1,266 results match your criteria: "The Sixth Affiliated Hospital of Sun Yat-sen University[Affiliation]"

Background: The role of circRNAs in hepatocellular carcinoma (HCC) progression remains unclear. CircPIAS1 (circBase ID: hsa_circ_0007088) was identified as overexpressed in HCC cases through bioinformatics analysis. This study aimed to investigate the oncogenic properties and mechanisms of circPIAS1 in HCC development.

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ELMO1 ameliorates intestinal epithelial cellular senescence via SIRT1/p65 signaling in inflammatory bowel disease-related fibrosis.

Gastroenterol Rep (Oxf)

May 2024

Department of General Surgery (Colorectal Surgery), The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, P. R. China.

Background: Intestinal fibrosis is a common complication in inflammatory bowel disease (IBD), which still lacks of reliable markers and therapeutic options. Cellular senescence has been considered an important mechanism of intestinal fibrosis, but the underlying molecular link remains elusive.

Methods: Tissues were stained using α-smooth muscle actin (α-SMA), fibronectin, and collagen I as markers of myofibroblastic differentiation.

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Glioblastoma (GBM) is a common primary central nervous system tumor. The molecular mechanisms of glioma are unknown, and the prognosis is poor. Therefore, exploring the underlying mechanisms and screening for new prognostic markers and therapeutic targets is crucial.

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Allergic airway inflammation (AAI), including allergic rhinitis (AR) and allergic asthma, is driven by epithelial barrier dysfunction and type 2 inflammation. However, the underlying mechanism remains uncertain and available treatments are constrained. Consequently, we aim to explore the role of cell-free DNA (cfDNA) in AAI and assess the potential alleviating effects of cationic polymers (CPs) through cfDNA elimination.

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Background: Extensive hepatocyte mortality and the absence of specific medical therapy significantly contribute to the unfavorable prognosis of acute liver failure (ALF). Ferroptosis is a crucial form of cell death involved in ALF. In this study, we aimed to determine the impact of Mediator complex subunit 1 (Med1) on ferroptosis and its potential hepatoprotective effects in ALF.

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Background: Primary tumor surgery (PTS) may enhance survival among part of patients with metastatic head and neck cancer (mHNC). Herein, a predictive model was needed to construct to identify who can gain benefit remarkably from tumor resection.

Methods: Data of patients with mHNC were extracted from the Surveillance, Epidemiology, and End Results (SEER) database.

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Background: Recent research showed that probiotics treatment may reduce insulin resistance, regulate lipid metabolism, raise liver enzyme levels, and ameliorate inflammation in individuals with metabolic associated fatty liver disease (MAFLD). However, the possible effects of probiotic use on the progression of hepatic steatosis (HS) have not been identified. The purpose of this study was to investigate this in a large population database.

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[Neoadjuvant strategy for locally advanced colorectal cancer based organ preservation].

Zhonghua Wei Chang Wai Ke Za Zhi

April 2024

Department of Oncology, the Sixth Affiliated Hospital of Sun Yat-sen University, Biomedical Innovation Center, the Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510655, China.

Neoadjuvant therapy for locally advanced colorectal cancer has made great progress in the past 20 years, but there are still limitations such as side effects, organ dysfunction and unsatisfactory control of metastasis. In recent years, with the improvement of surgical techniques and further development of molecular research, how to further improve local control, reduce distant metastasis, and even avoid surgery according to clinical remission to achieve organ preservation, is the current demand and research goal. With the advancement of molecular research, colorectal cancer has different treatment strategies based on microsatellite status.

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Article Synopsis
  • * Researchers analyzed data from 151 AIS patients treated with MT from 2019 to 2021, finding that 31.1% achieved FPE.
  • * Key factors linked to higher FPE rates included lower body mass index (BMI), absence of intracranial atherosclerotic stenosis, not having internal carotid artery occlusion, and lower total cholesterol levels, suggesting these factors may influence patient recovery after MT.
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Microbial and metabolomic profiles of type 1 diabetes with depression: A case-control study.

J Diabetes

April 2024

Department of Endocrinology and Metabolism, The Third Affiliated Hospital of Sun Yat-sen University, Guangdong Diabetes Prevention and Control Research Center, Guangdong Provincial Key Laboratory of Diabetology, Guangzhou, China.

Background: Depression is the most common psychological disorder in patients with type 1 diabetes (T1D). However, the characteristics of microbiota and metabolites in these patients remain unclear. This study aimed to investigate microbial and metabolomic profiles and identify novel biomarkers for T1D with depression.

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Background: Thermal ablation is routinely used for solitary colorectal liver metastases (SCLM), but the added value of adjuvant systemic therapy in SCLM remains unclear. This study aimed to compare the long-term outcomes for SCLM treated by ablation alone (AB) versus ablation plus systemic therapy (AS).

Methods: This multicenter retrospective study using nationwide data from fourteen institutions between October 2010 and May 2023, 369 patients with initial SCLM smaller than 5 cm, no extrahepatic metastases, and colorectal cancer R0 resection treated by thermal ablation were included.

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Exposure to environmental pollutants, including nanomaterials, has a significant impact on tumor progression. The increased demand for black phosphorus nanosheets (BPNSs), driven by their exceptional properties, raises concerns about potential environmental contamination. Assessing their toxicity on tumor growth is essential.

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Background: Natural killer/T cell lymphoma (NKTCL) is a clinically and genetically heterogeneous disease with poor prognosis. Genome sequencing and mutation characterization provides a powerful approach for patient stratification, treatment target discovery, and etiology identification. However, previous studies mostly concentrated on base-level mutations in primary NKTCL, whereas the large-scale genomic alterations in NKTCL and the mutational landscapes in relapsed/refractory NKTCL remain largely unexplored.

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Functional and esthetic reconstruction of composite lower lip defects with a motor-innervated chimeric facial artery buccinator myomucosal-submental island flap.

J Stomatol Oral Maxillofac Surg

June 2024

Department of Oral and Maxillofacial Surgery, Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China. Electronic address:

Article Synopsis
  • The study evaluated the effectiveness of a chimeric innervated buccinator myomucosal-submental island flap (BMM-SIF) in reconstructing large defects of the lower lip after tumor removal.
  • Five patients were studied, with assessments on lip function and appearance conducted through tests and patient interviews post-surgery.
  • Results showed successful flap survival and satisfactory outcomes, including good lip shape, function, and no significant limitations in mouth opening, although some drooling and air leakage were noted.
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Background: Mesenchymal stem cell-derived exosomes (MSC-Exo) have therapeutic potential. However, the impact of MSC-Exo on the survival and melanogenesis of human primary melanocytes following HO-induced damage has not been clarified. We therefore investigated the effects of MSC-Exo on the HO-affected survival of human primary melanocytes and their proliferation, apoptosis, senescence, and melanogenesis in vitro.

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Identification of differentially expressed autophagy-related genes in cases of intracranial aneurysm: Bioinformatics analysis.

J Stroke Cerebrovasc Dis

June 2024

Department of Neurosurgery, The Affiliated Hospital of Qingdao University, No. 16 Jiangsu Road, Shinan District, Qingdao, Shandong 266000, China. Electronic address:

Objective: Recent research indicates that autophagy is essential for the rupture of intracranial aneurysm (IA). This study aimed to examine and validate potential autophagy-related genes (ARGs) in cases of IA using bioinformatics analysis.

Methods: Two expression profiles (GSE54083 and GSE75436) were obtained from the Gene Expression Omnibus database.

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Most clinical doctors rely on high-risk factors recommended by guidelines to decide whether to undergo adjuvant chemotherapy for stage II colon cancer. However, these high-risk factors do not include postoperative carcinoembryonic antigen (CEA). This study aims to explore the elevation of postoperative CEA as a risk factor, in addition to other high-risk factors, to guide adjuvant chemotherapy for patients with stage II colon cancer.

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To evaluate pembrolizumab in patients of Chinese descent with microsatellite instability-high (MSI-H)/deficient mismatch repair (dMMR) tumors enrolled in KEYNOTE-158 (Cohort L). Patients with MSI-H/dMMR advanced tumors received pembrolizumab 200 mg IV Q3W. Primary end point was overall response rate (ORR).

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A maternal low-protein diet impaired glucose metabolism and altered the lncRNA profiles of islets in adult offspring.

J Nutr Biochem

June 2024

Key Laboratory of Diabetology of Guangdong Province, Department of Endocrinology and Metabolism, the Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China. Electronic address:

A maternal low-protein diet during pregnancy can increase children's susceptibility to diabetes mellitus in adulthood. However, whether long noncoding RNAs (lncRNAs) in islets participate in the development of diabetes in adult offspring following maternal protein restriction is not fully understood. Female mice were fed a low-protein (LP) diet or control diet throughout gestation and lactation.

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[Application of optical genome mapping technology for the detection of chromosomal structural variations].

Zhonghua Yi Xue Yi Chuan Xue Za Zhi

March 2024

Center of Reproductive Medicine, the Sixth Affiliated Hospital of Sun Yat-sen University, Guangdong Engineering Technology Research Center for Fertility Preservation, Guangzhou, Guangdong 510655, China.

Article Synopsis
  • The study evaluates the effectiveness of optical genome mapping (OGM) in identifying chromosomal structural abnormalities like ring chromosomes and translocations in patients undergoing genetic testing.
  • Four patients' clinical data were analyzed, and OGM was compared with techniques like chromosomal microarray analysis and fluorescence in situ hybridization.
  • OGM successfully detected certain chromosomal abnormalities and provided detailed breakpoint mapping, although it was not able to identify all abnormalities in some cases, suggesting it has both strengths and limitations in clinical diagnostics.
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Fatty Acid Oxidation Promotes Apoptotic Resistance and Proinflammatory Phenotype of CD4 Tissue-resident Memory T cells in Crohn's Disease.

Cell Mol Gastroenterol Hepatol

May 2024

Department of General Surgery (Colorectal Surgery), The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, P. R. China; Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, Guangdong Institute of Gastroenterology, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, P. R. China; Biomedical Innovation Center, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, P. R. China. Electronic address:

Background & Aims: As the most abundant memory T cells and major source of tumor necrosis factor α in the intestinal mucosa of Crohn's disease (CD) patients, CD4 tissue-resident memory T (T) cells play a critical role in CD pathogenesis. We investigated the role of metabolic reprogramming in the regulation of proinflammatory and apoptosis-resistant phenotype for CD4 T cells.

Methods: CD4 T cells were collected from intestinal resection tissues from control and CD patients.

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Laparoscopic Duodenum-Preserving Pancreatic Head Resection via Inferior Infracolic Approach: A Surgical Approach for Benign Lesions.

J Vis Exp

February 2024

Department of Hepatobiliary, Pancreatic and Splenic Surgery, The Sixth Affiliated Hospital of Sun Yat-sen University; Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, The Sixth Affiliated Hospital, Sun Yat-sen University;

Minimally invasive pancreatic resections are gaining popularity despite being technically demanding. However, in contrast to laparoscopic pancreatoduodenectomy (LPD), laparoscopic duodenum-preserving pancreatic head resection (LDPPHR) has not yet obtained wide acceptance. This could be attributed to the technical challenges involved in preserving the blood supply of the duodenum and bile duct.

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Gut bacteriome dysbiosis is known to be implicated in the pathogenesis of inflammatory bowel disease (IBD). Crohn's disease (CD) is an IBD subtype with extensive mucosal inflammation, yet the mucosal virome, an empirical modulator of the bacteriome and mucosal immunity, remains largely unclear regarding its composition and role. Here, we exploited trans-cohort CD patients and healthy individuals to compositionally and functionally investigate the small bowel (terminal ileum) virome and bacteriome.

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Genomic features reveal potential benefit of adding anti-PD-1 immunotherapy to treat non-upper aerodigestive tract natural killer/T-cell lymphoma.

Leukemia

April 2024

Department of Medical Oncology, Sichuan Clinical Research Center for Cancer, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, Affiliated Cancer Hospital of University of Electronic Science and Technology of China, Chengdu, 610041, China.

Article Synopsis
  • Natural killer/T-cell lymphoma (NKTCL) is a complex and aggressive disease, with a focus on a rare subtype called non-upper aerodigestive tract NKTCL (NUAT-NKTCL), which shows poor prognosis and lacks adequate treatment strategies.
  • In a study of 1589 NKTCL patients, 196 were identified with NUAT-NKTCL, revealing they had worse clinical outcomes and distinct genetic mutations compared to upper aerodigestive tract patients.
  • The addition of anti-PD-1 immunotherapy to standard chemotherapy significantly improved patients' survival rates, highlighting the need for more research on treatment effectiveness and biomarkers for NUAT-NKTCL.
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Background: Tumour-stroma interactions, as indicated by tumour-stroma ratio (TSR), offer valuable prognostic stratification information. Current histological assessment of TSR is limited by tissue accessibility and spatial heterogeneity. The authors aimed to develop a multitask deep learning (MDL) model to noninvasively predict TSR and prognosis in colorectal cancer (CRC).

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