Publications by authors named "Heyu Zhang"

Objectives: To investigate the prevalence of BRAF, SMO, KRAS, HRAS, NRAS, FGRF2, and CTNNB1 gene mutations in Chinese ameloblastoma (AM) patients and explore their associations with clinical characteristics.

Materials And Methods: DNA was extracted from 89 formalin-fixed paraffin-embedded AM samples (9 unicystic and 80 conventional). PCR and Sanger sequencing were used to detect mutations, followed by statistical analysis to assess correlations between mutations and clinical variables.

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Background: Pharmacological treatments for fibrocalcific aortic valve stenosis (FCAVS) have been elusive for >50 years. Here, we tested the hypothesis that reactivation of oxidized sGC (soluble guanylate cyclase), the primary receptor for nitric oxide, with ataciguat is a safe and efficacious strategy to slow progression of FCAVS.

Methods: We used quantitative real-time reverse transcription polymerase chain reaction, Western blotting, and immunohistochemistry to characterize sGC signaling and the biological effects of ataciguat on signaling cascades related to nitric oxide, calcification, and fibrosis in excised human aortic valve tissue, aortic valve interstitial cells, and mouse aortic valves.

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In light of the lack of reliable molecular markers for odontogenic myxoma (OM), the detection of copy number variation (CNV) may present a more objective method for assessing ambiguous cases. In this study, we employed multiregional microdissection sequencing to integrate morphological features with genomic profiling. This allowed us to reveal the CNV profiles of OM and compare them with dental papilla (DP), dental follicle (DF), and odontogenic fibroma (OF) tissues.

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Background: Lactylation, a post-translational modification, is increasingly recognized for its role in cancer progression. This study investigates its prevalence and impact in oral squamous cell carcinoma (OSCC).

Results: Immunohistochemical staining of 81 OSCC cases shows lactylation levels correlate with malignancy grading.

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Article Synopsis
  • - The study investigates how COVID-19 impacts outcomes in acute ischemic stroke (AIS) patients, revealing severe neurological symptoms and increased mortality associated with COVID-19 infections.
  • - Among 109 AIS patients, those infected with COVID-19 showed significantly elevated levels of inflammatory and coagulation markers, correlating with unfavorable outcomes.
  • - The research suggests that the mechanism linking COVID-19 to poor stroke outcomes involves a pathway of inflammation and coagulation, helping to clarify the detrimental effect of COVID-19 on AIS patients.
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In recent years, a significant breakthrough has emerged in biology, the identification of lactylation, a novel post-translational process. This intriguing modification is not limited to a specific class of proteins but occurs across a diverse range, including histones, signalling molecules, enzymes, and substrates. It can exert a broad regulatory role in various diseases, ranging from developmental anomalies and neurodegenerative disorders to inflammation and cancer.

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  • Loss of chromosome 9p is a key indicator of the progression from oral leukoplakia to head and neck squamous cell carcinoma (HNSCC), which affects patient prognosis, but current methods to assess this loss are limited.
  • This study created a pathomics-based AI model called 9PLP, using data from 333 cases to effectively predict 9p loss in OLK and HNSCC images, achieving high accuracy in both prediction and patient prognosis.
  • The development of the 9PLP model represents a significant advancement in utilizing deep learning for genomic prediction, potentially improving clinical management and outcomes for HNSCC patients in the future.
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  • The study focuses on the role of oral microbiota in oral potentially malignant disorders (OPMDs), gathering samples from patients with different conditions to understand their microbial communities.
  • Researchers analyzed oral biopsies from patients with various lesions and identified significant differences in microbial richness and diversity, particularly noting that olk showed the highest richness while PVL-SCC was similar to controls.
  • The findings indicate that each disorder has unique dominant bacterial species, providing insights into the disease mechanisms and potential avenues for future research.
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Circular RNAs (circRNAs) are involved in several neurological disorders; however, the mechanisms underlying their involvement remain to be clarified. We attempted to explore the expression profiles of circRNAs and their potential functions and mechanisms in the pathogenesis of intracerebral hemorrhage (ICH) in Northern Chinese males. The microarray results showed that 50 circRNAs were significantly upregulated, while 194 circRNAs were significantly downregulated in ICH patients compared with healthy controls (p < 0.

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The combination of memory forensics and deep learning for malware detection has achieved certain progress, but most existing methods convert process dump to images for classification, which is still based on process byte feature classification. After the malware is loaded into memory, the original byte features will change. Compared with byte features, function call features can represent the behaviors of malware more robustly.

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  • Hemorrhagic transformation (HT) is a serious complication following an acute ischemic stroke and can occur spontaneously or after treatment, and this study investigates the link between fibrinogen levels and spontaneous HT (sHT) versus HT after treatment (tHT).
  • The study involved 423 patients with HT and 423 matched patients without HT, measuring fibrinogen levels shortly after admission and categorizing HT based on imaging outcomes.
  • Results showed that higher fibrinogen levels were linked to more severe sHT in patients without atrial fibrillation, while lower fibrinogen levels were associated with increased severity in tHT cases, indicating a complex relationship between fibrinogen levels and hemorrhagic outcomes.
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Unlabelled: The role of mast cell (MC), a common myeloid-derived immune cell, in the development of oral squamous cell carcinoma (OSCC) is unclear. The aim of this study was to investigate MC infiltration in oral precancer and oral cancer. The evaluation of immune cell infiltration and its association with prognosis in OSCC used RNA sequencing and multiple public datasets.

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Exploring and developing new rechargeable halide-ion batteries plays an important role in the advancement and growth of the ion battery family. Here, we systematically explored the feasibility of single-layer MXenes and their hydrogenated derivatives as electrode materials for halide-ion batteries via first-principles theory. The calculated results indicate that halide ions (T ions) can be stably and efficiently adsorbed on the surfaces of MX and MXH, with theoretical specific capacities ranging from 227 to 497 mAh g.

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Objective: To expand the clinical phenotype and mutation spectrum of familial mesial temporal lobe epilepsy (FMTLE) and provide a new perspective for exploring the pathological mechanisms of epilepsy caused by leucine-rich glioma inactivated 1 (LGI1) variants.

Methods: We reported clinical data from two families with FMTLE and screened patients for variants in the LGI1 gene using Whole-exome sequencing and Sanger sequencing. The clinical features of FMTLE were analysed.

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Objective: The aim of our study was to analyze the characteristics of patients with autoimmune encephalitis (AE) to identify prognostic factors associated with the development of drug-resistant epilepsy (DRE).

Methods: In this retrospective observational cohort study, we enrolled adult patients with AE between January 2016 and December 2022. The patients were categorized into two groups based on the presence or absence of DRE at the last follow-up.

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Objectives: To compare amino acid metabolism patterns between HPV-positive and HPV-negative head and neck squamous cell carcinoma (HNSCC) patients and identify key genes for a prognostic model.

Design: Utilizing the Cancer Genome Atlas dataset, we analyzed amino acid metabolism genes, differentiated genes between HPV statuses, and selected key genes via LASSO regression for the prognostic model. The model's gene expression was verified through immunohistochemistry in clinical samples.

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As of 2022, China's rural sewage treatment rate is only approximately 31 %. Rapid rural development has led to higher demand. However, China's rural areas are complex and face many problems, such as uneven economic development, population distribution, and water availability.

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A new fault diagnosis approach based on bearing current signals is proposed in this paper. First, in view of strong background noise of the current signal, the variational modal decomposition method is applied to decompose the bearing current signal to obtain multiple intrinsic mode functions, and then the intrinsic mode functions are constructed as the input feature vector according to the kurtosis. Second, to avoid the influence of random forest parameters on the random forest classifier, a random forest faulty bearing diagnostic model optimized by the whale algorithm is established.

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Odontogenic keratocyst (OKC) is a common jaw cyst with a high recurrence rate. OKC combined with basal cell carcinoma as well as skeletal and other developmental abnormalities is thought to be associated with Gorlin syndrome. Moreover, OKC needs to be differentiated from orthokeratinized odontogenic cyst and other jaw cysts.

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Oral squamous cell carcinoma (OSCC) is the predominant type of oral cancer, while some patients may develop oral multiple primary cancers (MPCs) with unclear etiology. This study aimed to investigate the clinicopathological characteristics and genomic alterations of oral MPCs. Clinicopathological data from patients with oral single primary carcinoma (SPC, n = 202) and oral MPCs (n = 34) were collected and compared.

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Article Synopsis
  • The study investigated how different frying times (0 to 10 minutes) affect water distribution and volatile compounds in fried chicken.
  • A total of 40 volatile compounds were identified, with 28 being key compounds related to flavor and aroma, which changed significantly with frying time.
  • The findings indicate specific correlations between water content and the presence of certain compounds, providing insights to improve the quality of fried chicken products.
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Objective: To explore the clinical manifestations of glutamic acid decarboxylase 65 (GAD65) antibody-positive patients with extraocular symptoms and the possible mechanism.

Method: Assays for the presence of GAD65 antibodies were performed on patients' serum and cerebral spinal fluid (CSF). The brain and ocular structures involved in eye movement were assessed via magnetic resonance imaging (MRI).

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Objectives: This study explored associations between histological features of dysplasia and malignant transformation, as well as genomic copy number alterations.

Materials And Methods: Overall, 201 samples were collected from patients of oral leukoplakia. The associations of dysplastic features with malignant transformation and copy number alterations were investigated by Cox proportional hazards regression analysis and the Mann-Whitney U-test.

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Article Synopsis
  • - The study focuses on understanding the features of childhood head and neck carcinoma, a rare but significant cancer affecting kids, as research in this area is limited.
  • - Analysis of 42 cases revealed that most patients were around 11 years old, with a higher number of males (54.8%) and parotid gland involvement being the most common (54.8%).
  • - The most common types of carcinoma identified were mucoepidermoid (57.1%) and squamous cell carcinoma (11.9%), with a low recurrence rate of 8.6% after treatment, emphasizing the need for early detection and monitoring.
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