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Bifidobacterium adolescentis CCFM8630 Exerts Anti-Obesity Effects by Modulating Gut Microbiota-Related Tryptophan Metabolism

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Food Science and Human Wellness 2024年

作者： Bo Zhang Linlin Wang Peijun Tian Xing Jin Ming Liang Zehua Chen Jianxin Zhao Hao Zhang Gang Wang State Key laboratory of Food Science and Resources Jiangnan University School of Food Science and Technology Jiangnan University National Engineering research Center for Functional Food Jiangnan University (Yangzhou) Institute of Food Biotechnology Jiangnan University Infinitus (China) Company Ltd. Wuxi translational Medicine research Center and Jiangsu translational Medicine research Institute Wuxi Branch

Obesity is a major focus of researchers due to its increasing prevalence and relationship with other diseases， such as cancer and cardiovascular diseases. Probiotics are active microorganisms and have been proven to alleviate obesity by modulating the microbiota. In this study， we found that oral administration of Bifidobacterium adolescentis CCFM8630 to obese mice inhibited high-fat-diet (HFD)-induced changes in body weight and adipose tissue and alleviated hepatic oxidative stress. Furthermore， B. adolescentis CCFM8630 treatment primarily affected the relative abundances of the phyla Proteobacteria and Actinobacteria， and thereby decreased the production of lipopolysaccharide (LPS) and the occurrence of LPS-related diseases. A high fiber intake increased the abundance of Lactobacillus and the concentrations of short-chain fatty acids in obese mice， but these changes were reversed by B. adolescentis CCFM8630 treatment. In addition， targeted metabolomic analysis and microbiota relationship analysis revealed that B. adolescentis CCFM8630 treatment modified the microbiota of obese mice by promoting the conversion of tryptophan (Trp) to xanthurenic acid， kynurenic acid， tryptamine， indole-3-acetic acid， and indole-3-carboxaldehyde; facilitated the expression of interleukin-17A and the aryl hydrocarbon receptor to generate interleukin-22 in the colon; and upregulated the expression of tight junction proteins， thereby strengthening intestinal barriers. In summary， our findings suggest that the intake of B. adolescentis CCFM8630 may alleviate obesity by modulating the gut microbiota and related Trp metabolism.

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Delivering Microrobots in the Musculoskeletal System

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Nano-Micro Letters 2024年第11期16卷 585-617页

作者： Mumin Cao Renwang Sheng Yimin Sun Ying Cao Hao Wang Ming Zhang Yunmeng Pu Yucheng Gao Yuanwei Zhang Panpan Lu Gaojun Teng Qianqian Wang Yunfeng Rui Department of Orthopaedics Zhongda HospitalSchool of MedicineSoutheast UniversityNanjingJiangsuPeople’s Republic of China School of Medicine Southeast UniversityNanjing 210009People’s Republic of China Orthopaedic Trauma Institute(OTI) Southeast UniversityNanjing 210009People’s Republic of China Jiangsu Key laboratory for Design and Manufacture of Micro‑Nano Biomedical Instruments School of Mechanical EngineeringSoutheast UniversityNanjing 210009People’s Republic of China Center of interventional radiology and Vascular Surgery Department of RadiologyZhongda HospitalSchool of MedicineSoutheast UniversityNanjing 210009People’s Republic of China

Disorders of the musculoskeletal system are the major contributors to the global burden of disease and current treatments show limited *** often suffer chronic pain and might eventually have to undergo end-stage ***,future treatments should focus on early detection and intervention of regional *** have been gradually used in organisms due to their advantages of intelligent,precise and minimally invasive targeted *** the combination of control and imaging systems,microrobots with good biosafety can be delivered to the desired area for *** the musculoskeletal system,microrobots are mainly utilized to transport stem cells/drugs or to remove hazardous substances from the *** to traditional biomaterial and tissue engineering strategies,active motion improves the efficiency and penetration of local targeting of cells/*** review discusses the frontier applications of microrobotic systems in different tissues of the musculoskeletal *** summarize the challenges and barriers that hinder clinical translation by evaluating the characteristics of different microrobots and finally point out the future direction of microrobots in the musculoskeletal system.

关键词： Microrobot Musculoskeletal system Targeted delivery Microrobotic systems Magnetic actuation

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Exploiting neonatal host–bifidobacteria interactions to promote intestinal pathogen tolerance and barrier function: Bifidobacteriumlongum subsp. infantis outperforms Bifidobacteriumadolescentis in anti-Salmonella activity and maintenance of intestinal hom

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Food Science and Human Wellness 2024年

作者： Chunxiu Lin Shunhe Wang Min Guo Wentian Li Jiayin Qiu Yonghua Zhou Hao Zhang Wei Chen Gang Wang Key laboratory of National Health Commission on Parasitic Disease Control and Prevention Jiangsu Provincial Key laboratory on Parasite and Vector Control Technology Jiangsu Institute of Parasitic Diseases State Key laboratory of Food Science andResources Jiangnan University Wuxi translational Medicine research Center and Jiangsu translational Medicine research Institute Wuxi Branch (Yangzhou) Institute of Food Biotechnology Jiangnan University National Engineering research Center for Functional Food Jiangnan University School of Food Science and Technology Jiangnan University

Bifidobacteriumlongumsubsp. infantis (***. infantis) and Bifidobacteriumadolescentis(B. adolescentis) play important roles in the guts of infants and adolescents， respectively. In this study， using a neonatal rat model， we compared the protective effects of these two bifidobacterial species against Salmonella infection. The results demonstrated that ***. infantis was more effective than B. adolescentis in alleviating the severity of infection in newborn rats exposed to Salmonella entericaserovarTyphimurium strain SL1344. B. *** attenuated intestinal inflammation and mucosal damage induced by Salmonella infection， as well as protecting intestinal nerves and intestinal barrier function through TLR4/MyD88 signalling. B. longumsubsp. infantis also displayed the potential to modulate gut metabolites by promoting the biosynthesis of unsaturated fatty acids (arachidonic acid， eicosapentaenoic acid and α-linolenic acid) and purine metabolism (guanine， adenine， inosine and adenosine)， thereby regulating metabolic disturbances. Additionally， the benefits of B. *** were also observed in the liver， spleen and brain， improving nerve reflexes and suppressing hepatosplenomegaly. Overall， these findings provide novel insights into the prevention and treatment of gut-related diseases in newborns， highlighting the potentially significant role of B. *** in clinical applications.

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Spatial transcriptomics:recent developments and insights in respiratory research

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Military Medical research 2024年第3期11卷 430-448页

作者： Wen-Jia Wang Liu-Xi Chu Li-Yong He Ming-Jing Zhang Kai-Tong Dang Chen Gao Qin-Yu Ge Zhou-Guang Wang Xiang-Wei Zhao State Key laboratory of Bioelectronics School of Biological Science and Medical EngineeringSoutheast UniversityNanjing 210096China Oujiang laboratory(Zhejiang Lab for Regenerative Medicine Vision and Brain Health)School of Pharmaceutical SciencesWenzhou Medical UniversityWenzhou 325035ZhejiangChina Orthopaedic Bioengineering research Group Division of Surgery and Interventional ScienceUniversity College LondonLondon HA74LPUK

The respiratory system's complex cellular heterogeneity presents unique challenges to researchers in this *** bulk RNA sequencing and single-cell RNA sequencing(scRNA-seq)have provided insights into cell types and heterogeneity in the respiratory system,the relevant specific spatial localization and cellular interactions have not been clearly *** transcriptomics(ST)has filled this gap and has been widely used in respiratory *** review focuses on the latest iterative technology of ST in recent years,summarizing how ST can be applied to the physiological and pathological processes of the respiratory system,with emphasis on the ***,the current challenges and potential development directions are proposed,including high-throughput full-length transcriptome,integration of multi-omics,temporal and spatial omics,bioinformatics analysis,*** viewpoints are expected to advance the study of systematic mechanisms,including respiratory studies.

关键词： Spatial transcriptomics Lung Tumor Spatial multi-omics

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Supercritical fluid technology:A game-changer for biomacromolecular nanomedicine preparation and biomedical application

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Chinese Chemical Letters 2024年第7期35卷 89-99页

作者： Yating Zheng Yulan Huang Jing Luo Xuqi Peng Xiran Gui Gang Liu Yang Zhang State Key laboratory of Vaccines for Infectious Diseases Xiang An Biomedicine LaboratoryNational Innovation Platform for Industry-Education Integration in Vaccine ResearchState Key Laboratory of Molecular Vaccinology and Molecular DiagnosticsCenter for Molecular Imaging and Translational MedicineSchool of Public HealthXiamen UniversityXiamen 361102China Shen Zhen research Institute of Xiamen University Shenzhen 518057China Division of Urology and Department of Surgery Brigham and Women's HospitalHarvard Medical SchoolBostonMA 02115United States Innovation laboratory for Sciences and Technologies of Energy Materials of Fujian Province(IKKEM) Xiamen 361102China

Biomacromolecules are attractive in biomedical applications as therapeutic agents and potential drug carriers due to their natural active components,good biocompatibility,and high ***,their large relative molecular weight,complex structure,susceptibility to degradation,and poor stability limit their *** can address these issues by improving the therapeutic value,bioavailability,permeability,and absorption of biomacromolecules while regulating their retention time in the ***,compelling evidence has been reported that supercritical fluid(SCF)technology has emerged as an alternative that maintains the integrity of biomacromolecules and reduces environmental *** this review,we highlight a set of unique nanosizing strategies based on SCF technology for biomacromolecular nanomedicine,and extensively discuss their characteristics and *** particular,the protein-based,nucleic acid-based,and polysaccharide-based nanomedicine preparations via SCF technology and their biomedical applications are summarized,and the potential for industrial production of biomacromolecular drugs is also *** further provide perspectives on the opportunities and challenges in this excellent field of biomacromolecular drugs nanotechnology.

关键词： Biomacromolecules Supercritical fluid technology Therapeutic proteins Gene therapy Nanomedicine

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Deep simulated annealing for the discovery of novel dental anesthetics with local anesthesia and anti-inflammatory properties

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Acta Pharmaceutica Sinica B 2024年第7期14卷 3086-3109页

作者： Yihang Hao Haofan Wang Xianggen Liu Wenrui Gai Shilong Hu Wencheng Liu Zhuang Miao Yu Gan Xianghua Yu Rongjia Shi Yongzhen Tan Ting Kang Ao Hai Yi Zhao Yihang Fu Yaling Tang Ling Ye Jin Liu Xinhua Liang Bowen Ke State Key laboratory of Oral Diseases and National Clinical research Center for Oral Diseases West China Hospital of StomatologySichuan UniversityChengdu 610041China College of Computer Science Sichuan UniversityChengdu 610065China Department of Anesthesiology Laboratory of Anesthesia and Critical Care MedicineNational-Local Joint Engineering Research Centre of Translational Medicine of AnesthesiologyFrontiers Science Center for Disease-Related Molecular NetworkWest China HospitalSichuan UniversityChengdu 610041China

Multifunctional therapeutics have emerged as a solution to the constraints imposed by drugs with singular or insufficient therapeutic *** primary challenge is to integrate diverse pharmacophores within a single-molecule *** address this,we introduced DeepSA,a novel edit-based generative framework that utilizes deep simulated annealing for the modification of articaine,a wellknown local *** integrates deep neural networks into metaheuristics,effectively constraining molecular space during compound *** framework employs a sophisticated objective function that accounts for scaffold preservation,anti-inflammatory properties,and covalent *** a sequence of local editing to navigate the molecular space,DeepSA successfully identified AT-17,a derivative exhibiting potent analgesic properties and significant anti-inflammatory activity in various animal *** insights into AT-17 revealed its dual mode of action:selective inhibition of NaV1.7 and 1.8 channels,contributing to its prolonged local anesthetic effects,and suppression of inflammatory mediators via modulation of the NLRP3 inflammasome *** findings not only highlight the efficacy of AT-17 as a multifunctional drug candidate but also highlight the potential of DeepSA in facilitating AI-enhanced drug discovery,particularly within stringent chemical constraints.

关键词： Multifunctional drugs Deep simulated annealing Molecule generation Articaine derivatives AI-enhanced drug discovery

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Nε-carboxymethyl-lysine and inflammatory cytokines,markers and mediators of coronary artery disease progression in diabetes

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World Journal of Diabetes 2024年第4期15卷 575-578页

作者： Sonia Eiras translational Cardiology Health Research InstituteUniversity Hospital of Santiago de CompostelaSantiago de Compostela 15706Spain

This editorial refers to the article“Comparative analysis of Nε-carboxymethyllysine and inflammatory markers in diabetic and non-diabetic coronary artery disease patients”,published in the recent issue of the World Journal of Diabetes 2023 is based on glucose metabolism,advanced glycation end products(AGEs),inflammation and adiposity on diabetes and coronary artery disease(CAD).This study has included CAD patients who were stratified according to glycosylated hemoglobin higher than 6.5 and sex-matched.A higher prevalence of hypertension,dyslipidemia,and non-vegetarian diet were found in the diabetic *** risk factors might influence body weight and adiposity and explain the increment of the left *** this data was not supported by the *** diet can also explain the non-enzymatic reactions on lipids,proteins,or nucleic acids and consequently an increment of *** molecules can emit ***,one of the non-fluorescent and most abundant AGEs is Nε-carboxymethyl-lysine(CML).Its association with coronary artery stenosis and severity in the diabetic group might suggest its role as a player in CAD ***,CML,after binding with its receptor(RAGE),can induce calcification cascade through reactive oxygen species and mitogen-activated protein ***,this interaction AGE-RAGE can cause activation of the transcription nuclear factor-kb and induce inflammatory *** might explain the relationship between CML and pro-inflammatory cytokines in diabetic and CAD *** this is a population from one center,the determination of CML and inflammatory cytokines might improve the diagnosis of severe and progressive *** and comparative studies among glycosylated hemoglobin,CML,and other AGE levels according to diagnosis and prognosis value might modify the clinical *** these molecules are irreversible,they can act through a specific receptor inducing a signal transduction that might be modulate

关键词： Nε-carboxymethyl-lysine Inflammatory cytokines Adiposity Diabetes Coronary artery disease

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Insights into the Impact of Bifidobacterium bifidum， B. breve， and B. longum on the Immune Response Against Salmonella Infection in Neonatal Rats

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Food Science and Human Wellness 2024年

作者： Chunxiu Lin Yugui Lin Min Guo Rui Xiao Shunhe Wang Yonghua Zhou Jianxin Zhao Hao Zhang Wei Chen Gang Wang State Key laboratory of Food Science and Resources Jiangnan University School of Food Science and Technology Jiangnan University Microbiology laboratory Zhongshan Bo'ai Hospital Southern Medical University Key laboratory of National Health Commission on Parasitic Disease Control and Prevention Jiangsu Provincial Key laboratory on Parasite and Vector Control Technology Jiangsu Institute of Parasitic Diseases National Engineering research Center for Functional Food Jiangnan University (Yangzhou) Institute of Food Biotechnology Jiangnan University Wuxi translational Medicine research Center and Jiangsu translational Medicine research Institute Wuxi Branch

Infants exhibit diminished susceptibility to external infections， a phenomenon closely linked to the pervasive presence of the bifidobacterial community within their intestinal tract. Nonetheless， a significant knowledge gap remains concerning the distinct species of bifidobacteria initiating anti-infection immune responses during the early developmental stages. In this study， the impact of early intervention with Bifidobacterium bifidum (B. bifidum)， B. breve， and B. longum on neonatal rats infected with Salmonella enterica serovar Typhimurium (S. typhimurium) SL1344 were compared. The study encompasses various immunity levels， including gut immunity， central immunity (thymus)， peripheral immunity (spleen)， and brain immunity. Following Salmonella infection， significant alterations in neonatal rats were observed in growth and developmental levels， immune markers， cytokine levels， balance of T lymphocyte subpopulations， intestinal barrier function， and blood-brain barrier integrity. Compared with B. breve and B. longum， B. bifidum demonstrated more pronounced efficacy in regulating these physiological processes. By conducting multi-level analyses of gut microbiota， bifidobacterial community， colonic content metabolomics， and serum metabolomics， the significance of B. bifidum's role is underscored， and the immune-enhancing function of messenger metabolites is unveiled. Among these metabolites， γ-L-Glutamyl-L-glutamic acid and Orotic acid were found to be shared by all three species， while Hippuric acid and 1a，1b-dihomo Prostaglandin F2α were unique to B. bifidum， and DL-Arginine was specific to B. longum. Overall， this study has provided novel insights into the intervention and immunomodulation by Bifidobacterium in early-life infections， emphasizing the significant role of B. bifidum.

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Immune rebalancing at the maternal-fetal interface of maternal SARS-CoV-2 infection during early pregnancy

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Protein & Cell 2024年第6期15卷 460-473页

作者： Chenxiang Xi Zihui Yan Dandan Bai Yalin Zhang Beiying Wang Xiaoxiao Han Li Wu Xiaohui Shi Zhiyi Hu Ming Tang Zhongqu Su Yingdong Liu Binya Liu Jiqing Yin Hong Wang Xiaocui Li Yanping Zhang Shaorong Gao Wenqiang Liu Shanghai Key laboratory of Maternal Fetal Medicine Clinical and Translational Research Center of Shanghai First Maternity and Infant HospitalShanghai Institute of Maternal-Fetal Medicine and Gynecologic OncologyFrontier Science Center for Stem Cell ResearchSchool of Life Sciences and TechnologyTongji UniversityShanghai 200092China Jiaxing Maternity and Child Health Care Hospital Jiaxing 314050China

The current coronavirus disease 2019(COVID-19)pandemic caused by severe acute respiratory syndrome coronavirus(SARS-CoV-2)remains a threat to pregnant ***,the impact of early pregnancy SARS-CoV-2 infection on the maternal-fetal interface remains poorly ***,we present a comprehensive analysis of single-cell transcriptomics and metabolomics in placental samples infected with SARS-CoV-2 during early *** to control placentas,SARS-CoV-2 infection elicited immune responses at the maternal-fetal interface and induced metabolic alterations in amino acid and phospholipid profiles during the initial weeks ***,subsequent immune cell activation and heightened immune tolerance in trophoblast cells established a novel dynamic equilibrium that mitigated the impact on the maternal-fetal ***,the immune response and metabolic alterations at the maternal-fetal interface exhibited a gradual decline during the second *** study underscores the adaptive immune tolerance mechanisms and establishment of immunological balance during the first two trimesters following maternal SARS-CoV-2 infection.

关键词： fetal alterations pregnancy

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Rapid and sensitive detection of Epstein-Barr virus antibodies in nasopharyngeal carcinoma by chemiluminescence strips based on iron-porphyrin single atom nanozyme

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Nano research 2024年第3期17卷 1827-1836页

作者： Daji Wang Jie Wang Dan Liu Jiuyang He Meiying Wang Haibing Huang Guohui Nie Hui Ding Xiyun Yan Nanozyme Synthesis Center Shenzhen Institute of Synthetic BiologyShenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhen 518055China Center for Drug Evaluation National Medical Products AdministrationBeijing 100022China Shenzhen Key laboratory of nanozymes and translational Cancer research Department of Otolaryngologyand Shenzhen Institute of Translational MedicineShenzhen Second People’s Hospital/the First Affiliated Hospital of Shenzhen University Health Science CenterShenzhen 518035China CAS Engineering laboratory for Nanozyme Key Laboratory of Protein and Peptide PharmaceuticalInstitute of BiophysicsChinese Academy of SciencesBeijing 100101China Department of Rheumatology and Immunology Shenzhen Second People’s HospitalThe First Affiliated Hospital of Shenzhen UniversityShenzhen 518055China

The correlation between Epstein-Barr virus(EBV)infection and nasopharyngeal carcinoma(NPC)risk has been extensively *** continual monitoring of EBV-IgAs provides a promising approach of NPC screening in its early *** this study,we successfully synthesized a single-atom nanozyme(SANzyme)through the application of iron-porphyrin based metal organic framework(MOF-FeP).The MOF-FeP possesses precisely-defined electronic and geometric structures that accurately mimic highly-evolved catalytic site of natural *** peroxidase-like activity of MOF-FeP enables it to catalyze the chemiluminescence of luminol *** integrating MOF-FeP into a traditional strip,we created a rapid and highly-sensitive evaluation tool for detecting ***,the MOF-FeP strip enables the simultaneous detection of three EBV-IgAs,greatly improving the accuracy of EBV-associated NPC *** sensitivities of the MOF-FeP strip(75.56%–93.30%)surpass those of current enzyme-linked immunosorbent assay(ELISA)methods(64.44%–82.22%).This test takes only 16 min to perform as opposed to the customary 1–2 h required for standard ***,the MOF-FeP strip is suitable for whole blood samples,thereby significantly simplifying the sample preparation and detection *** conclusion,the MOF-FeP strip combines the simplicity of traditional strip with the high catalytic activity of *** innovative MOF-FeP strip offers a new point-of-care strategy for EBV-IgAs detection,which is expected to markedly facilitate early screening for EBV-associated diseases.

关键词： iron-porphyrin single-atom nanozyme(SANzyme) chemiluminescence strips Epstein-Barr virus(EBV) nasopharyngeal carcinoma(NPC) antibody detection

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