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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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2
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Qing L, Zhu Y, Yu C, Zhang Y, Ni J. Exploring the association between dietary Inflammatory Index and chronic pain in US adults using NHANES 1999-2004. Sci Rep 2024; 14:8726. [PMID: 38622145 PMCID: PMC11018766 DOI: 10.1038/s41598-024-58030-w] [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: 01/09/2024] [Accepted: 03/25/2024] [Indexed: 04/17/2024] Open
Abstract
Chronic pain, a substantial public health issue, may be influenced by dietary patterns through systemic inflammation. This cross-sectional study explored the association between Dietary Inflammatory Index (DII) and chronic pain among 2581 American adults from NHANES data. The DII, ranging from - 4.98 to 4.69, reflects the inflammatory potential of the diet, with higher scores indicating greater pro-inflammatory capacity. Our findings showed no significant association between the continuous DII score and chronic pain prevalence. However, a nonlinear relationship emerged. When the DII was categorized, a significant association between higher DII scores (DII ≥ 2.5) and chronic pain prevalence was observed. The analysis uncovered a U-shaped pattern, with an inflection point at a DII score of - 0.9, indicating an association between both low and high levels of dietary inflammation are associated with higher pain prevalence. This nuanced interaction between dietary inflammation and chronic pain indicates the possibility of incorporating dietary modification into pain management strategies and underscores the need for further research into the long-term effects of diet on chronic pain.
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Affiliation(s)
- Lunxue Qing
- The First Clinical Medical College, Beijing University of Chinese Medicine, Beijing, China
| | - Yingying Zhu
- The First Clinical Medical College, Beijing University of Chinese Medicine, Beijing, China
| | - Changhe Yu
- Dongzhimen Hospital, Beijing University of Chinese Medicine, 5 Haiyuncang, Dongcheng District, Beijing, 100700, China
| | - Yang Zhang
- Dongzhimen Hospital, Beijing University of Chinese Medicine, 5 Haiyuncang, Dongcheng District, Beijing, 100700, China.
| | - Jinxia Ni
- Dongzhimen Hospital, Beijing University of Chinese Medicine, 5 Haiyuncang, Dongcheng District, Beijing, 100700, China.
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3
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Hu Y, Liu J, Zhuang R, Zhang C, Lin F, Wang J, Peng S, Zhang W. Progress in Pathological and Therapeutic Research of HIV-Related Neuropathic Pain. Cell Mol Neurobiol 2023; 43:3343-3373. [PMID: 37470889 DOI: 10.1007/s10571-023-01389-7] [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: 02/23/2023] [Accepted: 07/10/2023] [Indexed: 07/21/2023]
Abstract
HIV-related neuropathic pain (HRNP) is a neurodegeneration that gradually develops during the long-term course of acquired immune deficiency syndrome (AIDS) and manifests as abnormal sock/sleeve-like symmetrical pain and nociceptive hyperalgesia in the extremities, which seriously reduces patient quality of life. To date, the pathogenesis of HRNP is not completely clear. There is a lack of effective clinical treatment for HRNP and it is becoming a challenge and hot spot for medical research. In this study, we conducted a systematic review of the progress of HRNP research in recent years including (1) the etiology, classification and clinical symptoms of HRNP, (2) the establishment of HRNP pathological models, (3) the pathological mechanisms underlying HRNP from three aspects: molecules, signaling pathways and cells, (4) the therapeutic strategies for HRNP, and (5) the limitations of recent HRNP research and the future research directions and prospects of HRNP. This detailed review provides new and systematic insight into the pathological mechanism of HRNP, which establishes a theoretical basis for the future exploitation of novel target drugs. HIV infection, antiretroviral therapy and opioid abuse contribute to the etiology of HRNP with symmetrical pain in both hands and feet, allodynia and hyperalgesia. The pathogenesis involves changes in cytokine expression, activation of signaling pathways and neuronal cell states. The therapy for HRNP should be patient-centered, integrating pharmacologic and nonpharmacologic treatments into multimodal intervention.
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Affiliation(s)
- YanLing Hu
- Zhejiang Provincial Key Laboratory of Silkworm Bioreactor and Biomedicine, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou, Zhejiang, China
| | - JinHong Liu
- Zhejiang Provincial Key Laboratory of Silkworm Bioreactor and Biomedicine, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou, Zhejiang, China
| | - Renjie Zhuang
- Zhejiang Provincial Key Laboratory of Silkworm Bioreactor and Biomedicine, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou, Zhejiang, China
| | - Chen Zhang
- Department of Biological Sciences, University of Denver, Denver, CO, 80210, USA
| | - Fei Lin
- Zhejiang Provincial Key Laboratory of Silkworm Bioreactor and Biomedicine, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou, Zhejiang, China
| | - Jun Wang
- Department of Orthopedics, Rongjun Hospital, Jiaxing, Zhejiang, China
| | - Sha Peng
- Zhejiang Provincial Key Laboratory of Silkworm Bioreactor and Biomedicine, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou, Zhejiang, China
| | - Wenping Zhang
- Zhejiang Provincial Key Laboratory of Silkworm Bioreactor and Biomedicine, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou, Zhejiang, China.
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Christensen C, Rose M, Cornett C, Allesø M. Decoding the Postulated Entourage Effect of Medicinal Cannabis: What It Is and What It Isn't. Biomedicines 2023; 11:2323. [PMID: 37626819 PMCID: PMC10452568 DOI: 10.3390/biomedicines11082323] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 08/11/2023] [Accepted: 08/16/2023] [Indexed: 08/27/2023] Open
Abstract
The 'entourage effect' term was originally coined in a pre-clinical study observing endogenous bio-inactive metabolites potentiating the activity of a bioactive endocannabinoid. As a hypothetical afterthought, this was proposed to hold general relevance to the usage of products based on Cannabis sativa L. The term was later juxtaposed to polypharmacy pertaining to full-spectrum medicinal Cannabis products exerting an overall higher effect than the single compounds. Since the emergence of the term, a discussion of its pharmacological foundation and relevance has been ongoing. Advocates suggest that the 'entourage effect' is the reason many patients experience an overall better effect from full-spectrum products. Critics state that the term is unfounded and used primarily for marketing purposes in the Cannabis industry. This scoping review aims to segregate the primary research claiming as well as disputing the existence of the 'entourage effect' from a pharmacological perspective. The literature on this topic is in its infancy. Existing pre-clinical and clinical studies are in general based on simplistic methodologies and show contradictory findings, with the clinical data mostly relying on anecdotal and real-world evidence. We propose that the 'entourage effect' is explained by traditional pharmacological terms pertaining to other plant-based medicinal products and polypharmacy in general (e.g., synergistic interactions and bioenhancement).
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Affiliation(s)
- Catalina Christensen
- Tetra Pharm Technologies ApS, Rugmarken 10, DK-3650 Ølstykke, Denmark; (M.R.); (M.A.)
| | - Martin Rose
- Tetra Pharm Technologies ApS, Rugmarken 10, DK-3650 Ølstykke, Denmark; (M.R.); (M.A.)
| | - Claus Cornett
- Department of Pharmacy, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark;
| | - Morten Allesø
- Tetra Pharm Technologies ApS, Rugmarken 10, DK-3650 Ølstykke, Denmark; (M.R.); (M.A.)
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5
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Salvatori ES, Morgan LV, Ferrarini S, Zilli GAL, Rosina A, Almeida MOP, Hackbart HCS, Rezende RS, Albeny-Simões D, Oliveira JV, Gasparetto A, Müller LG, Dal Magro J. Anti-Inflammatory and Antimicrobial Effects of Eucalyptus spp. Essential Oils: A Potential Valuable Use for an Industry Byproduct. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE : ECAM 2023; 2023:2582698. [PMID: 37416804 PMCID: PMC10322318 DOI: 10.1155/2023/2582698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Revised: 06/05/2023] [Accepted: 06/15/2023] [Indexed: 07/08/2023]
Abstract
In Brazil, the use of Eucalyptus is focused on the production of wood or pulp for the paper industry but without any general recovery of waste, with leaves and branches being left on the ground. One possibility is to use these residues as raw materials in the production of industrially relevant and value-added compounds such as essential oil. The aim of the present study was to investigate the chemical composition, yield, anti-inflammatory/antinociceptive activities, and acute toxicity in mice, as well as the antimicrobial effects of essential oils from the leaves of 7 varieties of Eucalyptus and hybrids against Escherichia coli, Staphylococcus aureus, and Candida albicans. The extraction of oils was carried out using hydrodistillation, and they were analyzed by gas chromatography coupled to mass spectrometry. Urocam and Grancam were the plants that obtained the highest oil yield, with yields of 3.32 and 2.30%, respectively. The main chemical components identified in these plants were 1.8 cineole and α-pinene. The antinociceptive effect of the 7 oils (50 mg/kg, p.o.) was initially assessed in the acetic acid-induced writhing test. In this assay, a significant (p < 0.05) antinociceptive/anti-inflammatory effect was observed from 4 tested essential oils (E. benthamii, E. saligna, and the hybrids Urocam and Grancam) when compared to the vehicle-treated group. This effect was then confirmed in the formalin-induced paw licking test. No toxicological effects or alterations were observed in motor coordination after the administration of the studied oils to the animals. In the antimicrobial evaluation, the seven essential oils inhibited the growth of S. aureus, E. coli, and C. albicans at different concentrations. Collectively, these results demonstrate that the essential oil from the leaves and branches of Eucalyptus species and varieties present potential biomedical applications and represent a source of antimicrobial and/or anti-inflammatory compounds.
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Affiliation(s)
- Emilly S. Salvatori
- School of Health, Community University of Chapecó Region (Unochapecó), Chapecó, SC, Brazil
| | - Letícia V. Morgan
- School of Health, Community University of Chapecó Region (Unochapecó), Chapecó, SC, Brazil
| | - Samara Ferrarini
- School of Health, Community University of Chapecó Region (Unochapecó), Chapecó, SC, Brazil
| | - Gabriela A. L. Zilli
- School of Health, Community University of Chapecó Region (Unochapecó), Chapecó, SC, Brazil
| | - Adriano Rosina
- School of Health, Community University of Chapecó Region (Unochapecó), Chapecó, SC, Brazil
| | - Manuelle O. P. Almeida
- Graduate Program in Environmental Sciences, Community University of Chapecó Region (Unochapecó), Chapecó, SC, Brazil
- School of Agriculture and Environment, Community University of Chapecó Region (Unochapecó), Chapecó, SC, Brazil
| | | | - Renan S. Rezende
- Graduate Program in Environmental Sciences, Community University of Chapecó Region (Unochapecó), Chapecó, SC, Brazil
- School of Agriculture and Environment, Community University of Chapecó Region (Unochapecó), Chapecó, SC, Brazil
| | - Daniel Albeny-Simões
- Graduate Program in Environmental Sciences, Community University of Chapecó Region (Unochapecó), Chapecó, SC, Brazil
- School of Agriculture and Environment, Community University of Chapecó Region (Unochapecó), Chapecó, SC, Brazil
| | | | - Adriana Gasparetto
- School of Health, Community University of Chapecó Region (Unochapecó), Chapecó, SC, Brazil
| | - Liz G. Müller
- School of Health, Community University of Chapecó Region (Unochapecó), Chapecó, SC, Brazil
- Graduate Program in Environmental Sciences, Community University of Chapecó Region (Unochapecó), Chapecó, SC, Brazil
| | - Jacir Dal Magro
- Graduate Program in Environmental Sciences, Community University of Chapecó Region (Unochapecó), Chapecó, SC, Brazil
- School of Agriculture and Environment, Community University of Chapecó Region (Unochapecó), Chapecó, SC, Brazil
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Abla KK, Domiati S, El Majzoub R, Mehanna MM. Propranolol-Loaded Limonene-Based Microemulsion Thermo-Responsive Mucoadhesive Nasal Nanogel: Design, In Vitro Assessment, Ex Vivo Permeation, and Brain Biodistribution. Gels 2023; 9:491. [PMID: 37367161 DOI: 10.3390/gels9060491] [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: 06/02/2023] [Revised: 06/10/2023] [Accepted: 06/13/2023] [Indexed: 06/28/2023] Open
Abstract
Propranolol is the first-line drug for managing migraine attacks. D-limonene is a citrus oil known for its neuroprotective mechanism. Thus, the current work aims to design a thermo-responsive intranasal limonene-based microemulsion mucoadhesive nanogel to improve propranolol efficacy. Microemulsion was fabricated using limonene and Gelucire® as the oily phase, Labrasol®, Labrafil®, and deionized water as the aqueous phase, and was characterized regarding its physicochemical features. The microemulsion was loaded in thermo-responsive nanogel and evaluated regarding its physical and chemical properties, in vitro release, and ex vivo permeability through sheep nasal tissues. Its safety profile was assessed via histopathological examination, and its capability to deliver propranolol effectively to rats' brains was examined using brain biodistribution analysis. Limonene-based microemulsion was of 133.7 ± 0.513 nm diametric size with unimodal size distribution and spheroidal shape. The nanogel showed ideal characteristics with good mucoadhesive properties and in vitro controlled release with 1.43-fold enhancement in ex vivo nasal permeability compared with the control gel. Furthermore, it displayed a safe profile as elucidated by the nasal histopathological features. The nanogel was able to improve propranolol brain availability with Cmax 970.3 ± 43.94 ng/g significantly higher than the control group (277.7 ± 29.71 ng/g) and with 382.4 % relative central availability, which confirms its potential for migraine management.
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Affiliation(s)
- Kawthar K Abla
- Pharmaceutical Nanotechnology Research Lab, Faculty of Pharmacy, Beirut Arab University, Beirut P.O. Box 11-5020, Lebanon
| | - Souraya Domiati
- Department of Pharmacology and Therapeutics, Faculty of Pharmacy, Beirut Arab University, Beirut P.O. Box 11-5020, Lebanon
| | - Rania El Majzoub
- Department of Biomedical Sciences, Faculty of Pharmacy, Lebanese International University, Beirut P.O. Box 11-5020, Lebanon
| | - Mohammed M Mehanna
- Department of Industrial Pharmacy, Faculty of Pharmacy, Alexandria University, Alexandria 21521, Egypt
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Schoss K, Kočevar Glavač N, Kreft S. Volatile Compounds in Norway Spruce ( Picea abies) Significantly Vary with Season. PLANTS (BASEL, SWITZERLAND) 2023; 12:188. [PMID: 36616317 PMCID: PMC9824094 DOI: 10.3390/plants12010188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 12/28/2022] [Accepted: 12/30/2022] [Indexed: 06/17/2023]
Abstract
Norway spruce (Picea abies) is one of the most important commercial conifer species naturally distributed in Europe. In this paper, the composition and abundance of essential oil and hydrosol from the needles and branches of P. abies were investigated with an additional evaluation of changes related to different times of the year, annual shoots and branches, and differences in composition under different microenvironments. Essential oils and hydrosols obtained via hydrodistillation were analyzed using gas chromatography-mass spectrometry (GC-MS), where 246 compounds in essential oil and 53 in hydrosols were identified. The relative amounts of monoterpenes, sesquiterpenes, and diterpenes in essential oil changed significantly during the year, with the highest peak of monoterpenes observed in April (72%), the highest abundance of sesquiterpenes observed in August (21%), and the highest abundance of diterpenes observed in June (27%). The individual compound with the highest variation was manool, with variation from 1.5% (April) to 18.7% (June). Our results also indicate that the essential oil with the lowest allergenic potential (lowest quantity of limonene and linalool) was obtained in late spring or summer. Location had no significant influence on composition, while the method of collection for distillation (whole branch or annual shoots) had a minor influence on the composition. All nine main compounds identified in the hydrosol samples were oxygenated monoterpenes. The composition of P. abies hydrosol was also significantly affected by season. The method of preparing the branches for distillation did not affect the composition of P. abies hydrosol, while the location had a minor effect on composition.
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Piccialli I, Tedeschi V, Caputo L, D’Errico S, Ciccone R, De Feo V, Secondo A, Pannaccione A. Exploring the Therapeutic Potential of Phytochemicals in Alzheimer’s Disease: Focus on Polyphenols and Monoterpenes. Front Pharmacol 2022; 13:876614. [PMID: 35600880 PMCID: PMC9114803 DOI: 10.3389/fphar.2022.876614] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Accepted: 04/11/2022] [Indexed: 12/21/2022] Open
Abstract
Alzheimer’s disease (AD) is a chronic, complex neurodegenerative disorder mainly characterized by the irreversible loss of memory and cognitive functions. Different hypotheses have been proposed thus far to explain the etiology of this devastating disorder, including those centered on the Amyloid-β (Aβ) peptide aggregation, Tau hyperphosphorylation, neuroinflammation and oxidative stress. Nonetheless, the therapeutic strategies conceived thus far to treat AD neurodegeneration have proven unsuccessful, probably due to the use of single-target drugs unable to arrest the progressive deterioration of brain functions. For this reason, the theoretical description of the AD etiology has recently switched from over-emphasizing a single deleterious process to considering AD neurodegeneration as the result of different pathogenic mechanisms and their interplay. Moreover, much relevance has recently been conferred to several comorbidities inducing insulin resistance and brain energy hypometabolism, including diabetes and obesity. As consequence, much interest is currently accorded in AD treatment to a multi-target approach interfering with different pathways at the same time, and to life-style interventions aimed at preventing the modifiable risk-factors strictly associated with aging. In this context, phytochemical compounds are emerging as an enormous source to draw on in the search for multi-target agents completing or assisting the traditional pharmacological medicine. Intriguingly, many plant-derived compounds have proven their efficacy in counteracting several pathogenic processes such as the Aβ aggregation, neuroinflammation, oxidative stress and insulin resistance. Many strategies have also been conceived to overcome the limitations of some promising phytochemicals related to their poor pharmacokinetic profiles, including nanotechnology and synthetic routes. Considering the emerging therapeutic potential of natural medicine, the aim of the present review is therefore to highlight the most promising phytochemical compounds belonging to two major classes, polyphenols and monoterpenes, and to report the main findings about their mechanisms of action relating to the AD pathogenesis.
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Affiliation(s)
- Ilaria Piccialli
- Division of Pharmacology, Department of Neuroscience, Reproductive and Dentistry Sciences, School of Medicine, University of Naples “Federico II”, Naples, Italy
| | - Valentina Tedeschi
- Division of Pharmacology, Department of Neuroscience, Reproductive and Dentistry Sciences, School of Medicine, University of Naples “Federico II”, Naples, Italy
| | - Lucia Caputo
- Department of Pharmacy, University of Salerno, Salerno, Italy
| | - Stefano D’Errico
- Department of Pharmacy, University of Naples “Federico II”, Naples, Italy
| | - Roselia Ciccone
- Division of Pharmacology, Department of Neuroscience, Reproductive and Dentistry Sciences, School of Medicine, University of Naples “Federico II”, Naples, Italy
| | - Vincenzo De Feo
- Department of Pharmacy, University of Salerno, Salerno, Italy
| | - Agnese Secondo
- Division of Pharmacology, Department of Neuroscience, Reproductive and Dentistry Sciences, School of Medicine, University of Naples “Federico II”, Naples, Italy
| | - Anna Pannaccione
- Division of Pharmacology, Department of Neuroscience, Reproductive and Dentistry Sciences, School of Medicine, University of Naples “Federico II”, Naples, Italy
- *Correspondence: Anna Pannaccione,
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Pereira EWM, Heimfarth L, Santos TK, Passos FRS, Siqueira-Lima P, Scotti L, Scotti MT, Almeida JRGDS, Campos AR, Coutinho HDM, Martin P, Quintans-Júnior LJ, Quintans JSS. Limonene, a citrus monoterpene, non-complexed and complexed with hydroxypropyl-β-cyclodextrin attenuates acute and chronic orofacial nociception in rodents: Evidence for involvement of the PKA and PKC pathway. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2022; 96:153893. [PMID: 35026511 DOI: 10.1016/j.phymed.2021.153893] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2021] [Revised: 12/05/2021] [Accepted: 12/11/2021] [Indexed: 06/14/2023]
Abstract
BACKGROUND Chronic orofacial pain is a serious public health problem with a prevalence of 7-11% in the population. This disorder has different etiologies and characteristics that make pharmacological treatment difficult. Natural products have been shown to be a promising source of treatments for the management of chronic pain, as an example the terpenes. PURPOSE The aim of this study was to evaluate the anti-nociceptive and anti-inflammatory effects of one of these terpenes, d-limonene (LIM - a common monoterpene found in citrus fruits) alone and complexed with hydroxypropyl-β-cyclodextrin (LIM/HPβCD) in preclinical animal models. METHODS Orofacial pain was induced by the administration of hypertonic saline on the corneal surface, the injection of formalin into the temporomandibular joint (TMJ), or chronic constriction injury of the infraorbital nerve (CCI-IoN). The study used male Wistar rats and Swiss mice treated with LIM (50 mg/kg), LIM/HPβCD (50 mg/kg), vehicle (control), gabapentin or morphine, and eyes wiping (induced by hypertonic saline), face rubbing (formalin-induced in TMJ) or mechanical hyperalgesia (provoked by CCI-IoN) were assessed. Additionally, ELISA was used to measure TNF-α, and western blot analysis to assess levels of PKAcα, NFκB, p38MAPK and phosphorylated PKC substrates. Serum levels of aspartate aminotransferase (AST) and alanine transferase (ALT) were also evaluated. RESULTS LIM and LIM/HPβCD significantly reduced (p < 0.001) corneal nociception and formalin-induced TMJ nociception. In addition, both substances attenuated (p < 0.001) mechanical hyperalgesia in the CCI-IoN model. The antinociceptive effect induced by LIM and HPβCD/LIM was associated with decreased TNF-α levels, downregulation of the NFκB and p38MAPK signalling pathways and reduced PKC substrate phosphorylation and PKA immunocontent. Moreover, the results demonstrated that complexation with HPβCD was able to decrease the therapeutic dose of LIM. CONCLUSION LIM was found to be a promising molecule for the treatment of orofacial pain due to its capacity to modulate some important mediators essential to the establishment of pain, and HPβCD can be a key tool to improve the profile of LIM.
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Affiliation(s)
- Erik W M Pereira
- Department of Physiology, Laboratory of Neuroscience and Pharmacological Assays (LANEF), Federal University of Sergipe, São Cristóvão, SE, Brazil; Health Sciences Graduate Program (PPGCS), Federal University of Sergipe, Aracaju, SE, Brazil
| | - Luana Heimfarth
- Department of Physiology, Laboratory of Neuroscience and Pharmacological Assays (LANEF), Federal University of Sergipe, São Cristóvão, SE, Brazil
| | - Tiffany Kb Santos
- Department of Physiology, Laboratory of Neuroscience and Pharmacological Assays (LANEF), Federal University of Sergipe, São Cristóvão, SE, Brazil
| | - Fabiolla R S Passos
- Department of Physiology, Laboratory of Neuroscience and Pharmacological Assays (LANEF), Federal University of Sergipe, São Cristóvão, SE, Brazil; Health Sciences Graduate Program (PPGCS), Federal University of Sergipe, Aracaju, SE, Brazil
| | | | | | | | | | - Adriana R Campos
- Experimental Biology Centre (NUBEX). University of Fortaleza, Fortaleza, CE, Brazil
| | | | - Patrick Martin
- Univ Artois, UniLaSalle, Unité Transformations & Agroressources, Béthune, France
| | - Lucindo J Quintans-Júnior
- Department of Physiology, Laboratory of Neuroscience and Pharmacological Assays (LANEF), Federal University of Sergipe, São Cristóvão, SE, Brazil; Health Sciences Graduate Program (PPGCS), Federal University of Sergipe, Aracaju, SE, Brazil
| | - Jullyana S S Quintans
- Department of Physiology, Laboratory of Neuroscience and Pharmacological Assays (LANEF), Federal University of Sergipe, São Cristóvão, SE, Brazil; Health Sciences Graduate Program (PPGCS), Federal University of Sergipe, Aracaju, SE, Brazil
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10
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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: 19] [Impact Index Per Article: 6.3] [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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Narciso AM, da Rosa CG, Nunes MR, Sganzerla WG, Hansen CM, de Melo APZ, Paes JV, Bertoldi FC, Barreto PLM, Masiero AV. Antimicrobial green silver nanoparticles in bone grafts functionalization for biomedical applications. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2021. [DOI: 10.1016/j.bcab.2021.102074] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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Eddin LB, Jha NK, Meeran MFN, Kesari KK, Beiram R, Ojha S. Neuroprotective Potential of Limonene and Limonene Containing Natural Products. Molecules 2021; 26:4535. [PMID: 34361686 PMCID: PMC8348102 DOI: 10.3390/molecules26154535] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Revised: 07/17/2021] [Accepted: 07/20/2021] [Indexed: 11/17/2022] Open
Abstract
Limonene is a monoterpene confined to the family of Rutaceae, showing several biological properties such as antioxidant, anti-inflammatory, anticancer, antinociceptive and gastroprotective characteristics. Recently, there is notable interest in investigating the pharmacological effects of limonene in various chronic diseases due to its mitigating effect on oxidative stress and inflammation and regulating apoptotic cell death. There are several available studies demonstrating the neuroprotective role of limonene in neurodegenerative diseases, including Alzheimer's disease, multiple sclerosis, epilepsy, anxiety, and stroke. The high abundance of limonene in nature, its safety profile, and various mechanisms of action make this monoterpene a favorable molecule to be developed as a nutraceutical for preventive purposes and as an alternative agent or adjuvant to modern therapeutic drugs in curbing the onset and progression of neurodegenerative diseases. This manuscript presents a comprehensive review of the available scientific literature discussing the pharmacological activities of limonene or plant products containing limonene which attribute to the protective and therapeutic ability in neurodegenerative disorders. This review has been compiled based on the existing published articles confined to limonene or limonene-containing natural products investigated for their neurotherapeutic or neuroprotective potential. All the articles available in English or the abstract in English were extracted from different databases that offer an access to diverse journals. These databases are PubMed, Scopus, Google Scholar, and Science Direct. Collectively, this review emphasizes the neuroprotective potential of limonene against neurodegenerative and other neuroinflammatory diseases. The available data are indicative of the nutritional use of products containing limonene and the pharmacological actions and mechanisms of limonene and may direct future preclinical and clinical studies for the development of limonene as an alternative or complementary phytomedicine. The pharmacophore can also provide a blueprint for further drug discovery using numerous drug discovery tools.
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Affiliation(s)
- Lujain Bader Eddin
- Department of Pharmacology and Therapeutics, College of Medicine and Health Sciences, United Arab Emirates University, P.O. Box 17666, Al Ain 17666, United Arab Emirates; (L.B.E.); (M.F.N.M.); (R.B.)
| | - Niraj Kumar Jha
- Department of Biotechnology, School of Engineering & Technology, Sharda University, Greater Noida, Uttar Pradesh 201310, India;
| | - M. F. Nagoor Meeran
- Department of Pharmacology and Therapeutics, College of Medicine and Health Sciences, United Arab Emirates University, P.O. Box 17666, Al Ain 17666, United Arab Emirates; (L.B.E.); (M.F.N.M.); (R.B.)
| | - Kavindra Kumar Kesari
- Department of Applied Physics, School of Science, Aalto University, 00076 Espoo, Finland;
- Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, 00076 Espoo, Finland
| | - Rami Beiram
- Department of Pharmacology and Therapeutics, College of Medicine and Health Sciences, United Arab Emirates University, P.O. Box 17666, Al Ain 17666, United Arab Emirates; (L.B.E.); (M.F.N.M.); (R.B.)
| | - Shreesh Ojha
- Department of Pharmacology and Therapeutics, College of Medicine and Health Sciences, United Arab Emirates University, P.O. Box 17666, Al Ain 17666, United Arab Emirates; (L.B.E.); (M.F.N.M.); (R.B.)
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Piccialli I, Tedeschi V, Caputo L, Amato G, De Martino L, De Feo V, Secondo A, Pannaccione A. The Antioxidant Activity of Limonene Counteracts Neurotoxicity Triggered byAβ 1-42 Oligomers in Primary Cortical Neurons. Antioxidants (Basel) 2021; 10:antiox10060937. [PMID: 34207788 PMCID: PMC8227170 DOI: 10.3390/antiox10060937] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Revised: 06/01/2021] [Accepted: 06/03/2021] [Indexed: 11/16/2022] Open
Abstract
Many natural-derived compounds, including the essential oils from plants, are investigated to find new potential protective agents in several neurodegenerative disorders such as Alzheimer's disease (AD). In the present study, we tested the neuroprotective effect of limonene, one of the main components of the genus Citrus, against the neurotoxicity elicited by Aβ1-42 oligomers, currently considered a triggering factor in AD. To this aim, we assessed the acetylcholinesterase activity by Ellman's colorimetric method, the mitochondrial dehydrogenase activity by MTT assay, the nuclear morphology by Hoechst 33258, the generation of reactive oxygen species (ROS) by DCFH-DA fluorescent dye, and the electrophysiological activity of KV3.4 potassium channel subunits by patch-clamp electrophysiology. Interestingly, the monoterpene limonene showed a specific activity against acetylcholinesterase with an IC50 almost comparable to that of galantamine, used as positive control. Moreover, at the concentration of 10 µg/mL, limonene counteracted the increase of ROS production triggered by Aβ1-42 oligomers, thus preventing the upregulation of KV3.4 activity. This, in turn, prevented cell death in primary cortical neurons, showing an interesting neuroprotective profile against Aβ1-42-induced toxicity. Collectively, the present results showed that the antioxidant properties of the main component of the genus Citrus, limonene, may be useful to prevent neuronal suffering induced by Aβ1-42 oligomers preventing the hyperactivity of KV3.4.
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Affiliation(s)
- Ilaria Piccialli
- Department of Neuroscience, Division of Pharmacology, Reproductive and Odontostomatological Sciences, School of Medicine, “Federico II” University of Naples, 80131 Naples, Italy; (I.P.); (V.T.)
| | - Valentina Tedeschi
- Department of Neuroscience, Division of Pharmacology, Reproductive and Odontostomatological Sciences, School of Medicine, “Federico II” University of Naples, 80131 Naples, Italy; (I.P.); (V.T.)
| | - Lucia Caputo
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, Italy; (L.C.); (G.A.); (L.D.M.); (V.D.F.)
| | - Giuseppe Amato
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, Italy; (L.C.); (G.A.); (L.D.M.); (V.D.F.)
| | - Laura De Martino
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, Italy; (L.C.); (G.A.); (L.D.M.); (V.D.F.)
| | - Vincenzo De Feo
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, Italy; (L.C.); (G.A.); (L.D.M.); (V.D.F.)
| | - Agnese Secondo
- Department of Neuroscience, Division of Pharmacology, Reproductive and Odontostomatological Sciences, School of Medicine, “Federico II” University of Naples, 80131 Naples, Italy; (I.P.); (V.T.)
- Correspondence: (A.S.); (A.P.); Tel.: +39-0817463335 (A.P.)
| | - Anna Pannaccione
- Department of Neuroscience, Division of Pharmacology, Reproductive and Odontostomatological Sciences, School of Medicine, “Federico II” University of Naples, 80131 Naples, Italy; (I.P.); (V.T.)
- Correspondence: (A.S.); (A.P.); Tel.: +39-0817463335 (A.P.)
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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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Nagoor Meeran M, Seenipandi A, Javed H, Sharma C, Hashiesh HM, Goyal SN, Jha NK, Ojha S. Can limonene be a possible candidate for evaluation as an agent or adjuvant against infection, immunity, and inflammation in COVID-19? Heliyon 2021; 7:e05703. [PMID: 33490659 PMCID: PMC7810623 DOI: 10.1016/j.heliyon.2020.e05703] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Revised: 09/16/2020] [Accepted: 12/08/2020] [Indexed: 01/08/2023] Open
Abstract
Coronavirus disease (COVID-19) caused by novel severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is an ongoing pandemic and presents a public health emergency. It has affected millions of people and continues to affect more, despite the tremendous social preventive measures. The therapeutic strategy relies on suppressing infectivity and inflammation, along with immune modulation. The identification of candidate drugs effective for COVID-19 is crucial, thus many natural products including phytochemicals are also being proposed for repurposing and evaluated for their potential in COVID-19. Among numerous phytochemicals, limonene (LMN), a dietary terpene of natural origin has been recently showed to target viral proteins in the in-silico studies. LMN is one of the main compounds identified in many citrus plants, available and accessible in diets and well-studied for its therapeutic benefits. Due to dietary nature, relative safety and efficacy along with favorable physicochemical properties, LMN has been suggested to be a fascinating candidate for further investigation in COVID-19. LMN showed to modulate numerous signaling pathways and inhibits inflammatory mediators, including cytokines, chemokines, adhesion molecules, prostanoids, and eicosanoids. We hypothesized that given the pathogenesis of COVID-19 involving infection, inflammation, and immunity, LMN may have potential to limit the severity and progression of the disease owing to its immunomodulatory, anti-inflammatory, and antiviral properties. The present article discusses the possibilities of LMN in SARS-CoV-2 infections based on its immunomodulatory, anti-inflammatory, and antiviral properties. Though, the suggestion on the possible use of LMN in COVID-19 remains inconclusive until the in-silico effects confirmed in the experimental studies and further proof of the concept studies. The candidature of LMN in COVID-19 treatment somewhat appear speculative but cannot be overlooked provided favorable physiochemical and druggable properties. The safety and efficacy of LMN are necessary to be established in preclinical and clinical studies before making suggestions for use in humans.
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Affiliation(s)
- M.F. Nagoor Meeran
- Department of Pharmacology and Therapeutics, College of Medicine and Health Sciences, PO Box - 17666, United Arab Emirates University, Al Ain, United Arab Emirates
| | - A. Seenipandi
- Department of Pharmacology and Therapeutics, College of Medicine and Health Sciences, PO Box - 17666, United Arab Emirates University, Al Ain, United Arab Emirates
| | - Hayate Javed
- Department of Anatomy, College of Medicine and Health Sciences, PO Box - 17666, United Arab Emirates University, Al Ain, United Arab Emirates
| | - Charu Sharma
- Department of Internal Medicine, College of Medicine and Health Sciences, PO Box - 17666, United Arab Emirates University, Al Ain, United Arab Emirates
| | - Hebaallah Mamdouh Hashiesh
- Department of Pharmacology and Therapeutics, College of Medicine and Health Sciences, PO Box - 17666, United Arab Emirates University, Al Ain, United Arab Emirates
| | - Sameer N. Goyal
- Shri Vile Parle Kelvani Mandal's Institute of Pharmacy, Dhule 424001, Maharashtra, India
| | - Niraj Kumar Jha
- Department of Biotechnology, School of Engineering & Technology, Sharda University, Knowledge Park III, Greater Noida, Uttar Pradesh 201310, India
| | - Shreesh Ojha
- Department of Pharmacology and Therapeutics, College of Medicine and Health Sciences, PO Box - 17666, United Arab Emirates University, Al Ain, United Arab Emirates
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Antonelli M, Donelli D, Barbieri G, Valussi M, Maggini V, Firenzuoli F. Forest Volatile Organic Compounds and Their Effects on Human Health: A State-of-the-Art Review. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:ijerph17186506. [PMID: 32906736 PMCID: PMC7559006 DOI: 10.3390/ijerph17186506] [Citation(s) in RCA: 57] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/09/2020] [Revised: 09/03/2020] [Accepted: 09/04/2020] [Indexed: 12/24/2022]
Abstract
The aim of this research work is to analyze the chemistry and diversity of forest VOCs (volatile organic compounds) and to outline their evidence-based effects on health. This research work was designed as a narrative overview of the scientific literature. Inhaling forest VOCs like limonene and pinene can result in useful antioxidant and anti-inflammatory effects on the airways, and the pharmacological activity of some terpenes absorbed through inhalation may be also beneficial to promote brain functions by decreasing mental fatigue, inducing relaxation, and improving cognitive performance and mood. The tree composition can markedly influence the concentration of specific VOCs in the forest air, which also exhibits cyclic diurnal variations. Moreover, beneficial psychological and physiological effects of visiting a forest cannot be solely attributed to VOC inhalation but are due to a global and integrated stimulation of the five senses, induced by all specific characteristics of the natural environment, with the visual component probably playing a fundamental role in the overall effect. Globally, these findings can have useful implications for individual wellbeing, public health, and landscape design. Further clinical and environmental studies are advised, since the majority of the existing evidence is derived from laboratory findings.
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Affiliation(s)
- Michele Antonelli
- Terme di Monticelli, 43022 Monticelli Terme PR, Italy
- Institute of Public Health, University of Parma, 43125 Parma PR, Italy
- Correspondence:
| | - Davide Donelli
- CERFIT, Careggi University Hospital, 50139 Firenze FI, Italy; (D.D.); (V.M.); (F.F.)
- AUSL-IRCCS Reggio Emilia, 42122 Reggio Emilia RE, Italy
| | - Grazia Barbieri
- Binini Partners S.r.l. Engineering and Architecture, 42121 Reggio Emilia RE, Italy;
| | - Marco Valussi
- European Herbal and Traditional Medicine Practitioners Association (EHTPA), Norwich NR3 1HG, UK;
| | - Valentina Maggini
- CERFIT, Careggi University Hospital, 50139 Firenze FI, Italy; (D.D.); (V.M.); (F.F.)
| | - Fabio Firenzuoli
- CERFIT, Careggi University Hospital, 50139 Firenze FI, Italy; (D.D.); (V.M.); (F.F.)
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Hu T, Gong Z, Wan Y, Li Y, Gao X, Lun J, Huang S, Cao H. [Establishment of a gp120 transgenic mouse model with α7 nAChR knockout]. NAN FANG YI KE DA XUE XUE BAO = JOURNAL OF SOUTHERN MEDICAL UNIVERSITY 2020; 40:1184-1191. [PMID: 32895175 DOI: 10.12122/j.issn.1673-4254.2020.08.17] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
OBJECTIVE To construct a HIV-1 gp120 transgenic mouse model (gp120+) with α7 nicotinic acetylcholine receptor (α7nAChR) gene knockout. METHODS The α7nAChR gene knockout mice (α7R-/-) were crossed with HIV-1gp120 transgenic mice (gp120+) to generate F1 generation mice. We selected the F1 mice with the genotype of α7R+/-/gp120+ to mate to obtain the F2 mice. The genotypes of the F3 mice were identified by PCR, and the protein expressions in the double transgenic animal model was analyzed by immunohistochemistry. BV2 cells were treated with gp120 protein and α7nAChR inhibitor, and the expressions of IL-1β and TNF-α were detected using ELISA. RESULTS The results of PCR showed the bands of the expected size in F3 mice. Two F3 mice with successful double gene editing (α7R-/-/gp120+) were obtained, and immunohistochemistry showed that the brain tissue of the mice did not express α7 nAChR but with high gp120 protein expression. In the in vitro cell experiment, treatment with gp120 promoted the secretion of IL-1β and TNF-α in BV2 cells, while inhibition of α7nAChR significantly decreased the expression of IL-1β and TNF-α (P < 0.001). CONCLUSIONS By mating gp120 Tg mice with α7R-/- mice, we obtained gp120 transgenic mice with α7nAChR gene deletion, which serve as a new animal model for exploring the role of α7nAChR in gp120-induced neurotoxicity.
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Affiliation(s)
- Tongtong Hu
- Department of Microbiology, School of Public Health, Southern Medical University/Guangdong Key Laboratory of Tropical Diseases, Guangzhou 510515, China
| | - Zelong Gong
- Department of Microbiology, School of Public Health, Southern Medical University/Guangdong Key Laboratory of Tropical Diseases, Guangzhou 510515, China
| | - Yu Wan
- Department of Microbiology, School of Public Health, Southern Medical University/Guangdong Key Laboratory of Tropical Diseases, Guangzhou 510515, China
| | - Yubin Li
- Department of Microbiology, School of Public Health, Southern Medical University/Guangdong Key Laboratory of Tropical Diseases, Guangzhou 510515, China
| | - Xuefeng Gao
- Department of Microbiology, School of Public Health, Southern Medical University/Guangdong Key Laboratory of Tropical Diseases, Guangzhou 510515, China
| | - Jingxian Lun
- Department of Microbiology, School of Public Health, Southern Medical University/Guangdong Key Laboratory of Tropical Diseases, Guangzhou 510515, China
| | - Shenghe Huang
- Department of Microbiology, School of Public Health, Southern Medical University/Guangdong Key Laboratory of Tropical Diseases, Guangzhou 510515, China.,Los Angeles Children's Hospital, University of Southern California, Los Angeles, 90027, USA
| | - Hong Cao
- Department of Microbiology, School of Public Health, Southern Medical University/Guangdong Key Laboratory of Tropical Diseases, Guangzhou 510515, China
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Amini R, Asle-Rousta M, Aghazadeh S. Hepatoprotective effect of limonene against chronic immobilization induced liver damage in rats. Naunyn Schmiedebergs Arch Pharmacol 2020; 393:2053-2059. [PMID: 32514601 DOI: 10.1007/s00210-020-01915-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Accepted: 05/28/2020] [Indexed: 12/15/2022]
Abstract
Prolonged immobilization may impair the physiological functions of various organs of the body, including the liver, brain, and heart. In this study, we investigated the hepatoprotective effect of limonene (a monoterpene) in male rats exposed to chronic immobilization. Rats were exposed to immobilization stress (6 h/21 days) and received limonene (10 mg/kg, oral gavage) during this period. Chronic immobilization increased the levels of liver enzymes alanine aminotransferase, aspartate aminotransferase, and alkaline phosphatase in serum. Increased levels of malondialdehyde and decreased glutathione content were also observed in the liver tissue of immobilized rats. Expression of TNF-α, IL-1β, IL-6, and NF-κB mRNA was increased, and infiltrated cells were also observed in the liver parenchyma in rats exposed to chronic immobilization. Limonene prevented all these changes in immobilized rats. These results suggest that limonene, due to its antioxidant and anti-inflammatory effects, rescues the liver from damages caused by chronic immobilization.
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Affiliation(s)
- Rahim Amini
- Biology Research Center, Zanjan Branch, Islamic Azad University, Zanjan, Iran
| | | | - Safieh Aghazadeh
- Department of Biochemistry, Faculty of Veterinary Medicine, Urmia University, Urmia, Iran
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Younis NS. D-Limonene mitigate myocardial injury in rats through MAPK/ERK/NF-κB pathway inhibition. THE KOREAN JOURNAL OF PHYSIOLOGY & PHARMACOLOGY : OFFICIAL JOURNAL OF THE KOREAN PHYSIOLOGICAL SOCIETY AND THE KOREAN SOCIETY OF PHARMACOLOGY 2020; 24:259-266. [PMID: 32392917 PMCID: PMC7193911 DOI: 10.4196/kjpp.2020.24.3.259] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/02/2020] [Revised: 02/13/2020] [Accepted: 02/14/2020] [Indexed: 12/13/2022]
Abstract
Cardiovascular diseases are the primary reason of mortality, among which myocardial infarction (MI) is the most dominant and prevalent. This study was considered to examine D-Limonene protective action against isoproterenol (ISO) induced MI. Wister male rats were dispersed into four groups. Normal and D-Limonene control group in which rats administered saline or D-Limonene. ISO control animals were administered saline for 21 days then challenged with ISO (85 mg/kg, subcutaneously) on 20th and 21st day for MI induction. D-Limonene pretreated group in which animals were pretreated with D-Limonene 50 mg/kg orally for 21 days then administered ISO on 20th and 21st day. MI prompted variations were assessed by myocardial infarction area determination, blood pressure (BP) alterations, cardiac injury biomarkers and inflammatory mediators measurements. For more depth investigation, both the apoptotic status was evaluated via measuring mRNA expression of Bcl-2 and Bax as well as mitogen-activated protein kinase-extracellular signal-regulated kinase (MAPK-ERK) signal transduction were investigated via Western blotting. MI group revealed significant infarcted area, blood pressure alterations, myocardial injury enzymes intensification together with inflammatory cytokines amplification. MI was associated with activation of MAPK-ERK signal pathway and apoptotic status within the myocardium. On the other hand, pretreated with D-Limonene demonstrated deterred infracted area, reduced myocardial enzymes, improved BP indices, lessened inflammatory levels. Furthermore, D-Limonene pretreatment caused a decline in MAPK proteins pathway and Bax relative mRNA expression, while intensifying Bcl-2 mRNA expression promoting that D-Limonene may constrain MI induced myocardial apoptosis. D-Limonene mitigated MI injury through MAPK/NF-κB pathway inhibition and anti-apoptotic effect.
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Affiliation(s)
- Nancy Safwat Younis
- Department of Pharmaceutical Sciences, College of Clinical Pharmacy, King Faisal University, Al-Hasa 31982, Kingdom of Saudi Arabia
- Department of Pharmacology, Zagazig University, Zagazig 44519, Egypt
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Chronic Musculoskeletal Pain and Nutrition: Where Are We and Where Are We Heading? PM R 2020; 12:1268-1278. [DOI: 10.1002/pmrj.12346] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2019] [Revised: 01/24/2020] [Accepted: 02/10/2020] [Indexed: 02/06/2023]
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Petrović J, Stojković D, Soković M. Terpene core in selected aromatic and edible plants: Natural health improving agents. ADVANCES IN FOOD AND NUTRITION RESEARCH 2019; 90:423-451. [PMID: 31445600 DOI: 10.1016/bs.afnr.2019.02.009] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Aromatic plants synthesize and produce aromatic molecules, among these compounds some of them belong to terpenes and terpenoids. Plant species have specific genes involved in secondary metabolism which allows them to synthesize various compounds with terpene core. These kinds of plant species are also known as herbal drugs and they are primarily used as components in medicinal products or simply as health foods. This chapter will focus on terpene and terpenoid compounds found in selected edible and aromatic plants belonging to several plant families. Selected plant species are briefly discussed. Biologically active compounds with terpene core are most frequently found in essential oils of the edible and aromatic species, as well as they are separately isolated and identified from the extracts. Health beneficial effects coming from terpene compounds found in edible and aromatic plants are further presented and include antimicrobial, antiviral, cytotoxic, anticancer, anti-inflammatory and many other pharmacological activities.
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Affiliation(s)
- Jovana Petrović
- Department of Plant Physiology, Institute for Biological Research "Siniša Stanković", University of Belgrade, Belgrade, Serbia
| | - Dejan Stojković
- Department of Plant Physiology, Institute for Biological Research "Siniša Stanković", University of Belgrade, Belgrade, Serbia
| | - Marina Soković
- Department of Plant Physiology, Institute for Biological Research "Siniša Stanković", University of Belgrade, Belgrade, Serbia.
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de Souza MC, Vieira AJ, Beserra FP, Pellizzon CH, Nóbrega RH, Rozza AL. Gastroprotective effect of limonene in rats: Influence on oxidative stress, inflammation and gene expression. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2019; 53:37-42. [PMID: 30668410 DOI: 10.1016/j.phymed.2018.09.027] [Citation(s) in RCA: 78] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2018] [Revised: 07/31/2018] [Accepted: 09/03/2018] [Indexed: 06/09/2023]
Abstract
BACKGROUND In an increasing search for natural products that may heal the ulcers and avoid its recurrence, limonene appears as a promising candidate. HYPOTHESIS/PURPOSE The present study aimed to investigate the protective effect of limonene in ethanol-induced gastric ulcers, in addition, to investigate the involvement of antioxidant and anti-inflammatory activities, besides the modulation of gene expression. STUDY DESIGN Male Wistar rats were orally treated with vehicle (8% tween 80), carbenoxolone (100 mg/kg) or limonene (25, 50 or 100 mg/kg) and then orally received ethanol to induce gastric ulcers formation. METHODS The activity of myeloperoxidase (MPO) was measured. Levels of glutathione (GSH) and activities of glutathione peroxidase (GPx), glutathione reductase (GR) and superoxide dismutase (SOD) were measured. We investigated the anti-inflammatory effect of limonene measuring the levels of pro-inflammatory cytokines tumor necrosis factor-a (TNF-a), interleukin-6 (IL-6), interleukin-1β (IL-1β) and anti-inflammatory cytokine interleukin-10 (IL-10) by ELISA. Additionally, we investigate through real-time PCR (qPCR) the gene expression of nuclear factor-kappa B (Nf-κb), Gpx, Il-1β, Mpo, and Il-10. RESULTS Our results showed that limonene 50 mg/kg was the lowest effective dose, offering 93% of reduction in gastric ulcer area compared with the vehicle. There was an increase in mucus production and higher preservation of gastric mucosa integrity after treatment with limonene.There was a reduction in the MPO activity, a biomarker of neutrophils infiltration, and an increase in GPx activity, suggesting an antioxidant effect. Limonene displayed anti-inflammatory activity through decreasing the levels of TNF-a, IL-6, and IL-1β and increasing the level of IL-10. Limonene could down-regulate the expression of Nf-κb, Il-1β, and Mpo and up-regulate the expression of Gpx. CONCLUSION Our results demonstrate that oral treatment with limonene exerts gastroprotection through local mucosal defense mechanisms, such as increasing the mucus production, modulation of the oxidative stress and inflammatory response and inhibition of Nf-κb expression.
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Affiliation(s)
- Matheus Chiaradia de Souza
- Department of Morphology, São Paulo State University (UNESP), Institute of Biosciences, Botucatu, Brazil
| | - Ana Júlia Vieira
- Department of Morphology, São Paulo State University (UNESP), Institute of Biosciences, Botucatu, Brazil
| | - Fernando Pereira Beserra
- Department of Morphology, São Paulo State University (UNESP), Institute of Biosciences, Botucatu, Brazil
| | - Cláudia Helena Pellizzon
- Department of Morphology, São Paulo State University (UNESP), Institute of Biosciences, Botucatu, Brazil
| | - Rafael Henrique Nóbrega
- Department of Morphology, São Paulo State University (UNESP), Institute of Biosciences, Botucatu, Brazil
| | - Ariane Leite Rozza
- Department of Morphology, São Paulo State University (UNESP), Institute of Biosciences, Botucatu, Brazil.
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Magar S, Nayak D, Mahajan UB, Patil KR, Shinde SD, Goyal SN, Swaminarayan S, Patil CR, Ojha S, Kundu CN. Ultra-diluted Toxicodendron pubescens attenuates pro-inflammatory cytokines and ROS- mediated neuropathic pain in rats. Sci Rep 2018; 8:13562. [PMID: 30202036 PMCID: PMC6131166 DOI: 10.1038/s41598-018-31971-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2018] [Accepted: 08/28/2018] [Indexed: 12/20/2022] Open
Abstract
Despite the availability of multiple therapeutic agents, the search for novel pain management of neuropathic pain is still a challenge. Oxidative stress and inflammatory signaling are prominently involved in clinical manifestation of neuropathic pain. Toxicodendron pubescens, popularly known as Rhus Tox (RT) is recommended in alternative medicines as an anti-inflammatory and analgesic remedy. Earlier, we reported anti-inflammatory, anti-arthritic and immunomodulatory activities of Rhus Tox. In continuation, we evaluated antinociceptive efficacy of Rhus Tox in the neuropathic pain and delineated its underlying mechanism. Initially, in-vitro assay using LPS-mediated ROS-induced U-87 glioblastoma cells was performed to study the effect of Rhus Tox on reactive oxygen species (ROS), anti-oxidant status and cytokine profile. Rhus Tox decreased oxidative stress and cytokine release with restoration of anti-oxidant systems. Chronic treatment with Rhus Tox ultra dilutions for 14 days ameliorated neuropathic pain revealed as inhibition of cold, warm and mechanical allodynia along with improved motor nerve conduction velocity (MNCV) in constricted nerve. Rhus Tox decreased the oxidative and nitrosative stress by reducing malondialdehyde (MDA) and nitric oxide (NO) content, respectively along with up regulated glutathione (GSH), superoxide dismutase (SOD) and catalase activity in sciatic nerve of rats. Notably, Rhus Tox treatment caused significant reductions in the levels of tumor necrosis factor (TNF-α), interleukin-6 (IL-6) and interleukin-1β (IL-1β) as compared with CCI-control group. Protective effect of Rhus Tox against CCI-induced sciatic nerve injury in histopathology study was exhibited through maintenance of normal nerve architecture and inhibition of inflammatory changes. Overall, neuroprotective effect of Rhus Tox in CCI-induced neuropathic pain suggests the involvement of anti-oxidative and anti-inflammatory mechanisms.
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Affiliation(s)
- Shital Magar
- Department of Pharmacology, R. C. Patel Institute of Pharmaceutical Education and Research, Shirpur- 425405, Dist. Dhule, Maharashtra, India
| | - Deepika Nayak
- School of Biotechnology, Kalinga Institute of Industrial technology (a deemed to be University), Campus-11, Patia, Bhubaneswar, Odisha, Pin-751024, India
| | - Umesh B Mahajan
- Department of Pharmacology, R. C. Patel Institute of Pharmaceutical Education and Research, Shirpur- 425405, Dist. Dhule, Maharashtra, India
| | - Kalpesh R Patil
- Department of Pharmacology, R. C. Patel Institute of Pharmaceutical Education and Research, Shirpur- 425405, Dist. Dhule, Maharashtra, India
| | - Sachin D Shinde
- Department of Pharmacology, R. C. Patel Institute of Pharmaceutical Education and Research, Shirpur- 425405, Dist. Dhule, Maharashtra, India
| | - Sameer N Goyal
- SVKM's Institute of Pharmacy, Dhule-424001, Dist-Dhule, Maharashtra, India
| | - Shivang Swaminarayan
- Janmangal Homeopathy and Wellness Centre, Bopal, Ahmedabad, Gujarat, 380058, India
| | - Chandragouda R Patil
- Department of Pharmacology, R. C. Patel Institute of Pharmaceutical Education and Research, Shirpur- 425405, Dist. Dhule, Maharashtra, India.
| | - Shreesh Ojha
- Department of Pharmacology & Therapeutics, College of Medicine & Health Sciences, UAE University, Al Ain, UAE.
| | - Chanakya Nath Kundu
- School of Biotechnology, Kalinga Institute of Industrial technology (a deemed to be University), Campus-11, Patia, Bhubaneswar, Odisha, Pin-751024, India.
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Lima MPD, Lopes EM, Gomes LDS, França ARDS, Acha BT, Carvalho ALM, Almeida FRDC. Technological development of microemulsions with perspectives for pain treatment: a patent review. Expert Opin Ther Pat 2018; 28:691-702. [PMID: 30175633 DOI: 10.1080/13543776.2018.1519025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
INTRODUCTION Microemulsions are thermodynamically stable translucent systems widely used for systemic delivery of drugs. The present study is the first to analyze the biotechnological potential of microemulsion systems for therapeutic purposes, through transdermal route, for pain treatment. AREAS COVERED Patents were searched in the World Intellectual Property Organization (WIPO), European Patent Office (Espacenet), United States Patent and Trademark Office (USPTO) and National Institute of Intellectual Property (INPI). The inclusion criteria were published patents containing the keywords; 'microemulsion' and 'transdermal' in their title or abstract. 208 patents were found. However, only those patents which mentioned in their abstract or in their description the use of microemulsion system (object of invention) for pain treatment were selected. Were excluded duplicate patents and those that did not report pharmacological use of MEs specifically for pain treatment. Thus, sixteen patents were selected and described in the present study. EXPERT OPINION Patents were found that focused specifically on the development process of microemulsion systems, the inclusion of essential oils in microemulsions, which place microemulsions as delivery systems for NSAIDs and other substances, as well as microemulsions for transdermal administration. These studies reinforce the therapeutic applicability of MEs in the treatment of acute and chronic pain.
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Affiliation(s)
| | - Everton Moraes Lopes
- a Medicinal Plants Research nucleus, Center of Health Sciences , Federal University of Piauí , Teresina , Brazil
| | - Laércio da Silva Gomes
- a Medicinal Plants Research nucleus, Center of Health Sciences , Federal University of Piauí , Teresina , Brazil
| | - Ana Rita de Sousa França
- a Medicinal Plants Research nucleus, Center of Health Sciences , Federal University of Piauí , Teresina , Brazil
| | - Boris Timah Acha
- a Medicinal Plants Research nucleus, Center of Health Sciences , Federal University of Piauí , Teresina , Brazil
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Sztukowski K, Nip K, Ostwald PN, Sathler MF, Sun JL, Shou J, Jorgensen ET, Brown TE, Elder JH, Miller C, Hofmann F, VandeWoude S, Kim S. HIV induces synaptic hyperexcitation via cGMP-dependent protein kinase II activation in the FIV infection model. PLoS Biol 2018; 16:e2005315. [PMID: 30052626 PMCID: PMC6082575 DOI: 10.1371/journal.pbio.2005315] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Revised: 08/08/2018] [Accepted: 07/13/2018] [Indexed: 11/19/2022] Open
Abstract
Over half of individuals infected with human immunodeficiency virus (HIV) suffer from HIV-associated neurocognitive disorders (HANDs), yet the molecular mechanisms leading to neuronal dysfunction are poorly understood. Feline immunodeficiency virus (FIV) naturally infects cats and shares its structure, cell tropism, and pathology with HIV, including wide-ranging neurological deficits. We employ FIV as a model to elucidate the molecular pathways underlying HIV-induced neuronal dysfunction, in particular, synaptic alteration. Among HIV-induced neuron-damaging products, HIV envelope glycoprotein gp120 triggers elevation of intracellular Ca2+ activity in neurons, stimulating various pathways to damage synaptic functions. We quantify neuronal Ca2+ activity using intracellular Ca2+ imaging in cultured hippocampal neurons and confirm that FIV envelope glycoprotein gp95 also elevates neuronal Ca2+ activity. In addition, we reveal that gp95 interacts with the chemokine receptor, CXCR4, and facilitates the release of intracellular Ca2+ by the activation of the endoplasmic reticulum (ER)-associated Ca2+ channels, inositol triphosphate receptors (IP3Rs), and synaptic NMDA receptors (NMDARs), similar to HIV gp120. This suggests that HIV gp120 and FIV gp95 share a core pathological process in neurons. Significantly, gp95's stimulation of NMDARs activates cGMP-dependent protein kinase II (cGKII) through the activation of the neuronal nitric oxide synthase (nNOS)-cGMP pathway, which increases Ca2+ release from the ER and promotes surface expression of AMPA receptors, leading to an increase in synaptic activity. Moreover, we culture feline hippocampal neurons and confirm that gp95-induced neuronal Ca2+ overactivation is mediated by CXCR4 and cGKII. Finally, cGKII activation is also required for HIV gp120-induced Ca2+ hyperactivation. These results thus provide a novel neurobiological mechanism of cGKII-mediated synaptic hyperexcitation in HAND.
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Affiliation(s)
- Keira Sztukowski
- College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, Colorado, United States of America
| | - Kaila Nip
- Cellular and Molecular Biology Graduate Program, Colorado State University, Fort Collins, Colorado, United States of America
| | - Paige N. Ostwald
- Cellular and Molecular Biology Graduate Program, Colorado State University, Fort Collins, Colorado, United States of America
| | - Matheus F. Sathler
- Department of Biomedical Sciences, Colorado State University, Fort Collins, Colorado, United States of America
| | - Julianna L. Sun
- Department of Biomedical Sciences, Colorado State University, Fort Collins, Colorado, United States of America
- Molecular, Cellular and Integrative Neurosciences, Colorado State University, Fort Collins, Colorado, United States of America
| | - Jiayi Shou
- Department of Biomedical Sciences, Colorado State University, Fort Collins, Colorado, United States of America
| | - Emily T. Jorgensen
- Pharmaceutical Science and Neuroscience, University of Wyoming, Laramie, Wyoming, United States of America
| | - Travis E. Brown
- Pharmaceutical Science and Neuroscience, University of Wyoming, Laramie, Wyoming, United States of America
| | - John H. Elder
- Department of Immunology and Microbiology, The Scripps Research Institute, La Jolla, California, United States of America
| | - Craig Miller
- Department of Microbiology, Immunology, and Pathology, Colorado State University, Fort Collins, Colorado, United States of America
| | | | - Sue VandeWoude
- Department of Microbiology, Immunology, and Pathology, Colorado State University, Fort Collins, Colorado, United States of America
| | - Seonil Kim
- Cellular and Molecular Biology Graduate Program, Colorado State University, Fort Collins, Colorado, United States of America
- Department of Biomedical Sciences, Colorado State University, Fort Collins, Colorado, United States of America
- Molecular, Cellular and Integrative Neurosciences, Colorado State University, Fort Collins, Colorado, United States of America
- * E-mail:
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Singh AK, Kumar S, Vinayak M. Recent development in antihyperalgesic effect of phytochemicals: anti-inflammatory and neuro-modulatory actions. Inflamm Res 2018; 67:633-654. [PMID: 29767332 DOI: 10.1007/s00011-018-1156-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Revised: 05/04/2018] [Accepted: 05/08/2018] [Indexed: 02/08/2023] Open
Abstract
INTRODUCTION Pain is an unpleasant sensation triggered by noxious stimulation. It is one of the most prevalent conditions, limiting productivity and diminishing quality of life. Non steroidal anti inflammatory drugs (NSAIDs) are widely used as pain relievers in present day practice as pain is mostly initiated due to inflammation. However, due to potentially serious side effects, long term use of these antihyperalgesic drugs raises concern. Therefore there is a demand to search novel medicines with least side effects. Herbal products have been used for centuries to reduce pain and inflammation, and phytochemicals are known to cause fewer side effects. However, identification of active phytochemicals of herbal medicines and clear understanding of the molecular mechanism of their action is needed for clinical acceptance. MATERIALS AND METHODS In this review, we have briefly discussed the cellular and molecular changes during hyperalgesia via inflammatory mediators and neuro-modulatory action involved therein. The review includes 54 recently reported phytochemicals with antihyperalgesic action, as per the literature available with PubMed, Google Scholar and Scopus. CONCLUSION Compounds of high interest as potential antihyperalgesic agents are: curcumin, resveratrol, capsaicin, quercetin, eugenol, naringenin and epigallocatechin gallate (EGCG). Current knowledge about molecular targets of pain and their regulation by these phytochemicals is elaborated and the scope of further research is discussed.
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Affiliation(s)
- Ajeet Kumar Singh
- Department of Zoology, Biochemistry and Molecular Biology Laboratory, Institute of Science, Banaras Hindu University, Varanasi, 221005, India.,Department of Zoology, CMP Degree College, University of Allahabad, Allahabad, 211002, India
| | - Sanjay Kumar
- Department of Zoology, Biochemistry and Molecular Biology Laboratory, Institute of Science, Banaras Hindu University, Varanasi, 221005, India
| | - Manjula Vinayak
- Department of Zoology, Biochemistry and Molecular Biology Laboratory, Institute of Science, Banaras Hindu University, Varanasi, 221005, India.
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Limonene: Aroma of innovation in health and disease. Chem Biol Interact 2018; 283:97-106. [PMID: 29427589 DOI: 10.1016/j.cbi.2018.02.007] [Citation(s) in RCA: 116] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2017] [Revised: 02/01/2018] [Accepted: 02/05/2018] [Indexed: 12/31/2022]
Abstract
Natural products obtained in dietary components may aid the prevention and treatment of a variety of diseases. Reports in the scientific literature have demonstrated that the consumption of terpenes is a successful alternative in the treatment of several diseases, triggering beneficial biological effects in clinical and preclinical studies. The monoterpene limonene is largely used in alimentary items, cleaning products, and it is one of the most frequent fragrances used in cosmetics formulation. The therapeutic effects of limonene have been extensively studied, proving anti-inflammatory, antioxidant, antinociceptive, anticancer, antidiabetic, antihyperalgesic, antiviral, and gastroprotective effects, among other beneficial effects in health. In this review, we collected, presented, and analyzed evidence from the scientific literature regarding the usage of limonene and its activities and underlying mechanisms involved in combating diseases. The highlighting of limonene applications could develop a useful targeting of innovative research in this field as well as the development of a limonene-based phytomedicine which could be used in a variety of conditions of health and disease.
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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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