WordNet
- a stripe or stripes of contrasting color; "chromosomes exhibit characteristic bands"; "the black and yellow banding of bees and wasps" (同)banding, stria, striation
- an adornment consisting of a strip of a contrasting color or material (同)banding, stripe
- bind or tie together, as with a band
- a driving belt in machinery
- a restraint put around something to hold it together
- a thin flat strip of flexible material that is worn around the body or one of the limbs (especially to decorate the body)
- a thin flat strip or loop of flexible material that goes around or over something else, typically to hold it together or as a decoration
- a range of frequencies between two limits
- instrumentalists not including string players
- (physiology) a shortening or tensing of a part or organ (especially of a muscle or muscle fiber) (同)muscular_contraction, muscle_contraction
- the act of decreasing (something) in size or volume or quantity or scope
- a word formed from two or more words by omitting or combining some sounds; "`wont is a contraction of `will not"; "`oclock is a contraction of `of the clock"
- 100 bani equal 1 leu in Moldova
- 100 bani equal 1 leu in Romania
- prohibit especially by legal means or social pressure; "Smoking is banned in this building"
- an official prohibition or edict against something (同)banning, forbiddance, forbidding
- forbid the public distribution of ( a movie or a newspaper) (同)censor
- marked with bands or strips of contrasting color or texture; "a banded rock"
- characterized by a band of especially white around the body; "banded cattle"
- identified with a band especially around a leg; "kept watch for the return of their banded birds"
- the localized death of living cells (as from infection or the interruption of blood supply) (同)mortification, gangrene, sphacelus
PrepTutorEJDIC
- 『帯』,『バンド』,ひも,(おけの)たが / (色の)すじ,しま / 周波数 / …‘に'バンドを付ける
- (人の)『一隊』,『一団』,一群《+『of』+『名』》 / 『楽隊』,バンド / …'を'一隊(一団)にする / 団結する《+『together』》,(…と)一団になる《+『with』+『名』》
- 〈U〉〈C〉(…の)収縮,短縮《+『of』+『名』》 / 〈U〉(通貨・資金・支出などの)縮小,節減《+『of』+『名』》 / 〈U〉(いやなこと・よくないことを)身に負うこと,(悪習などが)身につくこと《+『of』+『名』》 / 〈C〉陣痛
- (法による)(…に対する)『禁止』,禁制(prohibition)《+『on』+『名』》 / (世論などの)反対,非難 / (教会の)破門 / (法律や社会的圧力によって)…'を'『禁ずる』,禁止する
- 壊疽(えそ)
Wikipedia preview
出典(authority):フリー百科事典『ウィキペディア(Wikipedia)』「2015/09/16 18:15:05」(JST)
[Wiki en表示]
High magnification micrograph showing contraction band necrosis and karyolysis. H&E stain.
Contraction band necrosis is a type of uncontrolled cell death (necrosis) unique to cardiac myocytes and thought to arise in reperfusion from hypercontraction, which results in sarcolemmal rupture.[1]
It is a characteristic histologic finding of a recent myocardial infarction (heart attack) that was partially reperfused.
The name of the histopathologic finding comes from the appearance under the microscope; contraction bands are thick intensely eosinophilic staining bands (typically 4-5 micrometres wide) that span the short axis of the myocyte. They can be thought of extra thick striae, typical of cardiac muscle and striated muscle.
Contents
- 1 Pathophysiology
- 2 Additional images
- 3 See also
- 4 References
- 5 External links
Pathophysiology
Contraction band necrosis is thought to arise by two mechanisms:[1]
- a calcium-dependent mechanism - activation of the contractile machinery of the cell via its usual mechanism, calcium, which is in excess due to ischemia.
- a calcium-independent mechanism, as seen in rigor mortis - activation of the contractile machinery in the setting of low ATP.
Reperfusion associated cell death has been modulated (reduced) in animal studies[2] and is an area of active research, which holds the potential to significantly reduce the morbidity (disease burden) and mortality (death) of cardiovascular disease.[1]
Additional images
-
Contraction band necrosis. H&E stain.
-
Contraction band necrosis. PTAH.
See also
- Myocardial infarction
- Timeline of myocardial infarction pathology
- Guanylyl cyclase
References
- ^ a b c Rodríguez-Sinovas A, Abdallah Y, Piper HM, Garcia-Dorado D (December 2007). "Reperfusion injury as a therapeutic challenge in patients with acute myocardial infarction". Heart Fail Rev 12 (3-4): 207–16. doi:10.1007/s10741-007-9039-9. PMID 17530396.
- ^ Garcia-Dorado D, Inserte J, Ruiz-Meana M et al. (November 1997). "Gap junction uncoupler heptanol prevents cell-to-cell progression of hypercontracture and limits necrosis during myocardial reperfusion". Circulation 96 (10): 3579–86. doi:10.1161/01.cir.96.10.3579. PMID 9396458.
External links
- Contraction band necrosis - pathologypics.com
UpToDate Contents
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English Journal
- Neurogenic Cardiomyopathy in Rabbits With Experimentally Induced Rabies.
- Kesdangsakonwut S1, Sunden Y2, Yamada K3, Nishizono A3, Sawa H4, Umemura T5.
- Veterinary pathology.Vet Pathol.2014 Jul 21. pii: 0300985814543197. [Epub ahead of print]
- Cardiomyopathies have been rarely described in rabbits. Here we report myocardial necrosis of the ventricular wall in rabbits with experimentally induced rabies. Myocardial lesions were found only in rabbits with brain lesions, and the severity of the cardiac lesions was proportional to that of the
- PMID 25047229
- Ventricular arrhythmias induced by long-term use of ephedrine in two competitive athletes.
- Casella M1, Dello Russo A, Izzo G, Pieroni M, Andreini D, Russo E, Colombo D, Bologna F, Bolognese L, Zeppilli P, Tondo C.
- Heart and vessels.Heart Vessels.2014 Jan 4. [Epub ahead of print]
- Ephedrine is a sympathomimetic substance used by sportsmen as a doping substance because of its stimulating and slimming effects. We report two cases of ventricular arrhythmias induced by abuse of ephedrine in two competitive athletes. Endomyocardial biopsies guided by electroanatomic mapping reveal
- PMID 24390726
Japanese Journal
- 西 勝弘,刑部 光正,伊関 憲
- 山形大学紀要. 医学 : 山形医学 29(2), 71-76, 2011-08-15
- 44歳、女性。乗用車を運転中に意識消失し、20分後に救急隊が到着した際には心肺停 止状態であった。心電図上は心室細動であり、心肺蘇生法や除細動等を施行しながら、 当院救急部へ搬送された。救命処置を行うも反応なく、死亡が確認された。autopsy imagingを施行したが、明らかな死因の特定に至らず、剖検を行った。冠動脈3枝のい ずれにおいても粥状動脈硬化を認め、さらに左前下行枝の中枢側には壁在性 …
- NAID 110008614768
Related Links
- Pathophysiology [edit] Contraction band necrosis is thought to arise by two mechanisms: [1] a calcium-dependent mechanism - activation of the contractile machinery of the cell via its usual mechanism, calcium, which is in excess ...
- contraction band necrosis A nonspecific finding in irreversibly ischaemic myocytes, often the only (albeit unreliable) histologic change seen in hyperacute myocardial infarction and sudden cardiac death, where central coagulated cells ...
★リンクテーブル★
[★]
- 英
- contusio cordis, myocardial contusion
- 同
- 心挫傷
- 関
- 心臓、挫傷、contraction band necrosis。心損傷
- 強力な外力により心臓が胸骨と脊柱の間に瞬間的に挟圧されて生じる(SLE.125)
- 生じうる障害:心外膜か出血、心筋内出血、心筋壊死、冠状動脈主幹部損傷による外傷性心筋梗塞・致死性不整脈、心タンポナーデ
- 分類
参考
http://health.goo.ne.jp/medical/search/10560900.html
http://www.drakahige.com/DISEASE/DiseaseSearch?key=%A4%B7%A4%F3&disease_no=10T60300
[★]
- 短縮、収縮。(筋肉の)収縮、攣縮。(医)(腎・肝・膀胱などの)萎縮
- 縮小。制限。(通貨・資金などの)制限、回収、縮小。不況
- (数)縮小、縮約。省略算。(文法)縮約、短縮
- 負債を作ること、病気にかかること、癖のつくこと
- 交わり/約束を結ぶこと(of)
[★]
- 関
- banding、cingulum、zona、zonae、zone
[★]
- 関
- abstinent、forbid、interdict、prohibit、prohibition、prohibitive
[★]
- 関
- band、ligate、ligation、strangulation