Abstract:
OBJECTIVES:Indices of copper status, specifically serum copper and ceruloplasmin concentrations and erythrocyte superoxide dismutase activity, and iron status, including serum ferritin, transferrin receptors, hemoglobin and hematocrit, were studied in 27 college-aged females with adequate iron versus low iron stores. METHODS:Serum copper and ceruloplasmin concentrations, erythrocyte superoxide dismutase activity, serum ferritin, transferrin receptors, hemoglobin and hematocrit were studied in 15 females with non-anemic iron depletion before and after five weeks of iron supplementation and in 12 healthy iron-adequate females aged 19 to 28 years. RESULTS:Mean hemoglobin, hematocrit and ferritin concentrations of the control group (144 +/- 11 g/L, 43 +/- 3% and 38 +/- 15 micro g/L, respectively) were significantly higher than those of the iron depleted group prior to supplementation (134 +/- 9 g/L, 39 +/- 2% and 11 +/- 6 micro g/L, respectively). The serum transferrin receptor to serum ferritin ratio was significantly greater for the iron depleted group prior to supplementation (890 +/- 753) versus the control group (151 +/- 61). Mean serum copper and ceruloplasmin concentrations and erythrocyte superoxide dismutase activity of the iron-adequate control group (20.0 +/- 5.7 micro mol/L, 463 +/- 142 mg/L and 527 +/- 124 U/mL, respectively) were significantly higher than those of the iron depleted group (12.4 +/- 3.8 micro mol/L, 350 +/- 108 mg/L and 353 +/- 186 U/mL, respectively) prior to supplementation. Following iron supplementation, hematocrit and ferritin concentrations of the iron depleted group significantly increased to 42 +/- 3% and 26 +/- 8 micro g/L, respectively. Mean serum transferrin receptor concentrations and the serum transferrin receptor to ferritin ratios significantly decreased in the iron depleted group following supplementation (6.1 +/- 1.6 mg/L to 4.6 +/- 1.5 mg/L and 890 +/- 753 to 198 +/- 114, respectively). Iron supplementation also significantly increased the mean serum copper concentration to 14.2 +/- 5.4 micro mol/L and, in subjects with serum ferritin concentrations =12 micro g/L, the mean serum ceruloplasmin concentration. CONCLUSIONS:Non-anemic iron depletion characterized by low iron stores is associated with negative impacts on copper status. Iron supplements improved indices of iron status and serum copper and ceruloplasmin concentrations. Whether the diminished serum copper and ceruloplasmin concentrations and superoxide dismutase activity are associated with free radical damage to iron depleted cells requires further investigation.
journal_name
J Am Coll Nutrjournal_title
Journal of the American College of Nutritionauthors
Gropper SS,Bader-Crowe DM,McAnulty LS,White BD,Keith REdoi
10.1080/07315724.2002.10719253subject
Has Abstractpub_date
2002-12-01 00:00:00pages
545-52issue
6eissn
0731-5724issn
1541-1087journal_volume
21pub_type
杂志文章abstract::No single study or avenue of investigation can resolve the scientific controversies that entangle efforts to determine the effects of specific nutrients on medical conditions. To reach consensus in this area requires a substantial body of plausible, reproducible and consistent data from various investigative approache...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章,评审
doi:10.1080/07315724.1999.10718904
更新日期:1999-10-01 00:00:00
abstract:OBJECTIVE:To examine the efficacy of l-alanyl-l-glutamine ingestion with a commercially available sports drink compared to the sports drink only on time to exhaustion and physiological measures during prolonged endurance exercise. METHODS:Twelve endurance-trained men (23.5 ± 3.7 years; 175.5 ± 5.4 cm; 70.7 ± 7.6 kg) p...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章
doi:10.1080/07315724.2015.1009193
更新日期:2015-01-01 00:00:00
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journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章,随机对照试验
doi:10.1080/07315724.2014.959208
更新日期:2016-05-01 00:00:00
abstract::Vitamin A deficiency is one of the most widespread nutritional deficiencies worldwide. Hundreds of millions of children and tens of millions of women living in Sub-Saharan Africa and Southeast Asia are at particularly high risk of the adverse health consequences associated with this largely preventable condition. Red ...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章,评审
doi:10.1080/07315724.2010.10719845
更新日期:2010-06-01 00:00:00
abstract::The glycemic index (GI) was determined in 36 non-insulin-dependent diabetes mellitus patients who were fed 50 g carbohydrate portions of six Indian conventional foods, including rice, a combination of rice-legume (Bengalgram, peas, and greengram), and a combination of rice-dal (greengram dal and redgram dal -- dal is ...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章
doi:10.1080/07315724.1990.10720411
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abstract:BACKGROUND:The objective of this study was to identify an association among dietary components, iron, and inflammatory status among adolescent girls. METHOD:Dietary information for 85 adolescent girls was collected through food frequency questionnaires. Biomarkers of iron and inflammatory status were analyzed. RESULT...
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pub_type: 杂志文章
doi:10.1080/07315724.2018.1492470
更新日期:2019-03-01 00:00:00
abstract::Magnesium is unique among biological cations. Its volume change from hydrated cation to atomic ion is over an order of magnitude larger than that of any other biological cation. This volume change presents particular problems for a magnesium transport system and suggests that these systems may be significantly differe...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章,评审
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abstract::America is experiencing a major obesity epidemic. The ramifications of this epidemic are immense since obesity is associated with chronic metabolic abnormalities such as insulin resistance, dyslipidemia, and heart disease. Reduced physical activity and/or increased energy intakes are important factors in this epidemic...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章,评审
doi:10.1080/07315724.2005.10719460
更新日期:2005-06-01 00:00:00
abstract:BACKGROUND:C-reactive protein is an acute-phase protein that has been found in association with adiposity and cardiovascular disease risk. In this paper, the objective was to assess the relationship of C-reactive protein to four anthropometric measurements: body mass index, waist-to-height ratio, C index, and waist cir...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章
doi:10.1080/07315724.2017.1338631
更新日期:2017-11-01 00:00:00
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journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章
doi:
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journal_title:Journal of the American College of Nutrition
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doi:10.1080/07315724.2017.1396266
更新日期:2018-05-01 00:00:00
abstract:OBJECTIVE:Baseline characteristics of subjects might be related to the effect of plant stanols on the serum lipoprotein profile. The aim of the study was to examine effects of subjects' baseline characteristics (baseline serum concentrations of lipids and lipoproteins at the start of the study, lathosterol, campesterol...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章
doi:10.1080/07315724.2008.10719683
更新日期:2008-02-01 00:00:00
abstract:OBJECTIVE:This study was launched to determine comparative effects of corn oil (CO), safflower oil (SO), fish oil (FO) and palm oil (PO) on carnitine status and ethanol metabolism in rats. METHODS:Twenty-four male Sprague-Dawley rats (300 g bw) were randomly divided into four groups (n = 6) and fed a semisynthetic die...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章
doi:10.1080/07315724.2002.10719215
更新日期:2002-06-01 00:00:00
abstract::The determination of blood mononuclear cell magnesium content may be a predictor of total body magnesium status. Separation techniques employing Ficoll-Hypaque have been used for this assay; however, Hypaque contains a significant concentration of iodine that may be toxic to the cell membrane and affect the results. W...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章
doi:10.1080/07315724.1983.10719933
更新日期:1983-01-01 00:00:00
abstract:STUDY AIM:To determine the content of the main groups of fatty acids in pastries, confectionery, and potato products, paying special attention to trans fatty acids and the products of fat oxidation and hydrolysis, as factors affecting the safety of consumption. METHODS:A total of 157 products were collected in Poland ...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章
doi:10.1080/07315724.2014.942472
更新日期:2015-01-01 00:00:00
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journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章
doi:10.1080/07315724.1993.10718338
更新日期:1993-08-01 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
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journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章,评审
doi:
更新日期:1997-12-01 00:00:00
abstract:OBJECTIVE:To compare the effect of an experimental viscous fiber (VF) crispy bar on the postprandial glucose, insulin, and C-peptide response in adult subjects with type 2 diabetes to two commercially available control crispy bars. DESIGN:The study was a randomized, double-blinded, three period, crossover study. SETT...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1080/07315724.2006.10719553
更新日期:2006-10-01 00:00:00
abstract::Two-thirds of U.S. adults are overweight. There is an urgent need for effective methods for weight management. A potentially modifiable component of energy expenditure is the thermic effect of food (TEF), the increase in the metabolic rate that occurs after a meal. Evidence suggests that TEF is increased by larger mea...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章,评审
doi:10.1080/07315724.2018.1552544
更新日期:2019-08-01 00:00:00
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journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章
doi:10.1080/07315724.1992.10718202
更新日期:1992-02-01 00:00:00
abstract:OBJECTIVE:The objective of this study was to determine if the consumption of certain foods during the year prior to diagnosis of type 1 diabetes mellitus (T1D) was associated with the risk of developing T1D in children and youth residing in Prince Edward Island, Canada. METHODS:Cases (n = 57) consisted of newly diagno...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章
doi:10.1080/07315724.2008.10719719
更新日期:2008-06-01 00:00:00
abstract:OBJECTIVE:Although it is well known that consumption of whole-grain foods with higher fiber content results in beneficial health effects, most Americans usually prefer bread made with white flour. Changes in bread texture and undesirable intestinal responses have been reported as reasons for avoiding consumption of who...
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:10.1080/07315724.1999.10718893
更新日期:1999-12-01 00:00:00
abstract::Human milk contains two lipases, bile salt-stimulated lipase (BSSL) and lipoprotein lipase (LPL). In the mammary gland, LPL provides long-chain fatty acid for milk fat synthesis. LPL has no known function in milk, but has been implicated in milk fat hydrolysis during cold storage. BSSL may have an important role in in...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章
doi:10.1080/07315724.1989.10720289
更新日期:1989-04-01 00:00:00
abstract::The lack of prevention of noncommunicable diseases (NCDs) has caused an increase in the mortality rate including conditions such as chronic kidney disease (CKD) and liver disease (LD). The high complexity of CKD and LD results in alterations in the metabolism of carbohydrates, proteins, and lipids. One of the changes ...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章
doi:10.1080/07315724.2020.1810171
更新日期:2020-12-10 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:Pelvic radiotherapy induces acute small bowel injury but its effects on nutritional status are unknown. The objective of this study was to prospectively evaluate nutritional, functional and morphologic intestinal changes, after radiotherapy. METHODS:Fifteen patients were studied before and after pelvic irrad...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章
doi:10.1080/07315724.2001.10719161
更新日期:2001-12-01 00:00:00
abstract:OBJECTIVE:The objective of this study was to evaluate the effects of daily dietary supplementation with 1.25 g or 2.5 g of docosahexaenoic (DHA), in the absence of eicosapentaenoic acid (EPA), on serum lipids and lipoproteins in persons with combined hyperlipidemia (CHL) [serum low-density lipoprotein cholesterol (LDL-...
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:10.1080/07315724.1997.10718680
更新日期:1997-06-01 00:00:00
abstract::Objective: This study investigated the effects of leucine supplementation with resistance training (RT) in untrained peri- and postmenopausal women on fat free mass, strength, and select anabolic-related hormones.Method: This was a randomized, double-blind, placebo-controlled trial, in which 36 untrained women were ra...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章
doi:10.1080/07315724.2019.1650675
更新日期:2020-05-01 00:00:00
abstract:OBJECTIVE:This study was designed to compare the metabolizable energy of two starch sources, standard cornstarch and high amylose cornstarch. METHODS:Diets containing 70% amylose (AM) or 70% amylopectin (AP) cornstarches were fed to 10 control and 14 hyperinsulinemic men for 14 weeks. During the last 4 weeks of each p...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章
doi:10.1080/07315724.1996.10718595
更新日期:1996-06-01 00:00:00