{"id":71470,"date":"2026-05-20T11:55:00","date_gmt":"2026-05-20T11:55:00","guid":{"rendered":"https:\/\/medsbase.com\/?post_type=product&#038;p=71470"},"modified":"2026-05-21T07:14:08","modified_gmt":"2026-05-21T07:14:08","slug":"l-glutathione-reduced-gsh","status":"publish","type":"product","link":"https:\/\/medsbase.com\/cs\/product\/l-glutathione-reduced-gsh\/","title":{"rendered":"L-Glutathion (redukovan\u00fd \/ GSH) injek\u010dn\u00ed \u2014 v\u00fdzkumn\u00e1 kvalita"},"content":{"rendered":"<p><!-- medsbase-tldr-answer --><\/p>\n<div style=\"background: #fff8e1; border-left: 4px solid #f5a623; padding: 18px 22px; margin: 18px 0; border-radius: 4px;\">\n<h3 style=\"margin: 0 0 8px 0; font-size: 16px; color: #1a4a6b;\">Rychl\u00e1 odpov\u011b\u010f \u2014 Co je glutathion (GSH)?<\/h3>\n<p style=\"margin: 0;\"><strong>L-Glutathion (redukovan\u00fd; GSH)<\/strong> je tripeptid \u03b3-glutamyl-cysteinyl-glycin (\u03b3-Glu-Cys-Gly), CAS 70-18-8, molekul\u00e1rn\u00ed vzorec C<sub>10<\/sub>H<sub>17<\/sub>N<sub>3<\/sub>O<sub>6<\/sub>S, molekulov\u00e1 hmotnost 307,32 g\/mol. GSH je nejhojn\u011bj\u0161\u00ed neb\u00edlkovinn\u00fd bun\u011b\u010dn\u00fd thiol (intracelul\u00e1rn\u00ed koncentrace v \u0159\u00e1du milimol\u016f) a kanonick\u00e1 referen\u010dn\u00ed slou\u010denina pro v\u00fdzkum bun\u011b\u010dn\u00e9 antioxida\u010dn\u00ed obrany. Unik\u00e1tn\u00ed <strong>\u03b3-peptidov\u00e1 vazba<\/strong> mezi \u03b3-karboxylovou skupinou glutam\u00e1tu a aminovou skupinou cysteinu (na rozd\u00edl od standardn\u00ed \u03b1-peptidov\u00e9 vazby) \u010din\u00ed GSH odoln\u00fdm v\u016f\u010di b\u011b\u017en\u00fdm peptid\u00e1z\u00e1m \u2014 pouze \u03b3-glutamyltransfer\u00e1za (\u03b3-GT) jej m\u016f\u017ee \u0161t\u011bpit. Bu\u0148ky vyu\u017e\u00edvaj\u00ed GSH jako prim\u00e1rn\u00edho donoru elektron\u016f pro redukci peroxidu vod\u00edku katalyzovanou glutathionperoxid\u00e1zou, jako konjuguj\u00edc\u00edho kofaktoru pro detoxikaci xenobiotik katalyzovanou glutathion-S-transfer\u00e1zou a jako redoxn\u00edho pufru reguluj\u00edc\u00edho rovnov\u00e1hu thiol-disulfidov\u00fdch skupin protein\u016f. Dod\u00e1v\u00e1no jako lyofilizovan\u00fd pr\u00e1\u0161ek USP kvality v\u00fdhradn\u011b pro laboratorn\u00ed v\u00fdzkum.<\/p>\n<\/div>\n<div class=\"medsbase-trust-strip\" style=\"background: #f4f8fb; border: 1px solid #d8e3eb; padding: 12px 16px; margin: 16px 0; border-radius: 4px; font-size: 14px;\"><strong>Co z\u00edsk\u00e1te s MedsBase:<\/strong> Lyofilizovan\u00fd \u226599% HPLC-verifikovan\u00fd L-Glutathion (redukovan\u00e1 forma) \u00b7 Certifik\u00e1t anal\u00fdzy na vy\u017e\u00e1d\u00e1n\u00ed \u00b7 Diskr\u00e9tn\u00ed teplotn\u011b stabiln\u00ed balen\u00ed \u00b7 Celosv\u011btov\u00e1 expedice v\u00fdzkumn\u00fdch materi\u00e1l\u016f \u00b7 1 400+ ov\u011b\u0159en\u00fdch <a href=\"https:\/\/medsbase.com\/cs\/reviews\/\">recenz\u00ed z\u00e1kazn\u00edk\u016f<\/a><\/div>\n<p class=\"medsbase-reship-line\" style=\"font-size: 14px; color: #444; margin: 8px 0 18px;\">\ud83d\udce6 Ka\u017ed\u00e1 objedn\u00e1vka je pokryta na\u0161\u00ed <a href=\"https:\/\/medsbase.com\/cs\/medsbase-re-shipment-assurance-policy\/\"><strong>Z\u00e1rukou op\u011btovn\u00e9ho odesl\u00e1n\u00ed<\/strong><\/a> \u2014 pokud va\u0161e z\u00e1silka nedoraz\u00ed do 20 pracovn\u00edch dn\u016f, p\u0159epos\u00edl\u00e1me ji.<\/p>\n<table class=\"medsbase-spec-table\" style=\"width: 100%; border-collapse: collapse; margin: 18px 0; font-size: 14px;\">\n<thead>\n<tr style=\"background: #2c7cb0; color: #fff;\">\n<th style=\"padding: 8px 12px; text-align: left; width: 30%;\">Specifikace<\/th>\n<th style=\"padding: 8px 12px; text-align: left;\">Detail<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr style=\"background: #f9f9f9;\">\n<td style=\"padding: 8px 12px; border-bottom: 1px solid #e0e0e0; width: 30%;\"><strong>T\u0159\u00edda slou\u010denin<\/strong><\/td>\n<td style=\"padding: 8px 12px; border-bottom: 1px solid #e0e0e0;\">\u03b3-Glutamylov\u00fd tripeptid; prim\u00e1rn\u00ed bun\u011b\u010dn\u00fd neb\u00edlkovinn\u00fd thiolov\u00fd antioxidant; v\u00fdzkumn\u00fd peptid mal\u00e9 molekuly (\u03b3-v\u00e1zan\u00fd, rezistentn\u00ed k peptid\u00e1z\u00e1m)<\/td>\n<\/tr>\n<tr style=\"background: #fff;\">\n<td style=\"padding: 8px 12px; border-bottom: 1px solid #e0e0e0; width: 30%;\"><strong>Chemick\u00fd n\u00e1zev<\/strong><\/td>\n<td style=\"padding: 8px 12px; border-bottom: 1px solid #e0e0e0;\">L-Glutathion, redukovan\u00fd (\u03b3-L-Glutamyl-L-cysteinyl-glycin; synonyma: GSH, glutathionov\u00e1 voln\u00e1 kyselina, redukovan\u00fd glutathion)<\/td>\n<\/tr>\n<tr style=\"background: #f9f9f9;\">\n<td style=\"padding: 8px 12px; border-bottom: 1px solid #e0e0e0; width: 30%;\"><strong>CAS \u010d\u00edslo<\/strong><\/td>\n<td style=\"padding: 8px 12px; border-bottom: 1px solid #e0e0e0;\">70-18-8 (redukovan\u00e1 forma GSH); p\u0159\u00edbuzn\u00e9: 27025-41-8 (oxidovan\u00e1 dimerov\u00e1 forma GSSG, zde nedod\u00e1v\u00e1na)<\/td>\n<\/tr>\n<tr style=\"background: #fff;\">\n<td style=\"padding: 8px 12px; border-bottom: 1px solid #e0e0e0; width: 30%;\"><strong>item2<\/strong><\/td>\n<td style=\"padding: 8px 12px; border-bottom: 1px solid #e0e0e0;\">C<sub>10<\/sub>H<sub>17<\/sub>N<sub>3<\/sub>O<sub>6<\/sub>S<\/td>\n<\/tr>\n<tr style=\"background: #f9f9f9;\">\n<td style=\"padding: 8px 12px; border-bottom: 1px solid #e0e0e0; width: 30%;\"><strong>item7<\/strong><\/td>\n<td style=\"padding: 8px 12px; border-bottom: 1px solid #e0e0e0;\">307,32 g\/mol (voln\u00e1 kyselina)<\/td>\n<\/tr>\n<tr style=\"background: #fff;\">\n<td style=\"padding: 8px 12px; border-bottom: 1px solid #e0e0e0; width: 30%;\"><strong>item9<\/strong><\/td>\n<td style=\"padding: 8px 12px; border-bottom: 1px solid #e0e0e0;\">\u03b3-L-Glutamyl-L-cysteinyl-glycin (\u03b3-Glu-Cys-Gly). Pozoruhodn\u00e1 je <strong>\u03b3-peptidov\u00e1 vazba<\/strong> mezi \u03b3-COOH postrann\u00edm \u0159et\u011bzcem glutam\u00e1tu a \u03b1-aminoskupinou cysteinu, nikoli standardn\u00ed \u03b1-peptidov\u00e1 vazba. Toto nestandardn\u00ed propojen\u00ed zp\u016fsobuje odolnost GSH v\u016f\u010di b\u011b\u017en\u00fdm \u03b1-peptid\u00e1z\u00e1m \u2014 \u0161t\u011bp\u00ed jej pouze \u03b3-glutamyltransfer\u00e1za (\u03b3-GT), co\u017e je limituj\u00edc\u00ed krok v extracelul\u00e1rn\u00ed degradaci a recyklaci GSH.<\/td>\n<\/tr>\n<tr style=\"background: #f9f9f9;\">\n<td style=\"padding: 8px 12px; border-bottom: 1px solid #e0e0e0; width: 30%;\"><strong>Mechanismus \u00fa\u010dinku<\/strong><\/td>\n<td style=\"padding: 8px 12px; border-bottom: 1px solid #e0e0e0;\"><strong>T\u0159i prim\u00e1rn\u00ed bun\u011b\u010dn\u00e9 role<\/strong>. (1) <em>D\u00e1rce elektron\u016f pro glutathionperoxid\u00e1zu<\/em> (rodina GPx) \u2014 2 GSH + H<sub>2<\/sub>O<sub>2<\/sub> \u2192 GSSG + 2 H<sub>2<\/sub>O, kanonick\u00e1 bun\u011b\u010dn\u00e1 reakce redukce peroxidu vod\u00edku; GSSG je n\u00e1sledn\u011b redukov\u00e1n zp\u011bt na 2 GSH NADPH-dependentn\u00ed glutathionredukt\u00e1zou. (2) <em>Ko-substr\u00e1t pro glutathion-S-transfer\u00e1zu<\/em> (rodina GST) \u2014 konjuguje GSH s elektrofiln\u00edmi xenobiotick\u00fdmi a endogenn\u00edmi substr\u00e1ty, \u010d\u00edm\u017e vznikaj\u00ed vylu\u010diteln\u00e9 merkapturov\u00e9 kyseliny (\u00fast\u0159edn\u00ed detoxika\u010dn\u00ed cesta v j\u00e1trech). (3) <em>Redoxn\u00ed pufr<\/em> \u2014 pom\u011br GSH:GSSG (obvykle ~100:1 ve zdrav\u00fdch bu\u0148k\u00e1ch) kontroluje rovnov\u00e1hu thiol-disulfidov\u00fdch skupin protein\u016f prost\u0159ednictv\u00edm v\u00fdm\u011bny zprost\u0159edkovan\u00e9 thioredoxinem a glutaredoxinem, reguluj\u00edc\u00ed tis\u00edce redox-senzitivn\u00edch proteinov\u00fdch aktivit.<\/td>\n<\/tr>\n<tr style=\"background: #f9f9f9;\">\n<td style=\"padding: 8px 12px; border-bottom: 1px solid #e0e0e0; width: 30%;\"><strong>item11<\/strong><\/td>\n<td style=\"padding: 8px 12px; border-bottom: 1px solid #e0e0e0;\">Lyofilizovan\u00fd b\u00edl\u00fd a\u017e sv\u011btle b\u00e9\u017eov\u00fd krystalick\u00fd pr\u00e1\u0161ek; jednor\u00e1zov\u00e9 v\u00fdzkumn\u00e9 lahvi\u010dky. <strong>Vysoce hygroskopick\u00fd<\/strong> \u2014 lahvi\u010dky ihned znovu uzav\u0159ete po ka\u017ed\u00e9m odb\u011bru, aby se zabr\u00e1nilo vst\u0159eb\u00e1v\u00e1n\u00ed vlhkosti.<\/td>\n<\/tr>\n<tr style=\"background: #fff;\">\n<td style=\"padding: 8px 12px; border-bottom: 1px solid #e0e0e0; width: 30%;\"><strong>item13<\/strong><\/td>\n<td style=\"padding: 8px 12px; border-bottom: 1px solid #e0e0e0;\">\u226599% (HPLC ov\u011b\u0159eno, COA na vy\u017e\u00e1d\u00e1n\u00ed); titrace potvrzuje \u226598% sn\u00ed\u017eenou formu GSH (\u22642% oxidovan\u00e9ho GSSG obsahu). Referen\u010dn\u00ed hodnota USP.<\/td>\n<\/tr>\n<tr style=\"background: #f9f9f9;\">\n<td style=\"padding: 8px 12px; border-bottom: 1px solid #e0e0e0; width: 30%;\"><strong>Rozpustnost<\/strong><\/td>\n<td style=\"padding: 8px 12px; border-bottom: 1px solid #e0e0e0;\">20 mg\/ml ve vod\u011b \u2014 snadno rozpustn\u00fd p\u0159i dodan\u00fdch koncentrac\u00edch lahvi\u010dky. Skupina thiol\u016f (-SH) \u010din\u00ed GSH citliv\u00fdm na oxidaci vzduchem \u2014 p\u0159ipravte \u010derstv\u00e9 pracovn\u00ed roztoky a pou\u017e\u00edvejte do 24 hodin, pokud mo\u017eno. DMSO je vhodn\u00fdm rozpou\u0161t\u011bdlem pro p\u0159\u00edpravu z\u00e1sobn\u00edho roztoku pro bun\u011b\u010dn\u00e9 kultury (a\u017e do 100 mg\/ml) a poskytuje dal\u0161\u00ed ochranu proti oxidaci vzduchem.<\/td>\n<\/tr>\n<tr style=\"background: #fff;\">\n<td style=\"padding: 8px 12px; border-bottom: 1px solid #e0e0e0; width: 30%;\"><strong>Skladov\u00e1n\u00ed<\/strong><\/td>\n<td style=\"padding: 8px 12px; border-bottom: 1px solid #e0e0e0;\">Lyofilizovan\u00fd: 2\u20138 \u00b0C v p\u016fvodn\u00edm t\u011bsn\u011bn\u00e9m balen\u00ed pro kr\u00e1tkodob\u00e9 pracovn\u00ed z\u00e1soby; \u221220 \u00b0C pro dlouhodob\u00e9 skladov\u00e1n\u00ed neotev\u0159en\u00fdch lahvi\u010dek (stabiln\u00ed \u226536 m\u011bs\u00edc\u016f p\u0159i \u221220 \u00b0C; \u226518 m\u011bs\u00edc\u016f p\u0159i 2\u20138 \u00b0C). P\u0159ipraven\u00e9 vodn\u00e9 roztoky: 2\u20138 \u00b0C, pou\u017e\u00edvejte do ~7 dn\u016f (oxidace vzduchem na GSSG je limituj\u00edc\u00edm faktorem). Chra\u0148te p\u0159ed sv\u011btlem. <strong>Vyvarujte se opakovan\u00e9ho rozmrazov\u00e1n\u00ed a zamrazov\u00e1n\u00ed<\/strong> \u2014 kumulativn\u00ed cykly zrychluj\u00ed oxidaci GSH na GSSG.<\/td>\n<\/tr>\n<tr style=\"background: #f9f9f9;\">\n<td style=\"padding: 8px 12px; border-bottom: 1px solid #e0e0e0; width: 30%;\"><strong>Pouze pro v\u00fdzkum<\/strong><\/td>\n<td style=\"padding: 8px 12px; border-bottom: 1px solid #e0e0e0;\">Pro laboratorn\u00ed v\u00fdzkum pouze. Nepou\u017e\u00edvejte pro hum\u00e1nn\u00ed nebo veterin\u00e1rn\u00ed diagnostick\u00e9 nebo terapeutick\u00e9 \u00fa\u010dely. Glutathion nen\u00ed na seznamu zak\u00e1zan\u00fdch l\u00e1tek WADA; je schv\u00e1len jako klinick\u00fd injek\u010dn\u00ed p\u0159\u00edpravek v n\u011bkter\u00fdch jurisdikc\u00edch (It\u00e1lie\/Japonsko\/Korea\/Filip\u00edny jako Tationil a podobn\u00e9 zna\u010dky) pro hepatologii a oxida\u010dn\u00ed stresov\u00e9 podm\u00ednky; materi\u00e1l dodan\u00fd zde je ur\u010den pouze pro laboratorn\u00ed pou\u017eit\u00ed a je odli\u0161n\u00fd od t\u011bch klinick\u00fdch p\u0159\u00edpravk\u016f.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><!-- \/medsbase-tldr-answer --><\/p>\n<h2>Co Je L-Glutathion (Redukovan\u00fd \/ GSH)?<\/h2>\n<p><strong>L-Glutathion (redukovan\u00e1 forma, GSH)<\/strong> je nejhojn\u011bj\u0161\u00ed neproteinov\u00e1 bun\u011b\u010dn\u00e1 thiolov\u00e1 l\u00e1tka v eukaryotick\u00e9 biologii \u2014 p\u0159\u00edtomn\u00e1 v milimol\u00e1rn\u00edch intracelul\u00e1rn\u00edch koncentrac\u00edch (1\u201310 mM ve v\u011bt\u0161in\u011b bun\u011b\u010dn\u00fdch typech; a\u017e 10 mM v hepatocytech) a slou\u017e\u00ed jako hlavn\u00ed molekul\u00e1rn\u00ed n\u00e1razn\u00edk pro bun\u011b\u010dn\u00fd redoxn\u00ed stav. Struktur\u00e1ln\u00ed vlastnost\u00ed glutathionu je jeho<sub>10<\/sub>H<sub>17<\/sub>N<sub>3<\/sub>O<sub>6<\/sub>S, molekulov\u00e1 hmotnost 307.32 g\/mol.<\/p>\n<p>Definuj\u00edc\u00edm strukturn\u00edm rysem glutathionu je jeho <strong>\u03b3-peptidov\u00e1 vazba<\/strong>. Standardn\u00ed peptidy jsou propojeny \u03b1-peptidov\u00fdmi vazbami mezi \u03b1-karboxylovou skupinou jedn\u00e9 aminokyseliny a \u03b1-aminovou skupinou n\u00e1sleduj\u00edc\u00ed. V glutathionu je vazba mezi glutam\u00e1tem a cysteinem nekonven\u010dn\u00ed: je tvo\u0159ena mezi <em>\u03b3-carboxyl<\/em> bo\u010dn\u00edho \u0159et\u011bzce glutam\u00e1tu a \u03b1-aminoskupiny cysteinu. Toto nestandardn\u00ed spojen\u00ed je molekul\u00e1rn\u00edm z\u00e1kladem odolnosti glutathionu v\u016f\u010di b\u011b\u017en\u00fdm bun\u011b\u010dn\u00fdm peptid\u00e1z\u00e1m \u2014 pouze \u03b3-glutamyltransfer\u00e1za (\u03b3-GT, GGT, EC 2.3.2.2) rozpozn\u00e1 a \u0161t\u011bp\u00ed \u03b3-vazbu. D\u00edky tomu je glutathion v\u00fdjime\u010dn\u011b stabiln\u00ed v bun\u011b\u010dn\u00e9m cytosolu, kde by jinak byl rychle degradov\u00e1n \u03b1-peptid\u00e1zovou aktivitou, a extracelul\u00e1rn\u00ed degradace zprost\u0159edkovan\u00e1 \u03b3-GT je limituj\u00edc\u00edm krokem recyklace glutathionu.<\/p>\n<p>Glutathion je syntetizov\u00e1n ve dvou ATP-dependentn\u00edch kroc\u00edch cytosolemick\u00fdmi enzymy <strong>glutam\u00e1t-cystein lig\u00e1za (GCL)<\/strong> \u2014 kter\u00e1 vytv\u00e1\u0159\u00ed \u03b3-glutamyl-cysteinovou vazbu \u2014 a <strong>glutathion syntet\u00e1za (GSS)<\/strong> \u2014 kter\u00e1 p\u0159id\u00e1v\u00e1 C-termin\u00e1ln\u00ed glycin. GCL je limituj\u00edc\u00edm enzymem a je zp\u011btnovazebn\u011b inhibov\u00e1na samotn\u00fdm glutathionem, \u010d\u00edm\u017e zaji\u0161\u0165uje autoregulaci bun\u011b\u010dn\u00e9 hladiny glutathionu. Dostupnost cysteinu je dal\u0161\u00edm hlavn\u00edm limituj\u00edc\u00edm faktorem \u2014 proto je N-acetylcystein (NAC), prol\u00e9\u010divo cysteinu, standardn\u00edm klinick\u00fdm z\u00e1sahem pro zv\u00fd\u0161en\u00ed bun\u011b\u010dn\u00e9 synt\u00e9zy glutathionu v kontextech oxida\u010dn\u00edho stresu a detoxikace (co\u017e je z\u00e1kladem schv\u00e1len\u00ed NAC pro p\u0159ed\u00e1vkov\u00e1n\u00ed paracetamolem a dal\u0161\u00ed klinick\u00e9 indikace).<\/p>\n<p>Glutathion existuje v bu\u0148k\u00e1ch ve dvou vz\u00e1jemn\u011b p\u0159em\u011bniteln\u00fdch form\u00e1ch: <strong>redukovan\u00e1 forma (GSH)<\/strong> s volnou thiolovou (-SH) skupinou a <strong>oxidovan\u00e1 forma (GSSG)<\/strong> kde jsou dv\u011b molekuly GSH propojeny disulfidick\u00fdm m\u016fstkem. Pom\u011br GSH:GSSG (obvykle ~100:1 ve zdrav\u00fdch bu\u0148k\u00e1ch, klesaj\u00edc\u00ed na 10:1 nebo m\u00e9n\u011b p\u0159i oxida\u010dn\u00edm stresu) je kanonick\u00fd bun\u011b\u010dn\u00fd redoxn\u00ed biomarker. GSSG je redukov\u00e1n zp\u011bt na 2 GSH pomoc\u00ed <strong>glutathionredukt\u00e1zy (GR, GSR)<\/strong>, NADPH-dependentn\u00edho flavoenzymu \u2014 propojuj\u00edc\u00edho GSH redoxn\u00ed syst\u00e9m s dostupnost\u00ed NADPH a nakonec s pent\u00f3zofosf\u00e1tovou cestou. To je d\u016fvod, pro\u010d naru\u0161en\u00ed pent\u00f3zofosf\u00e1tov\u00e9 cesty (nedostatek G6PD, dostupnost gluk\u00f3za-6-fosf\u00e1tu) naru\u0161uje funkci GSH syst\u00e9mu a spou\u0161t\u00ed oxida\u010dn\u00ed po\u0161kozen\u00ed bun\u011bk.<\/p>\n<p>Dod\u00e1van\u00fd v\u00fdzkumn\u00fd materi\u00e1l je ve form\u011b redukovan\u00e9ho GSH, dod\u00e1van\u00fd jako lyofilizovan\u00fd pr\u00e1\u0161ek pro rekonstituci a pou\u017eit\u00ed ve v\u00fdzkumn\u00fdch protokolech spolu s katalogem peptid\u016f.<\/p>\n<h2>Mechanismus \u00fa\u010dinku \u2014 T\u0159i prim\u00e1rn\u00ed bun\u011b\u010dn\u00e9 role<\/h2>\n<p>Biologick\u00fd mechanismus GSH je sou\u010dtem t\u0159\u00ed prim\u00e1rn\u00edch bun\u011b\u010dn\u00fdch rol\u00ed, kter\u00e9 jsou v\u0161echny dob\u0159e charakterizov\u00e1ny v publikovan\u00e9 biochemii:<\/p>\n<ul>\n<li><strong>Substr\u00e1t glutathionperoxid\u00e1zy (GPx) \u2014 redukce peroxidu vod\u00edku a lipidov\u00fdch peroxid\u016f<\/strong> \u2014 Nej\u010dast\u011bji citovan\u00e1 role GSH. Rodina GPx (GPx1\u20138, s selen-dependentn\u00ed GPx1 jako nejhojn\u011bj\u0161\u00ed) katalyzuje reakci <em>2 GSH + ROOH \u2192 GSSG + ROH + H<sub>2<\/sub>O<\/em>, redukuj\u00edc\u00ed peroxid vod\u00edku a lipidov\u00e9 hydroperoxidy na vodu a alkoholy. Toto je prim\u00e1rn\u00ed obrana bu\u0148ky proti reaktivn\u00edm kysl\u00edkov\u00fdm druh\u016fm generovan\u00fdm mitochondri\u00e1ln\u00ed respirac\u00ed, aktivitou NADPH-oxid\u00e1zy a dal\u0161\u00edmi oxida\u010dn\u00edmi procesy. GPx4 je specifick\u00e1 izoforma, kter\u00e1 katalyzuje redukci lipid-hydroperoxid\u016f a je molekul\u00e1rn\u00edm c\u00edlem, jeho\u017e ztr\u00e1ta funkce spou\u0161t\u00ed <strong>ferropt\u00f3zu<\/strong> \u2014 \u017eelezo-dependentn\u00ed regulovanou bun\u011b\u010dnou smrt, kter\u00e1 se stala hlavn\u00edm zam\u011b\u0159en\u00edm recentn\u00edho v\u00fdzkumu rakoviny a neurodegenerativn\u00edch onemocn\u011bn\u00ed.<\/li>\n<li><strong>Ko-substr\u00e1t glutathion-S-transfer\u00e1zy (GST) \u2014 konjugace xenobiotik a endobiotik<\/strong> \u2014 Rodina GST (cytosolick\u00e9, mikrozom\u00e1ln\u00ed a mitochondri\u00e1ln\u00ed \u010dleny; ~20 lidsk\u00fdch izoforem GST) katalyzuje konjugaci GSH s elektrofiln\u00edmi substr\u00e1ty p\u0159es thiolovou skupinu GSH, generuj\u00edc\u00ed GSH-S-konjugovan\u00e9 adukty, kter\u00e9 jsou n\u00e1sledn\u011b zpracov\u00e1ny \u03b3-GT a dipeptid\u00e1zami na merkapturov\u00e9 kyseliny a vylou\u010deny. Toto je centr\u00e1ln\u00ed detoxika\u010dn\u00ed cesta f\u00e1ze II v j\u00e1trech a dal\u0161\u00edch tk\u00e1n\u00edch, zpracov\u00e1vaj\u00edc\u00ed \u0161irok\u00e9 spektrum xenobiotik (metabolity l\u00e9k\u016f, environment\u00e1ln\u00ed chemik\u00e1lie, produkty metabolismu cytochromu-P450 f\u00e1ze I), endogenn\u00edch elektrofil\u016f (4-hydroxynonenal, akrolein z lipidov\u00e9 peroxidace) a reaktivn\u00edch intermedi\u00e1t\u016f (NAPQI z paracetamolu, z\u00e1klad NAC terapie p\u0159i p\u0159ed\u00e1vkov\u00e1n\u00ed paracetamolem).<\/li>\n<li><strong>Redox-status buffer \u2014 regulace rovnov\u00e1hy thiol-disulfid protein\u016f<\/strong> \u2014 Bun\u011b\u010dn\u00fd pom\u011br GSH:GSSG nastavuje termodynamickou rovnov\u00e1hu pro redoxn\u00ed stav protein-thiol prost\u0159ednictv\u00edm v\u00fdm\u011bny zprost\u0159edkovan\u00e9 thioredoxinem a glutaredoxinem. Tis\u00edce bun\u011b\u010dn\u00fdch protein\u016f maj\u00ed redox-citliv\u00e9 cysteinov\u00e9 zbytky, jejich\u017e thiol-disulfidov\u00fd stav je regulov\u00e1n touto rovnov\u00e1hou \u2014 v\u010detn\u011b kl\u00ed\u010dov\u00fdch transkrip\u010dn\u00edch faktor\u016f (NF-\u03baB, AP-1, Nrf2, p53), sign\u00e1ln\u00edch kin\u00e1z (PTPs, PTEN), apoptotick\u00e9ho apar\u00e1tu (kasp\u00e1zy) a metabolick\u00fdch enzym\u016f (glyceraldehyd-3-fosf\u00e1t dehydrogen\u00e1za, dal\u0161\u00ed). GSH-zprost\u0159edkovan\u00e9 redoxn\u00ed pufrov\u00e1n\u00ed tedy nen\u00ed jen antioxida\u010dn\u00ed obranou, ale tak\u00e9 sign\u00e1ln\u00edm regula\u010dn\u00edm mechanismem \u2014 skute\u010dnost, kter\u00e1 se objevila v publikovan\u00e9m v\u00fdzkumu za posledn\u00ed dv\u011b desetilet\u00ed a je jedn\u00edm z nej\u010dast\u011bji citovan\u00fdch d\u016fvod\u016f pro pou\u017eit\u00ed GSH ve v\u00fdzkumn\u00fdch protokolech mimo jednoduchou antioxida\u010dn\u00ed suplementaci.<\/li>\n<li><strong>Rezervo\u00e1r cysteinu a transport aminokyselin mezi org\u00e1ny<\/strong> \u2014 GSH slou\u017e\u00ed jako tk\u00e1\u0148ov\u011b stabiln\u00ed, transportn\u011b p\u0159\u00edpustn\u00fd rezervo\u00e1r cysteinu \u2014 limituj\u00edc\u00ed aminokyseliny pro synt\u00e9zu nov\u00fdch protein\u016f a pro dal\u0161\u00ed synt\u00e9zu GSH. Cystein ve voln\u00e9 form\u011b je metabolicky nestabiln\u00ed (autooxiduje na cystin, m\u016f\u017ee generovat H<sub>2<\/sub>S, atd.), tak\u017ee t\u011blo udr\u017euje z\u00e1sobu cysteinu p\u0159ev\u00e1\u017en\u011b jako GSH a transportuje cystein mezi org\u00e1ny (zejm\u00e9na j\u00e1tra \u2192 ledviny, j\u00e1tra \u2192 jin\u00e9 tk\u00e1n\u011b) jako GSH, kter\u00fd je n\u00e1sledn\u011b zp\u011btn\u011b p\u0159em\u011bn\u011bn na cystein pomoc\u00ed \u03b3-GT v c\u00edlov\u00e9 tk\u00e1ni.<\/li>\n<li><strong>\u2014 Krom\u011b enzymatick\u00fdch rol\u00ed GSH p\u0159\u00edmo reaguje s hydroxylov\u00fdm radik\u00e1lem, peroxylem a reaktivn\u00edmi dus\u00edkat\u00fdmi slou\u010deninami prost\u0159ednictv\u00edm thiolov\u00e9 skupiny. Kvantitativn\u011b to p\u0159isp\u00edv\u00e1 m\u00e9n\u011b k celkov\u00e9 antioxida\u010dn\u00ed obran\u011b ne\u017e enzymatick\u00fd mechanismus zprost\u0159edkovan\u00fd GPx, ale je d\u016fle\u017eit\u00e9 v odd\u011blen\u00fdch kompartmentech a podm\u00ednk\u00e1ch, kde jsou enzymatick\u00e9 syst\u00e9my saturov\u00e1ny nebo chyb\u00ed (extracelul\u00e1rn\u00ed GSH v plicn\u00ed tekutin\u011b, GSH v lumen st\u0159eva atd.).<\/strong> \u2014 Krom\u011b enzymatick\u00fdch funkc\u00ed reaguje GSH p\u0159\u00edmo s hydroxylov\u00fdm radik\u00e1lem, peroxylov\u00fdm radik\u00e1lem a reaktivn\u00edmi formami dus\u00edku prost\u0159ednictv\u00edm thiolov\u00e9 skupiny. Kvantitativn\u011b to p\u0159isp\u00edv\u00e1 m\u00e9n\u011b k celkov\u00e9 antioxida\u010dn\u00ed obran\u011b ne\u017e enzymov\u00fd mechanismus zprost\u0159edkovan\u00fd GPx, ale je d\u016fle\u017eit\u00e9 v kompartmentech a podm\u00ednk\u00e1ch, kde jsou enzymov\u00e9 syst\u00e9my saturov\u00e1ny nebo chyb\u00ed (extracelul\u00e1rn\u00ed GSH v tekutin\u011b vyst\u00fdlaj\u00edc\u00ed pl\u00edce, GSH v lumen st\u0159eva atd.).<\/li>\n<\/ul>\n<p>Farmakokinetick\u00fd profil injek\u010dn\u00edho GSH je dob\u0159e charakterizov\u00e1n: intraven\u00f3zn\u00ed pod\u00e1n\u00ed vede k rychl\u00e9 syst\u00e9mov\u00e9 distribuci s vrcholov\u00fdmi plazmatick\u00fdmi koncentracemi b\u011bhem n\u011bkolika minut, av\u0161ak plazmatick\u00fd polo\u010das je kr\u00e1tk\u00fd (~10\u201315 minut) v d\u016fsledku rychl\u00e9ho \u0161t\u011bpen\u00ed zprost\u0159edkovan\u00e9ho \u03b3-GT na cysteinylglycin a n\u00e1sledn\u00e9 resynt\u00e9zy nebo dal\u0161\u00edho odbour\u00e1v\u00e1n\u00ed v c\u00edlov\u00fdch tk\u00e1n\u00edch. Kr\u00e1tk\u00e1 doba setrv\u00e1n\u00ed v plazm\u011b je jedn\u00edm z d\u016fvod\u016f, pro\u010d jsou v publikovan\u00e9m v\u00fdzkumu GSH b\u011b\u017en\u00e9 protokoly s ka\u017edodenn\u00edm nebo dvakr\u00e1t denn\u011b pod\u00e1van\u00fdm intraven\u00f3zn\u00edm d\u00e1vkov\u00e1n\u00edm. Permeabilita intaktn\u00edho GSH bun\u011b\u010dnou membr\u00e1nou je n\u00edzk\u00e1 \u2013 bu\u0148ky prim\u00e1rn\u011b importuj\u00ed jednotliv\u00e9 aminokyseliny a resyntetizuj\u00ed GSH intracelul\u00e1rn\u011b. To je d\u016fvod, pro\u010d je peror\u00e1ln\u00ed GSH \u0161patn\u011b biologicky dostupn\u00fd a pro\u010d jsou pro \u00fa\u010dinn\u00e9 dod\u00e1n\u00ed do tk\u00e1n\u00ed v publikovan\u00e9m v\u00fdzkumu zapot\u0159eb\u00ed injek\u010dn\u00ed p\u0159\u00edpravky (nebo alternativn\u011b NAC jako prol\u00e9\u010divo cysteinu).<\/p>\n<h2>Publikovan\u00e9 v\u00fdzkumn\u00e9 aplikace<\/h2>\n<p>Bun\u011b\u010dnou antioxida\u010dn\u00ed obranu \u2014 kanonick\u00e1 referen\u010dn\u00ed slou\u010denina<\/p>\n<ul>\n<li><strong>Bun\u011b\u010dn\u00e1 antioxida\u010dn\u00ed obrana \u2014 kanonick\u00e1 referen\u010dn\u00ed slou\u010denina<\/strong> \u2014 zdaleka nejcitovan\u011bj\u0161\u00ed bun\u011b\u010dn\u00fd antioxidant v publikovan\u00e9 literatu\u0159e; standardn\u00ed referen\u010dn\u00ed l\u00e1tka pro jak\u00fdkoli nov\u00fd v\u00fdzkum antioxida\u010dn\u00edch intervenc\u00ed; molekul\u00e1rn\u00ed zlat\u00fd standard pro anal\u00fdzu bun\u011b\u010dn\u00e9ho redoxn\u00edho stavu<\/li>\n<li><strong>V\u00fdzkum redukce peroxidu vod\u00edku a lipidov\u00fdch peroxid\u016f<\/strong> \u2014 p\u0159\u00edm\u00fd substr\u00e1t GPx; pou\u017eit v publikovan\u00e9m v\u00fdzkumu farmakologie izoforem GPx, rozboru dr\u00e1hy zpracov\u00e1n\u00ed peroxid\u016f a za\u010dlen\u011bn\u00ed GSH do thioredoxinov\u00e9ho a peroxiredoxinov\u00e9ho redoxn\u00edho syst\u00e9mu<\/li>\n<li><strong>\u2014 redukce lipid-hydroperoxid\u016f zprost\u0159edkovan\u00e1 GPx4 je str\u00e1\u017ecem ferropt\u00f3zy; GSH a jeho z\u00e1sahy do syntetick\u00e9 dr\u00e1hy (BSO, erastin, RSL3) jsou kanonick\u00fdmi n\u00e1stroji pro v\u00fdzkum indukce\/suprese ferropt\u00f3zy v kontextech rakoviny, neurodegenerace a isch\u00e9mie-reperf\u00faze<\/strong> \u2014 Redukce lipidov\u00fdch hydroperoxid\u016f zprost\u0159edkovan\u00e1 GPx4 je str\u00e1\u017ecem ferropt\u00f3zy; GSH a intervence v jeho syntetick\u00e9 dr\u00e1ze (BSO, erastin, RSL3) jsou kanonick\u00fdmi n\u00e1stroji pro v\u00fdzkum indukce\/suprese ferropt\u00f3zy v kontextu rakoviny, neurodegenerace a ischemicko-reperfuzn\u00edho po\u0161kozen\u00ed.<\/li>\n<li><strong>v\u00fdzkum detoxikace f\u00e1ze II a konjugace xenobiotik<\/strong> \u2014 substr\u00e1t GST pro centr\u00e1ln\u00ed detoxika\u010dn\u00ed dr\u00e1hu jater; pou\u017e\u00edv\u00e1 se ve v\u00fdzkumu metabolismu l\u00e9\u010div, expozice environment\u00e1ln\u00edm chemik\u00e1li\u00edm, hepatotoxicity indukovan\u00e9 paracetamolem (odstra\u0148ov\u00e1n\u00ed NAPQI) a \u0161ir\u0161\u00ed farmakologie konjugace merkapturov\u00fdch kyselin<\/li>\n<li><strong>V\u00fdzkum redox signalizace protein-thiol<\/strong> \u2014 pom\u011br GSH:GSSG kontroluje thiol-disulfidovou rovnov\u00e1hu tis\u00edc\u016f bun\u011b\u010dn\u00fdch protein\u016f; pou\u017e\u00edv\u00e1 se ve v\u00fdzkumu redox-citliv\u00fdch transkrip\u010dn\u00edch faktor\u016f (Nrf2, NF-\u03baB, AP-1), regulace kin\u00e1z (PTPs, PTEN) a \u0161ir\u0161\u00edho bun\u011b\u010dn\u00e9ho \u201credoxomu\u201d<\/li>\n<li><strong>V\u00fdzkum mitochondri\u00e1ln\u00ed dysfunkce a st\u00e1rnut\u00ed<\/strong> \u2014 hladiny mitochondri\u00e1ln\u00edho GSH klesaj\u00ed s v\u011bkem a v mnoha modelech onemocn\u011bn\u00ed; publikovan\u00fd v\u00fdzkum vyu\u017e\u00edv\u00e1 exogenn\u00ed GSH a z\u00e1sahy do dr\u00e1hy GSH ke zkoum\u00e1n\u00ed p\u0159\u00edsp\u011bvku mitochondri\u00e1ln\u00edho redoxu ke st\u00e1rnut\u00ed, neurodegeneraci a metabolick\u00fdm onemocn\u011bn\u00edm<\/li>\n<li><strong>Hepatologick\u00fd v\u00fdzkum a v\u00fdzkum po\u0161kozen\u00ed jater<\/strong> \u2014 GSH je nejhojn\u011bj\u0161\u00ed v hepatocytech (koncentrace 5\u201310 mM); pou\u017e\u00edv\u00e1 se ve publikovan\u00e9m v\u00fdzkumu alkoholov\u00e9ho onemocn\u011bn\u00ed jater, NAFLD\/MASH, modelech virov\u00e9 hepatitidy a p\u0159ed\u00e1vkov\u00e1n\u00ed paracetamolem \/ po\u0161kozen\u00ed jater vyvolan\u00e9ho l\u00e9ky<\/li>\n<li><strong>Hematologick\u00fd v\u00fdzkum a v\u00fdzkum erytrocyt\u016f<\/strong> \u2014 erytrocyt\u00e1rn\u00ed GSH je hlavn\u00ed obranou proti oxida\u010dn\u00ed hemol\u00fdze; pou\u017e\u00edv\u00e1 se ve v\u00fdzkumu deficience G6PD, srpkovit\u00e9 an\u00e9mie a farmakologie oxida\u010dn\u00ed hemol\u00fdzy<\/li>\n<li><strong>V\u00fdzkum redoxu v rakovin\u011b a chemoprotekce<\/strong> \u2014 mnoho chemoterapeutick\u00fdch l\u00e9k\u016f generuje ROS jako sou\u010d\u00e1st sv\u00e9ho mechanismu a n\u00e1dorov\u00e9 bu\u0148ky \u010dasto maj\u00ed zv\u00fd\u0161en\u00e9 hladiny GSH; publikovan\u00fd v\u00fdzkum vyu\u017e\u00edv\u00e1 GSH a z\u00e1sahy do GSH dr\u00e1hy k anal\u00fdze redoxn\u00ed biologie chemoterapie<\/li>\n<\/ul>\n<p>Pro \u0161ir\u0161\u00ed kontext bun\u011b\u010dn\u00fdch kofaktor\u016f a redoxn\u00edch \/ antioxida\u010dn\u00edch v\u00fdzkumn\u00fdch slou\u010denin v tomto katalogu viz <a href=\"https:\/\/medsbase.com\/cs\/b12-cyanocobalamin\/\">B12 (Kyanokobalamin)<\/a> (mal\u00e1 molekula v\u00fdzkumn\u00e9ho dopl\u0148ku \u2014 methyla\u010dn\u00ed cyklus), <a href=\"https:\/\/medsbase.com\/cs\/l-carnitine\/\">L-Karnitin<\/a> (mitochondri\u00e1ln\u00ed transport mastn\u00fdch kyselin \u2014 dopl\u0148kov\u00e1 mal\u00e1 molekula), <a href=\"https:\/\/medsbase.com\/cs\/nad\/\">NAD\u207a<\/a> (p\u0159\u00edm\u00e1 suplementace dinukleotidov\u00e9ho poolu \u2014 redoxn\u00ed elektronov\u00fd transport), <a href=\"https:\/\/medsbase.com\/cs\/5-amino-1mq\/\">5-Amino-1MQ<\/a> (\u0161et\u0159en\u00ed NAD-osy inhibic\u00ed NNMT), a <a href=\"https:\/\/medsbase.com\/cs\/ss-31-elamipretide\/\">SS-31 (Elamipretide)<\/a> (peptid v\u00e1zaj\u00edc\u00ed kardiolipin s mitochondri\u00e1ln\u011b c\u00edlen\u00fdm antioxida\u010dn\u00edm \u00fa\u010dinkem). Prohl\u00e9dn\u011bte si cel\u00fd <a href=\"https:\/\/medsbase.com\/cs\/peptides\/\">katalog v\u00fdzkumn\u00fdch peptid\u016f a slou\u010denin<\/a>, nebo nav\u0161tivte kur\u00e1torsk\u00fd <a href=\"https:\/\/medsbase.com\/cs\/best-longevity-peptides\/\">v\u00fdzkumn\u00e9 slou\u010deniny pro dlouhov\u011bkost<\/a> .<\/p>\n<h2>Dostupn\u00e9 s\u00edly a koncentrace<\/h2>\n<p>MedsBase nab\u00edz\u00ed Glutathion ve t\u0159ech lyofilizovan\u00fdch velikostech vial\u016f kalibrovan\u00fdch na typick\u00e9 d\u00e1vkov\u00e9 rozsahy v\u00fdzkumn\u00fdch protokol\u016f. Ka\u017ed\u00e1 s\u00edla je dostupn\u00e1 v balen\u00ed po 10 nebo 20 vialech:<\/p>\n<table style=\"width: 100%; border-collapse: collapse; margin: 16px 0;\">\n<thead>\n<tr style=\"background: #2c7cb0; color: #fff;\">\n<th style=\"padding: 10px; border: 1px solid #ddd; text-align: left;\">S\u00edla vialky<\/th>\n<th style=\"padding: 10px; border: 1px solid #ddd; text-align: left;\">Typick\u00fd v\u00fdzkumn\u00fd p\u0159\u00edpad u\u017eit\u00ed<\/th>\n<th style=\"padding: 10px; border: 1px solid #ddd; text-align: left;\">Velikosti balen\u00ed<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"padding: 10px; border: 1px solid #ddd;\"><strong>600 mg<\/strong><\/td>\n<td style=\"padding: 10px; border: 1px solid #ddd;\">Standardn\u00ed v\u00fdzkumn\u00e1 s\u00edla \u2014 vstupn\u00ed protokoly, panely antioxida\u010dn\u00ed obrany in vitro, pr\u00e1ce s titrac\u00ed d\u00e1vek, titrace u jedn\u00e9 kohorty my\u0161\u00ed; vhodn\u00e9 pro p\u0159\u00edpravu pracovn\u00edch roztok\u016f 100\u2013200 mg\/ml<\/td>\n<td style=\"padding: 10px; border: 1px solid #ddd;\">10 nebo 20 vialek<\/td>\n<\/tr>\n<tr style=\"background: #f9f9f9;\">\n<td style=\"padding: 10px; border: 1px solid #ddd;\"><strong>900 mg<\/strong><\/td>\n<td style=\"padding: 10px; border: 1px solid #ddd;\">St\u0159edn\u00ed s\u00edla \u2014 protokoly s prodlou\u017een\u00fdm pod\u00e1v\u00e1n\u00edm u hlodavc\u016f in vivo, IV-v\u00fdzkumn\u00e9 protokoly, velikosti vzork\u016f pro v\u00edce kohort, v\u00fdzkum hepatologie\/model\u016f oxida\u010dn\u00edho stresu<\/td>\n<td style=\"padding: 10px; border: 1px solid #ddd;\">10 nebo 20 vialek<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 10px; border: 1px solid #ddd;\"><strong>1500 mg<\/strong><\/td>\n<td style=\"padding: 10px; border: 1px solid #ddd;\">Vysok\u00e1 v\u00fdzkumn\u00e1 s\u00edla vialu \u2014 protokoly s klinicko-transla\u010dn\u00edm d\u00e1vkov\u00fdm rozsahem (italsk\u00fd Tationil IV d\u00e1vkov\u00fd re\u017eim je 600\u20132400 mg\/den pro hepatologick\u00fd v\u00fdzkum), rozs\u00e1hl\u00e9 metabolick\u00e9 studie kohort, komparativn\u00ed pr\u00e1ce s v\u00edce rameny; nejni\u017e\u0161\u00ed cena za mg<\/td>\n<td style=\"padding: 10px; border: 1px solid #ddd;\">10 nebo 20 vialek<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>V\u0161echny t\u0159i s\u00edly jsou stejn\u00e1 chemick\u00e1 entita (lyofilizovan\u00e1 redukovan\u00e1 forma L-glutathionu, \u226599% HPLC \u010distota, USP-grade potvrzen\u00fd obsah redukovan\u00e9 formy). Vial 1500 mg poskytuje nejni\u017e\u0161\u00ed cenu za mg pro klinicko-transla\u010dn\u00ed v\u00fdzkumn\u00e9 protokoly. V\u00fdzkumn\u00edci by m\u011bli ur\u010dit konkr\u00e9tn\u00ed d\u00e1vkov\u00e9 rozsahy z recenzovan\u00e9 literatury vhodn\u00e9 pro protokol.<\/p>\n<h2>Srovn\u00e1n\u00ed \u2014 Glutathion vs NAD\u207a<\/h2>\n<p>Glutathion a <a href=\"https:\/\/medsbase.com\/cs\/nad\/\">NAD\u207a<\/a> jsou dv\u011b nejstudovan\u011bj\u0161\u00ed mal\u00e9 molekuly bun\u011b\u010dn\u00fdch redox\/koenzymov\u00fdch slou\u010denin v tomto katalogu a nach\u00e1zej\u00ed se na propojen\u00fdch, ale mechanisticky odli\u0161n\u00fdch v\u011btv\u00edch bun\u011b\u010dn\u00e9 redox biologie. GSH je hlavn\u00ed <em>bun\u011b\u010dn\u00e1 antioxida\u010dn\u00ed obrana<\/em> mal\u00e1 molekula \u2014 p\u0159\u00edtomn\u00e1 v milimol\u00e1rn\u00edch koncentrac\u00edch a redukuj\u00edc\u00ed peroxidy prost\u0159ednictv\u00edm mechanismu substr\u00e1tu GPx. NAD\u207a je hlavn\u00ed <em>bun\u011b\u010dn\u00fd transport elektron\u016f<\/em> koenzym \u2014 redukovateln\u00fd na NADH pro transport elektron\u016f v glykol\u00fdze\/TCA cyklu\/\u03b2-oxidaci a substr\u00e1t pro sirtuiny a PARP. Tyto dva syst\u00e9my jsou propojeny: NADPH (vytvo\u0159en\u00fd z NAD p\u0159es pent\u00f3zofosf\u00e1tovou dr\u00e1hu) je reduk\u010dn\u00ed ekvivalent, kter\u00fd regeneruje GSH z GSSG p\u0159es glutathion redukt\u00e1zu. V\u00fdzkum zkoumaj\u00edc\u00ed bun\u011b\u010dnou redox biologii \u010dasto manipuluje s ob\u011bma pooly a porovn\u00e1v\u00e1 d\u016fsledky.<\/p>\n<table style=\"width: 100%; border-collapse: collapse; margin: 16px 0;\">\n<thead>\n<tr style=\"background: #2c7cb0; color: #fff;\">\n<th style=\"padding: 10px; border: 1px solid #ddd; text-align: left;\">Krit\u00e9rium<\/th>\n<th style=\"padding: 10px; border: 1px solid #ddd; text-align: left;\">Glutathion (GSH)<\/th>\n<th style=\"padding: 10px; border: 1px solid #ddd; text-align: left;\">NAD\u207a<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"padding: 10px; border: 1px solid #ddd;\"><strong>Chemick\u00e1 t\u0159\u00edda<\/strong><\/td>\n<td style=\"padding: 10px; border: 1px solid #ddd;\">\u03b3-Glutamyltripeptid (\u03b3-Glu-Cys-Gly)<\/td>\n<td style=\"padding: 10px; border: 1px solid #ddd;\">Dinukleotidov\u00fd koenzym (adenin + nikotinamid + difosf\u00e1t)<\/td>\n<\/tr>\n<tr style=\"background: #f9f9f9;\">\n<td style=\"padding: 10px; border: 1px solid #ddd;\"><strong>Molekulov\u00e1 hmotnost<\/strong><\/td>\n<td style=\"padding: 10px; border: 1px solid #ddd;\">307.32 g\/mol<\/td>\n<td style=\"padding: 10px; border: 1px solid #ddd;\">663.43 g\/mol<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 10px; border: 1px solid #ddd;\"><strong>Bun\u011b\u010dn\u00e1 role<\/strong><\/td>\n<td style=\"padding: 10px; border: 1px solid #ddd;\">Antioxida\u010dn\u00ed obrana \u2014 substr\u00e1t GPx (redukce peroxid\u016f), ko-substr\u00e1t GST (konjugace xenobiotik), redoxn\u00ed pufr<\/td>\n<td style=\"padding: 10px; border: 1px solid #ddd;\">Koenzym elektronov\u00e9ho transportu \u2014 substr\u00e1t pro \u03b2-oxidaci, glykol\u00fdzu, TCA cyklus; substr\u00e1t pro sirtuiny a PARP<\/td>\n<\/tr>\n<tr style=\"background: #f9f9f9;\">\n<td style=\"padding: 10px; border: 1px solid #ddd;\"><strong>Bun\u011b\u010dn\u00e1 koncentrace<\/strong><\/td>\n<td style=\"padding: 10px; border: 1px solid #ddd;\">1\u201310 mM (milimol\u00e1rn\u00ed \u2014 nejhojn\u011bj\u0161\u00ed neproteinov\u00fd thiol)<\/td>\n<td style=\"padding: 10px; border: 1px solid #ddd;\">~0,3\u20131 mM (pool NAD, mikromol\u00e1rn\u00ed a\u017e vysok\u00e9 \u00b5M)<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 10px; border: 1px solid #ddd;\"><strong>Nejl\u00e9pe prostudovan\u00fd v\u00fdzkumn\u00fd z\u00e1m\u011br<\/strong><\/td>\n<td style=\"padding: 10px; border: 1px solid #ddd;\">Antioxida\u010dn\u00ed obrana, ferropt\u00f3za, detoxifikace f\u00e1ze II, redoxn\u00ed signalizace, hepatologie, po\u0161kozen\u00ed paracetamolem<\/td>\n<td style=\"padding: 10px; border: 1px solid #ddd;\">Biologie sirtuin\u016f, dlouhov\u011bkost, bun\u011b\u010dn\u00e9 st\u00e1rnut\u00ed, redox regulace NAD osy<\/td>\n<\/tr>\n<tr style=\"background: #f9f9f9;\">\n<td style=\"padding: 10px; border: 1px solid #ddd;\"><strong>Stabilita v plazm\u011b<\/strong><\/td>\n<td style=\"padding: 10px; border: 1px solid #ddd;\">Kr\u00e1tk\u00fd \u2014 polo\u010das ~10\u201315 minut (extracelul\u00e1rn\u00ed rozklad zprost\u0159edkovan\u00fd \u03b3-GT)<\/td>\n<td style=\"padding: 10px; border: 1px solid #ddd;\">Velmi kr\u00e1tk\u00e1 \u2014 minuty (rychle oxiduje a degraduje v roztoku)<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 10px; border: 1px solid #ddd;\"><strong>Spojen\u00ed<\/strong><\/td>\n<td style=\"padding: 10px; border: 1px solid #ddd;\">NADPH (odvozen\u00fd od NAD) regeneruje GSH z GSSG prost\u0159ednictv\u00edm glutathionredukt\u00e1zy<\/td>\n<td style=\"padding: 10px; border: 1px solid #ddd;\">Spojen\u00ed NADPH propojuje z\u00e1sobu NAD s reduk\u010dn\u00ed kapacitou GSH-syst\u00e9mu<\/td>\n<\/tr>\n<tr style=\"background: #f9f9f9;\">\n<td style=\"padding: 10px; border: 1px solid #ddd;\"><strong>Klinick\u00e9 pou\u017eit\u00ed<\/strong><\/td>\n<td style=\"padding: 10px; border: 1px solid #ddd;\">Schv\u00e1len\u00fd injek\u010dn\u00ed p\u0159\u00edpravek v It\u00e1lii\/Japonsku\/Koreji (Tationil a podobn\u00e9; hepatologie, oxida\u010dn\u00ed stres)<\/td>\n<td style=\"padding: 10px; border: 1px solid #ddd;\">Neschv\u00e1len jako klinick\u00fd terapeutikum; pouze v\u00fdzkumn\u00e1 slou\u010denina<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Pro v\u00fdzkum zam\u011b\u0159en\u00fd na bun\u011b\u010dnou antioxida\u010dn\u00ed obranu, ferropt\u00f3zu, detoxifikaci f\u00e1ze II nebo redoxn\u00ed signalizaci je Glutathion kanonickou referen\u010dn\u00ed slou\u010deninou. Pro v\u00fdzkum zam\u011b\u0159en\u00fd na sirtuinovou biologii, biochemii dlouhov\u011bkosti nebo NAD-dependentn\u00ed redoxn\u00ed regulaci je, <a href=\"https:\/\/medsbase.com\/cs\/nad\/\">NAD\u207a<\/a> c\u00edlen\u011bj\u0161\u00edm n\u00e1strojem. Tyto dv\u011b slou\u010deniny jsou b\u011b\u017en\u011b pod\u00e1v\u00e1ny spole\u010dn\u011b ve v\u00fdzkumu, kter\u00fd zkoum\u00e1 integrovanou odpov\u011b\u010f bun\u011b\u010dn\u00e9ho redoxn\u00edho syst\u00e9mu na oxida\u010dn\u00ed stres, st\u00e1rnut\u00ed nebo mitochondri\u00e1ln\u00ed dysfunkci.<\/p>\n<div style=\"background: #f4f8fb; border-left: 4px solid #2c7cb0; padding: 14px 18px; margin: 18px 0;\"><strong class=\"mb-bac-water-callout\">\ud83d\udca7 Pot\u0159ebujete BAC vodu?<\/strong> Rekonstituce jak\u00e9hokoli lyofilizovan\u00e9ho vialu vy\u017eaduje steriln\u00ed bakteriostatickou vodu. Sp\u00e1rujte tento produkt s na\u0161\u00edm <a href=\"\/cs\/bac-water\/\"><strong>BAC Water (Bakteriostatick\u00e1 voda)<\/strong><\/a> \u2014 30 mL multid\u00e1vkov\u00fdm vialem, 0,9% benzylalkoholem konzervovan\u00fdm, USP-grade.<\/div>\n<h2>Skladov\u00e1n\u00ed a rekonstituce<\/h2>\n<p><strong>P\u0159ed rekonstituci:<\/strong> skladujte lyofilizovan\u00e9 lahvi\u010dky v chladni\u010dce p\u0159i 2\u20138 \u00b0C v p\u016fvodn\u00edm neporu\u0161en\u00e9m obalu. Pro dlouhodob\u00e9 skladov\u00e1n\u00ed zmrazte neotev\u0159en\u00e9 lahvi\u010dky p\u0159i \u221220 \u00b0C (stabiln\u00ed \u226536 m\u011bs\u00edc\u016f p\u0159i \u221220 \u00b0C; \u226518 m\u011bs\u00edc\u016f p\u0159i 2\u20138 \u00b0C). Lyofilizovan\u00fd GSH je <strong>vysoce hygroskopick\u00fd<\/strong> \u2014 ihned po ka\u017ed\u00e9m odb\u011bru znovu uzav\u0159ete lahvi\u010dky, aby nedo\u0161lo k absorbci vlhkosti (kter\u00e1 urychluje oxidaci GSH \u2192 GSSG). Chra\u0148te p\u0159ed sv\u011btlem.<\/p>\n<p><strong>Postup rekonstituce:<\/strong> steriln\u00ed vodu, bakteriostatickou vodu nebo PBS (pH 7,2) vst\u0159ikujte po bo\u010dn\u00ed st\u011bn\u011b lahvi\u010dky (ne p\u0159\u00edmo na lyofilizovanou hmotu). Pro lahvi\u010dku 600 mg: 6,0 ml rozpou\u0161t\u011bdla vytvo\u0159\u00ed pracovn\u00ed roztok 100 mg\/ml; 3,0 ml vytvo\u0159\u00ed 200 mg\/ml. Pro lahvi\u010dku 900 mg: 9,0 ml vytvo\u0159\u00ed 100 mg\/ml; 4,5 ml vytvo\u0159\u00ed 200 mg\/ml. Pro lahvi\u010dku 1500 mg: 7,5 ml vytvo\u0159\u00ed 200 mg\/ml; 15 ml vytvo\u0159\u00ed 100 mg\/ml. GSH se p\u0159i pokojov\u00e9 teplot\u011b rychle rozpou\u0161t\u00ed jemn\u00fdm krou\u017een\u00edm.<\/p>\n<p><strong>Kritick\u00e9 pro rekonstituovan\u00fd GSH:<\/strong> thiolov\u00e1 skupina (-SH) je <strong>citliv\u00e1 na oxidaci vzduchem<\/strong> \u2014 rekonstituovan\u00e9 roztoky postupn\u011b oxiduj\u00ed na formu GSSG, i p\u0159i chlazen\u00ed. Pokud mo\u017eno p\u0159ipravujte pracovn\u00ed roztoky \u010derstv\u00e9 z lyofilizovan\u00fdch lahvi\u010dek, nebo pou\u017eijte do 7 dn\u016f od rekonstituce p\u0159i chlazen\u00ed. Pro dlouhodob\u00e9 skladov\u00e1n\u00ed rekonstituovan\u00e9ho materi\u00e1lu p\u0159idejte chel\u00e1tory (1 mM EDTA) ke zpomalen\u00ed katalyzovan\u00e9 oxidace kovy, skladujte v inertn\u00ed atmosf\u00e9\u0159e (argon nebo dus\u00edk), nebo pou\u017eijte DMSO jako kosolvent (kter\u00fd poskytuje dal\u0161\u00ed ochranu). Nedoporu\u010duje se opakovan\u00e9 zmrazov\u00e1n\u00ed a rozmrazov\u00e1n\u00ed. Zlikvidujte p\u0159i v\u00fdrazn\u00e9 zm\u011bn\u011b barvy (\u017elut\u00e1\/hn\u011bd\u00e1) nebo p\u0159i vzniku sra\u017eenin.<\/p>\n<h2>\u010casto kladen\u00e9 dotazy<\/h2>\n<h3>Jak\u00fd je rozd\u00edl mezi redukovan\u00fdm (GSH) a oxidovan\u00fdm (GSSG) glutathionem?<\/h3>\n<p>GSH je redukovan\u00e1 forma s volnou thiolovou skupinou (-SH) na cysteinov\u00e9m zbytku \u2014 biologicky aktivn\u00ed forma p\u016fsob\u00edc\u00ed jako bun\u011b\u010dn\u00fd antioxidant. GSSG je oxidovan\u00e1 dimerick\u00e1 forma, kde jsou dv\u011b molekuly GSH propojeny disulfidick\u00fdm m\u016fstkem mezi sirn\u00fdmi atomy cysteinu \u2014 vy\u010derpan\u00e1 forma, kterou je t\u0159eba redukovat zp\u011bt na 2 GSH pomoc\u00ed glutathionredukt\u00e1zy. Bun\u011b\u010dn\u00fd pom\u011br GSH:GSSG (obvykle ~100:1 ve zdrav\u00fdch bu\u0148k\u00e1ch, klesaj\u00edc\u00ed na 10:1 nebo m\u00e9n\u011b p\u0159i oxida\u010dn\u00edm stresu) je kl\u00ed\u010dov\u00fdm biomarkerem bun\u011b\u010dn\u00e9ho redoxn\u00edho stavu. Dod\u00e1v\u00e1me redukovanou formu GSH; v\u00fdzkumn\u00edci vy\u017eaduj\u00edc\u00ed konkr\u00e9tn\u011b GSSG by se m\u011bli obr\u00e1tit na specializovan\u00e9 dodavatele.<\/p>\n<h3>Pro\u010d m\u00e1 GSH \u03b3-peptidovou vazbu m\u00edsto b\u011b\u017en\u00e9 \u03b1-peptidov\u00e9 vazby?<\/h3>\n<p>Nestandardn\u00ed \u03b3-peptidov\u00e1 vazba mezi \u03b3-COOH glutam\u00e1tu a \u03b1-NH cysteinu<sub>2<\/sub> je to, co dod\u00e1v\u00e1 glutathionu odolnost v\u016f\u010di bun\u011b\u010dn\u00fdm peptid\u00e1z\u00e1m. Standardn\u00ed bun\u011b\u010dn\u00e9 \u03b1-peptid\u00e1zy (aminopeptid\u00e1zy, karboxypeptid\u00e1zy) rozpozn\u00e1vaj\u00ed pouze \u03b1-peptidov\u00e9 vazby a nedok\u00e1\u017eou \u0161t\u011bpit \u03b3-vazbu. Pouze \u03b3-glutamyltransfer\u00e1za (\u03b3-GT, GGT) rozpozn\u00e1v\u00e1 a \u0161t\u011bp\u00ed \u03b3-vazbu \u2014 a \u03b3-GT je limituj\u00edc\u00ed enzym degradace GSH, exprimovan\u00fd hlavn\u011b na apik\u00e1ln\u00edm povrchu epiteli\u00e1ln\u00edch bun\u011bk (ledviny, \u017elu\u010dov\u00e9 cesty atd.). Toto nestandardn\u00ed propojen\u00ed je tedy kl\u00ed\u010dov\u00e9 pro stabiln\u00ed intracelul\u00e1rn\u00ed akumulaci glutathionu v milimol\u00e1rn\u00edch koncentrac\u00edch.<\/p>\n<h3>Pro\u010d je peror\u00e1ln\u00ed biologick\u00e1 dostupnost GSH n\u00edzk\u00e1?<\/h3>\n<p>Intaktn\u00ed GSH je \u0161patn\u011b absorbov\u00e1n st\u0159evn\u00edm epitelem, proto\u017ee: (1) \u03b3-peptidov\u00e1 vazba br\u00e1n\u00ed rozpozn\u00e1n\u00ed standardn\u00edmi di-\/tri-peptidov\u00fdmi transport\u00e9ry PEPT1\/PEPT2, kter\u00e9 absorbuj\u00ed jin\u00e9 tripeptidy; (2) aktivita \u03b3-GT na kart\u00e1\u010dov\u00e9m lemu degraduje v\u011bt\u0161inu peror\u00e1ln\u011b podan\u00e9ho GSH na jeho slo\u017ekov\u00e9 aminokyseliny p\u0159ed absorpc\u00ed; (3) uvoln\u011bn\u00fd cystein je pak z velk\u00e9 \u010d\u00e1sti spot\u0159ebov\u00e1n enterocyty pro prvn\u00ed pr\u016fchod resynt\u00e9zou GSH. \u010cist\u00e1 peror\u00e1ln\u00ed biologick\u00e1 dostupnost intaktn\u00edho GSH je proto velmi n\u00edzk\u00e1, co\u017e je d\u016fvod, pro\u010d jsou pro syst\u00e9mov\u00e9 v\u00fdzkumn\u00e9 intervence na zv\u00fd\u0161en\u00ed GSH preferov\u00e1ny injek\u010dn\u00ed p\u0159\u00edpravky nebo N-acetylcystein (NAC, prol\u00e9\u010divo cysteinu).<\/p>\n<h3>Jak\u00e9 d\u00e1vkov\u00e9 rozsahy byly pou\u017eity ve v\u00fdzkumu?<\/h3>\n<p>D\u00e1vkov\u00e1n\u00ed v r\u00e1mci v\u00fdzkumn\u00fdch protokol\u016f s intraven\u00f3zn\u00edm GSH obvykle pou\u017e\u00edv\u00e1 600\u20131200 mg na d\u00e1vku, denn\u011b nebo 2\u20133\u00d7 t\u00fddn\u011b, po dobu 4\u201312 t\u00fddn\u016f u v\u00fdzkumu na lidsk\u00fdch subjektech (odpov\u00edd\u00e1 schv\u00e1len\u00e9mu d\u00e1vkovac\u00edmu rozsahu italsk\u00e9ho p\u0159\u00edpravku Tationil 600\u20132400 mg\/den). Pr\u00e1ce in vivo na hlodavc\u00edch pou\u017e\u00edv\u00e1 50\u2013150 mg\/kg IV\/IP, co\u017e odpov\u00edd\u00e1 d\u00e1vkov\u00e9mu rozsahu, kter\u00fd spolehliv\u011b zvy\u0161uje syst\u00e9movou hladinu GSH navzdory kr\u00e1tk\u00e9mu plazmatick\u00e9mu polo\u010dasu. Protokoly pro in vitro bun\u011b\u010dn\u00e9 kultury obvykle pou\u017e\u00edvaj\u00ed 0,5\u201310 mM v r\u016fstov\u00e9m m\u00e9diu (bu\u0148ky p\u0159ij\u00edmaj\u00ed cystein z GSH a resyntetizuj\u00ed intracelul\u00e1rn\u00ed GSH). V\u00fdzkumn\u00edci by se m\u011bli obr\u00e1tit na prim\u00e1rn\u00ed literaturu vhodnou pro konkr\u00e9tn\u00ed aplikaci.<\/p>\n<h3>Pro\u010d je plazmatick\u00fd polo\u010das GSH tak kr\u00e1tk\u00fd?<\/h3>\n<p>Aktivita plazmatick\u00e9 \u03b3-GT rychle \u0161t\u011bp\u00ed \u03b3-peptidovou vazbu cirkuluj\u00edc\u00edho GSH na cysteinylglycin, kter\u00fd je n\u00e1sledn\u011b d\u00e1le \u0161t\u011bpen dipeptid\u00e1zami na cystein + glycin. Kombinovan\u00e1 kask\u00e1da \u03b3-GT + dipeptid\u00e1zy d\u00e1v\u00e1 neporu\u0161en\u00e9mu cirkuluj\u00edc\u00edmu GSH plazmatick\u00fd polo\u010das pouze ~10\u201315 minut. To je d\u016fvod, pro\u010d se v klinicko-v\u00fdzkumn\u00fdch protokolech pou\u017e\u00edv\u00e1 opakovan\u00e9 denn\u00ed d\u00e1vkov\u00e1n\u00ed sp\u00ed\u0161e ne\u017e jednor\u00e1zov\u00e9 vysok\u00e9 d\u00e1vky, a pro\u010d je N-acetylcystein (NAC) \u2014 kter\u00fd je p\u0159ij\u00edm\u00e1n v neporu\u0161en\u00e9 form\u011b a vyu\u017e\u00edv\u00e1n pro intracelul\u00e1rn\u00ed synt\u00e9zu GSH \u2014 n\u011bkdy preferov\u00e1n jako dlouhodob\u011bj\u0161\u00ed alternativa zdroje cysteinu pro v\u00fdzkum zv\u00fd\u0161en\u00ed bun\u011b\u010dn\u00e9ho GSH.<\/p>\n<h3>M\u016f\u017ee b\u00fdt GSH kombinov\u00e1n s B12, NAC nebo jin\u00fdmi redoxn\u00edmi \/ kofaktorov\u00fdmi slou\u010deninami ve v\u00fdzkumn\u00fdch protokolech?<\/h3>\n<p>Ano \u2014 GSH je mechanisticky propojen s mnoha dal\u0161\u00edmi bun\u011b\u010dn\u00fdmi redoxn\u00edmi a kofaktorov\u00fdmi slou\u010deninami. Mezi b\u011b\u017en\u00e9 kombinace ve v\u00fdzkumn\u00fdch protokolech pat\u0159\u00ed: GSH + NAC (paraleln\u00ed strategie zdroje cysteinu \u2014 GSH jako neporu\u0161en\u00fd tripeptid, NAC jako prol\u00e9\u010divo cysteinu \u2014 pro porovn\u00e1n\u00ed extracelul\u00e1rn\u00edch vs intracelul\u00e1rn\u00edch cest dopl\u0148ov\u00e1n\u00ed GSH); GSH + <a href=\"https:\/\/medsbase.com\/cs\/b12-cyanocobalamin\/\">B12<\/a> (v\u00fdzkum neurologie souvisej\u00edc\u00ed s oxida\u010dn\u00edm stresem a metyla\u010dn\u00edho cyklu); GSH + <a href=\"https:\/\/medsbase.com\/cs\/nad\/\">NAD\u207a<\/a> (integrovan\u00e1 anal\u00fdza redoxn\u00edho poolu); GSH + <a href=\"https:\/\/medsbase.com\/cs\/ss-31-elamipretide\/\">SS-31<\/a> (v\u00fdzkum redoxn\u00edch proces\u016f c\u00edlen\u00fdch na mitochondrie). Ka\u017edou slo\u017eku rekonstituujte zvl\u00e1\u0161\u0165 t\u011bsn\u011b p\u0159ed pou\u017eit\u00edm a p\u0159id\u00e1vejte zvl\u00e1\u0161\u0165, nikoli spole\u010dn\u011b skladovan\u00e9 rekonstituovan\u00e9 roztoky.<\/p>\n<h3>Jak se tento v\u00fdzkumn\u00fd GSH porovn\u00e1v\u00e1 s klinick\u00fdmi p\u0159\u00edpravky jako je Tationil?<\/h3>\n<p>Tationil (a podobn\u00e9 zna\u010dkov\u00e9 klinick\u00e9 p\u0159\u00edpravky dostupn\u00e9 v It\u00e1lii \/ Japonsku \/ Koreji \/ Filip\u00edn\u00e1ch) je redukovan\u00e1 forma L-glutathionu schv\u00e1len\u00e1 jako klinick\u00e1 injek\u010dn\u00ed forma pro hepatologick\u00e9 a oxida\u010dn\u00ed stresov\u00e9 indikace. V\u00fdzkumn\u00fd GSH dod\u00e1van\u00fd zde je stejn\u00e1 redukovan\u00e1 forma L-glutathionu s \u010distotou \u226599 % HPLC, dod\u00e1van\u00e1 bez ozna\u010den\u00ed pro klinick\u00e9 pou\u017eit\u00ed a ur\u010den\u00e1 pouze pro laboratorn\u00ed v\u00fdzkum. V\u00fdzkumn\u00edci hledaj\u00edc\u00ed GSH pro klinick\u00e9 pou\u017eit\u00ed by jej m\u011bli z\u00edskat prost\u0159ednictv\u00edm klinick\u00e9ho dodavatelsk\u00e9ho \u0159et\u011bzce; v\u00fdzkumn\u00edci hledaj\u00edc\u00ed v\u00fdzkumn\u00fd materi\u00e1l pro in-vitro a in-vivo laboratorn\u00ed protokoly mohou pou\u017e\u00edt materi\u00e1l dod\u00e1van\u00fd zde.<\/p>\n<h3>Je GSH na seznamu zak\u00e1zan\u00fdch l\u00e1tek WADA?<\/h3>\n<p>Ne. Glutathion nen\u00ed na seznamu zak\u00e1zan\u00fdch l\u00e1tek WADA. Je to p\u0159irozen\u011b se vyskytuj\u00edc\u00ed bun\u011b\u010dn\u00fd antioxida\u010dn\u00ed tripeptid p\u0159\u00edtomn\u00fd v milimol\u00e1rn\u00edch koncentrac\u00edch v ka\u017ed\u00e9 jadern\u00e9 bu\u0148ce \u2014 proto nen\u00ed p\u0159edm\u011btem regula\u010dn\u00edch omezen\u00ed sportovn\u00edho v\u00fdkonu.<\/p>\n<div class=\"medsbase-trust-strip\" style=\"background: #f4f8fb; border: 1px solid #d8e3eb; padding: 12px 16px; margin: 20px 0 8px; border-radius: 4px; font-size: 14px;\"><strong>Pro\u010d objedn\u00e1vat v\u00fdzkumn\u00e9 slou\u010deniny od MedsBase:<\/strong> Lyofilizovan\u00e9 peptidy a slou\u010deniny HPLC \u226599% \u00b7 COA dostupn\u00e9 na vy\u017e\u00e1d\u00e1n\u00ed \u00b7 Diskr\u00e9tn\u00ed teplotn\u011b stabiln\u00ed balen\u00ed \u00b7 Celosv\u011btov\u00e1 p\u0159eprava \u00b7 <a href=\"https:\/\/medsbase.com\/cs\/medsbase-re-shipment-assurance-policy\/\">Reshipment Assurance<\/a> na ka\u017edou objedn\u00e1vku \u00b7 1,400+ ov\u011b\u0159en\u00fdch <a href=\"https:\/\/medsbase.com\/cs\/reviews\/\">recenz\u00ed z\u00e1kazn\u00edk\u016f<\/a><\/div>\n<p><!-- medsbase-related-alts-v1 --><\/p>\n<h2>Dal\u0161\u00ed mal\u00e9 molekuly pro v\u00fdzkumn\u00e9 \u00fa\u010dely<\/h2>\n<ul>\n<li><a href=\"\/cs\/b12-cyanocobalamin\/\"><strong>B12 (Kyanokobalamin)<\/strong><\/a> \u2014 Kobalaminov\u00fd koenzym \u2014 v\u00fdzkumn\u00fd spole\u010dn\u00edk metyla\u010dn\u00edho cyklu<\/li>\n<li><a href=\"\/cs\/l-carnitine\/\"><strong>L-Karnitin<\/strong><\/a> \u2014 Mitochondri\u00e1ln\u00ed p\u0159ena\u0161e\u010d mastn\u00fdch kyselin \u2014 nejbli\u017e\u0161\u00ed mal\u00e1 molekula analogick\u00e1 v\u00fdzkumn\u00e9mu pomocn\u00edkovi<\/li>\n<li><a href=\"\/cs\/nad\/\"><strong>NAD\u207a<\/strong><\/a> \u2014 Oxidovan\u00fd dinukleotidov\u00fd koenzym \u2014 p\u0159\u00edm\u00fd v\u00fdzkum NAD-poolu \/ elektronov\u00e9ho transportu<\/li>\n<li><a href=\"\/cs\/5-amino-1mq\/\"><strong>5-Amino-1MQ<\/strong><\/a> \u2014 Inhibitor NNMT \u2014 \u0161et\u0159en\u00ed prekurzor\u016f NAD-osy, vyrovn\u00e1v\u00e1n\u00ed metyla\u010dn\u00edho poolu<\/li>\n<li><a href=\"\/cs\/ss-31-elamipretide\/\"><strong>SS-31 (Elamipretide)<\/strong><\/a> \u2014 Kardiolipin-v\u00e1zaj\u00edc\u00ed mitochondri\u00e1ln\u011b c\u00edlen\u00fd antioxida\u010dn\u00ed peptid<\/li>\n<li><a href=\"\/cs\/bac-water\/\"><strong>BAC Water (Bakteriostatick\u00e1 voda)<\/strong><\/a> \u2014 Nezbytn\u00e9 pro rekonstituci jak\u00e9hokoli lyofilizovan\u00e9ho vialu \u2014 steriln\u00ed \u0159edidlo s 0,9% konzervantem benzylalkoholu<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>\u2705 \u03b3-Glutamylov\u00fd tripeptid (\u03b3-Glu-Cys-Gly) \u2014 prim\u00e1rn\u00ed bun\u011b\u010dn\u00fd neproteinov\u00fd thiol<br \/>\n\u2705 Substr\u00e1t GPx (redukce peroxid\u016f) + ko-substr\u00e1t GST (konjugace xenobiotik) + n\u00e1razn\u00edk redoxn\u00edho stavu<br \/>\n\u2705 Unik\u00e1tn\u00ed \u03b3-peptidov\u00e1 vazba \u2014 odoln\u00e1 v\u016f\u010di peptid\u00e1z\u00e1m; \u0161t\u011bp\u00ed ji pouze \u03b3-GT<br \/>\n\u2705 K\u00e1nonick\u00e1 referen\u010dn\u00ed slou\u010denina pro v\u00fdzkum bun\u011b\u010dn\u00e9 antioxida\u010dn\u00ed obrany<br \/>\n\u2705 Lyofilizovan\u00e1 redukovan\u00e1 forma USP t\u0159\u00eddy; CAS 70-18-8, MW 307,32<\/p>\n<p><strong>L-Glutathion (redukovan\u00fd \/ GSH)<\/strong> obsahuje v\u00fdzkumnou slou\u010deninu tripeptidu \u03b3-glutamyl-cysteinyl-glycin.<\/p>","protected":false},"featured_media":71535,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[5426],"product_tag":[6517,6516,5737,4442,6519,6494,6518],"class_list":{"0":"post-71470","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-peptides","7":"product_tag-antioxidant-peptide","8":"product_tag-glutathione-reduced","9":"product_tag-gsh","10":"product_tag-l-glutathione","11":"product_tag-redox-research","12":"product_tag-research-peptide","13":"product_tag-tripeptide-research-compound","15":"first","16":"instock","17":"shipping-taxable","18":"purchasable","19":"product-type-variable","20":"has-default-attributes"},"acf":[],"_links":{"self":[{"href":"https:\/\/medsbase.com\/cs\/wp-json\/wp\/v2\/product\/71470","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/medsbase.com\/cs\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/medsbase.com\/cs\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/medsbase.com\/cs\/wp-json\/wp\/v2\/comments?post=71470"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/medsbase.com\/cs\/wp-json\/wp\/v2\/media\/71535"}],"wp:attachment":[{"href":"https:\/\/medsbase.com\/cs\/wp-json\/wp\/v2\/media?parent=71470"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/medsbase.com\/cs\/wp-json\/wp\/v2\/product_brand?post=71470"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/medsbase.com\/cs\/wp-json\/wp\/v2\/product_cat?post=71470"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/medsbase.com\/cs\/wp-json\/wp\/v2\/product_tag?post=71470"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}