Drug Metabolism in Normal and Disease States

1972 ◽  
pp. 147-162
Author(s):  
A. H. Conney ◽  
B. Craver ◽  
R. Kuntzman ◽  
E. J. Pantuck
Keyword(s):  
Drug Metabolism ◽  
Disease States

DNA nick end labeling: a reliable marker for apoptosis?

1995 ◽  
Vol 53 ◽  
pp. 962-963
Author(s):  
Anne F. Bushnell ◽  
Sarah Webster ◽  
Lynn S. Perlmutter
Keyword(s):  
Cell Death ◽  
Cultured Cells ◽  
Apoptotic Cell ◽  
Morphological Characteristics ◽  
Detection Methods ◽  
Tissue Preparation ◽  
Preparation Methods ◽  
Dna Laddering ◽  
Disease States ◽  
Reliable Marker

Apoptosis, or programmed cell death, is an important mechanism in development and in diverse disease states. The morphological characteristics of apoptosis were first identified using the electron microscope. Since then, DNA laddering on agarose gels was found to correlate well with apoptotic cell death in cultured cells of dissimilar origins. Recently numerous DNA nick end labeling methods have been developed in an attempt to visualize, at the light microscopic level, the apoptotic cells responsible for DNA laddering.The present studies were designed to compare various tissue processing techniques and staining methods to assess the occurrence of apoptosis in post mortem tissue from Alzheimer's diseased (AD) and control human brains by DNA nick end labeling methods. Three tissue preparation methods and two commercial DNA nick end labeling kits were evaluated: the Apoptag kit from Oncor and the Biotin-21 dUTP 3' end labeling kit from Clontech. The detection methods of the two kits differed in that the Oncor kit used digoxigenin dUTP and anti-digoxigenin-peroxidase and the Clontech used biotinylated dUTP and avidinperoxidase. Both used 3-3' diaminobenzidine (DAB) for final color development.

The Concepts of Prevalence and Incidence as Applied to the Study of Development and Duration of Disease

1968 ◽  
Vol 7 (02) ◽  
pp. 111-117 ◽  
Author(s):  
M. Kashgahian
Keyword(s):  
Mass Screening ◽  
Disease Process ◽  
Incidence Data ◽  
Disease States ◽  
History Of ◽  
Duration Of Disease ◽  
Process Methodology

The proper use of prevalence and incidence data can result in an effective way to study the history of the disease process. Methodology is given whereby the progression, duration and transition of diseases can be elucidated. Prevalence and incidence have been redefined and used in an unconventional way in view of new types of data which are being generated by mass screening projects for disease which are able to discover presymptomatic and preclinical disease states.

Plasminogen Activator Inhibitor-2 and Alpha-Fetoprotein in Various Liver Disease States

1992 ◽  
Vol 68 (03) ◽  
pp. 374-374
Author(s):  
E Özyılkan ◽  
H Şimşek ◽  
O Özdemir ◽  
B Sivri ◽  
Ş Kirazlı ◽  
...  
Keyword(s):  
Liver Disease ◽  
Plasminogen Activator ◽  
Plasminogen Activator Inhibitor ◽  
Alpha Fetoprotein ◽  
Disease States ◽  
Activator Inhibitor

Drug Metabolism Alteration

2020 ◽  
Author(s):  
Keyword(s):  
Drug Metabolism

Nitroxyl Modified Tobacco Mosaic Virus as a Metal-Free High-Relaxivity MRI and EPR Active Superoxide Sensor

2018 ◽  
Author(s):  
Madushani Dharmarwardana ◽  
André F. Martins ◽  
Zhuo Chen ◽  
Philip M. Palacios ◽  
Chance M. Nowak ◽  
...  
Keyword(s):  
Tobacco Mosaic Virus ◽  
Mosaic Virus ◽  
Single Molecule ◽  
Biological Fluids ◽  
Cellular Respiration ◽  
Organic Radical ◽  
Paramagnetic Resonance ◽  
Metal Free ◽  
Disease States

Superoxide overproduction is known to occur in multiple disease states requiring critical care yet non-invasive detection of superoxide in deep tissue remains a challenge. Herein, we report a metal-free magnetic resonance imaging (MRI) and electron paramagnetic resonance (EPR) active contrast agent prepared by “click conjugating” paramagnetic organic radical contrast agents (ORCAs) to the surface of tobacco mosaic virus (TMV). While ORCAs are known to be reduced <i>in vivo</i> to an MRI/EPR silent state, their oxidation is facilitated specifically by reactive oxygen species—in particular superoxide—and are largely unaffected by peroxides and molecular oxygen. Unfortunately, single molecule ORCAs typically offer weak MRI contrast. In contrast, our data confirm that the macromolecular ORCA-TMV conjugates show marked enhancement for <i>T<sub>1</sub></i> contrast at low field (<3.0 T), and <i>T<sub>2</sub></i> contrast at high field (9.4 T). Additionally, we demonstrated that the unique topology of TMV allows for “quenchless fluorescent” bimodal probe for concurrent fluorescence and MRI/EPR imaging, which was made possible by exploiting the unique inner and outer surface of the TMV nanoparticle. <a>Finally, we show TMV-ORCAs do not respond to normal cellular respiration, minimizing the likelihood for background, yet still respond to enzymatically produced superoxide in complicated biological fluids like serum.</a>

Application of an immunoradiometric assay for thyrotrophin in evaluation of thyroidal and nonthyroidal disease states

Pathology ◽  
1987 ◽  
Vol 19 (3) ◽  
pp. 229-232 ◽  
Author(s):  
Graham H. McLellan ◽  
W.J. Riley ◽  
Margaret B. Summers ◽  
Paul Sudholz ◽  
Peter E. Hickman
Keyword(s):  
Immunoradiometric Assay ◽  
Disease States
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