PMID- 19153535 OWN - NLM STAT- MEDLINE DCOM- 20090707 LR - 20090227 IS - 1323-8930 (Print) IS - 1323-8930 (Linking) VI - 58 IP - 1 DP - 2009 Mar TI - Age-related changes of transforming growth factor beta1 in Japanese children. PG - 97-102 LID - 10.2332/allergolint.O-07-530 [doi] AB - BACKGROUND: Transforming growth factor beta1 (TGF beta 1) is an important factor in immunomodulation. The expression of TGF beta 1 has been shown to be influenced by the C-509T polymorphism in the TGF beta 1 gene. We investigated age-related changes of plasma TGF beta 1 levels in a birth-cohort study. In addition, the genotypes of the C-509T polymorphism were investigated in allergic and non-allergic subjects. METHODS: Sixty-four neonates who met the following criteria were enrolled in this cohort study: 1) full-term vaginally delivery; 2) underwent DNA polymorphism analysis; and 3) questionnaire forms were filled out by parents at 0, 6 and 14 months of age. The umbilical cord blood at 0 months and peripheral blood at 6, and 14 months were collected. Plasma TGF beta1 levels were measured at 0, 6 and 14 months of age. Genomic DNA was extracted from their umbilical cord blood. The genotype of the subjects was examined for the presence of C-509T. RESULTS: The plasma TGF beta 1 level at 6 months was the highest of the 3 measurements (at 0, 6, and 14 months of age). The TGF beta 1 levels at 14 months in allergic subjects were significantly higher than those in non-allergic subjects (p = 0.03). All subjects with bronchial asthma (n = 3) had the TT genotype of the C-509T polymorphism. CONCLUSIONS: The plasma TGF beta 1 levels change with age. In addition, TGF beta 1 may play a role in the pathogenesis of bronchial asthma. FAU - Morimoto, Masahiro AU - Morimoto M AD - Department of Pediatrics, Graduate School of Medicine, Gifu University, Gifu, Japan. FAU - Matsui, Eiko AU - Matsui E FAU - Kawamoto, Norio AU - Kawamoto N FAU - Sakurai, Satomi AU - Sakurai S FAU - Kaneko, Hideo AU - Kaneko H FAU - Fukao, Toshiyuki AU - Fukao T FAU - Iwasa, Shinichi AU - Iwasa S FAU - Shiraki, Makoto AU - Shiraki M FAU - Kasahara, Kimiko AU - Kasahara K FAU - Kondo, Naomi AU - Kondo N LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20090125 PL - England TA - Allergol Int JT - Allergology international : official journal of the Japanese Society of Allergology JID - 9616296 RN - 0 (Transforming Growth Factor beta1) RN - 37341-29-0 (Immunoglobulin E) SB - IM MH - Age Factors MH - Cohort Studies MH - Female MH - Humans MH - Hypersensitivity/blood MH - Immunoglobulin E/blood MH - Infant MH - Infant, Newborn MH - Male MH - Polymorphism, Single Nucleotide MH - Transforming Growth Factor beta1/*blood/genetics/physiology EDAT- 2009/01/21 09:00 MHDA- 2009/07/08 09:00 CRDT- 2009/01/21 09:00 PHST- 2007/12/03 00:00 [received] PHST- 2008/07/22 00:00 [accepted] PHST- 2009/01/21 09:00 [entrez] PHST- 2009/01/21 09:00 [pubmed] PHST- 2009/07/08 09:00 [medline] AID - S1323-8930(15)30667-5 [pii] AID - 10.2332/allergolint.O-07-530 [doi] PST - ppublish SO - Allergol Int. 2009 Mar;58(1):97-102. doi: 10.2332/allergolint.O-07-530. Epub 2009 Jan 25.