RESUMO
An increasing evidence supports that cell competition, a vital selection and quality control mechanism in multicellular organisms, is involved in tumorigenesis and development; however, the mechanistic contributions to the association between cell competition and tumor drug resistance remain ill-defined. In our study, based on a contructed lenvitinib-resistant hepatocellular carcinoma (HCC) cells display obvious competitive growth dominance over sensitive cells through reprogramming energy metabolism. Mechanistically, the hyperactivation of BCL2 interacting protein3 (BNIP3) -mediated mitophagy in lenvatinib-resistant HCC cells promotes glycolytic flux via shifting energy production from mitochondrial oxidative phosphorylation to glycolysis, by regulating AMP-activated protein kinase (AMPK) -enolase 2 (ENO2) signaling, which perpetually maintaining lenvatinib-resistant HCC cells' competitive advantage over sensitive HCC cells. Of note, BNIP3 inhibition significantly sensitized the anti-tumor efficacy of lenvatinib in HCC. Our findings emphasize a vital role for BNIP3-AMPK-ENO2 signaling in maintaining the competitive outcome of lenvitinib-resistant HCC cells via regulating energy metabolism reprogramming; meanwhile, this work recognizes BNIP3 as a promising target to overcome HCC drug resistance.
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Carcinoma Hepatocelular , Resistencia a Medicamentos Antineoplásicos , Metabolismo Energético , Neoplasias Hepáticas , Proteínas de Membrana , Mitofagia , Compostos de Fenilureia , Quinolinas , Humanos , Quinolinas/farmacologia , Mitofagia/efeitos dos fármacos , Carcinoma Hepatocelular/metabolismo , Carcinoma Hepatocelular/patologia , Carcinoma Hepatocelular/tratamento farmacológico , Carcinoma Hepatocelular/genética , Neoplasias Hepáticas/metabolismo , Neoplasias Hepáticas/patologia , Neoplasias Hepáticas/tratamento farmacológico , Neoplasias Hepáticas/genética , Proteínas de Membrana/metabolismo , Metabolismo Energético/efeitos dos fármacos , Compostos de Fenilureia/farmacologia , Resistencia a Medicamentos Antineoplásicos/efeitos dos fármacos , Animais , Linhagem Celular Tumoral , Proteínas Proto-Oncogênicas/metabolismo , Camundongos , Camundongos Nus , Proliferação de Células/efeitos dos fármacos , Transdução de Sinais/efeitos dos fármacos , Proteínas Quinases Ativadas por AMP/metabolismo , Camundongos Endogâmicos BALB C , Reprogramação MetabólicaRESUMO
Current guidelines encourage large studies in a diverse population to establish normal reference ranges for three-dimensional (3D) echocardiography for different ethnic groups. This study was designed to establish the normal values of 3D-left ventricular (LV) and left atrial (LA) volume and function in a nationwide, population-based cohort of healthy Han Chinese adults. A total of 1117 healthy volunteers aged 18-89 years were enrolled from 28 collaborating laboratories in China. Two sets of 3D echocardiographic instruments were used, and full-volume echocardiographic images were recorded and transmitted to a core laboratory for image analysis with a vendor-independent off-line workstation. Finally, 866 volunteers (mean age of 48.4 years, 402 men) were qualified for final analysis. Most parameters exhibited substantial differences between different sex and age groups, even after indexation by body surface area. The normal ranges of 3D-LV and 3D-LA volume and function differed from those recommended by the American Society of Echocardiography and the European Association of Cardiovascular Imaging guidelines, presented by the World Alliance Societies of Echocardiography (WASE) study, and from the 2D values in the EMINCA study. The normal reference values of 3D echocardiography-derived LV and LA volume and function were established for the first time in healthy Han Chinese adults. Normal ranges of 3D-LV and 3D-LA echocardiographic measurements stratified with sex, age, and race should be recommended for clinical applications.
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Ecocardiografia Tridimensional , Átrios do Coração , Ventrículos do Coração , Humanos , Pessoa de Meia-Idade , Masculino , Adulto , Ecocardiografia Tridimensional/métodos , Feminino , Idoso , Ventrículos do Coração/diagnóstico por imagem , Ventrículos do Coração/anatomia & histologia , Átrios do Coração/diagnóstico por imagem , Átrios do Coração/anatomia & histologia , China , Valores de Referência , Adulto Jovem , Adolescente , Idoso de 80 Anos ou mais , Povo Asiático , Função Ventricular Esquerda , Função do Átrio Esquerdo , População do Leste AsiáticoRESUMO
BACKGROUND: Deep brain stimulation (DBS) is a promising therapy for refractory Gilles de la Tourette syndrome (GTS). However, its long-term efficacy, safety, and recommended surgical age remain controversial, requiring evidence to compare different age categories. METHODS: This retrospective cohort study recruited 102 GTS patients who underwent DBS between October 2006 and April 2022 at two national centers. Patients were divided into two age categories: children (aged < 18 years; n = 34) and adults (aged ≥ 18 years; n = 68). The longitudinal outcomes as tic symptoms were assessed by the YGTSS, and the YBOCS, BDI, and GTS-QOL were evaluated for symptoms of obsessive-compulsive disorder (OCD), depression, and quality of life, respectively. RESULTS: Overall, these included patients who finished a median 60-month follow-up, with no significant difference between children and adults (p = 0.44). Overall, the YGTSS total score showed significant postoperative improvements and further improved with time (improved 45.2%, 51.6%, 55.5%, 55.6%, 57.8%, 61.4% after 6, 12, 24, 36, 48, and ≥ 60 months of follow-up compared to baseline, respectively) in all included patients (all p < 0.05). A significantly higher improvement was revealed in children than adults at ≥ 60 months of follow-up in the YGTSS scores (70.1% vs 55.9%, p = 0.043), and the time to achieve 60% improvement was significantly shorter in the children group (median 6 months vs 12 months, p = 0.013). At the last follow-up, the mean improvements were 45.4%, 48.9%, and 55.9% and 40.3%, 45.4%, and 47.9% in YBOCS, BDI, and GTS-QOL scores for children and adults, respectively, which all significantly improved compared to baseline (all p < 0.05) but without significant differences between these two groups (all p > 0.05), and the children group received significantly higher improvement in GTS-QOL scores than adults (55.9% vs. 47.9%, p = 0.049). CONCLUSIONS: DBS showed acceptable long-term efficacy and safety for both children and adults with GTS. Surgeries performed for patients younger than 18 years seemed to show acceptable long-term efficacy and safety and were not associated with increased risks of loss of benefit compared to patients older than 18 at the time of surgery. However, surgeries for children should also be performed cautiously to ensure their refractoriness and safety.
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Estimulação Encefálica Profunda , Síndrome de Tourette , Humanos , Síndrome de Tourette/terapia , Estimulação Encefálica Profunda/métodos , Masculino , Feminino , Criança , Adulto , Adolescente , Estudos Retrospectivos , Seguimentos , Adulto Jovem , Resultado do Tratamento , Qualidade de Vida , Pessoa de Meia-Idade , Fatores EtáriosRESUMO
Three-dimensional (3D) echocardiography is an emerging technique for assessing right ventricular (RV) volume and function, but 3D-RV normal values from a large Chinese population are still lacking. The aim of the present study was to establish normal values of 3D-RV volume and function in healthy Chinese volunteers. A total of 1117 Han Chinese volunteers from 28 laboratories in 20 provinces of China were enrolled, and 3D-RV images of 747 volunteers with optimal image quality were ultimately analyzed by a core laboratory. Both vendor-dependent and vendor-independent software platforms were used to analyze the 3D-RV images. We found that men had larger RV volumes than women did in the whole population, even after indexing to body surface area, and older individuals had smaller RV volumes. The normal RV volume was significantly smaller than that recommended by the American Society of Echocardiography/European Association of Cardiovascular Imaging guidelines in both sexes. There were significant differences in 3D-RV measurements between the two vendor ultrasound systems and the different software platforms. The echocardiographic measurements in normal Chinese adults II study revealed normal 3D-RV volume and function in a large Chinese population, and there were significant differences between the sexes, ages, races, and vendor groups. Thus, normal 3D-RV values should be stratified by sex, age, race, and vendor.
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Immune checkpoint inhibitors have limited efficacy in hepatocellular carcinoma (HCC). Macrophages are the most abundant immune cells in HCC, suggesting that a better understanding of the intrinsic processes by which tumor cells regulate macrophages could help identify strategies to improve response to immunotherapy. As signaling lymphocytic activation molecule (SLAM) family members regulate various immune functions, we investigated the role of specific SLAM receptors in the immunobiology of HCC. Comparison of the transcriptomic landscapes of immunotherapy-responsive and nonresponsive patients with advanced HCC identified SLAMF7 upregulation in immunotherapy-responsive HCC, and patients with HCC who responded to immunotherapy also displayed higher serum levels of SLAMF7. Loss of Slamf7 in liver-specific knockout mice led to increased hepatocarcinogenesis and metastasis, elevated immunosuppressive macrophage infiltration, and upregulated PD-1 expression in CD8+ T cells. HCC cell-intrinsic SLAMF7 suppressed MAPK/ATF2-mediated CCL2 expression to regulate macrophage migration and polarization in vitro. Mechanistically, SLAMF7 associated with SH2 domain-containing adaptor protein B (SHB) through its cytoplasmic 304 tyrosine site to facilitate the recruitment of SHIP1 to SLAMF7 and inhibit the ubiquitination of TRAF6, thereby attenuating MAPK pathway activation and CCL2 transcription. Pharmacological antagonism of the CCL2/CCR2 axis potentiated the therapeutic effect of anti-PD-1 antibody in orthotopic HCC mouse models with low SLAMF7 expression. In conclusion, this study highlights SLAMF7 as a regulator of macrophage function and a potential predictive biomarker of immunotherapy response in HCC. Strategies targeting CCL2 signaling to induce macrophage repolarization in HCC with low SLAMF7 might enhance the efficacy of immunotherapy. SIGNIFICANCE: CCL2 upregulation caused by SLAMF7 deficiency in hepatocellular carcinoma cells induces immunosuppressive macrophage polarization and confers resistance to immune checkpoint blockade, providing potential biomarkers and targets to improve immunotherapy response in patients.
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Carcinoma Hepatocelular , Quimiocina CCL2 , Imunoterapia , Neoplasias Hepáticas , Macrófagos , Camundongos Knockout , Família de Moléculas de Sinalização da Ativação Linfocitária , Carcinoma Hepatocelular/imunologia , Carcinoma Hepatocelular/patologia , Carcinoma Hepatocelular/metabolismo , Carcinoma Hepatocelular/genética , Neoplasias Hepáticas/imunologia , Neoplasias Hepáticas/patologia , Neoplasias Hepáticas/metabolismo , Neoplasias Hepáticas/genética , Animais , Família de Moléculas de Sinalização da Ativação Linfocitária/metabolismo , Família de Moléculas de Sinalização da Ativação Linfocitária/genética , Humanos , Camundongos , Imunoterapia/métodos , Quimiocina CCL2/metabolismo , Macrófagos/imunologia , Macrófagos/metabolismo , Transdução de Sinais , Camundongos Endogâmicos C57BL , Linhagem Celular TumoralRESUMO
The aim of this study was to use a combination of physiologically based pharmacokinetic (PBPK) modeling and urinary glucose excretion (UGE) modeling to predict the time profiles of pharmacokinetics (PK) and UGE for the sodium-glucose cotransporter 2 (SGLT2) inhibitor empagliflozin (EMP). Additionally, the study aims to explore the compensatory effect of SGLT1 in renal glucose reabsorption (RGR) when SGLT2 is inhibited. The PBPK-UGE model was developed using physicochemical and biochemical properties, renal physiological parameters, binding kinetics, glucose, and Na+ reabsorption kinetics by SGLT1/2. For area under the plasma concentration-time curve, maximum plasma concentration, and cumulative EMP excretion in urine, the predicted values fell within a range of 0.5-2.0 when compared to observed data. Additionally, the simulated UGE data also matched well with the clinical data, further validating the accuracy of the model. According to the simulations, SGLT1 and SGLT2 contributed approximately 13% and 87%, respectively, to RGR in the absence of EMP. However, in the presence of EMP at doses of 2.5 and 10 mg, the contribution of SGLT1 to RGR significantly increased to approximately 76%-82% and 89%-93%, respectively, in patients with type 2 diabetes mellitus. Furthermore, the model supported the understanding that the compensatory effect of SGLT1 is the underlying mechanism behind the moderate inhibition observed in total RGR. The PBPK-UGE model has the capability to accurately predict the PK and UGE time profiles in humans. Furthermore, it provides a comprehensive analysis of the specific contributions of SGLT1 and SGLT2 to RGR in the presence or absence of EMP.
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Compostos Benzidrílicos , Glucosídeos , Modelos Biológicos , Transportador 1 de Glucose-Sódio , Inibidores do Transportador 2 de Sódio-Glicose , Glucosídeos/farmacocinética , Humanos , Compostos Benzidrílicos/farmacocinética , Compostos Benzidrílicos/urina , Transportador 1 de Glucose-Sódio/metabolismo , Inibidores do Transportador 2 de Sódio-Glicose/farmacocinética , Inibidores do Transportador 2 de Sódio-Glicose/farmacologia , Glucose/metabolismo , Masculino , Transportador 2 de Glucose-Sódio/metabolismo , Adulto , Hipoglicemiantes/farmacocinética , Hipoglicemiantes/farmacologia , Reabsorção Renal/efeitos dos fármacos , Rim/metabolismo , Glicosúria , Feminino , Pessoa de Meia-IdadeRESUMO
OBJECTIVE: We aimed to develop a new approach for identifying the localization of the seizure onset zone (SOZ) based on corticocortical evoked potentials (CCEPs) and to compare the connectivity patterns in patients with different clinical phenotypes. METHODS: Fifty patients who underwent stereoelectroencephalography and CCEP procedures were included. Logistic regression was used in the model, and six CCEP metrics were input as features: root mean square of the first peak (N1RMS) and second peak (N2RMS), peak latency, onset latency, width duration, and area. RESULTS: The area under the curve (AUC) for localizing the SOZ ranged from 0.88 to 0.93. The N1RMS values in the hippocampus sclerosis (HS) group were greater than that of the focal cortical dysplasia (FCD) IIa group (p < 0.001), independent of the distance between the recorded and stimulated sites. The sensitivity of localization was higher in the seizure-free group than in the non-seizure-free group (p = 0.036). CONCLUSIONS: This new method can be used to predict the SOZ localization in various focal epilepsy phenotypes. SIGNIFICANCE: This study proposed a machine-learning approach for localizing the SOZ. Moreover, we examined how clinical phenotypes impact large-scale abnormality of the epileptogenic networks.
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Eletroencefalografia , Epilepsias Parciais , Humanos , Eletroencefalografia/métodos , Epilepsias Parciais/diagnóstico , Potenciais Evocados/fisiologia , Técnicas Estereotáxicas , ConvulsõesRESUMO
Though burgeoning research manifests that cell competition, an essential selection and quality control mechanism for maintaining tissue or organ growth and homeostasis in multicellular organisms, is closely related to tumorigenesis and development, the mechanism of cell competition associated with tumor drug resistance remains elusive. In the study, we uncovered that oxaliplatin-resistant hepatocellular carcinoma (HCC) cells exhibit a pronounced competitive advantage against their sensitive counterparts, which is related to lipid takeover of resistant cells from sensitive cells. Of note, such lipid takeover is dependent on the existence of isocitrate dehydrogenase 1 (IDH1) in resistant HCC cells. Mechanistically, IDH1 activity is regulated by heat shock protein 90 alpha (HSP90α) through binding with each other, which orchestrates the expressions of lipid metabolic enzymes and lipid accumulation in resistant HCC cells. Our results suggest that HCC cell competition-driven chemoresistance can be regulated by HSP90α/IDH1-mediated lipid metabolism, which may serve as a promising target for overcoming drug resistance in HCC.
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Carcinoma Hepatocelular , Neoplasias Hepáticas , Humanos , Oxaliplatina/farmacologia , Carcinoma Hepatocelular/tratamento farmacológico , Carcinoma Hepatocelular/genética , Carcinoma Hepatocelular/metabolismo , Neoplasias Hepáticas/tratamento farmacológico , Neoplasias Hepáticas/genética , Neoplasias Hepáticas/metabolismo , Competição entre as Células , Lipídeos , Isocitrato Desidrogenase/genéticaRESUMO
BACKGROUND: The upper limits of normal (ULNs) for alanine aminotransferase (ALT) are different among international guidelines for chronic hepatitis B (CHB). We aimed to investigate the proportion of significant histological disease in Asian patients with CHB with detectable hepatitis B virus (HBV) DNA under diverse ALT ULNs. METHODS: Consecutive patients with CHB and detectable HBV DNA who underwent liver biopsy were retrospectively included from four tertiary hospitals. Above grade 2 inflammation and stage 2 fibrosis were defined as significant inflammation and significant fibrosis, respectively. Significant histological disease was defined as above grade 2 inflammation or stage 2 fibrosis. RESULTS: Among the 414 patients with detectable HBV DNA and normal ALT, the proportion of those with significant histological disease was lower (59.7%) according to the ULN for ALT at 30/19 U/L (male/female), while the corresponding proportions were 66.7% and 62.3% according to the ULNs of 40 U/L and 35/25 U/L (male/female), respectively. In patients with detectable HBV DNA and normal ALT levels without significant fibrosis, the proportions of significant inflammation were comparable among different ULNs of ALT at 40 U/L (30.7%), 35/25 U/L (27.3%) and 30/19 U/L (25.0%). The proportion of significant histological disease was significantly lower in patients with normal ALT for 2 determinations at least 6 months apart compared to patients with normal ALT once. CONCLUSIONS: Although a more stringent ALT ULN may reduce the risk of the presence of significant histological disease in patients with detectable HBV DNA, the rates of significant histological disease remain high. Persistently normal ALT levels are more important for excluding patients with CHB with a high probability of significant histological disease.
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DNA Viral , Hepatite B Crônica , Humanos , Feminino , Masculino , Alanina Transaminase , DNA Viral/genética , Estudos Retrospectivos , Inflamação , FibroseRESUMO
BACKGROUND: Neurofibromatosis type 1 (NF1) is a common inherited disorder characterized by cutaneous neurofibromas and other features. It is still a challenge in managing inoperable patients and the complex nature of the disease. Bibliometric analyses for cutaneous neurofibromas (cNF) could offer insights into impactful research and collaborations, guiding future efforts to improve patient care and outcomes. METHODS: We conducted a comprehensive literature search of the Web of Science Core Collection database for the period 2003-2022. Data processing and analysis were performed using bibliometric tools including VOSviewer, CiteSpace, and "Bibliometrix" package. Our analysis assessed the publication or collaboration of countries, institutions, authors, and journals, as well as the co-citation and burst of references and keywords. RESULTS: The analysis included 927 articles from 465 journals and 1402 institutions in 67 countries. Research on cNF has been increasing in recent years. The United States leads the field. Pierre Wolkenstein was the top author, while The University of Hamburg was the most productive institution. The American Journal of Medical Genetics Part A published the most articles in cNF. Co-citation analysis revealed major research topics and trends over time, showing growing interest in evaluating quality of life and genotype-phenotype correlation for cNF patients. Emerging topical MEK inhibitors show potential as a promising therapy. CONCLUSION: In conclusion, our bibliometric analysis of cNF research over the past two decades highlights the growing interest in this complex genetic disorder. Leading countries, authors, institutions, and journals have played significant roles in shaping the field. Notably, recent trends emphasize the importance of evaluating quality of life and genotype-phenotype correlations in cNF patients. Furthermore, the emergence of promising topical therapy marks an exciting development in the quest to improve patient care and outcomes for those affected by cNF, paving the way for future research and collaboration.
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Neurofibroma , Neoplasias Cutâneas , Humanos , Qualidade de Vida , Bibliometria , Bases de Dados FactuaisRESUMO
It is still limited that how the microalgal toxin okadaic acid (OA) affects the intestinal microbiota in marine fishes. In the present study, adult marine medaka Oryzias melastigma was exposed to the environmentally relevant concentration of OA (5 µg/L) for 10 days, and then recovered in fresh seawater for 10-days depuration. Analysis of taxonomic composition and diversity of the intestinal microbiota, as well as function prediction analysis and histology observation were carried out in this study. Functional prediction analysis indicated that OA potentially affected the development of colorectal cancer, protein and carbohydrate digestion and absorption functions, and development of neurodegenerative diseases like Parkinson's disease, which may be associated with changes in Proteobacteria and Firmicutes in marine medaka. Significant increases of C-reactive protein (CRP) and inducible nitric oxide synthase (iNOS) levels, as well as the changes of histology of intestinal tissue demonstrated that an intestinal inflammation was induced by OA exposure in marine medaka. This study showed that the environmental concentrations of OA could harm to the intestinal microbiota thus threatening the health of marine medaka, which hints that the chemical ecology of microalgal toxins should be paid attention to in future studies.
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Microbioma Gastrointestinal , Oryzias , Poluentes Químicos da Água , Animais , Oryzias/fisiologia , Ácido Okadáico , EcologiaRESUMO
Growing evidence has suggested that increased matrix stiffness can significantly strengthen the malignant characteristics of hepatocellular carcinoma (HCC) cells. However, whether and how increased matrix stiffness regulates the formation of invadopodia in HCC cells remain largely unknown. In the study, we developed different experimental systems in vitro and in vivo to explore the effects of matrix stiffness on the formation of invadopodia and its relevant molecular mechanism. Our results demonstrated that increased matrix stiffness remarkably augmented the migration and invasion abilities of HCC cells, upregulated the expressions of invadopodia-associated genes and enhanced the number of invadopodia. Two regulatory pathways contribute to matrix stiffness-driven invadopodia formation together in HCC cells, including direct triggering invadopodia formation through activating integrin ß1 or Piezo1/ FAK/Src/Arg/cortactin pathway, and indirect stimulating invadopodia formation through improving EGF production to activate EGFR/Src/Arg/cortactin pathway. Src was identified as the common hub molecule of two synergistic regulatory pathways. Simultaneously, activation of integrin ß1/RhoA/ROCK1/MLC2 and Piezo1/Ca2+/MLCK/MLC2 pathways mediate matrix stiffness-reinforced cell migration. This study uncovers a new mechanism by which mechanosensory pathway and biochemical signal pathway synergistically regulate the formation of invadopodia in HCC cells.
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Carcinoma Hepatocelular , Neoplasias Hepáticas , Podossomos , Humanos , Carcinoma Hepatocelular/genética , Carcinoma Hepatocelular/metabolismo , Cortactina/metabolismo , Podossomos/metabolismo , Neoplasias Hepáticas/genética , Neoplasias Hepáticas/metabolismo , Integrina beta1/metabolismo , Matriz Extracelular/metabolismo , Linhagem Celular Tumoral , Invasividade Neoplásica , Quinases Associadas a rho/metabolismoRESUMO
To reveal the exact changes of allopregnanolone-mediated γ-aminobutyric acid A receptor pathways and its specific therapeutic targets by Shuyu Capsule treating premenstrual depression, female Wistar rat models of premenstrual depression was established by Forced swimming test (FST). Behavioral tests, enzyme-linked immunosorbent assay (ELISA), interference knockdown adenovirus, and overexpressed vector adenovirus of GABAARδ, RT-qPCR, Western-Blot, and immunohistochemical detecting expressions were applied to identify the therapeutic targets. FST-based rat model indicated that Shuyu capsules alleviated typical premenstrual depression and may regulate alternations of 5α-reductase and 3α-steroid dehydrogenase, enhancing the metabolic pathway of progesterone to allopregnanolone, as well as targeting the GABAARδ subunit, thereby alleviating premenstrual depression of PMDD rat models.
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Pregnanolona , Receptores de GABA-A , Ratos , Feminino , Animais , Ratos Wistar , Pregnanolona/metabolismo , Pregnanolona/uso terapêutico , Hipocampo/metabolismo , Ácido gama-Aminobutírico , Redes e Vias MetabólicasRESUMO
Through the Chinese National Immunization Adverse Event Surveillance System (CNAEFIS), we collected reports of Adverse Event Following Immunization (AEFI) deaths in Shenyang from 2009 to 2021 with the aim of analyzing AEFI-related deaths and assessing the safety of vaccination. From 2009 to 2021, a total of 12 AEFI-related deaths were reported in Shenyang City, and autopsies were performed in 6 deaths. According to the assessment of the Expert Committee on Investigation and Diagnosis of AEFI 3 (25.0%) deaths were classified as severe vaccine reactions, 9 (75.0%) deaths were classified as coincidental events, and there were no immunization errors or psychological reactions. The overall estimated AEFI-related mortality rate was 0.12 per 100,000 vaccination doses. Spearman's rank correlation analysis showed no correlation between AEFI, severe vaccine reactions, and suspected vaccination-related deaths. Coincidental events are the most common type of death following vaccination, meaning that the risk of death following immunization is low, and ongoing AEFI surveillance and scientific causality assessment are essential to ensure the vaccine confidence. Detailed pre-vaccination health status questioning is also key to avoiding and reducing adverse events.
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Vacinação , Vacinas , Vacinação/efeitos adversos , Imunização/efeitos adversos , Vacinas/efeitos adversos , China/epidemiologia , Nível de Saúde , Sistemas de Notificação de Reações Adversas a MedicamentosRESUMO
This study aimed to develop a physiologically-based pharmacokinetic (PBPK) model to predict the maximum plasma concentration (Cmax) and trough concentration (Ctrough) at steady-state of olaparib (OLA) in Caucasian, Japanese and Chinese. Furthermore, the PBPK model was combined with mean and 95% confidence interval to predict optimal dosing regimens of OLA when co-administered with CYP3A4 modulators and administered to patients with hepatic/renal impairment. The dosing regimens were determined based on safety and efficacy PK threshold Cmax (< 12,500 ng/mL) and Ctrough (772-2500 ng/mL). The population PBPK model for OLA was successfully developed and validated, demonstrating good consistency with clinically observed data. The ratios of predicted to observed values for Cmax and Ctrough fell within the range of 0.5 to 2.0. When OLA was co-administered with a strong or moderate CYP3A4 inhibitor, the recommended dosing regimens should be reduced to 100 mg BID and 150 mg BID, respectively. Additionally, the PBPK model also suggested that OLA could be not recommended with a strong or moderate CYP3A4 inducer. For patients with moderate hepatic and renal impairment, the dosing regimens of OLA were recommended to be reduced to 200 mg BID and 150 mg BID, respectively. In cases of severe hepatic and renal impairment, the PBPK model suggested a dosing regimen of 100 mg BID for OLA. Overall, this present PBPK model can determine the optimal dosing regimens for various clinical scenarios involving OLA.
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Hepatopatias , Insuficiência Renal , Humanos , Citocromo P-450 CYP3A , RimRESUMO
To investigate the effect of different metastatic patterns of stage III high-grade serous ovarian cancer on the patient prognosis. The clinical data of 134 patients with Stage III, high-grade serous ovarian cancer diagnosed in The Affiliated Hospital of Qingdao University from January 2018 to April 2020 were retrospectively collected, and the patients were grouped according to metastasis mode. Patients with simple lymph node metastasis (SLNM) were included in the SLNM group, and patients with simple abdominal implantation alone and patients with abdominal metastasis combined with lymph node metastasis were all in the abdominal metastasis (AM) group. The prognosis of the two groups was analyzed. Of the 134 enrolled patients, complete datasets from 128 were successfully collected. There were 20 cases of SLNM (15.63%) and 108 cases of AM (84.37%). Initial CA125, initial HE4, and whether neoadjuvant chemotherapy was used were compared between the two groups (P < 0.05). According to the chemotherapy results, patients was divided into two groups: chemotherapy remission and uncontrolled, including 111 patients with chemotherapy remission and 17 patients with uncontrolled chemotherapy. According to the criteria of relapse after complete completion of chemotherapy and clinical remission, 91 cases relapsed, 20 cases did not relapse, of which 78 cases were platinum-sensitive, and 13 were platinum-resistant relapses. There were 4 recurrence cases in SLNM group (4.40%) and 87 recurrence cases (95.60%) in AM group (P < 0.05). The recurrence sites of 91 patients were analyzed, including 52 cases (57.14%) in the peritoneum, 11 cases (12.09%) in distant regions, 9 cases (9.89%) in lymph nodes, 19 cases (20.88%) in the peritoneum and lymph nodes. Significant differences were noted in the two groups' peritoneum, lymph node, and distance (P < 0.05). The two groups had significant differences in progression-free survival, overall survival, and 3-year survival (all P < 0.05). Initial HE4 levels, chemotherapy sensitivity, and SLNM are independent prognostic factors for Stage III high-grade serous ovarian cancer patients. Initial HE4 level < 233.7 pmol/l and chemotherapy sensitivity were protective factors, indicating a good prognosis. Patients in the SLNM group had lower initial CA125 and HE4 levels and higher survival rates. Initial HE4 levels and chemotherapy sensitivity are independent factors affecting prognosis in Stage III high-grade serous ovarian cancer patients.
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This study aimed to explore the safety and effectiveness of rehabilitation treatment for stroke patients with muscular call vein thrombosis (MCVT) in the lower limbs. A total of 173 patients were recruited with stroke complicated by MCVT, including 130 who received rehabilitation training and 43 who did not receive rehabilitation training. The t test and chi-square test were used to analyze the basic data of the 2 groups. There were no significant differences in the Fugl-Meyer Assessment scores between 2 groups at the beginning of recruitment (P = .149). There was a significant difference in the Fugl-Meyer Assessment scores of the lower limbs in patients with MCVT after 3 weeks of rehabilitation treatment (P < .001), and there was a significant difference in the rate of MCVT recanalization and extension between the 2 groups (χ2 = 11.646, P = 0001). Combined with anticoagulation therapy, rehabilitation training did not increase the thrombosis progression of MCVT and was effective in the recovery of lower limb motor function in stroke patients.
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Reabilitação do Acidente Vascular Cerebral , Acidente Vascular Cerebral , Trombose Venosa , Humanos , Extremidade Inferior , Trombose Venosa/complicações , Resultado do Tratamento , Recuperação de Função Fisiológica , Extremidade SuperiorRESUMO
Background: Hypertension is a major risk factor for the global burden of disease, and nutrition is associated with an increased risk of mortality from multiple diseases. Few studies have explored the association of nutritional risk with all-cause mortality and cardiovascular mortality in hypertension, and our study aims to fill this knowledge gap. Method: We included data from the National Health and Nutrition Examination Survey (NHANES) from 1999 to 2016 on a total of 10,037 elderly patients with hypertension. The nutritional status was evaluated using the Geriatric Nutrition Risk Index (GNRI). Kaplan-Meier survival analysis was performed to analyze the survival rates of different nutritional risk groups. COX proportional risk regression models were used to analyze the predictive effect of GNRI on all-cause mortality and cardiovascular mortality in hypertensive patients. Restricted cubic splines (RCS) were used to explore the nonlinear relationship between GNRI and mortality. Result: The mean age of the hypertensive patients was 70.7 years. A total of 4255 (42.3%) all-cause mortality and 1207 (17.2%) cardiovascular mortality occurred during a median follow-up period of 106 months. Kaplan-Meier showed a more significant reduction in survival for the moderate to severe malnutrition risk of GNRI. The adjusted COX proportional hazards model showed that the hazard ratios for all-cause mortality and cardiovascular mortality in the moderate to severe malnutrition risk group for GNRI were 2.112 (95% CI, 1.377,3.240) and 2.604 (95% CI, 1.603,4.229), respectively. The RCS showed that increased GNRI was associated with a reduced risk of all-cause mortality and cardiovascular mortality risk reduction. Conclusion: Malnutrition exposure assessed by GNRI effectively predicts the risk of all-cause mortality and cardiovascular mortality in the elderly with hypertension.
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BACKGROUND: Hepatocellular carcinoma (HCC) is a malignancy with limited treatment options and poor prognosis. Macrophages are enriched in the HCC microenvironment and have a significant impact on disease progression and therapy efficacy. We aim to identify critical macrophages subsets involved in HCC development. METHODS: Macrophage-specific marker genes were identified through single-cell RNA sequencing analyses. The clinical significance of macrophages with palmitoyl-protein thioesterase 1 (PPT1) positive was investigated in 169 patients with HCC from Zhongshan Hospital using immunohistochemistry and immunofluorescence. The immune microenvironment of HCC and the functional phenotype of PPT1+ macrophages were explored using cytometry by time-of-flight (CyTOF) and RNA sequencing. RESULTS: Single-cell RNA sequencing analyses revealed that PPT1 was predominantly expressed in macrophages in HCC. Intratumoral PPT1+ macrophages abundance was associated with inferior survival durations of patients and an independent risk factor of prognosis for HCC. High throughput analyses of immune infiltrates showed that PPT1+ macrophage-enriched HCCs were characterized by high infiltration of CD8+ T cells with increased programmed death-1 (PD-1) expression. PPT1+ macrophages exhibited higher galectin-9, CD172a, and CCR2 levels but lower CD80 and CCR7 levels than PPT1- macrophages. Pharmacological inhibition of PPT1 by DC661 suppressed mitogen-activated protein kinase (MAPK) pathway activity but activated nuclear factor kappa B (NF-κB) pathway in macrophages. In addition, DC661 enhanced the therapeutic efficacy of anti-PD-1 antibody in the HCC mouse model. CONCLUSIONS: PPT1 is mainly expressed in macrophages in HCC and promotes immunosuppressive transformation of macrophages and tumor microenvironment. PPT1+ macrophage infiltration is associated with poor prognosis of patients with HCC. Targeting PPT1 may potentiate the efficacy of immunotherapy for HCC.
Assuntos
Carcinoma Hepatocelular , Neoplasias Hepáticas , Animais , Camundongos , Carcinoma Hepatocelular/terapia , Linfócitos T CD8-Positivos , Neoplasias Hepáticas/terapia , Imunoterapia , Imunossupressores , Microambiente TumoralRESUMO
BACKGROUND: Saccadic eye movement (SEM) has been considered a non-invasive potential biomarker for the diagnosis of depression in recent years, but its application is not yet mature. In this study, we used eye-tracking technology to identify the eye movements of patients with depression to develop a new method for objectively identifying depression. METHODS: Thirty-six patients with depression as the depression group, while thirty-six matched healthy individuals as the control group were recruited and completed eye movement tests, including two tasks: the prosaccade task and the antisaccade task. iViewX RED 500 eye-tracking instruments from SMI were used to collect eye movement data for both groups. RESULTS: In the prosaccade task, there was no difference between the depression and control groups(t = 0.019ï¼ P > 0.05). In general, with increasing angle, both groups showed significantly higher peak velocity (F = 81.72ï¼ P < 0.0001), higher mean velocity (F = 32.83, P = 0.000), and greater SEM amplitude (F = 24.23, P < 0.0001). In the antisaccade task, there were significant differences in correct rate (t = 3.219, P = 0.002) and mean velocity (F = 3.253ï¼ P < 0.05) between the depression group and the control group. In the anti-effect analysis, there were significant differences in correct rate (F = 67.44, P < 0.0001) and accuracy (F = 79.02, P < 0.0001) between the depression group and the control group. Both groups showed longer latency and worse correct rate and precision in the antisaccade task compared with the prosaccade task. CONCLUSION: Patients with depression showed different eye movement features, which could be potential biomarkers for clinical identification. Further studies must validate these results with larger sample sizes and more clinical populations.