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https://www.readbyqxmd.com/read/28549913/microrna-186-5p-overexpression-modulates-colon-cancer-growth-by-repressing-the-expression-of-the-fam134b-tumour-inhibitor
#1
Farhadul Islam, Vinod Gopalan, Jelena Vider, Riajul Wahab, Faeza Ebrahimi, Cu-Tai Lu, Kais Kasem, Alfred K Y Lam
OBJECTIVES: The role and underlying mechanism of miR-186-5p in colorectal cancer remain unknown. The present study aims to examine the various cellular effects of miR-186-5p in the carcinogenesis of colorectal cancer. Also, the interacting targets and association of clinicopathological factors with miR-186-5p expression in patients with colorectal cancer were analysed. METHODS: The miR-186-5p expression levels in colorectal cancer tissues (n=126) and colon cancer cell lines (n=3) were analysed by real-time PCR...
May 23, 2017: Experimental Cell Research
https://www.readbyqxmd.com/read/28548942/the-n-terminal-tail-coordinates-with-carbohydrate-recognition-domain-to-mediate-galectin-3-induced-apoptosis-in-t-cells
#2
Huiting Xue, Lu Liu, Zihan Zhao, Zhongyu Zhang, Yuan Guan, Hairong Cheng, Yifa Zhou, Guihua Tai
Galectin-3 is a galectin with a unique flexible N-terminal tail (NT) connected to the conserved carbohydrate recognition domain (CRD). Galectin-3 is associated with tumor immune tolerance and exhibits an ability to induce T cell apoptosis. We used Jurkat, Jurkat E6-1 and CEM T-cell lines and human peripheral blood mononuclear cells (PBMCs) to investigate the specific roles of the CRD and NT in inducing T cell apoptosis. Galectin-3 triggered sustained extracellular signal-regulated kinase (ERK) phosphorylation that induced apoptosis...
May 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/28546140/what-to-build-for-middle-agers-to-come-attractive-and-necessary-functions-of-exercise-promotion-mobile-phone-apps-a-cross-sectional-study
#3
Gen-Yih Liao, Yu-Tai Chien, Yu-Jen Chen, Hsiao-Fang Hsiung, Hsiao-Jung Chen, Meng-Hua Hsieh, Wen-Jie Wu
BACKGROUND: Physical activity is important for middle-agers to maintain health both in middle age and in old age. Although thousands of exercise-promotion mobile phone apps are available for download, current literature offers little understanding regarding which design features can enhance middle-aged adults' quality perception toward exercise-promotion apps and which factor may influence such perception. OBJECTIVES: The aims of this study were to understand (1) which design features of exercise-promotion apps can enhance quality perception of middle-agers, (2) whether their needs are matched by current functions offered in app stores, and (3) whether physical activity (PA) and mobile phone self-efficacy (MPSE) influence quality perception...
May 25, 2017: JMIR MHealth and UHealth
https://www.readbyqxmd.com/read/28545988/impact-of-days-in-milk-at-the-initiation-of-ovulation-synchronization-protocols-on-the-efficiency-of-first-ai-in-multiparous-holstein-cows
#4
Mahmoud S El-Tarabany
The objective of this study was to evaluate the impact of days in milk (DIM) at the initiation of ovulation synchronization protocols [spontaneous estrus (n=899), Presynch (n=1277), and CIDRsynch (n=978)] on fertility indices of the first AI in multiparous Holstein cows. The days from calving to the initiation of timed-AI (TAI) were categorized into: <50days (D1), 51-65days (D2) and 66-80days (D3). Pregnancy rate (P/AI at day 75) of cows at D2 period was significantly greater than that in the D1 period [OR (odds ratio)=1...
May 17, 2017: Animal Reproduction Science
https://www.readbyqxmd.com/read/28544697/a-naphthalene-derivative-as-turn-on-fluorescent-chemosensor-for-the-highly-selective-and-sensitive-detection-of-al-3
#5
Zhong-Xin Zhu, Dong-Dong Yu, Zhi-Guo Liu, Ye-Wei Huang, A-Yi Zhou, Zhi-Wei Chen, Jia Sun, Xu Wang, Li-Tai Jin, Wei-Tao Cong
A Schiff base compound derived from naphthalene has been synthesized and characterized as an Al(3+) -selective fluorescent probe. The chemosensor (L) exhibits high selectively for Al(3+) in aqueous solution, even in the presence of biologically relevant cations such as Na(+) , K(+) , Ca(2+) , Mg(2+) , Pb(2+) and several transition metal ions. There was no observed interference from anions like Br(-) , Cl(-) , HSO3(-) , SO3(2-) , S2 O3(2-) , NO2(-) , CO3(2-) and AC(-) . The lowest detection limit for the chemosensor L was found to be 1...
May 22, 2017: Luminescence: the Journal of Biological and Chemical Luminescence
https://www.readbyqxmd.com/read/28544448/using-pymol-to-explore-the-effects-of-ph-on-noncovalent-interactions-between-immunoglobulin-g-and-protein-a-a-guided-inquiry-biochemistry-activity
#6
Zahilyn D Roche Allred, Heeyoung Tai, Stacey Lowery Bretz, Richard C Page
Students' understandings of foundational concepts such as noncovalent interactions, pH and pKa are crucial for success in undergraduate biochemistry courses. We developed a guided-inquiry activity to aid students in making connections between noncovalent interactions and pH/pKa . Students explore these concepts by examining the primary and tertiary structures of immunoglobulin G (IgG) and Protein A. Students use PyMOL, an open source molecular visualization application, to (1) identify hydrogen bonds and salt bridges between and within the proteins at physiological pH and (2) apply their knowledge of pH/pKa to association rate constant data for these proteins at pH 4 and pH 11...
May 24, 2017: Biochemistry and Molecular Biology Education
https://www.readbyqxmd.com/read/28543664/comparison-of-male-conflict-behavior-in-chimpanzees-pan-troglodytes-and-bonobos-pan-paniscus-with-specific-regard-to-coalition-and-post-conflict-behavior
#7
Martin Surbeck, Christophe Boesch, Cédric Girard-Buttoz, Catherine Crockford, Gottfried Hohmann, Roman M Wittig
Coalitions among males during within group conflicts have a strong influence on the competitive and social environment within social groups. To evaluate possible variation in the occurrence of such coalitions in our closest relatives, chimpanzees and bonobos, we compared male aggression and coalitionary behavior in two natural communities, one of each species, with a similar size and composition. Furthermore we compared affiliative behavior that might be related to coalition formation among males. We found higher frequencies of aggression and a greater likelihood to form coalitions during within-group conflicts among wild male chimpanzees at Taï compared to wild male bonobos at LuiKotale...
June 2017: American Journal of Primatology
https://www.readbyqxmd.com/read/28543594/the-neuroprotective-role-of-mir-124-3p-in-a-6-hydroxydopamine-induced-cell-model-of-parkinson-s-disease-via-the-regulation-of-anax5
#8
Rui-Fang Dong, Bing Zhang, Li-Wen Tai, Hong-Mei Liu, Fang-Kun Shi, Ning-Ning Liu
Parkinson's disease (PD), the second most common neurodegenerative disorder, is characterized by a progressive loss of dopaminergic neurons in the midbrain. Several pathogenetic factors have been involved in the onset and progression of PD, including inflammation, oxidative stress, unfolded protein accumulation, and apoptosis. Ample evidence indicates that miRNAs could regulate post-transcriptional gene expression and neuronal disease. In this study, we evaluated the effects and mechanism of miR-124-3p on 6-hydroxydopamine (6-OHDA)-induced neurotoxicity in PC12 cells and SH-SY5Y cells...
May 25, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28542159/clonorchis-sinensis-antigens-alter-hepatic-macrophage-polarization-in-vitro-and-in-vivo
#9
Eun-Min Kim, You Shine Kwak, Myung-Hee Yi, Ju Yeong Kim, Woon-Mok Sohn, Tai-Soon Yong
Clonorchis sinensis infection elicits hepatic inflammation, which can lead to cholangitis, periductal hepatic fibrosis, liver cirrhosis, and even cholangiocarcinoma. Hepatic macrophages are an intrinsic element of both innate and acquired immunity. This study was conducted to demonstrate the dynamics of hepatic macrophage polarization during C. sinensis infection in mice and to identify factors regulating this polarization. Treatment of hepatic macrophages isolated from normal mice with C. sinensis excretory/secretory products (ESPs) resulted in the preferential generation of classically activated hepatic macrophages (M1 macrophages) and the production of pro-inflammatory cytokines...
May 24, 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28540168/arterial-relaxation-is-coupled-to-inhibition-of-mitochondrial-fission-in-arterial-smooth-muscle-cells-comparison-of-vasorelaxant-effects-of-verapamil-and-phentolamine
#10
Jing Jin, Xin Shen, Yu Tai, Shanliang Li, Mingyu Liu, Changlin Zhen, Xiuchen Xuan, Xiyue Zhang, Nan Hu, Xinzi Zhang, Deli Dong
Mitochondria are morphologically dynamic organelles which undergo fission and fusion processes. Our previous study found that arterial constriction was always accompanied by increased mitochondrial fission in smooth muscle cells, whereas inhibition of mitochondrial fission in smooth muscle cells was associated with arterial relaxation. Here, we used the typical vasorelaxants, verapamil and phentolamine, to further confirm the coupling between arterial constriction and mitochondrial fission in rat aorta. Results showed that phentolamine but not verapamil induced vasorelaxation in phenylephrine (PE)-induced rat thoracic aorta constriction...
May 2017: Acta Pharmaceutica Sinica. B
https://www.readbyqxmd.com/read/28540011/effectiveness-of-vision-therapy-in-school-children-with-symptomatic-convergence-insufficiency
#11
Jung Un Jang, Jung Yun Jang, Kim Tai-Hyung, Hwang Woon Moon
PURPOSE: To determine the effectiveness of vision therapy among Korean elementary school children with convergence insufficiency. METHODS: A total of 235 elementary schoolchildren, 10.13 ± 2.45 years of age, were subjected to thorough eye examination including binocular vision testing. Of them, 32 individuals with symptomatic convergence insufficiency without strabismus, amblyopia, and ocular disease were chosen to receive vision therapy via brock string, barrel card, mirror stereoscope, prism goggles, and aperture rule for a duration of 8 weeks...
April 2017: Journal of Ophthalmic & Vision Research
https://www.readbyqxmd.com/read/28539755/practical-synthesis-of-the-bicyclic-darunavir-side-chain-3r-3as-6ar-hexahydrofuro-2-3-b-furan-3-ol-from-monopotassium-isocitrate
#12
REVIEW
Gary L Moore, Rodger W Stringham, David S Teager, Tai-Yuen Yue
A practical synthesis of (3R,3aS,6aR)-hexahydrofuro[2,3-b]furan-3-ol-a key intermediate in the synthesis of darunavir-from monopotassium isocitrate is described. The isocitric acid salt, obtained from a high-yielding fermentation fed by sunflower oil, was converted in several steps to a tertiary amide. This amide, along with the compound's ester functionalities, was reduced with lithium aluminum hydride to give, on acidic workup, a transient aminal-triol. This was converted in situ to the title compound, the bicyclic acetal furofuranol side chain of darunavir, a protease inhibitor used in treatment of HIV/AIDS...
January 20, 2017: Organic Process Research & Development
https://www.readbyqxmd.com/read/28539439/contribution-of-human-lung-parenchyma-and-leukocyte-influx-to-oxidative-stress-and-immune-mediated-pathology-following-nipah-infection
#13
Olivier Escaffre, Tais B Saito, Terry L Juelich, Tetsuro Ikegami, Jennifer K Smith, David D Perez, Colm Atkins, Corri B Levine, Matthew B Huante, Rebecca J Nusbaum, Janice J Endsley, Alexander N Freiberg, Barry Rockx
Nipah virus (NiV) is a zoonotic emerging paramyxovirus that can cause a fatal respiratory illness or encephalitis in humans. Despite many efforts, the molecular mechanisms of NiV-induced acute lung injury (ALI) remain unclear. We previously showed that NiV replicates to high titers in human lung grafts in NOD scid gamma mice, resulting in a robust inflammatory response. Interestingly, these mice can undergo human immune system reconstitution by the Bone marrow, Liver, and Thymus (BLT) reconstitution method, in addition to lung tissue engraftment, giving altogether a realistic model to study human respiratory viral infections...
May 24, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28539437/spontaneous-mutation-at-amino-acid-544-of-the-ebola-glycoprotein-potentiates-virus-entry-and-selection-in-tissue-culture
#14
John B Ruedas, Jason Ladner, Chelsea R Ettinger, Suryaram Gummuluru, Gustavo Palacios, John H Connor
Ebolaviruses have a surface glycoprotein (GP1,2) required for virus attachment and entry into cells. Mutations affecting GP1,2 functions can alter virus growth properties. We generated a recombinant vesicular stomatitis virus encoding Ebola Virus Makona variant GP1,2 (rVSV-MAK-GP) and observed emergence of a T544I mutation in the Makona GP1,2 gene during tissue culture passage in certain cell lines. The T544I mutation emerged within two passages when VSV-MAK-GP was grown on Vero E6, Vero, and BS-C-1 cells but not when it was passaged on Huh7 and HepG2 cells...
May 24, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28538267/cirrhosis-has-no-impact-on-therapeutic-responses-of-entecavir-for-chronic-hepatitis-b
#15
Pin-Chao Wang, Tao-Yang Wei, Tai-Chung Tseng, Hans Hsienhong Lin, Chia-Chi Wang
OBJECTIVE: As the efficacy of a direct antiviral agent is reduced in cirrhotic chronic hepatitis C patients, prolonged duration of treatment or addition of ribavirin is recommended to improve the rates of sustained virological response. However, the impact of cirrhosis on the efficacy of antiviral treatment for chronic hepatitis B (CHB) remained unclear. PATIENTS AND METHODS: This retrospective cohort study screened entecavir (ETV)-treated CHB patients in Taipei Tzu Chi Hospital from January 2007 till October 2014...
May 19, 2017: European Journal of Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/28538111/cardiovascular-and-metabolic-effects-of-angptl3-antisense-oligonucleotides
#16
Mark J Graham, Richard G Lee, Teresa A Brandt, Li-Jung Tai, Wuxia Fu, Raechel Peralta, Rosie Yu, Eunju Hurh, Erika Paz, Bradley W McEvoy, Brenda F Baker, Nguyen C Pham, Andres Digenio, Steven G Hughes, Richard S Geary, Joseph L Witztum, Rosanne M Crooke, Sotirios Tsimikas
Background Epidemiologic and genomewide association studies have linked loss-of-function variants in ANGPTL3, encoding angiopoietin-like 3, with low levels of plasma lipoproteins. Methods We evaluated antisense oligonucleotides (ASOs) targeting Angptl3 messenger RNA (mRNA) for effects on plasma lipid levels, triglyceride clearance, liver triglyceride content, insulin sensitivity, and atherosclerosis in mice. Subsequently, 44 human participants (with triglyceride levels of either 90 to 150 mg per deciliter [1...
May 24, 2017: New England Journal of Medicine
https://www.readbyqxmd.com/read/28537590/a-two-dimensional-conjugated-aromatic-polymer-via-c-c-coupling-reaction
#17
Wei Liu, Xin Luo, Yang Bao, Yan Peng Liu, Guo-Hong Ning, Ibrahim Abdelwahab, Linjun Li, Chang Tai Nai, Zhi Gang Hu, Dan Zhao, Bin Liu, Su Ying Quek, Kian Ping Loh
The fabrication of crystalline 2D conjugated polymers with well-defined repeating units and in-built porosity presents a significant challenge to synthetic chemists. Yet they present an appealing target because of their desirable physical and electronic properties. Here we report the preparation of a 2D conjugated aromatic polymer synthesized via C-C coupling reactions between tetrabromopolyaromatic monomers. Pre-arranged monomers in the bulk crystal undergo C-C coupling driven by endogenous solid-state polymerization to produce a crystalline polymer, which can be mechanically exfoliated into micrometre-sized lamellar sheets with a thickness of 1 nm...
June 2017: Nature Chemistry
https://www.readbyqxmd.com/read/28535053/the-origin-of-ion-pairing-and-redissociation-of-ionic-liquid
#18
Bong-Seop Lee, Shiang-Tai Lin
We address the possible occurrence of a minimum extent of dissociation (α) of ionic liquid (IL) in IL-solvent mixtures. This phenomenon, known as the re-dissociation of IL, is responsible for many interesting composition-dependent properties in such mixtures. A predictive thermodynamic model is developed to provide semi-quantitative description on the change of α with solvent concentration. It is found that the occurrence of minimum α coincides with the occurrence maximum mean activity coefficient of dissociated ions, indicating better solvation of free, dissociated ions both with decreasing and increasing solvent concentration...
May 23, 2017: Journal of Physical Chemistry. B
https://www.readbyqxmd.com/read/28534828/how-ketamine-affects-livers-of-pregnant-mice-and-developing-mice
#19
Hoi Man Cheung, Tony Chin Hung Chow, David Tai Wai Yew
It is well known that ketamine abuse can induce liver damage in adult addicts, but the effects of ketamine abuse in pregnant mothers on their offspring have received less attention. In this study, we investigated the effects of 5-day ketamine injections (30 mg/kg) to pregnant Institute for Cancer Research (ICR) mice during early gestation or mid-gestation on the aspartate aminotransferase (AST) and alkaline phosphatase (ALP) activities of the mothers and the offspring. We also looked into whether administering ketamine treatment to the mothers had any effects on the extent of fibrosis, cell proliferation and cell death in the livers of the newborns...
May 19, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28534327/-modified-stapled-transanal-rectal-resection-combined-with-perioperative-pelvic-floor-biofeedback-therapy-in-the-treatment-of-obstructed-defecation-syndrome
#20
Lei Chen, Fanqi Meng, Tongsen Zhang, Yinan Liu, Shuang Sha, Si Chen, Jiandong Tai
OBJECTIVE: To investigate the clinical efficacy and safety of modified stapled transanal rectal resection (STARR) combined with perioperative pelvic floor biofeedback therapy (POPFBFT) in treating obstructed defecation syndrome (ODS). METHODS: Thirty female ODS patients underwent modified STARR (resection and suture was performed in rectocele with one staple) combined with POPFBFT in Department of Colorectal and Anal Surgery, The First Hospital of Jilin university from October 2013 to March 2015...
May 25, 2017: Zhonghua Wei Chang Wai Ke za Zhi, Chinese Journal of Gastrointestinal Surgery
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