Publications by authors named "Luping Li"

Objective: To compare the efficacy of laparoscopic proximal versus distal ureteroureterostomy in the treatment of complete renal-ureteral duplication malformation in children.

Method: This retrospective study included 72 pediatric patients diagnosed with complete renal-ureteral duplication malformation at the First Affiliated Hospital of Zhengzhou University between January 2014 and December 2021. Diagnosis was confirmed through various imaging studies, including ultrasound, diuretic renography, CT urography (CTU), magnetic resonance urography (MRU), and voiding cystourethrography (VCUG).

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Inflammatory responses play a crucial role in the progression of pediatric neurogenic bladder (NB)-associated fibrosis; however, their specific contributions remain poorly understood. This study aimed to identify inflammation-related biomarkers for diagnosing NB fibrosis and to explore potential therapeutic drugs. The NB rat model was established by spinal nerve severing, followed by single-cell and bulk RNA sequencing of bladder tissues.

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Alzheimer's disease (AD) is pathologically linked to the aggregation of amyloid-β (Aβ) peptides into neurotoxic fibrils. Despite advancements in Alzheimer's therapeutics, current strategies fail to simultaneously target amyloid-β aggregation and oxidative stress, particularly with spatiotemporal precision. To address the limitations of conventional therapies, this study develops a photo-responsive nanomaterial, conjugated polymer nanodots functionalized with chlorin e6 (Ce6) and KLVFF peptides (CNPs-Ce6-K), for targeted inhibition of Aβ fibrillization.

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Epidermal growth factor receptor (EGFR)-targeted therapy by tyrosine kinase inhibitors (TKIs) is the first-line treatment of non-small cell lung cancer (NSCLC). However, EGFR mutation-mediated TKIs resistance remains a major hurdle for NSCLC treatment. This study found the opposite roles of calcium (Ca) and its receptor calmodulin (CaM) in regulating EGFR protein stability.

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Introduction: Alzheimer's disease (AD) is a neurodegenerative disease characterized by amyloid beta (Aβ) deposition, phosphorylated Tau protein aggregation, inflammation, and neuronal damage. Neuronal autophagy plays an important role in ameliorating central nervous system diseases such as AD. As an emerging form of iron-dependent cell death, ferroptosis has attracted great attention in the field of neurodegenerative diseases.

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Neuroinflammation is a key risk factor for cognitive impairment, and microglia are the main drivers. Metformin has been shown to suppress inflammation and reduce microglial activation, protecting neurons from damage. However, its clinical efficacy is limited by low bioavailability and metabolic challenges, especially in terms of precise delivery to specific targets.

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Ischemic stroke remains a primary cause of mortality and morbidity, with ferroptosis emerging as a critical mechanism underlying neuronal damage post-ischemic injury. This study aims to elucidate the mechanisms of ferroptosis in ischemic stroke and assess the therapeutic potential of electroacupuncture, with emphasis on the NCOA4-FTH1 signaling pathway. After establishing a mouse model of middle cerebral artery occlusion (MCAO), we employed a combination of behavioral assessments and molecular techniques, including transmission electron microscopy, immunofluorescence, and Western blotting, to investigate the impact of electroacupuncture on ferroptosis markers.

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Objective: To compare the effectiveness of Chinese Association of Operating Room Nurses (CORN)-based nursing care against that of routine nursing for reducing intraoperative pressure injury (PI) in patients undergoing neurosurgery.

Methods: Convenience sampling was used to select patients who received neurosurgery between March 1, 2022, and June 30, 2022, at a grade A hospital in Zhejiang Province, China, as the study participants (N = 100). Participants were divided into a control group (n = 50) and an observation group (n = 50).

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Background: Within the past two decades, high-profile cases of melamine (MA) exposure have raised significant toxicological concerns, particularly regarding food adulteration. While widely used as a fundamental organic chemical intermediate in various household products, MA's potential for unexpected toxicological synergy with its homolog, cyanuric acid (CA), remains a concern. This study aimed to investigate the nephrotoxicity of combined melamine and cyanuric acid (MC) exposure and its underlying mechanisms in rats through an integrative approach, combining network toxicology (NT), bioinformatics, and experimental validation.

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Diabetic wounds face challenges like infection, prolonged inflammation, and poor vascularization. To address these, we developed an injectable hydrogel for diabetic wound dressing by grafting palmitoyl tetrapeptide-7 (Pal-7) onto chitosan (CS) to form CS/Pal-7 (CP7). Glutaraldehyde (GA) was used to enhance crosslinking between CS, creating the CP7 hydrogel.

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Objective: To review and compare robot-assisted ipsilateral ureteroureterostomy (RALUU) and laparoscopic ipsilateral uretero-ureterostomy (LUU) in terms of efficacy and outcomes.

Methods: Clinical data of 65 children with complete renal ureteral duplication deformity admitted to the First Affiliated Hospital of Zhengzhou University from January 2015 to December 2022 were collected. Among these, 42 patients underwent laparoscopic ureteroureterostomy (LUU), designated as the LUU group, while 23 patients received robot-assisted laparoscopic ureteroureterostomy (RALUU), designated as the RALUU group.

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Objective: To explore the therapeutic value of laparoscopic ureteroureterostomy compared to single ureteral bladder reimplantation in the treatment of pediatric complete renal duplication.

Methods: This retrospective study included 80 pediatric patients with complete renal duplication who underwent surgical treatment at the First Affiliated Hospital of Zhengzhou University from January 2015 to December 2022. Patients were divided into two groups based on the surgical approach: the laparoscopic ureteroureterostomy group (LUU group, n = 45) and the single ureteral bladder reimplantation group (UR group, n = 35).

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BACKGROUNDIn type 1 diabetes (T1D), impaired insulin sensitivity may contribute to the development of diabetic kidney disease (DKD) through alterations in kidney oxidative metabolism.METHODSYoung adults with T1D (n = 30) and healthy controls (HCs) (n = 20) underwent hyperinsulinemic-euglycemic clamp studies, MRI, 11C-acetate PET, kidney biopsies, single-cell RNA-Seq, and spatial metabolomics to assess this relationship.RESULTSParticipants with T1D had significantly higher glomerular basement membrane (GBM) thickness compared with HCs.

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Nanostructures with varying functionalities have been engineered to modulate the fibrillation of amyloid-β (Aβ) peptides. Nevertheless, the chirality effect at the curved nanointerfaces is seldom dissected. In this study, we systematically explored the curvature-modulated chiral effect on the regulation of Aβ fibrillation by using l/d-penicillamine-gold nanoparticles (l/d-PGNPs).

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The intricacy and multifaceted nature of Alzheimer's disease (AD) necessitate therapies that target multiple aspects of the disease. Mesenchymal stromal cells (MSCs) emerge as potential agents to mitigate AD symptoms; however, whether their therapeutic efficacy involves modulation of gut microbiota and the microbiome-gut-brain axis (MGBA) remains unexplored. In this study, we evaluated the effects of three distinct MSCs types-derived from the umbilical cord (UCMSC), dental pulp (SHED), and adipose tissue (ADSC)-in an APP/PS1 mouse model of AD.

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The 2019 coronavirus disease (COVID-19) caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has brought an enormous public health burden to the global society. The duration of the epidemic, the number of infected people, and the widespread of the epidemic are extremely rare in modern society. In the initial stage of infection, people generally show fever, cough, and dyspnea, which can lead to pneumonia, acute respiratory syndrome, kidney failure, and even death in severe cases.

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Craniotomy, an essential neurosurgical operation, poses distinct difficulties in the realm of post-operative care, specifically with regard to the management of wounds. Efficient wound management is critical in order to optimize the surgical outcomes, reduce complications and facilitate a speedier recovery. The purpose of this comprehensive review was to assess contemporary wound management approaches as they pertain to improved recovery following craniotomy.

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Objective: β-Cell dysfunction and insulin resistance magnify the risk of kidney injury in type 2 diabetes. The relationship between these factors and intraglomerular hemodynamics and kidney oxygen availability in youth with type 2 diabetes remains incompletely explored.

Research Design And Methods: Fifty youth with type 2 diabetes (mean age ± SD 16 ± 2 years; diabetes duration 2.

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Tumor metastasis is the major cause of breast cancer morbidity and mortality. It has been reported that the F-box protein FBXO3 functions as an E3 ubiquitin ligase in regulating various biological processes, including host autoimmune, antiviral innate immunity, and inflammatory response. However, the role of FBXO3 in tumor metastasis remains elusive.

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Dynamic membrane contacts between lipid droplets (LDs) and mitochondria play key roles in lipid metabolism and energy homeostasis. Understanding the dynamics of LDs under energy stimulation is thereby crucial to disclosing the metabolic mechanism. Here, the reversible interactions between LDs and mitochondria are tracked in real-time using a robust LDs-specific fluorescent probe (LDs-Tags).

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To cope with fluctuating light conditions, terrestrial plants have evolved precise regulation mechanisms to help optimize light capture and increase photosynthetic efficiency. Upon blue light-triggered autophosphorylation, activated phototropin (PHOT1 and PHOT2) photoreceptors function solely or redundantly to regulate diverse responses, including phototropism, chloroplast movement, stomatal opening, and leaf positioning and flattening in plants. These responses enhance light capture under low-light conditions and avoid photodamage under high-light conditions.

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Introduction: Kidney blood oxygenation level dependent (BOLD) magnetic resonance imaging (MRI) has shown great promise in evaluating relative oxygen availability. This method is quite efficacious in evaluating acute responses to physiological and pharmacologic maneuvers. Its outcome parameter, R2∗ is defined as the apparent spin-spin relaxation rate measured in the presence of magnetic susceptibility differences and it is measured using gradient echo MRI.

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Alkaline nickel-zinc (Ni-Zn) batteries, as traditional rechargeable aqueous batteries, possess an obvious advantage in terms of energy density, but their development has been hindered by the anode-concerned problems, Zn dendrites, self-corrosion, passivation, deformation, and hydrogen evolution reaction (HER). Herein, to solve these problems, a dual protective strategy is proposed toward the anode using ZnO as an initial active material, including a C coating on ZnO (ZnO@C) and a thin poly(vinyl alcohol) (PVA) layer coating on the electrode (ZnO@C-PVA). In a three-electrode configuration, the reversible capacity can reach 600 mAh g for the ZnO@C-PVA.

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Article Synopsis
  • Triple-negative breast cancer (TNBC) is highly aggressive and often resistant to chemotherapy, with breast cancer stem cells (BCSCs) contributing to treatment failure.
  • Research highlights that the F-box protein FBXL2 negatively regulates BCSC stemness, and lower levels of FBXL2 are linked to increased drug resistance in TNBC.
  • Targeting FBXL2 could offer a new therapeutic approach to overcoming paclitaxel resistance and improving outcomes for TNBC patients.
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Herein, an efficient method to prepare sulfonated polyether ether ketone (SPEEK) based cation exchange membranes (CEMs) is developed, where polyethersulfone (PES) is used as an additive. The optimized membrane of 30 wt.%PES/SPEEK-M exhibits a rather low anion permeability and a high ionic conductivity of 9.

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