December 2017 in “International Journal of Current Research in Biosciences and Plant Biology” Nutrients and hormones affect root hair growth, but more research is needed to understand the genetic mechanisms.
115 citations
,
August 2008 in “The Journal of Clinical Endocrinology & Metabolism” Thyroid hormones help hair grow, reduce hair loss, and increase hair pigment.
December 2015 in “PLOS ONE”
193 citations
,
February 2015 in “Nature Communications” Fungi-produced compounds can change plant root growth.
May 2005 in “Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature” Truncated LTBP-1 disrupts TGF-beta signaling, affecting hair growth.
April 2026 in “Mendeley Data” Topical treatments for hair loss have a stronger placebo effect than systemic ones.
20 citations
,
March 2017 in “Journal of cutaneous pathology” Shrinking of oil glands in the skin is a key sign of hair loss linked to TNF inhibitor drugs and may improve if the treatment is stopped.
53 citations
,
July 1981 in “Journal of Endocrinology” α-MSH and cyclic AMP boost melanin production, while cyclic GMP and melatonin reduce it.
TLR2 helps control hair growth and regeneration, and its reduction with age or obesity can impair hair growth.
211 citations
,
February 1994 in “Proceedings of the National Academy of Sciences” Too much parathyroid hormone-related protein in skin disrupts hair growth in mice.
156 citations
,
October 1996 in “Science of The Total Environment” Tributyltin exposure causes sex changes, sterilization, and decline in the snail Ocinebrina aciculata, risking its extinction.
6 citations
,
April 2021 in “Scientific Reports” Phytochrome A is crucial for normal metabolism and development in tomato seedlings under far-red light.
December 2014 in “Journal of Biomedical Research” Recombinant thymosin β4 promotes blood vessel growth and reduces muscle damage.
14 citations
,
July 2021 in “Bioscience Reports” Activating Tgr5 may help treat hair loss and bone loss.
29 citations
,
February 2018 in “European Journal of Immunology” Regulatory T cells are essential for normal and improved wound healing in mice.
90 citations
,
December 2008 in “Journal of Investigative Dermatology” Thyroid-stimulating hormone affects hair follicles but doesn't change hair growth or color.
1 citations
,
January 2016 in “Journal of Clinical & Experimental Dermatology Research”
March 2014 in “Journal of The American Academy of Dermatology” TNF-a may not be as involved in certain types of hair loss as previously thought.
117 citations
,
March 2017 in “Nature Communications” Macrophages help regrow hair by activating stem cells using AKT/β-catenin and TNF.
2 citations
,
September 2020 Long-term high testosterone levels can improve bone density and reduce body fat but may increase the risk of prostate cancer and high blood pressure.
April 2019 in “The journal of investigative dermatology/Journal of investigative dermatology” DHT may reduce inflammation caused by certain bacteria in skin cells.
30 citations
,
February 2017 in “Histochemistry and Cell Biology” TPA promotes hair growth by increasing stem cell activity and activating specific cell signals.
288 citations
,
January 2001 in “Journal of Biological Chemistry” Tgm2 helps stabilize dying cells and aids fibroblast attachment to the extracellular matrix.
31 citations
,
October 2010 in “BMB Reports” L-threonate may help prevent balding by blocking a key protein.
5 citations
,
March 2019 in “Experimental dermatology” Activating TLR3 may help produce retinoic acid, important for tissue regeneration.
August 1994 in “Journal of dermatological science” Different substances affect hair and skin cell growth in various ways.
24 citations
,
March 2016 in “Journal of Investigative Dermatology” TIP39 and PTH2R help control calcium levels and skin cell development.
May 2025 in “Nonlinear Analysis Real World Applications” Reducing CD8+ T cell growth can stabilize alopecia areata.
9 citations
,
April 2018 in “Biology of reproduction” Diet changes hormone levels in pregnant ewes by affecting metabolism, not placental synthesis.
January 2020 in “Majalah Kedokteran Gigi Indonesia” Freeze-drying collagen-activated PRP increases TGF-β1 levels, enhancing tissue regeneration potential.