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Perfusion Parameter Map Generation from 3 Phases of Computed Tomography Perfusion in Stroke Using Generative Adversarial Networks. 基于生成对抗网络的脑卒中ct灌注3个阶段的灌注参数图生成。
IF 11 1区 综合性期刊
Research Pub Date : 2025-04-30 eCollection Date: 2025-01-01 DOI: 10.34133/research.0689
Cuidie Zeng, Xiaoling Wu, Fusheng Ouyang, Baoliang Guo, Xiao Zhang, Jianghua Ma, Dong Zeng, Bin Zhang
{"title":"Perfusion Parameter Map Generation from 3 Phases of Computed Tomography Perfusion in Stroke Using Generative Adversarial Networks.","authors":"Cuidie Zeng, Xiaoling Wu, Fusheng Ouyang, Baoliang Guo, Xiao Zhang, Jianghua Ma, Dong Zeng, Bin Zhang","doi":"10.34133/research.0689","DOIUrl":"https://doi.org/10.34133/research.0689","url":null,"abstract":"<p><p>Computed tomography perfusion (CTP) plays a crucial role in guiding reperfusion therapy and patient selection for acute ischemic stroke (AIS) through perfusion parameter maps of the brain; however, its widespread use is limited by the complexity of acquisition protocols and high radiation dose. Previous studies have attempted to reduce radiation exposure by equally lowering the temporal sampling rate; however, it may miss the peak of arterial enhancement, leading to underestimation of blood flow parameter. Here, we investigate the feasibility of using a generative adversarial network (GAN) to generate perfusion maps from 3 phases of CTP (mCTP). The three phases were chosen based on the multiphase computed tomography angiography scanning protocol: the peak arterial input function phase, the peak venous output function phase, and the delayed venous output function phase. The findings demonstrate that the GAN model achieved high visual overlap and performance for cerebral blood flow and time-to-maximum maps, with a mean structural similarity index measure of 0.921 to 0.971 and 0.817 to 0.883, a mean normalized root mean squared error of 0.019 to 0.108 and 0.058 to 0.064, and a mean learned perceptual image patch similarity of 0.039 to 0.088 and 0.141 to 0.146, respectively. For the 2 external datasets, the volume agreement between the model- and CTP-derived infarct and hypoperfusion areas was the intraclass correlation coefficient of 0.731 to 0.883 and 0.499 to 0.635, and the Spearman correlation coefficient of 0.720 to 0.808 and 0.533 to 0.6540, respectively. Qualitative assessments of diagnostic quality further confirmed that the mCTP-derived maps were comparable to those obtained from traditional CTP. In conclusion, the GAN-based model is effective in generating perfusion maps from mCTP, which could serve as a viable alternative to traditional CTP in the diagnostic evaluation of AIS.</p>","PeriodicalId":21120,"journal":{"name":"Research","volume":"8 ","pages":"0689"},"PeriodicalIF":11.0,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12041647/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143978068","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The Discovery of Phages in the Substantia Nigra and Its Implication for Parkinson's Disease. 黑质噬菌体的发现及其对帕金森病的意义。
IF 11 1区 综合性期刊
Research Pub Date : 2025-04-30 eCollection Date: 2025-01-01 DOI: 10.34133/research.0657
Yun Zhao, Changxian Xiong, Bingwei Wang, Daotong Li, Jiarui Liu, Shizhang Wei, Yujia Hou, Yuan Zhou, Ruimao Zheng
{"title":"The Discovery of Phages in the Substantia Nigra and Its Implication for Parkinson's Disease.","authors":"Yun Zhao, Changxian Xiong, Bingwei Wang, Daotong Li, Jiarui Liu, Shizhang Wei, Yujia Hou, Yuan Zhou, Ruimao Zheng","doi":"10.34133/research.0657","DOIUrl":"https://doi.org/10.34133/research.0657","url":null,"abstract":"<p><p><b>Background:</b> A century ago, a mystery between a virus and Parkinson's disease (PD) was described. Owing to the limitation of human brain biopsy and the challenge of electron microscopy in observing virions in human brain tissue, it has been difficult to study the viral etiology of PD. Recent discovery of virobiota reveals that viruses coexist with humans as symbionts. Newly developed transcriptomic sequencing and novel bioinformatic approaches for mining the encrypted virome in human transcriptome make it possible to study the relationship between symbiotic viruses and PD. Nevertheless, whether viruses exist in the human substantia nigra (SN) and whether symbiotic viruses underlie PD pathogenesis remain unknown. <b>Methods:</b> We collected current worldwide human SN transcriptomic datasets from the United States, the United Kingdom, the Netherlands, and Switzerland. We used bioinformatic approaches including viruSITE and the Viral-Track to identify the existence of viruses in the SN of patients. The comprehensive RNA sequencing-based virome analysis pipeline was used to characterize the virobiota in the SN. The Pearson's correlation analysis was used to examine the association between the viral RNA fragment counts (VRFCs) and PD-related human gene sequencing reads in the SN. The differentially expressed genes (DEGs) in the SN between PD patients and non-PD individuals were used to examine the molecular signatures of PD and also evaluate the impact of symbiotic viruses on the SN. <b>Findings:</b> We observed the existence of viruses in the human SN. A dysbiosis of virobiota was found in the SN of PD patients. A marked correlation between VRFC and PD-related human gene expression was detected in the SN of PD patients. These PD-related human genes correlated to VRFC were named as the virus-correlated PD-related genes (VPGs). We identified 3 bacteriophages (phages), including the <i>Proteus</i> phage VB_PmiS-Isfahan, the <i>Escherichia</i> phage phiX174, and the <i>Lactobacillus</i> phage Sha1, that might impair the gene expression of neural cells in the SN of PD patients. The <i>Proteus</i> phage VB_PmiS-Isfahan was a common virus in the SN of patients from the United Kingdom, the Netherlands, and Switzerland. VPGs and DEGs together highlighted that the phages might dampen dopamine biosynthesis and weaken the cGAS-STING function. <b>Interpretation:</b> This is the first study to discover the involvement of phages in PD pathogenesis. A lifelong low symbiotic viral load in the SN may be a contributor to PD pathogenesis. Our findings unlocked the black box between brain virobiota and PD, providing a novel insight into PD etiology from the perspective of phage-human symbiosis.</p>","PeriodicalId":21120,"journal":{"name":"Research","volume":"8 ","pages":"0657"},"PeriodicalIF":11.0,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12041648/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144023393","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Erratum to "Aggravated Ulcerative Colitis via circNlgn-Mediated Suppression of Nuclear Actin Polymerization". “通过环lnn介导的核肌动蛋白聚合抑制加重溃疡性结肠炎”的勘误。
IF 11 1区 综合性期刊
Research Pub Date : 2025-04-29 eCollection Date: 2025-01-01 DOI: 10.34133/research.0684
William W Du, Chi Zhou, Hui Yang, Shuoyang Wen, Yu Chen, Eric X Chen, Xiuwei H Yang, Feiya Li, Kevin Y Du, Hui Yuan, Ting Ye, Javeria Qadir, Burton B Yang
{"title":"Erratum to \"Aggravated Ulcerative Colitis via circNlgn-Mediated Suppression of Nuclear Actin Polymerization\".","authors":"William W Du, Chi Zhou, Hui Yang, Shuoyang Wen, Yu Chen, Eric X Chen, Xiuwei H Yang, Feiya Li, Kevin Y Du, Hui Yuan, Ting Ye, Javeria Qadir, Burton B Yang","doi":"10.34133/research.0684","DOIUrl":"https://doi.org/10.34133/research.0684","url":null,"abstract":"<p><p>[This corrects the article DOI: 10.34133/research.0441.].</p>","PeriodicalId":21120,"journal":{"name":"Research","volume":"8 ","pages":"0684"},"PeriodicalIF":11.0,"publicationDate":"2025-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12038258/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144027764","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Microrobotic Swarms for Cancer Therapy. 用于癌症治疗的微型机器人群。
IF 11 1区 综合性期刊
Research Pub Date : 2025-04-29 eCollection Date: 2025-01-01 DOI: 10.34133/research.0686
Leiming Xie, Jinbo Liu, Zhen Yang, Hui Chen, Yibin Wang, Xingzhou Du, Yongping Fu, Peng Song, Jiangfan Yu
{"title":"Microrobotic Swarms for Cancer Therapy.","authors":"Leiming Xie, Jinbo Liu, Zhen Yang, Hui Chen, Yibin Wang, Xingzhou Du, Yongping Fu, Peng Song, Jiangfan Yu","doi":"10.34133/research.0686","DOIUrl":"https://doi.org/10.34133/research.0686","url":null,"abstract":"<p><p>Microrobotic swarms hold great promise for the revolution of cancer treatment. The coordination of miniaturized microrobots offers a unique approach to treating cancers at the cellular level with enhanced delivery efficiency and environmental adaptability. Prior studies have summarized the design, functionalization, and biomedical applications of microrobotic swarms. The strategies for actuation and motion control of swarms have also been introduced. In this review, we first give a detailed introduction to microrobot swarming. We then explore the design of microrobots and microrobotic swarms specifically engineered for cancer therapy, with a focus on tumor targeting, infiltration, and therapeutic efficacy. Moreover, the latest developments in active delivery methods and imaging techniques that enhance the precision of these systems are discussed. Finally, we categorize and analyze the various cancer therapies facilitated by functional microrobotic swarms, highlighting their potential to revolutionize treatment strategies for different cancer types.</p>","PeriodicalId":21120,"journal":{"name":"Research","volume":"8 ","pages":"0686"},"PeriodicalIF":11.0,"publicationDate":"2025-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12038165/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144009716","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Discovery of a Novel Selective PAK1/HDAC6/HDAC10 Inhibitor ZMF-25 that Induces Mitochondrial Metabolic Breakdown and Autophagy-Related Cell Death in Triple-Negative Breast Cancer. 新型选择性PAK1/HDAC6/HDAC10抑制剂ZMF-25在三阴性乳腺癌中诱导线粒体代谢分解和自噬相关细胞死亡的发现
IF 11 1区 综合性期刊
Research Pub Date : 2025-04-29 eCollection Date: 2025-01-01 DOI: 10.34133/research.0670
Jin Zhang, Xiaoling Cheng, Gang Chen, Xiya Chen, Xi Zhao, Weiji Chen, Wei Du, Zhendan He, Xiaojun Yao, Bo Han, Dahong Yao
{"title":"Discovery of a Novel Selective PAK1/HDAC6/HDAC10 Inhibitor ZMF-25 that Induces Mitochondrial Metabolic Breakdown and Autophagy-Related Cell Death in Triple-Negative Breast Cancer.","authors":"Jin Zhang, Xiaoling Cheng, Gang Chen, Xiya Chen, Xi Zhao, Weiji Chen, Wei Du, Zhendan He, Xiaojun Yao, Bo Han, Dahong Yao","doi":"10.34133/research.0670","DOIUrl":"https://doi.org/10.34133/research.0670","url":null,"abstract":"<p><p>Triple-negative breast cancer (TNBC) is the most aggressive breast cancer subtype, and addressing its intrinsic heterogeneity has emerged as a valuable avenue for novel clinical treatment strategy. Here, we put forward an innovative strategy for TNBC treatment by simultaneously suppressing both p21-activated kinase 1 (PAK1) and histone deacetylase (HDAC) class IIb (HDAC6/10). A series of pyrido [2,3-d]pyrimidin-7(8<i>H</i>)-one moiety derivatives was successfully designed and synthesized to target PAK1/HDAC6/HDAC10 by utilizing structure-based screening and pharmacophore integration. ZMF-25 demonstrates marked inhibitory activity against PAK1, HDAC6, and HDAC10 with respective IC<sub>50</sub> values of 33, 64, and 41 nM, remarkable selectivity over HDACs and PAKs, as well as prominent antiproliferative efficiency in MDA-MB-231 cells. Additionally, ZMF-25 effectively suppresses TNBC proliferation and migration by inhibiting PAK1/HDAC6/HDAC10. Moreover, it was found to impair glycolysis and trigger reactive oxygen species generation, resulting in autophagy-related cell death by inhibiting the AKT/mTOR/ULK1 signaling. Furthermore, ZMF-25 exhibits remarkable therapeutic potential with no obvious toxicity in vivo and good pharmacokinetics. In summary, these observations indicate that ZMF-25 is a novel and potent triple-targeting PAK1/HDAC6/HDAC10 inhibitor, which is expected to provide a novel and effective strategy for TNBC treatment.</p>","PeriodicalId":21120,"journal":{"name":"Research","volume":"8 ","pages":"0670"},"PeriodicalIF":11.0,"publicationDate":"2025-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12038163/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144021492","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Marine N-3 Fatty Acids Mitigate Hyperglycemia in Prediabetes by Improving Muscular Glucose Transporter 4 Translocation and Glucose Homeostasis. 海洋N-3脂肪酸通过改善肌肉葡萄糖转运蛋白4易位和葡萄糖稳态来减轻前驱糖尿病患者的高血糖。
IF 11 1区 综合性期刊
Research Pub Date : 2025-04-29 eCollection Date: 2025-01-01 DOI: 10.34133/research.0683
Haoyu Li, Pan Zhuang, Xiaohui Liu, Yin Li, Yang Ao, Yimei Tian, Wei Jia, Yu Zhang, Jingjing Jiao
{"title":"Marine N-3 Fatty Acids Mitigate Hyperglycemia in Prediabetes by Improving Muscular Glucose Transporter 4 Translocation and Glucose Homeostasis.","authors":"Haoyu Li, Pan Zhuang, Xiaohui Liu, Yin Li, Yang Ao, Yimei Tian, Wei Jia, Yu Zhang, Jingjing Jiao","doi":"10.34133/research.0683","DOIUrl":"https://doi.org/10.34133/research.0683","url":null,"abstract":"<p><p>Docosahexaenoic acid (DHA) and eicosapentaenoic acid (EPA) have been proposed to benefit cardiometabolic health. However, the relationship between the intake of DHA and EPA and type 2 diabetes (T2D) risk remains equivocal, and the effects of DHA and EPA on skeletal muscle, the primary organ for glucose metabolism, merit further investigation. Here, we show that habitual fish oil supplementation was associated with a 9% lower T2D risk and significantly interacted with variants at GLUT4 in a prospective cohort of 48,358 people with prediabetes. Muscular metabolome analysis in the animal study revealed that DHA and EPA altered branched-chain amino acids, creatine, and glucose oxidation-related metabolites, concurrently with elevated muscular glycogen synthase and pyruvate dehydrogenase contents that promoted glucose disposal. Further myotube investigation revealed that DHA and EPA promoted muscular GLUT4 translocation by elevating Rab GTPases and target-SNARE expression. Together, DHA and EPA supplementation provides a promising approach for T2D prevention through targeting muscular glucose homeostasis, including enhancing GLUT4 translocation, glycogen synthesis, and aerobic glycolysis.</p>","PeriodicalId":21120,"journal":{"name":"Research","volume":"8 ","pages":"0683"},"PeriodicalIF":11.0,"publicationDate":"2025-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12038161/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144009331","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Three-Dimensional Printable Color-Modulation and Shape-Programmable Structures: An Encryption Key for Image Recognition Electronic Locks. 三维可打印颜色调制和形状可编程结构:图像识别电子锁的加密密钥。
IF 11 1区 综合性期刊
Research Pub Date : 2025-04-25 eCollection Date: 2025-01-01 DOI: 10.34133/research.0666
Beibei Du, Xiayu Zhang, Teng Wang, Yunfei He, Mingyao Shen, Tao Yu
{"title":"Three-Dimensional Printable Color-Modulation and Shape-Programmable Structures: An Encryption Key for Image Recognition Electronic Locks.","authors":"Beibei Du, Xiayu Zhang, Teng Wang, Yunfei He, Mingyao Shen, Tao Yu","doi":"10.34133/research.0666","DOIUrl":"https://doi.org/10.34133/research.0666","url":null,"abstract":"<p><p>Stimuli-responsive materials have shown promising applications in the areas of sensing, bioimaging, information encryption, and bioinspired camouflage. In particular, multi-stimuli-responsive materials represent a hot topic due to their modulated properties under multiple stimuli. Herein, we successfully developed multi-stimuli-responsive inks and a series of complex multi-stimuli-responsive 3-dimensional (3D) structures were fabricated via digital light processing 3D-printing technology. Notably, these complex 3D structures show shape memory, fast-response photochromic and thermochromic behavior, and excellent repeatability due to the combination of photochromic molecules (4-(2,2-bis(4-fluorophenyl)vinyl) benzyl methacrylate) and thermochromic pigments. Furthermore, a programmable encrypted box that changes colors and morphology by controlling temperature and ultraviolet irradiation was designed and printed, and this encrypted box exhibits strong security using OpenCV-based image recognition technology. This strategy provides a promising approach for the design of multi-stimuli-responsive materials and complex encryption systems in the future.</p>","PeriodicalId":21120,"journal":{"name":"Research","volume":"8 ","pages":"0666"},"PeriodicalIF":11.0,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12022503/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143996386","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Low-Intensity Pulsed Ultrasound Promotes Oligodendrocyte Maturation and Remyelination by Down-regulating the Interleukin-17A/Notch1 Signaling Pathway in Mice with Ischemic Stroke. 低强度脉冲超声通过下调白细胞介素- 17a /Notch1信号通路促进缺血性脑卒中小鼠少突胶质细胞成熟和再髓鞘形成
IF 11 1区 综合性期刊
Research Pub Date : 2025-04-25 eCollection Date: 2025-01-01 DOI: 10.34133/research.0676
Jingjing Wang, Yuxiao Gao, Bin Wang, Cong Zhang, Yi Yuan, Renhao Xu, Hui Ji, Xiangjian Zhang
{"title":"Low-Intensity Pulsed Ultrasound Promotes Oligodendrocyte Maturation and Remyelination by Down-regulating the Interleukin-17A/Notch1 Signaling Pathway in Mice with Ischemic Stroke.","authors":"Jingjing Wang, Yuxiao Gao, Bin Wang, Cong Zhang, Yi Yuan, Renhao Xu, Hui Ji, Xiangjian Zhang","doi":"10.34133/research.0676","DOIUrl":"https://doi.org/10.34133/research.0676","url":null,"abstract":"<p><p>Increasing evidence indicates that oligodendrocyte (OL) numbers and myelin as a dynamic cellular compartment perform a key role in the maintenance of neuronal function. Inhibiting white matter (WM) demyelination or promoting remyelination has garnered interest for its potential therapeutic strategy against ischemic stroke. Our previous work has shown that low-intensity pulsed ultrasound (LIPUS) could improve stroke recovery. However, it is unclear whether LIPUS can maintain WM integrity early after stroke or promote late WM repair. This study evaluated the efficacy of LIPUS on WM repair and long-term neurologic recovery after stroke. Male adult C57BL/6 mice underwent a focal cerebral ischemia model and were randomized to receive ultrasound stimulation (30 min once daily for 14 days). The effect of LIPUS on sensorimotor function was assessed by modified neurological severity score, rotarod test, grip strength test, and gait analysis up to 28 days after stroke. We found that ischemic stroke-induced WM damage was severe on day 7 and partially recovered on day 28. LIPUS prevented neuronal and oligodendrocyte progenitor cell (OPC) death during the acute phase of stroke (d7), protected WM integrity, and reduced brain atrophy and tissue damage during the recovery phase (d28). To further confirm the effect of LIPUS on remyelination, we assessed the proliferation and differentiation of OPCs. We found that LIPUS did not increase the number of OPCs (PDGFRα<sup>+</sup> or NG2<sup>+</sup>), but markedly increased the number of newly produced mature OLs (APC<sup>+</sup>) and myelin protein levels. Mechanistically, LIPUS may promote OL maturation and remyelination by down-regulating the interleukin-17A/Notch1 signaling pathway. In summary, LIPUS can protect OLs and neurons early after stroke and promote long-term WM repair and functional recovery. LIPUS will be a viable strategy for the treatment of ischemic stroke in the future.</p>","PeriodicalId":21120,"journal":{"name":"Research","volume":"8 ","pages":"0676"},"PeriodicalIF":11.0,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12022504/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144042447","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Alanine Derived from Ruminococcus_E bovis Alleviates Energy Metabolic Disorders during the Peripartum Period by Providing Glucogenic Precursors. 源自牛瘤胃球菌的丙氨酸通过提供糖原前体缓解围生期能量代谢紊乱。
IF 11 1区 综合性期刊
Research Pub Date : 2025-04-25 eCollection Date: 2025-01-01 DOI: 10.34133/research.0682
Fanlin Kong, Shuo Wang, Yijia Zhang, Chen Li, Dongwen Dai, Yajing Wang, Zhijun Cao, Hongjian Yang, Shengli Li, Wei Wang
{"title":"Alanine Derived from <i>Ruminococcus_E bovis</i> Alleviates Energy Metabolic Disorders during the Peripartum Period by Providing Glucogenic Precursors.","authors":"Fanlin Kong, Shuo Wang, Yijia Zhang, Chen Li, Dongwen Dai, Yajing Wang, Zhijun Cao, Hongjian Yang, Shengli Li, Wei Wang","doi":"10.34133/research.0682","DOIUrl":"https://doi.org/10.34133/research.0682","url":null,"abstract":"<p><p>Peripartum dairy cows commonly experience energy metabolism disorders, which lead to passive culling of postpartum cows and a decrease in milk quality. By using ketosis peripartum dairy cows as a model, this study aims to elucidate the metabolic mechanism of peripartum cows and provide a novel way for managing energy metabolic disorders. From a cohort of 211 cows, we integrated multi-omics data (metagenomics, metabolomics, and transcriptomics) to identify key microbes and then utilized an in vitro rumen fermentation simulation system and ketogenic hepatic cells to validate the potential mechanisms and the effects of postbiotics derived from key microbes. Postpartum cows with metabolic disorders compensate for glucose deficiency through mobilizing muscle proteins, which leads to marked decreases in milk protein content. Concurrently, these cows experience rumen microbiota disturbance, with marked decreases in the concentrations of volatile fatty acids and microbial protein, and the deficiency of alanine (Ala) in microbial protein is correlated with the metabolic disorder phenotype. Metagenomic binning and in vitro fermentation assays reveal that <i>Ruminococcus_E bovis</i> (MAG 189) is enriched in amino acid biosynthesis functions and responsible for Ala synthesis. Furthermore, transcriptomic and metabolomic analyses of the liver in metabolic disorder cows also show impaired amino acid metabolism. Supplementation with Ala can alleviate ketogenesis in liver cell models by activating the gluconeogenesis pathway. This study reveals that <i>Ruminococcus_E bovis</i> is associated with host energy metabolism homeostasis by supplying glucogenic precursors to the liver and suggests the use of Ala as a method for the treatment of energy metabolism disorders in peripartum cows.</p>","PeriodicalId":21120,"journal":{"name":"Research","volume":"8 ","pages":"0682"},"PeriodicalIF":11.0,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12022398/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144043909","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Multifunctional Magnetic Catheter Robot with Triaxial Force Sensing Capability for Minimally Invasive Surgery. 具有三轴力传感功能的微创手术多功能磁导管机器人。
IF 11 1区 综合性期刊
Research Pub Date : 2025-04-24 eCollection Date: 2025-01-01 DOI: 10.34133/research.0681
Shixiong Fu, Shiyuan Dong, Haolan Shen, Zhiqiang Chen, Guoyao Ma, Mingxue Cai, Chenyang Huang, Qianbi Peng, Chenyao Bai, Yuming Dong, Huanhuan Liu, Tianyu Yang, Tiantian Xu
{"title":"Multifunctional Magnetic Catheter Robot with Triaxial Force Sensing Capability for Minimally Invasive Surgery.","authors":"Shixiong Fu, Shiyuan Dong, Haolan Shen, Zhiqiang Chen, Guoyao Ma, Mingxue Cai, Chenyang Huang, Qianbi Peng, Chenyao Bai, Yuming Dong, Huanhuan Liu, Tianyu Yang, Tiantian Xu","doi":"10.34133/research.0681","DOIUrl":"https://doi.org/10.34133/research.0681","url":null,"abstract":"<p><p>Magnetic continuum robots offer flexibility and controllability, making them promising for minimally invasive surgery (MIS). However, the clinical application of these robots is relatively limited due to the difficulty of integrating miniaturized triaxial force sensors and their single functionality. This paper proposes a multifunctional magnetic catheter robot with magnetic actuation steering and triaxial force-sensing capabilities. The robot features 3 channels at its tip that integrate multi-segmented magnets, a novel triaxial force sensor, and various functional instruments. The sensor is calibrated, demonstrating high sensitivity and accuracy. The steering characterization of the robot confirms that the catheter tip exhibits effective flexibility and force sensing. Palpation experiments involving various hard lumps are performed on porcine kidney, with results verifying that the robot can reliably detect abnormal hard lumps within tissues. Additionally, palpation experiments in bronchial phantom demonstrate the robot's imaging and palpation capabilities for lung nodules with an integrated endoscope. Further, the robot, equipped with biopsy forceps, successfully performs palpation and biopsy functions on simulated stomach polyps, demonstrating its capability for effective tissue manipulation. By leveraging force-sensing capabilities and integrating multifunctional instruments, the robot shows potential for expanded applications in MIS, paving the way for important advancements in clinical procedures.</p>","PeriodicalId":21120,"journal":{"name":"Research","volume":"8 ","pages":"0681"},"PeriodicalIF":11.0,"publicationDate":"2025-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12018763/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144049832","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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