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Characterizing the effects of tonic 17β-estradiol administration on spatial learning and memory in the follicle-deplete middle-aged female rat

Koebele, Stephanie V; Mennenga, Sarah E; Poisson, Mallori L; Hewitt, Lauren T; Patel, Shruti; Mayer, Loretta P; Dyer, Cheryl A; Bimonte-Nelson, Heather A
17β-estradiol (E2)-containing hormone therapy is a safe, effective way to alleviate unwanted menopause symptoms. Preclinical research has focused upon the role of E2 in learning and memory using a surgically menopausal rodent model whereby the ovaries are removed. Given that most women retain their reproductive tract and undergo a natural menopause transition, it is necessary to understand how exogenous E2 impacts a structurally intact, but follicle-deplete, system. In the current study, 8 month old female rats were administered the ovatoxin 4-vinylcyclohexene diepoxide (VCD), which accelerates ovarian follicular depletion, to model the human menopause transition. After follicular depletion, at 11 months old, rats were administered Vehicle or tonic E2 treatment for 12 days prior to behavioral evaluation on spatial working and reference memory tasks. Results demonstrated that E2 had both enhancing and impairing effects on taxed working memory depending upon the learning or retention phases of the water radial-arm maze, with no impact on reference memory. Relationships between memory scores and circulating estrogen levels were specific to follicle-depleted rats without E2 treatment. Collectively, findings demonstrate the complexity of E2 administration in a follicle-depleted background, with cognitive effects specific to working memory; furthermore, E2 administration altered circulating hormonal milieu and relationships between hormone profiles and memory. In sum, menopausal etiology impacts the parameters of E2 effects on cognition, complementing prior work with other estrogen compounds. Deciphering estrogenic actions in a system wherein the reproductive tract remains intact with follicle-depleted ovaries, thus modeling the majority or menopausal women, is critical for translational perspectives.
PMID: 32949557
ISSN: 1095-6867
CID: 4624812

Implementation of strength-based case management for opioid-dependent patients presenting in medical emergency departments: rationale and study design of a randomized trial

Regis, Amber; Meyers-Ohki, Sarah E; Mennenga, Sarah E; Greco, Peter P; Glisker, Richard; Kolaric, Rhonda; McCormack, Ryan P; Rapp, Richard C; Bogenschutz, Michael P
BACKGROUND:As the USA grapples with an opioid epidemic, medical emergency departments (EDs) have become a critical setting for intervening with opioid-dependent patients. Brief interventions designed to bridge the gap from acute ED care to longer-term treatment have shown limited efficacy for this population. Strength-based case management (SBCM) has shown strong effects on treatment linkage among patients with substance use disorders in other healthcare settings. This study aimed to investigate whether SBCM is an effective model for linking opioid-dependent ED patients with addiction treatment and pharmacotherapy. Here, we describe the implementation and challenges of adapting SBCM for the ED (SBCM-ED). Study rationale, design, and baseline characteristics are also described. METHODS:This study compared the effects of SBCM-ED to screening, assessment, and referral alone (SAR) on treatment linkage, substance use, and functioning. We recruited participants from a public hospital in NYC. Working alliance between case managers and participants and the feasibility of SBCM implementation were evaluated. Baseline data from the randomized sample were analyzed for group equivalency. Outcomes analyses are forthcoming. RESULTS:Three hundred adult participants meeting DSM-IV criteria for opioid dependence were randomly assigned to either SBCM, in which they received a maximum of six case management sessions within 90 days of enrollment, or SAR, in which they received a comprehensive referral list and pamphlet outlining drug use consequences. No significant differences were found between groups at baseline on demographic or substance use characteristics. All SAR participants and 92.6% of SBCM-ED participants initiated their assigned intervention. Over half of SBCM-ED first sessions occurred in the ED on the day of enrollment. Case managers developed a strong working alliance with SBCM-ED participants after just one session. CONCLUSION/CONCLUSIONS:Interventions that exceed SBIRT were accepted by an opioid-dependent patient population seen in an urban medical ED. At the time of study funding, this trial was one of the first to focus specifically on this population in this challenging setting. The successful implementation of SBCM demonstrates its adaptability to the ED and may serve as a potential model for EDs seeking to adopt an intervention that overcomes the barrier between the ED encounter and more intensive treatment. TRIAL REGISTRATION/BACKGROUND:ClinicalTrials.gov NCT02586896 . Registered on 27 October 2015.
PMID: 32883337
ISSN: 1745-6215
CID: 4583492

Long-term follow-up of psilocybin-assisted psychotherapy for psychiatric and existential distress in patients with life-threatening cancer

Agin-Liebes, Gabrielle I; Malone, Tara; Yalch, Matthew M; Mennenga, Sarah E; Ponté, K Linnae; Guss, Jeffrey; Bossis, Anthony P; Grigsby, Jim; Fischer, Stacy; Ross, Stephen
BACKGROUND/UNASSIGNED:A recently published randomized controlled trial compared single-dose psilocybin with single-dose niacin in conjunction with psychotherapy in participants with cancer-related psychiatric distress. Results suggested that psilocybin-assisted psychotherapy facilitated improvements in psychiatric and existential distress, quality of life, and spiritual well-being up to seven weeks prior to the crossover. At the 6.5-month follow-up, after the crossover, 60-80% of participants continued to meet criteria for clinically significant antidepressant or anxiolytic responses. METHODS/UNASSIGNED:The present study is a long-term within-subjects follow-up analysis of self-reported symptomatology involving a subset of participants that completed the parent trial. All 16 participants who were still alive were contacted, and 15 participants agreed to participate at an average of 3.2 and 4.5 years following psilocybin administration. RESULTS/UNASSIGNED:Reductions in anxiety, depression, hopelessness, demoralization, and death anxiety were sustained at the first and second follow-ups. Within-group effect sizes were large. At the second (4.5 year) follow-up approximately 60-80% of participants met criteria for clinically significant antidepressant or anxiolytic responses. Participants overwhelmingly (71-100%) attributed positive life changes to the psilocybin-assisted therapy experience and rated it among the most personally meaningful and spiritually significant experiences of their lives. CONCLUSION/UNASSIGNED:These findings suggest that psilocybin-assisted psychotherapy holds promise in promoting long-term relief from cancer-related psychiatric distress. Limited conclusions, however, can be drawn regarding the efficacy of this therapy due to the crossover design of the parent study. Nonetheless, the present study adds to the emerging literature base suggesting that psilocybin-facilitated therapy may enhance the psychological, emotional, and spiritual well-being of patients with life-threatening cancer.
PMID: 31916890
ISSN: 1461-7285
CID: 4257552

Psilocybin-Assisted Psychotherapy for Alcohol Use Disorder: A Randomized Controlled Trial [Meeting Abstract]

O\Donnell, Kelley; Mennenga, Sarah; Podrebarac, Samantha; Owens, Lindsey; Malone, Tara; Rogers, Ursula; Bogenschutz, Michael
ISI:000596371000367
ISSN: 0893-133x
CID: 4729792

Psilocybin for depression: Considerations for clinical trial design

O'Donnell, Kelley C.; Mennenga, Sarah E.; Bogenschutz, Michael P.
Background and aims: Given the enormous global burden of depressive illness, there is an urgent need to develop novel and more effective treatments for major depressive disorder (MDD). Recent findings have suggested that psychedelic drugs may have a role in the treatment of depressive symptoms, and a number of groups are in the process of developing protocols to study this question systematically. Given the subjective quality of both the psychedelic experience and depressive symptomatology, great care must be taken when designing a protocol to study the clinical efficacy of psychedelic drugs. This study will discuss many factors to consider when designing a clinical trial of psilocybin for MDD. Methods: We provide a thorough review of pertinent research into antidepressant clinical trial methodology and review practical considerations that are relevant to the study of psychedelic-Assisted treatment for depression. Results: We discuss participant selection (including diagnostic accuracy, exclusion criteria, characteristics of the depressive episode, and the use of concurrent medications), study interventions (including dosing regimens, placebo selection, non-pharmacological components of treatment, and the importance of blinding), trial duration, outcome measures, and safety considerations. Conclusions: Careful and transparent study design and data analysis will maximize the likelihood of generating meaningful, reproducible results, and identifying a treatment-specific effect. Meeting the highest standards for contemporary trial design may also broaden the acceptance of psychedelic research in the scientific community at large.
SCOPUS:85116428923
ISSN: 2559-9283
CID: 5573162

Brief Report: Gender differences in demographic and clinical characteristics of patients with opioid use disorder entering a comparative effectiveness medication trial

Campbell, Aimee N C; Barbosa-Leiker, Celestina; Hatch-Maillette, Mary; Mennenga, Sarah E; Pavlicova, Martina; Scodes, Jennifer; Saraiya, Tanya; Mitchell, Shannon G; Rotrosen, John; Novo, Patricia; Nunes, Edward V; Greenfield, Shelly F
BACKGROUND & OBJECTIVES/OBJECTIVE:We investigated gender differences in individuals with opioid use disorder (OUD) receiving inpatient services and entering a randomized controlled trial comparing extended-release naltrexone to buprenorphine. METHODS:Participants (N = 570) provided demographic, substance use, and psychiatric information. RESULTS:Women were significantly younger, more likely to identify as bisexual, live with a sexual partner, be financially dependent, and less likely employed. Women reported significantly greater psychiatric comorbidity and risk behaviors, shorter duration but similar age of onset of opioid use. DISCUSSION/CONCLUSIONS/CONCLUSIONS:Findings underscore economic, psychiatric, and infection vulnerability among women with OUD. SCIENTIFIC SIGNIFICANCE/CONCLUSIONS:Interventions targeting these disparities should be explored, as women may face complicated treatment initiation, retention, and recovery. (Am J Addict 2018;XX:1-6).
PMCID:6124662
PMID: 30106494
ISSN: 1521-0391
CID: 3241302

Psilocybin-Assisted Treatment for Alcohol Use Disorder: A Clinical Perspective [Meeting Abstract]

Amegadzie, Sean; Mennenga, Sarah; Podrebarac, Samantha; Duane, Holly; Ross, Stephen; Bogenschutz, Michael
ISI:000434365100068
ISSN: 1055-0496
CID: 3156092

Clinical Interpretations of Patient Experience in a Trial of Psilocybin-Assisted Psychotherapy for Alcohol Use Disorder

Bogenschutz, Michael P; Podrebarac, Samantha K; Duane, Jessie H; Amegadzie, Sean S; Malone, Tara C; Owens, Lindsey T; Ross, Stephen; Mennenga, Sarah E
After a hiatus of some 40 years, clinical research has resumed on the use of classic hallucinogens to treat addiction. Following completion of a small open-label feasibility study, we are currently conducting a double-blind placebo-controlled clinical trial of psilocybin-assisted treatment of alcohol use disorder. Although treatment effects cannot be analyzed until the study is complete, descriptive case studies provide a useful window into the therapeutic process of psychedelic-assisted treatment of addiction. Here we describe treatment trajectories of three participants in the ongoing trial to illustrate the range of experiences and persisting effects of psilocybin treatment. Although it is difficult to generalize from a few cases, several qualitative conclusions can be drawn from the data presented here. Although participants often find it difficult to describe much of their psilocybin experience, pivotal moments tend to be individualized, extremely vivid, and memorable. Often, the qualitative content extends beyond the clinical problem that is being addressed. The participants discussed in this paper experienced acute and lasting alterations in their perceptions of self, in the quality of their baseline consciousness, and in their relationship with alcohol and drinking. In these cases, experiences of catharsis, forgiveness, self-compassion, and love were at least as salient as classic mystical content. Finally, feelings of increased "spaciousness" or mindfulness, and increased control over choices and behavior were reported following the drug administration sessions. Ultimately, psilocybin-assisted treatment appears to elicit experiences that are extremely variable, yet seem to meet the particular needs of the individual.
PMCID:5826237
PMID: 29515439
ISSN: 1663-9812
CID: 2973222

Individual Experiences in Four Cancer Patients Following Psilocybin-Assisted Psychotherapy

Malone, Tara C; Mennenga, Sarah E; Guss, Jeffrey; Podrebarac, Samantha K; Owens, Lindsey T; Bossis, Anthony P; Belser, Alexander B; Agin-Liebes, Gabrielle; Bogenschutz, Michael P; Ross, Stephen
A growing body of evidence shows that existential and spiritual well-being in cancer patients is associated with better medical outcomes, improved quality of life, and serves as a buffer against depression, hopelessness, and desire for hastened death. Historical and recent research suggests a role for psilocybin-assisted psychotherapy in treating cancer-related anxiety and depression. A double-blind controlled trial was performed, where 29 patients with cancer-related anxiety and depression were randomly assigned to treatment with single-dose psilocybin (0.3 mg/kg) or niacin in conjunction with psychotherapy. Previously published results of this trial demonstrated that, in conjunction with psychotherapy, moderate-dose psilocybin produced rapid, robust, and enduring anxiolytic, and anti-depressant effects. Here, we illustrate unique clinical courses described by four participants using quantitative measures of acute and persisting effects of psilocybin, anxiety, depression, quality of life, and spiritual well-being, as well as qualitative interviews, written narratives, and clinician notes. Although the content of each psilocybin-assisted experience was unique to each participant, several thematic similarities and differences across the various sessions stood out. These four participants' personal narratives extended beyond the cancer diagnosis itself, frequently revolving around themes of self-compassion and love, acceptance of death, and memories of past trauma, though the specific details or narrative content differ substantially. The results presented here demonstrate the personalized nature of the subjective experiences elicited through treatment with psilocybin, particularly with respect to the spiritual and/or psychological needs of each patient.
PMCID:5891594
PMID: 29666578
ISSN: 1663-9812
CID: 3039602

The PKC-beta selective inhibitor, Enzastaurin, impairs memory in middle-aged rats

Willeman, Mari N; Mennenga, Sarah E; Siniard, Ashley L; Corneveaux, Jason J; De Both, Matt; Hewitt, Lauren T; Tsang, Candy W S; Caselli, Jason; Braden, B Blair; Bimonte-Nelson, Heather A; Huentelman, Matthew J
Enzastaurin is a Protein Kinase C-beta selective inhibitor that was developed to treat cancers. Protein Kinase C-beta is an important enzyme for a variety of neuronal functions; in particular, previous rodent studies have reported deficits in spatial and fear-conditioned learning and memory with lower levels of Protein Kinase C-beta. Due to Enzastaurin's mechanism of action, the present study investigated the consequences of Enzastaurin exposure on learning and memory in 12-month-old Fischer-344 male rats. Rats were treated daily with subcutaneous injections of either vehicle or Enzastaurin, and behaviorally tested using the spatial reference memory Morris Water Maze. Rats treated with Enzastaurin exhibited decreased overnight retention and poorer performance on the latter testing day, indicating a mild, but significant, memory impairment. There were no differences during the probe trial indicating that all animals were able to spatially localize the platform to the proper quadrant by the end of testing. RNA isolated from the hippocampus was analyzed using Next Generation Sequencing (Illumina). No statistically significant transcriptional differences were noted. Our findings suggest that acute Enzastaurin treatment can impair hippocampal-based learning and memory performance, with no effects on transcription in the hippocampus. We propose that care should be taken in future clinical trials that utilize Protein Kinase C-beta inhibitors, to monitor for possible cognitive effects, future research should examine if these effects are fully reversible.
PMCID:5988320
PMID: 29870545
ISSN: 1932-6203
CID: 4624802