All posts by Paul Knoepfler

Paul Knoepfler is a Professor of Cell Biology & Human Anatomy at UC Davis School of Medicine. His lab's research is focused on epigenomic programming of stem cells and cancer. Knoepfler also does educational outreach including through his blog The Niche and writes a monthly column at STATNews. He is the author of three books including the most recent with his daughter Julie Knoepfler, How To Build A Dragon Or Die Trying: A Satirical Look At Cutting-edge Science.

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  • Paul Knoepfler is a Professor of Cell Biology & Human Anatomy at UC Davis School of Medicine. His lab's research is focused on epigenomic programming of stem cells and cancer. Knoepfler also does educational outreach including through his blog The Niche and writes a monthly column at STATNews. He is the author of three books including the most recent with his daughter Julie Knoepfler, How To Build A Dragon Or Die Trying: A Satirical Look At Cutting-edge Science.
Chemical structure diagram of cyclosporine, showing a complex cyclic peptide with multiple amino acid residues, double bonds, and distinct functional groups including amides, methyl groups, and hydroxyl groups.
PharmaceuticalsPolitics and RegulationScience and Medicine

The peptide craze sweeping America has a fan in RFK Jr

This could lead to less FDA oversight just when more is needed

/ February 9, 2026
LegalMedical EthicsPolitics and Regulation

Stem cell clinics and unapproved, for-profit human experimentation

Editor’s note: I met Dr. Paul Knoepfler online in the wake of my two posts on Gordie Howe and his stem cell treatment for stroke. I was impressed by his posts on the topic and what I saw at his own blog. Given that he’s a stem cell researcher, I wanted him to write a post on stem cell clinics like the...

/ January 19, 2015