HOME >> BIOLOGY >> NEWS
Hearts of male and female rainbow trout are different

WASHINGTON -- The heart is one of the most energy demanding organs of the human body. Its failure to function properly accounts for 600,000 deaths each year. Similarly, the rainbow trout, native to the Pacific Northwest and beloved as a sport- and food fish, requires dynamic and sustained cardiac function to maintain its health and swimming activity.

Previous studies of trout cardiac performance and energy metabolism have been conducted under hypoxic (oxygen shortage) conditions, but gender was not specifically examined. Nor were comparisons made between male and female fish (the largest group of vertebrates) made. There is a growing appreciation of significant sex differences in cardiac characteristics and function in adult humans. A new research study begins to close the gender gap in fishes, and finds that sex differences in cardiac performance and metabolism exist in rainbow trout. These differences occur at a young age and are only realized when the trout heart is contracting and not under resting conditions.

The study is entitled Sex Differences in Cardiac Glucose Metabolism and Function in Immature Rainbow Trout (Oncorhynchus mykiss). It was conducted by Pavan K. Battiprolu, Adam C. Goddard and Kenneth J. Rodnick, all of the Department of Biological Sciences, Idaho State University, Pocatello, Idaho. Dr. Rodnick's laboratory is presenting the team's findings at the 120th American Physiological Society (APS; www.the-APS.org) annual meeting, which is being held as part of the Experimental Biology (EB '07) conference. More than 12,000 scientific researchers will attend the gathering being held April 28-May 2, 2007 at the Washington, DC Convention Center.

The Study

The researchers examined if two regulatory molecules found in the fish heart -- citrate (an acid which inhibits the glycolytic metabolic pathway) and pyruvate dehydrogenase (PDH), the enzyme allowing carbohydrates t
'"/>

Contact: Donna Krupa
DKrupa@the-APS.org
301-634-7209
American Physiological Society
30-Apr-2007


Page: 1 2 3

Related biology news :

1. Hearts or tails?
2. Cardio exercise benefits in male vs. female hearts
3. The female advantage in kidney disease does not extend to diabetic women
4. Disabling a sensory organ prompts female mice to act like male mice
5. A sensory organ, not the brain, differentiates male and female behavior in some mammals
6. MGH researchers confirm that bone marrow restores fertility in female mice
7. Male or female factor infertility -- men suffer just the same
8. CU study reveals why starling females cheat
9. Philandering female felines forgo fidelity
10. Update on census of wrlds most endangered cat -- female Amur leopard found dead
11. The sturdier sex? -- Study by Pittsburgh scientists finds female stem cells work better

Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Hearts male and female rainbow trout are different

(Date:4/23/2014)... contribute to early fetal death according to a new ... Children,s Hospital Los Angeles and Ulaanbaatar, Mongolia the ... paper published today in the journal BMC Pregnancy ... between seasonal ambient air pollutants and pregnancy loss in ... the highest levels of air pollution of all world ...
(Date:4/23/2014)... Like a hungry diner ripping open a dinner roll, ... must tear open a hydrogen molecule. Now researchers have ... the two halves of its hydrogen feast. The view ... make the catalyst work better for alternative energy uses. ... shown precisely where the hydrogen halves end up in ...
(Date:4/23/2014)... research shows that male black widow spiders prefer their ... example of mate preference by male spiders. ... and Maydianne Andrade, a professor in UTSC,s Department of ... the wild that males overwhelmingly chose to mate with ... can tell whether a potential mate is well-fed and ...
Breaking Biology News(10 mins):Pollutants from coal-burning stoves strongly associated with miscarriages in Mongolia 2Halving hydrogen 2Halving hydrogen 3Halving hydrogen 4Picky male black widow spiders prefer well-fed virgins 2
(Date:1/14/2014)... 14, 2014 EquitiesIQ, a leading informational ... ALQA). Alliqua is an emerging biomedical company acquiring, developing, ... care market. , Free report download: http://equitiesiq.com/reports/alliqua/ ... seasoned management team and Board, which launched the company’s ...
(Date:1/14/2014)... BETHESDA, Md. , Jan. 14, 2014  Organovo ... institutes from the National Institutes of Health (NIH) to ... more effective treatments to patients on a faster timeline. ... Translational Sciences (NCATS) and the National Eye Institute (NEI) ...
(Date:1/14/2014)... 2014 In recent years, growing suspicion ... in product development and promotion has led to unprecedented ... fueled by concerns about the insidious impact of commercialization ... spectacular fines to the world’s biggest pharmas for illegal ...
(Date:1/14/2014)... Rockville, MD (PRWEB) January 14, 2014 ... dedicated to developing innovative information technology solutions for ... other health care stakeholders, announced today the signing ... the US Food and Drug Administration (FDA). ...
Breaking Biology Technology:EquitiesIQ Initiates Coverage of Alliqua, Inc. 2EquitiesIQ Initiates Coverage of Alliqua, Inc. 3Organovo Announces Collaboration with National Institutes of Health 2Organovo Announces Collaboration with National Institutes of Health 3The Sunshine Act: Necessary Regulation or Unnecessary Dysregulation? New Life Science Webinar Hosted by Xtalks and IRB Services 2The Sunshine Act: Necessary Regulation or Unnecessary Dysregulation? New Life Science Webinar Hosted by Xtalks and IRB Services 3Global Record Systems Announces Research Collaboration Agreement with FDA to Create a Novel “Big Data” Paradigm for Collection of Patient Safety and Outcomes Information 2
Cached News: