Publications by authors named "Yu-Pei Chen"

The Chinese Society for Therapeutic Radiology Oncology, the Chinese Anti-Cancer Association, the Chinese Society of Clinical Oncology, the Head and Neck Cancer International Group, the European Society for Radiotherapy and Oncology, and the American Society for Radiation Oncology collaboratively developed evidence-based guidelines and a comprehensive contouring atlas for neck target volume delineation in nasopharyngeal carcinoma. These guidelines address five key challenges in modern radiotherapy practice: margin design of clinical target volume; nodal target volume delineation after induction chemotherapy; delineation of equivocal nodes evident on imaging; low-risk clinical target volume delineation based on regional stepwise extension patterns; and modifications for anatomical boundaries of lymphatic areas. Developed through a rigorous systematic review and expert appraisal process by a panel of 50 international, multidisciplinary members from 17 countries and regions, these guidelines incorporate the latest advances in nasopharyngeal carcinoma diagnosis and treatment.

View Article and Find Full Text PDF

The Chinese Society for Therapeutic Radiology Oncology, the Chinese Anti-Cancer Association, the Chinese Society of Clinical Oncology, Head and Neck Cancer International Group, the European Society for Radiotherapy and Oncology, and the American Society for Radiation Oncology jointly developed evidence-based guidelines and a contouring atlas for primary target volume delineation for radiotherapy in nasopharyngeal carcinoma. The guidelines systematically address three crucial challenges: margin design of clinical target volumes; target volume delineation after induction chemotherapy; and low-risk clinical target volume delineation based on local stepwise extension patterns. Based on a comprehensive systematic review and critical appraisal by an international multidisciplinary panel of 50 nasopharyngeal carcinoma specialists from 17 countries and regions, these guidelines are in keeping with advances in nasopharyngeal carcinoma diagnosis and treatment, embodying contemporary treatment concepts, and elaborating on the differences in practice.

View Article and Find Full Text PDF

Background The prognostic implications of middle neck involvement, defined as cervical lymph node metastasis between the caudal border of the hyoid bone and the cricoid cartilage, remain unclear in nasopharyngeal carcinoma (NPC). Purpose To investigate the prognostic significance of middle neck involvement in patients with N1 or N2 NPC. Materials and Methods This retrospective analysis included patients with N1 or N2 NPC without distant metastasis treated between April 2009 and December 2017.

View Article and Find Full Text PDF

Importance: With the programmed cell death protein 1 (PD-1) blockade toripalimab, omitting highly toxic concurrent cisplatin may be feasible for nasopharyngeal carcinoma (NPC) without compromising survival.

Objective: To evaluate the efficacy and safety of toripalimab incorporated into induction chemotherapy and radiotherapy, without concurrent cisplatin, for locoregionally advanced NPC.

Design, Setting, And Participants: Open-label, multicenter, randomized phase 3 clinical trial conducted from August 2021 to July 2022 at 13 hospitals in China, enrolling 532 patients with T4N1M0 or T1-4N2-3M0 NPC; 400 (75.

View Article and Find Full Text PDF

Aloin, an anthraquinone compound, is naturally abundant in the . This study comprehensively investigates the photoprotective effects of aloin against UVB-induced damage in HaCaT cells, elucidating its antioxidant capacity and its role in preventing cellular apoptosis. Aloin demonstrated significant antioxidant activity in ABTS and DPPH assays, with a dose-dependent reduction in intracellular reactive oxygen species levels as evidenced by fluorescence analysis.

View Article and Find Full Text PDF

Background: The association of immune checkpoint inhibitors (ICIs) with radiation-induced oral mucositis (RIOM), a common and debilitating complication that affects the treatment tolerance of head and neck cancer patients, remains unclear.

Methods: In this multicenter retrospective cohort study, 840 eligible patients with locoregionally advanced nasopharyngeal carcinoma (NPC) were included, with propensity score matching (PSM) creating two comparison groups based on the receipt of anti-programmed cell death 1 (anti-PD-1) therapy. Additionally, individual patient data from 197 NPC patients in the CONTINUUM trial (NCT03700476) were used for validation.

View Article and Find Full Text PDF

Objectives: This study aims to investigate the molecular differences and commonalities between systemic sclerosis (SSc) and systemic lupus erythematosus (SLE) by analyzing RNA-sequencing (RNA-seq) data. By focusing on differentially expressed genes and enriched pathways, the investigation seeks to identify unique biomarkers, shared pathways, and potential therapeutic targets for these autoimmune diseases.

Methods: This study involved 10 patients with SSc and 24 with SLE who did not receive immunosuppressants.

View Article and Find Full Text PDF

Neuroblastoma, a prevalent and aggressive childhood cancer, lacks effective treatments. Recent research highlights the repurposing of existing drugs as a strategy for breakthroughs in combating this disease. We systematically analyzed small-molecule perturbation gene expression data from the Library of Integrated Network-Based Cellular Signatures (LINCS), identifying pyrvinium pamoate and sirolimus, two FDA-approved drugs, as potential candidates for neuroblastoma combination therapy.

View Article and Find Full Text PDF

Background: Thrombotic thrombocytopenic purpura (TTP) is an uncommon and life-threatening disorder caused by a deficiency of ADAMTS-13, and eventually leads to microangiopathic hemolytic anemia, severe thrombocytopenia, and organ damages. Acute TTP events could be triggered by infections, or inflammations in the context of ADAMTS-13 deficiency. Recently, several case reports have indicated an association between diabetic ketoacidosis (DKA) and TTP.

View Article and Find Full Text PDF

Background: Alopecia areata is a hair follicle disorder characterized by the development of multiple circular bald patches on the scalp, often accompanied by elevated cytokine production and immune cell infiltration around hair follicles. Our aspiration is to explore whether blood analysis can reveal additional factors that contribute to the disparities between individuals with alopecia areata and those who are healthy. Such research could potentially establish a robust foundation for the advancement of future therapeutic strategies.

View Article and Find Full Text PDF

It is well established that certain carboxylic acid compounds can effectively inhibit tyrosinase activity. This study investigated the mechanisms by which four carboxylic acid compounds-3-phenyllactic acid, lactic acid, L-pyroglutamic acid, and malic acid-inhibit tyrosinase and melanogenesis. IC values for mushroom tyrosinase inhibition ranged from 3.

View Article and Find Full Text PDF

Background: To evaluate anatomical and functional outcomes after vitrectomy with inverted internal limiting membrane flap technique combined with scleral buckling for eyes with rhegmatogenous retinal detachment and a coexisting macular hole.

Methods: Eleven consecutive patients of primary rhegmatogenous retinal detachment with a coexisting macular hole who underwent vitrectomy with internal limiting membrane flap technique combined with scleral buckling surgery between September 2014 and September 2023 were evaluated retrospectively. The main outcome measurements were the retinal reattachment rate, macular hole closure rate, and final postoperative best-corrected visual acuity.

View Article and Find Full Text PDF

Importance: Approximately 20% to 30% of patients with locoregionally advanced nasopharyngeal carcinoma (NPC) experience disease relapse despite definitive chemoradiotherapy. The programmed cell death 1 (PD-1) blockade camrelizumab has demonstrated considerable value in recurrent or metastatic NPC, while its role in locoregionally advanced NPC is unclear.

Objective: To evaluate the efficacy and safety of adjuvant camrelizumab for patients with locoregionally advanced NPC.

View Article and Find Full Text PDF

In traditional Chinese medicine, the root bark and leaves of are utilized to treat dysentery, parasitic infections, and digestive disorders. In this study, the n-butanol extract of (NBA) exhibited potent antioxidant properties, protecting HaCaT cells from UVB-induced damage, and was abundant in phenolic and flavonoid compounds. Using UPLC-QTOF-MS analysis, several antioxidants within NBA were identified.

View Article and Find Full Text PDF

Background: Nearly 90% locoregionally advanced nasopharyngeal carcinoma (LANPC) responds to induction chemotherapy (IC) with significant tumor volume shrinkage. Radiotherapy always follows IC, and reduced volume has been proposed. However, the efficacy and safety of reduced-volume radiotherapy is uncertain.

View Article and Find Full Text PDF

Background: The poor prognosis of locoregionally advanced nasopharyngeal carcinoma (LANPC) due to the high incidence of metastasis necessitates effective treatment strategies. Synergistic effects have been observed when anti-programmed death-1 (PD-1) inhibitors are combined with chemotherapy or targeted therapy.

Objectives: To compare the efficacy and safety of induction chemotherapy in combination with nimotuzumab with or without anti-PD-1 inhibitors for LANPC.

View Article and Find Full Text PDF

Bamboo vinegar has been applied in livestock and fisheries as food additives. In this study, the antioxidant and antifungal properties of bamboo vinegar powder extract (BVPE) and its bioactive compounds were explored. BVPE exhibited significant free radical scavenging activity against DPPH and ABTS radicals, along with notable antifungal effects against Aspergillus terreus and Paecilomyces variotii.

View Article and Find Full Text PDF

Approximately 10,000 metric tons of broiler livers are yielded every year in Taiwan. However, due to unpleasant odor and health concern, these livers are typically discarded as waste in the slaughtering stream in most developed or developed countries. In alignment with global agrocycle policies, a biofunctional chicken-liver hydrolysate (CLH) has been developed.

View Article and Find Full Text PDF

Both concurrent chemoradiotherapy (CCRT) and induction chemotherapy (ICT) followed by CCRT are standard care of advanced nasopharyngeal carcinoma (NPC). However, tailoring personalized treatment is lacking. Herein, we established a radiogenomic clinical decision support system to classify patients into three subgroups according to their predicted disease-free survival (DFS) with CCRT and ICT response.

View Article and Find Full Text PDF

Recurrence risks of cancer patient can change during treatment as a result of treatment-related tumor evolution. However, biomarkers that can monitor these changes are lacking. Here, we investigated whether tracking circulating tumor DNA (ctDNA) dynamics through liquid biopsy can inform real-time recurrence risk.

View Article and Find Full Text PDF

When applied as the standard therapeutic modality, intensity-modulated radiotherapy (IMRT) improves local control and survival rates in patients with nasopharyngeal carcinoma (NPC). However, distant metastasis continues to be the leading cause of treatment failure. Here, we review the most recent optimization strategies for combining chemotherapy with IMRT in high-risk patients with locoregionally advanced NPC.

View Article and Find Full Text PDF
Article Synopsis
  • This clinical trial explored the effectiveness of adding sintilimab, a PD-1 inhibitor, to standard chemoradiotherapy for patients with high-risk, locoregionally advanced nasopharyngeal carcinoma.
  • Results showed that the sintilimab group had significantly better event-free survival rates compared to the standard therapy group at a median follow-up of nearly 42 months.
  • The trial also reported that a high percentage of patients experienced grade 3-4 adverse events, indicating a need for monitoring side effects in this treatment approach.
View Article and Find Full Text PDF

The AJCC/UICC TNM classification describes anatomic extent of tumor progression and guides treatment decisions. Our comprehensive analysis of 8,834 newly diagnosed patients with non-metastatic Epstein-Barr virus related nasopharyngeal carcinoma (NPC) from six Chinese centers indicates certain limitations in the current staging system. The 8th edition of the AJCC/UICC TNM classification inadequately differentiates patient outcomes, particularly between T2 and T3 categories and within the N classification.

View Article and Find Full Text PDF

To investigate the patterns of local failure and prognosis in patients with locally recurrent nasopharyngeal carcinoma (rNPC) after primary intensity-modulated radiotherapy (IMRT). The data of 298 patients with locally rNPC after IMRT were retrospectively analyzed. Magnetic resonance images of the initial and recurrent tumors were reviewed and, for patients with extra-nasopharyngeal local recurrence, the gross tumor volume of local recurrence was transferred to the original IMRT plan for dosimetry analysis.

View Article and Find Full Text PDF

Background: Tea (Camellia sinensis L.) flowers will compete with tea leaves in nutrition and are abandoned as an undesirable by-product. In this study, the biological efficacy of tea flowers was investigated.

View Article and Find Full Text PDF