Navigation Links
In asthma, it's not just what you smell, but what you think you smell
Date:7/22/2014

ght subjects were told that the odor had potential therapeutic properties, while nine were told that it potentially could cause mild respiratory problems.

During odor presentation, the subjects rated the odor's sensory properties, including intensity, irritancy, and annoyance. Measures of lung function and airway inflammation were collected before and immediately after exposure and again at two hours and 24 hours post-exposure.

Subjects' beliefs about the odor, specifically whether it was potentially harmful (asthma-triggering) or therapeutic, influenced both their psychological and physiological responses to odor exposure.

Individuals who were told that the odor was potentially harmful rated it as more irritating and annoying as compared to those who thought it might be therapeutic.

In addition, airway inflammation increased immediately following odor exposure in subjects who believed the odor might be harmful and remained elevated 24 hours later.

"Introducing a negative bias led to a rapid change in airway inflammation," said senior author Pamela Dalton, PhD, a cognitive psychologist at Monell. "What really surprised us was that this response lasted for over 24 hours. The increased inflammation during this period likely makes asthmatics more sensitive to other triggers."

There was no increase of inflammation when the odor was characterized as therapeutic, even in individuals who described themselves as sensitive to perfumes and other odors.

The findings suggest that some fragrance effects on asthma symptoms may be related to the expectation of harm as opposed to chemical properties of the odor.

"It's not just what you smell, but also what you think you smell," said Jan.

Looking forward, the researchers want to identify the biological mechanisms that connect expectations to airway inflammation. They also intend to explore whether a reverse phenomenon also exists. Dalton asks, "Ca
'/>"/>

Contact: Leslie Stein
stein@monell.org
267-519-4707
Monell Chemical Senses Center
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Rethinking the reef
2. Stanford researchers rethink natural habitat for wildlife
3. How coughs and sneezes float farther than you think
4. Thinking it through: Scientists seek to unlock mysteries of the brain
5. Climate engineering -- what do the public think?
6. Hoyos Labs, a Digital Infrastructure Security Company, Launches; Rethinks How We Authenticate and Secure Identity
7. Fund launched to seed new thinking in sustaining the future of health
8. Researchers call for rethinking efforts to prevent interplanetary contamination
9. Major rethink needed if chemical industry is to meet greenhouse gas targets
10. A way of thinking may enable battle but prevent war crimes
11. Study prompts rethink of how ovaries develop
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/31/2015)... Conn. , Jul. 31, 2015 NXT-ID, Inc. ... biometric authentication company focused on the growing mobile commerce ... that it has filed provisional patent 62/198989 for ... This invention highlights a method to advance crypto-currencies such ... by introducing a common, uniform way to manage all ...
(Date:7/27/2015)... July 27, 2015  Synaptics Inc. (NASDAQ: ... solutions, today announced that Huawei has selected the ... for its stylish smartwatch. Huawei chose the state-of-the-art ... low power and highly responsive human interface qualities ... designers also required a classic round watch face ...
(Date:7/23/2015)... -- Research and Markets ( http://www.researchandmarkets.com/research/rzzp3v/global_outlook_of ) has ... of the Biometrics Industry 2015 " report ... biometrics market is likely to witness significant growth ... the uptake of multiple technologies available. The year ... growth of biometrics in existing applications as well ...
Breaking Biology News(10 mins):NXT-ID Patents Electronic Crypto-Currency Management Technology 2NXT-ID Patents Electronic Crypto-Currency Management Technology 3NXT-ID Patents Electronic Crypto-Currency Management Technology 4Synaptics Touchscreen Solution Powers New Huawei Watch 2Synaptics Touchscreen Solution Powers New Huawei Watch 3Global Outlook of the Biometrics Industry 2015 2Global Outlook of the Biometrics Industry 2015 3
... (NIAID), part of the National Institutes of Health, has ... diagnostics and treatments for radiation exposure after a nuclear ... Bioshield Authority, legislation that enables NIAID within the Department ... rapid award process to help stimulate research on medical ...
... as in cancer research, the silver bullet theory always gets ... For geologists who study mass extinctions, the silver bullet ... asteroid is the prime suspect only in the most recent ... The cataclysm 65 million years ago wiped out the dinosaurs. ...
... LANSING, Mich. Michigan State University plant scientists have discovered ... respond to high temperatures. That may allow plant breeders to ... climates. The MSU researchers found that the gene bZIP28 ... a member of the mustard family used as a model ...
Cached Biology News:NIAID announces 25 new awards to develop radiation countermeasures 2NIAID announces 25 new awards to develop radiation countermeasures 3Extinction by asteroid a rarity 2MSU scientists find new gene that helps plants beat the heat 2
(Date:7/30/2015)... 30, 2015 AACC welcomed thousands of ... AACC Annual Meeting & Clinical Lab Expo in ... The meeting showcased revolutionary advancements in clinical testing ... healthcare providers to diagnose patients quickly and accurately ... As of Wednesday, July 29, ...
(Date:7/30/2015)... ... July 30, 2015 , ... ... Vieillard as Sales & Marketing Director. , With more than 25 years ... responsible for reinforcing Tronics’ business development activities worldwide. He brings to the company ...
(Date:7/30/2015)... Washington , July 30, 2015 ... Market, by Product (Software, Molecular Modeling, PB/PK, PKPD, Trial ... Discovery & Development, Preclinical, Clinical Trial), by End Users ... Biosimulation Market is expected to reach USD 2,107.99 million ... a CAGR of 15.29%. Browse more ...
(Date:7/30/2015)... Kan. , July 30, 2015   ... a pet therapeutics company focused on the licensing, ... companion animals, today announced that its strategic partner ... a dose confirmation study of AT-016, an adipose-derived ... for the treatment of osteoarthritis pain in dogs. ...
Breaking Biology Technology:Innovative Research on Cancer, Heart Disease, and Infectious Diseases Draws More than 17,500 Attendees to 2015 AACC Annual Meeting 2Innovative Research on Cancer, Heart Disease, and Infectious Diseases Draws More than 17,500 Attendees to 2015 AACC Annual Meeting 3Innovative Research on Cancer, Heart Disease, and Infectious Diseases Draws More than 17,500 Attendees to 2015 AACC Annual Meeting 4Tronics appoints Francois Vieillard as Sales and Marketing Director 2Biosimulation Market Worth 2,107.99 Million USD by 2020 2Biosimulation Market Worth 2,107.99 Million USD by 2020 3Biosimulation Market Worth 2,107.99 Million USD by 2020 4Aratana Therapeutics Announces Positive Pilot Field Study for AT-016 2Aratana Therapeutics Announces Positive Pilot Field Study for AT-016 3Aratana Therapeutics Announces Positive Pilot Field Study for AT-016 4Aratana Therapeutics Announces Positive Pilot Field Study for AT-016 5
... Tianyin,Pharmaceutical, Inc., (OTC Bulletin Board: VSCO), a manufacturer ... in Chengdu,China, today announced that Mr. Stewart Lor, ... a conference call to update shareholders on the ... will take place at 4:15 p.m. EST, on ...
... YORK, Feb. 7 In a speech to ... UBS Global Health Services Conference,at the New York ... former Wisconsin Governor Tommy Thompson, will propose that,prevention ... The 18th annual,conference brings together experts from throughout ...
... patients with gene variant drink less, ... makeup often,plays a role in determining the ... new evidence-based research also shows a correlation,between ... Investigators participating in the National Institute ...
Cached Biology Technology:Tianyin Pharmaceutical, Inc. to Host 2008 Second Quarter Earnings Conference Call on Thursday, February 14, 2008 at 4:15 p.m. EST 2U.S. Preventive Medicine National Policy Advisor Gov. Tommy Thompson to Propose Prevention is the Solution at UBS Global Health Services Conference 2DNA Predicts Reaction to Drug That Fights Alcohol Dependence 2
... Anti-Natural Killer Cell Receptor-P1, ... Immunogen: Hybridoma produced ... from BALB/c mice immunized (BALB/c ... (LAK) cells and mouse myeloma ...
... Yersinia pestis This antibody is ... Immunogen: Purified F1 ... vaccine strain EV76. Specificity: ... capsular antigen. There is no cross-reactivity ...
Rabbit polyclonal to ZFP200 ( Abpromise for all tested applications). Antigen: Synthetic peptide: CGKSFNHKTNLNKHER (Human) Entrez Gene ID: 7752 Swiss Protein ID: P98182...
Anti-human C3a/C3a des-Arg (neo-epitope), Clone 2991, Monoclonal Antibody...
Biology Products: