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Hyperascorbaemia in dogs admitted to a teaching hospital intensive care unit. 2012

E Groth, and A Honaker, and K Osterbur, and S J Deitschel, and A O Odunayo, and C-H Chang, and A DeClue
Comparative Internal Medicine Laboratory, College of Veterinary Medicine, University of Missouri, Columbia, MO 65211, USA.

OBJECTIVE To determine whether or not dogs develop a deficiency of ascorbic acid during hospitalisation in an intensive care unit. METHODS Blood samples were collected daily for up to three days from dogs hospitalised in an intensive care unit for 36 to 72 hours (n = 16) or ê72 hours (n = 20) and from healthy dogs (n = 13). Plasma total ascorbic acid concentrations were measured using a colorimetric method involving a reaction between ascorbic acid, 2,6 dichlorophenol-indophenol, thiourea and dinitrophenyl hydrazine. Additionally, clinical data were recorded for each patient. RESULTS Dogs hospitalised for ê72 hours had significantly greater plasma ascorbic acid concentrations on day 3 compared to days 1 and 2. There was no difference in plasma ascorbic acid concentrations between days 1 and 2 for dogs hospitalised for 36 to 72 hours. Plasma ascorbic acid concentrations were significantly greater for each day of sampling for the hospitalised dogs compared to the control dogs. CONCLUSIONS Plasma ascorbic acid concentrations appear to increase during hospitalisation, and supplementation may not be indicated in dogs hospitalised in an intensive care unit.

UI MeSH Term Description Entries
D008297 Male Males
D003124 Colorimetry Any technique by which an unknown color is evaluated in terms of standard colors. The technique may be visual, photoelectric, or indirect by means of spectrophotometry. It is used in chemistry and physics. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)
D004283 Dog Diseases Diseases of the domestic dog (Canis familiaris). This term does not include diseases of wild dogs, WOLVES; FOXES; and other Canidae for which the heading CARNIVORA is used. Canine Diseases,Canine Disease,Disease, Canine,Disease, Dog,Diseases, Canine,Diseases, Dog,Dog Disease
D004285 Dogs The domestic dog, Canis familiaris, comprising about 400 breeds, of the carnivore family CANIDAE. They are worldwide in distribution and live in association with people. (Walker's Mammals of the World, 5th ed, p1065) Canis familiaris,Dog
D005260 Female Females
D006762 Hospitals, Animal Facility for in-house medical care of animals. Animal Hospitals,Hospitals, Veterinary,Veterinary Clinics,Veterinary Hospitals,Clinics, Veterinary,Animal Hospital,Clinic, Veterinary,Hospital, Animal,Hospital, Veterinary,Veterinary Clinic,Veterinary Hospital
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D001205 Ascorbic Acid A six carbon compound related to glucose. It is found naturally in citrus fruits and many vegetables. Ascorbic acid is an essential nutrient in human diets, and necessary to maintain connective tissue and bone. Its biologically active form, vitamin C, functions as a reducing agent and coenzyme in several metabolic pathways. Vitamin C is considered an antioxidant. Vitamin C,Ascorbic Acid, Monosodium Salt,Ferrous Ascorbate,Hybrin,L-Ascorbic Acid,Magnesium Ascorbate,Magnesium Ascorbicum,Magnesium di-L-Ascorbate,Magnorbin,Sodium Ascorbate,Acid, Ascorbic,Acid, L-Ascorbic,Ascorbate, Ferrous,Ascorbate, Magnesium,Ascorbate, Sodium,L Ascorbic Acid,Magnesium di L Ascorbate,di-L-Ascorbate, Magnesium
D001206 Ascorbic Acid Deficiency A condition due to a dietary deficiency of ascorbic acid (vitamin C), characterized by malaise, lethargy, and weakness. As the disease progresses, joints, muscles, and subcutaneous tissues may become the sites of hemorrhage. Ascorbic acid deficiency frequently develops into SCURVY in young children fed unsupplemented cow's milk exclusively during their first year. It develops also commonly in chronic alcoholism. (Cecil Textbook of Medicine, 19th ed, p1177) Vitamin C Deficiency,Deficiency, Ascorbic Acid,Deficiency, Vitamin C,Ascorbic Acid Deficiencies,Deficiencies, Ascorbic Acid,Deficiencies, Vitamin C,Vitamin C Deficiencies
D012720 Severity of Illness Index Levels within a diagnostic group which are established by various measurement criteria applied to the seriousness of a patient's disorder. Illness Index Severities,Illness Index Severity

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