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1.
J Affect Disord ; 367: 333-341, 2024 Sep 02.
Article in English | MEDLINE | ID: mdl-39233245

ABSTRACT

BACKGROUND: Non-suicidal self-injury (NSSI) is increasingly prevalent among patients with bipolar disorder (BD), raising concerns in psychology and mental health. Investigating the incidence and factors associated with NSSI is crucial for developing prevention and intervention strategies. METHODS: NSSI behaviors were identified using the Ottawa Self-injury Inventory. The Clinically Useful Depression Outcome Scale supplemented with questions for the DSM-5 specifier of mixed features (CUDOS-M) and the Mini International Neuropsychiatric Interview (Hypo-)Manic Episode with Mixed Features-DSM-5 Module (MINI-M) were used to evaluate clinical symptoms. Non-parametric tests, chi-square tests, point-biserial correlation and logistic regression analyses were employed for the purposes of data analysis. RESULTS: The enrolled sample comprised 1044 patients with BD from 20 research centers across China. Out of 1044 individuals, 446 exhibited NSSI behaviors, with 101 of them being adolescents, leading to a prevalence of 78.3 % among adolescent patients. The most common methods for females and males were "cutting" (41.2 %) and "hitting" (34.7 %), respectively. By binary logistic regression analysis, young age, female, bipolar type II disorder, with suicidal ideation and mixed states, depressive symptoms and without family history of mental disorder were correlates of NSSI in patients with BD (P < 0.05). LIMITATIONS: As a cross-sectional study, causality between NSSI behaviors and associated factors cannot be established. Reporting and recall biases may occur due to self-rating scales and retrospective reports. CONCLUSION: Our study indicates a concerning prevalence of NSSI, particularly among young patients with BD in China. Future research should focus on understanding NSSI behaviors in this population and developing effective interventions.

2.
J Cancer Res Ther ; 20(4): 1109-1123, 2024 Aug 01.
Article in English | MEDLINE | ID: mdl-39206972

ABSTRACT

ABSTRACT: This expert consensus reviews current literature and provides clinical practice guidelines for the diagnosis and treatment of multiple ground glass nodule-like lung cancer. The main contents of this review include the following: ① follow-up strategies, ② differential diagnosis, ③ diagnosis and staging, ④ treatment methods, and ⑤ post-treatment follow-up.


Subject(s)
Consensus , Lung Neoplasms , Humans , Diagnosis, Differential , Disease Management , Lung Neoplasms/diagnosis , Lung Neoplasms/therapy , Lung Neoplasms/pathology , Multiple Pulmonary Nodules/diagnosis , Multiple Pulmonary Nodules/pathology , Multiple Pulmonary Nodules/therapy , Neoplasm Staging/standards , Practice Guidelines as Topic
3.
Psychol Res Behav Manag ; 17: 2865-2874, 2024.
Article in English | MEDLINE | ID: mdl-39104767

ABSTRACT

Background: Correctional officers face widespread workplace violence and the resulting overwork that can profoundly damage their physical and mental health. Purpose: This study aims to investigate the mediating role of overwork in the relationship between workplace violence and the manifestation of physical and mental health issues among correctional officers. Methods: This study enlisted 472 eligible participants. Cross-sectional data were obtained using the Chinese version of the Workplace Violence Scale (WVS), while the physical and mental health of correctional officers was evaluated through relevant scales. Analysis involved descriptive statistics, correlation analyses, and tests for mediation models. Results: The study found significant correlations between workplace violence, overwork, and various mental health variables (depression, anxiety, stress, suicidal ideation, and insomnia), with correlations ranging from 0.135 to 0.822 (p < 0.01). Mediation analysis revealed that workplace violence directly impacts correctional officers' physical and mental health (p < 0.001) and also has an indirect effect through overwork (p < 0.023). These findings underscore the substantial impact of workplace violence on the health of correctional officers, both directly and indirectly. Conclusion: Workplace violence and overwork significantly contribute to the physical and mental health challenges faced by correctional officers. Overwork acts as a mediator in the relationship between workplace violence and these health issues. The study suggests addressing workplace violence and mental health issues among correctional officers by increasing their numbers, improving the work environment, and implementing enhanced welfare policies.

4.
Inflammation ; 2024 Aug 06.
Article in English | MEDLINE | ID: mdl-39107569

ABSTRACT

BACKGROUND: Acute myocardial infarction (AMI) is a life-threatening event that is associated with RNA modification and programmed cell death (PCD). This study attempted to investigate the impacts of zinc finger CCCH domain-containing protein 13 (ZC3H13)-mediated N6-methyladenosine (m6A) on ferroptosis in AMI. METHODS: The infarcted areas and cardiac function were evaluated, and the expression level of ZC3H13 was measured in AMI rats that were induced by isoproterenol. Meanwhile, oxygen glucose deprivation (OGD) in vitro model was induced to investigate the alterations on inflammation, oxidative stress and ferroptosis. The m6A modification site of lncRNA93358 modified by ZC3H13 was predicted using bioinformatics, and the interaction between ZC3H13 and lncRNA93358 was verified using the dual-luciferase reporter assays. ZC3H13 was overexpressed and lncRNA93358 was silenced to study their regulatory role in cell death, inflammation, oxidative stress and ferroptosis in AMI. RESULTS: Significant decreased expression of ZC3H13 was observed in AMI rats, with impaired cardiac function, enhanced inflammation and oxidative stress. ZC3H13 targeted the modification site GGACC of lncRNA93358 and downregulated lncRNA93358. Silencing lncRNA93358 inhibited cell death, reduced the levels of inflammatory cytokines tumor necrosis factor (TNF)-α, interleukin (IL)-6 and IL-1ß, suppressed oxidative stress-related indicators (lactate dehydrogenase (LDH), reactive oxygen species (ROS), glutathione (GSH) and malondialdehyde (MDA), as well as downregulated ferroptosis-related acyl-CoA synthetase long chain family member 4 (ACSL4), prostaglandin-endoperoxide synthase 2 (PTGS2) and glutathione peroxidase 4 (GPX4). The effect of silencing lncRNA93358 was further enhanced by overexpression of ZC3H13. CONCLUSION: This study reveals the ZC3H13-mediated epigenetic RNA modification targeting lncRNA93358 and suggests that ZC3H13 overexpression may be a promising approach for AMI treatment.

5.
Materials (Basel) ; 17(15)2024 Jul 24.
Article in English | MEDLINE | ID: mdl-39124324

ABSTRACT

By reutilizing industrial byproducts, inorganic cementitious alkali-activated materials (AAMs) contribute to reduced energy consumption and carbon dioxide (CO2) emissions. In this study, coal gangue (CG) blended with ground granulated blast furnace slag (GGBFS) was used to prepare AAMs. The research focused on analyzing the effects of the GGBFS content and alkali activator (i.e., Na2O mass ratio and alkali modulus [SiO2/Na2O]) on the mechanical properties and microstructures of the AAMs. Through a series of spectroscopic and microscopic tests, the results showed that the GGBFS content had a significant influence on AAM compressive strength and paste fluidity; the optimal replacement of CG by GGBFS was 40-50%, and the optimal Na2O mass ratio and alkali modulus were 7% and 1.3, respectively. AAMs with a 50% GGBFS content exhibited a compact microstructure with a 28 d compressive strength of 54.59 MPa. Increasing the Na2O mass ratio from 6% to 8% promoted the hardening process and facilitated the formation of AAM gels; however, a 9% Na2O mass ratio inhibited the condensation of SiO4 and AlO4 ions, which decreased the compressive strength. Increasing the alkali modulus facilitated geopolymerization, which increased the compressive strength. Microscopic analysis showed that pore size and volume increased due to lower Na2O concentrations or alkali modulus. The results provide an experimental and theoretical basis for the large-scale utilization of AAMs in construction.

6.
SciBase Neurol ; 2(2)2024.
Article in English | MEDLINE | ID: mdl-39145143

ABSTRACT

This study investigates the role of histone tail modifications in Parkinson's disease (PD), emphasizing the epigenetic regulation of genes associated with the disease. PD primarily manifests in individuals over 60, suggesting that PD-causal genes remain dormant until later in life, influenced by environmental factors and epigenetic modifications. Histone modifications such as methylation, acetylation, phosphorylation, and ubiquitylation play crucial roles in gene expression regulation by altering chromatin structure or interacting with gene regulatory regions. Specifically, modifications on histones H2A, H2AX, H3, and H4 have been linked to PD. For instance, α-synuclein (α-SYN) aggregation, a hallmark of PD, is regulated by histone modifications like H3K27ac and H3K4me3, which enhance α-SYN expression and contribute to PD progression. Conversely, repressive marks like H3K9ac and H3K27me3 can mitigate PD risk by reducing α-SYN levels. Therapeutic strategies targeting these histone modifications, such as the use of GSK-J4 or vitamin C-treated neural stem cells, show potential in alleviating PD symptoms by modulating histone marks and gene expression. Understanding these epigenetic mechanisms offers promising avenues for developing novel treatments for PD.

7.
Huan Jing Ke Xue ; 45(8): 4529-4539, 2024 Aug 08.
Article in Chinese | MEDLINE | ID: mdl-39168673

ABSTRACT

Zhari Namco is situated in the alpine grassland belt of northwestern Xizang with a fragile ecological environment. As the third-largest lake in Xizang, there has been a long-term lack of research data concerning its basin water environment. In an effort to elucidate the surface water environment characteristics of the basin and the factors influencing them, an extensive investigation was conducted from August 2021 to June 2022, encompassing periods of high flow, low flow, and base flow. Further, the study also involved comprehensive assessments of the water chemistry characteristics and spatial-temporal variation in lake sampling sites of the basin that were not significant by using mathematical statistics, hydrochemical analysis, correlation analysis, and principal component analysis. The findings revealed the following: ① The water in the Zhari Namco Basin exhibited an alkaline nature, with dominant ionic compositions in the lake comprising Na+, SO42-, and Cl-, whereas the rivers were primarily characterized by Ca2+, HCO3-, and SO42-. ② The main pollutants exceeding established standards included sulfates, arsenic, chlorides, and total phosphorus. The study identified significant spatiotemporal variations in water quality. Temporally, the exceedance of sulfates, arsenic, and total phosphorus was most pronounced during high-flow periods, followed by that during low-flow and base flow periods, with chloride levels showing less temporal variation. Spatially, river water quality surpassed that of the lakes, with arsenic, total phosphorus, TDS, sulfate, chloride, K+, and Na+ concentrations in lakes 1 to 2 orders of magnitude higher than those in rivers. Water qualities exceeding the established standard were primarily found in the lake, with less spatial variations within the lake itself. ③ Hydrochemical processes within the basin were found to be primarily influenced by natural phenomena, including evaporation-concentration and rock weathering. Various elements entered the lakes via surface runoff, where they continuously accumulated under the influence of evaporation-concentration processes, ultimately leading to exceedances. ④ Temporal variations in water quality were primarily attributed to increased elemental loss and intensified evaporation during high-flow periods. The spatial discrepancies in water quality were predominantly a consequence of the differing hydrodynamic conditions between flowing water bodies and enclosed water bodies.

8.
J Psychol ; : 1-14, 2024 Aug 30.
Article in English | MEDLINE | ID: mdl-39212627

ABSTRACT

Machiavellianism is a personality trait that denotes cunning, manipulative ability, and a desire to gain power by any possible means. Machiavellianism is a subclinical form of psychopathy that has an impact on individual health, professional settings and social order. Machiavellians are more at risk of developing anxiety and depression; however, the underpinning mechanism has not been studied clearly. To avoid major mental health illnesses, it is critical to understand the psychological reasons, brain areas involved, and biochemical substrates for the development of Machiavellianism. This review will address the psychological, clinical and neural correlations of Machiavellianism, its impact on society, and highlight loopholes in comprehending the development of Machiavellianism.

9.
Redox Biol ; 75: 103297, 2024 Sep.
Article in English | MEDLINE | ID: mdl-39127015

ABSTRACT

Cardiovascular disease (CVD) is one of the leading causes of mortality in humans, and oxidative stress plays a pivotal role in disease progression. This phenomenon typically arises from weakening of the cellular antioxidant system or excessive accumulation of peroxides. This review focuses on a specialized form of oxidative stress-disulfide stress-which is triggered by an imbalance in the glutaredoxin and thioredoxin antioxidant systems within the cell, leading to the accumulation of disulfide bonds. The genesis of disulfide stress is usually induced by extrinsic pathological factors that disrupt the thiol-dependent antioxidant system, manifesting as sustained glutathionylation of proteins, formation of abnormal intermolecular disulfide bonds between cysteine-rich proteins, or irreversible oxidation of thiol groups to sulfenic and sulfonic acids. Disulfide stress not only precipitates the collapse of the antioxidant system and the accumulation of reactive oxygen species, exacerbating oxidative stress, but may also initiate cellular inflammation, autophagy, and apoptosis through a cascade of signaling pathways. Furthermore, this review explores the detrimental effects of disulfide stress on the progression of various CVDs including atherosclerosis, hypertension, myocardial ischemia-reperfusion injury, diabetic cardiomyopathy, cardiac hypertrophy, and heart failure. This review also proposes several potential therapeutic avenues to improve the future treatment of CVDs.


Subject(s)
Cardiovascular Diseases , Disulfides , Oxidative Stress , Humans , Cardiovascular Diseases/metabolism , Cardiovascular Diseases/etiology , Cardiovascular Diseases/pathology , Disulfides/metabolism , Animals , Reactive Oxygen Species/metabolism , Signal Transduction , Antioxidants/metabolism , Oxidation-Reduction , Thioredoxins/metabolism
10.
Ecotoxicol Environ Saf ; 284: 116902, 2024 Aug 21.
Article in English | MEDLINE | ID: mdl-39173224

ABSTRACT

Benzalkonium chloride (BAC) is a broad-spectrum antibacterial agent that possesses cleaning and bactericidal properties, but impact of BAC on wellbeing of aquatic organisms remains uncertain. Consequently, in this current study, we have examined the immunotoxic potential of BAC in zebrafish embryos, thus marking it as the pioneering effort in this field. According to the findings, zebrafish embryos exposed to BAC exhibited a decline in yolk area that varied with the concentration, along with a significant decrease in the count of neutrophils, macrophages, red blood cells, and thymus T-cells. We observed significantly up-regulated expression of immune-related signaling genes such as cxcl-c1c, il-8, tir4 and inf-γ, but expression of nf-κb was downregulated. In addition, we observed a marked reduction in the number of hematopoietic stem cells in zebrafish larvae after BAC exposure, which could be the result of oxidative stress-mediated apoptosis. We found that compared with the control group, the number of red blood cells in juvenile zebrafish in BAC-exposure group was significantly down-regulated, which could be attributed to hematopoietic stem cell defect. Astaxanthin restored immune cells and hematopoietic stem cells after BAC exposure, whereas Inhibitor of Wnt Response-1(IWR-1) restored neutrophils after BAC exposure. The research findings demonstrated that exposure to BAC displayed harmful effects on the development and immune system of zebrafish embryos. These effects might be associated with alterations in reactive oxygen species(ROS) levels and activation of the Wnt signaling pathway caused by BAC.

11.
Alpha Psychiatry ; 25(3): 413-420, 2024 Jun.
Article in English | MEDLINE | ID: mdl-39148597

ABSTRACT

Objective: Schizophrenia is often associated with volumetric reductions in cortices and expansions in basal ganglia, particularly the putamen. Recent genome-wide association studies have highlighted the significance of variants in the 3' regulatory region adjacent to the kinectin 1 gene (KTN1) in regulating gray matter volume (GMV) of the putamen. This study aimed to comprehensively investigate the involvement of this region in schizophrenia. Methods: We analyzed 1136 single-nucleotide polymorphisms (SNPs) covering the entire 3' regulatory region in 4 independent dbGaP samples (4604 schizophrenia patients vs. 4884 healthy subjects) and 3 independent Psychiatric Genomics Consortium samples (107 240 cases vs. 210 203 controls) to identify consistent associations. Additionally, we examined the regulatory effects of schizophrenia-associated alleles on KTN1 mRNA expression in 16 brain areas among 348 subjects, as well as GMVs of 7 subcortical nuclei in 38 258 subjects, and surface areas (SA) and thickness (TH) of the entire cortex and 34 cortical areas in 36 936 subjects. Results: The major alleles (f > 0.5) of 25 variants increased (ß > 0) the risk of schizophrenia across 2 to 5 independent samples (8.4 × 10-4 ≤ P ≤ .049). These schizophrenia-associated alleles significantly elevated (ß > 0) GMVs of basal ganglia, including the putamen (6.0 × 10-11 ≤ P ≤ 1.1 × 10-4), caudate (8.7 × 10-4 ≤ P ≤ 9.4 × 10-3), pallidum (P = 6.0 × 10-4), and nucleus accumbens (P = 2.7 × 10-5). Moreover, they potentially augmented (ß > 0) the SA of posterior cingulate and insular cortices, as well as the TH of frontal (pars triangularis and medial orbitofrontal), parietal (superior, precuneus, and inferior), and temporal (transverse) cortices, but potentially reduced (ß < 0) the SA of the whole, frontal (medial orbitofrontal), and temporal (pole, superior, middle, and entorhinal) cortices, as well as the TH of rostral middle frontal and superior frontal cortices (8.9 × 10-4 ≤ P ≤ .050). Conclusion: Our findings identify significant and functionally relevant risk alleles in the 3' regulatory region adjacent to KTN1, implicating their crucial roles in the development of schizophrenia.

12.
Zhong Nan Da Xue Xue Bao Yi Xue Ban ; 49(5): 810-817, 2024 May 28.
Article in English, Chinese | MEDLINE | ID: mdl-39174895

ABSTRACT

With the rapid development of traditional Chinese medicine and the continuous discovery of various anticancer effects of salidroside (sal), it is known that sal inhibits tumor proliferation, invasion and migration by inducing apoptosis and autophagy, regulating the cell cycle, modulating the tumor microenvironment, and controlling cancer-related signaling pathways and molecules. The microRNA (miRNA)-mRNA signaling axis can regulate the expression of target mRNAs by altering miRNA expression, thereby affecting the growth cycle, proliferation, and metabolism of cancer cells. Studies have shown that sal can influence the occurrence and progression of various malignant tumors through the miRNA-mRNA signaling axis, inhibiting the progression of lung cancer, gastric cancer, and nasopharyngeal carcinoma, with a notable time and dose dependence in its antitumor effects. Summarizing the specific mechanism of sal regulating miRNA-mRNA signaling axis to inhibit tumors in recent years can provide a new theoretical basis, diagnosis, and therapeutic methods for the research on prevention and treatment of tumors.


Subject(s)
Glucosides , MicroRNAs , Phenols , RNA, Messenger , Signal Transduction , Glucosides/pharmacology , Glucosides/therapeutic use , Humans , MicroRNAs/genetics , MicroRNAs/metabolism , Signal Transduction/drug effects , Phenols/pharmacology , RNA, Messenger/genetics , RNA, Messenger/metabolism , Cell Proliferation/drug effects , Apoptosis/drug effects , Stomach Neoplasms/genetics , Stomach Neoplasms/drug therapy , Stomach Neoplasms/metabolism , Stomach Neoplasms/pathology , Neoplasms/drug therapy , Neoplasms/genetics , Lung Neoplasms/drug therapy , Lung Neoplasms/genetics , Lung Neoplasms/metabolism , Lung Neoplasms/pathology , Nasopharyngeal Neoplasms/genetics , Nasopharyngeal Neoplasms/drug therapy , Nasopharyngeal Neoplasms/metabolism , Nasopharyngeal Neoplasms/pathology , Tumor Microenvironment/drug effects , Gene Expression Regulation, Neoplastic/drug effects , Antineoplastic Agents, Phytogenic/pharmacology , Antineoplastic Agents, Phytogenic/therapeutic use , Nasopharyngeal Carcinoma/drug therapy , Nasopharyngeal Carcinoma/genetics , Nasopharyngeal Carcinoma/metabolism , Nasopharyngeal Carcinoma/pathology , Animals
13.
Respirology ; 2024 Aug 28.
Article in English | MEDLINE | ID: mdl-39197870

ABSTRACT

BACKGROUND AND OBJECTIVE: Radiofrequency ablation (RFA) is an emerging treatment of lung cancer, yet it is accompanied by certain safety concerns and operational limitations. This first multi-centre, large-scale clinical trial aimed to investigate the technical performance, efficacy and safety of an innovative transbronchial RFA system for lung tumours. METHODS: The study enrolled patients with malignant lung tumours who underwent transbronchial RFA using an automatic saline microperfusion system between January 2021 and December 2021 across 16 medical centres. The primary endpoint was the complete ablation rate. The performance and safety of the technique, along with the 1-year survival rates, were evaluated. RESULTS: This study included 126 patients (age range: 23-85 years) with 130 lung tumours (mean size: 18.77 × 14.15 mm) who had undergone 153 transbronchial RFA sessions, with a technique success rate of 99.35% and an average ablation zone size of 32.47 mm. At the 12-month follow-up, the complete ablation rate and intrapulmonary progression-free survival rates were 90.48% and 88.89%, respectively. The results of patients with ground-glass nodules (GGNs) were superior to those of the patients with solid nodules (12-month complete ablation rates: solid vs. pure GGN vs. mixed GGN: 82.14% vs. 100% vs. 96.08%, p = 0.007). No device defects were reported. Complications such as pneumothorax, haemoptysis, pleural effusion, pulmonary infection and pleural pain were observed in 3.97%, 6.35%, 8.73%, 11.11% and 10.32% of patients, respectively. Two subjects died during the follow-up period. CONCLUSION: Transbronchial RFA utilizing an automatic saline microperfusion system is a viable, safe and efficacious approach for the treatment for lung tumours, particularly for patients with GGNs.

14.
Clin Psychol Psychother ; 31(4): e3023, 2024.
Article in English | MEDLINE | ID: mdl-38978207

ABSTRACT

OBJECTIVE: This study aims to assess the clinical effectiveness of combining mindfulness-based stress reduction (MBSR) with exercise intervention in improving anxiety, depression, sleep quality and mood regulation in patients with non-small cell lung cancer (NSCLC). METHODS: A total of 60 patients with NSCLC who had not received surgical treatment were selected using convenience sampling and divided into an intervention group and control group, with 30 patients in each group. The control group received conventional psychological nursing care, whereas the intervention group received a combination of MBwSR and exercise therapy. Before the intervention, a questionnaire was completed to collect the basic data of the two groups. Further questionnaires were administered at 6 and 8 weeks after treatment to assess anxiety, depression, sleep quality and other items included in the five-item Brief Symptom Rating Scale (BSRS-5). RESULTS: No significant differences between the intervention and control groups were identified in terms of personal and clinical characteristics (p > 0.05). No significant differences were determined in the BSRS-5, Self-Rating Anxiety Scale (SAS), Self-Rating Depression Scale (SDS) or Pittsburgh Sleep Quality Index (PSQI) scores between the intervention and control groups before the intervention. However, 6 and 8 weeks after the intervention, scores were significantly lower in both groups (p < 0.001). Significant differences in the BSRS-5, SAS, SDS and PSQI scores were identified between the two groups at different time points (p < 0.001). CONCLUSION: The combination of MBSR and exercise intervention demonstrated improvements in anxiety, depression, sleep quality and BSRS-5 scores in patients with NSCLC.


Subject(s)
Carcinoma, Non-Small-Cell Lung , Exercise Therapy , Lung Neoplasms , Mindfulness , Stress, Psychological , Humans , Mindfulness/methods , Female , Male , Carcinoma, Non-Small-Cell Lung/psychology , Carcinoma, Non-Small-Cell Lung/therapy , Middle Aged , Lung Neoplasms/psychology , Lung Neoplasms/therapy , Exercise Therapy/methods , Exercise Therapy/psychology , Stress, Psychological/therapy , Stress, Psychological/psychology , Treatment Outcome , Aged , Surveys and Questionnaires , Adult , Sleep Quality , Combined Modality Therapy , Psychological Well-Being
15.
Inorg Chem ; 63(31): 14313-14324, 2024 Aug 05.
Article in English | MEDLINE | ID: mdl-39052493

ABSTRACT

Nonstoichiometric lead oxides play a key role in the formation and cycling of the positive electrodes in a lead acid battery. These phases have been linked to the underutilization of the positive active material but also play a key role in the battery's cycle life, providing interparticle adhesion and the connection to the underlying lead grid. Similar phases have previously been identified by mass loss or color change during thermal annealing of PbO2 to PbO, suggesting that at least two intermediate PbOx phases exist. Using multiple, in situ analysis techniques (powder diffraction, X-ray absorption, X-ray photoelectron spectroscopy) and ex situ nuclear magnetic resonance measurements, the structural conversion and changes in the lead oxidation state were identified during this process. Isolation of the PbOx phases enabled confirmation of Pb3O5 and Pb2O3 by diffraction and the first 207Pb NMR measurement of these intermediates. The thermodynamic and kinetic stability of these intermediates and other reported polymorphs were determined by density functional theory, providing key insight into their origins and variation of PbOx structures found in previous studies.

16.
Org Lett ; 26(30): 6449-6453, 2024 Aug 02.
Article in English | MEDLINE | ID: mdl-39037910

ABSTRACT

Herein, we report a visible-light-induced iridium-promoted direct bifunctionalization of 3-butenoic acid with bromodifluoromethyl heteroarylsulfones. This methodology enables the concurrent introduction of difluoromethyl heteroarylsulfone and bromine groups into 3-butenoic acid under mild reaction conditions. Various α-substituted 3-butenoic acids and bromodifluoromethyl heteroarylsulfones were found to be compatible, yielding the corresponding products in moderate to good yields. This method opens a new route for the synthesis of fluorocarboxylic acid derivatives.

17.
Article in English | MEDLINE | ID: mdl-39021186

ABSTRACT

Cancer is the second leading cause of death globally. Despite some successes, conventional cancer treatments are insufficient to address the growing problem of drug resistance in tumors and to achieve efficient treatment outcomes. Therefore, there is an urgent need to explore new therapeutic options. Ferroptosis, a type of iron- and reactive oxygen species-dependent regulated cell death, has been closely associated with cancer development and progression. Non-coding RNAs (ncRNAs) are a class of RNAs that do not code for proteins, and studies have demonstrated their involvement in the regulation of ferroptosis in cancer. This review aims to explore the molecular regulatory mechanisms of ncRNAs involved in ferroptosis in cancer and to emphasize the feasibility of ferroptosis and ncRNAs as novel therapeutic strategies for cancer. We conducted a systematic and extensive literature review using PubMed, Google Scholar, Web of Science, and various other sources to identify relevant studies on ferroptosis, ncRNAs, and cancer. A deeper understanding of ferroptosis and ncRNAs could facilitate the development of new cancer treatment strategies.

18.
Nutrients ; 16(14)2024 Jul 10.
Article in English | MEDLINE | ID: mdl-39064656

ABSTRACT

The efficacy of functional lipids with antioxidant properties in reducing cardiovascular risk has not been consistent. Randomized controlled trials (RCTs) reporting estimates for the effects of antioxidant functional lipid supplementations on cardiometabolic risk factors were searched up to 1 May 2024. Overall, antioxidant lipid supplementations, compared with placebo, had favorable effects on systolic blood pressure (lycopene: -1.95 [-3.54, -0.36] mmHg), low-density lipoprotein cholesterol (n6 fatty acid: -0.39 [-0.71, -0.06] mmol/L; astaxanthin: -0.11 [-0.21, -0.01] mmol/L), high-density lipoprotein cholesterol (n3 fatty acid: 0.20 [0.13, 0.27] mmol/L; n6 fatty acid: 0.08 [0.01, 0.14] mmol/L; astaxanthin: 0.13 [0.05, 0.21] mmol/L), total cholesterol (n6 fatty acid: -0.24 [-0.37, -0.11] mmol/L; astaxanthin: -0.22 [-0.32, -0.12] mmol/L; beta-carotene: -0.13 [-0.23, -0.04] mmol/L), triglyceride (n3 fatty acid: -0.37 [-0.47, -0.28] mmol/L; astaxanthin: -0.46 [-0.83, -0.10] mmol/L), and fasting blood insulin (astaxanthin: -2.66 [-3.98, -1.34] pmol/L). The benefits of antioxidant lipid supplementations appeared to be most evident in blood pressure and blood lipids in participants with different cardiometabolic health statuses. Notably, n9 fatty acid increased triglyceride and hemoglobin A1C in the total population, which increases CVD risk. Antioxidant lipid supplementations ameliorate cardiometabolic risk factors, while their effect may depend on type and cardiometabolic health status. Long-term RCTs are needed to corroborate risk-benefit ratios across different antioxidant functional lipid supplementation settings.


Subject(s)
Antioxidants , Cardiovascular Diseases , Dietary Supplements , Heart Disease Risk Factors , Lipids , Humans , Antioxidants/administration & dosage , Cardiovascular Diseases/prevention & control , Lipids/blood , Randomized Controlled Trials as Topic , Blood Pressure/drug effects , Male , Female , Middle Aged , Xanthophylls
19.
Pharmaceutics ; 16(7)2024 Jul 05.
Article in English | MEDLINE | ID: mdl-39065602

ABSTRACT

Optimizing the delivery and penetration of nano-sized drugs within liver cancer sites, along with remodeling the tumor microenvironment, is crucial for enhancing the efficacy of chemotherapeutic agents. For this study, a platelet (PLT)-mediated nanodrug delivery system (DASA+ATO@PLT) was developed to improve the effectiveness of chemotherapy. This system delivers nano-sized dasatinib and atovaquone specifically to liver tumor sites and facilitates intra-tumoral permeation upon release. Through JC-1, immunohistochemistry, and DNA damage analyses, the therapeutic effect of DASA+ATO@PLT was assessed. In vitro simulation and intravital imaging were carried out to determine the accumulation of dasatinib and atovaquone in liver tumor sites. The experiment demonstrated the accumulation of dasatinib and atovaquone in tumor sites, followed by deep permeation in the tumor microenvironment with the assistance of PLTs, while simultaneously revealing the ability of DASA+ATO@PLT to remodel the liver cancer microenvironment (overcoming hypoxia) and enhance chemotherapeutic efficacy. This system utilizes the natural tumor recognition ability of PLTs and enhances the chemo-immunotherapeutic effect through targeted delivery of nano-chemotherapeutic drugs to the tumor, resulting in effective accumulation and infiltration. The PLT-mediated nanodrug delivery system serves as a "Trojan horse" to carry therapeutic drugs as cargo and deliver them to target cells, leading to favorable outcomes.

20.
Chem Sci ; 15(26): 10214-10220, 2024 Jul 03.
Article in English | MEDLINE | ID: mdl-38966364

ABSTRACT

Selective recognition and enrichment of fullerenes (e.g., C60 and C70) remains challenging due to the same diameter and geometrical similarity. Herein, we report a hexagonal anthracene-based nanotube (1) through a one-pot Suzuki-Miyaura cross-coupling reaction. With anthracene-based side walls and pyridine linkers, 1 features a nano-scale tubular cavity measuring 1.2 nm in diameter and 0.9 nm in depth, along with pH-responsive properties. Interestingly, the electron-rich 1 shows high binding affinity (K a ≈ 106 M-1) and selectivity (K s ≈ 140) to C70 over C60 in toluene, resulting from their different contribution of π-π interactions with the host. The protonation of 1 simultaneously alters the electronic properties within the nanotube, resulting in the release of the fullerene guests. Lastly, the selective recognition and pH stimuli-responsive properties of the nanotube have been utilized to enrich C70 from its low-content mixtures of fullerenes in chloroform.

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