1994 Fiscal Year Final Research Report Summary
Study of leukocyte function in urinary tract infection
| Project/Area Number |
04670958
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| Research Category |
Grant-in-Aid for General Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Research Field |
Urology
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| Research Institution | Gifu University |
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Principal Investigator |
KAWADA Yukimichi Gifu University, School of Medicine, Professor, 医学部, 教授 (00021428)
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| Co-Investigator(Kenkyū-buntansha) |
ISHIHARA Satoshi Gifu University, School of Medicine, Research Associate, 医学部・附属病院, 助手 (00193342)
KIRIYAMA Manabu Gifu University, School of Medicine, Assistant Professor, 医学部・附属病院, 講師 (30021439)
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| Project Period (FY) |
1992 – 1994
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| Keywords | Neutrophile function / Superoxisude / Urinary tract infection |
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| Research Abstract |
1) Using urea and NaCl, the effects of blood neutriphiles to superoxiside production in various osmolarities were studied. Under 600 m0sm/kg and <5 mg/ml of urea concentration, the superoxiside production increased. Therefore, both osmolarity and urea concentration must be controlled for the effect.
2) The effects of superoxiside production of new-quinolones were observed in both blood and urinary neutrophiles. These antimicrobial agents inhibited the blocking activity of the osmolarities.
3) Superoxide production of blood netrophiles increased by treatment of G-CSF with its dose dependency. This effect was not observed in using urinary neutrophiles. This function observed in blood neutrophiles was well preserved in higher osmolarity atomosphier if previouly treated by the G-CSF.Therefore, urinary leukocyte activated and migrated from blood may still have the its function.
4) The superoxide production in the patients with neurogenic bladder dysfunction was studied in terms of the presence of infection or indwelling catheter. The groups of apparent infection and the catheter showed strong superoxide production, suggesting the occurrence of urinary tract infection may be following to the condition of decreased self-defense mechanism. Moreover, chronic stage of infectin such as chronic pyelonephritis cases fond lower production suggest to decrease the leukocyte function.
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Research Products
(2 results)
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[Publications] Masayasu Ito, Manabu Kuriyama, Yoshihito Ban, Yukimichi Kawada, Ken-ichi Kawano, Masayuki Niwa, Masakatsu Nozaki, Kaito Tsurumi, Masayoshi Yamaha, Koichi Tamura: "The effect of G-CSF to urinary molymorpher neutrophiles." The Japanese Journal of Urology (The 80th Annual Congress of Jpn.Urol.Assoc. April/1992, Tokyo). 84 (1). 124 (1993)
Description
「研究成果報告書概要(欧文)」より
