Navigation Links
How nutrition affects healthy aging
Date:12/4/2009

This release is available in German.

A new study of the Max Planck Institute for Biology of Ageing could help to understand the positive effect of dietary restriction on healthy ageing. Previous evidence from different organisms (fruit flies and mice) have shown that dietary restriction increases longevity, but with a potential negative side effect of diminished fertility. So the female fruit fly reproduces less frequently with a reduced litter size on a low calorie diet, but its reproductive span lasts longer. This is the result of an evolutionary trait, as scientists believe: essential nutrients are diverted towards survival instead of reproduction. (Nature, December 3, 2009)

Researchers from the newly founded Max Planck Institute for Biology of Ageing in Cologne have studied whether health benefit stem from a reduction in specific nutrients or calorie intake in general by manipulating the diet of female fruit flies. The fruit flies were fed a diet of yeast, sugar and water, but with differing amounts of key nutrients, such as vitamins, lipids and amino acids. The scientists were able to show that longevity and fertility are affected by a combination of the type and amount of amino acids; whilst varying the amount of the other nutrients had little or no effect. Furthermore, the researchers found out in previous studies that levels of a particular amino acid - methionine - were crucial to increasing lifespan without decreasing fertility. By carefully manipulating the balance of amino acids, both lifespan and fertility were maximised. For the first time, this indicates that it is possible to extend lifespan without wholesale dietary restriction and without lowering reproductive capacity.

As the effects of dietary restriction on lifespan is evolutionary conserved - observed in different organisms - researchers believe that the essential mechanisms apply to it as well. Even though the human genome has about four times the number of genes as the fruit fly genome, there are many similarities on a genetic level, allowing these results to be of significance for humans as well.


'/>"/>

Contact: Katharina Mller
KMoeller@age.mpg.de
49-221-472-6311
Max-Planck-Gesellschaft
Source:Eurekalert

Related biology news :

1. Purdue researchers click nutrition with camera diet study
2. Leading experts cite poor health and nutrition as major barrier to education in developing world
3. 3 out of 4 hospital patients suffer from malnutrition regardless of their pathology
4. U of I scientist does nutritional detective work in Botswana
5. For nutrition info, moms like the Web best
6. Scientists study the link between childrens nutrition and adult diseases
7. New way to produce high-vitamin corn could improve nutrition in developing countries
8. Nutrition research unveiled this week shows pistachios are smart for the heart
9. Statement by the American Egg Board and Egg Nutrition Center on AJCN study on egg consumption
10. Domestic violence associated with chronic malnutrition in women and children in India
11. SAGE launches new journal -- ICAN: Infant, Child, & Adolescent Nutrition
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/11/2017)... Research and Markets has announced the addition of the ... ... grow at a CAGR of 30.37% during the period 2017-2021. ... prepared based on an in-depth market analysis with inputs from industry ... over the coming years. The report also includes a discussion of ...
(Date:4/11/2017)... 2017 NXT-ID, Inc. (NASDAQ:   NXTD ... the appointment of independent Directors Mr. Robin D. Richards ... of Directors, furthering the company,s corporate governance and expertise. ... Gino Pereira , Chief ... to their guidance and benefiting from their considerable expertise as ...
(Date:4/5/2017)... April 5, 2017  The Allen Institute for Cell ... Explorer: a one-of-a-kind portal and dynamic digital window into ... data, the first application of deep learning to create ... cell lines and a growing suite of powerful tools. ... these and future publicly available resources created and shared ...
Breaking Biology News(10 mins):
(Date:10/11/2017)... ... October 11, 2017 , ... ... granted orphan drug designation to SBT-100, its novel anti-STAT3 (Signal Transducer and Activator ... osteosarcoma. SBT-100 is able to cross the cell membrane and bind intracellular STAT3 ...
(Date:10/10/2017)... ... 2017 , ... For the second time in three years, ... Award. Representatives of the FirstHand program travelled to Washington, D.C. Tuesday, October 10th, ... mission is to change the trajectory of STEM education in America by dramatically ...
(Date:10/10/2017)... , Oct. 10, 2017 SomaGenics announced ... the NIH to develop RealSeq®-SC (Single Cell), expected to ... profiling small RNAs (including microRNAs) from single cells using ... highlights the need to accelerate development of approaches to ... "New techniques for measuring levels of ...
(Date:10/9/2017)... 9, 2017  BioTech Holdings announced today identification ... its ProCell stem cell therapy prevents limb loss ... Company, demonstrated that treatment with ProCell resulted in ... as compared to standard bone marrow stem cell ... in reduction of therapeutic effect.  ...
Breaking Biology Technology: