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Volume 88, Issue 1
Displaying 1-7 of 7 articles from this issue
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JUNICHI KAMBAYASHI1985 Volume 88 Issue 1 Pages 1-12
Published: January 20, 1985
Released on J-STAGE: March 19, 2008
JOURNAL FREE ACCESSWe studied on the effect of vascular perfusion of anterior inferior cerebellar artery with synthetic blood containing no metabolic substrate upon cochlear potentials of guinea pig.
During perfusion of glucose-free blood, the endolymphatic potential (EP) and the cochlear microphonics (CM) were maintained for 86±20(S.D.) minutes. Subsequently, the EP and the CM declined slowly and reached a temporal steady-state level of 30mV about 60 minutes after the onset of decline.
Strial glycogen seemed to play no role in this prolonged maintenance of the potentials, because significant breakdown of strial glycogen did not occure until the potentials started to decline. It appeared that the prolonged initial maintenance of the potentials during perfusion of glucose-free blood was due to the utilization of glucose from perilymph, since the EP started to decline immediately when the perilymphatic glucose pool was removed simultaneously by perilymphatic perfusion.
In addition, the minimal concentration at which glucose, lactate, succinate and pyruvate could sustain the potentials were determined. Consequently we found that the EP and the CM were supported by 0.8mM glucose, 11mM lactate and 11mM pyruvate but not by succinate.View full abstractDownload PDF (917K) -
KEIJI MORITA1985 Volume 88 Issue 1 Pages 13-19
Published: January 20, 1985
Released on J-STAGE: March 19, 2008
JOURNAL FREE ACCESSHistological localization of the elements, especially of Si, in the chronic inflammatory maxillary sinus mucosa, which was taken surgically from the patient of chronic sinusitis, was studied. Elementary analysis of the mucosa, which was frozen, dried and coated with C, was done using an energy dispersive X-ray microanalyzer (Kevex 7000D) fitted with a scanning electron microscope (S-550).
Silicon was found to be localized on the fiber, especially on the collagenous fiber, of the subepithelial connective tissue layer, while it was found neither in the epithelial cell layer nor in the infiltrative cells and matrix of the subepithelial connective tissue.
These findings have clarified that the higher concentration of Si in the sinusitis mucosa of fibrous type than in the mucosa of edematous type was resulted from Si located in the collagenous fibers of the mucosa. Si was considered to play an important role in construction and proliferation of pathological collagenous fibers in the chronic inflammatory mucous membrane.View full abstractDownload PDF (3542K) -
MITSURU FURUKAWA, TAKASHI KOMORI, HIDEYO ISHIGURO, RYOZO UMEDA1985 Volume 88 Issue 1 Pages 20-24
Published: January 20, 1985
Released on J-STAGE: March 19, 2008
JOURNAL FREE ACCESSSerological and molecular biological studies have shown an association between Epstein-Barr virus (EBV) and nasopharyngeal carcinoma. Although it has been shown that the epithelioid tumor cells carry EBV genomes, they are apparently devoid of receptors for EBV. In order to clarify the mechanisms of transfer of EBV genomes to epithelioid tumor cells, we performed the mixculture between human lymphoid cells carrying EBV (P3HR-1) and non-lymphoid cells (2-27 Ad).
Transmission of Epstein-Barr virus antigens was demonstrated from P3HR-1 cells to 2-27 Ad cells accompanied with polykaryocytes formation, which was specifically inhibited by human anti-EBV sera, indicating that EBV has cell membrane fusion activity.View full abstractDownload PDF (1023K) -
MIYAKO NAKAMURA, TOSHITAKA IINUMA, ISAO WATANABE, YAYOI SHIMIZU1985 Volume 88 Issue 1 Pages 25-29
Published: January 20, 1985
Released on J-STAGE: March 19, 2008
JOURNAL FREE ACCESSRadiographic anatomy of zygomatic bone was investigated using dry skulls with lead labels upon the suture lines surrounding the zygomatic bone. Serial radiographs were taken in postero-anterior projections, altering the central X-ray beam in each 10 degrees. The anthropological base line was used as a reference, and the angulation of the central X-ray beam covered from +10 degrees to - 40 degrees. These serial radiographs were analysed concerning such factors as the deformity of image of zygomatic bone and the superimposition of the petrous bone.
An angulation of -40 degrees corresponds to waters' view witch turned out to be the most appropriate projection to review the zygomatic bone as a whole, including the body and the arch. An angulation of -10 degrees corresponds to Caldwell's view which turned out to be the most appropriate projection to evaluate the fronto-zygomatic suture with its proximity. A contralateral oblique view (Rhese view) is of use to evaluate the lateral wall and the margin of the orbit. In order to evaluate the fracture of the zygoma, a combination of waters' and Caldwell's views are recommended as the optimal approach in conventional radiological evaluation.View full abstractDownload PDF (1659K) -
CORRELATION OF OSSICULAR ANOMALIES WITH ANOMALIES OF AURICLE JAW AND FACEKOHZOH KUMAKAWA, SOTARO FUNASAKA1985 Volume 88 Issue 1 Pages 30-36
Published: January 20, 1985
Released on J-STAGE: March 19, 2008
JOURNAL FREE ACCESSIt has been reported by many investigators that there is a correlation between the degree of the ossicular malformation and the auricular deformity in cases with the atresia or the narrow external meatus. This correlation, however, has not established in the middle ear malformation with the normal external meatus. The purpose of this paper is to study this correlation. The subjects are 60 ears (49 patients) of the middle ear malformation with the normal external meatus. Their occicular findings are confirmed operatively. Ossicular anomalies were classified into two groups according to the retrospectively estimated numbers of the maldeveloped foci. One is monofocal type with only one maldeveloped process, and the other is multifocal type with more than two maldeveloped processes.
As the result, the monofocal type was more frequently observed than the multifocal type in cases with the normal auricule, the jaw and the face or in unilaterally affected cases. In contrast, the multifocal type was more frequently observed in cases with some anomalies of the auricle, the jaw and the face or in bilaterally affected cases. This difference has been proved to be significant by the Chi-square test.
It is concluded that checking of the items above mentioned is important in middle ear malformations with the normal external meatus, because the multifocal type is more frequently observed in cases with some anomalies of the auricle, the jaw and the face or in bilaterally affected cases, and because surgical correction is also more difficult in these multifocal type anomalies.View full abstractDownload PDF (553K) -
HAJIME MAEDA, SATOSHI OGINO, TORU MATSUNAGA1985 Volume 88 Issue 1 Pages 37-40
Published: January 20, 1985
Released on J-STAGE: March 19, 2008
JOURNAL FREE ACCESSIn allergic patients, a decreased β-adrenergic responsiveness are thought to cause excessive release of mediators. Therefore, the present study was undertaken to evaluate possible β-adrenoceptor alterations in nasal allergy. β-Adrenoceptors in lymphocytes of 15 nasal allergy subjects and 15 non-allergy healthy subjects were measured using radioligand 3H-dihydroalprenolol (DHA) binding techniques.
The results were as follows.
1. The amount of β-adrenoceptors in lymphocytes of nasal allergy subjects was similar to the amount of β-receptors in non-allergy subjects. There was also no difEerence in lymphocyte β-adrenoceptors between house-dust allergy patients and Japanese cedar allergy patients.
2. The amount of β-adrenoceptors in patients with nasal allergic symptoms were significantly smaller than patients without symptom (p<0.01).
3. The amount of β-adrenoceptors in patients without any medication was small, but not significant compared with patients who were treated with the desensitization by allergens or with γ-globulin plus histamine.
4. The amount of β-adrenoceptors in patients who had eosinophilia (more than 6% of total leucocytes) was significantly smaller than in patients who had no eosinophilia (p<0.01).
The results suggest that β-adrenergic hyporesponsiveness in nasal allergy follows allergic reaction, and that the hyporesponsiveness is not the predispodition to nasal allergy.View full abstractDownload PDF (284K) -
SHINYA SOHMA, EIJI AZUMA, KOHJI ASAKURA1985 Volume 88 Issue 1 Pages 41-47
Published: January 20, 1985
Released on J-STAGE: March 19, 2008
JOURNAL FREE ACCESSA case of ganglioneuroma of the parapharyngeal space in a 57 year-old male was reported. The patient showed palsies of the IX, X and XII nerves as well as the Horner syndrome. The tumor was within the jugular foramen. It was completely removed using a cervical approach without angle mandibulotomy, but the palsies of the IX, X and XII nerves and the Horner syndrome continued. A histopathological examination revealed ganglioneuroma. The patient was the fifth such case reported in Japan.View full abstractDownload PDF (2543K)
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