Male Androgenetic Alopecia

April 2010 in “ Expert Opinion on Pharmacotherapy ”

Deepani Rathnayake, Rodney Sinclair

male androgenetic alopecia hair transplant prostaglandin analogues gene therapy angiogenic growth factors topical minoxidil finasteride tablets MAA Rogaine Propecia

From the encyclopedia

Hair Transplant →

Hair transplantation moves DHT-resistant follicles from a donor area (back and sides of the scalp) into thinning or bald areas. The transplanted hair is generally permanent, though surrounding native hair can keep thinning.

Minoxidil →

An essential vasodilator with some anti-androgenic effects

Finasteride →

Frontline, gold standard treatment for combatting androgenic alopecia

Studysummary This article reviews existing treatments for male-pattern hair loss, noting that while they can slow progression, they generally achieve only partial hair regrowth.

Automatically generated from the study's abstract, not written by a person, and not a review of the full paper. Not medical advice or a treatment recommendation. Read the original study, and consult a qualified healthcare professional before changing treatment. Full disclaimer

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Research cited in this study

42 / 42 results

research Gene-Wide Association Study Between the Aromatase Gene (CYP19A1) and Female Pattern Hair Loss

77 citations , April 2009 in “British Journal of Dermatology”

In this study, genetic variation in the CYP19A1 gene, particularly the common rs4646 C allele, was associated with an increased risk of female pattern hair loss, especially in women under 40.

research Susceptibility Variants for Male-Pattern Baldness on Chromosome 20p11

140 citations , October 2008 in “Nature Genetics”

The Ludwig Pattern of Androgenetic Alopecia Is Due to a Hierarchy of Androgen Sensitivity Within Follicular Units That Leads to Selective Miniaturization and a Reduction in the Number of Terminal Hairs Per Follicular Unit

research The Ludwig Pattern of Androgenetic Alopecia Is Due to a Hierarchy of Androgen Sensitivity Within Follicular Units That Leads to Selective Miniaturization and a Reduction in the Number of Terminal Hairs Per Follicular Unit

47 citations , September 2008 in “British Journal of Dermatology”

This study found that women with androgenetic alopecia experience diffuse hair loss due to a decrease in terminal hairs and an increase in vellus hairs per follicular unit.

research Genome-Wide Scan and Fine-Mapping Linkage Study of Androgenetic Alopecia Reveals a Locus on Chromosome 3q26

62 citations , March 2008 in “American Journal of Human Genetics”

This study located a potential genetic link for androgenetic alopecia on chromosome 3q26, marking an early step in identifying new susceptibility genes for male pattern baldness.

research Men With Kennedy Disease Have a Reduced Risk of Androgenetic Alopecia

41 citations , June 2007 in “British Journal of Dermatology”

This study found that men with Kennedy disease have a significantly lower risk of androgenetic alopecia, likely due to androgen receptor gene alterations from the disease's polyglutamine expansion.

research A New Classification of Pattern Hair Loss That Is Universal for Men and Women: Basic and Specific (BASP) Classification

125 citations , May 2007 in “Journal of The American Academy of Dermatology”

This study describes the development of the BASP classification system, providing a universal and systematic approach for classifying pattern hair loss in both men and women.

research Dutasteride Improves Male Pattern Hair Loss in a Randomized Study in Identical Twins

39 citations , March 2007 in “Journal of Cosmetic Dermatology”

This study in identical twin males with androgenetic alopecia found that dutasteride significantly improved hair growth compared to placebo over one year.

Effect of 1 mg/Day Finasteride on Concentrations of Serum Prostate-Specific Antigen in Men With Androgenic Alopecia: A Randomized Controlled Trial

research Effect of 1 mg/Day Finasteride on Concentrations of Serum Prostate-Specific Antigen in Men With Androgenic Alopecia: A Randomized Controlled Trial

89 citations , December 2006 in “Lancet Oncology”

In this study, 1 mg/day finasteride lowered serum PSA concentration in men aged 40–60, suggesting that PSA adjustment recommendations for prostate cancer screening using 5 mg/day finasteride should also apply to this lower dose for hair loss treatment.

The Importance of Dual 5α-Reductase Inhibition in the Treatment of Male Pattern Hair Loss: Results of a Randomized Placebo-Controlled Study of Dutasteride Versus Finasteride

research The Importance of Dual 5α-Reductase Inhibition in the Treatment of Male Pattern Hair Loss: Results of a Randomized Placebo-Controlled Study of Dutasteride Versus Finasteride

215 citations , November 2006 in “Journal of The American Academy of Dermatology”

This study found that dutasteride increased scalp hair growth in men with male pattern hair loss, particularly at a 2.5 mg dose, and was more effective than finasteride over 24 weeks.

research Finasteride Induced Depression: A Prospective Study

99 citations , October 2006 in “BMC clinical pharmacology”

This preliminary study suggests that finasteride might cause depressive symptoms, indicating the need for cautious prescription in patients at high risk for depression.

research Effects of Finasteride (1 mg) on Hair Transplant

23 citations , October 2005 in “Dermatologic Surgery”

This study found that finasteride 1 mg daily, taken before and after hair transplant surgery, significantly improved scalp hair coverage and density in men with androgenetic alopecia compared to placebo.

research Role of Androgen in Mesenchymal Epithelial Interactions in Human Hair Follicle

67 citations , August 2005 in “Journal of Investigative Dermatology Symposium Proceedings”

This study found that in vitro, beard dermal papilla cells stimulated keratinocyte proliferation via androgen-dependent growth factors, while androgenetic alopecia cells released TGF-β1, inhibiting keratinocyte growth.

research Prevalence of Male and Female Pattern Hair Loss in Maryborough

193 citations , August 2005 in “Journal of Investigative Dermatology Symposium Proceedings”

This study found that the prevalence of androgenetic alopecia increases with age among both men and women in Maryborough, Australia, with 57% of women and 73.5% of men aged 80 and over affected.

research Treatment of Female Pattern Hair Loss With Oral Antiandrogens

179 citations , March 2005 in “British Journal of Dermatology”

This study found that 88% of women with female pattern hair loss who received oral antiandrogens saw no progression or improvement in their condition.

research An Open, Randomized, Comparative Study of Oral Finasteride and 5% Topical Minoxidil in Male Androgenetic Alopecia

71 citations , January 2004 in “Dermatology”

This study found that oral finasteride was more effective than 5% topical minoxidil in treating mild to severe androgenetic alopecia in males, with both treatments deemed effective and safe over 12 months.

research Genetic Basis of Male Pattern Baldness

191 citations , December 2003 in “Journal of Investigative Dermatology”

Male pattern baldness is largely genetic, linked to the androgen receptor gene, and may relate to certain health issues.

research Molecular Control of Epithelial-Mesenchymal Interactions During Hair Follicle Cycling

277 citations , June 2003 in “The journal of investigative dermatology. Symposium proceedings/The Journal of investigative dermatology symposium proceedings”

This article reviews the role of epithelial-mesenchymal interactions in hair follicle morphogenesis and the hair cycle, suggesting potential paths for developing treatments for hair growth disorders but providing no new clinical findings.

research Perception of Men with Androgenetic Alopecia by Women and Nonbalding Men in Korea: How the Nonbald Regard the Bald

26 citations , December 2002 in “International Journal of Dermatology”

This study found that in Korea, nonbald individuals perceive balding men as older and less attractive, with women more likely than nonbald men to view them as less attractive.

research Comparative Efficacy of Various Treatment Regimens for Androgenetic Alopecia in Men

80 citations , August 2002 in “Journal of Dermatology”

This study found that combining oral finasteride with topical minoxidil resulted in the greatest improvement in hair growth for male patients with androgenetic alopecia, compared to using any single treatment.

research Effects of Minoxidil 2% vs. Cyproterone Acetate Treatment on Female Androgenetic Alopecia: A Controlled, 12-Month Randomized Trial

149 citations , June 2002 in “British Journal of Dermatology”

Minoxidil works better for female hair loss, but cyproterone reduces scalp oiliness and causes menstrual issues.

research Allergic Contact Dermatitis to Topical Minoxidil Solution: Etiology and Treatment

123 citations , February 2002 in “Journal of The American Academy of Dermatology”

Minoxidil can cause skin allergy; use alternative solvents or treatments if allergic.

Minoxidil-Induced Hair Growth Is Mediated by Adenosine in Cultured Dermal Papilla Cells: Possible Involvement of Sulfonylurea Receptor 2B as a Target of Minoxidil

research Minoxidil-Induced Hair Growth Is Mediated by Adenosine in Cultured Dermal Papilla Cells: Possible Involvement of Sulfonylurea Receptor 2B as a Target of Minoxidil

83 citations , December 2001 in “Journal of Investigative Dermatology”

Minoxidil boosts hair growth by targeting adenosine and possibly sulfonylurea receptor 2B.

research Polymorphism of the Androgen Receptor Gene Is Associated with Male Pattern Baldness

299 citations , March 2001 in “Journal of Investigative Dermatology”

This study found that specific genetic markers near the androgen receptor gene are significantly more common in men with male pattern baldness, suggesting a genetic component in its development.

research The Genetics of Androgenetic Alopecia

50 citations , March 2001 in “Clinics in Dermatology”

Genes and hormones cause hair loss, with four genes contributing equally.

research Finasteride Increases Anagen Hair in Men with Androgenetic Alopecia

129 citations , October 2000 in “British Journal of Dermatology”

This study found that finasteride increases anagen hair growth in men with androgenetic alopecia.

research Differences in Hair Follicle Dermal Papilla Volume Are Due to Extracellular Matrix Volume and Cell Number: Implications for the Control of Hair Follicle Size and Androgen Responses

231 citations , December 1999 in “Journal of Investigative Dermatology”

This study found that the volume of a hair follicle's dermal papilla is strongly correlated with its size, primarily due to the number of cells it contains and the volume of extracellular matrix.

research Finasteride in the Treatment of Men with Androgenetic Alopecia

581 citations , October 1998 in “Journal of The American Academy of Dermatology”

In male pattern hair loss, this study found that finasteride 1 mg daily significantly slowed hair loss and increased hair growth over two years compared to placebo.

research Genetic Analysis of Male Pattern Baldness and the 5α-Reductase Genes

169 citations , June 1998 in “Journal of Investigative Dermatology”

This study found no significant genetic association between the 5α-reductase enzyme genes and male pattern baldness, suggesting a polygenic etiology rather than simple inheritance.

research Minoxidil Upregulates the Expression of Vascular Endothelial Growth Factor in Human Hair Dermal Papilla Cells

192 citations , March 1998 in “British Journal of Dermatology”

This study found that minoxidil significantly increases VEGF mRNA and protein expression in dermal papilla cells, suggesting a role in enhancing hair follicle vascularization in androgenetic alopecia.

Different Levels of 5α-Reductase Type I and II, Aromatase, and Androgen Receptor in Hair Follicles of Women and Men with Androgenetic Alopecia

research Different Levels of 5α-Reductase Type I and II, Aromatase, and Androgen Receptor in Hair Follicles of Women and Men with Androgenetic Alopecia

416 citations , September 1997 in “Journal of Investigative Dermatology”

People with hair loss have more androgen receptors and enzymes in certain follicles, with men and women showing different patterns.

research Potassium Channel Conductance as a Control Mechanism in Hair Follicles

42 citations , July 1993 in “Journal of Investigative Dermatology”

research The Psychological Effects of Androgenetic Alopecia in Men

192 citations , June 1992 in “Journal of The American Academy of Dermatology”

Hair loss can cause low self-esteem, anxiety, and depression in men.

research Potassium Channel Conductance: A Mechanism Affecting Hair Growth Both In Vitro and In Vivo

82 citations , March 1992 in “Journal of Investigative Dermatology”

research Five-Year Follow-Up of Men with Androgenetic Alopecia Treated with Topical Minoxidil

70 citations , April 1990 in “Journal of The American Academy of Dermatology”

Minoxidil treatment increased hair growth for up to 5 years, requiring twice daily application.

research Topical Minoxidil in Early Androgenetic Alopecia

44 citations , March 1987 in “Journal of The American Academy of Dermatology”

This study found that both 2% and 3% topical minoxidil were more effective than placebo in promoting hair growth for men with male pattern baldness over 12 months.

research Androgenetic Alopecia: Treatment Results with Topical Minoxidil

39 citations , March 1987 in “Journal of The American Academy of Dermatology”

Topical minoxidil is a safe and effective treatment for hair loss caused by androgenetic alopecia.

research Use of Topical Minoxidil as a Possible Adjunct to Hair Transplant Surgery

28 citations , March 1987 in “Journal of The American Academy of Dermatology”

This study observed that two out of twelve patients showed hair growth without the usual shedding after hair transplant surgery when treated with topical minoxidil, suggesting its potential as an adjunctive therapy during recovery.

research The Inheritance Of Common Baldness: To Be Or Not To Be?

203 citations , November 1984 in “Journal of the American Academy of Dermatology”

This study presents evidence suggesting that androgenetic alopecia is most likely inherited through a polygenic model, challenging the traditional view that it is caused by a simple Mendelian autosomal dominant gene.

Minoxidil Stimulates Cutaneous Blood Flow in Human Balding Scalps: Pharmacodynamics Measured by Laser Doppler Velocimetry and Photopulse Plethysmography

research Minoxidil Stimulates Cutaneous Blood Flow in Human Balding Scalps: Pharmacodynamics Measured by Laser Doppler Velocimetry and Photopulse Plethysmography

137 citations , May 1984 in “Journal of Investigative Dermatology”

Minoxidil increases blood flow in balding scalps, possibly reversing hair loss.

Minoxidil for Severe Hypertension After Failure of Other Hypotensive Drugs