Publications by authors named "Yongjie Chen"

The anterior cingulate cortex (ACC) of the human brain is involved in higher-level cognitive functions such as emotion and self-awareness. We generated profiles of human and macaque ACC gene expression and chromatin accessibility at single-nucleus resolution. We characterized the conserved patterns of gene expression, chromatin accessibility, and transcription factor binding in different cell types.

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This study aimed to investigate the effects of inspiratory muscle training (IMT) on inspiratory muscle strength, dyspnea, and quality of life (QOL) in COPD patients. A comprehensive search was undertaken on the Web of Science, Scopus, Embase, Cochrane, and PubMed databases, encompassing data published up to 31 March 2024. A meta-analysis was subsequently conducted to quantify the standardized mean difference (SMD) and 95% confidence interval (CI) for the effects of IMT in COPD patients.

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  • The study focuses on improving the production of heavy-chain antibodies (VHH) for drug therapy and research by optimizing expression systems.
  • The researchers identified an effective signal peptide (SP IFN-α2) that enhanced VHH secretion and implemented codon optimization to significantly increase yield while maintaining functional binding activity.
  • The optimized process resulted in an average yield of over 191.6 mg/L for multiple VHHs, indicating a promising method for large-scale production in mammalian cells, particularly Expi293F cells.
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An efficient amidation of electron-rich arenes using NFSI as a nitrogen source has been successfully disclosed. This amidation process can be easily conducted at elevated temperatures, without the need for catalysts or additives. A wide range of arenes substituted with hydroxy, alkoxy, or carbonyl groups were found to be compatible, yielding the desired amination products.

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Autophagy is a highly conserved catabolic process that transports cellular components to lysosomes for degradation and reuse. It impacts various cellular functions, including innate and adaptive immunity. It can exhibit a dual role in viral infections, either promoting or inhibiting viral replication depending on the virus and the stage of the infection cycle.

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Accumulating evidence has demonstrated that medium-chain triglycerides (MCTs) and docosahexaenoic acid (DHA) positively affect cognitive function. However, it remains unclear whether the improvement is related to the alterations of gut microbiota and inflammation and the impact of the combined intervention. In this study, we hypothesized that the supplementation of MCTs combined with DHA could modulate gut microbiota, inflammation, and improve cognitive function in APPswe/PS1De9 model mice and senescence-accelerated mouse-prone-8, which are two different mouse models used in neurodegeneration research.

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  • The study investigates how micronutrient deficiencies in older adults are linked to sleep disorders, as physical abilities decline with age.
  • Researchers compared blood micronutrient levels between 124 older adults with sleep disorders and 124 matched controls, using a specific blood testing method.
  • Findings reveal that lower levels of vitamin E, folate, and selenium are associated with sleep disorders and resulted in a predictive model that effectively assesses the risk of these disorders in older adults.
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  • Carbon-supported Fe-based catalysts show promise for converting CO into valuable chemicals like alkenes due to their effective active sites and strong interactions with carbon support.
  • Although progress has been made in improving their performance through various modifications, the impact of the porosity of carbon supports on the catalysts' effectiveness has not been thoroughly studied.
  • Research findings indicate that larger meso and macro-pores in the carbon support enhance the formation of beneficial FeC phases for efficient bond coupling, ultimately increasing the production of valuable carbon-based chemicals, particularly alcohols.
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Introduction: Senecavirus A (SVA), belonging to the genus in the family , is an emerging pathogen causing vesicular disease in pigs. The main clinical manifestations of SVA infection include high mortality in neonatal piglets, skin ulceration, and vesicular lesions. So far, there is no commercially available vaccines or drugs against SVA.

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  • The study investigated the effects of phosphatidylserine (PS) and α-linolenic acid (ALA) on cognitive function in patients with mild cognitive impairment (MCI) through a 12-month randomized, double-blind, placebo-controlled trial involving 190 participants in Tianjin, China.
  • Participants in the intervention group received a daily supplement containing ALA, PS, Ginkgo total flavonoids, and various vitamins, while the placebo group received identical capsules without active ingredients.
  • Results showed that the intervention group experienced significant improvements in cognitive tasks (like arithmetic and memory) and increases in beneficial serum fatty acids and neurotransmitters compared to the placebo group.
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Porcine reproductive and respiratory syndrome (PRRS) caused by porcine reproductive and respiratory syndrome virus (PRRSV) causes considerable economic losses to the global swine industry every year and seriously hinders the healthy development of this industry. Although tremendous efforts have been made over the past 30 years toward the development of prevention and control strategies against PRRSV infection, to date, treatments with proven efficacy have yet to be available due to our incomplete understanding of the molecular basis and complexity of the infection machinery. This review systematically discusses recent advances in the research and development of anti-PRRSV therapies targeting different stages of the viral life cycle.

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Total cholesterol (TC) and the cholesterol oxidation product 27-hydroxycholesterol (27-OHC) are both increased in the elderly. Accumulating evidence has linked 27-OHC to glucose metabolism in the brain, while docosahexaenoic acid (DHA) has been shown to positively regulate the 27-OHC levels. However, it is unclear whether DHA may affect glucose metabolism in the brain by regulating 27-OHC levels.

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  • Higher levels of medium-chain fatty acids (MCFAs) like octanoic acid and docosahexaenoic acid (DHA) are linked to a reduced risk of mild cognitive impairment (MCI).
  • The study examined data from a cohort of elderly individuals, using regression analysis to compare those with MCI to matched controls, revealing significant associations between fatty acid levels and MCI risk.
  • Mitochondrial factors such as β-hydroxybutyrate (BHB) and mitochondrial DNA (mtDNA) copy number play mediating roles in these associations, suggesting they influence how MCFAs and DHA impact cognitive health.
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The survival rates for patients with osteosarcoma (OS) have stagnated over the past few decades. It is essential to find new therapies and drugs. A licensed antipsychotic medication called trifluoperazine (TFP) significantly reduces the growth of several cancers.

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  • The study addresses non-radiative recombination losses and moisture degradation in inverted perovskite solar cells (PSCs), which hinder their efficiency and stability due to poor perovskite quality.* -
  • To combat these issues, researchers combined thermally stable perovskite layers with covalent organic frameworks (COFs) that improve perovskite quality and reduce defects through a unique interaction with lead ions.* -
  • COF-doped PSCs achieved power conversion efficiencies of up to 25.64% and demonstrated remarkable stability, retaining 81% of their initial efficiency after 978 hours at elevated temperatures and performing well under moisture and light conditions.*
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Hexokinase (HK) catalyzes the first irreversible rate-limiting step in glycolysis that converts glucose to glucose-6-phosphate. HK1 is ubiquitously expressed in the brain, erythrocytes, and other tissues where glycolysis serves as the major source of ATP production. Spermatogenic cell-specific type 1 hexokinase (HK1S) is expressed in sperm but its physiological role in male mice is still unknown.

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  • The review examines how food fortification policies with folic acid influence the effectiveness of folate-based B vitamin treatments on cognitive function in older adults.
  • A systematic analysis of 51 studies involving over 42,000 participants found that folate supplementation significantly improved cognitive function overall, but this effect was diminished where food fortification policies were in place.
  • Specifically, the meta-analysis revealed significant benefits of folate supplementation in regions without mandatory fortification, while no significant cognitive improvements were noted in areas with such policies.
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Aims: Although low-intensity pulsed ultrasound (LIPUS) combined with disinfectants has been shown to effectively eliminate portions of biofilm in vitro, its efficacy in vivo remains uncertain. Our objective was to assess the antibiofilm potential and safety of LIPUS combined with 0.35% povidone-iodine (PI) in a rat debridement, antibiotics, and implant retention (DAIR) model of periprosthetic joint infection (PJI).

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  • - The study highlights that abnormal trophoblast self-renewal and differentiation in early pregnancy can lead to miscarriages, with the KAT8 enzyme playing a critical role in regulating these processes.
  • - Researchers found that deleting KAT8 in trophoblasts causes severe developmental issues, but boosting the expression of a key marker (CDX2) can partially counteract these defects.
  • - Changes in the levels of KAT8, CDX2, and H4K16ac are linked to recurrent pregnancy loss, suggesting that targeting the KAT8-H4K16ac-CDX2 pathway might be a potential treatment option for this issue.
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Introduction: It is uncertain whether folic acid (FA) combined with docosahexaenoic acid (DHA) could improve cognitive performance. This study evaluated the effects of a 12-month FA and DHA supplementation, in combination or alone, on cognitive function, DNA oxidative damage, and mitochondrial function in participants with mild cognitive impairment (MCI).

Methods: This randomized, double-blind, placebo-controlled trial recruited MCI participants aged 60 years and older.

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Alkane elimination reactions between the diamino- and dianilino-bridged tetrakis(phenolate) proligands and precursors M(CHSiMe)(THF), M(CHCH--NMe) (M = Sc and Y), and Hf(CHPh) were investigated. The diamino-bridged afforded nonsymmetric complex incorporating two metal centers in different coordination environments. This one and other dinuclear compounds , , and were characterized by NMR spectroscopy, elemental analysis, and X-ray diffraction study (for and ) and turned out to be symmetric in solution.

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Short-wavelength infrared (SWIR) light detection plays a key role in modern technologies. Emerging solution-processed organic semiconductors are promising for cost-effective, flexible, and large-area SWIR organic photodiodes (OPDs). However, the spectral responsivity () and specific detectivity (*) of SWIR OPDs are restricted by insufficient exciton dissociation and high noise current.

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Background: Hyperproliferation of pulmonary arterial smooth muscle cells (PASMCs) and consequent pulmonary vascular remodeling are the crucial pathological features of pulmonary hypertension (PH). Protein methylation has been shown to be critically involved in PASMC proliferation and PH, but the underlying mechanism remains largely unknown.

Methods: PH animal models were generated by treating mice/rats with chronic hypoxia for 4 weeks.

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The effectiveness of photodynamic therapy (PDT) has been greatly restricted by the hypoxic tumor microenvironment and the susceptible resistance of monotherapy. Although nanodrugs based on transition metal complexes capable of integrating PDT with photoactivated chemotherapy (PACT) have garnered tremendous attention as promising candidates for overcoming the above limitations, the therapeutic efficacy of these nanodrugs is still hampered by inadequate loading of active pharmaceutical ingredients (APIs) and the inherent ability of cancer cells to repair damaged DNA. Herein, we developed a photoactivated full-API nanodrug, Ru-T FAND, by one-step self-assembly of RuDPB and TH287.

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Background: Numerous studies have investigated the correlation between malondialdehyde (MDA) and cognitive decline. However, limited research has explored the interplay between superoxide dismutase (SOD), C-reactive protein (CRP), and MDA.

Objective: This study aims to scrutinize the association between MDA and cognitive function in older adults, while also elucidating the roles of SOD and CRP within this relationship.

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