Postmortem evaluation of surgery site leakage by use of in situ isolated pulsatile perfusion after partial liver lobectomy in dogs.

Objective: To evaluate postmortem surgery site leakage by use of in situ isolated pulsatile perfusion after partial liver lobectomies.

Animals: 10 healthy mixed-breed male dogs.

Procedures: Dogs were anesthetized, and 5 surgical techniques (pretied suture loop, energy-based sealer-divider, harmonic scalpel, suction with clip application, or suction with use of a thoracoabdominal stapler) were used to perform 5 partial liver lobectomies in each dog.

Evaluation of pacing site in dogs with naturally occurring complete heart block.

Objective: To compare left ventricular synchronization and systolic performance with transvenous pacing of the right ventricular apex (RVA), left ventricular free wall (LVF) or simultaneous pacing of the RVA and LVF (BiV).

Animals, Materials And Methods: Seven canine patients with complete heart block. Prospective study evaluating effect of pacing site.

Cardiac evaluation of clinically healthy captive maned wolves (Chrysocyon brachyurus).

The objective of this project was to determine radiographic vertebral heart sizes and electrocardiographic (ECG) and echocardiographic measurements in healthy anesthetized maned wolves (Chrysocyon brachyurus). The wolves, housed at the White Oak Conservation and Smithsonian National Zoo Conservation and Research Centers, were being anesthetized for annual examinations. Cardiac auscultation, thoracic radiographs, a standard 6-lead ECG, and echocardiography were performed on the wolves while they were under general anesthesia.

Biomechanical and histologic comparison of single-layer continuous Cushing and simple continuous appositional cystotomy closure by use of poliglecaprone 25 in rats with experimentally induced inflammation of the urinary bladder.

Objective: To biomechanically and histologically compare single-layer continuous Cushing and simple continuous appositional cystotomy closure in rats with xylene-induced cystitis.

Animals: 40 female Sprague-Dawley rats.

Procedure: Rats were anesthetized, their urinary bladders catheterized and evacuated, and xylene instilled in each bladder for 5 minutes and then aspirated.

Investigation of the effects of deracoxib and piroxicam on the in vitro viability of osteosarcoma cells from dogs.

Objective: To determine whether exposure of canine osteosarcoma cells to deracoxib or piroxicam results in decreased viability, whether the cytotoxic effects of deracoxib and piroxicam involve induction of apoptosis, and whether deracoxib is a more potent inhibitor of osteosarcoma cell growth than piroxicam.

Sample Population: 1 fibroblast and 3 osteosarcoma cell lines.

Procedure: Cell counts and viability assays were performed using osteosarcoma cells (POS, highly metastatic POS, and canine osteosarcoma cell 31) and fibroblasts after 72 hours of incubation with deracoxib at concentrations of 0.

Investigation of the effect of pamidronate disodium on the in vitro viability of osteosarcoma cells from dogs.

Objective: To determine the effect of pamidronate disodium on the in vitro viability of osteosarcoma cells and non-neoplastic cells from dogs.

Sample Population: 3 osteosarcoma and 1 fibroblast cell lines derived from dogs.

Procedure: Cell counts and cell viability assays were performed in cultures of osteosarcoma cells (POS, HMPOS, and COS31 cell lines) and fibroblasts after 24, 48, and 72 hours of incubation with pamidronate at concentrations of 0.

Evaluation of oxidative stress markers for the early diagnosis of allograft rejection in feline renal allotransplant recipients with normal renal function.

The purpose of this study was to identify oxidative damage to renal allografts during graft rejection by evaluating changes in oxidative markers and plasma lactate levels in feline renal allotransplant recipients. Heterotopic renal allotransplantations were performed between 8 adult feline cross-matched donors. Following 14 d of immunosuppression, the drugs were discontinued to allow allograft rejection.

The effect of the bisphosphonate alendronate on viability of canine osteosarcoma cells in vitro.

The objective of this study was to determine the effect of alendronate on the viability of canine osteosarcoma cells and nonneoplastic canine cells. The sample population was composed of canine osteosarcoma tumor cells. Osteosarcoma cells and canine fibroblasts were maintained in culture under standard conditions.

Effect of thalidomide on growth and metastasis of canine osteosarcoma cells after xenotransplantation in athymic mice.

Objective: To determine whether thalidomide inhibits the growth of primary and pulmonary metastatic canine osteosarcoma in mice after xenotransplantation.

Animals: Athymic nude mice.

Procedure: Canine osteosarcoma cells were injected SC in 50 mice.

Sonographic and scintigraphic evaluation of acute renal allograft rejection in cats.

The sonographic features of acute renal allograft rejection in humans and dogs are manifested by increase in renal cross-sectional area and reduction in renal cortical blood flow. These changes have not been investigated in cats. The objectives of this study were to evaluate sonographic and scintigraphic changes during acute renal allograft rejection in cats.