May 2017 in “Journal of The American Academy of Dermatology” LED light helps human hair root cells grow and prevents them from dying by activating specific growth pathways.
April 2017 in “Journal of Investigative Dermatology” Early and late matrix progenitors in hair follicles create different cell layers, with early ones forming the companion layer and later ones forming the inner root sheath and hair shaft.
April 2017 in “Journal of Investigative Dermatology” The hair follicle dermal sheath is essential for hair shedding and needs to communicate with the outer root sheath for normal hair growth cycles.
March 2009 in “Chinese Journal of Dermatology” Melanocytes in the outer root sheath are likely stem cells that grow fast but stay immature.
January 2014 in “Journal of Pharmaceutical Negative Results” Liquorice and Indian jujube root extracts don't help in fighting male pattern baldness.
January 1996 in “Springer eBooks” Hair can regrow if the sebaceous gland is intact, even if the hair root is removed.
8 citations,
April 2012 in “Korean journal of medicinal crop science/Han-gug yagyong jagmul hag-hoeji” Rosa multiflora root extract promotes hair growth and prevents hair loss.
5 citations,
October 2022 in “Frontiers in bioengineering and biotechnology” Ro stress hindered ginseng root growth and ginsenoside production, but increased certain hormones and affected gene regulation related to plant growth and stress responses.
2 citations,
August 2020 in “International Journal of Cosmetic Science” Lindera strychnifolia root extract may help balance scalp bacteria and potentially reduce hair loss.
April 2012 in “韓國藥用作物學會誌 = Korean journal of medicinal crop science” Rosa multiflora root extract promotes hair growth and prevents hair loss.
30 citations,
March 2012 in “Journal of Analytical Toxicology” THCCOOH levels in hair decrease from root to tip and don't match well with self-reported cannabis use.
20 citations,
July 2008 in “Dermatologic Therapy” The document says that treating the root cause of hair follicle damage is crucial to prevent permanent hair loss, and treatment options vary.
5 citations,
July 2022 in “Genes” Increasing EGR1 levels makes hair root cells grow faster.
3 citations,
December 2013 in “Journal of Dermatology” Scanning electron microscopy revealed four distinct hair root shapes in alopecia areata, suggesting a less invasive diagnostic method.
1 citations,
October 2012 in “Medical Hypotheses” The conclusion suggests that treatments targeting root causes of chronic diseases may be developed by focusing on gene expression and lifestyle factors.
July 2024 in “New Phytologist” PDF2 senses specific lipids and regulates root growth and gene expression in Arabidopsis.
February 2024 in “Planta” TRM21 helps control flavonoid production and root hair growth in Arabidopsis thaliana.
30 citations,
May 2018 in “Experimental Dermatology” The conclusion is that future hair loss treatments should target the root causes of hair thinning, not just promote hair growth.
13 citations,
February 2009 in “Pest management science” Reactive oxygen species are key for parasitic plant attachment and affect root development in various plants.
10 citations,
June 2019 in “Cosmetics” Mixed-race individuals have hair with varied shapes and more root damage.
10 citations,
April 2013 in “Journal of Investigative Dermatology” Scientists created a model using sheep cells to study hair root formation, which can test how different substances affect hair growth.
Caffeine in Alpecin shampoo may help prolong hair root activity and reduce hair loss.
March 1983 in “Annals of Internal Medicine” 5-Aminosalicylic acid enemas may cause immediate hair root damage and hair loss.
9 citations,
July 2018 in “Acta biomaterialia” Eyelash curvature is linked to the thickness of the cuticle layer at the root.
5 citations,
January 2021 in “iScience” Using a combination of specific cell cycle regulators is better for safely keeping hair root cells alive indefinitely compared to cancer-related methods.
546 citations,
February 2008 in “PLANT PHYSIOLOGY” OsPHR2 gene causes excessive phosphate in rice shoots, affecting plant growth and root development.
October 2023 in “Journal of the Endocrine Society” Estetrol helps keep scalp hair in the growth phase longer and improves hair follicle health by affecting the hair root and increasing stem cells.
161 citations,
August 2013 in “Journal of experimental botany” Certain inhibitors slow down plant growth by causing early cell specialization without changing the cell development pattern.
74 citations,
January 2015 in “Asian Journal of Transfusion Science” Platelet-rich plasma (PRP) injections can effectively increase hair density and thickness in people with androgenic alopecia, without major side effects.
69 citations,
December 2015 in “BMC plant biology” Three genes in Arabidopsis are important for plant growth and development by affecting sugar attachment to proteins.