Abstract A markedly acid surface reaction is a characteristic attribute of the healthy human skin. The physiologic occurrence of strictly localized zones where acidity is diminished has been the subject of previous reports1,2; they deal primarily with differences among the skin pH patterns of children, adolescents, and adults. Little is known about the skin pH of infants during the first month after birth. The only pertinent investigation known to us is that of Taddei.3 His findings uniformly demonstrate that the skin pH is maintained in the neighborhood of 6.5 from birth through the 20th day. The presence of such uniform and relatively elevated values would tend to indicate that the mechanism responsible for the physiologic acidification of the skin surface has not yet developed in these young infants. Our own studies do not confirm Taddei's findings. It is the purpose of this communication to report the results of skin References 1. Herrmann, F.; Behrendt, H., and Karp, F. L.: On the Acidity of the Surface of the Scalp and Other Areas of the Skin in Children , J. Invest. Dermat. 7:215, 1946.Crossref 2. Behrendt, H., and Green, M.: The Relationship of Skin pH Pattern to Sexual Maturation in Boys , A. M. A. Am. J. Dis. Child. 90:164, 1955. 3. Taddei, A.: Ricerche, mediante indicatori, sulla reazione attuale della cute nel neonato , Riv. ital. ginec. 18:496, 1935. 4. Bernstein, E. T., and Herrmann, F.: The Acidity on the Skin Surface , New York J. Med. 42:436, 1942. 5. Herrmann, F., and Mandol, L.: Studies of pH of Sweat Produced by Different Forms of Stimulation , J. Invest. Dermat. 24:225, 1955.Crossref 6. Kuno, Y.: Human Perspiration , Springfield, Ill., Charles C Thomas, Publisher, 1956, p. 126. 7. Szakall, A.: Über die Eigenschaften, Herkunft und physiologischen Funktionen der die H-Ionenkonzentration bestimmenden Wirkstoffe in der verhornten Epidermis , Arch. klin. & exper. Dermat. 201:331, 1955. 8. Rothman, S., and Sullivan, M. B.: Amino Acids on the Normal Human Skin Surface , J. Invest. Dermat. 13:319, 1949. 9. Arbenz, H.: Untersuchungen über die pH-Werte der normalen Hautoberfläche , Dermatologica 105:333, 1952.
A.M.A. Journal of Diseases of Children – American Medical Association
Published: Jan 1, 1958
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