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https://www.readbyqxmd.com/read/27919469/dangerous-intoxication-after-oral-ingestion-of-poppers-alkyl-nitrites-two-case-reports
#1
Stéphanie Pain, François Chavant, Bernard Fauconneau, Jérémy Guenezan, Nicolas Marjanovic, Jean-Yves Lardeur, Bertrand Brunet, Marie-Christine Perault-Pochat
"Poppers" (alkyl nitrites) were made famous in the 1960s as a party drug and are still used today. They are highly volatile, sweet-smelling liquids commonly administered by inhalation. However, sometimes, they can be consumed by oral ingestion resulting in greater toxicity. They are used for their vasodilator effects but these volatile nitrites can also cause methemoglobinemia. Methemoglobinemia is a rare pathology that results from the oxidation of iron in the hemoglobin molecule. Oxidation of iron switches it from the ferrous to the ferric state and impedes the ability of hemoglobin to carry oxygen...
December 2, 2016: Thérapie
https://www.readbyqxmd.com/read/27916830/influence-of-fragrances-on-human-psychophysiological-activity-with-special-reference-to-human-electroencephalographic-response
#2
REVIEW
Kandhasamy Sowndhararajan, Songmun Kim
The influence of fragrances such as perfumes and room fresheners on the psychophysiological activities of humans has been known for a long time, and its significance is gradually increasing in the medicinal and cosmetic industries. A fragrance consists of volatile chemicals with a molecular weight of less than 300 Da that humans perceive through the olfactory system. In humans, about 300 active olfactory receptor genes are devoted to detecting thousands of different fragrance molecules through a large family of olfactory receptors of a diverse protein sequence...
November 29, 2016: Scientia Pharmaceutica
https://www.readbyqxmd.com/read/27916759/odour-as-a-determinant-of-persistent-symptoms-after-a-chemical-explosion-a-longitudinal-study
#3
Gro Tjalvin, Nils Magerøy, Magne Bråtveit, Stein Håkon Låstad Lygre, Bjørg Eli Hollund, Bente Elisabeth Moen
Foul-smelling environmental pollution was a major concern following a chemical workplace explosion. Malodorous pollution has previously been associated with aggravated physical and psychological health, and in persons affected by a trauma, an incidence-related odour can act as a traumatic reminder. Olfaction may even be of significance in the development and persistence of post-traumatic stress symptoms (PTSS). The present longitudinal study assessed whether perceived smell related to malodorous environmental pollution in the aftermath of the explosion was a determinant of subjective health complaints (SHC) and PTSS among gainfully employed adults, when the malodorous pollution was present, and after pollution clean-up...
December 2, 2016: Industrial Health
https://www.readbyqxmd.com/read/27911837/genomic-and-brain-expansion-provide-ants-with-refined-sense-of-smell
#4
Patrizia d'Ettorre
No abstract text is available yet for this article.
November 28, 2016: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/27908567/the-effect-of-topical-5-flurouracil-application-post-endoscopic-inferior-turbinoplasty
#5
Amjad F Nuseir, Mohammad Alsalem, Mouhamad Alzahr, Muthanna Ababneh, Ahmad I Alomari, Firas Alzoubi
RATIONALE AND OBJECTIVES: Adhesions are the most common complication after nasal surgery and revision. 5-Fluorouracil (5-FU) reduces various adhesions and epithelial growth related complications. The aim of this study was to evaluate the effects of 5-flurouracil application in the nasal cavity after a multi-procedure nasal surgery in term of complications frequency. MATERIALS AND METHODOLOGY: Institutional ethical approval was granted and a double-blinded prospective clinical trial was conducted to study the effect of 5-fu on post-operative complications...
November 23, 2016: American Journal of Otolaryngology
https://www.readbyqxmd.com/read/27902988/smell-and-taste-to-improve-nutrition-in-very-preterm-infants-a-randomized-controlled-pilot-trial
#6
Friederike Beker, Gillian Opie, Elizabeth Noble, Yannan Jiang, Frank H Bloomfield
BACKGROUND: The perception of smell and taste, though present early in development, is not routinely considered in the care of preterm infants. Smell and taste are known to increase gut motility, insulin secretion, and the release of appetite, digestive and metabolic hormones. OBJECTIVE: We aimed to investigate the effect of regular smell and taste on the time from birth to full enteral feeds, and the feasibility of the study protocol in very preterm infants. METHODS: In a randomized controlled trial, infants <29 weeks' postmenstrual age (PA) were assigned to receive either the smell and taste of milk before each feed or to have no exposure to the smell and taste of milk (control)...
December 1, 2016: Neonatology
https://www.readbyqxmd.com/read/27901398/discriminating-between-neuropathic-pain-and-sensory-hypersensitivity-using-the-chronic-pain-questions-cpq
#7
Karin S Coyne, Brooke M Currie, Sean Donevan, Joseph C Cappelleri, Rozelle Hegeman-Dingle, Lucy Abraham, Christine Thompson, Alesia Sadosky, Marina Brodsky
OBJECTIVE: The Chronic Pain Questions (CPQ) were developed for clinical use with the aim of supporting primary care physicians in the screening, assessment and monitoring of patients with chronic pain. The purpose of this study was to examine the ability of the CPQ to discriminate between patients with neuropathic pain (NeP) versus those with sensory hypersensitivity (SH). METHODS: Adult men and women with a diagnosis of a NeP or SH condition were recruited from 5 clinical sites across the United States...
November 30, 2016: Postgraduate Medicine
https://www.readbyqxmd.com/read/27896309/olfactory-stimulus-control-and-the-behavioral-pharmacology-of-remembering
#8
Mark Galizio
Behavior analytic approaches and techniques have much to offer to the study of remembering. There is currently great interest in the development of animal models of human memory processes in order to enhance understanding of the neurobiology of memory and treatment of dementia and related disorders. Because rodent models are so important in contemporary neuroscience and genetics, development of procedures to study various forms of memory in rodents is a point of emphasis. The sense of smell plays an important role in rodent behavior and use of olfactory stimuli has permitted demonstrations of complex forms of stimulus control that have also served as baselines for studying drug effects on remembering...
November 2016: Behav Anal (Wash D C)
https://www.readbyqxmd.com/read/27893197/importance-to-question-sinonasal-symptoms-and-to-perform-rhinoscopy-and-rhinomanometry-in-cystic-fibrosis-patients
#9
J M Bock, M Schien, C Fischer, L Naehrlich, M Kaeding, O Guntinas-Lichius, A Gerber, C Arnold, J G Mainz
OBJECTIVES: Cystic fibrosis (CF) patients almost regularly reveal sinonasal pathology. The purpose of this study was to assess association between objective and subjective measurements of sinonasal involvement comparing nasal airflow obtained by active anterior rhinomanometry (AAR), nasal endoscopic findings, and symptoms assessed with the Sino-Nasal Outcome Test-20 (SNOT-20). METHODS: Nasal cavities were explored by anterior rigid rhinoscopy and findings were compared to inspiratory nasal airflow measured by AAR to quantify nasal patency and subjective health-related quality of life in sinonasal disease obtained with the SNOT-20 questionnaire...
November 28, 2016: Pediatric Pulmonology
https://www.readbyqxmd.com/read/27891459/comparison-of-antibacterial-efficacy-of-turmeric-extract-morinda-citrifolia-and-3-sodium-hypochlorite-on-enterococcus-faecalis-an-in-vitro-study
#10
Bathula Vimala Chaitanya, Kusum Valli Somisetty, Abhinav Diwan, Shiraz Pasha, Nandaprasad Shetty, Yashwanth Reddy, Shankar Nadigar
INTRODUCTION: Sodium hypochlorite (NaOCl), the most commonly used irrigant, has many potential properties like its unique ability to dissolve pulp tissue, excellent antimicrobial activity, but has a cytotoxic effect when injected into periapical tissues. It is also known to produce allergic reactions, foul smell and taste, and potential for corrosion. Facultative organisms such as Enterococcus faecalis and aerobes like Staphylococcus aureus are considered to be the most resistant species and one of the possible causes of root canal treatment failure...
October 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/27881690/acceptability-of-outpatient-ready-to-use-food-based-protocols-in-hiv-infected-senegalese-children-and-adolescents-within-the-maggsen-cohort-study
#11
Cecile Cames, Marie Varloteaux, Ndeye Ngone Have, Alhadji Bassine Diom, Philippe Msellati, Ngagne Mbaye, Helene Mbodj, Haby Sy Signate, Aminata Diack
OBJECTIVES: To assess the acceptability of ready-to-use food (RUF)-based outpatient protocols in HIV-infected children and adolescents with severe acute malnutrition (SAM) and moderate acute malnutrition (MAM). METHODS: Plumpy Nut and Plumpy Sup were supplied every 2 weeks and prescribed by weight to SAM and MAM children, respectively. Forty-three children, 24 MAM and 19 SAM, were enrolled. Organoleptic appreciation, feeding modalities, and perceptions surrounding RUF were recorded at week 2...
November 22, 2016: Food and Nutrition Bulletin
https://www.readbyqxmd.com/read/27878761/genome-wide-association-analysis-of-the-sense-of-smell-in-u-s-older-adults-identification-of-novel-risk-loci-in-african-americans-and-european-americans
#12
Jing Dong, Annah Wyss, Jingyun Yang, T Ryan Price, Aude Nicolas, Michael Nalls, Greg Tranah, Nora Franceschini, Zongli Xu, Claudia Schulte, Alvaro Alonso, Steven R Cummings, Myriam Fornage, Dmitri Zaykin, Leping Li, Xuemei Huang, Stephen Kritchevsky, Yongmei Liu, Thomas Gasser, Robert S Wilson, Philip L De Jager, Andrew B Singleton, Jayant M Pinto, Tamara Harris, Thomas H Mosley, David A Bennett, Stephanie London, Lei Yu, Honglei Chen
The human sense of smell decreases with age, and a poor sense of smell are among the most important prodromal symptoms of several neurodegenerative diseases. Recent evidence further suggests a racial difference in the sense of smell among U.S. older adults. However, no genome-wide association study (GWAS) on the sense of smell has been conducted in African-Americans (AAs). We performed the first genome-wide meta-analysis of the sense of smell among 1979 AAs and 6582 European-Americans (EAs) from three U.S. aging cohorts...
November 23, 2016: Molecular Neurobiology
https://www.readbyqxmd.com/read/27877148/changes-in-mood-states-are-induced-by-smelling-familiar-and-exotic-fragrances
#13
Orly Sarid, Michele Zaccai
Familiar fragrances usually induce positive mood states and elicit favorable evaluation. Relaxation is also widely thought to improve mood state. Yet experimental evidence on the effect of two different stimuli, fragrance smelling and breathing relaxation, on mood state, and fragrance evaluation is lacking. This study aimed to test (1) the effect of two familiar fragrances, lavender and myrtle, and two exotic fragrances, bergamot and ravensara, on perceived mood states before and after relaxation, (2) the effect of relaxation on perceived mood states for each fragrance, and (3) the effect of relaxation on fragrance evaluation as defined by adjectives...
2016: Frontiers in Psychology
https://www.readbyqxmd.com/read/27874323/flotation-of-toxocara-canis-eggs-in-commercial-bleach-and-effects-of-bleach-treatment-times-on-larval-development-in-these-eggs
#14
Alexa C Rosypal, Alice Houk-Miles, Anne M Zajac, David S Lindsay
Toxocara canis is a common intestinal nematode of young dogs. Puppies contaminate the environment with large numbers of eggs that can embryonate and become infective in less than a month. Embryonated eggs are infectious for humans and other paratenic hosts. Most T. canis infections in humans are asymptomatic, however, migration of T. canis larvae in the eye and in the central nervous system can result in vision loss, blindness, and even death. The eggs of T. canis are highly resistant to harsh environmental conditions and routinely used chemical disinfectants...
November 22, 2016: Journal of Parasitology
https://www.readbyqxmd.com/read/27873345/the-prevalence-of-olfactory-dysfunction-in-chronic-rhinosinusitis
#15
REVIEW
Preeti Kohli, Akash N Naik, E Emily Harruff, Shaun A Nguyen, Rodney J Schlosser, Zachary M Soler
OBJECTIVES: Many studies have reported that olfactory dysfunction frequently occurs in chronic rhinosinusitis (CRS) populations; however, the prevalence and degree of olfactory loss has not been systematically studied. The aims of this study were to use combined data to report the prevalence of olfactory dysfunction and to calculate weighted averages of olfactory test scores in CRS patients. DATA SOURCES: A search was conducted in PubMed and Scopus, following the methods of Preferred Reporting Items for Systematic Review and Meta-Analysis guidelines...
November 22, 2016: Laryngoscope
https://www.readbyqxmd.com/read/27868477/association-between-olfaction-and-higher-cortical-functions-in-alzheimer-s-disease-mild-cognitive-impairment-and-healthy-older-adults
#16
Amanda M Ward, Matthew Calamia, Erin Thiemann, Jamie Dunlap, Daniel Tranel
INTRODUCTION: Neural regions important for smell are proximal and closely connected to cortical areas that have been strongly implicated in higher order functions of value-based decision making and emotional memory. The integrity of these neural regions are affected in aging and neurodegenerative conditions. Two specific predictions follow from these neuroanatomical arrangements-namely, that olfaction would be associated with value-based decision making and with emotional memory. METHOD: To test these predictions, we measured these different capacities in participants with presumed varying degrees of integrity of the relevant brain structures: specifically, 13 patients with Alzheimer's disease, 8 patients with mild cognitive impairment, and 20 healthy older adults...
November 20, 2016: Journal of Clinical and Experimental Neuropsychology
https://www.readbyqxmd.com/read/27867426/fragranced-consumer-products-exposures-and-effects-from-emissions
#17
Anne Steinemann
Fragranced consumer products, such as cleaning supplies, air fresheners, and personal care products, are a primary source of indoor air pollutants and personal exposure. Previous research indicates that fragranced products can trigger adverse health effects, with implications for workplaces and public places. This is the first study to examine the multiple dimensions of exposures related to fragranced products and effects in the US population. The study investigated the prevalence and types of fragranced product exposures, associated health effects, awareness of product emissions, and preferences for fragrance-free policies and environments...
2016: Air Quality, Atmosphere, & Health
https://www.readbyqxmd.com/read/27867383/environmental-toxicants-induced-immune-responses-in-the-olfactory-mucosa
#18
REVIEW
Fumiaki Imamura, Sanae Hasegawa-Ishii
Olfactory sensory neurons (OSNs) are the receptor cells for the sense of smell. Although cell bodies are located in the olfactory mucosa (OM) of the nasal cavity, OSN axons directly project to the olfactory bulb (OB) that is a component of the central nervous system (CNS). Because of this direct and short connection from this peripheral tissue to the CNS, the olfactory system has attracted attention as a port-of-entry for environmental toxicants that may cause neurological dysfunction. Selected viruses can enter the OB via the OM and directly affect the CNS...
2016: Frontiers in Immunology
https://www.readbyqxmd.com/read/27866858/clinical-variables-and-biomarkers-in-prediction-of-cognitive-impairment-in-patients-with-newly-diagnosed-parkinson-s-disease-a-cohort-study
#19
Anette Schrag, Uzma Faisal Siddiqui, Zacharias Anastasiou, Daniel Weintraub, Jonathan M Schott
BACKGROUND: Parkinson's disease is associated with an increased incidence of cognitive impairment and dementia. Predicting who is at risk of cognitive decline early in the disease course has implications for clinical prognosis and for stratification of participants in clinical trials. We assessed the use of clinical information and biomarkers as predictive factors for cognitive decline in patients with newly diagnosed Parkinson's disease. METHODS: The Parkinson's Progression Markers Initiative (PPMI) study is a cohort study in patients with newly diagnosed Parkinson's disease...
November 17, 2016: Lancet Neurology
https://www.readbyqxmd.com/read/27864672/rhinophototherapy-in-persistent-allergic-rhinitis
#20
Zsolt Bella, Ágnes Kiricsi, Éva Dósa-Rácz Viharosné, Attila Dallos, Ádám Perényi, Mária Kiss, Andrea Koreck, Lajos Kemény, József Jóri, László Rovó, Edit Kadocsa
Previous published results have revealed that Rhinolight(®) intranasal phototherapy is safe and effective in intermittent allergic rhinitis. The present objective was to assess whether phototherapy is also safe and effective in persistent allergic rhinitis. Thirty-four patients with persistent allergic rhinitis were randomized into two groups; twenty-five subjects completed the study. The Rhinolight(®) group was treated with a combination of UV-B, UV-A, and high-intensity visible light, while the placebo group received low-intensity visible white light intranasal phototherapy on a total of 13 occasions in 6 weeks...
November 18, 2016: European Archives of Oto-rhino-laryngology
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