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Glossary Blood Cells

cellular components of blood involved in oxygen transport and immunity

Blood cells are the cellular components of blood, primarily including red blood cells (RBCs), white blood cells (WBCs), and platelets. Red blood cells are responsible for transporting oxygen from the lungs to the rest of the body and returning carbon dioxide for exhalation. White blood cells are part of the immune system and help defend the body against infections and foreign invaders. Platelets are involved in blood clotting, which helps prevent excessive bleeding when injuries occur.

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Research

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research Somatic stem cell heterogeneity: diversity in the blood, skin and intestinal stem cell compartments

137 citations , April 2015 in “Nature Reviews Molecular Cell Biology”

This review discusses the distinct roles and surprising developmental flexibility of multiple somatic stem cell types in tissue maintenance and repair, reporting no new results but highlighting emerging questions about their regulation and origins.

research Characterization of human dermal sheath cells reveals CD36-expressing perivascular cells associated with capillary blood vessel formation in hair follicles

16 citations , July 2019 in “Biochemical and Biophysical Research Communications”

This study concluded that CD36-expressing dermal sheath cells may influence the modulation of blood capillaries in hair follicles, potentially affecting hair cycling.

research Nascent blood vessels in the skin arise from nestin-expressing hair-follicle cells

212 citations , August 2004 in “Proceedings of the National Academy of Sciences”

This study found that nestin-driven GFP labels blood vessels originating from hair follicles in mice, which could be used to study early events in skin angiogenesis and for antiangiogenesis drug screening.

research Small extracellular vesicles from menstrual blood-derived mesenchymal stem cells (MenSCs) as a novel therapeutic impetus in regenerative medicine

116 citations , August 2021 in “Stem Cell Research & Therapy”

This paper reviews the emerging potential of menstrual blood-derived mesenchymal stem cell extracellular vesicles in regenerative medicine, highlighting their promise for treating several diseases without providing new clinical results.

Impaired Responses of Peripheral Blood Mononuclear Cells to T-Cell Stimulants in Alopecia Areata Patients with a Poor Response to Topical Immunotherapy

research Impaired responses of peripheral blood mononuclear cells to T-cell stimulants in alopecia areata patients with a poor response to topical immunotherapy

4 citations , July 2008 in “British journal of dermatology/British journal of dermatology, Supplement”

This study found that alopecia areata patients who responded poorly to topical immunotherapy had impaired peripheral blood mononuclear cell responses to T-cell stimulants.

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Community Join

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community How Does Exosome Therapy Work for Hair Loss?

in Research/Science 5 upvotes 2 years ago

Exosome hair therapy involves injecting stem cell-derived exosomes into the scalp to boost hair follicle regeneration and repair. Exosomes, which are not stem cells but products of them, contain bioactive chemicals and specific growth factors that promote new blood vessel formation, increase cell proliferation, reduce inflammation, and improve tissue repair, all crucial for hair health.

community Opinions on best microneedling protocol? Some thoughts...

11 upvotes 3 years ago

Microneedling can enhance hair growth by improving minoxidil absorption and stimulating blood flow. Users discuss optimal needle depths, with some favoring shallow frequent needling for better absorption and others preferring deeper needling for stem cell activation.

community How to increase graft survivability after HT?

6 upvotes 2 years ago

A user is seeking advice on increasing graft survivability after a hair transplant, mentioning PRP, Mesotherapy, Stem Cell injections, and considering L-Arginine before starting Minoxidil. They are looking for ways to support blood flow before applying Minoxidil.

community What do you guys think of stem cell hai restoration?

10 upvotes 8 months ago

Stem cell hair restoration lacks scientific evidence and is often considered a scam. Effective hair loss treatments include hair transplants, Minoxidil, and Finasteride, but stem cell treatments are not proven.

community Stem cells for hair, does it work?

in Technology 8 upvotes 9 months ago

Stem cell treatments for hair restoration can be effective, but results vary and depend on factors like the type of stem cells used and timing of treatment. PRP and exosomes have shown some success, while costs and effectiveness differ by location, with South Korea and Turkey offering more affordable options.

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Learn

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learn Centella

Ever wonder why your hair doesn’t grow back thick anymore? Maybe your scalp needs better blood flow: centella could help. There is no clinical trial of centella asiatica for hair loss and no study measuring scalp blood flow in people using it; the only hair-related evidence is a 2017 cell-culture study. Centella products are cosmetics that may soothe an irritated scalp, and the link between scalp circulation and pattern hair loss is itself unproven.

learn Stem Cell Factor

learn Platelet-Rich Plasma

growth factors taken from your blood and injected into your scalp to stimulate hair

What is Platelet-Derived Growth Factor Beta Polypeptide, and how does it help stimulate new hair growth? PDGF-BB is a growth factor that signals to dermal papilla cells and promotes blood-vessel formation; mouse studies report it can push follicles into the growth phase, and human evidence comes only indirectly from PRP trials. No PDGF product is approved for hair restoration and there is no published human trial of PDGF-BB on its own.

learn SCUBE3

How does SCUBE3 work on hair follicles compared to treatments like minoxidil or finasteride? Laboratory research in mice reports that SCUBE3, a protein released by dermal papilla cells, signals dormant follicles to grow through the TGF-β pathway downstream of Hedgehog; minoxidil and finasteride instead work on blood flow to the follicle and on DHT, and unlike SCUBE3 they have decades of human trial data behind them. SCUBE3 has not been tested in human clinical trials and is not available as a medicine.

learn Osteopontin

signaling protein that, when suppressed, may grow hair by reducing inflammation and stem cell loss

learn Follistatin

glycoprotein that inhibits TGF-β and promotes hair growth by antagonizing activin

learn Vascular Endothelial Growth Factor

Can products that stimulate Vascular Endothelial Growth Factor (VEGF) improve blood flow to hair follicles? Yes, products that stimulate VEGF may improve blood flow to hair follicles.

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