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https://www.readbyqxmd.com/read/28435970/-amp-activated-kinase-activation-inhibits-transforming-growth-factor-%C3%AE-1-production-in-cardiac-fibroblasts-via-targeting-c-ebp%C3%AE
#1
Han Xiao, Cheng-Shi Piao, Rui-Fei Chen, You-Yi Zhang
AMP-activated protein kinase (AMPK) activation has been shown to protect against fibrosis. However, the underlying mechanism remains unclear. Here we explored the effect of AMPK activation on transforming growth factor-β1 (TGFβ1) production induced by angiotensin II (AngII) in cardiac fibroblasts and the underlying mechanisms. Adult mouse cardiac fibroblasts were isolated. TGFβ1 and AMPK activity were determined by ELISA and Western blots, respectively. Pretreatment of AMPK activator AICAR inhibited TGFβ1 production induced by AngII in cardiac fibroblasts, which was reversed by AMPK inhibitor compound C...
April 25, 2017: Sheng Li Xue Bao: [Acta Physiologica Sinica]
https://www.readbyqxmd.com/read/28435473/downregulation-of-mitochondrial-cyclooxygenase-2-inhibits-the-stemness-of-nasopharyngeal-carcinoma-by-decreasing-the-activity-of-dynamin-related-protein-1
#2
Teng-Jian Zhou, Shi-Li Zhang, Cheng-Yong He, Qun-Ying Zhuang, Pei-Yu Han, Sheng-Wei Jiang, Huan Yao, Yi-Jun Huang, Wen-Hua Ling, Yu-Chun Lin, Zhong-Ning Lin
Cancer stem cells (CSCs) are a small subset of malignant cells, possessing stemness, with strong tumorigenic capability, conferring resistance to therapy and leading to the relapse of nasopharyngeal carcinoma (NPC). Our previous study suggested that cyclooxygenase-2 (COX-2) would be a novel target for the CSCs-like side population (SP) cells in NPC. In the present study, we further found that COX-2 maintained the stemness of NPC by enhancing the activity of mitochondrial dynamin-related protein 1 (Drp1), a mitochondrial fission mediator, by studying both sorted SP cells from NPC cell lines and gene expression analyses in NPC tissues...
2017: Theranostics
https://www.readbyqxmd.com/read/28435448/inhibition-of-platelet-function-using-liposomal-nanoparticles-blocks-tumor-metastasis
#3
Yinlong Zhang, Jingyan Wei, Shaoli Liu, Jing Wang, Xuexiang Han, Hao Qin, Jiayan Lang, Keman Cheng, Yiye Li, Yingqiu Qi, Greg J Anderson, Saraswati Sukumar, Suping Li, Guangjun Nie
Extensive evidence has shown that platelets support tumor metastatic progression by inducing epithelial-mesenchymal transition of cancer cells and by shielding circulating tumor cells from immune-mediated elimination. Therefore, blocking platelet function represents a potential new avenue for therapy focused on eliminating metastasis. Here we show that liposomal nanoparticles bearing the tumor-homing pentapeptide CREKA (Cys-Arg-Glu-Lys-Ala) can deliver a platelet inhibitor, ticagrelor, into tumor tissues to specifically inhibit tumor-associated platelets...
2017: Theranostics
https://www.readbyqxmd.com/read/28435089/cobalt-chloride-induces-rhoa-rock-activation-and-remodeling-effect-in-h9c2-cardiomyoblasts-involvement-of-pi3k-akt-and-mapk-pathways
#4
Cheng-I Cheng, Yueh-Hong Lee, Po-Han Chen, Yu-Chun Lin, Ming-Huei Chou, Ying-Hsien Kao
Chronic heart failure is a serious complication of myocardial infarction, one of the major causes of death worldwide that often leads to adverse cardiac hypertrophy and poor prognosis. Hypoxia-induced cardiac tissue remodeling is considered an important underlying etiology. This study aimed to delineate the signaling profile of RhoA/ROCK, PI3K/Akt, and MAPK and their involvement in regulation of remodeling events in cultured H9c2 cardiomyoblast cells. In addition to its growth-suppressive effect, the hypoxia-mimetic chemical, cobalt chloride (CoCl2) significantly induced RhoA kinase activation as revealed by increased MBS phosphorylation and ROCK1/2 expression in H9c2 cells...
April 20, 2017: Cellular Signalling
https://www.readbyqxmd.com/read/28431509/regular-recreational-physical-activity-and-risk-of-head-and-neck-cancer
#5
Chen-Lin Lin, Wei-Ting Lee, Chun-Yen Ou, Jenn-Ren Hsiao, Cheng-Chih Huang, Jehn-Shyun Huang, Tung-Yiu Wong, Ken-Chung Chen, Sen-Tien Tsai, Sheen-Yie Fang, Tze-Ta Huang, Jiunn-Liang Wu, Yuan-Hua Wu, Wei-Ting Hsueh, Chia-Jui Yen, Yu-Hsuan Lai, Hsiao-Chen Liao, Shang-Yin Wu, Ming-Wei Yang, Forn-Chia Lin, Jang-Yang Chang, Yi-Hui Wang, Ya-Ling Weng, Han-Chien Yang, Yu-Shan Chen, Jeffrey S Chang
BACKGROUND: Although substantial evidence supports a 20-30% risk reduction of colon cancer, breast cancer, and endometrial cancer by physical activity (PA), the evidence for head and neck cancer (HNC) is limited. Three published studies on the association between PA and HNC have generated inconsistent results. The current study examined the association between recreational PA (RPA) and HNC risk with a more detailed assessment on the intensity, frequency, duration, and total years of RPA...
April 21, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28430634/outcomes-of-microwave-ablation-for-hepatocellular-carcinoma-adjacent-to-large-vessels-a-propensity-score-analysis
#6
Jian-Ping Dou, Jie Yu, Xiao-Huan Yang, Zhi-Gang Cheng, Zhi-Yu Han, Fang-Yi Liu, Xiao-Ling Yu, Ping Liang
The aim of this study was to retrospectively compare the long-term efficacy of MW ablation as a curative therapy for hepatocellular carcinoma(HCC) adjacent to large vessels(≥3 mm) with that in safe location. Between 2010 and 2016, 406 patients diagnosed with early-stage HCC at Chinese PLA general hospital were enrolled. One-to-one matched pairs between the vessel group and the safe group were generated using propensity score matching. The associations of treatment strategy with overall survival and local tumor progression were determined by Cox regression...
February 24, 2017: Oncotarget
https://www.readbyqxmd.com/read/28430510/topologically-allowed-nonsixfold-vortices-in-a-sixfold-multiferroic-material-observation-and-classification
#7
Shaobo Cheng, Jun Li, Myung-Geun Han, Shiqing Deng, Guotai Tan, Xixiang Zhang, Jing Zhu, Yimei Zhu
We report structural transformation of sixfold vortex domains into two-, four-, and eightfold vortices via a different type of topological defect in hexagonal manganites. Combining high-resolution electron microscopy and Landau-theory-based numerical simulations, we investigate the remarkable atomic arrangement and the intertwined relationship between the vortex structures and the topological defects. The roles of their displacement field, formation temperature, and nucleation sites are revealed. All conceivable vortices in the system are topologically classified using homotopy group theory, and their origins are identified...
April 7, 2017: Physical Review Letters
https://www.readbyqxmd.com/read/28430275/concave-gold-bipyramids-bound-with-multiple-high-index-facets-improved-raman-and-catalytic-activities
#8
Xiaolin Kang, Qifeng Ruan, Han Zhang, Feng Bao, Jun Guo, Minghua Tang, Si Cheng, Jianfang Wang
Concave nanocrystals usually exhibit a large electromagnetic-field enhancement and superior catalytic performance due to their sharp corners, negative curvature and high-index facets. Conventional gold bipyramids (AuBPs) possess intriguing plasmonic properties which are attractive for various applications while the surface curvature of the reported bipyramids has not been fine-tuned to concave or convex structures to date. Additionally, the longitudinal surface plasmon resonance (LSPR) wavelengths of conventional AuBPs are mostly located in the range of 650-1350 nm and the sizes of these nanoparticles are usually not beyond 350 nm, which are not facilitated to some nano-focusing and nanophotonic applications...
April 21, 2017: Nanoscale
https://www.readbyqxmd.com/read/28429098/symptomatic-menopausal-transition-and-subsequent-bipolar-disorder-among-midlife-women-with-major-depression-a-nationwide-longitudinal-study
#9
Li-Chi Chen, Albert C Yang, Tung-Ping Su, Ya-Mei Bai, Cheng-Ta Li, Wen-Han Chang, Tzeng-Ji Chen, Shih-Jen Tsai, Mu-Hong Chen
Previous studies suggested that menopausal transition played an important role in the clinical course of major depression and bipolar disorder. However, the role of symptomatic menopausal transition in diagnostic conversion from major depression to bipolar disorder was still unknown. Using the Taiwan National Health Insurance Research Database, 50,273 midlife women aged between 40 and 60 years in 2002∼2008 with major depression were enrolled in our study and divided into two subgroups based on the presence (n = 21,120) or absence (n = 29,153) of symptomatic menopausal transition...
April 20, 2017: Archives of Women's Mental Health
https://www.readbyqxmd.com/read/28429084/rs4878104-contributes-to-alzheimer-s-disease-risk-and-regulates-dapk1-gene-expression
#10
Yang Hu, Liang Cheng, Ying Zhang, Weiyang Bai, Wenyang Zhou, Tao Wang, Zhifa Han, Jian Zong, Shuilin Jin, Jun Zhang, Qinghua Jiang, Guiyou Liu
In 2006, a candidate gene study reported death-associated protein kinase 1 (DAPK1) rs4878104 variant to be significantly associated with Alzheimer's disease (AD) risk. However, the following studies showed inconsistent association results. Here, we conducted an updated analysis to investigate the potential association between rs4878104 and AD using a total of 60,751 samples (20,161 AD cases and 40,590 controls). In the pooled population, the results based on the allele and genotype genetic models show that rs4878104 variant is not significantly associated with AD risk...
April 20, 2017: Neurological Sciences
https://www.readbyqxmd.com/read/28428647/a-partially-linear-framework-for-massive-heterogeneous-data
#11
Tianqi Zhao, Guang Cheng, Han Liu
We consider a partially linear framework for modelling massive heterogeneous data. The major goal is to extract common features across all sub-populations while exploring heterogeneity of each sub-population. In particular, we propose an aggregation type estimator for the commonality parameter that possesses the (non-asymptotic) minimax optimal bound and asymptotic distribution as if there were no heterogeneity. This oracular result holds when the number of sub-populations does not grow too fast. A plug-in estimator for the heterogeneity parameter is further constructed, and shown to possess the asymptotic distribution as if the commonality information were available...
August 2016: Annals of Statistics
https://www.readbyqxmd.com/read/28427969/hyperbaric-oxygen-therapy-is-associated-with-lower-short-and-long-term-mortality-in-patients-with-carbon-monoxide-poisoning
#12
Chien-Cheng Huang, Chung-Han Ho, Yi-Chen Chen, Hung-Jung Lin, Chien-Chin Hsu, Jhi-Joung Wang, Shih-Bin Su, How-Ran Guo
BACKGROUND: To date, there has been no consensus about the effect of hyperbaric oxygen therapy (HBOT) on the mortality of patients with carbon monoxide poisoning (COP). This retrospective nationwide population-based cohort study from Taiwan was conducted to clarify this issue. METHODS: Using the Nationwide Poisoning Database, we identified 25,737 COP patients diagnosed between 1999 and 2012, including 7,278 patients who received HBOT and 18,459 patients who did not...
April 17, 2017: Chest
https://www.readbyqxmd.com/read/28427203/regional-structural-impairments-outside-lesions-are-associated-with-verbal-short-term-memory-deficits-in-chronic-subcortical-stroke
#13
Qingqing Diao, Jingchun Liu, Caihong Wang, Jingliang Cheng, Tong Han, Xuejun Zhang
BACKGROUND AND PURPOSE: We aimed to explore the neural mechanisms of verbal short-term memory (VSTM) impairment in subcortical stroke by evaluating the contributions of lesion and remote grey matter volume (GMV) reduction. RESULTS: There was no significant correlation between lesions and VSTM. In stroke patients with left lesions, GMV reductions in the right middle frontal gyrus and in the left inferior frontal gyrus were positively correlated with VSTM impairment...
March 3, 2017: Oncotarget
https://www.readbyqxmd.com/read/28426049/a-pt-co3o4-cd-electrocatalyst-with-enhanced-electrocatalytic-performance-and-resistance-to-co-poisoning-achieved-by-carbon-dots-and-co3o4-for-direct-methanol-fuel-cells
#14
Yue Sun, Yunjie Zhou, Cheng Zhu, Lulu Hu, Mumei Han, Aoqi Wang, Hui Huang, Yang Liu, Zhenhui Kang
Highly efficient electrocatalysts remain huge challenges in direct methanol fuel cells (DMFCs). Here, a Pt-Co3O4-CDs/C composite was fabricated as an anode electrocatalyst with low Pt content (12 wt%) by using carbon dots (CDs) and Co3O4 nanoparticles as building blocks. The Pt-Co3O4-CDs/C composite catalyst shows a significantly enhanced electrocatalytic activity (1393.3 mA mg(-1) Pt), durability (over 4000 s) and CO-poisoning tolerance. The superior catalytic activity should be attributed to the synergistic effect of CDs, Pt and Co3O4...
April 20, 2017: Nanoscale
https://www.readbyqxmd.com/read/28423724/intensity-modulated-radiotherapy-has-superior-outcomes-to-three-dimensional-conformal-radiotherapy-in-patients-with-stage-ie-iie-extranodal-nasal-type-natural-killer-t-cell-lymphoma
#15
Yi-Yang Li, Hai-Qun Lin, Lu-Lu Zhang, Ling-Ling Feng, Shao-Qing Niu, Han-Yu Wang, Yu-Jing Zhang, Xi-Cheng Wang
We compared the treatment outcomes, toxicities and prognoses of patients with stage IE-IIE extranodal natural killer/T-cell lymphoma (ENKTL) treated with intensity-modulated radiotherapy (IMRT) or three-dimensional conformal radiotherapy (3DCRT). Newly diagnosed early-stage ENKTL patients (N = 173) were enrolled and received extended involved-field radiotherapy following induction chemotherapy. Patients were treated with 3DCRT (n = 98) or IMRT (n = 75). One-to-one matching of the IMRT and 3DCRT groups was performed through propensity score matching, which yielded 23 pairs of patients...
March 11, 2017: Oncotarget
https://www.readbyqxmd.com/read/28423539/interplay-between-%C3%AE-np63-and-mir-138-5p-regulates-growth-metastasis-and-stemness-of-oral-squamous-cell-carcinoma
#16
Zehang Zhuang, Nan Xie, Jing Hu, Pei Yu, Cheng Wang, Xingxue Hu, Xiaozhe Han, Jinsong Hou, Hongzhang Huang, Xiqiang Liu
TP63 acts as a master regulator in epithelia development and in the progression of various cancers, but its role in oral cancer pathogenesis remains unknown. This study aimed to explore the role of TP63 in the progression of oral squamous cell carcinoma (OSCC). This study shows that ΔNp63, the predominant isoform of TP63, is significantly upregulated in OSCC tissues and cell lines compared with their normal counterparts, and its expression is closely correlated with pathological differentiation, lymph node metastasis and clinical stage in patients with OSCC...
March 28, 2017: Oncotarget
https://www.readbyqxmd.com/read/28422303/smoking-increased-the-risk-of-prostate-cancer-with-grade-group%C3%A2-%C3%A2-%C3%A2-4-and-intraductal-carcinoma-in-a-prospective-biopsy-cohort
#17
Bo Tang, Cheng-Tao Han, Hua-Lei Gan, Gui-Ming Zhang, Cui-Zhu Zhang, Wei-Yi Yang, Ying Shen, Yao Zhu, Ding-Wei Ye
OBJECTIVE: To investigate the association between smoking and different prostate cancer (PCa) pathological subtypes incidence in Chinese men. PATIENTS AND METHODS: We prospectively included 1795 patients who underwent prostate biopsies in one tertiary center between March 2013 and April 2016. Clinical data and biopsy outcomes were collected. Logistic regression was used to evaluate the association between cigarette smoking and PCa incidence. RESULTS: A total of 737 men, 480 men and 58 men were diagnosed with PCa, high-grade PCa (HGPCa, grade group ≥ 4 as accepted by the 2014 ISUP) and intraductal carcinoma of the prostate (IDC-P), respectively...
April 19, 2017: Prostate
https://www.readbyqxmd.com/read/28422203/a-nanoporous-ag-i-coordination-polymer-for-selective-adsorption-of-carcinogenic-dye-acid-red-26
#18
Cheng-Peng Li, Hang Zhou, Si Wang, Hong-Han Yuan, Su-Zhen Zhang, Miao Du
A cationic Ag(i) coordination polymer with 1D nanoporous channels (ca. 1.22 nm diameter) shows the selective and complete removal of carcinogenic dye Acid Red 26 from aqueous solution upon the size-exclusion and charge-matching effect.
April 19, 2017: Chemical Communications: Chem Comm
https://www.readbyqxmd.com/read/28422160/efficient-electrical-control-of-thin-film-black-phosphorus-bandgap
#19
Bingchen Deng, Vy Tran, Yujun Xie, Hao Jiang, Cheng Li, Qiushi Guo, Xiaomu Wang, He Tian, Steven J Koester, Han Wang, Judy J Cha, Qiangfei Xia, Li Yang, Fengnian Xia
Recently rediscovered black phosphorus is a layered semiconductor with promising electronic and photonic properties. Dynamic control of its bandgap can allow for the exploration of new physical phenomena. However, theoretical investigations and photoemission spectroscopy experiments indicate that in its few-layer form, an exceedingly large electric field in the order of several volts per nanometre is required to effectively tune its bandgap, making the direct electrical control unfeasible. Here we reveal the unique thickness-dependent bandgap tuning properties in intrinsic black phosphorus, arising from the strong interlayer electronic-state coupling...
April 19, 2017: Nature Communications
https://www.readbyqxmd.com/read/28422117/ultrahigh-responsivity-and-detectivity-graphene-perovskite-hybrid-phototransistors-by-sequential-vapor-deposition
#20
Po-Han Chang, Shang-Yi Liu, Yu-Bing Lan, Yi-Chen Tsai, Xue-Qian You, Chia-Shuo Li, Kuo-You Huang, Ang-Sheng Chou, Tsung-Chin Cheng, Juen-Kai Wang, Chih-I Wu
In this work, graphene-methylammonium lead iodide (MAPbI3) perovskite hybrid phototransistors fabricated by sequential vapor deposition are demonstrated. Ultrahigh responsivity of 1.73 × 10(7) A W(-1) and detectivity of 2 × 10(15) Jones are achieved, with extremely high effective quantum efficiencies of about 10(8)% in the visible range (450-700 nm). This excellent performance is attributed to the ultra-flat perovskite films grown by vapor deposition on the graphene sheets. The hybrid structure of graphene covered with uniform perovskite has high exciton separation ability under light exposure, and thus efficiently generates photocurrents...
April 19, 2017: Scientific Reports
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