Does monoamine oxidase A down-regulation contribute to high metanephrine concentration in pheochromocytoma?
High concentrations of MN in tumor do not only arise from CAT overproduction but also from low MAOA expression, resulting in higher substrate availability for COMT.
VATS lobectomy for stage I lung cancer can be performed safely with minimal morbidity, satisfying survival comparable with that of lobectomy through conventional thoracotomy. VATS approach is a feasible surgical technique for patients with stage I lung cancer.