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Zhai B, Li H, Hu Y, Wu D, Li J, Zhang X, Gao Q, Xie C, Yang C. Anti-inflammatory sesquiterpenoids from Ligularia fischeriTurcz. Fitoterapia 2024; 177:106088. [PMID: 38897245 DOI: 10.1016/j.fitote.2024.106088] [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: 01/09/2024] [Revised: 04/26/2024] [Accepted: 06/16/2024] [Indexed: 06/21/2024]
Abstract
Ligularia fischeriTurcz. is a medicinal plant for the treatment of inflammation in China and Korea. Its chemical components in anti-sepsis activity and the related molecular mechanisms remain unknown yet. In this study, two undescribed eremophilane sesquiterpenoids fischerins A (1) and B (2), together with 8 known sesquiterpenoid derivatives (3-10), were isolated from the whole plant of L. fischeri. Their structures were identified by detailed spectroscopic and ECD analyses. 3-Oxo-8-hydroxyeremophila-1,7(11)-dien-12,8-olide (6) showed the most inhibitory effect on NO production in LPS-stimulated RAW 264.7 cells with the IC50 value of 6.528 μM. Meanwhile, compound 6 also decreased the mRNA expression of pro-inflammatory factors IFN-γ, IL-1β, IL-6 and TNF-α via downregulating NF-κB signaling pathway in vitro. Furthermore, compound 6 reduced the mortality, murine sepsis score, the serum TNF-α level and organic damage in a mouse model of sepsis. These findings indicated that compound 6 possessed the potent anti-inflammatory activity and had the potential as a promising drug candidate for sepsis therapy.
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Affiliation(s)
- Binghui Zhai
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin 300353, People's Republic of China; Tianjin International Joint Academy of Biomedicine, Tianjin 300070, People's Republic of China
| | - Hailong Li
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin 300353, People's Republic of China
| | - Yayue Hu
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin 300353, People's Republic of China; Tianjin International Joint Academy of Biomedicine, Tianjin 300070, People's Republic of China
| | - Dan Wu
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin 300353, People's Republic of China
| | - Jiahang Li
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin 300353, People's Republic of China; Tianjin International Joint Academy of Biomedicine, Tianjin 300070, People's Republic of China
| | - Xiangrong Zhang
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin 300353, People's Republic of China; Tianjin International Joint Academy of Biomedicine, Tianjin 300070, People's Republic of China
| | - Qian Gao
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin 300353, People's Republic of China
| | - Chunfeng Xie
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin 300353, People's Republic of China.
| | - Cheng Yang
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin 300353, People's Republic of China.
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Li J, Niu L, Huang H, Li Q, Xie C, Yang C. Anti-inflammatory labdane diterpenoids from the aerial parts of Leonurus sibiricus. PHYTOCHEMISTRY 2024; 217:113927. [PMID: 37956887 DOI: 10.1016/j.phytochem.2023.113927] [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: 08/27/2023] [Revised: 11/07/2023] [Accepted: 11/09/2023] [Indexed: 11/15/2023]
Abstract
Eleven undescribed labdane diterpenoids, sibiricusins K-U, and seven known analogues were obtained from the MeOH extract of the aerial parts of Leonurus sibiricus. The structures of the compounds were established by detailed spectroscopic data analysis, single-crystal X-ray diffraction analysis and ECD calculations. Among them, sibiricusins L-N featured a rare α, β-unsaturated-γ-lactam moiety. Fourteen of the isolates were evaluated for their anti-inflammatory effect on the production of NO in LPS-induced RAW264.7 cells through Griess assay. Sibiricusin O displayed the strongest activity with an IC50 value of 9.0 ± 1.7 μM.
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Affiliation(s)
- Jiahang Li
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Haihe Education Park, 38 Tongyan Road, Tianjin, 300353, China; Tianjin International Joint Academy of Biomedicine, Tianjin, 300457, China
| | - Lihang Niu
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Haihe Education Park, 38 Tongyan Road, Tianjin, 300353, China
| | - Hong Huang
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Haihe Education Park, 38 Tongyan Road, Tianjin, 300353, China; Tianjin International Joint Academy of Biomedicine, Tianjin, 300457, China
| | - Qing Li
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Haihe Education Park, 38 Tongyan Road, Tianjin, 300353, China; Tianjin International Joint Academy of Biomedicine, Tianjin, 300457, China
| | - Chunfeng Xie
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Haihe Education Park, 38 Tongyan Road, Tianjin, 300353, China.
| | - Cheng Yang
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Haihe Education Park, 38 Tongyan Road, Tianjin, 300353, China.
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Guan S, Xia J, Huang R, Ding J, Liu X, Zhang Y, Zhang X. Pitsubcosides A-L, highly esterified eudesmane sesquiterpenoid glycosides with antibacterial activity from Pittosporum subulisepalum and their mechanism. PEST MANAGEMENT SCIENCE 2023; 79:3471-3485. [PMID: 37139845 DOI: 10.1002/ps.7527] [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] [Received: 04/06/2023] [Revised: 04/29/2023] [Accepted: 05/02/2023] [Indexed: 05/05/2023]
Abstract
BACKGROUND Plants from the genus Pittosporum are traditionally used as antibacterial, antifungal and antiviral agents. A bioassay evaluation of the extract of Pittosporum subulisepalum revealed antibacterial activity. This study focused on the discovery of the antibacterial metabolism in P. subulisepalum, as well as the modes of action of its active components. RESULTS A chemical investigation of an ethyl acetate (EtOAc) extract of the aerial parts of P. subulisepalum led to the isolation of 12 previously undescribed eudesmane sesquiterpenoid glycoside esters (ESGEs), pitsubcosides A-L (1-12). Their structures were elucidated by extensive spectroscopic analysis, including one- and two-dimensional NMR, high-resolution electrospray ionization mass spectrometry, electronic circular dichroism spectra and single-crystal X-ray crystallography analysis or by comparing with authentic samples. The new ESGEs were characterized by their highly esterified glycoside moieties. Among them, compounds 1-3, 5 and 8 showed a moderate inhibitory effect against Staphylococcus aureus, methicillin-resistant S. aureus (MRSA), Bacillus cereus, Bacillus subtilis, Pseudomonas syringae pv. actinidiae (Psa) and Erwinia carotovora with minimum inhibitory concentrations (MICs) ranging from 3.13 to 100 μm. Among them, compounds 3 and 5 showed remarkable antibacterial activity against S. aureus and Psa with MIC values of 6.25 and 3.13 μm, respectively. Live bacterial mass and the biofilms of S. aureus and Psa were quantified using methyl tetrazolium and crystal violet assays. Fluorescence microscopy and scanning electron microscopy experiments revealed an antibacterial mechanism of cell membrane architectural disruption. CONCLUSION The results suggest that ESGEs possess great potential for the development of antibacterial agents to control plant pathogens. © 2023 Society of Chemical Industry.
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Affiliation(s)
- Shengnan Guan
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, PR China
| | - Jiankai Xia
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, PR China
| | - Rong Huang
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, PR China
| | - Jiaqi Ding
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, PR China
| | - Xinzheng Liu
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, PR China
| | - Yufeng Zhang
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, PR China
| | - Xiuyun Zhang
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, PR China
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Stakanovs G, Belyakov S, Jirgensons A, Rasina D. Convergent biomimetic semisynthesis of disesquiterpenoid rumphellolide J. Org Biomol Chem 2022; 20:2455-2461. [PMID: 35254363 DOI: 10.1039/d2ob00238h] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The convergent biomimetic gram-scale synthesis of disesquiterpenoid ester rumphellolide J is described. 4β,8β-Epoxycaryophyllan-5-ol was prepared in 67% yield (1.4 g) from naturally ambudant (-)-β-caryophyllene. (+)-Rumphellaoic acid A was obtained in 46% yield (2.2 g) from (-)-caryophyllene oxide. The synthesised (+)-rumphellaoic acid had an opposite specific rotation compared to that of (-)-rumphellaoic acid A isolated from nature, indicating possible occurrence of (+)-β-caryophyllene in Rumphella antipathies and Psidium guajava. Esterification of (+)-rumphellaoic acid A via acyl fluoride and alkoxide of 4β,8β-epoxycaryophyllan-5-ol gave rumphellolide J in 70% yield (1.65 g). The same structure for the synthesized product and natural isolate was proven despite the opposite specific rotation value of the intermediate acid. The short access to the terpenoids provides a material for further investigations of biological activities and valuable reference standards for the analysis of the chemical composition of various natural sources.
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Affiliation(s)
- Georgijs Stakanovs
- Latvian Institute of Organic Synthesis, Aizkraukles Str. 21, LV-1006, Riga, Latvia.
| | - Sergey Belyakov
- Latvian Institute of Organic Synthesis, Aizkraukles Str. 21, LV-1006, Riga, Latvia.
| | - Aigars Jirgensons
- Latvian Institute of Organic Synthesis, Aizkraukles Str. 21, LV-1006, Riga, Latvia.
| | - Dace Rasina
- Latvian Institute of Organic Synthesis, Aizkraukles Str. 21, LV-1006, Riga, Latvia.
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Caryophyllene and caryophyllene oxide: a variety of chemical transformations and biological activities. CHEMICAL PAPERS 2022. [DOI: 10.1007/s11696-021-01865-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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Hashiesh HM, Meeran MN, Sharma C, Sadek B, Kaabi JA, Ojha SK. Therapeutic Potential of β-Caryophyllene: A Dietary Cannabinoid in Diabetes and Associated Complications. Nutrients 2020; 12:nu12102963. [PMID: 32998300 PMCID: PMC7599522 DOI: 10.3390/nu12102963] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Revised: 08/14/2020] [Accepted: 09/01/2020] [Indexed: 02/06/2023] Open
Abstract
Diabetes mellitus (DM), a metabolic disorder is one of the most prevalent chronic diseases worldwide across developed as well as developing nations. Hyperglycemia is the core feature of the type 1 diabetes mellitus (T1DM) and type 2 diabetes mellitus (T2DM), following insulin deficiency and impaired insulin secretion or sensitivity leads insulin resistance (IR), respectively. Genetic and environmental factors attributed to the pathogenesis of DM and various therapeutic strategies are available for the prevention and treatment of T2DM. Among the numerous therapeutic approaches, the health effects of dietary/nutraceutical approach due to the presence of bioactive constituents, popularly termed phytochemicals are receiving special interest for pharmacological effects and therapeutic benefits. The phytochemicals classes, in particular sesquiterpenes received attention because of potent antioxidant, anti-inflammatory, and antihyperglycemic effects and health benefits mediating modulation of enzymes, receptors, and signaling pathways deranged in DM and its complications. One of the terpene compounds, β-caryophyllene (BCP), received enormous attention because of its abundant occurrence, non-psychoactive nature, and dietary availability through consumption of edible plants including spices. BCP exhibit selective full agonism on cannabinoid receptor type 2 (CB2R), an important component of endocannabinoid system, and plays a role in glucose and lipid metabolism and represents the newest drug target for chronic inflammatory diseases. BCP also showed agonist action on peroxisome proliferated activated receptor subtypes, PPAR-α and PPAR-γ, the main target of currently used fibrates and imidazolidinones for dyslipidemia and IR, respectively. Many studies demonstrated its antioxidant, anti-inflammatory, organoprotective, and antihyperglycemic properties. In the present review, the plausible therapeutic potential of BCP in diabetes and associated complications has been comprehensively elaborated based on experimental and a few clinical studies available. Further, the pharmacological and molecular mechanisms of BCP in diabetes and its complications have been represented using synoptic tables and schemes. Given the safe status, abundant natural occurrence, oral bioavailability, dietary use and pleiotropic properties modulating receptors and enzymes, BCP appears as a promising molecule for diabetes and its complications.
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Affiliation(s)
- Hebaallah Mamdouh Hashiesh
- Department of Pharmacology & Therapeutics, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain P.O. Box 17666, UAE; (H.M.H.); (M.F.N.M.); (B.S.)
| | - M.F. Nagoor Meeran
- Department of Pharmacology & Therapeutics, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain P.O. Box 17666, UAE; (H.M.H.); (M.F.N.M.); (B.S.)
| | - Charu Sharma
- Department of Internal Medicine, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain P.O. Box 17666, UAE; (C.S.); (J.A.K.)
| | - Bassem Sadek
- Department of Pharmacology & Therapeutics, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain P.O. Box 17666, UAE; (H.M.H.); (M.F.N.M.); (B.S.)
- Zayed Center for Health Sciences, United Arab Emirates University, Al Ain P.O. Box 17666, UAE
| | - Juma Al Kaabi
- Department of Internal Medicine, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain P.O. Box 17666, UAE; (C.S.); (J.A.K.)
| | - Shreesh K. Ojha
- Department of Pharmacology & Therapeutics, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain P.O. Box 17666, UAE; (H.M.H.); (M.F.N.M.); (B.S.)
- Zayed Center for Health Sciences, United Arab Emirates University, Al Ain P.O. Box 17666, UAE
- Correspondence: ; Tel.: +971-3-713-7524; Fax: +971-3-767-2033
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Stakanovs G, Mishnev A, Rasina D, Jirgensons A. A Concise Bioinspired Semisynthesis of Rumphellaones A-C and Their C-8 Epimers from β-Caryophyllene. JOURNAL OF NATURAL PRODUCTS 2020; 83:2004-2009. [PMID: 32538090 DOI: 10.1021/acs.jnatprod.0c00403] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The first semisynthetic route toward rumphellaones B (2) and C (3) and their C-8 epimers as well as the shortest synthesis of rumphellaone A (1) and its C-8 epimer from the most accessible sesquiterpene, β-caryophyllene (4), is presented. Synthetic routes involved caryophyllonic acid as a key intermediate, which was converted to rumphellaone A (and epimer) via acid-catalyzed lactonization and rumphellaone C (and epimer) using one-pot epoxidation-lactonization. Rumphellaone B (2) and its epimer were obtained from rumphellaone A (1) and its epimer, respectively, using Saegusa-Ito oxidation. The absolute configuration at C-8 was confirmed by single-crystal X-ray analysis of rumphellaone B (2) and an acylated derivative of rumphellaone C.
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Affiliation(s)
- Georgijs Stakanovs
- Latvian Institute of Organic Synthesis, Aizkraukles Street 21, LV-1006, Riga, Latvia
| | - Anatoly Mishnev
- Latvian Institute of Organic Synthesis, Aizkraukles Street 21, LV-1006, Riga, Latvia
| | - Dace Rasina
- Latvian Institute of Organic Synthesis, Aizkraukles Street 21, LV-1006, Riga, Latvia
| | - Aigars Jirgensons
- Latvian Institute of Organic Synthesis, Aizkraukles Street 21, LV-1006, Riga, Latvia
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Schepetkin IA, Özek G, Özek T, Kirpotina LN, Khlebnikov AI, Quinn MT. Chemical Composition and Immunomodulatory Activity of Hypericum perforatum Essential Oils. Biomolecules 2020; 10:biom10060916. [PMID: 32560389 PMCID: PMC7357012 DOI: 10.3390/biom10060916] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 06/11/2020] [Accepted: 06/12/2020] [Indexed: 12/20/2022] Open
Abstract
Hypericum L. (Hypericaceae) extracts have been used for their therapeutic effects; however, not much is known about the immunomodulatory activity of essential oils extracted from this plant. We isolated essential oils from the flowers and leaves of H. perforatum and analyzed their chemical composition and innate immunomodulatory activity. Analysis of flower (HEOFl) versus leaf (HEOLv) essential oils using gas chromatography–mass spectrometry revealed that HEOFl was comprised mainly of monoterpenes (52.8%), with an abundance of oxygenated monoterpenes, including cis-p-menth-3-en-1,2-diol (9.1%), α-terpineol (6.1%), terpinen-4-ol (7.4%), and limonen-4-ol (3.2%), whereas the sesquiterpenes were found in trace amounts. In contrast, HEOLv was primarily composed of sesquiterpenes (63.2%), including germacrene D (25.7%) and β-caryophyllene (9.5%). HEOLv also contained oxygenated monoterpenes, including terpinen-4-ol (2.6%), while monoterpene hydrocarbons were found in trace amounts. Both HEOFl and HEOLv inhibited neutrophil Ca2+ mobilization, chemotaxis, and reactive oxygen species (ROS) production, with HEOLv being much more active than HEOFl. Furthermore, the pure sesquiterpenes germacrene D, β-caryophyllene, and α-humulene also inhibited these neutrophil responses, suggesting that these compounds represented the active components of HEOLv. Although reverse pharmacophore mapping suggested that potential protein targets of germacrene D, β-caryophyllene, bicyclogermacrene, and α-humulene could be PIM1 and mitogen-activated protein kinase (MAPK)-activated protein kinase 2 (MAPKAK2), a kinase binding affinity assay did not support this finding, implying that other biological targets are involved. Our results provide a cellular and molecular basis to explain at least part of the beneficial immunotherapeutic properties of the H. perforatum essential oils.
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Affiliation(s)
- Igor A. Schepetkin
- Department of Microbiology and Immunology, Montana State University, Bozeman, MT 59717, USA; (I.A.S.); (L.N.K.)
| | - Gulmira Özek
- Department of Pharmacognosy, Faculty of Pharmacy, Anadolu University, Eskişehir 26470, Turkey; (G.Ö.); (T.Ö.)
| | - Temel Özek
- Department of Pharmacognosy, Faculty of Pharmacy, Anadolu University, Eskişehir 26470, Turkey; (G.Ö.); (T.Ö.)
- Medicinal Plant, Drug and Scientific Research and Application Center (AUBIBAM), Anadolu University, Eskişehir 26470, Turkey
| | - Liliya N. Kirpotina
- Department of Microbiology and Immunology, Montana State University, Bozeman, MT 59717, USA; (I.A.S.); (L.N.K.)
| | - Andrei I. Khlebnikov
- Kizhner Research Center, Tomsk Polytechnic University, Tomsk 634050, Russia;
- Scientific Research Institute of Biological Medicine, Altai State University, Barnaul 656049, Russia
| | - Mark T. Quinn
- Department of Microbiology and Immunology, Montana State University, Bozeman, MT 59717, USA; (I.A.S.); (L.N.K.)
- Correspondence: ; Tel.: +1-406-994-4707; Fax: +1-406-994-4303
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