Inqaku
Imethylene blue ekwii-liposome: uphando lokuhanjiswa namabango ajoliswe kubathengi
“Ekwii-liposome” ichaza isakhiwo sokuhanjiswa. Loo nto iyodwa ayiqinisekisi ukufunxwa ngcono, ukuhanjiswa ngcono engqondweni, okanye inzuzo yempilo. Kwimethylene blue, uphando olupapashiweyo ngezithwali luquka imifuniselo yaselabhoratri yephotodynamic kunye nophononongo oluncinci lwezonyango lokusetyenziswa eluswini. Ezo ziphumo zinxulumene nomxube othile, indlela yokuwusebenzisa, nesiphumo esavavanywayo.
Ngoko umbuzo oluncedo xa kuthengwa ungqalile: bubuphi ubungqina obunxulumanisa le mveliso igqityiweyo nenzuzo ebangwayo kwileyibhile yayo? Uphononongo olubonisa iziphumo ezinamandla ngakumbi ezivuselelwa kukukhanya ngokuchasene ne-biofilm alunakuphendula ukuba ingakanani imethylene blue engena egazini lomntu emva kokuginya ulwelo olungahambelaniyo nolo phononongo.
Oko kuqulethwe yi-liposome
I-liposome yingxowanana encinci enenwebu eyenziwe ngamaleko amabini elipid, ngamanye amaxesha inamaleko amabini ongezelelweyo ajikeleze umbindi omnye. Amanzi akwicandelo elisembindini. Iimolekyuli zechiza zinokunxulumana neendawo ezahlukeneyo zesakhiwo ngokweempawu zazo zekhemistri nendlela yokulungiselela. Elinye ichiza lisenokuhlala ngaphandle kweengxowanana.
Umfanekiso weqweqwe ubonisa isithwali esenziwe lula esinamaleko amabini kuphela, namachaphaza amela imethylene blue ngaphakathi nangaphandle. Ubonisa amacandelo, hayi ubungakanani bechiza elithwelweyo obulinganisiweyo okanye indlela iimolekyuli ezisasazeke ngayo kwimveliso yorhwebo.
Ilecithin kuluhlu lwezithako ayibobungqina obaneleyo bokuba kukho ii-liposome ezizinzileyo ezithwele ichiza. Umenzi kufuneka aqinisekise isakhiwo aze alinganise ubungakanani bechiza elisithwalayo. Isikhokelo se-FDA ngeemveliso zamachiza ee-liposome sahlula ii-liposome kwimixube yechiza nelipid engengazo iingxowanana, kwaye sithatha ukuhlolwa kweempawu zokwenziwa kunye nefamakokinetiki ebantwini njengemibuzo eyahlukeneyo. Esi sisikhokelo sezicelo zokuvunywa kwamachiza, hayi uphawu lokuvunywa kweemveliso ezisebenzisa igama elithi “liposomal.”
Ezinye izithwali ziinkqubo ezahlukileyo. Ii-cyclodextrin ziikhabhohayidrethi ezimile okwesangqa ezisetyenziselwa ukwenza imixube ebophelelekileyo yamachiza; iinanoparticle zepolymer zisebenzisa isithwali esisekelwe kwipolymer. Akukho nanye kuzo eba yi-liposome ngenxa yokuba incinci okanye iqulethe imethylene blue.
Imilinganiselo emihlanu exhasa ibango elinentsingiselo ngomxube
Inkqubo yeNational Cancer Institute yokuhlola iimpawu zee-liposome yahlula ukubunjwa, isakhiwo esibonakalayo, nomxholo wechiza. Ifayile yolwazi ngemveliso eluncedo kufuneka yenze lo mahluko ulandelayo ucace:
- Ubungakanani nokusasazeka kobungakanani. Idayamitha engumndilili ifihla ukuba amasuntswana ahluka kangakanani. Isalathisi sepolydispersity sinceda ekuchazeni loo mahluko. Imilinganiselo yobungakanani iyodwa ayiqinisekisi ubukho bamaleko amabini elipid.
- Ukubunjwa nokumila kwesithwali. Ukuchongwa kweelipid, umlinganiselo wazo, nemifanekiso yesakhiwo kunceda ukwahlula iingxowanana kwezinye iimbumba zamasuntswana. Uluhlu lwezithako lomthengisi alunakuthatha indawo yemilinganiselo yomxube ogqityiweyo.
- Imethylene blue iyonke, ekhululekileyo, nevalelwe ngaphakathi. Uxinano olupheleleyo luphendula ukuba ingakanani idayi ekhoyo. Ukusebenza kakuhle kokuvalelwa ngaphakathi kuchaza iqhezu elinxulumene nenkqubo yokufakwa kwechiza. Ubungakanani bechiza elithwelweyo buchaza umxholo wechiza xa uthelekiswa nezinto ezenza isithwali; ingxelo kufuneka ichaze isiseko sokubala kwayo.
- Ukukhululwa nokuvuza. Abaphandi kufuneka balinganise ukuba ichiza liyaphuma na kwisithwali, liphuma ngokukhawuleza kangakanani, naphantsi kweziphi iimeko zovavanyo. Isiphumo sokukhululwa kwisinyibilikisi esinye esilawula i-pH asingomlinganiselo wokufunxwa emzimbeni womntu.
- Ukuzinza ekuhambeni kwexesha. Ukudibana kwamasuntswana, ukuvuza kwechiza, nokuwohloka ngokwekhemikhali ziindlela ezahlukileyo zokusilela. Iziphumo kufuneka zichaze iqondo lobushushu, ukuchanabeka ekukhanyeni, isikhongozeli, kunye nexesha elihambelana nebango lokugcinwa kwemveliso.
Umzekelo ocacileyo ubonisa isizathu sokuba oku kubalulekile. Kuphononongo lwee-liposome luka-2019 olwalusebenzisa iiseli zomhlaza webele, ubungakanani bamasuntswana bahlala kufuphi ne-160 nanometers kwiintsuku eziyi-14 zokubekwa esweni. Umfuniselo owahlukileyo wokukhululwa wafumanisa ukuba malunga ne-95% yemethylene blue yaphuma kwii-liposome kwiiyure ezisibhozo. Ukuzinza kwedayamitha yamasuntswana nokuqhubeka kokugcinwa kwechiza ziimpawu ezahlukileyo. Akukho namnye kule milinganiselo owawusisiphumo sokufunxwa ebantwini emva kokuthathwa ngomlomo.
Ukuthelekiswa kweenkqubo zokuhanjiswa: imilinganiselo xa ithelekiswa neziphumo
Olu thelekiso lwahlula umbuzo ngesithwali kumbuzo webhayoloji. Ikholamu yemilinganiselo ichonga iimvavanyo ezifanelekileyo, hayi ibango lokuba lonke uphononongo oludwelisiweyo lwagqiba lonke uvavanyo.
| Inkqubo yokuhanjiswa | Imilinganiselo yomxube ebalulekileyo | Isiphumo esaphononongwa ngokwenene kuphando olukhankanyiweyo | Oko ingenakukuqinisekisa ngemveliso ethengiswa ezivenkileni ethathwa ngomlomo |
|---|---|---|---|
| Imethylene blue esemanzini engenasithwali se-liposome | Ukuchongwa, uxinano, ukungcola, ukuzinza ngokwekhemikhali | Ubungakanani obufikelela kwiplasma yabantu emva kokunikwa ngomlomo nangomthambo | Ukufunxwa kwemveliso eyahlukileyo okanye inzuzo yezonyango ekusetyenzisweni kwayo |
| Imethylene blue kwiingxowanana ezinamaleko amabini elipid | Ukusasazeka kobungakanani, ukubunjwa kweelipid, ichiza elikhululekileyo nelivalelwe ngaphakathi, ukukhululwa, ukuzinza xa igcinwa | Ukungena kwiiseli, iziphumo kwiiseli ezivuselelwa kukukhanya, okanye iziphumo kwii-biofilm zomngundo kwizifundo zaselabhoratri | Ukufunxwa ngcono kwinkqubo yokwetyisa okanye ukuphucuka kwezakhono zokucinga |
| Imethylene blue ekwii-liposome kwihydrogel efakwa eluswini | Iimpawu zeengxowanana, ukukhululwa kwijeli, indawo ehlala kuyo eluswini | Amanani ezilonda zamaqhakuva novavanyo lwezonyango kulingo oluncinci lwephotodynamic olwenziwa eluswini | Iinzuzo zokuginya ii-liposome, okanye ukusebenza ngaphandle kwenkqubo yonyango ngokukhanya |
| Imethylene blue ene-beta-cyclodextrin | Ukuchongwa komxube obophelelekileyo/isithwali, ukunxulumana kwechiza, uxinano, ukuzinza | Amanani eentsholongwane eziphilayo kwi-biofilm yomlomo yaselabhoratri evuselelwe kukukhanya okubomvu | Ukusebenza kwee-liposome, ukufunxwa kusasazeke emzimbeni, okanye ukunyangwa kosulelo emntwini |
| Imethylene blue kwiinnanoparticle zepolycaprolactone | Ukubunjwa kwepolymer, ubungakanani, umthamo wechiza elithwelweyo, ukukhululwa, iimpawu zomphezulu | Ukungena eluswini nokonakala kweeseli zomhlaza okubangelwa kukukhanya kuphando lokuhanjiswa eluswini olubandakanya i-ultrasound | Ukusebenza konyango lomhlaza ebantwini okanye ukufumaneka emzimbeni kwee-liposome ezithathwa ngomlomo |
Umzekelo wepolymer uvela kuphando oludibanisa iinanoparticle zepolycaprolactone nesonophoresis, indlela yokuhanjiswa encediswa yi-ultrasound. Ubonisa isizathu sokuba izinto ezenza isithwali kunye nongenelelo oluhamba naso zibalulekile.
Oko kuboniswa ngokwenene zizifundo zemethylene blue
Kuphononongo lwe-Candida auris kusetyenziswa ii-liposome olupapashwe kwi-intanethi ngoDisemba 2025, abaphandi bathelekisa izithwali ezineentlawulo zombane ezivumayo nezingavumiyo nemethylene blue ekhululekileyo. Imixube yee-liposome yaphucula ukuhanjiswa ngaphakathi kwii-biofilm zaselabhoratri neziphumo ezichasene ne-biofilm ezivuselelwa kukukhanya. Noko ke, olona xinano luphantsi lubulala iiseli zomngundo ezidadayo ngokukhululekileyo lwalulingana nolwedayi ekhululekileyo. Inzuzo eyayibonakala yayixhomekeke kwimeko yeentsholongwane nakwisiphumo esilinganiswayo.
Iphepha elifanayo laxela ukusebenza kakuhle kokuvalelwa ngaphakathi okumalunga ne-11% ne-14% kwimixube emibini. Iimpawu zayo ezibonakalayo ezalinganiswayo zahlala zingatshintshanga kangangeentsuku eziyi-30 xa igcinwe efrijini, ebumnyameni, kwaza ukungazinzi kwabonwa kamva. Ezi ziziphumo eziluncedo kuphuhliso, hayi iinkcukacha ezinokuthi zabelwe ibhotile evela komnye umenzi.
Uphononongo lwe-beta-cyclodextrin luka-2021 lwasebenzisa i-biofilm yomlomo eneentlobo ezininzi, eyakhuliswa kwiipleyiti ezinemingxuma emincinci kangangeeyure eziyi-24. Unyango lwadibanisa isithwali semethylene blue nokukhanyiswa ngelaser ebomvu okanye nge-LED, lwaza lwavavanya amanani eentsholongwane eziphilayo. Apha “i-biofilm yomlomo” ithetha iints holongwane ezinxulumene nomlomo. Ayithethi ukuba umxube waginywa okanye ukuba ukufumaneka kwawo emzimbeni emva kokuthathwa ngomlomo kwalinganiswa. Lo mahluko ubalulekile ekutolikeni uphando lwe-biofilm evuselelwa kukukhanya.
Ubungqina ngezithwali ebantwini abukho buphelele ukungabikho. Uphononongo oluncinci lwamaqhakuva, olunokwabiwa okungacwangciswanga nolufihlelo kubaphandi lwanyanga izigulana eziyi-13 ngehydrogel yemethylene blue ekwii-liposome kunye nonyango lwephotodynamic. Lwaxela ukuphucuka kwamanani ezilonda nakuvavanyo lwezonyango emva kweeseshoni zonyango ezimbini, ngokulandelelwa okwaqhubeka ukuya kwiiveki eziyi-12. Umsebenzi owahlukileyo wokwenziwa komxube waphonononga ukukhululwa nokujoliswa kwisikhumba seempuku. Inani elincinci lezigulana, indlela yokusetyenziswa eluswini, nongenelelo oluxhomekeke ekukhanyeni zinciphisa oko olu phononongo lunokukuqinisekisa. Ayilothelekiso lwemethylene blue ekwii-liposome eginywayo nemethylene blue eqhelekileyo.
Yintoni enokuxhasa ibango lokufunxwa ngcono?
Ibango lokuthathwa ngomlomo lifuna uphononongo ebantwini lomxube ogqityiweyo ochaphazelekayo, into efanelekileyo yokuthelekisa, izixa zemethylene blue ezithelekisekayo, neendlela ezichaziweyo zokuqokelela iisampulu nezokuhlalutya. Imilinganiselo yobungakanani bechiza elifikelela emzimbeni, njengommandla ophantsi kwegophe loxinano ngokuhamba kwexesha, ichaza ubungakanani bechiza elifikelela emzimbeni ekuhambeni kwexesha. Incopho ephezulu iyodwa ayiqinisekisi ukufunxwa okupheleleyo okungaphezulu okanye isiphumo esingcono sezonyango.
Imethylene blue eqhelekileyo esemanzini sele inedatha yokufunxwa ebantwini. Uphononongo lwesigaba I olunotshintshiselwano lwamanyathelo kumavolontiya asempilweni ayi-16 lwaxela umndilili wokufumaneka ngokupheleleyo emzimbeni oyi-72.3%, kukho umahluko omkhulu, kumxube wasemanzini owavavanywayo. Esi siphumo asiqinisekisi ipesenti yokufunxwa esebenza kuzo zonke iimveliso kwaye asiyihleleli xa ithelekiswa neemveliso zee-liposome. Kodwa siyasiphikisa ingcinga yokuba imethylene blue ifuna i-liposome ukuze ifunxwe.
Izifundo zophando ezisisiseko ezafunyanwa ukulungiselela eli nqaku azizange zinike ulingo ebantwini lokuthelekisa ngokuthe ngqo iimveliso ezithathwa ngomlomo oluqinisekisa ukufunxwa okungcono komxube wemethylene blue ekwii-liposome othengiswa ezivenkileni. Lo ngumda wobungqina obuchongiweyo, hayi ubungqina bokuba akukho phononongo olunjalo olunokubakho. Ukufunxwa nokusasazeka ngokwendlela yokunikwa nako kufuna ukutolikwa ngokwahlukileyo kwinzuzo yezonyango.
Indlela yokuvavanya ileyibhile yemveliso yee-liposome okanye elungiselelwe ngokukhethekileyo
Cela ubungqina obumalunga naloo mveliso kanye: uxinano lwayo lwemethylene blue, ukuhlolwa kweempawu zesithwali, uvavanyo lwebhetshi, ukuzinza xa igcinwa, nalo naluphi na uthelekiso ebantwini oluxhasa inzuzo epapashiweyo. Isatifikethi esilinganisa kuphela ukucoceka kwedayi asinakuqinisekisa ukuvalelwa ngaphakathi okanye ukufunxwa. Blupreme ithengisa imethylene blue; eli nqaku alichongi uhlobo olukhethwayo lwemveliso yee-liposome. Sebenzisa uluhlu olufanayo lokuthelekisa lomthengi kuye wonke umthengisi.
“Imethylene blue ekwii-liposome elungiselelwe ngokukhethekileyo” yongeza umxholo wendlela yokulungiselela, hayi ubungqina bokuhanjiswa okungcono. EUnited States, amachiza alungiselelwe ngokukhethekileyo awavunywanga yi-FDA. Usokhemesti okanye umntu ogunyazisiweyo ukumisela amachiza kufuneka akwazi ukuchaza injongo yomxube nobungqina obuxhasa indlela ekucetywa ukuba usetyenziswe ngayo. Ukuvalelwa ngaphakathi akufanele kuthathwe njengendlela yokudlula imiba yokhuseleko yemethylene blue esele isaziwa.
Xa uthelekisa isisombululo nomgubo okanye iikhapsuli neepilisi namathontsi olwelo, gcina ukusebenziseka lula, umxholo obhalwe phantsi, nokusebenza kwezonyango zahlukene. Hlawulela uphawu olubonakalisiweyo, kunokuba ucinge ukuba igama lesithwali linika ubungqina obungekhoyo.