Chinyorwa
Azure B: kusachena kwemethylene blue, metabolite, uye musanganiswa wetsvakurudzo
Azure B ikemikari yakasiyana asi ine ukama nemethylene blue. Inogona kunge yatovapo musampuli yemethylene blue, kuoneka mushure mekunge muviri wagadzirisa methylene blue, kana kupihwa yakazvimirira kuti ishandiswe mukuedza. Tsananguro idzi hadzipikisani. Dzinotsanangura kwakabva musanganiswa uyu uye mubvunzo uri kubvunzwa nemutsvakurudzi pamusoro pawo.
Musiyano uyu wakakosha pakududzira certificate of analysis kana chirevo pamusoro pekushanda kwebhayoloji. Kuti Azure B inzi metabolite inoshanda hazvirevi kuti huwandu hwayo husingadzorwi mubhodhoro hunodiwa. Kuti inzi kusachena hazvirevi kuti haina kushanda kwebhayoloji.
Chii chinoshanduka pamakemikari?
Azure B ndiyo monodemethylated derivative yemethylene blue. Boka rimwe remethyl rakabatana nenitrogen rinotsiviwa nehydrogen. Ukama uhwu hunotsanangurwa muhurukuro yemakemikari uye Figure 1 muongororo yaSchirmer nevamwe. Uku kushanduka chaiko kwechimiro chemorekuru, kwete rimwe zita remethylene blue.
Yakasiyanawo nekuderedzwa kuita leucomethylene blue. Reduction inoshandura oxidation state; N-demethylation inoshandura substituent iri panitrogen. Kubata maitiro ose aya sekungoti “methylene blue yava isina ruvara” kunobvisa musiyano unodiwa pakududzira metabolism. Mazita edhayi ane ukama anodawo kungwarirwa nenzira imwechete: Azure A, Azure B, nemethylene blue haasi mazita anogona kungochinjaniswa. Gwaro remisanganiswa ine mazita akafanana rinotsanangura dambudziko iroro remazita.
Mabviro matatu, mibvunzo mitatu yakasiyana
Dhiagiramu yepabutiro inopatsanura nzira nhatu dzekuferefeta. Tafura iyi inoratidza pachena humbowo hunodiwa panzira imwe neimwe.
| Panopinda Azure B mukuferefeta | Mubvunzo uri kubvunzwa | Humbowo hunobatsira | Mhedziso isingateveri kubva pahumbowo ihwohwo |
|---|---|---|---|
| Yatovapo muzvinhu zvekutanga | Batch iyi ine chii? | Nzira inopatsanura uye kuyera Azure B, yakabatana nelot uye specification inoshanda | Huwandu hwakaonekwa hunovandudza mhedzisiro yechigadzirwa |
| Yaonekwa mushure mekusangana nemethylene blue | Ndeipi misanganiswa iripo nekufamba kwenguva? | Kuongororwa kwezvinhu zvekutanga pamwe nezviyero zvebhayoloji zvinotevedzana uye zvakavalidated | Molekuru yega yega yaonekwa inofanira kunge yakaumbwa mumuviri |
| Yawedzerwa semusanganiswa wakazvimirira wakamboongororwa | Azure B pachayo inoitei? | Kuzivikanwa, kuchena, concentration, comparator, uye experimental endpoint yakatsanangurwa | Mhedzisiro imwechete inoitika kuvarwere vari kutora methylene blue |
Mutsetse wepakati uri nyore kusatariswa. Kana Azure B yanga yatovapo muchinhu chakapihwa, sampuli yebhayoloji yakatorwa gare gare inogona kuva nezvose zviri zviviri Azure B yakanga yatovapo uye ichangobva kuumbwa. Kuratidza kuti yakanyatsoumbwa kunoda zvinopfuura kungoona peak mushure mekusangana nayo.
Azure B muzvinhu zvekutanga
Chidzidzo chekare cheanalytical chinopa muenzaniso unobatsira wekuti sei chinhu chiripo muhuwandu hudiki chichigona kukosha. Vatsvakurudzi vaiongorora iodination yemethylene blue vachishandisa HPLC–mass spectrometry vakawana kuti chigadzirwa chikuru chine iodine chakabva pakusachena kweAzure B. Masampuli emethylene blue akaongororwa aiva neAzure B inenge 7–8%. Mumamiriro ekureaction avakashandisa, iodinated Azure B yaiva yakawanda zvikuru kupfuura iodinated methylene blue.
Mapesenti iwayo anotsanangura zvinhu zvakashandiswa muchidzidzo ichocho cha1999. Haagadzi muganhu unogamuchirika nhasi wekusachena kana composition yechigadzirwa chemumwe mutengesi. Kuedza uku kunoratidza pfungwa yakamanikana: musanganiswa wakawanda pane zvimwe muzvinhu zvekutanga hausi iwo unofanirwa kugadzira reaction product yakawanda pane dzimwe.
Paunenge uchiongorora certificate of analysis, tarisa mhedzisiro chaiyo yeAzure B, units, test method, reporting limit, uye kuzivikanwa kwelot. Total dye assay uye related-substances test zvinopindura mibvunzo yakasiyana. Mhedzisiro inoti “haina kuonekwa” inodawo detection kana reporting limit kuti idudzirwe. Ona maitiro ekuverenga certificate of analysis yemethylene blue kuti uwane mamwe macheki egwaro rose.
Azure B inoumbwa panguva yemetabolism
Kudzidza metabolism kunoda analytical separation pakati pemusanganiswa wekutanga nemetabolite yawo. Kim nevamwe vakagadzira nzira yeLC–MS/MS yekuyera misanganiswa yacho miviri muplasma yemakonzo. Calibration range yavo yaiva 1–1,000 ng/mL pamusanganiswa wega wega, ine lower quantification limit ye1 ng/mL vachishandisa 20 microlitres yeplasma yemakonzo. Vakazozoshandisa nzira iyi muchidzidzo chepharmacokinetics mumakonzo.
Mashoko aya akakosha nekuti nzira yekuyera ine mamiriro esampuli ayo yakagadzirirwa. Validation muplasma yemakonzo haingoratidzi yega kuti nzira iyi yakarurama muplasma yevanhu, urine, kana commercial solution ine concentration yakakwirira. Nzira iyi inoratidza kuti vatsvakurudzi vanogona sei kutevera misanganiswa miviri yakaparadzana; haipe mutemo wekupa dose kuvanhu.
Data yekusangana nayo muvanhu inoratidzawo kuti nei percentage imwe chete yakatarwa yemetabolite isina kukwana. Chikamu checlinical pharmacology chelabel yejekiseni remethylene blue chinotaura kuwedzera kwekusangana neAzure B muvanhu vaiva nerenal impairment. Kusangana nayo nekufamba kwenguva kunoratidza kuumbwa, distribution, uye elimination, kwete composition yemubhodhoro chete. Route, nguva yekutora sampuli, uye compartment yakayerwa zvose zvakakosha pakuenzanisa mhedzisiro iyi.
Zvinoratidzwa nekuedza kwakananga
Azure B ine pharmacological activity inogona kuyerwa. Mubvunzo unobatsira zvikuru ndewekuti inoshanda pane target ipi, uye mumamiriro api.
Muchidzidzo cha2012 chakashandisa recombinant human monoamine oxidase, Azure B yakadzivirira MAO-A neIC50 ye11 nM, zvichienzaniswa ne70 nM yemethylene blue mumamiriro akafanana. IC50 ndiyo concentration inosanganisirwa ne50% inhibition muassay iyoyo. Azure B yakadzivirirawo MAO-B, asi paconcentration yakakwirira zvikuru: 968 nM. Vatsvakurudzi vakataura reversible inhibition.
Mhedzisiro iyi inotsigira mukana wekuti Azure B inogona kupa chikamu pamhedzisiro yebhayoloji nekudyidzana, kusanganisira mibvunzo pamusoro pemethylene blue nema neurotransmitters. Hazvirevi kuti Azure B iri nani semushonga kakatanhatu. Ratio iyoyo inotsanangura inhibition yeenzyme imwe chete mukuenzanisa kumwe chete kwekuyedza.
Kuedza kwakasiyana kwehuman cholinesterase kunoratidza muganhu wekuita generalization yakadaro. IC50 values dzeAzure B dzaiva 0.486 micromolar paacetylcholinesterase uye 1.99 micromolar pabutyrylcholinesterase. Methylene blue yaiva nesimba guru muassay idzodzo, ine values dze0.214 uye 0.389 micromolar zvichiteerana. Kurongeka kwesimba kwakachinja zvichienderana nebiological target. Hapana pamhedzisiro idzi inokwanisa yoga kuratidza kuvandudzwa kwecognition kana kurapwa kweAlzheimer's disease.
Kubva pakushanda mukuedza kusvika pakududzira kweclinical
Kuedza mumhuka dzakazara kunowedzera rimwe danho rehumbowo pasina kugadzirisa mubvunzo weclinical efficacy. Muchidzidzo chemakonzo chaDelport nevamwe, Azure B yakaderedza immobility muacute forced-swim test, methylene blue neimipramine zviri pakati pemacomparator. Pepa iri rinodana izvi antidepressant-like effect. Kwaiva kuedza kwemaitiro mumakonzo, kwete trial yaiyera kupora kubva kudepression muvarwere.
Pachirevo chipi nechipi pamusoro peAzure B, tanga waona chinhu chakayedzwa. Zvadaro ona organism kana assay, exposure, uye endpoint. Pakupedzisira, tarisa kana mhedziso iri pamusoro pecomposition, metabolism, enzyme activity, maitiro emhuka, kana clinical benefit. Matanho aya anodzivirira kuti mhedzisiro yebatch quality isatorwe sechirevo chekurapa, uye kuti experimental mechanism isatorwe semhedzisiro yakatosimbiswa muvarwere.