Gina Christiansen

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The suitability of formalin-fixed and paraffin-embedded tumor material was evaluated for molecular analysis of the RET proto-oncogene. We analyzed exons 10, 11, and 16 for point mutations in seven sporadic and six multiple endocrine neoplasia (MEN) 2A-associated pheochromocytomas by a nonradioactive single-strand conformation polymorphism assay followed by(More)
BACKGROUND The distinction of sporadic from inherited medullary thyroid carcinomas (MTCs) is of clinical importance because of the differences in prognosis, and the need for family screening for genetic counseling required in the latter. Germline mutations in the RET protooncogene are associated with multiple endocrine neoplasia (MEN) type 2A, familial(More)
Pyrazinamidase of Mycobacterium tuberculosis catalyzes the conversion of pyrazinamide to the active molecule pyrazinoic acid. Reduction of pyrazinamidase activity results in a level of pyrazinamide resistance. Previous studies have suggested that pyrazinamidase has a metal-binding site and that a divalent metal cofactor is required for activity. To(More)
Dynamic cavernosography is the most important technique for identifying and localizing venous leakage in erectile dysfunction. The use of digital radiography with a greater degree of tolerance in the exposure, a more dynamic signal, and a shorter exposure time can enhance the diagnostic value of conventional cavernosography. A further advantage of the(More)
This is a report on the clinical application of digital luminescence radiographs compared to conventional x-rays during examinations with contrast medium. We present selected examinations of the period October to December 1988. By a constant quality of hard copies the digital examinations are equal to conventional x-rays. Regions of little difference in(More)
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