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Benita O, Nesher N, Shomrat T. Neurophysiological measurements of planarian brain activity: a unique model for neuroscience research. Biol Open 2024; 13:bio060480. [PMID: 38979914 DOI: 10.1242/bio.060480] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2024] [Accepted: 06/28/2024] [Indexed: 07/10/2024] Open
Abstract
Planarians are well-known model organisms for regeneration and developmental biology research due to their remarkable regenerative capacity. Here, we aim to advocate for the use of planaria as a valuable model for neurobiology, as well. Planarians have most of the major qualities of more developed organisms, including a primal brain. These traits combined with their exceptional regeneration capabilities, allow neurobiological experiments not possible in any other model organism, as we demonstrate by electrophysiological recording from planaria with two heads that controlling a shared body. To facilitate planarian neuroscience research, we developed an extracellular multi-unit recording procedure for the planarians fragile brain (Dugesia japonica). We created a semi-intact preparation restrained with fine dissection pins, enabling hours of reliable recording, via a suction electrode. Here, we demonstrate the feasibility and potential of planarian neurophysiological research by characterizing the neuronal activity during simple learning processes and responses to various stimuli. In addition, we examined the use of linalool as anesthetic agent to allows recordings from an intact, large worm and for fine electrophysiological approaches such as intracellular recording. The demonstrated ability for neurophysiological measurements, along with the inherent advantages of planarians, promotes this exceptional model organism for neuroscience research.
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Affiliation(s)
- Orel Benita
- Department of Neurobiology, Hebrew University, Jerusalem 9190401, Israel
| | - Nir Nesher
- Faculty of Marine Sciences, Ruppin Academic Center, Michmoret 4029700, Israel
| | - Tal Shomrat
- Faculty of Marine Sciences, Ruppin Academic Center, Michmoret 4029700, Israel
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Bremmer MP, Paladino MB, Campbell AM, Xia K, Tarran R, Hendershot CS, Girdler SS. Acute analgesic effect of nicotine vaping using three experimental pain induction tasks: a randomized, placebo-controlled laboratory study. Psychopharmacology (Berl) 2024:10.1007/s00213-024-06669-8. [PMID: 39120697 DOI: 10.1007/s00213-024-06669-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2024] [Accepted: 08/05/2024] [Indexed: 08/10/2024]
Abstract
RATIONALE Pain and nicotine use are co-occurring conditions with a significant impact on health. Experimental evidence supports an acute analgesic effect of nicotine which may reinforce nicotine use among those with chronic pain. Evidence for nicotine analgesia have primarily been gathered in combustible cigarette users and have not been extended to electronic nicotine delivery systems (ENDS or vaping). Furthermore, the mechanisms of nicotine analgesia in humans are not well understood. OBJECTIVES Assess the effect of acute vaped nicotine on subjective and behavioral indices of pain sensitivity using three tasks designed to probe distinct mechanisms of analgesia. METHODS This study recruited ENDS users (N = 86) to undergo a paced vaping protocol followed by pain tasks in counterbalanced order. Across four sessions, participants vaped e-liquid containing nicotine or placebo, and flavor or no-flavor in a 2 × 2 within-subject design. Assessments included cold pressor, submaximal effort tourniquet to induce ischemic pain, and temporal summation of heat pain, an index of central sensitization. RESULTS Compared to placebo, nicotine increased cold pressor pain tolerance (ηp2 = 0.031), ischemic pain threshold (ηp2 = 0.073) and tolerance (ηp2 = 0.056) but had no effect on temporal summation of pain. Flavor did not affect pain sensitivity. Females reported greater ischemic pain sensitivity (ηp2 = 0.027) and greater reductions in craving (ηp2 = 0.086). CONCLUSIONS Consistent with research from tobacco smoking, analgesia may be reinforcing and contribute to nicotine dependence among ENDS users. More research on sex differences is warranted.
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Affiliation(s)
- Michael P Bremmer
- Department of Psychology & Neuroscience, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.
- Bowles Center for Alcohol Studies, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.
| | - Michael B Paladino
- Department of Psychology & Neuroscience, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
- Bowles Center for Alcohol Studies, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Alana M Campbell
- Department of Psychiatry, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Kai Xia
- Department of Psychiatry, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Robert Tarran
- Division of Genetic, Environmental and Inhalational Disease, Department of Internal Medicine, Kansas University Medical Center, Kansas City, KS, USA
| | - Christian S Hendershot
- Bowles Center for Alcohol Studies, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
- Department of Psychiatry, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Susan S Girdler
- Department of Psychiatry, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
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Carey LM, Ghodrati S, France CP. Discriminative stimulus properties of Cannabis sativa terpenes in rats. Behav Pharmacol 2024; 35:161-171. [PMID: 38660819 PMCID: PMC11095836 DOI: 10.1097/fbp.0000000000000772] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/26/2024]
Abstract
Cannabis is a pharmacologically complex plant consisting of hundreds of potentially active compounds. One class of compounds present in cannabis that has received little attention are terpenes. Traditionally thought to impart aroma and flavor to cannabis, it has become increasingly recognized that terpenes might exert therapeutic effects themselves. Several recent reports have also indicated terpenes might behave as cannabinoid type 1 (CB1) receptor agonists. This study aimed to investigate whether several terpenes present in cannabis produce discriminative stimulus effects similar to or enhance the effects of Δ 9 -tetrahydrocannabinol (THC). Subsequent experiments explored other potential cannabimimetic effects of these terpenes. Rats were trained to discriminate THC from vehicle while responding under a fixed-ratio 10 schedule of food presentation. Substitution testing was performed with the CB receptor agonist JWH-018 and the terpenes linalool, limonene, γ-terpinene and α-humulene alone. Terpenes were also studied in combination with THC. Finally, THC and terpenes were tested in the tetrad assay to screen for CB1-receptor agonist-like effects. THC and JWH-018 dose-dependently produced responding on the THC-paired lever. When administered alone, none of the terpenes produced responding predominantly on the THC-paired lever. When administered in combination with THC, none of the terpenes enhanced the potency of THC, and in the case of α-humulene, decreased the potency of THC to produce responding on the THC-paired lever. While THC produced effects in all four tetrad components, none of the terpenes produced effects in all four components. Therefore, the terpenes examined in this report do not have effects consistent with CB1 receptor agonist properties in the brain.
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Affiliation(s)
- Lawrence M. Carey
- Department of Pharmacology, University of Texas Health Science Center at San Antonio, San Antonio, Texas, USA
- Addiction Research, Treatment & Training Center of Excellence, University of Texas Health Science Center at San Antonio, San Antonio, Texas, USA
| | - Saba Ghodrati
- Department of Pharmacology, University of Texas Health Science Center at San Antonio, San Antonio, Texas, USA
| | - Charles P. France
- Department of Pharmacology, University of Texas Health Science Center at San Antonio, San Antonio, Texas, USA
- Addiction Research, Treatment & Training Center of Excellence, University of Texas Health Science Center at San Antonio, San Antonio, Texas, USA
- Department of Psychiatry, University of Texas Health Science Center at San Antonio, San Antonio, Texas, USA
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Schwarz AM, Keresztes A, Bui T, Hecksel R, Peña A, Lent B, Gao ZG, Gamez-Rivera M, Seekins CA, Chou K, Appel TL, Jacobson KA, Al-Obeidi FA, Streicher JM. Terpenes from Cannabis sativa induce antinociception in a mouse model of chronic neuropathic pain via activation of adenosine A2A receptors. Pain 2024:00006396-990000000-00589. [PMID: 38709489 DOI: 10.1097/j.pain.0000000000003265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Accepted: 03/19/2024] [Indexed: 05/07/2024]
Abstract
ABSTRACT Terpenes are small hydrocarbon compounds that impart aroma and taste to many plants, including Cannabis sativa. A number of studies have shown that terpenes can produce pain relief in various pain states in both humans and animals. However, these studies were methodologically limited and few established mechanisms of action. In our previous work, we showed that the terpenes geraniol, linalool, β-pinene, α-humulene, and β-caryophyllene produced cannabimimetic behavioral effects via multiple receptor targets. We thus expanded this work to explore the potential antinociception and mechanism of these Cannabis terpenes in a mouse model of chronic pain. We first tested for antinociception by injecting terpenes (200 mg/kg, IP) into male and female CD-1 mice with mouse models of chemotherapy-induced peripheral neuropathy (CIPN) or lipopolysaccharide-induced inflammatory pain, finding that the terpenes produced roughly equal antinociception to 10 mg/kg morphine or 3.2 mg/kg WIN55,212. We further found that none of the terpenes produced reward as measured by conditioned place preference, while low doses of terpene (100 mg/kg) combined with morphine (3.2 mg/kg) produced enhanced antinociception vs either alone. We then used the adenosine A2A receptor (A2AR) selective antagonist istradefylline (3.2 mg/kg, IP) and spinal cord-specific CRISPR knockdown of the A2AR to identify this receptor as the mechanism for terpene antinociception in CIPN. In vitro cAMP and binding studies and in silico modeling studies further suggested that the terpenes act as A2AR agonists. Together these studies identify Cannabis terpenes as potential therapeutics for chronic neuropathic pain and identify a receptor mechanism for this activity.
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Affiliation(s)
- Abigail M Schwarz
- Department of Pharmacology, College of Medicine, University of Arizona, Tucson, AZ, United States
| | - Attila Keresztes
- Department of Pharmacology, College of Medicine, University of Arizona, Tucson, AZ, United States
| | - Thai Bui
- Department of Pharmacology, College of Medicine, University of Arizona, Tucson, AZ, United States
| | - Ryan Hecksel
- Department of Pharmacology, College of Medicine, University of Arizona, Tucson, AZ, United States
| | - Adrian Peña
- Department of Pharmacology, College of Medicine, University of Arizona, Tucson, AZ, United States
| | - Brianna Lent
- Department of Pharmacology, College of Medicine, University of Arizona, Tucson, AZ, United States
| | - Zhan-Guo Gao
- Molecular Recognition Section, Laboratory of Bioorganic Chemistry, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD, United States
| | - Martín Gamez-Rivera
- Department of Pharmacology, College of Medicine, University of Arizona, Tucson, AZ, United States
| | - Caleb A Seekins
- Department of Pharmacology, College of Medicine, University of Arizona, Tucson, AZ, United States
| | - Kerry Chou
- Department of Pharmacology, College of Medicine, University of Arizona, Tucson, AZ, United States
| | - Taylor L Appel
- Department of Pharmacology, College of Medicine, University of Arizona, Tucson, AZ, United States
| | - Kenneth A Jacobson
- Molecular Recognition Section, Laboratory of Bioorganic Chemistry, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD, United States
| | - Fahad A Al-Obeidi
- Department of Pharmacology, College of Medicine, University of Arizona, Tucson, AZ, United States
| | - John M Streicher
- Department of Pharmacology, College of Medicine, University of Arizona, Tucson, AZ, United States
- Comprehensive Center for Pain and Addiction, University of Arizona, Tucson, AZ, United States
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Wang L, Liu X, Chen W, Sun Z. Studies on the Inhibition Mechanism of Linalyl Alcohol against the Spoilage Microorganism Brochothrix thermosphacta. Foods 2024; 13:244. [PMID: 38254545 PMCID: PMC10814832 DOI: 10.3390/foods13020244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2023] [Revised: 11/10/2023] [Accepted: 11/17/2023] [Indexed: 01/24/2024] Open
Abstract
The aim of this study was to investigate the bacterial inhibitory ability and mechanism of action of linalyl alcohol against B. thermosphacta. Linalyl alcohol causes the leakage of intracellular material by disrupting the cell wall and exposing the hydrophobic phospholipid bilayer, which binds to bacterial membrane proteins and alters their structure. In addition, linalyl alcohol causes cell membrane damage by affecting fatty acids and proteins in the cell membrane. By inhibiting the synthesis of macromolecular proteins, the normal physiological functions of the bacteria are altered. Linalyl alcohol binds to DNA in both grooved and embedded modes, affecting the normal functioning of B. thermosphacta, as demonstrated through a DNA interaction analysis.
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Affiliation(s)
| | | | | | - Zhichang Sun
- College of Food Sciences & Engineering, Hainan University, 58 People Road, Haikou 570228, China; (L.W.); (X.L.); (W.C.)
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da Silva PR, Nunes Pazos ND, de Andrade JC, de Sousa NF, Oliveira Pires HF, de Figueiredo Lima JL, Dias AL, da Silva Stiebbe Salvadori MG, de Oliveira Golzio AMF, de Castro RD, Scotti MT, Patil VM, Bezerra Felipe CF, de Almeida RN, Scotti L. An In Silico Approach to Exploring the Antinociceptive Biological Activities of Linalool and its Metabolites. Mini Rev Med Chem 2024; 24:1556-1574. [PMID: 38243945 DOI: 10.2174/0113895575261945231122062659] [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: 07/09/2023] [Revised: 10/18/2023] [Accepted: 10/25/2023] [Indexed: 01/22/2024]
Abstract
Pain is characterized by the unpleasant sensory and emotional sensation associated with actual or potential tissue damage, whereas nociception refers to the mechanism by which noxious stimuli are transmitted from the periphery to the CNS. The main drugs used to treat pain are nonsteroidal anti-inflammatory drugs (NSAIDs) and opioid analgesics, which have side effects that limit their use. Therefore, in the search for new drugs with potential antinociceptive effects, essential oils have been studied, whose constituents (monoterpenes) are emerging as a new therapeutic possibility. Among them, linalool and its metabolites stand out. The present study aims to investigate the antinociceptive potential of linalool and its metabolites through a screening using an in silico approach. Molecular docking was used to evaluate possible interactions with important targets involved in antinociceptive activity, such as α2-adrenergic, GABAergic, muscarinic, opioid, adenosinergic, transient potential, and glutamatergic receptors. The compounds in the investigated series obtained negative energies for all enzymes, representing satisfactory interactions with the targets and highlighting the multi-target potential of the L4 metabolite. Linalool and its metabolites have a high likelihood of modulatory activity against the targets involved in nociception and are potential candidates for future drugs.
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Affiliation(s)
- Pablo Rayff da Silva
- Psychopharmacology Laboratory, Institute of Drugs and Medicines Research, Federal University of Paraíba, 58051- 085, Via Ipê Amarelo, S/N, João Pessoa, Paraíba, Brazil
| | - Natalia Diniz Nunes Pazos
- Psychopharmacology Laboratory, Institute of Drugs and Medicines Research, Federal University of Paraíba, 58051- 085, Via Ipê Amarelo, S/N, João Pessoa, Paraíba, Brazil
| | - Jéssica Cabral de Andrade
- Psychopharmacology Laboratory, Institute of Drugs and Medicines Research, Federal University of Paraíba, 58051- 085, Via Ipê Amarelo, S/N, João Pessoa, Paraíba, Brazil
| | - Natália Ferreira de Sousa
- Cheminformatics Laboratory, Institute of Drugs and Medicines Research, Federal University of Paraíba, 58051-900, Via Ipê Amarelo, S/N, João Pessoa, Paraíba, Brazil
| | - Hugo Fernandes Oliveira Pires
- Psychopharmacology Laboratory, Institute of Drugs and Medicines Research, Federal University of Paraíba, 58051- 085, Via Ipê Amarelo, S/N, João Pessoa, Paraíba, Brazil
| | - Jaislânia Lucena de Figueiredo Lima
- Psychopharmacology Laboratory, Institute of Drugs and Medicines Research, Federal University of Paraíba, 58051- 085, Via Ipê Amarelo, S/N, João Pessoa, Paraíba, Brazil
| | - Arthur Lins Dias
- Psychopharmacology Laboratory, Institute of Drugs and Medicines Research, Federal University of Paraíba, 58051- 085, Via Ipê Amarelo, S/N, João Pessoa, Paraíba, Brazil
| | | | | | - Ricardo Dias de Castro
- Psychopharmacology Laboratory, Institute of Drugs and Medicines Research, Federal University of Paraíba, 58051- 085, Via Ipê Amarelo, S/N, João Pessoa, Paraíba, Brazil
| | - Marcus T Scotti
- Cheminformatics Laboratory, Institute of Drugs and Medicines Research, Federal University of Paraíba, 58051-900, Via Ipê Amarelo, S/N, João Pessoa, Paraíba, Brazil
| | - Vaishali M Patil
- KIET School of Pharmacy, KIET Group of Institutions, Ghaziabad 201206, Uttar Pradesh, India
| | - Cícero Francisco Bezerra Felipe
- Psychopharmacology Laboratory, Institute of Drugs and Medicines Research, Federal University of Paraíba, 58051- 085, Via Ipê Amarelo, S/N, João Pessoa, Paraíba, Brazil
| | - Reinaldo Nóbrega de Almeida
- Psychopharmacology Laboratory, Institute of Drugs and Medicines Research, Federal University of Paraíba, 58051- 085, Via Ipê Amarelo, S/N, João Pessoa, Paraíba, Brazil
| | - Luciana Scotti
- Cheminformatics Laboratory, Institute of Drugs and Medicines Research, Federal University of Paraíba, 58051-900, Via Ipê Amarelo, S/N, João Pessoa, Paraíba, Brazil
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Hashimoto M, Takahashi K, Ohta T. Inhibitory effects of linalool, an essential oil component of lavender, on nociceptive TRPA1 and voltage-gated Ca 2+ channels in mouse sensory neurons. Biochem Biophys Rep 2023; 34:101468. [PMID: 37102121 PMCID: PMC10123348 DOI: 10.1016/j.bbrep.2023.101468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2022] [Revised: 03/14/2023] [Accepted: 04/05/2023] [Indexed: 04/28/2023] Open
Abstract
Linalool, an essential oil component of lavender is commonly used in fragrances. It is known that linalool has anxiolytic, sedative, and analgesic actions. However, the mechanism of its analgesic action has not yet been fully clarified. Pain signals elicited by the activation of nociceptors on peripheral neurons are transmitted to the central nervous system. In the present study, we investigated the effects of linalool on transient receptor potential (TRP) channels and voltage-gated channels, both of which are important for pain signaling via nociceptors in somatosensory neurons. For detection of channel activity, the intracellular Ca2+ concentration ([Ca2+]i) was measured using a Ca2+-imaging system, and membrane currents were recorded using the whole-cell patch-clamp technique. Analgesic actions were also examined in vivo. In mouse sensory neurons linalool at concentrations that did not induce [Ca2+]i increases did not affect [Ca2+]i responses to capsaicin and acids, TRPV1 agonists, but suppressed those induced by allyl isothiocyanate (AITC) and carvacrol, TRPA1 agonists. Similar inhibitory effects of linalool were observed in cells that heterologously expressed TRPA1. Linalool attenuated the [Ca2+]i increases induced by KCl and voltage-gated Ca2+ currents but only slightly suppressed voltage-gated Na+currents in mouse sensory neurons. Linalool diminished TRPA1-mediated nociceptive behaviors. The present data suggest that linalool exerts an analgesic action via the suppression of nociceptive TRPA1 and voltage-gated Ca2+ channels.
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Affiliation(s)
- Miho Hashimoto
- Department of Veterinary Pharmacology, Faculty of Agriculture, Tottori University, Tottori, Japan
- Joint Graduate School of Veterinary Sciences, Gifu University, Tottori University, Tottori, Japan
| | - Kenji Takahashi
- Department of Veterinary Pharmacology, Faculty of Agriculture, Tottori University, Tottori, Japan
- Joint Graduate School of Veterinary Sciences, Gifu University, Tottori University, Tottori, Japan
| | - Toshio Ohta
- Department of Veterinary Pharmacology, Faculty of Agriculture, Tottori University, Tottori, Japan
- Joint Graduate School of Veterinary Sciences, Gifu University, Tottori University, Tottori, Japan
- Corresponding author. Department of Veterinary Pharmacology, Faculty of Agriculture, Tottori University, Tottori, 680-8553, Japan.
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Nawaz S, Muhammad Irfan H, Akram M, Jahan S. Linalool: Monoterpene alcohol effectiveness in chronic synovitis through lowering Interleukin-17, spleen and thymus indices. Int Immunopharmacol 2023; 121:110517. [PMID: 37348232 DOI: 10.1016/j.intimp.2023.110517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Revised: 06/07/2023] [Accepted: 06/13/2023] [Indexed: 06/24/2023]
Abstract
Interleukin-17 has a positive role in the initial induction and late chronic phases of many inflammatory disorders like arthritis. This cytokine has a strong option for therapeutic targeting due to the fact that it was found in the inflamed joints of individual with rheumatoid arthritis (RA) and persuasive evidence from experimental arthritis models indicating its pro-inflammatory actions. IL-17 suppression lessened the asperity of arthritis. The present study aimed to assess the anti-arthritic potential of linalool in a model of chronic joint inflammation (CFA-mediated rheumatoid arthritis) in rats. Linalool markedly lowered spleen and thymus indices as opposed to arthritic control. The over-formation of IL-17, COX-2, TNF-α IL-1β, iNOS and IL-6 were markedly impaired in all linalool treated rats, but IL-10 was raised as compared to arthritic animals in Real time-PCR. There was reduction in associated parameters like paw volume, arthritic index, mobility score, and flexion pain score and a marked increase in stance score in CFA model as compared to the arthritic control group. Furthermore, there was improvement in body weight, hematological, tissue, and radiological parameters in the CFA-model. Molecular docking study exhibited strong binding interaction of linalool with IL-17, PGE-2, iNOS and COX-2, thus providing a good correlation among experimental and theoretical results. The current findings show that linalool reduces adjuvant arthritis by suppressing pro-inflammatory mediators, arthritic development, and spleen and thymus indices. Thus, linalool may be employed therapeutically to alleviate arthritis in humans.
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Affiliation(s)
- Shoaib Nawaz
- College of Pharmacy University of Sargodha, Sargodha, Pakistan
| | | | - Muhammad Akram
- College of Pharmacy University of Sargodha, Sargodha, Pakistan
| | - Shah Jahan
- Department of Immunology, University of Health Sciences, Lahore 54600, Pakistan
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Hsouna AB, Sadaka C, Beyrouthy ME, Hfaiedh M, Dhifi W, Brini F, Saad RB, Mnif W. Immunomodulatory effect of Linalool (Lin) against CCl 4 -induced hepatotoxicity and oxidative damage in rats. Biotechnol Appl Biochem 2023; 70:469-477. [PMID: 35748559 DOI: 10.1002/bab.2371] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Accepted: 05/01/2022] [Indexed: 11/11/2022]
Abstract
The current study explored the hepatoprotective and immunomodulatory effects of Linalool (Lin) against carbon tetrachloride (CCl4 )-induced toxicity in mice. Four study groups (n = 8 each) were used: (1) a negative control group and (2) a toxicity control group (single dose of CCl4 administered on day 14 as 1 mL/kg of CCL4 in 1% olive oil). Intraperitoneally (i.p.)), and two experimental groups where mice were treated with either (3) Lin (25 mg/kg b.w., orally, daily for 15 days) or (4) pretreated with Lin (25 mg/kg b.w., orally, daily for 14 days) and intoxicated with CCl4 (1 mL/kg of CCL4 in 1% olive oil. i.p.) on day 14. The levels of the anti-inflammatory cytokine interleukin 10 (IL-10), the proinflammatory cytokines TNF-α, IL-6, and TGF-1β, and the histopathology of the liver were assessed. According to our findings, IL-10 concentrations were significantly increased in Lin-treated groups, while other cytokine levels were marked by a considerable decrease in the toxicity model group (CCl4 -treated group). Histopathological examinations of liver tissues showed that the Lin-treated groups had an almost normal structure. The current findings showed that Lin could inhibit CCl4 -induced liver injury in mice, which warrants further investigation of Lin as a potential protective and therapeutic agent against hepatotoxicity.
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Affiliation(s)
- Anis Ben Hsouna
- Department of Life Sciences, Faculty of Sciences of Gafsa, Gafsa, Tunisia.,Laboratory of Biotechnology and Plant Improvement, Centre of Biotechnology of Sfax, Sfax, Tunisia
| | - Carmen Sadaka
- Department of Infectious Diseases, Infection Control, and Employee Health, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | | | - Mbarka Hfaiedh
- Research Unit of Active Biomolecules Valorisation, Higher Institute of Applied Biology of Medicine, University of Gabes, Medenine, Tunisia
| | - Wissal Dhifi
- Laboratory of Biotechnology and Valorisation of Bio-GeoRessources, Higher Institute of Biotechnology of Sidi Thabet, University of Manouba, BiotechPole of Sidi Thabet, Ariana, Tunisia
| | - Faical Brini
- Laboratory of Biotechnology and Plant Improvement, Centre of Biotechnology of Sfax, Sfax, Tunisia
| | - Rania Ben Saad
- Laboratory of Biotechnology and Plant Improvement, Centre of Biotechnology of Sfax, Sfax, Tunisia
| | - Wissem Mnif
- Department of Chemistry, Faculty of Sciences and Arts in Balgarn, University of Bisha, Bisha, Saudi Arabia.,ISBST, BVBGR-LR11ES31, University of Manouba, Biotechpole Sidi Thabet, Ariana, Tunisia
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Olfactory Stimulation Successfully Modulates the Neurochemical, Biochemical and Behavioral Phenotypes of the Visceral Pain. Molecules 2022; 27:molecules27217659. [DOI: 10.3390/molecules27217659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Revised: 10/24/2022] [Accepted: 11/02/2022] [Indexed: 11/09/2022] Open
Abstract
Visceral pain (VP) is the organ-derived nociception in which increased inflammatory reaction and exaggerated activation of the central nucleus of the amygdala (CeA) may contribute to this deficiency. Considering the amygdala also serves as the integration center for olfaction, the present study aimed to determine whether olfactory stimulation (OS) would effectively depress over-activation and inflammatory reaction in CeA, and successfully relieve VP-induced abnormalities. Adult rats subjected to intraperitoneal injection of acetic acid inhaled lavender essential oil for 2 or 4 h. The potential benefits of OS were determined by measuring the pro-inflammatory cytokine level, intracellular potassium and the upstream small-conductance calcium-activated potassium (SK) channel expression, together with detecting the stress transmitters that participated in the modulation of CeA activity. Results indicated that in VP rats, strong potassium intensity, reduced SK channel protein level, and increased corticotropin-releasing factor, c-fos, and substance P immuno-reactivities were detected in CeA. Enhanced CeA activation corresponded well with increased inflammatory reaction and decreased locomotion, respectively. However, in rats subjected to VP and received OS, all above parameters were significantly returned to normal levels with higher change detected in treating OS of 4h. As OS successfully depresses inflammation and CeA over-activation, application of OS may serve as an alternative and effective strategy to efficiently relieve VP-induced deficiency.
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Respiratory Depression as Antibacterial Mechanism of Linalool against Pseudomonas fragi Based on Metabolomics. Int J Mol Sci 2022; 23:ijms231911586. [PMID: 36232887 PMCID: PMC9570108 DOI: 10.3390/ijms231911586] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2022] [Revised: 09/17/2022] [Accepted: 09/26/2022] [Indexed: 11/29/2022] Open
Abstract
Linalool showed a broad-spectrum antibacterial effect, but few studies have elucidated the antibacterial mechanism of linalool on Pseudomonas fragi (P. fragi) to date. The present study aimed to uncover the antimicrobial activity and potential mechanism of linalool against P. fragi by determining key enzyme activities and metabolites combined with a high-throughput method and metabolomic pathway analysis. As a result, linalool had excellent inhibitory activity against P. fragi with MIC of 1.5 mL/L. In addition, the presence of linalool significantly altered the intracellular metabolic profile and a total of 346 differential metabolites were identified, of which 201 were up-regulated and 145 were down-regulated. The highlight pathways included beta-alanine metabolism, pantothenic acid and CoA metabolism, alanine, aspartate and glutamate metabolism, nicotinate and nicotinamide metabolism. Overall, linalool could cause metabolic disorders in cells, and the main metabolic pathways involved energy metabolism, amino acid metabolism and nucleic acid metabolism. In particular, the results of intracellular ATP content and related enzymatic activities (ATPase, SDH, and GOT) also highlighted that energy limitation and amino acid disturbance occurred intracellularly. Together, these findings provided new insights into the mechanism by which linalool inhibited P. fragi and theoretical guidance for its development as a natural preservative.
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Lavender Improves Fatigue Symptoms in Multiple Sclerosis Patients: A Double-blind, Randomized Controlled Trial. Mult Scler Relat Disord 2022; 65:104000. [DOI: 10.1016/j.msard.2022.104000] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Revised: 06/04/2022] [Accepted: 06/24/2022] [Indexed: 11/21/2022]
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Rodriguez CEB, Ouyang L, Kandasamy R. Antinociceptive effects of minor cannabinoids, terpenes and flavonoids in Cannabis. Behav Pharmacol 2022; 33:130-157. [PMID: 33709984 DOI: 10.1097/fbp.0000000000000627] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Cannabis has been used for centuries for its medicinal properties. Given the dangerous and unpleasant side effects of existing analgesics, the chemical constituents of Cannabis have garnered significant interest for their antinociceptive, anti-inflammatory and neuroprotective effects. To date, Δ9-tetrahydrocannabinol (THC) and cannabidiol (CBD) remain the two most widely studied constituents of Cannabis in animals. These studies have led to formulations of THC and CBD for human use; however, chronic pain patients also use different strains of Cannabis (sativa, indica and ruderalis) to alleviate their pain. These strains contain major cannabinoids, such as THC and CBD, but they also contain a wide variety of cannabinoid and noncannabinoid constituents. Although the analgesic effects of Cannabis are attributed to major cannabinoids, evidence indicates other constituents such as minor cannabinoids, terpenes and flavonoids also produce antinociception against animal models of acute, inflammatory, neuropathic, muscle and orofacial pain. In some cases, these constituents produce antinociception that is equivalent or greater compared to that produced by traditional analgesics. Thus, a better understanding of the extent to which these constituents produce antinociception alone in animals is necessary. The purposes of this review are to (1) introduce the different minor cannabinoids, terpenes, and flavonoids found in Cannabis and (2) discuss evidence of their antinociceptive properties in animals.
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Affiliation(s)
- Carl Erwin B Rodriguez
- Department of Psychology, California State University, East Bay, Hayward, California, USA
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Sobhani Z, Mohtashami L, Amiri MS, Ramezani M, Emami SA, Simal‐Gandara J. Ethnobotanical and phytochemical aspects of the edible herb
Coriandrum sativum
L. J Food Sci 2022; 87:1386-1422. [PMID: 35279837 PMCID: PMC9314633 DOI: 10.1111/1750-3841.16085] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2021] [Revised: 01/11/2022] [Accepted: 01/23/2022] [Indexed: 12/30/2022]
Abstract
Coriandrum sativum (coriander) is an edible herb in the family Apiaceae. The leaves, fruits, and stems of C. sativum have long been used as culinary spice due to their favorable odor. Traditional practitioners used this plant for treating different diseases like blepharitis, scabies, aphthous stomatitis, laryngitis, headache, and palpitation. In modern researches, coriander has demonstrated anxiolytic, anticonvulsant, antimigraine, neuroprotective, analgesic, diuretic, hypoglycemic, hypolipidemic, hypotensive, anticancer, and antioxidant activities. Coriander contains a wide range of bioactive phytochemicals among which phenylpropenes, terpenoids, isocoumarins, phytosterols, and fatty acids are the most important. This review provides information about the botanical and ethnobotanical aspects, chemical profile, therapeutic uses in Islamic traditional medicine (ITM), and recent pharmacological studies of coriander effects. The results have shown that coriander and its monoterpenoid compound, linalool, can be considered as potential drug candidates for treating metabolic syndrome and different inflammatory conditions especially neural and CNS diseases.
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Affiliation(s)
- Zahra Sobhani
- Department of Traditional Pharmacy, School of Pharmacy Mashhad University of Medical Sciences Mashhad Iran
| | - Leila Mohtashami
- Department of Pharmacognosy, School of Pharmacy Mashhad University of Medical Sciences Mashhad Iran
| | | | - Mahin Ramezani
- Nanotechnology Research Center Mashhad University of Medical Sciences Mashhad Iran
- Pharmaceutical Research Center Mashhad University of Medical Sciences Mashhad Iran
| | - Seyed Ahmad Emami
- Department of Traditional Pharmacy, School of Pharmacy Mashhad University of Medical Sciences Mashhad Iran
| | - Jesus Simal‐Gandara
- Nutrition and Bromatology Group, Department of Analytical Chemistry and Food Science, Faculty of Food Science and Technology University of Vigo—Ourense Campus Ourense Spain
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Dadjoo S, Michelogiannakis D, Rossouw PE, Javed F. Potential adjunct therapies for the management of temporomandibular disorders: An evidence-based review. Cranio 2022:1-11. [PMID: 35156534 DOI: 10.1080/08869634.2022.2036437] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
OBJECTIVE The aim was to review the role of adjuvant therapies that may potentially contribute toward the management of temporomandibular disorders (TMD). METHODS The addressed focused question was, "Are there any adjuvant therapies that may contribute toward the management of TMD?". Indexed databases were searched up to June 2021. The eligibility criteria were the following: (a) original clinical studies and (b) randomized controlled clinical trials (RCTs). RESULTS Adjuvant therapies were comprised of acupuncture, manual therapy, jaw exercises, dietary modifications, botulinum toxin therapy, and photobiomodulation. Short-term follow-up results from each of these RCTs showed beneficial effects in terms of pain reduction and improvements in jaw movement among patients with TMD. There are no long-term follow-up results in this regard. CONCLUSION The most effective adjunct treatment for managing TMD remains unknown, primarily due to a lack of sufficient scientific evidence.
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Affiliation(s)
- Shaahin Dadjoo
- Department of Orthodontics and Dentofacial Orthopedics, Eastman Institute for Oral Health, University of Rochester, Rochester, NY, USA
| | - Dimitrios Michelogiannakis
- Department of Orthodontics and Dentofacial Orthopedics, Eastman Institute for Oral Health, University of Rochester, Rochester, NY, USA
| | - P Emile Rossouw
- Department of Orthodontics and Dentofacial Orthopedics, Eastman Institute for Oral Health, University of Rochester, Rochester, NY, USA
| | - Fawad Javed
- Department of Orthodontics and Dentofacial Orthopedics, Eastman Institute for Oral Health, University of Rochester, Rochester, NY, USA
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Liktor-Busa E, Keresztes A, LaVigne J, Streicher JM, Largent-Milnes TM. Analgesic Potential of Terpenes Derived from Cannabis sativa. Pharmacol Rev 2021; 73:98-126. [PMID: 34663685 PMCID: PMC11060501 DOI: 10.1124/pharmrev.120.000046] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Pain prevalence among adults in the United States has increased 25% over the past two decades, resulting in high health-care costs and impacts to patient quality of life. In the last 30 years, our understanding of pain circuits and (intra)cellular mechanisms has grown exponentially, but this understanding has not yet resulted in improved therapies. Options for pain management are limited. Many analgesics have poor efficacy and are accompanied by severe side effects such as addiction, resulting in a devastating opioid abuse and overdose epidemic. These problems have encouraged scientists to identify novel molecular targets and develop alternative pain therapeutics. Increasing preclinical and clinical evidence suggests that cannabis has several beneficial pharmacological activities, including pain relief. Cannabis sativa contains more than 500 chemical compounds, with two principle phytocannabinoids, Δ9-tetrahydrocannabinol (Δ9-THC) and cannabidiol (CBD). Beyond phytocannabinoids, more than 150 terpenes have been identified in different cannabis chemovars. Although the predominant cannabinoids, Δ9-THC and CBD, are thought to be the primary medicinal compounds, terpenes including the monoterpenes β-myrcene, α-pinene, limonene, and linalool, as well as the sesquiterpenes β-caryophyllene and α-humulene may contribute to many pharmacological properties of cannabis, including anti-inflammatory and antinociceptive effects. The aim of this review is to summarize our current knowledge about terpene compounds in cannabis and to analyze the available scientific evidence for a role of cannabis-derived terpenes in modern pain management. SIGNIFICANCE STATEMENT: Decades of research have improved our knowledge of cannabis polypharmacy and contributing phytochemicals, including terpenes. Reform of the legal status for cannabis possession and increased availability (medicinal and recreational) have resulted in cannabis use to combat the increasing prevalence of pain and may help to address the opioid crisis. Better understanding of the pharmacological effects of cannabis and its active components, including terpenes, may assist in identifying new therapeutic approaches and optimizing the use of cannabis and/or terpenes as analgesic agents.
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Affiliation(s)
| | - Attila Keresztes
- Department of Pharmacology, University of Arizona, Tucson, Arizona
| | - Justin LaVigne
- Department of Pharmacology, University of Arizona, Tucson, Arizona
| | - John M Streicher
- Department of Pharmacology, University of Arizona, Tucson, Arizona
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Orexinergic descending inhibitory pathway mediates linalool odor-induced analgesia in mice. Sci Rep 2021; 11:9224. [PMID: 33927235 PMCID: PMC8085205 DOI: 10.1038/s41598-021-88359-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Accepted: 04/12/2021] [Indexed: 11/08/2022] Open
Abstract
Linalool odor exposure induces an analgesic effect in mice. This effect disappeared in the anosmic model mice, indicating that olfactory input evoked by linalool odor triggered this effect. Furthermore, hypothalamic orexinergic neurons play a pivotal role in this effect. However, the neuronal circuit mechanisms underlying this effect have not been fully addressed. In this study, we focused on the descending orexinergic projection to the spinal cord and examined whether this pathway contributes to the effect. We assessed the effect of intrathecal administration of orexin receptor antagonists on linalool odor-induced analgesia in the tail capsaicin test. We found that the selective orexin type 1 receptor antagonist, but not the selective orexin type 2 receptor antagonist, prevented the odor-induced analgesic effect. Furthermore, immunohistochemical analyses of c-Fos expression induced by the capsaicin test revealed that neuronal activity of spinal cord neurons was suppressed by linalool odor exposure, which was prevented by intrathecal administration of the orexin 1 receptor antagonist. These results indicate that linalool odor exposure drives the orexinergic descending pathway and suppresses nociceptive information flow at the spinal level.
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LaVigne JE, Hecksel R, Keresztes A, Streicher JM. Cannabis sativa terpenes are cannabimimetic and selectively enhance cannabinoid activity. Sci Rep 2021; 11:8232. [PMID: 33859287 PMCID: PMC8050080 DOI: 10.1038/s41598-021-87740-8] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Accepted: 03/31/2021] [Indexed: 12/19/2022] Open
Abstract
Limited evidence has suggested that terpenes found in Cannabis sativa are analgesic, and could produce an "entourage effect" whereby they modulate cannabinoids to result in improved outcomes. However this hypothesis is controversial, with limited evidence. We thus investigated Cannabis sativa terpenes alone and with the cannabinoid agonist WIN55,212 using in vitro and in vivo approaches. We found that the terpenes α-humulene, geraniol, linalool, and β-pinene produced cannabinoid tetrad behaviors in mice, suggesting cannabimimetic activity. Some behaviors could be blocked by cannabinoid or adenosine receptor antagonists, suggesting a mixed mechanism of action. These behavioral effects were selectively additive with WIN55,212, suggesting terpenes can boost cannabinoid activity. In vitro experiments showed that all terpenes activated the CB1R, while some activated other targets. Our findings suggest that these Cannabis terpenes are multifunctional cannabimimetic ligands that provide conceptual support for the entourage effect hypothesis and could be used to enhance the therapeutic properties of cannabinoids.
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Affiliation(s)
- Justin E LaVigne
- Department of Pharmacology, College of Medicine, University of Arizona, Tucson, AZ, USA
| | - Ryan Hecksel
- Department of Pharmacology, College of Medicine, University of Arizona, Tucson, AZ, USA
| | - Attila Keresztes
- Department of Pharmacology, College of Medicine, University of Arizona, Tucson, AZ, USA
| | - John M Streicher
- Department of Pharmacology, College of Medicine, University of Arizona, Tucson, AZ, USA.
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Yuan R, Zhang D, Yang J, Wu Z, Luo C, Han L, Yang F, Lin J, Yang M. Review of aromatherapy essential oils and their mechanism of action against migraines. JOURNAL OF ETHNOPHARMACOLOGY 2021; 265:113326. [PMID: 32877718 DOI: 10.1016/j.jep.2020.113326] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Revised: 07/23/2020] [Accepted: 08/25/2020] [Indexed: 06/11/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Migraines have become a major threat to human health, as they significantly affect human health and quality of life due to a high prevalence rate, attack rate and pain intensity. Aromatherapy, with its comfortable and pleasant natural characteristics and rapid and efficient characteristics, is widely favored by patients in the folk. Chinese folk also have the application history and related records of aromatic plants in the treatment of migraine. AIM OF THE STUDY This study was conducted to review the pathogenesis of migraine, the application of plant essential oils in the treatment of migraine, and further explore the material basis and mechanism of action of plant essential oils against migraine. MATERIALS AND METHODS Search the electronic literature of essential oils with anti-migraine effect in Google Scholar, PubMed and China National Knowledge Infrastructure, and further search the research situation of the monomer components of essential oils in migraine, inflammation, pain and other aspects. RESULTS studies show that there are 10 types of plant essential oils that could relieve migraine symptoms, and that 16 monomers may play a role in migraine treatment by effectively inhibiting neurogenic inflammation, hyperalgesia and balancing vasorelaxation. CONCLUSION Aromatic plant essential oils can relieve migraine effectively, these findings can be used as an important part of the development of anti-migraine drugs.
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Affiliation(s)
- Ruifang Yuan
- Pharmacy School, State Key Laboratory of Characteristic Chinese Medicine Resources in Southwest China, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, PR China
| | - Dingkun Zhang
- Pharmacy School, State Key Laboratory of Characteristic Chinese Medicine Resources in Southwest China, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, PR China
| | - Jinhui Yang
- Sichuan Baicao Jinggong Biotechnology Co., Ltd., Chengdu, 610000, PR China
| | - Zhenfeng Wu
- Jiangxi University of Traditional Chinese Medicine, Nanchang, 330004, PR China
| | - Chuanhong Luo
- Pharmacy School, State Key Laboratory of Characteristic Chinese Medicine Resources in Southwest China, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, PR China
| | - Li Han
- Pharmacy School, State Key Laboratory of Characteristic Chinese Medicine Resources in Southwest China, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, PR China
| | - Fangli Yang
- Sinopharm Sichuan Orthopedic Tehnology & Equipment Co., Ltd., Chengdu, 610000, PR China
| | - Junzhi Lin
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, 610072, PR China; School of Clinical Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, 610072, PR China.
| | - Ming Yang
- Jiangxi University of Traditional Chinese Medicine, Nanchang, 330004, PR China.
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Mazani M, Rezagholizadeh L, Shamsi S, Mahdavifard S, Ojarudi M, Salimnejad R, Salimi A. Protection of CCl 4-induced hepatic and renal damage by linalool. Drug Chem Toxicol 2020; 45:963-971. [PMID: 32657163 DOI: 10.1080/01480545.2020.1792487] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
The aim of the current study is to determine the protective and therapeutic effects of linalool against carbon tetrachloride (CCl4)-induced hepatoxicity and nephrotoxicity. Six-week-old male Wistar rats were divided into five groups: Control group (a regular diet); CCl4 group (1 ml/kg dissolved in olive oil, intraperitoneally at 14th day); pretreatment group (25 mg/kg linalool daily + CCl4 14thday); post-treatment group (25 mg/kg linalool 2, 6, 24, and 48 h after the injection of CCl4 at 14th day); and linalool group (25 mg/kg linalool daily, orally). All animals were sacrificed, tissue and blood samples were collected to analysis. Administration of CCl4 resulted in a marked increase in hepatic (aspartate aminotransferase, alanine transaminase, and alkaline phosphatase) and renal (blood urea nitrogen and creatinine) markers. Also, CCl4 resulted in pathological damages, a significant increase in the concentration of malondialdehyde , tumor necrosis factor-alpha, and Interleukin 6 , expression of nuclear factor kappa-light-chain-enhancer of activated B cells and a significant decrease in the levels of serum total protein, serum albumin, and antioxidants. However, in pretreatment and post treatment groups, linalool significantly inhibited CCl4- induced hepatic and nephric damages. These results demonstrate that linalool has protective and therapeutic effects in an in vitro model of CCL4-induced hepatic and nephric damage, proposing linalool as a potential therapeutic agent against chemical and drug induced hepatotoxicity and nephrotoxicity.
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Affiliation(s)
- Mohammad Mazani
- Department of Biochemistry, School of Medicine, Ardabil University of Medical Sciences, Ardabil, Iran
| | - Lotfollah Rezagholizadeh
- Department of Biochemistry, School of Medicine, Ardabil University of Medical Sciences, Ardabil, Iran
| | - Saeedeh Shamsi
- Department of Pharmacology and Toxicology, School of Pharmacy, Ardabil University of Medical Sciences, Ardabil, Iran
| | - Sina Mahdavifard
- Department of Biochemistry, School of Medicine, Ardabil University of Medical Sciences, Ardabil, Iran
| | - Masoud Ojarudi
- Department of Biochemistry, Faculty of Sciences, Payame Noor University, Tehran, Iran
| | - Ramin Salimnejad
- Department of Anatomical Sciences and Pathology, School of Medicine, Ardabil University of Medical Sciences, Ardabil, Iran
| | - Ahmad Salimi
- Department of Pharmacology and Toxicology, School of Pharmacy, Ardabil University of Medical Sciences, Ardabil, Iran
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Patten T, De Biasi M. History repeats itself: Role of characterizing flavors on nicotine use and abuse. Neuropharmacology 2020; 177:108162. [PMID: 32497589 DOI: 10.1016/j.neuropharm.2020.108162] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Revised: 05/22/2020] [Accepted: 05/24/2020] [Indexed: 12/13/2022]
Abstract
The popularity of e-cigarettes has skyrocketed in recent years, and most vapers use flavored e-cigarette products. Consumption of flavored e-cigarettes exceeds that of combustible cigarettes and other tobacco products among adolescents, who are particularly vulnerable to becoming nicotine dependent. Flavorings have been used by the tobacco industry since the 17th century, but the use of flavors by the e-cigarette industry to create products with "characterizing" flavors (i.e. flavors other than tobacco or menthol) has sparked a public health debate. This review addresses the possibility that characterizing flavors make nicotine more appealing, rewarding and addictive. It also discusses ways in which preclinical and clinical studies could improve our understanding of the mechanisms by which flavors may alter nicotine reward and reinforcement. This article is part of the special issue on 'Contemporary Advances in Nicotine Neuropharmacology'.
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Affiliation(s)
- Theresa Patten
- Pharmacology Graduate Group, Perelman School of Medicine, University of Pennsylvania, Philadelphia, USA
| | - Mariella De Biasi
- Pharmacology Graduate Group, Perelman School of Medicine, University of Pennsylvania, Philadelphia, USA; Department of Psychiatry, Perelman School of Medicine, University of Pennsylvania, Philadelphia, USA.
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Li AS, Iijima A, Huang J, Li QX, Chen Y. Putative Mode of Action of the Monoterpenoids Linalool, Methyl Eugenol, Estragole, and Citronellal on Ligand-Gated Ion Channels. ENGINEERING (BEIJING, CHINA) 2020; 6:541-545. [PMID: 38274392 PMCID: PMC10810144 DOI: 10.1016/j.eng.2019.07.027] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/27/2024]
Abstract
Essential oil has been used as sedatives, anticonvulsants, and local anesthetics in traditional medical remedies; as preservatives for food, fruit, vegetable, and grain storage; and as bio-pesticides for food production. Linalool (LL), along with a few other major components such as methyl eugenol (ME), estragole (EG), and citronellal, are the active chemicals in many essential oils such as basil oil. Basil oil and the aforementioned monoterpenoids are potent against insect pests. However, the molecular mechanism of action of these chemical constituents is not well understood. It is well-known that the γ-aminobutyric acid type A receptors (GABAARs) and nicotinic acetylcholine receptor (nAChR) are primary molecular targets of the synthetic insecticides used in the market today. Furthermore, the GABAAR-targeted therapeutics have been used in clinics for many decades, including barbiturates and benzodiazepines, to name just a few. In this research, we studied the electrophysiological effects of LL, ME, EG, and citronellal on GABAAR and nAChR to further understand their versatility as therapeutic agents in traditional remedies and as insecticides. Our results revealed that LL inhibits both GABAAR and nAChR, which may explain its insecticidal activity. LL is a concentration-dependent, non-competitive inhibitor on GABAAR, as the half-maximal effective concentration (EC50) values of γ-aminobutyric acid (GABA) for the rat α1β3γ2L GABAAR were not affected by LL: (36.2 ± 7.9) μmol·L-1 and (36.1 ± 23.8) μmol·L-1 in the absence and presence of 5 mmol·L-1 LL, respectively. The half-maximal inhibitory concentration (IC50) of LL on GABAAR was approximately 3.2 mmol·L-1. Considering that multiple monoterpenoids are found within the same essential oil, it is likely that LL has a synergistic effect with ME, which has been previously characterized as both a GABAAR agonist and a positive allosteric modulator, and with other monoterpenoids, which offers a possible explanation for the sedative and anticonvulsant effects and the insecticidal activities of LL.
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Affiliation(s)
- Amy S. Li
- College of Natural and Computational Sciences, Hawaii Pacific University, Kaneohe, HI 96744, USA
- Department of Internal Medicine, University of Colorado School of Medicine, Aurora, CO 80045, USA
| | - Akimasa Iijima
- College of Natural and Computational Sciences, Hawaii Pacific University, Kaneohe, HI 96744, USA
| | - Junhao Huang
- College of Natural and Computational Sciences, Hawaii Pacific University, Kaneohe, HI 96744, USA
| | - Qing X. Li
- Department of Molecular Biosciences and Bioengineering, University of Hawaii at Manoa, Honolulu, HI 96822, USA
| | - Yongli Chen
- College of Natural and Computational Sciences, Hawaii Pacific University, Kaneohe, HI 96744, USA
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Ellington CT, Hayden AJ, LaGrange ZB, Luccioni MD, Osman MA, Ramlan LI, Vogt MA, Guha S, Goodman MB, O'Connell LA. The plant terpenoid carvone is a chemotaxis repellent for C. elegans. MICROPUBLICATION BIOLOGY 2020; 2020:10.17912/micropub.biology.000231. [PMID: 32550506 PMCID: PMC7252383 DOI: 10.17912/micropub.biology.000231] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
| | - Andrew J. Hayden
- Organismal Biology Lab BIO161, Stanford University, Stanford, CA 94305
| | - Zack B. LaGrange
- Organismal Biology Lab BIO161, Stanford University, Stanford, CA 94305
| | | | | | | | - Miranda A. Vogt
- Organismal Biology Lab BIO161, Stanford University, Stanford, CA 94305
| | - Sujay Guha
- Department of Molecular and Cellular Physiology, Stanford University, Stanford, CA 94305,
Correspondence to: Sujay Guha (); Miriam B. Goodman (); Lauren A. O'Connell ()
| | - Miriam B. Goodman
- Department of Molecular and Cellular Physiology, Stanford University, Stanford, CA 94305,
Correspondence to: Sujay Guha (); Miriam B. Goodman (); Lauren A. O'Connell ()
| | - Lauren A. O'Connell
- Department of Biology, Stanford University, Stanford, CA 94305,
Correspondence to: Sujay Guha (); Miriam B. Goodman (); Lauren A. O'Connell ()
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Qiu F, Wang X, Zheng Y, Wang H, Liu X, Su X. Full-Length Transcriptome Sequencing and Different Chemotype Expression Profile Analysis of Genes Related to Monoterpenoid Biosynthesis in Cinnamomum porrectum. Int J Mol Sci 2019; 20:ijms20246230. [PMID: 31835605 PMCID: PMC6941020 DOI: 10.3390/ijms20246230] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Revised: 11/27/2019] [Accepted: 12/06/2019] [Indexed: 01/04/2023] Open
Abstract
Leaves of C. porrectum are rich in essential oils containing monoterpenes, sesquiterpenes and aromatic compounds, but the molecular mechanism of terpenoid biosynthesis in C. porrectum is still unclear. In this paper, the differences in the contents and compositions of terpenoids among three chemotypes were analyzed using gas chromatography mass spectrometry (GC/MS). Furthermore, the differential expression of gene transcripts in the leaf tissues of the three C. porrectum chemotypes were analyzed through a comparison of full-length transcriptomes and expression profiles. The essential oil of the three C. porrectum chemotypes leaves was mainly composed of monoterpenes. In the full-length transcriptome of C. porrectum, 104,062 transcripts with 306,337,921 total bp, an average length of 2944 bp, and an N50 length of 5449 bp, were obtained and 94025 transcripts were annotated. In the eucalyptol and linalool chemotype, the camphor and eucalyptol chemotype, and the camphor and linalool chemotype comparison groups, 21, 22 and 18 terpene synthase (TPS) unigenes were identified respectively. Three monoterpene synthase genes, CpTPS3, CpTPS5 and CpTPS9, were upregulated in the eucalyptol chemotype compared to the linalool chemotype and camphor chemotype. CpTPS1 was upregulated in the camphor chemotype compared to the linalool chemotype and the eucalyptol chemotype. CpTPS4 was upregulated in the linalool chemotype compared to the camphor chemotype and the eucalyptol chemotype. Different unigenes had different expression levels among the three chemotypes, but the unigene expression levels of the 2-C-methyl-D-erythritol 4phosphate (MEP) pathway were generally higher than those of the mevalonate acid (MVA) pathway. Quantitative reverse transcription PCR(qRT-PCR) further validated these expression levels. The present study provides new clues for the functional exploration of the terpenoid synthesis mechanism and key genes in different chemotypes of C. porrectum.
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Affiliation(s)
- Fengying Qiu
- State Key Laboratory of Tree Genetics and Breeding, Research Institute of Forestry, Chinese Academy of Forestry, Beijing 100091, China;
- Jiangxi Academy of Forestry, Camphor Engineering Technology Research Center for National Forestry and Grassland Administration, Nanchang 30032, China; (X.W.); (Y.Z.); (X.L.)
| | - Xindong Wang
- Jiangxi Academy of Forestry, Camphor Engineering Technology Research Center for National Forestry and Grassland Administration, Nanchang 30032, China; (X.W.); (Y.Z.); (X.L.)
| | - Yongjie Zheng
- Jiangxi Academy of Forestry, Camphor Engineering Technology Research Center for National Forestry and Grassland Administration, Nanchang 30032, China; (X.W.); (Y.Z.); (X.L.)
| | - Hongming Wang
- College of Bioengineering and Biotechnology, Tianshui Normal University, Tianshui 741000, China;
| | - Xinliang Liu
- Jiangxi Academy of Forestry, Camphor Engineering Technology Research Center for National Forestry and Grassland Administration, Nanchang 30032, China; (X.W.); (Y.Z.); (X.L.)
| | - Xiaohua Su
- State Key Laboratory of Tree Genetics and Breeding, Research Institute of Forestry, Chinese Academy of Forestry, Beijing 100091, China;
- Key Laboratory of Tree Breeding and Cultivation, National Forestry and Grassland Administration, Beijing 100091, China
- Correspondence: ; Tel.: +86-010-6288-9627
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Baron EP. Medicinal Properties of Cannabinoids, Terpenes, and Flavonoids in Cannabis, and Benefits in Migraine, Headache, and Pain: An Update on Current Evidence and Cannabis Science. Headache 2019; 58:1139-1186. [PMID: 30152161 DOI: 10.1111/head.13345] [Citation(s) in RCA: 126] [Impact Index Per Article: 25.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2018] [Accepted: 05/09/2018] [Indexed: 12/19/2022]
Abstract
BACKGROUND Comprehensive literature reviews of historical perspectives and evidence supporting cannabis/cannabinoids in the treatment of pain, including migraine and headache, with associated neurobiological mechanisms of pain modulation have been well described. Most of the existing literature reports on the cannabinoids Δ9 -tetrahydrocannabinol (THC) and cannabidiol (CBD), or cannabis in general. There are many cannabis strains that vary widely in the composition of cannabinoids, terpenes, flavonoids, and other compounds. These components work synergistically to produce wide variations in benefits, side effects, and strain characteristics. Knowledge of the individual medicinal properties of the cannabinoids, terpenes, and flavonoids is necessary to cross-breed strains to obtain optimal standardized synergistic compositions. This will enable targeting individual symptoms and/or diseases, including migraine, headache, and pain. OBJECTIVE Review the medical literature for the use of cannabis/cannabinoids in the treatment of migraine, headache, facial pain, and other chronic pain syndromes, and for supporting evidence of a potential role in combatting the opioid epidemic. Review the medical literature involving major and minor cannabinoids, primary and secondary terpenes, and flavonoids that underlie the synergistic entourage effects of cannabis. Summarize the individual medicinal benefits of these substances, including analgesic and anti-inflammatory properties. CONCLUSION There is accumulating evidence for various therapeutic benefits of cannabis/cannabinoids, especially in the treatment of pain, which may also apply to the treatment of migraine and headache. There is also supporting evidence that cannabis may assist in opioid detoxification and weaning, thus making it a potential weapon in battling the opioid epidemic. Cannabis science is a rapidly evolving medical sector and industry with increasingly regulated production standards. Further research is anticipated to optimize breeding of strain-specific synergistic ratios of cannabinoids, terpenes, and other phytochemicals for predictable user effects, characteristics, and improved symptom and disease-targeted therapies.
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Affiliation(s)
- Eric P Baron
- Department of Neurology, Center for Neurological Restoration - Headache and Chronic Pain Medicine, Cleveland Clinic Neurological Institute, Cleveland, OH, 44195, USA
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The Mechanism of Compound Anshen Essential Oil in the Treatment of Insomnia Was Examined by Network Pharmacology. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2019; 2019:9241403. [PMID: 31275424 PMCID: PMC6582871 DOI: 10.1155/2019/9241403] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Accepted: 05/06/2019] [Indexed: 01/17/2023]
Abstract
The active component-target network and protein-protein interaction network of Compound Anshen essential oil were constructed. The target functions and related pathways were analyzed to explore the mechanism of Compound Anshen essential oil in the treatment of insomnia. GC-MS was used to detect the chemical composition of Compound Anshen essential oil, and the TCMSP, STITCH, TTD, and DrugBank databases were searched to predict and screen the targets of Compound Anshen essential oil in the treatment of insomnia. Cytoscape software was used to construct the network diagrams of the active component-action target and protein-protein interaction networks, ClueGO software was used to analyze the GO enrichment and KEGG pathway of the target, and the systemsDock website database was used for molecular docking. The analysis of the network results showed that the activity of Compound Anshen essential oil mainly involves biological processes such as the phospholipase C-activating G protein-coupled receptor signaling pathway, response to ammonium ions, calcium ion transport into the cytosol, and chloride transport. The results of molecular docking showed that linalool, caryophyllene, dibutyl phthalate, (-)-4-terpineol, and (-)-α-terpineol have good binding activity with ADRB2, DRD2, ESR1, KCNH2, NR1H4, NR1I2, NR1I3, and TRPV1 targets. This study demonstrates the multicomponent, multitarget, and multichannel characteristics of Compound Anshen essential oil and provides a new therapeutic idea and method for further research on the mechanism of Compound Anshen essential oil in the treatment of insomnia.
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In vitro mass propagation and conservation of a rare medicinal plant, Zhumeria Majdae Rech.f & Wendelbo (Lamiaceae). BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2019. [DOI: 10.1016/j.bcab.2018.12.010] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Linalool bioactive properties and potential applicability in drug delivery systems. Colloids Surf B Biointerfaces 2018; 171:566-578. [DOI: 10.1016/j.colsurfb.2018.08.001] [Citation(s) in RCA: 93] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Revised: 07/27/2018] [Accepted: 08/02/2018] [Indexed: 01/07/2023]
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Harada H, Kashiwadani H, Kanmura Y, Kuwaki T. Linalool Odor-Induced Anxiolytic Effects in Mice. Front Behav Neurosci 2018; 12:241. [PMID: 30405369 PMCID: PMC6206409 DOI: 10.3389/fnbeh.2018.00241] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Accepted: 09/25/2018] [Indexed: 12/15/2022] Open
Abstract
In folk medicine, it has long been believed that odorous compounds derived from plant extracts can have anxiolytic effects. Among them, linalool, one of the terpene alcohols in lavender extracts, has been reported to have the anxiolytic effects. However, the anxiolytic nature of the linalool odor itself as well as its potential action through the olfactory system has not been thoroughly examined. In this study, we examined the anxiolytic effects of linalool odor with light/dark box test and with elevated plus maze (EPM), and found that linalool odor has an anxiolytic effect without motor impairment in mice. The effect was not observed in anosmic mice, indicating that it was triggered by olfactory input evoked by linalool odor. Furthermore, the effect was antagonized by flumazenil, indicating that the linalool odor-induced anxiolytic effect was mediated by γ-aminobutyric acid (GABA)ergic transmission via benzodiazepine (BDZ)-responsive GABAA receptors. These results provide information about the potential central neuronal mechanisms underlying the odor-induced anxiolytic effects and the foundation for exploring clinical application of linalool odor in anxiety treatments.
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Affiliation(s)
- Hiroki Harada
- Department of Physiology, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan.,Department of Anesthesiology, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Hideki Kashiwadani
- Department of Physiology, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Yuichi Kanmura
- Department of Anesthesiology, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Tomoyuki Kuwaki
- Department of Physiology, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
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Antinociceptive effect of inhalation of the essential oil of bergamot in mice. Fitoterapia 2018; 129:20-24. [DOI: 10.1016/j.fitote.2018.06.007] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2018] [Revised: 06/09/2018] [Accepted: 06/11/2018] [Indexed: 11/21/2022]
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Baron EP, Lucas P, Eades J, Hogue O. Patterns of medicinal cannabis use, strain analysis, and substitution effect among patients with migraine, headache, arthritis, and chronic pain in a medicinal cannabis cohort. J Headache Pain 2018; 19:37. [PMID: 29797104 PMCID: PMC5968020 DOI: 10.1186/s10194-018-0862-2] [Citation(s) in RCA: 108] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2018] [Accepted: 05/04/2018] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND Medicinal cannabis registries typically report pain as the most common reason for use. It would be clinically useful to identify patterns of cannabis treatment in migraine and headache, as compared to arthritis and chronic pain, and to analyze preferred cannabis strains, biochemical profiles, and prescription medication substitutions with cannabis. METHODS Via electronic survey in medicinal cannabis patients with headache, arthritis, and chronic pain, demographics and patterns of cannabis use including methods, frequency, quantity, preferred strains, cannabinoid and terpene profiles, and prescription substitutions were recorded. Cannabis use for migraine among headache patients was assessed via the ID Migraine™ questionnaire, a validated screen used to predict the probability of migraine. RESULTS Of 2032 patients, 21 illnesses were treated with cannabis. Pain syndromes accounted for 42.4% (n = 861) overall; chronic pain 29.4% (n = 598;), arthritis 9.3% (n = 188), and headache 3.7% (n = 75;). Across all 21 illnesses, headache was a symptom treated with cannabis in 24.9% (n = 505). These patients were given the ID Migraine™ questionnaire, with 68% (n = 343) giving 3 "Yes" responses, 20% (n = 102) giving 2 "Yes" responses (97% and 93% probability of migraine, respectively). Therefore, 88% (n = 445) of headache patients were treating probable migraine with cannabis. Hybrid strains were most preferred across all pain subtypes, with "OG Shark" the most preferred strain in the ID Migraine™ and headache groups. Many pain patients substituted prescription medications with cannabis (41.2-59.5%), most commonly opiates/opioids (40.5-72.8%). Prescription substitution in headache patients included opiates/opioids (43.4%), anti-depressant/anti-anxiety (39%), NSAIDs (21%), triptans (8.1%), anti-convulsants (7.7%), muscle relaxers (7%), ergots (0.4%). CONCLUSIONS Chronic pain was the most common reason for cannabis use, consistent with most registries. The majority of headache patients treating with cannabis were positive for migraine. Hybrid strains were preferred in ID Migraine™, headache, and most pain groups, with "OG Shark", a high THC (Δ9-tetrahydrocannabinol)/THCA (tetrahydrocannabinolic acid), low CBD (cannabidiol)/CBDA (cannabidiolic acid), strain with predominant terpenes β-caryophyllene and β-myrcene, most preferred in the headache and ID Migraine™ groups. This could reflect the potent analgesic, anti-inflammatory, and anti-emetic properties of THC, with anti-inflammatory and analgesic properties of β-caryophyllene and β-myrcene. Opiates/opioids were most commonly substituted with cannabis. Prospective studies are needed, but results may provide early insight into optimizing crossbred cannabis strains, synergistic biochemical profiles, dosing, and patterns of use in the treatment of headache, migraine, and chronic pain syndromes.
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Affiliation(s)
- Eric P. Baron
- Center for Neurological Restoration - Headache and Chronic Pain Medicine, Department of Neurology, Cleveland Clinic Neurological Institute, 10524 Euclid Avenue, C21, Cleveland, OH 44195 USA
| | - Philippe Lucas
- Tilray, 1100 Maughan Rd, Nanaimo, BC V9X 1J2 Canada
- Social Dimensions of Health, University of Victoria, 3800 Finnerty Rd, Victoria, BC V8P 5C2 Canada
- Canadian Institute for Substance Use Research, 2300 McKenzie Ave, Victoria, BC V8N 5M8 Canada
| | - Joshua Eades
- Tilray, 1100 Maughan Rd, Nanaimo, BC V9X 1J2 Canada
| | - Olivia Hogue
- Section of Biostatistics, Department of Quantitative Health Sciences, Cleveland Clinic Lerner Research Institute, 9500 Euclid Avenue, JJN3, Cleveland, OH 44195 USA
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Souto-Maior FN, da Fonsêca DV, Salgado PRR, Monte LDO, de Sousa DP, de Almeida RN. Antinociceptive and anticonvulsant effects of the monoterpene linalool oxide. PHARMACEUTICAL BIOLOGY 2017; 55:63-67. [PMID: 27622736 PMCID: PMC7012048 DOI: 10.1080/13880209.2016.1228682] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2015] [Revised: 05/26/2016] [Accepted: 08/22/2016] [Indexed: 05/30/2023]
Abstract
CONTEXT Linalool oxide (OXL) (a monoterpene) is found in the essential oils of certain aromatic plants, or it is derived from linalool. The motivation for this work is the lack of psychopharmacological studies on this substance. OBJECTIVE To evaluate OXL's acute toxicity, along with its anticonvulsant and antinociceptive activities in male Swiss mice. MATERIAL AND METHODS OXL (50, 100 and 150 mg/kg, i.p.) was investigated for acute toxicity and in the Rota-rod test. Antinociceptive activity was evaluated by the acetic acid-induced writhing test, and by formalin testing. Anticonvulsant effects were demonstrated by testing for pentylenetetrazol (PTZ)-induced seizures and by Maximum Electroshock headset (MES) test. OXL was administered to the animals intraperitoneally 30 min before for pharmacological tests. RESULTS OXL showed an LD50 of ∼721 (681-765) mg/kg. In the Rota-rod test, it was observed that OXL caused no damage to the animal's motor coordination. OXL significantly reduced (p < .001) the number of writhings. OXL also significantly decreased (p < .05, p < .01 or p < .001) paw-licking time in the two phases of the formalin test. OXL significantly reduced (p < .01 or p < .001) the duration of tonic seizures in the MES test, and at the dose 150 mg/kg, significantly increased (p < .01) the latency to first seizure in the PTZ test. CONCLUSION The tested doses of OXL were safe, with no motor impairment, and show clear antinociceptive and anticonvulsant potential. Future investigations with this monoterpene may lead to the development of a new molecule with even higher potency and selectivity.
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Affiliation(s)
- Flávia Negromonte Souto-Maior
- Postgraduate Program in Natural Products and Bioactive Synthetics (PgPNSB), Federal University of Paraíba (UFPB), João Pessoa, Paraíba, Brazil
| | - Diogo Vilar da Fonsêca
- Postgraduate Program in Natural Products and Bioactive Synthetics (PgPNSB), Federal University of Paraíba (UFPB), João Pessoa, Paraíba, Brazil
| | - Paula Regina Rodrigues Salgado
- Postgraduate Program in Natural Products and Bioactive Synthetics (PgPNSB), Federal University of Paraíba (UFPB), João Pessoa, Paraíba, Brazil
| | - Lucas de Oliveira Monte
- Postgraduate Program in Natural Products and Bioactive Synthetics (PgPNSB), Federal University of Paraíba (UFPB), João Pessoa, Paraíba, Brazil
| | - Damião Pergentino de Sousa
- Postgraduate Program in Natural Products and Bioactive Synthetics (PgPNSB), Federal University of Paraíba (UFPB), João Pessoa, Paraíba, Brazil
| | - Reinaldo Nóbrega de Almeida
- Postgraduate Program in Natural Products and Bioactive Synthetics (PgPNSB), Federal University of Paraíba (UFPB), João Pessoa, Paraíba, Brazil
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Prachayasittikul V, Prachayasittikul S, Ruchirawat S, Prachayasittikul V. Coriander (Coriandrum sativum): A promising functional food toward the well-being. Food Res Int 2017; 105:305-323. [PMID: 29433220 DOI: 10.1016/j.foodres.2017.11.019] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2017] [Revised: 11/06/2017] [Accepted: 11/19/2017] [Indexed: 01/03/2023]
Abstract
Coriandrum sativum (C. sativum) or coriander is one of the most popularly used spices in culinary worldwide, and its medicinal values has been recognized since ancient time. C. sativum contains bioactive phytochemicals that are accounted for a wide range of biological activities including antioxidant, anticancer, neuroprotective, anxiolytic, anticonvulsant, analgesic, migraine-relieving, hypolipidemic, hypoglycemic, hypotensive, antimicrobial, and antiinflammatory activities. The major compound, linalool, abundantly found in seeds is remarked for its abilities to modulate many key pathogenesis pathways of diseases. Apart from the modulating effects, the potent antioxidant property of the C. sativum provides a key mechanism behind its protective effects against neurodegenerative diseases, cancer, and metabolic syndrome. This review shed light on comprehensive aspects regarding the therapeutic values of the C. sativum, which indicate its significance of being a promising functional food for promoting the well-being in the era of aging and lifestyle-related diseases.
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Affiliation(s)
- Veda Prachayasittikul
- Center of Data Mining and Biomedical Informatics, Faculty of Medical Technology, Mahidol University, Bangkok 10700, Thailand.
| | - Supaluk Prachayasittikul
- Center of Data Mining and Biomedical Informatics, Faculty of Medical Technology, Mahidol University, Bangkok 10700, Thailand
| | - Somsak Ruchirawat
- Laboratory of Medicinal Chemistry, Chulabhorn Research Institute, Bangkok 10210, Thailand; Program in Chemical Biology, Chulabhorn Graduate Institute, Bangkok 10210, Thailand; Center of Excellence on Environmental Health and Toxicology, Commission on Higher Education (CHE), Ministry of Education, Thailand
| | - Virapong Prachayasittikul
- Department of Clinical Microbiology and Applied Technology, Faculty of Medical Technology, Mahidol University, Bangkok 10700, Thailand
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Punetha D, Tewari G, Pande C. Compositional variability in inflorescence essential oil of Coriandrum sativum from North India. JOURNAL OF ESSENTIAL OIL RESEARCH 2017. [DOI: 10.1080/10412905.2017.1399169] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Deepshekha Punetha
- Department of Chemistry, Kumaun University (D. S. B. Campus), Nainital, India
| | - Geeta Tewari
- Department of Chemistry, Kumaun University (D. S. B. Campus), Nainital, India
| | - Chitra Pande
- Department of Chemistry, Kumaun University (D. S. B. Campus), Nainital, India
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Singh H, Bhushan S, Arora R, Singh Buttar H, Arora S, Singh B. Alternative treatment strategies for neuropathic pain: Role of Indian medicinal plants and compounds of plant origin-A review. Biomed Pharmacother 2017; 92:634-650. [DOI: 10.1016/j.biopha.2017.05.079] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2017] [Revised: 05/16/2017] [Accepted: 05/17/2017] [Indexed: 01/28/2023] Open
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Schabauer L, Steflitsch W, Buchbauer G. Essential Oils and Compounds against Pains in Animal Studies. Nat Prod Commun 2017. [DOI: 10.1177/1934578x1701200734] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
The positive impact of essential oils and compounds has been known for a long time. Essential oils are multicomponent mixtures and obtained by steam distillation of leaves or flowers or simply by pressing orange peels for example. Due to the broad-spectrum activity, essential oils can be used for a variety of disorders like sleeping problems, colds or gastrointestinal complaints. The focus of this paper is the use of essential oils against pain in animal studies. The broad use of analgesics like NSAIDs against headaches or menstrual cramps for example, is often associated with unpleasant side effects. Essential oils may help to reduce the analgesic doses.
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Affiliation(s)
- Lisa Schabauer
- Department of Pharmaceutical Chemistry, University of Vienna, A-1090 Vienna, Austria
| | - Wolfgang Steflitsch
- Second Department of Pneumological Medicine, Otto Wagner Hospital, A-1140 Vienna, Austria
| | - Gerhard Buchbauer
- Department of Pharmaceutical Chemistry, University of Vienna, A-1090 Vienna, Austria
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Araújo-Filho HG, Pereira EWM, Rezende MM, Menezes PP, Araújo AAS, Barreto RSS, Martins AOBPB, Albuquerque TR, Silva BAF, Alcantara IS, Coutinho HDM, Menezes IRA, Quintans-Júnior LJ, Quintans JSS. D-limonene exhibits superior antihyperalgesic effects in a β-cyclodextrin-complexed form in chronic musculoskeletal pain reducing Fos protein expression on spinal cord in mice. Neuroscience 2017; 358:158-169. [PMID: 28673718 DOI: 10.1016/j.neuroscience.2017.06.037] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2017] [Revised: 06/12/2017] [Accepted: 06/21/2017] [Indexed: 10/19/2022]
Abstract
Chronic musculoskeletal pain is one of the main symptoms found in Fibromyalgia with unclear etiology and limited pharmacological treatment. The aim of this study was to complex LIM in β-cyclodextrin (LIM-βCD) and then evaluate its antihyperalgesic effect in an animal model of chronic musculoskeletal pain. Differential scanning calorimetry and scanning electron microscopy was used for the characterization of the inclusion complex. Male Swiss mice were used for experimental procedures where mechanical hyperalgesia, thermal hyperalgesia, muscular strength, Fos immunofluorescence was studied after induction of hyperalgesia. Mechanism of action was also investigated through tail flick test and capsaicin-induced nociception. Endothermic events and morphological changes showed that the slurry complex method was the best method for the complexation. After induction of hyperalgesia, the oral administration of LIM-βCD (50mg/kg) significantly increased the paw withdrawal threshold compared to uncomplexed limonene. Fos immunofluorescence showed that both compounds significantly decreased the number of Fos-positive cells in the dorsal horn. In nociceptive tests, FLU was able to reverse the antinociceptive effect of LIM-βCD. After intraplantar administration of capsaicin, LIM was able to significantly decrease time to lick. LIM-βCD has antihyperalgesic action superior to its uncomplexed form, with possible action in the dorsal horn of the spinal cord. These results suggest the possible applicability of LIM, uncomplexed or complexed with βCD, in conditions such as FM and neuropathic pain, for which there are currently only limited pharmacological options.
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Affiliation(s)
- Heitor G Araújo-Filho
- Laboratory of Neuroscience and Pharmacological Assays (LANEF). Department of Physiology, Federal University of Sergipe, São Cristóvão, SE, Brazil
| | - Erik W M Pereira
- Laboratory of Neuroscience and Pharmacological Assays (LANEF). Department of Physiology, Federal University of Sergipe, São Cristóvão, SE, Brazil
| | - Marília M Rezende
- Laboratory of Neuroscience and Pharmacological Assays (LANEF). Department of Physiology, Federal University of Sergipe, São Cristóvão, SE, Brazil
| | - Paula P Menezes
- Department of Pharmacy, Federal University of Sergipe, São Cristóvão, SE, Brazil
| | - Adriano A S Araújo
- Department of Pharmacy, Federal University of Sergipe, São Cristóvão, SE, Brazil
| | - Rosana S S Barreto
- Department of Health Education, Federal University of Sergipe, Largato, SE, Brazil
| | | | - Thaís R Albuquerque
- Department of Biological Chemistry, Regional University of Crato, Crato, CE, Brazil
| | - Bruno A F Silva
- Department of Biological Chemistry, Regional University of Crato, Crato, CE, Brazil
| | - Isabel S Alcantara
- Department of Biological Chemistry, Regional University of Crato, Crato, CE, Brazil
| | | | - Irwin R A Menezes
- Department of Biological Chemistry, Regional University of Crato, Crato, CE, Brazil
| | - Lucindo J Quintans-Júnior
- Laboratory of Neuroscience and Pharmacological Assays (LANEF). Department of Physiology, Federal University of Sergipe, São Cristóvão, SE, Brazil
| | - Jullyana S S Quintans
- Laboratory of Neuroscience and Pharmacological Assays (LANEF). Department of Physiology, Federal University of Sergipe, São Cristóvão, SE, Brazil.
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Russo EB, Marcu J. Cannabis Pharmacology: The Usual Suspects and a Few Promising Leads. ADVANCES IN PHARMACOLOGY 2017; 80:67-134. [PMID: 28826544 DOI: 10.1016/bs.apha.2017.03.004] [Citation(s) in RCA: 176] [Impact Index Per Article: 25.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The golden age of cannabis pharmacology began in the 1960s as Raphael Mechoulam and his colleagues in Israel isolated and synthesized cannabidiol, tetrahydrocannabinol, and other phytocannabinoids. Initially, THC garnered most research interest with sporadic attention to cannabidiol, which has only rekindled in the last 15 years through a demonstration of its remarkably versatile pharmacology and synergy with THC. Gradually a cognizance of the potential of other phytocannabinoids has developed. Contemporaneous assessment of cannabis pharmacology must be even far more inclusive. Medical and recreational consumers alike have long believed in unique attributes of certain cannabis chemovars despite their similarity in cannabinoid profiles. This has focused additional research on the pharmacological contributions of mono- and sesquiterpenoids to the effects of cannabis flower preparations. Investigation reveals these aromatic compounds to contribute modulatory and therapeutic roles in the cannabis entourage far beyond expectations considering their modest concentrations in the plant. Synergistic relationships of the terpenoids to cannabinoids will be highlighted and include many complementary roles to boost therapeutic efficacy in treatment of pain, psychiatric disorders, cancer, and numerous other areas. Additional parts of the cannabis plant provide a wide and distinct variety of other compounds of pharmacological interest, including the triterpenoid friedelin from the roots, canniprene from the fan leaves, cannabisin from seed coats, and cannflavin A from seed sprouts. This chapter will explore the unique attributes of these agents and demonstrate how cannabis may yet fulfil its potential as Mechoulam's professed "pharmacological treasure trove."
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Affiliation(s)
| | - Jahan Marcu
- Americans for Safe Access, Patient Focused Certification, Washington, DC, United States
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Siqueira-Lima PS, Brito RG, Araújo-Filho HG, Santos PL, Lucchesi A, Araújo AAS, Menezes PP, Scotti L, Scotti MT, Menezes IRA, Coutinho HDM, Zengin G, Aktumsek A, Antoniolli AR, Quintans-Júnior LJ, Quintans JSS. Anti-hyperalgesic effect of Lippia grata leaf essential oil complexed with β-cyclodextrin in a chronic musculoskeletal pain animal model: Complemented with a molecular docking and antioxidant screening. Biomed Pharmacother 2017; 91:739-747. [PMID: 28499245 DOI: 10.1016/j.biopha.2017.05.009] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2017] [Revised: 04/29/2017] [Accepted: 05/02/2017] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND Due to its unclear pathophysiology, the pharmacological treatment of fibromyalgia is a challenge for researchers. Studies using medicinal plants, such as those from the genus Lippia, complexed with cyclodextrins (CDs) have shown innovative results. OBJECTIVE The present research intended to evaluate the effect of an inclusion complex containing β-cyclodextrin (βCD) inclusion complex with Lippia grata (LG) essential oil in a chronic musculoskeletal pain model, its central activity and its possible interaction with neurotransmitters involved in pain. METHODS After acid saline-induced chronic muscle pain, male mice were evaluated for primary and secondary hyperalgesia and muscle strength. Moreover, an antagonist assay was performed to assess the possible involvement of the opioidergic, serotonergic and noradrenergic pathways. In addition, Fos protein in the spinal cord was assessed, and a docking study and antioxidant assays were performed. RESULTS The treatment with LG-βCD, especially in the dose of 24mg/kg, was able to significantly decrease (p<0.05) the paw withdrawal and muscle threshold. Furthermore, LG-βCD was shown to affect the opioidergic and serotonergic pathways. There were no significant changes in muscle strength. Fos protein immunofluorescence showed a significant decrease in expression in the dorsal horn of the spinal cord. The main compounds of LG showed through the docking study interaction energies with the alpha-adrenergic and μOpioid receptors. In all antioxidant assays, LG exhibited stronger antioxidant activities than LG-βCD. CONCLUSION This study suggested that LG-βCD could be considered as a valuable source for designing new drugs in the treatment of chronic pain, especially musculoskeletal pain.
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Affiliation(s)
- Pollyana S Siqueira-Lima
- Laboratory of Neuroscience and Pharmacological Assays (LANEF), Department of Physiology, Federal University of Sergipe, São Cristóvão, SE, Brazil; Graduate Program of Biotechnology (PPGBiotec), The State University of Feira de Santana, Feira de Santana, BA, Brazil
| | - Renan G Brito
- Laboratory of Neuroscience and Pharmacological Assays (LANEF), Department of Physiology, Federal University of Sergipe, São Cristóvão, SE, Brazil
| | - Heitor G Araújo-Filho
- Laboratory of Neuroscience and Pharmacological Assays (LANEF), Department of Physiology, Federal University of Sergipe, São Cristóvão, SE, Brazil
| | - Priscila L Santos
- Laboratory of Neuroscience and Pharmacological Assays (LANEF), Department of Physiology, Federal University of Sergipe, São Cristóvão, SE, Brazil
| | - Angélica Lucchesi
- Graduate Program of Biotechnology (PPGBiotec), The State University of Feira de Santana, Feira de Santana, BA, Brazil
| | - Adriano A S Araújo
- Department of Pharmacy (DFA), Federal University of Sergipe, São Cristóvão, SE, Brazil
| | - Paula P Menezes
- Department of Pharmacy (DFA), Federal University of Sergipe, São Cristóvão, SE, Brazil
| | - Luciana Scotti
- Graduate Program of Natural Product and Bioactive Synthetics, Federal University of Paraíba, João Pessoa, PB, Brazil
| | - Marcus T Scotti
- Graduate Program of Natural Product and Bioactive Synthetics, Federal University of Paraíba, João Pessoa, PB, Brazil
| | - Irwin R A Menezes
- Department of Biological Chemistry, Regional University of Cariri, Crato, Ceará, Brazil
| | - Henrique D M Coutinho
- Department of Biological Chemistry, Regional University of Cariri, Crato, Ceará, Brazil
| | - Gokhan Zengin
- Department of Biology, Science Faculty, Selcuk University, Campus, 42250, Konya, Turkey
| | - Abdurrahman Aktumsek
- Department of Biology, Science Faculty, Selcuk University, Campus, 42250, Konya, Turkey
| | - Angelo R Antoniolli
- Laboratory of Neuroscience and Pharmacological Assays (LANEF), Department of Physiology, Federal University of Sergipe, São Cristóvão, SE, Brazil
| | - Lucindo J Quintans-Júnior
- Laboratory of Neuroscience and Pharmacological Assays (LANEF), Department of Physiology, Federal University of Sergipe, São Cristóvão, SE, Brazil.
| | - Jullyana S S Quintans
- Laboratory of Neuroscience and Pharmacological Assays (LANEF), Department of Physiology, Federal University of Sergipe, São Cristóvão, SE, Brazil.
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Chemical composition of stinging nettle leaves obtained by different analytical approaches. J Funct Foods 2017. [DOI: 10.1016/j.jff.2017.02.019] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
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Quintans-Júnior LJ, Brito RG, Quintans JSS, Santos PL, Camargo ZT, Barreto PA, Arrigoni-Blank MF, Lucca-Júnior W, Scotti L, Scotti MT, Kolker SJ, Sluka KA. Nanoemulsion Thermoreversible Pluronic F127-Based Hydrogel Containing Hyptis pectinata (Lamiaceae) Leaf Essential Oil Produced a Lasting Anti-hyperalgesic Effect in Chronic Noninflammatory Widespread Pain in Mice. Mol Neurobiol 2017; 55:1665-1675. [PMID: 28194646 DOI: 10.1007/s12035-017-0438-1] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2016] [Accepted: 02/03/2017] [Indexed: 01/12/2023]
Abstract
We evaluated if a nanostructured thermoreversible Pluronic F127-based hydrogel incorporated with Hyptis pectinata leaf essential oil (NE-EOH) produces a long-lasting anti-hyperalgesic effect on chronic muscle pain in an animal model. We induced chronic muscle pain by injecting the gastrocnemius with saline injections. Paw and muscle withdrawal thresholds and motor performance were evaluated after treatment and compared with morphine, diazepam, or vehicle. Naloxone and methysergide administration tested the involvement of opioid and serotonin receptors, respectively. Sites of action in the central nervous system for the NE-EOH were examined by measuring substance P (SP) levels in the spinal cord and Fos protein in the brainstem. NE-EOH increased paw and muscle withdrawal thresholds when compared with vehicle but had no effect on motor function. This analgesic effect was reversed by both naloxone and methysergide. NE-EOH decreased elevated substance P levels and reduced Fos-labeled neurons in the spinal cord and increased the number of Fos-labeled neurons in the periaqueductal gray (PAG), nucleus raphe magnus (NRM), and locus coeruleus (LC). NE-EOH was shown to produce a lasting anti-hyperalgesic effect. It uses opioid and serotonin receptors, activates brainstem inhibitory pathways, and reduces the release of excitatory neurotransmitters in the spinal cord and is a substance with potential to be used in the treatment of noninflammatory pain conditions. Graphical Abstract.
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Affiliation(s)
- Lucindo J Quintans-Júnior
- Department of Physiology (DFS), Laboratory of Neuroscience and Pharmacological Assays (LANEF), Federal University of Sergipe (UFS), Av. Marechal Rondom, s/n, São Cristóvão, SE, Brazil.
- Department of Physical Therapy and Rehabilitation Science, Carver College of Medicine, University of Iowa (UI), Iowa City, IA, USA.
| | - Renan G Brito
- Department of Physiology (DFS), Laboratory of Neuroscience and Pharmacological Assays (LANEF), Federal University of Sergipe (UFS), Av. Marechal Rondom, s/n, São Cristóvão, SE, Brazil
- Department of Physical Therapy and Rehabilitation Science, Carver College of Medicine, University of Iowa (UI), Iowa City, IA, USA
| | - Jullyana S S Quintans
- Department of Physiology (DFS), Laboratory of Neuroscience and Pharmacological Assays (LANEF), Federal University of Sergipe (UFS), Av. Marechal Rondom, s/n, São Cristóvão, SE, Brazil
| | - Priscila L Santos
- Department of Physiology (DFS), Laboratory of Neuroscience and Pharmacological Assays (LANEF), Federal University of Sergipe (UFS), Av. Marechal Rondom, s/n, São Cristóvão, SE, Brazil
| | - Zaine T Camargo
- Department of Chemistry, Federal University of Sergipe (UFS), São Cristóvão, SE, Brazil
| | - Péricles A Barreto
- Department of Chemistry, Federal University of Sergipe (UFS), São Cristóvão, SE, Brazil
| | | | - Waldecy Lucca-Júnior
- Department of Morphology, Federal University of Sergipe (UFS), São Cristóvão, SE, Brazil
| | - Luciana Scotti
- Department of Chemistry, Federal University of Paraíba (UFPB), João Pessoa, PB, Brazil
| | - Marcus T Scotti
- Department of Chemistry, Federal University of Paraíba (UFPB), João Pessoa, PB, Brazil
| | - Sandra J Kolker
- Department of Physical Therapy and Rehabilitation Science, Carver College of Medicine, University of Iowa (UI), Iowa City, IA, USA
| | - Kathleen A Sluka
- Department of Physical Therapy and Rehabilitation Science, Carver College of Medicine, University of Iowa (UI), Iowa City, IA, USA
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Shoaib M, Shah I, Ali N, Adhikari A, Tahir MN, Shah SWA, Ishtiaq S, Khan J, Khan S, Umer MN. Sesquiterpene lactone! a promising antioxidant, anticancer and moderate antinociceptive agent from Artemisia macrocephala jacquem. BMC COMPLEMENTARY AND ALTERNATIVE MEDICINE 2017; 17:27. [PMID: 28061778 PMCID: PMC5219761 DOI: 10.1186/s12906-016-1517-y] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/29/2016] [Accepted: 12/14/2016] [Indexed: 01/13/2023]
Abstract
Background Sesquiterpene lactones (STLs) make a diverse and huge group of bio-active constituents that have been isolated from several plant families. However, the greatest numbers are present in Asteraceae family having more than 3000 different reported structures. Recently several researchers have reported that STLs have significant antioxidant and anticancer potentials. Methods To investigate the antioxidant, anticancer and antinociceptive potentials of STLs, gravity column chromatography technique was used for isolation from the biologically rich chloroform fraction of Artemisia macrocephala Jacquem. The antioxidant activity of the isolated STLs was determined by DPPH and ABTS free radical scavenging activity, anticancer activity was determined on 3 T3, HeLa and MCF-7 cells by MTT assay while the antinociceptive activity was determined through acetic acid induced writhings, tail immersion method and formalin induced nociception method. Results The results showed that the STLs of Artemisia macrocephala possesses promising antioxidant activity and also it decreased the viability of 3 T3, HeLa and MCF-7 cells and mild to moderate antinociceptive activity. Conclusion Sesquiterpenes lactones (STLs) are widely present in numerous genera of the family Asteraceae (compositae). They are described as the active constituents used in traditional medicine for the treatment of various diseases. The present study reveals the significant potentials of STL and may be used as an alternative for the management of cancer. Anyhow, the isolated compound is having no prominent antinociceptive potentials. Electronic supplementary material The online version of this article (doi:10.1186/s12906-016-1517-y) contains supplementary material, which is available to authorized users.
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Siqueira-Lima PS, Silva JC, Quintans JS, Antoniolli AR, Shanmugam S, Barreto RS, Santos MR, Almeida JR, Bonjardim LR, Menezes IR, Quintans-Júnior LJ. Natural products assessed in animal models for orofacial pain – a systematic review. REVISTA BRASILEIRA DE FARMACOGNOSIA-BRAZILIAN JOURNAL OF PHARMACOGNOSY 2017. [DOI: 10.1016/j.bjp.2016.06.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Chirumbolo S, Bjørklund G. The Antinociceptive Activity of Geraniol. Basic Clin Pharmacol Toxicol 2016; 120:105-107. [PMID: 28000392 DOI: 10.1111/bcpt.12683] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Salvatore Chirumbolo
- Department of Neurological and Movement Sciences, University of Verona, Verona, Italy
| | - Geir Bjørklund
- Council for Nutritional and Environmental Medicine (CONEM), Mo i Rana, Norway
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Odour-induced analgesia mediated by hypothalamic orexin neurons in mice. Sci Rep 2016; 6:37129. [PMID: 27845440 PMCID: PMC5109046 DOI: 10.1038/srep37129] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2016] [Accepted: 10/25/2016] [Indexed: 12/27/2022] Open
Abstract
Various folk remedies employ certain odorous compounds with analgesic effects. In fact, linalool, a monoterpene alcohol found in lavender extracts, has been found to attenuate pain responses via subcutaneous, intraperitoneal, intrathecal, and oral administration. However, the analgesic effects of odorous compounds mediated by olfaction have not been thoroughly examined. We performed behavioural pain tests under odourant vapour exposure in mice. Among six odourant molecules examined, linalool significantly increased the pain threshold and attenuated pain behaviours. Olfactory bulb or epithelium lesion removed these effects, indicating that olfactory sensory input triggered the effects. Furthermore, immunohistochemical analysis revealed that linalool activated hypothalamic orexin neurons, one of the key mediators for pain processing. Formalin tests in orexin neuron-ablated and orexin peptide-deficient mice showed orexinergic transmission was essential for linalool odour-induced analgesia. Together, these findings reveal central analgesic circuits triggered by olfactory input in the mammalian brain and support a potential therapeutic approach for treating pain with linalool odour stimulation.
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Shi F, Zhao Y, Firempong CK, Xu X. Preparation, characterization and pharmacokinetic studies of linalool-loaded nanostructured lipid carriers. PHARMACEUTICAL BIOLOGY 2016; 54:2320-2328. [PMID: 26986932 DOI: 10.3109/13880209.2016.1155630] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Context Linalool (LL) is associated with numerous pharmacological activities. However, its poor solubility usually results in poor bioavailability, and further limited its applications. Objective To reduce volatilization and improve bioavailability of LL, linalool-loaded nanostructured lipid carriers (LL-NLCs) were prepared. Materials and methods LL-NLCs were prepared using high-pressure homogenization method and optimized via response surface methodology-central composite design, followed by characterization, including particle size (PS), zeta potential (ZP), transmission electron microscope (TEM), X-ray diffraction (XRD), differential scanning calorimetry (DSC) and in vitro release study. Rats were administered 300 mg × kg (-) (1) LL with each preparation (LL-NLCs or LL) via oral gavage. Results LL-NLCs had a PS of 52.72 nm with polydispersity index of 0.172, and ZP of -16.0 mV. The encapsulation efficiency and drug loading gave 79.563 and 7.555%, respectively. The cumulative release of LL from free LL reached 51.414% at 180 min, while LL from LL-NLCs was 15.564%. All the pharmacokinetics parameters of LL-NLCs were better than those of LL, including Cmax (from 1915.45 to 2182.45 ng × mL (-) (1)), AUC0-t (from 76003.40 to 298948.46 ng × min × mL (-) (1)) and relative bioavailability (393.34%). The t1/2, MRT and tmax of LL-NLCs (110.50, 146.66 and 60 min) were also longer than that of LL (44.72, 45.66 and 40 min). Discussion and conclusion LL-NLCs were for the first time prepared and its oral administration in rats thoroughly investigated. LL-NLCs exhibited sustained release effect and increased absorption of LL. Therefore, these findings might provide a potential possibility for clinical application of LL.
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Affiliation(s)
- Feng Shi
- a Department of Pharmaceutics , School of Pharmacy Center for Nano Drug/Gene Delivery and Tissue Engineering, Jiangsu University , Zhenjiang , PR China
| | - Yingying Zhao
- a Department of Pharmaceutics , School of Pharmacy Center for Nano Drug/Gene Delivery and Tissue Engineering, Jiangsu University , Zhenjiang , PR China
| | - Caleb Kesse Firempong
- a Department of Pharmaceutics , School of Pharmacy Center for Nano Drug/Gene Delivery and Tissue Engineering, Jiangsu University , Zhenjiang , PR China
| | - Ximing Xu
- a Department of Pharmaceutics , School of Pharmacy Center for Nano Drug/Gene Delivery and Tissue Engineering, Jiangsu University , Zhenjiang , PR China
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Essential Oil of Ocimum basilicum L. and (-)-Linalool Blocks the Excitability of Rat Sciatic Nerve. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2016; 2016:9012605. [PMID: 27446227 PMCID: PMC4944029 DOI: 10.1155/2016/9012605] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/12/2016] [Accepted: 05/31/2016] [Indexed: 01/18/2023]
Abstract
The racemate linalool and its levogyrus enantiomer [(−)-LIN] are present in many essential oils and possess several pharmacological activities, such as antinociceptive and anti-inflammatory. In this work, the effects of essential oil obtained from the cultivation of the Ocimum basilicum L. (EOOb) derived from Germplasm Bank rich in (−)-LIN content in the excitability of peripheral nervous system were studied. We used rat sciatic nerve to investigate the EOOb and (−)-LIN effects on neuron excitability and the extracellular recording technique was used to register the compound action potential (CAP). EOOb and (−)-LIN blocked the CAP in a concentration-dependent way and these effects were reversible after washout. EOOb blocked positive amplitude of 1st and 2nd CAP components with IC50 of 0.38 ± 0.2 and 0.17 ± 0.0 mg/mL, respectively. For (−)-LIN, these values were 0.23 ± 0.0 and 0.13 ± 0.0 mg/mL. Both components reduced the conduction velocity of CAP and the 2nd component seems to be more affected than the 1st component. In conclusion EOOb and (−)-LIN inhibited the excitability of peripheral nervous system in a similar way and potency, revealing that the effects of EOOb on excitability are due to the presence of (−)-LIN in the essential oil.
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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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Brito RG, Araújo AAS, Quintans JSS, Sluka KA, Quintans-Júnior LJ. Enhanced analgesic activity by cyclodextrins - a systematic review and meta-analysis. Expert Opin Drug Deliv 2015; 12:1677-88. [PMID: 26159048 DOI: 10.1517/17425247.2015.1046835] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
INTRODUCTION Analgesics can be ineffective in treating some types of pain, hence, improved drug delivery systems could optimize their efficacy. AREA COVERED The authors conducted a systematic review to evaluate the analgesic activity of compounds complexed in cyclodextrins, analyzing whether these complexes improved analgesic efficacy. The search terms 'analgesics', 'cyclodextrins' and 'drug effects' were used to retrieve articles in SCOPUS, PUBMED and EMBASE. A total of 22 papers were identified. In the clinical studies, there was greater efficacy in the complexed drug when compared with control groups, with differences ranging from 25 to 83%. Through a meta-analysis, the preclinical studies showed that the complexed drug had a significantly (p < 0.01) greater effect than the non-complexed drug. EXPERT OPINION The use of cyclodextrins can improve the efficacy of analgesic compounds, and they are an important tool in the search for greater analgesic effect. They may also be a way to reduce the therapeutic doses, and hence increasing the potential of the drug.
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Affiliation(s)
- Renan G Brito
- a 1 Federal University of Sergipe, Department of Physiology , São Cristóvão, Sergipe, Brazil +55 79 2105 6640 ; ; .,b 2 University of Iowa, Carver College of Medicine, Physical Therapy and Rehabilitation Science , Iowa City, IA, USA
| | - Adriano A S Araújo
- c 3 Federal University of Sergipe, Department of Pharmacy , São Cristóvão, Sergipe, Brazil
| | - Jullyana S S Quintans
- a 1 Federal University of Sergipe, Department of Physiology , São Cristóvão, Sergipe, Brazil +55 79 2105 6640 ; ;
| | - Kathleen A Sluka
- b 2 University of Iowa, Carver College of Medicine, Physical Therapy and Rehabilitation Science , Iowa City, IA, USA
| | - Lucindo J Quintans-Júnior
- a 1 Federal University of Sergipe, Department of Physiology , São Cristóvão, Sergipe, Brazil +55 79 2105 6640 ; ; .,b 2 University of Iowa, Carver College of Medicine, Physical Therapy and Rehabilitation Science , Iowa City, IA, USA
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Involvement of Cholinergic and Opioid System in γ-Terpinene-Mediated Antinociception. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2015; 2015:829414. [PMID: 26170885 PMCID: PMC4480809 DOI: 10.1155/2015/829414] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/17/2014] [Revised: 01/26/2015] [Accepted: 01/26/2015] [Indexed: 01/28/2023]
Abstract
The literature shows that the monoterpenes are great candidates for the development of new drugs for the treatment of various pathological processes, including painful conditions. The gamma terpinene (γ-TPN) is a monoterpene present in plant species that have multiple pharmacological properties and has structural similarity to antinociceptive monoterpenes, such as limonene and alpha-phellandrene. The γ-TPN molecular mass was evaluated by mass spectrometry and showed a pseudomolecular ion with m/z 137.0 Da. The animals did not present any signs of acute toxicity at 2 g/kg, p.o. γ-TPN (1.562 to 50 mg/kg, p.o.) showed an antinociceptive effect in the formalin, capsaicin, and glutamate tests. γ-TPN has antinociceptive action when administered by others routes in glutamate test. To eliminate a possible sedative effect of γ-TPN, the open field and rota-rod test were conducted and the γ-TPN did not show muscle relaxant activity or central depressant effect. To investigate the mechanisms of action, the animals were pretreated with naloxone, glibenclamide, atropine, mecamylamine, or L-arginine in the glutamate test. γ-TPN antinociception was inhibited in the presence of naloxone, glibenclamide, atropine, and mecamylamine. The results suggest that the γ-TPN (p.o.) produced antinociceptive effect in models of chemical nociception through the cholinergic and opioid systems involvement.
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