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Li X, Xiao D, Li C, Wu T, Li L, Li T, Pan X, Liu Q, Chi M, Li R, Jiao Y, Li P. Lavender essential oil alleviates depressive-like behavior in alcohol-withdrawn rats: Insights from gut metabolites and hippocampal transcriptome analysis. Biomed Pharmacother 2024; 176:116835. [PMID: 38810402 DOI: 10.1016/j.biopha.2024.116835] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2024] [Revised: 05/16/2024] [Accepted: 05/26/2024] [Indexed: 05/31/2024] Open
Abstract
Lavender, an aromatic plant with a history dating back to ancient Egypt and Greece, is consumed because of its diverse pharmacological properties, including sedation, sleep aid, and antidepressant effects. However, the mechanisms underlying these antidepressant properties remain unclear. In this study, we explored the impact of lavender essential oil (LEO) inhalation on the diversity of gut microbiota, metabolites, and differential gene expression in the hippocampus of alcohol-withdrawn depressive rats. Additionally, we examined alterations in the hippocampal transient receptor potential (TRP) channel-mediated inflammatory regulation within the brain-gut axis of depressive rats. The results demonstrated a significant decrease in sucrose preference, diminished activity in the central zone of the open field test, and prolonged immobility time in the forced swim test in alcohol-withdrawn depressive rats, indicating the amelioration of depressive states following lavender essential oil inhalation. 16 S rDNA sequencing analysis revealed a significant reduction in Bacteroidota and Muribaculaceae in the gut of alcohol-withdrawn depressive rats, whereas lavender essential oil significantly increased the relative abundance of Muribaculaceae and other bacterial species. Metabolomic analysis identified 646 distinct metabolites as highly correlated biomarkers between the model and lavender essential oil groups. Furthermore, lavender essential oil inhalation significantly attenuated hippocampal inflammatory factors IL-2, IL-6, IL-1β, and TNF-α. This study identified elevated expression of Trpv4 and Calml4 in the hippocampal region of alcohol-withdrawn depressed rats and showed that lavender essential oil inhalation regulated aberrantly expressed genes. Our research suggests that lavender essential oil downregulates Trpv4, modulates inflammatory factors, and alleviates depressive-like behavior in alcohol withdrawal rats.
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Affiliation(s)
- Xin Li
- Department of Psychiatry, The Fourth Affiliated Hospital of Qiqihar Medical University, Qiqihar, Heilongjiang, China
| | - Dan Xiao
- School of Medicine and Health, Harbin Institute of Technology, Harbin, Heilongjiang, China; Department of Medicine and Health, Zhengzhou Research Institute of Harbin Institute of Technology, Zheng Zhou, He Nan, China
| | - Chengchong Li
- Department of Psychiatry, Qiqihar Medical University, Qiqihar, Heilongjiang, China
| | - Tong Wu
- Department of Psychiatry, Qiqihar Medical University, Qiqihar, Heilongjiang, China
| | - Libo Li
- Department of Psychiatry, Qiqihar Medical University, Qiqihar, Heilongjiang, China
| | - Tong Li
- Department of Psychiatry, Qiqihar Medical University, Qiqihar, Heilongjiang, China
| | - Xin Pan
- The Third Hospital of Heilongjiang Province, Bei An, Heilongjiang, China
| | - Qi Liu
- The Research Institute of Medicine and Pharmacy, Qiqihar Medical University, Qiqihar, Heilongjiang, China
| | - Minghe Chi
- Department of Psychiatry, Qiqihar Medical University, Qiqihar, Heilongjiang, China
| | - Runze Li
- School of Medicine and Health, Harbin Institute of Technology, Harbin, Heilongjiang, China
| | - Yu Jiao
- Department of Psychiatry, Qiqihar Medical University, Qiqihar, Heilongjiang, China.
| | - Ping Li
- Department of Psychiatry, Qiqihar Medical University, Qiqihar, Heilongjiang, China.
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Díaz-Cantón JK, Torres-Ramos MA, Limón-Morales O, León-Santiago M, Rivero-Segura NA, Tapia-Mendoza E, Guzmán-Gutiérrez SL, Reyes-Chilpa R. Inhaled Litsea glaucescens K. (Lauraceae) leaves' essential oil has anxiolytic and antidepressant-like activity in mice by BDNF pathway activation. JOURNAL OF ETHNOPHARMACOLOGY 2024; 321:117489. [PMID: 38012973 DOI: 10.1016/j.jep.2023.117489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Revised: 11/17/2023] [Accepted: 11/21/2023] [Indexed: 11/29/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Litsea glaucescens K. (Lauraceae) is a small tree from the Mexican and Central American temperate forests, named as "Laurel". Its aromatic leaves are ordinarily consumed as condiments, but also are important in Mexican Traditional Medicine, and among the most important non wood forest products in this area. The leaves are currently used in a decoction for the relief of sadness by the Mazahua ethnic group. Interestingly, "Laurel" has a long history. It was named as "Ehecapahtli" (wind medicine) in pre-Columbian times and applied to heal maladies correlated to the Central Nervous System, among them depression, according to botanical texts written in the American Continent almost five centuries ago. AIM OF THE STUDY Depression is the first cause of incapacity in the world, and society demands alternative treatments, including aromatherapy. We have previously demonstrated the antidepressant-like activity of L. glaucescens leaves' essential oil (LEO), as well as their monoterpenes linalool, and beta-pinene by intraperitoneal route in a mice behavioral model. Here we now examined if LEO and linalool exhibit this property and anxiolytic activity when administered to mice by inhalation. We also investigated if these effects occur by BDNF pathway activation in the brain. MATERIALS AND METHODS The LEO was prepared by distillation with water steam and analyzed by gas chromatography-mass spectrometry (GC-MS). The monoterpenes linalool, eucalyptol and β-pinene were identified and quantified. Antidepressant type properties were determined with the Forced Swim Test (FST) on mice previously exposed to LEO or linalool in an inhalation chamber. The spontaneous locomotor activity and the sedative effect were assessed with the Open Field Test (OFT), and the Exploratory Cylinder (EC), respectively. The anxiolytic properties were investigated with the Elevated Plus Maze Apparatus (EPM) and the Hole Board Test (HBT). All experiments were video documented. The mice were subjected to euthanasia, and the brain hippocampus and prefrontal cortex were dissected. RESULTS The L. glaucescens essential oil (LEO) contains 31 compounds according to GC/MS, including eucalyptol, linalool and beta-pinene. The LEO has anxiolytic effect by inhalation in mice, as well as linalool, and β-pinene, as indicated by OFT and EC tests. The LEO and imipramine have antidepressant like activity in mice as revealed by the FST; however, linalool and ketamine treatments didn't modify the time of immobility. The BDNF was increased in FST in mice treated with LEO in both areas of the brain as revealed by Western blot; but did not decrease the level of corticosterone in plasma. The OFT indicated that LEO and imipramine didn't reduce the spontaneous motor activity, while linalool and ketamine caused a significant decrease. CONCLUSION Here we report by the first time that L. glaucescens leaves essential oil has anxiolytic effect by inhalation in mice, as well as linalool, and β-pinene. This oil also maintains its antidepressant-like activity by this administration way, similarly to the previously determined intraperitoneally. Since inhalation is a common administration route for humans, our results suggest L. glaucescens essential oil deserve future investigation due to its potential application in aromatherapy.
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Affiliation(s)
- J K Díaz-Cantón
- Instituto de Química, Universidad Nacional Autónoma de México, Ciudad Universitaria, Av. Universidad 3000, Circuito Exterior S/N, Coyoacán, C.P. 04510, Ciudad de México, México; Posgrado en Ciencias Biológicas, Universidad Nacional Autónoma de México, México
| | - M A Torres-Ramos
- Dirección de Investigación. Instituto Nacional de Neurología y Neurocirugía Manuel Velasco Suárez, Av. Insurgentes Sur 3877, La Fama, Tlalpan, 14269 Ciudad de México, México
| | - O Limón-Morales
- Departamento de Biología de la Reproducción, División de Ciencias Biológicas y de la Salud, Universidad Autónoma Metropolitana-Iztapalapa, Av. San Rafael Atlixco 186, Leyes de Reforma 1ra Secc, Iztapalapa, Ciudad de México, 09340, México
| | - M León-Santiago
- Instituto de Química, Universidad Nacional Autónoma de México, Ciudad Universitaria, Av. Universidad 3000, Circuito Exterior S/N, Coyoacán, C.P. 04510, Ciudad de México, México
| | - N A Rivero-Segura
- Dirección de Investigación, Instituto Nacional de Geriatría (INGER), Blvd. Adolfo Ruiz Cortines 2767, Mexico City 10200, México
| | - E Tapia-Mendoza
- Instituto de Química, Universidad Nacional Autónoma de México, Ciudad Universitaria, Av. Universidad 3000, Circuito Exterior S/N, Coyoacán, C.P. 04510, Ciudad de México, México
| | - S L Guzmán-Gutiérrez
- CONAHCyT-Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Av. Universidad 3000, Circuito Escolar S/N, Coyoacán, C.P. 04510, Ciudad Universitaria, Ciudad de México, México.
| | - R Reyes-Chilpa
- Instituto de Química, Universidad Nacional Autónoma de México, Ciudad Universitaria, Av. Universidad 3000, Circuito Exterior S/N, Coyoacán, C.P. 04510, Ciudad de México, México.
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LEJEUNE VBP, LOPES RV, BAGGIO DF, KOREN LDO, ZANOVELI JM, CHICHORRO JG. Antinociceptive and anxiolytic-like effects of Lavandula angustifolia essential oil on rat models of orofacial pain. J Appl Oral Sci 2023; 30:e20220304. [PMID: 36629536 PMCID: PMC9828878 DOI: 10.1590/1678-7757-2002-0304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Accepted: 11/10/2022] [Indexed: 01/11/2023] Open
Abstract
BACKGROUND Nociceptive and inflammatory orofacial pain is highly prevalent in the population, which justifies the search for safer analgesics. There is increasing evidence of the analgesic and anxiolytic potential of Lavandula angustifolia essential oil (LAV EO), which may represent, when administered through inhalation, may represent a safer alternative for pain treatment. OBJECTIVE to evaluate whether LAV EO has antinociceptive effect in the formalin test, and anti-hyperalgesic and anxiolytic-like effects in rats subjected to a model of orofacial postoperative pain. METHODOLOGY Female Wistar rats were exposed to LAV EO (5%) by inhalation for 30 minutes. After exposure, animals were injected with formalin (2.5%, 50 μL) or saline into the hind paw or upper lip and the number of flinches or facial grooming time, respectively, were evaluated. Likewise, on day 3 after intraoral mucosa incision, the animals were exposed to LAV EO and facial mechanical, and heat hyperalgesia were assessed. The influence of LAV EO inhalation on anxiety-like behavior was assessed in operated rats by testing them on the open field (OF) and elevated plus maze (EPM). RESULTS LAV EO reduced the phase II of the paw formalin test and both phases of the orofacial formalin test. On day three post-incision, LAV EO reduced heat and mechanical hyperalgesia, from 30 minutes up to three hours, and reduced the anxiety-like behavior in operated rats without causing locomotor deficit. CONCLUSION LAV EO inhalation results in antinociceptive and anxiolytic-like effects in orofacial pain models, which encourages further studies on LAV EO indications and effectiveness on orofacial pain conditions.
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Affiliation(s)
- Vanessa Bordenowsky Pereira LEJEUNE
- Universidade Federal do ParanáDepartamento de FarmacologiaCuritibaParanáBrasilUniversidade Federal do Paraná (UFPR), Setor de Ciências Biológicas, Departamento de Farmacologia, Curitiba, Paraná, Brasil.
| | - Raphael Vieira LOPES
- Universidade Federal do ParanáDepartamento de FarmacologiaCuritibaParanáBrasilUniversidade Federal do Paraná (UFPR), Setor de Ciências Biológicas, Departamento de Farmacologia, Curitiba, Paraná, Brasil.
| | - Darciane Favero BAGGIO
- Universidade Federal do ParanáDepartamento de FarmacologiaCuritibaParanáBrasilUniversidade Federal do Paraná (UFPR), Setor de Ciências Biológicas, Departamento de Farmacologia, Curitiba, Paraná, Brasil.
| | - Laura de Oliveira KOREN
- Universidade Federal do ParanáDepartamento de FarmacologiaCuritibaParanáBrasilUniversidade Federal do Paraná (UFPR), Setor de Ciências Biológicas, Departamento de Farmacologia, Curitiba, Paraná, Brasil.
| | - Janaina Menezes ZANOVELI
- Universidade Federal do ParanáDepartamento de FarmacologiaCuritibaParanáBrasilUniversidade Federal do Paraná (UFPR), Setor de Ciências Biológicas, Departamento de Farmacologia, Curitiba, Paraná, Brasil.
| | - Juliana Geremias CHICHORRO
- Universidade Federal do ParanáDepartamento de FarmacologiaCuritibaParanáBrasilUniversidade Federal do Paraná (UFPR), Setor de Ciências Biológicas, Departamento de Farmacologia, Curitiba, Paraná, Brasil.
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Nascimento JC, Gonçalves VS, Souza BR, Nascimento LDC, Carvalho BM, Ziegelmann PK, Goes TC, Guimarães AG. New approaches to the effectiveness of inhalation aromatherapy in controlling painful conditions: A systematic review with meta-analysis. Complement Ther Clin Pract 2022; 49:101628. [DOI: 10.1016/j.ctcp.2022.101628] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Revised: 06/16/2022] [Accepted: 06/26/2022] [Indexed: 11/03/2022]
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Akbar A, Prasetya PY. ARTICLE REVIEW: THE USE OF AROMATHERAPY FOR ANOSMIA PATIENTS DURING THE COVID-19 PANDEMIC. BIOLINK (JURNAL BIOLOGI LINGKUNGAN INDUSTRI KESEHATAN) 2022. [DOI: 10.31289/biolink.v9i1.6687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
This study was conducted to determine the benefits of aromatherapy for anosmia people after exposure to COVID-19. Aromatherapy was often used for health therapy so it has the potential for the treatment of anosmia. This study is necessary to be done because there are a lot of anosmia sufferers and there is no effective way to treat it. The study of post-COVID-19 anosmia continues to evolve and more needs to be researched. This study was conducted by reviewing several literature studies originating from international and national journals, theses, and dissertations with a year limit of the last 10 years. From some literature it is known that aromatherapy can reduce the risk caused by anosmia. Aromatherapy can enter through the body's circulatory system and olfactory system through fragrances, It will affect the condition, memory, and psyche of a person. Although not very effective, further research on the benefits of aromatherapy for people with anosmia is necessary.
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Cui J, Li M, Wei Y, Li H, He X, Yang Q, Li Z, Duan J, Wu Z, Chen Q, Chen B, Li G, Ming X, Xiong L, Qin D. Inhalation Aromatherapy via Brain-Targeted Nasal Delivery: Natural Volatiles or Essential Oils on Mood Disorders. Front Pharmacol 2022; 13:860043. [PMID: 35496310 PMCID: PMC9041268 DOI: 10.3389/fphar.2022.860043] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Accepted: 03/22/2022] [Indexed: 02/05/2023] Open
Abstract
Mood disorders, also often referred to as affective disorders, are a group of psychiatric illnesses that severely impact mood and its related functions. The high medical expenditures have placed a significant financial burden on patients and their families. Aromatherapy is an alternative and complementary treatment that utilizes essential oils (EOs) or volatile oils (VOs) to achieve major therapeutic goals. In general, EOs are volatile chemicals that enter the body primarily through skin absorption and/or nasal inhalation. In addition, they can work through oral administration. Inhalation aromatherapy has shown unique advantages for treating mood disorders, especially depression, anxiety and mental disorders such as sleep disorder, which have been validated over the last decade through clinical and animal studies. Accumulating evidence has shown that EOs or VOs can bypass the blood-brain barrier to target brain tissue through the nasal-brain pathway. Subsequently, they act on the cerebral cortex, thalamus, and limbic system in the brain to improve symptoms of anxiety, depression and improve sleep quality. Here, we review the natural aromatic plants’ volatiles or essential oils used commonly as adjuncts to manage mood disorders and illustrate the mechanisms of inhalation aromatherapy, and mainly summarized the application of transnasal inhalation aromatherapy in depression, anxiety, and sleep disorders. We conclude that aromatherapy does not cause side-effects, which is vastly different from commonly used psychotropic drugs. Inhalation aromatherapy via brain-targeted nasal delivery offers potentially efficacious treatment for mental disorders and merits further study.
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Affiliation(s)
- Jieqiong Cui
- School of Basic Medical Sciences, Yunnan University of Chinese Medicine, Kunming, China
| | - Meng Li
- School of Basic Medical Sciences, Yunnan University of Chinese Medicine, Kunming, China
| | - Yuanyuan Wei
- School of Basic Medical Sciences, Yunnan University of Chinese Medicine, Kunming, China
| | - Huayan Li
- School of Basic Medical Sciences, Yunnan University of Chinese Medicine, Kunming, China
| | - Xiying He
- School of Basic Medical Sciences, Yunnan University of Chinese Medicine, Kunming, China
| | - Qi Yang
- School of Basic Medical Sciences, Yunnan University of Chinese Medicine, Kunming, China
| | - Zhengkun Li
- School of Basic Medical Sciences, Yunnan University of Chinese Medicine, Kunming, China
| | - Jinfeng Duan
- School of Basic Medical Sciences, Yunnan University of Chinese Medicine, Kunming, China
| | - Zhao Wu
- School of Basic Medical Sciences, Yunnan University of Chinese Medicine, Kunming, China
| | - Qian Chen
- School of Basic Medical Sciences, Yunnan University of Chinese Medicine, Kunming, China
| | - Bojun Chen
- School of Basic Medical Sciences, Yunnan University of Chinese Medicine, Kunming, China
| | - Gang Li
- School of Basic Medical Sciences, Yunnan University of Chinese Medicine, Kunming, China
| | - Xi Ming
- Department of TCM Pediatrics, Yunnan Provincial Hospital of Traditional Chinese Medicine, Kunming, China
| | - Lei Xiong
- School of Basic Medical Sciences, Yunnan University of Chinese Medicine, Kunming, China
| | - Dongdong Qin
- School of Basic Medical Sciences, Yunnan University of Chinese Medicine, Kunming, China
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Allameh M, Orsat V. Herbal Anxiolytics: Sources and Their Preparation Methods. FOOD REVIEWS INTERNATIONAL 2022. [DOI: 10.1080/87559129.2022.2043895] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Mina Allameh
- Department of Bioresource Engineering, McGill University, Ste-Anne-de-Bellevue, Québec, Canada
| | - V. Orsat
- Department of Bioresource Engineering, McGill University, Ste-Anne-de-Bellevue, Québec, Canada
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Xie D, Yao L, Huang Y, Wu S, Ma L, Li Y, Wang W. Anxiolytic Effect of Two Tobacco Essential Oils ( Nicotiana tabacum Linn.) on Mice. Molecules 2021; 26:4171. [PMID: 34299447 PMCID: PMC8306096 DOI: 10.3390/molecules26144171] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2021] [Revised: 07/05/2021] [Accepted: 07/05/2021] [Indexed: 11/17/2022] Open
Abstract
Tobacco (Nicotiana tabacum Linn.) is a famous traditional herb used in folk medicine. The essential oils of tobacco have been demonstrated in modern studies to possess antioxidant, anti-inflammatory, and neuroprotective properties, while its anxiolytic effect has not been reported. The purpose of this study was to evaluate the anxiolytic effect of Yunnan tobacco essential oil (YTO) and Zimbabwe tobacco essential oil (ZTO) on mice. The constituents of YTO and ZTO were analyzed by GC/MS. The anxiolytic effect of YTO and ZTO (0.1%, 1%, and 10%, v/v) on male ICR mice was evaluated in the light-dark box test (LDB) and the elevated plus maze test (EPM) test via inhalation and transdermal administration. After the behavioral tests, salivary corticosterone levels in mice were measured. The behavioral analysis showed that the administration of both YTO and ZTO elevated the time that the mice spent in the light chamber in the LDB test compared to the untreated control. In the EPM test, YTO and ZTO increased the time spent in open arms and the number of entries into the open arms. In addition, both YTO and ZTO significantly decreased salivary corticosterone levels in mice (p ≤ 0.001). In summary, our results demonstrated that inhalation and transdermal administration of both YTO and ZTO showed anxiolytic effect on male ICR mice.
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Affiliation(s)
- Danqing Xie
- Department of Landscape Architecture, School of Design, Shanghai Jiao Tong University, 800 Dong Chuan Road, Shanghai 200240, China; (D.X.); (L.Y.); (L.M.)
- R&D Center for Aromatic Plants, Shanghai Jiao Tong University, 800 Dong Chuan Road, Shanghai 200240, China
| | - Lei Yao
- Department of Landscape Architecture, School of Design, Shanghai Jiao Tong University, 800 Dong Chuan Road, Shanghai 200240, China; (D.X.); (L.Y.); (L.M.)
- R&D Center for Aromatic Plants, Shanghai Jiao Tong University, 800 Dong Chuan Road, Shanghai 200240, China
| | - Yan Huang
- Huabao Flavours & Fragrances Co., Ltd., 1299 Yecheng Road, Shanghai 201821, China; (Y.H.); (S.W.)
| | - Shuaifan Wu
- Huabao Flavours & Fragrances Co., Ltd., 1299 Yecheng Road, Shanghai 201821, China; (Y.H.); (S.W.)
| | - Li Ma
- Department of Landscape Architecture, School of Design, Shanghai Jiao Tong University, 800 Dong Chuan Road, Shanghai 200240, China; (D.X.); (L.Y.); (L.M.)
- R&D Center for Aromatic Plants, Shanghai Jiao Tong University, 800 Dong Chuan Road, Shanghai 200240, China
| | - Yuhong Li
- Department of Landscape Architecture, School of Design, Shanghai Jiao Tong University, 800 Dong Chuan Road, Shanghai 200240, China; (D.X.); (L.Y.); (L.M.)
- R&D Center for Aromatic Plants, Shanghai Jiao Tong University, 800 Dong Chuan Road, Shanghai 200240, China
| | - Wencui Wang
- Department of Landscape Architecture, School of Design, Shanghai Jiao Tong University, 800 Dong Chuan Road, Shanghai 200240, China; (D.X.); (L.Y.); (L.M.)
- R&D Center for Aromatic Plants, Shanghai Jiao Tong University, 800 Dong Chuan Road, Shanghai 200240, China
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Wojtunik-Kulesza K, Rudkowska M, Kasprzak-Drozd K, Oniszczuk A, Borowicz-Reutt K. Activity of Selected Group of Monoterpenes in Alzheimer's Disease Symptoms in Experimental Model Studies-A Non-Systematic Review. Int J Mol Sci 2021; 22:7366. [PMID: 34298986 PMCID: PMC8306454 DOI: 10.3390/ijms22147366] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Revised: 07/05/2021] [Accepted: 07/06/2021] [Indexed: 12/19/2022] Open
Abstract
Alzheimer's disease (AD) is the leading cause of dementia and cognitive function impairment. The multi-faced character of AD requires new drug solutions based on substances that incorporate a wide range of activities. Antioxidants, AChE/BChE inhibitors, BACE1, or anti-amyloid platelet aggregation substances are most desirable because they improve cognition with minimal side effects. Plant secondary metabolites, used in traditional medicine and pharmacy, are promising. Among these are the monoterpenes-low-molecular compounds with anti-inflammatory, antioxidant, enzyme inhibitory, analgesic, sedative, as well as other biological properties. The presented review focuses on the pathophysiology of AD and a selected group of anti-neurodegenerative monoterpenes and monoterpenoids for which possible mechanisms of action have been explained. The main body of the article focuses on monoterpenes that have shown improved memory and learning, anxiolytic and sleep-regulating effects as determined by in vitro and in silico tests-followed by validation in in vivo models.
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Affiliation(s)
| | - Monika Rudkowska
- Independent Experimental Neuropathophysiology Unit, Medical University of Lublin, Jaczewskiego 8b, 20-090 Lublin, Poland; (M.R.); (K.B.-R.)
| | - Kamila Kasprzak-Drozd
- Department of Inorganic Chemistry, Medical University of Lublin, Chodźki 4a, 20-093 Lublin, Poland;
| | - Anna Oniszczuk
- Department of Inorganic Chemistry, Medical University of Lublin, Chodźki 4a, 20-093 Lublin, Poland;
| | - Kinga Borowicz-Reutt
- Independent Experimental Neuropathophysiology Unit, Medical University of Lublin, Jaczewskiego 8b, 20-090 Lublin, Poland; (M.R.); (K.B.-R.)
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Fung TKH, Lau BWM, Ngai SPC, Tsang HWH. Therapeutic Effect and Mechanisms of Essential Oils in Mood Disorders: Interaction between the Nervous and Respiratory Systems. Int J Mol Sci 2021; 22:ijms22094844. [PMID: 34063646 PMCID: PMC8125361 DOI: 10.3390/ijms22094844] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Revised: 04/28/2021] [Accepted: 04/29/2021] [Indexed: 02/05/2023] Open
Abstract
Essential oils (EOs) are extracted from plants and contain active components with therapeutic effects. Evidence shows that various types of EOs have a wide range of health benefits. In our previous studies, the potential of lavender EO for prevention and even treatment of depression and anxiety symptoms was demonstrated. The favourable outcomes may be due to multiple mechanisms, including the regulation of monoamine level, the induction of neurotrophic factor expression, the regulation of the endocrine system and the promotion of neurogenesis. The molecules of EOs may reach the brain and exert an effect through two distinctive pathways, namely, the olfactory system and the respiratory system. After inhalation, the molecules of the EOs would either act directly on the olfactory mucosa or pass into the respiratory tract. These two delivery pathways suggest different underlying mechanisms of action. Different sets of responses would be triggered, such as increased neurogenesis, regulation of hormonal levels, activation of different brain regions, and alteration in blood biochemistry, which would ultimately affect both mood and emotion. In this review, we will discuss the clinical effects of EOs on mood regulation and emotional disturbances as well as the cellular and molecular mechanisms of action. Emphasis will be put on the interaction between the respiratory and central nervous system and the involved potential mechanisms. Further evidence is needed to support the use of EOs in the clinical treatment of mood disturbances. Exploration of the underlying mechanisms may provide insight into the future therapeutic use of EO components treatment of psychiatric and physical symptoms.
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Coutens B, Rekik K, Harster A, Etienne P, Noirot V, Frances B, Moulédous L, Guiard BP. A Citrus Based Sensory Functional Food Ingredient Induces Antidepressant-like Effects: Possible Involvement of an Interplay between the Olfactory and the Serotonergic Systems. Neuroscience 2020; 451:149-163. [PMID: 33039523 DOI: 10.1016/j.neuroscience.2020.09.040] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Revised: 09/17/2020] [Accepted: 09/20/2020] [Indexed: 12/28/2022]
Abstract
In the present study, we examined the neurobehavioral effects of a sensory functional food ingredient mainly based on Citrus sinensis extracts (D11399) using a battery of tests recapitulating various endophenotypes of depression such as anxiety in the open field (OF), the elevated plus-maze (EPM), and the novelty suppressed feeding (NSF), self-care in the splash test (ST), despair in the forced swimming task (FST) but also anhedonia in the sucrose preference test (SPT) in mice. A one-week oral administration of D11399 promoted anxiolytic- and antidepressant-like responses in naïve mice subjected to the NSF and FST. In a marked contrast, the administration of D11399 by oral gavage or the inhibition of olfaction by methimazole prevented such beneficial effects. We further investigated the neurobehavioral properties of a ten-week oral administration of D11399 in the corticosterone (CORT) mouse model of depression. Interestingly, D11399 also elicited anxiolytic- and antidepressant-like effects in various paradigms. To characterize the putative underpinning neurobiological mechanisms in CORT mice, we investigated whether cellular and molecular processes commonly associated with antidepressant responses such as monoaminergic neurotransmission and neuronal maturation in the hippocampus were impacted. Although D11399 did not modify the hippocampal extracellular levels of monoamines (i.e. serotonin and norepinephrine), it reversed the ability of CORT to decrease serotonin neurons firing rate in the dorsal raphe and neuronal maturation in the hippocampus. These findings suggest that the anxiolytic- and antidepressant-like effects of this sensory functional food ingredient are closely related with olfaction and likely a concomitant change in the activity of the central serotonergic system. Further experiments are warranted to precise the neuronal circuits linking sensorial and emotional modalities and identify innovative therapeutic strategies aimed to relieve depressive endophenotypes.
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Affiliation(s)
- B Coutens
- Centre de Recherches sur la Cognition Animale, Centre de Biologie Intégrative, Université de Toulouse, CNRS, UPS, France
| | - K Rekik
- Centre de Recherches sur la Cognition Animale, Centre de Biologie Intégrative, Université de Toulouse, CNRS, UPS, France
| | - A Harster
- Centre de Recherches sur la Cognition Animale, Centre de Biologie Intégrative, Université de Toulouse, CNRS, UPS, France
| | | | | | - B Frances
- Centre de Recherches sur la Cognition Animale, Centre de Biologie Intégrative, Université de Toulouse, CNRS, UPS, France
| | - L Moulédous
- Centre de Recherches sur la Cognition Animale, Centre de Biologie Intégrative, Université de Toulouse, CNRS, UPS, France
| | - B P Guiard
- Centre de Recherches sur la Cognition Animale, Centre de Biologie Intégrative, Université de Toulouse, CNRS, UPS, France; Faculté de Pharmacie, Université Paris Sud, Université Paris-Saclay, 92290 Chatenay-Malabry, France.
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Langer E, Einat H, Stukalin Y. Similarities and dissimilarities in the effects of benzodiazepines and specific serotonin reuptake inhibitors (SSRIs) in the defensive marble burying test: A systematic review and meta-analysis. Eur Neuropsychopharmacol 2020; 36:38-49. [PMID: 32456852 DOI: 10.1016/j.euroneuro.2020.04.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Revised: 04/04/2020] [Accepted: 04/23/2020] [Indexed: 02/07/2023]
Abstract
One problem areas of animal models and tests for neuropsychiatric disorders is unclear reproducibility, including both internal and external validity. One way to examine external validity is with systematic reviews and meta-analyses, a standard practice in clinical research that is relatively neglected in preclinical research. Considering the need to evaluate the validity and reproducibility of frequently used animal models, this study presents a meta-analysis of the effects of prototypic benzodiazepines and specific serotonin reuptake inhibitors (SSRIs) in the mouse defensive marble burying test (MBT). These drug groups were selected because although they differ in their biological targets as well as in their clinical use, they are both commonly used for the treatment of anxiety disorders. A PubMed literature search was performed to identify studies that examined the effects of benzodiazepines (diazepam, alprazolam, chlordiazepoxide, clonazepam) or SSRIs (fluoxetine, citalopram, escitalopram, fluvoxamine, paroxetine) in the MBT in mice. For benzodiazepines, 73 experiments were included. Benzodiazepines effect size was 2.04 and Q statistics was 1959 with a significant correlation between dose and effect size (r = 0.31, p = 0.007). For SSRIs we identified 47 experiments. Effect size of SSRIs was 2.24 and Q statistics was 493.38. No correlation was found between dose and effect size (r = 0.23, p = 0.12). The current results support the external validity of the defensive marble burying test as a screening test for anxiolytic effects. However, these results indicate that significant attention should be given to the administration schedules of benzodiazepines and SSRIs.
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Affiliation(s)
- Erez Langer
- School of Behavioral Sciences, Tel Aviv-Yaffo Academic College, Tel-Aviv, Israel
| | - Haim Einat
- School of Behavioral Sciences, Tel Aviv-Yaffo Academic College, Tel-Aviv, Israel.
| | - Yelena Stukalin
- School of Behavioral Sciences, Tel Aviv-Yaffo Academic College, Tel-Aviv, Israel
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Aponso M, Patti A, Bennett LE. Dose-related effects of inhaled essential oils on behavioural measures of anxiety and depression and biomarkers of oxidative stress. JOURNAL OF ETHNOPHARMACOLOGY 2020; 250:112469. [PMID: 31843574 DOI: 10.1016/j.jep.2019.112469] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2019] [Revised: 12/06/2019] [Accepted: 12/09/2019] [Indexed: 06/10/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Essential oils (EOs) are extracts of organic, volatile metabolites of plants that are typically oily liquids at ambient temperatures. Inhalation of EOs can regulate brain health and functions associated with mood and neurodegeneration, reflecting their bioavailability to brain. The aim was to identify physicochemical properties that influenced EO volatility and pathways of brain uptake by inhalation. MATERIALS AND METHODS Dose-dependency of effects, determined as: total EO intake (μg/g bodyweight-BW), and rate of EO intake (μg/hr/g-BW), was determined by meta-analysis of data from animal studies (10 studies, 12 EOs), measuring effects on anxiety, depression and selected biomarkers of oxidative stress and inflammation (OSI). RESULTS Results demonstrated benefits on animal behavior at EO intakes of 1-100 μg/g BW and 1-10 μg/hr/g BW (Elevated Plus Maze and Forced Swimming tests) and <100 μg/g BW and 10-100 g/hr/g BW (Marble Burying). EOs regulated OSI biomarkers at intakes of 10-100 μg/g BW and 1-10 μg/h/g BW, and a dose-dependent elevation of dopamine at >1000 μg/g BW and 100-1000 μg/hr/g BW. CONCLUSION The results support that EO 'aromatherapy' can promote dose-dependent regulation of anxiety, depression and OSI and that efficacy requires optimization of dose.
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Affiliation(s)
- Minoli Aponso
- School of Chemistry, Monash University, Clayton, Victoria, 3800, Australia
| | - Antonio Patti
- School of Chemistry, Monash University, Clayton, Victoria, 3800, Australia
| | - Louise E Bennett
- School of Chemistry, Monash University, Clayton, Victoria, 3800, Australia.
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Donatello NN, Emer AA, Salm DC, Ludtke DD, Bordignon SASR, Ferreira JK, Salgado ASI, Venzke D, Bretanha LC, Micke GA, Martins DF. Lavandula angustifolia essential oil inhalation reduces mechanical hyperalgesia in a model of inflammatory and neuropathic pain: The involvement of opioid and cannabinoid receptors. J Neuroimmunol 2020; 340:577145. [DOI: 10.1016/j.jneuroim.2020.577145] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2019] [Revised: 12/30/2019] [Accepted: 01/08/2020] [Indexed: 01/19/2023]
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Koyama S, Heinbockel T. The Effects of Essential Oils and Terpenes in Relation to Their Routes of Intake and Application. Int J Mol Sci 2020; 21:E1558. [PMID: 32106479 PMCID: PMC7084246 DOI: 10.3390/ijms21051558] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2020] [Revised: 02/17/2020] [Accepted: 02/20/2020] [Indexed: 12/18/2022] Open
Abstract
Essential oils have been used in multiple ways, i.e., inhaling, topically applying on the skin, and drinking. Thus, there are three major routes of intake or application involved: the olfactory system, the skin, and the gastro-intestinal system. Understanding these routes is important for clarifying the mechanisms of action of essential oils. Here we summarize the three systems involved, and the effects of essential oils and their constituents at the cellular and systems level. Many factors affect the rate of uptake of each chemical constituent included in essential oils. It is important to determine how much of each constituent is included in an essential oil and to use single chemical compounds to precisely test their effects. Studies have shown synergistic influences of the constituents, which affect the mechanisms of action of the essential oil constituents. For the skin and digestive system, the chemical components of essential oils can directly activate gamma aminobutyric acid (GABA) receptors and transient receptor potential channels (TRP) channels, whereas in the olfactory system, chemical components activate olfactory receptors. Here, GABA receptors and TRP channels could play a role, mostly when the signals are transferred to the olfactory bulb and the brain.
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Affiliation(s)
- Sachiko Koyama
- Department of Biology, Indiana University, Bloomington, IN 47405, USA
| | - Thomas Heinbockel
- Department of Anatomy, College of Medicine, Howard University, Washington, DC 20059, USA
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Zhang N, Yao L. Anxiolytic Effect of Essential Oils and Their Constituents: A Review. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:13790-13808. [PMID: 31148444 DOI: 10.1021/acs.jafc.9b00433] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Essential oils are usually used in aromatherapy to alleviate anxiety symptoms. In comparison to traditional drugs, essential oils have fewer side effects and more diversified application ways, including inhalation. This review provides a comprehensive overview of studies on anxiolytic effects of essential oils in preclinical and clinical trials. Most of the essential oils used in clinical studies have been proven to be anxiolytic in animal models. Inhalation and oral administration were two common methods for essential oil administration in preclinical and clinical trials. Massage was only used in the clinical trials, while intraperitoneal injection was only used in the preclinical trails. In addition to essential oils that are commonly used in aromatherapy, essential oils from many folk medicinal plants have also been reported to be anxiolytic. More than 20 compounds derived from essential oils have shown an anxiolytic effect in rodents, while two-thirds of them are alcohols and terpenes. Monoamine neurotransmitters, amino acid neurotransmitters, and the hypothalamic-pituitary-adrenal axis are thought to play important roles in the anxiolytic effects of essential oils.
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Hocayen PDAS, Wendler E, Vecchia DD, Kanazawa LKS, Issy AC, Del Bel E, Andreatini R. The nitrergic neurotransmission contributes to the anxiolytic-like effect of Citrus sinensis essential oil in animal models. Phytother Res 2019; 33:901-909. [PMID: 30714232 DOI: 10.1002/ptr.6281] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2018] [Revised: 11/03/2018] [Accepted: 12/14/2018] [Indexed: 12/12/2022]
Abstract
Citrus fragrances have been used in aromatherapy for the treatment of anxiety, and the essential oil of Citrus sinensis (sweet orange) has shown promising results, although its mechanism of action was not known. The objective of this study was to evaluate the involvement of nitric oxide (NO) neurotransmission in the anxiolytic-like effect of C. sinensis essential oil. Swiss male mice were submitted to 15 min of C. sinensis essential oil inhalation (1%, 2.5%, 5%, and 10%) and tested in the marble-burying test, neophobia-induced hypophagia, and light/dark test. Locomotor activity was evaluated in an automated locomotor activity box. The coadministration of C. sinensis essential oil with L-arginine (200 mg/kg, i.p.), an NO precursor, was used for the behavioral evaluation of nitrergic system mediation. Additionally, the NO synthase activity was measured by nicotinamide adenine dinucleotide phosphate diaphorase (NADPH-d) analysis in the cerebral cortex. C. sinensis essential oil exerted anxiolytic-like effect at dose that did not change locomotor activity. Moreover, L-arginine pretreatment prevented this anxiolytic-like effect on marble-burying test. Finally, C. sinensis essential oil reduced the NADPH-d positive cells. Thus, the nitrergic neurotransmission plays a relevant role in the anxiolytic-like effect C. sinensis essential oil.
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Affiliation(s)
- Palloma de A S Hocayen
- Laboratory of Physiology and Pharmacology of the Central Nervous System, Department of Pharmacology, Federal University of Paraná, Curitiba, Brazil
| | - Etiele Wendler
- Laboratory of Physiology and Pharmacology of the Central Nervous System, Department of Pharmacology, Federal University of Paraná, Curitiba, Brazil.,Department of Pharmacy, Centro Universitário Campos de Andrade, Curitiba, Brazil
| | - Débora D Vecchia
- Laboratory of Physiology and Pharmacology of the Central Nervous System, Department of Pharmacology, Federal University of Paraná, Curitiba, Brazil.,Department of Pharmacy, Centro Universitário Campos de Andrade, Curitiba, Brazil
| | - Luiz K S Kanazawa
- Laboratory of Physiology and Pharmacology of the Central Nervous System, Department of Pharmacology, Federal University of Paraná, Curitiba, Brazil
| | - Ana Carolina Issy
- School of Dentistry of Ribeirão Preto, Department of Morphology, Physiology and Basic Pathology, University of São Paulo (USP), Ribeirão Preto, Brazil
| | - Elaine Del Bel
- School of Dentistry of Ribeirão Preto, Department of Morphology, Physiology and Basic Pathology, University of São Paulo (USP), Ribeirão Preto, Brazil
| | - Roberto Andreatini
- Laboratory of Physiology and Pharmacology of the Central Nervous System, Department of Pharmacology, Federal University of Paraná, Curitiba, Brazil
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Salehi B, Mnayer D, Özçelik B, Altin G, Kasapoğlu KN, Daskaya-Dikmen C, Sharifi-Rad M, Selamoglu Z, Acharya K, Sen S, Matthews KR, Fokou PVT, Sharopov F, Setzer WN, Martorell M, Sharifi-Rad J. Plants of the Genus Lavandula: From Farm to Pharmacy. Nat Prod Commun 2018; 13:1934578X1801301. [DOI: 10.1177/1934578x1801301037] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/14/2024] Open
Abstract
The Lavandula genus, belonging to the Lamiaceae, includes 39 species, with nearly 400 registered cultivars. Lavandula are worldwide plants that occur over the Mediterranean, Europe, North Africa, southwest Asia to southeast India. Lavandula plants have been used since ancient time to flavor and preserved food, to treat diseases including wound healing, sedative, antispasmodic, microbial and viral infections. Numerous researches have described the chemical composition and the primary components of lavender oils are the monoterpenoids (linalool, linalyl acetate, 1,8-cineole, β-ocimene, terpinen-4-ol, and camphor), sesquiterpenoids (β-caryophyllene and nerolidol) and other terpenoid compounds (e.g., perillyl alcohol). The high concentrations of linalyl acetate make them attractive in perfumery, flavoring, cosmetics and soap industries. Currently, data on the antimicrobial activity of lavender plants have been scientifically confirmed. Indeed, lavender essential oils possess wide spectra of biological activities such as antispasmodic, carminative, analgesic, sedative, hypotensive, antiseptic, antimicrobial, antifungal, antidiuretic and general tonic action. In addition, clinical studies support their uses as treatment of health conditions. However, further clinical studies are necessary to define the magnitude of the efficacy, mechanisms of action, optimal doses, long-term safety, and, potential side effects of lavender plants.
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Affiliation(s)
- Bahare Salehi
- Medical Ethics and Law Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- Student Research Committee, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Dima Mnayer
- Faculty of Sciences, Lebanese University, Fanar, Beirut, Lebanon
| | - Beraat Özçelik
- Department of Food Engineering, Faculty of Chemical and Metallurgical Engineering, Istanbul Technical University, Maslak, 34469, Istanbul, Turkey
- BIOACTIVE Research & Innovation Food Manufac. Indust. Trade Ltd., Katar Street, Teknokent ARI-3, B110, Sarıyer, 34467, Istanbul, Turkey
| | - Gokce Altin
- Department of Food Engineering, Faculty of Chemical and Metallurgical Engineering, Istanbul Technical University, Maslak, 34469, Istanbul, Turkey
| | - Kadriye Nur Kasapoğlu
- Department of Food Engineering, Faculty of Chemical and Metallurgical Engineering, Istanbul Technical University, Maslak, 34469, Istanbul, Turkey
| | - Ceren Daskaya-Dikmen
- Department of Food Engineering, Faculty of Chemical and Metallurgical Engineering, Istanbul Technical University, Maslak, 34469, Istanbul, Turkey
| | - Mehdi Sharifi-Rad
- Department of Medical Parasitology, Zabol University of Medical Sciences, Zabol 61663-335, Iran
| | - Zeliha Selamoglu
- Department of Medical Biology, Faculty of Medicine, Nigde Ömer Halisdemir University, Campus, 51240, Nigde, Turkey
| | - Krishnendu Acharya
- Molecular and Applied Mycology and Plant Pathology Laboratory, Department of Botany, University of Calcutta, Kolkata 700019, India
| | - Surjit Sen
- Molecular and Applied Mycology and Plant Pathology Laboratory, Department of Botany, University of Calcutta, Kolkata 700019, India
- Department of Botany, Fakir Chand College, Diamond Harbour, West Bengal – 743331, India
| | - Karl R. Matthews
- Department of Food Science, Rutgers University, New Brunswick, New Jersey, USA
| | | | - Farukh Sharopov
- Department of Pharmaceutical Technology, Avicenna Tajik State Medical University, Rudaki 139, 734003, Dushanbe, Tajikistan
| | - William N. Setzer
- Department of Chemistry, University of Alabama in Huntsville, Huntsville, AL 35899, USA
- Aromatic Plant Research Center, 615 St. George Square Court, Suite 300, Winston-Salem, NC 27103, USA
| | - Miquel Martorell
- Department of Nutrition and Dietetics, Faculty of Pharmacy, University of Concepcion, Concepcion, Chile
| | - Javad Sharifi-Rad
- Phytochemistry Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- Department of Chemistry, Richardson College for the Environmental Science Complex, The University of Winnipeg, Winnipeg, MB, Canada
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Ilkiw JL, Kmita LC, Targa ADS, Noseda ACD, Rodrigues LS, Dorieux FWC, Fagotti J, Dos Santos P, Lima MMS. Dopaminergic Lesion in the Olfactory Bulb Restores Olfaction and Induces Depressive-Like Behaviors in a 6-OHDA Model of Parkinson's Disease. Mol Neurobiol 2018; 56:1082-1095. [PMID: 29869198 DOI: 10.1007/s12035-018-1134-5] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2018] [Accepted: 05/15/2018] [Indexed: 12/13/2022]
Abstract
Olfactory impairments and depressive behavior are commonly reported by individuals with Parkinson's disease (PD) being observed before motor symptoms. The mechanisms underlying these clinical manifestations are not fully elucidated. However, the imbalance in dopaminergic neurotransmission seems to play an important role in this context. In patients and animal models of PD, an increase in the dopaminergic interneurons of the glomerular layer in olfactory bulb (OB-gl) is observed, which may contribute to the olfactory impairment. In addition, neuronal imbalance in OB is related to depressive symptoms, as demonstrated by chemical olfactory bulbectomy. In view of that, we hypothesized that a reduction in the number or density of dopaminergic neurons present in OB could promote an olfactory improvement and, in contrast, would accentuate the depressive-like behaviors in the 6-hydroxydopamine (6-OHDA) model of PD. Therefore, we performed single or double injections of 6-OHDA within the substantia nigra pars compacta (SNpc) and/or in the OB-gl. We observed that, after 7 days, the group with nigral lesion exhibited olfactory impairment, as well as the group with the lesion in the OB-gl. However, the combination of the lesions prevented the occurrence of hyposmia. In relation to depressive-like behaviors, we observed that the SNpc injury promoted depressive-like behavior, being accentuated after a double injury. Our results demonstrated the importance of the dopaminergic neurons of the OB-gl in different non-motor features of PD, since the selective reduction of these periglomerular neurons was able to induce olfactory impairment and depressive-like behaviors.
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Affiliation(s)
- Jessica L Ilkiw
- Laboratório de Neurofisiologia. Departamento de Fisiologia, Universidade Federal do Paraná, Av. Francisco H. dos Santos s/n,, Curitiba, PR, 81531-990, Brazil
| | - Luana C Kmita
- Laboratório de Neurofisiologia. Departamento de Fisiologia, Universidade Federal do Paraná, Av. Francisco H. dos Santos s/n,, Curitiba, PR, 81531-990, Brazil
| | - Adriano D S Targa
- Laboratório de Neurofisiologia. Departamento de Fisiologia, Universidade Federal do Paraná, Av. Francisco H. dos Santos s/n,, Curitiba, PR, 81531-990, Brazil
| | - Ana Carolina D Noseda
- Laboratório de Neurofisiologia. Departamento de Fisiologia, Universidade Federal do Paraná, Av. Francisco H. dos Santos s/n,, Curitiba, PR, 81531-990, Brazil
| | - Lais S Rodrigues
- Laboratório de Neurofisiologia. Departamento de Fisiologia, Universidade Federal do Paraná, Av. Francisco H. dos Santos s/n,, Curitiba, PR, 81531-990, Brazil
| | - Flávia W C Dorieux
- Laboratório de Neurofisiologia. Departamento de Fisiologia, Universidade Federal do Paraná, Av. Francisco H. dos Santos s/n,, Curitiba, PR, 81531-990, Brazil
| | - Juliane Fagotti
- Laboratório de Neurofisiologia. Departamento de Fisiologia, Universidade Federal do Paraná, Av. Francisco H. dos Santos s/n,, Curitiba, PR, 81531-990, Brazil
| | - Patrícia Dos Santos
- Laboratório de Neurofisiologia. Departamento de Fisiologia, Universidade Federal do Paraná, Av. Francisco H. dos Santos s/n,, Curitiba, PR, 81531-990, Brazil
| | - Marcelo M S Lima
- Laboratório de Neurofisiologia. Departamento de Fisiologia, Universidade Federal do Paraná, Av. Francisco H. dos Santos s/n,, Curitiba, PR, 81531-990, Brazil.
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Satou T, Hayakawa M, Goto Y, Masuo Y, Koike K. Anxiolytic-like effects of essential oil from Thymus vulgaris
was increased during stress. FLAVOUR FRAG J 2018. [DOI: 10.1002/ffj.3434] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Tadaaki Satou
- Faculty of Pharmaceutical Sciences; Toho University; 2-2-1 Miyama Funabashi, Chiba 274-8510 Japan
- Department of Pharmaceutical Sciences; International University of Health and Welfare; 2600-1 Kitakanamaru Ohtawara, Tochigi 324-8501 Japan
| | - Mako Hayakawa
- Faculty of Science; Toho University; 2-2-1 Miyama Funabashi, Chiba 274-8510 Japan
| | - Yumi Goto
- Faculty of Science; Toho University; 2-2-1 Miyama Funabashi, Chiba 274-8510 Japan
| | - Yoshinori Masuo
- Faculty of Science; Toho University; 2-2-1 Miyama Funabashi, Chiba 274-8510 Japan
| | - Kazuo Koike
- Faculty of Pharmaceutical Sciences; Toho University; 2-2-1 Miyama Funabashi, Chiba 274-8510 Japan
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Aurich MF, Rodrigues LS, Targa ADS, Noseda ACD, Cunha FDW, Lima MMS. Olfactory impairment is related to REM sleep deprivation in rotenone model of Parkinson's disease. ACTA ACUST UNITED AC 2017; 10:47-54. [PMID: 28966738 PMCID: PMC5611772 DOI: 10.5935/1984-0063.20170008] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
INTRODUCTION Olfactory dysfunction affects about 85-90% of Parkinson's disease (PD) patients with severe deterioration in the ability of discriminate several types of odors. In addition, studies reported declines in olfactory performances during a short period of sleep deprivation. Besides, PD is also known to strongly affect the occurrence and maintenance of rapid eye movement (REM) sleep. METHODS Therefore, we investigated the mechanisms involved on discrimination of a social odor (dependent on the vomeronasal system) and a non-social odor (related to the main olfactory pathway) in the rotenone model of PD. Also, a concomitant impairment in REM sleep was inflicted with the introduction of two periods (24 or 48 h) of REM sleep deprivation (REMSD). Rotenone promoted a remarkable olfactory impairment in both social and non-social odors, with a notable modulation induced by 24 h of REMSD for the non-social odor. RESULTS Our findings demonstrated the occurrence of a strong association between the density of nigral TH-ir neurons and the olfactory discrimination capacity for both odorant stimuli. Specifically, the rotenone-induced decrease of these neurons tends to elicit reductions in the olfactory discrimination ability. CONCLUSIONS These results are consistent with the participation of the nigrostriatal dopaminergic system mainly in the olfactory discrimination of a non-social odor, probably through the main olfactory pathway. Such involvement may have produce relevant impact in the preclinical abnormalities found in PD patients.
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Affiliation(s)
- Mariana F Aurich
- Laboratório de Neurofisiologia. Departamento de Fisiologia. Universidade Federal do Paraná, Curitiba, PR, Brazil
| | - Lais S Rodrigues
- Laboratório de Neurofisiologia. Departamento de Fisiologia. Universidade Federal do Paraná, Curitiba, PR, Brazil
| | - Adriano D S Targa
- Laboratório de Neurofisiologia. Departamento de Fisiologia. Universidade Federal do Paraná, Curitiba, PR, Brazil
| | - Ana Carolina D Noseda
- Laboratório de Neurofisiologia. Departamento de Fisiologia. Universidade Federal do Paraná, Curitiba, PR, Brazil
| | - Flávia D W Cunha
- Laboratório de Neurofisiologia. Departamento de Fisiologia. Universidade Federal do Paraná, Curitiba, PR, Brazil
| | - Marcelo M S Lima
- Laboratório de Neurofisiologia. Departamento de Fisiologia. Universidade Federal do Paraná, Curitiba, PR, Brazil
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Abstract
Anxiety disorders are some of the most common psychiatric disorders, with potentially debilitating consequences on individual function. Existing pharmacotherapies for anxiety disorders are limited by delay to therapeutic effect, dependence, tolerance, withdrawal, and abuse potential. Therefore, safe and evidence-based complementary or alternative therapies may be important allies in the care of patients with anxiety disorders. Essential oils are lipophilic and concentrated botanical extracts that exhibit many properties of drugs, although they are not Food and Drug Administration approved and have limitations characteristic of herbal preparations. Lavender essential oil has an extensive anecdotal history of anxiolytic benefit that has recently been supported by clinical efficacy studies. The 2 primary terpenoid constituents of lavender essential oil, linalool and linalyl acetate, may produce an anxiolytic effect in combination via inhibition of voltage-gated calcium channels, reduction of 5HT1A receptor activity, and increased parasympathetic tone. The objectives of this article are to provide a brief overview of lavender oil in aromatherapy, explore variability in the constituents of lavender oil, summarize its pharmacology and safety profile, as well as describe its body of research that has been conducted for anxiety.
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Affiliation(s)
- Benjamin J Malcolm
- Assistant Professor of Pharmacy Practice & Administration, Western University of Health Sciences, Pomona, California,
| | - Kimberly Tallian
- Psychiatry Pharmacy Specialist, Scripps Mercy Hospital, Hillcrest, California; Adjunct Clinical Professor, University of California at San Diego School of Pharmacy & Keck Graduate Institute School of Pharmacy, San Diego, California
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Goepfert M, Liebl P, Herth N, Ciarlo G, Buentzel J, Huebner J. Aroma oil therapy in palliative care: a pilot study with physiological parameters in conscious as well as unconscious patients. J Cancer Res Clin Oncol 2017. [PMID: 28634728 DOI: 10.1007/s00432-017-2460-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
OBJECTIVE The aim of this pilot study is to analyze the reactions of healthy test persons and conscious as well as unconscious palliative patients to aroma stimuli. PATIENTS AND METHODS In a randomized controlled study, healthy probands, conscious and unconscious palliative patients were exposed to two essential oils (lemon, lavender). Water was used as the control stimulus. Physiological parameters (breathing rate and heart rate, oxygen saturation, systolic, diastolic and mean arterial pressure) were measured. RESULTS 10 test persons (control group), 15 conscious patients and 5 unconscious palliative patients were exposed to the stimuli. Healthy test persons reacted to lemon oil with a significant increase in respiration rate, heart rate and diastolic blood pressure, whereas to lavender oil with a significant decrease in respiration rate was measured. There were no significant reactions concerning the other parameters. Conscious and unconscious patients reacted with a significant increase in all measured parameters to lemon oil and with a significant decrease in all parameters except for oxygen saturation to lavender oil. No significant differences in the reactions were measured between the conscious and unconscious patients and no significant reactions to control stimuli were detected. All physiological reactions were very short and only detectable during stimulus presentation. CONCLUSION Significant physiological reactions were measured after simulation with aroma oils in all three groups in this study. Healthy probands showed different reactions than palliative patients irrespective to their conscious state.
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Affiliation(s)
- Melanie Goepfert
- Working Group Integrative Oncology, Dr. Senckenberg Chronomedical Institute, J. W. Goethe University, Theodor-Stern-Kai 7, 60590, Frankfurt, Germany
| | - Patrick Liebl
- Medizinische Klinik II, Hämatologie und internistische Onkologie, Universitätsklinikum Jena, Am Klinikum 1, 07747, Jena, Germany
| | - Natalie Herth
- Working Group Integrative Oncology, Dr. Senckenberg Chronomedical Institute, J. W. Goethe University, Theodor-Stern-Kai 7, 60590, Frankfurt, Germany
| | - Giancarlo Ciarlo
- Working Group Integrative Oncology, Dr. Senckenberg Chronomedical Institute, J. W. Goethe University, Theodor-Stern-Kai 7, 60590, Frankfurt, Germany
| | - Jens Buentzel
- Klinik für HNO-Erkrankungen, Kopf-Hals-Chirurgie, Südharz Klinikum Nordhausen, Dr.-Robert-Koch-Straße 39, 99734, Nordhausen, Germany
| | - Jutta Huebner
- Medizinische Klinik II, Hämatologie und internistische Onkologie, Universitätsklinikum Jena, Am Klinikum 1, 07747, Jena, Germany.
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Rombolà L, Tridico L, Scuteri D, Sakurada T, Sakurada S, Mizoguchi H, Avato P, Corasaniti MT, Bagetta G, Morrone LA. Bergamot Essential Oil Attenuates Anxiety-Like Behaviour in Rats. Molecules 2017; 22:molecules22040614. [PMID: 28398260 PMCID: PMC6154596 DOI: 10.3390/molecules22040614] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2017] [Revised: 04/07/2017] [Accepted: 04/09/2017] [Indexed: 11/16/2022] Open
Abstract
Preclinical studies have recently highlighted that bergamot essential oil (BEO) is endowed with remarkable neurobiolological effects. BEO can affect synaptic transmission, modulate electroencephalographic activity and it showed neuroprotective and analgesic properties. The phytocomplex, along with other essential oils, is also widely used in aromatherapy to minimize symptoms of stress-induced anxiety and mild mood disorders. However, only limited preclinical evidences are actually available. This study examined the anxiolytic/sedative-like effects of BEO using an open field task (OFT), an elevated plus-maze task (EPM), and a forced swimming task (FST) in rats. This study further compared behavioural effects of BEO to those of the benzodiazepine diazepam. Analysis of data suggests that BEO induces anxiolytic-like/relaxant effects in animal behavioural tasks not superimposable to those of the DZP. The present observations provide further insight to the pharmacological profile of BEO and support its rational use in aromatherapy.
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Affiliation(s)
- Laura Rombolà
- Department of Pharmacy, Health and Nutritional Sciences, Section of Preclinical and Translational Pharmacology, University of Calabria, 87036 Rende, Italy.
| | - Laura Tridico
- Department of Pharmacy, Health and Nutritional Sciences, Section of Preclinical and Translational Pharmacology, University of Calabria, 87036 Rende, Italy.
| | - Damiana Scuteri
- Department of Pharmacy, Health and Nutritional Sciences, Section of Preclinical and Translational Pharmacology, University of Calabria, 87036 Rende, Italy.
| | - Tsukasa Sakurada
- First Department of Pharmacology, Daiichi College of Pharmaceutical Sciences, 815-8511 Fukuoka, Japan.
| | - Shinobu Sakurada
- Department of Physiology and Anatomy, Tohoku Pharmaceutical University, 981-8558 Sendai, Japan.
| | - Hirokazu Mizoguchi
- Department of Physiology and Anatomy, Tohoku Pharmaceutical University, 981-8558 Sendai, Japan.
| | - Pinarosa Avato
- Department of Pharmacy-Drug Sciences, University of Bari Aldo Moro, IT-70125 Bari, Italy.
| | | | - Giacinto Bagetta
- Department of Pharmacy, Health and Nutritional Sciences, Section of Preclinical and Translational Pharmacology, University of Calabria, 87036 Rende, Italy.
| | - Luigi Antonio Morrone
- Department of Pharmacy, Health and Nutritional Sciences, Section of Preclinical and Translational Pharmacology, University of Calabria, 87036 Rende, Italy.
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Newly developed method for mouse olfactory behavior tests using an automatic video tracking system. Auris Nasus Larynx 2017; 45:103-110. [PMID: 28343725 DOI: 10.1016/j.anl.2017.03.007] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2016] [Revised: 02/21/2017] [Accepted: 03/08/2017] [Indexed: 11/23/2022]
Abstract
OBJECTIVE The mouse is the most popular animal model in olfactory research. Behavior tests with odorants are essential for determining olfactory phenotype. To the best of our knowledge, the mouse olfactory behavior test has not been standardized, making the results vulnerable to inter-observer variation. We sought to develop a new mouse olfactory behavior test assessed by an automatic video tracking system with minimal inter-observer variation. METHODS A video-tracking system was used to automatically track mouse behavior in standard breeding cages with C57BL/6N mice. We tested two odorants (peanut butter for the preference test, 2MB acid for the avoidance test) and distilled water (for a control). Mouse behavior was recorded for 3min and analyzed. For the preference test, investigation time was measured. For the avoidance test, time spent in sectors away from the odorant zone was measured. To confirm our experimental settings, we also evaluated an anosmia mouse model prepared with intranasal administration of ZnSO4. RESULTS All strains of mice showed reproducible behavior patterns of preference or avoidance for the odorants. The anosmia mouse model, as expected, failed to show an olfactory ability for preference or avoidance, and this was well-matched by histologic changes caused by the ZnSO4 treatment. The automatic video tracking system successfully tracked and automatically calculated mouse behavior with good reproducibility. CONCLUSION Our olfactory behavior test offers a simple and accurate method to evaluate olfactory function in mice. This test can be utilized as a possible standard method to search for features of olfactory phenotypes in mice.
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Odor-induced recall of emotional memories in PTSD–Review and new paradigm for research. Exp Neurol 2016; 284:168-180. [DOI: 10.1016/j.expneurol.2016.08.001] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2016] [Revised: 08/01/2016] [Accepted: 08/04/2016] [Indexed: 01/09/2023]
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Karabín M, Hudcová T, Jelínek L, Dostálek P. Biologically Active Compounds from Hops and Prospects for Their Use. Compr Rev Food Sci Food Saf 2016; 15:542-567. [PMID: 33401815 DOI: 10.1111/1541-4337.12201] [Citation(s) in RCA: 118] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2015] [Revised: 01/31/2016] [Accepted: 02/02/2016] [Indexed: 02/06/2023]
Abstract
Although female cones of the hop plant (Humulus lupulus) are known primarily as raw material supplying characteristic bitterness and aroma to beer, their equally significant health-promoting effects have been known to mankind for several thousand years and hop is a plant traditionally utilized in folk medicine. This paper summarizes the scientific knowledge on the effects of all 3 major groups of secondary metabolites of hops; polyphenols, essential oils, and resins. Because of their chemical diversity, it is no coincidence that these compounds exhibit a wide range of pharmacologically important properties. In addition to antioxidant, anti-inflammatory, and anticancer-related properties, particular attention is being paid to prenylflavonoids that occur almost exclusively in hops and are considered to be some of the most active phytoestrogens known. Hop oils and resins are well known for their sedative and other neuropharmacological properties, but in addition, these compounds exhibit antibacterial and antifungal effects. Recently, alpha bitter acids have been shown to block the development of a number of complex lifestyle diseases that are referred to by the collective name "metabolic syndrome." Information presented in this review confirms the significant potential for the use of hops in the pharmaceutical industry and provides an understanding of beer as a natural drink that, although moderately consumed, may become a source of many health-promoting compounds.
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Affiliation(s)
- Marcel Karabín
- Dept. of Biotechnology, Faculty of Food and Biochemical Technology, Univ. of Chemistry and Technology, Prague, Technická 5, 166 28 Prague 6, Czech Republic
| | - Tereza Hudcová
- Dept. of Biotechnology, Faculty of Food and Biochemical Technology, Univ. of Chemistry and Technology, Prague, Technická 5, 166 28 Prague 6, Czech Republic
| | - Lukáš Jelínek
- Dept. of Biotechnology, Faculty of Food and Biochemical Technology, Univ. of Chemistry and Technology, Prague, Technická 5, 166 28 Prague 6, Czech Republic
| | - Pavel Dostálek
- Dept. of Biotechnology, Faculty of Food and Biochemical Technology, Univ. of Chemistry and Technology, Prague, Technická 5, 166 28 Prague 6, Czech Republic
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Lee SK, Eum CH, Son CG. Analysis of volatile compounds and metals in essential oil and solvent extracts of Amomi Fructus. ANALYTICAL SCIENCE AND TECHNOLOGY 2015. [DOI: 10.5806/ast.2015.28.6.436] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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A Systematic Review of the Anxiolytic-Like Effects of Essential Oils in Animal Models. Molecules 2015; 20:18620-60. [PMID: 26473822 PMCID: PMC6332383 DOI: 10.3390/molecules201018620] [Citation(s) in RCA: 72] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2015] [Revised: 09/24/2015] [Accepted: 10/02/2015] [Indexed: 01/22/2023] Open
Abstract
The clinical efficacy of standardized essential oils (such as Lavender officinalis), in treating anxiety disorders strongly suggests that these natural products are an important candidate source for new anxiolytic drugs. A systematic review of essential oils, their bioactive constituents, and anxiolytic-like activity is conducted. The essential oil with the best profile is Lavendula angustifolia, which has already been tested in controlled clinical trials with positive results. Citrus aurantium using different routes of administration also showed significant effects in several animal models, and was corroborated by different research groups. Other promising essential oils are Citrus sinensis and bergamot oil, which showed certain clinical anxiolytic actions; along with Achillea wilhemsii, Alpinia zerumbet, Citrus aurantium, and Spiranthera odoratissima, which, like Lavendula angustifolia, appear to exert anxiolytic-like effects without GABA/benzodiazepine activity, thus differing in their mechanisms of action from the benzodiazepines. The anxiolytic activity of 25 compounds commonly found in essential oils is also discussed.
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Wei TT, Sun JH, Han LW, Chen K, Wang ZQ, Ji H. Effects of the ornidazole enantiomers on the central nervous system: Involvement of the GABAA receptor. Chem Biol Interact 2015; 242:163-9. [PMID: 26415617 DOI: 10.1016/j.cbi.2015.09.019] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2015] [Revised: 09/05/2015] [Accepted: 09/22/2015] [Indexed: 11/28/2022]
Abstract
This is the preliminary study of the sedative and muscle relaxation activity of ornidazole enantiomers, which are widely used in the treatment of susceptible protozoal infections and anaerobic bacterial infections. Adverse effects on the central nervous system (CNS) are the main side effects of ornidazole during its clinical application. The aim of this study was to compare the different central inhibitory effects between S-(-) ornidazole and R-(+) ornidazole in mice and clarify the possible mechanisms. In the present study, central effects of ornidazole were evaluated by open-field test and rota-rod test, and such effects were reversed by pre-treatment with flumazenil (i.p., 10 mg/kg) suggesting that ornidazole exhibits such action by interacting with the GABAergic system. Then, the functional difference between S-(-) ornidazole and R-(+) ornidazole was further explored by evaluating the contents of glutamate (Glu) and γ-aminobutyric acid (GABA) in the brain, and Western blot was used to measure glutamic acid decarboxylase (GAD65/67) expression in the mice cerebral cortex. We found that R-(+) ornidazole mediated an increase in GABA level while decreased the level of glutamate through upregulation of GAD65/67 in the cerebral cortex. Taken together, our study suggests that R-(+) ornidazole mediate stronger central inhibitory effects than S-(-) ornidazole through interaction with the GABAergic system.
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Affiliation(s)
- Ting-Ting Wei
- Department of Pharmacology, China Pharmaceutical University, Nanjing, 210009, China
| | - Ji-Hong Sun
- Department of Pharmacology, China Pharmaceutical University, Nanjing, 210009, China
| | - Lu-Wei Han
- Nanjing Sanhome Pharmaceutical Co., Ltd., Nanjing, 210000, China
| | - Ke Chen
- Department of Pharmacology, China Pharmaceutical University, Nanjing, 210009, China
| | - Zhi-Qiang Wang
- Nanjing Sanhome Pharmaceutical Co., Ltd., Nanjing, 210000, China
| | - Hui Ji
- Department of Pharmacology, China Pharmaceutical University, Nanjing, 210009, China.
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Rodrigues LS, Targa ADS, Noseda ACD, Aurich MF, Da Cunha C, Lima MMS. Olfactory impairment in the rotenone model of Parkinson's disease is associated with bulbar dopaminergic D2 activity after REM sleep deprivation. Front Cell Neurosci 2014; 8:383. [PMID: 25520618 PMCID: PMC4249459 DOI: 10.3389/fncel.2014.00383] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2014] [Accepted: 10/27/2014] [Indexed: 12/21/2022] Open
Abstract
Olfactory and rapid eye movement (REM) sleep deficits are commonly found in untreated subjects with a recent diagnosis of Parkinson's disease (PD). Additionally, different studies report declines in olfactory performance during a short period of sleep deprivation. Mechanisms underlying these clinical manifestations are poorly understood, and impairment of dopamine (DA) neurotransmission in the olfactory bulb and the nigrostriatal pathway may have important roles in olfaction and REM sleep disturbances. Therefore, we hypothesized that modulation of the dopaminergic D2 receptors in the olfactory bulb could provide a more comprehensive understanding of the olfactory deficits in PD and REM sleep deprivation (REMSD). We decided to investigate the olfactory, neurochemical, and histological alterations generated through the administration of piribedil (a selective D2 agonist) or raclopride (a selective D2 antagonist) within the glomerular layer of the olfactory bulb, in rats subjected to intranigral rotenone and REMSD. Our findings provide evidence of the occurrence of a negative correlation (r = -0.52, P = 0.04) between the number of periglomerular TH-ir neurons and the bulbar levels of DA in the rotenone, but not sham, groups. A significant positive correlation (r = 0.34, P = 0.03) was observed between nigrostriatal DA levels and olfactory discrimination index (DI) for the sham groups, indicating that increased DA levels in the substantia nigra pars compacta (SNpc) are associated with enhanced olfactory discrimination performance. Also, increased levels in bulbar and striatal DA were induced by piribedil in the rotenone control and rotenone REMSD groups, consistent with reductions in the DI. The present evidence reinforce the idea that DA produced by periglomerular neurons, particularly the bulbar dopaminergic D2 receptors, is an essential participant in olfactory discrimination processes, as the SNpc, and the striatum.
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Affiliation(s)
- Lais S Rodrigues
- Laboratório de Neurofisiologia, Departamento de Fisiologia, Universidade Federal do Paraná, Setor de Ciências Biológicas Curitiba, Brazil
| | - Adriano D S Targa
- Laboratório de Neurofisiologia, Departamento de Fisiologia, Universidade Federal do Paraná, Setor de Ciências Biológicas Curitiba, Brazil
| | - Ana Carolina D Noseda
- Laboratório de Neurofisiologia, Departamento de Fisiologia, Universidade Federal do Paraná, Setor de Ciências Biológicas Curitiba, Brazil
| | - Mariana F Aurich
- Laboratório de Neurofisiologia, Departamento de Fisiologia, Universidade Federal do Paraná, Setor de Ciências Biológicas Curitiba, Brazil
| | - Cláudio Da Cunha
- Laboratório de Fisiologia e Farmacologia do Sistema Nervoso Central, Departamento de Farmacologia, Universidade Federal do Paraná Curitiba, Brazil
| | - Marcelo M S Lima
- Laboratório de Neurofisiologia, Departamento de Fisiologia, Universidade Federal do Paraná, Setor de Ciências Biológicas Curitiba, Brazil
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Kasuya H, Okada N, Kubohara M, Satou T, Masuo Y, Koike K. Expression of BDNF and TH mRNA in the brain following inhaled administration of α-pinene. Phytother Res 2014; 29:43-7. [PMID: 25230317 DOI: 10.1002/ptr.5224] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2014] [Revised: 07/29/2014] [Accepted: 08/21/2014] [Indexed: 11/06/2022]
Abstract
Essential oils are mainly administered by inhalation. Administration by inhalation is considered to occur through two pathways, neurological transfer and pharmacological transfer. However, the relationship between the two routes is not clear. To clarify this relationship, we administered α-pinene, which has an anxiolytic-like effect, to mice. Emotional behavior and accumulation and expression of relevant mRNAs in the brain (brain-derived neurotrophic factor (BDNF); tyrosine hydroxylase (TH)) were examined following inhaled administration of α-pinene (10 μL/L air for 60 or 90min). To evaluate the anxiolytic-like effect, the elevated plus maze (EPM) test was used. Inhalation of α-pinene for 60 min produced a significant increase in the total distance traveled in the EPM test compared with control (water). The concentration of α-pinene in the brain after 60 min of inhalation was significantly increased compared with that after 90 min of inhalation. The expression of BDNF mRNA in the olfactory bulb and in the hippocampus was almost the same after 60 min of inhalation compared to that after 90 min of inhalation. The expression of TH mRNA in the midbrain after 60 min of inhalation was significantly increased compared with that of the control. Thus, an increase in α-pinene in the brain induces an increase in TH mRNA expression and increases locomotor activity. The anxiolytic-like effect may be related to both neurological transfer and pharmacological transfer.
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Affiliation(s)
- Hikaru Kasuya
- Faculty of Pharmaceutical Sciences, Toho University, Funabashi, Chiba, 274-8510, Japan
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Takahashi M, Yamanaka A, Asanuma C, Asano H, Satou T, Koike K. Anxiolytic-like Effect of Inhalation of Essential Oil from Lavandula officinalis: Investigation of Changes in 5-HT Turnover and Involvement of Olfactory Stimulation. Nat Prod Commun 2014. [DOI: 10.1177/1934578x1400900735] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Essential oil extracted from Lavandula officinalis (LvEO) has a long history of usage in anxiety alleviation with good evidence to support its use. However, findings and information regarding the exact pathway involved and mechanism of action remain inconclusive. Therefore, we aimed to (1) reveal the influence of olfactory stimulation, and (2) determine whether the serotonergic system is involved in the anxiolytic effect of LvEO when it is inhaled. To this end, we first compared the anxiety-related behaviors of normosmic and anosmic mice. LvEO inhalation caused notable elevation in anxiety-related parameters with or without olfactory perception, indicating that olfactory stimulation is not necessarily required for LvEO to be effective. Neurochemical analysis of the serotonin (5-HT) turnover rate, accompanied by EPM testing, was then performed. LvEO significantly increased the striatal and hippocampal levels of 5-HT and decreased turnover rates in accordance with the anxiolytic behavioral changes. These results, together with previous findings, support the hypothesis that serotonergic neurotransmission plays a certain role in the anxiolytic properties of LvEO.
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Affiliation(s)
- Mizuho Takahashi
- Faculty of Pharmaceutical Sciences, Toho University, Funabashi, Chiba 274–8510, Japan
| | - Ayako Yamanaka
- Faculty of Pharmaceutical Sciences, Toho University, Funabashi, Chiba 274–8510, Japan
| | - Chihiro Asanuma
- Faculty of Pharmaceutical Sciences, Toho University, Funabashi, Chiba 274–8510, Japan
| | - Hiroko Asano
- Faculty of Pharmaceutical Sciences, Toho University, Funabashi, Chiba 274–8510, Japan
| | - Tadaaki Satou
- Faculty of Pharmaceutical Sciences, Toho University, Funabashi, Chiba 274–8510, Japan
| | - Kazuo Koike
- Faculty of Pharmaceutical Sciences, Toho University, Funabashi, Chiba 274–8510, Japan
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Simonet JC, Sunnen CN, Wu J, Golden JA, Marsh ED. Conditional Loss of Arx From the Developing Dorsal Telencephalon Results in Behavioral Phenotypes Resembling Mild Human ARX Mutations. Cereb Cortex 2014; 25:2939-50. [PMID: 24794919 DOI: 10.1093/cercor/bhu090] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Mutations in the Aristaless-Related Homeobox (ARX) gene cause structural anomalies of the brain, epilepsy, and neurocognitive deficits in children. During forebrain development, Arx is expressed in both pallial and subpallial progenitor cells. We previously demonstrated that elimination of Arx from subpallial-derived cortical interneurons generates an epilepsy phenotype with features overlapping those seen in patients with ARX mutations. In this report, we have selectively removed Arx from pallial progenitor cells that give rise to the cerebral cortical projection neurons. While no discernable seizure activity was recorded, these mice exhibited a peculiar constellation of behaviors. They are less anxious, less social, and more active when compared with their wild-type littermates. The overall cortical thickness was reduced, and the corpus callosum and anterior commissure were hypoplastic, consistent with a perturbation in cortical connectivity. Taken together, these data suggest that some of the structural and behavioral anomalies, common in patients with ARX mutations, are specifically due to alterations in pallial progenitor function. Furthermore, our data demonstrate that some of the neurobehavioral features found in patients with ARX mutations may not be due to on-going seizures, as is often postulated, given that epilepsy was eliminated as a confounding variable in these behavior analyses.
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Affiliation(s)
- Jacqueline C Simonet
- Cell and Molecular Biology Graduate Group, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA
| | - C Nicole Sunnen
- Department of Pathology, Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Jue Wu
- Department of Radiology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA
| | - Jeffrey A Golden
- Department of Pathology, Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Eric D Marsh
- Division of Child Neurology, Children's Hospital of Philadelphia, Department of Neurology and Pediatrics, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA Current address: Division of Child Neurology, Children's Hospital of Philadelphia, 3615 Civic Center Boulevard, Philadelphia, PA 19072, USA
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Aprotosoaie AC, Hăncianu M, Costache II, Miron A. Linalool: a review on a key odorant molecule with valuable biological properties. FLAVOUR FRAG J 2014. [DOI: 10.1002/ffj.3197] [Citation(s) in RCA: 161] [Impact Index Per Article: 16.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Ana Clara Aprotosoaie
- Department of Pharmacognosy, Faculty of Pharmacy; University of Medicine and Pharmacy “Grigore T. Popa”; Iasi Romania
| | - Monica Hăncianu
- Department of Pharmacognosy, Faculty of Pharmacy; University of Medicine and Pharmacy “Grigore T. Popa”; Iasi Romania
| | - Irina-Iuliana Costache
- Department of Internal Medicine, Faculty of Medicine; “Sf. Spiridon” University Hospital Iasi; Romania
| | - Anca Miron
- Department of Pharmacognosy, Faculty of Pharmacy; University of Medicine and Pharmacy “Grigore T. Popa”; Iasi Romania
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Costa JP, de Oliveira GAL, de Almeida AAC, Islam M, de Sousa DP, de Freitas RM. Anxiolytic-like effects of phytol: Possible involvement of GABAergic transmission. Brain Res 2014; 1547:34-42. [DOI: 10.1016/j.brainres.2013.12.003] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2013] [Revised: 11/05/2013] [Accepted: 12/03/2013] [Indexed: 12/15/2022]
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