Sentences with phrase «maternal age effect»

Maternal age effect and severe germ - line bottleneck in the inheritance of human mitochondrial DNA.

Maternal age effect and severe germ - line bottleneck in the inheritance of human mitochondrial DNA Rebolledo - Jaramillo, B., M. S. Su, N. Stoler, J. A. McElhoe et al. 2014.

Knowledge about both the maternal age effect and the bottleneck size is useful in family planning.

Results also seemed to indicate that the maternal age effect is stronger than the paternal age effect.

The discovery of a «maternal age effect» by a team of Penn State scientists that could be used to predict the accumulation of mitochondrial DNA mutations in maternal egg cells — and the transmission of these mutations to children — could provide valuable insights for genetic counseling.

Not exact matches

On the other hand, advanced maternal age is associated with a more stable family environment, higher socio - economic position, higher income and better living conditions, as well as better parenting practices, [14] but it is more or less uncertain whether these entities are effects of advanced maternal age, are contributors to advanced maternal age, or common effects of a certain state such as personality type.

The effect of advanced maternal age upon human milk fat content.

Combined effects of maternal age and parity on successful initiation of exclusive breastfeeding.

Of note, our models may underestimate the true maternal costs of suboptimal breastfeeding; we modeled the effects of lactation on only five maternal health conditions despite data linking lactation with other maternal health outcomes.46 In addition, women in our model could not develop type 2 diabetes mellitus, hypertension, or MI before age 35 years, although these conditions are becoming increasingly prevalent among young adults.47 Although some studies have found an association between lactation and rates of postmenopausal diabetes22, 23 and cardiovascular disease, 10 we conservatively limited the duration of lactation's effect on both diabetes and MI.

The effect of maternal age and planned place of birth on intrapartum outcomes in healthy women with straightforward pregnancies: secondary analysis of the Birthplace national prospective cohort study

Our data agrees with that of others, 1223 that suggest that delaying the introduction of formula milk protects against the morbidity associated with respiratory infection, illness, and associated hospitalisations in the first year of life.24 Prolonged breast feeding was only marginally associated with less respiratory illness when examined in a New Zealand birth cohort to 2 years of age, 25 and the Dundee study8 showed a small, yet significant protective effect of breast feeding against respiratory illness at 0 — 13 weeks and 40 — 52 weeks after adjustment for social class, maternal age, and parental smoking.

The addition of the Infant Feeding Intentions score to the model strengthened the association with maternal age and BMI, with little effect on the other variables.

We found little evidence that between - study heterogeneity in estimates was explained by age at measurement of blood pressure (p = 0.5), decade of birth (p = 0.2), stipulation of a minimum duration of breastfeeding (p = 0.5), proportion of the target population in the main analysis (p = 0.2), whether breastfeeding was exclusive for at least 2 months (p = 0.2), method of blood pressure measurement (p = 0.4), or whether effect estimates controlled for socioeconomic factors (p = 0.9), maternal factors in pregnancy (p = 0.9), or current weight (p = 0.9).

Ozanne says that similar ageing effects have been identified in beta cells from people with type 2 diabetes, but she adds that her team have yet to prove this is linked to poor maternal diet in humans.

The study could not absolutely rule out some effect of older mothers, but «we're pretty confident that the paternal age risk holds no matter what the maternal age,» he says.

While previous studies have demonstrated the effects of maternal depression on children's limited response to other's pain, this new study is the first to examine this topic in a longitudinal sample of mother - child pairs followed from birth to age 11.

We investigated the effects of treatment of maternal hypoxic pregnancies with an antioxidant on the cardiovascular system of the offspring at two stages of life: in the fetal period at the end of gestation and at 4 months of adult age.

Though western medicine tends to write off these patients as a lost cause with «advanced maternal age,» with consistent treatment OM techniques can help to reverse the effects of aging and increase the likelihood of successful conception and healthy pregnancy.

The effect of maternal care and age of separation (from the mother) on TC was also evaluated using a generalized linear model with a binomial distribution.

Black race was associated with teaching / verbal assertion and mild physical force, and race was part of an interactive effect with maternal age for limit setting.

Logistic regression analyses were conducted to estimate the effect of maternal IPV on asthma diagnosed by age 36 months while adjusting for potential confounders (child's sex, age, race / ethnicity, low birth weight, maternal education, economic hardship, and tobacco exposure).

Based on prior empirical and theoretical work, this study investigated the following hypotheses: (1) maternal exposure to IPV will be associated with higher odds of obesity at age 5 years in their children; (2) maternal exposure to IPV will be associated with feeding practices and behaviors that elevate risk for childhood obesity; and (3) maternal perception of lower neighborhood safety will increase the effect of IPV on childhood obesity risk.

It is also possible that the relatively small effect of maternal feeding behaviors is overwhelmed by cofounders such as television viewing or consumption of calorically dense foods (eg, sweets or French fries), which are, like maternal feeding behaviors, associated with both markers of socioeconomic status (58, 59) and adiposity (58, 60) and an increase in frequency between ages 15 and 36 mo (61, 62).

Detailed maternal report on delivery allowed us to look at the effects across the continuum of gestational age.

Maternal age at delivery, ethnicity, smoking during pregnancy, parity, paternal diabetes status at follow - up, family social class, sex, offspring physical activity, and offspring smoking habits were not found to be confounders and had no effect on offspring risk of type 2 diabetes / pre-diabetes when entered in multiple logistic regression models.

The results in Tables 2 and 3 also indicate that concurrent risks (most consistently maternal depression and stressful life events) and maternal life history risks (most consistently giving birth before age 20 and leaving home before 18 years of age) exerted a consistent and generalized effect on children's health outcomes at 2 years of age.

For low - income families headed by single mothers, the associations between maternal employment and children's cognitive and social development tend to be neutral or positive, but much of this difference is a function of pre-existing differences between mothers who are or are not employed.2, 3,4,5 The effects of maternal employment on children's development also depend on the characteristics of employment — its quality, extent and timing — and on the child's age.2, 6,7 On the other hand, poverty has consistently negative associations with young children's development, but here, too, there is considerable controversy about the causal role of income per se, as opposed to other correlates of poverty.8, 9,10,11,12,13

Contrary to meta - analytic findings of the earlier literature that focused only on the effects of the amount of care provided without adequately controlling for selection effects, the NICHD Study found that a number of features of child care (the amount of child care, age of entry into care, and the quality and stability of child care) were unrelated to the security of infant — mother attachments or to an increased likelihood of avoidant attachments, except when mothers provided less sensitive parenting of their infant.11 For the children who received less sensitive maternal care, extended experience with child care, lower - quality child care, and more changes in child care arrangements were each associated with an increased likelihood of developing an insecure attachment with their mothers.

For the upper - bound effects on maternal employment, we estimated what the increase in maternal employment for children with children under age 6 required to reach the higher level of overall maternal employment for mothers with children ages 6 through 17 (with none younger than 6 years old).

The most recent follow - up study reported associations between duration of breastfeeding and childhood cognitive ability and academic achievement extending from 8 to 18 years in a New Zealand cohort of 1000 children.19 This study found that these effects were significant after controlling for measures of social and family history, including maternal age, education, SES, marital status, smoking during pregnancy, family living conditions, and family income, and measures of perinatal factors, including gender, birth weight, child's estimated gestational age, and birth order in the family.

Results showed intervention effects for early externalizing and internalizing problems from 2 to 4, and reductions in maternal depression from ages 2 to 3.

A recent study found that as little as a half - day per week in formal child care at age two buffered the effects of recurrent maternal depression on children's behavior problems at age five.

Prenatal effects of selective serotonin reuptake inhibitors antidepressents, serotonin transporter promoter genotype (SLC6A4), and maternal mood on child behavior at 3 years of age.

Inhibitory control moderated the effect of profile membership on girls» BMI at age 7 (ANCOVA: F [165,3] = 3.28, P < 0.05), after adjustment for girls» BMI at age 5 y, maternal education, and BMI and family income.

Inhibitory control moderated the effect of profile membership on girls» EAH at age 7 y (ANCOVA: F [155,3] = 2.06, P < 0.10), after adjustment for girls» EAH at age 5 y, maternal education, and BMI and family income.

After adjusting for the duration and severity of maternal depression, duration of treatment, number of depressive episodes after delivery, maternal IQ and socioeconomic status, the study showed that tricyclic antidepressants and fluoxetine had no adverse effects on the global IQ, language development or behaviour of children between 15 and 71 months of age [60].

Patterns of attachment and maternal discourse effects on children's emotion understanding from 3 to 5 years of age.

This study investigated joint effects of maternal prenatal smoking and parental history of antisocial behavior on physical aggression between ages 17 and 42 months in a population sample of children born in Québec (N = 1,745).

Assessments of cognitive and socioemotional competence at 4 years and kindergarten age suggested a protective effect of secure infant attachment but little benefit from secure preschool attachment.This study was supported by Grants MCJ - 540615 and R40 MC 00091 from the Maternal and Child Health Bureau (Title V, Social Security Act), Health Resources and Services Administration, Department of Health and Human Services and by Grant MH48395 from the National Institute of Mental Health, Department of Health and Human Services.