1,866 results match your criteria: "Center for Precision Medicine[Affiliation]"

Introduction: Hidradenitis suppurativa (HS) is a prevalent and persistent inflammatory skin disorder, lacking a known cure or effective biomarkers for early diagnosis at present. The genetic determinants of HS have not been fully documented, but it is believed to result from a combination of genetic and environmental factors.

Methods: To identify relevant HS gene variants in sporadic HS patients, this study utilized longitudinal electronic health records (EHRs) and whole-exome sequencing.

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Mechanisms of Chemical Atrial Defibrillation by Flecainide and Ibutilide.

JACC Clin Electrophysiol

December 2024

Department of Physiology and Membrane Biology, Center for Precision Medicine and Data Science, School of Medicine, University of California-Davis, Davis, California, USA. Electronic address:

Background: Effective and safe pharmacological approaches for atrial defibrillation offer several potential advantages over techniques like ablation. Pharmacological therapy is noninvasive, involving no risk associated with the procedure or resulting complications. Moreover, acute drug intervention with existing drugs is likely to be low cost and broadly accessible, thereby addressing a central tenet of health equity.

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Article Synopsis
  • Mitochondria are essential for brain health, influencing energy production, inflammation, and hormone synthesis, and their dysfunction is connected to neurodegenerative diseases like Alzheimer's and Parkinson's.
  • Research on aging baboons revealed a decline in the activity of mitochondrial electron transport chain (ETC) complexes in the prefrontal cortex, mainly tied to alterations in individual complex functions rather than overall mitochondrial numbers.
  • Female baboons maintained mitochondrial function better with age compared to males, who exhibited significant ETC activity loss and had correlations between walking speed and respiration linked to higher ETC complexes, pointing to possible reasons behind sex differences in brain resilience as they age.
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Although early prostate cancer depends on the androgen receptor signaling pathway, which is predominant in luminal cells, there is much to be understood about the contribution of epithelial basal cells in cancer progression. Herein, we observe cell type-specific differences in the importance of the metabolic enzyme phosphatidylinositol 5-phosphate 4-kinase alpha (PI5P4Kα; gene name PIP4K2A) in the prostate epithelium. We report the development of a basal cell-specific genetically engineered mouse model targeting Pip4k2a alone or in combination with the tumor suppressor phosphatase and tensin homolog (Pten).

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HBx-induced upregulation of MAP1S drives hepatocellular carcinoma proliferation and migration via MAP1S/Smad/TGF-β1 loop.

Int J Biol Macromol

November 2024

Beijing Institute of Hepatology, Beijing You An Hospital, Capital Medical University, Beijing 100069, China; Beijing Engineering Research Center for Precision Medicine and Transformation of Hepatitis and Liver Cancer, Beijing You An Hospital, Capital Medical University, Beijing 100069, China. Electronic address:

Article Synopsis
  • Hepatitis B virus (HBV) significantly increases the risk of hepatocellular carcinoma (HCC) recurrence, but the precise mechanisms behind this remain unclear.
  • A study found that the microtubule-associated protein 1S (MAP1S) is upregulated in metastatic HCC due to the action of HBV-encoded X protein (HBx), which in turn promotes tumor growth and survival.
  • Analysis of 150 HCC patients showed that higher MAP1S levels and lower levels of histone deacetylase 6 (HDAC6) correlated with shorter relapse-free survival, indicating a feedback loop involving MAP1S, Smad, and TGF-β1 that drives HBV-related HCC proliferation and
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DNA-based population screening for adult-onset diseases holds promise for advancing personalized medicine and improving public health. Yet as most individuals pursuing such screening receive negative results, the return of results process must ensure that negative results and their implications are clearly understood. We explored the experiences of adults who received negative results from such screening as part of the Electronic Medical Records and Genomics consortium Phase 3 project (eMERGE-3) at Columbia University.

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Testicular histology based on testicular biopsy is an important factor for determining appropriate testicular sperm extraction surgery and predicting sperm retrieval outcomes in patients with azoospermia. Therefore, we developed a deep learning (DL) model to establish the associations between testicular grayscale ultrasound images and testicular histology. We retrospectively included two-dimensional testicular grayscale ultrasound from patients with azoospermia (353 men with 4357 images between July 2017 and December 2021 in The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China) to develop a DL model.

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Serum cytokines and inflammatory proteins in individuals with heroin use disorder: potential mechanistically based biomarkers for diagnosis.

Transl Psychiatry

October 2024

Neuropsychoimaging of Addictions and Related Conditions Research Program (NARC), Icahn School of Medicine at Mount Sinai, Departments of Psychiatry and Neuroscience, New York, NY, USA.

Opioid use disorders cause major morbidity and mortality, and there is a pressing need for novel mechanistic targets and biomarkers for diagnosis and prognosis. Exposure to mu-opioid receptor (MOR) agonists causes changes in cytokine and inflammatory protein networks in peripheral blood, and also in brain glia and neurons. Individuals with heroin use disorder (iHUD) show dysregulated levels of several cytokines in the blood.

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A retinal biomarker of biological age based on composite clinical phenotypic information.

Lancet Healthy Longev

October 2024

State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Vision Science, Guangdong Provincial Clinical Research Center for Ocular Diseases, Guangzhou, China; Center for Precision Medicine and Department of Genetics and Biomedical Informatics, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China; Hainan Eye Hospital and Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Haikou, China. Electronic address:

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Detection and analysis of complex structural variation in human genomes across populations and in brains of donors with psychiatric disorders.

Cell

November 2024

Department of Psychiatry and Behavioral Sciences, Stanford University, Stanford, CA 94305, USA; Department of Genetics, Stanford University, Stanford, CA 94305, USA; Maternal and Child Health Research Institute, Stanford University School of Medicine, Stanford, CA 94305, USA. Electronic address:

Article Synopsis
  • Complex structural variations (cxSVs) are often missed in genome studies due to difficulties in detection, but ARC-SV provides a machine-learning method to accurately identify and reconstruct them from standard genetic datasets.
  • * Our research identified cxSVs as key contributors to human genetic diversity, showing that rare cxSVs frequently occur in genes related to neural functions and rapid human evolution.
  • * Through advanced analysis of brain tissue, we found cxSVs are linked to gene expression changes and are associated with psychiatric disorders, suggesting they play a significant role in the development of neuropsychiatric conditions.
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Correction: Epigenetic regulation of DNA repair gene program by Hippo/YAP1-TET1 axis mediates sorafenib resistance in HCC.

Cell Mol Life Sci

September 2024

State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Signaling Network, School of Life Sciences, Xiamen University, Xiamen, 361100, Fujian, China.

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Facilitating integrative and personalized oncology omics analysis with UCSCXenaShiny.

Commun Biol

September 2024

State Key Laboratory of Oncology in South China, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou, PR China.

The continuous generation of multi-omics and phenotype data is propelling advancements in precision oncology. UCSCXenaShiny was developed as an interactive tool for exploring thousands of cancer datasets available on UCSC Xena. However, its capacity for comprehensive and personalized pan-cancer data analysis is being challenged by the growing demands.

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  • A study was conducted on renal transplant recipients to understand how voriconazole affects tacrolimus levels, as there was no existing model for this interaction.
  • The research involved 19 patients and used population pharmacokinetic analysis with blood samples to create a model showing how different factors, especially voriconazole levels and kidney function, affect tacrolimus dosing.
  • The results indicated that tacrolimus dosage can be optimized based on voriconazole concentration and serum creatinine, with voriconazole having a stronger impact on tacrolimus levels.
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  • The study aimed to explore the link between tumor lysis syndrome (TLS) and drugs used for treating malignant melanoma (MM) through reports from the FDA Adverse Event Reporting System between 2004 and 2023.
  • Findings revealed that the combination of encorafenib and binimetinib had the highest incidence of TLS, with a median latency of just 2 days, compared to other drugs that showed longer latencies.
  • The majority of TLS cases were reported in females aged 25-65, and the results indicate a need for further research to understand the mechanisms and factors that contribute to TLS with encorafenib and binimetinib to ensure safe prescribing.
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  • - This study developed a VEGFR-targeting peptide-drug conjugate, QR-KLU, to reduce tumor size and suppress blood vessel formation in liver cancer (HCC) while also assessing the effectiveness of anti-PD-1 antibodies in treatment.
  • - QR-KLU effectively inhibited the growth and spread of liver cancer cells in tests and, when used with anti-PD-1 antibodies in mice, significantly reduced tumor size, caused tumor cell death, and improved survival rates.
  • - The combination of QR-KLU and anti-PD-1 antibodies enhanced the immune response by increasing the presence of CD8 T cells in tumors and shifting the balance towards a more favorable immune environment, suggesting a potential new strategy for HCC therapy
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D-bifunctional protein (DBP) deficiency, a fatal peroxisomal enzyme disorder, typically manifests with life-threatening symptoms in the first two years of childhood. We present the case of an infant with elevated lysophosphatidylcholine C26:0 (C26:0-LPC) levels identified during X-linked adrenoleukodystrophy (ALD) screening, leading to a diagnosis of DBP deficiency due to a homozygous c.1041T>A, p.

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Article Synopsis
  • Anti-CGRP monoclonal antibodies are being studied for their effectiveness in treating chronic migraines, with genetic factors potentially influencing individual responses to treatment.
  • A QTL association study in Taiwanese chronic migraine patients found six significant genetic variants linked to the effectiveness of therapies like fremanezumab and galcanezumab.
  • The most notable variant, rs116870564, is connected to the LRRC4C gene, affecting gene expression through processes like splicing regulation and transcription factor interactions, thus enhancing personalized treatment strategies for migraines.
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PerturbDB for unraveling gene functions and regulatory networks.

Nucleic Acids Res

January 2025

Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Guangdong-Hong Kong Joint Laboratory for RNA Medicine, Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, 107 Yan Jiang West Road, Guangzhou, Guangdong, 510120, China.

Article Synopsis
  • Perturb-Seq combines CRISPR technology and single-cell RNA sequencing to analyze gene functions through high-content phenotypic screens, producing extensive datasets.
  • PerturbDB was developed as a user-friendly platform that hosts 66 Perturb-Seq datasets, providing access to over 4.5 million single-cell transcriptomes and facilitating gene function exploration.
  • The platform features an interactive web interface for visualizing and analyzing data, includes a specialized 'Cancer' module for studying genes in cancer contexts, and identifies potential drug inhibitors based on gene perturbations.
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VSIG4 induces the immunosuppressive microenvironment by promoting the infiltration of M2 macrophage and Tregs in clear cell renal cell carcinoma.

Int Immunopharmacol

December 2024

Key laboratory of Cellular Physiology, Shanxi Medical University, Ministry of Education, Taiyuan 030000, Shanxi, China; Department of Pharmacology, Shanxi Medical University, Taiyuan 030000, Shanxi, China; Higher Education Key Laboratory of Tumor Immunology & Targeted Drug Development in Shanxi Province, Shanxi Medical University, Taiyuan 030000, Shanxi, China. Electronic address:

Clear cell renal cell carcinoma (ccRCC) is the most common subtype of renal cell carcinoma and has a poor prognosis. Despite the impressive advancements in treating ccRCC using immune checkpoint (IC) blockade, such as PD-1/PD-L1 inhibitors, a considerable number of ccRCC patients experience adaptive resistance. Therefore, exploring new targetable ICs will provide additional treatment options for ccRCC patients.

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Predictive etiological classification of acute ischemic stroke through interpretable machine learning algorithms: a multicenter, prospective cohort study.

BMC Med Res Methodol

September 2024

Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, No.119 South 4th Ring West Road, Fengtai District, Beijing, 100070, China.

Background: The prognosis, recurrence rates, and secondary prevention strategies varied significantly among different subtypes of acute ischemic stroke (AIS). Machine learning (ML) techniques can uncover intricate, non-linear relationships within medical data, enabling the identification of factors associated with etiological classification. However, there is currently a lack of research utilizing ML algorithms for predicting AIS etiology.

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Large-scale genome-wide association studies of schizophrenia have uncovered hundreds of associated loci but with extremely limited representation of African diaspora populations. We surveyed electronic health records of 200,000 individuals of African ancestry in the Million Veteran and All of Us Research Programs, and, coupled with genotype-level data from four case-control studies, realized a combined sample size of 13,012 affected and 54,266 unaffected persons. Three genome-wide significant signals - near , , and - are the first to be independently identified in populations of predominantly African ancestry.

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AZD1775 synergizes with SLC7A11 inhibition to promote ferroptosis.

Sci China Life Sci

January 2025

Fudan University Shanghai Cancer Center and Institutes of Biomedical Sciences, Fudan University, Shanghai, 200032, China.

Article Synopsis
  • The study investigates how the tumor suppressor p53 affects the effectiveness of the WEE1 inhibitor AZD1775 in promoting ferroptosis, a type of cell death, in lung cancer cells.
  • AZD1775 inhibits cystine uptake, which is crucial for ferroptosis, and leads to increased expression of SLC7A11, a resistance factor, by altering histone modifications via the WEE1-SETDB1 pathway.
  • Combining AZD1775 with the nucleolar stress inducer Actinomycin D enhances the ability to induce ferroptosis and suppress lung cancer growth, particularly in cells with functional p53.
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Insights into oral lentinan immunomodulation: Dectin-1-mediated lymphatic transport from Peyer's patch M cells to mononuclear phagocytes.

Carbohydr Polym

December 2024

Department of Pharmacy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 430030 Wuhan, China; Hubei Province Clinical Research Center for Precision Medicine for Critical Illness, 430030 Wuhan, PR China. Electronic address:

Lentinan (LNT), a natural polysaccharide, has been reported to exhibit immunomodulatory effects in the intestine after oral administration. Herein, we aimed to investigate the lymphatic transport of LNT in Peyer's patches (PPs) by traceable fluorescent labeling and to explore whether/how LNT contacts related immune cells. Near-infrared imaging confirmed the absorption of LNT in the small intestinal segment and its accumulation within PPs after oral administration.

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  • Accurate detection of organophosphate pesticides (OPs) is essential for food safety, and the study utilizes dendritic mesoporous silica spheres to enhance the fluorescent properties of gold nanoclusters (AuNCs).
  • A new fluorescent method for detecting OPs was developed, based on the interaction of copper (Cu) and thiocholine, which affects fluorescence levels in the presence of OPs like paraoxon.
  • The study offers a portable testing solution using a smartphone-compatible device, enabling on-site monitoring of paraoxon with an impressive limit of detection, emphasizing the potential for more efficient food analysis.
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Background: Nonadherence to imatinib is common in patients with gastrointestinal stromal tumor (GIST), which is associated with poor prognosis and financial burden. The primary aim of this study was to investigate the adherence rate in patients with GIST and subsequently develop a model based on machine learning (ML) and deep learning (DL) techniques to identify the associated factors and predict the risk of imatinib nonadherence.

Methods: All eligible patients completed four sections of questionnaires.

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