Search Results for: r3 stem

Fact-checking troubling R3 Stem Cell clinic chain

Map of R3 stem cell clinic locations

I’ve had concerns about an American unproven clinic firm called R3 Stem Cell for many years. They sell unproven stem cell-related “treatments” via dozens of affiliated locations. I put quotes around treatments because in my view there is no good evidence here for claims of treating numerous serious illnesses. The goal of today’s post is …

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R3 Stem Cell still raises red flags for me after FDA letter including do one-get one meeting

R3-Stem-Cell-Course

Back in May, the FDA cautioned a stem cell clinic firm called R3 Stem Cell and its leader David Greene about what they were doing. Importantly, the agency indicated that some of R3’s stem cells may be unapproved drug products. FDA and R3 Stem Cell While the FDA didn’t send R3 Stem Cell a formal warning …

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FDA cautions R3 Stem Cell & 50+ stem cell clinic affiliates

R3-Stem-Cell-testimonials

Today the FDA put an Arizona firm called R3 Stem Cell, LLC and its leader Dr. David Greene on notice that what they and 50+ affiliates centers are selling in the way of stem cells were not approved by the agency. R3 Stem Cell markets perinatal (birth-related) stem cell offerings on its website. There’s a …

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Top stem cell stories of 2021: COVID, diabetes, human embryos, clinics in court

regenerative medicine, stem cells 2021

The past year was all over the place for the stem cell and regenerative medicine field. As you can see in my scoring of my 21 predictions for 2021, quite a few things were surprises in terms of what did and didn’t happen. Here’s an overview of the top stories of the year in our …

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Weekly stem cell reads: pending FDA verdict, blood vessels, RA

Cellular populations in the vascular wall, stem cell niche

Any day now we should get the verdict from the judge in the big stem cell clinic case here in California against Cell Surgical Network, et al. It seems that the FDA is waiting on this verdict before taking some major actions. If the judge rules against the agency it could throw the area into …

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Weekly reads: Bezos & stem cells for anti-aging, Myc, more

young blood, stem cells anti-aging

Stem cells may have anti-aging properties, but they are unlikely to be a real fountain of youth. Even so, people are obsessed with aging and stem cells regularly are thought of as “the ticket” for fighting aging. I’ll start today’s recommended reads with that topic and then go on to list some interesting papers of …

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Clinics turning to potentially dangerous intranasal stem cell delivery

Intranasal stem cells trial map from Clinicaltrials.gov

Because of blogging here on The Niche and people giving me tips I often can see trends before they fully surface and a troubling new one is intranasal stem cell delivery by unproven clinics. Over the past year I have heard of many clinics now offering this approach. I’ve seen this in marketing and heard …

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Weekly reads: cancer stem cells & other pubs plus a puzzler

kyu yum nature cancer stem cells niche

Cancer stem cells are one of the most interesting areas of research, intersecting the stem cell and cancer fields. Today’s weekly reads post highlights some new cancer stem cell articles along with some other interesting papers. I also note a recent weak stem cell clinical trial paper that is not a recommended read but is …

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Spicy stem cell pathways & other recommended reads

Nociceptor-mediated HSC mobilization. "Schematic representation showing that nociceptive-nerve-derived CGRP, but not substance P, acts via CGRP receptors on HSCs to enhance their mobilization via a cAMP-mediated signalling pathway. "Gao et al Nature, Capsaicin acts via nociceptor signaling to mobilize blood stem cells.

The stem cell paper of the week is a fun one about how capsaicin and nociceptors reportedly mobilize blood stem cells.  However, since the authors only show this in mice, could it also happen in humans? They argue it’s likely happening in people too. Note that nociceptors are special structures in our bodies that sense …

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