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Cellular & Molecular Immunology 2023年第3期20卷 305-307页

作者： jan Novak Matthew B.Renfrow R.Glenn King Colin Reily todd j.green Department of Microbiology University of Alabama at BirminghamBirminghamALUSA Department of Biochemistry and Molecular Genetics University of Alabama at BirminghamBirminghamALUSA

Human adaptive immunity involves the production and secretion of antibodies by differentiated B cells(ie.,antibody-secreting cells,also called plasma cells)in response to *** secreted antigen-specific antibodies are immunoglobulins that are present at substantial concentrations in blood,mucosal secretions,and breast ***,human immunoglobulins consist of two identical heavy(H)chains and two identical light(L)chains that are connected by disulfide bridges to form a homodimer of heterodimers(ie.,H+Ll2).Each heterodimer consists of one H chain linked with one L chain,whereas the homodimer is formed by linking two H chains *** genes for both the L and H chains are encoded by ligated gene segments that are genetically rearranged during V(D)j recombination,a process that endows each B cell with a unique receptor,giving rise to the enormous diversity of the B-cell antigen receptor repertoire.

关键词： IgA1 immunity chains

Structure of a negative strand RNA virus nucieocapsid in complex with the nucleocapsid-binding domain of the small polymerase cofactor,P

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Structure of a negative strand RNA virus nucieocapsid in com...

Author Correction:Protein-based profiling of the human IgA1 clonal repertoire revealed shared clones of serum polymeric IgA1 and milk secretory IgA1

21st IUBMB and 12th FAOBMB International Congress of Biochemistry and Molecular Biology

作者： todd j.green Ming Luo Department of Microbiology University of Alabama at Birmingham

＜正＞Negative strand RNA viruses（NSRVs） require that their genomic RNAs be encapsidated by the viral nucleocapsid protein throughout the entire replication *** nucleocapsid structure in turn serves as the active template for the processes of transcription and *** non-segmented NSRVs, these processes of polynucleotide synthesis are carried out by their own viral

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Cellular & Molecular Immunology 2023年第3期20卷 310-310页

作者： jan Novak Matthew B.Renfrow R.Glenn King Colin Reily todd j.green Department of Microbiology University of Alabama at Birmingham Birmingham AL USA Department of Medicine University of Alabama at Birmingham Birmingham AL USA Department of Biochemistry and Molecular Genetics University of Alabama at Birmingham Birmingham AL USA

In the sentence beginning"H chain genes are assembled from one functional variable(B),one diversity(D),and.."in this article,the text should have read"H chain genes are assembled from one functional variable(M),one di... 详细信息

关键词： IgA1 secretory serum

SARS-CoV-2 triggers Dickkopf-1(Dkk-1)modulation of T helper cells and lung pathology in mice

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Genes & Diseases 2024年第4期11卷 9-12页

作者： Yifan Wu Freedom M.green Stephen A.Shaw Lauren j.Bonilla Shannon E.Ronca Maria Elena Bottazzi Farrah Kheradmand jill E.Weatherhead Department of Pathology&Immunology One Baylor PlazaHoustonTX 77030USA Department of Pediatrics One Baylor PlazaHoustonTX 77030USA Department of Medicine One Baylor PlazaHoustonTX 77030USA National School of Tropical Medicine One Baylor PlazaHoustonTX 77030USA Molecular Virology&Microbiology One Baylor PlazaHoustonTX77030USA Biologyof Inflammation Center Baylor College of MedicineOne BaylorPlazaHoustonTX77030USA Michael E.DeBakey VA Center for Translational Research on Inflammatory Diseases HoustonTX 77030USA

Severe acute respiratory syndrome coronavirus 2(SARSCov-2)is the etiologic agent of the coronavirus disease 19(COVID-19)*** viral infections like SARS-CoV-2,a robust anti-viral type 1 immune response,including upregulation of type 1 CD4+T helper cells(Th1),is required for effective viral clearance while minimizing end-organ pathology and collateral tissue damage.

关键词： pathology acute respiratory

A unique subseafloor microbiosphere in the Mariana Trench driven by episodic sedimentation

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Marine Life Science & Technology 2024年第1期6卷 168-181页

作者： jiwen Liu Da-Wei Li Xinxin He Ronghua Liu Haojin Cheng Chenglong Su Mengna Chen Yonghong Wang Zhongsheng Zhao Hanyue Xu Zhangyu Cheng Zicheng Wang Nikolai Pedentchouk David j.Lea-Smith jonathan D.todd Xiaoshou Liu Meixun Zhao Xiao-Hua Zhang Frontiers Science Center for Deep Ocean Multispheres and Earth System and College of Marine Life SciencesOcean University of ChinaQingdao 266003China Laboratory for Marine Ecology and Environmental Science Laoshan LaboratoryQingdao 266237China Institute of Evolution and Marine Biodiversity Ocean University of ChinaQingdao 266003China Key Laboratory of Marine Chemistry Theory and Technology Ministry of EducationOcean University of ChinaQingdao 266100China Key Lab of Submarine Geosciences and Prospecting Techniques Ministry of Education/College of Marine GeosciencesOcean University of ChinaQingdao 266100China Key Laboratory of Physical Oceanography Ministry of Education/Research Vessel CentreOcean University of ChinaQingdao 266100China School of Environmental Sciences University of East AngliaNorwich NR47TJUK School of Biological Sciences University of East AngliaNorwich NR47TJUK

Hadal trenches are characterized by enhanced and infrequent high-rate episodic sedimentation events that likely introduce not only labile organic carbon and key nutrients but also new microbes that significantly alter the subseafloor ***,the role of high-rate episodic sedimentation in controlling the composition of the hadal subseafloor microbiosphere is ***,analyses of carbon isotope composition in a~750 cm long sediment core from the Challenger Deep revealed noncontinuous deposition,with anomalous ^(14)C ages likely caused by seismically driven mass transport and the funneling effect of trench *** community composition and diverse enzyme activities in the upper~27 cm differed from those at lower depths,probably due to sudden sediment deposition and differences in redox condition and organic matter *** lower depths,microbial population numbers,and composition remained relatively constant,except at some discrete depths with altered enzyme activity and microbial phyla abundance,possibly due to additional sudden sedimentation events of different *** is provided of a unique role for high-rate episodic sedimentation events in controlling the subsurface microbiosphere in Earth’s deepest ocean floor and highlight the need to perform thorough analysis over a large depth range to characterize hadal benthic *** depositional processes are likely crucial in shaping deep-water geochemical environments and thereby the deep subseafloor biosphere.

关键词： Hadal subseafloor Deep water sediment Mariana Trench Radiocarbon Microbial community Redox potential

Macroalgal deep genomics illuminate multiple paths to aquatic,photosynthetic multicellularity

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Molecular Plant 2024年第5期17卷 747-771页

作者： David R.Nelson Alexandra Mystikou Ashish jaiswal Cecilia Rad-Menendez Michael j.Preston Frederik De Boever Diana C.El Assal Sarah Daakour Michael W.Lomas jean-Claude Twizere David H.green William C.Ratcliff Kourosh Salehi-Ashtiani Division of Science and Math New York University Abu DhabiAbu DhabiUAE Center for Genomics and Systems Biology(CGSB) New York University Abu DhabiAbu DhabiUAE Biotechnology Research Center Technology Innovation InstitutePO Box 9639Masdar CityAbu DhabiUAE Culture Collection of Algae and Protozoa Scottish Association for Marine ScienceObanScotlandUK National Center for Marine Algae and Microbiota Bigelow Laboratory for Ocean SciencesEast BoothbayMEUSA Laboratory of Viral Interactomes GIGA InstituteUniversity of LiegeLiegeBelgium School of Biological Sciences Georgia Institute of TechnologyAtlantaGAUSA

Macroalgae are multicellular,aquatic autotrophs that play vital roles in global climate maintenance and have diverse applications in biotechnology and eco-engineering,which are directly linked to their multicellularity ***,their genomic diversity and the evolutionary mechanisms underlying multicellularity in these organisms remain *** this study,we sequenced 110 macroalgal genomes from diverse climates and phyla,and identified key genomic features that distinguish them from their microalgal *** for cell adhesion,extracellular matrix formation,cell polarity,transport,and cell differentiation distinguish macroalgae from microalgae across all three major phyla,constituting conserved and unique gene sets supporting multicellular *** genes show phylum-and climate-specific expansions that may facilitate niche ***,our study reveals genetic determinants of convergent and divergent evolutionary trajectories that have shaped morphological diversity in macroalgae and provides genome-wide frameworks to understand photosynthetic multicellular evolution in aquatic environments.

关键词： macroalgae multicellularity comparative genomics evolution adhesome endogenous viral elements

Physiological strategies of moult-migrating Black-necked Grebes(Podiceps nigricollis)in a polluted staging site according to blood chemistry

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Avian Research 2023年第3期14卷 453-459页

作者： juan A.Amat Nico Varo Marta I.Sanchez Andy j.green Damaso Hornero-Mendez juan Garrido-Fernandez Cristina Ramo Departamento de Ecología y Evolucion Estacion Biologica de Donana(EBD-CSIC)41092SevillaSpain Independent researcher 41010SevillaSpain Departamento de Biología de la Conservacion y Cambio Global Estacion Biologica de Donana(EBD-CSIC)41092SevillaSpain Departamento de Fitoquímica de Alimentos Instituto de la Grasa(IG-CSIC)41013SevillaSpain

After breeding,Black-necked Grebes(Podiceps nigricollis)perform a moult-migration to autumn hypersaline staging sites,where they moult the flight feathers and forage on superabundant brine shrimp(Artemia spp.)before leaving for wintering *** the stay in moulting sites,the grebes experience changes in organs and muscle size(atrophy,hypertrophy),and almost double their body mass,which has been suggested to act as an insurance against a collapse in prey availability in late *** two years we collected blood samples from hundreds of individuals at one of the most important European moulting sites(the Odiel marshes,SW Spain),which is a highly polluted area due to mining drainage and chemical *** assessed the potential effect of moulting stage,day of the year and body condition on 16 blood biochemical *** of the changes in prey availability and body composition of grebes,we expected some physiological adjustments during *** levels of cholesterol suggested that birds in active moult increased foraging effort to face the costs of *** was increased amount of lactate dehydrogenase,corresponding to periods of breast muscle *** in active moult augmented protein ingestion,likely to account for the requirements of feather *** also show that the probability of fasting due to low prey availability increased late in the moulting season,as demonstrated by an increase in plasmaβ-hydroxy-butyrate.

关键词： Blood biochemistry Eared grebe Fasting Feather replacement Odiel marshes Waterbird

Predicting an Athlete’s Physiological and Haematological Response to Live High-Train High Altitude Training Using a Hypoxic Sensitivity Test

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journal of Science in Sport and Exercise 2022年第4期4卷 371-385页

作者： Gareth Turner Kate L.Spilsbury David j.green Barry W.Fudge jamie S.M.Pringle Alan j.Richardson Neil S.Maxwell Environmental Extreme Laboratory University of BrightonEastbourneUK English Institute of Sport Bisham AbbeyUK Queensland Academy of Sport BrisbaneAustralia English Institute of Sport LoughboroughUK Aspire Academy DohaQatar University of Birmingham BirminghamUK

Purpose Elite endurance runners frequently utilise live high-train high(LHTH)altitude training to improve endurance per-formance at sea level(SL).Individual variability in response to the hypoxic exposure have resulted in contradictory *** the present case study,changes in total haemoglobin mass(tHbmass)and physiological capacity,in response to 4-weeks of LHTH were *** tested if a hypoxic sensitivity test(HST)could predict altitude-induced adaptations to *** Fifteen elite athletes were selected to complete 4-weeks of LHTH(~2400 m).Athletes visited the laboratory for preliminary testing(PRE),to determine lactate threshold(LT),lactate turn point(LTP),maximal oxygen uptake VO_(2max)and *** LHTH,athletes completed daily physiological measures[arterial oxygen saturation(SpO2)and body mass]and subjective wellbeing *** was repeated,for those who completed the full camp,post-LHTH(POST).Additionally,athletes completed the HST prior to *** A difference(Pjury or *** HST did however,estimate changes in tHbmass and VO_(2max).HST prior to LHTH could allow coaches and practitioners to better inform the acclimatisation strategies and train-ing load application of endurance runners at altitude.

关键词： Altitude training Runners Endurance Haemoglobin mass Performance Hypoxic sensitivity

Universal insertion of molecules in ionic compounds under pressure

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National Science Review 2024年第1期11卷 120-128页

作者： Feng Peng Yanming Ma Chris j.Pickard Hanyu Liu Maosheng Miao College of Physics and Electronic Information Luoyang Normal University Department of Chemistry and Biochemistry California State University Northridge State Key Laboratory of Superhard Materials & Key Laboratory of Material Simulation Methods and Software of Ministry of Education College of Physics Jilin University International Center of Future Science Jilin University Department of Materials Science & Metallurgy University of Cambridge Advanced Institute for Materials Research Tohoku University Department of Earth Science University of California Santa Barbara

Using first-principles calculations and crystal structure search methods, we found that many covalently bonded molecules such as H2, N2, CO2, NH3, H2O and CH4may react with NaC l, a prototype ionic solid,and form stable compounds under pressure while retaining their molecular structure. These molecules,despite whether they are homonuclear or heteronuclear, polar or non-polar, small or large, do not show strong chemical interactions with surrounding Na and Cl ions. In contrast, the most stable molecule among all examples, N2, is found to transform into cyclo-N5-anions while reacting with NaC l under high pressures. It provides a new route to synthesize pentazolates, which are promising green energy materials with high energy density. Our work demonstrates a unique and universal hybridization propensity of covalently bonded molecules and solid compounds under pressure. This surprising miscibility suggests possible mixing regions between the molecular and rock layers in the interiors of large planets.

关键词： molecule-solid hybrid materials high-pressure crystal structure prediction density functional theory planet interior

Microchip imaging cytometer:making healthcare available,accessible,and affordable

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Opto-Electronic Advances 2022年第11期5卷 1-15页

作者： Xilong Yuan todd Darcie Ziyin Wei j Stewart Aitchison Department of Electrical and Computer Engineering University of TorontoTorontoONM5S 3G4Canada

The Microchip Imaging Cytometer(MIC)is a class of integrated point-of-care detection systems based on the combination of optical microscopy and flow *** devices have the attributes of portability,cost-effectiveness,and adaptability while providing quantitative measurements to meet the needs of laboratory testing in a variety of healthcare *** on the use of microfluidic chips,MIC requires less sample and can complete sample preparation ***,they can provide quantitative testing results simply using a finger prick *** decreased reagent consumption and reduced form factor also help improve the accessibility and affordability of healthcare services in remote and resource-limited *** this article,we review recent developments of the Microchip Imaging Cytometer from the following aspects:clinical applications,microfluidic chip integration,imaging optics,and image ***,we provide an outlook of the field and remark on promising technologies that may enable significant progress in the near future.

关键词： microchip microfluidics flow cytometer imaging cytometer biosensors point-of-care testing biomedical engineering