Biotechnology Reports最新文献_第4页

Sargassum incisifolium and Ulva spp metabolites activity and their molecular dynamics simulation against Fusarium oxysporum 14-alpha-demethylase 切尾马尾草和Ulva spp代谢物对尖孢镰刀菌14- α -去甲基酶的活性及其分子动力学模拟

Q1 Immunology and Microbiology

Biotechnology Reports

Pub Date : 2025-08-20 DOI: 10.1016/j.btre.2025.e00919

Omolola Aina , Adewale O. Fadaka , Daniel Watson , Cecilia Y. Ojemaye , Denzil R. Beukes , Kudakwashe Nyambo , Kudzanai Tapfuma , Vuyo Mavumengwana , Nicole R. S Sibuyi , Marshall Keyster , Ashwil Klein

Fusarium oxysporum, a major agricultural pathogen, poses severe risks to crops worldwide. With increasing resistance to conventional antifungal agents, there is an urgent need for alternative treatments. Seaweeds such as Ulva spp. and Sargassum incisifolium are promising sources of bioactive compounds that may offer novel antifungal properties. This study investigates the antifungal activity of acetone extracts from Ulva spp. and Sargassum incisifolium against F. oxysporum, with the goal of identifying specific bioactive compounds responsible for this activity and evaluating their effectiveness quantitatively. We prepared acetone extracts from both seaweed species and assessed their antifungal activity using a series of in vitro assays. The total phenolic content (TPC) and antioxidant capacity were determined for each extract. LC-qTOF-MS/MS was employed for phytochemical profiling, while molecular docking and molecular dynamics simulations were used to predict interactions between identified compounds and the 14-alpha-demethylase enzyme of F. oxysporum. The TPC was 2.72±0.009 and 2.23±0.009 GAE/mg dry weight for Ulva spp and S. incisifolium. Additionally, significant antioxidant activity was observed, with IC50 values of 8.38±0.06 µg/mL for Ulva spp and 8.01±0.07 µg/mL for S. incisifolium, which are comparable to ascorbic acid (5.23±0.04 µg/mL). Phytochemical analysis revealed high levels of terpenoids, phenolics, and fatty acids. In molecular docking, compounds such as medicocarpin, corynanthine, and merulinic acid demonstrated strong binding affinities (binding energies ≤ -7.5 kcal/mol). Molecular dynamics simulations confirmed stable interactions over 100 ns, with medicocarpin exhibiting the most stable binding profile. The study demonstrates that acetone extracts of Ulva spp. and S. incisifolium possess significant antifungal activity against F. oxysporum. Medicocarpin, in particular, emerged as a promising candidate for further development as an antifungal agent. These findings underscore the potential of seaweed-derived compounds as antifungal agents against fungal pathogens and highlight the need for further investigation into their practical applications in plant disease management. Specifically, Medicocarpin emerged as a promising in silico candidate, warranting further experimental validation.

尖孢镰刀菌（Fusarium oxysporum）是一种重要的农业病原菌，对全球农作物造成严重威胁。随着对常规抗真菌药物的耐药性增加，迫切需要替代治疗。海藻如Ulva spp.和马尾藻（Sargassum incisifolium）是有希望的生物活性化合物来源，可能提供新的抗真菌特性。本研究研究了乌尔玛和切尾马尾草丙酮提取物对尖孢镰刀菌的抑菌活性，目的是鉴定其抑菌活性的特异性生物活性化合物，并定量评价其抑菌活性。我们从这两种海藻中提取丙酮提取物，并通过一系列体外实验评估其抗真菌活性。测定各提取物的总酚含量（TPC）和抗氧化能力。采用LC-qTOF-MS/MS进行植物化学分析，分子对接和分子动力学模拟预测鉴定化合物与尖孢霉14- α -去甲基酶的相互作用。榆木和切叶草的TPC分别为2.72±0.009和2.23±0.009 GAE/mg干重。此外，还观察到显著的抗氧化活性，Ulva spp的IC50值为8.38±0.06µg/mL，而S. incisifolium的IC50值为8.01±0.07µg/mL，与抗坏血酸5.23±0.04µg/mL相当。植物化学分析显示萜类、酚类和脂肪酸含量很高。在分子对接中，medicocarpin、corynanthine、merulinic acid等化合物表现出很强的结合亲和力（结合能≤-7.5 kcal/mol）。分子动力学模拟证实了超过100 ns的稳定相互作用，其中medicocarpin表现出最稳定的结合谱。研究表明，紫叶橐吾和切叶橐吾的丙酮提取物对尖孢镰刀菌具有显著的抗真菌活性。特别是Medicocarpin，作为一种抗真菌药物，它是一种有希望进一步开发的候选药物。这些发现强调了海藻衍生化合物作为真菌病原体抗真菌剂的潜力，并强调了进一步研究其在植物病害管理中的实际应用的必要性。具体来说，Medicocarpin作为一种有前途的硅候选物出现，需要进一步的实验验证。

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引用次数: 0

Prospecting technology and economic potential to produce bio-succinic acid: a review 生物琥珀酸的勘探技术及经济潜力综述

Q1 Immunology and Microbiology

Biotechnology Reports

Pub Date : 2025-08-20 DOI: 10.1016/j.btre.2025.e00920

Diniz A.S. Silva , Rafael Luque , Yaimé Delgado-Arcaño , Elen A. Perpetuo , Alisson D. da S. Ruy , Ana Lucia B. de Souza , Luiz A.M. Pontes

Succinic acid (SA) is an organic acid and a key building block with various synthetic applications in the food, pharmaceutical, and chemical industries. Currently produced through petrochemical routes, the use of microorganisms to produce it from biomass waste offers a renewable and sustainable alternative. This study evaluates the main technologies for producing succinic acid via biotechnological routes (BioSA) and its market potential, aiming for commercial production. Research highlights BioSA’s competitive edge and significant capacity to synthesize high-value products, such as 1,4-butanediol and polybutylene succinate (PBS), offering a viable alternative to fossil-derived maleic anhydride. Among BioSA-producing microorganisms, Escherichia coli and Actinobacillus succinogenes are the most promising, achieving titers of 1.10 and 1.23 gg^-1, respectively, and yields of 127.1 and 83.7 gL^-1 under anaerobic conditions at low pH, with genetic modifications to maximize productivity. The market is expected to grow at an annual rate of up to 6.7 % through 2032.

琥珀酸（SA）是一种有机酸，在食品、制药和化学工业中有着广泛的合成应用。目前通过石化途径生产，利用微生物从生物质废物中生产它提供了一种可再生和可持续的替代方案。本研究对生物技术途径（BioSA）生产琥珀酸的主要技术及其市场潜力进行了评价，以期实现商业化生产。研究强调了BioSA的竞争优势和合成高价值产品的显著能力，如1,4-丁二醇和聚丁二酸丁二醇（PBS），为化石来源的马来酸酐提供了可行的替代品。在产生biosa的微生物中，大肠杆菌和丁二酸放线菌是最有前途的，在低pH厌氧条件下，其滴度分别为1.10和1.23 mg -1，产率为127.1和83.7 gL-1。预计到2032年，该市场将以每年6.7%的速度增长。

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引用次数: 0

An iterative approach to statistical optimization of exopolysaccharide produced by fermentation of Aureobasidium pullulans 普鲁兰毛霉发酵产胞外多糖的迭代统计优化方法

Q1 Immunology and Microbiology

Biotechnology Reports

Pub Date : 2025-08-15 DOI: 10.1016/j.btre.2025.e00914

Venessa Dsouza , Goldee Thoidingjam , Abdelrahman Saleh , Michael Zavrel

Exopolysaccharides are biopolymers with wide-ranging industrial applications. To substitute fossil-based by bio-based, biodegradable polymers, exopolysaccharide production needs to become much more efficient. Pullulan, produced by Aureobasidium pullulans, is popular for its unique properties like film-formation, adhesiveness, biodegradability, etc. This study aims at demonstrating the optimization strategy on pullulan production using statistical optimization iteratively. The process followed a systematic approach including One Factor at A Time (OFAT) and Design Of Experiments (DOE). OFAT confirmed sucrose as carbon source, pH 6 and 4 days of incubation were optimum. Iterative Plackett-Burman Design (PBD) and Response Surface Methodology (RSM) further demonstrated interactions between significant media components and incubation conditions. The final pullulan titer was increased 6.34-fold to 113.5 ± 3.5 g/L of EPS, the highest titer achieved for this strain in shake flasks. Future investigations into fed-batch strategies and scale-up studies can be explored to further improve titers and reduce overall production costs.

胞外多糖是一种具有广泛工业应用的生物聚合物。为了用生物基、可生物降解的聚合物代替化石基，外多糖的生产需要变得更加高效。普鲁兰是由普鲁兰毛霉（Aureobasidium pululans）生产的，因其成膜性、粘附性、可生物降解性等独特特性而广受欢迎。本研究旨在利用统计优化迭代法论证普鲁兰生产的优化策略。该过程遵循系统的方法，包括一次一个因素（OFAT）和实验设计（DOE）。OFAT确定蔗糖为碳源，pH为6，培养4 d为最佳。迭代Plackett-Burman设计（PBD）和响应面法（RSM）进一步证明了重要培养基成分与孵卵条件之间的相互作用。最终的普鲁兰滴度提高了6.34倍，达到113.5±3.5 g/L EPS，是该菌株在摇瓶中获得的最高滴度。未来可以探索饲料批量策略和规模研究，以进一步提高滴度并降低总体生产成本。

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引用次数: 0

Structural and functional properties of neodymium-doped hydroxyapatite nanoparticles for biomedical applications 生物医学用掺钕羟基磷灰石纳米颗粒的结构和功能特性

Q1 Immunology and Microbiology

Biotechnology Reports

Pub Date : 2025-08-15 DOI: 10.1016/j.btre.2025.e00916

K.Sai Manogna , K. Kusuma , G.Rajasekhara Reddy , B.Deva Prasad Raju , N.John Sushma

Neodymium (Nd³⁺) doped hydroxyapatite nanoparticles (Han: Nd³⁺ NPs) were synthesized and systematically characterized to evaluate their structural and functional properties for biomedical applications. X-ray diffraction (XRD) confirmed the crystalline phase retention post-doping, while x-ray photoelectron spectroscopy (XPS) revealed the successful incorporation of Nd³⁺ ions. The doping altered the optical and electronic properties, potentially enhancing bioactivity and imaging capabilities. Preliminary cytotoxicity assessments on MCF7 and 4T1 breast cancer cell lines indicated dose-dependent effects, with IC50 values of 36.13 µg/mL and 64.38 µg/mL, respectively. The study concludes that Han: Nd³⁺ NPs offer promise as multifunctional platforms for cytotoxic response and structural stability, with potential for future application in imaging and targeted breast cancer therapy.

合成了钕（Nd³）掺杂羟基磷灰石纳米粒子（Han: Nd³+ NPs）并对其进行了系统表征，以评估其在生物医学应用中的结构和功能特性。x射线衍射（XRD）证实了掺杂后的晶体相保留，而x射线光电子能谱（XPS）则证实了Nd³+离子的成功掺杂。掺杂改变了光学和电子特性，潜在地增强了生物活性和成像能力。MCF7和4T1乳腺癌细胞系的初步细胞毒性评估显示剂量依赖性，IC50值分别为36.13µg/mL和64.38µg/mL。该研究得出结论，Han: Nd³+ NPs作为细胞毒性反应和结构稳定性的多功能平台，具有未来在成像和靶向乳腺癌治疗中的应用潜力。

引用次数: 0

Improvement of protein quality and reduction of anti-nutritional factors in soybean meal by solid-state fermentation with Bacillus siamensis MH03 暹芽孢杆菌MH03固态发酵提高豆粕蛋白质品质和降低抗营养因子

Q1 Immunology and Microbiology

Biotechnology Reports

Pub Date : 2025-08-13 DOI: 10.1016/j.btre.2025.e00915

Tanawut Chotinu-kul, Gunjana Theeragool, Duenrut Chonudomkul

This study investigated the optimal conditions for enhancing protein quality and reducing anti-nutritional factors in soybean meal (SBM) through solid-state fermentation (SSF) with Bacillus. Among 78 isolates, strain MH03 exhibited the highest extracellular enzyme production and efficacy in enhancing SBM quality. Under optimized SSF conditions of 5 kg SBM, 5 cm thickness and 50 % initial moisture for 72 h, strain MH03 increased soluble protein from 3.31±0.21 to 10.16±0.27 g/100 g and significantly reduced anti-nutritional compounds, including glycinin, β-conglycinin, trypsin inhibitor, and oligosaccharides. Crude protein content increased from 47.89±0.07 % to 55.84±0.25 %, with protein solubility increased from 74.96±0.45 % to 90.54±0.28 %, with statistically significant increases. Other nutritional values were also significantly enhanced. Essential amino acids, such as valine, methionine, isoleucine, and lysine also increased. Based on 16S rRNA gene sequencing, MH03 was identified as Bacillus siamensis. These findings highlight the potential of B. siamensis MH03-fermented SBM as a high-quality protein ingredient for animal feed applications.

以豆粕为原料，研究了芽孢杆菌固态发酵提高豆粕蛋白质品质、降低抗营养因子的最佳条件。在78株分离菌株中，菌株MH03的胞外酶产量最高，提高SBM品质的效果最好。在优化的SSF条件下（5 kg SBM， 5 cm厚度，50%初始湿度），菌株MH03可将可溶性蛋白从3.31±0.21 g/100 g提高到10.16±0.27 g/100 g，并显著降低抗营养化合物，包括甘氨酸、β-甘氨酸、胰蛋白酶抑制剂和低聚糖。粗蛋白质含量由47.89±0.07%提高到55.84±0.25%，蛋白质溶解度由74.96±0.45%提高到90.54±0.28%，差异均有统计学意义。其他营养价值也显著提高。必需氨基酸，如缬氨酸、蛋氨酸、异亮氨酸和赖氨酸也增加了。通过16S rRNA基因测序，鉴定MH03为暹罗芽孢杆菌。这些发现突出了暹罗芽孢杆菌mh03发酵SBM作为动物饲料中高质量蛋白质成分的潜力。

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引用次数: 0

Green nanoscience for healthcare: Advancing biomedical innovation through eco-synthesized nanoparticle 绿色医疗纳米科学：通过生态合成纳米颗粒推进生物医学创新

Q1 Immunology and Microbiology

Biotechnology Reports

Pub Date : 2025-08-12 DOI: 10.1016/j.btre.2025.e00913

Anjuman Ayub , Atif Khurshid Wani , Suhaib Mohd Malik , Mehvish Ayub , Reena Singh , Chirag Chopra , Tabarak Malik

Green synthesis is an eco-friendly and sustainable approach to nanoparticle production using biological sources such as plant extracts and microorganisms. Unlike traditional chemical methods, it aligns with green chemistry principles by reducing toxic reagents, minimizing waste, and lowering environmental impact. Green-synthesized nanoparticles have shown great potential, especially in biomedicine, for targeted drug delivery, antimicrobial treatments, and imaging applications. Their properties can be finely tuned by controlling size, shape, and composition, supporting applications across electronics, healthcare, and environmental engineering. Characterization techniques are essential for analyzing their structural and functional attributes. However, challenges remain in terms of scalability, reproducibility, and lack of standardized synthesis protocols. The aim of this review is to explore recent advances in green nanoparticle synthesis, evaluate key mechanisms, highlight biomedical and environmental applications, and discuss current limitations. The review also emphasizes future directions and the need for interdisciplinary collaboration to unlock the full potential of green nanotechnology.

绿色合成是利用植物提取物和微生物等生物来源生产纳米颗粒的一种生态友好和可持续的方法。与传统的化学方法不同，它符合绿色化学原则，减少有毒试剂，最大限度地减少浪费，降低对环境的影响。绿色合成的纳米颗粒已经显示出巨大的潜力，特别是在生物医学，靶向药物输送，抗菌治疗和成像应用。它们的特性可以通过控制尺寸、形状和组成来精细调整，支持电子、医疗保健和环境工程等领域的应用。表征技术是分析其结构和功能属性的关键。然而，在可伸缩性、再现性和缺乏标准化合成协议方面仍然存在挑战。本综述旨在探讨绿色纳米颗粒合成的最新进展，评估关键机制，突出生物医学和环境应用，并讨论当前的局限性。该综述还强调了未来的方向和跨学科合作的需要，以释放绿色纳米技术的全部潜力。

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引用次数: 0

Cyclodextrins in action: Modulating candida albicans biofilm formation and morphology 环糊精的作用：调节白色念珠菌生物膜的形成和形态

Q1 Immunology and Microbiology

Biotechnology Reports

Pub Date : 2025-08-09 DOI: 10.1016/j.btre.2025.e00912

Rita Márton , Hanna Hermann , Virág Tünde Kiss , Éva Fenyvesi , Lajos Szente , Mónika Molnár

The primary objective of this research was to explore the bioactive potential of cyclodextrins in attenuating biofilm formation in C. albicans. The concentration-dependent effects of both native cyclodextrins and specific derivatives were studied at concentrations ranging from 0.1 to 12.5 mM, to determine the mechanisms by which the extent of biofilm formation can be reduced. Besides, the efficiency of various combinations of cyclodextrins and farnesol, as an antifungal substance, were examined.

The present study revealed both stimulatory and inhibitory effects of cyclodextrins on biofilm formation, depending on the structure and concentration. The bioactive potential of randomly methylated α- and γ-CD showed significant antifungal properties, as evidenced by a reduction in the biofilm formation. In addition, randomly methylated cyclodextrins were found to significantly enhance the antifungal activity of farnesol against C. albicans. Consequently, their synergistic effect may provide an excellent opportunity to produce a lower dose but more effective anticandidal formulation.

本研究的主要目的是探讨环糊精在减少白色念珠菌生物膜形成中的生物活性潜力。在0.1至12.5 mM的浓度范围内，研究了天然环糊精和特定衍生物的浓度依赖性效应，以确定生物膜形成程度降低的机制。此外，还考察了环糊精和法尼醇的不同组合作为抗真菌物质的效果。本研究揭示了环糊精对生物膜形成的刺激和抑制作用，这取决于其结构和浓度。随机甲基化的α-和γ-CD的生物活性潜力显示出显著的抗真菌特性，这可以通过减少生物膜形成来证明。此外，随机甲基化的环糊精可以显著增强法尼醇对白色念珠菌的抗真菌活性。因此，它们的协同作用可能为生产低剂量但更有效的抗药制剂提供了极好的机会。

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引用次数: 0

Seaweed-derived bioactives with anti-tyrosinase activity: a potential for skin-whitening cosmetics with in silico and in vitro approaches. 具有抗酪氨酸酶活性的海藻来源的生物活性物质：用硅和体外方法进行皮肤美白化妆品的潜力。

Q1 Immunology and Microbiology

Biotechnology Reports

Pub Date : 2025-08-07 eCollection Date: 2025-09-01 DOI: 10.1016/j.btre.2025.e00910

Arachaporn Thong-Olran, Supatchar Sermsakulwat, Tiwtawat Napiroon, Phuphiphat Jaikaew, Sumet Kongkiatpaiboon, Ngampuk Tayana, Bongkot Wichachucherd, Theppanya Charoenrat, Thrissawan Traijitt, Supenya Chittapun

Seaweed is a promising source of bioactive compounds with potential applications in skincare, particularly for addressing hyperpigmentation. This study investigated the chemical profiles and biological activities of hydrophilic and lipophilic extracts from Sargassum polycystum, Caulerpa lentillifera, and Gracilaria fisheri. LC-MS and GC-MS analyses identified 8 and 112 compounds in hydrophilic and lipophilic extracts, respectively. Among these, G. fisheri lipophilic extracts exhibited the strongest anti-tyrosinase activity. Molecular docking identified eight compounds with low binding affinities comparable to kojic acid and tropolone, while ADMET predictions highlighted stigmasterol for its favorable skin permeability and safety. In vitro cytotoxicity assays confirmed its low toxicity (IC₅₀ = 3.38 ± 0.28 µg/mL) with no adverse effects at 0.006 µg/mL. Trypsin stability assays and molecular docking against serine proteases (trypsin and chymotrypsin) showed no significant off-target interactions. These findings suggest stigmasterol as a safe, selective, and effective natural tyrosinase inhibitor for potential use in skin-whitening formulation.

海藻是一种很有前途的生物活性化合物来源，在皮肤护理中具有潜在的应用，特别是在解决色素沉着方面。研究了马尾藻、小扁豆和凤尾草的亲水和亲脂提取物的化学特征和生物活性。LC-MS和GC-MS分析分别鉴定出亲水性和亲脂性提取物中的8种和112种化合物。其中，鱼腥鱼亲脂提取物的抗酪氨酸酶活性最强。分子对接鉴定了8种与曲酸和曲polone具有低结合亲和力的化合物，而ADMET预测强调了豆甾醇具有良好的皮肤渗透性和安全性。体外细胞毒性试验证实其低毒性（IC50 = 3.38±0.28µg/mL）， 0.006µg/mL时无不良反应。胰蛋白酶稳定性分析和与丝氨酸蛋白酶（胰蛋白酶和凝乳胰蛋白酶）的分子对接显示没有明显的脱靶相互作用。这些发现表明，豆甾醇是一种安全、选择性和有效的天然酪氨酸酶抑制剂，可能用于皮肤美白配方。

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引用次数: 0

Microalgae: revolutionizing skin repair and enhancement. 微藻：革命性的皮肤修复和增强。

Q1 Immunology and Microbiology

Biotechnology Reports

Pub Date : 2025-08-06 eCollection Date: 2025-09-01 DOI: 10.1016/j.btre.2025.e00911

Negin Chinjoo, Abooali Golzary

Microalgae are attracting growing interest in the cosmetics industry due to their rich content of antioxidants, vitamins, and polyunsaturated fatty acids, which offer anti-aging, anti-inflammatory, and photoprotective benefits. Current research primarily focuses on individual species and isolated bioactive compounds. Several challenges persist, including scalability, cost-effective production, low biomass yields, and regulatory constraints. From an environmental perspective, microalgae can be sustainably cultivated on non-arable land, using recycled water and capturing CO₂, thus reducing carbon emissions. Technological advancements, such as photobioreactor systems, have further enhanced resource efficiency and minimized ecological impact. This review explores multiple microalgal species and their combined bioactive potential for innovative cosmetic formulations. By integrating green extraction techniques and circular economy principles, microalgae-based products can meet rising consumer demand for clean beauty while promoting sustainability. With increasing clinical evidence and ongoing technological progress, microalgae hold significant promise for driving eco-friendly innovation in the cosmetics sector.

由于微藻富含抗氧化剂、维生素和多不饱和脂肪酸，具有抗衰老、抗炎和光防护的功效，因此在化妆品行业引起了越来越多的兴趣。目前的研究主要集中在单个物种和分离的生物活性化合物上。一些挑战仍然存在，包括可扩展性、成本效益、低生物量产量和监管限制。从环境的角度来看，微藻可以在非耕地上可持续种植，利用循环水并捕获二氧化碳，从而减少碳排放。光生物反应器系统等技术进步进一步提高了资源效率，并将生态影响降至最低。本文综述了多种微藻及其在创新化妆品配方中的综合生物活性潜力。通过整合绿色提取技术和循环经济原则，微藻产品可以满足消费者对清洁美的需求，同时促进可持续性。随着越来越多的临床证据和持续的技术进步，微藻在推动化妆品行业的环保创新方面具有重要的前景。

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引用次数: 0

Prioritizing repurposable drugs for Alzheimer’s disease using network-based analysis with concurrent assessment of Long QT syndrome risk 利用基于网络的分析对阿尔茨海默病的可重复使用药物进行优先排序，同时评估长QT综合征的风险

Q1 Immunology and Microbiology

Biotechnology Reports

Pub Date : 2025-07-29 DOI: 10.1016/j.btre.2025.e00909

Alessio Funari , Enrico De Smaele , Paola Paci , Giulia Fiscon

Alzheimer's disease affects 6.9 million Americans aged 65 and older, a number expected to double by 2060. Eight FDA-approved drugs target Alzheimer's, but no cure is available, and most treatments are symptomatic. Drug repurposing, the use of FDA-approved drugs for new indications, is a promising strategy to address this lack of effective therapies. However, despite prior safety approval, repurposable drugs may still trigger unexpected side-effects in new contexts. This study introduces a network-based approach to minimize side-effect risk in drug repositioning, focusing on QT interval prolongation, a cardiac side-effect observed in Alzheimer's patients treated with acetylcholinesterase inhibitors. The method integrates Mode-of-Action and Random Walk with Restart analyses to identify repositioning candidates while assessing QT-related risk. This strategy identified promising compounds including acamprosate, tolcapone, sitagliptin, and diazoxide, with potential to mitigate disease pathology. Gene set enrichment analysis was used to computationally assess the compounds' ability to reverse disease-related gene expression signatures.

阿尔茨海默病影响了690万65岁及以上的美国人，预计到2060年这一数字将翻一番。fda批准了八种针对阿尔茨海默氏症的药物，但目前还没有治愈方法，而且大多数治疗方法都是对症治疗。药物再利用，即使用fda批准的药物用于新的适应症，是解决这种缺乏有效治疗的有希望的策略。然而，尽管先前的安全性批准，可重复使用的药物仍可能在新的情况下引发意想不到的副作用。本研究介绍了一种基于网络的方法来最小化药物重新定位的副作用风险，重点关注QT间期延长，这是在使用乙酰胆碱酯酶抑制剂治疗的阿尔茨海默病患者中观察到的心脏副作用。该方法将动作模式和随机游走与重新启动分析相结合，在评估qt相关风险的同时确定重新定位的候选对象。该策略确定了有希望的化合物，包括阿坎普罗酸、托尔卡彭、西格列汀和二氮氧化合物，具有减轻疾病病理的潜力。基因集富集分析用于计算评估化合物逆转疾病相关基因表达特征的能力。

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引用次数: 0