Evidence is presented that modulation of the maximum velocity of a particulate low K-m cyclic adenosine 3':5'-monophosphate (cyclic AMP) phosphodiesterase by thyroid hormones is one mechanism for the regulation of the responsiveness of rat epididymal adipocytes to lipolytic agents such as epinephrine and glucagon. Fat cells of propylthiouracil-induced hypothyroid rats are unresponsive to lipoly...

BACKGROUND Propylthiouracil is the most common drug used to treat hyperthyroidism. However, this drug could cause a severe disease, antineutrophilic cytoplasmic antibody-associated vasculitis (AAV), which was usually misdiagnosed. METHODS We reported a 60-year-old woman of propylthiouracil-induced AAV manifested as blood coagulation disorders. The patient was admitted because of hyperthyroidi...

J Nucl Med. Fisher, Brenda Sandmaier, Friedrich Schuening, Rainer Storb and Frederick R. Appelbaum James A. Bianco, Paul A. Brown, Larry Durack, Christopher Badger, Irwin Bernstein, Janet Eary, Jim Durham, Darrell Antibody in Normal Dogs: Dosimetry and Clinical Implications Effects of Propylthiouracil on the Biodistribution of an Iodine-131-Labeled Anti-Myeloid http://jnm.snmjournals.org/conten...

A 46-year-old woman with Graves' disease was admitted for anemia and thrombocytopenia. She had previously been treated with methimazole but she self-discontinued the treatment 6 months prior to admission. She was diagnosed with Evans syndrome associated with Graves' disease and treated with propylthiouracil without corticosteroids, which normalized her thyroglobulin level. Surprisingly, while E...

Two myosin isoforms are expressed in myocardium, alphaalpha-homodimers (V(1)) and betabeta-homodimers (V(3)). V(1) exhibits higher velocities and myofibrillar ATPase activities compared with V(3). We also observed this for cardiac myosin from normal (V(1)) and propylthiouracil-treated (V(3)) mice. Actin velocity in a motility assay (V(actin)) over V(1) myosin was twice that of V(3) as was the m...

Previous studies have demonstrated that oral stimulation with quinine elicits Fos-like immunoreactivity in the first-order gustatory nucleus, the NST, with a different topographic distribution than sucrose or citric acid. However, it is unknown whether the quinine pattern is unique to this alkaloid or common across bitter stimuli with different chemical structures. Indeed, recent physiological ...

Triiodo-L-thyronine (T(3)) added in vitro to fat pads from normal, or propylthiouracil-treated rats enhanced the rate of release of glycerol and free fatty acids (FFA) in the presence of epinephrine. An effect of T(3) was also demonstrated in the presence of adrenocorticotropic hormone (ACTH), thyroid-stimulating hormone, or glucagon in studies with tissue from normal rats. The minimal effectiv...

Tri-iodothyronine (T3) and thyroxine (T4) as well as 3,5-di-iodothyronine (T2) stimulated O2 consumption by isolated perfused livers from hypothyroid rats at a concentration as low as 1 pM by about 30% within 90 min. Application of T2 resulted in a faster stimulation than with application of T3 or T4. Inhibition of iodothyronine monodeiodinase by propylthiouracil, thereby blocking the degradati...

PURPOSE to evaluate the experience of Hospital das Clínicas da Faculdade de Medicina de Botucatu da Universidade Estadual Paulista 'Júlio de Mesquita Filho', in the follow-up of pregnant women with hyperthyroidism. METHODS Sixty patients, divided in groups with compensated hyperthyroidism (CHG=24) and with uncompensated hyperthyroidism (UHG=36) were retrospectively studied and compared concer...

OBJECTIVES/HYPOTHESIS The purpose of this study was to validate the use of edible taste strips for measuring taste recognition thresholds for the bitter-tasting compound 6-n-propylthiouracil (PROP). STUDY DESIGN Taste recognition thresholds for PROP were obtained by two separate methods. Thresholds were also identified in subjects whose airflow through the nose was blocked. Threshold values w...