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Morphological and productivity responses of Buffel grass(Cenchrus ciliaris)and Guinea grass(Panicum maximum)ecotypes to simulated grazing in a semi-arid environment

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Grassland Research 2022年第4期1卷 290-300页

作者： Bosco Kidake Kisambo Oliver V.Wasonga Oscar K.Koech george n.karuku Department of Land Resources Management and Agricultural Technology University of NairobiNairobiKenya Arid and Range Lands Research Institute—Kiboko Kenya Agricultural and Livestock Research Organization(KALRO)NairobiKenya

Background Livestock production is an economically significant activity in grassland-based production systems with herbivory,a critical process in modifying plant structure and regulating biomass dynamics in these *** A grazing simulation experiment was undertaken in a semi-arid environment in Kenya to determine the effects of clipping frequency and intensity on the morphology and productivity of Cenchrus ciliaris and Panicum maximum grass *** ecotypes were clipped at different frequencies(every 2,4,and 12 weeks)and different intensities(5,10,and 15 cm clipping heights).The morphological responses of the grass ecotypes and biomass yields were *** The grass ecotypes showed significantly(pnses to cutting frequency and *** parameters,tillering,and biomass production were all affected by clipping frequency and *** highest dry matter(DM)yields were recorded under low frequency(LF)clipping,followed by moderate frequency(MF)clipping and high frequency(HF)*** clipping in *** ecotype Kilifi was 20%and 31%more compared to MF and HF *** significant difference in yields was found by cutting the *** ecotype Magadi at 4-and 12-week intervals,even though clipping at 2-week intervals cumulatively yielded less *** was a biomass yield reduction in *** ecotype Taveta of 23%and 25%for MF and HF clipping,respectively,while for ecotype Isinya,the reduction was 13%and 15%for MF and HF,*** intensity had a significant(pn cumulative yields in *** ecotypes,but not *** differences were apparent in both *** and *** ecotype DM *** The results in this study suggest that clipping range grass ecotypes less frequently(4-and 12-week intervals)and at 10 and 15 cm stubble heights results in higher biomass ***,LF and MF grazing and cutting strategies are advantageous for semi-arid lan

关键词： dry matter dryland grasslands grazing grazing frequency grazing intensity pastures rehabilitation

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Cerebral venous sinus thrombosis:changing trends in the incidence,age and gender(findings from the CMC Vellore CVT registry)

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Stroke & Vascular neurology 2024年第3期9卷 252-257页

作者： Angel Miraclin T John Davis Prasad george Abraham ninan Mahasampath Gowri Deepti Bal Atif Iqbal Ahmed Shaikh Rohit n Benjamin Appaswamy Thirumal Prabhakar Ajith Sivadasan Vivek Mathew Sanjith Aaron Department of neurological Sciences Christian Medical CollegeVelloreTamil NaduIndia Department of Biostatistics Christian Medical CollegeVelloreTamil NaduIndia

Background Multiple cerebral venous sinus thrombosis(CVT)registries from various geographical regions indicate that female gender,the use of contraceptive pills,pregnancy and puerperium are important risk *** this study,we report the changes in the epidemiology of patients with CVT managed over the past 26 *** The CMC Vellore CVT registry is a prospectively maintained database at the Christian Medical College,Vellore since January *** software was used to analyse the data and assess the changes in the incidence,age and gender distribution over the previous 26 *** Among 1701 patients treated during the study period,908(53%)were women and 793(47%)were *** mean incidence of CVT was 49 per 100000 admissions before 2010,which increased to 96 per 100000 after *** gender had a higher odds of developing CVT OR–2.07(CI 1.68 to 2.55,pning incidence of postpartum CVT after 2010 compared with the decade before 2010(50%vs 20%).The mean age at presentation had increased from 24.5 to 33.2 years in the last *** There was a clear change in the gender pattern from being a condition with female preponderance,to one where equal or more men are being *** incidence of postpartum CVT cases could be the driving *** increase in the overall incidence of CVT cases was noted,probably due to a higher index of clinical suspicion and better diagnostic imaging modalities.

关键词： CVT driving maintained

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Boron-containing compounds as labels,drugs,and theranostic agents for diabetes and its complications

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World Journal of Diabetes 2024年第6期15卷 1060-1069页

作者： Marvin A Soriano-Ursúa R Ivan Cordova-Chávez Eunice D Farfan-García george Kabalka Department of Physiology Escuela Superior de MedicinaInstituto Politécnico NacionalCiudad de México 11340Mexico Department of Physiology Instituto Politécnico NacionalMexico City 11340Mexico Department of Biochemistry Instituto Politécnico NacionalMexico City 11340Mexico Department of Chemistry The University of TennesseeKnoxvilleTN 37996United States

Diabetes is a disease with a high global *** strategies have failed to limit the advancement and impact of the *** early diagnosis and treatment will require the development of new *** this sense,boroncontaining compounds have been reported as agents with the ability to reduce glycemia and *** have also been used for labeling and measuring carbohydrates and other molecules linked to the initial stages of diabetes and its *** addition,certain boron compounds bind to molecules related to diabetes development and their biological activity in the regulation of elevated ***,it should be noted that some boron compounds appear to exert beneficial effects on diabetes complications such as accelerating wound healing while ameliorating pain in diabetic patients.

关键词： Boron Carbohydrates Metabolism Diabetes Boronodipyrromethene

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Liver Characterization of a Cohort of Alpha-1 Antitrypsin Deficiency Patients with and without Lung Disease

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Journal of Clinical and Translational Hepatology 2024年第10期12卷 845-856页

作者： naweed Mohammad Regina Oshins Tongjun Gu Virginia Clark Jorge Lascano naziheh Assarzadegan george Marek Mark Brantly nazli Khodayari Division of Pulmonary Critical Care and Sleep MedicineCollege of MedicineUniversity of FloridaGainesvilleFLUSA Interdisciplinary Center for Biotechnology Research Bioinformatics CoreUniversity of FloridaGainesvilleFLUSA Division of Gastroenterology Hepatology and NutritionCollege of MedicineUniversity of FloridaGainesvilleFLUSA Division of Pathology Immunologyand Laboratory MedicineCollege of MedicineUniversity of FloridaGainesvilleFLUSA Division of Gastroenterology and Hepatology Mayo ClinicRochesterMNUSA

Background and Aims:Alpha-1 antitrypsin deficiency(AATD)is a genetic disorder characterized by the misfolding and accumulation of the mutant variant of alpha-1 antitrypsin(AAT)within hepatocytes,which limits its access to the circulation and exposes the lungs to protease-mediated tissue *** results in progressive liver disease secondary to AAT polymerization and accumulation,and chronic obstructive pulmonary disease(COPD)due to deficient levels of AAT within the *** goal was to characterize the unique effects of COPD secondary to AATD on liver disease and gene ***:A subcohort of AATD individuals with COPD(n=33)and AATD individuals without COPD(n=14)were evaluated in this study from our previously reported cross-sectional *** used immunohistochemistry to assess the AATD liver phenotype,and RnA sequencing to explore liver *** observed a distinct transcriptomic profile in liver tissues from AATD individuals with COPD compared to those ***:A total of 339 genes were differentially *** pathways related to fibrosis,extracellular matrix remodeling,collagen deposition,hepatocellular damage,and inflammation were significantly upregulated in the livers of AATD individuals with *** analysis also revealed higher levels of fibrosis and hepatocellular damage in these ***:Our data supports a relationship between the development of COPD and liver disease in AATD and introduces genes and pathways that may play a role in AATD liver disease when COPD is *** believe addressing lung impairment and airway inflammation may be an approach to managing AATD-related liver disease.

关键词： Alpha-1 antitrypsin deficiency Chronic obstructive pulmonary disease Liver fibrosis Liver biopsy Liver histology Transcriptomics

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Genetic characteristics of H1n1 influenza virus outbreak in China in early 2023

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Virologica Sinica 2024年第3期39卷 520-523页

作者： Xuanxuan Li Zefeng Dong Jiaming Li Chuanran Dou Deyu Tian Zhenghai Ma Wenjun Liu george F.Gao Yuhai Bi College of Life Science and Technology Xinjiang UniversityUrumchi830046China CAS Key Laboratory of Pathogen Microbiology and Immunology Institute of MicrobiologyCenter for Influenza Research and Early-warning(CASCIRE)CAS-TWAS Center of Excellence for Emerging Infectious Diseases(CEEID)Chinese Academy of SciencesBeijing100101China Suzhou Center for Disease Control and Prevention Suzhou215004China Lafayette College EastonPA 18042USA University of Chinese Academy of Sciences Beijing100049China D.H.Chen School of Universal Health Zhejiang UniversityHangzhou 310058China

Dear Editor,Influenza A virus(IAV)exhibits rapid mutability and antigenic *** the 20th century,IAV has caused at least four pandemics(Yang et al.,2022).Presently,seasonal H_(3)n_(2)and H1n1 are the prevailing human-adaptive IAV subvariants responsible for human *** implementation of public health interventions since the commencement of the COVID-19 pandemic has effectively curtailed global influenza circulation(Olsen et al.,2021).Following the downregulation of the prevention and control strategies against COVID-19,global influenza activity is showing a recovery.

关键词： influenza prevention H1n1

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Differential Transcriptional Responses in Corneal and Lung Epithelial Cells to Seasonal Influenza With Potential Function of LGALS9

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Infectious Microbes & Diseases 2024年第3期6卷 141-151页

作者： Yang Han Ting Zhang Dan Bai Changcheng Wu Beiwei Ye Jianfang Zhou Yingze Zhao george F.Gao Jun Liu national Clinical Research Center for Ocular Diseases Eye HospitalWenzhou Medical UniversityWenzhouChina State Key Laboratory of Ophthalmology Optometry and Visual ScienceEye HospitalWenzhou Medical UniversityWenzhouChina nHC Key Laboratory of Biosafety National Institute for Viral Disease Control and PreventionChinese Center for Disease Control and Prevention(China CDC)BeijingChina Collaborative Innovation Centre of Regenerative Medicine and Medical BioResource Development and Application Co-constructed by the Province and Ministry Guangxi Medical UniversityNanningChina national Key Laboratory of Intelligent Tracking and Forecasting for InfectiousDiseases(nITFID) National Institute for Viral Disease Control and PreventionChinese Center for Disease Control and PreventionBeijingChina CAS Key Laboratory of Pathogen Microbiology and Immunology Institute of MicrobiologyChinese Academy of SciencesBeijingChina

Seasonal flu,primarily caused by influenza A H1n1 and H3n2 subtype viruses or influenza B viruses,is the most prevalent respiratory tract infection globally and leads to substantial morbidity andmortality *** the influenza virus being initially recognized as a respiratory pathogenwithwell-characterized transmission through respiratory droplets,its impact on the ocular epithelium and associated gene expression remains relatively *** this study,we investigated the transcriptional profiles of immortalized human corneal epithelial cells(HCE-S)and A549 human lung epithelial cells infected with H1n1 and H3n2 influenza *** comparison with A549 cells,a reduced number of differentially expressed geneswas observed in HCE-S upon influenza virus ***,there was a significant upregulation of the genes IFI44L and OAS1,along with lower release of the CCL5/RAnTES ***,our findings revealed uniquely upregulated LGALS9(encoding galectin-9)in HCE-S following infection with the 2009 pandemic H1n1 ***,targeted knockdown of LGALS9 in these cells resulted in a measurable decrease in viral infection,highlighting its role in the cellular responses to influenza virus and suggesting a novel avenue for antiviral ***,our findings provide insight into the distinct mechanisms of influenza virus interactions with different epithelial cells and underscore the importance of studying the ocular surface in understanding influenza pathogenesis.

关键词： immortalized human corneal epithelial cell line human pulmonary epithelial cell line influenza A virus transcriptome sequencing LGALS9

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DIPLOMATIC DECADES

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Beijing Review 2024年第20期67卷 20-20页

作者： george n.Tzogopoulos Centre International de Formation Européenne

This year marks the 6Oth anniversary of Sino-French diplomatic *** is not a typical *** back to 1964,it becomes evident that international conditions did not necessarily favor such a breakthrough at that time.

关键词： anniversary breakthrough diplomatic

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Chinese new Year Lessons

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Beijing Review 2024年第6期67卷 24-24页

作者： george n.Tzogopoulos Centre International de Formation Européenne

The ancient Chinese civilization,dating back five millennia,remains a point of reference and a reason for admiration in today's *** it makes sense that several Chinese governmental initiatives outline the link between past and *** Global Civilizations Initiative,proposed by President Xi Jinping in 2023 and meant to promote humanity's shared values,constitutes one characteristic example thereof.

关键词： dating humanity today

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Where Is the Chinese Economy Headed in 2024?

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Beijing Review 2024年第4期67卷 21-21页

作者： george n.Tzogopoulos the EU-China Program at the Centre International de Formation Europeenne

The new year has started with ongoing regional *** conflicts in Ukraine and the Middle East persist and cause uncertainty in the world *** Middle East crisis,in particular,has already shown some signs of a spillover *... 详细信息

关键词： companies effect Middle

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Enhanced potency of an IgM-like nanobody targeting conserved epitope in SARS-CoV-2 spike n-terminal domain

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Signal Transduction and Targeted Therapy 2024年第6期9卷 2726-2737页

作者： Bo Liu Honghui Liu Pu Han Xiaoyun Wang Chunmei Wang Xinxin Yan Wenwen Lei Ke Xu Jianjie Zhou Jianxun Qi Ruiwen Fan Guizhen Wu Wen-xia Tian george F.Gao Qihui Wang College of Veterinary Medicine Shanxi Agricultural University030801 JinzhongChina CAS Key Laboratory of Pathogen Microbiology and Immunology Institute of MicrobiologyChinese Academy of Sciences(CAS)100101 BeijingChina School of Life Sciences Yunnan University650504 KunmingYunnan ProvinceChina nHC Key Laboratory of Biosafety National Institute for Viral Disease Control and PreventionChinese Center for Disease Control and Prevention(China CDC)102206 BeijingChina Savaid Medical School University of Chinese Academy of Sciences101408 BeijingChina

Almost all the neutralizing antibodies targeting the receptor-binding domain(RBD)of spike(S)protein show weakened or lost efficacy against severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)emerged or emerging variants,such as Omicron and its *** suggests that highly conserved epitopes are crucial for the development of neutralizing ***,we present one nanobody,n235,displaying broad neutralization against the SARS-CoV-2 prototype and multiple variants,including the newly emerged Omicron and its ***-electron microscopy demonstrates n235 binds a novel,conserved,cryptic epitope in the n-terminal domain(nTD)of the S protein,which interferes with the RBD in the neighboring S *** neutralization mechanism interpreted via flow cytometry and Western blot shows that n235 appears to induce the S1 subunit shedding from the trimeric S ***,a nano-IgM construct(Mn235),engineered by fusing n235 with the human IgM Fc region,displays prevention via inducing S1 shedding and cross-linking virus *** to n235,Mn235 exhibits varied enhancement in neutralization against pseudotyped and authentic viruses in *** intranasal administration of Mn235 in low doses can effectively prevent the infection of Omicron sub-variant BA.1 and XBB in vivo,suggesting that it can be developed as a promising prophylactic antibody to cope with the ongoing and future infection.

关键词： doses prevention conserved

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