منابع مشابه
Quantitative Studies of Phagocytosis
Kinetic analysis of the initial ingestion rate of albumin-coated paraffin oil particles by human granulocytes and rabbit alveolar macrophages was undertaken to study the mechanism of action of cations and of heat-labile opsonin on engulfment. The rate of uptake of the particles was stimulated by Ca(++), Mg(++), Mn(++), or Co(++). At high concentrations (> 20 mM) Ca(++) and Mg(++) inhibited the ...
متن کاملStudies on the Mechanism of Phagocytosis
Phagocytic leukocytes have on their plasma membranes receptors for the Fc portion of immunoglobulin G (IgG) (1-9) and for a cleavage product of the third component of complement (C3) (3-5, 8, 10-15). Particles coated with IgG or C3 attach to the corresponding receptors on the plasma membranes of phagocytic cells. We have been studying the roles of these ligands (IgG and C3) and of their recepto...
متن کاملترجمه بخشی از کتاب "critical readings in translation studies"
چکیده در دنیای پیچیده ی امروز، تغییرات زیادی در زندگی بشری در حال وقوع اند و شاهد رقابت های بسیار فشرده ی جوامع در دستیابی به فناوری برتر و قدرت بیشترهستیم. به نظر می رسد که فرد وجامعه مجبورند به طریقی در وضعیت خویش دگرگونی ایجاد کنند تا از قافله ی علم، فناوری، و پیشرفت عقب نمانند. رشته مطالعات ترجمه نیز از این قاعده مستثنا نیست. علی رغم وسعت روز افزون پژوهش در این حوزه و میان رشته ای بودن مطال...
Corticosteroids, serum, and phagocytosis: in vitro and in vivo studies.
The phagocytic-bactericidal capacity (PBC) of human polymorphonuclear leukocytes (PMNs) for strains of Klebsiella (K) and of Enterococcus (E) was unaffected in vitro by the presence of 100 mug of either hydrocortisone (HC) or of methylprednisolone (MP) per ml in the medium. At higher concentrations (500 to 2,000 mug/ml) both compounds impaired PBC-K and PBC-E, but the latter was less sensitive ...
متن کاملStudies on phagocytosis in patients with acute bacterial infections.
Polymorphonuclear leukocytes (PMN) and monocytes from 20 patients with acute bacterial infections were examined for phagocytic function. PMN of patients expressed markedly enhanced phagocytosis as measured by the ingestion of erythrocyte (E)IgG and IgG/C3b-coated E. Phagocytosis of E coated with C3b alone was not seen, while low levels of ingestion of iC3b-E by patients' PMNs was noted. Monocyt...
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ژورنال
عنوان ژورنال: Journal of Infectious Diseases
سال: 1905
ISSN: 0022-1899,1537-6613
DOI: 10.1093/infdis/2.1.128