<?xml version="1.0" encoding="UTF-8"?><?xml-stylesheet href="/rss.xsl" type="text/xsl"?><rss version="2.0" xmlns:content="http://purl.org/rss/1.0/modules/content/"><channel><title>克罗恩病 | 知识分享官</title><description>聚合全网优质知识内容，持续更新AI科普、编程小知识、医学健康、科学前沿、心理成长、外刊精选、设计资源与实用干货，帮助用户高效获取有价值的学习资料和知识分享。</description><link>https://learn.88lin.eu.org</link><item><title>肠道“产氢主力”易主！《自然》子刊揭开“排气”背后的健康密码提起肠道气体，你可能只想到尴尬的“排气”</title><link>https://learn.88lin.eu.org/posts/CNSmydream-445</link><guid isPermaLink="true">https://learn.88lin.eu.org/posts/CNSmydream-445</guid><pubDate>Wed, 29 Oct 2025 00:00:36 GMT</pubDate><content:encoded>&lt;div class=&quot;image-list-container image-list-even&quot;&gt;
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    &lt;/div&gt;&lt;div class=&quot;tgme_widget_message_text js-message_text&quot;&gt;肠道“产氢主力”易主！《自然》子刊揭开“排气”背后的健康密码&lt;br /&gt;&lt;br /&gt;提起肠道气体，你可能只想到尴尬的“排气”。然而，研究显示，人每天释放的气体中近一半是氢气 ，它不仅制造声响，更是肠道健康的“隐藏驱动力” 。近日，《自然·微生物学》上的一项研究揭示了肠道产氢的主力军 。&lt;br /&gt;&lt;br /&gt;该研究发现，一种名为B组[FeFe]-氢化酶的酶是健康肠道产氢的绝对主力 。它广泛存在于拟杆菌属（Bacteroides）等主要有益菌群中 ，通过一种涉及铁和“铁氧还蛋白”（ferredoxin）的反应来支持细菌发酵生长 。&lt;br /&gt;&lt;br /&gt;这一发现的意义重大。数据显示，健康人群的肠道中B组氢化酶含量丰富，但在克罗恩病患者体内则显著减少，并被其他产氢酶（如A1组）所取代。这种产氢模式的紊乱是疾病的结果还是原因，将是未来的研究重点。&lt;br /&gt;&lt;br /&gt;&lt;blockquote&gt;以前只知道它“易燃易爆”，没想到还是个“健康帮手”。&lt;/blockquote&gt;&lt;br /&gt;&lt;br /&gt;来源：&lt;a href=&quot;https://doi.org/10.1038/s41564-025-02154-w&quot; target=&quot;_blank&quot; rel=&quot;noopener&quot; title=&quot;Nature Microbiology&quot;&gt;Nature Microbiology&lt;/a&gt;&lt;br /&gt;&lt;br /&gt;&lt;a href=&quot;/search/result?q=%23%E8%82%A0%E9%81%93%E5%BE%AE%E7%94%9F%E7%89%A9&quot; title=&quot;#肠道微生物&quot;&gt;#肠道微生物&lt;/a&gt; &lt;a href=&quot;/search/result?q=%23%E6%B0%A2%E6%B0%94%E4%BB%A3%E8%B0%A2&quot; title=&quot;#氢气代谢&quot;&gt;#氢气代谢&lt;/a&gt; &lt;a href=&quot;/search/result?q=%23%E5%85%8B%E7%BD%97%E6%81%A9%E7%97%85&quot; title=&quot;#克罗恩病&quot;&gt;#克罗恩病&lt;/a&gt;&lt;br /&gt;&lt;br /&gt;&lt;i class=&quot;emoji&quot;&gt;&lt;b&gt;🧬&lt;/b&gt;&lt;/i&gt; &lt;a href=&quot;https://t.me/CNSmydream&quot; target=&quot;_blank&quot; rel=&quot;noopener&quot; title=&quot;频道&quot;&gt;频道&lt;/a&gt; ｜ &lt;i class=&quot;emoji&quot;&gt;&lt;b&gt;🧑‍🔬&lt;/b&gt;&lt;/i&gt; &lt;a href=&quot;https://t.me/CNSmydream2&quot; target=&quot;_blank&quot; rel=&quot;noopener&quot; title=&quot;群组&quot;&gt;群组&lt;/a&gt; ｜ &lt;i class=&quot;emoji&quot;&gt;&lt;b&gt;📨&lt;/b&gt;&lt;/i&gt; &lt;a href=&quot;https://t.me/sciReviewer_bot&quot; target=&quot;_blank&quot; rel=&quot;noopener&quot; title=&quot;投稿&quot;&gt;投稿&lt;/a&gt;&lt;/div&gt;</content:encoded></item></channel></rss>