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At least 505 records · Page 28Linked to original sources
PubMed2005

Plasma 14C-cholic acid clearance in healthy dogs and dogs with cholestasis or a congenital portosystemic shunt.

The clearance profiles of intravenously injected tracer doses of radioactively labelled cholic acid were investigated in healthy dogs, dogs with a congenital portosystemic shunt and dogs with cholestasis. The rate constants and residual plasma activity were significantly different in the healthy and diseased dogs, but it was not possible to differentiate between the dogs with portosystemic shunting and cholestasis because the results were determined not only by factors involved in plasma bile acid clearance but also by the enterohepatic circulation.

Animals↗
PubMed2002

Canine atopic dermatitis: a retrospective study of 266 cases examined at the University of California, Davis, 1992-1998. Part I. Clinical features and allergy testing results.

The medical records of 266 dogs diagnosed as having atopic dermatitis were reviewed. Statistical data were evaluated referable to breed predilections, clinical signs and positive reactions to allergens. Positive reactions were most common to house dust mites (more common with clinical signs in the fall) followed by moulds (more common with clinical signs in the fall and spring). Dogs with positive reactions to moulds, trees or cultivated plants were more likely to have skin and ear yeast infections. Dogs with positive reactions to cultivated plants were more likely to have otitis externa and pedal lesions. Positive reactions to house dust were more common in dogs with early onset of signs and in those tested early in the disease. Dogs had more positive reactions to weeds when allergy tests were performed in the summer and fall. Positive reactions to flea antigen were highly correlated with the clinical diagnosis of flea allergy dermatitis.

Animals↗
PubMed2006

Dog tick-borne diseases in Sicily.

In Sicily many tick borne diseases are endemic, in particular way those that see like main carrier ticks that prefer, for their vital cycle, climatic conditions characterized by high temperatures and a warmth-humid atmosphere. The more important pathologies transmitted by ticks causing diseases in dogs are babesiosis and ehrlichiosis. Borrelia burgdorferi, Anaplasma phagocytophilum, Rickettsia conorii, Coxiella burnetii and tick transmitted encephalitis virus assume particular relevance because they are agents of zoonosis. Our centre, C.R.A.Ba.R.T, have conducted many researches and carried out many tests for diagnostic aim in order to estimate the spread of the main tick borne diseases in Sicilians' dogs. A study lead on 342 dogs has evidenced seroprevalence for Babesia canis, Ehrlichia canis and Rickettsia respective of 5.17%, 21.70% and 53.43%. A study on zoonotic agent seroprevalences in dogs gave the following percentages: C. burnetii 31.50%, R. conorii 73.60% and A. phagocytophilum 32.80%. The data carried out from IZS Sicily diagnostic service on 5,634 tests done in 2004-2005, confirm the experimental results on the presence of B. canis, E. canis, R. conorii, A. phagocytophilum, C. burnetii, Rickettsia spp., Anaplasma spp. and Ehrlichia spp. in all the Sicilian areas.

Animals↗
PubMed1997

Chronic pneumonia caused by Rhodococcus equi in a patient without impaired immunity.

A 48 year old, human immunodeficiency virus (HIV)-negative, immunocompetent male patient had a chronic progressive pulmonary infiltrate, without radiological cavitation, in the middle lobe of the right lung produced by Rhodococcus equi. He reported direct contact with a diseased dog. The patient was diagnosed by thoracotomy and treated by lobectomy. After 16 months of follow-up, the patient was asymptomatic and had neither recurrence nor immunological disturbances.

Actinomycetales Infections↗
PubMed1987

Chronic obstructive pulmonary disease in a dog.

Chronic obstructive pulmonary disease was diagnosed in a 3-year-old Basset Hound that was referred to the hospital because of respiratory distress. Results of radiography, bronchoscopy, and pulmonary function tests indicated lung hyperinflation, airflow restriction, and loss of elastic recoil of the lungs. Because of the poor response to treatment, the dog was euthanatized. Postmortem findings revealed emphysema, bronchiectasis, and bronchitis, which comprise chronic obstructive pulmonary disease.

Animals↗
PubMed1980

Clinical and laboratory features of canine lupus syndromes.

Determination of the specificities of antinuclear antibodies in the sera of 20 dogs presenting with symptoms of a lupus-like syndrome permitted their separation into 2 groups. The first group of 14 dogs all had antibody activity to DNA-histone antigen(s), and 4 of them also had antibodies to native DNA (nDNA). The Farr test with standard buffer was found to be unsatisfactory for the measurement of anti-nDNA antibodies in dog sera due to a high incidence of false positive reactions; these could be eliminated by the inclusion of sodium dodecyl sulfate in the buffer system. The second group of 6 dogs was characterized by the presence of antibodies to extractable nuclear antigen. In every serum tested diseased dogs had a diminished level of circulating thymic factor as compared to controls of the same age, suggesting that a diminution of suppressor T cells may be an etiologic factor.

Animals↗
PubMed1990

Newly reported skin disease syndromes in the dog.

Several recently recognized canine dermatoses are described. Syndromes discussed include superficial necrolytic dermatitis, Malasezzia dermatitis, sebaceous adenitis, nodular dermatofibrosis in German shepherd dogs, solar-induced dermatitis, and acrodermatitis.

Animals↗
PubMed1985

Graft-versus-host disease in dog and man: the Seattle experience.

In dog and in man a marrow graft from a donor genetically identical for the major histocompatibility complex is followed by significant graft-versus-host disease (GvHD) in approximately one-half of the recipients, despite the administration of post-grafting immunosuppressive therapy. Controlled trials comparing post-grafting therapy using methotrexate or cyclosporine have shown no difference in long-term survival, although cyclosporine reduces the incidence of mucositis and is associated with somewhat earlier engraftment. Observations in the canine model indicating efficacy of a combination of a brief course of methotrexate with the cyclosporine regimen are now being tested in patients, with early results indicating a reduction in GvHD and an improved survival. In both species, failure to administer immunosuppression after grafting is associated with a high incidence of acute GvHD and an adverse effect on survival. Removal of donor T cells from the marrow inoculum may reduce the incidence of acute GvHD but at the price of a higher likelihood of subsequent graft failure. Studies of canine and human chimeras are in agreement with murine data indicating a principal role for T cells in the pathogenic mechanism of GvHD. Chimera lymphocytes (of donor origin) from dogs and patients with acute GvHD proliferate in response to previously stored host cells, and lymphocytes cytotoxic to host target cells are seen in patients with GvHD. Our observations indicate a direct, rather than an indirect, role for T cells since lymphocytes from donors sensitized to chimeric skin grafts can cause lethal GvHD when infused into stable chimeric recipients. "Specific" suppressor cells may play a role in maintaining stable graft-host tolerance while "nonspecific" suppressor cells may be responsible for the impaired immune defenses in patients with chronic GvHD. Chronic GvHD, which resembles systemic collagen vascular disease, occurs in approximately 40% of matched recipients, particularly following acute GvHD, and is more frequent in older patients. Efforts to treat both acute and chronic GvHD with steroids, antithymocyte globulin, cyclosporine and azathioprine are only partially and unpredictably effective. Data in dogs pointed out the feasibility of transplants from partially matched related donors or matched unrelated donors, an approach that is now being actively pursued in human patients. Marrow transplants from HLA-partially matched family members resulted in a higher incidence of acute GvHD.(ABSTRACT TRUNCATED AT 400 WORDS)

Acute Disease↗
PubMed1999

Use of pamidronate to reverse vitamin D3-induced toxicosis in dogs.

OBJECTIVES: To determine whether pamidronate disodium can reduce vitamin D3-induced hypercalcemia in dogs and whether combination treatment with calcitonin is more effective than treatment with pamidronate alone. ANIMALS: 20 clinically normal male Beagles. PROCEDURE: All dogs were given 8 mg of cholecalciferol (CCF)/kg of body weight once orally, then were assigned randomly to 4 groups of 5 dogs each. Dogs were given 0.9% NaCl solution IV (group 1), calcitonin SC and 0.9% NaCl solution IV (group 2), pamidronate and 0.9% NaCl solution IV (group 3), or a combination of all 3 agents (group 4). Dogs were observed for 28 days, and serial blood and urine samples were collected for determination of serum biochemical, electrolyte, and 25(OH)D3 values, CBC, and urine mineral excretion. Samples of kidney, stomach, lung, aorta, liver, duodenum, and brain were evaluated by light microscopy and quantitative mineral analysis. RESULTS: Two dogs in group 1 were euthanatized 4 days after CCF administration because of severe clinical signs of disease. Dogs in group 3 lost less weight and had significantly lower serum phosphorus, total and ionized calcium, and urinary zinc concentrations, compared with dogs in group 1. On day 4, serum urea nitrogen concentration was significantly lower in dogs of groups 3 and 4, compared with dogs in group 1. Mild to moderate mineralization of kidneys and stomach were observed in the 2 group-1 dogs euthanatized on day 4. CONCLUSIONS: Pamidronate administration effectively prevents CCF-induced hypercalcemia and mineralization of soft tissues. CLINICAL RELEVANCE: Pamidronate is a potentially useful antidote against CCF toxicosis in dogs.

Analgesics↗
PubMed2005

Phylogenetic characterization of canine distemper viruses detected in naturally infected dogs in North America.

In 2004, six puppies and one adult dog from a total of four premises were subjected to necropsy evaluation. For five of the seven dogs, disease caused by canine distemper virus (CDV) infection was suspected based on clinical signs. In all of the dogs, a diagnosis of CDV infection was established by the presence of compatible gross and histologic lesions, immunohistochemical labeling for CDV antigen, and detection of CDV RNA by reverse transcription-PCR. To further characterize the CDV strains detected in the four cases, complete gene sequences were determined for the hemagglutinin (H) and fusion (F) protein genes, while partial gene sequencing was performed for the phosphoprotein gene. A total of 4,508 bases were sequenced for the CDV strains detected from each of the four cases. Two cases were found to have identical sequences except for 2 bases in the intergenic region of the F and H genes. Phylogenetic analysis strongly suggested an evolutionary relationship between sequences detected in these two cases and those of phocine distemper virus 2 and two other strains of CDV not previously detected in the continental United States. Clear phylogenetic relationships were not established for viruses detected in the two additional cases; however, one strain showed similarity to CDV strains detected in a panda from China. Importantly, the three CDV strains detected were demonstrated to be genetically distinct from known vaccine strains and strains previously reported in the continental United States.

Amino Acid Sequence↗