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Volume 32 (1992)
- Issue 4 Pages 190-
- Issue 3 Pages 121-
- Issue 2Supplement Pag･･･
- Issue 2 Pages 55-
- Issue 1 Pages 1-
Volume 32, Issue 4
Displaying 1-7 of 7 articles from this issue
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Sadatoshi HAMAMOTO1992 Volume 32 Issue 4 Pages 190-205
Published: December 31, 1992
Released on J-STAGE: September 05, 2011
JOURNAL FREE ACCESSClusters of acinar cells were isolated by collagenase digestion of submandibular glands of female BALB/c mice (Isolated Acinar Cells; IAC), and cultured in either serum-supplemented or serum-free medium. The cells grown in the serum-free medium with low Ca2+ concentration were identified as ductal origin from their histochemical characteristics (Cultured Ductal Cells; CDC).
Kinetics of 36Cl- and 99mTcO4- uptake by IAC and CDC was studied by the measurement of the radioactivity. Furosemide and 4, 4-diisothiocyano-2, 2-stilbene disulfonic acid (DIDS) were used for inhibitors of a Na+/K+/Cl- cotransporter and a Cl-/HCO3- antiporter, respectively.
The following results were obtained:
1) In both IAC and CDC, 36Cl- uptake increased rapidly within 5min. and then reached a steady-state, while 99mTcO4- uptake showed a similar pattern to the initial phase of 36Cl- uptake but continued to increase slowly thereafter.
2) 36Cl- uptake in IAC was reduced to about 40% by furosemide or DIDS, and completely blocked by a simultaneous exposure to both inhibitors. In CDC, it was reduced to 18% and 27% by furosemide and DIDS respectively, and mostly blocked by a simultaneous exposure to both.
3) 99mTcO4- uptake in IAC was reduced to 42% and 69% by furosemide and DIDS respectively, and reduced to 26% by a simultaneous exposure to both inhibitors. In CDC, it was reduced to 7% and 70% by furosemide and DIDS respectively, and mostly blocked by a simultaneous exposure to both.
4) Efflux of 99mTcO4- from both IAC and CDC was increased by exposure to autonomic nervous agents.
It was concluded from these results that 99mTcO4- might accumulate in both IAC and CDC via a Na+/K+/Cl- cotransporter and a Cl-/HCO3- antiporter. Otherwise, it was suggested that additional mechanism might exist in acinar cells.View full abstractDownload PDF (7185K) -
Mizue IDA, Takehito SASAKI, Shigetoshi YOKOYA, Teruo AMAGASA, Akira MO ...1992 Volume 32 Issue 4 Pages 206-212
Published: December 31, 1992
Released on J-STAGE: September 05, 2011
JOURNAL FREE ACCESSWe experienced a patient with hemifacial microsomia who accompanied with a difficulty in the endotracheal intubation for general anaesthesia in the course of parotid tumor resection. The patient was found to have an anomalous hyoid and bilaterally-elongated styloid processes. The computed radiography was more effective than the conventional radiography for evaluating anatomical anomalies of the neck because it can image both of the soft and hard tissues of the neck. These anomalies were thought to be an expression of oculo-auriculo-vertebral spectrum including hemifacial microsomia, although they rarely have been noticed. The difficult intubation might be caused by the restricted mobility of the hyoid due to the anomalies.View full abstractDownload PDF (5068K) -
Takashi YOSUE, Masakazu KANEKO, Munehiro HAYASHI, Hideharu KUBOTA, Kei ...1992 Volume 32 Issue 4 Pages 213-222
Published: December 31, 1992
Released on J-STAGE: September 05, 2011
JOURNAL FREE ACCESSSix cases of so-called maxillary sinus mucous retention cysts are reported here, focusing mainly on X-ray CT and rotational panoramic examinations. The originating wall and the CT number of the lesions are studied.
The results are as follows:
1. Alternate positioning of the patient in the CT examination seemed to present valuable information on the origin and the contents.
2. The probability of occurence seemed to be more than previously reported because three mucous retention cysts were found during CT examination.
3. Mucous retention cysts seem to originate from all of the walls of the maxillary sinus except the upper with equal probability.
4. According to the CT number, the mean value seemed to be around 80. There seemed to be a tendency for small mucous retention cysts to have a rather large CT number.
It is also reconfirmed that the CT examination seems to be valuable for diagnosing the diseases occuring on the maxillary sinus.View full abstractDownload PDF (9872K) -
PART I. FREQUENCY, TECHNIQUE AND CHOICE OF EACH IMAGING METHODAkira TAKAHASHI, Hao-zong WU, Shumei MURAKAMI, Hideyoshi NISHIYAMA, Ma ...1992 Volume 32 Issue 4 Pages 223-236
Published: December 31, 1992
Released on J-STAGE: September 05, 2011
JOURNAL FREE ACCESSIn order to make a guideline for appropriate routine diagnostic imaging system for the temporomandibular joint, a questionnaire was sent to every 29 oral radiology section of dental college and university school of dentistry in Japan. Sixty radiologists from 22 oral radiology sections (76%) replied to the questionnaire.
This three-part article will describe a present status, significance, and a future for each imaging method and diagnostic imaging system based on the opinions of the responders.
In part I, we analyzed the present status of frequency, technique and choice of each imaging method.View full abstractDownload PDF (1773K) -
[in Japanese], [in Japanese], [in Japanese], [in Japanese]1992 Volume 32 Issue 4 Pages 237-242
Published: December 31, 1992
Released on J-STAGE: September 05, 2011
JOURNAL FREE ACCESSDownload PDF (6798K) -
[in Japanese], [in Japanese], [in Japanese]1992 Volume 32 Issue 4 Pages 244-245
Published: December 31, 1992
Released on J-STAGE: September 05, 2011
JOURNAL FREE ACCESSDownload PDF (2515K) -
1992 Volume 32 Issue 4 Pages 246-254
Published: December 31, 1992
Released on J-STAGE: September 05, 2011
JOURNAL FREE ACCESSDownload PDF (1334K)
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