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https://www.readbyqxmd.com/read/28231677/-a-systematic-review-of-worldwide-natural-history-models-of-colorectal-cancer-classification-transition-rate-and-a-recommendation-for-developing-chinese-population-specific-model
#1
Z F Li, H Y Huang, J F Shi, C G Guo, S M Zou, C C Liu, Y Wang, L Wang, S L Zhu, S L Wu, M Dai
Objective: To review the worldwide studies on natural history models among colorectal cancer (CRC), and to inform building a Chinese population-specific CRC model and developing a platform for further evaluation of CRC screening and other interventions in population in China. Methods: A structured literature search process was conducted in PubMed and the target publication dates were from January 1995 to December 2014. Information about classification systems on both colorectal cancer and precancer on corresponding transition rate, were extracted and summarized...
February 10, 2017: Zhonghua Liu Xing Bing Xue za Zhi, Zhonghua Liuxingbingxue Zazhi
https://www.readbyqxmd.com/read/28231639/cell-cycle-rna-regulons-coordinating-early-lymphocyte-development
#2
REVIEW
Alison Galloway, Martin Turner
Lymphocytes undergo dynamic changes in gene expression as they develop from progenitor cells lacking antigen receptors, to mature cells that are prepared to mount immune responses. While transcription factors have established roles in lymphocyte development, they act in concert with post-transcriptional and post-translational regulators to determine the proteome. Furthermore, the post-transcriptional regulation of RNA regulons consisting of mRNAs whose protein products act cooperatively allows RNA binding proteins to exert their effects at multiple points in a pathway...
February 23, 2017: Wiley Interdisciplinary Reviews. RNA
https://www.readbyqxmd.com/read/28231625/experimental-study-on-1-25-oh-2-d3-amelioration-of-oral-lichen-planus-through-regulating-nf-%C3%AE%C2%BAb-signaling-pathway
#3
Jie Du, Ran Li, Feiyan Yu, Fang Yang, Jinhua Wang, Qingyong Chen, Xiangyu Wang, Bin Zhao, Fang Zhang
OBJECTIVE: To explore the protective function of vitamin D (VD)/vitamin D receptor (VDR) on the development of oral lichen planus (OLP) and elaborate the underling mechanism of it. METHODS: H&E staining, myeloid Peroxidase (MPO) assays, quantitative PCR (qPCR), western blotting and Elisa were used to test the human biopsies and serum. QPCR, western blotting, Elisa and siRNA transfection were also performed in LPS-induced keratinocytes to observe the functions of vitamin D and VDR...
February 23, 2017: Oral Diseases
https://www.readbyqxmd.com/read/28231612/the-pro-inflammatory-cytokine-tnf-%C3%AE-inhibits-lymphatic-pumping-via-activation-of-the-nf-%C3%AE%C2%BAb-inos-signaling-pathway
#4
Yingxuan Chen, Sonia Rehal, Simon Roizes, Hai-Lei Zhu, William C Cole, Pierre-Yves von der Weid
OBJECTIVE: Mesenteric lymphatic vessels pumping, important to propel lymph and immune cells from the intestinal interstitium to the mesenteric lymph nodes, is compromised during intestinal inflammation. The objective of this study was to test the hypothesis that the pro-inflammatory cytokine tumor necrosis factor alpha (TNF-α), is a significant contributor to the inflammation-induced lymphatic contractile dysfunction, and to determine its mode of action. METHODS: Contractile parameters were obtained form isolated rat mesenteric lymphatic vessels mounted on a pressure myograph after 24-h incubation with or without TNF-α...
February 23, 2017: Microcirculation: the Official Journal of the Microcirculatory Society, Inc
https://www.readbyqxmd.com/read/28231578/biomarkers-for-hearing-dysfunction-facts-and-outlook
#5
Lukas Rüttiger, Ulrike Zimmermann, Marlies Knipper
In medicine, biomarkers are a metric for disease state. More generally, a biomarker is anything that can be used as an indicator for a particular disease state or any physiological state of an organism. Here, we introduce functional and molecular biomarkers that are useful for categorizing defined subtypes of hearing disorder, which can help to selectively trace a particular dysfunction of the inner ear and the auditory pathway to disease.
February 24, 2017: ORL; Journal for Oto-rhino-laryngology and its related Specialties
https://www.readbyqxmd.com/read/28231576/molecular-markers-involved-in-tumorigenesis-of-thyroid-carcinoma-focus-on-aggressive-histotypes
#6
Gustavo C Penna, Fernanda Vaisman, Mario Vaisman, Manuel Sobrinho-Simões, Paula Soares
Thyroid cancer derived from follicular cells (TCDFC) comprises well-differentiated (papillary and follicular) carcinoma, poorly differentiated carcinoma, and anaplastic carcinoma. Papillary thyroid carcinoma is the most common endocrine cancer, and its incidence is steadily increasing. Lethality and aggressiveness of TCDFC is inversely correlated with differentiation degree. In this review, an emphasis has been put on molecular markers involved in tumorigenesis of thyroid carcinoma with a focus on aggressive histotypes and the role of such biomarkers in predicting thyroid cancer outcome...
February 24, 2017: Cytogenetic and Genome Research
https://www.readbyqxmd.com/read/28231568/fiber-connections-of-the-caudal-corpus-cerebelli-with-special-reference-to-the-intrinsic-circuitry-in-a-teleost-oreochromis-niloticus
#7
Kosuke Imura, Naoyuki Yamamoto, Masami Yoshimoto, Masato Endo, Kengo Funakoshi, Hironobu Ito
The caudal part of the corpus cerebelli of Nile tilapia can be divided into dorsal and ventral regions. The granule cell layer of the dorsal (dGL) and ventral (vGL) regions of the caudal corpus cerebelli is known to receive indirect inputs from the telencephalon relayed by the nucleus paracommissuralis. The descending pathways are topographically organized, and the dGL and vGL receive inputs from different dorsal telencephalic parts. The caudal corpus cerebelli, in turn, projects extracerebellar efferents. However, it remains unknown how the descending telencephalic inputs are processed within the cerebellum...
February 24, 2017: Brain, Behavior and Evolution
https://www.readbyqxmd.com/read/28231563/hypoxia-pathway-mutations-in-pheochromocytomas-and-paragangliomas
#8
Diana Amorim-Pires, Joana Peixoto, Jorge Lima
Pheochromocytomas (PCC) and sympathetic paragangliomas (PGL) are rare neuroendocrine tumors, which derive from chromaffin cells occurring in the adrenal medulla and extra-adrenal sympathetic paraganglia. PCC and PGL are often benign, catecholamine-producing tumors, responsible for a myriad of symptoms that may be potentially hazardous to the patient. In contrast, nonsecreting parasympathetic PGL, derived from chief cells, develop mainly in the head and neck region. Although PCC/PGL are more commonly sporadic tumors, germline mutations are present in up to 40% of the patients, ranking these tumors among those with the highest degree of heritability...
February 24, 2017: Cytogenetic and Genome Research
https://www.readbyqxmd.com/read/28231559/prostate-cancer-heterogeneity-discovering-novel-molecular-targets-for-therapy
#9
REVIEW
Chiara Ciccarese, Francesco Massari, Roberto Iacovelli, Michelangelo Fiorentino, Rodolfo Montironi, Vincenzo Di Nunno, Francesca Giunchi, Matteo Brunelli, Giampaolo Tortora
Prostate cancer (PCa) shows a broad spectrum of biological and clinical behavior, which represents the epiphenomenon of an extreme genetic heterogeneity. Recent genomic profiling studies have deeply improved the knowledge of the genomic landscape of localized and metastatic PCa. The AR and PI3K/Akt/mTOR signaling pathways are the two most frequently altered, representing therefore interestingly targets for therapy. Moreover, somatic or germline aberrations of DNA repair genes (DRGs) have been observed at high frequency, supporting the potential role of platinum derivatives and PARP inhibitors as effective therapeutic strategies...
February 11, 2017: Cancer Treatment Reviews
https://www.readbyqxmd.com/read/28231545/aqueous-extract-of-cortex-dictamni-protects-h9c2-cardiomyocytes-from-hypoxia-reoxygenation-induced-oxidative-stress-and-apoptosis-by-pi3k-akt-signaling-pathway
#10
Lin Li, Yunfeng Zhou, Yanlin Li, Lili Wang, Lan Sun, Lidong Zhou, Hiderori Arai, Yun Qi, Yang Xu
Ischemia-reperfusion injury is the major manifestation of ischemic heart disease, which facilitates cardiac arrhythmias, heart failure and death. Oxidative stress and apoptosis have been involved in the pathogenesis of myocardial ischemia-reperfusion injury. Modern pharmacological studies have indicated that the extracts and active compounds of Cortex Dictamni exhibit antioxidative and cardiovascular protective activities. This study was designed to investigate the protective effect of aqueous extract of Cortex Dictamni (CDAE) on regulating hypoxia/reoxygenation (H/R)-induced cardiomyocytes oxidative stress and apoptosis...
February 20, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28231466/leaky-gate-model-intensity-dependent-coding-of-pain-and-itch-in-the-spinal-cord
#11
Shuohao Sun, Qian Xu, Changxiong Guo, Yun Guan, Qin Liu, Xinzhong Dong
Coding of itch versus pain has been heatedly debated for decades. However, the current coding theories (labeled line, intensity, and selectivity theory) cannot accommodate all experimental observations. Here we identified a subset of spinal interneurons, labeled by gastrin-releasing peptide (Grp), that receive direct synaptic input from both pain and itch primary sensory neurons. When activated, these Grp(+) neurons generated rarely seen, simultaneous robust pain and itch responses that were intensity dependent...
February 22, 2017: Neuron
https://www.readbyqxmd.com/read/28231463/neural-circuitry-of-wakefulness-and-sleep
#12
REVIEW
Thomas E Scammell, Elda Arrigoni, Jonathan O Lipton
Sleep remains one of the most mysterious yet ubiquitous animal behaviors. We review current perspectives on the neural systems that regulate sleep/wake states in mammals and the circadian mechanisms that control their timing. We also outline key models for the regulation of rapid eye movement (REM) sleep and non-REM sleep, how mutual inhibition between specific pathways gives rise to these distinct states, and how dysfunction in these circuits can give rise to sleep disorders.
February 22, 2017: Neuron
https://www.readbyqxmd.com/read/28231429/two-dimensional-excitonic-photoluminescence-in-graphene-on-a-cu-surface
#13
Youngsin Park, Yooseok Kim, Chang Woo Myung, Robert Anthony Taylor, Christopher C S Chan, Benjamin P L Reid, Tim J Puchtler, Robin J Nicholas, Laishram Tomba Singh, Geunsik Lee, Chan-Cuk Hwang, Chong-Yun Park, Kwang S Kim
Despite having outstanding electrical properties, graphene is unsuitable for optical devices because of its zero band gap. Here, we report two-dimensional excitonic photoluminescence (PL) from graphene grown on a Cu(111) surface, which shows an unexpected and remarkably sharp strong emission near 3.16 eV (full-width at half-maximum ≤ 3meV) and multiple emissions around 3.18 eV. As temperature increases, these emissions blue-shift, displaying the characteristic negative thermal coefficient of graphene. The observed PL originates from the significantly suppressed dispersion of excited electrons in graphene caused by hybridization of graphene π and Cu d orbitals of the 1st and 2nd Cu layers at a shifted saddle point 0...
February 23, 2017: ACS Nano
https://www.readbyqxmd.com/read/28231413/metabolic-chemical-reporters-of-glycans-exhibit-cell-type-selective-metabolism-and-glycoprotein-labeling
#14
Anna R Batt, Balyn W Zaro, Marisol X Navarro, Matthew Robert Pratt
Since the pioneering work by Reutter and co-workers that demonstrated structural flexibility in the carbohydrate biosynthesis and glycosylation pathways, many different labs have used unnatural monosaccharide analogs to perform glycan engineering on the surface of living cells. A subset of these unnatural monosaccharides contain bioorthogonal groups that enable the selective installation of visualization or enrichment tags. These metabolic chemical reporters (MCRs) have proven to be powerful for the unbiased identification of glycoproteins; however they do have certain limitations...
February 23, 2017: Chembiochem: a European Journal of Chemical Biology
https://www.readbyqxmd.com/read/28231410/transcriptomic-analyses-of-rna-binding-proteins-reveal-eif3c-promotes-cell-proliferation-in-hepatocellular-carcinoma
#15
Tangjian Li, Shengli Li, Di Chen, Bing Chen, Tao Yu, Fangyu Zhao, Qifeng Wang, Ming Yao, Shenglin Huang, Zhiao Chen, Xianghuo He
RNA-binding proteins (RBPs) play fundamental roles in the RNA life cycle. The aberrant expression of RBPs is often observed in human disease, including cancer. In this study, we screened for the expression levels of 1,542 human RBPs in The Cancer Genome Atlas liver hepatocellular carcinoma (TCGA LIHC) samples and found 92 consistently up-regulated RBP genes in HCC compared with normal samples. Additionally, we performed a Kaplan-Meier analysis and found that high expression of 15 RBP genes was associated with poor prognosis in patients with HCC...
February 23, 2017: Cancer Science
https://www.readbyqxmd.com/read/28231395/functional-connectivity-in-amygdalar-sensory-pre-motor-networks-at-rest-new-evidence-from-the-human-connectome-project
#16
Nicola Toschi, Andrea Duggento, Luca Passamonti
The word "e-motion" derives from the Latin word "ex-moveo" which literally means "moving away from something / somebody". Emotions are thus fundamental to prime action and goal-directed behavior with obvious implications for individual's survival. However, the brain mechanisms underlying the interactions between emotional and motor cortical systems remain poorly understood. A recent diffusion tensor imaging study in humans has reported the existence of direct anatomical connections between the amygdala and sensory/(pre)motor cortices, corroborating an initial observation in animal research...
February 23, 2017: European Journal of Neuroscience
https://www.readbyqxmd.com/read/28231333/molecular-mechanisms-of-cooperative-binding-of-transcription-factors-runx1-cbf%C3%AE-ets1-on-the-tcr%C3%AE-gene-enhancer
#17
Kota Kasahara, Masaaki Shiina, Ikuo Fukuda, Kazuhiro Ogata, Haruki Nakamura
Ets1 is an essential transcription factor (TF) for several important physiological processes, including cell proliferation and differentiation. Its recognition of the enhancer region of the TCRα gene is enhanced by the cooperative binding of the Runx1-CBFβ heterodimer, with the cancelation of phosphorylation-dependent autoinhibition. The detailed mechanism of this interesting cooperativity between Ets1 and the Runx1-CBFβ heterodimer is still largely unclear. Here, we investigated the molecular mechanisms of this cooperativity, by using molecular dynamics simulations...
2017: PloS One
https://www.readbyqxmd.com/read/28231331/mesenchymal-stromal-cells-mscs-induce-ex-vivo-proliferation-and-erythroid-commitment-of-cord-blood-haematopoietic-stem-cells-cb-cd34-cells
#18
Simone Perucca, Andrea Di Palma, Pier Paolo Piccaluga, Claudia Gemelli, Elisa Zoratti, Giulio Bassi, Edoardo Giacopuzzi, Andrea Lojacono, Giuseppe Borsani, Enrico Tagliafico, Maria Teresa Scupoli, Simona Bernardi, Camilla Zanaglio, Federica Cattina, Valeria Cancelli, Michele Malagola, Mauro Krampera, Mirella Marini, Camillo Almici, Sergio Ferrari, Domenico Russo
A human bone marrow-derived mesenchymal stromal cell (MSCs) and cord blood-derived CD34+ stem cell co-culture system was set up in order to evaluate the proliferative and differentiative effects induced by MSCs on CD34+ stem cells, and the reciprocal influences on gene expression profiles. After 10 days of co-culture, non-adherent (SN-fraction) and adherent (AD-fraction) CD34+ stem cells were collected and analysed separately. In the presence of MSCs, a significant increase in CD34+ cell number was observed (fold increase = 14...
2017: PloS One
https://www.readbyqxmd.com/read/28231304/a-four-day-western-style-dietary-intervention-causes-reductions-in-hippocampal-dependent-learning-and-memory-and-interoceptive-sensitivity
#19
Tuki Attuquayefio, Richard J Stevenson, Megan J Oaten, Heather M Francis
In animals, a Western style diet-high in saturated fat and added sugar-causes impairments in hippocampal-dependent learning and memory (HDLM) and perception of internal bodily state (interoception). In humans, while there is correlational support for a link between Western-style diet, HDLM, and interoception, there is as yet no causal data. Here, healthy individuals were randomly assigned to consume either a breakfast high in saturated fat and added sugar (Experimental condition) or a healthier breakfast (Control condition), over four consecutive days...
2017: PloS One
https://www.readbyqxmd.com/read/28231299/exploration-of-inhibitory-mechanisms-of-curcumin-in-lung-cancer-metastasis-using-a-mirna-transcription-factor-target-gene-network
#20
De-Min Jiao, Li Yan, Li-Shan Wang, Hui-Zhen Hu, Xia-Li Tang, Jun Chen, Jian Wang, You Li, Qing-Yong Chen
The present study was aimed to unravel the inhibitory mechanisms of curcumin for lung cancer metastasis via constructing a miRNA-transcription factor (TF)-target gene network. Differentially expressed miRNAs between human high-metastatic non-small cell lung cancer 95D cells treated with and without curcumin were identified using a TaqMan human miRNA array followed by real-time PCR, out of which, the top 6 miRNAs (miR-302b-3p, miR-335-5p, miR-338-3p, miR-34c-5p, miR-29c-3p and miR-34a-35p) with more verified target genes and TFs than other miRNAs as confirmed by a literature review were selected for further analysis...
2017: PloS One
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