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1.
Taiwan J Obstet Gynecol ; 63(5): 764-767, 2024 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-39266162

RESUMEN

OBJECTIVE: To help determine the pathogenicity of 4p16.1 microduplications, we reported two asymptomatic families carrying this variation. CASE REPORT: We present the prenatal diagnosis and genetic analysis of two normal families with 4p16.1 microduplications. CONCLUSION: This paper highlights two families with clinically asymptomatic 4p16.1 microduplications that assisted in determining the pathogenicity of this fragment. The findings can be used as a reference for genetic counseling in cases of similar abnormalities encountered during future prenatal diagnosis.


Asunto(s)
Cromosomas Humanos Par 4 , Fenotipo , Humanos , Femenino , Embarazo , Adulto , Cromosomas Humanos Par 4/genética , Duplicación Cromosómica/genética , Pruebas Genéticas/métodos , Asesoramiento Genético , Linaje , Diagnóstico Prenatal/métodos , Ultrasonografía Prenatal
2.
J Prosthet Dent ; 2024 Sep 19.
Artículo en Inglés | MEDLINE | ID: mdl-39304493

RESUMEN

Patients who undergo hemimandibulectomy have multiple functional impairments, and early initiation of guidance therapy has been associated with an improved definitive occlusal relationship. This article describes a digital workflow to determine the angle and form the shape of the flange of the mandibular guide plane prosthesis (MGPP), and to create an MGPP before mandibular resection surgery. A virtual articulator was used to achieve the movements of the maxilla relative to the mandible, and the shape of the MGPP was adjusted by dynamic occlusion. The MGPP and mandibular case were printed using a digital light processing (DLP) printer. This technique avoids intraoral procedures such as making impression and tooth preparation when mouth opening is limited after surgery and enables early functional training.

3.
Water Environ Res ; 96(9): e11124, 2024 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-39285675

RESUMEN

This research exploited biochar, sourced from Ginkgo leaves (GLs), to facilitate the adsorption of 2,4-dichlorophenoxyacetic acid (2,4-D) in aqueous environments. The results reveal that GL biochar, activated with ZnCl2 at a temperature of 500°C (500-ZGBC), demonstrated the greatest specific surface area (SBET) of 536.0 m2 g-1 for 2,4-D adsorption. The biochar's properties, including specific surface area, morphology, structure, thermal stability, and functional groups, were analyzed. Additionally, studies of kinetic and isotherm profiles were conducted, yielding the highest recorded adsorption capacity of 281.8 mg g-1. Pore filling, hydrogen bonding, π-π interactions, surface complexation with Zn groups, and electrostatic interactions contribute significantly to the adsorption performance of 500-ZGBC for 2,4-D. Optimal adsorption was determined to occur at pH 2.117, with a dose of 0.4230 g L-1 of 500-ZGBC, and an initial concentration of 2,4-D at 294.7 mg L-1, as evidenced by the application of the response surface method (RSM). PRACTITIONER POINTS: Premium pharmaceutical-grade biochar, derived from Ginkgo leaves, boasting a SBET of 536.0 m2 g-1 was produced. An absorption capacity reaching 281.8 mg g-1 was observed in Ginkgo leaf biochar for 2,4-dichlorophenoxyacetic acid (2,4-D) adsorption. The adsorption procedure was refined through the employment of response surface methodology.


Asunto(s)
Ácido 2,4-Diclorofenoxiacético , Carbón Orgánico , Ginkgo biloba , Herbicidas , Hojas de la Planta , Contaminantes Químicos del Agua , Ginkgo biloba/química , Ácido 2,4-Diclorofenoxiacético/química , Adsorción , Carbón Orgánico/química , Herbicidas/química , Hojas de la Planta/química , Contaminantes Químicos del Agua/química , Aguas Residuales/química , Cinética , Purificación del Agua/métodos
4.
Int J Biol Macromol ; 277(Pt 3): 134470, 2024 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-39102914

RESUMEN

Transparent bamboo proved to be a promising substitute for glass due to its high light transmittance and excellent mechanical properties. Nevertheless, it was susceptible to outdoor weathering, which negatively affected its physical and mechanical properties. In this study, two decolorisation methods, namely the delignification method and the lignin modification method, were used to produce transparent bamboos with epoxy resin, referred to as DL-TB and LM-TB, respectively. The changes in surface color, optical and mechanical properties, wettability, thermal stability, and thermal insulation properties of transparent bamboo during accelerated UV weathering were evaluated. Additionally, the deterioration mechanism of DL-TB and LM-TB was investigated. The findings revealed that DL-TB demonstrated better transparency and mechanical properties than LM-TB, although it exhibited lower thermal insulation properties. Furthermore, DL-TB demonstrated enhanced color stability and higher hydrophobicity on weathered surfaces than LM-TB. Unexpectedly, the tensile properties of both two transparent bamboos significantly improved after weathering, especially for LM-TB, which was due to the EP post-curing and the formation of more hydrogen bonds between lignin and EP. These observations revealed that lignin played a key role in the photodegradation process of transparent bamboo, but further attempts should be made in future studies to improve its color stability.


Asunto(s)
Color , Lignina , Lignina/química , Vidrio/química , Humectabilidad , Sasa/química , Resistencia a la Tracción , Interacciones Hidrofóbicas e Hidrofílicas , Fenómenos Mecánicos
5.
J Inflamm Res ; 17: 5139-5160, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-39104907

RESUMEN

Objective: To explore the mechanism and active components of the anti-colitis effects of myrrh essential oil (MEO). Methods: In this study, we investigated the anti-inflammatory effects and molecular mechanisms of MEO on dextran sulfate sodium (DSS)-induced colitis with in vitro cell experiments, RNA-seq (RNA Sequencing), Weighted gene co-expression network analysis (WGCNA), combined with "weighting coefficient" network pharmacology, as and in vivo pharmacodynamic experiments. A 3% DSS solution was used to induce colitis in BALB/c mice and MEO was administered orally. We performed gas chromatography-mass spectrometry (GC-MS) analysis of the MEO components. The disease activity index (DAI) was evaluated by observing body weight, fecal characteristics, and blood in the stool of mice. The levels of inflammatory cytokines (TNF-α and IL-1ß) in mouse serum were measured using ELISA (Enzyme-linked immunosorbent assay) kits. Additionally, the expression of MAPK-related proteins (JNK, p-JNK, ERK, and p-ERK) in mouse colonic tissues was detected by Western blotting and immunohistochemistry. Results: MEO (0.0625-0.125µg/g, p.o). significantly inhibited the expression of the inflammatory mediator Nitric oxide (NO) in lipopolysaccharide (LPS)-induced RAW264.7 macrophages. After treatment, there was a significant increase in body weight and alleviation of diarrhea and bloody stools in colitis mice. It also reduced inflammatory cell infiltration. Furthermore, it decreased the serum levels of TNF-α and IL-1ß, and reduced the activity of p-JNK and p-ERK in the MAPK pathway. Conclusion: MEO relieved DSS-induced colitis by modulating the MAPK pathway. The experimental results indicate that the MAPK pathway might be inhibited by the synergistic effect of gamma-Muurolene, Curzerene, beta-Elemene, and Furanoeudesma 1.3-diene in MEO, which provides a novel idea for subsequent research and development of new anti-colitis drugs.

6.
Heliyon ; 10(13): e34214, 2024 Jul 15.
Artículo en Inglés | MEDLINE | ID: mdl-39091943

RESUMEN

Purpose: This study aimed to investigated the key chemical components and the effect of the aqueous extract of Schisandra sphenanthera (SSAE) on alcoholic liver disease (ALD) and the related molecular mechanism. Methods: This study employed UPLC-Q-TOF-MS/MS to identify the chemical compositions in SSAE. ALD rat model was established through oral administration of white spirit. Transcriptome sequencing, weighted gene co-expression network construction analysis (WGCNA), and network pharmacology were used to predict key compositions and pathways targeted by SSAE for the treatment of ALD. Enzyme-linked immunosorbent assay (ELISA), biochemical kits, hematoxylin-eosin (HE) staining, Western blotting (WB) analysis, and immunohistochemical analysis were used to validate the mechanism of action of SSAE in treating ALD. Results: Active ingredients such as schisandrin A, schisandrol A, and schisandrol B were found to regulate the PI3K/AKT/IKK signaling pathway. Compared to the model group, the SSAE group demonstrated significant improvements in cellular solidification and tissue inflammation in the liver tissues of ALD model rats. Additionally, SSAE regulated the levels of a spartate aminotransferase (AST), alanine aminotransferase (ALT), alcohol dehydrogenase (ADH), and aldehyde Dehydrogenase (ALDH) in serum (P < 0.05); Western blotting and immunohistochemical analyses showed that the expression levels of phosphorylated PI3K, AKT, IKK, NFκB, and FOXO1 proteins were significantly reduced in liver tissues (P < 0.05), whereas the expression level of Bcl-2 proteins was significantly increased (P < 0.05). Conclusion: The active components of SSAE were schisandrin A, schisandrol A, and schisandrol B, which regulated the phosphorylation levels of PI3K, AKT, IKK, and NFκB and the expression of FOXO1 protein and upregulated the expression of Bcl-2 protein in the liver tissues of ALD rats. These findings indicate that SSAE acts against ALD partly through the PI3K-AKT-IKK signaling pathway. This study provided a reference for future research and treatment of ALD and the development of novel natural hepatoprotective drugs.

7.
Work ; 2024 Aug 19.
Artículo en Inglés | MEDLINE | ID: mdl-39177638

RESUMEN

BACKGROUND: Teaching will bring work stress and affect emotions, as well as require a high level of professional identity. However, few have examined trilateral relationships between work stress (in terms of challenge-hindrance stress), professional identity, and emotional labor among Chinese preschool teachers during COVID-19. OBJECTIVE: Based on the conservation of resource theory, this study aimed to examine the relationship between challenge-hindrance stress, emotional labor, and professional identity, as well as explore the mediating effects of professional identity between job stress and emotional labor among Chinese preschool teachers. METHODS: A cross-sectional study was conducted, with 753 preschool teachers completing a self-report questionnaire. Statistical analyses were conducted using SPSS 26.0 and included descriptive statistics, Pearson correlation analysis, regression analysis, and mediation effect testing. RESULTS: Research indicated that 1) challenge-hindrance stress was positively correlated with surface acting (r = 0.21, p < 0.01, and r = 0.28, p < 0.01) but negatively correlated with the expression of naturally felt emotions (r = -0.08, p < 0.05, and r = -0.12, p < 0.01); 2) Challenge-hindrance stress was negatively correlated with professional identity (r = -0.08, p < 0.05, and r = -0.20, p < 0.01); 3) Professional identity exhibited positive correlations with the three dimensions of emotional labor (r = 0.12, p < 0.01; r = 0.64, p < 0.01; and r = 0.56, p < 0.01) and partially mediated the relationship between challenge-hindrance stress and emotional labor. CONCLUSION: The study underscored that challenge-hindrance stress affected emotional labor directly and indirectly through the mediating role of professional identity. Interventions focusing on alleviating work stress and promoting professional identity through comprehensive training could effectively mitigate emotional labor among preschool teachers.

8.
Front Pharmacol ; 15: 1395887, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-39108749

RESUMEN

Introduction: Chemicals, such as MNU (N-methyl-N-nitrosourea) and NaIO3 (sodium iodate), are widely used to induce retinal degeneration in rodents. Streptozotocin (STZ) is an analog of N-acetyl glucosamine in which an MNU moiety is linked to a hexose and has a special toxic effect on insulin-producing pancreatic ß-cells. It is commonly used to induce hyperglycemia to model diabetes. While intracerebroventricular injection of STZ can produce Alzheimer's disease independent of hyperglycemia, most retinal studies using STZ focus on the effects of hyperglycemia on the retina, but whether STZ has any impact on retinal cells independent of hyperglycemia is unknown. We aimed to investigate the role of cytotoxicity of STZ in rat retina. Methods: Intravitreal or subcutaneous injection of STZ was performed on newborn rats. Electroretinogram (ERG) and H&E staining investigated retinal function and morphological changes. Retinal cell types, cell death, proliferation, inflammation, and angiogenesis were studied by immunostaining. RNA sequencing was performed to examine the transcriptome changes of retinal cells after intravitreal injection of STZ. Results: Intravitreal (5 µg or 10 µg) or subcutaneous (30 mg/kg) injection of STZ at the early stage of newborn rats couldn't induce hyperglycemia but caused NSIR (Neonatal STZ-induced retinopathy), including reduced ERG amplitudes, retinal rosettes and apoptosis, cell cycle arrest, microglial activation, and delayed retinal angiogenesis. STZ did not affect the early-born retinal cell types but significantly reduced the late-born ones. Short-term and long-term hyperglycemia had no significant effects on the NSIR phenotypes. RNA sequencing revealed that STZ induces oxidative stress and activates the p53 pathway of retinal cells. Locally or systemically, STZ injection after P8 couldn't induce SINR when all retinal progenitors exit the cell cycle. Conclusion: NSIR in rats is independent of hyperglycemia but due to STZ's direct cytotoxic effects on retinal progenitor cells. NSIR is a typical reaction to STZ-induced retinal oxidative stress and DNA damage. This significant finding suggests that NSIR may be a valuable model for studying retinal progenitor DNA damage-related diseases, potentially leading to new insights and treatments.

9.
Sci Rep ; 14(1): 15061, 2024 07 01.
Artículo en Inglés | MEDLINE | ID: mdl-38956245

RESUMEN

Neurocritically ill patients frequently exhibit coma, gastroparesis, and intense catabolism, leading to an increased risk of malnutrition. The Global Leadership Initiative on Malnutrition (GLIM) criteria for the diagnosis of malnutrition was created to achieve a consistent malnutrition diagnosis across diverse populations. This study aimed to validate the concurrent and predictive validity of GLIM criteria in patients with neurocritical illnesses. A total of 135 participants were followed from admission to the neurocritical unit (NCU) until discharge. Comparing GLIM criteria to the Subjective Global Assessment (SGA), sensitivity was 0.95 and specificity was 0.69. Predictive validity of GLIM criteria was assessed using a composite adverse clinical outcome, comprising mortality and various major complications. Adjusted hazard ratios for moderate and severe malnutrition were 2.86 (95% CI 1.45-5.67) and 3.88 (95% CI 1.51-9.94), respectively. Changes in indicators of nutritional status, including skeletal muscle mass and abdominal fat mass, within 7 days of admission were obtained for 61 participants to validate the predictive capability of the GLIM criteria for the patients' response of standardized nutritional support. The GLIM criteria have a statistically significant predictive validity on changes in rectus femoris muscle thickness and midarm muscle circumference. In conclusion, the GLIM criteria demonstrate high sensitivity for diagnosing malnutrition in neurocritically ill patients and exhibit good predictive validity.


Asunto(s)
Enfermedad Crítica , Desnutrición , Apoyo Nutricional , Humanos , Masculino , Femenino , Persona de Mediana Edad , Desnutrición/diagnóstico , Apoyo Nutricional/métodos , Anciano , Estado Nutricional , Adulto , Evaluación Nutricional , Enfermedades del Sistema Nervioso/diagnóstico , Valor Predictivo de las Pruebas
10.
Clin Neurol Neurosurg ; 244: 108397, 2024 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-38968813

RESUMEN

Remote ischemic post-conditioning (RIPostC) can reduce cerebral ischemia reperfusion injury (IRI) by inducing endogenous protective effects, the distal limb ischemia post-treatment and in situ ischemia post-treatment were classified according to the site of intervention. And in the process of clinical application distal limb ischemia post-treatment is more widely used and more conducive to clinical translation. Therefore, in this paper, we review the mechanism of action and clinical application of RIPostC in cerebral ischemia, hoping to provide reference help for future experimental directions and clinical translation.


Asunto(s)
Poscondicionamiento Isquémico , Accidente Cerebrovascular Isquémico , Humanos , Poscondicionamiento Isquémico/métodos , Accidente Cerebrovascular Isquémico/terapia , Daño por Reperfusión/terapia , Isquemia Encefálica/terapia , Animales
11.
Adv Sci (Weinh) ; 11(35): e2405158, 2024 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-39021327

RESUMEN

Radiated tumor cell-derived extracellular vesicles (RT-EVs) encapsulate abundant DNA fragments from irradiated tumor cells, in addition to acting as integrators of multiple tumor antigens. Accumulating evidence indicates these DNA fragments from damaged cells are involved in downstream immune responses, but most of them are degraded in cells before incorporation into derived RT-EVs, thus the low abundance of DNA fragments limits immune responses of RT-EVs. Here, this study found that different radiations affected fates of DNA fragments in RT-EVs. Boron neutron capture therapy (BNCT) induced DNA accumulation in RT-EVs (BEVs) by causing more DNA breaks and DNA oxidation resisting nuclease degradation. This is attributed to the high-linear energy transfer (LET) properties of alpha particles from the neutron capture reaction of 10B. When being internalized by dendritic cells (DCs), BEVs activated the DNA sensing pathway, resulting in functional enhancements including antigen presentation, migration capacity, and cytokine secretion. After vaccination of the BEVs-educated DCs (BEV@BMDCs), the effector T cells significantly expanded and infiltrated into tumors, suggesting robust anti-tumor immune activation. BEV@BMDCs not only effectively inhibited the primary tumor growth and metastasis formation but also elicited long-term immune memory. In conclusion, a successful DC vaccine is provided as a promising candidate for tumor vaccine.


Asunto(s)
Terapia por Captura de Neutrón de Boro , Vacunas contra el Cáncer , Células Dendríticas , Vesículas Extracelulares , Vesículas Extracelulares/metabolismo , Vesículas Extracelulares/inmunología , Células Dendríticas/inmunología , Células Dendríticas/metabolismo , Animales , Ratones , Vacunas contra el Cáncer/inmunología , Terapia por Captura de Neutrón de Boro/métodos , Modelos Animales de Enfermedad , ADN/inmunología , ADN/metabolismo , Ratones Endogámicos C57BL , Humanos , Línea Celular Tumoral , Femenino
12.
Cell Biol Int ; 48(9): 1254-1265, 2024 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-39010645

RESUMEN

Migrasome is a newly discovered organelle composed of small vesicular structures enclosed in membrane structures. Since its discovery in 2014, migrasome has attracted increasing attention in cell biology due to its critical role in multiple disease processes. Its pivotal role in various disease processes, including cell migration, intercellular communication, removal of damaged mitochondria, embryogenesis localization, immune cell chemotaxis, and virus transmission, underscores its significance in biological systems. With research on migrasome steadily increasing, it becomes a unique resource for undergraduate cell biology education. For deeper understanding of migrasome, we applied a bibliometric approach. Here we conducted a comprehensive analysis of migrasome research by retrieving relevant literature from databases such as Web of Science, Scopus, and PubMed using the keywords "migrasome" or "migrasomes." Employing CiteSpace software and Prism, we analyzed annual publication trends, identified core authors and institutions, assessed national contributions, examined keywords, and scrutinized highly cited literature related to migrasome research. This study presents a comprehensive overview of migrasome research, elucidating its literature characteristics, key contributors, research hotspots, and emerging trends. By shedding light on the current status and future trajectories of migrasome research, we aim to provide valuable insights for teachers in cell biology education. We propose for the integration of migrasome research into undergraduate curricula to enhance the understanding of cell biology among premedical, medical, and biomedical students, thereby fostering a deeper appreciation for the intricate mechanisms governing cellular behavior and disease processes.


Asunto(s)
Biología Celular , Humanos , Orgánulos/metabolismo , Aprendizaje/fisiología , Animales , Movimiento Celular
13.
Heliyon ; 10(11): e31749, 2024 Jun 15.
Artículo en Inglés | MEDLINE | ID: mdl-38845946

RESUMEN

Background: In addition to damage to the lungs, coronavirus disease 2019 (COVID-19) can damage multiple organs, including the kidney. Our purpose was to analyze the research hotspots and trends in COVID-19 and kidney diseases using bibliometrics to help clarify the development direction of this field. Methods: We selected and extracted all relevant publications related to COVID-19 and the kidney from the Web of Science from December 1, 2019, to July 24, 2022. VOSviewer, RStudio, CiteSpace, and other software were used to visualize keywords, publishing trends, authors and their countries, and institutions in this field and perform the statistical analysis. Results: A total of 645 articles published in 220 journals were included in this study. The United States and China contributed the most publications and were most active in international cooperation. In addition to COVID-19 and severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), acute kidney injury (AKI), kidney transplant and mortality were the three keywords with the highest frequencies. In the initial stage of the COVID-19 outbreak, research focused on the clinical symptoms of COVID-19 and other macrocharacteristics, while in a later stage, the associations between SARS-CoV-2 infection and CKD and AKI, as well as the prognosis of patients with kidney disease or those who underwent kidney transplantation, gained more attention. The immune response and vaccines were also recent research hotspots. Conclusions: This bibliometric analysis provides a comprehensive overview of research on COVID-19 and kidney disease, which has received continuous, global attention. AKI, CKD, kidney transplantation, immune response and vaccines are among the hotspots in this field.

14.
Environ Sci Pollut Res Int ; 31(31): 43941-43955, 2024 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-38913261

RESUMEN

Development of carbon materials with high activity was important for rapid degradation of emerging pollutants. In this paper, a novel nanoscale zero-valent iron-copper bimetallic biochar (nZVIC-BC) was synthesized by carbothermal reduction of waste pine wood and copper-iron layered double hydroxides (LDHs). Characterization and analysis of its structural, elemental, crystalline, and compositional aspects using XRD, FT-IR, SEM, and TEM confirmed the successful preparation of nZVIC-BC and the high dispersion of Fe-Cu nanoparticles in an ordered carbon matrix. The experimental results showed that the catalytic activity of nZVIC-BC (Kobs of 0.0219 min-1) in the degradation of tetracycline (TC) in anoxic water environment was much higher than that of Fe-BC and Cu-BC; the effective degradation rate reached 85%. It was worth noting that the negative effects of Ca2+, Mg2+, and H2PO4- on TC degradation at ionic strengths greater than 15 mg/L were due to competition for active sites. Good stability and reusability were demonstrated in five consecutive cycle tests for low leaching of iron and copper. Combined with free radical quenching experiments and XPS analyses, the degradation of TC under air conditions was only 62%, with hydroxyl radicals (·OH) playing a dominant role. The synergistic interaction between Fe2+/Fe3+ and Cu0/Cu+/Cu2+ under nitrogen atmosphere enhances the redox cycling process; π-π adsorption, electron transfer processes, and active [H] were crucial for the degradation of TC; and possible degradation pathways of TC were deduced by LC-MS, which identified seven major aromatic degradation by-products. This study will provide new ideas and materials for the treatment of TC.


Asunto(s)
Carbón Orgánico , Cobre , Agua Subterránea , Hierro , Tetraciclina , Contaminantes Químicos del Agua , Cobre/química , Carbón Orgánico/química , Hierro/química , Contaminantes Químicos del Agua/química , Tetraciclina/química , Agua Subterránea/química
15.
Signal Transduct Target Ther ; 9(1): 153, 2024 Jun 28.
Artículo en Inglés | MEDLINE | ID: mdl-38937446

RESUMEN

Epidermal growth factor receptor (EGFR) is reportedly overexpressed in most esophageal squamous cell carcinoma (ESCC) patients, but anti-EGFR treatments offer limited survival benefits. Our preclinical data showed the promising antitumor activity of afatinib in EGFR-overexpressing ESCC. This proof-of-concept, phase II trial assessed the efficacy and safety of afatinib in pretreated metastatic ESCC patients (n = 41) with EGFR overexpression (NCT03940976). The study met its primary endpoint, with a confirmed objective response rate (ORR) of 39% in 38 efficacy-evaluable patients and a median overall survival of 7.8 months, with a manageable toxicity profile. Transcriptome analysis of pretreatment tumors revealed that neurotrophic receptor tyrosine kinase 2 (NTRK2) was negatively associated with afatinib sensitivity and might serve as a predictive biomarker, irrespective of EGFR expression. Notably, knocking down or inhibiting NTRK2 sensitized ESCC cells to afatinib treatment. Our study provides novel findings on the molecular factors underlying afatinib resistance and indicates that afatinib has the potential to become an important treatment for metastatic ESCC patients.


Asunto(s)
Afatinib , Resistencia a Antineoplásicos , Receptores ErbB , Neoplasias Esofágicas , Carcinoma de Células Escamosas de Esófago , Inhibidores de Proteínas Quinasas , Receptor trkB , Humanos , Afatinib/farmacología , Afatinib/uso terapéutico , Receptores ErbB/genética , Receptores ErbB/antagonistas & inhibidores , Receptores ErbB/metabolismo , Carcinoma de Células Escamosas de Esófago/genética , Carcinoma de Células Escamosas de Esófago/tratamiento farmacológico , Carcinoma de Células Escamosas de Esófago/patología , Resistencia a Antineoplásicos/genética , Resistencia a Antineoplásicos/efectos de los fármacos , Femenino , Masculino , Persona de Mediana Edad , Anciano , Neoplasias Esofágicas/genética , Neoplasias Esofágicas/tratamiento farmacológico , Neoplasias Esofágicas/patología , Inhibidores de Proteínas Quinasas/farmacología , Receptor trkB/genética , Receptor trkB/antagonistas & inhibidores , Línea Celular Tumoral , Adulto , Regulación Neoplásica de la Expresión Génica/efectos de los fármacos , Glicoproteínas de Membrana
16.
Int J Biol Macromol ; 274(Pt 1): 133327, 2024 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-38908620

RESUMEN

Adding natural bioactive ingredients to yogurt can improve the nutritional and physiological benefits. In this study, we used ultrasonic-assisted phlorotannin from Ascophyllum nodosum (A. nodosum) modified phycocyanin (PC) to form a complex (UPP) to produce a fortified fermented yogurt. The effects of PC and UPP on the structure, stability, and function of fermented yogurt within 7 days were assessed using physicochemical properties, texture analysis, rheological testing, 16S rDNA sequencing analysis, and lipidomics analysis. Molecular docking indicated that PC might bind to phlorotannin via ARG-77, ARG-84, LEU-120, ALA-81, CYS-82, and ASP-85 sites.When the mass ratio of the complex is 1:1, the ability of UPP1:1 to remove DPPH· scavenging ability in an acid environment increased by about 50 %. UPP1:1 with more acid stability changed the microstructure of the yogurt, enhanced the stability of the yogurt, improved the antioxidant properties, and inhibited the growth of harmful bacteria within 7 days. This work encouraged the extraction and use of phlorotannin from edible brown algae and offered a straightforward method for making yogurt supplemented with PC.


Asunto(s)
Antioxidantes , Ficocianina , Taninos , Yogur , Yogur/microbiología , Ficocianina/química , Taninos/química , Antioxidantes/farmacología , Antioxidantes/química , Simulación del Acoplamiento Molecular , Fermentación , Ascophyllum/química , Reología
17.
Int J Biol Macromol ; 275(Pt 2): 133253, 2024 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-38945709

RESUMEN

Chlorophyll (Chl) is the predominant pigment in green plants that can act as a food color and possesses various functional activities. However, its instability and rapid degradation on heating compromise the sensory qualities of its products. This study aimed to enhance the heat resistance of Chl by forming complex coacervates with two negatively charged polysaccharides, sodium alginate (SA) and K-carrageenan (KC). Dynamic light scattering and scanning electron microscopy analyses confirmed the formation of coacervates between Chl and the polysaccharides, whereas Fourier-transform infrared spectroscopy revealed that hydrogen bonding and electrostatic attraction were the primary forces behind complex formation. Electron spin resonance and thermodynamic studies further revealed that these complexes bolstered the thermal stability of Chl, with a maximum improvement of 70.38 % in t1/2 and a reduction of 50.72 % in the degradation rate constant. In addition, the antioxidant capacity of Chl was enhanced up to 35 %. Therefore, this study offers a novel approach to Chl preservation and suggests a viable alternative to artificial pigments in food products.


Asunto(s)
Clorofila , Polisacáridos , Termodinámica , Clorofila/química , Cinética , Polisacáridos/química , Antioxidantes/química , Alginatos/química , Color , Carragenina/química
18.
Regen Biomater ; 11: rbae059, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38911700

RESUMEN

Currently, the successful healing of critical-sized calvarial bone defects remains a considerable challenge. The immune response plays a key role in regulating bone regeneration after material grafting. Previous studies mainly focused on the relationship between macrophages and bone marrow mesenchymal stem cells (BMSCs), while dural cells were recently found to play a vital role in the calvarial bone healing. In this study, a series of 3D elastomers with different proportions of polycaprolactone (PCL) and poly(glycerol sebacate) (PGS) were fabricated, which were further supplemented with polydopamine (PDA) coating. The physicochemical properties of the PCL/PGS and PCL/PGS/PDA grafts were measured, and then they were implanted as filling materials for 8 mm calvarial bone defects. The results showed that a matched and effective PDA interface formed on a well-proportioned elastomer, which effectively modulated the polarization of M2 macrophages and promoted the recruitment of dural cells to achieve full-thickness bone repair through both intramembranous and endochondral ossification. Single-cell RNA sequencing analysis revealed the predominance of dural cells during bone healing and their close relationship with macrophages. The findings illustrated that the crosstalk between dural cells and macrophages determined the vertical full-thickness bone repair for the first time, which may be the new target for designing bone grafts for calvarial bone healing.

19.
Chin Med J (Engl) ; 2024 May 28.
Artículo en Inglés | MEDLINE | ID: mdl-38809055

RESUMEN

BACKGROUND: Spatiotemporal disparities exist in the disease burden of non-communicable diseases (NCDs) attributable to kidney dysfunction, which has been poorly assessed. The present study aimed to evaluate the spatiotemporal trends of the global burden of NCDs attributable to kidney dysfunction and to predict future trends. METHODS: Data on NCDs attributable to kidney dysfunction, quantified using deaths and disability-adjusted life-years (DALYs), were extracted from the Global Burden of Diseases Injuries, and Risk Factors (GBD) Study in 2019. Estimated annual percentage change (EAPC) of age-standardized rate (ASR) was calculated with linear regression to assess the changing trend. Pearson's correlation analysis was used to determine the association between ASR and Sociodemographic Index (SDI) for 21 GBD regions. A Bayesian age-period-cohort (BAPC) model was used to predict future trends up to 2040. RESULTS: Between 1990 and 2019, the absolute number of deaths and DALYs from NCDs attributable to kidney dysfunction increased globally. The death cases increased from 1,571,720 (95% uncertainty interval [UI]: 1,344,420-1,805,598) in 1990 to 3,161,552 (95% UI: 2,723,363-3,623,814) in 2019 for both sexes combined. Both the ASR of death and DALYs increased in Andean Latin America, the Caribbean, Central Latin America, Southeast Asia, Oceania, and Southern Sub-Saharan Africa. In contrast, the age-standardized metrics decreased in the high-income Asia Pacific region. The relationship between SDI and ASR of death and DALYs was negatively correlated. The BAPC model indicated that there would be approximately 5,806,780 death cases and 119,013,659 DALY cases in 2040 that could be attributed to kidney dysfunction. Age-standardized death of cardiovascular diseases (CVDs) and CKD attributable to kidney dysfunction were predicted to decrease and increase from 2020 to 2040, respectively. CONCLUSION: NCDs attributable to kidney dysfunction remain a major public health concern worldwide. Efforts are required to attenuate the death and disability burden, particularly in low and low-to-middle SDI regions.

20.
Front Immunol ; 15: 1347415, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38736878

RESUMEN

Objective: Emerging evidence has shown that gut diseases can regulate the development and function of the immune, metabolic, and nervous systems through dynamic bidirectional communication on the brain-gut axis. However, the specific mechanism of intestinal diseases and vascular dementia (VD) remains unclear. We designed this study especially, to further clarify the connection between VD and inflammatory bowel disease (IBD) from bioinformatics analyses. Methods: We downloaded Gene expression profiles for VD (GSE122063) and IBD (GSE47908, GSE179285) from the Gene Expression Omnibus (GEO) database. Then individual Gene Set Enrichment Analysis (GSEA) was used to confirm the connection between the two diseases respectively. The common differentially expressed genes (coDEGs) were identified, and the STRING database together with Cytoscape software were used to construct protein-protein interaction (PPI) network and core functional modules. We identified the hub genes by using the Cytohubba plugin. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analysis were applied to identify pathways of coDEGs and hub genes. Subsequently, receiver operating characteristic (ROC) analysis was used to identify the diagnostic ability of these hub genes, and a training dataset was used to verify the expression levels of the hub genes. An alternative single-sample gene set enrichment (ssGSEA) algorithm was used to analyze immune cell infiltration between coDEGs and immune cells. Finally, the correlation between hub genes and immune cells was analyzed. Results: We screened 167 coDEGs. The main articles of coDEGs enrichment analysis focused on immune function. 8 shared hub genes were identified, including PTPRC, ITGB2, CYBB, IL1B, TLR2, CASP1, IL10RA, and BTK. The functional categories of hub genes enrichment analysis were mainly involved in the regulation of immune function and neuroinflammatory response. Compared to the healthy controls, abnormal infiltration of immune cells was found in VD and IBD. We also found the correlation between 8 shared hub genes and immune cells. Conclusions: This study suggests that IBD may be a new risk factor for VD. The 8 hub genes may predict the IBD complicated with VD. Immune-related coDEGS may be related to their association, which requires further research to prove.


Asunto(s)
Biología Computacional , Demencia Vascular , Perfilación de la Expresión Génica , Redes Reguladoras de Genes , Enfermedades Inflamatorias del Intestino , Mapas de Interacción de Proteínas , Humanos , Enfermedades Inflamatorias del Intestino/genética , Enfermedades Inflamatorias del Intestino/inmunología , Biología Computacional/métodos , Demencia Vascular/genética , Demencia Vascular/inmunología , Bases de Datos Genéticas , Transcriptoma , Ontología de Genes
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