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Lee YJ, Lin CM, Chang YC, Yang MY, Wang CJ, Hsu LS. Nelumbo nucifera leaves extract ameliorated scopolamine-induced cognition impairment via enhanced adult hippocampus neurogenesis. Environ Toxicol 2024; 39:3198-3210. [PMID: 38351887 DOI: 10.1002/tox.24175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2023] [Revised: 01/02/2024] [Accepted: 01/18/2024] [Indexed: 04/17/2024]
Abstract
In this presentation, we explored the molecular mechanisms of N. nucifera leaf water extracts (NLWEs) and polyphenol extract (NLPE) on scopolamine-induced cell apoptosis and cognition defects. The administration of NLWE and NLPE did not alter the body weight and serum biomarker rs and significantly ameliorated scopolamine-induced cognition impairment according to Y-maze test analysis. In mice, treatment with scopolamine disrupted normal histoarchitecture in the hippocampus, whereas the administration of NLWE and NLPE reversed the phenomenon. Western blot analysis revealed that scopolamine mitigated the expression of doublecortin (DCX), nestin, and NeuN, and cotreatment with NLWE or NLPE significantly recovered the expression of these proteins. NLWE and NLPE upregulated DCX and NeuN expression in the hippocampus region, as evidenced by immunohistochemical staining analysis of scopolamine-treated mice. NLWE and NLPE obviously elevated brain-derived neurotrophic factor (BDNF) and enhanced its downstream proteins activity. NLWE and NLPE attenuated scopolamine-induced apoptosis by reducing Bax and increased Bcl-2 expression. In addition, scopolamine also triggered apoptosis in human neuroblastoma SH-SY5Y cells whereas co-treatment with NLWE or quercetin-3-glucuronide (Q3G) reversed the phenomenon. NLWE or Q3G enhanced Bcl-2 and reduced Bax expression in the presence of scopolamine in SH-SY5Y cells. NLWE or Q3G recovered the inhibitory effects of scopolamine on neurogenesis and BDNF signals in SH-SY5Y cells. Overall, our results revealed that N. nucifera leaf extracts and Q3G promoted adult hippocampus neurogenesis and prevented apoptosis to mitigate scopolamine-induced cognition dysfunction through the regulation of BDNF signaling pathway.
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Affiliation(s)
- Yi-Ju Lee
- Department of Pathology, Chung Shan Medical University Hospital, Taichung, Taiwan
- Department of Pathology, Chung Shan Medical University, Taichung, Taiwan
| | - Chang-Mao Lin
- Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan
| | - Yun-Ching Chang
- Department of Health Industry Technology Management, Chung Shan Medical University, Taichung, Taiwan
- Department of Medical Research, Chung Shan Medical University Hospital, Taichung, Taiwan
| | - Mon-Yuan Yang
- Department of Health Industry Technology Management, Chung Shan Medical University, Taichung, Taiwan
| | - Chau-Jong Wang
- Department of Health Industry Technology Management, Chung Shan Medical University, Taichung, Taiwan
- Department of Medical Research, Chung Shan Medical University Hospital, Taichung, Taiwan
| | - Li-Sung Hsu
- Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan
- Department of Medical Research, Chung Shan Medical University Hospital, Taichung, Taiwan
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Sahu B, Sahu M, Sahu M, Yadav M, Sahu R, Sahu C. An Updated Review on Nelumbo Nucifera Gaertn: Chemical Composition, Nutritional Value and Pharmacological Activities. Chem Biodivers 2024; 21:e202301493. [PMID: 38327030 DOI: 10.1002/cbdv.202301493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2023] [Revised: 02/07/2024] [Accepted: 02/07/2024] [Indexed: 02/09/2024]
Abstract
Nelumbo nucifera Gaertn is a recognised herbal plant in ancient medical sciences. Each portion of the plant leaf, flower, seed and rhizome is utilised for nutritional and medicinal purposes. The chemical compositions like phenol, alkaloids, glycoside, terpenoids and steroids have been isolated. The plant contains various nutritional values like lipids, proteins, amino acids, minerals, carbohydrates, and fatty acids. Traditional medicine confirms that the phytochemicals of plants give significant benefits to the treatment of various diseases such as leukoderma, smallpox, dysentery, haematemesis, coughing, haemorrhage, metrorrhagia, haematuria, fever, hyperlipidaemia, cholera, hepatopathy and hyperdipsia. To verify the traditional claims, researchers have conducted scientific biological in vivo and in vitro screenings, which have exhibited that the plant keeps various notable pharmacological activities such as anticancer, hepatoprotective, antioxidant, antiviral, hypolipidemic, anti-obesity, antipyretic, hypoglycaemic, antifungal, anti-inflammatory and antibacterial activities. This review, summaries the nutritional composition, chemical constituents and biological activities substantiated by the researchers done in vivo and in vitro.
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Affiliation(s)
- Bhaskar Sahu
- Columbia College of Pharmacy, Raipur, Chhattisgarh, 492001, India
| | - Mahendra Sahu
- Columbia College of Pharmacy, Raipur, Chhattisgarh, 492001, India
| | - Mukesh Sahu
- Columbia College of Pharmacy, Raipur, Chhattisgarh, 492001, India
| | - Megha Yadav
- Columbia College of Pharmacy, Raipur, Chhattisgarh, 492001, India
| | - Rakesh Sahu
- Sanjivani Institute of Pharmacy, Bilaspur, Chhattisgarh, 497101, India
| | - Chandana Sahu
- Columbia College of Nursing, Raipur, Chhattisgarh, 492001, India
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Zhang P, Li J, Shi J, Cheng Z, Wu T. Structurally Diverse Bisbenzylisoquinoline Alkaloids with Antiadipogenic Activity through PPARγ Downregulation from the Embryo of Nelumbo nucifera Seeds. J Nat Prod 2024; 87:1013-1022. [PMID: 38483204 PMCID: PMC11061834 DOI: 10.1021/acs.jnatprod.3c01290] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2023] [Revised: 02/28/2024] [Accepted: 02/29/2024] [Indexed: 05/03/2024]
Abstract
Six undescribed and six known bisbenzylisoquinoline alkaloids were isolated from the embryo of Nelumbo nucifera seeds. Their structures were fully characterized by a combination of 1H, 13C NMR, 2D NMR, and HRESIMS analyses, as well as ECD computational calculations. The antiadipogenic activity of 11 alkaloids was observed in a dose-responsive manner, leading to the suppression of lipid accumulation in 3T3-L1 cells. Luciferase assay and Western blot analysis showed that the active alkaloids downregulated peroxisome proliferator-activated receptor gamma (PPARγ, a key antiadipogenic receptor) expression in 3T3-L1 cells. Analysis of the structure-activity relationship unveiled that a 1R,1'S configuration in bisbenzylisoquinoline alkaloids led to a notable enhancement in antiadipogenic activity. The resistance level against lipid accumulation highlighted a consistent pattern with the suppressive effect on the PPARγ expression. These activity results indicate that alkaloids from the embryo of N. nucifera seeds have a potential of antiobesity effects through PPARγ downregulation.
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Affiliation(s)
- Peiliang Zhang
- Key
Laboratory of Standardization of Chinese Medicines of Ministry of
Education, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
- College
of Pharmacy, Anhui University of Chinese
Medicine, Hefei, Anhui 230012, China
| | - Jiadong Li
- Key
Laboratory of Standardization of Chinese Medicines of Ministry of
Education, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Jiyao Shi
- Key
Laboratory of Standardization of Chinese Medicines of Ministry of
Education, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Zhihong Cheng
- Department
of Natural Medicine, School of Pharmacy, Fudan University, Shanghai 201203, China
| | - Tao Wu
- Key
Laboratory of Standardization of Chinese Medicines of Ministry of
Education, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
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Dhull SB, Chandak A, Chawla P, Goksen G, Rose PK, Rani J. Modifications of native lotus (Nelumbo nucifera G.) rhizome starch and its overall characterization: A review. Int J Biol Macromol 2023; 253:127543. [PMID: 37866555 DOI: 10.1016/j.ijbiomac.2023.127543] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 10/11/2023] [Accepted: 10/17/2023] [Indexed: 10/24/2023]
Abstract
Lotus (Nelumbo nucifera G.) rhizomes are an under-utilized and sustainable starch source that constitutes up to 20 % starch. The review mainly focused on the extraction methods of starch, the chemical composition of LRS, and techno-functional characteristics such as swelling power, solubility, in vitro digestibility, pasting property, and gelatinization is highlighted in LRS review. Lotus rhizome starch (LRS) is also used as a water retention agent, thickening, gelling, stabilizing, and filling in food and non-food applications. Native starch has limited functional characteristics in food applications so by modifying the starch, functional characteristics are enhanced. Single and dual treatment processes are available to enhance microstructural properties, resistant starch, techno-functional, morphological, and, film-forming properties. Compared with other starch sources, there is a lack of systematic information on the LRS. Many industries are interested in developing food products based on starch such as nanoparticles, hydrogels, edible films, and many others. Additionally, there are several recommendations to improve the applications in the food industry. Finally, we provide an outlook on the future possibility of LRS.
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Affiliation(s)
- Sanju Bala Dhull
- Department of Food Science and Technology, Chaudhary Devi Lal University, Sirsa, Haryana 125055, India.
| | - Ankita Chandak
- Department of Food Science and Technology, Chaudhary Devi Lal University, Sirsa, Haryana 125055, India.
| | - Prince Chawla
- Department of Food Technology and Nutrition, Lovely Professional University, Phagwara, Punjab 144411, India
| | - Gulden Goksen
- Department of Food Technology, Vocational School of Technical Sciences at Mersin Tarsus Organized Industrial zone, Tarsus University, 33100 Mersin, Turkey
| | - Pawan Kumar Rose
- Department of Energy and Environmental Sciences, Chaudhary Devi Lal University, Sirsa, Haryana 125055, India
| | - Jyoti Rani
- Department of Botany, Chaudhary Devi Lal University, Sirsa, Haryana 125055, India
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Pyne ME, Gold ND, Martin VJJ. Pathway elucidation and microbial synthesis of proaporphine and bis-benzylisoquinoline alkaloids from sacred lotus (Nelumbo nucifera). Metab Eng 2023; 77:162-173. [PMID: 37004909 DOI: 10.1016/j.ymben.2023.03.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 03/07/2023] [Accepted: 03/25/2023] [Indexed: 04/03/2023]
Abstract
Sacred lotus (Nelumbo nucifera) has been utilized as a food, medicine, and spiritual symbol for nearly 3000 years. The medicinal properties of lotus are largely attributed to its unique profile of benzylisoquinoline alkaloids (BIAs), which includes potential anti-cancer, anti-malarial and anti-arrhythmic compounds. BIA biosynthesis in sacred lotus differs markedly from that of opium poppy and other members of the Ranunculales, most notably in an abundance of BIAs possessing the (R)-stereochemical configuration and the absence of reticuline, a major branchpoint intermediate in most BIA producers. Owing to these unique metabolic features and the pharmacological potential of lotus, we set out to elucidate the BIA biosynthesis network in N. nucifera. Here we show that lotus CYP80G (NnCYP80G) and a superior ortholog from Peruvian nutmeg (Laurelia sempervirens; LsCYP80G) stereospecifically convert (R)-N-methylcoclaurine to the proaporphine alkaloid glaziovine, which is subsequently methylated to pronuciferine, the presumed precursor to nuciferine. While sacred lotus employs a dedicated (R)-route to aporphine alkaloids from (R)-norcoclaurine, we implemented an artificial stereochemical inversion approach to flip the stereochemistry of the core BIA pathway. Exploiting the unique substrate specificity of dehydroreticuline synthase from common poppy (Papaver rhoeas) and pairing it with dehydroreticuline reductase enabled de novo synthesis of (R)-N-methylcoclaurine from (S)-norcoclaurine and its subsequent conversion to pronuciferine. We leveraged our stereochemical inversion approach to also elucidate the role of NnCYP80A in sacred lotus metabolism, which we show catalyzes the stereospecific formation of the bis-BIA nelumboferine. Screening our collection of 66 plant O-methyltransferases enabled conversion of nelumboferine to liensinine, a potential anti-cancer bis-BIA from sacred lotus. Our work highlights the unique benzylisoquinoline metabolism of N. nucifera and enables the targeted overproduction of potential lotus pharmaceuticals using engineered microbial systems.
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Affiliation(s)
- Michael E Pyne
- Department of Biology, Concordia University, Montréal, Québec, Canada; Centre for Applied Synthetic Biology, Concordia University, Montréal, Québec, Canada.
| | - Nicholas D Gold
- Centre for Applied Synthetic Biology, Concordia University, Montréal, Québec, Canada; Concordia Genome Foundry, Concordia University, Montréal, Québec, Canada
| | - Vincent J J Martin
- Department of Biology, Concordia University, Montréal, Québec, Canada; Centre for Applied Synthetic Biology, Concordia University, Montréal, Québec, Canada.
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Liu X, Du F, Sun L, Li J, Chen S, Li N, Chang Y, Cui J, Chen W, Yao D. Anthocyanin metabolism in Nelumbo: translational and post-translational regulation control transcription. BMC Plant Biol 2023; 23:61. [PMID: 36710356 PMCID: PMC9885672 DOI: 10.1186/s12870-023-04068-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Accepted: 01/16/2023] [Indexed: 06/18/2023]
Abstract
BACKGROUND Lotus (Nelumbo Adans.) is used as an herbal medicine and the flowers are a source of natural flavonoids. 'Da Sajin', which was firstly found in the plateau area, is a natural mutant in flower color with red streamers dyeing around white petals. RESULTS The LC-MS-MS results showed that eight anthocyanin compounds, including cyanidin 3-O-glucoside, cyanidin 3-O-galactoside, malvidin 3-O-galactoside, and malvidin 3-O-glucoside, were differentially enriched in red-pigmented tissues of the petals, whereas most of these metabolites were undetected in white tissues of the petals. Transcriptome profiling indicated that the relative high expression levels of structural genes, such as NnPAL, NnF3H, and NnANS, was inconsistent with the low anthocyanin concentration in white tissues. Members of the NnMYB and NnbHLH transcription factor families were presumed to play a role in the metabolic flux in the anthocyanin and proanthocyanidin biosynthetic pathway. The expression model of translational initiation factor, ribosomal proteins and SKP1-CUL1-F-box protein complex related genes suggested an important role for translational and post-translational network in anthocyanin biosynthesis. In addition, pathway analysis indicated that light reaction or photo destruction might be an important external cause for floral color determination in lotus. CONCLUSIONS In this study, it is supposed that the natural lotus mutant 'Da Sajin' may have originated from a red-flowered ancestor. Partial loss of anthocyanin pigments in petals may result from metabolic disorder caused by light destruction. This disorder is mainly regulated at post translation and translation level, resulting in a non-inherited phenotype. These results contribute to an improved understanding of anthocyanin metabolism in lotus, and indicate that the translational and post-translational regulatory network determines the metabolic flux of anthocyanins and proanthocyanidins under specific environmental conditions.
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Affiliation(s)
- Xiaojing Liu
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources/Jiangsu Engineering Research Center of Aquatic Plant Resources and Water Environment Remediation, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing, 210014, China
| | - Fengfeng Du
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources/Jiangsu Engineering Research Center of Aquatic Plant Resources and Water Environment Remediation, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing, 210014, China
| | - Linhe Sun
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources/Jiangsu Engineering Research Center of Aquatic Plant Resources and Water Environment Remediation, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing, 210014, China
| | - Jinfeng Li
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources/Jiangsu Engineering Research Center of Aquatic Plant Resources and Water Environment Remediation, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing, 210014, China
| | - Shaozhou Chen
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources/Jiangsu Engineering Research Center of Aquatic Plant Resources and Water Environment Remediation, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing, 210014, China
| | - Naiwei Li
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources/Jiangsu Engineering Research Center of Aquatic Plant Resources and Water Environment Remediation, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing, 210014, China
| | - Yajun Chang
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources/Jiangsu Engineering Research Center of Aquatic Plant Resources and Water Environment Remediation, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing, 210014, China
| | - Jian Cui
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources/Jiangsu Engineering Research Center of Aquatic Plant Resources and Water Environment Remediation, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing, 210014, China
| | - Wen Chen
- Collaborative Innovation Center for Efficient and Green Production of Agriculture in Mountainous Areas of Zhejiang Province, College of Horticulture Science, Zhejiang A&F University, Zhejiang, 311300, Hangzhou, China
| | - Dongrui Yao
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources/Jiangsu Engineering Research Center of Aquatic Plant Resources and Water Environment Remediation, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing, 210014, China.
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Xiang J, Raka RN, Zhang L, Xiao J, Wu H, Ding Z. Inhibition of Three Diabetes-Related Enzymes by Procyanidins from Lotus (Nelumbo nucifera Gaertn.) Seedpods. Plant Foods Hum Nutr 2022; 77:390-398. [PMID: 35781857 DOI: 10.1007/s11130-022-00987-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 06/16/2022] [Indexed: 06/15/2023]
Abstract
The inhibitory effects of procyanidins from lotus (Nelumbo nucifera Gaertn.) seedpods on the activities of α-amylase, α-glucosidase and protein tyrosine phosphatase 1B (PTP1B), were studied and compared with those of (+)-catechin, (-)-epicatechin, epigallocatechin gallate (EGCG), procyanidin dimer B2 and trimer C1. The results showed that Lotus procyanidin extract (LPE) significantly inhibited α-amylase, α-glucosidase and PTP1B with IC50 values of 5.5, 1.0, and 0.33 μg/mL, respectively. The inhibition increased with the degree of polymerization and the existence of galloyl or gallocatechin units. Kinetic analysis showed that LPE inhibited α-glucosidase activity in a mixed competitive and noncompetitive mode. Fluorescence quenching revealed that α-glucosidase interacted with LPE or EGCG in an apparent static mode, or the model of "sphere of action". The apparent static (K) and bimolecular (kq) constants were 4375 M-1 and 4.375 × 1011 M-1 s-1, respectively, for LPE and 1195 M-1 and 1.195 × 1011 M-1 s-1, respectively, for EGCG. Molecular docking analysis provided further information on the interactions of (+)-catechin, (-)-epicatechin, EGCG, B2 and C1 with α-glucosidase. It is hypothesized that LPE may bind to multiple sites of the enzyme through hydrogen bonding and hydrophobic interactions, leading to conformational changes in the enzyme and thus inhibiting its activity. These findings first elucidate the inhibitory effect of LPE on diabetes-related enzymes and highlight the usefulness of LPE as a dietary supplement for the prophylaxis of diabetes.
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Affiliation(s)
- Jie Xiang
- School of Food and Health, Beijing Technology & Business University (BTBU), Beijing, 100048, China
| | - Rifat Nowshin Raka
- School of Food and Health, Beijing Technology & Business University (BTBU), Beijing, 100048, China
| | - Luocheng Zhang
- School of Food and Health, Beijing Technology & Business University (BTBU), Beijing, 100048, China
| | - Junsong Xiao
- School of Food and Health, Beijing Technology & Business University (BTBU), Beijing, 100048, China.
| | - Hua Wu
- College of Chemistry and Materials Engineering, Beijing Technology & Business University (BTBU), Beijing, 100048, China
| | - Zhiqian Ding
- School of Food and Health, Beijing Technology & Business University (BTBU), Beijing, 100048, China
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Abstract
Lotus leaf (Heye), the dry foliage of Nelumbo nucifera Gaertn, has been valuable as a dietary herbal medicine for thousands of years. Phytochemical studies indicated that alkaloids and flavonoids are the main components of Heye. Polysaccharides, terpenes, and amino acids are also active ingredients. The drug properties of Heye are mild and bitter. Meridian tropism is mainly distributed in the liver, spleen, and stomach meridian. In the Traditional Chinese medicine (TCM) theoretical system, it is in many formulas for the therapy of various symptoms, including wasting-thirst induced by summer heat, diarrhea caused by summer heat-dampness and spleen deficiency, hematochezia, flooding and spotting, among others. Nowadays, the extracts and active components of Heye demonstrate multiple bioactivities, for instance anti-obesity, anti-inflammatory, anti-oxidant, cardiovascular protective, anticancer, hepatoprotective, hypoglycemic, antiviral, antimicrobial, as well as hemostatic activities. This review will provide an overview of Heye serving as a typical plant with functions of both medicine and food, including its practical applications in terms of TCM and healthy diet, phytochemistry, pharmacological activity, together with its toxicity. Besides, the new points and prospects of Heye in the overview are also outlined straightforwardly.
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Affiliation(s)
- Haoxue Zheng
- Department of Pharmacy, Hubei University of Chinese Medicine, Wuhan 430065, Hubei, P. R. China
| | - Lintao Han
- Department of Pharmacy, Hubei University of Chinese Medicine, Wuhan 430065, Hubei, P. R. China
| | - Wenfeng Shi
- Department of Pharmacy, Hubei University of Chinese Medicine, Wuhan 430065, Hubei, P. R. China
| | - Xiaoping Fang
- Department of Pharmacy, Hubei University of Chinese Medicine, Wuhan 430065, Hubei, P. R. China
| | - Yi Hong
- Department of Pharmacy, Hubei University of Chinese Medicine, Wuhan 430065, Hubei, P. R. China
| | - Yan Cao
- Department of Pharmacy, Hubei University of Chinese Medicine, Wuhan 430065, Hubei, P. R. China
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Tungmunnithum D, Drouet S, Hano C. Validation of a High-Performance Liquid Chromatography with Photodiode Array Detection Method for the Separation and Quantification of Antioxidant and Skin Anti-Aging Flavonoids from Nelumbo nucifera Gaertn. Stamen Extract. Molecules 2022; 27:molecules27031102. [PMID: 35164366 PMCID: PMC8838782 DOI: 10.3390/molecules27031102] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Revised: 01/30/2022] [Accepted: 02/04/2022] [Indexed: 12/12/2022]
Abstract
Nelumbo nucifera Gaertn., or the so-called sacred lotus, is a useful aquatic plant in the Nelumbonaceae family that has long been used to prepare teas, traditional medicines as well as foods. Many studies reported on the phytochemicals and biological activities of its leaves and seeds. However, to date, only few studies were conducted on its stamen, which is the most important ingredient for herbal medicines, teas and other phytopharmaceutical products. Thus, this present study focuses on the following: (1) the application of high-performance liquid chromatography with photodiode array detection for a validated separation and quantification of flavonoids from stamen; (2) the Nelumbo nucifera stamen’s in vitro and in cellulo antioxidant activities; as well as (3) its potential regarding the inhibition of skin aging enzymes for cosmetic applications. The optimal separation of the main flavonoids from the stamen ethanolic extract was effectively achieved using a core-shell column. The results indicated that stamen ethanolic extract has higher concentration of in vitro and in cellulo antioxidant flavonoids than other floral components. Stamen ethanolic extract showed the highest protective effect against reactive oxygen/nitrogen species formation, as confirmed by cellular antioxidant assay using a yeast model. The evaluation of potential skin anti-aging action showed that the stamen extract has higher potential to inhibit tyrosinase and collagenase compared with its whole flower. These current findings are the first report to suggest the possibility to employ N. nucifera stamen ethanolic extract as a tyrosinase and collagenase inhibitor in cosmetic applications, as well as the utility of the current separation method.
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Affiliation(s)
- Duangjai Tungmunnithum
- Department of Pharmaceutical Botany, Faculty of Pharmacy, Mahidol University, Bangkok 10400, Thailand
- Laboratoire de Biologie des Ligneux et des Grandes Cultures, INRAE USC1328, Campus Eure et Loir, Orleans University, 28000 Chartres, France;
- Le Studium Institue for Advanced Studies, 1 Rue Dupanloup, 45000 Orléans, France
- Correspondence: (D.T.); (C.H.)
| | - Samantha Drouet
- Laboratoire de Biologie des Ligneux et des Grandes Cultures, INRAE USC1328, Campus Eure et Loir, Orleans University, 28000 Chartres, France;
| | - Christophe Hano
- Laboratoire de Biologie des Ligneux et des Grandes Cultures, INRAE USC1328, Campus Eure et Loir, Orleans University, 28000 Chartres, France;
- Le Studium Institue for Advanced Studies, 1 Rue Dupanloup, 45000 Orléans, France
- Correspondence: (D.T.); (C.H.)
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10
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Zhou H, Hou T, Gao Z, Guo X, Wang C, Wang J, Liu Y, Liang X. Discovery of eight alkaloids with D1 and D2 antagonist activity in leaves of Nelumbo nucifera Gaertn. Using FLIPR assays. J Ethnopharmacol 2021; 278:114335. [PMID: 34139281 DOI: 10.1016/j.jep.2021.114335] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Revised: 06/11/2021] [Accepted: 06/11/2021] [Indexed: 06/12/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Dopamine receptors are long-standing primary targets in the treatment of mental diseases and there is growing evidence that suggests relationships between obesity and the dopamine system, especially dopamine D1 and D2 receptors. Leaves of Nelumbo nucifera Gaertn. (lotus leaves) have been medically used for helping long-term maintenance of weight loss. Whether and how components of lotus leaves function through the dopamine receptors remains unclear. AIM OF THE STUDY This work aimed to discover dopamine receptor-active alkaloids isolated from the lotus leaves, to evaluate their potencies and to analyze their structure activity relationship. MATERIALS AND METHODS Dried lotus leaves were prepared and total extract was divided into alkaloids and flavones. Eight alkaloids were separated and characterized by a combination of high-performance liquid chromatography, quadrupole time-of-flight mass spectrometry and nuclear magnetic resonance, and assayed by a fluorometric imaging plate reader platform. Human embryonic kidney 239 cell lines expressing dopamine D1, D2 and serotonin 2A (5-HT2A) receptors, respectively, were cultured and used in the assay. RESULTS Alkaloids in the lotus leaves were the bioactive phytochemicals and inhibited dopamine from accessing the D1 and D2 receptors. All eight compounds functioned as D1-receptor antagonists and except N-nornuciferine, seven alkaloids functioned as D2-receptor antagonists. (S)-coclaurine and (R)-coclaurine are optical isomers and antagonized both D1 and D2 with equivalent potencies, suggesting that the optical rotation of the methylene linker in the monobenzyl isoquinoline backbone did not influence their activity. Among the eight alkaloids, O-nornuciferine was the potent antagonist to both receptors (the lowest IC50 values, D1: 2.09 ± 0.65 μM and D2: 1.14 ± 0.10 μM) while N-nornuciferine was found to be the least potent as it moderately antagonized D1 and was inactive on D2. O-nornuciferine was also a 5-HT2A antagonist (IC50~20 μM) while N-nornuciferine had no activity. These hinted the importance of a methyl group attached to the nitrogen atom in the aporphine backbone. Armepavine showed a nearly 10-fold selectivity to D2. CONCLUSIONS In this work, eight alkaloids were isolated from the leaves of Nelumbo nucifera Gaertn. and assayed on the D1 and D2 receptors. They were D1/D2 antagonists with IC50 values in the mid- to low-micromolar range and O-nornuciferine was the most potent alkaloid among the eight. This family of alkaloids was biochemically evaluated on the dopamine receptors by the same platform for the first time.
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Affiliation(s)
- Han Zhou
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
| | - Tao Hou
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China; DICP-CMC Innovation Institute of Medicine, Taizhou, 225300, China
| | - Zhenhua Gao
- Department of Chemistry and Environmental Engineering, Hubei Minzu University, Enshi, 445000, China
| | - Xiujie Guo
- DICP-CMC Innovation Institute of Medicine, Taizhou, 225300, China
| | - Chaoran Wang
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China; DICP-CMC Innovation Institute of Medicine, Taizhou, 225300, China.
| | - Jixia Wang
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China.
| | - Yanfang Liu
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
| | - Xinmiao Liang
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
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Tan SJ, Lee CK, Gan CY, Olalere OA. Statistical Optimization of Flavonoid and Antioxidant Recovery from Macerated Chinese and Malaysian Lotus Root ( Nelumbo nucifera) Using Response Surface Methodology. Molecules 2021; 26:molecules26072014. [PMID: 33916148 PMCID: PMC8037996 DOI: 10.3390/molecules26072014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Revised: 03/25/2021] [Accepted: 03/26/2021] [Indexed: 12/03/2022] Open
Abstract
In this study, the combination of parameters required for optimal extraction of anti-oxidative components from the Chinese lotus (CLR) and Malaysian lotus (MLR) roots were carefully investigated. Box–Behnken design was employed to optimize the pH (X1: 2–3), extraction time (X2: 0.5–1.5 h) and solvent-to-sample ratio (X3: 20–40 mL/g) to obtain a high flavonoid yield with high % DPPHsc free radical scavenging and Ferric-reducing power assay (FRAP). The analysis of variance clearly showed the significant contribution of quadratic model for all responses. The optimal conditions for both Chinese lotus (CLR) and Malaysian lotus (MLR) roots were obtained as: CLR: X1 = 2.5; X2 = 0.5 h; X3 = 40 mL/g; MLR: X1 = 2.4; X2 = 0.5 h; X3 = 40 mL/g. These optimum conditions gave (a) Total flavonoid content (TFC) of 0.599 mg PCE/g sample and 0.549 mg PCE/g sample, respectively; (b) % DPPHsc of 48.36% and 29.11%, respectively; (c) FRAP value of 2.07 mM FeSO4 and 1.89 mM FeSO4, respectively. A close agreement between predicted and experimental values was found. The result obtained succinctly revealed that the Chinese lotus exhibited higher antioxidant and total flavonoid content when compared with the Malaysia lotus root at optimum extraction condition.
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Affiliation(s)
- Sze-Jack Tan
- Main Campus, Tunku Abdul Rahman University College, Jalan Genting Klang, Kuala Lumpur 53300, Malaysia;
| | - Chee-Keong Lee
- Bioprocess Division, School of Industrial Technology, Universiti Sains Malaysia, Gelugor 11800, Malaysia;
| | - Chee-Yuen Gan
- Analytical Biochemistry Research Center (ABrC), sains@usm Campus, Universiti Sains Malaysia, University Innovation Incubator Building, Lebuh Bukit Jambul, Bayan Lepas 11900, Malaysia
- Correspondence: (C.-Y.G.); (O.A.O.); Tel.: +604-6536826 (C.-Y.G.)
| | - Olusegun Abayomi Olalere
- Analytical Biochemistry Research Center (ABrC), sains@usm Campus, Universiti Sains Malaysia, University Innovation Incubator Building, Lebuh Bukit Jambul, Bayan Lepas 11900, Malaysia
- Correspondence: (C.-Y.G.); (O.A.O.); Tel.: +604-6536826 (C.-Y.G.)
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12
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Jo K, Kim S, Hong KB, Suh HJ. Nelumbo nucifera promotes non-rapid eye movement sleep by regulating GABAergic receptors in rat model. J Ethnopharmacol 2021; 267:113511. [PMID: 33148434 DOI: 10.1016/j.jep.2020.113511] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Revised: 06/21/2020] [Accepted: 10/20/2020] [Indexed: 06/11/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Nelumbo nucifera are used in folk medicine for anti-depressant, anti-convulsant, neuroprotective, and many other purposes. AIM OF THE STUDY The present work evaluated the sleep potentiating effects of water extract from lotus seed in rat, and the neuropharmacological mechanisms underlying these effects. MATERIALS AND METHODS Pentobarbital-induced sleep test and electroencephalogram (EEG) analysis were applied to investigate sleep latency, duration, total sleeping time and sleep quality of Lotus extract. In addition, real-time PCR and HPLC analysis were applied to analyze the signaling pathway. RESULTS We found that the amounts of the possible active compounds GABA (2.33 mg/g) and L-tryptophan (2.00 mg/g) were higher than quinidine (0.55 mg/g) and neferine (0.16 mg/g) in lotus seed extract. High dose (160 mg/kg) administration of lotus extract led to a tendency towards decreased sleep latency time and an increase in sleep duration time compared to the control group in a pentobarbital-induced sleep model (p < 0.05). After high dose administration, total sleep and NREM were significantly increased compared to control, while wake time and REM were significantly decreased. Lotus extract-treated rats showed significantly reduced wake time and increased sleep time in a caffeine-induced model of arousal. The transcription level of GABAA receptor, GABAB receptor, and serotonin receptor tended to increase with dose, and lotus extract showed a strong dose-dependent binding capacity to the GABAA receptor. CONCLUSION The above results strongly suggest that GABA contained in lotus seed extract acts as a sleep potentiating compound, and that sleep-potentiating activity involves GABAA receptor binding.
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Affiliation(s)
- Kyungae Jo
- Department of Integrated Biomedical and Life Sciences, Graduate School, Korea Univetsity, Seoul, 02841, Republic of Korea.
| | - Singeun Kim
- Department of Integrated Biomedical and Life Sciences, Graduate School, Korea Univetsity, Seoul, 02841, Republic of Korea.
| | - Ki-Bae Hong
- Department of Integrated Biomedical and Life Sciences, Graduate School, Korea Univetsity, Seoul, 02841, Republic of Korea.
| | - Hyung Joo Suh
- Department of Integrated Biomedical and Life Sciences, Graduate School, Korea Univetsity, Seoul, 02841, Republic of Korea.
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13
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Wang J, Liu T, Bian X, Hua Z, Chen G, Wu X. Structural characterization and physicochemical properties of starch from four aquatic vegetable varieties in China. Int J Biol Macromol 2021; 172:542-549. [PMID: 33454327 DOI: 10.1016/j.ijbiomac.2021.01.078] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Revised: 11/23/2020] [Accepted: 01/12/2021] [Indexed: 12/19/2022]
Abstract
Nelumbo nucifera Gaertn., Eleocharis dulcis, Sagittaria sagittifolia L., and Trapa bispinosa Roxb. are common aquatic vegetables that are rich in starch. Starches from these four aquatic vegetables and their applications in edible films were studied to facilitate full use of starch resources. Significant differences in transparency, freeze-thaw stability, water solubility index, swelling power, water and oil absorption capacities, starch particle morphology, and rheology were observed among the starches from these four aquatic vegetables. All starches exhibited a typical "A" type diffraction pattern. N. nucifera, E. dulcis, and S. sagittifolia starches have similar thermal properties, while T. bispinosa starch has a higher gelatinization temperature. S. sagittifolia starch film has the highest transparency and lower WVP and water solubility. These results will promote the development of products based on starch obtained from aquatic vegetables.
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Affiliation(s)
- Jizhong Wang
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huai'an 223003, Jiangsu, PR China.
| | - Tingting Liu
- The Affiliated Huai'an Hospital of Xuzhou Medical University, Huai'an 223002, Jiangsu, PR China
| | - Xuyun Bian
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huai'an 223003, Jiangsu, PR China
| | - Zhichao Hua
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huai'an 223003, Jiangsu, PR China
| | - Guodong Chen
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huai'an 223003, Jiangsu, PR China
| | - Xinxin Wu
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huai'an 223003, Jiangsu, PR China
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14
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Chen S, Li X, Wu J, Li J, Xiao M, Yang Y, Liu Z, Cheng Y. Plumula Nelumbinis: A review of traditional uses, phytochemistry, pharmacology, pharmacokinetics and safety. J Ethnopharmacol 2021; 266:113429. [PMID: 33011369 DOI: 10.1016/j.jep.2020.113429] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Revised: 09/06/2020] [Accepted: 09/26/2020] [Indexed: 06/11/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Plumula Nelumbinis, the green embryo of the mature seeds of Nelumbo nucifera Gaertn, has a medical history of over 400 years. It is widely used for clearing the heart and heat, calming the mind, and promoting astringent essence and hemostasis in traditional Chinese medicine. Moreover, it usually dual use as food and medicine. This review aimed to evaluate the therapeutic potential of Plumula Nelumbinis by summarizing its botany, traditional uses, phytochemistry, pharmacology, pharmacokinetics and safety. METHODS This review summarized published studies on Plumula Nelumbinis in the Chinese Pharmacopoeia and literature databases including PubMed, Web of Science, Baidu Scholar, Wiley and China Knowledge Resource Integrated Database (CNKI), and limits the different research articles in botany, traditional uses, phytochemistry, pharmacology, pharmacokinetics and safety about Plumula Nelumbinis. RESULTS Plumula Nelumbinis is used to treat hypertension, arrhythmia, severe aplastic anemia, insomnia, encephalopathy and gynecological disease in traditional Chinese medicine and clinical studies. More than 130 chemicals have been isolated and identified from Plumula Nelumbinis, including alkaloids, flavonoids, polysaccharides and volatile oil. In addition, pharmacological effects, such as protective effects against cardiovascular diseases, neurological diseases, lung and kidney injury, anti-inflammatory and anticancer activities, were also evaluated by in vitro and in vivo studies. Moreover, the potential signaling pathways regulated by Plumula Nelumbinis in cardiovascular and neurological diseases and perspectives on Plumula Nelumbinis research were discussed. CONCLUSION Plumula Nelumbinis, a commonly used Chinese medicine, has a variety of traditional and modern therapeutic uses. Some traditional uses, especially the treatment of cardiovascular and neurological diseases, have been verified by pharmacological investigation. However, the pharmacological molecular mechanisms, pharmacokinetics and toxicology of Plumula Nelumbinis are still incomplete. In the future, a series of systematic studies on active compounds identification, pharmacological mechanism clarification, quality and safety evaluation are necessary.
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Affiliation(s)
- Sixuan Chen
- Joint Laboratory for Translational Cancer Research of Chinese Medicine of the Ministry of Education of the People's Republic of China, International Institute for Translational Chinese Medicine, School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, 510006, China
| | - Xuping Li
- Joint Laboratory for Translational Cancer Research of Chinese Medicine of the Ministry of Education of the People's Republic of China, International Institute for Translational Chinese Medicine, School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, 510006, China
| | - Junxuan Wu
- Joint Laboratory for Translational Cancer Research of Chinese Medicine of the Ministry of Education of the People's Republic of China, International Institute for Translational Chinese Medicine, School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, 510006, China
| | - Jingyan Li
- Joint Laboratory for Translational Cancer Research of Chinese Medicine of the Ministry of Education of the People's Republic of China, International Institute for Translational Chinese Medicine, School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, 510006, China
| | - Mingzhu Xiao
- Joint Laboratory for Translational Cancer Research of Chinese Medicine of the Ministry of Education of the People's Republic of China, International Institute for Translational Chinese Medicine, School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, 510006, China
| | - Ying Yang
- Joint Laboratory for Translational Cancer Research of Chinese Medicine of the Ministry of Education of the People's Republic of China, International Institute for Translational Chinese Medicine, School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, 510006, China
| | - Zhongqiu Liu
- Joint Laboratory for Translational Cancer Research of Chinese Medicine of the Ministry of Education of the People's Republic of China, International Institute for Translational Chinese Medicine, School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, 510006, China
| | - Yuanyuan Cheng
- Joint Laboratory for Translational Cancer Research of Chinese Medicine of the Ministry of Education of the People's Republic of China, International Institute for Translational Chinese Medicine, School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, 510006, China.
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15
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Min T, Niu LF, Feng XY, Yi Y, Wang LM, Zhao Y, Wang HX. The effects of different temperatures on the storage characteristics of lotus (Nelumbo nucifera G.) root. Food Chem 2021; 348:129109. [PMID: 33524694 DOI: 10.1016/j.foodchem.2021.129109] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Revised: 01/11/2021] [Accepted: 01/11/2021] [Indexed: 01/21/2023]
Abstract
Lotus root (Nelumbo nucifera G.) is a high economic value crop in the world. In this study, the storage characteristics (color, sensory, texture, and fatty acids) of lotus root ("Elian No.5″) were evaluated at different harvest periods (September 2018, October 2018, November 2018, December 2018, and January 2019). Moreover, the storage characteristics were evaluated after the short- term and long-term storage of lotus root at 4 °C and 20 °C. The hardness of lotus root significantly decreased at both temperatures (4 °C and 20 °C) during the first 3 days of storage. In contrast, the decrease in hardness delayed at 4 °C (beyond 3 days of storage). Further, genes related to hardness at different storage temperatures were identified using the RNA-seq and qRT-PCR. The results of this study provide a reference for lotus root storage and a basis for the molecular breeding of longterm-storable lotus root.
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Affiliation(s)
- Ting Min
- College of Food Science & Engineering, Wuhan Polytechnic University, Wuhan 430023, China; Hubei Key Laboratory for Processing and Transformation of Agricultural Products (Wuhan Polytechnic University), China
| | - Li-Fang Niu
- College of Food Science & Engineering, Wuhan Polytechnic University, Wuhan 430023, China
| | - Xiang-Yang Feng
- College of Food Science & Engineering, Wuhan Polytechnic University, Wuhan 430023, China
| | - Yang Yi
- College of Food Science & Engineering, Wuhan Polytechnic University, Wuhan 430023, China; Hubei Key Laboratory for Processing and Transformation of Agricultural Products (Wuhan Polytechnic University), China
| | - Li-Mei Wang
- School Biology and Pharmaceutical Engineering, Wuhan Polytechnic University, Wuhan 430023, China
| | - Yun Zhao
- College of Food Science & Engineering, Wuhan Polytechnic University, Wuhan 430023, China
| | - Hong-Xun Wang
- School Biology and Pharmaceutical Engineering, Wuhan Polytechnic University, Wuhan 430023, China; Hubei Key Laboratory for Processing and Transformation of Agricultural Products (Wuhan Polytechnic University), China.
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Sun H, Li J, Song H, Yang D, Deng X, Liu J, Wang Y, Ma J, Xiong Y, Liu Y, Yang M. Comprehensive analysis of AGPase genes uncovers their potential roles in starch biosynthesis in lotus seed. BMC Plant Biol 2020; 20:457. [PMID: 33023477 PMCID: PMC7541243 DOI: 10.1186/s12870-020-02666-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Accepted: 09/23/2020] [Indexed: 05/06/2023]
Abstract
BACKGROUND Starch in the lotus seed contains a high proportion of amylose, which endows lotus seed a promising property in the development of hypoglycemic and low-glycemic index functional food. Currently, improving starch content is one of the major goals for seed-lotus breeding. ADP-glucose pyrophosphorylase (AGPase) plays an essential role in regulating starch biosynthesis in plants, but little is known about its characterization in lotus. RESULTS We describe the nutritional compositions of lotus seed among 30 varieties with starch as a major component. Comparative transcriptome analysis showed that AGPase genes were differentially expressed in two varieties (CA and JX) with significant different starch content. Seven putative AGPase genes were identified in the lotus genome (Nelumbo nucifera Gaertn.), which could be grouped into two subfamilies. Selective pressure analysis indicated that purifying selection acted as a vital force in the evolution of AGPase genes. Expression analysis revealed that lotus AGPase genes have varying expression patterns, with NnAGPL2a and NnAGPS1a as the most predominantly expressed, especially in seed and rhizome. NnAGPL2a and NnAGPS1a were co-expressed with a number of starch and sucrose metabolism pathway related genes, and their expressions were accompanied by increased AGPase activity and starch content in lotus seed. CONCLUSIONS Seven AGPase genes were characterized in lotus, with NnAGPL2a and NnAGPS1a, as the key genes involved in starch biosynthesis in lotus seed. These results considerably extend our understanding on lotus AGPase genes and provide theoretical basis for breeding new lotus varieties with high-starch content.
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Affiliation(s)
- Heng Sun
- Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074 China
| | - Juanjuan Li
- Hubei Province Research Center of Engineering Technology for Utilization of Botanical Functional Ingredients, Hubei Key Laboratory of Quality Control of Characteristic Fruits and Vegetables, College of Life Science and Technology, Hubei Engineering University, Xiaogan, 432000 Hubei China
| | - Heyun Song
- Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074 China
- University of Chinese Academy of Sciences, 19A Yuquanlu, Beijing, 100049 China
| | - Dong Yang
- Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074 China
- Center of Economic Botany, Core Botanical Gardens, Chinese Academy of Sciences, Wuhan, 430074 China
| | - Xianbao Deng
- Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074 China
- Center of Economic Botany, Core Botanical Gardens, Chinese Academy of Sciences, Wuhan, 430074 China
| | - Juan Liu
- Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074 China
| | - Yunmeng Wang
- Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074 China
- University of Chinese Academy of Sciences, 19A Yuquanlu, Beijing, 100049 China
| | - Junyu Ma
- Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074 China
- University of Chinese Academy of Sciences, 19A Yuquanlu, Beijing, 100049 China
| | - Yaqian Xiong
- Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074 China
- University of Chinese Academy of Sciences, 19A Yuquanlu, Beijing, 100049 China
| | - Yanling Liu
- Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074 China
| | - Mei Yang
- Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074 China
- Center of Economic Botany, Core Botanical Gardens, Chinese Academy of Sciences, Wuhan, 430074 China
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Yang S, Chen Y, Wang L, Wang T, Yang C. Antioxidant characteristics and hepatoprotective effects of a formula derived from Maydis stigma, Nelumbo nucifera and Taraxacum officinale against carbon tetrachloride-induced hepatic damage in rats. Pak J Pharm Sci 2020; 33:2131-2142. [PMID: 33824122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The hepatoprotective effects of a water extract formula (WEF) derived from three selected TCM herbs (i.e. Corn silk (Maydis stigma), lotus leaf (Nelumbo nucifera Gaertn) and dandelion (Taraxacum officinale)) were apprised by the antioxidant activities and by the decay of carbon tetrachloride (CCl4)-induced rats. The results indicated that the WEF had higher contents of total phenolic and flavonoids, 1,1-diphenyl-2-picrylhydrazyl (DPPH) free radical scavenging ability, ferric reducing antioxidant potential (FRAP) and equivalent antioxidant capacity (TEAC). The animal experiments revealed that the WEF administration could lower malondialdehyded (MDA) level, serum alanine aminotransferase (ALT), aspartate amino transferase (AST) activities, resume triglyceride (TG) and decreased glutathione (GSH) levels, and reform or resume super oxide dismutase (SOD) content as well as improve peroxidase (GPx), glutathione reductase (GRd) and catalase (CAT) activities in CCl4-induced rats. The histological inspections of liver demonstrated that CCl4 enlarged the extents of bile duct proliferation, necrosis, fibrosis, steatosis and fatty vacuolation all round liver, but the first three can be ameliorated by WEF. Based on these evidences from this study, the WEF by regulating the related antioxidant enzymes of liver to exhibit hepatoprotective effects was confirmed and it can be use as a substitute for the silymarin.
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Affiliation(s)
- Shihang Yang
- Department of Food Science and Technology, National Pingtung University of Science and Technology, Neipu, Pingtung County, Taiwan
| | - Yanzhu Chen
- Department of Food Science and Technology, National Pingtung University of Science and Technology, Neipu, Pingtung County, Taiwan
| | - Litang Wang
- Department of Electrical Engineering, National Central University, Zhongli Dist., Taoyuan City, Taiwan
| | - Tzuching Wang
- Department of Hospitality Management, Meiho University, Neipu, Pingtung County, Taiwan
| | - Chiching Yang
- Department of Food Science and Technology, National Pingtung University of Science and Technology, Neipu, Pingtung County, Taiwan
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Temviriyanukul P, Sritalahareuthai V, Promyos N, Thangsiri S, Pruesapan K, Srinuanchai W, Nuchuchua O, Siriwan D, On-nom N, Suttisansanee U. The Effect of Sacred Lotus ( Nelumbo nucifera) and Its Mixtures on Phenolic Profiles, Antioxidant Activities, and Inhibitions of the Key Enzymes Relevant to Alzheimer's Disease. Molecules 2020; 25:E3713. [PMID: 32824050 PMCID: PMC7463813 DOI: 10.3390/molecules25163713] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Revised: 08/04/2020] [Accepted: 08/10/2020] [Indexed: 11/16/2022] Open
Abstract
Sacred lotus (Nelumbo nucifera) has long been used as a food source and ingredient for traditional herbal remedies. Plant parts contain neuroprotective agents that interact with specific targets to inhibit Alzheimer's disease (AD). Organic solvents including methanol, ethyl acetate, hexane, and n-butanol, are widely employed for extraction of sacred lotus but impact food safety. Seed embryo, flower stalk, stamen, old leaf, petal, and leaf stalk of sacred lotus were extracted using hot water (aqueous extraction). The extractions were analyzed for their bioactive constituents, antioxidant and anti-AD properties as key enzyme inhibitory activities toward acetylcholinesterase (AChE), butyrylcholinesterase (BChE), and β-secretase 1 (BACE-1). Results showed that the sacred lotus stamen exhibited significant amounts of phenolics, including phenolic acids and flavonoids, that contributed to high antioxidant activity via both single electron transfer (SET) and hydrogen atom transfer (HAT) mechanisms, with anti-AChE, anti-BChE, and anti-BACE-1 activities. To enhance utilization of other sacred lotus parts, a combination of stamen, old leaf and petal as the three sacred lotus plant components with the highest phenolic contents, antioxidant activities, and enzyme inhibitory properties was analyzed. Antagonist interaction was observed, possibly from flavonoids-flavonoids interaction. Further in-depth elucidation of this issue is required. Findings demonstrated that an aqueous extract of the stamen has potential for application as a functional food to mitigate the onset of Alzheimer's disease.
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Affiliation(s)
- Piya Temviriyanukul
- Institute of Nutrition, Mahidol University, Salaya, Phuttamonthon, Nakhon Pathom 73170, Thailand; (P.T.); (V.S.); (N.P.); (S.T.); (N.O.-n.)
- Food and Nutrition Academic and Research Cluster, Institute of Nutrition, Mahidol University, Salaya, Phuttamonthon, Nakhon Pathom 73170, Thailand
| | - Varittha Sritalahareuthai
- Institute of Nutrition, Mahidol University, Salaya, Phuttamonthon, Nakhon Pathom 73170, Thailand; (P.T.); (V.S.); (N.P.); (S.T.); (N.O.-n.)
| | - Natnicha Promyos
- Institute of Nutrition, Mahidol University, Salaya, Phuttamonthon, Nakhon Pathom 73170, Thailand; (P.T.); (V.S.); (N.P.); (S.T.); (N.O.-n.)
| | - Sirinapa Thangsiri
- Institute of Nutrition, Mahidol University, Salaya, Phuttamonthon, Nakhon Pathom 73170, Thailand; (P.T.); (V.S.); (N.P.); (S.T.); (N.O.-n.)
| | - Kanchana Pruesapan
- Plant Varieties Protection Division, Department of Agriculture, Ministry of Agriculture and Cooperatives, Bangkok 10900, Thailand;
| | - Wanwisa Srinuanchai
- National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency(NSTDA), Klong Luang, Pathum Thani 12120, Thailand; (W.S.); (O.N.)
| | - Onanong Nuchuchua
- National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency(NSTDA), Klong Luang, Pathum Thani 12120, Thailand; (W.S.); (O.N.)
| | - Dalad Siriwan
- Institute of Food Research and Product Development, Kasetsart University, Chatuchak, Bangkok 10900, Thailand;
| | - Nattira On-nom
- Institute of Nutrition, Mahidol University, Salaya, Phuttamonthon, Nakhon Pathom 73170, Thailand; (P.T.); (V.S.); (N.P.); (S.T.); (N.O.-n.)
- Food and Nutrition Academic and Research Cluster, Institute of Nutrition, Mahidol University, Salaya, Phuttamonthon, Nakhon Pathom 73170, Thailand
| | - Uthaiwan Suttisansanee
- Institute of Nutrition, Mahidol University, Salaya, Phuttamonthon, Nakhon Pathom 73170, Thailand; (P.T.); (V.S.); (N.P.); (S.T.); (N.O.-n.)
- Food and Nutrition Academic and Research Cluster, Institute of Nutrition, Mahidol University, Salaya, Phuttamonthon, Nakhon Pathom 73170, Thailand
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Chen Y, Chen Q, Wang X, Sun F, Fan Y, Liu X, Li H, Deng Z. Hemostatic action of lotus leaf charcoal is probably due to transformation of flavonol aglycons from flavonol glycosides in traditional Chinses medicine. J Ethnopharmacol 2020; 249:112364. [PMID: 31678413 DOI: 10.1016/j.jep.2019.112364] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2019] [Revised: 10/09/2019] [Accepted: 10/27/2019] [Indexed: 06/10/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Nelumbo nucifera Gaertn (lotus) leaves were empirically carbonized to enhance the hemostatic effect in traditional Chinese medicines. The mechanism of this application remains unclear. AIM OF THE STUDY The present study aims at exploring the transformation of phytochemical compounds in lotus leaves after heating and figuring out the phytochemical mechanism of the application of charcoal hemostatic styptics. METHODS AND RESULTS Raw lotus leaves were heated at 150 °C and 220 °C, respectively, and the transformation of the phytochemicals was studied. Flavonol glycosides in raw lotus leaves were found to be degraded to their corresponding aglycons in 150 °C lotus leaf charcoals (LLC) and the subsequent degradation products of aglycons in 220 °C LLC. 150 °C LLC exhibited the most desirable hemostatic effect in mice on reducing both bleeding time (BT) and clotting time (CT) by more than 30% as compared to the untreated group (P < 0.05). The extracts of 150 °C LLC were further separated by using different solvents. Ethyl acetate fraction which contained much flavonol aglycons displayed the most desirable hemostatic effect. On the contrary, petroleum ether fraction contains poor flavonoid and much alkaloid thus prolonged BT and CT. N-butanol extracts which contained only flavonol glycoside failed to shorten CT. In rats, quercetin (aglycon) standard promoted blood coagulation by shortening APTT (activated partial thromboplastin time) and increasing fibrinogen (P < 0.05). Hyperoside (glycoside) increased fibrinogen and platelet count (P < 0.05). Nuciferine was shown to prolong APTT and TT (thrombin time) and decrease fibrinogen (P > 0.05). CONCLUSION Degradation of flavonoids and alkaloids in lotus leaves was suggested to enhance the hemostatic effect of LLC. Flavonol aglycons were found to be more effective on blood clotting compared with their corresponding glycosides. Nuciferine, a typical alkaloid in lotus leaves which was degraded in LLC showed anticoagulation effect in rats. The content of flavonoid aglycon can be regarded as a criterion to qualify LLC.
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Affiliation(s)
- Yuhuan Chen
- State Key Laboratory of Food Science and Technology and School of Food Science, Nanchang University, Nanchang, 330047, Jiangxi Province, China
| | - Qiwen Chen
- Department of Pediatrics, The First Affiliated Hospital of Nanchang University, Nanchang, 330006, Jiangxi Province, China
| | - Xiaozhong Wang
- Department of Clinical Laboratory Science, The Second Affiliated Hospital of Nanchang University, Nanchang, 330006, Jiangxi Province, China
| | - Fan Sun
- Department of Clinical Laboratory Science, The Second Affiliated Hospital of Nanchang University, Nanchang, 330006, Jiangxi Province, China
| | - Yawei Fan
- State Key Laboratory of Food Science and Technology and School of Food Science, Nanchang University, Nanchang, 330047, Jiangxi Province, China
| | - Xiaoru Liu
- State Key Laboratory of Food Science and Technology and School of Food Science, Nanchang University, Nanchang, 330047, Jiangxi Province, China
| | - Hongyan Li
- State Key Laboratory of Food Science and Technology and School of Food Science, Nanchang University, Nanchang, 330047, Jiangxi Province, China
| | - Zeyuan Deng
- State Key Laboratory of Food Science and Technology and School of Food Science, Nanchang University, Nanchang, 330047, Jiangxi Province, China.
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20
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Wang XY, Dai YT, Jin RN, Jiao QS, Shi SG, Huang ZJ, Zhang SS. [Quality evaluation methods for standard decoction of Nelumbinis Folium]. Zhongguo Zhong Yao Za Zhi 2020; 45:1363-1367. [PMID: 32281349 DOI: 10.19540/j.cnki.cjcmm.20191221.307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The quality evaluation method for standard decoction of Chinese herbal slices is the basis for the quality evaluation of granules and preparations of classical formula(decoction)of traditional Chinese medicine. This study aimed to establish a method for the determination of quercetin-3-O-glucuronic acid in Nelumbinis Folium(NF)and its standard decoction, so as to provide reference for the quality control of NF and its standard decoction. Fifteen batches of representative NF were collected to prepare standard decoction, and the parameters of dry extract rate, transfer rate of index component, and pH value were calculated. HPLC was used to establish the content determination method for quercetin-3-O-glucuronic acid in NF and its standard decoction. The concentration range of quercetin-3-O-glucuronic acid in the standard decoction of NF was 1.09-3.06 g·L~(-1), while the concentration range of nuciferine was 0.01-0.17 g·L~(-1). The average extraction rate of NF standard decoction was(14.4±2.6)%, the average transfer rate of quercetin-3-O-glucuronic acid was(70.7±18.6)%, and the average transfer rate of nuciferine was(9.6±5.4)%. Compared with Nuciferine, quercetin-3-O-glucuronic acid had a high content and stable transfer rate in standard decoction, and was recommended to be the quality control marker for NF and its standard decoction. This paper establishes a quality evaluation method for NF standard decoction, and can provide reference for the quality control of all preparations derived from NF and its decoction.
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Affiliation(s)
- Xue-Yuan Wang
- Institute of Chinese Materia Medica, China Academy of Chinese Medicinal Sciences Beijing 100700, China Shanxi University of Chinese Medicine Jinzhong 030619, China
| | - Yun-Tao Dai
- Institute of Chinese Materia Medica, China Academy of Chinese Medicinal Sciences Beijing 100700, China Shanxi University of Chinese Medicine Jinzhong 030619, China
| | - Ru-Na Jin
- Institute of Chinese Materia Medica, China Academy of Chinese Medicinal Sciences Beijing 100700, China
| | - Qi-Shu Jiao
- Institute of Chinese Materia Medica, China Academy of Chinese Medicinal Sciences Beijing 100700, China
| | - Shou-Gang Shi
- Sunflower Pharmaceutical Group Longzhong Co., Ltd. Xiangyang 441003, China
| | - Zheng-Jun Huang
- Sunflower Pharmaceutical Group Longzhong Co., Ltd. Xiangyang 441003, China
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21
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Menéndez-Perdomo IM, Facchini PJ. Isolation and characterization of two O-methyltransferases involved in benzylisoquinoline alkaloid biosynthesis in sacred lotus ( Nelumbo nucifera). J Biol Chem 2020; 295:1598-1612. [PMID: 31914404 PMCID: PMC7008365 DOI: 10.1074/jbc.ra119.011547] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Revised: 12/28/2019] [Indexed: 12/15/2022] Open
Abstract
Benzylisoquinoline alkaloids (BIAs) are a major class of plant metabolites with many pharmacological benefits. Sacred lotus (Nelumbo nucifera) is an ancient aquatic plant of medicinal value because of antiviral and immunomodulatory activities linked to its constituent BIAs. Although more than 30 BIAs belonging to the 1-benzylisoquinoline, aporphine, and bisbenzylisoquinoline structural subclasses and displaying a predominant R-enantiomeric conformation have been isolated from N. nucifera, its BIA biosynthetic genes and enzymes remain unknown. Herein, we report the isolation and biochemical characterization of two O-methyltransferases (OMTs) involved in BIA biosynthesis in sacred lotus. Five homologous genes, designated NnOMT1-5 and encoding polypeptides sharing >40% amino acid sequence identity, were expressed in Escherichia coli Functional characterization of the purified recombinant proteins revealed that NnOMT1 is a regiospecific 1-benzylisoquinoline 6-O-methyltransferase (6OMT) accepting both R- and S-substrates, whereas NnOMT5 is mainly a 7-O-methyltransferase (7OMT), with relatively minor 6OMT activity and a strong stereospecific preference for S-enantiomers. Available aporphines were not accepted as substrates by either enzyme, suggesting that O-methylation precedes BIA formation from 1-benzylisoquinoline intermediates. Km values for NnOMT1 and NnOMT5 were 20 and 13 μm for (R,S)-norcoclaurine and (S)-N-methylcoclaurine, respectively, similar to those for OMTs from other BIA-producing plants. Organ-based correlations of alkaloid content, OMT activity in crude extracts, and OMT gene expression supported physiological roles for NnOMT1 and NnOMT5 in BIA metabolism, occurring primarily in young leaves and embryos of sacred lotus. In summary, our work identifies two OMTs involved in BIA metabolism in the medicinal plant N. nucifera.
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Affiliation(s)
| | - Peter J Facchini
- Department of Biological Sciences, University of Calgary, Calgary, Alberta T2N 1N4, Canada.
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22
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Rajput MA, Khan RA, Zafar S, Riaz A, Ikram R. Assessment of anti-coagulant activity of Nelumbo nucifera fruit. Pak J Pharm Sci 2019; 32:2561-2564. [PMID: 31969286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The herbal agents rich in flavonoids are progressively becoming popular these days as they are considered to have anti-oxidant effects and also lack bothersome effects. That's why existing research was encircled around the anti-coagulant effect of Nelumbo nucifera fruit (NNF) as it is also a rich source of flavonoids and cultivated in abundance especially in tropical regions of Asia but its usefulness as anti-coagulant agent was never determined pharmacologically. Anticoagulant assessment was done in thirty five male Wister rats which were separated equally in 5 groups. Results of the current study revealed that NNF 200mg/kg significantly prolonged prothrombin time and thrombin time, whereas fibrinogen level was highly significantly reduced as compared to control. Fibrinogen level was also reduced highly significantly with NNF 100 mg/kg as compared to control without affecting other parameters of coagulation i.e. activated partial thromboplastin time, prothrombin time and thrombin time. NNF exhibited strong anti-coagulant activity which may be due to the inhibitory effects on platelet activation, adhesion and aggregation along with inhibitory effects on thromboxane A2 formation. Presence of alkaloid i.e. neferine and flavonoids in it may be a reason of its anti-coagulant activity but more pre-clinical and clinical evaluation needs to be conducted to establish these findings.
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Affiliation(s)
- Muhammad Ali Rajput
- Department of Pharmacology, Multan Medical & Dental College, Multan, Pakistan
| | - Rafeeq Alam Khan
- Faculty of Pharmacy, Ziauddin University, Karachi, Pakistan/Department of Pharmacology, Faculty of Pharmacy and Pharmaceutical Sciences, University of Karachi, Karachi, Pakistan
| | - Shahid Zafar
- Department of Pathology, Liaquat College of Medicine & Dentistry, Karachi, Pakistan
| | - Azra Riaz
- Department of Pharmacology, Faculty of Pharmacy and Pharmaceutical Sciences, University of Karachi, Karachi, Pakistan
| | - Rahila Ikram
- Department of Pharmacology, Faculty of Pharmacy and Pharmaceutical Sciences, University of Karachi, Karachi, Pakistan
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Zhu Y, Hu P, Yao J, Xu D, Xu Y, Tan Q. Optimal dietary alcoholic extract of lotus leaf improved growth performance and health status of grass carp (Ctenopharyngodon idellus). Fish Shellfish Immunol 2019; 93:1-7. [PMID: 31315061 DOI: 10.1016/j.fsi.2019.07.039] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Revised: 07/08/2019] [Accepted: 07/13/2019] [Indexed: 06/10/2023]
Abstract
Grass carp (Ctenopharyngodon idellus) is one of the most important aquaculture fish in China. This study tried to explore the effects of dietary alcoholic extract of lotus leaf (AELL) addition on the growth performance and health status of grass carp by feeding juvenile fish (average weight: 34 ± 1 g) with four different experimental diets: control, AELL7, AELL14 and AELL21 for 8 weeks. At the end of the growth trial, the highest values of final body weight (FBW), weight gain rate (WGR), specific growth rate (SGR) and feed intake (FI) all occurred in group AELL14 (P < 0.05). Compared to control, the crude lipid content of whole-body and the serum malondialdehyde (MDA) in the three experimental groups decreased, while the serum superoxide dismutase (SOD), glutathione peroxidase (GSH) and total antioxidant capacity (T-AOC) values almost all increased in the three experimental groups. The highest serum immunoglobulin M (IgM) concentration occurred in AELL14 group (P < 0.05). In AELL14 and AELL21 groups, both the serum complement 3 (C3) concentration and lysozyme (LYS) activity were significantly higher, whereas the final cumulative mortality in challenge test was significantly lower, when compared to those in control group (P < 0.05). The AELL exerted dose-dependent beneficial effects on grass carp health through up-regulating related gene expressions and enzyme activity. In conclusion, the optimal dietary AELL level is 0.14% for juvenile grass carp.
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Affiliation(s)
- Yanhong Zhu
- Key Laboratory of Freshwater Animal Breeding, Ministry of Agriculture, Hubei Provincial Engineering Laboratory for Pond Aquaculture, College of Fisheries, Huazhong Agricultural University, Wuhan, 430070, China
| | - Pengcheng Hu
- Key Laboratory of Freshwater Animal Breeding, Ministry of Agriculture, Hubei Provincial Engineering Laboratory for Pond Aquaculture, College of Fisheries, Huazhong Agricultural University, Wuhan, 430070, China
| | - Junpeng Yao
- Key Laboratory of Freshwater Animal Breeding, Ministry of Agriculture, Hubei Provincial Engineering Laboratory for Pond Aquaculture, College of Fisheries, Huazhong Agricultural University, Wuhan, 430070, China
| | - Daju Xu
- Key Laboratory of Freshwater Animal Breeding, Ministry of Agriculture, Hubei Provincial Engineering Laboratory for Pond Aquaculture, College of Fisheries, Huazhong Agricultural University, Wuhan, 430070, China
| | - Yingyan Xu
- Key Laboratory of Freshwater Animal Breeding, Ministry of Agriculture, Hubei Provincial Engineering Laboratory for Pond Aquaculture, College of Fisheries, Huazhong Agricultural University, Wuhan, 430070, China
| | - Qingsong Tan
- Key Laboratory of Freshwater Animal Breeding, Ministry of Agriculture, Hubei Provincial Engineering Laboratory for Pond Aquaculture, College of Fisheries, Huazhong Agricultural University, Wuhan, 430070, China.
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Li Q, Sun M, Wan Z, Liang J, Betti M, Hrynets Y, Xue X, Wu L, Wang K. Bee Pollen Extracts Modulate Serum Metabolism in Lipopolysaccharide-Induced Acute Lung Injury Mice with Anti-Inflammatory Effects. J Agric Food Chem 2019; 67:7855-7868. [PMID: 31274310 DOI: 10.1021/acs.jafc.9b03082] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Bee pollen (BP) collected from different floras possesses various potential bioactivities, but the mechanism-related research on anti-inflammatory effects is limited. Here, three types of BP originating from Camellia sinensis L. (BP-Cs), Nelumbo nucifera Gaertn. (BP-Nn), and Brassica campestris L. (BP-Bc) were assessed using molecular and metabolomics methods to determine their anti-inflammatory effects. The differences in polyphenolic abundance of three types of BP extracts were determined by HPLC-DAD/Q-TOF-MS. In vitro anti-inflammatory effects of three BP extracts were evaluated in a lipopolysaccharide (LPS)-induced RAW 264.7 cells model. BP-Cs extract with the most abundant polyphenols was found to be the most effective in reducing inflammation by downregulating inflammatory-related genes expression and blocking the activation of MAPK and NF-κB signaling pathways. Polyphenol-rich BP-Cs was further evaluated for their in vivo anti-inflammatory effect in a LPS-induced acute lung injury mouse model. An UPLC-Q-TOF/MS-based metabolomics approach was applied to analyze metabolite changes in mouse serum. Weshowed that the pretreated BP-Cs extract alleviated inflammation and regulated glycerophospholipid metabolism significantly. Our findings provide a foundation for developing and justifying BP as a potential anti-inflammatory ingredient in functional foods or nutraceutical formulations.
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Affiliation(s)
- Qiangqiang Li
- Institute of Apicultural Research , Chinese Academy of Agricultural Sciences , Beijing 100093 , China
| | - Minghui Sun
- Institute of Apicultural Research , Chinese Academy of Agricultural Sciences , Beijing 100093 , China
| | - Zhengrui Wan
- Institute of Apicultural Research , Chinese Academy of Agricultural Sciences , Beijing 100093 , China
| | - Junshi Liang
- Beijing Laboratory Animal Research Center , Beijing 100012 , China
| | - Mirko Betti
- Department of Agricultural Food and Nutritional Science, Faculty of Agricultural, Life & Environmental Sciences , University of Alberta , Edmonton , Alberta T6G 2P5 , Canada
| | - Yuliya Hrynets
- Department of Agricultural Food and Nutritional Science, Faculty of Agricultural, Life & Environmental Sciences , University of Alberta , Edmonton , Alberta T6G 2P5 , Canada
| | - Xiaofeng Xue
- Institute of Apicultural Research , Chinese Academy of Agricultural Sciences , Beijing 100093 , China
| | - Liming Wu
- Institute of Apicultural Research , Chinese Academy of Agricultural Sciences , Beijing 100093 , China
| | - Kai Wang
- Institute of Apicultural Research , Chinese Academy of Agricultural Sciences , Beijing 100093 , China
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25
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Limwachiranon J, Huang H, Li L, Duan Z, Luo Z. Recovery of lotus (Nelumbo nucifera Gaertn.) seedpod flavonoids using polar macroporous resins: The updated understanding on adsorption/desorption mechanisms and the involved intermolecular attractions and bonding. Food Chem 2019; 299:125108. [PMID: 31310914 DOI: 10.1016/j.foodchem.2019.125108] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Revised: 06/27/2019] [Accepted: 07/01/2019] [Indexed: 11/18/2022]
Abstract
Macroporous resins have been employed in the effective recovery of flavonoids from plants. In this study, S8 polar resins were used to recover flavonoids and procyanidins from lotus seedpods. Adsorption kinetics, isotherms, and thermodynamics studies revealed that the adsorption process involved physico-chemical interactions, including flavonoid-resin and flavonoid-flavonoid electrostatic interactions, π-π aromatic stacking, moderate and strong hydrogen bonding, and repulsive forces. These forces worked complementarily in adsorption, except for the repulsive force, which opposed the adsorption. Further, adsorption temperature determined the adsorption behavior, with multilayer adsorption enhancing adsorption capacity. In dynamic desorption tests, an acetone/water/acetic acid mixture (58.77: 39.34: 1.89) designed by the D-optimal design method was able to desorb 95.57% and 89.85% of total flavonoids and procyanidins, respectively, using less than two bed volumes of solvent. Ultra-performance liquid chromatography triple-time of flight/mass spectrometry (UPLC-TOF/MS) analysis showed that 26 flavonoids, including 5 procyanidins, were detected after the recovery.
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Affiliation(s)
- Jarukitt Limwachiranon
- Zhejiang University, College of Biosystems Engineering and Food Science, Key Laboratory of Agro-Products Postharvest Handling of Ministry of Agricultural and Rural Affairs, Zhejiang Key Laboratory for Agro-Food Processing, Yuhangtang Road 866, Hangzhou 310058, People's Republic of China.
| | - Hao Huang
- Zhejiang University, College of Biosystems Engineering and Food Science, Key Laboratory of Agro-Products Postharvest Handling of Ministry of Agricultural and Rural Affairs, Zhejiang Key Laboratory for Agro-Food Processing, Yuhangtang Road 866, Hangzhou 310058, People's Republic of China.
| | - Li Li
- Zhejiang University, College of Biosystems Engineering and Food Science, Key Laboratory of Agro-Products Postharvest Handling of Ministry of Agricultural and Rural Affairs, Zhejiang Key Laboratory for Agro-Food Processing, Yuhangtang Road 866, Hangzhou 310058, People's Republic of China.
| | - Zhenhua Duan
- Institute of Food Science and Engineering, Hezhou University, Hezhou, People's Republic of China.
| | - Zisheng Luo
- Zhejiang University, College of Biosystems Engineering and Food Science, Key Laboratory of Agro-Products Postharvest Handling of Ministry of Agricultural and Rural Affairs, Zhejiang Key Laboratory for Agro-Food Processing, Yuhangtang Road 866, Hangzhou 310058, People's Republic of China; Ningbo Research Institute, Zhejiang University, Ningbo 315100, People's Republic of China.
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Ye W, Tang J, Wang Y, Cai X, Liu H, Lin J, Van der Bruggen B, Zhou S. Hierarchically structured carbon materials derived from lotus leaves as efficient electrocatalyst for microbial energy harvesting. Sci Total Environ 2019; 666:865-874. [PMID: 30818210 DOI: 10.1016/j.scitotenv.2019.02.300] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2018] [Revised: 02/19/2019] [Accepted: 02/19/2019] [Indexed: 06/09/2023]
Abstract
Developing a highly efficient, cost-effective, easily scalable and sustainable cathode for oxygen reduction reaction (ORR) is a crucial challenge in terms of future "green" energy conversion technologies, e.g., microbial fuel cells (MFCs). In this study, a natural and widely available lotus leaf with intrinsically hierarchical structure was employed to serve as the single precursor to prepare the catalyst applied as the MFC cathode. The hierarchically particle-coated bio‑carbon was self-constructed from the lotus leaf, which yielded a large specific surface area, highly porous structure and superhydrophobicity via facile pyrolysis coupling hydrothermal activation by ZnCl2/(NH4)2SO4. Electrochemical evaluation demonstrated that these natural leaf-derived carbons have an efficient ORR activity. Specifically, the HC-900 catalyst with hydrothermal activation achieved an onset potential of -0.015 V vs. Ag/AgCl, which was comparable to the commercial Pt/C catalyst (-0.010 V vs. Ag/AgCl) and was more efficient than the DC-900 catalyst through direct pyrolysis. Furthermore, the HC-900 catalyst achieved an outstanding ORR activity via a one-step and four-electron pathway, exhibiting a potential alternative to Pt/C as electrocatalyst in ORR, due to its better long-term durability and methanol resistance. Additionally, the HC-900 catalyst was applied as an effective electrocatalytic cathode in an MFC system with a maximum power density of 511.5 ± 25.6 mW⋅m-2, exhibiting a superior energy harvesting capacity to the Pt/C cathode.
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Affiliation(s)
- Wenyuan Ye
- Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Jiahuan Tang
- Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Yajun Wang
- Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Xixi Cai
- Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Hongwei Liu
- Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Jiuyang Lin
- Fujian Provincial Engineering Research Center for High-value Utilization Technology of Plant Resources, School of Environment and Resources, Qi Shan Campus, Fuzhou University, No. 2 Xueyuan Road, University Town, 350116 Fuzhou, Fujian, China.
| | - Bart Van der Bruggen
- Department of Chemical Engineering, Process Engineering for Sustainable Systems (ProcESS), KU Leuven, Celestijnenlaan 200F, B-3001 Leuven, Belgium
| | - Shungui Zhou
- Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
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Gong DS, Kang SW, Sharma K, Kim DW, Oak MH. The Vasorelaxatory Effect of Nelumbo nucifera Spornioderm on Porcine Coronary Artery. J Nanosci Nanotechnol 2019; 19:1176-1179. [PMID: 30360228 DOI: 10.1166/jnn.2019.15904] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Endothelium dysfunction is a hallmark of cardiovascular disease (CVD) and is characterized by loss of homeostasis. Nitric oxide deprivation, unbalanced production of vasoactive factors such as thromboxane, endothelium-derived hyperpolarizing factor (EDHF) and production of reactive oxygen species are known as early indicators of CVD. Bioavailability of nitric oxide, antioxidative activity, and regulation of ionic homeostasis are the key targets for prevention of CVD. In this study, we investigated the vasorelaxant action of Nelumbo nucifera extract as well as the underlying mechanism using porcine coronary artery. Vasorelaxant effect of extracts from four different parts of Nelumbo nucifera (flower, leaf, seed, and spornioderm) was tested. Among them, extracts from Nelumbo nucifera spornioderm (NNS) showed the strongest endothelium-dependent vasorelaxation. Vasorelaxation effect of NNS was markedly reduced by inhibitor of endothelial nitric oxide synthase (eNOS), inhibitor of Phosphoinositide 3 kinase (PI3K) and inhibitor of soluble guanylyl cyclase (sGC), but unaffected by inhibitor of cyclooxygenase and EDHF. NNS induced concentration-dependent phosphorylation of eNOS in endothelial cells. Altogether, our study demonstrated that NNS is a potent endothelium-dependent vasodilator, mediated by PI3K-eNOS-sGC pathway. Our present findings showed NNS as a potential herbal candidate for the therapy of cardiovascular diseases associated with endothelial dysfunction and atherosclerosis.
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Affiliation(s)
- Dal-Seong Gong
- College of Pharmacy and Natural Medicine Research Institute, Mokpo National University, Muan, 58554, Republic of Korea
| | - Si-Won Kang
- College of Pharmacy and Natural Medicine Research Institute, Mokpo National University, Muan, 58554, Republic of Korea
| | - Kushal Sharma
- College of Pharmacy and Natural Medicine Research Institute, Mokpo National University, Muan, 58554, Republic of Korea
| | - Dong-Wook Kim
- Department of Oriental Medicine Resources, Mokpo National University, Muan, 58554, Republic of Korea
| | - Min-Ho Oak
- College of Pharmacy and Natural Medicine Research Institute, Mokpo National University, Muan, 58554, Republic of Korea
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Nawaz H, Shad MA, Saleem S, Khan MUA, Nishan U, Rasheed T, Bilal M, Iqbal HMN. Characteristics of starch isolated from microwave heat treated lotus (Nelumbo nucifera) seed flour. Int J Biol Macromol 2018; 113:219-226. [PMID: 29476856 DOI: 10.1016/j.ijbiomac.2018.02.125] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2017] [Revised: 01/21/2018] [Accepted: 02/19/2018] [Indexed: 02/05/2023]
Abstract
The present study aimed to investigate the influence of microwave irradiation on the physical and functional properties of starch extracted from Nelumbo nucifera seed flour. The seed flour was obtained by manual grinding of seeds and irradiated at different microwave treatment time, i.e., 1, 2, 3, 4 and 5min at the low-medium intensity. The starch was extracted in distilled water and dried at room temperature using a vacuum desiccator. The morphology, crystal structure, and surface parameters of starch granules were analyzed using scanning electron microscopy, X-ray diffraction, Fourier transform infra-red spectroscopy and Brunauer, Emmett and Teller surface analysis techniques. The functional properties of starch were also determined in terms of water and oil holding capacity, swelling capacity, emulsifying activity and gelling ability. Evidently, crystallinity, surface area and pore volume of starch granules were found to be increased, while particle size and average pore size were decreased as a function of microwave treatment time. The microwave-induced variations in physical parameters significantly affected the functional properties of starch. A significant (p>0.05) exponential decrease in extraction yield and gelling ability, while an exponential increase in the functional properties of starch with increase in the microwave treatment time (R2=0.915-0.985) was recorded.
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Affiliation(s)
- Haq Nawaz
- Department of Biochemistry, Bahauddin Zakariya University, Multan 60800, Pakistan.
| | - Muhammad Aslam Shad
- Department of Biochemistry, Bahauddin Zakariya University, Multan 60800, Pakistan
| | - Sadia Saleem
- Institute of Chemical Sciences, Bahauddin Zakariya University, Multan 60800, Pakistan
| | | | - Umar Nishan
- Department of Chemistry, Kohat University of Science and Technology, Kohat, Pakistan
| | - Tahir Rasheed
- The School of Chemistry & Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Muhammad Bilal
- State Key Laboratory of Microbial Metabolism, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Hafiz M N Iqbal
- Tecnologico de Monterrey, School of Engineering and Sciences, Campus Monterrey, Ave. Eugenio Garza Sada 2501, Monterrey, N.L. CP 64849, Mexico
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Zhou X, Feng D, Wen C, Liu D. Decomposition dynamic of two aquatic macrophytes Trapa bispinosa Roxb. and Nelumbo nucifera detritus. Environ Sci Pollut Res Int 2018; 25:16177-16191. [PMID: 29594882 DOI: 10.1007/s11356-018-1754-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/26/2017] [Accepted: 03/13/2018] [Indexed: 06/08/2023]
Abstract
In freshwater ecosystems, aquatic macrophytes play significant roles in nutrient cycling. One problem in this process is nutrient loss in the tissues of untimely harvested plants. In this study, we used two aquatic species, Nelumbo nucifera and Trapa bispinosa Roxb., to investigate the decomposition dynamics and nutrient release from detritus. Litter bags containing 10 g of stems (plus petioles) and leaves for each species detritus were incubated in the pond from November 2016 to May 2017. Nine times litterbags were retrieved on days 6, 14, 25, 45, 65, 90, 125, 145, and 165 after the decomposition experiment for the monitoring of biomass loss and nutrient release. The results suggested that the dry masses of N. nucifera and T. bispinosa decomposed by 49.35-69.40 and 82.65-91.65%, respectively. The order of decomposition rate constants (k) is as follows: leaves of T. bispinosa (0.0122 day-1) > stems (plus petioles) of T. bispinosa (0.0090 day-1) > leaves of N. nucifera (0.0060 day-1) > stems (plus petioles) of N. nucifera (0.0030 day-1). Additionally, the orders of time for 50% dry mass decay, time for 95% dry mass decay, and turnover rate are as follows: leaves < stems (plus petioles) and T. bispinosa < N. nucifera, respectively. This result indicated that the dry mass loss, k values, and other parameters related to k values are significantly different in species- and tissue-specific. The C, N, and P concentration and the C/N, C/P, and N/P ratios presented the irregular temporal changes trends during the whole decay period. In addition, nutrient accumulation index (AI) was significantly changed depending on the dry mass remaining and C, N, and P concentration in detritus at different decomposition times. The nutrient AIs were 36.72, 8.08, 6.35, and 2.56% for N; 31.25, 9.85, 4.00, and 1.63% for P; 25.15, 16.96, 7.36, and 6.16% for C in the stems (plus petioles) of N. nucifera, leaves of N. nucifera, stems (plus petioles) of T. bispinosa, and leaves of T. bispinosa, respectively, at the day 165. These results indicated that 63.28-97.44% of N, 68.75-98.37% of P, and 74.85-93.84% of C were released from the plant detritus to the water at the day 165 of the decomposition period. The initial detritus chemistry, particularly the P-related parameters (P concentration and C/P and N/P ratios), strongly affected dry mass loss, decomposition rates, and nutrient released from detritus into water. Two-way ANOVA results also confirm that the effects on the species were significant for decomposition dynamics (dry mass loss), nutrient release (nutrient concentration, their ratios, and nutrient AI) (P < 0.01), and expected N concentration (P > 0.05). In addition, the decomposition time had also significant effects on the detritus decomposition dynamic and nutrient release. However, the contributors of species and decomposition time on detritus decomposition were significantly different on the basis of their F values of two-way ANOVA results. This study can provide scientific bases for the aquatic plant scientific management in freshwater ecosystems of the East region of China.
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Affiliation(s)
- Xiaohong Zhou
- School of the Environment and Safety Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu, 212013, People's Republic of China.
| | - Deyou Feng
- School of the Environment and Safety Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu, 212013, People's Republic of China
| | - Chunzi Wen
- School of the Environment and Safety Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu, 212013, People's Republic of China
| | - Dan Liu
- School of the Environment and Safety Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu, 212013, People's Republic of China
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Geraldi NR, Dodd LE, Xu BB, Wood D, Wells GG, McHale G, Newton MI. Bioinspired nanoparticle spray-coating for superhydrophobic flexible materials with oil/water separation capabilities. Bioinspir Biomim 2018; 13:024001. [PMID: 29239856 DOI: 10.1088/1748-3190/aaa1c1] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Much of the inspiration for the creation of superhydrophobic surfaces has come from nature, from plants such as the sacred lotus (Nelumbo nucifera), where the micro-scale papillae epidermal cells on the surfaces of the leaves are covered with nano-scale epicuticular wax crystalloids. The combination of the surface roughness and the hydrophobic wax coating produces a superhydrophobic wetting state on the leaves, allowing them to self-clean and easily shed water. Here, a simple scaled-up carbon nanoparticle spray coating is presented that mimics the surface of sacred lotus leaves and can be applied to a wide variety of materials, complex structures, and flexible substrates, rendering them superhydrophobic, with contact angles above 160°. The sprayable mixture is produced by combining toluene, polydimethylsiloxane, and inherently hydrophobic rapeseed soot. The ability to spray the superhydrophobic coating allows for the hydrophobisation of complex structures such as metallic meshes, which allows for the production of flexible porous superhydrophobic materials that, when formed into U-shaped channels, can be used to direct flows. The porous meshes, whilst being superhydrophobic, are also oleophilic. Being both superhydrophobic and oleophilic allows oil to pass through the mesh, whilst water remains on the surface. The meshes were tested for their ability to separate mixtures of oil and water in flow conditions. When silicone oil/water mixtures were passed over the meshes, all meshes tested were capable of separating more than 93% of the oil from the mixture.
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Affiliation(s)
- Nicasio R Geraldi
- Faculty of Engineering and Environment, Smart Materials and Surfaces Laboratory, Northumbria University, Newcastle upon Tyne NE1 8ST, United Kingdom
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You Y, Lee H, Yoon HG, Park J, Kim OK, Kim K, Lee MJ, Lee YH, Lee J, Jun W. A Blend of Extracts from Houttuynia cordata, Nelumbo nucifera, and Camellia sinensis Protects Against Ethanol-Induced Liver Damage in C57BL/6 Mice. J Med Food 2018; 21:203-206. [PMID: 29356593 DOI: 10.1089/jmf.2017.4043] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
The protective activity of a mixture of aqueous and ethanolic extracts from Houttuynia cordata Thunb, Nelumbo nucifera G. leaves, and Camellia sinensis seed (HNC) was evaluated in C57BL/6 mice. Pretreatment with HNC prevented the elevation of serum aspartate aminotransferase and alanine aminotransferase caused by ethanol-induced hepatic damage. The HNC-treated mice showed significantly lower triglyceride levels, reduced CYP2E1 activity, and increased antioxidant enzyme activities and lipogenic mRNA levels. These results suggest that HNC might be a candidate agent for liver protection against ethanol-induced oxidative damage, through enhancement of antioxidant and antilipogenic activity.
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Affiliation(s)
- Yanghee You
- 1 Division of Food and Nutrition, Chonnam National University , Gwangju, Korea
- 2 University Industry Liaison Office of CNU, Chonnam National University , Gwangju, Korea
| | - Hyunmi Lee
- 1 Division of Food and Nutrition, Chonnam National University , Gwangju, Korea
| | - Ho-Geun Yoon
- 3 Department of Biochemistry and Molecular Biology, College of Medicine, Yonsei University , Seoul, Korea
| | - Jeongjin Park
- 1 Division of Food and Nutrition, Chonnam National University , Gwangju, Korea
- 4 Research Institute for Human Ecology, Chonnam National University , Gwangju, Korea
| | - Ok-Kyung Kim
- 1 Division of Food and Nutrition, Chonnam National University , Gwangju, Korea
| | - Kyungmi Kim
- 5 Department of Biofood Analysis, Korea Bio Polytechnic , Ganggyung, Korea
| | - Min-Jae Lee
- 6 NutriPlan Co., Ltd. , Research Center, Gyeonggido, Korea
| | - Yoo-Hyun Lee
- 7 Department of Food and Nutrition, University of Suwon , Gyeonggido, Korea
| | - Jeongmin Lee
- 8 Research Institute of Medical Nutrition, Kyung Hee University , Gyeonggido, Korea
| | - Woojin Jun
- 1 Division of Food and Nutrition, Chonnam National University , Gwangju, Korea
- 4 Research Institute for Human Ecology, Chonnam National University , Gwangju, Korea
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Yang X, Yu MF, Lei J, Peng YB, Zhao P, Xue L, Chen W, Ma LQ, Liu QH, Shen J. Nuciferine Relaxes Tracheal Rings via the Blockade of VDLCC and NSCC Channels. Planta Med 2018; 84:83-90. [PMID: 28817840 DOI: 10.1055/s-0043-118178] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
This study aimed to elucidate the mechanisms of nuciferine (a main aporphine alkaloid of lotus leaf extract), which can induce relaxation in contracted tracheal rings. Under Ca2+-free and 2 mM Ca2+ conditions, we found that nuciferine had no effect on the resting muscle tone of tracheal rings. In contrast, nuciferine relaxed high K+-contracted mouse tracheal rings in a dose-dependent manner and inhibited both Ca2+ influx and voltage-dependent L-type Ca2+ channel currents induced by high K+. Similarly, nuciferine also inhibited acetylcholine-induced contractions in mouse tracheal rings in a dose-dependent manner. Meanwhile, both acetylcholine-induced intracellular Ca2+ influx and whole-cell currents of nonselective cation channels were blocked by nuciferine. Together, the results indicate that nuciferine-induced relaxation in tracheal rings mainly occurred due to the inhibition of extracellular Ca2+ influx through the blockade of voltage-dependent L-type Ca2+ channels and/or nonselective cation channels. These results suggest that nuciferine has a therapeutic effect on respiratory diseases associated with the aberrant contraction of airway smooth muscles and/or bronchospasm.
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Affiliation(s)
- Xiao Yang
- Institute for Medical Biology and Hubei Provincial Key Laboratory for Protection and Application of Special Plant Germplasm in Wuling Area of China, College of Life Sciences, South-Central University for Nationalities, Wuhan, China
| | - Meng-Fei Yu
- Institute for Medical Biology and Hubei Provincial Key Laboratory for Protection and Application of Special Plant Germplasm in Wuling Area of China, College of Life Sciences, South-Central University for Nationalities, Wuhan, China
| | - Jun Lei
- Institute for Medical Biology and Hubei Provincial Key Laboratory for Protection and Application of Special Plant Germplasm in Wuling Area of China, College of Life Sciences, South-Central University for Nationalities, Wuhan, China
| | - Yong-Bo Peng
- Institute for Medical Biology and Hubei Provincial Key Laboratory for Protection and Application of Special Plant Germplasm in Wuling Area of China, College of Life Sciences, South-Central University for Nationalities, Wuhan, China
| | - Ping Zhao
- Institute for Medical Biology and Hubei Provincial Key Laboratory for Protection and Application of Special Plant Germplasm in Wuling Area of China, College of Life Sciences, South-Central University for Nationalities, Wuhan, China
| | - Lu Xue
- Institute for Medical Biology and Hubei Provincial Key Laboratory for Protection and Application of Special Plant Germplasm in Wuling Area of China, College of Life Sciences, South-Central University for Nationalities, Wuhan, China
| | - Weiwei Chen
- Institute for Medical Biology and Hubei Provincial Key Laboratory for Protection and Application of Special Plant Germplasm in Wuling Area of China, College of Life Sciences, South-Central University for Nationalities, Wuhan, China
| | - Li-Qun Ma
- Institute for Medical Biology and Hubei Provincial Key Laboratory for Protection and Application of Special Plant Germplasm in Wuling Area of China, College of Life Sciences, South-Central University for Nationalities, Wuhan, China
| | - Qing-Hua Liu
- Institute for Medical Biology and Hubei Provincial Key Laboratory for Protection and Application of Special Plant Germplasm in Wuling Area of China, College of Life Sciences, South-Central University for Nationalities, Wuhan, China
| | - Jinhua Shen
- Institute for Medical Biology and Hubei Provincial Key Laboratory for Protection and Application of Special Plant Germplasm in Wuling Area of China, College of Life Sciences, South-Central University for Nationalities, Wuhan, China
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Horng CT, Huang CW, Yang MY, Chen TH, Chang YC, Wang CJ. Nelumbo nucifera leaf extract treatment attenuated preneoplastic lesions and oxidative stress in the livers of diethylnitrosamine-treated rats. Environ Toxicol 2017; 32:2327-2340. [PMID: 28804948 DOI: 10.1002/tox.22434] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2016] [Revised: 04/26/2017] [Accepted: 04/26/2017] [Indexed: 06/07/2023]
Abstract
Lotus (Nelumbo nucifera Gaertn) possesses antioxidant, hepatoprotective, and anticancer potential. This study determined the protective role of aqueous extract from Nelumbo nucifera leaves (NLE) against N-diethylnitrosamine (DEN)-induced oxidative stress and hepatocellular carcinogenesis in a sample of Sprague-Dawley rats. NLE was fed orally to rats in which hepatic carcinoma was induced with DEN for 12 weeks. Five groups of 12 rats each were used for the study: Group I (control group) rats received distilled water; Group II rats were induced with DEN; Group III rats were induced with DEN and cotreated with 0.5% NLE; Group IV rats were induced with DEN and cotreated with 1.0% NLE; and Group V rats were induced with DEN and cotreated with 2.0% NLE. Clinical chemistry, organ weight, inflammatory marker, protein expression, enzyme, and antioxidant analyses were conducted. NLE administration to rats resulted in significantly decreased levels of serum alanine aminotransferase, aspartate aminotransferase, and albumin, which is indicative of hepatocellular damage, compared with the control group. DEN-induced oxidative stress was inhibited by NLE and this inhibition was paralleled by decreased lipid peroxides and increased glutathione transferase, superoxide dismutase, catalase, and glutathione peroxidase activity in liver tissues. The status of nonenzymatic antioxidants, such as reduced glutathione, was also found to be increased in NLE-administered rats. Furthermore, NLE decreased tumor size, hepatic Rac1, PKCα, and GSTπ expressions compared with the DEN-only group. Thus, supplementation of NLE reduced the adverse changes that occur because of liver cancer. These results prove that NLE protects against liver carcinogenesis induced because of treatment with DEN through blocking lipid peroxidation, hepatic cell damage, and enhancing the antioxidant defense system.
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Affiliation(s)
- Chi-Ting Horng
- Department of Ophthalmology, Kaohsiung Armed Forces General Hospital, Kaohsiung City, 802, Taiwan
- Institute of Biochemistry, Microbiology and Immunology, Medical College, Chung Shan Medical University, Taichung City, 402, Taiwan
| | - Chien-Wei Huang
- Division of Gastroenterology, Kaohsiung Armed Forces General Hospital, Kaohsiung City, 802, Taiwan
| | - Mon-Yuan Yang
- Institute of Biochemistry, Microbiology and Immunology, Medical College, Chung Shan Medical University, Taichung City, 402, Taiwan
| | - Tzu-Hsin Chen
- Institute of Biochemistry, Microbiology and Immunology, Medical College, Chung Shan Medical University, Taichung City, 402, Taiwan
| | - Yun-Ching Chang
- Institute of Biochemistry, Microbiology and Immunology, Medical College, Chung Shan Medical University, Taichung City, 402, Taiwan
- Department of Medical Research, Chung Shan Medical University Hospital, Taichung City, 402, Taiwan
| | - Chau-Jong Wang
- Institute of Biochemistry, Microbiology and Immunology, Medical College, Chung Shan Medical University, Taichung City, 402, Taiwan
- Department of Medical Research, Chung Shan Medical University Hospital, Taichung City, 402, Taiwan
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Yang X, Huang M, Yang J, Wang J, Zheng S, Ma X, Cai J, Deng S, Shu G, Yang G. Activity of Isoliensinine in Improving the Symptoms of Type 2 Diabetic Mice via Activation of AMP-Activated Kinase and Regulation of PPARγ. J Agric Food Chem 2017; 65:7168-7178. [PMID: 28745497 DOI: 10.1021/acs.jafc.7b01964] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
This study was designed to explore the effects and mechanism of isoliensinine (isolie) from embryos of Nelumbo nucifera on type 2 diabetes and dyslipidemia in vivo and in vitro. The in vitro study showed that isolie increased the GLUT4 translocation by 2.5-fold in L6 cells. Furthermore, after 4 weeks of treatment, the in vivo biochemical study indexes revealed that isolie had a positive effect on decreasing serum insulin level (42.2 ± 5.10 vs 55.7 ± 6.33 mU/L, P < 0.05) and reducing fast blood glucose (9.4 ± 1.5 vs 18.7 ± 2.3 mmol/L, P < 0.001) and body weight (37.8 ± 2.9 vs 46.9 ± 5.4 g, P < 0.05) compared with the KK-Ay model mice. Isolie treatment led to significant increases in GLUT4 proteins (∼2.7-fold in skeletal muscle and ∼2.4-fold in WAT) and phosphorylated AMP-activated protein kinase (∼1.4-fold in skeletal muscle, ∼3.1-fold in WAT, and ∼2.3-fold in liver). However, isolie caused a significant decrease in lipogenesis protein expressions of PPARγ and SREBP-1c, and decreased the activity of ACC by increasing the phospho-ACC level. Our findings showed that isolie has the potential to alleviate type 2 diabetes associated with hyperlipidemia in KK-Ay mice. Regulation of GLUT4, SREBP-1c, PPARγ, AMPK phosphorylation, and ACC phosphorylation is implicated in the antidiabetic effects of isolie.
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Affiliation(s)
- Xinzhou Yang
- School of Pharmaceutical Sciences, South-Central University for Nationalities , 182 Min-Zu Road, Wuhan 430074, China
| | - Mi Huang
- School of Pharmaceutical Sciences, South-Central University for Nationalities , 182 Min-Zu Road, Wuhan 430074, China
| | - Jie Yang
- School of Pharmaceutical Sciences, South-Central University for Nationalities , 182 Min-Zu Road, Wuhan 430074, China
| | - Jialin Wang
- School of Pharmaceutical Sciences, South-Central University for Nationalities , 182 Min-Zu Road, Wuhan 430074, China
| | - Sijian Zheng
- School of Pharmaceutical Sciences, South-Central University for Nationalities , 182 Min-Zu Road, Wuhan 430074, China
| | - Xinhua Ma
- School of Pharmaceutical Sciences, South-Central University for Nationalities , 182 Min-Zu Road, Wuhan 430074, China
| | - Jinyan Cai
- School of Pharmacy, Guangdong Pharmaceutical University , Guangzhou 510006, China
| | - Shihao Deng
- School of Pharmaceutical Sciences, South-Central University for Nationalities , 182 Min-Zu Road, Wuhan 430074, China
| | - Guangwen Shu
- School of Pharmaceutical Sciences, South-Central University for Nationalities , 182 Min-Zu Road, Wuhan 430074, China
| | - Guangzhong Yang
- School of Pharmaceutical Sciences, South-Central University for Nationalities , 182 Min-Zu Road, Wuhan 430074, China
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Tang X, Tang P, Liu L. Molecular Structure-Affinity Relationship of Flavonoids in Lotus Leaf (Nelumbo nucifera Gaertn.) on Binding to Human Serum Albumin and Bovine Serum Albumin by Spectroscopic Method. Molecules 2017. [PMID: 28644391 PMCID: PMC6152052 DOI: 10.3390/molecules22071036] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
Abstract
Lotus leaf has gained growing popularity as an ingredient in herbal formulations due to its various activities. As main functional components of lotus leaf, the difference in structure of flavonoids affected their binding properties and activities. In this paper, the existence of 11 flavonoids in lotus leaf extract was confirmed by High Performance Liquid Chromatography (HPLC) analysis and 11 flavonoids showed various contents in lotus leaf. The interactions between lotus leaf extract and two kinds of serum albumins (human serum albumin (HSA) and bovine serum albumin (BSA)) were investigated by spectroscopic methods. Based on the fluorescence quenching, the interactions between these flavonoids and serum albumins were further checked in detail. The relationship between the molecular properties of flavonoids and their affinities for serum albumins were analyzed and compared. The hydroxylation on 3 and 3’ position increased the affinities for serum albumins. Moreover, both of the methylation on 3’ position of quercetin and the C2=C3 double bond of apigenin and quercetin decreased the affinities for HSA and BSA. The glycosylation lowered the affinities for HSA and BSA depending on the type of sugar moiety. It revealed that the hydrogen bond force played an important role in binding flavonoids to HSA and BSA.
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Affiliation(s)
- Xiaosheng Tang
- Hubei Key Laboratory of Edible Wild Plants Conservation and Utilization & National Demonstration Center for Experimental Biology Education & College of Life Sciences, Hubei Key Laboratory of Pollutant Analysis & Reuse Technology, Hubei Normal University, Huangshi 435002, China.
| | - Ping Tang
- Institute of Bast Fiber Crops, Chinese Academy of Agricultural Sciences, Changsha 410205, China.
- School of Environmental Science and Engineering, Hubei Polytechnic University, Hubei Key Laboratory of Mine Environmental Pollution Control and Remediation, Huangshi 435003, China.
| | - Liangliang Liu
- Institute of Bast Fiber Crops, Chinese Academy of Agricultural Sciences, Changsha 410205, China.
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Li X, Sui Y, Wu Q, Xie B, Sun Z. Attenuated mTOR Signaling and Enhanced Glucose Homeostasis by Dietary Supplementation with Lotus Seedpod Oligomeric Procyanidins in Streptozotocin (STZ)-Induced Diabetic Mice. J Agric Food Chem 2017; 65:3801-3810. [PMID: 28314100 DOI: 10.1021/acs.jafc.7b00233] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
This study investigated the protective role of lotus seedpod oligomeric procyanidins (LSOPC) and synbiotics (Bifidobacterium Bb-12 and xylo-oligosaccharide) against high fat and streptozotocin (STZ)-induced diabetes. Administration of LSOPC or synbiotics had no effect on blood glucose in normal mice. Treatments with LSOPC for 12 weeks markedly reduced blood glucose, FFA, endotoxin, and GHbA1c and improved glucose homeostasis, lipid metabolism, and insulin levels. In addition, administration of LSOPC significantly reversed the increase of mTOR and p66Shc in liver, skeletal muscle, and white adipose tissue (WAT). LSOPC significantly increased glucose uptake and glycolysis in liver, skeletal muscle, and WAT while improving heat generation in brown adipose tissue (BAT) and inhibiting gluconeogenesis and lipogenesis in liver. Furthermore, synbiotics strengthened the improving effect of LSOPC. These findings demonstrated that LSOPC and synbiotics may regulate glucose disposal in peripheral target tissues through the p66Shc-mTOR signaling pathway.
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Affiliation(s)
- Xiaopeng Li
- College of Food Science and Technology, Huazhong Agricultural University , Wuhan 430070, China
| | - Yong Sui
- Institute for Farm Products Processing and Nuclear-Agricultural Technology, Hubei Academy of Agricultural Science , Wuhan 430064, China
| | - Qian Wu
- Hubei Collaborative Innovation Center for Industrial Fermentation, Hubei University of Technology , Wuhan 430068, China
| | - Bijun Xie
- College of Food Science and Technology, Huazhong Agricultural University , Wuhan 430070, China
| | - Zhida Sun
- College of Food Science and Technology, Huazhong Agricultural University , Wuhan 430070, China
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Ye LH, Kong LT, Yan MZ, Cao FR, Wang LS, Liao YH, Pan RL, Chang Q. Lotus leaf alkaloid fraction can strongly inhibit CYP2D6 isoenzyme activity. J Ethnopharmacol 2016; 194:913-917. [PMID: 27771456 DOI: 10.1016/j.jep.2016.10.055] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2016] [Revised: 10/06/2016] [Accepted: 10/18/2016] [Indexed: 06/06/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The Chinese herbal medicine He-Ye, the leaves of the lotus (Nelumbo nucifera) plant, is traditionally used in China for the treatment of sunstroke, thirst, diarrhea, and fever. Currently, the leaf is used not only as an herbal tea to reduce lipid level and control body weight, but also as a major ingredient in some lipid-lowering Chinese patented medicines. Our previous study demonstrated that the alkaloid fraction (AF) of the herb has a strong inhibitory effect on CYP2D6 isoenzyme activity in vitro. The present study aims to further verify this activity using the in vivo rat model and to explore the inhibitory mechanism on CYP2D6 using human liver microsomes (HLMs). MATERIALS AND METHODS After a continuous 7-d oral dose of AF (50mg/kg) or a vehicle, Sprague Dawley rats received a single intravenous dose of dextromethorphan or metoprolol. Blood samples were collected at various time points, and the plasma concentrations of the relevant metabolites dextrorphan and hydroxymetoprolol were assayed by LC-MS/MS for evaluating the effect of AF on their pharmacokinetics and CYP2D6 activity. Dextromethorphan as a probe at different concentrations was incubated with HLMs in an incubation buffer system, in the presence or absence of AF at different concentrations. After incubation, the produced metabolite was assayed. RESULTS After being pretreated with AF in rats, the plasma concentrations of dextrorphan and hydroxymetoprolol significantly decreased, with Cmax going from 79.44 to 29.96 and 151.18 to 83.39hng/mL (P<0.05), AUCall from 167.27 to 62.25 and 347.68 to 223.24hng/mL (P<0.05), and AUCinf from 183.39 to 84.76 and 350.59 to 234.57hng/mL (P<0.05), respectively, in comparison with those of untreated rats. The t1/2 of hydroxymetoprolol significantly increased from 1.14 to 1.99h (P<0.05). The in vitro incubation test showed that AF competitively inhibited the CYP2D6, with apparent Ki value of 0.64µg/mL. CONCLUSIONS AF can strongly inhibit the activity of CYP2D6 enzyme, as confirmed by in vivo and in vitro models. Possible drug interactions may occur between AF and other medications metabolized by CYP2D6. Thus, caution should be paid when the lotus leaf and its preparations are concurrently administered with conventional medicines.
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Affiliation(s)
- Lin-Hu Ye
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100193, China; Department of Pharmacy, The First People's Hospital of Bijie, Bijie 551700, China.
| | - Ling-Ti Kong
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100193, China.
| | - Ming-Zhu Yan
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100193, China.
| | - Fang-Rui Cao
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100193, China.
| | - Li-Sha Wang
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100193, China.
| | - Yong-Hong Liao
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100193, China.
| | - Rui-Le Pan
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100193, China.
| | - Qi Chang
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100193, China.
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Zheng Y, Wang Q, Zhuang W, Lu X, Miron A, Chai TT, Zheng B, Xiao J. Cytotoxic, Antitumor and Immunomodulatory Effects of the Water-Soluble Polysaccharides from Lotus (Nelumbo nucifera Gaertn.) Seeds. Molecules 2016; 21:E1465. [PMID: 27827862 PMCID: PMC6273249 DOI: 10.3390/molecules21111465] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2016] [Revised: 10/25/2016] [Accepted: 10/28/2016] [Indexed: 02/05/2023] Open
Abstract
Lotus is an edible and medicinal plant, and the extracts from its different parts exhibit various bioactivities. In the present study, the hot water-soluble polysaccharides from lotus seeds (LSPS) were evaluated for their cancer cell cytotoxicity, immunomodulatory and antitumor activities. LSPS showed significant inhibitory effects on the mouse gastric cancer MFC cells, human liver cancer HuH-7 cells and mouse hepatocarcinoma H22 cells. The animal studies showed that LSPS inhibited tumor growth in H22 tumor-bearing mice with the highest inhibition rate of 45.36%, which is comparable to that induced by cyclophosphamide (30 mg/kg) treatment (50.79%). The concentrations of white blood cells were significantly reduced in cyclophosphamide-treated groups (p < 0.01), while LSPS showed much fewer side effects according to the hematology analysis. LSPS improved the immune response in H22 tumor-bearing mice by enhancing the spleen and thymus indexes, and increasing the levels of serum cytokines including tumor necrosis factor-α and interleukin-2. Moreover, LSPS also showed in vivo antioxidant activity by increasing superoxide dismutase activity, thus reducing the malondialdehyde level in the liver tissue. These results suggested that LSPS can be used as an antitumor and immunomodulatory agent.
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Affiliation(s)
- Yafeng Zheng
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
| | - Qi Wang
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
- Institute of Agricultural Engineering, Fujian Academy of Agriculture Sciences, Fuzhou 350003, China.
| | - Weijing Zhuang
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
| | - Xu Lu
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
| | - Anca Miron
- Faculty of Pharmacy, Grigore T. Popa University of Medicine and Pharmacy Iasi, Universitatii Street, No. 16, Iasi 700115, Romania.
| | - Tsun-Thai Chai
- Department of Chemical Science, Faculty of Science, Universiti Tunku Abdul Rahman, Jalan Universiti Bandar Barat, Kampar 31900, Perak, Malaysia.
| | - Baodong Zheng
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
| | - Jianbo Xiao
- Institute of Chinese Medical Sciences, State Key Laboratory of Quality Research in Chinese Medicine, University of Macau, Taipa, Macau, China.
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Chen JY, Yang CY, Chen PY. Synthesis of hierarchically porous structured CaCO3 and TiO2 replicas by sol-gel method using lotus root as template. Mater Sci Eng C Mater Biol Appl 2016; 67:85-97. [PMID: 27287102 DOI: 10.1016/j.msec.2016.04.092] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2016] [Revised: 04/21/2016] [Accepted: 04/27/2016] [Indexed: 11/18/2022]
Abstract
Intensive attention has been put in mimicking the morphologies in nature owing to their uniqueness, complexity, and diversity. One of the effective approaches to mimic bio-morphologies is through biotemplating - the technique of using biological structures as template to reproduce intricate structure in other forms of materials. This work presents a facile sol-gel technique that can be widely used to convert various carbon-rich bio-structures into different materials. Lotus root, a biomorphic template with high porosity at varying length scales, was selected as the example to demonstrate this approach. The experiment was conducted by infiltrating precursors - titanium (IV) n-butoxide (TnBT) and acetic acid calcium solution - into the lotus root template under vacuum system, followed by calcination. After the treatment, the replicas were calcite CaCO3 and anatase TiO2. In both CaCO3 and TiO2 replicas, the intact structure of the template was preserved. In spite of the overall similarity of the CaCO3 and TiO2 lotus root replicas, some respective differences were found. TiO2 replica was covered with nanowire bundles of 100-200nm in diameter, formed by preferable crystallization of particles, while CaCO3 replica presented the gradient-distributed pores of 10-100μm, which greatly resembled the microstructure of lotus root template. In the BET result, TiO2 replica was mesoporous structure with pores centralizing in 3-4nm. On the other hand, CaCO3 replica had pores in a wider distribution ranging from micro to macro scale. In addition, the surface area was greatly enhanced in both cases. The synthesized materials with hierarchical biomorphic structures may have great potential for purification applications due to their large specific surface area, photocatalytic property, and high adsorption rate.
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Affiliation(s)
- Jui-Yi Chen
- Material Science and Engineering Department, National Tsing-Hua University, No. 101, Section 2, Kuang-Fu Road, Hsinchu30013, Taiwan ROC
| | - Ching-Yu Yang
- Material Science and Engineering Department, National Tsing-Hua University, No. 101, Section 2, Kuang-Fu Road, Hsinchu30013, Taiwan ROC
| | - Po-Yu Chen
- Material Science and Engineering Department, National Tsing-Hua University, No. 101, Section 2, Kuang-Fu Road, Hsinchu30013, Taiwan ROC.
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Chang CH, Ou TT, Yang MY, Huang CC, Wang CJ. Nelumbo nucifera Gaertn leaves extract inhibits the angiogenesis and metastasis of breast cancer cells by downregulation connective tissue growth factor (CTGF) mediated PI3K/AKT/ERK signaling. J Ethnopharmacol 2016; 188:111-122. [PMID: 27178635 DOI: 10.1016/j.jep.2016.05.012] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2016] [Revised: 04/07/2016] [Accepted: 05/06/2016] [Indexed: 06/05/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Nelumbo nucifera Gaertn (Nymphaeaceae) has been recognized as a medicinal plant, which was distributed throughout the Asia. The aqueous extract of Nelumbo nucifera leaves extract (NLE) has various biologically active components such as polyphenols, flavonoids, oligomeric procyanidines. However, the role of NLE in breast cancer therapy is poorly understood. THE AIM OF THIS STUDY The purpose of this study was to identify the hypothesis that NLE can suppress tumor angiogenesis and metastasis through CTGF (connective tissue growth factor), which has been implicated in tumor angiogenesis and progression in breast cancer MDA-MB-231 cells. RESULTS We examined the effects of NLE on angiogenesis in the chicken chorioallantoic membrane (CAM) model. The data showed that NLE could reduce the chorionic plexus at day 17 in CAM and the duration of this inhibition was dose-dependent. In Xenograft model, NLE treatment significantly reduced tumor weight and CD31 (capillary density) over control, respectively. We examined the role of angiogenesis involved restructuring of endothelium using human umbilical vein endothelial cell (HUVEC) in Matrigel angiogenesis model. The results indicated that vascular-like structure formation was further blocked by NLE treatment. Moreover, knockdown of CTGF expression markedly reduced the expression of MMP2 as well as VEGF, and attenuated PI3K-AKT-ERK activation, indication that these signaling pathways are crucial in mediating CTGF function. CONCLUSION The present results suggest that NLE might be useful for treatment in therapy-resistance triple negative breast cancer.
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Affiliation(s)
- Chun-Hua Chang
- Institute of Biochemistry, Microbiology and Immunology, Chung-Shan Medical University, No. 110, Section 1, Jiankuo North Road, Taichung 40201, Taiwan
| | - Ting-Tsz Ou
- Institute of Biochemistry, Microbiology and Immunology, Chung-Shan Medical University, No. 110, Section 1, Jiankuo North Road, Taichung 40201, Taiwan
| | - Mon-Yuan Yang
- Institute of Biochemistry, Microbiology and Immunology, Chung-Shan Medical University, No. 110, Section 1, Jiankuo North Road, Taichung 40201, Taiwan
| | - Chi-Chou Huang
- School of Medicine, Chung Shan Medical University, No. 110, Section 1, Jiankuo North Road, Taichung 40201, Taiwan; Department of Surgery, Division of Colon and Rectum, Chung Shan Medical University Hospital, No. 110, Sec. 1, Jianguo N. Road, Taichung 40201, Taiwan
| | - Chau-Jong Wang
- Institute of Biochemistry, Microbiology and Immunology, Chung-Shan Medical University, No. 110, Section 1, Jiankuo North Road, Taichung 40201, Taiwan; Department of Medical Research, Chung Shan Medical University Hospital, No. 110, Sec. 1, Jianguo N. Road, Taichung 40201, Taiwan.
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Xu L, Zhang X, Li Y, Lu S, Lu S, Li J, Wang Y, Tian X, Wei JJ, Shao C, Liu Z. Neferine induces autophagy of human ovarian cancer cells via p38 MAPK/ JNK activation. Tumour Biol 2016; 37:8721-9. [PMID: 26738868 DOI: 10.1007/s13277-015-4737-8] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2015] [Accepted: 12/22/2015] [Indexed: 10/22/2022] Open
Abstract
Ovarian cancer is the most lethal gynecological malignancy. Patients usually have poor prognosis because of late diagnosis, relapse, and chemoresistance. It is pressing to seek novel agent for the treatment of ovarian cancer. Neferine is a bisbenzylisoquinoline alkaloid isolated from the embryos of lotus (Nelumbo nucifera). In this study, we investigated the antitumor effect of neferine on ovarian cancer cells. We found that neferine exhibited growth-inhibitory effect on human ovarian cancer cells, whereas showing less cytotoxic to non-malignant fallopian tube epithelial cells. Furthermore, we demonstrated that neferine induced autophagy and inactivated the mTOR pathway. Finally, we found that both p38 MAPK and JNK signaling pathways were activated by neferine treatment and contributed to the induction of autophagy in ovarian cancer cells. In conclusion, our findings showed that neferine induced autophagy of human ovarian cancer cells via p38 MAPK/JNK activation. Neferine may be explored as a promising antitumoral agent in ovarian cancer.
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Affiliation(s)
- Limei Xu
- Department of Cell Biology, Shandong University School of Medicine, 44 Wenhua Xi Road, Jinan, Shandong, 250012, China
| | - Xiyu Zhang
- Ministry of Education Key Laboratory of Experimental Teratology and Department of Molecular Medicine and Genetics, Shandong University, Jinan, Shandong, China
| | - Yinuo Li
- Department of Cell Biology, Shandong University School of Medicine, 44 Wenhua Xi Road, Jinan, Shandong, 250012, China
| | - Shuhua Lu
- Hospital Information Center, People's Hospital of Rizhao, Rizhao, Shandong, China
| | - Shan Lu
- Department of Cell Biology, Shandong University School of Medicine, 44 Wenhua Xi Road, Jinan, Shandong, 250012, China
| | - Jieyin Li
- Department of Cell Biology, Shandong University School of Medicine, 44 Wenhua Xi Road, Jinan, Shandong, 250012, China
| | - Yuqiong Wang
- Department of Cell Biology, Shandong University School of Medicine, 44 Wenhua Xi Road, Jinan, Shandong, 250012, China
| | - Xiaoxue Tian
- Department of Cell Biology, Shandong University School of Medicine, 44 Wenhua Xi Road, Jinan, Shandong, 250012, China
| | - Jian-Jun Wei
- Department of Pathology, Northwestern University School of Medicine, Chicago, IL, USA
| | - Changshun Shao
- Ministry of Education Key Laboratory of Experimental Teratology and Department of Molecular Medicine and Genetics, Shandong University, Jinan, Shandong, China
| | - Zhaojian Liu
- Department of Cell Biology, Shandong University School of Medicine, 44 Wenhua Xi Road, Jinan, Shandong, 250012, China.
- Ministry of Education Key Laboratory of Experimental Teratology and Department of Molecular Medicine and Genetics, Shandong University, Jinan, Shandong, China.
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42
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Zhao W, Xie W, Du S, Yan S, Li J, Wang Q. Changes in physicochemical properties related to the texture of lotus rhizomes subjected to heat blanching and calcium immersion. Food Chem 2016; 211:409-14. [PMID: 27283649 DOI: 10.1016/j.foodchem.2016.05.075] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2015] [Revised: 05/09/2016] [Accepted: 05/12/2016] [Indexed: 11/19/2022]
Abstract
Pretreatments such as low temperature blanching and/or calcium soaking affect the cooked texture of vegetal food. In the work, lotus rhizomes (Nelumbo nucifera Gaertn.) were pretreated using the following 4 treatments, blanching at 40°C, blanching at 90°C, soaking in 0.5% CaCl2, and blanching at 40°C followed by immersion in 0.5% CaCl2. Subsequently, the cell wall material of pretreated samples was isolated and fractioned to identify changes in the degree of esterification (DE) and monosaccharide content of each section, and the texture of the lotus rhizomes in different pre-treatments was determined after thermal processing with different time. The results showed that the greatest hardness was obtained after blanching at 40°C in CaCl2, possibly attributing to the formation of a pectate calcium network, which maintains the integrity of cell walls. Furthermore, the content of galactose, rhamnose and arabinose decreased due to the breakage of sugar backbones and subsequent damage to cell walls. Our results may provide a reference for lotus rhizome processing.
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Affiliation(s)
- Wenlin Zhao
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, People's Republic of China; Aquatic Vegetables Preservation and Processing Technology Engineering Center of Hubei Province, Wuhan 430070, People's Republic of China
| | - Wei Xie
- Department of Biological & Chemical Engineering, Tongren University, Tongren 554300, People's Republic of China
| | - Shenglan Du
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, People's Republic of China; Aquatic Vegetables Preservation and Processing Technology Engineering Center of Hubei Province, Wuhan 430070, People's Republic of China
| | - Shoulei Yan
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, People's Republic of China; Aquatic Vegetables Preservation and Processing Technology Engineering Center of Hubei Province, Wuhan 430070, People's Republic of China.
| | - Jie Li
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, People's Republic of China; Aquatic Vegetables Preservation and Processing Technology Engineering Center of Hubei Province, Wuhan 430070, People's Republic of China
| | - Qingzhang Wang
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, People's Republic of China; Aquatic Vegetables Preservation and Processing Technology Engineering Center of Hubei Province, Wuhan 430070, People's Republic of China
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Deng X, Zhu L, Fang T, Vimolmangkang S, Yang D, Ogutu C, Liu Y, Han Y. Analysis of Isoquinoline Alkaloid Composition and Wound-Induced Variation in Nelumbo Using HPLC-MS/MS. J Agric Food Chem 2016; 64:1130-6. [PMID: 26800445 DOI: 10.1021/acs.jafc.5b06099] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Alkaloids are the most relevant bioactive components in lotus, a traditional herb in Asia, but little is known about their qualitative and quantitative distributions. Here, we report on the alkaloid composition in various lotus organs. Lotus laminae and embryos are rich in isoquinoline alkaloids, whereas petioles and rhizomes contain trace amounts of alkaloids. Wide variation of alkaloid accumulation in lamina and embryo was observed among screened genotypes. In laminae, alkaloid accumulation increases during early developmental stages, reaches the highest level at full size stage, and then decreases slightly during senescence. Vegetative and embryogenic tissues accumulate mainly aporphine-type and bisbenzylisoquinoline-type alkaloids, respectively. Bisbenzylisoquinoline-type alkaloids may be synthesized mainly in lamina and then transported into embryo via latex through phloem translocation. In addition, mechanical wounding was shown to induce significant accumulation of specific alkaloids in lotus leaves.
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Affiliation(s)
- Xianbao Deng
- Sino-African Joint Research Center, Chinese Academy of Sciences , Wuhan 430074, People's Republic of China
| | - Lingping Zhu
- Graduate University of Chinese Academy of Sciences , 19A Yuquanlu, Beijing 100049, People's Republic of China
| | - Ting Fang
- Graduate University of Chinese Academy of Sciences , 19A Yuquanlu, Beijing 100049, People's Republic of China
| | - Sornkanok Vimolmangkang
- Department of Pharmacognosy and Pharmaceutical Botany, Faculty of Pharmaceutical Sciences, Chulalongkorn University , Bangkok 10330, Thailand
| | | | - Collins Ogutu
- Graduate University of Chinese Academy of Sciences , 19A Yuquanlu, Beijing 100049, People's Republic of China
| | | | - Yuepeng Han
- Sino-African Joint Research Center, Chinese Academy of Sciences , Wuhan 430074, People's Republic of China
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Pangjit K, Udomsuk L, Upanan S, Pongjanta A, Chansiw N, Srichairatanakool S. Iron-Chelating and Anti-Hemolytic Properties of Ethanolic Extract of Lotus (Nelumbonucifera Gaertn) Leaves. J Med Assoc Thai 2016; 99 Suppl 1:S58-S66. [PMID: 26817240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
BACKGROUND Iron overload is the major consequence of blood transfusion in β-thalassemia patients. Redox iron plays a critical role in the formation of reactive oxygen species and subsequently leads to oxidative stress damage in many cells, especially red blood cells and hepatocytes. Iron deposition in hepatocytes is associated with fibrosis and cirrhosis. Polyphenolic compounds found in natural products are interesting iron chelators and antioxidants. OBJECTIVE This study aims to evaluate the iron-chelating properties and free-radical scavenging activities of lotus leaf extract in iron-loaded HepG2 cells. MATERIAL AND METHOD Lotus (Nelumbonucifera Gaertn) leaves were extracted with 80% (v/v) ethanol. The extract was examined for free-radical scavenging activity by using 2, 2-diphenyl-1-picrylhydrazyl assay (DPPH assay); iron-binding and anti-hemolytic activities using spectrophotometrical method. Iron-depriving activity of the extract was determined in iron loaded human hepatocellular (HepG2) cells using fluorescence technique. RESULTS The lotus extract showed antioxidant and anti-hemolytic activities in a concentration-dependent manner. Furthermore, it was able to bind iron rapidly and was saturated within 10 minute. With 24-hour treatment, this extract dose dependently decreased the level of labile iron pool in iron loaded HepG2 cells. CONCLUSION Lotus leaf extract had strong antioxidant activities, iron chelating properties on iron loaded HepG2 cells and anti-hemolytic activity.
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Prabsattroo T, Wattanathorn J, Somsapt P, Sritragool O. Positive Modulation of Pink Nelumbo nucifera Flowers on Memory Impairment, Brain Damage, and Biochemical Profiles in Restraint Rats. Oxid Med Cell Longev 2015; 2016:5789857. [PMID: 26858824 PMCID: PMC4686682 DOI: 10.1155/2016/5789857] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/30/2015] [Revised: 08/30/2015] [Accepted: 08/31/2015] [Indexed: 12/29/2022]
Abstract
Due to the crucial role of oxidative stress in the stress-induced memory deficit, the benefit of substance possessing antioxidant effect is focused. Since no data are available, we aimed to determine the effect of Nelumbo nucifera flowers extract on spatial memory and hippocampal damage in stressed rats. Male Wistar rats, weighing 250-350 g, were orally given N. nucifera extract at doses of 10, 10, and 200 mg·kg(-1) 45 minutes before the exposure to 12-hour restraint stress. The spatial memory and serum corticosterone were assessed at 7 and 14 days of study period. At the end of study, acetylcholinesterase (AChE), monoamine oxidase type A and monoamine oxidase type B (MAO-A and MAO-B), oxidative stress status, neuron density, and Ki67 expression in hippocampus were also assessed. The results showed that N. nucifera extract decreased memory deficit and brain damage, serum corticosterone, oxidative stress status, AChE, and MAO-A and MAO-B activities but increased neuron density and Ki67 expression in hippocampus. These suggested that the improved oxidative stress status, adult neurogenesis, and cholinergic and monoaminergic functions might be responsible for the protective effect against stress-related brain damage and dysfunction of the extract. Therefore, N. nucifera extract is the potential neuroprotective and memory enhancing agent. However, further researches are still required.
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Affiliation(s)
- Thawatchai Prabsattroo
- Department of Physiology and Graduate School (Neuroscience Program), Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand
- Integrative Complementary and Alternative Medicine Research and Development Center, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Jintanaporn Wattanathorn
- Integrative Complementary and Alternative Medicine Research and Development Center, Khon Kaen University, Khon Kaen 40002, Thailand
- Department of Physiology, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Pichet Somsapt
- Division of Nuclear Medicine, Department of Radiology, Faculty of Medicine, Khon Kaen University, Khon Kaen 40000, Thailand
| | - Opass Sritragool
- Division of Nuclear Medicine, Department of Radiology, Faculty of Medicine, Khon Kaen University, Khon Kaen 40000, Thailand
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Shu G, Yue L, Zhao W, Xu C, Yang J, Wang S, Yang X. Isoliensinine, a Bioactive Alkaloid Derived from Embryos of Nelumbo nucifera, Induces Hepatocellular Carcinoma Cell Apoptosis through Suppression of NF-κB Signaling. J Agric Food Chem 2015; 63:8793-8803. [PMID: 26389520 DOI: 10.1021/acs.jafc.5b02993] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Isoliensinine (isolie) is an alkaloid produced by the edible plant Nelumbo nucifera. Here, we unveiled that isolie was able to provoke HepG2, Huh-7, and H22 hepatocellular carcinoma (HCC) cell apoptosis. Isolie decreased NF-κB activity and constitutive phosphorylation of NF-κB p65 subunit at Ser536 in HCC cells. Overexpression of p65 Ser536 phosphorylation mimics abrogated isolie-mediated HCC cell apoptosis. Furthermore, intraperitoneal injection of isolie inhibited the growth of Huh-7 xenografts in nude mice. Additionally, isolie given by both intraperitoneal injection and gavage diminished the proliferation of transplanted H22 cells in Kunming mice. Reduced tumor growth in vivo was associated with inhibited p65 phosphorylation at Ser536 and declined NF-κB activity in tumor tissues. Finally, we revealed that isolie was bioavailable in the blood of mice and exhibited no detectable toxic effects on tumor-bearing mice. Our data provided strong evidence for the anti-HCC effect of isolie.
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Affiliation(s)
- Guangwen Shu
- College of Pharmacy, South-Central University for Nationalities , Wuhan, P. R. China
| | - Ling Yue
- Department of Endocrinology, Wuhan General Hospital of Guangzhou Military Command , Wuhan, P. R. China
| | - Wenhao Zhao
- College of Pharmacy, South-Central University for Nationalities , Wuhan, P. R. China
| | - Chan Xu
- College of Pharmacy, South-Central University for Nationalities , Wuhan, P. R. China
| | - Jing Yang
- College of Pharmacy, South-Central University for Nationalities , Wuhan, P. R. China
| | - Shaobing Wang
- College of Pharmacy, South-Central University for Nationalities , Wuhan, P. R. China
| | - Xinzhou Yang
- College of Pharmacy, South-Central University for Nationalities , Wuhan, P. R. China
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Shan F, Yuan Y, Kang LP, Huang LQ. [Study on chemical constituents in stems of Nelumbo nucifera by UPLC-ESI/Q-TOF-MS/MS]. Zhongguo Zhong Yao Za Zhi 2015; 40:3233-3238. [PMID: 26790299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
This paper employed UPLC-Electrospray Ionization /Quadrupole-Time of Flight-Mass /Mass Spectrometry( UPLC-ESI/Q-TOF-MS/MS) to analyze the chemical constituents in the stems of Nelumbo nucifera. The stems of N. nucifera were extracted with 75% methanol, and we applied an Agilent Zorbax SB-Aq column (2.1 mm x 100 mm, 1.8 μm) to UPLC analysis with water methanol-water( containing 0.05% formic acid) in gradient as mobile phase. The eluates were then detected by ESI-Q-TOF-MS/MS. Results indicated that 22 benzylisoquinoline alkaloids were indendified. Among them, one alkaloid may be a new compound and a component was found in the Lotus for the first time. We fully identify the composition of the Lotus stems for the first time, Which could provides theoretical foundation for further study and utilization of the medicinal resources.
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Liu JS, He YF, Gao SM, Zhang BG, Liu HT, Xiao PG. [Study on content determination of alkaloids and HPLC fingerprint of "Jianlian" Nelumbinis Plumula]. Zhongguo Zhong Yao Za Zhi 2015; 40:3239-3244. [PMID: 26790300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
This study is to determine the content of three alkaloids and establish the HPLC fingerprint of "Jianlian" Nelumbinis Plumula. The HPLC method of content determination was as follows: Thermo C18 (4. 6 mm x 250 mm, 5 μm) was conducted with acetonitrile-sodium dodecyl sulfonate solution-acetic acid (56: 43: 1) at a flow rate of 1.0 mL x min(-1). The monitoring wavelength was set at 282 nm and the column temperature was 35 degrees C. The method of HPLC fingerprint was as follows: Agilent ZORBAX SB-Aq C18 (4.6 mm x 250 mm, 5 μm) was conducted with gradient elution of methanol and water at a flow rate of 0.8 mL x min(-1), the monitoring wavelength was set at 282 nm and the column temperature was 35 degrees C. Similarities evaluation and hierarchical clustering analysis were applied to demonstrate the variability of 12 batches of "Jianlian" Nelumbinis Plumula samples. The results demonstrated that 11 batches showed good similarity on chemical constituents. The method could well display the chemical information of "Jianlian" Nelumbinis Plumula. It was simple, reliable and could be used for the chemical quality control of "Jianlian" Nelumbinis Plumula.
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Deng J, Fu Z, Chen S, Damaris RN, Wang K, Li T, Yang P. Proteomic and Epigenetic Analyses of Lotus (Nelumbo nucifera) Petals Between Red and White cultivars. Plant Cell Physiol 2015; 56:1546-55. [PMID: 26019267 DOI: 10.1093/pcp/pcv077] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2015] [Accepted: 05/22/2015] [Indexed: 05/22/2023]
Abstract
Lotus is a vital aquatic ornamental plant with different flower colors. To explore the flower coloration mechanism in lotus, the constituents and contents of pigments in two lotus cultivars with red and white flowers were analyzed. Although flavones and flavonols were detected in both cultivars, anthocyanins could only be detected in the red cultivar. A comparative proteomics analysis on the flower petals between these two cultivars was conducted. A total of 88 differentially expressed proteins were identified with 36 more abundant and 52 less abundant in the red than in the white cultivar. Among them, four enzymes involved in the anthocyanin pathway were identified, i.e. flavanone 3-hydroxylase, anthocyanidin synthase, anthocyanidin 3-O-glucosyltransferase and glutathione S-transferase. Analysis of the expression patterns of anthocyanin biosynthetic genes indicated that the anthocyanindin synthase (ANS) gene might be the critical gene determining anthocyanin biosynthesis and accumulation in lotus flower. Further analysis showed that different methylation intensities on the promoter sequence of the ANS gene might result in the different flower coloration in the red and white cultivar. This study provides new insights into the mechanism of flower coloration in lotus, and may be helpful in its breeding and germplasm enhancement.
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Affiliation(s)
- Jiao Deng
- Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, China University of Chinese Academy of Sciences, Beijing 100039, China
| | - Ziyang Fu
- Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, China University of Chinese Academy of Sciences, Beijing 100039, China
| | - Sha Chen
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Rebecca Njeri Damaris
- Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, China University of Chinese Academy of Sciences, Beijing 100039, China
| | - Kun Wang
- Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, China
| | - Tingting Li
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
| | - Pingfang Yang
- Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, China
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Grienke U, Mair CE, Saxena P, Baburin I, Scheel O, Ganzera M, Schuster D, Hering S, Rollinger JM. Human Ether-à-go-go Related Gene (hERG) Channel Blocking Aporphine Alkaloids from Lotus Leaves and Their Quantitative Analysis in Dietary Weight Loss Supplements. J Agric Food Chem 2015; 63:5634-5639. [PMID: 26035250 DOI: 10.1021/acs.jafc.5b01901] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Blockage of the human ether-à-go-go related gene (hERG) channel can result in life-threatening ventricular tachyarrhythmia. In an in vitro screening of herbal materials for hERG blockers using an automated two-microelectrode voltage clamp assay on Xenopus oocytes, an alkaloid fraction of Nelumbo nucifera Gaertn. (lotus) leaves induced ∼50% of hERG current inhibition at 100 μg/mL. Chromatographic separation resulted in the isolation and identification of (-)-asimilobine, 1, nuciferine, 2, O-nornuciferine, 3, N-nornuciferine, 4, and liensinine, 5. In agreement with in silico predicted ligand-target interactions, 2, 3, and 4 revealed distinct in vitro hERG blockages measured in HEK293 cells with IC50 values of 2.89, 7.91, and 9.75 μM, respectively. Because lotus leaf dietary weight loss supplements are becoming increasingly popular, the identified hERG-blocking alkaloids were quantitated in five commercially available products. Results showed pronounced differences in the content of hERG-blocking alkaloids ranging up to 992 μg (2) in the daily recommended dose.
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Affiliation(s)
- Ulrike Grienke
- †Institute of Pharmacy/Pharmacognosy, Center for Molecular Biosciences Innsbruck, University of Innsbruck, Innrain 80-82, 6020 Innsbruck, Austria
| | - Christina E Mair
- †Institute of Pharmacy/Pharmacognosy, Center for Molecular Biosciences Innsbruck, University of Innsbruck, Innrain 80-82, 6020 Innsbruck, Austria
| | | | | | - Olaf Scheel
- #Cytocentrics Bioscience GmbH, Tannenweg 22k, 18059 Rostock, Germany
| | - Markus Ganzera
- †Institute of Pharmacy/Pharmacognosy, Center for Molecular Biosciences Innsbruck, University of Innsbruck, Innrain 80-82, 6020 Innsbruck, Austria
| | - Daniela Schuster
- ⊥Institute of Pharmacy/Pharmaceutical Chemistry, Computer-Aided Molecular Design Group, Center for Molecular Biosciences Innsbruck, University of Innsbruck, Innrain 80-82, 6020 Innsbruck, Austria
| | | | - Judith M Rollinger
- †Institute of Pharmacy/Pharmacognosy, Center for Molecular Biosciences Innsbruck, University of Innsbruck, Innrain 80-82, 6020 Innsbruck, Austria
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