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Arthritis Rheum
April 2007
Department of Hard Tissue Engineering, Graduate School, Tokyo Medical and Dental University, Tokyo, Japan.
Objective: The cyclic peptide WP9QY (YCWSQYLCY) was designed to mimic the most critical tumor necrosis factor alpha (TNFalpha) recognition loop on TNF receptor I, and it prevents interactions of TNFalpha with its receptor. We undertook this study to compare the effects of the WP9QY peptide on collagen-induced arthritis (CIA) in mice with those of anti-TNFalpha monoclonal antibody.
Methods: CIA was induced by primary and secondary immunizations.
Med Phys
December 2004
Centerfor In Vivo Microscopy, Duke University Medical Center, Durham, North Carolina 27710, USA.
Cardiopulmonary imaging in rodents using micro-computed tomography (CT) is a challenging task due to both cardiac and pulmonary motion and the limited fluence rate available from micro-focus x-ray tubes of most commercial systems. Successful imaging in the mouse requires recognition of both the spatial and temporal scales and their impact on the required fluence rate. Smaller voxels require an increase in the total number of photons (integrated fluence) used in the reconstructed image for constant signal-to-noise ratio.
View Article and Find Full Text PDFMed Phys
November 2003
Department of Radiology and Radiological Sciences, Vanderbilt University Medical Center, Nashville, Tennessee 37232-2675, USA.
The purpose of this study was to evaluate the effects of system parameters (focal spot size, tube voltage, geometry, detector resolution, and image noise) and object characteristics (edge gradient/ shape, composition, thickness, and overlying attenuating material) upon the edge enhancement effect in phase-contrast radiography. Each variable of interest was adjusted and images of a 3 mm lucite phantom were obtained with the other variables remaining constant. A microfocus x-ray source coupled to a CCD camera with an intensifying screen was used to acquire the digital images.
View Article and Find Full Text PDFMedicina (B Aires)
March 2000
Centro de Asistencia Integral del Paciente Chagásico, Hospital General de Agudos José Maria Ramos Mejía, Buenos Aires, Argentina.
Considerable advances in the clinical pathological and pathogenic aspects of Chagas disease have been made since the Brazilian physician Carlos Chagas described the disease in 1909. The disease caused by the flagellate protozoon parasite Trypanosoma cruzi is transmitted to humans by a blood sucking triatomine and much less frequently by blood transfusion. It is estimated that 18 million are infected and that about 100 million people from Latin America are at risk of contracting T.
View Article and Find Full Text PDFJ Reprod Fertil
May 1996
University Department of Medicine, Manchester Royal Infirmary, UK.
Immunolocalization techniques were used to examine the distribution of the matrix metalloproteinases gelatinase B and stromelysin 1 in human endometrial specimens, taken across the normal menstrual cycle. Gelatinase B was produced by glandular epithelial cells for approximately 7 days during the proliferative phase, with polymorphonuclear leucocytes, macrophages and eosinophils providing most of this enzyme at menstruation. There was no evidence that gelatinase B is produced by stromal cells or mast cells during the cycle.
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