- 関
- aplastic, dysgenesis, hypoplasia
WordNet
- failure of some tissue or organ to develop
- infertility between hybrids
- underdevelopment of an organ because of a decrease in the number of cells
Wikipedia preview
出典(authority):フリー百科事典『ウィキペディア(Wikipedia)』「2012/11/09 23:04:22」(JST)
[Wiki en表示]
Aplasia (from Greek a—not; plasis—molding) is defined in general as "defective development or congenital absence of an organ or tissue."[1][2] In the field of hematology, the term refers to "incomplete, retarded, or defective development, or cessation of the usual regenerative process."[1][2]
Examples
- Acquired pure red cell aplasia
- Aplasia cutis congenita
- Aplastic anemia
- Germ cell aplasia, also known as Sertoli cell-only syndrome
- Radial aplasia
- Thymic aplasia, which is found in DiGeorge syndrome and also occurs naturally as part of the gradual loss of function of the immune system later in life
See also
- Atrophy
- Hyperplasia
- Hypoplasia
- Neoplasia
References
- ^ a b Stedman's medical dictionary. Baltimore: Williams and Wilkins. 1990. pp. 106. ISBN 0-683-07916-6.
- ^ a b "Stedman's > aplasia". Drugs.com. http://www.drugs.com/dict/aplasia.html. Retrieved 17 February 2010.
UpToDate Contents
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English Journal
- CyclinD1 Down-Regulation and Increased Apoptosis Are Common Features of Cohesinopathies.
- Fazio G1, Gaston-Massuet C2, Bettini LR3, Graziola F2,4, Scagliotti V2, Cereda A3, Ferrari L5, Mazzola M6, Cazzaniga G1, Giordano A7,8, Cotelli F6, Bellipanni G7,8, Biondi A1,3, Selicorni A3, Pistocchi A5,6, Massa V4.
- Journal of cellular physiology.J Cell Physiol.2016 Mar;231(3):613-22. doi: 10.1002/jcp.25106.
- Genetic variants within components of the cohesin complex (NIPBL, SMC1A, SMC3, RAD21, PDS5, ESCO2, HDAC8) are believed to be responsible for a spectrum of human syndromes known as "cohesinopathies" that includes Cornelia de Lange Syndrome (CdLS). CdLS is a multiple malformation syndrome affecting al
- PMID 26206533
- Pathophysiology of Corneal Dystrophies: From Cellular Genetic Alteration to Clinical Findings.
- Sacchetti M1, Macchi I2, Tiezzi A3, La Cava M3, Massaro-Giordano G4, Lambiase A3.
- Journal of cellular physiology.J Cell Physiol.2016 Feb;231(2):261-9. doi: 10.1002/jcp.25082.
- Corneal dystrophies are a heterogeneous group of bilateral, inherited, rare diseases characterized by slowly progressive corneal opacities, that lead to visual impairment. Most of them have an autosomal dominant pattern of inheritance with variable expressivity, but new mutations have been described
- PMID 26104822
- In Vivo toxicological assessment of biologically synthesized silver nanoparticles in adult Zebrafish (Danio rerio).
- Krishnaraj C1, Harper SL2, Yun SI3.
- Journal of hazardous materials.J Hazard Mater.2016 Jan 15;301:480-91. doi: 10.1016/j.jhazmat.2015.09.022. Epub 2015 Sep 14.
- The present study examines the deleterious effect of biologically synthesized silver nanoparticles in adult zebrafish. Silver nanoparticles (AgNPs) used in the study were synthesized by treating AgNO3 with aqueous leaves extract of Malva crispa Linn., a medicinal herb as source of reductants. LC50 c
- PMID 26414925
Japanese Journal
- 増田 道彦,浅野 千尋,MASUDA Michihiko,ASANO Chihiro
- 東京女子医科大学雑誌 83(臨時増刊(泉二登志子教授退任記念)), E485-E488, 2013-03-31
- NAID 120005296691
- 増田 道彦/浅野 千尋
- 東京女子医科大学雑誌 83(E2), E485-E488, 2013-03-31
- 後天性赤芽球癆は、特発性と続発性に分類され、続発性赤芽球癆の原因疾患は、胸腺腫、大顆粒リンパ球白血病、骨髄異形成症候群、固形がん、パルボウイルスB19、膠原病、妊娠、薬剤、透析、造血幹細胞移植後の血液型不適合などに分類できる。,大顆粒リンパ球白血病の貧血は、T細胞のモノクローナルな増殖による赤芽球系細胞への細胞障害活性によるともの考えられる。特発性赤芽球癆、胸腺腫、骨髄異形成症候群、でもT細胞のモ …
- NAID 110009575056
- B細胞性リンパ腫に対する化学療法奏効後に寛解が得られたリンパ腫関連赤芽球癆
Related Links
- aplasia [ah-pla´zhah] defective development or complete absence of an organ due to failure of development of the embryonic tissues or cells. 2. a hematologic disorder in which the normal progression of cell generation and ...
- a·pla·sia (ə-plā′zhə) n. Defective development resulting in the absence of all or part of an organ or tissue. aplasia (əˈpleɪzɪə) n (Pathology) pathol congenital absence or abnormal development of an organ or part [C19: New Latin, from a-1 ...
Related Pictures
★リンクテーブル★
[★]
- 癆 aplasia
- 英
- pure red cell aplasia, PRCA
- 同
- 純赤血球形成不全?
- 関
- 貧血、再生不良性貧血
概念
- 赤芽球形成が選択的に障害される再生不良性貧血
- 正球性正色素性貧血をきたす。
病態
- 何らかの原因により骨髄から赤血球系の前駆細胞が消失する。
- 無構造血、溶血性貧血も見られないし、間接ビリルビン、ハプトグロビン、LDHも上昇しない。
検査
- 血算:血小板数、白血球数は正常。網状赤血球が正常~減少。
- 骨髄穿刺:網状赤血球が正常~減少をみたら骨髄穿刺を施行し、過形成であれば脾機能亢進症、腎性貧血、悪性腫瘍、低形成であれば再生不良性貧血、
赤芽球癆?、正形成であれば赤芽球癆が疑われる。赤芽球癆の場合、赤血球系の細胞は存在しない。パルボウイルス感染症の場合にはgiant proerythroblastが見られる(参考1)。
- 血製鉄:上昇
- UIBC:↓ (トランスフェリンが鉄で飽和してしまう)
鉄の動態にまつわる検査
- %RCU:低下 ← 赤芽球が少ないので、ヘムにとりこまれ末梢血に出現するのが遅い
- PIDT1/2:延長 ← 赤芽球が少ないので骨髄で取り込まれるのが遅い
USMLE
参考
- 1. [charged] Acquired pure red cell aplasia - uptodate [1]
[★]
異形成、形成不全、形成異常、形成不全症、形成異常症、発育異常、異発生
- 関
- aplasia、aplastic、dysgenetic、dysgenic、dysplasia、dysplastic、heteroplasia、heteroplasmy、hypoplasia、malformation、metaplasia、metaplastic
[★]
- 英
- hypoplasia、aplasia、dysgenesis、aplastic
- 関
- 異形成、異発生、形成異常、再生不良性、発育異常、発育不全、無形成、低形成、形成異常症、形成不全症
[★]
- 英
- atrophy
- ラ
- atrophia
- 関
- 退縮。肥大、過形成
概念
[★]
- 関
- abortion、abortive、agenesis、、dysgenesis、hypotrophy
- 無形成、aplasia、aplastic