Post-traumatic stress disorder in women: epidemiological and treatment issues

Examining the Role of Posttraumatic Stress and Depressive Symptoms in HIV Pre-exposure Prophylaxis (PrEP) Motivation Among Women Survivors of Intimate Partner Violence

Post-traumatic stress disorder (PTSD) and major depressive disorder (MDD) are associated with functional impairments, yet little is known about their influence on HIV pre-exposure prophylaxis (PrEP) motivation among women survivors of intimate partner violence (IPV). Understanding how PTSD and MDD symptoms influence PrEP motivation is particularly important given survivors of IPV have an increased risk for HIV acquisition. The present study assessed the association between PrEP motivation with latent profiles of PTSD and MDD symptoms among women survivors of IPV. Data were collected from a sample of 285 women from Baltimore, MD, and New Haven, CT. Latent profile analysis (LPA) was performed to identify distinct patterns of depressive and PTSD symptoms among women survivors of IPV. Binary logistic regression was performed to examine the association of profile membership on PrEP motivation. A six-profile solution was determined to best fit the data. Profiles were characterized by: Profile 1, very low depressive and very low PTSD symptoms (28.07%); Profile 2, average depressive symptoms and low (below the mean) PTSD symptoms (21.05%); Profile 3, high depressive symptoms and low (below the mean) PTSD symptoms (9.8%); Profile 4, moderate depressive symptoms and high PTSD symptoms (15.78%); Profile 5, high PTSD avoidance and average depressive symptoms (17.1%); Profile 6, high depressive and high PTSD symptoms (8%). We found that, the odds of being in Stage 3 of the PrEP Motivational Cascade (PrEParation; defined by having access to a medical provider to prescribe PrEP, be willing to take PrEP, and self-identifying as an appropriate candidate for PrEP) compared to Stage 1 of the PrEP Motivational Cascade (Precontemplation; defined by being eligible for PrEP, but not willing to take PrEP and/or not self-identifying as an appropriate candidate for PrEP) were lower for women assigned to the low depressive symptoms and low PTSD symptoms profile (Profile 1 of the LPA) compared to women in the high depressive symptoms and High PTSD symptoms profile (Profile 6 of the LPA, OR = 0.22, 95% CI = 0.06-0.76, p = 0.02). Women assigned to the low PTSD symptoms and average depressive symptoms profile (Profile 2 of the LPA) had lower odds of being in Stage 3 (PrEParation) compared to Stage 1 (Precontemplation) compared to women assigned to the high depressive symptoms and High PTSD symptoms profile (Profile 6 of the LPA, OR = 0.25, 95% CI = 0.07-0.92, p = 0.037). Women survivors of IPV with higher PTSD and MDD symptoms expressed greater motivation to engage in PrEP compared to women survivors with low PTSD and low MDD symptoms. Findings support the CDC's clinical PrEP recommendations to integrate depression screening into PrEP services, but there is a critical need to also include PTSD screening. Further, MDD and PTSD symptoms may present differential barriers to PrEP motivation among women survivors of IPV. Precision care could synchronize trauma-informed practices and mental health treatment to engage survivors in PrEP services.

Grasping Posttraumatic Stress Disorder From the Perspective of Psychoneuroimmunoendocrinology: Etiopathogenic Mechanisms and Relevance for Integrative Management

Posttraumatic stress disorder (PTSD) is a debilitating condition caused by exposure to traumatic events that affects 5% to 10% of the population, with increased prevalence among women and individuals in war zones. Beyond psychological symptoms, PTSD induces significant physiological changes across systems. Psychoneuroimmunoendocrinology (PNIE) offers a framework to explore these complex interactions between the psyche and the nervous, immune, and endocrine systems. Studies have revealed that PTSD entails disruptions in the central and autonomic nervous, immune, and endocrine systems, including gut microbiota imbalances, which impair organ function. Integrative pathways that connect these parts include the microbiota-gut-brain axis, heart-brain axis, neuroinflammation, and hypothalamic-pituitary dysregulation, highlighting bidirectional links between mental and physical health. Viewing PTSD as an entity comprising both psychological and physiological challenges underscores the importance of integrative care strategies that combine pharmacological treatments, psychotherapy, and lifestyle interventions. These approaches are consistent with PNIE principles, which may help identify biomarkers for treatment efficacy. In this review, we discuss the pathophysiology of PTSD through a PNIE lens and its implications for improving patient care, advocating for personalized, multidisciplinary interventions in mental health.

Post-traumatic stress disorder and symptoms in paediatric cancer survivors and their family nucleus: systematic review, meta-analysis and meta-regression

BACKGROUND

Various studies have highlighted the increased incidence and symptoms of depression and anxiety in paediatric cancer survivors (PCS). Yet no meta-analysis has focused on post-traumatic stress disorder (PTSD) or post-traumatic stress symptoms (PTSS) in PCS and their family nucleus.

AIMS

To evaluate the overall risk of PTSD and severity of PTSS in PCS and their family nucleus. Secondary objectives include identifying potential risk factors of PTSD and high PTSS.

METHOD

We systematically searched PubMed, Embase and PsycINFO for studies comparing the risk of PTSD and PTSS severity among PCS, their family nucleus and non-cancer controls. PRISMA reporting guidelines were followed. Random effects meta-analyses and meta-regressions were conducted.

RESULTS

From 1089 records, we included 21 studies. PCS have an increased risk of PTSD (risk ratio 2.36, 95% CI 1.37-4.06) and decreased PTSS severity (standardised mean difference -0.29, 95% CI -0.50 to -0.08). Subgroup analyses of other categorical study-level characteristics revealed that female PCS who were older at diagnosis and data collection had a significantly higher risk of PTSD. Meta-regression were insignificant. Family nucleus did not show a significantly increased risk of PTSD (risk ratio 1.13, 95% CI 0.59-5.00) and PTSS severity (standardised mean difference 0.53, 95% CI -0.00 to 1.06). Systematically reviewing studies on the family nucleus found that the majority reported a significantly increased risk of psychological trauma compared with the comparator. Lower education, income and social status were also risk factors.

CONCLUSIONS

Timely identification and interventions are imperative for policy makers and healthcare providers to prevent trauma from worsening in this population group.

Sex differences in trauma exposure and PTSD symptomatology among refugees, internally displaced people, and asylum seekers: A systematic literature review

This systematic review aimed to explore sex differences in exposure to traumatic events and posttraumatic stress disorder (PTSD) symptomatology among refugees, internally displaced persons (IDPs), and asylum seekers. A comprehensive search was conducted across three databases (PubMed, PsychInfo, and Embase), which yielded 2,255 studies. A total of 15 studies were included for trauma exposure assessment, and 8 studies for PTSD symptomatology assessment. The review revealed significant sex differences in trauma exposure, with women experiencing higher rates of sexual violence, while men faced greater risks of imprisonment and torture. In terms of PTSD symptomatology, our findings showed that women tend to exhibit greater symptoms of arousal and specific symptoms of avoidance such as loss of interest and avoidance of activities reminding of trauma, while men were more likely to experience estrangement and detachment. Findings regarding symptoms of reexperiencing were not entirely consistent. This review emphasizes the importance of considering sex-specific symptoms in trauma assessment among displaced populations and advocates for further research into targeted interventions, especially regarding sexual violence.

Assessing the Human Health Benefits of Climate Mitigation, Pollution Prevention, and Biodiversity Preservation

Background

Since the Industrial Revolution, humanity has amassed great wealth and achieved unprecedented material prosperity. These advances have come, however, at great cost to the planet. They are guided by an economic model that focuses almost exclusively on short-term gain, while ignoring natural capital and human capital. They have relied on the combustion of vast quantities of fossil fuels, massive consumption of the earth's resources, and production and environmental release of enormous quantities of chemicals, pesticides, fertilizers, and plastics. They have caused climate change, pollution, and biodiversity loss, the "Triple Planetary Crisis". They are responsible for more than 9 million premature deaths per year and for widespread disease - impacts that fall disproportionately upon the poor and the vulnerable.

Goals

To map the human health impacts of climate change, pollution, and biodiversity loss. To outline a framework for assessing the health benefits of interventions against these threats.

Findings

Actions taken by national governments and international agencies to mitigate climate change, pollution, and biodiversity loss can improve health, prevent disease, save lives, and enhance human well-being. Yet assessment of health benefits is largely absent from evaluations of environmental remediation programs. This represents a lost opportunity to quantify the full benefits of environmental remediation and to educate policy makers and the public.

Recommendations

We recommend that national governments and international agencies implementing interventions against climate change, pollution, and biodiversity loss develop metrics and strategies for quantifying the health benefits of these interventions. We recommend that they deploy these tools in parallel with assessments of ecologic and economic benefits. Health metrics developed by the Global Burden of Disease (GBD) study may provide a useful starting point.Incorporation of health metrics into assessments of environmental restoration will require building transdisciplinary collaborations. Environmental scientists and engineers will need to work with health scientists to establish evaluation systems that link environmental and economic data with health data. Such systems will assist international agencies as well as national and local governments in prioritizing environmental interventions.

Association of Cardiovascular Diseases With Post-Traumatic Stress Disorder: An Updated Review

The intricate relationship between post-traumatic stress disorder (PTSD) and cardiovascular disease (CVD) has garnered increasing attention due to its bidirectional impact and potential for significant health consequences. Epidemiological evidence suggests that PTSD may serve as a risk factor for incident CVD, while acute CVD events can trigger PTSD, subsequently increasing the risk of recurrent cardiovascular events. This dynamic interplay is characterized by the human stress response, disrupted behavioral and lifestyle factors, and potential physiological mechanisms. Notably, the immediate aftermath of a cardiovascular event presents a critical window for intervention, offering the possibility of preventing the development of PTSD and its associated physiological and behavioral sequelae. However, while candidate mechanisms linking PTSD and CVD have been identified, determining which mechanisms are most amenable to intervention remains a challenge. This article emphasizes the urgency of addressing key unanswered questions in this domain. Despite an evolving understanding of the association between PTSD and CVD, causal relationships remain to be firmly established. Comprehensive investigations into the intricate interplay of behavioral and biological mechanisms are essential for identifying precise targets for intervention. Innovations in research methodologies, including the exploration of PTSD symptom dynamics and their impact on cardiovascular function, hold the potential for identifying crucial intervention points. Drawing parallels from prior challenges in translating identified risk factors into effective interventions, the field must prioritize systematic investigations and early-phase intervention trials. By doing so, researchers and clinicians can potentially develop strategies to mitigate CVD risk in the context of PTSD and improve both cardiovascular and mental health outcomes.

The other side of COVID-19: A cross-sectional study on mental health in a sample of Italian nurses during the second wave

Introduction

The COVID-19 pandemic has led to a drastic increase in the workload of healthcare professionals, particularly nurses, with serious consequences for their psychological well-being. Our study aimed to identify demographic and work-related factors, as well as clinical predictors of post-traumatic stress disorder (PTSD) and generalized anxiety disorder (GAD), in nurses employed during the COVID-19 pandemic.

Methods

We carried out a cross-sectional study between December 2020 and April 2021 on nurses employed during the COVID-19 second wave (October - December 2020). We evaluated PTSD and GAD using two validated questionnaires: i) the Impact of Event Scale - Revised (IES-R); and ii) General Anxiety Disorder -7 (GAD-7).

Results

Overall, 400 nurses, whose mean age was 34.3 years (SD ± 11.7), were included in the study. Most were female (78.5%), unmarried (58.5%) and employed in the central (61.5%) regions of Italy. A total of 56.8% of all participants had clinical predictors of PTSD, recording a median IES-R score (IQR) of 37.0 (22.0, 51.0) (range 1-84; cut-off >33 for PTSD). Furthermore, 50% of respondents reported moderate-to-severe symptoms consistent with GAD, recording a median GAD-7 score (IQR) of 9.5 (6.0,14.0) (range 0-21; cut-off >10 for GAD). Multivariable analysis showed that moderate-to-severe GAD (aOR = 4.54, 95% CI: 2.93 - 7.05), being employed in the critical care area (aOR = 1.74, 95% CI: 1.01 - 3.00) and being female (aOR= 1.88, 95% CI: 1.09 - 3.22) were significantly associated with the presence of clinical predictors of PTSD.

Discussion

The levels of PTSD symptoms and anxiety among nurses were high during the pandemic. PTSD and GAD represent a public health problem that should be addressed in the post-pandemic period. Healthcare organizations need to activate specific support and rehabilitation networks and programs for healthcare professionals employed during the COVID-19 pandemic.

Immunization with a heat-killed preparation of Mycobacterium vaccae NCTC 11659 enhances auditory-cued fear extinction in a stress-dependent manner

Stress-related psychiatric disorders including anxiety disorders, mood disorders, and trauma and stressor-related disorders, such as posttraumatic stress disorder (PTSD), affect millions of people world-wide each year. Individuals with stress-related psychiatric disorders have been found to have poor immunoregulation, increased proinflammatory markers, and dysregulation of fear memory. The "Old Friends" hypothesis proposes that a lack of immunoregulatory inputs has led to a higher prevalence of inflammatory disorders and stress-related psychiatric disorders, in which inappropriate inflammation is thought to be a risk factor. Immunization with a soil-derived saprophytic bacterium with anti-inflammatory and immunoregulatory properties, Mycobacterium vaccae NCTC 11659, can lower proinflammatory biomarkers, increase stress resilience, and, when given prior to or after fear conditioning in a rat model of fear-potentiated startle, enhance fear extinction. In this study, we investigated whether immunization with heat-killed M. vaccae NCTC 11659 would enhance fear extinction in contextual or auditory-cued fear conditioning paradigms and whether M. vaccae NCTC 11659 would prevent stress-induced exaggeration of fear expression or stress-induced resistance to extinction learning. Adult male Sprague Dawley rats were immunized with M. vaccae NCTC 11659 (subcutaneous injections once a week for three weeks), and underwent either: Experiment 1) one-trial contextual fear conditioning; Experiment 2) two-trial contextual fear conditioning; Experiment 3) stress-induced enhancement of contextual fear conditioning; Experiment 4) stress-induced enhancement of auditory-cued fear conditioning; or Experiment 5) stress-induced enhancement of auditory-cued fear conditioning exploring short-term memory. Immunizations with M. vaccae NCTC 11659 had no effect on one- or two-trial contextual fear conditioning or contextual fear extinction, with or without exposure to inescapable stress. However, inescapable stress increased resistance to auditory-cued fear extinction. Immunization with M. vaccae NCTC 11659 prevented the stress-induced increase in resistance to auditory-cued fear extinction learning. Finally, in an auditory-cued fear conditioning paradigm exploring short-term memory and fear acquisition, immunization with M. vaccae did not prevent fear acquisition, either with or without exposure to inescapable stress, consistent with the hypothesis that M. vaccae NCTC 11659 has no effect on fear acquisition but enhances fear extinction. These data are consistent with the hypothesis that increased immunoregulation following immunization with M. vaccae NCTC 11659 promotes stress resilience, in particular by preventing stress-induced resistance to fear extinction, and may be a potential therapeutic intervention for trauma- and stressor-related disorders such as PTSD.

ImpACT+, a coping intervention to improve clinical outcomes for women living with HIV and sexual trauma in South Africa: study protocol for a randomized controlled trial

Background

Addressing sexual trauma in the context of HIV care is essential to improve clinical outcomes and mental health among women in South Africa. Women living with HIV (WLH) report disproportionately high levels of sexual trauma and have higher rates of posttraumatic stress disorder. Adherence to antiretroviral therapy (ART) may be difficult for traumatized women, as sexual trauma compounds the stress associated with managing HIV and is often comorbid with other mental health disorders, further compromising care engagement and adherence. ART initiation represents a unique window of opportunity for intervention to enhance motivation, increase care engagement, and address the negative effects of trauma on avoidant coping behaviors. Mental health interventions delivered by non-specialists in low- and middle-income countries have potential to treat depression, trauma, and effects of intimate partner violence among WLH. This study will examine the effectiveness of Improving AIDS Care after Trauma (ImpACT +), a task-shared, trauma-focused coping intervention, to promote viral suppression among WLH initiating ART in a South African clinic setting.

Methods

This study will be conducted in Khayelitsha, a peri-urban settlement situated near Cape Town, South Africa. Using a hybrid type 1 effectiveness-implementation design, we will randomize 350 WLH initiating ART to the ImpACT + experimental condition or the control condition (three weekly sessions of adapted problem-solving therapy) to examine the effectiveness of ImpACT + on viral suppression, ART adherence, and the degree to which mental health outcomes mediate intervention effects. ImpACT + participants will receive six once-a-week coping intervention sessions and six monthly maintenance sessions over the follow-up period. We will conduct mental health and bio-behavioral assessments at baseline, 4, 8, and 12 months, with care engagement data extracted from medical records. We will explore scalability using the Consolidated Framework for Implementation Research (CFIR).

Discussion

This trial is expected to yield important new information on psychologically informed intervention models that benefit the mental health and clinical outcomes of WLH with histories of sexual trauma. The proposed ImpACT + intervention, with its focus on building coping skills to address traumatic stress and engagement in HIV care and treatment, could have widespread impact on the health and wellbeing of individuals and communities in sub-Saharan Africa.

Trial registration

Clinicaltrials.gov NCT04793217. Retrospectively registered on 11 March 2021.

Estradiol, stress reactivity, and daily affective experiences in trauma-exposed women

OBJECTIVE

Women experience higher risk for PTSD following trauma compared with men. Fluctuations in ovarian hormones might contribute to this greater vulnerability, given that estradiol is associated with affect and stress reactivity. Our objective was to test the relations between menstrual cycle-related changes in estradiol, affect, stress reactivity, and trauma-related symptoms.

METHOD

We assessed trauma-related symptoms in ethnically diverse naturally cycling women with a history of trauma during a clinical interview. Participants also completed a 10-day ecological momentary assessment (EMA) that included lower- and higher-estradiol phases. We tested associations between estradiol and PTSD symptoms and stress reactivity to a trauma reminder using Spearman correlation and Wilcoxon rank-sum tests. We tested the effect of menstrual cycle day on daily affect using multilevel modeling.

RESULTS

Estradiol was negatively associated with symptom severity (rs = -.36), and participants in low- versus high-estradiol cycle phases at interview had higher sympathetic (r = .35) and lower hypothalamic-pituitary-adrenal axis (r = .41) reactivity. Across the EMA period, participants showed a decrease in daily PTSD symptoms (b = -.39), negative (b = -.11) and positive (b = -.24) affect, and variability in daily valence (b = -.07) and arousal (b = -.08), from the low- to high-estradiol phase.

CONCLUSIONS

Consistent with prior evidence of more aversive affective experiences in low-estradiol states, lower estradiol was associated with higher trauma-related symptoms. In addition, trauma-exposed women showed a discordant pattern of stress reactivity to a trauma reminder, higher daily symptoms, and greater affective lability in a low-estradiol phase. Given that our sample consisted of high-functioning trauma-exposed women, these results should be replicated in women with PTSD. (PsycInfo Database Record (c) 2022 APA, all rights reserved).

Ensuring Trauma Informed Care in the Obstetric Setting: A vital role for the Psychiatrist

BACKGROUND

Trauma is highly prevalent, and women are twice as likely as men to develop post-traumatic stress disorder following a traumatic exposure. Consequently, many women entering the perinatal period have trauma histories. In the perinatal period, a trauma history, can negatively impact treatment engagement and adversely affect the experience of pregnancy, postpartum and parenting. A trauma informed care approach can mitigate these effects.

OBJECTIVES

This review aims to summarize literature that can aid psychiatrists in 1) identifying signs and symptoms of trauma in perinatal women 2) integrating elements of trauma informed care into perinatal mental health care, and 3) offering interventions that can minimize adverse outcomes for perinatal women and their children.

METHODS

A PubMed search was conducted with keywords including trauma, pregnancy, perinatal, post-traumatic stress disorder (PTSD), postpartum PTSD, trauma informed care.

RESULTS

Perinatal care, given its somewhat invasive nature, has the potential to traumatize or cause re-traumatization. Trauma related disorders are common and can present or worsen in the perinatal period. Trauma can manifest in multiple forms in this population, including exacerbation of pre-existing PTSD, new onset acute stress disorder in the perinatal period or postpartum PTSD secondary to traumatic childbirth. Unaddressed trauma can adversely affect the experience of pregnancy, postpartum and parenting. Psychiatrists caring for women in the perinatal period, are in an ideal position to screen for trauma and offer appropriate intervention. A trauma informed approach to obstetric care can help clinical teams respond to the unique trauma-related challenges that can arise during obstetric care. Trauma informed care, with its emphasis on establishing a culture of safety, transparency, trustworthiness, collaboration, and mutuality can empower health care providers and systems with powerful tools to respond to trauma and its myriad effects in a strengths-based manner. By applying a trauma-informed lens, psychiatrists can help their obstetric colleagues provide patient-centered compassionate care and treatment.

CONCLUSIONS

Applying a trauma informed approach to evaluation and treatment of perinatal populations could decrease the toll trauma has on affected women and their children.

Sotalol Treatment may Interfere With Retrieval, Expression, and/or Reconsolidation Processes Thus Disrupting Traumatic Memories in a Post-Traumatic Stress Disorder Mice Model

The processes by which fear memory is encoded, consolidated, and re-consolidated are extremely complex and appear to require the release of stress hormones, especially adrenaline (AD). AD improves contextual fear memory, acting specifically on peripheral β2-adrenoceptors. Propranolol (peripheral and central β-adrenoceptor antagonist) treatment was shown to prevent post-traumatic stress disorder (PTSD) development and reduce its symptoms. However, propranolol has several side effects. Thus, we aimed to evaluate if sotalol (a peripheral β-adrenoceptor antagonist) treatment interferes with retrieval, expression, and/or reconsolidation of traumatic memories in a validated mice model that mimics the signs/symptoms of PTSD, thus intending to decrease them. Female mice were induced with PTSD following an established protocol. Sotalol (2.0 mg/kg) or vehicle were administered on days 2, 7, and 14. The percentage of freezing was calculated, and behavioral tests were carried out. Catecholamines in plasma were quantified by HPLC with electrochemical detection. Quantitative real-time polymerase chain reaction (qPCR) was used to evaluate mRNA expression of NR4A family genes in hippocampus. Following the submission of the animals to the same aversive context on days 2, 7, and 14, sotalol-treated mice exhibited significant less freezing behavior. In the elevated plus-maze test, the time spent and number of entries in the open arms, and total arm entries were increased in sotalol-treated mice. Also, the light-dark transition test revealed higher time spent, number of transitions to the light, and total number of transitions in sotalol-treated mice. Moreover, plasma AD was significantly decreased in sotalol-treated mice. On day 14, sotalol-treated mice exhibited a decrease in mRNA expression of Nr4a1 in the hippocampus. In conclusion, in PTSD mice model, sotalol appears to decrease traumatic memories and anxiety-like behavior, probably due to a decrease in peripheral adrenergic activity, which influences traumatic memories. The effects of sotalol upon re-exposure to the traumatic context may be consistent with interference in the retrieval, expression, and/or reconsolidation processes of contextual traumatic memory, resulting in a long-term reduction of PTSD symptoms and signs. The decreased Nr4a1 mRNA expression in the hippocampal formation may be crucial for these mice to develop diminished traumatic contextual memories after sotalol therapy in PTSD.

Trauma Characteristics Moderate the Relation Between Estradiol and Trauma-Related Symptoms

Women are more likely to develop posttraumatic stress disorder (PTSD) than men, and fluctuations in gonadal hormones might contribute to this vulnerability. Low-estradiol states are associated with aversive affective experiences, including trauma-related symptoms. However, the impact of trauma characteristics on the relation between estradiol and trauma-related symptoms is unknown. We used a clinical interview and 10-day ecological momentary assessment (EMA) that spanned low- and high-estradiol menstrual cycle phases to test trauma type, chronicity, and timing as moderators of the association between estradiol and trauma-related symptoms in 40 naturally cycling young women. We tested interactions between trauma characteristics and (a) estradiol on self-reported symptoms and (b) menstrual cycle-related change in estradiol on change in symptoms. Sexual, chronic, and earlier trauma was associated with more severe symptoms as reported during the interview, rs = .51-.33, but not mean symptoms across the EMA. Estradiol at the time of the interview was inversely associated with symptoms in women with sexual but not nonsexual trauma, interaction: B = -12.62 (SE = 5.28), p = .022. Menstrual cycle-related change in estradiol was inversely associated with change in symptoms in women with chronic trauma, B = -9.65 (SE = 3.49), p = .006, and earlier trauma, B = 0.71 (SE = 0.34), p = .036, but not discrete or later trauma. Sexual, chronic, or early trauma exposure might confer higher symptom vulnerability in low-estradiol states. Clinicians who work with women with particular trauma histories might anticipate menstrual cycle-related variation in symptoms.

Posttraumatic Stress Disorder Brain Transcriptomics: Convergent Genomic Signatures Across Biological Sex

While a definitive understanding of the molecular pathology of posttraumatic stress disorder (PTSD) is far from a current reality, it has become increasingly clear that many of the molecular effects of PTSD are sex specific. Women are twice as likely as men to develop PTSD after a traumatic event, and neurobiological evidence suggests that there are structural differences between the brains of males versus females with PTSD. Recent advances in genomic technologies have begun to shed light on the sex-specific molecular determinants of PTSD, which seem to be governed predominantly by dysfunction of GABAergic (gamma-aminobutyric acidergic) signaling and immune function. We review the current state of the field of PTSD genomics focusing on the effect of sex. We provide an overview of difference in heritability of PTSD based on sex, how difference in gene regulation based on sex impacts the PTSD brain, and what is known about genomic regulation that is dysregulated in specific cell types in PTSD.

Treatment With Nepicastat Decreases Contextual Traumatic Memories Persistence in Post-traumatic Stress Disorder

Post-traumatic stress disorder (PTSD) is a common anxiety mental disorder and can be manifested after exposure to a real or perceived life-threatening event. Increased noradrenaline and adrenaline in plasma and urine have been documented in PTSD. Dopamine-β-hydroxylase (DBH) catalyzes the conversion of dopamine to noradrenaline and consequently, DBH inhibition reduces catecholamines. Our aim was to evaluate if nepicastat treatment decreases PTSD signs in an animal model. Wild-type (129x1/SvJ) female mice were submitted to PTSD induction protocol. DBH-inhibitor nepicastat (30 mg/kg) or vehicle (0.2% HPMC) were administered once daily since day 0 until day 7 or 12. The percentage of freezing was calculated on days 0, 1, 2, and 7, and behavioral tests were performed. Quantification of nepicastat in plasma and DBH activity in the adrenal gland was evaluated. Catecholamines were quantified by HPLC with electrochemical detection. mRNA expression of Npas4 and Bdnf in hippocampus was evaluated by qPCR.Mice in the PTSD-group and treated with nepicastat showed a decrease in freezing, and an increase in the time spent and entries in open arms in elevated plus maze test. In mice treated with nepicastat, adrenal gland DBH activity was decreased, and catecholamines were also decreased in plasma and tissues. On day 7, in mice treated with nepicastat, there was an increase of Npas4 and Bdnf mRNA expression in the hippocampus.In conclusion, DBH inhibitor nepicastat has an effect consistent with a decrease in the persistence of traumatic memories and anxiety-like behavior in this PTSD mice model. The disruption of traumatic memories through interference with the formation, consolidation, retrieval, and/or expression processes may be important to decrease PTSD symptoms and signs. The increase in Npas4 and Bdnf mRNA expression in the hippocampus may be important to develop a weaker traumatic contextual memory after nepicastat treatment.

The impact of sex and gender on heart-brain axis dysfunction: current concepts and novel perspectives

The heart-brain axis (HBA) recapitulates all the circuits that regulate bidirectional flow of communication between heart and brain. Several mechanisms may underlie the interdependent relationship involving heterogeneous tissues at rest and during specific target organ injury such as myocardial infarction, heart failure, arrhythmia, stroke, mood disorders, or dementia. In-depth translational studies of the HBA dysfunction under single-organ injury should include both male and female animals to develop sex- and gender-oriented prevention, diagnosis, and treatment strategies. Indeed, sex and gender are determining factors as females and males exhibit significant differences in terms of susceptibility to risk factors, age of onset, severity of symptoms, and outcome. Despite most studies having focused on the male population, we have conducted a careful appraisal of the literature investigating HBA in females. In particular, we have (i) analyzed sex-related heart and brain illnesses, (ii) recapitulated the most significant studies simultaneously conducted on cardio- and cerebro-vascular systems in female populations, and (iii) hypothesized future perspectives for the development of a gender-based approach to HBA dysfunction. Although sex- and gender-oriented research is at its infancy, the impact of sex on HBA dysfunction is opening unexpected new avenues for managing the health of female subjects exposed to risk of lifestyle multi-organ disease.

Intimate Partner Violence Among Patients With Dissociative Disorders

Childhood trauma is common among survivors and perpetrators of intimate partner violence (IPV). Although symptoms of posttraumatic stress disorder (PTSD) and dissociative disorders (DDs) are predictors of IPV victimization and perpetration, few studies explore IPV among those with DDs. The present study examined IPV and symptoms as predictors among participants in the Treatment of Patients With Dissociative Disorders (TOP DD) Network study, an educational intervention for individuals with DDs and their clinicians. Both clinicians and patients reported on patients' history of physical, emotional, and sexual IPV as both victims and perpetrators. Patients self-reported dissociative, posttraumatic (PTSD), and emotion dysregulation symptoms, as well as IPV-specific dissociative symptoms. According to patients and clinicians, patients were frequently victims of IPV, most commonly emotional IPV. Dissociative symptoms predicted IPV exposure, whereas dissociative and emotion dysregulation symptoms predicted IPV-specific dissociative symptoms.

The neurobiological basis of sex differences in learned fear and its inhibition

Learning that certain cues or environments predict threat enhances survival by promoting appropriate fear and the resulting defensive responses. Adapting to changing stimulus contingencies by learning that such cues no longer predict threat, or distinguishing between these threat-related and other innocuous stimuli, also enhances survival by limiting fear responding in an appropriate manner to conserve resources. Importantly, a failure to inhibit fear in response to harmless stimuli is a feature of certain anxiety and trauma-related disorders, which are also associated with dysfunction of the neural circuitry underlying learned fear and its inhibition. Interestingly, these disorders are up to twice as common in women, compared to men. Despite this striking sex difference in disease prevalence, the neurobiological factors involved remain poorly understood. This is due in part to the majority of relevant preclinical studies having neglected to include female subjects alongside males, which has greatly hindered progress in this field. However, more recent studies have begun to redress this imbalance and emerging evidence indicates that there are significant sex differences in the inhibition of learned fear and associated neural circuit function. This paper provides a narrative review on sex differences in learned fear and its inhibition through extinction and discrimination, along with the key gonadal hormone and brain mechanisms involved. Understanding the endocrine and neural basis of sex differences in learned fear inhibition may lead to novel insights on the neurobiological mechanisms underlying the enhanced vulnerability to develop anxiety-related disorders that are observed in women.

Sex-dependent opposite effects of a tropomyosin-related kinase B receptor (TrkB) agonist 7,8-dihydroxyflavone on cued fear extinction in mice

Tropomyosin-related kinase B receptor (TrkB) is one of the new candidate receptors for drugs targeting psychiatric and neurodegenerative disorders. Recently, 7,8-dihydroxyflavone (7,8-DHF) has been identified as a selective TrkB agonist that crosses the blood-brain barrier after oral or intraperitoneal administration, and it enhances cued fear extinction in male rodents. However, its effects on females remain unclear. Preclinical research including both sexes is important for the development of treatment, particularly, for stress-related disorders such as post-traumatic stress disorder because such disorders are more prevalent in women. Therefore, we investigated the effects of 7,8-DHF on cued and contextual fear extinction in both male and female mice. Here we demonstrated that the administration of 7,8-DHF before each extinction session attenuated cued fear extinction in females; conversely, it enhanced cued fear extinction in males. However, administration of 7,8-DHF immediately after each extinction session did not affect cued fear extinction in either sex. Moreover, in contextual fear extinction, administration of 7,8-DHF before each extinction session did not affect fear extinction in either sex. Thus, 7,8-DHF showed sex-dependent opposite effects on cued fear extinction in mice when administered before but not immediately after each extinction session. Our results could contribute to the development of pharmacotherapy involving 7,8-DHF, particularly for stress-related disorders.

The Eco-Social Trauma Intervention Model

OBJECTIVES

We describe a transdisciplinary theory of change for interventions to promote trauma recovery that utilizes an eco-social approach to enhance health status and well-being following trauma exposures. This four-level theory of change could be applied to other population health problems, as well.

METHODS

This theory-development process included reviewing existing literature, identifying assumptions, defining core concepts, stating propositions, depicting concepts and propositions for clarity, and illustrating with case examples grounded in our focus on trauma.

RESULTS

The resulting Eco-Social Trauma Intervention Model offers a framework for interventions that address the impact of trauma on the individual level through self-regulation, interpersonal level through relationships, community/organizational level through safety, and societal level through identities. Application of this model to intervention development for those affected by trauma is intended to promote resilience, recovery, posttraumatic growth, and positive adaptations to traumatic stress for populations, going beyond the current Western paradigm of treating individuals for psychopathology.

CONCLUSIONS

The Eco-Social Trauma Intervention Model offers an adaptable transdisciplinary framework for developing and researching scalable trauma interventions for individuals, communities, and populations.

Childhood Trauma and Dissociative Intimate Partner Violence

The present study assesses childhood abuse/neglect as a predictor of dissociative intimate partner violence (IPV) among 118 partner-abusive men. One third (36%) endorsed dissociative IPV, most commonly losing control (18%), surroundings seeming unreal (16%), feeling someone other than oneself is aggressing (16%), and seeing oneself from a distance aggressing (10%). Childhood physical abuse/neglect predicted IPV-specific derealization/depersonalization, aggressive self-states, and flashbacks to past violence. Childhood emotional abuse/neglect predicted derealization/depersonalization, blackouts, and flashbacks. Childhood sexual abuse uniquely predicted amnesia. Other potential traumas did not predict dissociative IPV, suggesting dissociative IPV is influenced by trauma-based emotion dysregulation wherein childhood abuse/neglect survivors disconnect from their abusive behavior.

Trauma exposure and post-traumatic stress disorder in a cohort of pregnant Peruvian women

Women have a higher prevalence of post-traumatic stress disorder (PTSD) than men, with a peak during the reproductive years. PTSD during pregnancy adversely impacts maternal and infant health outcomes. The objectives of this study were to estimate the prevalence of antepartum PTSD symptoms in a population of pregnant Peruvian women and to examine the impact of number of traumatic events and type of trauma experienced. The Traumatic Events Questionnaire was used to collect data about traumatic exposures. The Post-traumatic Stress Disorder Checklist-Civilian Version (PCL-C) was used to assess PTSD. Multivariable logistic regression procedures were used to estimate adjusted odds ratios (aOR) and 95% confidence intervals (95% CI). Three thousand three hundred seventy-two pregnant women were interviewed. Of the 2920 who reported experiencing one or more traumatic events, 41.8% met criteria for PTSD (PCL-C score ≥ 26). A quarter of participants had experienced four or more traumas, and 60.5% of those women had PTSD. Interpersonal trauma was most strongly associated with PTSD (aOR, 3.20; 95% CI, 2.74-3.74), followed by unspeakable trauma (aOR, 2.87; 95% CI, 2.35-3.50), and structural trauma (aOR, 1.39; 95% CI, 1.15-1.67). These findings indicate the high prevalence of PTSD during pregnancy in the Peruvian population, which is relevant to other countries suffering from terrorism, war, or high rates of violence. This underscores the importance of screening for PTSD in pregnancy.

Improving AIDS Care After Trauma (ImpACT): Pilot Outcomes of a Coping intervention Among HIV-Infected Women with Sexual Trauma in South Africa

Improving AIDS Care after Trauma (ImpACT), a coping intervention for HIV-infected women with sexual abuse histories, was evaluated for feasibility and potential efficacy in a public clinic in Cape Town, South Africa. Sixty-four participants were enrolled prior to starting antiretroviral therapy (ART). After completing baseline assessments, participants were randomly assigned to standard of care (SoC: three adherence counseling sessions) or ImpACT (SoC plus four individual and three group sessions). Participants completed assessments at 3 months (after individual sessions) and 6 months post-baseline. In exploratory analysis of primary outcomes, ImpACT participants, compared to SoC, reported greater reductions in avoidance and arousal symptoms of PTSD and greater increases in ART adherence motivation at 3 months. Clinically significant decreases in overall PTSD symptoms were also demonstrated at 3 months. These effects continued as trends at the 6-month assessment, in addition to increases in social/spiritual coping. In analysis of secondary outcomes, high levels of non-adherence to ART and poor care engagement were evident at 6 months, with no differences between study arms. A trauma-focused, culturally-adapted individual intervention delivered by a non-specialist in the HIV care setting is feasible and acceptable. Preliminary findings suggest ImpACT has potential to reduce PTSD symptoms and increase ART adherence motivation, but a more intensive intervention may be needed to improve and maintain care engagement among this population.

TRIAL REGISTRATION

ClinicalTrials.gov NCT02223390.

A meta-ethnographic synthesis of midwives' and nurses' experiences of adverse labour and birth events

INTRODUCTION

Health professionals are frequently exposed to traumatic events due to the nature of their work. While traumatic and adverse labour and birth events experienced by women are well researched, less attention has been given to midwives' and nurses' experiences of these events and the impact it has on their lives.

AIMS AND OBJECTIVES

To undertake a meta-ethnographic study of midwives' and nurses' experiences of adverse labour and birth events.

METHODS

Scopus, CINHAL PLUS, MEDLINE and PUBMED databases were searched using subject headings and keywords. The search was limited to papers published in peer-reviewed journals from 2004-October 2016. Quality appraisal was undertaken using the Critical Appraisal Skills Programme tool.

INCLUSION CRITERIA

Papers had to be qualitative or have a substantial qualitative component. Studies were included if they primarily focused on midwives' or nurses' perspectives or experiences of complicated, traumatic or adverse labour and birth events.

ANALYTIC STRATEGY

A meta-ethnographic approach was used incorporating methods of reciprocal translation guided by the work of Noblit and Hare (1988, Meta-Ethnography: Synthesizing qualitative studies (Vol. 11). Newbury Park: Sage publications).

FINDINGS

Eleven qualitative studies were included in the final sample. Four major themes were (i) feeling the chaos; (ii) powerless, responsible and a failure; (iii) "It adds another scar to my soul"; and (iv) finding a way to deal with it.

CONCLUSION

Midwives and nurses feel relatively unprepared when faced with a real-life labour and birth emergency event. While many of the midwives and nurses were traumatised by the experience, some were able to view their encounter as an opportunity to develop their emergency response skills.

RELEVANCE TO CLINICAL PRACTICE

Witnessing and being involved in a complicated or adverse labour and birth event can be traumatic for nurses and midwives. Organisational and collegial support needs to be available to enable these health professionals to talk about their feelings and concerns.

The contribution of gender-based violence and network trauma to gender differences in Post-Traumatic Stress Disorder

Background

Posttraumatic stress disorder (PTSD) occurs twice as commonly amongst women as men. Two common domains of trauma, network trauma and gender based violence (GBV), may contribute to this gender difference in PTSD rates. We examined data from a nationally representative sample of the Australian population to clarify the characteristics of these two trauma domains in their contributions to PTSD rates in men and women.

Methods

We drew on data from the 2007 Australian National Survey of Mental Health and Well-being to assess gender differences across a comprehensive range of trauma domains, including (1) prevalence of lifetime exposure; (2) identification of an index trauma or DSM-IV Criterion A event; and (3) the likelihood of developing full DSM-IV PTSD symptoms once an index trauma was identified.

Results

Men reported more traumatic events (TEs) overall but women reported twice the prevalence of lifetime PTSD (women, 13.4%; men, 6.3%). Women reported a threefold higher level of exposure to GBV and were seven times more likely to nominate GBV as the index trauma as compared to men. Women were twice more likely than men to identify a network trauma as the index trauma and more likely to meet full PTSD symptoms in relation to that event (women, 20.6%; men, 14.6%).

Conclusion

Women are more likely to identify GBV and network trauma as an index trauma. Women’s far greater exposure to GBV contributes to their higher prevalence of PTSD. Women are markedly more likely to develop PTSD when network trauma is identified as the index trauma. Preventing exposure to GBV and providing timely interventions for acute psychological reactions following network trauma may assist in reducing PTSD rates amongst women.

Neuroendocrine Underpinnings of Increased Risk for Posttraumatic Stress Disorder in Women

Women are particularly vulnerable to the effects of psychological trauma and the development of trauma-, stressor-, and anxiety-related mental illnesses such as posttraumatic stress disorder (PTSD). In the current chapter, we examine the female hormonal systems that interact with psychobiological stress response systems to elicit maladaptive behavior and mental disease states in traumatized female populations. In addition, we provide a contemporary translational example of a stress vulnerability genomic profile (coding for pituitary adenylate cyclase-activating polypeptide) that may underlie the specific susceptibilities observed in women. Translational scientific investigations such as those described herein may lead to the identification of risk and resilience factors for PTSD as well as enhanced clinical interventions for treating excessive fear and anxiety.

Trauma-Informed Mindfulness-Based Stress Reduction for Female Survivors of Interpersonal Violence: Results From a Stage I RCT

OBJECTIVE

This pilot randomized controlled trial evaluated a novel trauma-informed model of mindfulness-based stress reduction (TI-MBSR) as a phase I trauma intervention for female survivors of interpersonal violence (IPV).

METHOD

A community-based sample of women (mean age = 41.5, standard deviation = 14.6) with a history of IPV was randomly assigned to an 8-week TI-MBSR intervention (n = 23) or a waitlist control group (n = 22). Symptoms of posttraumatic stress disorder (PTSD) and depression as well as anxious and avoidant attachment were assessed pre- and postintervention.

RESULTS

Relative to the control group, participation in TI-MBSR was associated with statistically and clinically significant decreases in PTSD and depressive symptoms and significant reductions in anxious attachment. Retention in the intervention was high, with most participants completing at least 5 of the 8 sessions for the intervention. Minutes of mindfulness practice per week significantly predicted reductions in PTSD symptoms.

CONCLUSION

TI-MBSR appears to be a promising and feasible phase I intervention for female survivors of interpersonal trauma.

Sex differences in conditioned stimulus discrimination during context-dependent fear learning and its retrieval in humans: the role of biological sex, contraceptives and menstrual cycle phases

BACKGROUND

Anxiety disorders are more prevalent in women than in men. Despite this sexual dimorphism, most experimental studies are conducted in male participants and studies focusing on sex differences are sparse. In addition, the role of hormonal contraceptives and menstrual cycle phase in fear conditioning and extinction processes remain largely unknown.

METHODS

We investigated sex differences in context-dependent fear acquisition and extinction (day 1) and their retrieval/expression (day 2). Skin conductance responses (SCRs), fear and unconditioned stimulus expectancy ratings were obtained.

RESULTS

We included 377 individuals (261 women) in our study. Robust sex differences were observed in all dependent measures. Women generally displayed higher subjective ratings but smaller SCRs than men and showed reduced excitatory/inhibitory conditioned stimulus (CS+/CS-) discrimination in all dependent measures. Furthermore, women using hormonal contraceptives showed reduced SCR CS discrimination on day 2 than men and free-cycling women, while menstrual cycle phase had no effect.

LIMITATIONS

Possible limitations include the simultaneous testing of up to 4 participants in cubicles, which might have introduced a social component, and not assessing postexperimental contingency awareness.

CONCLUSION

The response pattern in women shows striking similarity to previously reported sex differences in patients with anxiety. Our results suggest that pronounced deficits in associative discrimination learning and subjective expression of safety information (CS- responses) might underlie higher prevalence and higher symptom rates seen in women with anxiety disorders. The data call for consideration of biological sex and hormonal contraceptive use in future studies and may suggest that targeting inhibitory learning during therapy might aid precision medicine.

Sex differences in anxiety disorders: Interactions between fear, stress, and gonadal hormones

This article is part of a Special Issue "SBN 2014". Women are more vulnerable to stress- and fear-based disorders, such as anxiety and post-traumatic stress disorder. Despite the growing literature on this topic, the neural basis of these sex differences remains unclear, and the findings appear inconsistent. The neurobiological mechanisms of fear and stress in learning and memory processes have been extensively studied, and the crosstalk between these systems is beginning to explain the disproportionate incidence and differences in symptomatology and remission within these psychopathologies. In this review, we discuss the intersect between stress and fear mechanisms and their modulation by gonadal hormones and discuss the relevance of this information to sex differences in anxiety and fear-based disorders. Understanding these converging influences is imperative to the development of more effective, individualized treatments that take sex and hormones into account.

Risk factors for the development of psychopathology following trauma

Traumatic experiences can lead to a range of mental health problems with posttraumatic stress disorder (PTSD) leading as the most documented disorder following trauma. Epidemiological research has found the rate of exposure to trauma to far outweigh the prevalence of PTSD. Indicating that most people do not develop PTSD following a traumatic event, this phenomenon has led to an interest in evaluating risk factors to determine who develops PTSD. Risk factors for the development of psychopathology following trauma exposure fall into three categories: pre-trauma, peri-trauma and post-trauma factors. Pre-trauma factors can include age, gender, race/ethnicity, education, prior psychopathology, and neurobiological factors. Peri-trauma factors can include the duration/severity of trauma experience and the perception that the trauma has ended. Post-trauma factors can include access to needed resources, social support, specific cognitive patterns, and physical activity. To date, several important risk factors have been found to impact the risk of developing PTSD including gender, age, education, IQ, race and ethnicity, sexual orientation, pre-trauma psychopathology, prior trauma exposure, familial psychiatric history, and neurobiological factors. This article outlines the state of research findings on pretraumatic, peritraumatic, and posttraumatic risk factors for the development of PTSD and associated psychopathology following trauma.

Protocol for studying extinction of conditioned fear in naturally cycling female rats

Extinction of conditioned fear has been extensively studied in male rodents. Recently, there have been an increasing number of studies indicating that neural mechanisms for certain behavioral tasks and response behaviors are different in females and males. Using females in research studies can represent a challenge because of the variation of gonadal hormones during their estrous cycle. This protocol describes well-established procedures that are useful in investigating the role of estrogen in fear extinction memory consolidation in female rats. Phase of the estrous cycle and exogenous estrogen administration prior to extinction training can influence extinction recall 24 hr later. The vaginal swabbing technique for estrous phase identification described here aids the examination and manipulation of naturally cycling gonadal hormones. The use of this basic rodent model may further delineate the mechanisms by which estrogen can modulate fear extinction memory in females.

The association of interpersonal trauma with somatic symptom severity in a primary care population with chronic pain: exploring the role of gender and the mental health sequelae of trauma

OBJECTIVE

Female trauma survivors develop somatic symptoms more frequently than males. We propose a model for somatic symptom development among trauma survivors, focusing on gender.

METHODS

Among 597 urban primary care patients with chronic pain, we examined the association between somatic symptom severity and three interpersonal trauma types: 1) sexual trauma (ST), 2) intimate partner violence (IPV), and 3) childhood trauma history (≥3 adverse childhood experiences (3+ACE)). We developed a structural equation model in which PTSD, depression, and substance abuse were evaluated as potential mediators of the path between trauma exposure and somatic symptom severity, and explored the role of gender in this model.

RESULTS

350 (59%) respondents were female; the mean age was 47. Women reported significantly more somatic symptoms than men, although somatic symptoms were increased among all interpersonal trauma survivors. In models in which the potential intervening variables are considered in aggregate, we did not find a signficant interaction between gender and trauma on somatic symptom severity, with the exception of 3+ACEs. A structural equation model showed depression and substance abuse, for men, and depression, for women, were associated with somatic symptom severity. PTSD was not associated with somatic symptom severity. Paths from trauma exposures to mental health sequelae were stronger for men.

CONCLUSIONS

Women have more severe somatic symptoms. With the exception of 3+ACEs, the association between trauma and somatic symptoms is amplified in both genders. Structural equation models showed the pathways differed by gender in function and strength of association.

Mechanisms of estradiol in fear circuitry: implications for sex differences in psychopathology

Over the past two decades, substantial knowledge has been attained about the mechanisms underlying the acquisition and subsequent extinction of conditioned fear. Knowledge gained on the biological basis of Pavlovian conditioning has led to the general acceptance that fear extinction may be a useful model in understanding the underlying mechanisms in the pathophysiology of anxiety disorders and may also be a good model for current therapies treating these disorders. Lacking in the current knowledge is how men and women may or may not differ in the biology of fear and its extinction. It is also unclear how the neural correlates of fear extinction may mediate sex differences in the etiology, maintenance, and prevalence of psychiatric disorders. In this review, we begin by highlighting the epidemiological differences in incidence rate. We then discuss how estradiol (E2), a primary gonadal hormone, may modulate the mechanisms of fear extinction and mediate some of the sex differences observed in psychiatric disorders.

Mother-infant attachment and the intergenerational transmission of posttraumatic stress disorder

Evidence for the intergenerational transmission of posttraumatic stress disorder (PTSD) is documented in the literature, although the underlying mechanisms are poorly understood. Attachment theory provides a framework for elucidating the ways in which maternal PTSD may increase offspring PTSD vulnerability. The current study utilized two independent prospective data sets to test the hypotheses that (a) maternal PTSD increases the probability of developing an insecure mother-infant attachment relationship and (b) an insecure mother-infant attachment relationship increases the risk of developing PTSD following trauma exposure in later life. In the first study of urban, primarily low-income ethnic/racial minority mothers and infants (N = 45 dyads), elevated maternal PTSD symptoms at 6 months were associated with increased risk for an insecure, particularly disorganized, mother-infant attachment relationship at 13 months. In the second birth cohort of urban, low-income mothers and children (N = 96 dyads), insecure (avoidant or resistant) attachment in infancy was associated in a dose-response manner with increased lifetime risk for a diagnosis of PTSD by adolescence. A history of disorganized attachment in infancy predicted severity of PTSD symptoms, including reexperiencing, avoidance, hyperarousal, and total symptoms, at 17.5 years. In both studies, associations between attachment and PTSD were not attributable to numerous co-occurring risk factors. The findings suggest that promoting positive mother-child relationships in early development, particularly in populations at high risk for trauma exposure, may reduce the incidence of PTSD.

Neurobehavioral Mechanisms of Traumatic Stress in Post-traumatic Stress Disorder

Post-traumatic stress disorder (PTSD) is a debilitating psychiatric disorder that develops following trauma exposure. It is characterized by four symptom clusters: intrusion, avoidance, negative alteration in cognitions and mood, and alterations in arousal and reactivity. Several risk factors have been associated with PTSD, including trauma type and severity, gender and sexual orientation, race and ethnicity, cognitive reserve, pretrauma psychopathology, familial psychiatric history, and genetics. Great strides have been made in understanding the neurobiology of PTSD through animal models and human imaging studies. Most of the animal models have face validity, but they have limitations in the generalization to the human model of PTSD. Newer animal models, such as the "CBC" model, have better validity for PTSD, which takes into account the different components of its diagnostic criteria. To date, fear conditioning and fear extinction animal models have provided support for the hypothesis that PTSD is a dysregulation of the processes related to fear regulation and, especially, fear extinction. More research is needed to further understand these processes as they relate not only to PTSD but also to resilience. Further, this research could be instrumental in the development of novel effective treatments for PTSD.

Poly-victimization among juvenile justice-involved youths

OBJECTIVES

This study replicates and extends the research literature on poly-victimization with a vulnerable and under-served population, juvenile justice-involved youths.

METHODS

N=1959, 10-16 year old youths (76% male; 74% youth of color) consecutively newly admitted to juvenile detention facilities completed psychometric measures of trauma history, posttraumatic stress, affect regulation, alcohol/drug use, suicide risk, and somatic complaints.

RESULTS

Using latent class analysis derived from 19 types of adversity, three unique classes best fit the data. A poly-victim class (49% female, 51% youth of color) accounted for 5% of the sample and reported a mean of 11.4 (SD=1.1) types. A relatively moderate adversity class (31% female, 70% youth of color) accounted for 36% of the sample and reported a mean of 8.9 (SD=0.3) types of adversity and 2.65 (SD=1.1) types of traumatic adversity. A low adversity class (59% of the sample; 17% female, 78% youth of color) reported a mean of 7.4 (SD=0.4) adversity types but only 0.3 (SD=0.45) types of traumatic adversity. The relatively moderate adversity class was comparable to poly-victims in endorsing extensive non-victimization traumatic adversity (e.g., accidental and loss trauma), but poly-victims were distinct from both moderate and low adversity class members in the likelihood of reporting all but one type of traumatic victimization, multiple types of traumatic victimization, and severe emotional and behavioral problems. Girls were at particularly high risk of poly-victimization, and African American and White youths also were at risk for poly-victimization.

CONCLUSIONS

Although youth involved in the juvenile justice system typically have experienced substantial victimization, a poly-victimized sub-group, especially (but not exclusively) girls, warrants particular scientific, clinical, and rehabilitative attention in order to address the most severe behavioral and mental health problems and risks faced by this vulnerable population.

Synaptic regulation of affective behaviors; role of BDNF

Brain derived neurotrophic factor (BDNF), a neurotrophin essential for nervous system development and synaptic plasticity, has been found to have a significant influence on affective behaviors. The notion that an impairment in BDNF signaling might be involved in affective disorders is originated primarily from the opposing effects of antidepressants and stress on BDNF signaling. Antidepressants enhance BDNF signaling and synaptic plasticity. On the other hand, negative environmental factors such as severe stress suppress BDNF signaling, impair synaptic activity and increase susceptibility to affective disorders. Postmortem studies provided strong support for decreased BDNF signaling in depressive disorders. Remarkably, studies in humans with a single nucleotide polymorphism in the BDNF gene, the BDNF Val66Met which affects regulated release of BDNF, showed profound deficits in hippocampal and prefrontal cortical (PFC) plasticity and cognitive behaviors. BDNF regulates synaptic mechanisms responsible for various cognitive processes including attenuation of aversive memories, a key process in the regulation of affective behaviors. The unique role of BDNF in cognitive and affective behaviors suggests that cognitive deficits due to altered BDNF signaling might underlie affective disorders. Understanding how BDNF modulates synapses in neural circuits relevant to affective behaviors, particularly the medial prefrontal cortical (mPFC)-hippocampus-amygdala pathway, and its interaction with development, sex, and environmental risk factors might shed light on potential therapeutic targets for affective disorders. This article is part of the Special Issue entitled 'BDNF Regulation of Synaptic Structure, Function, and Plasticity'.

Sex differences, gonadal hormones and the fear extinction network: implications for anxiety disorders

Convergent data from rodents and human studies have led to the development of models describing the neural mechanisms of fear extinction. Key components of the now well-characterized fear extinction network include the amygdala, hippocampus, and medial prefrontal cortical regions. These models are fueling novel hypotheses that are currently being tested with much refined experimental tools to examine the interactions within this network. Lagging far behind, however, is the examination of sex differences in this network and how sex hormones influence the functional activity and reactivity of these brain regions in the context of fear inhibition. Indeed, there is a large body of literature suggesting that sex hormones, such as estrogen, do modulate neural plasticity within the fear extinction network, especially in the hippocampus.After a brief overview of the fear extinction network, we summarize what is currently known about sex differences in fear extinction and the influence of gonadal hormones on the fear extinction network. We then go on to propose possible mechanisms by which sex hormones, such as estrogen, may influence neural plasticity within the fear extinction network. We end with a discussion of how knowledge to be gained from developing this line of research may have significant ramifications towards the etiology, epidemiology and treatment of anxiety disorders.

Peritraumatic reactions and posttraumatic stress disorder in psychiatrically impaired youth

Although peritraumatic dissociation and other subjective peritraumatic reactions, such as emotional distress and arousal, have been shown to affect the relationship between a traumatic event and the development of posttraumatic stress disorder (PTSD) in adults, systematic studies with youth have not been done. In a mixed ethnic and racial sample of 90 psychiatrically impaired youth (ages 10-18, 56% boys), we investigated the contributions of peritraumatic dissociation, emotional distress, and arousal to current PTSD severity after accounting for the effects of gender, trauma history, trait dissociation, and psychopathology (attention-deficit/hyperactivity disorder and depression). Peritraumatic dissociation emerged as the only peritraumatic variable associated with current PTSD severity assessed both by questionnaire and interview methods (β = .30 and .47 p < .01). Peritraumatic dissociation can be rapidly assessed in clinical practice and warrants further testing in prospective studies as a potential mediator of the trauma-PTSD relationship in youth.

Trauma reactivation under the influence of propranolol: an examination of clinical predictors

BACKGROUND

In two recent studies conducted by our group, a treatment combining propranolol with a brief reactivation session subsequently reduced posttraumatic stress disorder (PTSD) symptom severity and diagnosis, as well as reducing psychophysiological responses during trauma-related script-driven imagery. One likely explanation for those results is that memory reconsolidation was blocked by propranolol.

OBJECTIVE

We explored the influence of various predictors on treatment outcome (i.e., PTSD severity), and whether the treated individuals improved in other important domains of functioning associated with PTSD.

METHOD

Thirty-three patients with longstanding PTSD participated in a 6-week open-label trial consisting of actively recalling one's trauma under the influence of propranolol, once a week.

RESULTS

Treated patients reported a better quality of life, less comorbid depressive symptoms, less negative emotions in their daily life and during trauma recollections. Women were also found to improve more than men. Type of trauma (childhood vs. adulthood), time elapsed since trauma, borderline personality traits, depressive symptoms severity, Axis I comorbidity, and age did not influence treatment outcome.

CONCLUSION

These results must await publication of a randomized-controlled trial to further delineate effectiveness with this novel treatment approach.

A randomized clinical trial comparing affect regulation and social problem-solving psychotherapies for mothers with victimization-related PTSD

Addressing affect dysregulation may provide a complementary alternative or adjunctive approach to the empirically supported trauma memory processing models of cognitive behavior therapy (CBT) for posttraumatic stress disorder (PTSD). A CBT designed to enhance affect regulation without trauma memory processing--trauma affect regulation: guide for education and therapy (TARGET)--was compared to present centered therapy (PCT) and wait-list (WL) conditions in a randomized clinical trial with 146 primarily low-income and ethnoracial minority mothers with PTSD. TARGET achieved statistically and clinically significant improvement on PTSD and affect regulation measures compared to WL, with more consistent and sustained (over a 6-month follow-up period) evidence of improvement than PCT. Drop-out rates (~25%) were comparable in TARGET and PCT, similar to those previously reported for trauma memory processing CBTs. Symptom worsening was rare (2-8%) and transient. Affect regulation-based CBT without trauma memory processing warrants further research as a potentially efficacious therapy for victimization-related PTSD.

Sexual behaviors among adults in Puerto Rico: a population-based study

INTRODUCTION

Given changes in sexual behaviors and norms in the United States, there is a need for current and representative data on sexual behaviors with particular interest in gender, age, and racial/ethnic group differences.

AIM

Given the limited data for Hispanics and for Puerto Rico (PR), we described patterns of sexual behaviors and characteristics among a sexually active sample (n=1,575) of adults aged 21-64 years in PR.

MAIN OUTCOME MEASURES

The main outcome measures for this study are sexual behaviors including age at sexual initiation, number of sexual partners, vaginal and anal intercourse, and oral sex, among others.

METHODS

Data from a population-based cross-sectional study in PR (2005-2008) was analyzed. The prevalence of sexual behaviors and characteristics was described by age-group and gender during the lifetime and in the past 12 months.

RESULTS

Overall, 96.8%, 81.6%, and 60.9% of participants had ever engaged in vaginal, oral and anal sex, respectively, whereas 23.7% were seropositive to any of the sexually transmitted infections under study. Sexual initiation≤15 years was reported by 37.8% of men and 21.4% of women; whereas 47.9% of men and 13.2% of women reported to have had ≥7 sexual partners in their lifetime. Approximately, 3% of women and 6% of men reported same-sex sexual practices, while history of forced sexual relations was reported by 9.6% of women and 2.5% of men. Sexual initiation≤15 years was more common among individuals aged 21-34 years (41.4% men and 33.6% women) as compared with older cohorts. Although having had ≥7 sexual partners over a lifetime among men was similar across age groups, this behavior decreased in older women cohorts. In both genders, the prevalence of oral and anal sex was also lower in the older age cohorts.

CONCLUSION

This study provides essential information that can help health professionals understand the sexual practices and needs of the population of PR.

[Implementing a pluridisciplinary network of intimate partner violence prevention]

INTRODUCTION

The victims of a spouse's violence have a high risk of developing mental and physical health symptoms. The efforts aimed at preventing the consequences of domestic violence are encouraged by the current literature as well as the national and international recommendations. They highlight the fact that intervention and treatment programs have more or less failed.

BACKGROUND

This publication introduces the main stages of the implementation of a network, the main goals of which are to improve the knowledge and professional practices aimed at the victims of domestic violence, and to enhance the continuation and quality of health and social care (screening, assessment and addressing). After relating the developments and the methodology of the victims' consultations carried out, we will show how such a network device enables one to exceed the usual practice limits. First, we point out certain specificities pertaining to postimmediate psychological care (psychological debriefing) of victims of intimate partner violence.

METHODOLOGY

After presenting a specific methodology of assessment of the global situation of the victim, three illustrations of the specific consequences of domestic violence will be made, in order to highlight the interest of collaborating between professionals who are used to tackling this issue. First, is the way to empower women and help them to avoid assaults and thus prevent victimisation. The overall goal of this specific intervention is to teach women that they can end the cycle of perpetuating of intimate partner violence by learning safety factors, such as what to do if more violence occurs and where and how to seek assistance if it were to recur. Second, is to prevent the consequences of domestic violence on a child's development. It is based on the fact that children who witness domestic violence are negatively affected, as children who witness abuse are likely to experience a number of psychological symptoms. So the network proposes preventive measures and specific addressing to reduce the impact of violence. The third example relates to the high proportion of sexual assault among the nature of violence women suffer from. Victims of marital rape experience significant levels of negative mental and physical health symptoms. Network professionals have improved the screening of sexual assault in order to propose to the victims specific addressing, in terms of gynaecologic and psychological care.

DISCUSSION

As a consequence, we deal with the professional and deontological positioning that the medical professionals have towards this device. The network device aims at going beyond the limits of the usual care, both through a pooling of knowledge and multidisciplinary practices. The establishment of common models of intervention (working groups), also suggests a best practice in relation to complex issues: the establishment of a network is a means of establishing the link between professionals. However, professionals in a network should routinely question their practice and ethics and to avoid "confusion of roles" - the risk of multidisciplinary and standard practices. Differences and professional specialisation are essential components of a care offer tailored to the clinical complexity of victims of domestic violence. It now appears necessary to assess the impact of this care at the social, health and psychological levels of victims of domestic violence.

Posttraumatic stress disorder in migraine

OBJECTIVE

To evaluate the relative frequency of posttraumatic stress disorder (PTSD) in episodic migraine (EM) and chronic daily headache (CDH) sufferers and the impact on headache-related disability.

BACKGROUND

Approximately 8% of the population is estimated to have PTSD. Recent studies suggest a higher frequency of PTSD in headache disorders. The association of PTSD and headache-related disability has not been examined.

METHODS

A prospective study was conducted at 6 headache centers. PTSD was assessed using the life events checklist and PTSD checklist, civilian version (PCL-C). We compared data from EM to CDH, and migraine with PTSD to migraine without PTSD. The PHQ-9 was used to assess depression, and headache impact test (HIT-6) to assess disability.

RESULTS

Of 767 participants, 593 fulfilled criteria for EM or CDH and were used in this analysis. The mean age was 42.2 years and 92% were women. The frequency of PTSD was greater in CDH than in EM (30.3% vs 22.4%, P = .043), but not after adjusting for demographics and depression (P = .87). However, participants with major depression and PTSD were more likely to have CDH than EM (24.6% vs 15.79%, P < .002). Disability was greater in migraineurs with PTSD, even after adjustments (65.2 vs 61.7, P = .002).

CONCLUSION

The frequency of PTSD in migraineurs, whether episodic or chronic, is higher than the historically reported prevalence of PTSD in the general population. In addition, in the subset of migraineurs with depression, PTSD frequency is greater in CDH sufferers than in episodic migraineurs. Finally, the presence of PTSD is independently associated with greater headache-related disability in migraineurs.