UTSW genetic study confirms sarin nerve gas as cause of Gulf War illness

The gene in question is implicated in other functions as well.

PON1 was first discovered through its ability to hydrolyse and therefore detoxify organophosphorus compounds which are widely used as pesticides and nerve gases. Despite decades of research it is only now becoming clear that PON1 protects humans from the acute and chronic harmful effects of these compounds[20][21] Low PON1 activity found in children may increase their susceptibility to organophosphates.

Oxidised-lipids are the major cause of inflammation and are responsible for the initiation and/or propagation of several inflammatory diseases including atherosclerosis (heart disease and stroke), diabetes, liver and kidney diseases, rheumatic diseases, eye diseases (macular degeneration), cancer and HIV infection[citation needed]. Because of its ability to destroy oxidised-lipids PON1 appears to play some role in all these diseases. However, the greatest research interest has been the role of PON1 in atherosclerosis, where, because of its ability to remove harmful oxidised-lipids, PON1 protects against the development of atherosclerosis[22] Oxidized polyunsaturated fatty acids (notably in oxidized low-density lipoprotein) form lactone-like structures that are PON substrates.[23]

This says nothing about prognosis. Now we know for sure the cause, is there anything that can be done for these guys?

I thought gulf war syndrome was understood to be a ruse to get money from the VA... Maybe there's a kernel of truth here but that's what it became due to people abusing the system.