DSpace Collection: Vol.50 (2004)
http://ir.fmu.ac.jp/dspace/handle/123456789/148
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Instructions to Contributors, Contents of Volume 50, Contents
http://ir.fmu.ac.jp/dspace/handle/123456789/161
Title: Instructions to Contributors, Contents of Volume 50, ContentsA case of annular pancreas in a male adult
http://ir.fmu.ac.jp/dspace/handle/123456789/160
Title: A case of annular pancreas in a male adult
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<br/>Authors: Miyazawa, Masatsugu; Muto, Atushi; Sato, Masayuki; Koyama, Kaori; Endo, Hisahito; Ashino, Yoshikazu
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<br/>Abstract: Annular pancreas is a rare congenital anomaly, which consists of a ring of pancreatic tissue partially or completely encircling the descending portion of the duodenum. We reported a case of symptomatic annular pancreas in a 40 year old man admitted to our hospital complaining of abdominal pain, nausea and vomiting without body weight loss in January 2000. The patient underwent laparoscopic cholecystectomy for acalculous cholecystitis in September 1996. Initially, he was diagnosed with duodenal stenosis due to a duodenal ulcer scar, but laboratory data showed no abnormalities. His symptoms did not improve with medication or endoscopic balloon dilatation. Duodenograpy revealed a narrow segment with a smooth mucosal surface in the 2nd portion of the duodenal loop in the duodenum, and a computed tomography (CT) scan demonstrated a thickened pancreas head around this narrow segment. We were therefore able to diagnose annular pancreas. A duodeno-duodenostomy was performed in March 2000. The patient's postoperative course was uneventful, and he was discharged from our hospital on the 19th postoperative day. Although define diagnosis of annular pancreas is frequently made at laparotomy, the development of a recurrent imaging modality might assist in the preoperative diagnosis.Histological distribution and ultrastructural features of immunoreactive terminals against RT97, a monoclonal antibody to a 200 kD neurofilament, in the spinal dorsal horn of a rat
http://ir.fmu.ac.jp/dspace/handle/123456789/159
Title: Histological distribution and ultrastructural features of immunoreactive terminals against RT97, a monoclonal antibody to a 200 kD neurofilament, in the spinal dorsal horn of a rat
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<br/>Authors: Ishii, Maiko; Miyashita, Tomoko; Tsuchiya, Kaori; Ueda, Kouki; Umemura, Akira; Honda, Takashi
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<br/>Abstract: Localization and ultrastructural features of immunoreactive fibers and terminals against RT-97, a mouse monoclonal antibody that recognizes subunit of a 200-kD neurofilament, were examined in the spinal dorsal horn of adult rats. Under a light-microscope, many RT-97 immunoreactive fibers were detected in the dorsal root, collaterals of the dorsal root in the dorsal funiculus, and laminae III and IV in the dorsal horn. Few immunoreactive fibers were found in laminae I and II. Electron microscopic observation demonstrated that almost all RT-97 immunoreactive fibers in the dorsal root were myelinated, and unmyelinated fibers immunonegative. The immunoreactive fibers entered into the dorsal horn passing through the collaterals of the dorsal root along the superficial gray lamina. In the dorsal horn, these fibers ascended into and then terminated in lamina II. RT-97 immunoreactive central terminals were semicircular or ellipsoid in appearance and contained many flat-type presynaptic vesicles. Some terminals made synaptic contact with dendritic profiles in lamina II. Our present results indicate that RT-97 is a useful marker for ultrastructural examination of terminals served by non-nociceptive A-fibers.A comparative study on contractile responses of rabbit and guinea pig vasa deferentia to electrical field stimulation
http://ir.fmu.ac.jp/dspace/handle/123456789/158
Title: A comparative study on contractile responses of rabbit and guinea pig vasa deferentia to electrical field stimulation
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<br/>Authors: Nakanishi, Hironori; Ohkubo, Satoko; Ono, Tomoyuki; Matsuoka, Isao; Nakahata, Norimichi
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<br/>Abstract: Contractile responses of rabbit and guinea pig vasa deferentia to electrical field stimulation (EFS) are compared. A muscarinic receptor blocking agent, 1 microM atropine markedly reduced phasic and tonic contraction induced by EFS (20 Hz, 0.5 msec, 30 V, for 30 sec) in rabbit vas deferens, while it only slightly depressed those in guinea pig vas deferens. Further addition of an adrenergic alpha1 receptor blocking agent, 1 microM prazosin markedly depressed the second tonic contraction in both rabbit and guinea pig vasa deferentia. In the presence of atropine and prazosin, further addition of a P2X purinoceptor desensitizing agent, 10 microM alpha,beta-methylene ATP (alpha, beta-MeATP) abolished the residual phasic contractile response in guinea pig vas deferens, while it partially depressed that in rabbit vas deferens. The administration of 10 microM alpha,beta-MeATP in the absence of atropine and prazosin markedly potentiated the phasic contractile response of rabbit vas deferens to EFS, while it depressed that of guinea pig vas deferens. Contractile response of rabbit vas deferens to alpha,beta-MeATP was more potent than those of ATP and 2-methyl-thioATP (2-Me-thioATP), while these nucleotides had almost same potency in guinea pig vas deferens. These findings may indicate that contribution of cholinergic, adrenergic and purinergic neurotransmission to the contractile response of rabbit vas deferens to EFS is different from that of guinea pig vas deferens.