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Cyclooxygenase-2 (COX-2) and thromboxane synthase (TBXAS) are important enzymes involved in the arachidonic acid pathway and synthesis of prostaglandins. We examined COX-2 and TBXAS immunoreactivity in 150 surgically resected thyroid specimens using immunohistochemistry to determine expression in benign and malignant thyroid lesions and to examine their roles in thyroid tumor progression. Papillary...
Recent studies have examined the role of cyclooxygenase-2 (Cox-2) expression in normal pituitaries and pituitary adenomas and have suggested a role for Cox-2 in the regulation of angiogenesis in the pituitary. Thromboxane synthase (TBXAS), which catalyzes the synthesis of thromboxane A2, is one of the downstream enzymes in Cox metabolism and appears to play a role in the regulation of invasiveness...
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