Search results for "Vitamin B 6"

showing 3 items of 3 documents

Are the Recommended Dietary Allowances for Vitamins Appropriate for Elderly People?

2015

Background: An adequate vitamin intake is essential for a good nutritional status, especially in older women, who are more sensitive to nutritional deficiencies. The American, European and Italian Recommended Dietary Allowances (RDAs) derive mainly from studies on adults, and it is not clear whether they also apply to elderly people. Comparing the RDAs with the actual vitamin intake of a group of healthy older women could help to clarify the real needs of elderly people. Objective: Our aim was to compare the American, European, and Italian RDAs with the actual vitamin intake of a group of healthy older women. Design: This was a cross-sectional study. Participants: The study included 286 hea…

Dietary FiberRiboflavinRiboflavinAscorbic AcidRecommended Dietary AllowancesPantothenic AcidBody Mass Indexchemistry.chemical_compoundPantothenic acid80 and overMicronutrientMicronutrientsMicronutrient; Older people; Recommended Dietary Allowances (RDA); Vitamins; Aged; Aged 80 and over; Ascorbic Acid; Body Mass Index; Body Weight; Cross-Sectional Studies; Dietary Carbohydrates; Dietary Fats; Dietary Fiber; Dietary Proteins; Energy Intake; Female; Folic Acid; Humans; Micronutrients; Nutrition Assessment; Nutritional Status; Pantothenic Acid; Portion Size; Riboflavin; Vitamin A; Vitamin B 12; Vitamin B 6; Recommended Dietary Allowances; Food Science; Nutrition and Dietetics; Medicine (all)Vitamin AAged 80 and overNutrition and DieteticsMedicine (all)General MedicineVitaminsMicronutrientVitamin B 12FemaleDietary ProteinsVitaminNutritional Statusvitamis elderlyFolic AcidEnvironmental healthmedicineRecommended Dietary Allowances (RDAs)Dietary CarbohydratesHumansAgedRecommended Dietary Allowances (RDA)business.industryBody WeightPortion SizeRetinol Equivalentmedicine.diseaseAscorbic acidDietary FatsVitamin B 6MalnutritionCross-Sectional StudiesNutrition AssessmentchemistryOlder peoplebusinessEnergy IntakeBody mass indexFood Science
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Hyperhomocysteinemia and Cardiovascular Risk: Effect of Vitamin Supplementation in Risk Reduction

2010

Abstract Homocysteine is a sulfur-containing aminoacid produced during metabolism of methionine. Since 1969 the relationship between altered homocysteine metabolism and both coronary and peripheral atherotrombosis has been known; in recent years experimental evidences have shown that elevated plasma levels of homocysteine are associated with an increased risk of atherosclerosis and cardiovascular ischemic events. Several mechanisms by which elevated homocysteine impairs vascular function have been proposed, including impairment of endothelial function, production of Reactive Oxygen Species (ROS) and consequent oxidation of low-density lipids. Folic acid and B vitamins, required for remethyl…

Hyperhomocysteinemiamedicine.medical_specialtyHomocysteineHyperhomocysteinemiachemistry.chemical_compoundFolic AcidRisk FactorsInternal medicinehomocysteine MTHFR cardiovascular disease folate B vitaminsmedicineAnimalsHumansPharmacology (medical)General Pharmacology Toxicology and PharmaceuticsVitamin supplementationchemistry.chemical_classificationReactive oxygen speciesMethioninebusiness.industryRisk effectGeneral MedicineMetabolismmedicine.diseaseVitamin B 6Vitamin B 12B vitaminsEndocrinologychemistryCardiovascular DiseasesVitamin B ComplexbusinessRisk Reduction BehaviorCurrent Clinical Pharmacology
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Effects of polymorphisms in endothelial nitric oxide synthase and folate metabolizing genes on the concentration of serum nitrate, folate, and plasma…

2015

Abstract Objectives A number of studies have explored the effects of dietary nitrate on human health. Nitrate in the blood can be recycled to nitric oxide, which is an essential mediator involved in many important biochemical mechanisms. Nitric oxide is also formed in the body from l -arginine by nitric oxide synthase. The aim of this study was to investigate whether genetic polymorphisms in endothelial nitric oxide synthase (eNOS) and genes involved in folate metabolism affect the concentration of serum nitrate, serum folate, and plasma total homocysteine in healthy individuals after folic acid supplementation. Methods In a randomized double-blind, crossover study, participants were given …

medicine.medical_specialtyArginineGenotyping TechniquesNitric Oxide Synthase Type IIIEndocrinology Diabetes and MetabolismArgininePolymorphism Single NucleotideNitric oxidechemistry.chemical_compoundFolic AcidNitrateDouble-Blind MethodGene FrequencyEnosInternal medicinemedicineDietary CarbohydratesHumansHomocysteineNutrition and DieteticsCross-Over StudiesNitratesbiologyDose-Response Relationship DrugDecreased Concentrationbiology.organism_classificationCrossover studyDietary FatsHealthy VolunteersVitamin B 6Nitric oxide synthaseEndocrinologychemistryBiochemistryMethylenetetrahydrofolate reductaseDietary Supplementsbiology.proteinDietary ProteinsNutrition (Burbank, Los Angeles County, Calif.)
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