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:3/31/2015)... 2015  Elephant Talk Communications Corp. (NYSE MKT: ETAK) ... Software Defined Network Architecture (ET Software DNA® 2.0) platforms ... approximately $20.4 million for the year ended December 31, ... the year ended December 31, 2013. ... completed its multi-year transition away from its legacy landline ...
(Date:3/26/2015)... March 26, 2015 The Granite ... recreation and athletic club, today announced it has implemented ... freedom of movement for members and staff, while restricting ... comprehensive process, we selected FST,s IMID Access system because ... for our members and staff, in addition to unparalleled ...
(Date:3/24/2015)... WASHINGTON , March 24, 2015   NexID ... applications with critical security-authentication needs, today announced the beginning ... fake-finger-detection (FFD) solution. The company, based in ... announcement at the three-day Connect:ID Expo, which began here ... NexID said version 2.0 of its SDK boosts ...
Breaking Biology News(10 mins):Elephant Talk Reports 2014 Fourth Quarter and Year End Financial Results 2Elephant Talk Reports 2014 Fourth Quarter and Year End Financial Results 3Elephant Talk Reports 2014 Fourth Quarter and Year End Financial Results 4Elephant Talk Reports 2014 Fourth Quarter and Year End Financial Results 5Elephant Talk Reports 2014 Fourth Quarter and Year End Financial Results 6Granite Club First Private Club in North America to Implement FST Biometrics Secure Access Solution, as Part of Multi-million Dollar Expansion 2NexID Begins Shipments Of Version 2.0 Fake-Finger-Detection Solution 2
... Iowa A national panel led by Iowa ... research and develop technologies that capture, use and ... development and national security. The 33-member National ... for the first time in Chicago. Participants represented ...
... ferus) has been reduced to only three locations world-wide: two ... Mongolia (Great Gobi A Specially Protected Area). The Great ... unique desert environment that is home to several rare or ... the Gobi bear ( Ursus arctos gobiensis ), the snow ...
... the technology include the ability to label genuine ... difficult to counterfeit. Printers can reduce the use ... can create striking packages that are environmentally friendly. ... which can be made more decorative without compromising ...
Cached Biology News:Iowa State engineers establish national panel to advance a carbon negative economy 2Iowa State engineers establish national panel to advance a carbon negative economy 3Catching camels in the Gobi 2Catching camels in the Gobi 3Ecological light scattering film for brand protection, packages and consumer products 2
(Date:4/17/2015)... , April 17, 2015  US-Australian drug discovery company, ... Memorandum of Understanding with the Feinstein Institute for ... York to collaborate with the objective ... The collaboration brings together the drug discovery ... expertise of the Feinstein Institute in neurosciences and ...
(Date:4/17/2015)... WI (PRWEB) April 17, 2015 ... sales and marketing support for the powerful Orthogonal ... the Chemical Genomics Center at the Lankenau Institute ... LCGC’s mission is to measurably improve successful drug ... HTS, by offering rare, drug-like libraries available nowhere ...
(Date:4/16/2015)... Mass. (PRWEB) April 16, 2015 ... smart data solutions driven by Semantic Web technology, ... of specialist information and services for the academic ... announced that its joint solution ‘Smart Data Lake ... a finalist for the 2015 Bio-IT ‘Best of ...
(Date:4/16/2015)... 16, 2015 Proove Biosciences , ... of BIO Contest for the 2015 BIO International ... 2015 BIO International Convention will take place June 15-18 ... the Buzz of BIO contest, industry leaders will be ... at the conference. The community voting period began on ...
Breaking Biology Technology:Novogen and Feinstein Institute Join Forces to Find Effective Treatments for Brain Cancer 2Novogen and Feinstein Institute Join Forces to Find Effective Treatments for Brain Cancer 3Novogen and Feinstein Institute Join Forces to Find Effective Treatments for Brain Cancer 4Novogen and Feinstein Institute Join Forces to Find Effective Treatments for Brain Cancer 5Novogen and Feinstein Institute Join Forces to Find Effective Treatments for Brain Cancer 6BellBrook Labs and Lankenau Institute Partner to Accelerate Drug Discovery using Orthogonal Pooled Screening 2Cambridge Semantics and Informa Named Bio-IT Award Finalist for Smart Data Lake Solution for Clinical Trial and Competitive Intelligence 2Cambridge Semantics and Informa Named Bio-IT Award Finalist for Smart Data Lake Solution for Clinical Trial and Competitive Intelligence 3Proove Bisociences to Participate in the Buzz of BIO at the 2015 BIO International Convention 2Proove Bisociences to Participate in the Buzz of BIO at the 2015 BIO International Convention 3
... Nov. 14, 2011 Pharmasset, Inc. (Nasdaq: ... discovering, developing, and commercializing novel drugs to treat viral ... the fiscal year ended September 30, 2011. At fiscal ... cash equivalents and used $21.7 million of our cash ...
... inVentiv Health, Inc., offering best-in-class clinical, commercial ... today that it has been selected by the ... operations support, as well as recruiting and sales ... for Type 2 diabetes. inVentiv ...
... Nov. 14, 2011 Nile Therapeutics, Inc. (OTCQB: NLTX), ... failure patients, today announced its third quarter financial results ... of 2011, Nile reported research and development collaboration income ... as compared to none in the third quarter of ...
Cached Biology Technology:Pharmasset Reports Fiscal Year End 2011 Financial Results 2Pharmasset Reports Fiscal Year End 2011 Financial Results 3Pharmasset Reports Fiscal Year End 2011 Financial Results 4Pharmasset Reports Fiscal Year End 2011 Financial Results 5Pharmasset Reports Fiscal Year End 2011 Financial Results 6Pharmasset Reports Fiscal Year End 2011 Financial Results 7Pharmasset Reports Fiscal Year End 2011 Financial Results 8inVentiv Health Selected to Provide Sales Operations Support for Santarus 2inVentiv Health Selected to Provide Sales Operations Support for Santarus 3inVentiv Health Selected to Provide Sales Operations Support for Santarus 4Nile Therapeutics Reports 2011 Third Quarter Financial Results 2Nile Therapeutics Reports 2011 Third Quarter Financial Results 3Nile Therapeutics Reports 2011 Third Quarter Financial Results 4Nile Therapeutics Reports 2011 Third Quarter Financial Results 5
ANTI-RAT ADHESION MARKERS, CDs, CYTOKINES, ETC Rat ICAM PE - Mouse IgG1...
Mouse monoclonal [050-04] to C2 ( Abpromise for all tested applications). entrezGeneID: 717 SwissProtID: P06681...
Reacts with methylated DNA from plants and vertebrates...
Rabbit polyclonal to Bag5 ( Abpromise for all tested applications). entrezGeneID: 9529 SwissProtID: Q9UL15...
Biology Products: