Epigenetics News and Research

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Epigenetics is the study of chemical reactions that influence gene expression, through activation or deactivation of genes at specific times and locations.

Twins and mothers with poor nutrition more likely to develop obesity, type 2 diabetes

If you're expecting, this might make you feel a little better about reaching for that pint of ice cream: New research published online in the FASEB Journal suggests that twins, and babies of mothers who diet around the time of conception and in early pregnancy, may have an increased risk of obesity and type 2 diabetes throughout their lives.

2 Apr 2012

TRIM28 protein essential after fertilisation to preserve epigenetic marks on imprinted genes

An international team led by scientists at A*STAR's Institute of Medical Biology (IMB) discovered that a protein, called TRIM28, normally present in the mother's egg, is essential right after fertilisation, to preserve certain chemical modifications or 'epigenetic marks' on a specific set of genes.

30 Mar 2012

Researchers generate artificial thymus tissue to enable T cell maturation

The thymus plays a key role in the body's immune response. It is here where the T lymphocytes or T cells, a major type of immune defence cells, mature. Different types of T cells, designated to perform specific tasks, arise from progenitor cells that migrate to the thymus from the bone marrow. Researchers at the Max Planck Institute of Immunology and Epigenetics in Freiburg have generated artificial thymus tissue in a mouse embryo to enable the maturation of immune cells.

30 Mar 2012

Nature journal publishes first volume of Cancer Cell Line Encyclopedia

The goal of cancer treatment is to match the right drug to the right target in the right patient. But before such "personalized" drugs can be developed, more knowledge is needed about specific genomic alterations in cancers and their sensitivity to potential therapeutic agents.

29 Mar 2012

Researchers identify DNA methylation in patients with schizophrenia

In a new study, researchers at the Swedish medical university Karolinska Institutet have identified epigenetic changes - known as DNA methylation - in the blood of patients with schizophrenia.

28 Mar 2012

Nanoscale sensor can conduct individual DNA sequencing

Researchers have devised a nanoscale sensor to electronically read the sequence of a single DNA molecule, a technique that is fast and inexpensive and could make DNA sequencing widely available.

27 Mar 2012

Obesity in later life linked to decreased mental faculties

The study found said out of 250 test subjects involving people over 59 years old, people between 60 and 70 who had the highest BMIs also had the lowest cognitive function. There was also a connection between visceral fat -- otherwise known as the belly fat around the torso - and poor mental abilities. The study, which was published in the British journal Age and Aging, measured the subjects fat-related measures including BMI, waist circumference and the amount of visceral - which could be close to organs - and subcutaneous -under the skin - fat using a abdominal CT scan. Cognitive ability was determined by a test called a Mini-Mental State Examination.

25 Mar 2012

Circadian rhythms control production of metabolites

By analyzing the hundreds of metabolic products present in the liver, researchers with the UC Irvine Center for Epigenetics & Metabolism have discovered that circadian rhythms - our own body clock - greatly control the production of such key building blocks as amino acids, carbohydrates and lipids.

20 Mar 2012

Study of genes may hold the key to improved skin care

Ever wonder why two people who are the same age may look years apart? While extrinsic factors such as sun exposure and smoking can contribute to skin aging, intrinsic factors - namely the genes inherited from our parents - can have an even greater influence on how our skin ages.

17 Mar 2012

Epigenetic designer baby may prove to be a non-starter

Epigenetics is the new hip science. Time Magazine's front cover and article, 'Why your DNA isn't your Destiny' from January 2010 explains why. Its more explicit subtitle provided the hook - 'The new science of epigenetics reveals how the choices you make can change your genes - and those of your kids'. Who wouldn't be interested in this?

16 Mar 2012

Two awards to advance pancreatic cancer research

The Pancreatic Cancer Action Network and the American Association for Cancer Research have awarded Stephanie K. Dougan, Ph.D., postdoctoral fellow at the Whitehead Institute for Biomedical Research, and Oliver G. McDonald, M.D., Ph.D., postdoctoral fellow at Johns Hopkins University, the 2012 Pancreatic Cancer Action Network-AACR Pathway to Leadership Grants.

16 Mar 2012

MDxHealth fourth quarter total revenues increase 48% to €0.9M

MDxHealth SA, a leading molecular diagnostic company that develops and commercializes epigenetic tests to support cancer treatment, today announced results for Q4 and full year 2011.

15 Mar 2012

Researchers identify epigenetic signatures within reprogrammed skin cells

A research team has identified epigenetic signatures, markers on DNA that control transient changes in gene expression, within reprogrammed skin cells.

15 Mar 2012

Researchers identify first gene mutation associated with chronic, often fatal form of neuroblastoma

Researchers have identified the first gene mutation associated with a chronic and often fatal form of neuroblastoma that typically strikes adolescents and young adults. The finding provides the first clue about the genetic basis of the long-recognized but poorly understood link between treatment outcome and age at diagnosis.

14 Mar 2012

Researchers crack problem of predicting gene targets for PcG proteins

Cancer is usually attributed to faulty genes, but growing evidence from the field of cancer epigenetics indicates a key role for the gene "silencing" proteins that stably turn genes off inside the cell nucleus. A new study from Rice University and Baylor College of Medicine promises to speed research in the field by rapidly identifying the genes that epigenetic proteins can target for silencing.

14 Mar 2012

Tranylcypromine shows promise against AML

A retinoid called all-trans retinoic acid (ATRA), which is a vitamin A-derivative, is already used successfully to treat a rare sub-type of acute myeloid leukemia (AML), however this drug has not been effective for the more common types of AMLs.

12 Mar 2012

Scientists believe that ageing can be programmed in the womb

Ageing is a complex process involving physical, psychological, and environmental factors. Scientists believe that ageing can be programmed in the womb. One example of stress during pregnancy is the administration of glucocorticoids, i. e. synthetic stress hormones to accelerate fetal lung maturation in premature labor to allow breathing after birth. Could exposure to these stress hormones have an effect on health later in life?

8 Mar 2012

Study suggests how and why high fat diets are linked to colon cancer

Epidemiologists have long warned that, in addition to causing obesity, eating too much fat and sugar puts a person at greater risk for colon cancer. Now, researchers at Temple University have established a link that may explain why.

8 Mar 2012

Study identifies mechanism that explains how cancer cells spread to the lymph nodes

Metastasis is responsible for 90% of deaths in patients with cancer. Understanding the mechanisms responsible for this process is one of the top goals of cancer research. The metastatic process involves a series of steps chained where the primary tumour invades surrounding tissues and ends spreading throughout the body. Ones of the first tissues undergoing metastasis are the lymph nodes surrounding the tumour.

7 Mar 2012

R-loop formation may drive under-methylation and autoimmunity

Researchers at the University of California, Davis, have figured out how the human body keeps essential genes switched "on" and silences the vast stretches of genetic repeats and "junk" DNA.

3 Mar 2012