Results 21 to 30 of about 81,010 (209)

Paternal advanced age and sperm quality are indicators for Preimplantation Genetic Testing in egg donation cycles

Clinical and Experimental Obstetrics & Gynecology, 2021
Background: A wide variety of studies demonstrate the influence of the oocyte source’s age on the success of assisted reproduction treatments; however, the effect of paternal age has been studied to a lesser extent.
Jeimy Pedraza, Hugo Sierra, Jacqueline Cordero, Esther López-Bayghen   +3 more
doaj   +1 more source

Uteroplacental bleeding disorders during pregnancy: do missing paternal characteristics influence risk?

BMC Pregnancy and Childbirth, 2006
Background Several studies have assessed the risks of uteroplacental bleeding disorders in relation to maternal characteristics. The association between uteroplacental bleeding disorders and paternal characteristics, however, has received considerably ...
Vintzileos Anthony M, Ananth Cande V, Getahun Darios   +2 more
doaj   +1 more source

Advanced paternal age directly impacts mouse embryonic placental imprinting.

PLoS ONE, 2020
The placental epigenome plays a critical role in regulating mammalian growth and development. Alterations to placental methylation, often observed at imprinted genes, can lead to adverse pregnancy complications such as intrauterine growth restriction and
Michelle M Denomme, Jason C Parks, Blair R McCallie, Nathan I McCubbin, William B Schoolcraft, Mandy G Katz-Jaffe   +5 more
doaj   +1 more source

Effect of Paternal Age on Miscarriage Rates in Couples Undergoing In Vitro Fertilization/Intracytoplasmic Sperm Injection

Düzce Tıp Fakültesi Dergisi, 2023
Aim: The aim of this study was to determine the effect of paternal age on miscarriage rates in couples undergoing in vitro fertilization/intracytoplasmic sperm injection treatment cycles.
Yaprak Ustun, İnci Kahyaoğlu, Serdar Dilbaz, Huri Güvey, Nazlı Tunca Şanlıer, Kadriye Erdoğan   +5 more
doaj   +1 more source

Is there an association between advanced paternal age and endophenotype deficit levels in schizophrenia? [PDF]

PLoS ONE, 2014
The children of older fathers have increased risks of developing schizophrenia spectrum disorders, and among those who develop these disorders, those with older fathers present with more severe clinical symptoms.
Debby Tsuang, Michelle Esterberg, David Braff, Monica Calkins, Kristin Cadenhead, Dorcas Dobie, Robert Freedman, Michael F Green, Tiffany Greenwood, Raquel Gur, Ruben Gur, William Horan, Laura C Lazzeroni, Gregory A Light, Steven P Millard, Ann Olincy, Keith Nuechterlein, Larry Seidman, Larry Siever, Jeremy Silverman, William Stone, Joyce Sprock, Catherine Sugar, Neal Swerdlow, Ming Tsuang, Bruce Turetsky, Allen Radant   +26 more
doaj   +1 more source

Bio-demographic characteristics of households and risk factors for Down Syndrome in Morocco

Roczniki Panstwowego Zakladu Higieny, 2023
Background. The most studied risk factors for Down Syndrom (DS) were: region of residence, exposure to chemicals, parents’ education level, cigarette and alcohol use by father or mother or both, and oral contraceptive (OC) use. Objective.
Zahra Oulmane, Mohamed Cherkaoui, Rekia Belahsen, Mohamed Kamal Hilali   +3 more
doaj   +1 more source

Report of a Father With Congenital Bilateral Absence of the Vas Deferens Fathering a Child With Beare–Stevenson Syndrome

Frontiers in Genetics, 2020
BackgroundApert, Pfeiffer, and Crouzon syndromes are autosomal dominant diseases characterized by craniosynostosis. They are paternal age effect disorders.
Leonardo C. Ferreira, Leonardo C. Ferreira, José H. Dantas Junior   +2 more
doaj   +1 more source

Impact of increased paternal age on neonatal outcomes in very-low-birth-weight infants

The Journal of Maternal-Fetal & Neonatal Medicine, 2023
Objective Despite the trend of increasing paternal age, its impact on neonatal outcomes, particularly in preterm infants, has not been thoroughly investigated.
Sol Kim, Minsoo Kim, Moon-Yeon Oh, Yumi Seo, Sook Kyung Yum   +4 more
doaj   +1 more source

Paternal age and adverse pregnancy outcomes: a spline analysis from the nulliparous pregnancy outcomes study: monitoring mothers-to-be study

The Journal of Maternal-Fetal & Neonatal Medicine
Objectives Extremes of maternal age are associated with an increased risk of adverse pregnancy outcomes (APOs). Less is known about the independent effects of extremes of paternal age on reproductive risk.Methods We conducted a secondary analysis using ...
Patrick M. Conley, Rachel A. Newman, Tania Esakoff, Natalie A. Bello   +3 more
doaj   +1 more source

Disentangling the roles of maternal and paternal age on birth prevalence of Down syndrome and other chromosomal disorders using a Bayesian modeling approach

BMC Medical Research Methodology, 2019
Background Multiple neonatal and pediatric disorders have been linked to older paternal ages. Combining these findings with the evidence that many men are having children at much later ages generates considerable public health concern.
James A. Thompson
doaj   +1 more source