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nasal mucosa

Lihua Li, Shaorong Zhang, Xunshuo Jiang, Yuehui Liu, Ke Liu, Chunping Yang
The present study aimed to explore the microRNA-let-7e (miR-let-7e) expression in allergic rhinitis (AR), and to investigate the underlying molecular mechanisms. miR-let-7e expression in the nasal mucosa of mice and patients with AR were detected. The expression levels of three inflammatory factors, including histamine, immunoglobulin E and tumor necrosis factor-α (TNF-α), in the blood of AR mice and in interleukin (IL)-13-stimulated nasal epithelial cells (NECs) were also measured. Furthermore, the target gene of miR-let-7e was predicted and validated using a luciferase reporter assay...
April 2018: Experimental and Therapeutic Medicine
Giuseppe Brescia, Daniela Parrino, Lorenzo Nicolè, Claudia Zanotti, Cristiano Lanza, Umberto Barion, Filippo Marino, Gino Marioni
PURPOSE: The term aspirin-exacerbated respiratory disease (AERD) refers to a combination of asthma, chronic rhinosinusitis with nasal polyposis (CRSwNP), and acute respiratory tract reactions to nonsteroidal anti-inflammatory drugs. AERD has now been included among the CRSwNP endotypes, and is considered one of the most aggressive in terms of disease recurrence. Cortactin is a multi-domain protein with a part in several cellular mechanisms involving actin assembly and cytoskeleton arrangement...
March 5, 2018: American Journal of Otolaryngology
Ha Kyun Kim, Hyun Jung Kim, Jae Hyung Kim, Tae Hoon Kim, Sang Hag Lee
Numerous peripheral tissues possess self-sustaining daily biologic rhythms that are regulated at the molecular level by clock genes such as PER1, PER2, CLOCK, and BMAL1. Physiological function of nasal mucosa exhibits rhythmic variability to a day-night environmental cycle. Nevertheless, little is known of the expression and distribution pattern of clock genes in nasal mucosa. The present study investigates the expression level and distribution pattern of PER1, PER2, CLOCK, and BMAL1 genes in nasal mucosa of healthy controls, allergic rhinitis patients, and normal rats...
2018: PloS One
Seung-Heon Shin, Mi-Kyung Ye, Sung-Yong Choi, Kwan-Kyu Park
Bee venom (BV) has long been used as anti-inflammatory agent in traditional oriental medicine; however, the effect of BV on chronic rhinosinusitis (CRS) is not commonly studied. The aim of the present study was to determine the anti-inflammatory effect of BV on an allergic CRS mouse model. An allergic CRS mouse model was established following the administration of ovalbumin with Staphylococcus aureus enterotoxin B (SEB) into the nose. A total of 0.5 or 5 ng/ml of BV were intranasally applied 3 times a week for 8 weeks...
March 9, 2018: Molecular Medicine Reports
Hiba Natsheh, Elka Touitou
The goal of this work was to investigate a new nasal carrier for enhanced drug delivery to brain, we call Phospholipid Magnesome. The system contains soft phospholipid vesicles, composed of phospholipid, water, propylene glycol, magnesium salt, and the mucoadhesive polymer, alginate. The carrier was characterized by various methods: electron microscopy, calorimetry, and dynamic light scattering. The ability of the carrier's vesicles to entrap various molecules was studied by CLSM and ultracentrifugation combined with HPLC quantification...
March 9, 2018: Drug Delivery and Translational Research
Thomas J W Klein Nulent, Matthijs H Valstar, Bart de Keizer, Stefan M Willems, Laura A Smit, Abrahim Al-Mamgani, Ludwig E Smeele, Robert J J van Es, Remco de Bree, Wouter V Vogel
OBJECTIVES: Prostate-specific membrane antigen (PSMA) positron emission tomography/computed tomography (PET/CT) is used for detection and (re)staging of prostate cancer. However, healthy salivary, seromucous, and lacrimal glands also have high PSMA-ligand uptake. This study aimed to describe physiologic PSMA-ligand uptake distribution characteristics in the head and neck to aid in PSMA PET/CT interpretation and to identify possible new clinical applications for PSMA-ligand imaging. STUDY DESIGN: Thirty consecutive patients who underwent PSMA PET/CT for prostate cancer were evaluated...
January 31, 2018: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
Manabu Zama, Yaeko Hara, Satoshi Fujita, Tadayoshi Kaneko, Masayuki Kobayashi
Nasal mucosa has roles in warming and humidifying inspired air and is highly sensitive to mechanical stimuli. Moreover, the upper part of the nasal mucosa expresses olfactory receptors processing olfactory information. Although the somatosensory map of the face in the primary (S1) and secondary (S2) somatosensory cortices is clearly documented, the map of the nasal mucosa and the effect of odors on their activities are largely unknown. This study aimed to identify the cortical regions in S1 and their temporal features in response to somatosensory stimulation of the nasal mucosa using an optical imaging technique in urethane-anesthetized rats...
March 5, 2018: Neuroscience
K Aanaes, M C Alanin, K G Nielsen, M Moller Jorgensen, C von Buchwald, N Hoiby, H K Johansen, H H Johannesen, J Mortensen
BACKGROUND: Nasal irrigations with antibiotics are used to eradicate Pseudomonas aeruginosa from the upper airways in patients with cystic fibrosis (CF) and thereby avoid lung colonisations; nevertheless, the efficacy is uncertain. METHODOLOGY: The aim of this study was to investigate the accessibility and durability of solutions in the sinuses before and after sinus surgery. The participants irrigated their noses with radioactively marked saline and were evaluated using a dynamic SPECT/CT scan...
March 6, 2018: Rhinology
Stefan Linsler, David Breuskin, Thomas Tschernig, Joachim Oertel
INTRODUCTION: The purpose of this study was to evaluate the effect of posterior septectomy size on surgical exposure and surgical freedom during the endoscopic transsphenoidal approach to the sellar and parasellar region. METHODS: A mononostril and binostril approach to the sellar region was performed on 4 formalin-fixed cadaveric heads. Predefined anatomical structures were identified. Additionally, a millimeter gauge was introduced into the surgical site and the extent of dorsal septectomy was analyzed for both approaches...
February 28, 2018: Annals of Anatomy, Anatomischer Anzeiger: Official Organ of the Anatomische Gesellschaft
Li-Hsiang Cheng, Pei-Chuan Wu, Yuan-Yung Lin, Yueng-Hsiang Chu, Hsing-Won Wang
OBJECTIVES: Sumatriptan (Imigran) is a potent and highly selective 5-HT1 receptor agonist often used in treating acute migraine. Intranasal sumatriptan is well absorbed and is generally effective in relieving headache. However, the effects of Imigran on human nasal mucosa have rarely been well explored. To verify the effect of Imigran, which act on human nasal mucosa directly in vitro. DESIGN AND PARTICIPANTS: We examined the effectiveness of Imigran on human nasal mucosa by testing: 1) effect on human nasal mucosa resting tension; 2) effect on contraction caused by 10-6 M methoxamine as a sympathetic mimetic; 3) effect of the drugs on electrically induced on human nasal mucosa contractions...
March 1, 2018: Clinical Otolaryngology
Alexey Ruzin, Yuling Wu, Li Yu, Xiang-Qing Yu, David E Tabor, Hoyin Mok, Christine Tkaczyk, Kathryn Jensen, Terramika Bellamy, Lorin Roskos, Mark T Esser, Hasan S Jafri
Objectives: MEDI4893 is a novel, long-acting human monoclonal antibody targeting Staphylococcus aureus (SA) alpha toxin (AT). This report presents the results of the exploratory analyses from a randomised phase 1 dose-escalation study in healthy human subjects receiving single intravenous MEDI4893 doses or placebo. Methods: Anti-AT antibodies and AT expression were measured as described previously. Nasal swabs were analysed by culture and PCR. Data were summarised by treatment groups and visits by using SAS System Version 9...
2018: Clinical & Translational Immunology
Michelle Ma, Jamie L Redes, Caroline M Percopo, Kirk M Druey, Helene F Rosenberg
BACKGROUND: Eosinophils in the nasal mucosa are an elemental feature of allergic rhinitis. OBJECTIVE: Our objective was to explore eosinophilic inflammation and its impact on respiratory virus infection at the nasal mucosa. METHODS: Inflammation in the nasal mucosae of mice was evaluated in response to repetitive stimulation with strict intranasal volumes of a filtrate of Alternaria alternata. Mice were then challenged with influenza virus...
February 23, 2018: Clinical and Experimental Allergy: Journal of the British Society for Allergy and Clinical Immunology
Chun Yuan Zhao, Wei Wang, Hong Chao Yao, Xin Wang
BACKGROUND: Suppressor of cytokine signaling 1 (SOCS1) and SOCS3 play important roles in T helper cell differentiation, which is involved with the pathologic mechanisms of allergic rhinitis (AR). The aim of this study was to evaluate the expression of SOCS1 and SOCS3 in AR and find their regulatory microRNAs (miRNAs) to provide a basis for the treatment of AR. METHODS: The expression of SOCS1 and SOCS3 were analyzed by real-time PCR, immunohistochemistry, and Western blot...
February 22, 2018: International Archives of Allergy and Immunology
Margaréta Tokodi, Eszter Csábi, Ágnes Kiricsi, Rebeka Schultz, Andor Molnár H, László Rovó, Zsolt Bella
Background and purpose: Allergy is an endemic disease and has a considerable impact on the quality of life. This study aimed to measure the effect of active allergic rhinitis on memory functions of physically active and inactive patients with ragweed allergy. Methods: Memory functions were assessed before and after allergen exposure. Participants in both groups were provoked nasally with 30 IR/mL ragweed allergen in each nostril. Explicit memory was measured with story-recalling and implicit memory was investigated with reaction time task...
January 30, 2018: Ideggyógyászati Szemle
Zaycev A Yu, Svetlov V A, Dubrovin K V, Khrustaleva M V, Dehtjar M A, Titova I V
BACKGROUND: Nasal bleeding is a common complication during nasotracheal intubation (NTI). This is due to the ana- tomical prerequisites and the hemostatic system failure. Using of various research methods in practice can reduce the frequency of such complications. The purpose of the study is to identify predictors of high probability of epistaxis associated with the NTI and the pecu- liarities of the anatomical mucous membrane structure of the nasal passages, and to assess significance of blood coag- ulationfailures in these cases...
September 2017: Anesteziologiia i Reanimatologiia
M S Begum, U K Sarker, M A Islam, M A Sangma, P Paul, M A Rahman
Sinonasal mass is the abnormal growth of tissue from nasal cavity and mucosa of the paranasal sinuses. The growth may be benign or malignant. The benign lesion grows slowly and does not metastasize. The malignant lesion grows rapidly and metastasizes early. The aim of this study is to evaluate and diagnose the various types of sinonasal masses with MRI and its correlation with histopathological findings. This cross sectional descriptive study was carried out for a period of 02 years, from July 2015 to June 2017...
January 2018: Mymensingh Medical Journal: MMJ
F Sireci, R Speciale, S Gallina, R Sorrentino, F R Canevari
The aim of this study is to evaluate the efficacy and safety of prolonged therapy with low-dose clarithromycin in patients with chronic rhinosinusitis with polyps (CRSwP) after endoscopic sinus surgery (ESS). A total of 10 patients with CRSwP were identified and subjected to bilateral ESS. In post-operative patients they were treated with nasal wash with saline solution and steroid sprays (beclomethasone). During follow-up, after 30-40 days after the operation (M = 35.4 SD = +4.33), patients reported a worsening of symptoms with onset of nasal obstruction; reduction/loss of smell; headache; onset of viscous secretions and therefore all patients continued therapy with saline nasal irrigation, topical steroid therapy and started macrolide (clarithromycin 500 mg/pill: 1 pill/day for 3 days a week for 1 month)...
March 2018: Indian Journal of Otolaryngology and Head and Neck Surgery
Yuanyuan Wang, Zong-Feng Wang, Zhili Zhang, Yi Su
The current study measured the expression of Clara cell 10-kDa protein (CC10) and trefoil factor family 1 (TFF1) in the sinus mucosa of patients exhibiting chronic rhinosinusitis (CRS) and nasal polyps (NP). CC10 and TFF1 expression in the sinus mucosa of the control group and patients with CRS and NP was determined using reverse transcription-quantitative polymerase chain reaction (RT-qPCR), western blotting and immunohistochemistry. The correlation between CC10 and TFF1 expression was further analyzed using Spearman's correlation analysis...
March 2018: Experimental and Therapeutic Medicine
Xiaohong Zhang, Tie Zhao, Tiebing Zeng, Ning Wu, Yongjian Xiao, Shuangquan Liu, Jian Yu, Chuanhao Jiang, Lin Gan, Meixia Deng, Xi Luo, Feijun Zhao
The present study aimed to evaluate the immune effect of intramuscular primary immunization by the nucleic acid vaccine pcDNA/glycerophosphodiester phosphodiesterase-interleukin-2 (pcDNA/Gpd-IL-2) and enhanced immunization 2 weeks later with the combination of mucosal adjuvant CpG-oligodeoxynucleotides (ODN) and Gpd-IL-2 recombinant protein on skin infection caused by Treponema pallidum (Tp) in New Zealand rabbits. At week 8 following immunization, MTT assay was used to detect spleen cell proliferation, while enzyme-linked immunosorbent assay was performed to detect the cytokine and secretory immunoglobulin A (SIgA) levels...
March 2018: Experimental and Therapeutic Medicine
I La Mantia, G Ciprandi, A Varricchio, F Cupido, C Andaloro
Postnasal drip (PND)-related cough is a very common symptom in patients with upper respiratory tract infections (URTIs). At present, there is not a standard treatment for postnasal drip and postnasal drip-related cough. The aim of this pilot study was to evaluate the efficacy of a specific salso-bromo-iodine thermal water containing hyaluronic acid and grapefruit seed extract (SBI-H-GSE) comparing it with a normal saline solution in children with URTIs who refer PND-related symptoms. The study was randomized, single-blind, and controlled...
January 2018: Journal of Biological Regulators and Homeostatic Agents
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