微型实验室培养的大脑为观察精神分裂症和双相情感障碍如何干扰神经活动提供了前所未有的视角。研究人员发现了独特的电发放模式，能够以极高的准确率识别这些疾病。这一发现为更精准的诊断和个性化药物测试铺平了道路。医生有朝一日或许不再需要盲目试药，而是能在治疗患者之前确定哪种药物有效。
The research was published in the journal APL Bioengineering.
" * *Draft:* 该研究发表在期刊《APL Bioengineering》上。 * *Refinement:* Keep the journal name in English or provide standard translation if exists. Usually, retain English for specific journals or use standard translation. "APL Bioengineering" is often cited as is or 《APL生物工程》. I will keep the English name or use the standard format. * *Final Polish:* 这项研究发表在《APL Bioengineering》期刊上。 * **Segment 3:** * *Source:* "Why Schizophrenia and Bipolar Disorder Are Hard to Diagnose
" * *Draft:* 为什么精神分裂症和双相情感障碍很难诊断 * *Refinement:* "Bipolar Disorder" -> 双相情感障碍 (standard medical term). * *Final Polish:*为何精神分裂症和双相情感障碍难以诊断
* **Segment 4:** * *Source:* ""Schizophrenia and bipolar disorder are very hard to diagnose because no particular part of the brain goes off. No specific enzymes are going off like in Parkinson's, another neurological disease where doctors can diagnose and treat based on dopamine levels even though it still doesn't have a proper cure," said Annie Kathuria, a Johns Hopkins University biomedical engineer who led the study. "Our hope is that in the future we can not only confirm a patient is schizophrenic or bipolar from brain organoids, but that we can also start testing drugs on the organoids to find out what drug concentrations might help them get to a healthy state."
" * *Draft:* “精神分裂症和双相情感障碍很难诊断，因为没有特定的大脑部分出问题。没有特定的酶出问题，像帕金森病那样，那是另一种神经疾病，医生可以根据多巴胺水平诊断和治疗，尽管仍然没有适当的治愈方法，”领导该研究的约翰霍普金斯大学生物医学工程师Annie Kathuria说。“我们的希望是，在未来我们不仅能从脑类器官确认病人是精神分裂症或双相情感障碍，而且我们能开始在类器官上测试药物，找出什么药物浓度可能帮助他们恢复健康状态。” * *Refinement:* "No particular part of the brain goes off" -> 没有特定的大脑区域出现异常/病变. "Goes off" here is colloquial for malfunctioning or showing distinct signs. "Enzymes are going off" -> 酶出现异常. "Proper cure" -> 彻底治愈/有效疗法. "Brain organoids" -> 脑类器官. "Drug concentrations" -> 药物浓度. * *Technical Polish:* “精神分裂症和双相情感障碍非常难以诊断，因为没有特定的大脑区域出现异常。这不像帕金森病——另一种神经疾病——会有特定的酶出现异常，医生可以基于多巴胺水平进行诊断和治疗，尽管该病目前仍无根治方法，”领导这项研究的约翰霍普金斯大学生物医学工程师安妮·卡图里亚说。“我们希望在未来，我们不仅能通过脑类器官确认患者患有精神分裂症或双相情感障碍，还能在类器官上测试药物，以找出什么样的药物浓度可能有助于他们恢复健康状态。”” * **Segment 5:** * *Source:* "How Scientists Built and Studied Brain Organoids
" * *Draft:* 科学家如何构建和研究脑类器官 * *Final Polish:*科学家如何构建和研究脑类器官
* **Segment 6:** * *Source:* "To conduct the study, Kathuria's team created brain organoids, which are simplified versions of real human organs. They started by turning blood and skin cells from patients with schizophrenia, bipolar disorder, and from healthy individuals into stem cells capable of developing into brain-like tissue.
" * *Draft:* 为了进行研究，Kathuria的团队创造了脑类器官，这是真实人类器官的简化版本。他们首先将来自精神分裂症、双相情感障碍患者和健康个体的血液和皮肤细胞转化为能够发育成类脑组织的干细胞。 * *Refinement:* "Simplified versions of real human organs" -> 真实人体器官的简化模型/版本. "Brain-like tissue" -> 类脑组织. * *Final Polish:* 为了开展这项研究，卡图里亚的团队培育了脑类器官，这是真实人体器官的简化版本。他们首先将来自精神分裂症患者、双相情感障碍患者以及健康个体的血液和皮肤细胞，转化为能够发育成类脑组织的干细胞。 * **Segment 7 (Placeholder):** * *Source:*The team then used machine learning tools to analyze the electrical activity of cells inside these mini brains. In the human brain, neurons communicate by sending brief electrical signals to one another, and the researchers focused on identifying patterns in that activity linked to healthy and unhealthy brain function.
" * *Draft:* 团队随后使用机器学习工具分析这些迷你大脑内部细胞的电活动。在人脑中，神经元通过互相发送短暂的电信号进行交流，研究人员专注于识别与健康和不健康大脑功能相关的活动模式。 * *Refinement:* "Mini brains" -> 迷你大脑 (common term for organoids in media). "Brief electrical signals" -> 短暂的电信号/电脉冲. * *Final Polish:* 随后，团队利用机器学习工具分析了这些“迷你大脑”内部细胞的电活动。在人脑中，神经元通过相互发送短暂的电信号进行通信，研究人员致力于识别与健康及不健康大脑功能相关的活动模式。 * **Segment 9:** * *Source:* "Electrical Biomarkers Identify Mental Illness
" * *Draft:* 电生物标志物识别精神疾病 * *Final Polish:*电生物标志物识别精神疾病
* **Segment 10:** * *Source:* "The scientists found that specific features of the organoids' electrical behavior acted as biomarkers for schizophrenia and bipolar disorder. Using these signals alone, they were able to correctly identify which organoids came from affected patients 83% of the time. When the tissue received gentle electrical stimulation designed to bring out more neural activity, accuracy increased to 92%.
" * *Draft:* 科学家发现，类器官电行为的特定特征充当了精神分裂症和双相情感障碍的生物标志物。仅使用这些信号，他们能够83%的时间正确识别哪些类器官来自受影响的患者。当组织接受旨在引出更多神经活动的温和电刺激时，准确率增加到92%。 * *Refinement:* "Acted as biomarkers" -> 可作为生物标志物. "83% of the time" -> 准确率达到83% / 83%的情况下. "Bring out more neural activity" -> 激发更多神经活动. * *Final Polish:* 科学家发现，类器官电行为的特定特征可作为精神分裂症和双相情感障碍的生物标志物。仅利用这些信号，他们识别受影响患者类器官的准确率达到了83%。当对组织施加旨在激发更多神经活动的温和电刺激时，准确率提升至92%。 * **Segment 11:** * *Source:* "The patterns they uncovered were complex and highly specific. Neurons from schizophrenia and bipolar disorder patients showed unusual firing spikes and timing changes across multiple electrical measurements, creating a distinct signature for each condition.
" * *Draft:* 他们发现的模式复杂且高度特异。来自精神分裂症和双相情感障碍患者的神经元显示出异常的放电尖峰和跨多个电测量的时间变化，为每种情况创造了独特的 * *Draft:* 利用微芯片绘制大脑活动图谱 / 使用微芯片映射大脑活动。 * *Refinement:* "利用微芯片绘制大脑活动图谱" sounds professional. * **Paragraph 1:** `To better understand how neurons formed networks, the researchers placed the organoids on microchips equipped with multi-electrode arrays arranged like a grid. This setup allowed them to collect data in a way similar to a tiny electroencephalogram, or EEG, the test doctors use to measure brain activity in patients.
` * *Keywords:* neurons (神经元), networks (网络), organoids (类器官), microchips (微芯片), multi-electrode arrays (多电极阵列), grid (网格), electroencephalogram (脑电图/EEG). * *Sentence 1:* "To better understand how neurons formed networks..." -> 为了更好地理解神经元如何形成网络... "...the researchers placed the organoids on microchips equipped with multi-electrode arrays arranged like a grid." -> 研究人员将类器官放置在配备了呈网格状排列的多电极阵列的微芯片上。 * *Sentence 2:* "This setup allowed them to collect data in a way similar to a tiny electroencephalogram, or EEG..." -> 这种设置使他们能够以类似于微型脑电图（EEG）的方式收集数据... "...the test doctors use to measure brain activity in patients." -> 即医生用来测量患者大脑活动的测试。 * *Polishing:* 为了更好地理解神经元如何形成网络，研究人员将类器官放置在配备了呈网格状排列的多电极阵列的微芯片上。这种设置使他们能够以类似于微型脑电图（EEG）的方式收集数据，脑电图是医生用来测量患者大脑活动的测试。 * **Paragraph 2:** `When fully developed, the organoids reached about three millimeters in diameter. They contained multiple types of neural cells normally found in the brain's prefrontal cortex, a region involved in higher-level thinking. The mini brains also produced myelin, a substance that insulates nerve cells and helps electrical signals travel more efficiently.
` * *Keywords:* fully developed (发育完全), diameter (直径), neural cells (神经细胞), prefrontal cortex (前额叶皮层), higher-level thinking (高级思维), mini brains (微型大脑/迷你大脑), myelin (髓磷脂/髓鞘), insulates (绝缘), electrical signals (电信号). * *Sentence 1:* "When fully developed, the organoids reached about three millimeters in diameter." -> 发育完全时，这些类器官直径达到约三毫米。 * *Sentence 2:* "They contained multiple types of neural cells normally found in the brain's prefrontal cortex..." -> 它们包含通常在大脑前额叶皮层中发现的多类神经细胞... "...a region involved in higher-level thinking." -> 该区域参与高级思维活动。 * *Sentence 3:* "The mini brains also produced myelin..." -> 这些微型大脑还产生了髓磷脂... "...a substance that insulates nerve cells and helps electrical signals travel more efficiently." -> 这是一种隔离神经细胞并帮助电信号更高效传递的物质。 (注明: "insulates" in biology context usually translates to "绝缘" or "包裹", here "绝缘" is technically correct for myelin function, but "包裹" describes the structure. "Insulates nerve cells" -> 对神经细胞起到绝缘作用). * *Polishing:* 发育完全时，这些类器官的直径达到约三毫米。它们包含通常发现于大脑前额叶皮层中的多种神经细胞，该区域参与高级思维活动。这些微型大脑还产生了髓磷脂，这是一种对神经细胞起绝缘作用并帮助电信号更高效传递的物质。 * **Title 2:** `Toward Personalized Psychiatric Treatments` * *Keywords:* Personalized (个性化), Psychiatric Treatments (精神科治疗/精神疾病治疗). * *Draft:* 迈向个性化精神疾病治疗。 * **Paragraph 3:** `The study included samples from just 12 patients, but Kathuria believes the results point toward meaningful clinical applications. The organoids could eventually serve as a testing platform for psychiatric medications before those drugs are prescribed to patients.
` * *Keywords:* samples (样本), clinical applications (临床应用), testing platform (测试平台), psychiatric medications (精神科药物), prescribed (开处方/处方). * *Sentence 1:* "The study included samples from just 12 patients..." -> 该研究仅包含来自12名患者的样本... "...but Kathuria believes the results point toward meaningful clinical applications." -> 但Kathuria认为结果指向了有意义的临床应用。 * *Sentence 2:* "The organoids could eventually serve as a testing platform for psychiatric medications..." -> 这些类器官最终可能作为精神科药物的测试平台... "...before those drugs are prescribed to patients." -> 在这些药物被处方给患者之前。 * *Polishing:* 尽管该研究仅包含来自12名患者的样本，但Kathuria认为这些结果指向了有意义的临床应用。这些类器官最终可能成为精神科药物的测试平台，用于在药物开给患者之前进行测试。 * **Paragraph 4:** `The team is now collaborating with neurosurgeons, psychiatrists, and neuroscientists at the John Hopkins School of Medicine. They are collecting additional blood samples from psychiatric patients to study how different drug concentrations affect organoid activity. Even with a limited number of samples, the researchers believe they may be able to suggest medication doses that help restore healthier neural patterns.
` * *Keywords:* neurosurgeons (神经外科医生), psychiatrists (精神科医生), neuroscientists (神经科学家), John Hopkins School of Medicine (约翰霍普金斯医学院), drug concentrations (药物浓度), medication doses (药物剂量), neural patterns (神经模式). * *Sentence 1:* "The team is now collaborating with neurosurgeons, psychiatrists, and neuroscientists at the John Hopkins School of Medicine." -> 该团队目前正与约翰霍普金斯医学院的神经外科医生、精神科医生和神经科学家合作。 * *Sentence 2:* "They are collecting additional blood samples from psychiatric patients..." -> 他们正在从精神疾病患者那里收集额外的血液样本... "...to study how different drug concentrations affect organoid activity." -> 以研究不同药物浓度如何影响类器官活动。 * *Sentence 3:* "Even with a limited number of samples..." -> 即使样本数量有限... "...the researchers believe they may be able to suggest medication doses that help restore healthier neural patterns." -> 研究人员相信他们可能能够建议有助于恢复更健康神经模式的药物剂量。 * *Polishing:* 该团队目前正与约翰霍普金斯医学院的神经外科医生、精神科医生和神经科学家合作。他们正在从精神疾病患者那里收集更多血液样本，以研究不同药物浓度如何影响类器官活动。尽管样本数量有限，研究人员仍相信他们可能能够提出有助于恢复更健康神经模式的药物剂量建议。 * **Paragraph 5:** `"That's how most doctors give patients these drugs, with a trial-and-error method that may take six or seven months to finds the right drug," Kathuria said. "Clozapine is the most common drug prescribed for schizophrenia, but about 40% of patients are resistant to it. With our organoids, maybe we won't have to do that trial-and-error period. Maybe we can give them the right drug sooner than that"
` * *Keywords:* trial-and-error method (试错法), Clozapine (氯氮平), schizophrenia (精神分裂症), resistant (耐药/抵抗). * *Sentence 1:* "That's how most doctors give patients these drugs, with a trial-and-error method..." -> 大多数医生就是这样给患者开这些药的，采用试错法... "...that may take six or seven months to finds the right drug," Kathuria said. -> 这可能需要六七个月才能找到合适的药物，Kathuria说道。 * *Sentence 2:* "Clozapine is the most common drug prescribed for schizophrenia..." -> 氯氮平是治疗精神分裂症最常用的处方药... "...but about 40% of patients are resistant to it." -> 但约40%的患者对其具有耐药性（或抵抗反应）。"Resistant" in medical context usually means "treatment-resistant" (耐药/难治). Let's use "耐药性" or "无效". "耐药性" is standard. * *Sentence 3:* "With our organoids, maybe we won't have to do that trial-and-error period." -> 有了我们的类器官，也许我们就不必经历那个试错阶段了。 * *Sentence 4:* "Maybe we can give them the right drug sooner than that"