HOME >> BIOLOGY >> NEWS
Longevity by a nose (or odorant receptor)

ifespan.

In the second part of the study, the scientists tested fruit flies or Drosophila melanogaster that could not perceive odors well. The gene Or83b was mutated in these insects, leaving the flies with a severely reduced sense of smell, although they can smell some things.

These flies appear to be much longer-lived, said Libert. There was as much as a 57 percent lifespan extension. Most fruit flies live about 60 days. These lived longer than 80.

The researchers also found other differences in the flies who could not smell. The slightly obese female flies stored more triglycerides (which could then be used for energy). The flies that could not smell were also more stress-resistant.

If you expose them to 100 percent oxygen, which is toxic they survive very well, said Pletcher.

Pletcher, Libert and their colleagues do not know how applicable this finding is to higher-level organisms such as mice, primates and humans. For example, said Pletcher, a gene such as Or83b has not yet been described in mammals, which have hundreds of odor receptors, many of which have not been carefully studied.

They hope to figure out how exactly odors in general affect longevity in the fly and possibly extend that understanding to other organisms even humans.

Although a gene such as Or83b has not yet been described in mammals, Pletcher, Libert and their colleagues suggest that this finding may be applicable in higher-level organisms such as mice, primates and humans, all of which have hundreds of odor receptors, many of which have not been carefully studied.


'"/>

Contact: Laura Madden-Fuentes
maddenfu@bcm.edu
713-798-4710
Baylor College of Medicine
1-Feb-2007


Page: 1 2

Related biology news :

1. Longevity gene also protects memory, cognitive function
2. For the first time: Longevity modulated without disrupting life-sustaining function
3. Longevity controlled by calorie quality, not quantity

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:2/27/2017)... 2017   Strategic Cyber Ventures , the industry,s ... a $3.5 million investment in  Polarity , the first ... is DC based and is led by cybersecurity veterans ... Ron Gula , also a longtime cybersecurity veteran ... this series A round of funding. This new funding ...
(Date:2/21/2017)... -- Der weltweite Biobanking-Sektor wird bis zum ... mit mehr als 50 Vertretern aus verschiedenen Branchen wurde aber ... diese Prognose zu realisieren. ... Zu den Schwierigkeiten für ... für die Biobank, die Implementierung Zeit sparender Technologien, ein ...
(Date:2/10/2017)... DUBLIN , Feb 10, 2017 ... PharmaBiotech,s new report "Personalized Medicine - Scientific and Commercial ... ... in personalized medicine. Diagnosis is integrated with therapy for selection ... emphasis on early detection and prevention of disease in modern ...
Breaking Biology News(10 mins):
(Date:3/23/2017)... ... March 23, 2017 , ... Advanced Polymer ... hire of Dr. Sigmund “Sig” Floyd as Vice President ? Global Business Development. ... development activities. , “Dr. Floyd’s career has spanned 30 years in the chemicals ...
(Date:3/22/2017)... CAMBRIDGE, Mass. , March 22, 2017 ... announced that it has eclipsed the 130 million covered ... Cross Blue Shield of Texas . ... stages, the Company continues to enjoy strong payor acceptance ... of its clinical programs and genetic counseling, its industry-leading ...
(Date:3/22/2017)... /PRNewswire/ - FACIT announced a seed stage investment ... start-up created by FACIT focused on developing a ... with non-dilutive capital, achieves a targeted $3.0M financing ... Propellon to accelerate the nomination of a candidate ... entering a strategic partnership for clinical trials in ...
(Date:3/22/2017)... Ca (PRWEB) , ... March 21, 2017 , ... ... clearance of biologics. To acquire information on the desired increase and/or decrease in ... biopharmaceutical industry for rapid N-glycosylation profiling of therapeutic antibodies. , To meet ...
Breaking Biology Technology:
Cached News: