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  • 1
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 65 (2000), S. 0 
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: The efficiency of L-cysteine (cysteine) and sodium sulfite as antioxidants was examined in the browning of an aqueous solution of 100 mM dehydroascorbic acid (DHA). The browning was suppressed at 100 mM cysteine and at 40 mM and higher concentrations of sodium sulfite, but it increased in the presence of 10 mM of those agents. These agents did not allow the reduction of DHA to L-ascorbic acid (AA). These results suggest that the suppression or acceleration of browning is likely to be related to some degraded intermediates of DHA. The two colorless intermediates, which during DHA breakdown eventually transform into browning pigments, were discussed with regard to the browning regulation mechanism.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1434-0879
    Keywords: Key words Heat shock protein ; αB Crystallin ; HSP27 ; Renal cell carcinomas ; Testicular tumors
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Concentrations of two small stress proteins, αB crystallin and the 27-kDa heat shock protein (HSP27) were quantitated in tissues of the human normal genitourinary system and their tumors. Levels of HSP27 in renal cell carcinomas (mean ± SE: 1450 ± 262 ng/mg protein, n = 15) were significantly higher than in normal kidney (the cortex: 540 ± 99 ng/mg protein, n = 13; the medulla: 600 ± 106 ng/mg protein, n = 13) while those of αB crystallin tended to be increased without statistical significance. These findings were similar to those previously reported for renal cell tumors chemically induced in rats. Concentrations of αB crystallin in prostatic carcinoma tissues (410 ± 129 ng/mg protein, n = 10) were also significantly higher than in benign prostatic hyperplasia (54 ± 12 ng/mg protein, n = 14), whereas αB crystallin levels in testicular tumors including seminomas (2.1 ± 0.8 ng/mg protein, n = 11) and non-seminomas (5.2 ± 2.3 ng/mg protein, n = 9) were significantly lower than in normal testicular tissues (29.7 ± 6.2 ng/mg protein, n = 5). Both αB crystallin and HSP27 could be immunohistochemically localized in the normal kidney and renal cell carcinoma tissues.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    European archives of oto-rhino-laryngology and head & neck 257 (2000), S. 490-492 
    ISSN: 1434-4726
    Keywords: Key words Otolith ; Vestibule ; Vestibular evoked ¶potential ; Gravity
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Vestibular evoked myogenic potentials (VEMP) occurring after click stimulation in cervical muscles are thought to be a polysynaptic response of otolith-vestibular nerve origin. In optokinetic after-nystagmus (OKAN) the direction of after-nystagmus changes and slow-phase velocity decreases with head tilt. This phenomenon may be an otolith response to the direction of gravity. We assumed that intense clicks might have some influence on OKAN via the otolith-vestibular nerve. Twelve normal subjects who showed VEMP at 75 dB normal hearing level (nHL) clicks were examined. The OKAN was recorded under four conditions: right monaural, left monaural and binaural stimulation by 75 dB nHL clicks, and absence of click stimulation. Horizontal optokinetic stimulation was applied using stepwise increasing speeds from 30 deg/s to 90 deg/s. Two seconds before the stimulus ended, clicks were sounded. The slow-phase velocity of the recorded electro-nystagmography was manually measured. There was no effect on OKAN with unilateral stimulation but binaural stimulation suppressed it. These results suggest that a velocity storage integrator is influenced by intense clicks via the otolithic area.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    European archives of oto-rhino-laryngology and head & neck 251 (1994), S. 113-116 
    ISSN: 1434-4726
    Keywords: Acute otitis media ; Middle ear effusion Children ; Tympanometry
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Using tympanometry we investigated potential changes in both middle ears developing during and after unilateral acute otitis media (AOM) in Japanese children. In 144 children with unilateral AOM, tympanometry was performed at presentation and was repeated at the 1st, 2nd, 3rd, and 4th weeks and then every 2 weeks up to 12 weeks after entry into the study. Type B tympanograms were recorded in 81 (56%) of the affected ears and in 37 (26%) of the unaffected ears at presentation. Twelve weeks after AOM, the type B tympanogram was still observed in 21 (15%) of the affected ears and in 16 (11%) of the unaffected ears. Ears with type B changes at presentation showed a significantly slower recovery of middle ear ventilation than did those with either type A or type C1.
    Type of Medium: Electronic Resource
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