[Male hormonal profile in workers exposed to toluene in an industrial packaging plant]

Rev Med Inst Mex Seguro Soc. 2013 May-Jun;51(3):270-5.
[Article in Spanish]

Abstract

Objective: to identify changes in the male hormonal profile (MHP), consisting of luteinizing hormone (LH), follicle-stimulating hormone (FSH) and testosterone, in workers exposed to toluene.

Methods: cross-sectional study that included 42 workers, formed in two groups: with high and low exposure to toluene (HET and LET, respectively); the hippuric acid in urine, and the serum concentration in FSH, LH, and testosterone were measured.

Results: hippuric acid in subjects with LET was 2.53 ± 1.20 g/g creatinine, and with HET: 6.31 ± 3.83 g/g creatinine (p = 0.02). Seric FSH concentration was 5.12 ± 0.77 and 3.55 ± 0.3 mU/mL (p = 0.02) in LET and HET, respectively; LH: 2.66 ± 0.45 and 2.77 ± 0.21 (p = 0.81), and testosterone 3.91 ± 0.34 and 4.86 ± 0.23 ng/mL (p = 0.04). By regression analysis, the correlation coefficient of FSH with hippuric acid was r = -0.33 (p = 0.031), with coefficient of determination of 11 %; the LH correlation coefficient was r = -0.037 (p = 0.88) and 0.05 %, respectively; and the one for testosterone was r = 0.61 (p = 0.0001) and 34 %.

Conclusions: in HET group, FSH and LH serum levels diminished; testosterone shows an opposite response, perhaps explained by a different sensitivity of the male gonads exposed to toluene.

Objetivo: identificar cambios en el perfil hormonal masculino (PHM), integrado por las hormonas luteinizante (LH), folículo-estimulante (FSH) y testosterona, de trabajadores expuestos a tolueno. Métodos: estudio transversal que incluyó a 42 trabajadores. Se constituyeron dos grupos: con exposición alta (EAT) y con exposición baja (EBT) a tolueno. Se midió la concentración sérica de FSH, LH y testosterona, así como el ácido hipúrico en orina. Resultados: ácido hipúrico en sujetos con EBT: 2.53 ± 1.20 g/g creatinina; con EAT: 6.31 ± 3.83 g/g creatinina (p = 0.02). Concentración sérica de FSH: 5.12 ± 0.77 y 3.55 ± 0.3 mU/mL (p = 0.02) en EBT y EAT, respectivamente; de LH: 2.66 ± 0.45 y 2.77 ± 0.21 (p = 0.81); y testosterona: 3.91 ± 0.34 y 4.86 ± 0.23 ng/mL (p = 0.04). Por análisis de regresión, el coeficiente de correlación de FSH con ácido hipúrico fue de r = -0.33 (p = 0.031), con coeficiente de determinación de 11%; el de LH: r = -0.037 (p = 0.88) y 0.05 % respectivamente, y el de testosterona: r = 0.61 (p = 0.0001) y 34 %. Conclusiones: en el grupo EAT, los niveles séricos de la FSH y LH disminuyeron; la testosterona muestra una respuesta contraria, lo cual quizás se explique por una diferente sensibilidad de gónadas masculinas a la exposición del tolueno.

Keywords: follicle stimulating hormone; luteinizing hormone; occupational exposure; testosterone; toluene.

Publication types

  • English Abstract

MeSH terms

  • Adolescent
  • Adult
  • Cross-Sectional Studies
  • Follicle Stimulating Hormone / blood*
  • Humans
  • Luteinizing Hormone / blood*
  • Male
  • Middle Aged
  • Occupational Exposure / adverse effects*
  • Product Packaging*
  • Testosterone / blood*
  • Toluene / adverse effects*
  • Young Adult

Substances

  • Toluene
  • Testosterone
  • Luteinizing Hormone
  • Follicle Stimulating Hormone