Сторінка 1 від 70 результати
The round window membrane (RWM) permeability to human serum albumin (HSA) was investigated in both normal chinchillas and chinchillas sensitized with HSA. The effect of a corticosteroid agent (triamcinolone) on the RWM permeability was also analyzed. It was found that HSA could not be detected in
A study of the permeability of the middle ear-inner ear interface for macromolecules was carried out in chinchillas with open and obstructed eustachian tubes utilizing tritiated human serum albumin and immunoelectrophoresis. Tritiated albumin was placed in the round window niche area or normal
OBJECTIVE
To characterize the groups of middle ear effusions (MEE) defined on the basis of the ratio of albumin and immunoglobulin G concentrations (A/G) in the effusion and to identify the correlation between these groups of MEE and the clinical features of otitis media with effusion
Antibodies against C-polysaccharide (C-Ps), a common cell wall component of all pneumococci, may be of importance for the elimination of decaying pneumococci. By means of ELISA with phenylated C-Ps, anti-C-Ps IgG was measured in samples of plasma and upper airway secretions from otitis-prone
This study was conducted in order to test the usefulness of measuring the concentrations of selected serum proteins and acute phase reactants in assessing the nutritional status of children with undue susceptibility to acute infections. The concentrations of serum proteins were determined by an
OBJECTIVE
Allergy is considered as one of important etiologic factor of otitis media with effusion (OME). In present study, we evaluated the causal effect of allergy on OME in an animal model, and investigated the secondary effect of bacterial infection.
METHODS
Allergy and control animals were
Secretory IgA (SIgA) and secretory IgM (SIgM), total IgA and total IgM were measured in plasma and nasopharyngeal secretions (NPS) from young children with different degrees of otitis proneness. Significantly higher levels of plasma IgM and lower levels of NPS-SIgM were found in children with
OBJECTIVE
Several studies have shown the presence of pepsin in the middle ear effusions of children with otitis media with effusion (OME). When gastric reflux is the cause, other noxious reflux products might be present. We therefore investigated the presence of bile acids in the middle ear
Two otomicroscopically well-defined types of otitis media (OM)--one culture-negative serous (SOM) and the other purulent (POM)--were induced in rats by mechanically obstructing the eustachian tube or by splitting the soft palate. Samples of middle ear effusions (MEE) produced and sera were
The aim of this prospective experimental animal study was to determine whether selenium had a protective effect on oxidative stress in rats with acute otitis media, by measuring the alterations of antioxidant parameters and lipid peroxidation on days 4 and 10 after inoculation into the middle ear.
Objective: The incidence of complications due to acute otitis media (AOM) in childhood has decreased significantly with the use of new antibiotics in recent years. However, acute mastoiditis (AM) is still the most common complication that
OBJECTIVE
Antioxidant enzymes status was investigated in children with acute otitis media (AOM) and acute tonsillitis. The aim was to determine the effect of oxidative damage due to free radicals on the antioxidant enzymes status in children with AOM and acute tonsillitis.
METHODS
We measured
The vascular permeability of the middle ear mucosa of chinchillas was examined by light and electron microscopy using horseradish peroxidase (HRP). Two kinds of experimental otitis media were used: serous otitis media (SOM) produced by eustachian tube obstruction and purulent otitis media (POM)
Unencapsulated Haemophilus influenzae is the second most common etiologic agent of otitis media in children. H. influenzae requires heme for aerobic growth in vitro and is able to utilize hemoglobin and complexes of heme-hemopexin, heme-albumin, and hemoglobin-haptoglobin and ferritransferrin as