Inyandiko
Methylene blue n'ububyimbirwe: icyo ibimenyetso bya siyansi bipima
Methylene blue ishobora kugabanya ibimenyetso bimwe by'ububyimbirwe mu buryo bw'igerageza. Ibyo ntibiyigira umuti rusange w'ububyimbirwe mu bantu. Ubushakashatsi busuzumwa hano bugaragaza ko igira ibikorwa mu mubiri, hamwe n'inyungu zimwe mu nyamaswa n'ibyagaragaye mu bantu bike kandi bireba imimerere yihariye cyane. Ntibugaragaza ko gufata methylene blue bigabanya ibimenyetso bya buri munsi byitirirwa “ububyimbirwe buhoraho.”
Ikibazo cy'ingirakamaro kirushijeho gusobanuka ni iki: ni iyihe nzira y'ububyimbirwe yahindutse, mu buhe buryo bw'igerageza, kandi iyo mpinduka yaba yaratumye habaho igisubizo gifitiye umurwayi akamaro? Ubwinshi bwa sitokine, imiterere y'akaremangingo, n'igihe ubuvuzi mu ishami ry'indembe bumara bisubiza ibibazo bitandukanye. Isuzuma ryacu ryagutse ry'inyungu za methylene blue mu bushakashatsi ku bantu rihuza ibyo byagaragaye n'ubundi buryo bwo kuyikoresha mu buzima bwagiye busabwa.
Ni iki gifatwa nk'igisubizo cyo kugabanya ububyimbirwe?
Ububyimbirwe buhuza uko umubiri witabira ubwandu n'ibikomere. Bushobora kugira uruhare mu kwangiza umubiri, ariko bimwe mu bikorwa by'ububyimbirwe bifasha no kwirinda no gusana ibyangiritse. Bityo, kuvuga ngo “ububyimbirwe bwagabanutse” ntibihagije hatavuzwe aho buri, icyabuteye, igihe bwapimwe n'igisubizo cyabonetse.
Sitokine ni poroteyine itanga ubutumwa. Abashakashatsi bashobora gupima ingano yayo iboneka mu mazi yororerwamo uturemangingo cyangwa mu maraso. Bashobora ahubwo gupima urugero rw'ikorwa rya anzime ijyanye n'ububyimbirwe, uko poroteyine itanga ubutumwa yakangutse, cyangwa impinduka mu miterere y'akaremangingo k'ubudahangarwa. Ibi bipimo bishobora kugaragaza igikorwa cy'umuti biterekanye ko ububabare, umunaniro, ubushobozi bwo gutekereza cyangwa ubukana bw'indwara bigabanuka.
Lipopolysaccharide, ikunze kwitwa LPS mu magambo ahinnye, ni igice kigize bagiteri gikoreshwa mu gutera ububyimbirwe. Ubushakashatsi bwinshi kuri methylene blue bukoresha iyi mbarutso igenzurwa. Gutera ububyimbirwe hakoreshejwe LPS ni ingirakamaro mu kugerageza uburyo ikintu gikora, ariko ntibisubiramo buri kiranga indwara idakira yo mu bantu. Iyi mbogamizi ibaho no mu gihe umuti utangiwe hamwe n'imbarutso: gukumira impinduka zatewe mu igerageza bitandukanye no guhindura inzira y'indwara yamaze kwigaragaza.
Imbonerahamwe y'ibimenyetso bya siyansi: uburyo bw'igerageza, imbarutso, igipimo n'akamaro
Iyi mbonerahamwe ivuga muri make ubushakashatsi bw'umwimerere bwatoranyijwe. Buri murongo ukomeza gutandukanya ibyo abashakashatsi bapimye n'icyo umusomyi ashobora kwifuza ko ibyagaragaye bisobanura.
| Ubushakashatsi n'uburyo bw'igerageza | Imbarutso y'ububyimbirwe cyangwa imimerere | Igipimo cyasuzumwe n'ibyagaragaye | Akamaro mu buvuzi |
|---|---|---|---|
| Huang na bagenzi be, 2015: makorofaje z'imbeba n'imbeba | LPS na/cyangwa interferon-gamma mu turemangingo twororewe muri laboratwari; endotoxine mu maraso y'imbeba | Igabanuka ry'ikorwa rya nitric oxide synthase ishobora gukangurwa, cyangwa iNOS | Bishimangira ko hari igikorwa kuri anzime ijyanye n'ububyimbirwe; ntibipima ibimenyetso by'indwara mu bantu |
| Ahn na bagenzi be, 2017: makorofaje n'uturemangingo tw'abantu twa THP-1 | Gukangura inflammasome nyinshi mu buryo bw'igerageza | Igabanuka ry'irekurwa rya IL-1β n'ibikorwa bijyanye na inflammasome | Ibimenyetso by'uburyo ikora; umurongo w'uturemangingo tw'abantu si igerageza ku barwayi |
| Ahn na bagenzi be, 2017: imbeba | Kugerageza hakoreshejwe LPS; irindi gerageza hakoreshejwe Listeria | Ubushobozi bwo kurokoka bwiyongereye nyuma ya LPS, na IL-1β iragabanuka mu mwanya ukikijwe na peritoneum mu buryo bw'igerageza | Birimo igisubizo ku nyamaswa kirenze igipimo cyo mu mubiri; ntibigaragaza ko abantu barushaho kurokoka |
| Li na Ying, 2023: imbeba | Inshinge za LPS zatanzwe kenshi mu minsi itatu | Igabanuka rya IL-6 muri serumu, igabanuka ry'ikangurwa rya STAT3 mu bwonko no mu ruhu, n'igabanuka ry'ibiro rito | Bigaragaza itangwa ry'ubutumwa n'uko inyamaswa yose yitabira; nta gipimo cy'ibimenyetso by'indwara mu bantu cyangwa icy'ituza ry'indwara |
| Aburel na bagenzi be: ingero z'ingingo z'ibinure bijyanye n'umutima n'imiyoboro y'amaraso mu bantu | Ingingo zafashwe mu gihe cyo kubaga abarwayi 25 bafite kunanirwa k'umutima; gushyirwa mu mimerere ya laboratwari, harimo no kugerageza hakoreshejwe serotonin | Igabanuka ry'ikorwa rya monoamine oxidase n'ibipimo by'iyangirika riterwa n'ibikorwa bya okisidasiyo | Bifite akamaro ku ngingo z'abantu, ariko iyangirika riterwa na okisidasiyo ntirisimburana n'ububyimbirwe, kandi abarwayi ntibavuwe muri iri gerageza |
| Stelmashook na bagenzi be, 2026: uturemangingo twa gliya two mu gice cyo hanze cy'ubwonko bw'imbeba twororewe muri laboratwari | Guhura na LPS mu masaha 24 | Hakoreshejwe methylene blue, mikorogiliya zagize amashami menshi n'umubyimba w'umubiri w'akaremangingo muto kurusha igihe hakoreshejwe LPS yonyine | Igisubizo cyerekeye imiterere, kitagira ibimenyetso by'uko kwibuka, imyitwarire cyangwa ibimenyetso by'indwara mu bantu byateye imbere |
| Memis na bagenzi be, 2002: abarwayi 30 bafite sepsis ikomeye | Gushyirwa mu mutsi mu gihe cy'amasaha atandatu, bigereranywa n'umuti w'amazi arimo umunyu mu igerageza ryagabanyije abarwayi mu matsinda mu buryo bwa tombola | Nta ngaruka zikomeye mu buryo bw'imibare ku bipimo bya sitokine byapimwe muri plasma | Igerageza ritaziguye ku bantu ntiryemeje igabanuka rya sitokine muri ubwo buryo bw'igerageza |
| Ibarra-Estrada na bagenzi be, 2023: abarwayi 91 bafite ihungabana ry'umubiri rituruka kuri sepsis basuzumwe | Methylene blue ishyirwa mu mutsi, igereranywa na placebo, byiyongera ku buvuzi bw'indembe | Igihe cyo gukoresha imiti izamura umuvuduko w'amaraso cyaragabanutse; sitokine ntizapimwe | Igisubizo cyihariye cyo mu buvuzi, ariko uburyo cyabonetse ntibwemejwe no gupima ibimenyetso by'ububyimbirwe |
Itandukaniro ritatu rihindura uko ibyagaragaye bisobanurwa
Kugabanuka kw'itangwa ry'ubutumwa ntibivuga byanze bikunze imikorere myiza kurushaho
Ubushakashatsi bwa 2015 kuri iNOS bwasuzumye uko methylene blue yagabanyije ikorwa rya anzime igira uruhare mu mikorere ya nitric oxide mu mubiri. Ibi bifasha gusobanura igikorwa umuti ushobora kugira. Ntibyemeza ko kugabanya iyo anzime byafasha buri muntu ufite ikibazo cy'ububyimbirwe.
Mu buryo nk'ubwo, ubushakashatsi bwo mu 2023 ku mbeba bwahuje impinduka za IL-6 mu maraso n'impinduka mu itangwa ry'ubutumwa mu ngingo. Igisubizo cyabwo ku kugabanuka kw'ibiro cyongeraho amakuru y'ingirakamaro ku nyamaswa yose. Nyamara, ibiro mu gihe cy'igerageza riteza ikibazo gitunguranye ntibihwanye n'ubushobozi bwo gutekereza, imibereho myiza cyangwa gukomeza kugenzura indwara idakira. Inyandiko irambuye kuri inflammasome, IL-6 na STAT3 isobanura izo nzira itazifata nk'ibisimbura ibisubizo ku buzima.
Uko akaremangingo kagaragara ni igipimo kimwe
Mikorogiliya ni uturemangingo tw'ubudahangarwa two mu rwungano rw'imyakura rw'ibanze. Amashami yatwo n'imibiri yatwo bishobora guhinduka bitewe n'ibidukikije. Mu bushakashatsi bwo mu 2026 ku turemangingo twororewe muri laboratwari, methylene blue yahinduye uko uturemangingo twahuye na LPS twagaragaraga, itwegereza imiterere y'uturemangingo two mu itsinda ry'igereranya.
Ishusho yo ku gifuniko yerekana iri gereranya mu buryo bw'igishushanyo. Si ifoto yafashwe na mikorosikopi cyangwa ishusho isubiramo ibipimo by'igerageza. Kugira amashami menshi ntibyemeza ubwabyo ko akaremangingo karinda uturemangingo tw'imyakura, gakuraho neza ibitera indwara cyangwa gateza imbere imikorere y'ubwonko. Ibyo bisaba ibindi bipimo. Isuzuma rya mikorogiliya, asitorosite n'ububyimbirwe risesengura iyi mimerere mu buryo burambuye kurushaho.
Urugingo rw'umuntu si umuntu wahawe ubuvuzi
Ubushakashatsi ku binure bijyanye n'umutima n'imiyoboro y'amaraso bwakoresheje ingero zafashwe ku bantu, bityo bukagira akamaro mu gusobanukirwa imikorere y'umubiri w'umuntu. Abashakashatsi bashyize izo ngero muri methylene blue hanze y'umubiri mu gihe cy'amasaha 24. Ubu buryo bushobora kwemeza uko ingingo zafashwe zitabira, ariko ntibunyura mu kwinjizwa k'umuti mu mubiri, ikwirakwizwa ryawo, ihindurwa ryawo mu mubiri n'imikoranire hagati y'ingingo.
Bwanapimye iyangirika riterwa n'ibikorwa bya okisidasiyo n'ikorwa rya monoamine oxidase. Izo nzira zishobora gukorana n'ububyimbirwe, ariko igabanuka ry'amoko ya ogisijeni akora cyane si gihamya ubwaryo y'igabanuka ry'indwara ijyanye n'ububyimbirwe. Iri tandukaniro ni ingenzi mu gusoma ubushakashatsi ku turemangingo, inyamaswa, ingingo n'ubuvuzi.
Icyo ubushakashatsi bwo mu buvuzi bugaragaza n'icyo butagaragaza
Sepsis itanga uburyo bwo kugerageza mu buryo butaziguye igitekerezo cy'uko methylene blue igomba kugabanya sitokine z'ububyimbirwe mu bantu. Igerageza rito kuri sepsis ikomeye, ryagabanyije abarwayi mu matsinda mu buryo bwa tombola, ntiryabonye ingaruka zikomeye mu buryo bw'imibare kuri sitokine. Ibyo ntibyemeza ko nta ngaruka zishobora kubaho mu buryo ubwo ari bwo bwose bwo gutanga umuti cyangwa mu mimerere iyo ari yo yose. Ariko bigaragaza impamvu ibyiza byagaragaye mu turemangingo bidashobora gufatwa nk'ibisubizo bireba abantu bose.
Mu igerageza ryo mu 2023 ku ihungabana ry'umubiri rituruka kuri sepsis, igihe cyo hagati cyo guhagarika imiti izamura umuvuduko w'amaraso cyari amasaha 69 ku bahawe methylene blue n'amasaha 94 ku bahawe placebo. Iyo miti ifasha gukomeza umuvuduko w'amaraso. Nta tandukaniro rikomeye mu buryo bw'imibare ryabayeho ku mpfu, kandi ubushakashatsi bwari buto cyane ku buryo butashoboraga gutanga umwanzuro kuri icyo gisubizo. Abanditsi bavuze mu buryo bweruye ko batapimye sitokine kugira ngo bemeze uburyo umuti wakoze. Bityo, inyungu ku itembera ry'amaraso mu buvuzi bw'indembe ntishobora kwemeza ko uvura ububyimbirwe muri rusange, cyangwa gutanga impamvu yo kwimurira ubwo buryo bwo gutanga umuti mu ikoreshwa ryo mu rugo.
Ni iki cyashyigikira ibyemezo byagutse ku nyungu z'ubuzima?
Icyemezo cyemeza neza gisaba itsinda ry'abarwayi risobanuwe, icyo kugereranya kiboneye, uburyo bwo gutegura no gutanga umuti bushobora gusubirwamo, n'igisubizo nk'ibimenyetso by'indwara, imikorere, ubukana bw'indwara cyangwa ingorane ziyikomokaho. Gukurikirana bigomba kumara igihe gihagije kugira ngo hasuzumwe inyungu ivugwa n'ingaruka zayo mbi. Igipimo cyo mu mubiri cyerekana impinduka nziza gishobora gushyigikira ibyo bimenyetso bya siyansi; ntigishobora kubisimbura.
Ibyemezo byerekeye MCAS no kutihanganira histamine bisaba ibimenyetso byihariye kuri izo ndwara. Ubushakashatsi rusange kuri sitokine ntibushobora kwemeza ko methylene blue igenzura ibimenyetso biterwa n'uturemangingo twa mast.
Gufata igikorwa cyagaragaye mu igerageza nk'ubuvuzi butekanye na byo bishobora kugira ingaruka. Amakuru y'ubu yo muri Amerika agenewe abandika umuti wa ProvayBlue ushyirwa mu mutsi avuga ko ukoreshwa kuri methemoglobinemia umuntu aba yaragize atarayivukanye, aburira ku ndwara ikomeye iterwa na serotonin igihe ukoreshejwe hamwe n'imiti ikora kuri serotonin na opiyoyide, kandi abuza kuwukoresha mu gihe cya G6PD idahagije kubera ibyago by'ibura ry'amaraso riterwa no gusenyuka kw'uturemangingo dutukura. Igitekerezo cy'uko wagabanya ububyimbirwe ntigikuraho izi ngaruka z'umuti.
Ku basomyi basuzuma ibivugwa ku gicuruzwa, musabe ubushakashatsi ku barwayi bushyigikira igisubizo cyasezeranyijwe. Niba ibimenyetso bya siyansi birangirira kuri sitokine, urugero rw'urugingo cyangwa ifoto y'akaremangingo, inyungu ivugwa mu buvuzi iba itaremezwa.