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1.
Int Urol Nephrol ; 2024 Apr 20.
Artigo em Inglês | MEDLINE | ID: mdl-38642210

RESUMO

PURPOSE: The present study aims to explore the effects of tacrolimus on proteinuria in patients with idiopathic membranous nephropathy (IMN) and recommend an appropriate dosage schedule via machine learning method. METHODS: The Emax model was constructed to analyze the effects of tacrolimus on proteinuria in patients with IMN. Data were mined from published literature and machine learning was built up with Emax model, among which the efficacy indicator was proteinuria change rates from baseline. 463 IMN patients were included for modeling, and tacrolimus therapeutic window concentrations were 4-10 ng/ml. RESULTS: In machine learning model, the Emax from tacrolimus effecting proteinuria in IMN patients was -72.7%, the ET50 was 0.43 months, and the time to achieving 25% Emax, 50% Emax, 75% Emax, and 80% (plateau) Emax of tacrolimus on proteinuria in patients with IMN were 0.15, 0.43, 1.29, and 1.72 months, respectively. CONCLUSION: For achieving better therapeutic effects from tacrolimus on proteinuria in patients with IMN, tacrolimus concentration range need to be maintained at 4-10 ng/ml for at least 1.72 months.

2.
Curr Pharm Des ; 2024 Apr 18.
Artigo em Inglês | MEDLINE | ID: mdl-38639271

RESUMO

OBJECTIVES: Cyclosporin has been used for the treatment of pediatric refractory nephrotic syndrome (PRNS). However, the narrow therapeutic window and large pharmacokinetic variability make it difficult to individualize cyclosporin administration. Meanwhile, spironolactone has been reported to affect cyclosporin metabolism in PRNS patients. This study aims to explore the initial dosage optimization of cyclosporin in PRNS based on the impact of spironolactone co-administration. METHODS: Monte Carlo simulation based on a previously established cyclosporin population pharmacokinetic model for PRNS was used to design cyclosporin dosing regimen. RESULTS: In this study, the probability of drug concentration reaching the target and the convenience of times of administration were considered comprehensively. The optimal administration regimen in PRNS without spironolactone was 6, 5, 4 and 3 mg/kg cyclosporin split into two doses for the body weight of 5-8, 8-18, 18-46 and 46-70 kg, respectively. The optimal administration regimen in PRNS with spironolactone was 4, 3, 2 mg/kg cyclosporin split into two doses for body weight of 5-14, 14-65, and 65-70 kg, respectively. CONCLUSION: The cyclosporin dosing regimen for PRNS based on Monte Carlo simulation was systematically developed and the initial dosage optimization of cyclosporin in PRNS was recommended for the first time.

3.
BMC Cardiovasc Disord ; 24(1): 155, 2024 Mar 13.
Artigo em Inglês | MEDLINE | ID: mdl-38481127

RESUMO

BACKGROUND: Hyperuricemia and low level of high-density lipoprotein cholesterol (HDL-C) are both risk factors for coronary artery disease (CAD). The uric acid to HDL-C ratio (UHR) has recently been identified as a new inflammatory and metabolic biomarker. However, the relationship between the UHR and coronary culprit plaques has not been fully investigated in patients with acute coronary syndrome (ACS). METHODS: A total of 346 patients with ACS were enrolled in this study. Culprit lesion characteristics were assessed by optical coherence tomography (OCT). Logistic regression and linear correlation analyses were performed to assess the association between the UHR and culprit plaques. The predictive value of the UHR was investigated by receiver operating characteristic (ROC) curve analysis. RESULTS: The percentages of typical culprit plaques, including ruptures, erosions and thrombi, were greater in the high-UHR subgroup than those in the low-UHR subgroup. A positive relationship was also found between the UHR and diameter stenosis (r = 0.160, P = 0.003) and between the UHR and area stenosis (r = 0.145, P = 0.007). The UHR was found to be independently associated with plaque rupture, erosion and thrombus. Furthermore, ROC analysis suggested that the UHR had a better predictive value than low-density lipoprotein cholesterol. CONCLUSIONS: An elevated UHR level was independently related to the occurrence rate of culprit plaques. The UHR is a simple and easily acquired parameter for detecting culprit plaques in patients with ACS.


Assuntos
Síndrome Coronariana Aguda , Placa Aterosclerótica , Humanos , Síndrome Coronariana Aguda/diagnóstico por imagem , Ácido Úrico , HDL-Colesterol , Constrição Patológica , Angiografia Coronária/métodos , Placa Aterosclerótica/patologia , Tomografia de Coerência Óptica/métodos , Vasos Coronários/patologia
4.
J Alzheimers Dis Rep ; 8(1): 387-397, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38549635

RESUMO

Background: The development and popularization of the Internet provides an important opportunity to advance national strategies for healthy aging, particularly the impact of the Internet on cognitive function in middle-aged and older adults. Objective: This study aimed to quantify the impact of Internet use on the cognitive health of middle-aged and older adults (aged≥45 years). Methods: We used data from the Chinese Family Panel Study (CFPS) survey, tested the robustness of the baseline findings by variable substitution and instrumental variables methods, and analyzed heterogeneity. Subsequently, five purposes of Internet use that affect cognitive function were analyzed in depth. Results: Internet use may improve cognitive function in middle-aged and older adults. The effect of Internet use on cognitive function was more pronounced in the lower age group (45-59 years), among males, in rural areas, and among middle-aged and older adults with higher levels of education. Cognitive functioning of middle-aged and older adults varied according to how often they used the Internet for entertainment, socialization, study, work, and business activities. Conclusions: The use of the Internet may be considered a practical non-pharmacological intervention to slow cognitive decline in middle-aged and older adults.

5.
Zhongguo Gu Shang ; 37(2): 119-23, 2024 Feb 25.
Artigo em Chinês | MEDLINE | ID: mdl-38425060

RESUMO

OBJECTIVE: To investigate the preliminary clinical effect of closed reduction and cannulated nail internal fixation for femoral neck fracture assisted by robot navigation and positioning system. METHODS: From July 2019 to January 2020, 16 cases of femoral neck fracture (navigation group) were treated with closed reduction and internal fixation guided by robot system, including 7 males and 9 females, aged 25 to 72 years old with an average of (53.61±5.45) years old;Garden classification of fracture:3 cases of typeⅠ, 3 cases of typeⅡ, 8 cases of type Ⅲ, 2 cases of type Ⅳ. Non navigation group (control group):20 cases of femoral neck fracture were treated with closed reduction and hollow nail internal fixation, 8 males and 12 females, aged 46 to 70 years old with an average of (55.23±4.64) years old;Garden typeⅠin 2 cases, typeⅡin 4 cases, type Ⅲ in 11 cases, type Ⅳ in 3 cases. The operation time, fluoroscopy times, guide needle drilling times, screw adjustment times, intraoperative bleeding volume and other indicators of two groups were evaluated. RESULTS: Both groups were followed up for 12 to 18 months with an average of (15.6±2.8) months. The fractures of both groups were healed without delayed union and nonunion. There was no significant difference in healing time between two groups(P=0.782). There was no significant difference in Harris scores between two groups at the last follow-up(P=0.813). There was no significant difference in operation time between two groups(P>0.05). There were significant differences between two groups in fluoroscopy times, guide needle drilling times, hollow screw replacement times, and intraoperative bleeding volume(P<0.05). CONCLUSION: Closed reduction and hollow screw internal fixation assisted by robot navigation system for femoral neck fracture has the advantages of minimally invasive operation, precise screw placement, and reduction of X-ray radiation damage during operation.


Assuntos
Fraturas do Colo Femoral , Ortopedia , Robótica , Masculino , Feminino , Humanos , Adulto , Pessoa de Meia-Idade , Idoso , Resultado do Tratamento , Fraturas do Colo Femoral/cirurgia , Parafusos Ósseos , Fixação Interna de Fraturas , Consolidação da Fratura , Estudos Retrospectivos
6.
Eur J Pharm Biopharm ; 197: 114218, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38367759

RESUMO

Myocardial ischemia/reperfusion (MI/R) injury is the primary cause of postischemicheartfailure. The increased expression of Thioredoxin-interacting protein (TXNIP) has been implicated in MI/R injury, although the detailed mechanism remains incompletely understood. In the present study, we observed the up-regulation of the m6A mRNA methylation complex component Wilms' tumor 1-associating protein (WTAP) in MI/R mice, which led to the m6A modification of TXNIP mRNA and an increase in mRNA abundance. Knock-down of WTAP resulted in a significant reduction in the m6A level of TXNIP mRNA and down-regulated TXNIP expression. Moreover, exosomes engineered with ischemic myocardium-targeting peptide (IMTP) were able to deliver WTAP siRNA into ischemic myocardial tissues, resulting in a specific gene knockdown and myocardial protection. In summary, our findings demonstrate that the WTAP-TXNIP regulatory axis plays a significant role in postischemicheartfailure, and the use of engineered exosomes targeting the ischemic heart shows promise as a strategy for siRNA therapy to protect the heart from injury.


Assuntos
Exossomos , Traumatismo por Reperfusão Miocárdica , Camundongos , Animais , Traumatismo por Reperfusão Miocárdica/genética , Traumatismo por Reperfusão Miocárdica/terapia , Traumatismo por Reperfusão Miocárdica/metabolismo , RNA Interferente Pequeno/metabolismo , Exossomos/genética , Exossomos/metabolismo , Proteínas de Ciclo Celular/genética , Proteínas de Ciclo Celular/metabolismo , Miocárdio/metabolismo , RNA Mensageiro/metabolismo
7.
Chem Commun (Camb) ; 60(21): 2914-2917, 2024 Mar 07.
Artigo em Inglês | MEDLINE | ID: mdl-38372145

RESUMO

Nickel-based electrocatalysts for water oxidation suffer from low activity and poor stability. In this work, 0.015 mg cm-2 TiO2 nanosheets anchored on Ni foam addressed these problems after electrochemical activation. In situ investigations, including Raman spectra, corroborated the enhanced generation of highly active Ni(III)-O-O species on Ni foam in the presence of trace TiO2.

8.
MAbs ; 16(1): 2311991, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38334129

RESUMO

Off-target biodistribution of biologics bears important toxicological consequences. Antibody fragments intended for use as vectors of cytotoxic payloads (e.g. antibody-drug conjugates, radiotherapy) can accumulate at clearance organs like kidneys and liver, where they can cause dose-limiting toxicities. Renal and hepatic uptakes are known to be affected by protein electrostatics, which promote protein internalization through pinocytosis. Using minibodies as a model of an antibody fragment lacking FcRn recycling, we compared the biodistributions of leads with different degrees of accumulation at the kidney and liver. We identified a positive electrostatic patch highly conserved in a germline family very commonly used in the humanization of approved biologics. Neutralization of this patch led to a drastic reduction in the kidney uptake, leading to a biodistribution more favorable to the delivery of highly cytotoxic payloads. Next, we conducted a high throughput study of the electrostatic properties for all combinations of VH and VL germlines. This analysis shows how different VH/VL combinations exhibit varying tendencies to create electrostatic patches, resulting in Fv variants with different isoelectric points. Our work emphasizes the importance of carefully selecting germlines for humanization with optimal electrostatic properties in order to control the unspecific tissue uptake of low molecular weight biologics.


Assuntos
Produtos Biológicos , Humanos , Distribuição Tecidual , Eletricidade Estática , Rim , Fragmentos de Imunoglobulinas , Células Germinativas
9.
Cancer Lett ; 585: 216656, 2024 Mar 31.
Artigo em Inglês | MEDLINE | ID: mdl-38266804

RESUMO

Hormone receptor-positive breast cancer (HR+ BC) is known to be relatively insensitive to chemotherapy, and since chemotherapy has remained the major neoadjuvant therapy for HR+ BC, the undetermined mechanism of chemoresistance and how chemotherapy reshapes the immune microenvironment need to be explored by high-throughput technology. By using single-cell RNA sequencing and multiplexed immunofluorescence staining analysis of HR+ BC samples (paired pre- and post-neoadjuvant chemotherapy (NAC)), the levels of previously unrecognized immune cell subsets, including CD8+ T cells with pronounced expression of T-cell development (LMNA) and cytotoxicity (FGFBP2) markers, CD4+ T cells characterized by proliferation marker (ATP1B3) expression and macrophages characterized by CD52 expression, were found to be increased post-NAC, which were predictive of chemosensitivity and their antitumor function was also validated with in vitro experiments. In terms of immune checkpoint expression of CD8+ T cells, we found their changes were inconsistent post-NAC, that LAG3, VSIR were decreased, and PDCD1, HAVCR2, CTLA4, KLRC1 and BTLA were increased. In addition, we have identified novel genomic and transcriptional patterns of chemoresistant cancer cells, both innate and acquired, and have confirmed their prognostic value with TCGA cohorts. By shedding light on the ecosystem of HR+ BC reshaped by chemotherapy, our results uncover valuable candidates for predicting chemosensitivity and overcoming chemoresistance in HR+ BC.


Assuntos
Neoplasias da Mama , Humanos , Feminino , Neoplasias da Mama/tratamento farmacológico , Neoplasias da Mama/genética , Neoplasias da Mama/patologia , Terapia Neoadjuvante/métodos , Linfócitos T CD8-Positivos/metabolismo , Ecossistema , Análise de Sequência de RNA , Microambiente Tumoral , ATPase Trocadora de Sódio-Potássio/uso terapêutico
10.
Theranostics ; 14(3): 911-923, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38250045

RESUMO

Rationale: Novel immune-activating therapeutics for the treatment of glioblastoma multiforme (GBM) have shown potential for tumor regression and increased survival over standard therapies. However, immunotherapy efficacy remains inconsistent with response assessment being complicated by early treatment-induced apparent radiological tumor progression and slow downstream effects. This inability to determine early immunotherapeutic benefit results in a drastically decreased window for alternative, and potentially more effective, treatment options. The objective of this study is to evaluate the effects of combination immunotherapy on early CD8+ cell infiltration and its association with long term response in orthotopic syngeneic glioblastoma models. Methods: Luciferase positive GBM orthotopic mouse models (GSC005-luc) were imaged via [89Zr]-CD8 positron emission tomography (PET) one week following treatment with saline, anti-PD1, M002 oncolytic herpes simplex virus (oHSV) or combination immunotherapy. Subsequently, brains were excised, imaged via [89Zr]-CD8 ImmunoPET and evaluated though autoradiography and histology for H&E and CD8 immunohistochemistry. Longitudinal immunotherapeutic effects were evaluated through [89Zr]-CD8 PET imaging one- and three-weeks following treatment, with changes in tumor volume monitored on a three-day basis via bioluminescence imaging (BLI). Response classification was then performed based on long-term BLI signal changes. Statistical analysis was performed between groups using one-way ANOVA and two-sided unpaired T-test, with p < 0.05 considered significant. Correlations between imaging and biological validation were assessed via Pearson's correlation test. Results: [89Zr]-CD8 PET standardized uptake value (SUV) quantification was correlated with ex vivo SUV quantification (r = 0.61, p < 0.01), autoradiography (r = 0.46, p < 0.01), and IHC tumor CD8+ cell density (r = 0.55, p < 0.01). Classification of therapeutic responders, via bioluminescence signal, revealed a more homogeneous CD8+ immune cell distribution in responders (p < 0.05) one-week following immunotherapy. Conclusions: Assessment of early CD8+ cell infiltration and distribution in the tumor microenvironment provides potential imaging metrics for the characterization of oHSV and checkpoint blockade immunotherapy response in GBM. The combination therapies showed enhanced efficacy compared to single agent immunotherapies. Further development of immune-focused imaging methods can provide clinically relevant metrics associated with immune cell localization that can inform immunotherapeutic efficacy and subsequent treatment response in GBM patients.


Assuntos
Glioblastoma , Animais , Camundongos , Humanos , Glioblastoma/diagnóstico por imagem , Glioblastoma/terapia , Tomografia Computadorizada por Raios X , Imunoterapia , Tomografia por Emissão de Pósitrons , Linfócitos T CD8-Positivos , Microambiente Tumoral
11.
Comput Biol Med ; 168: 107776, 2024 01.
Artigo em Inglês | MEDLINE | ID: mdl-38056214

RESUMO

BACKGROUND: Amyotrophic lateral sclerosis (ALS) is a progressive and lethal neurodegenerative disease. Several studies have suggested the involvement of cuproptosis in its pathogenesis. In this research, we intend to explore the cuproptosis-related molecular clusters in ALS and develop a novel cuproptosis-related genes prediction model. METHODS: The peripheral blood gene expression data was downloaded from the Gene Expression Omnibus (GEO) online database. Based on the GSE112681 dataset, we investigated the critical cuproptosis-related genes (CuRGs) and pathological clustering of ALS. The immune microenvironment features of the peripheral blood in ALS patients were also examined using the CIBERSORT algorithm. Cluster-specific hub genes were determined by the WGCNA. The most accurate prediction model was selected by comparing the performance of four machine learning techniques. ROC curves and two independent datasets were applied to validate the prediction accuracy. The available compounds targeting these hub genes were filtered to investigate their efficacy in treating ALS. RESULTS: We successfully determined four critical cuproptosis-related genes and two pathological clusters with various immune profiles and biological characteristics in ALS. Functional analysis showed that genes in Cluster1 were primarily enriched in pathways closely associated with immunity. The Support Vector Machine (SVM) model exhibited the best discrimination properties with a large area under the curve (AUC = 0.862). Five hub prediction genes (BAP1, SMG1, BCLAF1, DHX15, EIF4G2) were selected to establish a nomogram model, suggesting significant risk prediction potential for ALS. The accuracy of this model in predicting ALS incidence was also demonstrated through calibration curves, nomograms, and decision curve analysis. Finally, three drugs targeting BAP1 were determined through drug-gene interactions. CONCLUSION: This study elucidated the complex associations between cuproptosis and ALS and constructed a satisfactory predictive model to explore the pathological characteristics of different clusters in ALS patients.


Assuntos
Esclerose Lateral Amiotrófica , Doenças Neurodegenerativas , Humanos , Esclerose Lateral Amiotrófica/genética , Algoritmos , Calibragem , Análise por Conglomerados , Apoptose
12.
Curr Pharm Des ; 29(37): 2996-3004, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-38062660

RESUMO

OBJECTIVES: Cyclosporin is one of the therapeutic regimens for hemophagocytic lymphohistiocytosis (HLH); however, the optimal dosage of cyclosporine in children with HLH is unknown. It has been found that piperacillin-tazobactam affects the cyclosporine pharmacokinetic process in pediatric HLH patients. Thus, the purpose of the present study was to recommend cyclosporin dosage for pediatric HLH with and without piperacillin- tazobactam. METHODS: A previously established cyclosporine population pharmacokinetic model for pediatric HLH patients has been used in this study to recommend optimal dosage based on Monte Carlo simulation. The pediatric HLH patients have been included in eight weight groups (5, 10, 20, 30, 40, 50, 60, 70 kg) for sixteen dosages (1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16 mg/kg), split into one dose or two doses. RESULTS: The optimal cyclosporin dosages for children having HLH without piperacillin-tazobactam have been found to be 15, 13, 12, 11, 10, and 9 mg/kg, split into two doses for weights of 5-7, 7-10, 10-20, 20-28, 28-45, and 45-70 kg, respectively. For children with HLH, optimal cyclosporin dosages with piperacillin-tazobactam have been found to be 8 and 7 mg/kg, split into two doses for weights of 5-20 and 20-70 kg, respectively. CONCLUSION: It is the first time that the cyclosporin dosage regimens for HLH in children have been developed based on Monte Carlo simulation, and the initial dosage optimizations of cyclosporine in pediatric HLH patients have been recommended.


Assuntos
Ciclosporina , Linfo-Histiocitose Hemofagocítica , Criança , Humanos , Ciclosporina/uso terapêutico , Linfo-Histiocitose Hemofagocítica/tratamento farmacológico , Combinação Piperacilina e Tazobactam/uso terapêutico
13.
Int J Ophthalmol ; 16(11): 1867-1875, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-38028524

RESUMO

AIM: To develop the 17-item Asthenopia Survey Questionnaire (ASQ)-17 by Rasch analysis, and to generate a predictiveness score. METHODS: Totally 739 participants were recruited and 680 were involved in the result analysis in this prospective, cross-sectional study. Three rounds of Rasch analysis were used to analyze the psychometric characteristics of items and options. RESULTS: Phase 1 assessed the original ASQ-19, adjusted the item scoring mode to a four-point Likert response rating scale and combined the 18th and 19th items into a new item. Phase 2 deleted the 11th item. Phases 3 and 4 assessed the new ASQ-17. All the evaluation indexes of ASQ-17 were acceptable. The Infit and Outfit MnSq values of items were 0.67-1.48, the variance explained by the principal component and the unexplained variance explained by the first contrast were 53.90%-59.40% and 1.50-1.80 in three dimensions. The curve peaks of scores in each dimension were separated and in the same order. The PSR and PSI values were 2.80 and 0.89, respectively. The mean scores of dimensions A (9.5±4.1 vs 3.5±3.2), B (7.3±3.3 vs 2.5±2.7), C (4.3±2.2 vs 1.4±2.0) and total (21.1±8.1 vs 7.4±7.0) in asthenopia participants were significantly higher than those without asthenopia (all P<0.001). The area under the curve in two groups was 0.899 (P<0.001). Youden's index was up to the maximum value of 0.784 when the cut-off value was 12.5. CONCLUSION: ASQ-17 has stronger option sorting and suitability than ASQ-19. It is an effective assessment tool for asthenopia with an optimal cut-off threshold value of 12.5, which is suitable for diagnosis and curative effect evaluation.

14.
Zhongguo Zhong Yao Za Zhi ; 48(15): 4115-4123, 2023 Aug.
Artigo em Chinês | MEDLINE | ID: mdl-37802779

RESUMO

Eight heterocyclic compounds and twelve phenolic glycosides were separated from the water extract of Dendrobium officinale flowers through chromatographic techniques, such as Diaion HP-20 macroporous adsorption resin column chromatography(CC), silica gel CC, ODS CC, Sephadex LH-20 CC, and preparative high performance liquid chromatography(PHPLC). According to the spectroscopic analyses(MS, ~1H-NMR, and ~(13)C-NMR) and optical rotation data, the compounds were identified as dendrofurfural A(1), 2'-deoxyadenosine(2), 4-[2-formyl-5-(hydroxymethyl)-1H-pyrrol-1-yl] butanoic acid(3), 4-[2-formyl-5-(methoxymethyl)-1H-pyrrol-1-yl] butanoic acid(4), 1-(2-hydroxyethyl)-5-(methoxymethyl)-1H-pyrrole-2-carbaldehyde(5), 5-(methoxymethyl)-1H-pyrrole-2-carbaldehyde(6), methyl 5-(hydroxymethyl)-furan-2-carboxylate(7),(S)-5-hydroxymethyl-5H-furan-2-one(8), 2-methoxyphenyl-1-O-ß-D-glucopyranoside(9), arbutin(10), isotachioside(11), 2,6-dimethoxy-4-hydroxyphenol-1-O-ß-D-glucopyranoside(12), orcinol glucoside(13), tachioside(14), gastrodin(15), 4-O-ß-D-glucopyranosylvanillyl alcohol(16), 2,6-dimethoxy-4-hydroxymethylphenol-1-O-ß-D-glucopyranoside(17), icariside D_2(18), 4-formylphenyl-ß-D-glucopyranoside(19), and vanillin-4-O-ß-D-glucopyranoside(20). Among them, compound 1 is a new furfural benzyl alcohol condensate, with the skeleton first found in Dendrobium. Compounds 2-9, 11, 13, and 19 are reported from Dendrobium for the first time, and compounds 14 and 18 are reported for the first time from D. officinale. Compounds 11 and 14 showed moderate DPPH radical scavenging capacity, and compounds 11-14 demonstrated potent ABTS radical scavenging capacity, possessing antioxidant activity.


Assuntos
Dendrobium , Compostos Heterocíclicos , Ácido Butírico , Glicosídeos/análise , Fenóis/análise , Flores/química
15.
Opt Express ; 31(20): 32935-32952, 2023 Sep 25.
Artigo em Inglês | MEDLINE | ID: mdl-37859085

RESUMO

Quantum key distribution (QKD) with continuous variable (CV) is an effective method for achieving the high key rate, but is also limited to a short transmission distance. To overcome this limitation, some solutions have been proposed, including non-Gaussian operations, such as photon addition and photon subtraction using ideal photon source and number-resolving detection. Here we consider the effect of non-Gaussian operation for realistic photon source and ideal on-off photon detection. In the realistic case, it is shown that the performance of CVQKD can not be improved by both photon-subtraction/addition on the right side before the entangled source reaches the channel and photon-subtraction on the left side preceding the entangled source to the sender Alice before performing heterodyne detection, but be enhanced by the photon addition on the left side in a long distance case. These results may provide a useful reference for quantum information with continuous variable.

16.
Clin Cancer Res ; 29(24): 5227-5243, 2023 12 15.
Artigo em Inglês | MEDLINE | ID: mdl-37831062

RESUMO

PURPOSE: Axillary lymph nodes (LN) are the primary and dominant metastatic sites in breast cancer. However, the interaction between tumor cells and immune cells within metastatic LNs (mLN) remains poorly understood. In our study, we explored the effect of CD24hiCD27+ regulatory B cells (Breg) within mLNs on orchestrating drug resistance of breast cancer cells. EXPERIMENTAL DESIGN: We collected mLN samples from patients with breast cancer who had received standard neoadjuvant therapy (NAT) and analyzed the spatial features of CD24hiCD27+ Bregs through multicolor immunofluorescence staining. The effect of CD24hiCD27+ Bregs on drug resistance of breast cancer cells was evaluated via in vitro experiments. A mouse model with mLNs was used to evaluate the strategies with blocking the interactions between Bregs and breast cancer for improving tumor regression within mLNs. RESULTS: In patients with breast cancer who had received NAT, there is a close spatial correlation between activated CD24hiCD27+ Bregs and residual tumor cells within mLNs. Mechanistically, CD24hiCD27+ Bregs greatly enhance the acquisition of multidrug resistance and stem-like features of breast cancer cells by secreting IL6 and TNFα. More importantly, breast cancer cells further promote the activation of CD24hiCD27+ Bregs via CD40L-dependent and PD-L1-dependent proximal signals, forming a positive feedback pattern. PD-L1 blockade significantly attenuates the drug resistance of breast cancer cells induced by CD24hiCD27+ Bregs, and addition of anti-PD-L1 antibody to chemotherapy improves tumor cell remission in mLNs. CONCLUSIONS: Our study reveals the pivotal role of CD24hiCD27+ Bregs in promoting drug resistance by interacting with breast cancer cells in mLNs, providing novel evidence for an improved strategy of chemoimmunotherapy combination for patients with breast cancer with mLNs.


Assuntos
Linfócitos B Reguladores , Neoplasias da Mama , Animais , Camundongos , Humanos , Feminino , Neoplasias da Mama/patologia , Antígeno B7-H1 , Linfócitos B Reguladores/patologia , Linfonodos/patologia , Resistência a Múltiplos Medicamentos
17.
Front Oncol ; 13: 1259508, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37829332

RESUMO

Background: Spinal meningioma is a common intraspinal tumor, which mainly occurs in the thoracic spine. Ossified meningioma (OSM) is an extremely rare histological variant. Our article reports a rare patient with dorsal complete OSM and reviews this subject. Case presentation: A 68-year-old woman presented with a one-year history of progressive weakness in both lower limbs with gait disturbance. Physical examination revealed hypoesthesia with a sensory level below T10. Babinski and pathological signs on both sides were weakly positive. Magnetic resonance imaging (MRI) showed a mass at the T10 to T11 level causing severe compression of the spinal cord. Computed tomography (CT) showed complete ossification of the mass. 18F-Fluoro-deoxy-glucose positron emission tomography CT (18F-FDG PET/CT) scan combined with MRI revealed that the mass was an intradural extramedullary high-density ossified nodule. The patient underwent a gross total resection of the mass and pathologic examination indicated that the mass was a meningioma with diffused psammomatous bodies. Conclusion: We identified a rare case of dorsal complete OSM occurring in a 68-year-old woman. After complete surgical resection, although there were complications such as cerebral fluid leakage and fever, the patient finally recovered with a satisfactory result.

18.
Front Neurol ; 14: 1178404, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37693759

RESUMO

Background: Studies have shown that longer leukocyte telomere length (LTL) is significantly associated with increased risk of meningioma. However, there is limited evidence concerning the causal association of LTL with benign and malignant meningiomas or with the location of benign tumors. Methods: We used three LTL datasets from different sources, designated by name and sample size as LTL-78592, LTL-9190, and LTL-472174. The linkage disequilibrium score (LDSC) was used to explore the association between LTL and meningioma. We utilized two-sample bidirectional Mendelian randomization (TSMR) to evaluate whether LTL is causally related to meningioma risk. We adjusted for confounders by conducting multivariable Mendelian randomization (MVMR). Results: In the LTL-78592, longer LTL was significantly associated with increased risk of malignant [odds ratio (OR) = 5.14, p = 1.04 × 10-5], benign (OR = 4.81, p < 0.05), benign cerebral (OR = 5.36, p < 0.05), and benign unspecified meningioma (OR = 8.26, p < 0.05). The same results were obtained for the LTL-9190. In the LTL-472174, longer LTL was significantly associated with increased risk of malignant (OR = 4.94, p < 0.05), benign (OR = 3.14, p < 0.05), and benign cerebral meningioma (OR = 3.59, p < 0.05). Similar results were obtained in the MVMR. In contrast, only benign cerebral meningioma displayed a possible association with longer LTL (OR = 1.01, p < 0.05). No heterogeneity or horizontal pleiotropy was detected. Conclusion: In brief, genetically predicted longer LTL may increase the risk of benign, malignant, and benign cerebral meningiomas, regardless of the LTL measure, in European populations.

19.
Curr Atheroscler Rep ; 25(10): 751-768, 2023 10.
Artigo em Inglês | MEDLINE | ID: mdl-37768409

RESUMO

PURPOSE OF REVIEW: Acute coronary syndrome (ACS) and non-alcoholic fatty liver disease (NAFLD) are two clinically common disease entities that share numerous risk factors. This review aimed to discuss the impacts of NAFLD on ACS. RECENT FINDINGS: In an era of improved control of traditional risk factors, the substantial burden of cardiometabolic abnormalities has caused widespread concern. NAFLD is considered the hepatic component of metabolic syndrome, which can exert an impact on human health beyond the liver. Accumulating studies have demonstrated that NAFLD is closely related to cardiovascular disease, especially coronary artery disease. Interestingly, although recent data have suggested an association between NAFLD and the incidence and outcomes of ACS, the results are not consistent. In this review, we comprehensively summarized evidence and controversies regarding whether NAFLD is a contributor to either the development of ACS or worse outcomes in patients with ACS. The potential pathophysiological and molecular mechanisms involved in the impacts of NAFLD on ACS were also elucidated.


Assuntos
Síndrome Coronariana Aguda , Síndrome Metabólica , Hepatopatia Gordurosa não Alcoólica , Humanos , Hepatopatia Gordurosa não Alcoólica/complicações , Hepatopatia Gordurosa não Alcoólica/epidemiologia , Síndrome Coronariana Aguda/epidemiologia , Fatores de Risco
20.
Medicine (Baltimore) ; 102(34): e34695, 2023 Aug 25.
Artigo em Inglês | MEDLINE | ID: mdl-37653736

RESUMO

Depression is a prevalent condition among cancer patients and significantly impacts their quality of life. Traditional Chinese Medicine, particularly Chinese Herbal Medicine (CHM), has shown potential in both anti-tumor and anti-depressive effects. However, there is a dearth of scientific literature exploring the association between CHM treatment and depression in cancer patients. This study aims to investigate the relationship between CHM treatment and depression in cancer patients. A cross-sectional study was conducted among cancer outpatients at Longhua Hosiptal, Shanghai University of Traditional Chinese Medicine, from June 2020 to April 2021 (Ethical approval number: 2020LCSY057). All patients signed informed consent and completed The European Organization for Research and Treatment of Cancer (EORTC) Quality of Life Questionnaire (EORTC QLQ-C30). Hamilton depression scale was evaluated depression by psychiatrists. The power of the sample size was determined using Gpower statistical and SPSS were used for statistical analysis. A total of 809 completed the study. Gender, medical insurance, the classification of time since diagnosis, ECOG, cancer stage, metastasis, gene mutation, treatment plan and CHM treatment were an important factor affecting depression (P < .05). Further analysis investigated the impact of CHM treatment on depression. There were 374 enrolled in CHM group and 435 enrolled in Non-CHM group. The assessment results of Hamilton depression scale and EORTC QLQ-C30 in CHM group were superior to those in Non-CHM group. The morbidity of depression is 50.27% in CHM group and 66.44% in Non-CHM group. After adjusting for potential confounders (gender, medical insurance, cancer stage, etc.), CHM treatment indicated negative correlation with depression (Odds ratio (OR) = 0.7, 95% confidence interval (CI): 0.5-0.9, P = .020). The interaction effects within each subgroup were no significantly affect the relationship between CHM treatment and depression (P > .05). CHM treatment was an independent protective factor for depression in cancer patients, and lead to better quality of life for cancer patients.


Assuntos
Medicamentos de Ervas Chinesas , Neoplasias , Humanos , Pacientes Ambulatoriais , Estudos Transversais , Medicamentos de Ervas Chinesas/uso terapêutico , Depressão/tratamento farmacológico , Depressão/epidemiologia , Qualidade de Vida , China/epidemiologia , Neoplasias/complicações , Medicina Tradicional Chinesa
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