Publications by authors named "Weihai Liu"

Article Synopsis
  • Spinal disorders affect nearly 5% of the global population and lead to significant socioeconomic costs, highlighting a critical health issue.
  • Neurosurgery has transformed from basic techniques to advanced minimally invasive methods, now incorporating technologies like robotic assistance and advanced imaging for enhanced precision.
  • This review focuses on innovations in imaging, biomaterials, and AI, analyzing their potential impact on surgical accuracy and tissue regeneration, while questioning if these advances represent a true revolution in healthcare or just incremental improvements.
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LACTB is identified as a tumor suppressor in several tumors. However, preliminary study reveals that LACTB is overexpressed in osteosarcoma and indicates poor prognosis. Two missense mutations (rs34317102 and rs2729835) exist simultaneously in 92.

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Background: Current surveillance modalities of osteosarcoma relapse exhibit limited sensitivity and specificity. Although circulating tumor DNA (ctDNA) has been established as a biomarker of minimal residual disease (MRD) in many solid tumors, a sensitive ctDNA detection technique has not been thoroughly explored for longitudinal MRD detection in osteosarcoma.

Methods: From August 2019 to June 2023, 59 patients diagnosed with osteosarcoma at the First Affiliated Hospital of Sun Yat-sen University were evaluated in this study.

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α-Synuclein, a presynaptic neuronal protein encoded by the SNCA gene, is involved in the pathogenesis of Parkinson's disease. Point mutations and multiplications of α-synuclein (A30P and A53T) are correlated with early-onset Parkinson's disease characterized by rapid progression and poor prognosis. Currently, the clinical identification of SNCA variants, especially disease-related A30P and A53T mutants, remains challenging and also time consuming.

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Background- Postoperative delirium is a common complication associated with the elderly, causing increased morbidity and prolonged hospital stay. However, its risk factors in chronic subdural hematoma patients have not been well studied. Methods- A total of 202 consecutive patients with chronic subdural hematoma at Peking University Third Hospital between January 2018 and January 2023 were enrolled.

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The progressive degradation in the trabecular meshwork (TM) is related to age-related ocular diseases like primary open-angle glaucoma. However, the molecular basis and biological significance of the aging process in TM have not been fully elucidated. Here, we established a dynamic single-cell transcriptomic landscape of aged macaque TM, wherein we classified the outflow tissue into 12 cell subtypes and identified mitochondrial dysfunction as a prominent feature of TM aging.

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Background: Risk stratification and personalized care are crucial in managing osteosarcoma due to its complexity and heterogeneity. However, current prognostic prediction using clinical variables has limited accuracy. Thus, this study aimed to explore potential molecular biomarkers to improve prognostic assessment.

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Article Synopsis
  • Primary open-angle glaucoma (POAG) leads to blindness by damaging retinal ganglion cells and the optic nerve, but its exact causes are unclear and effective treatments are lacking.
  • This study aims to discover biomarkers and therapeutic targets for POAG by analyzing gene expression data from multiple datasets, identifying differentially expressed genes (DEGs), and performing various analyses like protein-protein interaction and gene co-expression networks.
  • Key findings include the identification of 43 downregulated and 32 upregulated genes, with central genes like FN1 and DUSP1 emerging as crucial, along with GPX3 and VAV3, which may serve as potential targets for future POAG treatments.
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Background: Paraganglioma in the sellar region is an extremely rare entity, with a limited number of cases reported in the literature. Due to the paucity of clinical evidence, the diagnosis and treatment of paragangliomas in the sellar region remain challenging. Herein, we reported a case of sellar paraganglioma with parasellar and suprasellar extension.

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Article Synopsis
  • Lactate is found in high levels in rapidly dividing cells due to increased glucose breakdown needed for cell growth, but its impact on cell proliferation was unclear.
  • Research revealed that accumulated lactate alters the anaphase promoting complex (APC/C) by inhibiting the SUMO protease SENP1, which affects protein regulation during the cell cycle.
  • This mechanism allows lactate to signal the cell to proceed with division during nutrient-rich conditions, but excessive lactate can lead to faulty APC/C regulation and resistance to anti-mitotic treatments.
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Context: Bunge (Lamiaceae) is a traditional Chinese medicine (TCM) for the treatment of 'thoracic obstruction'. Transient receptor potential canonical channel 1 (TRPC1) is a important target for myocardial injury treatment.

Objective: This work screens the active component acting on TRPC1 from .

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  • Researchers studied brown fat tissue (BAT) in a diverse group of 163 mice to learn how it affects metabolism, unlike past studies which focused on just one type of mouse.
  • They found over 10,000 proteins in BAT and figured out how some work together, identifying 2,578 proteins that help regulate BAT.
  • The team also discovered specific proteins like SFXN5, LETMD1, and ATP1A2 that can help control fat burning and body fat, helping us understand more about how BAT works in metabolism.
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Smoking is a well-known risk factor for cardiovascular diseases. However, the mechanisms behind how smoking leads to vasospasm are not fully elucidated. Endothelin receptors are involved in the pathogenesis of cardiovascular diseases.

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Previous researches have demonstrated the meaning of CTSB for the progress of several tumors, whereas few clues about its immunological characteristic in gliomas. Here we systematically explored its biologic features and clinical significance for gliomas. 699 glioma cases of TCGA and 325 glioma cases of CGGA were respectively included as training and validating cohorts.

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Recent studies have shown that ANXA2 is important in the development of many cancers, while its role in glioma-related immune response remains unclear. We aimed to comprehensively investigate its biological characteristics and clinical value in glioma. We analyzed 699 glioma samples from The Cancer Genome Atlas as training cohort and 325 samples from the Chinese Glioma Genome Atlas as validation cohort.

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Article Synopsis
  • Osteosarcoma (OS) is the most prevalent malignant bone tumor in kids and teens, and the role of the oncogene AHA1 in its progression is not well understood.
  • The study finds that AHA1 is overexpressed in osteosarcoma, correlates with poor patient prognosis, and promotes tumor growth and metastasis by enhancing metabolic activity.
  • AHA1 regulates the IDH1 protein, a new target that may help reverse the negative effects of AHA1 knockdown, offering potential new biomarkers and therapy targets for treating osteosarcoma.
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We conduct a study in developing and validating two radiomics-based models to preoperatively distinguish hepatic epithelioid angiomyolipoma (HEAML) from hepatic carcinoma (HCC) as well as focal nodular hyperplasia (FNH). Totally, preoperative contrast-enhanced computed tomography (CT) data of 170 patients and preoperative contrast-enhanced magnetic resonance imaging (MRI) data of 137 patients were enrolled in this study. Quantitative texture features and wavelet features were extracted from the regions of interest (ROIs) of each patient imaging data.

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Background: Clinical named entity recognition (CNER), whose goal is to automatically identify clinical entities in electronic medical records (EMRs), is an important research direction of clinical text data mining and information extraction. The promotion of CNER can provide support for clinical decision making and medical knowledge base construction, which could then improve overall medical quality. Compared with English CNER, and due to the complexity of Chinese word segmentation and grammar, Chinese CNER was implemented later and is more challenging.

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Background: The present study constructed and validated the use of contrast-enhanced computed tomography (CT)-based radiomics to preoperatively predict microvascular invasion (MVI) status (positive vs negative) and risk (low vs high) in patients with hepatocellular carcinoma (HCC).

Methods: We enrolled 637 patients from two independent institutions. Patients from Institution I were randomly divided into a training cohort of 451 patients and a test cohort of 111 patients.

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Purpose: Malignancy of cancer cells depends on the active transcription of tumor-associated genes. Recently, unique clusters of transcriptional enhancers, termed super-enhancers, have been reported to drive the expression of genes that define cell identity. In this study, we characterized specific super-enhancer-associated genes of osteosarcoma, and explored their potential therapeutic value.

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Article Synopsis
  • The study focused on developing a prediction model to accurately assess lymph node status in patients with intrahepatic cholangiocarcinoma (ICC) to aid in surgical planning.
  • It used data from 106 ICC patients diagnosed between 2011 and 2016, utilizing image features from MR imaging and a support vector machine (SVM) approach to estimate lymph node metastasis probability.
  • Validation with a separate group of 42 patients showed that a nomogram combining SVM scores with clinical factors provided improved accuracy and utility compared to the SVM model alone.
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Epithelioid hepatic angiomyolipoma (Epi-HAML) can easily be misdiagnosed as a malignant tumor such as hepatocellular carcinoma (HCC) because of the low-fat content on imaging. We analyzed and compared the magnetic resonance imaging (MRI) features of Epi-HAML and HCC, which would aid in disease diagnosis. We included 30 pathologically confirmed patients with Epi-HAML and 80 with HCC, who underwent both MRI unenhanced scan and three-phase contrast-enhanced MRI scan.

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