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Pregnancy in adolescents

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https://www.readbyqxmd.com/read/28105727/placental-dysfunction-is-associated-with-altered-microrna-expression-in-pregnant-women-with-low-folate-status
#1
Bernadette C Baker, Fiona L Mackie, Samantha C Lean, Susan L Greenwood, Alexander Ep Heazell, Karen Forbes, Rebecca L Jones
SCOPE: Low maternal folate status during pregnancy increases the risk of delivering small for gestational age (SGA) infants, but the mechanistic link between maternal folate status, SGA and placental dysfunction is unknown. microRNAs (miRNA) are altered in pregnancy pathologies and by folate in other systems. We hypothesized low maternal folate status causes placental dysfunction, mediated by altered miRNA expression. METHODS AND RESULTS: A prospective observational study recruited pregnant adolescents, and assessed third trimester folate status and placental function...
January 20, 2017: Molecular Nutrition & Food Research
https://www.readbyqxmd.com/read/28101122/start-early-does-social-instability-during-the-pre-and-early-postnatal-development-prepare-male-wild-cavies-for-social-challenge-later-in-life
#2
Katja Siegeler, Lars Lewejohann, Klaus Failing, Norbert Sachser, Sylvia Kaiser
BACKGROUND: The social environment the mother experiences during pregnancy and lactation can powerfully influence the offspring's behavioural profile. Our previous studies in wild cavies show that two different social environments during pregnancy and lactation bring about different behavioural strategies of male offspring later in life: An unstable social environment leads to a behavioural camouflage strategy, hypothesised to be beneficial at times of socially challenging situations...
2017: Frontiers in Zoology
https://www.readbyqxmd.com/read/28095432/exploring-maternal-health-care-seeking-behavior-of-married-adolescent-girls-in-bangladesh-a-social-ecological-approach
#3
Asm Shahabuddin, Christiana Nöstlinger, Thérèse Delvaux, Malabika Sarker, Alexandre Delamou, Azucena Bardají, Jacqueline E W Broerse, Vincent De Brouwere
BACKGROUND: The huge proportion of child marriage contributes to high rates of pregnancies among adolescent girls in Bangladesh. Despite substantial progress in reducing maternal mortality in the last two decades, the rate of adolescent pregnancy remains high. The use of skilled maternal health services is still low in Bangladesh. Several quantitative studies described the use of skilled maternal health services among adolescent girls. So far, very little qualitative evidence exists about attitudes and practices related to maternal health...
2017: PloS One
https://www.readbyqxmd.com/read/28088438/a-snapshot-of-urban-adolescent-women-s-contraceptive-knowledge-at-the-onset-of-a-community-larc-promotion-initiative
#4
K B Greenberg, S C Jenks, N G Piazza, B R Malibiran, C A Aligne
STUDY OBJECTIVE: To contextualize young women's knowledge and attitudes regarding contraception at the outset of an intervention promoting long-acting reversible contraceptives (LARC) for teen pregnancy prevention. DESIGN: and Setting: Our intervention is based on diffusion of innovation theory, and at the outset we were interested in likely early adopters' existing knowledge and attitudes towards contraception. This mixed methods study consists of focus groups within positive youth development programs in Rochester, New York; we discussed young women's knowledge and sources of information for all FDA-approved contraceptive methods...
January 11, 2017: Journal of Pediatric and Adolescent Gynecology
https://www.readbyqxmd.com/read/28079354/effect-of-excess-iodine-intake-on-thyroid-on-human-health
#5
Eftychia G Koukkou, Nikolaos D Roupas, Kostas B Markou
INTRODUCTION: The recommended daily intake of iodide, is 150 μg for adolescents and adults, 175 μg for pregnancy and 200 μg for lactation. Thyroid gland is an effective collector of iodine. EVIDENCE ACQUISITION: The active iodine uptake along the basolateral membrane of thyroid cell is followed by its transport to the apical edge of the cell and then to the follicle lumen. TSH acts through cAMP and stimulates NIS gene expression and protein synthesis. The major proportion of iodine in the thyroid gland is bound to Thyroglobulin...
January 12, 2017: Minerva Medica
https://www.readbyqxmd.com/read/28074980/-implications-of-chilean-legal-framework-in-teen-pregnancy-prevention-conflict-and-insecurity-in-health-professionals
#6
Carolina Luttges D, Carolina Leyton M, Ingrid Leal F, Paulina Troncoso E, Temístocles Molina G
BACKGROUND: Teenage pregnancy is a psychosocial and multifactorial problem described as a lack of exercise of rights in sexual and reproductive health. There are important aspects in the doctor-patient relationship and confidentiality that directly affect the continuity and quality of care. There are controversies in the laws relating to the provision of contraception and confidentiality, and those that protect the sexual indemnity, especially in adolescents under 14 years. AIM: To describe the implications of the legal framework for professional midwives in the care of adolescents younger than 14 years in sexual and reproductive health...
October 2016: Revista Médica de Chile
https://www.readbyqxmd.com/read/28069900/impact-of-donor-and-recipient-adiposity-on-feto-placental-growth-in-adolescent-sheep
#7
Jacqueline M Wallace, John S Milne, Clare L Adam, Raymond P Aitken
The influence of maternal obesity during oocyte development and its putative interaction with nutrient reserves at conception on pregnancy outcome were examined in an adolescent sheep model. Donor ewes were nutritionally managed to achieve contrasting adiposity (control [CD]/obese [ObD]) for 6 weeks prior to superovulation, and inseminated by a non-obese sire. Morulae from 6 CD and 7 ObD were transferred in singleton into adolescent recipients of identical age but differing adiposity, classified as relatively fat or thin, respectively...
January 9, 2017: Reproduction: the Official Journal of the Society for the Study of Fertility
https://www.readbyqxmd.com/read/28068940/early-life-socioeconomic-environment-and-mammographic-breast-density
#8
Parisa Tehranifar, Barbara A Cohn, Julie D Flom, Angeline Protacio, Piera Cirillo, L H Lumey, Karin B Michels, Mary Beth Terry
BACKGROUND: Early life social environment may influence breast cancer through shaping risk factors operating in early life, adolescence and adulthood, or may be associated with breast cancer risk independent of known risk factors. We investigated the associations between early life socioeconomic status (SES) and mammographic density, a strong risk factor for breast cancer, and the extent to which these associations were independent of risk factors across the lifecourse. METHODS: We used data from an adult follow-up study of two U...
January 10, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28065521/perceived-dual-method-responsibilities-by-relationship-type-among-african-american-male-adolescents
#9
Melissa Gilliam, Elisabeth Woodhams, Heather Sipsma, Brandon Hill
PURPOSE: To describe the extent to which African-American male adolescents perceive responsibility for contraception and condom use and to understand the perceived importance of dual method use for respondents in casual versus committed relationships. METHODS: Data were collected using surveys informed by formative focus group sessions. Participants included African-American male high-school students aged 14-19 years from the Chicago's South Side. Respondents were surveyed regarding contraceptive behavioral intentions and perceived importance of dual method use...
January 5, 2017: Journal of Adolescent Health: Official Publication of the Society for Adolescent Medicine
https://www.readbyqxmd.com/read/28063260/prevalence-of-communication-between-mothers-and-daughters-on-sexuality-and-associated-factors-in-sagamu-southwest-nigeria
#10
Oluwadamilola A Opawale, Victor J Animasahun, Helena J Chapman
BACKGROUND: As adolescents transition from childhood to adulthood, effective mother-daughter communication on sexuality plays a role in reducing high-risk behaviours linked to human immunodeficiency virus (HIV) infection and early pregnancy and childbirth. The objective of the study was to examine the prevalence of mother-daughter communication on sexuality and associated factors in Sagamu, southwest Nigeria. METHODS: Using multistage sampling, surveys were conducted using 234 female youth enrolled at a secondary school...
January 7, 2017: International Journal of Adolescent Medicine and Health
https://www.readbyqxmd.com/read/28062981/body-size-from-birth-through-adolescence-in-relation-to-risk-of-benign-breast-disease-in-young-women
#11
Catherine S Berkey, Bernard Rosner, Rulla M Tamimi, Walter C Willett, Martha Hickey, Adetunji Toriola, A Lindsay Frazier, Graham A Colditz
PURPOSE: Body size, from birth throughout adulthood, is associated with breast cancer risk, but few studies have investigated early-life body size and benign breast disease (BBD), a well-established breast cancer risk factor. We consider whether prenatal factors and size at birth, 10, 18 year, and intervening growth, are related to BBD risk. METHODS: The Growing Up Today Study includes 9032 females who completed questionnaires annually from 1996 to 2001, then 2003, 2005, 2007, 2010, and 2013...
January 6, 2017: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/28058853/postpartum-adolescents-contraceptive-counselling-preferences
#12
Stephanie Sober, Judy A Shea, Allison G Shaber, Paul G Whittaker, Courtney A Schreiber
OBJECTIVES: The optimal approach for provision and timing of postpartum contraceptive counselling for adolescents has not been established. To reduce repeat pregnancies from current USA levels of nearly 20%, a better understanding is needed of postpartum adolescent females' preferences regarding contraceptive counselling and delivery. METHODS: Semi-structured interviews with 30 USA postpartum teens (97% Black) explored pregnancy prevention and contraceptive counselling...
January 6, 2017: European Journal of Contraception & Reproductive Health Care
https://www.readbyqxmd.com/read/28057876/academic-performance-in-adolescents-born-after-art-a-nationwide-registry-based-cohort-study
#13
A L Spangmose, S S Malchau, L Schmidt, D Vassard, S Rasmussen, A Loft, J Forman, A Pinborg
STUDY QUESTION: Is academic performance in adolescents aged 15-16 years and conceived after ART, measured as test scores in ninth grade, comparable to that for spontaneously conceived (SC) adolescents? SUMMARY ANSWER: ART singletons had a significantly lower mean test score in the adjusted analysis when compared with SC singletons, yet the differences were small and probably not of clinical relevance. WHAT IS KNOWN ALREADY: Previous studies have shown similar intelligence quotient (IQ) levels in ART and SC children, but only a few have been on adolescents...
January 5, 2017: Human Reproduction
https://www.readbyqxmd.com/read/28056564/awareness-and-knowledge-regarding-emergency-contraception-in-berlin-adolescents
#14
Frederik T von Rosen, Antonella J von Rosen, Falk Müller-Riemenschneider, Peter Tinnemann
BACKGROUND: Lack of information has been described as a major factor in non-use of oral emergency contraception (EC) following unprotected intercourse. Despite the ongoing vociferous debate on liberalisation of access, little evidence is available on EC knowledge in Germany, particularly among adolescents. METHODS: We conducted a cross-sectional survey among ninth graders in convenience sample of 13 Berlin schools. We assessed perceived and actual knowledge on the effectiveness, timeframe and availability of EC and on pregnancy risk in six scenarios...
January 6, 2017: European Journal of Contraception & Reproductive Health Care
https://www.readbyqxmd.com/read/28055288/eveningness-as-a-risk-for-behavioral-problems-in-late-adolescence
#15
Ilona Merikanto, Anu-Katriina Pesonen, Liisa Kuula, Jari Lahti, Kati Heinonen, Eero Kajantie, Katri Räikkönen
Circadian preference toward eveningness has been associated with increased risk for mental health problems both in early adolescence and in adulthood. However, in late adolescence, when circadian rhythm naturally shifts to later, its significance for mental health is not clear. Accordingly, we studied how circadian rhythm estimated both by self-reported chronotype and by actigraph-defined midpoint of sleep was associated with self-reported psychiatric problems based on Youth Self Report (YSR). The study builds on a community cohort born in 1998, Helsinki, Finland...
January 5, 2017: Chronobiology International
https://www.readbyqxmd.com/read/28039757/height-deficit-in-early-adulthood-following-substantiated-childhood-maltreatment-a-birth-cohort-study
#16
Amanuel Alemu Abajobir, Steve Kisely, Gail Williams, Lane Strathearn, Jake Moses Najman
Early life stress including childhood maltreatment has been associated with reduced head circumference and/or brain size, cognitive, and academic deficits in children and adolescents. However, little is known about the effect of childhood maltreatment on height, especially in early adulthood. This study was designed to examine the association between confirmed cases of multiple or subtypes of childhood maltreatment and stunted growth in young adulthood controlling for perinatal and familial confounding factors...
December 28, 2016: Child Abuse & Neglect
https://www.readbyqxmd.com/read/28034801/testing-the-correlation-between-experimentally-induced-hypothyroidism-during-pregnancy-and-autistic-like-symptoms-in-the-rat-offspring
#17
Francesca Melancia, Michela Servadio, Sara Schiavi, Patrizia Campolongo, Alexandre Giusti-Paiva, Viviana Trezza
Thyroid hormones are important for the development of the central nervous system. Since the fetal thyroid gland is not functioning until mid-gestation, transport of maternal thyroid hormones across the placenta is essential during the early phases of gestation. Maternal thyroid deficiency has been associated with a higher incidence of neurodevelopmental disorders in the newborns. The relationship between maternal hypothyroidism and the onset of autism spectrum disorders (ASD) in the offspring, however, is still debated...
December 26, 2016: Behavioural Brain Research
https://www.readbyqxmd.com/read/28032409/change-in-receptive-vocabulary-from-childhood-to-adulthood-associated-mental-health-education-and-employment-outcomes
#18
Rebecca Armstrong, Wendy Arnott, David A Copland, Katie McMahon, Asaduzzaman Khan, Jake M Najman, James G Scott
BACKGROUND: Population-based studies have found that early language delays are associated with poorer long-term outcomes in adolescence and adulthood. Few studies have explored the influence of change in language ability over time on adult outcomes. AIM: To examine the educational, vocational and mental health outcomes for adults accounting for different vocabulary developmental profiles over a 16-year period. METHODS & PROCEDURES: A total of 1914 participants of the Mater-University of Queensland Study of Pregnancy (MUSP) were categorized into four groups based on their vocabulary skills at 5 and 21 years: (1) persistently good (n = 1679), (2) persistently poor (n = 33), (3) improved (n = 160), and (4) deteriorated (n = 42)...
December 29, 2016: International Journal of Language & Communication Disorders
https://www.readbyqxmd.com/read/28030408/nurses-on-the-front-lines-improving-adolescent-sexual-and-reproductive-health-across-health-care-settings
#19
Diane Santa Maria, Vincent Guilamo-Ramos, Loretta Sweet Jemmott, Anne Derouin, Antonia Villarruel
: Nurses care for adolescents in a variety of settings, including communities, schools, and public health and acute care clinics, which affords them many opportunities to improve adolescents' sexual and reproductive health and reduce the rates of unplanned pregnancy and sexually transmitted infections. To ensure that adolescents have access to sexual and reproductive health care (which includes both preventive counseling and treatment) in all nursing practice sites, nurses need to gain the knowledge and hone the skills required to deliver evidence-based counseling and services to adolescents and parents...
January 2017: American Journal of Nursing
https://www.readbyqxmd.com/read/28017497/developmental-hemostasis-a-lifespan-from-neonates-and-pregnancy-to-the-young-and-elderly-adult-in-a-european-white-population
#20
Ulrike Nowak-Göttl, Verena Limperger, Gili Kenet, Frauke Degenhardt, Roman Arlt, Justus Domschikowski, Hartmut Clausnizer, Jürgen Liebsch, Ralf Junker, Dagmar Steppat
Absolute values of reference ranges for coagulation assays in humans vary within the entire lifespan and confirm the concept of developmental hemostasis. It is known that physiologic concentrations of coagulation factors (F) gradually increase over age: they are lower in premature infants as compared to full-term babies, healthy children or adults. Here we demonstrate in a cohort of 1011 blood donors and in a group of 193 healthy pregnant women, that the process of developmental hemostasis proceeds in adults...
December 5, 2016: Blood Cells, Molecules & Diseases
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