Publications by authors named "Zuyi Chen"

Background: Human papillomavirus (HPV) infection is a key factor in the development of cervical cancer and HPV genotyping is crucial for screening. There are significant differences in the pathogenic potential of the various HPV types. Currently, clinical data on HPV82 are scarce, and the relationship between its viral load, pathogenicity, and persistence is unknown.

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  • HPV73 is a type of human papillomavirus linked to cervical cancer, but it has a low infection rate of approximately 0.14% among tested women.
  • In a study of 214 cases with HPV73 single infections, most patients had normal cervical cells or low-grade lesions, with a small percentage progressing to higher-grade issues or cervical cancer.
  • High viral load was found to be significantly associated with persistent infections and greater pathogenic potential, indicating it is an important factor in the development of cervical cancer from HPV73.
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  • HPV is the leading cause of cervical cancer, with HPV26 being one type that has not been well-studied; this research focuses on the clinical characteristics of patients with HPV26 single infections.
  • In a large patient sample, HPV26 was found in 0.09% of women, with most having no lesions, though some displayed varying stages of cervical intraepithelial neoplasia (CIN).
  • Higher viral loads were linked to persistent infections and the development of CIN lesions, highlighting the importance of including HPV26 in screening programs.*
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This study aims to develop and validate a machine learning (ML) predictive model for assessing mortality in patients with malignant tumors and hyperkalemia (MTH). We extracted data on patients with MTH from the Medical Information Mart for Intensive Care-IV, version 2.2 (MIMIC-IV v2.

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Human papillomavirus (HPV) type 81 has recently become one of the most common low-risk HPV types; however, literature focusing on it is limited. This study aimed to analyze the reasons for the increased detection rate of HPV81 and investigate its evolving pathogenicity. We analyzed the detection rates and trends of HPV81 in 229 061 exfoliated cervical cell samples collected from 2014 to 2023; collected samples of HPV81 single infections from two different time periods; and analyzed the allele frequencies, positive selection, viral load, persistent infection capacity, and pathogenicity of E6 and E7 genotypes.

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The applications of antisense oligonucleotides (ASOs) in rare or common diseases treatment have garnered great attention in recent years. Nevertheless, challenges associated with stability and bioavailability still persist, hampering the efficiency of ASOs. This work presents an ASO prodrug with parallel G-quadruplex assembly and lysosome escape capabilities for oncotherapy.

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Aptamers have shown significant potential in treating diverse diseases. However, challenges such as stability and drug delivery limited their clinical application. In this paper, the development of AS1411 prodrug-type aptamers for tumor treatment was introduced.

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Antisense oligonucleotides (ASONs)-based therapeutics offers tremendous promise for the treatment of diverse diseases. However, there is still a need to develop ASONs with enhanced stability against enzymes, improved drug delivery, and enhanced biological potency. In this study, we propose a novel anisamide (AA)-conjugated hairpin oligonucleotide prodrug loading with chemotherapeutic agent (doxorubicin, DOX) (AA-loop-ASON/DOX) for oncotherapy.

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Local and low-redshift (z < 3) galaxies are known to broadly follow a bimodal distribution: actively star-forming galaxies with relatively stable star-formation rates and passive systems. These two populations are connected by galaxies in relatively slow transition. By contrast, theory predicts that star formation was stochastic at early cosmic times and in low-mass systems.

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Persistent human papillomavirus (HPV) infection can lead to cervical intraepithelial neoplasia (CIN) and cervical cancer, posing serious threats to the health of women. Although the cervicovaginal microbiota is strongly associated with CIN, the dynamics of the microbiota during CIN development are unknown. In this retrospective cohort study, we analyzed 3-year longitudinal data from 72 patients diagnosed with a persistent HPV infection almost all caused by high-risk HPV types.

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Objectives: Carbapenem-resistant hypermucoviscous Klebsiella pneumoniae (CR-HMKP) poses unprecedented public health challenges. However, genomic information regarding the CR-HMKP K2-ST375 strain is scarce. The aim of this study was to characterize the whole genome sequence of the CR-HMKP K2-ST375 strain Kp0179 isolated from a male patient in China.

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Issues surrounding rapid degradation and limited therapeutic efficacy still exist in the development of native antisense oligonucleotides (ASONs). In this paper, a novel strategy of chimeric 4A-ASON prodrug combined with chemotherapy for oncotherapy was proposed. The self-assembled hairpin-end prodrug structure provided a DOX loading site, while enhancing stability against nuclease degradation.

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Volatile methylsiloxanes (VMSs) are massively produced chemicals having applications in industry and home because of their physical and chemical characteristics. They are used in personal care products such as cosmetics, household coatings, cleaners, skin care products, and others. Resultantly, large number of VMSs are discharged into air where they can be subjected to atmospheric migrations over long distances causing toxic and estrogenic effects, persistence, and bioaccumulations.

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Antisense oligonucleotides (ASONs) have proven potential for the treatment of various diseases. However, their limited bioavailability restricts their clinical application. New structures with improved enzyme resistance stability and efficient drug delivery are needed.

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Introduction: Familial hypercholesterolaemia (FH) is a common hereditary genetic disorder, characterized by elevated circulating low-density lipoprotein cholesterol (LDL-C) and lipoprotein (a) [Lp(a)] concentrations, leading to atherosclerotic cardiovascular disease (ASCVD). Two types of proprotein convertase subtilisin/kexin type 9 (PCSK9) inhibitors- alirocumab and evolocumab- are efficient drugs in the treatment of FH, which can effectively reduce Lp(a) levels.

Material And Methods: Embase, MEDLINE, and PubMed up to November 2022 were searched for randomized clinical trials (RCTs) evaluating the effect of alirocumab/evolocumab and placebo treatment on plasma Lp(a) levels in FH.

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Antisense oligonucleotides (ASONs) have generated widespread interest as antitumor agents. Nevertheless, the utility of natural ASONs is limited due to their rapid degradation by intracellular and extracellular nucleases. In this work, we proposed a novel prodrug-type ASON with a dumbbell conformation and a responsive disulfide switch.

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Background: Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection has become a public health emergency of international concern. SARS-CoV-2 RNA detection is the diagnostic criterion for coronavirus disease 2019 (COVID-19). Nevertheless, RNA detection has many limitations, such as being time-consuming and cost-prohibitive, and it must be performed in specialized laboratories.

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Hepatocellular carcinoma (HCC), a common type of human malignancies, leads to increasing incidence and fairly high mortality. An increasing number of studies have verified that long noncoding RNAs (lncRNAs) played key roles in the development of multiple human cancers. As a biomarker, SLC16A1-AS1 has been reported in non-small cell lung cancer (NSCLC) and oral squamous cell carcinoma (OSCC).

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Autotransporters are important virulence factors in the outer membrane of gram-negative bacteria. Although several autotransporters have been identified in , only IgA1 protease has been identified in . A sequence analysis showed a marked difference in the distribution of autotransporters between the two strains.

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Background: Human papillomavirus (HPV) is one of the most common sexually transmitted viruses. Data about HPV infection in Guizhou is limited.

Methods: 56,768 cervical samples were collected and genotyped for 15 main high risk and 6 main low risk HPV types.

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Background: Human papillomavirus type-6 (HPV6) is the major etiological agent of anogenital warts both men and women. The present study aimed to characterize the genetic diversity among HPV6 in Southwest China, and to investigate the origin of, selective pressure experienced by, and impact of the resultantly identified genetic variants on the HPV6 secondary structure.

Methods: Phylogenetic trees were constructed by Maximum-likelihood and the Kimura 2-parameters methods by Molecular Evolutionary Genetics Analysis version 6.

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Background: Human papillomavirus (HPV) E6 and E7 oncoproteins play a crucial role in HPV-related diseases, such as cervical cancer, and can be used as ideal targets for therapeutic vaccines. Human leukocyte antigen (HLA) participates in the immune response to block HPV infection and invasion by its target/recognition function. HPV-33 and HPV-58 are highly prevalent among Chinese women.

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Genetic variations among HR-HPV types lead to altered biological functions with possible clinical significance in different geographical locations. To explore intratype genetic variations of HPV51 E6, E7, L1 and L2 genes originating from Southwest China, a total of 5204 cervical scraped cell samples were collected for DNA extraction and HPV typing. And then the E6, E7, L1 and L2 genes of HPV51 (n = 79) were sequenced and compared to the reference sequence (M62877).

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The current study investigated nucleotide variability and phylogeny in high-risk HPV45 collected from Chinese women. Fifty-one samples positive for single infections of HPV45 were collected for DNA extraction and HPV typing. The E6 and E7 genes of HPV45 were sequenced, and then the phylogenetic tree was reconstructed by the maximum likelihood method implemented in IQ-TREE under the HKY nucleotide substitution model.

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Globally, human papillomavirus (HPV)‑56 accounts for a small proportion of all high‑risk HPV types; however, HPV‑56 is detected at a higher rate in Asia, particularly in southwest China. The present study analyzed polymorphisms, intratypic variants, and genetic variability in the long control regions (LCR), E6, E7, and L1 of HPV‑56 (n=75). The LCRs, E6, E7 and L1 were sequenced using a polymerase chain reaction and the sequences were submitted to GenBank.

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