Navigation Links
Lung disease may be genetic, despite lack of family history
Date:5/17/2010

ATS 2010 NEW ORLEANSPatients who encounter serious lung diseases in middle age, despite an absence of family history or other predisposing factors, may still have their genes to blame, according to a new study conducted by researchers at the National Institute of Allergy and Infectious Diseases, part of the National Institutes of Health.

The study also determined that the use of a simple screening test may help identify those genetic abnormalities and allow detection before the onset of disease.

"Earlier reports have indicated a correlation between certain nontuberculous mycobacterial respiratory infections and specific gene abnormalities," noted lead author Kenneth Olivier, M.D., M.P.H., NIAID staff clinician. "The results of this study confirm the correlation, and indicate the usefulness of simple testing in identifying these abnormalities, especially in an older population."

The results will be reported at the ATS 2010 International Conference in New Orleans.

The study of 32 patients focused on the movement of cilia, the tiny hair-like filaments that line the respiratory tract. In normal respiration, cilia help move dust and other fine particles out of the airway, keeping passages clear of harmful bacteria and other pathogens. When cilia are altered as the result of genetic mutation, they may fail to function properly, allowing disease-causing bacteria to build up.

"Genetic abnormalities in this clearance mechanism may predispose some older individuals to the development of certain pulmonary diseases, even though those individuals do not appear to have any predisposing factors," Dr. Olivier said.

Physicians can determine whether patients are at risk of the cilia not functioning correctly through a simple, noninvasive test that measures the levels of nitric oxide produced in the nose and sinuses. In patients who are predisposed to nontuberculous lung diseases, Dr. Olivier noted nitric oxide levels significantly lower than those of healthy individuals.

"Measurement of nasal nitric oxide production is easily performed, and can be an effective and noninvasive screen for identifying patients who may have abnormal ciliary function," he said. However, the screening test may also be abnormal for some patients with cystic fibrosis or acute viral respiratory infections, he added.

In patients with no known risk factors for lung disease, identifying which individuals are most likely to develop illness has posed a dilemma for physicians. Dr. Olivier said the results of this study may help researchers determine additional genetic abnormalities that could cause lung disease to develop, and may even lead to effective treatments.

"These results may lead to better understanding of predisposing genetic factors that will allow identification of at-risk individuals before the typical middle-age disease onset," he noted. "It may also allow development of preventive strategies or therapeutic interventions aimed at correcting airway clearance deficiencies."

"The next step is to focus on the identification of mutations in genes associated with ciliary dysfunction, to search for as yet unidentified novel cilia genes, and to utilize evolving technologies to better characterize genetic risks in patients with these diseases," he added.


'/>"/>

Contact: Keely Savoie
ksavoie@thoracic.org
212-315-8620
American Thoracic Society
Source:Eurekalert

Related medicine news :

1. Blood stem-cell transplant regimen reverses sickle cell disease in adults
2. New research identifies modifiable risk factors for heart disease
3. Distinct demographic profiles between Crohns disease and ulcerative colitis
4. Summit Medical Group hosts “Go Red Day” to Raise Awareness of Heart Disease and Stroke
5. Keenan Selects Nurtur and Healthyroads for Integrated Disease Management and Personal Wellness Programs
6. Michael J. Fox Foundation Awards $2.8 Million to Drive Development of Parkinsons Disease Biomarker Pipeline
7. Tests showing smokers their individual risk of future disease will help them quit, says paper
8. Researcher to track spread of disease, malware and power outages
9. Texas Health Dallas Launches Screening Program for Female Heart Disease
10. Hard to Treat Diseases (HTDS) Comments on Recent Movement Of Its Security
11. A better sign of blood vessel narrowing and early coronary artery disease
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:1/23/2017)... ... January 23, 2017 , ... Moisture measurement ... the right method is paramount to success. Selecting an inappropriate measurement method can ... multiple persons use the same equipment. Rare or expensive substances are wasted and ...
(Date:1/23/2017)... ... January 23, 2017 , ... ... general gynecological care and gynecological services for women of all ages. ... for a wide variety of reproductive services from routine health screenings to diagnosing ...
(Date:1/23/2017)... ... January 23, 2017 , ... “Some Infallible Characteristics of Christ”: a ... Characteristics of Christ” is the creation of published author, Rev. Dr. Robert W. Thomas, ... thirteen years, a preacher for over nineteen, a pastor for over fifteen years. He ...
(Date:1/22/2017)... , ... January 22, 2017 , ... Medical lab ... results. Often the results of a simple test will take days to arrive to ... Test Now offers customers direct access to their lab tests, bypassing the cost and ...
(Date:1/21/2017)... ... , ... Phytocéane invites you to take an exotic journey deep ... with ZANZIBAR SHOWER GEL. Inspired by the beauty of Zanzibar, a Tanzanian archipelago off ... vegetal coral to create this gentle, crystal-clear shower gel to cleanse the body and ...
Breaking Medicine News(10 mins):
(Date:1/22/2017)... Switzerland and ABU DHABI , Saudi ... from the US ... , Hospital of the Future , at the ... the hospital of the future will be driven by big data and powered ... according to the panel of experts that discussed the ,Hospital of the Future, ...
(Date:1/21/2017)... According to a new market research report "Life Science ... Component (Software, Service), Delivery (On premise, Cloud), End user (Pharmaceutical, Biotechnology, ... market is expected to reach USD 24.73 Billion by 2021 from ... the forecast period. Continue Reading ... ...
(Date:1/21/2017)... -- Research and Markets has announced the addition of ... Route Of Administration, End User - Forecast to 2025" report ... ... a CAGR of around 7.8% over the next decade to reach ... analyzes the global markets for Advanced Drug Delivery across all the ...
Breaking Medicine Technology: