Publications by authors named "Lichao Yu"

Accurate measurement of the vibrotactile acuities of the human torso is the key to designing effective torso-worn vibrotactile displays for healthcare applications such as navigation aids for visually impaired persons. Although efforts have been made to measure vibrotactile acuities, there remains a lack of systematic studies addressing the spatial, temporal, and intensity-related aspects of vibrotactile sensitivity on the human torso. In this work, a torso-worn vibrotactile belt consisting of two crossed coin motor arrays was designed and a psychophysical study was carried out to measure the spatial, temporal, and intensity-related vibrotactile acuities of a set of human subjects wearing the designed belt.

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Background: Photodynamic therapy (PDT) is a pioneering and effective anticancer modality with low adverse effects and high selectivity. Hypochlorous acid or hypochlorite (HClO/ClO) is a type of inflammatory cytokine. The abnormal increase of ClO in tumor cells is related to tumor pathogenesis and may be a "friend" for the design and synthesis of responsive phototherapy agents.

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Bacterial infections are closely correlated with the genesis and progression of cancer, and the elimination of cancer-related bacteria may improve the efficacy of cancer treatment. However, the combinatorial therapy that utilizes two or more chemodrugs will increase potential adverse effects. Image-guided photodynamic therapy is a highly precise and potential therapy to treat tumor and microbial infections.

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Solution blowing is a rapidly developing technology for the rapid and large-scale preparation of nanofibers, driven by its advantages, such as wide adaptability to raw materials, simple and safe operation, and ease of scalable production. Most of the research related to solution blowing mainly focuses on the fiber spinning and forming principle, fiber structure and properties, and the development of new materials. Limited studies have focused on the airflow field and fiber motion in solution blowing.

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Vibration monitoring is one of the most effective approaches for bearing fault diagnosis. Within this category of techniques, sparsity constraint-based regularization has received considerable attention for its capability to accurately extract repetitive transients from noisy vibration signals. The optimal solution of a sparse regularization problem is determined by the regularization term and the data fitting term in the cost function according to their weights, so a tradeoff between sparsity and data fidelity has to be made inevitably, which restricts conventional regularization methods from maintaining strong sparsity-promoting capability and high fitting accuracy at the same time.

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Cancer immunotherapy presents a promising approach to fight against cancer by utilizing the immune system. Recently, engineered microorganisms have emerged as a potential strategy in cancer immunotherapy. These microorganisms, including bacteria and viruses, can be designed and modified using synthetic biology and genetic engineering techniques to target cancer cells and modulate the immune system.

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In two-dimensional (2D) solids, point defects, i.e., vacancies and interstitials, are bound states of topological defects of edge dislocations and disclinations.

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Article Synopsis
  • The study examines the mechanical properties and long-term durability of virgin and recycled polysulfone plastics (PSU) derived from waste nonwovens.
  • The research involved mechanical tests like tensile and Izod impact tests to assess how multiple recycling cycles affect PSU performance.
  • Findings indicate that while recycled PSU has similar tensile strength, its impact strength is lower, and both long-term durability and thermal stability decline with increased recycling due to impurities and molecular degradation.
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In a previous study, survivin mRNA expression in non-small cell lung cancer (NSCLC) tissue had been demonstrated to be associated with unfavorable prognosis of patients treated with chemotherapy. In this study, we investigated the survivin mRNA levels in blood of patients with stage IIIA-N2 NSCLC and their association with the efficacy of neoadjuvant chemotherapy (NCT) and disease-free survival (DFS) and overall survival (OS). Blood specimens were collected from 56 patients with stage IIIA-N2 NSCLC before (N0) and after the complete of NCT (N1).

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The INK4b-ARF-INK4a gene cluster encodes three tumor suppressors: p15(INK4b), p14(ARF), and p16(INK4a). Antisense non-coding RNA in the INK4 locus (ANRIL) is transcribed in the opposite direction from this gene cluster. Recent studies suggest that ANRIL represses the expression of p15(INK4b), p14(ARF), and p16(INK4a); however, the underlying mechanism is unclear.

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LUNX is a lung-specific gene whose messenger ribonucleic acid (mRNA) expression is strictly limited to normal lung tissue and nonsmall cell lung cancer (NSCLC) tissue. The aim of this study was to investigate whether the detection of LUNX mRNA-positive circulating tumor cells (CTC)s in peripheral blood at different time points is useful for predicting disease recurrence, disease-free survival (DFS), and overall survival (OS) in NSCLC patients undergoing surgery. Serial blood samples from 68 patients with stage I-IIIA NSCLC were examined by real-time quantitative polymerase chain reaction assay targeting LUNX mRNA before (T0) and after surgery (T1) and after the completion of adjuvant chemotherapy (T2).

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The aim of this study was to assess the prognostic value of EpCAM/MUC1 mRNA-positive circulating tumor cells (CTCs) in patients with non-small cell lung cancer (NSCLC). The presence of EpCAM/MUC1 mRNA-positive CTCs was evaluated in 74 NSCLC patients before the initiation of any therapy, from which 61 patients with surgical resection of tumor were also evaluable for EpCAM/MUC1 mRNA-positive CTC analysis after surgery, by quantitative real-time PCR assay. Sixty patients with benign lung disease (BLD) entered this study as controls.

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Lymph node metastasis is a major prognostic factor in resected non-small cell lung cancer (NSCLC). However, 30-40 % rate of recurrence after performing complete resection in node-negative patients suggests that their nodal staging is suboptimal. We aimed to evaluate the molecular diagnosis and prognostic significance of lymph node micrometastasis in patients with node-negative NSCLC.

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Chemokine/chemokine receptor interactions play a critical role in lymphocyte infiltration of tumors. Recent studies suggest that Th17 cells accumulate within many types of tumors, although the mechanisms that control this are unclear. We studied the distribution and phenotypic features of Th17 cells chemokine receptors, as well as the mRNA levels of CCL2, CCL17, CCL20, and CCL22 in tumors of patients with esophageal squamous cell carcinoma.

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Increased interleukin-17 (IL-17)-producing Th (Th17) cells have been described in a variety of human carcinoma cases, however, the mechanism of Th17 cells' accumulation in a tumor microenvironment remains elusive. This study was designed to investigate whether Th17 cells were involved in the development of esophageal cancer. We found that the proportion of Th17 cells increased within the peripheral blood and tumor tissues of esophageal cancer patients.

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Aim: To evaluate the efficacy of current chemoradiotherapy on improvement of survival in patients with superior sulcus non-small cell lung cancer (NSCLC).

Methods: We retrospectively reviewed the data of 39 patients with superior sulcus NSCLC treated with induction therapy followed surgery. The patients were divided into two groups according to the induction approach: the induction radiotherapy (RT) group (1993-1999), and the induction chemoradiotherapy (CT/RT) group (since 1999).

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The development of resistance to chemotherapy is one of the major obstacles in the treatment of non-small cell lung cancer (NSCLC). The purpose of this study was to investigate the prognostic value of multidrug resistance protein 1 (MRP1), breast cancer resistance protein (BCRP), lung resistance-related protein (LRP), and excision repair cross-complementing 1 (ERCC1) in NSCLC patients receiving cisplatin-based adjuvant chemotherapy (cisplatin plus vinorelbine or gemcitabine) after tumor resection. We used semiquantitative reverse-transcription polymerase chain reaction to detect the expression of MRP1, BCRP, LRP and ERCC1 mRNA in surgical resection specimens of 60 patients with stage IB through IIIA NSCLC.

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Objective: Survivin and livin, which are members of the inhibitor of apoptosis protein family, regulate both programmed cell death and proliferation. Second mitochondria-derived activator of caspase is thought to regulate apoptosis by antagonizing inhibitor of apoptosis protein. These gene expressions are regarded as prognostic markers in some malignancies.

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Background: Prognosis of stage IIIA N2 non-small cell lung cancer (NSCLC) remains poor despite the changes in therapeutic strategies.

Objectives: To assess long term results of neo adjuvant therapy followed by surgery for patients with stage IIIA N2 NSCLC and to analyze factors influencing survival.

Materials And Methods: The methods adopted include: Retrospective review of medical records of 91 patients with stage IIIA N2 NSCLC, who received neo adjuvant therapy followed by surgery; collection of information on demographic information, staging procedure, preoperative therapy, clinical response, type of resection, pathologic response of tumor, status of lymph nodes and adjuvant chemotherapy; survival analysis by Kaplan-Meier and calculation of prognostic factors using log-rank and Cox regression model.

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Purpose: The aim of this study was to investigate prognostic value of multidrug resistance protein 1 (MRP1), breast cancer resistance protein (BCRP), lung resistance-related protein (LRP) and excision repair cross-complementing 1 (ERCC1) in patients with locally advanced non-small cell lung cancer (NSCLC) who received neoadjuvant cisplatin-based chemotherapy.

Methods: Transbronchial biopsy (TBB) specimens from 46 patients with stage IIIA (N(2)) NSCLC were collected to determine the expression level of MRP1, BCRP, LRP and ERCC1 mRNA by semiquantitative RT-PCR. The expression level of each gene was analyzed in relation to histopathologic response to chemotherapy, and tumor-free survival (TFS) and overall survival.

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Background: The survival rates for stage IIIA and stage IIIB non-small-cell lung cancer (NSCLC) are extremely poor with single-treatment modalities such as radiation therapy or surgery. The purpose of this study is to assess tolerability, response, surgical resectability, and survival of chemotherapy followed by chemoradiation therapy, and then followed by surgery in patients with stage IIIA (N2-bulky) or stage IIIB NSCLC.

Patients And Methods: Forty-eight patients with stage IIIA (N2-bulky) or stage IIIB (T4 N1-2 M0) NSCLC received 2 cycles of chemotherapy with cisplatin, mitomycin, and vindesine, subsequent radiation therapy (45 Gy, twice-daily 1.

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Objective: To investigate the curative effect of antiphlogistic agent series on treating chronic nonbacterial prostatitis (CNP).

Methods: One hundred and sixty patients were randomized into 4 groups for an 8-week clinical observation: group A (oral antiphlogistic medicinal granules only), group B (oral antiphlogistic medicinal granules + retention enema), group C (oral antiphlogistic medicinal granules + rectal), and group D (antiphlogistic medicinal granules + rectally + hip bath). Single blind trials were employed.

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