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https://www.readbyqxmd.com/read/27914138/therapeutic-response-for-functional-abdominal-pain-in-children-with-occult-constipation-laxatives-versus-prokinetic-drugs
#1
Eun Kyo Ha, Homin Jang, Su Jin Jeong
The relationship between functional abdominal pain (FAP) and occult constipation (OC) in children who did not meet the Rome III criteria for constipation has rarely been reported. This study aimed to estimate the prevalence of OC in patients with FAP and to compare the effectiveness of prokinetic drugs and laxatives for FAP and OC. Pediatric outpatients (n = 212; aged 4-15 years) who satisfied the Rome III criteria for childhood FAP were divided into 2 groups based on Leech scores: group 1 < 8; group 2 ≥ 8...
January 2017: Journal of Korean Medical Science
https://www.readbyqxmd.com/read/27914011/activation-of-alpha-7-nicotinic-acetylcholine-receptor-reduces-brain-edema-in-mice-with-ischemic-stroke-and-bone-fracture
#2
Dingquan Zou, Man Luo, Zhenying Han, Lei Zhan, Wan Zhu, Shuai Kang, Chen Bao, Zhao Li, Jeffrey Nelson, Rui Zhang, Hua Su
Stroke is an important risk factor for bone fracture. We showed previously that bone fracture at the acute stage of ischemic stroke worsens, and activation of α-7 nicotinic acetylcholine receptor (α-7 nAchR) improves, stroke recovery by attenuating inflammation. We hypothesized that activation of α-7 nAchR also improves the blood-brain barrier (BBB) integrity. Permanent distal middle cerebral artery occlusion (pMCAO) was performed on C57BL/6J mice followed by tibia fracture 1 day later. Mice were treated with 0...
December 2, 2016: Molecular Neurobiology
https://www.readbyqxmd.com/read/27913994/sox2-inhibition-promotes-promoter-demethylation-of-cdx2-to-facilitate-gastric-intestinal-metaplasia
#3
Haijing Niu, Yuchen Jia, Tao Li, Bingzhong Su
BACKGROUND: Gastric intestinal metaplasia (IM) is regarded as a premalignant lesion, conferring risks for gastric cancer development. An intestinal transcription factor, CDX2, plays a vital role in establishing and maintaining IM. SOX2, an HMG-box transcription factor, is expressed in normal gastric mucosa and downregulated in IM. Therefore, it is important to elucidate the mutual interaction of SOX2 and CDX2 in gastric IM. AIMS: This study aims to evaluate the negative correlation between SOX2 and CDX2 in mRNA expression and promoter methylation and to illuminate the effect of SOX2 on the promoter methylation of CDX2...
December 2, 2016: Digestive Diseases and Sciences
https://www.readbyqxmd.com/read/27913960/neuroimaging-abnormalities-in-clade-c-hiv-are-independent-of-tat-genetic-diversity
#4
Robert H Paul, Sarah Phillips, Jacqueline Hoare, David H Laidlaw, Ryan Cabeen, Gayla R Olbricht, Yuqing Su, Dan J Stein, Susan Engelbrecht, Soraya Seedat, Lauren E Salminen, Laurie M Baker, Jodi Heaps, John Joska
Controversy remains regarding the neurotoxicity of clade C human immunodeficiency virus (HIV-C). When examined in preclinical studies, a cysteine to serine substitution in the C31 dicysteine motif of the HIV-C Tat protein (C31S) results in less severe brain injury compared to other viral clades. By contrast, patient cohort studies identify significant neuropsychological impairment among HIV-C individuals independent of Tat variability. The present study clarified this discrepancy by examining neuroimaging markers of brain integrity among HIV-C individuals with and without the Tat substitution...
December 2, 2016: Journal of Neurovirology
https://www.readbyqxmd.com/read/27913852/differential-effect-of-early-antibiotic-intervention-on-bacterial-fermentation-patterns-and-mucosal-gene-expression-in-the-colon-of-pigs-under-diets-with-different-protein-levels
#5
Chuanjian Zhang, Miao Yu, Yuxiang Yang, Chunlong Mu, Yong Su, Weiyun Zhu
The study aimed to evaluate the effects of early antibiotic intervention (EAI) on bacterial fermentation patterns and mucosal immune markers in the colon of pigs with different protein level diets. Eighteen litters of piglets at day (d) 7 were fed creep feed without or with growth promoting antibiotics until d 42. At d 42, pigs within each group were further randomly assigned to a normal- or low-crude protein (CP) diet. At d 77 and d 120, five pigs per group were slaughtered for analyzing colonic bacteria, metabolites, and mucosal gene expressions...
December 3, 2016: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/27913828/engineering-and-evolution-of-saccharomyces-cerevisiae-to-produce-biofuels-and-chemicals
#6
Timothy L Turner, Heejin Kim, In Iok Kong, Jing-Jing Liu, Guo-Chang Zhang, Yong-Su Jin
To mitigate global climate change caused partly by the use of fossil fuels, the production of fuels and chemicals from renewable biomass has been attempted. The conversion of various sugars from renewable biomass into biofuels by engineered baker's yeast (Saccharomyces cerevisiae) is one major direction which has grown dramatically in recent years. As well as shifting away from fossil fuels, the production of commodity chemicals by engineered S. cerevisiae has also increased significantly. The traditional approaches of biochemical and metabolic engineering to develop economic bioconversion processes in laboratory and industrial settings have been accelerated by rapid advancements in the areas of yeast genomics, synthetic biology, and systems biology...
December 3, 2016: Advances in Biochemical Engineering/biotechnology
https://www.readbyqxmd.com/read/27913699/risk-and-association-of-hla-with-oxcarbazepine-induced-cutaneous-adverse-reactions-in-asians
#7
Chun-Bing Chen, Yi-Hsin Hsiao, Tony Wu, Mo-Song Hsih, Wichittra Tassaneeyakul, Teekayu P Jorns, Chonlaphat Sukasem, Chien-Ning Hsu, Shih-Chi Su, Wan-Chun Chang, Rosaline Chung-Yee Hui, Chia-Yu Chu, Yi-Ju Chen, Ching-Ying Wu, Chao-Kai Hsu, Tsu-Man Chiu, Pei-Lun Sun, Hua-En Lee, Chin-Yi Yang, Pei-Han Kao, Chih-Hsun Yang, Hsin-Chun Ho, Jing-Yi Lin, Ya-Ching Chang, Ming-Jing Chen, Chun-Wei Lu, Chau Yee Ng, Kang-Ling Kuo, Chien-Yio Lin, Ching-Sheng Yang, Ding-Ping Chen, Pi-Yueh Chang, Tsu-Lan Wu, Yu-Jr Lin, Yi-Ching Weng, Tseng-Tong Kuo, Shuen-Iu Hung, Wen-Hung Chung
OBJECTIVE: To investigate the risk and genetic association of oxcarbazepine-induced cutaneous adverse reactions (OXC-cADRs), including Stevens-Johnson syndrome/toxic epidermal necrolysis (SJS/TEN), in Asian populations (Chinese and Thai). METHODS: We prospectively enrolled patients with OXC-cADRs in Taiwan and Thailand from 2006 to 2014, and analyzed the clinical course, latent period, drug dosage, organ involvement, complications, and mortality. We also investigated the carrier rate of HLA-B*15:02 and HLA-A*31:01 of patients with OXC-cADRs and compared to OXC-tolerant controls...
December 2, 2016: Neurology
https://www.readbyqxmd.com/read/27913610/whole-exome-sequencing-of-thymic-neuroendocrine-tumor-with-ectopic-acth-syndrome
#8
Yanli Li, Ying Peng, Xiuli Jiang, Yulong Cheng, Weiwei Zhou, Tingwei Su, Jing Xie, Xu Zhong, Dalong Song, Luming Wu, Liwen Fan, Min Li, Jie Hong, Weiqing Wang, Guang Ning, Yanan Cao
OBJECTIVE: Thymic neuroendocrine tumor is the second-most prevalent cause of ectopic adrenocorticotropic hormone (ACTH) syndrome (EAS), which is a rare disease characterized by ectopic ACTH oversecretion from nonpituitary tumors. However, the genetic abnormalities of thymic neuroendocrine tumors with EAS remain largely unknown. We aim to elucidate the genetic abnormalities and identify the somatic mutations of potential tumor-related genes of thymic neuroendocrine tumors with EAS by whole exome sequencing...
February 2017: European Journal of Endocrinology
https://www.readbyqxmd.com/read/27913299/the-inhibitory-effect-of-beta-lapachone-on-rankl-induced-osteoclastogenesis
#9
Dong Ryun Gu, Joon No Lee, Gi-Su Oh, Hyung Jin Kim, Min Seuk Kim, Seoung Hoon Lee
β-lapachone (β-L) is a substrate of reduced nicotinamide adenine dinucleotide (NADH): quinone oxidoreductase 1 (NQO1). NQO1 reduces quinones to hydroquinones using NADH as an electron donor and consequently increases the intracellular NAD+/NADH ratio. The activation of NQO1 by β-L has beneficial effects on several metabolic syndromes, such as obesity, hypertension, and renal injury. However, the effect of β-L on bone metabolism remains unclear. Here, we show that β-L might be a potent inhibitor of receptor activator of nuclear factor-κB ligand (RANKL)-induced osteoclastogenesis...
November 29, 2016: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/27913284/cardiac-proteasome-functional-insufficiency-plays-a-pathogenic-role-in-diabetic-cardiomyopathy
#10
Jie Li, Wenxia Ma, Guihua Yue, Yaoliang Tang, Il-Man Kim, Neal L Weintraub, Xuejun Wang, Huabo Su
BACKGROUND: Diabetic cardiomyopathy is a major risk factor in diabetic patients but its pathogenesis remains poorly understood. The ubiquitin-proteasome system (UPS) facilitates protein quality control by degrading unnecessary and damaged proteins in eukaryotic cells, and dysfunction of UPS is implicated in various cardiac diseases. However, the overall functional status of the UPS and its pathophysiological role in diabetic cardiomyopathy have not been determined. METHODS AND RESULTS: Type I diabetes was induced in wild-type and transgenic mice expressing a UPS functional reporter (GFPdgn) by injections of streptozotocin (STZ)...
November 29, 2016: Journal of Molecular and Cellular Cardiology
https://www.readbyqxmd.com/read/27913204/the-selective-bcl-2-inhibitor-venetoclax-a-bh3-mimetic-does-not-dysregulate-intracellular-ca-2-signaling
#11
Tamara Vervloessem, Hristina Ivanova, Tomas Luyten, Jan B Parys, Geert Bultynck
Anti-apoptotic B cell-lymphoma-2 (Bcl-2) proteins are emerging as therapeutic targets in a variety of cancers for precision medicines, like the BH3-mimetic drug venetoclax (ABT-199), which antagonizes the hydrophobic cleft of Bcl-2. However, the impact of venetoclax on intracellular Ca(2+) homeostasis and dynamics in cell systems has not been characterized in detail. Here, we show that venetoclax did not affect Ca(2+)-transport systems from the endoplasmic reticulum (ER) in permeabilized cell systems. Venetoclax (1μM) did neither trigger Ca(2+) release by itself nor affect agonist-induced Ca(2+) release in a variety of intact cell models...
November 29, 2016: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/27913185/mir-346-promotes-the-biological-function-of-breast-cancer-cells-by-targeting-srcin1-and-reduces-chemosensitivity-to-docetaxel
#12
Fan Yang, Long-Ji Luo, Lei Zhang, Dan-Dan Wang, Su-Jin Yang, Li Ding, Jian Li, Dan Chen, Rong Ma, Jian-Zhong Wu, Jin-Hai Tang
MicroRNAs (miRNAs) are a class of highly conserved small noncoding RNAs that play pivotal roles at the post-transcriptional level in the biological function of various cancers, including breast cancer. In our study, miR-346 mimic, inhibitor, negative control or si-SRCIN1 were transfected into MCF-7 and MCF-7/Doc cells, respectively. Quantitative real time PCR (qRT-PCR) was used to measure miR-346 and SRCIN1 mRNA expressions and western blot was used to detect the expression of SRCIN1 in protein level. CCK-8 and colony formation were employed to verify cell viability and proliferation...
November 29, 2016: Gene
https://www.readbyqxmd.com/read/27912885/tetrandrine-an-alkaloid-from-s-tetrandra-exhibits-anti-hypertensive-and-sleep-enhancing-effects-in-shr-via-different-mechanisms
#13
Yuan-Li Huang, Su-Ying Cui, Xiang-Yu Cui, Qing Cao, Hui Ding, Jin-Zhi Song, Xiao Hu, Hui Ye, Bin Yu, Zhao-Fu Sheng, Zi-Jun Wang, Yong-He Zhang
BACKGROUND: Sleep disorders have been found to be associated with hypertension in both cross-sectional and longitudinal epidemiological studies. Tetrandrine, a major component of Stephania tetrandra, is well known as an antihypertensive agent. The anti-hypertension mechanism mainly relies on its L-type calcium channel blocking property. In the previous study, tetrandrine revealed both anti-hypertension and hypnotic effects in spontaneously hypertensive rats (SHRs). PURPOSE: This study aims to elucidate whether the antihypertensive mechanism of tetrandrine in SHRs is relevant to its hypnotic effect...
December 15, 2016: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
https://www.readbyqxmd.com/read/27912882/tenuifolin-a-saponin-derived-from-radix-polygalae-exhibits-sleep-enhancing-effects-in-mice
#14
Qing Cao, Yong Jiang, Su-Ying Cui, Peng-Fei Tu, Yue-Mei Chen, Xiao-Li Ma, Xiang-Yu Cui, Yuan-Li Huang, Hui Ding, Jin-Zhi Song, Bin Yu, Zhao-Fu Sheng, Zi-Jun Wang, Ya-Ping Xu, Guang Yang, Hui Ye, Xiao Hu, Yong-He Zhang
BACKGROUND: Radix Polygalae, the dried root of Polygala tenuifolia, has been extensively used as a traditional Chinese medicine for promoting intelligence and tranquilization. Polygalasaponins extracted from the root of P. tenuifolia possess evident anxiolytic and sedative-hypnotic activities. Previous studies have reported that tenuifolin was a major constituent of polygalasaponins. PURPOSE: The currently study aims to investigate the hypnotic effect and possible mechanism of tenuifolin in freely moving mice...
December 15, 2016: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
https://www.readbyqxmd.com/read/27911863/correlation-of-long-non-coding-rna-h19-expression-with-cisplatin-resistance-and-clinical-outcome-in-lung-adenocarcinoma
#15
Qi Wang, Ningning Cheng, Xuefei Li, Hui Pan, Chunyu Li, Shengxiang Ren, Chunxia Su, Weijing Cai, Chao Zhao, Limin Zhang, Caicun Zhou
The acquired drug resistance would influence the efficacy of cisplatin-based chemotherapy in non-small-cell lung cancer. The present study aimed to investigate the correlation of long non-coding RNA (lncRNA) H19 with cisplatin-resistance and clinical outcome in lung adenocarcinoma. In our study, the expression of H19 in cisplatin-resistant A549/DDP cells was unregulated. Knockdown of H19 restored the response of A549/DDP cells to cisplatin. H19-mediated chemosensitivity enhancement was associated with metastasis, induction of G0/G1 cell-cycle arrest, cell proliferation, and increased apoptosis...
November 29, 2016: Oncotarget
https://www.readbyqxmd.com/read/27911855/glutamine-and-glutaminolysis-are-required-for-efficient-replication-of-infectious-spleen-and-kidney-necrosis-virus-in-chinese-perch-brain-cells
#16
Xiaozhe Fu, Xianqin Hu, Ningqiu Li, Feifei Zheng, Xingxing Dong, Jing Duan, Qiang Lin, Jiagang Tu, Lijuan Zhao, Zhibin Huang, Jianguo Su, Li Lin
Viruses rely on host cellular metabolism for energy and macromolecule synthesis during their replication. Infectious spleen and kidney necrosis virus (ISKNV) causes significant economic losses in the Chinese perch (Siniperca chuatsi) industry worldwide. However, little is known about the relationship between ISKNV replication and cellular metabolism. Using transcriptomic analysis, we observed that glutamine metabolism in Chinese perch brain (CPB) cells is altered during ISKNV infection. Moreover, ISKNV replication was decreased in CPB cells cultured in the glutamine-depleted medium...
November 29, 2016: Oncotarget
https://www.readbyqxmd.com/read/27911807/enhanced-limonene-production-in-cyanobacteria-reveals-photosynthesis-limitations
#17
Xin Wang, Wei Liu, Changpeng Xin, Yi Zheng, Yanbing Cheng, Su Sun, Runze Li, Xin-Guang Zhu, Susie Y Dai, Peter M Rentzepis, Joshua S Yuan
Terpenes are the major secondary metabolites produced by plants, and have diverse industrial applications as pharmaceuticals, fragrance, solvents, and biofuels. Cyanobacteria are equipped with efficient carbon fixation mechanism, and are ideal cell factories to produce various fuel and chemical products. Past efforts to produce terpenes in photosynthetic organisms have gained only limited success. Here we engineered the cyanobacterium Synechococcus elongatus PCC 7942 to efficiently produce limonene through modeling guided study...
November 23, 2016: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/27911530/experimental-ten-photon-entanglement
#18
Xi-Lin Wang, Luo-Kan Chen, W Li, H-L Huang, C Liu, C Chen, Y-H Luo, Z-E Su, D Wu, Z-D Li, H Lu, Y Hu, X Jiang, C-Z Peng, L Li, N-L Liu, Yu-Ao Chen, Chao-Yang Lu, Jian-Wei Pan
We report the first experimental demonstration of quantum entanglement among ten spatially separated single photons. A near-optimal entangled photon-pair source was developed with simultaneously a source brightness of ∼12  MHz/W, a collection efficiency of ∼70%, and an indistinguishability of ∼91% between independent photons, which was used for a step-by-step engineering of multiphoton entanglement. Under a pump power of 0.57 W, the ten-photon count rate was increased by about 2 orders of magnitude compared to previous experiments, while maintaining a state fidelity sufficiently high for proving the genuine ten-particle entanglement...
November 18, 2016: Physical Review Letters
https://www.readbyqxmd.com/read/27911377/hybrid-cut-an-improved-sectioning-method-for-recalcitrant-plant-tissue-samples
#19
Tien-Kuan Chen, Hui-Ting Yang, Su-Chiung Fang, Yi-Chen Lien, Ting-Ting Yang, Swee-Suak Ko
Maintaining plant section integrity is essential for studying detailed anatomical structures at the cellular, tissue, or even organ level. However, some plant cells have rigid cell walls, tough fibers and crystals (calcium oxalate, silica, etc.), and high water content that often disrupt tissue integrity during plant tissue sectioning. This study establishes a simple Hybrid-Cut tissue sectioning method. This protocol modifies a paraffin-based sectioning technique and improves the integrity of tissue sections from different plants...
November 23, 2016: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/27911253/luteolibacter-flavescens-sp-nov-isolated-from-deep-seawater
#20
Chongya Zhang, Bolin Dong, Ruijun Wang, Yue Su, Shuaibo Han, Xiaoyun Yu, Zhe Zhao, Geyi Fu, Cong Sun, Min Wu
A novel Gram-stain-negative, rod-shaped, non-motile strain, designated GKXT, was isolated from deep seawater. Strain GKXT was able to grow at 20-35 °C (optimum, 25 °C), pH 5.5-9.5 (optimum, 7.5) and 0-4.0 % (w/v) NaCl (optimum, 1.0 %). The major fatty acids were C16:1 ω9c (15.4 %), C16:0 (18.4 %), C14:0 (12.0 %), iso-C14:0 (30.1 %) and anteiso-C15:0 (5.7 %). Strain GKXT contained phosphatidylethanolamine (PE), phosphatidylmethylethanoamine (PME), phosphatidylglycerol (PG), diphosphatidylglycerol (DPG) and one unidentified glycolipid (GL) as the main polar lipids...
December 1, 2016: International Journal of Systematic and Evolutionary Microbiology
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