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Text
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<a href="http://doi.org/10.2460/ajvr.2001.62.1234" target="_blank" rel="noreferrer">http://doi.org/10.2460/ajvr.2001.62.1234</a>
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Title
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Metabolic alterations in dogs with osteosarcoma
Publisher
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American Journal Of Veterinary Research
Date
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2001
Subject
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Female; Male; Animals; Non-U.S. Gov't; Research Support; Energy Metabolism/physiology; Nutritional Failure; Densitometry; Dogs; Calorimetry; Bone Neoplasms/metabolism/veterinary; Dog Diseases/metabolism; Glucose/analysis/metabolism; Glycine/blood/metabolism/urine; Indirect/veterinary; Osteosarcoma/metabolism/veterinary; X-Ray/veterinary
Creator
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Mazzaferro EM; Hackett TB; Stein TP; Ogilvie GK; Wingfield WE; Walton J; Turner AS; Fettman MJ
Description
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OBJECTIVE: To evaluate changes in resting energy expenditure (REE) as well as protein and carbohydrate metabolism in dogs with osteosarcoma (OSA). ANIMALS: 15 weight-stable dogs with OSA that did not have other concurrent metabolic or endocrine illness and twelve 1-year-old sexually intact female Beagles (control dogs). PROCEDURES: Indirect calorimetry was performed on all dogs to determine REE and respiratory quotient (RQ). Stable isotope tracers (15N-glycine, 4.5 mg/kg of body weight, IV; 6,6-deuterium-glucose, 4.5 mg/kg, IV as a bolus, followed by continuous-rate infusion at 1.5 mg/kg/h for 3 hours) were used to determine rate of protein synthesis and glucose flux in all dogs. Dual-energy x-ray absorptiometry (DEXA) scans were performed to determine total body composition. RESULTS: Accounting for metabolic body size, REE in dogs with OSA was significantly higher before and after surgery, compared with REE of healthy control dogs. The RQ values did not differ significantly between groups. Dogs with OSA also had decreased rates of protein synthesis, increased urinary nitrogen loss, and increased glucose flux during the postoperative period. CONCLUSIONS AND CLINICAL RELEVANCE: Alterations in energy expenditure, protein synthesis, urinary nitrogen loss, and carbohydrate flux were evident in dogs with OSA, similar to results documented in humans with neoplasia. Changes were documented in REE as well as protein and carbohydrate metabolism in dogs with OSA. These changes were evident even in dogs that did not have clinical signs of cachexia.
2001
Identifier
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<a href="http://doi.org/10.2460/ajvr.2001.62.1234" target="_blank" rel="noreferrer">10.2460/ajvr.2001.62.1234</a>
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Article information provided for research and reference use only. PedPalASCNET does not hold any rights over the resource listed here. All rights are retained by the journal listed under publisher and/or the creator(s).
Type
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Journal Article
2001
American Journal Of Veterinary Research
Animals
Backlog
Bone Neoplasms/metabolism/veterinary
Calorimetry
Densitometry
Dog Diseases/metabolism
Dogs
Energy Metabolism/physiology
Female
Fettman MJ
Glucose/analysis/metabolism
Glycine/blood/metabolism/urine
Hackett TB
Indirect/veterinary
Journal Article
Male
Mazzaferro EM
Non-U.S. Gov't
Nutritional Failure
Ogilvie GK
Osteosarcoma/metabolism/veterinary
Research Support
Stein TP
Turner AS
Walton J
Wingfield WE
X-Ray/veterinary