Results 221 to 230 of about 114,838 (266)
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Hospital Practice, 1990
Alveolar macrophages play important roles in lung homeostatic and defense mechanisms. These essential physiologic functions, however, may be subverted. What influences the cells one way or the other? Recent evidence is reviewed. Many of the relevant stimulatory and inhibitory factors are produced by alveolar macrophages themselves.
A, Holian, R K, Scheule
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Alveolar macrophages play important roles in lung homeostatic and defense mechanisms. These essential physiologic functions, however, may be subverted. What influences the cells one way or the other? Recent evidence is reviewed. Many of the relevant stimulatory and inhibitory factors are produced by alveolar macrophages themselves.
A, Holian, R K, Scheule
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THE PULMONARY ALVEOLAR MACROPHAGE
Australian and New Zealand Journal of Medicine, 1984Abstract:The pulmonary alveolar macrophage (PAM) occupies a unique environment, with exposure to both the atmosphere and the blood stream. This position enables the PAM to perform its primary role of protecting the lung from inhaled, potentially damaging, agents.
G, McLennan, N, DeYoung
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Micronuclei in Human Alveolar Macrophages
Respiration, 2009Occurrence of micronuclei was monitored in pulmonary alveolar macrophages collected from 31 individuals undergoing diagnostic bronchoalveolar lavage. The overall frequency of micro nucleated cells was 3.88 ± 1.84%₀, without any significant difference attributable to sex, age, pathology, occupation, or smoking habits.
D'AGOSTINI, FRANCESCO +3 more
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Inhibition of alveolar macrophages by pentoxifylline
Critical Care Medicine, 1991Pentoxifylline can inhibit blood leukocyte functions in vitro, and some inflammatory processes in the lung in vivo. Therefore, we examined the effects of pentoxifylline on alveolar macrophage functions in vitro. Alveolar macrophages were harvested from normal rat lungs by airway lavage.
J H, Williams +3 more
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1960
The alveolar macrophages, or dust cells, of the lung are cells which lie free within the air spaces of the lung alveoles. They have been extensively studied in the light microscope [for summary see (1)]. Their phagocytic potentialities are likewise known from light microscopic studies, in which dyes, India ink, or oils were injected into the trachea of
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The alveolar macrophages, or dust cells, of the lung are cells which lie free within the air spaces of the lung alveoles. They have been extensively studied in the light microscope [for summary see (1)]. Their phagocytic potentialities are likewise known from light microscopic studies, in which dyes, India ink, or oils were injected into the trachea of
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Water permeability of alveolar macrophages
American Journal of Physiology-Cell Physiology, 1986The hydraulic conductivity coefficient (Lp) of alveolar macrophages, recovered by lavage from dog lungs, was determined by following volume changes induced by changes of nonpermeating solute concentrations of suspending fluid as a function of time at 20 degrees C. The volume changes were monitored as changes in absorbance of the suspended cells at 600
R A, Garrick +3 more
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Functional Heterogeneity of Alveolar Macrophages
1981The alveolar macrophage is the first line of defense against inhaled toxicants, infectious organisms and inert dusts. While much attention has been paid to the mechanisms of activation of peritoneal macrophages, little information is available concerning those of the alveolar macrophage. Alveolar macrophages have been reported to differ from peritoneal
B S, Zwilling, L B, Campolito
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Spiramycin uptake by alveolar macrophages
Journal of Antimicrobial Chemotherapy, 1988The in-vitro and in-vivo uptake of spiramycin by human and animal alveolar macrophages was studied. In-vitro penetration was studied in guinea pig and human alveolar macrophages incubated in medium 199 at 37 degrees C containing spiramycin at various concentrations. Results were expressed as the cellular/extracellular concentration ratio (C/E).
R, Harf +4 more
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Alveolar Macrophages in Perinatal Infants
Pediatrics, 1984The presence of alveolar macrophages in the neonatal lung at the time of autopsy is correlated with the presence of pulmonary lesions and with the duration of postnatal life. Alveolar macrophages were noted at 20 weeks of gestation in infants with congenital pneumonia, but were not present in most full-term infants who were stillborn.
E, Alenghat, J R, Esterly
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Formation of lipoxins by alveolar macrophages
Biochemical and Biophysical Research Communications, 1988Rat alveolar macrophages incubated with (15S), 15-hydroperoxy-5,8, 11-cis-13-trans-eicosatetraenoic acid (15-HPETE) in the presence of the calcium ionophore A23187 produced a series of polar compounds. Reverse-phase high performance liquid chromatography (RP-HPLC) was used to purify these compounds and their identities were characterized by physical ...
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