TY - JOUR
T1 - Effect of dietary patterns on serum homocysteine
T2 - Results of a randomized, controlled feeding study
AU - Appel, Lawrence J.
AU - Miller, Edgar R.
AU - Jee, Sun Ha
AU - Stolzenberg-Solomon, Rachael
AU - Lin, Pao Hwa
AU - Erlinger, Thomas
AU - Nadeau, Marie R.
AU - Selhub, Jacob
PY - 2000/8/22
Y1 - 2000/8/22
N2 - Background - Elevated blood levels of homocysteine are associated with an increased risk of atherosclerotic cardiovascular disease. Although numerous studies have assessed the impact of vitamin supplements on homocysteine, the effect of dietary patterns on homocysteine has not been well studied. Methods and Results - During a 3-week run-in, 118 participants were fed a control diet, low in fruits, vegetables, and dairy products, with a fat content typical of US consumption. During an 8-week intervention phase, participants were then fed 1 of 3 randomly assigned diets: the control diet, a diet rich in fruits and vegetables but otherwise similar to control, or a combination diet rich in fruits, vegetables, and low-fat dairy products and reduced in saturated and total fat. Between the end of run-in and intervention periods, mean change in homocysteine was +0.46 μmol/L in the control diet, +0.21 μmol/L in the fruits and vegetables diet (P=0.47 compared with control), and -0.34 μmol/L in the combination diet (P=0.03 compared with control, P=0.12 compared with the fruits and vegetables diet). In multivariable regression models, change in homocysteine was significantly and inversely associated with change in serum folate (P=0.03) but not with change in serum vitamin B12 (P=0.64) or pyridoxal 5' phosphate, the coenzyme form of vitamin B6 (P=0.83). Conclusions - Modification of dietary patterns can have substantial effects on fasting levels of total serum homocysteine. These results provide additional insights into the mechanisms by which diet might influence the occurrence of atherosclerotic cardiovascular disease.
AB - Background - Elevated blood levels of homocysteine are associated with an increased risk of atherosclerotic cardiovascular disease. Although numerous studies have assessed the impact of vitamin supplements on homocysteine, the effect of dietary patterns on homocysteine has not been well studied. Methods and Results - During a 3-week run-in, 118 participants were fed a control diet, low in fruits, vegetables, and dairy products, with a fat content typical of US consumption. During an 8-week intervention phase, participants were then fed 1 of 3 randomly assigned diets: the control diet, a diet rich in fruits and vegetables but otherwise similar to control, or a combination diet rich in fruits, vegetables, and low-fat dairy products and reduced in saturated and total fat. Between the end of run-in and intervention periods, mean change in homocysteine was +0.46 μmol/L in the control diet, +0.21 μmol/L in the fruits and vegetables diet (P=0.47 compared with control), and -0.34 μmol/L in the combination diet (P=0.03 compared with control, P=0.12 compared with the fruits and vegetables diet). In multivariable regression models, change in homocysteine was significantly and inversely associated with change in serum folate (P=0.03) but not with change in serum vitamin B12 (P=0.64) or pyridoxal 5' phosphate, the coenzyme form of vitamin B6 (P=0.83). Conclusions - Modification of dietary patterns can have substantial effects on fasting levels of total serum homocysteine. These results provide additional insights into the mechanisms by which diet might influence the occurrence of atherosclerotic cardiovascular disease.
KW - Metabolism
KW - Nutrition
KW - Risk factors
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U2 - 10.1161/01.CIR.102.8.852
DO - 10.1161/01.CIR.102.8.852
M3 - Article
C2 - 10952952
AN - SCOPUS:0034702902
SN - 0009-7322
VL - 102
SP - 852
EP - 857
JO - Circulation
JF - Circulation
IS - 8
ER -