Abstract
SUMMARY. Hair samples were obtained from the scalps of 5 infants with kwashiorkor and 5 matched control infants on a balanced diet. The greatest diameters of the hairs were measured in their natural state, ethanol, xylol, water and air. The diameters of the kwashiorkor hairs were 8 to 22% larger in water than in air while the diameters of the control hairs were 5 to 8% larger. This indicates that the stability of the cross links between the polypeptide chains of hair proteins is reduced in kwashiorkor. The mass per unit area of cryostat sections of hair was estimated by electron probe x-ray emission microanalysis. No difference was demonstrable between the density of proteins in kwashiorkor and control hair. It is concluded that the soft texture of kwashiorkor hair is not associated with a reduction in the density of its proteins.
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