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https://www.readbyqxmd.com/read/28109271/influence-of-surgical-approach-on-heterotopic-ossification-after-total-hip-arthroplasty-is-minimal-invasive-better-a-case-control-study
#1
Maya Hürlimann, Filippo-Franco Schiapparelli, Niccolo Rotigliano, Enrique Testa, Felix Amsler, Michael T Hirschmann
BACKGROUND: Heterotopic ossification (HO) is a well-known complication after total hip arthroplasty (THA). Recently, the trend is to operate THA minimally invasive being less traumatic than standard approaches and promising a faster return to activity. The purpose of the study was to investigate if minimal invasive surgery (MIS), leads also to less HO after THA. METHODS: This retrospective study included 134 consecutive patients undergoing THA. In 42 (31.3%) patients a standard modified anterolateral (STD-Watson-Jones), in 28 (20...
January 21, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28107888/anxiety-and-anger-immediately-prior-to-myocardial-infarction-and-long-term-mortality-characteristics-of-high-risk-patients
#2
Loes Smeijers, Elizabeth Mostofsky, Geoffrey H Tofler, James E Muller, Willem J Kop, Murray A Mittleman
OBJECTIVE: Acute high levels of anger and anxiety are associated with an elevated risk of myocardial infarction (MI) in the following two hours. MIs preceded by these acute negative emotions may also have a poor long-term prognosis, but information about high-risk patients is lacking. We examined whether young age and female sex are associated with MIs that are preceded by negative emotions and whether age and sex moderate the subsequent increased mortality risk following MI preceded by negative emotions...
February 2017: Journal of Psychosomatic Research
https://www.readbyqxmd.com/read/28107452/mice-lacking-hbp1-function-are-viable-and-fertile
#3
Cassy M Spiller, Dagmar Wilhelm, David A Jans, Josephine Bowles, Peter Koopman
Fetal germ cell development is tightly regulated by the somatic cell environment, and is characterised by cell cycle states that differ between XY and XX gonads. In the testis, gonocytes enter G1/G0 arrest from 12.5 days post coitum (dpc) in mice and maintain cell cycle arrest until after birth. Failure to correctly maintain G1/G0 arrest can result in loss of germ cells or, conversely, germ cell tumours. High mobility group box containing transcription factor 1 (HBP1) is a transcription factor that was previously identified in fetal male germ cells at the time of embryonic cell cycle arrest...
2017: PloS One
https://www.readbyqxmd.com/read/28106131/hif-1%C3%AE-induction-during-reperfusion-avoids-maladaptive-repair-after-renal-ischemia-reperfusion-involving-mir127-3p
#4
Elisa Conde, Sara Giménez-Moyano, Laura Martín-Gómez, Macarena Rodríguez, M Edurne Ramos, Elia Aguado-Fraile, Ignacio Blanco-Sanchez, Ana Saiz, María Laura García-Bermejo
Ischemia/reperfusion (I/R) leads to Acute Kidney Injury. HIF-1α is a key factor during organ response to I/R. We previously demonstrated that HIF-1α is induced during renal reperfusion, after ischemia. Here we investigate the role of HIF-1α and the HIF-1α dependent mechanisms in renal repair after ischemia. By interference of HIF-1α in a rat model of renal I/R, we observed loss of expression and mis-localization of e-cadherin and induction of α-SMA, MMP-13, TGFβ, and collagen I. Moreover, we demonstrate that HIF-1α inhibition promotes renal cell infiltrates by inducing IL-1β, TNF-α, MCP-1 and VCAM-1, through NFkB activity...
January 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28105687/a-research-review-on-clinical-needs-technical-requirements-and-normativity-in-the-design-of-surgical-robots
#5
REVIEW
Carlos Eduardo Díaz, Roemi Fernández, Manuel Armada, Felipe García
Nowadays robots play an important role in society, mainly due to the significant benefits they provide when utilized for assisting human beings in the execution of dangerous or repetitive tasks. Medicine is one of the fields in which robots are gaining greater use and development, especially those employed in minimally invasive surgery (MIS). However, due to the particular conditions of the human body where robots have to act, the design of these systems is complex, not only from a technical point of view, but also because the clinical needs and the normativity aspects are important considerations that have to be taken into account in order to achieve better performances and more secure systems for patients and surgeons...
January 20, 2017: International Journal of Medical Robotics + Computer Assisted Surgery: MRCAS
https://www.readbyqxmd.com/read/28099589/which-coronary-lesions-are-more-prone-to-cause-acute-myocardial-infarction
#6
Taner Sen, Mehmet Ali Astarcioglu, Osman Beton, Lale Dinc Asarcikli, Celal Kilit
Background: According to common belief, most myocardial infarctions (MIs) are due to the rupture of nonsevere, vulnerable plaques with < 70% obstruction. Data from recent trials challenge this belief, suggesting that the risk of coronary occlusion is, in fact, much higher after severe stenosis. The aim of this study was to investigate whether or not acute ST-elevation MIs result from high-grade stenoses by evaluating the presence of coronary collateral circulation (CCC). Methods: We retrospectively included 207 consecutive patients who had undergone primary percutaneous coronary intervention for acute ST-elevation MI...
January 16, 2017: Arquivos Brasileiros de Cardiologia
https://www.readbyqxmd.com/read/28096671/local-mild-hypothermia-therapy-as-an-augmentation-strategy-for-minimally-invasive-surgery-of-hypertensive-intracerebral-hemorrhage-a-meta-analysis-of-randomized-clinical-trials
#7
Yu Han, Ke Sheng, Meilan Su, Nan Yang, Dong Wan
BACKGROUND: Previous studies reported that the mild hypothermia therapy (MHT) could significantly improve the clinical outcomes for patients with hypertensive intracerebral hemorrhage (HICH). Therefore, this meta-analysis was conducted to systematically assess whether the addition of local MHT (LMHT) could significantly improve the efficacy of minimally invasive surgery (MIS) in treating HICH. METHODS: Randomized clinical trials on the combined application of MIS and LMHT (MIS+LMHT) vs MIS alone for treating HICH were searched up to September 2016 in databases...
2017: Neuropsychiatric Disease and Treatment
https://www.readbyqxmd.com/read/28094344/estrogen-related-receptor-is-required-for-the-testicular-development-and-for-the-normal-sperm-axoneme-mitochondrial-derivatives-in-drosophila-males
#8
Snigdha Misra, Anuj Kumar Pandey, Snigdha Gupta, Ajay Kumar, Priyanka Khanna, Jai Shankar, Kristipati Ravi Ram
Estrogen related receptors (ERRs), categorized as orphan nuclear receptors, are critical for energy homeostasis and somatic development. However, significance of ERRs in the development of reproductive organs/organelles/cells remain poorly understood, albeit their homology to estrogen receptors. In this context, here, we show that knockdown of ERR in the testes leads to improperly developed testes with mis-regulation of genes (aly, mia, bruce, bam, bgcn, fzo and eya) involved in spermatogenesis, resulting in reduced male fertility...
January 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28093407/protein-multiple-sequence-alignment-benchmarking-through-secondary-structure-prediction
#9
Quan Le, Fabian Sievers, Desmond G Higgins
MOTIVATION: Multiple sequence alignment (MSA) is commonly used to analyse sets of homologous protein or DNA sequences. This has lead to the development of many methods and packages forMSAover the past 30 years. Being able to compare different methods has been problematic and has relied on gold standard benchmark datasets of 'true' alignments or on MSA simulations. A number of protein benchmark datasets have been produced which rely on a combination of manual alignment and/or automated superposition of protein structures...
January 16, 2017: Bioinformatics
https://www.readbyqxmd.com/read/28091702/platelet-receptor-gene-p2y12-p2y1-and-platelet-glycoprotein-gene-gpiiia-polymorphisms-are-associated-with-antiplatelet-drug-responsiveness-and-clinical-outcomes-after-acute-minor-ischemic-stroke
#10
Xingyang Yi, Qiang Zhou, Chun Wang, Jing Lin, Ping Liu, Cheng Fu
PURPOSE: Patients with minor ischemic stroke (MIS) are at high risk of recurrent ischemic stroke (RIS). The aim of this study was to evaluate the effects of platelet receptor gene (P2Y12, P2Y1) and glycoprotein gene (GPIIIa) polymorphisms, as well as their interactions, on antiplatelet drug responsiveness and clinical outcomes in patients with acute MIS. METHODS: We prospectively enrolled 426 patients with acute MIS who had been receiving combined aspirin and clopidogrel treatment for at least 3 months...
January 13, 2017: European Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28091595/geological-support-for-the-umbrella-effect-as-a-link-between-geomagnetic-field-and-climate
#11
Ikuko Kitaba, Masayuki Hyodo, Takeshi Nakagawa, Shigehiro Katoh, David L Dettman, Hiroshi Sato
The weakening of the geomagnetic field causes an increase in galactic cosmic ray (GCR) flux. Some researchers argue that enhanced GCR flux might lead to a climatic cooling by increasing low cloud formation, which enhances albedo (umbrella effect). Recent studies have reported geological evidence for a link between weakened geomagnetic field and climatic cooling. However, more work is needed on the mechanism of this link, including whether the umbrella effect is playing a central role. In this research, we present new geological evidence that GCR flux change had a greater impact on continental climate than on oceanic climate...
January 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28090731/addition-of-ezetimibe-to-statins-for-patients-at-high-cardiovascular-risk-systematic-review-of-patient-important-outcomes
#12
REVIEW
Yutong Fei, Gordon Henry Guyatt, Paul Elias Alexander, Regina El Dib, Reed A C Siemieniuk, Per Olav Vandvik, Mark E Nunnally, Huda Gomaa, Rebecca L Morgan, Arnav Agarwal, Ying Zhang, Neera Bhatnagar, Frederick A Spencer
Ezetimibe is widely used in combination with statins to reduce low-density lipoprotein. We sought to examine the impact of ezetimibe when added to statins on patient-important outcomes. Medline, EMBASE, CINAHL, and CENTRAL were searched through July, 2016. Randomized controlled trials (RCTs) of ezetimibe combined with statins versus statins alone that followed patients for at least 6 months and reported on at least one of all-cause mortality, cardiovascular deaths, non-fatal myocardial infarctions (MI), and non-fatal strokes were included...
January 16, 2017: Journal of Evaluation in Clinical Practice
https://www.readbyqxmd.com/read/28089093/minimally-invasive-surgery-for-evacuating-the-intracerebral-hematoma-in-early-stages-decreased-secondary-damages-to-the-internal-capsule-in-dog-model-of-ich-observed-by-diffusion-tensor-imaging
#13
Guofeng Wu, Fan Wang, Likun Wang, Jing Shi, Hui Yu, Yingjun Zhang
BACKGROUND: Diffusion tensor imaging was used to observe the effects of performing early minimally invasive surgery (MIS) on internal capsule in dog model of intracerebral hemorrhage (ICH). METHODS: Twenty-five male dogs were selected to prepare an ICH model, and then they were randomly distributed into a model control (MC) group (5 dogs) or an MIS group (20 dogs). In the MIS group, the intracerebral hematoma was evacuated by stereotactic minimally invasive procedures over 6 hours (5 dogs), 12 hours (5 dogs), 18 hours (5 dogs), or 24 hours (5 dogs) after successful induction of ICH...
January 6, 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/28087838/does-the-assessment-of-non-disjunction-provide-a-more-sensitive-assay-for-detection-of-aneugens
#14
Joanne M Elloway, Alexandra K Davies, Julie Hayes, Ann T Doherty
The detection of aneugenic chemicals is important due to the implications of aneuploidy for human health. Aneuploidy can result from chromosome loss or non-disjunction due to chromosome mis-segregation at anaphase. Frequently, aneugens are detected using the in vitro micronucleus assay (IVM), with either centromere or kinetochore labelling. However, this method does not consider non-disjunction, the suggested predominant mechanism of spindle poison induced aneugenicity in primary human lymphocytes. Therefore, the IVM may be relatively insensitive in detecting aneuploidy...
January 13, 2017: Toxicological Sciences: An Official Journal of the Society of Toxicology
https://www.readbyqxmd.com/read/28087771/genome-wide-convergence-during-evolution-of-mangroves-from-woody-plants
#15
Shaohua Xu, Ziwen He, Zixiao Guo, Zhang Zhang, Gerald J Wyckoff, Anthony Greenberg, Chung-I Wu, Suhua Shi
When living organisms independently invade a new environment, the evolution of similar phenotypic traits is often observed. An interesting but contentious issue is whether the underlying molecular biology also converges in the new habitat. Independent invasions of tropical intertidal zones by woody plants, collectively referred to as mangrove trees, represent some dramatic examples. The high salinity, hypoxia and other stressors in the new habitat might have affected both genomic features and protein structures...
January 12, 2017: Molecular Biology and Evolution
https://www.readbyqxmd.com/read/28087624/tissue-specific-regulation-of-alternative-polyadenylation-represses-expression-of-neuronal-ankyrin-isoform-in-c-elegans-epidermal-development
#16
Fei Chen, Andrew D Chisholm, Yishi Jin
Differential mRNA polyadenylation plays an important role in shaping the neuronal transcriptome. In C. elegans, several ankyrin isoforms are produced from the unc-44 locus through alternative polyadenylation. Here, we identify a key role for an intronic polyadenylation site (PAS) in temporal- and tissue-specific regulation of UNC-44/ankyrin isoforms. Removing an intronic PAS results in ectopic expression of the neuronal ankyrin isoform in non-neural tissues. This mis-expression underlies epidermal developmental defects in mutants of the conserved tumor suppressor death-associated protein kinase, dapk-1 We previously reported that the use of this intronic PAS depends on the nuclear polyadenylation factor SYDN-1, which inhibits the RNA polymerase II CTD phosphatase SSUP-72...
January 13, 2017: Development
https://www.readbyqxmd.com/read/28080987/ploidy-dynamics-and-evolvability-in-fungi
#17
REVIEW
Noa Blutraich Wertheimer, Neil Stone, Judith Berman
Rapid responses to acute stresses are essential for stress survival and are critical to the ability of fungal pathogens to adapt to new environments or hosts. The rapid emergence of drug resistance is used as a model for how fungi adapt and survive stress conditions that inhibit the growth of progenitor cells. Aneuploidy and loss of heterozygosity (LOH), which are large-scale genome shifts involving whole chromosomes or chromosome arms, occur at higher frequency than point mutations and have the potential to mediate stress survival...
December 5, 2016: Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
https://www.readbyqxmd.com/read/28079010/discovery-of-natural-product-proteasome-inhibitors-as-novel-anticancer-therapeutics-current-status-and-perspectives
#18
Hui Wang, Qingzhu Yang, Ping Dou, Huanjie Yang
Natural products serve as a main resource for drug discovery. The ubiquitin-proteasome system (UPS) is one of the primary intracellular protein degradation systems, which is responsible for the degradation of most short-lived, mis-folded and aged proteins. The proteasome is a validated target for cancer treatment, since cancer cells are more reliant on high levels of proteasome activity to maintain the dynamic protein homeostasis required for enhanced metabolism and unrestricted proliferation inherent in cancer cells...
January 11, 2017: Current Protein & Peptide Science
https://www.readbyqxmd.com/read/28074913/auditory-localisation-biases-increase-with-sensory-uncertainty
#19
Sara E Garcia, Pete R Jones, Gary S Rubin, Marko Nardini
Psychophysical studies have frequently found that adults with normal hearing exhibit systematic errors (biases) in their auditory localisation judgments. Here we tested (i) whether systematic localisation errors could reflect reliance on prior knowledge, as has been proposed for other systematic perceptual biases, and (ii) whether auditory localisation biases can be reduced following training with accurate visual feedback. Twenty-four normal hearing participants were asked to localise the position of a noise burst along the azimuth before, during, and after training with visual feedback...
January 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28074326/minimally-invasive-staging-surgery-in-women-with-early-stage-endometrial-cancer-analysis-of-the-national-cancer-data-base
#20
Amy J Bregar, Alexander Melamed, Elisabeth Diver, Joel T Clemmer, Shitanshu Uppal, John O Schorge, Laurel W Rice, Marcela G Del Carmen, J Alejandro Rauh-Hain
PURPOSE: The aim of this study was to determine factors associated with the adoption of minimally invasive surgery (MIS) compared with laparotomy in the treatment of endometrial cancer and to compare surgical outcomes and survival between these two surgical modalities. METHODS: We utilized the National Cancer Data Base (NCDB) to identify women diagnosed with presumed early-stage endometrial cancer between 2010 and 2012. We also identified factors associated with the performance of MIS and utilized propensity score matching to create a matched cohort of women who underwent minimally invasive staging surgery or laparotomy for surgical staging...
January 10, 2017: Annals of Surgical Oncology
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