å¿ã®ãã¬ãã€ãªãã£ã¯ã¹
è žã®äžã«ãã现èïŒè žå 现èïŒãã«ããã«èå ã济ã³ãŠããŸããè žã®äžã«ã¯ç¡æ°ã®çŽ°èãããŸããããããæã ã®è žã®å ·åãäœã®å¥åº·ãä¿ã£ãŠããŸãããã®ãããè žå 现èãæŽãããšããªãã®èª¿åãè¯ããªããšããã ãã§ãªããå¥åº·ã«ãè¯ãã®ã§ã¯ãªãããšèšãããæè¿ã§ã¯å ç«åãäžãããšããããããšå®£äŒãããŠããŸããããã«ãè žå 现èã¯è³ãšã®é¢ä¿ãããã®ã§ã¯ãªãããšæè¿ã¯ç 究ãããŠããã粟ç¥ç§ã®ç 究æ¥çã§ã泚ç®ãããŠããŠããŸãã
ãã®èŸºã¯ãã€ã¯ããã€ãªãŒã ãšããåèªãšãé¢ä¿ããŠããŸããç§ãã¡ã®äœã«ã¯ç¡æ°ã®çŽ°èãã€ãŸãã¯åŸ®çç©ãäœã¿çããŠããŠããããç§ãã¡ã®äœãå®ãåããããŠãããŠããŸããããããç¡æ°ã®åŸ®çç©ãã¡ãäœãã·ã¹ãã ããã€ã¯ããã€ãªãŒã¿ãšåŒã³ããã®éºäŒåã«æ³šç®ããèšèããã€ã¯ããã€ãªãŒã ã§ãããŸããã¡ãã£ãšæœè±¡çãªæŠå¿µã«ãªãã®ã§åããã«ãããã§ãããããã¯äœã«ãã现èãå šéšã²ã£ããããŠè¡šçŸããŠãããšããç解ã§è¯ããšæããŸãã
ãããã现èã®äžã§ãè žã®çŽ°èã泚ç®ã济ã³ãŠããã®ã§ããä»åã¯ãè žå 现èãæŽãããšäžå®ããã€çç¶ãªã©ãæ¹åããããããããªããšããã¢ã€ã«ã©ã³ãã®ç 究ã玹ä»ããŸããã¡ãªã¿ã«ãããã¯ããºãã®åç©å®éšã¬ãã«ã®è©±ã§ããããæªæ¥ã®å¯èœæ§ãè¿œæ±ããç 究ãšãã颚ã«ç解ããŠãã ããã
åŒçšæç®ïŒBurokas et al. Targeting the Microbiota-Gut-Brain Axis: Prebiotics Have Anxiolytic and Antidepressant-like Effects and Reverse the Impact of Chronic Stress in Mice. Biol Psychiatry. 2017ïŒèè ãè«æã¿ã€ãã«ãéèªåãçºè¡šå¹ŽïŒ
è žå 现èã¯ãªãªãŽç³ã§æŽããããšãã§ãããšèšãããããã¯ãã¬ãã€ãªãã£ã¯ã¹ãªã©ãšãåŒã°ããŸãããªãªãŽç³ã«ã¯è²ã ãªçš®é¡ããããŸãããã§ãã䜿ããããã®ã¯ãã«ã¯ããªãªãŽç³ãšã¬ã©ã¯ããªãªãŽç³ã§ãããã®ç 究ã§ã¯ãããºãïŒããŠã¹ïŒã«ããã«ã¯ããªãªãŽç³ãšã¬ã©ã¯ããªãªãŽç³ã3é±éã«ããã£ãŠäžããŸããããã«ãäžéšã®ããºããã¡ã«ã¯ããããŠå¿ççã¹ãã¬ã¹ãäžããŸãïŒã¡ãã£ãšãããããã§ããïŒããããŠãããºãã®è¡åã調ã¹ããšãšãã«ãè žå 现èïŒãã€ã¯ããã€ãªãŒã¿ïŒãè¡æ¶²äžã®ã³ã«ãã³ã¹ããã³ãšããã¹ãã¬ã¹ã«é¢ãããšããããã«ã¢ã³ãªã©ãäœã®å ·åããããããšæ€æ»ãããŸããã
ãããšããã«ã¯ããªãªãŽç³ãšã¬ã©ã¯ããªãªãŽç³ã®äž¡æ¹ãäžãããšãããããäžããªãã£ãããºããããäžå®ããã€çç¶ãè¡šããããªè¡åãå°ãªããšããçµæãåŸãããŸããããŸãããããããªãªãŽç³ãäžããæ¹ããã¹ãã¬ã¹ãã«ã¢ã³ã§ããã³ã«ãã³ã¹ããã³ãæžå°ãããšã®ããšãã©ãããããªãªãŽç³ãäžãããšãè³ã®æµ·éŠ¬ãèŠåºäžéšãšãã£ãææ æ©èœã«é¢ä¿ã®æ·±ãå Žæã§éºäŒåã®çºçŸãå€åããããšãåãããŸããïŒéºäŒåã¯èº«äœã®èšèšå³ã§ããããã€ãå šãŠã䜿ãããŠããããã§ã¯ãªããæãšå Žåã«ãã£ãŠäœ¿ãããå Žæãå€ãããŸãããªãªãŽç³ã§ãããå€åãããšããããšã§ãïŒãããã ãã§äœãçµè«ãåºããšãããŸã§ã¯ãããŸããããã©ããããªãªãŽç³ã¯è³ããã«ã¢ã³ãã©ã³ã¹ã«åœ±é¿ãã粟ç¥çã«è¯ãå¹æããããããšãã仮説ãå°ãåºãããšã¯ã§ããŸããããå°ãç 究ãé²ããæçµçã«ã¯äººéã®è³ããã«ã¢ã³ãã©ã³ã¹ã«è¯ãå¹æãããã®ããã¹ãã¬ã¹ãåããããããã®ãã©ãããåãã£ãŠãããšè¯ãã§ããã