1,429 results match your criteria: "The Fifth Affiliated Hospital of Sun Yat- Sen University[Affiliation]"

Culture media from hypoxia conditioned mast cells aggravates hypoxia and reoxygenation injury of human intestinal cells.

Tissue Cell

February 2023

Department of Anesthesiology, The Third Affiliated Hospital of Sun Yat-sen University, No.600 Tianhe Road, Guangzhou 510630, China; Department of Anesthesiology, The Fifth Affiliated Hospital of Sun Yat-sen University, No.52 Meihua East Road, Zhuhai 519000, China. Electronic address:

Intestinal ischemia-reperfusion (II/R) injury is a common clinical and pathological change; however, its underlying mechanisms remain unclear. Previous studies have shown that the inflammatory response induced by mast cell degranulation may be involved in the mechanism underlying II/R injury in rats. In this study, we established a human intestinal epithelial adenocarcinoma cell (Caco-2) hypoxia/reoxygenation (H/R) model and transwell system to investigate the effects of culture media (CM) from hypoxia conditioned human mast cell (HMC-1) and HMC-1 H/R on hypoxia/reoxygenation injury in Caco-2 under H/R conditions.

View Article and Find Full Text PDF

Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2), a new coronavirus causing Coronavirus Disease 2019 (COVID-19), is a major topic of global human health concern. The Delta and Omicron variants have caused alarming responses worldwide due to their high transmission rates and a number of mutations. During a one-year follow-up (from June 2020 to June 2021), we included 114 patients with SARS-CoV-2 infection to study the long-term dynamics and the correlative factors of neutralizing antibodies (NAbs) in convalescent patients.

View Article and Find Full Text PDF

Background: Metabolic associated fatty liver disease (MAFLD) formerly known as non-alcoholic fatty liver disease (NAFLD) is the most common chronic liver disease. Flavonoid is considered a promising candidate for metabolic disease prevention although few studies have explored the relationship between flavonoid intake and MAFLD.

Purpose: To assess the relationship between flavonoid intake and MAFLD prevalence in the U.

View Article and Find Full Text PDF

Background: The purpose of this study was to identify the ferroptosis-related molecular subtypes in muscle invasive bladder cancer (MIBC) associated with the tumor microenvironment (TME) and immunotherapy.

Methods: Expression profiles and corresponding clinical information were obtained from The Cancer Genome Atlas (TCGA) dataset and the Gene Expression Omnibus (GEO) dataset. Nonnegative matrix factorization (NMF) analysis was performed to identify two molecular subtypes based on 41 ferroptosis-related prognostic genes.

View Article and Find Full Text PDF

Oro-maxillo-facial metastasis from hepatocellular carcinoma (HCC) is very rare, and reports on treating maxillary metastasis from HCC are unavailable. Anti-angiogenesis therapy combined with immunotherapy represented by programmed cell death 1 (PD-1) or its ligand (PD-L1) inhibitor has become the standard treatment of advanced HCC. However, integrating chemoradiotherapy into immunotherapy-bevacizumab combination therapy has not been reported.

View Article and Find Full Text PDF

Factors associated with the high susceptibility to depression of women during the perimenopause.

Brain Behav

January 2023

Guangdong Geriatrics Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong Province, 510080, P. R. China.

Objective: This study investigated the factors associated with the high susceptibility of perimenopausal women to depression.

Methods: A total of 66 perimenopausal women participated in this study. The Zung self-rating depression scale (SDS) was used to evaluate the intensity of depressive symptoms.

View Article and Find Full Text PDF

Mutations are Associated with Variable Levels of Rifampin and Rifabutin Resistance in .

Infect Drug Resist

November 2022

State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, People's Republic of China.

Article Synopsis
  • The study aimed to investigate how specific genetic mutations relate to resistance against the antibiotics rifampin (RIF) and rifabutin (RFB) in bacteria.
  • Researchers analyzed 177 clinical isolates, identifying multiple mutations and their impact on the minimum inhibitory concentrations (MICs) for RIF and RFB.
  • The findings revealed distinct mutation patterns linked to high-level resistance, underscoring the complexity of rifamycin resistance and its implications for tuberculosis treatment options.*
View Article and Find Full Text PDF

Background: Obsessive-compulsive disorder (OCD) is a chronic neural psychological condition. Its pathogenesis is not yet completely understood. This current research used fluorine-18 fluorodeoxyglucose (18F-FDG) positron emission tomography (PET) imaging to examine the changes in brain glucose metabolism in patients with OCD during the course of treatment, and analyzed its relationship with clinical efficacy.

View Article and Find Full Text PDF

Ossicle of the meniscus is an uncommon discovery often misdiagnosed as a loose body, which may lead to intermittent knee discomfort. We present a rare case of meniscal ossicle accompanied by the medial meniscus posterior root tear. A 46-year-old female experienced intermittent left knee pain and after coming to the hospital was diagnosed with a meniscal ossicle.

View Article and Find Full Text PDF

The sustentaculum tali are tightly bound to the talus by the interosseous and deltoid ligament complex and have been considered a ''constant fragment". Yet there is a dearth of study on the anatomical patterns of the sustentacular segment. Consequently, this study is designated with the purpose of defining the prevalence and displacement of sustentacular fractures in intra-articular calcaneal fractures (ICFs) applying computed tomography (CT) mapping in both two-dimensional (2D) and three-dimensional (3D) conditions.

View Article and Find Full Text PDF

Functionalized biomimetic nanoparticles combining programmed death-1/programmed death-ligand 1 blockade with photothermal ablation for enhanced colorectal cancer immunotherapy.

Acta Biomater

February 2023

Center for Infection and Immunity, Guangdong Provincial Key Laboratory of Biomedical Imaging, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, Guangdong 519000, China; Southern Marine Science and Engineering Guangdong Laboratory, Zhuhai, Guangdong 519000, China. Electronic address:

Immune checkpoint blockade therapy targeting programmed death-1 (PD-1) or its major ligand programmed death-ligand 1 (PD-L1) has achieved remarkable success in the treatment of several tumors, including colorectal cancer. However, the efficacy of PD-1/PD-L1 inhibitors is limited in some colorectal cancers within the immunosuppressive tumor microenvironment (such as when there is a lack of immune cell infiltration). Herein, anti-PD-L1 functionalized biomimetic polydopamine-modified gold nanostar nanoparticles (PDA/GNS@aPD-L1 NPs) were developed for synergistic anti-tumor treatment by combining PD-1/PD-L1 blockade with photothermal ablation.

View Article and Find Full Text PDF

Background: Previous studies have confirmed that miR-146a-5p overexpression suppresses neurogenesis, thereby enhancing depression-like behaviors. However, it remains unclear how miR-146a-5p dysregulation produces brain structural abnormalities in patients with major depressive disorder (MDD).

Methods: In this case-control study, we combined cortical morphology analysis of magnetic resonance imaging (MRI) and miR-146a-5p quantification to investigate the neuropathological effect of miR-146a-5p on cortical thickness in MDD patients.

View Article and Find Full Text PDF

Background: Obstetrical infection is one of the causes of maternal death and a difficult problem for many clinicians. Changes in the demographic and obstetric background of pregnant women following the Universal Two-Child Policy may have an impact on some fertility phenomena. And with the increase in the number of deliveries, the limited medical resources become more scarce.

View Article and Find Full Text PDF

DNA damage repair (DDR) is essential for maintaining genome integrity and modulating cancer risk, progression, and therapeutic response. DDR defects are common among non-small lung cancer (NSCLC), resulting in new challenge and promise for NSCLC treatment. Thus, a thorough understanding of the molecular characteristics of DDR in NSCLC is helpful for NSCLC treatment and management.

View Article and Find Full Text PDF

Objective: The authors undertook an evaluation of periprocedural cerebrovascular complications and 30-day outcomes of endovascular treatment for intracranial vertebral artery dissecting aneurysms (IVADAs) and assessed the relevant risk factors.

Methods: The authors included a series of 195 patients who had undergone endovascular treatment for 198 IVADAs. Clinical data, morphological characteristics, treatment details, and periprocedural cerebrovascular complications including intraprocedural rupture, intraprocedural thrombosis, intracranial hemorrhage (ICH), transient ischemic attack (TIA), and ischemic stroke (IS) were recorded.

View Article and Find Full Text PDF

Background: Accumulating data have shown that high expression of CD73 is associated with poor prognosis in various cancers, however the role and significance of CD73 in clear-cell renal cell carcinoma (ccRCC) still remain unclear. The present study aims to evaluate the prognostic significance of CD73 in ccRCC and explore the potential function and .

Methods: Firstly, the expression of CD73 in ccRCC was detected using clinical tissues and verified using TCGA and GEO data.

View Article and Find Full Text PDF

Background: To assess the feasibility of adjusting radiation dose (RD) in childhood NPC with favorable tumor response after neoadjuvant chemotherapy (NAC).

Patients And Methods: Using an NPC-specific database, children and adolescents (≤18 years) with locoregionally advanced NPC (CA-LANPC) were retrospectively analyzed. Enrolled patients were those who received favorable tumor response after 2-4 cycles of NAC followed by concurrent chemoradiotherapy.

View Article and Find Full Text PDF

Esophageal squamous cell carcinoma (ESCC) is one of the most lethal malignancies globally. Peptide-based tumor-targeted imaging is critical for ESCC imaging. In this study, we aim to identify a peptide-targeting IGF2BP2 that specifically binds to human ESCC for near-infrared imaging of esophageal cancer.

View Article and Find Full Text PDF

Uncovering Novel Prognostic Factors of Sudden Sensorineural Hearing Loss by Whole-Genome Sequencing of Cell-Free DNA.

J Int Adv Otol

November 2022

Department of Otolaryngology-Head and Neck Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China.

Background: Sudden sensorineural hearing loss is a common disease with several etiologic hypotheses, such as infection, vascular occlusion, inflammation, oxidative stress, etc. Studies have reported that the concentration of cell-free DNA in plasma will elevate in these situations. Former studies have reported that the whole-genome sequencing of cell-free DNA has high accuracy and sensitivity in inferring gene expressions.

View Article and Find Full Text PDF

Background: It is documented that microglia-secreted extracellular vesicles (microglia-EVs) exert neuroprotection which is important following subarachnoid hemorrhage (SAH). Herein, we focused on the mechanism of microglia-EVs harboring microRNA-140-5p (miR-140-5p) in SAH development.

Methods: After the successful establishment of SAH rats, neurological function was evaluated, and behaviors were observed.

View Article and Find Full Text PDF

Purpose: The purpose of this study was to observe the morphologic characteristics of patent foramen ovale (PFO) by transesophageal echocardiography (TEE), and to analyze its correlation with right-to-left shunt (RLS) of contrast-transthoracic echocardiography (c-TTE) and contrast-transcranial Doppler ultrasonography (c-TCD).

Methods: 124 patients with PFO were divided into four groups according to the morphological characteristics of PFO. RLS grade of each group PFO with c-TTE and c-TCD in resting and Valsalva manoeuvre was measured.

View Article and Find Full Text PDF

Purpose: In this study, we aimed to investigate the effect of follistatin (FST) on hepatic steatosis in NAFLD and the underlying mechanism, which has rarely been reported before.

Methods: Liver samples from NAFLD patients and normal liver samples (from liver donors) were collected to investigate hepatic FST expression in humans. Additionally, human liver cells (LO2) were treated with free fatty acid (FFA) to induce lipid accumulation.

View Article and Find Full Text PDF