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Anosmia

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https://www.readbyqxmd.com/read/29248774/presenting-symptoms-and-prognostic-factors-for-symptomatic-outcomes-following-resection-of-meningioma
#1
Ashley Wu, Michael A Garcia, Stephen T Magill, William Chen, Harish N Vasudevan, Arie Perry, Philip V Theodosopoulos, Michael W McDermott, Steve E Braunstein, David R Raleigh
BACKGROUND: Meningioma is the most common primary intracranial tumor and patients present with diverse neurologic symptoms related to meningioma location. OBJECTIVE: To systematically quantify the presenting symptoms of meningioma and identify prognostic factors for symptomatic outcome following resection. METHODS: Two-hundred eighty-three patients who underwent resection of 313 meningiomas at a single institution were retrospectively identified, including 161 WHO grade I (52...
December 14, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/29243256/the-effectiveness-of-platelet-rich-plasma-in-an-anosmia-induced-mice-model
#2
Ahmet Gorkem Yasak, Ozgur Yigit, Ela Araz Server, Sevgi Durna Dastan, Mehmet Gul
OBJECTIVE: In this study, we aimed to functionally and morphologically demonstrate the effectiveness of platelet-rich plasma (PRP) on anosmia in a mouse model of anosmia. STUDY DESIGN: Animal study. METHODS: A total of 16 male mice were included. When selecting the mice, the food-finding test (FFT) was used to make sure that the animals could smell, and anosmia was induced by administration of intraperitoneal 3-methylindole. The mice were randomly divided into two groups of eight (groups A and B)...
December 15, 2017: Laryngoscope
https://www.readbyqxmd.com/read/29228382/long-term-neurological-and-radiological-results-of-consecutive-63-unruptured-anterior-communicating-artery-aneurysms-clipped-via-lateral-supraorbital-keyhole-minicraniotomy
#3
Kentaro Mori, Kojiro Wada, Naoki Otani, Arata Tomiyama, Terushige Toyooka, Satoshi Tomura, Satoru Takeuchi, Takuji Yamamoto, Yasuaki Nakao, Hajime Arai
BACKGROUND: Treatments for unruptured anterior communicating artery (AcomA) aneurysm have relatively high morbidity. OBJECTIVE: To assess the lateral supraorbital keyhole approach for safe and complete clipping of unruptured AcomA aneurysm and evaluate the long-term clinical and radiological outcomes, including cognitive and depressive status. METHODS: A total of 63 patients (aged 41-79 yr, mean 64 yr) with relatively small AcomA aneurysms clipped via the lateral supraorbital approach were retrospectively analyzed among the 105 AcomA aneurysms treated by clipping from 2005 to 2014...
December 7, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/29211946/a-rare-anos1-variant-in-siblings-with-kallmann-syndrome-identified-by-whole-exome-sequencing
#4
D M Lopategui, A J Griswold, H Arora, R I Clavijo, M Tekin, R Ramasamy
Kallmann syndrome is a rare genetic condition causing congenital hypogonadotropic hypogonadism. It presents with delayed puberty, anosmia, and infertility. Here, we set out to identify a causative DNA variant for Kallmann syndrome in two affected brothers of Hispanic ancestry. The male siblings presented with a clinical diagnosis of Kallmann syndrome (anosmia, delayed puberty, azoospermia, and undetectable luteinizing hormone and follicle stimulating hormone levels). Genetic variations were investigated by whole exome sequencing...
December 6, 2017: Andrology
https://www.readbyqxmd.com/read/29204574/variables-associated-with-olfactory-disorders-in-adults-a-u-s-population-based-analysis
#5
Julia Noel, Al-Rahim R Habib, Andrew Thamboo, Zara M Patel
Objective: Olfactory dysfunction is known to have significant social, psychological, and safety implications. Despite increasingly recognized prevalence, potential risk factors for olfactory loss have been arbitrarily documented and knowledge is limited in scale. The aim of this study is to identify potential demographic and exposure variables correlating with olfactory dysfunction. Methods: Cross-sectional analysis of the 2011-2012 and 2013-2014 editions of the National Health Examination and Nutrition Survey was performed...
March 2017: World Journal of Otorhinolaryngology—Head and Neck Surgery
https://www.readbyqxmd.com/read/29202173/dcc-ntn1-complex-mutations-in-patients-with-congenital-hypogonadotropic-hypogonadism-impair-gnrh-neuron-development
#6
Justine Bouilly, Andrea Messina, Georgios Papadakis, Daniele Cassatella, Cheng Xu, James S Acierno, Brooke Tata, Gerasimos Sykiotis, Sara Santini, Yisrael Sidis, Eglantine Elowe-Gruau, Franziska Phan-Hug, Michael Hauschild, Pierre-Marc Bouloux, Richard Quinton, Mariarosaria Lang-Muritano, Lucie Favre, Laura Marino, Paolo Giacobini, Andrew A Dwyer, Nicolas J Niederländer, Nelly Pitteloud
Congenital hypogonadotropic hypogonadism (CHH) is a rare genetic disease characterized by absent puberty and infertility due to GnRH deficiency, and is often associated with anosmia (Kallmann syndrome, KS). The genetic etiology of CHH is heterogeneous, and more than 30 genes have been implicated in approximately 50% of patients with CHH. We hypothesized that genes encoding axon-guidance proteins containing fibronectin type-III (FN3) domains (similar to ANOS1, the first gene associated with KS), are mutated in CHH...
November 30, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/29190215/can-oxygen-anosmia-extend-lifespan
#7
Rachel Abergel, Einav Gross
No abstract text is available yet for this article.
November 30, 2017: Aging
https://www.readbyqxmd.com/read/29188214/subfrontal-schwannoma-extended-broadly-to-nasal-cavity-treated-by-gamma-knife-radiosurgery-following-surgical-excision-a-case-report
#8
Soo Hee Kim, Jung Hwan Lee, Soon Ki Sung, Chang Hwa Choi
Subfrontal schwannomas are rarely reported. They are usually found only in the subfrontal area, but some extend to the nasal cavity. In these cases, prevention of postoperative cerebrospinal fluid (CSF) leakage through thinned or eroded anterior skull base is important. A 51-year-old female with anosmia and mild nausea was diagnosed as subfrontal extraaxial mass with nasal cavity extension. This mass was initially thought to be an olfactory groove meningioma. We performed a bifrontal craniotomy for surgical excision...
October 2017: Brain Tumor Research and Treatment
https://www.readbyqxmd.com/read/29178447/phenotype-and-genotype-analysis-of-a-french-cohort-of-119-patients-with-charge-syndrome
#9
Marine Legendre, Véronique Abadie, Tania Attié-Bitach, Nicole Philip, Tiffany Busa, Dominique Bonneau, Estelle Colin, Hélène Dollfus, Didier Lacombe, Annick Toutain, Sophie Blesson, Sophie Julia, Dominique Martin-Coignard, David Geneviève, Bruno Leheup, Sylvie Odent, Pierre-Simon Jouk, Sandra Mercier, Laurence Faivre, Catherine Vincent-Delorme, Christine Francannet, Sophie Naudion, Michèle Mathieu-Dramard, Marie-Ange Delrue, Alice Goldenberg, Delphine Héron, Philippe Parent, Renaud Touraine, Valérie Layet, Damien Sanlaville, Chloé Quélin, Sébastien Moutton, Mélanie Fradin, Aurélia Jacquette, Sabine Sigaudy, Lucile Pinson, Pierre Sarda, Anne-Marie Guerrot, Massimiliano Rossi, Alice Masurel-Paulet, Salima El Chehadeh, Xavier Piguel, Montserrat Rodriguez-Ballesteros, Stéphanie Ragot, Stanislas Lyonnet, Frédéric Bilan, Brigitte Gilbert-Dussardier
CHARGE syndrome (CS) is a genetic disorder whose first description included Coloboma, Heart disease, Atresia of choanae, Retarded growth and development, Genital hypoplasia, and Ear anomalies and deafness, most often caused by a genetic mutation in the CHD7 gene. Two features were then added: semicircular canal anomalies and arhinencephaly/olfactory bulb agenesis, with classification of typical, partial, or atypical forms on the basis of major and minor clinical criteria. The detection rate of a pathogenic variant in the CHD7 gene varies from 67% to 90%...
November 27, 2017: American Journal of Medical Genetics. Part C, Seminars in Medical Genetics
https://www.readbyqxmd.com/read/29166635/the-protean-neuropsychiatric-and-vestibuloauditory-manifestations-of-neurosarcoidosis
#10
Jacqueline J Greene, Ilka C Naumann, Janet M Poulik, Kevin T Nella, Lindsay Weberling, Jeffrey P Harris, Akihiro J Matsuoka
BACKGROUND: A rare subset of sarcoidosis, neurosarcoidosis, is reported to occur in 5-7% of sarcoid patients and can manifest in a variety of ways. The most common are facial paralysis and optic neuritis, less commonly causing cochleovestibulopathy, blindness, anosmia, and other cranial nerve (CN) palsies. The sensory deficit may be severe and psychiatric symptoms may result from the effects of the disease or steroid treatment. Although MRI-compatible cochlear implants are now available, concerns about the feasibility of recoverable hearing with cochlear implantation in these patients as well as the practical difficulty of disease monitoring due to implant artifact must be considered...
November 23, 2017: Audiology & Neuro-otology
https://www.readbyqxmd.com/read/29157487/contr%C3%A3-le-de-l%C3%A2-axe-gonadotrope-nouveaux-aspects-physiologiques-et-th%C3%A3-rapeutiques-control-of-the-gonadotrope-axis-new-physiologic-and-therapeutic-aspects
#11
L Maione, S Christin-Maître, P Chanson, J Young
The endocrine and exocrine functions of the gonads are controlled by the gonadotrope axis, whose master regulator is the hypothalamic decapeptide GnRH. The Kisspeptin/Neurokinin B (Kp/NkB) neuronendocrine system is the main physiologic regulator of GnRH neurons. The Kp/NkB system is currently considered the key mediator for the hypothalamic negative feedback exerted by sex steroids and prolactin, as well as by various metabolic signals. Intrinsic alterations or regulatory abnormalities of Kp/NkB system lead to various gonadotrope axis puberty and fertility dysfunctions...
October 2017: Annales D'endocrinologie
https://www.readbyqxmd.com/read/29152903/reproductive-endocrine-phenotypes-relating-to-chd7-mutations-in-humans
#12
REVIEW
Ravikumar Balasubramanian, William F Crowley
Mutations in the gene CHD7 cause CHARGE syndrome, a rare multi-organ syndromic disorder. Gonadal defects are common in individuals with CHARGE syndrome (seen in ∼60-80% of cases) and represent the letter "G" in the CHARGE syndrome acronym. The gonadal defect in CHARGE syndrome results from congenital deficiency of the hypothalamic hormone Gonadotropin-releasing hormone (GnRH), which manifests clinically as pubertal failure and infertility, and biochemically as hypogonadotropic hypogonadism (low sex steroid hormone levels with inappropriately normal or low gonadotropin levels)...
November 20, 2017: American Journal of Medical Genetics. Part C, Seminars in Medical Genetics
https://www.readbyqxmd.com/read/29134611/exploring-white-matter-microstructure-and-olfaction-dysfunction-in-early-parkinson-disease-diffusion-mri-reveals-new-insight
#13
Soheila Sobhani, Farzaneh Rahmani, Mohammad Hadi Aarabi, Alireza Vafaei Sadr
Olfaction dysfunction is considered as a robust marker of prodromal Parkinson disease (PD). Measurement of olfaction function as a screening test is unsatisfactory due to long lead time interval and low specificity for detection of PD. Use of imaging markers might yield more accurate predictive values and provide bases for combined use of imaging and clinical markers for early PD. Diffusion MRI connectometry was conducted on 85 de novo PD patients in and 36 healthy controls to find: first, white matter tracts with significant difference in quantitative anisotropy between PD groups with various degrees of olfaction dysfunction and second, second fibers with correlation with University of Pennsylvania Smell Identification Test (UPSIT) score in each group using a multiple regression analysis considering age, sex, GDS and MoCA score...
November 13, 2017: Brain Imaging and Behavior
https://www.readbyqxmd.com/read/29126164/the-association-between-diabetes-and-olfactory-function-in-adults
#14
Jason Ying Kuen Chan, Esther García-Esquinas, Owen H Ko, Michael C F Tong, Sandra Y Lin
Diabetes is a significant chronic disease that in limited studies has been linked with olfactory dysfunction. We investigated the cross-sectional association between diabetes and olfactory dysfunction in 3,151 adults aged ≥40 years who participated in NHANES 2013-2014 with information on olfactory dysfunction and diabetes. Diabetes was defined from fasting serum glucose ≥126 mg/dl, oral glucose tolerance test ≥200 mg/dl, HbA1c levels ≥6.5%, physician-diagnosed diabetes, or current use of oral hypoglycemic agents and/or insulin...
November 8, 2017: Chemical Senses
https://www.readbyqxmd.com/read/29108899/kallmann-syndrome-phenotype-and-genotype-of-hypogonadotropic-hypogonadism
#15
M I Stamou, N A Georgopoulos
Isolated Gonadotropin-Releasing Hormone (GnRH) Deficiency (IGD) IGD is a genetically and clinically heterogeneous disorder. Mutations in many different genes are able to explain ~40% of the causes of IGD, with the rest of cases remaining genetically uncharacterized. While most mutations are inherited in X-linked, autosomal dominant, or autosomal recessive pattern, several IGD genes are shown to interact with each other in an oligogenic manner. In addition, while the genes involved in the pathogenesis of IGD act on either neurodevelopmental or neuroendocrine pathways, a subset of genes are involved in both pathways, acting as "overlap genes"...
November 3, 2017: Metabolism: Clinical and Experimental
https://www.readbyqxmd.com/read/29094889/chronic-rhinosinusitis
#16
REVIEW
Ahmad R Sedaghat
Chronic rhinosinusitis is an inflammatory disease of the paranasal sinuses that occurs in 1% to 5% of the U.S. POPULATION: It may significantly decrease quality of life. Chronic rhinosinusitis is defined by the presence of at least two out of four cardinal symptoms (i.e., facial pain/pressure, hyposmia/anosmia, nasal drainage, and nasal obstruction) for at least 12 consecutive weeks, in addition to objective evidence. Objective evidence of chronic rhinosinusitis may be obtained on physical examination (anterior rhinoscopy, endoscopy) or radiography, preferably from sinus computed tomography...
October 15, 2017: American Family Physician
https://www.readbyqxmd.com/read/29081417/change-in-odor-identification-impairment-is-associated-with-improvement-with%C3%A2-cholinesterase-inhibitor-treatment-in%C3%A2-mild-cognitive-impairment
#17
D P Devanand, Cody Lentz, Richard E Chunga, Adam Ciarleglio, Jennifer M Scodes, Howard Andrews, Peter W Schofield, Yaakov Stern, Edward D Huey, Karen Bell, Gregory H Pelton
BACKGROUND: Anticholinergic challenge can induce odor identification impairment that indicates Alzheimer's disease pathology. OBJECTIVE: To determine if decline in odor identification ability with anticholinergic challenge can predict improvement with donepezil, a cholinesterase inhibitor (ChEI), in patients with mild cognitive impairment (MCI). METHODS: At baseline, the University of Pennsylvania Smell identification Test (UPSIT) was administered before and after an anticholinergic atropine nasal spray challenge...
October 21, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/29075156/skull-base-trauma-clinical-considerations-in-evaluation-and-diagnosis-and-review-of-management-techniques-and-surgical-approaches
#18
REVIEW
Jacob S Feldman, Soroush Farnoosh, Robert M Kellman, Sherard A Tatum
Traumatic injuries to the skull base can involve critical neurovascular structures and present with symptoms and signs that must be recognized by physicians tasked with management of trauma patients. This article provides a review of skull base anatomy and outlines demographic features in skull base trauma. The manifestations of various skull base injuries, including CSF leaks, facial paralysis, anosmia, and cranial nerve injury, are discussed, as are appropriate diagnostic and radiographic testing in patients with such injuries...
November 2017: Seminars in Plastic Surgery
https://www.readbyqxmd.com/read/29046472/-surgical-treatment-of-a-giant-olfactory-groove-schwannoma-a-case-report
#19
Takashi Fujii, Naoki Otani, Kazuma Doi, Masataka Miyama, Yohei Otsuka, Takashi Matsumoto, Toru Yoshiura, Satoru Takeuchi, Satoshi Tomura, Arata Tomiyama, Terushige Toyooka, Kojiro Wada, Kentaro Mori
Schwannomas originating from the olfactory nerve are extremely rare because the olfactory nerve does not normally contain Schwann cells. We describe a case of a giant schwannoma of the olfactory groove. A 73-year-old woman presented with anosmia persisting for 10 months. Head computed tomography(CT)for head trauma at another hospital demonstrated a tumor lesion located in the left frontal lobe and paranasal sinus. She had never suffered epilepsy, and past medical history and family history identified no indicators...
October 2017: No Shinkei Geka. Neurological Surgery
https://www.readbyqxmd.com/read/29030055/the-heart-of-pd-lewy-body-diseases-as-neurocardiologic-disorders
#20
David S Goldstein, Yehonatan Sharabi
This review provides an update about cardiac sympathetic denervation in Lewy body diseases. The family of Lewy body diseases includes Parkinson's disease (PD), pure autonomic failure (PAF), and dementia with Lewy bodies (DLB). All three feature intra-neuronal cytoplasmic deposits of the protein, alpha-synuclein. Multiple system atrophy (MSA), the parkinsonian form of which can be difficult to distinguish from PD with orthostatic hypotension, involves glial cytoplasmic inclusions that contain alpha-synuclein...
October 10, 2017: Brain Research
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