize stepwise reductions in fat intake, but there is no agreement on what lower limit is desirable or achievable. These recommendations have applied broadly to persons with HC alone, as well as to those with a combined elevation in t...
journal_title:Journal of the American College of Nutrition
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1080/07315724.1991.10718169
更新日期:1991-10-01 00:00:00
abstract:OBJECTIVE:To test the hypothesis that glucose ingestion leads to a decrease in plasma ionized calcium (iCa) and ionized magnesium (iMg) during the third trimester of pregnancy. METHODS:We studied 54 women who underwent a 50 g glucose challenge test (GCT) and 27 women who underwent a 3-hour 100 g glucose tolerance test...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章
doi:10.1080/07315724.1998.10718780
更新日期:1998-08-01 00:00:00
abstract:BACKGROUND:Osteoporosis remains a major health problem in all developed countries and is a condition in which several dietary factors have been implicated. OBJECTIVE:To assess the nutritional status and levels of adiposity of postmenopausal women in relation to bone mineral density. DESIGN:A cross-sectional study in ...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章
doi:10.1080/07315724.2013.866528
更新日期:2014-01-01 00:00:00
abstract:OBJECTIVE:To investigate whether a drink enriched with essential vitamins and minerals can improve biochemical status of enzymatic and non-enzymatic antioxidants in frail elderly people. METHODS:A six-month randomized, double blind, placebo controlled intervention study. Frail elderly people 65 years of age or older, ...
journal_title:Journal of the American College of Nutrition
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1080/07315724.2003.10719298
更新日期:2003-06-01 00:00:00
abstract:OBJECTIVE:This study was conducted to determine whether individuals attending an urban outpatient clinic met the National Health Promotion and Disease Prevention nutritional objectives and to assess factors associated with poor dietary habits. METHODS:Individuals who attended the general medicine outpatient clinic at ...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章
doi:10.1080/07315724.1995.10718488
更新日期:1995-04-01 00:00:00
abstract:BACKGROUND:Cost-effectiveness of calcium supplementation depends not only on the cost of the product but on the efficiency of its absorption. Published cost-benefit analyses assume equal bioavailability for all calcium sources. Some published studies have suggested that there are differences in both the bioavailability...
journal_title:Journal of the American College of Nutrition
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1080/07315724.2001.10719038
更新日期:2001-06-01 00:00:00
abstract:OBJECTIVE:Approximately 70% of all cancer patients have elevations in hepatic glucose production and/or reductions in glucose utilization. To identify an explanation for insulin resistance, we measured fasting hepatic glucose production (HGP), leucine appearance (Leu Ra), leucine oxidation (LO), glucose oxidation (GO) ...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章
doi:10.1080/07315724.1995.10718519
更新日期:1995-08-01 00:00:00
abstract:OBJECTIVE AND METHODS:We reviewed records of 41 children with treated phenylketonuria (PKU) in order to evaluate hematopoiesis and the effect of iron and protein sufficiency. RESULTS:Six children (15%) were found to have anemia. Combined depletion of iron and protein stores was most likely to result in anemia, and two...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章
doi:10.1080/07315724.2001.10719016
更新日期:2001-02-01 00:00:00
abstract::Patients who appear to respond best to high branched-chain amino acid (BCAA) solutions have been previously described by objective measurements such as total urinary nitrogen (TUN) excretion, oxygen consumption index (O2Cl), plasma lactate, plasma pyruvate, plasma glucose (PG) and urinary 3-methylhistidine. Use of the...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章
doi:10.1080/07315724.1992.10718192
更新日期:1992-02-01 00:00:00
abstract::Many believe that excessive intake of refined carbohydrates (CHO) plays a major role in the development of obesity/overweight, type 2 diabetes mellitus and insulin resistance, a collection of events commonly referred to as "diabesity," and have sought natural means to overcome these linked perturbations. As a first ap...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章
doi:10.1080/07315724.2009.10719781
更新日期:2009-06-01 00:00:00
abstract:OBJECTIVE:The objective of present study was to assess the relationship between the dietary intake and blood status of riboflavin and the prevalence of systemic inflammation among both depressed and nondepressed nurses. METHODS:This was a cross-sectional study on 98 female clinical nurses (45 depressed and 53 nondepre...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章
doi:10.1080/07315724.2011.10719977
更新日期:2011-10-01 00:00:00
abstract:OBJECTIVE:The kinetics of magnesium (Mg) absorption, after drinking Magnesia mineral water (204 mg Mg/L), was investigated in healthy humans aged (23-60 yrs). METHODS:Serum Mg, calcium (Ca), potassium (K) and sodium (Na) content, blood hemoglobin, erythrocyte and white blood cell counts as well as urinary volume and u...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章
doi:10.1080/07315724.2004.10719424
更新日期:2004-12-01 00:00:00
abstract:OBJECTIVES:The purpose of this study was to investigate whether probiotics had an effect on proinflammatory markers and cytokines in overweight and obese individuals and whether they could have synergistic effects with weight-loss diets. METHODS:A total of 75 healthy overweight and obese individuals completed this ran...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章,随机对照试验
doi:10.1080/07315724.2013.874937
更新日期:2014-01-01 00:00:00
abstract::Carbohydrate intolerance is positively correlated with saturated fat consumption. In contrast, individuals consuming diets comprised of polyunsaturated fatty acids (PUFA) have a lower incidence of diabetes mellitus (DM). To test the hypothesis that dietary fats may influence insulin sensitivity, insulin-stimulated glu...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章
doi:10.1080/07315724.1991.10718161
更新日期:1991-08-01 00:00:00
abstract::To examine the relationship between zinc (Zn) status and bone demineralization, a body Zn kinetics study was performed with 74 (37 male, 37 female) disabled persons ranging in age from 16 to 45 years. Three groups were classified according to degree of limited mobility: group 1 (n = 23), capable of walking; group 2 (n...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章
doi:10.1080/07315724.1993.10718284
更新日期:1993-02-01 00:00:00
abstract::Osteoporosis is a multifactorial disease with dimensions of genetics, endocrine function, exercise and nutritional considerations. Of particular considerations are calcium (Ca) status, Vitamin D, fluoride, magnesium and other trace elements. Several trace elements, particularly copper (Cu), manganese (Mn) and zinc (Zn...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章
doi:10.1080/07315724.1993.10718327
更新日期:1993-08-01 00:00:00
abstract:OBJECTIVE:To evaluate several potential clinical indicators of magnesium status (diet, blood, urine, 24-hour load retention) in patients with congestive heart failure before, during, and after oral magnesium supplementation. METHODS:Twelve patients with New York Heart Association class II-III heart failure and 12 age ...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章
doi:10.1080/07315724.1997.10718645
更新日期:1997-02-01 00:00:00
abstract::The potential relationship between red meat consumption and colorectal cancer (CRC) has been the subject of scientific debate. Given the high degree of resulting uncertainty, our objective was to update the state of the science by conducting a systematic quantitative assessment of the epidemiologic literature. Specifi...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章,meta分析,评审
doi:10.1080/07315724.2014.992553
更新日期:2015-01-01 00:00:00
abstract:OBJECTIVE:Magnesium (Mg) deficiency has been shown to increase substance P release and induce a pro-inflammatory response that can be attenuated with the administration of a substance P-antagonist. Neurogenic inflammation has also been implicated in traumatic brain injury (TBI), a condition where brain intracellular fr...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章
doi:10.1080/07315724.2004.10719398
更新日期:2004-10-01 00:00:00
abstract:OBJECTIVE:Brazilian propolis, a folk medicine, is used worldwide as an alternative medicine to prevent colon cancer. The objective of the study was to test in a small pilot biomarker study in a high-risk group the safety and efficacy of propolis for colon cancer prevention, which has not been evaluated in humans. METH...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章,随机对照试验
doi:10.1080/07315724.2012.10720434
更新日期:2012-10-01 00:00:00
abstract:OBJECTIVE:To evaluate the capability of DietMatePro, a PDA-based dietary assessment program, to monitor dietary intake and to improve adherence to a dietary regimen. DESIGN:Randomized controlled trial. SUBJECTS:Overweight and obese (Body Mass Index (BMI) 25-40) participants without dietary restrictions. INTERVENTION...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章,随机对照试验
doi:10.1080/07315724.2008.10719701
更新日期:2008-04-01 00:00:00