Navigation Links
Life experiences put their stamp on the next generation: New insights from epigenetics
Date:2/14/2013

Philadelphia, PA, February 14, 2013 The 18th century natural philosopher Jean-Baptiste Lamarck proposed that the necks of giraffes lengthened as a consequence of the cumulative effort, across generations, to reach leaves just out of their grasp. This view of evolution was largely abandoned with the advent of modern genetic theories to explain the transmission of most important traits and many medical illnesses across generations.

However, there has long been the impression that major life events, like psychological traumas, not only have effects on individuals who directly experience these events, but also have effects on their children. For example, cross-generational effects have been well-documented in the children of Nazi death camp survivors. Similar issues have been reported in the context of mood disorders and addiction. Until recently, these trans-generational effects were attributed to changes in the way that parents treated their children or the child's reaction to learning about the parent's history.

In the most recent issue of Biological Psychiatry, Swiss researchers from the University of Zurich and Swiss Federal Institute of Technology, led by Dr. Isabelle Mansuy, discuss how the emergence of the field of epigenetics has introduced a new component to this discussion the trans-generational transmission of changes in the regulation of gene expression.

"The question of the inheritance of acquired traits has puzzled biologists and clinicians for decades. Although it has been consistently observed as early as in the 18th century, the time has now come that sufficiently strong and convincing evidence has accumulated to firmly accept it," said Mansuy.

The genetic transmission of traits reflects alterations in genetic structure, i.e., the base pairs that form DNA. Epigenetics, on the other hand, involves cellular processes that do not alter the structure of DNA. Instead, epigenetic mechanisms, including the met
'/>"/>

Contact: Rhiannon Bugno
Biol.Psych@utsouthwestern.edu
214-648-0880
Elsevier
Source:Eurekalert

Page: 1 2

Related biology news :

1. Awake mental replay of past experiences critical for learning
2. World experts meet in Edinburgh to consider how life experiences impact on our genes
3. 2 servings of salmon a week is healthy for pregnant women and their babies
4. Study finds peoples niceness may reside in their genes
5. Lizard moms may prepare their babies for a stressful world
6. Deterring signals: Tobacco plants advertise their defensive readiness to attacking leafhoppers
7. Vampire jumping spiders identify victims by their antennae
8. New Tool Helps Drug Developers Optimize Their Research and Target Development for Better Results and a Stronger Competitive Edge
9. Parasitic plants steal genes from their hosts
10. Cougars are re-populating their historical range, new study confirms
11. Research: Many programs to help diabetics manage their health do work
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/10/2014)... July 1, 2014 Smart technology emphasis ... convenience and improved security: NXT-ID, Inc. (OTCBB: NXTD), eBay Inc. ... GOOG ), Apple Inc. (NASDAQ: AAPL ), Visa ... MA) NXT-ID, Inc., (OTCQB: NXTD) a biometric authentication company ... that the second series of 30 second spots on CNBC ...
(Date:7/10/2014)... Conn. , July 2, 2014 NXT-ID, Inc., (OTCQB: ... reports that CEO Mr. Gino Pereira was interviewed ... show in Tampa Florida . Mr. Pereira ... host Cedric Harris and how the Wocket™ aims ... alternative.  Cedric Harris tells Gino ...
(Date:7/10/2014)... , July 7, 2014 Fingerprint Cards, ... major design win (DW). A Chinese Top 5 smartphone OEM ... start of mass production in October 2014.   ... Top 5 smartphone OEM, which has a planned date for ... target sales volume for this phone of 3 million units. ...
Breaking Biology News(10 mins):Advantages for Digital Wallets Eliminate Need to Carry Credit Cards - Large Scale CNBC Ad Campaign for Latest Smart Wallet to Commence July 7th 2Advantages for Digital Wallets Eliminate Need to Carry Credit Cards - Large Scale CNBC Ad Campaign for Latest Smart Wallet to Commence July 7th 3Advantages for Digital Wallets Eliminate Need to Carry Credit Cards - Large Scale CNBC Ad Campaign for Latest Smart Wallet to Commence July 7th 4Advantages for Digital Wallets Eliminate Need to Carry Credit Cards - Large Scale CNBC Ad Campaign for Latest Smart Wallet to Commence July 7th 5Security and Your Money: Tampa Bay Radio Host Cedric Harris Talks to NXT-ID CEO Mr. Gino Pereira about the Wocket Smart Wallet 2Security and Your Money: Tampa Bay Radio Host Cedric Harris Talks to NXT-ID CEO Mr. Gino Pereira about the Wocket Smart Wallet 3Security and Your Money: Tampa Bay Radio Host Cedric Harris Talks to NXT-ID CEO Mr. Gino Pereira about the Wocket Smart Wallet 4FPC Wins DW for 1021 Touch Sensor for Flagship Smartphone from Chinese Top 5 Smartphone OEM 2
... can be converted to electricity, potentially providing power for sensors, ... researchers at Case Western Reserve University report. The finding ... the country that could bring the creation of insect cyborgs ... out of science fiction and into reality. In this case, ...
... In the two and a half years since Adam Bogdanove, ... Pathology and Microbiology, along with Matthew Moscou, a former graduate ... from plant pathogenic bacteria find and bind specific sequences in ... discovery. Last year it was first shown that the ...
... cost-effective, a group of researchers from National Tsing Hua University ... have created a DNA-based memory device that is "write-once-read-many-times" (WORM), ... to encode information. The device, described in a paper accepted ... a thin film of salmon DNA that has been embedded ...
Cached Biology News:Implanted biofuel cell converts bug's chemistry into electricity 2Implanted biofuel cell converts bug's chemistry into electricity 3ISU scientist helps find structure of gene-editing protein named Method of the Year 2
(Date:7/10/2014)... 2014 Senior supply chain management executives ... addressed the challenges of “Reducing Cost, Lead Time, & ... strategic sourcing. Describing the partnership of the Bio Supply ... Management Institute ( SCMI) of the University of ... at the Kroc Institute of Peace and Justice in ...
(Date:7/10/2014)... 10, 2014 Research and Markets ( ... "International Photonic Integrated Circuit (Monolithic Integration, Hybrid ... report to their offering. ... of photonic integration traces its roots in the ... of photonic integration went unexplored and unfulfilled for ...
(Date:7/10/2014)... today in the journal PNAS (Proceedings of the ... of day and sleep deprivation have a significant effect ... looking at the best time of day to test ... for administering medicines effectively. , Researchers from the University ... investigated the links between sleep deprivation, body clock disruption ...
(Date:7/10/2014)... 1960s, theatergoers have shelled out for crude 3-D ... their viewing experience. These basic devices, used to ... reality, may soon be rendered obsolete with the ... Aviv University researchers. , TAU doctoral students Yuval ... highly efficient holography based on nanoantennas that could ...
Breaking Biology Technology:Biotech & Biopharm Supply Chain Management Executives Launch BSMA in San Diego 2Biotech & Biopharm Supply Chain Management Executives Launch BSMA in San Diego 3Biotech & Biopharm Supply Chain Management Executives Launch BSMA in San Diego 4International Photonic Integrated Circuit (Monolithic Integration, Hybrid Integration, Module Integration) Market - Forecasts to 2019 2Time of day crucial to accurately test for diseases, new research finds 2Projecting a 3-dimensional future 2Projecting a 3-dimensional future 3
... the growing open source clincial trials software. This release contains ... regulated industry sponsored clinical trials. , ... ... announces the availability of OpenClinica 2.5, the popular open source ...
... Mass., Sept. 19 Boston Scientific,Corporation (NYSE: BSX ... Life,Sciences Conference, which is being held September 22 - ... Chief Executive Officer, will make a,30-minute presentation which will ... Thursday, September 25, beginning at approximately 9:00,a.m. ET., ...
... Sept. 19 Abbott (NYSE:,ABT) will announce its 2008 ... market opens., The announcement will be followed by ... a.m. Central time (9 a.m. Eastern), and will be,accessible ... An archived edition of the call will be,available after ...
Cached Biology Technology:Akaza Research Releases New Version of OpenClinica Electronic Data Capture (EDC) Software; Targets Industry Clinical Trials 2Akaza Research Releases New Version of OpenClinica Electronic Data Capture (EDC) Software; Targets Industry Clinical Trials 3
Kit for BASE20/50 dual control unit, includes mounting plate, HOLDER50T, HEATERPAD50, SRTDX temperature probe(s)....
... 10 nM is available for in ... described in: Z. Hassani, G.-F. Lemkine, P. ... and B.-A. Demeneix. Lipid-mediated siRNA delivery down ... brain at picomolar levels. J. Gene Med., ...
... The IHC Select Immunoperoxidase Secondary Detection ... rat or goat IgG in the Primary ... antigens present in the specimen. Any excess ... Secondary Antibody Reagent (conjugated to biotin) is ...
... Cellular uptake of long double stranded RNA ... interference in a diverse group of organisms ... RNA interference leads to the inhibition of ... of the target messenger RNA (mRNA). Attempts ...
Biology Products: