Publications by authors named "J K Siemsen"

Cells of the innate immune system retain memory of prior exposures through a process known as innate immune training. β-glucan, a Dectin-1 ligand purified from the Candida albicans cell wall, has been one of the most widely utilized ligands for inducing innate immune training. However, many Dectin-1 ligands exist, and it is not known whether these all produce the same phenotype.

View Article and Find Full Text PDF

Thallium 201 myocardial perfusion scanning revealed focal left ventricular defects at rest in four of 30 patients (13 percent) with systemic sarcoidosis. All the defects decreased in size during thallium stress imaging, a finding opposite of that usually seen in myocardial ischemia. Nine patients had abnormal right ventricular visualization at rest.

View Article and Find Full Text PDF

Prospective analysis of the efficacy of 99mTc-IDA cholescintigraphy and cholecystosonography showed that both are excellent techniques for assessing patients with suspected acute cholecystitis (accuracy 84.7% and 88.1% respectively).

View Article and Find Full Text PDF

5-Fluorouracil (5-FU) is an effective anti-tumor drug, which has been used both as a single agent and in combination with other chemotherapeutic agents for the treatment of tumors such as breast and colorectal carcinoma. We synthesized 5-FU with trace amounts of 18F-5-FU and administered the compounds intravenously to 6 cancer patients. The patients were scanned at 2 hr intervals for 12 hrs and their urine collected whenever possible.

View Article and Find Full Text PDF