Search Results
Results 301 - 350 of 836
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del Genio G - - 2008
AIM: To determine the impact of total fundoplication on the spontaneous esophageal clearance, known as secondary peristalsis. BACKGROUND: Although there is general agreement that total fundoplication is not an obstacle to bolus swallowing (primary peristalsis), whether it is an obstacle to spontaneous esophageal clearance (secondary peristalsis) is still not clear. ...
Straszek S P - - 2007
The acute effects of pure inhaled glucan on respiratory inflammation remain inconclusive and not sufficiently examined with regards to the simultaneous interaction of glucan, endotoxin (lipopolysaccharide, LPS), and house dust in airway inflammation. This study aims at determining effects of simultaneous exposure to office dust and glucan on nasal and ...
Meneghetti Silvia Cristina SC Department of Plastic Surgery and the Division of Anesthesia, The Cleveland Clinic Foundation, Cleveland, Ohio 44195, - - 2007
This prospective study was undertaken to determine the safest means of supplemental oxygen delivery for patients undergoing facial cosmetic surgery under conscious sedation. Two common methods of oxygen delivery were used in 20 patients: (1) a nasal cannula and (2) a red rubber nasopharyngeal tube through which the cut ends ...
Bertone G - - 2007
We study the prospects for detecting weakly interacting massive particles (WIMPs) in a number of phenomenological scenarios, with a detector composed of a target simultaneously sensitive to both spin-dependent and spin-independent couplings, as is the case of COUPP (Chicagoland Observatory for Underground Particle Physics). First, we show that sensitivity to ...
Elsherif H S - - 2007
OBJECTIVE: To determine the relationship between nasal nitric oxide (nNO) concentration and its influence on olfactory function. SETTING: Tertiary otolaryngology care centre. PARTICIPANTS: Sixty-four patients suffering from chronic rhinosinusitis and 20 healthy subjects participated. STUDY DESIGN: Prospective study. OUTCOME MEASURES: The nNO concentration was measured by chemiluminescence and olfactory thresholds ...
Farrelly Matthew C - - 2007
We used scanner data on cigarette prices and sales collected from supermarkets across the United States from 1994 to 2004 to test the hypothesis that cigarette prices are positively correlated with sales of cigarettes with higher tar and nicotine content. During this period the average inflation-adjusted price for menthol cigarettes ...
Chen Gang - - 2007
Nicotine, the major addicting agent in tobacco and tobacco smoke, undergoes a complex metabolic pathway, with approximately 22% of nicotine urinary metabolites in the form of phase II N-glucuronidated compounds. Recent studies have shown that UGT2B10 is a major enzyme involved in the N-glucuronidation of several tobacco-specific nitrosamines. In the ...
Odamaki Toshitaka - - 2007
It has been reported that intake of yogurt or powder supplemented with the Bifidobacterium longum BB536 probiotic strain alleviated subjective symptoms and affected blood markers of allergy in individuals with Japanese cedar pollinosis (JCPsis) during the pollen seasons of 2004 and 2005, based on randomized, double-blind, placebo-controlled trials. Furthermore, the ...
Tan H K K - - 2007
An anatomic and endoscopic study of 48 cadaveric heads (96 sphenoid sinuses) was undertaken to describe the anatomy of the sphenoid sinus in Asians. Sellar type of sphenoid sinus is the most common, present in 53 out of 96 sides (55%). Forty-five of the 48 heads had a dominant sphenoid ...
Oh Byung-Mo - - 2007
To determine whether multiple sessions of electrical stimulation (ES) applied to neck muscles improve swallowing function and whether this improvement is accompanied by cortical reorganization in patients with dysphagia, before-after trials were performed on eight subjects. ES was applied for 1 hour, 5 days a week for 2 weeks. Swallowing ...
Todo-Bom A - - 2007
BACKGROUND: The prevalence of rhinitis is rapidly increasing in recent years and has become a major public health problem in developed countries. A new classification of allergic rhinitis has been proposed by the allergic rhinitis and its impact on asthma group. In this study we aimed to evaluate the prevalence ...
Plange N - - 2009
PURPOSE: Previous studies have shown decreased retrobulbar blood flow in normal tension glaucoma (NTG) compared to healthy controls. This study evaluates the ability of colour Doppler imaging (CDI) to identify patients with NTG. METHODS: Sixty-two patients with untreated NTG (mean age 57+/-14 years) and 40 age-matched controls (mean age 58+/-9 ...
Gainey Louis F LF - - 2007
Pieces of gill isolated from the clam Mercenaria mercenaria clear colloidal graphite from seawater, and the clearance rates are measurable. 5-Hydroxytryptamine (5-HT) had a biphasic effect on clearance rates: concentrations from 10(-6) to 10(-5) mol l(-1) 5-HT increased clearance, but higher concentrations reduced it. During the summer, the gills were ...
Castano Roberto - - 2007
BACKGROUND: To diagnose occupational rhinitis, it is mandatory to conduct an objective assessment of changes in nasal patency during specific inhalation challenge (SIC). The reproducibility of acoustic rhinometry measurements in the setting of occupational challenges has never been examined. This study assessed the reproducibility of acoustic rhinometry during SIC investigation ...
Tikanto Jukka - - 2007
BACKGROUND: The nasal valve is the narrowest segment of the nasal cavity and plays an essential role in breathing. There has been plenty of discussion in the literature concerning the location and function of the nasal valve. The Cottle's maneuver (CM) is a test in which the cheek on the ...
Troche Michelle S - - 2008
Aspiration pneumonia is the leading cause of death in Parkinson's disease (PD) patients. In clinical practice, the videofluoroscopic examination (VFE) is the most common method for evaluation of swallowing disorders. One of the variables manipulated during the VFE is consistency of the bolus. The results of this examination greatly influence ...
Will Torsten - - 2007
Aphids, which constitute one of the most important groups of agricultural pests, ingest nutrients from sieve tubes, the photoassimilate transport conduits in plants. Aphids are able to successfully puncture sieve tubes with their piercing mouthparts (stylets) and ingest phloem sap without eliciting the sieve tubes' normal occlusion response to injury. ...
Corsico A G - - 2007
BACKGROUND: Chronic productive cough is a common clinical problem; often potential causes outside the lower respiratory tract are forgotten or ignored. The aim of this study was to make a precise etiopathogenetic diagnosis of chronic productive cough in young adults. METHODS: In a clinical setting, 212 subjects (mean age 41+/-5 ...
Kirmaz Cengiz - - 2007
BACKGROUND: Allergic rhinitis (AR) is an allergic inflammatory disease in which allergen exposure leads to the appearance of symptoms in sensitized individuals because of histamine liberation from nasal mucosal mast cells. Comorbidity of this disease with allergic asthma is common. Therefore, the one airway one disease theory has been put ...
Micheletto C - - 2007
Aspirin induced asthma (AIA) is a syndrome characterised by intolerance to acetylsalycilic acid (ASA), nasal polyps and bronchial asthma, being the metabolic shift of arachidonic acid toward the lipoxygenase pathway and hyper-production of cysteinyl-leukotrienes (cys-LTs) the current pathogenetic hypothesis. The research for both sensitive indicators and safe diagnostic tests is ...
Gulvady Chaitanya - - 2007
The present cross-sectional and interventional study was carried out to assess the incidence of vitamin B12 / vitamin D deficiency in male office executives in the tropical city of Mumbai, India. A total of 75 senior executives were surveyed and subjected to analysis of blood levels of vitamin D (25 ...
Wüstenberg Eike Gunther - - 2007
OBJECTIVE: To investigate whether there is a correlation between active anterior rhinomanometry (RMM) and optical rhinometry (ORM) data in the detection of changes in nasal congestion. DESIGN: In 70 subjects both ORM and RMM were performed. Changes in nasal congestion were induced by nasal provocation with histamine, allergens, solvent, and ...
Kotlyar Michael - - 2007
To compare nicotine pharmacokinetics and subjective effects of three new smokeless tobacco potential reduced exposure products (PREPs; Ariva, Revel and Stonewall) with moist snuff (Copenhagen) and medicinal nicotine (Commit lozenge). 10 subjects completed a randomised, within-subject, crossover study. Subjects used one product for 30 min at each of the five ...
Lankinen A - - 2007
We tested two predictions of the hypothesis that competition between self-pollen may mitigate negative genetic effects of inbreeding in plants: (1) intense competition among self-pollen increases offspring fitness; and (2) pollen competition reduces the measured strength of inbreeding depression. We used Collinsia heterophylla (Plantaginaceae), an annual with a mixed mating ...
Robbins JoAnne - - 2007
OBJECTIVE: To examine the effects of lingual exercise on swallowing recovery poststroke. DESIGN: Prospective cohort intervention study, with 4- and 8-week follow-ups. SETTING: Dysphagia clinic, tertiary care center. PARTICIPANTS: Ten stroke patients (n=6, acute: < or =3mo poststroke; n=4, chronic: >3mo poststroke), age 51 to 90 years (mean, 69.7y). INTERVENTION: ...
Heckmann Marc - - 2007
BACKGROUND: The axilla is particularly associated with body odor and putative pheromone production in humans. Although botulinum toxin type A (BT-A) is injected increasingly into the axillary skin to stop excessive sweating, its potential to control body odor is largely unexplored. OBJECTIVE: The objective was to measure the impact of ...
Vanden Broucke Hilde - - 2007
PURPOSE: There is a need for objective and validated measurements of ejaculation latency time and penile sensitivity in men with normal sexual function. We determined 1) the normal range and repeatability of ELT in a laboratory vs at home masturbation and intercourse in normal men, 2) the threshold and repeatability ...
Jaschinski Wolfgang - - 2007
Dark vergence is a resting position of vergence, measured in a dark visual field to eliminate fusional, accommodative, and proximal stimuli. Dark vergence differs among subjects: the average subject converges to a viewing distance of about 1 m, while the inter-individual range is from infinity to about 40 cm. This ...
Foo Mow Yee - - 2007
While numerous devices, formulations, and spray characteristics have been shown to influence nasal deposition efficiency, few studies have attempted to identify which of these interacting factors plays the greatest role in nasal spray deposition. The deposition patterns of solutions with a wide range of surface tensions and viscosities were measured ...
Serrano C - - 2007
Vasoconstrictor drugs reduce nitric oxide (NO) production in vitro by inhibiting the enzyme involved in the regulation of inducible and constitutive NO synthases (iNOS and cNOS). Intranasal vasoconstrictors also decrease nasal NO concentration in vivo. It is as yet unclear if this last finding is due to the effects of ...
Jobin Vincent - - 2007
The objective of this study was to determine whether impaired upper airway (UA) mucosal sensation contributes to altered swallowing function in obstructive sleep apnea (OSA). We determined UA two-point discrimination threshold (2PDT) and vibratory sensation threshold (VST) in 15 men with untreated OSA and 9 nonapneic controls (CL). We then ...
Willing Stephanie - - 2007
Subjective nasal obstruction is common among users of continuous positive airway pressure (CPAP). The aim of this study was to measure the acute effect of CPAP on nasal resistance and nasal symptoms in awake normal subjects. Twenty-four healthy CPAP-naive adults [8 men, 16 women; mean age 30 yr (SD 14)] ...
Jennings Jori Johnson - - 2008
This study addresses two questions: (1) How much nasality is present in classical Western singing? (2) What are the effects of frequency range, vowel, dynamic level, and gender on nasality in amateur and classically trained singers? The Nasometer II 6400 by KayPENTAX (Lincoln Park, NJ) was used to obtain nasalance ...
Sawyer Keegan - - 2007
The nose may help protect the lower respiratory tract from the effects of ambient ozone by scrubbing ozone from inspired air. Reductions in both nasal resistance and nitric oxide production with exercise may influence the efficiency of ozone uptake in the nose. Nasal ozone uptake was measured in 10 healthy ...
Randhawa Kanwaldeep - - 2006
Cigarette smoke contains irritants and vasoactive substances. We wanted to determine the effect of smoking a cigarette and of nasally or orally inhaled nicotine on airway blood flow (Q(aw)) and airflow in smokers. In ten healthy current smokers, Q(aw), FEV(1), and FEF(25-75) were measured before and at 5, 30, and ...
Privitera Gregory J - - 2006
In Experiment 1, a potentiation paradigm was used to test the relative influence of odor and taste with two 2 basic tastants (i.e., salt and sweet) in conditioned aversion learning. Experiment 1 showed that aversions to tastants (salt or sweet presented in a manner by which it could be tasted) ...
Agu Remigius U - - 2006
The aim of this study was to investigate the intranasal absorption of R-(+)-WIN 55,212-2 mesylate in vivo and in vitro. Permeation experiments of R-(+)-WIN 55,212-2 formulations with 2% dimethyl-beta-cyclodextrin (DMbetaCD), 2% trimethyl-beta-cyclodextrin (TMbetaCD) or 2% randomly methylated-beta-cyclodextrin (RAMbetaCD) in 1:1 propylene glycol/saline and 1.5% propylene glycol +3% Tween 80 in ...
Leow L P - - 2007
Prior research has documented a modulating effect of taste on swallowing. We hypothesized that presentation of tastant stimuli would be a significant variable in swallowing-respiratory coordination, duration of oral bolus preparation, and submental muscle contraction. Twenty-three healthy females were presented with 1-cm(3) gelatin samples flavored with 4 tastants of increasing ...
Cohen Noam A - - 2006
Although much has been elucidated in the past 170 years concerning the precise mechanism of ciliary function in the healthy or diseased human respiratory system, significant questions remain. The first description of ciliary action is credited to Sharpey in 1835. However, the importance of mucosal function was not apparent until ...
Lal Devyani - - 2006
BACKGROUND: Acoustic rhinometry has been used to assess nasal patency and to calculate nasal cavity volume. This study used acoustic rhinometry to assess changes in nasal patency after alterations in posture, unilateral mechanical obstruction, temperature, and humidity. METHODS: Eight healthy adult volunteer subjects underwent acoustic rhinometry during the following conditions: ...
Itier Roxane J - - 2006
The processing of upright, inverted and contrast-reversed faces was investigated using MEG. Peak and global field power analyses revealed that the M100, M170 and M220 components were delayed for inverted and contrast-reversed compared to normal upright faces but no amplitude modulations were found. Source analyses using an event-related SAM beamformer ...
Rah Marjorie J - - 2006
PURPOSE: The aim of this study was to determine the reproducibility of measurements made using the Sonogage Corneo-Gage Plus 2 (Cleveland, Ohio) ultrasound pachymeter of total corneal and corneal epithelial thickness in 5 different regions of the cornea. METHODS: Twenty-seven subjects at the New England College of Optometry (NECO) and ...
Diaz-Sanchez David - - 2006
BACKGROUND: Despite widespread perceptions that environmental tobacco smoke (ETS) is a potent risk factor for allergic airway disease, epidemiologic studies studying this have been equivocal. There is a clear need for experimental studies to address these questions. OBJECTIVE: We directly tested the hypothesis that ETS could interact with allergen in ...
Devriese Stephan - - 2006
Reported somatic symptoms without clear relation to physiological processes are studied. A learning paradigm was used with two odors (CSs) and the inhalation of CO(2)-enriched air (US), while measuring symptom levels and respiratory behavior. After paring one odor with the CO(2)-enriched air and the other odor with air, half of ...
Degner Daniel Alvin - - 2006
Surgery of the nasal cavity may be exposed primarily via a dorsal or ventral approach. Surgical treatment of lesions of the nasal cavity usually is limited to benign lesions or in combination with adjunctive therapy such as radiation therapy. Caution must be exercised with a dorsal approach to the nasal ...
Fischer E - - 2006
The pollination of Passiflora coccinea by the hummingbird Phaethornis superciliosus was studied in Central Amazon, Brazil. We hypothesized that a greater nectar secretion rate (NSR) increases the pollination success of single flowers through Ph. superciliosus visiting behavior. For control flowers, NSR was an increasing function of flower base diameter (FBD). ...
Chen Bei - - 2006
BACKGROUND: Although multiple etiologies contribute to the development of rhinosinusitis, a common pathophysiological sequelae is ineffective sinonasal mucociliary clearance, resulting in stasis of sinonasal secretions, with subsequent infection, and persistent inflammation. The respiratory cilia beat continually at a basal rate, while during times of stress, such as exercise or infection, ...
Fonseca Marconi T - - 2006
BACKGROUND: The nasal structures generate airflow resistance that can reach -50% of the total respiratory resistance. There are a series of factors that can alter the volume of these structures, among them physical exercise. The objective of this study was to determine the degree of changes in nasal volume at ...
Ferrer Angel - - 2006
BACKGROUND: The development of sensitization and symptoms after the inhalation of epithelial allergens is common. OBJECTIVES: To investigate the allergic response (in vivo and in vitro) of 3 individuals clinically sensitive and occupationally exposed to cow and goat and to evaluate the allergenic cross-reactivity between cow and goat epithelium extracts. ...
Tahamiler Rauf R Otorhinolaryngology Department, Cerrahpasa Medical Faculty, Istanbul University, Istanbul, Turkey. - - 2006
To evaluate the practicability of Odiosoft-Rhino (OR), a new experimental method for assessing the nasal airflow and resistance, in normal subjects and to compare the results with acoustic rhinometry (AR) findings. OR and AR were carried out in 72 healthy subjects. Their visual analogue scales of nasal obstruction, minimal cross ...
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