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Liu J, Sun SJ, Lu Y, Ping X, Zhang W, Pei L. Taste dysfunction as a predictor of depression in schizophrenia: A systematic review and meta-analysis. PLoS One 2024; 19:e0300935. [PMID: 38517844 PMCID: PMC10959346 DOI: 10.1371/journal.pone.0300935] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Accepted: 03/06/2024] [Indexed: 03/24/2024] Open
Abstract
OBJECTIVE This study aims to investigate the relationship between taste dysfunction and depression among patients with schizophrenia, to achieve early detection of depression in clinical practice. METHODS Following PRISMA guidance, a comprehensive literature search was conducted globally, covering papers published from 1961 to June 2023. A total of 17 manuscripts were selected through meta-analysis and sensitivity analysis after examining available materials from seven databases to determine the correlation between depression and taste dysfunction. RESULTS The comparison of the 17 selected manuscripts revealed that individuals with gustatory dysfunction may be more likely to experience depressive symptoms (SMD, 0.51, 95% CI, 0.08 to 0.93, p = 0.02). Depression is associated with taste dysfunction in certain aspects, as indicated by the pleasantness ratings of sucrose solutions (SMD, -0.53, 95% confidence interval [CI] -1.11 to 0.05, p = 0.08), gustatory identification ability (SMD, 0.96, 95% CI, 0.03 to 1.89, p = 0.04), and the perception threshold of sweet taste (MD, 0.80, 95% CI, 0.79 to 0.81, p < 0.00001). CONCLUSIONS Due to variations in the methods, designs, and selection criteria employed in the included studies, it is necessary to establish a feasible framework. Future research using detailed and targeted approaches can provide clearer and more unified conclusions on the relationship between taste dysfunction and depression. Moreover, further high-quality research is needed to obtain clearer conclusions and explore the potential of taste dysfunction as an effective tool for early screening of depression. TRIAL REGISTRATION This review has been registered in the PROSPERO on April 2022 with the identifier CRD42023400172.
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Affiliation(s)
- Jia Liu
- Hebei University of Chinese Medicine, Shijiazhuang, Hebei, China
- Hebei Academy of Chinese Medicine Sciences, Shijiazhuang, Hebei, China
- Hebei Key Laboratory of Turbidity, Shijiazhuang, Hebei, China
| | - Shu-Jie Sun
- Hebei University of Chinese Medicine, Shijiazhuang, Hebei, China
| | - Ye Lu
- Hebei Academy of Chinese Medicine Sciences, Shijiazhuang, Hebei, China
- Hebei Key Laboratory of Turbidity, Shijiazhuang, Hebei, China
| | - Xin Ping
- Hebei University of Chinese Medicine, Shijiazhuang, Hebei, China
- Hebei Academy of Chinese Medicine Sciences, Shijiazhuang, Hebei, China
- Hebei Key Laboratory of Turbidity, Shijiazhuang, Hebei, China
| | - Wan Zhang
- Renmin University of China, Beijing, China
| | - Lin Pei
- Hebei University of Chinese Medicine, Shijiazhuang, Hebei, China
- Hebei Academy of Chinese Medicine Sciences, Shijiazhuang, Hebei, China
- Hebei Key Laboratory of Turbidity, Shijiazhuang, Hebei, China
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2
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Young JW. Development of cross-species translational paradigms for psychiatric research in the Research Domain Criteria era. Neurosci Biobehav Rev 2023; 148:105119. [PMID: 36889561 DOI: 10.1016/j.neubiorev.2023.105119] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 02/28/2023] [Accepted: 03/02/2023] [Indexed: 03/08/2023]
Abstract
The past 30 years of IBNS has included research attempting to treat the cognitive and behavioral deficits observed in people with psychiatric conditions. Early work utilized drugs identified from tests thought to be cognition-relevant, however the high failure rate crossing the translational-species barrier led to focus on developing valid cross-species translational tests. The face, predictive, and neurobiological validities used to assess animal models of psychiatry can be used to validate these tests. Clinical sensitivity is another important aspect however, for if the clinical population targeted for treatment does not exhibit task deficits, then why develop treatments? This review covers some work validating cross-species translational tests and suggests future directions. Also covered is the contribution IBNS made to fostering such research and my role in IBNS, making it more available to all including fostering mentor/mentee programs plus spearheading diversity and inclusivity initiatives. All science needs support and IBNS has supported research recreating the behavioral abnormalities that define psychiatric conditions with the aim to improve the lives of people with such conditions.
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Affiliation(s)
- Jared W Young
- Department of Psychiatry, University of California San Diego, La Jolla, CA, USA; Research Service, VA San Diego Healthcare System, San Diego, CA, USA.
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3
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Bartosik NK, Frankowski R, Kobierecki M, Deska K, Twarowski A, Bąk B, Kosmalski M, Pietras T. The association between affective temperaments and depressive symptoms in a population of medical university students, Poland. Front Psychiatry 2023; 14:1077940. [PMID: 37065892 PMCID: PMC10098149 DOI: 10.3389/fpsyt.2023.1077940] [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: 10/23/2022] [Accepted: 02/22/2023] [Indexed: 04/18/2023] Open
Abstract
Background Compared to their peers, medical students are more exposed to stress, and many present symptoms of depression, making them a group prone to experiencing mental illnesses. Objective This study investigates a potential link between the occurrence of symptoms of depression and the dominating type of affective temperament in young people studying at a medical university. Methods One hundred thirty-four medical students were surveyed using two validated questionnaires; the Polish versions of Beck's Depression Inventory-II (BDI-II) and the Temperament Evaluation of the Memphis, Pisa, and San Diego Autoquestionnaire (TEMPS-A). Results The data analysis revealed a significant link between symptoms of depression and affective temperaments, most significantly in subjects with an anxious temperament. Conclusion This study confirms the role of various affective temperaments as a risk factor for mood disorders, specifically depression.
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Affiliation(s)
- Natalia Karina Bartosik
- Students' Research Club, Department of Clinical Pharmacology, Medical University of Łódź, Łódź, Poland
| | - Rafał Frankowski
- Students' Research Club, Department of Clinical Pharmacology, Medical University of Łódź, Łódź, Poland
| | - Mateusz Kobierecki
- Students' Research Club, Department of Clinical Pharmacology, Medical University of Łódź, Łódź, Poland
| | - Kacper Deska
- Students' Research Club, Department of Clinical Pharmacology, Medical University of Łódź, Łódź, Poland
| | - Aleksander Twarowski
- Students' Research Club, Department of Clinical Pharmacology, Medical University of Łódź, Łódź, Poland
| | - Bartłomiej Bąk
- Department of Clinical Pharmacology, Medical University of Łódź, Łódź, Poland
| | - Marcin Kosmalski
- Department of Clinical Pharmacology, Medical University of Łódź, Łódź, Poland
- *Correspondence: Marcin Kosmalski,
| | - Tadeusz Pietras
- Department of Clinical Pharmacology, Medical University of Łódź, Łódź, Poland
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4
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Chen B, Benzien C, Faria V, Ning Y, Cuevas M, Linke J, Croy I, Haehner A, Hummel T. Symptoms of Depression in Patients with Chemosensory Disorders. ORL J Otorhinolaryngol Relat Spec 2021; 83:135-143. [PMID: 33756467 DOI: 10.1159/000513751] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2020] [Accepted: 12/13/2020] [Indexed: 11/19/2022]
Abstract
INTRODUCTION Patients with chemosensory dysfunction frequently report symptoms of depression. The current study aims to clarify whether the type (smell dysfunction, taste dysfunction, and mixed smell and taste dysfunction), severity, duration, or cause of dysfunction have differential impacts on the symptoms of depression. METHODS 899 patients with chemosensory disorders and 62 controls were included. Following a structured interview and an otorhinolaryngological examination, subjects underwent olfactory tests (Sniffin' Sticks), gustatory tests (taste sprays) and an assessment of depressive symptoms (Beck Depression Inventory). Information on the cause and duration of disorders was also collected. RESULTS Patients with combined olfactory/gustatory dysfunction had higher depression scores than patients with smell dysfunction only and controls, and no significant difference was found between the smell dysfunction and controls. Anosmia patients, but not hyposmia patients, exhibited higher depression scores than controls. Among various causes of chemosensory disorders, patients from the posttraumatic group had higher depression scores than patients with other causes of chemosensory dysfunction (sinonasal, idiopathic, or postinfectious). Multiple linear regression analyses suggested that reduced olfactory function was associated with enhanced depression scores in the olfactory disorders group (B = -0.326, t = -2.294, and p = 0.02) and in all patients with chemosensory disorders (B = -0.374, t = -2.550, p = 0.017). DISCUSSION/CONCLUSION Simultaneously decreased input of olfaction and gustation seems to have an additive effect on the exacerbation of emotional dysfunction. Early intervention should be considered for depression symptoms in patients with mixed olfactory/gustatory dysfunction in clinical practice.
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Affiliation(s)
- Ben Chen
- Department of Otorhinolaryngology, Smell & Taste Clinic, TU Dresden, Dresden, Germany, .,Department of Psychiatry, The Affiliated Brain Hospital of Guangzhou Medical University (Guangzhou Huiai Hospital), Guangzhou, China,
| | - Cara Benzien
- Department of Otorhinolaryngology, Smell & Taste Clinic, TU Dresden, Dresden, Germany
| | - Vanda Faria
- Department of Otorhinolaryngology, Smell & Taste Clinic, TU Dresden, Dresden, Germany.,Department of Psychology, Uppsala University, Uppsala, Sweden.,Department of Anesthesiology, Center for Pain and the Brain, Perioperative and Pain Medicine, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Yuping Ning
- Department of Psychiatry, The Affiliated Brain Hospital of Guangzhou Medical University (Guangzhou Huiai Hospital), Guangzhou, China
| | - Mandy Cuevas
- Department of Otorhinolaryngology, Smell & Taste Clinic, TU Dresden, Dresden, Germany
| | - Jana Linke
- Department of Otorhinolaryngology, Smell & Taste Clinic, TU Dresden, Dresden, Germany
| | - Ilona Croy
- Department of Psychosomatic Medicine, TU Dresden, Dresden, Germany
| | - Antje Haehner
- Department of Otorhinolaryngology, Smell & Taste Clinic, TU Dresden, Dresden, Germany
| | - Thomas Hummel
- Department of Otorhinolaryngology, Smell & Taste Clinic, TU Dresden, Dresden, Germany
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Platzer M, Fellendorf FT, Bengesser SA, Birner A, Dalkner N, Hamm C, Lenger M, Maget A, Pilz R, Queissner R, Reininghaus B, Reiter A, Mangge H, Zelzer S, Kapfhammer HP, Reininghaus EZ. The Relationship Between Food Craving, Appetite-Related Hormones and Clinical Parameters in Bipolar Disorder. Nutrients 2020; 13:nu13010076. [PMID: 33383670 DOI: 10.3390/nu13010076] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Revised: 12/20/2020] [Accepted: 12/23/2020] [Indexed: 12/24/2022] Open
Abstract
Obesity and weight gain in bipolar disorder (BD) have multifactorial underlying causes such as medication side effects, atypical depressive symptomatology, genetic variants, and disturbances in the neuro-endocrinal system. Therefore, we aim to explore the associations between food craving (FC), clinical parameters, psychotropic medication, and appetite-related hormones. In this cross-sectional investigation, 139 individuals with BD and 93 healthy controls (HC) completed the food craving inventory (FCI). In addition, blood samples (including leptin and acylated ghrelin) were analyzed and sociodemographic and anthropometric data were collected. Individuals with BD reported higher frequencies of total FC as well as craving for fat and fast food than HC. Additionally, we found a significant negative correlation between FC and ghrelin levels in BD. Smokers with BD reported significantly more craving for high fat foods than non-smokers. Age was significantly associated with FC independent of group. Individuals with BD taking olanzapine and quetiapine reported higher frequencies of craving for sweet food, while patients currently taking lithium reported less total FC compared to those without lithium therapy. Likewise, patients currently taking valproate reported less total FC and less craving for sweets than those not taking valproate. FC appears to be of clinical relevance in individuals with BD. Contrary to previous data, this does not seem to be a female phenomenon only and might encompass more than the specific craving for carbohydrates. Although due to the cross sectional design, causality cannot be determined, the association between depressive symptomatology and fast food craving warrants further research.
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Affiliation(s)
- Martina Platzer
- Department of Psychiatry and Psychotherapeutic Medicine, Medical University of Graz, 8036 Graz, Austria
| | - Frederike T Fellendorf
- Department of Psychiatry and Psychotherapeutic Medicine, Medical University of Graz, 8036 Graz, Austria
| | - Susanne A Bengesser
- Department of Psychiatry and Psychotherapeutic Medicine, Medical University of Graz, 8036 Graz, Austria
| | - Armin Birner
- Department of Psychiatry and Psychotherapeutic Medicine, Medical University of Graz, 8036 Graz, Austria
| | - Nina Dalkner
- Department of Psychiatry and Psychotherapeutic Medicine, Medical University of Graz, 8036 Graz, Austria
| | - Carlo Hamm
- Department of Psychiatry and Psychotherapeutic Medicine, Medical University of Graz, 8036 Graz, Austria
| | - Melanie Lenger
- Department of Psychiatry and Psychotherapeutic Medicine, Medical University of Graz, 8036 Graz, Austria
| | - Alexander Maget
- Department of Psychiatry and Psychotherapeutic Medicine, Medical University of Graz, 8036 Graz, Austria
| | - René Pilz
- Department of Psychiatry and Psychotherapeutic Medicine, Medical University of Graz, 8036 Graz, Austria
| | - Robert Queissner
- Department of Psychiatry and Psychotherapeutic Medicine, Medical University of Graz, 8036 Graz, Austria
| | - Bernd Reininghaus
- Department of Psychiatry and Psychotherapeutic Medicine, Medical University of Graz, 8036 Graz, Austria
| | - Alexandra Reiter
- Department of Psychiatry and Psychotherapeutic Medicine, Medical University of Graz, 8036 Graz, Austria
| | - Harald Mangge
- Research Unit on Lifestyle and Inflammation-Associated Risk Biomarkers, Clinical Institute of Medical and Chemical Laboratory Diagnostics, Medical University of Graz, 8036 Graz, Austria
| | - Sieglinde Zelzer
- Research Unit on Lifestyle and Inflammation-Associated Risk Biomarkers, Clinical Institute of Medical and Chemical Laboratory Diagnostics, Medical University of Graz, 8036 Graz, Austria
| | - Hans-Peter Kapfhammer
- Department of Psychiatry and Psychotherapeutic Medicine, Medical University of Graz, 8036 Graz, Austria
| | - Eva Z Reininghaus
- Department of Psychiatry and Psychotherapeutic Medicine, Medical University of Graz, 8036 Graz, Austria
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6
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Bou Khalil R, Atallah E, Dirani E, Kallab M, Kassab A, Mourad M, El Khoury R. Can atypical dysgeusia in depression be related to a deafferentation syndrome? Med Hypotheses 2020; 144:110047. [DOI: 10.1016/j.mehy.2020.110047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2020] [Revised: 06/23/2020] [Accepted: 06/25/2020] [Indexed: 11/25/2022]
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Abstract
Until now, depression research has taken a surprisingly narrow approach to modelling the disease, mainly focusing on some form of psychomotor retardation within a mechanistic framework of depression etiology. However, depression has many symptoms and each is associated with a vast number of substrates. Thus, to deepen our insights, this SI ("Depression Symptoms") reviewed the behavioral and neurobiological sequelae of individual symptoms, specifically, psychomotor retardation, sadness, low motivation, fatigue, sleep/circadian disruption, weight/appetite changes, and cognitive affective biases. This manuscript aims to integrate the most central information provided by the individual reviews. As a result, a dynamic model of depression development is proposed, which views depression as a cumulative process, where different symptoms develop at different stages, referred to as early, intermediate, and advanced, that require treatment with different pharmaceutical agents, that is, selective serotonin reuptake inhibitors early on and dopamine-based antidepressants at the advanced stage. Furthermore, the model views hypothalamic disruption as the source of early symptoms and site of early intervention. Longitudinal animal models that are capable of modelling the different stages of depression, including transitions between the stages, may be helpful to uncover novel biomarkers and treatment approaches.
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Affiliation(s)
- Daniela Schulz
- Boğaziçi University, Institute of Biomedical Engineering, Center for Life Sciences and Technologies, Kandilli Campus, 34684 Istanbul, Turkey.
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8
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Venditti C, Musa-Veloso K, Lee HY, Poon T, Mak A, Darch M, Juana J, Fronda D, Noori D, Pateman E, Jack M. Determinants of Sweetness Preference: A Scoping Review of Human Studies. Nutrients 2020; 12:nu12030718. [PMID: 32182697 PMCID: PMC7146214 DOI: 10.3390/nu12030718] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Revised: 02/26/2020] [Accepted: 03/04/2020] [Indexed: 11/16/2022] Open
Abstract
Factors associated with sweetness preference are multi-faceted and incredibly complex. A scoping review was undertaken to identify determinants of sweetness preference in humans. Using an online search tool, ProQuest ™, a total of 99 publications were identified and subsequently grouped into the following categories of determinants: Age, dietary factors, reproductive hormonal factors, body weight status, heritable, weight loss, sound, personality, ethnicity and lifestyle, previous exposure, disease, and 'other' determinants. Methodologies amongst studies were heterogenous in nature (e.g., there was variability across studies in the sweetness concentrations tested, the number of different sweetness concentrations used to assess sweetness preference, and the methods utilized to measure sweetness preference), rendering interpretation of overall findings challenging; however, for certain determinants, the evidence appeared to support predictive capacity of greater sweetness preference, such as age during certain life-stages (i.e., young and old), being in a hungry versus satiated state, and heritable factors (e.g., similar sweetness preferences amongst family members). Recommendations for the design of future studies on sweetness preference determinants are provided herein, including an "investigator checklist" of criteria to consider.
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Affiliation(s)
- Carolina Venditti
- Intertek Health Sciences, Inc., Suite 201, 2233 Argentia Road, Mississauga, ON L5N 2X7, Canada
- Correspondence:
| | - Kathy Musa-Veloso
- Intertek Health Sciences, Inc., Suite 201, 2233 Argentia Road, Mississauga, ON L5N 2X7, Canada
| | - Han Youl Lee
- Intertek Health Sciences, Inc., Suite 201, 2233 Argentia Road, Mississauga, ON L5N 2X7, Canada
| | - Theresa Poon
- Intertek Health Sciences, Inc., Suite 201, 2233 Argentia Road, Mississauga, ON L5N 2X7, Canada
| | - Alastair Mak
- Intertek Health Sciences, Inc., Suite 201, 2233 Argentia Road, Mississauga, ON L5N 2X7, Canada
| | - Maryse Darch
- Intertek Health Sciences, Inc., Suite 201, 2233 Argentia Road, Mississauga, ON L5N 2X7, Canada
| | - Justine Juana
- Intertek Health Sciences, Inc., Suite 201, 2233 Argentia Road, Mississauga, ON L5N 2X7, Canada
| | - Dylan Fronda
- Intertek Health Sciences, Inc., Suite 201, 2233 Argentia Road, Mississauga, ON L5N 2X7, Canada
| | - Daniel Noori
- Intertek Health Sciences, Inc., Suite 201, 2233 Argentia Road, Mississauga, ON L5N 2X7, Canada
| | - Erika Pateman
- Intertek Health Sciences, Inc., Suite 201, 2233 Argentia Road, Mississauga, ON L5N 2X7, Canada
| | - Maia Jack
- American Beverage Association, Science and Regulatory Affairs, 1275 Pennsylvania Ave. NW, Washington, DC 200042, USA
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Yang Q, Kraft M, Shen Y, MacFie H, Ford R. Sweet Liking Status and PROP Taster Status impact emotional response to sweetened beverage. Food Qual Prefer 2019. [DOI: 10.1016/j.foodqual.2019.02.016] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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11
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Iatridi V, Hayes JE, Yeomans MR. Quantifying Sweet Taste Liker Phenotypes: Time for Some Consistency in the Classification Criteria. Nutrients 2019; 11:E129. [PMID: 30634558 PMCID: PMC6357166 DOI: 10.3390/nu11010129] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Revised: 01/03/2019] [Accepted: 01/04/2019] [Indexed: 12/17/2022] Open
Abstract
Taste hedonics is a well-documented driver of food consumption. The role of sweetness in directing ingestive behavior is largely rooted in biology. One can then intuit that individual differences in sweet-liking may constitute an indicator of variations in the susceptibility to diet-related health outcomes. Despite half a century of research on sweet-liking, the best method to identify the distinct responses to sweet taste is still debated. To help resolve this issue, liking and intensity ratings for eight sucrose solutions ranging from 0 to 1 M were collected from 148 young adults (29% men). Hierarchical cluster analysis (HCA) revealed three response patterns: a sweet-liker (SL) phenotype characterized by a rise in liking as concentration increased, an inverted U-shaped phenotype with maximum liking at 0.25 M, and a sweet-disliker (SD) phenotype characterized by a decline in liking as a function of concentration. Based on sensitivity and specificity analyses, present data suggest the clearest discrimination between phenotypes is seen with 1.0 M sucrose, where a liking rating between -15 and +15 on a -50/+50 scale reliably distinguished individuals with an inverted U-shaped response from the SLs and the SDs. If the efficacy of this approach is confirmed in other populations, the discrimination criteria identified here can serve as the basis for a standard method for classifying sweet taste liker phenotypes in adults.
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Affiliation(s)
| | - John E Hayes
- Department of Food Science, College of Agricultural Sciences, The Pennsylvania State University, University Park, PA 16802, USA.
- Sensory Evaluation Center, College of Agricultural Sciences, The Pennsylvania State University, University Park, PA 16802, USA.
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EGb761 attenuates depressive-like behaviours induced by long-term light deprivation in C57BL/6J mice through inhibition of NF-κB-IL-6 signalling pathway. Cent Eur J Immunol 2017; 41:350-357. [PMID: 28450797 PMCID: PMC5382876 DOI: 10.5114/ceji.2016.63807] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2015] [Accepted: 09/02/2015] [Indexed: 02/06/2023] Open
Abstract
Our previous investigation found that Ginkgo extract EGb761 could attenuate the depressive-like behaviours induced by a single injection of lipopolysaccharide in mice. However, it has not been investigated whether EGb761 is effective on depressive-like behaviours induced by long-term light deprivation and whether its effects are associated with the inhibition of NF-κB-IL-6 signalling pathway. In this study, three groups (vehicle group, EGb761 low-dose group, and EGb761 high-dose group) of C57BL/6J male mice were exposed to constant darkness for four weeks. The control mice remained on a 12 : 12 light-dark cycle. Depressive-like behaviours were evaluated by tail suspension test (TST), forced swim test (FST), and sucrose preference test (SPT). Spontaneous locomotor activity was evaluated by open field test (OFT). Levels of IL-6, IL-6 mRNA, NF-κB p65, phospho-NF-κB p65, IκBα, and phospho-IκBα were measured using Elisa, western blotting, or PCR assays. NF-κB p65 DNA binding activity was evaluated using Chemi Transcription Factor Assay Kit. Results showed long-term light deprivation prolonged the immobile time in TST and FST, shortened the latency to immobility in FST, reduced spontaneous locomotor activity in OFT, decreased sucrose preference in SPT, and increased levels of IL-6, IL-6 mRNA, NF-κB p65, phospho-NF-κB p65, and phospho-IκBα in hippocampal tissue. EGb761 dose-dependently reversed the changes of the above parameters induced by long-term light deprivation, without affecting spontaneous locomotor activity. We conclude that EGb761 could attenuate the depressive-like behaviours and inhibit the NF-κB-IL-6 signalling pathway in a light-deprivation-induced mouse model of depression.
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Schulz D, Henn FA, Petri D, Huston JP. Rats bred for helplessness exhibit positive reinforcement learning deficits which are not alleviated by an antidepressant dose of the MAO-B inhibitor deprenyl. Neuroscience 2016; 329:83-92. [DOI: 10.1016/j.neuroscience.2016.04.049] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2016] [Revised: 04/16/2016] [Accepted: 04/29/2016] [Indexed: 01/14/2023]
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