The onset of maternal behavior in Long-Evans rats was examined after pseudopregnancy (PsP) termination, both with and without exogenous estrogen administration, and in response to either clean or placenta-smeared stimulus pups. Natural (spontaneous) PsP termination was as effective in hastening the onset of maternal behavior as ovariectomy plus estrogen injection. If clean foster pups were presented as soon as pseudopregnancy terminated (first proestrus or cornified smear), maternal behavior was exhibited within 2 days; placenta-smeared foster pups presented at the same time elicited maternal behavior within 2 hr. The combination of initiating maternal-behavior testing immediately after the natural termination of pseudopregnancy and proffering placenta-smeared pups apparently simulates the hormonal milieu as well as the environmental cues present at parturition, noninvasively, producing optimal conditions for the rapid induction of maternal behavior.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1037//0735-7044.101.2.219 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Maternal sucrose consumption alters steroid levels in the mother, placenta, and fetus.
J Endocrinol
January 2025
K Soma, Psychology, The University of British Columbia, Vancouver, V6T 1Z4, Canada.
Maternal diet has long-term effects on offspring brain development and behavior. Sucrose (table sugar) intakes are high in modern diets, but it is not clear how a maternal high-sucrose diet (HSD) affects the offspring. In rats, a maternal HSD (26% of calories from sucrose, which is human-relevant) alters maternal metabolism and brain and also alters adult offspring endocrinology and behavior in a sex-specific manner.
View Article and Find Full Text PDFThe association of chronotype, sleep duration and trajectories of health-risk behaviors among college students: a cohort study.
Child Adolesc Psychiatry Ment Health
January 2025
Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University, No. 81 Meishan Road, Hefei, 230032, Anhui, China.
Purpose: To describe the trajectories of health-risk behaviors (HRBs) among college students through four consecutive surveys and explore the relationship between chronotype, sleep duration and different trajectories of HRBs.
Methods: We used a data sample of 1,042 college students from the College Student Behavior and Health Cohort Study. Students reported sleep parameters, including chronotype (Morningness-Eveningness Questionnaire-5, MEQ-5) and sleep duration.
Antenatal care and breastfeeding practices in Sub-Saharan Africa: an analysis of demographic and health surveys.
BMC Pregnancy Childbirth
January 2025
Department of Behavioral and Community Health Sciences, University of Pittsburgh School of Public Health, Pittsburgh, PA, USA.
Background: The World Health Organization (WHO) recommends immediate breastfeeding (within the first hour after birth) and exclusive breastfeeding (for the first six months of life), particularly in low-resource settings such as sub-Saharan Africa. In 2016, WHO updated its antenatal care (ANC) guidelines, recommending at least eight (8+) ANC contacts during pregnancy to improve maternal and child health outcomes. This study investigates i) trends in breastfeeding practices across sub-Saharan Africa following the rollout of the revised WHO 2016 ANC policy and ii) the relationship between ANC uptake and exclusive or early breastfeeding.
View Article and Find Full Text PDFMenthol cigarette use in US pregnancies: Prevalence, racial/ethnic disparities, and associated characteristics from the 2010-2019 National Survey on Drug Use and Health (NSDUH).
Nicotine Tob Res
January 2025
Behavioral Health and Health Policy, Westat, 1600 Research Blvd, Rockville, MD 20850, United States.
Introduction: Pregnant people who smoke constitute a uniquely vulnerable population likely to be impacted by a menthol cigarette (MC) ban. However, there are no published reports of prevalence of prenatal MC use in a nationally-representative US sample including racial-ethnic disparities and associated characteristics.
Methods: Participants were 1245 US pregnant people who smoked MC or non-MC (NMC) in the past 30-days from the 2010-2019 National Survey on Drug Use and Health.
Assessment of Four Essential Features of the Alive & Thrive Initiative to Improve Maternal, Infant, Young Child, and Adolescent Nutrition.
Matern Child Nutr
January 2025
ELEVATE Nutrition, Washington, District of Columbia, USA.
Alive & Thrive has been a major global nutrition initiative that aimed to learn how to improve maternal, infant, young child, and adolescent nutrition and health on a large scale. During 2009-2014, Alive & Thrive developed and implemented interventions to improve infant and young child feeding at scale in three countries. Subsequently, Alive & Thrive expanded its work to more than 15 geographies, including six country-specific and two regional programs, to additionally address maternal and adolescent nutrition while adding agriculture and social protection programs to improve maternal, infant, and young child nutrition.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!