Publications by authors named "Jingzheng Li"

Heat stress (HS) disrupts intestinal microbiota, glycolipid metabolism, and hepatic mitochondrial function in late gestational mice. Baicalin (BAI), a Chinese herbal medicine known for its heat-clearing and anti-inflammatory properties, has shown promise in modulating intestinal microecology and mitigating inflammation in various organs. This study investigates whether baicalin attenuates HS-induced intestinal microbial dysbiosis and liver damage in pregnant mice during late gestation.

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RPA is a master regulator of DNA metabolism and RPA availability acts as a rate-limiting factor. While numerous studies focused on the post-translational regulations of RPA for its functions, little is known regarding how RPA availability is controlled. Here we identify a novel lncRNA Discn as the guardian of RPA availability in stem cells.

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Background: Polarized kupffer cells (KCs) influence the immune response after liver transplantation. We report an undiscovered immune regulatory role of X-box binding protein 1 (XBP1) on immune function of kupffer cells (KCs).

Methods: Acute rejection model using rats.

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Article Synopsis
  • Endogenous DNA double-strand breaks (DSBs) in neural stem/progenitor cells (NSPCs) are crucial for neurogenesis and can lead to neurodevelopmental disorders.
  • A specific regulator called Filia is identified, which is mainly active in hippocampal NSPCs and helps in both preventing DSB formation and repairing them.
  • Mice lacking Filia show reduced NSPC proliferation and neurogenesis, resulting in issues with learning, memory, and mood, highlighting the importance of region-specific regulation of DSBs in NSPCs.
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Background: Schizophrenia is a complex mental disorder resulting in poor life quality and high social and economic burden. Despite the fact that genome-wide association studies (GWASs) have successfully identified a number of risk loci for schizophrenia, identifying the causal genes at the risk loci and elucidating their roles in disease pathogenesis remain major challenges.

Methods: The summary data-based Mendelian randomization analysis (SMR) was used to integrate a large-scale GWAS of schizophrenia with brain expression quantitative trait loci (eQTL) data and brain methylation expression quantitative trait loci (meQTL) data, to identify novel risk gene(s) for schizophrenia.

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Article Synopsis
  • * Researchers identified a gene called OOEP as a crucial player in the homologous recombination (HR) DNA repair mechanism specifically in mouse oocytes, which is essential for repairing DSBs.
  • * OOEP influences the effectiveness of DNA repair by activating the ATM kinase and allowing the accumulation of Rad51 at DSB sites, and its reduced expression with maternal age may contribute to declining oocyte quality.
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Pluripotent stem cells (PSCs) harbor constitutive DNA replication stress during their rapid proliferation and the consequent genome instability hampers their applications in regenerative medicine. It is therefore important to understand the regulatory mechanisms of replication stress response in PSCs. Here, we report that mouse embryonic stem cells (ESCs) are superior to differentiated cells in resolving replication stress.

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