Results 261 to 270 of about 183,665 (310)
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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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Journal of Applied Physiology, 1986
The alveolar macrophage is one of the few tissue macrophage populations readily accessible to study both in the human and in animals. Since harvesting of these cells by bronchoalveolar lavage was first described in 1961, alveolar macrophages have been extensively investigated.
A O, Fels, Z A, Cohn
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The alveolar macrophage is one of the few tissue macrophage populations readily accessible to study both in the human and in animals. Since harvesting of these cells by bronchoalveolar lavage was first described in 1961, alveolar macrophages have been extensively investigated.
A O, Fels, Z A, Cohn
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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, 1992Occurrence of micronuclei was monitored in pulmonary alveolar macrophages collected from 31 individuals undergoing diagnostic bronchoalveolar lavage. The overall frequency of micronucleated cells was 3.88 +/- 1.84/1000, without any significant difference attributable to sex, age, pathology, occupation, or smoking habits.
D'AGOSTINI, FRANCESCO +3 more
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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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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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A continuous alveolar macrophage cell line: Comparisons with freshly derived alveolar macrophages
In Vitro Cellular & Developmental Biology, 1989Responses of a recently developed rat alveolar macrophage cell (NR8383.1) line were compared to those of freshly derived alveolar macrophages in vitro. Marked inter- and intraspecies heterogeneity in levels of phagocytosis of unopsonized Pseudomonas aeruginosa or zymosan was noted among freshly derived alveolar macrophages from rats, rabbits, and ...
R J, Helmke, V F, German, J A, Mangos
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Archives of Internal Medicine, 1971
Pulmonary alveolar macrophages manifest a sodium ion-potassium ion activated, magnesium ion dependent adenosine triphosphatase (ATPase) activity. The characteristics of this ATPase were investigated in subcellular fractions and in intact cells derived from rabbits and sheep. Equimolar amounts of Mg + + and ATP were needed for maximal activation by Na +
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Pulmonary alveolar macrophages manifest a sodium ion-potassium ion activated, magnesium ion dependent adenosine triphosphatase (ATPase) activity. The characteristics of this ATPase were investigated in subcellular fractions and in intact cells derived from rabbits and sheep. Equimolar amounts of Mg + + and ATP were needed for maximal activation by Na +
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New England Journal of Medicine, 1998
Figure 1. A photomicrograph of a bronchoalveolar-lavage specimen shows an alveolar macrophage with a segmented nucleus (Giemsa stain, ×400).
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Figure 1. A photomicrograph of a bronchoalveolar-lavage specimen shows an alveolar macrophage with a segmented nucleus (Giemsa stain, ×400).
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