Medycyna wieku rozwojowego · 2004
[Effect of anticancer treatment on leptin level, fat body mass (FM) and lean body mass (LBM)].
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Krawczyk-Rybak Maryna, Muszyńska-Rosłan Katarzyna, Konstantynowicz Jerzy, Solarz Elzbieta, Wołczynski Sławomir, Protas Piotr
Аннотация
UNLABELLED: Leptin plays an important role in the metabolism of adipose tissue. Considering that malignancy and its treatment cans affect normal development in childhood. We analysed the correlations between serum leptin levels and body composition after anticancer treatment. We studied 33 survivors (24 boys and 9 girls) who before our study, have been treated for acute lymphoblastic leukaemia (ALL) (n=23) and Hodgkin disease (n=10) after 7.15+/-3.5 years. Sixteen patients with ALL received cranial irradiation (12Gy). We measured body mass index (BM1) fat mass (FM) and lean body mass (LBM) using dual energy x-ray absorptiometry (DXA). We compared these results to the results obtained from reference values (SD score). Leptin levels were measured with the RIA method.
RESULTS: 1. Mean leptin levels were higher in girls after puberty (10.93 ng/mL+/-8.9) than in boys (3.73 ng/mL+/-3. 7). In boys no differences were found in leptin levels between T2-4 and T5 stages. In girls the leptin values increased after puberty. Leptin SD score levels were higher in boys during (1.55 +/-1.0) and after puberty (1.46+/-0.75) and in girls - after puberty (1.19 +/-1.51). We did not find any influence of cranial irradiation (12Gy) or various methotrexate doses (5 g/m(2) vs. 19/m(2)) leptin values. 2. No difference in BMI SD score was found within the whole study group. 3. FM did not change ill boys during and after puberty, although FM SD score were higher during puberty (2.98 +/-4.8). In girls FM and FM SD score were higher after puberty. In boys and girls LBM augmented with pubertal development but LBM SD score in boys were lower after puberty (-1.67 +/-1.7) in comparison to puberty (0.2 +/-1.7). No differences were found between LBM SD score in girls during and after puberty. 4. We found a correlation between leptin levels and BMI (r=0.59 p=0.001) and FM (r=0.77 p=0.0001). 5. Relation of FM to LBM in boys remained unchanged, however in girls it increased within pubertal development.
CONCLUSION: l. Anticancer treatment during childhood shows no influence on body mass index although the tendency to higher fat mass in pubertal boys and in post pubertal girls is observed. 2. Leptin values depend on fat mass and do not relate directly to the pubertal stage.
RESULTS: 1. Mean leptin levels were higher in girls after puberty (10.93 ng/mL+/-8.9) than in boys (3.73 ng/mL+/-3. 7). In boys no differences were found in leptin levels between T2-4 and T5 stages. In girls the leptin values increased after puberty. Leptin SD score levels were higher in boys during (1.55 +/-1.0) and after puberty (1.46+/-0.75) and in girls - after puberty (1.19 +/-1.51). We did not find any influence of cranial irradiation (12Gy) or various methotrexate doses (5 g/m(2) vs. 19/m(2)) leptin values. 2. No difference in BMI SD score was found within the whole study group. 3. FM did not change ill boys during and after puberty, although FM SD score were higher during puberty (2.98 +/-4.8). In girls FM and FM SD score were higher after puberty. In boys and girls LBM augmented with pubertal development but LBM SD score in boys were lower after puberty (-1.67 +/-1.7) in comparison to puberty (0.2 +/-1.7). No differences were found between LBM SD score in girls during and after puberty. 4. We found a correlation between leptin levels and BMI (r=0.59 p=0.001) and FM (r=0.77 p=0.0001). 5. Relation of FM to LBM in boys remained unchanged, however in girls it increased within pubertal development.
CONCLUSION: l. Anticancer treatment during childhood shows no influence on body mass index although the tendency to higher fat mass in pubertal boys and in post pubertal girls is observed. 2. Leptin values depend on fat mass and do not relate directly to the pubertal stage.