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Liñán-Atero R, Aghababaei F, García SR, Hasiri Z, Ziogkas D, Moreno A, Hadidi M. Clove Essential Oil: Chemical Profile, Biological Activities, Encapsulation Strategies, and Food Applications. Antioxidants (Basel) 2024; 13:488. [PMID: 38671935 PMCID: PMC11047511 DOI: 10.3390/antiox13040488] [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: 03/18/2024] [Revised: 04/07/2024] [Accepted: 04/18/2024] [Indexed: 04/28/2024] Open
Abstract
Plants have proven to be important sources for discovering new compounds that are useful in the treatment of various diseases due to their phytoconstituents. Clove (Syzygium aromaticum L.), an aromatic plant widely cultivated around the world, has been traditionally used for food preservation and medicinal purposes. In particular, clove essential oil (CEO) has attracted attention for containing various bioactive compounds, such as phenolics (eugenol and eugenol acetate), terpenes (β-caryophyllene and α-humulene), and hydrocarbons. These constituents have found applications in cosmetics, food, and medicine industries due to their bioactivity. Pharmacologically, CEO has been tested against a variety of parasites and pathogenic microorganisms, demonstrating antibacterial and antifungal properties. Additionally, many studies have also demonstrated the analgesic, antioxidant, anticancer, antiseptic, and anti-inflammatory effects of this essential oil. However, CEO could degrade for different reasons, impacting its quality and bioactivity. To address this challenge, encapsulation is viewed as a promising strategy that could prolong the shelf life of CEO, improving its physicochemical stability and application in various areas. This review examines the phytochemical composition and biological activities of CEO and its constituents, as well as extraction methods to obtain it. Moreover, encapsulation strategies for CEO and numerous applications in different food fields are also highlighted.
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Affiliation(s)
- Rafael Liñán-Atero
- Department of Organic Chemistry, Faculty of Chemical Sciences and Technologies, University of Castilla-La Mancha, 13071 Ciudad Real, Spain; (R.L.-A.); (S.R.G.); (D.Z.)
| | | | - Samuel Rodríguez García
- Department of Organic Chemistry, Faculty of Chemical Sciences and Technologies, University of Castilla-La Mancha, 13071 Ciudad Real, Spain; (R.L.-A.); (S.R.G.); (D.Z.)
| | - Zahra Hasiri
- College of Veterinary Medicine, Islamic Azad University of Shahrekord, Shahrekord 88137-33395, Iran;
| | - Dimitrios Ziogkas
- Department of Organic Chemistry, Faculty of Chemical Sciences and Technologies, University of Castilla-La Mancha, 13071 Ciudad Real, Spain; (R.L.-A.); (S.R.G.); (D.Z.)
| | - Andres Moreno
- Department of Organic Chemistry, Faculty of Chemical Sciences and Technologies, University of Castilla-La Mancha, 13071 Ciudad Real, Spain; (R.L.-A.); (S.R.G.); (D.Z.)
| | - Milad Hadidi
- Department of Organic Chemistry, Faculty of Chemical Sciences and Technologies, University of Castilla-La Mancha, 13071 Ciudad Real, Spain; (R.L.-A.); (S.R.G.); (D.Z.)
- Department of Physiological Chemistry, Faculty of Chemistry, University of Vienna, 1090 Vienna, Austria
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Robinson JM, Breed AC, Camargo A, Redvers N, Breed MF. Biodiversity and human health: A scoping review and examples of underrepresented linkages. ENVIRONMENTAL RESEARCH 2024; 246:118115. [PMID: 38199470 DOI: 10.1016/j.envres.2024.118115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 12/09/2023] [Accepted: 01/04/2024] [Indexed: 01/12/2024]
Abstract
Mounting evidence supports the connections between exposure to environmental typologies(such as green and blue spaces)and human health. However, the mechanistic links that connect biodiversity (the variety of life) and human health, and the extent of supporting evidence remain less clear. Here, we undertook a scoping review to map the links between biodiversity and human health and summarise the levels of associated evidence using an established weight of evidence framework. Distinct from other reviews, we provide additional context regarding the environment-microbiome-health axis, evaluate the environmental buffering pathway (e.g., biodiversity impacts on air pollution), and provide examples of three under- or minimally-represented linkages. The examples are (1) biodiversity and Indigenous Peoples' health, (2) biodiversity and urban social equity, and (3) biodiversity and COVID-19. We observed a moderate level of evidence to support the environmental microbiota-human health pathway and a moderate-high level of evidence to support broader nature pathways (e.g., greenspace) to various health outcomes, from stress reduction to enhanced wellbeing and improved social cohesion. However, studies of broader nature pathways did not typically include specific biodiversity metrics, indicating clear research gaps. Further research is required to understand the connections and causative pathways between biodiversity (e.g., using metrics such as taxonomy, diversity/richness, structure, and function) and health outcomes. There are well-established frameworks to assess the effects of broad classifications of nature on human health. These can assist future research in linking biodiversity metrics to human health outcomes. Our examples of underrepresented linkages highlight the roles of biodiversity and its loss on urban lived experiences, infectious diseases, and Indigenous Peoples' sovereignty and livelihoods. More research and awareness of these socioecological interconnections are needed.
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Affiliation(s)
- Jake M Robinson
- College of Science and Engineering, Flinders University, Bedford Park, SA, Australia.
| | - Andrew C Breed
- Epidemiology and One Health Section, Department of Agriculture, Water, and the Environment, Canberra, ACT, Australia; School of Veterinary Science, University of Queensland, Gatton, Qld, Australia
| | | | - Nicole Redvers
- Schulich School of Medicine and Dentistry, Western University, London, ON, Canada
| | - Martin F Breed
- College of Science and Engineering, Flinders University, Bedford Park, SA, Australia
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Kwon S, Meng F, Tamam H, Gadalla HH, Wang J, Dong B, Hopf Jannasch AS, Ratliff TL, Yeo Y. Systemic Delivery of Paclitaxel by Find-Me Nanoparticles Activates Antitumor Immunity and Eliminates Tumors. ACS NANO 2024; 18:3681-3698. [PMID: 38227965 PMCID: PMC11025439 DOI: 10.1021/acsnano.3c11445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2024]
Abstract
Local delivery of immune-activating agents has shown promise in overcoming an immunosuppressive tumor microenvironment (TME) and stimulating antitumor immune responses in tumors. However, systemic therapy is ultimately needed to treat tumors that are not readily locatable or accessible. To enable systemic delivery of immune-activating agents, we employ poly(lactic-co-glycolide) (PLGA) nanoparticles (NPs) with a track record in systemic application. The surface of PLGA NPs is decorated with adenosine triphosphate (ATP), a damage-associated molecular pattern to recruit antigen-presenting cells (APCs). The ATP-conjugated PLGA NPs (NPpD-ATP) are loaded with paclitaxel (PTX), a chemotherapeutic agent inducing immunogenic cell death to generate tumor antigens in situ. We show that the NPpD-ATP retains ATP activity in hostile TME and provides a stable "find-me" signal to recruit APCs. Therefore, the PTX-loaded NPpD-ATP helps populate antitumor immune cells in TME and attenuate the growth of CT26 and B16F10 tumors better than a mixture of PTX-loaded NPpD and ATP. Combined with anti-PD-1 antibody, PTX-loaded NPpD-ATP achieves complete regression of CT26 tumors followed by antitumor immune memory. This study demonstrates the feasibility of systemic immunotherapy using a PLGA NP formulation that delivers ICD-inducing chemotherapy and an immunostimulatory signal.
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Affiliation(s)
- Soonbum Kwon
- Department of Industrial and Molecular Pharmaceutics, Purdue University, 575 Stadium Mall Drive, West Lafayette, IN 47907, USA
| | - Fanfei Meng
- Department of Industrial and Molecular Pharmaceutics, Purdue University, 575 Stadium Mall Drive, West Lafayette, IN 47907, USA
| | - Hassan Tamam
- Department of Industrial and Molecular Pharmaceutics, Purdue University, 575 Stadium Mall Drive, West Lafayette, IN 47907, USA
- Department of Industrial Pharmacy, Faculty of Pharmacy, Assiut University, Assiut 71526, Egypt
| | - Hytham H. Gadalla
- Department of Industrial and Molecular Pharmaceutics, Purdue University, 575 Stadium Mall Drive, West Lafayette, IN 47907, USA
- Department of Pharmaceutics, Faculty of Pharmacy, Assiut University, Assiut 71526, Egypt
| | - Jianping Wang
- Department of Industrial and Molecular Pharmaceutics, Purdue University, 575 Stadium Mall Drive, West Lafayette, IN 47907, USA
| | - Boyang Dong
- Department of Industrial and Molecular Pharmaceutics, Purdue University, 575 Stadium Mall Drive, West Lafayette, IN 47907, USA
| | - Amber S. Hopf Jannasch
- Metabolite Profiling Facility, Bindley Bioscience Center, Purdue University, 1203 Mitch Daniels Blvd., West Lafayette, IN 47907, USA
| | - Timothy L. Ratliff
- Purdue University Institute for Cancer Research, 201 South University Street, West Lafayette, IN, 47907, USA
- Department of Comparative Pathobiology, Purdue University, 625 Harrison Street, West Lafayette, IN, 47907, USA
| | - Yoon Yeo
- Department of Industrial and Molecular Pharmaceutics, Purdue University, 575 Stadium Mall Drive, West Lafayette, IN 47907, USA
- Purdue University Institute for Cancer Research, 201 South University Street, West Lafayette, IN, 47907, USA
- Weldon School of Biomedical Engineering, Purdue University, 206 S Martin Jischke Drive, West Lafayette, IN 47907, USA
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Grazul M, Kwiatkowski P, Hartman K, Kilanowicz A, Sienkiewicz M. How to Naturally Support the Immune System in Inflammation-Essential Oils as Immune Boosters. Biomedicines 2023; 11:2381. [PMID: 37760822 PMCID: PMC10525302 DOI: 10.3390/biomedicines11092381] [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: 06/20/2023] [Revised: 08/10/2023] [Accepted: 08/16/2023] [Indexed: 09/29/2023] Open
Abstract
Efficient functionality of the immune system is needed to fight against the development of infectious diseases, including, among others, serious recurrent chronic infections. Research has shown that many modern common diseases, such as inflammatory bowel diseases and cardiovascular diseases, e.g., thromboembolism, cancer, obesity, or depression, are connected with inflammatory processes. Therefore, new, good stimulators of the immune system's response are sought. They include synthetic compounds as well as biological preparations such as lipopolysaccharides, enzymes, bacterial metabolites, and secondary metabolites of plants, demonstrating a multidirectional effect. Essential oils are characterized by many invaluable activities, including antimicrobial, antioxidant, anti-inflammatory, and immunostimulating. Essential oils may stimulate the immune system via the utilization of their constituents, such as antibodies, cytokines, and dendritic cells. Some essential oils may stimulate the proliferation of immune-competent cells, including polymorphonuclear leukocytes, macrophages, dendritic cells, natural killer cells, and B and T lymphocytes. This review is focused on the ability of essential oils to affect the immune system. It is also possible that essential oil components positively interact with recommended anti-inflammatory and antimicrobial drugs. Thus, there is a need to explore possible synergies between essential oils and their active ingredients for medical use.
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Affiliation(s)
- Magdalena Grazul
- Department of Pharmaceutical Microbiology and Microbiological Diagnostic, Medical University of Lodz, Muszynskiego 1, 90-151 Lodz, Poland
| | - Paweł Kwiatkowski
- Department of Diagnostic Immunology, Pomeranian Medical University in Szczecin, al. Powstancow Wlkp. 72, 70-111 Szczecin, Poland
| | - Kacper Hartman
- Department of Diagnostic Immunology, Pomeranian Medical University in Szczecin, al. Powstancow Wlkp. 72, 70-111 Szczecin, Poland
| | - Anna Kilanowicz
- Department of Toxicology, Medical University of Lodz, Muszynskiego 1, 90-151 Lodz, Poland
| | - Monika Sienkiewicz
- Department of Pharmaceutical Microbiology and Microbiological Diagnostic, Medical University of Lodz, Muszynskiego 1, 90-151 Lodz, Poland
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Li L, Chen X, Zhang K, Tian G, Ding X, Bai S, Zeng Q. Effects of Thymol and Carvacrol Eutectic on Growth Performance, Serum Biochemical Parameters, and Intestinal Health in Broiler Chickens. Animals (Basel) 2023; 13:2242. [PMID: 37444040 DOI: 10.3390/ani13132242] [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: 05/05/2023] [Revised: 06/10/2023] [Accepted: 06/27/2023] [Indexed: 07/15/2023] Open
Abstract
This study aimed to evaluate the effect of diets supplementing with various levels of thymol and carvacrol eutectic (TCE) on growth performance, serum biochemical parameters, intestinal morphology, and the expression of intestinal nutrient absorption, barrier function- and inflammation-related genes in broiler chickens. A total of 640 one-day-old Arbor Acres male broilers with similar body weights were randomly divided into four groups (8 replicates/group, 20 broilers/replicate). Birds in the four experimental groups were fed a basal diet with TCE at 0, 30, 60, or 120 mg/kg. The results showed that the growth performance of birds during 22-42 d or 1-42 d, serum IgE and IgG content at 21 d of age, jejunal and ileal morphology, ileal MUC2, OCLN, and IL-10 mRNA expression were significantly increased compared with the control group (p < 0.05), and the ileal IL-6 mRNA expression quadratically decreased (p < 0.05) with increasing dietary TCE supplemented dosage, and its expression showed a linear downward trend (0.05 < p < 0.1). Meanwhile, compared with the other three groups, birds fed diets with 30 mg/kg TCE presented better (p < 0.05) growth performance, intestinal morphology, and function. These results indicated that the optimal supplementation amount of TCE in the broiler diets was 30 mg/kg.
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Affiliation(s)
- Lixuan Li
- Key Laboratory of Animal Disease-Resistance Nutrition, Ministry of Education, Ministry of Agriculture and Rural Affairs, Key Laboratory of Sichuan Province, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, China
| | - Xiaochun Chen
- Institute of Animal Science, Chengdu Agricultural College, Chengdu 611130, China
| | - Keying Zhang
- Key Laboratory of Animal Disease-Resistance Nutrition, Ministry of Education, Ministry of Agriculture and Rural Affairs, Key Laboratory of Sichuan Province, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, China
| | - Gang Tian
- Key Laboratory of Animal Disease-Resistance Nutrition, Ministry of Education, Ministry of Agriculture and Rural Affairs, Key Laboratory of Sichuan Province, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, China
| | - Xuemei Ding
- Key Laboratory of Animal Disease-Resistance Nutrition, Ministry of Education, Ministry of Agriculture and Rural Affairs, Key Laboratory of Sichuan Province, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, China
| | - Shiping Bai
- Key Laboratory of Animal Disease-Resistance Nutrition, Ministry of Education, Ministry of Agriculture and Rural Affairs, Key Laboratory of Sichuan Province, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, China
| | - Qiufeng Zeng
- Key Laboratory of Animal Disease-Resistance Nutrition, Ministry of Education, Ministry of Agriculture and Rural Affairs, Key Laboratory of Sichuan Province, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, China
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Mohamed MA, El-Mleeh AA, Hamad RT, Abu-Alya IS, El-Hewaity MH, Elbestawy AR, Elbagory AM, Sayed-Ahmed AS, Abd Eldaim MA, Elshabrawy OI. Immunostimulant potential of Moringa Oleifera leaves alcoholic extract versus Oregano Essential Oil (OEO) against cyclophosphamide-induced immunosuppression in broilers chicks. Trop Anim Health Prod 2023; 55:209. [PMID: 37202581 DOI: 10.1007/s11250-023-03620-5] [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: 11/18/2022] [Accepted: 05/09/2023] [Indexed: 05/20/2023]
Abstract
The current study was conducted to evaluate the immunoenhancement effect of Moringa oleifera leaves alcoholic extract (MOLE) versus Oregano essential oil (OEO) against cyclophosphamide induced immunosuppression in broilers chicks. A total of a three hundred one-day-old chicks were assigned randomly into three main dietary groups, control, MOLE, and OEO for 14 days. After 14 days the three main experimental groups were subdivided into six groups, control, cyclophosphamide, MOLE, MOLE and Cyclophosphamide, OEO, and OEO and cyclophosphamide. Each group of these six groups was subdivided into three subgroups. Supplementation of broiler chicks with MOLE and OEO for 14 days significantly increased body weight compared to the control group. However, injection of broiler chicks with cyclophosphamide significantly induced body weight loss, impaired immunological response represented by decreasing total leukocytic count, differential leukocytic count, phagocytic activity, phagocytic index, and hemagglutinin inhibition titer for New Castle disease virus, lymphoid organs depletion, and increased the mortality rate. In contrast, supplementation of cyclophosphamide treated chicks with MOLE and OEO significantly reduced cyclophosphamide induced body weight loss and impaired immunological responses, as it showed significant increase in body weight, total leukocytic count, differential leukocytic count, phagocytic activity, phagocytic index, and hemagglutinin inhibition titer for New Castle disease virus, lymphoid organs proliferation, and reduced the mortality rate. This study indicated that MOLE and OEO supplementation ameliorated cyclophosphamide induced body weight loss and impaired immunological responses.
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Affiliation(s)
- Mostafa Abdelgaber Mohamed
- Department of Pathology, Faculty of Veterinary Medicine, Menoufia University, Shebeen Elkom, 32511, Egypt
| | - Amany Abdelbaky El-Mleeh
- Department of Pharmacology, Faculty of Veterinary Medicine, Menoufia University, Shebeen Elkom, 32511, Egypt
| | - Rania Talat Hamad
- Department of Pathology, Faculty of Veterinary Medicine, Menoufia University, Shebeen Elkom, 32511, Egypt
| | - Ibrahim Said Abu-Alya
- Department of Physiology, Faculty of Veterinary Medicine, University of Sadat City, Sadat City, 23897, Egypt
| | - Mohamed Hamdy El-Hewaity
- Department of Pharmacology, Faculty of Veterinary Medicine, Menoufia University, Shebeen Elkom, 32511, Egypt
| | - Ahmed Ragab Elbestawy
- Department of Poultry and Fish Diseases, Faculty of Veterinary Medicine, Damanhour University, El Beheira, 22511, Egypt
| | | | - Ahmed Saber Sayed-Ahmed
- Department of Anatomy and Embryology Faculty of Veterinary Medicine, Menoufia University, Shebeen Elkom, 32511, Egypt
| | - Mabrouk Attia Abd Eldaim
- Department of Biochemistry and Chemistry of Nutrition, Faculty of Veterinary Medicine, Menoufia University, Shebeen Elkom, 32511, Egypt.
| | - Omnia Ibrahim Elshabrawy
- Department of Biochemistry and Chemistry of Nutrition, Faculty of Veterinary Medicine, Menoufia University, Shebeen Elkom, 32511, Egypt
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Elghandour MMMY, Maggiolino A, García EIC, Sánchez-Aparicio P, De Palo P, Ponce-Covarrubias JL, Pliego AB, Salem AZM. Effects of Microencapsulated Essential Oils on Equine Health: Nutrition, Metabolism and Methane Emission. Life (Basel) 2023; 13:life13020455. [PMID: 36836812 PMCID: PMC9963397 DOI: 10.3390/life13020455] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Revised: 01/29/2023] [Accepted: 02/03/2023] [Indexed: 02/09/2023] Open
Abstract
This review examines the available data regarding the positive effects of microencapsulated essential oils (EOs) on the nutrition, metabolism, and possibly the methane emission of horses. A literature review was conducted on the effect of microencapsulated (EOs) on the health of horses. The information comprises articles published in recent years in indexed journals. The results indicate that mixtures of microencapsulated EOs may be beneficial to equine health due to their antimicrobial and antioxidant activity, as well as their effects on enteric methane production, nutrient absorption, and immune system enhancement. Moreover, encapsulation stabilizes substances such as EOs in small doses, primarily by combining them with other ingredients.
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Affiliation(s)
- Mona M. M. Y. Elghandour
- Facultad de Medicina Veterinaria y Zootecnia, Universidad Autónoma del Estado de México, Toluca 50000, Estado de México, Mexico
| | - Aristide Maggiolino
- Department of Veterinary Medicine, University of Bari Aldo Moro, 70010 Valenzano, Italy
- Correspondence: (A.M.); (A.Z.M.S.)
| | | | - Pedro Sánchez-Aparicio
- Facultad de Medicina Veterinaria y Zootecnia, Universidad Autónoma del Estado de México, Toluca 50000, Estado de México, Mexico
| | - Pasquale De Palo
- Department of Veterinary Medicine, University of Bari Aldo Moro, 70010 Valenzano, Italy
| | - José Luis Ponce-Covarrubias
- Escuela Superior de Medicina Veterinaria y Zootecnia No. 3, Universidad Autónoma de Guerrero (UAGro), Técpan de Galeana 40900, Guerrero, Mexico
| | - Alberto Barbabosa Pliego
- Facultad de Medicina Veterinaria y Zootecnia, Universidad Autónoma del Estado de México, Toluca 50000, Estado de México, Mexico
| | - Abdelfattah Z. M. Salem
- Facultad de Medicina Veterinaria y Zootecnia, Universidad Autónoma del Estado de México, Toluca 50000, Estado de México, Mexico
- Correspondence: (A.M.); (A.Z.M.S.)
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Matera R, Lucchi E, Valgimigli L. Plant Essential Oils as Healthy Functional Ingredients of Nutraceuticals and Diet Supplements: A Review. Molecules 2023; 28:molecules28020901. [PMID: 36677959 PMCID: PMC9862182 DOI: 10.3390/molecules28020901] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Revised: 01/09/2023] [Accepted: 01/12/2023] [Indexed: 01/18/2023] Open
Abstract
Essential oils (EOs) are mixtures of volatile molecules endowed with health-promoting biological activities that go beyond their role as aromas and natural preservatives and can be exploited to develop functional foods and diet supplements. Their composition is briefly addressed along with regulatory aspects. The potential health benefit of human diet supplementation with EOs is outlined through a review of the recent literature on available clinical trials and preclinical research concerning EOs activity towards: (1) irritable bowel syndrome; (2) inflammatory bowel disease; (3) regulation of microbiota; (4) gastroprotection; (5) hepatoprotection; (6) protection of the urinary tract and diuresis; (7) management of metabolic disorders including hyperglycemia and hyperlipidemia; (8) anti-inflammatory and pain control; (9) immunomodulation and protection from influenza; and (10) neuroprotection and modulation of mood and cognitive performance. The emerging potential in such activities of selected EOs is given focus, particularly green and black cumin, bergamot, orange, myrtle, peppermint, sage, eucalyptus, lavender, thyme, lemon balm, ginger, and garlic.
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Affiliation(s)
- Riccardo Matera
- BeC s.r.l., Research & Development, Via C. Monteverdi 49, 47122 Forlì, Italy
| | - Elena Lucchi
- BeC s.r.l., Research & Development, Via C. Monteverdi 49, 47122 Forlì, Italy
| | - Luca Valgimigli
- Department of Chemistry “Ciamician”, University of Bologna, Via S. Giacomo 11, 40126 Bologna, Italy
- Correspondence: ; Tel.: +30-051-2095683
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Immune Defences: A View from the Side of the Essential Oils. MOLECULES (BASEL, SWITZERLAND) 2023; 28:molecules28010435. [PMID: 36615625 PMCID: PMC9824899 DOI: 10.3390/molecules28010435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 12/27/2022] [Accepted: 12/30/2022] [Indexed: 01/05/2023]
Abstract
The use of essential oils is increasingly being investigated among new therapeutic approaches based on medicinal plants and their extracts. With the wide use of synthetic and semi-synthetic antimicrobial drugs, the spread of drug-resistant clinical isolates has increased, and research is directed towards natural products, such as essential oils, as useful antimicrobial resources. In the context of a prospective infection, we compared the impact of essential oils and common antimicrobial agents on the microbicidal activity of human phagocytes. Here, we present the results of our decades-long investigation into the effectiveness of thyme red oil (26.52% thymol chemotype), tea tree oil (TTO), and Mentha of Pancalieri [(Mentha x piperita (Huds) var. officinalis (Sole), form rubescens (Camus) (Lamiaceae)] essential oils on human polymorphonuclear leukocytes (PMNs) capacity to kill clinical strains of Candida albicans and C. krusei when compared to three antifungal drugs used to treat candidiasis (fluconazole, anidulafungin, and caspofungin) These essential oils demonstrate antifungal drug-like and/or superior efficacy in enhancing intracellular killing by PMNs, even at subinhibitory concentrations. Our results are compared with data in the literature on essential oils and immune system interactions. This comparison would aid in identifying therapeutic solutions to the increasingly prevalent antibiotic resistance as well as filling in any remaining knowledge gaps on the bioactivity of essential oils.
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Essential Oils against Sarcoptes scabiei. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27249067. [PMID: 36558200 PMCID: PMC9788335 DOI: 10.3390/molecules27249067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Revised: 12/14/2022] [Accepted: 12/14/2022] [Indexed: 12/23/2022]
Abstract
Herbal remedia are widely employed in folk medicine, and have been more and more often studied and considered in the treatment of several infections. Sarcoptic mange (scabies, when referring to human patients) is a highly contagious skin disease caused by Sarcoptes scabiei (sarcoptiformes, Sarcoptinae), an astigmatid mite which burrows into the epidermis, actively penetrating the stratum corneum. This parasitosis negatively affects livestock productions and represents a constraint on animal and human health. The treatment relies on permethrine and ivermectine but, since these molecules do not have ovicidal action, more than a single dose should be administered. Toxicity, the possible onset of parasite resistance, the presence of residues in meat and other animal products and environmental contamination are the major constraints. These shortcomings could be reduced by the use of plant extracts that have been in vitro or in vivo checked against these mites, sometimes with promising results. The aim of the present study was to review the literature dealing with the treatment of both scabies and sarcoptic mange by plant-derived agents, notably essential oils.
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Brennan SE, McDonald S, Murano M, McKenzie JE. Effectiveness of aromatherapy for prevention or treatment of disease, medical or preclinical conditions, and injury: protocol for a systematic review and meta-analysis. Syst Rev 2022; 11:148. [PMID: 35883155 PMCID: PMC9317467 DOI: 10.1186/s13643-022-02015-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Accepted: 07/01/2022] [Indexed: 11/29/2022] Open
Abstract
BACKGROUND Aromatherapy - the therapeutic use of essential oils from plants (flowers, herbs or trees) to treat ill health and promote physical, emotional and spiritual well-being - is one of the most widely used natural therapies reported by consumers in Western countries. The Australian Government Department of Health (via the National Health and Medical Research Council) has commissioned a suite of independent evidence evaluations to inform the 2019-20 Review of the Australian Government Rebate on Private Health Insurance for Natural Therapies. This protocol is for one of the evaluations: a systematic review that aims to examine the effectiveness of aromatherapy in preventing and/or treating injury, disease, medical conditions or preclinical conditions. METHODS Eligibility criteria: randomised trials comparing (1) aromatherapy (delivered by any mode) to no aromatherapy (inactive controls), (2) aromatherapy (delivered by massage) to massage alone or (3) aromatherapy to 'gold standard' treatments. POPULATIONS any condition, pre-condition, injury or risk factor (excluding healthy participants without clearly identified risk factors). OUTCOMES any for which aromatherapy is indicated. Searches: Cochrane Central Register of Controlled Trials (CENTRAL), with a supplementary search of PubMed (covering a 6-month lag period for processing records in CENTRAL and records not indexed in MEDLINE), AMED and Emcare. No date, language or geographic limitations will be applied. DATA AND ANALYSIS screening by two authors, independently (records indexed by Aromatherapy or Oils volatile or aromatherapy in title; all full text) or one author (remaining records) with second author until 80% agreement. Data extraction and risk of bias assessment (ROB 2.0) will be piloted by three authors, then completed by a single author and checked by a second. Comparisons will be based on broad outcome categories (e.g. pain, emotional functioning, sleep disruption) stratified by population subgroups (e.g. chronic pain conditions, cancer, dementia) as defined in the analytic framework for the review. Meta-analysis or other synthesis methods will be used to combine results across studies. GRADE methods will be used to assess certainty of evidence and summarise findings. DISCUSSION Results of the systematic review will provide a comprehensive and up-to-date synthesis of evidence about the effectiveness of aromatherapy. SYSTEMATIC REVIEW REGISTRATION PROSPERO CRD42021268244.
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Affiliation(s)
- Sue E Brennan
- School of Public Health and Preventive Medicine, Monash University, 553 St Kilda Road, Melbourne, VIC, 3004, Australia.
| | - Steve McDonald
- School of Public Health and Preventive Medicine, Monash University, 553 St Kilda Road, Melbourne, VIC, 3004, Australia
| | - Melissa Murano
- School of Public Health and Preventive Medicine, Monash University, 553 St Kilda Road, Melbourne, VIC, 3004, Australia
| | - Joanne E McKenzie
- School of Public Health and Preventive Medicine, Monash University, 553 St Kilda Road, Melbourne, VIC, 3004, Australia
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Krol A, Kokotkiewicz A, Luczkiewicz M. White Sage (Salvia apiana)-a Ritual and Medicinal Plant of the Chaparral: Plant Characteristics in Comparison with Other Salvia Species. PLANTA MEDICA 2022; 88:604-627. [PMID: 33890254 DOI: 10.1055/a-1453-0964] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Salvia apiana, commonly known as white sage, is an aromatic evergreen subshrub of the chaparral, commonly found in coastal plains in California and Baja California. It has been traditionally used by the Chumash people as a ritual and medicinal plant and used as a calmative, a diuretic, and a remedy for the common cold. However, until recently, relatively little has been known about the composition and biological activity of white sage. Phytochemical studies on S. apiana revealed the presence of substantial amounts of essential oil, accompanied by a variety of triterpenes, C23 terpenoids, diterpenes, and flavonoids. Extracts of the plant have been shown to exhibit antioxidative, antimicrobial, and cytotoxic effects. The influence of white sage constituents on the nervous system, including GABA, opioid, and cannabinoid receptors, has also been documented. The review aimed to compile information on the taxonomy, botany, chemical composition, and biological activities of S. apiana. White sage was compared with other representatives of the genus in terms of chemical composition. The differences and similarities between S. apiana and other sage species were noted and discussed in the context of their therapeutic applications. Reports on ethnomedicinal uses of white sage were confronted with reports on chemistry, bioactivity, and bioavailability of S. apiana constituents. Finally, a critical assessment of the available data was made and perspectives for the use of white sage preparations in modern phytomedicine were discussed.
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Affiliation(s)
- Agata Krol
- Department of Pharmacognosy, Faculty of Pharmacy, Medical University of Gdańsk, Gdańsk, Poland
| | - Adam Kokotkiewicz
- Department of Pharmacognosy, Faculty of Pharmacy, Medical University of Gdańsk, Gdańsk, Poland
| | - Maria Luczkiewicz
- Department of Pharmacognosy, Faculty of Pharmacy, Medical University of Gdańsk, Gdańsk, Poland
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Engineering a curcumol-loaded porphyrinic metal-organic framework for enhanced cancer photodynamic therapy. Colloids Surf B Biointerfaces 2022; 214:112456. [PMID: 35290822 DOI: 10.1016/j.colsurfb.2022.112456] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2021] [Revised: 02/19/2022] [Accepted: 03/08/2022] [Indexed: 11/23/2022]
Abstract
Photodynamic therapy (PDT), a non-invasive and safe treatment, is a clinical promising alternative strategy for certain cancers. Although PDT can trigger tumor specific immunity, the immunosuppressive tumor microenvironment severely limits the efficacy of photodynamic immunotherapy. Curcumol (CUR), extracted from essential oils of traditional Chinese medicine, has potential immune activation effect for cancer immunotherapy. Considering the fat solubility and volatility hinder the in vivo application of essential oils, a metal-organic framework system (Named as CuTPyP/F68) composed of porphyrin and Cu2+ was constructed for delivering CUR (Named as CUR@CuTPyP/F68). The in vitro assays proved that CUR@CuTPyP/F68 could directly kill tumor cells by the released CUR and singlet oxygen (1O2) generated under laser irradiation (marked as '+'). Moreover, CUR@CuTPyP/F68 had superior tumor targeting and retention capabilities, which effectively inhibited tumor growth in vivo with only a single dose. Finally, the mechanism of CUR-mediated enhanced PDT had been firstly proposed: (1) CUR@CuTPyP/F68(+)-treated group exhibited more CD4+ and CD8+ T cells infiltration in tumor tissue; (2) CUR@CuTPyP/F68(+)-treated group exhibited high level of IFN-γ, IL-12 and TNF-α in blood. Overall, we believe the PDT-immunotherapy strategy has great potential for the treatment of breast cancer, and this work will provide a reference for the clinical application of essential oils in cancer immunotherapy.
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Man A, Mare AD, Mares M, Ruta F, Pribac M, Maier AC, Cighir A, Ciurea CN. Antifungal and anti-virulence activity of six essential oils against important Candida species - a preliminary study. Future Microbiol 2022; 17:737-753. [PMID: 35531749 DOI: 10.2217/fmb-2021-0296] [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: 11/21/2022] Open
Abstract
Opportunistic infections with Candida species are becoming more problematic, considering their increasing virulence and resistance to antifungal drugs. AIM To assess the antifungal and anti-virulence activity of basil, cinnamon, clove, melaleuca, oregano and thyme essential oils (EOs) on five Candida species (C. albicans, C. auris, C. krusei C. parapsilosis and C. guillermondii). METHODS The MIC, growth rate, antibiofilm activity, regulation of gene expression (ALS3, SAP2, HSP70) and germ-tube formation were evaluated by specific methods. RESULTS Most EOs inhibited Candida species growth and reduced the expression of some virulence factors. Cinnamon and clove EO showed the most significant inhibitory effects. CONCLUSIONS The tested EOs are promising agents for facilitating the management of some Candida infections.
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Affiliation(s)
- Adrian Man
- Department of Microbiology, George Emil Palade University of Medicine, Pharmacy, Science, and Technology of Târgu Mureș, Târgu Mureș, 540142, Romania
| | - Anca-Delia Mare
- Department of Microbiology, George Emil Palade University of Medicine, Pharmacy, Science, and Technology of Târgu Mureș, Târgu Mureș, 540142, Romania
| | - Mihai Mares
- Laboratory of Antimicrobial Chemotherapy, Ion Ionescu de la Brad University of Life Sciences of Iași, Iași, 700490, Romania
| | - Florina Ruta
- Department of Community Nutrition & Food Safety, George Emil Palade University of Medicine, Pharmacy, Science, & Technology of Târgu Mureș, Târgu Mureș, 540142, Romania
| | - Mirela Pribac
- Nutrition & Holistic Health, Holomed, Târgu Mureș, 540272, Romania
| | - Adrian-Cornel Maier
- Department of Urology, "Dunarea de Jos" University of Galați, Galați, 800008, Romania
| | - Anca Cighir
- Department of Microbiology, George Emil Palade University of Medicine, Pharmacy, Science, and Technology of Târgu Mureș, Târgu Mureș, 540142, Romania.,Doctoral School, George Emil Palade University of Medicine, Pharmacy, Science, & Technology of Târgu Mureș, Târgu Mureș, 540142, Romania
| | - Cristina-Nicoleta Ciurea
- Department of Microbiology, George Emil Palade University of Medicine, Pharmacy, Science, and Technology of Târgu Mureș, Târgu Mureș, 540142, Romania.,Doctoral School, George Emil Palade University of Medicine, Pharmacy, Science, & Technology of Târgu Mureș, Târgu Mureș, 540142, Romania
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Khayal EES, Alabiad MA, Elkholy MR, Shalaby AM, Nosery Y, El-Sheikh AA. The immune modulatory role of marjoram extract on imidacloprid induced toxic effects in thymus and spleen of adult rats. Toxicology 2022; 471:153174. [PMID: 35398170 DOI: 10.1016/j.tox.2022.153174] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 03/23/2022] [Accepted: 03/30/2022] [Indexed: 01/24/2023]
Abstract
Imidacloprid (IMID), one of environmental persistent neonicotinoid insecticides, has been used a long time ago and categorized from insecticide induced moderate toxicity by World Health Organization (WHO). Marjoram, is one of the most worldwide used herbs in Egypt due to its antioxidant, anti-inflammatory, anti-genotoxic, anti-mutagenic, anticoagulant, and beneficial effects. This study aimed to evaluate the protective role of marjoram extract on the immunotoxic response and oxidative stress induced by IMID in the immune lymphoid organs (thymus and spleen) of rats. Fifty adult male albino rats were divided randomly into five groups; negative and positive (distilled water) control, marjoram extract (200 mg/kg/day), IMID (22.5 mg/kg/day), marjoram extract + IMID (200 mg/kg +22.5 mg/kg) orally for 8 weeks. Marjoram pretreatment reversed reduced animals body, thymus and spleen weights attributed to IMID. It amended the significantly elevated total leukocytes, neutrophils percentage, increased immunoglobulin G and the significantly reduction of lymphocytes percentage, phagocytic activity, phagocytic index and lysozyme activity induced by IMID. Moreover, marjoram administration significantly reduced thymic and splenic gene expression of interleukin-1β, interleukin-6, tumor necrosis factor-α and increased interleukin-10, in addition, it decreased thymic and splenic contents of malondialdehyde and restored the reduced antioxidant enzymes' activities following IMID exposure. Marjoram ameliorated IMID induced histopathological alterations in thymus and spleen and adjusted IMID immunomodulatory effects by increased the downregulation of CD4 and CD8 immune reactive cell expression. Conclusion, Marjoram has a protective role to reverse IMID immune toxic effects in thymus and spleen tissues of rats by its antioxidant, anti-inflammatory and immunomodulatory defense mechanisms.
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Affiliation(s)
- Eman El-Sayed Khayal
- Forensic Medicine and Clinical Toxicology Department, Faculty of Medicine, Zagazig University, Zagazig 44519, Egypt.
| | - Mohamed Ali Alabiad
- Pathology Department, Faculty of Medicine, Zagazig University, Zagazig 44519, Egypt.
| | - Mahmoud Ramadan Elkholy
- Human Anatomy and Embryology Department, Faculty of Medicine, Zagazig University, Zagazig 44519, Egypt.
| | - Amany Mohamed Shalaby
- Histology and Cell Biology Department, Faculty of Medicine, Tanta University, Tanta 31527, Egypt.
| | - Yousef Nosery
- Pathology Department, Faculty of Medicine, Zagazig University, Zagazig 44519, Egypt.
| | - Arwa A El-Sheikh
- Forensic Medicine and Clinical Toxicology Department, Faculty of Medicine, Zagazig University, Zagazig 44519, Egypt.
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Exploring the Roles of Dietary Herbal Essential Oils in Aquaculture: A Review. Animals (Basel) 2022; 12:ani12070823. [PMID: 35405814 PMCID: PMC8996993 DOI: 10.3390/ani12070823] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Revised: 01/05/2022] [Accepted: 01/28/2022] [Indexed: 02/01/2023] Open
Abstract
The aquaculture sector is one of the main activities contributing to food security for humanity around the globe. However, aquatic animals are susceptible to several farming stressors involved in deteriorated growth performance, reduced productivity, and eventually high mortality rates. In some countries still, antibiotics and chemotherapies are comprehensively applied to control biotic stressors. Aside from the apparent benefits, the continuous usage of antibiotics develops bacterial resistance, deteriorates bacterial populations, and accumulates these compounds in the aquatic environment. Alternatively, environmentally friendly additives were used to avoid the direct and indirect impacts on the aquatic ecosystem and human health. In aquaculture, medicinal herbs and extracts are extensively used and approved for their growth-promoting, anti-inflammatory, and antioxidative properties. Herbal essential oils contain many bioactive components with powerful antibacterial, antioxidative, and immunostimulant potentials, suggesting their application for aquatic animals. Essential oils can be provided via diet and can benefit aquatic animals by improving their well-being and health status. The use of essential oils in aquafeed has been studied in a variety of aquatic animals to determine their beneficial roles and optimum doses. The outputs illustrated that herbal essential oils are exciting alternatives to antibiotics with prominent growth promotion, antioxidative, and immunostimulant roles. Herein, we reviewed the beneficial roles of essential oils in aquaculture. This review also aims to describe trends in herbal essential oils use, mainly in commercial fish species, and to analyze different factors that affect essential oils’ efficacy on the growth performance, antioxidative, and immune responses of finfish species.
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Examination of VOC Concentration of Aroma Essential Oils and Their Major VOCs Diffused in Room Air. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19052904. [PMID: 35270596 PMCID: PMC8910502 DOI: 10.3390/ijerph19052904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/23/2022] [Revised: 02/19/2022] [Accepted: 02/20/2022] [Indexed: 11/17/2022]
Abstract
This study analyzed temporal variation of the composition of volatile organic compounds (VOCs) at different diffusion time of gaseous phase of aroma compounds of four essential oils, lavender, tea tree, eucalyptus, and melissa. GC/MS methodology with the trace gas sampling by a thermal desorption tube is used to quantitatively determine the concentration of the corresponding 14 kinds of major and original VOCs in four essential oils. This study revealed for the first time that the concentration level of gaseous phase composition is varied, with a diffusion time from that of the liquid phase at equilibrium with it and the VOCs in the essential oils are classified into two groups, depending on whether their concentration with the time. It is verified that the total concentration of VOCs of these essential oils in the room air diffused by the ultrasonic diffuser is as low as 0.6 ppb and decreased soon below 0.1 ppb.
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Figueiredo YG, Corrêa EA, de Oliveira Junior AH, Mazzinghy ACDC, Mendonça HDOP, Lobo YJG, García YM, Gouvêia MADS, de Paula ACCFF, Augusti R, Reina LDCB, da Silveira CH, de Lima LHF, Melo JOF. Profile of Myracrodruon urundeuva Volatile Compounds Ease of Extraction and Biodegradability and In Silico Evaluation of Their Interactions with COX-1 and iNOS. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27051633. [PMID: 35268733 PMCID: PMC8911712 DOI: 10.3390/molecules27051633] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 02/21/2022] [Accepted: 02/22/2022] [Indexed: 12/11/2022]
Abstract
Myracrodruon urundeuva Fr. Allem. (Anacardiaceae) is a tree popularly known as the "aroeira-do-sertão", native to the caatinga and cerrado biomes, with a natural dispersion ranging from the Northeast, Midwest, to Southeast Brazil. Its wood is highly valued and overexploited, due to its characteristics such as durability and resistance to decaying. The diversity of chemical constituents in aroeira seed has shown biological properties against microorganisms and helminths. As such, this work aimed to identify the profile of volatile compounds present in aroeira seeds. Headspace solid phase microextraction was employed (HS-SPME) using semi-polar polydimethylsiloxane-divinylbenzene fiber (PDMS/DVB) for the extraction of VOCs. 22 volatile organic compounds were identified: nine monoterpenes and eight sesquiterpenes, in addition to six compounds belonging to different chemical classes such as fatty acids, terpenoids, salicylates and others. Those that stood out were p-mentha-1,4, 4(8)-diene, 3-carene (found in all samples), caryophyllene and cis-geranylacetone. A virtual docking analysis suggested that around 65% of the VOCs molar content from the aroeiras seeds present moderate a strong ability to bind to cyclooxygenase I (COX-I) active site, oxide nitric synthase (iNOS) active site (iNOSas) or to iNOS cofactor site (iNOScs), corroborating an anti-inflamatory potential. A pharmacophoric descriptor analysis allowed to infer the more determinant characteristics of these compounds' conferring affinity to each site. Taken together, our results illustrate the high applicability for the integrated use of SPME, in silico virtual screening and chemoinformatics tools at the profiling of the biotechnological and pharmaceutical potential of natural sources.
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Affiliation(s)
- Yuri G. Figueiredo
- Departamento de Ciências Exatas e Biológicas, Campus Sete Lagoas, Universidade Federal de São João Del-Rei, Sete Lagoas 35700-000, MG, Brazil; (Y.G.F.); (A.H.d.O.J.); (A.C.d.C.M.); (H.d.O.P.M.); (Y.M.G.); (L.H.F.d.L.)
| | - Eduardo A. Corrêa
- Campus Dona Lindu, Universidade Federal de São João Del-Rei, Divinópolis 35501-296, MG, Brazil; (E.A.C.); (Y.J.G.L.)
- Empresa de Pesquisa Agropecuária de Minas Gerais, Unidade EPAMIG ITAC, Pitangui 35650-000, MG, Brazil
| | - Afonso H. de Oliveira Junior
- Departamento de Ciências Exatas e Biológicas, Campus Sete Lagoas, Universidade Federal de São João Del-Rei, Sete Lagoas 35700-000, MG, Brazil; (Y.G.F.); (A.H.d.O.J.); (A.C.d.C.M.); (H.d.O.P.M.); (Y.M.G.); (L.H.F.d.L.)
| | - Ana C. d. C. Mazzinghy
- Departamento de Ciências Exatas e Biológicas, Campus Sete Lagoas, Universidade Federal de São João Del-Rei, Sete Lagoas 35700-000, MG, Brazil; (Y.G.F.); (A.H.d.O.J.); (A.C.d.C.M.); (H.d.O.P.M.); (Y.M.G.); (L.H.F.d.L.)
| | - Henrique d. O. P. Mendonça
- Departamento de Ciências Exatas e Biológicas, Campus Sete Lagoas, Universidade Federal de São João Del-Rei, Sete Lagoas 35700-000, MG, Brazil; (Y.G.F.); (A.H.d.O.J.); (A.C.d.C.M.); (H.d.O.P.M.); (Y.M.G.); (L.H.F.d.L.)
| | - Yan J. G. Lobo
- Campus Dona Lindu, Universidade Federal de São João Del-Rei, Divinópolis 35501-296, MG, Brazil; (E.A.C.); (Y.J.G.L.)
| | - Yesenia M. García
- Departamento de Ciências Exatas e Biológicas, Campus Sete Lagoas, Universidade Federal de São João Del-Rei, Sete Lagoas 35700-000, MG, Brazil; (Y.G.F.); (A.H.d.O.J.); (A.C.d.C.M.); (H.d.O.P.M.); (Y.M.G.); (L.H.F.d.L.)
| | - Marcelo A. d. S. Gouvêia
- Departamento de Ciências Agrárias, Instituto Federal de Educação, Ciência e Tecnologia de Minas Gerais, Campus Bambuí, Bambuí 38900-000, MG, Brazil; (M.A.d.S.G.); (A.C.C.F.F.d.P.)
| | - Ana C. C. F. F. de Paula
- Departamento de Ciências Agrárias, Instituto Federal de Educação, Ciência e Tecnologia de Minas Gerais, Campus Bambuí, Bambuí 38900-000, MG, Brazil; (M.A.d.S.G.); (A.C.C.F.F.d.P.)
| | - Rodinei Augusti
- Departamento de Química, Campus Pampulha, Universidade Federal de Minas Gerais, Belo Horizonte 35702-031, MG, Brazil;
| | - Luisa D. C. B. Reina
- Instituto de Ciências Naturais, Humanas e Sociais, Universidade Federal de Minas Gerais, Belo Horizonte 35702-031, MG, Brazil;
| | - Carlos H. da Silveira
- Instituto de Ciências Tecnológicas, Campus Itabira, Universidade Federal de Itajubá, Itabira 35903-087, MG, Brazil;
| | - Leonardo H. F. de Lima
- Departamento de Ciências Exatas e Biológicas, Campus Sete Lagoas, Universidade Federal de São João Del-Rei, Sete Lagoas 35700-000, MG, Brazil; (Y.G.F.); (A.H.d.O.J.); (A.C.d.C.M.); (H.d.O.P.M.); (Y.M.G.); (L.H.F.d.L.)
| | - Júlio O. F. Melo
- Departamento de Ciências Exatas e Biológicas, Campus Sete Lagoas, Universidade Federal de São João Del-Rei, Sete Lagoas 35700-000, MG, Brazil; (Y.G.F.); (A.H.d.O.J.); (A.C.d.C.M.); (H.d.O.P.M.); (Y.M.G.); (L.H.F.d.L.)
- Correspondence:
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Li L, Sun X, Zhao D, Dai H. Pharmacological Applications and Action Mechanisms of Phytochemicals as Alternatives to Antibiotics in Pig Production. Front Immunol 2021; 12:798553. [PMID: 34956234 PMCID: PMC8695855 DOI: 10.3389/fimmu.2021.798553] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Accepted: 11/22/2021] [Indexed: 12/13/2022] Open
Abstract
Antibiotics are widely used for infectious diseases and feed additives for animal health and growth. Antibiotic resistant caused by overuse of antibiotics poses a global health threat. It is urgent to choose safe and environment-friendly alternatives to antibiotics to promote the ecological sustainable development of the pig industry. Phytochemicals are characterized by little residue, no resistance, and minimal side effects and have been reported to improve animal health and growth performance in pigs, which may become a promising additive in pig production. This paper summarizes the biological functions of recent studies of phytochemicals on growth performance, metabolism, antioxidative capacity, gut microbiota, intestinal mucosa barrier, antiviral, antimicrobial, immunomodulatory, detoxification of mycotoxins, as well as their action mechanisms in pig production. The review may provide the theoretical basis for the application of phytochemicals functioning as alternative antibiotic additives in the pig industry.
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Affiliation(s)
- Lexing Li
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Xueyan Sun
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Dai Zhao
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Hanchuan Dai
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
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Sharma M, Grewal K, Jandrotia R, Batish DR, Singh HP, Kohli RK. Essential oils as anticancer agents: Potential role in malignancies, drug delivery mechanisms, and immune system enhancement. Biomed Pharmacother 2021; 146:112514. [PMID: 34963087 DOI: 10.1016/j.biopha.2021.112514] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Revised: 11/30/2021] [Accepted: 12/06/2021] [Indexed: 01/04/2023] Open
Abstract
Cancer retains a central place in fatality rates among the wide variety of diseases known world over, and the conventional synthetic medicaments, albeit used until now, produce numerous side effects. As a result, newer, better, and safer alternatives such as natural plant products, are gravely required. Essential oils (EOs) offer a plethora of bioactivities including antibacterial, antiviral, antioxidant, and anticancer properties, therefore, the use of EOs in combination with synthetic drugs or aromatherapy continues to be popular in many settings. In view of the paramount importance of EOs and their potential bioactivities, this review summarizes the current knowledge on the interconnection between EOs and cancer treatment. In particular, the current review presents an updated summary of the chemical composition of EOs, their current applications in cancer treatments based on clinical studies, and the mechanism of action against the cancer cell lines. Similarly, an overview of using EOs in aromatherapy and enhancing immunity during cancer treatment is provided. Further, this review focuses on the recent technological advancements such as the loading of EOs using protein microspheres, ligands, or nanoemulsions/nanoencapsulation, which offer multiple benefits in cancer treatment via site-specific and target-oriented delivery of drugs. The continuing clinical studies of EOs implicate that their pharmacological applications are a rewarding research area.
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Affiliation(s)
- Mansi Sharma
- Department of Environment Studies, Panjab University, Chandigarh 160 014, India
| | - Kamaljit Grewal
- Department of Botany, Panjab University, Chandigarh 160 014, India
| | - Rupali Jandrotia
- Department of Botany, Panjab University, Chandigarh 160 014, India
| | | | - Harminder Pal Singh
- Department of Environment Studies, Panjab University, Chandigarh 160 014, India.
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Pandur E, Balatinácz A, Micalizzi G, Mondello L, Horváth A, Sipos K, Horváth G. Anti-inflammatory effect of lavender (Lavandula angustifolia Mill.) essential oil prepared during different plant phenophases on THP-1 macrophages. BMC Complement Med Ther 2021; 21:287. [PMID: 34819075 PMCID: PMC8611982 DOI: 10.1186/s12906-021-03461-5] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Accepted: 11/02/2021] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND Pseudomonas aeruginosa is the most common Gram-negative bacterium associated with nosocomial respiratory infections. Lavender essential oil is mainly used in aromatherapy, but it has several pharmacological and therapeutic properties. Furthermore, it possesses antifungal and antibacterial activities. The anti-inflammatory activity of essential oils may depend on the composition and the ratio of the compounds. The constitution of the essential oils extracted from the different stages of flowering period varies, which makes it plausible that the collection time of the flowers influences the anti-inflammatory effects. Different types of essential oils reduce inflammation acting similarly by modulating the activity and action of the NFκB signalling pathway, which is the major regulator of the transcription of pro-inflammatory cytokines. METHODS Lavender essential oils were distilled from lavender plant cultivated in Hungary and the flowers were harvested at the beginning and at the end of flowering period. The experiments were carried out on THP-1 human monocyte/macrophage cell line as in vitro cell culture model for monitoring the effects of lavender essential oils and the main compound linalool on P. aeruginosa LPS stimulated inflammation. The mRNA and protein levels of four pro-inflammatory cytokines, IL-6, IL-1β, IL-8 and TNFα were determined by Real Time PCR and ELISA measurements. The effects of essential oils were compared to the response to two NFκB inhibitors, luteolin and ACHP. RESULTS Linalool and lavender essential oil extracted from plants at the beginning of flowering period were successful in decreasing pro-inflammatory cytokine production following LPS pretreatment. In case of IL-8 and IL-1β lavender oil showed stronger effect compared to linalool and both of them acted similarly to NFκB inhibitors. Pretreatments with linalool and lavender essential oil/beginning of flowering period prevented pro-inflammatory cytokine production compared to LPS treatment alone. Although lavender essential oil/end of flowering period decreased IL-6, IL-1β and IL-8 mRNA expression in case of LPS pretreatment, it was not capable to reduce cytokine secretion. CONCLUSION Based on our results it has been proven that lavender essential oil extracted at the beginning of flowering period is a potent inhibitor of the synthesis of four pro-inflammatory cytokines IL-6, IL-8, IL-β and TNFα of THP-1 cells. This supports the relevance of the collection of the lavender flowers from early blooming period for essential oil production and for the utilization as an anti-inflammatory treatment.
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Affiliation(s)
- Edina Pandur
- Department of Pharmaceutical Biology, Faculty of Pharmacy, University of Pécs, H-7624, Rókus u. 2, Pécs, Hungary
| | - Alex Balatinácz
- Department of Pharmacognosy, Faculty of Pharmacy, University of Pécs, H-7624, Rókus u. 2, Pécs, Hungary
| | - Giuseppe Micalizzi
- Chromaleont s.r.l., c/o Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, 98168, Messina, Italy
| | - Luigi Mondello
- Chromaleont s.r.l., c/o Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, 98168, Messina, Italy.,Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, 98168, Messina, Italy.,Unit of Food Science and Nutrition, Department of Medicine, University Campus Bio-Medico of Rome, 00128, Rome, Italy
| | - Adrienn Horváth
- Department of Pharmacognosy, Faculty of Pharmacy, University of Pécs, H-7624, Rókus u. 2, Pécs, Hungary
| | - Katalin Sipos
- Department of Pharmaceutical Biology, Faculty of Pharmacy, University of Pécs, H-7624, Rókus u. 2, Pécs, Hungary
| | - Györgyi Horváth
- Department of Pharmacognosy, Faculty of Pharmacy, University of Pécs, H-7624, Rókus u. 2, Pécs, Hungary.
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Cappelli G, Mariani F. A Systematic Review on the Antimicrobial Properties of Mediterranean Wild Edible Plants: We Still Know Too Little about Them, but What We Do Know Makes Persistent Investigation Worthwhile. Foods 2021; 10:foods10092217. [PMID: 34574327 PMCID: PMC8471169 DOI: 10.3390/foods10092217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Revised: 09/09/2021] [Accepted: 09/13/2021] [Indexed: 12/04/2022] Open
Abstract
(1) Introduction: Bacterial resistance to antibiotics is estimated to be the cause of a major number of deaths by 2050 if we do not find strategies to slow down the rise of drug resistance. Reviews on Mediterranean wild edible plants (MWEPs) with antimicrobial properties are scarce in the main databases (PubMed, Scopus, and WoS). Hence, we proceeded to conduct a new review of the studies on MWEPs. (2) Methods: We used ‘wild edible plant’ and ‘antimicrobial’ as keywords. Within this group, exclusion criteria were reviews, studies concerning non-Mediterranean plants or non-edible plants, studies on topics other than plants or containing no description of antimicrobial properties, or off-topic studies. (3) Results: Finally, out of the one hundred and ninety-two studies we had started with, we reviewed thirty-eight (19.8%) studies concerning the antimicrobial properties of seventy-four MWEPs species belonging to twenty-five Families. Fifty-seven (77%) species out of seventy-four proved to be antimicrobial, with a stringent threshold selection. (4) Conclusions: Studies are still very heterogeneous. We still know too little about MWEPs’ properties; however, what we already know strongly recommends carrying on investigation.
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Hwang JW, Myeong SH, Lee NH, Kim H, Son HJ, Chang JW, Lee NK, Na DL. Immunosuppressant Drugs Mitigate Immune Responses Generated by Human Mesenchymal Stem Cells Transplanted into the Mouse Parenchyma. Cell Transplant 2021; 30:9636897211019025. [PMID: 34044601 PMCID: PMC8168027 DOI: 10.1177/09636897211019025] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
It has been widely accepted that mesenchymal stem cells (MSCs) can evade the immune surveillance of the recipient. However, emerging research cast doubt on whether MSCs are intrinsically immune-privileged. Previously, we observed that the transplantation of human MSCs (hMSCs) into the mouse parenchyma attracted a high infiltration of leukocytes into the injection tract. Thus, in order to reduce the immune responses generated by hMSCs, the aim of this study was to assess which immunosuppressant condition (dexamethasone only, tacrolimus only, or dexamethasone and tacrolimus together) would not only reduce the overall immune response but also enhance the persistence of MSCs engrafted into the caudate putamen of wild-type C57BL/6 mice. According to immunohistochemical analysis, compared to the hMSC only group, the administration of immunosuppressants (for all three conditions) reduced the infiltration of CD45-positive leukocytes and neutrophils at the site of injection. The highest hMSC persistence was detected from the group that received combinatorial administrations of dexamethasone and tacrolimus. Moreover, compared to the immunocompetent WT mouse, higher MSC engraftment was observed from the immunodeficient BALB/c mice. The results of this study support the use of immunosuppressants to tackle MSC-mediated immune responses and to possibly prolong the engraftment of transplanted MSCs.
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Affiliation(s)
- Jung Won Hwang
- Department of Health Sciences and Technology, SAIHST, 35019Sungkyunkwan University, Gangnam-gu, Seoul, Republic of Korea.,Stem Cell & Regenerative Medicine Institute, 36626Samsung Medical Center, Seoul, Republic of Korea.,Department of Neurology, Samsung Medical Center, 35019Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Su Hyeon Myeong
- Department of Health Sciences and Technology, SAIHST, 35019Sungkyunkwan University, Gangnam-gu, Seoul, Republic of Korea.,Stem Cell & Regenerative Medicine Institute, 36626Samsung Medical Center, Seoul, Republic of Korea.,Department of Neurology, Samsung Medical Center, 35019Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Na-Hee Lee
- Department of Health Sciences and Technology, SAIHST, 35019Sungkyunkwan University, Gangnam-gu, Seoul, Republic of Korea.,Stem Cell & Regenerative Medicine Institute, 36626Samsung Medical Center, Seoul, Republic of Korea.,Department of Neurology, Samsung Medical Center, 35019Sungkyunkwan University School of Medicine, Seoul, Republic of Korea.,Alzheimer's Disease Convergence Research Center, 36626Samsung Medical Center, Seoul, Republic of Korea
| | - Hyeongseop Kim
- Stem Cell & Regenerative Medicine Institute, 36626Samsung Medical Center, Seoul, Republic of Korea.,Stem Cell Institute, ENCell Co. Ltd., Seoul, Republic of Korea
| | - Hyo Jin Son
- Stem Cell & Regenerative Medicine Institute, 36626Samsung Medical Center, Seoul, Republic of Korea.,Department of Neurology, Samsung Medical Center, 35019Sungkyunkwan University School of Medicine, Seoul, Republic of Korea.,Alzheimer's Disease Convergence Research Center, 36626Samsung Medical Center, Seoul, Republic of Korea.,School of Medicine, 35019Sungkyunkwan University, Seoul, Republic of Korea
| | - Jong Wook Chang
- Stem Cell & Regenerative Medicine Institute, 36626Samsung Medical Center, Seoul, Republic of Korea.,Stem Cell Institute, ENCell Co. Ltd., Seoul, Republic of Korea
| | - Na Kyung Lee
- Stem Cell & Regenerative Medicine Institute, 36626Samsung Medical Center, Seoul, Republic of Korea.,Alzheimer's Disease Convergence Research Center, 36626Samsung Medical Center, Seoul, Republic of Korea.,School of Medicine, 35019Sungkyunkwan University, Seoul, Republic of Korea
| | - Duk L Na
- Department of Health Sciences and Technology, SAIHST, 35019Sungkyunkwan University, Gangnam-gu, Seoul, Republic of Korea.,Stem Cell & Regenerative Medicine Institute, 36626Samsung Medical Center, Seoul, Republic of Korea.,Department of Neurology, Samsung Medical Center, 35019Sungkyunkwan University School of Medicine, Seoul, Republic of Korea.,Alzheimer's Disease Convergence Research Center, 36626Samsung Medical Center, Seoul, Republic of Korea.,School of Medicine, 35019Sungkyunkwan University, Seoul, Republic of Korea
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Minerals, Essential Oils, and Biological Properties of Melissa officinalis L. PLANTS 2021; 10:plants10061066. [PMID: 34073337 PMCID: PMC8229312 DOI: 10.3390/plants10061066] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Revised: 05/02/2021] [Accepted: 05/21/2021] [Indexed: 12/04/2022]
Abstract
This study describes the minerals elements, chemical composition, antioxidant and antimicrobial activities of Algerian Melissa officinalis plant. The essential oil (EO) was extracted by hydrodistillation (HD) using a Clevenger-type apparatus of dry leaves of M. officinalis and was analyzed by two techniques, gas chromatography coupled with flame ionization (GC-FID) and gas chromatography coupled with mass spectrometry (GC-MS). Eighteen minerals comprising both macro- and microelements (As, Br, K, La, Na, Sb, Sm, Ba, Ca, Ce, Co, Cr, Cs, Fe, Rb, Sc, Th, and Zn) were determined using neutron activation analysis technique for the first time from Algerian Melissa officinalis plant. Seventy-eight compounds were identified in the essential oil, representing 94.090% of the total oil and the yields were 0.470%. The major component was geranial (45.060%). Other predominant components were neral (31.720%) and citronellal (6.420%). The essential oil presented high antimicrobial activity against microorganisms, mainly five human pathogenic bacteria, one yeast, Candida albicans, and two phytopathogenic fungi. The results can be used as a source of information for the pharmaceutical industry and medical research.
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El-Azrak KEDM, Morsy AS, Soltan YA, Hashem NM, Sallam SMA. Impact of specific essential oils blend on milk production, serum biochemical parameters and kid performance of goats. Anim Biotechnol 2021; 33:1344-1352. [PMID: 33719916 DOI: 10.1080/10495398.2021.1898978] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Effects of cinnamon, thyme, and peppermint essential oils blend (EOB) on milk production, serum constituents, and energy balance of early lactating does and performance of their kids were investigated. Twenty-seven late pregnant Damascus goats were grouped into two treatments: EOB (n = 14) received orally 1.5 ml EOB/d and control (n = 13) received orally 1.5 ml water/d. The trail started 15 days before the expected kidding date and lasted for 30 days postpartum while sample collection continued until the eighth week of lactation. Milk yield and composition, maternal metabolic profile, immunoglobulin (IgG), and weights of kids were monitored throughout 8 consecutive weeks postpartum. Energy corrected milk (ECM), milk energy value (MEV), net energy for lactation (NEL), and energy balance were estimated. Does treated with EOB had higher (p < 0.05) milk yield, ECM, and NEL than control. Treated does had higher (p = 0.02) energy balance than control does. The EOB increased (p < 0.05) concentrations of serum albumin, cholesterol, triglycerides, and IgG. Treatment with EOB improved (p < 0.05) weaning weight and total weight gain of single kids. Administration of EOB for 45 days during the transition period could improve milk production, metabolic status and energy balance of goats and performance of kids.
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Affiliation(s)
- Kheir El-Din M El-Azrak
- Animal and Fish Production Department, Faculty of Agriculture, Alexandria University, Alexandria, Egypt
| | - Amr S Morsy
- Livestock Research Department, Arid Lands Cultivation Research Institute, City of Scientific Research and Technological Applications, Alexandria, Egypt
| | - Yosra A Soltan
- Animal and Fish Production Department, Faculty of Agriculture, Alexandria University, Alexandria, Egypt
| | - Nesrein M Hashem
- Animal and Fish Production Department, Faculty of Agriculture, Alexandria University, Alexandria, Egypt
| | - Sobhy M A Sallam
- Animal and Fish Production Department, Faculty of Agriculture, Alexandria University, Alexandria, Egypt
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Lieshchova MA, Brygadyrenko VV. Influence of Lavandula angustifolia, Melissa officinalis and Vitex angus-castus on the organism of rats fed with excessive fat-containing diet. REGULATORY MECHANISMS IN BIOSYSTEMS 2021. [DOI: 10.15421/022125] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
Plant food additives are becoming more and more popular and broadly applied products, though the information on risks they poses to the organism is limited and contradictive. Obesity and overeating are some of the commonest health issues around the world, and people are increasingly consuming workability-enhancing preparations as a simple and fast method of weight control. The plant-based preparations are considered less harmful than the synthetic chemical ones. Lavandula angustifolia Mill., Melissa officinalis L. and Vitex angus-castus L. are broadly used as food additives and medicinal plants, despite the fact that their complex physiological assessment on model animals in the conditions of obesity has not yet been performed. We carried out a 30-day experiment on white male rats. All the animals were given high-fat diet, and the experimental animals, in addition to this diet, received 5% crumbled dry herbs of L. angustifolia, M. officinalis or V. angus-castus. Taking into account the overall amount of consumed food, the mean daily gain in body weight; at the end of the experiment, we determined the index of the weight of the internal organs, biochemical and morphological blood parameters. At the beginning and the end of the experiment, the rats were examined for motor and orienting activities, and emotional status. Rats on high-fat diet gained up to 112% body weight by the end of the experiment, while rats that had received V. angus-castus gained up to 119%, M. officinalis – 135%, L. angustifolia – 139%, compared with the initial body weight. Addition of medicinal plants to the diet led to increase in average daily weight increment, significantly and reliably after consuming lavender and lemon balm, less significantly and unreliably after eating Vitex. L. angustifolia and M. officinalis reduced the relative brain weight, and ingestion of L. angustifolia and M. officinalis caused notable decrease in the relative mass of the thymus (down to 58% and 47% of the relative weight of thymus in animals of the control group respectively). Also, these plants decreased the motor and orienting activities of the rats by the end of the experiment. As for the biochemical parameters of blood, the activity of alkaline phosphatase significantly increased to 406% following consumption of Melissa, to 350% after consuming lavender, and to 406% after Vitex, compared to the control group. Furthermore, all the groups were observed to have increased AST and ALT activities. Intake of lavender led to increases in cholesterol (to 125%) and LDL cholesterol (to 228%), whereas the groups that consumed lemon balm were observed to have decreases in urea nitrogen (to 79%), totalbilirubin (to 63%) and triglycerides (to 63%). Addition of Vitex led to increase in the index of aterogenecity against the background of notable fall in HDL cholesterol (to 52% of the control group). The medicinal plants also contributed to the normalization of the glucose level. Morphological analysis of blood revealed no significant changes, except heightened content of monocytes in blood, which is characteristic of all groups, including the control. Effects of L. angustifolia, M. officinalis and V. angus-castus on the organism of rats on excessive-fat diet require additional histological, histochemical and immunological surveys.
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Liquid and Vapor Phase of Four Conifer-Derived Essential Oils: Comparison of Chemical Compositions and Antimicrobial and Antioxidant Properties. Pharmaceuticals (Basel) 2021; 14:ph14020134. [PMID: 33567501 PMCID: PMC7914598 DOI: 10.3390/ph14020134] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 02/02/2021] [Accepted: 02/04/2021] [Indexed: 01/07/2023] Open
Abstract
In this study, the chemical composition of the vapor and liquid phase of Pinus cembra L., Pinus mugo Turra, Picea abies L., and Abies Alba M. needles essential oils (EOs) was investigated by Headspace-Gas Chromatography/Mass Spectrometry (HS-GC/MS). In the examined EOs, a total of twenty-eight components were identified, most of which belong to the monoterpenes family. α-Pinene (16.6-44.0%), β-pinene (7.5-44.7%), limonene (9.5-32.5%), and γ-terpinene (0.3-19.7%) were the most abundant components of the liquid phase. Such major compounds were also detected in the vapor phase of all EOs, and α-pinene reached higher relative percentages than in the liquid phase. Then, both the liquid and vapor phases were evaluated in terms of antibacterial activity against three Gram-negative bacteria (Escherichia coli, Pseudomonas fluorescens, and Acinetobacter bohemicus) and two Gram-positive bacteria (Kocuria marina and Bacillus cereus) using a microwell dilution assay, disc diffusion assay, and vapor phase test. The lowest Minimum Inhibitory Concentration (MIC) (13.28 mg/mL) and Minimal Bactericidal Concentration (MBC) (26.56 mg/mL) values, which correspond to the highest antibacterial activities, were reported for P. abies EO against A. bohemicus and for A. alba EO against A. bohemicus and B. cereus. The vapor phase of all the tested EOs was more active than liquid phase, showing the inhibition halos from 41.00 ± 10.15 mm to 80.00 ± 0.00 mm for three bacterial strains (A. bohemicus, K. marina, and B. cereus). Furthermore, antioxidant activities were also investigated by 2,2-diphenyl-1-picrylhydrazyl (DPPH) and 2,2'-azinobis (3- ethylbenzothiazoline-6-sulfonic acid) diammonium salt (ABTS) assays, and a concentration-dependent antioxidant capacity for all EOs was found. P. mugo EO showed the best antioxidant activity than the other Pinaceae EOs. The four Pinaceae EOs could be further investigated for their promising antibacterial and antioxidant properties, and, in particular, α-pinene seems to have interesting possibilities for use as a novel natural antibacterial agent.
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Nature Exposure and Its Effects on Immune System Functioning: A Systematic Review. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18041416. [PMID: 33546397 PMCID: PMC7913501 DOI: 10.3390/ijerph18041416] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/09/2021] [Revised: 01/26/2021] [Accepted: 01/29/2021] [Indexed: 01/18/2023]
Abstract
Given the drastic changes in our lifestyles and ecosystems worldwide, the potential health effects of natural environments have grown into a highly pervasive topic. Recent scientific findings suggest beneficial effects from nature exposure on human immune responses. This review aims at providing a comprehensive overview of literature published on immunomodulatory effects of nature exposure by inhalation of natural substances. A systematic database search was performed in SCOPUS and PubMed. The quality and potential bias of included studies (n = 33) were assessed by applying the EPHPP (Effective Public Health Practice Project) tool for human studies and the ARRIVE (Animal Research: Reporting of In Vivo Experiments) and SYRCLE (Systematic Review Centre for Laboratory Animal Experimentation) tools for animal studies. The synthesis of reviewed studies points to positive effects of nature exposure on immunological health parameters; such as anti-inflammatory, anti-allergic, anti-asthmatic effects or increased NK (natural killer) cell activity. Decreased expression of pro-inflammatory molecules, infiltration of leukocytes and release of cytotoxic mediators are outcomes that may serve as a baseline for further studies. However, partially weak study designs evoked uncertainties about outcome reproducibility and key questions remain open concerning effect sizes, duration of exposure and contributions of specific vegetation or ecosystem types.
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Seifert G, Jeitler M, Stange R, Michalsen A, Cramer H, Brinkhaus B, Esch T, Kerckhoff A, Paul A, Teut M, Ghadjar P, Langhorst J, Häupl T, Murthy V, Kessler CS. The Relevance of Complementary and Integrative Medicine in the COVID-19 Pandemic: A Qualitative Review of the Literature. Front Med (Lausanne) 2020; 7:587749. [PMID: 33363186 PMCID: PMC7761649 DOI: 10.3389/fmed.2020.587749] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Accepted: 11/17/2020] [Indexed: 01/07/2023] Open
Abstract
Background: During the COVID-19 pandemic people are facing risks of adverse health effects due to the restrictions implemented such as quarantine measures, reduced social contact, and self-isolation. In this qualitative review, we collected data on potential preventive and therapeutic health benefits of Complementary and Integrative Medicine (CIM) that might be useful during the COVID-19 pandemic. We have reviewed the scientific literature to summarize CIM practices that could be beneficial for improving physical and mental health and well-being of the population under the current pandemic circumstances. It must be noted that this review is not SARS-CoV-2 specific and we explicitly do not intend to make any SARS-CoV-2 specific health claims in this article. Methods and Findings: A qualitative, non-systematic literature review was conducted in Medline to identify literature describing preventive and therapeutic CIM approaches for strengthening mental and physical health. For a variety of CIM approaches clinical evidence was identified, indicating beneficial effects. CIM approaches include specific dietary measures and selected micronutrients, physical activity, techniques from Mind-Body Medicine, single botanicals or botanical compounds, and spending time in nature among others. The effects of CIM measures on conditions like obesity and hypertension are of special relevance here, as these conditions are considered as risk factors for a severe course of COVID-19. Moreover, a possibly direct effect of CIM approaches on immune functions and clinical parameters in respiratory tract infections, such as influenza, were identified. The findings of this review could be helpful for clinicians, patients, and the general population during the current pandemic when discussing and/or considering CIM options. Conclusions: CIM offers a variety of preventive and therapeutic options for strengthening physical and mental resilience, which could also be useful in the current COVID-19 pandemic. The evidence of CIM approaches with a potential benefit in the COVID-19 pandemic in different areas is worth to be analyzed. While this qualitative review has several obvious limitations, it might serve as useful starting point for further research on this topic.
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Affiliation(s)
- Georg Seifert
- Department of Paediatric Oncology/Haematology, Otto-Heubner Centre for Paediatric and Adolescent Medicine (OHC), Charité – Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany,Department of Pediatrics, Faculty of Medicine, University of São Paulo, São Paulo, Brazil,*Correspondence: Georg Seifert
| | - Michael Jeitler
- Department of Internal and Integrative Medicine, Immanuel Krankenhaus Berlin, Berlin, Germany,Institute of Social Medicine, Epidemiology and Health Economics, Charité – Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Rainer Stange
- Department of Internal and Integrative Medicine, Immanuel Krankenhaus Berlin, Berlin, Germany,Institute of Social Medicine, Epidemiology and Health Economics, Charité – Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Andreas Michalsen
- Department of Internal and Integrative Medicine, Immanuel Krankenhaus Berlin, Berlin, Germany,Institute of Social Medicine, Epidemiology and Health Economics, Charité – Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Holger Cramer
- Department of Internal and Integrative Medicine, Evang. Kliniken Essen-Mitte, Faculty of Medicine, University of Duisburg-Essen, Essen, Germany,National Centre for Naturopathic Medicine, Southern Cross University, Lismore, NSW, Australia
| | - Benno Brinkhaus
- Institute of Social Medicine, Epidemiology and Health Economics, Charité – Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Tobias Esch
- Institute for Integrative Health Care and Health Promotion, University Clinic for Integrative Health Care, Faculty of Health, School of Medicine, Witten/Herdecke University, Witten, Germany
| | - Annette Kerckhoff
- Institute for Integrative Health Care and Health Promotion, University Clinic for Integrative Health Care, Faculty of Health, School of Medicine, Witten/Herdecke University, Witten, Germany
| | - Anna Paul
- Department of Internal and Integrative Medicine, Evang. Kliniken Essen-Mitte, Faculty of Medicine, University of Duisburg-Essen, Essen, Germany
| | - Michael Teut
- Institute of Social Medicine, Epidemiology and Health Economics, Charité – Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Pirus Ghadjar
- Department of Radiation Oncology, Charité – Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Jost Langhorst
- Department of Internal and Integrative Medicine, Klinikum Bamberg, Chair for Integrative Medicine, University of Duisburg-Essen, Bamberg, Germany
| | - Thomas Häupl
- Department of Rheumatology and Clinical Immunology, Charité – Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Vijay Murthy
- Faculty of Medicine, Primary Care and Population Sciences, University of Southampton, Southampton, United Kingdom
| | - Christian S. Kessler
- Department of Internal and Integrative Medicine, Immanuel Krankenhaus Berlin, Berlin, Germany,Institute of Social Medicine, Epidemiology and Health Economics, Charité – Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
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The Novel Quantitative Assay for Measuring the Antibiofilm Activity of Volatile Compounds (AntiBioVol). APPLIED SCIENCES-BASEL 2020. [DOI: 10.3390/app10207343] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Herein, we present a new test, dubbed AntiBioVol, to be used for the quantitative evaluation of antibiofilm activity of volatile compounds in vitro. AntiBioVol is performed in two 24-well plates using a basic microbiological laboratory equipment. To demonstrate AntiBioVol usability, we have scrutinized the activity of volatilized eucalyptus, tea tree, thyme essential oils, and ethanol (used for method suitability testing) against biofilms of Staphylococcus aureus, Pseudomonas aeruginosa, and Candida albicans. We have also compared AntiBioVol with the standard disc volatilization method, placing a special stress on evaluating the impact of various technical parameters on the outcomes of the latter method. The obtained results indicate that AntiBioVol allows analyzing the antibiofilm activity of volatile compounds in a high number of repeats and provides semi-quantitative or quantitative results of high repeatability. In comparison to disc volatilization, AntiBioVol is a more space- and cost-effective method that allows analyzing various types of microbial aggregates. Moreover, we have indicated that the possible reasons for the discrepancies in the results obtained by means of the standard disc volatilization method may be related to various parameters of the testing dishes used (height, volume, diameter) and to various volumes of the agar medium applied. In turn, the application of a 24-well plate and a strictly defined AntiBioVol protocol provide a higher control of experimental conditions. Therefore, the application of AntiBioVol may enable an optimization of and introduction of volatile compounds to the fight against infective biofilms.
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Ruzauskas M, Bartkiene E, Stankevicius A, Bernatoniene J, Zadeike D, Lele V, Starkute V, Zavistanaviciute P, Grigas J, Zokaityte E, Pautienius A, Juodeikiene G, Jakstas V. The Influence of Essential Oils on Gut Microbial Profiles in Pigs. Animals (Basel) 2020; 10:ani10101734. [PMID: 32987688 PMCID: PMC7598605 DOI: 10.3390/ani10101734] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Revised: 09/20/2020] [Accepted: 09/22/2020] [Indexed: 12/12/2022] Open
Abstract
Simple Summary In recent years, the intake of ultra-processed foods has increased dramatically worldwide. Missing natural foods in the diet raise the need of biologically active food components that could compensate for this deficiency and help maintain proper immune status. In this study, the microbial changes in pigs as experimental animals were assessed as influenced by consumption of oregano extract combination with peppermint and thyme essential oils. The results demonstrated that the combination of plant extracts had a positive effect on the gastrointestinal tract of animals by increasing the number of probiotic bacteria. Based on the results obtained it may be outlined that the combination of oregano extract and peppermint and thyme essential oils can be promising ingredient as a functional component for the development of the new nutraceutical preparation. Abstract In recent years, the intake of ultra-processed foods has increased dramatically worldwide. Missing natural foods in the diet raise the need of biologically active food components that could compensate for this deficiency and help maintain proper immune status. This study used pigs as an animal model for the assessment of the impact of consumption of Origanum vulgare plant extract combined with Mentha piperita and Thymus vulgaris essential oils on microbial profile in intestines. A single group of weaned pigs received basal diet, while the other group basal diet supplemented with plant extract and two essential oils in the form of bilayer tablets prepared using “liquid/solid” phase technology. Metagenomic sequencing was performed with the aim to investigate changes of microbial communities in ileum, caecum, and colon. The results demonstrated that the combination of essential oils was non cytotoxic, and had a positive effect on the microbial composition in the large intestine of pigs due to significant increase in the number of probiotic bacteria. The amount of Lactobacillus was 2.5 times and Bifidobacterium 1.9 times higher in the animal group fed with supplement. The combination, however, had some negative impact on the variety of minor species in the distal part of the ileum. Additional studies need to be performed to obtain knowledge on how combinations of essential oils can change bacterial variety in the proximal part of the gastrointestinal tract.
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Affiliation(s)
- Modestas Ruzauskas
- Microbiology and Virology Institute, Lithuanian University of Health Sciences, Tilžes g. 18, LT-47181 Kaunas, Lithuania
- Department of Anatomy and Physiology, Immunology Laboratory, Lithuanian University of Health Sciences, Tilzes g. 18, LT-47181 Kaunas, Lithuania; (A.S.); (J.G.); (A.P.)
- Correspondence: ; Tel.: +370-615-15240
| | - Elena Bartkiene
- Institute of Animal Rearing Technologies, Lithuanian University of Health Sciences, Tilzes g. 18, LT-47181 Kaunas, Lithuania; (E.B.); (V.L.); (V.S.); (P.Z.); (E.Z.)
- Department of Food Safety and Quality, Lithuanian University of Health Sciences, Tilzes g. 18, LT-47181 Kaunas, Lithuania
| | - Arunas Stankevicius
- Department of Anatomy and Physiology, Immunology Laboratory, Lithuanian University of Health Sciences, Tilzes g. 18, LT-47181 Kaunas, Lithuania; (A.S.); (J.G.); (A.P.)
| | - Jurga Bernatoniene
- Institute of Pharmaceutical Technologies, Medical Academy, Lithuanian University of Health Sciences, Sukileliu pr. 13, LT-50161 Kaunas, Lithuania; (J.B.); (V.J.)
- Department of Drug Technology and Social Pharmacy, Lithuanian University of Health Sciences, Eivenių str. 4, LT-50161 Kaunas, Lithuania
| | - Daiva Zadeike
- Department of Food Science and Technology, Kaunas University of Technology, Radvilenu Rd. 19, LT-50254 Kaunas, Lithuania; (D.Z.); (G.J.)
| | - Vita Lele
- Institute of Animal Rearing Technologies, Lithuanian University of Health Sciences, Tilzes g. 18, LT-47181 Kaunas, Lithuania; (E.B.); (V.L.); (V.S.); (P.Z.); (E.Z.)
- Department of Food Safety and Quality, Lithuanian University of Health Sciences, Tilzes g. 18, LT-47181 Kaunas, Lithuania
| | - Vytaute Starkute
- Institute of Animal Rearing Technologies, Lithuanian University of Health Sciences, Tilzes g. 18, LT-47181 Kaunas, Lithuania; (E.B.); (V.L.); (V.S.); (P.Z.); (E.Z.)
- Department of Food Safety and Quality, Lithuanian University of Health Sciences, Tilzes g. 18, LT-47181 Kaunas, Lithuania
| | - Paulina Zavistanaviciute
- Institute of Animal Rearing Technologies, Lithuanian University of Health Sciences, Tilzes g. 18, LT-47181 Kaunas, Lithuania; (E.B.); (V.L.); (V.S.); (P.Z.); (E.Z.)
- Department of Food Safety and Quality, Lithuanian University of Health Sciences, Tilzes g. 18, LT-47181 Kaunas, Lithuania
| | - Juozas Grigas
- Department of Anatomy and Physiology, Immunology Laboratory, Lithuanian University of Health Sciences, Tilzes g. 18, LT-47181 Kaunas, Lithuania; (A.S.); (J.G.); (A.P.)
| | - Egle Zokaityte
- Institute of Animal Rearing Technologies, Lithuanian University of Health Sciences, Tilzes g. 18, LT-47181 Kaunas, Lithuania; (E.B.); (V.L.); (V.S.); (P.Z.); (E.Z.)
- Department of Food Safety and Quality, Lithuanian University of Health Sciences, Tilzes g. 18, LT-47181 Kaunas, Lithuania
| | - Arnoldas Pautienius
- Department of Anatomy and Physiology, Immunology Laboratory, Lithuanian University of Health Sciences, Tilzes g. 18, LT-47181 Kaunas, Lithuania; (A.S.); (J.G.); (A.P.)
| | - Grazina Juodeikiene
- Department of Food Science and Technology, Kaunas University of Technology, Radvilenu Rd. 19, LT-50254 Kaunas, Lithuania; (D.Z.); (G.J.)
| | - Valdas Jakstas
- Institute of Pharmaceutical Technologies, Medical Academy, Lithuanian University of Health Sciences, Sukileliu pr. 13, LT-50161 Kaunas, Lithuania; (J.B.); (V.J.)
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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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Immunomodulatory Activities of Selected Essential Oils. Biomolecules 2020; 10:biom10081139. [PMID: 32756359 PMCID: PMC7464830 DOI: 10.3390/biom10081139] [Citation(s) in RCA: 59] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2020] [Revised: 07/14/2020] [Accepted: 07/31/2020] [Indexed: 12/14/2022] Open
Abstract
Recently, the application of herbal medicine for the prevention and treatment of diseases has gained increasing attention. Essential oils (EOs) are generally known to exert various pharmacological effects, such as antiallergic, anticancer, anti-inflammatory, and immunomodulatory effects. Current literature involving in vitro and in vivo studies indicates the potential of various herbal essential oils as suitable immunomodulators for the alternative treatment of infectious or immune diseases. This review highlights the cellular effects induced by EOs, as well as the molecular impacts of EOs on cytokines, immunoglobulins, or regulatory pathways. The results reviewed in this article revealed a significant reduction in relevant proinflammatory cytokines, as well as induction of anti-inflammatory markers. Remarkably, very little clinical study data involving the immunomodulatory effects of EOs are available. Furthermore, several studies led to contradictory results, emphasizing the need for a multiapproach system to better characterize EOs. While immunomodulatory effects were reported, the toxic potential of EOs must be clearly considered in order to secure future applications.
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