阿司匹林

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四川大学发表最新Nature论文
生物世界· 2025-07-26 23:29
撰文丨王聪 编辑丨王多鱼 排版丨水成文 阿司匹林 是世界上最常用的止痛药和消炎药之一,它由 水杨酸 ( Salicylic acid, SA) 制成,而水杨酸最初是在柳树的树皮中被发现的。 1828 年,德国科学 家 Johann Buchner 从柳树中提取出一种名为水杨苷 ( Salicin ) 的化合物,这是一种水杨酸衍生物,也是一种具有治疗作用的活性物质。 水杨酸的作用远不止是合成阿司匹林所需的一种分子,它在植物生物学中发挥着关键作用,是一种重要的防御激素。然而,科学家们对于水杨酸生成所涉及的途 径一直了解不全面。 2025 年 7 月 23 日,四川大学生命科学学院 张跃林 团队 ( 刘亚楠 、 徐璐 为共同第一作者) 在国际顶尖学术期刊 Nature 上发表了题为: Three-step biosynthesis of salicylic acid from benzoyl-CoA in plants 的研究论文。 该研究解开了植物关键防御激素 水杨酸 生物合成途径中的长期谜团,解析了植物中从 苯甲酰辅酶 A 到 水杨酸 的三步生物合成途径 ,并发 现该合成途径在种子 植物中高度保守。 这一发现为 ...
浙江大学发表最新Nature论文
生物世界· 2025-07-24 22:29
撰文丨王聪 编辑丨王多鱼 排版丨水成文 早在 4000 多年前,人们就在草药中利用了 水杨酸 ( Salicylic acid,sa ) 的生物学效应,用来消炎、镇 痛。到了 18 世纪,人们首次从柳树皮中分离出了水杨酸,基于水杨酸的 阿司匹林 (乙酰水杨酸) ,是人 类历史上使用最广泛的药物。 水杨酸作为一种植物激素,在植物中发挥着重要的免疫防御作用。 植物进化出了两条合成水杨酸的途径 —— 异分支酸合成酶 (Isochorismate Synthase,ICS) 途径、 苯丙氨酸解氨酶 (Phenylalanine Ammonia Lyase,PAL) 途径。其中, ICS 途径已在多种植物物种中得到研究,并在双子叶模式植物拟南 芥中得到了全面解析。然而,我们对 PAL 途径的理解仍不完整。 2025 年 7 月 23 日,浙江大学 潘荣辉 团队、 范鹏祥 团队 ( 王玉康 、 宋书言 、 张文轩 为共同第一作 者 ) 在 Nature 期刊发表了题为: Deciphering phenylalanine-derived salicylic acid biosynthesis in plants 研究论文 ...
背靠背三篇Nature论文:四川大学、浙江大学、浙江师范大学各自破解水杨酸生物合成百年谜题
生物世界· 2025-07-24 03:07
该研究揭示了 水杨酸 的 PAL 合成途径 ,并发 现该合成途径在种子植物中高度保守。这一发现为解析不同植物类群 (特别是主要粮食作物) 的抗病机制差异提 供了分子基础,为培育抗病性增强的作物品种提供了新方向和新靶点。 在这项最新研究中,研究团队报道种子植物水杨酸生物合成保守途径的鉴定。 以本氏烟草 ( Nicotiana benthamiana ) 为模式植物,研究团队确定了水杨酸生物合成的三个关键步骤: 1)苯甲酰辅酶 A ( benzoyl-CoA ) 和苯甲醇 ( benzyl alcohol ) 通过 苯甲酰辅酶 A: 苯甲醇苯甲酰转移酶 (BEBT) 连接生成 苯甲酸苄酯 ( benzyl benzoate ) ; 撰文丨王聪 编辑丨王多鱼 排版丨水成文 几个世纪以来,最初从柳树皮中发现的活性成分 水杨酸 ( Salicylic acid, SA) 一直被用于抗炎和止痛。其衍生物 阿司匹林 (乙酰水杨酸) 已有超过 200 年 的使用历史,是人类历史上使用最广泛的药物。此外,水杨酸还是关键的植物防御激素。 植物进化出了两条合成水杨酸的途径—— 异分支酸合成酶 (Isochorismate Synt ...
2025年中国糖足治疗行发展历程、产业链图谱、市场规模、竞争格局及发展趋势研判:糖足患者人数持续增加,市场需求持续增长[图]
Chan Ye Xin Xi Wang· 2025-07-24 01:40
内容概要:庞大的糖足患者群体带动我国糖足治疗行业市场规模持续扩容,据统计,2024年我国糖足治 疗行业市场规模达2141.4亿元,同比增长3.67%,其中,医疗服务占82.4%,糖足药物占17.6%,在糖足 药物市场中,化学药物占比最大,达9.0%,其次为创面敷料和生物制品,分别占5.6%和2.1%,未来, 随着健康知识的普及,人们对糖尿病足的认知水平不断提高,更加重视早期预防和规范治疗,促使更多 患者及时就医,糖足治市场需求将进一步扩大,此外,随着人口老龄化加剧,老年人作为糖尿病及糖足 的高发人群,其数量的增加也将推动了糖足治疗行业的发展。 上市企业:信达生物(01801.HK)、亿胜生物科技(01061.HK)、华东医药(000963)、盟科药业 (688373)、恒瑞医药(600276)、华润双鹤(600062)、万邦医药(301520) 相关企业:拜耳(中国)有限公司、默克投资(中国)有限公司、诺和诺德(中国)制药有限公司、礼 来苏州制药有限公司、赛诺菲(中国)投资有限公司、常州制药厂有限公司、青岛诺安百特生物技术有 限公司、朗肽生物制药股份有限公司、上海海和药物研究开发股份有限公司、四川浦华中药科技 ...
浙江师范大学发表最新Nature论文
生物世界· 2025-07-23 23:49
撰文丨王聪 编辑丨王多鱼 排版丨水成文 水杨酸 ( Salicylic acid, SA) 是一种天然酚类物质,其衍生物 阿斯匹林 (乙酰水杨酸) 是 人类历史上使用最广泛的药物,已有超过 200 年的应用。此外, 水杨酸还是植物应对生物和非生物胁迫的关键植物激素。 植物进化出了两条合成水杨酸的途径—— 异分支酸合成酶 (Isochorismate Synthase,ICS) 途径、 苯丙氨酸解氨酶 (Phenylalanine Ammonia Lyase, PAL) 途径。其中, ICS 途径已在多种植物物种中得到研究,并在双子叶模式植物拟南芥中得到了全面解析。然而,我们对 PAL 途径的理解仍不完整。 2025 年 7 月 23 日,浙江师范大学 张可伟 团队 、 布鲁克海文国家实验室 刘长军 团队 在 Nature 期刊发表了题为: Complete biosynthesis of salicylic acid from phenylalanine in plants 的研究论文。 该研究完整解析了水稻从 苯甲酰辅酶 A到水杨酸的 PAL 生物合成途径,并进一步证明了其在大多数种子植物中是保守的。该研究 ...
10亿元止血药红海再掀波澜:新华制药左手新药入场券,右手净利润下滑,“增收不增利”困局何解?
Hua Xia Shi Bao· 2025-07-22 14:37
在已有十八路药企鏖战的红海中,新药能否成为新华制药逆航的罗盘? 近日,新华制药发布《药品补充申请批准通知书》公告,宣布马来酸阿伐曲泊帕片上市许可持有人由上海迪赛诺 医药变更为自身,正式抢滩这一规模约10.5亿元的止血药市场。 然而,新华制药当前正面临业绩与研发的双重压力。2024年公司营业收入达84.66亿元,同比增长4.51%,创历史 新高,但归母净利润同比下降5.33%至4.7亿元,出现"增收不增利"现象,系2013年以来首次净利润下滑;2025年 一季度业绩依旧疲软,营收、净利润均同比下滑。同时,2024年研发总投入同比减少2.23%,为3.97亿元,创新动 能承压。 更具挑战的是,马来酸阿伐曲泊帕片市场竞争已趋白热化。目前该领域不仅有复星医药原研药苏可欣®凭借先发 优势占据市场,还聚集了正大天晴、山东凤凰制药等17家通过一致性评价的仿制药企业,通过价格战、渠道拓展 争夺份额。 相比新华制药能否凭借该新品扭转颓势而言,其产品结构优化与研发能力提升更显迫切。 杀入潜力赛道 2018年,复星医药产业率先获美国AkaRx关于马来酸阿伐曲泊帕片在中国大陆及香港特别行政区的独家销售代理 权许可,彼时,该药品市场尚 ...
男子背痛硬扛3天,心肌大面积坏死!这7种疼痛是心脏在求救
Yang Shi Xin Wen· 2025-07-18 05:56
Core Points - The article highlights the importance of recognizing atypical pain signals as potential warnings for heart attacks, emphasizing that many patients misinterpret these symptoms and delay seeking medical help [1][2] Group 1: Case Study - A man named Mr. Fan experienced severe shoulder and back pain for three days, mistaking it for shoulder inflammation, which led to a significant heart muscle damage by the time he sought medical attention [1] - Upon diagnosis, he was found to have an acute anterior myocardial infarction with heart failure and shock, having missed the critical 12-hour window for effective treatment [1] - The medical team indicated that timely intervention within two hours could have significantly improved his prognosis [1] Group 2: Warning Signs - The article lists seven types of pain that may indicate a heart attack, including chest pain, prolonged nausea, throat tightness, pain in the left shoulder and arm, persistent back pain, upper abdominal pain, and jaw pain [2][3][5][6][7][8][9][10] Group 3: Prevention Tips - Recommendations for preventing heart attacks include avoiding late nights, unhealthy diets, prolonged sitting, poor emotional management, smoking, and excessive alcohol consumption [13][14][16][17][19][20] Group 4: Emergency Response - In the event of a heart attack, immediate actions include stopping all activities, calling emergency services, and potentially using emergency medications if available [22] - The article stresses the importance of timely medical intervention, as the effectiveness of treatment is closely linked to the speed of receiving care [22]
美企对我国稀土宣战,一年逆袭?中哈连签10份协议,拿下关键订单
Sou Hu Cai Jing· 2025-06-19 14:51
Group 1 - The core argument highlights the strategic anxiety of the U.S. in resource competition, as China restructures global supply chains through nuclear energy orders while U.S. politicians debate the effectiveness of tariffs [1] - The U.S. declaration to "break China's rare earth monopoly within a year" is seen as an emotional response to setbacks in the tariff war, with China controlling 70% of global rare earth reserves and 85% of refining capacity, making it difficult for the U.S. to compete [3] - The technological gap in rare earth extraction is significant, with Chinese companies having a 40% lower cost and 25% higher yield in producing high-purity praseodymium and neodymium compared to U.S. labs [3] Group 2 - China has strategically positioned itself in the pharmaceutical supply chain, controlling 60% of finished drug raw materials and 80% of antibiotic intermediates, which poses a greater risk to the U.S. than the rare earth situation [5] - The dominance of Chinese companies in the pharmaceutical sector is illustrated by Shandong Xinhua Pharmaceutical's 85% market share in aspirin raw materials and Zhejiang Medicine's control over the vitamin E supply chain [5] - If the U.S. strictly enforces manufacturing repatriation, it could face a shortage of penicillin raw materials within three years and basic antibiotics within seven years [5] Group 3 - The significance of China's nuclear energy orders is underscored by the reception of a Chinese delegation in Kazakhstan, where a $10 billion nuclear power deal was secured, reflecting China's strategic advantage in the energy sector [7] - China’s comprehensive approach includes low-interest loans and long-term uranium supply agreements, creating a competitive edge that is difficult for others to replicate [7] - The collaboration between China and Kazakhstan in nuclear energy illustrates a shift in resource control and rule-making in the global energy landscape [7] Group 4 - China's strategic initiatives extend beyond rare earths, as it establishes nuclear energy footholds in Kazakhstan, controls rubber pricing in Southeast Asia, and builds alliances for cobalt and lithium resources in Africa [9] - The integration of industry, finance, and technology in China's strategy is more impactful than the U.S. tariff battles, as China leverages its resource advantages to influence international rules [9] - The commitment from Kazakhstan's president regarding uranium supply security signals the beginning of a broader strategic influence that could surpass the current rare earth dynamics [9]
2025年易凯资本中国健康产业白皮书-医疗与健康服务篇-易凯资本
Sou Hu Cai Jing· 2025-06-06 10:44
Core Insights - The report indicates that the Chinese healthcare service market is expected to exceed 10 trillion RMB in 2024, driven by an aging population and increasing demand for chronic disease management and rehabilitation care [1][5][7] - The integration of technology and healthcare is transforming the industry, with AI models and robotic technologies enhancing diagnostic and treatment efficiency [1][19] Market Overview - The Chinese healthcare service market has grown from approximately 4 trillion RMB in 2015 to about 9 trillion RMB in 2023, with a projected compound annual growth rate (CAGR) of 10-12% [7][8] - By the end of 2024, the total number of healthcare institutions in China is expected to reach 1.092 million, with a notable increase in grassroots medical institutions [9][10] Demographic Changes - The aging population is a significant driver of healthcare demand, with 60 years and older population reaching 310 million (22% of the total population) by 2024 [10][11] - The low birth rate is impacting obstetrics and pediatrics, leading to a decline in resources in these areas, while assisted reproductive technology is gaining traction due to policy support [11][15] Policy and Regulatory Environment - The healthcare reform in 2024 is characterized by stringent drug price controls and anti-corruption measures, which are reshaping the industry towards quality over quantity [16][20] - The implementation of DRG (Diagnosis-Related Group) payment systems and the promotion of the Sanming healthcare reform model are driving hospitals to optimize service structures [22][23] Investment Trends - The A-share healthcare service sector experienced volatility in 2024, with a total of 29 merger and acquisition transactions valued at 6.3 billion RMB, focusing on consumer and serious medical fields [2][24] - The Hong Kong market has become a key exit for domestic healthcare companies, with several firms successfully listing and attracting significant investment [41][42] Technological Integration - The integration of AI and other advanced technologies is revolutionizing healthcare delivery, with AI models achieving high accuracy in clinical applications [19][20] - The development of smart healthcare systems is essential for improving service delivery and efficiency in the face of increasing demand [23][24] Market Challenges and Opportunities - The healthcare service sector is facing challenges from regulatory pressures and market fluctuations, but opportunities exist in specialized medical fields and technological advancements [24][29] - The shift towards value-based care and the emphasis on high-quality services are expected to create new growth avenues for healthcare providers [22][23]
港股收盘(05.16) | 恒指收跌0.46% 阿里巴巴-W(09988)绩后承压 网易-S(09999)劲升13%领跑蓝筹
智通财经网· 2025-05-16 08:58
盘面上,大型科技股涨跌不一,网易绩后劲升13%,阿里巴巴则挫逾4%。药品股今日受捧,三生制药 涨超11%;隔夜国际金价显著反弹,黄金股普遍回暖;马斯克预测人形机器人数量最终将达到数百亿机 器人概念股多数上涨;汽车股多数向好,比亚迪涨超3%再创历史新高;航空股、军工股飘红。另一 边,餐饮、建材水泥、内房股等走势疲软。 1. 药品股走势强劲。截至收盘,三生制药(01530)涨11.36%,报12.74港元;山东新华制药(00719)涨 8.95%,报6.21港元;金嗓子(06896)涨6.26%,报5.43港元;先声药业(02096)涨3.81%,报8.72港元。 中信建投指出,在全球化格局重塑背景下,中国医药行业需"立足于内,开拓于外",推动技术自主可 控、加速国际化布局,应对关税政策与地缘政治挑战,捕捉全球医药产业链变革机遇。本次美国对中国 加征关税中,药品阶段性豁免,创新药BD出海主要是IP转让,影响同样有限。展望行业未来投资机 遇,该行看好医药企业对内稳住国内根基,积极参与行业整合,对外把握节奏与路径,积极开拓海外市 场。值得一提的是,中国医药行业标杆企业恒瑞医药即将登陆港交所主板。 智通财经APP获悉, ...