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Qi zhou

Qiufang Gong, Yu Wang, Qi Hu, Jigang Zhou, Renfei Feng, Paul N Duchesne, Peng Zhang, Fengjiao Chen, Na Han, Yafei Li, Chuanhong Jin, Yanguang Li, Shuit-Tong Lee
Earlier research has been primarily focused on WC as one of the most promising earth-abundant electrocatalysts for hydrogen evolution reaction (HER), whereas the other compound in this carbide family-W2C-has received far less attention. Our theoretical calculations suggest that such a focus is misplaced and W2C is potentially more HER-active than WC. Nevertheless, the preparation of phase pure and sintering-free W2C nanostructures represents a formidable challenge. Here we develop an improved carburization method and successfully prepare ultrasmall and phase-pure W2C nanoparticles...
October 18, 2016: Nature Communications
Shi-Fa Zhang, Yan Zhou, Kai-Jing Zhang, Jia-Jie Luan, Shi-Mei Qi
OBJECTIVE: To investigate the effect of Nogo-66 receptor (NgR) silencing with specific small interfering RNA (siRNA) on brain injury repair in preterm rats with brain injury caused by intrauterine infection and related mechanism of action. METHODS: The pregnant Sprague-Dawley rats (with a gestational age of 15 days) were selected, and premature delivery was induced by RU486 or lipopolysaccharide (LPS). The preterm rats delivered by those treated with RU486 were selected as the control group...
October 2016: Zhongguo Dang Dai Er Ke za Zhi, Chinese Journal of Contemporary Pediatrics
Yun Qian, Yiwen Sang, Frederick X C Wang, Bo Hong, Qi Wang, Xinhui Zhou, Tianhao Weng, Zhigang Wu, Min Zheng, Hong Zhang, Hangping Yao
Liver metastasis development in pancreatic cancer patients is common and confers a poor prognosis. Clinical relevance of biomarker analysis in metastatic tissue is necessary. B7-H4 has an inhibitory effect on T cell mediated response and may be involved in tumor development. Although B7-H4 expression has been detected in pancreatic cancer, its expression in liver metastases from pancreatic cancer is still unknown. In this study, overall 43 pancreatic cancer liver metastases (with matched primaries in 15/43 cases) and 57 pancreatic cancer cases without liver metastases or other distant metastases were analyzed for their expression of B7-H4 by immunohistochemistry...
October 14, 2016: Oncotarget
Jia-Jie Hao, De-Chen Lin, Huy Q Dinh, Anand Mayakonda, Yan-Yi Jiang, Chen Chang, Ye Jiang, Chen-Chen Lu, Zhi-Zhou Shi, Xin Xu, Yu Zhang, Yan Cai, Jin-Wu Wang, Qi-Min Zhan, Wen-Qiang Wei, Benjamin P Berman, Ming-Rong Wang, H Phillip Koeffler
Esophageal squamous cell carcinoma (ESCC) is among the most common malignancies, but little is known about its spatial intratumoral heterogeneity (ITH) and temporal clonal evolutionary processes. To address this, we performed multiregion whole-exome sequencing on 51 tumor regions from 13 ESCC cases and multiregion global methylation profiling for 3 of these 13 cases. We found an average of 35.8% heterogeneous somatic mutations with strong evidence of ITH. Half of the driver mutations located on the branches of tumor phylogenetic trees targeted oncogenes, including PIK3CA, NFE2L2 and MTOR, among others...
October 17, 2016: Nature Genetics
Heng-Jing Hu, Zhi-Sheng Jiang, Sheng-Hua Zhou, Qi-Ming Liu
The effects of hydrogen sulfide (H2S) and the nuclear factor κB (NF-κB) signaling pathway in angiotensin II (AngII)-induced endothelin-1 (ET-1) expression and subsequent cytotoxicity remain unclear. The present study aimed to investigate the hypothesis that H2S protects human umbilical vein endothelial cells (HUVECs) against AngII‑stimulated ET‑1 generation and subsequent cytotoxicity‑induced endoplasmic reticulum stress via the NF‑κB signaling pathway. The results of the present study demonstrated that AngII significantly upregulated the expression levels of ET‑1, glucose‑regulated protein 78, CCAAT‑enhancer‑binding protein homologous protein, phosphorylated (p)‑p65 and inducible nitric oxide synthase; stimulated nitric oxide production; suppressed the expression and activity of cystathionine-γ-lyase (CSE), a H2S synthetase; and decreased cell viability...
October 12, 2016: Molecular Medicine Reports
Di Che, Ti Zhou, Yuqing Lan, Jinye Xie, Haijun Gong, Chaoyang Li, Juan Feng, Honghai Hong, Weiwei Qi, Caiqi Ma, Qiyuan Wu, Xia Yang, Guoquan Gao
It has been reported that epithelial-mesenchymal transition (EMT) mediates multiple physiological and pathological processes. However, the occurrence and the pathogenic role of high glucose-induced EMT in retinal pigment epithelial cells (RPE cells) is unknown. The aim of this study was to examine the effects of high glucose on EMT in RPE cells. Cultured RPE cells were exposed to 25 mM D-glucose. A vector encoding the Snail gene and siRNA targeting Snail (Snail siRNA) were transfected into the cells to induce the overexpression or silencing of Snail, respectively...
October 6, 2016: International Journal of Molecular Medicine
Chenfang Zhu, Xiaoliang Qi, Xin Zhou, Xin Nie, Yan Gu
In our previous studies, sulfatase 2 (Sulf2) was found to upregulate vascular endothelial growth factor-D (VEGF-D) expression in breast cancer. As VEGF-D plays an important role in lymphangiogenesis, we hypothesized that Sulf2 facilitates lymphangiogenesis in breast cancer by regulating VEGF-D. To evaluate the functions of Sulf2 on lymphangiogenesis in breast cancer, proliferation, apoptosis, cell cycle, cell mobility and tube-formation of lymphatic endothelial cells (LECs) were measured in vitro. Lymphangiogenesis in nude mouse ears and breast cancer xenografts were examined in vivo...
October 4, 2016: Oncology Reports
Yan-Ni Li, Huan Ma, Lu Zhou, Jie Zhang, Li-Ping Guo, Shu-Qian Li, Yi-Qi Qian, Bang-Mao Wang
BACKGROUND: The long-term outcomes of patients with autoimmune hepatitis (AIH) given the immunosuppressive treatment are considered to be preferable. However, little is known about the response of AIH patients with cirrhosis to immunosuppressive treatment. We assessed the effects of immunosuppressive therapy in Chinese AIH patients with cirrhosis from a tertiary hospital. METHODS: Patients with a clinical diagnosis of AIH January 2000 and December 2015 were retrospectively reviewed...
2016: Chinese Medical Journal
Ying Zhang, Chaojie Zhang, Xuan Zhang, Leiyu Feng, Yongmei Li, Qi Zhou
Alkaline treatment with steel slag and NaOH addition were investigated under different pH conditions for the fermentation of waste activated sludge. Better performance was achieved in steel slag addition scenarios for both sludge hydrolysis and acidification. More solubilization of organic matters and much production of higher VFA (volatile fatty acid) in a shorter time can be achieved at pH10 when adjusted by steel slag. Higher enzyme activities were also observed in steel slag addition scenarios under the same pH conditions...
October 2016: Journal of Environmental Sciences (China)
Shu-Jing Yu, Rong Jiang, Ying Z Mazzu, Cai-Bing Wei, Zong-Liang Sun, Yu-Zhen Zhang, Lian-Di Zhou, Qi-Hui Zhang
Drug-induced liver injury (DILI) is the most common cause of acute liver failure. Disruption of the Th17/Treg balance can lead to hepatic inflammation, which causes the main symptoms of DILI. Here we investigate the protective mechanisms of (-)-Epigallocatechin-3-gallate (EGCG) on triptolide (TP)-induced DILI that shows the Th17/Treg imbalance. Pretreatment with EGCG (5[Formula: see text]mg/kg) for 10 days before TP (0.5[Formula: see text]mg/kg) administration in mice significantly reduced the increased alanine aminotransferase (ALT) level ([Formula: see text]) induced by TP treatment...
2016: American Journal of Chinese Medicine
Qi Fan, Yonglong Zhang, Yanfeng Liu, Jin Yang, Dan Li, Yating Tang, Lei Cai, Zhennan Zhao, Peng Zhou, Yi Lu
BACKGROUND/AIMS: Oxidative stress plays a critical role in the development of cataracts, and glutaredoxins (Grxs) play a major protective role against oxidative stress in the lens. This study aimed to reveal the global regulatory network of Grx1. METHODS: Stable isotope labeling by amino acids in cell culture (SILAC) was used in a proteome-wide quantitative approach to identify the Grx1 regulatory signaling cascades at a subcellular resolution in response to oxidative stress...
October 17, 2016: Cellular Physiology and Biochemistry
Yuan-Yuan Li, Zhen Liu, Fei-Yan Qi, Xin Zhou, Peng Shi
Molecular basis for mammalian echolocation has been receiving much concerns. Recent findings on the parallel evolution of prestin sequences among echolocating bats and toothed whales suggest that adaptations for high-frequency hearing have occurred during the evolution of echolocation. Here, we report that although the species tree for echolocating bats emitting echolocation calls with frequency modulated (FM) sweeps is paraphyletic, prestin exhibits similar functional changes between FM bats. Site-directed mutagenesis shows that the amino acid 308S in FM bats is responsible for the similar functional changes of prestin We strongly support that the occurrence of serine at position 308 is a case of hemiplasy, caused by incomplete lineage sorting of an ancestral polymorphism...
October 15, 2016: Molecular Biology and Evolution
Xiao-Zhou Qi, Dong-Liang Li, Xiao Tu, Chen-Guang Song, Fei Ling, Gao-Xue Wang
Dexamethasone, a known immunosuppressant, can inhibit the immune response and increase the amount of pathogen in body, but the role of dexamethasone affecting susceptibility of crucian carp (Carassius auratus) to pathogen is unclear. The effects of dexamethasone on susceptibility of crucian carp to Aeromonas hydrophila were investigated in this study. The fish were divided into four groups randomly and injected intraperitoneally by dexamethasone for 0 day (group D), 3 days (group C), 6 days (group B), and 9 days (group A), respectively...
October 12, 2016: Fish & Shellfish Immunology
Xiao-Yan Yi, Yao Wang, Qi-Fu Li, Rong Li, Shu-Min Yang, Guo-Qing Zhou, Zhi-Hong Wang
BACKGROUND: Propylthiouracil is the most common drug used to treat hyperthyroidism. However, this drug could cause a severe disease, antineutrophilic cytoplasmic antibody-associated vasculitis (AAV), which was usually misdiagnosed. METHODS: We reported a 60-year-old woman of propylthiouracil-induced AAV manifested as blood coagulation disorders. The patient was admitted because of hyperthyroidism and leukopenia. At the time of hospitalization, she suffered from dry cough, erythema and knee joints ache, and gradually became febrile...
October 2016: Medicine (Baltimore)
Qi Kang, XiaoShuang Chen, SiSi Li, MengChu Zhou
Under-sampling is a popular data preprocessing method in dealing with class imbalance problems, with the purposes of balancing datasets to achieve a high classification rate and avoiding the bias toward majority class examples. It always uses full minority data in a training dataset. However, some noisy minority examples may reduce the performance of classifiers. In this paper, a new under-sampling scheme is proposed by incorporating a noise filter before executing resampling. In order to verify the efficiency, this scheme is implemented based on four popular under-sampling methods, i...
October 12, 2016: IEEE Transactions on Cybernetics
Peizhu Tan, Huan Liang, Junhui Nie, Yan Diao, Qi He, Baoyu Hou, Tingting Zhao, Hui Huang, Yanze Li, Xu Gao, Lingyun Zhou, Ying Liu
BACKGROUND: Alcoholic fatty liver disease (AFLD) defines an important stage in the progression of alcoholic liver disease (ALD), which is a major cause of morbidity and mortality worldwide. OBJECTIVE: To establish a mouse model of AFLD. METHODS: Male C57BL/6 mice were divided into the following two groups: (i) a control group, which was allowed free access to food and water and (ii) an alcohol-treated group, which was administered a 15% (v/v) alcohol solution instead of water...
October 14, 2016: American Journal of Drug and Alcohol Abuse
Lin Li, Xiaotian Qi, Weili Sun, Hisham Abdel-Azim, Siyue Lou, Hong Zhu, Nemani V Prasadarao, Alice Zhou, Hiroyuki Shimada, Koichi Shudo, Yong-Mi Kim, Sajad Khazal, Qiaojun He, David Warburton, Lingtao Wu
Neutrophils generated by granulocyte colony-stimulating factor (GCSF) are functionally immature and, consequently, cannot effectively reduce infection and infection-related mortality in cancer chemotherapy-induced neutropenia (CCIN). Am80, a retinoic acid (RA) agonist that enhances granulocytic differentiation by selectively activating transcription factor RA receptor alpha (RARα), alternatively promotes RA-target gene expression. We found that in normal and malignant primary human hematopoietic specimens, Am80-GCSF combination coordinated proliferation with differentiation to develop complement receptor-3 (CR3)-dependent neutrophil innate immunity, through altering transcription of RA-target genes RARβ2, C/EBPε, CD66, CD11b, and CD18 This led to generation of functional neutrophils capable of fighting infection, whereas neutralizing neutrophil innate immunity with anti-CD18 antibody abolished neutrophil bactericidal activities induced by Am80-GCSF Further, Am80-GCSF synergy was evaluated using six different dose-schedule-infection mouse CCIN models...
October 13, 2016: EMBO Molecular Medicine
Xiang-Sheng Zhang, Qi Wu, Ling-Yun Wu, Zhen-Nan Ye, Tian-Wei Jiang, Wei Li, Zong Zhuang, Meng-Liang Zhou, Xin Zhang, Chun-Hua Hang
Increasing evidence indicates that sirtuin 1 (SIRT1) is implicated in a wide range of cellular functions, such as oxidative stress, inflammation and apoptosis. The aim of this study was to investigate the change of SIRT1 in the brain after subarachnoid hemorrhage (SAH) and its role on SAH-induced early brain injury (EBI). In the first set of experiments, rats were randomly divided into sham group and SAH groups at 2, 6, 12, 24, 48 and 72 h. The expression of SIRT1 was evaluated by western blot analysis, immunohistochemistry and immunofluorescence...
October 13, 2016: Cell Death & Disease
Xiao-Qing Wang, Zhou-Na Li, Qi-Ming Wang, Zhonggao Gao, Zhe-Hu Jin
Keloids were characterized by excessive growth of fibrous tissues, and shared several pathological characteristics with cancer. They did put physical and emotional stress on patients in that keloids could badly change appearance of patients. N-(4-hydroxyphenyl) retinamide (4HPR) showed cytotoxic activity on a wide variety of invasive-growth cells. Our work was aim to prepare N-(4-hydroxyphenyl) retinamide-loaded lipid microbubbles (4HPR-LM) combined with ultrasound for anti-keloid therapy. 4HPR-loaded liposomes (4HPR-L) were first prepared by film evaporation method, and then 4HPR-LM were manufactured by mixing 4HPR-L and perfluoropentane (PFP) with ultrasonic cavitation method...
October 13, 2016: Journal of Liposome Research
Yuan Zhao, Meng-Lei Huan, Miao Liu, Ying Cheng, Yang Sun, Han Cui, Dao-Zhou Liu, Qi-Bing Mei, Si-Yuan Zhou
With the extensive application of doxorubicin (DOX), DOX resistance has become one of the main obstacles to the effective treatment of breast cancer. In this paper, DOX and resveratrol (RES) were co-encapsulated in a modified PLGA nanoparticle (NPS) to overcome the DOX resistance. CLSM results indicated that DOX and RES were simultaneously delivered into the nucleus of DOX-resistant human breast cancer cells by DOX/RES-loaded NPS. Consequently, DOX/RES-loaded NPS showed significant cytotoxicity on MDA-MB-231/ADR cells and MCF-7/ADR cells...
October 12, 2016: Scientific Reports
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