School of Neuroscience for Thai Youth

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˹éÒ¹Õéà»ç¹¢èÒǧҹÇԨѷÕè¾Õèá»Å¨Ò¡ÇÒÃÊÒÃÇԨѷҧ»ÃÐÊÒ·ÇÔ·ÂÒÈÒʵÃìºéÒ§ ¨Ò¡áËÅè§¢èÒǢͧʶҺѹ¡ÒÃÈÖ¡ÉÒ ÃÇÁ·Ñé§àÇçºä«µì·Ò§´éÒ¹»ÃÐÊÒ·ÇÔ·ÂÒÈÒʵÃìã¹µèÒ§»ÃÐà·È«Öè§ÁÕãËéÍèÒ¹ËÅÒ¡ËÅÒÂÁÒ¡¤ÃѺ Åͧà¢éÒä»´ÙµÒÁÅÔ§¤ì·Õè¾ÕèÊ׺¤é¹ÁÒ·Õè˹éÒ Link ¹éÍ§æ ¹Í¡¨Ò¡¨Ðä´é¤ÇÒÁÃÙé´éÒ¹»ÃÐÊÒ·ÇÔ·ÂÒÈÒʵÃìáÅéÇÂѧä´é½Ö¡ÀÒÉÒÍѧ¡ÄÉÍÕ¡·Ò§¹Ð¤ÃѺ

หมวกเย็น Olympic Cool Cap® System

เมื่อปลายเดือนธันวาคมปีที่แล้วองค์การอาหารและยาของประเทศสหรัฐอเมริกา (USFDA) ได้อนุมัติการวางตลาดของหมวกเย็นที่ว่านี้ในฐานะเครื่องมือทางการแพทย์ (medical device) เพื่อใช้รักษาทารกที่เกิดภาวะ  hypoxic-ischemic encephalopathy (HIE) ภาวะนี้เกิดจากสมองได้รับการบาดเจ็บ (brain damage) จากการที่เซลล์ประสาท (neurons) และเซลล์เกลีย (glia cells)ไม่ได้รับก๊าซอ๊อกซิเจนเพียงพอ โดยส่วนใหญ่ภาวะนี้เกิดขึ้นเมื่อระบบเลือดที่ไปเลี้ยงสมองถูกปิดกั้น ในประเทศสหรัฐอเมริกามีเด็กทารกที่ประสบภาวะนี้ประมาณ 5,000-9,000 คนในแต่ละปีซึ่งมีระดับความรุนแรงตั้งแต่ปานกลางจนถึงขั้นวิกฤติและหากเด็กที่แม้จะรอดชีวิตจากภาวะเหล่านี้ได้ก็จะประสบปัญหาความบกพร่องทางประชาน (ประชาน (cognition) เช่น การใช้ภาษา การจำ การคิด การอ่าน การใช้ปัญญา เป็นต้น) และปัญหาด้านการเคลื่อนไหวในเวลาต่อมา

 

  

 

เครื่องมือทางการแพทย์ชิ้นใหม่นี้เรียกว่า Olympic Cool Cap® System ผลิตโดยบริษัท Olympic Medical Corporation เครื่องมือนี้ได้รับการพัฒนาขึ้นเพื่อวัตถุประสงค์ในการป้องกันหรือลดความสูญเสียเมื่อสมองเกิดการบาดเจ็บจากภาวะ HIE โดยมีหลักการทำงานอย่างง่าย คือ มีท่อที่ทำให้น้ำมีความเย็นที่เรียกว่า water cooling channels ซึ่งจะทำให้เฉพาะส่วนศรีษะของทารกมีอุณหภูมิลดลงแต่ไปมีผลต่ออุณหภูมิร่างกายได้น้อยมาก จากข้อมูลขององค์การอาหารและยาของประเทศสหรัฐอเมริกากล่าวว่าบริษัทได้ศึกษาในเด็กทารกจำนวน 234 คนที่ใช้หมวกเย็นนี้พบว่ามีความปลอดภัยและมีประสิทธิภาพ มีอัตราการตายที่ลดลง และอัตราการเกิดภาวะความทุพพลภาพลดลงเมื่อเทียบกับผลการทดลองในกลุ่มควบคุม

 

อีกไม่นานอาจจะเห็นเครื่องมือทางการแพทย์ชิ้นนี้ใช้ในสถานพยาบาลบ้านเราก็เป็นได้ครับ

ขอบคุณแหล่งข่าว Neuroscience fo Kids

àÁ×èÍ¡Òê¡ÁǹêÍ¡àÍÒ·ìà«ÅÅì»ÃÐÊÒ· Knock Out Brain Cells

à»ç¹·Õè·ÃÒº¡Ñ¹´ÕÇèÒ¡Òê¡ÁǹÑé¹ÁÕ¤ÇÒÁàÊÕè§µèÍ¡ÒúҴà¨çº¢Í§ÊÁͧ ¾ºÇèҹѡÁÇÂÍÒªÕ¾»ÃÐÁÒ³ÃéÍÂÅÐ 20 »ÃÐʺ»Ñ­ËÒà¡Ô´¡ÒÃà¡Ô´ºÒ´à¨çºÊÁͧẺàÃ×éÍÃѧ (chronic traumatic brain injury) «Öè§ÃͺҴá¼Å¹Õéà¡Ô´¨Ò¡¡Òö١µèÍ«éÓæ à»ç¹àÇÅÒ¹Ò¹ ¹Í¡¨Ò¡¹ÕéÂѧ¾º¾ÂÒ¸ÔÊÀÒ¾·Õèã¡Åéà¤Õ§¡ÑºâäÍÑÅä«àÁÍÃì àªè¹ â»ÃµÕ¹ tau à¡Ô´¡ÒÃàµÔÁËÁÙè¿ÍÊ࿵ÁÒ¡¼Ô´»¡µÔ (hyperphosphorylation) ·ÓãËéà¡Ô´à»ç¹ neurofibrillary tangles ÀÒÂã¹à«ÅÅì áÅÐÁÕ¡ÒÃÊÐÊÁ¢Í§ beta-amyloid protein à¡Ô´à»ç¹ plaques ÀÒ¹͡à«ÅÅì  ·Ñé§¹ÕéÃдѺ¤ÇÒÁÃØ¹áç¢Í§»Ñ­ËÒ¡ç¢Ö鹡Ѻ ¨Ó¹Ç¹¤ÃÑé§·ÕèÈÃÕÉÐâ´¹µèÍ ªèǧÃÐÂÐàÇÅÒ·Õèâ´¹µèÍÂÇèÒ¹Ò¹à¾Õ§㴠ÃÇÁ·Ñé§·Ñ¡ÉÐ㹡ÒõèÍÂÁÇ¢ͧ¹Ñ¡ÁÇ´éÇ ¡ÒÃÈÖ¡ÉÒÇÔ¨ÑÂàªÔ§ÅÖ¡¶Ö§¼Å¡Ãзº¨Ò¡¡Òê¡ÁÇÂÂѧÁÕäÁèÁÒ¡¹Ñ¡ ´Ñ§¹Ñ鹹ѡÇԨѨ֧ä´éÈÖ¡ÉÒ㹹ѡÁÇÂÊÁѤÃàÅ蹪ÒÇÊÇÕà´¹«Öè§¾ºÇèÒ¶Ö§áÁé¨ÐÁÕ¡ÒÃÊÇÁËÁÇ¡¡Ñ¹¡ÃÐá·¡ÃÐËÇèÒ§¡Òê¡ÁÇÂáÅÐãªéàÇÅÒ㹡Òê¡ÁÇÂà¾Õ§ªèǧÊÑ鹿 ¡çÊÒÁÒö·ÓãËéà«ÅÅì»ÃÐÊÒ· (neurons) áÅÐà«ÅÅìà¡ÅÕ (glial cells) à¡Ô´¡ÒúҴà¨çºä´éàªè¹à´ÕÂǡѹ

 

¤³Ð¹Ñ¡ÇԨѨҡËÅÒÂʶҺѹ㹻ÃÐà·ÈÊÇÕà´¹¹Ó·ÕÁâ´Â Dr. Henrik Zetterberg ä´éÃÒ§ҹ¼Å§Ò¹ÇԨѷÕè¹èÒʹã¨àÃ×èͧ Neurochemical Aftermath of Amateur Boxing «Öè§µÕ¾ÔÁ¾ìã¹ÇÒÃÊÒà Archives of Neurology ©ºÑºà´×͹¡Ñ¹ÂÒ¹·Õè¼èÒ¹ÁÒ â´Â¹Ñ¡ÇÔ¨ÑÂä´éà¡çºµÑÇÍÂèÒ§¹éÓàÅÕé§»ÃÐÊÒ·áÅÐä¢ÊѹËÅѧ (cerebrospinal fluid; CSF) ¨Ò¡¹Ñ¡ÁÇÂÊÁѤÃàÅè¹·Ñé§ËÁ´ 14 ¤¹ áºè§à»ç¹ªÒ 11 ¤¹ áÅÐ Ë­Ô§ 3 ¤¹ ÀÒÂËÅѧ¨Ò¡·Õè¢Ö鹪¡ÁÇÂä´é»ÃÐÁÒ³ 7-10 Çѹ áÅÐËÅѧ¨Ò¡·Õè¹Ñ¡ÁÇÂÊÁѤÃàÅè¹ä´é¾Ñ¡à»ç¹àÇÅÒÊÒÁà´×͹áÅéÇ¡çµÃǨÇÑ´µÑÇÍÂèÒ§¹éÓàÅÕé§»ÃÐÊÒ·áÅÐä¢ÊѹËÅѧÍÕ¡¤ÃÑé§ ·Ñé§¹Õé¹Ñ¡ÇÔ¨ÑÂä´éà»ÃÕºà·ÕºµÑÇÍÂèÒ§¹éÓàÅÕé§»ÃÐÊÒ·áÅÐä¢ÊѹËÅѧÃÐËÇèÒ§¹Ñ¡ÁÇÂÊÁѤÃàÅ蹡Ѻ¡ÅØèÁ¤Çº¤ØÁ·Õèà»ç¹ªÒÂÊØ¢ÀÒ¾´Õ¨Ó¹Ç¹ 10 ¤¹ à¾×è͵ÃǨÇÑ´ÊÒÃà¤ÁÕ·Õèºè§ªÕé¶Ö§ÊÀÒÇСÒúҴà¨çº¢Í§à«ÅÅì»ÃÐÊÒ·áÅÐà«ÅÅìà¡ÅÕ ÇÖè§ä´éá¡è neurofilament light protein, tau protein, glial fibrillary acidic protein, phosphorylated tau, áÅÐ beta-amyloid protein 1-40 (A-beta [1-40]) ¡Ñº 1-42 (A-beta [1-42])

 

¾ºÇèÒà«ÅÅì»ÃÐÊÒ·ËÅÑè§ÊÒÃà¤ÁÕÊͧª¹Ô´à¾ÔèÁ¢Öé¹ ¤×Í neurofilament light protein áÅÐ tau  protein áÅÐà«ÅÅìà¡ÅÕÂËÅÑè§ÊÒà glial fibrillary acidic protein à¾ÔèÁ¢Öé¹ÍÂèÒ§ÁÕ¹ÑÂÊӤѭËÅѧ¨Ò¡¡Òê¡ÁÇÂä´éäÁè¹Ò¹ (7-10 Çѹ) àÁ×èÍà»ÃÕºà·Õº¡ÑºÃдѺÊÒÃà¤Áմѧ¡ÅèÒÇ㹪èǧ·Õèä´é¾Ñ¡áÅéÇà»ç¹àÇÅÒÊÒÁà´×͹ ¹Í¡¨Ò¡¹ÕéÂѧ¾ºÇèÒÃдѺÊÒÃà¤Áմѧ¡ÅèÒǨÐÁÕ»ÃÔÁÒ³à¾ÔèÁ¢Öé¹ÁÒ¡ËÒ¡¹Ñ¡ÁÇÂÊÁѤÃàÅè¹â´¹ª¡·ÕèÈÕÃÕÉÐà¡Ô¹ 15 ¤ÃÑé§ËÃ×Ͷ١ª¡·ÕèÈÃÕÉÐÍÂèÒ§áç  áÁéÇèҹѡÁÇÂÊÁѤÃàÅè¹ä´é¾Ñ¡à»ç¹àÇÅÒÊÒÁà´×͹¡çµÒÁÃдѺÊÒÃà¤Áմѧ¡ÅèÒÇ¡çÂѧ¡çÂѧÊÙ§¡ÇèÒÍÒÊÒÊÁѤêÒÂÊØ¢ÀÒ¾´Õ·ÕèäÁèä´éª¡ÁÇÂáµè·Ñé§¹ÕéÁÕ੾ÒÐÃдѺ¢Í§ neurofilament light protein à·èÒ¹Ñé¹·ÕèᵡµèÒ§ÍÂèÒ§ÁÕ¹ÑÂÊӤѭ

 

¨Ò¡¼Å¡Ò÷´Åͧ¹ÕéáÊ´§ãËéàËç¹ÇèÒ¡Òê¡ÁÇÂẺÊÁѤÃàÅ蹡ç·ÓãËéÊÁͧ¹Ñ¡ÁÇÂà¡Ô´¡ÒúҴà¨çºä´éàªè¹¡Ñ¹  áÅж֧áÁéÇèÒÃèÒ§¡Ò¤¹àÃÒ¨ÐÁÕ¡Ãкǹ¡ÒëèÍÁá«ÁµÑÇàͧµÒÁ¸ÃÃÁªÒµÔä´é¡çµÒÁ¡ÒúҴà¨çº¹Õé¡çÊÒÁÒöÍÂÙèä´é¹Ò¹¶Ö§ÊÒÁà´×͹ËÅѧ¨Ò¡ª¡ÁÇ ¨Ö§à»ç¹ä´éÇèҹѡÁÇÂÍÒªÕ¾ËÃ×͹ѡÁÇ·Õè¶Ù¡¹êÍ¡àÍҷ캹ÊѧàÇÕ¹¡ç¹èÒ¨ÐÁÕâÍ¡ÒÊà¡Ô´¡ÒúҴà¨çº¢Í§à«ÅÅì»ÃÐÊÒ·áÅÐà«ÅÅìà¡ÅÕÂÁÒ¡¡ÇèÒ¹Ñé¹

 

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1.       Henrik Zetterberg áÅФ³Ð, Neurochemical Aftermath of Amateur Boxing
Arch Neurol, Sep 2006; 63: ˹éÒ 1277 - 1280.

¹Ñ¡ÇÔ·ÂÒÈÒʵÃì¤é¹¾ºÊÒÃà¤ÁÕã¹ÊÁͧÊèǹ·Õèà¡ÕèÂÇ¢éͧ¡Ñº¡ÒÃàÁÒ

 ¹Ñ¡ÇÔ·ÂÒÈÒʵÃìªÒÇÍÍÊàµÃàÅÕÂá¶Å§ÇèÒ ä´é¾ºÊÒÃà¤ÁÕã¹ÊÁͧ·Õè·ÓãËéà¡Ô´ “ÍÒ¡ÒÃàÁҔ àÁ×èÍÃèÒ§¡ÒÂÃѺàÍÒáÍÅ¡ÍÎÍÅìà¢éÒÁÒ «Öè§·ÓãËéà¡Ô´¤ÇÒÁËÇѧ㹡ÒÃÃÑ¡ÉÒâäµÔ´àËÅéÒ ¹Ñ¡ÇÔ·ÂÒÈÒʵÃì·ÕèÈÙ¹ÂìÇÔ¨ÑÂÊÁͧ¢Í§Ê¶ÒºÑ¹ÎÒÇàÇÔÃì´ ¿ÅÍàÃÂì ¡ÅèÒÇÇèÒ ÊÒÃà¤ÁÕª×èÍ âÍàëԹ «Öè§¼ÅÔµã¹ÊÁͧÊèǹ·ÕèàÃÕ¡ÇèÒ äÎ⻸ÒÅÒÁÑÊ ´ÙàËÁ×͹¨Ðà»ç¹µÑÇàª×èÍÁÃÐËÇèÒ§¡ÒúÃÔâÀ¤áÍÅ¡ÍÎÍÅìáÅСÒÃµÔ´ÊØÃÒ ÊÒÃà¤Áմѧ¡ÅèÒÇÃÙé¨Ñ¡¡Ñ¹´ÕÇèÒªèÇÂãËéÊÁͧµÑ´ÊÔ¹ã¨ÇèÒàÁ×èÍäÃÃèÒ§¡Ò¨֧µéͧ¡ÒÃÍÒËÒà áµè¹ÒÂá͹´ÃÙÇì ÅÍÇìàù«ì ¹Ñ¡ÇԨѠ¡ÅèÒÇÇèÒ ¡Ò÷´Åͧã¹Ë¹ÙáÊ´§ãËéàËç¹ÇèÒÁѹÂѧàÃè§»¯Ô¡ÔÃÔÂÒ¡ÒÃàÁҢͧÃèÒ§¡Ò·Õèà¡Ô´¨Ò¡áÍÅ¡ÍÎÍÅì áÅСç¡ÃеØé¹ãËéÃèÒ§¡ÒÂÍÂÒ¡´×èÁàËÅéÒµèÍä»àÃ×èÍ æ ÍÕ¡´éÇ à¾ÃÒÐÇèÒâÍàëԹ¨ÐàÃè§ãËéà¡Ô´¤ÇÒÁÃÙéÊÖ¡à»ç¹ÊØ¢àÁ×èÍ´×èÁàËÅéÒ  ´Ñ§¹Ñé¹ ¡çÍÒ¨¨ÐãªéÂÒà¾×èÍʡѴ¡Ñé¹Ãкº¡ÒüÅÔµâÍàëԹã¹ÃèÒ§¡ÒÂÁ¹ØÉÂì  «Ö觨зÓãËéäÁèÍÂÒ¡àËÅéÒáÅлéͧ¡Ñ¹ÁÔãËéà¡Ô´¤ÇÒÁÍÂÒ¡«éÓàÁ×èÍÃèÒ§¡Ò¢ͧ¼ÙéµÔ´àËÅéÒàÃÔèÁ¿×é¹µÑÇ  ˹ٷ´Åͧ·ÕèãËé¡Ô¹àËÅéÒä´éµÅÍ´àÇÅÒ·Õèµéͧ¡ÒèÐËÂØ´¡Ô¹àËÅéҷѹ·ÕàÁ×èÍä´éÂÒʡѴ¡Ñé¹âÍàëԹà¢éÒä» áÅСç¨ÐäÁè¡ÅѺÁÒµÔ´àËÅéÒ«éÓÍÕ¡àÁ×èÍ¡ÅѺä»ÂѧÊÀÒ¾ÊÔè§áÇ´ÅéÍÁ·Õè¡ÃеØé¹ãËé´×èÁÍÕ¡¤ÃÑé§  ÅÍàù«ì¤Ò´ÇèÒ¡Òþº¤Ø³ÊÁºÑµÔãËÁè¢Í§âÍàëԹ¨Ð·ÓãËéà¡Ô´¡ÒÃÈÖ¡ÉÒÁÒ¡¢Öé¹à¾×è͹Óä»ÊÙè¡ÒÃÃÑ¡ÉÒ·Õèä´é¼Å

·ÕèÁÒ Êӹѡ¢èÒÇä·Â http://tna.mcot.net/

ÈÙ¹ÂìÇÔ¨ÑÂÊÁͧ¢Í§Ê¶ÒºÑ¹ÎÒÇàÇÔÃì´ ¿ÅÍàÃÂì http://www.hfi.unimelb.edu.au/

Scientists at Melbourne’s Howard Florey Institute have discovered a system in the brain that stops an alcoholic’s craving for alcohol, as well as prevent relapse once they have recovered from alcohol addiction.

The ‘Orexin’ system is a group of cells in a part of the brain called the hypothalamus. These cells produce Orexin, which was originally implicated in the regulation of feeding, but it soon became apparent that Orexin was also involved in the ‘high’ felt after drinking alcohol or taking illicit drugs.

In studies conducted with rats, Dr Andrew Lawrence and his Florey colleagues used a drug that blocked Orexin's euphoric effects in the brain and the results were remarkable.

“In one experiment, rats that had alcohol freely available to them stopped drinking it after receiving the Orexin blocker.” Dr Lawrence said.

“In another experiment, rats that had gone through a detox program and were then given the Orexin blocking drug, did not relapse into alcohol addiction when they were reintroduced to an environment in which they had been conditioned to associate with alcohol use.

“Orexin reinforces the euphoria felt when drinking alcohol, so if a drug can be developed to block the Orexin system in humans, we should be able to stop an alcoholic’s craving for alcohol, as well as preventing relapse once the alcoholic has recovered,” he said.

Dr Lawrence said that this research could also lead to treatments for eating disorders, such chronic over-eating, which leads to obesity.

“Our research shows that alcohol addiction and eating disorders set off common triggers in the brain, so further investigations may uncover drug targets in the Orexin system to treat both conditions,” Dr Lawrence said.

The Florey scientists are now conducting multiple experiments to discover the precise circumstances that activate the Orexin system.

“To explore this discovery further we are now investigating how different experimental paradigms and environmental situations impact on the Orexin system, which will hopefully pinpoint therapeutic drug targets,” Dr Lawrence said.

“Before a therapeutic Orexin-blocking drug can be developed, we need to ensure that it will be safe to use in the long-term and that issues surrounding a person’s compliance in taking the drug are considered,” he said.

According to the World Health Organisation, alcohol is one of the most widely used and abused substances in the world and causes as much, if not more death and disability as measles, malaria, tobacco, or illegal drugs.

Dr Lawrence and his colleagues were the first in the world to demonstrate the Orexin system’s involvement in alcohol addiction and their research paper was recently published in the prestigious British Journal of Pharmacology. Dr Lawrence’s paper was downloaded 658 times by researchers from around the world in the first three months of its publication, making it the most downloaded research paper in that issue and supporting the research’s importance.

The Howard Florey Institute is Australia’s leading brain research centre. Its scientists undertake clinical and applied research that can be developed into treatments to combat brain disorders, and new medical practices. Their discoveries will improve the lives of those directly, and indirectly, affected by brain and mind disorders in Australia, and around the world. The Florey’s research areas cover a variety of brain and mind disorders including Parkinson’s disease, stroke, motor neuron disease, addiction, epilepsy, multiple sclerosis, autism and dementia.

¤ÇÒÁÂ×´ËÂØè¹¢Í§ÊÁͧ Brain Plasticity

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 È.´Ã.»ÔÂÐÃѵ¹ì â¡ÇÔ·µÃ¾§Èì ¨Ò¡Ë¹èÇ»ÃÐÊÒ·ÇÔ·ÂÒÈÒʵÃì ¤³ÐÇÔ·ÂÒÈÒʵÃì ÁËÒÇÔ·ÂÒÅÑÂÁËÔ´Å ä´é¹ÓËÑÇ¢éÍ “¡ÒÃÇÔ¨ÑÂà¡ÕèÂǡѺÊÁͧáÅСÒÃàÃÕ¹ÃÙé” ÁÒÍÀÔ»ÃÒÂàÃ×èͧ “·ÓÍÂèÒ§äÃãË餹ä·Â©ÅÒ´” ã¹ È.´Ã.»ÔÂÐÃѵ¹ì â¡ÇÔ·µÃ¾§Èì ¨Ò¡Ë¹èÇ»ÃÐÊÒ·ÇÔ·ÂÒÈÒʵÃì ¤³ÐÇÔ·ÂÒÈÒʵÃì ÁËÒÇÔ·ÂÒÅÑÂÁËÔ´Å ä´é¹ÓËÑÇ¢éÍ “¡ÒÃÇÔ¨ÑÂà¡ÕèÂǡѺÊÁͧáÅСÒÃàÃÕ¹ÃÙé” ÁÒÍÀÔ»ÃÒÂàÃ×èͧ “·ÓÍÂèÒ§äÃãË餹ä·Â©ÅÒ´” 㹡ÒûÃЪØÁÇÔªÒ¡Òà “¾ÅѧÊÁͧ ¾ÅѧªÒµÔ” ·Õè¨Ñ´¢Öé¹â´Â¡Í§·Ø¹ÈÒʵÃÒ¨ÒÃÂì »ÃÐʾ Ãѵ¹Ò¡Ã ³ ¤³ÐÇÔ·ÂÒÈÒʵÃì ÁËÒÇÔ·ÂÒÅÑÂÁËÔ´Å à¾×èÍà¼Âá¾Ãè¤ÇÒÁÃÙé´éÒ¹»ÃÐÊÒ·ÇÔ·ÂÒÈÒʵÃì (Neuroscience) ¡ÒþѲ¹ÒÊÁͧ áÅмšÃзº·ÕèÁÕµèÍ¡ÒþѲ¹Ò»ÃÐà·È

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