Researchers have found a new evidence that helps to explain how stress influence our very DNA without any change to the underlying sequence of As, Gs, Ts and Cs.
Stressful Home Boosts Lung Damage in Kids
Children growing up in a stressful household condition are prone to lung-damaging effects of traffic-related pollution (TRP), says research.
Children growing up in a stressful household condition are prone to lung-damaging effects of traffic-related pollution (TRP), says research.
Our genes encode proteins, but whether and how those genetic instructions are ultimately read and expressed depends on how those genes are chemically modified and "packaged" into a more complex structure known as chromatin. Some portions of the genome are more tightly wound into what's known as heterochromatin. Heterochromatin is maintained from one generation to the next and typically doesn't contain active genes, Ishii explained.
Ishii and his colleagues now confirm that ATF-2 (activation transcription factor-2) which they discovered in yeast over 20 years ago, is required for heterochromatin assembly in multicellular organisms. When fruitflies are exposed to stressful conditions, the ATF-2 is modified and disrupts heterochromatin, releasing genes from their usual silenced state. Importantly, these changes in genomic structure are passed on from one generation to the next.
Post-traumatic Stress Disorder Haunts Women in Leh
Even after almost a year, women in Leh district feel haunted by memories of the cloudburst and are struggling to move on in life while depending on medicines provided at occasional health camps.
Even after almost a year, women in Leh district feel haunted by memories of the cloudburst and are struggling to move on in life while depending on medicines provided at occasional health camps.
According to Ishii, the take-home message is this: "I hope that people understand that various stresses can change gene expression without DNA sequence change."
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Why We Crave for 'Pleasure Foods' During Stress
Scientists have conducted a study, which explains the cause behind the craving for high calorie pleasure foods, such as chocolates, mashed potatoes and ice creams during times of stress.
Scientists have conducted a study, which explains the cause behind the craving for high calorie pleasure foods, such as chocolates, mashed potatoes and ice creams during times of stress.
The study has been published in Cell.
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Stress and Emotion Affected by City Life
Major lifetime risk for anxiety and mood disorders is linked with being born and raised in a major urban area as described in a new international study.
Major lifetime risk for anxiety and mood disorders is linked with being born and raised in a major urban area as described in a new international study.
