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https://www.readbyqxmd.com/read/29911947/oral-and-dental-anomalies-in-purebred-brachycephalic-persian-and-exotic-cats
#1
Lisa A Mestrinho, João M Louro, Iněs S Gordo, Maria M R E Niza, João F Requicha, Judith G Force, Jerzy P Gawor
OBJECTIVE To determine the prevalence of dental anomalies in brachycephalic cats from various geographic regions and analyze potential relationships with oral disease. DESIGN Prospective multicenter cross-sectional study. ANIMALS 50 purebred Persian (n = 42) and Exotic (8) cats. PROCEDURES Cats were anesthetized, and a complete dental examination, dental charting, 3-view oral photography, and full-mouth dental radiography were performed. RESULTS Malocclusions were observed in 36 (72%) cats. Crowding of the teeth was evident in 28 (56%) cats, with the incisors being most commonly affected...
July 1, 2018: Journal of the American Veterinary Medical Association
https://www.readbyqxmd.com/read/29909238/autophagy-as-an-emerging-target-in-cardiorenal-metabolic-disease-from-pathophysiology-to-management
#2
REVIEW
Yingmei Zhang, Adam T Whaley-Connell, James R Sowers, Jun Ren
Although advances in medical technology and health care have improved the early diagnosis and management for cardiorenal metabolic disorders, the prevalence of obesity, insulin resistance, diabetes, hypertension, dyslipidemia, and kidney disease remains high. Findings from numerous population-based studies, clinical trials, and experimental evidence have consolidated a number of theories for the pathogenesis of cardiorenal metabolic anomalies including resistance to the metabolic action of insulin, abnormal glucose and lipid metabolism, oxidative and nitrosative stress, endoplasmic reticulum (ER) stress, apoptosis, mitochondrial damage, and inflammation...
June 15, 2018: Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/29895951/quantifying-arctic-lower-stratospheric-ozone-sources-in-winter-and-spring
#3
Chen Pan, Bin Zhu, Jinhui Gao, Xuewei Hou, Hanqing Kang, Dongdong Wang
The dynamical and chemical characteristics of unusually low Arctic ozone events in 2005 and 2011 have been well-studied. However, the quantitative identification of Arctic ozone sources is lacking. Here, we use tagged ozone tracers in a numerical simulation to quantify the contributions to Arctic lower stratospheric ozone (ARCLS_O3 ) at diverse latitudes in winter and spring from 2005-2011. We demonstrate that the northern mid-latitudinal stratosphere steadily contributes approximately half of ARCLS_O3 . The absolute contributions during February have evident variations, which are smaller in cold years (151...
June 12, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29894002/analysis-of-early-failure-of-biotronik-linox-smart-implantable-cardioverter-defibrillator-leads-a-comparative-study-of-three-defibrillator-leads
#4
Diego Pérez Díez, José Manuel Rubín, David Calvo Cuervo, Daniel García Iglesias, César Morís De La Tassa
BACKGROUND AND OBJECTIVES: Early failure of Biotronik Linox and Linox Smart leads has been reported in numerous recent publications. The aim of this study was to assess the performance of this lead compared with that of 2 other contemporary leads. METHODS: We conducted an ambispective study of all consecutive first implantations of defibrillator leads carried out in our center: Endotak (Boston Scientific, model 148, 158)(n = 173), Sprint Quattro (Medtronic, model 6644, 6947)(n = 145) and Linox Smart (Biotronik, model SD 65/16)(n = 120)...
June 12, 2018: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/29880056/congenital-aortic-stenosis-due-to-unicuspid-unicommissural-aortic-valve-a-case-report
#5
Arnar B Ingason, Gunnlaugur Sigfusson, Bjarni Torfason
BACKGROUND: Unicuspid unicommissural aortic valve is an extremely rare congenital anomaly that usually presents in adulthood but can rarely present in infancy. We report a 17-year-old patient with congenital aortic stenosis secondary to unicuspid unicommissural aortic valve that was successfully treated with aortic valve replacement. CASE PRESENTATION: The patient was diagnosed with aortic stenosis after a murmur was heard in the newborn nursery and subsequently underwent aortic balloon valvuloplasty 6 weeks after birth...
June 7, 2018: Journal of Cardiothoracic Surgery
https://www.readbyqxmd.com/read/29794074/tau-mutations-serve-as-a-novel-risk-factor-for-cancer
#6
Giacomina Rossi, Veronica Redaelli, Paolo Contiero, Sabrina Fabiano, Giovanna Tagliabue, Paola Perego, Luisa Benussi, Amalia Cecilia Bruni, Graziella Filippini, Mariangela Farinotti, Giorgio Giaccone, Simona Buiatiotis, Claudia Manzoni, Raffaele Ferrari, Fabrizio Tagliavini
In addition to its well-recognized role in neurodegeneration, tau participates in maintenance of genome stability and chromosome integrity. In particular, peripheral cells from patients affected by frontotemporal lobar degeneration carrying a mutation in tau gene (genetic tauopathies), as well as cells from animal models, show chromosome numerical and structural aberrations, chromatin anomalies, and a propensity toward abnormal recombination. As genome instability is tightly linked to cancer development, we hypothesized that mutated tau may be a susceptibility factor for cancer...
May 24, 2018: Cancer Research
https://www.readbyqxmd.com/read/29791363/design-of-a-portable-phantom-device-to-simulate-tissue-oxygenation-and-blood-perfusion
#7
Xiang Lv, Hongyu Chen, Guangli Liu, Shuwei Shen, Qiang Wu, Chuanzhen Hu, Jialuo Li, Erbao Dong, Ronald X Xu
We propose a portable phantom system for calibration and validation of medical optical devices in a clinical setting. The phantom system comprises a perfusion module and an exchangeable tissue-simulating phantom that simulates tissue oxygenation and blood perfusion. The perfusion module consists of a peristaltic pump, two liquid storage units, and two pressure suppressors. The tissue-simulating phantom is fabricated by a three-dimensional (3D) printing process with microchannels embedded to simulate blood vessels...
May 10, 2018: Applied Optics
https://www.readbyqxmd.com/read/29777099/targeting-g-protein-coupled-receptor-signaling-at-the-g-protein-level-with-a-selective-nanobody-inhibitor
#8
Sahil Gulati, Hui Jin, Ikuo Masuho, Tivadar Orban, Yuan Cai, Els Pardon, Kirill A Martemyanov, Philip D Kiser, Phoebe L Stewart, Christopher P Ford, Jan Steyaert, Krzysztof Palczewski
G protein-coupled receptors (GPCRs) activate heterotrimeric G proteins by mediating a GDP to GTP exchange in the Gα subunit. This leads to dissociation of the heterotrimer into Gα-GTP and Gβγ dimer. The Gα-GTP and Gβγ dimer each regulate a variety of downstream pathways to control various aspects of human physiology. Dysregulated Gβγ-signaling is a central element of various neurological and cancer-related anomalies. However, Gβγ also serves as a negative regulator of Gα that is essential for G protein inactivation, and thus has the potential for numerous side effects when targeted therapeutically...
May 18, 2018: Nature Communications
https://www.readbyqxmd.com/read/29774433/dynamic-and-thermodynamic-crossover-scenarios-in-the-kob-andersen-mixture-insights-from-multi-cpu-and-multi-gpu-simulations
#9
Daniele Coslovich, Misaki Ozawa, Walter Kob
The physical behavior of glass-forming liquids presents complex features of both dynamic and thermodynamic nature. Some studies indicate the presence of thermodynamic anomalies and of crossovers in the dynamic properties, but their origin and degree of universality is difficult to assess. Moreover, conventional simulations are barely able to cover the range of temperatures at which these crossovers usually occur. To address these issues, we simulate the Kob-Andersen Lennard-Jones mixture using efficient protocols based on multi-CPU and multi-GPU parallel tempering...
May 17, 2018: European Physical Journal. E, Soft Matter
https://www.readbyqxmd.com/read/29772208/influence-of-blood-flow-on-cardiac-development
#10
REVIEW
Katherine Courchaine, Graham Rykiel, Sandra Rugonyi
The role of hemodynamics in cardiovascular development is not well understood. Indeed, it would be remarkable if it were, given the dauntingly complex array of intricately synchronized genetic, molecular, mechanical, and environmental factors at play. However, with congenital heart defects affecting around 1 in 100 human births, and numerous studies pointing to hemodynamics as a factor in cardiovascular morphogenesis, this is not an area in which we can afford to remain in the dark. This review seeks to present the case for the importance of research into the biomechanics of the developing cardiovascular system...
May 23, 2018: Progress in Biophysics and Molecular Biology
https://www.readbyqxmd.com/read/29761492/c7-vertebra-homeotic-transformation-in-domestic-dogs-are-pug-dogs-breaking-mammalian-evolutionary-constraints
#11
J Brocal, S De Decker, R José-López, E G Manzanilla, J Penderis, C Stalin, S Bertram, J J Schoenebeck, C Rusbridge, N Fitzpatrick, R Gutierrez-Quintana
The number of cervical vertebrae in mammals is almost constant at seven, regardless of their neck length, implying that there is selection against variation in this number. Homebox (Hox) genes are involved in this evolutionary mammalian conservation, and homeotic transformation of cervical into thoracic vertebrae (cervical ribs) is a common phenotypic abnormality when Hox gene expression is altered. This relatively benign phenotypic change can be associated with fatal traits in humans. Mutations in genes upstream of Hox, inbreeding and stressors during organogenesis can also cause cervical ribs...
May 14, 2018: Journal of Anatomy
https://www.readbyqxmd.com/read/29758641/evaluation-of-temperature-history-of-a-spherical-nanosystem-irradiated-with-various-short-pulse-laser-sources
#12
Arnab Lahiri, Pranab K Mondal
Spatiotemporal thermal response and characteristics of net entropy production rate of a gold nanosphere (radius: 50-200 nm), subjected to a short-pulse, femtosecond laser is reported. In order to correctly illustrate the temperature history of laser-metal interaction(s) at picoseconds transient with a comprehensive single temperature definition in macroscale and to further understand how the thermophysical response of the single-phase lag (SPL) and dual-phase lag (DPL) frameworks (with various lag-ratios') differs, governing energy equations derived from these benchmark non-Fourier frameworks are numerically solved and thermodynamic assessment under both the classical irreversible thermodynamics (CIT) as well as extended irreversible thermodynamics (EIT) frameworks is subsequently carried out...
April 2018: Physical Review. E
https://www.readbyqxmd.com/read/29756856/global-anomaly-detection-in-two-dimensional-symmetry-protected-topological-phases
#13
Nick Bultinck, Robijn Vanhove, Jutho Haegeman, Frank Verstraete
Edge theories of symmetry-protected topological phases are well known to possess global symmetry anomalies. In this Letter we focus on two-dimensional bosonic phases protected by an on-site symmetry and analyze the corresponding edge anomalies in more detail. Physical interpretations of the anomaly in terms of an obstruction to orbifolding and constructing symmetry-preserving boundaries are connected to the cohomology classification of symmetry-protected phases in two dimensions. Using the tensor network and matrix product state formalism we numerically illustrate our arguments and discuss computational detection schemes to identify symmetry-protected order in a ground state wave function...
April 13, 2018: Physical Review Letters
https://www.readbyqxmd.com/read/29748535/chiral-landau-levels-in-weyl-semimetal-nbas-with-multiple-topological-carriers
#14
Xiang Yuan, Zhongbo Yan, Chaoyu Song, Mengyao Zhang, Zhilin Li, Cheng Zhang, Yanwen Liu, Weiyi Wang, Minhao Zhao, Zehao Lin, Tian Xie, Jonathan Ludwig, Yuxuan Jiang, Xiaoxing Zhang, Cui Shang, Zefang Ye, Jiaxiang Wang, Feng Chen, Zhengcai Xia, Dmitry Smirnov, Xiaolong Chen, Zhong Wang, Hugen Yan, Faxian Xiu
Recently, Weyl semimetals have been experimentally discovered in both inversion-symmetry-breaking and time-reversal-symmetry-breaking crystals. The non-trivial topology in Weyl semimetals can manifest itself with exotic phenomena, which have been extensively investigated by photoemission and transport measurements. Despite the numerous experimental efforts on Fermi arcs and chiral anomaly, the existence of unconventional zeroth Landau levels, as a unique hallmark of Weyl fermions, which is highly related to chiral anomaly, remains elusive owing to the stringent experimental requirements...
May 10, 2018: Nature Communications
https://www.readbyqxmd.com/read/29732422/developments-in-the-treatment-of-chiari-type-1-malformations-over-the-past-decade
#15
Peter G Passias, Alexandra Pyne, Samantha R Horn, Gregory W Poorman, Muhammad B Janjua, Dennis Vasquez-Montes, Cole A Bortz, Frank A Segreto, Nicholas J Frangella, Matthew Y Siow, Akhila Sure, Peter L Zhou, John Y Moon, Bassel G Diebo, Shaleen N Vira
Background: Chiari malformations type 1 (CM-1), a developmental anomaly of the posterior fossa, usually presents in adolescence or early adulthood. There are few studies on the national incidence of CM-1, taking into account outcomes based on concurrent diagnoses. To quantify trends in treatment and associated diagnoses, as retrospective review of the Kid's Inpatient Database (KID) from 2003-2012 was conducted. Methods: Patients aged 0-20 with primary diagnosis of CM-1 in the KID database were identified...
March 2018: Journal of Spine Surgery (Hong Kong)
https://www.readbyqxmd.com/read/29722897/mucopolysaccharidosis-vi-and-effects-on-growth-of-the-apical-bases-a-case-report
#16
Moema Ferreira Dos Reis, Lucas Rodrigues Pinheiro, Maria das Graças Rodrigues Pinheiro, Haroldo Amorim de Almeida, Patrícia do Socorro Queiroz Feio, Sâmia Cordovil de Almeida, Isabel Cristina Neves de Souza, Roberto Giugliani, Ida Vanessa Doederlein Schwartz, Rosely Maria Dos Santos Cavaleiro, João de Jesus Viana Pinheiro, Luiz Carlos Santana da Silva
OBJECTIVE: Mucopolysaccharidosis (MPS) VI is a rare disorder caused by an autosomal recessive mutation in the short arm of chromosome 5 (5q12-13) leading to an N-acetylgalactosamine-sulfatase lysosomal enzyme deficiency and numerous systemic clinical changes. The oral and maxillofacial complex may exhibit tooth eruption anomalies, macroglossia, gingival hypertrophy, mouth breathing, increased lower facial height, open bite, retrognathia, and progressive TMJ arthrosis. This report describes craniofacial growth changes in two MPS VI patients, sisters and daughters of outbred parents, who were longitudinally monitored from 11 to 15 years of age...
May 3, 2018: Special Care in Dentistry
https://www.readbyqxmd.com/read/29718885/orofacial-signs-and-dental-abnormalities-in-patients-with-mulvihill-smith-syndrome-a-literature-review-on-this-rare-progeroid-pathology
#17
REVIEW
Pier Carmine Passarelli, Guido Pasquantonio, Paolo Francesco Manicone, Loredana Cerroni, Roberta Condo', Manuele Mancini, Antonio D'Addona
BACKGROUND: Mulvihill-Smith syndrome is a rare sporadic condition that was first recognized in 1975. A total of 11 cases have been described in the literature. The aim of this study was to describe the orofacial signs and dental anomalies, their frequency, and the relationship between Mulvihill-Smith syndrome and other progeroid syndromes via a review of the literature. METHODS: A systematic PubMed search was performed to retrieve articles published between 1975 and the present day that described patients affected by Mulvihill-Smith syndrome...
May 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29706792/distribution-and-depth-of-bottom-simulating-reflectors-in-the-nankai-subduction-margin
#18
Akihiro Ohde, Hironori Otsuka, Arata Kioka, Juichiro Ashi
Surface heat flow has been observed to be highly variable in the Nankai subduction margin. This study presents an investigation of local anomalies in surface heat flows on the undulating seafloor in the Nankai subduction margin. We estimate the heat flows from bottom-simulating reflectors (BSRs) marking the lower boundaries of the methane hydrate stability zone and evaluate topographic effects on heat flow via two-dimensional thermal modeling. BSRs have been used to estimate heat flows based on the known stability characteristics of methane hydrates under low-temperature and high-pressure conditions...
2018: Earth, Planets, and Space: EPS
https://www.readbyqxmd.com/read/29689188/dental-and-maxillofacial-signs-in-aarskog-syndrome-a-review-of-3-siblings-and-the-literature
#19
Arnaud Depeyre, Matthias Schlund, Rémi Gryseleyn, Joël Ferri
PURPOSE: Dagfinn Aarksog first described faciodigitogenital syndrome in 1970. Its inheritance is X linked and autosomally recessive. Currently, the diagnosis of Aarskog-Scott syndrome (ASS) is based on clinical dysmorphologic findings and can be supported by genetic examination. REPORT OF CASES: This report describes 3 brothers already diagnosed with ASS who were referred for examination of oral and maxillofacial malformations associated with ASS. They presented classic features of ASS, such as digital and genital (shawl scrotum) anomalies...
March 29, 2018: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29683851/detection-of-numerous-hiv-1-mo-recombinants-in-france
#20
Fabienne De Oliveira, Pierre Cappy, Véronique Lemée, Alice Moisan, Charlotte Pronier, Laurence Bocket, Magali Bouvier-Alias, Marie-Laure Chaix, Elyanne Gault, Odile Morvan, Jean-Dominique Poveda, Véronique Schneider, Marc Wirden, Elodie Alessandri-Gradt, Thomas Mourez, Jean-Christophe Plantier
BACKGROUND: The broad genetic divergence of HIV-1/O relative to HIV-1/M has important implications for diagnosis, monitoring and treatment. Despite this divergence, some HIV-1/M+O dual infections and HIV-1/MO recombinant forms have been reported, mostly in Cameroon, where both groups are prevalent. Here, we describe the characteristics of such infections detected in France in 10 new patients, and discuss their implications for biological and clinical practice, owing to the presence of group O species...
June 19, 2018: AIDS
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