Men's emotional health can be overlooked during their partner's pregnancy and throughout the first postpartum year. Postpartum depression, once expected only in new mothers, is now estimated to occur in 4-25% of new fathers as well. The incidence of paternal postpartum depression is greater in couples where maternal postpartum depression is also present. Paternal postpartum depression can be di...

ackground: Inbred mice are genetically identical but nonetheless demonstrate substantial variability in complex behaviors such as ctivity levels in a novel environment. This variability has been associated with levels of parental care experienced early in development. lthough maternal effects have been reported in biparental and uniparental strains, there have been no investigations of paternal...

Both parental care and hatching plasticity can improve embryo survival. Research has found that parents can alter hatching time owing to a direct effect of care on embryogenesis or via forms of care that cue the hatching process. Because parental care alters conditions critical for offspring development, hatching plasticity could allow embryos to exploit variation in parental behaviour. However...

This study used cross-lagged modeling to examine reciprocal relations between maternal and paternal harsh verbal discipline and adolescents' conduct problems and depressive symptoms. Data were from a sample of 976 two-parent families and their children (51% males; 54% European American, 40% African American). Mothers' and fathers' harsh verbal discipline at age 13 predicted an increase in adole...

A total of 70 age- and gender-matched children and their relatives who were from families that were either at high or low risk for developing alcoholism were studied and the children evaluated using event-related potential paradigms from both the auditory and visual modalities. The high-risk children were ascertained through families at exceptionally high risk for female alcoholism (half of all...

Evolutionary transitions among maternal, paternal, and bi-parental care have been common in many animal groups. We use a mathematical model to examine the effect of male and female life-history characteristics (stage-specific maturation and mortality) on evolutionary transitions among maternal, paternal, and bi-parental care. When males and females are relatively similar - that is, when females...

In more than 95% of mammalian species, males provide little direct investment in the well-being of their offspring. Humans are one notable exception to this pattern and, to date, the factors that contributed to the evolution and the proximate expression of human paternal care are unexplained (T. H. Clutton-Brock, 1989). The nature, extent, and influence of human paternal investment on the physi...

Background Most existing research on the association of parental education with childhood undernutrition focuses on maternal education and often ignores paternal education. We systematically investigate differences in maternal and paternal education and their association with childhood undernutrition. Methods One hundred and eighty Demographic and Health Surveys from 62 countries performed be...

B chromosomes are centric chromosomal fragments present in thousands of eukaryotic genomes. Because most B chromosomes are non-essential, they can be lost without consequence. In order to persist, however, some B chromosomes can impose strong forms of intra-genomic conflict. An extreme case is the paternal sex ratio (PSR) B chromosome in the jewel wasp Nasonia vitripennis. Transmitted solely vi...

Angelman syndrome (AS) is a neurodevelopmental disorder due to a functional deficit, usually a deletion, of the UBE3A gene located in the 15q11-q13 chromosome region. We report the first microarray analysis of gene expression in AS using a custom cDNA microarray to compare expression patterns from lymphoblastoid cell lines from control males and AS subjects with a 15q deletion or uniparental pa...