Publications by authors named "Huacheng Hu"

Person verification using online handwritten signatures is one of the most widely researched behavior-biometrics. Many signature verification systems typically require five, ten, or even more signatures for an enrolled user to provide an accurate verification of the claimed identity. To mitigate this drawback, this paper proposes a new elastic curve matching using only one reference signature, which we have named the curve similarity model (CSM).

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This paper proposed a new novel method to adaptively detect gait patterns in real time through the ground contact forces (GCFs) measured by load cell. The curve similarity model (CSM) is used to identify the division of off-ground and on-ground statuses, and differentiate gait patterns based on the detection rules. Traditionally, published threshold-based methods detect gait patterns by means of setting a fixed threshold to divide the GCFs into on-ground and off-ground statuses.

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Radiotherapy resistance is an enduring major setback in lung cancer therapy, and is responsible for a large proportion of treatment failures. In previous years, cyclooxygenase-2 (COX-2) has frequently been reported to promote tumor occurrence and development, suggesting a potential role in radiotherapy resistance. To investigate whether COX-2 inhibitors can be applied in radiosensitization, an MTT assay was performed to examine cell viability after X-ray radiation in the presence or absence of the specific COX-2 inhibitor Celecoxib.

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Previous studies on PTP4A3 mainly focused on tumor metastasis due to the close relationship between the overexpression of lung cancer and metastasis. However, the role of PTP4A3 in the proliferation of tumor still has remained unclear. To investigate the role of PTP4A3 in cell growth of lung cancer, we constructed PTP4A3-siRNA expressing lentivirus and infected human lung cancer H1299 cells, and then examined the inhibitory effect of PTP4A3 in vitro.

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Objective: To detect the expression of B7-H3 and CD133 in human non-small cell lung cancer (NSCLC) specimens and lung benign lesions, and to evaluate the correlation between the 2 biomarkers and clinicopathologic features.

Methods: This is a case-control study of 102 tissue specimens collected from NSCLC participants undergoing thoracic surgery in the Second Affiliated Hospital of Soochow University, Suzhou, China, between January 2006 and December 2008. From the 102 patients, 25 adjacent non-cancer samples were verified pathologically as normal tissue (positive group), and 24 benign inflammatory lesion tissues were used as control (negative group).

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Objective: To investigate the changes in expression profiles of angiomotin (Amot), schlafen5 (Slfn5), metalloproteinase-9 (MMP-9) and vascular endothelial cell growth factor (VEGF), which are genes associated with angiogenesis, tumor growth and invasion, after gene silencing of pleiotrophin (PTN) in human small cell lung cancer H446 cells.

Methods: PTN expression in H446 cells was determined by RT-PCR and Western blot. After constructing a lentiviral vector interfering PTN expression, it was packaged into virus in 293T cells.

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Objective: To construct a siRNA lentiviral expressing vector targeting PTN (pleiotrophin) gene in human small cell lung cancer H446 cells and to study the RNAi effect on tumor growth and apoptosis.

Methods: Four pairs of small hairpin RNA specific for PTN were designed, synthesized and cloned into the Plvthm vector. The resulting lentiviral vector containing shPTN was confirmed by DNA sequencing named LV-shPTN.

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Obesity and inflammation are known to correlate with the pathogenesis of obstructive sleep apnea syndrome (OSAS). Interleukin (IL)-6, an important regulator of obesity and inflammation, was reported to phenotypically increase in patients with OSAS. This study aimed to investigate whether genetic variants in IL-6 confer susceptibility to OSAS.

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Objective: To investigate the diagnostic value of volumetric capnography in the assessment of asthmatic exacerbation.

Methods: Sixty-four patients with asthma exacerbation and 20 normal controls performed spirometry and volumetric capnography recording. The patients with asthma were divided into three sub-groups according to FEV1% pred (A: > 80%, B:40% - 80%, C: < 40%).

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Background & Objective: Up-regulation of a disintegrin and metalloprotease 8 (ADAM8) is correlated with genesis, progression, invasion, and metastasis of tumors. However, the expression of ADAM8, especially its correlation to epidermal growth factor receptor (EGFR), has seldom been reported in non-small cell lung cancer (NSCLC). This study was to investigate expressions of ADAM8 and EGFR in NSCLC, and to analyze their correlations.

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