adj.

乳糜管の、乳び管の、乳糜の、乳びの

関: chyle、chylous

WordNet

relating to or consisting of or producing or resembling milk; "lacteal fluids"; "lacteal organs"
any of the lymphatic vessels that convey chyle from the small intestine to the thoracic duct
a milky fluid consisting of lymph and emulsified fats; formed in the small intestine during digestion of ingested fats

PrepTutorEJDIC

乳の,乳状の;乳からできている

Wikipedia preview

出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2015/09/18 10:29:29」(JST)

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[Wiki en表示]

A lacteal is a lymphatic capillary that absorbs dietary fats in the villi of the small intestine.

Triglycerides are emulsified by bile and hydrolyzed by the enzyme lipase, resulting in a mixture of fatty acids and monoglycerides.^[1] These then pass from the intestinal lumen into the enterocyte, where they are re-esterified to form triacylglycerol. The triacylglycerol is then combined with phospholipids, cholesterol ester, and apolipoprotein B-48 to form chylomicrons. These chylomicrons then pass into the lacteals, forming a milky substance known as chyle. The lacteals merge to form larger lymphatic vessels that transport the chyle to the thoracic duct where it is emptied into the bloodstream at the subclavian vein.^[2]^[3]

At this point, the fats are in the bloodstream in the form of chylomicrons. Once in the blood, chylomicrons are subject to delipidation by lipoprotein lipase. Eventually, enough lipid has been lost and additional apolipoproteins gained, that the resulting particle (now referred to as a chylomicron remnant) can be taken up by the liver. From the liver, the fat released from chylomicron remnants can be re-exported to the blood as the triglyceride component of very low density lipoprotein (VLDL). VLDL, also subject to delipidation by vascular lipoprotein lipase, delivers fats to tissues throughout the body and, in particular, the released fatty acids can be stored in adipose cells as triglycerides. As triglycerides are lost from VLDL the lipoprotein particle becomes smaller and denser (since protein is denser than lipid) and ultimately becomes low density lipoprotein (LDL). A great deal has been written about LDL because it is thought to be atherogenic.

Note that in contrast to any other route of absorption from the small intestine, the lymphatic system avoids first pass metabolism.

References

^ Young, Barbara & Wheater, Paul, eds. (2006). Wheater's functional histology: a text and colour atlas. Elsevier Health Sciences. p. 279. ISBN 978-0-443-06850-8.
^ Newsholme, Eric & Leech, Anthony (2009). Functional Biochemistry in Health and Disease. John Wiley & Sons. p. 79. ISBN 978-0-471-98820-5.
^ Montague, Susan E. et al, eds. (2005). Physiology for nursing practice. Elsevier. p. 502. ISBN 978-0-7020-2676-8.

External links

Histology image: 11705loa – Histology Learning System at Boston University - "117. Digestive System: Alimentary Canal jejunum, central lacteals "

English Journal

Prepartum supplementation of nicotinic acid: Effects on health of the dam, colostrum quality, and acquisition of immunity in the calf.

Aragona KM1, Chapman CE1, Pereira AB1, Isenberg BJ1, Standish RB1, Maugeri CJ1, Cabral RG2, Erickson PS3.
Journal of dairy science.J Dairy Sci.2016 May;99(5):3529-38. doi: 10.3168/jds.2015-10598. Epub 2016 Feb 18.
Nicotinic acid (NA) has been shown to reduce lipolysis, alter milk components and the ruminal environment, and increase blood flow. Increased blood flow to the mammary gland during colostrogenesis might increase nutrients and immunoglobulin concentration of colostrum. Twenty-six multiparous Holstein
PMID 26898282

Promotion and consumption of commercially produced foods among children: situation analysis in an urban setting in Senegal.

Feeley AB1, Ndeye Coly A2, Sy Gueye NY2, Diop EI3, Pries AM4, Champeny M5, Zehner ER5, Huffman SL6.
Maternal & child nutrition.Matern Child Nutr.2016 Apr;12 Suppl 2:64-76. doi: 10.1111/mcn.12304.
This study assessed the promotion of commercially produced foods and consumption of these products by children less than 24 months of age in Dakar Department, Senegal. Interviews with 293 mothers of children attending child health clinics assessed maternal exposure to promotion and maternal recall
PMID 27061957

A study of the role of Notch1 and JAG1 gene methylation in development of breast cancer.

Sun H1, Li K2, Shen S3.
Medical oncology (Northwood, London, England).Med Oncol.2016 Apr;33(4):35. doi: 10.1007/s12032-016-0750-z. Epub 2016 Mar 12.
This study is to explore the roles of gene methylation of Notch1 and JAG1 in development of invasive ductal carcinoma of breast. Quantitative analysis the DNA methylation levels of Notch1 and JAG1 gene by the MassARRAY method in invasive ductal carcinoma of breast (IDC; n = 89), atypical ductal hy
PMID 26971121

Lipopolysaccharide derived from the digestive tract activates inflammatory gene expression and inhibits casein synthesis in the mammary glands of lactating dairy cows.

Zhang K1, Chang G1, Xu T1, Xu L1, Guo J1, Jin D1, Shen X1.
Oncotarget.Oncotarget.2016 Mar 1;7(9):9652-65. doi: 10.18632/oncotarget.7371.
To meet the nutrition requirements of lactation, dairy cows are usually fed a high concentrate diet (HC). However, high-grain feeding causes subacute ruminal acidosis (SARA), a metabolic disorder that causes milk protein depression. This study aimed to investigate the effect of lipopolysaccharide (L
PMID 26893357

Japanese Journal

男里川河口部における土壌および微地形の違いに対するカニ類３種の分布域に関する研究

戸田健太郎,中村彰宏,塩井景介 [他],前中久行
ランドスケープ研究 73(5), 441-446, 2010
We investigated distributions of 3 species of crabs,Uca lactea, Macrophthalmus japonicus and Helice tridens, and soil conditions at random 364 plots in the mouse of the Onosato River, Osaka in Septemb …
NAID 130000992021

Relationship beween central lacteals and smooth muscular bundles in small intestinal villi of rats

大久保眞人
国際医療福祉大学紀要 7, 49-54, 2003-12-25
小腸壁内のリンパ輸送は一般に絨毛のピストン様往復運動によるが、ラットでは特異的に振り子運動である。絨毛運動は内在する平滑筋によるが、その分布形態は不明である。本研究では免疫組織化学的手法を用いてラット小腸純毛の平滑筋の分布を観察した。ラット小腸絨毛は小腸の吻側から肛門側に向かうに従って山脈状から指状に変化する。中心リンパ管は単一絨毛内に複数存在し、基底部で集合して一本になる。平滑筋束の発達程度は吻 …
NAID 110008677648

ミルクオリゴ糖とラクトースの進化

Messer Michael,Urashima Tadasu
Trends in glycoscience and glycotechnology 14(77), 153-176, 2002-05-02
現存する哺乳動物種は、単孔類, 有袋類ならびに真獣類(有胎盤類)によって構成される。これら3類は繁殖戦略において著しく異なっているが、泌乳するという特徴においては共通している。すなわち、メスは孵化 (単孔類) また出産 (有袋類、真獣類) 後に乳を分泌する。大半の真獣類の乳において主要糖質はラクトースであるが、泌乳期乳腺においてβ4ガラクトシルトランスフェラーゼIとα-ラクトアルブミンの会合体であ …
NAID 10012195713

Fischer 344系ラットにおけるコリン欠乏およびコリン添加アミノ酸食の長期投与による毒性と発癌性

安藤信明
Journal of Nara Medical Association 51(6), 508-525, 2000-12-31
… The CDAA diet induced intestinal lacteal dilatations in both genders, and promoted the induction of nephropathies in both genders and nephrocalcinoses in males. …
NAID 120004973125

「chylous」

Lacteal
	Transverse section of a villus, from the human intestine. X 350.; a. Basement membrane, here somewhat shrunken away from the epithelium.; b. Lacteal.; c. Columnar epithelium.; d. Its striated border.; e. Goblet cells.; f. Leucocytes in epithelium.; f’. Leucocytes below epithelium.; g. Bloodvessels.; h. Muscle cells cut across.
	Villi of small intestine, showing bloodvessels and lymphatic vessels.
Dorlands; /Elsevier	l_01/12474659
	Anatomical terminology

　　[★]

adj.

乳びの、乳び性の

関: chyle、lacteal

「乳び管」

　　[★]

英: lacteal
関: 乳び、乳糜管、乳糜

「乳糜管」

　　[★]

英: lacteal
関: 乳び、乳糜、乳び管

[1] Young, Barbara & Wheater, Paul, eds. (2006). Wheater's functional histology: a text and colour atlas. Elsevier Health Sciences. p. 279. ISBN 978-0-443-06850-8.

[2] Newsholme, Eric & Leech, Anthony (2009). Functional Biochemistry in Health and Disease. John Wiley & Sons. p. 79. ISBN 978-0-471-98820-5.

[3] Montague, Susan E. et al, eds. (2005). Physiology for nursing practice. Elsevier. p. 502. ISBN 978-0-7020-2676-8.

Lacteal
Transverse section of a villus, from the human intestine. X 350. a. Basement membrane, here somewhat shrunken away from the epithelium. b. Lacteal. c. Columnar epithelium. d. Its striated border. e. Goblet cells. f. Leucocytes in epithelium. f’. Leucocytes below epithelium. g. Bloodvessels. h. Muscle cells cut across.
Villi of small intestine, showing bloodvessels and lymphatic vessels.
Dorlands /Elsevier	l_01/12474659
Anatomical terminology

匿名

検索

案内

案内

lacteal