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Modulation of growth factors by growth hormone in children with chronic renal failure. The Southwest Pediatric Nephrology Study Group.

Abstract：

:Anthropometric measurements and circulating growth factors were studied serially in 44 prepubertal children with growth failure and chronic renal failure (GFR = 10 to 40 ml/min/1.73 m2) who were randomized to receive either recombinant human growth hormone (rhGH; N = 30) or no treatment (N = 14). RhGH was given as Nutropin, 0.05 mg/kg/day, and the studies were carried out at baseline and after 3 and 12 months. At baseline, serum insulin-like growth factor binding protein (IGFBP)-1 and -2 levels were, while IGFBP-3 levels were not, higher than those of children with normal renal function. In addition, height SDS at baseline correlated inversely with serum IGFBP-2 levels (r = -0.461, P = 0.0016), but did not correlate significantly with any other factor. After 12 months of study, the 30 children receiving rhGH showed: (i) greater increase in height (9.1 +/- 2.8 vs. 5.5 +/- 1.9 cm, P < 0.0001); (ii) increases in serum levels of IGF-I, IGF-II, free IGF-I, IGFBP-3 and acid labile subunit (ALS); (iii) a greater decrease in serum IGFBP-1 levels; and (iv) no significant difference in serum IGFBP-2 levels, when compared to the 14 control patients. The change in height SDS after 12 months of rhGH (+0.8) in the 30 treated children correlated significantly and positively with serum ALS, IGFBP-3, total IGF, IGF-I, IGF-II and free IGF-I levels measured during treatment. These observations suggest that, in children with growth failure associated with chronic renal failure: (i) IGFBP-2, and not IGFBP-3, is likely to be a growth inhibitor; (ii) rhGH stimulates catch-up growth in part by increasing serum levels of IGF peptides; and (iii) linear growth is influenced by the balance between growth stimulating IGFs and growth inhibitory IGFBPs.

journal_name

Kidney Int

journal_title

Kidney international

authors

Powell DR,Liu F,Baker BK,Hintz RL,Lee PD,Durham SK,Brewer ED,Frane JW,Watkins SL,Hogg RJ

doi

10.1038/ki.1997.268

subject

Has Abstract

pub_date

1997-06-01 00:00:00

pages

1970-9

issue

eissn

0085-2538

issn

1523-1755

pii

S0085-2538(15)60108-9

journal_volume

pub_type

临床试验,杂志文章,多中心研究,随机对照试验

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Modulation of growth factors by growth hormone in children with chronic renal failure. The Southwest Pediatric Nephrology Study Group.