Table 1.
Anthropometric data of participants and respective BDNF concentrations in serum and EDTA-plasma.
| Measurements | Number of Participants (Male) | Number of Samples | Age (Years) ± SD | BMI (kg/m²) ± SD | Serum BDNF | EDTA-Plasma BDNF | ||
|---|---|---|---|---|---|---|---|---|
| ng/mL ± SD | CV | ng/mL ± SD | CV | |||||
| Group I | ||||||||
| Baseline (T1) | 15 (15) | 56 | 25.2 ± 2.9 | 24.6 ± 4.7 | 19.9 ± 5.6 | 28% | 3.2 ± 1.5 | 47% |
| 2 hrs storage at RT (T2) | 21.5 ± 4.9 | 23% | 3.4 ± 1.7 | 49% | ||||
| 2nd freeze/thaw cycle (T3) | 18.7 ± 6.0 | 32% | 3.1 ± 1.6 | 50% | ||||
| 6 months storage at −80 °C (T5) | 19.2 ± 4.4 | 23% | 3.7 ± 1.8 | 49% | ||||
| Group II | ||||||||
| Baseline | 21 (9) | 21 | 38.4 ± 11.8 | 22.9 ± 3.4 | 24.3 ± 5.9 | 24% | 5.1 ± 3.5 | 70% |
Mean ± standard deviation (SD). BDNF: brain-derived neurotrophic factor, BMI: body mass index, CV: coefficient of variation, EDTA: ethylenediaminetetraacetic acid, hrs: hours, RT: room temperature, T: time point.