Publications by authors named "Penghao Xu"

Background: Gut microbiome disorders and intestinal barrier damage were found in peritonitis. However, the relationship between the gut microbiome and peritoneal dialysis-associated peritonitis (PDAP) remains unknown. This study aimed to investigate the role of the gut microbiome in PDAP and explore its correlation with intra-abdominal inflammation.

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Ribonucleoside monophosphates (rNMPs) are abundant in DNA, but their distribution and function in human nuclear genomes remain unknown. Here, we mapped nearly one million rNMPs per genome across diverse human cell types, defining a nuclear "" with non-random distribution patterns. rNMPs are enriched in C/G-rich sequences, epigenetically marked regions, and telomeres.

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Chronic kidney disease (CKD) represents a major global health challenge, frequently resulting in the development of chronic kidney disease-mineral and bone disorder (CKD-MBD). Transient receptor potential (TRP) channels, particularly the TRPV (vanilloid), TRPC (canonical), and TRPM (melastatin) subfamilies, are crucial in CKD-MBD by regulating calcium homeostasis, bone remodeling, and vascular calcification. Pharmacological agents targeting TRP channels and traditional Chinese medicine therapies demonstrate promising therapeutic potential for CKD-MBD.

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Double-strand breaks (DSBs) in DNA are challenging to repair. Cells employ at least three DSB-repair mechanisms, with a preference for non-homologous end joining (NHEJ) over homologous recombination (HR) and microhomology-mediated end joining (MMEJ). While most eukaryotic DNA is transcribed into RNA, providing complementary genetic information, much remains unknown about the direct impact of RNA on DSB-repair outcomes and its role in DSB-repair via end joining.

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Background: PM, a known public health risk, is increasingly linked to intestinal disorders, however, the mechanisms of its impact are not fully understood.

Purpose: This study aimed to explore the impact of chronic PM exposure on intestinal barrier integrity and to uncover the underlying molecular mechanisms.

Methods: C57BL/6 J mice were exposed to either concentrated ambient PM (CPM) or filtered air (FA) for six months to simulate urban pollution conditions.

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Motivation: Ribonucleoside monophosphates (rNMPs) are the most abundant non-standard nucleotides embedded in genomic DNA. If the presence of rNMP in DNA cannot be controlled, it can lead to genome instability. The actual regulatory functions of rNMPs in DNA remain mainly unknown.

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Damage to healthy bone following exposure to ionizing radiation has been well documented for at least seven decades. Among the reported effects are a transient increase in stiffness and a reduction in breaking strength. These changes have been linked to a decrease in osteoblast proliferation and differentiation, inducing cell cycle arrest, reducing collagen production, and increasing sensitivity to apoptotic agents.

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Article Synopsis
  • Double-strand breaks (DSBs) are harmful DNA damage events that can cause genome instability, prompting cells to use repair methods like non-homologous end joining (NHEJ), microhomology mediated end joining (MMEJ), and homology-directed recombination (HDR).
  • These repair processes can introduce DNA sequence variations, such as insertions and deletions, at the break site, necessitating accurate analysis through high throughput sequencing.
  • The study introduces a method for visualizing the complex patterns of sequence variations around DSBs, facilitating better comparison across different experimental conditions.
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Abundant ribonucleoside-triphosphate (rNTP) incorporation into DNA by DNA polymerases in the form of ribonucleoside monophosphates (rNMPs) is a widespread phenomenon in nature, resulting in DNA-structural change and genome instability. The rNMP distribution, characteristics, hotspots and association with DNA metabolic processes in human mitochondrial DNA (hmtDNA) remain mostly unknown. Here, we utilize the ribose-seq technique to capture embedded rNMPs in hmtDNA of six different cell types.

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Background: Ambient air pollution has been identified as a primary risk factor for mental disorders. In recent years, the relationship between exposure to ambient nitrogen dioxide (NO2) and the risk of hospital admissions (HAs) for schizophrenia has garnered increasing scientific interest, but evidence from epidemiological studies has been inconsistent. Therefore, a systematic review and meta-analysis were conducted to comprehensively identify potential correlations.

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Ethnopharmacological Relevance: Controversy persists regarding the treatment of immunoglobulin A nephropathy (IgAN), thereby highlighting the demand for safer more effective therapeutic drugs. Although supplementary treatment using Yi-Shen-Hua-Shi (YSHS) granules has distinct advantages with respect to improving renal function in IgAN, a lack of clarity regarding the underlying mechanisms limits their clinical application.

Aim Of The Study: In this study, we aimed to elucidate the therapeutic mechanisms underlying the efficacy of YSHS granules in the treatment of IgAN.

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Quetiapine combined with sodium valproate is an effective and more suitable drug treatment for Alzheimer's disease. At present, there are relatively few studies on the combined action mechanism of these two drugs. This study has certain practical value.

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The incorporation of ribonucleoside monophosphates (rNMPs) in genomic DNA is a frequent phenomenon in many species, often associated with genome instability and disease. The ribose-seq technique is one of a few techniques designed to capture and map rNMPs embedded in genomic DNA. The first step of ribose-seq is restriction enzyme (RE) fragmentation, which cuts the genome into smaller fragments for subsequent rNMP capture.

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Ribonucleoside triphosphate (rNTP) incorporation in DNA by DNA polymerases is a frequent phenomenon that results in DNA structural change and genome instability. However, it is unclear whether the rNTP incorporation into DNA follows any specific sequence patterns. We analyzed multiple datasets of ribonucleoside monophosphates (rNMPs) embedded in DNA, generated from three rNMP-sequencing techniques.

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Ribonucleoside monophosphates (rNMPs) represent the most common non-standard nucleotides found in the genome of cells. The distribution of rNMPs in DNA has been studied only in limited genomes. Using the ribose-seq protocol and the Ribose-Map bioinformatics toolkit, we reveal the distribution of rNMPs incorporated into the whole genome of a photosynthetic unicellular green alga, .

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Despite the abundance of ribonucleoside monophosphates (rNMPs) in DNA, sites of rNMP incorporation remain poorly characterized. Here, by using ribose-seq and Ribose-Map techniques, we built and analyzed high-throughput sequencing libraries of rNMPs derived from mitochondrial and nuclear DNA of budding and fission yeast. We reveal both common and unique features of rNMP sites among yeast species and strains, and between wild type and different ribonuclease H-mutant genotypes.

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Phosphorus (P) is essential for plant growth and development, and the vacuole is an important organelle for phosphate storage. However, the tonoplast phosphate transporter in fleshy fruits remains unknown. In this study, based on the strawberry (Fragaria × ananassa) fruit transcriptome data, a tonoplast-localized vacuolar phosphate transporter with SPX and major facilitator superfamily domains, FaVPT1, was identified.

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The inclusion behaviors of 4-Sulfonatocalix[n]arenes (SCXn) (n=4, 6, 8) with 1-(4-nitrophenyl)piperazine (NPP) were investigated by UV spectroscopy and fluorescence spectroscopy at different pH values (pH=3.05, 6.50, 8.

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