The lifelong impact of maternal postpartum behavior

This 2018 French/Italian/Swiss rodent study was an extension of the work done by the group of researchers who performed Prenatal stress produces offspring who as adults have cognitive, emotional, and memory deficiencies and Treating prenatal stress-related disorders with an oxytocin receptor agonist: “Reduction of maternal behavior [nursing behavior, grooming, licking, carrying pups] was predictive of … Continue reading The lifelong impact of maternal postpartum behavior

Sex-specific impacts of childhood trauma

This 2018 Canadian paper reviewed evidence for potential sex-specific differences in the lasting impacts of childhood trauma: “This paper will provide a contextualized summary of neuroendocrine, neuroimaging, and behavioral epigenetic studies on biological sex differences contributing to internalizing psychopathology, specifically posttraumatic stress disorder and depression, among adults with a history of childhood abuse. Given the … Continue reading Sex-specific impacts of childhood trauma

The impact of the last snowflake

Was the recent Swiss avalanche’s cause the last, triggering snowflake, or the billions of snowflakes before it? There’s been a slight increase in the number of PNAS studies that included the “catastrophic” search word from October 2016 to mid-January 2018 compared to the January 2014 to mid-April 2015 period referenced in How well can catastrophes … Continue reading The impact of the last snowflake

Beyond Belief: The impact of merciless beatings on beliefs

Continuing with Dr. Arthur Janov’s May 2016 book Beyond Belief: “p. 17 When someone insults us, we immediately create reasons and rationales for it. We cover the pain. Now imagine a whole early childhood of insults and assaults and how that leaves a legacy that must be dealt with. The mind of ideas and philosophies … Continue reading Beyond Belief: The impact of merciless beatings on beliefs

Do the impacts of early experiences of hunger affect our behavior, thoughts, and feelings today?

This 2015 worldwide human study Hunger promotes acquisition of nonfood objects found that people’s current degree of hungriness affected their propensity to acquire nonfood items. The researchers admitted that they didn’t demonstrate cause and effect with the five experiments they performed, although the findings had merit. News articles poked good-natured fun at the findings with … Continue reading Do the impacts of early experiences of hunger affect our behavior, thoughts, and feelings today?

Problematic research: Feigning naivety of the impact of prenatal, infancy and early childhood experiences

What I found curious in this 2012 UK review of 82 studies was the reviewer’s reluctance to highly regard a human’s life before birth, during infancy and in early childhood. There was no lack in 2012 of animal studies to draw from to inferentially hypothesize how a human fetal environment causes the fetus to adapt … Continue reading Problematic research: Feigning naivety of the impact of prenatal, infancy and early childhood experiences

A mid-year selection of epigenetic topics

Here are the most popular of the 65 posts I’ve made so far in 2018, starting from the earliest: The pain societies instill into children DNA methylation and childhood adversity Epigenetic mechanisms of muscle memory Sex-specific impacts of childhood trauma Sleep and adult brain neurogenesis This dietary supplement is better for depression symptoms than placebo … Continue reading A mid-year selection of epigenetic topics

Addictive behavior and epigenetic DNA methylation

This 2018 McGill paper reviewed findings from animal and human studies on the relationships between drug-seeking behavior and epigenetic DNA methylation: “Although there is an increasing line of evidence from preclinical models of addiction, there are only a few human studies that systematically assessed DNA methylation in addiction. Most of the studies were done on … Continue reading Addictive behavior and epigenetic DNA methylation

Transgenerational epigenetic effects of maternal obesity during pregnancy

This 2018 Belgian review subject was in part the transgenerational epigenetic effects of maternal obesity during pregnancy. The subject was tailored for the journal in which it appeared, Atherosclerosis, so other transgenerationally inherited epigenetic effects weren’t reviewed: “The transgenerational impact of these alterations in methylation patterns are only shown in animal studies with HFD [high-fat … Continue reading Transgenerational epigenetic effects of maternal obesity during pregnancy

The lack of oxygen’s epigenetic effects on a fetus

This 2018 Loma Linda review subject was gestational hypoxia: “Of all the stresses to which the fetus and newborn infant are subjected, perhaps the most important and clinically relevant is that of hypoxia. This review explores the impact of gestational hypoxia on maternal health and fetal development, and epigenetic mechanisms of developmental plasticity with emphasis … Continue reading The lack of oxygen’s epigenetic effects on a fetus