Navigation Links
Pathway found that lets mosquitoes fatten up, slow down for winter
Date:4/24/2008

se.

On the other end of the diapause spectrum, the scientists disrupted the function of the FOXO gene in mosquitoes that already had entered a dormant state. Within four days, these mosquitoes stopped retaining accumulated fat, killing more than 80 percent of them within three weeks.

Diapause is critical to the survival of the species, as these mosquitoes hold onto their immature eggs through the winter and wait until spring to develop them to maturity and deposit them. Similarly, the West Nile virus appears to be carried within the female from one season to another. Though newly infected birds also could be responsible for the viruss emergence in a given year, it appears that propagation of the virus may be dependent on these mosquitoes survival, Denlinger said.

Though there is limited evidence so far, other research has suggested the insulin signaling pathway affects dormancy in the roundworm and fruit fly.

These are very different organisms with a very different evolutionary history yet theyre using this common pathway of insulin signaling to regulate their dormancy. So an important aspect of this is the suggestion that this might be a common pathway used by lots of organisms to regulate their dormancy period, Denlinger said.

Warmer temperatures are identified as the signal that brings mosquitoes out of their dormant state, he said. At this stage, they produce a hormone called juvenile hormone, which implies another shift in the insulin signaling pathway at the end of diapause that enables this hormone production.


'/>"/>
Contact: David Denlinger
Denlinger.1@osu.edu
614-292-8209
Ohio State University
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Proteins that stop a major signaling pathway can also generate new proteins
2. Stem cells and cancer: cancer pathways that also control the adult stem cell population
3. Researcher discovers pathway plants use to fight back against pathogens
4. Newly defined signaling pathway could mean better biofuel sources
5. MIT applies engineering approach to studying biological pathways
6. Researchers reveal HIV peptides possible pathway into the cell
7. Paired microbes eliminate methane using sulfur pathway
8. Rong Li Lab reports protein interactions of MAP kinase signaling pathway
9. Salk scientists identify key nerve navigation pathway
10. Study identifies pathway required for normal reproductive development
11. Old developmental pathways spawn revolutionary evolutionary changes
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/18/2014)... contraceptive pills in Peru found that 28 percent ... quality or falsified. Many pills released the active ... ingredient. One batch had no active ingredient at ... researchers at the Georgia Institute of Technology developed ... assess suspected counterfeit drugs and then characterize their ...
(Date:4/18/2014)... to the story of how barnyard chickens came to be, ... journal Proceedings of the National Academy of Sciences . ... 200-2300 years ago in Europe, researchers report that just a ... different from the chickens we know today. , The results ... domestic chickens -- such as their yellowish skin -- only ...
(Date:4/17/2014)... 17 In the most densely forested and most ... two centuries of human needs, values and practices. Disturbances ... forests for agriculture and development, have set the stage ... Forest Service study reports. , The report Five ... management needs in the Northern United States ...
Breaking Biology News(10 mins):Counterfeit contraceptives found in South America 2Counterfeit contraceptives found in South America 3Ancient DNA offers clues to how barnyard chickens came to be 2Five anthropogenic factors that will radically alter northern forests in 50 years 2Five anthropogenic factors that will radically alter northern forests in 50 years 3
... estrogen receptors are more difficult to treat than ... Meeting 2013 demonstrates an investigational drug, Paragazole, that ... and that increases the sensitivity of these cells ... do is use triple-negative breast cancer models to ...
... identified four genes newly associated with severe childhood obesity. ... variations in severely obese children. The team found ... help to maintain protein receptors known to be involved ... targets for the development of new drugs against obesity. ...
... biologist at the Florida State University College of Medicine ... closer to understanding how life first emerged on Earth ... team produced data supporting the idea that 10 amino ... years ago were capable of forming foldable proteins in ...
Cached Biology News:Finding genes for childhood obesity 2Researcher offers clues on the origins of life 2Researcher offers clues on the origins of life 3
(Date:1/15/2014)... IPSWICH, England , January 15, 2014 ... to win races on the Formula 1 track could help ... between McLaren Applied Technologies (MAT), Stowhealth (a GP surgery based ... funded by healthcare provider Simplyhealth. Telemetry technology, which ...
(Date:1/15/2014)... (PRWEB) January 15, 2014 2013 was ... Scottsdale’s Brain State Technologies®. They saw continued independent research ... Center who were awarded a $1 million grant from ... in “Brain and Behavior” a peer reviewed journal, Amy ...
(Date:1/14/2014)... Washington, DC (PRWEB) January 14, 2014 ... session for Thursday, January 23, 2014 at 2pm EST ... Actionable Knowledge.” The topic focuses on how technology can ... mission critical decisions for government agencies. The online webinar ...
(Date:1/14/2014)... Texas , Jan. 14, 2014 The ... and research medicinal plants and therapeutic derivatives thereof ... health professionals, and researchers about the challenges of ... http://photos.prnewswire.com/prnh/20100430/DC95601LOGO ) The Society ...
Breaking Biology Technology:Formula 1 Technology Tackles Obesity in Unique Healthcare Partnership 2Formula 1 Technology Tackles Obesity in Unique Healthcare Partnership 3Formula 1 Technology Tackles Obesity in Unique Healthcare Partnership 4Dynamic Innovative Technology Showcased at Scottsdale Company’s Open House 2Dynamic Innovative Technology Showcased at Scottsdale Company’s Open House 3Webcast - Natural Language Processing: Converting Raw Data into Actionable Knowledge – Hosted by Carahsoft and CDS Federal Services 2World's Largest Group of Medicinal Plant Researchers Endorses ABC-AHP-NCNPR Botanical Adulterants Program 2World's Largest Group of Medicinal Plant Researchers Endorses ABC-AHP-NCNPR Botanical Adulterants Program 3World's Largest Group of Medicinal Plant Researchers Endorses ABC-AHP-NCNPR Botanical Adulterants Program 4World's Largest Group of Medicinal Plant Researchers Endorses ABC-AHP-NCNPR Botanical Adulterants Program 5World's Largest Group of Medicinal Plant Researchers Endorses ABC-AHP-NCNPR Botanical Adulterants Program 6World's Largest Group of Medicinal Plant Researchers Endorses ABC-AHP-NCNPR Botanical Adulterants Program 7World's Largest Group of Medicinal Plant Researchers Endorses ABC-AHP-NCNPR Botanical Adulterants Program 8
... -- After announcing last April a method for ... cylinders only a few atoms thick, a Duke ... process to create exclusively semiconducting versions of these ... way for manufacturing reliable electronic nanocircuits at the ...
... , ... Englewood, CO (PRWEB) January 21, 2009 -- ... (OTJ), has announced new solutions for human resource and recruitment professionals ... geographically localized markets. , , , , ,OTJ currently powers online ...
... in Diabetes Drug TherapyHARTFORD, Conn., Jan. 21 ... of certain genes in vascular and energy pathways ... retention) in patients taking the thiazolidinedione (TZD) drugs ... from Joslin Diabetes Center Affiliate at The Hospital ...
Cached Biology Technology:Semiconducting nanotubes produced in quantity at Duke 2Semiconducting nanotubes produced in quantity at Duke 3onTargetjobs Offers Employers New Recruitment Solutions to Reach Local Career Candidates 2Cardiovascular Side Effects of Pioglitazone and Rosiglitazone Linked to Vascular and Energy Pathways by Genomas Clinical Study 2
...
Contains L-glutamine...
...
... ZMD.358. Immunogen: Synthetic peptide ... of human mouse and rat ... human and mouse LRP5 proteins. ... controls: mouse LRP5-pSEC-tag-transfected 293T cells ...
Biology Products: