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https://www.readbyqxmd.com/read/29342280/epigenetic-differentiation-of-natural-populations-of-lilium-bosniacum-associated-with-contrasting-habitat-conditions
#1
V Zoldoš, I Biruš, E Muratovic, Z Šatovic, A Vojta, O Robin, F Pustahija, F Bogunic, V Vicic Bockor, S Siljak-Yakovlev
Epigenetic variation in natural populations with contrasting habitats might be an important element, in addition to the genetic variation, in plant adaptation to environmental stress. Here, we assessed genetic, epigenetic and cytogenetic structure of the three Lilium bosniacum populations growing on distinct habitats. One population was growing under habitual ecological conditions for this species and the other two were growing under stress associated with high altitude and serpentine soil. Amplified fragment length polymorphism (AFLP) and methylation-sensitive amplification polymorphism (MSAP) analyses revealed that the three populations did not differentiate genetically, but were clearly separated in the three distinct clusters according to DNA methylation profiles...
January 12, 2018: Genome Biology and Evolution
https://www.readbyqxmd.com/read/29341812/optional-anatomy-and-physiology-e-learning-resources-student-access-learning-approaches-and-academic-outcomes
#2
Richard Guy, Bruce Byrne, Marian Dobos
Anatomy and physiology interactive video clips were introduced into a blended learning environment, as an optional resource, and were accessed by ~50% of the cohort. Student feedback indicated that clips were engaging, assisted understanding of course content, and provided lecture support. Students could also access two other optional online resources, lecture capture recordings and an interactive atlas of anatomy, and individuals were tracked with respect to their access behavior, learning approach, and subject score...
March 1, 2018: Advances in Physiology Education
https://www.readbyqxmd.com/read/29340246/stat-tracks-and-mediotypes-powerful-tools-for-modern-ichnology-based-on-3d-models
#3
Matteo Belvedere, Matthew R Bennett, Daniel Marty, Marcin Budka, Sally C Reynolds, Rashid Bakirov
Vertebrate tracks are subject to a wide distribution of morphological types. A single trackmaker may be associated with a range of tracks reflecting individual pedal anatomy and behavioural kinematics mediated through substrate properties which may vary both in space and time. Accordingly, the same trackmaker can leave substantially different morphotypes something which must be considered in creating ichnotaxa. In modern practice this is often captured by the collection of a series of 3D track models. We introduce two concepts to help integrate these 3D models into ichnological analysis procedures...
2018: PeerJ
https://www.readbyqxmd.com/read/29340238/a-revised-cranial-description-of-massospondylus-carinatus-owen-dinosauria-sauropodomorpha-based-on-computed-tomographic-scans-and-a-review-of-cranial-characters-for-basal-sauropodomorpha
#4
Kimberley E J Chapelle, Jonah N Choiniere
Massospondylus carinatus is a basal sauropodomorph dinosaur from the early Jurassic Elliot Formation of South Africa. It is one of the best-represented fossil dinosaur taxa, known from hundreds of specimens including at least 13 complete or nearly complete skulls. Surprisingly, the internal cranial anatomy of M. carinatus has never been described using computed tomography (CT) methods. Using CT scans and 3D digital representations, we digitally reconstruct the bones of the facial skeleton, braincase, and palate of a complete, undistorted cranium of M...
2018: PeerJ
https://www.readbyqxmd.com/read/29340228/a-new-small-bodied-ornithopod-dinosauria-ornithischia-from-a-deep-high-energy-early-cretaceous-river-of-the-australian-antarctic-rift-system
#5
Matthew C Herne, Alan M Tait, Vera Weisbecker, Michael Hall, Jay P Nair, Michael Cleeland, Steven W Salisbury
A new small-bodied ornithopod dinosaur, Diluvicursor pickeringi, gen. et sp. nov., is named from the lower Albian of the Eumeralla Formation in southeastern Australia and helps shed new light on the anatomy and diversity of Gondwanan ornithopods. Comprising an almost complete tail and partial lower right hindlimb, the holotype (NMV P221080) was deposited as a carcass or body-part in a log-filled scour near the base of a deep, high-energy river that incised a faunally rich, substantially forested riverine floodplain within the Australian-Antarctic rift graben...
2018: PeerJ
https://www.readbyqxmd.com/read/29340156/hepatotoxicity-in-hyperthyroid-patient-after-consecutive-methimazole-and-propylthiouracil-therapies
#6
Fernando Gomez-Peralta, Pablo Velasco-Martínez, Cristina Abreu, María Cepeda, Marta Fernández-Puente
Methimazole (MMI) and propylthiouracil (PTU) are widely used antithyroid drugs (ATD) that have been approved for the treatment of hyperthyroidism. Hepatotoxicity may be induced by these drugs, though they exert dissimilar incidence rates of hepatotoxicity and, possibly, with different underlying pathogenic mechanisms. We report the case of a 55-year-old woman with no relevant medical history diagnosed with hyperthyroidism due to Graves' disease, who developed two episodes of acute hepatitis concurrent with the consecutive administration of two different ATDs, first MMI and then PTU...
2018: Endocrinology, Diabetes & Metabolism Case Reports
https://www.readbyqxmd.com/read/29339488/ultrafast-imaging-of-cell-elasticity-with-optical-microelastography
#7
Pol Grasland-Mongrain, Ali Zorgani, Shoma Nakagawa, Simon Bernard, Lia Gomes Paim, Greg Fitzharris, Stefan Catheline, Guy Cloutier
Elasticity is a fundamental cellular property that is related to the anatomy, functionality, and pathological state of cells and tissues. However, current techniques based on cell deformation, atomic force microscopy, or Brillouin scattering are rather slow and do not always accurately represent cell elasticity. Here, we have developed an alternative technique by applying shear wave elastography to the micrometer scale. Elastic waves were mechanically induced in live mammalian oocytes using a vibrating micropipette...
January 16, 2018: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29339320/primary-obstruction-of-the-foramen-of-luschka-anatomy-histology-and-clinical-significance
#8
Laszlo Barany, Gabor Baksa, Patonay Lajos, Gergely Racz, Oliver Ganslandt, Michael Buchfelder, Peter Kurucz
BACKGROUND: The foramen of Luschka is a natural aperture between the fourth ventricle and the subarachnoid space at the cerebellopontine angle (CPA). Membranous closure of this foramen is referred to as primary obstruction. The available information about this variant and its role in the development of the cysts of the posterior fossa are contradictory in the literature. METHODS: Sixty-one formalin-fixed human brains (122 foramina) were involved in this study. Both the macroscopic and the histological features of the obstructed foramina were examined...
January 12, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29339194/vaginal-construction-and-treatment-providers-experiences-a-qualitative-analysis
#9
Katrina Roen, Sarah M Creighton, Peter Hegarty, Lih-Mei Liao
OBJECTIVE: To investigate specialist clinicians' experiences of treating vaginal agenesis. DESIGN: Semi-structured interviews. SETTING: 12 hospitals in Sweden and the UK. SAMPLE: 32 health professionals connected to multidisciplinary teams including medical specialists and psychologists. METHODS: Theoretical thematic analysis of recorded verbatim data. RESULTS: The gynecologist and psychologist interviewees share certain observations including the importance of psychological readiness for and appropriate timing of treatment...
January 12, 2018: Journal of Pediatric and Adolescent Gynecology
https://www.readbyqxmd.com/read/29339193/a-pilot-study-on-the-biomechanical-assessment-of-obstructive-sleep-apnea-pre-and-post-bariatric-surgery
#10
Ahmed M Al-Jumaily, Sherif Ashaat, Bryn Martin, Rachael Pohle-Krauza, Matthew Krauza, Adrian Dan, John Zografakis
Obesity is a major risk factor for obstructive sleep apnea patients. In obese patients the severity of this risk can be reduced by bariatric surgery. This pilot study investigates the perioperative effects of bariatric surgery on obstructive sleep apnea and on the physical and biomechanical characteristics of the upper airway. Polysomnography and computer tomography data for 10 morbid obese patients promoted for bariatric surgery were conducted before surgery and at 6 and 12 months postoperatively for assessment of the oropharyngeal anatomy, and subsequent three-dimensional modelling of the airway...
January 12, 2018: Respiratory Physiology & Neurobiology
https://www.readbyqxmd.com/read/29338941/epiglottoplasty-technique-in-endoscopic-partial-laryngectomy
#11
M Moulin, C A Righini, P F Castellanos, I Atallah
The main advantage of endoscopic laser surgery for laryngeal cancer is to allow tumour resection, while limiting functional sequelae, thereby improving the postoperative course. In this type of surgery, the epiglottis is often partially resected, leaving a raw zone without any reconstruction. The surgical technique described here involves endoscopic reconstruction of the epiglottis after partial resection. The sectioned edge of the epiglottis is sutured to the base of the tongue to create a neoepiglottis and to reconstruct the vallecula, thus resembling preoperative anatomy, allowing improvement of postoperative swallowing...
January 12, 2018: European Annals of Otorhinolaryngology, Head and Neck Diseases
https://www.readbyqxmd.com/read/29338790/morphometric-characterisation-of-human-tracheas-focus-on-cartilaginous-ring-variation
#12
Y Premakumar, M F Griffin, M Szarko
PURPOSE: Details regarding tracheal anatomy are currently lacking, with existing literature focussing mainly on the cricoid-tracheal region or the carina. External gross anatomy and internal morphology throughout the entire trachea is important for normal physiological functioning and various clinical applications such as designs for tracheal implants or endotracheal devices. OBJECTIVE: To determine quantitative and qualitative characteristics of gross tracheal and individual tracheal ring anatomy...
January 16, 2018: BMC Research Notes
https://www.readbyqxmd.com/read/29338299/mitral-valve-replacement-via-a-left-thoracotomy-in-dextrocardia-and-situs-solitus
#13
María García Vieites, María Jose Martinez-Sapiña Llanas, Marcos Gómez Zincke, Beatriz Bouzas Zubeldía, Victor Bautista-Hernandez
Dextrocardia with situs solitus and severe mitral regurgitation is a rare clinical presentation which posse a surgical challenge and requires specific preoperative planning. A 54-year-old women with this anatomy, multiple thoracic procedures, and severe mitral valve regurgitation underwent successful mitral valve replacement with a 27-mm mechanical prosthesis through a left thoracotomy under ventricular fibrillation, on the basis of computed tomography findings. We emphasize the importance of preoperative planning and a surgical approach through a left thoracotomy and under ventricular fibrillation...
January 1, 2018: Asian Cardiovascular & Thoracic Annals
https://www.readbyqxmd.com/read/29338279/the-chondrocoracoideus-muscle-a-rare-anatomical-variant-of-the-pectoral-area
#14
Dionysios Venieratos, Alexandros Samolis, Maria Piagkou, Stergios Douvetzemis, Alexandrina Kourotzoglou, Kontantinos Natsis
OBJECTIVE: The study adds important information regarding the descriptive anatomy of a very rarely reported unilateral chondrocoracoideus muscle (of Wood). Additionally it highlights the concomitant muscular and neural alterations. CASE REPORT: The current case presents the occurrence of a chondrocoracoideus muscle situated left-sided, as an extension of the abdominal portion of the pectoralis major muscle (PM). The chondrocoracoideus coexisted with a contralateral atypical PM, partially blended with the clavicular fibers of the deltoid muscle...
November 2017: Acta Medica Academica
https://www.readbyqxmd.com/read/29338131/gross-anatomy-education-for-south-african-undergraduate-physiotherapy-students
#15
Dorothy A Shead, Ronel Roos, Benita Olivier, Amadi O Ihunwo
Eight faculties in South Africa offer undergraduate physiotherapy training with gross anatomy included as a basis for clinical practice. Little information exists about anatomy education for this student body. A 42-question peer-reviewed survey was distributed to physiotherapy gross anatomy course coordinators in all the eight faculties. Seven coordinators from six (75%) of the universities responded. Two respondents' data from the same university were pooled. Collected data show that staff qualifications and experience varied widely and high to average staff to student ratios exist between faculties...
January 16, 2018: Anatomical Sciences Education
https://www.readbyqxmd.com/read/29338121/does-confucianism-allow-for-body-donation
#16
REVIEW
D Gareth Jones, Jing-Bao Nie
Confucianism has been widely perceived as a major moral and cultural obstacle to the donation of bodies for anatomical purposes. The rationale for this is the Confucian stress on xiao (filial piety), whereby individuals' bodies are to be intact at death. In the view of many, the result is a prohibition on the donation of bodies to anatomy departments for the purpose of dissection. The role of dissection throughout the development of anatomy within a Confucian context is traced, and in contemporary China the establishment of donation programs and the appearance of memorial monuments is noted...
January 16, 2018: Anatomical Sciences Education
https://www.readbyqxmd.com/read/29337716/management-of-biceps-tendon-pathology-from-the-glenoid-to-the-radial-tuberosity
#17
Rachel M Frank, Eric J Cotter, Eric J Strauss, Laith M Jazrawi, Anthony A Romeo
Management of proximal and distal biceps tendon pathology is evolving. The long head of the biceps tendon, if inflamed, may be a pain-producing structure. In appropriately indicated patients, a symptomatic long head of the biceps tendon can be surgically managed via tenotomy, tenodesis, and/or superior labrum anterior to posterior repair. In some patients, primary superior labrum anterior to posterior pathology can be managed via biceps tenodesis. Determining which procedure is most appropriate and which technique and implant are preferred for a given patient with biceps tendon pathology is controversial...
January 15, 2018: Journal of the American Academy of Orthopaedic Surgeons
https://www.readbyqxmd.com/read/29337279/suprathreshold-fiber-cluster-statistics-leveraging-white-matter-geometry-to-enhance-tractography-statistical-analysis
#18
Fan Zhang, Weining Wu, Lipeng Ning, Gloria McAnulty, Deborah Waber, Borjan Gagoski, Kiera Sarill, Hesham M Hamoda, Yang Song, Weidong Cai, Yogesh Rathi, Lauren J O'Donnell
This work presents a suprathreshold fiber cluster (STFC) method that leverages the whole brain fiber geometry to enhance statistical group difference analyses. The proposed method consists of 1) a well-established study-specific data-driven tractography parcellation to obtain white matter tract parcels and 2) a newly proposed nonparametric, permutation-test-based STFC method to identify significant differences between study populations. The basic idea of our method is that a white matter parcel's neighborhood (nearby parcels with similar white matter anatomy) can support the parcel's statistical significance when correcting for multiple comparisons...
January 11, 2018: NeuroImage
https://www.readbyqxmd.com/read/29337042/endovascular-recanalization-for-nonmalignant-obstruction-of-the-inferior-vena-cava
#19
Young Erben, Haraldur Bjarnason, Gudrun L Oladottir, Robert D McBane, Peter Gloviczki
OBJECTIVE: The aim of this study was to evaluate outcomes of endovascular recanalization of the inferior vena cava (IVC) and iliac veins with long-standing chronic venous obstruction caused by nonmalignant disease. METHODS: Medical records for 66 patients who underwent endovascular recanalization of the IVC with or without iliac veins from January 2001 to December 2014 at our medical center were retrospectively reviewed. Primary outcomes included morbidity and mortality; secondary outcomes included primary, primary assisted, and secondary patency and resolution of symptoms...
January 11, 2018: Journal of Vascular Surgery. Venous and Lymphatic Disorders
https://www.readbyqxmd.com/read/29336881/influence-of-contracted-endodontic-access-on-root-canal-geometry-an-in%C3%A2-vitro-study
#20
Mario Alovisi, Damiano Pasqualini, Edoardo Musso, Elena Bobbio, Carlotta Giuliano, Davide Mancino, Nicola Scotti, Elio Berutti
INTRODUCTION: Contracted endodontic cavities (CECs) have developed from the concept of minimally invasive dentistry and provide an alternative to traditional endodontic cavities (TECs). They have been designed in an effort to preserve the mechanical stability of teeth. The contracted cavity design preserves more of the dentin but may influence the geometric shaping parameters. The aim of this micro-computed tomographic study was to evaluate the influence of contracted endodontic cavities on the preservation of the original root canal anatomy after shaping with nickel-titanium rotary instruments...
January 12, 2018: Journal of Endodontics
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