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1. |
THE SPORES OFHISTOPLASMA |
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Canadian Journal of Research,
Volume 26e,
Issue 5,
1948,
Page 265-273
Eleanor Silver Dowding,
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摘要:
Tuberculate spores distinguish the mold stage ofHistoplasmafrom that of related pathogenic fungi. The tuberculations are not thickenings of the spore wall. They are extensions of the spore contents through the wall openings. The whole or the tip of a tuberculation may become detached and act as a spore. The yeastlike pathogenic phase ofHistoplasmaoriginates either from the hyphae, from the small spores (conidia), or from the tuberculations of the large spores (chlamydospores).Histoplasmacan be recovered in culture from the lungs of white mice that have inhaled the spores. No chlamydospores have been discovered in sections of their lungs. Nevertheless, in districts of high histoplasmin sensitivity, when lungs with nodules are examined in routine autopsies, the finding of any spherical body with external spores might well suggest an arrested histoplasmosis.
ISSN:1923-4287
DOI:10.1139/cjr48e-014
出版商:NRC Research Press
年代:1948
数据来源: NRC
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2. |
FAT ABSORPTION AND LUNG OIL |
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Canadian Journal of Research,
Volume 26e,
Issue 5,
1948,
Page 274-282
C. B. Weld,
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PDF (617KB)
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摘要:
The lungs of normal animals and of normal animals fed with oil have been examined for the presence of oil. Frozen sections stained with Sudan IV and haematoxylin reveal Sudan stained intracellular granules and interstitial or intravascular oil globules in alveolar walls. In general these oil globules are larger and more numerous in the oil fed animals than in the normal controls. In the lungs of a considerable number of the animals absorbing fat, patchy areas of oil are found that resemble pulmonary fat embolism. Evidence is presented to show that the finding is neither a histological artefact, nor is it due to oil aspiration. Lung fat determinations give values higher in lungs showing marked oil deposits, but as a rule they remain within the normal range.
ISSN:1923-4287
DOI:10.1139/cjr48e-015
出版商:NRC Research Press
年代:1948
数据来源: NRC
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3. |
THE EFFECT OF BARBITURATES AND OTHER SUBSTANCES ON MOTION SICKNESS IN DOGS |
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Canadian Journal of Research,
Volume 26e,
Issue 5,
1948,
Page 283-294
R. L. Noble,
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PDF (508KB)
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摘要:
A large series of barbiturates and other substances have been tested for their ability to prevent motion sickness in dogs. Many compounds were found to possess this activity, which was not related to the anesthetic property of the compound. A number of barbiturates were found to be considerably more active than V-12, which was used as a standard. Pyridoxine, hyoscine, and streptomycin were inactive in the tests described. Bulbocapnine possessed half the potency of V-12 and showed an additive effect when the two substances were given together.
ISSN:1923-4287
DOI:10.1139/cjr48e-016
出版商:NRC Research Press
年代:1948
数据来源: NRC
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