Plasma pyridoxal phosphate and pyridoxic acid and their relationship to plasma homocysteine in a representative sample of British men and women aged 65 years and over

aging blood blood composition cardiovascular diseases coenzimas coenzyme coenzymes composition du sang diet dieta elderly enfermedades cardiovasculares envejecimiento estado nutricional genre humain homocisteina homocysteine inflammation maladie cardiovasculaire mankind metabolism metabolisme metabolismo nutritional status piridoxina pyridoxine reino unido riesgo risk risk factors risque sang sangre tercera edad united kingdom vieillissement vitamin b12 vitamina b12 vitamine b12