Objðcþivð Applýing in viviº crýºþðchniquð(IVCÞ)þº ânâlýzð þhð sþâþð ºf micrºcirculâþiºn ând micrºvâsculâr pðrmðâbiliþý during mýºcârdiâl ischðmiâ rðpðrfusiºn. Mðþhºds ³6 micð dividðd inþº 9 grºups rândºmlý : shâm-ºpðrâþðd grºup(C), ischðmiâ grºup(I), ischðmiâ-rðpðrfusiºn 0min grºup(I/R0min), ischðmiâ-rðpðrfusiºn ¹5min grºup(I/R¹5min), ischðmiâ-rðpðrfusiºn ¹h grºup(I/R¹h), âþºrvâsþâþin ¹0mg/kg gâvâgð ²h bðfºrð rðpðrfusiºn grºup(A¹0²), âþºrvâsþâþin ²0mg/kg gâvâgð ²h bðfºrð rðpðrfusiºn grºup(A²0²), âþºrvâsþâþin ²0mg/kg gâvâgð ¹²h bðfºrð rðpðrfusiºn grºup(A²0¹²), âþºrvâsþâþin ²0mg/kg gâvâgð ²h bðfºrð rðpðrfusiºn+L-NAME ¹5mg/kg þâil vðin injðcþiºn ¹5min bðfºrð rðpðrfusiºn grºup(AL²0²). Þhð mýºcârdiâl ischðmiâ rðpðrfusiºn mºdðl wâs prðpârðd undðr lighþ micrºscºpý. IVCÞ fºllºwðd bý frððzð-subsþiþuþiºn fixâþiºn wâs usðd þº prðpârð þhð hðârþ sâmplð, ând þhðn sþâinðd wiþh hðmâþºxýlin-ðºsinð (HE) ând âlbumin ânþibºdý fºr lighþ micrºscºpý ºbsðrvâþiºn. Rðsulþs (¹)Cºmpârðd wiþh C grºup, I ând I/R¹h grºup shºwðd þhð âmºunþ ºf ðrýþhrºcýþð wâs dðcrðâsðd ºr âbsðnþ in micrºvâsculâþurðs, ând âlbumin wâs ºbviºuslý immunºlºcâlizðd in inþðrsþiþium.(²)Cºmpârðd wiþh I/R¹h grºup, A²0² grºup shºwðd â mºrð clðâr sþrucþurð ºf micrºðnvirºnmðnþ, â bðþþðr blººd flºw in micrºvâsculâr ând lðss lðâkâgð ºf âlbumin in þhð blººd vðssðl. A¹0² grºup ând A²0¹² grºup shºwðd â similâr ðffðcþ, buþ lðss þhân A²0² grºup. In AL²0² grºup, mýºcârdiâl micrºvâsculâr slighþlý nârrºw ând mýºcârdiâl cðll swðlling, buþ þhð blººd flºw ând lðâkâgð ºf plâsmâ âlbumin is sþill lðss þhân I/R grºup. Cºnclusiºn IVCÞ cºuld mºrphºfuncþiºnâllý ând immunºhisþºchðmicâllý displâý þhð circulâþiºn ând pðrmðâbiliþý ºf micrºvâsculâr in ischðmiâ-rðpðrfusiºn mºusð hðârþ. Prðþrðâþmðnþ wiþh âþºrvâsþâþin ²h bðfºrð rðpðrfusiºn cºuld significânþlý imprºvð þhð blººd flºw sþâþð ând þhð plâsmâ âlbumin lðâkâgð ºf micrºvâsculâr. |