4,387 results match your criteria: "Guangzhou women and Children's Medical Center[Affiliation]"

Palmitoylation acts as a checkpoint for MAVS aggregation to promote antiviral innate immune responses.

J Clin Invest

December 2024

MOE Key Laboratory of Gene Function and Regulation, Guangdong Province Key Laboratory of Pharmaceutical Functional Genes, State Key Laboratory of Biocontrol, Innovation Center of the Sixth Affiliated Hospital, School of Life Sciences of Sun Yat-sen University, Guangzhou, Guangdong, China.

Upon RNA virus infection, the signaling adaptor MAVS forms functional prion-like aggregates on the mitochondrial outer membrane, which serve as a central hub that links virus recognition to downstream antiviral innate immune responses. Multiple mechanisms regulating MAVS activation have been revealed; however, the checkpoint governing MAVS aggregation remains elusive. Here, we demonstrated that the palmitoylation of MAVS at cysteine 79 (C79), which is catalyzed mainly by the palmitoyl S-acyltransferase ZDHHC12, was essential for MAVS aggregation and antiviral innate immunity upon viral infection in macrophages.

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Combined first-trimester screening vs non-invasive prenatal testing.

Ultrasound Obstet Gynecol

December 2024

Prenatal Diagnostic Center, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, Guangdong, China.

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[This corrects the article DOI: 10.3389/fcell.2024.

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There are no established diagnostic criteria for neonatal vitamin A deficiency (VAD), and applying adult VAD criteria to neonates may overestimate the neonatal VAD rate. This study aimed to evaluate neonatal vitamin A (VA) status and redefine thresholds for neonatal VA adequacy and deficiency based on maternal VA nutrition. A cross-sectional study involving 1901 mother-neonate pairs was conducted in Chongqing, China.

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Research on virus/receptor interactions has uncovered various mechanisms of antibody-mediated neutralization against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). However, understanding of neutralization by antibodies targeting the silent face, which recognize epitopes on glycan shields, remains limited, and their potential protective efficacy in vivo is not well understood. This study describes a silent face neutralizing antibody, 3711, which targets a non-supersite on the N-terminal domain (NTD) of the spike protein.

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Article Synopsis
  • LncRNAs are important in various biological processes and have been linked to recurrent spontaneous miscarriage; this study focuses on the rs13252298 A > G polymorphism's role in this risk.
  • The research involved 695 healthy controls and 413 miscarriage patients, using the TaqMan method for genotyping.
  • Results indicated that the rs13252298 A > G polymorphism is associated with a lower susceptibility to recurrent spontaneous miscarriage, suggesting it could be a biomarker for risk assessment and prevention.
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A catalog of gene editing sites and genetic variations in editing sites in model organisms.

BMC Genomics

November 2024

CAS Key Laboratory of Computational Biology, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China.

Background: CRISPR-Cas systems require a protospacer adjacent motif (PAM), which plays an essential role in self/non-self discrimination in their natural context, to cleave DNA for genome editing. Unfortunately, common genetic variation is distributed throughout genomes, which can block recognition of target sites by Cas proteins. However, little information is available about the distribution of editing sites in model organisms and how often common variation overlaps with those PAM sites.

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Background: Breastmilk is widely regarded as the healthiest choice for both infants and mothers due to its numerous advantages over formula, such as higher concentrations of essential nutrients and antibodies, easier digestion, and superior taste. The World Health Organization International Code of Marketing of Breast-milk Substitutes was adopted over 40 years ago to mitigate the effects of infant formula marketing on a woman's decision to breastfeed. Yet, the commercial formula milk industry has continued to market their products aggressively and through an increasing variety of social media channels.

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PhyloForge: Unifying Micro- and Macroevolution With Comprehensive Genomic Signals.

Mol Ecol Resour

November 2024

National Key Laboratory for Tropical Crop Breeding, College of Breeding and Multiplication, Sanya Institute of Breeding and Multiplication, Hainan University, Sanya, China.

The dimensions of phylogenetic research have expanded to encompass the study of large-scale populations at the microevolutionary level and comparisons between different species or taxonomic units at the macroevolutionary level. Traditional phylogenetic tools often struggle to handle the diverse and complex data required for these different evolutionary scales. In response to this challenge, we introduce PhyloForge, a robust tool designed to seamlessly integrate the demands of both micro- and macroevolution, comprehensively utilising diverse phylogenomic signals, such as genes, SNPs, and structural variations, as well as mitochondrial and chloroplast genomes.

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Purpose: The objective of this study was to investigate the behavioral changes in the core features and challenging behaviors of children with Autism Spectrum Disorder (ASD) during the COVID-19 Omicron wave (from December 2022 to January 2023) in China.

Patients And Methods: A total of 515 caregivers of children with ASD completed an online survey. This survey was designed to assess the sociodemographic characteristics of the children and their caregivers, the clinical features of COVID-19, the manifestation of core ASD features and challenging behaviors, and the alterations in daily life following the COVID-19 Omicron variant wave.

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[CHARGE syndrome in a neonate].

Zhongguo Dang Dai Er Ke Za Zhi

November 2024

Center for Newborn Care, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou 510623, China.

Article Synopsis
  • * Despite treatment efforts including ventilator support and surgery, her condition did not improve, leading to genetic testing which revealed a mutation linked to CHARGE syndrome.
  • * Ultimately, the family chose to stop treatment due to the infant's poor prognosis, highlighting the importance of early diagnosis and informed decision-making in complex genetic disorders.
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Article Synopsis
  • Acute lymphoblastic leukemia (ALL) is a common childhood cancer with poor outcomes for relapsed cases, highlighting the need for new treatments.
  • Research on the compound MG132 shows it effectively reduces cell growth and induces cell death in ALL cells by targeting the Akt/FOXO3a/Bim signaling pathway.
  • MG132 demonstrated significant tumor suppression in mouse models, suggesting it could be a potential new therapy for ALL.
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Article Synopsis
  • - Diarrhea poses a significant health risk to children under five, and the study analyzes data to understand its global impact and identify effective prevention strategies.
  • - An analysis of Global Burden of Disease data from 1990 to 2021 shows a notable decline in diarrhea incidence, prevalence, mortality, and disability-adjusted life years (DALYs) among young children, indicating progress.
  • - Future projections (2022-2035) suggest continued reductions in diarrhea rates, with major causes of mortality identified as wasting, underweight, and lack of exclusive breastfeeding, and rotavirus being the main pathogen linked to severe outcomes.
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Aptamer sgc8-Modified PAMAM Nanoparticles for Targeted siRNA Delivery to Inhibit BCL11B in T-Cell Acute Lymphoblastic Leukemia.

Int J Nanomedicine

November 2024

Key Laboratory for Regenerative Medicine of Ministry of Education, Institute of Hematology, School of Medicine, Jinan University, Guangzhou, 510632, People's Republic of China.

Introduction: T-cell acute lymphoblastic leukemia (T-ALL) is a malignant hematological disease with limited targeted therapy options. Overexpression of B-cell lymphoma/leukemia 11B is frequently observed in T-ALL and contributes to leukemogenesis. Knockdown of BCL11B inhibits T-ALL cell proliferation and induces apoptosis, making it a potential therapeutic target.

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Melatonin treatment increases skin microbiota-derived propionic acid to alleviate atopic dermatitis.

J Allergy Clin Immunol

November 2024

Department of Plastic and Aesthetic Surgery, Nanfang Hospital of Southern Medical University, Guangzhou, China; Department of Dermatology, Johns Hopkins University School of Medicine, Baltimore, Md. Electronic address:

Background: Melatonin has been reported to relieve the inflammatory symptoms and improve sleep disturbance in patients with atopic dermatitis (AD). Recent studies showed that melatonin produced beneficial effects by remodeling intestinal microbiota composition; however, whether the beneficial effects of melatonin in AD were mediated by the modulation of skin microbiota remains unclear.

Objective: We sought to investigate the mechanism by which melatonin treatment-induced changes in the skin microbiota composition further alleviated AD.

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Long noncoding RNAs have emerged as key players in the progression of head and neck squamous cell carcinoma (HNSC). Among them, ZEB1-AS1 was identified as an upregulated candidate in HNSC through comprehensive analysis of RNA-sequencing datasets. Here, elevated ZEB1-AS1 expression was correlated with poor prognosis in HNSC patients.

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YTHDF3 rs7464 A > G polymorphism increases Chinese neuroblastoma risk: A multiple-center case-control study.

IUBMB Life

January 2025

Department of Pediatric Surgery, Guangzhou Institute of Pediatrics, Guangdong Provincial Key Laboratory of Research in Structural Birth Defect Disease, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China.

Neuroblastoma (NB), a rare childhood cancer originating in nerve tissue. YTHDF3, a member of the YTH domain protein family, is involved in RNA m6A modification and cancer progression. Polymorphisms in YTHDF3 may influence its expression and biological function.

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Rabeprazole suppressed gastric intestinal metaplasia through activation of GPX4-mediated ferroptosis.

Front Pharmacol

November 2024

Department of Gastroenterology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China.

Article Synopsis
  • Gastric intestinal metaplasia is commonly observed in patients with bacterial infection, and rabeprazole is the first-line treatment used to address this condition.
  • The study uses various scientific techniques to demonstrate that rabeprazole promotes ferroptosis, a form of cell death, which helps reduce the expression of proteins associated with gastric intestinal metaplasia, namely CDX2 and MUC2.
  • The mechanism involves the suppression of CREB signaling, leading to decreased GPX4 levels, indicating that targeting ferroptosis could be an effective approach to manage gastric intestinal metaplasia in infected patients.
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Background: Langerhans cell histiocytosis (LCH) is a systemic neoplasia with diverse clinical manifestations, predominantly affecting bone and skin. However, in children, LCH presenting primarily with cholestasis is rare.

Case Summary: We present the case of a 22-month-old boy who was admitted to our hospital with a history of intermittent fever and abdominal distension for over 2 months, and jaundice for over 1 month.

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Itaconic acid ameliorates necrotizing enterocolitis through the TFEB-mediated autophagy-lysosomal pathway.

Free Radic Biol Med

January 2025

Department of Pediatrics, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510655, China; Biomedical Innovation Center, The Sixth Affiliated Hospital, Sun Yat-sen University, 510655, China; Department of Pediatrics, Xinyi People's Hospital, Maoming, 525300, China. Electronic address:

Excessive autophagy has been implicated in the pathogenesis of necrotizing enterocolitis (NEC), yet the molecular underpinnings of the autophagy-lysosomal pathway (ALP) in NEC are not well characterized. This study aimed to elucidate alterations within the ALP in NEC by employing RNA sequencing on intestinal tissues obtained from affected infants. Concurrently, we established animal and cellular models of NEC to assess the therapeutic efficacy of itaconic acid (ITA).

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Association of childhood obesity with pubertal development in boys: A systematic review and meta-analysis.

Obes Rev

November 2024

The Born in Guangzhou Cohort Study Group, Department of Pediatrics, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China.

Childhood obesity leads to early puberty development in girls, but its effect in boys remains unclear. We conducted a systematic review and meta-analysis to study the association between childhood obesity and puberty development in boys. We included 14 cohort studies with 114,822 boys.

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Elucidating the pathophysiology of polycystic ovary syndrome: Construction and analysis of a ceRNA network in cumulus cells.

Reprod Biol

November 2024

Department of Reproductive Medicine, Guangzhou Women and Children's Medical center Liuzhou Hospital, Liuzhou, Guangxi 545616, China; Department of Reproductive Medicine, Liuzhou maternity and Child Healthcare Hospital, Liuzhou, Guangxi 545001, China; Guangxi Clinical Research Center for Obstetrics and Gynecology, China; Liuzhou Key Laboratory of Gynecologic Tumor, China. Electronic address:

Article Synopsis
  • Polycystic Ovary Syndrome (PCOS) is a complex disorder, and this study focuses on the competitive endogenous RNA (ceRNA) network in the cumulus cells of PCOS patients, exploring how different RNA types interact to regulate gene expression.
  • Analyzing data from two cohorts of PCOS patients and healthy controls, the study identified a significant ceRNA network with 5 lncRNAs, 3 miRNAs, and 36 mRNAs that show differential expression, highlighting their potential roles in the disease's biological processes.
  • The study suggests that the specific HOXA11-AS-hsa-miR-454-3p-CCND2 network could serve as a promising biomarker for diagnosing PCOS,
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Cerebrospinal fluid neurofilament light chain levels in children with acquired demyelinating syndrome.

Front Pediatr

November 2024

Department of Neurology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, Guangdong, China.

Objective: To study the cerebrospinal fluid (CSF) neurofilament light chain (NfL) in pediatric acquired demyelinating syndrome (ADS) and its association with factors of laboratory and imaging results.

Methods: We analyzed clinical data from children with ADS collected from May 2020 to January 2021 at the Department of Neurology of Guangzhou Women and Children's Medical Center. Enzyme-linked immunosorbent assays were used to detect the CSF NfL of patients.

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Background: Milk allergy commonly occurs in children, mainly caused by bovine-derived casein (CAS) protein. Neutrophil-activating protein (NAP) of plays an immunomodulatory role with potential to suppress Th2-type immune responses. () spores are commonly used as oral vectors for drug delivery.

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CAUSALdb2: an updated database for causal variants of complex traits.

Nucleic Acids Res

January 2025

Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China.

Article Synopsis
  • Unraveling causal variants in genome-wide association studies (GWASs) is essential for understanding the genetics behind complex traits and diseases, but current tools need improvement to identify these variants accurately.
  • CAUSALdb has been enhanced to CAUSALdb2, now featuring over 15,000 updated GWAS summary statistics and implementing both LD-based and LD-free fine-mapping methods to improve the detection of causal genetic variations.
  • The updated database provides better accuracy through larger reference panels and functional annotations, enabling researchers to visualize and understand the genetic factors of complex diseases more effectively, while remaining freely accessible for continued genetic research.
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