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Torres-Huerta A, Ruley-Haase K, Reed T, Boger-May A, Rubadeux D, Mayer L, Rajashekara AM, Hiller M, Frech M, Roncagli C, Pedersen C, Camacho MC, Hollmer L, English L, Kane G, Boone DL. Retinoid orphan receptor gamma t (rorγt) promotes inflammatory eosinophilia but is dispensable for innate immune-mediated colitis. PLoS One 2024; 19:e0300892. [PMID: 38512959 PMCID: PMC10956760 DOI: 10.1371/journal.pone.0300892] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Accepted: 03/05/2024] [Indexed: 03/23/2024] Open
Abstract
Inflammatory bowel diseases (IBD) result from uncontrolled inflammation in the intestinal mucosa leading to damage and loss of function. Both innate and adaptive immunity contribute to the inflammation of IBD and innate and adaptive immune cells reciprocally activate each other in a forward feedback loop. In order to better understand innate immune contributions to IBD, we developed a model of spontaneous 100% penetrant, early onset colitis that occurs in the absence of adaptive immunity by crossing villin-TNFAIP3 mice to RAG1-/- mice (TRAG mice). This model is driven by microbes and features increased levels of innate lymphoid cells in the intestinal mucosa. To investigate the role of type 3 innate lymphoid cells (ILC3) in the innate colitis of TRAG mice, we crossed them to retinoid orphan receptor gamma t deficient (Rorγt-/-) mice. Rorγt-/- x TRAG mice exhibited markedly reduced eosinophilia in the colonic mucosa, but colitis persisted in these mice. Colitis in Rorγt-/- x TRAG mice was characterized by increased infiltration of the intestinal mucosa by neutrophils, inflammatory monocytes, macrophages and other innate cells. RNA and cellular profiles of Rorγt-/- x TRAG mice were consistent with a lack of ILC3 and ILC3 derived cytokines, reduced antimicrobial factors, increased activation oof epithelial repair processes and reduced activation of epithelial cell STAT3. The colitis in Rorγt-/- x TRAG mice was ameliorated by antibiotic treatment indicating that microbes contribute to the ILC3-independent colitis of these mice. Together, these gene expression and cell signaling signatures reflect the double-edged sword of ILC3 in the intestine, inducing both proinflammatory and antimicrobial protective responses. Thus, Rorγt promotes eosinophilia but Rorγt and Rorγt-dependent ILC3 are dispensable for the innate colitis in TRAG mice.
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Affiliation(s)
- Alvaro Torres-Huerta
- Department of Microbiology & Immunology, Indiana University School of Medicine-South Bend, South Bend, IN, United States of America
| | - Katelyn Ruley-Haase
- Department of Biology, University of Notre Dame, South Bend, IN, United States of America
| | - Theodore Reed
- Department of Biology, University of Notre Dame, South Bend, IN, United States of America
| | - Antonia Boger-May
- Department of Microbiology & Immunology, Indiana University School of Medicine-South Bend, South Bend, IN, United States of America
| | - Derek Rubadeux
- Department of Biology, University of Notre Dame, South Bend, IN, United States of America
| | - Lauren Mayer
- Department of Biology, University of Notre Dame, South Bend, IN, United States of America
| | | | - Morgan Hiller
- Department of Biology, University of Notre Dame, South Bend, IN, United States of America
| | - Madeleine Frech
- Department of Biology, University of Notre Dame, South Bend, IN, United States of America
| | - Connor Roncagli
- Department of Biology, University of Notre Dame, South Bend, IN, United States of America
| | - Cameron Pedersen
- Department of Biology, University of Notre Dame, South Bend, IN, United States of America
| | - Mary Catherine Camacho
- Department of Biology, University of Notre Dame, South Bend, IN, United States of America
| | - Lauren Hollmer
- Department of Biology, University of Notre Dame, South Bend, IN, United States of America
| | - Lauren English
- Department of Biology, University of Notre Dame, South Bend, IN, United States of America
| | - Grace Kane
- Department of Biology, University of Notre Dame, South Bend, IN, United States of America
| | - David L. Boone
- Department of Microbiology & Immunology, Indiana University School of Medicine-South Bend, South Bend, IN, United States of America
- Department of Biology, University of Notre Dame, South Bend, IN, United States of America
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Yang Y, Zhang Y, Song J, Li Y, Zhou L, Xu H, Wu K, Gao J, Zhao M, Zheng Y. Bergamot polysaccharides relieve DSS-induced ulcerative colitis via regulating the gut microbiota and metabolites. Int J Biol Macromol 2023; 253:127335. [PMID: 37820919 DOI: 10.1016/j.ijbiomac.2023.127335] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Revised: 09/16/2023] [Accepted: 10/08/2023] [Indexed: 10/13/2023]
Abstract
This study aimed to explore the efficacy of polysaccharides from bergamot (BP) in alleviating DSS-induced colitis. Results showed that BP was primarily composed of two components, BP-1 and BP-2, with similar monosaccharide compositions to BP (mainly glucose and xylose) and molecular weights (Mw) of 4.50 × 105 and 2.35 × 105 Da. This study found BP relieved disease symptoms such as weight loss and colon shortening in mice with colitis. Gut microbiota and metabolomics analysis revealed that the BP could also promote the proliferation of beneficial bacteria such as Bifidobacteria, Butyrivibrio, and Blautia, resulting in increased levels of SCFAs and L-phenylalanine, which were associated with phenylalanine, tyrosine, and tryptophan metabolism pathways. Further analysis validated the inflammatory activity of L-phenylalanine. Hence, BP may relieve colitis symptoms by regulating the gut microbiota and metabolism, which reduced inflammation and enhanced the expression of tight junctional proteins (TJ proteins) and mucin in the intestine.
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Affiliation(s)
- Yiren Yang
- Chaozhou Branch of Chemistry and Chemical Engineering Guangdong Laboratory, Chaozhou 521031, China; School of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China
| | - Yuwei Zhang
- Chaozhou Branch of Chemistry and Chemical Engineering Guangdong Laboratory, Chaozhou 521031, China; School of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China
| | - Jiangping Song
- School of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China
| | - Yaqian Li
- School of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China
| | - Liuyang Zhou
- Chaozhou Branch of Chemistry and Chemical Engineering Guangdong Laboratory, Chaozhou 521031, China; School of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China
| | - Hongtao Xu
- School of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China
| | - Kaizhang Wu
- School of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China
| | - Jie Gao
- School of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China
| | - Mouming Zhao
- Chaozhou Branch of Chemistry and Chemical Engineering Guangdong Laboratory, Chaozhou 521031, China; School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China.
| | - Yang Zheng
- Chaozhou Branch of Chemistry and Chemical Engineering Guangdong Laboratory, Chaozhou 521031, China; School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China.
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Li H, Liu S, Zhang K, Zhu X, Dai J, Lu Y. Gut microbiome and plasma metabolome alterations in myopic mice. Front Microbiol 2023; 14:1251243. [PMID: 38179454 PMCID: PMC10764480 DOI: 10.3389/fmicb.2023.1251243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Accepted: 11/30/2023] [Indexed: 01/06/2024] Open
Abstract
Background Myopia is one of the most common eye diseases leading to blurred distance vision. Inflammatory diseases could trigger or exacerbate myopic changes. Although gut microbiota bacteria are associated with various inflammatory diseases, little is known about its role in myopia. Materials and methods The mice were randomly divided into control and model groups, with the model group being attached-30D lens onto the eyes for 3 weeks. Then, mouse cecal contents and plasma were collected to analyze their intestinal microbiota and plasma metabolome. Results We identified that the microbial composition differed considerably between the myopic and non-myopic mice, with the relative abundance of Firmicutes phylum decreased obviously while that of Actinobacteria phylum was increased in myopia. Furthermore, Actinobacteria and Bifidobacterium were positively correlated with axial lengths (ALs) of eyeballs while negatively correlated with refractive diopters. Untargeted metabolomic analysis identified 141 differentially expressed metabolites, and Kyoto Encyclopedia of Genes and Genomes pathway enrichment analysis revealed considerable enrichment mainly in amino acid metabolism pathways. Notably, pathways involved glutamate metabolism including "Glutamine and D-glutamate metabolism" and "Alanine, aspartate and glutamate metabolism" was changed dramatically, which presented as the concentrations of L-Glutamate and L-Glutamine decreased obviously in myopia. Interestingly, microbiome dysbiosis and metabolites alternations in myopia have a disrupting gut barrier feature. We further demonstrated that the gut barrier function was impaired in myopic mice manifesting in decreased expression of Occludin, ZO-1 and increased permeation of FITC-dextran. Discussion Myopic mice had obviously altered gut microbiome and metabolites profiles compared to non-myopic mice. The dysbiosis and plasma metabolomics shift in myopia had an interrupting gut barrier feature. Our study provides new insights into the possible role of the gut microbiota in myopia and reinforces the potential feasibility of microbiome-based therapies in myopia.
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Affiliation(s)
- Hao Li
- Department of Ophthalmology, Zhongshan Hospital, Fudan University, Shanghai, China
- Eye Institute, Eye & ENT Hospital, Fudan University, Shanghai, China
- NHC Key Laboratory of Myopia (Fudan University), Shanghai, China
- Key Laboratory of Myopia, Chinese Academy of Medical Sciences, Shanghai, China
- Shanghai Key Laboratory of Visual Impairment and Restoration, Shanghai, China
| | - Shuyu Liu
- Eye Institute, Eye & ENT Hospital, Fudan University, Shanghai, China
- NHC Key Laboratory of Myopia (Fudan University), Shanghai, China
- Key Laboratory of Myopia, Chinese Academy of Medical Sciences, Shanghai, China
- Shanghai Key Laboratory of Visual Impairment and Restoration, Shanghai, China
| | - Keke Zhang
- Eye Institute, Eye & ENT Hospital, Fudan University, Shanghai, China
- NHC Key Laboratory of Myopia (Fudan University), Shanghai, China
- Key Laboratory of Myopia, Chinese Academy of Medical Sciences, Shanghai, China
- Shanghai Key Laboratory of Visual Impairment and Restoration, Shanghai, China
| | - Xiangjia Zhu
- Eye Institute, Eye & ENT Hospital, Fudan University, Shanghai, China
- NHC Key Laboratory of Myopia (Fudan University), Shanghai, China
- Key Laboratory of Myopia, Chinese Academy of Medical Sciences, Shanghai, China
- Shanghai Key Laboratory of Visual Impairment and Restoration, Shanghai, China
| | - Jinhui Dai
- Department of Ophthalmology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Yi Lu
- Eye Institute, Eye & ENT Hospital, Fudan University, Shanghai, China
- NHC Key Laboratory of Myopia (Fudan University), Shanghai, China
- Key Laboratory of Myopia, Chinese Academy of Medical Sciences, Shanghai, China
- Shanghai Key Laboratory of Visual Impairment and Restoration, Shanghai, China
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Holcomb L, Holman JM, Hurd M, Lavoie B, Colucci L, Hunt B, Hunt T, Kinney M, Pathak J, Mawe GM, Moses PL, Perry E, Stratigakis A, Zhang T, Chen G, Ishaq SL, Li Y. Early life exposure to broccoli sprouts confers stronger protection against enterocolitis development in an immunological mouse model of inflammatory bowel disease. mSystems 2023; 8:e0068823. [PMID: 37942948 PMCID: PMC10734470 DOI: 10.1128/msystems.00688-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Accepted: 10/02/2023] [Indexed: 11/10/2023] Open
Abstract
IMPORTANCE To our knowledge, IL-10-KO mice have not previously been used to investigate the interactions of host, microbiota, and broccoli, broccoli sprouts, or broccoli bioactives in resolving symptoms of CD. We showed that a diet containing 10% raw broccoli sprouts increased the plasma concentration of the anti-inflammatory compound sulforaphane and protected mice to varying degrees against disease symptoms, including weight loss or stagnation, fecal blood, and diarrhea. Younger mice responded more strongly to the diet, further reducing symptoms, as well as increased gut bacterial richness, increased bacterial community similarity to each other, and more location-specific communities than older mice on the diet intervention. Crohn's disease disrupts the lives of patients and requires people to alter dietary and lifestyle habits to manage symptoms. The current medical treatment is expensive with significant side effects, and a dietary intervention represents an affordable, accessible, and simple strategy to reduce the burden of symptoms.
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Affiliation(s)
- Lola Holcomb
- Graduate School of Biomedical Sciences and Engineering, University of Maine, Orono, Maine, USA
| | - Johanna M. Holman
- School of Food and Agriculture, University of Maine, Orono, Maine, USA
| | - Molly Hurd
- Larner College of Medicine, University of Vermont, Burlington, Vermont, USA
| | - Brigitte Lavoie
- Larner College of Medicine, University of Vermont, Burlington, Vermont, USA
| | - Louisa Colucci
- Department of Biology, Husson University, Bangor, Maine, USA
| | - Benjamin Hunt
- Department of Biology, University of Maine, Orono, Maine, USA
| | - Timothy Hunt
- Department of Biology, University of Maine, Orono, Maine, USA
| | - Marissa Kinney
- School of Food and Agriculture, University of Maine, Orono, Maine, USA
| | - Jahnavi Pathak
- Graduate School of Biomedical Sciences and Engineering, University of Maine, Orono, Maine, USA
| | - Gary M. Mawe
- Larner College of Medicine, University of Vermont, Burlington, Vermont, USA
| | - Peter L. Moses
- Larner College of Medicine, University of Vermont, Burlington, Vermont, USA
- Finch Therapeutics, Somerville, Massachusetts, USA
| | - Emma Perry
- Electron Microscopy Laboratory, University of Maine, Orono, Maine, USA
| | - Allesandra Stratigakis
- School of Pharmacy and Pharmaceutical Sciences, SUNY Binghamton University, Johnson City, New York, USA
| | - Tao Zhang
- School of Pharmacy and Pharmaceutical Sciences, SUNY Binghamton University, Johnson City, New York, USA
| | - Grace Chen
- Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, Michigan, USA
| | - Suzanne L. Ishaq
- Graduate School of Biomedical Sciences and Engineering, University of Maine, Orono, Maine, USA
| | - Yanyan Li
- Graduate School of Biomedical Sciences and Engineering, University of Maine, Orono, Maine, USA
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Holman JM, Colucci L, Baudewyns D, Balkan J, Hunt T, Hunt B, Kinney M, Holcomb L, Stratigakis A, Chen G, Moses PL, Mawe GM, Zhang T, Li Y, Ishaq SL. Steamed broccoli sprouts alleviate DSS-induced inflammation and retain gut microbial biogeography in mice. mSystems 2023; 8:e0053223. [PMID: 37702510 PMCID: PMC10654075 DOI: 10.1128/msystems.00532-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Accepted: 07/24/2023] [Indexed: 09/14/2023] Open
Abstract
IMPORTANCE Evaluating bacterial communities across different locations in the gut provides a greater insight than fecal samples alone and provides an additional metric by which to evaluate beneficial host-microbe interactions. Here, we show that 10% steamed broccoli sprouts in the diet protects mice from the negative effects of dextran sodium sulfate-induced colitis, that colitis erases biogeographic patterns of bacterial communities in the gut, and that the cecum is not likely to be a significant contributor to colonic bacteria of interest in the DSS mouse model of ulcerative colitis. Mice fed the broccoli sprout diet during colitis performed better than mice fed the control diet while receiving DSS. The identification of accessible dietary components and concentrations that help maintain and correct the gut microbiome may provide universal and equitable approaches to IBD prevention and recovery, and broccoli sprouts represent a promising strategy.
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Affiliation(s)
- Johanna M. Holman
- School of Food and Agriculture, University of Maine, Orono, Maine, USA
| | - Louisa Colucci
- Department of Biology, Husson University, Bangor, Maine, USA
| | - Dorien Baudewyns
- Department of Psychology, University of Maine, Orono, Maine, USA
| | - Joe Balkan
- Department of Chemical and Biological Engineering, Tufts University, Medford, Massachusetts, USA
| | - Timothy Hunt
- Department of Biology, University of Maine, Orono, Maine, USA
| | - Benjamin Hunt
- Department of Biology, University of Maine, Orono, Maine, USA
| | - Marissa Kinney
- School of Food and Agriculture, University of Maine, Orono, Maine, USA
| | - Lola Holcomb
- Graduate School of Biomedical Sciences and Engineering, University of Maine, Orono, Maine, USA
| | - Allesandra Stratigakis
- School of Pharmacy and Pharmaceutical Sciences, SUNY Binghamton University, Johnson City, New York, USA
| | - Grace Chen
- Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, Michigan, USA
| | - Peter L. Moses
- Departments of Neurological Sciences and of Medicine, Larner College of Medicine, University of Vermont, Burlington, Vermont, USA
- Finch Therapeutics, Somerville, Massachusetts, USA
| | - Gary M. Mawe
- Departments of Neurological Sciences and of Medicine, Larner College of Medicine, University of Vermont, Burlington, Vermont, USA
| | - Tao Zhang
- School of Pharmacy and Pharmaceutical Sciences, SUNY Binghamton University, Johnson City, New York, USA
| | - Yanyan Li
- School of Food and Agriculture, University of Maine, Orono, Maine, USA
| | - Suzanne L. Ishaq
- School of Food and Agriculture, University of Maine, Orono, Maine, USA
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Holman JM, Colucci L, Baudewyns D, Balkan J, Hunt T, Hunt B, Kinney M, Holcomb L, Chen G, Moses PL, Mawe GM, Zhang T, Li Y, Ishaq SL. Steamed broccoli sprouts alleviate DSS-induced inflammation and retain gut microbial biogeography in mice. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.01.27.522641. [PMID: 37292900 PMCID: PMC10245759 DOI: 10.1101/2023.01.27.522641] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Inflammatory Bowel Diseases (IBD) are devastating conditions of the gastrointestinal tract with limited treatments, and dietary intervention may be effective, and affordable, for managing symptoms. Glucosinolate compounds are highly concentrated in broccoli sprouts, especially glucoraphanin, and can be metabolized by certain mammalian gut bacteria into anti inflammatory isothiocyanates, such as sulforaphane. Gut microbiota exhibit biogeographic patterns, but it is unknown if colitis alters these or whether the location of glucoraphanin metabolizing bacteria affects anti-inflammatory benefits. We fed specific pathogen free C57BL/6 mice either a control diet or a 10% steamed broccoli sprout diet, and gave a three-cycle regimen of 2.5% dextran sodium sulfate (DSS) in drinking water over a 34-day experiment to simulate chronic, relapsing ulcerative colitis. We monitored body weight, fecal characteristics, lipocalin, serum cytokines, and bacterial communities from the luminal and mucosa-associated populations in the jejunum, cecum, and colon. Mice fed the broccoli sprout diet with DSS treatment performed better than mice fed the control diet with DSS, including significantly more weight gain, lower Disease Activity Indexes, lower plasma lipocalin and proinflammatory cytokines, and higher bacterial richness in all gut locations. Bacterial communities were assorted by gut location, but were more homogenous across locations in the control diet + DSS mice. Importantly, our results showed that broccoli sprout feeding abrogated the effects of DSS on gut microbiota, as bacterial richness and biogeography were similar between mice receiving broccoli sprouts with and without DSS. Collectively, these results support the protective effect of steamed broccoli sprouts against dysbiosis and colitis induced by DSS. Importance Evaluating bacterial communities across different locations in the gut provides a greater insight than fecal samples alone, and provides an additional metric by which to evaluate beneficial host-microbe interactions. Here, we show that 10% steamed broccoli sprouts in the diet protects mice from the negative effects of dextran sodium sulfate induced colitis, that colitis erases biogeographical patterns of bacterial communities in the gut, and that the cecum is not likely to be a significant contributor to colonic bacteria of interest in the DSS mouse model of ulcerative colitis. Mice fed the broccoli sprout diet during colitis performed better than mice fed the control diet while receiving DSS. The identification of accessible dietary components and concentrations that help maintain and correct the gut microbiome may provide universal and equitable approaches to IBD prevention and recovery, and broccoli sprouts represent a promising strategy.
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Affiliation(s)
- Johanna M. Holman
- School of Food and Agriculture, University of Maine, Orono, Maine, USA 04469
| | - Louisa Colucci
- Department of Biology, Husson University, Bangor, Maine, USA 04401
| | | | - Joe Balkan
- Department of Chemical and Biological Engineering, Tufts University, Medford, Massachusetts, USA 02155
| | - Timothy Hunt
- Department of Biology, University of Maine, Orono, Maine, USA 04469
| | - Benjamin Hunt
- Department of Biology, University of Maine, Orono, Maine, USA 04469
| | - Marissa Kinney
- School of Food and Agriculture, University of Maine, Orono, Maine, USA 04469
| | - Lola Holcomb
- Graduate School of Biomedical Sciences and Engineering, University of Maine, Orono, Maine, USA 04469
| | - Grace Chen
- Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, Michigan, USA 48109
| | - Peter L. Moses
- Departments of Neurological Sciences and of Medicine, Larner College of Medicine, University of Vermont, Burlington, Vermont, USA 05401
- Finch Therapeutics, Somerville, Massachusetts, USA 02143
| | - Gary M. Mawe
- Departments of Neurological Sciences and of Medicine, Larner College of Medicine, University of Vermont, Burlington, Vermont, USA 05401
| | - Tao Zhang
- School of Pharmacy and Pharmaceutical Sciences, SUNY Binghamton University, Johnson City, New York, USA 13790
| | - Yanyan Li
- School of Food and Agriculture, University of Maine, Orono, Maine, USA 04469
| | - Suzanne L. Ishaq
- School of Food and Agriculture, University of Maine, Orono, Maine, USA 04469
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