尿蛋白
WordNet
- of or relating to the urinary system of the body
- of or relating to the function or production or secretion of urine
- any of a large group of nitrogenous organic compounds that are essential constituents of living cells; consist of polymers of amino acids; essential in the diet of animals for growth and for repair of tissues; can be obtained from meat and eggs and milk and legumes; "a diet high in protein"
PrepTutorEJDIC
- 尿の;泌尿(ひにょう)[器]の
- 蛋白(たんばく)質
UpToDate Contents
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English Journal
- A sensitive and selective magnetic graphene composite-modified polycrystalline-silicon nanowire field-effect transistor for bladder cancer diagnosis.
- Chen HC1, Chen YT2, Tsai RY3, Chen MC4, Chen SL5, Xiao MC5, Chen CL6, Hua MY7.
- Biosensors & bioelectronics.Biosens Bioelectron.2015 Apr 15;66:198-207. doi: 10.1016/j.bios.2014.11.019. Epub 2014 Nov 18.
- In this study, we describe the urinary quantification of apolipoprotein A II protein (APOA2 protein), a biomarker for the diagnosis of bladder cancer, using an n-type polycrystalline silicon nanowire field-effect transistor (poly-SiNW-FET). The modification of poly-SiNW-FET by magnetic graphene with
- PMID 25460902
- Expression patterns of dishevelled-2 in different colon tissue segments in Hirschsprung's disease.
- Chen D1, Mi J1, Fu DH2, Wang WL1, Gao H1.
- Molecular medicine reports.Mol Med Rep.2015 Mar;11(3):2092-6. doi: 10.3892/mmr.2014.2932. Epub 2014 Nov 12.
- Hirschsprung's disease (HSCR) is a congenital disorder characterized by an absence of enteric ganglion cells in the terminal regions of the gut during development. To date, the cause of HSCR remains unclear, although the pathogenesis of this complex disease is hypothesized to be influenced by numero
- PMID 25395054
- Antitumor activity of adenoviral vector containing T42 and 4xT42 peptide gene through inducing apoptosis of tumor cells and suppressing angiogenesis.
- Zhang X1, Qi DD2, Zhang TT3, Chen QX4, Wang GZ5, Sui GY6, Hao XW7, Sun S7, Song X7, Chen YL7.
- Molecular medicine reports.Mol Med Rep.2015 Mar;11(3):2083-91. doi: 10.3892/mmr.2014.2910. Epub 2014 Nov 10.
- The T42 peptide, generated from two active fragments of tumstatin, has been shown to have anti‑tumor activity. The adenoviral vector is the most frequently used vector in research and clinical trials for gene therapy. In the present study, the anti‑tumor activity of the T42 peptide and quadrupl
- PMID 25384346
Japanese Journal
- 重症尿路感染症におけるDIC に対する遺伝子組み換えトロンボモジュリンの使用経験
- 文野 美希,栗本 勝弘,木下 修隆,加藤 廣海,有馬 公伸,杉村 芳樹
- 泌尿器科紀要 58(2), 71-74, 2012-02
- … Severe urinary tract infection occasionally causes urosepsis and disseminated intravascular coagulation (DIC). … We experienced six cases of DIC with severe urinary tract infection from July 2009 to January 2011. … In all cases, urinary tract infection was caused by pyelonephritis. … rTM bindsto thrombin to inactivate coagulation, and the thrombinrTM complex activatesprotein C to form activated protein C. …
- NAID 120003988250
- A Novel Diabetes Mellitus Mouse Model, MAFA-Deficient and Beta Cell-Specific MAFK-Overexpressing Hybrid Transgenic Mice, Developed Severe Diabetic Nephropathy and Improved with TCV-116 (Candesartan Cilexetil) Treatment
- FUJITA Akiko,YOH Keigyou,SHIMOHATA Homare,MORITO Naoki,OJIMA Masami,OKAMURA Midori,TAKAHASHI Satoru,YAMAGATA Kunihiro,楊 景堯,森戸 直記,高橋 智,山縣 邦弘
- Experimental animals 61(1), 49-57, 2012-01
- … However, in the treated group, urinary protein excretion, mesangial matrix expansion, enlargement of the kidney, and glomerular surface area were all improved relative to untreated mice. … The urinary level of 8-OHdG, an oxidative stress marker, at 20 weeks was lower in the TCV-116-treated group than in the untreated group. …
- NAID 120003874830
Related Links
- 5 Jan 2012 ... Describes how urine protein testing is used, when urine protein tests are ordered, and what the results of a urine protein test might mean.
- Major urinary proteins (Mups), also known as α2u-globulins, are a subfamily of proteins found in abundance in the urine and other secretions of many animals. Mups provide a small range of identifying information about the donor animal, ...
★リンクテーブル★
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- 英
- urine protein, urinary protein, protein in urine
- 同
- 尿中タンパク質、尿タンパク
- 関
- 蛋白尿、尿蛋白/クレアチニン比
尿蛋白の生化学
- 1/3は血清アルブミン
- 1/3はアルブミン以外の小分子蛋白質
- 1/3は尿細管上皮細胞中のタム-ホースフォール蛋白質(ムコ蛋白質)
基準値
24時間蓄尿
- 運動、体位、精神的ストレスによって変動しうる
- 20-120 mg/day (臨床検査法提要第32版 p.1806)
- <150 mg/day (HIM.A-11)
生理的な尿蛋白
- 起立性蛋白尿:体位による。糸球体濾過圧が高まる?
- 機能性蛋白尿:運動、発熱、ストレス
診断
- 24時間蓄尿:150 mg/日以上で異常。1 g/day以上で糸球体疾患疑い。 ネフローゼ症候群の診断基準は3.5g/day以上
- 随時尿:30 mg/dl以上で異常
尿蛋白量と診断の目安
- 内科診断リファレンス.350
尿蛋白
|
|
150mg/日未満
|
健常者の基準(15mg/dL 10dL)
|
300mg/日
|
糖尿病性腎症の顕性タンパク尿の定義
|
1000mg/日
|
起立性タンパク尿や熱性タンパク尿などの良性タンパク尿の上限 (血尿があるときは500mg/日のタンパク尿で腎疾患を考慮)
|
1500-3000mg/日
|
尿細管障害によるタンパク尿の限界で、これ以上は糸球体疾患と考える。
|
腎前性
腎性(腎実質性)
腎後性
- 下部尿路系の尿路結石
- 腎盂腫瘍
- 尿管腫瘍
- 膀胱腫瘍
尿蛋白による尿細管の障害
- 尿蛋白→尿細管での過剰吸収・蓄積→尿細管間質へのマクロファージ・T細胞の浸潤→(in vitroでは尿細管細胞をアルブミンと共存させるとMCP-1・炎症性サイトカイン(TNF, IL-1, LPS, 変性IgG)を分泌→間質炎症反応→間質線維化→腎瘢痕
臨床関連
異常値の出るメカニズム第5版 p.177改
検査
試験紙法
- 随時尿で施行可能。感度が低い。
- 強アルカリ性で偽陽性 ← アルカリ性で青変する試薬を使用
- X線造影剤で偽陽性はでない。
- Bence Jones蛋白に対しては偽陰性
24時間蓄尿
検査法の比較(QB E-134)
|
煮沸法
|
スルフォサリチル酸法
|
試験紙法
|
原理
|
蛋白質の熱変性による混濁 (特異性が高い)
|
蛋白と酢酸の不溶性塩による混濁
|
指示薬の蛋白誤差を利用
|
感度
|
5mg/dl
|
1.5-2mg/dl (鋭敏)
|
5-20 mg/dl
|
偽陽性
|
ヨード造影剤 トルブタミド ペニシリン系抗菌薬 セフェム系抗菌薬
|
リン酸塩を含むアルカリ性尿 第4級アンモニウム化合物 (防腐剤、洗浄剤)EDTAのことか?
|
偽陰性
|
リン酸塩を含むアルカリ性尿
|
低分子タンパク尿(BJP等)
|
試験紙法による蛋白尿の評価
- 参考1
- 尿蛋白:± = 15 mg/dL。1+ = 30 mg/dL。2+ = 100 mg/dL。3+ = 300mg/dL ← 赤字はメーカー間で差が少ないらしい。
- 1+では蛋白尿が存在すると考えて良い水準。
参考
- http://www.jsn.or.jp/jsn_new/iryou/kaiin/free/primers/pdf/CKDguide2009.pdf
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- 関
- urinary organ、urinary tract、urine、uro