Objectives: Osteosarcoma is the most common malignant bone tumor in children and adolescents, characterized by a high potential for proliferation and metastasis. Patients with osteosarcoma who have distant metastases generally have a poor prognosis. Challenges in treatment include incomplete resection of tumor and chemotherapy resistance, with no effective cure currently available.
View Article and Find Full Text PDFPurpose: We retrospectively researched the treatment outcome of proton beam therapy (PBT) and assessed its efficacy for inoperable locally advanced pancreatic cancer (LAPC) at our institution.
Methods And Materials: Fifty-four patients (28 men and 26 women, median age 67 years ranging from 40-88 years) were diagnosed with unresectable stage III LAPC and administered PBT from April 2009 to March 2020. Patients who could not complete PBT, had new distant metastases during the treatment, or did not have enough follow-up time were excluded from this study.
Spatial proteomics is a multidimensional technique that studies the spatial distribution and function of proteins within cells or tissues across both spatial and temporal dimensions. This field multidimensionally reveals the complex structure of the human proteome, including the characteristics of protein spatial distribution, dynamic protein translocation, and protein interaction networks. Recently, as a crucial method for studying protein spatial localization, spatial proteomics has been applied in the clinical investigation of various diseases.
View Article and Find Full Text PDFBackground: Cancer-associated fibroblasts, as a major component of the tumor microenvironment, have been shown to exhibit protumorigenic effects in pancreatic ductal adenocarcinoma. Moreover, cancer-associated fibroblasts-derived exosomes have been reported to promote tumor development, but exact mechanisms have not been elucidated. The purpose of this study was to investigate the processes by which exosomes generated from cancer-associated fibroblasts promote tumor growth.
View Article and Find Full Text PDFThe composition and cellular heterogeneity of the corpus cavernosum (CC) microenvironment have been characterized, but the spatial heterogeneity at the molecular level remains unexplored. In this study, we integrate single-cell RNA sequencing (scRNA-seq) and spatial transcriptome sequencing to comprehensively chart the spatial cellular landscape of the human and rat CC under normal and disease conditions. We observe differences in the proportions of cell subtypes and marker genes between humans and rats.
View Article and Find Full Text PDFEcotoxicol Environ Saf
October 2024
In recent years, the environmental impact of microplastics (MPs) and antibiotics (ATs) as pollutants cannot be ignored. In order to evaluate the carrier effect of MPs in the aqueous environment, three MPs, polyamide (PA), polyethylene (PE) and polyethylene terephthalate (PET), were selected in this study, and their structures were analyzed by means of characterization. A preliminary description of their interactions with sulfamonomethoxine was carried out by adsorption kinetics and isotherm fitting.
View Article and Find Full Text PDFThe cognitive decline associated with chronic metabolic disease diabetes has garnered extensive scrutiny, yet its pathogenesis remains incompletely understood, and the advancement of targeted therapeutics has posed a persistent challenge. Ferroptosis, a novel form of cell death characterized by intracellular lipid peroxidation and iron overload, has recently emerged as a significant factor. Numerous contemporary studies have corroborated that ferroptosis within the neurovascular unit is intimately associated with the onset of diabetes-induced cognitive impairment.
View Article and Find Full Text PDFBackground: Point-of-care (PoC) hepatitis B virus (HBV) DNA viral load (VL) assays represent an alternative to laboratory-based standard-of-care (SoC) VL assays to accelerate diagnosis and treatment. We evaluated the impact of using PoC versus SoC approaches on the uptake of VL testing, treatment, and turnaround times from testing to treatment across the HBV care cascade.
Methods: We searched 5 databases, 6 conference websites, and contacted manufacturers for unpublished reports, for articles with or without a comparator (SoC VL testing), and had data on the uptake of VL testing, treatment, or turnaround times between hepatitis B surface antigen (HBsAg) testing, VL testing, and treatment in the cascade.
Vegetation restoration measures have been increasingly employed to alleviate rocky desertification in karst ecosystems. However, the comprehensive effects of these interventions on soil properties and soil organic carbon (SOC) remain poorly understood. Herein, we gathered 644 paired observations from 68 studies and conducted a meta-analysis to quantify the performance of different vegetation restoration measures including moss (MS), grassland (GL), cash crop (CP), shrub (SH), and secondary forest (SF) through soil properties and SOC.
View Article and Find Full Text PDFDi (2-ethylhexyl) phthalate (DEHP), an artificially synthetic plasticizer, is a widespread environmental endocrine disruptor, which has raised substantial concern among the public about its potential reproductive toxicity effects. Taking large amounts of DEHP disrupts the normal functioning of the ovaries, however, the toxicological effects and the mechanisms by which DEHP impairs fetal folliculogenesis remain poorly understood. Our research aims to elucidate the associations between utero exposure to DEHP and fetal folliculogenesis in offspring.
View Article and Find Full Text PDFAngew Chem Int Ed Engl
September 2024
Regulating chemical drug's responsiveness to gamma radiation is crucial for achieving better therapeutic effects in cancer treatment. Most research focused on thermodynamic chemical structure design, while little attention was paid to kinetic regulate strategy, which possesses greater universality and security. In this study, we achieved a kinetic-based regulate strategy of gamma radiation reaction, through the construction of microphase environment during polymerization of polytelluoxane (PTeO).
View Article and Find Full Text PDFWound healing is a complex process and reuires a long repair process. Poor healing effect is normally a challenge for wound healing. Designing sponge dressings with drug-assisted therapy, good breathability, and multiple functional structures effectively promotes wound healing.
View Article and Find Full Text PDFPhagocytosis of () followed by its integration into the matured lysosome is critical in the host defense against tuberculosis. How escapes this immune attack remains elusive. In this study, we unveiled a novel regulatory mechanism by which SIRT7 regulates cytoskeletal remodeling by modulating RAC1 activation.
View Article and Find Full Text PDFObjectives: Our study aimed to investigate the correlations between radiomics-based assessment and outcomes, including positive aortic remodeling (PAR), reintervention for dissection at 1 year, and overall survival, in patients with Type B aortic dissection (TBAD) who underwent thoracic endovascular aortic repair (TEVAR).
Methods: This was a single-center, retrospective, cohort study. The cohort comprised 104 patients who had undergone TEVAR of TBAD in our institution between January 2010 and October 2022.
Background: Parkinson's disease (PD) is a prevalent disorder of the central nervous system, marked by the degeneration of dopamine (DA) neurons in the ventral midbrain. In the pathogenesis of PD, inflammation hypothesis has been concerned. This study aims to investigate clinical indicators of peripheral inflammation in PD patients and to explore the diagnostic value of neutrophil-to-lymphocyte ratio (NLR), albumin-to-fibrinogen ratio (AFR), and lymphocyte-to-monocyte ratio (LMR) in assessing PD risk.
View Article and Find Full Text PDFDaqu is usually produced in an open environment, which makes its quality unstable. The microbial community of Daqu largely determines its quality. Therefore, in order to improve the fermentation characteristics of Daqu, samples were collected from Jinsha County (MT1), Xishui County (MT2), and Maotai Town (MT3) in Guizhou Province to explore the microbial diversity of Daqu and its impact on Daqu's metabolites.
View Article and Find Full Text PDFThe overexpression of polyamines in tumor cells contributes to the establishment of immunosuppressive microenvironment and facilitates tumor growth. Here, it have ingeniously designed multifunctional copper-piceatannol/HA nanopills (Cu-Pic/HA NPs) that effectively cause total intracellular polyamines depletion by inhibiting polyamines synthesis, depleting intracellular polyamines, and impairing polyamines uptake, resulting in enhanced pyroptosis and cuproptosis, thus activating a powerful immune response to achieve anti-tumor therapy. Mitochondrial dysfunction resulting from overall intracellular polyamines depletion not only leads to the surge of copper ions in mitochondria, thereby causing the aggregation of toxic proteins to induce cuproptosis, but also triggers the accumulation of reactive oxygen species (ROS) within mitochondria, which further upregulates the expression of zDHHC5 and zDHHC9 to promote the palmitoylation of gasdermin D (GSDMD) and GSDMD-N, ultimately inducing enhanced pyroptosis.
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