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https://www.readbyqxmd.com/read/27895246/a-case-of-congenital-anosmia
#1
Umesh Vivekananda, Nader Khandanpour, Salah Omer
No abstract text is available yet for this article.
November 29, 2016: Neurology
https://www.readbyqxmd.com/read/27863011/congenital-anosmia-our-experience-of-eleven-patients-with-aplasia-or-hypoplasia-of-the-olfactory-tract
#2
Jason Powell, Ivan Zammit-Maempel, Sean Carrie
Anosmia is present in approximately 1% of the population and can have a significant impact on quality of life (1) . In contrast to acquired anosmia, congenital anosmia is a relatively rare condition characterized by a complete lack of olfactory perception and the aplasia or hypoplasia of the olfactory bulb. Kallmann syndrome (congenital hypogonadotropic hypogonadism and anosmia) is the best known condition assoicated with congenital anosmia (2,3) . Kallmann Syndrome has a prevalence of around 1 in 8000, and is five times more common in men than women (2,3) ...
November 14, 2016: Clinical Otolaryngology
https://www.readbyqxmd.com/read/27849216/olfactory-function-and-quality-of-life-after-olfaction-rehabilitation-in-total-laryngectomees
#3
Christiane Gouvêa Dos Santos, Anke Bergmann, Kaliani Lima Coça, Angela Albuquerque Garcia, Tânia Cristina de Oliveira Valente
Purpose: To evaluate the effects of olfaction rehabilitation in the olfactory function and quality of life of total laryngectomized patients. Methods: Pre-post intervention clinical study conducted with total laryngectomees submitted to olfaction rehabilitation by means of the Nasal Airflow-Inducing Maneuver (NAIM) using the University of Pennsylvania Smell Identification Test (UPSIT), Olfactory Acuity Questionnaires, a Monitoring Questionnaire, and the University of Washington Quality of Life Questionnaire (UW-QOL)...
November 16, 2016: CoDAS
https://www.readbyqxmd.com/read/27785336/type-3-adenylyl-cyclase-a-key-enzyme-mediating-the-camp-signaling-in-neuronal-cilia
#4
REVIEW
Liyan Qiu, Robert P LeBel, Daniel R Storm, Xuanmao Chen
Cilia are rigid, centriole-derived, microtubule-based organelles present in a majority of vertebrate cells including neurons. They are considered the cellular "antennae" attuned for detecting a range of extracellular signals including photons, odorants, morphogens, hormones and mechanical forces. The ciliary microenvironment is distinct from most actin-based subcellular structures such as microvilli or synapses. In the nervous system, there is no evidence that neuronal cilia process any synaptic structure. Apparently, the structural features of neuronal cilia do not allow them to harbor any synaptic connections...
2016: International Journal of Physiology, Pathophysiology and Pharmacology
https://www.readbyqxmd.com/read/27773560/surgical-resection-of-sinonasal-hemangiopericytoma-involving-anterior-skull-base-case-reports-and-literature-review
#5
Jonathan C Simmonds, Elie E Rebeiz
Hemangiopericytomas are soft tissue tumors composed of pericytic cells that are characterized by their "staghorn" vascular branching and their variable clinical presentation. Fifteen to 25% of all HPC occur in the head and neck, with only 5% found in the nose or paranasal sinuses. Sinonasal hemangiopericytoma (SNHPC) is considered distinct from its soft tissue counterpart - the former showing a more uniform cellular organization, has convincing pericytic differentiation and is associated with a far better prognosis...
September 28, 2016: American Journal of Otolaryngology
https://www.readbyqxmd.com/read/27772753/antioxidant-and-inflammatory-biomarkers-for-the-identification-of-prodromal-parkinson-s-disease
#6
Jonica Campolo, Renata De Maria, Lorena Cozzi, Marina Parolini, Stefano Bernardi, Paola Proserpio, Lino Nobili, Giorgio Gelosa, Immacolata Piccolo, Elio C Agostoni, Maria G Trivella, Paolo Marraccini
OBJECTIVES: We explored the role of oxidative stress and inflammatory molecules as potential Parkinson (PD) biomarkers and correlated biological with non-motor abnormalities (olfactory impairment and dysautonomia), in patients with idiopathic REM behavior disorder (iRBD) (prodromal PD) and established PD. METHODS: We recruited 11 iRBD and 15 patients with idiopathic PD (Hohen&Yahr 1-3, on L-DOPA and dopamine agonists combination therapy) and 12 age- and sex-matched controls (CTRL)...
November 15, 2016: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/27763976/transseptal-subperichondrial-endoscopic-hypophysectomy-with-preservation-of-vital-nasal-structures
#7
Hasmet Yazici, Sedat Doğan, Mehmet Akif Sönmez, Olcay Eser
INTRODUCTION: Pituitary surgery involving different techniques is often applied to the excision of benign adenomas. Operative interventions involved various approaches and techniques. Endoscopic transsphenoidal approach is the less traumatic route to the sella turcica, avoiding brain retraction, and also permitting good visualization, with lower rates of morbidity and mortality. Although mortality of pituitary surgery decreased by advances in surgical techniques morbidities such as synechiae formation, anosmia, bleeding, nasal septal perforations, drying, and incrustation due to traumatization of the nasal structures such as septum, nasal mucosa, and middle concha are the current problems in pituitary surgery...
October 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/27762302/machine-learned-pattern-identification-in-olfactory-subtest-results
#8
Jörn Lötsch, Thomas Hummel, Alfred Ultsch
The human sense of smell is often analyzed as being composed of three main components comprising olfactory threshold, odor discrimination and the ability to identify odors. A relevant distinction of the three components and their differential changes in distinct disorders remains a research focus. The present data-driven analysis aimed at establishing a cluster structure in the pattern of olfactory subtest results. Therefore, unsupervised machine-learning was applied onto olfactory subtest results acquired in 10,714 subjects with nine different olfactory pathologies...
October 20, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27723843/olfactory-dysfunction-is-associated-with-the-intake-of-macronutrients-in-korean-adults
#9
Il Gyu Kong, So Young Kim, Min-Su Kim, Bumjung Park, Jin-Hwan Kim, Hyo Geun Choi
BACKGROUND: Olfactory function can impact food selection. However, few large population-based studies have investigated this effect across different age groups. The objective of this study was to assess the association between subjective olfactory dysfunction (anosmia or hyposmia) and macronutrient intake. METHODS: A total of 24,990 participants aged 20 to 98 years were evaluated based on data collected through the Korea National Health and Nutrition Examination Survey from 2008 through 2012...
2016: PloS One
https://www.readbyqxmd.com/read/27679830/kallmann-syndrome-and-deafness-an-uncommon-combination-a-case-report-and-a-literature-review
#10
Nader Salama
BACKGROUND: Kallmann syndrome (Kal S) is an isolated form of hypogonadotrophic hypogonadism in combination with a defect in smell sensation. Depending on the genetic form of the disease, a number of non-reproductive, non-olfactory abnormalities may also be existent. In the present report, we describe a male with Kal S associated with hearing loss, and the successful treatment of his sexual and reproductive defects. CASE: A 23-year-old Caucasian man presented with a lifelong lack of erection and ejaculation...
August 2016: International Journal of Reproductive Biomedicine (Yazd, Iran)
https://www.readbyqxmd.com/read/27649965/after-oxidation-zinc-nanoparticles-lose-their-ability-to-enhance-responses-to-odorants
#11
Samantha Hagerty, Yasmine Daniels, Melissa Singletary, Oleg Pustovyy, Ludmila Globa, William A MacCrehan, Shin Muramoto, Gheorghe Stan, June W Lau, Edward E Morrison, Iryna Sorokulova, Vitaly Vodyanoy
Electrical responses of olfactory sensory neurons to odorants were examined in the presence of zinc nanoparticles of various sizes and degrees of oxidation. The zinc nanoparticles were prepared by the underwater electrical discharge method and analyzed by atomic force microscopy and X-ray photoelectron spectroscopy. Small (1.2 ± 0.3 nm) zinc nanoparticles significantly enhanced electrical responses of olfactory neurons to odorants. After oxidation, however, these small zinc nanoparticles were no longer capable of enhancing olfactory responses...
December 2016: Biometals: An International Journal on the Role of Metal Ions in Biology, Biochemistry, and Medicine
https://www.readbyqxmd.com/read/27625887/olfactory-neuroblastoma-followed-by-emergency-surgery-for-symptomatic-intradural-spinal-metastasis-a-case-report
#12
Masatoshi Yunoki, Kenta Suzuki, Atsuhito Uneda, Kimihiro Yoshino
BACKGROUND: Olfactory neuroblastoma (ONB) is a rare, aggressive tumor of the nasal cavity. It may invade the paranasal cavities and anterior skull base locally but may also metastasize to the cervical lymph nodes, lungs, or distant central nervous system. CASE DESCRIPTION: Here, we report a case of ONB in which emergency surgery was performed for intradural spinal metastasis (ISM). The patient was a 52-year-old male who underwent surgery for ONB. The tumor extended from the nasal cavity to the intracranial space and was resected completely...
2016: Surgical Neurology International
https://www.readbyqxmd.com/read/27621919/pseudo-foster-kennedy-syndrome-as-a-rare-presentation-of-vitamin-b12-deficiency
#13
Peyman Petramfar, Farideh Hosseinzadeh, S Saeed Mohammadi
INTRODUCTION: Pseudo-Foster Kennedy syndrome is a triad consisting of ipsilateral optic atrophy, contralateral optic disc edema, and ipsilateral anosmia in the absence of an intracranial mass. Vitamin B12 plays an important role in DNA synthesis, and its deficiency causes peripheral neuropathy, myeloneuropathy, and, very rarely, optic neuropathy. CASE PRESENTATION: In this study, we describe a 34-year-old male who presented with progressive loss of visual acuity and field...
June 2016: Iranian Red Crescent Medical Journal
https://www.readbyqxmd.com/read/27616149/reversal-of-congenital-hypogonadotropic-hypogonadism-in-a-man-with-kallmann-syndrome-due-to-sox10-mutation
#14
LETTER
Luigi Maione, Sylvie Brailly-Tabard, Jérôme Nevoux, Jérôme Bouligand, Jacques Young
No abstract text is available yet for this article.
December 2016: Clinical Endocrinology
https://www.readbyqxmd.com/read/27593773/late-postoperative-rhinological-complications-after-microscopic-transnasal-hypophysectomy
#15
Lütfi Postalci, İbrahim Erdim, Bülent Demirgil, Ömür Günaldi, Murad Asiltürk, Hakan Demirci, Hakan Kina, Uzay Erdoğan, Mine Yazici, Erhan Emel
AIM: Major complications from microscopic transnasal hypophyseal surgery (MTHS), such as cerebrospinal fluid rhinorrhea, carotid injury, and optic nerve injury, are very rare. However, late rhinological complications can be ignored because they are a minor cause of morbidity compared with major complications. In this study, we extensively examined postoperative rhinological complications in patients who underwent MTHS for pituitary adenoma. MATERIAL AND METHODS: Thirty-one patients diagnosed with pituitary adenoma, who underwent MTHS and whose preoperative nasal examinations were recorded between January 2007 and January 2014, were included in the study...
October 2, 2015: Turkish Neurosurgery
https://www.readbyqxmd.com/read/27577041/osmophobia-and-olfactory-functions-in-patients-with-migraine
#16
Gürkan Kayabaşoglu, Aytug Altundag, Dilcan Kotan, Denizhan Dizdar, Recep Kaymaz
Olfactory dysfunction and migraine has been associated for a long time. In this study, we planned to compare olfactory functions in patients with migraine and osmophobia with patients having migraine but no osmophobia, in addition with a normal control group using "Sniffin' Sticks" test. The main distinction of this study is that all qualitative and quantitative properties of olfactory functions; threshold, discrimination and identification, are evaluated separately and jointly. Thirty healthy person aged between 16 and 56 (18 women, 12 men) and 60 migraine patients aged between 15 and 54 (39 women, 21 man) were included in the study...
August 30, 2016: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/27566724/a-unifying-data-driven-model-of-human-olfactory-pathology-representing-known-etiologies-of-dysfunction
#17
Jörn Lötsch, Alfred Ultsch, Thomas Hummel
In the clinical diagnosis of olfactory function, 2 quantitative extremes of either lost or normal olfactory function are in the focus while no particular attention is directed at the interval between the 2 main diagnoses of "anosmia" or "normosmia", respectively. We analyzed the modal distribution of olfactory scores with the intention to describe a complex human olfactory pathology in a unifying model. In a cross-sectional retrospective study, olfactory performance scores acquired from 10714 individuals by means of a clinically established psychophysical test were analyzed with respect to their modal distribution by fitting a Gaussian mixture model (GMM) to the data...
August 26, 2016: Chemical Senses
https://www.readbyqxmd.com/read/27564536/delayed-activation-of-the-primary-orbitofrontal-cortex-in-post-traumatic-anosmia
#18
Vincent Kyu Lee, Raffaele Nardone, Fern Wasco, Ashok Panigrahy, Giulio Zuccoli
BACKGROUND: Functional magnetic resonance imaging may help in elucidating the pathophysiology of post-traumatic anosmia. METHOD: Using an fMRI olfactory stimulus paradigm, this study compared BOLD activation of the brain in a 21-year old male research subject with post-traumatic anosmia and a 19-year old male normal healthy control participant. OUTCOMES: A delayed activation of the primary orbitofrontal cortex was found in the subject with traumatic anosmia, which may represent a crucial pathophysiological mechanism in the subject with traumatic anosmia due to axonal injury or traumatic transection at the lamina cribrosa level...
August 26, 2016: Brain Injury: [BI]
https://www.readbyqxmd.com/read/27556251/patterns-of-olfactory-impairment-reflect-underlying-disease-etiology
#19
Katherine L Whitcroft, Mandy Cuevas, Antje Haehner, Thomas Hummel
OBJECTIVE: We aimed to determine whether the pattern of olfactory impairment seen in psychophysical testing reflects underlying disease etiology. STUDY DESIGN: Retrospective cohort. METHODS: We performed a retrospective analysis of 1,226 patients from our tertiary referral center. Only hyposmic patients with the following conditions were included: postinfectious hyposmia, posttraumatic hyposmia, hyposmia secondary to sinonasal disease, and hyposmia secondary to Parkinson disease...
August 24, 2016: Laryngoscope
https://www.readbyqxmd.com/read/27554662/investigation-of-sinonasal-anatomy-via-low-dose-multidetector-ct-examination-in-chronic-rhinosinusitis-patients-with-higher-risk-for-perioperative-complications
#20
Marcin Fraczek, Maciej Guzinski, Monika Morawska-Kochman, Tomasz Krecicki
The aim of the study was to compare visualisation of the surgically relevant anatomical structures via low- and standard-dose multidetector CT protocol in patients with chronic rhinosinusitis (CRS) and higher risk for perioperative complications (i.e. presence of bronchial asthma, history of sinus surgery and advanced nasal polyposis). 135 adult CRS patients were divided randomly into standard-dose (120 kVp, 100 mAs) or low-dose CT groups (120 kVp, 45 mAs). The detectability of the vital anatomical structures (anterior ethmoid artery, optic nerve, cribriform plate and lamina papyracea) was scored using a five-point scale (from excellent to unacceptable) by a radiologist and sinus surgeon...
August 23, 2016: European Archives of Oto-rhino-laryngology
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