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Dittrichia graveolens (L.) Greuter, a Rapidly Spreading Invasive Plant: Chemistry and Bioactivity. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27030895. [PMID: 35164160 PMCID: PMC8840657 DOI: 10.3390/molecules27030895] [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: 12/17/2021] [Revised: 01/24/2022] [Accepted: 01/26/2022] [Indexed: 11/17/2022]
Abstract
Dittrichia graveolens L. Greuter belonging to the Asteraceae family, is an aromatic herbaceous plant native to the Mediterranean region. This plant species has been extensively studied for its biological activities, including antioxidant, antitumor, antimicrobial, antifungal, anti-inflammatory, anticholinesterase, and antityrosinase, and for its peculiar metabolic profile. In particular, bioactivities are related to terpenes and flavonoids metabolites, such as borneol (40), tomentosin (189), inuviscolide (204). However, D. graveolens is also well known for causing health problems both in animals and humans. Moreover, the species is currently undergoing a dramatic northward expansion of its native range related to climate change, now including North Europe, California, and Australia. This review represents an updated overview of the 52 literature papers published in Scopus and PubMed dealing with expansion, chemistry (262 different compounds), pharmacological effects, and toxicology of D. graveolens up to October 2021. The review is intended to boost further studies to determine the molecular pathways involved in the observed activities, bioavailability, and clinical studies to explore new potential applications.
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Visan DC, Oprea E, Radulescu V, Voiculescu I, Biris IA, Cotar AI, Saviuc C, Chifiriuc MC, Marinas IC. Original Contributions to the Chemical Composition, Microbicidal, Virulence-Arresting and Antibiotic-Enhancing Activity of Essential Oils from Four Coniferous Species. Pharmaceuticals (Basel) 2021; 14:1159. [PMID: 34832941 PMCID: PMC8617773 DOI: 10.3390/ph14111159] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Revised: 11/07/2021] [Accepted: 11/10/2021] [Indexed: 11/16/2022] Open
Abstract
This study aimed to establish the essential oil (EO) composition from young shoots of Picea abies, Larix decidua, Pseudotsuga menziesii, and Pinus nigra harvested from Romania and evaluate their antimicrobial and anti-virulence activity, as well as potential synergies with currently used antibiotics. The samples' EO average content varied between 0.62% and 1.02% (mL/100 g plant). The mono- and sesquiterpene hydrocarbons were dominant in the composition of the studied EOs. The antimicrobial activity revealed that the minimum inhibitory concentration (MIC) values for the tested EOs and some pure compounds known for their antimicrobial activity ranged from 6.25 to 100 µL/mL. The most intensive antimicrobial effect was obtained for the Pinus nigra EO, which exhibited the best synergistic effect with some antibiotics against Staphylococcus aureus strains (i.e., oxacillin, tetracycline, erythromycin and gentamycin). The subinhibitory concentrations (sMIC) of the coniferous EOs inhibited the expression of soluble virulence factors (DN-ase, lipase, lecithinase, hemolysins, caseinase and siderophore-like), their efficiency being similar to that of the tested pure compounds, and inhibited the rhl gene expression in Pseudomonas aeruginosa, suggesting their virulence-arresting drug potential.
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Affiliation(s)
- Diana-Carolina Visan
- Department of Organic Chemistry, Faculty of Pharmacy, University of Medicine and Pharmacy “Carol Davila”, 6 Traian Vuia Street, 020956 Bucharest, Romania; (D.-C.V.); (V.R.)
| | - Eliza Oprea
- Department of Organic Chemistry, Biochemistry and Catalysis, Faculty of Chemistry, University of Bucharest, 4-12 Regina Elisabeta, 030018 Bucharest, Romania
| | - Valeria Radulescu
- Department of Organic Chemistry, Faculty of Pharmacy, University of Medicine and Pharmacy “Carol Davila”, 6 Traian Vuia Street, 020956 Bucharest, Romania; (D.-C.V.); (V.R.)
| | - Ion Voiculescu
- “Marin Drăcea” National Institute for Forestry Research and Development, 128 Eroilor, 077190 Voluntari, Romania; (I.V.); (I.-A.B.)
| | - Iovu-Adrian Biris
- “Marin Drăcea” National Institute for Forestry Research and Development, 128 Eroilor, 077190 Voluntari, Romania; (I.V.); (I.-A.B.)
- Faculty of Agriculture, University of Agronomic Sciences and Veterinary Medicine of Bucharest, 59 Mărăşti, 011464 Bucharest, Romania
| | - Ani Ioana Cotar
- Cantacuzino National Medico-Military Institute for Research and Development, 103 Splaiul Independenței, 050096 Bucharest, Romania;
| | - Crina Saviuc
- Research Institute of the University of Bucharest—ICUB, 91-95 Spl. Independentei, 050657 Bucharest, Romania; (C.S.); (M.C.C.); (I.C.M.)
- Microbiology Department, Faculty of Biology, University of Bucharest, 1-3 Portocalilor Way, 060101 Bucharest, Romania
| | - Mariana Carmen Chifiriuc
- Research Institute of the University of Bucharest—ICUB, 91-95 Spl. Independentei, 050657 Bucharest, Romania; (C.S.); (M.C.C.); (I.C.M.)
- Microbiology Department, Faculty of Biology, University of Bucharest, 1-3 Portocalilor Way, 060101 Bucharest, Romania
- Academy of Romanian Scientists, 3 Ilfov Street, 50044 Bucharest, Romania
| | - Ioana Cristina Marinas
- Research Institute of the University of Bucharest—ICUB, 91-95 Spl. Independentei, 050657 Bucharest, Romania; (C.S.); (M.C.C.); (I.C.M.)
- Microbiology Department, Faculty of Biology, University of Bucharest, 1-3 Portocalilor Way, 060101 Bucharest, Romania
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Levent G, Anderson RC, Petrujkić B, Poole TL, He H, Genovese KJ, Hume ME, Beier RC, Harvey RB, Nisbet DJ. Evaluation of Thymol-β-d-Glucopyranoside as a Potential Prebiotic Intervention to Reduce Carriage of Zoonotic Pathogens in Weaned and Feeder Pigs. Microorganisms 2021; 9:microorganisms9040860. [PMID: 33923741 PMCID: PMC8073024 DOI: 10.3390/microorganisms9040860] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 04/10/2021] [Accepted: 04/13/2021] [Indexed: 02/07/2023] Open
Abstract
The gut of food-producing animals is a reservoir for foodborne pathogens. Thymol is bactericidal against foodborne pathogens but rapid absorption of thymol from the proximal gut precludes the delivery of effective concentrations to the lower gut where pathogens mainly colonize. Thymol-β-d-glucopyranoside is reported to be more resistant to absorption than thymol in everted jejunal segments and could potentially function as a prebiotic by resisting degradation and absorption in the proximal gut but being hydrolysable by microbial β-glycosidase in the distal gut. Previous in vitro studies showed bactericidal effects of thymol-β-d-glucopyranoside against Campylobacter, Escherichia coli, and Salmonella enterica serovar Typhimurium in the presence but not absence of intestinal microbes expressing β-glycosidase activity, indicating that hydrolysis was required to obtain antimicrobial activity. Presently, the oral administration of thymol-β-d-glucopyranoside was studied to examine the effects on intestinal carriage of Campylobacter, E. coli, and S. Typhimurium in swine. The effects of thymol-β-d-glucopyranoside or thymol on antimicrobial sensitivity of representative E. coli isolates and characterized Salmonella strains were also explored. Results from two in vivo studies revealed little antimicrobial effects of thymol-β-d-glucopyranoside on Campylobacter, E. coli, or S. Typhimurium in swine gut. These findings add credence to current thinking that hydrolysis and absorption of thymol-β-d-glucopyranoside and thymol may be sufficiently rapid within the proximal gut to preclude delivery to the distal gut. Antibiotic susceptibilities of selected bacterial isolates and strains were mainly unaffected by thymol. Further research is warranted to overcome obstacles, preventing the delivery of efficacious amounts of thymol-β-d-glucopyranoside to the lower gut.
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Affiliation(s)
- Gizem Levent
- United States Department of Agriculture, Agricultural Research Service, Food and Feed Safety Research Unit, College Station, TX 77845, USA; (G.L.); (B.P.); (T.L.P.); (H.H.); (K.J.G.); (M.E.H.); (R.C.B.); (R.B.H.); (D.J.N.)
- Department of Veterinary Pathobiology, Texas A&M University, College Station, TX 77840, USA
| | - Robin C. Anderson
- United States Department of Agriculture, Agricultural Research Service, Food and Feed Safety Research Unit, College Station, TX 77845, USA; (G.L.); (B.P.); (T.L.P.); (H.H.); (K.J.G.); (M.E.H.); (R.C.B.); (R.B.H.); (D.J.N.)
- Correspondence: ; Tel.: +1-979-260-9317
| | - Branko Petrujkić
- United States Department of Agriculture, Agricultural Research Service, Food and Feed Safety Research Unit, College Station, TX 77845, USA; (G.L.); (B.P.); (T.L.P.); (H.H.); (K.J.G.); (M.E.H.); (R.C.B.); (R.B.H.); (D.J.N.)
- Faculty of Veterinary Medicine, University of Belgrade, 11000 Belgrade, Serbia
| | - Toni L. Poole
- United States Department of Agriculture, Agricultural Research Service, Food and Feed Safety Research Unit, College Station, TX 77845, USA; (G.L.); (B.P.); (T.L.P.); (H.H.); (K.J.G.); (M.E.H.); (R.C.B.); (R.B.H.); (D.J.N.)
| | - Haiqi He
- United States Department of Agriculture, Agricultural Research Service, Food and Feed Safety Research Unit, College Station, TX 77845, USA; (G.L.); (B.P.); (T.L.P.); (H.H.); (K.J.G.); (M.E.H.); (R.C.B.); (R.B.H.); (D.J.N.)
| | - Kenneth J. Genovese
- United States Department of Agriculture, Agricultural Research Service, Food and Feed Safety Research Unit, College Station, TX 77845, USA; (G.L.); (B.P.); (T.L.P.); (H.H.); (K.J.G.); (M.E.H.); (R.C.B.); (R.B.H.); (D.J.N.)
| | - Michael E. Hume
- United States Department of Agriculture, Agricultural Research Service, Food and Feed Safety Research Unit, College Station, TX 77845, USA; (G.L.); (B.P.); (T.L.P.); (H.H.); (K.J.G.); (M.E.H.); (R.C.B.); (R.B.H.); (D.J.N.)
| | - Ross C. Beier
- United States Department of Agriculture, Agricultural Research Service, Food and Feed Safety Research Unit, College Station, TX 77845, USA; (G.L.); (B.P.); (T.L.P.); (H.H.); (K.J.G.); (M.E.H.); (R.C.B.); (R.B.H.); (D.J.N.)
| | - Roger B. Harvey
- United States Department of Agriculture, Agricultural Research Service, Food and Feed Safety Research Unit, College Station, TX 77845, USA; (G.L.); (B.P.); (T.L.P.); (H.H.); (K.J.G.); (M.E.H.); (R.C.B.); (R.B.H.); (D.J.N.)
| | - David J. Nisbet
- United States Department of Agriculture, Agricultural Research Service, Food and Feed Safety Research Unit, College Station, TX 77845, USA; (G.L.); (B.P.); (T.L.P.); (H.H.); (K.J.G.); (M.E.H.); (R.C.B.); (R.B.H.); (D.J.N.)
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Kachur K, Suntres Z. The antibacterial properties of phenolic isomers, carvacrol and thymol. Crit Rev Food Sci Nutr 2019; 60:3042-3053. [PMID: 31617738 DOI: 10.1080/10408398.2019.1675585] [Citation(s) in RCA: 186] [Impact Index Per Article: 37.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Most of the antibacterial activities of essential oils from the Lamiaceae herbaceous plant family thyme and oregano are attributed to their bioactive isomeric monoterpenoid constituents, carvacrol and thymol. Commercially available antibiotics of thymol or carvacrol have not yet been developed but health products have incorporated thymol into their formulations for their antimicrobial properties. Carvacrol and thymol are generally considered safe for consumption and they have been used in dental applications, approved as food flavorings and have been considered as antibacterial additives in food and feed. Many studies have demonstrated that carvacrol and thymol are potent antibacterial agents against both Gram-positive and Gram-negative bacteria. The most frequently reported mechanism of antibacterial action of both isomers involves the disruption of bacterial membrane leading to bacterial lysis and leakage of intracellular contents resulting in death. Other proposed mechanisms of antibacterial action include the inhibition of efflux pumps, prevention in the formation and disruption of preformed biofilms, inhibition of bacterial motility, and inhibition of membrane ATPases. In addition, both isomers have been found to act additively or synergistically with conventional antibiotics important in overcoming the problem of bacteria resistance in food and disease.
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Affiliation(s)
- Karina Kachur
- Department of Biology, Lakehead University, Thunder Bay, Ontario, Canada
| | - Zacharias Suntres
- Department of Biology, Lakehead University, Thunder Bay, Ontario, Canada.,Medical Sciences Division, Northern Ontario School of Medicine, Thunder Bay, Ontario, Canada
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L. Miladinović D, S. Ilić B, C. Miladinović L, D. Miladinović M. STUDY OF ESSENTIAL METALS IN SELECTED MEDICINAL PLANT FROM SERBIA. ACTA MEDICA MEDIANAE 2018. [DOI: 10.5633/amm.2018.0106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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