Charles Brenner, PhD

Charles Brenner, PhD

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Biochemist known for NAD+ biology; shares critical analyses of NR/NMN and metabolism studies.

Chemical Reprogramming Triggers Toxic Lipid Droplets In Vivo
SocialMay 5, 2026

Chemical Reprogramming Triggers Toxic Lipid Droplets In Vivo

https://t.co/F6dZ4lFcUZ problem is that most groups don't publish negative results here's a recent paper from @gladyshev_lab showing that chemical reprogramming (yes, different thank OSKM) causes lipid droplet formation and significant in vivo toxicity

By Charles Brenner, PhD
Vaccines, Not Geroscience, Drove Lifespan Gains; GLP‑1s Now Hype
SocialMay 3, 2026

Vaccines, Not Geroscience, Drove Lifespan Gains; GLP‑1s Now Hype

fun facts: class of medicines that have most greatly extended human lifespan: vaccines class of medicines longevity docs are most excited by now: GLP1s did these come from geroscience? they did not by the way, NR didn't come from geroscience either

By Charles Brenner, PhD
Longevity Genes Trade Growth for Extended Lifespan
SocialMay 3, 2026

Longevity Genes Trade Growth for Extended Lifespan

if there were no aging, you would not have matured as a man in fact, the most powerful monogenic life-extending mutations in mice impair growth and maturation

By Charles Brenner, PhD
Curing Disease Doesn't Change Its Classification,
SocialMay 3, 2026

Curing Disease Doesn't Change Its Classification,

cool. as soon as you show me a worm or mouse you modify so that it doesn’t degrade or end life, i’ll accept your premise your position is it’s a disease if it’s curable now i want to know if you told...

By Charles Brenner, PhD
Unretracted Bad Papers Poison LLMs and Waste Resources
SocialMay 1, 2026

Unretracted Bad Papers Poison LLMs and Waste Resources

one of the problems with journals not retracting papers known to be wrong is that LLMs are mistrained, additional ppl are sent into rabbit holes, and the whole system wastes human & computational resources on 💩 RT w examples of papers...

By Charles Brenner, PhD
Exercise and Modest Protein Mimic Rapamycin’s Benefits,
SocialApr 16, 2026

Exercise and Modest Protein Mimic Rapamycin’s Benefits,

is the point as which Dr Pfleger wants to chime in on the expected longer term outcomes of protein maxing in humans?

By Charles Brenner, PhD
Questioning Geroscience: Shingles Vaccine Shows Unexpected Effects
SocialApr 15, 2026

Questioning Geroscience: Shingles Vaccine Shows Unexpected Effects

i don’t believe there is an evidence basis for the value proposition of the geroscience hypothesis shingles vaccination was targeted to a specific virus yet this one intervention prevents Alzheimer’s disease and increases all cause mortality is the geroscience hypothesis...

By Charles Brenner, PhD
Discrepancy in Mouse Counts Raises Partial Reprogramming Concerns
SocialApr 13, 2026

Discrepancy in Mouse Counts Raises Partial Reprogramming Concerns

okay, tell me why you think browder et al had 21 mice in -dox and only 15 mice in the +dox group when they did partial reprogramming? https://t.co/gedJiKSRKo 6 more mice in the dox group got tummy aches and asked out of...

By Charles Brenner, PhD
OSK Reprogramming Triggers Tumors, Undermining Mouse Study Confidence
SocialApr 13, 2026

OSK Reprogramming Triggers Tumors, Undermining Mouse Study Confidence

OSK reprogramming also produces tumors see https://t.co/dNhcHVSBf3 cancer is a selective process clones grow out because they have a proliferative advantage or apoptotic disadvantage when mouse papers say no cancer despite the fact that half of lab mice die from cancer, i don't feel...

By Charles Brenner, PhD
IPSC Therapies Succeed; In‑vivo Reprogramming Remains Hype
SocialApr 12, 2026

IPSC Therapies Succeed; In‑vivo Reprogramming Remains Hype

your regular reminder that Yamanaka factor-driven production of iPSCs is already producing real medicine (eg dopaminergic neural progenitor for Parkinson's, cardiomyocyte sheets for heart failure & more) iPSC tech is not done in vivo... ppl isolate the well behaved cells away...

By Charles Brenner, PhD
Shingles Vaccine Beats Geroscience in Reducing Dementia
SocialApr 7, 2026

Shingles Vaccine Beats Geroscience in Reducing Dementia

a different take: the shingles vaccine lowers dementia and all cause mortality and it’s targeted to a specific virus, not the process of aging so far the data say the score is shingles vaccine 1, geroscience hypothesis 0 and I could say the...

By Charles Brenner, PhD
Targeting “Zombie” Cells Misguided for Healthy Aging
SocialMar 18, 2026

Targeting “Zombie” Cells Misguided for Healthy Aging

it was always dumb to talk about killing so called zombie cells in the context of healthy aging

By Charles Brenner, PhD
Exploring Known and Unknowns in NAD Coenzyme Research
SocialMar 17, 2026

Exploring Known and Unknowns in NAD Coenzyme Research

looking forward to concluding next week's NAD for Health conference in Copenhagen with a talk on Known Knowns and Known Unknowns in NAD Coenzyme Research.... see you there https://t.co/hLAnAq7Fay

By Charles Brenner, PhD
NR/NMN Lack Human Anti‑Aging Proof, Only PAD Benefits
SocialMar 8, 2026

NR/NMN Lack Human Anti‑Aging Proof, Only PAD Benefits

stated as a critique but what does this mean as no drug has been demonstrated to have anti-aging effects in human clinical trials NR is active versus inflammaging and PAD, which is an age-related conditions affecting 10s of millions of americans you...

By Charles Brenner, PhD
Charles Brenner, PhD | Pulse