Publications by authors named "Xiao-feng Duan"

Objective: The aim of this study was to construct a multicompartment synchronous rotating bioreactor (MCSRB) for batch-production of homogenized adipose-derived stem cell (ADSC) microspheres and treat neurogenic erectile dysfunction (ED).

Methods: Firstly, an MCSRB was constructed using a centrifugal device and hinged trays. Secondly, influence factors (density, rotational speed) on the formation of ADSC-spheroids were explored.

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Background: Endoplasmic reticulum stress exists within a tumor. Glucose-regulated protein 94 (GRP94) is a stress-induced chaperone protein involved in tumor development and progression. Its role in myeloma, colon cancer, and other tumors has been confirmed, but its role in lung cancer is unclear.

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Purpose: To investigate the effect of nicotine on Cal27 cell line in patients with tongue squamous cell carcinoma.

Methods: Tongue squamous cell carcinoma Cal27 cells were subcultured, and the logarithmic growth phase cells were selected and divided into blank control group, nicotine-treated group and α7 nicotinic acetylcholine receptor inhibition-treated group (α7nAChR inhibition group). Cells in the blank control group received no treatment; cells in nicotine group received nicotine treatment, and cells in α7nAChR inhibition group were treated nicotine combined with α-bungarotoxin (α-BTX).

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Carbon fluxes in a Haloxylon ammodendron plantation in the oasis-desert ecotone of Minqin was measured using an eddy covariance system. To provide scientific data for carbon source/sink assessment, we quantitatively analyzed the characteristics of CO flux and its driving factors in the growing season from May to October, 2018. The results showed that the trend of daily net carbon exchange in the growing season followed a symmetrical "U" shape curve.

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We investigated the relationship between head and neck squamous cell carcinoma (HNSCC) and the mRNA and protein expression levels of the circadian genes of the Period () family, and . Tissue sections of HNSCC and normal head and neck tissues from two patient cohorts from two different hospitals were collected to assess the mRNA and protein expressions of the three family genes using real-time quantitative PCR (RT-PCR) and immunohistochemistry (IHC). The clinicopathological features and disease prognosis for the latter cohort were analyzed through IHC and statistical methods.

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Objective: To evaluate the prevalence, pattern and risk factors of lymph node metastasis (LNM) for pathological T1 (pT1) esophageal cancer (EC).

Methods: The clinical data of 143 cases of pT1 patients who underwent esophagectomy and lymph node dissection during January 2011 and July 2016 were reviewed, including 120 male patients and 23 female patients with a median age of 60 years. The pattern of LNM was analyzed and the risk factors related to LNM were assessed by logistic regression analysis.

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Aims: The prognostic value of metastatic lymph node ratio (LNR) has been reported in some studies; however, there is no report on the prognostic significance of metastatic to negative lymph node ratio (MNLNR) in cancer patients. The aim of this study was to compare the prognostic value of pN, LNR and MNLNR on the survival of patients with esophageal squamous cell carcinoma (ESCC) after esophagectomy.

Methods: The data of 290 patients with ESCC after curative esophagectomy was retrospectively analyzed.

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Neuroblastomas (NB) are one of the most common extracranial solid tumors in children, and they frequently display high heterogeneity in the disease course. With ongoing research, more information regarding the genetic etiology and molecular mechanisms underlying these contrasting phenotypes is being uncovered. The proto-oncogene MYCN is amplified in approximately 20% of NB cases and is considered a indicator of poor prognosis and an indicator of high-risk NB.

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The present study was aimed to investigate the application of right thansthoracic Ivor-Lewis (IL), left transthoracic (LTT), and left thoracoabdominal (LTA) approach in Siewert type II adenocarcinoma of esophagogastric junction (AEG).The data of 196 patients with Siewert type II AEG received surgical resection in our cancer center between January 2014 and April 2016 was retrospectively analyzed. Finally, 136 patients met the inclusion criteria were enrolled in the study and divided into the IL (47 cases), LTT (51 cases), and LTA group (38 cases).

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Aims: To investigate the prognostic significance of body mass index (BMI) on the survival of patients with esophageal squamous cell carcinoma (ESCC) after esophagectomy.

Methods: Between 2005 and 2008, 291 patients with ESCC who met the inclusion criteria were included in the study. The BMI cut-off values were as follows: 18.

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Background: Adult hepatoblastoma is a very rare and aggressive neoplasm. The aim of this study was to review the cases of adult hepatoblastoma patients.

Methods: A search of all case reports about adult hepatoblastoma from 1958 to 2016 by medical database was performed.

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Surgery following neoadjuvant chemoradiotherapy (NCRT) is a common multidisciplinary treatment for resectable esophageal cancer (EC). After analyzing 12 randomized controlled trials (RCTs), we discuss the key issues of surgery in the management of resectable EC. Along with chemoradiotherapy, NCRT is recommended for patients with squamous cell carcinoma (SCC) and adenocarcinoma (AC), and most chemotherapy regimens are based on cisplatin, fluorouracil (FU), or both (CF).

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Accelerated atherosclerosis is the major cause of mortality in maintenance hemodialysis (MHD) patients, and endothelial injury associated with MHD might contribute strongly to pathogenesis. The current study was designed to explore possible associations between circulating endothelial cells (CECs) and intima-media thickness of common carotid artery (CCA-IMT) as an indicator of carotid atherosclerosis. Sixty-two MHD patients and 26 age- and sex-matched healthy volunteers were recruited.

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Objective: To investigate the correlation between extranodal metastasis (EM) and clinicopathologic features as well as the effect of EM on the prognosis in gastric cardia patients.

Methods: Retrospective analysis was performed for the 323 cases with histologically proven adenocarcinoma of gastric cardia who underwent curative resection from January 2000 to January 2007. There were 272 male patients and 51 female patients with their median age of 63 (22 to 85) years.

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We studied the effects of increasing the dialysate calcium concentration (DCa) to 1.75 mmol/L on controlling chronic kidney disease-mineral and bone disorder in Chinese patients on maintenance hemodialysis (MHD). We reviewed the data of MHD patients in one center (cohort 1) during prior 10 years and analyzed the risk factors of mortality and transference calcification (TC) in120 MHD patients surviving in 2003 (cohort 2).

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Objective: To compare the prognostic value of AJCC/UICC pN stage with metastatic lymph node ratio (MLR) and the prognostic difference between the tumor-node-metastasis (TNM) stage and tumor-ratio-metastasis (TRM) stage in patients with adenocarcinoma of the gastroesophageal junction.

Methods: Clinical data of 414 patients with adenocarcinoma of the gastroesophageal junction undergoing curative resection at the Tianjin Medical University Cancer Institute and Hospital from January 2000 to June 2007 were retrospectively reviewed. Spearman correlation analysis was performed to examine the correlations between pN, MLR and retrieved nodes.

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Background And Objectives: The purpose of this study is to estimate the effect of extranodal metastasis (EM) on recurrence and survival in patients with adenocarcinoma of the esophagogastric junction (AEG) after curative resection.

Methods: Clinical data from 284 node-positive AEG patients who underwent curative resection were reviewed. Univariate and multivariate analyses were conducted to elucidate the effect of EM on recurrence-free survival (RFS) and overall survival (OS).

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Splenic metastasis is generally not a common clinical event. However, metastasis to the spleen from adrenal pheochromocytoma is extremely rare and has not been reported in literature. This report presents a case of a 58 year-old male patient who developed spleen-only metastases in July 2007.

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Obesity is rapidly becoming pandemic and is associated with increased carcinogenesis, especially hepatocellular carcinoma (HCC). Adipose tissue is considered as an endocrine organ because of its capacity to secrete a variety of adipokines, such as leptin, adiponectin and resistin. Recently, adipokines have been demonstrated to be associated with kinds of chronic liver diseases including fibrosis, cirrhosis and carcinogenesis.

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Objective: The aim of this study was to define the clinical features and surgical treatment outcomes of patients with primary hepatic angiosarcoma.

Methods: Data of the 6 patients diagnosed with primary hepatic angiosarcoma in Tianjin Medical University Cancer Institute and Hospital from January 1999 to December 2005 were retrospectively reviewed.

Results: The median age of the patients was 49 years (range 45-78 years) with a male predominance.

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Aim:   To compare the surgical treatment outcomes between patients with colorectal liver metastases (CLM) and non-colorectal liver metastases (NCLM).

Methods:   The study population consisted of 132 patients undergoing hepatectomy at Tianjin Medical University Cancer Hospital between January 1996 and December 2008. Survival analyses were used to assess the differences in prognosis and survival between groups.

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Background: To determine whether the inferior outcome noted with triple-negative breast cancer (TNBC) reflects a higher risk population among patients with breast cancer liver metastases.

Methods: A total of 123 patients with breast cancer liver metastases diagnosed at Tianjin Medical University Cancer Hospital were included in this study. Breast cancer subtype was assigned using immunohistochemistry or fluorescence in situ hybridization: hormone receptor (HR) positive (+)/human epidermal growth factor receptor 2 (HER2) negative (-), HR+/HER2+, HR-/HER2+ and triple-negative subtype.

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Along with the development of hyperspectral remote sensing technology, hyperspectral imaging technology has been applied in the aspect of aviation and spaceflight, which is different from multispectral imaging, and with the band width of nanoscale spectral imaging the target continuously, the image resolution is very high. However, with the increasing number of band, spectral data quantity will be more and more, and these data storage and transmission is the problem that the authors must face. Along with the development of wavelet compression technology, in field of image compression, many people adopted and improved EZW, the present paper used the method in hyperspectral spatial dimension compression, but does not involved the spectrum dimension compression.

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The classification and de-aliasing methods with respect to multi-spectra and hyper-spectra have been widely studied in recent years. And both K-mean clustering algorithm and spectral similarity algorithm are familiar classification methods. The present paper improved the K-mean clustering algorithm by using spectral similarity match algorithm to perform a new spectral classification algorithm.

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Purpose: To evaluate the efficiency of combined treatment of transcatheter arterial chemoembolization (TACE) and systemic chemotherapy (SC) for liver-only metastases from breast cancer after mastectomy.

Methods: We compared the outcomes of 44 patients who underwent combined treatment of TACE and systemic chemotherapy (TSC) with those of 43 patients who underwent systemic chemotherapy (SC).

Results: The median follow-up from the diagnosis of liver metastases was 29 months (range, 0-89 months).

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