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1.
PLoS Genet ; 18(1): e1009920, 2022 01.
Artículo en Inglés | MEDLINE | ID: mdl-35045067

RESUMEN

Insect nicotinic acetylcholine receptors (nAChRs) are pentameric ligand-gated ion channels mainly expressed in the central nervous system of insects. They are the directed targets of many insecticides, including neonicotinoids, which are the most widely used insecticides in the world. However, the development of resistance in pests and the negative impacts on bee pollinators affect the application of insecticides and have created a demand for alternatives. Thus, it is very important to understand the mode of action of these insecticides, which is not fully understood at the molecular level. In this study, we systematically examined the susceptibility of ten Drosophila melanogaster nAChR subunit mutants to eleven insecticides acting on nAChRs. Our results showed that there are several subtypes of nAChRs with distinct subunit compositions that are responsible for the toxicity of different insecticides. At least three of them are the major molecular targets of seven structurally similar neonicotinoids in vivo. Moreover, spinosyns may act exclusively on the α6 homomeric pentamers but not any other nAChRs. Behavioral assays using thermogenetic tools further confirmed the bioassay results and supported the idea that receptor activation rather than inhibition leads to the insecticidal effects of neonicotinoids. The present findings reveal native nAChR subunit interactions with various insecticides and have important implications for the management of resistance and the development of novel insecticides targeting these important ion channels.


Asunto(s)
Drosophila melanogaster/crecimiento & desarrollo , Insecticidas/farmacología , Mutación , Receptores Nicotínicos/genética , Animales , Proteínas de Drosophila/genética , Proteínas de Drosophila/metabolismo , Drosophila melanogaster/efectos de los fármacos , Drosophila melanogaster/metabolismo , Resistencia a los Insecticidas , Macrólidos/farmacología , Multimerización de Proteína , Receptores Nicotínicos/metabolismo
2.
Opt Express ; 32(6): 9837-9846, 2024 Mar 11.
Artículo en Inglés | MEDLINE | ID: mdl-38571208

RESUMEN

Obstruction is inevitable and will significantly impact the actual output performance of photovoltaic modules, even jeopardize their operational safety. We introduced a layer of bubbles into photovoltaic glass. These bubbles can alter the path of incident light, while the internal reflection at the glass/air interface enables the redirected light rays to have longer lateral propagation distance, circumventing the obstructions. The optimized photovoltaic glass with a bubble diameter of 1.8 mm and a surface density of 16 cm-2 enables the light intensity underneath a 6.6 × 6.6 cm2 obstruction to reach 21.83% of the incident light intensity. This enhancement permits a partial shading of the photovoltaic module, increasing its output power by ∼20.8% and decreasing the reverse bias voltage on the shaded cell by ∼1.4 V.

3.
Clin Lab ; 70(7)2024 Jul 01.
Artículo en Inglés | MEDLINE | ID: mdl-38965970

RESUMEN

BACKGROUND: In this study, we aimed to identify the hub genes responsible for increased vascular endothelial cell permeability. METHODS: We applied the weighted Gene Expression Omnibus (GEO) database to mine dataset GSE178331 and ob-tained the most relevant high-throughput sequenced genes for an increased permeability of vascular endothelial cells due to inflammation. We constructed two weighted gene co-expression network analysis (WGCNA) networks, and the differential expression of high-throughput sequenced genes related to endothelial cell permeability were screened from the GEO database. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analysis were performed on the differential genes. Their degree values were obtained from the topological properties of protein-protein interaction (PPI) networks of differential genes, and the hub genes associated with an increased endothelial cell permeability were analyzed. Reverse transcription-polymerase chain reaction (RT-PCR) and western blotting techniques were used to detect the presence of these hub genes in TNF-α induced mRNA and the protein expression in endothelial cells. RESULTS: In total, 1,475 differential genes were mainly enriched in the cell adhesion and TNF-α signaling pathway. With TNF-α inducing an increase in the endothelial cell permeability and significantly increasing mRNA and protein expression levels, we identified three hub genes, namely PTGS2, ICAM1, and SNAI1. There was a significant difference in the high-dose TNF-α group and in the low-dose TNF-α group compared to the control group, in the endothelial cell permeability experiment (p = 0.008 vs. p = 0.02). Measurement of mRNA and protein levels of PTGS2, ICAM1, and SNAI1 by western blotting analysis showed that there was a significant impact on TNF-α and that there was a significant dose-dependent relationship (p < 0.05 vs. p < 0.01). CONCLUSIONS: The three hub genes identified through bioinformatics analyses in the present study may serve as biomarkers of increased vascular endothelial cell permeability. The findings offer valuable insights into the progress and mechanism of vascular endothelial cell permeability.


Asunto(s)
Biología Computacional , Células Endoteliales , Redes Reguladoras de Genes , Mapas de Interacción de Proteínas , Factor de Necrosis Tumoral alfa , Humanos , Biología Computacional/métodos , Factor de Necrosis Tumoral alfa/genética , Factor de Necrosis Tumoral alfa/metabolismo , Células Endoteliales/metabolismo , Perfilación de la Expresión Génica/métodos , Ciclooxigenasa 2/genética , Ciclooxigenasa 2/metabolismo , Permeabilidad Capilar , Transducción de Señal , Bases de Datos Genéticas , Molécula 1 de Adhesión Intercelular/genética , Molécula 1 de Adhesión Intercelular/metabolismo , Factores de Transcripción de la Familia Snail/genética , Factores de Transcripción de la Familia Snail/metabolismo , Células Endoteliales de la Vena Umbilical Humana/metabolismo , Ontología de Genes
4.
BMC Geriatr ; 24(1): 243, 2024 Mar 11.
Artículo en Inglés | MEDLINE | ID: mdl-38468239

RESUMEN

BACKGROUND: With the growing challenge of an aging population, emerging technologies are increasingly being integrated into the production, organization, and delivery of aged care services. Geographic Information System (GIS), a computer-based tool for spatial information analysis and processing, has made significant strides in the allocation of care recources and service delivery for older adults, a notably vulnerable group. Despite its growing importance, cross-disciplinary literature reviews on this theme are scare. This scoping review was conducted to encapsulate the advancements and discern the future trajectory of GIS applications in aged care services. METHODS: A comprehensive search across nine databases yielded 5941 articles. Adhering to specific inclusion and exclusion criteria, 61 articles were selected for a detailed analysis. RESULTS: The 61 articles span from 2003 to 2022, with a notable increase in publications since 2018, comprising 41 articles (67% of the total) published between 2018-2022. Developed countries contributed 66% of the papers, with 45% focusing on accessibility issues. In the domain of aged care services, GIS has been predominantly utilized for model construction, mapping, and site selection, with a growing emphasis on addressing the unique needs of different subgroups of older adults. CONCLUSION: The past two decades have seen substantial growth in the application of GIS in aged care services, reflecting its increasing importance in this field. This scoping review not only charts the historical development of GIS applications in aged care services but also underscores the need for innovative research approaches. Future directions should emphasize the integration of GIS with diverse methodologies to address the heterogeneous needs of older adults and improve the overall delivery of aged care services. Such advancements in GIS applications have the potential to significantly enhance the efficiency, accessibility, and quality of care for the aging population.


Asunto(s)
Sistemas de Información Geográfica , Grupos de Población , Humanos , Anciano
5.
Geriatr Nurs ; 57: 224-231, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38696880

RESUMEN

The factors that affect resident satisfaction with emerging residential integrated care for older people in China have been unclear due to a lack of validated instruments. Based on psychometric assessment procedures, we developed a new scale for older resident satisfaction with residential integrated care (SORSRIC). The scale was developed using a two-step process and a sample of 16 Chinese institutions and 333 residents. Exploratory and confirmatory factor analysis was used to evaluate reliability and validity. Principal component analysis and maximum variance methods were used to orthogonally rotate the items to extract seven factors. These were: resident expectations, perceived quality (physical care), perceived quality (mental care), perceived value, resident satisfaction, resident complaints, and resident loyalty. The CR value of each dimension of the pre-tested, formal scale was greater than 0.80, and the AVE value was greater than 0.50. This 24-item instrument showed good reliability and structural validity and can be applied to improve the experience and outcomes for older people in residential care.


Asunto(s)
Psicometría , Humanos , China , Masculino , Femenino , Anciano , Reproducibilidad de los Resultados , Encuestas y Cuestionarios , Satisfacción del Paciente , Anciano de 80 o más Años
6.
J Cell Physiol ; 238(5): 866-879, 2023 05.
Artículo en Inglés | MEDLINE | ID: mdl-36890781

RESUMEN

Atherosclerosis (AS), a chronic inflammatory vascular disease with lipid metabolism abnormalities, is one of the major pathological bases of coronary heart disease. As people's lifestyles and diets change, the incidence of AS increases yearly. Physical activity and exercise training have recently been identified as effective strategies for lowering cardiovascular disease (CVD) risk. However, the best exercise mode to ameliorate the risk factors related to AS is not clear. The effect of exercise on AS is affected by the type of exercise, intensity, and duration. In particular, aerobic and anaerobic exercise are the two most widely discussed types of exercise. During exercise, the cardiovascular system undergoes physiological changes via various signaling pathways. The review aims to summarize signaling pathways related to AS in two different exercise types and provide new ideas for the prevention and treatment of AS in clinical practice.


Asunto(s)
Aterosclerosis , Sistema Cardiovascular , Humanos , Anaerobiosis , Ejercicio Físico/fisiología , Aterosclerosis/terapia , Terapia por Ejercicio
7.
Hum Brain Mapp ; 44(15): 5002-5012, 2023 10 15.
Artículo en Inglés | MEDLINE | ID: mdl-37539805

RESUMEN

To explore the functional changes of the frontal eye field (FEF) and relevant brain regions and its role in the pathogenesis of intermittent exotropia (IXT) children via functional magnetic resonance imaging (fMRI). Twenty-four IXT children (mean age, 11.83 ± 1.93 years) and 28 normal control (NC) subjects (mean age, 11.11 ± 1.50 years) were recruited. During fMRI scans, the IXT children and NCs were provided with static visual stimuli (to evoke sensory fusion) and dynamic visual stimuli (to evoke motor fusion and vergence eye movements) with binocular disparity. Brain activation in the relevant brain regions and clinical characteristics were evaluated. Group differences of brain activation and brain-behavior correlations were investigated. For dynamic and static visual disparity relative to no visual disparity, reduced brain activation in the right FEF and right inferior occipital gyrus (IOG), and increased brain activation in the left middle temporal gyrus complex (MT+) were found in the IXT children compared with NCs. Significant positive correlations between the fusional vergence amplitude and the brain activation values were found in the right FEF, right IPL, and left cerebellum in the NC group. Positive correlations between brain activation values and Newcastle Control Scores (NCS) were found in the left MT+ in the IXT group. For dynamic visual disparity relative to static visual disparity, reduced brain activation in the right middle occipital gyrus, left cerebellum, and bilateral IPL was found in the IXT children compared with NCs. Significant positive correlations between brain activation values and the fusional vergence amplitude were found in the right FEF and right cerebellum in the NC group. Negative correlations between brain activation values and NCS were found in the right middle occipital gyrus, right cerebellum, left IPL, and right FEF in the IXT group. These results suggest that the reduced brain activation in the right FEF, left IPL, and cerebellum may play an important role in the pathogenesis of IXT by influencing fusional vergence function. While the increased brain activation in the left MT+ may compensate for this dysfunction in IXT children.


Asunto(s)
Exotropía , Lóbulo Frontal , Exotropía/diagnóstico por imagen , Exotropía/fisiopatología , Humanos , Niño , Adolescente , Imagen por Resonancia Magnética , Lóbulo Frontal/diagnóstico por imagen , Lóbulo Frontal/fisiopatología , Mapeo Encefálico
8.
Conscious Cogn ; 108: 103456, 2023 02.
Artículo en Inglés | MEDLINE | ID: mdl-36657222

RESUMEN

Inattentional blindness is the failure to notice an unexpected object in plain sight when attention is otherwise engaged. We investigated what determines observers' attentional set in a dynamic-counting inattentional blindness paradigm, when task instructions and visual distinctiveness of task-relevant objects were either congruent or in opposition. In seven experiments, observers counted bounces by task-relevant objects, with the instruction either to count-by-shape (squares, diamonds, crosses) or count-by-colour (blue, purple). To manipulate visual distinctiveness, we varied the extent to which task-relevant and task-irrelevant objects looked different on two dimensions: shape and colour. When colour better distinguished task-relevant from task-irrelevant objects, observers-even if instructed count-by-shape-reported an unexpected object that matched the colour of task-relevant objects. Crucially, when instructed count-by-colour, but shape better distinguished task-relevant from task-irrelevant objects, observers reported an unexpected object that matched the shape of task-relevant objects. We conclude that observers set their attention to promote efficient task performance.


Asunto(s)
Trastornos Mentales , Percepción Visual , Humanos , Cognición , Ceguera , Análisis y Desempeño de Tareas
9.
Health Commun ; : 1-15, 2023 Nov 02.
Artículo en Inglés | MEDLINE | ID: mdl-37919837

RESUMEN

The internet has revolutionized how we live, providing unprecedented convenience and up-to-date information. Consequently, an increasing number of individuals are turning to the internet for health-related information, despite research suggesting a correlation between this behavior and health anxiety. Therefore, drawing on cognitive - behavioral theory, we explore the link between online health information seeking and health anxiety via a systematic review and meta-analysis of cross-sectional studies. Following the Preferred Reporting Items for Systematic Reviews and Meta-analysis, we ran searches in multiple databases, including PubMed, Web of Science, Embase, Elsevier/Science Direct, Cochrane Database, China National Knowledge Infrastructure, VIP Chinese Database, and Wanfang Data. Our searches identified 16 studies eligible for review, involving 4,920 participants across seven countries. The random-effects meta-analysis revealed a significant positive correlation between online health information seeking and health anxiety (r = 0.28, 95% confidence interval [0.16, 0.41], p < .0001), despite considerable heterogeneity. Furthermore, meta-regression analysis demonstrated that the identity characteristics of the sample, female percentage, sample size, and country all contributed to the heterogeneity across studies. Overall, this meta-analysis provides support for the association between online health information seeking and health anxiety, and helps to elucidate the cognitive - behavioral theory underpinning this phenomenon.

10.
Water Sci Technol ; 86(3): 555-567, 2022 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-35960836

RESUMEN

Sulfidated nano zero-valent iron supported by activated carbon (S-nZVI/AC) composites were synthesized via liquid phase reduction method, and then they were used for Cr(VI) elimination. Characterization results showed that Fe0 was the main component, besides, iron oxides and iron sulfides were also detected. Scanning electron microscopy (SEM) and transmission electron microscopy (TEM) results showed that S-nZVI nanoparticles were homogeneously distributed on the surfaces of AC. The influences of S/Fe ratio, C/Fe ratio, pH value, reaction temperature and co-existed ions (Cl-, SO42-, PO43- and NO3-) on Cr(VI) removal performances were investigated. Furthermore, the corresponding mechanisms were also discussed. The S-nZVI/AC composites exhibited good aging-resistance performances that Cr(VI) removal efficiency still maintained at 83.1% after being sealed in water for seven days, and they also had satisfying cycling stabilities that Cr(VI) removal efficiency only decreased less than 10% after four cycles. The good performances of S-nZVI/AC composites for Cr(VI) removal are attributed to the protection effect of iron sulfides and immobilization effect of AC, making S-nZVI/AC as a promising candidate for Cr(VI) elimination in effluents.


Asunto(s)
Contaminantes Químicos del Agua , Adsorción , Cromo/química , Hierro/química , Sulfuros , Contaminantes Químicos del Agua/química
11.
Mol Genet Genomics ; 294(4): 861-873, 2019 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-30904950

RESUMEN

Culex pipiens pallens is an important vector that transmits Bancroftian filariasis, Japanese encephalitis and other diseases that pose a serious threat to human health. Extensive and improper use of insecticides has caused insecticide resistance in mosquitoes, which has become an important obstacle to the control of mosquito-borne diseases. It is crucial to investigate the underlying mechanism of insecticide resistance. The aims of this study were to identify genes involved in insecticide resistance based on the resistance phenotype, gene expression profile and single-nucleotide polymorphisms (SNPs) and to screen for major genes controlling insecticide resistance. Using a combination of SNP and transcriptome data, gene expression quantitative trait loci (eQTLs) were studied in deltamethrin-resistant mosquitoes. The most differentially expressed pathway in the resistant group was identified, and a regulatory network was built using these SNPs and the differentially expressed genes (DEGs) in this pathway. The major candidate genes involved in the control of insecticide resistance were analyzed by qPCR, siRNA microinjection and CDC bottle bioassays. A total of 85 DEGs that encoded putative detoxification enzymes (including 61 P450s) were identified in this pathway. The resistance regulatory network was built using SNPs, and these metabolic genes, and a major gene, CYP9AL1, were identified. The functional role of CYP9AL1 in insecticide resistance was confirmed by siRNA microinjection and CDC bottle bioassays. Using the eQTL approach, we identified important genes in pyrethroid resistance that may aid in understanding the mechanism underlying insecticide resistance and in targeting new measures for resistance monitoring and management.


Asunto(s)
Culex/genética , Redes Reguladoras de Genes/efectos de los fármacos , Resistencia a los Insecticidas , Polimorfismo de Nucleótido Simple , Animales , Culex/efectos de los fármacos , Femenino , Perfilación de la Expresión Génica/métodos , Regulación de la Expresión Génica/efectos de los fármacos , Proteínas de Insectos/genética , Piretrinas/farmacología , Sitios de Carácter Cuantitativo/efectos de los fármacos , Análisis de Secuencia de ARN
12.
Neurochem Res ; 43(6): 1200-1209, 2018 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-29802529

RESUMEN

Necroptosis is a manner of caspase-independent cell death,which accounts for delayed ischemic cerebral injury, and can be used as a novel tool to expand the treatment time window in ischemic cerebral injury. Q-VD-OPH, a novel pan caspase inhibitor, has been identified as an inducer of necroptosis. In this study, we determined the optimal dose of Q-VD-OPH, which induces necroptosis in rats by the middle cerebral artery occlusion, followed by reperfusion. Furthermore, we report that the NLRP3 inflammasome is involved in necroptosis, with levels of NLRP3 inflammasome proteins as well as inflammatory cytokines, such as IL-1ß, being elevated. We also demonstrated that NLRP3 was not only expressed in microglia and vascular endothelial cell, but also in neurons when necroptosis is induced with Q-VD-OPH. Inhibition of NLRP3 by glyburide strongly suppressed the expression of NLRP3 inflammasome proteins and IL-1ß, and markedly reduced brain tissue damage. Our findings provide evidence that pretreatment with Q-VD-OPH suppresses apoptosis and induces necroptosis in the cerebral ischemia-reperfusion model. We also identified that the NLRP3 inflammasome plays an important role in neuronal necroptosis, and that NLRP3 inflammasome deficiency reduces brain tissue damage after cerebral ischemia-reperfusion injury in rats.


Asunto(s)
Clorometilcetonas de Aminoácidos/toxicidad , Apoptosis/efectos de los fármacos , Isquemia Encefálica/metabolismo , Proteína con Dominio Pirina 3 de la Familia NLR/biosíntesis , Quinolinas/toxicidad , Daño por Reperfusión/metabolismo , Animales , Apoptosis/fisiología , Isquemia Encefálica/inducido químicamente , Isquemia Encefálica/patología , Gliburida/farmacología , Inflamasomas/biosíntesis , Masculino , Proteína con Dominio Pirina 3 de la Familia NLR/antagonistas & inhibidores , Necrosis/inducido químicamente , Necrosis/metabolismo , Necrosis/patología , Ratas , Ratas Sprague-Dawley , Daño por Reperfusión/inducido químicamente , Daño por Reperfusión/patología
13.
Zhongguo Zhong Yao Za Zhi ; 43(9): 1952-1956, 2018 May.
Artículo en Zh | MEDLINE | ID: mdl-29902910

RESUMEN

To study the evolution of Chinese ancient and modern pharmacopoeia standards and compare the domestic and foreign pharmacopoeias, further understand the international requirements on chrysanthemum quality, and establish a more suitable and modern standard system for high quality Chrysanthemi Flos pieces. Newly Revised Materia Medica, Welfare Pharmacy, Collected Essentials of Species of Materia Medica (Bencao Pinhui Jingyao), Chinese Pharmacopoeia and other herbal remedies in various generations were reviewed to summarize the evolution of domestic standards on Chrysanthemi Flos pieces. Then they were compared with those in European Pharmacopoeia, United States Pharmacopoeia, Japanese Pharmacopoeia and other foreign Pharmacopoeias to establish a modern and international high-quality Chrysanthemi Flos pieces standard system with Chinese medicine characteristics and produce more internationally recognized high-quality Chinese medicine pieces.


Asunto(s)
Chrysanthemum , Medicamentos Herbarios Chinos , Flores , Materia Medica , Estándares de Referencia
14.
J Colloid Interface Sci ; 661: 366-373, 2024 May.
Artículo en Inglés | MEDLINE | ID: mdl-38306746

RESUMEN

Hydrogels, recognized for their biocompatibility, are extensively employed in the realm of wearable devices. Nevertheless, their application is often constrained by their low mechanical robustness, rendering them susceptible to damage during operation. The restoration of their load-bearing and sensory functionalities post-damage represents a captivating yet underexplored domain. Conventional repair techniques, reliant on hydrogen bonding or van der Waals forces, falter in the face of hydrogels' high water content. In this study, a novel composite adhesive gel (SGG), integrating sodium alginate, guar gum, and graphene oxide, was engineered to mend impaired hydrogels. Furthermore, an optimized repair approach, utilizing a cross-shaped sectional (CSS) enhancement strategy, was devised to reinstate the hydrogels' load and sensory capabilities. Investigations revealed that the SGG adhesive infiltrated the hydrogel, establishing an intermediary gel stratum, subsequently solidifying to mend the material through topological adhesion. This process reestablished the continuity of the polymer network and the aqueous phase within the hydrogel. Following the application of the CSS augmentation method, the peak tensile strain of the remediated hydrogel exceeded 200 %, with the uppermost observable adhesive energy touching 2526 J/m2. In addition, the ability to respond to strain was significantly rejuvenated, suggesting an effective methodology for the rehabilitation of wearable technology.


Asunto(s)
Alginatos , Hidrogeles , Fenómenos Físicos , Enlace de Hidrógeno , Polímeros , Conductividad Eléctrica
15.
Eur J Pharm Biopharm ; 199: 114281, 2024 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-38599299

RESUMEN

Nattokinase (NK) is a thrombolytic enzyme extracted from natto, which can be used to prevent and treat blood clots. However, it is sensitive to the environment, especially the acidic environment of human stomach acid, and its effect of oral ingestion is minimal. This study aims to increase NK's oral and storage stability by embedding NK in microcapsules prepared with chitosan (CS) and γ-polyglutamic acid (γ-PGA). The paper prepared a double-layer NK oral delivery system by layer self-assembly and characterized its stability and in vitro simulated digestion. According to the research results, the bilayer putamen structure has a protective effect on NK, which not only maintains high activity in various environments (such as acid-base, high temperature) and long-term storage (60 days), but also effectively protects the loaded NK from being destroyed in gastric fluid and achieves its slow release. This work has proved the feasibility of the design of bilayer putamen structure in oral administration and has good fibrolytic activity. Therefore, the novel CS/γ-PGA microcapsules are expected to be used in nutraceutical delivery systems.


Asunto(s)
Quitosano , Estabilidad de Medicamentos , Fibrinolíticos , Ácido Poliglutámico , Subtilisinas , Quitosano/química , Ácido Poliglutámico/química , Ácido Poliglutámico/análogos & derivados , Subtilisinas/metabolismo , Subtilisinas/química , Fibrinolíticos/química , Fibrinolíticos/administración & dosificación , Fibrinolíticos/farmacología , Administración Oral , Humanos , Digestión/efectos de los fármacos , Cápsulas , Sistemas de Liberación de Medicamentos/métodos , Composición de Medicamentos/métodos , Liberación de Fármacos , Portadores de Fármacos/química
16.
Colloids Surf B Biointerfaces ; 239: 113963, 2024 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-38759294

RESUMEN

Among various biomimetic polymer materials, polydimethylsiloxane (PDMS) stands out as an ideal matrix for surface-enhanced Raman scattering (SERS) due to its unique intrinsic Raman signal and tenacity. In order to realize the precise detection of prostate-specific antigen (PSA), we proposed a sandwich-type SERS-active immunostructure composed of PDMS@silver nanoparticles (Ag NPs)@ZIF-67 biomimetic film as the immunosubstrate and gold nanorods (Au NRs) as immunoprobes. Due to the synergistic effect of electromagnetic enhancement facilitated by biomimetic surfaces and chemical enhancement achieved by ZIF-67, this structure enabled an ultrasensitive and selective detection of PSA across a broad range from 10-3 to 10-9 mg/mL. The achieved limit of detection was as low as 3.0 × 10-10 mg/mL. Particularly, the intrinsic Raman signal of PDMS matrix at 2905 cm-1 was employed as a potential internal standard (IS) in the detection, achieving a high coefficient of determination (R2) value of 0.996. This multifunctional SERS substrate-mediated immunoassay holds vast potential for early diagnosis of prostate cancer, offering promising prospects for clinical applications.


Asunto(s)
Dimetilpolisiloxanos , Nanopartículas del Metal , Antígeno Prostático Específico , Plata , Espectrometría Raman , Plata/química , Espectrometría Raman/métodos , Inmunoensayo/métodos , Antígeno Prostático Específico/análisis , Nanopartículas del Metal/química , Dimetilpolisiloxanos/química , Humanos , Oro/química , Materiales Biomiméticos/química , Propiedades de Superficie , Límite de Detección , Nanotubos/química , Masculino , Tamaño de la Partícula , Imidazoles , Zeolitas
17.
BMJ Open ; 14(4): e076107, 2024 Apr 10.
Artículo en Inglés | MEDLINE | ID: mdl-38604638

RESUMEN

OBJECTIVES: Clinical practice guideline (CPG) developers conduct systematic summaries of research evidence, providing them great capacity and ability to identify research priorities. We systematically analysed the reporting form and content of research priorities in CPGs related to knee osteoarthritis (KOA) to provide a valuable reference for guideline developers and clinicians. DESIGN: A methodological literature analysis was done and the characteristics of the reporting form and the content of the research priorities identified in KOA CPGs were summarised. DATA SOURCES: Six databases (PubMed, Embase, China National Knowledge Infrastructure, VIP Database for Chinese Technical Periodicals, Wanfang and Chinese Biomedical Literature Database) were searched for CPGs published from 1 January 2017 to 4 December 2022. The official websites of 40 authoritative orthopaedic societies, rheumatology societies and guideline development organisations were additionally searched. ELIGIBILITY CRITERIA: We included all KOA CPGs published in English or Chinese from 1 January 2017 that included at least one recommendation for KOA. We excluded duplicate publications, older versions of CPGs as well as guidance documents for guideline development. DATA EXTRACTION AND SYNTHESIS: Reviewers worked in pairs and independently screened and extracted the data. Descriptive statistics were used, and absolute frequencies and proportions of related items were calculated. RESULTS: 187 research priorities reported in 41 KOA CPGs were identified. 24 CPGs reported research priorities, of which 17 (41.5%) presented overall research priorities for the entire guideline rather than for specific recommendations. 110 (58.8%) research priorities were put forward due to lack of evidence. Meanwhile, more than 70% of the research priorities reflected the P (population) and I (intervention) structural elements, with 135 (72.2%) and 146 (78.1%), respectively. More than half of the research priorities (118, 63.8%) revolved around evaluating the efficacy of interventions. Research priorities primarily focused on physical activity (32, 17.3%), physical therapy (30, 16.2%), surgical therapy (27, 14.6%) and pharmacological treatment (26, 14.1%). CONCLUSIONS: Research priorities reported in KOA CPGs mainly focused on evaluating non-pharmacological interventions. There exists considerable room for improvement for a comprehensive and standardised generation and reporting of research priorities in KOA CPGs.


Asunto(s)
Ortopedia , Osteoartritis de la Rodilla , Humanos , Osteoartritis de la Rodilla/terapia , Publicaciones , Investigación , Guías de Práctica Clínica como Asunto
18.
Front Biosci (Landmark Ed) ; 29(5): 178, 2024 May 09.
Artículo en Inglés | MEDLINE | ID: mdl-38812302

RESUMEN

The Warburg effect, also called aerobic glycolysis, refers to tumor cells that metabolize glucose through glycolysis even in the presence of oxygen. This rapid breakdown of glucose fuels the fast development, growth, and migration of tumor cells. Lactate, the final product of aerobic glycolysis, contributes to an acidic environment within the tumor, promoting the formation of an immunosuppressive microenvironment and accelerating tumor progression by impeding anti-tumor immunity. Numerous studies have confirmed the critical role of aerobic glycolysis in the occurrence and development of hepatocellular carcinoma by influencing tumor cells proliferation, invasion, metastasis, apoptosis, immune escape, angiogenesis, and more. Clinical trials have shown that inhibitors of rate-limiting enzymes in the glycolysis pathway can enhance the effectiveness of sorafenib, a targeted drug for hepatocellular carcinoma, by reducing drug resistance. Additionally, active components of traditional Chinese medicine and specific compound prescriptions are gaining attention for their potential to target and regulate aerobic glycolysis in hepatocellular carcinoma. Therefore, inhibiting the aerobic glycolysis pathway holds promise as a therapeutic strategy for treating liver tumors. This manuscript aims to review the role, research directions, and clinical studies of aerobic glycolysis in hepatocellular carcinoma.


Asunto(s)
Carcinoma Hepatocelular , Neoplasias Hepáticas , Efecto Warburg en Oncología , Humanos , Carcinoma Hepatocelular/metabolismo , Carcinoma Hepatocelular/tratamiento farmacológico , Neoplasias Hepáticas/metabolismo , Neoplasias Hepáticas/tratamiento farmacológico , Neoplasias Hepáticas/patología , Glucólisis , Antineoplásicos/uso terapéutico , Antineoplásicos/farmacología , Animales
19.
BMC Complement Med Ther ; 24(1): 19, 2024 Jan 04.
Artículo en Inglés | MEDLINE | ID: mdl-38178118

RESUMEN

BACKGROUND: The overall comprehensive consideration of the factors influencing the recommendations in the traditional Chinese medicine (TCM) guidelines remains poorly studied. This study systematically evaluate the factors influencing recommendations formation in the Grading of Recommendations Assessment, Development, and Evaluation (GRADE) clinical practice guidelines (CPGs) and TCM CPGs. METHODS: This was a methodological review in which we searched six databases and multiple related websites. The GRADE CPGs were identified as the guidelines developed by the GRADE Working Group or the two Co-Chairs. For the TCM CPGs, we randomly selected guidelines that were published by the TCM or integrative medicine academic societies from China mainland (published by the TCM or integrative medicine academic societies of China mainland). Two reviewers independently screened and extracted data. We included CPGs published in 2018-2022. We extracted information on the influencing factors of evidence to recommendation and conducted the analyses using descriptive statistics and calculated the proportion of relevant items by IBM SPSS Statistics and Microsoft Excel to compare the differences between the GRADE CPGs and the TCM CPGs. RESULTS: Forty-five GRADE CPGs (including 912 recommendations) and 88 TCM CPGs (including 2452 recommendations) were included. TCM recommendations mainly considered the four key determinants of desirable anticipated effects, undesirable anticipated effects, balance between desirable and undesirable effects, certainty of evidence, with less than 20% of other dimensions. And TCM CPGs presented more strong recommendations (for or against) and inappropriate discordant recommendations than GRADE CPGs. GRADE CPGs were more comprehensive considered about the factors affecting the recommendations, and considered more than 70% of all factors in the evidence to recommendation. CONCLUSIONS: The TCM CPGs lack a comprehensive consideration of multiple influencing determinants from evidence to recommendations. In the future, the correct application of the GRADE approaches should be emphasized.


Asunto(s)
Medicina Integrativa , Medicina Tradicional China , China , Bases de Datos Factuales
20.
Adv Sci (Weinh) ; 11(23): e2402509, 2024 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-38590132

RESUMEN

Diagnosis and stratification of prostate cancer (PCa) patients using the prostate-specific antigen (PSA) test is challenging. Extracellular vesicles (EVs), as a new star of liquid biopsy, has attracted interest to complement inaccurate PSA screening and invasiveness of tissue biopsy. In this study, a panel of potential small EV (sEV) protein biomarkers is identified from PCa cell lines using label-free LC-MS/MS proteomics. These biomarkers underwent further validation with plasma and urine samples from different PCa stages through parallel reaction monitoring-based targeted proteomics, western blotting, and ELISA. Additionally, a tissue microarray containing cancerous and noncancerous tissues is screened to provide additional evidence of selected sEV proteins associated with cancer origin. Results indicate that sEV protein LAMB1 is highly expressed in human plasma of metastatic PCa patients compared with localised PCa patients and control subjects, while sEV protein Histone H4 is highly expressed in human urine of high-risk PCa patients compared to low-risk PCa patients and control subjects. These two sEV proteins demonstrate higher specificity and sensitivity than the PSA test and show promise for metastatic PCa diagnosis, progression monitoring, and risk stratification.


Asunto(s)
Biomarcadores de Tumor , Vesículas Extracelulares , Histonas , Neoplasias de la Próstata , Proteómica , Humanos , Neoplasias de la Próstata/diagnóstico , Neoplasias de la Próstata/metabolismo , Neoplasias de la Próstata/patología , Masculino , Proteómica/métodos , Biomarcadores de Tumor/metabolismo , Biomarcadores de Tumor/orina , Vesículas Extracelulares/metabolismo , Histonas/metabolismo , Medición de Riesgo/métodos , Persona de Mediana Edad , Anciano , Cromatografía Liquida/métodos , Espectrometría de Masas en Tándem/métodos , Laminina
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