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1.
J Cell Physiol ; 238(5): 1046-1062, 2023 05.
Artículo en Inglés | MEDLINE | ID: mdl-36924049

RESUMEN

Hyperinsulinemia is a critical risk factor for the pathogenesis of insulin resistance (IR) in metabolic tissues, including the liver. Ethanolamine phosphate phospholyase (ETNPPL), a newly discovered metabolic enzyme that converts phosphoethanolamine (PEA) to ammonia, inorganic phosphate, and acetaldehyde, is abundantly expressed in liver tissue. Whether it plays a role in the regulation of hyperinsulinemia-induced IR in hepatocytes remains elusive. Here, we established an in vitro hyperinsulinemia-induced IR model in the HepG2 human liver cancer cell line and primary mouse hepatocyte via a high dose of insulin treatment. Next, we overexpressed ETNPPL by using lentivirus-mediated ectopic to investigate the effects of ETNPPL per se on IR without insulin stimulation. To explore the underlying mechanism of ETNPPL mediating hyperinsulinemia-induced IR in HepG2, we performed genome-wide transcriptional analysis using RNA sequencing (RNA-seq) to identify the downstream target gene of ETNPPL. The results showed that ETNPPL expression levels in both mRNA and protein were significantly upregulated in hyperinsulinemia-induced IR in HepG2 and primary mouse hepatocytes. Upon silencing ETNPPL, hyperinsulinemia-induced IR was ameliorated. Under normal conditions without IR in hepatocytes, overexpressing ETNPPL promotes IR, reactive oxygen species (ROS) generation, and AKT inactivation. Transcriptome analysis revealed that salt-inducible kinase 1 (SIK1) is markedly downregulated in the ETNPPL knockdown HepG2 cells. Moreover, disrupting SIK1 prevents ETNPPL-induced ROS accumulation, damage to the PI3K/AKT pathway and IR. Our study reveals that ETNPPL mediates hyperinsulinemia-induced IR through the SIK1/ROS-mediated inactivation of the PI3K/AKT signaling pathway in hepatocyte cells. Targeting ETNPPL may present a potential strategy for hyperinsulinemia-associated metabolic disorders such as type 2 diabetes.


Asunto(s)
Diabetes Mellitus Tipo 2 , Hiperinsulinismo , Resistencia a la Insulina , Animales , Humanos , Ratones , Diabetes Mellitus Tipo 2/metabolismo , Hepatocitos/metabolismo , Hiperinsulinismo/genética , Hiperinsulinismo/metabolismo , Insulina/metabolismo , Resistencia a la Insulina/genética , Fosfatidilinositol 3-Quinasas/metabolismo , Proteínas Serina-Treonina Quinasas/metabolismo , Proteínas Proto-Oncogénicas c-akt/genética , Proteínas Proto-Oncogénicas c-akt/metabolismo , Especies Reactivas de Oxígeno/metabolismo , Transducción de Señal
2.
Acta Biochim Biophys Sin (Shanghai) ; 54(11): 1658-1670, 2022 Nov 25.
Artículo en Inglés | MEDLINE | ID: mdl-36604146

RESUMEN

Ferroptosis, a newly defined and iron-dependent cell death, morphologically and biochemically differs from other cell deaths. Melanoma is a serious type of skin cancer, and the poor efficacy of current therapies causes a major increase in mortality. Sorafenib, a multiple kinase inhibitor, has been evaluated in clinical phase trials of melanoma patients, which shows modest efficacy. Emerging evidence has demonstrated that arginase 2 (Arg2), type 2 of arginase, is elevated in various types of cancers including melanoma. To investigate the role and underlying mechanism of Arg2 in sorafenib-induced ferroptosis in melanoma, reverse transcriptase-quantitative polymerase chain reaction, western blot analysis, adenovirus and lentivirus transduction, and in vivo tumor homograft model experiments were conducted. In this study, we show that sorafenib treatment leads to melanoma cell death and a decrease in Arg2 at both the mRNA and protein levels. Knockdown of Arg2 increases lipid peroxidation, which contributes to ferroptosis, and decreases the phosphorylation of Akt. In contrast, overexpression of Arg2 rescues sorafenib-induced ferroptosis, which is prevented by an Akt inhibitor. In addition, genetic and pharmacological suppression of Arg2 is able to ameliorate the anticancer activity of sorafenib in melanoma cells in vitro and in tumor homograft models. We also show that Arg2 suppresses ferroptosis by activating the Akt/GPX4 signaling pathway, negatively regulating sorafenib-induced cell death in melanoma cells. Our study not only uncovers a novel mechanism of ferroptosis in melanoma but also provides a new strategy for the clinical applications of sorafenib in melanoma treatment.


Asunto(s)
Arginasa , Ferroptosis , Melanoma , Humanos , Arginasa/genética , Muerte Celular , Melanoma/tratamiento farmacológico , Melanoma/genética , Inhibidores de Proteínas Quinasas , Proteínas Proto-Oncogénicas c-akt , Sorafenib/farmacología
3.
J Clin Lab Anal ; 35(12): e23991, 2021 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-34664737

RESUMEN

OBJECTIVE: Hepatocellular carcinoma (HCC) is one of the most common malignant tumours and a leading cause of cancer death. Circular RNA (circRNA) has been demonstrated to play an important role in regulating tumour development. The current study aims to explore the specific role of hsa_circ_0001806 during HCC progression. METHODS: The expression of hsa_circ_0001806 in HCC tissues and cells was measured through qRT-PCR. Cell proliferation, apoptosis and migration were measured using CCK-8 and Annexin V/PI staining kits, and Transwell assay. Bioinformatics prediction and dual-luciferase reporter assay were adopted to explore the mechanism underlying the cell function of hsa_circ_0001806 in HCC cells. In addition, glycolysis was assessed by measuring the glucose uptake, lactate production and ATP level using a glucose assay kit, fluorometric lactate assay kit and ATP detection assay kit. RESULTS: Hsa_circ_0001806 was up-regulated in HCC tissues and cells and positively associated with the advanced TNM stage, metastasis and poor overall survival. The overexpression of hsa_circ_0001806 promoted HCC cell proliferation, migration and glycolysis and inhibited cell apoptosis, while the silence of hsa_circ_0001806 showed an opposite effect. Furthermore, hsa_circ_0001806 acted as a sponge of miR-125b to up-regulate hexokinase II (HK2) expression. In addition, the inhibition of miR-125b and HK2 overexpression partly reversed the inhibitory effect of hsa_circ_0001806 silencing on HCC cell proliferation, migration and glycolysis. CONCLUSION: The inhibition of hsa_circ_0001806 suppressed HCC cell proliferation, migration and glycolysis through mediating miR-125b/HK2 axis.


Asunto(s)
Carcinoma Hepatocelular/patología , Neoplasias Hepáticas/patología , MicroARNs/genética , ARN Circular/genética , Adulto , Apoptosis/genética , Carcinoma Hepatocelular/genética , Carcinoma Hepatocelular/mortalidad , Línea Celular Tumoral , Movimiento Celular/genética , Femenino , Regulación Neoplásica de la Expresión Génica , Glucólisis/genética , Hexoquinasa/genética , Humanos , Neoplasias Hepáticas/genética , Neoplasias Hepáticas/mortalidad , Masculino , Persona de Mediana Edad , Pronóstico
4.
J Mater Sci Mater Med ; 31(12): 130, 2020 Nov 30.
Artículo en Inglés | MEDLINE | ID: mdl-33252704

RESUMEN

Bone marrow mesenchymal stem cells (BMSCs) are well-known for tissue regeneration and bone repair. This study intended to evaluate the potential efficiency BMSCs in poly(lactide-co-glycolide) (PLGA) scaffolds for the treatment of laryngeal cartilage defects. BMSCs were isolated and identified, and added with 10 ng/mL transforming growth factor-beta1 (TGF-ß1) or/and 300 ng/mL CDMP1 to coculture with PLGA scaffolds. The chondrogenic differentiation, migration, and apoptosis of BMSCs were detected under the action of TGF-ß1 or/and CDMP1. After successful modeling of laryngeal cartilage defects, PLGA scaffolds were transplanted into the rabbits correspondingly. After 8 weeks, laryngeal cartilage defects were assessed. Levels of collagen II, aggrecan, Sox9, Smad2, Smad3, ERK, and JNK were detected. The TGF-ß1 or/and CDMP1-induced BMSCs expressed collagen II, aggrecan, and Sox9, with enhanced cell migration and inhibited apoptosis. In addition, laryngeal cartilage defect in rabbits with TGF-ß1 or/and CDMP1 was alleviated, and levels of specific cartilage matrix markers were decreased. The combined effects of TGF-ß1 and CDMP1 were more significant. The TGF-ß1/Smad and ERK/JNK pathways were activated after TGF-ß1 or/and CDMP1 were added to BMSCs or rabbits. In summary, BMSCs and PLGA scaffolds repair laryngeal cartilage defects in rabbits by activating the TGF-ß1/Smad and ERK/JNK pathways under the coaction of TGF-ß1 and CDMP1.


Asunto(s)
Cartílago/metabolismo , Factor 5 de Diferenciación de Crecimiento/metabolismo , Células Madre Mesenquimatosas/citología , Factor de Crecimiento Transformador beta1/metabolismo , Animales , Apoptosis , Células de la Médula Ósea/citología , Diferenciación Celular , Movimiento Celular , Condrocitos/metabolismo , Condrogénesis/efectos de los fármacos , Femenino , Laringe/metabolismo , Laringe/fisiología , Masculino , Trasplante de Células Madre Mesenquimatosas , Conejos , Andamios del Tejido
5.
Mediators Inflamm ; 2019: 7659509, 2019.
Artículo en Inglés | MEDLINE | ID: mdl-31341422

RESUMEN

Nonalcoholic fatty liver disease (NAFLD) is a major health threat around the world and is characterized by dysbiosis. Primary bile acids are synthesized in the liver and converted into secondary bile acids by gut microbiota. Recent studies support the role of bile acids in modulating dysbiosis and NAFLD, while the mechanisms are not well elucidated. Dysbiosis may alter the size and the composition of the bile acid pool, resulting in reduced signaling of bile acid receptors such as farnesoid X receptor (FXR) and Takeda G protein-coupled receptor 5 (TGR5). These receptors are essential in lipid and glucose metabolism, and impaired bile acid signaling may cause NAFLD. Bile acids also reciprocally regulate the gut microbiota directly via antibacterial activity and indirectly via FXR. Therefore, bile acid signaling is closely linked to dysbiosis and NAFLD. During the past decade, stimulation of bile acid receptors with their agonists has been extensively explored for the treatment of NAFLD in both animal models and clinical trials. Early evidence has suggested the potential of bile acid receptor agonists in NAFLD management, but their long-term safety and effectiveness need further clarification.


Asunto(s)
Ácidos y Sales Biliares/metabolismo , Disbiosis/metabolismo , Enfermedad del Hígado Graso no Alcohólico/metabolismo , Animales , Ensayos Clínicos como Asunto , Microbioma Gastrointestinal , Glucosa/metabolismo , Humanos , Metabolismo de los Lípidos , Ratones , Enfermedad del Hígado Graso no Alcohólico/fisiopatología , Enfermedad del Hígado Graso no Alcohólico/terapia , Proteínas de Unión al ARN/metabolismo , Receptores Acoplados a Proteínas G/metabolismo , Factores de Riesgo , Transducción de Señal
6.
Cell Physiol Biochem ; 42(2): 729-742, 2017.
Artículo en Inglés | MEDLINE | ID: mdl-28618417

RESUMEN

BACKGROUND/AIMS: Elevated serum cholesterol levels were linked to a higher risk of colorectal adenoma and colorectal cancer (CRC), while the effect of cholesterol on CRC metastasis has not been widely studied. METHODS: CRC patients were enrolled to evaluate the association between low-density lipoprotein cholesterol (LDL) and CRC metastases, and LDL receptor (LDLR) level of the CRC tissue was assessed by immunohistochemistry. The effects of LDL on cell proliferation, migration and stemness were assessed in CRC cells in vitro, and the effects of high fat diet (HFD) on tumor growth and intestinal tumorigenicity were investigated in vivo. ROS assays, gene expression array analysis and western blot were used to explore the mechanisms of LDL in CRC progression. RESULTS: The level of LDL was positively correlated with liver metastases, and a higher level of LDL receptor (LDLR) expression was associated with advanced N and M stages of CRC. In vitro, LDL promoted the migration and sphere formation of CRC cells and induced upregulated expression of "stemness" genes including Sox2, Oct4, Nanog and Bmi 1. High-fat diet (HFD) significantly enhanced tumor growth in vivo, and was associated with a shorter intestinal length in azoxymethane/dextran sodium sulfate (AOM/DSS)-treated mice. Furthermore, LDL significantly elevated reactive oxygen species (ROS) levels and Whole Human Genome Microarray found 87 differentially expressed genes between LDL-treated CRC cells and controls, which were largely clustered in the MAP kinase (MAPK) signaling pathway. CONCLUSIONS: LDL enhances intestinal inflammation and CRC progression via activation of ROS and signaling pathways including the MAPK pathway. Inflammation is strongly associated with cancer initiation, and the role of LDL in intestinal tumorigenicity should be further explored.


Asunto(s)
LDL-Colesterol/genética , Colesterol/metabolismo , Neoplasias Colorrectales/genética , Neoplasias Hepáticas/genética , Anciano , Animales , Carcinogénesis/genética , Línea Celular Tumoral , Proliferación Celular/genética , Neoplasias Colorrectales/patología , Dieta Alta en Grasa , Progresión de la Enfermedad , Femenino , Regulación Neoplásica de la Expresión Génica , Humanos , Neoplasias Hepáticas/patología , Neoplasias Hepáticas/secundario , Masculino , Ratones , Persona de Mediana Edad , Proteínas de Neoplasias/biosíntesis , Especies Reactivas de Oxígeno/metabolismo , Transducción de Señal/genética
7.
Neurochem Res ; 42(8): 2246-2256, 2017 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-28374135

RESUMEN

Oxabicycloheptene sulfonate (OBHS) is a novel bicyclic core selective estrogen receptor modulator (SERM) with estrogen receptor (ER) antagonistic-activity and anti-inflammatory activity. However, little is known about protective action of OBHS on neurodegenerative disorders. In the present study, OBHS demonstrated a remarkably protective effect against amyloid beta (Aß) induced cytotoxicity via G-protein-coupled estrogen receptor 1 (GPER1) in rat astroglial cell line (C6). The C6 cell death induced by Aß was decreased by OBHS (1 µM) treatment for 45 min. This rapid protective action was blocked by GPER1 specific antagonist or siRNA knockdown. Inhibitors of phosphatidylinositol 3-kinase (PI3k)/Akt and extracellular signal-regulated kinase (ERK) activation also exhibited similar effects as GPER1 antagonist in blocking the protective effects of OBHS. Moreover, the expression of anti-apoptotic protein Bcl-2 was also increased by OBHS as a consequence of the activation of GPER1-PI3K/Akt and ERK pathways. Additionally, the phenyl sulfonate moiety of OBHS played a vital role in producing GPER1's agonist property according to the molecular docking analysis. These findings suggest that OBHS provide protection directed at enhancing glial cell survival through the activation of GPER1, which, in turn, offers a novel insight into the molecular mechanisms behind the potential application of OBHS in treating Alzheimer's disease (AD).


Asunto(s)
Péptidos beta-Amiloides/toxicidad , Antagonistas del Receptor de Estrógeno/farmacología , Sistema de Señalización de MAP Quinasas/fisiología , Fragmentos de Péptidos/toxicidad , Fosfatidilinositol 3-Quinasas/metabolismo , Proteínas Proto-Oncogénicas c-akt/metabolismo , Receptores Acoplados a Proteínas G/metabolismo , Animales , Línea Celular , Supervivencia Celular/efectos de los fármacos , Supervivencia Celular/fisiología , Relación Dosis-Respuesta a Droga , Activación Enzimática/efectos de los fármacos , Activación Enzimática/fisiología , Antagonistas del Receptor de Estrógeno/química , Sistema de Señalización de MAP Quinasas/efectos de los fármacos , Estructura Secundaria de Proteína , Ratas , Receptores Acoplados a Proteínas G/agonistas
8.
Zhongguo Zhong Yao Za Zhi ; 40(21): 4301-5, 2015 Nov.
Artículo en Zh | MEDLINE | ID: mdl-27071274

RESUMEN

Based on the software of traditional Chinese medicine inheritance support system (TCMISS), this article aims to analyze the experience and composition rules for cough from the descendant of Meng He Medical School, Xu Di-hua. The cough cases treated by Xu Di-hua were collected, and recorded into TCMISS (V2.0). Data mining methods such as Apriori algorithm and complex system entropy cluster were used to analyze the medication principles of Xu Di-hua for cough from pathogenesis and therapeutie aspects, and dig out the frequency of the herbs in prescription, core medicine and new combinations. The experience of curing cough from Professor Xu Di-hua were well found in the research. He is good at choosing prescriptions accurately, and pays attention to simultaneous use of cold and moisture drugs with combination of tonification and purgation. He is skilled in adding or reducing materia medica flexibly, as well as regulating lung to relieve cough and eliminating phlegm by clearing heat.


Asunto(s)
Tos/tratamiento farmacológico , Medicamentos Herbarios Chinos/química , Medicamentos Herbarios Chinos/uso terapéutico , Algoritmos , Minería de Datos , Quimioterapia Combinada , Femenino , Humanos , Masculino , Materia Medica , Medicina Tradicional China
9.
Transl Psychiatry ; 14(1): 105, 2024 Feb 21.
Artículo en Inglés | MEDLINE | ID: mdl-38383536

RESUMEN

Alzheimer's disease is one of the most important health-care challenges in the world. For decades, numerous efforts have been made to develop therapeutics for Alzheimer's disease, but most clinical trials have failed to show significant treatment effects on slowing or halting cognitive decline. Among several challenges in such trials, one recently noticed but unsolved is biased allocation of fast and slow cognitive decliners to treatment and placebo groups during randomization caused by the large individual variation in the speed of cognitive decline. This allocation bias directly results in either over- or underestimation of the treatment effect from the outcome of the trial. In this study, we propose a stratified randomization method using the degree of cognitive decline predicted by an artificial intelligence model as a stratification index to suppress the allocation bias in randomization and evaluate its effectiveness by simulation using ADNI data set.


Asunto(s)
Enfermedad de Alzheimer , Disfunción Cognitiva , Aprendizaje Profundo , Humanos , Enfermedad de Alzheimer/tratamiento farmacológico , Inteligencia Artificial , Ensayos Clínicos como Asunto
10.
Heliyon ; 10(1): e23377, 2024 Jan 15.
Artículo en Inglés | MEDLINE | ID: mdl-38148818

RESUMEN

Objective: To analyze the current research status, hotspots, and frontiers in the field of Gastrointestinal (GI) cancer and quality of life (QoL) through the bibliometrics method, and to provide references and guidance for future research. Methods: Literature related to GI cancer and QoL from April 1, 2003 to March 31, 2023 was retrieved from the Web of Science Core Collection database. CiteSpace 6.2.R1 was performed for collaboration analysis, keyword co-occurrence analysis, and document co-citation analysis. Results: A total of 1224 publications were included in this study. There has been a significant increase in the number of publications in this field over the past two decades. The United States, the Karolinska Institute and the University of Amsterdam, and Pernilla Lagergren are the most prolific country, institution, and author, respectively. The links between most of the research constituents were relatively thin (centrality <0.1). The keyword analysis indicates that the benefits of physical activity on QoL, the levels of psychological distress and its relationship with QoL, as well as the development and validation of QoL measurement tools have been the research hotspots. Open-label/double-blind trials exploring therapeutic interventions and more targeted new drugs or more effective drug combinations, and longitudinal studies determining the direction of the association between psychological distress and QoL at different time points, may be emerging trends in this field. Conclusion: The cooperation among countries, institutions, and authors in this field should be strengthened. In addition, the health benefits of light physical activity, interventions for QoL, trajectory and direction of the relationship between psychological distress and QoL may be the focus of future research.

11.
Front Oncol ; 14: 1374743, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38800413

RESUMEN

Gastric cancer (GC) imposes a heavy burden on global public health, and microRNAs (miRNAs) play a crucial role in the diagnosis and treatment of GC. Therefore, it is necessary to clarify the hotspots and frontiers in the field of miRNAs in GC to guide future research. A total of 2,051 publications related to miRNAs in GC from January 2013 to December 2023 were searched from the Web of Science Core Collection database. CiteSpace was used to identify research hotspots and delineate developmental trends. In the past decade, China, Nanjing Medical University, and Ba Yi were the most contributing research country, institute, and author in this field, respectively. The role of miRNAs as biomarkers in GC, the mechanism of miRNAs in the progression of GC, and the impact of the mutual effects between miRNAs and Helicobacter pylori on GC have been regarded as the research hotspots. The mechanisms of miRNAs on glucose metabolism and the application of the roles of circular RNAs as miRNA sponges in GC treatment will likely be frontiers. Overall, this study called for strengthened cooperation to identify targets and therapeutic regimes for local specificity and high-risk GC types, and to promote the translation of research results into clinical practice.

12.
Nurs Open ; 11(1): e2047, 2024 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-38268295

RESUMEN

AIM: To explore whether and to what extent, nurse-patient assessment differences mediate the association between nurse-to-patient ratios and readiness for hospital discharge, and examine whether nurse-patient characteristics moderate the indirect and/or direct effect of mediation model. DESIGN: A cross-sectional study was carried out from March 2021 to December 2022. METHODS: A total of 523 pairs of gastrointestinal cancer patients with PICC and their nurses were recruited. All the participants were invited to complete the general information questionnaire and the Readiness for Hospital Discharge Scale. Outcome measure was patient-reported readiness for hospital discharge. This study was reported according to the STROBE checklist. RESULTS: The patients reported a low level of readiness for hospital discharge. Nurse-patient assessment differences were positively associated with nurse-to-patient ratios but negatively associated with readiness for hospital discharge. Furthermore, nurse-patient assessment differences fully mediated the effect of nurse-to-patient ratios on readiness for hospital discharge, and age and gender of patients only moderated the indirect path of mediation model.


Asunto(s)
Lista de Verificación , Alta del Paciente , Humanos , Estudios Transversales , Relaciones Enfermero-Paciente , Hospitales
13.
Bioorg Med Chem Lett ; 23(13): 3793-7, 2013 Jul 01.
Artículo en Inglés | MEDLINE | ID: mdl-23726343

RESUMEN

A new series of estrogen-derived metal complexes were synthesized and characterized. The functionalized estrogen receptor ligands were prepared by a four-step synthetic strategy, and then three transition metal Pd, Ni, Zn were introduced readily to give the title metal complexes, in which the squaramide was introduced as ion acceptor for the first time in the development of estrogen-derived metal complexes for estrogen receptor. Upon binding to estrogen receptors, all of the estrogen conjugates exhibited acceptable binding affinity (up to 4.04% relative to estradiol), and in transcription assays, all the compounds are agonists on ERα. Molecular modeling studies suggest a structural basis for the agonist activity of these compounds.


Asunto(s)
Diseño de Fármacos , Estrógenos/química , Compuestos Organometálicos/farmacología , Receptores de Estrógenos/agonistas , Esteroides/química , Elementos de Transición/química , Relación Dosis-Respuesta a Droga , Humanos , Modelos Moleculares , Compuestos Organometálicos/síntesis química , Compuestos Organometálicos/química , Relación Estructura-Actividad
14.
Front Neurol ; 14: 1139746, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37064184

RESUMEN

Objective: The study aimed to analyze the research status, hotspots, and frontiers of global research on cancer and sleep through bibliometrics and provide references and guidance for future research. Methods: The literature regarding cancer and sleep from 2002 to 2022 was searched from the Web of Science Core Collection (WoSCC) database. CiteSpace 5.6.R3 was performed for visualization analysis. Results: A total of 1,172 publications were identified. The number of publications in the field has gradually increased over the past two decades. The United States had the most prominent contributions. Taipei Medical University and the University of California, San Francisco, and David Gozal were the most prolific institutions and author, respectively. The most published academic journal was Supportive Care in Cancer. The research hotspots can be summarized into the symptom cluster intervention for cancer survivors and the association between cancer and melatonin and/or obstructive sleep apnea (OSA). The complex interaction between cancer and sleep disruption and the influencing factors of sleep quality may be the emerging trends of research. Conclusion: This study systematically analyzed the hotspots and frontiers in the field of cancer and sleep and called for strengthening cooperation among countries, institutions, and authors. In addition, intervention measures for the cancer symptom cluster, the bioavailability of exogenous melatonin, the causal relationship between OSA and cancer, the mechanism of tumor-induced sleep disruption, the dose-response relationship between sleep duration and cancer risk, and the path relationship between sleep quality influencing factors may be the focus of future research.

15.
Front Psychiatry ; 14: 1184797, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37275967

RESUMEN

Background: Functional dyspepsia (FD) is most often a meal-induced syndrome. Studies using resting-state functional magnetic resonance imaging (rs-fMRI) reported abnormal connectivity in areas related to pain processing in FD. However, only a few studies have attempted to determine how meal ingestion affects the brain's working patterns. Through rs-fMRI, this study observed how meal ingestion affected brain regions related to visceral hypersensitivity and emotional response networks in FD patients. Methods: A total of 30 FD patients and 32 healthy controls (HC) were enrolled and underwent clinical investigations. Rs-fMRI was performed twice after a 4-h fast and 50 min after a meal. The mean functional connectivity strength (FCS) values were extracted from brain regions with significant differences to show the trend of changes related to meal ingestion after FCS analyses. Results: Depression, anxiety, sleep disturbances, and weight loss were more common in FD patients (P ≤ 0.001). Compared with HCs (corrected cluster P-value < 0.05), FD patients had significantly higher FCS in the right middle frontal gyrus before meals and higher meal-induced FCS in the left postcentral gyrus. HCs had greater meal-induced activation in the right precuneus and anterior cingulate cortex. FD patients had a decreasing trend in the right inferior frontal gyrus compared to the increasing trend in HCs. We only found anxiety to be negatively correlated with FCS in the right inferior frontal gyrus in FD (r = -0.459, p = 0.048, uncorrected). Conclusions: In this study, we discovered that FD patients have different perceptual and emotional responses to food intake in defined brain areas, providing promising impetus for understanding pathogenic brain mechanisms in FD.

16.
BMJ Open ; 13(4): e072474, 2023 04 11.
Artículo en Inglés | MEDLINE | ID: mdl-37041061

RESUMEN

OBJECTIVE: To explore the associations between the consumption frequencies of alcohol, tea and sugar-sweetened beverages (SSBs) and the hypertension risk among Chinese adults. DESIGN: A longitudinal study of the effect of beverage consumption on hypertension risk. SETTING: Nine provinces in China, including Jiangsu, Hubei, Hunan, Guangxi, Guizhou, Liaoning, Heilongjiang, Shandong and Henan. PARTICIPANTS: The longitudinal data of the China Health and Nutrition Survey from 2004 to 2015 were used. A total of 4427 participants from 9 provinces were included at baseline. OUTCOME: First incidence of hypertension. RESULTS: During a mean follow-up of 8.7 years, 1478 participants developed hypertension. Alcohol consumption more than twice a week in young men (HR 1.86, 95% CI 1.09 to 3.18) or middle-aged men (HR 1.37, 95% CI 1.01 to 1.87) was associated with a higher hypertension risk. Middle-aged women who consumed tea frequently (HR 0.71, 95% CI 0.52 to 0.97), or young women who consumed SSBs less than once a week (HR 0.31, 95% CI 0.14 to 0.67) had a lower risk of hypertension. CONCLUSIONS: High-frequency alcohol consumption increased the risk of hypertension in men, and frequent tea consumption and low-frequency SSBs consumption were associated with lower risk of hypertension in women. Consumption frequency of beverages was also suggested to be considered in the prevention and control of hypertension.


Asunto(s)
Bebidas , Hipertensión , Persona de Mediana Edad , Masculino , Adulto , Humanos , Femenino , Estudios de Cohortes , Estudios Longitudinales , China , Hipertensión/epidemiología ,
17.
Free Radic Biol Med ; 199: 126-140, 2023 04.
Artículo en Inglés | MEDLINE | ID: mdl-36841363

RESUMEN

Excessive free fatty acids (FFAs) accumulation is a leading risk factor for the pathogenesis of insulin resistance (IR) in metabolic tissues, including the liver. Ethanolamine-phosphate phospho-lyase (ETNPPL), a newly identified metabolic enzyme, catalyzes phosphoethanolamine (PEA) to ammonia, inorganic phosphate, and acetaldehyde and is highly expressed in hepatic tissue. Whether it plays a role in regulating FFA-induced IR in hepatocytes has yet to be understood. In this study, we established an in vitro palmitic acid (PA)-induced IR model in human HepG2 cells and mouse AML12 cells with chronic treatment of PA. Next, we overexpressed ETNPPL by using lentivirus-mediated ectopic to investigate the effects of ETNPPL per se on IR without PA stimulation. We show that ETNPPL expression is significantly elevated in PA-induced IR and that silencing ETNPPL ameliorates this IR in hepatocytes. Inversely, overexpressing ETNPPL under normal conditions without PA promotes IR, reactive oxygen species generation, and ARG2 activation in both HepG2 and AML12 cells. Moreover, ETNPPL depletion markedly down-regulates ARG2 expression in hepatocytes. Besides, silencing ARG2 prevents ETNPPL-induced ROS accumulation and inhibition of autophagic flux and IR in hepatocytes. Finally, we found that phytopharmaceutical disruption of ETNPPL by quercetin ameliorates PA-induced IR in hepatocytes. Our study discloses that ETNPPL inhibiting autophagic flux mediates insulin resistance triggered by PA in hepatocytes via ARG2/ROS signaling cascade. Our findings provide novel insights into elucidating the pathogenesis of obesity-associated hepatic IR, suggesting that targeting ETNPPL might represent a potential approach for T2DM therapy.


Asunto(s)
Resistencia a la Insulina , Humanos , Ratones , Animales , Resistencia a la Insulina/genética , Especies Reactivas de Oxígeno/metabolismo , Ácido Palmítico/toxicidad , Hígado/metabolismo , Hepatocitos/metabolismo , Autofagia/genética
18.
MedComm (2020) ; 4(4): e345, 2023 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-37576863

RESUMEN

Colorectal cancer (CRC) is a major malignancy threatening the health of people in China and screening could be effective for preventing the occurrence and reducing the mortality of CRC. We conducted a multicenter, prospective clinical study which recruited 4,245 high-risk CRC individuals defined as having positive risk-adapted scores or fecal immunochemical test (FIT) results, to evaluate the clinical performance of the multitarget fecal immunochemical and stool DNA (FIT-sDNA) test for CRC screening. Each participant was asked to provide a stool sample prior to bowel preparation, and FIT-sDNA test and FIT were performed independently of colonoscopy. We found that 186 (4.4%) were confirmed to have CRC, and 375 (8.8%) had advanced precancerous neoplasia among the high CRC risk individuals. The sensitivity of detecting CRC for FIT-sDNA test was 91.9% (95% CI, 86.8-95.3), compared with 62.4% (95% CI, 54.9-69.3) for FIT (P < 0.001). The sensitivity for detecting advanced precancerous neoplasia was 63.5% (95% CI, 58.3-68.3) for FIT-sDNA test, compared with 30.9% (95% CI, 26.3-35.6) for FIT (P < 0.001). Multitarget FIT-sDNA test detected more colorectal advanced neoplasia than FIT. Overall, these findings indicated that in areas with limited colonoscopy resources, FIT-sDNA test could be a promising further risk triaging modality to select patients for colonoscopy in CRC screening.

19.
Org Biomol Chem ; 10(48): 9689-99, 2012 Dec 28.
Artículo en Inglés | MEDLINE | ID: mdl-23149805

RESUMEN

We have synthesized a series of novel SERMs bearing a ferrocenyl unit based on a three-dimensional oxabicyclo[2.2.1]heptene core scaffold. These compounds displayed high receptor binding affinities as well as ERα or ERß selectivity. In cell proliferation assays, we found that these ligands were cytotoxic at micromolar concentrations in both ER-positive and ER-negative breast cancer cells. On further examination, we found that the antiproliferative effects of compounds 9b, 10h and 11b on MCF-7 cells line does not arise from antiestrogenicity, but rather proceeds through a cytotoxic pathway. Possible mechanisms for the unique activities of these ligands were also investigated by molecular modeling. These new ligands could act as scaffolds for the development of novel anti-breast cancer agents.


Asunto(s)
Antineoplásicos/síntesis química , Compuestos Bicíclicos con Puentes/química , Proliferación Celular/efectos de los fármacos , Descubrimiento de Drogas , Compuestos Ferrosos/química , Moduladores Selectivos de los Receptores de Estrógeno/síntesis química , Antineoplásicos/química , Antineoplásicos/farmacología , Relación Dosis-Respuesta a Droga , Ensayos de Selección de Medicamentos Antitumorales , Femenino , Humanos , Ligandos , Células MCF-7 , Modelos Moleculares , Estructura Molecular , Unión Proteica , Receptores de Estrógenos/biosíntesis , Moduladores Selectivos de los Receptores de Estrógeno/química , Moduladores Selectivos de los Receptores de Estrógeno/farmacología , Relación Estructura-Actividad
20.
Breast ; 63: 113-122, 2022 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-35366505

RESUMEN

BACKGROUND: Cognitive impairment has a great negative impact on quality of life for breast cancer survivors. Emerging evidence suggested that physical exercise can improve cognitive function in order adults with Alzheimer's disease. However, less is known about the effects of physical exercise on cognitive function for breast cancer survivors. The purpose of this meta-analysis was to evaluate the effect of physical exercise on cognitive function in breast cancer survivors. METHODS: EMBASE, the Cochrane Library, Web of Science and PubMed were searched from the establishment of the databases to June 2021. Randomized controlled trials were included. All analysis were conducted using the Revman 5.3. RESULTS: 12 studies (936 participants) indicated that exercise improved self-reported cognitive function (MD 10.12, 95% CI [5.49,14.76], p < 0.0001), cognitive fatigue (MD -5.41, 95% CI [-10.31,-0.51], p = 0.03) and executive function (MD -13.63, 95% CI [-21.86,-5.39], p = 0.0001). CONCLUSION: Physical exercise can improve cognitive function for breast cancer survivors, particularly in self-reported cognitive function, and executive function. Future studies need to explore the effect of exercise on cognitive function from the frequency and duration of exercise.


Asunto(s)
Neoplasias de la Mama , Supervivientes de Cáncer , Adulto , Neoplasias de la Mama/tratamiento farmacológico , Cognición , Ejercicio Físico/psicología , Femenino , Humanos , Calidad de Vida , Ensayos Clínicos Controlados Aleatorios como Asunto
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