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https://www.readbyqxmd.com/read/27918441/tp53-microrna-interplay-in-hepatocellular-carcinoma
#1
REVIEW
Daniela Pollutri, Laura Gramantieri, Luigi Bolondi, Francesca Fornari
The role of microRNAs as oncogenes and tumor suppressor genes has emerged in several cancers, including hepatocellular carcinoma (HCC). The pivotal tumor suppressive role of p53-axis is indicated by the presence of inactivating mutations in TP53 gene in nearly all cancers. A close interaction between these two players, as well as the establishment of complex p53/miRNAs loops demonstrated the strong contribution of p53-effector miRNAs in enhancing the p53-mediated tumor suppression program. On the other hand, the direct and indirect targeting of p53, as well as the regulation of its stability and activity by specific microRNAs, underlie the importance of the fine-tuning of p53 pathway, affecting the cell fate of damaged/transformed cells...
December 2, 2016: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/27912816/mesenchymal-stem-cells-and-their-role-in-dental-medicine
#2
REVIEW
Xueli Mao, Yao Liu, Chider Chen, Songtao Shi
Mesenchymal stem cells (MSCs) have been discovered in almost every organ and tissue. MSCs are a heterogeneous population of cells with the capacity to self-renew and show multilineage differentiation. MSCs possess immunomodulatory properties by regulating multiple types of immune cells. They are emerging as a promising therapeutic agent, and have been widely used for cell-based tissue regeneration and immune therapies. A further understanding of the biological characteristics of MSCs is a prerequisite to develop more efficient MSC-based therapies...
January 2017: Dental Clinics of North America
https://www.readbyqxmd.com/read/27904930/micrornas-in-bone-diseases
#3
REVIEW
L Gennari, S Bianciardi, D Merlotti
MicroRNAs are small, noncoding single-stranded RNAs that have emerged as important posttranscriptional regulators of gene expression, with an essential role in vertebrate development and different biological processes. This review highlights the recent advances in the function of miRNAs and their roles in bone remodeling and bone diseases. MicroRNAs (miRNAs) are a class of small (∼22 nt), noncoding single-stranded RNAs that have emerged as important posttranscriptional regulators of gene expression. They are essential for vertebrate development and play critical roles in different biological processes related to cell differentiation, activity, metabolism, and apoptosis...
November 30, 2016: Osteoporosis International
https://www.readbyqxmd.com/read/27902410/inhibition-of-quorum-sensing-controlled-virulence-factors-of-pseudomonas-aeruginosa-by-murraya-koenigii-essential-oil-a-study-in-a-caenorhabditis-elegans-infectious-model
#4
P Sankar Ganesh, Ravishankar Vittal Rai
The global emergence of antibiotic resistant strains of Pseudomonas aeruginosa poses a major threat in hospital environments as well as in the community. P. aeruginosa is an opportunistic human pathogen and it also infects a wide range of model organisms including the nematode Caenorhabditis elegans. Quorum sensing (QS) mediates cell-to-cell communication in bacteria and has an important role in regulating virulence genes, antibiotic resistance and biofilm formation which are crucial for establishment of the infection...
November 3, 2016: Journal of Medical Microbiology
https://www.readbyqxmd.com/read/27890782/bromodomain-histone-readers-and-cancer
#5
REVIEW
Abhinav K Jain, Michelle C Barton
Lysine acetylation of histone proteins is a fundamental post-translational modification that regulates chromatin structure and plays an important role in gene transcription. Aberrant levels of histone lysine acetylation are associated with the development of several diseases. Acetyl-lysine modifications create docking sites for bromodomains, which are structurally conserved modules present in transcription-associated proteins that are termed "reader" proteins. Bromodomain-containing reader proteins are part of multi-protein complexes that regulate transcription programs, often associated with profound phenotypic changes...
November 24, 2016: Journal of Molecular Biology
https://www.readbyqxmd.com/read/27879536/mental-health-promotion-for-junior-physicians-working-in-emergency-medicine-evaluation-of-a-pilot-study
#6
Stefanie Mache, Monika Bernburg, Lisa Baresi, David Groneberg
OBJECTIVES: Work-related stress is highly prevalent among physicians working in emergency medicine. Mental health promotion interventions offer the chance to strengthen physicians' health, work ability, and performance. The aim of this study was to implement and evaluate a mental health promotion program for junior physicians working in emergency medicine. METHODS: In total, 70 junior physicians working in emergency medicine were randomized to either the mental health promotion program (n=35) or a waitlist control arm (n=35)...
November 22, 2016: European Journal of Emergency Medicine: Official Journal of the European Society for Emergency Medicine
https://www.readbyqxmd.com/read/27837555/cryopreservation-in-closed-bag-systems-as-an-alternative-to-clean-rooms-for-preparations-of-peripheral-blood-stem-cells
#7
Silvia Spoerl, Robert Peter, Angela M Krackhardt
Autologous and allogeneic stem cell transplantation (SCT) represents a therapeutic option widely used for hematopoietic malignancies. One important milestone in the development of this treatment strategy was the development of effective cryopreservation technologies resulting in a high quality with respect to cell viability as well as lack of contamination of the graft.Stem cell preparations have been initially performed within standard laboratories as it is routinely still the case in many countries. With the emergence of cleanrooms, manufacturing of stem cell preparations within these facilities has become a new standard mandatory in Europe...
2016: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/27813044/-application-of-the-objective-structured-clinical-examination-osce-in-german-medical-schools-an-inventory
#8
S Müller, U Dahmen, U Settmacher
Introduction: The German medical licensing regulations, as amended by the government in 2002, now require the assessment of clinical skills in undergraduate medical education. As a result, the Objective Structured Clinical Examination (OSCE) was introduced as an assessment tool in many medical schools. This article provides a detailed inventory of the current application of the OSCE assessment in Germany. Methods: From June to September 2015, the implementation of the OSCE in all 36 German medical schools was investigated using semi-structured telephone interviews and email correspondence...
November 3, 2016: Das Gesundheitswesen
https://www.readbyqxmd.com/read/27807271/top-down-models-in-biology-explanation-and-control-of-complex-living-systems-above-the-molecular-level
#9
REVIEW
Giovanni Pezzulo, Michael Levin
It is widely assumed in developmental biology and bioengineering that optimal understanding and control of complex living systems follows from models of molecular events. The success of reductionism has overshadowed attempts at top-down models and control policies in biological systems. However, other fields, including physics, engineering and neuroscience, have successfully used the explanations and models at higher levels of organization, including least-action principles in physics and control-theoretic models in computational neuroscience...
November 2016: Journal of the Royal Society, Interface
https://www.readbyqxmd.com/read/27802864/glucokinase-mutation-a-rare-cause-of-recurrent-hypoglycemia-in-adults-a-case-report-and-literature-review
#10
Oluremi N Ajala, David M Huffman, Ibrahim I Ghobrial
BACKGROUND: Hypoglycemia occurs frequently in patients both in the inpatient and outpatient settings. While most hypoglycemia unrelated to diabetes treatment results from excessive endogenous insulin action, rare cases involve functional and congenital mutations in glycolytic enzymes of insulin regulation. CASE: A 21-year-old obese woman presented to the emergency department with complaints of repeated episodes of lethargy, syncope, dizziness, and sweating. She was referred from an outside facility on suspicion of insulinoma, with severe hypoglycemia unresponsive to repeated dextrose infusions...
2016: Journal of Community Hospital Internal Medicine Perspectives
https://www.readbyqxmd.com/read/27796590/poisonous-or-non-poisonous-plants-dna-based-tools-and-applications-for-accurate-identification
#11
REVIEW
Valerio Mezzasalma, Ioannis Ganopoulos, Andrea Galimberti, Laura Cornara, Emanuele Ferri, Massimo Labra
Plant exposures are among the most frequently reported cases to poison control centres worldwide. This is a growing condition due to recent societal trends oriented towards the consumption of wild plants as food, cosmetics, or medicine. At least three general causes of plant poisoning can be identified: plant misidentification, introduction of new plant-based supplements and medicines with no controls about their safety, and the lack of regulation for the trading of herbal and phytochemical products. Moreover, an efficient screening for the occurrence of plants poisonous to humans is also desirable at the different stages of the food supply chain: from the raw material to the final transformed product...
October 30, 2016: International Journal of Legal Medicine
https://www.readbyqxmd.com/read/27791997/stem-cells-and-vascular-regenerative-medicine
#12
J-F Stoltz, D Bensoussan, N De Isla, L Zhang, Z Han, J Magdalou, C Huselstein, J S Ye, N Li, V Decot, L Reppel
Most human tissues do not regenerate spontaneously, which is why "cell therapy" are promising alternative treatments. The Principe is simple: patients' or donors' cells are collected and introduced into the injured tissues or organs directly or in a porous 3D material, with or without modification of their properties. This concept of regenerative medicine is an emerging field which can be defined as "the way to improve health and quality of life by restoring, maintaining, or enhancing tissue and organ functions"...
October 27, 2016: Clinical Hemorheology and Microcirculation
https://www.readbyqxmd.com/read/27791177/towards-a-transcriptome-based-theranostic-platform-for-unfavorable-breast-cancer-phenotypes
#13
Andrey S Dobroff, Sara D'Angelo, Bedrich L Eckhardt, Fortunato Ferrara, Daniela I Staquicini, Marina Cardó-Vila, Fernanda I Staquicini, Diana N Nunes, Kisu Kim, Wouter H P Driessen, Amin Hajitou, Lesley C Lomo, Marc Barry, Savitri Krishnamurthy, Aysegul Sahin, Wendy A Woodward, Eric R Prossnitz, Robin L Anderson, Emmanuel Dias-Neto, Ursa A Brown-Glaberman, Melanie E Royce, Naoto T Ueno, Massimo Cristofanilli, Gabriel N Hortobagyi, Serena Marchiò, Juri G Gelovani, Richard L Sidman, Wadih Arap, Renata Pasqualini
Inflammatory breast carcinoma (IBC) is one of the most lethal forms of human breast cancer, and effective treatment for IBC is an unmet clinical need in contemporary oncology. Tumor-targeted theranostic approaches are emerging in precision medicine, but only a few specific biomarkers are available. Here we report up-regulation of the 78-kDa glucose-regulated protein (GRP78) in two independent discovery and validation sets of specimens derived from IBC patients, suggesting translational promise for clinical applications...
October 24, 2016: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/27769165/distinct-gene-expression-program-dynamics-during-erythropoiesis-from-human-induced-pluripotent-stem-cells-compared-with-adult-and-cord-blood-progenitors
#14
Alison T Merryweather-Clarke, Alex J Tipping, Abigail A Lamikanra, Rui Fa, Basel Abu-Jamous, Hoi Pat Tsang, Lee Carpenter, Kathryn J H Robson, Asoke K Nandi, David J Roberts
BACKGROUND: Human-induced pluripotent stem cells (hiPSCs) are a potentially invaluable resource for regenerative medicine, including the in vitro manufacture of blood products. HiPSC-derived red blood cells are an attractive therapeutic option in hematology, yet exhibit unexplained proliferation and enucleation defects that presently preclude such applications. We hypothesised that substantial differential regulation of gene expression during erythroid development accounts for these important differences between hiPSC-derived cells and those from adult or cord-blood progenitors...
October 21, 2016: BMC Genomics
https://www.readbyqxmd.com/read/27755687/seasonal-control-of-mammalian-energy-balance-recent-advances-in-the-understanding-of-daily-torpor-and-hibernation
#15
Martin Jastroch, Sylvain Giroud, Perry Barrett, Fritz Geiser, Gerhard Heldmaier, Annika Herwig
Endothermic mammals and birds require intensive energy turnover to sustain high body temperatures and metabolic rates. To cope with energetic bottlenecks associated with the change of seasons, and to minimise energy expenditure, complex mechanisms and strategies, such as daily torpor and hibernation, are used. During torpor metabolic depression and low body temperatures save energy. However, these bouts of torpor lasting for hours to weeks are interrupted by active 'euthermic' phases with high body temperatures...
October 18, 2016: Journal of Neuroendocrinology
https://www.readbyqxmd.com/read/27753514/clinical-significance-of-receptor-shedding-platelet-gpvi-as-an-emerging-diagnostic-and-therapeutic-tool
#16
Madhumita Chatterjee, Meinrad Gawaz
Platelet membrane bedecked with a wide array of receptors offers a platform to regulate platelet responsiveness, thrombotic propensity, inflammatory disposition, and immune reactivity under diverse pathophysiological conditions. Ectopic proteolytic cleavage of such receptors irreversibly inactivates receptor-mediated intracellular signaling governing cellular functions, further releases soluble fragments into circulation which might modulate functions of target cells. Glycoprotein VI-(GPVI) is a membrane glycoprotein expressed in platelets and megakaryocytes...
October 18, 2016: Platelets
https://www.readbyqxmd.com/read/27737746/the-adipokine-cardiovascular-lifestyle-network-translation-to-clinical-practice
#17
Jeffrey I Mechanick, Shan Zhao, W Timothy Garvey
Adipokines are peptides, secreted by adipocytes and other cell types with targets in other tissues, participating in a complex network of humoral factors involved in obesity, insulin resistance, and cardiovascular (CV) disease. This review describes recent information about adipokine effects on the CV system. Rather than simply providing a listing of adipokines and their respective effects, network analysis is used to enhance understanding. Various relationships and emergent processes in the adipokine-CV system network are discussed, with the most significant interactors being responses to hypoxia, regulation of cell migration, effects on blood coagulation, and platelet activation...
October 18, 2016: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/27730273/naturalistic-assessment-of-demand-for-cigarettes-snus-and-nicotine-gum
#18
Jeffrey S Stein, A George Wilson, Mikhail N Koffarnus, Michael C Judd, Warren K Bickel
RATIONALE: Behavioral economic measures of demand provide estimates of tobacco product abuse liability and may predict effects of policy-related price regulation on consumption of existing and emerging tobacco products. OBJECTIVE: In the present study, we examined demand for snus, a smokeless tobacco product, in comparison to both cigarettes and medicinal nicotine. We used both a naturalistic method in which participants purchased these products for use outside the laboratory, as well as laboratory-based self-administration procedures...
October 11, 2016: Psychopharmacology
https://www.readbyqxmd.com/read/27722140/the-immunomodulatory-activity-of-mori-folium-the-leaf-of-morus-alba-l-in-raw-264-7-macrophages-in-vitro
#19
Da Hye Kwon, Ji Min Cheon, Eun-Ok Choi, Jin Woo Jeong, Ki Won Lee, Ki Young Kim, Sung Goo Kim, Suhkmann Kim, Su Hyun Hong, Cheol Park, Hye-Jin Hwang, Yung Hyun Choi
BACKGROUND: Immunoregulatory elements have emerged as useful immunotherapeutic agents against cancer. In traditional medicine, Mori folium, the leaf of Morus alba L. (Moraceae), has been used for various medicinal purposes; however, the immunomodulatory effects have not been fully identified. We evaluated the immunoenhancing potential of water extract of Mori folium (WEMF) in murine RAW264.7 macrophages. METHODS: RAW264.7 cells were treated with WEMF for 24 hours and cell viability was detected by an MTT method...
September 2016: Journal of Cancer Prevention
https://www.readbyqxmd.com/read/27694668/what-can-we-learn-about-the-processes-of-regulation-of-tuberculosis-medicines-from-the-experiences-of-health-policy-and-system-actors-in-india-tanzania-and-zambia
#20
Kabir Sheikh, Mukund Uplekar
BACKGROUND: The unregulated availability and irrational use of tuberculosis (TB) medicines is a major issue of public health concern globally. Governments of many low- and middle-income countries (LMICs) have committed to regulating the quality and availability of TB medicines, but with variable success. Regulation of TB medicines remains an intractable challenge in many settings, but the reasons for this are poorly understood. The objective of this paper is to elaborate processes of regulation of quality and availability of TB medicines in three LMICs - India, Tanzania, and Zambia - and to understand the factors that constrain and enable these processes...
March 9, 2016: International Journal of Health Policy and Management
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