Reference : EEMCO guidance for the assessment of hair shedding and alopecia.
Scientific journals : Article
Human health sciences : Dermatology
http://hdl.handle.net/2268/6913
EEMCO guidance for the assessment of hair shedding and alopecia.
English
Pierard, Gérald mailto [Centre Hospitalier Universitaire de Liège - CHU > > Dermatopathologie >]
Pierard, Claudine [Centre Hospitalier Universitaire de Liège - CHU > > Dermatopathologie >]
Marks, R. [Cutest Systems Limited, Heath, Cardiff, Great Britain > > > > > >]
Elsner, P. [Department of Dermatology and Allergology, Friedrich Schiller University, Jena, Germany > > > > > >]
2004
Skin Pharmacology & Physiology
S. Karger
17
2
98-110
Yes (verified by ORBi)
1660-5527
1660-5535
Basel
Switzerland
[en] Alopecia/physiopathology/prevention & control ; Hair/growth & development/physiopathology ; Humans ; Methods
[en] Knowledge of the hair follicle anatomy and the dynamics of hair cycling is substantial. Recognizing the anagen, catagen and telogen phases as well as teloptosis and the hair eclipse phenomenon clearly characterizes the typical hair chronobiology. Physiological modulators include hormones, neuromediators, miscellaneous biomolecules, seasons, micro-inflammation and ageing. For individuals who present with the complaint of increased hair shedding or alopecia, a host of evaluation techniques are available in addition to history, physical examination and laboratory assessment. Various clinical hair techniques can help in assessing the efficacy of drugs and cosmetics on hair growth. The methods are quite similar to those used to establish a definite diagnosis in dermatological practice. Great strides have been made during the recent decades in the methodology of hair growth trials in dermatology and cosmetology. Clinical evaluations benefit from a few additional specific techniques that enhance the perception of hair (re-) growth, shedding and alopecia. These assessments include the determination of hair patterning and density that may be helped by the 'black-and-white felt' examination. Daily hair counts, the 'hair pull test' and the 'hair feathering test' are also available. Instrumental methods provide reliable quantitative information that is useful if there are adequate controls. Some photographic methods, the trichogram, hair weighing and variants of the hair growth window technique including the phototrichogram, videotrichogram and tractio-phototrichogram provide insight into the complexities of hair cycling and shedding. Skin biopsy is indicated for diagnostic purposes, especially when the hair loss is accompanied by scarring.
http://hdl.handle.net/2268/6913
10.1159/000076020
Copyright 2004 S. Karger AG, Basel

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