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Journal of Animal Science and Biotechnology 2024年第2期15卷 812-825页

作者： A-Rang Son Seon-Ho Kim Mahfuzul Islam Michelle Miguel Ye Pyae Naing Sang-Suk Lee Ruminant Nutrition and Anaerobe Laboratory Department of Animal Science and TechnologySunchon National UniversitySuncheon 57922Korea department of microbiology and Parasitology Sher-e-Bangla Agricultural UniversityDhaka 1207Bangladesh

Background This study investigated the effects of inorganic and organic minerals on physiological responses,oxidative stress reduction,and rumen microbiota in Holstein bull calves(123.81±9.76 kg;5 months old)during short-term heat stress(HS)and recovery *** Holstein calves were randomly assigned to four treatment groups:no mineral supplementation(Con),inorganic minerals(im),organic minerals(OM),and high-concentration organic minerals(HOM)and two thermal environments(HS and recovery)using 4×2 factorial arrangement in a crossover design of four periods of 35 *** were maintained in a temperature-controlled *** experimental period consisted of 14 d of HS,14 d of recovery condititon,and a 7-d washing *** Body temperature and respiration rate were higher in HS than in the recovery conditions(P0.05).The principal coordinate analysis represented that the overall rumen microbiota was not influenced by mineral supplementation;however,temperature-induced microbial structure shifts were indicated(PERMANOVA:P<0.05).At the phylum level,Firmicutes and Actinobacteria decreased,whereas Fibrobacteres,Spirochaetes,and Tenericutes increased(P<0.05),under HS *** genus Treponema increased under HS conditions,while Christensenella was higher in recovery conditions(P<0.05).Conc

关键词： Antioxidant status Heat stress Holstein bull calves Organic mineral supplementation Oxidative stress

Electrobiocorrosion by microbes without outer-surface cytochromes

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mLife 2024年第1期3卷 110-118页

作者： Dawn E.Holmes Trevor L.Woodard Jessica A.Smith Florin Musat Derek R.Lovley department of microbiology University of Massachusetts AmherstAmherstMassachusettsUSA department of Physical and Biological Science Western New England UniversitySpringfieldMassachusettsUSA department of Biomolecular Sciences Central Connecticut State UniversityNew BritainConnecticutUSA department of Biology Section for MicrobiologyAarhus UniversityAarhusDenmark department of Molecular Biology and Biotechnology Facuity of Biology and GeologyBabes-Bolyai UniversityCluj-NapocaRomania

Anaerobic microbial corrosion of iron-containing metals causes extensive economic *** microbes are capable of direct metal-to-microbe electron transfer(electrobiocorrosion),but the prevalence of electrobiocorrosion among diverse methanogens and acetogens is poorly understood because of a lack of tools for their genetic *** studies have suggested that respiration with 316L stainless steel as the electron donor is indicative of electrobiocorrosion,because,unlike pure Fe^(0),316L stainless steel does not abiotically generate H_(2) as an intermediary electron ***,we report that all of the methanogens(Methanosarcina vacuolata,Methanothrix soehngenii,and Methanobacterium strain im1)and acetogens(Sporomusa ovata and Clostridium ljungdahli)evaluated respired with pure Fe^(0)as the electron donor,but only ***,***,and *** were capable of stainless steel *** electrobiocorrosive methanogens re-quired acetate as an additional energy source in order to produce methane from stainless *** of *** and *** demonstrated how acetogens can provide acetate to methanogens during *** only was Meth-anobacterium strain im1 not capable of electrobiocorrosion,but it also did not accept electrons from Geobacter metal-lireducens,an effective electron-donating partner for direct interspecies electron transfer to all methanogens that can directly accept electrons from Fe^(0).The finding that ***,***,and *** are capable of electrobiocorrosion,despite a lack of the outer-surface c-type cytochromes previously found to be important in other electrobiocorrosive microbes,demonstrates that there are multiple microbial strategies for making electrical contact with Fe^(0).

关键词： acetogen corrosion Fe^(0) methanogen stainless steel

Possible therapeutic role of Ig E blockade in irritable bowel syndrome

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World Journal of Gastroenterology 2016年第43期22卷 9451-9456页

作者： Eli Magen Tinatin Chikovani Medicine C department Allergy and Clinical Immunology Unit Barzilai Medical Center Ben Gurion University of Negev department of microbiology and im-munology Tbilisi State Medical University

Omalizumab is a humanized monoclonal antibody that binds to the high-affinity type-I Ig E Fc receptors on mast cells(MCs) and basophils, inhibiting the Ig E immune pathway. Irritable bowel syndrome(IBS) is the most common functional gastrointestinal disorder, and dysregulation of the immune system likely contributes to its etiology and/or symptomatology. Colonic biopsies from patients with IBS demonstrate considerable increase in the number of degranulating MCs releasing histamine in proximity to nerves, and this event may underlie the common IBS symptom of abdominal pain. Pharmacologic control of MC activation and mediator release is a current area of active interest in the field of IBS research. Recently, we and Pearson et al described 2 cases of patients with IBS with diarrhea(IBS-D) showing positive clinical response to omalizumab. In both cases, the female patients had severe, long-lasting IBS-D and achieved an almost complete resolution of IBS symptoms. Both patients were also able to discontinue all IBS medications after commencing the anti-Ig E therapy. For both patients, the omalizumab treatment showed a relatively rapid onset of action, resembling the efficacy observed in and previously reported for patients with chronic spontaneous urticaria. In this Editorial, we discuss the possible biological mechanisms that may underlie the clinical efficacy of omalizumab in IBS. We suggest that there is a need for a well-designed prospective study to investigate the therapeutic effects of anti-Ig E in IBS.

关键词： IgE Omalizumab Irritable bowel syndrome Anti-inflammatory Irritable bowel syndrome with diarrhea

Two distinct subpopulations of marginal zone B cells exhibit differential antibody-producing capacities and radioresistance

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Cellular & Molecular immunology 2024年第4期21卷 393-408页

作者： Sujin Lee Yeunjung Ko Hyun Woo Lee Won Joon Oh Hun Gi Hong Dinuka Ariyaratne Se Jin im Tae Jin Kim department of immunology Graduate School of Basic Medical ScienceSungkyunkwan University School of MedicineSuwon16419Republic of Korea department of immunology and Molecular Medicine Faculty of Medical SciencesUniversity of Sri JayewardenepuraNugegodaSri Lanka Present address:immunology and microbiology Graduate Program Baylor College of MedicineHoustonTX77030USA

Marginal zone(MZ)B cells,which are splenic innate-like B cells that rapidly secrete antibodies(Abs)against blood-borne pathogens,are composed of heterogeneous ***,we showed that MZ B cells can be divided into two distinct subpopulations according to their CD80 expression ***80^(high)MZ B cells exhibited greater Ab-producing,proliferative,and IL-10-secreting capacities than did CD80^(low)MZ B ***,CD80^(high)MZ B cells survived 2-Gy whole-body irradiation,whereas CD80^(low)MZ B cells were depleted by irradiation and then repleted with one month after *** of CD80^(low)MZ B cells led to accelerated development of type II collagen(CII)-induced arthritis upon immunization with bovine ***80^(high)MZ B cells exhibited higher expression of genes involved in proliferation,plasma cell differentiation,and the antioxidant ***80^(high)MZ B cells expressed more autoreactive B cell receptors(BCRs)that recognized double-stranded DNA or CII,expressed more immunoglobulin heavy chain sequences with shorter complementarity-determining region 3 sequences,and included more clonotypes with no N-nucleotides or with B-1a BCR sequences than CD80^(low)MZ B *** transfer experiments showed that CD21^(+)CD23^(+)transitional 2 MZ precursors preferentially generated CD80^(low)MZ B cells and that a proportion of CD80^(low)MZ B cells were converted into CD80^(high)MZ B cells;in contrast,CD80^(high)MZ B cells stably remained CD80^(high)MZ B *** summary,MZ B cells can be divided into two subpopulations according to their CD80 expression levels,Ab-producing capacity,radioresistance,and autoreactivity,and these findings may suggest a hierarchical composition of MZ B cells with differential stability and BCR specificity.

关键词： Marginal Zone B Cell CD80 Autoreactivity Radioresistance

Superior antibody and membrane protein‑specific T‑cell responses to CoronaVac by intradermal versus intramuscular routes in adolescents

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World Journal of Pediatrics 2024年第4期20卷 353-370页

作者： Jaime S.Rosa Duque Samuel M.S.Cheng Carolyn A.Cohen Daniel Leung Xiwei Wang Xiaofeng Mu Yuet Chung Tsun Ming Lau Manni Wang Wenyue Zhang Yanmei Zhang Howard H.W.Wong Leo C.H.Tsang Sara Chaothai Tsz Chun Kwan John K.C.Li Karl C.K.Chan Leo L.H.Luk Jenson C.H.Ho Wing Yan Li Amos M.T.Lee Jennifer H.Y.Lam Sau Man Chan Wilfred H.S.Wong Issan Y.S.Tam Masashi Mori Sophie A.Valkenburg Malik Peiris Wenwei Tu Yu Lung Lau department of Paediatrics and Adolescent Medicine The University of Hong KongHong KongChina School of Public Health The University of Hong KongHong KongChina HKU‑Pasteur Research Pole School of Public HealthThe University of Hong KongHong KongChina Research Institute for Bioresources and Biotechnology Ishikawa Prefectural UniversityNonoichiJapan department of microbiology and immunology Peter Doherty Institute for Infectionand ImmunityUniversity of MelbourneMelbourneVICAustralia Center for immunology and Infection C2i Hong KongChina

Background Optimising the immunogenicity of COVID-19 vaccines to improve their protection against disease is *** dosing by intradermal(ID)administration has been shown to be equally immunogenic as intramuscular(im)administration for several vaccines,but the immunogenicity of ID inactivated whole severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)at the full dose is *** study(NCT04800133)investigated the superiority of antibody and T-cell responses of full-dose CoronaVac by ID over im administration in *** Participants aged 11–17 years received two doses of im or ID vaccine,followed by the 3rd dose 13–42 days *** and cellular immunogenicity outcomes were measured post-dose 2(im-CC versus ID-CC)and post-dose 3(imCCC versus ID-CCC).Doses 2 and 3 were administered to 173 and 104 adolescents,*** Spike protein(S)immunoglobulin G(IgG),S-receptor-binding domain(RBD)IgG,S IgG Fcγreceptor IIIa(FcγRIIIa)-binding,SNM[sum of individual(S),nucleocapsid protein(N),and membrane protein(M)peptide pool]-specific interleukin-2(IL-2)+CD4^(+),SNM-specific IL-2^(+)CD8^(+),S-specific IL-2^(+)CD8^(+),N-specific IL-2^(+)CD4^(+),N-specific IL-2^(+)CD8^(+)and M-specific IL-2^(+)CD4^(+)responses fulfilled the superior and non-inferior criteria for ID-CC compared to im-CC,whereas IgG avidity was *** ID-CCC,S-RBD IgG,surrogate virus neutralisation test,90%plaque reduction neutralisation titre(PRNT90),PRNT50,S IgG avidity,S IgG FcγRIIIa-binding,M-specific IL-2^(+)CD4^(+),interferon-γ+CD8^(+)and IL-2^(+)CD8^(+)responses were superior and non-inferior to *** estimated vaccine efficacies were 49%,52%,66%and 79%for im-CC,ID-CC,im-CCC and ID-CCC,*** ID groups reported more local,mild adverse *** This is the first study to demonstrate superior antibody and M-specific T-cell responses by ID inactivated SARSCoV-2 vaccination and serves as the basis for future research to improve the

关键词： CoronaVac Coronavirus disease 2019 immunity Intradermal Vaccine

Hidden army within:Harnessing the microbiome to improve cancer treatment outcomes

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World Journal of Clinical Cases 2024年第28期12卷 6159-6164页

作者： Ippokratis Messaritakis Georgios Vougiouklakis Asimina Koulouridi Aris P Agouridis Nikolaos Spernovasilis department of microbiology German Oncology Center&Yiannoukas Labs LTDBioiatriki GroupLimassol 4108Cyprus department of Internal Medicine German Oncology CenterLimassol 4108Cyprus department of Oncology German Oncology CenterLimassol 4108Cyprus School of Medicine European University CyprusNicosia 2404Cyprus department of Infectious Diseases German Oncology CenterLimassol 4108Cyprus

The gut microbiome has emerged as a critical player in cancer pathogenesis and treatment ***,an imbalance in the gut microbial community,impacts tumor initiation,progression,and therapy *** bacterial species have been associated with either promoting or inhibiting tumor growth,offering potential targets for therapeutic *** gut microbiome in-fluences the efficacy and toxicity of conventional treatments and cutting-edge immunotherapies,highlighting its potential as a therapeutic target in cancer ***,translating microbiome research into clinical practice requires addres-sing challenges such as standardizing methodologies,validating microbial bio-markers,and ensuring ethical ***,we provide a comprehensive overview of the gut microbiome's role in cancer highlighting the need for on-going research,collaboration,and innovation to harness its full potential for im-proving patient outcomes in *** current editorial aims to explore these insights and emphasizes the need for standardized methodologies,validation of microbial biomarkers,and interdisciplinary collaboration to translate microbiome research into clinical ***,it underscores ethical consider-ations and regulatory challenges surrounding the use of microbiome-based ***,this article advocates for ongoing research,collaboration,and innovation to realize the full potential of microbiome-guided oncology in impro-ving patient care and outcomes.

关键词： Gut microbiome Cancer treatment immunotherapy Microbiome-based interventions Dysbiosis Precision oncology

Debaryomyces hansenii supplementation in low fish meal diets promotes growth,modulates microbiota and enhances intestinal condition in juvenile marine fish

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Journal of Animal Science and Biotechnology 2024年第1期15卷 253-276页

作者： Ignasi Sanahuja Alberto Ruiz Joana P.Firmino Felipe E.Reyes-López Juan B.Ortiz-Delgado Eva Vallejos-Vidal Lluis Tort Dariel Tovar-Ramírez Isabel M.Cerezo Miguel A.Moriñigo Carmen Sarasquete Enric Gisbert Aquaculture Program Institute of Agrifood Research and Technology(IRTA)La Rapita 43540Spain Centro de Biotecnologia Acuicola Universidad de Santiago de ChileSantiagoChile Instituto de Ciencias Marinas de Andalucia(ICMAN-CSIC) Avda.Republica Saharaui no 2Campus Universitario Rio San PedroPuerto RealCadiz 11510Spain Nucleo de Investigaciones Aplicadas en Ciencias Veterinarias y Agronomicas Facultad de Medicina Veterinaria y AgronomiaUniversidad de Las AmericasSantiagoChile department of Cell Biology Physiologyand ImmunologyUniversitat Autonoma de BarcelonaBarcelonaSpain Centro de Investigaciones Biologicas del Noroeste SC CIBNORLa PazMexico department of microbiology Instituto de Biotecnologia Y Desarrollo Azul(IBYDA)Faculty of SciencesUniversity of Malaga29010 MalagaSpain SCBI Bioinformatic UnitUniversity of Malaga29590 MalagaSpain

Background The development of a sustainable business model with social acceptance,makes necessary to develop new strategies to guarantee the growth,health,and well-being of farmed *** hansenii is a yeast species that can be used as a probiotic in aquaculture due to its capacity to i)promote cell proliferation and differen-tiation,ii)have immunostimulatory effects,iii)modulate gut microbiota,and/or iv)enhance the digestive *** provide inside into the effects of *** on juveniles of gilthead seabream(Sparus aurata)condition,we inte-grated the evaluation of the main key performance indicators coupled with the integrative analysis of the intestine condition,through histological and microbiota state,and its transcriptomic *** After 70 days of a nutritional trial in which a diet with low levels of fishmeal(7%)was supplemented with 1.1%of ***(17.2×10^(5) CFU),an increase of ca.12%in somatic growth was observed together with an improve-ment in feed conversion in fish fed a yeast-supplemented *** terms of intestinal condition,this probiotic modu-lated gut microbiota without affecting the intestine cell organization,whereas an increase in the staining intensity of mucins rich in carboxylated and weakly sulphated glycoconjugates coupled with changes in the affinity for certain lectins were noted in goblet *** in microbiota were characterized by the reduction in abundance of several groups of Proteobacteria,especially those characterized as opportunistic *** microarrays-based transcrip-tomic analysis found 232 differential expressed genes in the anterior-mid intestine of ***,that were mostly related to metabolic,antioxidant,immune,and symbiotic *** Dietary administration of *** enhanced somatic growth and improved feed efficiency param-eters,results that were coupled to an improvement of intestinal condition as histochemical and transcriptomic tools *** probiotic ye

关键词： Debaryomyces hansenii Intestine condition Low fish meal diet Microbiota Transcriptomics Yeast probiotic

Salicylic Acid and its Function in Plant immunity

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Journal of Integrative Plant Biology 2011年第6期53卷 412-428页

作者： Chuanfu An Zhonglin Mou department of microbiology and Cell Science University of Florida Gainesville FL 32611 USA

The small phenolic compound salicylic acid （SA） plays an important regulatory role in multiple physiological processes including plant im- mune response. Significant progress has been made during the past two decades in understanding the SA-mediated defense signaling network. Characterization of a number of genes functioning in SA biosynthesis, conjugation, accumulation, signaling, and crosstalk with other hormones such as jasmonic acid, ethylene, abscisic acid, auxin, gibberellic acid, cytokinin, brassinosteroid, and peptide hormones has sketched the finely tuned immune response network. Full understanding of the mech- anism of plant immunity will need to take advantage of fast developing genomics tools and bioinformatics techniques. However, elucidating genetic components involved in these pathways by conventional ge- netics, biochemistry, and molecular biology approaches will continue to be a major task of the community. High-throughput method for SA quantification holds the potential for isolating additional mutants related to SA-mediated defense signaling.

关键词： salicylic acid (SA) systemic acquired resistance NPR1 crosstalk SA biosensor plant defense.

Effects of NS1 variants of H5N1 influenza virus on interferon induction, TNFa response and p53 activity

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Cellular & Molecular immunology 2010年第3期7卷 235-242页

作者： Weizhong Li Gefei Wang Heng Zhang Gang Xin Dangui Zhang Jun Zeng Xiaoxuan Chen Yanxuan Xu Youhong Cui Kangsheng Li department of microbiology and immunology Key Immunopathology Laboratory of Guangdong ProvinceShantou University Medical CollegeShantouChina

Non-structural protein 1(NS1)is an important virulence factor of the highly pathogenic H5N1 avian influenza virus.A five-amino-acid(5 aa)deletion at position 80–84 and an aspartic acid to glutamic acid substitution at position 92(D92E)are two major NS1 mutations that are highly correlated with enhanced *** investigate the effect of these mutations in H5N1 virulence,three H5N1-NS1 variants were constructed:NS51(lacking 5 aa at position 80–84),NS51(I)(carrying a 5-aa insertion at position 80–84)and NS51(im)(carrying both the 5-aa insertion and the D92E mutation).We examined the effects of these mutations on interferon(IFN)induction,tumor-necrosis factor(TNF)a response,p53 activity and *** found that the D92E mutation eliminated NS1’s repressive effect on IFN induction,while the 5-aa deletion resulted in enhanced resistance to TNFa *** also observed that all three variants exhibited a similar suppressive effect on p53 transcriptional activity,although none of them significantly influenced apoptosis of host *** findings shed new light on the role of NS1 in the pathogenicity of H5N1 virus.

关键词： H5N1 influenza virus interferon NS1 variants p53 TNFa

Pattern and antibiogram of urinary tract infection at the University of Port Harcourt Teaching Hospital

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Asian Pacific Journal of Tropical Medicine 2010年第1期3卷 66-69页

作者： Wariso KT Siminialayi im Odigie JO department of Medical microbiology and Parasitology College of Health SciencesUniversity of Port Harcourt department of Pharmacology and Toxicology College of Health SciencesUniversity of Port Harcourt

Objective:To explore the prevalence,pathogenicity,and antibiotic susceptibility patterns of urinary tract infections at the University of Port Harcourt Teaching ***:Samples from 400 patients with a presumptive diagnosis of urinary tract infection including 250 non pregnant females and 150 males were used for this *** were distributed into two groups: children aged 2 to 17(Croup A) and adults aged 18 to 75(Croup B).The standard wire loop and agar diffusion technique were employed for culture and susceptibility testing,*** obtained were analysed using SPSS,version ***:30.0%of Group A and 41.0%of Group B had significant bacteriuria with 66.7%and 79.3%as females,*** commonest isolates cultured were Escherichia coli(32.8%),Staphylococcus aureus(17.2%),and Klebsiella spp.(16.4%).About 76.6%of isolates were sensitive to the fluorinated quinolones,31.2%to the aminoglycosides,and 22.7%to the urinary antiseptic,*** isolates were nonsensitive to tetracycline(93.8%),cotrimoxazole(92.2%),and nalidixic acid(86.7%).Most isolates showed non-uniform sensitivity patterns to the cephaloporins(cefuroxime and ceftazidime). Pseudomonas *** were generally resistant to the fluorinated ***: Though the fluorinated quinolones are still largely effective for empirical therapy in urinary tract infections,the importance of prior sensitivity testing in checking the emergence of bacterial antibiotic resistance can not be overemphasized.

关键词： Urinary tract infection Bacterial susceptibility Antibiotic resistance Port Harcourt