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1.
Nature ; 578(7793): 129-136, 2020 02.
Artículo en Inglés | MEDLINE | ID: mdl-32025019

RESUMEN

Transcript alterations often result from somatic changes in cancer genomes1. Various forms of RNA alterations have been described in cancer, including overexpression2, altered splicing3 and gene fusions4; however, it is difficult to attribute these to underlying genomic changes owing to heterogeneity among patients and tumour types, and the relatively small cohorts of patients for whom samples have been analysed by both transcriptome and whole-genome sequencing. Here we present, to our knowledge, the most comprehensive catalogue of cancer-associated gene alterations to date, obtained by characterizing tumour transcriptomes from 1,188 donors of the Pan-Cancer Analysis of Whole Genomes (PCAWG) Consortium of the International Cancer Genome Consortium (ICGC) and The Cancer Genome Atlas (TCGA)5. Using matched whole-genome sequencing data, we associated several categories of RNA alterations with germline and somatic DNA alterations, and identified probable genetic mechanisms. Somatic copy-number alterations were the major drivers of variations in total gene and allele-specific expression. We identified 649 associations of somatic single-nucleotide variants with gene expression in cis, of which 68.4% involved associations with flanking non-coding regions of the gene. We found 1,900 splicing alterations associated with somatic mutations, including the formation of exons within introns in proximity to Alu elements. In addition, 82% of gene fusions were associated with structural variants, including 75 of a new class, termed 'bridged' fusions, in which a third genomic location bridges two genes. We observed transcriptomic alteration signatures that differ between cancer types and have associations with variations in DNA mutational signatures. This compendium of RNA alterations in the genomic context provides a rich resource for identifying genes and mechanisms that are functionally implicated in cancer.


Asunto(s)
Regulación Neoplásica de la Expresión Génica , Neoplasias/genética , ARN/genética , Variaciones en el Número de Copia de ADN , ADN de Neoplasias , Genoma Humano , Genómica , Humanos , Transcriptoma
2.
Cell Mol Life Sci ; 81(1): 436, 2024 Oct 16.
Artículo en Inglés | MEDLINE | ID: mdl-39414635

RESUMEN

BACKGROUND: The ligamentum flavum (LF) is an important anatomical structure of the spine. Ossification of the LF (OLF) has become the leading cause of thoracic spinal stenosis. Circular RNAs (circRNAs) and N6-methyladenosine (m6A) modification are reported to be associated with several human diseases. However, the role of circRNAs and m6A modification in the pathogenesis of OLF has not been fully investigated. Here, we aimed to explore the vital function of circRNAs and m6A modification in OLF. MATERIALS AND METHODS: We analysed the circRNA expression of 4 OLF tissues and 4 normal LF tissues using bioinformatic analysis and identified circCDK14 for further analysis. We investigated the effects of circCDK14 on the osteogenic differentiation of LF cells. We observed that circCDK14 regulated its target genes by binding to miRNAs as a miRNA sponge. Moreover, the circRNA pull-down assay indicated that RNA-binding proteins might regulate the expression of circCDK14 via m6A modification. RESULTS: CircCDK14 was significantly upregulated in OLF tissues compared to normal LF tissues. Overexpression of circCDK14 promoted the osteogenic differentiation of LF cells. Mechanistically, CircCDK14 promoted the expression of ALF transcription elongation Factor 4 (AFF4) by serving as a sponge for miR-93-5p. Moreover, Wilms tumour 1-associated protein (WTAP) increased the stability of circCDK14 via N6-methyladenosine modification. CONCLUSION: The m6A-modified CircCDK14 binding to miR-93-5p played an important role in the osteogenesis of LF cells by targeting AFF4, providing a promising therapeutic target for OLF.


Asunto(s)
Adenosina , Diferenciación Celular , Epigénesis Genética , Ligamento Amarillo , MicroARNs , Osteogénesis , ARN Circular , Humanos , Adenosina/análogos & derivados , Adenosina/metabolismo , ARN Circular/genética , ARN Circular/metabolismo , Ligamento Amarillo/metabolismo , Ligamento Amarillo/patología , Osteogénesis/genética , MicroARNs/genética , MicroARNs/metabolismo , Diferenciación Celular/genética , Proteínas de Unión al ADN/metabolismo , Proteínas de Unión al ADN/genética
3.
Cell Mol Life Sci ; 81(1): 299, 2024 Jul 13.
Artículo en Inglés | MEDLINE | ID: mdl-39001944

RESUMEN

BACKGROUND: Acetaminophen (APAP) overdose is a significant contributor to drug-induced liver injury worldwide. G-protein-coupled receptor 116 (GPR116) is an important homeostatic maintenance molecule in the body, but little is known about its role in APAP-induced liver injury (AILI). METHODS: GPR116 expression was determined in both human and mouse AILI models. Hepatic function and damage response were analyzed in hepatocyte-specific GPR116 deletion (GPR116△HC) mice undergoing APAP challenge. RNA-sequencing, immunofluorescence confocal, and co-immunoprecipitation (CO-IP) were employed to elucidate the impact and underlying mechanisms of GPR116 in AILI. RESULTS: Intrahepatic GPR116 was upregulated in human and mice with AILI. GPR116△HC mice were vulnerable to AILI compared to wild-type mice. Overexpression of GPR116 effectively mitigated AILI in wild-type mice and counteracted the heightened susceptibility of GPR116△HC mice to APAP. Mechanistically, GPR116 inhibits the binding immunoglobulin protein (BiP), a critical regulator of ER function, through its interaction with ß-arrestin1, thereby mitigating ER stress during the early stage of AILI. Additionally, the activation of GPR116 by ligand FNDC4 has been shown to confer a protective effect against early hepatotoxicity caused by APAP in murine model. CONCLUSIONS: Upregulation of GPR116 on hepatocytes inhibits ER stress by binding to ß-arrestin1, protecting mice from APAP-induced hepatotoxicity. GPR116 may serve as a promising therapeutic target for AILI.


Asunto(s)
Acetaminofén , Enfermedad Hepática Inducida por Sustancias y Drogas , Estrés del Retículo Endoplásmico , Receptores Acoplados a Proteínas G , Animales , Humanos , Masculino , Ratones , Acetaminofén/efectos adversos , Enfermedad Hepática Inducida por Sustancias y Drogas/metabolismo , Enfermedad Hepática Inducida por Sustancias y Drogas/patología , Enfermedad Hepática Inducida por Sustancias y Drogas/genética , Modelos Animales de Enfermedad , Estrés del Retículo Endoplásmico/efectos de los fármacos , Hepatocitos/metabolismo , Hepatocitos/efectos de los fármacos , Hepatocitos/patología , Hígado/metabolismo , Hígado/patología , Hígado/efectos de los fármacos , Ratones Endogámicos C57BL , Receptores Acoplados a Proteínas G/metabolismo , Receptores Acoplados a Proteínas G/genética
4.
J Am Chem Soc ; 146(38): 26379-26386, 2024 Sep 25.
Artículo en Inglés | MEDLINE | ID: mdl-39267584

RESUMEN

Breaking the trade-off between activity and stability of supported metal catalysts has been a long-standing challenge in catalysis, especially for metal nanoparticles (NPs) with high hydrogenation activity but poor stability. Herein, we report a porous poly(divinylbenzene) polymer-supported Pd NP catalyst (Pd/PDVB) with both high activity and excellent stability for the solvent-free hydrogenation of nitrobenzene, even at ambient temperature (25 °C) and H2 pressure (0.1 MPa). Pd/PDVB gave a turnover frequency as high as 22,632 h-1 at 70 °C and 0.4 MPa, exceeding 5556 h-1 of the classical Pd/C catalyst under equivalent conditions. Mechanistic studies reveal that the polymer support benefits the desorption of the aniline product from the Pd surface, which is crucial for rapid hydrogenation under solvent-free conditions. In addition, the polymer support in Pd/PDVB efficiently hindered Pd leaching, resulting in good stability.

5.
Kidney Int ; 106(2): 214-225, 2024 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-38797324

RESUMEN

Environmental pollution significantly impacts global disease burden. However, the contribution of environmental pollution to kidney disease is often overlooked in nephrology. This review examines the growing body of research demonstrating the significant impacts of environmental pollutants, with a focus on air pollution as a primary factor, and acknowledges the roles of other pollutants, such as heavy metals, in the development and progression of kidney diseases. Short-term exposure to air pollution is linked with an increased risk of kidney disease-related events, including hospital admissions, and death, predominantly occurring in vulnerable populations. In contrast, long-term exposure, even at low to moderate levels, may lead to progressive pathophysiological changes, such as chronic systemic inflammation and oxidative stress, that contribute to the development of kidney disease. In addition, air pollution may exacerbate traditional kidney disease risk factors such as hypertension and diabetes, thereby accelerating disease progression. The review also explores how climate change may interact with various pollutants, including air pollution, influencing kidney disease indirectly. The examined evidence underscores the urgent need for an interdisciplinary approach to research further into environmental kidney disease. Environmental health policies could play a crucial role in the prevention, intervention, and improvement of kidney health worldwide.


Asunto(s)
Contaminación del Aire , Cambio Climático , Exposición a Riesgos Ambientales , Enfermedades Renales , Humanos , Factores de Riesgo , Exposición a Riesgos Ambientales/efectos adversos , Enfermedades Renales/inducido químicamente , Enfermedades Renales/epidemiología , Enfermedades Renales/etiología , Contaminación del Aire/efectos adversos , Progresión de la Enfermedad , Contaminantes Atmosféricos/efectos adversos , Contaminación Ambiental/efectos adversos
6.
Cancer ; 130(17): 2968-2977, 2024 Sep 01.
Artículo en Inglés | MEDLINE | ID: mdl-38703012

RESUMEN

BACKGROUND: Previous studies involving risk-benefit analysis of trastuzumab deruxtecan (DS-8201) have indicated the benefit of this treatment, although it may increase the risk of interstitial lung disease (ILD) and/or pneumonitis in certain patients. This study aimed to assess the safety of DS-8201. METHODS: A search was done for relevant articles in four electronic databases: PubMed, Embase, the Cochrane Library, and ClinicalTrials.gov. All reports published up until November 2, 2022, were included, and study types were restricted to clinical trials; the last search was then updated to January 10, 2023. We also assessed the quality of the literature with the Cochrane Handbook for Systematic Reviews of Interventions and the Methodological Index for Non-Randomized Studies tool, and then performed a meta-analysis with R version 4.2.1. RESULTS: A total of 1428 patients reported in 13 articles were included in this study. The analysis revealed that the most common all-grade treatment-emergent adverse events (TEAEs) were nausea and fatigue. The most common TEAE of grade 3 or above (grade ≥3) was neutropenia. The incidences of ILD and/or pneumonitis for all-grade and grade ≥3 TEAEs were 12.5% and 2.2%, respectively. CONCLUSIONS: This comprehensive summary of the incidence of TEAEs associated with DS-8201 in clinical trials provides an important guide for clinicians. The most common TEAEs were gastrointestinal reactions and fatigue; meanwhile, the most common grade ≥3 TEAE was hematological toxicity. ILD and/or pneumonitis were specific adverse drug reactions associated with DS-8201, of which physicians should be particularly aware for their higher morbidity and rates of grade ≥3 TEAEs.


Asunto(s)
Enfermedades Pulmonares Intersticiales , Neumonía , Trastuzumab , Humanos , Antineoplásicos Inmunológicos/efectos adversos , Antineoplásicos Inmunológicos/uso terapéutico , Neoplasias de la Mama/tratamiento farmacológico , Camptotecina/análogos & derivados , Inmunoconjugados/efectos adversos , Inmunoconjugados/uso terapéutico , Enfermedades Pulmonares Intersticiales/inducido químicamente , Neumonía/inducido químicamente , Neumonía/epidemiología , Trastuzumab/efectos adversos , Trastuzumab/uso terapéutico
7.
Anal Chem ; 96(41): 16269-16279, 2024 Oct 15.
Artículo en Inglés | MEDLINE | ID: mdl-39347825

RESUMEN

Axl is an important receptor tyrosine protein kinase that plays a key role in the development and progression of various diseases, such as cancer and inflammation. Developing a highly sensitive Axl detection method can help improve accuracy, better address-specific clinical needs, and guide personalized treatment. In this study, a CHA-CRISPR/Cas13 fluorescence probe was established using Axl-specific aptamers as a mediator to displace the polynucleotide chain (TA). Through TA construction, an entropy-driven nucleotide catalytic hairpin assembly system was created to cyclically release RNA that activates clustered regularly interspaced short palindromic repeats (CRISPR)/Cas13 activity, triggering its cleavage activity. The activated CRISPR/Cas13 system cleaves the reporter labeled with BHQ1 and FAM at both ends, leading to the recovery of FAM fluorescence. Based on the optimization design using the free energy (△G) and secondary structure software simulation results of the nucleic acid sequence, the fluorescence intensity of the probe is proportional to the concentration of Axl. Results showed a good linear relationship between fluorescence intensity increment and log CAxl (CAxl in the range of 3.33-667 pM, r = 0.9907). The probe exhibited ultrahigh sensitivity with a detection limit of 0.84 pM. It was successfully applied in the detection of human serum samples, showing a higher Axl level in cervical cancer patients compared to breast cancer patients. The probe was also successfully applied in the imaging of various tumor cells, consistent with serum detection results. In conclusion, this probe represents an effective new method for detecting Axl, demonstrating outstanding specificity and sensitivity. It provides technological support for tumor diagnosis and shows the potential for detecting circulating tumor cells in blood through cell imaging.


Asunto(s)
Tirosina Quinasa del Receptor Axl , Sistemas CRISPR-Cas , Colorantes Fluorescentes , Proteínas Proto-Oncogénicas , Proteínas Tirosina Quinasas Receptoras , Humanos , Proteínas Tirosina Quinasas Receptoras/metabolismo , Proteínas Proto-Oncogénicas/metabolismo , Colorantes Fluorescentes/química , Técnicas de Amplificación de Ácido Nucleico/métodos , Límite de Detección , Técnicas Biosensibles/métodos , Espectrometría de Fluorescencia
8.
Plant Cell Environ ; 2024 Jun 03.
Artículo en Inglés | MEDLINE | ID: mdl-38828861

RESUMEN

Cadmium (Cd) is a toxic metal that poses serious threats to human health. Rice is a major source of dietary Cd but how rice plants transport Cd to the grain is not fully understood. Here, we characterize the function of the ZIP (ZRT, IRT-like protein) family protein, OsZIP2, in the root-to-shoot translocation of Cd and intervascular transfer of Cd in nodes. OsZIP2 is localized at the plasma membrane and exhibited Cd2+ transport activity when heterologously expressed in yeast. OsZIP2 is strongly expressed in xylem parenchyma cells in roots and in enlarged vascular bundles in nodes. Knockout of OsZIP2 significantly enhanced root-to-shoot translocation of Cd and alleviated the inhibition of root elongation by excess Cd stress; whereas overexpression of OsZIP2 decreased Cd translocation to shoots and resulted in Cd sensitivity. Knockout of OsZIP2 increased Cd allocation to the flag leaf but decreased Cd allocation to the panicle and grain. We further reveal that the variation of OsZIP2 expression level contributes to grain Cd concentration among rice germplasms. Our results demonstrate that OsZIP2 functions in root-to-shoot translocation of Cd in roots and intervascular transfer of Cd in nodes, which can be used for breeding low Cd rice varieties.

9.
Hum Reprod ; 39(8): 1599-1607, 2024 Aug 01.
Artículo en Inglés | MEDLINE | ID: mdl-38906835

RESUMEN

Ovarian aging, a natural process in women and various other female mammals as they age, is characterized by a decline in ovarian function and fertility due to a reduction in oocyte reserve and quality. This phenomenon is believed to result from a combination of genetic, hormonal, and environmental factors. While these factors collectively contribute to the shaping of ovarian aging, the substantial impact and intricate interplay of chronic inflammation in this process have been somewhat overlooked in discussions. Chronic inflammation, a prolonged and sustained inflammatory response persisting over an extended period, can exert detrimental effects on tissues and organs. This review delves into the novel hallmark of aging-chronic inflammation-to further emphasize the primary characteristics of ovarian aging. It endeavors to explore not only the clinical symptoms but also the underlying mechanisms associated with this complex process. By shining a spotlight on chronic inflammation, the aim is to broaden our understanding of the multifaceted aspects of ovarian aging and its potential clinical implications.


Asunto(s)
Envejecimiento , Inflamación , Ovario , Humanos , Femenino , Envejecimiento/fisiología , Ovario/fisiopatología , Enfermedad Crónica , Animales , Reserva Ovárica/fisiología
10.
Opt Lett ; 49(10): 2845-2848, 2024 May 15.
Artículo en Inglés | MEDLINE | ID: mdl-38748177

RESUMEN

A baud-rate sampling timing recovery (TR) scheme with receiver IQ skew tolerance is proposed and experimentally demonstrated. The proposed scheme performs independent TR for the in-phase and quadrature (IQ) tributary signals, thereby tracking the sampling phase error while naturally compensating for receiver IQ skew. The robustness of the IQ-independent TR to frequency offset (FO) and phase noise is theoretically analyzed. To address IQ misalignment caused by the IQ-independent TR, the use of pseudo-noise (PN) sequences for IQ frame synchronization is proposed. The proposed scheme achieves accurate timing recovery with hardware-efficient baud-rate sampling in the presence of receiver IQ skew, laying the foundation for stable performance of subsequent baud-rate equalization. The performance of the scheme is validated in a 56 GBaud polarization division multiplexed (PDM) 16QAM coherent experimental system. Experimental results demonstrate that the proposed scheme achieves similar BER performance to the modified Gardner + real-valued multiple-input multiple-output (RVMIMO) (@2 SPS) scheme. Moreover, the proposed scheme exhibits robustness to arbitrary IQ skew compared to the ABSPD + RVMIMO (@1 SPS) scheme.

11.
Vox Sang ; 119(2): 144-154, 2024 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-38152043

RESUMEN

BACKGROUND AND OBJECTIVES: The present study aims to evaluate the iron stores in plasmapheresis donors and develop and validate an iron deficiency (ID) risk prediction model for plasmapheresis donors with potential or existing ID. MATERIALS AND METHODS: We assessed plasmapheresis donors' serum ferritin (SF) and haemoglobin (Hb) levels. The candidate factors showing significant differences in the multivariate logistic regression analysis were used to establish a risk prediction scoring system. The participants were divided into a training cohort and an internal validation cohort in a 7:3 ratio. Additional plasmapheresis donors from a different station were recruited for external validation. RESULTS: The SF levels in both male and female donors in the high-frequency group were significantly lower than those of new donors (male: p < 0.001; female: p = 0.008). The prevalence of ID in female regular donors with a high frequency was significantly higher than that in new donors (33.1% vs. 24.6%; odds ratio = 1.209 [95% CI: 1.035-1.412]). Donation frequency, age, Hb, body mass index and being pre-menopausal were identified as independent risk factors for ID (p < 0.05). The developed model exhibited good discrimination ability (area under the receiver operating characteristic curve >0.7) and calibration (p > 0.05) in development, internal validation cohorts and external validation cohorts. CONCLUSION: A higher donation frequency has been associated with reduced SF levels and an increased risk of ID in women. The developed ID risk prediction model demonstrates moderate discriminative power and good model fitting, suggesting its potential clinical utility.


Asunto(s)
Anemia Ferropénica , Deficiencias de Hierro , Humanos , Masculino , Femenino , Ferritinas , Donantes de Sangre , Plasmaféresis/efectos adversos , China/epidemiología , Hemoglobinas/análisis , Anemia Ferropénica/epidemiología
12.
Physiol Plant ; 176(2): e14280, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38644527

RESUMEN

Inadequate reference databases in RNA-seq analysis can hinder data utilization and interpretation. In this study, we have successfully constructed a high-quality reference transcript dataset, ZjRTD1.0, for Zoysia japonica, a widely-used turfgrass with exceptional tolerance to various abiotic stress, including low temperatures and salinity. This dataset comprises 113,089 transcripts from 57,143 genes. BUSCO analysis demonstrates exceptional completeness (92.4%) in ZjRTD1.0, with reduced proportions of fragmented (3.3%) and missing (4.3%) orthologs compared to prior datasets. ZjRTD1.0 enables more precise analyses, including transcript quantification and alternative splicing assessments using public datasets, which identified a substantial number of differentially expressed transcripts (DETs) and differential alternative splicing (DAS) events, leading to several novel findings on Z. japonica's responses to abiotic stresses. First, spliceosome gene expression influenced alternative splicing significantly under abiotic stress, with a greater impact observed during low-temperature stress. Then, a significant positive correlation was found between the number of differentially expressed genes (DEGs) encoding protein kinases and the frequency of DAS events, suggesting the role of protein phosphorylation in regulating alternative splicing. Additionally, our results suggest possible involvement of serine/arginine-rich (SR) proteins and heterogeneous nuclear ribonucleoproteins (hnRNPs) in generating inclusion/exclusion isoforms under low-temperature stress. Furthermore, our investigation revealed a significantly enhanced overlap between DEGs and differentially alternatively spliced genes (DASGs) in response to low-temperature stress, suggesting a unique co-regulatory mechanism governing transcription and splicing in the context of low-temperature response. In conclusion, we have proven that ZjRTD1.0 will serve as a reliable and useful resource for future transcriptomic analyses in Z. japonica.


Asunto(s)
Empalme Alternativo , Frío , Poaceae , Empalme Alternativo/genética , Perfilación de la Expresión Génica , Regulación de la Expresión Génica de las Plantas/genética , Proteínas de Plantas/genética , Proteínas de Plantas/metabolismo , Poaceae/genética , Estrés Fisiológico/genética , Transcriptoma/genética
13.
Thromb J ; 22(1): 27, 2024 Mar 19.
Artículo en Inglés | MEDLINE | ID: mdl-38504248

RESUMEN

C-type lectin-like receptor-2 (CLEC-2) is a member of the C-type lectin superfamily of cell surface receptors. The first confirmed endogenous and exogenous ligands of CLEC-2 are podoplanin and rhodocytin, respectively. CLEC-2 is expressed on the surface of platelets, which participates in platelet activation and aggregation by binding with its ligands. CLEC-2 and its ligands are involved in pathophysiological processes, such as atherosclerosis, cancer, inflammatory thrombus status, maintenance of vascular wall integrity, and cancer-related thrombosis. In the last 5 years, different anti- podoplanin antibody types have been developed for the treatment of cancers, such as glioblastoma and lung cancer. New tests and new diagnostics targeting CLEC-2 are also discussed. CLEC-2 mediates thrombosis in various pathological states, but CLEC-2-specific deletion does not affect normal hemostasis, which would provide a new therapeutic tool for many thromboembolic diseases. The CLEC-2-podoplanin interaction is a target for cancer treatment. CLEC-2 may be applied in clinical practice and play a therapeutic role.

15.
Environ Res ; 260: 119553, 2024 Nov 01.
Artículo en Inglés | MEDLINE | ID: mdl-38964573

RESUMEN

Evidence regarding the link between long-term ambient ozone (O3) exposure and childhood sleep disorders is little. This study aims to examine the associations between long-term exposure to O3 and sleep disorders in children. We conducted a population-based cross-sectional survey, including 185,428 children aged 6-18 years in 173 schools across 14 Chinese cities during 2012 and 2018. Parents or guardians completed a checklist using Sleep Disturbance Scale for Children, and O3 exposure at residential and school addresses was estimated using a satellite-based spatiotemporal model. We used generalized linear mixed models to test the associations with adjustment for factors including socio-demographic variables, lifestyle, meteorology and multiple pollutants. Mean concentrations of O3, particulate matter with diameters ≤2.5 mm (PM2.5) and nitrogen dioxide (NO2) were 89.0 µg/m3, 42.5 µg/m3 and 34.4 µg/m3, respectively. O3 and NO2 concentrations were similar among provinces, while PM2.5 concentration varied significantly among provinces. Overall, 19.4% of children had at least one sleep disorder. Long-term exposure to O3 was positively associated with odds of sleep disorders for all subtypes. For example, each interquartile increment in home-school O3 concentrations was associated with a higher odds ratio for global sleep disorder, at 1.22 (95% confidence interval: 1.18, 1.26). Similar associations were observed for sleep disorder subtypes. The associations remained similar after adjustment for PM2.5 and NO2. Moreover, these associations were heterogeneous regionally, with more prominent associations among children residing in southeast region than in northeast and northwest regions in China. We concluded that long-term exposure to O3 is positively associated with risks of childhood sleep disorders. These associations varied by geographical region of China.


Asunto(s)
Contaminantes Atmosféricos , Exposición a Riesgos Ambientales , Ozono , Trastornos del Sueño-Vigilia , Humanos , Ozono/análisis , Ozono/efectos adversos , Niño , China/epidemiología , Adolescente , Masculino , Femenino , Contaminantes Atmosféricos/análisis , Exposición a Riesgos Ambientales/efectos adversos , Trastornos del Sueño-Vigilia/epidemiología , Trastornos del Sueño-Vigilia/inducido químicamente , Estudios Transversales , Material Particulado/análisis , Dióxido de Nitrógeno/análisis , Dióxido de Nitrógeno/efectos adversos , Contaminación del Aire/efectos adversos , Contaminación del Aire/análisis
16.
J Thromb Thrombolysis ; 57(1): 143-154, 2024 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-37548902

RESUMEN

The aim of this study was to identify the optimal anti-platelet therapy in older acute coronary syndrome (ACS) patients with a mean age ≥ 60 years by comparing the efficacy and safety of different anti-platelet therapies. The selection of antiplatelet therapy in older patients with ACS is a clinical challenge. Numerous evidences indicate that the de-escalation of dual anti-platelet therapy (DAPT) or P2Y12 inhibitor monotherapy may reduce bleeding risk without increasing thrombotic events. However, there is a lack of systematic reviews and optimal strategy analysis regarding older ACS patients. Randomized controlled trials (RCTs) of anti-platelet therapy in older ACS patients were identified. Major adverse cardiovascular events (MACE) were the primary outcome. Secondary outcomes included all death, cardiovascular death, myocardial infarction, stroke, stent thrombosis, and trial-defined major bleeding. Frequentist and Bayesian network meta-analyses were conducted. Treatments were ranked on posterior probability. Summary odds ratios (ORs) were estimated using Bayesian network meta-analysis. A total of 12 RCTs including 59,284 older ACS patients treated with five anti-platelet strategies were included. Ticagrelor monotherapy after 3 months DAPT was comparable to the other strategies (OR 0.73; 95% CI 0.32-1.6) in terms of MACE risk. Additionally, P score analysis and SUCRA Bayesian analysis showed that it was the most beneficial treatment for all deaths, cardiovascular death and revascularization. For safety, although there was no significant difference in direct comparisons, both SUCRA Bayesian (0.806) and P score (0.519) analysis suggested that ticagrelor monotherapy was the safest strategy. The current evidence demonstrated that ticagrelor monotherapy after 3 months DAPT may be a promising approach for achieving a more favorable balance between risk and benefit for older ACS patients, with a relatively low bleeding risk and without an increased risk of MACE events. Moreover, it remains the preferred option for clinical outcomes such as all death, CV death and revascularization. Further high-quality and long-term studies are required to validate anti-platelet therapies among older ACS patients.


Asunto(s)
Síndrome Coronario Agudo , Intervención Coronaria Percutánea , Trombosis , Humanos , Anciano , Persona de Mediana Edad , Inhibidores de Agregación Plaquetaria/efectos adversos , Ticagrelor/uso terapéutico , Síndrome Coronario Agudo/tratamiento farmacológico , Metaanálisis en Red , Ensayos Clínicos Controlados Aleatorios como Asunto , Revisiones Sistemáticas como Asunto , Hemorragia/inducido químicamente , Hemorragia/tratamiento farmacológico , Trombosis/tratamiento farmacológico , Resultado del Tratamiento
17.
Sleep Breath ; 28(2): 823-833, 2024 May.
Artículo en Inglés | MEDLINE | ID: mdl-38147288

RESUMEN

PURPOSE: Circadian disruption has been a common issue due to modern lifestyles. Ventricular remodeling (VR) is a pivotal progressive pathologic change after acute myocardial infarction (AMI) and circadian disruption may have a negative influence on VR according to the latest research. Whether or not Guanxin V (GXV) has a positive effect on VR after AMI with circadian disruption drew our interest. METHODS: Rats were randomly divided into a sham group, an AMI group, an AMI with circadian disruption group, and an AMI with circadian disruption treated with the GXV group according to a random number table. RNA sequencing (RNA-Seq) was utilized to confirm the different expressed genes regulated by circadian disruption. Cardiac function, inflammation factors, pathological evaluation, and mitochondrial dynamics after the intervention were conducted to reveal the mechanism by which GXV regulated VR after AMI with circadian disruption. RESULTS: RNA-Seq demonstrated that NF-κB was up-regulated by circadian disruption in rats with AMI. Functional and pathological evaluation indicated that compared with the AMI group, circadian disruption was associcataed with deteriorated cardiac function, expanded infarcted size, and exacerbated fibrosis and cardiomyocyte apoptosis. Further investigation demonstrated that mitochondrial dynamics imbalance was induced by circadian disruption. GXV intervention reversed the inflammatory status including down-regulation of NF-κB. Reserved cardiac function, limited infarct size, and ameliorated fibrosis and apoptosis were also observed in the GXV treated group. GXV maintained mitochondrial fission/fusion imbalance through suppressed expression of mitochondrial fission-associated proteins. CONCLUSION: The study findings suggest that identified mitochondrial dysfunctions may underlie the link between circadian disruption and VR. GXV may exert cardioprotection after AMI with circadian disruption through regulating mitochondrial dynamics.


Asunto(s)
Dinámicas Mitocondriales , Infarto del Miocardio , Remodelación Ventricular , Animales , Infarto del Miocardio/patología , Infarto del Miocardio/tratamiento farmacológico , Infarto del Miocardio/metabolismo , Infarto del Miocardio/genética , Infarto del Miocardio/fisiopatología , Remodelación Ventricular/efectos de los fármacos , Remodelación Ventricular/fisiología , Ratas , Dinámicas Mitocondriales/efectos de los fármacos , Masculino , Ratas Sprague-Dawley , Medicamentos Herbarios Chinos/farmacología , Trastornos Cronobiológicos/tratamiento farmacológico , Trastornos Cronobiológicos/fisiopatología , Trastornos Cronobiológicos/genética , Modelos Animales de Enfermedad
18.
Ecotoxicol Environ Saf ; 275: 116245, 2024 Apr 15.
Artículo en Inglés | MEDLINE | ID: mdl-38520807

RESUMEN

BACKGROUND: Information on the relation of air pollution with non-alcoholic fatty liver disease (NAFLD) is scarce. We thus conducted a large cross-sectional study in Asia to investigate the role of air pollution in NAFLD. METHODS: We recruited 329,048 adults (mean age: 41.0 years) without other liver disease (hepatitis and cirrhosis) or excessive alcohol consumption in Taiwan and Hong Kong from 2001 to 2018. The concentrations of nitrogen dioxide (NO2) and ozone (O3) were estimated using a space-time regression model, and the concentrations of fine particulate matter (PM2.5) was evaluated using a satellite-based spatio-temporal model. NAFLD was determined using either the fatty liver index (FLI) or the hepatic steatosis index (HSI). The NAFLD-related advanced fibrosis was defined according to BARD score or the fibrosis-4 (FIB-4). A logistic regression model was adopted to explore the relationships of ambient air pollution with the odds of NAFLD and NAFLD-related advanced fibrosis. RESULTS: We found positive relationships between PM2.5 and the odds of NAFLD and advanced fibrosis, with every standard deviation (SD, 7.5 µg/m3) increases in PM2.5 exposure being associated with a 10% (95% confidence interval [CI]: 9%-11%) increment in the prevalence of NAFLD and an 8% (95% CI: 7%-9%) increment in the prevalence of advanced fibrosis. Similarly, the prevalence of NAFLD and advanced fibrosis increased by 8% (95% CI: 7%-9%) and 7% (95% CI: 6%-8%) with per SD (18.9 µg/m3) increasement in NO2 concentration, respectively. Additionally, for every SD (9.9 µg/m3) increasement in O3 concentration, the prevalence of NAFLD and advanced fibrosis decreased by 12% (95% CI: 11%-13%) and 11% (95% CI: 9%-12%), respectively. CONCLUSION: Higher ambient PM2.5 and NO2 are linked with higher odds of NAFLD and advanced fibrosis. Our findings indicate that reducing PM2.5 and NO2 concentrations may be an effective way for preventing NAFLD. Further studies on O3 are warranted.


Asunto(s)
Contaminantes Atmosféricos , Contaminación del Aire , Enfermedad del Hígado Graso no Alcohólico , Adulto , Humanos , Enfermedad del Hígado Graso no Alcohólico/epidemiología , Enfermedad del Hígado Graso no Alcohólico/etiología , Estudios Transversales , Hong Kong/epidemiología , Taiwán/epidemiología , Dióxido de Nitrógeno , Contaminación del Aire/efectos adversos , Contaminación del Aire/análisis , Cirrosis Hepática/epidemiología , Cirrosis Hepática/etiología , Material Particulado/efectos adversos , Material Particulado/análisis , Contaminantes Atmosféricos/análisis , Exposición a Riesgos Ambientales/efectos adversos , Exposición a Riesgos Ambientales/análisis
19.
J Am Soc Nephrol ; 34(11): 1793-1811, 2023 11 01.
Artículo en Inglés | MEDLINE | ID: mdl-37487015

RESUMEN

ABSTRACT: The interaction between the kidney and the coagulation system greatly affects each other because of the abundant vessel distribution and blood perfusion in the kidney. Clinically, the risks of complicated thrombosis and bleeding have become important concerns in the treatment of nephropathies, especially nephrotic syndrome, CKD, ESKD, and patients with nephropathy undergoing RRTs. Adverse effects of anticoagulant or procoagulant therapies in patients with nephropathy, especially anticoagulation-related nephropathy, heparin-induced thrombocytopenia, and bleeding, seriously worsen the prognosis of patients, which have become challenges for clinicians. Over the decades, the interaction between the kidney and the coagulation system has been widely studied. However, the effects of the kidney on the coagulation system have not been systematically investigated. Although some coagulation-related proteins and signaling pathways have been shown to improve coagulation abnormalities while avoiding additional kidney damage in certain kidney diseases, their potential as anticoagulation targets in nephropathy requires further investigation. Here, we review the progression of research on the crosstalk between the coagulation system and kidney diseases and systematically analyze the significance and shortcomings of previous studies to provide new sight into future research. In addition, we highlight the status of clinical treatment for coagulation disorder and nephropathy caused by each other, indicating guidance for the formulation of therapeutic strategies or drug development.


Asunto(s)
Trastornos de la Coagulación Sanguínea , Síndrome Nefrótico , Trombosis , Humanos , Trastornos de la Coagulación Sanguínea/complicaciones , Trastornos de la Coagulación Sanguínea/tratamiento farmacológico , Anticoagulantes/efectos adversos , Riñón , Síndrome Nefrótico/tratamiento farmacológico , Trombosis/complicaciones , Factores de Coagulación Sanguínea , Hemorragia , Heparina/efectos adversos
20.
Int J Biometeorol ; 68(9): 1847-1855, 2024 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-38819443

RESUMEN

Febrile seizures are convulsions predominately occurring in young children. The effects of various exposomes, including influenza infection and external environmental factors, on febrile seizures have not been well-studied. In this study, we elucidated the relationships between ambient temperature, air pollutants, influenza infection, and febrile seizures using 22-year territory-wide hospitalization data in Hong Kong. The aggregated data were matched with the meteorological records and air pollutant concentrations. All-type and type-specific influenza-like illness positive (ILI+) rates were used as proxies for influenza activity. Distributed lag non-linear model in conjunction with the quasi-poisson generalized additive model was used to examine the associations of interest. According to the results, all-type influenza infections were significantly associated with an increased risk of hospital admissions for febrile seizures (cumulative adjusted relative risk [ARR] = 1.59 at 95th percentile vs. 0; 95% CI, 1.51-1.68). The effect of ILI + A/H3N2 on febrile seizure was more pronounced than other type-specific ILI + rates. A low mean ambient temperature was identified as a significant risk factor for febrile seizures (cumulative ARR = 1.50 at 5th percentile vs. median; 95% CI, 1.35-1.66), while the redox-weighted oxidant capacity and sulfur dioxide were not associated with febrile seizures. In conclusion, our study underscores that influenza infections and exposure to cold conditions were related to an increased risk of febrile seizures in children. Thus, we advocate for influenza vaccination before the onset of the cold season for children to mitigate the burden of febrile seizures.


Asunto(s)
Exposoma , Gripe Humana , Convulsiones Febriles , Convulsiones Febriles/etiología , Convulsiones Febriles/prevención & control , Convulsiones Febriles/virología , Humanos , Lactante , Preescolar , Hong Kong , Gripe Humana/complicaciones , Temperatura , Contaminación del Aire , Estaciones del Año , Vacunas contra la Influenza/administración & dosificación , Estudios Retrospectivos , Factores de Tiempo
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