Additional testing in a WHO collaborating laboratory may produce inconclusive or only weakly positive results.
Toluidine blue dyeing was weakly positive, and only a little cells expressed collagenⅡ.
In normal group and sham-operated group, Microglia in medullas including internal capsule and corpus callosum appeared weakly NGF as well as GDNF weakly positive.
Result Expression of CD44 in renal biopsy of controls was negative in the glomeruli and weakly positive in renal interstitium .
