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:10/16/2014)... Post-menopausal women experienced improvements in vaginal atrophy, with ... bleeding, after 12 weeks of daily 10 milligram ... nutritional supplement previously shown to help relieve certain ... study reported in a poster at the North ... , "These data documented improved vaginal epithelium, without ...
(Date:10/15/2014)... book ,Models of Life, is a non-traditional biophysics textbook ... The book is a journey of discovery into biological ... life and biological regulation. It is about how our ... communication between the billions of cells in an organism. ... relationships between principles, which can be found on both ...
(Date:10/15/2014)... Oct. 15, 2014 NXT-ID, Inc. (NASDAQ: NXTD ... focused on the growing mobile commerce market releases photos and video ... Square on Monday October 13 th . ... Tunnel and angel investor Mr. Chad A. Verdi ... of NXT-ID thanked his investors and employees "for their work and ...
Breaking Biology News(10 mins):S-equol supplements associated with improved measures of reproductive health in postmenopausal women 2New book about life as seen from physics 2Photo Release: NXT-ID Inc. Rings Opening Bell of the NASDAQ Stock Market October 13th 2Photo Release: NXT-ID Inc. Rings Opening Bell of the NASDAQ Stock Market October 13th 3
... you ever met a cat that doesn't go crazy over ... the world don't respond to it at all, according to ... of Chemical & Engineering News, the weekly newsmagazine published by ... Catnip sensitivity is inherited, says Carolyn M. McDaniel, a veterinarian ...
... Florida researchers say they are a step closer to ... cancers before symptoms become apparent. , The findings, currently ... Sciences, involve introducing molecularly engineered strands of DNA into ... burst after they adhere to cancer proteins. , ...
... the gene responsible for controlling a first key step in ... in the journal Nature tomorrow (Thursday 27 October 2005). , ... take place once a sperm enters an egg, giving it ... reproducing animals. , The absence or mutation of this gene ...
Cached Biology News:Many cats unaffected by catnip, C&EN reports 2Scientists closer to new cancer detection method 2Scientists closer to new cancer detection method 3Scientists unpick genetics of first 15 minutes of life 2
(Date:10/22/2014)... 2014 Shimadzu Scientific Instruments introduces its ... for the pain management and clinical markets. The software ... review by allowing users to highlight and review results ... QuantAnalytics allows analysts to filter results by group or ... by eliminating the need to sift through analytes of ...
(Date:10/22/2014)... Cranford, NJ (PRWEB) October 22, 2014 ... technologies and services – has been working with a ... Health and New Haven Farms Community Farming Collaborative to ... iPad-based ePRO solution. The study, which started in ... Wellness program that provides participants weekly exposure to and ...
(Date:10/22/2014)... (PRWEB) October 22, 2014 Grace Century, ... and healthcare projects, announces the addition of Dr. ... to its advisory team. Dr. Siddiqui will provide further ... , A graduate of University College Medical School ... degreed in medicine in 2001. With further certification as ...
(Date:10/22/2014)... (PRWEB) October 22, 2014 According ... Market by Service Type (Consulting, Integration, Deployment & ... by Deployment Model (Public, Private, Others (Hybrid & ... MarketsandMarkets, defines and segments the Cloud Professional Services ... and forecasting of revenues. It also identifies the ...
Breaking Biology Technology:Shimadzu Releases QuantAnalytics Open Access LCMS Software Package for Clinical Applications 2myPROpad™ Topic of Panel Discussion at the Yale Food Systems Symposium 2myPROpad™ Topic of Panel Discussion at the Yale Food Systems Symposium 3Dr. Yousef Siddiqui joins the Grace Century Advisory Team 2Cloud Professional Services Market by Public, Private, Hybrid & Community Expected to Reach $34.41 Billion by 2019 - New Report by MarketsandMarkets 2Cloud Professional Services Market by Public, Private, Hybrid & Community Expected to Reach $34.41 Billion by 2019 - New Report by MarketsandMarkets 3Cloud Professional Services Market by Public, Private, Hybrid & Community Expected to Reach $34.41 Billion by 2019 - New Report by MarketsandMarkets 4Cloud Professional Services Market by Public, Private, Hybrid & Community Expected to Reach $34.41 Billion by 2019 - New Report by MarketsandMarkets 5
... Nov. 25 RSNA Booth # 6221 -- Varian,Medical Systems ... product that makes it,easier for clinicians to store, manage and ... new OncoView(TM) image management and,storage solution at the Radiological Society ... 4, 2008. , "OncoView ...
... Sunesis Pharmaceuticals, Inc. (Nasdaq: SNSS ), a biopharmaceutical company ... the treatment of solid and hematologic cancers, today announced that the ... month of December: , , ... , The New York Palace Hotel, New York ...
... Inc. (Nasdaq: GXDX ), a specialized laboratory services provider, ... Healthcare Conference scheduled to take place at the New York Palace ... , , Dr. Tina S. Nova, ... Wednesday, December 3, beginning at approximately 2:00 p.m. EST. Dr. ...
Cached Biology Technology:Varian Medical Systems Introducing OncoView(TM) - an Oncology Specific Image Management and Storage Solution 2Varian Medical Systems Introducing OncoView(TM) - an Oncology Specific Image Management and Storage Solution 3Sunesis to Present at Upcoming Conferences 2Genoptix Announces Participation at the Twentieth Annual Piper Jaffray Healthcare Conference 2
... system automates the denaturation and hybridization steps ... convenience for clinical and research personnel. The ... of sample types, is easy to use, ... 50% while ensuring overall precision and accuracy ...
... fluorescent nucleic acid dye which binds only ... nuclear counterstain, propidium iodide stains the nucleus ... The fluorescent red color provides excellent contrast ... FITC, Cy2 or AMCA. Propidium Iodide ...
... Mouse RAW 264. 7 cells were cultured ... harvested at the log phase of growth. ... native forms, cells were fixed in acetone-methanol. ... mm) adhesive coated slide, with each wells surface ...
... Mouse P815 cells were cultured in DMEM ... In order to keep the antigens in ... The cells are arrayed on a 12-well ... surface specifically treated to enhance cellular attachment and ...
Biology Products: