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Leukocyte alkaline phosphatase and carcinoembryonic antigen in breast cancer patients. Influence of the treatment on the markers.

Leukocyte alkaline phosphatase (LAP) scores and carcinoembryonic antigen (CEA) levels were analyzed in 53 patients suffering from breast cancer. All patients underwent mastectomy and received adjuvant treatment, and all lived more than 5 years after diagnosis without metastatic disease. Thirty-three patients received adjuvant radiotherapy, and 20 patients received adjuvant chemotherapy. The median LAP score before radiotherapy was 117 +/- 48; two months after the beginning of radiotherapy this value was 175 +/- 71, being significantly higher than the original value (p less than 0.001), and one year after the beginning of radiotherapy it was 105 +/- 63, which approximated the normal scores. The median LAP score before chemotherapy was 138 +/- 69; two months after the beginning of chemotherapy it was 194 +/- 63, i.e. significantly higher than before chemotherapy (p less than 0.002), and one year after the beginning of chemotherapy it was 150 +/- 56. Median CEA levels before radiotherapy were 6.4 +/- 5.1 ng/ml; two months after the beginning of radiotherapy this value was 6.0 +/- 5.0 ng/ml; and one year later 7.4 +/- 6.2 ng/ml. Median CEA levels before chemotherapy were 8.1 +/- 12.0 ng/ml; two months after the beginning of chemotherapy 12.6 +/- 13.0 ng/ml (p less than 0.05) in comparison with the values before chemotherapy; and one year after the beginning of chemotherapy it was 8.6 +/- 5.4 ng/ml. We concluded that the LAP scores were influenced by adjuvant radio- or chemotherapy, and the CEA levels were influenced by chemotherapy.