OBJECTIVE: IGF-I, a major regulator of childhood growth, is also associated with the risk of several cancers in adult life. Adult height and particularly leg length are also associated with cancer risk. Prepubertal growth is more in leg than trunk length, and it has been suggested that leg length might be a biomarker of childhood IGF-I. However, there is little information on the association between childhood IGF-I and subsequent leg and trunk growth. In this study, we investigated the association of IGF-I measured at 5 and 7-8 yr with growth in height and the components of height (leg and trunk length) from 5 yr to 9-10 yr. PARTICIPANTS: A total of 675 children participated in the Avon Longitudinal Study of Parents and Children. RESULTS: IGF-I was strongly positively associated with growth in height in both sexes. Among boys, IGF-I was strongly associated with subsequent growth in both leg and trunk length, but there was no evidence that IGF-I was more strongly associated with one component of growth than the other. Among girls, IGF-I was strongly positively associated with growth in trunk but not leg length, although there was only weak evidence that these two associations differed in strength (P = 0.058). CONCLUSIONS: These results support the contention that the associations between height and cancer may be mediated by variation in childhood IGF-I. However, they provide no evidence to support the hypothesis that leg length is a better biomarker of childhood IGF-I levels than trunk length.
OBJECTIVE:IGF-I, a major regulator of childhood growth, is also associated with the risk of several cancers in adult life. Adult height and particularly leg length are also associated with cancer risk. Prepubertal growth is more in leg than trunk length, and it has been suggested that leg length might be a biomarker of childhood IGF-I. However, there is little information on the association between childhood IGF-I and subsequent leg and trunk growth. In this study, we investigated the association of IGF-I measured at 5 and 7-8 yr with growth in height and the components of height (leg and trunk length) from 5 yr to 9-10 yr. PARTICIPANTS: A total of 675 children participated in the Avon Longitudinal Study of Parents and Children. RESULTS:IGF-I was strongly positively associated with growth in height in both sexes. Among boys, IGF-I was strongly associated with subsequent growth in both leg and trunk length, but there was no evidence that IGF-I was more strongly associated with one component of growth than the other. Among girls, IGF-I was strongly positively associated with growth in trunk but not leg length, although there was only weak evidence that these two associations differed in strength (P = 0.058). CONCLUSIONS: These results support the contention that the associations between height and cancer may be mediated by variation in childhood IGF-I. However, they provide no evidence to support the hypothesis that leg length is a better biomarker of childhood IGF-I levels than trunk length.
Authors: Rebecca B Little; L Burt Nabors; Jeffrey J Olson; Zachary J Thompson; Carrie M Rozmeski; Renato V LaRocca; Peter A Forsyth; Reid C Thompson; Robert A Oster; Sajeel A Chowdhary; Kathleen M Egan Journal: Cancer Causes Control Date: 2017-03-04 Impact factor: 2.506
Authors: Geoffrey C Kabat; Mimi Y Kim; Jennifer W Bea; Kerstin L Edlefsen; Lucile L Adams-Campbell; Anneclaire J De Roos; Thomas E Rohan Journal: Cancer Epidemiol Date: 2011-08-04 Impact factor: 2.984
Authors: Yani Lu; Jennifer Prescott; Jane Sullivan-Halley; Katherine D Henderson; Huiyan Ma; Ellen T Chang; Christina A Clarke; Pamela L Horn-Ross; Giske Ursin; Leslie Bernstein Journal: Am J Epidemiol Date: 2009-10-12 Impact factor: 4.897
Authors: Luisa Zuccolo; Ross Harris; David Gunnell; Steven Oliver; Jane Athene Lane; Michael Davis; Jenny Donovan; David Neal; Freddie Hamdy; Rebecca Beynon; Jelena Savovic; Richard Michael Martin Journal: Cancer Epidemiol Biomarkers Prev Date: 2008-09 Impact factor: 4.254