991 results match your criteria: "College of Laboratory Medicine[Affiliation]"

Article Synopsis
  • * The study analyzed fecal samples from healthy controls, LTBI, and ATB patients, finding significant differences in gut bacterial diversity and microbial communities, with ATB patients showing notably reduced bacterial diversity.
  • * Additionally, metabolic pathways related to purine and pyrimidine degradation were upregulated in LTBI and ATB patients, with specific metabolites identified that could distinguish between LTBI and healthy controls, indicating a link between gut microbiome changes and LTBI pathogenesis.
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Purpose: Regenerating islet-derived protein 4 (REG4) is a secretory protein that belongs to the C-type lectin superfamily. This study aims to explore the diagnostic value of REG4 as a potential biomarker for metabolic syndrome by analyzing the correlation between serum REG4 levels and metabolic syndrome.

Methods: Serum REG4 levels were measured using enzyme-linked immunosorbent assay (ELISA).

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Dysregulation of epigenetic modifications in inborn errors of immunity.

Epigenomics

October 2024

The Ministry of Education Key Laboratory of Laboratory Medical Diagnostics, College of Laboratory Medicine, Chongqing Medical University, Chongqing, 400016, China.

Inborn errors of immunity (IEIs) are a group of typically monogenic disorders characterized by dysfunction in the immune system. Individuals with these disorders experience increased susceptibility to infections, autoimmunity and malignancies due to abnormal immune responses. Epigenetic modifications, including DNA methylation, histone modifications and chromatin remodeling, have been well explored in the regulation of immune cell development and effector function.

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Currently, the combination of atezolizumab and bevacizumab (Atez/Bev) is recommended as the first-line therapy for patients with advanced hepatocellular carcinoma (HCC). However, there is a lack of research on the levels of nutrient elements in advanced HCC patients receiving Atez/Bev treatment. In this study, data from 35 patients with advanced HCC and 37 healthy individuals of similar age and sex were included.

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Understanding the nature of life and its propensity for reproduction has long been a question that humans aspire to answer. Reproduction, a defining characteristic of life, fundamentally involves the replication of genetic material, be it DNA or RNA. The driving force behind this replication process has always intrigued scientists.

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Article Synopsis
  • Female fertility is essential for family well-being, but factors like chemotherapy and lifestyle changes can negatively affect it, highlighting the need for preservation and restoration efforts.
  • Stem cells offer potential solutions through advancements in areas like ovarian tissue freezing, in vitro culture of ovarian tissue, and creating ovarian-like organs.
  • The review discusses the importance of stem cell technology in fertility preservation, the need for interdisciplinary collaboration, and personalized treatment strategies for effective fertility solutions.
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Article Synopsis
  • The study investigates the role of nucleobindin-2 (NUCB2)/nesfatin-1 in the hypothalamus and its effect on liver steatosis, a condition characterized by excess fat buildup in the liver.
  • Researchers created Nucb2 knockout rats and used continuous nesfatin-1 infusion to assess its impact on obesity and liver health, revealing that nesfatin-1 can alleviate liver fat accumulation by regulating stress responses in the hypothalamus.
  • The results indicate that effective nesfatin-1 signaling is crucial for reducing liver steatosis and involves intricate mechanisms linked to insulin resistance and vagal nerve communication, highlighting its potential as a therapeutic target for obesity-related liver issues.
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Malignant transformation of cancer is often accompanied by aberrant glycopatterns. Epithelial-mesenchymal transition (EMT) is a crucial biological process in cancer migration and invasion, accelerating cancer deterioration. High-precision analysis of protein-glycan spatial profiling in the EMT process is essential for elucidating glycosylation functions and cancer progression.

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Sulfur dioxide (SO) is one of the major pollutants in the atmosphere, which is highly susceptible to inhalation by the human body and is converted into its derivatives (HSO/SO), which is hazardous to both human health and the ecological environment. Therefore the detection of SO derivatives (HSO/SO) is very important. In this work, we have prepared ID-QL, a water-soluble fluorescent probe based on the intramolecular charge transfer (ICT) mechanism, it exhibits colorimetric and fluorescent dual-channel response to HSO with ultrafast, highly selective and sensitive detection.

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Enzyme-accelerated catalytic DNA circuits enable rapid and one-pot detection of bacterial pathogens.

Biosens Bioelectron

January 2025

School of Medicine, Xi'an Jiaotong University, 710061, Xi'an, PR China; Department of Clinical Laboratory, The First Affiliated Hospital of Xi'an Jiaotong University, 710061, Xi'an, PR China. Electronic address:

Article Synopsis
  • Catalytic DNA circuits are useful for detecting harmful bacteria, but they have limitations in speed and effectiveness, prompting the development of EACHA, which enhances reaction rates and sensitivity.
  • EACHA improves detection capabilities significantly, achieving about 37.6 times faster rates and allowing detection of S. enterica Enteritidis at very low concentrations (15 CFU/mL) in just 20 minutes.
  • The method has shown high accuracy in testing milk samples (AUC of 0.997) and diagnosing early infections in mice, proving its potential for identifying pathogens in complex environments.
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Smart Implantable Hydrogel for Large Segmental Bone Regeneration.

Adv Healthc Mater

December 2024

The Center for Clinical Molecular Medical Detection, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, P. R. China.

Large segmental bone defects often lead to nonunion and dysfunction, posing a significant challenge for clinicians. Inspired by the intrinsic bone defect repair logic of "vascularization and then osteogenesis", this study originally reports a smart implantable hydrogel (PDS-DC) with high mechanical properties, controllable scaffold degradation, and timing drug release that can proactively match different bone healing cycles to efficiently promote bone regeneration. The main scaffold of PDS-DC consists of polyacrylamide, polydopamine, and silk fibroin, which endows it with superior interfacial adhesion, structural toughness, and mechanical stiffness.

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Homologous cell membrane-based hydrogel creates spatiotemporal niches to improve outcomes of dysregulated chronic wound healing.

Mater Today Bio

October 2024

The M.O.E. Key Laboratory of Laboratory Medical Diagnostics, The College of Laboratory Medicine, Chongqing Medical University, #1 Yixueyuan Road, Yuzhong District, Chongqing, 400016, China.

The (M2M + TGF-β)@HAMA hydrogel dressing improves the outcomes of dysregulated chronic wound healing by protecting the open wound from repeated bacterial infections, reprogramming endogenous monocytes and M1 macrophages into an M2-phenotype, as well as enhancing fibroblastic proliferation and migration for matrix remodeling and granulation tissue formation.Image 1.

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A colorimetric-aptamer-based assay for the determination of enrofloxacin through triggering the aggregation of gold nanoparticles.

Anal Methods

October 2024

College of Laboratory Medicine, Institute of Pathogen Biology and Immunology, Hebei Key Laboratory of Neuropharmacology, Hebei Key Laboratory of Quality & Safety Analysis-Testing for Agro-Products and Food, Zhang Jiakou Key Laboratory of Organic Light Functional Materials, Hebei North University, Zhangjiakou, 075000, Hebei Province, China.

Although enrofloxacin (ENR) is a widely used broad-spectrum antibiotic in veterinary medicine, its residues in animals can pose a risk to human health. Thus, we developed a new method for detecting ENR based on aptamers and AuNPs. In the absence of ENR, the aptamers attached to the surface of the AuNPs electrostatic interactions to protect the AuNPs from NaCl, and the solution remained red.

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PdPtCu mesoporous nanocube-based electrochemical sandwich immunosensor for detection of HIV-p24.

Bioelectrochemistry

February 2025

Key Laboratory of Clinical Laboratory Diagnostics (Ministry of Education), College of Laboratory Medicine, Chongqing Medical University, Chongqing 400016, China. Electronic address:

Article Synopsis
  • A novel enzyme-free electrochemical biosensor using palladium-platinum-copper mesoporous nanocubes (PdPtCu MNCs) was developed to detect HIV-p24 with high sensitivity.
  • PdPtCu MNCs demonstrate strong peroxidase activity due to their unique composition and structure, while gold nanoparticles combined with graphene oxide enhance the sensor's performance.
  • The immunosensor shows a linear detection range from 0.04 pg/mL to 100 ng/mL and can effectively function in human serum, representing a promising advance in clinical diagnostics for HIV detection.
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Novel insights from human induced pluripotent stem cells on origins and roles of fibro/adipogenic progenitors as heterotopic ossification precursors.

Front Cell Dev Biol

September 2024

Department of Clinical Application, Center for iPS Cell Research and Application (CiRA), Kyoto University, Kyoto, Japan.

Article Synopsis
  • Fibro/adipogenic progenitors (FAPs) are important cells in muscle tissue that help with muscle maintenance and repair by releasing signaling molecules and extracellular matrix components.
  • FAPs exhibit diverse traits and functions during injury or disease, influenced by their origins and the surrounding tissue environment.
  • Recent studies using advanced techniques highlight the need to explore FAPs' developmental origins to better understand their roles and potential in conditions like heterotopic ossification.
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To investigate the inhibitory effect of antimicrobial peptide merecidin on triple-negative breast cancer (TNBC) and the mechanism of inhibiting epithelial-mesenchymal transformation (EMT) by regulating miR-30d-5p/vimentin. TNBC cell lines (MDA-MB-231, MDA-MB-468) were treated with merecidin to assess proliferation, migration, invasion ability, and EMT. Confocal laser localization was used to examine the role of merecidin and TNBC cells.

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Article Synopsis
  • Hydrazine (NH) is an important industrial chemical with various applications, but excessive residue poses significant toxicity risks to ecosystems and human health; thus, rapid detection methods are needed.
  • A new red emission fluorescent probe called BCM was developed, which can detect NH through colorimetric and fluorescence responses, with a low detection limit and strong anti-interference capability.
  • The BCM probe can be used in a smartphone-based sensing platform to quickly detect NH in various samples (e.g., lake water, soil, plants, food), making it a valuable tool for food safety, bioimaging, and environmental protection.
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N6-methyladenosine demethylase FTO regulates neuronal oxidative stress via YTHDC1-ATF3 axis in arsenic-induced cognitive dysfunction.

J Hazard Mater

December 2024

Department of Occupational and Environmental Health, School of Public Health, Chongqing Medical University, Chongqing 400016, China; Research Center for Environment and Human Health, Chongqing Medical University, Chongqing 400016, China. Electronic address:

Excessive exposure to metals in daily life has been proposed as an environmental risk factor for neurological disorders. Oxidative stress is an inevitable stage involved in the neurotoxic effects induced by metals, nevertheless, the underlying mechanisms are still unclear. In this study, we used arsenic as a representative environmental heavy metal to induce neuronal oxidative stress and demonstrated that both in vitro and in vivo exposure to arsenic significantly increased the level of N6-methyladenosine (m6A) by down-regulating its demethylase FTO.

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An IGHG1 variant exhibits polarized prevalence and confers enhanced IgG1 antibody responses against life-threatening organisms.

Nat Immunol

October 2024

School of Life Sciences, Institute for Immunology, State Key Laboratory of Membrane Biology, China Ministry of Education Key Laboratory of Protein Sciences, Beijing Key Lab for Immunological Research on Chronic Diseases, Beijing Tsinghua Changgung Hospital, Tsinghua University, Beijing, China.

Evolutionary pressures sculpt population genetics, whereas immune adaptation fortifies humans against life-threatening organisms. How the evolution of selective genetic variation in adaptive immune receptors orchestrates the adaptation of human populations to contextual perturbations remains elusive. Here, we show that the G396R coding variant within the human immunoglobulin G1 (IgG1) heavy chain presents a concentrated prevalence in Southeast Asian populations.

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[Tetrapeptide repeat domain 36 (TTC36) inhibits the inflammatory response of HK2 cells by enhancing the expression of IκBα to inhibit the activation of NF-κB signaling pathway].

Xi Bao Yu Fen Zi Mian Yi Xue Za Zhi

August 2024

The Ministry of Education Key Laboratory of Clinical Diagnostics, College of Laboratory Medicine, Chongqing Medical University, Chongqing 400016, China, *Corresponding author, E-mail:

Objective To investigate the effects and underlying mechanisms of tetratricopeptide repeat domain 36 (TTC36) on injury of HK2 renal tubular epithelial cell. Methods HK2 stable cell lines expressing either TTC36 and an empty vector control-CMV-Flag were generated with lentivirus . The mRNA expression level of tumor necrosis factor α (TNF-α), inducible nitric oxide synthase(iNOS), interleukin 6(IL-6), C-C motif chemokine ligand 2(CCL2), IL-1β, inhibitor of nuclear factor κB α(IκBα) and nuclear factor κB p65(NF-κB p65) were analyzed by real time quantitative PCR (qRT-PCR).

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Signaling molecules in the microenvironment of hepatocellular carcinoma.

Funct Integr Genomics

August 2024

The Key Laboratory of Molecular Biology of Infectious Diseases Designated By the Chinese Ministry of Education, Chongqing Medical University, Chongqing, 400016, China.

Article Synopsis
  • - Hepatocellular carcinoma (HCC) is a type of liver cancer known for its high rates of recurrence and ability to spread to other areas.
  • - The tumor microenvironment, which includes various cellular components and signaling molecules like chemokines, growth factors, and cytokines, plays a significant role in the metastasis and invasion of HCC.
  • - This review focuses on how these signaling molecules affect HCC cells within their microenvironment, aiming to shed light on HCC development and identify potential therapeutic targets.
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The intratumoral microbiota: a new horizon in cancer immunology.

Front Cell Infect Microbiol

August 2024

College of Basic Medicine, Jilin Medical University, Jilin, China.

Over the past decade, advancements in high-throughput sequencing technologies have led to a qualitative leap in our understanding of the role of the microbiota in human diseases, particularly in oncology. Despite the low biomass of the intratumoral microbiota, it remains a crucial component of the tumor immune microenvironment, displaying significant heterogeneity across different tumor tissues and individual patients. Although immunotherapy has emerged a major strategy for treating tumors, patient responses to these treatments vary widely.

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Background: Helicobacter pylori infection is a significant pathogen in gastrointestinal diseases. Previous studies have identified single-nucleotide polymorphisms (SNPs) are factors associated with H. pylori infection.

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