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"Feng Zhang"

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https://www.readbyqxmd.com/read/29150749/study-on-the-interaction-of-paeoniflorin-with-human-serum-albumin-hsa-by-spectroscopic-and-molecular-docking-techniques
#1
Liang Xu, Yan-Xi Hu, Yan-Cheng Li, Yu-Feng Liu, Li Zhang, Hai-Xin Ai, Hong-Sheng Liu
The interaction of paeoniflorin with human serum albumin (HSA) was investigated using fluorescence, UV-vis absorption, circular dichroism (CD) spectra and molecular docking techniques under simulative physiological conditions. The results clarified that the fluorescence quenching of HSA by paeoniflorin was a static quenching process and energy transfer as a result of a newly formed complex (1:1). Paeoniflorin spontaneously bound to HSA in site I (subdomain IIA), which was primarily driven by hydrophobic forces and hydrogen bonds (ΔH° = - 9...
November 17, 2017: Chemistry Central Journal
https://www.readbyqxmd.com/read/29149399/overcoming-hiv-stigma-a-qualitative-analysis-of-hiv-cure-research-and-stigma-among-men-who-have-sex-with-men-living-with-hiv
#2
Feng Wu, Alice Zhang, Andrew Babbitt, Qingyan Ma, Nir Eyal, Xin Pan, Weiping Cai, Fengyu Hu, Yu Cheng, Joseph D Tucker
Despite global progress in HIV stigma reduction, persistent HIV stigma thwarts effective HIV service delivery. Advances in HIV biomedical research toward a cure may shift perceptions of people living with HIV and HIV stigma. The purpose of this study was to examine how men who have sex with men (MSM) living with HIV in Guangzhou, China perceive HIV cure research and its potential impact on MSM and HIV stigma. We conducted in-depth interviews with 26 MSM living with HIV about their perceptions of HIV cure research and the potential impact of an HIV cure on their lives...
November 17, 2017: Archives of Sexual Behavior
https://www.readbyqxmd.com/read/29145240/gastrointestinal-stromal-tumor-gist-with-liver-metastases-an-18-year-experience-from-the-gist-cooperation-group-in-north-china
#3
Yi-Nan Shi, Yong Li, Li-Ping Wang, Zhen-Hua Wang, Xiao-Bo Liang, Han Liang, Li Zhang, Bin Li, Li-Qiao Fan, Qun Zhao, Zhi-Xue Ma, Xue-Feng Zhao, Zhi-Dong Zhang, Yu Liu, Bi-Bo Tan, Dong Wang, Li-Li Wang, Ying-Jie Hao, Nan Jia
Approximately 40% to 50% of gastrointestinal stromal tumor (GIST) patients will have recurrence or metastases after resection of the primary lesion, and the most common affected sites will be liver and peritoneum. Imatinib has been considered as the first-line therapy of metastatic GIST. Surgery for metastases is proposed when possible. Furthermore, there are controversies concerning hepatic resection and systemic tyrosin kinase inhibitors (TKIs). The therapeutic conditions and long-term outcome of GIST patients with liver metastases in northern China remain unknown...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29143041/joint-experimental-and-theoretical-studies-of-the-surprising-stability-of-the-aryl-pentazole-upon-noncovalent-binding-to-%C3%AE-cyclodextrin
#4
Yu-Zhang Yang, Xiao-Feng Liu, Ru-Bo Zhang, Si-Ping Pang
Herein, binding of the β-cyclodextrin (β-CD) host to the unstable aryl pentazole guest has been confirmed experimentally and theoretically. After the confinement of aryl pentazole, electron density reorganization was studied by M06-2X dispersion-corrected DFT and further reflected in the characteristic shift in the NMR spectra. Among the host-guest complexes, the inclusion complex is favored with the phenyl ring expectedly encapsulated within the cavity through noncovalent interactions such as hydrogen bonding, C-Hπ, and the special Csp(2)-HH-Csp(3) bonding discovered by the NBO, QTAIM, and NCI-RDG theories...
November 16, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/29141810/levels-of-peripheral-th17-cells-and-serum-th17-related-cytokines-in-patients-with-multiple-sclerosis-a-meta-analysis
#5
REVIEW
Yu-Feng Li, Sheng-Xiao Zhang, Xiao-Wen Ma, Yu-Long Xue, Chong Gao, Xin-Yi Li
BACKGROUND: Multiple reports have described the proportion of Th17 cells in peripheral blood and serum levels of Th17-related cytokines in patients with multiple sclerosis (MS). To clarify the status of Th17 cells and Th17-related cytokines in MS patients, we did a meta-analysis of the results published previously to assess the levels of peripheral Th17 cells and serum Th17-related cytokines in patients with MS. METHODS: We searched Embase, PubMed, Cochrane, Web of Knowledge, FDA...
November 2017: Multiple Sclerosis and related Disorders
https://www.readbyqxmd.com/read/29138840/low-dosage-of-arsenic-trioxide-inhibits-vasculogenic-mimicry-in-hepatoblastoma-without-cell-apoptosis
#6
Feng Zhang, Chun-Mei Zhang, Shu Li, Kun-Kun Wang, Bin-Bin Guo, Yao Fu, Lu-Yang Liu, Yu Zhang, Hai-Yu Jiang, Chang-Jun Wu
Hepatoblastoma (HB) is the most common type of pediatric liver malignancy, which predominantly occurs in young children (aged <5 years), and continues to be a therapeutic challenge in terms of metastasis and drug resistance. As a new pattern of tumor blood supply, vasculogenic mimicry (VM) is a channel structure lined by tumor cells rather than endothelial cells, which contribute to angiogenesis. VM occurs in a variety of solid tumor types, including liver cancer, such as hepatocellular carcinoma. The aim of the present study was to elucidate the effect of arsenic trioxide (As2O3) on VM...
November 14, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29137413/abnormal-neural-activities-of-directional-brain-networks-in-patients-with-long-term-bilateral-hearing-loss
#7
Long-Chun Xu, Gang Zhang, Yue Zou, Min-Feng Zhang, Dong-Sheng Zhang, Hua Ma, Wen-Bo Zhao, Guang-Yu Zhang
The objective of the study is to provide some implications for rehabilitation of hearing impairment by investigating changes of neural activities of directional brain networks in patients with long-term bilateral hearing loss. Firstly, we implemented neuropsychological tests of 21 subjects (11 patients with long-term bilateral hearing loss, and 10 subjects with normal hearing), and these tests revealed significant differences between the deaf group and the controls. Then we constructed the individual specific virtual brain based on functional magnetic resonance data of participants by utilizing effective connectivity and multivariate regression methods...
October 13, 2017: Oncotarget
https://www.readbyqxmd.com/read/29137346/safety-of-the-neprilysin-renin-angiotensin-system-inhibitor-lcz696
#8
REVIEW
Bo Li, Yunhe Zhao, Bo Yin, Mengfei Helian, Xinmei Wang, Feng Chen, Hongxia Zhang, Hui Sun, Bin Meng, Fengshuang An
Objectives: The combined neprilysin/rennin-angiotensin system inhibitor sacubitril/valsartan (LCZ696) has shown its superiority over ACEI/ARB therapy. In view of the existing concern of its adverse effects, we aimed to provide evidence of the safety of the new drug. Results: A total of 6 randomized trials with 11,821 subjects were included in this analysis. No significant differences were found in any adverse effects between LCZ696 and ACEI/ARB or placebo groups...
October 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/29135031/comparative-proteomics-illustrates-the-molecular-mechanism-of-potato-solanum-tuberosum-l-tuberization-inhibited-by-exogenous-gibberellins-in-vitro
#9
Lixiang Cheng, Yuping Wang, Yueshan Liu, Qingquan Zhang, Huihui Gao, Zhang Feng
Among the multiple environmental signals and hormonal factors regulating potato tuberization, gibberellins (GAs) are important components of the signaling pathways in these processes. To understand the GAs-signaling response mechanism of potato tuberization, a comparative proteomics approach was applied to analyze proteome change of potato tuberization in vitro subjected to a range of exogenous GA3 treatments (0, 0.01, 0.1 and 1.0 μΜ) using two-dimensional gel electrophoresis. Quantitative image analyses showed that a total of 37 protein spots have their abundance significantly altered more than 2-fold...
November 14, 2017: Physiologia Plantarum
https://www.readbyqxmd.com/read/29132415/acupuncture-for-postprandial-distress-syndrome-apds-study-protocol-for-a-randomized-controlled-trial
#10
Jing-Wen Yang, Li-Wen Zhang, Guang-Xia Shi, Yi Du, Jun Wang, Jing-Jie Zhao, Yan Cao, Jian-Feng Tu, Shuai Zhang, Cheng Tan, San-San Chen, Cun-Zhi Liu
BACKGROUND: Postprandial distress syndrome (PDS) is referred to as meal-related functional dyspepsia (FD) and causes a reduced quality of life (QoL) for patients. Several randomized controlled trials (RCTs) have suggested that acupuncture is an effective treatment for FD, but few studies were particularly for PDS. This pilot study was designed to determine the feasibility and efficacy of acupuncture in patients with PDS characterized by postprandial fullness and early satiation according to the Rome III criteria...
November 13, 2017: Trials
https://www.readbyqxmd.com/read/29131199/positive-dwell-time-algorithm-with-minimum-equal-extra-material-removal-in-deterministic-optical-surfacing-technology
#11
Longxiang Li, Donglin Xue, Weijie Deng, Xu Wang, Yang Bai, Feng Zhang, Xuejun Zhang
In deterministic computer-controlled optical surfacing, accurate dwell time execution by computer numeric control machines is crucial in guaranteeing a high-convergence ratio for the optical surface error. It is necessary to consider the machine dynamics limitations in the numerical dwell time algorithms. In this paper, these constraints on dwell time distribution are analyzed, and a model of the equal extra material removal is established. A positive dwell time algorithm with minimum equal extra material removal is developed...
November 10, 2017: Applied Optics
https://www.readbyqxmd.com/read/29130662/-the-role-of-bone-morphogenic-protein-4-in-the-progression-of-vein-graft-hyperplastic-remodeling-under-hyperglycemic-condition
#12
Deng-Feng Fang, Hong-Wei Zhang, Jun Gu, Kang-Jun Fan, Huai-Min Liang, Jia-Yu Shen, Er-Yong Zhang, Jia Hu
OBJECTIVE: This study was designed to assess the vessel wall characteristics and the expression levels of bone morphogenic protein4(BMP4) and proliferating cell antigen Ki67 in vein grafts harvested from diabetic rats,and to investigate the role of BMP4 in progression of vein graft hyperplastic remodeling under hyperglycemic condition. METHODS: 48 male SpragueDawky rats [body mass (194±16) g] aged 8 weeks were randomly divided into diabetes mellitus (DM) group ( n=24) and nondiabetes mellitus (NDM) group ( n=24)...
September 2017: Sichuan da Xue Xue Bao. Yi Xue Ban, Journal of Sichuan University. Medical Science Edition
https://www.readbyqxmd.com/read/29126261/heme-promotes-transcriptional-and-demethylase-activities-of-gis1-a-member-of-the-histone-demethylase-jmjd2-kdm4-family
#13
Sneha Lal, Jonathan M Comer, Purna C Konduri, Ajit Shah, Tianyuan Wang, Anthony Lewis, Grant Shoffner, Feng Guo, Li Zhang
The yeast Gis1 protein is a transcriptional regulator belonging to the JMJD2/KDM4 subfamily of demethylases that contain a JmjC domain, which are highly conserved from yeast to humans. They have important functions in histone methylation, cellular signaling and tumorigenesis. Besides serving as a cofactor in many proteins, heme is known to directly regulate the activities of proteins ranging from transcriptional regulators to potassium channels. Here, we report a novel mechanism governing heme regulation of Gis1 transcriptional and histone demethylase activities...
November 6, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/29126071/%C3%AE-lipoic-acid-improves-abnormal-behavior-by-mitigation-of-oxidative-stress-inflammation-ferroptosis-and-tauopathy-in-p301s-tau-transgenic-mice
#14
Yan-Hui Zhang, Da-Wei Wang, Shuang-Feng Xu, Shuai Zhang, Yong-Gang Fan, Ying-Ying Yang, Shi-Qi Guo, Shan Wang, Tian Guo, Zhan-You Wang, Chuang Guo
Alzheimer's disease (AD) is the most common neurodegenerative disease and is characterized by neurofibrillary tangles (NFTs) composed of Tau protein. α-Lipoic acid (LA) has been found to stabilize the cognitive function of AD patients, and animal study findings have confirmed its anti-amyloidogenic properties. However, the underlying mechanisms remain unclear, especially with respect to the ability of LA to control Tau pathology and neuronal damage. Here, we found that LA supplementation effectively inhibited the hyperphosphorylation of Tau at several AD-related sites, accompanied by reduced cognitive decline in P301S Tau transgenic mice...
November 7, 2017: Redox Biology
https://www.readbyqxmd.com/read/29123168/clinical-parameters-and-gut-microbiome-changes-before-and-after-surgery-in-thoracic-aortic-dissection-in-patients-with-gastrointestinal-complications
#15
Shuai Zheng, Shulin Shao, Zhiyu Qiao, Xue Chen, Chunmei Piao, Ying Yu, Feng Gao, Jie Zhang, Jie Du
Thoracic aortic dissection (TAAD) is one of the most common types of aortic diseases. Although surgery remains the main method of treatment, the high rate of postoperative gastrointestinal complications significantly influences the effects of surgery and the recovery process. Moreover, the mechanisms underlying this disease remain unclear. To address these problems, we examined changes in the gut microbiota in 40 thoracic aortic dissection patients with abdominal complications after surgery. Levels of white blood cells (WBC), neutrophile granulocytes (NE), alanine aminotransferase (ALT), and aspartate aminotransferase (AST) were higher in all patients after surgery...
November 9, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29122619/aurora-a-functional-single-nucleotide-polymorphism-snp-correlates-with-clinical-outcome-in-patients-with-advanced-solid-tumors-treated-with-alisertib-an-investigational-aurora-a-kinase-inhibitor
#16
Huifeng Niu, Hyunjin Shin, Feng Gao, Jacob Zhang, Brittany Bahamon, Hadi Danaee, Bohuslav Melichar, Russell J Schilder, Robert L Coleman, Gerald Falchook, Antoine Adenis, Kian Behbakht, Angela DeMichele, Elizabeth Claire Dees, Kimberly Perez, Ursula Matulonis, Piotr Sawrycki, Dirk Huebner, Jeffrey Ecsedy
BACKGROUND: Alisertib (MLN8237) is an investigational, oral, selective Aurora A kinase inhibitor. Aurora A contains two functional single nucleotide polymorphisms (SNPs; codon 31 [F/I] and codon 57 [V/I]) that lead to functional changes. This study investigated the prognostic and predictive significance of these SNPs. METHODS: This study evaluated associations between Aurora A SNPs and overall survival (OS) in The Cancer Genome Atlas (TCGA) database. The Aurora A SNPs were also evaluated as predictive biomarkers for clinical outcomes to alisertib in two phase 2 studies (NCT01045421 and NCT01091428)...
October 16, 2017: EBioMedicine
https://www.readbyqxmd.com/read/29116158/optical-mapping-of-the-dominant-frequency-of-brain-signal-oscillations-in-motor-systems
#17
Feng-Mei Lu, Yi-Feng Wang, Juan Zhang, Hua-Fu Chen, Zhen Yuan
Recent neuroimaging studies revealed that the dominant frequency of neural oscillations is brain-region-specific and can vary with frequency-specific reorganization of brain networks during cognition. In this study, we examined the dominant frequency in low-frequency neural oscillations represented by oxygenated hemoglobin measurements after the hemodynamic response function (HRF) deconvolution. Twenty-nine healthy college subjects were recruited to perform a serial finger tapping task at the frequency of 0...
November 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29115588/limb-remote-ischemic-post%C3%A2-conditioning-reduces-injury-and-improves-long%C3%A2-term-behavioral-recovery-in-rats-following-subarachnoid-hemorrhage-possible-involvement-of-the-autophagic-process
#18
Xiang Hu, Tao Lv, Shao-Feng Yang, Xiao-Hua Zhang, Yi-Feng Miao
Hemorrhage‑related neurologic injury is a primary cause of disability and mortality following subarachnoid hemorrhage (SAH). The aim of the present study was to investigate the potential neuroprotective effect and the possible role of autophagy in limb remote ischemic post‑conditioning (RIPostC) using an endovascular puncture rat model of SAH. RIPostC was induced by three cycles of occlusion (10 min) and release (10 min) in the bilateral femoral artery using an aneurysm clip. Early RIPostC began immediately following SAH, delayed RIPostC began following a 30 min delay and the repeated RIPostC group underwent the protocol every day for 3 days...
October 24, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29113342/overexpression-of-microrna-132-enhances-the-radiosensitivity-of-cervical-cancer-cells-by-down-regulating-bmi-1
#19
Gui-Feng Liu, Shu-Hua Zhang, Xue-Feng Li, Li-Yan Cao, Zhan-Zhao Fu, Shao-Nan Yu
We examined the effects of microRNA-132 (miR-132) on Bmi-1 expression and radiosensitivity in HeLa, SiHa, and C33A cervical cancer (CC) cells and 104 CC patients. MiR-132 expression was decreased and Bmi-1 expression was increased in tumor tissues compared to adjacent normal tissues and in radiotherapy-resistant patients compared to radiotherapy-sensitive patients. MiR-132 expression and Bmi-1 mRNA expression were also negatively correlated in tumor tissues. HeLa, SiHa, and C33A cells were divided into blank, miR-132 negative control (NC), miR-132 inhibitor, miR-132 mimics, siBmi-1, and miR-132 inhibitor + siBmi-1 groups, after which expression of miR-132 and Bmi-1, and the interaction between them and cell survival, proliferation, and apoptosis were examined...
October 6, 2017: Oncotarget
https://www.readbyqxmd.com/read/29111745/self-assembled-3d-hierarchical-copper-hydroxyphosphate-modified-by-the-oxidation-of-copper-foil-as-a-recyclable-wide-wavelength-photocatalyst
#20
Wenling Jiao, Yifeng Cheng, Jie Zhang, Renchao Che
In this work, three-dimensional flower-like and petal-like copper hydroxyphosphate Cu5(OH)4(PO4)2 (CHP) based on the self-assembly of numerous nanosheets has been successfully fabricated on a copper foil by a mild one-pot wet-chemical method without ligand assistance. This research contributes to the development of the method to change the morphology of the CHP active material by varying the degree of substrate oxidation. The two different CHP architectures were used to photocatalytically degrade rhodamine 6G (Rh 6G) under solar light, which can absorb wide-range light wavelength from the UV to the near-infrared region...
November 15, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
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