137. Diet and the evolution of the brain ¨ç

Fish and no chips the wonders of docosahexaenoic acid May 27th 2010 The Economist
137-1-643
TO PIN one big evolutionary shift on a particular molecule is ambitious. To pin two on it is truly audacious. Yet doing so was just one of the ideas floating around at ¡°A Celebration of DHA¡± in London this week. The celebration in question was a scientific meeting, rather than a festival. It was definitely, however, a love-in. It was held on May 26th and 27th at the Royal Society of Medicine to discuss the many virtues of docosahexaenoic acid, the most important of that fashionable class of dietary chemicals, the omega-3 fatty acids.
DHA is a component of brains, particularly the synaptic junctions between nerve cells, and its displacement from modern diets by the omega-6 acids in cooking oils such as soya, maize and rape is a cause of worry. Many researchers think this shift—and the change in brain chemistry that it causes—explains the growth in recent times of depression, manic-depression, memory loss, schizophrenia and attention-deficit disorder. It may also be responsible for rising levels of obesity and thus the heart disease which often accompanies being overweight.
Michael Crawford, a researcher at the Institute of Brain Chemistry and Human Nutrition in London, believes, however, that DHA is even more important than that. He suggests that it was responsible for the existence of nervous systems in the first place, and that access to large quantities of the stuff was what permitted the evolution of big brains in mankind¡¯s more recent ancestors.

A. ¾îÈÖ
evolutionary shift ÁøÈ­·ÐÀû º¯È­. pin on °íÁ¤½ÃŰ´Ù.
molecule ÝÂí­(ºÐÀÚ). audacious ´ë´ãÇÑ, äÑù»ÙíìÑ(¾ÈÇϹ«ÀÎ)ÀÇ, »·»·½º·¯¿î.
float ¶ß´Ù, Ç¥·ùÇÏ´Ù, ¶°¿À¸£´Ù.
celebration ÃàÇÏ, ð®îð(Á¦Àü). in question ¹®Á¦ÀÇ.
definitely ºÐ¸íÈ÷. love-in »ç¶ûÀÇ ¸ðÀÓ. society Çùȸ.
the Royal Society of Medicine ¿µ±¹ ¿Õ¸³ÀÇÇÐÇÐȸ.
virtue ÀåÁ¡, È¿´É, ¹Ì´ö. dietary ½Ä»çÀÇ, À½½ÄÀÇ. component à÷ÝÂ(¼ººÐ).
synaptic junctions ½Å°æ¼¼Æ÷ Àü´ÞÀÚ. cf. synapsis ½Å°æ¼¼Æ÷ ¿¬Á¢ºÎ. junction Á¢ÇÕ.
displacement ´ëü, ÇØ°í, ¸éÁ÷, ï®öÇ(ÀüÄ¡). maize ¿Á¼ö¼ö.
rape êúóø(À¯Ã¤). chemistry È­ÇÐÀû ¼ºÁú, È­ÇÐ.
depression ¿ì¿ïÁõ. manic-depression ðâê¦Ü»(Á¶¿ïº´).
schizophrenia Á¤½ÅºÐ¿­Áõ. disorder Áúº´. deficit ºÎÁ·¾×, °áÇÌ.
attention-deficit disorder ÁÖÀǰáÇÌÁõ. obesity ºñ¸¸.
accompany µ¿¹ÝÇÏ´Ù. nutrition ¿µ¾ç. stuff Àç·á, ¹°Áú.
ancestor ðÓß¾(Á¶»ó).

B. ÓÞëù(´ëÀÇ)
(½Åü Á¶Á÷ÀÇ) ƯÁ¤ ºÐÀÚ¿¡ ÇϳªÀÇ Å« ÁøÈ­·ÐÀû º¯È­¸¦ Áý¾î³Ö´Â (ÀÏÀ¸Å°´Â) °ÍÀº ¾ß½ÉÂù ÀÏÀÌ´Ù. ±×°Í¿¡´Ù µÎ °³¸¦ ³Ö´Â °ÍÀº ´ë´ãÇÑ ÀÏÀÌ µÈ´Ù. ±×·¯³ª ±×·¸°Ô ÇÏ´Â °ÍÀÌ À̹ø ÁÖ LondonÀÇ ¡°DHA ÃàÇÏȸÀÇ¡±íÞ(Àå)¿¡¼­ ¶°´Ù´Ï´Â ¾ÆÀ̵ð¾î ÁßÀÇ Çϳª¿´´Ù. ¹®Á¦ÀÇ ±× ȸÀÇ´Â ÃàÁ¦¶ó±âº¸´Ù´Â °úÇÐȸÀÇ¿´´Ù. ±×·¯³ª ±× ȸÀÇ´Â ºÐ¸íÈ÷ »ç¶ûÀÇ ¸ðÀÓÀ̾ú´Ù. ±× ¸ðÀÓÀº Àαâ ÀÖ´Â ½ÄǰȭÇй°ÁúÀÎ omega-3Áö¹æ»ê Áß¿¡¼­ °¡Àå Áß¿äÇÑ Áö¹æ»êÀÎ docosahexaenoic acid(DHA)ÀÇ ¸¹Àº È¿´É¿¡ °üÇØ¼­ ³íÀÇÇϱâ À§ÇÏ¿© 5¿ù26Àϰú 27ÀÏ¿¡ ¿µ±¹Çмú¿ø ÀÇÇÐ ÇÐȸ¿¡¼­ °³ÃֵǾú´Ù.
DHA´Â Òà(³ú)ÀÇ ±¸¼º¼ººÐÀÌ¸ç Æ¯È÷ ½Å°æ¼¼Æ÷¸¦ ¿¬°áÇØÁÖ´Â Á¢ÇÕºÎÀÇ ¼ººÐÀε¥ Çö´ëÀÇ ½Ä´Ü¿¡¼­ ÓÞÔç(´ëµÎ)¿Í ¿Á¼ö¼ö ¹× À¯Ã¤ ±â¸§ ¼Ó¿¡ Æ÷ÇԵǾî ÀÖ´Â omega-6 ß«(»ê)ÀÇomega-3Áö¹æ»ê ´ëü´Â éØÕç(¿ì·Á)ÀÇ ¿øÀÎÀÌ µÇ°í ÀÖ´Ù. ´Ù¼öÀÇ ¿¬±¸ÀÚµéÀº ÀÌ·¯ÇÑ º¯È­´Â-ÀÌ·± ´ëü°¡ ¿øÀÎÀÌ µÇ´Â ³úÀÇ È­ÇÐÀû ¼ºÁúÀÇ º¯È­-ÃÖ±Ù¿¡ ¿Í¼­ ¿ì¿ïÁõ, Á¶¿ïÁõ, ±â¾ï»ó½ÇÁõ, Á¤½ÅºÐ¿­Áõ, ÁÖÀÇ·Â °áÇÌÁõ µîÀÌ Áõ°¡ÇÏ´Â ¿øÀο¡ ´ëÇÑ ¼³¸íÀ» Á¦°øÇÑ´Ù°í »ý°¢ÇÑ´Ù. À̰ÍÀº ¶ÇÇÑ ºñ¸¸°ú ºñ¸¸¿¡ Á¾Á¾ µ¿¹ÝµÇ´Â ½ÉÀåÁúȯÀÇ Áõ°¡¿¡µµ Ã¥ÀÓÀÌ ÀÖ´Â °Í °°´Ù.
±×·¯³ª London¿¡ ÀÖ´Â Institute of Brain Chemistry and Human Nutrition(³úÀÇ È­ÇÐÀû ¼ºÁú ¹× Àΰ£ÀÇ ¿µ¾ç ¿¬±¸¼Ò)ÀÇ ¿¬±¸¿øÀÎ Michael Crawford´Â DHA´Â ÀÌ°Í º¸´Ùµµ ÈξÀ ´õ Áß¿äÇÏ´Ù°í ¹Ï´Â´Ù. ±×´Â ù° DHA´Â ½Å°æÁ¶Á÷ÀÇ »ýÁ¸¿¡ ´ëÇÑ Ã¥ÀÓÀ» Áö°í ÀÖÀ¸¸ç, ´Ù·®ÀÇ DHA¼·Ãë°¡ º¸´Ù ÃÖ±ÙÀÇ ÀηùÀÇ Á¶»óÀÇ Å« ³úÀÇ ÁøÈ­¸¦ °¡´ÉÇÏ°Ô ÇÏ¿´´Ù°í ÁÖÀåÇÑ´Ù.
  • Æ®À§ÅÍ
  • ÆäÀ̽ººÏ
  • ¡èÀ§·Î
Copyright ¨Ï Á¶°©Á¦´åÄÄ - ¹«´ÜÀüÀç ¹× Àç¹èÆ÷ ±ÝÁö
´ñ±Û´Þ±â ´ñ±Û¾²±â ÁÖÀÇ»çÇ×

´ñ±Û´Þ±â´Â ·Î±×ÀÎÈÄ »ç¿ëÇÏ½Ç ¼ö ÀÖÀ¸¸ç, ³»¿ëÀº 100ÀÚ À̳»·Î Àû¾îÁֽʽÿÀ. ±¤°í, ¿å¼³, ºñ¼Ó¾î, ÀνŰø°Ý°ú ÇØ´ç ±Û°ú °ü·Ã ¾ø´Â ±ÛÀº »çÀüÅ뺸¾øÀÌ »èÁ¦µË´Ï´Ù.

PC ¹öÀü