Navigation Links
UBC researcher discovers ancient 'stress hormone' in pre-historic fish
Date:7/22/2010

A University of British Columbia zoologist has discovered a new corticosteroid hormone in the sea lamprey, an eel-like fish and one of the earliest vertebrates dating back 500 million years. These findings have shed light on the evolution of steroid hormones and may help conservation and management efforts for lampreys.

"This new discovery has significant scientific implications and application for lamprey conservation," says principal investigator and lead author David Close, an assistant professor in the UBC Department of Zoology and director of the Aboriginal Fisheries Research Unit at UBC's Fisheries Centre.

Close and colleagues at Michigan State University identified a corticosteroid hormone called 11-deoxycortisol in the sea lamprey that plays dual roles in balancing ions and regulating stresses, similar to aldosterone and cortisol in humans. The findings are published online this week in the Proceedings of National Academy of Sciences Early Edition.

Native to the Pacific Coast of North America and Asia, Pacific lampreys are an important ceremonial and subsistence food for Aboriginal peoples in the Columbia River basin. They are born in freshwater, swim out to the ocean as adults and return to freshwater to reproduce in similar habitats to Pacific salmon and trout. Adult lampreys can grow to approximately 75 cm long and use their sucker-like mouth to attach to other fish while in the ocean.

NB: Images of the Pacific lamprey and Prof. Close are available at http://www.publicaffairs.ubc.ca/2010/07/22/mr-10-105/.

"The origin of the corticosteroid signaling pathway has remained controversial over the past several decades because the identity of the ancestral corticosteroid has been elusive," says Close.

"This discovery will help us better assess environmental and other stress factors on lamprey species and provide insight into how stress-regulating hormones evolved from the earliest of vertebrates," says Close, a member of the Cayuse Nation on the Confederated Tribes of the Umatilla Indian Reservation in the Pacific Northwest.


'/>"/>

Contact: Brian Lin
brian.lin@ubc.ca
604-822-2234
University of British Columbia
Source:Eurekalert

Related biology news :

1. Wistar Institute researcher receives New Innovator award from NIH
2. NC State researchers get to root of parasite genome
3. Researchers find animal with ability to survive climate change
4. Researchers find an essential gene for forming ears of corn
5. Researchers note differences between people and animals on calorie restriction
6. Researcher working on destruction of chemical weapons
7. Researchers study acoustic communication in deep-sea fish
8. Researchers discover that growing up too fast may mean dying young in honey bees
9. Researchers study how pistachios may improve heart health
10. UI researchers find potentially toxic substance present in Chicago air
11. Researchers develop new self-training gene prediction program for fungi
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:6/14/2017)... IBM ) is introducing several innovative partner startups at ... between startups and global businesses, taking place in ... startups will showcase the solutions they have built with IBM ... France is one of the most ... increase in the number of startups created between 2012 and ...
(Date:5/16/2017)... 2017  Veratad Technologies, LLC ( www.veratad.com ), an ... identity verification solutions, announced today they will participate as ... 15 thru May 17, 2017, in Washington ... Center. Identity impacts the lives of ... quickly evolving digital world, defining identity is critical to ...
(Date:5/6/2017)... 2017 RAM Group , Singaporean ... breakthrough in biometric authentication based on a ... to perform biometric authentication. These new sensors are based ... by Ram Group and its partners. This sensor will ... chains and security. Ram Group is a next ...
Breaking Biology News(10 mins):
(Date:10/11/2017)... Md. (PRWEB) , ... October 11, 2017 , ... ... digital pathology, announced today it will be hosting a Webinar titled, “Pathology is ... Advanced Pathology Associates , on digital pathology adoption best practices and how Proscia ...
(Date:10/11/2017)... ... October 11, 2017 , ... ... has granted orphan drug designation to SBT-100, its novel anti-STAT3 (Signal Transducer and ... of osteosarcoma. SBT-100 is able to cross the cell membrane and bind intracellular ...
(Date:10/10/2017)... , Oct. 10, 2017 International research firm Parks ... Strategy, will speak at the TMA 2017 Annual Meeting , October ... trends in the residential home security market and how smart safety and ... Parks ... "The residential ...
(Date:10/9/2017)... ... ... The award-winning American Farmer television series will feature 3 Bar Biologics in an ... on RFD-TV. , With global population estimates nearing ten billion people by 2050, ... a growing nation. At the same time, many of our valuable resources are becoming ...
Breaking Biology Technology: