Determination of substance P in human nasal lavage fluid

Neuropeptides ◽  
1996 ◽  
Vol 30 (2) ◽  
pp. 117-124 ◽  
Author(s):  
K-D Schultz ◽  
J Furkert ◽  
A O'Connor ◽  
M Böttcher ◽  
M Schmidt ◽  
...  
Keyword(s):  
Substance P ◽  
Lavage Fluid ◽  
Nasal Lavage ◽  
Nasal Lavage Fluid

scholarly journals Substance P and Hemokinin 1 in Nasal Lavage Fluid of Patients with Chronic Sinusitis and Nasal Polyposis

OTO Open ◽  
2019 ◽  
Vol 3 (3) ◽  
pp. 2473974X1987507
Author(s):  
Ashley Lonergan ◽  
Theoharis Theoharides ◽  
Eirini Tsilioni ◽  
Elie Rebeiz
Keyword(s):  
Substance P ◽  
Chronic Rhinosinusitis ◽  
Nasal Polyps ◽  
Nasal Polyposis ◽  
Medical Center ◽  
Disease Process ◽  
Lavage Fluid ◽  
Nasal Lavage ◽  
Enzyme Linked Immunosorbent Assay ◽  
Nasal Lavage Fluid

This pilot study was undertaken to isolate and quantify substance P (SP) and hemokinin 1 (HK-1) in the nasal lavage fluid of patients with chronic rhinosinusitis with nasal polyps to better elucidate the pathophysiology underlying this inflammatory process, which remains poorly understood. Mucus samples were collected from this introductory cohort of 10 patients diagnosed with chronic rhinosinusitis with nasal polyps at Tufts Medical Center (Boston, Massachusetts). Relative levels of SP and HK-1 were measured with enzyme-linked immunosorbent assay methods. Both inflammatory neuropeptides were found in detectable and comparable amounts in patient samples and in concentrations up to 100-fold those established in past literature. The presence of SP and HK-1 necessitates further investigation into their role in nasal polyposis and the potentiation of the chronic inflammation inherent to chronic rhinosinusitis. Downregulating these peptides could therefore provide novel treatment targets to manage this disease process.

Measurement of secretion in nasal lavage

1987 ◽  
Vol 73 (2) ◽  
pp. 217-222 ◽  
Author(s):  
Hans Bisgaard ◽  
Ole W. Krogsgaard ◽  
Niels Mygind
Keyword(s):  
Quantitative Measure ◽  
Lavage Fluid ◽  
Nasal Secretion ◽  
Nasal Lavage ◽  
Quick Method ◽  
Accuracy Of Measurements ◽  
Nasal Secretions ◽  
Repeated Use ◽  
Nasal Lavage Fluid

1. The amount of admixture in nasal lavage fluids was determined by addition of 99mTc labelled albumin, providing a correction factor for measurements of cellular material and humoral substances in nasal lavage return as well as a quantitative measure of nasal secretions. 2. Albumin was chosen as marker molecule, since only negligible amounts were absorbed or adsorbed to the mucosa during the nasal lavage. 3. Labelling of the albumin with 99mTc ensured an accuracy of measurements only limited by the precision of the weighing. The isotope allowed for the determination of the amount of admixed secretion to be carried out on the whole sample of lavage fluid, thereby avoiding the necessity of complete admixture between marker and lavage fluid which would be pertinent to marker molecules measured chemically. The radiation from a nasal lavage is minimal and the procedure is fully acceptable for repeated use in humans. 4. The nasal lavage technique adopted allowed the return of 99.2% (median value) of the instilled volume. The area irrigated was visualized on a gamma-camera, and was demonstrated to cover an area larger than the area reached by challenge from a pumpspray, i.e. a large part of the nose, yet not the oropharynx. 5. A dose related increase in nasal secretion harvested by the nasal lavage in 10 persons challenged with histamine chloride could be demonstrated by this technique. 6. It is concluded that the use of 99mTc-albumin in a nasal washing provides a safe, simple and quick method for determination of the admixed nasal secretion with a remarkable degree of accuracy. The method is therefore suggested to improve determinations of admixture in nasal lavage fluid.

scholarly journals Determination of low-molecular-mass antioxidant concentrations in human respiratory tract lining fluids

1999 ◽  
Vol 276 (2) ◽  
pp. L289-L296 ◽  
Author(s):  
Albert van der Vliet ◽  
Charles A. O’Neill ◽  
Carroll E. Cross ◽  
John M. Koostra ◽  
William G. Volz ◽  
...  
Keyword(s):  
Respiratory Tract ◽  
Molecular Mass ◽  
Accurate Determination ◽  
Lavage Fluid ◽  
Nasal Lavage ◽  
Human Respiratory Tract ◽  
Lung Epithelial ◽  
Nasal Lavage Fluid ◽  
Initial Line

Antioxidants present within lung epithelial lining fluids (ELFs) constitute an initial line of defense against inhaled environmental oxidants such as ozone, nitrogen oxides, and tobacco smoke, but the antioxidant composition of human ELFs is still incompletely characterized. We analyzed ELF concentrations of the low-molecular-mass antioxidants ascorbate, urate, glutathione (GSH), and α-tocopherol by obtaining bronchoalveolar lavage (BAL) and nasal lavage fluids from healthy nonsmoking volunteers and compared two different BAL procedures. ELF dilution by the lavage procedures was estimated by measurement of urea in recovered BAL fluids in comparison with those in blood plasma from the same subjects. The results indicated that a recently developed single-cycle BAL procedure minimizes influx of non-ELF urea into the instilled fluid and thus allows for a more accurate determination of ELF antioxidant concentrations. Using this procedure, we determined that bronchoalveolar ELF contains 40 ± 18 (SD) μM ascorbate, 207 ± 167 μM urate, 109 ± 64 μM GSH, and 0.7 ± 0.3 μM α-tocopherol ( n = 12 subjects). Similar analysis of nasal lavage fluid yielded nasal ELF levels of 28 ± 19 μM ascorbate and 225 ± 105 μM urate ( n = 12 subjects), whereas GSH was undetectable (<0.5 μM). Our results demonstrate that ascorbate and urate are major low-molecular-mass ELF antioxidants in both the upper and lower respiratory tract, whereas GSH is present at significant concentrations only in bronchoalveolar ELF.

scholarly journals The Immuno-Modulatory Activities of Pentaherbs Formula on Ovalbumin-Induced Allergic Rhinitis Mice via the Activation of Th1 and Treg Cells and Inhibition of Th2 and Th17 Cells

Molecules ◽  
2021 ◽  
Vol 27 (1) ◽  
pp. 239
Author(s):  
Peiting Li ◽  
Miranda Sin-Man Tsang ◽  
Lea Ling-Yu Kan ◽  
Tianheng Hou ◽  
Sharon Sze-Man Hon ◽  
...  
Keyword(s):  
Allergic Rhinitis ◽  
T Cell ◽  
Inflammatory Mediators ◽  
Th17 Cells ◽  
Lavage Fluid ◽  
Nasal Lavage ◽  
Nasal Epithelium ◽  
Tnf Α ◽  
Nasal Lavage Fluid ◽  
Sinonasal Mucosa

Allergic rhinitis (AR) is a highly prevalent allergic disease induced by immunoglobulin (Ig) E-mediated hypersensitivity reaction at the nasal epithelium against inhaled allergens. Previous studies have demonstrated that Pentaherbs formula (PHF), a modified herbal formula comprising five herbal medicines (Flos Lonicerae, Herba Menthae, Cortex Phellodendri, Cortex Moutan and Rhizoma Atractylodis), could suppress various immune effector cells to exert anti-inflammatory and anti-allergic effects in allergic asthma and atopic dermatitis. The present study aimed to further determine the anti-inflammatory activities of PHF in an ovalbumin (OVA)-induced AR BALB/c mouse model. Nasal symptoms such as sneezing and nose rubbing were recorded and the serum total IgE and OVA-specific IgG1, as well as interleukin (IL)-4, IL-5, IL-10, IL-13, chemokines CXCL9 CXCL10, and tumor necrosis factor (TNF)-α concentrations in nasal lavage fluid (NALF) were measured during different treatments. Effects of PHF on the expression of inflammatory mediators in the sinonasal mucosa were quantified using real-time QPCR. PHF was found to suppress allergic symptoms, infiltration of inflammatory cells, and hyperplasia of goblet cells in the nasal epithelium of the OVA-induced AR mice. PHF could reduce OVA-specific IgG1 level in serum, and TNF-α and IL-10 in nasal lavage fluid (NALF), significantly up-regulate the splenic regulatory T (Treg) cell level, increase the Type 1 helper T cell (Th1)/Type 2 helper T cell (Th2) ratio, and reduce the Th17 cells (all p < 0.05). PHF could also alleviate in situ inflammation in sinonasal mucosa of OVA-induced AR mice. In conclusion, oral treatment of PHF showed immuno-modulatory activities in the OVA-induced AR mice by regulating the splenic T cell population to suppress the nasal allergy symptoms and modulating inflammatory mediators, implicating that PHF could be a therapeutic strategy for allergic rhinitis.

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