Objectives: To investigate the effects of dihydroartemisinin (DHA) combined with doxorubicin (DOX) on proliferation and apoptosis of triple-negative breast cancer cells and explore the underlying molecular mechanism.
Methods: MDA-MB-231 cells were treated with 50, 100 or 150 μmol/L DHA, 0.5 μmol/L DOX, or with 50 μmol/L DHA combined with 0.
Cell Stress Chaperones
February 2025
Background: Endoplasmic reticulum (ER) stress-associated apoptosis is involved in various liver diseases, including liver fibrosis, nonalcoholic fatty liver disease, and cirrhosis. Hepatocytes respond to ER stress by eliciting unfolded protein response (UPR) and enhancing autophagy. Autophagy is a pivotal mechanism for sustaining normal ER function, through degradation of damaged ER fragments and removal of abnormal protein aggregates in the ER lumen.
View Article and Find Full Text PDFBackground: The newly approved biologics and Janus kinase inhibitors (JAKi) for pediatric atopic dermatitis (AD) offer additional options for clinical treatment. However, the efficacy and safety differences compared to the first approved biologic, dupilumab, remain unclear. Therefore, a network meta-analysis was conducted to evaluate these differences and identify potentially superior agents.
View Article and Find Full Text PDFBackground: Patients with duchenne muscular dystrophy (DMD) have an increased risk of complications when they undergo sedation or general anesthesia. However, due to improvements in cardiopulmonary therapies during anesthetic care, patients with DMD are experiencing an unprecedented duration of survival. We performed a systematic analysis to assess the benefits and risks of pharmacological interventions for the management of anesthesia and sedation in DMD patients.
View Article and Find Full Text PDFBackground: Overactive bladder (OAB) is a common disorder in perimenopausal women, involving detrusor regulation by bladder neuro-immune interactions. While Suoquan Wan (SQW) has shown efficacy in alleviating OAB symptoms, its underlying mechanisms remain unclear.
Purpose: The aim of this study was to investigate the therapeutic effects of SQW on perimenopausal overactive bladder (OAB) and elucidate its underlying mechanisms in restoring bladder neuro-immune homeostasis.
Medicine (Baltimore)
December 2024
Background: This study estimates the research upon the potential worth of Ras association domain family member 1 A (RASSF1A) and short stature homeobox 2 (SHOX2) DNA methylation in lung cancer (LC) diagnosis.
Methods: Open-published research was searched through PubMed, EMBASE, the Cochrane Library, Web of Science, China National Knowledge Infrastructure, and Chinese Biology Medicine Literature Database. Data on true positives, false positives, false negatives, and true negatives were extracted.
China's sustained air quality improvement is hindered by unregulated ammonia (NH) emissions from inefficient nitrogen management in smallholder farming. Although the Chinese government is promoting a policy shift to large-scale farming, the benefits of this, when integrated with nitrogen management, remain unclear. Here we fill this gap using an integrated assessment, by combining geostatistical analysis, high-resolution emission inventories, farm surveys and air quality modeling.
View Article and Find Full Text PDFAlthough reactive nitrogen (Nr) emissions from food and energy production contribute to multi-dimensional environmental damages, integrated management of Nr is still lacking owing to unclear future mitigation potentials and benefits. Here, we find that by 2050, high-ambition compared to low-ambition N interventions reduce global ammonia and nitrogen oxide emissions by 21 and 22 TgN/a, respectively, equivalent to 40 and 52% of their 2015 levels. This would mitigate population-weighted PM2.
View Article and Find Full Text PDFNotoginseng saponin R1; ginsenosides Rg1, Re, Rb1, and Rd; the sum of the five saponins; and underground-part fresh weight (UPFW) of single plants were used as quality evaluation indices for Panax notoginseng (Burk.) F. H.
View Article and Find Full Text PDFSecondary inorganic aerosols play an important role in air pollution and climate change, and their formation modulates the atmospheric deposition of reactive nitrogen (including oxidized and reduced nitrogen), thus impacting the nitrogen cycle. Large-scale and long-term analyses of secondary inorganic aerosol formation based on model simulations have substantial uncertainties. Here we improve constraints on secondary inorganic aerosol formation using decade-long in situ observations of aerosol composition and gaseous precursors from multiple monitoring networks across the United States.
View Article and Find Full Text PDFThe advancement of Long-Read Sequencing (LRS) techniques has significantly increased the length of sequencing to several kilobases, thereby facilitating the identification of alternative splicing events and isoform expressions. Recently, numerous computational tools for isoform detection using long-read sequencing data have been developed. Nevertheless, there remains a deficiency in comparative studies that systemically evaluate the performance of these tools, which are implemented with different algorithms, under various simulations that encompass potential influencing factors.
View Article and Find Full Text PDFDespite traditional beliefs of orthologous genes maintaining similar functions across species, growing evidence points to their potential for functional divergence. C-repeat binding factors/dehydration-responsive element binding protein 1s (CBFs/DREB1s) are critical in cold acclimation, with their overexpression enhancing stress tolerance but often constraining plant growth. In contrast, a recent study unveiled a distinctive role of rice OsDREB1C in elevating nitrogen use efficiency (NUE), photosynthesis, and grain yield, implying functional divergence within the CBF/DREB1 orthologs across species.
View Article and Find Full Text PDFAim: Few studies have assessed the association between weight changes from childhood to adulthood and cardiometabolic factors in adulthood. The aim of this study was to explore the relationships between weight changes from childhood to adulthood and cardiometabolic factors in adulthood using national Chinese data.
Methods: We included 649 participants from the China Health and Nutrition Survey from 1989 to 2009 and divided them into four groups by their body mass index from 6 to 37 years of age.
The deep eutectic solvent (DES) has emerged in recent years as a valuable medium for converting CO into valuable chemicals because of its easy availability, stability, and safety, and its capability to dissolve carbon dioxide. CO valorization in DES has evolved rapidly over the past 20 years. As well as being used as solvents for acid/base-promoted CO conversion for the production of cyclic carbonates and carbamates, DESs can be used as reaction media for electrochemical CO reduction for formic acid and CO.
View Article and Find Full Text PDFBackground: The CRISPR/Cas systems have emerged as powerful tools in genome engineering. Recent studies highlighting the crucial role of transposable elements (TEs) have stimulated research interest in manipulating these elements to understand their functions. However, designing single guide RNAs (sgRNAs) that are specific and efficient for TE manipulation is a significant challenge, given their sequence repetitiveness and high copy numbers.
View Article and Find Full Text PDFObjective : This study aimed to investigate whether changes in carotid artery corrected flow time (ΔFTc bolus ) and carotid artery peak flow velocity respiratory variation (Δ V peak bolus ) induced by the fluid challenge could reliably predict fluid responsiveness in mechanically ventilated patients with a tidal volume < 8 mL/kg Predicted Body Weight while preserving spontaneous breathing. Methods : Carotid artery corrected flow time, Δ V peak, and hemodynamic data were measured before and after administration of 250 mL crystalloids. Fluid responsiveness was defined as a 10% or more increase in stroke volume index as assessed by noninvasive cardiac output monitoring after the fluid challenge.
View Article and Find Full Text PDFBackground: Hepatocellular carcinoma (HCC) is a common clinical condition with a poor prognosis and few effective treatment options. Potent anticancer agents for treating HCC must be identified. Epigenetics plays an essential role in HCC tumorigenesis.
View Article and Find Full Text PDFBaseline correction is necessary for the qualitative and quantitative analysis of samples because of the existence of background fluorescence interference in Raman spectra. The asymmetric least squares (ALS) method is an adaptive and automated algorithm that avoids peak detection operations along with other user interactions. However, current ALS-based improved algorithms only consider the smoothness configuration of regions where the signals are greater than the fitted baseline, which results in smoothing distortion.
View Article and Find Full Text PDFEnviron Sci Technol
September 2023
Ammonia (NH) is critical to the nitrogen cycle and PM formation, yet a great deal of uncertainty exists in its urban emission quantifications. Model-underestimated NH concentrations have been reported for cities, yet few studies have provided an explanation. Here, we explore reasons for severe WRF-Chem model underestimations of NH concentrations in Beijing in August 2018, including simulated gas-particle partitioning, meteorology, regional transport, and emissions, using spatially refined (3 km resolution) NH emission estimates in the agricultural sector for Beijing-Tianjin-Hebei and in the traffic sector for Beijing.
View Article and Find Full Text PDFGlobal food loss and waste (FLW) undermines the resilience and sustainability of food systems and is closely tied to the United Nation's Sustainable Development Goals on climate, resource use and food security. Here we reveal strong yet under-discussed interconnections between FLW and two other Sustainable Development Goals of Human Health and Life on Land via the nitrogen cycle. We find that eliminating global FLW in 2015 would have reduced anthropogenic NH emissions associated with food production by 11.
View Article and Find Full Text PDFStudies of cultured embryos have provided insights into human peri-implantation development. However, detailed knowledge of peri-implantation lineage development as well as underlying mechanisms remains obscure. Using 3D-cultured human embryos, herein we report a complete cell atlas of the early post-implantation lineages and decipher cellular composition and gene signatures of the epiblast and hypoblast derivatives.
View Article and Find Full Text PDFExcess reactive nitrogen (Nr), including nitrogen oxides (NO) and ammonia (NH), contributes strongly to fine particulate matter (PM) air pollution in Europe, posing challenges to public health. Designing cost-effective Nr control roadmaps for PM mitigation requires considering both mitigation efficiencies and implementation costs. Here we identify optimal Nr control pathways for Europe by integrating emission estimations, air quality modeling, exposure-mortality modeling, Nr control experiments and cost data.
View Article and Find Full Text PDFBackground: Patients who undergo gastrointestinal endoscopy often require propofol-based sedation combined with analgesics. At present, the efficacy and safety of esketamine as an adjunct to propofol for sedation during endoscopic procedures in patients remains controversial. Moreover, there is no universal agreement regarding the appropriate dose of esketamine supplementation.
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