Lipid metabolism: yooj yim theem ntawm roj metabolism hauv

Lipid metabolism - nws yog ib lub metabolism ntawm cov nqaijrog thiab muaj roj-zoo li tshuaj. Txauv lipid muaj plaub kauj ruam: splitting, haum, intermediate thiab zaum kawg exchanges.

Lipid metabolism: kev zom. Feem ntau cov lipids, uas yog ib feem ntawm cov khoom noj absorbed los ntawm lub cev tsuas yog tom qab ua ntej digestion. Nyob rau hauv qhov kev txiav txim ntawm digestive kua, lawv yog hydrolyzed (cleaved) rau hauv tej yam yooj yim tebchaw (glycerol, siab dua fatty acids, sterols, phosphoric acids, nitrogenous bases, siab dua alcohols, etc.) yog absorbed txheej membrane ntawm lub alimentary kwj dej.

Lub qhov ncauj zaub mov uas muaj lipids, mechanically txiav, mixed, wetted nrog cov qaub ncaug thiab hloov mus rau hauv com zaub mov. Shredded zaub mov loj los ntawm cov hlab pas nkag mus rau hauv lub plab. Ntawm no lawv sib tov thiab infiltrate lub pais plab kua txiv. Pais plab kua txiv muaj ib tug lipolytic enzyme - lipase, uas muaj peev xwm zom cov roj emulsification. Khoom noj khoom haus los ntawm lub plab mus rau lub masses nyob rau hauv me me feem nkag rau hauv lub duodenum, jejunum, thiab ces nyob rau hauv lub ileum. Ntawm no xaus hauv tus txheej txheem ntawm splitting cov lipids yog absorbed thiab lawv hydrolysis khoom. Lub lipid splitting koom cov kua tsib, pancreatic kua txiv thiab plab hnyuv kua txiv.

Kua tsib - nws yog ib daim card, uas yog tsim los ntawm hepatocytes. Lub pes tsawg leeg ntawm cov kua tsib muaj xws li cov kua tsib acids, thiab pigments, degradation khoom ntawm hemoglobin, mucin, cholesterol, lecithin, Sibhawm, ib co enzymes, cov tshuaj hormones, etc. Kua tsib yog noj ib feem nyob rau hauv lub emulsification ntawm lipids, lawv plab zom mov thiab haum; txhawb ib txwm peristalsis ntawm lub plob tsis so tswj; exhibits bactericidal ntxim rau cov plab hnyuv microflora. Kua tsib acids yog tsim los ntawm roj. Fatty acid txo tus nto nro ntawm cov rog mob emulsifying lawv tsim kho lub secretion ntawm pancreatic kua txiv, raws li zoo raws li qhib qhov kev txiav txim ntawm ntau enzymes. Nyob rau hauv cov hnyuv cov zaub mov loj txia pancreatic kua txiv, uas muaj sodium hydrogencarbonate thiab lipolytic enzymes: lipase, esterase, phospholipase, phosphatase, etc.

Lipid metabolism: haum. Feem ntau ntawm lipids absorbed rau hauv lub qis ib feem ntawm lub duodenum thiab lub jejunum hnyuv. khoom noj khoom haus lipid zom cov zaub mov cov khoom absorbed lub epithelium ntawm lub villi. Lub suction nto ntawm epithelial hlwb muaj zog los ntawm microvilli. Qhov kawg lipid hydrolysis khoom muaj me me roj, di- thiab monoglycerides siab fatty acids, glycerol, glycerophosphate, nitrogenous bases, cholesterol, siab dua alcohols thiab phosphoric acid. Nyob rau hauv txoj hnyuv loj lipolytic enzymes yog tsis tuaj kawm ntawv. nyuv hnoos qeev muaj ib tug me me npaum li cas ntawm phospholipids. Cholesterol, uas yog tsis sucked, txo kom koprosterina quav.

Lipid metabolism: intermediate pauv. Nyob rau hauv lub lipids nws muaj ib co nta uas pw nyob rau hauv lub fact tias lub me me hnyuv cia li tom qab lub suction fission cov khoom no tshwm sim resynthesis lipids xam qhovkev rau tus txiv neej.

Lipid metabolism: kawg pauv. Qhov loj kawg khoom ntawm lipid metabolism yog cov pa roj carbon dioxide thiab dej. Cov yav tas sawv tawm raws li ib feem ntawm cov zis thiab hws, tej quav, exhaled cua. Carbon dioxide yog tso tawm feem ntau hauv lub ntsws. Qhov kawg pauv rau tej pab pawg ntawm lipids nws muaj nws tus yam ntxwv.

Mob ntawm lipid metabolism. Lipid metabolism yog ntxhov nyob rau hauv ntau mob, tus thiab uas tsis yog-sib kab mob. Lub pathology ntawm lipid metabolism cai nyob rau hauv yuam cai ntawm neurohumoral kev cai ntawm kev zom kev ntawm haum, biosynthesis thiab lipolysis. Ntawm cov mob ntawm lipid metabolism feem ntau sau npe rog.

Rog - ib tug predisposition mus ntev li nce nyob rau hauv lub cev hnyav vim ntev li roj deposition nyob rau hauv lub subcutaneous cov ntaub so ntswg thiab lwm tus lub cev nqaij thiab intercellular qhov chaw. Sibhawm tso rau hauv cov roj hlwb nyob rau hauv daim ntawv ntawm triglycerides. Cov nab npawb ntawm cov roj hlwb tsis nce, tiam sis tsuas yog tsub kom lawv ntim. Nws yog ib qhov hypertrophy ntawm roj hlwb yog ib tug loj tshaj nyob rau hauv rog.