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GlossaryCentral Centrifugal Cicatricial Alopecia (CE-PTG)

scarring hair loss starting at the scalp's crown, common in African American women

Central Centrifugal Cicatricial Alopecia (CCCA) is a type of scarring hair loss that typically starts at the crown of the scalp and spreads outward in a circular pattern. It is most commonly seen in African American women and can lead to permanent hair loss due to the destruction of hair follicles and subsequent scarring.

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research Contrast Enhanced Phototrichogram: An Improved Non-Invasive Technique for Measurement of Scalp Hair Dynamics in Androgenetic Alopecia – Validation Study with Histology After Transverse Sectioning of Scalp Biopsies

12 citations, June 2001 in “PubMed”

CE-PTG is a better method for analyzing hair growth in androgenetic alopecia.

research Contrast Enhanced Phototrichogram Pinpoints Scalp Hair Changes in Androgen Sensitive Areas of Male Androgenetic Alopecia

22 citations, May 2002 in “Skin Research and Technology”

CE-PTG detects early hair follicle issues in balding areas, helping measure male hair loss.

research Critical Study of Hair Growth Analysis with Computer-Assisted Methods

40 citations, April 2006 in “Journal of the European Academy of Dermatology and Venereology”

The Trichoscan system was found to be inaccurate for measuring hair growth, needing better software to be useful.

research Morphological Approach to Hair Disorders

38 citations, June 2003 in “Journal of Investigative Dermatology Symposium Proceedings”

Accurate clinical, histological, and genetic methods are key for understanding and treating hair disorders.

Female Patients Complaining About Hair Loss: Documentation of Defective Scalp Hair Dynamics with Contrast-Enhanced Phototrichogram

research Female Patients Complaining About Hair Loss: Documentation of Defective Scalp Hair Dynamics with Contrast-Enhanced Phototrichogram

23 citations, April 2006 in “Skin Research and Technology”

The study concluded that a special imaging technique showed women with hair loss have slower hair growth and a faulty hair replacement cycle.

research Natural Scalp Hair Regression in Preclinical Stages of Male Androgenetic Alopecia and Its Reversal by Finasteride

24 citations, January 2006 in “Skin Pharmacology and Physiology”

Finasteride reverses early hair loss and promotes growth.

Why Care About Linear Hair Growth Rates? A Study Using In Vivo Imaging and Computer-Assisted Image Analysis After Manual Processing in Unaffected Male Controls and Men with Male Pattern Hair Loss

research Why Care About Linear Hair Growth Rates? A Study Using In Vivo Imaging and Computer-Assisted Image Analysis After Manual Processing in Unaffected Male Controls and Men with Male Pattern Hair Loss

7 citations, September 2014 in “European Journal of Dermatology”

Thicker hair grows faster; hair loss patients have slower growth.

research Exogen Hair Characterization in Human Scalp

35 citations, March 2007 in “Skin Research and Technology”

The conclusion is that exogen is a unique hair cycle phase and the new sampling method specifically targets this stage, which may help in future hair loss research.

research Automated Digital Image Analysis (TrichoScan) for Human Hair Growth Analysis: Ease Versus Errors

21 citations, January 2010 in “International Journal of Trichology”

TrichoScan often makes mistakes and needs improvement for correct hair growth analysis.

research Phototrichogram Findings in Women with Androgenetic Alopecia

20 citations, October 2006 in “Skin Research and Technology”

Women with AGA have less hair on midscalp, more thin and non-growing hair.

research Gender Differences in Scalp Hair Growth Rates Are Maintained but Reduced in Pattern Hair Loss Compared to Controls

11 citations, November 2015 in “Skin Research and Technology”

Women's hair grows faster and thicker than men's, but hair growth slows for both genders with pattern hair loss.

Placebo-Controlled Dose-Effect Studies with Topical Minoxidil 2% or 5% in Male-Patterned Hair Loss Treated with Oral Finasteride Employing an Analytical and Exhaustive Study Protocol

research Placebo-Controlled Dose-Effect Studies with Topical Minoxidil 2% or 5% in Male-Patterned Hair Loss Treated with Oral Finasteride Employing an Analytical and Exhaustive Study Protocol

5 citations, January 2020 in “Skin Research and Technology”

Minoxidil 5% works better than 2% for hair growth in male-patterned hair loss.

research Hair Evaluation Methods: Merits and Demerits

91 citations, January 2009 in “International Journal of Trichology”

Different hair evaluation methods have their own pros and cons, and using multiple methods together is best for accurate hair loss diagnosis and tracking.

research Current and Novel Methods for Assessing Efficacy of Hair Growth Promoters in Pattern Hair Loss

86 citations, February 2003 in “Journal of The American Academy of Dermatology”

New methods improve how we test hair growth treatments, but challenges like slow hair changes and high costs remain.

research Diagnosis of Hair Disorders

73 citations, March 2009 in “Seminars in Cutaneous Medicine and Surgery”

The document concludes that accurate diagnosis of hair disorders is crucial and requires a range of diagnostic methods.

research TrichoScan: A Novel Tool for the Analysis of Hair Growth In Vivo

70 citations, June 2003 in “Journal of Investigative Dermatology Symposium Proceedings”

TrichoScan is a reliable method for measuring hair growth and is useful for assessing hair loss treatments.

research EEMCO Guidance for the Assessment of Hair Shedding and Alopecia

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.

research Low-Level Laser Therapy as a Treatment for Androgenetic Alopecia

47 citations, April 2016 in “Lasers in Surgery and Medicine”

Low-level laser therapy may improve hair regrowth and thickness for androgenetic alopecia, but more research is needed.

The Changing Patterns of Hair Density and Thickness in South Korean Women with Hair Loss: Clinical Office-Based Phototrichogram Analysis

research The Changing Patterns of Hair Density and Thickness in South Korean Women with Hair Loss: Clinical Office-Based Phototrichogram Analysis

41 citations, December 2008 in “International Journal of Dermatology”

South Korean women with hair loss have lower hair density and thickness compared to healthy women.

research Assessment of Hair Loss: Clinical Relevance of Hair Growth Evaluation Methods

41 citations, July 2002 in “Clinical and Experimental Dermatology”

Effective hair loss assessment requires a mix of precise measurement methods.

research Assessment of the Usefulness of Dihydrotestosterone in the Diagnostics of Patients with Androgenetic Alopecia

35 citations, January 2014 in “Postepy Dermatologii I Alergologii”

DHT's role in hair loss is important, but measuring its level for diagnosis is questionable.

research Trichoscan: What Is New?

33 citations, January 2005 in “Dermatology”

Trichoscan is a reliable method for measuring hair growth and monitoring treatment effectiveness in hair loss.

Human Hair Growth Ex Vivo Is Correlated With In Vivo Hair Growth: Selective Categorization of Hair Follicles for More Reliable Hair Follicle Organ Culture

research Human Hair Growth Ex Vivo Is Correlated With In Vivo Hair Growth: Selective Categorization of Hair Follicles for More Reliable Hair Follicle Organ Culture

27 citations, November 2005 in “Archives of Dermatological Research”

Choosing hair follicles at the same growth stage leads to more consistent hair growth experiments.

research Female Pattern Hair Loss: Causes, Diagnosis, and Treatment Options

23 citations, January 2013 in “Indian Journal of Dermatology, Venereology and Leprology”

FPHL causes hair loss in women due to genetics and hormones; minoxidil and anti-androgens are treatments, and early intervention is advised.

research Severe Diffuse Non-Scarring Hair Loss in Systemic Lupus Erythematosus: Clinical and Histopathological Analysis of Four Cases

15 citations, December 2011 in “Journal of the European Academy of Dermatology and Venereology”

Hair loss in systemic lupus erythematosus patients is unique and improves with treatment.

research No Improvement in Male-Pattern Hair Loss Using Laser Hair-Comb Therapy: A 6-Month, Half-Head, Assessor-Blinded Investigation in Two Men

13 citations, October 2011 in “Clinical and Experimental Dermatology”

Laser hair-comb therapy doesn't improve male-pattern hair loss.

research Qualification of a New and Precise Automatic Tool for the Assessment of Hair Diameters in Phototrichograms

9 citations, January 2011 in “Skin Research and Technology”

The new automatic tool accurately measures hair thickness and is reliable.

research Investigating the Safety and Efficacy of Platelet-Rich Plasma Treatment for Female Androgenetic Alopecia: Review of the Literature

8 citations, March 2021 in “Medicina-lithuania”

PRP treatment may promote hair growth and improve hair density in women with AGA, but more research is needed.

research Viable Terminal Scalp Hair Follicles Are Necessary and Sufficient for Clinical Efficacy of Finasteride in Male Pattern Hair Loss

6 citations, June 2019 in “Skin Research and Technology”

Finasteride works for hair loss by maintaining existing hair follicles, not reversing miniaturization.

research Techniques for the Discovery and Evaluation of Drugs Against Alopecia

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.