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Oquendo MA, Galfalvy HC, Choo TH, Herzog S, Burke AK, Sublette ME, Mann JJ, Stanley BH. Occurrence and characteristics of suicidal ideation in psychiatrically healthy individuals based on ecological momentary assessment. Mol Psychiatry 2024:10.1038/s41380-024-02560-2. [PMID: 38729992 DOI: 10.1038/s41380-024-02560-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Revised: 04/03/2024] [Accepted: 04/10/2024] [Indexed: 05/12/2024]
Abstract
Decedents with no known mental disorder comprise 5-40% of suicides, suggesting that suicide ideation (SI) and behavior may occur in the psychiatrically healthy with important implications for suicide risk screening. Healthy Volunteers (HV) and patients with Major Depressive Disorder (MDD) provided 7 days of Ecological Momentary Assessment (EMA) data about SI and stressors. Longitudinal mixed effects logistic regression models compared HV and patient SI and stressors. Mixed effects linear regression models compared HVs' and patients' SI score change from the previous epoch's SI score when each stressor occurred. HVs (n = 42) reported less frequent (p < 0.001) and less intense SI (p < 0.003) than patients (n = 80), yet did endorse SI and/or SI-related items in 44% of EMA epochs, endorsing SI items in 25% of epochs with non-zero SI scores. For 7 of 8 stressors, patients reported stressors more often than HVs (all p < 0.001) responding to them with increased SI (0.0001 < p < 0.0472). HVs were relatively resilient to stressors, reporting SI increases only in response to neglect (p < 0.0147). Although SI and SAs are documented among psychiatrically healthy individuals, scientific attention to these observations has been scant. Real-time SI measurement showed that HVs' SI was less pronounced than MDD patients', but was endorsed, nonetheless. Patients were more likely to report stressors than HVs, perhaps due to greater sensitivity to the environment, and reported SI in response to stressors, which was less common in HVs. Both MDD patients and HVs most often manifested passive SI (viz, "decreased wish to live"). However, passive SI (viz, "desire for death"), may predict suicide, even absent SI per se (thinking about killing yourself). This study validates the utility of real-time SI assessment, showing that HVs endorse SI items in 11% of epochs, which implies that suicide risk screening focused on those with mental disorders may be too narrow an approach.
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Affiliation(s)
- Maria A Oquendo
- Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.
| | - Hanga C Galfalvy
- Vagelos College of Physicians and Surgeons, Columbia University and New York State Psychiatric Institute, New York, NY, USA
| | - Tse-Hwei Choo
- Vagelos College of Physicians and Surgeons, Columbia University and New York State Psychiatric Institute, New York, NY, USA
| | - Sarah Herzog
- Vagelos College of Physicians and Surgeons, Columbia University and New York State Psychiatric Institute, New York, NY, USA
| | - Ainsley K Burke
- Vagelos College of Physicians and Surgeons, Columbia University and New York State Psychiatric Institute, New York, NY, USA
| | - M Elizabeth Sublette
- Vagelos College of Physicians and Surgeons, Columbia University and New York State Psychiatric Institute, New York, NY, USA
| | - J John Mann
- Vagelos College of Physicians and Surgeons, Columbia University and New York State Psychiatric Institute, New York, NY, USA
| | - Barbara H Stanley
- Vagelos College of Physicians and Surgeons, Columbia University and New York State Psychiatric Institute, New York, NY, USA
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Herzog S, Galfalvy H, Keilp JG, Mann JJ, Sublette ME, Burke A, Oquendo MA, Stanley BH. Relationship of stress-reactive cortisol to suicidal intent of prior attempts in major depression. Psychiatry Res 2023; 327:115315. [PMID: 37542793 PMCID: PMC10530442 DOI: 10.1016/j.psychres.2023.115315] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 06/02/2023] [Accepted: 06/16/2023] [Indexed: 08/07/2023]
Abstract
Higher intent suicide attempts carry elevated risk of future suicidal behavior. Abnormal functioning of the hypothalamic-pituitary-adrenal (HPA) axis is both linked to nonfatal suicidal behavior and suicide deaths in major depressive disorder. Few studies, however, have identified biological markers of a high-intent suicidal subgroup. We examined HPA axis output and reactivity to the Trier Social Stress Test (TSST) via salivary cortisol in depressed individuals (N=68) with a suicide attempt (SA) history. A median split of higher and lower suicidal intent scores was used to define groups. Individuals with high intent SA had attenuated total cortisol output (AUCg), F(1,60)=10.04, SE=5.095, p=.003, and lower HPA-axis stress responsivity to the TSST (AUCi), F(1,60)=4.50, SE=4.604, p=.039, compared with the low intent SA group. The high intent group also reported more pronounced negative affect than the low intent group (F[1,61]=6.413, SE=10.55, p=.014) both at baseline (meandiff=22.32, p=.038) and in response to the stressor task (meandiff=37.62, p=.003). Vulnerability to suicidal behavior in high-intent individuals may be related to the combined profile of impaired physiological responses to stress and greater negative affectivity. This clinical and biologic subgroup may benefit from targeted suicide prevention interventions.
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Affiliation(s)
- Sarah Herzog
- Molecular Imaging and Neuropathology Division, New York State Psychiatric Institute, New York, NY; Department of Psychiatry, Columbia University Vagelos College of Physicians and Surgeons, New York, NY.
| | - Hanga Galfalvy
- Department of Psychiatry, Columbia University Vagelos College of Physicians and Surgeons, New York, NY; Mental Health Data Science Division, New York State Psychiatric Institute, New York, NY; Department of Biostatistics, Mailman School of Public Health, Columbia University, New York, NY
| | - John G Keilp
- Molecular Imaging and Neuropathology Division, New York State Psychiatric Institute, New York, NY; Department of Psychiatry, Columbia University Vagelos College of Physicians and Surgeons, New York, NY
| | - J John Mann
- Molecular Imaging and Neuropathology Division, New York State Psychiatric Institute, New York, NY; Department of Psychiatry, Columbia University Vagelos College of Physicians and Surgeons, New York, NY
| | - M Elizabeth Sublette
- Molecular Imaging and Neuropathology Division, New York State Psychiatric Institute, New York, NY; Department of Psychiatry, Columbia University Vagelos College of Physicians and Surgeons, New York, NY
| | - Ainsley Burke
- Molecular Imaging and Neuropathology Division, New York State Psychiatric Institute, New York, NY; Department of Psychiatry, Columbia University Vagelos College of Physicians and Surgeons, New York, NY
| | - Maria A Oquendo
- Department of Psychiatry, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Barbara H Stanley
- Molecular Imaging and Neuropathology Division, New York State Psychiatric Institute, New York, NY; Department of Psychiatry, Columbia University Vagelos College of Physicians and Surgeons, New York, NY
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Herzog S, Keilp JG, Galfalvy H, Mann JJ, Stanley BH. Attentional control deficits and suicidal ideation variability: An ecological momentary assessment study in major depression. J Affect Disord 2023; 323:819-825. [PMID: 36549341 PMCID: PMC10448451 DOI: 10.1016/j.jad.2022.12.053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/15/2022] [Revised: 12/10/2022] [Accepted: 12/14/2022] [Indexed: 12/23/2022]
Abstract
Suicidal behavior is associated with deficits in cognitive control; however, suicidal ideation (SI), a key precursor to suicidal behavior, has been less consistently linked to neuropsychological functioning. Additionally, no study to date has examined attentional control capacities in relation to variability in suicidal ideation, defined as fluctuation in SI intensity and duration across short periods of time. Prior research suggests that suicidal individuals with highly variable SI experience greater stress-responsive increases in SI and cortisol, potentially raising risk for suicidal behavior. Here, we examined attentional control capacities associated with SI variability and severity in ninety-five subjects with major depressive disorder. Variability and severity of SI and depressive affect were quantified using Ecological Momentary Assessment (EMA) over a 7-day period. Participants completed the Continuous Performance Task (CPT) and a computerized Stroop task for assessment of attentional control. EMA SI variability was associated with greater attentional interference on the Stroop task, and this was not accounted for by severity of SI, concurrently assessed depressive affect, or baseline depression. CPT performance was not related to SI variability or intensity. Findings highlight the utility of EMA methods in characterizing patterned experiences of SI and suggest that attentional control deficits may contribute to these characteristic patterns.
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Affiliation(s)
- Sarah Herzog
- Department of Psychiatry, Columbia University Irving Medical Center, Columbia University, New York, NY, USA; Division of Molecular Imaging and Neuropathology, New York State Psychiatric Institute, New York, NY, USA.
| | - John G Keilp
- Department of Psychiatry, Columbia University Irving Medical Center, Columbia University, New York, NY, USA; Division of Molecular Imaging and Neuropathology, New York State Psychiatric Institute, New York, NY, USA
| | - Hanga Galfalvy
- Department of Psychiatry, Columbia University Irving Medical Center, Columbia University, New York, NY, USA; Division of Molecular Imaging and Neuropathology, New York State Psychiatric Institute, New York, NY, USA
| | - J John Mann
- Department of Psychiatry, Columbia University Irving Medical Center, Columbia University, New York, NY, USA; Division of Molecular Imaging and Neuropathology, New York State Psychiatric Institute, New York, NY, USA
| | - Barbara H Stanley
- Department of Psychiatry, Columbia University Irving Medical Center, Columbia University, New York, NY, USA; Division of Molecular Imaging and Neuropathology, New York State Psychiatric Institute, New York, NY, USA
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Schneck N, Herzog S, Lu J, Yttredahl A, Ogden RT, Galfalvy H, Burke A, Stanley B, Mann JJ, Ochsner KN. The Temporal Dynamics of Emotion Regulation in Subjects With Major Depression and Healthy Control Subjects. Biol Psychiatry 2023; 93:260-267. [PMID: 36567086 DOI: 10.1016/j.biopsych.2022.09.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Revised: 07/28/2022] [Accepted: 09/01/2022] [Indexed: 12/27/2022]
Abstract
BACKGROUND Emotion regulation (ER) processes help support well-being, but ineffective ER is implicated in several psychiatric disorders. Engaging ER flexibly by going online and offline as needs and capacities shift may be more effective than engaging ER rigidly across time. Here, we sought to observe the neural temporal dynamics of an ER process, reappraisal, during regulation of responses to negative memories in healthy control subjects (n = 33) and subjects with major depressive disorder (n = 36). METHODS To track the temporal dynamics of reappraisal neural systems, we used a functional magnetic resonance imaging neural decoding approach. In task 1, subjects explicitly engaged reappraisal on instruction in response to aversive images, and we used this task to develop the decoder for detecting reappraisal. In task 2, subjects experienced negative autobiographical memories from a distant (third person, ER condition) or immersed (first person, control condition) perspective. RESULTS The neural decoder, trained to detect reappraisal in task 1, predicted greater reappraisal occurring during the task 2 distance versus immerse trials and was engaged more intensely during memories that were rated as being more negative. Across time, decoder output manifested a temporal dynamic of early engagement followed by disengagement. These results were replicated in an independent subject dataset (n = 59). Relative to healthy control subjects, subjects with major depressive disorder had a comparable initial increase in decoder engagement at the beginning of the trial but an attenuated decrease at the end. CONCLUSIONS Subjects with major depressive disorder evidenced a more rigid neural dynamic of reappraisal compared with healthy control subjects. Rigid ER may indicate diminished ability to flexibly and effectively regulate emotion.
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Affiliation(s)
- Noam Schneck
- Department of Psychiatry, Vagelos College of Physicians and Surgeons, Columbia University, New York, New York; Molecular Imaging and Neuropathology Division, The New York State Psychiatric Institute, New York, New York.
| | - Sarah Herzog
- Department of Psychiatry, Vagelos College of Physicians and Surgeons, Columbia University, New York, New York; Molecular Imaging and Neuropathology Division, The New York State Psychiatric Institute, New York, New York
| | - Jun Lu
- Division of Epidemiology and Biostatistics, School of Public Health, University of Illinois at Chicago, Chicago, Illinois
| | - Ashley Yttredahl
- Department of Psychiatry, Vagelos College of Physicians and Surgeons, Columbia University, New York, New York; Molecular Imaging and Neuropathology Division, The New York State Psychiatric Institute, New York, New York
| | - R Todd Ogden
- Department of Psychiatry, Vagelos College of Physicians and Surgeons, Columbia University, New York, New York; Department of Biostatistics, Mailman School of Public Health, Columbia University, New York, New York; Molecular Imaging and Neuropathology Division, The New York State Psychiatric Institute, New York, New York
| | - Hanga Galfalvy
- Department of Psychiatry, Vagelos College of Physicians and Surgeons, Columbia University, New York, New York; Department of Biostatistics, Mailman School of Public Health, Columbia University, New York, New York
| | - Ainsley Burke
- Department of Psychiatry, Vagelos College of Physicians and Surgeons, Columbia University, New York, New York; Molecular Imaging and Neuropathology Division, The New York State Psychiatric Institute, New York, New York
| | - Barbara Stanley
- Department of Psychiatry, Vagelos College of Physicians and Surgeons, Columbia University, New York, New York; Molecular Imaging and Neuropathology Division, The New York State Psychiatric Institute, New York, New York
| | - J John Mann
- Department of Psychiatry, Vagelos College of Physicians and Surgeons, Columbia University, New York, New York; Molecular Imaging and Neuropathology Division, The New York State Psychiatric Institute, New York, New York
| | - Kevin N Ochsner
- Department of Psychology, Columbia University, New York, New York
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Stenger R, Herzog S, Kottlarz I, Rüchardt B, Luther S, Wörgötter F, Parlitz U. Reconstructing in-depth activity for chaotic 3D spatiotemporal excitable media models based on surface data. Chaos 2023; 33:013134. [PMID: 36725654 DOI: 10.1063/5.0126824] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2022] [Accepted: 12/22/2022] [Indexed: 06/18/2023]
Abstract
Motivated by potential applications in cardiac research, we consider the task of reconstructing the dynamics within a spatiotemporal chaotic 3D excitable medium from partial observations at the surface. Three artificial neural network methods (a spatiotemporal convolutional long-short-term-memory, an autoencoder, and a diffusion model based on the U-Net architecture) are trained to predict the dynamics in deeper layers of a cube from observational data at the surface using data generated by the Barkley model on a 3D domain. The results show that despite the high-dimensional chaotic dynamics of this system, such cross-prediction is possible, but non-trivial and as expected, its quality decreases with increasing prediction depth.
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Affiliation(s)
- R Stenger
- Max Planck Institute for Dynamics and Self-Organization, Am Fassberg 17, 37077 Göttingen, Germany
| | - S Herzog
- Max Planck Institute for Dynamics and Self-Organization, Am Fassberg 17, 37077 Göttingen, Germany
| | - I Kottlarz
- Max Planck Institute for Dynamics and Self-Organization, Am Fassberg 17, 37077 Göttingen, Germany
| | - B Rüchardt
- Max Planck Institute for Dynamics and Self-Organization, Am Fassberg 17, 37077 Göttingen, Germany
| | - S Luther
- Max Planck Institute for Dynamics and Self-Organization, Am Fassberg 17, 37077 Göttingen, Germany
| | - F Wörgötter
- Department for Computational Neuroscience, Third Institute of Physics-Biophysics, University of Göttingen, 37077 Göttingen, Germany
| | - U Parlitz
- Max Planck Institute for Dynamics and Self-Organization, Am Fassberg 17, 37077 Göttingen, Germany
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Nichter B, Na PJ, Stanley IH, Marx BP, Herzog S, Moynahan V, Hill ML, Norman SB, Pietrzak RH. Identifying factors associated with elevated suicidal intent among U.S. military veterans. J Psychiatr Res 2022; 155:68-74. [PMID: 35988305 DOI: 10.1016/j.jpsychires.2022.08.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Revised: 06/30/2022] [Accepted: 08/03/2022] [Indexed: 10/31/2022]
Abstract
OBJECTIVE Suicidal intent is a risk factor for engagement in suicidal behavior, use of violent means, and suicide mortality. Yet, scarce research has examined factors associated with suicidal intent among U.S. military veterans, a population at high risk for suicide. This study examined vulnerability factors associated with suicidal intent in a population-based sample of U.S. veterans. METHODS Data were analyzed from the 2019-2020 National Health and Resilience in Veterans Study, which surveyed a representative sample of 4069 U.S. veterans. Analyses estimated the prevalence of current suicidal intent (i.e., veterans' report that they would likely attempt suicide in the future) and examined factors most strongly associated with suicidal intent. RESULTS Forty-nine veterans (1.4%; 95% confidence interval = 1.0-1.8%) reported suicidal intent. Recurrent past-year suicidal ideation (≥2 times), low dispositional gratitude, current depression, current insomnia, childhood sexual abuse, and a prior suicide attempt were most strongly associated with suicidal intent (7.1-50.1% of the total explained variance). Veterans with several of these co-occurring factors were at highest risk for suicidal intent; of veterans with 0, ≥1, ≥2, ≥3, and ≥4 of these factors, 0.1%, 4.4%, 10.8%, 19.5%, and 28.1% reported suicidal intent, respectively. DISCUSSION Specific vulnerability factors, particularly when co-occurring, may increase veterans' intention of attempting suicide. Findings underscore the importance for clinicians to continuously assess suicidal intent when working with this population, particularly as veterans' reports of suicidal thinking increases.
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Affiliation(s)
- Brandon Nichter
- Department of Psychiatry, Yale School of Medicine, New Haven, CT, USA.
| | - Peter J Na
- Department of Psychiatry, Yale School of Medicine, New Haven, CT, USA; National Center for PTSD, VA Connecticut Healthcare System, West Haven, CT, USA
| | - Ian H Stanley
- National Center for PTSD, VA Boston Healthcare System, Boston, MA, USA; Department of Psychiatry, Boston University School of Medicine, Boston, MA, USA
| | - Brian P Marx
- National Center for PTSD, VA Boston Healthcare System, Boston, MA, USA; Department of Psychiatry, Boston University School of Medicine, Boston, MA, USA
| | - Sarah Herzog
- Department of Psychiatry, Columbia University Irving Medical Center, Columbia University, New York, NY, USA; Division of Molecular Imaging and Neuropathology, New York State Psychiatric Institute, New York, NY, USA
| | | | - Melanie L Hill
- Department of Psychiatry, University of California San Diego, La Jolla, CA, USA; VA San Diego Healthcare System, San Diego, CA, USA
| | - Sonya B Norman
- Department of Psychiatry, University of California San Diego, La Jolla, CA, USA; National Center for PTSD, White River Junction, VT, USA; VA Center of Excellence for Stress and Mental Health, San Diego, CA, USA
| | - Robert H Pietrzak
- National Center for PTSD, VA Connecticut Healthcare System, West Haven, CT, USA; Social and Behavioral Sciences, Yale School of Public Health, New Haven, CT, USA
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Abstract
Clinical and empirical reports suggest that individuals use non-suicidal self-injury (NSSI) not only to ameliorate dysphoria, but to curb suicidal ideation or avoid suicidal behaviour. To date, however, no study has quantitatively assessed whether NSSI leads to short-term reductions in suicidal ideation. Using real-time monitoring over 7 days in a sample with borderline personality disorder, we found evidence that NSSI is followed by reductions in suicidal ideation in the subsequent hours. This suggests that NSSI may serve as an effective, albeit maladaptive, coping strategy for suicidal states. These findings have important implications for the management of suicide risk and self-harm.
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Affiliation(s)
- Sarah Herzog
- Department of Psychiatry, Columbia University, New York, NY, USA,Corresponding Author: Sarah Herzog, Ph.D.; 1051 Riverside Dr., Unit 42, New York, NY 10032; ; Tel: 646-774-7518
| | - Tse-Hwei Choo
- Molecular Imaging and Neuropathology Division, New York State Psychiatric Institute, New York, NY, USA
| | - Hanga Galfalvy
- Department of Psychiatry, Columbia University, New York, NY, USA,Molecular Imaging and Neuropathology Division, New York State Psychiatric Institute, New York, NY, USA
| | - J. John Mann
- Department of Psychiatry, Columbia University, New York, NY, USA,Molecular Imaging and Neuropathology Division, New York State Psychiatric Institute, New York, NY, USA
| | - Barbara Stanley
- Department of Psychiatry, Columbia University, New York, NY, USA,Molecular Imaging and Neuropathology Division, New York State Psychiatric Institute, New York, NY, USA
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Hill ML, Loflin M, Nichter B, Na PJ, Herzog S, Norman SB, Pietrzak RH. Cannabis use among U.S. military veterans with subthreshold or threshold posttraumatic stress disorder: Psychiatric comorbidities, functioning, and strategies for coping with posttraumatic stress symptoms. J Trauma Stress 2022; 35:1154-1166. [PMID: 35275431 DOI: 10.1002/jts.22823] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Revised: 12/27/2021] [Accepted: 01/19/2022] [Indexed: 11/07/2022]
Abstract
Cannabis use is common among individuals with posttraumatic stress disorder (PTSD) symptoms, but its impact on psychiatric symptoms and functioning in this population is unclear. To clarify the clinical and functional correlates of cannabis use in individuals with PTSD symptoms, we analyzed data from the 2019-2020 National Health and Resilience in Veterans Study, a nationally representative survey of U.S. military veterans. Participants with current subthreshold or full PTSD (N = 608) reported on their past-6-month cannabis use and current psychiatric symptoms, functioning, treatment utilization, and PTSD symptom management strategies. Veterans with subthreshold/full PTSD who used cannabis more than weekly were more likely to screen positive for co-occurring depression, anxiety, and suicidal ideation than those who did not use cannabis, ORs = 3.4-3.8, or used cannabis less than weekly, ORs = 2.7-3.7. Veterans who used cannabis more than weekly also scored lower in cognitive functioning than veterans with no use, d = 0.25, or infrequent use, d = 0.71, and were substantially more likely to endorse avoidance coping strategies, ORs = 8.2-12.2, including substance use, OR = 4.4, and behavioral disengagement, ORs = 2.7-9.1, to manage PTSD symptoms. Despite more psychiatric and functional problems, veterans with frequent cannabis use were not more likely to engage in mental health treatment, ORs = 0.87-0.99. The results suggest enhanced cannabis use screening, interventions targeting risky use, and strategies promoting treatment engagement may help ameliorate more severe clinical presentations associated with frequent cannabis use among veterans with subthreshold/full PTSD.
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Affiliation(s)
- Melanie L Hill
- Department of Psychiatry, University of California, San Diego, California, USA.,VA San Diego Healthcare System, San Diego, California, USA
| | - Mallory Loflin
- Department of Psychiatry, University of California, San Diego, California, USA
| | - Brandon Nichter
- Department of Psychiatry, University of California, San Diego, California, USA
| | - Peter J Na
- Department of Psychiatry, Yale School of Medicine, New Haven, Connecticut, USA.,VA Connecticut Healthcare System, West Haven, Connecticut, USA
| | - Sarah Herzog
- Department of Psychiatry, Columbia University Irving Medical Center, Columbia University, New York, New York, USA.,Division of Molecular Imaging and Neuropathology, New York State Psychiatric Institute, New York, New York, USA
| | - Sonya B Norman
- Department of Psychiatry, University of California, San Diego, California, USA.,VA San Diego Healthcare System, San Diego, California, USA.,National Center for PTSD, White River Junction, Vermont, USA.,VA Center of Excellence for Stress and Mental Health, San Diego, California, USA
| | - Robert H Pietrzak
- Department of Psychiatry, Yale School of Medicine, New Haven, Connecticut, USA.,National Center for PTSD, VA Connecticut Healthcare System, West Haven, Connecticut, USA.,Department of Social and Behavioral Sciences, Yale School of Public Health, New Haven, Connecticut, USA
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Herzog S, Nichter B, Hill ML, Na PJ, Norman SB, Pietrzak RH. Factors Associated With Remission of Suicidal Ideation During the COVID-19 Pandemic: A Population-Based, Longitudinal Study in US Military Veterans. J Clin Psychiatry 2022; 83. [PMID: 35771973 DOI: 10.4088/jcp.21br14341] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- Sarah Herzog
- Department of Psychiatry, Columbia University Irving Medical Center, Columbia University, New York, New York.,Division of Molecular Imaging and Neuropathology, New York State Psychiatric Institute, New York, New York.,Corresponding author: Sarah Herzog, PhD, 1051 Riverside Dr, Unit 42, New York, NY 10032
| | - Brandon Nichter
- Department of Psychiatry, Yale School of Medicine, New Haven, Connecticut
| | - Melanie L Hill
- Department of Psychiatry, University of California, San Diego, La Jolla, California.,VA San Diego Healthcare System, San Diego, California
| | - Peter J Na
- Department of Psychiatry, Yale School of Medicine, New Haven, Connecticut.,Psychiatry Service, VA Connecticut Healthcare System, West Haven, Connecticut
| | - Sonya B Norman
- Department of Psychiatry, University of California, San Diego, La Jolla, California.,National Center for PTSD, White River Junction, Vermont.,VA Center of Excellence for Stress and Mental Health, San Diego, California
| | - Robert H Pietrzak
- Department of Psychiatry, Yale School of Medicine, New Haven, Connecticut.,US Department of Veterans Affairs National Center for Posttraumatic Stress Disorder, VA Connecticut Healthcare System, West Haven, Connecticut.,Department of Social and Behavioral Sciences, Yale School of Public Health, New Haven, Connecticut
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Herzog S, Nichter B, Hill ML, Norman SB, Pietrzak RH. Factors associated with remission of suicidal thoughts and behaviors in U.S. military veterans with a history of suicide attempt. J Psychiatr Res 2022; 149:62-67. [PMID: 35247722 DOI: 10.1016/j.jpsychires.2022.02.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Revised: 02/17/2022] [Accepted: 02/28/2022] [Indexed: 11/25/2022]
Abstract
Suicide is a major public health problem in U.S. military veterans, but little is known about factors associated with remission from suicide attempts in this population. We aimed to identify risk and protective correlates of remission from suicidal thoughts and behavior (STB) in U.S. veterans with a prior suicide attempt. Data were analyzed from the 2019-2020 National Health and Resilience in Veterans Study survey. A broad range of sociodemographic, military, physical and mental health, and psychosocial variable were assessed. Purpose in life, dispositional gratitude, and conscientiousness emerged as independent correlates of STB remission (24.3%-40.3% of explained variance), even after accounting for other relevant risk and protective factors. While the cross-sectional nature of the study precludes the ability to determine whether the identified protective factors are causally related to STB remission, results suggest three potentially modifiable targets for suicide prevention efforts in veterans. Longitudinal studies are needed to better understand the role of purpose in life, dispositional gratitude, and conscientiousness in promoting remission from STBs in veterans and other populations at risk for suicide.
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Affiliation(s)
- Sarah Herzog
- Department of Psychiatry, Columbia University Irving Medical Center, Columbia University, New York, NY, USA; Division of Molecular Imaging and Neuropathology, New York State Psychiatric Institute, New York, NY, USA.
| | - Brandon Nichter
- Department of Psychiatry, Yale School of Medicine, New Haven, CT, USA
| | - Melanie L Hill
- Department of Psychiatry, University of California San Diego, La Jolla, CA, USA; VA San Diego Healthcare System, San Diego, CA, USA
| | - Sonya B Norman
- Department of Psychiatry, University of California San Diego, La Jolla, CA, USA; National Center for PTSD, White River Junction, VT, USA; VA Center of Excellence for Stress and Mental Health, San Diego, CA, USA
| | - Robert H Pietrzak
- Department of Psychiatry, Yale School of Medicine, New Haven, CT, USA; U.S. Department of Veterans Affairs National Center for Posttraumatic Stress Disorder, VA Connecticut Healthcare System, West Haven, CT, USA; Department of Social and Behavioral Sciences, Yale School of Public Health, New Haven, CT, USA
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Nichter B, Stein MB, Monteith LL, Herzog S, Holliday R, Hill ML, Norman SB, Krystal JH, Pietrzak RH. Risk factors for suicide attempts among U.S. military veterans: A 7-year population-based, longitudinal cohort study. Suicide Life Threat Behav 2022; 52:303-316. [PMID: 34873738 DOI: 10.1111/sltb.12822] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Revised: 08/31/2021] [Accepted: 08/31/2021] [Indexed: 12/29/2022]
Abstract
BACKGROUND Population-based data on risk factors for suicide attempts among veterans remains limited. METHODS A national probability sample of 2307 veterans was followed over the course of four timepoints spanning seven years to examine how a range of baseline risk factors predict incident suicide attempt. Suicide attempt data were aggregated into a single follow-up timepoint. RESULTS Sixty-two veterans (3.1%) reported attempting suicide during the 7-year period. The strongest risk factors for suicide attempts were higher baseline levels of loneliness, lower baseline levels of adaptive psychosocial traits (e.g., dispositional gratitude), baseline thoughts of self-harm, and greater post-baseline trauma exposures (12.3%-41.3% of explained variance). Veterans with multiple co-occurring risk factors were at greatest risk for attempts; of veterans with 0, 1, 2, 3, and all 4 of these factors, the predicted probability of suicide attempt was 2.0%, 5.3%, 13.5%, 30.4%, and 55.0%, respectively. CONCLUSIONS Baseline loneliness, dispositional gratitude, thoughts of self-harm, and new-onset traumas emerged as the strongest risk factors for suicide attempts among veterans, underscoring the potential importance of targeting these factors in prevention efforts. Veterans with multiple co-occurring risk factors have substantially greater risk for suicide attempts, suggesting that examination of multiple coinciding vulnerability factors may help improve suicide risk prediction models.
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Affiliation(s)
- Brandon Nichter
- Department of Psychiatry, University of California San Diego, La Jolla, California, USA
| | - Murray B Stein
- Department of Psychiatry, University of California San Diego, La Jolla, California, USA.,VA San Diego Healthcare System, San Diego, California, USA
| | - Lindsey L Monteith
- VA Rocky Mountain Mental Illness Research, Education, and Clinical Center for Veteran Suicide Prevention, Aurora, Colorado, USA.,Department of Psychiatry, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Sarah Herzog
- Columbia University Irving Medical Center, Columbia University, New York, New York, USA.,Division of Molecular Imaging and Neuropathology, New York State Psychiatric Institute, New York, New York, USA
| | - Ryan Holliday
- VA Rocky Mountain Mental Illness Research, Education, and Clinical Center for Veteran Suicide Prevention, Aurora, Colorado, USA.,Department of Psychiatry, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Melanie L Hill
- Department of Psychiatry, University of California San Diego, La Jolla, California, USA.,VA San Diego Healthcare System, San Diego, California, USA
| | - Sonya B Norman
- Department of Psychiatry, University of California San Diego, La Jolla, California, USA.,VA Center of Excellence for Stress and Mental Health, San Diego, California, USA.,National Center for PTSD, White River Junction, Vermont, USA
| | - John H Krystal
- National Center for PTSD, VA Connecticut Healthcare System, West Haven, Connecticut, USA.,Department of Psychiatry, Yale School of Medicine, New Haven, Connecticut, USA
| | - Robert H Pietrzak
- National Center for PTSD, VA Connecticut Healthcare System, West Haven, Connecticut, USA.,Department of Psychiatry, Yale School of Medicine, New Haven, Connecticut, USA.,Department of Social and Behavioral Sciences, Yale School of Public Health, New Haven, Connecticut, USA
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Kachadourian LK, Nichter B, Herzog S, Norman SB, Sullivan T, Pietrzak RH. Non-suicidal self-injury in US military veterans: Results from the National Health and Resilience in Veterans Study. Clin Psychol Psychother 2021; 29:941-949. [PMID: 34599541 DOI: 10.1002/cpp.2673] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Revised: 09/26/2021] [Accepted: 09/27/2021] [Indexed: 01/16/2023]
Abstract
BACKGROUND To evaluate the prevalence of lifetime non-suicidal self-injury (NSSI) among US military veterans and identify sociodemographic, military, psychiatric and clinical correlates associated with NSSI. METHODS Data were analysed from the 2019-2020 National Health and Resilience in Veterans Study, a contemporary, nationally representative survey of 4069 US veterans. Outcomes measured included lifetime history of NSSI, trauma history, lifetime and current DSM-V mental disorders and lifetime and recent suicidal behaviours. RESULTS The overall prevalence of lifetime NSSI was 4.2% (95% confidence interval [3.6%, 4.9%]). Multivariable analyses revealed that veterans who endorsed lifetime NSSI were more likely to be younger, female, non-Caucasian, unmarried or unpartnered, and to have a lower annual household income. Veterans who endorsed lifetime NSSI reported more adverse childhood experiences and lifetime traumas and were more likely to have experienced military sexual trauma. They also were more likely to screen positive for lifetime posttraumatic stress disorder, major depressive disorder (MDD) and substance use disorders and to have attempted suicide. Finally, lifetime NSSI was associated with current MDD, generalized anxiety disorder, and substance use disorders, as well as past-year suicidal ideation. CONCLUSION Results of this study provide the first-known data on the epidemiology of NSSI in US military veterans. They suggest that certain correlates can help identify veterans who may be at greater risk for engaging in NSSI, as well as the potential prognostic utility of lifetime NSSI in predicting current psychiatric problems and suicide risk in this population.
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Affiliation(s)
- Lorig K Kachadourian
- United States Department of Veterans Affairs National Center for PTSD, West Haven, Connecticut, USA
- VA Connecticut Healthcare System, West Haven, Connecticut, USA
- Department of Psychiatry, Yale University School of Medicine, New Haven, Connecticut, USA
| | - Brandon Nichter
- Department of Psychiatry, University of California San Diego, La Jolla, California, USA
| | - Sarah Herzog
- Department of Psychiatry, Irving Medical Center, Columbia University, New York, New York, USA
| | - Sonya B Norman
- United States Department of Veterans Affairs National Center for PTSD, West Haven, Connecticut, USA
- VA Sand Diego Healthcare System, San Diego, California, USA
- School of Medicine, University of California, San Diego, San Diego, California, USA
| | - Tami Sullivan
- Department of Psychiatry, Yale University School of Medicine, New Haven, Connecticut, USA
| | - Robert H Pietrzak
- United States Department of Veterans Affairs National Center for PTSD, West Haven, Connecticut, USA
- VA Connecticut Healthcare System, West Haven, Connecticut, USA
- Department of Psychiatry, Yale University School of Medicine, New Haven, Connecticut, USA
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13
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Nichter B, Monteith LL, Norman SB, Maguen S, Hill ML, Herzog S, Pietrzak RH. Differentiating U.S. military veterans who think about suicide from those who attempt suicide: A population-based study. Gen Hosp Psychiatry 2021; 72:117-123. [PMID: 34450447 DOI: 10.1016/j.genhosppsych.2021.08.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Revised: 08/03/2021] [Accepted: 08/12/2021] [Indexed: 11/17/2022]
Abstract
OBJECTIVE Several vulnerability factors for suicidal behavior in U.S. veterans have been identified. However, little is known about factors that differentiate veterans who contemplate suicide from those who attempt suicide. This study examined sociodemographic and clinical characteristics that distinguish veterans who think about suicide from those who attempt suicide. METHOD Data were analyzed from the 2019-2020 National Health and Resilience in Veterans Study, which surveyed a population-based sample of 4069 veterans. Analyses estimated the lifetime prevalence of suicide ideation (SI) and suicide attempts (SA); and examined differences between veterans with a history of attempt(s), and SI without a history of attempt(s). RESULTS A total 25.9% of U.S. veterans reported lifetime SI and 3.9% reported a SA. Several factors distinguished veterans with a history of SA from those with SI only: the strongest were younger age (odds ratio [OR] = 0.97, 95% CI = 0.95-0.98), nonsuicidal self-injury (OR = 1.81, 95% CI = 1.11-3.03), adverse childhood experiences (OR = 1.14; 95% CI = 1.06-1.23), alcohol use disorder (OR = 1.99; 95% CI = 1.28-3.12), lower household income (OR = 0.62; 95% CI = 0.40-0.95), and physical disability (OR = 1.69; 95% CI = 1.07-2.70). CONCLUSIONS Although a quarter of U.S. veterans contemplate suicide in their lifetimes, the majority do not attempt suicide. Specific sociodemographic and clinical features may differentiate veterans who contemplate versus attempt suicide.
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Affiliation(s)
- Brandon Nichter
- Department of Psychiatry, University of California San Diego, La Jolla, CA, USA.
| | - Lindsey L Monteith
- VA Rocky Mountain Mental Illness Research, Education, and Clinical Center for Veteran Suicide Prevention, Aurora, CO, USA; Department of Psychiatry, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Sonya B Norman
- Department of Psychiatry, University of California San Diego, La Jolla, CA, USA; National Center for PTSD, White River Junction, VT, USA; VA Center of Excellence for Stress and Mental Health, San Diego, CA, USA
| | - Shira Maguen
- San Francisco VA Health Care System, San Francisco, CA, USA; University of California - San Francisco, San Francisco, USA
| | - Melanie L Hill
- Department of Psychiatry, University of California San Diego, La Jolla, CA, USA; VA San Diego Healthcare System, San Diego, CA, USA
| | - Sarah Herzog
- Department of Psychiatry, Columbia University, Irving Medical Center, New York, NY, USA; Division of Molecular Imaging and Neuropathology, New York State Psychiatric Institute, New York, NY, USA
| | - Robert H Pietrzak
- National Center for PTSD, VA Connecticut Healthcare System, West Haven, CT, USA; Department of Psychiatry, Yale University School of Medicine, New Haven, CT, USA
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Nichter B, Maguen S, Monteith LL, Kachadourian L, Norman SB, Hill ML, Herzog S, Pietrzak RH. Factors associated with multiple suicide attempts in a nationally representative study of U.S. military veterans. J Psychiatr Res 2021; 140:295-300. [PMID: 34126423 DOI: 10.1016/j.jpsychires.2021.06.012] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Revised: 05/28/2021] [Accepted: 06/04/2021] [Indexed: 11/28/2022]
Abstract
OBJECTIVE Veterans with a history of multiple suicide attempts are at increased risk for suicide mortality relative to those with a single attempt. However, little is known about factors that differentiate veterans who attempt suicide once compared to more than once. This study examined factors that distinguish single suicide attempters (SSA) from multiple suicide attempters (MSA) in a nationally representative sample of U.S. military veterans. METHODS Data were analyzed from the 2019-2020 National Health and Resilience in Veterans Study, which surveyed a representative sample of 4069 U.S. veterans. ANALYSES (a) estimated the lifetime prevalence of SSA and MSA; and (b) examined factors that differentiated veterans with a SSA from MSA. RESULTS The lifetime prevalences of SSA and MSA were 1.9% and 2.0%. The strongest correlates of MSA were history of lifetime depression (odds ratio [OR], 2.45; 95% confidence interval [CI], 1.43-8.35), non-suicidal self-injury (OR, 3.28; 95% CI, 1.27-8.45), drug use disorder (OR, 4.0; 95% CI, 1.67-9.54), and marital status (OR, 0.40, 95% CI, 0.18-0.87), which accounted for 15.5%-41.4% of the total explained variance in MSA. DISCUSSION Half of military veterans who have attempted suicide in the United States report more than one attempt, suggesting that suicide attempts are not a one-time occurrence for a substantial proportion of veterans. Veterans who attempt suicide more than once show more deliberate self-harm behavior and have greater psychiatric comorbidities relative to single attempters. Implications for future research examining risk factors for suicide attempts among veterans are discussed.
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Affiliation(s)
- Brandon Nichter
- Department of Psychiatry, University of California Sn Diego, La Jolla, CA, USA.
| | - Shira Maguen
- San Francisco VA Health Care System, San Francisco, CA, USA; University of California - San Francisco, San Francisco, USA
| | - Lindsey L Monteith
- VA Rocky Mountain Mental Illness Research, Education and Clinical Center for Veteran Suicide Prevention, Aurora, CO, USA; Department of Psychiatry, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Lorig Kachadourian
- National Center for PTSD, VA Connecticut Healthcare System, West Haven, CT, USA; Yale School of Medicine, New Haven, CT, USA
| | - Sonya B Norman
- Department of Psychiatry, University of California Sn Diego, La Jolla, CA, USA; National Center for PTSD, White River Junction, VT, USA; VA Center of Excellence for Stress and Mental Health, San Diego, CA, USA
| | - Melanie L Hill
- Department of Psychiatry, University of California Sn Diego, La Jolla, CA, USA; VA San Diego Healthcare System, San Diego, CA, USA
| | - Sarah Herzog
- Department of Psychiatry, Columbia University Irving Medical Center, Columbia University, New York, NY, USA; Division of Molecular Imaging and Neuropathology, New York State Psychiatric Institute, New York, NY, USA
| | - Robert H Pietrzak
- Division of Molecular Imaging and Neuropathology, New York State Psychiatric Institute, New York, NY, USA; Social and Behavioral Sciences, Yale School of Public Health, New Haven, CT, USA
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Abstract
Purpose of Review Suicide is a major public health concern and a leading cause of death in the US. Alcohol and opioid use disorders (AUD/OUD) significantly increase risk for suicidal ideation, attempts, and death, and are the two most frequently implicated substances in suicide risk. We provide a brief overview of shared risk factors and pathways in the pathogenesis of AUD/OUD and suicidal thoughts and behaviors. We also review clinical recommendations on inpatient care, pharmacotherapy, and psychotherapeutic interventions for people with AUD/OUD and co-occurring suicidal ideation and behavior. Recent Findings Among people with an underlying vulnerability to risk-taking and impulsive behaviors, chronic alcohol intoxication can increase maladaptive coping behaviors and hinder self-regulation, thereby increasing the risk of suicide. Additionally, chronic opioid use can result in neurobiological changes that lead to increases in negative affective states, jointly contributing to suicide risk and continued opioid use. Despite significantly elevated suicide risk in individuals with AUD/OUD, there is a dearth of research on pharmacological and psychosocial interventions for co-occurring AUD/OUD and suicidal ideation and behavior. Summary Further research is needed to understand the effects of alcohol and opioid use on suicide risk, as well as address notable gaps in the literature on psychosocial and pharmacological interventions to lower risk for suicide among individuals with AUD/OUD.
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Affiliation(s)
- Mina M. Rizk
- Department of Psychiatry, Columbia University Irving Medical Center, Columbia University, New York, NY USA
- Division of Molecular Imaging and Neuropathology, New York State Psychiatric Institute, 1051 Riverside Dr., Unit 42, New York, NY 10032 USA
- Department of Psychiatry, Faculty of Medicine, Minia University, Egypt, Egypt
| | - Sarah Herzog
- Department of Psychiatry, Columbia University Irving Medical Center, Columbia University, New York, NY USA
- Division of Molecular Imaging and Neuropathology, New York State Psychiatric Institute, 1051 Riverside Dr., Unit 42, New York, NY 10032 USA
| | - Sanjana Dugad
- Division of Molecular Imaging and Neuropathology, New York State Psychiatric Institute, 1051 Riverside Dr., Unit 42, New York, NY 10032 USA
- Department of Psychiatry and Behavioral Sciences, Memorial Sloan Kettering Cancer Center, New York, NY USA
| | - Barbara Stanley
- Department of Psychiatry, Columbia University Irving Medical Center, Columbia University, New York, NY USA
- Division of Molecular Imaging and Neuropathology, New York State Psychiatric Institute, 1051 Riverside Dr., Unit 42, New York, NY 10032 USA
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Herzog S, Tsai J, Nichter B, Kachadourian L, Harpaz-Rotem I, Pietrzak RH. Longitudinal courses of suicidal ideation in U.S. military veterans: a 7-year population-based, prospective cohort study. Psychol Med 2021; 52:1-10. [PMID: 33602367 DOI: 10.1017/s0033291721000301] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
BACKGROUND Varied longitudinal courses of suicidal ideation (SI) may be linked to unique sets of risk and protective factors. METHOD A national probability sample of 2291 U.S. veterans was followed over four assessments spanning 7 years to examine how a broad range of baseline risk and protective factors predict varying courses of SI. RESULTS Most veterans (82.6%) denied SI at baseline and all follow-ups, while 8.7% had new onset SI, 5.4% chronic SI, and 3.3% remitted SI. Compared to the no-SI group, chronic SI was associated with childhood trauma, baseline major depressive and/or posttraumatic stress disorder (MDD/PTSD), physical health difficulties, and recent traumatic stressors. Remitted veterans had the highest risk of a prior suicide attempt (SA) compared to no-SI [relative risk ratio (RRR) = 3.31] and chronic SI groups (RRR = 4.65); and high rates of MDD/PTSD (RRR = 7.62). New onset SI was associated with recent stressors and physical health difficulties. All symptomatic SI groups reported decrements in protective factors, specifically, social connectedness, trait curiosity/exploration, and purpose in life. CONCLUSION Nearly one-in-five veterans reported SI over a 7-year period, most of whom evidenced new onset or remitted SI courses. Chronic and remitted SI may represent particularly high-risk SI courses; the former was associated with higher rates of prospective SA, and psychiatric and physical distress, and the latter with increased likelihood of prior SA, and isolation from social and mental health supports. Physical disability, MDD/PTSD, and recent stressors may be important precipitating or maintaining factors of SI, while social connectedness may be a key target for suicide prevention efforts.
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Affiliation(s)
- Sarah Herzog
- Department of Psychiatry, Columbia University Irving Medical Center, Columbia University, New York, NY, USA
- Division of Molecular Imaging and Neuropathology, New York State Psychiatric Institute, New York, NY, USA
| | - Jack Tsai
- VA National Center on Homelessness Among Veterans, Tampa, FL, USA
- School of Public Health, University of Texas Health Science Center at Houston, Houston, TX, USA
| | - Brandon Nichter
- Department of Psychiatry, University of California San Diego, La Jolla, CA, USA
| | - Lorig Kachadourian
- U.S. Department of Veterans Affairs National Center for Posttraumatic Stress Disorder, VA Connecticut Healthcare System, West Haven, CT, USA
- Department of Psychiatry, Yale School of Medicine, New Haven, CT, USA
| | - Ilan Harpaz-Rotem
- U.S. Department of Veterans Affairs National Center for Posttraumatic Stress Disorder, VA Connecticut Healthcare System, West Haven, CT, USA
- Department of Psychiatry, Yale School of Medicine, New Haven, CT, USA
| | - Robert H Pietrzak
- U.S. Department of Veterans Affairs National Center for Posttraumatic Stress Disorder, VA Connecticut Healthcare System, West Haven, CT, USA
- Department of Psychiatry, Yale School of Medicine, New Haven, CT, USA
- Department of Social and Behavioral Sciences, Yale School of Public Health, New Haven, CT, USA
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Fuqua S, Gonzalez TL, Gu G, Herzog S, Rechoum Y, Beyer A, Edwards D, Lin H, Paul BA, Kittler R, Weigel N, Grimm S, Coarfa C, Bawa-Khalfe T. Abstract PD8-09: Androgen and ESR1 mutant receptors mechanistically collaborate for overexpression of genes associated with poor outcomes in ER-positive metastatic breast cancer. Cancer Res 2021. [DOI: 10.1158/1538-7445.sabcs20-pd8-09] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: Recurrences are delayed for years with endocrine therapy (ET), but resistance ultimately evolves with the development of ER+ metastatic breast cancer (MBC). ESR1 mutations are acquired in MBC undergoing ET in about 20-40% of patients. We have previously demonstrated that AR overexpression confers resistance to both tamoxifen and aromatase inhibitor treatments. We discovered that AR protein is up-regulated in tumors expressing ESR1 mutations, and herein explore the functional consequences of AR-ESR1 mutant co-expression on metastatic progression of breast cancer. Objective: We hypothesize that ET resistance mechanisms driven by AR overexpression and acquisition of ESR1 mutations co-evolve under the selective pressure of therapy to drive distant metastasis. We investigated whether AR engages in novel genomic binding interactions with mutant ER to promote tumor progression. Methods: Expression profiling of CRISPR-Cas9 engineered cell lines was integrated with chromatin immunoprecipitation-sequencing (ChIP-Seq) to define the genomic distribution of ER and AR binding sites. Genomic distribution of AR-ER co-occupied binding sites from MBC patient tumors, and a gene expression signature associated with patient outcomes was generated using using Cox Regression analysis to calculate Hazard Ratios for recurrence free survival from gene expression in the KMPlotter Breast Cancer Dataset and signature validation by Kaplan Meier analysis in the ER+ METABRIC patient cohort. Results: AR protein was post-transcriptionally elevated in ESR1 mutant cells, including distant metastatic tumors from ESR1 mutant xengraft models. Transcriptome data showed significant elevation of Cancer Hallmark pathways, including epithelial-mesenchymal transition (EMT) and estrogen response, but down-regulation of androgen response genes. However, both ER and AR functions were constitutively activated, independent of their respective ligands in ESR1 mutant-expressing models. AR was disproportionally re-distributed to selected enhancer genomic regions, but also heterochromatin in ESR1 mutant compared to cells with WT ER in the presence of estrogen. In addition, AR-ER co-occupied sites were increased in enhancer regions in ESR1 mutant cells, and these sites best discriminated distal ER enhancer regions in non-responder patients and MBC. . The expression of genes co-bound by AR and ER were significantly associated with shorter recurrence-free and overall survival in ER+ breast cancer. Treatment with AR agonists blocked distant metastasis of ESR1 mutant PDX models in vivo, in part due to reduction in ER protein and ER binding to select genomic sites. Conclusions: Our results demonstrate that unliganded AR collaborates with ESR1 mutations to regulate genes associated with the metastasis of ER+ breast cancer. We hypothesize that in an ESR1 mutant genomic background, AR acquires ER co-activator functions that are blocked with AR agonists, suggesting a unique hormonal therapeutic vulnerability in tumors with ESR1 mutations.
Citation Format: Suzanne Fuqua, Thomas L Gonzalez, Guowei Gu, Sarah Herzog, Yassine Rechoum, Amanda Beyer, David Edwards, Hangqing Lin, BAsil Paul, Ralf Kittler, Nancy Weigel, Sandra Grimm, Cristian Coarfa, Tasneem Bawa-Khalfe. Androgen and ESR1 mutant receptors mechanistically collaborate for overexpression of genes associated with poor outcomes in ER-positive metastatic breast cancer [abstract]. In: Proceedings of the 2020 San Antonio Breast Cancer Virtual Symposium; 2020 Dec 8-11; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2021;81(4 Suppl):Abstract nr PD8-09.
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Affiliation(s)
| | | | - Guowei Gu
- 1Baylor College of Medicine, Houston, TX
| | | | | | | | | | | | - BAsil Paul
- 1Baylor College of Medicine, Houston, TX
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Herzog S, Fogle BM, Harpaz-Rotem I, Tsai J, DePierro J, Pietrzak RH. Dissociative symptoms predict risk for the development of PTSD: Results from the National Health and Resilience in Veterans Study (NHRVS). J Psychiatr Res 2020; 131:215-219. [PMID: 32998083 DOI: 10.1016/j.jpsychires.2020.09.018] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Revised: 09/15/2020] [Accepted: 09/17/2020] [Indexed: 10/23/2022]
Abstract
Dissociative symptoms following trauma exposure, such as derealization (i.e., feeling that one's experience is strange and unreal) and depersonalization (i.e., feeling detached from oneself) have been implicated in the development and maintenance of posttraumatic stress disorder (PTSD). In the current study, we analyzed data from a 3-year prospective cohort study of a nationally representative sample of U.S. veterans to examine whether trait dissociative symptoms, which may impair adaptive emotion regulation following trauma exposure, predict risk for the development of PTSD in trauma-exposed veterans. Results revealed that derealization symptoms predicted a nearly 5-fold increase in relative risk of incident PTSD (relative risk ratio = 4.57, 95% confidence interval = 1.55-13.52), even after adjusting for relevant sociodemographic and trauma-related factors, and severity of PTSD symptoms at baseline. To our knowledge, this study is the first to suggest that trait dissociative symptoms-specifically derealization-may be an important population-based risk factor for the development of PTSD in trauma-exposed U.S. military veterans. These findings add to a body of literature on the prediction of PTSD that largely focuses on stable or immutable risk factors such as sociodemographic and trauma characteristics, or peritraumatic emotional reactions, and underscores the potential clinical utility of assessing, monitoring, and treating derealization symptoms in trauma-exposed U.S. military veterans at risk for PTSD.
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Affiliation(s)
- Sarah Herzog
- U.S. Department of Veterans Affairs National Center for Posttraumatic Stress Disorder, VA Connecticut Healthcare System, 950 Campbell Avenue, West Haven, CT, 06516, USA.
| | - Brienna M Fogle
- Department of Psychiatry, Yale School of Medicine, 300 George St #901, New Haven, CT, 06511, USA
| | - Ilan Harpaz-Rotem
- U.S. Department of Veterans Affairs National Center for Posttraumatic Stress Disorder, VA Connecticut Healthcare System, 950 Campbell Avenue, West Haven, CT, 06516, USA; Department of Psychiatry, Yale School of Medicine, 300 George St #901, New Haven, CT, 06511, USA
| | - Jack Tsai
- Department of Psychiatry, Yale School of Medicine, 300 George St #901, New Haven, CT, 06511, USA; U.S. Department of Veterans Affairs National Center on Homelessness Among Veterans, 13000 Bruce B. Downs Blvd, Tampa, FL, 33612, USA
| | - Jonathan DePierro
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, 1 Gustave L. Levy Place, Box 1230, New York, NY, 10029, USA
| | - Robert H Pietrzak
- U.S. Department of Veterans Affairs National Center for Posttraumatic Stress Disorder, VA Connecticut Healthcare System, 950 Campbell Avenue, West Haven, CT, 06516, USA; Department of Psychiatry, Yale School of Medicine, 300 George St #901, New Haven, CT, 06511, USA; Department of Social and Behavioral Sciences, Yale School of Public Health, 60 College St, New Haven, CT, 06510, USA
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Herzog S, Wörgötter F, Parlitz U. Convolutional autoencoder and conditional random fields hybrid for predicting spatial-temporal chaos. Chaos 2019; 29:123116. [PMID: 31893655 DOI: 10.1063/1.5124926] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2019] [Accepted: 11/14/2019] [Indexed: 06/10/2023]
Abstract
We present an approach for data-driven prediction of high-dimensional chaotic time series generated by spatially-extended systems. The algorithm employs a convolutional autoencoder for dimension reduction and feature extraction combined with a probabilistic prediction scheme operating in the feature space, which consists of a conditional random field. The future evolution of the spatially-extended system is predicted using a feedback loop and iterated predictions. The excellent performance of this method is illustrated and evaluated using Lorenz-96 systems and Kuramoto-Sivashinsky equations of different size generating time series of different dimensionality and complexity.
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Affiliation(s)
- S Herzog
- Max Planck Institute for Dynamics and Self-Organization, Am Fassberg 17, 37077 Göttingen, Germany
| | - F Wörgötter
- Third Institute of Physics and Bernstein Center for Computational Neuroscience, University of Göttingen, Friedrich-Hund-Platz 1, 37077 Göttingen, Germany
| | - U Parlitz
- Max Planck Institute for Dynamics and Self-Organization, Am Fassberg 17, 37077 Göttingen, Germany
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Jacobs SJ, Herzog S, Tank DC. Quantifying morphological variation in the Castilleja pilosa species complex (Orobanchaceae). PeerJ 2019; 7:e7090. [PMID: 31259097 PMCID: PMC6589334 DOI: 10.7717/peerj.7090] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2018] [Accepted: 05/06/2019] [Indexed: 11/20/2022] Open
Abstract
Robustly delimited species are of paramount importance, the identification of which relies on our ability to discern boundaries between one species and the next. This is not difficult to do when species are very distinct from one another. However, in recently evolved lineages where putative species may have relatively few diagnostic features (e.g., species complexes composed of very similar species, the boundaries between which are often unclear), defining species boundaries can be more challenging. Hence, the field of species delimitation has widely advocated the use of multiple lines of evidence to delimit species, particularly in species complexes. Excessive taxonomic confusion, often the result of species descriptions that shift through time (e.g., during revisionary work and regional treatments), can further complicate the search for diagnostic features in species complexes. Here, as a first step in robustly delimiting species boundaries, we quantify and describe morphological variation in the Castilleja pilosa species complex. We first infer the morphospace of the species complex and use fuzzy-clustering techniques to explore the morphological variation in the system. Next, we hypothesize the position of type specimens within that morphospace. In so doing, we aim to visualize the impact that regional treatments have had on the conceptualization of taxa through time. We find that there is limited morphological variation among members of this complex, and we determine that the morphological concept of these species have shifted through time and are no longer accurately represented by species descriptions.
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Affiliation(s)
- Sarah J Jacobs
- Stillinger Herbarium, University of Idaho, Moscow, ID, USA.,Biological Sciences, University of Idaho, Moscow, ID, USA.,Institute for Bioinformatics and Evolutionary Studies (IBEST), University of Idaho, Moscow, ID, USA
| | - Sarah Herzog
- Stillinger Herbarium, University of Idaho, Moscow, ID, USA.,Biological Sciences, University of Idaho, Moscow, ID, USA
| | - David C Tank
- Stillinger Herbarium, University of Idaho, Moscow, ID, USA.,Biological Sciences, University of Idaho, Moscow, ID, USA.,Institute for Bioinformatics and Evolutionary Studies (IBEST), University of Idaho, Moscow, ID, USA
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Herzog S, D'Andrea W, DePierro J. Zoning out: Automatic and conscious attention biases are differentially related to dissociative and post-traumatic symptoms. Psychiatry Res 2019; 272:304-310. [PMID: 30597381 DOI: 10.1016/j.psychres.2018.12.110] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/17/2017] [Revised: 12/20/2018] [Accepted: 12/20/2018] [Indexed: 10/27/2022]
Abstract
Few studies of attention bias in traumatized samples directly compare automatic and conscious (e.g. supraliminal) attentional strategies. Additionally, research to-date indicates inconsistent evidence for threat-related attention bias in individuals with PTSD symptoms. This may be due to the heterogeneity in PTSD symptoms and concurrent dissociation, particularly derealization and depersonalization, since these may contribute to decreased awareness of, or slower responding to, threatening stimuli. Using an internet-based paradigm, the current study measured attention biases in a visual dot-probe task using rapid (250 ms), brief supraliminal (500 ms), and long-latency supraliminal (2000 ms) exposures. One hundred and forty-seven adult participants completed a range of trauma-related symptom measures. Results indicated a significant association between PTSD symptoms and bias toward threat in the 2000 ms exposure. Both state and trait derealization were significantly related to a bias away from threat at the 250 ms exposure, indicating a reflexive avoidance of rapidly presented threat cues. State measures of dissociation were also related to avoidance of threat in the 500 ms condition. Findings highlight the disparate effects of trauma-related symptoms on attention, and have significant clinical implications for dissociative symptoms as a target of treatment in traumatized samples.
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Affiliation(s)
- Sarah Herzog
- Department of Psychology, The New School for Social Research, 80 Fifth Avenue, 7th Floor, New York, NY 10011, United States.
| | - Wendy D'Andrea
- Department of Psychology, The New School for Social Research, 80 Fifth Avenue, 7th Floor, New York, NY 10011, United States
| | - Jonathan DePierro
- World Trade Center Health Program, Icahn School of Medicine at Mount Sinai, 1468 Madison Avenue, Annenberg Building, 3rd Floor, New York, NY 10029, United States
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22
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Herzog S, DePierro J, D’Andrea W. Driven to distraction: Childhood trauma and dissociation, but not PTSD symptoms, are related to threat avoidance. European Journal of Trauma & Dissociation 2018. [DOI: 10.1016/j.ejtd.2018.03.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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23
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Herzog S, D'Andrea W, DePierro J, Khedari V. When stress becomes the new normal: Alterations in attention and autonomic reactivity in repeated traumatization. J Trauma Dissociation 2018; 19:362-381. [PMID: 29547073 DOI: 10.1080/15299732.2018.1441356] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
There is need for further work clarifying attention-physiology interactions by degree of exposure to early victimization, as it is clear that cumulative trauma in childhood, that is, polyvictimization, may have lasting effects on the stress response that differ from those of acute traumatization. The present study examined relationships between baseline and task-related physiology (indexed by respiratory sinus arrhythmia [RSA] and heart rate [HR], respectively), and attention biases (via the dot probe task), in 63 community-dwelling adult women stratified on the basis of self-reported exposure to multiple types of childhood interpersonal victimization (i.e., sexual, physical, and emotional abuse). Consistent with hypotheses, a pattern of threat hypervigilance was found in the single victimization group, while threat avoidance was found in the polyvictimization group. Additionally, avoidance of threat in the polyvictimized group was associated with lower baseline RSA. Moderation analyses indicated that condition-wise HR moderated the relationship between level of exposure and attention biases in the high-threat condition. The present findings may clarify basic regulatory mechanisms that play a role in lifetime revictimization in individuals with cumulative childhood trauma exposure and may have implications for their prognostic and therapeutic outcomes.
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Affiliation(s)
- Sarah Herzog
- a Department of Psychology , The New School , New York , NY , USA
| | - Wendy D'Andrea
- a Department of Psychology , The New School , New York , NY , USA
| | - Jonathan DePierro
- b World Trade Center Health Program Clinical Center of Excellence , New York University School of Medicine , New York , NY , USA
| | - Vivian Khedari
- a Department of Psychology , The New School , New York , NY , USA
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Herden C, Herzog S, Piepenbring A, Lierz M. Die neuropathische Drüsenmagendilatation der Psittaziden und das aviäre Bornavirus als potenzielle Ursache. Tierarztl Prax Ausg K 2018. [DOI: 10.1055/s-0038-1622832] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
Zusammenfassung
Gegenstand: Die neuropathische Drüsenmagendilatation der Psittaziden (PDD) ist eine bedeutende Erkrankung von Papageien, die stets letal endet. Sie tritt bei zahlreichen Papageienspezies auf und bedroht ganze Zuchtbestände, kommt bei anderen Vogelfamilien dagegen sehr selten vor. Die Ursache dieser Erkrankung war bislang unklar, obwohl schon lange eine Virusätiologie vermutet wurde. Kürzlich gelang der Nachweis eines neuen Virus (aviäres Bornavirus [ABV]) aus an PDD erkrankten Papageien, das seitdem als wahrscheinlichste Ursache gilt. Obwohl auch klinisch gesunde Papageien eine ABV-Infektion aufweisen können, zeigen verschiedene Studien einen Zusammenhang zwischen der Virusinfektion und der klinischen Erkrankung der PDD auf. Neben dem direkten Virusnachweis eignen sich auch serologische Methoden zum Infektionsnachweis. Schlussfolgerungen: Das aviäre Bornavirus ist zurzeit der wahrscheinlichste Kandidat als Erreger der PDD. Zuchtbestände und Neuzugänge sollten daher molekularbiologisch und serologisch auf eine Infektion mit ABV überprüft werden. Der diagnostische Wert des ABV-Infektionsnachweises zur Absicherung der klinischen Diagnose PDD muss in weiteren Studien genauer abgeklärt werden.
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Kollmann M, Scheuchenegger A, Aldrian L, Herzog S, Mautner E, Lang U, Urlesberger B, Obermayer-Pietsch B, Raggam RB, Klaritsch P. Früher Haut zu Haut Kontakt nach Kaiserschnitt – eine randomisierte klinische Pilotstudie. Geburtshilfe Frauenheilkd 2016. [DOI: 10.1055/s-0036-1582188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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Wemheuer F, Wemheuer B, Kretzschmar D, Pfeiffer B, Herzog S, Daniel R, Vidal S. Impact of grassland management regimes on bacterial endophyte diversity differs with grass species. Lett Appl Microbiol 2016; 62:323-9. [DOI: 10.1111/lam.12551] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2015] [Revised: 01/02/2016] [Accepted: 01/19/2016] [Indexed: 11/30/2022]
Affiliation(s)
- F. Wemheuer
- Department of Crop Sciences; Georg-August-University Göttingen; Göttingen Germany
| | - B. Wemheuer
- Institute of Microbiology and Genetics; Georg-August-University Göttingen; Göttingen Germany
| | - D. Kretzschmar
- Department of Crop Sciences; Georg-August-University Göttingen; Göttingen Germany
| | - B. Pfeiffer
- Institute of Microbiology and Genetics; Georg-August-University Göttingen; Göttingen Germany
| | - S. Herzog
- Institute of Microbiology and Genetics; Georg-August-University Göttingen; Göttingen Germany
| | - R. Daniel
- Institute of Microbiology and Genetics; Georg-August-University Göttingen; Göttingen Germany
| | - S. Vidal
- Department of Crop Sciences; Georg-August-University Göttingen; Göttingen Germany
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Maschmeyer P, Zimmermann J, Tran CL, Haftmann C, Rausch B, Riedel R, Herzog S, Chang HD, Radbruch A, Mashreghi MF. A7.19 Systemic inhibition of MIR-148A by antagomirs reduces CD4 +T helper cell numbers and alleviates inflammation in a preclinical model of transfer colitis. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-209124.150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Knackmuss U, Lindner SE, Aneichyk T, Kotkamp B, Knust Z, Villunger A, Herzog S. MAP3K11 is a tumor suppressor targeted by the oncomiR miR-125b in early B cells. Cell Death Differ 2016; 23:242-52. [PMID: 26138442 PMCID: PMC4678593 DOI: 10.1038/cdd.2015.87] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2014] [Revised: 05/05/2015] [Accepted: 05/22/2015] [Indexed: 12/19/2022] Open
Abstract
MicroRNAs (miRNAs) are a class of small, non-coding RNAs that posttranscriptionally regulate gene expression and thereby control most, if not all, biological processes. Aberrant miRNA expression has been linked to a variety of human diseases including cancer, but the underlying molecular mechanism often remains unclear. Here we have screened a miRNA expression library in a growth factor-dependent mouse pre-B-cell system to identify miRNAs with oncogenic activity. We show that miR-125b is sufficient to render pre-B cells growth factor independent and demonstrate that continuous expression of miR-125b is necessary to keep these cells in a transformed state. Mechanistically, we find that the expression of miR-125b protects against apoptosis induced by growth factor withdrawal, and that it blocks the differentiation of pre-B to immature B cells. In consequence, miR-125b-transformed cells maintain expression of their pre-B-cell receptor that provides signals for continuous proliferation and survival even in the absence of growth factor. Employing microarray analysis, we identified numerous targets of miR-125b, but only reconstitution of MAP3K11, a critical regulator of mitogen- and stress-activated kinase signaling, interferes with the cellular fitness of the transformed cells. Together, this indicates that MAP3K11 might function as an important tumor suppressor neutralized by oncomiR-125b in B-cell leukemia.
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Affiliation(s)
- U Knackmuss
- Centre for Biological Signalling Studies (bioss), Albert-Ludwigs-University Freiburg, Freiburg, Germany
| | - S E Lindner
- Division of Developmental Immunology, Biocenter Innsbruck, Medical University of Innsbruck, Innsbruck, Austria
| | - T Aneichyk
- Division of Molecular Pathophysiology, Biocenter Innsbruck, Medical University of Innsbruck, Innsbruck, Austria
| | - B Kotkamp
- Centre for Biological Signalling Studies (bioss), Albert-Ludwigs-University Freiburg, Freiburg, Germany
| | - Z Knust
- Centre for Biological Signalling Studies (bioss), Albert-Ludwigs-University Freiburg, Freiburg, Germany
| | - A Villunger
- Division of Developmental Immunology, Biocenter Innsbruck, Medical University of Innsbruck, Innsbruck, Austria
| | - S Herzog
- Centre for Biological Signalling Studies (bioss), Albert-Ludwigs-University Freiburg, Freiburg, Germany
- Division of Developmental Immunology, Biocenter Innsbruck, Medical University of Innsbruck, Innsbruck, Austria
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Herzog S, Wemheuer F, Wemheuer B, Daniel R. Effects of Fertilization and Sampling Time on Composition and Diversity of Entire and Active Bacterial Communities in German Grassland Soils. PLoS One 2015; 10:e0145575. [PMID: 26694644 PMCID: PMC4687936 DOI: 10.1371/journal.pone.0145575] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2015] [Accepted: 12/04/2015] [Indexed: 11/19/2022] Open
Abstract
Soil bacteria are major players in driving and regulating ecosystem processes. Thus, the identification of factors shaping the diversity and structure of these communities is crucial for understanding bacterial-mediated processes such as nutrient transformation and cycling. As most studies only target the entire soil bacterial community, the response of active community members to environmental changes is still poorly understood. The objective of this study was to investigate the effect of fertilizer application and sampling time on structure and diversity of potentially active (RNA-based) and the entire (DNA-based) bacterial communities in German grassland soils. Analysis of more than 2.3 million 16S rRNA transcripts and gene sequences derived from amplicon-based sequencing of 16S rRNA genes revealed that fertilizer application and sampling time significantly altered the diversity and composition of entire and active bacterial communities. Although the composition of both the entire and the active bacterial community was correlated with environmental factors such as pH or C/N ratio, the active community showed a higher sensitivity to environmental changes than the entire community. In addition, functional analyses were performed based on predictions derived from 16S rRNA data. Genes encoding the uptake of nitrate/nitrite, nitrification, and denitrification were significantly more abundant in fertilized plots compared to non-fertilized plots. Hence, this study provided novel insights into changes in dynamics and functions of soil bacterial communities as response to season and fertilizer application.
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Affiliation(s)
- Sarah Herzog
- Department of Genomic and Applied Microbiology & Göttingen Genomics Laboratory, Institute of Microbiology and Genetics, Georg-August-University Göttingen, Grisebachstr. 8, 37077 Göttingen, Germany
| | - Franziska Wemheuer
- Section of Agricultural Entomology, Department for Crop Sciences, Georg-August-University of Göttingen, Grisebachstr. 6, 37077 Göttingen, Germany
| | - Bernd Wemheuer
- Department of Genomic and Applied Microbiology & Göttingen Genomics Laboratory, Institute of Microbiology and Genetics, Georg-August-University Göttingen, Grisebachstr. 8, 37077 Göttingen, Germany
| | - Rolf Daniel
- Department of Genomic and Applied Microbiology & Göttingen Genomics Laboratory, Institute of Microbiology and Genetics, Georg-August-University Göttingen, Grisebachstr. 8, 37077 Göttingen, Germany
- * E-mail:
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Sochalska M, Ottina E, Tuzlak S, Herzog S, Herold M, Villunger A. Conditional knockdown of BCL2A1 reveals rate-limiting roles in BCR-dependent B-cell survival. Cell Death Differ 2015; 23:628-39. [PMID: 26450454 PMCID: PMC4986635 DOI: 10.1038/cdd.2015.130] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2015] [Revised: 08/19/2015] [Accepted: 08/27/2015] [Indexed: 11/09/2022] Open
Abstract
Bcl2 family proteins control mitochondrial apoptosis and its members exert critical cell type and differentiation stage-specific functions, acting as barriers against autoimmunity or transformation. Anti-apoptotic Bcl2a1/Bfl1/A1 is frequently deregulated in different types of blood cancers in humans but its physiological role is poorly understood as quadruplication of the Bcl2a1 gene locus in mice hampers conventional gene targeting strategies. Transgenic overexpression of A1, deletion of the A1-a paralogue or constitutive knockdown in the hematopoietic compartment of mice by RNAi suggested rate-limiting roles in lymphocyte development, granulopoiesis and mast cell activation. Here we report on the consequences of conditional knockdown of A1 protein expression using a reverse transactivator (rtTA)-driven approach that highlights a critical role for this Bcl2 family member in the maintenance of mature B-cell homeostasis. Furthermore, we define the A1/Bim (Bcl-2 interacting mediator of cell death) axis as a target of key kinases mediating B-cell receptor (BCR)-dependent survival signals, such as, spleen tyrosine kinase (Syk) and Brutons tyrosine kinase (Btk). As such, A1 represents a putative target for the treatment of B-cell-related pathologies depending on hyperactivation of BCR-emanating survival signals and loss of A1 expression accounts, in part, for the pro-apoptotic effects of Syk- or Btk inhibitors that rely on the ‘BH3-only' protein Bim for cell killing.
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Affiliation(s)
- M Sochalska
- Division of Developmental Immunology, Biocenter, Medical University Innsbruck, Innsbruck, Austria
| | - E Ottina
- Division of Developmental Immunology, Biocenter, Medical University Innsbruck, Innsbruck, Austria
| | - S Tuzlak
- Division of Developmental Immunology, Biocenter, Medical University Innsbruck, Innsbruck, Austria
| | - S Herzog
- Division of Developmental Immunology, Biocenter, Medical University Innsbruck, Innsbruck, Austria
| | - M Herold
- The Walter and Eliza Hall Institute for Medical Research, University of Melbourne, Parkville, Victoria, Australia.,Department of Medical Biology, University of Melbourne, Parkville, Victoria, Australia
| | - A Villunger
- Division of Developmental Immunology, Biocenter, Medical University Innsbruck, Innsbruck, Austria
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Kollmann M, Scheuchenegger A, Aldrian L, Herzog S, Mautner E, Lang U, Urlesberger B, Obermayer-Pietsch B, Klaritsch P. Pilotstudie: „Sectio Bonding/Early Skin-To-Skin Contact (SSC) after Caesarean Section”. Geburtshilfe Frauenheilkd 2015. [DOI: 10.1055/s-0035-1555044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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Kollmann M, Günther F, Schneider V, Herzog S, Martins W, Raine-Fenning N, Obermayer-Pietsch B, Lang U, Klaritsch P. Polyzystisches Ovar Syndrom und perinatales Outcome: Vergleich der unterschiedlichen diagnostischen Kriterien. Geburtshilfe Frauenheilkd 2015. [DOI: 10.1055/s-0035-1555037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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Maschmeyer P, Zimmermann J, Tran C, Haftmann C, Rausch B, Riedel R, Herzog S, Chang HD, Radbruch A, Mashreghi MF. AB0038 Modulation of the Survival of Proinflammatory TH1 Lymphocytes by Stable Expression of MIR-148A Sponges in a Murine Model of Transfer Colitis. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.6389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Al-Ibadi B, Piepenbring A, Herzog S, Heffels-Redmann U, Enderlein D, Lierz M, Herden C. Comparison between Abv2 and Abv4 distribution patterns in experimentally infected cockatiels. J Comp Pathol 2015. [DOI: 10.1016/j.jcpa.2014.10.046] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Affiliation(s)
- B. Elschner
- Physikalisches Institut der Friedrich-Schiller-Universität Jena
| | - S. Herzog
- Institut für anorganische Chemie der Friedrich-Schiller-Universität Jena
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Abstract
The results of spectroscopic and paramagnetic resonance investigations show that the previously prepared substance with the empirical composition [VIdip3] J · ½ py is most presumably a mixed crystal of two similar compounds of bivalent and zero-valent vanadium. The ion [VIdip3] +⃝ exists only in solution and gives no paramagnetic resonance signal, which is understood on account of a low-lying singlet ground state.
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Affiliation(s)
- E. König
- Aus dem Institut für physikalische Chemie der Universität Frankfurt am Main und dem Mellon Institute, Pittsburgh 13, Pennsylvania, USA *
| | - H. Fischer
- aus dem Deutschen Kunststoffinstitut, Darmstadt
| | - S. Herzog
- aus dem Institut für anorganische Chemie der Universität Greifswald
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Affiliation(s)
- S. Herzog
- Institut für Anorganische Chemie, Ernst-Moritz-Arndt-Universität, Greifswald
| | - E. Kubetschek
- Institut für Anorganische Chemie, Ernst-Moritz-Arndt-Universität, Greifswald
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Affiliation(s)
- S. Herzog
- Institut für Anorganische Chemie der Universität Jena
| | | | - W. Schön
- Institut für Anorganische Chemie der Universität Jena
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Affiliation(s)
- S. Herzog
- Institut für Anorganische Chemie der Ernst Moritz Arndt-Universität, Greifswald
| | - H. Zühlke
- Institut für Anorganische Chemie der Ernst Moritz Arndt-Universität, Greifswald
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Affiliation(s)
- S. Herzog
- Institut für Anorganische Chemie der Ernst-Moritz-Arndt-Universität Greifswald
| | - K. Gustav
- Institut für Anorganische Chemie der Ernst-Moritz-Arndt-Universität Greifswald
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Bechter K, Herzog S, Behr W, Schüttler R. Investigations of cerebrospinal fluid in Borna disease virus seropositive psychiatric patients. Eur Psychiatry 2012; 10:250-8. [PMID: 19698348 DOI: 10.1016/0924-9338(96)80302-6] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/13/1994] [Accepted: 12/13/1994] [Indexed: 11/16/2022] Open
Abstract
Borna disease virus (BDV) appears to cause meningoencephalitis and schizophreniform psychosis in sporadic cases according to earlier cerebrospinal fluid (CSF) inoculation experiments (Rott et al, 1991). However, CSF parameters in BDV seropositive psychiatric patients proved nearly all normal; only the most sensitive CSF/serum index I-BDV for intrathecally produced BDV specific IgG was pathologic in 10.5-29.0% (according to different methodological limits) of patients. An increase in sensitivity was attempted to detect specific IgG in CSF in a part of the cases by concentration. Concentration procedure does not significantly increase methodological bias according to a statistical analysis of the results. Our findings support the hypothesis that BDV may cause or contribute to the pathogenesis of a diagnostically broad pattern of psychiatric syndromes. The occurence of a spectrum of diagnoses is expected from non-specificity of psychiatric symptoms in other infectious diseases of the brain as well as from results in experimental Borna disease (BD) in animals, when a majority of the animals showed rather unspecific symptomatology due to slight, preferentially limbic encephalitis. Slight deficiencies from an earlier BDV infection could explain continuing symptoms in a part of the cases. Recurrences years after infection are well known in experimental and natural BD in animals. It remains open, whether this mechanism could play a more prominent role in a form of "symptomatic" cyclothymia and "symptomatic" schizophrenia, although the results of CSF investigations are more clear in BDV seropositive patients with major psychoses.
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Affiliation(s)
- K Bechter
- University of Ulm, Department of Psychiatry II and Department of Psychiatry of the Bezirkskrankenhaus Günzburg, Ludwig-Heilmeyer-Str 2, 89312 Günzburg, Germany
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Hussner J, Ameling S, Hammer E, Herzog S, Steil L, Schwebe M, Niessen J, Schroeder HWS, Kroemer HK, Ritter CA, Völker U, Bien S. Regulation of interferon-inducible proteins by doxorubicin via interferon γ-Janus tyrosine kinase-signal transducer and activator of transcription signaling in tumor cells. Mol Pharmacol 2012; 81:679-88. [PMID: 22323498 DOI: 10.1124/mol.111.075994] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Activation of the immune system is a way for host tissue to defend itself against tumor growth. Hence, treatment strategies that are based on immunomodulation are on the rise. Conventional cytostatic drugs such as the anthracycline doxorubicin can also activate immune cell functions of macrophages and natural killer cells. In addition, cytotoxicity of doxorubicin can be enhanced by combining this drug with the cytokine interferon-γ (IFNγ). Although doxorubicin is one of the most applied cytostatics, the molecular mechanisms of its immunomodulation ability have not been investigated thoroughly. In microarray analyses of HeLa cells, a set of 19 genes related to interferon signaling was significantly over-represented among genes regulated by doxorubicin exposure, including signal transducer and activator of transcription (STAT) 1 and 2, interferon regulatory factor 9, N-myc and STAT interactor, and caspase 1. Regulation of these genes by doxorubicin was verified with real-time polymerase chain reaction and immunoblotting. An enhanced secretion of IFNγ was observed when HeLa cells were exposed to doxorubicin compared with untreated cells. IFNγ-neutralizing antibodies and inhibition of Janus tyrosine kinase (JAK)-STAT signaling [aurintricarboxylic acid (ATA), (E)-2-cyano-3-(3,4-dihydrophenyl)-N-(phenylmethyl)-2-propenamide (AG490), STAT1 small interfering RNA] significantly abolished doxorubicin-stimulated expression of interferon signaling-related genes. Furthermore, inhibition of JAK-STAT signaling significantly reduced doxorubicin-induced caspase 3 activation and desensitized HeLa cells to doxorubicin cytotoxicity. In conclusion, we demonstrate that doxorubicin induces interferon-responsive genes via IFNγ-JAK-STAT1 signaling and that this pathway is relevant for doxorubicin's cytotoxicity in HeLa cells. Immunomodulation is a promising strategy in anticancer treatment, so this novel mode of action of doxorubicin may help to further improve the use of this drug among different types of anticancer treatment strategies.
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Affiliation(s)
- J Hussner
- Department of Pharmacology, Ernst-Moritz-Arndt University, Greifswald, Germany
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Heijne J, Althaus C, Herzog S, Tao G, Kent C, Low N. O1-S01.05 Estimating the rate of annual chlamydia screening uptake in US women. Br J Vener Dis 2011. [DOI: 10.1136/sextrans-2011-050109.5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Heijne J, Althaus C, Herzog S, Low N. P1-S4.22 Impact of a hypothetical chlamydia vaccine on population prevalence: a mathematical Modelling Study. Br J Vener Dis 2011. [DOI: 10.1136/sextrans-2011-050108.166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Nacke H, Will C, Herzog S, Nowka B, Engelhaupt M, Daniel R. Identification of novel lipolytic genes and gene families by screening of metagenomic libraries derived from soil samples of the German Biodiversity Exploratories. FEMS Microbiol Ecol 2011; 78:188-201. [PMID: 21395625 DOI: 10.1111/j.1574-6941.2011.01088.x] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Microbial metagenomes derived from soils are rich sources for the discovery of novel genes and biocatalysts. Fourteen environmental plasmid and seven fosmid libraries obtained from 10 German forest soils (A horizons) and six grassland soils (A and B horizons) were screened for genes conferring lipolytic activity. The libraries comprised approximately 29.3 Gb of cloned soil DNA. Partial activity-based screening of the constructed libraries resulted in the identification of 37 unique lipolytic clones. The amino acid sequences of the 37 corresponding lipolytic gene products shared 29-90% identity to other lipolytic enzymes, which were mainly uncharacterized or derived from uncultured microorganisms. Multiple sequence alignments and phylogenetic tree analysis revealed that 35 of the predicted proteins were new members of known families of lipolytic enzymes. The remaining two gene products represent two putatively new families. In addition, sequence analysis indicated that two genes encode true lipases, whereas the other genes encode esterases. The determination of substrate specificity and chain-length selectivity using different triacylglycerides and p-nitrophenyl esters of fatty acids as substrates supported the classification of the esterases.
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Affiliation(s)
- Heiko Nacke
- Department of Genomic and Applied Microbiology, Institute of Microbiology and Genetics, Georg-August University Göttingen, Göttingen, Germany
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Diez-Roux G, Banfi S, Sultan M, Geffers L, Anand S, Rozado D, Magen A, Canidio E, Pagani M, Peluso I, Lin-Marq N, Koch M, Bilio M, Cantiello I, Verde R, De Masi C, Bianchi SA, Cicchini J, Perroud E, Mehmeti S, Dagand E, Schrinner S, Nürnberger A, Schmidt K, Metz K, Zwingmann C, Brieske N, Springer C, Hernandez AM, Herzog S, Grabbe F, Sieverding C, Fischer B, Schrader K, Brockmeyer M, Dettmer S, Helbig C, Alunni V, Battaini MA, Mura C, Henrichsen CN, Garcia-Lopez R, Echevarria D, Puelles E, Garcia-Calero E, Kruse S, Uhr M, Kauck C, Feng G, Milyaev N, Ong CK, Kumar L, Lam M, Semple CA, Gyenesei A, Mundlos S, Radelof U, Lehrach H, Sarmientos P, Reymond A, Davidson DR, Dollé P, Antonarakis SE, Yaspo ML, Martinez S, Baldock RA, Eichele G, Ballabio A. A high-resolution anatomical atlas of the transcriptome in the mouse embryo. PLoS Biol 2011; 9:e1000582. [PMID: 21267068 PMCID: PMC3022534 DOI: 10.1371/journal.pbio.1000582] [Citation(s) in RCA: 503] [Impact Index Per Article: 38.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2010] [Accepted: 12/06/2010] [Indexed: 11/23/2022] Open
Abstract
The manuscript describes the “digital transcriptome atlas” of the developing mouse embryo, a powerful resource to determine co-expression of genes, to identify cell populations and lineages and to identify functional associations between genes relevant to development and disease. Ascertaining when and where genes are expressed is of crucial importance to understanding or predicting the physiological role of genes and proteins and how they interact to form the complex networks that underlie organ development and function. It is, therefore, crucial to determine on a genome-wide level, the spatio-temporal gene expression profiles at cellular resolution. This information is provided by colorimetric RNA in situ hybridization that can elucidate expression of genes in their native context and does so at cellular resolution. We generated what is to our knowledge the first genome-wide transcriptome atlas by RNA in situ hybridization of an entire mammalian organism, the developing mouse at embryonic day 14.5. This digital transcriptome atlas, the Eurexpress atlas (http://www.eurexpress.org), consists of a searchable database of annotated images that can be interactively viewed. We generated anatomy-based expression profiles for over 18,000 coding genes and over 400 microRNAs. We identified 1,002 tissue-specific genes that are a source of novel tissue-specific markers for 37 different anatomical structures. The quality and the resolution of the data revealed novel molecular domains for several developing structures, such as the telencephalon, a novel organization for the hypothalamus, and insight on the Wnt network involved in renal epithelial differentiation during kidney development. The digital transcriptome atlas is a powerful resource to determine co-expression of genes, to identify cell populations and lineages, and to identify functional associations between genes relevant to development and disease. In situ hybridization (ISH) can be used to visualize gene expression in cells and tissues in their native context. High-throughput ISH using nonradioactive RNA probes allowed the Eurexpress consortium to generate a comprehensive, interactive, and freely accessible digital gene expression atlas, the Eurexpress transcriptome atlas (http://www.eurexpress.org), of the E14.5 mouse embryo. Expression data for over 15,000 genes were annotated for hundreds of anatomical structures, thus allowing us to systematically identify tissue-specific and tissue-overlapping gene networks. We illustrate the value of the Eurexpress atlas by finding novel regional subdivisions in the developing brain. We also use the transcriptome atlas to allocate specific components of the complex Wnt signaling pathway to kidney development, and we identify regionally expressed genes in liver that may be markers of hematopoietic stem cell differentiation.
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Affiliation(s)
| | - Sandro Banfi
- Telethon Institute of Genetics and Medicine, Naples, Italy
| | - Marc Sultan
- Max Planck Institute for Molecular Genetics, Berlin, Germany
| | - Lars Geffers
- Genes and Behavior Department, Max Planck Institute of Biophysical Chemistry, Goettingen, Germany
| | - Santosh Anand
- Telethon Institute of Genetics and Medicine, Naples, Italy
| | - David Rozado
- Max Planck Institute for Molecular Genetics, Berlin, Germany
| | - Alon Magen
- Max Planck Institute for Molecular Genetics, Berlin, Germany
| | | | | | - Ivana Peluso
- Telethon Institute of Genetics and Medicine, Naples, Italy
| | - Nathalie Lin-Marq
- Department of Genetic Medicine and Development, University of Geneva Medical School, Geneva, Switzerland
| | - Muriel Koch
- Institut Clinique de la Souris, Illkirch, France
| | - Marchesa Bilio
- Telethon Institute of Genetics and Medicine, Naples, Italy
| | | | - Roberta Verde
- Telethon Institute of Genetics and Medicine, Naples, Italy
| | | | | | - Juliette Cicchini
- Department of Genetic Medicine and Development, University of Geneva Medical School, Geneva, Switzerland
| | - Elodie Perroud
- Department of Genetic Medicine and Development, University of Geneva Medical School, Geneva, Switzerland
| | - Shprese Mehmeti
- Department of Genetic Medicine and Development, University of Geneva Medical School, Geneva, Switzerland
| | - Emilie Dagand
- Max Planck Institute for Molecular Genetics, Berlin, Germany
| | | | - Asja Nürnberger
- Max Planck Institute for Molecular Genetics, Berlin, Germany
| | - Katja Schmidt
- Max Planck Institute for Molecular Genetics, Berlin, Germany
| | - Katja Metz
- Max Planck Institute for Molecular Genetics, Berlin, Germany
| | | | - Norbert Brieske
- Max Planck Institute for Molecular Genetics, Berlin, Germany
| | - Cindy Springer
- Max Planck Institute for Molecular Genetics, Berlin, Germany
| | - Ana Martinez Hernandez
- Genes and Behavior Department, Max Planck Institute of Biophysical Chemistry, Goettingen, Germany
| | - Sarah Herzog
- Genes and Behavior Department, Max Planck Institute of Biophysical Chemistry, Goettingen, Germany
| | - Frauke Grabbe
- Genes and Behavior Department, Max Planck Institute of Biophysical Chemistry, Goettingen, Germany
| | - Cornelia Sieverding
- Genes and Behavior Department, Max Planck Institute of Biophysical Chemistry, Goettingen, Germany
| | - Barbara Fischer
- Genes and Behavior Department, Max Planck Institute of Biophysical Chemistry, Goettingen, Germany
| | - Kathrin Schrader
- Genes and Behavior Department, Max Planck Institute of Biophysical Chemistry, Goettingen, Germany
| | - Maren Brockmeyer
- Genes and Behavior Department, Max Planck Institute of Biophysical Chemistry, Goettingen, Germany
| | - Sarah Dettmer
- Genes and Behavior Department, Max Planck Institute of Biophysical Chemistry, Goettingen, Germany
| | - Christin Helbig
- Genes and Behavior Department, Max Planck Institute of Biophysical Chemistry, Goettingen, Germany
| | | | | | - Carole Mura
- Institut Clinique de la Souris, Illkirch, France
| | | | - Raquel Garcia-Lopez
- Experimental Embryology Lab, Instituto de Neurociencias, Universidad Miguel Hernandez, San Juan de Alicante, Spain
| | - Diego Echevarria
- Experimental Embryology Lab, Instituto de Neurociencias, Universidad Miguel Hernandez, San Juan de Alicante, Spain
| | - Eduardo Puelles
- Experimental Embryology Lab, Instituto de Neurociencias, Universidad Miguel Hernandez, San Juan de Alicante, Spain
| | - Elena Garcia-Calero
- Experimental Embryology Lab, Instituto de Neurociencias, Universidad Miguel Hernandez, San Juan de Alicante, Spain
| | | | - Markus Uhr
- Genes and Behavior Department, Max Planck Institute of Biophysical Chemistry, Goettingen, Germany
| | - Christine Kauck
- Genes and Behavior Department, Max Planck Institute of Biophysical Chemistry, Goettingen, Germany
| | - Guangjie Feng
- Medical Research Council Human Genetics Unit, Western General Hospital, Edinburgh, United Kingdom
| | - Nestor Milyaev
- Medical Research Council Human Genetics Unit, Western General Hospital, Edinburgh, United Kingdom
| | - Chuang Kee Ong
- Medical Research Council Human Genetics Unit, Western General Hospital, Edinburgh, United Kingdom
| | - Lalit Kumar
- Medical Research Council Human Genetics Unit, Western General Hospital, Edinburgh, United Kingdom
| | - MeiSze Lam
- Medical Research Council Human Genetics Unit, Western General Hospital, Edinburgh, United Kingdom
| | - Colin A. Semple
- Medical Research Council Human Genetics Unit, Western General Hospital, Edinburgh, United Kingdom
| | - Attila Gyenesei
- Medical Research Council Human Genetics Unit, Western General Hospital, Edinburgh, United Kingdom
| | - Stefan Mundlos
- Max Planck Institute for Molecular Genetics, Berlin, Germany
| | - Uwe Radelof
- RZPD—Deutsches Ressourcenzentrum für Genomforschung, Berlin, Germany
| | - Hans Lehrach
- Max Planck Institute for Molecular Genetics, Berlin, Germany
| | | | - Alexandre Reymond
- Center for Integrative Genomics, University of Lausanne, Lausanne, Switzerland
| | - Duncan R. Davidson
- Medical Research Council Human Genetics Unit, Western General Hospital, Edinburgh, United Kingdom
- * E-mail: (DRD); (PD); (SEA); (M-LY); (SM); (RAB); (GE); (AB)
| | - Pascal Dollé
- Institut de Génétique et de Biologie Moléculaire et Cellulaire, Inserm U 964, CNRS UMR 7104, Faculté de Médecine, Université de Strasbourg; Illkirch, France
- * E-mail: (DRD); (PD); (SEA); (M-LY); (SM); (RAB); (GE); (AB)
| | - Stylianos E. Antonarakis
- Department of Genetic Medicine and Development, University of Geneva Medical School, Geneva, Switzerland
- University Hospitals of Geneva, Geneva, Switzerland
- * E-mail: (DRD); (PD); (SEA); (M-LY); (SM); (RAB); (GE); (AB)
| | - Marie-Laure Yaspo
- Max Planck Institute for Molecular Genetics, Berlin, Germany
- * E-mail: (DRD); (PD); (SEA); (M-LY); (SM); (RAB); (GE); (AB)
| | - Salvador Martinez
- Experimental Embryology Lab, Instituto de Neurociencias, Universidad Miguel Hernandez, San Juan de Alicante, Spain
- * E-mail: (DRD); (PD); (SEA); (M-LY); (SM); (RAB); (GE); (AB)
| | - Richard A. Baldock
- Medical Research Council Human Genetics Unit, Western General Hospital, Edinburgh, United Kingdom
- * E-mail: (DRD); (PD); (SEA); (M-LY); (SM); (RAB); (GE); (AB)
| | - Gregor Eichele
- Genes and Behavior Department, Max Planck Institute of Biophysical Chemistry, Goettingen, Germany
- * E-mail: (DRD); (PD); (SEA); (M-LY); (SM); (RAB); (GE); (AB)
| | - Andrea Ballabio
- Telethon Institute of Genetics and Medicine, Naples, Italy
- Medical Genetics, Department of Pediatrics, Federico II University, Naples, Italy
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas, United States of America
- Jan and Dan Duncan Neurological Research Institute, Texas Children's Hospital, Houston, Texas, United States of America
- * E-mail: (DRD); (PD); (SEA); (M-LY); (SM); (RAB); (GE); (AB)
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Reßmeyer S, Herzog S, Enderlein D, Heffels-Redmann U, Lierz M, Herden C, Buchinder A. Distribution Patterns of Avian Bornavirus in Psittacine Birds Suffering From Proventricular Dilatation Disease. J Comp Pathol 2010. [DOI: 10.1016/j.jcpa.2010.09.043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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