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1.
Chem Commun (Camb) ; 2024 Sep 24.
Artículo en Inglés | MEDLINE | ID: mdl-39315652

RESUMEN

All-solid-state batteries using transition metal sulfide cathodes have received a lot of attention because of both their high safety and energy density. In this work, a 95MoS6·5LiI composite is employed as the active material in all-solid-state batteries, showing improved capacity and cycle life due to the increase in electrochemical reaction kinetics. This work provides a reliable cathode material with high reversible capacity and cyclability for all-solid-state rechargeable batteries.

2.
Sci Rep ; 14(1): 20904, 2024 Sep 08.
Artículo en Inglés | MEDLINE | ID: mdl-39245772

RESUMEN

The integration of multiple functionalities into a single, planar, ultra-compact metasurface has presented significant opportunities for enhancing capacity and performance within compact 5G/6G communication systems. Recent advances in multifunctional metasurfaces have unveiled comprehensive wavefront manipulations utilizing phase, polarization transmission/reflection, and coding apertures. Despite these developments, there remains a critical need for multifunctional metasurfaces with expanded channel capabilities, including multiple operational frequencies, minimal crosstalk, and high-efficiency computable array factors. This study introduces a multifunctional metasurface that integrates phase- and amplitude simultaneous coding meta-atoms at dual frequencies. By altering the polarization of electromagnetic (EM) waves, it is possible to reshape the wave-fronts of reflected waves at these frequencies. The coding metasurface proficiently manipulates both x and y linearly polarized waves through phase and amplitude coding at dual frequencies, thereby enabling distinct functionalities such as anomalous reflection, reflection imaging, and vortex wave beam generation. Both theoretical analysis and full-wave simulation confirm the anticipated functionalities of the designed devices, paving the way for advancements in integrated communication systems with diverse functionalities.

3.
Angew Chem Int Ed Engl ; : e202410938, 2024 Aug 02.
Artículo en Inglés | MEDLINE | ID: mdl-39092496

RESUMEN

The electrocatalytic C-N coupling from CO2 and nitrate emerges as one of the solutions for waste upgrading and urea synthesis. In this work, we constructed electron-deficient Cu sites by the strong metal-polymer semiconductor interaction, to boost efficient and durable urea synthesis. In situ Raman spectroscopy identified the existence of electron-deficient Cu sites and was able to withstand electrochemical reduction conditions. Operando synchrotron-radiation Fourier transform infrared spectroscopy and theoretical calculations disclosed the vital role of electron-deficient Cu in adsorption and C-N coupling of oxygen-containing species. The electron-deficient Cu displayed a high urea yield rate of 255.0 mmol h-1 g-1 at -1.4 V versus the reversible hydrogen electrode and excellent electrochemical durability, superior than that of non-electron-deficient counterpart with conductive carbon material as the support. It can be concluded that the regulation of site electronic structure is more important than the optimization of catalyst conductive properties in the C-N coupling reactions.

4.
Mol Carcinog ; 63(10): 1866-1873, 2024 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-39092765

RESUMEN

The tumorigenesis of intrahepatic cholangiocarcinoma (ICC) has been identified to be exceptionally involved in dysregulated Hippo/Yes-associated protein (YAP) signaling pathway (Hippo/YAP). Hippo/YAP functions as a master regulator engaged in a plethora of physiological and oncogenic processes as well. Therefore, the aberrant Hippo/YAP could serve as an Achilles' heel regarding the molecular therapeutic avenues for ICC patients. Herein, we comprehensively review the recent studies about the underlying mechanism of disrupted Hippo/YAP in ICC, how diagnostic values could be utilized upon the critical genes in this pathway, and what opportunities could be given upon this target pathway.


Asunto(s)
Neoplasias de los Conductos Biliares , Colangiocarcinoma , Vía de Señalización Hippo , Proteínas Serina-Treonina Quinasas , Transducción de Señal , Factores de Transcripción , Proteínas Señalizadoras YAP , Colangiocarcinoma/metabolismo , Colangiocarcinoma/tratamiento farmacológico , Colangiocarcinoma/patología , Colangiocarcinoma/genética , Humanos , Neoplasias de los Conductos Biliares/metabolismo , Neoplasias de los Conductos Biliares/tratamiento farmacológico , Neoplasias de los Conductos Biliares/patología , Neoplasias de los Conductos Biliares/genética , Proteínas Serina-Treonina Quinasas/metabolismo , Proteínas Serina-Treonina Quinasas/genética , Factores de Transcripción/metabolismo , Factores de Transcripción/genética , Proteínas Señalizadoras YAP/metabolismo , Proteínas Adaptadoras Transductoras de Señales/metabolismo , Proteínas Adaptadoras Transductoras de Señales/genética , Animales , Terapia Molecular Dirigida/métodos , Regulación Neoplásica de la Expresión Génica
8.
Neurosurgery ; 2024 Jun 24.
Artículo en Inglés | MEDLINE | ID: mdl-38912801

RESUMEN

BACKGROUND AND OBJECTIVES: Assessment of postoperative outcomes on pediatric hydrocephalus is critical for adjusting treatment strategies. The aim of this work was to investigate the ability of MRI metrics to predict postoperative outcomes. METHODS: A total of 55 children with hydrocephalus who underwent MRI and ventriculoperitoneal shunt surgery were prospectively enrolled. MRI was also performed at 6 months postoperatively in 33 of the 55 children. A total of 92 controls matched for age and sex were enrolled and divided into preoperative and postoperative control groups. We calculated the diffusion tensor imaging along the perivascular space (DTI-ALPS) index, Evans index, and diffusion tensor imaging metrics. The ability of various metrics to predict postoperative outcomes was assessed using receiver operating characteristic curve analysis. RESULTS: The DTI-ALPS index was significantly lower in patients with hydrocephalus than in controls. The abnormal DTI-ALPS index trended toward the normal range after surgery. Patients with lower preoperative DTI-ALPS index, lower fractional anisotropy (FA), and higher radial diffusivity in association fibers had less favorable short-term outcomes. Patients with worse long-term outcomes had lower postoperative DTI-ALPS index, higher postoperative Evans index, and lower FA and higher radial diffusivity in association fibers. Predictive performance was better when the DTI-ALPS index and FA in association fibers were used in combination than when either of these metrics was used alone. CONCLUSION: The DTI-ALPS index and FA in association fibers provided complementary information for prognostic assessment after the ventriculoperitoneal shunt surgery on pediatric hydrocephalus. A combination of DTI-ALPS index and FA would improve our ability to predict postoperative outcomes in these patients.

9.
J Transl Med ; 22(1): 554, 2024 Jun 10.
Artículo en Inglés | MEDLINE | ID: mdl-38858785

RESUMEN

BACKGROUND: The molecular complexity of colorectal cancer poses a significant challenge to the clinical implementation of accurate risk stratification. There is still an urgent need to find better biomarkers to enhance established risk stratification and guide risk-adapted treatment decisions. METHODS: we systematically analyzed cancer dependencies of 17 colorectal cancer cells and 513 other cancer cells based on genome-scale CRISPR-Cas9 knockout screens to identify colorectal cancer-specific fitness genes. A regression model was built using colorectal cancer-specific fitness genes, which was validated in other three independent cohorts. 30 published gene expression signatures were also retrieved. FINDINGS: We defined a total of 1828 genes that were colorectal cancer-specific fitness genes and identified a 22 colorectal cancer-specific fitness gene (CFG22) score. A high CFG22 score represented unfavorable recurrence and mortality rates, which was validated in three independent cohorts. Combined with age, and TNM stage, the CFG22 model can provide guidance for the prognosis of colorectal cancer patients. Analysis of genomic abnormalities and infiltrating immune cells in the CFG22 risk stratification revealed molecular pathological difference between the subgroups. Besides, drug analysis found that CFG22 high patients were more sensitive to clofibrate. INTERPRETATION: The CFG22 model provided a powerful auxiliary prediction tool for identifying colorectal cancer patients with high recurrence risk and poor prognosis, optimizing precise treatment and improving clinical efficacy.


Asunto(s)
Sistemas CRISPR-Cas , Neoplasias Colorrectales , Técnicas de Inactivación de Genes , Neoplasias Colorrectales/genética , Neoplasias Colorrectales/patología , Neoplasias Colorrectales/diagnóstico , Humanos , Sistemas CRISPR-Cas/genética , Medición de Riesgo , Línea Celular Tumoral , Pronóstico , Masculino , Aptitud Genética , Femenino , Genoma Humano , Regulación Neoplásica de la Expresión Génica
10.
Eur Spine J ; 33(8): 3069-3081, 2024 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-38907855

RESUMEN

PURPOSE: Prolonged mechanical ventilation (PMV) and reintubation are among the most serious postoperative adverse events associated with malignant cervical tumors. In this study, we aimed to clarify the incidence, characteristics, and risk factors for PMV and reintubation in target patients. METHODS: This retrospective nested case-control study was performed between January 2014 and January 2020 at a large spinal tumor center in China. Univariate analysis was used to identify the possible risk factors associated with PMV and reintubation. Logistic regression analysis was performed to estimate the odds ratios (ORs) and 95% confidence intervals (CIs) with covariates of a probability < 0.05 in univariate analysis. RESULTS: From a cohort of 560 patients with primary malignant (n = 352) and metastatic (n = 208) cervical tumors, 27 patients required PMV and 20 patients underwent reintubation. The incidence rates of PMV and reintubation were 4.82% and 3.57%, respectively. Three variables (all p < 0.05) were independently associated with an increased risk of PMV: Karnofsky Performance Status < 50 compared to ≥ 80, operation duration ≥ 8 h compared to < 6 h, and C4 nerve root encased by the tumor. Longer operative duration and preoperative hypercapnia (all p < 0.05) were independent risk factors for postoperative reintubation, both of which led to longer length of stay (32.6 ± 30.8 vs. 10.7 ± 5.95 days, p < 0.001), with an in-hospital mortality of 17.0%. CONCLUSION: Our results demonstrate the risk factors for PMV or reintubation after surgery for malignant cervical tumors. Adequate assessment, early detection, and prevention are necessary for this high-risk population.


Asunto(s)
Intubación Intratraqueal , Respiración Artificial , Humanos , Femenino , Persona de Mediana Edad , Respiración Artificial/estadística & datos numéricos , Masculino , Estudios de Casos y Controles , Factores de Riesgo , Anciano , Estudios Retrospectivos , Intubación Intratraqueal/estadística & datos numéricos , Intubación Intratraqueal/efectos adversos , Adulto , Vértebras Cervicales/cirugía , Neoplasias de la Columna Vertebral/cirugía , Complicaciones Posoperatorias/epidemiología , Complicaciones Posoperatorias/etiología
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