Table 3.
Correlations between cyst fluid concentrations of serum proteins and hormones
| APOA1 | Albumin | SHBG | |
|---|---|---|---|
| (Mw 28) | (Mw 66) | (Mw ~ 100) | |
| IGF-1 | 0.52b | 0.34 | 0.47a |
| Insulin | 0.16 | − 0.03 | 0.13 |
| Erythropoietin | − 0.07 | − 0.28 | − 0.20 |
| Growth hormone | 0.57b | 0.54b | 0.65c |
| Testosterone | 0.20 | 0.45a | 0.27 |
| Estradiol | − 0.01 | 0.22 | 0.07 |
| Triiodothyronine | 0.48a | 0.30 | 0.05 |
| SHBG | 0.56b | 0.54b | |
| Albumin | 0.97c |
Cyst fluid from 25 patients with cystic glioblastomas were analyzed with respect to hormones and serum proteins, and MRIs were used to calculate the volumes of tumors and cysts. Correlations were calculated with Pearson’s test. Asterisks: ap < 0.05; bp < 0.01; cp < 0.001. Abbreviations: APOA1: apolipoprotein A–I; IGF-1: insulin-like growth factor 1; Mw: weight; SHBG: sex hormone-binding globulin