Dog Research Papers - Academia.edu (original) (raw)

Resumo: Objetiva-se relatar o caso de um cão, Rotweiller, de 11 anos de idade, atendido com sinais clínico-neurológicos progressivos devido à astrocitoma fibrilar medular multifocal. As imagens de mielografia indicaram desvio da coluna... more

Resumo: Objetiva-se relatar o caso de um cão, Rotweiller, de 11 anos de idade, atendido com sinais clínico-neurológicos progressivos devido à astrocitoma fibrilar medular multifocal. As imagens de mielografia indicaram desvio da coluna ventral do contraste entre as vértebras C6-C7. Após slot ventral para descompressão medular, houve alteração dos sinais clínicos sugerindo uma lesão no segmento medular C1-C5 que não foi visibilizada na mielografia. Devido ao prognóstico desfavorável optou-se pela eutanásia. Ao exame macroscópico foram identificados dois nódulos esbranquiçados bem delimitados na medula espinhal localizados em C1-C2 e em C7-C8. A avaliação histopatológica foi compatível com astrocitoma fibrilar.
Abstract: The purpose of this report is to describe a case of a 11 years old, entire male rotweiller dog presented for evaluation of progressive clinical neurological signs due to multifocal spinal cord fibrillary astrocytoma. Myelography imaging suggested ventral deviation of the constrast in the height between the sixth and the seventh cervical vertebrae. After performing ventral slot there were changes in the clinical signs suggesting a lesion in C1-C5 spinal cord segment there was not visualized in myelography. Euthanasia was performed due to the poor prognosis. Gross examination identified two well-defined whitish masses in the spinal cord, one located at C1-C2 and another on C7-C8. Histopatology was consistent with fibrillary astrocytoma.

Resumo: Uma cadela boxer, de seis anos de idade, foi atendida com sinais clínico-neurológicos crônicos, progressivos e multifocais. Imagens de ressonância magnética foram sugestivas de um grande nódulo intra-axial no hemisfério... more

Resumo: Uma cadela boxer, de seis anos de idade, foi atendida com sinais clínico-neurológicos crônicos, progressivos e multifocais. Imagens de ressonância magnética foram sugestivas de um grande nódulo intra-axial no hemisfério prosencefálico esquerdo. Após nove meses de remissão clínica com lomustina, fenobarbital e prednisona, foi realizada eutanásia, devido a piora clínica considerável. Ao exame macroscópico foi identificado nódulo macio de 3x2 cm de diâmetro, submeníngeo substituindo o parênquima na região prosencefálica esquerda. A avaliação histopatológica foi compatível com astrocitoma anaplásico. Objetiva-se relatar o caso de uma cadela boxer de seis anos de idade com astrocitoma anaplásico que apresentou remissão dos sinais clínico-neurológicos multifocais após tratamento conservativo.
Abstract A 6-year-old, entire female boxer dog was presented for evaluation of chronic, progressive multi-focal neurological signs. Magnetic resonance imaging suggested a large intra-axial mass in the left forebrain. After 9 months of treatment with lomustine, phenobarbital and prednisone, euthanasia was performed because of substantial clinical worsening. Grossly, there was identified a woolen mass with 3 cm in diameter, replacing the parenchyma in the left forebrain. Histopathology was consistent with anaplastic astrocytoma. It aims to report a case of a 6 year-old, entire female boxer dog who had remission of clinical neurological signs due to multifocal brain anaplastic astrocytoma after conservative treatment.

A review of the ability of dogs to sniff out cancer

Daniel Naudé's exhibition of photographic artworks, “African Scenery & Animals”, is discussed in this article, to consider the ways in which images of animal beings are mostly received as figurative vehicles for anthropocentric... more

Daniel Naudé's exhibition of photographic artworks, “African Scenery & Animals”, is discussed in this article, to consider the ways in which images of animal beings are mostly received as figurative vehicles for anthropocentric narratives. Naudé's particularised portraits of AfriCanis dogs and other domestic creatures are considered in relation to figurative anthropocentric analysis of the artworks that the artist's gallery and other reviewers have undertaken. I argue that Naudé's oeuvre is more in line with J.M. Coetzee's fictional character Elizabeth Costello's notion of imaginative empathy, proposing the capacity of human beings to imagine what it might be like to be an(other) (Coetzee 2004: 79), and that Naudé's portraits of animal beings provoke imaginative empathetic (Coetzee 2004: 79) transposition in the viewer. I recount my imaginative empathetic encounters (Coetzee 2004: 79) with particular artworks from the “African Scenery & Animals” series, and consider the imperial legacy of the landscape genre and the photographic medium employed by Naudé in relation to the artist's use of destabilising formal and contextual devices.

Milbemycin oxime tablets were evaluated for efficacy against sarcoptic mange mites in naturally infested dogs. Sixty-five dogs were allocated to two groups and were housed individually. Fifty of the dogs were treated orally with... more

Milbemycin oxime tablets were evaluated for efficacy against sarcoptic mange mites in naturally infested dogs. Sixty-five dogs were allocated
to two groups and were housed individually. Fifty of the dogs were treated orally with milbemycin oxime at the proposed dose. The other
fifteen were treated orally with vehicle. Study day 0 was defined as the first day of treatment administration. Dogs were treated on days 0, 7
and 14, and efficacy was assessed by counting viable mites recovered from skin scrapings. To enumerate Sarcoptes scabiei mites, skin scrapings were taken on each of Days-1, 14, 28, 42 and 56. Clinical signs of mange and the extent of sarcoptic lesions were evaluated on each dog when scrapings were made. Evaluation of the efficacy of the treatment was based on the absence of mites supported by the absence of clinical signs associated with canine sarcoptic mange. Treatment with milbemycin oxime at weekly intervals resulted in a rapid reduction of mites and improved clinical signs. Percentage reductions in geometric mean mite counts for milbemycin oxime, compared with vehicle, on days 14, 28, 42, and 56 were 90, 96, 100, and 100%, respectively. The overall cure rates at Day 56, based on zero mite counts and resolution of clinical signs were 100% of dogs. Weekly treatment with maximum dose (2.0g/kg) rate of milbemycin oxime for continually three weeks, was effective against naturally acquired infestations of sarcoptes scabiei in dogs, reducing mites counts by 100%.

... BG - Bergamo, BS - Brescia, CR - Cremona, LO - Lodi, MI - Milano, MN - Mantova, PV - Pavia, SO - Sondrio, VA - Varese, CI - Confidence Interval ... The main races were Holstein and Brown Swiss (77 % and 8 %, respectively); the... more

... BG - Bergamo, BS - Brescia, CR - Cremona, LO - Lodi, MI - Milano, MN - Mantova, PV - Pavia, SO - Sondrio, VA - Varese, CI - Confidence Interval ... The main races were Holstein and Brown Swiss (77 % and 8 %, respectively); the remaining animals belonged to other minor races ...

Introduction: We did this study because there were a few studies about aorto-branch junction. Methods: Four light microscope and electron microscope study, the abdominal aorta, renal artery, and the adjoining right and left renal arteries... more

Introduction: We did this study because there were a few studies about aorto-branch junction.
Methods: Four light microscope and electron microscope study, the abdominal aorta, renal artery, and the adjoining right and left renal arteries were dissected out from 4 neonate dogs.
Results: Based on the results, there is only one cell type in the tunica intima of endothelium in both arteries. In abdominal aorta, there were open connective tissue spaces, containing elastic fibers between the internal elastic membrane and endothelium. In renal artery, endothelial cells were attached directly to the internal elastic membrane. In the abdominal aorta tunica media, layers of smooth muscle cells alternating with elastic lamellae were observed, but in renal artery, the smooth muscle cells were close to each other and a small quantity of collagen and elastic fibers were found between them. There were more dense bodies in the renal artery smooth muscle cells compared to the abdominal aorta. The adventitia of the both arteries consisted of scattered fibroblasts and elastic fibers in tunica adventitia of renal artery were more than those in abdominal aorta. There were 2 orientations of smooth muscle cells at the junction of renal artery; circular form in tunica media and longitudinal form in the outer part of tunica media and tunica adventitia and it was similar to the structure of muscular veins.
Conclusion: aorta and renal artery in neonate dogs show some differences. These differences presumably reflect adaptation to the function of these 2 arteries.

Introduction: Arteries are made up three layers; tunica intima, tunica media, and tunica adventitia. However, in some part of the artery this structure may change. The greatest change occurs at the junctions and bifurcations. In this... more

Introduction: Arteries are made up three layers; tunica intima, tunica media, and tunica adventitia. However, in some part of the artery this structure may change. The greatest change occurs at the junctions and bifurcations. In this regard, we decided to study the renal artery bifurcation just where the renal arteries divide into smaller arteries before entering the kidney. Methods: The structure of renal artery bifurcation was assessed in six normal male dogs by light microscopy. Also the thickness of the tunica intima, tunica media, and tunica adventitia before and after bifurcation area was measured. Results: Tunica intima cannot be seen in this area and tunica media in one side and tunica adventitia in other side were very thick. It seems that division of renal artery happens with the penetration of tunica adventitia in one side and tunica media in the other side. Conclusion: In this area, the artery has thick tunica media on one side and thick tunica adventitia on the other side and these differences were significant. The circular and longitudinal smooth muscle cells can be seen in renal artery bifurcation. These structures may be due to function of this area to maintain and control blood pressure and prevent artery from bursting and dilation. Citation: Ramezani Nowrozani F. Studying Renal Artery Bifurcation Structure in Male Dogs. Anatomical Sciences. 2017; 14(1):19-24.