Nyob rau hauv BPPV, vertigo yog vim cov khib nyiab uas tau sau nyob rau hauv ib feem ntawm pob ntseg sab hauv. Cov pob zeb me me ntawm calcium carbonate, lub npe hu ua "otoconia" lossis "canaliths", tau tawg tawm ntawm ib feem ntawm pob ntseg sab hauv hu ua utricle thiab tsiv mus rau lwm qhov ntawm pob ntseg sab hauv. lub kwj dej semi-circular.
Dab tsi ua rau otoconia?
Otoconia txawv txav tuaj yeem muaj ntau yam ua rau xws li caj ces hloov, mob taub hau thiab tshuaj ototoxic. Txhawm rau txheeb xyuas cov molecular etiology ntawm cov kab mob vestibular, nws yog ib qho tseem ceeb kom nkag siab txog cov txheej txheem uas otoconia tsim thiab khaws cia.
Yuav ua li cas thiaj tshem tau cov muaju hauv koj pob ntseg?
Koj kho cov pob zeb xoob li cas? Tus kws kho mob lossis tus kws kho lub cev vestibular (PT) tuaj yeem qhia koj yuav ua li cas thiaj li ua tau qhov kev tawm dag zog tus kheej hauv tsev. Ua ke hu ua the Epley maneuver, lawv txav pob ntseg pob ntseg rov qab los rau hauv qhov chaw, thiab yooj yim ua rau saum txaj lossis hauv pem teb.
Otoconia yog dab tsi?
Lub otoconia yog ua los ntawm calcium carbonate (CaCo3) ua ke nrog cov protein matrix protein(kwv yees li 40% ntawm qhov ntim). Calcium carbonate kuj yog ib qho tseem ceeb ntawm "limestone", yog li otoconia yog qhov tseem ceeb ntawm cov pob zeb thiab cov protein - ib yam dab tsi zoo li pob zeb nrog straw sib xyaw.
Otoconia nyob qhov twg?
Nyob rau hauv vertebrates lub utricular maculae nyob rau hauv pob ntseg puab muaj ib qho otolithic membrane thiabotoconia (cov khoom ntawm calcium carbonate) uas khoov cov plaub hau hauv cov kev taw qhia ntawm lub ntiajteb txawj nqus. Qhov no teb rau gravitational rub pab tsiaj tswj lawv kev sib npaug.
