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Weekly reads: MiMedX & Kimera Labs FDA warnings, NYT on Bryan Johnson, MUSE cell trial

January 21, 2024 / Professor Paul Knoepfler, Ph.D. / 10 Comments

Placental biologics firm MiMedx and exosome company Kimera Labs both recently received FDA warning letters. The letter to MiMedx was related to its placental biologics products and procedures. The new warning to Kimera Labs was about its exosome products and an amniotic product. Let’s compare these letters starting with the one to MiMedX. MiMedx warning letter […]

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Weekly reads: Vertex & CRISPR Therapeutics, Arnold Caplan death, MS genetics

January 14, 2024 / Professor Paul Knoepfler, Ph.D. / 5 Comments

The biotechs Vertex and CRISPR Therapeutics have an interesting relationship as biotechs. They are partners are multiple levels but also are very different as companies including in size. There’s been a key development in one of their partnerships. Before we jump into that, please check out the video version of my 20 stem cell and

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Weekly reads: game of clones, super-SOX, Moonwalk Bio, Great Wall’s living skin

January 7, 2024 / Professor Paul Knoepfler, Ph.D. / Leave a Comment

I’m trying to remember the first time I ever heard about clones. It had to be as a kid. Maybe in a monster movie or TV show? Possibly a clone was referred to by the more general term “double”, which is not necessarily a clone. Whatever it was, I’m sure as a kid that I

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20 stem cell & regenerative medicine predictions for 2024

January 3, 2024 / Professor Paul Knoepfler, Ph.D. / 4 Comments

Each year I make predictions for the stem cell and regenerative medicine field for the following year. Today’s prediction post is focused on what to expect in 2024. You can also see my stem cell predictions for 2023 and my grades on how I did. I also have made a video version of these predictions so please

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2023 The Screamers Science Hype Award goes to anti-aging media coverage

December 29, 2023 / Professor Paul Knoepfler, Ph.D. / 4 Comments

Every year I give out The Screamers Science Hype Award. The point of The Screamers is to raise awareness about science hype and catalyze new ways to combat it. In that spirit, I award what I see as the most extreme examples of science hype. Sometimes in addition to the one main winner, I give “honorable”

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Another kind of stem cell tragedy: William P. Murphy passes at 100

December 12, 2023 / Professor Paul Knoepfler, Ph.D. / 2 Comments

It’s kind of a tragedy that William P. Murphy, former chairman of unproven stem cell clinic firm, US Stem Cell, might be most remembered after his recent passing for his doings there. For example, I didn’t know until now of his prolific past as a biomedical inventor who did a lot of good. Instead, my impression of

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Can trying to cheat death paradoxically kill you sooner?

December 7, 2023 / Professor Paul Knoepfler, Ph.D. / 10 Comments

Can you paradoxically kill yourself early by trying to cheat Death? For example, die through risky anti-aging approaches? The question came to mind because such longevity efforts have become more extreme. They also get more hype in the media. I’ve been following the anti-aging space mainly because many interventions involve risky stem cell injections. Those

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Weekly reads: stem cells for MS, good news x2, extending dog years, Neuralink updates

December 3, 2023 / Professor Paul Knoepfler, Ph.D. / 2 Comments

For about as long as I’ve been writing The Niche, people have been asking about stem cells for MS. There’s a huge need for new therapies. While a chemo-based approach with autologous hematopoietic stem cell transplantation (HSCT) looks to work for certain cases of multiple sclerosis (although not yet approved in the US), other cell

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Review of Docere Clinics run by Harry Adelson including total-body injections

November 29, 2023 / Professor Paul Knoepfler, Ph.D. / 2 Comments

In today’s post, I reviewed a stem cell clinic firm called Docere Clinics. In my opinion, there are some concerning issues here and reasons for caution. One type of procedure at Docere is particularly surprising and raises risks in my view. What is Docere Clinics? | What kind of stem cells does Docere use? | What they

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Weekly reads: late Macchiarini retractions, stem cells & Lululemon

October 29, 2023 / Professor Paul Knoepfler, Ph.D. / 8 Comments

Paolo Macchiarini is one of a small group of people in the stem cell universe whose misconduct has blown up in the press. Piero Anversa, Haruko Obokata, Hwang Woo-Suk, and some operators in the unproven stem cell clinic sphere come to mind. Macchiarini published quite a few seriously problematic papers, some of which just hung

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