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Volume 74 (1997 - 199･･･
- Issue 6 Pages 199-
- Issue 5 Pages 155-
- Issue 4 Pages 115-
- Issue 2-3 Pages 65-
- Issue 1 Pages 1-
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Volume 74, Issue 2-3
Displaying 1-6 of 6 articles from this issue
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Iwao SATO, Ryuji UENO, Masataka SUNOHARA, Toni SATO1997 Volume 74 Issue 2-3 Pages 65-73
Published: August 20, 1997
Released on J-STAGE: September 24, 2012
JOURNAL FREE ACCESSHuman skin has various distributions and arrangements of elastic fiber (EF). Previous reports did not dearly show the distribution of EF in the face skin because of various contents during aging. In this study, a color image analyzer indicated distribution of elastic, oxytalan, and muscle fibers in human face skin. During aging the muscle fiber size and the content of the EF decreased in the modiolus and inferior labial regions of the human skin, and the ratio of the EF was lower than that of oxytalan fiber in measured areas. That is, the dimension of oxytalan fiber may reflect the content of EF, and muscle has a role in the distribution of the EF in human face skin. In the deeper regions, small and large EF bundles were found near the sheath of gland and musdes. Therefore, face movement might be an important aspect to maintaining the EF content of human face skin.View full abstractDownload PDF (2482K) -
Mustafa F. SARGON, H. Hamdi CELIK, Mehmet ORHAN1997 Volume 74 Issue 2-3 Pages 75-79
Published: August 20, 1997
Released on J-STAGE: September 24, 2012
JOURNAL FREE ACCESSLens epithelia obtained from 37 patients who had undergone cataract surgery operation were examined by using transmission electron microscope. Their ages varied between 60-79 years and mean age was 70.2 years. Additionally, the lens epithelia of 14 patients, which were obtained in the same way were examined by using spurning electron microscope. Their ages varied between 58-78 years and mean age was 70.7 years. In transmission electron microscopy, the normal appearing epithelial cells were intermingled with abnormals and the abnormal cells increased in number and in degree of abnormality with aging. The three dimensional structure of the interdigitating interlocking processes of lens cuboidal cells were visualised by using scanning electron microscope.View full abstractDownload PDF (1948K) -
Michiya UTSUMI, Shoichi EMURA, Hideo ISONO, Shizuko SHOUMURA1997 Volume 74 Issue 2-3 Pages 81-91
Published: August 20, 1997
Released on J-STAGE: September 24, 2012
JOURNAL FREE ACCESSWe examined the effect of magnesium (Mg) on the fine structure of the golden hamster parathyroid gland in vivo and in vitro. In the in vivo study, the principal changes in the parathyroid glands 10 and 30 min, and 1 hr after Mg injection showed a significant decrease in the area of the Golgi apparatus and cisternae of the rough endoplasmic reticulum compared with those of the control animals. The serum calcium level in the experimental animals 30 min and 1 hr after the injection was significantly low compared with that of the control animals. In the in vitro study, the area of the Golgi apparatus in the Mg-treated group significantly decreased as compared with that of the control group. These changes suggest that Mg directly suppresses the synthesis of hamster parathyroid hormone in the short term.View full abstractDownload PDF (3485K) -
W. TANG, N. GOTO, J. TANAKA, N. OTSUKA1997 Volume 74 Issue 2-3 Pages 93-98
Published: August 20, 1997
Released on J-STAGE: September 24, 2012
JOURNAL FREE ACCESSThe aim of the present study is to analyse nerve fibres of the human small splanchnic nerve in relation to the ageing process. The analysis was conducted with the use of a new staining method that makes it possible to discriminate various structures of the nervous tissue. An image-ansdysing digitiser, a microscope with a drawing tube and a personal computer for storing data and performing statistical analyses were employed in this study. We examined 30 human small splandmic nerves which were taken from cadaver specimens (20 males and 10 females) aged from 44 to 96 years. Our report may provide a first information concerning the ageing process of the human small splanchnic nerve. The results indicate that a decrease in transverse area and perimeter of myelinated axons in one of the important changes occurring in the human small splanchnic nerve with the ageing process.View full abstractDownload PDF (2167K) -
Masato OHKUBO, Akira IIMURA1997 Volume 74 Issue 2-3 Pages 99-107
Published: August 20, 1997
Released on J-STAGE: September 24, 2012
JOURNAL FREE ACCESSWe had the opportunity to dissect an autopsy case who had developed a rare portal collateral pathway due to increased portal pressure resulting from liver cirrhosis and simultaneous abnormal left gastric venous distribution. The portal collateral pathway consisted of a well-developed communicating branch located between the left renal vein and the left gastric vein. The left gastric vein did not merge into the portal vein, but directly entered the liver after bifurcating near the hepatic hilum. One branch had an anastomosis to the left branch of portal vein in the liver and the other distributed in the hepatic quadrate lobe. We considered this aberrant left gastric vein to be a congenital residue of the embryological left portal vein. The present case is the third Japanese case to have been described minutely in the literature, following the two cases reported by Miyaki et al. (1987). Persistence of the umbilical vein and the absence of the celiac trunk were also observed.View full abstractDownload PDF (2713K) -
A. HIURA, F. NASU, M. KUWAHARA, H. ISHIZUKA1997 Volume 74 Issue 2-3 Pages 109-113
Published: August 20, 1997
Released on J-STAGE: September 24, 2012
JOURNAL FREE ACCESSFluoride-resistant acid phosphatase (FRAP)-reactive terminals making contact with interneuronal soma are found in the substantia gelatinosa of the mouse spinal dorsal horn. About one half of the interneuronal somata receive FRAP-positive boutons. By electron microscopy, these FRAP-positive terminals appear small, dark, slender, roundish, cap-like, ellipsoid or sinuous and electron-dense, scalloped (fan-like) contours with dear spherical synaptic vesicles of variable size, some large dense-core vesides and mitochondria. All these features are very similar to those of capsaicinsensitive terminals. Thus they are considered to be nodceptive primary afferent endings. Therefore, some of the FRAP-positive terminals are suggested to have a modulatory role in the nociceptive circuit in the substantia gelatinosa.View full abstractDownload PDF (1710K)
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