TY - JOUR
T1 - Association between dietary folate intake and serum insulin-like growth factor-1 levels in healthy old women
AU - Veronese, Nicola
AU - Manzato, Enzo
AU - Bolzetta, Francesco
AU - Veronese, Nicola
AU - Pizzato, Simona
AU - De Rui, Marina
AU - Carraro, Sara
AU - Berton, Linda
AU - De Ronch, Irene
AU - Toffanello, null
AU - Miotto, null
AU - Coin, null
AU - Sergi, Giuseppe
PY - 2013
Y1 - 2013
N2 - Objective: High serum levels of insulin-like growth factor-1 (IGF-1) seem to coincide with higher rates of some types of cancer and the risk of all-cause mortality in old people. Eating vegetables seems to reduce IGF-1 levels because they are rich in micronutrients such as vitamins. This study investigates the possible association between vitamin intake and IGF-1 levels in a representative group of healthy elderly women with Mediterranean dietary habits. Design: This cross-sectional study included 124 healthy women with a mean age of 71.3±4.2years and a mean body mass index (BMI) of 27.37±3.48kg/m2 attending a mild fitness program twice a week at public gyms in Padova. The main parameters considered were IGF-1 (measured by chemiluminescence) and diet, assessed on the basis of a 3-day record and a questionnaire on the frequency with which they usually ate certain foods. Results: The mean IGF-1 level for the sample as a whole was 136.2 ± 38.9. μg/l, and was significantly lower in women with a higher folate intake (p = 0.04). On simple linear analysis, the vitamins found associated with serum IGF-1 levels were: folates (r: -0.25; p = 0.003); vitamin E (r: -0.21; p = 0.01); vitamin D (r: - 0.17; p = 0.03); and riboflavin (r: -0.16; p = 0.03). After removing the effect of calorie, protein, carbohydrate and fat intake, and other known potential confounders (age, BMI, alcohol intake), only folate intake correlated with IGF-1 levels (r = -0.17; p = 0.04). Conclusion: A folate-rich diet could have the effect of lowering circulating IGF-1 levels in elderly women. © 2013 Elsevier Ltd.
AB - Objective: High serum levels of insulin-like growth factor-1 (IGF-1) seem to coincide with higher rates of some types of cancer and the risk of all-cause mortality in old people. Eating vegetables seems to reduce IGF-1 levels because they are rich in micronutrients such as vitamins. This study investigates the possible association between vitamin intake and IGF-1 levels in a representative group of healthy elderly women with Mediterranean dietary habits. Design: This cross-sectional study included 124 healthy women with a mean age of 71.3±4.2years and a mean body mass index (BMI) of 27.37±3.48kg/m2 attending a mild fitness program twice a week at public gyms in Padova. The main parameters considered were IGF-1 (measured by chemiluminescence) and diet, assessed on the basis of a 3-day record and a questionnaire on the frequency with which they usually ate certain foods. Results: The mean IGF-1 level for the sample as a whole was 136.2 ± 38.9. μg/l, and was significantly lower in women with a higher folate intake (p = 0.04). On simple linear analysis, the vitamins found associated with serum IGF-1 levels were: folates (r: -0.25; p = 0.003); vitamin E (r: -0.21; p = 0.01); vitamin D (r: - 0.17; p = 0.03); and riboflavin (r: -0.16; p = 0.03). After removing the effect of calorie, protein, carbohydrate and fat intake, and other known potential confounders (age, BMI, alcohol intake), only folate intake correlated with IGF-1 levels (r = -0.17; p = 0.04). Conclusion: A folate-rich diet could have the effect of lowering circulating IGF-1 levels in elderly women. © 2013 Elsevier Ltd.
UR - http://hdl.handle.net/10447/460523
M3 - Article
VL - 23
SP - 267
EP - 271
JO - GROWTH HORMONE & IGF RESEARCH
JF - GROWTH HORMONE & IGF RESEARCH
SN - 1096-6374
ER -