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Gingko biloba extract°¡ C3H ¸¶¿ì½º ¼¶À¯À°Á¾ÀÇ ¿¡³ÊÁö ´ë»ç »óÅ¿¡ ¹ÌÄ¡´Â ¿µÇâ : »ýü³» 31P ÀÚ±â°ø¸í ºÐ±¤¹ýÀ» ÀÌ¿ëÇÑ ºÐ¼® The Effect of Gingko Biloba Extract on Energy Metabolic Status in C3H Mouse Fibrosarcoma : Evaluated by in vivo 31P Magnetic Resonance Spectroscopy

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ÇϼºÈ¯/Sung Whan Ha ±è¿øµ¿/¾È¿ëÂù/¹ÚÂùÀÏ/ÀÓÅÂȯ/ÀÌ´ë±Ù/Won Dong Kim/Yong Chan Ahn/Charn Il Park/Tae Hwan Lim/Tae Kuen Lee

Abstract

¸ñÀû: ÇöÀç±îÁö ¹æ»ç¼±¿¡ ´ëÇÑ Àú»ê¼Ò¼¼Æ÷ÀÇ °¨¼ö¼ºÀ» ³ôÀ̱â À§ÇÑ ¸¹Àº ½ÇÇèÀû ¹× ÀÓ»óÀû ¿¬±¸°¡ ÁøÇàµÇ¾î ¿ÔÀ¸³ª, ¾ÆÁ÷ ÀûÀýÇÑ ¹æ¹ýÀÌ °³¹ßµÇÁö ¸øÇÑ »óÅÂÀÌ´Ù. º» ¿¬±¸¿¡¼­´Â Ç÷°ü¼öÃà ÀÌ¿Ï ¹× Ç÷¾×Á¡µµ ÀúÇϸ¦ ÅëÇÏ¿© ¸»ÃÊ Ç÷·ù Áõ°¡ÀÛ¿ëÀ» °®°í ÀÖ´Â
Ginkgo
biloba extract (GBE)°¡ Á¾¾ç³» ´ë»ç»óÅ¿¡ ¾î¶°ÇÑ º¯È­¸¦ °¡Á®¿À´ÂÁö¸¦ 31P ÇÙÀڱ⠰ø¸í ºÐ±¤¹ýÀ» ÅëÇÏ¿© ¾Ë¾Æº¸°íÀÚ ÇÏ¿´´Ù.

¹æ¹ý: 100 §§¿¡¼­ 130 §§ÀÇ ¼¶À¯À°Á¾À» °®´Â 18¸¶¸®ÀÇ C3H ¸¶¿ì½º¸¦ °¢°¢ 9 ¸¶¸®¾¿ µÎ ±ºÀ¸·Î ºÐ¸®ÇÏ¿´´Ù. ÇÑ ±ºÀº GBE·Î Àüóġ¸¦ ÇÏÁö ¾Ê¾ÒÀ¸¸ç ³ª¸ÓÁö ´Ù¸¥ ÇÑ ±ºÀº 31P ÀÚ±â°ø¸íºÐ±¤¹ýÀ» ½ÃÇàÇϱâ 24½Ã°£ Àü¿¡ 100 §·/§¸ÀÇ GBE¸¦ º¹°­³»·Î
Åõ¿©ÇÏ¿©
Àüóġ¸¦ ÇÏ¿´´Ù. ¿ì¼± °¢ ±º¿¡¼­ 31P ÀÚ±â°ø¸íºÐ±¤¹ýÀ» ½Ç½ÃÇÏ¿© ´ëÁ¶ spectrumÀ» ¾ò¾úÀ¸¸ç ±× ÈÄ 100 §·/§¸ÀÇ GBE¸¦ ÀçÅõ¿© ÇÏ°í ¾à 1½Ã°£ ÈÄ¿¡ 31P ÀÚ±â°ø¸íºÐ±¤¹ýÀ» ´Ù½Ã ½Ç½ÃÇÏ¿´´Ù.

°á°ú: Àüóġ¸¦ ÇÏÁö ¾ÊÀº ±º¿¡¼­´Â GBE Åõ¿© ÀüÀÇ Æò±Õ pH, PCr/Pi, PME/ATP, Pi/ATP, PCr/(Pi£«PME) ¼öÄ¡¸¦ GBE Åõ¿© ÈÄ 1½Ã°£¿¡ ÃøÁ¤ÇÑ °ª°ú ºñ±³ÇÏ¿´À» ¶§ Åë°èÇÐÀûÀÎ Â÷ÀÌ°¡ ¾ø¾ú´Ù. ±×·¯³ª Àüóġ¸¦ ÇÑ ±º¿¡¼­´Â GBE Åõ¿© ÀüÀÇ Æò±Õ PCr/Pi, Pi/ATP,
PCr/(Pi£«PME)¼öÄ¡°¡ 0.49, 0.77, 0.17¿¡¼­ GBE Åõ¿© ÈÄ¿¡´Â 0.74, 0.57, 0.28·Î º¯È­ÇÏ¿´À¸¸ç ÀÌ´Â paired-t test»ó Åë°èÇÐÀûÀ¸·Î ÀǹÌÀÖ´Â Â÷ÀÌ¿´´Ù.

°á·Ð: Àüóġ¸¦ ÇÑ ±º¿¡¼­ GBEÀÇ ÀçÅõ¿©·Î ´ë»ç»óÅ°¡ ÇöÀúÈ÷ È£ÀüµÇ¾úÀ¸¸ç ÀÌ´Â °£Á¢ÀûÀ¸·Î GBE ¿¡ ÀÇÇÑ ¹æ»ç¼±°¨¼ö¼ºÀÇ Áõ°¡°¡ Ç÷·ù Áõ°¡ ¹× ÀÌ¿¡ µû¸¥ ´ë»ç»óÅ ȣÀü¿¡ ±âÀÎÇÔÀ» ³ªÅ¸³½´Ù.

Purpose: Gingko biloba extract (GBE), a natural product extracted from Gingko leaves, is known to increase the radiosensitivity of tumors. This radiosensitization probably arises from the increase in the peripheral blood flow by decreasing
the
blood viscosity and relaxing the vasospasm. The influence of a GBE on the metabolic status in fibrosarcoma ¥± (FSa¥±) of a C3H mouse was investigated using 31P magnetic resonance spectroscopy (MRS).

Materials and Methods: Eighteen C3H mice with fibrosarcoma ¥± (from 100 §§ to 130 §§) were prepared for this experiment. The mice were divided into 2 groups; one (9 mice) without a priming dose, and the other (9 mice) with a priming dose
of
GBE.
The GBE priming dose (100 §·/§¸) was administered by an intraperitoneal (i.p.) injection 24 hours prior to the measurement. First 31P MRS spectra were measured in the mice from each group as a baseline and test dose of GBE (100 §·/§¸)
was
then administered to each group. One hour later, the 31P MRS spectra were measured again to evaluate the change in the energy metabolic status.

Results: In the group without the priming dose, the mean pH, PCr/Pi, PME/ATP, Pi/ATP, PCr/(Pi£«PME) values 1 hour after the test dose were not changed significantly compared to the values at the baseline. However, in the group with the
priming
dose, the mean PCr/Pi, Pi/ATP, PCr/(Pi£«PME) values 1 hour after the test dose changed from the baseline values of 0.49, 0.77, 0.17 to 0.74, 0.57, 0.28 respectively. According to the paired t-test, the differences were statistically
significant.

Conclusion: The above findings suggest that the metabolic status is significantly improved after administering GBE if the priming dose is given 24 hours earlier. This shows that the radiosensitizing effect of GBE is based on the increase
of
tumor
blood flow and the improvement in the metabolic status.

Å°¿öµå

Ginkgo biloba extract; ¸¶¿ì½º ¼¶À¯À°Á¾; ¿¡³ÊÁö ´ë»ç; 31P ÀÚ±â°ø¸íºÐ±¤¹ý; Gingko biloba extract; Mouse fibrosarcoma; Energy metabolism; 31P magnetic resonance spectroscopy;

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