نتایج جستجو برای: 695
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Correspondence: william J Gradishar robert H Lurie Comprehensive Cancer Center, Northwestern University Feinberg School of Medicine, 676 North St. Clair, Suite 850, Chicago, iL, 60611, USA Tel +1 312-695-4541 Fax +1 312-695-6189 email [email protected] Abstract: Despite the activity of standard chemotherapies in advanced breast cancer, disease progression remains inevitable. Most pat...
where CH and C are species of ferricytochrome c which exhibit a 69.5 nm absorbance band, and NC (no color) is a form without this band; the oxidation-reduction potentials of CH and NC differ significantly. The values of the constants in this scheme were determined at 25” except for the oxidation and reduction rate constants, which were determined at 22”. The pH dependence of the observed rate c...
OBJECTIVES To study the positivity of sputum acid fast bacilli (AFB) smears in patients with pulmonary tuberculosis using 24 hour sputum collection. To detect HIV seropositivity in patients suffering from tuberculosis, and to analyse the pattern of tuberculosis disease in this subgroup. To determine the outcome of patients treated with directly observed therapy. SETTING The tuberculosis refer...
Femtosecond excitation of the red edge of the chlorophyll a Q(Y) transition band in photosystem I (PSI), with light of wavelength > or = 700 nm, leads to wide transient (subpicosecond) absorbance changes: positive DeltaA between 635 and 665 nm, and four negative DeltaA bands at 667, 675, 683, and 695 nm. Here we compare the transient absorbance changes after excitation at 700, 705, and 710 nm a...
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 683 1. Historical Overview of the Measurement of Energy Expenditure (EE) Techniques . . . . . . . . . . . . . . . . 684 2. Methods for the Measurement of EE: Overview and Considerations . . . . . . . . . . . . . . . . . . . . . . ....
The beta-amyloid precursor proteins (betaAPPs) are a family of glycosylated transmembrane proteins that include in their sequences the beta-amyloid peptide, a major component of the characteristic amyloid deposits or senile plaques found in the brains of Alzheimer's disease patients and aged Down's syndrome subjects. Various betaAPP isoforms, mainly betaAPP-695, betaAPP-714, betaAPP-751 and bet...
BACKGROUND An inherited germline P53 mutation has been identified in cases of childhood adrenocortical carcinoma (ACT), a neoplasm with a high incidence in southern Brazil. The penetrance of ACT in carriers of the point mutation, which encodes an arginine-to-histidine substitution at codon 337 of TP53 (R337H), has not been determined. OBJECTIVE To investigate the penetrance of childhood ACT i...
Numerous factors including ultraviolet (UV) radiation and growth factors regulate the specific function of epidermal melanocytes. A recently discovered epidermal growth factor is sAPP, the soluble N-terminal ectodomain of the beta-amyloid precursor protein (APP). Using whole mount preparations of isolated human epidermis, we detected a small population of basal cells, which expressed exceptiona...
BACKGROUND Recurrent acute pancreatitis (RAP) and chronic pancreatitis (CP) are complex syndromes associated with numerous etiologies, clinical variables and complications. We developed the North American Pancreatitis Study 2 (NAPS2) to be sufficiently powered to understand the complex environmental, metabolic and genetic mechanisms underlying RAP and CP. METHODS Between August 2000 and Septe...
BACKGROUND Determination of quartz by Fourier transform infrared spectrometry (FTIR) is not specific: the obtained results are influenced by matrix components, some of which cause spectral interference. The aim of the study was to evaluate the effect of dust components responsible for spectral interference with quartz on the results of its determinations, and to develop methods to minimize the ...
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