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1.
Angew Chem Int Ed Engl ; : e202409149, 2024 Aug 01.
Article in English | MEDLINE | ID: mdl-39087465

ABSTRACT

A novel resonance-assisted self-doping mechanism has been demonstrated in ladder-type oligoaniline-derived organic conductors. The new class of compounds has a unique structure incorporating acidic phenolic hydroxyl groups into the ladder-type cyclohexadiene-1,4-diimine core, enabling efficient proton transfer and self-doping without the need for external dopants. Mechanistic studies and computational studies confirm the open-shell, zwitterionic nature of the self-doped state and the significant role played by the dielectric environment. This new self-doping mechanism allows for higher stability and durability in the material's electronic performance. The self-doped form retains durability under harsh conditions and maintains its properties over extended periods of time.

2.
J Phys Chem B ; 2024 Jul 25.
Article in English | MEDLINE | ID: mdl-39052231

ABSTRACT

Spectrally discriminating CH3OH and CD3OD, and even detecting CH3OH contents in the CD3OD solvent, are important yet have not been achieved so far, likely owing to their very similar chemical/physical properties. Herein, dynamic transesterification reactions, which can be achieved via two-step proton transfers, can be signaled via ultraviolet UV-visible (UV/vis) absorption and fluorescence spectroscopies under mild experimental conditions. Introduction of strong electron-withdrawing groups, such as -NO2, to the aromatic ring (benzoic acid moiety or phenol moiety) of carboxylate esters to activate the esters is important for transesterification reactions and is an intriguing method for modulating the selectivity of the spectral response. The rate constant of the transesterification reaction enhanced with increasing the total number of strong electron-withdrawing groups. Furthermore, the rate constants of esters in which substituent(s) are connected to the phenol moiety are higher than those of corresponding esters in which substituent(s) are connected to the benzoic acid moiety. In transesterification systems, added aliphatic amines mainly play two roles: (i) lowering the energy barrier of the first transesterification step via the formation of intermolecular hydrogen bonding in ternary systems and (ii) deprotonating the released 4-nitrophenol in UV/vis absorption spectral systems to generate an UV/vis absorption spectral signal reporter, i.e., nitrophenolate anions. As a result of the methanol-mediated transesterification reaction, spectral-sensing systems can be established for discriminating CH3OH and CD3OD and even detecting low CH3OH contents in the CD3OD solvent, owing to the kinetic isotope effect. This is the first example of spectral recognition between CD3OD and CH3OH.

3.
Environ Sci Pollut Res Int ; 31(32): 45353-45369, 2024 Jul.
Article in English | MEDLINE | ID: mdl-38963631

ABSTRACT

Due to the frequent detection and potential toxicity of moxifloxacin (MOX), its removal technology had attracted attention in recent years. In this research, CuFeS2/MXene was prepared and used to activate peroxymonosulfate (PMS) to remove MOX. The degradation efficiencies, kinetics, influences, and reaction mechanism of MOX by CuFeS2/MXene/PMS were investigated. The synergistic effect of CuFeS2 and MXene significantly enhanced PMS activation, producing SO4•-, HO•, and 1O2 as the main active species. By adding 0.12 g/L CuFeS2/MXene and 0.12 mM PMS, MOX removal efficiency reached 99.1% within 40 min, with a rate constant of 0.1073 min-1. The composite ratios of CuFeS2/MXene impacted PMS activation more significantly than catalyst dosages and PMS concentrations. Acidic conditions were favorable for the degradation of MOX, while HCO3-, HPO42-, Mn2+, and HA had the inhibitory effects. Twelve major products were detected by HPLC-MS, and DFT was used to illustrate possible degradation pathways of MOX, including the removal of nitrogen-containing heterocycle and transformations of quinolone moieties. Toxicity analysis showed that the developmental toxicity, mutagenicity, and acute toxicity of degradation products tended to decrease. CuFeS2/MXene could exhibit excellent reusability, maintaining an average MOX degradation efficiency of 90.8% in the 7-cycle experiments.


Subject(s)
Moxifloxacin , Water Pollutants, Chemical , Copper/chemistry , Peroxides/chemistry , Kinetics
4.
Foods ; 13(13)2024 Jul 02.
Article in English | MEDLINE | ID: mdl-38998622

ABSTRACT

Bacterial foodborne diseases caused by Vibrio parahaemolyticus pose persistent challenges to coastal cities in China. In this study, we employed multiple logistic regression analysis and distributed lag non-linear models (DLNM) to investigate the epidemiological characteristics and associated risk factors of vibriosis in the metropolitan area of Hangzhou from 2014 to 2018. Analysis of foodborne cases indicated that certain demographics and occupational factors, including age between 16 and 44 years; houseworkers or unemployed individuals; preference for aquatic and meat products; and dining in collective canteens or catering services contribute to an increased likelihood of V. parahaemolyticus infection. Moreover, a higher per capita GDP and exposure to high temperatures were identified as risk factors for vibriosis. This study highlights the significance of the daily mean temperature as a meteorological factor influencing V. parahaemolyticus infection, with varying lag effects observed depending on temperature conditions. At low temperatures, the risk of infection occurs after a lag of 21 days, whereas at high temperatures, the risk is highest on the same day, while the second infection risk period occurs after a lag of 21 days. These findings provide a spatiotemporal perspective of the risk analysis of foodborne diseases, with a daily timescale and street spatial scale, which contributes to the development of public health strategies and food safety protocols in coastal cities.

5.
Methods Mol Biol ; 2824: 135-146, 2024.
Article in English | MEDLINE | ID: mdl-39039411

ABSTRACT

Compared with traditional antibodies, nanobodies from camelids have various advantages, including small molecular weight, high affinity, low immunogenicity, convenient production through genetic engineering, etc. Here we combined next-generation sequencing (NGS) with proteomics technology based on affinity purification-mass spectrometry (AP-MS) and bioinformatics analysis to high-throughput screen monoclonal nanobodies from camels immunized with surface glycoprotein (glycoprotein N, Gn) of severe fever with thrombocytopenia syndrome virus and fulfilled production of the screened anti-Gn monoclonal nanobody with high affinity by genetic engineering. The innovative high-throughput technical route developed here could also be expanded to the production of neutralizing nanobodies specific for Rift Valley fever virus.


Subject(s)
Antibodies, Neutralizing , High-Throughput Nucleotide Sequencing , Proteomics , Single-Domain Antibodies , High-Throughput Nucleotide Sequencing/methods , Animals , Proteomics/methods , Single-Domain Antibodies/genetics , Single-Domain Antibodies/immunology , Single-Domain Antibodies/isolation & purification , Antibodies, Neutralizing/immunology , Camelus , Antibodies, Viral/immunology , High-Throughput Screening Assays/methods , Mass Spectrometry/methods
6.
Chem Commun (Camb) ; 60(58): 7503-7506, 2024 Jul 16.
Article in English | MEDLINE | ID: mdl-38946591

ABSTRACT

Three iridium(III) complexes were designed with the purpose of elucidating the photo-physicochemical properties of iridium(III) complexes with narrow band gap at the electronic level. This study indicates that increasing the ligand rigidity and electron delocalization of the compounds can suppress the ring-stretching vibrations of the iridium(III) complex, thus improving their photo-chemical activity and photocytotoxicity.

7.
Front Plant Sci ; 15: 1431835, 2024.
Article in English | MEDLINE | ID: mdl-38957598

ABSTRACT

Cotton fiber, the mainstay of the world's textile industry, is formed by the differentiation of epidermal cells on the outer peridium of the ovule. The TBL gene family is involved in the regulation of epidermal hair development as well as response to abiotic stress. However, the function of TBL genes in cotton has not been systematically studied yet. Here, we identified 131 and 130 TBL genes in TM-1 (Gossypium hirsutum) and Hai7124 (Gossypium barbadense), respectively. Phylogenetic, gene structure, expression pattern and cis-element of promoter analysis were performed and compared. Single gene association analysis indicated that more TBL genes related to fiber quality traits were found in G. barbadense, whereas more genes associated with yield traits were found in G. hirsutum. One gene, GhTBL84 (GH_D04G0930), was induced by treatment at 4°C for 12 and 24 h in G. hirsutum and silencing of the GhTBL84 gene by VIGS technology in TM-1 can significantly improve the resistance of cotton seedlings to low temperature stress. In sum, our study conducted a genome-wide identification and comparative analysis of TBL family genes in G. hirsutum and G. barbadense and demonstrated a group of TBL genes significantly associated with fiber quality and excavated cold stress responsive gene, such as GhTBL84, providing a theoretical basis for further improving cotton agronomic traits.

8.
Plant Biotechnol J ; 2024 Jul 24.
Article in English | MEDLINE | ID: mdl-39046162

ABSTRACT

The elucidation of genetic architecture and molecular regulatory networks underlying complex traits remains a significant challenge in life science, largely due to the substantial background effects that arise from epistasis and gene-environment interactions. The chromosome segment substitution line (CSSL) is an ideal material for genetic and molecular dissection of complex traits due to its near-isogenic properties; yet a comprehensive analysis, from the basic identification of substitution segments to advanced regulatory network, is still insufficient. Here, we developed two cotton CSSL populations on the Gossypium hirsutum background, representing wide adaptation and high lint yield, with introgression from G. barbadense, representing superior fibre quality. We sequenced 99 CSSLs that demonstrated significant differences from G. hirsutum in fibre, and characterized 836 dynamic fibre transcriptomes in three crucial developmental stages. We developed a workflow for precise resolution of chromosomal substitution segments; the genome sequencing revealed substitutions collectively representing 87.25% of the G. barbadense genome. Together, the genomic and transcriptomic survey identified 18 novel fibre-quality-related quantitative trait loci with high genetic contributions and the comprehensive landscape of fibre development regulation. Furthermore, analysis determined unique cis-expression patterns in CSSLs to be the driving force for fibre quality alteration; building upon this, the co-expression regulatory network revealed biological relationships among the noted pathways and accurately described the molecular interactions of GhHOX3, GhRDL1 and GhEXPA1 during fibre elongation, along with reliable predictions for their interactions with GhTBA8A5. Our study will enhance more strategic employment of CSSL in crop molecular biology and breeding programmes.

9.
Nat Commun ; 15(1): 4904, 2024 Jun 08.
Article in English | MEDLINE | ID: mdl-38851828

ABSTRACT

Age-related depletion of stem cells causes tissue degeneration and failure to tissue regeneration, driving aging at the organismal level. Previously we reported a cell-non-autonomous DAF-16/FOXO activity in antagonizing the age-related loss of germline stem/progenitor cells (GSPCs) in C. elegans, indicating that regulation of stem cell aging occurs at the organ system level. Here we discover the molecular effector that links the cell-non-autonomous DAF-16/FOXO activity to GSPC maintenance over time by performing a tissue-specific DAF-16/FOXO transcriptome analysis. Our data show that dos-3, which encodes a non-canonical Notch ligand, is a direct transcriptional target of DAF-16/FOXO and mediates the effect of the cell-non-autonomous DAF-16/FOXO activity on GSPC maintenance through activating Notch signaling in the germ line. Importantly, expression of a human homologous protein can functionally substitute for DOS-3 in this scenario. As Notch signaling controls the specification of many tissue stem cells, similar mechanisms may exist in other aging stem cell systems.


Subject(s)
Caenorhabditis elegans Proteins , Caenorhabditis elegans , Forkhead Transcription Factors , Germ Cells , Receptors, Notch , Signal Transduction , Stem Cells , Animals , Caenorhabditis elegans/metabolism , Caenorhabditis elegans/genetics , Caenorhabditis elegans Proteins/metabolism , Caenorhabditis elegans Proteins/genetics , Forkhead Transcription Factors/metabolism , Forkhead Transcription Factors/genetics , Germ Cells/metabolism , Receptors, Notch/metabolism , Receptors, Notch/genetics , Stem Cells/metabolism , Stem Cells/cytology , Aging/metabolism , Aging/genetics , Humans
10.
Opt Express ; 32(10): 17719-17737, 2024 May 06.
Article in English | MEDLINE | ID: mdl-38858947

ABSTRACT

Passive polarimetric imaging has gained substantial attention over the past three decades in various applications in defense. The complexity of polarimetry modeling and measurement in the thermal infrared exceeds that of the visible and near-infrared due to the complementary polarization orientation of reflected and emitted radiance. This paper presents a comprehensive polarimetric radiance model and a degree of linear polarization (DOLP) model, both of which are specifically tailored for the infrared spectrum, accounting for both reflected and emitted radiance. Building on this foundation, we conduct an analysis and simulation of the DOLP's variation as the object temperature changes. This analysis enables the observation of relationships that can be strategically utilized in subsequent experiments focused on measuring polarized model parameters. To mitigate the influence of reflected radiance components, the samples are subjected to high temperatures. The observed Stokes images from the sample surfaces are normalized to eliminate the dependence of each Stokes image on temperature. This parameters acquisition measurement method is particularly well-suited for refractories. Finally, the efficacy of the polarized model parameters acquisition technique is demonstrated through experiments involving three distinct refractory materials in the MWIR.

11.
Sci Rep ; 14(1): 14418, 2024 06 22.
Article in English | MEDLINE | ID: mdl-38909136

ABSTRACT

This study aimed to investigate the epidemiological characteristics and trends over time of carbapenemase-producing (e.g., KPC, NDM, VIM, IMP, and OXA-48) Gram-negative bacteria (CPGNB). Non-duplicated multi-drug resistant Gram-negative bacteria (MDRGNB) were collected from the First Affiliated Hospital of Zhengzhou University from April 2019 to February 2023. Species identification of each isolate was performed using the Vitek2 system and confirmed by matrix-assisted laser desorption ionization-time of flight mass spectrometry according to the manufacturer's instructions. PCR detected carbapenem resistance genes in the strains, strains carrying carbapenem resistance genes were categorized as CPGNB strains after validation by carbapenem inactivation assay. A total of 5705 non-repetitive MDRGNB isolates belonging to 78 different species were collected during the study period, of which 1918 CPGNB were validated, with the respiratory tract being the primary source of specimens. Epidemiologic statistics showed a significant predominance of ICU-sourced strains compared to other departments. Klebsiella pneumoniae, Escherichia coli, Acinetobacter baumannii, and Pseudomonas aeruginosa were the significant CPGNB in Henan, and KPC and NDM were the predominant carbapenemases. Carbapenem-resistant infections in Henan Province showed an overall increasing trend, and the carriage of carbapenemase genes by CPGNB has become increasingly prevalent and complicated. The growing prevalence of CPGNB in the post-pandemic era poses a significant challenge to public safety.


Subject(s)
Bacterial Proteins , Gram-Negative Bacteria , Gram-Negative Bacterial Infections , beta-Lactamases , beta-Lactamases/genetics , beta-Lactamases/metabolism , China/epidemiology , Bacterial Proteins/genetics , Bacterial Proteins/metabolism , Humans , Gram-Negative Bacteria/genetics , Gram-Negative Bacteria/enzymology , Gram-Negative Bacteria/drug effects , Gram-Negative Bacterial Infections/microbiology , Gram-Negative Bacterial Infections/epidemiology , Male , Female , Microbial Sensitivity Tests , Adult , Middle Aged , Carbapenems/pharmacology , Anti-Bacterial Agents/pharmacology , Aged , Drug Resistance, Multiple, Bacterial/genetics , Child , Adolescent , Child, Preschool , Young Adult , Klebsiella pneumoniae/genetics , Klebsiella pneumoniae/enzymology , Klebsiella pneumoniae/isolation & purification , Acinetobacter baumannii/genetics , Acinetobacter baumannii/enzymology , Acinetobacter baumannii/drug effects , Infant
12.
Virus Res ; 346: 199410, 2024 Aug.
Article in English | MEDLINE | ID: mdl-38815870

ABSTRACT

Here we report an ultrafast quadruplex RT-qPCR assay with robust diagnostic ability to detect and distinguish pan-SARS-CoVs and influenza A/B viruses within 35 min. This quadruplex RT-qPCR assay comprised of one novel RNA-based internal control targeting human ß2-microglobulin (B2M) for process accuracy and three newly-designed primers-probe sets targeting the envelope protein (E) of pan-SARS-CoV, matrix protein (MP) of influenza A virus and non-structural (NS) region of influenza B virus. This quadruplex assay exhibited a sensitivity comparable to its singleplex counterparts and a slightly higher to that of the Centers for Disease Control and Prevention-recommended SARS-CoV-2 and influenza A/B assays. The novel assay showed no false-positive amplifications with other common respiratory viruses, and its 95 % limits of detection for pan-SARS-CoV and influenza A/B virus was 4.26-4.52 copies/reaction. Moreover, the assay was reproducible with less than 1 % coefficient of variation and adaptable testing different clinical and environmental samples. Our ultrafast quadruplex RT-qPCR assay can serve as an attractive tool for effective differentiation of influenza A/B virus and SARS-CoV-2, but more importantly prognose the reemergence/emergence of SARS and novel coronaviruses or influenza viruses from animal spillover.


Subject(s)
Influenza A virus , Influenza B virus , Influenza, Human , Sensitivity and Specificity , Humans , Influenza A virus/genetics , Influenza A virus/isolation & purification , Influenza A virus/classification , Influenza B virus/genetics , Influenza B virus/isolation & purification , Influenza, Human/virology , Influenza, Human/diagnosis , Multiplex Polymerase Chain Reaction/methods , SARS-CoV-2/genetics , SARS-CoV-2/isolation & purification , COVID-19/diagnosis , COVID-19/virology , Severe acute respiratory syndrome-related coronavirus/genetics , Severe acute respiratory syndrome-related coronavirus/isolation & purification , RNA, Viral/genetics , Real-Time Polymerase Chain Reaction/methods
13.
J Obstet Gynaecol ; 44(1): 2359671, 2024 Dec.
Article in English | MEDLINE | ID: mdl-38818700

ABSTRACT

BACKGROUND: To investigate the association between gestational weight gain (GWG) and preterm birth (PTB) according to pre-pregnancy body mass index (pp-BMI) and glycated haemoglobin (HbA1c) within the normal range. METHODS: We conducted a population-based retrospective cohort study between July 2017 and January 2020 at Women's Hospital, Zhejiang University School of Medicine. Women were classified into three groups (inadequate GWG, appropriate GWG, and excessive GWG). In addition, women were divided into different subgroups according to pp-BMI and HbA1c. We estimated the odds ratios (OR) with 95% confidence intervals (CI) to assess the associations between GWG and the risk of PTB. Meanwhile, we adjusted for possible confounding factors, including maternal age, infant sex, family history of diabetes, education, pregnancy mode, delivery mode, parity, and gravidity. RESULTS: The study involved 23,699 pregnant women, of which 1124 (4.70%) were PTB. Women who had inadequate GWG were found to have a significantly higher risk of PTB compared to women with appropriate GWG. In contrast, women with excessive GWG had a reduced risk of PTB. Similarly, GWG and PTB had similar risk associations in the HbA1c and pp-BMI subgroups. Among women with pp-BMI <18.5 kg/m2, women with inadequate GWG had a significantly increased risk of PTB compared with women in the control group (HbA1c 4.6-5.0%, appropriate GWG), and the risk increased with increasing HbA1c levels. Similar results were observed in women with normal pp-BMI. CONCLUSIONS: There was a significant association between GWG and the risk of PTB, but the risk varied by pp-BMI and HbA1c levels. Reasonable weight gain during pregnancy is essential to prevent PTB. Furthermore, while HbA1c is within the normal range, the higher levels should be noticed.


Preterm birth (PTB) rates have recently increased in China, drawing increased attention from physicians and society. Even though various risk factors for PTB have been well known, risk factors for PTB still need to be explored. This study aimed to investigate the association between gestational weight gain (GWG) and preterm birth (PTB) according to pre-pregnancy body mass index (pp-BMI) and glycated haemoglobin (HbA1c) within the normal range. Our research revealed that the underweight (pp-BMI <18.5 kg/m2) and normal weight (pp-BMI 18.5­24.9 kg/m2) groups' risk of preterm birth increased with rising HbA1c levels when GWG was inadequate. Despite HbA1c within the normal range, higher levels of HbA1c should be considered. As a result, among women with inadequate GWG, high levels of HbA1c confer a higher risk of PTB, which could alert clinicians to carry out early intervention to prevent PTB.


Subject(s)
Body Mass Index , Gestational Weight Gain , Glycated Hemoglobin , Premature Birth , Humans , Female , Pregnancy , Glycated Hemoglobin/analysis , Adult , Retrospective Studies , Premature Birth/epidemiology , Premature Birth/blood , Premature Birth/etiology , Risk Factors , China/epidemiology
14.
World J Clin Cases ; 12(15): 2614-2620, 2024 May 26.
Article in English | MEDLINE | ID: mdl-38817231

ABSTRACT

BACKGROUND: The stent embedded in the esophageal mucosa is one of the complications after stenting for esophageal stricture. We present a case of stent adjustment with the aid of a transparent cap after endoscopic injection of an esophageal varices stent. CASE SUMMARY: A 61-year-old male patient came to the hospital with discomfort of the chest after the stent implanted for the stenosis because of endoscopic injection of esophageal varices. The gastroscopy was performed, and the stent embedded into the esophageal mucosa. At first, we pulled the recycling line for shrinking the stent, however, the mucosa could not be removed from the stent. Then a forceps was performed to remove the mucosa in the stent, nevertheless, the bleeding form the mucosa was obvious. And then, we used a transparent cap to scrape the mucosa along the stent, and the mucosa were removed successfully without bleeding. CONCLUSION: A transparent cap helps gastroscopy to remove the mucosa embedded in the stent after endoscopic injection of the esophageal varices stent.

15.
Front Neurol ; 15: 1380353, 2024.
Article in English | MEDLINE | ID: mdl-38798711

ABSTRACT

Background and aim: Traumatic brain injury (TBI), a leading cause of high morbidity and mortality, represents a significant global public health challenge. Currently, no effective treatment for TBI exists. Curcumin, an active compound extracted from the root of Curcuma longa, has demonstrated neuroprotective properties both in vitro and in vivo. Notably, it has shown potential in reducing oxidative stress and inflammation and enhancing redox balance. This paper conducts a systematic review and meta-analysis to explore curcumin's role in TBI animal models extensively. The findings offer valuable insights for future human clinical trials evaluating curcumin as a therapeutic supplement or nutraceutical in TBI management. Methods: Comprehensive literature searches were conducted across MEDLINE, Embase, Cochrane, Web of Science, and Google Scholar databases. These searches aimed to identify relevant manuscripts in all languages, utilizing the keywords "curcumin" and "traumatic brain injury." Results: The final quantitative analysis included 18 eligible articles corresponding to animal studies. The analysis revealed that curcumin significantly reduced inflammatory cytokines, including IL-1ß (p = 0.000), IL-6 (p = 0.002), and TNF-α (p = 0.000), across various concentrations, time points, and administration routes. Additionally, curcumin markedly enhanced the activity of oxidative stress markers such as SOD (p = 0.000), Sir2 (p = 0.000), GPx (p = 0.000), and Nrf2 (p = 0.000), while reducing MDA (p = 0.000), 4-HNE (p = 0.001), and oxyprotein levels (p = 0.024). Furthermore, curcumin improved cerebral edema (p = 0.000) and upregulated neuroprotective factors like synapsin I (p = 0.019), BDNF (p = 0.000), and CREB (p = 0.000), without reducing mNSS (p = 0.144). About autophagy and apoptosis, curcumin increased the activity of Beclin-1 (p = 0.000) and Bcl-2 (p = 0.000), while decreasing caspase-3 (p = 0.000), the apoptosis index (p = 0.000), and P62 (p = 0.002). Conclusion: Curcumin supplementation positively affects traumatic brain injury (TBI) by alleviating oxidative stress and inflammatory responses and promoting neuroprotection. It holds potential as a therapeutic agent for human TBI. However, this conclusion necessitates further substantiation through high-quality literature and additional randomized controlled trials (RCTs). Systematic Review Registration: https://www.crd.york.ac.uk/prospero/. The registration number of PROSPERO: CRD42023452685.

16.
Integr Med Res ; 13(2): 101046, 2024 Jun.
Article in English | MEDLINE | ID: mdl-38799119

ABSTRACT

Background: To refine the methods of developing clinical practice guidelines (CPGs) for integrative Chinese-Western medicine (ICWM), promoting the formation of trustworthy, implementable recommendations that integrate the strengths of Chinese and Western medicine. Methods: Using a nominal group technique (NGT) approach, a multidisciplinary expert panel was established. The panel identified key methodological issues in ICWM-CPG development through literature review and iterative discussions, and formulated methodological proposals to address these issues. The final set of proposals was achieved through consensus among the panel members. Results: The collaborative effort resulted in the identification of five pivotal methodological issues and the subsequent establishment of 22 specific recommendations. These encompass strict adherence to renowned standards, such as those proposed by the Institute of Medicine (IOM) and Guidelines International Network (G-I-N), the employment of methodologies like the GRADE approach and RIGHT statement, the strategic constitution of a balanced development group, the adept identification of ICWM-focused clinical inquiries, the nuanced integration of diverse evidence sources, and the detailed crafting of transparent, implementable recommendations. Conclusions: This study concentrates on the most crucial and prevalent methodological issues in ICWM-CPG development, proposing a series of recommendations. These suggestions result from a multidisciplinary expert consensus, aiming to provide methodological guidance for ICWM-CPG developers, building upon the current foundational methodologies.

17.
Micromachines (Basel) ; 15(5)2024 May 19.
Article in English | MEDLINE | ID: mdl-38793236

ABSTRACT

Chikungunya virus, a mosquito-borne virus that causes epidemics, is often misdiagnosed due to symptom similarities with other arboviruses. Here, a portable and integrated nucleic acid-based diagnostic device, which combines reverse transcription-loop-mediated isothermal amplification and lateral-flow detection, was developed. The device is simple to use, precise, equipment-free, and highly sensitive, enabling rapid chikungunya virus identification. The result can be obtained by the naked eye within 40 min. The assay can effectively distinguish chikungunya virus from dengue virus, Japanese encephalitis virus, Zika virus, and yellow fever virus with high specificity and sensitivity as low as 598.46 copies mL-1. It has many benefits for the community screening and monitoring of chikungunya virus in resource-limited areas because of its effectiveness and simplicity. The platform has great potential for the rapid nucleic acid detection of other viruses.

18.
Int J Infect Dis ; 144: 107055, 2024 Jul.
Article in English | MEDLINE | ID: mdl-38723889

ABSTRACT

OBJECTIVES: To investigate cases of five Campylobacter jejuni outbreaks and describe laboratory characteristics of these infections. METHODS: Whole-genome sequencing and conventional methods were combined to thoroughly investigate the outbreaks, and data of contemporaneous sporadic cases was included for comparison. RESULTS: Seven sequence types (STs) of C. jejuni caused 83 cases, including ST9079 which recurred across 2 years. Trace-back investigation could not identify any food items of infection but detected identical campylobacters from food contacts. Phylogenetic analysis unveiled genetic closeness between outbreak strains and some concurrent sporadic strains, indicating local campylobacteriosis may not be wholly sporadic but rather a series of linked cases. Virulence genes disclosed species/case-specific signatures to differentiate outbreaks from truly non-outbreak strains. Resistance to fluoroquinolones and/or macrolides was prevalent (90.8%, 108/119), with a noteworthy portion exhibiting multidrug resistance (31.1%, 37/119). Five types of plasmids were harbored among outbreak isolates, of which one plasmid harboring anti-stress and resistant genes was rarely found in C. jejuni. CONCLUSIONS: This is the first reported sequential outbreak of C. jejuni in China. Our observations help to define the genomic landscape and antimicrobial resistance patterns of Campylobacter, emphasizing the need for a broader 'One Health' perspective to combat the threats posed by campylobacteriosis.


Subject(s)
Anti-Bacterial Agents , Campylobacter Infections , Campylobacter jejuni , Disease Outbreaks , Phylogeny , Whole Genome Sequencing , Campylobacter jejuni/genetics , Campylobacter jejuni/drug effects , Campylobacter jejuni/isolation & purification , Campylobacter jejuni/classification , Humans , China/epidemiology , Campylobacter Infections/epidemiology , Campylobacter Infections/microbiology , Adult , Child , Male , Female , Anti-Bacterial Agents/pharmacology , Adolescent , Middle Aged , Drug Resistance, Multiple, Bacterial/genetics , Young Adult , Child, Preschool , Microbial Sensitivity Tests , Plasmids/genetics , Genome, Bacterial
19.
Br J Ophthalmol ; 2024 May 14.
Article in English | MEDLINE | ID: mdl-38749530

ABSTRACT

BACKGROUND/AIMS: To distinguish the clinical feature of nanophthalmos (NNO) caused by mutations in protease serine 56 (PRSS56), membrane-type frizzled-related protein (MFRP), myelin regulatory factor (MYRF) and transmembrane protein 98 (TMEM98) and to evaluate the association between angle-closure glaucoma (ACG) and NNO. METHODS: Variants in those four genes were identified through exome sequencing/whole genome sequencing data, and bioinformatic analysis was conducted to identify pathogenic/likely pathogenic (P/LP) variants. This observational study comprehensively summarised ophthalmological data of 67 patients with NNO from 63 families. Ocular parameters from 68 eyes without surgical treatment were subjected to further analysis. RESULTS: Totally, 67 patients from 63 families harboured 57 P/LP variants in the four genes, including 30 in PRSS56 (47.6%), 23 in MFRP (36.5%), 5 in TMEM98 (7.9%) and 5 in MYRF (7.9%). ACG was present in 79.1% of patients. An analysis of ocular parameters from 68 eyes revealed that shorter axial length (AL), lower vitreous-to-AL ratios and severe foveal hypoplasia were associated with variants in PRSS56 and MFRP. Uveal effusion was more common in patients with PRSS56 variants, while retinitis pigmentosa was frequently observed in patients with MFRP variants. Patients with MYRF variants exhibited the thinnest retinal nerve fibre layer thickness. Patients with TMEM98 variants had an earlier average onset age of glaucoma. CONCLUSION: Variants in PRSS56 and MFRP are the most common genetic cause of NNO. ACG is a severe complication frequently observed in these patients. Earlier onset of ACG is observed in patients with dominant NNO, while foveal hypoplasia is more common in patients with recessive disease. Recognising these features is helpful in clinical care and genetic counselling.

20.
PNAS Nexus ; 3(2): pgae056, 2024 Feb.
Article in English | MEDLINE | ID: mdl-38725533

ABSTRACT

It has been proposed that biologically generated turbulence plays an important role in material transport and ocean mixing. Both experimental and numerical studies have reported evidence of the nonnegligible mixing by moderate Reynolds number swimmers, such as zooplankton, in quiescent water, especially at aggregation scales. However, the interaction between biologically generated agitation and the background flow, as a key factor in biologically generated turbulence that could reshape our previous knowledge of biologically generated turbulence, has long been ignored. Here, we show that the geometry between the biologically generated agitation and the background hydrodynamic shear can determine both the intensity and direction of biologically generated turbulent energy flux. Measuring the migration of a centimeter-scale swimmer-as represented by the brine shrimp Artemia salina-in a shear flow and verifying through an analog experiment with an artificial jet revealed that different geometries between the biologically generated agitation and the background shear can result in spectral energy transferring toward larger or smaller scales, which consequently intensifies or attenuates the large-scale hydrodynamic shear. Our results suggest that the long ignored geometry between the biologically generated agitation and the background flow field is an important factor that should be taken into consideration in future studies of biologically generated turbulence.

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