Publications by authors named "Shu-chen Liu"

Article Synopsis
  • Redox imbalance and oxidative stress are linked to serious health issues like neurodegenerative disorders, cancer, and premature aging, making accurate detection of antioxidants important for managing these conditions.
  • This study introduces a new fluorescence-based assay that uses dithiothreitol (DTT)-assisted gold nanoclusters (DTT@BSA-AuNCs) to detect antioxidant levels more effectively than traditional methods, which often miss thiol-containing antioxidants.
  • The assay can identify antioxidants like ascorbic acid and glutathione at very low concentrations and has proven effective in human saliva and cancer cell models, offering a reliable and cost-effective way to monitor oxidative stress in various diseases.
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Two new sulfur glycosides, bursapastoris A-B (-), were extracted and isolated from shepherd's purse seed, along with two new natural products, 11-(methylsulfinyl)undecanoic acid () and 10-(methylsulfinyl)decanoic acid (). Their structures were determined though infrared spectroscopy, one-dimensional nuclear magnetic resonance (H and C), and electrospray ionization mass spectrometry. Additionally, the structures of - were further identified by two-dimensional nuclear magnetic resonance (HMBC, HSQC, H-H COSY, and NOESY).

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Xanthoceras sorbifolium Bunge, also known as Tu-Mu-Gua and Wen-Dan-Ge-Zi, has several applications. Clinical data and experimental studies have shown anti-tumor, anti-inflammatory, anti-bacterial, and anti-oxidant properties of Xanthoceras sorbifolium Bunge that inhibits prostate hyperplasia, lowers blood pressure and lipid level, and treats enuresis and urinary incontinence. It also has neuroprotective effects and can treat Alzheimer's disease and Parkinson's syndrome.

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Phytochemical investigation of 70% EtOH extract of the seeds of Capsella bursa-pastoris led to the isolation of a new cyclobutane organic acid (1), and fourteen known compounds, including two organosulfur compounds (2, 3), two quinonoids (4, 5), five flavonoids (6-10), three sterols (11-13) and two other types (14, 15). The structures of the compounds were elucidated by extensive spectroscopic analyses as well as comparison of their spectroscopic data with those reported in the literature. The antioxidant capacities of all compounds and extractive fractions were evaluated by the 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical-scavenging test and ferric reducing antioxidant power (FRAP) assay.

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Purpose: Nasopharyngeal carcinoma is highly metastatic but difficult to detect in its early stages. It is critical to develop a simple and highly efficient molecular diagnostic method for early detection of NPC in clinical biopsies.

Methods: The transcriptomic data of primary NPC cell strains were used as a discovery tool.

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One new pentacyclic triterpenoid glycoside, ardisiapunine E (1), along with two known compounds were isolated from the root of Ardisia lindleyana D.Dietr. Their structures were elucidated by H and C NMR, DEPT, HMBC, HSQC, H-H COSY and NOESY spectroscopic analyses, ESI-MS, and literature.

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Background: The progression of nasopharyngeal carcinoma (NPC) is profoundly affected by Epstein-Barr virus (EBV) infection. However, the role of EBV in the intercommunication between NPC and surrounding stromal cells has yet to be explored.

Methods: NPC biopsies were obtained for immunohistochemical (IHC) analyses.

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Radioresistance is one of the major factors that contributes to radiotherapy failure in oral cavity squamous cell carcinoma (OSCC). By comparing the prognostic values of 20,502 genes expressed in patients in The Cancer Genome Atlas (TCGA)-OSCC cohort with ( = 162) and without radiotherapy ( = 118), herein identified 297 genes positively correlated with poor disease-free survival in OSCC patients with radiotherapy as the potential radioresistance-associated genes. Among the potential radioresistance-associated genes, 36 genes were upregulated in cancerous tissues relative to normal tissues.

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Xanthoceras sorbifolia, an excellent oil-rich woody species, has high comprehensive economic value in edible, medicinal, and ornamental fields. The chemical composition, pharmacological effect, and quality control of X. sorbifolia were introduced, and its development and application were reviewed in this study.

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The most frequent location of metastatic EBV+ nasopharyngeal carcinoma (NPC) is the bone marrow, an adipocyte-dominant region. Several EBV-associated lymphoepithelioma-like carcinoma (LELC) types also grow in the anatomical vicinity of fat tissues. Here we show that in an adipose tissue-rich tumor setting, EBV targets adipocytes and remodels the tumor microenvironment.

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Article Synopsis
  • *The study found that miR-524-5p, a tumor suppressor, is significantly lower in melanoma tissues compared to normal tissues and its overexpression can hinder growth and invasiveness in resistant melanoma cells.
  • *Increased levels of miR-524-5p correlate with better treatment responses in patients, suggesting it could be a potential therapeutic target and a useful biomarker for BRAF inhibitor-resistant melanoma.
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With-no-lysine (K)-1 (WNK1) is the founding member of family of four protein kinases with atypical placement of catalytic lysine that play important roles in regulating epithelial ion transport. Gain-of-function mutations of WNK1 and WNK4 cause a mendelian hypertension and hyperkalemic disease. WNK1 is ubiquitously expressed and essential for embryonic angiogenesis in mice.

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Background: Growing evidence indicates that measures of body composition may be related to clinical outcomes in patients with malignancies. The aim of this study was to investigate whether measures of regional adiposity-including subcutaneous adipose tissue index (SATI) and visceral adipose tissue index (VATI)-can be associated with overall survival (OS) in Taiwanese patients with bone metastases.

Methods: This is a retrospective analysis of prospectively collected data.

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Article Synopsis
  • Older patients with metastatic cancer tend to have higher neutrophil-to-lymphocyte ratios (NLR) and lower overall survival (OS) rates compared to younger patients.
  • Research involving 3981 patients showed that a pretreatment NLR below the median is an independent indicator of better OS for both age groups.
  • Specifically for older patients, those with a low NLR who received systemic therapy had the best survival outcomes.
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Metastasis remains a clinically unsolved issue in nasopharyngeal carcinoma. Here, we report that higher levels of cytoplasmic leukemia inhibitory factor (LIF) and LIF receptor are correlated with poorer metastasis/recurrence-free survival. Further, single nucleotide variations and signal peptide mutation of LIF are identified in NPC.

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We report the experimental observation of speeded-up collective motion of the monolayer endothelia-cancer mixture on a collagen-coated substrate, after the invasion of a small fraction of motile cancer cells into the confluent endothelial monolayer, through disrupting cell-cell junctions. It is found that, with an increasing waiting time, the cancer-free confluent endothelial monolayer exhibits a dynamical slowing-down of liquidlike micromotion with a gradually decreasing degree of superdiffusion. After invasion, cancer cells aggregate and exhibit turbulentlike cooperative motion, which is enhanced with the increasing size of gradually aggregated cancer clusters, confined by the fluctuating boundaries of surrounding endothelial cells.

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Objective: To investigate microwave-induced morphological and functional injury of natural killer (NK) cells and uncover their mechanisms.

Methods: NK-92 cells were exposed to 10, 30, and 50 mW/cm2 microwaves for 5 min. Ultrastructural changes, cellular apoptosis and cell cycle regulation were detected at 1 h and 24 h after exposure.

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Objective: To determine the effects of different formulations of Banxia Xiexin Decoction ( , BXD) on the pharmacokinetics of baicalin (BAL) in mice.

Methods: Pungent, bitter, and sweet components of BXD (totaling 7 Chinese herbs) were formulated into the following groups: K (bitter herbs), XK (pungent and bitter herbs), KG (bitter and sweet herbs), and BXD (all 7 herbs) groups. These different formulations were administered intragastrically in mice, and blood was collected via the tail vein for continuous monitoring.

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Objectives: To examine adherence to relaxation guided imagery in women experiencing preterm labor as well as predictors influencing adherence.

Methods: This study used a longitudinal follow-up approach. Each of the 57 participating women received a mini-MP3 player containing a 13-minute relaxation guided imagery audio program that they were instructed to follow daily until giving birth.

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The level of total adiponectin, a mixture of different adiponectin forms, has been reported associated with breast cancer risk with inconsistent results. Whether the different forms play different roles in breast cancer risk prediction is unclear. To examine this, we measured total and high molecular weight (HMW) adiponectin in a case-control study (1167 sets).

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Article Synopsis
  • Antivascular immunity could help protect people from tumors by stopping new blood vessels from forming that would help tumors grow.
  • Researchers studied a protein from a cancer linked to a virus, called N-LMP1, to see how it might get the immune system to fight against tumors.
  • They found that a type of immune cell called CD4 T cells plays a big role in preventing tumors by targeting the area around the tumor and using a specific kind of immune response.
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Oral cavity squamous cell carcinoma (OSCC), which is a leading cause of cancer-related death worldwide, is frequently associated with poor prognosis and mortality. The discovery of body fluid-accessible biomarkers may help improve the detection of OSCC. In the present work, we established primary cell cultures derived from OSCC and adjacent noncancerous epithelium and performed comparative profiling of their secretomes.

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  • The study involves the treatment of a compound, [Et4N][Tp*WS3] (1), with various copper halides and phosphine ligands, leading to the formation of several new trinuclear clusters (2-7) characterized by advanced techniques.
  • These clusters feature a butterfly-shaped [Tp*WS3Cu2] core, with coordination of copper ions through sulfur and phosphine ligands, resulting in both neutral and cationic structures with diverse connectivity.
  • The newly synthesized compounds were analyzed for their structural properties and also tested for their third-order nonlinear optical properties using a femtosecond laser technique, indicating potential applications in photonics.
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Although Epstein-Barr virus-associated nasopharyngeal carcinoma (NPC) is a highly radiosensitive cancer, approximately 20% of patients with NPC develop local recurrence after radiation therapy. Multiple proinflammatory cytokines are thought to protect NPC tumor cells from immune surveillance and therapeutic interventions. The cytokine leukemia inhibitory factor (LIF) is a critical component of the NPC microenvironment.

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