Maternal and neonatal cortisol and catecholamines throughout vaginal eutocia and C-section in dogs
Articolo
Data di Pubblicazione:
2024
Citazione:
Maternal and neonatal cortisol and catecholamines throughout vaginal eutocia and C-section in dogs / R. Azevedo de Abreu, L. Lima de Almeida, M. Morales de Brito, R. Rodrigues da Rosa Filho, M.C. Veronesi, C. Infantosi Vannucchi. - In: DOMESTIC ANIMAL ENDOCRINOLOGY. - ISSN 0739-7240. - Elsevier:(2024). [Epub ahead of print] [10.1016/j.domaniend.2024.106838]
Abstract:
Increased fetal cortisol is associated with catecholamine release, a primary factor for neonatal adaptive responses.
However, relationship between canine peripartum cortisol and catecholamine is unknown. We aimed to
compare serum adrenaline, noradrenaline and cortisol during peripartum in bitches and neonates of distinct
obstetric conditions and to assess amniotic fluid cortisol concentration. Twenty females and maximum of three
puppies per litter were allocated into Vaginal Eutocia (10 females; 17 neonates) and Elective C-section (10 females;
20 neonates) groups. Amniotic fluid was collected at delivery for cortisol concentration. Maternal and
neonatal blood were collected prepartum, intrapartum, postpartum and 1h postpartum, and at birth, 30 and
60min, 12hs and 24hs, respectively, for cortisol, adrenaline and noradrenaline assessment. C-section determined
higher noradrenaline throughout delivery and cortisol concentration from intrapartum through 1h postpartum,
compared to vaginal birth. C-section maternal cortisol showed progressive increase from intrapartum onwards,
while neonatal cortisol remained unchanged. No difference of maternal cortisol concentration occurred along
whelping, whereas a significant decrease was verified for vaginal delivery puppies from birth until the 12hs.
Puppies delivered vaginally had higher cortisol concentration at birth and 30min, compared to c-section puppies.
There was a higher concentration of amniotic fluid cortisol in vaginal eutocia. In conclusion, c-section induces
higher maternal stress during and after surgery, whilst vaginal delivery is a more neonatal physiologically
stressful condition, contributing to better adaptation during transition.
Tipologia IRIS:
01 - Articolo su periodico
Keywords:
adrenaline; noradrenaline; amniotic fluid; cesarean section; labor; canine
Elenco autori:
R. Azevedo de Abreu, L. Lima de Almeida, M. Morales de Brito, R. Rodrigues da Rosa Filho, M.C. Veronesi, C. Infantosi Vannucchi
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