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Henríquez Martínez A, Ávila LC, Pulido MA, Ardila YA, Akle V, Bloch NI. Age-Dependent Effects of Chronic Stress on Zebrafish Behavior and Regeneration. Front Physiol 2022; 13:856778. [PMID: 35574490 PMCID: PMC9106366 DOI: 10.3389/fphys.2022.856778] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Accepted: 04/05/2022] [Indexed: 11/13/2022] Open
Abstract
Stress can have a significant impact on many aspects of an organism’s physiology and behavior. However, the relationship between stress and regeneration, and how this relationship changes with age remains poorly understood. Here, we subjected young and old zebrafish to a chronic stress protocol and evaluated the impact of stress exposure on multiple measures of zebrafish behavior, specifically thigmotaxis (open field test) and scototaxis (light/dark preference test), and on regeneration ability after partial tail amputation. We found evidence that young and older adult fish are differentially impacted by stress. Only young fish showed a significant change in anxiety-like behaviors after being exposed to chronic stress, while their regeneration ability was not affected by the stress protocol. On the other hand, older fish regenerated their caudal fin significantly slower compared to young fish, but their behavior remained unaffected after being exposed to stress. We further investigated the expression of two candidate genes (nlgn1 and sam2) expressed in the central nervous system, and known to be associated with stress and anxiety-like behavior. The expression of stress-related gene candidate sam2 increased in the brain of older individuals exposed to stress. Our results suggest there is a close relationship between chronic stress, regeneration, and behavior in zebrafish (Danio rerio), and that the impact of stress is age-dependent.
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Affiliation(s)
- Angie Henríquez Martínez
- Department of Biomedical Engineering, University of Los Andes, Bogotá, Colombia
- School of Medicine, University of Los Andes, Bogotá, Colombia
| | - Laura C. Ávila
- Department of Biomedical Engineering, University of Los Andes, Bogotá, Colombia
- School of Medicine, University of Los Andes, Bogotá, Colombia
| | - María A. Pulido
- School of Medicine, University of Los Andes, Bogotá, Colombia
| | | | - Veronica Akle
- School of Medicine, University of Los Andes, Bogotá, Colombia
| | - Natasha I. Bloch
- Department of Biomedical Engineering, University of Los Andes, Bogotá, Colombia
- *Correspondence: Natasha I. Bloch,
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Saade YM, Nicol G, Lenze EJ, Miller JP, Yingling M, Wetherell JL, Reynolds CF, Mulsant BH. Comorbid anxiety in late-life depression: Relationship with remission and suicidal ideation on venlafaxine treatment. Depress Anxiety 2019; 36:1125-1134. [PMID: 31682328 PMCID: PMC6891146 DOI: 10.1002/da.22964] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Revised: 07/14/2019] [Accepted: 09/13/2019] [Indexed: 02/05/2023] Open
Abstract
OBJECTIVE The purpose of this study was to examine the influence of comorbid anxiety symptoms on antidepressant treatment remission in older adults with major depressive disorder (MDD). METHOD In this multisite clinical trial, 468 older adults aged 60 years or older with MDD received open-label protocolized treatment with venlafaxine extended release (ER) titrated to a maximum of 300 mg daily. At baseline, anxiety was assessed with the Anxiety Sensitivity Index, the Brief Symptom Inventory (BSI) anxiety subscale, and the Penn State Worry Questionnaire. To measure treatment response, depressive symptoms and suicidality were assessed every 1-2 weeks with the Montgomery-Asberg Depression Rating Scale and the 19-item Scale for Suicide Ideation; anxiety was assessed with the BSI. Logistic regression and survival analysis were used to evaluate whether anxiety symptoms predicted depression remission. We also examined the relationships between anxiety scores and suicidality at baseline. RESULTS Baseline anxiety symptoms did not predict remission or time to remission of depressive symptoms. Depressive, worry, and panic symptoms decreased in parallel in patients with high anxiety. Anxiety symptoms were associated with the severity of depression and with suicidality. CONCLUSION In older adults with MDD, comorbid anxiety symptoms are associated with symptom severity but do not affect antidepressant remission or time to remission.
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Affiliation(s)
- Yasmina M Saade
- Washington University, St Louis, Missouri (Department of Psychiatry, 660 S. Euclid Box 8134, St Louis, MO 63110
| | - Ginger Nicol
- Washington University, St Louis, Missouri (Department of Psychiatry, 660 S. Euclid Box 8134, St Louis, MO 63110
| | - Eric J Lenze
- Washington University, St Louis, Missouri (Department of Psychiatry, 660 S. Euclid Box 8134, St Louis, MO 63110
| | - J Philip Miller
- Division of Biostatistics, Washington University in St. Louis, St. Louis, MO
| | - Michael Yingling
- Washington University, St Louis, Missouri (Department of Psychiatry, 660 S. Euclid Box 8134, St Louis, MO 63110
| | - Julie Loebach Wetherell
- VA San Diego Healthcare System, San Diego, CA, USA; Department of Psychiatry, University of California, San Diego, La Jolla, CA, USA
| | - Charles F Reynolds
- Department of Psychiatry, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Benoit H Mulsant
- Centre for Addiction and Mental Health, Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada
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Zwanzger P, Yassouridis A, Pfleiderer B. 'Acute shift in glutamate-concentrations following experimentally induced panic with cholecystokinin-tetrapeptide-a 3T-MRS study in healthy subjects'-a reply to the letter to the editor. Neuropsychopharmacology 2014; 39:2707-8. [PMID: 24939760 PMCID: PMC4207332 DOI: 10.1038/npp.2014.104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Peter Zwanzger
- Mood and Anxiety Disorders Research Unit, Department of Psychiatry and Psychotherapy, University of Muenster, Muenster, Germany,kbo-Inn-Salzach-Hospital, Wasserburg, Germany,Mood and Anxiety Disorders Research Unit, Department of Psychiatry and Psychotherapy, University of Muenster, Muenster, Germany or kbo-Inn-Salzach-Hospital Wasserburg am Inn, Gabersee 7, Wasserburg, Germany, Tel: +49 8071 71 300, Fax: +49 8171 71 318, E-mail:
| | | | - Bettina Pfleiderer
- Department of Clinical Radiology, University of Muenster, Muenster, Germany
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Zhou L, Yang H, Okoro EU, Guo Z. Up-regulation of cholesterol absorption is a mechanism for cholecystokinin-induced hypercholesterolemia. J Biol Chem 2014; 289:12989-99. [PMID: 24692543 DOI: 10.1074/jbc.m113.534388] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Excessive absorption of intestinal cholesterol is a risk factor for atherosclerosis. This report examines the effect of cholecystokinin (CCK) on plasma cholesterol level and intestinal cholesterol absorption using the in vivo models of C57BL/6 wild-type and low density lipoprotein receptor knock-out (LDLR(-/-)) mice. These data were supported by in vitro studies involving mouse primary intestinal epithelial cells and human Caco-2 cells; both express CCK receptor 1 and 2 (CCK1R and CCK2R). We found that intravenous injection of [Thr(28),Nle(31)]CCK increased plasma cholesterol levels and intestinal cholesterol absorption in both wild-type and LDLR(-/-) mice. Treatment of mouse primary intestinal epithelial cells with [Thr(28),Nle(31)]CCK increased cholesterol absorption, whereas selective inhibition of CCK1R and CCK2R with antagonists attenuated CCK-induced cholesterol absorption. In Caco-2 cells, CCK enhanced CCK1R/CCK2R heterodimerization. Knockdown of both CCK1R and CCK2 or either one of them diminished CCK-induced cholesterol absorption to the same extent. CCK also increased cell surface-associated NPC1L1 (Niemann-Pick C1-like 1) transporters but did not alter their total protein expression. Inhibition or knockdown of NPC1L1 attenuated CCK-induced cholesterol absorption. CCK enhanced phosphatidylinositide 3-kinase (PI3K) and Akt phosphorylation and augmented the interaction between NPC1L1 and Rab11a (Rab-GTPase-11a), whereas knockdown of CCK receptors or inhibition of G protein βγ dimer (Gβγ) diminished CCK-induced PI3K and Akt phosphorylation. Inhibition of PI3K and Akt or knockdown of PI3K diminished CCK-induced NPC1L1-Rab11a interaction and cholesterol absorption. Knockdown of Rab11a suppressed CCK-induced NPC1L1 translocation and cholesterol absorption. These data imply that CCK enhances cholesterol absorption by activation of a pathway involving CCK1R/CCK2R, Gβγ, PI3K, Akt, Rab11a, and NPC1L.
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Affiliation(s)
- LiChun Zhou
- From the Department of Physiology, Meharry Medical College, Nashville, Tennessee 37208
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Zhou L, Yang H, Lin X, Okoro EU, Guo Z. Cholecystokinin elevates mouse plasma lipids. PLoS One 2012; 7:e51011. [PMID: 23300532 PMCID: PMC3533889 DOI: 10.1371/journal.pone.0051011] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2012] [Accepted: 10/29/2012] [Indexed: 11/18/2022] Open
Abstract
Cholecystokinin (CCK) is a peptide hormone that induces bile release into the intestinal lumen which in turn aids in fat digestion and absorption in the intestine. While excretion of bile acids and cholesterol into the feces eliminates cholesterol from the body, this report examined the effect of CCK on increasing plasma cholesterol and triglycerides in mice. Our data demonstrated that intravenous injection of [Thr28, Nle31]-CCK at a dose of 50 ng/kg significantly increased plasma triglyceride and cholesterol levels by 22 and 31%, respectively, in fasting low-density lipoprotein receptor knockout (LDLR−/−) mice. The same dose of [Thr28, Nle31]-CCK induced 6 and 13% increases in plasma triglyceride and cholesterol, respectively, in wild-type mice. However, these particular before and after CCK treatment values did not achieve statistical significance. Oral feeding of olive oil further elevated plasma triglycerides, but did not alter plasma cholesterol levels in CCK-treated mice. The increased plasma cholesterol in CCK-treated mice was distributed in very-low, low and high density lipoproteins (VLDL, LDL and HDL) with less of an increase in HDL. Correspondingly, the plasma apolipoprotein (apo) B48, B100, apoE and apoAI levels were significantly higher in the CCK-treated mice than in untreated control mice. Ligation of the bile duct, blocking CCK receptors with proglumide or inhibition of Niemann-Pick C1 Like 1 transporter with ezetimibe reduced the hypercholesterolemic effect of [Thr28, Nle31]-CCK in LDLR−/− mice. These findings suggest that CCK-increased plasma cholesterol and triglycerides as a result of the reabsorption of biliary lipids from the intestine.
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Affiliation(s)
- Lichun Zhou
- Department of Physiology, Meharry Medical College, Nashville, Tennessee, United States of America
| | - Hong Yang
- Department of Physiology, Meharry Medical College, Nashville, Tennessee, United States of America
| | - Xinghua Lin
- Department of Physiology, Meharry Medical College, Nashville, Tennessee, United States of America
| | - Emmanuel U. Okoro
- Department of Physiology, Meharry Medical College, Nashville, Tennessee, United States of America
| | - Zhongmao Guo
- Department of Physiology, Meharry Medical College, Nashville, Tennessee, United States of America
- * E-mail:
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Abstract
Neurodevelopmental changes over the lifespan, from childhood through adulthood into old age, have important implications for the onset, presentation, course, and treatment of anxiety disorders. This article presents data on anxiety disorders as they appear in older adults, as compared with earlier in life. In this article, we focus on aging-related changes in the epidemiology, presentation, and treatment of anxiety disorders. Also, this article describes some of the gaps and limitations in our understanding and suggests research directions that may elucidate the mechanisms of anxiety disorder development later in life. Finally we describe optimal management of anxiety disorders across the lifespan, in "eight simple steps" for practitioners.
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Affiliation(s)
- Eric J Lenze
- Department of Psychiatry, Washington University School of Medicine, St. Louis, Missouri, USA.
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