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https://www.readbyqxmd.com/read/28726800/role-of-nicotinamide-n-methyltransferase-in-dorsal-striatum-in-cocaine-place-preference
#1
Li Luo, Fei-Fei Shang, Hailei Long, Linhong Jiang, Ruiming Zhu, Qian Zhao, Hui Gu, Jueying Kong, Wei Xu, Yinglan Zhao, Xiaobo Cen
Nicotinamide N-methyltransferase (NNMT) transfers the methyl from S-adenosyl-L-methionine (SAM) to nicotinamide (NA) to produce S-adenosyl-L-homocysteine (SAH) and 1-methylnicotinamide (MeN). NNMT has been implicated in a variety of diseases; however, the role of NNMT in drug addiction is largely unknown. Here, we found that the expression of Nnmt was significantly upregulated in the dorsal striatum (DS) of cocaine-conditioned mice. Cocaine significantly decreased SAM/SAH ratio levels in the DS, which was accompanied with the decreased activities of Rac1 and RhoA...
July 20, 2017: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28718957/elevated-levels-of-il-22-and-il-17a-producing-t-helper-cells-in-cholangiocarcinomarelated-to-liver-fluke-infection
#2
Si-Biao Su, Jian-Feng Zhang, Fei-Fei Huang, Yu Cen, Hai-Xing Jiang
Cholangiocarcinoma (CCA) associated with liver fluke infection appears to involve inflammatory and immune processes, but whether these involve the proinflammatory cytokine interleukin-17A (IL-17A) and proliferative cytokine interleukin-22 (IL-22) is unclear.We compared levels of IL-22- or IL-17A-producing T helper cells and cytokine levels in 30 CCA patients with long-term liver fluke infection, 40 patients with liver-fluke infection but not CCA and 16 healthy controls. Analyses were performed using immunohistochemistry, flow cytometry, ELISA and RT-PCR...
July 18, 2017: Microbiology and Immunology
https://www.readbyqxmd.com/read/28712006/an-inframe-trinucleotide-deletion-in-mtrr-exon-1-is-associated-with-the-risk-of-spina-bifida
#3
Jun Zhang, Xiao-Lu Dai, Gui-Cen Liu, Juan Wang, Xue-Yi Ren, Mu-Hua Jin, Nan-Nan Mi, Shu-Qin Wang
Maternal genetic variants of enzymes in folate-homocysteine metabolic network are significantly correlative with the risk of spina bifida. To survey the genetic causality, the genotypes of three women having spina bifida fetuses from two unrelated Chinese families were screened in candidate alleles. Polymerase chain reaction, capillary electrophoresis and Sanger sequencing were employed to recognize the allelic variation. A trinucleotide deletion (c.4_6delAGG) was identified in the first exon of MTRR. All the three women showed the novel clinical variation including one heterozygous and two homozygous...
July 15, 2017: Neuromolecular Medicine
https://www.readbyqxmd.com/read/28709648/deficiency-in-cold-inducible-rna-binding-protein-attenuates-acute-respiratory-distress-syndrome-induced-by-intestinal-ischemia-reperfusion
#4
Cindy Cen, Joseph McGinn, Monowar Aziz, Weng-Lang Yang, Joaquin Cagliani, Jeffrey M Nicastro, Gene F Coppa, Ping Wang
BACKGROUND: Intestinal ischemia-reperfusion can occur in shock and mesenteric occlusive diseases, causing significant morbidity and mortality. Aside from local injury, intestinal ischemia-reperfusion can result in remote organ damage, particularly in the lungs. Cold-inducible RNA-binding protein (CIRP) was identified as a novel inflammatory mediator. We hypothesized that a deficiency in CIRP would protect the lungs during intestinal ischemia-reperfusion injury. METHODS: Intestinal ischemia was induced in adult male C57BL/6 wild-type and CIRP knock-out (CIRP(-/-)) mice via clamping of the superior mesenteric artery for 60 minutes...
July 11, 2017: Surgery
https://www.readbyqxmd.com/read/28709393/microbiome-associated-with-severe-caries-in-canadian-first-nations-children
#5
M Agnello, J Marques, L Cen, B Mittermuller, A Huang, N Chaichanasakul Tran, W Shi, X He, R J Schroth
Young Indigenous children in North America suffer from a higher degree of severe early childhood caries (S-ECC) than the general population, leading to speculation that the etiology and characteristics of the disease may be distinct in this population. To address this knowledge gap, we conducted the first microbiome analysis of an Indigenous population using modern molecular techniques. We investigated the caries-associated microbiome among Canadian First Nations children with S-ECC. Thirty First Nations children <72 mo of age with S-ECC and 20 caries-free children were recruited in Winnipeg, Canada...
July 1, 2017: Journal of Dental Research
https://www.readbyqxmd.com/read/28705767/common-and-distinct-dysfunctional-patterns-contribute-to-triple-network-model-in-schizophrenia-and-depression-a-preliminary-study
#6
Yuchao Jiang, Mingjun Duan, Xi Chen, Xin Chang, Hui He, YingJia Li, Cheng Luo, Dezhong Yao
BACKGROUND: Schizophrenia (SCH) and depression (DEP) are prevalent psychiatric disorders and share common and distinguished elements in their pathophysiology. A triple network model composed of the default mode network (DMN), salience network (SN) and central executive network (CEN) may represent a major abnormality across several psychiatric disorders including SCH and DEP. However, common and distinct dysfunctional patterns between SCH and DEP across three core networks remain unclear...
July 10, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/28704742/q10r-mutation-in-scn9a-gene-is-associated-with-generalized-epilepsy-with-febrile-seizures-plus
#7
Zhidong Cen, Yuting Lou, Yufan Guo, Jianda Wang, Jianhua Feng
No abstract text is available yet for this article.
June 30, 2017: Seizure: the Journal of the British Epilepsy Association
https://www.readbyqxmd.com/read/28702086/transcriptome-and-key-genes-expression-related-to-carbon-fixation-pathways-in-chlorella-py-zu1-cells-and-their-growth-under-high-concentrations-of-co2
#8
Yun Huang, Jun Cheng, Hongxiang Lu, Yong He, Junhu Zhou, Kefa Cen
BACKGROUND: The biomass yield of Chlorella PY-ZU1 drastically increased when cultivated under high CO2 condition compared with that cultivated under air condition. However, less attention has been given to the microalgae photosynthetic mechanisms response to different CO2 concentrations. The genetic reasons for the higher growth rate, CO2 fixation rate, and photosynthetic efficiency of microalgal cells under higher CO2 concentration have not been clearly defined yet. RESULTS: In this study, the Illumina sequencing and de novo transcriptome assembly of Chlorella PY-ZU1 cells cultivated under 15% CO2 were performed and compared with those of cells grown under air...
2017: Biotechnology for Biofuels
https://www.readbyqxmd.com/read/28700962/studies-on-the-structural-changes-during-curing-of-epoxy-and-its-blend-with-ctbn
#9
Kavita Srivastava, Ashwani Kumar Rathore, Deepak Srivastava
Cashew nut shell liquid (CNSL), an agricultural renewable resource material, produces natural phenolic distillates such as cardanol. Cardanol condenses with formaldehyde at the ortho- and para-position of the phenolic ring under acidic or alkaline condition to yield a series of polymers of novolac- or resol-type phenolic resins. These phenolic resins may further be modified by epoxidation with epichlorohydrin to duplicate the performance of such phenolic-type novolacs (CFN). The structural changes during curing of blend samples of epoxy and carboxyl terminated poly (butadiene-co-acrylonitrile) (CTBN) were studies by Fourier-transform infrared (FTIR) spectrophotometer...
July 3, 2017: Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
https://www.readbyqxmd.com/read/28699630/prevalence-and-clinical-correlation-of-dysphagia-in-parkinson-disease-a-study-on-chinese-patients
#10
X Ding, J Gao, C Xie, B Xiong, S Wu, Z Cen, Y Lou, D Lou, F Xie, W Luo
BACKGROUND/OBJECTIVES: Dysphagia is relatively common in patients with Parkinson disease (PD) and can have a negative impact on their quality of life; therefore, it is imperative that its prevalence in PD patients is studied. The aim of this study was to explore the prevalence and clinical correlation of dysphagia in Chinese PD patients. SUBJECTS/METHODS: We recruited 116 Chinese PD patients. A videofluoroscopic study of swallowing (VFSS) was used to identify dysphagia...
July 12, 2017: European Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28699014/predictive-models-for-identifying-the-binding-activity-of-structurally-diverse-chemicals-to-human-pregnane-x-receptor
#11
Cen Yin, Xianhai Yang, Mengbi Wei, Huihui Liu
Toxic chemicals entered into human body would undergo a series of metabolism, transport and excretion, and the key roles played in there processes were metabolizing enzymes, which was regulated by the pregnane X receptor (PXR). However, some chemicals in environment could activate or antagonize human pregnane X receptor, thereby leading to a disturbance of normal physiological systems. In this study, based on a larger number of 2724 structurally diverse chemicals, we developed qualitative classification models by the k-nearest neighbor method...
July 12, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28689763/remodeling-of-brain-lipidome-in-methamphetamine-sensitized-mice
#12
Linhong Jiang, Hui Gu, Yiyun Lin, Wei Xu, Ruiming Zhu, Jueying Kong, Li Luo, Hailei Long, Bing Liu, Bo Chen, Yinglan Zhao, Xiaobo Cen
Lipids are predominant components of the brain and key regulators for neural structure and function. The effect of methamphetamine (METH) on behavior, cognition as well as memory has been intensively investigated; however, the impact of METH on brain lipid profiles is largely unknown. Here, we used a global lipidomic approach to investigate brain lipidome of METH-sensitized mice. We found that repeated METH significantly modified the lipidome in the hippocampus, prefrontal cortex (PFC) and striatum. Interestingly, nucleus accumbens showed no obvious alteration in lipidomic profiling...
July 6, 2017: Toxicology Letters
https://www.readbyqxmd.com/read/28688920/single-cell-rna-sequencing-reveals-an-altered-gene-expression-pattern-as-a-result-of-crispr-cas9-mediated-deletion-of-gene-33-mig6-and-chronic-exposure-to-hexavalent-chromium-in-human-lung-epithelial-cells
#13
Soyoung Park, Xiaowen Zhang, Cen Li, Changhong Yin, Jiangwei Li, John T Fallon, Weihua Huang, Dazhong Xu
Gene 33 (Mig6, ERRFI1) is an adaptor protein with multiple cellular functions. We recently reported that depletion of this protein promotes lung epithelial cell transformation induced by hexavalent chromium [Cr(VI)]. However, the early molecular events that mediate this process are not clear. In the present study, we used single-cell RNA sequencing to compare gene expression profiles between BEAS-2B lung epithelial cells chronically exposed to a sublethal dose of Cr(VI) with or without CRISPR/cas9-mediated deletion of Gene 33...
July 5, 2017: Toxicology and Applied Pharmacology
https://www.readbyqxmd.com/read/28686596/genetic-control-of-the-root-system-in-rice-under-normal-and-drought-stress-conditions-by-genome-wide-association-study
#14
Xiaokai Li, Zilong Guo, Yan Lv, Xiang Cen, Xipeng Ding, Hua Wu, Xianghua Li, Jianping Huang, Lizhong Xiong
A variety of adverse conditions including drought stress severely affect rice production. Root system plays a critical role in drought avoidance, which is one of the major mechanisms of drought resistance. In this study, we adopted genome-wide association study (GWAS) to dissect the genetic basis controlling various root traits by using a natural population consisting of 529 representative rice accessions. A total of 413 suggestive associations, containing 143 significant associations, were identified for 21 root traits, such as maximum root length, root volume, and root dry weight under normal and drought stress conditions at the maturation stage...
July 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28683952/identification-and-profile-of-micrornas-in-xiang-pig-testes-in-four-different-ages-detected-by-solexa-sequencing
#15
Zhi-Yu Luo, Xin-Lan Dai, Xue-Qin Ran, Yong-Xiu Cen, Xi Niu, Shi-Hui Huang, Jia-Fu Wang
To further understand the role of microRNA (miRNA) during testicular development, we constructed four small RNA libraries from the testes of the Chinese indigenous Xiang pig at four different ages, which were sequenced using high-throughput Solexa deep sequencing methods. It yielded over 23 million high-quality reads and 1,342,579 unique sequences. At two and three months of age, the proportion which represented miRNAs was the most abundant class of small RNAs, but it was gradually replaced by the category that represented piRNAs in adult testes...
June 28, 2017: Theriogenology
https://www.readbyqxmd.com/read/28683579/communication-disability-in-fiji-community-self-help-and-help-seeking-support
#16
Suzanne C Hopf, Sharynne McLeod, Sarah H McDonagh, Cen Wang, Epenisa N Rakanace
PURPOSE: To understand how a Fijian community supports people with communication disability (PWCD) and whether their support is associated with participant demographics. METHOD: Thematic analysis of 144 questionnaires that asked about participants' actions to support a fictional child and adult with communication disability. RESULT: Participant responses fell into two categories: what they would do directly (self-help) and people and places where they would seek assistance (help-seeking)...
July 7, 2017: International Journal of Speech-language Pathology
https://www.readbyqxmd.com/read/28676248/the-weekend-effect-on-morbidity-and-mortality-among-pediatric-epilepsy-admissions
#17
Timothy Wen, Daniel R Kramer, Steve Sirot, Lianne Ho, Alimohammad S Moalem, Steven Y Cen, David Millett, Christianne Heck, R Aaron Robison, William J Mack, Charles Y Liu
BACKGROUND: Pediatric epilepsy is one of the most common neurological disorders with low mortality and high morbidity, often requiring hospitalization. Weekend admissions have been shown to be associated with worse outcomes compared with their weekday counterparts. To date, no study has assessed the impact of weekend admission on clinical and quality outcomes in the pediatric epilepsy population. METHODS: Children with epilepsy were identified from the 2000, 2003, 2006, and 2009 Kids Inpatient Database...
June 2, 2017: Pediatric Neurology
https://www.readbyqxmd.com/read/28671697/direct-intramolecular-amination-of-tryptophan-esters-to-prepare-pyrrolo-2-3-b-indoles
#18
Zhao-Ying Yang, Tian Tian, Ya-Fei Du, Shi-Yi Li, Cen-Cen Chu, Lu-Ying Chen, Dan Li, Jia-Yi Liu, Bin Wang
A metal-free iodine-catalyzed intramolecular amination has been developed for the practical synthesis of pyrrolo[2,3-b]indoles from readily available tryptophan esters. The transformation has been applied to a wide array of substrates and can be performed on gram scale under very mild conditions.
July 3, 2017: Chemical Communications: Chem Comm
https://www.readbyqxmd.com/read/28665920/lineage-conversion-of-mouse-fibroblasts-to-pancreatic-%C3%AE-cells
#19
Tianjin Liu, Liangliang Sun, Beige Jiang, Limei Li, Jin Cen, Xiaotao Chen, Zhaoyun Zhang, Qinghua Wang, Xin Cheng, Yongquan Shi, Lijian Hui
α-cells, which synthesize glucagon, also support β-cell survival and have the capacity to transdifferentiate into β-cells. However, the role of α-cells in pathological conditions and their putative clinical applications remain elusive due in large part to the lack of mature α-cells. Here, we present a new technique to generate functional α-like cells. α-like cells (iAlpha cells) were generated from mouse fibroblasts by transduction of transcription factors, including Hhex, Foxa3, Gata4, Pdx1 and Pax4, which induce α-cell-specific gene expression and glucagon secretion in response to KCl and Arg stimulation...
June 30, 2017: Experimental & Molecular Medicine
https://www.readbyqxmd.com/read/28658680/submucosal-fibrosis-in-achalasia-patients-is-a-rare-cause-of-aborted-peroral-endoscopic-myotomy-procedures
#20
Qiu-Ning Wu, Xiao-Yue Xu, Xiao-Cen Zhang, Mei-Dong Xu, Yi-Qun Zhang, Wei-Feng Chen, Ming-Yan Cai, Wen-Zheng Qin, Jian-Wei Hu, Li-Qing Yao, Quan-Lin Li, Ping-Hong Zhou
Background and aims Peroral endoscopic myotomy (POEM) is now an established treatment for esophageal achalasia. The standard protocol ensures a smooth operation in most patients, but technical challenges and failures exist and little is known about the incidence, causes, and impact of aborted procedures. Here, using a large patient cohort, we attempted to answer these questions. Methods All patients admitted for planned POEM between August 2010 and July 2015 underwent chart review. Aborted POEM was defined as the inability to finish the procedure after submucosal injection...
June 28, 2017: Endoscopy
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