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Volume 84 (2007)
- Issue 4 Pages 121-
- Issue 3 Pages 83-
- Issue 2 Pages 43-
- Issue 1 Pages 1-
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Volume 84, Issue 1
Displaying 1-5 of 5 articles from this issue
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Kazutoshi FUSUMADA, Toshifumi YOKOYAMA, Takanori MIKI, Zhi-Yu WANG, We ...2007 Volume 84 Issue 1 Pages 1-10
Published: 2007
Released on J-STAGE: October 23, 2007
JOURNAL FREE ACCESSElectroacupuncture (EA) delivered to the acupoint (AP) called Zusanli (ST36) was administered on the bilateral hindlimb. This experiment resulted in strong expression of c-Fos immunoreactivity in the ventrolateral to lateral subdivision throughout the periaqueductal gray (PAG) compared to the non-AP and sham cases. On the other hand, it was of particular interest in the experiment of the AP that strong expression of gamma aminobutylic acid (GABA) frequently showed similar pattern of distribution to that of c-Fos in the PAG. This overlapped pattern of distribution, demonstrated in the present study, suggests that the PAG neurons activated by EA at the AP might play an important role in the descending pain control system involving the GABA since the PAG has special reference to the dorsal horn of the spinal cord and function of pain control.View full abstractDownload PDF (768K) -
Yuji SHINYA, Kazuya HAMADA, P.D. GUPTA, Fumioki YASUZUMI2007 Volume 84 Issue 1 Pages 11-18
Published: 2007
Released on J-STAGE: October 23, 2007
JOURNAL FREE ACCESSPeriodic acid methenamine silver staining has been used for proof of the existence of carbohydrates in both paraffin and resin embedded tissues. The staining was applied to delineate macrophages that have been well known as cells of mononuclear phagocyte system by stainable nature for lysosomes, and it is found to be usefu1 method for detection of macrophage. Fetal macrophage, which is often observed in placental villi, is called the highly vacuolated cell. Vacuoles in the cytoplasm seem to be empty with light mieroscopic staining, but it is clarified that they contain a ful1 amount of carbohydrate. The present result leads us to the necessity of reconsidering the functional aspect of fetal macrophage.View full abstractDownload PDF (444K) -
Makoto MIZUTANI, Yoshiko NAKAE, Norikazu OHNO2007 Volume 84 Issue 1 Pages 19-24
Published: 2007
Released on J-STAGE: October 23, 2007
JOURNAL FREE ACCESSThe quantitative assessment of enzyme activities in situ in single muscle fibres is essential for understanding the functions of skeketal muscles. The function of the lateral pterygoid muscle (LPM) is not fully understood because it is a deeply located masticatory muscle and cannot be dissected in an intact configuration. Here we report how to measure the activities of mitochondrial succinate dehydrogenase (SDH) in single muscle fibres in situ in the LPM in sections of rat heads. Unfixed head sections were incubated on gel fiims containing SDH substrate and nitroblue tetrazolium. During incubation, images of the section due to deposition of the final reaction products, formazans, were captured at intervals of 10 s using a real-time image analysis system for absorbance measurements. We found that thebelly of the LPM consisted of four areas with different mean activities of SDH. The lateral and upper areas of the muscle showed siniilarly high SDH activities. Mean activity in the lower area was the lowest, about half of those of the lateral and upper areas. These results agree with the hypothesis that the superior head of the LPM participates in more continuous contraction and is more resistant to fatigue than the inferior head.View full abstractDownload PDF (258K) -
Fumioki YASUZUMI2007 Volume 84 Issue 1 Pages 25-34
Published: 2007
Released on J-STAGE: October 23, 2007
JOURNAL FREE ACCESSThe dynamic structures of the human ductuli efferentes, which connect between the rete testis and the ductulus epididymidis, are described in the present paper. Maturation of sperm takes place in the tubule and after this process the group of sperm is transferred to the ductus. All ductuli do not show the same histological contents. Each ductulus shows variety of different configuration depending on to the functional phase (the state of sperm maturation) of the tubule. The basic pattern of all the tubuli is the same, however, they differ in the thickness, cytoplasmic components of epithelial cells and luminal contents. Larger tubule has big lumen whereas smal1 is almost without a lumen. During the process, spherical and luminal macrophages act as nurse macrophage by using G1 granules obtained from the epithelial cell, and irregular shaped maerophage in the small tubule acts as scavenger macrophage. It has been shown that the epithelial cell of the large tubule show intense excretory activity and the secretory substance is different from other granules and lysosomes by periodic acid methenamine silver staining.View full abstractDownload PDF (830K) -
Naoki SHIRAISHI, George MATSUMURA2007 Volume 84 Issue 1 Pages 35-42
Published: 2007
Released on J-STAGE: October 23, 2007
JOURNAL FREE ACCESSDuring dissection practice held at Kyorin University School of Medicine in 2004, two anomalous muscles were observed on the Rt-forearm-flexor-side of an 83-year-old man. The results of this investigation are reported.
One accessory muscle originated from the tendinous insertion of the biceps brachii and medial epicondyle. After passing through the deep layer of the pronator teres, it became tendinous, passing towards the trapezium and second metacarpal base. Its two origins fused superficial to the ulnar artery distal to the cubital fossa, and it merged with the deep region of the pronator teres. More distally, the accessory muscle formed a belly before again becoming tendinous and bifurcated, one branch attaclmg to the trapezium and the other fusing with the belly of the second accessory muscle. These findings suggested that this accessory muscle was similar to Gantzer's muscle.
The other accessory muscle arose distal to the origin of the flexor pollicis longus and inserted onto the second metacarpal base. in addition, from the distal side of its origin, a smal1 muscle bundle was formed and became tendinous. It fused with the insertion tendon of the first accessory muscle to the trapezium. The second accessory muscle was thought to be deep radial carpal flexor.View full abstractDownload PDF (386K)
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