Core Viewpoint - The research conducted by teams from Shanghai Jiao Tong University and Naval Medical University focuses on developing an engineered epoxidase that significantly simplifies the synthesis of meroterpenoids by enhancing the asymmetric epoxidation of farnesol [3][4]. Group 1: Research Development - The study published in the journal Science introduces a novel strategy that integrates enzyme catalysis with classical synthetic chemistry to construct meroterpenoids [3]. - The research team utilized directed evolution technology to engineer an epoxidase that exhibits unique selectivity for the internal olefin sites of farnesol [4]. Group 2: Synthesis Efficiency - The engineered epoxidase catalyzes the epoxidation reaction with high regioselectivity and enantioselectivity, leading to the production of epoxide intermediates [4]. - This method has successfully simplified the synthetic pathways for various meroterpenoids, reducing the total synthesis steps by more than 50% in most cases [4].

Core Viewpoint - The research introduces the first n-type thermoelectric elastomers (TEE), which combine elasticity, stretchability, and thermoelectric conversion capabilities, potentially enhancing the performance of wearable devices' thermoelectric generators (TEG) in terms of skin conformity and energy conversion efficiency [3][5][7]. Group 1: Research Development - The study integrates uniform bulk-phase nanophase separation, thermally activated crosslinking, and targeted doping techniques into a single material system to create n-type thermoelectric elastomers [5]. - The developed TEE exhibits excellent rubber-like resilience under 150% strain, with a thermoelectric figure of merit (ZT value) comparable to flexible inorganic materials even under mechanical deformation [5][7]. Group 2: Application Potential - The research team successfully manufactured the first elastic thermoelectric generator (TEG) and demonstrated its application in harvesting human body heat, showcasing its potential to power wearable electronic devices and biosensors [5][7]. Group 3: Performance Optimization - Contrary to traditional views that insulating polymers dilute the active components in organic thermoelectric materials, the study found that carefully selecting elastic matrices and dopants can create a uniformly distributed, elastic encapsulated structure with highly n-type doped semiconductor polymer nanofiber networks, leading to synergistic optimization of electrical conductivity and thermal conductivity [7].

Group 1 - The article highlights 11 research papers published in the prestigious journal Cell, with 6 authored by Chinese scholars, covering topics such as abscisic acid receptors, three-dimensional imaging, intelligent breeding robots, mitochondrial protein import, aging, and hair growth mechanisms [3][4][5][8][9][10][13][14][18][20][25][28][29][30][33]. Group 2 - A study from South China Agricultural University identifies the nitrate receptor NRT1.1B as a receptor for abscisic acid, revealing its role in integrating nitrogen nutrition and stress signals in plants [5][8]. - Tsinghua University's research introduces a novel method called VIVIT for achieving high-fidelity three-dimensional imaging of biological tissues, overcoming significant technical challenges in tissue transparency [10][13]. - The first intelligent breeding robot capable of automatic cross-pollination has been developed, integrating biotechnology and AI to enhance breeding efficiency and reduce costs [14][18][19]. - Research from Caltech elucidates the co-translational import of mitochondrial proteins, providing direct evidence of the timing and specificity of this process [21][24]. - A study from Altos Labs discusses "mesenchymal drift" in aging and disease, proposing partial reprogramming as a method to reverse this phenomenon [25][28]. - Research from Beijing Life Sciences Institute reveals that the membrane potential of fibroblasts is a key regulator of hair regeneration, with implications for treating hair loss [30][33].

Core Viewpoint - The research by Altos Labs reveals that "mesenchymal drift" is a common mechanism underlying aging and various diseases, and that partial reprogramming can reverse this process, offering a potential strategy for combating aging and age-related diseases [3][19][21]. Group 1: Mechanism of Aging and Disease - Aging and disease lead to a loss of cellular identity, termed "mesenchymal drift," where cells lose their specialized functions and may even become destructive [3][8]. - The study identifies a set of genes associated with the "mesenchymal state" that are upregulated as age increases or diseases develop, indicating a shift in cellular identity [8][10]. - The phenomenon of "mesenchymal drift" is linked to disease progression, reduced patient survival rates, and increased mortality risk [10][12]. Group 2: Partial Reprogramming - The research highlights the potential of partial reprogramming using Yamanaka factors (OCT4, SOX2, KLF4, MYC) to reverse aging-related cellular changes without the risks associated with full reprogramming [14][15]. - Partial reprogramming effectively suppresses key genes driving "mesenchymal drift" and promotes a younger cellular state, suggesting a unique corrective effect on aging cells [15][19]. - The study demonstrates that partial reprogramming can improve organ function and reduce fibrosis in animal models, indicating its potential for therapeutic applications [16][18]. Group 3: Implications for Future Research - The findings provide a unified mechanism for understanding aging and age-related diseases, positioning "mesenchymal drift" as a promising target for intervention [19][21]. - The research opens avenues for developing drugs or therapies that mimic the effects of partial reprogramming to specifically target "mesenchymal drift" [21]. - Altos Labs aims to leverage these insights to create new medical approaches for reversing aging and extending human lifespan, supported by significant funding and a strong scientific team [24].

Core Viewpoint - The research conducted by Chen Ting's team reveals that the bioelectric signaling of fibroblasts plays a crucial role in hair regeneration, with hyperpolarization promoting hair growth and depolarization inhibiting it [3][4][5][7]. Group 1: Research Findings - The study identifies that chromatin changes link the KCNJ2 gene in patients with congenital generalized hypertrichosis to distal enhancers [5]. - Upregulation of KCNJ2 in fibroblasts, rather than other cell types, drives sustained hair growth [5]. - Hyperpolarization of fibroblast membranes promotes hair growth, while depolarization halts it [5]. - KCNJ2-mediated hyperpolarization can reverse hair loss associated with aging and androgenetic alopecia [5]. Group 2: Mechanism Insights - The research indicates that the membrane potential oscillation of fibroblasts is particularly associated with the anagen phase of the hair cycle, where hyperpolarization is crucial [4]. - Inducing depolarization in fibroblasts can delay the anagen phase, while hyperpolarization can rescue hair loss in aging and androgenetic alopecia models [4][5]. Group 3: Clinical Implications - The findings suggest a novel therapeutic approach for hair loss treatment by targeting the bioelectric properties of fibroblasts [7].

Core Insights - The research published in Science reveals that maize can enhance its defense mechanisms under high-density planting conditions through a plant-soil feedback mechanism triggered by the volatile compound linalool [2][8]. Group 1: Research Findings - High-density planting increases crop yield but also raises the risk of pest and disease outbreaks, highlighting the need for understanding plant immune responses in crowded environments [5]. - Linalool, a volatile compound released by maize, activates the jasmonic acid signaling pathway in neighboring plants, preparing them for potential biotic stress [6][8]. - The study found that maize plants in densely planted areas showed less damage from herbivores but exhibited slower growth compared to those at the edges [7]. Group 2: Mechanism of Action - The feedback mechanism involves linalool promoting the secretion of specific metabolites, particularly HDMBOA-Glc, which reshapes the root microbiome and enhances resistance to pests and pathogens [7][8]. - The research indicates that the jasmonic acid signaling pathway plays a crucial role in regulating defense responses, with salicylic acid signaling being essential for the observed growth-defense trade-offs [7][8]. Group 3: Implications for Agriculture - Understanding this chemical signaling network is vital for developing sustainable agricultural strategies that balance plant growth and defense, especially in the context of increasing global food demand [3][5]. - The findings suggest potential applications in breeding, microbial inoculation, or synthetic biology to cultivate crops with enhanced resilience and reduced chemical input requirements [8].

Core Viewpoint - The article highlights the appointment of Professor Ji Xunming as the new president of the Chinese Academy of Medical Sciences and Peking Union Medical College, emphasizing his significant contributions to stroke prevention and translational medicine research [2][7]. Group 1: Appointment Details - Professor Ji Xunming has recently taken over as the president of the Chinese Academy of Medical Sciences and Peking Union Medical College, effective from August 15, 2025 [2][7]. - He previously served as the president of Capital Medical University starting in March 2023, following Professor Rao Yi [4][7]. Group 2: Professional Background - Ji Xunming, born in 1970, was elected as an academician of the Chinese Academy of Engineering in 2023 and is currently the director of the Beijing Institute of Major Brain Diseases [7]. - His research focuses on the mechanisms of arterial and venous stroke, brain blood flow reconstruction, and neuroprotection, with significant publications in high-impact journals such as NEJM, Lancet Neurology, and Nature [7]. Group 3: Institutional Overview - The Chinese Academy of Medical Sciences was established in 1956, and Peking Union Medical College was founded in 1917, operating under a unified management system since 1957 [8]. - The institution comprises 21 research institutes, 6 affiliated hospitals, 10 colleges, and 105 external research and development organizations, making it a comprehensive national medical research and education entity [8].

Core Viewpoint - The recent study from Sun Yat-sen University highlights the significant role of greenspace in mitigating the global disease and economic burdens associated with non-communicable diseases (NCDs) [4][6]. Summary by Sections Non-Communicable Diseases (NCDs) - NCDs are the primary threat to global public health, causing 42 million deaths in 2021, which accounts for 75% of total global deaths [6]. - It is projected that from 2011 to 2030, NCDs will result in over $30 trillion in economic losses globally, imposing heavy burdens on families, healthcare systems, and society [6]. Importance of Greenspace - Greenspace, including forests, parks, and gardens, plays a crucial role in human health and disease prevention [6]. - Increased exposure to greenspace is associated with a reduced risk of various NCDs, such as cardiovascular diseases, diabetes, cancer, and mental health issues [6]. - The benefits of greenspace may stem from ecological, biological, psychological, and social pathways, including reduced air pollution and enhanced social cohesion [6]. Research Limitations and Gaps - Previous studies on the relationship between greenspace and NCDs have been limited to specific geographic areas, restricting the applicability of findings to broader populations [7]. - There is a lack of comprehensive research quantifying the potential health and economic benefits of increasing greenspace on a global scale [7][8]. Key Findings of the Study - The study analyzed data from 204 countries/regions between 2000 and 2021, using mixed-effects regression models to assess the association between greenspace and NCD-related mortality and disability-adjusted life years (DALYs) [8]. - Results indicate that larger greenspace areas correlate with lower burdens of NCDs [8]. - If greenspace had been maintained at optimal levels over the past two decades, it could have potentially prevented 1.66 million NCD-related deaths and 37.68 million DALYs, saving nearly $10 billion [8]. Implications for Policy - The findings provide invaluable information for policymakers and practitioners, suggesting that greenspace initiatives should be integrated into national policy-making and resource allocation to alleviate the disease and economic burdens of NCDs globally [10].

Core Viewpoint - The study published in Nature reveals that estrogen can inhibit ferroptosis and acute kidney injury (AKI), providing insights into the gender differences observed in AKI susceptibility, with men and postmenopausal women being more prone to this condition compared to premenopausal women [2][4][6]. Summary by Sections Gender Differences in AKI - Research indicates that men have a higher incidence and mortality rate from AKI compared to women, particularly when comparing to premenopausal women [4]. - The study suggests that this gender difference may be linked to the sensitivity of acute tubular necrosis (ATN) to ferroptosis, a major type of cell death in AKI [4]. Role of Estrogen - The research focuses on the protective role of estrogen against ferroptosis, demonstrating that estrogen can significantly inhibit cell death mediated by ferroptosis in female renal tubules [4][6]. - Estrogen, specifically 17β-estradiol, establishes an anti-ferroptotic state through both genomic and non-genomic mechanisms, including: - Direct inhibition of ferroptosis by hydroxylated estrogen derivatives, which act as free radical scavengers [4]. - The FSP1-mediated regeneration of oxidized hydroxylated estrogen, indicating a complex interplay in the protective mechanisms [4]. - Regulation by estrogen receptor ESR1, which enhances the anti-ferroptotic capacity of renal tubules [4][6]. Implications for Kidney Protection - The findings elucidate the mechanisms by which female renal tubules resist ferroptosis, explaining the increased susceptibility to AKI in men and postmenopausal women due to decreased estrogen levels [6]. - This research suggests potential therapeutic approaches for kidney protection in males and postmenopausal females, such as the use of estrogen metabolites or ferroptosis inhibitors [6]. - The study emphasizes the importance of gender as a biological variable in the regulation of ferroptosis, with broader implications beyond kidney diseases, potentially affecting conditions like heart disease and stroke [6].

Core Viewpoint - The study highlights the role of DNASE1L3-expressing dendritic cells in enhancing CD8+ T cell function and improving the efficacy of anti-PD-1/PD-L1 therapies by degrading neutrophil extracellular traps (NETs) [2][3][5]. Group 1: Research Findings - The expression of DNASE1L3 in tumor-infiltrating dendritic cells is positively correlated with better prognosis in cancer patients undergoing anti-PD-1/PD-L1 therapy [5]. - Conditional knockout of DNASE1L3 in dendritic cells leads to accelerated tumor growth and reduced efficacy of anti-PD-L1 therapy due to impaired CD8+ T cell infiltration and function [5]. - Exogenous supplementation of DNASE1L3 enhances CD8+ T cell infiltration into the tumor microenvironment, reduces T cell exhaustion, significantly inhibits tumor growth, and improves responses to anti-PD-L1 therapy [5]. Group 2: Mechanistic Insights - DNASE1L3+ dendritic cells maintain a cytotoxic CD8+ T cell hub by degrading NETs, which inhibit the spatial distribution of CD8+ T cells within tumors [5][8]. - The absence of DNASE1L3 in dendritic cells promotes tumor growth through CD8+ T cell dysfunction [5][8]. Group 3: Implications for Therapy - DNASE1L3 is identified as a promising new target for improving the effectiveness of anti-PD-1/PD-L1 therapies [8].