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. 2023 Sep 29;101:skad332. doi: 10.1093/jas/skad332

Table 4.

Change from baseline serum metabolite concentrations of overweight cats during weight loss

Δ wk0-wk6 Δ wk0-wk12 Δ wk0-wk18 Δ wk0-wk24 P-value
Item FT1 OR1 FT1 OR1 FT1 OR1 FT1 OR1 SEM3 Diet Week Diet*wk
Creatinine, mg/dL 0.11 0.15 0.14 0.09 0.25 0.20 0.14 0.17 0.05 0.9721 0.0023 0.1634
BUN, mg/dL2 1.00 0.36 1.64 0.73 1.09 0.55 0.91 1.18 0.75 0.6350 0.5448 0.4885
Calcium, mg/dL 0.19 0.26 0.25 0.33 0.11 0.24 0.26 0.34 0.07 0.2969 0.0510 0.9187
Phosphorus, mg/dL −0.10 −0.09 −0.33 −0.30 −0.58 −0.08 −0.46 −0.22 0.15 0.1996 0.0963 0.1434
Glucose, mg/dL 7.91 −23.00 7.64 −30.18 −10.55 −16.36 −5.36 −43.18 20.16 0.0227 0.9140 N/A4
Total cholesterol, mg/dL −42.09 −5.91 −42.64 1.91 −42.18 −4.55 −48.73 −11.64 9.10 0.0290 0.5381 0.5881
Triglycerides, mg/dL −3.36ab 3.09a 2.27ab 0.82ab −11.45ab −4.73ab −21.00b −6.36ab 5.30 0.0474 <0.0001 0.0039
Bicarbonate −0.82 −0.91 −0.46 −0.82 −0.73 −0.18 −0.27 −0.46 0.30 0.9401 0.2007 0.2316
Total protein, g/dL −0.06 0.03 −0.15 −0.07 −0.18 −0.13 0.17 0.09 0.08 0.7015 <0.0001 0.3528
Albumin, g/dL −0.04 −0.02 0 0.03 −0.04 −0.01 −0.11 −0.10 0.04 0.6316 0.0001 0.9945
Globulin, g/dL −0.03 0.05 −0.15 −0.10 −0.15 −0.12 0.28 −0.18 0.06 0.6988 <0.0001 0.4636
Sodium, mmol/L 1.64 1.64 1.64 1.36 2.18 1.00 0.91 0.27 0.53 0.7652 0.0032 0.5630
Potassium, mmol/L −0.23 −0.05 −0.14 0.01 −0.07 0.16 −0.12 0.08 0.18 0.4820 0.6989 N/A4
Chloride, mmol/L 1.64 1.82 2.55 2.73 2.91 2.27 1.91 1.64 0.42 0.7672 0.0035 0.4920
Total ALP, U/L2 3.73 5.64 2.64 2.45 1.55 2.09 −2.27 −2.00 1.08 0.6384 <0.0001 0.3809
ALT, U/L2 8.55 11.27 18.73 8.91 9.45 8.27 6.55 9.73 5.44 0.9496 0.0412 0.0671
CPK, U/L2 2.45 −9.73 −18.64 −0.55 −23.36 −10.91 21.27 −10.82 27.05 0.4999 0.0043 0.5550
A/G2 ratio −0.02 −0.01 0.05 0.06 0.02 0.04 −0.10 −0.05 0.02 0.4673 <0.0001 0.5399
Na/K ratio 3.09 1.18 2.00 0.18 1.36 −1.09 1.27 −1.00 1.94 0.3816 0.7157 0.8666
Anion gap 0.55 0.73 −0.55 −0.36 −0.09 −0.64 −0.73 −0.73 0.46 0.9236 0.0023 0.6950

1FT, Fit & Trim (Orijen; Champion Petfoods, Edmonton, Canada); OR, Original (Orijen; Champion Petfoods, Edmonton, Canada).

2BUN, blood urea nitrogen; total ALP, total alkaline phosphatase; ALT, alanine aminotransferase; CPK, creatinine phosphokinase; A/G, albumin/globulin.

3SEM, pooled standard error of the means.

4N/A, Wilcoxon signed ranks test; no interaction effect between diet and week.

a,bMean values within the same row with unlike superscript letters differ significantly (P < 0.05) and relate to the interaction.