5 citations,
February 2019 in “BioMed Research International” Acne in reproductive-age women may be linked to conditions like PCOS and lifestyle factors, so doctors should check for these when treating acne.
November 2019 in “Hair transplant forum international” The SketchAndCalc app is a faster and more precise method for measuring hair transplant areas than traditional grid counting.
September 2010 in “Advances in Dermatology and Allergology/Postępy Dermatologii i Alergologii” TrichoScan is reliable for counting and measuring hair density but may not accurately assess hair types in women with hair loss.
The authors defended their methods for measuring hair density and caliber, emphasizing the need for consistent photography and manual counting for accuracy in evaluating hair loss treatments.
26 citations,
March 1986 in “Clinical and Experimental Dermatology” Scalp hair grows at 0.37 mm/day, forearm hair at 0.18 mm/day, and thigh hair at 0.30 mm/day, with no significant differences found in people with certain hair conditions.
11 citations,
September 2020 in “Steroids” A new method accurately measures steroid hormones in a few hair strands and could help study chronic stress and hair loss.
7 citations,
June 2007 in “PubMed” Turkish women with female pattern hair loss have lower hair density, and visual counting is more effective than digital image analysis for detecting this.
61 citations,
April 2012 in “British Journal of Dermatology” Caucasian women's hair appears thickest in their 20s, with perceived thinning after mid-30s due to both decreasing density and diameter.
26 citations,
April 2011 in “Skin Research and Technology” In vivo confocal scanning laser microscopy is an effective, non-invasive way to study and measure new hair growth after skin injury in mice.
1 citations,
November 2020 in “bioRxiv (Cold Spring Harbor Laboratory)” Quantifying hair shape is better than using racial categories for understanding hair characteristics.
211 citations,
April 2013 in “Development” More dermal papilla cells in hair follicles lead to larger, healthier hair, while fewer cells cause hair thinning and loss.
83 citations,
April 1999 in “Dermatologic Surgery” The research found that for a typical hair density, about 11 square centimeters of donor scalp is needed to get 800 hair grafts for transplantation.
February 2015 in “Dermatologic Surgery” Smaller reticle sizes are as accurate as the standard size for measuring hair density in hair restoration.
October 2022 in “Asian journal of healthy and science” Mother-in-law's tongue leaf extract at 20% concentration significantly promotes hair growth in male rabbits.
63 citations,
October 2005 in “Archives of Dermatology” Shorter, thinner hairs indicate AGA, while longer, thicker hairs suggest CTE; counting and measuring shed hairs helps diagnose hair loss type.
5 citations,
February 2011 in “Expert Opinion on Drug Discovery” We need better treatments for hair loss, and while test-tube methods are helpful, they can't fully replace animal tests for evaluating new hair growth treatments.
4 citations,
March 2015 in “Skin Research and Technology” Trichotillometry is a reliable method to measure hair strength and assess hair loss treatments.
29 citations,
April 2017 in “Macromolecular bioscience” Scientists created tiny pH-sensing gels that can safely measure the pH levels inside hair follicles.
28 citations,
October 1992 in “JEADV. Journal of the European Academy of Dermatology and Venereology/Journal of the European Academy of Dermatology and Venereology” SIP is a better method for measuring hair growth accurately.
1 citations,
July 2020 in “bioRxiv (Cold Spring Harbor Laboratory)” Removing centrosomes from skin cells leads to thinner skin and stops hair growth, but does not greatly affect skin cell differentiation.
8 citations,
March 2020 in “Frontiers in Cell and Developmental Biology” Researchers created immortal human skin cells with constant testosterone receptor activity to study hair loss and test treatments.
288 citations,
June 2009 in “Human reproduction update” The modified Ferriman-Gallwey method is a useful tool for diagnosing hirsutism.
2 citations,
February 2023 in “International journal of molecular sciences” Tetrathiomolybdate reduces hair growth marker in skin cells by boosting harmful oxygen molecules, but effects can be reversed.
1 citations,
July 2024 in “Skin Research and Technology” High-frequency ultrasound can effectively visualize and assess hair loss.
145 citations,
December 1999 in “Journal of Investigative Dermatology Symposium Proceedings” Finasteride 1mg helps reverse hair miniaturization in men and postmenopausal women.
16 citations,
March 2008 in “International journal of pharmaceutics” Different factors like pH, gel type, and chemical enhancers affect how well hydrocortisone gets into hair follicles, and less hydrated skin doesn't work well with the test method.
1 citations,
May 2001 in “Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE” The system helps monitor hair properties using RGB video microscopy.
51 citations,
January 2004 in “Skin Pharmacology and Physiology” The document explains hair growth and shedding, factors affecting it, and methods to evaluate hair loss, emphasizing the importance of skin biopsy for diagnosis.
46 citations,
April 2009 in “Journal of Dermatological Case Reports” Researchers established normal hair and scalp characteristics for healthy women using trichoscopy.
30 citations,
December 2017 in “Clinical, Cosmetic and Investigational Dermatology” Parietal scalp area has lower hair density and smaller hair diameter in women with hair loss.