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  • Otitis media with effusion  (2)
  • 82.20  (1)
  • ACE polymorphism  (1)
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  • 1
    ISSN: 1432-0649
    Keywords: 82.20 ; 82.50
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The product branching ratio was studied in relation to the radical scrambling mechanism of laser isotope separation of uranium. A mixture of UF6/CH4/Ar was irradiated either using a low-intensity cw-UV source (high-pressure Hg lamp, 250 nm ∼ 400 nm) or using high-intensity pulsed UV lasers (4th-harmonic YAG laser at 266 nm or KrF laser at 248 nm) in a supersonic nozzle reactor. While the latter gave a higher C2H6/CH3F ratio in the photoproduct than the former, the C2H6/CH3F branching ratio was found to disagree with the results reported in a static cell experiment. This anomaly in the results obtained using a supersonic nozzle reactor was well represented by a model proposed in this study which assumed no mixing before a shock wave zone and sufficient mixing after it, leading to complete suppression of radical recombination.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1432-1076
    Keywords: Key wordsKawasaki disease  ;  Coronary aneurysm  ; ACE polymorphism
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract A 287 base pair insertion/deletion polymorphism in intron 16 of the angiotensin I converting enzyme (ACE) gene was examined by polymerase chain reaction in 36 Kawasaki disease patients (16 without coronary aneurysm, 20 with coronary aneurysm). A polymorphism in the ACE gene was characterized by three genotypes: two D alleles (genotype DD), two I alleles (genotype II), and heterozygous allele (genotype DI). Genotype II was found in 65% of the patients with aneurysm and 12.5% of those without aneurysm (P 〈 0.01, odds ratio 13.0, 95% confidence intervals). Conclusion Patients with Kawasaki disease and coronary aneurysm more often than expected had the genotype II suggesting that reactions induced by the type of ACE polymorphism predispose to coronary aneurysm formation.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    European archives of oto-rhino-laryngology and head & neck 247 (1990), S. 323-325 
    ISSN: 1434-4726
    Keywords: Otitis media with effusion ; Ciliary beat frequency
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary In an attempt to clarify the effect of middle ear effusions (MEEs) on ciliary activity, the ciliary beat frequency (CBF) of nasal epithelium from normal subjects was determined following incubation in Hanks' solution containing effusions from pediatric otitis media with effusion. Both serous and mucoid types of effusions increased CBF 15 min after incubation. The mucoid type of effusion was then found to decrease CBF 6 h after incubation. Since the pH and osmotic pressure of the solution containing the effusions were within the physiological ranges for normal ciliary beating, our findings show that MEEs can influence CBF in vitro.
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 1434-4726
    Keywords: Viscosity ; Elasticity ; Otitis media with effusion ; Mucociliary transport
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The viscosity and the elasticity were measured in 146 individual middle ear effusions (MEEs) from 93 children with otitis media with effusion (OME). The effusions were classified into serous or mucoid type by their macroscopic appearance. The distribution of elasticity showed two peaks, corresponding to the peaks of serous and mucoid types of effusions. There were a small number of effusions in the intermediate range of elasticity, where the effusions were most effectively transported by the cilia. These findings suggests that the MEEs of pediatric OME are accumulations of rheologically suboptimal fluid in the middle ear cavity.
    Type of Medium: Electronic Resource
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