Results 261 to 270 of about 178,356 (314)
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Schistosoma mansoni: Tracer studies in mice
Experimental Parasitology, 1978Abstract Mice with patent Schistosoma mansoni infections were injected via the tail vein with peroxidase and Thorotrast, and the ingestion of these tracers by the worms was followed over time. Both tracers are found initially in the crypts of the dorsal tegument of the male; however, the disappearance of the peroxidatic activity from the crypts ...
S, Carlisle, L S, Weisberg
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Problems in the Analysis of Dynamic Tracer Studies
Clinical Science, 1978The identity of the body is not dependent on the persistence of the same material particles … during life, by the process of eating and digesting, the body undergoes perpetual changes. St Thomas Aquinas, quoted by Hevesy (1962).
J, Reeve, N, Veall, R, Wootton
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Diagnostic Studies with Radioactive Isotope Tracers
Radiology, 1952The technical utilization of radioactive isotopes for diagnostic procedures has followed a somewhat different line of development at Harper Hospital (Detroit) from that in many other institutions. While numerous details have been reported and some of them have been demonstrated before this Society previously, we would like at this time to present the ...
K E, CORRIGAN, H S, HAYDEN
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A Method of Study of Radioactive Tracer Kinetics
IEEE Transactions on Biomedical Engineering, 1979This paper presents an approach to the problem of estimating the number of exponential functions and the pertinent parameters in the output of a radioactive tracer kinetic process. In particular, application of a criterion called an information theoretical criterion (AIC) for the estimation of the number of exponential functions is proposed; AIC was ...
F, Kajiya +4 more
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RADIOIODINE TRACER STUDIES IN THIOCYANATE MYXEDEMA*
The Journal of Clinical Endocrinology & Metabolism, 1951LTERATIONS in the function of the thyroid gland associated with the administration of potassium thiocyanate have been recognized clinically for a number of years. In 1936 Barker (1) observed 3 patients in whom during treatment with potassium thiocyanate “peculiar myxedematous swelling of the tissues of the face, orbital areas, and cervical region ...
C M, BLACKBURN +2 more
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Gold Tracer Studies of Muscle Regeneration
Journal of Neuropathology & Experimental Neurology, 1976Rabbits were injected with soluble gold, and cold injury was inflicted upon their extraocular muscles. Following the typical freeze-thaw damage in which the myofiber basement membrane is preserved, a polymorphonuclear granulocyte exudation occurred. At this stage only a few interstitial cells with long processes contained gold.
R, Yarom +4 more
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Tracer Studies on a Transplantable Hamster Melanoma
Archives of Ophthalmology, 1964The problem of early detection of intraocular tumors is a very real one and needs no belaboring for the ophthalmologist. Since Ehrlich propounded the concept of specific chemotherapy, researchers have looked for tissue-specific drugs. The possibility of tumor detection with the help of substances that localize in specific tissues has been explored with
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Protocol Development for Biological Tracer Studies
1998Improved instrumentation and the increased availability of labeled compounds have democratized the application of isotope-dilution (tracer) methodology in nutrient metabolism. Still, the most challenging aspects of tracer experimentation reside in the steps that precede the measurement of an isotopically labeled tracer, i.e.
S R, Dueker, A D, Jones, A J, Clifford
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Tracer clearance studies in hydrocephalus: A critique
Acta Neurochirurgica, 1981Quantitative isotope ventriculography (QIV) has been suggested as a method for diagnosing hydrocephalus and predicting the results of CSF shunt insertion. However, the physiological significance of this and other tracer clearance studies is questionable.
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Synthesis of penicillins for tracer studies
The International Journal of Applied Radiation and Isotopes, 1962The synthesis of Penicillin K, Penicillin X, Penicillin F and its dihydro derivative, and C/sup 14/-labeled benzylpenicillin are described, starting from preparations containing 6aminopenlcillanic acid. (T.F.H.)
D.E. Nettleton +3 more
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