Publications by authors named "Xiang-ping Chen"

Pathogenesis of endometriosis (EN) is still unknown, but growing evidence suggests that immune regulation may be important, and the pattern of peripheral immune changes in reproductive women with EN has yet to be fully explored. In this study, we conducted a comprehensive and systematic analysis of immune cell subsets within T cells, B cells, NK cells, and γδ T cells in peripheral blood (PB) samples from women with EN, women with uterine fibroids (UF) but without EN (UF-alone), and healthy controls using multi-parameter flow cytometry. Our findings revealed that UF, a common comorbidity of EN, exhibited similar peripheral immune features to EN, particularly in T cell and B cell immunity.

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Two tryptophan compound classes 5- and 6-borono PEGylated boronotryptophan derivatives have been prepared for assessing their aqueous solubility as formulation of injections for boron neutron capture therapy (BNCT). The PEGylation has improved their aqueous solubility thereby increasing their test concentration in 1 mM without suffering from toxicity. In-vitro uptake assay of PEGylated 5- and 6-boronotryptophan showed that the B-10 concentration can reach 15-50 ppm in U87 cell whereas the uptake in LN229 cell varies.

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Objective: To investigate the status of transfusion-transmissible infection (TTI) among voluntary blood donors in Nanjing in recent five years, in order to provide data support for the recruitment of blood donors and formulation and updating of blood screening strategies.

Methods: HIV/HBV/HCV/TP serological markers were detected by ELISA in 487 120 blood donors in Nanjing from 2016 to 2020. Confirmatory assay was applied in anti-HIV positive samples by Nanjing Municipal Center for Disease Control and Prevention.

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  • The study focused on creating a prognostic model using MRI radiomics features to predict the risk of distant metastasis in nasopharyngeal carcinoma (NPC) patients.
  • Researchers analyzed various MRI scans and compared the performance of radiomics models, clinical models, and merged models using a cohort of 518 patients.
  • Results showed that the combined T1+T1C radiomics model outperformed both the clinical and other radiomics models in predicting distant metastasis-free survival (DMFS) in a validation group of 260 NPC patients.
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Objective To study the correlation of B-type natriuretic peptide(BNP)level with hemodynamic parameters and inflammatory cytokines in patients with Gram-negative sepsis,and further determine the main factors for the significant increase of BNP level. Methods The prospective study method was applied,and septic patients infected with Gram-negative bacteria from May 2017 to October 2019 were enrolled.The patients were divided into the BNP<2400 ng/L group and the BNP≥2400 ng/L group by taking the average value of BNP as the dividing point.

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T cell receptors (TCRs) are a class of T cell surface molecules that recognize the antigen-derived peptides presented by the major histocompatibility complex (MHC) and are able to trigger a series of immune responses. TCRs are important members of the adaptive immune system that arose in the jawed fish 500 million years ago. T cell receptor beta variable (TRBV) genes have been widely used to characterize TCR repertoires.

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There is increasing evidence that deep sequencing-based T cell repertoire can sever as a biomarker of immune response in cancer patients; however, the characteristics of T cell repertoire including diversity and similarity, as well as its prognostic significance in patients with cervical cancer (CC) remain unknown. In this study, we applied a high throughput T cell receptor (TCR) sequencing method to characterize the T cell repertoires of peripheral blood samples from 25 CC patients, 30 cervical intraepithelial neoplasia (CIN) patients and 20 healthy women for understanding the immune alterations during the cervix carcinogenesis. In addition, we also explored the signatures of TCR repertoires in the cervical tumor tissues and paired sentinel lymph nodes from 16 CC patients and their potential value in predicting the prognosis of patients.

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Purpose: CD8 T cells are primarily cytotoxic cells that provide immunological protection against malignant cells. Considerable evidence suggests that the T-cell repertoire is closely associated with the host immune response and the development of cancer. In this study, we explored the characteristics of the circulating CD8 T-cell repertoire and their potential value in predicting the clinical response of breast cancer patients to chemotherapy.

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  • Researchers investigated T-cell immune responses in nasopharyngeal carcinoma (NPC) patients to improve immunotherapy treatments, focusing on T-cell distribution and characteristics.
  • They found that tumors had lower TCR repertoire diversity compared to adjacent normal tissues, which was linked to poorer prognosis, while a higher diversity in peripheral blood was also associated with worse outcomes.
  • The study identified specific TCR clonotypes shared between tumors and peripheral blood that could be targeted in future adoptive immunotherapy approaches for NPC patients.
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Tumor-infiltrating T cell repertoire has been demonstrated to be closely associated with anti-tumor immune response. However, the relationship between T cell repertoire in tumor tissue and prognosis has never been reported in Hepatocellular carcinoma (HCC). We performed the high-throughput T cell receptor (TCR) sequencing to systematically characterize the infiltrating T cell repertoires of tumor and matched adjacent normal tissues from 23 HBV-associated HCC patients.

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  • Ankylosing spondylitis (AS) is an autoimmune disease that primarily affects the spine and joints, with T cells playing a crucial role in its inflammatory responses.
  • * A study using TCR β chains high-throughput sequencing in AS patients revealed a lower diversity of T cell receptors (TCRs) in their blood compared to healthy controls.
  • * Patients with more severe AS exhibited a more restricted TCR repertoire, suggesting that TCR diversity may correlate with disease severity, though no significant biased usage of specific TCR genes was found.
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Background: Potential clinical application values of certain cytokines and chemokines that participate in the process of tumor growth, invasion, and metastasis have been reported. However, there still lack of biomarkers for a great many of malignancy. This study identified cytokines or chemokines involved in the occurrence and development of nasopharyngeal carcinoma (NPC), which might be a biomarker for noninvasive early diagnosis.

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An e-waste dismantling industrial park of Taizhou was selected as the sampling center, within a radius of 16 km, and a total of 30 sampling sites were designed in three circles as follows: C (3 km), S (5-10 km) and R (10-16 km). Pollution characteristics and ecological risk of polybrominated diphenyl ethers (PBDEs) in water and sediments were investigated. The concentrations of PBDEs in water ranged from 9.

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  • - The study aimed to assess how water storage and aquaculture projects impact the control of Oncomelania hupensis snails in the tidal flats wetlands of the lower Yangtze River.
  • - After a year of implementing seven projects, all snails were eliminated, yielding significant cost savings (approximately 69.20 thousand yuan annually) and high net benefits for specific projects.
  • - While the projects effectively reduced snail populations and provided economic advantages, considerations for wetland ecological protection and flood control are essential.
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  • The objective of the study was to assess a schistosomiasis control plan in marshland regions and identify strategies for effectively reducing and potentially eliminating the disease.
  • A field study in Dantu District, Zhenjiang City, used a comprehensive approach to control schistosomiasis by focusing on key villages, environments, and water regions, collecting data on infection rates in humans, animals, and snails before and after the interventions.
  • Results showed significant infrastructure improvements and health interventions implemented from 2005 to 2014 that led to a yearly decline in infection rates among humans, domestic animals, and snails, indicating the plan's effectiveness.
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  • The study investigates how diffusion-weighted MRI using apparent diffusion coefficient (ADC) can predict responses to neoadjuvant chemotherapy in patients with nasopharyngeal carcinoma (NPC).
  • A retrospective analysis of 92 NPC patients showed that lower pretreatment ADC values were associated with better responses to chemotherapy, with statistically significant findings for both primary lesions and metastatic sites.
  • The research suggests that ADC measurements could serve as a valuable imaging biomarker to evaluate chemotherapy effectiveness in NPC patients before treatment starts.
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  • This study aims to subclassify parapharyngeal extension in nasopharyngeal carcinoma (NPC) and evaluate its effects on patient prognosis using MRI data.
  • The researchers analyzed 1504 NPC patients treated with radiation therapy and found that 73.4% had parapharyngeal extension, with varying involvement across anatomical sites.
  • Results indicate that extensive parapharyngeal extension correlates with poorer overall survival, local relapse-free survival, and distant metastasis-free survival, suggesting it should be classified as T4 disease, while mild extension is akin to T2 disease.
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We have previous found a positive correlation between post-therapy TCR repertoire normalization and remission of colorectal cancer (CRC) patients following fluorouracil, leucovorin, and irinotecan (FOLFIRI) plus bevacizumab or Rh-endostatin therapy. To further define the TCR repertoire diversity changes following treatment in CRC patients, and confirm its potential prognostic value, the present study extended the sample size of follow-up and used an alternative therapy regime to investigate changes of TCR repertoires following Erbitux plus FOLFIRI therapy. Inclusion and exclusion criteria have been established to screen out 26 patients to receive Erbitux plus FOLFIRI therapy.

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Purpose: To derive a suitable method for grading masticator space invasion in nasopharyngeal carcinoma on the basis of magnetic resonance (MR) images and to determine its prognostic value in patients undergoing intensity-modulated radiation therapy.

Materials And Methods: After institutional review board approval and informed consent were acquired, 808 patients with nasopharyngeal carcinoma who were treated with definitive intensity-modulated radiation therapy were analyzed retrospectively. The anatomic sites of masticator space involvement were identified with MR imaging.

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The surveillance of schistosomiasis in Sanzhou Village, a national schistosomiasis surveillance site, in Gaoqiao Town of Dantu District, Zhenjiang City from 2005 to 2009 showed that the schistosomiasis morbidity remained in a low level in the surveillance site; however, the Oncomelania snails and infected snail areas remained high. It is suggested that, in addition to snail control, comprehensive control measures should be strengthened, and the causes of infected snails in marshland should be investigated, so as to clarify the roles of various hosts in transmission of schistosomiasis.

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Objective: To assess the medical community's awareness and practice regarding delirium in the intensive care unit (ICU).

Methods: One hundred and ten predesigned questionnaires were distributed to ICU practitioners in the affiliated hospitals of Zhejiang University.

Results: A total of 105 valid questionnaires were collected.

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Objectives: It is confirmed that most neonatal subependymal cysts (SEC) are closely correlated with intrauterine infection and the short-term prognosis of SEC is not very good. Little information about the long-term prognosis of SEC is available. The purpose of the present study was to explore the short-term and long-term prognosis of neonatal SEC cases via a 6-year follow up.

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Objective: To evaluate the modified wound closure technique and other methods for preventing and treating the cerebrospinal fluid (CSF) leakage after removal of acoustic neuroma by translabyrinthine approach.

Methods: In a series of 85 cases of acoustic neuroma surgery, two kinds of technique of wound closure, the traditional (as first group) and the modified (as second group), have been subsequently used to prevent CSF leakage. The incidences of CSF leak were analyzed respectively.

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