Magazi ubongo chotchinga

Pakali pano, ndi chiwerengero kwambiri wa onse zotupa ya ubongo wa munthu kukwatira choipa. Ndipo mbali yaing'ono chabe ya zotupa mwachindunji chifukwa chapakati mantha matenda dongosolo.

Polingalira zina zochititsa mantha dongosolo ndi chidwi kwambiri ndi mfundo za sayansi view. Chinthu ndi kuti thunthu la chapakati mantha dongosolo ndi zovuta kumvetsa. Zimapanga maziko mitsempha yake ulusi ndi awo, wosiyana zimakhala za anthu ena, dongosolo.

Chimodzi mwa zinthu zazikulu za minofu ubongo ndi otsika mphamvu buluzi. Si kuti misempha zowonongeka musati buluzi, koma kuchira awo wosakwiya kwambiri ndipo amafuna zinthu zina.

Mbali ina ya ubongo ambiri, ndipo makamaka CNS ndi magazi ubongo chotchinga (BBB).

Si chinsinsi kuti ubongo ndi msana ndi wapadera madzi ofanana mu zikuchokera kuti ndi thupi saline njira, koma kumasiyana ndi ochititsa tuzigawo twa zosiyanasiyana zomanga thupi ndi micronutrients. Cerebrospinal (kapena cerebrospinal) madzi aumbike kwa magazi ndi lymph pansi wapadera "fyuluta" imene imagwira ntchito ya magazi ndi ubongo chotchinga.

maselo Special mezhendotelialnymi ojambula kupewa malowedwe a maselo magazi mu madzimadzi. Masiku ano, asayansi mokwanira asanaganize mmene lamulo la mphamvu kusefera chotchinga, koma amadziwika kuti mphamvu umatha kusintha ndi ntchito kagayidwe kachakudya ubongo. Komanso, magazi-ubongo chotchinga ali osiyana zigawo zosiyana za ubongo zomwe zimatipatsa kusinthasintha mphamvu kwa zosefera zakumwa (magazi ndi lymph).

Kafukufuku wasonyeza kuti ena zinthu umalowa mu BBB ambiri Mitsempha mbali zawo zina - ya zida za lymphatic dongosolo, ndi ena angafike kwa atolankhani awiri pa liwiro. En, ndi dongosolo lapadera kudzikonda unexplored mpaka zikuchokera amapereka yobereka zinthu cerebrospinal madzimadzi mu ndalama zomwe ndi zofunika chapakati mantha dongosolo. Izi zimachitika ndi lamulo buku la gawo madzi, kuchuluka ndi zikuchokera mapuloteni, komanso zikuchokera ayoni ndi (yotsirizira ankaimira potaziyamu ndi sodium wochuluka).

N'chifukwa chiyani tiyenera magazi ndi ubongo chotchinga?

Makamaka kanthu ake walangizidwa malo akutali ndi kulemekeza chapakati mantha dongosolo, komanso kuti imagwira ntchito ndi zoteteza, kuteteza malowedwe mu mabakiteriya CSF ndi mavairasi kwa mtsinje wa magazi kapena lymph. Nkofunika kuzindikira kuti likhoza monyanyira mu ntchito kwa BBB zotsatira zake kwambiri. Choncho, mabakiteriya atagonjetsa mu cerebrospinal madzimadzi patsogolo kwa meninjaitisi, encephalitis ndi kutupa ena a meninges ndipo zimakhala ubongo.

maphunziro angapo wochitidwa ndi ndodo, ndipo chimapangitsa n'zotheka zimakhudza bandiwifi wa magazi ubongo chotchinga kukonzekera zosiyanasiyana. Kuphatikiza apo, mankhwala ntchito kuti mupeze kale wayamba mbali. Masiku ano, madokotala odziwika bwino zimene mankhwala ndi mmene bwanji BBB. Komanso tinaphunzira kugwiritsa ntchito katundu izi kwa phindu la munthu.

Choncho, mwazi ubongo chotchinga angapo a ntchito zofunika kwambiri kuti zithandize chikhalidwe mulingo woyenera wa ziwalo za chelvoechesokgo thupi. Komabe, tiyenera kuona kuti ziwalo za chotchinga kuti akhale akathane zoipa ndi zikhalidwe zosiyanasiyana pathological, ichi ndi chifukwa chake n'kofunika kwambiri kumvetsetsa ndi tikambirane kupewa ndi kuchiza matenda.