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白衣服穿着穿着就黄了怎么办?教你3招搞定
Yang Shi Xin Wen· 2025-07-26 01:44
很多人喜欢穿白衣服,然而让人苦恼的是,穿一段时间后,白衣服总逃不过发黄的宿命,尤其是领口、袖口,十分影响美观。 这到底是怎么回事?怎么才能避免白衣服发黄呢?已经发黄的衣服又怎样才能白回来? The Property of the Property of Children the local of the later 白衣服为什么会变黄? 仔细观察发黄的衣服,你会发现,衣服发黄有的是局部区域,有的是整体均匀的发黄,可见发黄只是结果,导致发黄的原因其实多种多样,甚至还有点复 杂。 汗渍皮脂残留污染 人体的皮肤无时无刻不在分泌汗液,但汗液并不只有水分,还有皮脂(油脂)、皮屑(蛋白质),它们在被空气氧化后会慢慢生成黄色物质,而且越不及时 清洗这种发黄越难洗干净,因为皮脂皮屑在氧化后也会慢慢地变得疏水,甚至彼此交联结块,更加难以洗掉。 材料本身易泛黄 衣服的面料成分多种多样,其中就有些面料材料本身特别容易发黄,例如锦纶(尼龙)、氨纶、蚕丝、羊毛。这些材质都有一个共同点,那就是它们的化学 结构中含有"氨基(-NH2)",这个结构容易在空气中被氧化形成发黄的颜色。 菌渍繁殖导致 纺织品如果清洁、储存不当,上面滋生的细菌在繁 ...
AMGN Down 10% in 3 Months: How to Play the Stock as Tariff Woes Linger
ZACKS· 2025-05-21 13:50
Core Viewpoint - Amgen's stock has faced a decline of 10.4% over the past three months, largely attributed to macroeconomic uncertainties and trade tensions [1][2]. Group 1: Market Environment - The stock market has experienced volatility due to President Trump's tariffs and China's retaliatory measures, although a recent deal has eased tensions temporarily [2]. - The uncertainty surrounding tariffs continues to impact economic growth, despite pharmaceuticals being exempt from initial tariffs [3]. Group 2: Company Performance - Amgen's revenues grew by 9% year over year in Q1 2025, driven by increased patient demand for innovative medicines [4]. - The company is facing declining revenues from oncology biosimilars and established products like Enbrel, with competitive pressures affecting sales [5]. - Key revenue drivers include older medicines like Prolia and Repatha, as well as new drugs such as Tavneos and Tezspire, alongside rare disease drugs from the acquisition of Horizon Therapeutics [5]. Group 3: Drug Pipeline and Approvals - Amgen is evaluating several drugs for additional indications, which could enhance revenue growth, with Uplizna recently approved for IgG4-related disease [6][7]. - The company has invested significantly in M&A to diversify its pipeline, including the development of MariTide, a novel obesity treatment [8][10]. - Clinical studies for MariTide have shown promising results, and further studies are ongoing [9][10]. Group 4: Biosimilars and Market Strategy - Amgen launched several new biosimilars in 2025, generating substantial sales, including Wezlana and Pavblu, which contributed to a 35% year-over-year increase in biosimilar sales [13][15]. - The company is actively pursuing additional biosimilar approvals to mitigate the impact of upcoming patent expirations for key drugs [15][16]. Group 5: Financial Outlook - Amgen's stock has outperformed the industry and S&P 500, with a year-to-date increase of 7.3% [18]. - The stock is reasonably valued, trading at a price/earnings ratio of 13.12, lower than the industry average [21]. - Earnings estimates for 2025 and 2026 have seen upward revisions, indicating positive market sentiment [24][26]. Group 6: Long-term Growth Potential - The company is expected to maintain long-term revenue growth driven by strong performance from key drugs and innovative medicines [27]. - Despite initial data from MariTide studies being below expectations, it holds potential as a significant product for Amgen [27].
AMGN's Key Drugs Repatha, Evenity & Blincyto Drive Q1 Sales Growth
ZACKS· 2025-05-05 13:05
Core Viewpoint - Amgen (AMGN) reported strong first-quarter earnings and sales for 2025, with total revenues increasing by 9% year over year and product revenues rising by 11% to $7.87 billion, driven by volume growth despite price declines [1][2][3] Revenue Performance - Total revenues rose 9% year over year, with product revenues increasing 11% to $7.87 billion, reflecting strong volume growth across all areas [1][2] - Sales of key products such as Prolia, Xgeva, Repatha, Blincyto, and Evenity exceeded estimates, with 14 products achieving double-digit volume growth [3][4] Key Drug Performance - Repatha generated $656 million in sales, up 27% year over year, with volume growth of 41% offset by a 9% price decline [4] - Evenity recorded sales of $442 million, a 29% increase year over year, driven by strong demand [5] - Prolia revenues reached $1.1 billion, up 10% from the previous year, as higher volumes mitigated lower pricing impacts [5] Rare Disease Drug Sales - Sales of rare disease drugs rose 3% year over year to $1 billion, with Tepezza and Krystexxa impacted by U.S. wholesaler inventory changes [8][9] - Tepezza sales declined 10% to $381 million, while Krystexxa remained flat at $236 million; Uplizna grew 14% to $91 million, and Tavneos saw a 76% increase to $90 million [9] Oncology Portfolio - Amgen's oncology portfolio grew 10% year over year, generating over $2 billion in sales, with Blincyto as a key driver at $370 million, up 52% [10][11] - Xgeva delivered revenues of $566 million, while Kyprolis saw a 14% decline to $324 million due to competitive pressures [11] Biosimilars Contribution - Biosimilar portfolio sales increased by 35% year over year to $735 million, with new products like Wezlana contributing significantly [12][13] - Wezlana generated $150 million in sales, while Pavblu brought in $99 million [13] Inflammation Drugs - Otezla sales were $437 million, up 11%, while Enbrel revenues declined 10% to $510 million, with both products beating estimates [15] Overall Conclusion - Amgen's key medicines, including Evenity, Repatha, and Blincyto, drove sales growth, offsetting declines from oncology biosimilars and established products like Enbrel [16] - Increased pricing pressures and competition are expected to impact sales of several products, with potential revenue headwinds from brands like Otezla and Lumakras [17]
Amgen(AMGN) - 2025 Q1 - Earnings Call Presentation
2025-05-01 20:23
Q1 '25 Earnings Call May 1, 2025 Safe Harbor Statement This presentation contains forward-looking statements that are based on the current expectations and beliefs of Amgen. All statements, other than statements of historical fact, are statements that could be deemed forward-looking statements, including any statements on the outcome, benefits and synergies of collaborations, or potential collaborations, with any other company (including BeiGene, Ltd. or Kyowa Kirin Co., Ltd.), the performance of Otezla® (a ...
Can Amgen Keep the Beat Streak Alive This Earnings Season?
ZACKS· 2025-04-29 11:45
Core Viewpoint - Amgen is set to report its first-quarter 2025 results on May 1, with expectations of strong sales driven by volume growth in key products, although pricing pressures may impact overall revenue [1][4]. Sales Estimates - The Zacks Consensus Estimate for first-quarter sales is $7.96 billion, with earnings expected at $4.16 per share [1]. - Specific sales estimates for key products include Evenity at $406 million, Repatha at $616 million, Kyprolis at $381 million, and Blincyto at $333 million [2]. Patent Expiration Impact - Patents for Prolia and Xgeva expired in February 2025 in the U.S., leading to anticipated significant sales erosion due to biosimilar competition, with estimates of $990 million for Prolia and $542 million for Xgeva [3]. New Product Contributions - Newer drugs like Tezspire and Tavneos are expected to contribute positively to top-line growth, alongside the successful launch of Imdelltra for advanced small cell lung cancer [4]. Declining Sales of Established Products - Sales of Enbrel and Otezla are projected to decline due to price reductions and historical trends related to benefit plan changes and increased co-pay expenses [5][6]. Biosimilars Performance - Increased competition is expected to negatively impact revenues from oncology biosimilars, while sales of Amjevita/Amgevita are likely to have increased [7]. - Amgen launched biosimilars Wezlana and Pavblu, with investors keenly observing their sales performance [8]. Operating Margin Expectations - Amgen anticipates the lowest operating margin of the year at around 42% for the first quarter, with R&D costs expected to rise while SG&A costs as a percentage of sales are projected to decline [9]. Earnings Surprise History - Amgen has a strong earnings surprise history, beating estimates in the last four quarters with an average surprise of 5.23% [10]. Earnings Prediction Model - The current model does not predict a definitive earnings beat for Amgen, with an Earnings ESP of -0.05% and a Zacks Rank of 3 [12].