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.

Carraro, S., Veronese, N., Bolzetta, F., De Rui, M., Berton, L., Pizzato, S., et al. (2013). Association between dietary folate intake and serum insulin-like growth factor-1 levels in healthy old women. GROWTH HORMONE & IGF RESEARCH, 23(6), 267-271 [10.1016/j.ghir.2013.09.003].

Association between dietary folate intake and serum insulin-like growth factor-1 levels in healthy old women

Veronese, N.
;
2013-01-01

Abstract

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.
2013
Carraro, S., Veronese, N., Bolzetta, F., De Rui, M., Berton, L., Pizzato, S., et al. (2013). Association between dietary folate intake and serum insulin-like growth factor-1 levels in healthy old women. GROWTH HORMONE & IGF RESEARCH, 23(6), 267-271 [10.1016/j.ghir.2013.09.003].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10447/460523
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