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2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Cell adhesion yog txheej txheem uas hlwb sib tham thiab muab mus nyob ze hlwb los ntawm tshwj xeeb molecules ntawm cov ntawm tes nto. Xovtooj adhesion tshwm sim los ntawm kev sib cuam tshuam ntawm ntawm tes -adhesion molecules (CAMs), cov protein transmembrane nyob ntawm ntawm tes nto.
Ntawm no, yuav ua li cas cov cell txuas rau ib leeg?
Cov hlwb yog txuas rau ib leeg los ntawm ntawm tes - ntawm tes adhesions, uas dais feem ntau ntawm cov mechanical stresses. Rau lub hom phiaj no, muaj zog intracellular protein filaments (cov khoom ntawm cov cytoskeleton) hla cov cytoplasm ntawm txhua epithelial ntawm tes thiab muab rau tshwj xeeb kev sib tshuam hauv cov plasma daim nyias nyias.
Qhov thib ob, dab tsi tuav cov cell ua ke hauv lub siab? Cov hepatocytes hauv txhua daim ntawv sib cuam tshuam nrog ib leeg ntawm ntawm tes molecules nto hu ua cadherins. Cadherins muaj nyob rau saum npoo a cev cev khi tshwj xeeb kom nyiam cadherins tam sim no nyob rau saum npoo ntawm ib sab uas nyob ib sab cev cev . Cov daim siab muaj ntau cov hlab ntsha, uas tau hlua nrog endothelial hlwb.
Ua qhov no hauv kev txiav txim siab, yuav ua li cas cov tawv nqaij ntawm tes sib koom ua ke?
Cov khoom siv kho tshuab muaj zog - "kua nplaum" - uas tuav ua ke cov hlwb ntawm tawv nqaij thiab lwm cov ntaub so ntswg epithelial ntawm lub cev yog adherens junctions.
Dab tsi tuav tib neeg lub hlwb ua ke?
Laminin yog cov protein uas yog ib feem ntawm cov txheej txheem extracellular hauv tib neeg thiab tsiaj. Laminin thiab lwm cov protein ECM yeej tseem zoo "kua nplaum" hlwb (xws li cov kab hauv plab thiab cov hnyuv) mus rau lub hauv paus ntawm cov ntaub so ntswg sib txuas. Qhov no khaws cia cov hlwb hauv qhov chaw thiab tso cai rau lawv ua haujlwm kom raug.
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Yog tias "u" raug kev txom nyem los ntawm kev mob leeg nqaij, tom qab ntawd U-Strip kinesiology cov txheej txheem yuav yog qhov koj tab tom nrhiav. "… yog xav kom txo qhov mob thiab txhim kho cov ntshav thiab cov kua dej ntws los ntawm kev siv tshuab nqa cov tawv nqaij hla cov leeg thiab txo qis kev mob ntawm cov neeg mob
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Distal DVT yog nyob ntawm tus ceg qis thiab suav nrog cov leeg infrapopliteal, xws li tom qab tibial, peroneal, sab xub ntiag tibial thiab leeg leeg leeg leeg (ib leeg lossis gemellar). Cov hlab ntshav popliteal tsis suav tias yog qhov nyob deb. Distal DVT tsis yog ib yam li proximal DVT
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Thrombophlebitis tuaj yeem tshwm sim hauv cov leeg ntshav ze ntawm koj cov tawv nqaij lossis tob dua, nyob nruab nrab ntawm koj cov leeg txheej. Tus mob no feem ntau tshwm sim hauv koj ob txhais ceg, tab sis nws muaj peev xwm tsim thrombophlebitis hauv lwm qhov ntawm koj lub cev. Cov ntshav txhaws tuaj yeem ua rau o ntawm cov leeg ntawm koj lub caj dab lossis caj npab, tab sis qhov no tsis tshua muaj
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