julia.endo said:I want to bring up the cardiovascular angle on cardiovascular risk.
I read this differently from julia.endo, on substance rather than tone. The "earlier than weight loss explains" argument is weaker than this thread makes it sound. Blood pressure and inflammatory markers move fast and are downstream of early weight loss, so the mechanism is not as cleanly separable as the summaries imply.
Correct me if the detail matters more than I have assumed.
DanielChem_CHI said:My reason for being on this is cardiovascular rather than cosmetic, which puts me in a small minority in most of these threads.
Mendelian randomization evidence supporting GLP-1 pathway modulation for cardiovascular risk: genetic variants in the GLP1R gene region associated with lower BMI also show associations with reduced cardiovascular risk, confirming a causal pathway[1].
This "natural experiment" (people born with genetically higher GLP-1 signaling being leaner and healthier) provides orthogonal evidence supporting the pharmacological approach. When genetic epidemiology, clinical trials, and mechanistic studies all converge, confidence in the therapeutic approach is high.
[1] Zheng SL, et al. Lancet Diabetes Endocrinol. 2023;11(12):869-879.
NeuroNate said:The "earlier than weight loss explains" argument is weaker than this thread makes it sound.
SUSTAIN-6 was the first CVOT to show cardiovascular benefit with semaglutide, relevant to cardiovascular risk. In 3,297 T2DM patients with high CV risk: MACE HR 0.74 (95% CI 0.58-0.95, p=0.02)[1].
Notable: the retinopathy signal in SUSTAIN-6 (HR 1.76) was subsequently attributed to rapid A1C reduction in patients with pre-existing retinopathy — not a direct drug effect. This has been confirmed in longer-term follow-up studies.
[1] Marso SP, et al. N Engl J Med. 2016;375(19):1834-1844.
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Browse GL BiochemA narrower follow-up, since the general answer is now clear:
Was that from a primary source or from a summary of one?
Dr.NateNeph said:SUSTAIN-6 was the first CVOT to show cardiovascular benefit with semaglutide, relevant to cardiovascular risk.
I'm 58 years old and want to share my perspective on cardiovascular risk as an older member of this community.
My doctor was initially hesitant because of my age, but the SELECT trial included patients up to 72 and showed consistent benefit across age groups. We started at the lowest dose with closer monitoring.
11 months later: down 48 lbs, off metoprolol, A1C from 7.6% to 5.3%. My cardiologist is thrilled. cardiovascular risk is absolutely relevant for older adults — don't let anyone tell you otherwise.