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NORMALIZED STRESS–STRAIN RELATIONSHIP IN HUMAN HAIR PERTURBATION BY HYPOTHYROIDISM
Author(s) -
KORSTOFF EDWARD,
RAWNSLEY HOWARD M.,
SHELLEY WALTER B.
Publication year - 1970
Publication title -
british journal of dermatology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.304
H-Index - 179
eISSN - 1365-2133
pISSN - 0007-0963
DOI - 10.1111/j.1365-2133.1970.tb15023.x
Subject(s) - acromegaly , medicine , stress (linguistics) , endocrinology , physiology , hormone , growth hormone , linguistics , philosophy
SUMMARY.— A short review is given of the observations which have been made on the mechanical properties of human hair under axial tension. Stress–strain curves of dry single fibres of human hair from patients with hypothyroidism and acromegaly revealed a distinctive alteration in the high yield region. The biophysical basis for this anomalous behaviour is not known. Attention is directed to the potential value of further studies of the physical characteristics of hair with special reference to mass screening programmes for evidence of disease. This aim is furthered by the technique introduced in this paper for distinguishing the abnormal from the normal.