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ÈòÁã¿¡¼­ ½Å ÇãÇ÷/Àç°ü·ù ÈÄ Ç÷û Xanthine Oxidase Activity, Glutathione ¹× MalonyldialdehydeÄ¡ÀÇ º¯È­ The Change of Serum Level of Xanthine Oxidase Activity, Glutathione and Malonyldialdehyde following Renal Ischemia/Reperfusion Injury in the Rat

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Abstract

¼­·Ð
»çü½Å°ø¿©¿¡ ÀÇÇÑ ½ÅÀ̽ļúÀº ¼úÈÄ Ãʱ⿡ ¾à 10-60%¿¡¼­ ±Þ¼º¼¼´¢°ü±«»ç¿Í °°Àº ºÎÀÛ
¿ëÀÌ ³ªÅ¸³¯ ¼ö ÀÖÀ¸¸ç, ÀÌÁß ÀϺο¡¼­ ȸº¹ºÒ´ÉÀÇ ½Å¼Õ»óÀ¸·Î ÀÎÇÏ¿© À̽ĽÅÀÇ Á¦°Å¿Í °°
Àº Ä¡¸íÀûÀÎ °á°ú°¡ ÃÊ·¡µÉ ¼ö ÀÖ´Ù. ÀÌ·¯ÇÑ ºÎÀÛ¿ëÀÇ ÁÖµÈ ¿äÀÎÀº ¼ö¼ú Áß ½Åµ¿¸ÆÀÇ ÀϽÃ
Àû Â÷´Ü°ú Àç°ü·ù(ÇãÇ÷/Àç°ü·ù)¿¡ ÀÇÇÏ¿© È°¼º»ê¼Ò·ù(oxygen free radical, OFR)°¡ Áõ°¡µÇ¾î
½ÅÁ¶Á÷³» ÁöÁúÀÇ °ú»êÈ­¹ÝÀÀ°ú, ±×¸®°í Ç÷°ü³»ÇǼ¼Æ÷ ¹× ¹éÇ÷±¸ µîÀÇ È°¼ºÈ­·Î ÀÎÇÑ ¸é¿ª¹Ý
ÀÀÀÌ ÃÊ·¡µÇ¾î ȸº¹ºÒ´ÉÀÇ Á¶Á÷¼Õ»óÀÌ ÀϾ ¼ö ÀÖ´Â °ÍÀ¸·Î ¾Ë·ÁÁ® ÀÖ´Ù. ÀÌ¿Í °°ÀÌ ÇãÇ÷
/Àç°ü·ù ÈÄ ¾ß±âµÇ´Â Á¶Á÷¼Õ»óÀº OFRÀÇ Áõ°¡°¡ Ãʱ⿡ ÀϾ´Â °¡Àå Áß¿äÇÑ ¿äÀÎÀ̸ç, ÀÌ
ÀÇ Áõ°¡¸¦ Á¶±â¿¡ ¿¹ÃøÇÏ¿© ¿¹¹æÇÔÀ¸·Î½á ¿µ±¸ÀûÀÎ Á¶Á÷¼Õ»óÀÌ ÃÊ·¡µÇ´Â °ÍÀ» ¸·À» ¼ö ÀÖÀ»
°ÍÀ¸·Î ½Ã»çµÇ°í ÀÖ´Ù.
±×·¯³ª ¿À´Ã³¯ ÀÓ»óÀûÀ¸·Î ´Ù¾çÇÑ ½Å±â´É Æò°¡ ¹æ¹ýÀÌ ÀÌ¿ëµÇ°í ÀÖÀ¸³ª, ½Å ÇãÇ÷/Àç°ü·ù
ÈÄ ½Å¼Õ»óÀÇ ÁÖµÈ ¿äÀÎÀÎ OFRÁõ°¡¸¦ ¹Ý¿µÇÒ ¼ö ÀÖ´Â °Ë»ç¹ýÀº Àß ¾Ë·ÁÁöÁö ¾ÊÀº ½ÇÁ¤ÀÌ´Ù.
Ç÷¾×³» ¿ä¼ÒÁú¼Ò, Ç÷ûũ·¹¾ÆƼ´Ñ(Å©·¹¾ÆƼ´Ñ û¼ÒÀ², »ç±¸Ã¼ ¿©°úÀ²)µî°ú °°Àº »ýÈ­ÇÐÀû °Ë
»ç¹ýÀº ½Å±â´ÉÀÌ 50%ÀÌ»ó ¼Õ»óµÇ±â Àü±îÁö´Â Á¤»ó¼öÄ¡·Î ³ªÅ¸³¯ ¼ö ÀÖ°í, ÃÊÀ½ÆÄ°Ë»ç ¹×
¹æ»ç¼ºµ¿À§¿ø¼Ò¸¦ ÀÌ¿ëÇÑ °Ë»ç´Â ¼ö½ÅÁõ°ú °°Àº Æó»ö¼º º´º¯, ½ÅÁÖÀ§ Ç÷Á¾, ¹®ÇÕºÎÀ§ ¿ä´©
Ãâ, ½ÅÇ÷°üÇùÂø µî°ú °°Àº ÇغÎÇÐÀûÀÎ ÀÌ»óÀ¯¹« Áø´Ü¿¡´Â À¯¿ëÇÏÁö¸¸ Á¤·®ÀûÀ¸·Î ½Å±â´ÉÀ»
ÃøÁ¤ Çϱ⿡´Â ¾î·Á¿òÀÌ ÀÖ´Ù.
ÃÖ±Ù º» ±³½Ç¿¡¼­´Â ½Å ÇãÇ÷/Àç°ü·ù ÈÄ OFRÁõ°¡¸¦ ƯÀÌÇÏ°Ô ¹Ý¿µÇÒ ¼ö ÀÖ´Â »ýÈ­ÇÐÀû Áö
Ç¥¿¡ ´ëÇÑ ¿¬±¸¸¦ ½ÃÇàÇѹÙÀÖ´Ù. ½Å ¸¶¼âÁ¶Á÷À» ÀÌ¿ëÇÑ ¿¬±¸¿¡¼­ OFR°ú °ü·ÃµÈ xanthine
oxidase(XO)È°¼ºµµ ¹× Çü Àüȯºñ, OFRÀÇ Çص¶¿¡ °ü¿©ÇÏ´Â glutathione(GSH) ±×¸®°í ÁöÁúÀÇ
°ú»êÈ­¹ÝÀÀÀÇ ÃÖÁ¾ ´ë»ç»ê¹°ÀÎ malonyldialdehyde(MDA) ÇÔ·®ÀÌ ½Å ÇãÇ÷/Àç°ü·ù ÈÄ ½Å¼Õ»ó
ÀÇ Á¤µµ¸¦ ¹Ý¿µÇÔÀ» ½Ã»çÇÑ ¹Ù ÀÖÀ¸³ª, ½Å ¸¶¼âÁ¶Á÷À» ÀÌ¿ëÇÑ ¹æ¹ýÀº »ó´çÈ÷ ħ½ÀÀûÀ̹ǷÎ
ÀÓ»óÀûÀ¸·Î ÀÀ¿ëÇϱ⿡´Â ¹«¸®°¡ ÀÖ´Ù.
º» ¿¬±¸´Â ½Å ÇãÇ÷/Àç°ü·ù ÈÄ È°¼º»ê¼Ò·ù¿¡ ÀÇÇÑ Àç°ü·ù¼Õ»óÀ» ƯÀÌÇÏ°Ô ¹Ý¿µÇÒ ¼ö ÀÖ´Â
Ç÷û ÁöÇ¥¸¦ ¾Ë¾Æº¸±â À§ÇØ, ȺÁãÀÇ Ç÷û¿¡¼­ XO È°¼ºµµ ¹× ÇüÀüȯºñ, GSH, MDA ÇÔ·®ÀÇ
ÃøÁ¤¹ýÀ» È®¸³ÇÏ°í, À̵é ÁöÇ¥°¡ ½Å ÇãÇ÷/Àç°ü·ù ÈÄ OFR Áõ°¡¸¦ À¯ÀÇÇÏ°Ô ³ªÅ¸³»´ÂÁö ¾Ë¾Æ
º¸°íÀÚ ÇÏ¿´´Ù.
#ÃÊ·Ï#
Purpose : It has been suggested in our previous study that the level of xanthine
oxidase(XO) activity, glutathione(GSH) and malonydialdehyde(MDA) in renal tissue
following renal ischemia/reperfusion(I/R) could be used as marker of oxidant stress.
Present study was undertaken to investigate the serum level of XO activity. GSH and
MDA following renal I/R and to elucidate potential use of the serum level of GS
H and MDA as makers of renal function following I/R injury.
Materials and Methods : Male Sprague-Dawley rats(200-250gm) were divided into 3
groups : group A - occlusion of bilateral renal arteries for 60 min, group B -
pretreatment allopurinol(20mg/Kg). a radical scavenger, plus occlusion of renal arteries,
and group C(control group) - sham operation. In group A and B, recirculation of renal
arteries were performed for 30min. XO activity, xanthine dehydrogenase(XD) type
conversion ratio, level of GSH and MDA were measured from venous blood.
Results : Both XO activity(nM/mg/min) and XD type conversion ratio(%) were
increased in group A(XO; 0.173¡¾0.012, XD; 60.44¡¾4.32) and decreased in group B(XO;
0.136¡¾0.01, XD; 45.40¡¾4.78) compared to control group(XO; 0.153¡¾0.012, XD; 46.93¡¾
3.45). The level of GSH(¥ìM/g tissue), a scavenger of oxygen free radical(OFR), was
also decreased in group A(0.130¡¾0.021) compared to group B(0.179¡¾0.021) and control
group(0.186¡¾0.017). In addition, the level of MDA(nM/g tissue), which is a stable end
product of lipid peroxidation, was significantly increased in group A(0.076¡¾0.006)
compared to group B(0.057¡¾0.005) and control group(0.053¡¾0.004).
Conclusions : From these results, it is suggested that renal I/R injury is highly
correlated with the production of OFR. Furthermore. the serum levels of MDA and GSH
might be used as early markers of oxidant stress in association with renal I/R injury.

Å°¿öµå

Ischemia/Reperfusion injury; Oxygen free radicals; Serum; Renal function.;

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