The Study of Sweat and Serum Carcinoembryonic Antigen Values in Healthy Subjects

Shin, Ho Cheol; Kim, Sang Won; Kim, Dong Seok

Abstract

BACKGROUND: The positive reactions of carcinoembryonic antigen(CEA) show varying degrees in the tissue of all sweat gland neoplasms by immunohistochemistry. The CEA secreted from sweat glands presents a high value, compared with that of serum.
OBJECTIVE
The study was to evaluate the sweat CEA value in relation to serum CEA value by sex, smoking status and blood type in healthy subjects. METHOD: Fifty-two healthy subjects(M : 43, F :9) aged 21-30, participated in the study. 2ml sweat was collected from the face and chest after intense exercises and 3ml blood was collected from their antecubital veins. Roche Core CEA enzyme immunoassay was used for the measurement of sweat and serum CEA.
RESULTS
Sweat CEA values were 102.0+4100.5ng/ml in males and 70.6+458.5ng/ml in females, with their mean valueof 96.6+/-94.9ng/ml. Sweat CEA values were 108.3+/-103.5ng/ml in 27 smokers and 83.9+/-84.8ng/ml in 25 nonsmokers(p>0.05, t-test). Sweat CEA values were higher among the males and the smokers. Serum CEA values were 2.5+/-1.7ng/ml in males and 1.6+/-0.8ng/ml in females, with its mean value of 2.4+/-1.6ng/ml. There was no difference between serum values of smokers and nonsmokers. Sweat CEA values were about 40 times higher than those of serum, with no correlation of sweat and serum CEA(correlation coefficient=-0.16, P>0.05). In the blood type study, sweat CEA values were 123.1+/-131.8ng/ml in A type and 66.1+/-55.0ng/ml in B type(P>0.05), whereas serum CEA values were higher in AB type and lower in O type(P<0.05, ANOVA).
CONCLUSION
Sweat CEA values are extraordinarily high in contradistinction to serum. Sweat CEA values are not affected by sex, smoking status and blood type. There seems to be no association between CEA values of sweat and serum.