TABLE 5.
Correlation matrix between sNGAL and uNGAL with blood and urine biomarkers pre and post competition (n = 7).
| Variables Pre-competition |
sNGAL | uNGAL | ||
| r | p | r | p | |
|
|
||||
| Lactate (mg/dL) | −0.60 | 0.14 | − | − |
| Cortisol (μg/dL) | 0.07 | 0.88 | − | − |
| Creatinine (mg/dL) | 0.10 | 0.82 | 0.37 | 0.46 |
| 8-isoprostane (pg/ml–1) | 0.68 | 0.23 | −0.80 | 0.06 |
| GPx (u/g Hb) | 0.46 | 0.08 | 0.05 | 0.92 |
| GFR (ml/min/1.73 m2) | − | − | −0.55 | 0.25 |
| Microalbuminuria (mg/L) | − | − | 0.73 | 0.09 |
| sNGAL (ng/ml) | − | − | −0.67 | 0.14 |
|
| ||||
|
Variables
Post-competition |
sNGAL | uNGAL | ||
|
|
||||
| r | p | r | p | |
|
| ||||
| Lactate (mg/dL) | −0.09 | 0.84 | − | − |
| Cortisol (μg/dL) | 0.57 | 0.23 | − | − |
| Creatinine (mg/dL) | 0.77 | 0.04* | 0.10 | 0.83 |
| 8-isoprostane (pg/ml–1) | 0.27 | 0.55 | 0.46 | 0.35 |
| GPx (u/g Hb) | 0.64 | 0.16 | −0.31 | 0.54 |
| GFR (ml/min/1.73 m2) | − | − | −0.16 | 0.75 |
| Microalbuminuria (mg/L) | − | − | 0.02 | 0.97 |
| sNGAL (ng/ml) | − | − | −0.33 | 0.51 |
GPx, glutathione peroxidase; GFR, glomerular filtration rate; sNGAL, serum; uNGAL, urinary neutrophil gelatinase-associated lipocalin; r, correlation coefficient; p, significance of the Pearson correlation test; mg/dL, milligrams per deciliter; μg/dL, micrograms per deciliter; pg/ml–1, pictograms per milliliter; u/g Hb, micrograms per gram of hemoglobin; ml/min/1.73 m2, milligrams per minute for each 1.73 m2; mg/L, milligrams per liter; ng/ml, nanograms per milliliter.
*The result was statistically significant (p < 0.05).