金沙城中心游戏平台

金沙城中心游戏:Should they have known ?

作者:厍萱    发布时间:2019-03-07 04:18:09    

By Debora MacKenzie ANY risk that a drug given to troops to protect them from nerve agents might have caused long-term adverse effects should have emerged from research carried out ten years before the Gulf War at Britain’s main chemical defence laboratory. Pyridostigmine bromide (PB) was developed at Porton Down in Wiltshire as a “pre-treatment” to offset the effects of the chemical weapons sarin and soman. But the laboratory has never monitored its long-term effects, or those of the weapons themselves, on its human test subjects. Chemical weapons expert Alastair Hay of the University of Leeds says that Porton Down tested the effectiveness of PB in protecting against subsequent exposure to sarin in 300 human volunteers and published the results in 1981. “If pyridostigmine is involved in Gulf War syndrome, symptoms would have shown up before the war,” he notes. “But Porton Down has never done any follow-up on those people.” Porton Down refused to comment on the issue to New Scientist, but has long maintained that the tests caused no health damage. However, PB inhibits the same enzyme as the nerve agents sarin and soman. Troops may have suffered the same effects as sub-lethal exposure to the nerve agents while they were under orders to take PB tablets three times a day. “Soldiers were forgetting to take their pyridostigmine, then taking two or three pills at a time,” says Hay. Porton Down has conducted extensive tests on the acute effects of sarin on human volunteers but has not monitored chronic effects. One subject, Ronald Maddison,

 

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