Publications by authors named "Ji'an Li"

Purpose: We downloaded the gene expression profiles of patients with diabetic nephropathyfrom the GEO database and combined it with differential gene analysis of rat transcriptome,our study employed animal models to examine the role of key hub genes in diabetic nephropathy and to pinpoint significant gene regulation in this disease.

Methods: An examination of differential expression was performed using the online analysis tool GEO2R and the DN-related datasets GSE30528 and GSE1009 obtained from the GEO database. A comparison of gene expression between the normal and diabetic nephropathy groups was conducted using the RNA-seq technique.

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Purpose: We aimed to evaluate the effects of autologous serum plus artificial tears on corneal sensation and tear film stability in patients with mild to moderate xerophthalmia after cataract surgery.

Methods: A total of 150 patients with mild to moderate xerophthalmia after one-time cataract surgery from March 2022 to September 2023 were selected and randomly divided into a control group (n = 75) and a study group (n = 75). The control group was treated with artificial tears (polyvinyl alcohol eye drops), while the study group was given autologous serum plus artificial tears.

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Article Synopsis
  • Type-2 diabetes mellitus (T2DM) is linked to insulin resistance and insufficient insulin release, and the study investigates the traditional Chinese medicine extract AMK-CCL for its potential therapeutic effects on this condition using a diabetic fly model.
  • The active components of AMK-CCL were analyzed, and various metabolic parameters were measured to assess its impact on glucose regulation and metabolic health in diabetic flies.
  • The results show that AMK-CCL significantly improved insulin sensitivity by enhancing PI3K/Akt signaling, leading to better glucose uptake and metabolic outcomes, indicating its potential for clinical application in treating T2DM.
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Backpropagation (BP), a foundational algorithm for training artificial neural networks, predominates in contemporary deep learning. Although highly successful, it is often considered biologically implausible. A significant limitation arises from the need for precise symmetry between connections in the backward and forward pathways to backpropagate gradient signals accurately, which is not observed in biological brains.

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Pyrroindomycins (PYRs) represent the only spirotetramate natural products discovered in nature, and possess potent activities against methicillin-resistant and vancomycin-resistant . Their unique structure and impressive biological activities make them attractive targets for synthesis and biosynthesis; however, the discovery and generation of new PYRs remains challenging. To date, only the initial components A and B have been reported.

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Purpose: Type 2 diabetes mellitus (T2DM) is associated with reduced insulin uptake and glucose metabolic capacity. Bunge (PDB) has been used to treat T2DM; however, the fundamental biological mechanisms remain unclear. This study aimed to understand the active ingredients, potential targets, and underlying mechanisms through which PDB treats T2DM.

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Objective: Intestinal flora homeostasis in rats with type 2 diabetes mellitus (T2DM) was evaluated to explore the effects of total saponins (TAS) on hepatic insulin resistance (IR).

Methods: Six-week-old male Sprague-Dawley rats were fed high-fat and high-sugar diet for 4 weeks and intraperitoneally injected with streptozotocin to induce T2DM, and they were then randomly divided into control, model, metformin, and TAS groups. Stool, serum, colon, and liver samples were collected after 8 weeks of drug administration for relevant analyses.

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As an excellent fusion tag for expressing heterologous proteins, yeast SUMO (small ubiquitin-related modifier) has unique advantages such as improving solubility, promoting stability, and reducing degradation, but it lacks a simple and rapid purification method. Camelid single-domain antibodies (VHHs or nanobodies) show great promise as an efficient tool in analytical application. In this study, VHHs against SUMO protein were isolated for the first time using biopanning of an immune camelid nanobody library.

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Article Synopsis
  • Synaptic plasticity incorporates various biochemical processes that enhance memory capacity, especially when dealing with imprecise variables.
  • The study demonstrates that complex synapses allow for the storage and recognition of many faces, showing a linear relationship with synapse count and a quadratic one with neuron count.
  • Complex synapses outperform simpler ones in memory tasks, suggesting their potential for practical applications like detecting face familiarity.
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Insulin resistance (IR) is a pivotal pathological characteristic that affects the occurrence and development of type 2 diabetes mellitus (T2DM). Thus, the effective control of IR is of great significance for diabetes prevention and treatment. Traditional Chinese medicine (TCM) represents a valuable tool handed down to the world by the Chinese nation and has a long history of use for diabetes clinical therapy.

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  • The paper introduces a new method for predicting surface effect parameters using experimental data from polyacrylonitrile (PAN) nanowires produced by electrospinning.
  • The study reveals that the effective Young's modulus of these nanowires increases as their diameter decreases, observed through contact atomic-force microscopy (C-AFM) experiments.
  • The proposed method improves upon previous studies by incorporating the influence of surface energy on bending, enhancing the accuracy of predictions for nanowire surface effects, which is important for designing nanostructures and related devices.
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Objective: To explore the molecular mechanism underpinning the action by investigating its effect on glycogen content and AKT (also known as protein kinase B)/glycogen synthase kinase 3β (GSK- 3β) pathway in the liver of rats with type 2 diabetic induced by high-fat diet.

Methods: The rat model of type 2 diabetes was induced by high-fat diet and multiple low-dose streptozotocin injection. Diabetic rats were divided into five groups: the model control group, the Metformin group, spleen-kidney supplementing formula groups of low, medium and high doses.

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  • Classical reinforcement learning (CRL) has been commonly used in neuroscience and psychology, but quantum reinforcement learning (QRL) has yet to be empirically tested on human decision-making despite its strong performance in simulations.
  • The study compared QRL and CRL models using data from healthy and cigarette-smoking subjects during the Iowa Gambling Task.
  • Results showed QRL models outperformed the best CRL models and identified quantum-like internal-state variables in the brain, indicating that QRL can effectively explain value-based decision-making both behaviorally and neurologically.
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Pingyangmycin (PYM) and boanmycin (BAM), two individual components of bleomycin (bleomycin A5 and bleomycin A6), are glycopeptide antitumor antibiotics. An efficient procedure for the preparation of PYM and BAM from Streptomyces verticillus var. pingyangensis fermentation broth using macroporous cation-exchange (MCE) resin followed by medium-pressure preparative liquid chromatography (MPLC) based on monodisperse poly(styrene-co-divinylbenzene) (p(st-dvb)) microspheres was investigated in this paper.

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Cell death plays a pivotal role in animal development and tissue homeostasis. Dysregulation of this process is associated with a wide variety of human diseases, including developmental and immunological disorders, neurodegenerative diseases and tumors. While the fundamental role of JNK pathway in cell death has been extensively studied, its down-stream regulators and the underlying mechanisms remain largely elusive.

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Purpose: β-adrenoceptor antagonist (β-blocker) may have potential in the treatment of septic shock and sepsis. However, the relevant research findings are still controversial.

Methods: We conducted a systematic review and meta-analysis to explore the efficacy of β-blocker in patients with septic shock and sepsis.

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Background: Spleen-Kidney Supplementing Formula (SKSF), composed of 6 raw Chinese herbs and proposed based on the therapeutic principle of supplementing spleen-kidney and clearing the extra heat of stomach-lung, is effective in the treatment of type 2 diabetes mellitus (T2DM).

Aim: This study aims to investigate the mechanism of SKSF to alleviate renal fibrosis in diabetic rats.

Methods: T2DM model was induced by high-fat diet and multiple injections of low-dose streptozotocin.

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  • Value evaluation and self-control are crucial in making behavioral choices, but the link between these processes and decision-making over time is still unclear.
  • Key brain regions like the ventromedial prefrontal cortex (vmPFC), striatum, and dorsolateral prefrontal cortex (dlPFC) were studied using functional magnetic resonance imaging (fMRI) in a delayed discounting task with three different samples.
  • The results showed that both vmPFC and dlPFC play significant roles in choice-making for healthy individuals, while individuals with addiction displayed lower decision-making accuracy, suggesting these brain areas could be critical for understanding and treating impulsive behaviors.
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Background: formula (WSZYF), composed of , , , and , is effective in the treatment of type 2 diabetes mellitus (T2DM).

Aim: In this study, we aimed to explore the effects and the underlying mechanisms of WSZYF on inhibiting pancreatic cell apoptosis and improving insulin resistance (IR) in T2DM.

Methods: A T2DM model was induced by Goto-Kakizaki diabetes prone rats.

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This study aimed to investigate the effect of Modified Sanzi Yangqin Decoction on tyrosine phosphorylation of insulin receptor substrate 1 (IRS-1) in skeletal muscle of type 2 diabetic rats. The rat model of type 2 diabetes was induced by high-fat diet and multiple low-dose streptozotocin injections. Diabetic model rats were randomly divided into 5 groups: the model control group, the metformin group, and Modified Sanzi Yangqin Decoction groups of low, medium, and high doses.

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formula (WSZYF) is an effective traditional Chinese medicine in the treatment of type 2 diabetes mellitus (T2DM). This study aimed to identify the effects and underlying mechanisms of WSZYF on improving skeletal muscle insulin resistance in T2DM. An animal model of T2DM was induced by Goto-Kakizaki diabetes prone rats fed with high fat and sugar for 4 weeks.

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Objective: To investigate the anti-tumor activity and molecular mechanism of Tonglian Decoction (, TLD) on esophageal carcinoma Eca109 cells.

Methods: Eca109 cells were treated with TLD and its separated formulae, including the clearing-heat and detoxification formula (Q), activating-blood and promoting-qi formula (H) and nourishing-yin and blood formula (Z). Cell proliferation was measured using the 3-(4,5-dimethyl-2-thiazolyl)-2,5-diphenyl-2-H-tetrazolium bromide assay, cell morphology was observed using a microscope, the cell cycle was measured using flow cytometry and the activity of the nuclear factor-kappa B (NF-κB) signal pathway was detected by Western blot.

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Enterovirus 71 (EV71) has caused many outbreaks of diseases among children worldwide since it was first reported in 1974, but its mechanism of pathogenesis remains unclear. This study was designed to investigate the possible association of the IL-4 -589C/T gene polymorphism with severity of EV71 infection in Chinese children. The IL-4 -589C/T gene polymorphism was detected in EV71-infected subjects (n = 185), including those with mild cases (n = 102) and severe cases (n = 83) as well as healthy controls (n = 234), using an improved multiplex ligation detection reaction (iMLDR) technique.

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