Artículo
Perinatal exposure to glyphosate or a glyphosate-based formulation disrupts hormonal and uterine milieu during the receptive state in rats
Lorenz, Virginia
; Pacini, Guillermina; Luque, Enrique Hugo
; Varayoud, Jorgelina Guadalupe
; Milesi, Maria Mercedes
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Fecha de publicación:
07/2020
Editorial:
Pergamon-Elsevier Science Ltd
Revista:
Food And Chemical Toxicology
ISSN:
0278-6915
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
We investigated the effects of perinatal exposure to a glyphosate-based herbicide (GBH) or glyphosate alone (Gly) on female fertility and the hormonal and uterine milieu during the preimplantation period. F0 pregnant rats orally received a GBH or Gly in a dose of 2 mg of glyphosate/kg/day from gestational day (GD) 9 until weaning. F1 females were evaluated to determine the reproductive performance on GD19; and the sex steroid serum levels, the expression of estrogen receptor alpha (ERα), progesterone receptor (PR) and implantation-related genes on GD5 (preimplantation period). GBH and Gly induced preimplantation losses in F1 rats. GBH and Gly groups exhibited higher 17β-estradiol serum levels, without changes in progesterone. Both compounds increased the uterine ERα protein expression, with no differences at transcript level; and only Gly decreased PR mRNA expression. Also, GBH and Gly downregulated Hoxa10 and Lif genes, with no difference in Muc1 and Areg expression. To conclude, perinatal exposure to a GBH or Gly disrupted critical hormonal and uterine molecular targets during the receptive state, possibly associated with the implantation failures. Overall, similar results were found in GBH- and Gly-exposed rats, suggesting that the active principle might be the main responsible for the deleterious effects.
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Articulos(ISAL)
Articulos de INSTITUTO DE SALUD Y AMBIENTE DEL LITORAL
Articulos de INSTITUTO DE SALUD Y AMBIENTE DEL LITORAL
Citación
Lorenz, Virginia; Pacini, Guillermina; Luque, Enrique Hugo; Varayoud, Jorgelina Guadalupe; Milesi, Maria Mercedes; Perinatal exposure to glyphosate or a glyphosate-based formulation disrupts hormonal and uterine milieu during the receptive state in rats; Pergamon-Elsevier Science Ltd; Food And Chemical Toxicology; 143; 7-2020
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