Navigation Links
Study shows how mosquitoes handle the heat of a hot blood meal
Date:4/25/2011

COLUMBUS, Ohio Mosquitoes make proteins to help them handle the stressful spike in body temperature that's prompted by their hot blood meals, a new study has found.

The mosquito's eating pattern is inherently risky: Taking a blood meal involves finding warm-blooded hosts, avoiding detection, penetrating tough skin and evading any host immune response, not to mention the slap of a human hand.

Until now, the stress of the hot blood meal itself has been overlooked, researchers say.

Scientists have determined in female mosquitoes that the insects protect themselves from the stress of the change in body temperature during and after a meal by producing heat shock proteins. These proteins protect the integrity of other proteins and enzymes, in turn helping the mosquitoes digest the blood meal and maintain their ability to produce eggs.

Tests in two other types of mosquitoes and in bed bugs showed that these insects undergo a similar response after a blood meal.

"These heat shock proteins are really important in a lot of stress responses. Our own bodies make these proteins when we have a fever," said David Denlinger, professor of evolution, ecology and organismal biology at Ohio State University and senior author of the study. "It's one of those things that, in retrospect, seems obvious that blood meals might cause a stress like that. But it hadn't been pursued before."

The research appears this week in the online early edition of the Proceedings of the National Academy of Sciences.

Denlinger and colleagues conducted experiments in the Aedes aegypti mosquito, which is a carrier of yellow fever.

The researchers placed sensors on female mosquitoes and observed that upon taking in a blood meal on a chicken, the insects' body temperatures increased from 22 to 32 degrees Celsius (71.6 to 89.6 Fahrenheit) within one minute among the most rapid body temperature increases ever recorded
'/>"/>

Contact: David Denlinger
denlinger.1@osu.edu
614-292-6425
Ohio State University
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Study in roundworm chromosomes may offer new clues to tumor genome development
2. Gulf oil spill similar to Exxon Valdez in initial social and mental impacts, study finds
3. Study of deer mice on Californias Channel Islands provides new information on hantavirus
4. VIMS study: Propeller turbulence may affect marine food webs
5. Reptilian root canal: U of T Mississauga study reveals infection in jaw of ancient fossil
6. Nationwide study finds US meat and poultry is widely contaminated
7. New study finds stronger regulations of in vitro fertilization may save lives
8. Study: Algae could replace 17 percent of US oil imports
9. Scots carbon emissions could be halved in decades, study suggests
10. Alcohol helps the brain remember, says new study
11. Study provides new way to classify E. coli bacteria and test for fecal contamination
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/19/2014)... thousands of years has adapted to the arctic cold, and ... cold dangerous for you. , This is happening to the ... provoking substance, called nonylphenol, comes from the use of certain ... a endocrine disruptor, but when entering the worm it has ... the cells in its body from cold damage. , ...
(Date:9/18/2014)... Boulder, Colo., USA A new GSA Bulletin ... along the lower Rio Puerco and Chaco Wash in ... tree rings from salt cedar and willow, investigators were ... thick or greater. They then combined this data with ... reconstruct the history of these arroyos. , Arroyos are ...
(Date:9/18/2014)... A novel robotic system that can operate inside ... tested as part of a biomedical research partnership program ... aim of determining if the robot, in conjunction with ... more accurate, less costly, and less discomforting for the ... deliver prostate cancer therapies with greater precision. , Developed ...
Breaking Biology News(10 mins):Environmental pollutants make worms susceptible to cold 2Environmental pollutants make worms susceptible to cold 3Tree rings and arroyos 2Tree rings and arroyos 3Tree rings and arroyos 4Tree rings and arroyos 5Tree rings and arroyos 6Tree rings and arroyos 7Trial begins for MRI-compatible robot designed to improve accuracy of prostate biopsies 2Trial begins for MRI-compatible robot designed to improve accuracy of prostate biopsies 3Trial begins for MRI-compatible robot designed to improve accuracy of prostate biopsies 4Trial begins for MRI-compatible robot designed to improve accuracy of prostate biopsies 5
... technologies provide the ability to monitor short- and ... off-shore oilfields, and to supply real-time information about ... Ocean Sensing and Monitoring: Optics and Other Methods, ... Lab oceanographer Weilin (Will) Hou, provides the background, ...
... Collaborative Biotechnologies (ICB) has received an extension of ... Research Office, providing an additional $48 million over ... by biological systems. The continuation in ICB funding ... fundamental research in the areas of biotechnology, chemistry, ...
... are over a million people with spinal cord injuries (SCI) ... cases every year. Furthermore, it is estimated that there are, ... largest integrated health care system in the world for SCI ... all the various ways that SCI affect those with this ...
Cached Biology News:New Ocean Sensing and Monitoring brings tutorial approach to latest advances 2Army renews bio-inspired engineering and science research center at UC Santa Barbara with $48 million 2Army renews bio-inspired engineering and science research center at UC Santa Barbara with $48 million 3Quadriplegics at risk for serious sleep breathing disorder 2Quadriplegics at risk for serious sleep breathing disorder 3
(Date:9/18/2014)... , Sept. 18, 2014  Health Enhancement Products, Inc. ... investigating early-stage algae bioactive compounds and metabolic processes, is pleased ... company,s board of directors. Ms. Nola E. Masterson , ... advisor joined the board effective September 17, 2014. ... agree to join our board," states Andrew Dahl , ...
(Date:9/18/2014)... 2014 On Tuesday, Secretary of Energy ... Risch for National Lab Day on the Hill. The ... national laboratory system. Durbin and Risch also formally launched ... awareness of the reach of the national labs as ... address some of our nation's most pressing challenges. , ...
(Date:9/18/2014)... -- Research and Markets has announced the ... 2014" report to their offering. ... professional and in-depth study on the current state of ... provides a basic overview of the industry including definitions, ... market analysis is provided for the international markets including ...
(Date:9/18/2014)... 2014  U.S. biotech company Kultevat has ... for technology developed by the Donald Danforth Plant ... including for applications in production of natural rubber in ... was developed under the direction of Roger Beachy ... president of the Danforth Plant Science Center, and is ...
Breaking Biology Technology:Health Enhancement Announces New Board Member In Advance Of Annual Shareholder Meeting 2Lab Day Highlight Labs' Contribution to U.S. Competitiveness and Innovation 2Lab Day Highlight Labs' Contribution to U.S. Competitiveness and Innovation 3Global Human Albumin Industry Report 2014 2Global Human Albumin Industry Report 2014 3Kultevat obtains license of gene switch technology 2
... Editor's note: Richard Thieme's new book, Islands ... on the digital world. Released in May, Thieme's book has ... his ability to explore the world of technology and present ... , As Andrew Briney, editor in chief of Information Security ...
... is good ink and if you believe that name and brand ... couple minutes a month to Google yourself. , ,I ... folder in my office and an electronic folder on my hard ... dont contain what people heard or where they heard it. , ...
... note: Richard Thieme's new book, Islands in the ... the digital world. WTN will be reprinting excerpts from selected ... the month. This week features an excerpt from chapter four, ... enjoy these samples of Thieme's writings. , , Hactivism ...
Cached Biology Technology:Technology isn't about technology 2Technology isn't about technology 3Technology isn't about technology 4Learning how far your message reaches by Googling yourself 2Learning how far your message reaches by Googling yourself 3Learning how far your message reaches by Googling yourself 4Islands in the Clickstream: Hactivism and Soul Power 2Islands in the Clickstream: Hactivism and Soul Power 3Islands in the Clickstream: Hactivism and Soul Power 4
Mouse monoclonal antibody raised against a partial recombinant FBXO11. NCBI Entrez Gene ID = FBXO11...
Mouse polyclonal antibody raised against a partial recombinant LASS3. NCBI Entrez Gene ID = 204219...
... Antibody against Nonmuscle Myosin II Heavy ... (Stored in TBS + 0.03% Thimerosal) ... peptide SDVNETQPPQSE corresponding to the C-terminus ... B (MHC-B) This antibody is effective ...
... Anti-Mi-2 Immunogen : ... acid residues 474-970 of human ... 7.4, 0.105M NaCl, 0.035% sodium ... Assurance: routinely evaluated by immunoblot ...
Biology Products: