DNA Methylation News and Research

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DNA methylation is a type of chemical modification of DNA that can be inherited and subsequently removed without changing the original DNA sequence. As such, it is part of the epigenetic code and is also the most well characterized epigenetic mechanism.

McGill researchers identify key mechanism by which environmental factors influence traits

Until now scientists have believed that the variations in traits such as our height, skin colour, tendency to gain weight or not, intelligence, tendency to develop certain diseases, etc., all of them traits that exist along a continuum, were a result of both genetic and environmental factors. But they didn't know how exactly these things worked together.

12 Mar 2015

New study identifies genetic link to peanut allergy

Researchers have pinpointed a region in the human genome associated with peanut allergy in U.S. children, offering strong evidence that genes can play a role in the development of food allergies.

25 Feb 2015

Epigenetics and women’s health research: an interview with Professor Steve Conlan, Swansea University

Our research into gynaecological oncology focuses around understanding mechanisms of how genes are regulated or how they become dysregulated in a disease; and also the effects that has on the surface of the endometrium and also the function of the ovaries...

From Chromatrap® - Porvair Sciences Ltd 24 Feb 2015

Epigenome plays significant part in embryonic development

The early stages of embryonic development shape our cells and tissues for life. It is during this time that our newly formed cells are transformed into heart, skin, nerve or other cell types. Scientists are finding that this process is largely controlled not by the genome, but by the epigenome, chemical markers on DNA that tell cells when to turn genes on and off.

24 Feb 2015

Researchers assemble comprehensive map of human epigenome

Virtually every cell in the body carries an identical genome. But how is it possible that each of the body's 200 different types of specialized cells - in the heart, brain, bone, skin and elsewhere - develops from the same DNA instruction book?

19 Feb 2015

TNF signaling molecule triggers Crohn's disease, ulcerative colitis

Cells lining the intestinal tract form a critical barrier, protecting our bodies from the billions of bacteria living in the gut. Breaches in this barrier are driven largely by a single signaling molecule called tumor necrosis factor (TNF), elevated amounts of which are associated with inflammatory bowel diseases like Crohn's disease and ulcerative colitis.

17 Feb 2015

New study sheds light on anorexia nervosa

A study led by Howard Steiger, PhD, head of the Douglas Mental Health University Institute Eating Disorders Program, in Montreal, in collaboration with Linda Booij, a researcher with Sainte-Justine Hospital and an assistant professor at Queen's University, is the first to observe effects suggesting that the longer one suffers from active anorexia nervosa (AN), the more likely they are to show disorder-relevant alterations in DNA methylation.

9 Feb 2015

Genomics of papillary thyroid carcinoma (PTC): an interview with Professor Thomas J. Giordano

There are two types of thyroid cells and therefore there are two broad types of thyroid cancer. Medullary carcinoma is derived from parafollicular or C cells, whereas follicular cells give rise to several types of thyroid cancers.

4 Feb 2015

New study examines the methylome of triple-negative breast cancer

The new study, published in Nature Communications, compares the breast cancer DNA 'methylome' with that of healthy individuals. The methylome provides a new picture of the genome and shows how it is epigenetically 'decorated' with methyl groups, a process known as DNA 'methylation'.

3 Feb 2015

Researchers reveal why many African-American women are diagnosed with deadly forms of breast cancer

Researchers have uncovered new information that may begin to explain why many African-American women are more likely to be diagnosed with aggressive, often deadly forms of breast cancer, which strengthens the evidence that increased dietary folate intake may prove to be an effective strategy for reducing risk for the disease in African-American women.

31 Jan 2015

Offspring of mice treated with drug had delayed onset, reduced symptoms of Huntington's disease

Famine, drug abuse and even stress can "silence" certain genes, causing health problems in generations to come. Now scientists are wondering—could therapies that change gene expression in parents help their children?

23 Dec 2014

Study: Long-term endurance training alters epigenetic pattern in the human skeletal muscle

A new study from Karolinska Institutet in Sweden shows that long-term endurance training in a stable way alters the epigenetic pattern in the human skeletal muscle. The research team behind the study, which is being published in the journal Epigenetics, also found strong links between these altered epigenetic patterns and the activity in genes controlling improved metabolism and inflammation.

10 Dec 2014

Joslin researcher identifies molecular pathway that causes neural tube defects in diabetic pregnancies

Mary R. Loeken, Ph.D., Investigator in the Section on Islet Cell and Regenerative Biology at Joslin Diabetes Center and Associate Professor of Medicine at Harvard Medical School, has discovered a molecular pathway responsible for neural tube defects in diabetic pregnancies. Her latest research findings in this pathway were published in the October issue of Diabetes.

6 Nov 2014

Effects of unhealthy lifestyle persist even after atherosclerosis treatment

Almost everyone knows that improving your eating habits will most likely improve your health. What most people may not know, however, is that the effects of poor eating habits persist long after dietary habits are improved. In a new report appearing in the November 2014 issue of the Journal of Leukocyte Biology, scientists use mice to show that even after successful treatment of atherosclerosis (including lowering of blood cholesterol and a change in dietary habits) the effects of an unhealthy lifestyle still affect the way the immune system functions.

6 Nov 2014

Lund University researchers identify mechanisms that play vital role in development of type 2 diabetes

By studying identical twins, researchers from Lund University in Sweden have identified mechanisms that could be behind the development of type 2 diabetes. This may explain cases where one identical twin develops type 2 diabetes while the other remains healthy.

7 Oct 2014

Salk researchers receive BRAIN Initiative funding

Joseph Ecker, a Salk professor and Howard Hughes Medical Institute investigator, and Margarita Behrens, Salk staff scientist, have been named recipients in the 2014 round of grants from the National Institutes of Health (NIH) through the BRAIN (Brain Research through Advancing Innovative Neurotechnologies) Initiative for leading-edge work in neuroscience.

1 Oct 2014

Prenatal maternal stress exposure to Quebec ice storm predicts epigenetic profile of offspring

The number of days an expectant mother was deprived of electricity during Quebec's Ice Storm (1998) predicts the epigenetic profile of her child, a new study finds.

30 Sep 2014

Scientists discover new clues about drug used in treating blood cancer

Keck Medicine of USC scientists have discovered new clues about a drug instrumental in treating a certain blood cancer that may provide important targets for researchers searching for cures.

26 Sep 2014

Human stem cells can be reset to their native undifferentiated state

Scientists at the Babraham Institute, in collaboration with colleagues at the Cambridge Stem Cell Institute and the European Bioinformatics Institute, have made a breakthrough in stem cell research. Their paper, published today in Cell, describes how human stem cells can be reverted back to non-specialised cells.

11 Sep 2014

Researchers focus on how exposure to opioids may alter expression of OPRM1 gene

Some infants born with neonatal abstinence syndrome (NAS) secondary to in-utero opioid exposure have a more difficult time going through withdrawal than others, but the underlying reasons are not well understood.

20 Aug 2014