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1.
Angew Chem Int Ed Engl ; : e202412062, 2024 Sep 24.
Artigo em Inglês | MEDLINE | ID: mdl-39315608

RESUMO

Developing a new route to produce aromatic amines as key chemicals from renewable phenols is a benign alternative to current fossil-based routes like nitroaromatic hydrogenation, but is challenging because of the high dissociation energy of the Ar-OH bond and difficulty in controlling side reactions. Herein, an aerosolizing-pyrolysis strategy was developed to prepare high-density single-site cationic Pd species immobilized on CeO2 (Pd1/CeO2) with excellent sintering resistance. The obtained Pd1/CeO2 catalysts achieved remarkable selectivity of important aromatic amines (yield up to 76.2%) in the phenols amination with amines without external hydrogen sources, while Pd nano-catalysts mainly afforded phenyl-ring-saturation products. The excellent catalytic properties of the Pd1/CeO2 are closely related to high-loading Pd single-site catalysts with abundant surface defect sites and suitable acid-base properties. This report provides a sustainable route for producing aromatic amines from renewable feedstocks.

2.
ACS Sens ; 2024 Sep 16.
Artigo em Inglês | MEDLINE | ID: mdl-39283684

RESUMO

Natural products play a significant role in new drug discovery and anticancer therapy, making the evaluation of their anticancer efficiency crucial for clinical application. However, delivering natural products to single cells and in situ monitoring of induced signaling molecule fluctuation to evaluate anticancer efficiency remain significant challenges. Hence, we proposed a universal and straightforward strategy to construct a bifunctional nanoelectrode that integrates drug loading and monitoring of signal molecule fluctuations at the single-cell level. Platinum (Pt) nanoparticles/reduced graphene oxide (rGO) composites were first electrochemically deposited on the carbon fiber nanoelectrode (CFNE@Pt/rGO) to serve as electrocatalytic materials for the monitoring of natural-product-induced reactive oxygen species (ROS) generation. The GO/natural product complex, formed by π-π stacking and hydrophobic interactions, was further electrochemically reduced on the surface of CFNE@Pt/rGO to enable the CFNE drug-loading function. Using this bifunctional functional nanoelectrode, a series of natural products (such as capsaicin, curcumin, and chrysin) were delivered into single cancer cells, and their anticancer efficiency was evaluated by measuring ROS generation. The results showed that intracellular ROS production induced by chrysin was 1.5-fold greater than that of curcumin and 2.1-fold greater than that of capsaicin. This work proposes an effective tool to evaluate the anticancer efficiency of various natural products. Additionally, this nanotool can be expanded to monitor the fluctuation of other biomolecules (such as RNS, GSH, NADH, etc.) by replacing Pt nanoparticles with other electrocatalytic materials, which is significant for comprehensively exploring the anticancer efficiency of new drugs and for the clinical treatment of various diseases.

3.
Diabetes Res Clin Pract ; : 111867, 2024 Sep 23.
Artigo em Inglês | MEDLINE | ID: mdl-39322028

RESUMO

AIM: This study aimed to investigate the separate and joint associations of triglyceride-glucose (TyG) index accumulation and variability with prediabetes and diabetes risk. METHODS: Health check-up participants who underwent 3 sequential health examinations during 2012-2016 and were followed up from 2017 to 2021 were enrolled and categorized into two subcohorts: (a) progression from normoglycaemia to prediabetes subcohort (n = 9373) and (b) progression from prediabetes to diabetes subcohort (n = 4563). Cumulative TyG (cumTyG) and TyG variability from Exams 1-3 were the exposures of interest in our study. The outcomes were newly incident prediabetes or diabetes. RESULTS: In the prediabetes development subcohort, 2,074 participants developed prediabetes over a 2.42-year follow-up. Higher cumTyG (HR, 2.02; 95 % CI, 1.70-2.41), but not greater TyG variability alone, was significantly associated with increased prediabetes risk. In the diabetes development subcohort, 379 participants developed diabetes over a 3.0-year follow-up. Higher cumTyG (HR, 3.54; 95 % CI, 2.29-5.46), but not greater TyG variability alone, was significantly associated with increased diabetes risk. The "cumTyG+variability" combination had the highest predictive value for prediabetes and diabetes beyond a single baseline TyG measurement. CONCLUSION: Higher cumTyG exposure independently predicts prediabetes and diabetes incidence. Coexisting cumTyG and variability could further yield incrementally greater risks.

4.
Therap Adv Gastroenterol ; 17: 17562848241275332, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-39290332

RESUMO

Background: Clarithromycin plays an important role in eradicating Helicobacter pylori (H. pylori) through quadruple therapy. However, there is limited research on whether different forms of clarithromycin dosage have similar efficacies against H. pylori. Objective: We aimed to evaluate the efficacy of different forms of clarithromycin dosage in bismuth-containing quadruple therapy for eradicating H. pylori. Design: A single-center retrospective analysis comparing the efficacy of different forms of clarithromycin dosage in eradicating H. pylori. Methods: An analysis was conducted on patients diagnosed with H. pylori infection through the 13C-urea breath test (13C-UBT) at Henan Provincial People's Hospital, China from 2020 to 2022 who were treated with either a dispersible or sustained-release clarithromycin tablet (500 mg each), alongside amoxicillin (1000 mg), a standard dose of proton pump inhibitors (PPIs), and bismuth citrate (220 mg), administered twice daily as part of bismuth-containing quadruple therapy. Treatment efficacy was assessed using 13C-UBT at least 4 weeks after treatment completion. The H. pylori eradication rate was the primary outcome of this study, and factors influencing it were analyzed. Results: Among 2094 screened patients, 307 with H. pylori infection (mean age, 41.8 ± 0.7 years; 43% men) received bismuth-containing quadruple therapy. Univariate analysis of the dispersible and sustained-release tablet groups revealed a lower eradication rate with the sustained-release tablet compared with the dispersible clarithromycin tablet regimen (75.26% (73/97) vs 95.26% (200/210), respectively; p < 0.05). Other factors, such as smoking, age, and PPI type, were not significantly associated with the cure rate. Multivariate analysis identified the form of clarithromycin dosage (dispersible vs sustained-release) to be an independent risk factor for eradication failure using the bismuth-containing quadruple therapy (odds ratio = 0.145, 95% confidence interval: (0.065-0.323); p < 0.05). Conclusion: The clarithromycin dispersible tablet demonstrated a higher H. pylori eradication rate, and the sustained-release clarithromycin tablet may be inappropriate for H. pylori eradication.


Clarithromycin sustained-release tablet may be an improper therapy for the eradication of Helicobacter pylori The clarithromycin dispersible tablet therapy demonstrated a higher eradication rate for H. pylori infection, and clarithromycin sustained-release tablets may be inappropriate for the eradication of H. pylori.

5.
Zhong Nan Da Xue Xue Bao Yi Xue Ban ; 49(6): 951-960, 2024 Jun 28.
Artigo em Inglês, Chinês | MEDLINE | ID: mdl-39311791

RESUMO

OBJECTIVES: Insulin resistance (IR) is closely associated with atherosclerosis and adverse cardiovascular events. The triglyceride-glucose (TyG) index is an effective indicator for assessing IR. This study aims to explore the relationship between the TyG index and the risk of arterial stiffness progression. METHODS: This retrospective cohort study included adults who had undergone at least 2 health examinations with arteriosclerosis testing at the Health Management Medical Center of the Third Xiangya Hospital, Central South University, between January 2012 and December 2022. Clinical data were collected. The TyG index was calculated using the formula of ln (triglycerides×fasting blood glucose/2). The baseline TyG index was assessed as both a continuous variable and as a quartile-based categorical variable. The progression of arteriosclerosis was evaluated by the annual change rate of brachial-ankle pulse wave velocity (baPWV) and the new onset of increased arterial stiffness. Linear regression model and Cox proportional hazard model were used to explore whether the TyG index is an independent risk factor for arterial stiffness progression. Subgroup analyses were performed based on age, gender, body mass index (BMI), and the presence of type 2 diabetes, hypertension, or hyperlipidemia to determine the characteristics of the association between the TyG index and arterial stiffness progression. RESULTS: A total of 4 971 participants were included, with a follow-up period of (3.01±1.98) years. During follow-up, the annual baPWV change rate was (24.94±81.15) cm/s, and 278 cases of new onset of increased aterial stiffness were recorded. After fully adjusting for confounding factors, the baseline TyG index was independently positively correlated with both the annual baPWV change rate (ß=17.5, 95% CI 9.00 to 25.94, P<0.001) and the risk of new onset of increased aterial stiffness [hazard ratio (HR)=1.43, 95% CI 1.18 to 1.74, P<0.001] when the TyG index was treated as a continuous variable. When treated as a categorical variable, higher TyG index quartiles were associated with progressively higher baPWV change rates and new onset of increased arterial stiffness (all P<0.05). In subgroups of participants aged ≥45 years, males, BMI<28 kg/m2, those with or without hypertension, and those without type 2 diabetes or hyperlipidemia, the baseline TyG index (both continuous and categorical) was significantly associated with new onset of increased arterial stiffness (all P<0.05), with no significant interactions observed across subgroups (all P>0.05). CONCLUSIONS: The TyG index is independently associated with an increased risk of arterial stiffness progression and may serve as a useful indicator for assessing arterial stiffness progression risk in health check-up populations.


Assuntos
Glicemia , Progressão da Doença , Resistência à Insulina , Análise de Onda de Pulso , Triglicerídeos , Rigidez Vascular , Humanos , Estudos Retrospectivos , Rigidez Vascular/fisiologia , Triglicerídeos/sangue , Glicemia/análise , Fatores de Risco , Feminino , Masculino , Arteriosclerose/sangue , Arteriosclerose/fisiopatologia , Diabetes Mellitus Tipo 2/sangue , Diabetes Mellitus Tipo 2/fisiopatologia , Índice Tornozelo-Braço , Pessoa de Meia-Idade , Estudos de Coortes , Índice de Massa Corporal
6.
Tissue Cell ; 91: 102555, 2024 Sep 07.
Artigo em Inglês | MEDLINE | ID: mdl-39276487

RESUMO

PURPOSE: The present study aims to investigate the biological function of Tyrobp in myocardial ischemia-reperfusion injury (MIRI) and to clarify its potential reaction mechanisms. METHODS: AC16 cells were induced by oxygen-glucose deprivation/reoxygenation (OGD/R) to simulate the MIRI in vitro. The cell transfection technology was used to downregulate Tyrobp, followed by assessment of cell damage, apoptosis and cytokines production via Cell Counting Kit (CCK)-8 assay, lactate dehydrogenase (LDH) release assay, TUNEL and ELISA assays, respectively. Immunofluorescence assay was performed to assess GSDMD. Corresponding proteins were detected via western blotting, and Co-immunoprecipitation (Co-IP) assay was used to validate proteins interaction. RESULTS: Tyrobp was upregulated in OGD/R-exposed AC16 cells, and Tyrobp deficiency significantly alleviated OGD/R-caused cell viability loss, LDH release and cell apoptosis in AC16 cells. Meanwhile, Tyrobp deficiency inhibited the activation of NLRP3 inflammasome, reduced the production of cytokines and inhibited GSDMD intensity and GSDMD-N expression. Additionally, Tyrobp could interact with Syk and regulate Syk/NF-κB signaling. The rescue experiments showed that the above effects of Tyrobp deficiency on OGD/R-exposed AC16 cells were partly weakened by Syk overexpression. CONCLUSION: Tyrobp deficiency alleviated MIRI by inhibiting NLRP3-mediated inflammation and pyroptosis through regulating Syk, providing a novel target for the treatment of MIRI.

7.
Biomed Chromatogr ; : e5964, 2024 Sep 10.
Artigo em Inglês | MEDLINE | ID: mdl-39252549

RESUMO

A liquid chromatography electrospray ionization tandem mass spectrometry method with amoxicillin-d4 as the stable isotope-labeled internal standard for simultaneous quick detection of amoxicillin and clavulanic acid in human plasma was developed and validated. Chromatographic separations were performed on a Hedera ODS-2 column (2.1 × 150 mm, 5 µm). The mobile phases for gradient elution were aqueous solution containing 0.2% acetic acid (AA) (mobile phase A) together with organic phase solution (acetonitrile and methanol mixed solution, mobile phase B). Mass spectrometry was performed using negative electrospray ionization in multiple reaction monitoring mode. The target fragment ion pairs of amoxicillin, clavulanic acid and amoxicillin-d4 were m/z 364.1 → 223.1, 198.1 → 135.9 and 368.1 → 227.1, respectively. The linear ranges of this method were 40-5,000 ng/ml for amoxicillin and 30-2,500 ng/ml for clavulanic acid, with coefficient of determination > 0.9900. This method validation included selectivity, standard curve, lower limit of quantitation, accuracy, precision, recovery, matrix effect (hemolytic matrix and hyperlipidemic matrix), carryover, stability, dilution reliability and incurred sample reanalysis study. A successful application of this method was realized in a pharmacokinetic study after administration of amoxicillin-clavulanic acid potassium granules.

8.
Immun Inflamm Dis ; 12(9): e70007, 2024 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-39222024

RESUMO

BACKGROUND: Myeloid-derived suppressor cells (MDSCs) play a pivotal role in immunosuppression and tumor progression in hepatocellular carcinoma (HCC). While various treatments like surgical resection, ablation, and radiotherapy have been studied for their effects on circulating MDSC frequencies in HCC patients, the findings remain inconclusive. Transarterial Chemoembolization (TACE) stands as the standard care for unresectable HCC, with Microparticle TACE (mTACE) gaining prominence for its capacity to induce significant tumor necrosis. However, the immunological ramifications of such pathological outcomes are scarcely reported. METHODS AND RESULTS: This study aims to elucidate the alterations in MDSC subtypes, specifically monocytic MDSCs (mMDSCs) and early-stage MDSCs (eMDSCs), post-mTACE and to investigate their clinical correlations in HCC patients. A cohort comprising 75 HCC patients, 16 liver cirrhosis patients, and 20 healthy controls (HC) was studied. Peripheral blood samples were collected and analyzed for MDSC subtypes. The study also explored the associations between MDSC frequencies and various clinical parameters in HCC patients. The frequency of mMDSCs was significantly elevated in the HCC group compared to liver cirrhosis and HC. Importantly, mMDSC levels were strongly correlated with aggressive clinical features of HCC, including tumor size, vascular invasion, and distant metastasis. Post-mTACE, a marked reduction in mMDSC frequencies was observed, while eMDSC levels remained stable. CONCLUSIONS: Our findings underscore the critical role of mMDSCs in HCC pathogenesis and their potential as a therapeutic target. The study also highlights the efficacy of mTACE in modulating the immunosuppressive tumor microenvironment, thereby opening new avenues for combinatorial immunotherapeutic strategies in HCC management.


Assuntos
Carcinoma Hepatocelular , Quimioembolização Terapêutica , Neoplasias Hepáticas , Células Supressoras Mieloides , Humanos , Carcinoma Hepatocelular/terapia , Carcinoma Hepatocelular/imunologia , Carcinoma Hepatocelular/patologia , Neoplasias Hepáticas/terapia , Neoplasias Hepáticas/imunologia , Neoplasias Hepáticas/patologia , Células Supressoras Mieloides/imunologia , Quimioembolização Terapêutica/métodos , Masculino , Feminino , Pessoa de Meia-Idade , Idoso , Micropartículas Derivadas de Células/imunologia , Micropartículas Derivadas de Células/metabolismo , Adulto , Microambiente Tumoral/imunologia
9.
Cancer ; 2024 Aug 13.
Artigo em Inglês | MEDLINE | ID: mdl-39136180

RESUMO

BACKGROUND: PDGFRB fusions in acute lymphoblastic leukemia (ALL) is rare. The authors identified 28 pediatric PDGFRB-positive ALL. They analyzed the features, outcomes, and prognostic factors of this disease. METHODS: This multicenter, retrospective study included 6457 pediatric patients with newly diagnosed PDGFRB fusion ALL according to the CCCG-ALL-2015 and CCCG-ALL-2020 protocols from April 2015 to April 2022 in 20 hospitals in China. Of these patients, 3451 were screened for PDGFRB fusions. RESULTS: Pediatric PDGFRB-positive ALL accounted for only 0.8% of the 3451 cases tested for PDGFRB. These patients included 21 males and seven females and 24 B-ALL and 4 T-ALL; the median age was 10 years; and the median leukocyte count was 29.8 × 109/L at baseline. Only one patient had eosinophilia. Three patients had an IKZF1 deletion, three had chromosome 5q31-33 abnormalities, and one suffered from a complex karyotype. The 3-year event-free survival (EFS), overall survival (OS), and cumulative incidence of relapse (CIR) were 33.1%, 65.5%, and 32.1%, respectively, with a median follow-up of 25.5 months. Twenty patients were treated with chemotherapy plus tyrosine-kinase inhibitors (TKIs) and eight were treated without TKI. Complete remission (CR) rates of them were 90.0% and 63.6%, respectively, but no differences in EFS, OS, or CIR. Univariate analyses showed patients with IKZF1 deletion or measurable residual disease (MRD) ≥0.01% after induction had inferior outcomes (p < .05). CONCLUSIONS: Pediatric PDGFRB-positive ALL has a poor outcome associated with high-risk features. Chemotherapy plus TKIs can improve the CR rate, providing an opportunity for lower MRD levels and transplantation. MRD ≥0.01% was a powerful adverse prognostic factor, and stratified treatment based on MRD may improve survival for these patients. PLAIN LANGUAGE SUMMARY: Pediatric acute lymphoblastic leukemia patients with PDGFRB fusions are associated with high-risk clinical features such as older age, high white blood cell count at diagnosis, high measurable residual disease after induction therapy, and increased risk of leukemia relapse. Chemotherapy plus tyrosine-kinase inhibitors can improve the complete remission rate and provide an opportunity for lower measurable residual disease (MRD) levels and transplantation for pediatric PDGFRB-positive acute lymphoblastic leukemia (ALL) patients. The MRD level was also a powerful prognostic factor for pediatric PDGFRB-positive ALL patients.

10.
World J Gastrointest Oncol ; 16(6): 2380-2393, 2024 Jun 15.
Artigo em Inglês | MEDLINE | ID: mdl-38994149

RESUMO

Hepatic artery infusion chemotherapy (HAIC) has good clinical efficacy in the treatment of advanced hepatocellular carcinoma (HCC); however, its efficacy varies. This review summarized the ability of various markers to predict the efficacy of HAIC and provided a reference for clinical applications. As of October 25, 2023, 51 articles have been retrieved based on keyword predictions and HAIC. Sixteen eligible articles were selected for inclusion in this study. Comprehensive literature analysis found that methods used to predict the efficacy of HAIC include serological testing, gene testing, and imaging testing. The above indicators and their combined forms showed excellent predictive effects in retrospective studies. This review summarized the strategies currently used to predict the efficacy of HAIC in middle and advanced HCC, analyzed each marker's ability to predict HAIC efficacy, and provided a reference for the clinical application of the prediction system.

11.
Immunotargets Ther ; 13: 343-348, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38978969

RESUMO

Unresectable recurrent lymph node metastasis of colorectal cancer (CRC) is considered as an incurable disease clinically and has a very poor prognosis. Here, we report a male KRAS wild-type CRC case with a huge abdominal lymph node metastasis (12 cm in diameter) after CRC surgery. After three intratumoral injections of oncolytic virus (H101) combined with four cycles of low-dose oral capecitabine, the size of the metastatic lymph node shrank remarkably in response to the anticancer drug and a complete response (CR) was achieved with progression-free survival (PFS) of 19 months. The main adverse reaction was mild fever, which was relieved after physical cooling. The patient is in a general good condition now without any relapse of abdominal lymph node for over a year. On this basis, we propose that the combination therapy of oncolytic virus and capecitabine could be a promising clinical therapeutic strategy for unresectable recurrent lymph node metastasis in CRC patients.

12.
Sci Total Environ ; 946: 174442, 2024 Oct 10.
Artigo em Inglês | MEDLINE | ID: mdl-38964387

RESUMO

The decomposition of macrophytes plays a crucial role in the nutrient cycles of macrophyte-dominated eutrophication lakes. While research on plant decomposition mechanisms and microbial influences has rapid developed, it is curious that plant decomposition models have remained stagnant at the single-stage model from 50 years ago, without endeavor to consider any important factors. Our research conducted in-situ experiments and identified the optimal metrics for decomposition-related microbes, thereby establishing models for microbial impacts on decomposition rates (k_RDR). Using backward elimination in stepwise regression, we found that the optimal subset of independent variables-specifically Gammaproteobacteria-Q-L, Actinobacteriota-Q-L, and Ascomycota-Q-L-increased the adjusted R-squared (Ra2) to 0.93, providing the best modeling for decomposition rate (p = 0.002). Additionally, k_RDR can be modeled by synergic parameters of ACHB-Q-L, LDB-Q-L, and AB-Q-L for bacteria, and SFQ for fungi, albeit with a slightly lower Ra2 of 0.7-0.9 (p < 0.01). The primary contribution of our research lies in two key aspects. Firstly, we introduced optimal metrics for modeling microbes, opting for debris surface microbes over sediment microbes, and prioritizing absolute abundance over relative abundance. Secondly, our model represents a noteworthy advancement in debris modeling. Alongside elucidating the focus and innovative aspects of our work, we also addressed existing limitations and proposed directions for future research. SYNOPSIS: This study explores optimum metrics for decomposition-related microbes, offering precise microbial models for enhanced lake nutrient cycle simulation.


Assuntos
Eutrofização , Lagos , Lagos/microbiologia , Lagos/química , Plantas , Monitoramento Ambiental , Bactérias/metabolismo
13.
BMC Infect Dis ; 24(1): 692, 2024 Jul 11.
Artigo em Inglês | MEDLINE | ID: mdl-38992594

RESUMO

BACKGROUND: Associations between Helicobacter pylori infection and lifestyle factors vary greatly by geographic location. This study aims to evaluate the prevalence of Helicobacter pylori infection in the Hunan cohort of central China and analyze the associations between Helicobacter pylori infection and lifestyle factors in different occupations. METHODS: This was a cross-sectional study. Participants who received an annual physical examination were invited. Helicobacter pylori infection was detected by the 13 C-urea breath test. Self-reported physical examination questionnaires were used to analyze participants' demographic information, diet, exercise status, and sleep situations. RESULTS: 23254 participants finished this study. The Helicobacter pylori infection rate in the Hunan area was 25.8%, with the lowest prevalence in students (8.5%) and the highest prevalence in business managers (29.9%). The risk factors for Helicobacter pylori infection were marital status (divorced or married) (OR:1.16, 95%CI:1.090-1.234), overeating (OR:1.105, 95%CI: 1.001-1.220), and consumption of eggs (OR:1.047, 95%CI:1.004-1.092), animal viscera (OR: 1.077, 95%CI:1.014-1.144) and coffee (OR:1.074, 95%CI:1.019-1.132). Participants' education level (OR:0.911, 95%CI:0.881-0942), consumption of midnight snack (OR:0.926, 95%CI:0.877-0.977), and vegetable (OR:0.927, 95%CI: 0.884-0.972) were protective factors against Helicobacter pylori infection. Whether participants exercised regularly or had sleep problems had no significant effect on Helicobacter pylori infection. Different professionals showed significant differences in the rates of overeating, eating three meals on time, midnight snack, and consuming coffee, eggs, animal viscera, and vegetables > 3 times/week (P values < 0.05). CONCLUSIONS: Helicobacter pylori infection showed a significant relationship with dietary factors, but not significantly with sleep and exercise factors. Different occupations showed different dietary tendencies related to Helicobacter pylori infection. The design of an occupation-based Helicobacter pylori screening and prevention program is supported.


Assuntos
Dieta , Exercício Físico , Infecções por Helicobacter , Helicobacter pylori , Sono , Humanos , Infecções por Helicobacter/epidemiologia , Estudos Transversais , Feminino , Masculino , Adulto , Pessoa de Meia-Idade , China/epidemiologia , Dieta/estatística & dados numéricos , Prevalência , Fatores de Risco , Adulto Jovem , Ocupações/estatística & dados numéricos , Estilo de Vida , Inquéritos e Questionários , Testes Respiratórios
14.
Tissue Cell ; 89: 102458, 2024 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-38991271

RESUMO

CISD2 and ferroptosis participate in cancer development, but are rarely reported in ovarian cancer. This study aimed to clarify interaction between CISD2 and ferroptosis and evaluate related mechanisms. si-CISD2, wt-p53 and mut-p53 lentiviruses were transfected into SKOV-3 cells. CISD2 and p53 (wild/mutant p53) gene transcriptions were evaluated by RT-PCR. Cell viability, invasion ability, and migration capacity were determined. Expressions of ferroptosis-associated CISD2, p53, elastin, ß-catenin and levels of Gpx4 and TRF were examined. CISD2 downregulation (si-CISD2) has a significant inhibitory effect on cell activity and exerts a synergistic effect with p53. si-CISD2 and Wt-p53 markedly inhibited SKOV-3 invasion and migration capacity, compared to the downregulation control (si-NC) and overexpression control (ov-NC) group (p < 0.001). p53 expression was increased significantly in si-CISD2 treated SKOV-3, compared to si-NC treated cells (p < 0.05). si-CISD2 markedly decreased elastin and ß-catenin expression compared to the si-NC and ov-NC group (p < 0.001). si-CISD2 modulated ferroptosis-associated molecules (CDKN1A, GLS2, SAT1, SLC7A11), decreased Gpx4 and increased TRF levels in SKOV-3. si-CISD2 and Wt-p53 played an obvious synergistic role in regulating ferroptosis-associated molecules and Gpx4/TRF pathway molecules. In conclusion, CISD2 downregulation was involved in ferroptosis process of SKOV-3 cells. This effect of CISD2 was mediated by wild-type p53-associated GLS2/SAT1/SLC7A11 and Gpx4/TRF pathway.


Assuntos
Regulação para Baixo , Ferroptose , Neoplasias Ovarianas , Fosfolipídeo Hidroperóxido Glutationa Peroxidase , Transdução de Sinais , Proteína Supressora de Tumor p53 , Humanos , Ferroptose/genética , Proteína Supressora de Tumor p53/metabolismo , Proteína Supressora de Tumor p53/genética , Feminino , Regulação para Baixo/genética , Neoplasias Ovarianas/patologia , Neoplasias Ovarianas/metabolismo , Neoplasias Ovarianas/genética , Linhagem Celular Tumoral , Fosfolipídeo Hidroperóxido Glutationa Peroxidase/metabolismo , Fosfolipídeo Hidroperóxido Glutationa Peroxidase/genética , Movimento Celular/genética , Regulação Neoplásica da Expressão Gênica , Sistema y+ de Transporte de Aminoácidos/metabolismo , Sistema y+ de Transporte de Aminoácidos/genética
15.
Artigo em Inglês | MEDLINE | ID: mdl-38829708

RESUMO

Randomized clinical trials are underway to evaluate the efficacy of novel agents targeting the alternative complement pathway in patients with C3 glomerulopathy (C3G), a rare glomerular disease. The Kidney Health Initiative convened a panel of experts in C3G to ( 1 ) assess the data supporting the use of the prespecified trial end points as measures of clinical benefit and ( 2 ) opine on efficacy findings they would consider compelling as treatment(s) of C3G in native kidneys. Two subpanels of the C3G Trial Endpoints Work Group reviewed the available evidence and uncertainties for the association between the three prespecified end points-( 1 ) proteinuria, ( 2 ) eGFR, and ( 3 ) histopathology-and anticipated outcomes. The full work group provided feedback on the summaries provided by the subpanels and on what potential treatment effects on the proposed end points they would consider compelling to support evidence of an investigational product's effectiveness for treating C3G. Members of the full work group agreed with the characterization of the data, evidence, and uncertainties, supporting the end points. Given the limitations of the available data, the work group was unable to define a minimum threshold for change in any of the end points that might be considered clinically meaningful. The work group concluded that a favorable treatment effect on all three end points would provide convincing evidence of efficacy in the setting of a therapy that targeted the complement pathway. A therapy might be considered effective in the absence of complete alignment in all three end points if there was meaningful lowering of proteinuria and stabilization or improvement in eGFR. The panel unanimously supported efforts to foster data sharing between academic and industry partners to address the gaps in the current knowledge identified by the review of the end points in the aforementioned trials.

16.
Int J Surg ; 2024 Jun 20.
Artigo em Inglês | MEDLINE | ID: mdl-38896873

RESUMO

BACKGROUND: Electronic symptom monitoring via patient-reported outcome in surgical oncology is limited owing to lengthy instruments and non-specific items in common patient-reported outcome instruments. To establish electronic symptom monitoring through a clinically relevant and fit-for-purpose core set of patient-reported outcome in patients undergoing lung cancer surgery. MATERIALS AND METHODS: One qualitative (Cohort 1) and two prospective studies (Cohorts 2 and 3) were conducted between 2018 and 2023. Patients undergoing lung cancer surgery were recruited. Items of symptoms and daily functioning were generated through extensive interviews in Cohort 1 and incorporated into a smartphone-based platform to establish the electronic Perioperative Symptom Assessment for Lung surgery (ePSA-Lung). This tool was finalized and validated in Cohort 2. Patients in Cohort 3 were longitudinally monitored for the first year post-surgery using the validated ePSA-Lung. RESULTS: In total, 1,037 patients scheduled for lung cancer surgery were recruited. The 11-item draft PSA-Lung was generated based on qualitative interview with 39 patients and input from a Delphi study involving 42 experts. A 9-item ePSA-Lung was finalized by assessing 223 patients in the validation cohort; the results supported the instrument's understandability, reliability, sensitivity, and surgical specificity. In Cohort 3 (n=775), compliance ranged from 63.21% to 84.76% during the one-year follow-up after discharge. Coughing, shortness of breath, and disturbed sleep were the most severe symptoms after discharge. Longitudinally, patients who underwent single-port video-assisted thoracic surgery had a lower symptom burden than those who underwent multi-port video-assisted thoracic surgery or thoracotomy (all symptoms, P<0.001). CONCLUSION: The ePSA-Lung is valid, concise, and clinically applicable as it supports electronic symptom monitoring in surgical oncology care. The need for long-term extensive care was identified for patients after discharge, even in early-stage cancer with potential curative treatment.

17.
Laryngoscope ; 2024 Jun 06.
Artigo em Inglês | MEDLINE | ID: mdl-38841861

RESUMO

OBJECTIVES: We conducted the first trial to evaluate the effect that fire-needle acupuncture at Neiyingxiang (ExHN 9) in patients with moderate to severe persistent AR. METHODS: This was a randomized, single-center, sham, and placebo-controlled rial. Patients were kept blinded to their group assignment. All participants were equally assigned to the fire-needle acupuncture (FA) treatment group, sham fire-needle acupuncture (SFA) group, or loratadine group. The trial was designed with an acupuncture intervention once a week for 4 weeks and follow-up 4 weeks. The Total Nasal Symptom Scores (TNSS), Total Non-Nasal Symptom Scores (TNNSS), Rhinoconjunctivitis Quality of Life Questionnaire (RQLQ), Allergic Rhinitis Control Test (ARCT), and total nasal resistance of 150 Pa were evaluated as outcome measures. RESULTS: A total of 180 participants were enrolled, and 175 participants completed the trials. At 2 and 4 weeks, the TNSS, TNNSS, and RQLQ scores of the FA and loratadine groups were significantly lower than those of the SFA group. At 8 weeks, the scores of loratadine group increased compared with the FA group (Cohen's d >0.80, p < 0.01). The ACRT score of the FA treatment group rose gradually. After treatment, the total nasal resistance of the FA group was significantly decreased and was lower than that of the other two groups (Cohen's d >0.80, p < 0.01). CONCLUSION: Fire-needle acupuncture at Neiyingxiang (ExHN 9) is effective for improving nasal allergy symptoms and quality of life in patients with moderate and severe persistent AR, and the duration of its effects is long. LEVEL OF EVIDENCE: 2 Laryngoscope, 2024.

18.
Int J Hyperthermia ; 41(1): 2365974, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38880503

RESUMO

PURPOSE: To investigate the feasibility, safety and efficacy of high intensity focused ultrasound ablation (HIFU) as a preoperative treatment for challenging hysteroscopic myomectomies. MATERIALS AND METHODS: A total of 75 patients diagnosed with types 0-III of uterine fibroids were enrolled. Based on the Size, Topography, Extension of the base, Penetration and lateral Wall position (STEPW) classification scoring system, 25 cases with a score ≥ 5 points were treated with HIFU followed by hysteroscopic myomectomy (HIFU + HM group), whereas 50 cases with a score < 5 points were treated with hysteroscopic myomectomy (HM group). RESULTS: The median preoperative STEPW score was 7 in the HIFU + HM group and 2 in the HM group. The average non-perfused volume (NPV) ratio achieved in fibroids after HIFU was 86.87%. Patients in the HIFU + HM group underwent hysteroscopic myomectomy one to four days after HIFU, and downgrading was observed in 81.81% of fibroids. The operation time for patients in the HIFU + HM group was 73 min and the success rate of myomectomy in a single attempt was 60%. The volume of distention medium used during the operation was greater in the HIFU + HM group than in the HM group (15,500 ml vs. 7500 ml). No significant difference was observed between the two groups in terms of intraoperative blood loss, the incidence of intraoperative and postoperative complications, menstrual volume score, or uterine fibroid quality of life score. CONCLUSION: HIFU can be utilized as a preoperative treatment for large submucosal fibroids prior to hysteroscopic myomectomy. HIFU offers a novel approach in the management of this subset of patients.


Assuntos
Ablação por Ultrassom Focalizado de Alta Intensidade , Histeroscopia , Leiomioma , Miomectomia Uterina , Humanos , Feminino , Ablação por Ultrassom Focalizado de Alta Intensidade/métodos , Adulto , Miomectomia Uterina/métodos , Histeroscopia/métodos , Pessoa de Meia-Idade , Leiomioma/cirurgia , Leiomioma/terapia , Estudos de Viabilidade , Resultado do Tratamento , Neoplasias Uterinas/cirurgia
19.
Cancer Med ; 13(12): e7346, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38923758

RESUMO

OBJECTIVES: Previous studies have demonstrated that obesity may impact the efficacy of anti-PD1 therapy, but the underlying mechanism remains unclear. In this study, our objective was to determine the prognostic value of obesity in patients with oral tongue squamous cell carcinoma (OTSCC) treated with pembrolizumab and establish a subtype based on fatty acid metabolism-related genes (FAMRGs) for immunotherapy. MATERIALS AND METHODS: We enrolled a total of 56 patients with OTSCC who underwent neoadjuvant anti-PD1 therapy. Univariate and multivariate Cox regression analyses, Kaplan-Meier survival analysis, and immunohistochemistry staining were performed. Additionally, we acquired the gene expression profiles of pan-cancer samples and conducted GSEA and KEGG pathway analysis. Moreover, data from TCGA, MSigDB, UALCAN, GEPIA and TIMER were utilized to construct the FAMRGs subtype. RESULTS: Our findings indicate that high Body Mass Index (BMI) was significantly associated with improved PFS (HR = 0.015; 95% CI, 0.001 to 0.477; p = 0.015), potentially attributed to increased infiltration of PD1 + T cells. A total of 91 differentially expressed FAMRGs were identified between the response and non-response groups in pan-cancer patients treated with immunotherapy. Of these, 6 hub FAMRGs (ACSL5, PLA2G2D, PROCA1, IL4I1, UBE2L6 and PSME1) were found to affect PD-1 expression and T cell infiltration in HNSCC, which may impact the efficacy of anti-PD1 therapy. CONCLUSION: This study demonstrates that obesity serves as a robust prognostic predictor for patients with OTSCC undergoing neoadjuvant anti-PD1 therapy. Furthermore, the expression of 6 hub FAMRGs (ACSL5, PLA2G2D, PROCA1, IL4I1, UBE2L6 and PSME1) plays a pivotal role in the context of anti-PD1 therapy and deserves further investigation.


Assuntos
Inibidores de Checkpoint Imunológico , Terapia Neoadjuvante , Obesidade , Neoplasias da Língua , Humanos , Neoplasias da Língua/tratamento farmacológico , Neoplasias da Língua/metabolismo , Neoplasias da Língua/imunologia , Neoplasias da Língua/patologia , Neoplasias da Língua/mortalidade , Neoplasias da Língua/genética , Feminino , Masculino , Terapia Neoadjuvante/métodos , Obesidade/metabolismo , Obesidade/complicações , Pessoa de Meia-Idade , Inibidores de Checkpoint Imunológico/uso terapêutico , Prognóstico , Idoso , Carcinoma de Células Escamosas de Cabeça e Pescoço/tratamento farmacológico , Carcinoma de Células Escamosas de Cabeça e Pescoço/imunologia , Carcinoma de Células Escamosas de Cabeça e Pescoço/mortalidade , Carcinoma de Células Escamosas de Cabeça e Pescoço/metabolismo , Carcinoma de Células Escamosas de Cabeça e Pescoço/genética , Carcinoma de Células Escamosas de Cabeça e Pescoço/terapia , Anticorpos Monoclonais Humanizados/uso terapêutico , Receptor de Morte Celular Programada 1/antagonistas & inibidores , Receptor de Morte Celular Programada 1/metabolismo , Adulto , Índice de Massa Corporal , Biomarcadores Tumorais/metabolismo
20.
Lancet ; 403(10445): 2720-2731, 2024 Jun 22.
Artigo em Inglês | MEDLINE | ID: mdl-38824941

RESUMO

BACKGROUND: Anti-PD-1 therapy and chemotherapy is a recommended first-line treatment for recurrent or metastatic nasopharyngeal carcinoma, but the role of PD-1 blockade remains unknown in patients with locoregionally advanced nasopharyngeal carcinoma. We assessed the addition of sintilimab, a PD-1 inhibitor, to standard chemoradiotherapy in this patient population. METHODS: This multicentre, open-label, parallel-group, randomised, controlled, phase 3 trial was conducted at nine hospitals in China. Adults aged 18-65 years with newly diagnosed high-risk non-metastatic stage III-IVa locoregionally advanced nasopharyngeal carcinoma (excluding T3-4N0 and T3N1) were eligible. Patients were randomly assigned (1:1) using blocks of four to receive gemcitabine and cisplatin induction chemotherapy followed by concurrent cisplatin radiotherapy (standard therapy group) or standard therapy with 200 mg sintilimab intravenously once every 3 weeks for 12 cycles (comprising three induction, three concurrent, and six adjuvant cycles to radiotherapy; sintilimab group). The primary endpoint was event-free survival from randomisation to disease recurrence (locoregional or distant) or death from any cause in the intention-to-treat population. Secondary endpoints included adverse events. This trial is registered with ClinicalTrials.gov (NCT03700476) and is now completed; follow-up is ongoing. FINDINGS: Between Dec 21, 2018, and March 31, 2020, 425 patients were enrolled and randomly assigned to the sintilimab (n=210) or standard therapy groups (n=215). At median follow-up of 41·9 months (IQR 38·0-44·8; 389 alive at primary data cutoff [Feb 28, 2023] and 366 [94%] had at least 36 months of follow-up), event-free survival was higher in the sintilimab group compared with the standard therapy group (36-month rates 86% [95% CI 81-90] vs 76% [70-81]; stratified hazard ratio 0·59 [0·38-0·92]; p=0·019). Grade 3-4 adverse events occurred in 155 (74%) in the sintilimab group versus 140 (65%) in the standard therapy group, with the most common being stomatitis (68 [33%] vs 64 [30%]), leukopenia (54 [26%] vs 48 [22%]), and neutropenia (50 [24%] vs 46 [21%]). Two (1%) patients died in the sintilimab group (both considered to be immune-related) and one (<1%) in the standard therapy group. Grade 3-4 immune-related adverse events occurred in 20 (10%) patients in the sintilimab group. INTERPRETATION: Addition of sintilimab to chemoradiotherapy improved event-free survival, albeit with higher but manageable adverse events. Longer follow-up is necessary to determine whether this regimen can be considered as the standard of care for patients with high-risk locoregionally advanced nasopharyngeal carcinoma. FUNDING: National Natural Science Foundation of China, Key-Area Research and Development Program of Guangdong Province, Natural Science Foundation of Guangdong Province, Overseas Expertise Introduction Project for Discipline Innovation, Guangzhou Municipal Health Commission, and Cancer Innovative Research Program of Sun Yat-sen University Cancer Center. TRANSLATION: For the Chinese translation of the abstract see Supplementary Materials section.


Assuntos
Anticorpos Monoclonais Humanizados , Quimiorradioterapia , Quimioterapia de Indução , Carcinoma Nasofaríngeo , Neoplasias Nasofaríngeas , Humanos , Pessoa de Meia-Idade , Masculino , Feminino , Carcinoma Nasofaríngeo/terapia , Carcinoma Nasofaríngeo/tratamento farmacológico , Adulto , China/epidemiologia , Neoplasias Nasofaríngeas/tratamento farmacológico , Neoplasias Nasofaríngeas/terapia , Quimiorradioterapia/métodos , Anticorpos Monoclonais Humanizados/uso terapêutico , Anticorpos Monoclonais Humanizados/efeitos adversos , Anticorpos Monoclonais Humanizados/administração & dosagem , Idoso , Cisplatino/uso terapêutico , Cisplatino/administração & dosagem , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Gencitabina , Desoxicitidina/análogos & derivados , Desoxicitidina/uso terapêutico , Desoxicitidina/administração & dosagem , Adulto Jovem , Adolescente , Intervalo Livre de Progressão
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