However, FcRn antagonists with the ability to degrade the receptor, such as observed in vitro for batoclimab [237], could potentially prevent viral infection, and for specifically arteriviruses, it has been shown that orilanolimab can block infection of a range of cell lines [380]
Their primary applications are in managing type 2 diabetes and obesity due to their effects on insulin secretion, glucagon suppression, and appetite
Moreover, intrastriatal injections of HGF were successful in protecting neural progenitor cells from apoptosis in animal models of cerebral ischemia (Doeppner et al., 2011)
It has not been evaluated by the FDA for safety or efficacy in humans
It's now impossible to say whether that was true, or a placebo effect