Journal of veterinary internal medicine · 2014
Iron status in blood donor dogs.
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Zaldívar-López S, Iazbik M C, Marín L M, Couto C G
Аннотация
BACKGROUND: Despite the popularity of canine blood donor (BD) programs, there is scarce scientific information regarding iron status in this canine population of dogs.
OBJECTIVE: To assess iron status in dogs used in a blood donor program.
ANIMALS: A total of 130 healthy dogs (75 BD, 55 controls [C]) were included. A subset of dogs (n = 12) were used to evaluate the effects of repetitive donations by having a second and more recent sample analyzed.
METHODS: Serum iron concentration (SI), unsaturated iron-binding capacity (UIBC), total iron-binding capacity (TIBC), and percentage transferrin saturation (%SAT) were obtained. Values were compared using a 2-way ANOVA (factors: BD status, breed). For the subset of BD, the first sample (less frequent donors -LD-, after a mean of 3.8 donations) was compared to a second sample (experienced donors -ED-, mean 13.6 donations) using a paired t-test.
RESULTS: SI (183.7 ± 55.3 μg/dL) and %SAT (55.7 ± 17.4%) were higher and UIBC (152.6 ± 73.3 μg/dL) was lower in BD dogs than in C (153.9 ± 51.7 μg/dL, 43.8 ± 17.8%, and 224.1 ± 120.6 μg/dL, respectively). Also, UIBC and TIBC were lower, and %SAT higher in Greyhounds when compared with non-Greyhounds. ED had decreased %SAT and increased UIBC and TIBC when compared with LD.
CONCLUSIONS AND CLINICAL IMPORTANCE: Our canine BD population did not have iron deficiency and had higher SI concentration than C. However, ED (~14 consecutive blood donations every ~8 weeks) developed a mild iron deficiency, although values were still within canine reference intervals. Greyhounds have higher %SAT than non-Greyhounds, which might be a breed-specific peculiarity.
OBJECTIVE: To assess iron status in dogs used in a blood donor program.
ANIMALS: A total of 130 healthy dogs (75 BD, 55 controls [C]) were included. A subset of dogs (n = 12) were used to evaluate the effects of repetitive donations by having a second and more recent sample analyzed.
METHODS: Serum iron concentration (SI), unsaturated iron-binding capacity (UIBC), total iron-binding capacity (TIBC), and percentage transferrin saturation (%SAT) were obtained. Values were compared using a 2-way ANOVA (factors: BD status, breed). For the subset of BD, the first sample (less frequent donors -LD-, after a mean of 3.8 donations) was compared to a second sample (experienced donors -ED-, mean 13.6 donations) using a paired t-test.
RESULTS: SI (183.7 ± 55.3 μg/dL) and %SAT (55.7 ± 17.4%) were higher and UIBC (152.6 ± 73.3 μg/dL) was lower in BD dogs than in C (153.9 ± 51.7 μg/dL, 43.8 ± 17.8%, and 224.1 ± 120.6 μg/dL, respectively). Also, UIBC and TIBC were lower, and %SAT higher in Greyhounds when compared with non-Greyhounds. ED had decreased %SAT and increased UIBC and TIBC when compared with LD.
CONCLUSIONS AND CLINICAL IMPORTANCE: Our canine BD population did not have iron deficiency and had higher SI concentration than C. However, ED (~14 consecutive blood donations every ~8 weeks) developed a mild iron deficiency, although values were still within canine reference intervals. Greyhounds have higher %SAT than non-Greyhounds, which might be a breed-specific peculiarity.