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Vet Surg ; 48(5): 770-779, 2019 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-31032990


OBJECTIVE: To determine the relationship between synovial biomarker concentrations and severity of lameness and to assess the ability to differentiate normal from osteoarthritic joints with synovial biomarker concentrations. STUDY DESIGN: Prospective clinical study. SAMPLE POPULATION: Twelve hounds with no evidence of osteoarthritis (OA) and 27 client-owned dogs with unilateral lameness and joint pain in a single joint from naturally occurring OA. METHODS: Enrollment in the OA group required a history of lameness, radiographic evidence of OA on orthogonal joint radiographs, and ≥6% gait asymmetry between contralateral limbs. The concentrations of 14 synovial OA biomarkers in synovial samples obtained after gait analysis were measured with enzyme-linked immunosorbent assays and compared between normal and OA joints. RESULTS: Concentrations of monocyte chemoattractant protein (MCP)-1, substance P, interleukin (IL)-6, IL-8, KC-like, matrix metalloproteinase (MMP)-1, and MMP-3 were greater (P ≤ .05) in OA than in normal joints. The concentrations of bradykinin and tissue inhibitors of metalloproteinase-4 were decreased in OA compared with normal joints. Monocyte chemoattractant protein 1 was identified as the most accurate marker to distinguish OA from normal joints. No correlation was detected between any OA biomarker concentration, individually or in combination, and severity of gait asymmetry at the walk. CONCLUSION: Differences in proinflammatory and anti-inflammatory biomarkers were detected between OA and normal joints, but no relationship was identified between biomarker concentrations and gait asymmetry in dogs with OA. CLINICAL IMPACT: This information will help guide future studies to elucidate how factors such as disease chronicity, severity, and etiology affect these relationships.

Citocinas/sangue , Citocinas/metabolismo , Doenças do Cão/metabolismo , Osteoartrite/veterinária , Líquido Sinovial/química , Animais , Biomarcadores/sangue , Biomarcadores/química , Doenças do Cão/sangue , Doenças do Cão/etiologia , Cães , Ensaio de Imunoadsorção Enzimática/veterinária , Coxeadura Animal/sangue , Coxeadura Animal/etiologia , Coxeadura Animal/metabolismo , Osteoartrite/sangue , Osteoartrite/complicações , Osteoartrite/metabolismo , Estudos Prospectivos
J Vet Emerg Crit Care (San Antonio) ; 26(6): 766-774, 2016 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-27074590


OBJECTIVE: To describe the successful use of an autotransfusion technique utilizing 2 syringes in 4 dogs. CASE SERIES SUMMARY: All 4 dogs in this series had a hemoabdomen and subsequent hypovolemic shock. During surgery blood was collected from the abdominal cavity by the surgeon and passed to an assistant. The blood was then transferred to a second syringe for direct IV administration. The blood was passed through an inline blood filter prior to reaching the patient. Given the transfusion volume and administration time frame, 3 cases were classified as a massive transfusion. All 4 dogs survived the transfusion, were discharged within 3 days of surgery/transfusion and no complications were noted. NEW OR UNIQUE INFORMATION PROVIDED: This case series describes a relatively simple method of performing an autotransfuion in patients with hemoabdomen and hypovolemic shock.

Transfusão de Sangue Autóloga/veterinária , Doenças do Cão/terapia , Hemoperitônio/veterinária , Hemorragia Pós-Operatória/veterinária , Animais , Transfusão de Sangue Autóloga/instrumentação , Cães , Feminino , Hemoperitônio/terapia , Histerectomia/veterinária , Masculino , Ovariectomia/veterinária , Hemorragia Pós-Operatória/terapia , Seringas/veterinária
Vet Rec Open ; 2(1): e000063, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-26392889


INTRODUCTION: Stem cell therapy used in clinical application of osteoarthritis in veterinary medicine typically involves intra-articular injection of the cells, however the effect of an osteoarthritic environment on the fate of the cells has not been investigated. AIMS AND OBJECTIVES: Assess the viability of adipose derived stromal cells following exposure to osteoarthritic joint fluid. MATERIALS AND METHODS: Adipose derived stromal cells (ASCs) were derived from falciform adipose tissue of five adult dogs, and osteoarthritic synovial fluid (SF) was obtained from ten patients undergoing surgical intervention on orthopedic diseases with secondary osteoarthritis. Normal synovial fluid was obtained from seven adult dogs from an unrelated study. ASCs were exposed to the following treatment conditions: culture medium, normal SF, osteoarthritic SF, or serial dilutions of 1:1 to 1:10 of osteoarthritic SF with media. Cells were then harvested and assessed for viability using trypan blue dye exclusion. RESULTS: There was no significant difference in the viability of cells in culture medium or normal SF. Significant differences were found between cells exposed to any concentration of osteoarthritic SF and normal SF and between cells exposed to undiluted osteoarthritic SF and all serial dilutions. Subsequent dilutions reduced cytotoxicity. CONCLUSIONS: Osteoarthritic synovial fluid in this ex vivo experiment is cytotoxic to ASCs, when compared with normal synovial fluid. Current practice of direct injection of ASCs into osteoarthritic joints should be re-evaluated to determine if alternative means of administration may be more effective.

J Am Anim Hosp Assoc ; 51(4): 231-8, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-26083443


This was a multi-institutional retrospective study evaluating the outcome and clinical parameters associated with the postoperative prognosis of 36 cats with splenic mast cell tumors treated with splenectomy. Clinical parameters reviewed included signalment, clinical history, results of staging tests, surgical variables, administration of blood products, presence of metastasis, postoperative complications, administration of chemotherapy postoperatively, chemotherapy protocol, and response to chemotherapy. Overall median survival time was 390 days (range, 2-1737 days). Administration of a blood product (P < .0001), metastasis to a regional lymph node (P = .022), and evidence of either concurrent or historical neoplasia (P = .037) were negatively associated with survival. Response to chemotherapy (P = .0008) was associated with an improved median survival time. Larger-scale prospective studies evaluating different chemotherapy protocols are required to elucidate the discrepancy between lack of survival benefit with administration of chemotherapy and improvement in survival time with positive response to chemotherapy.

Doenças do Gato/cirurgia , Mastocitoma/veterinária , Esplenectomia/veterinária , Neoplasias Esplênicas/veterinária , Animais , Antineoplásicos/uso terapêutico , Doenças do Gato/tratamento farmacológico , Doenças do Gato/mortalidade , Gatos , Feminino , Masculino , Mastocitoma/tratamento farmacológico , Mastocitoma/mortalidade , Mastocitoma/cirurgia , Assistência Perioperatória/veterinária , Prognóstico , Estudos Retrospectivos , Esplenectomia/mortalidade , Neoplasias Esplênicas/tratamento farmacológico , Neoplasias Esplênicas/mortalidade , Neoplasias Esplênicas/cirurgia
Front Vet Sci ; 2: 82, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-26835460


The objective of this study was to subjectively evaluate the harvest of two areas of adipose collection and three areas of bone marrow collection as potential sites for clinical harvest of adipose stromal vascular fraction (SVF) and bone marrow concentrate for clinical use by quantifying the amount of tissue harvested, subjective ease of harvest, the variation of each site, and determining the cell surface marker characteristics using commercially available antibodies. Bone marrow and adipose tissue samples were collected from 10 adult mixed breed dogs. Adipose tissue was collected from the caudal scapular region and falciform fat ligament. Bone marrow aspirates were collected from the ilium, humerus, and tibia. Tissues were weighed (adipose) or measured by volume (bone marrow), processed to isolate the SVF or bone marrow concentrate, and flow cytometry was performed to quantitate the percentage of cells that were CD90, CD44 positive, and CD45 negative. Sites and tissue types were compared using matched pairs t-test. Subjectively subcutaneous fat collection was the most difficult and large amounts of tissue dissection were necessary. Additionally the subcutaneous area yielded less than the goal amount of tissue. The bone marrow harvest ranged from 10 to 27.5 ml. Adipose tissue had the highest concentration of cells with CD90(+), CD44(+), and CD45(-) markers (P < 0.05), and bone marrow had the highest total number of these cells at harvest (P < 0.05). Variation was high for all sites, but the adipose collection yielded more consistent results. These results describe the relative cellular components in the SVF of adipose tissue and bone marrow as defined by the biomarkers chosen. Although bone marrow yielded higher absolute cell numbers on average, adipose tissue yielded more consistent results. Fat from the falciform ligament was easily obtained with less dissection and therefore created less perceived relative patient trauma.

J Am Anim Hosp Assoc ; 46(3): 181-5, 2010.
Artigo em Inglês | MEDLINE | ID: mdl-20439941


Two dogs that had ingested foreign bodies were presented with vomiting. The foreign bodies appeared as metal and dense on abdominal radiographs. Abdominal exploratory identified intestinal perforation in one case and gastrointestinal tissue trapped between the two foreign bodies adhered to each other in the second case. The foreign bodies were identified as magnets in one case and magnets and other metallic foreign bodies in the second case. Both dogs had excellent outcomes following surgical intervention. These cases demonstrate the danger of tissue entrapment between the foreign bodies as a result of the magnetic attraction between two objects. Dogs that are presented with a history of or are suspect for ingesting multiple magnets or a magnet and metal foreign bodies should be treated with surgical intervention because of the risk of gastrointestinal perforation as a result of magnetic attraction between the foreign bodies.

Doenças do Cão/cirurgia , Corpos Estranhos/veterinária , Animais , Doenças do Cão/diagnóstico , Cães , Feminino , Corpos Estranhos/complicações , Corpos Estranhos/diagnóstico , Corpos Estranhos/cirurgia , Perfuração Intestinal/diagnóstico , Perfuração Intestinal/etiologia , Perfuração Intestinal/cirurgia , Perfuração Intestinal/veterinária , Masculino , Resultado do Tratamento