Table 4.
Samples in the National Amyotrophic Lateral Sclerosis Biorepository, as of April 30, 2020
| Sample type | Current No. of samples in Biorepository | Sample size/aliquots | No. of researchers requesting samplesa | No. of samples distributed |
|---|---|---|---|---|
| In-home samples | ||||
| Buffy coat | 274 | 1.0mL | ||
| DNA | 22,496 | 2 μg | 2 | 1740 |
| Fingernails | 268 | 10 Nails/vial | 1 | 330 |
| Hair | 241 | 1 Vial | 1 | 330 |
| PBMCs from blood | 1450 | 500,000 Cells/vial | 1 | 350 |
| Plasma | 9719 | 0.5 mL | 3 | 304 |
| RNA | 9466 | 2 μg | — | — |
| RBC | 3850 | 1.0mL | — | — |
| Serum | 7149 | 0.5 mL | 3 | 1883 |
| Urine | 10,046 | 1.8 mL | 1 | 1806 |
| Urine with sulfamic acid | 690 | 4.5 mL | 1 | 587 |
| Whole blood | 2751 | 1.8 mL | 3 | 1290 |
| Postmortem samples | ||||
| Bone | 48 | 1″ Piece | — | — |
| Brain | 48 | Fixed and frozen | 3 | 56 |
| CSF | 328 | 1 cc vials | — | — |
| Human primary cells from postmortem skin | 680 | 500,000 Cells/vial | 2 | 16 |
| Muscle | 49 | 1″ Piece | — | — |
| Spinal cord | 47 | Fixed and frozen | 2 | 49 |
| Total | 69,600 | 8741 | ||
a
Some researchers received more than one sample type, thus count will not add up to the total number of researchers requesting samples (13).
PBMCs, peripheral blood mononuclear cells; RBC, red blood cells.