Prosaposin (PS) is a secretory neurotrophic factor. as well as a regulator of lysosomal enzymes. We previously reported the up-regulation of PS and the possibility of its axonal transport by GABAergic interneurons after exocitotoxicity induced by kainic acid (KA). a glutamate analog. https://www.parisnaturalfoodes.shop/product-category/blackberry-betty/