Publications by authors named "Yapeng Han"

Collagenolytic proteases are widely used in the food, medical, pharmaceutical, cosmetic, and textile industries. Mesophilic collagenases exhibit collagenolytic activity under physiological conditions, but have limitations in efficiently degrading collagen-rich wastes, such as collagen from fish scales, at high temperatures due to their poor thermostability. Bacterial collagenolytic proteases are members of various proteinase families, including the bacterial collagenolytic metalloproteinase M9 and the bacterial collagenolytic serine proteinase families S1, S8, and S53.

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The presence of perfluoroalkyl and polyfluoroalkyl substances (PFAS) in various everyday products has raised concerns about their potential impact on prostate health. This study aimed to investigate the effects of different types of PFAS on prostate health, including PFDeA, PFOA, PFOS, PFHxS, and PFNA. To assess the relationship between PFAS exposure and prostate injury, machine learning algorithms were employed to analyze prostate-specific antigen (PSA) metrics.

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Arsenic, as a metalloid, has the ability to move and transform in different environmental media. Its widespread contamination has become a significant environmental problem and public concern. Arsenic can jeopardize multiple organs through various pathways, influenced by environmental bioprocesses.

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Inorganic trivalent arsenic (iAs) at environmentally relevant levels has been found to cause developmental toxicity. Maternal exposure to iAs leads to enduring hepatic lipid deposition in later adult life. However, the exact mechanism in iAs induced hepatic developmental hazards is still unclear.

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Silver nanoparticles (AgNPs), revered for their antimicrobial prowess, have become ubiquitous in a range of products, from biomedical equipment to food packaging. However, amidst their rising popularity, concerns loom over their possible detrimental effects on fetal development and subsequent adult life. This review delves into the developmental toxicity of AgNPs across diverse models, from aquatic species like zebrafish and catfish to mammalian rodents and embryonic stem cells.

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Article Synopsis
  • The study aimed to assess the prevalence of hepatitis C virus (HCV) among blood donors in Qingyang City to mitigate transmission risks.
  • It found a 3.2‰ positive rate of HCV among donors from 2015 to 2020, with the most common co-infection being with treponema pallidum, and had a higher prevalence in males and married individuals.
  • The research highlighted a need for better HCV awareness among young blood donors, who scored a 67.2% knowledge rate about the virus.
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Histone modifications, such as methylation and demethylation, have crucial roles in regulating chromatin structure and gene expression. Lysine-specific histone demethylases (LSDs) belong to the amine oxidase family, which is an important family of histone lysine demethylases (KDMs), and functions in maintaining homeostasis of histone methylation. Here, we identified six () genes from the important leguminous soybean.

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Planarians are widely used as water quality indicator species to provide early warning of harmful pollution in aquatic ecosystems. However, the impact of microplastics on freshwater planarians remains poorly investigated. Here we simulated waterborne microplastic exposure in the natural environments to examine the effect on the antioxidant defense system and microbiota in Dugesia japonica.

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Soybean, a typical short-day crop, is sensitive to photoperiod, which is a major limiting factor defining its north-to-south cultivation range. The long-juvenile (LJ) trait is controlled primarily by the J locus which has been used for decades by soybean breeders to delay flowering and improve grain yield in tropical regions. The J gene encodes an ortholog of the Arabidopsis Evening Complex (EC) component EARLY FLOWERING 3 (ELF3).

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Meiotic recombination contributes to the maintenance of the association between homologous chromosomes (homologs) and ensures the accurate segregation of homologs during anaphase I, thus facilitating the redistribution of alleles among progeny. Meiotic recombination is initiated by the programmed formation of DNA double strand breaks, the repair of which requires DNA synthesis, but the role of DNA synthesis proteins during meiosis is largely unknown. Here, we hypothesized that the lagging strand-specific DNA Polymerase δ (POL δ) might be required for meiotic recombination, based on a previous analysis of DNA Replication Factor1 that suggested a role for lagging strand synthesis in meiotic recombination.

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Objective: To study and analyse the application of ELISA and nucleic acid test (NAT) to HBV detection of voluntary blood donors in Qingyang city and the characteristics and social attributes of HBV positive population.

Methods: The HBV of 70 659 blood donors in Qingyang city from January 2013 to December 2016 was detected by using ELISA and NAT, and the statistical analysis of results was performed by means of X detection and FIsher' s Exact test.

Results: The HBV positive rate detected by ELISA was 0.

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Histone modifications, such as methylation and demethylation, play an important role in regulating chromatin structure and gene expression. The JmjC domain-containing proteins, an important family of histone lysine demethylases (KDMs), play a key role in maintaining homeostasis of histone methylation . In this study, we performed a comprehensive analysis of the () gene family in the soybean genome and identified 48 genes () distributed unevenly across 18 chromosomes.

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Roots of leguminous plants perceive Nod factor signals, and then root hair deformation responses such as swelling and curling are activated. However, very little is known about the molecular mechanisms of such root hair deformation. We have previously shown that LjROP6, a member of the Rho family of small GTPases, was identified as an NFR5 (Nod Factor Receptor 5)-interacting protein and participated in symbiotic nodulation in Lotus japonicus.

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Article Synopsis
  • Amino acid transporters (AATs) are crucial for transporting amino acids in plants and are vital for their growth and development.
  • In this study, researchers identified and classified 189 AAT genes in soybeans into 12 subfamilies, examining their structures, distribution, and duplication patterns.
  • The findings showed significant gene duplication in AAT genes, with interesting tissue-specific expression patterns, laying the groundwork for further research on their functions in soybeans and other crops.
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  • The study aimed to examine how methyl nonyl ketone, found in the volatile oil from Houttuynia cordata, distributes in tissues of mice to aid in clinical trials.
  • Using a GC method, researchers measured the concentrations of the volatile oil in various biological samples after a single high dose.
  • Findings indicated that the oil concentrated mainly in the windpipe, intestine, liver, and kidney, with levels dropping over 90% in all tissues within 7 hours.
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