[The influence of alexithymia in stress on secretory IgA and cortisol in saliva].
OBJECTIVE
To explore the influence of alexithymia in stress on secretory IgA (SIgA) and cortisol (Cor) in saliva.


METHODS
60 male students in high school were investigated and the psychological conditions were assessed by TAS (Group A was for high score and Group B for low score) and the change of the concentration of SIgA and Cor in saliva were examined by radio-immunoassay. All data was assessed by student's t test and single factor correlation analysis.


RESULTS
(1) SIgA in Gr-A was significantly lower than that in Gr-B one month before examination and on the day of examination (P<0.05), and SIgA was similar in the two groups (P>0.05). (2) Cor in Gr-A was significantly higher than that in Gr-B one month before examination and on the day of examination (P<0.05). Cor in the two groups was significantly higher than on the day of examination one month before examination (Gr-A: P<0.01;Gr-B: P<0.05). (3) The change rate of SIgA and Cor in the two groups was significantly different before and after stress (SIgA:<0.05;Cor: P<0.01);(4) The total score of TAS, factor I and II were significantly correlated to the change rate of SIgA and Cor one month before examination (P<0.05);The factor III showed negative correlation to the change rate of Cor (P<0.05);The factor IV showed no significant correlation to the testing indexes (P>0.05).


CONCLUSIONS
Stress and alexithymia in stress could result in the changes of SIgA and Cor in saliva.
Lin
Shi
S
School of Stomatology, Zhejiang University, Hangzhou, China.
Zhao
Shi-fang
SF
Yan
Fu-hua
FH
D000342:Affective Symptoms / Q000523:psychology*; D006801:Humans; D006854:Hydrocortisone / Q000737:chemistry*; D007071:Immunoglobulin A, Secretory / Q000737:chemistry*; D008297:Male; D012463:Saliva / Q000737:chemistry*; D013315:Stress, Psychological
D007071:Immunoglobulin A, Secretory; D006854:Hydrocortisone