Inqaku
Imethylene blue neemeko zedlala lengqula: ubungqina nemibuzo ngamayeza
Imethylene blue ineziphumo ezinokulinganiswa kwiinkqubo zebhayoloji ezinxulumene nedlala lengqula kwiinkqubo zovavanyo. Oko akuyimiseli njengonyango lokungasebenzi ngokwaneleyo kwedlala lengqula (hypothyroidism), isifo sikaHashimoto, okanye ukusebenza ngokugqithiseleyo kwedlala lengqula (hyperthyroidism). Uphando oluhlolwe apha alufumananga luvavanyo lonyango olulawulwayo ebantwini olubonisa ukuba imethylene blue ilungisa ezi meko ngokukhuselekileyo okanye inciphisa imfuneko yamayeza edlala lengqula.
Ngoko ke umbuzo osebenzayo ubanzi kunokuba inokuchaphazela imetabolism na. Yeyiphi inkqubo yedlala lengqula etshintshayo, kweyiphi inkqubo yovavanyo, kwaye olo tshintsho luyamnceda na umntu onesifo esithile esifunyanisiweyo? Izifundo ezikhoyo zinika iimpendulo ezahlukileyo kumanqanaba ahlukeneyo ebhayoloji. Azithetheleli ukutshintsha amayeza edlala lengqula amiselweyo.
Ukusebenza kwedlala lengqula kunemilinganiselo emininzi eyahlukileyo
Idlala lengqula livelisa ikakhulu ithyroxine, okanye i-T4, kunye nomlinganiselo omncinane wetriiodothyronine, okanye i-T3. Izicubu nazo ziguqula i-T4 ibe yi-T3. Idlala lepituitary likhupha ihomoni evuselela idlala lengqula, okanye i-TSH, ethumela umqondiso wokuba idlala livelise ihomoni. Iihomoni zedlala lengqula ezijikeleza egazini zibuyisela umqondiso onciphisa olo vuselelo.
Njengoko i-American Thyroid Association ichaza uvavanyo lwedlala lengqula, imilinganiselo yehomoni iyonke ibandakanya ihomoni ebotshelelwe kwiproteni, ngoxa imilinganiselo yehomoni ekhululekileyo ihlola inxalenye engabotshelelwanga. I-TSH kunye ne-T4 ekhululekileyo zinceda ekutolikeni imeko yedlala lengqula; isifo sedlala lepituitary sinokutshintsha ubudlelwane obuqhelekileyo phakathi kwazo. Ngoko ke i-TSH ephantsi iyodwa ayingqini ukuba idlala lengqula lisebenza ngcono.
Umfanekiso weqweqwe ubonisa obu budlelwane buqhelekileyo bemiqondiso ebuyiselanayo. Awubonisi ndlela yonyango lwemethylene blue esele ibonakalisiwe.
Oko kwalinganiswa luvavanyo olujoliswe kwidlala lengqula
Isifundo sango-1995 ngemethylene blue necarbimazole kwiimpuku sathelekisa izilwanyana zeqela lolawulo, izilwanyana ezazifumana imethylene blue ekutyeni, izilwanyana ezazifumana iyeza elithintela idlala lengqula elibizwa ngokuba yicarbimazole, kunye nezilwanyana ezazifumana zombini. Abaphandi balinganisa i-T4 ne-TSH ezijikeleza egazini, umxholo weehomoni kwidlala lengqula nakwidlala lepituitary, ubunzima bamalungu, kunye nemolekyuli yokuthumela imiqondiso i-cAMP.
Imethylene blue yandisa i-T4 ejikeleza egazini yaza ngokuyinxenye yachasa ukwehla kwe-T4 okunxulumene necarbimazole. Yathintela nokunyuka okukhulu kwe-TSH ejikeleza egazini okunxulumene necarbimazole. Ezi yayiziimpuku ezingamaduna zohlobo lweWistar, kuquka nemodeli apho ukuthintelwa kwedlala lengqula kwabangelwa yikhemikhali. Iziphumo ziphathelele inkqubo yehomoni kunye nokunokwenzeka kokusebenzisana kwamayeza, hayi ukuphucuka kweempawu ebantwini abanesifo sedlala lengqula esibangelwa yinkqubo yokhuselo lomzimba ehlasela umzimba ngokwawo. Isishwankathelo esifakwe kwisalathiso asinikeli zinkcukacha zaneleyo malunga nokunikwa kwento evavanyiweyo ukuze olu vavanyo luguqulelwe kwinkqubo yokusetyenziswa ebantwini.
Olunye uvavanyo lwango-1997 kwiimpuku ezingamaduna lwavavanya imethylene blue, iestradiol benzoate, kunye neacetylsalicylic acid, nganye iyodwa kunye nemixube yazo. Imethylene blue yachasa ukwehla kwe-T4 kwi-serum okunxulumene neaspirin, kodwa isiphumo esihambelana noko kwi-T3 savela kolunye kuphela kwiimvavanyo ezimbini. Isiphumo sasixhomekeke kwihomoni elinganisiweyo nakumxube osetyenzisiweyo. Eso sisiseko esibuthathaka sesithembiso esibanzi sokuba “iphucula ukusebenza kwedlala lengqula.”
Uphando lwakutshanje lubuza umbuzo owahlukileyo. Isifundo sango-2021 sokuhlola iikhemikhali sisebenzisa i-iodotyrosine deiodinase yomntu eveliswe ngobuchule bokudibanisa imfuza safumanisa ukuba imethylene blue yathintela ukusebenza kuvavanyo lwe-enzayimu, nge-IC50 ye-3.4 micromolar. I-IC50 luxinaniso olubangela isiqingatha sokuthintelwa okuphezulu phantsi kweemeko zovavanyo. Ayiloxinaniso lwegazi olucetyiswayo okanye idosi ethathwa ngomlomo.
I-iodotyrosine deiodinase, efinyezwa ngokuthi yi-IYD, ibuyisela iodide ekusetyenzisweni ivela kwiimveliso ezisecaleni zokwenziwa kweehomoni. Yahlukile kwii-iodothyronine deiodinases ezibandakanyeka ekuvuseleleni okanye ekwenzeni iihomoni zedlala lengqula zingasebenzi. Isiphumo sokuthintelwa kwe-IYD asibonisi ukuphucuka kokuguqulwa kwe-T4 ibe yi-T3. Olu vavanyo lulodwa alunakuxela kwangaphambili isiphumo esipheleleyo kwiihomoni zomntu othatha imethylene blue.
Oko kubonwe ebantwini akumiselanga indlela enye yeziphumo
Kukho ubuncinane ingxelo yokuqala yoko kubonwe kwisigulana ekufanele yahlulwe kwiziphumo zezilwanyana. Kwisishwankathelo sentlanganiso ye-American Thyroid Association yango-2025, iPoster 418, abaphandi bachaza indoda eneminyaka engama-43 eyafumana imethylene blue esebenza kuwo wonke umzimba ngenxa yemeko yomothuko eyayingaphenduli kunyango. Ukubonwa kwedlala lengqula eliluhlaza okwesibhakabhaka lixubene nomnyama ngexesha letracheostomy kwakhokelela kuvavanyo olwafumanisa i-TSH neehomoni zedlala lengqula ziphantsi. I-T4 ekhululekileyo yaphucuka ngokusetyenziswa kwelevothyroxine.
Isigulana sasisele sine-hypothyroidism engabonakali ngeempawu ezicacileyo saza sagula kakhulu kumalungu amaninzi omzimba. Ababhali baqwalasela imeko yokutshintsha kweehomoni zedlala lengqula ngenxa yesigulo esingesosifo sedlala lengqula, kunye nesiphumo esinokubangelwa yimethylene blue. Le ngxelo inye yenkomfa ayinakho ukumisela unobangela, izinga lokwenzeka, okanye impendulo kwiimveliso ezithathwa ngomlomo ngabathengi. Ikwathintela nengxelo echanekileyo ekubangeni ukuba lonke utshintsho oluxeliweyo kwidlala lengqula lubonisa ukunyuka kwamanqanaba eehomoni.
Kwezinye iziphumo, ukwahlulwa okufanayo phakathi kweemodeli nezigulana kuyasebenza kuhlolo lobungqina ebantwini malunga neenzuzo zemethylene blue.
Itheyibhile yobungqina ngokweemeko namayeza
Funda umqolo ngamnye ngokwesifo esifunyanisiweyo okanye iyeza elithile. “Akumiselwanga” kuthetha ukuba ubungqina obuhloliweyo abuwuphenduli umbuzo wonyango, hayi ukuba ukusebenzisana akunakwenzeka.
| Imeko okanye iyeza | Ubungqina obufanelekileyo | Intsingiselo yoko kwisigqibo |
|---|---|---|
| I-hypothyroidism ebangelwa lidlala lengqula ngokwalo, kuquka isifo sikaHashimoto | Utshintsho lweehomoni kwiimpuku alubonisi ukulungiswa kokunqongophala kweehomoni ebantwini okanye komonakalo obangelwa kukuhlasela komzimba yinkqubo yawo yokhuselo. | Akukho ndima imiselweyo yemethylene blue ekubuyiseleni ihomoni okanye njengendlela yokunciphisa imfuneko yokuyibuyisela. |
| I-hypothyroidism emva kokususwa ngokupheleleyo kwedlala lengqula | Izifundo zezilwanyana zazibandakanya izicubu zedlala lengqula; azizange zivavanye ukubuyiselwa kweehomoni emva kokususwa ngokupheleleyo kwedlala lengqula. | Isiphumo kwidlala elikhoyo asinakubonisa ukubuyiselwa kweehomoni eziveliswa lidlala elingasekhoyo. |
| Isifo sikaGraves okanye amaqhuqhuva asebenza ngokugqithiseleyo | Akukho nzuzo yonyango ifunyenweyo kuvavanyo olulawulwayo; ezinye iimvavanyo kwiimpuku zafumanisa i-T4 ephezulu ejikeleza egazini. | Ukunyuka okunokwenzeka kwehomoni akuyi kuba sisiphumo sonyango esinqwenelekayo. Musa ukugqiba ukuba ifanelekile ngenxa yebango “lokuxhasa imetabolism.” |
| Ilevothyroxine, okanye unyango lokubuyisela iihomoni oluqulethe i-T3 | Akukho sifundo sokusebenzisana kwamayeza ebantwini sifunyenweyo esilinganisa isiphumo sokongeza imethylene blue. | Akukho sithuba sexesha phakathi kokuthathwa kwazo okanye umgaqo wokutshintsha idosi yeyeza ledlala lengqula osekelwe kubungqina kulo mxube. |
| Icarbimazole | Ukunikwa kwezi zinto zombini kwiimpuku kwachasa ngokuyinxenye ukwehla kwe-T4 okunxulumene neyeza kwaza kwathintela ukunyuka kwe-TSH. | Umqondiso othile wokusebenzisana ofunyenwe kuvavanyo ufuna ukuqwalaselwa; awulinganisi umngcipheko kwizigulana. |
| Imethimazole okanye ipropylthiouracil | Uvavanyo lwecarbimazole aluzange luvavanye ngokuthe ngqo naliphi na kula mayeza. | Musa ukunika amanye amayeza athintela idlala lengqula ubungakanani obufanayo besiphumo okanye inkqubo ekhuselekileyo yokuwadibanisa. |
| Ukudumba kwedlala lengqula okanye isigulo esiyingozi esineziphumo zovavanyo ezingaqhelekanga | Inkqubela yesifo nokugula kakhulu zinokutshintsha iipateni zeehomoni; imeko yango-2025 yayinezinye iinkcazelo ezibalulekileyo ezinokwenzeka. | Ukutolika kufuna imeko yesigulana, iziphumo zangaphambili, nembali yokusetyenziswa okanye yokunikwa kwezinto. Utshintsho olunye kuvavanyo lwaselabhoratri alunakuchonga unobangela. |
Le theyibhile idibanisa izifundo ezixoxwe ngasentla nenkcazelo ye-NIDDK nge-hypothyroidism nokubuyiselwa kweehomoni kunye nenkcazelo yayo ngoonobangela nonyango lwe-hyperthyroidism. Ilevothyroxine inika ihomoni engekhoyo. Amayeza athintela idlala lengqula anciphisa ukuveliswa kweehomoni. Ukudumba kwedlala lengqula kunokukhulula ihomoni egciniweyo ngenxa yokudumba, ngoko ukulawulwa kwako kwahlukile kokwedlala elivelisa ngokugqithiseleyo. Amayeza avala i-beta anokunciphisa iimpawu ezifana nokungcangcazela nokubetha kwentliziyo ngokukhawuleza ngaphandle kokumisa ukuveliswa kweehomoni.
Ngaba ukusetyenziswa ngexesha lotyando lwedlala lengqula kuyawuphendula umbuzo ngamayeza?
Hayi. Imethylene blue inokuvela kuphando njengedayi esetyenziswa kutyando. Umzekelo, isifundo esilandela izigulana ezingama-56 ezazisuswa idlala lengqula satshiza idayi kwindawo yotyando ukuze sincede ukwahlula izakhiwo ngokweendlela ezithatha ngazo umbala neendlela idayi ephuma ngayo kuzo. Umbuzo waso wawuphathelele ukuchongwa kwezakhiwo zomzimba ngexesha lotyando.
Ukwenza izicubu zibonakale kwahlukile ekulungiseni ukuveliswa kweehomoni zedlala lengqula. Isifundo sedayi yotyando asinakumisela ukuba ukuginya imethylene blue kunyanga isifo sedlala lengqula, kwaye ukuchongwa kwamadlala eparathyroid kuphathelele amadlala anomsebenzi owahlukileyo weehomoni. Ithala lophando ngemethylene blue licwangcisa izifundo ngokongenelelo olusetyenzisiweyo kunye nesiphumo esilinganisiweyo.
Oko kufuneka uze nako kwingxoxo ngamayeza
Yiza nesifo sedlala lengqula esifunyanisiweyo, iyeza olisebenzisayo ngoku nohlobo elilungiswe ngalo, iziphumo zamva nje zelebhu, kunye nemveliso ethile yemethylene blue, ubungakanani bayo, indlela nexesha ethathwa ngayo. Ibango lokuba iimveliso ezimbini zinokuthathwa nje zohlulwe ziiyure eziliqela lifuna ubungqina ngendlela ezisebenzisana ngayo; ukwahlula amaxesha okuziginya akuthinteli ngokuzenzekelayo isiphumo sekhemikhali yeyeza esisebenza kuwo wonke umzimba.
Quka namayeza anganxulumananga nedlala lengqula. Inkcazelo yokumiselwa kwe-PROVAYBLUE ilumkisa ngeserotonin syndrome eyingozi xa isetyenziswa namayeza achaphazela iserotonin kunye nee-opioid, yaye iyakwalela ukusetyenziswa xa kukho ukunqongophala kwe-G6PD ngenxa yomngcipheko wokutshatyalaliswa kweeseli ezibomvu zegazi. Loo nkcazelo yechiza elitofwayo ayimiseli inkqubo ekhuselekileyo yokuthathwa ixesha elide ngomlomo ngenxa yedlala lengqula. Isishwankathelo sokhuseleko lwemethylene blue sichaza le mingcipheko ibanzi.
Ukubetha kwentliziyo okungaqhelekanga okutsha, ukungcangcazela, okanye ukungakwazi ukumelana nobushushu kufuna ukuhlolwa kunokuba kucingelwe ukuba imetabolism iphucukile. Umkhuhlane ohamba nokudideka, ukungazinzi okukhulu, ukuqina kwezihlunu, okanye ukubetha kwentliziyo okuya kusiba mandundu ngokukhawuleza emva kokusetyenziswa ufuna uncedo lwezonyango olungxamisekileyo. Ezi mpawu zinokufana nezo zeziphumo eziyingozi zamayeza nezifo zenkqubo yeehomoni. Musa ukutshintsha unyango lokubuyisela iihomoni zedlala lengqula, unyango lokuthintela idlala lengqula, okanye amayeza okudakumba ukuze ulungelelanise ukusetyenziswa kwemethylene blue ngaphandle komyalelo wengcali yezonyango ekumisela amayeza.