Results 161 to 170 of about 721 (209)

Cell-mediated immune responses (CMIR) to Rhinosporidium seeberi in mice

Mycopathologia, 2001
There is no published data on Cell Mediated Immune Responses in experimental animals to Rhinosporidium seeberi the causative agent of human and animal rhinosporidiosis. The quantitative mouse foot-pad model was used to assay the Delayed-Type Hypersensitivity (DTH) cell-mediated immune response to extracts of purified endospores and sporangia of R ...
S, Jayasekera, S N, Arseculeratne, D N, Atapattu, R, Kumarasiri, W M, Tilakaratne   +4 more
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Cultivation of Rhinosporidium seeberi in Vitro: Interaction with Epithelial Cells

Science, 1986
Rhinosporidium seeberi , a fungus that is associated with polyp-like tumors in animals and man, was successfully cultivated. This organism stimulated proliferation of epithelial cells in vitro, producing polyp-like structures.
M G, Levy, D J, Meuten, E B, Breitschwerdt   +2 more
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RHINOSPORIDIUM SEEBERI INFECTION IN THE EYE

Archives of Ophthalmology, 1941
Mycotic infections of the eye are more often recognized in recent years as knowledge of the various mycoses increases. As many ophthalmologists are unfamiliar with the clinical and pathologic features of a rather rare fungous disease of the mucous membranes of the eye, called rhinosporidiosis, and as the disease in the eye must be more prevalent than ...
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Rhinosporidium seeberi: Light, phase contrast, fluorescent and scanning electron microscopic study

Mycopathologia, 1991
Phase contrast microscopic study indicated the multilayered structure of the sporangial wall of R. seeberi while the scanning electronmicroscopic study revealed a trilaminated wall compared to a thick double walled light microscopic structure. The scanning electronmicroscopy revealed the spores of varying sizes which were found either discretely or in ...
J S, Moses, C, Balachandran, B, Singh, A, Shanmugan, D, Moses   +4 more
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Purification of the Endospores and Sporangia of Rhinosporidium Seeberi on Percoll Columns

Mycopathologia, 1999
Human rhinosporidial tissue was used as the source of the various developmental stages of Rhinosporidium seeberi--endospores with electron dense bodies, juvenile, and immature sporangia. After homogenisation in phosphate buffered saline (PBS) and removal of tissue fragments by centrifugation, the rhinosporidial bodies were isolated on centrifuged ...
D N, Atapattu, S N, Arseculeratne, R P, Rajapakse, N A, Perera, N B, Eriyagama   +4 more
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In vitro studies on the mechanisms of endospore release by Rhinosporidium seeberi

Mycopathologia, 1999
Studies of Rhinosporidium seeberi have demonstrated that this organism has a complex life cycle in infected tissues. Its in vivo life cycle is initiated with the release of endospores into a host's tissues from its spherical sporangia. However, little is known about the mechanisms of sporangium formation and endospore release since this pathogen is ...
L, Mendoza, R A, Herr, S N, Arseculeratne, L, Ajello   +3 more
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Rhinosporidium seeberi; a preliminary study of the morphology and life cycle

Medical Mycology, 1969
A preliminary attempt to study the structure of Rhinosporidium seeberi was made after culturing the organism in liquid medium. A comparison was made of the structure of the sporangium in culture and tissue.
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Presumptive synchronized nuclear divisions without cytokinesis in the Rhinosporidium seeberi parasitic life cycle

Microbiology, 2013
Despite numerous studies of the Rhinosporidum seeberi parasitic phase, the stages of its nuclear cycle leading to the formation of endoconidia have yet to be properly described. R. seeberi resists culture and can only be investigated on histological preparations.
Leonel, Mendoza, Raquel, Vilela
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RHINOSPORIDIUM SEEBERI: AN ETIOLOGIC AGENT IN THE PRODUCTION OF NASAL POLYPS

Archives of Otolaryngology - Head and Neck Surgery, 1938
The failure to recognize a disease is usually due to inexperience with it or to lack of knowledge of its existence. Intranasal polypoid inflammatory growths are so common and their association with non-specific types of chronic rhinitis is so generally accepted that usually they receive only routine attention and are rarely submitted for histologic ...
J. G. PASTERNACK, C. S. ALEXANDER
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Surface structures of the endospores ofRhinosporidium seeberi

Medical Mycology, 1974
Endospores of Rhinosporidium seeberi were extracted and their surface structures studied by replication. Most of the endospores observed had a typical polar depression. The surface pattern consisted of undulating folds alternating with depressions to give a cerebriform appearance. Occasionally a thin membrane was seen surrounding each endospore.
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