Cu, P, Mg, UA,TP, AL B, LDL-C, Lpa, LDH and cTl, without statistical significance , as compared with those before the escort mis-sion(P>0.05).However, statistical significance could be found in the levels of ALT , AST, CK, CK-MB(P<0.05 or P<0.01). Conclusion In accordance with the changes in the physiological indexes of prolonged deployed navy afloat personnel , comprehensive intervention could recover the serum levels of K , Na, Cl, Ca, Fe, Cu, P, Mg, UA,TP, ALB, LDL-C and Lpa.The levels of ALT, AST, CK, CK-MB were improved, but failed to recover to the predicted levels .Detection of cTl, a specific myocardial injury biomark-er, indicated that no obvious cardiac damage was done to cardiac mussel , suggesting that the elevated levels of enzymes were a reflection of enzyme damage induced by high-intensity training and fatigue .

Objective To assess the values of color Doppler and magnetic resonance imaging (MRI) in the identification of cervical lymph node micrometastasis of tongue cancer.Methods Totally 96 cases of tongue cancer with impalpable neck lymph node was examined with color Doppler and MRI within one week before surgery.Chi-square test was used to assess if the presence of regional lymph node micrometastasis,histopathological analysis as a golden standard lymph node micrometastasis.Results For the diagnosis of cervical lymph node micrometastasis,color Doppler was significantly better than MRI in sensitivity (72.5％ vs 50.0％,P=0.039) and the accuracy (78.1％ vs 64.6％,P =0.038),but no significant difference in the specificity (82.1％ vs 75.0％,P =0.357),the positive predictive value (74.4％ vs 58.8％,P =0.159) and the negative predictive value (80.7％ vs 67.7％,P =0.108).Conclusion Color Doppler is better than MRI in the sensitivity and accuracy for the diagnosis of cervical lymph node micrometastasis of tongue cancer.