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研究发现摄入高糖饮食或影响大脑中多巴胺的作用_我的网站

A |     摄入太多糖与一些健康问题有关，包括胰岛素抵抗、2型糖尿病和某些癌症的发展、心脏病风险增加、视力下降等。密歇根大学的新研究发现，它还可能影响大脑中多巴胺的作用。

B | 在苍蝇、啮齿类动物和人类的大脑内，有依赖多巴胺这种神经递质来处理甜味食物的神经回路。

C | 研究发现，当摄入高糖饮食时，苍蝇大脑中的奖励信号要么延迟，要么减少，削弱了它们对食物的饱腹感，增加了它们的食量。研究人员发现，当这些奖励信号减少时，研究中的苍蝇就不会感到那么满足，最终会连续吃上几个小时......正如预料的那样，吃得太多的苍蝇最后都长胖了。    More than 100 years after many of Tulsa's Black residents were killed and their businesses were destroyed by white rioters, the community, including a woman who survived the massacre, is still finding ways to rebuild and seek justice.Between May 31 and June 1, 1921, white Tulsa residents set fire and bombed several square blocks of the city, including Greenwood District, which was known as Black Wall Street because of its successful shops and businesses owned by Tulsa's Black residents.An estimated 300 Black residents were killed and thousands were left homeless after the Tulsa massacre, according to historians.Alicia Odewale, a professor of archeology at the University of Tulsa, is leading a project to dig up Greenwood's past and told GMA 3's DeMarco Morgan, a Tulsa native, that she's already made some shocking discoveries."We found bullets and barbed wire next to doll parts next to lined up toys, next to marbles," she said. "They tried to wipe out families and children.""The artifacts are bearing witness to things that we don't have in our history books," she added.Tiffany Crutcher, an activist, said she's been working to raise awareness of what happened and fight for justice. She has traveled to Congress with survivors and their families on multiple occasions to ensure that their stories are never forgotten."They sat there saying, 'We believe we deserve justice. We still believe in America,' even though they've been through the worst times," Crutcher said.In July, an Oklahoma judge dismissed a lawsuit filed by survivors and their families that sought reparations for the massacre. The decision has been appealed by the plaintiff's attorneys.After last week's passing of Hughes Van Ellis at 102, Lessie Benningfield "Mother" Randle, and Viola Fletcher, 109, are now the last of two living survivors.Lawanna Penny, Randle's granddaughter, said she promised her grandmother that even though the reparations suit has been dismissed, she and others wouldn't stop fighting for justice."I told her, 'We're not going anywhere,' she said. "We want to leave a legacy for her to build up North Tulsa, build it up back the way it used to be."Randle turns 109 next month and she told GMA 3 that she has one wish."I would like to see all of my people here…trying to make the situation better," she said. "Bring some of those things to life so people will know that it's really is true, because there's room for a lot more improvement."。幸运的是，研究发现，用更健康的饮食取代高糖饮食，可以逆转这种抑制作用，神经回路恢复了敏感度，食物消耗最终减少。这可能有助于解释以下这种情况：许多人报告说，当他们改用像生酮饮食这样的低碳水化合物饮食方案时，他们感到食欲减少。

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