Publications by authors named "Jiajia Shen"

High-entropy alloy (HEA) electrocatalysts exhibit a rich diversity of synergistic active sites but still face persistent challenges, such as unstable metal-support interfaces and intricate electronic structure modulation. Here, inspired by cell membrane-embedded synthetase catalytic units in the photosystem, we report a MnFeCoNiCuRu HEA electrocatalyst anchored on carbon nanofibers (CNFs) via the concurrent growth of HEA nanocrystals and CNF film support, which exhibits stable and strong metal-carbon interface coupling. In this architecture, trace Ru (∼4 wt %) acts as an electronic modulator, shifting the d-band center closer to the Fermi level and modulating the linear correlation between adsorption energies and the d-band center, thereby greatly enhancing intrinsic catalytic activity.

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Objectives: Intrauterine growth restriction (IUGR) significantly affects neonatal development, but its pathogenesis is not fully understood. Klotho protein is involved in aging-related diseases, and its role in fetal growth is unclear. This study aims to explore Klotho's role in IUGR.

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Oxide ceramic aerogels offer exceptional thermal insulation and chemical stability but face limitations due to brittleness, moisture sensitivity, and costly, complex manufacturing. Here, we present a roll-to-roll method for producing flexible, hydrophobic, and fire-resistant silica/mica hybrid aerogel paper. The process bypasses the need for expensive polymer sacrificial templates and high temperature sintering, instead forming aerogels directly through electrospinning stabilized tetraethyl orthosilicate and a synthetic fluorophlogopite sol.

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Tree peony is a traditional and popular ornamental flower. However, its short and concentrated flowering period restricts the development of the tree peony industry. In this study, the function of the PomiR171n-PoUGT89B2 combination related to senescence regulation was analyzed, using Paeonia ostii 'Fengdan' (P.

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Background: Sleeve gastrectomy plus jejunojejunal bypass (SG + JJB) is increasingly accepted as a surgical treatment for severe obesity. However, data on the long-term results of this procedure are limited, and studies comparing it with other bariatric procedures are scarce.

Objectives: The objective of this study was to compare 5-year outcomes following SG + JJB and Roux-en-Y gastric bypass (RYGB).

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Yield strength and work hardening are two critical mechanical properties of metallic structural materials. However, increasing yield strength through conventional strengthening mechanisms often restricts further dislocation multiplications and interactions, which significantly reduces work hardening and poses a challenge to achieving an optimal balance between these properties in material design. Here, an innovative approach to simultaneously enhance both yield strength and work hardening in a heterostructured, nanoprecipitation-strengthened alloy is reported.

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Circadian rhythm (CR) disruption has been confirmed as a contributing factor to tumor progression. However, regulating circadian genes shows an inhibitory effect on ovarian tumor initiation and progression, which highlights the urgent necessity to regulate tumors' CR to understand their role in ovarian cancer (OC) therapy precisely. Herein, a novel near-infrared (NIR) light-controlled spatiotemporal strategy is presented, aiming to manipulate ovarian tumors' CR while enhancing the efficacy of chemotherapy agents.

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Prelithiation emerges as an effective technique to enhance the initial Coulombic efficiency (ICE) and cycling stability of silicon oxide based carbon composite (C/SiO) anodes, yet traditional approaches remain plagued by sluggish kinetics, cumbersome procedures, safety hazards, and inadequate precision. Here, a facile topological intercalation prelithiation method capable of forming a robust and homogeneous solid electrolyte interface (SEI) network on porous C/SiO nanofiber anodes in merely 30 s is reported. Through constructing three charge-driven topology models derived from flexible SiO/porous carbon nanofiber (SiO/PCNF) films, the mechanism of this fast Li-intercalation process is unraveled.

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Functionalised nonlinear structures employing structural instabilities for rapid response shape-shifting are emerging technologies with a wide range of potential applications. The truss is a widely employed model for such functionalised nonlinear structures; however, few studies have delved into its functionality when integrated with a complex dynamical system. This paper investigates its efficacy on enhancing the progression speed of a vibration-driven robot, known as the vibro-impact capsule robot, which is a piecewise-smooth dynamical system having abundant coexisting attractors.

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This study used largemouth bass (initial average weight: 33.33 ± 1.8 g) to explore the effects of adding different brown algae extracts to feed on the fish's growth, immunity and intestinal health.

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Background: Gastric adenocarcinoma (GAC), particularly the Lauren intestinal-type GAC (IGAC), leads to significant mortality in China due to the limited effectiveness of current treatments. This study aims to investigate the mechanisms of immune suppression in IGAC to identify potential targets for enhancing immunotherapy outcomes.

Methods: Performing an extensive collection and re-analysis of single-cell RNA sequencing (scRNA-seq) of tumor tissues and the corresponding noncancerous mucosae from 15 Chinese patients diagnosed with IGAC, we identified cell subpopulations involved in immune suppression within the tumor microenvironment (TME).

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Background: Cancer-associated fibroblasts (CAFs) play a pivotal role in shaping the microenvironment of hepatocellular carcinoma (HCC). However, the mechanisms through which CAFs influence the progression of HCC remain incompletely understood.

Methods: Single-cell RNA sequencing datasets (GSE158723 and GSE112271) were retrieved from the Gene Expression Omnibus (GEO) database at the National Center for Biotechnology Information (NCBI) and analyzed using R software.

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Article Synopsis
  • The study focuses on the poplar hybrid 'P. xin lin 1', which grows quickly but is vulnerable to the herbivorous insect Hyphantria cunea, highlighting the need to understand its defense mechanisms at molecular levels.
  • Researchers analyzed the changes in gene expression and metabolite production in 'P. xin lin 1' leaves after being attacked by H. cunea at various time points, identifying 8925 differentially expressed genes and 842 metabolites.
  • Key findings reveal that several transcription factor families, particularly AP2/ERF, MYB, C2C2, and bHLH, are involved in the plant's defense, with significant pathways related to plant hormone
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  • This study used Mendelian randomisation to investigate how direct fetal effects on birthweight impact liver health, focusing on liver structure, function, and disease risk.
  • The analysis found that lower genetically predicted birthweight was linked to a higher risk of non-alcoholic fatty liver disease (NAFLD) and increased liver fat content, even when excluding maternal influences.
  • The research identified fasting insulin and triglycerides as mediators of this relationship, suggesting pathways for early clinical intervention to address liver disease risks.
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Biology is a wellspring of inspiration in engineering design. This paper delves into the application of elastic instabilities-commonly used in biological systems to facilitate swift movement-as a power-amplification mechanism for soft robots. Specifically, inspired by the nonlinear mechanics of the hummingbird beak-and shedding further light on it-we design, build and test a novel, rapid-response, soft end effector.

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Article Synopsis
  • - The role of T cells in wound healing has been acknowledged, but their specific signaling functions in this process remain unclear.
  • - Using advanced techniques like single-cell RNA sequencing and immunofluorescent imaging, researchers identified various T cell types during the inflammation phase of wound healing, including activated, cytotoxic, and regulatory T cells.
  • - The study highlighted the unique contributions of different T cell populations to wound healing, particularly noting the presence of exhausting T cells and calling for more research on their role and mechanisms in this context.
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Therapy-induced senescence can regulate both the innate and adaptive immune systems, thereby affecting therapeutic efficacy. Bleomycin is a major component of combined chemotherapy regimens, utilized for the treatment of multiple tumors, whereas pulmonary toxicity severely restricts its clinical benefits. As a member of the bleomycin family, boningmycin (BON) exhibits potent anticancer activity with minimal pulmonary toxicity, making it a potential alternative to bleomycin.

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Populus pseudo-cathayana × Populus deltoides is a crucial artificial forest tree species in Northeast China. The presence of the fall webworm (Hyphantria cunea) poses a significant threat to these poplar trees, causing substantial economic and ecological damage. This study conducted an insect-feeding experiment with fall webworm on P.

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Clear cell renal cell carcinoma (ccRCC) accounts for approximately 75-80% of all patients with renal cell carcinoma. Despite its prevalence, little is known regarding the key components involved in ccRCC metastasis. In this study, scRNA-seq analysis was employed to classify CD8 T cells into four sub-clusters based on their genetic profiles and immunofluorescence experiments were used to validate two key clusters.

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Article Synopsis
  • This study examined the effect of liver transplantation (LT) using different perfusion techniques on early liver function recovery and identified risk factors.
  • Researchers analyzed data from 136 LT patients at a Chinese hospital, comparing outcomes between those who received retrograde reperfusion (RTR) and initial portal reperfusion (IPR).
  • Results indicated that patients undergoing RTR had significantly lower levels of liver enzymes (ALT and AST) post-surgery compared to those in the IPR group, suggesting better early recovery in liver function with RTR, along with identifying the MELD score as an independent risk factor for complications.
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Background: One anastomosis gastric bypass (OAGB) is recognized as a standard procedure in metabolic surgery. However, concerns about postoperative bile reflux and nutritional risks are prevalent. Comparatively, sleeve gastrectomy with loop duodenojejunal bypass (SG + LoopDJB) bypasses an equivalent length of the foregut as OAGB while maintaining pyloric function.

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Background: Populus simonii, a notable native tree species in northern China, demonstrates impressive resistance to stress, broad adaptability, and exceptional hybridization potential. DOF family is a class of specific transcription factors that only exist in plants, widely participating in plant growth and development, and also playing an important role in abiotic stress response. To date, there have been no reported studies on the DOF gene family in P.

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Article Synopsis
  • Nonalcoholic fatty liver disease (NAFLD) and its severe form, NASH, are major health issues with no approved drug treatments, and the protein CD36 plays a key role in their progression.
  • The study investigated the effects of O-GlcNAcylation on CD36 in liver tissues, using mouse models and various analytical techniques to understand its influence on CD36 expression and function in the context of NASH.
  • Results showed that increased O-GlcNAcylation not only boosted CD36 levels via the NF-κB signaling pathway but also enhanced its function in uptake of fatty acids, contributing to lipid accumulation, although mutations in specific CD36 sites negated these effects.
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FBXO43 is a member of the FBXO subfamily of F-box proteins, known to be a regulatory hub during meiosis. A body of data showed that FBXO43 is overexpressed in a number of human cancers. However, whether and how FBXO43 affects cell cycle progression and growth of cancer cells remain elusive.

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Background: Performing bariatric surgery on patients with a BMI of over 50 kg/m 2 is challenging. This study aimed to explore the status and challenges related to the perioperative management of such patients in China.

Materials And Methods: A prospective survey was designed to investigate the perioperative management of patients with a BMI of greater than or equal to 50 kg/m 2 undergoing bariatric surgery in China.

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