Search Results for: Genetics

Recommended reads: FDA warning on stem cells for pets, chromatin, aging & HSCs

Safari Stem Cell, stem cells for pets

When I first saw the new FDA warning on stem cells for pets and the logo for the company that received it, I was surprised in a few ways. I don’t recall ever seeing such a letter and the logo is something else. We’ll get into all of that in a moment, but first, since […]

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Recommended reads: John Cleese, surprising human embryo study, stem bank scandal, reprogramming & aging

John Cleese stem cells anti-aging, John Cleese

If you remember Monty Python, then you probably recall John Cleese. We’ll start with Cleese’s stem cell baloney. Not spam. Secret to eternal youth? John Cleese extols virtues of stem cell treatment, The Guardian. I’ve written before about John Cleese’s stem cell anti-aging efforts. As I told the author of The Guardian piece, I love

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Perspectives on new stem cells for paralysis paper & media coverage

stem cells for paralysis

A new paper on stem cells for paralysis from a Mayo Clinic team has sparked a bit of legitimate hope but also some hype in the media. The publication was in Nature Communications. It is entitled “Intrathecal delivery of adipose-derived mesenchymal stem cells in traumatic spinal cord injury: Phase I trial.” The approach was direct injection

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

The Screamers Science Hype Awards.

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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Holiday reads: woolly dog vs. mammoth, man eggs, designer B-cells, bluebird bio blues

woolly dog

What is a woolly dog? Is it somehow related to the Woolly Mammoth? Before we get into that and the rest of my recommended reads, note that I’m finalizing my list of contenders for this year’s The Screamers Science Hype Awards. Last year The BBC won The Screamers for an article “Baby’s life ‘probably saved’

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Biological age, health flexing, & stabs at rejuvenation

health flexing, biological age

We all know people who seem far younger than their age, which feeds into the idea of biological age. It’s often in the news these days and all over social media. Some people who are fighting high-profile battles with aging are also doing something I call “health flexing.” I also called these folks by another

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Weekly reads: new Sergiu Pasca pub, CRISPR chicken, human gene count update, stem cells in China

Sergiu Pasca, assembloid

Most of us have heard of organoids but what about the related model called an “assembloid”, which is a term growing in use including from organoid researcher Sergiu Pasca of Stanford? Before we jump into that, be sure to enter The Niche stem cell image contest for your chance to win $100 or some swag.

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Weekly reads: DNA methylation, H3 K27M in glioma, memory wipe, teeth

DNA methylation

I’ve been more interested in histones and their modifications versus DNA methylation when it comes to epigenetics and chromatin. In part this has just been because I have studied histones so much more. For example, we have been knocking out the two histone variant H3.3 genes, H3f3a and H3f3b, now for a decade. My lab also

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Is DNA methylation destiny? Diving into new epigenetic clock research

I’ve been thinking more about the steady stream of epigenetic clock research out there.  How convincing is the research on such clocks? Do they tightly relate to human biological age?  The related notion of turning back such hypothetical clocks to reverse aging is exciting but controversial. It doesn’t help that some are hyping all of

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Weekly reads: Sarepta, epigenomics, FDA on eyedrops

Sarepa CEO interview.

The biotech Sarepta has had a complicated go of it with the FDA sometimes related to their Duchenne muscular dystrophy (DMD) gene therapy efforts. In late 2016 I wrote about how there was some controversy as the FDA approved the Sarepta drug eteplirsen (Exondys 51) also for DMD, going against an advisory panel that had

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