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Differential co-expression networks of the gut microbiota are associated with depression and anxiety treatment resistance among psychiatric inpatients. Prog Neuropsychopharmacol Biol Psychiatry 2023; 120:110638. [PMID: 36122838 DOI: 10.1016/j.pnpbp.2022.110638] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Revised: 09/07/2022] [Accepted: 09/09/2022] [Indexed: 11/22/2022]
Abstract
BACKGROUND Comorbid anxiety and depression are common and are associated with greater disease burden than either alone. Our recent efforts have identified an association between gut microbiota dysfunction and severity of anxiety and depression. In this follow-up, we applied Differential Co-Expression Analysis (DiffCoEx) to identify potential gut microbiota biomarker(s) candidates of treatment resistance among psychiatric inpatients. METHODS In a sample of convenience, 100 psychiatric inpatients provided clinical data at admission and discharge; fecal samples were collected early during the hospitalization. Whole genome shotgun sequencing methods were used to process samples. DiffCoEx was used to identify clusters of microbial features significantly different based on treatment resistance status. Once overlapping features were identified, a knowledge-mining tool was used to review the literature using a list of microbial species/pathways and a select number of medical subject headlines (MeSH) terms relevant for depression, anxiety, and brain-gut-axis dysregulation. Network analysis used overlapping features to identify microbial interactions that could impact treatment resistance. RESULTS DiffCoEx analyzed 10,403 bacterial features: 43/44 microbial features associated with depression treatment resistance overlapped with 43/114 microbial features associated with anxiety treatment resistance. Network analysis resulted in 8 biological interactions between 16 bacterial species. Clostridium perfringens evidenced the highest connection strength (0.95). Erysipelotrichaceae bacterium 6_1_45 has been most widely examined, is associated with inflammation and dysbiosis, but has not been associated with depression or anxiety. CONCLUSION DiffCoEx potentially identified gut bacteria biomarker candidates of depression and anxiety treatment-resistance. Future efforts in psychiatric microbiology should examine the mechanistic relationship of identified pro-inflammatory species, potentially contributing to a biomarker-based algorithm for treatment resistance.
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Orme WH, Fowler JC, Bradshaw MR, Carlson M, Hadden J, Daniel J, Flack JN, Freeland D, Head J, Marder K, Weinstein BL, Madan A. Functional Rehabilitation: An Integrated Treatment Model for Patients With Complex Physical and Psychiatric Conditions. J Psychiatr Pract 2022; 28:193-202. [PMID: 35511095 DOI: 10.1097/pra.0000000000000623] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
The health care delivery system in the United States, structured to provide single-disease care, presents unique challenges for patients with complex physical and psychiatric comorbidities. Patients in these populations are often referred to multiple specialty clinics, encounter little continuity of care or collaboration among their providers, incur high health care costs, and experience poor treatment outcomes. Given these barriers, questions remain about the extent to which siloed and fragmented care, as opposed to the complex nature of the illnesses themselves, contribute to poor outcomes. If given the opportunity to receive well-integrated, consistent, and personalized care, can patients with historically difficult-to-treat comorbid medical and mental illnesses make progress? This article describes an innovative model of care called functional rehabilitation that is designed to address existing barriers in treatment. The functional rehabilitation program seeks to disrupt the escalating effects of interacting comorbidities by offering highly collaborative treatment from a small team of clinicians, personalized interventions using a shared decision-making framework, multipronged treatment options, colocation in a large hospital system, and significant 1:1 time with patients. The article includes a case example with longitudinal outcome data that illustrates how progress can be made with appropriate programmatic supports. Future research should examine the cost-effectiveness of this model of care.
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Madan A, Thompson D, Fowler JC, Ajami NJ, Salas R, Frueh BC, Bradshaw MR, Weinstein BL, Oldham JM, Petrosino JF. The gut microbiota is associated with psychiatric symptom severity and treatment outcome among individuals with serious mental illness. J Affect Disord 2020; 264:98-106. [PMID: 32056780 DOI: 10.1016/j.jad.2019.12.020] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Revised: 12/09/2019] [Accepted: 12/13/2019] [Indexed: 12/17/2022]
Abstract
BACKGROUND Emerging evidence implicates the gut microbiota in central nervous system functioning via its effects on inflammation, the hypothalamic-pituitary axis, and/or neurotransmission. Our understanding of the cellular underpinnings of the brain-gut relationship is based almost exclusively on animal models with some small-scale human studies. This study examined the relationship between the gut microbiota and psychiatric symptom severity and treatment response among inpatients with serious mental illness. METHOD We collected data from adult inpatients (N = 111). Measures of diagnoses, suicide severity, trauma, depression, and anxiety were collected shortly after admission, while self-collected fecal swabs were collected early in the course of hospitalization and processed using 16S rRNA gene sequencing and whole genome shotgun sequencing methods. RESULTS Results indicate that depression and anxiety severity shortly after admission were negatively associated with bacterial richness and alpha diversity. Additional analyses revealed a number of bacterial taxa associated with depression and anxiety severity. Gut microbiota richness and alpha diversity early in the course of hospitalization was a significant predictor of depression remission at discharge. CONCLUSIONS This study is among the first to demonstrate a gut microbiota relationship with symptom severity among psychiatric inpatients as well as a relationship to remission of depression post-treatment. These findings are consistent with animal models and limited human studies as well as with the broader literature implicating inflammation in the pathophysiology of depression. These findings offer the foundation for further studies of novel therapeutic approaches to the treatment, prevention of, or recurrence of serious mental illness.
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Affiliation(s)
- A Madan
- Houston Methodist Hospital, Houston, TX, USA; Psychiatry and Behavioral Sciences, University of Texas Health Science Center at Houston, Houston, TX, USA.
| | - D Thompson
- Alkek Center for Metagenomics and Microbiome Research, Baylor College of Medicine, Houston, TX, USA
| | - J C Fowler
- Houston Methodist Hospital, Houston, TX, USA; Psychiatry and Behavioral Sciences, University of Texas Health Science Center at Houston, Houston, TX, USA
| | - N J Ajami
- Alkek Center for Metagenomics and Microbiome Research, Baylor College of Medicine, Houston, TX, USA
| | - R Salas
- Psychiatry & Behavioral Sciences, Baylor College of Medicine, Houston, TX, USA; Michael E DeBakey VA Medical, Houston, TX, USA; The Menninger Clinic, Houston, TX, USA
| | - B C Frueh
- Psychiatry and Behavioral Sciences, University of Texas Health Science Center at Houston, Houston, TX, USA; Department of Psychology, University of Hawaii, Hilo, USA
| | - M R Bradshaw
- Houston Methodist Hospital, Houston, TX, USA; Psychiatry and Behavioral Sciences, University of Texas Health Science Center at Houston, Houston, TX, USA
| | - B L Weinstein
- Houston Methodist Hospital, Houston, TX, USA; Psychiatry and Behavioral Sciences, University of Texas Health Science Center at Houston, Houston, TX, USA
| | - J M Oldham
- Psychiatry & Behavioral Sciences, Baylor College of Medicine, Houston, TX, USA; The Menninger Clinic, Houston, TX, USA
| | - J F Petrosino
- Alkek Center for Metagenomics and Microbiome Research, Baylor College of Medicine, Houston, TX, USA
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Castelnuovo G. New and Old Adventures of Clinical Health Psychology in the Twenty-First Century: Standing on the Shoulders of Giants. Front Psychol 2017; 8:1214. [PMID: 28790942 PMCID: PMC5522870 DOI: 10.3389/fpsyg.2017.01214] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2017] [Accepted: 07/03/2017] [Indexed: 11/18/2022] Open
Affiliation(s)
- Gianluca Castelnuovo
- Istituto Auxologico Italiano IRCCS, Psychology Research Laboratory, Ospedale San GiuseppeVerbania, Italy.,Department of Psychology, Catholic University of the Sacred HeartMilan, Italy
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Ellis TE. Recognizing and addressing unique vulnerabilities of suicidal patients: Suicide research at The Menninger Clinic. Bull Menninger Clin 2017; 81:39-52. [PMID: 28271906 DOI: 10.1521/bumc.2017.81.1.39] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Suicide risk is an inescapable presence in the treatment of people with psychiatric disorders, a fact that applies especially in inpatient psychiatric settings. This article summarizes a several-year research initiative at The Menninger Clinic aimed at better understanding psychological contributors to suicidality and developing more effective clinical interventions. Two areas of research are described, an outcomes arm focused on assessing the feasibility and effectiveness of a suicide-specific intervention (The Collaborative Assessment and Management of Suicidality) and an exploratory arm whose objective is to learn about psychological vulnerabilities that distinguish suicidal from nonsuicidal patients, with an eye toward developing interventions that address such vulnerabilities. The author concludes that, combined with other developments in the field, this body of work strongly supports the view that suicidal patients should be treated with interventions that specifically target vulnerabilities that seem to set the stage for suicidal episodes.
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Affiliation(s)
- Thomas E Ellis
- The Menninger Clinic and Baylor College of Medicine, Houston, Texas
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