title: [Gonadal function in boys prior to treatment for acute lymphoblastic leukaemia].
abstract: The aim of this study was to evaluate the gonadal function in boys with newly-diagnosed acute lymphoblastic leukaemia, prior to therapy.
  
  
  METHODS
  The analysis was evaluated in 48 boys with acute lymphoblastic leukaemia, at the time of diagnosis; 34 boys were prepubertal - Tanner stage of sexual maturation 1 (group I) and 14 - pubertal - Tanner stage 3-5 (group II). Serum follicle-stimulating hormone (FSH), luteinizing hormone (LH), inhibin B, testosterone and testicular volume were determined.
  
  
  RESULTS
  In group I no alteration in hormonal status was observed, whereas in group II lower inhibin B was found (68.09 ng/l+/-54.87 vs 152.66 ng/l+/-72.09, p=0.0002). The levels of FSH, LH, testosterone and testicular volume did not differ from healthy adolescents. We did not observe a correlation between inhibin B and FSH concentrations. We did not find the influence of immunophenotype of leukaemic cells, leukocytosis, haemoglobin, platelets levels as well as LDH activity on the values of analyzed hormones.
  
  
  CONCLUSIONS
  In adolescent boys with newly diagnosed leukaemia, lowered inhibin B values may suggest the damage of spermatogenesis even before the start of chemo- and radiotherapy. The small number of examined children requires confirmation on a larger group of patients.
authors.affiliation: Klinika Onkologii i Hematologii Dzieciecej, Uniwersytet Medyczny w Białymstoku, ul. Waszyngtona 17, 15-274 Białystok, Poland. rybak@umwb.edu.pl
authors.forename: Maryna
authors.initials: M
authors.lastname: Krawczuk-Rybak
authors.forename: Elzbieta
authors.initials: E
authors.lastname: Solarz
authors.forename: Małgorzata
authors.initials: M
authors.lastname: Wojtkowska
authors.forename: Jolanta
authors.initials: J
authors.lastname: Wysocka
mesh_terms: D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D005640:Follicle Stimulating Hormone / Q000097:blood; D006058:Gonadal Disorders / Q000097:blood* / Q000209:etiology*; D006801:Humans; D007265:Inhibins / Q000097:blood; D007986:Luteinizing Hormone / Q000097:blood; D008297:Male; D054198:Precursor Cell Lymphoblastic Leukemia-Lymphoma / Q000097:blood* / Q000150:complications*; D013739:Testosterone / Q000097:blood
chemical_list: C422364:inhibin B; D013739:Testosterone; D007265:Inhibins; D007986:Luteinizing Hormone; D005640:Follicle Stimulating Hormone