Publications by authors named "Yi Shan"

Background: Preliminary small-sample studies suggest that silent magnetic resonance angiography (MRA) has an advantage over time-of-flight MRA (TOF MRA) in the characterization of brain arteriovenous malformation (BAVM), but did not examine whether the imaging performance of silent MRA was affected by the intrinsic features of BAVM or common clinical factors. This study sought to compare silent MRA and TOF MRA in terms of the visualization and grading of BAVMs in various clinical settings.

Methods: In total, 85 participants (50 males, 35 females; mean age: 33.

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  • The study analyzed the characteristics and outcomes of COVID-19 patients during a Beijing Omicron outbreak, focusing on the impact of vaccination status on clinical severity and survival rates.
  • Data was collected from 1495 cases, showing that vaccination, especially booster shots, significantly reduced disease severity and increased survival time compared to non-vaccinated individuals.
  • Results indicated that elderly patients with pre-existing health conditions had a higher risk of severe illness and death, highlighting the importance of vaccination in this vulnerable population.
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  • - About 25% of Chinese individuals experience anxiety, but many go undiagnosed and untreated, highlighting the need for better recognition and healthcare strategies.
  • - This study analyzed concerns related to anxiety from a Chinese health platform, using advanced topic modeling techniques to identify key themes in public discourse.
  • - Five main anxiety topics were identified: tinnitus phobia, neurosis, various disorders (like sleep and bipolar), social phobia, and health-related worries, indicating diverse concerns that could inform healthcare interventions.
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Traditional Chinese medicine (TCM) contributes significantly to human health. Owing to the complexity of the ingredients in TCM, it is necessary to conduct basic research on effective substances and identify toxic substances to control the safety of medication. Cell membrane chromatography (CMC) is an important method for identifying target components in complex systems.

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  • * Systematic tests revealed that as granite weathers, properties like internal friction and cohesion decrease, with completely weathered granite showing higher dynamic strength than residual soil.
  • * As weathering progresses, significant mineral changes occur, enriching the soil with aluminum and iron, and leading to structural deterioration, with mechanical parameters showing a strong correlation to chemical weathering indicators.
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  • The study investigates the oxygen extraction fraction (OEF), an important indicator of brain metabolism, by comparing single-delay and multi-delay arterial spin-labeling methods using advanced imaging techniques.
  • A total of 20 healthy participants underwent various imaging sequences, revealing that multi-delay arterial spin-labeling produced significantly lower OEF estimates compared to single-delay methods.
  • The results also indicated a significant inverse relationship between OEF and venous cerebral blood volume, suggesting complex interactions in brain blood flow and metabolism.
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Chemodynamic therapy (CDT) can induce cancer cell death through hydroxyl radicals (·OH) generated from Fenton or Fenton-like reactions. Compared with traditional therapies, CDT effectively overcomes inevitable drug resistance and exhibits low side effects. However, clinical application still faces challenges, primarily due to insufficient ·OH generation and the short-lifetime of ·OH in vivo.

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Nebivolol hydrochloride is a third-generation β-blocker commonly used to treat cardiovascular diseases. However, it has been reported to induce allergic reactions in clinical use which deserves much attention. Therefore, this study focused on the ability of two isomers of nebivolol and chiral isomer impurities to induce allergic reactions.

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Background: Transcranial alternating current stimulation (tACS) could improve cognition in patients with Alzheimer's disease (AD). However, the effects of tACS on brain activity remain unclear.

Objective: The purpose is to investigate the change in regional neuronal activity after tACS in AD patients employing resting-state functional magnetic resonance imaging (rs-fMRI).

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Background: Ulinastatin has been applied in a series of diseases associated with inflammation but its clinical effects remain somewhat elusive.

Objective: We aimed to investigate the potential effects of ulinastatin on organ failure patients admitted to the intensive care unit (ICU).

Methods: This is a single-center retrospective study on organ failure patients from 2013 to 2019.

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Background: The causes of migraine remain unclear. Evidence suggests that the MAPK and PI3K/Akt signaling pathways play a role in migraine pathogenesis. However, studies on genetic polymorphisms in the two pathways associated with migraine are still limited.

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Aim: Systemic amyloidosis is a condition in which misfolded amyloid fibrils are deposited within tissues. Amyloid myopathy is a rare manifestation of systemic amyloidosis. However, whether skeletal muscle involvement is underestimated and whether such deposition guarantees clinical and pathological myopathic features remain to be investigated.

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  • Renal interstitial fibrosis (RIF) plays a significant role in chronic kidney disease (CKD), but its underlying mechanisms are not well understood.
  • A study identified a circular RNA called circInpp5b, which is decreased in kidney tissues and tubular cells undergoing RIF, suggesting its potential involvement in the process.
  • Overexpressing circInpp5b in experiments helped reduce RIF and extracellular matrix buildup by targeting the DDX1 protein for degradation, indicating a protective role against kidney fibrosis.
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The development of bioorthogonal activation in drug release represents a promising avenue for precise and safe anticancer treatment. However, two significant limitations currently hinder their clinical application: i) the necessity for separate administration of the drug precursor and its corresponding activator, leading to poor drug accumulation and potential side effects; ii) the reliance on exogenous metal or organic activators for triggering bioorthogonal activation, which often exhibit low efficiency and systemic toxicity when extending to living animals. To overcome these limitations, a nitric oxide (NO)-mediated bioorthogonal codelivery nanoassembly, termed TTB-NH@PArg, which comprises a precursor molecular (TTB-NH) and amphipathic polyarginine (PArg) is developed.

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  • Type I photosensitizers (PSs) are crucial for photodynamic therapy (PDT) due to the challenges posed by hypoxic conditions, but they are less explored compared to Type II PSs.
  • The study introduces a method combining Type II PSs with carvacrol (CA), which turns into thymoquinone (TQ) to enhance the production of superoxide radicals through electron transfer.
  • This novel approach demonstrates effective Type I PDT against S. aureus in low-oxygen environments, achieving a 99.6% antibacterial rate in mice, showcasing a practical way to improve hypoxic tolerance in traditional Type II PSs.
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The histamine H1 receptor (H1R) plays a pivotal role in allergy initiation and undergoes the necessity of devising a high-throughput screening approach centered on H1R to screen novel ligands effectively. This study suggests a method employing styrene maleic acid (SMA) extraction and His-tag covalent bonding to immobilize H1R membrane proteins, minimizing the interference of nonspecific proteins interference while preserving native protein structure and maximizing target exposure. This approach was utilized to develop a novel material for high-throughput ligand screening and implemented in cell membrane chromatography (CMC).

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We conducted a phase I, randomized, double-blind, placebo-controlled trial including healthy adults in Sui County, Henan Province, China. Ninety-six adults were randomly assigned to one of three groups (high-dose, medium-dose, and low-dose) at a 3:1 ratio to receive one vaccine dose or placebo. Adverse events up to 28 days after each dose and serious adverse events up to 6 months after all doses were reported.

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Background: The aim of this study was to exploit integrated PET/MRI to simultaneously evaluate the morphological, component, and metabolic features of advanced atherosclerotic plaques and explore their incremental value.

Methods: In this observational prospective cohort study, patients with advanced plaque in the carotid artery underwent F-FDG PET/MRI. Plaque morphological features were measured, and plaque component features were determined via MRI according to AHA lesion-types.

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Multiple myeloma (MM) remains an incurable hematological malignancy demanding innovative therapeutic strategies. Targeting MYC, the notorious yet traditionally undruggable oncogene, presents an appealing avenue. Here, using a genome-scale CRISPR-Cas9 screen, we identify the WNK lysine-deficient protein kinase 1 (WNK1) as a regulator of MYC expression in MM cells.

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The most common chronic liver illness, non-alcoholic fatty liver disease (NAFLD), refers to a range of abnormalities of the liver with varying degrees of steatosis. When the clinical symptoms including liver damage, inflammation, and fibrosis, are added to the initial steatosis, NAFLD becomes non-alcoholic steatohepatitis (NASH), the problematic and severe stage. The diagnosis of NASH at the right time could therefore effectively prevent deterioration of the disease.

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Background: With the number of people with dementia dramatically increasing over time and dementia becoming a major health concern worldwide, scales have been developed to assess the stigma socially attached to this neurodegenerative disorder. There are, however, almost no available methods and assessment constructs for person-centered translation of dementia public stigma scales.

Objective: To develop such a method and such an assessment construct by translating the Dementia Public Stigma Scale (DPSS) into standard written Chinese.

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