435 results match your criteria: "Shanghai Institute for Biological Sciences[Affiliation]"

Facial aging, cognitive impairment, and dementia risk.

Alzheimers Res Ther

November 2024

Department of Nutrition and Food Hygiene, Ministry of Education Key Laboratory of Public Health Safety, School of Public Health, Institute of Nutrition, Fudan University, 130 Dongan Road, Shanghai, 200030, China.

Background: Facial aging, cognitive impairment, and dementia are all age-related conditions. However, the temporal relation between facial age and future risk of dementia was not systematically examined.

Objectives: To investigate the relationship between facial age (both subjective/perceived and objective) and cognitive impairment and/or dementia risk.

View Article and Find Full Text PDF

Background: It has been established that there are functional changes in the brain of treatment-resistant depression (TRD) patients, but previous studies of functional connectivity (FC) usually involved selection of regions of interest based on accumulated a priori knowledge of the disorder. In this study, we combine amplitude of low-frequency fluctuation (ALFF) and FC; this approach, based on the abnormal ALFF, may provide some insights into the neural basis of the disease in terms of fMRI signals of low-frequency fluctuations.

Methods: A total of 16 TRD patients, who visited the Qingdao Mental Health Center, Shandong Province, China between March 2023 and January 2024, along with 16 normal subjects, were enrolled into this study for functional imaging.

View Article and Find Full Text PDF

An improved epigenetic counter to track mitotic age in normal and precancerous tissues.

Nat Commun

May 2024

CAS Key Laboratory of Computational Biology, CAS-MPG Partner Institute for Computational Biology, Shanghai Institute of Nutrition and Health, Shanghai Institute for Biological Sciences, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 320 Yue Yang Road, Shanghai, 200031, China.

The cumulative number of stem cell divisions in a tissue, known as mitotic age, is thought to be a major determinant of cancer-risk. Somatic mutational and DNA methylation (DNAm) clocks are promising tools to molecularly track mitotic age, yet their relationship is underexplored and their potential for cancer risk prediction in normal tissues remains to be demonstrated. Here we build and validate an improved pan-tissue DNAm counter of total mitotic age called stemTOC.

View Article and Find Full Text PDF

On epigenetic stochasticity, entropy and cancer risk.

Philos Trans R Soc Lond B Biol Sci

April 2024

CAS Key Laboratory of Computational Biology, Shanghai Institute of Nutrition and Health, Shanghai Institute for Biological Sciences, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 320 Yue Yang Road, Shanghai 200031, People's Republic of China.

Epigenetic changes are known to accrue in normal cells as a result of ageing and cumulative exposure to cancer risk factors. Increasing evidence points towards age-related epigenetic changes being acquired in a quasi-stochastic manner, and that they may play a causal role in cancer development. Here, I describe the quasi-stochastic nature of DNA methylation (DNAm) changes in ageing cells as well as in normal cells at risk of neoplastic transformation, discussing the implications of this stochasticity for developing cancer risk prediction strategies, and in particular, how it may require a conceptual paradigm shift in how we select cancer risk markers.

View Article and Find Full Text PDF

Tai Chi improves non-motor symptoms of Parkinson's disease: One-year randomized controlled study with the investigation of mechanisms.

Parkinsonism Relat Disord

March 2024

Department of Neurology and Institute of Neurology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, People's Republic of China; Lab for Translational Research of Neurodegenerative Diseases, Shanghai Institute for Advanced Immunochemical Studies (SIAIS), Shanghai Tech University, Shanghai, 201210, People's Republic of China. Electronic address:

Background: Tai Chi was found to improve motor symptoms in Parkinson's disease (PD). Whether long-term Tai Chi training could improve non-motor symptoms (NMS) and the related mechanisms were unknown.

Objective: To investigate Tai Chi's impact on non-motor symptoms in PD and related mechanisms.

View Article and Find Full Text PDF

The majority of disease-associated variants identified through genome-wide association studies are located outside of protein-coding regions. Prioritizing candidate regulatory variants and gene targets to identify potential biological mechanisms for further functional experiments can be challenging. To address this challenge, we developed FORGEdb ( https://forgedb.

View Article and Find Full Text PDF

Injury or stress can induce intracellular translocation and release of nuclear HMGB1, a DAMP molecule known to participate in inflammation and other pathological processes. Active release of HMGB1 from stimulated macrophages can be mediated by inflammasomes, which cleave Gasdermin D to form pores on cytoplasmic membranes. We previously had shown that active release of HMGB1 from autophagy deficient hepatocytes also depended on the inflammasome but how the inflammasome was activated was not known.

View Article and Find Full Text PDF

Introduction: Despite the benefit of adjuvant systemic therapy for patients with resected non-small cell lung cancer (NSCLC), the risk of postoperative recurrence remains high. Our objective was to characterize temporal genetic heterogeneity between primary resected and recurrent tumors, and its impact on treatment outcomes.

Methods: In this study, next-generation sequencing (NGS) testing was performed on tissue specimens and circulating tumor DNA (ctDNA) collected at postoperative recurrence, and results were compared to the genotypes of initial surgical specimens.

View Article and Find Full Text PDF

Diagnostic and economic value of carcinoembryonic antigen, carbohydrate antigen 19-9, and carbohydrate antigen 72-4 in gastrointestinal cancers.

World J Gastroenterol

January 2023

Department of Gastroenterology and Hepatology, Zhongshan Hospital, Fudan University, Shanghai 200032, China.

Article Synopsis
  • - The study re-evaluated the diagnostic and economic value of three tumor markers (CEA, CA19-9, CA72-4) for gastrointestinal cancers by analyzing data from 32,857 patients who underwent various tests between 2006 and 2018.
  • - Findings revealed that CEA was effective for colorectal cancer diagnostics, while CA72-4 performed poorly across all gastrointestinal cancers; combining biomarkers did not significantly enhance diagnostic accuracy.
  • - Economically, CEA outperformed the others, particularly benefiting older adults (65+ years) during health checkups, indicating it should be prioritized over CA19-9 and CA72-4 in screening strategies.
View Article and Find Full Text PDF

Background: The association between inflammation and major depressive disorder (MDD) remains poorly understood, given the heterogeneity of patients with MDD.

Aims: We investigated inflammatory markers, such as interleukin (IL)-6, high-sensitivity C reactive protein (hsCRP) and tumour necrosis factor-α (TNF-α) in melancholic, atypical and anxious depression and explored whether baseline inflammatory protein levels could indicate prognosis.

Methods: The sample consisted of participants (aged 18-55 years) from a previously reported multicentre randomised controlled trial with a parallel-group design registered with ClinicalTrials.

View Article and Find Full Text PDF

Common variants associated with AKAP11 expression confer risk of bipolar disorder.

Asian J Psychiatr

November 2022

Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences and Yunnan Province, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan, China. Electronic address:

View Article and Find Full Text PDF

A broadly neutralizing human monoclonal antibody against the hemagglutinin of avian influenza virus H7N9.

Chin Med J (Engl)

April 2022

Department for Vaccine Clinical Evaluation, NHC Key Laboratory of Enteric Pathogenic Microbiology, Jlangsu Provincial Center for Diseases Control and Prevention, Nanjing, Jiangsu 210009, China.

Background: The new emerging avian influenza A H7N9 virus, causing severe human infection with a mortality rate of around 41%. This study aims to provide a novel treatment option for the prevention and control of H7N9.

Methods: H7 hemagglutinin (HA)-specific B cells were isolated from peripheral blood plasma cells of the patients previously infected by H7N9 in Jiangsu Province, China.

View Article and Find Full Text PDF

Background: Tai Chi has been shown to improve motor symptoms in Parkinson's disease (PD), but its long-term effects and the related mechanisms remain to be elucidated. In this study, we investigated the effects of long-term Tai Chi training on motor symptoms in PD and the underlying mechanisms.

Methods: Ninety-five early-stage PD patients were enrolled and randomly divided into Tai Chi (n = 32), brisk walking (n = 31) and no-exercise (n = 32) groups.

View Article and Find Full Text PDF

Background: Genome-wide association study (GWAS) single nucleotide polymorphisms (SNPs) are known to preferentially co-locate to active regulatory elements in tissues and cell types relevant to disease aetiology. Further characterisation of associated cell type-specific regulation can broaden our understanding of how GWAS signals may contribute to disease risk.

Results: To gain insight into potential functional mechanisms underlying GWAS associations, we developed FORGE2 ( https://forge2.

View Article and Find Full Text PDF

The CTNNBIP1-CLSTN1 fusion transcript regulates human neocortical development.

Cell Rep

June 2021

School of Life Science and Technology, ShanghaiTech University, Shanghai 201210, China. Electronic address:

Fusion transcripts or RNAs have been found in both disordered and healthy human tissues and cells; however, their physiological functions in the brain development remain unknown. In the analysis of deposited RNA-sequence libraries covering early to middle embryonic stages, we identify 1,055 fusion transcripts present in the developing neocortex. Interestingly, 98 fusion transcripts exhibit distinct expression patterns in various neural progenitors (NPs) or neurons.

View Article and Find Full Text PDF

Neointima hyperplasia is a crucial component of restenosis after coronary angioplasty. We have hypothesized that enhanced generation of platelet-derived thromboxane (TX)A in response to vascular damage plays a critical role in neointimal hyperplasia and that antiplatelet agents may mitigate it. In cocultures of human platelets and coronary artery smooth muscle cells (CASMC), we found that platelets induced morphologic changes and enhanced the migration of CASMC.

View Article and Find Full Text PDF

A cell-type deconvolution meta-analysis of whole blood EWAS reveals lineage-specific smoking-associated DNA methylation changes.

Nat Commun

September 2020

CAS Key Laboratory of Computational Biology, CAS-MPG Partner Institute for Computational Biology, Shanghai Institute of Nutrition and Health, Shanghai Institute for Biological Sciences, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 320 Yue Yang Road, Shanghai, 200031, China.

Highly reproducible smoking-associated DNA methylation changes in whole blood have been reported by many Epigenome-Wide-Association Studies (EWAS). These epigenetic alterations could have important implications for understanding and predicting the risk of smoking-related diseases. To this end, it is important to establish if these DNA methylation changes happen in all blood cell subtypes or if they are cell-type specific.

View Article and Find Full Text PDF

Contrasting Responses of Plastid Terminal Oxidase Activity Under Salt Stress in Two C Species With Different Salt Tolerance.

Front Plant Sci

July 2020

National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Shanghai Institute for Biological Sciences, Chinese Academy of Sciences, Shanghai, China.

The present study reveals contrasting responses of photosynthesis to salt stress in two C species: a glycophyte () and a halophyte (). Specifically, the effect of short-term salt stress treatment on the photosynthetic CO uptake and electron transport were investigated in and its salt-tolerant close relative . In this experiment, at the beginning, plants were grown in soil then were exposed to salt stress under hydroponic conditions for two weeks.

View Article and Find Full Text PDF

Although the Sheehan Disability Scale (SDS) is one of the most extensively used and tested disability measurements, there has only been one psychometric evaluation of its properties in a Chinese-speaking population. Here, we provide a comprehensive psychometric assessment of the scale in 465 Mandarin-speakers who were accessing information online regarding psychotherapy. Principal component analysis and subsequent confirmatory factor analysis indicated that the SDS is one-dimensional (normed fit index = 0.

View Article and Find Full Text PDF

A comparison of epigenetic mitotic-like clocks for cancer risk prediction.

Genome Med

June 2020

CAS Key Laboratory of Computational Biology, CAS-MPG Partner Institute for Computational Biology, Shanghai Institute of Nutrition and Health, Shanghai Institute for Biological Sciences, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 320 Yue Yang Road, Shanghai, 200031, China.

Background: DNA methylation changes that accrue in the stem cell pool of an adult tissue in line with the cumulative number of cell divisions may contribute to the observed variation in cancer risk among tissues and individuals. Thus, the construction of epigenetic "mitotic" clocks that can measure the lifetime number of stem cell divisions is of paramount interest.

Methods: Building upon a dynamic model of DNA methylation gain in unmethylated CpG-rich regions, we here derive a novel mitotic clock ("epiTOC2") that can directly estimate the cumulative number of stem cell divisions in a tissue.

View Article and Find Full Text PDF

Genome recovery and metatranscriptomic confirmation of functional acetate-oxidizing bacteria from enriched anaerobic biogas digesters.

Environ Pollut

October 2020

CAS-Key Laboratory of Synthetic Biology, CAS Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Shanghai Institute for Biological Sciences, Chinese Academy of Sciences, Shanghai, 200032, China. Electronic address:

In many cases, it is difficult to isolate the key microbial organisms from their communities present in natural environments. Metagenomic methods can recover near-complete genomes of the dominant microbial organisms in communities, and metatrancriptomic data could further reveal important genes and pathways related to their functions. In this study, three draft genomes of Clostridium ultunense-like bacteria were recovered based on metagenomic analyses, which is an essential syntrophic acetate-oxidizing bacteria (SAOB) member for maintaining high methane production in high-ammonium biogas digesters but difficult to isolate from its syntrophic partners.

View Article and Find Full Text PDF

Tumor Necrosis Factor Receptor Associated Factor 3 Modulates Cartilage Degradation through Suppression of Interleukin 17 Signaling.

Am J Pathol

August 2020

Department of Orthopedic Surgery, Xin Hua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China; The Key Laboratory of Stem Cell Biology, Shanghai Institute for Biological Sciences, Chinese Academy of Sciences, Shanghai, China. Electronic address:

Interleukin 17A (IL-17A) is critical in the pathogenesis of autoimmune diseases through driving inflammatory cascades. However, the role of IL-17 in osteoarthritis (OA) is not well understood. Tumor necrosis factor-receptor-associated factor 3 (TRAF3) is a receptor proximal negative regulator of IL-17 signaling.

View Article and Find Full Text PDF

DNA methylation markers in the diagnosis and prognosis of common leukemias.

Signal Transduct Target Ther

January 2020

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

The ability to identify a specific type of leukemia using minimally invasive biopsies holds great promise to improve the diagnosis, treatment selection, and prognosis prediction of patients. Using genome-wide methylation profiling and machine learning methods, we investigated the utility of CpG methylation status to differentiate blood from patients with acute lymphocytic leukemia (ALL) or acute myelogenous leukemia (AML) from normal blood. We established a CpG methylation panel that can distinguish ALL and AML blood from normal blood as well as ALL blood from AML blood with high sensitivity and specificity.

View Article and Find Full Text PDF

An excessive amount of adipose tissue surrounding the blood vessels (perivascular adipose tissue, also known as PVAT) is associated with a high risk of cardiovascular disease. ADSCs derived from different adipose tissues show distinct features, and those from the PVAT have not been well characterized. In a recent study, we reported that some ADSCs in the periaortic arch adipose tissue (PAAT) descend from the neural crest cells (NCCs), a transient population of migratory cells originating from the ectoderm.

View Article and Find Full Text PDF