818 results match your criteria: "School of Basic Medicine Peking Union Medical College.[Affiliation]"

Profiling of long non-coding RNAs in hippocampal-entorhinal system subfields: impact of RN7SL1 on neuroimmune response modulation in Alzheimer's disease.

J Neuroinflammation

April 2024

Department of Human Anatomy, Histology and Embryology, Neuroscience Center, National Human Brain Bank for Development and Function, Institute of Basic Medical Sciences Chinese Academy of Medical Sciences, School of Basic Medicine Peking Union Medical College, Beijing, China.

Alzheimer's disease (AD) is recognized as the predominant cause of dementia, and neuroimmune processes play a pivotal role in its pathological progression. The involvement of long non-coding RNAs (lncRNAs) in AD has attracted widespread attention. Herein, transcriptomic analysis of 262 unique samples extracted from five hippocampal-entorhinal system subfields of individuals with AD pathology and without AD pathology revealed distinctive lncRNA expression profiles.

View Article and Find Full Text PDF

Association Between Renal Function and Mortality Among Patients With Acute Pulmonary Embolism in Plateau Regions: A Retrospective Cohort Study.

Arch Bronconeumol

August 2024

Department of Respiratory and Critical Care Medicine, Qinghai Provincial People's Hospital, Qinghai University, Xining, China; Department of Respiratory and Critical Care Medicine, Beijing Institute of Respiratory Medicine and Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China. Electronic address:

View Article and Find Full Text PDF

The pathogenic mechanism of syndactyly type V identified in a Hoxd13Q50R knock-in mice.

Bone Res

April 2024

McKusick-Zhang Center for Genetic Medicine, State Key Laboratory of Complex Severe and Rare Diseases, Department of Medical Genetics, Institute of Basic Medical Sciences Chinese Academy of Medical Sciences, School of Basic Medicine Peking Union Medical College, Beijing, 100005, China.

Syndactyly type V (SDTY5) is an autosomal dominant extremity malformation characterized by fusion of the fourth and fifth metacarpals. In the previous publication, we first identified a heterozygous missense mutation Q50R in homeobox domain (HD) of HOXD13 in a large Chinese family with SDTY5. In order to substantiate the pathogenicity of the variant and elucidate the underlying pathogenic mechanism causing limb malformation, transcription-activator-like effector nucleases (TALEN) was employed to generate a Hoxd13Q50R mutant mouse.

View Article and Find Full Text PDF

Internal m 6 A and m 7 G RNA modifications in hematopoietic system and acute myeloid leukemia.

Chin Med J (Engl)

May 2024

State Key Laboratory of Common Mechanism Research for Major Diseases, State Key Laboratory for Complex, Severe, and Rare Diseases, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences / Peking Union Medical College, Beijing 100005, China.

Epitranscriptomics focuses on the RNA-modification-mediated post-transcriptional regulation of gene expression. The past decade has witnessed tremendous progress in our understanding of the landscapes and biological functions of RNA modifications, as prompted by the emergence of potent analytical approaches. The hematopoietic system provides a lifelong supply of blood cells, and gene expression is tightly controlled during the differentiation of hematopoietic stem cells (HSCs).

View Article and Find Full Text PDF

Anti-Tumor Potential of Post-Translational Modifications of PD-1.

Curr Issues Mol Biol

March 2024

State Key Laboratory of Respiratory Health and Multimorbidity, Institute of Medical Biotechnology, Chinese Academy of Medical Sciences, School of Basic Medicine Peking Union Medical College, Beijing 100005, China.

Article Synopsis
  • Programmed cell death protein-1 (PD-1) is an important immune checkpoint that is affected by various post-translational modifications, influencing its behavior and interactions within the immune system.
  • Recent studies have focused on specific types of these modifications, such as ubiquitination and glycosylation, to understand their role in PD-1's function and how they might be targeted for new therapies.
  • Current immunotherapies targeting PD-1/PD-L1 only benefit a portion of patients (35-45%), highlighting the need for innovative approaches that address the challenges faced by non-responders to these treatments.
View Article and Find Full Text PDF
Article Synopsis
  • - The study investigates the role of the immune system, specifically complements and immunoglobulin levels, in the progression of moyamoya disease (MMD) by comparing serum samples from 84 MMD patients and 70 healthy individuals.
  • - Results indicate that MMD patients have lower serum levels of complement C3, particularly those in late-stage disease, and identified age, diastolic blood pressure, and complement C3 as significant factors associated with the progression of vasculopathy.
  • - The findings suggest that complement C3 levels could be linked to the advancement of MMD, highlighting its potential role in the disease's development and progression.
View Article and Find Full Text PDF

The aldehyde dehydrogenase 2 rs671 variant enhances amyloid β pathology.

Nat Commun

March 2024

Department of Immunology, Institute of Basic Medical Sciences Chinese Academy of Medical Sciences, School of Basic Medicine Peking Union Medical College, Beijing, China.

In the ALDH2 rs671 variant, a guanine changes to an adenine, resulting in a dramatic decrease in the catalytic activity of the enzyme. Population-based data are contradictory about whether this variant increases the risk of Alzheimer's disease. In East Asian populations, the prevalence of the ALDH2 rs671 variant is 30-50%, making the National Human Brain Bank for Development and Function (the largest brain bank in East Asia) an important resource to explore the link between the ALDH2 rs671 polymorphism and Alzheimer's disease pathology.

View Article and Find Full Text PDF

Introduction: Obesity not only affects human health but also is an important risk factor for a variety of chronic diseases. Therefore, it is particularly important to analyse the epidemic trend of obesity and actively carry out the prevention and control of obesity in the population.

Material And Methods: A total of 4565 adults were selected by multi-stage stratified random sampling in Shenmu, Shaanxi Province, China.

View Article and Find Full Text PDF

Objectives: This research aimed to explore the prevalence and determinants of overweight, obesity, and central obesity in Shenmu City, Shaanxi Province, China and to offer guidance for preventative health measures.

Methods: We conducted a multi-stage, stratified random sampling survey among 4,565 residents of Shenmu City. Data collection included questionnaires and anthropometric assessments to gather socio-demographic data and to identify cases of overweight, obesity, and central obesity.

View Article and Find Full Text PDF

Joint and interactive effects of metal mixtures on liver damage: Epidemiological evidence from repeated-measures study.

Ecotoxicol Environ Saf

April 2024

Department of Epidemiology and Biostatistics, Institute of Basic Medical Sciences Chinese Academy of Medical Sciences, School of Basic Medicine Peking Union Medical College, Beijing 100005, China; Center of Environmental and Health Sciences, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100005, China. Electronic address:

Background: The impact of heavy metals on liver function has been examined in numerous epidemiological studies. However, these findings lack consistency and longitudinal validation.

Methods: In this study, we conducted three follow-up surveys with 426 participants from Northeast China.

View Article and Find Full Text PDF

SWCNTs/PEDOT:PSS nanocomposites-modified microelectrode arrays for revealing locking relations between burst and local field potential in cultured cortical networks.

Biosens Bioelectron

June 2024

State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Science, Beijing, 100190, China; School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing, 100149, China. Electronic address:

Article Synopsis
  • Burst and local field potential (LFP) are essential to understanding brain activity, with bursts representing fast rhythms and LFP representing slower ones.
  • The study created high-performance microelectrode arrays (MEAs) using SWCNTs/PEDOT:PSS nanocomposites, which showcased excellent electrical properties for examining burst-LFP interactions in cultured cortical networks.
  • Results indicated that increased glycine concentrations modified burst firing patterns, enhancing time-locking between burst and LFP while decreasing neuronal synchrony, offering insights into potential treatments for neurological disorders linked to abnormal rhythms.
View Article and Find Full Text PDF

A Dataset on Population Activity Patterns in Typical Regions of North China.

Chin Med Sci J

March 2024

Department of Medical Data Sharing, Institute of Medical Information & Library, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100020, China.

This data article describes the "Typical Regional Activity Patterns" (TRAP) dataset, which is based on the Tackling Key Problems in Air Pollution Control Program. In order to explore the interaction between air pollution and physical activity, we collected activity patterns of 9,221 residents with different occupations and lifestyles for three consecutive days in typical regions (Jinan and Baoding) where air pollutant concentrations were higher than those in neighboring areas. The TRAP dataset consists of two aspects of information: demographic indicators (personal information, occupation, personal habits, and living situation) and physical activity pattern data (activity location and intensity); additionally, the exposure measures of physical activity patterns are included, which data users can match to various endpoints for their specific purpose.

View Article and Find Full Text PDF

Novel homozygous ADK out-of-frame deletion causes adenosine kinase deficiency with rare phenotypes of sepsis, metabolites disruption and neutrophil dysfunction.

Gene

July 2024

McKusick-Zhang Center for Genetic Medicine, State Key Laboratory for Complex Severe and Rare Diseases, Institute of Basic Medical Sciences Chinese Academy of Medical Sciences, School of Basic Medicine Peking Union Medical College, Beijing, China. Electronic address:

Adenosine kinase deficiency (OMIM #614300) is a type of inborn errors of metabolism with multiorgan symptoms primarily neurological disorders, hepatic impairment, global developmental delay, and mild dysmorphism. The genetic causes of adenosine kinase deficiency are homozygous or compound heterozygous loss-of-function variants of ADK. To date, fewer than 25 cases of adenosine kinase deficiency have been reported worldwide and none have been reported in China.

View Article and Find Full Text PDF

Cellular senescence is an irreversible and multifaceted process inducing tissue dysfunction and organismal aging, and thus the clearance of senescent cells can prevent or delay the onset of aging-related pathologies. Herein, we developed an augmented photothermal therapy strategy integrated with an antibody against β2-microglobulin (aB2MG) and an immune adjuvant imiquimod (R837) to effectively accelerate senescent cell apoptosis and clearance under a near-infrared light. With this strategy, the designed CroR@aB2MG enables the targeting of senescent cells and the application of photothermal therapy concomitantly, the initiation of immune clearance subsequently, and finally the realization of protective effects against senescence.

View Article and Find Full Text PDF

Self-Assembled DNA Composite-Engineered Mesenchymal Stem Cells for Improved Skin-Wound Repair.

Small

August 2024

CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100190, China.

Article Synopsis
  • * Researchers developed DNA-based self-assembled composites that help MSCs stick to wounds, improve their survival, and promote faster healing.
  • * In animal studies, these engineered MSCs showed increased blood vessel formation and better wound closure, highlighting their potential as a new approach for treating skin damage.
View Article and Find Full Text PDF

Glioma induces atypical depression-like behaviors in mice through the 5-HT and glutamatergic synapse pathways.

Biochem Biophys Res Commun

April 2024

Department of Molecular Biology and Biochemistry, Medical Primate Research Center, Neuroscience Center, Institute of Basic Medical Sciences Chinese Academy of Medical Sciences, School of Basic Medicine Peking Union Medical College, Beijing, 100005, China; State Key Laboratory of Respiratory Health and Multimorbidity, Institute of Laboratory Animal Science, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100021, China. Electronic address:

Glioma patients often undertake psychiatric disorders such as depression and anxiety. There are several clinical epidemiological studies on glioma-associated depression, but basic research and corresponding animal experiments are still lacking. Here, we observed that glioma-bearing mice exhibited atypical depression-like behaviors in orthotopic glioma mouse models.

View Article and Find Full Text PDF

Angiotoxic effects of chlorinated polyfluorinated ether sulfonate, a novel perfluorooctane sulfonate substitute, in vivo and in vitro.

J Hazard Mater

May 2024

Department of Toxicology, School of Public Health, Hebei Medical University, Shijiazhuang 050017, PR China; Hebei Key Laboratory of Environment and Human Health, Shijiazhuang 050017, Hebei Province, PR China; The Key Laboratory of Neural and Vascular Biology, Ministry of Education, Shijiazhuang 050000, PR China. Electronic address:

Chlorinated polyfluorinated ether sulfonate (Cl-PFESA), a substitute for perfluorooctane sulfonate (PFOS), has been widely used in the Chinese electroplating industry under the trade name F-53B. The production and use of F-53B is keep increasing in recent years, consequently causing more emissions into the environment. Thus, there is a growing concern about the adverse effects of F-53B on human health.

View Article and Find Full Text PDF

Cellular senescence significantly affects the proliferative and differentiation capacities of mesenchymal stem cells (MSCs). Identifying key regulators of senescence and exploring potential intervention strategies, including drug-based approaches, are active areas of research. In this context, S-adenosyl-l-methionine (SAM), a critical intermediate in sulfur amino acid metabolism, emerges as a promising candidate for mitigating MSC senescence.

View Article and Find Full Text PDF

IL-6 from cerebrospinal fluid causes widespread pain via STAT3-mediated astrocytosis in chronic constriction injury of the infraorbital nerve.

J Neuroinflammation

February 2024

State Key Laboratory of Common Mechanism Research for Major Diseases, Department of Human Anatomy, Histology and Embryology, Neuroscience Center, Joint Laboratory of Anesthesia and Pain, Institute of Basic Medical Sciences Chinese Academy of Medical Sciences, School of Basic Medicine Peking Union Medical College, No. 5 DongDanSanTiao, Dongcheng District, Beijing, 100005, China.

Background: The spinal inflammatory signal often spreads to distant segments, accompanied by widespread pain symptom under neuropathological conditions. Multiple cytokines are released into the cerebrospinal fluid (CSF), potentially inducing the activation of an inflammatory cascade at remote segments through CSF flow. However, the detailed alteration of CSF in neuropathic pain and its specific role in widespread pain remain obscure.

View Article and Find Full Text PDF

Despite intense research on mice, the transcriptional regulation of neocortical neurogenesis remains limited in humans and non-human primates. Cortical development in rhesus macaque is known to recapitulate multiple facets of cortical development in humans, including the complex composition of neural stem cells and the thicker supragranular layer. To characterize temporal shifts in transcriptomic programming responsible for differentiation from stem cells to neurons, we sampled parietal lobes of rhesus macaque at E40, E50, E70, E80, and E90, spanning the full period of prenatal neurogenesis.

View Article and Find Full Text PDF

Comprehensive air pollution control policies may reduce pollutant emissions. However, the impact on disease morbidity of the change for the concentration of air pollutants following the policies has been insufficiently studied. We aim to assess the impact of comprehensive air pollution control policies on the levels of six criteria air pollutants and acute myocardial infarction (AMI) morbidity in Weifang, China.

View Article and Find Full Text PDF

Background: Nuclear receptor-binding SET domain 2 (NSD2) is a histone methyltransferase, that catalyzes dimethylation of lysine 36 of histone 3 (H3K36me2) and is associated with active transcription of a series of genes. NSD2 is overexpressed in multiple types of solid human tumors and has been proven to be related to unfavorable prognosis in several types of tumors.

Methods: We established a mouse model in which the NSD2 gene was conditionally knocked out in intestinal epithelial cells.

View Article and Find Full Text PDF

HBV integrations reshaping genomic structures promote hepatocellular carcinoma.

Gut

June 2024

Department of Hepatobiliary Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China

Article Synopsis
  • The study examines the role of Hepatitis B virus (HBV) integrations in causing liver cancer (hepatocellular carcinoma, or HCC) by exploring their genomic structures in 124 samples.
  • It identifies complex integration patterns and mechanisms that lead to various genetic changes associated with tumor development, with a focus on specific chromosome alterations.
  • The findings suggest that HBV integrations significantly influence genomic rearrangement, which is linked to factors like age and HBV DNA levels, enhancing understanding of how HBV contributes to cancer.
View Article and Find Full Text PDF

Tumor-associated macrophages (TAMs) are among the most abundant infiltrating leukocytes in the tumor microenvironment (TME). Reprogramming TAMs from protumor M2 to antitumor M1 phenotype is a promising strategy for remodeling the TME and promoting antitumor immunity; however, the development of an efficient strategy remains challenging. Here, a genetically modified bacterial biomimetic vesicle (BBV) with IFN-γ exposed on the surface in a nanoassembling membrane pore structure was constructed.

View Article and Find Full Text PDF