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Xiaoling Wang

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https://www.readbyqxmd.com/read/27895462/effects-of-resveratrol-on-p-glycoprotein-and-cytochrome-p450-3a-in-vitro-and-on-pharmacokinetics-of-oral-saquinavir-in-rats
#1
Jiapeng Li, Yang Liu, Jingru Zhang, Xiaotong Yu, Xiaoling Wang, Libo Zhao
BACKGROUND: The intestinal cytochrome P450 3A (CYP 3A) and P-glycoprotein (P-gp) present a barrier to the oral absorption of saquinavir (SQV). Resveratrol (RESV) has been indicated to have modulatory effects on P-gp and CYP 3A. Therefore, this study was to investigate the effects of RESV on P-gp and CYP 3A activities in vitro and in vivo on oral SQV pharmacokinetics in rats. METHODS: In vitro, intestinal microsomes were used to evaluate RESV effect on CYP 3A-mediated metabolism of SQV; MDR1-expressing Madin-Darby canine kidney (MDCKII-MDR1) cells were employed to assess the impact of RESV on P-gp-mediated efflux of SQV...
2016: Drug Design, Development and Therapy
https://www.readbyqxmd.com/read/27895202/the-lbd12-1-transcription-factor-suppresses-apical-meristem-size-by-repressing-argonaute-10-expression
#2
Weiwei Ma, Fuqing Wu, Peike Sheng, Xiaole Wang, Zhe Zhang, Kunneng Zhou, Huan Zhang, Jinlong Hu, Qibing Lin, Zhijun Cheng, Jiulin Wang, Shanshan Zhu, Xin Zhang, Xiuping Guo, Haiyang Wang, Chuanyin Wu, Jianmin Wan
The shoot apical meristem (SAM) consists of a population of multipotent cells that generate all aerial structures and regenerates itself. SAM maintenance and lateral organ development are regulated by several complex signaling pathways, in which the Argonaute gene mediated pathway plays a key role. One Argonaute gene, AGO10, functions as a miRNA locker that attenuates miR165/166 activity and positively regulates shoot apical meristem development, but little is known about when and how AGO10 is regulated at the transcriptional level...
November 28, 2016: Plant Physiology
https://www.readbyqxmd.com/read/27891591/nor1-suppresses-cancer-stem-like-cells-properties-of-tumor-cells-via-the-inhibition-of-the-akt-gsk-3%C3%AE-wnt-%C3%AE-catenin-aldh1a1-signal-circuit
#3
Wei Wang, Mei Yi, Shengnan Chen, Junjun Li, Haijing Zhang, Wei Xiong, Guiyuan Li, Xiaoling Li, Bo Xiang
Cancer stem cells (CSCs) play a key role in tumor radiotherapy and chemotherapy resistance, relapse, and metastasis, and are primarily maintained in a resting state in vivo. The failure of conventional therapies to target CSCs is the main cause of treatment failure. The discovery of CSCs in nasopharyngeal carcinoma (NPC) tumors is becoming more prevalent; however, the understanding of the mechanisms underlying the maintenance of tumor stemness is still limited. We previously cloned NOR1, a tumor suppressor gene downregulated in NPC cell lines and tissues...
November 27, 2016: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/27888400/repression-of-cdkn2c-caused-by-pml-rar%C3%AE-binding-promotes-the-proliferation-and-differentiation-block-in-acute-promyelocytic-leukemia
#4
Xiaoling Wang, Yun Tan, Yizhen Li, Jingming Li, Wen Jin, Kankan Wang
Inappropriate cell proliferation during oncogenesis is often accompanied by inactivation of components involved in the cell cycle machinery. Here, we report that cyclin-dependent kinase inhibitor 2C (CDKN2C) as a member of the cyclin-dependent kinase inhibitors is a target of the PML/RARα oncofusion protein in leukemogenesis of acute promyelocytic leukemia (APL).We found that CDKN2C was markedly downregulated in APL blasts compared with normal promyelocytes. Chromatin immunoprecipitation combined with quantitative polymerase chain reaction demonstrated that PML/RARα directly bound to the CDKN2C promoter in the APL patient-derived cell line NB4...
November 23, 2016: Frontiers of Medicine
https://www.readbyqxmd.com/read/27884160/the-d-domain-of-lrrc4-anchors-erk1-2-in-the-cytoplasm-and-competitively-inhibits-mek-erk-activation-in-glioma-cells
#5
Zeyou Wang, Qin Guo, Rong Wang, Gang Xu, Peiyao Li, Yingnan Sun, Xiaoling She, Qiang Liu, Qiong Chen, Zhibin Yu, Changhong Liu, Jing Xiong, Guiyuan Li, Minghua Wu
BACKGROUND: As a well-characterized key player in various signal transduction networks, extracellular-signal-regulated kinase (ERK1/2) has been widely implicated in the development of many malignancies. We previously found that Leucine-rich repeat containing 4 (LRRC4) was a tumor suppressor and a negative regulator of the ERK/MAPK pathway in glioma tumorigenesis. However, the precise molecular role of LRRC4 in ERK signal transmission is unclear. METHODS: The interaction between LRRC4 and ERK1/2 was assessed by co-immunoprecipitation and GST pull-down assays in vivo and in vitro...
November 25, 2016: Journal of Hematology & Oncology
https://www.readbyqxmd.com/read/27882136/accuracy-of-contrast-enhanced-ultrasound-compared-with-conventional-ultrasound-in-acute-pancreatitis-diagnosis-and-complication-monitoring
#6
Diming Cai, Shyam Sundar Parajuly, Huiyao Wang, Xiaoling Wang, Wenwu Ling, Bin Song, Yongzhong Li, Yan Luo
Contrast-enhanced ultrasound (CEUS) has been used for diagnosing acute pancreatitis (AP), particularly severe acute pancreatitis (SAP). However, the diagnostic difference between CEUS and conventional ultrasonography (CUS) for AP and SAP has not been reported. The aim of the present study was to investigate the diagnostic accuracy of CUS and CEUS for AP. A total of 196 patients clinically diagnosed with AP were selected. All patients underwent CUS, CEUS and contrast-enhanced computed tomography (CECT) within 72 h...
November 2016: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/27864994/serum-spd-l1-upregulated-in-sepsis-may-reflect-disease-severity-and-clinical-outcomes-in-septic-patients
#7
Minlong Liu, Xiaoling Zhang, Haiyan Chen, Guoen Wang, Jun Zhang, Peng Dong, Yuanyuan Liu, Shan An, Li Wang
we aimed to find the correlation between serum sPD-L1 (soluble programmed cell death L-1 ligand) and sepsis. Totally 91 consecutive patients with sepsis were performed in a 15-bed medical intensive care unit (ICU) of the second affiliated hospital, Xi'an Jiaotong University in Xi'an, China, between February 2015 and May 2016. Healthy controls (HC) consisted of 29 healthy volunteer. Baseline demographic data were recorded. Blood samples were collected through an indwelling central venous or by peripheral venipuncture...
November 16, 2016: Scandinavian Journal of Immunology
https://www.readbyqxmd.com/read/27863407/induction-of-mitochondria-mediated-apoptosis-and-pi3k-akt-mtor-mediated-autophagy-by-aflatoxin-b2-in-hepatocytes-of-broilers
#8
Binlong Chen, Diyan Li, Miao Li, Sichen Li, Kenan Peng, Xian Shi, Lanyun Zhou, Pu Zhang, Zhongxian Xu, Huadong Yin, Yan Wang, Xiaoling Zhao
Aflatoxins have been shown to induce hepatotoxicity in animal models, but the effects of aflatoxin B2 (AFB2) on broiler hepatocytes is unclear. This study aimed to investigate the effects of AFB2 on apoptosis and autophagy to provide an experimental basis for understanding the mechanism of aflatoxin-induced hepatotoxicity. One hundred-twenty Cobb500 broilers were allocated to four groups and exposed to 0 mg/kg, 0.2 mg/kg, 0.4 mg/kg, and 0.8 mg/kg of AFB2 per day for 21 d. AFB2 exerted potent proapoptotic and proautophagic effects on hepatocytes, with increased numbers of apoptotic and autophagic hepatocytes...
November 15, 2016: Oncotarget
https://www.readbyqxmd.com/read/27860282/in-situ-solvent-formation-microextraction-combined-with-magnetic-dispersive-micro-solid-phase-extraction-for-the-determination-of-benzoylurea-insecticides-in-water-samples
#9
Ying Zhang, Xiaoling Yang, Jiankang Wang, Wenfeng Zhou, Runhua Lu, Haixiang Gao, Sanbing Zhang
A simple, fast, effective and environmentally friendly method, in situ solvent formation microextraction combined with magnetic dispersive micro-solid-phase extraction for the determination of four benzoylurea insecticides is presented herein for the first time. In the proposed method, 1-hexyl-3-methylimidazolium bis[(trifluoromethane)sulfonyl]imide was formed by the reaction between 1-hexyl-3-methylimidazolium chloride and lithium bis[(trifluoromethane)sulfonyl]imide and was used to extract benzoylurea insecticides...
November 18, 2016: Journal of Separation Science
https://www.readbyqxmd.com/read/27860184/using-calendula-officinalis-as-a-floral-resource-to-enhance-aphid-and-thrips-suppression-by-the-flower-bug-orius-sauteri-hemiptera-anthocoridae
#10
Jing Zhao, Xiaojun Guo, Xiaoling Tan, Nicolas Desneux, Lucia Zappala, Fan Zhang, Su Wang
BACKGROUND: The flower bug Orius sauteri (Poppius) (Hemiptera: Anthocoridae) is widely used as a biocontrol agent against thrips and aphids infesting greenhouse vegetables in Asia. The survival and oviposition of such predators, as well as biocontrol services they provided, may be enhanced by adding extra floral resources to the crops. In the current study, we investigated the effects of the plant Calendula officinalis L., used as a floral resources, for promoting the control of Myzus persicae (Sulzer) and Frankliniella occidentalis (Pergande) by O...
November 8, 2016: Pest Management Science
https://www.readbyqxmd.com/read/27852059/avian-leukosis-virus-subgroup-j-induces-vegf-expression-via-nf-%C3%AE%C2%BAb-pi3k-dependent-il-6-production
#11
Yanni Gao, Yao Zhang, Yongxiu Yao, Xiaolu Guan, Yongzhen Liu, Xiaole Qi, Yongqiang Wang, Changjun Liu, Yanping Zhang, Honglei Gao, Venugopal Nair, Xiaomei Wang, Yulong Gao
Avian leukosis virus subgroup J (ALV-J) is an oncogenic virus causing hemangiomas and myeloid tumors in chickens. Interleukin-6 (IL-6) is a multifunctional pro-inflammatory interleukin involved in many types of cancer. We previously demonstrated that IL-6 expression was induced following ALV-J infection in chickens. The aim of this study is to characterize the mechanism by which ALV-J induces IL-6 expression, and the role of IL-6 in tumor development. Our results demonstrate that ALV-J infection increases IL-6 expression in chicken splenocytes, peripheral blood lymphocytes, and vascular endothelial cells...
November 10, 2016: Oncotarget
https://www.readbyqxmd.com/read/27851749/the-machado-joseph-disease-deubiquitinase-ataxin-3-regulates-the-stability-and-apoptotic-function-of-p53
#12
Hongmei Liu, Xiaoling Li, Guozhu Ning, Shu Zhu, Xiaolu Ma, Xiuli Liu, Chunying Liu, Min Huang, Ina Schmitt, Ullrich Wüllner, Yamei Niu, Caixia Guo, Qiang Wang, Tie-Shan Tang
As a deubiquitinating enzyme (DUB), the physiological substrates of ataxin-3 (ATX-3) remain elusive, which limits our understanding of its normal cellular function and that of pathogenic mechanism of spinocerebellar ataxia type 3 (SCA3). Here, we identify p53 to be a novel substrate of ATX-3. ATX-3 binds to native and polyubiquitinated p53 and deubiquitinates and stabilizes p53 by repressing its degradation through the ubiquitin (Ub)-proteasome pathway. ATX-3 deletion destabilizes p53, resulting in deficiency of p53 activity and functions, whereas ectopic expression of ATX-3 induces selective transcription/expression of p53 target genes and promotes p53-dependent apoptosis in both mammalian cells and the central nervous system of zebrafish...
November 2016: PLoS Biology
https://www.readbyqxmd.com/read/27836780/oxidative-stress-leads-to-reduction-of-plasmalogen-serving-as-a-novel-biomarker-for-systemic-lupus-erythematosus
#13
Changfeng Hu, Jia Zhou, Shasha Yang, Haichang Li, Chunyan Wang, Xiaoling Fang, Yongsheng Fan, Jida Zhang, Xianlin Han, Chengping Wen
Oxidative stress is elevated in systemic lupus erythematosus (SLE) patients, and associated extensively with SLE pathogenesis. However, no common indicators of oxidative stress are yet in routine clinical use because of their instability, nonspecificity, and non-representation of all SLE symptoms. Moreover, the method for reproducible analysis of reactive oxygen species is still lacking. Lipids and their metabolites are essential components of biological systems, many of which serve as molecular targets of oxidative stress and play crucial roles in signaling, inflammation, and immune responses...
November 9, 2016: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/27832344/molecular-characterization-and-functional-analysis-of-the-ospsbr-gene-family-in-rice
#14
Lihua Li, Taozhi Ye, Xiaoling Gao, Rongjun Chen, Jinghong Xu, Chen Xie, Jianqing Zhu, Xiaojian Deng, Pingrong Wang, Zhengjun Xu
Low temperature may exert a negative impact on agronomical productivity. PsbR was known as the 10 kDa Photosystem II polypeptide. Although plant PsbR is thought to play important roles in photosynthesis, little is known about the contribution of plant PsbR to abiotic stress resistance. The expression patterns of three OsPsbR gene family members, OsPsbR1, OsPsbR2, and OsPsbR3, were characterized in rice 'Nipponbare'. Under normal condition, OsPsbR1 and OsPsbR3 showed tissue-specific expression, while the expression of OsPsbR2 could not be detected in all tested tissues...
November 10, 2016: Molecular Genetics and Genomics: MGG
https://www.readbyqxmd.com/read/27828116/equivalence-theorem-for-light-waves-on-scattering-from-particulate-media
#15
Hao Wu, Xiaoning Pan, Xiaoling Ji, Daomu Zhao, Tao Wang
The equivalence theorem of light waves on scattering from a collection of particles is discussed. It is shown that when light waves are scattered from two different particulate media, the spectral density or the spectral degree of coherence may present identical distribution, provided that some relationship between the two particulate media is satisfied. An example of light waves on scattering from a collection of particles with random distribution is discussed, and the conditions for producing identical normalized spectral density and that for producing identical spectral degree of coherence are investigated...
October 1, 2016: Journal of the Optical Society of America. A, Optics, Image Science, and Vision
https://www.readbyqxmd.com/read/27820633/retinal-microvasculature-alteration-in-high-myopia
#16
Ye Yang, Jianhua Wang, Hong Jiang, Xiaoling Yang, Limiao Feng, Liang Hu, Liang Wang, Fan Lu, Meixiao Shen
Purpose: To investigate the retinal vascular network alterations in highly myopic eyes. Methods: Thirty-three highly myopic eyes from 21 subjects and 47 mildly myopic or emmetropic eyes from 24 healthy control subjects were enrolled. Optical coherence tomography angiography (OCTA) was used to image the superficial, deep, and whole retinal vascular plexuses at the macular region. Highly myopic eye images were analyzed after adjusting the ocular magnification using Bennett's formula...
November 1, 2016: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/27818918/the-fate-of-medications-evaluated-for-ischemic-stroke-pharmacotherapy-over-the-period-1995-2015
#17
REVIEW
Xiaoling Chen, Kewei Wang
Stroke is a brain damage caused by a loss of blood supply to a portion of the brain, which requires prompt and effective treatment. The current pharmacotherapy for ischemic stroke primarily relies on thrombolysis using recombinant tissue plasminogen activators (rt-PAs) to breakdown blood clots. Neuroprotective agents that inhibit excitatory neurotransmitters are also used to treat ischemic stroke but have failed to translate into clinical benefits. This poses a major challenge in biomedical research to understand what causes the progressive brain cell death after stroke and how to develop an effective pharmacotherapy for stroke...
November 2016: Acta Pharmaceutica Sinica. B
https://www.readbyqxmd.com/read/27806896/racial-ethnic-differences-in-the-association-of-childhood-adversities-with-depression-and-the-role-of-resilience
#18
Nagy A Youssef, Daniel Belew, Guang Hao, Xiaoling Wang, Frank A Treiber, Michael Stefanek, Mark Yassa, Elizabeth Boswell, W Vaughn McCall, Shaoyong Su
BACKGROUND: Adverse childhood experiences (ACE) including childhood abuse and trauma increase depressive symptoms. The role of resilience and how it interacts with both ACEs and the potential development of depressive symptoms, including how race and ethnicity moderate these effects, are much less studied. The aims of this study were to examine: 1) whether there is a dose-response relationship between trauma and depressive symptoms; 2) whether early trauma affected European Americans (EA) and African Americans (AA) in a similar fashion; and 3) whether resilience mitigates the effect of trauma...
October 24, 2016: Journal of Affective Disorders
https://www.readbyqxmd.com/read/27806319/ammonium-tetrathiomolybdate-treatment-targets-the-copper-transporter-atp7a-and-enhances-sensitivity-of-breast-cancer-to-cisplatin
#19
Cristine L Chisholm, Haitao Wang, Ada Hang-Heng Wong, Guelaguetza Vazquez-Ortiz, Weiping Chen, Xiaoling Xu, Chu-Xia Deng
Cisplatin is an effective breast cancer drug but resistance often develops over prolonged chemotherapy. Therefore, we performed a candidate approach RNAi screen in combination with cisplatin treatment to identify molecular pathways conferring survival advantages. The screen identified ATP7A as a therapeutic target. ATP7A is a copper ATPase transporter responsible for intercellular movement and sequestering of cisplatin. Pharmaceutical replacement for ATP7A by ammonium tetrathiomolybdate (TM) enhanced cisplatin treatment in breast cancer cells...
October 31, 2016: Oncotarget
https://www.readbyqxmd.com/read/27796286/respective-il-17a-production-by-%C3%AE-%C3%AE-t-and-th17-cells-and-its-implication-in-host-defense-against-chlamydial-lung-infection
#20
Hong Bai, Xiaoling Gao, Lei Zhao, Ying Peng, Jie Yang, Sai Qiao, Huili Zhao, Shuhe Wang, YiJun Fan, Antony George Joyee, Zhi Yao, Xi Yang
The role of IL-17A is important in protection against lung infection with Chlamydiae, an obligate intracellular bacterial pathogen. In this study, we explored the producers of IL-17A in chlamydial lung infection and specifically tested the role of major IL-17A producers in protective immunity. We found that γδT cells and Th17 cells are the major producers of IL-17A at the early and later stages of chlamydial infection, respectively. Depletion of γδT cells in vivo at the early postinfection (p.i.) stage, when most γδT cells produce IL-17A, failed to alter Th1 responses and bacterial clearance...
October 31, 2016: Cellular & Molecular Immunology
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