1/ I keep thinking about one exchange @ethanjweiss and I had on the #CholesterolScience broadcast... more so than any I've had in any prior interview before. I've cued it to the right timecode here:
2/ In this moment, we're talking about the finding of the 4S trial that @erreyedoc was mentioning (linked here). And in particular, we're talking about those with high LDL, high HDL, and low TG in the existing statin trial data would show a low risk group.
3/ I point out why I'm genuinely stunned this "positive" triad (and certainly one I'm focused on) hasn't garnered the attention of the medical community. Why wasn't there a push right there to better identify and understand if this specific group was being served by Rx treatment?
4/ @ethanjweiss correctly points out that the industry has no reason to shrink its market, which is understandable. That's not where my expectations are -- it's with the scientific community itself. We already had lots of studies on atherogenic dyslipidemia (⬇️HDL ⬆️TG ⬆️SDLDL)..
5/ Why wouldn't we have taken great interest on "reverse atherogenic dyslipidemia" where LDL is high, particularly in the wake of this post hoc study with 4S? To the best of my knowledge, we haven't seen another one since with any other drug trials.
6/ I hope @ethanjweiss is right in that data collection will require full transparency moving forward. I'm certainly interested in how all this applies to the triad of (⬆️LDL+⬆️HDL+⬇️TG).
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First, let me say that data on this has been a bit limited. But *IF* we do ultimately confirm there are more ApoB-48 (B48) than ApoB-100 (B100) in ASCVD plaque, it would be a very big deal.
Let's unpack...
2/ First, thanks to @TuckerGoodrich for pinging me on these pubs and pressing the discussion.
But also credit to @CaloriesProper on tweeting this a couple years ago (I missed it then)
To understand why this would be so important if true, some review...
3/ B48 and B100s are the major proteins on chylomicrons (CMs) and VLDLs, respectively.
CMs mostly carry lipids from the small intestine to the bloodstream (lipids consumed), VLDL mostly carry lipids from storage; predominantly from adipose stores.
#Me: Why would triglyceride rich LDL particles be more atherogenic than triglyceride poor LDL particles?
#ChatGPT: Triglyceride-rich LDL (low-density lipoprotein) particles are more atherogenic (i.e., more likely to contribute to the… twitter.com/i/web/status/1…
2/
#Me: Couldn’t it also be possible that triglyceride rich LDL are ultimately the result of metabolic dysfunction and that better explains its association with atherosclerosis?
#Me: Is it possible that almost the entire amount of atherogenesis associated with high triglyceride rich LDL is due to dysfunctional lipid metabolism and the diseases that result in these profiles rather than the LDL particles themselves?
1/🧵 I'm definitely a fan of both @DominicDAgosti2 and @DrRagnar (obviously), so I was excited to see them chatting about #lipids, #LMHRs, and Dom's consideration of increasing carbs to lower his #ApoB
3/ When chatting with Dom in SD last year for dinner, he mentioned focusing less on maintaining such a sizable muscle mass as he typically does, and I predicted he'd likely see his LDL/ApoB as considerably higher with this change if still #keto. This podcast appears to confirm...
But I also know many people in my own family who have struggled their whole lives to lose weight and assume if they don't have this near instant drop to their goal weight like <fill in the blank success story> then they are doing it all wrong...
... I can't tell you how many times I point out truly new, record-setting successes with people I know personally -- but it's their own record, their own health journey.
But they often can't see it because they hear they "won't be hungry anymore on <fill in blank diet>"...