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https://www.readbyqxmd.com/read/29645389/perichondritis-am-ohr-eines-afghanischen-immigranten
#1
Zaid Z Almustafa, Bianca Sasama, Wiebke K Peitsch
No abstract text is available yet for this article.
April 2018: Journal der Deutschen Dermatologischen Gesellschaft, Journal of the German Society of Dermatology: JDDG
https://www.readbyqxmd.com/read/29610705/osteology-of-batrachuperus-londongensis-urodela-hynobiidae-study-of-bony-anatomy-of-a-facultatively-neotenic-salamander-from-mount-emei-sichuan-province-china
#2
Jian-Ping Jiang, Jia Jia, Meihua Zhang, Ke-Qin Gao
The Longdong Stream Salamander Batrachuperus londongensis , living in a mountain stream environment at Mt. Emei in Sichuan Province, China, represents a rare species that is facultatively neotenic in the family Hynobiidae. Although the species has been known to science for some 40 years since its initial discovery in the late 1970s, anatomical details of its osteology remain poorly understood and developmental information is still lacking for the species. This study (1) provides a detailed osteological account of B...
2018: PeerJ
https://www.readbyqxmd.com/read/29576831/acute-atraumatic-pinna-auricular-perichondritis
#3
Alan Lucerna, James Espinosa
No abstract text is available yet for this article.
2018: World Journal of Emergency Medicine
https://www.readbyqxmd.com/read/29557249/an-atypical-perichondritis
#4
Emilie Bois, Caroline Halimi
No abstract text is available yet for this article.
March 1, 2018: Otolaryngology—Head and Neck Surgery
https://www.readbyqxmd.com/read/29334575/measurement-of-warping-angle-in-human-rib-graft-an-experimental-study
#5
Safvet Ors
BACKGROUND: The purpose of this study was to determine the warping angle of the costal cartilage in vivo. METHODS: A nasal framework reconstruction with a rib graft was performed in a total of 130 patients. After the cartilage specimens were prepared, the remaining grafts were used for study. The angle of warping in all grafts was measured at 0, 30, and 60 minutes; after 24 hours; and after 1 week. Eight subgroups of graft thicknesses from central and peripheral groups, determined according to the perichondral distance of the grafts, were evaluated, and the warping angles of 48 osteochondral and chondral grafts were measured individually...
May 2018: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/29281687/vascularization-and-odontode-structure-of-a-dorsal-ridge-spine-of-romundina-stellina-%C3%A3-rvig-1975
#6
Anna Jerve, Qingming Qu, Sophie Sanchez, Per Erik Ahlberg, Tatjana Haitina
There are two types of dermal skeletons in jawed vertebrates: placoderms and osteichthyans carry large bony plates (macromery), whereas chondrichthyans and acanthodians are covered by small scales (micromery). Fin spines are one of the last large dermal structures found on micromeric taxa and offer a potential source of histology and morphology that can be compared to those found on macromeric groups. Dermal fin spines offer a variety of morphology but aspects of their growth modes and homology are unclear...
2017: PloS One
https://www.readbyqxmd.com/read/29211334/perichondritis-of-the-ear-in-an-afghan-immigrant
#7
Zaid Z Almustafa, Bianca Sasama, Wiebke K Peitsch
No abstract text is available yet for this article.
December 6, 2017: Journal der Deutschen Dermatologischen Gesellschaft, Journal of the German Society of Dermatology: JDDG
https://www.readbyqxmd.com/read/29174111/-pseudomonas-aeruginosa-in-post-piercing-perichondritis-two-case-reports
#8
A-G Lelong, S Mallet, C Le Treut, J-C Dubus, A Carsin, E Bosdure
The frequency of body piercing has increased in France over the past few years, particularly among teenagers. Piercing can be performed at different sites on the body, especially in the cartilage of the ears. We relate two cases of Pseudomonas aeruginosa chondritis. A 10-year retrospective study at the Marseille University Hospital found no additional pediatric cases. These infectious complications can sometimes be necrotizing. It is therefore important to inform the medical staff on the hygiene measures that need to be respected and the patients on the treatment to follow after the piercing as well as the signs to watch for, possibly indicating chondritis...
December 2017: Archives de Pédiatrie: Organe Officiel de la Sociéte Française de Pédiatrie
https://www.readbyqxmd.com/read/28859672/safety-and-in-vivo-immune-assessment-of-escalating-doses-of-oral-laquinimod-in-patients-with-rrms
#9
Tjalf Ziemssen, Hayrettin Tumani, Tony Sehr, Katja Thomas, Friedemann Paul, Nils Richter, Emil Samara, Ofer Spiegelstein, Ella Sorani, Oren Bar-Ilan, Dorit Mimrod, Liat Hayardeny
BACKGROUND: Laquinimod is an oral immunomodulator in clinical development to treat relapsing-remitting multiple sclerosis (RRMS). Laquinimod is in clinical development for the treatment of multiple sclerosis and Huntington Disease (HD). The objective of this study is to assess the safety, tolerability, pharmacokinetics (PK) and cytoimmunologic effects following escalating doses of laquinimod in patients with RRMS. METHODS: One hundred twelve patients were randomly assigned to laquinimod/placebo in a series of separate dose-escalating cohorts starting from a daily oral dose of 0...
August 31, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28771743/laryngeal-abscess-formation-in-an-immunosuppressed-patient-a-case-report
#10
Derek L Vanhille, Joel H Blumin
Prior to the onset of the antibiotic era, laryngeal perichondritis and abscess formation were more frequent complications of systemic infections. We report a case of 54-year-old male who was medically immunosuppressed after kidney transplantation and developed multiple pseudomonas abscesses of his larynx. After failing initial treatment and with worsening signs and symptoms, the patient eventually was treated with a prolonged course of intravenous and oral antibiotics, with resolution of his symptoms and clinical findings...
December 2017: Laryngoscope
https://www.readbyqxmd.com/read/28724461/tuberculous-otitis-media-a-resurgence
#11
M Kameswaran, K Natarajan, M Parthiban, P V Krishnan, S Raghunandhan
OBJECTIVE: Tuberculosis is a global health problem that is especially prevalent in developing countries such as India. Recently, atypical presentation has become more common and a high index of suspicion is essential. This study analysed the various presenting symptoms and signs of tuberculous otitis media and the role of diagnostic tests, with the aim of formulating criteria for the diagnosis. METHODS: A total of 502 patients underwent tympanomastoidectomy over a two-year period...
September 2017: Journal of Laryngology and Otology
https://www.readbyqxmd.com/read/28715414/kinesin-1-promotes-chondrocyte-maintenance-during-skeletal-morphogenesis
#12
Adrian Santos-Ledo, Marina Garcia-Macia, Philip D Campbell, Marta Gronska, Florence L Marlow
During skeletal morphogenesis diverse mechanisms are used to support bone formation. This can be seen in the bones that require a cartilage template for their development. In mammals the cartilage template is removed, but in zebrafish the cartilage template persists and the bone mineralizes around the cartilage scaffold. Remodeling of unmineralized cartilage occurs via planar cell polarity (PCP) mediated cell rearrangements that contribute to lengthening of elements; however, the mechanisms that maintain the chondrocyte template that supports perichondral ossification remain unclear...
July 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28176372/development-of-the-skull-and-pectoral-girdle-in-siberian-sturgeon-acipenser-baerii-and-russian-sturgeon-acipenser-gueldenstaedtii-acipenseriformes-acipenseridae
#13
Peter Warth, Eric J Hilton, Benjamin Naumann, Lennart Olsson, Peter Konstantinidis
The head is considered the major novelty of the vertebrates and directly linked to their evolutionary success. Its form and development as well as its function, for example in feeding, is of major interest for evolutionary biologists. In this study, we describe the skeletal development of the cranium and pectoral girdle in Siberian (Acipenser baerii) and Russian sturgeon (A. gueldenstaedtii), two species that are commonly farmed in aquaculture and increasingly important in developmental studies. This study comprises the development of the neuro-, viscero- and dermatocranium and the dermal and chondral components of the pectoral girdle, from first condensation of chondrocytes in prehatchlings to the early juvenile stage and reveals a clear pattern in formation...
March 2017: Journal of Morphology
https://www.readbyqxmd.com/read/28170434/the-internal-cranial-anatomy-of-romundina-stellina-%C3%A3-rvig-1975-vertebrata-placodermi-acanthothoraci-and-the-origin-of-jawed-vertebrates-anatomical-atlas-of-a-primitive-gnathostome
#14
Vincent Dupret, Sophie Sanchez, Daniel Goujet, Per Erik Ahlberg
Placoderms are considered as the first jawed vertebrates and constitute a paraphyletic group in the stem-gnathostome grade. The acanthothoracid placoderms are among the phylogenetically most basal and morphologically primitive gnathostomes, but their neurocranial anatomy is poorly understood. Here we present a near-complete three-dimensional skull of Romundina stellina, a small Early Devonian acanthothoracid from the Canadian Arctic Archipelago, scanned with propagation phase contrast microtomography at a 7...
2017: PloS One
https://www.readbyqxmd.com/read/28145573/static-osteogenesis-does-not-precede-dynamic-osteogenesis-in-periosteal-ossification-of-pleurodeles-caudata-amphibia-and-pogona-squamata-lepidosauria
#15
Jorge Cubo, Mylaine Hui, François Clarac, Alexandra Quilhac
Two successive mechanisms have been described in perichondral ossification: (1) in static osteogenesis, mesenchymal cells differentiate into stationary osteoblasts oriented randomly, which differentiate into osteocytes in the same site; (2) in dynamic osteogenesis, mesenchymal cells differentiate into osteoblasts that are all oriented in the same direction and move back as they secrete collagen fibers. This study is aimed at testing the hypothesis that the ontogenetic sequence static then dynamic osteogenesis observed in the chicken and in the rabbit is homologous and was acquired by the last common ancestor of amniotes or at a more inclusive node...
May 2017: Journal of Morphology
https://www.readbyqxmd.com/read/27993982/a-vertebrate-specific-and-essential-role-for-osterix-in-osteogenesis-revealed-by-gene-knockout-in-the-teleost-medaka
#16
Tingsheng Yu, Martin Graf, Joerg Renn, Manfred Schartl, Daria Larionova, Ann Huysseune, Paul Eckhard Witten, Christoph Winkler
osterix (osx; sp7) encodes a zinc-finger transcription factor that controls osteoblast differentiation in mammals. Although identified in all vertebrate lineages, its role in non-mammalian bone formation remains elusive. Here, we show that an osx mutation in medaka results in severe bone defects and larval lethality. Pre-osteoblasts fail to differentiate leading to severe intramembranous and perichondral ossification defects. The notochord sheath mineralizes normally, supporting the idea of an osteoblast-independent mechanism for teleost vertebral centra formation...
January 15, 2017: Development
https://www.readbyqxmd.com/read/27900228/xiphoidectomy-a-surgical-intervention-for-an-underdocumented-disorder
#17
Dirk Pieter Hogerzeil, Klaas Albert Hartholt, Mark Rem de Vries
Two patients who presented with nonspecific thoracic and upper abdominal symptoms and tenderness of the xiphoid process are discussed. Both patients had undergone extensive examinations, but no source for their symptoms could be found. Plain chest radiographs revealed an anterior displacement of the xiphoid process in both patients. Physical examination confirmed this to be the primary source of discomfort. Anterior displacement of the xiphoid process may be the result of significant weight gain. Repeated trauma of the afflicted area, unaccustomed heavy lifting, exercise, and perichondritis are, amongst other causes, believed to contribute to the development of xiphodynia...
2016: Case Reports in Surgery
https://www.readbyqxmd.com/read/27860464/vertebral-development-and-ossification-in-the-siberian-sturgeon-acipenser-baerii-with-new-insights-on-bone-histology-and-ultrastructure-of-vertebral-elements-and-scutes
#18
Amandine Leprévost, Thierry AzaÏs, Michael Trichet, Jean-Yves Sire
In order to improve our knowledge on the vertebral development, structure and mineralization in Acipenseriformes, we undertook a study in a growth series of reared Siberian sturgeons (Acipenser baerii) using in toto clear and stain specimens, histological and ultrastructural observations, X-ray micro-tomography, and solid state NMR analyses. Scutes were also studied to compare the tissue structure and mineralization of endoskeletal and dermal skeletal elements. This study completes and clarifies previous investigations on vertebral development and architecture in sturgeons, and brings original data on the structure of (i) the perichondral bone that is progressively deposited around the vertebral elements during ontogeny, (ii) the typical cartilage composing these elements, and (iii) the scutes...
March 2017: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/27508137/boomerang-shaped-chondro-perichondral-graft-versus-temporalis-muscle-fascia-graft-which-one-is-to-be-trusted
#19
Riza Dundar, Erkan Kulduk, Fatih Kemal Soy, Mehmet Aslan, Ahmet Yükkaldiran, Mehmet Ali Çiftçi
The aim of this study was to compare anatomical and audiological results of boomerang-shaped chondroperichondrial graft (BSCPG) with temporal muscle fascia in type 1 tympanoplasties. Sixty-eight patients in BSCPG group and 54 patients in fascia group were evaluated. Otomicroscopic examination was done periodically till 24 months as for graft perforation, lateralization and retraction and mean air conduction threshold and airbone gap values were measured. At long term controls, in BSCPG group, rates of neomembrane, perforation, retraction and lateralization were 91...
September 2016: Indian Journal of Otolaryngology and Head and Neck Surgery
https://www.readbyqxmd.com/read/27497428/efficacy-of-antibiotic-prophylaxis-prior-to-tympanoplasty-for-contaminated-cholesteatoma
#20
Nathan E Pierce, Patrick J Antonelli
OBJECTIVES: To evaluate the efficacy of combined antistaphylococcal and antipseudomonal preoperative antibiotics for preventing surgical site infections following tympanoplasty and mastoidectomy with contaminated cholesteatoma. STUDY DESIGN: Retrospective chart review. METHODS: Medical records of patients who underwent tympanoplasty ± mastoidectomy for cholesteatoma were reviewed. Only cases considered to have contaminated or dirty surgical fields were included...
October 2016: Laryngoscope
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