Chromatin News and Research

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Researchers create high-resolution map of gene regulatory elements in the brain

Future research into the underlying causes of neurological disorders such as autism, epilepsy and schizophrenia, should greatly benefit from a first-of-its-kind atlas of gene-enhancers in the cerebrum (telencephalon).

2 Feb 2013

Cancer researchers solve mystery of how Chd5 protein exerts its beneficial effects

A team of cancer researchers at Cold Spring Harbor Laboratory (CSHL) has solved the mystery of how one of the most powerful of the body's natural tumor-suppressing proteins, called Chd5, exerts its beneficial effects.

11 Jan 2013

Brake for skin inflammation discovered

The absence of a protein called Ctip2 in the skin allows increased levels of T-helper 2 cytokines and may have a role in conditions such as atopic dermatitis, research in mice suggests.

4 Jan 2013

Chromatin regulation not governed by a uniform histone code

In a novel use of gene knockout technology, researchers at the University of California, San Diego School of Medicine tested the same gene inserted into 90 different locations in a yeast chromosome - and discovered that while the inserted gene never altered its surrounding chromatin landscape, differences in that immediate landscape measurably affected gene activity.

4 Jan 2013

Autism genome not shy about tinkering with important genes

An international team, led by researchers from the University of California, San Diego School of Medicine, has discovered that "random" mutations in the genome are not quite so random after all. Their study, to be published in the journal Cell on December 21, shows that the DNA sequence in some regions of the human genome is quite volatile and can mutate ten times more frequently than the rest of the genome. Genes that are linked to autism and a variety of other disorders have a particularly strong tendency to mutate.

21 Dec 2012

American Association of Anatomist announces winners of Young Investigator Awards

The American Association of Anatomist's (AAA) Young Investigator Awards combine three long-standing AAA awards-Bensley, Herrick, and Mossman-with the Morphological Sciences Award, all recognizing investigators in the early stages of their careers who have made important contributions to biomedical science through their research in cell/molecular biology, developmental biology, comparative neuroanatomy, or the morphological sciences.

12 Dec 2012

Scientists determine specific genetic switches that sync liver activity to the circadian cycle

When it's dark, and we start to fall asleep, most of us think we're tired because our bodies need rest. Yet circadian rhythms affect our bodies not just on a global scale, but at the level of individual organs, and even genes.

12 Dec 2012

Researchers unlock mechanisms of how the body converts dietary carbohydrates into fat

A gene that helps the body convert that big plate of holiday cookies you just polished off into fat could provide a new target for potential treatments for fatty liver disease, diabetes and obesity.

6 Dec 2012

Mutations signaling poor neuroblastoma prognosis identified

Children with neuroblastoma who have mutations in the ARID1A and ARID1B genes in their tumors have a poor prognosis compared with those without these alterations, show study findings.

4 Dec 2012

Reduced production of myelin may play role in development of mental illness: Study

Reduced production of myelin, a type of protective nerve fiber that is lost in diseases like multiple sclerosis, may also play a role in the development of mental illness, according to researchers at the Graduate School of Biomedical Sciences at Mount Sinai School of Medicine.

1 Dec 2012

Reduction in myelin production may also play a role in development of mental illness

29 Nov 2012

Advances in genomic techniques help understand cancer at cellular and molecular level

Cancer is a complex disease and only thanks to advances in genomic techniques have researchers begun to understand, at a cellular and molecular level, the mechanisms which are disrupted in cancer cells. This knowledge is a key prerequisite for developing effective treatment strategies.

23 Nov 2012

Study provides new insight into human cognitive function and risk for neurological diseases

Short snippets of DNA found in human brain tissue provide new insight into human cognitive function and risk for developing certain neurological diseases, according to researchers from the Departments of Psychiatry and Neuroscience at Mount Sinai School of Medicine. The findings are published in the November 20th issue of PLoS Biology.

22 Nov 2012

Dysregulation of CISTR-ACT causes brachydactyly type E

The patients have single short fingers (metacarpals) and toes (metatarsals) and can be restricted in growth due to a shortened skeleton. This hereditary disease is called brachydactyly type E (Greek for short fingers).

6 Nov 2012

Researchers identify genes linked to serous endometrial cancer

Researchers have identified several genes that are linked to one of the most lethal forms of uterine cancer, serous endometrial cancer.

29 Oct 2012

Idea of nuclear reprogramming holds promise for repairing damaged tissue

The idea of taking a mature cell and removing its identity (nuclear reprogramming) so that it can then become any kind of cell, holds great promise for repairing damaged tissue or replacing bone marrow after chemotherapy.

29 Oct 2012

Researchers identify critical mechanisms of epigenetic cell programming

A team of researchers at the IRCM, supervised by Dr. Jacques Drouin, reprogrammed the identity of cells in the pituitary gland and identified critical mechanisms of epigenetic cell programming.

17 Oct 2012

Chromosome 3p21.1 locus contains common genetic risk for bipolar disorder

One of the biggest challenges in psychiatric genetics has been to replicate findings across large studies. Scientists at King's College London, Institute of Psychiatry have now performed one of the largest ever genetic replication studies of bipolar affective disorder, with 28,000 subjects recruited from 36 different research centers. Their findings provide compelling evidence that the chromosome 3p21.1 locus contains a common genetic risk for bipolar disorder, the PBRM1 gene.

15 Oct 2012

Mouse genome consists of 10-nm chromatin fibres

Scientists in Canada and the United States have used three-dimensional imaging techniques to settle a long-standing debate about how DNA and structural proteins are packaged into chromatin fibres. The researchers, whose findings are published in EMBO reports, reveal that the mouse genome consists of 10-nm chromatin fibres but did not find evidence for the wider 30-nm fibres that were previously thought to be important components of the DNA architecture.

5 Oct 2012

People with SIRT1 genetic variation more likely to develop vibration-induced white finger disease

Vibration-induced white finger disease (VWF) is caused by continued use of vibrating hand held machinery (high frequency vibration >50 Hz), and affects tens of thousands of people. New research published in BioMed Central's open access journal Clinical Epigenetics finds that people with a genetic polymorphism (A2191G) in sirtuin1 (SIRT1), a protein involved in the regulation of endothelial NOS (eNOS), are more likely to suffer from vibration-induced white finger disease.

1 Oct 2012