Journal
JOURNAL OF VETERINARY INTERNAL MEDICINE
Volume 36, Issue 5, Pages 1607-1621Publisher
WILEY
DOI: 10.1111/jvim.16528
Keywords
alternative route; cobalamin deficiency; methylmalonic acid; small intestinal disease
Categories
Funding
- Nutramax Laboratories
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This study found that oral supplementation is an alternative to injectable supplementation for cobalamin supplementation in dogs with hypocobalaminemia caused by chronic enteropathy or exocrine pancreatic insufficiency.
Background Recent studies have shown similar efficacy of oral supplementation of cobalamin compared to injectable supplementation in dogs, but few prospective, randomized studies have been published. Objectives To evaluate efficacy of oral or injectable supplementation with cobalamin in normalizing serum cobalamin and methylmalonic acid (MMA) concentrations in dogs with hypocobalaminemia caused by either chronic enteropathy (CE) or exocrine pancreatic insufficiency (EPI). Animals Forty-six client owned dogs with hypocobalaminemia. Methods Prospective randomized clinical trial. Dogs were divided into 2 groups (CE or EPI), and randomized to receive oral or injectable supplementation of cobalamin. Each dog had 3 visits and serum cobalamin and MMA concentrations were measured at each visit. Results In dogs with CE, serum cobalamin concentrations increased with oral (P = .02; median 149 [range 149-231] to 733 [166-1467] ng/L, median difference 552 [95% CI: 181-899] ng/L) or injectable (P < .01; 168 [149-233] to 563 [234-965] ng/L, 367 [187-623] ng/L) supplementation. In dogs with EPI, serum cobalamin concentrations increased with oral (P = .01; 162 [149-214] to 919 [643-3863] ng/L, 705 [503-3356] ng/L) or injectable (P = .01; 177 [149-217] to 390 [243-907] ng/L, 192 [89-361] ng/L) supplementation. Serum MMA concentrations decreased with oral or injectable supplementation in dogs with CE, but only with oral supplementation in dogs with EPI. Conclusions and Clinical Importance Oral supplementation is an alternative for cobalamin supplementation in dogs with hypocobalaminemia caused by CE or EPI.
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