In Situ Uterine Artery Prostaglandin E and Nitric Oxide in Open-Cervix Pyometra and Medically Treated Bitches.

Uterine vascular alterations take place in pyometra bitches speculatively influenced by prostaglandin and nitric oxide pathways. However, no causative effect of nitric oxide on endometrial vascularization was proved elsewhere for medically treated pyometra bitches. This study aimed to identify the main in situ uterine artery vasodilation pathway in pyometra bitches medically treated with antigestagen solely or coupled with prostaglandin.

The need for assisted ventilation corroborates the effectiveness of antenatal corticosteroid therapy in preventing premature lamb mortality.

In premature births, deficiency and/or inactivation of surfactant and incomplete development of lung occur, leading to pulmonary complications and greater need for ventilatory interventions. Prenatal corticosteroid therapy is used to improve neonatal lung function and, thus, may reduce mortality and lower incidence and severity of lung injury. Therefore, this study aimed to assess the need for ventilatory support in preterm lambs subjected or not to prenatal betamethasone treatment, and to evaluate the effectiveness on neonatal survival.

Canine pulmonary clearance during feto-neonatal transition according to the type of delivery.

The success of immediate adaptation to extrauterine life depends on appropriate lung function, however, elective cesarean section can increase the risk of respiratory distress as a result of reduced pulmonary fluid absorption. This study aimed to evaluate the influence of birth mode on pulmonary clearance and respiratory performance of canine neonates in the transition period. For this purpose, 37 neonates were selected according to the obstetric condition: Vaginal Eutocia (n = 17) and Elective C-section (n = 20).

Maternal and neonatal cortisol and catecholamines throughout vaginal eutocia and C-section in dogs.

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.

Frozen-Thawed Sperm Analysis of Benign Prostatic Hyperplasia Dogs Treated With Finasteride.

Benign Prostatic Hyperplasia (BPH) is a pathological condition that directly interferes with the reproductive potential of senile dogs, by leading to prostate enlargement and sperm injury, which in turn may compromise sperm freezeability. Moreover, albeit finasteride treatment reduces prostatic volume and blood supply and maintains seminal quality and testicular integrity, the effects of sperm samples submitted to cryopreservation after the finasteride treatment are still unknown. Thus, the aim of this study was to evaluate frozen-thawed semen of BPH dogs, as well as dogs subjected to BPH pharmacological treatment with finasteride.