Bongkrekic acid (BA) is a toxin with stable properties and no distinctive smell. It exists in common foods such as fermented edible grain products, potato products, spoiled tremella fuciformis and auricularia polytricha, as well as auricularia polytricha that has been soaked too long. It can easily cause food poisoning.
View Article and Find Full Text PDFAnthropogenic climate change is driving summer heat toward more humid conditions, accompanied by more frequent day-night compound heat extremes (high temperatures during both day and night). As the fast-warming and aging continent, Europe faces escalating heat-related health risks. Here, we projected future heat-related mortality in Europe using a distributed lag nonlinear model that incorporates humid heat and compound heat extremes, strengthened by a health risk-based definition of extreme heat and a scenario matrix integrating time-varying adaptation trajectories.
View Article and Find Full Text PDFActinoalloteichus caeruleus, the type species of the rare actinomycete genus Actinoalloteichus, was found to produce various classes of bioactive compounds including bipyridine, β-carboline and cyclolipopeptides. Although the chemistry of natural products from A. caeruleus has been well studied over the past two decades, the complete genomes of this talent species along with its secondary metabolic potential was poorly reported.
View Article and Find Full Text PDFSci China Life Sci
July 2025
The specific mechanisms of N-methyladenosine (mA) in castration-resistant prostate cancer (CRPC) remain incompletely understood. Wilms' tumor 1 and pyruvate kinase M2-like protein (WTAP) serve as a major regulatory factor of mA. However, whether it regulates CRPC through mA mechanisms is unclear.
View Article and Find Full Text PDFSci Bull (Beijing)
July 2025
Mol Psychiatry
April 2025
Injury responses in terminally differentiated cells such as neurons are tightly regulated by pathways aiding homeostatic maintenance. Cancer patients subjected to neuronal injury in brain radiation experience cognitive declines similar to those seen in primary neurodegenerative diseases. Numerous studies have investigated the effect of radiation in proliferating cells of the brain, yet the impact in differentiated, post-mitotic neurons, especially the structural and functional alterations remain largely elusive.
View Article and Find Full Text PDFFront Oncol
April 2025
Objective: This study provides a comprehensive bibliometric analysis of research trends in Positron Emission Tomography/Computed Tomography (PET/CT) applications for lymphoma, aiming to identify key contributors, emerging topics, and collaboration patterns within the field.
Methods: Data from the Web of Science Core Collection (2004-2024) were analyzed. Original articles and reviews in English on PET/CT in lymphoma staging, response assessment, or prognosis were included, while case reports, meeting abstracts, and editorials were excluded.
Chem Commun (Camb)
May 2025
An efficient method for the regioselective tetra-, tri-, di- and per-fluoroalkyl aminoxylation of unactivated and activated alkenes has been achieved with various fluorinated alkyl halides and OH-hydroxylamines. This developed photoredox-neutral protocol features versatile transformations to novel tetrafluoroethylene-containing compounds.
View Article and Find Full Text PDFJ Enzyme Inhib Med Chem
December 2025
Overactivation of the epidermal growth factor receptor (EGFR) is prevalent in various tumours, rendering it a promising target for cancer therapy, particularly in the treatment of non-small cell lung cancer (NSCLC). Although the first through third generations of EGFR tyrosine kinase inhibitors (TKIs) have demonstrated significant efficacy, the emergence of drug resistance continues to pose a challenge. Current research is now focused on fourth-generation EGFR-TKIs, which specifically target the EGFR harbouring the C797S mutation.
View Article and Find Full Text PDFActa Neuropathol Commun
March 2025
Cognitive impairment is a common and challenging side effect of cranial radiation therapy for brain tumors, though its precise mechanisms remain unclear. The mesocortical dopaminergic pathway, known to play a key role in cognitive function, is implicated in several neuropsychiatric disorders, yet its involvement in radiation-induced cognitive dysfunction is unexplored. Here, with using in vivo multi-electrode array recordings of both anesthetized and free-moving rats to monitor the firing activities of dopamine neurons in the ventral tegmental area (VTA) and local field potentials in both the prefrontal cortex (PFC) and VTA, as well as the immunofluorescence assays and western blotting, we report that cranial irradiation transiently altered VTA dopamine neuron firing patterns without affecting overall firing rates and led to sustained reductions in both "awake" and total dopamine neuron density.
View Article and Find Full Text PDFApplication of pear twig derived biochar and nitrogen fertilizer is strategic for addressing the challenges posed by copper pollution in soils. Their combined use aims to improve plant health and promote sustainable agricultural practices, which leads to better potato growth and quality. Therefore, this study was carried out to investigate the effects of different levels of pear twig biochar (B:0, B:3, B:5, B:7% w/w) combined with nitrogen fertilizer (N:0, N:150, N:200, N:250, N:300 mg kg) on morpho-physiological growth and copper uptake of potato cultivated in Cu polluted soil.
View Article and Find Full Text PDFJ Neural Transm (Vienna)
January 2025
This large-scale cross-sectional multicenter study aims to investigate the prevalence of sleep disorders among frontline nurses in China after the COVID-19 pandemic and to identify potential influencing factors contributing to these sleep disturbances. A total of 2065 frontline nurses from 27 provinces in China participated in an online survey conducted through the Wenjuan Xing platform. Data on demographic characteristics, work-related factors, and mental health assessments, including the Pittsburgh Sleep Quality Index (PSQI), Zung Self-Rating Anxiety Scale (SAS), and Self-Rating Depression Scale (SDS), were collected.
View Article and Find Full Text PDFTNBC has been recognized as the most highly aggressive breast cancer without chemotherapeutic drugs. A collection of oridonin hybrids consisting of conventional antitumor pharmacophores including nitrogen mustards and adamantane-1-carboxylic acid were synthesized by deletion or blockade of multiple hydroxyl groups and structural rearrangement. Compound 11a showed the most promising anti-TNBC activity with nearly 15-fold more potent antiproliferative effects than oridonin against MDA-MB-231 and HCC1806.
View Article and Find Full Text PDFSince 2019, the novel coronavirus (SARS-CoV-2) has caused significant morbidity and millions of deaths worldwide. The Coronavirus Disease 2019 (COVID-19), caused by SARS-CoV-2 and its variants, has further highlighted the urgent need for the development of effective therapeutic agents. Currently, the highly conserved and broad-spectrum nature of main proteases (M) renders them of great importance in the field of inhibitor study.
View Article and Find Full Text PDFCell Death Dis
August 2024
The metastasis-associated protein (MTA) family plays a crucial role in the development of breast cancer, a common malignancy with a high incidence rate among women. However, the mechanism by which each member of the MTA family contributes to breast cancer progression is poorly understood. In this study, we aimed to investigate the roles of MTA1, MTA3, and tripartite motif-containing 21 (TRIM21) in the proliferation, invasion, epithelial-mesenchymal transition (EMT), and stem cell-like properties of breast cancer cells in vivo and in vitro.
View Article and Find Full Text PDFDynamic crystals with directional deformations in response to external stimuli through molecular reconfiguration, are observed predominantly in certain organic crystals and metal complexes. Low-dimensional hybrid halides, resemble these materials due to the presence of strong hydrogen bonds between bulky organic moieties and inorganic units, whereas their dynamic behavior remains largely unexplored. Here we show that a one-dimensional hybrid halide (MV)BiBr (MV = methylviologen) undergoes an isosymmetric phase transition at hydrostatic pressure of 0.
View Article and Find Full Text PDFInt J Appl Earth Obs Geoinf
July 2024
BMC Pharmacol Toxicol
June 2024
Chalcones and dihydrochalcones (DHCs) are important bioactive natural products (BNPs) isolated from traditional Chinese medicine. In this study, 13 chalcones were designed with the inspiration of Loureirin, a DHC extracted from Resina Draconis, and synthesized by classical Claisen-Schmidt reactions. Afterwards the reduction reactions were carried out to obtain the corresponding DHCs.
View Article and Find Full Text PDFMol Cell Biochem
February 2025
Acute kidney injury (AKI) is one of the most common and severe clinical renal syndromes with high morbidity and mortality. Ferroptosis is a form of programmed cell death (PCD), is characterized by iron overload, reactive oxygen species accumulation, and lipid peroxidation. As ferroptosis has been increasingly studied in recent years, it is closely associated with the pathophysiological process of AKI and provides a target for the treatment of AKI.
View Article and Find Full Text PDFFerroptosis, a regulated form of cell death, is intricately linked to iron‑dependent lipid peroxidation. Recent evidence strongly supports the induction of ferroptosis as a promising strategy for treating cancers resistant to conventional therapies. A key player in ferroptosis regulation is ferroptosis suppressor protein 1 (FSP1), which promotes cancer cell resistance by promoting the production of the antioxidant form of coenzyme Q10.
View Article and Find Full Text PDFTo develop new anti-inflammatory agents with improved pharmaceutical profiles, a series of chalcone analogues were designed and synthesized. anti-inflammatory activity of these compounds was evaluated by screening their inhibitory effects on NO production in RAW264.7 cell lines.
View Article and Find Full Text PDFAlzheimer's disease (AD) is a neurodegenerative disorder characterized by a complex pathogenesis, which involves the formation of amyloid plaques and neurofibrillary tangles. Many recent studies have revealed a close association between ferroptosis and the pathogenesis of AD. Factors such as ferroptosis-associated iron overload, lipid peroxidation, disturbances in redox homeostasis, and accumulation of reactive oxygen species have been found to contribute to the pathological progression of AD.
View Article and Find Full Text PDFFerroptosis is a novel style of cell death, and studies have shown that ferroptosis is strongly associated with spinal cord injury (SCI). A large number of ferroptosis inhibitors have been reported, but so far no ferroptosis inhibitor has been used clinically. Therefore there is an urgent need to discover a better inhibitor of ferroptosis.
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