Sentences with phrase «studies aging effects»

Not exact matches

Along with the possibility of raising the age for purchasing a gun, the commission will study the effects of factors such as violent video games that contribute to what DeVos called a «culture of violence» in U.S. schools.

One effect can outweigh another depending on how large the study population was and who they are composed of (age, gender, race, medical history, environment etc etc).

One study looked at the effect frequent onion consumption had on perimenopausal and postmenopausal women aged 50 and older.

Some of the medical studies I used as a reference are: Caloric restriction and intermittent fasting: Two potential diets for successful brain aging and Dietary Factors, Hormesis and Health, found on the US National Library of Medicine Site, Cardioprotection by Intermittent Fasting in Rats on the American Heart Association Site and Effect of Ramadan intermittent fasting on aerobic and anaerobic performance and perception of fatigue in male elite judo athletes from the Journal of Strength and conditioning research.

He said his team will continue to follow the children in this study, until at least age 6, to see if there are any long - range effects linked to soy formula.

If you have been divorced within the past 3 years and have a child between the ages of 2 - 5 who is currently enrolled in preschool, would you be willing to take this survey for a researcher at Yeshiva University who is studying the effects of parental communication on preschooler behavior?

Spending many hours per week playing sports was found to have a positive effect on explosive strength and gross motor coordination among all age groups, supporting the theory advanced in earlier studies.»

In fact, it appears the sheer amount of time parents spend with their kids between the ages of 3 and 11 has virtually no relationship to how children turn out, and a minimal effect on adolescents, according to the first large - scale longitudinal study of parent time to be published in April in the Journal of Marriage and Family.

The effects of prolonged and exclusive breastfeeding on infectious diseases at older ages in industrialized countries remain to be studied.

In what is perhaps the largest study yet to investigate the effects of an infant feeding schedule, Maria Iacovou and Almudena Sevilla (2013) tracked the development of more than 10,000 British children — breastfed and bottle - fed alike — from birth to age 14.

Most studies have revealed protective effects of breastfeeding on common infections in the first 8 to12 months of life.8, 27,29,30 One study, which distinguished between infectious diseases until and from the age of 6 months, revealed results similar to those from our study.24 Although the authors used exclusive breastfeeding for 3 months as the reference group, exclusive breastfeeding for 6 months reduced the risk of gastrointestinal tract infections between the ages of 3 and 6 months but not between the ages of 6 and 12 months.24 We can not explain why breastfeeding duration was only associated with lower risks of lower respiratory tract infection from 7 to 12 months.

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.

Follow - up of some infants in different studies at three, six and nine years of age revealed no beneficial effects of supplementation.

Compared to studies examining the effects of behavioral sleep programs such as extinction - based techniques in infants over 6 months of age, fewer studies have looked at such strategies in infants under 6 months of age.

Finally, a Finnish trial of universal home visiting by nurses35 and two U.S. programs implemented by master's degree - level mental health or developmental clinicians have found significant effects on a number of important child behavioural problems.36, 37 Additionally, a paraprofessional home visitation program found effects on externalizing and internalizing behaviours at child age 2; however due to the large number of effects measured in this study, replication of the findings is warranted.38

Data from three waves of the Fragile Families Study (N = 2,111) was used to examine the prevalence and effects of mothers» relationship changes between birth and age 3 on their children's well - being.

In two studies, mothers reported more negative emotional behaviour in their preschool - aged children who formerly had colic, although there were no differences in all other reported behaviour problems when compared to infants who did not have colic.20, 21 Finally, several studies have also examined mental development in infants with colic and likewise have demonstrated no effect of colic.15, 16,20,22 In one study, although differences on the Bayley MDI were revealed at six months, both groups were within the normal range, and no differences were found at 12 months of age.23

Rakicioğlu et al (2006) 5 studied mothers with babies aged 2 — 5 months who fasted during Ramadan and found no effect of the fasting on the weight of the babies.

There were no differences between groups in the gestational age at randomization, time to uterine quiescence, time on study drug, length of hospitalization, days from randomization to delivery, incidence of side effects, or admissions to the neonatal intensive care unit.

Morbidity and mortality The reported risk of food allergy at 12 months of age was statistically significantly reduced among exclusively breastfed infants relative to mixed breastfed infants by 81 % (RR 0.19, 95 % CI [0.08 to 0.48], p = 0.00036; 1 study / 135 infants); however, when double - challenged with food in the same study, the effect size was reduced and became non-significant (RR 0.77, 95 % CI [0.25 to 2.41], p = 0.66).

Evaluating prior studies on parent - child reading in children up to age 6, researchers in Hong Kong found positive effects for both sides in so - called psychosocial functioning, which includes mental well - being, emotions, behavior and relationships with others.

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

-- Data from three waves of the Fragile Families Study (N = 2,111) was used to examine the prevalence and effects of mothers» relationship changes between birth and age 3 on their children's well being.

In addition, there was no effect on breastfeeding duration when the pacifier was introduced at 1 month of age.280 A more recent systematic review found that the highest level of evidence (ie, from clinical trials) does not support an adverse relationship between pacifier use and breastfeeding duration or exclusivity.281 The association between shortened duration of breastfeeding and pacifier use in observational studies likely reflects a number of complex factors such as breastfeeding difficulties or intent to wean.281 A large multicenter, randomized controlled trial of 1021 mothers who were highly motivated to breastfeed were assigned to 2 groups: mothers advised to offer a pacifier after 15 days and mothers advised not to offer a pacifier.

Although some SIDS experts and policy - makers endorse pacifier use recommendations that are similar to those of the AAP, 272,273 concerns about possible deleterious effects of pacifier use have prevented others from making a recommendation for pacifier use as a risk reduction strategy.274 Although several observational studies275, — , 277 have found a correlation between pacifiers and reduced breastfeeding duration, the results of well - designed randomized clinical trials indicated that pacifiers do not seem to cause shortened breastfeeding duration for term and preterm infants.278, 279 The authors of 1 study reported a small deleterious effect of early pacifier introduction (2 — 5 days after birth) on exclusive breastfeeding at 1 month of age and on overall breastfeeding duration (defined as any breastfeeding), but early pacifier use did not adversely affect exclusive breastfeeding duration.

Physiologic studies have demonstrated that, in general, swaddling decreases startling, 301 increases sleep duration, and decreases spontaneous awakenings.310 Swaddling also decreases arousability (ie, increases cortical arousal thresholds) to a nasal pulsatile air - jet stimulus, especially in infants who are easily arousable when not swaddled but less so in infants who have high arousal thresholds when not swaddled.301 One study found decreased arousability in infants at 3 months of age who were not usually swaddled and then were swaddled but found no effect on arousability in routinely swaddled infants.301 In contrast, another group of investigators showed decreased arousal thresholds310 and increases in autonomic (subcortical) responses311 to an auditory stimulus when swaddled.

At all ages, control infants were breastfed at higher rates than SIDS victims, and the protective effect of partial or exclusive breastfeeding remained statistically significant after adjustment for confounders.244 A recent meta - analysis that included 18 case - control studies revealed an unadjusted summary OR for any breastfeeding of 0.40 (95 % CI: 0.35 — 0.44).

In one study, a protective effect of breast milk on blood pressure was observed when 26 percent of the original cohort were followed up at ages 13 — 16 years (15), but not when 81 percent were examined at ages 7.5 — 8 years (16), suggesting either the possibility of selection bias in the later follow - up or an amplification of the breastfeeding — blood pressure association (49).

The effect of study size, age groups at outcome measurement (comparing those aged 16 — 30 y with those aged ≥ 50 y), year of birth, the method of ascertainment of infant feeding status (whether contemporary or recalled over a period of ≥ 5 y) was examined by using meta - regression and sensitivity analysis.

Three publications were excluded: one study examined only the association between duration of breastfeeding and fasting plasma lipids at 17 y of age, and there was no formula - fed group for comparison (21); one examined the effect of nutritional supplementation in pregnant mothers, infants, and children on serum lipids in later life (18); and one was a review (22).

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).

James Tilley and Geoff Evans (2013), «Ageing and generational effects on vote choice: Combining cross-sectional and panel data to estimate APC effects», Electoral Studies (forthcoming)

Two prominent studies find modest effects, in one case estimating that each 1 % increase in the share of migrants in the UK working age population leads to a 0.6 % decline in the wages of the 5 % lowest paid workers, which would mean about 3p less per hour for someone earning just over the minimum wage of # 6.19.

«Exploring the impact of the ageing population on the workforce and built environment» is the second report from the CIOB to study the effects of the ageing population.

And many studies, like this one, have failed to find a strong effect of paternal age on a couple's fertility.

«Although the effects of light are well studied in adults, virtually nothing is known about how evening light exposure affects the physiology, health and development of preschool - aged children,» said lead author Lameese Akacem, a CU Boulder instructor and researcher in the Sleep and Development Lab.

Burd and her colleagues used a mouse model to study what happens to the brains of those offspring as they age into adulthood to see if the effects persisted.

The study data do not overtly explain why snacking has opposite effects on diet quality depending on a child's age, but the researchers note that younger children more frequently depend on (and perhaps abide) grownups, while older kids are more often make their own snacking choices.

«After six months, resveratrol essentially prevented most of the negative effects of the high - calorie diet in mice,» says study co-author Rafael de Cabo of the National Institute of Aging (NIA).

Supported by a large student team, Kurth and her colleagues, Monique LeBourgeois professor at the University of Colorado Boulder, and Sean Deoni, professor at Brown University, studied the effects of 50 % sleep deprivation in a group of 13 children between the ages of 5 and 12 years.

To study the effect of size and age on seed reproduction, the researchers examined 55 seed - bearing Ailanthus trees in southcentral Pennsylvania.

«We believe that there is a threshold effect whereby the levels of Klotho, dictated mostly by the age of the patients, are crucial in determining whether they will benefit from this treatment or not,» said Reeti Behera, Ph.D., a postdoctoral researcher in the Weeraratna lab and first author of the study.

«Investigators of aging in humans have been interested in studying somatic aging, and they've been interested in looking at the effects of age on fertility, but, in general, there haven't been any people trying to tie those two lines of investigation together,» saysTerry Hassold, a reproductive biologist at Washington State University in Pullman who was not involved in the study.

Although some of Das's papers documenting the benefits of chemicals in wine have been cited hundreds of times, other researchers who study ageing and the effects of resveratrol downplayed the significance of his work.

The study also found that the effects of magnesium on pancreatic cancer did not appear to be modified by age, gender, body mass index or non-steroidal anti-inflammatory drug use, but was limited to those taking magnesium supplements either from a multivitamin or individual supplement.

She eventually joined the lab for her Ph.D. thesis research, studying the potential side effects of a common treatment for age - related macular degeneration.

«Furthermore, given the continued use of psychotropic medications in very young children and concerns regarding their effects on the developing brain, future studies on the long - term effects of psychotropic medication use in this age group are essential.»

Another study of 4,175 individuals between 11 and 17 years of age is the first to document reciprocal effects for major depression and short sleep duration among adolescents using prospective data.

In this study that analyzed data from more than 5,580 middle - aged Latin American women (mean age, 49.7 years), the cause - and - effect relationship was flipped to determine whether greater abdominal fat (defined as waist - to - height ratio in this instance) could increase a woman's chances of developing anxiety.

And as yet, no study has looked at the age related effect of obesity on dementia risk across the whole age range in the population of one country.