Publications by authors named "Yu Yifei"

The human brain is a complex spiking neural network (SNN) capable of learning multimodal signals in a zero-shot manner by generalizing existing knowledge. Remarkably, it maintains minimal power consumption through event-based signal propagation. However, replicating the human brain in neuromorphic hardware presents both hardware and software challenges.

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The lack of a robust system to reproducibly propagate HRV-C, a family of viruses refractory to cultivation in standard cell lines, has substantially hindered our understanding of this common respiratory pathogen. We sought to develop an organoid-based system to reproducibly propagate HRV-C, and characterize virus-host interaction using respiratory organoids. We demonstrate that airway organoids sustain serial virus passage with the aid of CYT387-mediated immunosuppression, whereas nasal organoids that more closely simulate the upper airway achieve this without any intervention.

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Background Gallium 68 (Ga) pentixafor has emerged as a potential C-X-C chemokine receptor type 4 (CXCR4)-targeted radiotracer for neuroendocrine tumor, yet its application in Cushing disease remains uncertain. Purpose To assess the diagnostic accuracy and value of Ga-pentixafor PET/MRI in localizing adrenocorticotropic hormone (ACTH)-secreting pituitary tumors in Cushing disease. Materials and Methods A prospective single-center study was conducted from March 2023 to February 2024 in participants with Cushing disease scheduled for surgical pituitary tumor resection.

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The existing body of research on battery state of health has identified various degradation modes for the electrolyte, yet very few studies have explored the role of electrolyte colour changes as a diagnostic tool for state of health (SOH). This study investigates the impact of elevated temperatures and its correlation with electrolyte colour changes and capacity fade during cycling. Specifically, the research examines whether cycling cells at elevated temperatures induces noticeable changes in electrolyte colour and whether these changes can be linked to the SOH of the cells.

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Various studies have shown that it is necessary to estimate the drivers' vigilance to reduce the occurrence of traffic accidents. Most existing EEG-based vigilance estimation studies have been performed on intra-subject and multi-channel signals, and these methods are too costly and complicated to implement in practice. Hence, aiming at the problem of cross-subject vigilance estimation of single-channel EEG signals, an estimation algorithm based on capsule network (CapsNet) is proposed.

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The different fate of liposomes among species has been discovered and mentioned in many studies, but the underlying mechanisms have not been explored. In the present work, we concentrated on the fate of PEGylated liposomes (sLip) in three commonly used species (mice, rats, and dogs). It was exhibited that the accelerated blood clearance (ABC) phenomenon and hypersensitivity in large animals (beagle dogs) were much more significant than that in rodents.

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Article Synopsis
  • * The aging immune system suffers declines in its innate and adaptive responses, which contribute to the development of diseases like infections, autoimmune disorders, and cancer.
  • * Promising intervention strategies, such as dietary changes and immunomodulatory therapies, aim to enhance immune function and reduce inflammation, potentially lowering the risk of age-related chronic diseases.
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  • - Probiotics, prebiotics, and postbiotics impact B-cell-related diseases by boosting immune function, especially B cells that are key for producing antibodies and immune memory.
  • - These substances can help manage allergies, autoimmune diseases, and inflammation by supporting gut health and interacting with the immune system.
  • - More research is needed to uncover how these dietary components specifically influence B cells, which could lead to better treatments for B-cell-related conditions.
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Poly (lactic-co-glycolic acid) (PLGA) has been widely used as drug delivery carrier or scaffold for bone repair due to its good biocompatibility, biodegradability, and degradation rate controllability. However, defects, like acidic degradation by-products, are associated with PLGA and restrict its practical applications. Jade powder, leftover from jade polishing process, is a natural material rich in elements of Ca, Si, and Mg while biocompatible and antibacterial.

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Objective: The aim of this study was to investigate the gut microbial signatures and related pathophysiological implications in patients with Cushing's disease (CD).

Design And Methods: Twenty-seven patients with CD and 45 healthy controls were enrolled. Based on obtained metagenomics data, we performed correlation, network study, and genome interaction group (GIG) analysis.

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  • The electrochemical performance of the zinc (Zn) anode in water-based electrolytes is significantly affected by the chemistry at the interface between the anode and electrolyte.
  • By using aspartame (APM) molecules, this study introduces a unique interaction that helps stabilize the Zn surface, preventing dendrite growth and side reactions.
  • As a result, the Zn anode shows improved longevity with a cycle lifespan of 5100 hours, high efficiency of 99.73%, and enhanced performance in full cells, underscoring the benefits of APM in maintaining interface stability.
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  • Craniopharyngioma (CP) is a benign brain tumor that can severely impact the hypothalamus, leading to serious health issues like obesity and cognitive impairments.
  • Research shows that patients with CP have an altered gut microbiome, with higher levels of certain bacteria (Clostridium, Eubacterium) linked to negative health effects like dyslipidemia and cognitive decline.
  • The study also found that changes in the microbiome are connected to up-regulation of purine metabolism and redox imbalances, suggesting these factors may contribute to the development and worsening of hypothalamic comorbidities associated with CP.
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Electroencephalography (EEG) artifacts are very common in clinical diagnosis and can heavily impact diagnosis. Manual screening of artifact events is labor-intensive with little benefit. Therefore, exploring algorithms for automatic detection and classification of EEG artifacts can significantly assist clinical diagnosis.

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  • Silent corticotroph adenoma (SCA) is a type of aggressive pituitary tumor that can recur even after surgery, and this study aims to analyze long-term outcomes after surgery and suggest optimal post-operative treatments.
  • Researchers reviewed data from 367 patients who underwent endoscopic endonasal surgery, categorizing them based on the extent of tumor removal; they measured event-free survival rates across different treatment strategies over an average follow-up period of about 41 months.
  • The study found that patients who had a gross total resection (complete tumor removal) had the best outcomes, with lower rates of recurrence compared to those with near total resection or subtotal resection followed by observation or radiation therapy.
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  • - The brain functions dynamically by reconfiguring itself to associate new inputs with past experiences, while AI models are static and don't have this ability, using separate memory and processing systems.
  • - The authors propose a new approach combining hardware and software in a dynamic neural network that uses memristors to create a semantic memory system, allowing for the association of new data with past experiences.
  • - Their designs, tested on ResNet and PointNet++ for image and 3D point classification, show high accuracy comparable to traditional software methods, and result in significant reductions in both computational budget and energy consumption.
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  • * This study uses advanced techniques to analyze gas behavior during the formation process of SIBs, revealing that gas evolution occurs significantly during the discharge phase and is influenced by the porous structure of the hard carbon.
  • * The research also finds that incorporating 5A molecular sieves reduces gas adsorption on the anode, improving the battery's overall performance and providing valuable insights into the solid electrolyte interphase (SEI) formation in SIBs.
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  • Most nanomedicines, like PEGylated liposomal doxorubicin, accumulate mainly in the liver, but understanding their behavior is complex and unclear.
  • In this study, researchers found that Kupffer cells in the liver capture and transport the liposomal doxorubicin to liver cells, which helps the drug accumulate effectively.
  • The work highlights the significant role of Kupffer cells in managing how these liposomal drugs are distributed and eliminated in the liver, giving insights for future nanomedicine development.
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  • - Liposomes are effective drug delivery systems for cancer treatment, but PEGylated liposomal doxorubicin (sLip/DOX) causes skin toxicities due to their accumulation in the dermis.
  • - The interaction between liposomes and neutrophils is crucial for liposome movement into the skin, as neutrophils recognize and capture liposomes via specific receptors.
  • - By inhibiting complement activation or altering liposome surface properties, researchers found ways to reduce neutrophil uptake of liposomes, which may help decrease skin toxicity associated with sLip/DOX use.
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  • Liposomes are highly studied for targeted drug delivery, but their effectiveness can be impacted by liver conditions, which are often overlooked in research.
  • This study focused on how drug-induced liver injury (DILI) affects the pharmacokinetics and distribution of liposomes using animal models of liver damage.
  • Results showed that liposomes have longer circulation in the blood and greater accumulation in the liver during DILI, with macrophages remaining key players in their uptake, raising both opportunities and concerns for clinical applications in liver-injured patients.
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  • Al-PILC effectively catalyzes the oxidation of Mn(II) in water, showing that just 1.5 mg/L of chlorine can reduce Mn(II) levels significantly with a proper dosage of Al-PILC.
  • The oxidation rate of Mn(II) is influenced by factors such as catalyst porosity, chlorine and catalyst dosages, pH levels, and temperature, with optimal conditions leading to better results.
  • The research highlights the complex oxidation process involving various mechanisms, including self-catalytic effects, and lays the groundwork for developing more efficient catalysts for similar water treatment applications.
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Purpose: Variants in the Aryl hydrocarbon receptor-interacting protein (AIP) gene have been identified in sporadic acromegaly and pituitary gigantism, especially in young patients, with a predisposition to aggressive clinical phenotype and poor treatment efficacy. The clinical characteristics of patients with sporadic acromegaly and pituitary gigantism as well as AIP variants in Han Chinese have been rarely reported. We aimed to identify AIP gene variants and analyze the clinical characteristics of patients with sporadic acromegaly and pituitary gigantism in Han Chinese.

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  • Testicular adrenal rest tumors (TART) are common in patients with congenital adrenal hyperplasia (CAH) and can lead to infertility; early hormonal treatment is needed but must be balanced to avoid excessive glucocorticoids.* -
  • This study created a scoring system based on ultrasound features of TART to identify male CAH patients at high risk for infertility, using grayscale and power Doppler ultrasound to assess testicular lesions.* -
  • Results showed a strong negative correlation between lesion scores and key semen parameters, indicating that higher lesion scores are linked to lower sperm concentration and motility, supporting the use of ultrasound for better management of fertility in CAH patients.*
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Background: Diabetic cardiomyopathy (DCM), a serious complication of diabetes, leads to structural and functional abnormalities of the heart and ultimately evolves to heart failure. IL-37 exerts a substantial influence on the regulation of inflammation and metabolism. Whether IL-37 is involved in DCM is unknown.

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  • Diabetic retinopathy (DR) is a severe complication of diabetes linked to risk factors like high blood sugar, hypertension, and high cholesterol, with hyperglycemia being the most critical.
  • High-sucrose diets increase blood glucose levels, leading to oxidative stress and inflammation that damage the retina and can result in vision loss.
  • Early prevention through dietary changes, particularly reducing sugar intake, is essential to prevent DR-related vision loss and improve patients' quality of life by promoting better eating habits.
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  • There’s growing interest in PEGylated lipid-based nanocarriers, with their interaction with plasma proteins being crucial for their effectiveness in drug delivery.
  • Discoid-shaped lipid nanodiscs (sNDs) were created from various phospholipids to study how these lipid compositions affect stability, interactions with serum proteins, and how they behave in the body.
  • Findings revealed that while all sNDs remained stable over time, the stability in blood varied, with certain compositions like POPG causing faster blood clearance, and the POPC-based nanodisc showing promise for targeted delivery to the brain due to higher apolipoprotein E adsorption.
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