My Baby, My Move+: feasibility of a community prenatal wellbeing intervention.

BACKGROUND: Excessive gestational weight gain (EGWG), insufficient prenatal physical activity and sleep, and poor psychological wellbeing independently increase risks for adverse maternal and infant outcomes. A novel approach to mitigate these risks is utilizing peer support in a community-based prenatal intervention. This study assessed the feasibility (acceptability, demand, implementation, and practicality) of a remotely delivered prenatal physical activity intervention called My Baby, My Move + (MBMM +) that aims to increase prenatal physical activity, enhance mood and sleep hygiene, and reduce EGWG. METHODS: Participants were recruited through community organizations, local clinics, and social media platforms in the Fall of 2020 and Spring of 2021. Eligible pregnant women were randomized to either the MBMM + intervention or the control group. Each group met over Zoom for 16 sessions (twice weekly for 60 min over 8 weeks) to learn either behavioral change and wellbeing knowledge and skills (MBMM +) or knowledge and skills related to parenting (control group). Multiple methods of evaluation to better understand the feasibility of the intervention were conducted. RESULTS: A total of 49 women (25 MBMM + intervention, 24 control) completed both pre- and post-survey assessments and were included in the analyses. A subsample of 19 (39%) intervention participants completed a combination of semi-structured interviews/surveys to assess acceptability, demand, implementation, and practicality. Participants expressed positive feedback regarding acceptability (satisfaction and intent to continue use) and were extremely likely or likely to recommend the program to a friend (demand). Implementation metrics were assessed by observation and feedback forms completed by peer leaders and demonstrated high-quality control. Findings suggest that the intervention was practical due to remote sessions and cost-effectiveness. CONCLUSION: The MBMM + intervention was deemed to be a feasible intervention with high acceptability, demand, implementation, and practicality. These findings can be used to inform the scalability of the intervention and implementation of a larger efficacy trial. TRIAL REGISTRATION: 19-1366, initial date is on January 23, 2020.

Parents' Mental Health Experiences during the Perinatal Transition: A Qualitative Study.

Capturing the voices of both parents regarding perinatal mental health is imperative. This qualitative study employed a purposive sampling technique to interview 23 individuals, including mothers, partners, and perinatal practitioners/educators. Qualitative data analysis utilized an inductive, data-driven approach. Four themes emerged. First, mothers' perception of risk of postpartum depression (PPD) changed over time and with subsequent children. Theme two focused on identity loss. Third, the stay-at-home parent often feels unrecognized by their partner. Fourth, a PPD prevention class for parents should include certain key elements. These themes can aid practitioners in prioritizing the needs of parents during the perinatal period.

Anxiety among fathers during the prenatal and postpartum period: a meta-analysis.

INTRODUCTION: The purpose of this review was to determine the prevalence of anxiety among fathers during the perinatal (pre- and post-natal) period. METHODS: A systematic search was conducted to identify studies published between 1995-2020. One hundred and seventy-two of the records met inclusion criteria and full texts were screened for eligibility. The authors followed PRISMA guidelines to extract the data. RESULTS: A total of 23 studies, representing 40,124 participants, are included in this meta-analysis. The overall random effects estimate of paternal perinatal anxiety was 10.69% (95% confidence interval (CI): 8.14 - 13.91%). Rates of paternal perinatal anxiety demonstrated significant heterogeneity that was large in magnitude (Q = 304,494, p < .001, I2 = 99.93 and τ2 = .5381). Study quality rating did not appear to moderate rates of paternal perinatal anxiety (low: 10.74%; 95% CI: 6.56-17.11%; high: 10.65%; 95% CI: 6.02- 18.15%). DISCUSSION: Paternal perinatal anxiety rates in this meta-analysis are considerably higher than the global WHO regional prevalence rates for anxiety among men suggesting the transition into parenthood may place men at greater risk for anxiety.

De novo polyamine synthesis supports metabolic and functional responses in activated murine NK cells.

Cellular metabolism is dynamically regulated in NK cells and strongly influences their responses. Metabolic dysfunction is linked to defective NK cell responses in diseases such as obesity and cancer. The transcription factors, sterol regulatory element binding protein (SREBP) and cMyc, are crucial for controlling NK cell metabolic and functional responses, though the mechanisms involved are not fully understood. This study reveals a new role for SREBP in NK cells in supporting de novo polyamine synthesis through facilitating elevated cMyc expression. Polyamines have diverse roles and their de novo synthesis is required for NK cell glycolytic and oxidative metabolism and to support optimal NK cell effector functions. When NK cells with impaired SREBP activity were supplemented with exogenous polyamines, NK cell metabolic defects were not rescued but these NK cells displayed significant improvement in some effector functions. One role for polyamines is in the control of protein translation where spermidine supports the posttranslational hypusination of translation factor eIF5a. Pharmacological inhibition of hypusination also impacts upon NK cell metabolism and effector function. Considering recent evidence that cholesterol-rich tumor microenvironments inhibit SREBP activation and drive lymphocyte dysfunction, this study provides key mechanistic insight into this tumor-evasion strategy.

Mental Health During the COVID-19 Pandemic in the United States: Online Survey.

BACKGROUND: The COVID-19 pandemic has had numerous worldwide effects. In the United States, there have been 8.3 million cases and nearly 222,000 deaths as of October 21, 2020. Based on previous studies of mental health during outbreaks, the mental health of the population will be negatively affected in the aftermath of this pandemic. The long-term nature of this pandemic may lead to unforeseen mental health outcomes and/or unexpected relationships between demographic factors and mental health outcomes. OBJECTIVE: This research focused on assessing the mental health status of adults in the United States during the early weeks of an unfolding pandemic. METHODS: Data was collected from English-speaking adults from early April to early June 2020 using an online survey. The final convenience sample included 1083 US residents. The 71-item survey consisted of demographic questions, mental health and well-being measures, a coping mechanisms checklist, and questions about COVID-19-specific concerns. Hierarchical multivariable logistic regression was used to explore associations among demographic variables and mental health outcomes. Hierarchical linear regression was conducted to examine associations among demographic variables, COVID-19-specific concerns, and mental health and well-being outcomes. RESULTS: Approximately 50% (536/1076) of the US sample was aged ≥45 years. Most of the sample was White (1013/1054, 96%), non-Hispanic (985/1058, 93%), and female (884/1073, 82%). Participants reported high rates of depression (295/1034, 29%), anxiety (342/1007, 34%), and stress (773/1058, 73%). Older individuals were less likely to report depressive symptomology (OR 0.78, P<.001) and anxiety symptomology (OR 0.72, P<.001); in addition, they had lower stress scores (-0.15 points, SE 0.01, P<.001) and increased well-being scores (1.86 points, SE 0.22, P<.001). Individuals who were no longer working due to COVID-19 were 2.25 times more likely to report symptoms of depression (P=.02), had a 0.51-point increase in stress (SE 0.17, P=.02), and a 3.9-point decrease in well-being scores (SE 1.49, P=.009) compared to individuals who were working remotely before and after COVID-19. Individuals who had partial or no insurance coverage were 2-3 times more likely to report depressive symptomology compared to individuals with full coverage (P=.02 and P=.01, respectively). Individuals who were on Medicare/Medicaid and individuals with no coverage were 1.97 and 4.48 times more likely to report moderate or severe anxiety, respectively (P=.03 and P=.01, respectively). Financial and food access concerns were significantly and positively related to depression, anxiety, and stress (all P<.05), and significantly negatively related to well-being (both P<.001). Economy, illness, and death concerns were significantly positively related to overall stress scores (all P<.05). CONCLUSIONS: Our findings suggest that many US residents are experiencing high stress, depressive, and anxiety symptomatology, especially those who are underinsured, uninsured, or unemployed. Longitudinal investigation of these variables is recommended. Health practitioners may provide opportunities to allay concerns or offer coping techniques to individuals in need of mental health care. These messages should be shared in person and through practice websites and social media.

Metabolic but not transcriptional regulation by PKM2 is important for natural killer cell responses.

Natural Killer (NK) cells have an important role in immune responses to viruses and tumours. Integrating changes in signal transduction pathways and cellular metabolism is essential for effective NK cells responses. The glycolytic enzyme Pyruvate Kinase Muscle 2 (PKM2) has described roles in regulating glycolytic flux and signal transduction, particularly gene transcription. While PKM2 expression is robustly induced in activated NK cells, mice lacking PKM2 in NK cells showed no defect in NK cell metabolism, transcription or antiviral responses to MCMV infection. NK cell metabolism was maintained due to compensatory PKM1 expression in PKM2-null NK cells. To further investigate the role of PKM2, we used TEPP-46, which increases PKM2 catalytic activity while inhibiting any PKM2 signalling functions. NK cells activated with TEPP-46 had reduced effector function due to TEPP-46-induced increases in oxidative stress. Overall, PKM2-regulated glycolytic metabolism and redox status, not transcriptional control, facilitate optimal NK cells responses.

A Mixed-Methods Pilot Study of Perinatal Risk and Resilience During COVID-19.

Introduction/Objectives: National guidelines underscore the need for improvement in the detection and treatment of mood disorders in the perinatal period. Exposure to disasters can amplify perinatal mood disorders and even have intergenerational impacts. The primary aim of this pilot study was to use mixed-methods to better understand the mental health and well-being effects of the coronavirus disease 2019 (COVID-19) pandemic, as well as sources of resilience, among women during the perinatal period. Methods: The study team used a simultaneous exploratory mixed-methods design to investigate the primary objective. Thirty-one pregnant and postpartum women participated in phone interviews and were invited to complete an online survey which included validated mental health and well-being measures. Results: Approximately 12% of the sample reported high depressive symptomatology and 60% reported moderate or severe anxiety. Forty percent of the sample reported being lonely. The primary themes related to stress were uncertainty surrounding perinatal care, exposure risk for both mother and baby, inconsistent messaging from information sources and lack of support networks. Participants identified various sources of resilience, including the use of virtual communication platforms, engaging in self-care behaviors (eg, adequate sleep, physical activity, and healthy eating), partner emotional support, being outdoors, gratitude, and adhering to structures and routines. Conclusions: Since the onset of COVID-19, many pregnant and postpartum women report struggling with stress, depression, and anxiety symptomatology. Findings from this pilot study begin to inform future intervention work to best support this highly vulnerable population.

Glucose represses dendritic cell-induced T cell responses.

Glucose and glycolysis are important for the proinflammatory functions of many immune cells, and depletion of glucose in pathological microenvironments is associated with defective immune responses. Here we show a contrasting function for glucose in dendritic cells (DCs), as glucose represses the proinflammatory output of LPS-stimulated DCs and inhibits DC-induced T-cell responses. A glucose-sensitive signal transduction circuit involving the mTOR complex 1 (mTORC1), HIF1α and inducible nitric oxide synthase (iNOS) coordinates DC metabolism and function to limit DC-stimulated T-cell responses. When multiple T cells interact with a DC, they compete for nutrients, which can limit glucose availability to the DCs. In such DCs, glucose-dependent signalling is inhibited, altering DC outputs and enhancing T-cell responses. These data reveal a mechanism by which T cells regulate the DC microenvironment to control DC-induced T-cell responses and indicate that glucose is an important signal for shaping immune responses.

Nutrient sensing, signal transduction and immune responses.

Most cells in the body have a constant supply of nutrients, which are required to sustain cellular metabolism and functions. In contrast, cells of the immune system can encounter conditions with a limited nutrient supply during the course of an immune response. Cells of the immune system frequently operate in complex nutrient restricted microenvironments such as tumour or inflammatory sites. The concentrations of key nutrients such as glucose and certain amino acids, can be low at these sites, and this can have an impact upon immune cell function. Nutrient sufficiency is important to supply the metabolic and biosynthetic pathways of immune cells. In addition nutrients can also act as important cues that influence immunological signalling pathways to affect the function of immune cells. This review will describe the various nutrient sensing signalling pathways and discuss the evidence that nutrients are critical signals that shape immune responses.

The DePICTORS Study: discrepancies in preliminary interpretation of CT scans between on-call residents and staff.

At many academic hospitals, radiology residents provide preliminary interpretations of CT studies performed outside of regular working hours. We examined the rate of discrepancies between resident interpretations and final reports issued by staff. We prospectively obtained 1,756 preliminary reports and corresponding final reports for computed tomography (CT) scans performed on call between November 2006 and March 2007. The overall rate of clinically significant discrepancies (those that would potentially alter the patient's clinical course prior to issue of the final report) was 2.0%. Major discrepancy rates for abdominal/pelvic, chest, cervical spine and head CT were 4.1%, 2.5%, 1.0% and 0.7%, respectively. Senior residents had fewer major discrepancies compared to their junior colleagues. Time of interpretation was also evaluated, but a statistically significant relationship was not observed. In summary, this study demonstrates a low discrepancy rate between residents and staff radiologists and identifies areas where after-hours service may be further improved.