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https://www.readbyqxmd.com/read/28445988/specific-up-regulation-of-p21-by-a-small-active-rna-sequence-suppresses-human-colorectal-cancer-growth
#1
Lu-Lu Wang, Hui-Hui Guo, Yun Zhan, Chen-Lin Feng, Shuai Huang, Yan-Xing Han, Wen-Sheng Zheng, Jian-Dong Jiang
The double stranded small active RNA (saRNA)- p21-saRNA-322 inhibits tumor growth by stimulating the p21 gene expression. We focused our research of p21-saRNA-322 on colorectal cancer because 1) p21 down-regulation is a signature abnormality of the cancer, and 2) colorectal cancer might be a suitable target for in situ p21-saRNA-322 delivery. The goal of the present study is to learn the activity of p21-saRNA-322 in colorectal cancer. Three human colorectal cancer cell lines, HCT-116, HCT-116 (p53-/-) and HT-29 were transfected with the p21-saRNA-322...
April 11, 2017: Oncotarget
https://www.readbyqxmd.com/read/28445801/an-ahp-based-evaluation-method-for-teacher-training-workshop-on-information-and-communication-technology
#2
Rochelle Irene Lucas, Michael Angelo Promentilla, Aristotle Ubando, Raymond Girard Tan, Kathleen Aviso, Krista Danielle Yu
The emergence of information and communication technology (ICT) has created opportunities for enhancing the learning process at different educational levels. However, its potential benefits can only be fully realized if teachers are properly trained to utilize such tools. The rapid evolution of ICT also necessitates rigorous assessment of training programs by participants. Thus, this study proposes an evaluation framework based on the Analytic Hierarchy Process (AHP) to systematically evaluate such workshops designed for teachers...
April 19, 2017: Evaluation and Program Planning
https://www.readbyqxmd.com/read/28445774/voxresnet-deep-voxelwise-residual-networks-for-brain-segmentation-from-3d-mr-images
#3
REVIEW
Hao Chen, Qi Dou, Lequan Yu, Jing Qin, Pheng-Ann Heng
Segmentation of key brain tissues from 3D medical images is of great significance for brain disease diagnosis, progression assessment and monitoring of neurologic conditions. While manual segmentation is time-consuming, laborious, and subjective, automated segmentation is quite challenging due to the complicated anatomical environment of brain and the large variations of brain tissues. We propose a novel voxelwise residual network (VoxResNet) with a set of effective training schemes to cope with this challenging problem...
April 23, 2017: NeuroImage
https://www.readbyqxmd.com/read/28445769/evidence-for-mast-cell-mediated-zinc-homeostasis-increased-labile-zinc-in-the-hippocampus-of-mast-cell-deficient-mice
#4
Rachel H Kennedy, Amen Wiqas, James P Curley
The dentate gyrus of the hippocampus is a site of adult neurogenesis, and is also known to contain one of the highest concentrations of labile brain zinc (Zn), thought to aid in learning and memory by supporting neurogenesis. At the same time, it is known that unbound Zn, when present at excessive levels, decreases the formation of new neurons. Since mast cells contain Zn transporters capable of moving this essential element across their plasma membrane, as well as Zn-rich granules that are dispelled upon secretion, we reasoned that mast cells contribute to Zn homeostasis in this area of the brain, as they are found in greatest numbers in and around the dentate gyrus...
April 23, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28445755/mapping-ryanodine-binding-sites-in-the-pore-cavity-of-ryanodine-receptors
#5
Van A Ngo, Laura L Perissinotti, Williams Miranda, S R Wayne Chen, Sergei Y Noskov
Ryanodine (Ryd) irreversibly targets ryanodine receptors (RyRs), a family of intracellular calcium release channels essential for many cellular processes ranging from muscle contraction to learning and memory. Little is known of the atomistic details about how Ryd binds to RyRs. In this study, we used all-atom molecular dynamics simulations with both enhanced and bidirectional sampling to gain direct insights into how Ryd interacts with major residues in RyRs that were experimentally determined to be critical for its binding...
April 25, 2017: Biophysical Journal
https://www.readbyqxmd.com/read/28445748/directional-force-originating-from-atp-hydrolysis-drives-the-groel-conformational-change
#6
Jie Liu, Kannan Sankar, Yuan Wang, Kejue Jia, Robert L Jernigan
Protein functional mechanisms usually require conformational changes, and often there are known structures for the different conformational states. However, usually neither the origin of the driving force nor the underlying pathways for these conformational transitions is known. Exothermic chemical reactions may be an important source of forces that drive conformational changes. Here we investigate this type of force originating from ATP hydrolysis in the chaperonin GroEL, by applying forces originating from the chemical reaction...
April 25, 2017: Biophysical Journal
https://www.readbyqxmd.com/read/28445656/learning-what-we-didn-t-know-the-sprint-data-analysis-challenge
#7
Nancy S Burns, Pamela W Miller
No abstract text is available yet for this article.
April 26, 2017: New England Journal of Medicine
https://www.readbyqxmd.com/read/28445624/the-role-of-publicly-funded-family-planning-sites-in-health-insurance-enrollment
#8
Jennifer Yarger, Sara Daniel, M Antonia Biggs, Jan Malvin, Claire D Brindis
CONTEXT: Publicly funded family planning providers are well positioned to help uninsured individuals learn about health insurance coverage options and effectively navigate the enrollment process. Understanding how these providers are engaged in enrollment assistance and the challenges they face in providing assistance is important for maximizing their role in health insurance outreach and enrollment. METHODS: In 2014, some 684 sites participating in California's family planning program were surveyed about their involvement in helping clients enroll in health insurance...
April 26, 2017: Perspectives on Sexual and Reproductive Health
https://www.readbyqxmd.com/read/28445540/individuals-with-severely-impaired-vision-can-learn-useful-orientation-and-mobility-skills-in-virtual-streets-and-can-use-them-to-improve-real-street-safety
#9
Ellen Lambert Bowman, Lei Liu
Virtual reality has great potential in training road safety skills to individuals with low vision but the feasibility of such training has not been demonstrated. We tested the hypotheses that low vision individuals could learn useful skills in virtual streets and could apply them to improve real street safety. Twelve participants, whose vision was too poor to use the pedestrian signals were taught by a certified orientation and mobility specialist to determine the safest time to cross the street using the visual and auditory signals made by the start of previously stopped cars at a traffic-light controlled street intersection...
2017: PloS One
https://www.readbyqxmd.com/read/28445489/video-quality-assessment-using-motion-compensated-temporal-filtering-and-manifold-feature-similarity
#10
Yang Song, Mei Yu, Gangyi Jiang, Feng Shao, Zongju Peng
Well-performed Video quality assessment (VQA) method should be consistent with human visual systems for better prediction accuracy. In this paper, we propose a VQA method using motion-compensated temporal filtering (MCTF) and manifold feature similarity. To be more specific, a group of frames (GoF) is first decomposed into a temporal high-pass component (HPC) and a temporal low-pass component (LPC) by MCTF. Following this, manifold feature learning (MFL) and phase congruency (PC) are used to predict the quality of temporal LPC and temporal HPC respectively...
2017: PloS One
https://www.readbyqxmd.com/read/28445215/promoting-learning-and-patient-care-through-shared-reflection-a-conceptual-framework-for-team-reflexivity-in-health-care
#11
Jan B Schmutz, Walter J Eppich
Health care teams are groups of highly skilled experts who may often form inexpert teams because of a lack of collective competence. Because teamwork and collaboration form the foundation of effective clinical practice, factors that promote collective competence demand exploration. The authors review team reflexivity (TR), a concept from psychology and management literatures, and how it could contribute to the collective competence of health care teams. TR captures a team's ability to reflect collectively on group objectives, strategies, goals, processes, and outcomes of past, current, and future performance to process key information and adapt accordingly...
April 25, 2017: Academic Medicine: Journal of the Association of American Medical Colleges
https://www.readbyqxmd.com/read/28445213/learner-patient-and-supervisor-features-are-associated-with-different-types-of-cognitive-load-during-procedural-skills-training-implications-for-teaching-and-instructional-design
#12
Justin L Sewell, Christy K Boscardin, John Q Young, Olle Ten Cate, Patricia S O'Sullivan
PURPOSE: Cognitive load theory, focusing on limits of the working memory, is relevant to medical education; however, factors associated with cognitive load during procedural skills training are not well characterized. The authors sought to determine how features of learners, patients/tasks, settings, and supervisors were associated with three types of cognitive load among learners performing a specific procedure, colonoscopy, to identify implications for procedural teaching. METHOD: Data were collected through an electronically administered survey sent to 1,061 U...
April 25, 2017: Academic Medicine: Journal of the Association of American Medical Colleges
https://www.readbyqxmd.com/read/28445190/cognitive-learning-and-its-future-in-urology-surgical-skills-teaching-and-assessment
#13
Somayeh B Shafiei, Ahmed A Hussein, Khurshid A Guru
PURPOSE OF REVIEW: The aim of this study is to provide an overview of the current status of novel cognitive training approaches in surgery and to investigate the potential role of cognitive training in surgical education. RECENT FINDINGS: Kinematics of end-effector trajectories, as well as cognitive state features of surgeon trainees and mentors have recently been studied as modalities to objectively evaluate the expertise level of trainees and to shorten the learning process...
April 25, 2017: Current Opinion in Urology
https://www.readbyqxmd.com/read/28445100/remap-a-framework-for-goals-of-care-conversations
#14
Julie W Childers, Anthony L Back, James A Tulsky, Robert M Arnold
Conversations regarding goals of care with patients who have advanced cancer still occur too late, and oncologists say they lack the training to have these conversations effectively. Experts recommend a number of strategies when having these discussions, including discussing prognosis, responding to patient emotion, exploring values, and often making a recommendation for medical treatments that fit those values. To help learners, from residents to attending oncologists, learn these complex conversational skills, we have developed a framework with a mnemonic, REMAP: Reframe, Expect emotion, Map out patient goals, Align with goals, and Propose a plan...
April 26, 2017: Journal of Oncology Practice
https://www.readbyqxmd.com/read/28444766/endoplasmic-reticulum-stress-mediates-distinct-impacts-of-sevoflurane-on-different-subfields-of-immature-hippocampus
#15
Gang Zhu, Lei Tao, Ronglin Wang, Ying Xue, Xingqin Wang, Shaosong Yang, Xude Sun, Guodong Gao, Zixu Mao, Qian Yang
Sevoflurane, a typical inhaled anesthetic, is widely used in patients of all ages during surgery. The negative effects, such as inducing cell death and damaging spatial memory, of sevoflurane on neurodevelopment have raised increasing concerns in recent years. However, the molecular mechanism remains unclear. The current study focused on the crucial role of endoplasmic reticulum (ER) stress in sevoflurane-induced hippocampal injury. Three-week-old rats were exposed to sevoflurane or control air for 5h with or without ER stress inhibitor (4-phenylbutyric acid, 4-PBA) injection...
April 26, 2017: Journal of Neurochemistry
https://www.readbyqxmd.com/read/28444714/is-testosterone-important-in-lut-function-in-men-and-women-ici-rs-2015
#16
REVIEW
Jasmin Katrin Badawi, Ruud Bosch, Jens Christian Djurhuus, Ann T Hanna-Mitchell
AIM: This review article is a collaborative report based upon the Authors' presentations and Group discussion on the role of testosterone (T) in the male and female lower urinary tract (LUT) which took place at the 6th International Consultation on Incontinence Research Society's (ICI-RS) annual meeting, in Bristol, UK (September 8-10, 2015). METHODS: It comprises overviews and opinions on both the current state of knowledge of the role of T in LUT function and dysfunction in both sexes...
April 2017: Neurourology and Urodynamics
https://www.readbyqxmd.com/read/28444665/genetic-polymorphisms-of-antioxidant-and-antiglycation-enzymes-and-diabetic-complications-how-much-can-we-learn-from-the-genes
#17
Dimitrios Oikonomou, Jan Benedikt Groener, Ruan Cheko, Zoltan Kender, Lars Kihm, Thomas Fleming, Stefan Kopf, Peter P Nawroth
There is growing evidence that reactive metabolites, such as reactive oxygen species and dicarbonyls contribute to diabetic complications. Formation, accumulation, and detoxification of these metabolites are controlled by several enzymes, some of which have genetically determined levels of expression or function. This review not only gives an overview of the different SNPs studied in patients with diabetes mellitus type 1 and type 2, but in addition attempts to bridge the gap between a genetic study and clinical use...
April 25, 2017: Experimental and Clinical Endocrinology & Diabetes
https://www.readbyqxmd.com/read/28444634/watching-diagnoses-develop-eye-movements-reveal-symptom-processing-during-diagnostic-reasoning
#18
Agnes Scholz, Josef F Krems, Georg Jahn
Finding a probable explanation for observed symptoms is a highly complex task that draws on information retrieval from memory. Recent research suggests that observed symptoms are interpreted in a way that maximizes coherence for a single likely explanation. This becomes particularly clear if symptom sequences support more than one explanation. However, there are no existing process data available that allow coherence maximization to be traced in ambiguous diagnostic situations, where critical information has to be retrieved from memory...
April 25, 2017: Psychonomic Bulletin & Review
https://www.readbyqxmd.com/read/28444617/computational-theory-underlying-acute-vestibulo-ocular-reflex-motor-learning-with-cerebellar-long-term-depression-and-long-term-potentiation
#19
Keiichiro Inagaki, Yutaka Hirata
The vestibulo-ocular reflex (VOR) can be viewed as an adaptive control system that maintains compensatory eye movements during head motion. As the cerebellar flocculus is intimately involved in this adaptive motor control of the VOR, the VOR has been a popular model system for investigating cerebellar motor learning. Long-term depression (LTD) and long-term potentiation (LTP) at the parallel fiber-Purkinje cell synapses are considered to play major roles in cerebellar motor learning. A recent study using mutant mice demonstrated cerebellar motor learning with hampered LTD; the study concluded that the parallel fiber-Purkinje cell LTD is not essential...
April 25, 2017: Cerebellum
https://www.readbyqxmd.com/read/28444522/the-movement-induced-self-reference-effect-enhancing-memorability-through-movement-toward-the-self
#20
Mark A Oakes, Serge V Onyper
Much evidence suggests that bodily actions affect cognitive states. In particular, pulling owned objects toward the self improves memory for those objects compared to memory for objects pushed away from the self. Experiments 1 and 2 examined the effect of incidental joystick movement on static stimuli, hypothesizing that using the physical self (rather than a computer monitor) as a reference point would enhance memory for items categorized via a toward-the-self action but not toward-the-computer-monitor action...
April 25, 2017: Cognitive Processing
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