Prenatal cocaine exposure or PCE occurs when a child is exposed in utero to cocaine taken by the pregnant mother. We know that cocaine exposure during pregnancy can negatively affect the pregnancy; women who use [...]
It is now widely accepted that there is an increased risk for depression among the children of mothers who suffer from depression. Exactly how this vulnerability to depression is transmitted to the child is not precisely understood and is undoubtedly quite complicated. Genetic factors clearly play an important role, but there are other important factors which contribute to the transgenerational transmission of depression. For example, many studies have shown that maternal depression may contribute to parenting styles which increase a child’s likelihood of developing depression later on.
Maternal depression has been identified as a risk factor for adolescent depression. In addition, maternal depression appears to increase the risk of certain behavioral problems in children; however, it appears that the timing of exposure may play an important role in mediating the effects of maternal depression. A recent study suggests that childhood exposure to maternal depression between the ages of 4 and 14 may result in risky behaviors later on during adolescence.
In every cell, genetic material is contained within the double-stranded molecules of DNA called chromosomes. Every time a cell divides, the chromosomes are copied so that each new cell gets a copy of this genetic material. However, the process isn’t perfect – a little bit of the end of the chromosome is lost each time so the copy is not a perfect reproduction. To prevent important genetic material from being lost, the cell protects itself with structures called telomeres located at the ends of the chromosomes. Telomeres are repeating DNA sequences and proteins that act like a guard so that when the chromosome is copied, the important material is protected and only the telomere is shortened. Since telomere shortening happens every time the cell divides, telomeres act like biological clocks for the cell. When the chromosome has been copied enough times that the telomere has been completely worn away, any future copies of the chromosome may be missing important genetic material and the cell may cease to function normally.
We have seen multiple studies which indicate that postpartum depression (PPD) interferes with breastfeeding. Postpartum women who suffer from depression are less likely to breastfeed, and they typically breastfeed for a shorter duration than women who are not depressed. A recent study looks at an entirely different question, asking whether postpartum stress affects the quality of the breast milk. In this study, the researchers focused on levels of immunoglobulin A (IgA) in the breast milk. (Immunoglobulins or antibodies are passed from the mother to the baby through the breast milk and help to confer immunity.)
Previous studies have shown that children who have lost a parent to suicide are more likely to attempt suicide than children whose parents died unintentionally. One obvious explanation for this finding is that the parents who attempt or commit suicide are more likely to have a mood disorder or serious psychiatric illness and that their children share this genetic vulnerability and are therefore more likely to have a psychiatric illness which increases their risk for suicide.
How does postpartum depression affect a mother’s ability to care for and parent her child? Various studies have demonstrated that depressed mothers may be less attuned to their children’s needs, either being less responsive to the baby or, in some cases, too intrusive. Researchers have speculated that this mismatch between mother and baby may contribute to problems with infant bonding, delays in development and emotional dysregulation.
Maternal psychiatric illness can profoundly affect how a mother interacts with her child and is a risk factor for impaired mother-infant bonding, which may include a spectrum of difficulties: decreased maternal affective involvement, increased irritability, [...]
In 2012, it was estimated that more than one third of children and adolescents were overweight or obese. There are undoubtedly many factors which may contribute to childhood obesity; a new study suggests that maternal depression may increase the risk of being overweight in low-income children.
While the human brain continues develop throughout the first twenty or so years of life, the most vulnerable periods of brain development occur during pregnancy and the first 2 to 3 years of the child’s [...]
