Papers - KITAMURA Kazuo
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Development of an ultrasensitive enzyme immunoassay for human proadrenomedullin N-terminal 20 peptide and direct measurement of two molecular forms of PAMP in plasma from healthy subjects and patients with cardiovascular disease Reviewed
橋田 誠一,北村 和雄,長友 美達,柴田 剛徳,今村 卓郎,山田 和弘,藤元 昭一,加藤 丈司,森下 和広,江藤 胤尚
Clin Biochem 37 ( 1 ) 14 - 21 2004.1
Language：English Publishing type：Research paper (scientific journal)
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病態と疾患からみたアドレノメデュリン 心不全 Reviewed
加藤丈司、北村和雄、江藤胤尚
日本臨牀 62 ( 9 ) 269 - 272 2004
Publishing type：Research paper (scientific journal)
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腫瘍壊死因子(TNF)-αはヒト冠動脈平滑筋細胞のアドレノメデュリン(AM)受容体をdown regulationする Reviewed
名越康子、桑迫健二、曹袁寧、北村和雄、今村卓郎、江藤胤尚
日本内分泌学会雑誌 80 ( 2 ) 492 - 492 2004
Publishing type：Research paper (scientific journal)
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ヒト冠動脈の培養内皮および平骨筋細胞に発現している動脈硬化促進因子とアドレノメデュリンに対するC反応性蛋白の効果 Reviewed
名越康子、桑迫健二、曹袁寧、北村和雄、今村卓郎、江藤胤尚
臨床高血圧 10 ( 2 ) 136 - 137 2004
Publishing type：Research paper (scientific journal)
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アドレノメデュリンと関連ペプチドの基礎研究と臨床応用の可能性 Reviewed
北村和雄、江藤胤尚
日本内分泌学会雑誌 80 ( 1 ) 38 - 38 2004
Publishing type：Research paper (scientific journal)
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治療抵抗性高血圧に低用量スピロノラクトンが有用である Reviewed
北村和雄
臨床高血圧 10 ( 2 ) 132 - 133 2004
Publishing type：Research paper (scientific journal)
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血中DRPは高血圧発症のリスクと関係がある Reviewed
北村和雄
臨床高血圧 10 ( 2 ) 134 - 135 2004
Publishing type：Research paper (scientific journal)
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ほ乳類に存在する新たなアドレノメデュリン：強力な心血管・腎の調節因子 Reviewed
北村和雄
臨床高血圧 10 ( 2 ) 130 - 131 2004
Publishing type：Research paper (scientific journal)
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基礎研究の進展 アドレノメデュリンとPAMPの測定法 Reviewed
北村和雄
日本臨牀 62 ( 9 ) 216 - 219219 2004
Publishing type：Research paper (scientific journal)
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基礎研究の進展 PAMP : アドレノメデュリン前駆体より生合成される新しい降圧ペプチド Reviewed
北村和雄
日本臨牀 62 ( 9 ) 203 - 206206 2004
Publishing type：Research paper (scientific journal)
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基礎研究の進展 アドレノメデュリンの構造, 遺伝子, 生合成 Reviewed
北村和雄
日本臨牀 62 ( 9 ) 184 - 188 2004
Publishing type：Research paper (scientific journal)
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高血圧性臓器障害に関する基礎研究 アドレノメデュリン Reviewed
北村和雄、江藤胤尚
日本臨牀 62 ( 3 ) 239 - 242 2004
Publishing type：Research paper (scientific journal)
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アドレノメデュリンは線維芽細胞の活性化とTransforming Growth Factor-β1の発現を抑制することにより冠動脈マトリックスリモデリングを抑制する Reviewed
鶴田敏博、畠山金太、増山浩幸、加藤丈司、今村卓郎、北村和雄、浅田裕士郎、江藤胤尚
日本内分泌学会雑誌 80 ( 2 ) 493 - 493 2004
Publishing type：Research paper (scientific journal)
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特論 アドレノメデュリンの心筋梗塞後リモデリングへの臨床応用 Reviewed
中村亮斉、加藤丈司、北村和雄、今村卓郎、江藤胤尚
日本臨牀 62 ( 9 ) 302 - 306 2004
Publishing type：Research paper (scientific journal)
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Human Adrenomedullin(hAM)およびHuman Proadrenomedullin N-termimal 20 peptide(hPAMP)の超高感度測定法の関発と臨床応用 Reviewed
橋田誠一、北村和雄、森下和広、江藤胤尚、
日本内分泌学会雑誌 80 ( 1 ) 197 - 197 2004
Publishing type：Research paper (scientific journal)
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アドレノメデュリンの臨床的意義と新たな研究展開 Reviewed
加藤丈司、北村和雄、江藤胤尚
日本内分泌学会雑誌 80 ( 1 ) 72 - 72 2004
Publishing type：Research paper (scientific journal)
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Increased plasma and joint tissue adrenomedullin concentrations in patients with rheumatoid arthritis compared to those with osteoarthritis Reviewed
Chosa Etsuo,Hamada Hiroaki,北村 和雄,江藤 胤尚,Tajima Naoya
J Rheumatol 30 2553 - 2556 2003.12
Language：English Publishing type：Research paper (scientific journal)
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KITA Toshihiro, KITAMURA Kazuo, HASHIDA Seiichi, MORISHITA Kazuhiro, ETO Tanenao
Hypertension Research 26 ( 11 ) 887 - 893 2003.11
Language：English Publishing type：Research paper (scientific journal) Publisher：The Japanese Society of Hypertension
<B>Arterial stiffness as measured by pulse wave velocity (PWV) is a major predictor of cardiovascular disease. Adrenomedullin (AM), a hypotensive peptide, works as a compensatory factor for arterial sclerosis. The aim of this study was to investigate the relationship between PWV and the plasma concentration of AM in risk-loading patients. One hundred and twenty-six inpatients aged 30 to 75 years with or without varying degrees of atherosclerosis were investigated. Patients with heart and/or renal failure were excluded. The PWV was measured using an automatic waveform analyzer, and the plasma AM level was measured using a newly developed, hypersensitive immunoenzymometric assay system. The PWV increased with the increasing number of cardiovascular risk factors and organ damage in the patients. A positive correlation between the PWV and AM level was observed (<I>r</I> =0.375, <I>p</I> <0.0001, <I>n</I> =126). Seventy-four patients were receiving antihypertensive medications; medication did not affect the correlation. Multivariate regression analysis revealed that the PWV was significantly and independently associated with age, systolic blood pressure, and AM level. These results indicate that the plasma AM concentration could serve as a marker of advanced arterial sclerosis as estimated by increased PWV. (<I>Hypertens Res</I> 2003; 26: 887-893)</B>
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Cao Y.N., Kitamura K., Kato J., Kuwasako K., Ito K., Onitsuka H., Nagoshi Y., Uemura T., Kita T., Eto T.
Hypertension 42 ( 3 ) 369 - 372 2003.9
Publishing type：Research paper (scientific journal) Publisher：Hypertension
The vasodilator peptide adrenomedullin (AM) elicits diuresis and natriuresis and inhibits aldosterone secretion. The aim of this study was to better understand the role of AM in maintaining water and electrolyte balance during chronic salt loading. Male Wistar rats were divided into a high salt (HS) group that received a diet containing 8% sodium chloride (NaCl) and a normal salt group that received a diet containing 0.4% NaCl. Plasma AM concentrations as well as expression of AM mRNA in the adrenal gland and kidney were then measured after 3, 7, 14, and 28 days. After 28 days, sodium and water excretion were significantly higher in HS rats than in control, although blood pressure and fluid volume were not significantly affected. Moreover, although plasma AM remained unchanged for up to 14 days, it was increased 2.5-fold in HS rats after 28 days on a high salt diet, and there were corresponding 3-fold and 1.5-fold increases in the levels of AM mRNA in the adrenal gland and kidney, respectively. At the same time, expression of calcitonin receptor-like receptor mRNA was significantly upregulated in both kidney and adrenal gland, as was expression of receptor activity-modify protein 1 (RAMP1) and RAMP2 mRNA in the adrenals and expression of RAMP3 in kidneys. Taken together, these results suggest that AM plays a role in the regulation of water and electrolyte balance in animals chronically ingesting high levels of salt.
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Angiotensin II modulates gene expression of adrenomedullin receptor components in rat cardiomyocytes Reviewed
Mishima K., Kato J., Kuwasako K., Imamura T., Kitamura K., Eto T.
Life Sciences 73 ( 13 ) 1629 - 1635 2003.8
Publishing type：Research paper (scientific journal) Publisher：Life Sciences
Both adrenomedullin (AM) and angiotensin II (Ang II) are locally-acting hormones in the cardiac ventricles. Previously we reported that AM inhibits Ang II-induced hypertrophy of cultured rat neonatal cardiomyocytes. In this study, we examined whether Ang II affects the gene expression of the AM receptor components of calcitonin-receptor-like receptor (CRLR) and receptor-activity-modifying protein (RAMP) in rat cardiomyocytes. The mRNA levels of RAMP1 and RAMP3 were significantly elevated following 24-h treatment with Ang II without a change of those of RAMP2 and CRLR. AM increased the intracellular cAMP level and the cAMP accumulation by AM was significantly amplified by the 24-h preincubation with Ang II. The effects of Ang II on RAMP1 and RAMP3 expression were abolished by an Ang II type 1 (AT1) receptor antagonist, but not by an AT2 receptor antagonist. Thus, Ang II modulates gene expression of the AM receptor components via AT1 receptor, suggesting alteration of AM actions by Ang II in cultured rat cardiomyocytes. © 2003 Elsevier Science Inc. All rights reserved.