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1.
Cell ; 184(18): 4734-4752.e20, 2021 09 02.
Artículo en Inglés | MEDLINE | ID: mdl-34450029

RESUMEN

Immune responses to cancer are highly variable, with mismatch repair-deficient (MMRd) tumors exhibiting more anti-tumor immunity than mismatch repair-proficient (MMRp) tumors. To understand the rules governing these varied responses, we transcriptionally profiled 371,223 cells from colorectal tumors and adjacent normal tissues of 28 MMRp and 34 MMRd individuals. Analysis of 88 cell subsets and their 204 associated gene expression programs revealed extensive transcriptional and spatial remodeling across tumors. To discover hubs of interacting malignant and immune cells, we identified expression programs in different cell types that co-varied across tumors from affected individuals and used spatial profiling to localize coordinated programs. We discovered a myeloid cell-attracting hub at the tumor-luminal interface associated with tissue damage and an MMRd-enriched immune hub within the tumor, with activated T cells together with malignant and myeloid cells expressing T cell-attracting chemokines. By identifying interacting cellular programs, we reveal the logic underlying spatially organized immune-malignant cell networks.


Asunto(s)
Neoplasias Colorrectales/inmunología , Neoplasias Colorrectales/patología , Proteínas Morfogenéticas Óseas/metabolismo , Fibroblastos Asociados al Cáncer/metabolismo , Fibroblastos Asociados al Cáncer/patología , Compartimento Celular , Línea Celular Tumoral , Quimiocinas/metabolismo , Estudios de Cohortes , Neoplasias Colorrectales/genética , Reparación de la Incompatibilidad de ADN/genética , Células Endoteliales/metabolismo , Regulación Neoplásica de la Expresión Génica , Humanos , Inmunidad , Inflamación/patología , Monocitos/patología , Células Mieloides/patología , Neutrófilos/patología , Células del Estroma/metabolismo , Linfocitos T/metabolismo , Transcripción Genética
2.
Cell ; 175(4): 984-997.e24, 2018 11 01.
Artículo en Inglés | MEDLINE | ID: mdl-30388455

RESUMEN

Immune checkpoint inhibitors (ICIs) produce durable responses in some melanoma patients, but many patients derive no clinical benefit, and the molecular underpinnings of such resistance remain elusive. Here, we leveraged single-cell RNA sequencing (scRNA-seq) from 33 melanoma tumors and computational analyses to interrogate malignant cell states that promote immune evasion. We identified a resistance program expressed by malignant cells that is associated with T cell exclusion and immune evasion. The program is expressed prior to immunotherapy, characterizes cold niches in situ, and predicts clinical responses to anti-PD-1 therapy in an independent cohort of 112 melanoma patients. CDK4/6-inhibition represses this program in individual malignant cells, induces senescence, and reduces melanoma tumor outgrowth in mouse models in vivo when given in combination with immunotherapy. Our study provides a high-resolution landscape of ICI-resistant cell states, identifies clinically predictive signatures, and suggests new therapeutic strategies to overcome immunotherapy resistance.


Asunto(s)
Antineoplásicos/uso terapéutico , Quinasa 4 Dependiente de la Ciclina/antagonistas & inhibidores , Quinasa 6 Dependiente de la Ciclina/antagonistas & inhibidores , Melanoma/inmunología , Inhibidores de Proteínas Quinasas/uso terapéutico , Linfocitos T/inmunología , Escape del Tumor , Anciano , Anciano de 80 o más Años , Animales , Antineoplásicos/farmacología , Línea Celular Tumoral , Femenino , Humanos , Inmunoterapia/métodos , Masculino , Melanoma/tratamiento farmacológico , Melanoma/terapia , Ratones , Ratones Endogámicos C57BL , Persona de Mediana Edad , Receptor de Muerte Celular Programada 1/antagonistas & inhibidores , Inhibidores de Proteínas Quinasas/farmacología
3.
Nucleic Acids Res ; 52(10): 5698-5719, 2024 Jun 10.
Artículo en Inglés | MEDLINE | ID: mdl-38587186

RESUMEN

AT-rich interaction domain protein 1A (ARID1A), a SWI/SNF chromatin remodeling complex subunit, is frequently mutated across various cancer entities. Loss of ARID1A leads to DNA repair defects. Here, we show that ARID1A plays epigenetic roles to promote both DNA double-strand breaks (DSBs) repair pathways, non-homologous end-joining (NHEJ) and homologous recombination (HR). ARID1A is accumulated at DSBs after DNA damage and regulates chromatin loops formation by recruiting RAD21 and CTCF to DSBs. Simultaneously, ARID1A facilitates transcription silencing at DSBs in transcriptionally active chromatin by recruiting HDAC1 and RSF1 to control the distribution of activating histone marks, chromatin accessibility, and eviction of RNAPII. ARID1A depletion resulted in enhanced accumulation of micronuclei, activation of cGAS-STING pathway, and an increased expression of immunomodulatory cytokines upon ionizing radiation. Furthermore, low ARID1A expression in cancer patients receiving radiotherapy was associated with higher infiltration of several immune cells. The high mutation rate of ARID1A in various cancer types highlights its clinical relevance as a promising biomarker that correlates with the level of immune regulatory cytokines and estimates the levels of tumor-infiltrating immune cells, which can predict the response to the combination of radio- and immunotherapy.


Asunto(s)
Cromatina , Reparación del ADN , Proteínas de Unión al ADN , Inmunidad , Factores de Transcripción , Humanos , Línea Celular Tumoral , Cromatina/metabolismo , Ensamble y Desensamble de Cromatina/genética , Roturas del ADN de Doble Cadena , Reparación del ADN/genética , Proteínas de Unión al ADN/deficiencia , Proteínas de Unión al ADN/genética , Proteínas de Unión al ADN/metabolismo , Histona Desacetilasa 1/genética , Histona Desacetilasa 1/metabolismo , Recombinación Homóloga/genética , Inmunidad/genética , Neoplasias/diagnóstico , Neoplasias/genética , Neoplasias/inmunología , Proteínas Nucleares/metabolismo , Proteínas Nucleares/genética , Nucleotidiltransferasas/genética , Nucleotidiltransferasas/metabolismo , Transactivadores , Factores de Transcripción/deficiencia , Factores de Transcripción/genética , Factores de Transcripción/metabolismo
4.
Genes Dev ; 31(7): 674-687, 2017 04 01.
Artículo en Inglés | MEDLINE | ID: mdl-28446596

RESUMEN

MicroRNAs (miRNAs) are post-transcriptional regulators of gene expression critical for organismal viability. Changes in miRNA activity are common in cancer, but how these changes relate to subsequent alterations in transcription and the process of tumorigenesis is not well understood. Here, we report a deep transcriptional, oncogenic network regulated by miRNAs. We present analysis of the gene expression and phenotypic changes associated with global miRNA restoration in miRNA-deficient fibroblasts. This analysis uncovers a miRNA-repressed network containing oncofetal genes Imp1, Imp2, and Imp3 (Imp1-3) that is up-regulated primarily transcriptionally >100-fold upon Dicer loss and is resistant to resilencing by complete restoration of miRNA activity. This Dicer-resistant epigenetic switch confers tumorigenicity to these cells. Let-7 targets Imp1-3 are required for this tumorigenicity and feed back to reinforce and sustain expression of the oncogenic network. Together, these Dicer-resistant genes constitute an mRNA expression signature that is present in numerous human cancers and is associated with poor survival.


Asunto(s)
Antígenos de Neoplasias/genética , Transformación Celular Neoplásica/genética , ARN Helicasas DEAD-box/genética , ARN Helicasas DEAD-box/fisiología , MicroARNs/genética , Ribonucleasa III/genética , Ribonucleasa III/fisiología , Animales , Antígenos de Neoplasias/metabolismo , Células Cultivadas , Femenino , Regulación Neoplásica de la Expresión Génica , Humanos , Masculino , Ratones , Ratones Noqueados , Oncogenes , Proteínas de Unión al ARN/genética , Proteínas de Unión al ARN/metabolismo , Activación Transcripcional
5.
Cell Biol Toxicol ; 40(1): 40, 2024 May 27.
Artículo en Inglés | MEDLINE | ID: mdl-38797732

RESUMEN

MYBL1 is a strong transcriptional activator involved in the cell signaling. However, there is no systematic study on the role of MYBL1 in atherosclerosis. The aim of this study is to elucidate the role and mechanism of MYBL1 in atherosclerosis. GSE28829, GSE43292 and GSE41571 were downloaded from NCBI for differentially expressed analysis. The expression levels of MYBL1 in atherosclerotic plaque tissue and normal vessels were detected by qRT-PCR, Western blot and Immunohistochemistry. Transwell and CCK-8 were used to detect the migration and proliferation of HUVECs after silencing MYBL1. RNA-seq, Western blot, qRT-PCR, Luciferase reporter system, Immunofluorescence, Flow cytometry, ChIP and CO-IP were used to study the role and mechanism of MYBL1 in atherosclerosis. The microarray data of GSE28829, GSE43292, and GSE41571 were analyzed and intersected, and then MYBL1 were verified. MYBL1 was down-regulated in atherosclerotic plaque tissue. After silencing of MYBL1, HUVECs were damaged, and their migration and proliferation abilities were weakened. Overexpression of MYBL1 significantly enhanced the migration and proliferation of HUVECs. MYBL1 knockdown induced abnormal autophagy in HUVEC cells, suggesting that MYBL1 was involved in the regulation of HUVECs through autophagy. Mechanistic studies showed that MYBL1 knockdown inhibited autophagosome and lysosomal fusion in HUVECs by inhibiting PLEKHM1, thereby exacerbating atherosclerosis. Furthermore, MYBL1 was found to repress lipid accumulation in HUVECs after oxLDL treatment. MYBL1 knockdown in HUVECs was involved in atherosclerosis by inhibiting PLEKHM1-induced autophagy, which provided a novel target of therapy for atherosclerosis.


Asunto(s)
Aterosclerosis , Autofagia , Movimiento Celular , Proliferación Celular , Regulación hacia Abajo , Células Endoteliales de la Vena Umbilical Humana , Animales , Humanos , Aterosclerosis/metabolismo , Aterosclerosis/genética , Aterosclerosis/patología , Autofagia/genética , Movimiento Celular/genética , Proliferación Celular/genética , Regulación hacia Abajo/genética , Células Endoteliales de la Vena Umbilical Humana/metabolismo , Glicoproteínas de Membrana/metabolismo , Glicoproteínas de Membrana/genética , Placa Aterosclerótica/metabolismo , Placa Aterosclerótica/genética , Placa Aterosclerótica/patología , Transactivadores/metabolismo , Transactivadores/genética
6.
BMC Infect Dis ; 24(1): 840, 2024 Aug 20.
Artículo en Inglés | MEDLINE | ID: mdl-39164630

RESUMEN

BACKGROUND: This cohort study determines the predictors for cause-specific and timing of deaths in patients with COVID-19 in Taiwan. METHODS: Patients with laboratory-confirmed COVID-19 admitted to Taipei City Hospital from January 1 to July 31, 2022, were recruited in this cohort. All patients were followed up until death, discharge from the hospital, or August 31, 2022. Early deaths within the first 2 weeks were recorded, and the cause of death was confirmed by the death certificate database of Taiwan. Predictors of cause-specific and timing of deaths of patients with COVID-19 were determined using multinomial Cox proportional hazards regression analysis. RESULTS: Of the 195 (8.0%) patients who died during hospitalization, 147 (84.0%) had COVID-19-specific deaths. Moreover, 54.9% of the deceased patients had early death. After controlling for other covariates, patients aged ≥ 65 years had a higher risk of COVID-19-specific, non-COVID-19-specific, early, and late deaths [adjusted hazards ratio (AHR): 3.85, 6.45, 3.33, and 6.57; 95% confidence interval (CI): 1.91-7.78, 1.17-35.68, 1.51-7.36, and 2.18-19.76, respectively]. Fully vaccinated patients had a lower risk of COVID-19-specific (AHR: 0.68; 95% CI: 0.47-0.98) and early deaths (AHR: 0.54; 95% CI: 0.35-0.84), whereas comorbid patients with chronic obstructive pulmonary disease had a higher risk of non-COVID-19-specific deaths (AHR: 5.43; 95% CI: 1.73-17.03). CONCLUSIONS: This study suggests that prioritizing COVID-19 vaccination and carefully monitoring comorbid patients during hospitalization can reduce the risk of COVID-19-specific and early deaths and non-COVID-19-specific mortalities, respectively.


Asunto(s)
COVID-19 , Hospitalización , SARS-CoV-2 , Humanos , COVID-19/mortalidad , COVID-19/epidemiología , Taiwán/epidemiología , Masculino , Femenino , Anciano , Persona de Mediana Edad , Estudios de Cohortes , Hospitalización/estadística & datos numéricos , Causas de Muerte , Adulto , Anciano de 80 o más Años , Factores de Riesgo , Modelos de Riesgos Proporcionales
7.
Gerontology ; 70(9): 903-913, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38857585

RESUMEN

INTRODUCTION: Existing evidence evaluating the impact of change in body mass index (BMI) on the risk of all-cause and cardiovascular disease (CVD)-related mortality in older people is limited and inconsistent. This population-based cohort study evaluated the association of changes in BMI over time with all-cause and CVD-related mortality in older adults. METHODS: We recruited 55,351 adults aged over 65 years between 2006 and 2011 from Taipei Elderly Health Examination Program who underwent repeated annual health examinations at 3.2-year intervals and were followed up for mortality over 5.5 years. Cox proportional hazard and Fine-Gray sub-distribution hazard models with death from non-CVD causes as the competing risk were used to determine the impact of changes in BMI status on the risk of all-cause or CVD-related mortality, respectively. RESULTS: Over 227,967 person-years of follow-up, 4,054 participants died, including 940 (23.2%) CVD-related deaths. After adjusting for other covariates, >10% decrease in BMI was significantly associated with a higher risk of all-cause (adjusted hazard ratio [AHR] = 1.93; 95% confidence interval [CI]: 1.74-2.13) and CVD-related mortality (AHR = 1.96; 95% CI: 1.60-2.40), compared with stable BMI. Sensitivity analysis showed that a >10% decrease in BMI was significantly associated with a high risk of all-cause and CVD-related mortality in participants with normal weight, underweight, overweight, or obesity at baseline. CONCLUSION: Older adults with >10% decrease in BMI are at high risk of all-cause and CVD-related mortality. Our findings suggest that older individuals experiencing a substantial reduction in BMI should undergo a thorough evaluation to minimize the risks associated with mortality.


Asunto(s)
Índice de Masa Corporal , Enfermedades Cardiovasculares , Humanos , Anciano , Masculino , Femenino , Enfermedades Cardiovasculares/mortalidad , Taiwán/epidemiología , Estudios de Cohortes , Modelos de Riesgos Proporcionales , Causas de Muerte , Anciano de 80 o más Años , Factores de Riesgo , Obesidad/mortalidad , Obesidad/complicaciones
8.
Clin Exp Nephrol ; 2024 May 25.
Artículo en Inglés | MEDLINE | ID: mdl-38789827

RESUMEN

BACKGROUND: Alcohol consumption is associated with both beneficial and harmful effects, and the role of alcohol consumption in chronic kidney disease (CKD) remains inconclusive. This study aimed to investigate the relationship between alcohol consumption and CKD or estimated glomerular filtration rate (eGFR). METHODS: This study enrolled adults from the second Taiwanese Survey on Prevalences of Hypertension, Hyperglycemia, and Hyperlipidemia, conducted in 2007. Participants were categorized into frequent drinkers, occasional drinkers, and nondrinkers. The amount of alcohol consumption was assessed by standard drinks per week. The primary outcome was the presence of CKD, and the secondary outcome was the eGFR. RESULTS: Among 3967 participants with a mean age of 47.9 years and a CKD prevalence of 11.7%, 13.8% were frequent drinkers, and 23.1% were occasional drinkers. The average amount of alcohol consumed was 3.3 drinks per week. Frequent drinkers (odds ratio [OR] 0.622, 95% confidence interval [CI] 0.443-0.874) and occasional drinkers (OR 0.597 95% CI 0.434-0.821) showed a lower prevalence of CKD than nondrinkers. Consumption of a larger number of standard drinks was associated with a lower prevalence of CKD (OR 0.872, 95% CI 0.781-0.975). Frequent drinkers and those who consumed a larger number of standard drinks per week showed higher eGFRs. CONCLUSION: Within the range of moderate alcohol intake, those who consumed more alcohol had a higher eGFR and reduced prevalence of CKD. The potentially harmful effects of heavy drinking should be taken into consideration, and alcohol intake should be limited to less than light to moderate levels.

9.
BMC Nephrol ; 25(1): 289, 2024 Sep 03.
Artículo en Inglés | MEDLINE | ID: mdl-39227817

RESUMEN

PURPOSE: The purpose of this study was to investigate the correlation between podocyte related biomarker cofilin-1 and renal function, and explore the value of cofilin-1 in predicting the risk of renal adverse prognosis in IgA nephropathy (IgAN). METHODS: Patients with primary IgAN diagnosed by initial renal biopsy performed in our hospital from January 2019 to February 2022 were included. This study was a prospective cohort study. All IgAN patients were detected the expression of cofilin-1 and other related biomarkers (RhoA, NGAL) in urine by enzyme-linked immunosorbent assay (ELISA) and follow-up at least 6 months. We also collected baseline clinicopathologial data of IgAN. The decreased renal function group was defined as baseline eGFR < 60 ml/min/1.73m2. Logistic and Cox regression model were used to analyze the correlation among cofilin-1 and renal prognosis. RESULTS: 133 IgAN patients were included, with a male-to-female ratio of 1.25:1 and an age of 37.67 ± 13.78 years, as well as an average of eGFR was 71.63 (40.42,109.33) ml/min/1.73m2. 56 patients (42.1%) had decreased renal function at baseline, with the average of eGFR was 34.07 (16.72, 49.21) ml/min/1.73 m2. 12 of which developed to renal adverse prognosis. The average of follow-up time was 22.035 ± 8.992 months. The multivariate regression analysis showed that increased urinary cofilin-1 was an independent risk factor associated with baseline renal function decline and renal adverse prognosis in IgAN patients (P < 0.05). ROC curves showed great efficacy of urinary cofilin-1 levels in diagnosing baseline renal function decline and predicting renal adverse prognosis (the area under the ROC curve was 0.708 and 0.803). CONCLUSION: Cofilin-1 as a novel biomarker of podocyte lesion is closely related to renal function decline in IgAN. Cofilin-1 has certain clinical value in predicting the risk of renal adverse prognosis. Podocyte fusion affects the renal prognosis of IgAN.


Asunto(s)
Cofilina 1 , Glomerulonefritis por IGA , Humanos , Glomerulonefritis por IGA/orina , Glomerulonefritis por IGA/patología , Cofilina 1/orina , Masculino , Femenino , Adulto , Pronóstico , Estudios Prospectivos , Tasa de Filtración Glomerular , Persona de Mediana Edad , Biomarcadores/orina
10.
Environ Toxicol ; 39(2): 529-538, 2024 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-37341073

RESUMEN

Ferroptosis is a novel form of programmed cell death triggered by iron-dependent lipid peroxidation and has been associated with various diseases, including cancer. Erastin, an inhibitor of system Xc-, which plays a critical role in regulating ferroptosis, has been identified as an inducer of ferroptosis in cancer cells. In this study, we investigated the impact of butyrate, a short-chain fatty acid produced by gut microbiota, on erastin-induced ferroptosis in lung cancer cells. Our results demonstrated that butyrate significantly enhanced erastin-induced ferroptosis in lung cancer cells, as evidenced by increased lipid peroxidation and reduced expression of glutathione peroxidase 4 (GPX4). Mechanistically, we found that butyrate modulated the pathway involving activating transcription factor 3 (ATF3) and solute carrier family 7 member 11 (SLC7A11), leading to enhanced erastin-induced ferroptosis. Furthermore, partial reversal of the effect of butyrate on ferroptosis was observed upon knockdown of ATF3 or SLC7A11. Collectively, our findings indicate that butyrate enhances erastin-induced ferroptosis in lung cancer cells by modulating the ATF3/SLC7A11 pathway, suggesting its potential as a therapeutic agent for cancer treatment.


Asunto(s)
Ferroptosis , Neoplasias Pulmonares , Humanos , Factor de Transcripción Activador 3/metabolismo , Butiratos/farmacología , Sistema de Transporte de Aminoácidos y+/genética , Sistema de Transporte de Aminoácidos y+/metabolismo
11.
Geriatr Nurs ; 58: 438-445, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38908039

RESUMEN

The study aimed to translate the Geriatric Anxiety Inventory into traditional Chinese (GAI-TC), examine its psychometric properties, and identify the optimal cutoff point. This research recruited 337 older adults from two community activity centers. Structured questionnaires were used, including demographic information and characteristics, the GAI-TC, and the State-Trait Anxiety Inventory (STAI). Cronbach's α of the GAI-TC was 0.93. The intraclass correlation coefficient was 0.90. The content validity index was 1.0. An exploratory factor analysis revealed that three factors in the GAI-TC, including cognition anxiety, impact of anxiety, and somatic anxiety, explained 59.46 % of the variance. The criterion-related validity showed a significant positive correlation between the GAI-TC and STAI, with an optimal cutoff of 9/10 for detecting anxiety in older persons living in the community. The GAI-TC had good reliability and validity and can provide professionals with a tool for the early identification of anxiety among older adults.


Asunto(s)
Ansiedad , Psicometría , Humanos , Masculino , Femenino , Anciano , Ansiedad/diagnóstico , Ansiedad/psicología , Encuestas y Cuestionarios/normas , Reproducibilidad de los Resultados , China , Evaluación Geriátrica/métodos , Anciano de 80 o más Años
12.
Angew Chem Int Ed Engl ; 63(32): e202407385, 2024 Aug 05.
Artículo en Inglés | MEDLINE | ID: mdl-38736176

RESUMEN

Circularly polarized luminescence (CPL) is promising for applications in many fields. However, most systems involving CPL are within the visible range; near-infrared (NIR) CPL-active materials, especially those that exhibit high glum values and can be controlled spatially and temporally, are rare. Herein, dynamic NIR-CPL with a glum value of 2.5×10-2 was achieved through supramolecular coassembly and energy-transfer strategies. The chiral assemblies formed by the coassembly between adenosine triphosphate (ATP) and a pyrene derivative exhibited a red CPL signal (glum of 10-3). The further introduction of sulfo-cyanine5 resulted in a energy-transfer process, which not only led to the NIR CPL but also increased the glum value to 10-2. Temporal control of these chiral assemblies was realized by introducing alkaline phosphatase to fabricate a biomimetic enzyme-catalyzed network, allowing the dynamic NIR CPL signal to be turned on. Based on these enzyme-regulated temporally controllable dynamic CPL-active chiral assemblies, a multilevel information encryption system was further developed. This study provides a pioneering example for the construction of dynamic NIR CPL materials with the ability to perform temporal control via the supramolecular assembly strategy, which is expected to aid in the design of supramolecular complex systems that more closely resemble natural biological systems.

13.
Rev Cardiovasc Med ; 24(5): 129, 2023 May.
Artículo en Inglés | MEDLINE | ID: mdl-39076756

RESUMEN

Tricuspid regurgitation (TR) may occur late after left-sided valve surgery (LSVS). Isolated tricuspid regurgitation after left-sided valve surgery (iTR-LSVS) refers to isolated TR without significant lesions in the mitral and/or aortic position late after mitral and/or aortic replacement or repair. Severe TR has a negative impact on long-term prognosis and requires surgical or transcatheter treatment. However, there is no clear recommendation on when and how intervention should be performed for patients with iTR-LSVS in the current guidelines for the management of valvular heart disease. The historically high operative mortality may be reduced by current minimally invasive techniques and transcatheter therapy. To further understand iTR-LSVS, standardize the treatment, improve the prognosis, and promote the collaboration, the Chinese Minimally Invasive Cardiovascular Surgery Committee (CMICS) wrote this expert consensus on the management of iTR-LSVS from the aspects of etiology, preoperative evaluation, indications for intervention, surgical treatment, transcatheter therapy, and postoperative management.

14.
J Am Acad Dermatol ; 89(3): 496-503, 2023 09.
Artículo en Inglés | MEDLINE | ID: mdl-37236426

RESUMEN

BACKGROUND: UV-B phototherapy is a common treatment modality for patients with atopic dermatitis (AD), but its long-term safety in terms of cutaneous carcinogenic risk has not been studied. OBJECTIVE: To investigate the risk of skin cancer among patients with AD receiving UV-B phototherapy. METHODS: We conducted a nationwide population-based cohort study from 2001 to 2018 to estimate the risk of UV-B phototherapy for skin cancer, nonmelanoma skin cancer, and cutaneous melanoma in patients with AD. RESULTS: Among 6205 patients with AD, the risks of skin cancer (adjusted hazard ratio [HR], 0.91; 95% CI, 0.35-2.35), nonmelanoma skin cancer (adjusted HR, 0.80; 95% CI, 0.29-2.26), and cutaneous melanoma (adjusted HR, 0.80; 95% CI, 0.08-7.64) did not increase among patients with AD treated with UV-B phototherapy, compared with those who did not receive UV-B phototherapy. Additionally, the number of UV-B phototherapy sessions was not associated with an increased risk of skin cancer (adjusted HR, 0.99; 95% CI, 0.96-1.02), nonmelanoma skin cancer (adjusted HR, 0.99; 95% CI, 0.96-1.03), or cutaneous melanoma (adjusted HR, 0.94; 95% CI, 0.77-1.15). LIMITATIONS: Retrospective study. CONCLUSION: Neither UV-B phototherapy nor the number of UV-B phototherapy sessions was associated with an increased risk of skin cancers among patients with AD.


Asunto(s)
Dermatitis Atópica , Terapia Ultravioleta , Humanos , Dermatitis Atópica/epidemiología , Dermatitis Atópica/radioterapia , Rayos Ultravioleta , Estudios Retrospectivos , Melanoma/epidemiología , Melanoma/etiología , Neoplasias Cutáneas/epidemiología , Neoplasias Cutáneas/etiología , Factores de Riesgo , Masculino , Femenino , Adulto , Persona de Mediana Edad , Anciano , Taiwán/epidemiología
15.
J Urban Health ; 100(2): 341-354, 2023 04.
Artículo en Inglés | MEDLINE | ID: mdl-36781812

RESUMEN

Breast cancer is the most commonly diagnosed cancer among women worldwide. Studies have reported minimal birth cohort effects on the incidence rates of breast cancer in Western countries but have reported notable birth cohort effects in some Asian countries. The risks of breast cancer may also vary within a country. In the present study, we abstracted female invasive breast cancer data from the Taiwan Cancer Registry for the period 1997-2016. We used the age-period-cohort model to compare birth cohort effects on breast cancer incidence rates between urban and rural regions in Taiwan. We identified a notable urban-rural disparity in birth cohort effects on breast cancer incidence rates in women in Taiwan. The incidence rates in the urban regions were higher than those in the rural regions across all cohorts. However, the incidence rates rose faster in the rural regions than in the urban regions across the cohorts. The risks of breast cancer observed for women born in 1992 were approximately 22 and 11 times than those observed for women born in 1917 in rural and urban regions, respectively. The observed gap in breast cancer incidence rates between the urban and rural regions gradually disappeared across the cohorts. Accordingly, we speculate that urbanization and westernization in Taiwan may be the drivers of female breast cancer incidence rates across birth cohorts.


Asunto(s)
Neoplasias de la Mama , Humanos , Femenino , Adulto , Neoplasias de la Mama/epidemiología , Incidencia , Población Urbana , Cohorte de Nacimiento , Efecto de Cohortes , Población Rural
16.
Int J Nurs Pract ; 29(5): e13169, 2023 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-37272213

RESUMEN

AIM: Repeated occupational exposure and increased stress and fatigue levels contribute to a high risk of coronavirus disease 2019 (COVID-19) infection among frontline nurses. This study aimed to explore the relationships among teamwork, work environment and resources, work-life balance, stress perception and burnout among nurses working at a dedicated infectious disease control hospital. METHODS: The participants were 389 nurses at a dedicated infectious disease control hospital in Taipei City, Taiwan. This study adopted survey design with a questionnaire using the Safety Attitude Questionnaire. RESULTS: The work-life balance among nurses at the dedicated hospital significantly mediated the effects of teamwork and work environment and resources on burnout. In addition, stress perception had interaction effects on work-life balance and burnout. CONCLUSION: This study's results provide important recommendations for managing teamwork, work environment and resources, work-life balance, stress perception and burnout prevention in nurses to help them better prepare and cope with emergencies. Findings can serve as a reference for developing relevant hospital management policies.


Asunto(s)
Agotamiento Profesional , COVID-19 , Enfermedades Transmisibles , Enfermeras y Enfermeros , Humanos , COVID-19/epidemiología , Pandemias , Agotamiento Profesional/epidemiología , Hospitales , Encuestas y Cuestionarios
17.
Molecules ; 28(17)2023 Sep 01.
Artículo en Inglés | MEDLINE | ID: mdl-37687220

RESUMEN

Herein, pyridinium and 4-vinylpyridinium groups are introduced into the VIE-active N,N'-disubstituted-dihydrodibenzo[a,c]phenazines (DPAC) framework to afford a series of D-π-A-structured dihydrodibenzo[a,c]phenazines in consideration of the aggregation-benefited performance of the DPAC module and the potential mitochondria-targeting capability of the resultant pyridinium-decorated DPACs (DPAC-PyPF6 and DPAC-D-PyPF6). To modulate the properties and elucidate the structure-property relationship, the corresponding pyridinyl/4-vinylpyridinyl-substituted DPACs, i.e., DPAC-Py and DPAC-D-Py, are designed and studied as controls. It is found that the strong intramolecular charge transfer (ICT) effect enables the effective separation of the highest occupied molecular orbital (HOMO) and the lowest unoccupied molecular orbital (LUMO) of DPAC-PyPF6 and DPAC-D-PyPF6, which is conducive to the generation of ROS. By adjusting the electron-accepting group and the π-bridge, the excitation, absorption, luminescence, photosensitizing properties as well as the mitochondria-targeting ability can be finely tuned. Both DPAC-PyPF6 and DPAC-D-PyPF6 display large Stokes shifts (70-222 nm), solvent-dependent absorptions and emissions, aggregation-induced emission (AIE), red fluorescence in the aggregated state (λem = 600-650 nm), aggregation-promoted photosensitizing ability with the relative singlet-oxygen quantum yields higher than 1.10, and a mitochondria-targeting ability with the Pearson coefficients larger than 0.85. DPAC-D-PyPF6 shows absorption maximum at a longer wavelength, slightly redder fluorescence and better photosensitivity as compared to DPAC-PyPF6, which consequently leads to the higher photocytotoxicity under the irradiation of white light as a result of the larger π-conjugation.

18.
BMC Nurs ; 22(1): 129, 2023 Apr 18.
Artículo en Inglés | MEDLINE | ID: mdl-37072840

RESUMEN

BACKGROUND: Increasing patient awareness of post-discharge care resources is an effective strategy to reduce rehospitalization rates and medical costs. Therefore, the purpose of this study was to explore hospitalized older adult patients' awareness of and subjective demands for post-discharge healthcare services. METHODS: A cross-sectional study design was conducted from November 2018 to May 2020. STROBE statement was completed. Participants were inpatients over 65 years of age in the general ward of a medical center in northern Taiwan. A questionnaire was used to collect data by face-to-face interviews. Two hundred and twelve participants were recruited. Home nursing care, home rehabilitation, home respiratory therapy, home services, assistive devices rental, and transportation were the main post-discharge healthcare services in this study. RESULTS: Overall, 83.5% of older adult patients were aware of and 55.7% of the older adult patients demanded at least one post-discharge healthcare services. Logistic regression results found that, patients experiencing moderate to severe disability and cognitive impairment, and those hospitalized in the past year had significantly higher demands for services. CONCLUSIONS: Developing post-discharge healthcare services for older adult patients provides continuous patient-centered services for assisting patients and their families in adapting to the transition period of the post-acute stage. Satisfying these demands is beneficial for older adult patients and their families, as well as for reducing readmissions and medical costs.

19.
J Dtsch Dermatol Ges ; 21(6): 587-597, 2023 06.
Artículo en Inglés | MEDLINE | ID: mdl-37199262

RESUMEN

BACKGROUND AND OBJECTIVES: Various interventions have been applied to treat molluscum contagiosum, but benefits and efficacy remain unclear. To assess the comparative efficacy and safety of interventions for molluscum contagiosum, a network meta-analysis was performed. PATIENTS AND METHODS: Embase, PubMed, and the Cochrane Library were searched for articles published between January 1, 1990, and November 31, 2020. Eligible studies were randomized clinical trials (RCTs) of interventions in immunocompetent children and adults with genital/non-genital molluscum contagiosum lesions. RESULTS: Twelve interventions from 25 RCTs including 2,123 participants were assessed. Compared with the placebo, ingenol mebutate had the most significant effect on complete clearance (odds ratio [OR] 117.42, 95% confidence interval [CI] 6.37-2164.88), followed by cryotherapy (OR 16.81, 95% CI 4.13-68.54), podophyllotoxin (OR 10.24, 95% CI 3.36-31.21), and potassium hydroxide (KOH) (OR 10.02, 95% CI 4.64-21.64). Data on adverse effects were too scarce for quantitative synthesis. CONCLUSIONS: Ingenol mebutate, cryotherapy, podophyllotoxin, and KOH were more effective than the other interventions in achieving complete clearance, but safety concerns regarding ingenol mebutate have recently been reported. Due to the possibility of spontaneous resolution, observation is also justified for asymptomatic infection. Factors including adverse effects, cost, patient preference, and medical accessibility should be considered.


Asunto(s)
Molusco Contagioso , Niño , Adulto , Humanos , Molusco Contagioso/tratamiento farmacológico , Podofilotoxina/uso terapéutico , Metaanálisis en Red , Crioterapia , Ensayos Clínicos Controlados Aleatorios como Asunto
20.
J Nurs Scholarsh ; 54(1): 7-14, 2022 01.
Artículo en Inglés | MEDLINE | ID: mdl-34841651

RESUMEN

OBJECTIVES: Discharge planning is an effective strategy to prevent adverse health events and reduce medical expenditures. The high-risk target populations of discharged elderly patients and important predictors for the occurrence of adverse events are still not clear. Therefore, the purposes of this study were to examine the validity of discharge planning screening tools in sufficiently identifying high-risk adverse events to health after discharge and to compare two screening tools with our study model. DESIGN: We conducted a prospective study and recruited elderly patients who had had no hospitalization within 3 months before admission to 13 general wards of a medical center in northern Taiwan from November 2018 to May 2020. METHODS: Elderly patients were randomly selected during the study period. Within 24 h of admission, patients were asked to consent to join this study. After the patient was discharged, the patient's health and hospitalization for the next year were tracked by telephone interviews. RESULTS: In total, 300 participants were recruited for this study. Incidences of high-risk adverse events within 30 days, 60 days, and 12 months after discharge were 20.3%, 25.7%, and 48.7% respectively. A logistic regression showed that an increased age, physical or mental disabilities or a major illness, a low body-mass index, and having been hospitalized in the past year were significantly related to the occurrence of high-risk events among elderly discharge patients. The pooled sensitivity of the Pra was 52% and the specificity was 72%; the pooled sensitivity of the LACE index was 67% and the specificity was 36%. The predictive model of this study had a higher discriminatory power than the Pra and LACE index for high-risk events after discharge. CONCLUSIONS: Elderly patients are more vulnerable to high-risk adverse events after discharge. Both the LACE index and Pra are useful discharge planning screening tools to screen for high-risk adverse events after discharge. Elderly patients need more-active and complete continuity of care plans and discharge planning services to ensure that the overall quality of patient care can be improved and readmissions and mortality reduced. CLINICAL RELEVANCE: The findings of this study can provide information for discharge planning managers to identify high-risk elderly patients during hospitalization and promptly offer care education or resources to improve care management.


Asunto(s)
Hospitalización , Alta del Paciente , Anciano , Hospitales , Humanos , Estudios Prospectivos , Factores de Riesgo
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