Isihloko
I-methylene blue nezimo zendlala yegilo: ubufakazi nemibuzo ngemithi
I-methylene blue inemiphumela elinganisekayo ezinqubweni zebhayoloji ezihlobene nendlala yegilo ezinhlelweni zokuhlola. Lokho akuyiqinisekisi njengokwelashwa kokungasebenzi ngokwanele kwendlala yegilo, isifo sikaHashimoto, noma ukusebenza ngokweqile kwendlala yegilo. Ucwaningo oluhlolwe lapha alutholanga ukuhlolwa kokwelashwa okulawulwayo kubantu okubonisa ukuthi i-methylene blue ilungisa lezi zimo ngokuphepha noma inciphisa isidingo semithi yendlala yegilo.
Ngakho umbuzo osebenzayo ubanzi kunokuthi ingakwazi yini ukuthonya imetabolism. Iyiphi inqubo yendlala yegilo eguqukayo, kuluphi uhlelo lokuhlola, futhi ingabe lolo shintsho luyamsiza umuntu onesifo esithile esixilongiwe? Ucwaningo olukhona lunikeza izimpendulo ezihlukene emazingeni ahlukene ebhayoloji. Alusekeli ukushintsha imithi yendlala yegilo enqunyiwe kufakwe i-methylene blue.
Ukusebenza kwendlala yegilo kunezilinganiso eziningana ezihlukene
Indlala yegilo ikhiqiza ikakhulukazi i-thyroxine, noma i-T4, nenani elincane le-triiodothyronine, noma i-T3. Izicubu nazo ziguqula i-T4 ibe yi-T3. Indlala ye-pituitary ikhipha ihomoni evuselela indlala yegilo, noma i-TSH, etshela le ndlala ukuthi ikhiqize ihomoni. Amahomoni endlala yegilo ajikeleza egazini abuyisela umlayezo onciphisa leso sikhuthazo.
Njengoba i-American Thyroid Association ichaza ukuhlolwa kokusebenza kwendlala yegilo, izilinganiso zenani eliphelele lamahomoni zihlanganisa amahomoni aboshelwe kumaprotheni, kuyilapho izilinganiso zamahomoni amahhala zihlola ingxenye engaboshelwe. I-TSH ne-T4 yamahhala ndawonye zisiza ekuchazeni isimo sendlala yegilo; isifo se-pituitary singaguqula ubudlelwano obuvamile phakathi kwazo. Ngakho i-TSH ephansi iyodwa ayifakazeli ukusebenza okungcono kwendlala yegilo.
Isithombe sekhava sibonisa lobu budlelwano obuvamile bokubuyisana kwemiyalezo. Asibonisi indlela yokwelashwa nge-methylene blue esifakazelwe.
Okwalinganiswa izivivinyo ezigxile endlaleni yegilo
Ucwaningo lwango-1995 lwe-methylene blue ne-carbimazole kumagundane lwaqhathanisa izilwane zeqembu lokulawula, izilwane ezazithola i-methylene blue ekudleni, izilwane ezazithola umuthi ovimba indlala yegilo i-carbimazole, nezilwane ezazithola kokubili. Abacwaningi balinganisa i-T4 ne-TSH ejikeleza egazini, okuqukethwe kwamahomoni endlaleni yegilo nakwi-pituitary, isisindo sezitho, ne-molecule yokudlulisa imiyalezo i-cAMP.
I-methylene blue yandisa i-T4 ejikeleza egazini futhi yaphikisa ngokwengxenye ukwehla kwe-T4 okuhlobene ne-carbimazole. Yaphinde yavimbela ukwenyuka okukhulu kwe-TSH ejikeleza egazini okuhlobene ne-carbimazole. Lawa kwakungamagundane esilisa ohlobo lwe-Wistar, kuhlanganise nemodeli yokuvinjwa kwendlala yegilo okwakubangelwe ngamakhemikhali. Okutholakele kuthinta imiphumela ohlelweni lwamahomoni nokusebenzisana okungenzeka nomuthi, hhayi ukuthuthuka kwezimpawu kubantu abanesifo sendlala yegilo lapho amasosha omzimba ehlasela izicubu zomzimba. Isifinyezo socwaningo esifakwe kusizindalwazi asinikezi imininingwane eyanele yokuchayeka ukuze lesi sivivinyo siguqulelwe ohlelweni lokusebenzisa kubantu.
Isivivinyo esihlukile sango-1997 kumagundane esilisa sahlola i-methylene blue, i-estradiol benzoate, ne-acetylsalicylic acid, ngayinye yodwa nangezinhlanganisela. I-methylene blue yaphikisa ukwehla kwe-T4 ku-serum okuhlobene ne-aspirin, kodwa umphumela ohambisanayo ku-T3 wabonakala kwesinye kuphela sezivivinyo ezimbili. Umphumela wawuncike ehomonini elinganisiwe nasenhlanganiselweni esetshenzisiwe. Lokho kuyisisekelo esibuthakathaka sesithembiso esijwayelekile “sokuthuthukisa ukusebenza kwendlala yegilo.”
Ucwaningo lwakamuva lubuza umbuzo ohlukile. Ucwaningo lwango-2021 lokuhlunga amakhemikhali olwalusebenzisa i-iodotyrosine deiodinase yomuntu ekhiqizwe ngobuchwepheshe bokuhlanganisa izakhi zofuzo lwathola ukuthi i-methylene blue yavimbela ukusebenza ekuhlolweni kwe-enzyme, nge-IC50 engu-3.4 micromolar. I-IC50 iwukugxila kwento okukhiqiza uhhafu wokuvinjelwa okuphezulu ngaphansi kwezimo zokuhlolwa. Akukhona ukugxila egazini noma umthamo ophuzwa ngomlomo okunconyiwe.
I-iodotyrosine deiodinase, efushaniswa ngokuthi IYD, ibuyisa i-iodide emikhiqizweni esala ekukhiqizweni kwamahomoni ukuze iphinde isetshenziswe. Ihlukile kuma-iodothyronine deiodinase abandakanyeka ekwenzeni amahomoni endlala yegilo asebenze noma angasebenzi. Umphumela wokuvinjelwa kwe-IYD awubonisi ukuthuthuka kokuguqulwa kwe-T4 ibe yi-T3. Futhi lokhu kuhlolwa okwenziwa ngokuhlukaniswa nezinye izinqubo zomzimba akukwazi ukubikezela umphumela ophelele emahomonini omuntu osebenzisa i-methylene blue.
Okubonwe kubantu akuqinisekisi indlela yemiphumela engaguquguquki
Kukhona okungenani okuphawuliwe kokuqala emtholampilo okufanele kuhlukaniswe nemiphumela yezilwane. Esifinyezweni somhlangano we-American Thyroid Association wango-2025, i-Poster 418, abacwaningi bachaza owesilisa oneminyaka engu-43 owathola i-methylene blue ethinta umzimba wonke ngenxa yesimo sokushaqeka komzimba esasingaphenduli ekwelashweni. Indlala yegilo eluhlaza okwesibhakabhaka emnyama eyabonwa lapho kwenziwa imbobo kuqhoqhoqho yabangela ukuba kuhlolwe, kwatholakala i-TSH namahomoni endlala yegilo aphansi. I-T4 yamahhala yathuthuka ngokusetshenziswa kwe-levothyroxine.
Isiguli sasivele sinokungasebenzi ngokwanele kwendlala yegilo okwakungakavezi izimpawu ezicacile futhi saba nokugula okunzima kwezitho eziningi. Ababhali bacabangela isimo sokuguquka kwamahomoni endlala yegilo ngenxa yokugula okungaveli kule ndlala, kanye nomphumela ongase ubangelwe yi-methylene blue. Lesi sigameko esisodwa esethulwa engqungqutheleni asikwazi ukuqinisekisa imbangela, izinga lokuvela, noma indlela umzimba ophendula ngayo emikhiqizweni yabathengi ephuzwa ngomlomo. Futhi sivimbela incazelo enembile ekutheni ithi zonke izinguquko ezibikiwe zendlala yegilo zikhomba amazinga amahomoni aphezulu.
Kweminye imiphumela, umehluko ofanayo phakathi kwamamodeli neziguli uyasebenza ekuhlolweni kobufakazi kubantu ngezinzuzo ze-methylene blue.
Ithebula lobufakazi ngezimo nemithi
Funda umugqa ngamunye ubheke isifo esithile esixilongiwe noma umuthi. “Akukaqinisekiswa” kusho ukuthi ubufakazi obuhloliwe abuwuphenduli umbuzo wokwelashwa, hhayi ukuthi ukusebenzisana akunakwenzeka.
| Isimo noma umuthi | Ubufakazi obufanele | Okushiwo yibo esinqumweni |
|---|---|---|
| Ukungasebenzi ngokwanele okuvela endlaleni yegilo uqobo, kuhlanganise nesifo sikaHashimoto | Izinguquko zamahomoni kumagundane azibonisi ukulungiswa kokushoda kwamahomoni kubantu noma ukulimala okubangelwa ukuhlasela kwamasosha omzimba. | Ayikho indima eqinisekisiwe ye-methylene blue njengokubuyisela amahomoni noma indlela yokunciphisa inani lamahomoni adingekayo ukuze abuyiselwe. |
| Ukushoda kwamahomoni endlala yegilo ngemva kokususwa kwayo yonke | Ucwaningo lwezilwane lwaluhilela izicubu zendlala yegilo; aluzange luhlole ukubuyiselwa kwamahomoni ngemva kokususwa kwendlala yegilo ngokuphelele. | Umphumela endlaleni ekhona awukwazi ukubonisa ukubuyiselwa kwamahomoni abengakhiqizwa indlala engasekho. |
| Isifo sikaGraves noma amaqhuqhuva asebenza ngokweqile | Ayikho inzuzo yokwelashwa etholakele ocwaningweni olulawulwayo; ezinye izivivinyo kumagundane zathola i-T4 ejikeleza egazini ephakeme. | Ukwenyuka okungenzeka kwamahomoni bekungeke kube umphumela ohlosiwe wokwelashwa. Ungaphethi ngokuthi ifanele ukusetshenziswa ngenxa “yokweseka imetabolism.” |
| I-levothyroxine, noma ukwelashwa kokubuyisela amahomoni okuqukethe i-T3 | Alukho ucwaningo lokusebenzisana kwemithi kubantu olutholakele olulinganisa umphumela wokwengeza i-methylene blue. | Asikho isikhathi sokwehlukanisa ukusetshenziswa noma umthetho wokulungisa umthamo womuthi wendlala yegilo wale nhlanganisela osekelwe ebufakazini. |
| I-carbimazole | Ukuchayeka kwamagundane kokubili kwaphikisa ngokwengxenye ukwehla kwe-T4 okuhlobene nomuthi futhi kwavimbela ukwenyuka kwe-TSH. | Uphawu oluthile lokusebenzisana esivivinyweni ludinga ukunakwa; alulinganisi ubungozi ezigulini. |
| I-methimazole noma i-propylthiouracil | Isivivinyo se-carbimazole asizange sihlole ngokuqondile noma yimuphi wale mithi. | Unganikezi eminye imithi evimba indlala yegilo izinga elifanayo lomphumela noma uhlelo lwenhlanganisela oluphephile. |
| Ukuvuvukala kwendlala yegilo noma ukugula okubucayi okunemiphumela yokuhlolwa engajwayelekile | Ukuqhubeka kwesifo nokugula okunzima kungaguqula amaphethini amahomoni; isigameko sango-2025 sasinezincazelo ezinkulu ezihlukene ezingase zichaze okwenzekile. | Ukuchaza imiphumela kudinga isimo somtholampilo, imiphumela yangaphambilini, nomlando wokuchayeka. Ushintsho olulodwa ekuhlolweni kwaselabhorethri alukwazi ukukhomba imbangela. |
Ithebula lihlanganisa ucwaningo oluxoxwe ngenhla nencazelo ye-NIDDK yokungasebenzi ngokwanele kwendlala yegilo nokubuyiselwa kwamahomoni kanye nencazelo yayo yezimbangela nokwelashwa kokusebenza ngokweqile kwendlala yegilo. I-levothyroxine inikeza ihomoni eshodayo. Imithi evimba indlala yegilo inciphisa ukukhiqizwa kwamahomoni. Ukuvuvukala kwendlala yegilo kungadedela ihomoni egciniwe ngenxa yokuvuvukala, ngakho ukuphathwa kwalesi simo kwehlukile kokwendlala ekhiqiza ngokweqile. Imithi evimba ama-beta receptor inganciphisa izimpawu ezifana nokuthuthumela nokushaya kwenhliziyo ngokushesha ngaphandle kokumisa ukukhiqizwa kwamahomoni.
Ingabe ukusetshenziswa ngesikhathi sokuhlinzwa kwendlala yegilo kuyawuphendula umbuzo ngemithi?
Cha. I-methylene blue ingavela futhi ocwaningweni njengodayi wokuhlinza. Ngokwesibonelo, ucwaningo lokulandelela iziguli ezingu-56 ezazisuswa indlala yegilo lwafafaza udayi endaweni yokuhlinzwa ukuze kusizwe ukuhlukanisa izakhiwo ngokwendlela ezithatha ngayo umbala nangendlela umbala ophuma ngayo kuzo. Umbuzo walo wawuthinta ukuhlonza izakhiwo zomzimba ngesikhathi sokuhlinzwa.
Ukwenza izicubu zibonakale kuhlukile ekulungiseni ukukhiqizwa kwamahomoni endlala yegilo. Ucwaningo lukadayi wokuhlinza alukwazi ukuqinisekisa ukuthi ukugwinya i-methylene blue kwelapha isifo sendlala yegilo, futhi ukuhlonza izindlala ze-parathyroid kuthinta izindlala ezinomsebenzi ohlukile wamahomoni. Umtapo wocwaningo lwe-methylene blue uhlela ucwaningo ngokungenelela okwenzekile nangomphumela olinganisiwe.
Okufanele ulethe engxoxweni ngemithi
Letha imininingwane yesifo sendlala yegilo esixilongiwe, umuthi owusebenzisayo nesimo olungiswe ngaso, imiphumela yakamuva yokuhlolwa kwaselabhorethri, kanye nomkhiqizo othile we-methylene blue, inani, indlela yokuwusebenzisa, nesikhathi sokuwusebenzisa. Isimangalo sokuthi imikhiqizo emibili ingavele isetshenziswe kuhlukaniswe ngamahora ambalwa sidinga ubufakazi ngendlela yokusebenzisana kwayo; ukwehlukanisa izikhathi zokuyiphuza akuvimbeli ngokuzenzakalelayo umphumela womuthi othinta umzimba wonke.
Faka nemithi engahlobene nendlala yegilo. Ulwazi lokunqunywa kwe-PROVAYBLUE luxwayisa ngesimo esibucayi se-serotonin syndrome uma isetshenziswa nemithi ethinta i-serotonin nama-opioid, futhi luyenqabela ukusetshenziswa lapho kune-G6PD eshodayo ngenxa yengozi yokubhidlika kwamangqamuzana abomvu egazi. Leyo lebula yomuthi ojovwayo ayiqinisekisi uhlelo oluphephile lokusebenzisa ngomlomo isikhathi eside ezimweni zendlala yegilo. Ukubuka kabanzi ukuphepha kwe-methylene blue kuchaza lobu bungozi obubanzi.
Ukushaya kwenhliziyo okuzwakala kungajwayelekile okusanda kuqala, ukuthuthumela, noma ukungabekezeleli ukushisa kudinga ukuhlolwa kunokuba kuthathwe njengophawu lokuthi imetabolism ithuthukile. Umkhuhlane ohambisana nokudideka, ukungahlaliseki okukhulu, ukuqina kwemisipha, noma ukushaya kwenhliziyo okuya ngokuya kuba kubi ngokushesha ngemva kokuchayeka kudinga usizo lwezokwelapha oluphuthumayo. Lezi zimpawu zingafana nezokusabela okubucayi emithini nezifo zohlelo lwamahomoni. Ungashintshi ukwelashwa kokubuyisela amahomoni endlala yegilo, imithi evimba indlala yegilo, noma imithi yokwelapha ukudangala ukuze uvumelanise ukusetshenziswa kwe-methylene blue ngaphandle kwesiqondiso sochwepheshe wezokwelapha okunqumele imithi.