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The Roles Of Dna Polymerases Alpha, Beta, And Gamma In Dna Repair Synthesis Induced In Hamster And Human Cells By Different Dna Damaging Agents., M. R. Miller, D. N. Chinault Jan 1982

The Roles Of Dna Polymerases Alpha, Beta, And Gamma In Dna Repair Synthesis Induced In Hamster And Human Cells By Different Dna Damaging Agents., M. R. Miller, D. N. Chinault

Faculty & Staff Scholarship

No abstract provided.

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Microtubule Dynamics And Glutathione Metabolism In Phagocytizing Human Polymorphonuclear Leukocytes., B R Burchill, J M Oliver, C B Pearson, E D Leinbach, R D Berlin Feb 1978

Microtubule Dynamics And Glutathione Metabolism In Phagocytizing Human Polymorphonuclear Leukocytes., B R Burchill, J M Oliver, C B Pearson, E D Leinbach, R D Berlin

SoM Articles

Glutathione oxidants such as tertiary butyl hydroperoxide were shown previously to prevent microtubule assembly and cause breakdown of preassembled cytoplasmic microtubules in human polymorphonuclear leukocytes. The objectives of the present study were to determine the temporal relationship between the attachment and ingestion of phagocytic particles and the assembly of microtubules, and simultaneously to quantify the levels of reduced glutathione and products of its oxidation as potential physiological regulators of assembly. Polymorphonuclear leukocytes from human peripheral blood were induced to phagocytize opsonized zymosan at 30 degrees C. Microtubule assembly was assessed in the electron microscope by direct counts of microtubules in …

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Patterns Of Fatty Acid Release From Endogenous Substrates By Human Platelet Homogenates And Membranes, A Derksen, P Cohen Dec 1975

Patterns Of Fatty Acid Release From Endogenous Substrates By Human Platelet Homogenates And Membranes, A Derksen, P Cohen

Faculty, Staff and Students Publications

We describe a method for measuring the release of fatty acids from endogenous substrates of human platelet homogenates and membranes. The method depends on the availability of lipids whose fatty acids are odd-chained and therefore suitable as internal reference compounds that, at the time of lipid extraction, can be added to an incubation to permit subsequent quantification of the content of free fatty acids or fatty acids esterified to specific lipids. We found four types of lipolytic activities in human platelets. In homogenates at pH 4.0 a triglyceride lipase operated as shown by the synchrony of triglyceride degradation and release …

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Chemotactic Factor Inactivator In Normal Human Serum., J L Berenberg, P A Ward May 1973

Chemotactic Factor Inactivator In Normal Human Serum., J L Berenberg, P A Ward

SoM Articles

Normal human serum contains an inactivator of chemotactic factors for neutrophilic leukocytes. The chemotactic factor inactivator (CF-I) remains soluble when serum is fractionated with ammonium sulfate (at 45% saturation), directly and irreversibly inactivates chemotactic factors, and it has a broad spectrum of activity as indicated by its inactivation of the chemotactic fragments of human C3 and C5 (third and fifth components of complement), C5̅6̅7̅, and the bacterial chemotactic factor derived from Escherichia coli. CF-I appears as a biphasic activity according to preparative techniques of sucrose density ultracentrifugation, electrophoresis, and gel filtration. Studies on the interaction of CF-I with the radiotagged …

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