IgAプロテアーゼ
WordNet
- the 9th letter of the Roman alphabet (同)i
- any enzyme that catalyzes the splitting of proteins into smaller peptide fractions and amino acids by a process known as proteolysis (同)peptidase, proteinase, proteolytic_enzyme
- any tropical African shrub of the genus Protea having alternate rigid leaves and dense colorful flower heads resembling cones
PrepTutorEJDIC
- 『私は』私が
- iodineの化学記号
Wikipedia preview
出典(authority):フリー百科事典『ウィキペディア(Wikipedia)』「2016/11/30 22:30:21」(JST)
[Wiki en表示]
IgA protease may refer to:
- IgA specific serine endopeptidase, an enzyme
- IgA-specific metalloendopeptidase, an enzyme
UpToDate Contents
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English Journal
- Bacterial IgA protease-mediated degradation of agIgA1 and agIgA1 immune complexes as a potential therapy for IgA Nephropathy.
- Wang L1,2, Li X3, Shen H4, Mao N5, Wang H1, Cui L6, Cheng Y7, Fan J2,3,8.
- Scientific reports.Sci Rep.2016 Aug 3;6:30964. doi: 10.1038/srep30964.
- Mesangial deposition of aberrantly glycosylated IgA1 (agIgA1) and its immune complexes is a key pathogenic mechanism of IgA nephropathy (IgAN). However, treatment of IgAN remains ineffective. We report here that bacteria-derived IgA proteases are capable of degrading these pathogenic agIgA1 and deri
- PMID 27485391
- Fitness Cost of Rifampin Resistance in Neisseria meningitidis: In Vitro Study of Mechanisms Associated with rpoB H553Y Mutation.
- Colicchio R1, Pagliuca C2, Pastore G3, Cicatiello AG4, Pagliarulo C3, Talà A5, Scaglione E4, Sammartino JC4, Bucci C5, Alifano P6, Salvatore P7.
- Antimicrobial agents and chemotherapy.Antimicrob Agents Chemother.2015 Dec;59(12):7637-49. doi: 10.1128/AAC.01746-15. Epub 2015 Sep 28.
- Rifampin chemoprophylaxis against Neisseria meningitidis infections led to the onset of rifampin resistance in clinical isolates harboring point mutations in the rpoB gene, coding for the RNA polymerase β chain. These resistant strains are rare in medical practice, suggesting their decreased fitnes
- PMID 26416867
- Expression of IgA Proteases by Haemophilus influenzae in the Respiratory Tract of Adults With Chronic Obstructive Pulmonary Disease.
- Murphy TF1, Kirkham C2, Jones MM3, Sethi S4, Kong Y5, Pettigrew MM6.
- The Journal of infectious diseases.J Infect Dis.2015 Dec 1;212(11):1798-805. doi: 10.1093/infdis/jiv299. Epub 2015 May 20.
- BACKGROUND: Immunoglobulin (Ig)A proteases of Haemophilus influenzae are highly specific endopeptidases that cleave the hinge region of human IgA1 and also mediate invasion and trafficking in human respiratory epithelial cells, facilitating persistence of H. influenzae. Little is known about the exp
- PMID 25995193
Japanese Journal
- 慢性腎臓病(CKD)における凝固系と凝固第Xa因子の役割
- 小野 孝彦
- YAKUGAKU ZASSHI 132(4), 449-453, 2012
- … Factor Xa activates various cell types through protease-activated receptor 2 (PAR2). … The factor Xa inhibitor danaparoid ameliorated proteinuria, cellular proliferation, and fibrin deposition in lipopolysaccharide (LPS)-triggered activation of High IgA (HIGA) strain of ddY mice. …
- NAID 130001872047
- IgAサブクラス(IgA1,IgA2)の特性 (特集 IgAの産生をめぐって)
- Mechanism of IgA-albumin complex formation that affects the fructosamine assay
- FUJITA Kiyotaka,KAMEKO Fumiko,KATO Yoko,FUKUSHIMA Mana,OKUMURA Nobuo,TERASAWA Fumiko,SUGANO Mitsutoshi,YAMAUCHI Kazuyoshi,SATO Hirohisa,KAMEKO Mitsuaki,SAKURABAYASHI Ikunosuke
- Journal of electrophoresis 50(2), 19-23, 2006-06-01
- … We recently demonstrated glycation of monoclonal IgA and the presence of IgA-albumin complexes, but the mechanism of IgA-albumin complex formation was not clear. … We isolated the IgA-albumin complexes from 5 IgA type M-proteinemia patients' sera. …
- NAID 10018150539
★リンクテーブル★
[★]
- ラ
- Streptococcus pneumoniae
- 同
- 肺炎球菌、肺炎レンサ球菌、肺炎連鎖球菌、肺炎双球菌、ストレプトコッカス・ニューモニエ
- 関
- 連鎖球菌
- first aid step1 2006 p.134,138
細菌学
- グラム陽性球菌
- 西洋槍(ランセット)型の双球菌
- α溶血性。ランスフィールド分類には分類されない
- オプトヒン感受性
- 自己融解 autolysis ← 培養しすぎに注意
- 中心部の陥凹した集落
- 莢膜多糖体を有する ← 抗食菌作用(C3bの付着に抵抗する)
- IgA proteaseを分泌
- 健常人の5-250%の気道に存在するが莢膜がない弱毒の株
感染症
-
易感染性宿主
- 2歳以下の乳幼児や老人で重症化しやすい
- 脾臓を受けた患者、急性骨髄性白血病、骨髄移植、HIV感染症で発症しやすい
most common cause of:
MOPS are Most OPtochin Sensitive
診断
- 臨床像から疑い、胸部X線、喀痰のグラム染色、尿中抗原を行う。グラム染色と尿中抗原が陽性であれば特異的な治療を開始する。 (IRE.1010)
- (経験的治療の前に?)診断及び感受性検査のために喀痰培養、血液培養検査を行う。
参考
USMLE
[★]
- 英
- immunoglobulin A
- 同
- 免疫グロブリンA γA gamma A
- 関
- 免疫グロブリン Ig
概念
基準値
- 110-410 mg/dl (臨床検査法提要第32版)
臨床関連
[★]
[★]
免疫グロブリン immunoglobulin