Abstract:
OBJECTIVE:The purpose of this study was to assess the effect of dietary restriction on tissue distribution of vitamin B-6 vitamers and activities of vitamin B-6 metabolizing enzymes in rats. METHODS:Male rats were subjected to a 40% dietary restriction for 10, 20 or 40 weeks. The tissue vitamin B-6 vitamer concentrations and activities of the vitamin B-6 metabolizing enzymes of the animals were determined. RESULTS:The plasma pyridoxal 5'-phosphate (PLP) concentrations of the diet-restricted (DR) rats were comparable to those of the control group at week ten but were significantly lower at weeks 20 and 40. These significantly lower levels of plasma PLP in DR rats might in part be related to lower hepatic pyridoxal kinase and pyridoxamine (pyridoxine) 5'-phosphate oxidase activities. The urinary 4-pyridoxic acid excretion of the DR groups responded to the reduced food intake and were lower at weeks 10 and 20. Tissue levels of PLP were not affected by dietary restriction. In contrast, greater levels of pyridoxamine 5'-phosphate were found in liver, kidney and heart of the DR animals. CONCLUSION:The duration of dietary restriction influenced the distribution of vitamin B-6 vitamers. When plasma PLP is used to evaluate vitamin B-6 status, the length of dietary restriction should be considered.
journal_name
J Am Coll Nutrjournal_title
Journal of the American College of Nutritionauthors
Wei ILdoi
10.1080/07315724.1999.10718842subject
Has Abstractpub_date
1999-04-01 00:00:00pages
144-51issue
2eissn
0731-5724issn
1541-1087journal_volume
18pub_type
杂志文章abstract::Endogenous sulfite is generated as a consequence of the body's normal processing of sulfur-containing amino acids. Sulfites occur as a consequence of fermentation and also occur naturally in a number of foods and beverages. As food additives, sulfiting agents were first used in 1664 and approved in the United States a...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章,评审
doi:10.1080/07315724.1995.10718500
更新日期:1995-06-01 00:00:00
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...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章
doi:10.1080/07315724.2018.1492470
更新日期:2019-03-01 00:00:00
abstract::Anorexia nervosa (AN) can result in extreme malnutrition, and these patients frequently require inordinately large amounts of calories to gain weight during refeeding therapy. Insulin-like growth factor-I (IGF-I) is a polypeptide that mediates many of the anabolic effects of growth hormone. Low levels of IGF-I have be...
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: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 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: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::The effect of varying the amount of dietary magnesium on the development of hypertension in spontaneously hypertensive (SH) rats was investigated with three diets containing 1.05% (H1Mg diet), 0.52% (H2Mg diet), and 0.008% (LMg diet). The control group was given a diet containing a normal amount of magnesium (0.2%). W...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章
doi:10.1080/07315724.1983.10719931
更新日期:1983-01-01 00:00:00
abstract::We prepared ten dogs with intraperitoneal catheters to allow total nutritional support for 30 days by constant infusion of a solution containing 1.5% amino acid, 10% glucose, and 1% lipids at a rate of 4 ml/kg/hr. Seven dogs survived in apparent good health but with a 13.9 +/- 1.3% weight loss. There was no correlatio...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章
doi:10.1080/07315724.1985.10720088
更新日期:1985-01-01 00:00:00
abstract:BACKGROUND:The blood glucose-lowering effects of β-glucan from oats and barley depend on the amounts consumed and their rheological properties. This has been recently challenged with growing evidence that the food matrix may also be an important factor in predicting its physiological response. OBJECTIVE:The objective ...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章,随机对照试验
doi:10.1080/07315724.2013.875366
更新日期:2014-01-01 00:00:00
abstract:BACKGROUND:The Dietary Reference Intakes for Water, Potassium, Sodium, Chloride, and Sulfate, provided extensive tables of data on total water intake, water intake from beverages and water intake from foods; however, very little information was provided about the specific details of these analyses. Reported total water...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章
doi:10.1080/07315724.2007.10719663
更新日期:2007-10-01 00:00:00
abstract::The old adage, "You are what you eat," is not always reliable, as demonstrated in this mixed-longitudinal study of men that began in 1969. Mean values of percent body fat, total body potassium (TBK), and total serum cholesterol (SCHOL) did not show changes that correlated with any studied nutrient from repeated 4-day ...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章
doi:10.1080/07315724.1992.10718265
更新日期:1992-12-01 00:00:00
abstract::Dietary intake surveys of rural and urban communities in three Pacific Island countries were conducted using an adjusted 24-hour dietary recall method. Dietary survey samples were drawn from noncommunicable disease surveys of Melanesians and Indians in Fiji, Micronesians in Kiribati and Melanesians in Vanuatu. Compari...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章
doi:10.1080/07315724.1992.10718229
更新日期:1992-06-01 00:00:00
abstract:BACKGROUND:Epidemiological studies demonstrate an inverse relation between dietary flavonoid intake and cardiovascular risk. Recent studies with flavonoid-containing beverages suggest that the benefits of these nutrients may relate, in part, to improved endothelial function. OBJECTIVE:We hypothesized that dietary supp...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章,随机对照试验
doi:10.1080/07315724.2007.10719590
更新日期:2007-04-01 00:00:00
abstract:OBJECTIVES:To examine if and how ready-to-eat cereals (RTEC) contribute to the quality of the diet of children, adolescents and young adults in a Mediterranean setting. METHODS:A random sample of 3534 subjects aged 2 to 24 years in Spain was studied. Food and nutrient intakes were determined by a 24 hour recall. RTEC ...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章
doi:10.1080/07315724.2006.10719524
更新日期:2006-04-01 00:00:00
abstract::Coronary heart disease (CHD) is the leading cause of death in most developed nations and is rapidly increasing in prevalence in developing countries. Death rates from cardiovascular disease exceed 1 million annually in the United States and account for the largest disease-related cost to health with total costs estima...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章,meta分析
doi:10.1080/07315724.2000.10718963
更新日期:2000-06-01 00:00:00
abstract:BACKGROUND:It is unclear whether other ginseng sources can replicate the glycemic-lowering efficacy observed previously with American ginseng and whether ginsenosides are mediators. We assessed the effect of eight popular ginseng types on postprandial plasma glucose (PG) and insulin (PI) indices, linking effects to gin...
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:10.1080/07315724.2004.10719368
更新日期:2004-06-01 00:00:00
abstract::Fat content and fatty acid (FA) composition of 100 common items in 17 food categories from the Canadian retail market were determined. Of these, 52 samples were made from partially hydrogenated fat. Their fat (in parentheses) and trans FA levels were as follows: breads (3.7% fat) 15.7%, hamburger buns (5.5% fat) 26.3%...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章
doi:10.1080/07315724.1993.10718356
更新日期:1993-12-01 00:00:00
abstract:OBJECTIVE:Ingesting a mix of glucose and fructose during exercise increases exogenous carbohydrate oxidation while minimizing gastrointestinal (GI) distress. Several studies have suggested that a glucose-to-fructose ratio of 1.2:1 to 1:1 is optimal. No studies have quantified saccharides consumed during a nonsimulated ...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章
doi:10.1080/07315724.2014.996830
更新日期:2015-01-01 00:00:00
abstract:OBJECTIVE:Iron deficiency is the most common nutrient deficiency in the world. While deficiency can often be resolved through dietary supplementation with iron, adverse events are common and frequently preclude compliance. The objective of this study was to determine whether a food-derived dietary supplement containing...
journal_title:Journal of the American College of Nutrition
pub_type: 临床试验,杂志文章
doi:10.1080/07315724.2018.1427158
更新日期:2018-05-01 00:00:00
abstract:OBJECTIVE:To determine if a relationship exists between blood glucose control and variability in nutrient intake from day-to-day in subjects with type 1 diabetes. METHODS:Two three-day diet records and one measurement of glycated hemoglobin (HbA1c) were obtained from 272 subjects with type 1 diabetes treated with a mi...
journal_title:Journal of the American College of Nutrition
pub_type: 临床试验,杂志文章,多中心研究
doi:10.1080/07315724.1999.10718858
更新日期:1999-06-01 00:00:00
abstract::To assess whether antioxidants may reduce the risk of cancer, we reviewed the epidemiologic literature from 1985 through 1993. We assessed the separate relationships of three antioxidants (carotenoids, vitamin C, and vitamin E) with six sites of cancer (lung, upper aerodigestive tract, uterine cervix, colon, breast, p...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章,评审
doi:10.1080/07315724.1995.10718532
更新日期:1995-10-01 00:00:00
abstract:UNLABELLED:Many publications indicate the beneficial effect of n-6 polyunsaturated fatty acids (n-6 PUFAs) in the control of coronary heart disease and diabetes, although the mechanism is not clear. Some of our previous results suggest that, in contrast to other lipids, n-6 PUFAs could have a permissive effect on carbo...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章
doi:10.1080/07315724.1987.10720202
更新日期:1987-10-01 00:00:00
abstract:BACKGROUND:Foods that enhance satiety can help consumers to resist environmental cues to eat and help adherence to calorie restriction. The objective of this study was to compare the effect of 2 oat-based breakfast cereals on appetite, satiety, and food intake. METHODS:Forty-eight healthy individuals, 18 years of age ...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章,随机对照试验
doi:10.1080/07315724.2015.1032442
更新日期:2016-01-01 00:00:00
abstract:OBJECTIVE:Vegetarians may be at risk of certain nutrient deficiencies, particularly vitamin B-12. Vitamin B-12 deficiency may increase plasma homocysteine concentration and thus may potentially increase the risk of cardiovascular disease in vegetarians. The purpose of this study was to assess and compare plasma homocys...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章
doi:10.1080/07315724.2010.10719811
更新日期:2010-02-01 00:00:00
abstract:OBJECTIVE:The primary aim of this study was to assess the effects of dietary protein intake on energy restriction (ER)-induced changes in body mass and body composition. Clinical markers of metabolic and cardiovascular diseases were also measured. DESIGN:54 postmenopausal women, age 58 +/- 2 y, body mass index 29.6 +/...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章,随机对照试验
doi:10.1080/07315724.2007.10719600
更新日期:2007-04-01 00:00:00
abstract::Zinc is an essential trace element required for RNA and DNA synthesis and the function of over 200 zinc metalloenzymes. After surgery or trauma, the serum zinc concentration usually decreases. The magnitude and duration of this hypozincemia after thermal injury are unclear, as are mechanisms for this hypozincemia. In ...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章,评审
doi:10.1080/07315724.1988.10720222
更新日期:1988-02-01 00:00:00
abstract:OBJECTIVES:Relating food diversity, quality, and intake is one of the key aspects in understanding household food security. This paper aimed at marying food intake and quality, both being measurement for food security. METHODS:A household food consumption survey (n=200) exploring food diversity, quality of foods, and ...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章
doi:10.1080/07315724.2013.797859
更新日期:2013-01-01 00:00:00
abstract:OBJECTIVE:The link between stress-related increases in inflammatory markers, hepcidin, and iron status are poorly understood, especially in developing countries like India. The aim of the study was to examine the relationship between adolescent life-event stress (ALES), inflammatory markers, and its association with he...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章
doi:10.1080/07315724.2013.875417
更新日期:2014-01-01 00:00:00
abstract:OBJECTIVE:The salt (NaCl) content of bread, obtained from Belgium and 25 other regions or countries worldwide, was analyzed to evaluate the importance of bread as a source of dietary salt in a population. METHODS:A total of 1166 dried bread samples were analyzed using a hot HCl extraction technique followed by flame p...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章
doi:10.1080/07315724.1994.10718392
更新日期:1994-04-01 00:00:00
abstract:OBJECTIVES:The sensitivity of one plasma and two urinary methods to assess zinc absorption after oral dosing were compared over the dose range of 10 to 100 mg. METHODS:Eleven healthy subjects participated in this four-way crossover design study. After an overnight fast, the subjects received a single oral dose of zinc...
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:10.1080/07315724.1996.10718568
更新日期:1996-02-01 00:00:00