Nutritional status, energy expenditure, and protein oxidative stress after kidney transplantation

Figures & data

Table 1. Significant changes in biochemical analyses between the two evaluated periods.

Variable	First evaluation		Second evaluation		Mean difference	P value
	Mean	Standard deviation	Mean	Standard deviation
Albumin (g/dl)	4.0	0.37	4.35	0.24	+9.59%	<0.01
Total Protein (g/dl)	6.5	0.66	6.92	0.43	+7.45%	<0.01
AOPP (mmol/l)	91.08	4.36	64.52	3.16	−29.02%	<0.01
Ratio albumin/AOPP	22.97	2.30	14.87	1.0	−34.83%	<0.0001
Urea (mg/dl)	69.6	29.85	51.17	18.1	−21.11%	<0.01
Creatinine (mg/dl)	1.96	0.85	1.65	0.59	−10.22%	<0.01
GFR estimated (mL/min/1.73 m²)	42.29	16.62	49.40	18.05	+25.94%	0.02

Note: AOPP: advanced oxidation protein products; GFR: glomerular filtration rate. All differences are significant (P < 0.05).

Table 2. Significant changes in anthropometry and body composition between the two evaluated periods.

Variable	First evaluation		Second evaluation		Mean difference	P value
	Mean	Standard deviation	Mean	Standard deviation
Weight (kg)	63.89	12.27	67.16	13.04	+5.21%	<0.01
BMI (k/m^2)	23.67	3.77	24.88	4.01	+5.22%	<0.01
Lean body mass (kg)	49.09	10.63	50.59	10.61	+3.68%	0.02
Fat mass (kg)	14.81	5.99	16.58	6.25	+17.56%	<0.01
Fat mass (%)	23.16	7.80	24.54	7.01	+11.97%	0.04
REE/weight (kcal/kg)	24.23	5.17	21.97	4.61	−6.85%	0.03

Note: BMI: body mass index; AOPP: advanced oxidation protein products; REE: resting energy expenditure. All differences are significant (P < 0.05).

Table 3. Comparisons between groups with rejection (WR) and without rejection (WOR).

Variable	First evaluation
	Mean ± SD	Value
Weight gain (kg) WOR group	0.14 ± 0.5	0.01
Weight gain (kg) WR group	1.42 ± 2.96
Albumin (g/dl) group WOR	4.09 ± 0.36	<0.01
Albumin (g/dl) group WR	3.69 ± 0.24
Total protein (g/dl) WOR group	6.66 ± 0.61	0.01
Total protein (g/dl) WR group	5.99 ± 0.57

Note: SD: standard deviation. All differences are significant (P < 0.05).

Figure 1. Graphic presentation of the correlations between CIT and the Δ Vitamin C, and between the time of hospitalization and Δ AOPP.

Table 4. Correlations between the studied variables.

Variables	ρ	IC	Value
CIT × Δ Vitamin C	−0.3751	−0.6296; −0.0478	0.0257
Length of Stay × Δ AOPP	0.4396	0.1246;   0.6741	0.0076
Usual weight (kg) × Δ glucose	0.3421	0.0100;   0.6062	0.0437
Usual weight (kg) × Δ FM (kg)	0.3406	0.0083 ; 0.6051	0.0447
Δ Total protein × Δ REE	−0.3493	−0.6114; −0.0182	0.0391
Δ Total protein × Δ IF	−0.3514	−0.6129; −0.0206	0.0378

Note: (ρ): Spearman correlation coefficient; CI: confidence interval; FM: fat mass; REE: resting energy expenditure; IF: injury factor.