52 results match your criteria: "The seventh Affiliated Hospital of Southern Medical University[Affiliation]"

Aging-induced Alternation in the Gut Microbiota Impairs Host Antibacterial Defense.

Adv Sci (Weinh)

January 2025

Department of Critical Care Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, 510280, China.

Older individuals experience increased susceptibility and mortality to bacterial infections, but the underlying etiology remains unclear. Herein, it is shown that aging-associated reduction of commensal Parabacteroides goldsteinii (P. goldsteinii) in both aged mice and humans critically contributes to worse outcomes of bacterial infection.

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Baolier Capsule's Secret Weapon: Piperine Boosts Cholesterol Excretion to Combat Atherosclerosis.

Drug Des Devel Ther

January 2025

Department of Cardiology, The Seventh Affiliated Hospital of Southern Medical University, Southern Medical University, Foshan, 528244, People's Republic of China.

Purpose: The Baolier capsule (BLEC) is a proprietary Mongolian medicine administered for treating hypercholesterolemia and atherosclerosis (AS). However, the therapeutic effects, primary bioactive ingredients, and potential mechanisms underlying hypercholesterolemia and AS remain unclear. This study aimed to investigate the pharmacological effects, principal active ingredients, and mechanisms of BLEC against hypercholesterolemia and AS.

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OCTN2 expression and function in the Sertoli cells of testes from patients with non-obstructive azoospermia.

J Mol Histol

December 2024

Department of Urology, Nanfang Hospital, Southern Medical University, No. 1023-1063 Shatai South Road, Baiyun District, Guangzhou, 510515, Guangdong, China.

Background: Among couples, male factors account for approximately 50% of infertility cases, with nonobstructive azoospermia (NOA) representing one of the most clinically common and severe categories of male infertility, affecting approximately 10-15% of patients. Currently, L-carnitine is clinically used to improve spermatogenesis by regulating Sertoli cell function. Multiple clinical trials have described the efficacy of L-carnitine in treating NOA.

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Zinc promotes microbial p-coumaric acid production that protects against cholestatic liver injury.

Cell Host Microbe

December 2024

Department of Pathophysiology, Guangdong Provincial Key Laboratory of Proteomics, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China. Electronic address:

Article Synopsis
  • Cholestatic liver disease (CLD) is a prevalent liver disorder with few treatment options, but zinc (Zn) supplementation may improve the situation by altering the gut microbiome.
  • In this study, Zn was found to increase levels of the bacteria Blautia producta and the compound p-coumaric acid, which were associated with reduced liver injury in both mice and humans.
  • The protective effects of Zn against liver damage were linked to p-coumaric acid's ability to inhibit oxidative stress in liver cells, illustrating a beneficial interaction between the host's gut microbiome and Zn supplementation in managing CLD.
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Contribution of IL-17C-mediated macrophage polarization to Type 17 inflammation in neutrophilic asthma.

Cell Commun Signal

November 2024

The State Key Laboratory of Respiratory Disease, Guangdong Provincial Key Laboratory of Allergy & Clinical Immunology, The Second Affiliated Hospital, Sino-French Hoffmann Institute, Guangzhou Medical University, Guangzhou, 510260, China.

Article Synopsis
  • IL-17C plays a significant role in neutrophilic asthma, showing increased levels in both asthmatic patients and OVA/CFA-induced asthma models.
  • Experiments using both Il-17c-deficient mice and those treated with IL-17C revealed that IL-17C exacerbates inflammation by promoting M1 macrophage differentiation while inhibiting M2 macrophages.
  • Targeting the IL-17C/IL-17RE signaling pathway may provide new therapeutic opportunities for treating neutrophilic asthma.
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Stimuli-Responsive Peptide/siRNA Nanoparticles as a Radiation Sensitizer for Glioblastoma Treatment by Co-Inhibiting RELA/P65 and EGFR.

Int J Nanomedicine

November 2024

Department of Radiation Oncology, Guangzhou Institute of Cancer Research, The Affiliated Cancer Hospital, Guangzhou Medical University, Guangzhou, Guangdong, 510095, People's Republic of China.

Purpose: To develop a novel approach for increasing radiosensitivity in glioblastoma (GBM) by using targeted nanoparticles to deliver siRNA aimed at silencing the EGFR and RELA/P65 genes, which are implicated in radioresistance.

Patients And Methods: We engineered biodegradable, tumor-targeted, self-assembled, and stimuli-responsive peptide nanoparticles for efficient siRNA delivery. We evaluated the nanoparticles' ability to induce gene silencing and enhance DNA damage under radiation in vitro and in vivo.

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Background: Since children have strong desire for exploration and poor safety awareness, foreign body impaction in the digestive tract is one of the most common critical conditions in children. Due to the popularity of electronic products, button battery ingestion by mistake is also increasing in children. Button battery impaction in the esophagus can cause serious complications such as esophageal cauterization and perforation in a short time.

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Alterations in maternal-fetal gut and amniotic fluid microbiota associated with fetal growth restriction.

BMC Pregnancy Childbirth

November 2024

Department of Fetal Medicine and Prenatal Diagnosis, Zhujiang Hospital, Southern Medical University, Guangzhou, China.

Background: Fetal growth restriction (FGR) is typically characterised as the fetus' inability to reach its inherent growth potential. A growing body of evidence points to the important role of the maternal gut microbiota in FGR development. However, comprehensive research on changes in maternal-fetal gut and intrauterine microbiota related to FGR is lacking.

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Article Synopsis
  • Diabetic cardiomyopathy (DCM) is a serious complication of diabetes mellitus that significantly increases the risk of death in diabetic patients, and sleep deficiency exacerbates cardiovascular issues linked to diabetes.
  • A study using KK/Upj-Ay mice with type 2 diabetes showed that sleep restriction (SR) led to increased mortality, heart damage, and inflammation, worsening the overall condition of the heart.
  • The research found that SR promotes cardiomyocyte death and further aggravates the disease through specific pathways, highlighting the importance of good sleep habits for diabetic patients to prevent heart failure.
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Background: Although serum bicarbonate is a reliable predictor of various disease complications, its relationship with postoperative delirium (POD) remains unclear. Our research aimed to assess the effect of baseline serum bicarbonate levels on the incidence of POD in cardiac surgery patients.

Methods: A retrospective analysis was conducted on cardiac surgery patients who met specific inclusion and exclusion criteria, using data from the Marketplace for Information in Critical Care Medicine (MIMIC-IV) database.

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Objective: To systematically analyze the current situation with dyslipidemia among teachers in China, to provide guidance for lipid management and prevention of ASCVD.

Design: A systematic review and meta-analysis of the prevalence of dyslipidemia among teachers in China.

Methods: We searched via 9 databases for studies published between June 1, 1996, and July, 25, 2024.

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Article Synopsis
  • Acetaminophen (APAP) overdose can lead to acute liver injury (ALI), and current treatments for this condition are limited; however, astilbin, a compound from Smilax glabra with antioxidant properties, shows promise in protecting against ALI.
  • In a study with mice, astilbin was administered prior to APAP exposure, and the results indicated that it helped reduce ALI by altering gut microbiota and increasing beneficial metabolites like hydroxytyrosol.
  • Further analysis revealed that hydroxytyrosol also provided protective effects by reducing oxidative stress and inflammation in the liver, demonstrating that astilbin promotes liver health through its interaction with gut microbes and metabolites.
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[Construction and validation of clinical prediction model of tongue base collapse under drug-induced sleep endoscopy in OSA patients].

Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi

August 2024

Department of Otolaryngology-Head and Neck Surgery, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China.

To analyze the correlation between drug-induced sleep endoscopy (DISE), results, polysomnography (PSG) indicators, and clinical parameters in patients with obstructive sleep apnea (OSA), and to establish and validate a predictive model for tongue base plane obstruction. This retrospective study analyzed 117 OSA patients diagnosed via PSG and treated at the Department of Otolaryngology-Head and Neck Surgery, Nanfang Hospital, Southern Medical University, between October 2014 and March 2022. The cohort comprised of 114 males and 3 females, with an age range of 20 to 54 years (mean age 38.

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Altered sleep onset transition in depression: Evidence from EEG activity and EEG functional connectivity analyses.

Clin Neurophysiol

October 2024

School of Biomedical Engineering, Sun Yat-sen University-Shenzhen Campus, Shenzhen 518000, China; Key Laboratory of Sensing Technology and Biomedical Instruments of Guangdong Province, Sun Yat-sen University-Shenzhen Campus, Shenzhen 518000, China. Electronic address:

Article Synopsis
  • Sleep disorders are linked to depression, potentially caused by unusual brain activity during the transition into sleep.
  • A study compared EEG data from 32 depressed patients and 33 healthy controls, finding that depressed individuals had slower changes in brain activity and different functional connectivity patterns during sleep onset.
  • The results suggest that the abnormal sleep transition in depressed patients affects both their neural activity and connectivity, offering insights into how sleep disorders manifest in depression.
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Purpose: Postoperative surgical site infection is one of the most serious complications following spine surgery. Previous studies have reported Modic changes (MC) represent a subclinical infection. This study aims to investigate the relation between Modic changes and surgical site infection after posterior lumbar fusion surgery.

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Background: Polypharmacy would increase the risk of adverse drug events and the burden of renal drug excretion among older people. Nevertheless, the association between the number of medication and the risk of chronic kidney disease (CKD) remains controversial. Therefore, this study aims to investigate the association between the number of medication and the incidence of CKD in older people.

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Sleep restriction promotes brain oxidative stress and inflammation, and aggravates cognitive impairment in insulin-resistant mice.

Psychoneuroendocrinology

August 2024

Centre of General Practice, The Seventh Affiliated Hospital of Southern Medical University, Foshan 528200, China; School of Traditional Chinese medicine, Southern Medical University, Guangzhou 510515, China; Guangdong Provincial Key Laboratory of Chinese Medicine Pharmaceutics, Guangzhou 510515, China. Electronic address:

Sleep deprivation and insulin resistance (IR) are two risk factors for Alzheimer's disease. As the population of people with IR increases and sleep restriction (SR) due to staying up late becomes the "new normal", it is necessary to investigate the effects and molecular pathogenesis of chronic SR on cognitive function in insulin resistance. In this study, 4-week-old mice were fed a high-fat diet (HFD) for 8 weeks to establish IR model, and then the mice were subjected to SR for 21 days, and related indicators were assessed, including cognitive capacity, apoptosis, oxidative stress, glial cell activation, inflammation, blood-brain barrier (BBB) permeability and adiponectin levels, for exploring the potential regulatory mechanisms.

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The LEPIS-HuR-TMOD4 axis regulates hepatic cholesterol homeostasis and accelerates atherosclerosis.

Atherosclerosis

June 2024

Department of Cardiology, The Seventh Affiliated Hospital of Southern Medical University, Southern Medical University, Foshan, China. Electronic address:

Background And Aims: Long noncoding RNAs (lncRNAs) play important roles in the progression of atherosclerosis. In this study, we identified an uncharacterized lncRNA, Liver Expressions by PSRC1 Induced Specifically (LEPIS). This study aimed to clarify the mechanism though which LEPIS affects atherosclerosis (AS).

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pH-responsive CuS/DSF/EL/PVP nanoplatform alleviates inflammatory bowel disease in mice via regulating gut immunity and microbiota.

Acta Biomater

April 2024

National Clinical Research Center for Digestive Diseases, Department of Gastroenterology, Changhai Hospital, Naval Medical University, No. 168 Changhai Road, Shanghai 200433, PR China. Electronic address:

The clinical treatment of inflammatory bowel disease (IBD) is challenging. We developed copper sulfate (CuS)/disulfiram (DSF)/methacrylic acid-ethyl acrylate copolymer (EL)/polyvinylpyrrolidone (PVP) nanoplatform (CuS/DSF/EL/PVP) and evaluated its efficiency for treating IBD. After oral administration, the pH-sensitive EL protected the CuS/DSF/EL/PVP against degradation by acidic gastric juices.

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Inulin alleviates perinatal 2-ethylhexyl diphenyl phosphate (EHDPHP) exposure-induced intestinal toxicity by reshaping the gut microbiota and suppressing the enteric-origin LPS/TLR4/NF-κb pathway in dams and pups.

Environ Pollut

April 2024

Guangzhou Key Laboratory of Forensic Multi-Omics for Precision Identification, School of Forensic Medicine, Southern Medical University, Guangzhou, Guangdong, 510515, China. Electronic address:

Organophosphorus flame retardants (OPFRs), such as 2-ethylhexyl diphenyl phosphate (EHDPHP), are ubiquitously used, leading to pervasive environmental contamination and human health risks. While associations between EHDPHP and health issues such as disruption of hormones, neurotoxic effects, and toxicity to reproduction have been recognized, exposure to EHDPHP during perinatal life and its implications for the intestinal health of dams and their pups have largely been unexplored. This study investigated the intestinal toxicity of EHDPHP and the potential for which inulin was effective.

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Objective: Propofol-opioids are the most common drug combination and can reduce the dose of propofol and the incidence of adverse events in painless artificial abortion. We hypothesized that butorphanol may reduce the median effective dose (ED) of propofol, propofol injection pain, and postoperative uterine contraction pain.

Methods: This was a randomized, double-blind, controlled study.

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Oral magnesium prevents acetaminophen-induced acute liver injury by modulating microbial metabolism.

Cell Host Microbe

January 2024

Department of Pathophysiology, Guangdong Provincial Key Laboratory of Proteomics, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China; Department of Critical Care Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, China. Electronic address:

Article Synopsis
  • Acetaminophen overuse can lead to acute liver failure (ALF) by producing harmful toxins through the enzyme CYP2E1, causing oxidative damage to the liver.
  • Oral magnesium (Mg) supplementation may protect against acetaminophen-induced ALF by changing gut microbiota that inhibit CYP2E1, specifically increasing levels of indole-3-carboxylic acid (I3C).
  • The study identified a key enzyme, formate C-acetyltransferase (pflB), in Bifidobacterium that aids I3C production, which inactivates CYP2E1 and reduces liver damage, showcasing the beneficial interaction between Mg and gut microbiota in preventing ALF.
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Background: Interplay between gut microbiota and heart, termed "gut-heart" axis, has a crucial role in the pathogenesis of atherosclerosis. Our previous study showed that lycopene possesses anti-inflammatory and anti-atherosclerotic effects, but its link to the gut microbiota is poorly understood. Herein, we surmised that lycopene could regulate the gut microbiota, exert anti-atherosclerotic effect by regulating the "gut-heart" axis.

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Article Synopsis
  • Human Amniotic Mesenchymal Stem Cells (hAMSCs) can differentiate in various ways, and when combined with Angiotensin-Converting Enzyme 2 (ACE2) through lentivirus transfection, their potential is enhanced, particularly for treating pulmonary arterial hypertension.
  • The study involved creating ACE2-hAMSCs and assessing their ability to migrate and form new blood vessels, alongside monitoring gene expression related to angiogenesis and inflammation using animal models.
  • Results showed that ACE2-hAMSCs exhibited greater migration and angiogenesis compared to regular hAMSCs and also demonstrated reduced lung inflammation, indicating their effectiveness in repairing damage from pulmonary hypertension.
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An engineered Escherichia coli Nissle strain prevents lethal liver injury in a mouse model of tyrosinemia type 1.

J Hepatol

March 2024

Department of Gastroenterology, Shenzhen Hospital, Southern Medical University, Shenzhen, 518110, China; Department of Pathophysiology, Guangdong Provincial Key Laboratory of Proteomics, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China; Microbiome Medicine Center, Zhujiang Hospital, Southern Medical University, Guangzhou, 510515, China. Electronic address:

Background & Aims: Hereditary tyrosinemia type 1 (HT1) results from the loss of fumarylacetoacetate hydrolase (FAH) activity and can lead to lethal liver injury. Therapeutic options for HT1 remain limited. In this study, we aimed to construct an engineered bacterium capable of reprogramming host metabolism and thereby provide a potential alternative approach for the treatment of HT1.

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