Hello World

Aerobic Exercise Increases Function of the Hippocampus, HAT and HDAC Activity

Staying physically active is an effective method of delaying age-related cognitive decline [1]. Aerobic exercise increases expression of brain derived neurotrophic factor (BDNF) in the hippocampus, maintaining cognitive function [2], [3]. This exercise induced BDNF expression is accompanied by increased acetylation of histone 3 [4]. It is unknown what molecular …

READ MORE →
Colorectal cancer and obesity

Risk for Colorectal Cancer is Increased by Obesity-related Gene Expression Changes

Colorectal cancer is an age-related disease traditionally seen in populations over the age of 50. In recent years, colorectal cancer has become more prevalent in younger individuals, and obesity is thought to be a major risk factor. However, the molecular mechanisms underlying this increased risk remains unclear. Since DNA methylation …

READ MORE →
Sex Influences Brain Aging by Impacting DNA Methylation

Sex Influences Brain Aging by Impacting DNA Methylation

While sex differences across aging and in the incidence of neurodegenerative diseases are well documented, relatively little data is available that compares sex-specific epigentic changes in the aging brain.1  Recent studies have identified specific loci with age-realted hyper- or hypo- methylation changes in liver, lung, and heart – but no …

READ MORE →
DNA methylation is as active mark of aging and age-related cognitive impairment in the medial prefrontal cortex

DNA Methylation is as Active Mark of Aging and Cognitive Impairment

Aging and age-related cognitive decline have been reported to be associated to transcriptomic alterations related to neural activity, synaptic plasticity and inflammation in specific brain regions, including the hippocampus and the medial prefrontal cortex (mPFC).1-4  Furthermore, previous epigenetic studies indicate that DNA methylation in the hippocampus is linked to cognitive …

READ MORE →
Mitochondrial epigenetics neurodegeneration

Mitochondrial Epigenetics and Neurodegeneration

Mitochondrial impairment is a feature of neurodegeneration and many investigators have suggested that epigenetic modifications of the mitochondrial DNA (mtDNA) might occur in Alzheimer’s disease (AD), Parkinson’s disease (PD), and other neurodegenerative conditions, but evidence in humans is limited. There is accumulating evidence of epigenetic modifications in samples from patients …

READ MORE →
Epigenetics and Obesity

Epigenetic Marks Associated to Severe Obesity

There is growing evidence that DNA methylation might contribute to obesity. Candidate gene methylation studies in animal models and humans have demonstrated methylation changes in promoters of various genes that are implicated in obesity, appetite control and/or metabolism, insulin signaling, immunity, growth and circadian clock regulation. Severe obesity in children …

READ MORE →
CHL1 hypermethylation

CHL1 Hypermethylation in Breast Cancer

Breast cancer (BC) is the most common cancer among women and one of the leading causes of cancer-related deaths worldwide (1-3). It is a clinically heterogeneous disease, with at least 5 different subtypes (4) and quite variable prognosis, even within a subtype. In spite of early detection programmes, unfortunately 20-30% …

READ MORE →
Fibrosis radiation therapy epigenetics

Epigenetic Predisposition to Radiation Fibrosis

Radiotherapy is a highly efficient treatment for many cancers including breast cancer. Intraoperative radiotherapy (IORT), a relatively new type of radiation therapy, has proven successful as a curative treatment for early cancer stages. However, in spite of great improvements in dose delivery and imaging technology, unwanted exposure of healthy tissue …

READ MORE →