Background—Pollution by particulates has been consistently associated with increased cardiovascular morbidity and mortality. However, the mechanisms responsible for these effects are not well-elucidated. Methods and Results—To assess to what extent and how rapidly inhaled pollutant particles pass into the systemic circulation, we measured, in 5 healthy volunteers, the distribution of radioactiv...

OBJECTIVE A 61 years old woman presented with low grade fever and weight loss for a month. Thyroid function tests showed hyperthyroidism: increased technetium-99m pertechnetate ((99m)Tc O(-)4) and radioiodine ((131)I) uptake and elevated thyroid stimulating hormone receptor antibodies (TSHRAb). She also had high erythrocyte sedimentation rate. Fine-needle aspiration (FNA) biopsies of left thyro...

Received 2/6/2002; revised 3/15/2002; accepted 4/17/2002. For correspondence or reprints contact: Shyh-Jen Wang, M.D., Department of Nuclear Medicine, Taichung Veterans General Hospital, 160 Section 3, Taichung Harbor Road, Taichung 407, Taiwan, R.O.C., Tel: (886)4-23741349, Fax: (886)423741348, E-mail: [email protected] Background: Many malignant tumors are characterized by perfusion h...

BACKGROUND Macrophages represent a critical cell type in host defense, development and homeostasis. The ability to image non-invasively pro-inflammatory macrophage infiltrate into a transplanted organ may provide an additional tool for the monitoring of the immune response of the recipient against the donor graft. We therefore decided to image in vivo sialoadhesin (Sn, Siglec 1 or CD169) using ...

UNLABELLED Current electron detectors are either unable to image in vivo or lack sufficient spatial resolution because of electron scattering in thick detector materials. This study was aimed at developing a sensitive high-resolution system capable of detecting electron-emitting isotopes in vivo. METHODS The system uses a lens-coupled charge-coupled-device camera to capture the scintillation ...

Direct and indirect effects of microorganisms on technetium insolubilization in water covering waterlogged soils were studied. Seven soils were waterlogged and then the water covering the soils were collected for further tracer experiments. The samples in contact with air were incubated with TcO4 at 25 ̊C for 4 to 5 days. After incubation, the samples were sequentially separated into four fracti...

In most cases authors are permitted to post their version of the article (e.g. in Word or Tex form) to their personal website or institutional repository. Authors requiring further information regarding Elsevier's archiving and manuscript policies are encouraged to visit: 99 Tc (surrogated by Re) was immobilized in an iron phosphate glass. $1.1 mass% Re was retained, possibly dissolved, in the ...

BACKGROUND Pollution by particulates has been consistently associated with increased cardiovascular morbidity and mortality. However, the mechanisms responsible for these effects are not well-elucidated. METHODS AND RESULTS To assess to what extent and how rapidly inhaled pollutant particles pass into the systemic circulation, we measured, in 5 healthy volunteers, the distribution of radioact...