Navigation Links
Marine organisms with eternal life can solve the riddle of aging
Date:4/20/2011

Animals that reproduce asexually by somatic cloning have special mechanisms that delay ageing provide exceptionally good health. Scientists at the University of Gothenburg have shown how colony-forming ascidians (or sea squirts) can activate the enzyme telomerase, which protects DNA. This enzyme is more active also in humans who attain an advanced age.

"Animals that clone themselves, in which part of an individual's body is passes on to the next generations, have particularly interesting conditions related to remaining in good health to persist. This makes it useful to study these animals in order to understand mechanisms of ageing in humans", says Helen Nilsson Skld of the Department of Marine Ecology, University of Gothenburg.

There are enormous differences in the lengths of life of the Earth's species. Some animals and plants that reproduce asexually can in principle achieve essentially eternal life; there are examples of deep-sea corals that are tens of thousands of years old. Helen Nilsson Skld has decided to study sea squirts and starfish, which are species whose genes resemble closely those of humans.

"My research has shown that sea squirts rejuvenate themselves by activating the enzyme telomerase, and in this way extending their chromosomes and protecting their DNA. They also have a special ability to discard 'junk' from their cells. Older parts of the animal are quite simply broken down, and are then partially recycled when new and healthy parts grow out from the adult bodies."

Some species of starfish reproduce asexually by tearing apart their bodies, while others reproduce sexually only. This makes them particularly interesting animals to study. Both types of starfish can reconstruct lost body parts, but the species that reproduce asexually have considerably better health.

However, one consequence of asexual reproduction is that the species as a whole will have a very low genetic variation. This means that
'/>"/>

Contact: Helen Nilsson Skld
helen.skold@marecol.gu.se
46-052-318-529
University of Gothenburg
Source:Eurekalert  

Page: 1 2

Related biology news :

1. VIMS study: Propeller turbulence may affect marine food webs
2. Studies of marine animals aim to help prevent rejection of transplanted organs
3. Death -- not just life -- important link in marine ecosystems
4. Human impacts on the marine ecosystems of Antarctica
5. New device uses submarine technology to diagnose stroke quickly
6. Algae, bacteria hogged oxygen after ancient mass extinction, slowed marine life recovery
7. Ecological scorecards to help assess status, trends in North Americas marine protected areas
8. A research study analyzes marine spill prevention policies in Spain
9. MBARI and Monterey Bay National Marine Sanctuary to study effects of shipping containers lost at sea
10. New study shows marine networks can protect fish stocks
11. Semporna may have richest marine biodiversity in the world
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Marine organisms with eternal life can solve the riddle of aging
(Date:12/19/2014)... , Dec. 18, 2014  23andMe, Inc., the ... a study that pinpoints fine-scale differences in genetic ancestry ... . Since immigrants first arrived more ... States has served as a meeting place ... American history and the ongoing mixing of peoples with ...
(Date:12/17/2014)... 2014 The Defense Logistics Agency is ... detect and prevent counterfeit microcircuits from entering into ... started performing an in-house microcircuit anti-counterfeit initiative dubbed ... of purchased microcircuits while increasing their reliability throughout ... will be conducted at DLA,s Electronics Product Test ...
(Date:12/17/2014)... 2014 Research and Markets ( ... "Global Chemical Sensor Market 2015-2019" report ... http://photos.prnewswire.com/prnh/20130307/600769 One major trend upcoming ... medical sensors in biomedical applications. Chemical sensors help ... correct diagnosis during surgical procedures. The Global Chemical ...
Breaking Biology News(10 mins):23andMe Study Sketches Genetic Portrait of the United States 223andMe Study Sketches Genetic Portrait of the United States 323andMe Study Sketches Genetic Portrait of the United States 4Defense Logistics Agency Launches DNA Marking Capability to Strengthen Microcircuit Supply Chain 2Defense Logistics Agency Launches DNA Marking Capability to Strengthen Microcircuit Supply Chain 3Global Chemical Sensor Market 2015-2019: Key Vendors are Abbott Laboratories, Bayer, Hoffmann La-Roche, Johnson & Johnson, NGK Spark Plugs and Robert Bosch 2
... ice formation occurred in the Arctic earlier than previously ... week in Nature . "The results are also ... in the Arctic before it did in Antarctica, which ... Richard Pearce of the University of Southampton,s School of ...
... 14, 2009 -- The stress of rising natural gas prices ... homes. For some this means moving towards modern alternative ... traditional method for a solution to these rising costs. ... been reevaluated as a potentially viable option for home heating. ...
... Va.The Journal of Vascular and Interventional Radiology ,s quality ... years, and the increase in its impact factor to 2.217 ... radiology, nuclear medicine and medical imaging journals, according to results ... continues to see a rise in its impact, the Society ...
Cached Biology News:Early initiation of Arctic sea-ice formation 2Early initiation of Arctic sea-ice formation 3Wood stoves -- a viable home heat source? 2Journal of Vascular and Interventional Radiology increases impact, international reach 2Journal of Vascular and Interventional Radiology increases impact, international reach 3
(Date:12/24/2014)... 24, 2014 The report expects global ... by 2019. It also provides a carefully analyzed data ... challenges for the market. , Full Copy of Report ... the global market for cell expansion will keep witnessing ... expects this growth to be driven by rapid technological ...
(Date:12/24/2014)... , Dec. 23, 2014 Sigma-Aldrich ... that the waiting period under the Hart-Scott-Rodino Antitrust ... acquisition expired on December 22, 2014, thereby completing ... requirement for the acquisition of the Company by ... antitrust clearance satisfies another condition to closing the ...
(Date:12/22/2014)... 22, 2014 /PRNewswire/ - RepliCel Life Sciences Inc. (OTCQB: ... focused on the development of autologous cell therapies, announced ... University of Calgary in conjunction with co-authors from Kyoto ... validates the company,s ongoing clinical research using dermal sheath ... baldness. The paper entitled " Hair Follicle ...
(Date:12/22/2014)... (PRWEB) December 22, 2014 ITRA Global, ... and occupiers of commercial real estate, has further expanded ... offices in Perth and Brisbane, Western Australia, reports Mylinda ... directors. , ITRA Global / ACORPP (Australian Corporate ... independent consultancy company providing property services to a wide ...
Breaking Biology Technology:The Cell Expansion Market is Expected to Reach $14.8 billion by 2019 - New Research Report by MarketsandMarkets 2The Cell Expansion Market is Expected to Reach $14.8 billion by 2019 - New Research Report by MarketsandMarkets 3Acquisition of Sigma-Aldrich by Merck KGaA, Darmstadt, Germany, Receives U.S. Antitrust Clearance 2Acquisition of Sigma-Aldrich by Merck KGaA, Darmstadt, Germany, Receives U.S. Antitrust Clearance 3Newly Released Peer-Reviewed Publication Further Validates RepliCel's Use of Dermal Sheath Cup Cells to Treat Pattern Baldness 2Newly Released Peer-Reviewed Publication Further Validates RepliCel's Use of Dermal Sheath Cup Cells to Treat Pattern Baldness 3Newly Released Peer-Reviewed Publication Further Validates RepliCel's Use of Dermal Sheath Cup Cells to Treat Pattern Baldness 4Newly Released Peer-Reviewed Publication Further Validates RepliCel's Use of Dermal Sheath Cup Cells to Treat Pattern Baldness 5ITRA Global Continues International Expansion in Perth and Brisbane, Australia 2
... Md., Oct. 23 United,Therapeutics Corporation (Nasdaq: ... 2008 third quarter financial results before market open ... host a half-hour teleconference on Thursday,October 30, 2008, ... by dialing 1-800-603-1777, with international callers dialing,1-706-679-8129. A ...
... Soliris(R) in U.S. and Europe, Reported Net Sales ... Quarter Shipments, Company Revises Revenue Guidance Upward and ... 2008, Pipeline Progress in Hematology, Oncology, Transplant, Neurology, ... (eculizumab) net product sales of $76.5 million in Q3,2008 ...
... TheBrain,s dynamic interface enhances Web community and presence by visualizing ... , ... Marina del Rey, CA (PRWEB) ... software, announces that MedTechIQ has published several "Bioinfomediary Brains", on ...
Cached Biology Technology:Alexion Reports Third Quarter 2008 Results 2Alexion Reports Third Quarter 2008 Results 3Alexion Reports Third Quarter 2008 Results 4Alexion Reports Third Quarter 2008 Results 5Alexion Reports Third Quarter 2008 Results 6Alexion Reports Third Quarter 2008 Results 7Alexion Reports Third Quarter 2008 Results 8Alexion Reports Third Quarter 2008 Results 9Alexion Reports Third Quarter 2008 Results 10Alexion Reports Third Quarter 2008 Results 11Alexion Reports Third Quarter 2008 Results 12Alexion Reports Third Quarter 2008 Results 13Alexion Reports Third Quarter 2008 Results 14MedTechIQ Selects TheBrain to Visualize Expansive Biointellingence Database and Connect the Dots Between Life Sciences, Medicine and Venture Capital 2MedTechIQ Selects TheBrain to Visualize Expansive Biointellingence Database and Connect the Dots Between Life Sciences, Medicine and Venture Capital 3MedTechIQ Selects TheBrain to Visualize Expansive Biointellingence Database and Connect the Dots Between Life Sciences, Medicine and Venture Capital 4
No description available in Ensembl Antigen: Recombinant Protein Epitope Signature Tag (PrEST)....
15(S)-HETE-d8 is used as an internal standard for the quantification of 15(S)-HETE by stable isotope dilution mass spectrometry....
...
...
Biology Products: