Publications by authors named "YanYan Chen"

Diabetic ulcers (DUs) are characterized by a microenvironment with high oxidative stress, high blood glucose levels, and recalcitrant bacterial infections. This microenvironment is accompanied by long-term suppression of endogenous antioxidant systems, which makes their clinical management extremely challenging. To address this issue, a hybridized novel gold-palladium (AuPd) nanoshell of the injectable/injectable hydrogel system UiO/AuPd/BNN6/PEG@Gel (UAPsBP@Gel) is developed.

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This study explores the synergistic effects of linoleic acid (LA) oxidation on the aggregation behavior and structural properties of wheat gluten (WG). Using lipoxygenase to induce LA oxidation, it was observed that this process significantly influenced WG's viscoelasticity and structural characteristics. Specifically, LA oxidation enhanced WG's viscoelastic properties while reducing its instantaneous elastic and recovery deformations.

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Background: To evaluate the 6-year physiological rates-of-change in ganglion cell inner plexiform layer (GCIPL) and retinal nerve fibre layer (RNFL) thickness measured with optical coherence tomography.

Methods: We included 2202 out of 2661 subjects from the population-based Singapore Chinese Eye Study who returned for follow-up 6 years after baseline examination (follow-up rate 87.7%).

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Aim: To investigate the influence of early-life factors (Season of birth, premature birth and breastfeeding) on the age at myopia onset.

Methods: A total of 331 myopic students aged 18 years or above were recruited from one medical university in Wenzhou, China. Questionnaires were administered to collect data on age at myopia onset, early-life factors, and vision hygiene habits.

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Spatial stable isotope tracing metabolic imaging is a cutting-edge technique designed to investigate tissue-specific metabolic functions and heterogeneity. Traditional matrix-assisted laser desorption ionization-mass spectrometry imaging (MALDI-MSI) techniques often struggle with low coverage of low-molecular-weight (LMW) metabolites, which are often crucial for spatial metabolic studies. To address this, we developed a high-coverage spatial isotope tracing metabolic method that incorporates optimized matrix selection, sample preparation protocols, and enhanced post-ionization (MALDI2) techniques.

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Background: Long-term, potentially lifelong therapy is needed to treat noninfectious uveitis (NIU) in children. Previous research has focused primarily on treatment approaches, but few studies have investigated the effect of children's chronic illness on other family members. The aim of this study is to explore the experiences of burden and needs in caregivers of children with NIU, and to provide a reference for formulating targeted intervention strategies.

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Objective: This study aims to investigate the roles of the EXT1 and FGFR3 genes in the development of osteochondromas, focusing specifically on their potential interactions in chondrocyte proliferation, differentiation, and tumor formation.

Methods: In vitro, the ATDC5 chondroprogenitor cell line was used to examine the effects of inactivation of both EXT1 and FGFR3. In vivo, a mouse model with dual gene knockout of Ext1 and Fgfr3 was constructed to further explore these genes' roles in tumor formation by observing the incidence and distribution patterns of osteochondromas.

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Stretchable sensors that can conformally interface with the skins for wearable and real-time monitoring of skin deformations, temperature, and sweat biomarkers offer critical insights for early disease prediction and diagnosis. Integration of multiple modalities in a single stretchable sensor to simultaneously detect these stimuli would provide a more comprehensive understanding of human physiology, which, however, has yet to be achieved. Here, this work reports, for the first time, a stretchable multimodal photonic sensor capable of simultaneously detecting and discriminating strain deformations, temperature, and sweat pH.

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Pecan (Carya illinoinensis) is a globally important nut crop, yet the processes of lipid biosynthesis and spatial lipid distribution within its embryo remain poorly understood. This study employed UHPLC-MS/MS and MALDI-MSI to profile lipids in developing pecan embryos, identifying 401 lipid molecules, including a high abundance of glycerolipids (148) and glycerophospholipids (144). Differential diacylglycerols showed gradual uptrends, highlighting their role in synthesizing glycerolipids and glycerophospholipids.

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Background: Obstructed defecation syndrome (ODS) represents the most prevalent form of chronic constipation, affecting a diverse patient population, leading to numerous complications, and imposing a significant burden on healthcare resources. Most ODS patients have insufficient rectal propulsion, but the exact mechanism underlying the pathogenesis of ODS remains unclear.

Aim: To explore the molecular mechanism underlying the pathogenesis of ODS.

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Article Synopsis
  • Myosteatosis, characterized by fat buildup in skeletal muscle, is common among patients referred for liver transplantation (LT) and its effects on physical function and clinical outcomes remain uncertain.
  • In a study involving 237 patients, those with myosteatosis showed increased frailty and poorer physical function compared to those without, but the impact on hospitalization rates and surgical complications was less clear after adjustments.
  • Overall, while myosteatosis is linked to diminished physical abilities, it does not seem to significantly affect the likelihood of receiving a transplant or post-operative complications.
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  • The study examined how cadmium (Cd) and lead (Pb) stress affect tomato seedlings, focusing on growth and molecular responses.
  • Results showed that exposure to both metals significantly boosted soluble sugar and proline levels while increasing antioxidant enzyme activities, indicating a stress response.
  • The findings highlight potential gene regulation involved in metal tolerance, suggesting future research could enhance plant resilience against heavy metal contamination.
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The photosensitive S-nitrosocysteine (CysNO) could respond to light irradiation to produce nitric oxide (NO), exhibiting tremendous potential in accelerating peripheral nerve regeneration. However, its further application was limited by the burst release of NO and the requirement for ultraviolet excitation with low tissue penetration. Herein, a near-infrared-triggered NO controlled release nanosystem UCNP@ZIF-8/CysNO consisting of an upconversion nanoparticle (UCNP) core and zeolitic imidazolate framework-8 (ZIF-8) shell loading with CysNO was constructed, and then blended with poly-l-lactic acid powder to fabricate nerve scaffold by laser additive manufacturing technique.

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Sustainable photocatalysis can effectively reduce the radioactive TcO to less soluble TcO·HO(s), but the reduction efficiency is highly susceptible to coexisting nitrate (NO). Here, we quantitatively investigate photocatalytic remediation conditions for Tc-contaminated water stimulated by the analogue perrhenate (ReO) in the presence of NO, and we elucidate the influence mechanism of NO by in situ characterizations. The interfering NO can compete with Re(VII) for the carbonyl radical (·CO) produced by formic acid (HCOOH) oxidation to generate nitrogen-containing products such as NH, NO, and NO, resulting in the decrease in the Re(VII) reduction ratio.

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Background: Breast cancer remains a leading cause of cancer-related mortality worldwide. Patient self-management plays a pivotal role in enhancing outcomes and quality of life for individuals affected by this disease. This study employed bibliometric and visual analysis techniques utilizing CiteSpace to elucidate the current status and research hotspots in breast cancer patient self-management from January 1, 2005, to August 31, 2023.

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Due to the innate recalcitrancy caused by robust hydrogen bonding interaction, cellulose cannot be easily processed into high-valued materials or chemicals. Herein, a solvent-free ball milling treatment was conducted to activate microcrystalline cellulose (MCC). The research results demonstrated that ball milling treatment rapidly reduced the average particle size (Ð) and crystalline index (CrI) of MCC.

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Article Synopsis
  • - This study examined how type 2 diabetes and impaired glucose tolerance (IGT) impact the risk of developing both cardiovascular disease (CVD) and cancer among nearly 1,630 participants over 34 years.
  • - Results showed that the risk of the multimorbidity cluster was significantly higher in individuals with IGT and newly diagnosed diabetes compared to those with normal glucose tolerance, with hazard ratios indicating a marked increase in risk.
  • - The findings emphasize the importance of detecting IGT early and managing diabetes effectively to prevent the onset of serious health issues like CVD and cancer.
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Background: This study aimed to investigate the knowledge, attitude and practice (KAP) of pediatric healthcare staff towards the therapy for patients with congenital heart disease (CHD). CHD is a major global health concern, posing significant risks to health and life despite advancements in early detection and treatment.

Methods: This web-based cross-sectional study was conducted from May 04, 2023 to August 12, 2023 in the Bengbu area (three counties and one city) for pediatric healthcare staff.

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The broad-spectrum fungicides mepanipyrim (Mep) and cyprodinil (Cyp) have been reported to be used worldwide to control gray mold of fruit crops. Consequently, they are often detected in the water and food items. However, the impacts and potential mechanisms of these two pesticides on environmental organisms remain unclear.

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Zero-dimensional (0D) halide perovskites have garnered significant interest due to their novel properties in optoelectronic and energy applications. However, the mechanisms underlying their phase transformations and fluorescence properties remain poorly understood. In this study, we have synthesized a micron-scale 0D perovskite observable under confocal laser scanning microscopy (CLSM).

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  • Portulaca oleracea L. (commonly known as purslane) is recognized for its edible and medicinal benefits, historically used in traditional medicine for diuretic and other therapeutic properties.
  • The focus of current research on its polysaccharide component (POP) highlights its diverse biological activities, particularly in immune system modulation, prompting extensive studies on its extraction and characterization.
  • This review aims to clarify the pharmacological mechanisms and molecular pathways of POP while identifying gaps in current knowledge and proposing new avenues for research to enhance understanding of its health benefits.
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Background: Abnormal white blood cell count after kidney transplantation is an important adverse clinical outcome. The abnormal white blood cell count in patients after surgery may be caused by the use of immunosuppressive agents and other factors. A lower white blood cell count than normal will greatly increase the probability of adverse outcomes such as infection and reduce the success rate of surgery.

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Comprehending the underlying factors that govern photoluminescence (PL) in metal nanoclusters (NCs) under physiological conditions remains a highly intriguing and unresolved challenge, particularly for their biomedical applications. In this study, we evaluate the critical role of excited-state proton-coupled electron transfer in the emission of metal NCs. Our findings demonstrate that hydronium ion (HO) binding can trigger a nonlinear, pH-dependent excited-state concerted electron proton transfer (CEPT) reaction.

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  • The study explores rare vascular diseases (Behçet disease, enterocolic lymphocytic phlebitis, idiopathic myointimal hyperplasia of mesenteric veins, and mesenteric arteriovenous dysplasia) that can cause bowel ischaemia and are often misdiagnosed as Crohn's disease due to similar symptoms and histological patterns.
  • Researchers compared clinical and pathological data of 13 patients misdiagnosed with Crohn's disease and later found to have these vascular diseases against a control group of 15 patients who were correctly diagnosed with Crohn's.
  • Key distinguishing features were identified: Crohn's disease showed signs like transmural inflammation and abscesses, while
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To elucidate the mechanisms underlying the changes in the rheological properties of dough made from wheat flour during maturation, the molecular structure of gluten before and after maturation was characterized. Wheat flour was matured under three distinct conditions for predetermined durations. The development time, stability, and maximum force of dough peaked at 7.

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