Navigation Links
Brain's Olfactory Bulb Grows With Sense of Smell
Date:6/19/2008

Finding could lead to better treatment when problems occur

THURSDAY, June 19 (HealthDay News) -- The olfactory bulb in the brain -- the brain's "smell center" -- may change in size as a person's sense of smell changes, a German study reports.

In this study, researchers at the University of Dresden Medical School studied 20 people with loss of sense of smell. At the start of the study, the patients underwent an assessment that included MRI of the brain and nasal endoscopy, an examination of the inside of the nose using a flexible instrument called an endoscope. Their ability to detect odors, discriminate between odors and identify particular odors was also tested. The full assessment was repeated 13 to 19 months later.

At the first assessment, seven of the 20 patients had no sense of smell (anosmia) and 13 had a reduced sense of smell (hyposmia). At the second assessment, six had anosmia and 14 had hyposmia, the study found.

In patients who initially had hyposmia, the volume of the olfactory bulb increased as the patients' sense of smell increased. But there was no correlation between the volume of the olfactory bulb and the ability to distinguish between or identify specific odors.

The study was published in the June issue of the journal Archives of Otolaryngology -- Head & Neck Surgery.

"The correlation between olfactory bulb volume and olfactory function may potentially be used in combination with other factors influencing olfaction such as remaining olfactory function, age and duration of olfactory loss as a means to provide patients with individual information on the prognosis of their disease," the study authors wrote.

"Hypothetically, a multifactorial approach could be applied to eventually come up with a formula that would allow a more precise prognosis of olfactory function. Especially since therapeutic options in patients with olfactory loss are limited, at present, this type of information is of high clinical significance."

More information

The U.S. National Institute on Deafness and Other Communication Disorders has more about smell disorders.



-- Robert Preidt



SOURCE: JAMA/Archives journals, news release, June 16, 2008


'/>"/>
Copyright©2008 ScoutNews,LLC.
All rights reserved

Related medicine news :

1. Gay Men, Straight Women Have Similar Brains
2. Cooling May Not Help Injured Brains in Children
3. New stem cell therapy may aid the repair of damaged brains
4. Sleep-Deprived Brains Show Lapse in Visual Processing
5. Analysis of alcoholics brains suggests treatment target
6. Yeast gives rise to new concept: cell fuel is brains behind division
7. AgeLab Director Brings Wisdom to Aging Brains
8. Are teenage brains really different?
9. Which came first, social dominance or big brains? Wasps may tell
10. Chicago neuroscientist contributes to book on brains and baseball
11. Aging Brains Get Out of Sync
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:12/2/2016)... Raleigh, NC (PRWEB) , ... December 02, 2016 , ... ... the Open Enrollment Period (or Annual Election Period), is ending December 7th. Currently-enrolled Medicare ... plan (Part C) or prescription drug plan (Part D) need to make changes during ...
(Date:12/2/2016)... (PRWEB) , ... December 02, 2016 , ... With the ... through rehabilitation of an injury, patients must find the one that works for them. ... pain, he created a machine that worked and decided to share it with others. ...
(Date:12/2/2016)... , ... December 02, 2016 , ... ... Beverly Hills, California, will be included in the 2016 “Guide to America’s Top ... professionals based on the amalgamation of their education, experience, and professional associations. ...
(Date:12/2/2016)... , ... December 02, 2016 , ... ... of "Cardiovascular Health" in USA Today, which covers the innovative treatments, therapeutic technologies, ... while maintaining fulfilling lives. “We are prolonging life 6 years in the last ...
(Date:12/2/2016)... Honolulu, Hawaii (PRWEB) , ... December 02, 2016 ... ... 3, 2016 at the Hyatt Regency Waikiki Beach Resort and Spa in Honolulu, ... (CME) in the field of pain management. , The demand for supplemental ...
Breaking Medicine News(10 mins):
(Date:12/2/2016)...  LifeVac, the revolutionary device that has successfully rescued ... Training and Support Services (ERTSS) training programs. ... part of the ERTSS mission to save lives," said ... "Having an established network of expert trainers demonstrating how ... our efforts to spread LifeVac,s message that choking deaths ...
(Date:12/2/2016)... ATLANTA , Dec. 2, 2016 Quantum ... screening and expert radiologist interpretation directly to women at ... partners with corporations, such as Delta Air Lines and ... cancer screening as a component of wellness initiatives. ... women of SunTrust. It enables them to have a ...
(Date:12/2/2016)... Va. , Dec. 2, 2016  The ... by the Academy of Managed Care Pharmacy (AMCP), ... organizations can better address the opioid addiction crisis, ... Assisted Therapies (MAT). ATAG,s newly released ... Improving Access to Naloxone," addresses many issues around ...
Breaking Medicine Technology: