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PM Hanno 《Canadian Metallurgical Quarterly》1994,21(1):89-91
Limited data and an accumulated body of anecdotal experience with the tricyclic class of antidepressants suggest that this group of drugs (especially amitriptyline) may be an effective treatment modality in nonulcerative interstitial cystitis. Both the ease of administration and the relatively rapid onset of relief make these types of drugs appropriate to consider for first-line therapy after bladder distention has failed. 相似文献
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Hanno Hardt 《The Journal of communication》1989,39(2):114-131
A review of U.S. press histories reveals a common failure to consider immigration and the formation of an ethnic press as constituent elements of an American culture and addresses the need for a cultural history of the media that breaks with current practices. 相似文献
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Anderson DS Kirchner M Kellogg M Kalish LA Jeong JY Vanasse G Berliner N Fleming MD Steen H 《Analytical chemistry》2011,83(21):8357-8362
Disorders of iron metabolism affect over a billion people worldwide. The circulating peptide hormone hepcidin, the central regulator of iron distribution in mammals, holds great diagnostic potential for an array of iron-associated disorders, including iron loading (β-thalassemia), iron overload (hereditary hemochromatosis), and iron deficiency diseases. We describe a novel high-throughput matrix-assisted laser desorption ionization time-of-flight (MALDI-TOF) mass spectrometry assay for quantification of hepcidin in human plasma. This assay involves enrichment using a functionalized MALDI chip, a novel solvent-detergent precipitation buffer, and quantification using a stable isotope labeled internal standard. The linear range of hepcidin in plasma was 1-120 nM, with a low limit of quantification (LOQ) (1 nM), high accuracy (<15% relative error (RE)), and high precision (intraday average 5.52-18.48% coefficient of variation (CV) and interday 9.32-14.83% CV). The assay showed strong correlation with an established hepcidin immunoassay (Spearman; R(2) = 0.839 n = 93 ethylenediaminetetraacetic acid (EDTA) plasma). A collection of normal healthy pediatric samples (range 3.8-32.5 ng/mL; mean 12.9 ng/mL; n = 119) showed significant differences from an adult collection (range 1.8-48.7 ng/mL; mean 16.1 ng/mL; n = 95; P = 0.0096). We discuss these preliminary reference ranges and correlations with additional parameters in light of the utility and limitations of hepcidin measurements as a stand-alone diagnostic and as a tool for therapeutic intervention. 相似文献