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Smith E, Lewis A, Narine SS, Emery RJN. Unlocking Potentially Therapeutic Phytochemicals in Capadulla ( Doliocarpus dentatus) from Guyana Using Untargeted Mass Spectrometry-Based Metabolomics. Metabolites 2023; 13:1050. [PMID: 37887375 PMCID: PMC10608729 DOI: 10.3390/metabo13101050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 09/22/2023] [Accepted: 09/28/2023] [Indexed: 10/28/2023] Open
Abstract
Doliocarpus dentatus is thought to have a wide variety of therapeutic phytochemicals that allegedly improve libido and cure impotence. Although a few biomarkers have been identified with potential antinociceptive and cytotoxic properties, an untargeted mass spectrometry-based metabolomics approach has never been undertaken to identify therapeutic biofingerprints for conditions, such as erectile dysfunction, in men. This study executes a preliminary phytochemical screening of the woody vine of two ecotypes of D. dentatus with renowned differences in therapeutic potential for erectile dysfunction. Liquid chromatography-mass spectrometry-based metabolomics was used to screen for flavonoids, terpenoids, and other chemical classes found to contrast between red and white ecotypes. Among the metabolite chemodiversity found in the ecotype screens, using a combination of GNPS, MS-DIAL, and SIRIUS, approximately 847 compounds were annotated at levels 2 to 4, with the majority of compounds falling under lipid and lipid-like molecules, benzenoids and phenylpropanoids, and polyketides, indicative of the contributions of the flavonoid, shikimic acid, and terpenoid biosynthesis pathways. Despite the extensive annotation, we report on 138 tentative compound identifications of potentially therapeutic compounds, with 55 selected compounds at a level-2 annotation, and 22 statistically significant therapeutic biomarkers, the majority of which were polyphenols. Epicatechin methyl gallate, catechin gallate, and proanthocyanidin A2 had the greatest significant differences and were also relatively abundant among the red and white ecotypes. These putatively identified compounds reportedly act as antioxidants, neutralizing damaging free radicals, and lowering cell oxidative stress, thus aiding in potentially preventing cellular damage and promoting overall well-being, especially for treating erectile dysfunction (ED).
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Affiliation(s)
- Ewart Smith
- Environmental and Life Sciences Graduate Program, Trent University, Peterborough, ON K9J 0G2, Canada
| | - Ainsely Lewis
- Department of Biology, Trent University, Peterborough, ON K9J 0G2, Canada
| | - Suresh S. Narine
- Trent Centre for Biomaterials Research, Trent University, Peterborough, ON K9J 0G2, Canada
- Departments of Physics & Astronomy and Chemistry, Trent University, Peterborough, ON K9J 0G2, Canada
| | - R. J. Neil Emery
- Department of Biology, Trent University, Peterborough, ON K9J 0G2, Canada
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Wang Y, Liu K, Zhou Y, Chen Y, Jin C, Hu Y. Integrated Analysis of microRNA and RNA-Seq Reveals Phenolic Acid Secretion Metabolism in Continuous Cropping of Polygonatum odoratum. PLANTS (BASEL, SWITZERLAND) 2023; 12:943. [PMID: 36840290 PMCID: PMC9962977 DOI: 10.3390/plants12040943] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 02/08/2023] [Accepted: 02/16/2023] [Indexed: 06/18/2023]
Abstract
Polygonatum odoratum (Mill.) Druce is an essential Chinese herb, but continuous cropping (CC) often results in a serious root rot disease, reducing the yield and quality. Phenolic acids, released through plant root exudation, are typical autotoxic substances that easily cause root rot in CC. To better understand the phenolic acid biosynthesis of P. odoratum roots in response to CC, this study performed a combined microRNA (miRNA)-seq and RNA-seq analysis. The phenolic acid contents of the first cropping (FC) soil and CC soil were determined by HPLC analysis. The results showed that CC soils contained significantly higher levels of p-coumaric acid, phenylacetate, and caffeic acid than FC soil, except for cinnamic acid and sinapic acid. Transcriptome identification and miRNA sequencing revealed 15,788 differentially expressed genes (DEGs) and 142 differentially expressed miRNAs (DEMs) in roots from FC and CC plants. Among them, 28 DEGs and eight DEMs were involved in phenolic acid biosynthesis. Meanwhile, comparative transcriptome and microRNA-seq analysis demonstrated that eight miRNAs corresponding to five target DEGs related to phenolic acid synthesis were screened. Among them, ath-miR172a, ath-miR172c, novel_130, sbi-miR172f, and tcc-miR172d contributed to phenylalanine synthesis. Osa-miR528-5p and mtr-miR2673a were key miRNAs that regulate syringyl lignin biosynthesis. Nta-miR156f was closely related to the shikimate pathway. These results indicated that the key DEGs and DEMs involved in phenolic acid anabolism might play vital roles in phenolic acid secretion from roots of P. odoratum under the CC system. As a result of the study, we may have a better understanding of phenolic acid biosynthesis during CC of roots of P. odoratum.
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Affiliation(s)
- Yan Wang
- College of Agriculture and Biotechnology, Hunan University of Humanities, Science and Technology, Loudi 417000, China
- Hunan Province Key Laboratory of Plant Functional Genomics and Developmental Regulation, State Key Laboratory of Chemo/Biosensing and Chemometrics, National Center of Technology Innovation for Saline-Alkali Tolerant Rice, College of Biology, Hunan University, Changsha 410082, China
| | - Kaitai Liu
- College of Agriculture and Biotechnology, Hunan University of Humanities, Science and Technology, Loudi 417000, China
| | - Yunyun Zhou
- College of Agriculture and Biotechnology, Hunan University of Humanities, Science and Technology, Loudi 417000, China
| | - Yong Chen
- College of Agriculture and Biotechnology, Hunan University of Humanities, Science and Technology, Loudi 417000, China
| | - Chenzhong Jin
- College of Agriculture and Biotechnology, Hunan University of Humanities, Science and Technology, Loudi 417000, China
| | - Yihong Hu
- College of Agriculture and Biotechnology, Hunan University of Humanities, Science and Technology, Loudi 417000, China
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Suo H, Peng Z, Guo Z, Wu C, Liu J, Wang L, Xiao J, Li X. Deep eutectic solvent-based ultrasonic-assisted extraction of phenolic compounds from different potato genotypes: Comparison of free and bound phenolic profiles and antioxidant activity. Food Chem 2022; 388:133058. [PMID: 35486990 DOI: 10.1016/j.foodchem.2022.133058] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Revised: 04/14/2022] [Accepted: 04/21/2022] [Indexed: 11/04/2022]
Abstract
Potato phenolics exhibit health-promoting effects. Studies on bound phenolics are scarce. Here, significant differences in total phenolic content (TPC), total flavonoid content (TFC) and antioxidant activity in free and bound forms were found among 19 potato genotypes. 7 free and 24 bound phenolics were characterized and quantified using ultrahigh-performance liquid chromatograph-mass spectrometry, among which 22 bound phenolics are reported for the first time in potato. The number and content of identified free and bound phenolics changed considerably among the genotypes. Chlorogenic acid, cryptochlorogenic acid and rutin in free form, and benzoic and caftaric acids in bound form were predominant. Heijingang showed the highest free and total TPC and antioxidant activity, and the largest number of phenolic compounds, whereas S17-1-1 contained the highest free and total TFC and Longshu 7 contained the highest bound phenolic content. Cluster analysis segregated the genotypes into 6 groups. This study provides useful information on benefits of potato in human health.
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Affiliation(s)
- Haicui Suo
- Crops Research Institute, Guangdong Academy of Agricultural Sciences/Guangdong Provincial Key Laboratory of Crop Genetic Improvement, Guangzhou 510640, Guangdong, China
| | - Ziting Peng
- State Key Laboratory of Marine Resource Utilization in South China Sea/Engineering Research Center of Utilization of Tropical Polysaccharide Resources, Ministry of Education/Key Laboratory of Food Nutrition and Functional Food of Hainan Province, College of Food Science and Engineering, Hainan University, Haikou 570228, China
| | - Zhiqiang Guo
- State Key Laboratory of Marine Resource Utilization in South China Sea/Engineering Research Center of Utilization of Tropical Polysaccharide Resources, Ministry of Education/Key Laboratory of Food Nutrition and Functional Food of Hainan Province, College of Food Science and Engineering, Hainan University, Haikou 570228, China
| | - Chengjunhong Wu
- State Key Laboratory of Marine Resource Utilization in South China Sea/Engineering Research Center of Utilization of Tropical Polysaccharide Resources, Ministry of Education/Key Laboratory of Food Nutrition and Functional Food of Hainan Province, College of Food Science and Engineering, Hainan University, Haikou 570228, China
| | - Jitao Liu
- Crops Research Institute, Guangdong Academy of Agricultural Sciences/Guangdong Provincial Key Laboratory of Crop Genetic Improvement, Guangzhou 510640, Guangdong, China
| | - Li Wang
- Crops Research Institute, Guangdong Academy of Agricultural Sciences/Guangdong Provincial Key Laboratory of Crop Genetic Improvement, Guangzhou 510640, Guangdong, China
| | - Juan Xiao
- State Key Laboratory of Marine Resource Utilization in South China Sea/Engineering Research Center of Utilization of Tropical Polysaccharide Resources, Ministry of Education/Key Laboratory of Food Nutrition and Functional Food of Hainan Province, College of Food Science and Engineering, Hainan University, Haikou 570228, China.
| | - Xiaobo Li
- Crops Research Institute, Guangdong Academy of Agricultural Sciences/Guangdong Provincial Key Laboratory of Crop Genetic Improvement, Guangzhou 510640, Guangdong, China.
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Zhang X, Wang G, Xue H, Zhang J, Wang Q, Zhang Z, Zhang B. Metabolite Profile of Xylem Sap in Cotton Seedlings Is Changed by K Deficiency. FRONTIERS IN PLANT SCIENCE 2020; 11:592591. [PMID: 33362821 PMCID: PMC7758293 DOI: 10.3389/fpls.2020.592591] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Accepted: 10/14/2020] [Indexed: 06/12/2023]
Abstract
Xylem sap, belonging to the plant apoplast, not only provides plant tissues with inorganic and organic substances but also facilitates communication between the roots and the leaves and coordinates their development. This study investigated the effects of potassium (K) deficiency on the morphology and the physiology of cotton seedlings as well as pH, mineral nutrient contents, and metabolites of xylem sap. In particular, we compared changes in root-shoot communication under low K (LK) and normal K (NK, control) levels. Compared to control, LK stress significantly decreased seedling biomass (leaf, stem, and root dry weight; stem and root length; root surface area and root volume) and the levels of K, Na (sodium), Mg (magnesium), Fe (iron), and Zn (zinc) in xylem sap. A total of 82 metabolites in sap analyzed by high-performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS) showed significant differences between the two conditions; among these, 38 were up-regulated more than 2-fold, while the others were down-regulated less than 0.5-fold. In particular, several metabolites found in the cell membrane including three cholines (glycerophosphatecholine, 2-hexenylcholine, and caproylcholine) and desglucocoroloside and others such as malondialdehyde, α-amino acids and derivatives, sucrose, and sugar alcohol significantly increased under LK stress, indicating that cell membranes were damaged and protein metabolism was abnormal. It is worth noting that glycerophosphocholine was up-regulated 29-fold under LK stress, indicating that it can be used as an important signal of root-shoot communication. Furthermore, in pathway analyses, 26 metabolites were matched to Kyoto Encyclopedia of Genes and Genomes (KEGG) pathways; L-aspartic acid, which was associated with 10 KEGG pathways, was the most involved metabolite. Overall, K deficiency reduced the antioxidant capacity of cotton seedlings and led to a metabolic disorder including elevated levels of primary metabolites and inhibited production of secondary metabolites. This eventually resulted in decreased biomass of cotton seedlings under LK stress. This study lays a solid foundation for further research on targeted metabolites and signal substances in the xylem sap of cotton plants exposed to K deficiency.
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Affiliation(s)
- Xin Zhang
- Henan Collaborative Innovation Centre of Modern Biological Breeding, Henan Institute of Science and Technology, Xinxiang, China
| | - Guo Wang
- Henan Collaborative Innovation Centre of Modern Biological Breeding, Henan Institute of Science and Technology, Xinxiang, China
| | - Huiyun Xue
- Henan Collaborative Innovation Centre of Modern Biological Breeding, Henan Institute of Science and Technology, Xinxiang, China
| | - Jinbao Zhang
- Henan Collaborative Innovation Centre of Modern Biological Breeding, Henan Institute of Science and Technology, Xinxiang, China
| | - Qinglian Wang
- Henan Collaborative Innovation Centre of Modern Biological Breeding, Henan Institute of Science and Technology, Xinxiang, China
| | - Zhiyong Zhang
- Henan Collaborative Innovation Centre of Modern Biological Breeding, Henan Institute of Science and Technology, Xinxiang, China
| | - Baohong Zhang
- Department of Biology, East Carolina University, Greenville, NC, United States
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The Effect of Degree of Milling on the Nutraceutical Content in Ecofriendly and Conventional Rice ( Oryza sativa L.). Foods 2020; 9:foods9091297. [PMID: 32942566 PMCID: PMC7555660 DOI: 10.3390/foods9091297] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Revised: 09/04/2020] [Accepted: 09/11/2020] [Indexed: 12/21/2022] Open
Abstract
We investigated the effects of the type of rice and degree of milling (DOM) on the nutraceutical content and antioxidant activity of rice (Oryza sativa L.). The fatty acid (FA), vitamin E homolog, and phenolic contents in organic (OR), pesticide-free (PFR), and conventional rice (CR) decreased significantly with an increase in the DOM of rice grains, particularly for a DOM of 7 and 9 (p < 0.05). The 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging activity also decreased with the DOM; particularly, this activity decreased significantly, by approximately 60%, in rice grains with a DOM between 7 and 11, as compared to that of brown rice (p < 0.05). α-Tocopherol (r = 0.854) and p-coumaric acid (r = 0.501) showed the strongest correlation with DPPH activity in each chemical group. Stepwise discriminant analysis enabled the correct original and cross-validated classification of 87.0% and 81.5% of rice types, respectively. Additionally, the original and cross-validated classification of rice DOM levels showed that, overall, 93.8% and 92.6% of rice samples were correctly classified. Our findings reveal variations in the nutraceutical levels and antioxidant activities in rice grains based on the rice type and DOM, which can help improve the nutritional evaluation of human-health-promoting rice grains.
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Li Z, Chen J, Gao X, Zhang T, Zheng W, Wei G, Huang Y, Qi J, Zhang Y, Ma P. Identification of components and metabolites in plasma of type 2 diabetic rat after oral administration of Jiao-Tai-Wan using ultra-performance liquid chromatography/quadrupole time-of-flight mass spectrometry. J Sep Sci 2020; 43:2690-2707. [PMID: 32246812 DOI: 10.1002/jssc.201901040] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Revised: 03/12/2020] [Accepted: 03/27/2020] [Indexed: 12/13/2022]
Abstract
Jiao-Tai-Wan, which is composed of Coptis Rhizoma and Cinnamon Cortex, has been recently used to treat type 2 diabetes. Owing to lack of data on its prototypes and metabolites, elucidation of the pharmacological and clinically safe levels of this formula has been significantly hindered. To screen more potential bioactive components of Jiao-Tai-Wan, we identified its multiple prototypes and metabolites in the plasma of type 2 diabetic rats by ultra high performance liquid chromatography/quadrupole-time-of-flight mass spectrometry. A total of 47 compounds were identified in the plasma of type 2 diabetic rats, including 22 prototypes and 25 metabolites, with alkaloids constituting the majority of the absorbed prototype components. In addition, this is the first study to detect vanillic acid, gallic acid, chlorogenic acid, protocatechuic acid, 2-hydroxycinnamic acid, 3-hydroxycinnamic acid, 4-hydroxycinnamic acid, and 2-methoxy cinnamic acid after oral administration of Jiao-Tai-Wan. The prototypes from Jiao-Tai-Wan were extensively metabolized by demethylation, hydroxylation, and reduction in phase Ⅰ metabolic reactions and by methylation or conjugation of glucuronide or sulfate in phase Ⅱ reactions. This is the first systematic study on the components and metabolic profiles of Jiao-Tai-Wan in vivo. This study provides a useful chemical basis for further pharmacological research and clinical application of Jiao-Tai-Wan.
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Affiliation(s)
- Zhihui Li
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, P. R. China
| | - Jianhua Chen
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, P. R. China
| | - Xing Gao
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, P. R. China
| | - Ting Zhang
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, P. R. China
| | - Wei Zheng
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, P. R. China
| | - Guijie Wei
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, P. R. China
| | - Yunfang Huang
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, P. R. China
| | - Jing Qi
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, P. R. China
| | - Yujie Zhang
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, P. R. China
| | - Pengkai Ma
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, P. R. China
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