Beta-2 Transferrin (Asialo Transferrin, CDT)
| Category | Biochemistry >> Proteins |
|---|---|
| Test background |
An asialo form of transferrin is produced in the cerebral parenchyma by lysosomal hydrolysis of the plasma derived protein from a sialic acid residue. Up to 30% of transferrin in lumbar CSF is in this asialo form. |
| Clinical Indications |
?CSF or Fluid. If a fluid sample is suspected of being CSF, e.g. in possible CSF rhinorrhea, confirmation can be obtained by demonstrating the presence of the asialo band by electrophoresis and immunofixation. |
| Reference range | N/A |
| Sample & container required | Fresh fluid sample with an accompanying serum sample |
| Sample volume | 50µl Fluid |
| Transport storage | Send to lab immediately. |
| Turnaround time | 1 Week (Samples are run as soon as possible on receipt to the Protein Lab; usually the same or next working day) |