Publications by authors named "Gu JiaMing"

Article Synopsis
  • Cyclization can improve the properties of umami peptides, and this study is the first to explore cyclic forms of these peptides.
  • Researchers generated cyclic and linear peptide structures and analyzed their interactions with umami receptors, identifying three promising candidates through docking and clustering.
  • Sensory evaluation showed that cyclization significantly enhanced the umami intensity of one peptide (DPLRGGY), while another (RGEPNND) did not benefit, with molecular analysis revealing structural changes as key factors in these differences.
View Article and Find Full Text PDF

Purpose: This study explores the correlation between sleep duration and cardiovascular disease (CVD) among middle-aged and older adults in China. Furthermore, we aim to investigate the association between sleep duration and incident CVD in this population, while assessing potential variations across different age and gender subgroups.

Methods: Utilizing data from the nationwide prospective survey of the China Health and Retirement Longitudinal Study (CHARLS) conducted in 2011, 2013, 2015, and 2018, involving 17,596 participants aged 45 years and above, we employed Cox proportional hazards regression models.

View Article and Find Full Text PDF

Background: The pathogenesis of Alzheimer's disease (AD) is complex. Recent research suggests that AD patients have early disorders in brain cholesterol metabolism. Cholesterol and its derivatives accumulate in neurons, leading to p-Tau overproduction and synaptic dysfunction, initiating AD progression.

View Article and Find Full Text PDF

Light-to-electricity conversion is crucial for energy harvesting and photodetection, requiring efficient electron-hole pair separation to prevent recombination. Traditional junction-based mechanisms using built-in electric fields fail in nonbarrier regions. Homogeneous material harvesting under a photovoltaic effect is appealing but is only realized in noncentrosymmetric systems via a bulk photovoltaic effect.

View Article and Find Full Text PDF

Endothelial-to-mesenchymal transition (EndMT) is a key driver of atherosclerosis. Aerobic glycolysis is increased in the endothelium of atheroprone areas, accompanied by elevated lactate levels. Histone lactylation, mediated by lactate, can regulate gene expression and participate in disease regulation.

View Article and Find Full Text PDF

Owing to the outstanding properties provided by nontrivial band topology, topological phases of matter are considered as a promising platform towards low-dissipation electronics, efficient spin-charge conversion, and topological quantum computation. Achieving ferroelectricity in topological materials enables the non-volatile control of the quantum states, which could greatly facilitate topological electronic research. However, ferroelectricity is generally incompatible with systems featuring metallicity due to the screening effect of free carriers.

View Article and Find Full Text PDF

To assess the therapeutic potential of human umbilical cord mesenchymal stem cells (hUCMSCs) combined with porcine small intestinal submucosa (SIS) on full-thickness skin injuries in rats. We established full-thickness skin injury models in Sprague-Dawley rats, dividing them into blank control, SIS, hUCMSCs and hUCMSCs combined with SIS. We monitored wound healing, scores and area, and analyzed inflammatory cells, microvessel density and collagen fibers after 12 days.

View Article and Find Full Text PDF
Article Synopsis
  • Human hematopoiesis, the formation of blood cells, begins in the yolk sac and evolves through different sites and stages during development, but the underlying mechanisms are not well understood.
  • Researchers analyzed the transcriptomes of human hematopoietic stem/progenitor cells (HSPCs) from various developmental stages, revealing significant differences in their intrinsic properties like metabolism and self-renewal capabilities.
  • They identified gene regulatory networks (GRNs) that control essential functions of HSCs, which can enhance HSC functions when regulators from these networks are introduced into HSPCs derived from human pluripotent stem cells.
View Article and Find Full Text PDF

Transport probes the motion of quasi-particles in response to external excitations. Apart from the well-known electric and thermoelectric transport, acoustoelectric transport induced by traveling acoustic waves has rarely been explored. Here, by adopting hybrid nanodevices integrated with piezoelectric substrates, we establish a simple design of acoustoelectric transport with gate tunability.

View Article and Find Full Text PDF

Background: Human umbilical cord mesenchymal stem cells (UC-MSCs) are one of the most extensively researched stem cell types due to their potential for multi-lineage differentiation, secretion of regenerative factors, modulations of immunological activities, and the release of regenerative substances and influence immunological processes. Since UC-MSCs must be cultivated on a large scale for clinical use, selecting the appropriate storing passage, such as the usage-based passage of UC-MSCs, is critical for long-term autologous or allogeneic usage. Long-term cultivation of stem cells, on the other hand, causes them to lose their pluripotent differentiation capacity.

View Article and Find Full Text PDF

Aspartic acid (D) and glutamic acid (E) play vital roles in the umami peptides. To understand their exact mechanism of action, umami peptides were collected and cut into 1/2/3/4 fragments. Connecting D/E to the N/C-termini of the fragments formed D/E consensus effect groups (DEEGs), and all fragments containing DEEG were summarized according to the ratio and ranking obtained in the above four situations.

View Article and Find Full Text PDF

Emergency myelopoiesis (EM) is essential in immune defense against pathogens for rapid replenishing of mature myeloid cells. During the EM process, a rapid cell-cycle switch from the quiescent hematopoietic stem cells (HSCs) to highly proliferative myeloid progenitors (MPs) is critical. How the rapid proliferation of MPs during EM is regulated remains poorly understood.

View Article and Find Full Text PDF
Article Synopsis
  • * Routes using natural gas liquids (NGLs) produce lower carbon footprints than those derived from oil or coal, highlighting the importance of route selection in emissions.
  • * In China, carbon emissions could rise dramatically by 2030, with possible reductions through low-carbon projects; policies for sustainable development in the olefin industry are proposed.
View Article and Find Full Text PDF

Inflammation-driven endothelial dysfunction is the major initiating factor in atherosclerosis, while the underlying mechanism remains elusive. Here, we report that the non-canonical stimulator of interferon genes (STING)-PKR-like ER kinase (PERK) pathway was significantly activated in both human and mice atherosclerotic arteries. Typically, STING activation leads to the activation of interferon regulatory factor 3 (IRF3) and nuclear factor-kappa B (NF-B)/p65, thereby facilitating signals and inflammation.

View Article and Find Full Text PDF

Background: Senescence is a series of degenerative changes in the structure and physiological function of an organism. Whether JPX (just proximal to XIST)-a newly identified age-related noncoding RNA by us-is associated with atherosclerosis is still unknown. Our study was to investigate the role of JPX and provide insights into potential therapies targeting atherosclerosis.

View Article and Find Full Text PDF

This study aimed to investigate the mechanism of Psoraleae Fructus in improving the learning and memory ability of APP/PS1 mice by serum metabolomics, screen the differential metabolites of Psoraleae Fructus on APP/PS1 mice, and reveal its influence on the metabolic pathway of APP/PS1 mice. Thirty 3-month-old APP/PS1 mice were randomly divided into a model group and a Psoraleae Fructus extract group, and another 15 C57BL/6 mice of the same age were assigned to the blank group. The learning and memory ability of mice was evaluated by the Morris water maze and novel object recognition tests, and metabolomics was used to analyze the metabolites in mouse serum.

View Article and Find Full Text PDF

In the field of food, the sensory evaluation of food still relies on the results of manual sensory evaluation, but the results of human sensory evaluation are not universal, and there is a problem of speech fraud. This work proposed an electroencephalography (EEG)-based analysis method that effectively enables the identification of umami/non-umami substances. First, the key features were extracted using percentage conversion, standardization, and significance screening, and based on these features, the top four models were selected from 19 common binary classification algorithms as submodels.

View Article and Find Full Text PDF

In order to explore the catalytic effect of different Lewis acid sites (LASs) in the CO cycloaddition reaction, different secondary building units and N-rich organic ligand 4,4',4″--triazine-1,3,5-triyltri--aminobenzoate were assembled to construct six reported MOF materials: [Cu(tatab)(HO)]·8DMF·9HO (), [Cu(tatab)(HO)]·7.5HO (), [ZnO(tatab)]·3HO·17DMF (), [InO(tatab)(HO)](NO)·15DMA (), [ZrO(OH)(tatab)(Htatab)(HO)]·Guest (), and [ZrO(OH)(tatab)(HO)]·Guest () (DMF = ,-dimethylformamide, and DMA = ,-dimethylacetamide). Large pore sizes of compound enhance the concentration of substrates, and the multi-active sites inside its framework synergistically promote the process of the CO cycloaddition reaction.

View Article and Find Full Text PDF

Herein, a novel luminescent Zn-LMOF, ([Zn(PBBA)(HO)]·3DMF·2HO, PBBA = 4,4'-(2,6-pyrazinediyl)bis[benzoic acid], DMF = ,-dimethylformamide), was successfully synthesized under solvothermal conditions. Zinc ions are connected by PBBA ligands to form two-dimensional (2D) layers, and the layers are further propped up through hydrogen-bonding interactions. exhibits good sensitivity to inorganic pollutants, Fe and CrO, as well as nitro aromatic explosives, 2,4,6-trinitrophenol and 2,4-dinitrophenol.

View Article and Find Full Text PDF

Macrophage polarization plays a crucial role in atherosclerosis (AS), which is closely associated with energy metabolism. However, the underlying mechanism remains elusive. Hepatoma-derived growth factor (HDGF) has been reported to promote tumor metastasis via energy metabolism reprogramming.

View Article and Find Full Text PDF

Disturbance of macrophage-associated lipid metabolism plays a key role in atherosclerosis. Crosstalk between autophagy deficiency and inflammation response in foam cells (FCs) through epigenetic regulation is still poorly understood. Here, we demonstrate that in macrophages, oxidized low-density lipoprotein (ox-LDL) leads to abnormal crosstalk between autophagy and inflammation, thereby causing aberrant lipid metabolism mediated through a dysfunctional transcription factor EB (TFEB)-P300-bromodomain-containing protein 4 (BRD4) axis.

View Article and Find Full Text PDF

Synthetic polymer-derived hollow carbon spheres have great utilitarian value in many fields for which the synthesis of proper polymer precursors is a key process. The exploration of new suitable polymer precursors and the construction of refined hollow structures in emerging polymers are both of great significance for synthetic methodology and novel carbon materials. Here, for the first time Schiff base polymer (SBP) colloid spheres with refined hollow structures were synthesized by tandem gradient growth and confined polymerization processes.

View Article and Find Full Text PDF

Obtaining functional human cells through interspecies chimerism with human pluripotent stem cells (hPSCs) remains unsuccessful due to its extremely low efficiency. Here, we show that hPSCs failed to differentiate and contribute teratoma in the presence of mouse PSCs (mPSCs), while MYCN, a pro-growth factor, dramatically promotes hPSC contributions in teratoma co-formation by hPSCs/mPSCs. MYCN combined with BCL2 (M/B) greatly enhanced conventional hPSCs to integrate into pre-implantation embryos of different species, such as mice, rabbits, and pigs, and substantially contributed to mouse post-implantation chimera in embryonic and extra-embryonic tissues.

View Article and Find Full Text PDF

The epigenetic treatment by 3-Deazaneplanocin A (DZNep), a histone methyltransferase inhibitor, shows great potential against acute myeloid leukemia (AML). However, the variant sensitivity and incomplete response to DZNep are commonly observed. Here, we reveal that vitamin C (Vc) dramatically promotes DZNep response against leukemic cells in different cell lines and primary AML samples.

View Article and Find Full Text PDF

On the basis of different V-shaped ligands, three zirconium-organic frameworks (, , and ) have been successfully constructed. By regulating spatial configuration and functional groups of organic ligands, these as-synthesized Zr-MOFs (MOF = metal-organic framework) display distinct structures and different light hydrocarbon adsorption/separation capabilities. , with a double-walled interpenetrated 3D primitive cubic (pcu) framework, exhibits good gas-adsorption capacity but not prominent selective separation ability.

View Article and Find Full Text PDF