Navigation Links
Grasshopper mice are numb to the pain of the bark scorpion sting
Date:10/24/2013

The painful, potentially deadly stings of bark scorpions are nothing more than a slight nuisance to grasshopper mice, which voraciously kill and consume their prey with ease. When stung, the mice briefly lick their paws and move in again for the kill.

The grasshopper mice are essentially numb to the pain, scientists have found, because the scorpion toxin acts as an analgesic rather than a pain stimulant.

The scientists published their research this week in Science.

Ashlee Rowe, lead author of the paper, previously discovered that grasshopper mice, which are native to the southwestern United States, are generally resistant to the bark scorpion toxin, which can kill other animals.

It is still unknown why the toxin is not lethal to the mice.

"This venom kills other mammals of similar size," said Rowe, Michigan State University assistant professor of neuroscience and zoology. "The grasshopper mouse has developed the evolutionary equivalent of martial arts to use the scorpions' greatest strength against them."

Rowe, who conducted the research while at The University of Texas at Austin, and her colleagues ventured into the desert and collected scorpions and mice for their experiments.

To test whether the grasshopper mice felt pain from the toxin, the scientists injected small amounts of scorpion venom or nontoxic saline solution in the mice's paws. Surprisingly, the mice licked their paws (a typical toxin response) much less when injected with the scorpion toxin than when injected with a nontoxic saline solution.

"This seemed completely ridiculous," said Harold Zakon, professor of neuroscience at The University of Texas at Austin. "One would think that the venom would at least cause a little more pain than the saline solution. This would mean that perhaps the toxin plays a role as an analgesic. This seemed very far out, but we wanted to test it anyway."

Rowe and Zakon discov
'/>"/>

Contact: Ashlee Rowe
roweashl@msu.edu
517-432-4468
University of Texas at Austin
Source:Eurekalert  

Page: 1 2

Related biology news :

1. New scorpion discovery near metropolitan Tucson, Arizona
2. Clemson hosting scientists who study devastating diseases
3. Paper-based device could bring medical testing to remote locales
4. Neuron claws in the brain enable flies to distinguish 1 scent from another
5. New Brain Supplement Focus Boost Launches, Boosting Alertness, Memory and Focus
6. Finally mapped: The brain region that distinguishes bits from bounty
7. FPC Awarded new Smartphone DW From Existing Prominent Asian OEM Customer for Launch With Leading US Operator
8. Funding for animal testing alternative
9. First update in a century in testing drugs for elemental impurities
10. CCNY chemists devise new way to prepare molecules for drug testing
11. With early, obvious benefit of a targeted cancer drug, should expensive clinical testing continue?
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Grasshopper mice are numb to the pain of the bark scorpion sting
(Date:12/11/2014)... 2014 Research and Markets ... ( http://www.researchandmarkets.com/research/9ql3kr/biometrics_market ) has announced the addition of ... report to their offering. One ... adoption of multimodal biometric systems. Multimodal biometric systems ... for verification and identification purposes. This helps to ...
(Date:12/10/2014)... , Dec. 8, 2014 You,ve been here before: ... but can,t remember your password, site key or the answer ... your first grade teacher? Today, Hoyos ... app that will finally put an end to the ... 1U TM . 1U leverages a user,s smartphone to ...
(Date:12/10/2014)... 2014 CIE San Diego has launched an ... connective tissue that enhances care coordination among social service ... client-level information; earned a second $1 million grant from ... seniors aging in community and; will be recognized as ... th 4-6p. CIE San Diego today ...
Breaking Biology News(10 mins):Biometrics Market in India 2015-2019: Key Vendors are 3M Cogent, NEC, Safran and Suprema 2The Password is Finally Dead: Launch of 1U Mobile App Eliminates Need for All Usernames and Passwords 2The Password is Finally Dead: Launch of 1U Mobile App Eliminates Need for All Usernames and Passwords 3Community Information Exchange San Diego Launches Pilot, Secures $1 Million Expansion Grant, and Becomes a "Live Well San Diego" Partner 2Community Information Exchange San Diego Launches Pilot, Secures $1 Million Expansion Grant, and Becomes a "Live Well San Diego" Partner 3Community Information Exchange San Diego Launches Pilot, Secures $1 Million Expansion Grant, and Becomes a "Live Well San Diego" Partner 4
... Materials engineers have created a new type of membrane ... be used for environmental cleanup, water purification and industrial ... conventional filters for separating oil from water and works ... usually mutually exclusive. Researchers attached the material to a ...
... the Netherlands Royal Academy of Arts and Sciences (KNAW) ... a new research programme: the Joint Scientific Thematic Research ... and the Academy will work together on developing bilateral ... and the Academy launched the joint research programme during ...
... Journal of Preventive Medicine special issue on climate ... Climate Changing People" conference today in Los Angeles. ... MD, DrPH, speaking about the impacts of climate change ... public health challenge. Health professionals need to understand the ...
Cached Biology News:New filtering technology has environmental, industrial applications 2New filtering technology has environmental, industrial applications 3NWO and Academy launch research program with China 2Issues at intersection of climate change and health impact global well-being 2Issues at intersection of climate change and health impact global well-being 3Issues at intersection of climate change and health impact global well-being 4
(Date:12/19/2014)... MA (PRWEB) December 18, 2014 Reports ... in the United States suffer from one or more ... asthma, or cancer. Medication can address some of these ... daily activities that many sufferers face. While implanted nerve ... and stimulate the whole nerve, which can induce side ...
(Date:12/19/2014)... , Dec. 18, 2014  Decision Resources Group ... dental biomaterial market will grow moderately through 2023 as ... and growing awareness of dental biomaterials all spur procedure ... such as China and ... bring dental procedures within reach for a larger proportion ...
(Date:12/17/2014)... Based on the revenues gained from ... is dominated by four major players contributing to ... players include GE Healthcare (U.K.), Siemens AG (Germany), ... Full Report Copy at http://www.marketsandmarkets.com/Market-Reports/surgical-imaging-market-210534462.html , ... attributed to its strong product portfolio, which includes ...
(Date:12/17/2014)... 17, 2014 This report is ... Tubing industry. For an overview analysis, the report ... industry chain structure, industry overview, policy analysis, and ... industry has witnessed rapid development with key ... acquisitions. This report mentions quartz tubing upstream raw ...
Breaking Biology Technology:Draper Wins GSK Funding for Smaller, Smarter Implantable Devices 2Asia Pacific Dental Biomaterial Market Will Grow Strongly Through 2023 2Asia Pacific Dental Biomaterial Market Will Grow Strongly Through 2023 3Global Refurbished Surgical Imaging Market by Product & Application is Estimated to Reach $1.25 Billion by 2019 - New Research Report by MarketsandMarkets 2Global Refurbished Surgical Imaging Market by Product & Application is Estimated to Reach $1.25 Billion by 2019 - New Research Report by MarketsandMarkets 3Global Refurbished Surgical Imaging Market by Product & Application is Estimated to Reach $1.25 Billion by 2019 - New Research Report by MarketsandMarkets 42020 Quartz Tubing Market: Global Development & Forecasts Analysis Now at DeepResearchReports.com 2
... /PRNewswire-FirstCall/ - Oncothyreon Inc. (NASDAQ: ONTY ) (TSX: ONY) ... basic and diluted share, for the three months ended June 30, ... per basic and diluted share, for the comparable period in 2008. ... months ended June 30, 2009 for the change in the fair ...
... , , , ... Accera, Inc., a biotechnology company delivering breakthrough therapies in central ... paper in the peer-reviewed journal Nutrition & Metabolism . ... mild to moderate Alzheimer,s disease: a randomized, double-blind, placebo-controlled, multicenter ...
... , , , ... Cempra Pharmaceuticals today announced the appointment of John H. ... of Eli Lilly and Company, to the company,s Board of ... executive and operational management experience, including leadership of successful anti-infective ...
Cached Biology Technology:Oncothyreon reports second quarter 2009 financial results 2Oncothyreon reports second quarter 2009 financial results 3Oncothyreon reports second quarter 2009 financial results 4Oncothyreon reports second quarter 2009 financial results 5Oncothyreon reports second quarter 2009 financial results 6Oncothyreon reports second quarter 2009 financial results 7Accera Announces Peer-Reviewed Publication of the Results of its 90-Day Clinical Study of AC-1202 (Axona(TM) ) in Mild to Moderate Alzheimer's Disease 2Accera Announces Peer-Reviewed Publication of the Results of its 90-Day Clinical Study of AC-1202 (Axona(TM) ) in Mild to Moderate Alzheimer's Disease 3Cempra Pharmaceuticals Announces Appointment of John H. Johnson to Board of Directors 2Cempra Pharmaceuticals Announces Appointment of John H. Johnson to Board of Directors 3
APG5 autophagy 5-like (S. cerevisiae)...
Human Jagged 2 Biotinylated Affinity Purified PAb...
Mouse/Rat WNK1 Affinity Purified Polyclonal Ab...
Griess Reagent component for determination of nitrite in aqueous solutions....
Biology Products: