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https://www.readbyqxmd.com/read/28340314/ocular-manifestations-in-children-with-juvenile-onset-systemic-lupus-erythematosus
#1
Ghada Gawdat, Dina El-Fayoumi, Huda Marzouk, Yomna Farag
PURPOSE: To study the ocular manifestations of juvenile systemic lupus erythematosus (JSLE), including the ocular side-effects of the systemic medications used. METHODS: A descriptive cross-sectional study on 40 children diagnosed with JSLE was conducted. Ophthalmological and laboratory investigations as well as a calculation of the Systemic Lupus Disease Activity Index 2000 (SLEDAI-2K) were performed. RESULTS: Forty consecutive children, 32 females and 8 males, with JSLE were examined...
March 24, 2017: Seminars in Ophthalmology
https://www.readbyqxmd.com/read/28334147/variations-in-acetylcholinesterase-activity-within-human-cortical-pyramidal-neurons-across-age-and-cognitive-trajectories
#2
Monica Janeczek, Tamar Gefen, Mehrnoosh Samimi, Garam Kim, Sandra Weintraub, Eileen Bigio, Emily Rogalski, M-Marsel Mesulam, Changiz Geula
We described an extensive network of cortical pyramidal neurons in the human brain with abundant acetylcholinesterase (AChE) activity. Emergence of these neurons during childhood/adolescence, attainment of highest density in early adulthood, and virtual absence in other species led us to hypothesize involvement of AChE within these neurons in higher cortical functions. The current study quantified the density and staining intensity of these neurons using histochemical procedures. Few faintly stained AChE-positive cortical pyramidal neurons were observed in children/adolescents...
March 1, 2017: Cerebral Cortex
https://www.readbyqxmd.com/read/28323018/modulation-of-auditory-percepts-by-transcutaneous-electrical-stimulation
#3
Margarete Anna Ueberfuhr, Amalia Braun, Lutz Wiegrebe, Benedikt Grothe, Markus Drexl
Transcutaneous, electrical stimulation with electrodes placed on the mastoid processes represents a specific way to elicit vestibular reflexes in humans without active or passive subject movements, for which the term galvanic vestibular stimulation was coined. It has been suggested that galvanic vestibular stimulation mainly affects the vestibular periphery, but whether vestibular hair cells, vestibular afferents, or a combination of both are excited, is still a matter of debate. Galvanic vestibular stimulation has been in use since the late 18(th) century, but despite the long-known and well-documented effects on the vestibular system, reports of the effect of electrical stimulation on the adjacent cochlea or the ascending auditory pathway are surprisingly sparse...
March 17, 2017: Hearing Research
https://www.readbyqxmd.com/read/28322092/physico-chemical-changes-in-karkade-hibiscus-sabdariffa-l-seedlings-responding-to-salt-stress
#4
Abdelnasser Galal
Salinity is one of the major abiotic stress factors affecting series of morphological, physiological, metabolic and molecular changes in plant growth. The effect of different concentrations (0, 25, 50, 100 and 150 mM) of NaCl on the vegetative growth and some physiological parameters of karkade (Hibiscus sabdariffa var. sabdariffa) seedling were investigated. NaCl affected the germination rate, delayed emergence and retarded vegetative growth of seedlings. The length of seedling as well as the leaf area was significantly reduced...
March 2017: Acta Biologica Hungarica
https://www.readbyqxmd.com/read/28321994/detection-and-imaging-of-chrome-yellow-lead-chromate-in-latent-prints-solid-residues-and-minerals-by-laser-desorption-ionization-mass-spectrometry-ldi-ms
#5
Zhaoyu Zheng, Julius Pavlov, Athula B Attygalle
In the past, Chrome Yellow (lead chromate, PbCrO4 ), a bright orange-red substance, has been widely used as an inorganic pigment in the production of paints, coatings, and plastics. Herein, we demonstrate that laser desorption/ionization mass spectrometry (LDI-MS) is a powerful tool for the detection of lead chromate in solid residues. In fact, lead chromate in trace amounts is easily detectable by LDI-MS even from residues left as latent prints. For example, a latent print obtained by stamping the exposed laterally cut surface of a pencil over 50 years old on an acetonitrile-moistened paper, was successfully imaged for both lead and chromate using a Synapt G2 HDMS mass spectrometer...
March 21, 2017: Journal of Mass Spectrometry: JMS
https://www.readbyqxmd.com/read/28314108/-i-roegneria-alashanica-i-keng-a-species-with-the-b-ststst-sup-y-sup-st-sup-y-sup-b-genome-constitution
#6
Richard R-C Wang, Kevin B Jensen
The genome constitution of tetraploid <i>Roegneria alashanica</I> Keng has been in question for a long time. Most scientific studies have suggested that <i>R. alashanica</I> had two versions of the <b>St</b> genome, <b>St<sub>1</sub>St<sub>2</sub></b>, similar to that of <i>Pseudoroegneria elytrigioides</I> (C. Yen et J. L. Yang) B. R. Lu. A study, however, concluded that <i>R. alashanica</I> had the <b>StY</b> genome formula typical for tetraploid <i>Roegneria</I> species...
March 17, 2017: Genome Génome / Conseil National de Recherches Canada
https://www.readbyqxmd.com/read/28300994/the-choking-game-a-new-craze-among-brazilian-children-and-young-people-psychophysiological-behavioral-and-epidemiological-characteristics-of-asphyxial-games
#7
Juliana Guilheri, Anne Andronikof, Latife Yazigi
The 'choking game' is a risk-taking behavior that has spread quickly among children and young people, causing dependence, accidents and even death, including in Brazil. These activities are performed in order to experience fleeting euphoric sensations, attracting numerous participants through the thousands of videos posted on YouTube. The problem of 'asphyxial games' can be observed in the Brazilian digital media, although there is a lack of scientific studies. Through a systematic review of the literature and complementary material, this paper aims to address the 'asphyxial games', warning about the psychophysiological and behavioral effects of these practices, while also presenting international epidemiological data...
March 2017: Ciência & Saúde Coletiva
https://www.readbyqxmd.com/read/28298033/diffusion-tractography-imaging-guided-frameless-linear-accelerator-stereotactic-radiosurgical-thalamotomy-for-tremor-case-report
#8
Won Kim, Justin Sharim, Stephen Tenn, Tania Kaprealian, Yvette Bordelon, Nzhde Agazaryan, Nader Pouratian
Essential tremor and Parkinson's disease-associated tremor are extremely prevalent within the field of movement disorders. The ventral intermediate (VIM) nucleus of the thalamus has been commonly used as both a neuromodulatory and neuroablative target for the treatment of these forms of tremor. With both deep brain stimulation and Gamma Knife radiosurgery, there is an abundance of literature regarding the surgical planning, targeting, and outcomes of these methodologies. To date, there have been no reports of frameless, linear accelerator (LINAC)-based thalomotomies for tremor...
February 24, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28296757/radiological-prediction-of-tumor-invasiveness-of-lung-adenocarcinoma-on-thin-section-ct
#9
Masahiro Yanagawa, Takeshi Johkoh, Masayuki Noguchi, Eiichi Morii, Yasushi Shintani, Meinoshin Okumura, Akinori Hata, Maki Fujiwara, Osamu Honda, Noriyuki Tomiyama
To evaluate thin-section computed tomography (CT) (TSCT) features that differentiate adenocarcinoma in situ (AIS), minimally invasive adenocarcinoma (MIA), and invasive adenocarcinoma (IVA), and to determine the size of solid portion on CT that correlates to pathological invasive components. Forty-eight patients were included. Nodules were classified into ground-glass nodule (GGN), part-solid, solid, and heterogeneous. Visual density of GGNs was subjectively evaluated using reference standard images: faint GGN (Ga), <-700 Hounsfield unit (HU); intermediate GGN (Gb), from -700 to -400 HU; dense GGN (Gc), >-400 HU; and mixed (Ga + Gb, Ga + Gc, and Gb + Gc)...
March 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28294471/ultra-brief-behavioral-skills-trainings-for-blood-injection-injury-phobia
#10
Alicia E Meuret, Erica Simon, Lavanya Bhaskara, Thomas Ritz
BACKGROUND: Blood injection injury (BII) phobia is common, with debilitating consequences to the health and well being of many of its sufferers. BII phobia presents with a unique fear response that can involve drops in blood pressure and ultimately fainting. The aim of this study was to provide proof of concept for a line of brief, easy to implement, video-based interventions for reducing phobic avoidance and fears in BII sufferers. One of the interventions was a novel Hypoventilation Respiratory Training (HRT) aimed at reducing the exaggerated ventilation response (hyperventilation) seen in BII phobia...
March 15, 2017: Depression and Anxiety
https://www.readbyqxmd.com/read/28290650/fainting-what-you-should-know
#11
(no author information available yet)
No abstract text is available yet for this article.
March 1, 2017: American Family Physician
https://www.readbyqxmd.com/read/28288688/postoperative-brachial-artery-entrapment-associated-with-pediatric-supracondylar-fracture-of-the-humerus-a-case-report
#12
David Latz, Jan Grassmann, Erik Schiffner, Sebastian Gehrmann, Mansur Duran, Joachim Windolf, Pascal Jungbluth
BACKGROUND: Severely displaced supracondylar fractures of the humerus in children are frequently associated with complications including neurovascular injuries, non-union, or compartment syndrome. In the current literature, no report exists about postoperative brachial artery entrapment in combination with an inconspicuous preoperative neurovascular examination. CASE PRESENTATION: We present a case of a 6-year-old white boy with a pulseless radial and ulnar artery after open reduction and internal fixation of a severely displaced supracondylar fracture of his right humerus (Gartland type III) using four K-wires...
March 14, 2017: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/28274225/case-report-fainting-during-acupuncture-stimulation-at-acupuncture-point-li4
#13
O Sang Kwon, Kwang-Ho Choi, Junbeom Kim, Seong Jin Cho, Suk-Yun Kang, Ji-Young Moon, Yeon Hee Ryu
BACKGROUND: Fainting is one of the major adverse events that can occur as a result of acupuncture treatment. However, the observation of changes in biological parameters is rarely available when fainting occurs. In this case report, we could observe changes in the electroencephalogram (EEG) in a participant who fainted while participating in a clinical trial aiming to observe a relationship between acupuncture stimulation at LI4 acupuncture point and EEG in healthy adults. CASE PRESENTATION: The EEG pattern of participant changed twice...
March 9, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28270483/propionibacterium-acnes-as-a-possible-pathogen-of-granuloma-in-patients-with-ocular-sarcoidosis
#14
Hiroshi Goto, Yoshihiko Usui, Akihiko Umazume, Keisuke Uchida, Yoshinobu Eishi
BACKGROUND/AIMS: To detect Propionibacterium acnes from intraocular granuloma in patients with ocular sarcoidosis. METHODS: Ten patients (10 eyes) with uveitis associated with sarcoidosis, who underwent vitrectomy to remove the epiretinal membrane were analysed. The patients were 70.4±7.6 (mean±SD) years of age, and the observation period from diagnosis of sarcoidosis until vitrectomy was 27.6±15.1 months. Histopathological examination of paraffin-embedded sections of the excised epiretinal membranes was conducted by H&E staining and immunohistochemical staining using PAB antibody, which is a monoclonal antibody against P...
March 7, 2017: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/28261977/tissue-specific-mosaicism-for-a-lethal-osteogenesis-imperfecta-col1a1-mutation-causes-mild-oi-eds-overlap-syndrome
#15
Sofie Symoens, Wouter Steyaert, Lynn Demuynck, Anne De Paepe, Karin E M Diderich, Fransiska Malfait, Paul J Coucke
Type I collagen is the predominant protein of connective tissues such as skin and bone. Mutations in the type I collagen genes (COL1A1 and COL1A2) mainly cause osteogenesis imperfecta (OI). We describe a patient with clinical signs of Ehlers-Danlos syndrome (EDS), including fragile skin, easy bruising, recurrent luxations, and fractures resembling mild OI. Biochemical collagen analysis of the patients' dermal fibroblasts showed faint overmodification of the type I collagen bands, a finding specific for structural defects in type I collagen...
March 6, 2017: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/28261011/multiquadric-spline-based-interactive-segmentation-of-vascular-networks
#16
Sachin Meena, V B Surya Prasath, Yasmin M Kassim, Richard J Maude, Olga V Glinskii, Vladislav V Glinsky, Virginia H Huxley, Kannappan Palaniappan
Commonly used drawing tools for interactive image segmentation and labeling include active contours or boundaries, scribbles, rectangles and other shapes. Thin vessel shapes in images of vascular networks are difficult to segment using automatic or interactive methods. This paper introduces the novel use of a sparse set of user-defined seed points (supervised labels) for precisely, quickly and robustly segmenting complex biomedical images. A multiquadric spline-based binary classifier is proposed as a unique approach for interactive segmentation using as features color values and the location of seed points...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28261007/random-forests-for-dura-mater-microvasculature-segmentation-using-epifluorescence-images
#17
Yasmin M Kassim, V B Surya Prasath, Rengarajan Pelapur, Olga V Glinskii, Richard J Maude, Vladislav V Glinsky, Virginia H Huxley, Kannappan Palaniappan
Automatic segmentation of microvascular structures is a critical step in quantitatively characterizing vessel remodeling and other physiological changes in the dura mater or other tissues. We developed a supervised random forest (RF) classifier for segmenting thin vessel structures using multiscale features based on Hessian, oriented second derivatives, Laplacian of Gaussian and line features. The latter multiscale line detector feature helps in detecting and connecting faint vessel structures that would otherwise be missed...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28244210/clinical-characteristics-and-outcome-of-patients-with-situational-syncope-compared-to-patients-with-vasovagal-syncope
#18
Kevin E Wenzke, Kathleen E Walsh, Matthew Kalscheur, Stephen Wasmund, Richard L Page, Michele Brignole, Mohamed H Hamdan
BACKGROUNDS: The purpose of the study was to assess the clinical outcome of patients with situational syncope (SS) compared to patients with vasovagal syncope (VVS). METHODS: We assessed the prevalence, patients' characteristics and outcome of consecutive patients with SS and VVS who presented to the Faint and Fall Clinic (University of Wisconsin) between January 2013 and December 2015. RESULTS: SS was found in 55/1401(4.0%) syncope patients with follow-up data available in 47 patients: defecation (n = 16), micturition (n = 15), cough (n = 10), swallow (n = 3), laughter (n = 1), sneeze (n = 1) and cough plus laughter (n = 1)...
February 28, 2017: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/28243536/eotaria-citrica-sp-nov-a-new-stem-otariid-from-the-topanga-formation-of-southern-california
#19
Jorge Velez-Juarbe
A new taxon of stem otariid, Eotaria citrica sp. nov., is described from the upper Burdigalian to lower Langhian "Topanga" formation of Orange County, California. The new species is described from mandibular and dental remains that show a unique combination of plesiomorphic and derived characters. Specifically, it is characterized by having trenchant and prominent paraconid cusps in p3-m1, lingual cingula of p2-4 with faint crenulations, premolars and molars with vestigial metaconid, bilobed root of m2 and a genial tuberosity located under p3...
2017: PeerJ
https://www.readbyqxmd.com/read/28236458/comparison-of-specific-fainting-characteristics-between-youth-with-tilt-induced-psychogenic-nonsyncopal-collapse-versus-reflex-syncope
#20
Geoffrey L Heyer, Rebecca A Harvey, Monica P Islam
Little is known about the predictive features of psychogenic nonsyncopal collapse (PNSC). The aim of the present study was to compare the self-reported fainting characteristics between young patients who were ultimately diagnosed with PNSC with those ultimately diagnosed with neurally mediated syncope and to determine which features were predictive of either diagnosis. A prospective study was conducted of sequential patients referred for fainting. All study data were obtained before testing or diagnosis. Several fainting characteristics were compared between cohorts including numbers of lifetime fainting episodes, fainting frequency the week before evaluation, fainting duration, numbers of fainting spells in a single day, presence of presyncope, types of prodromal symptoms, tearfulness with fainting, and the numbers of emergency department visits and hospital admission for fainting...
April 1, 2017: American Journal of Cardiology
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