26 results match your criteria: "The Sixth Affiliated Hospital of Sun Yat-sen University Guangzhou[Affiliation]"

An imbalance in the serum sodium to chloride ratio (Na/Cl) was linked to higher mortality among heart failure patients. Nonetheless, the prognostic significance of Na/Cl in individuals undergoing peritoneal dialysis (PD) remains unexplored. This study seeks to explore the association between initial Na/Cl levels and mortality in PD patients.

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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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Interactions between graphene, with its wide deployment in consumer products, and skin, the body's largest organ and first barrier, are highly relevant with respect to toxicology and dermal delivery. In this work, interaction of polyglycerol-functionalized graphene sheets, with 200 nm average lateral size and different surface charges, and human skin was studied and their potential as topical delivery systems were investigated. While neutral graphene sheets showed no significant skin interaction, their positively and negatively charged counterparts interacted with the skin, remaining in the stratum corneum.

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A retrospective analysis based on multiple machine learning models to predict lymph node metastasis in early gastric cancer.

Front Oncol

December 2022

Department of Gastrointestinal Surgery, Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, Guangdong Institute of Gastroenterology, The Sixth Affiliated Hospital of Sun Yat-sen University Guangzhou, Guangdong, China.

Background: Endoscopic submucosal dissection has become the primary option of treatment for early gastric cancer. However, lymph node metastasis may lead to poor prognosis. We analyzed factors related to lymph node metastasis in EGC patients, and we developed a construction prediction model with machine learning using data from a retrospective series.

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The dysbiosis of the gut microbiome is one of the pathogenic factors of nonalcoholic fatty liver disease (NAFLD) and also affects the treatment and intervention of NAFLD. Among gut microbiomes, keystone species that regulate the integrity and stability of an ecological community have become the potential intervention targets for NAFLD. Here, we collected stool samples from 22 patients with nonalcoholic steatohepatitis (NASH), 25 obese patients, and 16 healthy individuals from New York for 16S rRNA gene sequencing.

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Type 2 diabetes mellitus (T2DM) has been confirmed to be closely associated with breast cancer (BC). However, the shared mechanisms between these diseases remain unclear. By comparing different datasets, we identified shared differentially expressed (DE) RNAs in T2DM and BC, including 427 mRNAs and 6 miRNAs from the GEO(Gene Expression Omnibus) database.

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One of the main clinical treatments for advanced nasopharyngeal carcinoma is chemotherapy, but systemic administration can cause serious adverse reactions. New type of nanomaterial which can actively targeting, imaging, and treating nasopharyngeal carcinoma at the same time to enhance the effect of chemotherapy, meanwhile monitoring the intracellular drug release process at the level of single cancer cell was urgently needed. GE11, an EGFR antagonist peptide, was used to target nasopharyngeal carcinoma which has positive expression of EGFR on its nucleus.

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Objective: This study aims to evaluate the association between autoimmune thyroiditis and Sudden Sensorineural Hearing Loss (SSNHL).

Methods: Hundred and five patients with SSNHL were enrolled. Audiometric tests, serum thyroid autoantibodies (TPOAb, TgAb) were studied.

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NONO phase separation enhances DNA damage repair by accelerating nuclear EGFR-induced DNA-PK activation.

Am J Cancer Res

June 2021

Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, The Sixth Affiliated Hospital, Sun Yat-sen University Guangzhou 510655, Guangdong, P. R. China.

Radioresistance is one of the main causes of cancer treatment failure, which leads to relapse and inferior survival outcome of cancer patients. Liquid-liquid phase separation (LLPS) of proteins is known to be involved in various biological processes, whereas its role in the regulation of radiosensitivity remains largely unknown. In this study, we characterized NONO, an RNA/DNA binding protein with LLPS capacity, as an essential regulator of tumor radioresistance.

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Glycosylation of Siglec15 promotes immunoescape and tumor growth.

Am J Cancer Res

May 2021

Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, Guangdong Institute of Gastroenterology, The Sixth Affiliated Hospital of Sun Yat-sen University Guangzhou 510655, Guangdong, China.

Siglec15 is a recently characterized immunosuppressive transmembrane protein, which expresses in various types of solid tumors and promotes cancer development. Several studies reported that Siglec15 is a prognostic biomarker of cancer patients, and targeting Siglec15 may be a promising strategy for cancer therapy. However, the regulation of Siglec15 function remains unclear.

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Different types of wounds have different requirements of a wound sealant. One of the requirements of concern is the adaptability of the mechanical properties of biomaterials to native tissues. However, the mechanical properties of current sealant are untunable or adjustable in a small range normally.

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Introduction: There is no consensus for the horseshoe kidneys with recurrent symptomatic hydronephrosis, so we presented our initial experience with a laparoscopic transmesenteric approach.

Case Presentation: Five patients with symptomatic ureteropelvic junction obstruction were identified by computed tomography urography. The laparoscopic transmesenteric approach was performed in such a way that the mesentery of the small intestine was incised along with the blood vessels longitudinally, and the isthmus was isolated to avoid injury to the mesenteric blood supply; then we cut the isthmus using an endostapler.

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Photothermal therapy technology of metastatic colorectal cancer.

Am J Transl Res

July 2020

Department of Colorectal Surgery, Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, The Sixth Affiliated Hospital of Sun Yat-Sen University Guangzhou 510655, Guangdong, China.

Article Synopsis
  • * Photothermal therapy (PTT) is an emerging method with potential for treating mCRC, and the review discusses various traditional and innovative approaches like surgery, chemotherapy, and PTT.
  • * The review also covers the use of different nanomaterials in PTT for CRC, examines combined applications with other methods, and suggests future research directions for improving treatment outcomes.
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Targeting and imaging colorectal cancer by activatable cell-penetrating peptides.

Am J Transl Res

May 2020

Department of Colorectal Surgery, Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, The Sixth Affiliated Hospital of Sun Yat-sen University Guangzhou 510655, Guangdong, China.

While it has been a great challenge to determine the positive status of metastasis lesions, intraoperative tumor imaging, which can show tumor localization and facilitate intraoperative staging of nodal metastases, have enabled surgeons to quickly and accurately perform radical resections. However, to date, there is no accurate method for evaluating nodal status intraoperatively. In this study, we synthesized activatable cell-penetrating peptides (ACPPs) that can specifically recognize colorectal cancer and their nodal status.

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Epigenetic modifications via DNA methylation and long non-coding RNAs (lncRNAs) have been identified in bladder cancer (BC). However, DNA methylation of lncRNAs involved in BC has not been elucidated. Here, DNA immunoprecipitation-sequencing (MeDIP-seq) and RNA-sequencing (RNA-seq) were carried out using eight paired tumor and adjacent normal tissue samples from patients with BC.

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Background And Aims: We compared the initial medical and surgical management of Crohn's disease (CD) and ulcerative colitis (UC) between the United States and China, with aims to better characterize the global variation in the treatment patterns of inflammatory bowel disease (IBD).

Methods: Participants from the United States and China completed a questionnaire on demographic and clinical characteristics, medications (biologics, immunomodulators, aminosalicylates, steroids), and IBD-related surgical history. Patients diagnosed in 2006 and later were eligible.

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So far, at least 12 cases of immunoglobulin G4 related disease (IgG4-RD) coexisting with colorectal cancer have been reported in the literature, but IgG4-RD with rectal cancer is still extremely rare. In addition, recently, the correlation between IgG4-RD and malignancy strongly motivates immunologists and pathologists to conduct further research. In this case study, we present a case of IgG4-RD with rectal cancer and review the pathological characteristics of IgG4-RD and discuss the association between IgG4-RD and malignancy.

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Objective: Multiple resistances to isoniazid and rifampicin lead to the majority of death associated with infection. This study aimed to characterize the single nucleotide polymorphisms (SNPs) and insertion and deletion (InDel) mutations associated with isoniazid and rifampicin resistance.

Methods: The strain H37Rv was cultured and treated with isoniazid or rifampicin for generations.

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Article Synopsis
  • * Findings revealed 335 differentially methylated genes and 132 differentially expressed genes, highlighting a negative correlation between methylation and transcriptional levels in resistant strains.
  • * KEGG pathway analysis identified the nitrogen metabolism pathway as significant in relation to methylation changes, while specific candidate genes linked to protein interactions were identified, offering insights for future research on antibiotic resistance.
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Dysregulation of microRNA (miRNA) is actively involved in the development and progression of gastric cancer (GC). MiR-520c was previously found to be overexpressed in GC specimens and cells. However, the clinical significance of miR-520c and its biological function in GC remain largely unknown.

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Menstrual Cycle Phase Modulates Auditory-Motor Integration for Vocal Pitch Regulation.

Front Neurosci

December 2016

Department of Rehabilitation Medicine, The First Affiliated Hospital of Sun Yat-sen UniversityGuangzhou, China; Guangdong Provincial Key Laboratory of Brain Function and Disease, Zhongshan School of Medicine, Sun Yat-sen UniversityGuangzhou, China.

In adult females, previous work has demonstrated that changes in auditory function and vocal motor behaviors may accompany changes in gonadal steroids. Less is known, however, about the influence of gonadal steroids on auditory-motor integration for voice control in humans. The present event-related potential (ERP) study sought to examine the interaction between gonadal steroids and auditory feedback-based vocal pitch regulation across the menstrual cycle.

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CD24 negative lung cancer cells, possessing partial cancer stem cell properties, cannot be considered as cancer stem cells.

Am J Cancer Res

April 2016

State Key Laboratory of Cell Biology, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences Shanghai 200031, China.

Cancer stem cells (CSCs) play vital role in lung cancer progression, resistance, metastasis and relapse. Identifying lung CSCs makers for lung CSCs targeting researches are critical for lung cancer therapy. In this study, utilizing previous identified lung CSCs as model, we compared the expression of CD24, CD133 and CD44 between CSCs and non-stem cancer cells.

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Objective: Our study investigated the role of microRNA (miR)-200a and its molecular targets in hepatocellular carcinoma (HCC) cells.

Methods: An inhibitor of miR-200a was transiently transfected into the hepatocellular carcinoma cell line, MHCC-97L. The effect of this transfection on mRNA levels of epithelial-mesenchymal transition (EMT)-related genes was measured by fluorescence-based quantitative real-time polymerase chain reaction (qRT-PCR).

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Surgical interventions for gastric cancer: a review of systematic reviews.

Int J Clin Exp Med

November 2015

School of Basic Medical Sciences, Guangzhou University of Chinese Medicine, Guangzhou Higher Education Mega Center Guangzhou 510006, Guangdong Province, P. R. China.

Aim: To evaluate methodological quality and the extent of concordance among meta-analysis and/or systematic reviews on surgical interventions for gastric cancer (GC).

Methods: A comprehensive search of PubMed, Medline, EMBASE, the Cochrane library and the DARE database was conducted to identify the reviews comparing different surgical interventions for GC prior to April 2014. After applying included criteria, available data were summarized and appraised by the Oxman and Guyatt scale.

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Cervical cancer is the second most common cancer among women worldwide and is the leading cause of deaths in developing countries. Persistent infections with a subset of HPVs, called "high-risk HPVs", including HPV16 and HPV18, are the primary cause of cervical cancer. The apolipoprotein B mRNA editing enzyme, catalytic polypeptide-like (APOBEC) family of proteins is a group of cellular enzymes that catalyze the deamination of cytidine (C) to uracil (U) in single-stranded DNA/RNA, and functions as antiviral factors in the innate immune system of the host.

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