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  

0

GOOD

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:5/21/2013)... 21, 2013 Royal Philips Electronics (NYSE: PHG, ... first portable ultrasound with Philips, industry leading Live 3D ... CX50 xMATRIX with available Live 3D TEE and ICE ... at the EuroPCR, official meeting for the European Association ... Since its launch in 2012, Philips CX50 xMATRIX has ...
(Date:5/21/2013)... the way genes function without changing the underlying ... blood of pregnant women during any trimester, potentially ... the weeks after giving birth, and an opportunity ... findings of the small study involving 52 pregnant ... Molecular Psychiatry . , "Postpartum depression can be ...
(Date:5/20/2013)... also commonly resistant to antimicrobial substances made by ... mBio , the online open-access journal of ... and host antimicrobials LL-37 and lysozyme, which help ... that patients with life-threatening multi-drug resistant infections are ... is a last-line drug for treating several kinds ...
Breaking Biology News(10 mins):Philips CX50 xMATRIX now offers world-class interventional and diagnostic features on single portable system 2Genetic predictors of postpartum depression uncovered by Hopkins researchers 2Genetic predictors of postpartum depression uncovered by Hopkins researchers 3Resistance to last-line antibiotic makes bacteria resistant to immune system 2Resistance to last-line antibiotic makes bacteria resistant to immune system 3
... "Basic science and clinical medicine move at different pace ... strategies to manage cancer patients. We need to efficiently translate ... in the clinic." Sherene Loi and Fabrice Andr, ... four major areas: , Molecular pathology, the roots ...
... award-winning research project, funded by the British Heart Foundation (BHF), ... how doctors predict a patient,s risk of having a heart ... a BHF Centre of Research Excellence, in collaboration with the ... of combining PET and CT scanning to image the disease ...
... Mass. A team of kinesiology researchers led by ... recently received a 2.5-year, $975,000 grant through the Navy ... study how the average 100-lb. equipment load carried by ... affects their survivability, likelihood of injury and ability to ...
Cached Biology News:Fourth IMPAKT Breast Cancer Conference 2Fourth IMPAKT Breast Cancer Conference 3Scientists develop new technique that could improve heart attack prediction 2Kinesiology team gets $975,000 Defense grant to study effects of heavy loads on soldiers 2
(Date:5/21/2013)... 2013 Smarter Security, Inc., provider of ... announced that Genzyme, a Sanofi company and leading biotech ... CL for a multi-use facility in the United States. ... Genzyme buildings, this latest order underscores the satisfaction and ... detection device improving doorway access control. , ...
(Date:5/21/2013)... FL (PRWEB) May 21, 2013 Many ... breakouts as contributor to acne. Recently physicians from ... of mental stress on the skin, and suggested using ... help reduce the chemicals produced from stress that cause ... from the negative feelings acne brings about, stress causes ...
(Date:5/21/2013)...  Synthetic Biologics, Inc. (NYSE MKT: SYN), a developer of ... diseases, announced today that Jeffrey Riley , ... LLP MicroCap Conference on Thursday, May 30, 2013 in ... Hotel. Mr. Riley is scheduled to present at 10:00 a.m. ... presentation can be accessed by logging onto the web at ...
(Date:5/21/2013)... Minneapolis, MN (PRWEB) May 21, 2013 ... a patented automatic colony counter, announced today that they ... four products , the IncuCount, IntelliCount, InCount and ... price and sophistication are especially useful in food microbiology ... been given an updated look. A bright white ...
Breaking Biology Technology:Door Security at Genzyme, a Sanofi Company, Enhanced with Door Detective from Smarter Security 2Door Security at Genzyme, a Sanofi Company, Enhanced with Door Detective from Smarter Security 3Adult Acne Treatment, Probiotic Action Explains How Hypnotherapy and Probiotics May Cure Various Skin Conditions 2Synthetic Biologics to Present at the 2nd Annual Marcum LLP MicroCap Conference 2Revolutionary Science Announces New Automatic and Manual Colony Counting Products 2
... Oncolytics Biotech Inc.,("Oncolytics") (TSX:ONC, NASDAQ:ONCY) announced today ... review, the Company is initiating a U.S.,Phase ... REOLYSIN(R) in,combination with paclitaxel and carboplatin in ... K-RAS or EGFR-activated tumours. The Principal,Investigator is ...
... /PRNewswire-FirstCall/ - OncoGenex,Pharmaceuticals, Inc. (NASDAQ: OGXI ... that it has granted to Eagle Pharmaceuticals, ... commercialize TOCOSOL(R),Paclitaxel. Under the terms of the ... from future TOCOSOL Paclitaxel sales and a,percentage ...
... Germany, Sept. 1 ,Boston Scientific Corporation (NYSE: ... its landmark SYNTAX trial comparing percutaneous coronary ... Stent,System to contemporary coronary artery bypass graft ... significant differences,between PCI and CABG in rates ...
Cached Biology Technology:/R E P E A T -- Oncolytics Biotech Inc. Announces U.S. Phase 2 Combination Clinical Trial for Non-Small Cell Lung Cancer Patients with K-RAS or EGFR-Activated Tumours/ 2/R E P E A T -- Oncolytics Biotech Inc. Announces U.S. Phase 2 Combination Clinical Trial for Non-Small Cell Lung Cancer Patients with K-RAS or EGFR-Activated Tumours/ 3/R E P E A T -- Oncolytics Biotech Inc. Announces U.S. Phase 2 Combination Clinical Trial for Non-Small Cell Lung Cancer Patients with K-RAS or EGFR-Activated Tumours/ 4OncoGenex Pharmaceuticals announces out-license of TOCOSOL Paclitaxel to Eagle Pharmaceuticals 2OncoGenex Pharmaceuticals announces out-license of TOCOSOL Paclitaxel to Eagle Pharmaceuticals 3Landmark SYNTAX Trial Reports Comparable Safety Outcomes for Complex Patients Treated With TAXUS(R) Express2(TM) Stents or Bypass Surgery 2Landmark SYNTAX Trial Reports Comparable Safety Outcomes for Complex Patients Treated With TAXUS(R) Express2(TM) Stents or Bypass Surgery 3Landmark SYNTAX Trial Reports Comparable Safety Outcomes for Complex Patients Treated With TAXUS(R) Express2(TM) Stents or Bypass Surgery 4Landmark SYNTAX Trial Reports Comparable Safety Outcomes for Complex Patients Treated With TAXUS(R) Express2(TM) Stents or Bypass Surgery 5
... coating using advanced automated high throughput microplate processing equipment that ... also accommodate virtually any lot size of the following formats ... 8 and 12 well strips, ... 384 well microplate, ...
...
... Mynox is the first biological ... killing them, and not just ... the only anti-mycoplasma agent that ... virus stocks directly. The cytotoxicity ...
Mynox is intended for research use only. Mynox is used for the elimination of Mycoplasma and Acholeplasma in cell and virus cultures, and other biologicals....
Biology Products: