A ceramide yog muaj sphingosine thiab fatty acidLawv pom muaj nyob rau hauv siab ntau hauv cov cell membrane ntawm cov hlwb. Lawv yog ib qho ntawm cov lipid tivthaiv uas ua rau sphingomyelin, ib qho ntawm cov lipids loj hauv lipid bilayer uas ua rau muaj kev cuam tshuam tsis tu ncua nyob ib puag ncig cov hlwb.
Sphingosine yog dab tsi?
Sphingosine (2-amino-4-trans-octadecene-1, 3-diol) yog an 18-carbon amino cawv nrog cov saw hlau tsis muaj hydrocarbon, uas yog thawj zaug ib feem ntawm sphingolipids, chav kawm ntawm cell membrane lipids uas suav nrog sphingomyelin, ib qho tseem ceeb phospholipid.
YPuas yog sphingomyelin ib ceramide?
Sphingomyelin muaj cov phosphocholine taub hau pab pawg, sphingosine, thiab fatty acid. Nws yog ib qho ntawm ob peb daim nyias nyias phospholipids tsis tau tsim los ntawm glycerol. Cov sphingosine thiab fatty acid tuaj yeem sib sau ua ke raws li a ceramide.
Dab tsi yog sphingosine ua ntej ntawm?
Sphingosine yog lub hauv paus loj tshwm sim nyob rau hauv sphingolipids. … Lub N-acylated derivative ntawm sphingosine, ceramide yog qhov ua ntej ntawm feem ntau ntawm sphingolipids thiab nws tau raug cais tawm hauv lub xeev dawb los ntawm neuronal thiab ntau lwm cov ntaub so ntswg (Gatt, 1963; Martensson, 1969; Samuelsson, 1969).
Muaj pes tsawg hom ceramides?
Ntau txog cuaj yam ceramides tau txheeb xyuas hauv daim tawv nqaij thiab hauv cov ceramides muaj ob hom: Sphingosine thiab Phytosphingosine.
