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Volume 107, Issue 3
Displaying 1-5 of 5 articles from this issue
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Masayuki Ishida, Yukio Watanabe, Tadashi Kawasaki2004 Volume 107 Issue 3 Pages 179-187
Published: March 20, 2004
Released on J-STAGE: December 15, 2008
JOURNAL FREE ACCESSThis study reported on the horizontal optokinetic nystagmus (OKN) and vertical OKN of cats under the same conditions with quantitative parameters.
Using the search coil method, the horizontal and vertical OKN was investigated in 5 alert cats in an upright position. As the optokinetic stimulus, a stepped random dot pattern was used.
We recorded the quantitative parameters in both the horizontal and vertical OKN (for the direct pathway parameters, initial fast rise and fast fall: for the indirect pathway parameters, steady state slow phase velocity [SPV] and the optokinetic after-nystagmus [OKAN] area) in cats.
The SPV of the horizontal OKN increased with the stimulus amplitude up to 40∼60°/s but saturated thereafter (in some cats even more). Right and left OKN were almost symmetrical.
The SPV of the downward OKN increased with the stimulus amplitude up to 20°/s but saturated thereafter. This was lower than the horizontal OKN On the other hand, the SPV of the upward OKN was weak and irregular.
As for the OKAN. the right and left OKAN was also almost symmetrical. A downward OKAN was also observed but was weaker than the horizontal OKAN. A fast fall in the SPV of the OKAN was observed in the horizontal and downward OKN. On the other hand, there was little upward OKAN.
OKN in cats was composed of both a direct pathway and an indirect pathway. This study suggested that directional differences of OKN were mainly responsible for the indirect pathway. Both the direct and indirect pathways of cats were smaller than those of monkeys. This suggested that the differences in OKN between cats and monkeys were mainly responsible for the direct pathway.View full abstractDownload PDF (941K) -
Especially Serum Iron DeficiencyAtsushi Negoro, Masanori Umemoto, Tomomi Nin, Masafumi Sakagami, Megum ...2004 Volume 107 Issue 3 Pages 188-194
Published: March 20, 2004
Released on J-STAGE: December 15, 2008
JOURNAL FREE ACCESSSerum zinc deficiency is known to be a major cause of taste disturbances, but the effects of serum iron deficiency on taste disturbances are not widely known. In the present study, we clinically investigated the relationship between taste disturbances and serum iron deficiency as well as the results of pharmacological therapy.
The clinical and serological test results of 25 patients with serum iron deficiency (3 men and 22 women; mean age ±SD, 56.1±16.5 years) were reviewed at the Department of Otolaryngology, Hospital of Hyogo College of Medicine. All of the patients had been seen at the hospital between January 1999 and February 2003. Electrogustometry (EGM) and the filter paper disc method (FPD) were used to measure taste function. The patients were treated with iron and zinc supplements.
The age distribution of the patients peaked at the ages of 40 and 70 years. The ratio of males to females was 1:7. Based on the EGM results, 70% of the patients exhibited taste disturbances. The FPD results showed that the recognition threshold of sour tastes was slightly higher than that of the other tastes. No significant difference in the results of treatment was seen, regardless of the duration of the deficiency.
These results suggest that treatment with iron and zinc medicine is useful for correcting taste disturbances caused by serum deficiencies of trace elements.View full abstractDownload PDF (1215K) -
Hanako Saigusa, Yukiko Iino, Yoshinori Nakamoto, Tetsuo Miyazawa, Yosh ...2004 Volume 107 Issue 3 Pages 195-198
Published: March 20, 2004
Released on J-STAGE: December 15, 2008
JOURNAL FREE ACCESSWe herein report the histopathological findings of the temporal bone taken from a patient with unilateral profound deafness since early childhood. The patient was a 72-year-old male who died of lung cancer and extensive metastases including the tongue. The patient had a history of profound hearing loss in his left ear since childhood.
The histopathlogical finding of the left temporal bone revealed a severe atrophy of the organ of Corti, a detached and rolled-up tectorial membrane, a moderate loss of the stria vascularis, and a severe loss of spiral ganglion cells. In addition, the macula of the saccule was severely degenerated. The marked degeneration in the inner ear indicated a cochleosaccular disorder, which is a typical temporal bone finding in cases of viral labyrinthitis and hereditary hearing impairment The present patient was suspected to have suffered cochleosaccular degeneration as a result of an inner ear viral infection during childhood because the number of spiral ganglion cells was significantly reduced because of secon-
dary neural degeneration.View full abstractDownload PDF (1317K) -
Akio Hatanaka, Atsunobu Tsunoda, Hiromi Kanazawa, Reiko Tsunoda, Tatsu ...2004 Volume 107 Issue 3 Pages 199-202
Published: March 20, 2004
Released on J-STAGE: December 15, 2008
JOURNAL FREE ACCESSThree cases with infectious mononuculeosis associated with peritonsillar abscess were reviewed. The initial diagnoses in these three cases were tonsillitis or peritonsillitis. However, infectious mononucleosis was suspected because of an elevation in aminotransferases and was later confirmed by elevations in the titers of antibodies for EpsteinBarr virus. Peritonsillar abscesses developed and surgical drainage was peritormed in all three cases. The present study suggests a higher incidence of peritonsillar abscess in patients with infectious mononucleosis than previously expected.View full abstractDownload PDF (377K) -
[in Japanese]2004 Volume 107 Issue 3 Pages 203-207
Published: March 20, 2004
Released on J-STAGE: December 15, 2008
JOURNAL FREE ACCESSDownload PDF (425K)
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