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 dibasic potassium phosphate (dibasic regimen) on calcium phosphate solubility in 5 amino acid products, and to determine whether solubility differences observed in these products can be explained by buffering capacity. METHODS:TPN solutions were prepared according to standard clinical practice. The following amino acid products were used at 3% concentrations: Primene, Vamin N, TrophAmine, Aminosyn-PF, and Travasol. Dextrose 10%, standard electrolytes, heparin, vitamins and trace elements were added. Calcium (as gluconate) and phosphate (as monobasic or dibasic regimen) were added in one-to-one molar ratios from 0-45 mmol/L. Solutions were inspected macroscopically and microscopically for precipitation under three conditions: immediately, 24 h after preparation at room temperature, and 3 h later in a 37 degrees C water bath. Buffering capacity was determined for each amino acid product by titrating with standardized 0.1 M NaOH. RESULTS:Variations in Ca:P solubility and buffer capacity exist between amino acid solutions. With Primene and Vamin no macroscopic or microscopic precipitation was detected up to 45 mmol/L using monobasic regimen, compared to 25 mmol/L using dibasic regimen with Trophamine. Buffer capacity did not account for the solubility differences observed between the five amino acid products, which were related to the pH of the final solution. CONCLUSIONS:These data will allow clinicians to double the current concentrations of calcium and phosphate in neonatal TPN solutions using monobasic regimen. Although this is particularly relevant to situations when fluid intake is restricted, the effect of the acid load needs to be investigated in extremely low birth weight infants.
journal_name
J Am Coll Nutrjournal_title
Journal of the American College of Nutritionauthors
Wong JC,McDougal AR,Tofan M,Aulakh J,Pineault M,Chessex Pdoi
10.1080/07315724.2006.10719517subject
Has Abstractpub_date
2006-02-01 00:00:00pages
70-7issue
1eissn
0731-5724issn
1541-1087pii
25/1/70journal_volume
25pub_type
杂志文章abstract::Following a lymphocyte separation technique, the lymphocyte content of magnesium and potassium was determined by atomic absorption spectroscopy in 28 subjects. Simultaneously, skeletal muscle biopsies were obtained by a percutaneous technique and analyzed for magnesium and potassium. In this study there was not signif...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章
doi:10.1080/07315724.1985.10720104
更新日期:1985-01-01 00:00:00
abstract::Histidemia, first described by Ghadimi in 1961, is caused by a defect in histidase. The defect results in elevated urinary excretion of histidine and its transamination products, and in high blood histidine. Blood histidine levels in histidinemic patients range from 290 to 1420 microM (normal 70-120 microM). The clini...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章,评审
doi:10.1080/07315724.1993.10718291
更新日期:1993-04-01 00:00:00
abstract::To determine if the lower plasma ascorbic acid concentrations observed in males compared to females, and in the elderly in general, might be due to differences in renal clearances of ascorbic acid, tubular maximum reabsorptions (TmAA) and renal thresholds for ascorbic acid were determined on older (10 male, 10 female,...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章
doi:10.1080/07315724.1993.10718349
更新日期:1993-10-01 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:OBJECTIVE:Although some earlier studies have indicated an association between dietary/urinary sodium and bone mass density (BMD), bone mass content (BMC), and the risk of osteoporosis (OS), findings are still conflicting. The aim of this study was to summarize the relation of dietary/urinary sodium with BMD, BMC, and t...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章,meta分析
doi:10.1080/07315724.2018.1431161
更新日期:2018-08-01 00:00:00
abstract:OBJECTIVE:The purpose of this study was to investigate the nutrient intakes of people with mood disorders. METHOD:A cross-sectional survey using 3-day food records was carried out in 97 adults with bipolar or major depressive disorder to compare nutrient intakes with Dietary Reference Intakes and British Columbia Nutr...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章
doi:10.1080/07315724.2011.10720001
更新日期:2011-12-01 00:00:00
abstract:OBJECTIVE:Sitosterolemia is a genetic disorder characterized by an increased plasma plant sterol concentration due to enhanced sterol absorption coupled with reduced steroid excretion. The purpose of the present investigation was two-fold; first to assess the effects of a "basal" low sitosterol metabolic diet on plasma...
journal_title:Journal of the American College of Nutrition
pub_type: 临床试验,杂志文章
doi:
更新日期:1997-12-01 00:00:00
abstract:OBJECTIVE:In Sprague-Dawley rats (SD), we compared two categories of natural dietary supplements that influence carbohydrate (CHO) metabolism via different basic mechanisms to ameliorate insulin resistance (IR) and elevated blood pressure (BP) associated with heavy sugar/starch consumption. Two dietary supplements (bea...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章
doi:10.1080/07315724.2013.770335
更新日期:2013-01-01 00:00:00
abstract:OBJECTIVE:The aim of this work was to determine if dysprosium chloride (DyCl(3)) is a suitable nonabsorbable marker for studies of labeled-triglyceride excretion in cystic fibrosis patients allowing excretion to be determined accurately after analysis of one or two stools. METHODS:A series of 66 absorption studies wer...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章
doi:10.1080/07315724.2003.10719321
更新日期:2003-10-01 00:00:00
abstract::The paper "Combating COVID-19 and Building Immune Resilience: A Potential Role for Magnesium Nutrition?" by TC Wallace, which was published in the Journal of the American College of Nutrition highlights the importance of adequate magnesium (Mg) supply in relation to COVID-19. Wallace notes that Mg deficiency is associ...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章
doi:10.1080/07315724.2020.1816230
更新日期:2020-10-16 00:00:00
abstract:OBJECTIVE:Food frequency questionnaires (FFQs) estimate habitual dietary intake and require evaluation in populations of interest in order to determine accuracy. Thus, the purpose of this study was to determine agreement between circulating biomarkers and FFQ estimated dietary intake in a military population consuming ...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章
doi:10.1080/07315724.2018.1490215
更新日期:2019-02-01 00:00:00
abstract:OBJECTIVE:Yam (Dioscorea) has been used to treat menopausal symptom folklorically. This study was to investigate the effects of yam ingestion on lipids, antioxidant status, and sex hormones in postmenopausal women. METHODS:Twenty-four apparently healthy postmenopausal women were recruited to replace their staple food ...
journal_title:Journal of the American College of Nutrition
pub_type: 临床试验,杂志文章
doi:10.1080/07315724.2005.10719470
更新日期:2005-08-01 00:00:00
abstract::To study the role of diet as a risk factor for coronary heart disease (CHD), 463 adults (25-65 years, 419 males) at risk of or with CHD were assigned to group A (n = 231) receiving a cardiovasoprotective diet or group B (n = 232) receiving a normal diet in a randomized, single-blind fashion. Age, sex, risk factors and...
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:10.1080/07315724.1992.10718242
更新日期:1992-08-01 00:00:00
abstract:OBJECTIVE:The Health Focus National Study of Public Attitudes and Actions Toward Healthy Foods is conducted every two years to identify current issues in consumer health and nutrition behavior and attitudes, to assess the trends in consumer priorities and to develop an understanding of where consumers are headed in the...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章
doi:10.1080/07315724.2000.10718973
更新日期:2000-10-01 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:OBJECTIVE:To compare oxidative stress and LDL oxidizability in postmenopausal women with and without HRT. METHODS:In a cross sectional study, two groups of women, with or without combined per os HRT (1.5-2 mg estrogen associated with 10 mg dydrogesteron), were age and duration of menopause matched. Women were recruite...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章
doi:10.1080/07315724.2002.10719231
更新日期:2002-08-01 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::Malnutrition has been often suggested as contributing to both the high incidence of hip fracture in elderly people and its complications. In a recent prospective controlled randomized study, the clinical outcome of elderly patients with osteoporotic fracture of the proximal femur (hip fracture) improved by giving a si...
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:10.1080/07315724.1992.10718256
更新日期:1992-10-01 00:00:00
abstract:OBJECTIVE:The objective of this study was to determine whether free-living individuals diagnosed with diabetes, dyslipidemia, cardiovascular disease or hypertension follow standard dietary recommendations for treatment of these diet-modifiable disorders. METHODS:Data are from 1,782 adult men and women who completed an...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章
doi:10.1080/07315724.2002.10719241
更新日期:2002-10-01 00:00:00
abstract:OBJECTIVES:To measure bone mineral density (BMD) and to screen for early biochemical abnormalities in bone mineral metabolism in the first five years of natural menopause when estrogen and calcium supplement are not used and in the absence of major confounding variables. SETTING:Two homogeneous and comparable groups (...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章
doi:10.1080/07315724.2005.10719485
更新日期:2005-10-01 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::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: We assessed the acute effect of beetroot extract intake on cardiovascular and autonomic recovery subsequent to strength exercise.Methods: This is a crossover, randomized, double-blind and placebo-controlled trial. We assessed 16 subjects but only 12 healthy male adults completed the two protocols in two ran...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章
doi:10.1080/07315724.2020.1774441
更新日期:2020-05-29 00:00:00
abstract:OBJECTIVE:The increased prevalence of obesity has resulted in the current high popularity of dietary supplements marketed as weight reducing agents. The efficacy of most of these supplements is not established. The soluble fiber, glucomannan, is often recommended for weight loss. The aim of this systematic review is to...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章,meta分析,评审
doi:10.1080/07315724.2014.870013
更新日期:2014-01-01 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::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:OBJECTIVE:To evaluate the effects of an egg breakfast on lunchtime energy intake in children (age 4-6 years) and adolescents (age 14-17 years). METHODS:In 2 randomized crossover trials, participants received either an egg breakfast or an isocaloric bagel breakfast. In both trials, subsequent lunchtime energy intake wa...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章,随机对照试验
doi:10.1080/07315724.2014.942471
更新日期:2015-01-01 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:OBJECTIVES:Cisplatin (CIS) is an effective antitumor drug. However, its clinical use is limited due to nephrotoxicity. l-Carnitine and vitamin C are both natural antioxidant that can be obtained from diets. This study investigated the effects of l-carnitine and/or vitamin C in rats against cisplatin-induced nephrotoxic...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章
doi:10.1080/07315724.2017.1409139
更新日期:2018-07-01 00:00:00
abstract:OBJECTIVES:These studies investigated the ability of a hydroxychalcone from cinnamon to function as an insulin mimetic in 3T3-LI adipocytes. METHODS:Comparative experiments were performed with the cinnamon methylhydroxychalcone polymer and insulin with regard to glucose uptake, glycogen synthesis. phosphatidylinositol...
journal_title:Journal of the American College of Nutrition
pub_type: 杂志文章
doi:10.1080/07315724.2001.10719053
更新日期:2001-08-01 00:00:00