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commitment signals in relation

Pan Li, Bin Lv, Xiaoqing Jiang, Ting Wang, Xianghui Ma, Nianwei Chang, Xiaoying Wang, Xiumei Gao
ETHNOPHARMACOLOGICAL RELEVANCE: Shenfu injection (SFI) is a commercial medicinal product approved by the China Food and Drug Administration that is widely used in the treatment of stroke and coronary heart disease. However, the material basis and the mechanism of SFI are not fully understood. AIM OF THE STUDY: With network pharmacology analysis, our research committed to identify the anti-inflammatory ingredients and mechanism of SFI by combining high-throughput screening...
October 19, 2016: Journal of Ethnopharmacology
Amel Dudakovic, Emily T Camilleri, Scott M Riester, Christopher R Paradise, Martina Gluscevic, Thomas M O'Toole, Roman Thaler, Jared M Evans, Huihuang Yan, Malayannan Subramaniam, John R Hawse, Gary S Stein, Martin A Montecino, Meghan E McGee-Lawrence, Jennifer J Westendorf, Andre J van Wijnen
Perturbations in skeletal development and bone degeneration may result in reduced bone mass and quality leading to greater fracture risk. Bone loss is mitigated by bone protective therapies, but there is a clinical need for new bone-anabolic agents. Previous work has demonstrated that enhancer of zeste homolog 2 (Ezh2), a histone 3 lysine 27 (H3K27) methyltransferase, suppressed differentiation of osteogenic progenitors. Here, we investigated if inhibition of Ezh2 can be leveraged for bone stimulatory applications...
October 10, 2016: Journal of Biological Chemistry
L F S Batista, Y T Utsunomiya, T B F da Silva, R A Dias, T Y Tomokane, A D Pacheco, V L R da Matta, F T Silveira, M Marcondes, C M Nunes, M D Laurenti
A genome-wide association study (GWAS) could unravel the complexity of the cell-mediated immunity (CMI) to canine leishmaniasis (CanL). Thereby we committed to scan 110,165 single-nucleotide polymorphisms (SNPs) aiming to identify chromosomal regions associated to leishmanin skin test (LST), lymphocyte proliferation assay (LPA) and cytokines responses to further understanding the role played by the CMI in the outcome of the natural Leishmania infantum infection in 189 dogs. Based on LST and LPA, four CMI profiles were identified (LST-/LPA-, LST+/LPA-, LST-/LPA+ and LST+/LPA+), which were not associated to subclinical infected or diseased dogs...
October 10, 2016: Infection and Immunity
Sara Cadavid, Maria Soledad Beato
Memory researchers have long been captivated by the nature of memory distortions and have made efforts to identify the neural correlates of true and false memories. However, the underlying mechanisms of avoiding false memories by correctly rejecting related lures remains underexplored. In this study, we employed a variant of the Deese/Roediger-McDermott paradigm to explore neural signatures of committing and avoiding false memories. ERP were obtained for True recognition, False recognition, Correct rejection of new items, and, more importantly, Correct rejection of related lures...
2016: PloS One
U Smith, B B Kahn
Obesity, the major cause of the current global epidemic of type 2 diabetes (T2D), induces insulin resistance in peripheral insulin target tissues. Several mechanisms have been identified related to cross-talk between adipose tissue, skeletal muscle and liver. These mechanisms involve both increased free fatty acid release and altered secretion of adipokines from adipose tissue. A major determinant of metabolic health is the ability of subcutaneous adipose tissue (SAT) to store excess fat rather than allowing it to accumulate in ectopic depots including liver (i...
October 3, 2016: Journal of Internal Medicine
Zohreh Makoolati, Mansoureh Movahedin, Mehdi Forouzandeh-Moghadam
The present study aims to confirm and analyze germ-cell related patterns and specific gene expressions at a very early stage of cell commitment. Following the XY cytogenetic confirmation of the CCE mouse embryonic stem cells (mESCs) line, cells were cultured to form embrioid bodies (EBs). Expression pattern assessment of the Mvh, Stra8, α6 and β1 integrin genes in ESC and 1-3-day-old EB showed that all genes except α6 integrin were expressed in the ESC. The mean calibration of Mvh, Stra8 and α6 integrin expression significantly increased upon EB formation compared to the ESCs...
September 30, 2016: Bioscience Reports
Kelly McDaniel, Fanyin Meng, Nan Wu, Keisaku Sato, Julie Venter, Francesca Bernuzzi, Pietro Invernizzi, Tianhao Zhou, Konstantina Kyritsi, Ying Wan, Qiaobing Huang, Paolo Onori, Heather Francis, Eugenio Gaudio, Shannon Glaser, Gianfranco Alpini
BACKGROUND & AIMS: Biliary-committed progenitor cells (small cholangiocytes, SMCCs) from small bile ducts are more resistant to hepatobiliary injury than large mouse cholangiocytes (LGCCs) from large bile ducts. The definitive endoderm marker, FoxA2 is the key transcriptional factor that regulates cell differentiation and tissue regeneration. Our aim was to characterize the translational role of FoxA2 during cholestatic liver injury. METHODS: mRNA expression in SMCCs and LGCCs was assessed by PCR array analysis...
September 17, 2016: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
Flavia Román, Carla Urra, Omar Porras, Ana María Pino, Clifford J Rosen, Juan Pablo Rodríguez
Oxidative stress (OS) derived from an increase in intracellular reactive oxygen species (ROS) is a major determinant of aging and lifespan. It has also been associated with several age-related disorders, like postmenopausal osteoporosis of Mesenchymal stem cells (MSCs). MSCs are the common precursors for osteoblasts and adipocytes; appropriate commitment and differentiation of MSCs into a specific phenotype is modulated, among other factors, by ROS balance. MSCs have shown more resistance to ROS than differentiated cells, and their redox status depends on complex and abundant anti-oxidant mechanisms...
September 15, 2016: Journal of Cellular Biochemistry
Tariq Hamid, Yuanyuan Xu, Mohamed Ameen Ismahil, Qianhong Li, Steven P Jones, Aruni Bhatnagar, Roberto Bolli, Sumanth D Prabhu
Despite expansion of resident cardiac stem cells (CSCs; c-kit(+)Lin(-)) after myocardial infarction, endogenous repair processes are insufficient to prevent adverse cardiac remodeling and heart failure (HF). This suggests that the microenvironment in post-ischemic and failing hearts compromises CSC regenerative potential. Inflammatory cytokines, such as tumor necrosis factor-α (TNF), are increased after infarction and in HF; whether they modulate CSC function is unknown. As the effects of TNF are specific to its two receptors (TNFRs), we tested the hypothesis that TNF differentially modulates CSC function in a TNFR-specific manner...
September 2, 2016: American Journal of Physiology. Heart and Circulatory Physiology
Aditi Sood, Mengqi Dong, Heather J Melichar
Thymic selection proceeds in a unique and highly organized thymic microenvironment resulting in the generation of a functional, self-tolerant T cell repertoire. In vitro models to study T lineage commitment and development have provided valuable insights into this process. However, these systems lack the complete three-dimensional thymic milieu necessary for T cell development and, therefore, are incomplete approximations of in vivo thymic selection. Some of the challenges related to modeling T cell development can be overcome by using in situ models that provide an intact thymic microenvironment that fully supports thymic selection of developing T cells...
2016: Journal of Visualized Experiments: JoVE
S Treviño-Siller, L E Pacheco-Magaña, P Bonilla-Fernández, C Rueda-Neria, L Arenas-Monreal
OBJECTIVE: The purpose of this article is to describe a public school-based educational intervention (EI) designed to increase knowledge, improve attitudes, and change practices related to road safety. METHODS: We used a mixed-methods evaluation of a road traffic safety baseline diagnosis conducted in 4 public schools, 2 primary and 2 secondary. Research was organized into 4 phases: (1) diagnosis, (2) EI design, (3) implementation, and (4) evaluation. We used convenience sampling (n = 219 students) across schools and applied a pre-/posttest design based on quantitative and qualitative data...
August 30, 2016: Traffic Injury Prevention
Alvaro Banderas, Mihaly Koltai, Alexander Anders, Victor Sourjik
Animals are known to adjust their sexual behaviour depending on mate competition. Here we report similar regulation for mating behaviour in a sexual unicellular eukaryote, the budding yeast Saccharomyces cerevisiae. We demonstrate that pheromone-based communication between the two mating types, coupled to input attenuation by recipient cells, enables yeast to robustly monitor relative mate abundance (sex ratio) within a mixed population and to adjust their commitment to sexual reproduction in proportion to their estimated chances of successful mating...
2016: Nature Communications
Erica Manesso, Hao Yuan Kueh, George Freedman, Ellen V Rothenberg, Carsten Peterson
BACKGROUND/OBJECTIVES: A cascade of gene activations under the control of Notch signalling is required during T-cell specification, when T-cell precursors gradually lose the potential to undertake other fates and become fully committed to the T-cell lineage. We elucidate how the gene/protein dynamics for a core transcriptional module governs this important process by computational means. METHODS: We first assembled existing knowledge about transcription factors known to be important for T-cell specification to form a minimal core module consisting of TCF-1, GATA-3, BCL11B, and PU...
2016: PloS One
Roumayne Fernandes Vieira Andrade, Maria Alix Leite Araújo, Maria Inês Costa Dourado, Angelica Barbosa Espinosa Miranda, Claudia Bastos da Silveira Reis
The objective of this study was to investigate factors associated with intimate partner violence after disclosing the diagnosis of sexually transmissible diseases (STDs) in Fortaleza, Ceará State, Brazil. This cross-sectional study enrolled 221 individuals treated at STD clinics. Multivariate logistic regression was performed. A total of 28.1% of individuals committed some type of intimate partner violence after disclosure of the diagnosis. Committing intimate partner violence was associated with alcohol use (OR = 2...
July 21, 2016: Cadernos de Saúde Pública
Lijuan Li, Yong Gao
Covert speech communications may be used by terrorists to commit crimes through Internet. Steganalysis aims to detect secret information in covert communications to prevent crimes. Herein, based on the average zero crossing rate of the odd-even difference (AZCR-OED), a steganalysis algorithm for blended speech is proposed; it can detect the existence and estimate the embedding rate of blended speech. First, the odd-even difference (OED) of the speech signal is calculated and divided into frames. The average zero crossing rate (ZCR) is calculated for each OED frame, and the minimum average ZCR and AZCR-OED of the entire speech signal are extracted as features...
2016: SpringerPlus
Raymond Liang, Saghi Ghaffari
Anaemia or decreased blood haemoglobin is the most common blood disorder often characterized by reduced red blood cell (RBC) numbers. RBCs are produced from differentiation and commitment of haematopoietic stem cells to the erythroid lineage by a process called erythropoiesis. Coordination of erythropoietin receptor signalling with several erythroid transcription factors including GATA1 is essential for this process. A number of additional players that are critical for RBC production have been identified in recent years...
September 2016: British Journal of Haematology
Thomas J Lynch, Preston J Anderson, Weiliang Xie, Adrianne K Crooke, Xiaoming Liu, Scott R Tyler, Meihui Luo, David M Kusner, Yulong Zhang, Traci Neff, Daniel C Burnette, Katherine S Walters, Michael J Goodheart, Kalpaj R Parekh, John F Engelhardt
Wnt signaling is required for lineage commitment of glandular stem cells (SCs) during tracheal submucosal gland (SMG) morphogenesis from the surface airway epithelium (SAE). Whether similar Wnt-dependent processes coordinate SC expansion in adult SMGs following airway injury remains unknown. We found that two Wnt-reporters in mice (BAT-gal and TCF/Lef:H2B-GFP) are co-expressed in actively cycling SCs of primordial glandular placodes and in a small subset of adult SMG progenitor cells that enter the cell cycle 24 hrs following airway injury...
June 24, 2016: Stem Cells
Meike Simann, Solange Le Blanc, Verena Schneider, Viola Zehe, Martin Lüdemann, Norbert Schütze, Franz Jakob, Tatjana Schilling
Controlling the adipo-osteogenic lineage decision of trabecular human bone marrow stromal cells (hBMSCs) in favor of osteogenesis represents a promising approach for osteoporosis therapy and prevention. Previously, Fibroblast Growth Factor 1 (FGF1) and its subfamily member FGF2 were scored as leading candidates to exercise control over skeletal precursor commitment and lineage decision albeit literature results are highly inconsistent. We show here that FGF1 and 2 strongly prevent the osteogenic commitment and differentiation of hBMSCs...
June 16, 2016: Journal of Cellular Biochemistry
Praveena Penmetsa, Srinivas S Pulugurtha
OBJECTIVE: Violation of traffic rules is a major contributing factor of both crashes and fatalities in the United States. This study aims at quantifying risk drivers pose to themselves and other drivers by violating traffic rules. METHOD: The crash data from 2010 to 2013 was gathered for the state of North Carolina. Descriptive analysis was carried out to identify frequent traffic violations and who were committing the traffic violations that resulted in crashes...
June 3, 2016: Traffic Injury Prevention
Mattijs S Lambooij, Ferry Koster
BACKGROUND: Escalation of commitment is the tendency that (innovation) projects continue, even if it is clear that they will not be successful and/or become extremely costly. Escalation prevention potential (EPP), the capability of an organization to stop or steer implementation processes that do not meet their expectations, may prevent an organization of losing time and money on unsuccessful projects. EPP consists of a set of checks and balances incorporated in managerial practices that safeguard management against irrational (but very human) decisions and may limit the escalation of implementation projects...
2016: Implementation Science: IS
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