Biological embedding: evaluation and analysis of an emerging concept for nursing scholarship

Current Weight Status of Sexually Assaulted Pediatric Female Patients in an Emergency Department Setting

Background: The relationship between childhood sexual abuse (CSA) and childhood obesity (CO) is unclear with studies reporting conflicting results in female populations. This study aims to assess the association between suspected CSA and current emergency department (ED) weight status when compared with trauma patients. Methods: This is a single-center retrospective case-control study that utilized pediatric ED data (2016-2018) from identified female patients (6-17 years old) with a chief complaint of sexual assault and trauma registry patients. Focus was on female patients for literary comparisons. Two weight measurements were calculated based on available height data: BMI-for-age and weight-for-age. Nonparametric testing and binary logistic regression were utilized. Results: There were 2044 study participants: 1454 (71.1%) cases and 590 (28.9%) controls. Cases were older, underrepresented minorities (URMs), and carried public insurance (all p-values <0.001). Using BMI-for-age, patients with a sexual assault complaint had a 67% increased odds for CO after adjusting for age, URM status, and insurance type [adjusted odds ratio (aOR) = 1.67 (95% confidence intervals [CIs] 1.07-2.62); p-value = 0.03], whereas the weight-for-age metric increased the aOR odds by 58% [aOR = 1.58 (95% CI 1.14-2.17); p-value = 0.01] when compared with pediatric trauma patients. Similar results were found in a sensitivity analysis using patients matched on age and URM. Conclusion: Our data demonstrated an association between suspected CSA and CO. More research is needed to identify the biopsychosocial implications for this relationship and the potential to augment clinical care.

Prenatal and Intrapartum Factors Associated With Infant Temperament: A Systematic Review

Background: Temperament involves individual variations in behavioural tendencies of emotional responses and reactions to stimuli after birth. Because 'foetal programming' is a strong hypothesis in developing temperament, prenatal and intrapartum factors may be significant determinants of infant temperament. This systematic literature review aims to elucidate the evidence of prenatal and intrapartum predictors, including genetic, biological, environmental, socio-demographic, psychological, and obstetric factors of parents and their child. Methods: Relevant articles were searched using MEDLINE, PubMed, and SCOPUS. The inclusion criteria were (a) original research article, (b) written in English, (c) assessed the temperament of infants 12 months old or younger as an outcome variable, and (d) investigated prenatal and intrapartum factorial variables of infant temperament. Following the PRISMA guideline, the articles found in the three databases were screened and selected according to the inclusion and exclusion criteria before the final review. Results: Finally, 35 articles were reviewed. This systematic review identified a variety of prenatal and intrapartum factors that were significantly associated with infant temperament: (1) genetic and biological factors: certain genotypes, maternal cortisol and ACTH, and CRHs, (2) environmental factors: substance use such as tobacco, alcohol, and illegal drugs, (3) socio-demographic factor: lower-income, (4) psychological factors: depression or anxiety, eating disorders, personality types of mothers, and domestic violence, and (5) obstetric factors: foetal growth (birth weight), hypertension in mothers, nausea (emesis), and preterm birth. Conclusion: The findings support gene-environment interaction and biological mechanisms for developing infant temperament, suggesting the importance of ensuring a safe and comfortable environment for pregnant mothers, unborn infants, and families during pregnancy and delivery.

The biological embedding of neonatal stress exposure: A conceptual model describing the mechanisms of stress-induced neurodevelopmental impairment in preterm infants

The biological embedding of early life stress exposure may result in life-long neurodevelopmental impairment in preterm infants. Infants hospitalized in the neonatal intensive care unit are exposed to significant experiential, environmental, and physiologic stressors over the course of their extended hospitalization. Stress exposure during the sensitive period of brain development may alter biological processes, including functioning of the immune system, the autonomic nervous system, and the hypothalamic-pituitary-adrenal axis as well as gene expression. These alterations may subsequently affect brain structure and function. Changes to these processes may mediate the relationship between neonatal stress exposure and neurodevelopment in preterm infants and represent potential therapeutic targets to improve long-term outcomes. The purpose of this paper is to introduce a conceptual model, based on published research, that describes the mechanisms mediating stress exposure and neurodevelopment impairment in preterm infants and to provide the theoretical foundation on which to base future descriptive research, intervention studies, and clinical care.