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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Impact of intrauterine exposure to betamethasone on the testes and epididymides of prepubertal rats

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Franco de Barros, Jorge Willian [1] ; Borges, Cibele dos Santos [1] ; Missassi, Gabriela [1] ; Pacheco, Taina Louise [1] ; Kempinas, Wilma De Grava [1]
Total Authors: 5
[1] Sao Paulo State Univ UNESP, Inst Biosci, Dept Morphol, Botucatu, SP - Brazil
Total Affiliations: 1
Document type: Journal article
Source: Chemico-Biological Interactions; v. 291, p. 202-211, AUG 1 2018.
Web of Science Citations: 1

Therapy with betamethasone, a synthetic glucocorticoid, is used in cases of preterm birth risk, in order to promote fetal lung maturation, and decrease neonatal mortality and morbidity. However, late reproductive disorders related to the prenatal exposure to this compound have been reported by our Laboratory, in both male and female rats. Thus, the present study aimed to evaluate the impact of betamethasone on postnatal reproductive development, during pre-puberty, of male offspring exposed in utero to this synthetic glucocorticoid. For this purpose, pregnant Wistar rats were allocated into two groups: Control, treated with saline, and the group treated with betamethasone at 0.1 mg/kg/day. Control and betamethasone groups were treated with intramuscular injection on gestational days 12, 13, 18 and 19, critical days of prenatal reproductive development. The treatment is associated with reduced body and organ weights, disorders in initial reproductive parameters of pre-pubertal male offspring exposed in utero to betamethasone, such as reduction of anogenital distance, alterations in histomorphometric parameters and immunostaining pattern of androgen and estrogen receptors on testicles and epididymides. Our results suggest that prenatal exposure to betamethasone potentially causes reproductive reprogramming and impairs male postnatal reproductive development. This data raise concerns about the use of betamethasone for human antenatal therapy. (AU)

FAPESP's process: 17/02764-9 - Gestational exposure to betamethasone in rats: pharmacological reactivity of the isolated maternal uterine horn and initial development of the offspring testis
Grantee:Jorge Willian Franco de Barros
Support type: Scholarships in Brazil - Scientific Initiation