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Table 1 Serum thymidine kinase 1 (sTK1) activity and sTK1 protein concentration in sera from healthy dogs

From: Properties of cellular and serum forms of thymidine kinase 1 (TK1) in dogs with acute lymphocytic leukemia (ALL) and canine mammary tumors (CMTs): implications for TK1 as a proliferation biomarker

    sTK1 activity sTK1 concentration
Number Breed Age (yrs) (pmol/min/mL) (ng/mL)
    (Mean±SD)a (Mean±SD)b
1 Labrador Retriever 8 0.7±0.03 3±1
2 Bernese Mountain Dog 10 1.0±0.05 9±3
3 Labrador Retriever 5 0.5±0.04 4±2
4 Golden Retriever 6 0.4±0.02 7±3
5 Golden Retriever 5 1.0±0.06 15±4
6 German Shepherd 6 1.0±0.1 11±3
7 Riesenschnauzer 7 0.5±0.02 4±2
8 Mixed breed 6 0.5±0.05 12±5
9 Riesenschnauzer 8 0.6±0.04 10±4
10 German Shepherd 6 0.7±0.08 12±3
11 Rottweiler 5 0.5±0.03 7±3
12 English Springer Spaniel 3 1.3±0.09 8±2
13 Riesenschnauzer 7 1.4±0.12 13±4
14 Labrador Retriever 5 0.8±0.07 18±5
15 Labrador Retriever 6 0.7±0.03 5±3
16 Mixed breed 6 0.6±0.01 9±2
17 Bernese Mountain Dog 5 0.7±0.04 8±3
18 Dalmatian 6 0.5±0.03 4±2
19 Labrador Retriever 4 0.7±0.11 8±3
20 Golden Retriever 6 0.5±0.04 6±2
  1. aMean values of three observations from a single measurement occasion. bMean values of two observations from two independent experiments. SD = standard deviation.