Effects of cognitive-behavioural therapy for stress management on stress and hair cortisol levels in pregnant women: A randomised controlled trial

The role of resilience in the potential benefits of cognitive-behavioural stress management therapy during pregnancy

PURPOSE

Stress during pregnancy has many negative repercussions on maternal and foetal health. It is therefore important to understand which therapies are effective in reducing stress levels and which variables influence the outcomes of these therapies. In this line, psychological resilience could play a key role. Thus, the aim of the study was to check whether pregnant women with different levels of resilience have different benefits in reducing cortisol levels, perceived stress, pregnancy worries, stress vulnerability, anxiety or depression through Cognitive Behavioural Stress Management Therapy.

METHOD

The total sample consisted of 56 pregnant women: one group of pregnant women with high levels of resilience (n = 35); and another group with low levels of resilience (n = 21). Participants' cortisol concentration levels, perceived stress, pregnancy concerns, stress vulnerability, anxiety and depressive symptoms were assessed before and after therapy. Linear mixed models were performed to compare the two groups, which showed a group x time interaction for perceived stress.

RESULTS

The low resilience group showed a reduction in their perceived stress levels with a medium effect after the intervention compared to the high resilience group, but no reduction was found in this group. No differences were found between the two groups on the other variables.

CONCLUSION

Knowing which variables have a differential effect on the results of psychological therapy would allow delimiting the groups that obtain greater benefits from the therapy. This may lead to more efficient implementation of effective intervention programmes.

Effects of a prenatal anxiety randomized controlled trial intervention on infant development in Pakistan

OBJECTIVES

Given that infant development is influenced by caregiver mental health, we tested whether an intervention to reduce antenatal anxiety could affect infant development. A secondary aim was to test depressive symptoms, maternal responsiveness, and maternal infant bonding as mediators of this relationship.

METHODS

Between 2020 and 2022, pregnant women participated in a randomized controlled trial of the Happy Mother-Healthy Baby (HMHB) program based on cognitive behavioral therapy. We collected data on child development from 202 intervention and 198 control participants in a public hospital in Pakistan. Child development was measured using the Ages and Stages Questionnaires-Version 3 at six weeks postpartum. Using intent-to-treat analyses, we examined whether the intervention was associated with performance on the five ASQ-3 domains. Causal mediation analysis was used to assess depressive symptoms, bonding, and maternal-infant responsiveness as mediators.

RESULTS

Socio-demographic characteristics were evenly distributed between study arms. Intervention arm infants showed a 2.1-point increase (95% CI: 0.12, 4.17) in communication scores compared to controls. Though not achieving statistical significance, intervention infants also showed a 2.0-point increase (95% CI:-0.06, 4.09) in gross motor development performance. Bonding, depression, and responsiveness were mediators between the intervention and infant communication (Bindirect=1.94 (95%CI: 0.86, 3.25) depression; Bindirect=0.57 (95% CI: 0.09, 1.16) bonding; Bindirect=0.53 (95% CI: 0.01, 1.21) responsiveness; and Bindirect=1.94 (95%CI: 0.86, 3.25). Bonding, responsiveness, and depression mediated 25%, 23%, and 87% of the total association, respectively.

CONCLUSIONS

HMHB positively affected infant communication at six-week follow-up. Larger studies with longer follow-up are needed to confirm and extend these findings.

TRIAL REGISTRATION

ClinicalTrials.gov NCT03880032; https://clinicaltrials.gov/ct2/show/NCT03880032.

Contactless exercise intervention in prenatal and postnatal period during COVID-19 lowers the risk of postpartum depression

The COVID-19 pandemic has had a substantial adverse impact on the physical and mental health of pregnant and postpartum women, thereby increasing the risk of postpartum depression (PPD). This study aimed to evaluate the effectiveness of a continuous contactless exercise intervention in reducing the risk of depression during the prenatal and postnatal periods. The study utilized an interactive contactless exercise program consisting of Pilates movement over a 16-week period, with 8 weeks during pregnancy and 8 weeks after childbirth. Metabolic and psychological factors related to postpartum depression, including pain, stress, and stress-response markers, were analyzed. The results showed that the exercise intervention significantly alleviated postpartum depression by improving pain (Oswestry Disability Index: Non-exercise, 11.4 ± 14.8 versus Exercise, - 63.1 ± 18.4, p < .001) and stress factors (Edinburgh Postnatal Depression Scale: Non-exercise, 8.8 ± 8.72 versus Exercise, - 37.6 ± 9.13, p < .001; Perceived Stress Scale: Non-exercise, 9.21 ± 9.35 versus Exercise, - 20.7 ± 14.4, p < .001) caused by physical/structural imbalances in postpartum women. Additionally, the intervention improved the metabolic imbalances commonly observed after childbirth, including reductions in triglyceride (Interaction effect, p = .017), insulin (Interaction effect, p = .032), and cortisol levels (Interaction effect, p < .001), which are recognized risk factors for postpartum depression. Taken together, these findings suggest that contactless online exercise interventions can mitigate postpartum depression by addressing metabolic dysregulation that frequently occurs after delivery, especially in situations of social isolation caused by the pandemic.

The association between psychological resilience and hair cortisol concentration in adults: A systematic review and meta-analysis

BACKGROUND

Resilience measures are typically based on subjective self-assessment, which is prone to bias. Objective biological/physiological measures of resilience are therefore needed. Hair cortisol concentration is a particularly promising candidate as a biomarker for resilience.

METHODS

We conducted a meta-analytic review from inception to April 2023 in PubMed, EMBASE, Cochrane Library, and Psych Info databases. All data were analyzed using a random-effects model.

RESULTS

Eight studies were identified that included a total of 1,064 adults. The random effects model demonstrated that resilience and hair cortisol concentration were inversely correlated (r = -0.18, 95% confidence interval [CI] = -0.27 to -0.09) with substantial heterogeneity (I2 = 54.2%, p = 0.03). The inverse association was stronger in those who were age 40 years or younger compared to those who were over 40 years. The correlation coefficients between psychological resilience and hair cortisol concentration among adults assessed by different resilience measures were r = -0.29 (95% CI = -0.49 to -0.08) for the CD-RISC-10; r = -0.21 (95% CI = -0.31 to -0.11) for the CDRISC- 25, and r = -0.08 (95% CI = -0.22 to 0.06) for the BRS. Six of eight studies examined the connection between resilience and perceived stress, where the weighted mean correlation coefficient was r = -0.45 (95% CI = -0.56 to -0.33), with considerable heterogeneity (I2 = 76.2%, p = 0.001).

CONCLUSIONS

There is a negative association between psychological resilience and hair cortisol concentration based on these eight studies. Additional research, particularly prospective studies, is needed to determine whether hair cortisol concentration can be used as a biomarker for psychological resilience.

Hair cortisol as outcome parameter for psychological and neuropsychiatric interventions-a literature review

Background

Studies measuring hair cortisol concentration (HCC) have been increasingly conducted to document stress-related, endocrine changes aggregated over time. Previous studies have shown that HCC reflects abnormalities in the hypothalamic-pituitary-adrenocortical axis (HPA axis) in the context of somatic diseases, such as Cushing's syndrome. HCC variations also reveal a corresponding alteration in HPA-axis-function in mental disorders, highlighting its potential role as a biomarker for interventions targeting mental health problems.

Aims

The aim of this study was to investigate the role of HCC in various psychological and neuropsychiatric interventions and to explore the extent to which HCC can serve as a predictive or outcome parameter in such interventions by conducting a PRISMA-compliant review of the literature.

Methods

From May to July 2022, the databases Web of Science, Google Scholar, PsychINFO, and ResearchGate were systematically searched using different combinations of relevant keywords. Studies of different types that examined HCC in the context of a wide range of psychological and neuropsychiatric interventions were included. Studies in languages other than English or German and animal studies were excluded. The MMAT tool was used, to assesses the Risk of bias.

Results

The initial search identified 334 studies. After applying the inclusion and exclusion criteria, 14 publications with a total number of 1,916 participants were identified. An association between HCC and PTSD, depressive disorders, and ongoing social and family stress can be documented. The effect of relaxation techniques, mental training, CBT, or PTSD therapy on HCC has been studied with equivocal results. Some studies found decreased HCC after treatment, while others did not show a clear effect. Baseline HCC appears to be of particular importance. In some studies, higher baseline HCC was associated with increased treatment response, providing a predictive value for HCC.

Discussion

HCC is increasingly being used as a biomarker for the mapping of psychological and neuropsychiatric interventions. However, due to the wide range of study populations and interventions, results are still heterogeneous. Nevertheless, HCC seems to be an encouraging biological parameter to describe the trajectory of different interventions aimed at improving mental health.

Can we influence the neurological development and hair cortisol concentration of offspring by reducing the stress of the mother during pregnancy? A randomized controlled trial

The objective was to evaluate the effects of a stress management cognitive behavioural therapy followed during pregnancy on subsequent childhood on hair cortisol at birth and on neurodevelopment and Hair Cortisol Concentrations (HCC) at 6 months of age. The study sample included 48 pregnant women, divided into two groups: 24 women in the Therapy Group (TG) and 24 women who received standard pregnancy care (control group (CG); CG). To test the therapy efficacy, an evaluation of the HCC and psychological stress, psychopathological symptomatology and resilience was conducted before and after the treatment. The level of cortisol in their hair was obtained during pregnancy and that of their babies at birth. Six months after birth, a cortisol sample was taken from the hair and the babies' neurodevelopment was evaluated based on a Bayley-III test. The TG presented reductions in psychological stress and psychopathological symptomatology after treatment. On the other hand, the CG increased their cortisol concentrations between the pre and post intervention, remaining stable in the TG. Moreover, results showed that TG babies had lower cortisol concentrations at birth and obtained significantly higher cognitive and motor development scores at 6 months. These findings support that providing psychological care to pregnant women may not only have a benefit on these women's mental state, but may also benefit the neurodevelopment of their offspring.

Investigating the effectiveness of a smart mental health intervention (inMind) for stress reduction during pharmacological treatment for mild to moderate major depressive disorders: Study protocol for a randomized control trial

Background

Although psychological interventions for stress relief, such as cognitive behavioral therapy (CBT) and mindfulness-based stress reduction (MBSR), have been developed, they have not been widely used in treating depression. The use of mobile devices can increase the possibility of actual use by integrating interventions and reducing the difficulty and cost burden of treatment application. This study aims to determine whether "inMind," an integrated mobile application for stress reduction, developed for the general population, decreases stress for patients with mild to moderate major depressive disorder during the pharmacological treatment period.

Methods

This study is a single-blind, multicenter, randomized, controlled crossover trial. The App, developed in Republic of Korea, provides integrated interventions for stress reduction for the general population through three modules based on mindfulness-based stress reduction, cognitive behavior therapy, and relaxation sounds that are known to be effective in stress reduction ("meditation," "cognitive approach," and "relaxation sounds," respectively). Participants (n = 215) recruited via medical practitioner referral will be randomized to an App first group (fAPP) or a wait list crossover group (dAPP). The study will be conducted over 8 weeks; the fAPP group will use the App for the first 4 weeks and the dAPP group for the next 4 weeks. During all study periods, participants will receive their usual pharmacological treatment. The Depression Anxiety Stress Scale-21 is the primary outcome measure. The analysis will employ repeated measurements using a mixed-model approach.

Discussion

The App can potentially be an important addition to depression treatment because of its applicability and the comprehensive nature of the interventions that covers diverse stress-relieving models.

Clinical trial registration

https://clinicaltrials.gov/ct2/show/NCT05312203, identifier 2021GR0585.

A Nested Case-Control Study of Allopregnanolone and Preterm Birth in the Healthy Start Cohort

Context

Chronic stress is a risk factor for preterm birth; however, objective measures of stress in pregnancy are limited. Maternal stress biomarkers may fill this gap. Steroid hormones and neurosteroids such as allopregnanolone (ALLO) play important roles in stress physiology and pregnancy maintenance and therefore may be promising for preterm birth prediction.

Objective

We evaluated maternal serum ALLO, progesterone, cortisol, cortisone, pregnanolone, and epipregnanolone twice in gestation to evaluate associations with preterm birth.

Methods

We performed a nested case-control study using biobanked fasting serum samples from the Healthy Start prebirth cohort. We included healthy women with a singleton pregnancy and matched preterm cases with term controls (1:1; N = 27 per group). We used a new HPLC-tandem mass spectrometry assay to quantify ALLO and five related steroids. We used ANOVA, Fisher exact, χ², t test, and linear and logistic regression as statistical tests.

Results

Maternal serum ALLO did not associate with preterm birth nor differ between groups. Mean cortisol levels were significantly higher in the preterm group early in pregnancy (13w0d-18w0d; P < 0.05) and higher early pregnancy cortisol associated with increased odds of preterm birth (at 13w0d; odds ratio, 1.007; 95% CI, 1.0002-1.014). Progesterone, cortisone, pregnanolone, and epipregnanolone did not associate with preterm birth.

Conclusion

The findings from our pilot study suggest potential utility of cortisol as a maternal serum biomarker for preterm birth risk assessment in early pregnancy. Further evaluation using larger cohorts and additional gestational timepoints for ALLO and the other analytes may be informative.

Online cognitive behavioural therapy as a psychological vaccine against stress during the COVID-19 pandemic in pregnant women: A randomised controlled trial

The COVID-19 pandemic has affected the population's levels of stress and anxiety due to its contagious nature and the uncertainties generated by its novelty. One population that is especially vulnerable to these psychological consequences are pregnant women. This is why the objective of this study was to test the efficacy of an online stress management programme of a cognitive behavioural nature on pregnant women during the COVID-19 pandemic, in Spain. The trial was controlled and randomised, with a total of 207 pregnant women divided into three groups: the Online Cognitive Behavioural Therapy group (o-CBT) (N = 70); the Online Psychological Support group (o-PS) (N = 69); and the Usual Care group (UC) (N = 68). To test the therapy's efficacy, the women's resilience, perceived stress, pregnancy-specific stress and psychopathological symptoms were assessed before and after the intervention. The o-CBT and o-PS consisted of a programme of 8 group sessions (one per week). The results showed that pregnant women who participated in the o-CBT group presented lower rates of pregnancy-specific stress and perceived stress, as well as greater resilience and lower anxiety, depression and obsessions-compulsions symptoms. These data show the efficacy of the treatment programme and thus confirm the importance of implementing these types of interventions during a woman's pregnancy, especially over periods of major stress, such as during a pandemic.

Resilience, stress and anxiety in pregnancy before and throughout the pandemic: a structural equation modelling approach

The present study explored and compared the link between resilience and pregnancy-related stress, perceived stress, and anxiety, employing two structural equation models. One model focused on pregnant women before the outbreak of the pandemic, and the other on pregnancies throughout the pandemic. For this purpose, a total sample of 690 women during their pregnancy were collected: the Pre-Pandemic Group (P-PG) was composed of 341 pregnant women evaluated prior to the pandemic; and 349 pregnant women assessed at the time of the pandemic constituted the Pandemic Group (PG). The resilience, pregnancy-related stress, perceived stress, and anxiety symptomatology of the women were assessed. For both samples, resilience was found to lower levels of pregnancy-specific stress, as well as general perceived stress, and anxiety symptomatology. Furthermore, pregnancy-specific stress and perceived stress showed a covariance relationship and, that these, in turn, increased the anxiety. Moreover, the PG showed greater levels of pregnancy-specific stress, anxiety, somatisations, and obsessions-compulsions, while the P-PG presented higher perceived stress levels.

Deleterious effects of nervous system in the offspring following maternal SARS-CoV-2 infection during the COVID-19 pandemic

During the Coronavirus disease 2019 (COVID-19) pandemic, severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is universally susceptible to all types of populations. In addition to the elderly and children becoming the groups of great concern, pregnant women carrying new lives need to be even more alert to SARS-CoV-2 infection. Studies have shown that pregnant women infected with SARS-CoV-2 can lead to brain damage and post-birth psychiatric disorders in offspring. It has been widely recognized that SARS-CoV-2 can affect the development of the fetal nervous system directly or indirectly. Pregnant women are recommended to mitigate the effects of COVID-19 on the fetus through vaccination, nutritional supplements, and psychological support. This review summarizes the possible mechanisms of the nervous system effects of SARS-CoV-2 infection on their offspring during the pregnancy and analyzes the available prophylactic and treatment strategies to improve the prognosis of fetal-related neuropsychiatric diseases after birth.

Understanding and Reducing Persistent Racial Disparities in Preterm Birth: a Model of Stress-Induced Developmental Plasticity

Preterm birth is a leading cause of neonatal mortality and is characterized by substantial racial disparities in the US. Despite efforts to reduce preterm birth, rates have risen and racial disparities persist. Maternal stress is a risk factor for preterm birth; however, often, it is treated as a secondary variable rather than a primary target for intervention. Stress is known to affect several biological processes leading to downstream sequelae. Here, we present a model of stress-induced developmental plasticity where maternal stress is a key environmental cue impacting the length of gestation and therefore a primary target for intervention. Black women experience disproportionate and unique maternal stressors related to perceived racism and discrimination. It is therefore not surprising that Black women have disproportionate rates of preterm birth. The downstream effects of racism on preterm birth pathophysiology may reflect an appropriate response to stressors through the highly conserved maternal-fetal-placental neuroendocrine stress axis. This environmentally sensitive system mediates both maternal stress and the timing of birth and is a mechanism by which developmental plasticity occurs. Fortunately, stress does not appear to be an all-or-none variable. Evidence suggests that developmental plasticity is dynamic, functioning on a continuum. Therefore, simple, stress-reducing interventions that support pregnant women may tangibly reduce rates of preterm birth and improve birth outcomes for all women, particularly Black women.

Psychological Treatment Effects Unrelated to Hair-Cortisol and Hair-BDNF Levels in Chronic Tinnitus

BACKGROUND

Currently, there are no objective markers to measure treatment efficacy in chronic (distressing) tinnitus. This study explores whether stress-related biomarkers cortisol and brain-derived neurotrophic factor (BDNF) measured in hair samples of chronic tinnitus patients change after compact multimodal tinnitus-specific cognitive behavioral therapy.

METHODS

In this longitudinal study, hair-cortisol and hair-BDNF levels, self-reported tinnitus-related distress (Tinnitus Questionnaire; TQ), and perceived stress (Perceived Stress Questionnaire; PSQ-20) were assessed before and 3 months after 5 days of treatment in N = 80 chronic tinnitus patients. Linear mixed-effects models with backward elimination were used to assess treatment-induced changes, and a cross-lagged panel model (structural equation model) was used for additional exploratory analysis of the temporal associations between TQ and hair-BDNF.

RESULTS

At follow-up, a reduction in TQ (p < 0.001) and PSQ-20 scores (p = 0.045) was observed, which was not influenced by baseline hair-cortisol or hair-BDNF levels. No changes in biomarker levels were observed after treatment. The exploratory analysis tentatively suggests that a directional effect of baseline TQ scores on hair-BDNF levels at follow-up (trend; p = 0.070) was more likely than the opposite directional effect of baseline hair-BDNF levels on TQ scores at follow-up (n.s.).

DISCUSSION

While the treatment effectively reduced tinnitus-related distress and perceived stress in chronic tinnitus patients, this effect was not mirrored in biological changes. However, the lack of changes in hair-cortisol and hair-BDNF levels might have been influenced by the treatment duration, follow-up interval, or confounding medical factors, and therefore must be interpreted with caution. The relationship between tinnitus-related distress and hair-BDNF levels should be explored further to obtain a better understanding of stress-related effects in chronic tinnitus.

Stress and Psychopathology Reduction in Pregnant Women through Online Cognitive Behavioural Therapy during COVID-19: A Feasibility Study

Background: The global pandemic has affected the psychological health of the population, including pregnant women. Due to the difficulty of offering conventional therapies to reduce stress in this population, studies are needed to show the effect of online therapies. Therefore, the objective was to test the effect of online cognitive behavioural therapy in pregnant women during the pandemic on the main variables of stress and psychopathology. Methods: The sample consisted of 16 pregnant women who participated in a weekly cognitive behavioural intervention for 8 weeks. Prenatal concerns, general stress, stress vulnerability, resilience and psychopathology were assessed. Results: The results show a reduction in prenatal concerns, perceived stress, stress vulnerability and psychopathology, as well as an increase in resilience. Conclusions: Online cognitive behavioural intervention may be effective in pregnant women, so it is important to conduct a randomised controlled trial to certify these findings.

The psychological impact of the COVID-19 pandemic on pregnant women

The aim was to examine the psychological effects caused by the COVID-19 pandemic on pregnant women, as well as the factors influencing these effects. The study design was cross-sectional and the participants were 200 pregnant women. The first group called the Pandemic Group (PG) included 100 women who were evaluated with psychological assessment instruments during the COVID-19 pandemic. The second group titled Pre-Pandemic Group (PPG) consisted of 100 women who were evaluated prior to the pandemic. Perceived stress, prenatal concerns and psychopathological symptoms were evaluated and compared. Pandemic Group scored significantly higher than Pre-Pandemic Group in the depression dimension of the SCL-90, in the phobic anxiety dimension, and in the Perceived Stress Scale. In addition, insomnia, along with having recently suffered the loss of a loved one explained 25% of the score variance in the depression dimension of the SCL-90. Insomnia also explained 13% of the variance of the results found in the Perceived Stress Scale. The fear of contagion by COVID-19 increased the scores obtained in the phobic anxiety dimension, explaining 11% of the variance. Thus, the COVID-19 pandemic could produce an increase in psychopathological symptomatology and stress, which can lead to negatively affecting pregnant women's mental health.

"I am pregnant. Am I different?": Psychopathology, psychological stress and hair cortisol levels among pregnant and non-pregnant women

Pregnancy is a life process that brings about a series of associated changes, both physical and psychological, in women. The psychopathological changes occurring in pregnant women due to the simple fact of this new vital stage are unknown. Therefore, the objective of this study was to compare the psychopathological symptoms present during pregnancy with those present in non-pregnant women, as well as the perceived stress and hair cortisol levels. For this, a group of non-pregnant women (n = 171) were compared with pregnant women who were in the first trimester (n = 124), second trimester (n = 200) and third trimester (n = 190). Moreover, 77 women were followed up to verify their psychopathological course of pregnancy. Differences were found between pregnant and non-pregnant women relating to a wide range of psychopathological symptoms, perceived stress and hair cortisol levels. The symptoms were greater in the group of pregnant women. By studying different types of psychopathological symptoms associated with pregnancy, it is possible to assign psychological interventions to given characteristics of pregnant women. In addition, we can broaden our knowledge about the psychological aspects of pregnancy and the changes associated with it.

A systematic review of hair cortisol during pregnancy: Reference ranges and methodological considerations

The present study systematically reviewed 56 articles that assessed hair cortisol concentrations during pregnancy collected from PubMed, Scopus, and Web of Science on 8/9/19 and updated on 6/29/20. Our goals were to establish reference ranges by trimester based on published studies. The majority of any given sample (e.g., 70 %, the range of -1SD to +1SD) is expected to fall between 0 and 34.15 pg/mg in trimester 1 and 2, and between 8.59 and 44 pg/mg in trimester 3, with very wide ranges (e.g., values of >250 pg/mg) and substantially higher values (e.g., averages of 200's-300's reaching as high as 768 pg/mg) coming out of one specific lab. Delineating a reference range for hair cortisol concentrations across pregnancy is challenging because of known factors like differences in values returned by different laboratories and assay types. We observed inconsistency in descriptions of the data and data preparation steps post-assay. Key findings include that only half of the studies examining all three trimesters showed a constant increase in mean levels (most retrospectively assessed via segmenting), with considerable variability in patterns of change. None of the studies reported individual patterns of change. Examining within-person changes are an important next step for the field. We conclude that researchers should more clearly report decisions around outliers, units, and specifics of data transformations in the future in order to improve our ability to compare findings across studies, to understand differences in HCC values reported, and potentially to understand differences in reported associations of HCC with other phenotypes in the literature.