Lipids yog cov sib xyaw ua ke, uas suav nrog cov roj ntsha ntau dua thiab cov esters. Lawv tsis yaj nyob rau hauv dej, tab sis tsuas yog nyob rau hauv cov organic solvents. Lub luag haujlwm tseem ceeb ntawm cov rog yog cov qauv thiab kev tswj hwm, nrog rau muab lub cev muaj zog.
Lub luag haujlwm ntawm lipids yog tias lawv tsim lub hauv paus ntawm cell membranes. Kev tswj hwm kev ua haujlwm ntawm lipids yog los xyuas kom meej qhov permeability ntawm daim nyias nyias thiab lawv cov receptor apparatus, uas tso cai rau catecholamine, acetylcholine, nrog rau insulin thiab cytokines ua rau cov hlwb. Tsis tas li ntawd, cov rog muab cov colloidal lub xeev ntawm cell membranes, lawv fluidity, nrog rau cov kev ua ntawm ib tug neeg enzymes, xws li cytochrome oxidase, guanylate cyclase, ATPase. Ib hom lipids (BAS), uas suav nrog cov tshuaj hormones steroid, leukotrienes thiab platelet activating yam, muaj peev xwm tswj tau kev ua haujlwm ntawm tib neeg lub hlwb, tab sis kuj cov ntaub so ntswg thiab lub cev.
Kev ua haujlwm ntawm lipids suav nrog lawv lub luag haujlwm hauv kev muab lub cev nrog lub zog, uas yog siv rau cov leeg nqaij, hauv kev ua haujlwm ntawm cov kabmob hauv nruab nrog cev, tshwj xeeb tshaj yog rau lub raum thiab daim siab, thiab hauv cov hlab ntsha.
Nws tsim nyog sau cia tias cov haujlwmlipids muaj feem xyuam nrog lawv cov qauv. Lawv qhov muaj pes tsawg leeg thiab zoo muaj pes tsawg leeg ua kom muaj kev ua haujlwm ntawm cov hlwb thiab lawv cov haujlwm. Yog li, piv txwv li, daim nyias nyias phospholipids tuaj yeem cuam tshuam rau kev thauj cov protein thiab ion channel, thiab kev hloov pauv hauv lawv txoj haujlwm ua rau muaj kev cuam tshuam ntawm cov haujlwm ntawm cov hlwb thiab tag nrho lub cev.
Cov rog yog cov khoom tseem ceeb. Ntxiv nrog rau cov haujlwm no, lawv kuj tau koom nrog hauv thermoregulation, vim lawv ua cua sov tsis zoo. Yog vim li cas cov rog subcutaneous pab lub cev kom sov.
Nws tseem yuav tsum tau hais tias cov roj subcutaneous muaj cov cuab yeej cushioning, yog li nws muaj peev xwm tiv thaiv kab mob hauv nruab nrog cev (piv txwv li, ob lub raum) los ntawm kev puas tsuaj, txawm hais tias nws qhov ntau dhau tuaj yeem cuam tshuam rau lawv txoj haujlwm, uas feem ntau pom nyob rau hauv. Kev ua txhaum ntawm lipid metabolism, piv txwv li, hauv kev rog.
Lub luag haujlwm catalytic ntawm lipids yog txuam nrog cov roj-soluble vitamins, uas yog ib feem ntawm ntau enzymes. Cov rog kuj yog qhov chaw ntawm cov metabolism hauv dej, txij li thaum cov tshuaj no oxidized, dej tsim. Lawv kuj yog ib feem ntawm qhov tso tawm ntawm cov qog sebaceous, uas tiv thaiv cov tawv nqaij qhuav heev.
Muab lub luag haujlwm tseem ceeb ntawm cov rog, nws yog qhov tsim nyog kom lawv nkag mus rau hauv lub cev kom muaj nuj nqis txaus. Ib qho tseem ceeb ntawm cov tebchaw no yog cov khoom tsiaj, ntses, txiv ntseej, roj zaub, khoom noj siv mis thiab qe qe.
Kev pauv cov rog hauv tib neeg lub cev yog nyob ntawm ntau yam. NtawmKev ua txhaum ntawm ib qho ntawm cov kev sib txuas hauv cov metabolism ntawm cov tshuaj no tsim ntau yam kab mob thiab kab mob - rog, noj tsis txaus, lipodystrophy lossis lipidosis. Nyob rau hauv pathogenesis ntawm lawv txoj kev loj hlob, muaj feem ntau yog mob plab zom mov thiab nqus cov rog, ua txhaum ntawm lawv transmembrane hloov, nrog rau kev hloov pauv hauv cov metabolism hauv cov hlwb.
Cov kab mob no yog tus yam ntxwv los ntawm kev kho mob tshwj xeeb, ua txhaum txoj cai ntawm tus neeg thiab yuav tsum tau kuaj xyuas thiab kho raws sijhawm.
