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Glossary In Vitro Models

experimental systems studying biological processes outside living organisms

In Vitro Models refer to experimental systems used to study biological processes outside of a living organism, typically in a controlled laboratory environment. These models often involve the use of cell cultures or tissue samples to investigate cellular behaviors, drug responses, or disease mechanisms, providing valuable insights without the ethical and practical complexities of in vivo (within a living organism) studies.

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Research

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research Development and validation of a comprehensive in vitro organ model for androgenetic alopecia

June 2026 in “BMC Biotechnology”

In this study, researchers developed a new human in vitro model for male androgenetic alopecia that replicates key features of the disorder, providing an effective platform for studying hair loss mechanisms and testing potential treatments.

research β-Catenin is involved in oleanolic acid-dependent promotion of proliferation in human hair matrix cells in an in vitro organ culture model

14 citations , July 2017 in “Fitoterapia”

In this study, oleanolic acid was found to enhance hair follicle growth and promote hair matrix cell proliferation via the Wnt/β-catenin pathway in a human hair follicle organ culture model.

research Identification of human hair follicle antigens targeted in the presumptive autoimmune hair follicle disorder alopecia areata and their potential functional relevance in vitro : methods development for isolation and identification of alopecia areata-relevant human hair follicle antigens using a proteomics approach and their functional assessment using an ex vivo hair follicle organ culture model

January 2008 in “Bradford Scholars (University of Bradford)”

This study supports that an antibody response against anagen-specific hair follicle antigens, including trichohyalin and keratin 16, may play a role in alopecia areata.

research Skin and hair on-a-chip: in vitro skin models versus ex vivo tissue maintenance with dynamic perfusion

208 citations , January 2013 in “Lab on a Chip”

The researchers described a chip-based bioreactor platform for dynamic perfusion, which may enhance in vitro skin models by introducing mechanical shear stress and extending culture periods.

research Bioengineering a 3D integumentary organ system from iPS cells using an in vivo transplantation model

77 citations , April 2016 in “Science Advances”

Researchers created a fully functional, bioengineered skin system with hair from stem cells that successfully integrated when transplanted into mice.

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community Youre missing something in your battle against hairloss.

33 upvotes 1 year ago

Moringa extract and oil are suggested to help with hair loss, with some users combining it with treatments like minoxidil, finasteride, and dutasteride. Moringa is claimed to improve hair growth and health, but evidence is mostly anecdotal.

community Creatine is the opposite of minoxidil !

324 upvotes 11 months ago

Creatine may counteract minoxidil's hair growth effects by closing potassium ATP channels, potentially leading to hair loss in predisposed individuals. Despite anecdotal reports, there is no conclusive evidence linking creatine to hair loss.

community Everything you ever wanted to know about Pelage Pharma's PP405: how it works and what to expect

126 upvotes 3 months ago

PP405 may encourage earlier hair growth and slightly increase visible hair count but does not reverse hair follicle miniaturization in male pattern baldness. It does not address damage to the dermal papilla or broken Wnt signaling.

community So does oral minoxidil age your skin or not

43 upvotes 2 years ago

Oral minoxidil may cause dry skin and dark eye bags but doesn't significantly age the skin. Topical minoxidil is toxic to cats, and some users prefer finasteride.

Compressed part of research of theory of androgenic/anabolitic balance. AGA h-responders analytic. Theory of physio-metabolitic method of anti AGA treatment

community Compressed part of research of theory of androgenic/anabolitic balance. AGA h-responders analytic. Theory of physio-metabolitic method of anti AGA treatment

in Research 865 upvotes 1 year ago

The treatment for androgenetic alopecia involves using finasteride and minoxidil with intense exercise and cold exposure to boost metabolism and reduce androgenic effects, potentially leading to hair regrowth. This approach may activate biological pathways for improved hair and overall health.

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Phatra Phinyophasutthi, ISHRS Graduate Fellow in Hair Restoration Surgery
Bangkok, Thailand

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Phatra Phinyophasutthi, ISHRS Graduate Fellow in Hair Restoration Surgery