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1.
Microbiol Spectr ; : e0053724, 2024 Jul 25.
Artículo en Inglés | MEDLINE | ID: mdl-39052441

RESUMEN

The tkt (transketolase) gene is one of the seven gene fragments used in the multilocus sequence typing (MLST) system for Streptococcus agalactiae. We discovered that the tkt_134 allele is derived from a homologous gene (which we designate tktX) that is not present in all S. agalactiae; all known strains that contain a match to the tkt_134 allele also contain a gene sequence that is much closer in sequence identity to the other non-tkt_134 alleles (i.e., the canonical tkt gene) in the database. Based on these data, the tkt_134 allele has been removed from the MLST database as of September 2021, and all sequence types containing tkt_134 have also been removed.IMPORTANCEMultilocus sequence typing (MLST) databases are a common good and remain important for research, medical, and epidemiological purposes. This remains true even in the context of widespread whole-genome sequencing. We discovered a contaminating allele of the tkt gene in the S. agalactiae MLST database that led to unstable, ambiguous, or erroneous MLST assignment. The allele has since been removed from the public database based on the results presented in this manuscript.

2.
Acta Pharmacol Sin ; 2024 Jul 11.
Artículo en Inglés | MEDLINE | ID: mdl-38992119

RESUMEN

The escalating obesity epidemic and aging population have propelled metabolic dysfunction-associated steatohepatitis (MASH) to the forefront of public health concerns. The activation of FXR shows promise to combat MASH and its detrimental consequences. However, the specific alterations within the MASH-related transcriptional network remain elusive, hindering the development of more precise and effective therapeutic strategies. Through a comprehensive analysis of liver RNA-seq data from human and mouse MASH samples, we identified central perturbations within the MASH-associated transcriptional network, including disrupted cellular metabolism and mitochondrial function, decreased tissue repair capability, and increased inflammation and fibrosis. By employing integrated transcriptome profiling of diverse FXR agonists-treated mice, FXR liver-specific knockout mice, and open-source human datasets, we determined that hepatic FXR activation effectively ameliorated MASH by reversing the dysregulated metabolic and inflammatory networks implicated in MASH pathogenesis. This mitigation encompassed resolving fibrosis and reducing immune infiltration. By understanding the core regulatory network of FXR, which is directly correlated with disease severity and treatment response, we identified approximately one-third of the patients who could potentially benefit from FXR agonist therapy. A similar analysis involving intestinal RNA-seq data from FXR agonists-treated mice and FXR intestine-specific knockout mice revealed that intestinal FXR activation attenuates intestinal inflammation, and has promise in attenuating hepatic inflammation and fibrosis. Collectively, our study uncovers the intricate pathophysiological features of MASH at a transcriptional level and highlights the complex interplay between FXR activation and both MASH progression and regression. These findings contribute to precise drug development, utilization, and efficacy evaluation, ultimately aiming to improve patient outcomes.

3.
Heliyon ; 10(12): e32595, 2024 Jun 30.
Artículo en Inglés | MEDLINE | ID: mdl-38988518

RESUMEN

Objective: To investigate the prevalence of subthreshold depression among Chinese college students and to explore the related factors. Methods: The research subjects were Chinese college students participating in the "2022 Psychology and Behavior Investigation of Chinese Residents (PBICR-2022)". Data on respondents' general characteristics, quality of life, perceived pressure, family communication, perceived social support, self-efficacy, and depression status were gathered. To investigate the association between each variable and the risk of subthreshold depression, statistical analyses, including chi-square tests and rank sum tests were conducted. Furthermore, a binary stepwise logistic regression was employed to establish the regression model of the factors related to subthreshold depression among Chinese college students. Results: A prevalence of subthreshold depression of about 39.7 % was found among the 8934 respondents. Logistic regression analysis revealed that respondents who are female, have chronic diseases, are in debt, experience significant impacts from epidemic control policies, have lower self-assessed quality of life, experience challenges in family communication, perceive lower social support, have lower self-efficacy, and feel higher perceived pressure are more likely to develop subthreshold depression compared to the control group. (P < 0.05). Conclusion: The prevalence rate of subthreshold depression among Chinese college students was found to be approximately 40 %. Female college students suffering from chronic diseases, with households in debt, greatly impacted by epidemic control policies, and experiencing high perceived stress, may be at risk for subthreshold depression among Chinese college students. On the other hand, strong family communication, perceived social support, and self-efficacy were identified as potential protective factors. In order to facilitate timely screening, diagnosis, and treatment of subthreshold depression in Chinese college students, it is crucial for the government, local communities, colleges, and families to prioritize the mental health of college students and implement targeted measures accordingly.

4.
Int J Dev Disabil ; 70(4): 711-718, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38983501

RESUMEN

The purpose of this study was to develop two pictorial tools for assessing the attitudes of Taiwanese male senior high school students with intellectual disabilities toward sexually offensive behavior, focusing on cognitive distortion and victim empathy. A total of 181 male high school students at special education schools participated in this study. The validity and reliability were examined using exploratory factor analysis and Cronbach's alpha coefficient. For the cognitive distortion scale, 18 items grouped into three factors, rationalization, denial, and victim blaming, and explained 69.72% of the variance; for the victim empathy scale, 12 items grouped into two factors, the victim's feelings when the offensive behavior is perpetrated by another, and the victim's feelings when the offensive behavior is perpetrated by oneself, and explained 68.00% of the variance. The reliability was .96 for the cognitive distortion scale and .93 for the victim empathy scale. In conclusion, the two scales developed in this research were found to be reliable and valid tools for evaluating male students' attitudes toward sexually offensive behavior, and can also be used as reference material for courses in sex education.

5.
Artículo en Inglés | MEDLINE | ID: mdl-39027976

RESUMEN

Quercetin is kown for its antihypertensive effects. However, its role on hypertensive renal injury has not been fully eucidated. In this study, hematoxylin and eosin staining, terminal deoxynucleotidyl transferase (TdT) dUTP nick-end labeling (TUNEL) staining, and Annexin V staining were used to assess the pathological changes and cells apoptosis in the renal tissues of Ang II-infused mice and Ang II- stimulated renal tubular epithelial cell line (NRK-52E). A variety of technologies, including network pharmacology, RNA-sequencing, immunohistochemistry, and Western blotting were performed to investigate its underlying mechanisms. Network pharmacology analysis identified multiple potential candidate targets (including TP53, Bcl-2 and Bax) and enriched signaling pathways (including apoptosis and p53 signaling pathway). Quercetin treatment significantly alleviated the pathological changes in renal tissues of Ang II-infused mice and reversed 464 differentially expressed transcripts (DETs), as well as enriched several signaling pathways, including those related apoptosis and p53 pathway. Furthermore, quercetin treatment significantly inhibited the cell apoptosis in renal tissues of Ang II-infused mice and Ang II-stimulated NRK-52E cells. Additionally, quercetin treatment inhibited the upregulation of p53, Bax, cleaved-caspase-9, and cleaved-caspase-3 protein expression and the downregulation of Bcl-2 protein expression in both renal tissue of Ang II-infused mice and Ang II-stimulated NRK-52E cells. Moreover, the molecular docking results indicated a potential binding interaction between quercetin and TP53. Quercetin treatment significantly attenuated hypertensive renal injury and cell apoptosis in renal tissues of Ang II-infused mice and Ang II-stimulated NRK-52E cells, and by targeting p53 may be one of the potential underlying mechanisms.

6.
Medicine (Baltimore) ; 103(30): e38980, 2024 Jul 26.
Artículo en Inglés | MEDLINE | ID: mdl-39058856

RESUMEN

Liver cancer with portal vein tumor thrombus (PVTT) is a frequent finding and is related to poor prognosis. Surgical resection provides a more promising prognosis in selected patients. The purpose of this study was to explore the application of 3D (3-dimensional) visualization and image fusion technology in liver cancer with PVTT surgery. 12 patients were treated with surgery between March 2019 and August 2022. The preoperative standard liver volume (SLV), estimated future liver remnant (FLR), FLR/SLV, 3D visualization models, PVTT classification, operation programs, surgical results, and prognosis were collected and analyzed. Twelve patients who had complete data of 3D visualization and underwent hemihepatectomy combined with portal vein tumor thrombectomy. The operation plan was formulated by 3D visualization and was highly consistent with the actual surgery. The SLV was 1208.33 ±â€…63.22 mL, FLR was 734.00 mL and FLR/SLV was 61.62 ±â€…19.38%. The accuracy of classification of PVTT by 3D visualization was 100%, Cheng type Ⅱa (4 cases), Ⅱb (2 cases), Ⅲa (4 cases), and Ⅲb (2 cases). The 3D visualization model was a perfect fusion with the intraoperative live scene and precise guidance for hepatectomy. No patient was suffering from postoperative liver failure and without procedure­associated death. 6 patients died of tumor recurrence, and 2 patients died of other reasons. The 12-month cumulative survival rate was 25.9%. 3D visualization and image fusion technology could be used for precise assessment of FLR, classification of PVTT, surgery navigation, and which was helpful in improving the safety of hepatectomy.


Asunto(s)
Hepatectomía , Imagenología Tridimensional , Neoplasias Hepáticas , Vena Porta , Trombectomía , Humanos , Vena Porta/cirugía , Vena Porta/patología , Vena Porta/diagnóstico por imagen , Neoplasias Hepáticas/cirugía , Neoplasias Hepáticas/diagnóstico por imagen , Neoplasias Hepáticas/patología , Neoplasias Hepáticas/mortalidad , Masculino , Femenino , Persona de Mediana Edad , Imagenología Tridimensional/métodos , Hepatectomía/métodos , Trombectomía/métodos , Anciano , Adulto , Trombosis de la Vena/diagnóstico por imagen , Trombosis de la Vena/cirugía , Trombosis de la Vena/etiología , Pronóstico , Tomografía Computarizada por Rayos X/métodos
7.
J Transl Med ; 22(1): 685, 2024 Jul 26.
Artículo en Inglés | MEDLINE | ID: mdl-39061077

RESUMEN

BACKGROUND: Endometriosis is one of the most common gynaecological diseases, yet it lacks efficient biomarkers for early detection and unravels disease mechanisms. Proteomic profiling has revealed diverse patterns of protein changes in various clinical samples. Integrating and systematically analysing proteomics data can facilitate the development of biomarkers, expediting diagnosis and providing insights for potential clinical and therapeutic applications. Hence, this systematic review and meta-analysis aimed to explore potential non-invasive diagnostic biomarkers in various biological samples and therapeutic targets for endometriosis. METHODS: Online databases, including Scopus, PubMed, Web of Science, MEDLINE, Embase via Ovid, and Google Scholar, were searched using MeSH terms. Two independent authors screened the articles, extracted the data, and assessed the methodological quality of the included studies. GO and KEGG analyses were performed to identify the pathways that were significantly enriched. Protein­protein interaction and hub gene selection analyses were also conducted to identify biomarker networks for endometriosis. RESULTS: Twenty-six observational studies with a total of 2,486 participants were included. A total of 644 differentially expressed proteins (180 upregulated and 464 downregulated) were identified from 9 studies. Proteins in peripheral blood exhibited a sensitivity and specificity of 38-100% and 59-99%, respectively, for detecting endometriosis, while proteins in urine had a sensitivity of 58-91% and specificity of 76-93%. Alpha-1-antitrypsin, albumin, and vitamin D binding proteins were significantly DEPs in both serum and urine. Complement C3 is commonly expressed in serum, menstrual blood, and cervical mucus. Additionally, S100-A8 is commonly expressed in both menstrual blood and cervical mucus. Haptoglobin is commonly detected in both serum and plasma, whereas cathepsin G is found in urine, serum, and plasma. GO and KEGG enrichment analyses revealed that proteoglycans in cancer pathways, which regulate cell-to-cell interactions, modulate the extracellular matrix, and promote the proliferation and invasion of endometrial cells, are commonly enriched in serum and urine. CONCLUSION: This comprehensive study revealed potential proteomes that were significantly differentially expressed in women with endometriosis utilizing various non-invasive clinical samples. Exploring common differentially expressed proteins in various biological samples provides insights into the diagnosis and pathophysiology of endometriosis, as well as potential clinical and therapeutic applications.


Asunto(s)
Biomarcadores , Endometriosis , Proteómica , Femenino , Humanos , Biomarcadores/metabolismo , Biomarcadores/sangre , Biomarcadores/orina , Endometriosis/diagnóstico , Endometriosis/sangre , Endometriosis/metabolismo , Endometriosis/orina , Mapas de Interacción de Proteínas , Proteómica/métodos
8.
Sci Rep ; 14(1): 17597, 2024 Jul 30.
Artículo en Inglés | MEDLINE | ID: mdl-39079973

RESUMEN

The farnesoid X receptor (FXR) is a crucial therapeutic target for treating non-alcoholic steatohepatitis (NASH). Although obeticholic acid (OCA) as a FXR agonist presents good efficacy, the safety data such as severe pruritus should be carefully considered. To discover new medications, we screen and choose the optimal compounds from ZINC15 database that may agonistically interact with FXR. We utilized the DS19 software to assist us in conducting the computer-aided structure based virtual screening to discover potential FXR agonists. After LibDock scores were determined by screening, their absorption, distribution, metabolism, excretion and toxicity predictions were examined. To determine the binding affinity between the chosen drugs and FXR, molecule docking was utilized. Molecular dynamics simulation was utilized to evaluate the stabilization of the ligand-FXR complex in its native environment. Higher binding affinity and stability with FXR were observed for ZINC000013374322 and ZINC000006036327, as two novel natural compounds, with lower rodent carcinogenicity, Ames mutagenicity, no hepatotoxicity and non-inhibitors of CYP2D6. They could stably exist in the environment, possess favorable potential energy and exert pharmacological effects at lower doses. Furthermore, ZINC000006036327 had lower skin irritancy and sensitization potential compared to OCA, also suggest the possibility of improved skin itching occurrence. ZINC000013374322 and ZINC000006036327 were found to be the best leading compounds to be FXR agonists. They are chosen as safe candidates for FXR target medicine, which play comparable pharmacological effects at lower doses.


Asunto(s)
Simulación del Acoplamiento Molecular , Simulación de Dinámica Molecular , Receptores Citoplasmáticos y Nucleares , Receptores Citoplasmáticos y Nucleares/agonistas , Receptores Citoplasmáticos y Nucleares/metabolismo , Humanos , Ácido Quenodesoxicólico/análogos & derivados , Ácido Quenodesoxicólico/farmacología , Ácido Quenodesoxicólico/química , Ligandos , Enfermedad del Hígado Graso no Alcohólico/tratamiento farmacológico , Enfermedad del Hígado Graso no Alcohólico/metabolismo , Unión Proteica , Animales
9.
J Transl Med ; 22(1): 710, 2024 Jul 30.
Artículo en Inglés | MEDLINE | ID: mdl-39080755

RESUMEN

BACKGROUND: Myopia is one of the most common eye diseases in children and adolescents worldwide, and scleral remodeling plays a role in myopia progression. However, the identity of the initiating factors and signaling pathways that induce myopia-associated scleral remodeling is still unclear. This study aimed to identify biomarkers of scleral remodeling to elucidate the pathogenesis of myopia. METHODS: The gene expression omnibus (GEO) and comparative toxicogenomics database (CTD) mining were used to identify the miRNA-mRNA regulatory network related to scleral remodeling in myopia. Real-time quantitative PCR (RT-qPCR), Western blot, immunofluorescence, H&E staining, Masson staining, and flow cytometry were used to detect the changes in the FOXO signaling pathway, fibrosis, apoptosis, cell cycle, and other related factors in scleral remodeling. RESULTS: miR-15b-5p/miR-379-3p can regulate the FOXO signaling pathway. Confirmatory studies confirmed that the axial length of the eye was significantly increased, the scleral thickness was thinner, the levels of miR-15b-5p, miR-379-3p, PTEN, p-PTEN, FOXO3a, cyclin-dependent kinase (CDK) inhibitor 1B (CDKN1B) were increased, and the levels of IGF1R were decreased in Len-induced myopia (LIM) group. CDK2, cyclin D1 (CCND1), and cell cycle block assessed by flow cytometry indicated G1/S cell cycle arrest in myopic sclera. The increase in BAX level and the decrease in BCL-2 level indicated enhanced apoptosis of the myopic sclera. In addition, we found that the levels of transforming growth factor-ß1 (TGF-ß1), collagen type 1 (COL-1), and α-smooth muscle actin (α-SMA) were decreased, suggesting scleral remodeling occurred in myopia. CONCLUSIONS: miR-15b-5p/miR-379-3p can regulate the scleral cell cycle and apoptosis through the IGF1R/PTEN/FOXO signaling pathway, thereby promoting scleral remodeling in myopia progression.


Asunto(s)
Apoptosis , Ciclo Celular , Factores de Transcripción Forkhead , MicroARNs , Miopía , Esclerótica , Transducción de Señal , Animales , Apoptosis/genética , Secuencia de Bases , Ciclo Celular/genética , Modelos Animales de Enfermedad , Factores de Transcripción Forkhead/metabolismo , Factores de Transcripción Forkhead/genética , MicroARNs/genética , MicroARNs/metabolismo , Miopía/genética , Miopía/patología , Miopía/metabolismo , Esclerótica/patología , Esclerótica/metabolismo
10.
BMC Palliat Care ; 23(1): 139, 2024 Jun 05.
Artículo en Inglés | MEDLINE | ID: mdl-38840188

RESUMEN

BACKGROUND: This study investigates the mediating effect of meaning in life between death anxiety and attitude toward palliative care among nursing students. METHODS: We enrolled 363 undergraduate nursing students using a convenience sampling method as the respondents and conducted a survey using general information about nursing students, the Chinese version of the FATCOD-B Scale, the Chinese version of the Death Anxiety Scale, and the Chinese version of the Meaning in Life Questionnaire. The SPSS25.0 statistical software was used to analyze the mediating effect. RESULTS: The mean total attitude score toward palliative care was (104.72 ± 10.62). Death anxiety had a significant negative predictive effect on the attitude toward palliative care (ß = -0.520, P < 0.01). When the mediating variable of the presence of meaning in life was included, the negative predictive effect of death anxiety on attitude toward palliative care remained significant (ß = -0.379, P = 0.036); the mediating effect (-0.141) accounted for 27.12% of the total impact (-0.520). CONCLUSIONS: The presence of meaning in life mediates the relationship between death anxiety and attitude toward palliative care. This implies that nursing educators, through their role in educating nursing students about the meaning of life, can significantly influence the development of a positive attitude toward palliative care.


Asunto(s)
Ansiedad , Actitud Frente a la Muerte , Cuidados Paliativos , Estudiantes de Enfermería , Humanos , Estudiantes de Enfermería/psicología , Estudiantes de Enfermería/estadística & datos numéricos , Femenino , Masculino , Cuidados Paliativos/métodos , Cuidados Paliativos/psicología , Ansiedad/psicología , Encuestas y Cuestionarios , Adulto Joven , Adulto , Actitud del Personal de Salud , Bachillerato en Enfermería/métodos , Psicometría/instrumentación , Psicometría/métodos
11.
Bioorg Chem ; 150: 107579, 2024 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-38908128

RESUMEN

LD4, a novel porphyrin derivative, has attracted much attention for its excellent anti-inflammatory properties. It can promote the healing of colonic mucosa, reduce inflammatory response, regulate oxidative stress, and thus improve ulcerative colitis (UC) symptoms. However, the specific signaling pathways of LD4-PDT involved in UC have not been explored. The present study aimed to elucidate the effects of LD4 on UC and to investigate the underlying mechanisms both in vivo and in vitro. We classified and screened the LD4-PDT proteomic data to obtain key targets. Proteomic data revealed that EPHX2 and STAT3 are key targets of LD4-PDT for UC. Moreover, transcription factor STAT3 positively regulates the expression of EPHX2. Inhibiting EPHX2 can prevent the activation of NF-κB signaling pathway. Next, through pharmacological inhibition experiments, we confirmed that LD4-PDT can reduce intestinal inflammation by inhibiting STAT3-EPHX2 axis. However, by treating normal intestinal epithelial cells and colon cancer cells with TPPU and Stattic, our data confirmed that the STAT3-EPHX2 axis does not exist in colon cancer. In this study, we demonstrated that the transcription factor STAT3 can positively regulate the expression of EPHX2 in normal colon. LD4 can alleviate UC by inhibiting the STAT3-EPHX2 axis, but this axis does not exist in colon cancer. LD4-PDT may become a new and effective method for treating UC.


Asunto(s)
Colitis Ulcerosa , Porfirinas , Factor de Transcripción STAT3 , Colitis Ulcerosa/tratamiento farmacológico , Colitis Ulcerosa/metabolismo , Colitis Ulcerosa/patología , Colitis Ulcerosa/inducido químicamente , Factor de Transcripción STAT3/metabolismo , Factor de Transcripción STAT3/antagonistas & inhibidores , Humanos , Animales , Ratones , Porfirinas/farmacología , Porfirinas/química , Estructura Molecular , Relación Dosis-Respuesta a Droga , Masculino , Relación Estructura-Actividad , Ratones Endogámicos C57BL
13.
J Infect Public Health ; 17(7): 102460, 2024 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-38820894

RESUMEN

BACKGROUND: The use of remdesivir in patients with coronavirus disease 2019 (COVID-19) and severe renal impairment has been approved; however, limited clinical data exist. Accordingly, we aimed to compare outcomes and adverse events associated with remdesivir in hospitalized patients with COVID-19, with and without severe renal impairment. METHODS: Hospitalized patients with COVID-19 undergoing a 5-day remdesivir course at Taipei Veterans General Hospital from April 1 to July 31, 2022, were enrolled. Comparative analysis of outcomes and safety between patients with or without severe renal impairment (estimated glomerular filtration rate of < 30 mL/min per 1.73 m2) were conducted. Prognostic factors associated with 28-day mortality in patients with severe renal impairment were investigated using logistic regression analysis. RESULTS: A total of 671 hospitalized patients, including 132 patients with severe renal impairment, who received a 5-day course of remdesivir were analyzed. The 28-day mortality was higher in patients with severe renal impairment than in patients without severe renal impairment (15.2% vs. 7.8%). The proportion of patients with acute kidney injury (AKI) and deteriorated liver function after completing remdesivir therapy was similar between the patients with and without severe renal impairment, and the recovery rate of AKI was similar in both groups. The sequential organ failure assessment score was an independent factor associated with 28-day mortality in patients with severe renal impairment. CONCLUSIONS: Remdesivir was well-tolerated in hospitalized patients with COVID-19, regardless of renal function. Our findings support the recent recommendation to administer remdesivir in patients with severe renal impairment.


Asunto(s)
Lesión Renal Aguda , Adenosina Monofosfato , Alanina , Antivirales , Tratamiento Farmacológico de COVID-19 , COVID-19 , Hospitalización , Insuficiencia Renal , SARS-CoV-2 , Humanos , Adenosina Monofosfato/análogos & derivados , Adenosina Monofosfato/uso terapéutico , Adenosina Monofosfato/efectos adversos , Alanina/análogos & derivados , Alanina/uso terapéutico , Alanina/efectos adversos , Masculino , Femenino , Anciano , Antivirales/uso terapéutico , Antivirales/efectos adversos , Persona de Mediana Edad , Resultado del Tratamiento , Hospitalización/estadística & datos numéricos , Lesión Renal Aguda/inducido químicamente , Lesión Renal Aguda/mortalidad , COVID-19/mortalidad , COVID-19/complicaciones , Anciano de 80 o más Años , Estudios Retrospectivos , Taiwán/epidemiología , Tasa de Filtración Glomerular
14.
Environ Toxicol Pharmacol ; 108: 104468, 2024 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-38759849

RESUMEN

Chlorpyrifos, widely used for pest control, is known to have various harmful effects, although its toxic effects in macrophages and the mechanisms underlying its toxicity remain unclear. The present study investigated the toxic effects of chlorypyrifos in a macrophage cell line. Here, we found that chlorpyrifos induced cytotoxicity and genotoxicity in RAW264.7 macrophages. Moreover, chlorpyrifos induced intracellular ROS production, subsequently leading to lipid peroxidation. Chlorpyrifos reduced the activation of antioxidative enzymes including superoxide dismutase, catalase, and glutathione peroxidase. Chlorpyrifos upregulated HO-1 expression and activated the Keap1-Nrf2 pathway, as indicated by enhanced Nrf2 phosphorylation and Keap1 degradation. Chlorpyrifos exerted effects on the following in a dose-dependent manner: cytotoxicity, genotoxicity, lipid peroxidation, intracellular ROS production, antioxidative enzyme activity reduction, HO-1 expression, Nrf2 phosphorylation, and Keap1 degradation. Notably, N-acetyl-L-cysteine successfully inhibited chlorpyrifos-induced intracellular ROS generation, cytotoxicity, and genotoxicity. Thus, chlorpyrifos may induce cytotoxicity and genotoxicity by promoting intracellular ROS production and suppressing the antioxidative defense system activation in macrophages.


Asunto(s)
Cloropirifos , Insecticidas , Proteína 1 Asociada A ECH Tipo Kelch , Macrófagos , Factor 2 Relacionado con NF-E2 , Especies Reactivas de Oxígeno , Cloropirifos/toxicidad , Animales , Ratones , Células RAW 264.7 , Especies Reactivas de Oxígeno/metabolismo , Factor 2 Relacionado con NF-E2/metabolismo , Macrófagos/efectos de los fármacos , Macrófagos/metabolismo , Proteína 1 Asociada A ECH Tipo Kelch/metabolismo , Insecticidas/toxicidad , Supervivencia Celular/efectos de los fármacos , Antioxidantes/farmacología , Peroxidación de Lípido/efectos de los fármacos , Hemo-Oxigenasa 1/metabolismo , Hemo-Oxigenasa 1/genética , Superóxido Dismutasa/metabolismo , Catalasa/metabolismo , Glutatión Peroxidasa/metabolismo , Estrés Oxidativo/efectos de los fármacos , Proteínas de la Membrana
16.
Ecotoxicol Environ Saf ; 279: 116446, 2024 Jul 01.
Artículo en Inglés | MEDLINE | ID: mdl-38772138

RESUMEN

The discovery of MPTP, an industrial chemical and contaminant of illicit narcotics, which causes parkinsonism in humans, non-human primates and rodents, has led to environmental pollutants exposure being convicted as key candidate in Parkinson's disease (PD) pathogenesis. Though MPTP-induced mitochondrial dysfunction and neuroinflammation are mainly responsible for the causative issue of MPTP neurotoxicity, the underlying mechanism involved remains unclear. Here, we reveal a novel signaling mechanism of CDK5-USP30-MAVS regulating MPTP/MPP+ induced PD. MPP+ (the toxic metabolite of MPTP) treatment not only led to the increased protein levels of USP30 but also to mitophagy inhibition, mitochondrial dysfunction, and MAVS-mediated inflammation in BV2 microglial cells. Both mitophagy stimulation (Urolithin A administration) and USP30 knockdown relieved MAVS-mediated inflammation via restoring mitophagy and mitochondrial function in MPP+-induced cell model. Notably, MPTP/MPP+-induced CDK5 activation regulated USP30 phosphorylation at serine 216 to stabilize USP30. Moreover, CDK5-USP30 pathway promoted MAVS-mediated inflammation in MPTP/MPP+-induced PD model. Inhibition of CDK5 not only had a protective effect on MPP+-induced cell model of PD via suppressing the upregulation of USP30 and the activation of MAVS inflammation pathway in vitro, but also prevented neurodegeneration in vivo and alleviated movement impairment in MPTP mouse model of PD. Overall, our study reveal that CDK5 blocks mitophagy through phosphorylating USP30 and activates MAVS inflammation pathway in MPTP/MPP+-induced PD model, which suggests that CDK5-USP30-MAVS signaling pathway represents a valuable treatment strategy for PD induced by environmental neurotoxic pollutants in relation to MPTP.


Asunto(s)
Quinasa 5 Dependiente de la Ciclina , Inflamación , Mitofagia , Transducción de Señal , Animales , Masculino , Ratones , 1-Metil-4-fenil-1,2,3,6-Tetrahidropiridina , Proteínas Adaptadoras Transductoras de Señales/metabolismo , Línea Celular , Quinasa 5 Dependiente de la Ciclina/metabolismo , Modelos Animales de Enfermedad , Inflamación/inducido químicamente , Ratones Endogámicos C57BL , Mitocondrias/efectos de los fármacos , Mitocondrias/metabolismo , Mitofagia/efectos de los fármacos , Enfermedad de Parkinson
17.
Support Care Cancer ; 32(6): 357, 2024 May 15.
Artículo en Inglés | MEDLINE | ID: mdl-38750287

RESUMEN

PURPOSE: Head and neck cancer (HNC) patients often suffer from shame and stigma due to treatment limitations or due to societal factors. The purpose of this study was to assess perceived body image, depression, physical and psychosocial function, and self-stigma, as well as to identify factors that predicted shame and stigma in patients with HNC. METHODS: This cross-sectional study recruited 178 HNC patients from the outpatient radiation department of a medical center in Northern Taiwan. Patients were assessed for patient reported outcomes using the Body Image Scale (BIS), the Hospital Anxiety and Depression Scale-Depression Subscale (HADS-Depression Subscale), the University of Washington Quality of Life Scale (UW-QOL) version 4.0, and the Shame and Stigma Scale (SSS). Data were analyzed by descriptive analysis, Pearson's product-moment correlation, and multiple regression. RESULTS: The two top-ranked subscales of shame and stigma were: "speech and social concerns" and "regret". Shame and stigma were positively correlated with a longer time since completion of treatment, more body image concerns, and higher levels of depression. They were negatively correlated with being male and having lower physical function. Multiple regression analysis showed that female gender, a longer time since completing treatment, higher levels of body image concern, greater depression, and less physical function predicted greater shame and stigma. These factors explained 74.7% of the variance in shame and stigma. CONCLUSION: Patients' body image concerns, depression, time since completing treatment, and physical function are associated with shame and stigma. Oncology nurses should assess and record psychological status, provide available resources, and refer appropriate HNC patients to counselling.


Asunto(s)
Imagen Corporal , Depresión , Neoplasias de Cabeza y Cuello , Calidad de Vida , Vergüenza , Estigma Social , Humanos , Estudios Transversales , Masculino , Femenino , Persona de Mediana Edad , Neoplasias de Cabeza y Cuello/psicología , Depresión/psicología , Depresión/etiología , Anciano , Imagen Corporal/psicología , Adulto , Taiwán , Análisis de Regresión , Factores Sexuales , Escalas de Valoración Psiquiátrica , Anciano de 80 o más Años , Encuestas y Cuestionarios
18.
Nutr Metab Cardiovasc Dis ; 34(8): 1932-1941, 2024 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-38755082

RESUMEN

BACKGROUND AND AIMS: Our study examined the trends of cardiovascular health metrics in individuals with coronary heart disease (CHD) and their associations with all-cause and cardiovascular disease mortality in the US. METHODS AND RESULTS: The cohort study was conducted based on the National Health and Nutrition Examination Survey 1999-2018 and their linked mortality files (through 2019). Baseline CHD was defined as a composite of self-reported doctor-diagnosed coronary heart disease, myocardial infarction, and angina pectoris. Cardiovascular health metrics were assessed according to the American Heart Association recommendations. Long-term all-cause and cardiovascular disease mortality were the primary outcomes. Survey-adjusted Cox regression models were used to estimate hazard ratios and corresponding 95% confidence intervals for the associations between cardiovascular health metrics and all-cause and cardiovascular disease mortality. The prevalence of one or fewer ideal cardiovascular health metrics increased from 14.15% to 22.79% (P < 0.001) in CHD, while the prevalence of more than four ideal cardiovascular health metrics decreased from 21.65% to 15.70 % (P < 0.001) from 1999 to 2018, respectively. Compared with CHD participants with one or fewer ideal cardiovascular health metrics, those with four or more ideal cardiovascular health metrics had a 35% lower risk (hazard ratio, 0.65; 95% confidence interval: 0.51, 0.82) and a 44% lower risk (0.56; 0.38, 0.84) in all-cause and cardiovascular disease mortality, respectively. CONCLUSION: Substantial declines were noted in ideal cardiovascular health metrics in US adults with CHD. A higher number of cardiovascular health metrics was associated with lower all-cause and cardiovascular disease mortality in them.


Asunto(s)
Causas de Muerte , Enfermedad Coronaria , Encuestas Nutricionales , Humanos , Masculino , Femenino , Estados Unidos/epidemiología , Persona de Mediana Edad , Enfermedad Coronaria/mortalidad , Enfermedad Coronaria/diagnóstico , Enfermedad Coronaria/epidemiología , Factores de Tiempo , Anciano , Medición de Riesgo , Adulto , Pronóstico , Estado de Salud , Prevalencia , Factores Protectores , Factores de Riesgo , Factores de Riesgo de Enfermedad Cardiaca , Indicadores de Salud , Conducta de Reducción del Riesgo
19.
Nutr Metab Cardiovasc Dis ; 34(8): 1837-1845, 2024 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-38760189

RESUMEN

BACKGROUND AND AIMS: Since the global burden of chronic kidney disease (CKD) is rising rapidly, the study aimed to assess the association of cardiovascular health (CVH) metrics with all-cause and cardiovascular disease (CVD) mortality among individuals with CKD. METHODS AND RESULTS: The cohort study included 5834 participants with CKD from the National Health and Nutrition Examination Survey 1999-2018. A composite CVH score was calculated based on smoking status, physical activity, body mass index, blood pressure, total cholesterol, diet quality, and glucose control. Primary outcomes were all-cause and CVD mortality as of December 31, 2019. Multivariable-adjusted Cox proportional hazards models were used to estimate the association between CVH metrics and deaths in CKD patients. During a median follow-up of 7.2 years, 2178 all-cause deaths and 779 CVD deaths were documented. Compared to participants with ideal CVH, individuals with intermediate CVH exhibited a 46.0% increase in all-cause mortality (hazard ratio, 1.46; 95% confidence interval: 1.17, 1.83), while those with poor CVH demonstrated a 101.0% increase (2.01; 1.54, 2.62). For CVD mortality, individuals with intermediate CVH experienced a 56.0% increase (1.56; 1.02, 2.39), and those with poor CVH demonstrated a 143.0% increase (2.43; 1.51, 3.91). Linear trends were noted for the associations of CVH with both all-cause mortality (P for trend <0.001) and CVD mortality (P for trend = 0.02). CONCLUSIONS: Lower CVH levels were associated with higher all-cause and CVD mortality in individuals with CKD, which highlights the importance of maintaining good CVH in CKD patients.


Asunto(s)
Enfermedades Cardiovasculares , Causas de Muerte , Factores de Riesgo de Enfermedad Cardiaca , Encuestas Nutricionales , Insuficiencia Renal Crónica , Humanos , Masculino , Femenino , Enfermedades Cardiovasculares/mortalidad , Enfermedades Cardiovasculares/diagnóstico , Insuficiencia Renal Crónica/mortalidad , Insuficiencia Renal Crónica/diagnóstico , Insuficiencia Renal Crónica/fisiopatología , Persona de Mediana Edad , Medición de Riesgo , Anciano , Factores de Tiempo , Estados Unidos/epidemiología , Pronóstico , Adulto , Presión Sanguínea , Glucemia/metabolismo , Ejercicio Físico , Dieta Saludable , Colesterol/sangre , Fumar/efectos adversos , Fumar/mortalidad , Fumar/epidemiología , Estado de Salud , Índice de Masa Corporal , Factores de Riesgo
20.
Adv Ther ; 41(6): 2399-2413, 2024 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-38691317

RESUMEN

INTRODUCTION: The cardiovascular disease risk reduction benefits of proprotein convertase subtilisin/kexin type 9 inhibitor monoclonal antibodies (PCSK9i mAb) and ezetimibe are dependent on remaining on treatment and being persistent and adherent. We estimated the percentage of patients on therapy, persistent and adherent at 182 and 365 days among US adults with health insurance who initiated a PCSK9i mAb (n = 16,588) or ezetimibe (n = 83,086) between July 2015 and December 2019. METHODS: Using pharmacy fill claims, being on therapy was defined as having a day of medication supply in the last 60 of 182 and 365 days following treatment initiation, being persistent was defined as not having a gap of 60 days or more between the last day of supply from one prescription fill and the next fill, and being adherent was defined by having medication available to take on ≥ 80% of the 182 and 365 days following treatment initiation. We estimated multivariable-adjusted risk ratios for being persistent and adherent comparing patients initiating PCSK9i mAb versus ezetimibe using Poisson regression. RESULTS: At 182 days following initiation, 80% and 68% were on therapy and 76% and 64% were persistent among patients who initiated a PCSK9i mAb and ezetimibe, respectively. Among patients who were on therapy and persistent at 182 days following initiation, 88% and 81% of those who initiated a PCSK9i mAb and ezetimibe, respectively, were on therapy at 365 days. Among those on therapy and persistent at 182 days following initiation, being persistent and being adherent at 365 days were each more common among PCSK9i mAb versus ezetimibe initiators (persistent: 82% versus 76%, multivariable-adjusted risk ratio 1.07; 95% confidence interval [CI] 1.06-1.08; adherent: 74% versus 71%, multivariable-adjusted risk ratio 1.02; 95% CI 1.01-1.03). CONCLUSIONS: These data suggest approaches to increase persistence and adherence to PCSK9i mAb and ezetimibe should be implemented prior to or within 182 days following treatment initiation.


Asunto(s)
Anticolesterolemiantes , Ezetimiba , Cumplimiento de la Medicación , Inhibidores de PCSK9 , Adulto , Anciano , Femenino , Humanos , Masculino , Persona de Mediana Edad , Anticuerpos Monoclonales/uso terapéutico , Anticolesterolemiantes/uso terapéutico , Ezetimiba/uso terapéutico , Hipercolesterolemia/tratamiento farmacológico , Cumplimiento de la Medicación/estadística & datos numéricos , Inhibidores de PCSK9/uso terapéutico , Proproteína Convertasa 9 , Estados Unidos
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