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by KempyKolibri
258 days ago
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Where we agree is that oxidation of LDL is part of the atherogenesis pathway. However, I’m not aware of any evidence showing that higher oxLDL vs higher LDL entails greater risk. IIRC there is a paper that compared oxLDL to ApoB where ApoB was more strongly associated with risk, which doesn’t seem like it would be expected on your hypothesis. The response to retention hypothesis and the mechanistic evidence supporting it point to oxidation being inevitable once ApoB tagged lipoproteins are trapped in the arterial wall. That being the case, it would be moot whether it entered the wall in an oxidised state or not. So yes, oxLDL is one of the early stages of atherogenesis, but I’m not aware of any evidence that having LDL pre-oxidised before it’s trapped vs regular LDL increases risk. I’m always open to new evidence that would change my view, but that’s my understanding of the research landscape at the moment. |
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