111 results match your criteria: "Yale Stress Center[Affiliation]"

Neural responses to stress and alcohol cues in individuals with pain with and without alcohol use disorder.

Addict Biol

December 2024

Yale Stress Center, Department of Psychiatry, Yale University School of Medicine, Yale Stress Center, New Haven, Connecticut, USA.

Pain and alcohol use disorder (AUD) frequently co-occur, but the underlying neurobiology is not well-understood. Although many studies have reported disruptions in stress and reward cue-elicited neural reactivity and heightened alcohol craving in individuals with AUD, little is known about these constructs among patients who experience pain. Here, individuals with pain (Pain+, n = 31) and without pain (Pain-, n = 37) completed a well-validated functional magnetic resonance imaging (fMRI) paradigm involving stress (S), alcohol (A) and neutral (N) cue exposure with repeated alcohol craving assessments.

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Objective: To study the sex and hormonal effects on cortico-striatal engagement during drug cue-reactivity and its regulation focusing on drug reappraisal.

Methods: Forty-nine men (age=41.96±9.

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Substance use disorders (SUDs), including cocaine use disorder (CUD), have significant negative health risks and impose a substantial social burden, yet effective treatments are limited. Pregnenolone, a neuroactive steroid precursor, has been shown to reduce alcohol craving and normalize stress biology in individuals with CUD, but its clinical utility has been questioned due to limited data on bioavailability and the stability of blood levels in humans. Thus, this pilot study aimed to determine whether twice-daily oral pregnenolone (PREG) at 300 mg/day and 500 mg/day versus placebo in week two of PREG administration led to stable increased plasma pregnenolone levels in individuals with CUD.

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High stress in parents may affect parenting and subsequent child socioemotional and behavioral development. Previous evidence suggests that highly stressed parents are more likely to engage in negative parenting, which is less structured and more punitive. However, the effects of life stress versus parent specific stress on parent-child interactions in early childhood has not been well studied, especially in minority and low-income samples.

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Brain correlates and functional connectivity linking stress, autonomic dysregulation, and alcohol motivation.

Neurobiol Stress

July 2024

Yale Stress Center, Department of Psychiatry, Yale University School of Medicine, 2 Church Street South, New Haven, CT, 06519, USA.

High stress is a key risk factor for alcohol use disorder (AUD) and often accompanied by physiological dysregulation including autonomic nervous system (ANS) disruptions. However, neural mechanisms underlying drinking behaviors associated with stress and ANS disruptions remain unclear. The current study aims to understand neural correlates of stress, ANS disruptions, and subsequent alcohol intake in social drinkers with risky drinking.

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Article Synopsis
  • Childhood adversity is associated with lasting psychological and physical health issues, including obesity and metabolic diseases, which can be linked to epigenetic changes.
  • In a study involving two cohorts, researchers found that those with early life stress showed increased biological aging (measured by GrimAge Acceleration) and higher BMI and insulin resistance, particularly related to experiences of abuse.
  • The findings suggest that epigenetic factors and the interactions with obesity might play key roles in understanding how childhood adversity impacts long-term health outcomes.
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Background: The objective of this study was to pilot test newly developed personalized imagery procedures to investigate the impact of racial stress on alcohol craving and emotional and physiological response in Black adults with alcohol use disorder (AUD).

Methods: Twenty Black adults (45% women, mean=37.05, SD=13.

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Neural Correlates of Stress and Alcohol Cue-Induced Alcohol Craving and of Future Heavy Drinking: Evidence of Sex Differences.

Am J Psychiatry

May 2024

Yale Stress Center, Department of Psychiatry (Radoman, Fogelman, Seo, Sinha), and Department of Radiology and Biomedical Imaging (Radoman, Lacadie), Yale University School of Medicine, New Haven, Conn.

Objective: Stress and alcohol cue reactivity are associated with poor treatment outcomes in alcohol use disorder (AUD), but sex-specific neural correlates of stress and alcohol cue-induced craving compared with neutral cue-induced craving and of heavy drinking outcomes in AUD have not been examined. Thus, this study prospectively examined these associations and assessed sex differences.

Methods: Treatment-seeking adults with AUD (N=77; 46 men and 31 women) completed a functional MRI task involving stress, alcohol, and neutral cue exposure with repeated assessments of alcohol craving.

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Polysubstance use (PSU), the use of two or more substances proximally, is highly prevalent and has amplified the risk for morbidity and mortality. However, PSU patterns and associated risk factors are not well characterized. This may be especially relevant to women who are known to be vulnerable to stress/trauma, craving, pain, and anxious and depressive symptoms as associated risk factors for PSU.

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Background: Alcohol use disorder (AUD) is associated with significant liver pathology marked by elevated liver enzymes. Prazosin, an alpha1-noradrenergic antagonist significantly improves alcohol drinking outcomes in individuals with alcohol withdrawal symptoms (AW), but effects on liver enzymes are unknown. We assessed the effects of prazosin treatment on the liver enzymes alanine transaminase (ALT), aspartate transaminase (AST), and gamma-glutamyltransferase (GGT) in individuals with AUD.

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Laboratory and Real-World Experimental Approaches to Understanding Alcohol Relapse.

Curr Top Behav Neurosci

November 2023

Department of Psychiatry, The Yale Stress Center, Yale University School of Medicine, New Haven, CT, USA.

Alcohol use disorder is highly prevalent and high risk of relapse remains a significant treatment challenge. Therefore, the utility of human laboratory models of relapse to further the understanding of psychobiological mechanisms that precipitate relapse risk and allow testing of novel interventions could be of benefit in expediting the development of effective treatments to target high relapse risk. Stress is a risk factor for the development of AUD and for relapse, and furthermore, chronic alcohol use leads to adaptations in central and peripheral stress biology.

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Introduction: To inform approaches for adapting substance use treatment for Black adults, the aim of this study was to thematically analyze the stressors, triggers for substance use, and neutral/relaxing events reported among Black adults who participated in a lab paradigm.

Methods: The sample included 36 Black adults (mean age [years] = 37.47, SD = 7.

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Patients with AUD exhibit dampened heart rate variability during sleep as compared to social drinkers.

Alcohol Alcohol

November 2023

Department of Psychiatry, Yale Stress Center, Yale School of Medicine, 2 Church St South Suite 209, New Haven, CT 06519, United States.

Chronic heavy alcohol use profoundly affects the cardiovascular system, contributing to several life-threatening cardiovascular diseases. Heart rate variability (HRV), or the fluctuations in heart rate, reflects dynamic autonomic nervous system processes that change to meet biological demands and environmental challenges. In the current study, we examined whether HRV metrics are altered in alcohol use disorder (AUD) during waking and sleeping with passive biomonitoring as participants went about their daily lives.

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Motivation states for physical activity and sedentarism potentially vary from moment to moment. The CRAVE scale (Cravings for Rest and Volitional Energy Expenditure) was developed to assess transient wants and desires to move. Three studies were conducted with the aims of: (1) translating and validating the scale in Brazilian Portuguese, (2) examining changes with exercise, and (3) determining the best single-item for Move and Rest subscales for English and Portuguese.

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In the last decade, alcohol consumption in the US has risen by 84% in women compared with 35% in men. Furthermore, research has shown that sex- and gender-related differences may disadvantage women in terms of developing a range of psychological, cognitive, and medical problems considerably earlier in their drinking history than men, and despite consuming a similar quantity of substances. While this "telescoping" process has been acknowledged in the literature, a concomitant understanding of the underlying biobehavioral mechanisms, and an increase in the development of specific treatments tailored to women, has not occurred.

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Black Americans suffer lower life expectancy and show signs of accelerated aging compared to other Americans. While previous studies observe these differences in children and populations with chronic illness, whether these pathologic processes exist or how these pathologic processes progress has yet to be explored prior to the onset of significant chronic illness, within a young adult population. Therefore, we investigated race-related differences in epigenetic age in a cross-sectional sample of young putatively healthy adults and assessed whether lifetime stress and/or trauma mediate those differences.

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Objective: Mindfulness is an established approach to reduce distress and stress reactivity by improving awareness and tolerability of thoughts and emotions. This study compares mindfulness training to sleep hygiene in persons with multiple sclerosis (PWMS) who report chronic insomnia, examining sleep efficiency (SE), self-reported sleep quality and quality of life.

Methods: Fifty-three PWMS were randomized (1:1) in a single-blinded, parallel group design to ten, two-hour weekly sessions of Mindfulness Based Stress Intervention for Insomnia (MBSI-I) over a span of ten weeks or a single, one hour sleep hygiene (SH) session over one day.

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Chronic pain, chronic stress and substance use: overlapping mechanisms and implications.

Front Pain Res (Lausanne)

June 2023

Department of Psychiatry and the Yale Stress Center, Yale University School of Medicine, New Haven, CT, United States.

Chronic pain is among the most common reasons adults in the U.S. seek medical care.

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Preclinical and clinical work suggests that mifepristone may be a viable treatment for alcohol use disorder (AUD). This was a Phase 1/2, outpatient, cross-over, randomized, double-blind, placebo-controlled trial with non-treatment-seeking individuals with AUD (N = 32). We assessed safety, alcohol craving and consumption, after 1-week mifepristone 600 mg/day administration, in a human laboratory study comprised of a single oral yohimbine administration (32.

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Background: Stress and depression have each been associated with relapse risk. In clinical practice, chronic alcohol use is often accompanied by poor emotional and self-regulatory processes. Tonic and phasic changes in stress responsivity impact an individual's relapse risk to alcohol.

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Prior studies show that individuals with alcohol use disorder exhibit exaggerated behavioral and brain reactivity to uncertain threats (U-threat). It is posited this brain-based factor emerges early in life and contributes to the onset and escalation of alcohol problems. However, no study to date has tested this theory using a longitudinal within-subjects design.

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Motivation for physical activity and sedentary behaviors (e.g., desires, urges, wants, cravings) varies from moment to moment.

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Background: Substance use disorders (SUDs) are chronically recurring illnesses, where stress and drug cues significantly increase drug craving and risk of drug use recurrence. This study examined sex differences in functional magnetic resonance imaging (fMRI) brain responses to stress and drug cue exposure and assessed their prospective association with future drug use post-treatment.

Methods: Inpatient, treatment engaged men (N = 46) and women (N = 26) with SUDs, including alcohol, cocaine and/or cannabis use disorders, participated in an fMRI scan that assessed subjective (anxiety, drug craving), heart rate and neural responses to brief individualized script-driven imagery of stress, drug, and neutral-relaxing trials.

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Rationale: Chronic alcohol intake down-regulates GABAergic transmission and reduces levels of neuroactive steroids. These changes are associated with greater stress dysregulation and high alcohol craving which in turn increases relapse risk.

Objectives: This study tested whether potentiation of the neurosteroid system with pregnenolone (PREG), a precursor to neuroactive steroids and known to increase GABAergic transmission, will normalize chronic alcohol-related stress adaptations in the hypothalamic-pituitary-adrenal (HPA) axis and autonomic responses and reduce alcohol craving to significantly impact relapse risk.

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