bluuebunny/crossref_metadata_2025_split huggingface dataset:
The effects of Lr34 and Lr67 on Fusarium head blight resistance and deoxynivalenol accumulation in wheat
Authors: McCallum Brent D. , Hiebert Colin W. , McCartney Curt A. , Henriquez Maria Antonia 
Published: May 2024

AbstractThe resistance gene Lr34 conditions durable disease resistance to many biotrophic wheat pathogens and has been incorporated into many wheat cultivars throughout the world. Lr67 is a similar adult plant resistance gene that also conditions resistance to multiple wheat diseases. Both genes significantly reduce disease severity and work in an additive manner with other rust resistance genes. To determine the effect of Lr34 and Lr67 on Fusarium head blight (FHB), two doubled haploid populations, segregating for each of these genes, were developed in the Thatcher wheat background by crossing near‐isogenic lines. Progeny from these populations were tested in five Fusarium graminearum‐inoculated disease nurseries and assessed for FHB symptoms, using a visual rating index (VRI), and deoxynivalenol (DON) accumulation. Both Lr34 and Lr67 significantly reduced visual symptoms of FHB and DON overall, though those effects were not significant in all environments. The overall reduction in the group of progeny with the resistant allele compared to the group with the susceptible allele for VRI was 9.4% for Lr34 and 6.8% for Lr67, while for DON it was 16.4% for Lr34 and 14.9% for Lr67. These genes represent important tools for improving resistance to FHB and many other diseases in wheat.
Microbiome dynamics during malting of barley grains infested by Fusarium graminearum strains
Authors: Bakker Matthew G. , Jayathissa Anuradha U. , Fernando W. G. Dilantha , Badea Ana , Tucker James R. 
Published: May 2024

AbstractBarley grain harvested for malting poses an interesting case study for the impacts of plant‐associated microbiomes because the conditions created during malting favour continued vigorous microbial activity after grain harvest. Suppression of pathogens is among the key functions performed by microbiomes, and it would be beneficial if we could harness this function. Over a 3‐year field trial, we micro‐malted barley that had been experimentally infested with each of seven different strains of the fungal pathogen Fusarium graminearum, and profiled bacterial microbiomes at key stages in the malting process (grain, post‐steeping, post‐germination and final dried malt). The greatest impacts on bacterial microbiomes were observed to be from the year and stage of malting, with comparatively fewer impacts of barley cultivar or pathogen strain. Relatively limited impacts of the presence and strain identity of fungal pathogen on the bacterial microbiome of malting barley probably reflects the colonization by other fungi, as our inoculation took place under field conditions with supplemental irrigation. Both community level shifts and significant responses by individual taxa were evident. Microbiome characteristics or the relative abundances of specific bacterial taxa helped to explain pathogen biomass, mycotoxin production and beer gushing. Manipulative experiments will be required to test hypotheses suggested by these microbiome profiles.
End‐of‐life conversations for the older person: A concept analysis
Authors: Yip Wing Ki Agnes , Chung Pui Man Betty , Christensen Martin 
Published: May 2024

AbstractAimThe aim of this concept analysis is to seek clarity as to what end‐of‐life conversations involve by developing a clear working definition and using model cases to conceptualise the defining attributes of an end‐of‐life conversations with the older person.DesignWalker and Avant's eight step approach to Concept Analysis.Data SourcesFour databases were searched, including PubMed, CINAHL, PsycINFO, and Scopus. A total of 339 publications were identified with 30 papers meeting the inclusion criteria and put forward for the final conceptual analysis.ResultsThe defining attributes associated with end‐of life conversations included (1) an ongoing process of older person empowerment, (2) discussion's concerning values and preferences concerning end‐of‐life issues, and (3) maintaining an open dialogue between all concerned individuals. Antecedents were associated with the older person is their readiness to talk openly about death and dying. Consequences were identified as having a better understanding of what death and dying may mean to the older person in a more specific manner.ConclusionsEnd‐of‐life conversations are vital in understanding an individual's values and preferences at the end of life, and yet, the concept of the end‐of‐life conversation has not been well defined in the literature. End‐of‐life conversations with the older person encompass ongoing discussions and maintaining open dialogue around end‐of‐life care while developing strategies to promote individual empowerment in making informed choices. Using a conceptual model, aides in addressing aspects of end‐of‐life conversations and an acknowledgment of the dynamic process of end‐of‐life conversations.
Collecting pieces for the ‘puzzle’: Nurses' intraprofessional collaboration in the hospital‐to‐home transition of older patients
Authors: Hansen Mette Frier , Martinsen Bente , Galvin Kathleen , Thomasen Bjørn Porup , Norlyk Annelise 
Published: May 2024

AbstractBackground and aimCommunication is a key factor in intraprofessional collaboration between hospital nurses and homecare nurses in hospital‐to‐home transitions of older patients with complex care needs. Gaining knowledge of the nature of cross‐sectoral communication is crucial for understanding how nurses collaborate to ensure a seamless patient trajectory. This study explores how cross‐sectoral electronic health records communication influences collaboration between hospital nurses and homecare nurses when discharging older patients with complex care needs.MethodThe study is based on qualitative group interviews with six hospital nurses and 14 homecare nurses working at different hospitals and municipalities across Denmark. Data were analysed using reflexive thematic analysis, as described by Braun and Clark.FindingsThe themes Collecting pieces for the ‘puzzle’: Losing the holistic picture of the patient; Working blindfolded: limited provision of and access to critical information; and Bypassing the ‘invisible wall’: dialogue supports cohesion illustrate the impact of organisational structures within electronic health records have on hospital nurses' and homecare nurses' intraprofessional collaboration across sectors. Challenges with predefined and word‐limited elements in digital communication, and inadequate and limited access to significant medical information were identified. To compensate for the inadequacy of the electronic health records, direct contact and dialogue were emphasised as ways of fostering successful collaboration and overcoming the barriers created by electronic health records.ConclusionDespite hospital nurses' and homecare nurses' desire to conduct holistic patient assessments, their ability to collaborate was hindered by failures in electronic health record communication resulting from restrictive organisational structures across sectors. Thus, it became necessary for hospital nurses and homecare nurses to bypass the electronic health record system and engage in dialogue to provide holistic care when discharging older patients with complex care needs. However, by hospital nurses and homecare nurses compensating for counter‐productive organisational structures, problems brought about by the electronic health record system paradoxically remain invisible.
Patient outcomes by baseline pathogen resistance phenotype and genotype in CERTAIN-1, a Phase 3 study of cefepime-taniborbactam versus meropenem in adults with complicated urinary tract infection
Authors: Moeck Greg , Gasink Leanne B. , Mendes Rodrigo E. , Woosley Leah N. , Dorr MaryBeth , Chen Hongzi , Wagenlehner Florian M. , Henkel Tim , McGovern Paul C. 
Published: May 2024

ABSTRACT

CERTAIN-1 was a Phase 3, double-blind, randomized, parallel group study of the efficacy and safety of cefepime-taniborbactam versus meropenem in the treatment of adults with complicated urinary tract infection (cUTI), including acute pyelonephritis. We determined susceptibility of Enterobacterales and
Pseudomonas aeruginosa
baseline pathogens to cefepime-taniborbactam and comparators and characterized β-lactam resistance mechanisms. Microbiologic response and clinical response were assessed in patient subsets defined by baseline pathogens that were of cefepime-, multidrug-, or carbapenem-resistant phenotype or that carried β-lactamase genes. Among Enterobacterales baseline pathogens, 26.8%, 4.1%, and 3.0% carried genes for extended-spectrum β-lactamases (ESBLs), AmpC, and carbapenemases, respectively. Within each treatment group, while composite success rates at Test of Cure in resistant subsets by pathogen species were similar to those by pathogen overall, composite success rates in meropenem patients were numerically lower for cefepime-resistant
Escherichia coli
(9/19; 47.4%) and ESBL
E. coli
(13/25; 52.0%) compared with
E. coli
overall (62/100; 62.0%). Cefepime-taniborbactam achieved composite success in 7/8 (87.5%) patients with carbapenem-resistant Enterobacterales and 8/9 (88.9%) patients with Enterobacterales with a carbapenemase gene (5 OXA-48-group; 2 KPC-3; 2 NDM-1). Cefepime-taniborbactam also achieved composite success in 8/16 (50.0%) patients and clinical success in 13/16 (81.3%) patients with
P. aeruginosa
; corresponding rates were 4/7 (57.1%) and 6/7 (85.7%) for meropenem. Cefepime-taniborbactam demonstrated efficacy in adult cUTI patients with cefepime-, multidrug-, and carbapenem-resistant pathogens including pathogens with ESBL, AmpC, and carbapenemase genes.

CLINICAL TRIALS

This study is registered with

ClinicalTrials.gov
as
NCT03840148

.
Dissemination of influenza B virus to the lower respiratory tract of mice is restricted by the interferon response
Authors: Schwab Lara S. U. , Do Thi H. T. , Pilapitiya Devaki , Koutsakos Marios 
Published: May 2024

ABSTRACT

The global burden of disease caused by influenza B virus (IBV) is substantial; however, IBVs remain overlooked. Understanding host–pathogen interactions and establishing physiologically relevant models of infection are important for the development and assessment of therapeutics and vaccines against IBV. In this study, we assessed an upper respiratory tract (URT)-restricted model of mouse IBV infection, comparing it to the conventional administration of the virus to the total respiratory tract (TRT). We found that URT infections caused by different strains of IBV disseminate to the trachea but resulted in limited dissemination of IBV to the lungs. Infection of the URT did not result in weight loss or systemic inflammation even at high inoculum doses and despite robust viral replication in the nose. Dissemination of IBV to the lungs was enhanced in mice lacking functional type I IFN receptor (IFNAR2), but not IFNγ. Conversely, in mice expressing the IFN-inducible gene Mx1, we found reduced IBV replication in the lungs and reduced dissemination of IBV from the URT to the lungs. Inoculation of IBV in both the URT and TRT resulted in seroconversion against IBV. However, priming at the TRT conferred superior protection from a heterologous lethal IBV challenge compared to URT priming, as determined by improved survival rates and reduced viral replication throughout the respiratory tract. Overall, our study establishes a URT-restricted IBV infection model, highlights the critical role of IFNs in limiting dissemination of IBV to the lungs, and also demonstrates that the lack of viral replication in the lungs may impact protection from subsequent infections.

IMPORTANCE
Our study investigated how influenza B virus (IBV) spreads from the nose to the lungs of mice and the impact this has on disease and protection from re-infection. We found that when applied to the nose only, IBV does not spread very efficiently to the lungs in a process controlled by the interferon response. Priming immunity at the nose only resulted in less protection from re-infection than priming immunity at both the nose and lungs. These insights can guide the development of potential therapies targeting the interferon response as well as of intranasal vaccines against IBV.
An indigenously developed tele-ICU model to treat severe cases of envenomation in remote regions in India
Authors: MB Lokesh , Parmar Dileep Singh , Singh Sukhdev , Britto Carl 
Published: May 2024

In cases of severe envenomation due to snakebites, patients require antivenom, intensive care management, including respiratory support, haemodynamic monitoring and renal replacement therapy. Early recognition and treatment of complications such as acute kidney injury, rhabdomyolysis and coagulopathy are important to improve outcomes.Tele-ICU models can play a critical role in providing access to critical care expertise and nuanced support to remote healthcare facilities that may not have the necessary resources or expertise to manage complex cases of envenomation. With the help of telemedicine technology, remote intensivists can provide timely guidance on diagnosis and ongoing management, improving the quality of care and outcomes for patients. We discuss two patients in resource-constrained regions of India with severe envenomation who were managed with tele-ICU support.
Torto arado: a literatura de resistência na narrativa de Itamar Vieira Júnior
Authors: Gouveia Juanna Beatriz de Brito , Almeida Matheus Lucas de 
Published: May 2024

O presente artigo analisa o dialogismo entre a literatura e a resistência que se relacionam para apresentar um cenário que trabalha as dicotomias entre medo e coragem, voz e silêncio, fertilidade e infertilidade, cidade e campo na obra Torto arado (VIEIRA JÚNIOR, 2018). Com base nas análises realizadas, percebe-se que a obra mantém relação com a realidade social e traz luz a voz de mulheres resistentes, protetoras e provedoras que atravessaram tudo, suportando a crueldade que lhes foi imposta.
OsEXPA7 Encoding an Expansin Affects Grain Size and Quality Traits in Rice (Oryza sativa L.)
Authors: Zhang Xinwei , Wang Ying , Liu Mingyu , Yan Peiwen , Niu Fuan , Ma Fuying , Hu Jian , He Shicong , Cui Jinhao , Yuan Xinyu , Yang Jinshui , Cao Liming , Luo Xiaojin 
Published: May 2024

Abstract
Background
Yield and quality are the two most important traits in crop breeding. Exploring the regulatory mechanisms that affect both yield and quality traits is of great significance for understanding the molecular genetic networks controlling these key crop attributes. Expansins are cell wall loosening proteins that play important roles in regulating rice grain size.

Results
We investigated the effect of OsEXPA7, encoding an expansin, on rice grain size and quality. OsEXPA7 overexpression resulted in increased plant height, panicle length, grain length, and thousand-grain weight in rice. OsEXPA7 overexpression also affected gel consistency and amylose content in rice grains, thus affecting rice quality. Subcellular localization and tissue expression analyses showed that OsEXPA7 is localized on the cell wall and is highly expressed in the panicle. Hormone treatment experiments revealed that OsEXPA7 expression mainly responds to methyl jasmonate, brassinolide, and gibberellin. Transcriptome analysis and RT-qPCR experiments showed that overexpression of OsEXPA7 affects the expression of OsJAZs in the jasmonic acid pathway and BZR1 and GE in the brassinosteroid pathway. In addition, OsEXPA7 regulates the expression of key quantitative trait loci related to yield traits, as well as regulates the expression levels of BIP1 and bZIP50 involved in the seed storage protein biosynthesis pathway.

Conclusions
These results reveal that OsEXPA7 positively regulates rice yield traits and negatively regulates grain quality traits by involving plant hormone pathways and other trait-related pathway genes. These findings increase our understanding of the potential mechanism of expansins in regulating rice yield and quality traits and will be useful for breeding high-yielding and high-quality rice cultivars.
Comparing the in vitro efficacy of chlorhexidine and povidone-iodine in the prevention of post-surgical endophthalmitis
Authors: Batista Celso Soares Pereira , Loscos-Giménez Irene , Gámez María , Altaba Raul , de Miniac Daniela , Martí Neus , Bassaganyas Francisca , Juanes Elena , Rivera Alba , Navarro Ferran 
Published: May 2024

Abstract
Background
Intravitreal injections are a common ophthalmologic procedure. While infections following these injections are rare, they can lead to endophthalmitis, with potentially serious consequences. Various methods have been proposed to prevent endophthalmitis, including the use of antisepsis and antibiotics in patient preparation.

Purpose
To evaluate the antiseptic efficacy of aqueous chlorhexidine (CHX) and povidone-iodine (PI) when used alone and in combination with lidocaine gel (LG) in vitro.

Methods
Two independent experimental trials were conducted. The first trial determined the minimum inhibitory concentrations (MICs) and the minimum bactericidal concentrations (MBCs) of CHX and PI against six bacterial strains. The second trial evaluated the bactericidal efficacy of the antiseptic agents (CHX 0.1% and PI 5%) and their combination with LG against the same bacterial strains.

Results
CHX was more effective than PI in reducing the number of colonies forming units (cfus) of the tested bacteria. The order in which the antiseptic and LG were administered affected their effectiveness, with CHX administered before LG resulting in greater reduction of bacterial growth.

Conclusions
CHX 0.1% is more effective than PI 5% as an antiseptic agent. Application of CHX and PI prior to the use of lidocaine gel results in a more effective reduction of microorganisms.
The Carthamus tinctorius L. genome sequence provides insights into synthesis of unsaturated fatty acids
Authors: Dong Yuanyuan , Wang Xiaojie , Ahmad Naveed , Sun Yepeng , Wang Yuanxin , Liu Xiuming , Yao Na , Jing Yang , Du Linna , Li Xiaowei , Wang Nan , Liu Weican , Wang Fawei , Li Xiaokun , Li Haiyan 
Published: May 2024

AbstractDomesticated safflower (Carthamus tinctorius L.) is a widely cultivated edible oil crop. However, despite its economic importance, the genetic basis underlying key traits such as oil content, resistance to biotic and abiotic stresses, and flowering time remains poorly understood. Here, we present the genome assembly for C. tinctorius variety Jihong01, which was obtained by integrating Oxford Nanopore Technologies (ONT) and BGI-SEQ500 sequencing results. The assembled genome was 1,061.1 Mb, and consisted of 32,379 protein-coding genes, 97.71% of which were functionally annotated. Safflower had a recent whole genome duplication (WGD) event in evolution history and diverged from sunflower approximately 37.3 million years ago. Through comparative genomic analysis at five seed development stages, we unveiled the pivotal roles of fatty acid desaturase 2 (FAD2) and fatty acid desaturase 6 (FAD6) in linoleic acid (LA) biosynthesis. Similarly, the differential gene expression analysis further reinforced the significance of these genes in regulating LA accumulation. Moreover, our investigation of seed fatty acid composition at different seed developmental stages unveiled the crucial roles of FAD2 and FAD6 in LA biosynthesis. These findings offer important insights into enhancing breeding programs for the improvement of quality traits and provide reference resource for further research on the natural properties of safflower.
Toxin genotypes, antibiotic resistance and their correlations in Clostridioides difficile isolated from hospitals in Xi’an, China
Authors: Zhang Sukai , Ma Chen , Zhang Haiyue , Zhao Congcong , Guo Ruibing , Liu Jiahao , Wang Jing , Yuan Jing , Jia Kai , Wu Airong , Chen Yanjiong , Lei Jin’e 
Published: May 2024

Abstract
Background
Clostridioides difficile is the main pathogen of antimicrobial-associated diarrhoea and health care facility-associated infectious diarrhoea. This study aimed to investigate the prevalence, toxin genotypes, and antibiotic resistance of C. difficile among hospitalized patients in Xi’an, China.

Results
We isolated and cultured 156 strains of C. difficile, representing 12.67% of the 1231 inpatient stool samples collected. Among the isolates, tcdA + B + strains were predominant, accounting for 78.2% (122/156), followed by 27 tcdA-B + strains (27/156, 17.3%) and 6 binary toxin gene-positive strains. The positive rates of three regulatory genes, tcdC, tcdR, and tcdE, were 89.1% (139/156), 96.8% (151/156), and 100%, respectively. All isolates were sensitive to metronidazole, and the resistance rates to clindamycin and cephalosporins were also high. Six strains were found to be resistant to vancomycin.

Conclusion
Currently, the prevalence rate of C. difficile infection (CDI) in Xi’an is 12.67% (156/1231), with the major toxin genotype of the isolates being tcdA + tcdB + cdtA-/B-. Metronidazole and vancomycin were still effective drugs for the treatment of CDI, but we should pay attention to antibiotic management and epidemiological surveillance of CDI.
Carbapenem-resistant gram-negative bacterial infections and risk factors for acquisition in a Kenyan intensive care unit
Authors: Maina Jane Wairimu , Mutua Jeniffer Munyiva , Musyoki Abednego Moki 
Published: May 2024

Abstract
Background
Carbapenem-resistant Gram-negative bacteria (CR-GNB) are a critical public health threat globally; however, there are inadequate surveillance data, especially in intensive care units (ICU), to inform infection prevention and control in many resource-constrained settings. Here, we assessed the prevalence of CR-GNB infections and risk factors for acquisition in a Kenyan ICU.

Methods
A hospital-based cross-sectional study design was adopted, recruiting 162 patients clinically presenting with bacterial infection after 48 h of ICU admission, from January to October 2022 at the Nairobi West Hospital, Kenya. Demographics and clinical data were collected by case report form. The type of sample collected, including blood, tracheal aspirate, ascitic tap, urine, stool, and sputum depended on the patient’s clinical presentation and were transported to the hospital Microbiology laboratory in a cool box for processing within 2 h. The samples were analyzed by cultured and BD Phoenix system used for isolates’ identity and antimicrobial susceptibility.

Results
CR-GNB infections prevalence was 25.9% (42/162), with Klebsiella pneumoniae (35.7%, 15/42) and Pseudomonas aeruginosa (26.2%, 11/42) predominating. All isolates were multidrug-resistant (MDR). P. aeruginosa and A. baumannii were 100% colistin-resistant, while K. pneumoniae (33.3%) was tigecycline-resistant. History of antibiotics (aOR = 3.40, p = 0.005) and nasogastric tube (NGT) use (aOR = 5.84, p = < 0.001) were the risk factors for infection.

Conclusion
Our study highlights high MDR- and CR-GNB infections in ICU, with prior antibiotic exposure and NGT use as risk factors, and diminishing clinical value of colistin and tigecycline. In this study setting and beyond, strict implementation of antimicrobial stewardship programs and adherence to infection prevention and control through monitoring, evaluation and feedback are warranted to curb CR-GNB infections, especially among the risk groups.