{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,12]],"date-time":"2026-05-12T22:42:40Z","timestamp":1778625760911,"version":"3.51.4"},"reference-count":52,"publisher":"Wiley","issue":"6","license":[{"start":{"date-parts":[[2004,11,4]],"date-time":"2004-11-04T00:00:00Z","timestamp":1099526400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Clinical Endocrinology"],"published-print":{"date-parts":[[2004,12]]},"abstract":"<jats:title>Summary<\/jats:title><jats:p><jats:bold>OBJECTIVE\u2002<\/jats:bold> Adult survivors of childhood acute lymphoblastic leukaemia (ALL) often exhibit GH deficiency (GHD), due to prophylactic cranial radiotherapy (CRT). It is not known whether the observed risk for adiposity in these patients is associated with impaired insulin sensitivity and whether the insulin sensitivity is affected by GH replacement therapy.<\/jats:p><jats:p><jats:bold>SUBJECTS AND DESIGN\u2002<\/jats:bold> Eleven patients with GHD (median age 29\u00a0years), previously given prophylactic CRT for ALL, and 11 sex\u2010, age\u2010 and body mass index (BMI)\u2010matched controls were investigated with bioimpedance analysis (BIA) and analysis of serum leptin, serum free fatty acids (FFA) and serum insulin. Insulin sensitivity was measured by a euglycaemic\u2013hyperinsulinaemic clamp technique (IS\u2010clamp). Moreover, the effects of 12\u00a0months of individually titrated GH treatment (median dose 0\u00b75\u00a0mg\/day) on these parameters were investigated.<\/jats:p><jats:p><jats:bold>RESULTS\u2002<\/jats:bold> At baseline, the patients had lower fat free mass (FFM) (<jats:italic>P<\/jats:italic>\u00a0=\u00a00\u00b7003), higher percentage fat mass (FM) (<jats:italic>P<\/jats:italic>\u00a0=\u00a00\u00b705), serum insulin (<jats:italic>P<\/jats:italic>\u00a0=\u00a00\u00b702) and serum leptin\/kg FM (<jats:italic>P\u00a0=<\/jats:italic>\u00a00\u00b701) than controls. The patients had a tendency towards impaired IS\u2010clamp (<jats:italic>P<\/jats:italic>\u00a0=\u00a00\u00b706), which disappeared after correction for body composition (IS\u2010clamp\/kg FFM; <jats:italic>P<\/jats:italic>\u00a0&gt;\u00a00\u00b75). In the patients, time since CRT was positively correlated with percentage FM (<jats:italic>r<\/jats:italic>\u00a0= 0\u00b770, <jats:italic>P<\/jats:italic>\u00a0=\u00a00\u00b702), and there was an independent negative association between serum FFA and IS\u2010clamp (<jats:italic>P<\/jats:italic>\u00a0=\u00a00\u00b705). Twelve months of GH treatment increased serum IGF\u2010I (<jats:italic>P<\/jats:italic>\u00a0=\u00a00\u00b7003) and FFM (<jats:italic>P<\/jats:italic>\u00a0=\u00a00\u00b702) and decreased percentage FM (<jats:italic>P<\/jats:italic>\u00a0=\u00a00\u00b703), but no significant changes were seen in serum leptin\/kg FM, serum FFA, FFA\u2010clamp, serum insulin or IS\u2010clamp (all, <jats:italic>P<\/jats:italic>\u00a0\u2265\u00a00\u00b72).<\/jats:p><jats:p><jats:bold>CONCLUSIONS\u2002<\/jats:bold> Young adult survivors of childhood ALL with GHD had increased fat mass, hyperleptinaemia and impaired insulin sensitivity, which could be a consequence of radiation\u2010induced impairment of GH secretion or mediated by other hypothalamic dysfunctions, such as leptin resistance or other unknown factors, affected by CRT. Twelve months of individualized GH replacement therapy led to positive effects on body composition, but the hyperleptinaemia, hyperinsulinaemia and the impaired insulin sensitivity remained unchanged.<\/jats:p>","DOI":"10.1111\/j.1365-2265.2004.02149.x","type":"journal-article","created":{"date-parts":[[2004,12,3]],"date-time":"2004-12-03T09:34:20Z","timestamp":1102066460000},"page":"683-691","source":"Crossref","is-referenced-by-count":34,"title":["Survivors of childhood acute lymphoblastic leukaemia, with radiation\u2010induced GH deficiency, exhibit hyperleptinaemia and impaired insulin sensitivity, unaffected by 12\u00a0months of GH 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