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1.
EJNMMI Radiopharm Chem ; 9(1): 67, 2024 Sep 16.
Artículo en Inglés | MEDLINE | ID: mdl-39283414

RESUMEN

BACKGROUND: The Editorial Board of EJNMMI Radiopharmacy and Chemistry releases a biannual highlight commentary to update the readership on trends in the field of radiopharmaceutical development. MAIN BODY: This selection of highlights provides commentary on 19 different topics selected by each coauthoring Editorial Board member addressing a variety of aspects ranging from novel radiochemistry to first-in-human application of novel radiopharmaceuticals. CONCLUSION: Trends in radiochemistry and radiopharmacy are highlighted. Hot topics cover the entire scope of EJNMMI Radiopharmacy and Chemistry, demonstrating the progress in the research field in many aspects.

2.
PLoS One ; 19(9): e0308801, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-39292682

RESUMEN

BACKGROUND: Acute lumbar sprain (ALS) is common musculoskeletal disorder characterized by severe low back pain and activity limitation, which significantly impacts the patient's work and life. Immediate relief of pain and restoration of mobility in a short period of time are the main needs of patients when they visit the clinic. This study aims to evaluate the immediate efficacy of this combined treatment for ALS within 10 minutes. METHODS: This is a single-center, prospective, randomized clinical trial. 128 eligible patients with ALS will be randomly allocated in a 1:1 ratio to either the auricular acupuncture (AA) group or the sham auricular acupuncture (SAA) group. All patients will receive a single 10-minute treatment. The primary outcome will be the change in pain intensity after 10 minutes of treatment. The secondary outcomes include changes in pain intensity at other time points (2, 5 minutes), changes in lumbar range of motion (ROM) at different time points, blinded assessment, treatment effect expectancy scale evaluation, and treatment satisfaction scale evaluation. All participants will be included in the analysis according to the intention-to-treat principle. DISCUSSION: This is the first randomized controlled trial to assess the immediate efficacy of AA combined with active exercise for ALS. The findings of this study are expected to provide a simple and rapid treatment for ALS in clinical. TRIAL REGISTRATION: Chinese Clinical Trial Registry ChiCTR2400083740. Registered 30 April 2024.


Asunto(s)
Acupuntura Auricular , Terapia por Ejercicio , Humanos , Adulto , Masculino , Femenino , Acupuntura Auricular/métodos , Persona de Mediana Edad , Terapia por Ejercicio/métodos , Dolor de la Región Lumbar/terapia , Resultado del Tratamiento , Esguinces y Distensiones/terapia , Estudios Prospectivos , Región Lumbosacra , Rango del Movimiento Articular , Adulto Joven , Adolescente , Terapia Combinada , Vértebras Lumbares/fisiopatología , Dimensión del Dolor
3.
Proc Natl Acad Sci U S A ; 121(39): e2403721121, 2024 Sep 24.
Artículo en Inglés | MEDLINE | ID: mdl-39298486

RESUMEN

Knots containing metal atoms as part of their continuous strand backbone are termed as metallaknots. While several metallaknots have been synthesized through one-pot self-assembly, the designed synthesis of metallaknots by controlling the arrangement of entanglements and strands connectivity remains unexplored. Here, we report the synthesis of metallaknots composed with Au(I)-bis(acetylide) linkages and templated by Cu(I) ions. Varying the ratio of the building blocks results in the switchable formation of two trefoil knots with different stoichiometries and symmetries (C2 or D3) and an entangled metalla-complex. While the entangled complex formed serendipitously, the strand ends can be subsequently linked through coordinative closure to generate a 41 metallaknot in a highly designable fashion. The comparable structural characteristics of resulting metalla-complexes allow us to probe the correlations between their topologies and photophysical properties, showing the backbone rigidity of knots endows complexes with excellent phosphorescent properties. This strategy, in conjunction with the coordinative closure approach, provides a straightforward route for the formation of highly phosphorescent metallaknots that were previously challenging to access.

4.
World J Clin Cases ; 12(25): 5739-5748, 2024 Sep 06.
Artículo en Inglés | MEDLINE | ID: mdl-39247740

RESUMEN

BACKGROUND: Gliomas are the most common primary central nervous system neoplasm. Despite recent advances in the diagnosis and treatment of gliomas, patient prognosis remains dismal. Therefore, it is imperative to identify novel diagnostic biomarkers and therapeutic targets of glioma to effectively improve treatment outcomes. AIM: To investigate the association between oligodendrocyte transcription factor 2 (Olig2) expression and the outcomes of glioma patients. METHODS: The PubMed, Embase, Cochrane Library, and China National Knowledge Infrastructure databases were searched for studies (published up to October 2023) that investigated the relationship between Olig2 expression and prognosis of glioma patients. The quality of the studies was assessed using the Newcastle Ottawa Scale. Data analyses were performed using Stata Version 12.0 software. RESULTS: A total of 1205 glioma patients from six studies were included in the meta-analysis. High Olig2 expression was associated with better outcomes in glioma patients [hazard ratio (HR): 0.81; 95% (confidence interval) CI: 0.51-1.27; P = 0.000]. Furthermore, the results of subgroup meta-analysis showed that high expression of Olig2 was associated with poor overall survival in European patients (HR: 1.34; 95%CI: 0.79-2.27) and better prognosis in Asian patients (HR: 0.43; 95%CI: 0.22-0.84). The sensitivity analysis showed that no single study had a significant effect on pooled HR, and there was also no indication of publication bias according to the Egger's and Begger's P value test or funnel plot test. CONCLUSION: High Olig2 expression may have a positive impact on the prognosis of glioma patients, and should be investigated further as a prognostic biomarker and therapeutic target for glioma.

5.
Artículo en Inglés | MEDLINE | ID: mdl-39271438

RESUMEN

BACKGROUND: The prevalence of Pneumocystis jirovecii (PJ) pneumonia among rheumatic patients is rising. PJ colonization serves as a reservoir for transmission and precedes the development of PJ pneumonia. We aim to clarify the association of PJ colonization in patients of rheumatoid arthritis (RA) treated with biologics or Janus kinase inhibitors (JAKi). METHODS: A prospective cohort study was performed from March 2021 to July 2022 in the rheumatology outpatient department of National Cheng Kung University Hospital. We obtained oral-wash samples from asymptomatic RA patients treated with biologic disease-modifying antirheumatic drugs (bDMARDs) and JAKi. A real-time quantitative polymerase chain reaction assay focusing on the mitochondrial large subunit ribosomal ribonucleic acid gene of PJ was applied to detect colonization. RESULTS: One hundred and ten RA patients were enrolled. Adjusted odds ratios (ORs) of PJ colonization were 6.40 (95% CI 1.34-30.57, p-value =0.02) in patients receiving bDMARDs or JAKi. Specifically, in patients treated with bDMARDs the adjusted OR was 8.08 (95% CI 1.57-41.51, p-value=0.012), and a trend toward developing PJ colonization was further identified in patients receiving JAKi (adjusted OR: 4.79, 95% CI 0.89-25.91, p=0.069). Among patients treated with bDMARDs or JAKi, medication duration >3 years and age >60 y/o are risk factors for PJ colonization. CONCLUSION: RA patients on bDMARDs or JAK inhibitors have an approximately 6-fold higher risk of developing P. jirovecii colonization. Patients treated with bDMARDs had an 8-fold higher risk of P. jirovecii colonization. Risk factors of PJ colonization are medication duration >3 years and age > 60 y/o.

6.
Nat Commun ; 15(1): 7800, 2024 Sep 06.
Artículo en Inglés | MEDLINE | ID: mdl-39242511

RESUMEN

Dynamic tracking of spinal instrumentation could facilitate real-time evaluation of hardware integrity and in so doing alert patients/clinicians of potential failure(s). Critically, no method yet exists to continually monitor the integrity of spinal hardware and by proxy the process of spinal arthrodesis; as such hardware failures are often not appreciated until clinical symptoms manifest. Accordingly, herein, we report on the development and engineering of a bio-adhesive metal detector array (BioMDA), a potential wearable solution for real-time, non-invasive positional analyses of osseous implants within the spine. The electromagnetic coupling mechanism and intimate interfacial adhesion enable the precise sensing of the metallic implants position without the use of radiation. The customized decoupling models developed facilitate the precise determination of the horizontal and vertical positions of the implants with incredible levels of accuracy (e.g., <0.5 mm). These data support the potential use of BioMDA in real-time/dynamic postoperative monitoring of spinal implants.


Asunto(s)
Metales , Prótesis e Implantes , Columna Vertebral , Dispositivos Electrónicos Vestibles , Humanos , Columna Vertebral/cirugía , Metales/química , Adhesivos , Fusión Vertebral/instrumentación , Fusión Vertebral/métodos
7.
Phytomedicine ; 133: 155948, 2024 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-39153276

RESUMEN

BACKGROUND: The incidence of invasive fungal diseases (IFDs), represented by Candida albicans infection, is increasing year by year. However, clinically available antifungal drugs are very limited and encounter challenges such as limited efficacy, drug resistance, high toxicity, and exorbitant cost. Therefore, there is an urgent need for new antifungal drugs. PURPOSE: This study aims to find new antifungal compounds from plants, preferably those with good activity and low toxicity, and reveal their antifungal targets. METHODS: In vitro antifungal activities of compounds were investigated using broth microdilution method, spot assay, hyphal growth assay and biofilm formation assay. Synergistic effects were assessed using broth microdilution checkerboard technique. In vivo antifungal activities were evaluated using Galleria mellonella and murine candidiasis models. Cytotoxicity of compounds was investigated using Cell Counting Kit-8 (CCK-8). Discovery and validation of antifungal targets of compounds were conducted by using monoallelic knockout library of C. albicans, haploinsufficiency profiling (HIP), thermal shift assay (TSA), enzyme inhibitory effect assay, molecular docking, and in vitro and in vivo antifungal studies. RESULTS: 814 plant products were screened, among which petroselinic acid (PeAc) was found as an antifungal molecule. As a rare fatty acid isolated from coriander (Coriandrum sativum), carrot (Daucus carota) and other plants of the Apiaceae family, PeAc had not previously been found to have antifungal effects. In this study, PeAc was revealed to inhibit the growth of various pathogenic fungi, exhibited synergistic effects with fluconazole (FLC), inhibited the formation of C. albicans hyphae and biofilms, and showed antifungal effects in vivo. PeAc was less toxic to mammalian cells. Fructose-1,6-bisphosphate aldolase (Fba1p) was identified as a target of PeAc by using HIP, TSA, enzyme inhibitory effect assay and molecular docking methods. PeAc exerted antifungal effects more effectively on fba1Δ/FBA1 than wild-type (WT) strain both in vitro and in vivo. CONCLUSIONS: PeAc is an effective and low toxic antifungal compound. The target of PeAc is Fba1p. Fba1p is a promising target for antifungal drug development.


Asunto(s)
Antifúngicos , Candida albicans , Candidiasis , Fructosa-Bifosfato Aldolasa , Pruebas de Sensibilidad Microbiana , Simulación del Acoplamiento Molecular , Antifúngicos/farmacología , Antifúngicos/química , Animales , Candida albicans/efectos de los fármacos , Ratones , Fructosa-Bifosfato Aldolasa/metabolismo , Candidiasis/tratamiento farmacológico , Biopelículas/efectos de los fármacos , Sinergismo Farmacológico , Hifa/efectos de los fármacos , Petroselinum/química , Mariposas Nocturnas/efectos de los fármacos , Modelos Animales de Enfermedad
8.
Chem Soc Rev ; 53(17): 8632-8712, 2024 Aug 27.
Artículo en Inglés | MEDLINE | ID: mdl-39132912

RESUMEN

Bioelectronics is a hot research topic, yet an important tool, as it facilitates the creation of advanced medical devices that interact with biological systems to effectively diagnose, monitor and treat a broad spectrum of health conditions. Electrical stimulation (ES) is a pivotal technique in bioelectronics, offering a precise, non-pharmacological means to modulate and control biological processes across molecular, cellular, tissue, and organ levels. This method holds the potential to restore or enhance physiological functions compromised by diseases or injuries by integrating sophisticated electrical signals, device interfaces, and designs tailored to specific biological mechanisms. This review explains the mechanisms by which ES influences cellular behaviors, introduces the essential stimulation principles, discusses the performance requirements for optimal ES systems, and highlights the representative applications. From this review, we can realize the potential of ES based bioelectronics in therapy, regenerative medicine and rehabilitation engineering technologies, ranging from tissue engineering to neurological technologies, and the modulation of cardiovascular and cognitive functions. This review underscores the versatility of ES in various biomedical contexts and emphasizes the need to adapt to complex biological and clinical landscapes it addresses.


Asunto(s)
Estimulación Eléctrica , Humanos , Animales , Ingeniería de Tejidos , Materiales Biocompatibles/química , Medicina Regenerativa
9.
Transl Neurodegener ; 13(1): 39, 2024 Aug 02.
Artículo en Inglés | MEDLINE | ID: mdl-39095921

RESUMEN

BACKGROUND: Deoxyribonuclease 2 (DNase II) plays a key role in clearing cytoplasmic double-stranded DNA (dsDNA). Deficiency of DNase II leads to DNA accumulation in the cytoplasm. Persistent dsDNA in neurons is an early pathological hallmark of senescence and neurodegenerative diseases including Alzheimer's disease (AD). However, it is not clear how DNase II and neuronal cytoplasmic dsDNA influence neuropathogenesis. Tau hyperphosphorylation is a key factor for the pathogenesis of AD. The effect of DNase II and neuronal cytoplasmic dsDNA on neuronal tau hyperphosphorylation remains unclarified. METHODS: The levels of neuronal DNase II and dsDNA in WT and Tau-P301S mice of different ages were measured by immunohistochemistry and immunolabeling, and the levels of DNase II in the plasma of AD patients were measured by ELISA. To investigate the impact of DNase II on tauopathy, the levels of phosphorylated tau, phosphokinase, phosphatase, synaptic proteins, gliosis and proinflammatory cytokines in the brains of neuronal DNase II-deficient WT mice, neuronal DNase II-deficient Tau-P301S mice and neuronal DNase II-overexpressing Tau-P301S mice were evaluated by immunolabeling, immunoblotting or ELISA. Cognitive performance was determined using the Morris water maze test, Y-maze test, novel object recognition test and open field test. RESULTS: The levels of DNase II were significantly decreased in the brains and the plasma of AD patients. DNase II also decreased age-dependently in the neurons of WT and Tau-P301S mice, along with increased dsDNA accumulation in the cytoplasm. The DNA accumulation induced by neuronal DNase II deficiency drove tau phosphorylation by upregulating cyclin-dependent-like kinase-5 (CDK5) and calcium/calmodulin activated protein kinase II (CaMKII) and downregulating phosphatase protein phosphatase 2A (PP2A). Moreover, DNase II knockdown induced and significantly exacerbated neuron loss, neuroinflammation and cognitive deficits in WT and Tau-P301S mice, respectively, while overexpression of neuronal DNase II exhibited therapeutic benefits. CONCLUSIONS: DNase II deficiency and cytoplasmic dsDNA accumulation can initiate tau phosphorylation, suggesting DNase II as a potential therapeutic target for tau-associated disorders.


Asunto(s)
Enfermedad de Alzheimer , Endodesoxirribonucleasas , Neuronas , Proteínas tau , Animales , Proteínas tau/metabolismo , Proteínas tau/genética , Fosforilación , Ratones , Neuronas/metabolismo , Neuronas/patología , Humanos , Enfermedad de Alzheimer/genética , Enfermedad de Alzheimer/metabolismo , Enfermedad de Alzheimer/psicología , Enfermedad de Alzheimer/patología , Endodesoxirribonucleasas/genética , Endodesoxirribonucleasas/deficiencia , Endodesoxirribonucleasas/metabolismo , Ratones Transgénicos , ADN/genética , Masculino , Femenino , Encéfalo/metabolismo , Encéfalo/patología , Ratones Endogámicos C57BL
10.
Artículo en Inglés | MEDLINE | ID: mdl-39090823

RESUMEN

Early mortality experienced by people living with mental health issues (hereon termed consumers) is largely preventable. Healthcare professionals perceive healthcare system inadequacies such as diagnostic overshadowing, stigma and fragmentation of physical and mental healthcare services can be resolved through effective integration approaches. Service- and individual-level integration approaches involve multidisciplinary teams collaborating and coordinating care to holistically meet consumers' physical and mental health needs. Evidence suggests appropriately trained healthcare professionals can deliver effective integrated treatment without financial or organisational restructuring. Specialist nursing positions such as Physical Health Nurse Consultants can support and integrate physical and mental health care. Consumers report the Physical Health Nurse Consultant as providing dedicated, integrated, coordinated and holistic mental and physical health care. This study aimed to explore the Physical Health Nurse Consultant role from the perspectives of healthcare professionals. A qualitative exploratory study design was used. Fourteen healthcare professionals participated in individual interviews or focus groups. Interview recordings were transcribed, and thematically analysed. Three themes were identified: (i) role functions, including integration of physical and mental health care, (ii) impact on consumer physical health outcomes and (iii) impact on service delivery. Healthcare professionals perceive the Physical Health Nurse Consultant effectively integrates physical and mental health care and subsequently support the continuation and embedding of the role in routine practice. Future research is required to explore healthcare professionals' experiences and perceptions of how these roles be translated to routine clinical practice. Examining the professional development requirements, service provider constraints and economic implication to achieve these outcomes also warrants attention.

11.
Huan Jing Ke Xue ; 45(8): 4894-4903, 2024 Aug 08.
Artículo en Chino | MEDLINE | ID: mdl-39168705

RESUMEN

Maize-soybean compound intercropping has the potential to increase yield and is being tested for spreading in Huang-Huai-hai Plain. However, the main regulatory regions of this cropping pattern on soil microbial communities have not been clarified. In the present study, the tested samples were collected from three maize root zones of bulk soil, rhizosphere soil, and roots under mono- and intercropping planting modes, respectively. The non-rhizosphere soil chemical properties and enzyme activities were determined, and bacterial communities were characterized using high-throughput sequencing of the 16S rRNA gene V3-V4 region. Compared with monocropping, the maize bulk soil electric conductivity (EC), soil organic matter (SOM), available potassium (AK), available phosphorus (AP), total nitrogen (TN), and enzyme activities of intercropping were significantly increased. The α diversities and ß diversity of the bacterial community in rhizosphere soil were significantly different between the two planting modes. There were 11 bacteria genera with significantly higher abundance in the rhizosphere soil of compound planting than that of monoculture, and TN, AP, and catalase were the three most important factors contributing to their distribution. The abundances of 8 genera among the 11 genera mentioned above, unclassified Vicinamibacterales, unclassified Geminicoccaceae, MND1, unclassified Gemmatimonadaceae, Acidibacter, unclassified Vicinamibacteraceae, Sphingomonas, and unclassified Comamonadaceae were significantly positively correlated with TN. As for the bacteria distribution in maize root, AK contributed the most and had a significantly negative correlation with unclassified Rhizobiaceae and unclassified Microscillaceae and a positive correlation with Haliangium. Maize-soybean compound intercropping affected mainly the bacterial community of maize rhizosphere and had an evident effect on soil fertilizer cultivation and microbial diversity regulation, which provides a theoretical basis and practical guidance for rational intercropping to maintain agroecosystem biodiversity.


Asunto(s)
Agricultura , Bacterias , Glycine max , Raíces de Plantas , Rizosfera , Microbiología del Suelo , Zea mays , Zea mays/crecimiento & desarrollo , Zea mays/microbiología , Glycine max/crecimiento & desarrollo , Glycine max/microbiología , Bacterias/clasificación , Bacterias/genética , Bacterias/crecimiento & desarrollo , Bacterias/aislamiento & purificación , Raíces de Plantas/microbiología , Raíces de Plantas/crecimiento & desarrollo , Agricultura/métodos , ARN Ribosómico 16S/genética , Microbiota , Suelo/química , Producción de Cultivos/métodos
13.
Sci Rep ; 14(1): 18547, 2024 08 09.
Artículo en Inglés | MEDLINE | ID: mdl-39122810

RESUMEN

Observational studies have shown that non-alcoholic fatty liver disease (NAFLD) is strongly associated with metabolic dysfunction. However, there is a paucity of research on whether changes in indicators of serum metabolism contribute to the development of NAFLD. This study was conducted with 4084 participants who underwent healthy physical examinations at Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, China, in 2022 and 2023. Baseline and follow-up measurements, including anthropometric data, abdominal ultrasound and blood samples were collected. The diagnosis of NAFLD was based on the 2010 Chinese Guidelines on Diagnosis and Treatment of NAFLD. Multiple logistic regression was utilized to analyze the odds ratios (ORs) for the 1-year risk of NAFLD in connection with both baseline metabolic indicators and changes in metabolic indicators observed over the course of 1 year. A total of 3425 study participants who were free of NAFLD at baseline, including 1146 men and 2279 women, were included in the final analysis. The mean age was 34.43 ± 7.20 years. Participants who developed NAFLD were older, male and had higher levels of body mass index (BMI), blood pressure, fasting blood glucose (FBG), triglyceride (TG), total cholesterol (TC), low-density lipoprotein cholesterol (LDL-C), free triiodothyronine (fT3), uric acid (UA), alanine aminotransferase (ALT) and aspartate aminotransferase (AST); and lower levels of high-density lipoprotein cholesterol (HDL-C) and free thyroxine (fT4) (all P values < 0.05). The multivariable model showed that baseline BMI, diastolic blood pressure (DBP), TG, TC, HDL-C, LDL-C, UA, fT4, fT3, ALT and changes in TG, HDL-C, and UA were associated with the 1-year risk of developing NAFLD. The risk of NAFLD increased by 56% [OR 1.56, 95% Confidence Interval (CI) 1.32-1.87] and 40% (OR 1.40, 95% CI 1.19-1.64) for each standard deviation (SD) increase in altered TG values (1.01 mmol/L) and altered UA values (55 µmol/L) respectively. Conversely, for each SD (0.27 mmol/L) increase in HDL-C change, the 1-year risk of incident NAFLD was reduced by 50% (OR 0.50, 95% CI 0.40-0.62). The present study suggested that increases in TG and UA, and decreases in HDL-C, significantly increase the risk of developing NAFLD. Therefore, more attention should be paid to these factors in the management and prevention of NAFLD.


Asunto(s)
Lípidos , Enfermedad del Hígado Graso no Alcohólico , Ácido Úrico , Humanos , Enfermedad del Hígado Graso no Alcohólico/sangre , Enfermedad del Hígado Graso no Alcohólico/epidemiología , Masculino , Femenino , Ácido Úrico/sangre , Adulto , China/epidemiología , Lípidos/sangre , Persona de Mediana Edad , Factores de Riesgo , Incidencia , Índice de Masa Corporal
14.
Biomed Environ Sci ; 37(8): 876-886, 2024 Aug 20.
Artículo en Inglés | MEDLINE | ID: mdl-39198252

RESUMEN

Objective: The study aimed to investigate the impact of rare earth elements (REEs) exposure on pregnancy outcomes of in vitro fertilization-embryo transfer (IVF-ET) by analyzing samples from spouses. Methods: A total of 141 couples were included. Blood and follicular fluid from the wives and semen plasma from the husbands, were analyzed for REEs using inductively coupled plasma mass spectrometry (ICP-MS). Spearman's correlation coefficients and the Mann-Whitney U test were used to assess correlations and compare REE concentrations among three types of samples, respectively. Logistic models were utilized to estimate the individual REE effect on IVF-ET outcomes, while BKMR and WQS models explored the mixture of REE interaction effects on IVF-ET outcomes. Results: Higher La concentration in semen (median 0.089 ng/mL, P = 0.03) was associated with a lower fertilization rate. However, this effect was not observed after artificial selection intervention through intracytoplasmic sperm injection (ICSI) ( P = 0.27). In semen, the REEs mixture did not exhibit any significant association with clinical pregnancy. Conclusion: Our study revealed a potential association between high La exposure in semen and a decline in fertilization rate, but not clinical pregnancy rate. This is the first to report REEs concentrations in follicular fluid with La, Ce, Pr, and Nd found at significantly lower concentrations than in serum, suggesting that these four REEs may not accumulate in the female reproductive system. However, at the current exposure levels, mixed REEs exposure did not exhibit reproductive toxicity.


Asunto(s)
Transferencia de Embrión , Fertilización In Vitro , Metales de Tierras Raras , Humanos , Femenino , Adulto , Embarazo , Metales de Tierras Raras/análisis , Masculino , Beijing , Semen/química , Resultado del Embarazo , Líquido Folicular/química
15.
Poult Sci ; 103(9): 103991, 2024 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-38991387

RESUMEN

The S2 subunit of infectious bronchitis virus (IBV) is a heavily glycosylated protein that can impact various characteristics of the virus. It is currently known that N-glycosylation modifications are predominantly located on the S2 subunit. However, the exact role of their N-glycosylation modification remains undisclosed. To elucidate the function of these N-glycosylation sites, we identified 14 common sites distributed on the S2 subunit of the 5 genotypes of IBV in present study. Subsequently, we selected 7 sites to generate mutants and assessed their impact on viral virulence, replication ability, and antigenicity. Our finding revealed that only 2 substitutions, N545S and K717N, increased the viral replication titer and antigenicity, and ultimately the pathogenicity in chicks. To delve into the mechanisms underlying this increased pathogenicity, we discovered that K717N can change the structure of antigenic epitopes. The N545S substitution not only influenced antigenic epitope structure, but also enhanced the ability of the virus to enter CEKs during the early stages of viral replication. These results suggest that the enhanced viral pathogenicity associated with N545S and K717N substitutions is multifaceted, with acceleration of the viral membrane fusion process and alterations in epitope structure representing crucial factors in the capability of N-glycosylation modifications to boost viral virulence. These insights provide valuable guidance for the efficient development of live attenuated vaccines.


Asunto(s)
Pollos , Infecciones por Coronavirus , Virus de la Bronquitis Infecciosa , Enfermedades de las Aves de Corral , Virus de la Bronquitis Infecciosa/genética , Virus de la Bronquitis Infecciosa/patogenicidad , Virus de la Bronquitis Infecciosa/fisiología , Animales , Glicosilación , Enfermedades de las Aves de Corral/virología , Virulencia , Infecciones por Coronavirus/veterinaria , Infecciones por Coronavirus/virología , Replicación Viral , Sustitución de Aminoácidos
16.
Issues Ment Health Nurs ; 45(9): 979-989, 2024 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-39012920

RESUMEN

Mental health carers are crucial in improving the physical health outcomes of people diagnosed with a mental illness (hereafter referred to as consumers). The long-term and multifaceted mental and physical health support carers provide to consumers can contribute to caregiver burden. Consequently, carers advocate for coordinated and integrated physical healthcare to improve the physical health outcomes of consumers and alleviate caregiver burden. The aim of this qualitative exploratory study is to explore carers' perceptions and experiences with the Physical Health Nurse Consultant role. Semi-structured interviews with nine carers nominated by consumers were conducted. Interviews were transcribed and reflexively thematically analysed. Three main themes were identified: (i) Therapeutic relationship s were a catalyst for health behaviour change; (ii) Overt and covert positive changes were observed by carer and (iii) Cares' involvement in integrated mental health and physical health care. Nine carers who were nominated by consumers to be involved in their physical healthcare planning, preferred to adopt a supporting role as this prevented or reduced caregiver burden. The findings support the adoption and continuation of the Physical Health Nurse Consultant role to facilitate positive physical health outcomes for consumers and a reduction in caregiving burden. The benefits of the Physical Health Nurse Consultant provide a compelling argument to embed the role in routine practice. Mental healthcare services should advocate for continued funding and career development for such positions to provide long term benefits for consumers and carers. Future research is required to explore carer and consumer involvement in co-producing future and localised iterations of the Physical Health Nurse Consultant role. This research should also measure the outputs and outcomes of co-production to clarify how the process worked in practice.


Asunto(s)
Cuidadores , Consultores , Trastornos Mentales , Humanos , Trastornos Mentales/enfermería , Trastornos Mentales/psicología , Trastornos Mentales/terapia , Femenino , Masculino , Persona de Mediana Edad , Cuidadores/psicología , Adulto , Consultores/psicología , Investigación Cualitativa , Anciano
17.
Org Lett ; 26(31): 6637-6641, 2024 Aug 09.
Artículo en Inglés | MEDLINE | ID: mdl-39052993

RESUMEN

Starting with chiral vinyl sulfoxides and allenyl ketones or allenoates, a triflic acid-catalyzed asymmetric [3,3]-sigmatropic rearrangement of sulfoniums is reported to have a direct access to highly functionalized C4-chiral cyclopentenones (19 examples, up to 85% yield and >95% enantiomeric excesses). In addition to the use of these chiral compounds as key building blocks in organic synthesis, the antiproliferative activities of sulfoxide substrates and the corresponding cyclopentenones were evaluated, and promising cytotoxicity against the HL-60 human tumor cell line was found.

18.
Nutrients ; 16(14)2024 Jul 15.
Artículo en Inglés | MEDLINE | ID: mdl-39064717

RESUMEN

Diabetic retinopathy (DR), which can cause vision loss, may progress faster with poor glycemic control and oxidative stress. This study aims to examine how dietary patterns and glycemic control biomarkers relate to retinopathy risk in type 2 diabetes patients. In this study, we enrolled diabetic patients with retinopathy (DR) (n = 136) and without retinopathy (no DR) (n = 466) from a cohort of participants in the "Blood Pressure Control to Reduce the Risk of Type 2 Diabetic Nephropathy Study". Hemoglobin A1c (HbA1c) and malondialdehyde were defined as elevated when their levels reached ≥8.5% and ≥2/3 (16.2 µm), respectively. Dietary data were collected by a food frequency questionnaire. Dietary patterns were identified by factor analysis. Elevated HbA1c was significantly correlated with increased risk of DR (OR: 2.12, 95% CI: 1.14-3.93, p = 0.017). In subjects with a high animal protein and processed food dietary pattern (≥highest tertile score) or a low vegetable intake pattern (

Asunto(s)
Biomarcadores , Diabetes Mellitus Tipo 2 , Retinopatía Diabética , Dieta , Hemoglobina Glucada , Control Glucémico , Humanos , Diabetes Mellitus Tipo 2/sangre , Diabetes Mellitus Tipo 2/complicaciones , Masculino , Retinopatía Diabética/etiología , Retinopatía Diabética/epidemiología , Retinopatía Diabética/sangre , Femenino , Persona de Mediana Edad , Biomarcadores/sangre , Hemoglobina Glucada/análisis , Hemoglobina Glucada/metabolismo , Dieta/efectos adversos , Factores de Riesgo , Anciano , Malondialdehído/sangre , Glucemia/metabolismo , Conducta Alimentaria , Patrones Dietéticos
19.
Biosens Bioelectron ; 263: 116597, 2024 Nov 01.
Artículo en Inglés | MEDLINE | ID: mdl-39059179

RESUMEN

Traditional temporary cardiac pacemakers (TCPs), which employ transcutaneous leads and external wired power systems are battery-dependent and generally non-absorbable with rigidity, thereby necessitating surgical retrieval after therapy and resulting in potentially severe complications. Wireless and bioresorbable transient pacemakers have, hence, emerged recently, though hitting a bottleneck of unfavorable tissue-device bonding interface subject to mismatched mechanical modulus, low adhesive strength, inferior electrical performances, and infection risks. Here, to address such crux, we develop a multifunctional interface hydrogel (MIH) with superior electrical performance to facilitate efficient electrical exchange, comparable mechanical strength to natural heart tissue, robust adhesion property to enable stable device-tissue fixation (tensile strength: ∼30 kPa, shear strength of ∼30 kPa, and peel-off strength: ∼85 kPa), and good bactericidal effect to suppress bacterial growth. Through delicate integration of this versatile MIH with a leadless, battery-free, wireless, and transient pacemaker, the entire system exhibits stable and conformal adhesion to the beating heart while enabling precise and constant electrical stimulation to modulate the cardiac rhythm. It is envisioned that this versatile MIH and the proposed integration framework will have immense potential in overcoming key limitations of traditional TCPs, and may inspire the design of novel bioelectronic-tissue interfaces for next-generation implantable medical devices.


Asunto(s)
Hidrogeles , Marcapaso Artificial , Tecnología Inalámbrica , Hidrogeles/química , Animales , Humanos , Técnicas Biosensibles/instrumentación , Diseño de Equipo , Adhesivos/química
20.
BMJ Open ; 14(7): e080793, 2024 Jul 23.
Artículo en Inglés | MEDLINE | ID: mdl-39043589

RESUMEN

INTRODUCTION: Stiff neck is a condition mainly characterised by persistent pain and limited neck movement, which can substantially impact patients' daily lives during acute episodes. Accordingly, rapid pain relief and restoration of normal activities are the main needs of patients during doctor visits. This study aims to assess the immediate efficacy of acupuncture combined with active exercises in rapidly relieving pain and improving movement disorders within 10 min in patients with acute stiff neck (ASN). METHODS AND ANALYSIS: This randomised controlled clinical trial is being conducted at a single centre in China. 120 participants diagnosed with ASN will randomly be assigned in a 1:1:1 ratio to one of three groups: the acupuncture combined with active exercise group (group A), sham acupuncture combined with active exercise group (group B) and active exercise only group (group C). Each participant will undergo a single 10 min session. The primary outcome is the effective rate at 10 min of treatment. Secondary outcomes include the effective rate at other time points (0-1, 2, 4, 6 and 8 min), Visual Analogue Scale score and cervical range of motion. The intention-to-treat analysis will include all randomised participants. ETHICS AND DISSEMINATION: Ethics approval was obtained from the Ethics Committee of the Second Affiliated Hospital of Yunnan University of Chinese Medicine (2022-009). Written informed consent will be obtained from all participants before randomisation. The findings of this study will be disseminated through publication in a peer-reviewed journal and presentation at conferences. TRIAL REGISTRATION NUMBER: ChiCTR2200066997.


Asunto(s)
Terapia por Acupuntura , Terapia por Ejercicio , Dolor de Cuello , Humanos , Terapia por Acupuntura/métodos , Terapia por Ejercicio/métodos , Dolor de Cuello/terapia , Adulto , Femenino , Masculino , Trastornos del Movimiento/terapia , Persona de Mediana Edad , Rango del Movimiento Articular , Ensayos Clínicos Controlados Aleatorios como Asunto , Resultado del Tratamiento , China , Terapia Combinada , Dimensión del Dolor , Adulto Joven
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