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Lan T, He S, Luo X, Pi Z, Lai W, Jiang C, Gan J, Wei S, Wu Z, Yun C, Leng J, Li C. Disruption of NADPH homeostasis by total flavonoids from Adinandra nitida Merr. ex Li leaves triggers ROS-dependent p53 activation leading to apoptosis in non-small cell lung cancer cells. JOURNAL OF ETHNOPHARMACOLOGY 2024; 332:118340. [PMID: 38762212 DOI: 10.1016/j.jep.2024.118340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Revised: 05/03/2024] [Accepted: 05/11/2024] [Indexed: 05/20/2024]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Adinandra nitida Merr. ex Li leaves serve as a herbal tea and hold a significant role in traditional Chinese medicine, being applied to assist in tumor treatment. Flavonoids present the primary bioactive constituents in Adinandra nitida Merr. ex Li leaves. AIM OF THE STUDY To explore the potential of total flavonoids from Adinandra nitida Merr. ex Li Leaves (TFAN) in inhibiting non-small cell lung cancer (NSCLC) and further elucidate the underlying mechanisms. MATERIALS AND METHODS Human NSCLC cell lines and normal lung cell line were employed to assess the impact of TFAN (0-160 μg/mL for 24, 28 and 72 h) on cell proliferation in vitro. Immunofluorescence (IF) staining gauged p53 expression changes in NSCLC cells under TFAN present condition (150 μg/mL for 24 h). In vivo study utilized NSCLC cell derived xenograft tumors in nude mice, administering TFAN orally (200 and 400 mg/kg) for 14 days. Immunohistochemistry assessed Cleaved Caspase 3 expression change in A549 xenograft tumors treated with TFAN (400 mg/kg for 14 days). RNA-seq and KEGG analysis identified gene expression changes and enriched processes in A549 xenograft tumors treated with TFAN. CM-H2DCFDA and metabolomics assessed ROS level and GSH/GSSG pool changes in A549 cells under TFAN present condition. Cell viability assay and IF staining assessed A549 cell proliferation and p53 expression changes under H2O2-induced oxidative stress (0-40 μM for 24 h) and TFAN present conditions. GSEA and N-Acetyl-L-cysteine (NAC) rescue (0-1 μM for 24 h) analyzed the impact of TFAN on GSH de novo synthesis. NADPH/NADP+ pool measurement and NADPH rescue (0-10 μM for 24 h) analyzed the impact of TFAN on GSH salvage synthesis. GC-FID and HPLC-MS were utilized to detect ethanol and ethyl acetate residues, and to characterize the chemical constituents in TFAN, respectively. The total flavonoid content of TFAN was determined using a 330 nm wavelength. RESULTS TFAN significantly inhibited A549 cells (wild-type p53) but not NCI-H1299 cells (p53-deficient), NCI-H596 cells (p53-mutant) or BEAS-2B in vitro. IF staining validated p53 genotype for the cell lines and revealed an increase in p53 expression in A549 cells after TFAN treatment. In vivo, TFAN selectively inhibited A549 xenograft tumor growth without discernible toxicity, inducing apoptosis evidenced by Cleaved Caspase 3 upregulation. RNA-seq and KEGG analysis suggested ROS biosynthesis was involved in TFAN-induced p53 activation in A549 cells. Elevated ROS level in TFAN-treated A549 cells were observed. Moreover, TFAN sensitized A549 cells to H2O2-induced oxidative stress, with higher p53 expression. Additionally, A549 cells compensated with GSH de novo synthesis under TFAN present condition, confirmed by GSEA and NAC rescue experiment. TFAN disrupted NADPH homeostasis to impair GSH salvage biosynthesis, supported by NADPH/NADP+ change and NADPH rescue experiment. The chemical constituents of TFAN, with acceptable limits for ethanol and ethyl acetate residues and a total flavonoid content of 68.87%, included Catechin, Epicatechin, Quercitroside, Camellianin A, and Apigenin. CONCLUSION The disruption of NADPH homeostasis by TFAN triggers ROS-dependent p53 activation that leads to apoptotic cell death, ultimately suppressing NSCLC growth. These findings offer potential therapeutic implications of Adinandra nitida Merr. ex Li leaves in combating NSCLC.
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Affiliation(s)
- Taijin Lan
- West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu 610041, China; Key Laboratory of Integrative Translational Medicine of Guangxi High Incidence Infectious Diseases, Nanning 530200, China; School of Preclinical Medicine, Guangxi University of Chinese Medicine, Nanning 530200, China
| | - Songhua He
- Guangxi Institute for Food and Drug Control, Nanning 530021, China
| | - Xuefei Luo
- School of Preclinical Medicine, Guangxi University of Chinese Medicine, Nanning 530200, China
| | - Zhenyu Pi
- School of Preclinical Medicine, Guangxi University of Chinese Medicine, Nanning 530200, China
| | - Weihui Lai
- School of Preclinical Medicine, Guangxi University of Chinese Medicine, Nanning 530200, China
| | - Chunhui Jiang
- School of Preclinical Medicine, Guangxi University of Chinese Medicine, Nanning 530200, China
| | - Jun Gan
- School of Preclinical Medicine, Guangxi University of Chinese Medicine, Nanning 530200, China
| | - Suyun Wei
- School of Preclinical Medicine, Guangxi University of Chinese Medicine, Nanning 530200, China
| | - Zhanshuai Wu
- School of Preclinical Medicine, Guangxi University of Chinese Medicine, Nanning 530200, China
| | - Chenxia Yun
- Key Laboratory of Integrative Translational Medicine of Guangxi High Incidence Infectious Diseases, Nanning 530200, China.
| | - Jing Leng
- Key Laboratory of Integrative Translational Medicine of Guangxi High Incidence Infectious Diseases, Nanning 530200, China.
| | - Changlong Li
- West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu 610041, China.
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Chen R, Lian Y, Wen S, Li Q, Sun L, Lai X, Zhang Z, Zhu J, Tang L, Xuan J, Yuan E, Sun S. Shibi Tea (Adinandra nitida) and Camellianin A Alleviate CCl4-Induced Liver Injury in C57BL-6J Mice by Attenuation of Oxidative Stress, Inflammation, and Apoptosis. Nutrients 2022; 14:nu14153037. [PMID: 35893891 PMCID: PMC9332116 DOI: 10.3390/nu14153037] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2022] [Revised: 07/08/2022] [Accepted: 07/16/2022] [Indexed: 02/01/2023] Open
Abstract
Liver injury is a significant public health issue nowadays. Shibi tea is a non-Camellia tea prepared from the dried leaves of Adinandra nitida, one of the plants with the greatest flavonoid concentration, with Camellianin A (CA) being the major flavonoid. Shibi tea is extensively used in food and medicine and has been found to provide a variety of health advantages. The benefits of Shibi tea and CA in preventing liver injury have not yet been investigated. The aim of this study was to investigate the hepatoprotective effects of extract of Shibi tea (EST) and CA in mice with carbon tetrachloride (CCl4)-induced acute liver injury. Two different concentrations of EST and CA were given to model mice by gavage for 3 days. Treatment with two concentrations of EST and CA reduced the CCl4-induced elevation of the liver index, liver histopathological injury score, alanine aminotransferase (ALT), and aspartate aminotransferase (AST). Western blotting and immunohistochemical analysis demonstrated that EST and CA regulated the oxidative stress signaling pathway protein levels of nuclear factor E2-related factor 2 (Nrf2)/heme-oxygenase-1 (HO-1), the expression of inflammatory cytokines, the phosphorylated nuclear factor-kappaB p65 (p-NF-κB)/nuclear factor-kappaB p65 (NF-κB) ratio, the phospho-p44/42 mitogen-activated protein kinase (p-MAPK), and the apoptosis-related protein levels of BCL2-associated X (Bax)/B cell leukemia/lymphoma 2 (Bcl2) in the liver. Taken together, EST and CA can protect against CCl4-induced liver injury by exerting antioxidative stress, anti-inflammation, and anti-apoptosis.
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Affiliation(s)
- Ruohong Chen
- Tea Research Institute, Guangdong Academy of Agricultural Sciences/Guangdong Key Laboratory of Tea Resources Innovation & Utilization, Guangzhou 510640, China; (R.C.); (S.W.); (Q.L.); (L.S.); (X.L.); (Z.Z.)
| | - Yingyi Lian
- School of Food Science and Engineering, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, Engineering Research Center of Starch and Plant Protein Deep Processing, Ministry of Education, South China University of Technology, Guangzhou 510641, China;
| | - Shuai Wen
- Tea Research Institute, Guangdong Academy of Agricultural Sciences/Guangdong Key Laboratory of Tea Resources Innovation & Utilization, Guangzhou 510640, China; (R.C.); (S.W.); (Q.L.); (L.S.); (X.L.); (Z.Z.)
| | - Qiuhua Li
- Tea Research Institute, Guangdong Academy of Agricultural Sciences/Guangdong Key Laboratory of Tea Resources Innovation & Utilization, Guangzhou 510640, China; (R.C.); (S.W.); (Q.L.); (L.S.); (X.L.); (Z.Z.)
| | - Lingli Sun
- Tea Research Institute, Guangdong Academy of Agricultural Sciences/Guangdong Key Laboratory of Tea Resources Innovation & Utilization, Guangzhou 510640, China; (R.C.); (S.W.); (Q.L.); (L.S.); (X.L.); (Z.Z.)
| | - Xingfei Lai
- Tea Research Institute, Guangdong Academy of Agricultural Sciences/Guangdong Key Laboratory of Tea Resources Innovation & Utilization, Guangzhou 510640, China; (R.C.); (S.W.); (Q.L.); (L.S.); (X.L.); (Z.Z.)
| | - Zhenbiao Zhang
- Tea Research Institute, Guangdong Academy of Agricultural Sciences/Guangdong Key Laboratory of Tea Resources Innovation & Utilization, Guangzhou 510640, China; (R.C.); (S.W.); (Q.L.); (L.S.); (X.L.); (Z.Z.)
| | - Junquan Zhu
- Guangdong Society of Plant Protection, Guangzhou 510640, China;
| | - Linsong Tang
- Taihongyuan Agriculture Co., Ltd., Xinyi, Maoming 525000, China;
| | - Ji Xuan
- Hospital of South China University of Technology, Guangzhou 510641, China;
| | - Erdong Yuan
- School of Food Science and Engineering, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, Engineering Research Center of Starch and Plant Protein Deep Processing, Ministry of Education, South China University of Technology, Guangzhou 510641, China;
- Correspondence: (E.Y.); (S.S.); Tel.: +86-20-8711-04218 (E.Y.); +86-20-8516-1045 (S.S.)
| | - Shili Sun
- Tea Research Institute, Guangdong Academy of Agricultural Sciences/Guangdong Key Laboratory of Tea Resources Innovation & Utilization, Guangzhou 510640, China; (R.C.); (S.W.); (Q.L.); (L.S.); (X.L.); (Z.Z.)
- Correspondence: (E.Y.); (S.S.); Tel.: +86-20-8711-04218 (E.Y.); +86-20-8516-1045 (S.S.)
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Wang D, Wang Y, Dong G, Shang Y, Lyu Y, Li F, Zhang C, Yu X. The chemical composition analysis of dwarf saltwort (
Salicornia bigelovii
Torr.) and its preservative effects on snakehead fish fillets. J FOOD PROCESS PRES 2022. [DOI: 10.1111/jfpp.16433] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Dujun Wang
- School of Marine and Bioengineering Yancheng Institute of Technology Yancheng China
| | - Yue Wang
- School of Marine and Bioengineering Yancheng Institute of Technology Yancheng China
| | - Guangsong Dong
- School of Marine and Bioengineering Yancheng Institute of Technology Yancheng China
| | - Yueling Shang
- School of Marine and Bioengineering Yancheng Institute of Technology Yancheng China
| | - Yongmei Lyu
- School of Marine and Bioengineering Yancheng Institute of Technology Yancheng China
| | - Fengwei Li
- School of Marine and Bioengineering Yancheng Institute of Technology Yancheng China
| | - Chunyin Zhang
- Yancheng Green Garden Saline Soil Agriculture Technology Co., Ltd Yancheng China
| | - Xiaohong Yu
- School of Marine and Bioengineering Yancheng Institute of Technology Yancheng China
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Complete chloroplast genome of novel Adrinandra megaphylla Hu species: molecular structure, comparative and phylogenetic analysis. Sci Rep 2021; 11:11731. [PMID: 34083611 PMCID: PMC8175739 DOI: 10.1038/s41598-021-91071-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Accepted: 05/21/2021] [Indexed: 12/26/2022] Open
Abstract
Adrinandra megaphylla Hu is a medicinal plant belonging to the Adrinandra genus, which is well-known for its potential health benefits due to its bioactive compounds. This study aimed to assemble and annotate the chloroplast genome of A. megaphylla as well as compare it with previously published cp genomes within the Adrinandra genus. The chloroplast genome was reconstructed using de novo and reference-based assembly of paired-end reads generated by long-read sequencing of total genomic DNA. The size of the chloroplast genome was 156,298 bp, comprised a large single-copy (LSC) region of 85,688 bp, a small single-copy (SSC) region of 18,424 bp, and a pair of inverted repeats (IRa and IRb) of 26,093 bp each; and a total of 51 SSRs and 48 repeat structures were detected. The chloroplast genome includes a total of 131 functional genes, containing 86 protein-coding genes, 37 transfer RNA genes, and 8 ribosomal RNA genes. The A. megaphylla chloroplast genome indicated that gene content and structure are highly conserved. The phylogenetic reconstruction using complete cp sequences, matK and trnL genes from Pentaphylacaceae species exhibited a genetic relationship. Among them, matK sequence is a better candidate for phylogenetic resolution. This study is the first report for the chloroplast genome of the A. megaphylla.
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Yuan C, Huang L, Suh JH, Wang Y. Bioactivity-Guided Isolation and Identification of Antiadipogenic Compounds in Shiya Tea (Leaves of Adinandra nitida). JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:6785-6791. [PMID: 31141356 DOI: 10.1021/acs.jafc.9b01326] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Obesity is a worldwide epidemic contributing to a higher risk of developing maladies such as type 2 diabetes, heart disease, and cancer. Shiya tea (leaves of Adinandra nitida), a traditional Chinese tea, is widely consumed due to its palatable flavor and various curative effects, such as reducing blood pressure and blood lipids, as well as anti-inflammation, etc. However, no relevant research on the antiobesity effects of Shiya tea has been reported. In particular, no health-benefiting compounds, other than flavonoids, in Shiya tea have been reported. Thus, 3T3-L1 preadipocytes have been used as a bioactivity-guided identification model to verify the inhibitory effects of Shiya tea on adipogenesis, as well as to identify antiadipogenic compounds. Four triterpenoid saponins (1-4), including one new compound (2α,3α-dihydroxyursolic acid 28- O-β-d-glucopyranosyl ester, compound 1), and a flavonoid (5) have been identified using NMR (1D and 2D NMR) and liquid chromatography (LC)-MS techniques. Compound 1, the major antiadipogenic constituent with an IC50 value of 27.6 μg/mL, has been identified for the first time in Shiya tea. To understand the structure-activity relationship, three hydrolytic compounds (1s, 2s, and 5s) were obtained to provide an inhibitory effect on lipid accumulation during 3T3-L1 adipocyte differentiation. The inhibitory effect of the triterpenoid (1s) possessing no sugar group decreased significantly, while the flavonoid (5s) also without a sugar group showed increased activity. In addition, the hydroxyl group position may also play a role in inhibitory efficacy.
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Affiliation(s)
- Chunmao Yuan
- Citrus Research and Education Center, Food Science and Human Nutrition , University of Florida , 700 Experiment Station Road , Lake Alfred , Florida 33850 , United States
- State Key Laboratory of Functions and Applications of Medicinal Plants , Guizhou Medical University , 3491 Baijin Road , Guiyang 550014 , P. R. China
| | - Linhua Huang
- Citrus Research and Education Center, Food Science and Human Nutrition , University of Florida , 700 Experiment Station Road , Lake Alfred , Florida 33850 , United States
- Citrus Research Institute , Southwest University , Xiema, Beibei , Chongqing 400712 , P. R. China
| | - Joon Hyuk Suh
- Citrus Research and Education Center, Food Science and Human Nutrition , University of Florida , 700 Experiment Station Road , Lake Alfred , Florida 33850 , United States
| | - Yu Wang
- Citrus Research and Education Center, Food Science and Human Nutrition , University of Florida , 700 Experiment Station Road , Lake Alfred , Florida 33850 , United States
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Chen QQ, Xi HL, Wang CY, Xu FG, Zhang W. Quantitation of camellianin A in HepG2 cells using a high performance liquid chromatography-electrospray ionization tandem mass spectrometric method. Chin J Nat Med 2017; 15:234-240. [PMID: 28411692 DOI: 10.1016/s1875-5364(17)30040-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2016] [Indexed: 11/17/2022]
Abstract
The present study was designed to develop a sensitive and selective high performance liquid chromatography-tandem mass spectrometric method for the determination of Camellianin A in HepG2 cells. The extraction of Camellianin A was achieved using 15% trichloroacetic acid and then separated on a C18 column interfaced with a triple quadrupole tandem mass spectrometer in multiple reaction monitoring mode. The mobile phase was consisted of methanol-water (0.1% formic acid) (55 : 45, V/V). The total run time was 5.0 min. The method was linear in the concentration range of 0.25-250.0 ng·mL-1. The lower limit of quantification was 0.25 ng·mL-1. The intra- and inter-day relative standard deviations of entire concentration range were less than 9.3%. The proposed HPLC-MS/MS method was successfully applied to detect the intracellular concentration of Camellianin A in HepG2 cells.
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Affiliation(s)
- Qian-Qian Chen
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau 999078, China
| | - Hai-Ling Xi
- School of Public Health, Baotou Medical College, Baotou 014060, China
| | - Cai-Yun Wang
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau 999078, China
| | - Feng-Guo Xu
- Key Laboratory of Drug Quality Control and Pharmacovigilance (Ministry of Education), China Pharmaceutical University, Nanjing 210009, China
| | - Wei Zhang
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau 999078, China.
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Chen Y, Ma X, Fu X, Yan R. Phytochemical content, cellular antioxidant activity and antiproliferative activity of Adinandra nitida tea (Shiyacha) infusion subjected to in vitro gastrointestinal digestion. RSC Adv 2017. [DOI: 10.1039/c7ra07429h] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
Adinandra nitida tea (Shiyacha) is a traditional eminent and flourishing tea with a long history in Southeast Asia.
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Affiliation(s)
- Yongsheng Chen
- Department of Food Science and Engineering
- Jinan University
- Guangzhou
- China
- School of Food Science and Engineering
| | - Xiang Ma
- Research School of Chemistry
- Institute of Advanced Studies
- The Australian National University
- Canberra
- Australia
| | - Xiong Fu
- School of Food Science and Engineering
- South China University of Technology
- Guangzhou
- China
| | - Rian Yan
- Department of Food Science and Engineering
- Jinan University
- Guangzhou
- China
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Zheng Y, Hu X, Zhai Y, Liu J, Wu G, Wu L, ShenTu J. Pharmacokinetics and tissue distribution study of camellianin A and its major metabolite in rats by liquid chromatography with tandem mass spectrometry. J Chromatogr B Analyt Technol Biomed Life Sci 2015; 997:200-9. [PMID: 26117310 DOI: 10.1016/j.jchromb.2015.06.012] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2015] [Revised: 06/09/2015] [Accepted: 06/13/2015] [Indexed: 12/13/2022]
Abstract
Camellianin A is a major active constituent of Adinandra nitida. A LC-MS/MS method for the determination of camellianin A and its metabolite (camellianin B) in rat plasma and tissues was developed and applied to a pharmacokinetics and tissue distribution study. Samples were separated on a Waters HSS T3 column with a mobile phase consisted of methanol and water (containing 0.1% formic acid). MS/MS detection was carried out on a triple-quadruple mass spectrometer under negative ESI mode. Pharmacokinetics study showed that camellianin A was rapidly eliminated with a t1/2 of 92.6±41.4h and CL of 3.19±0.471L/min/kg. Additionally, camellianin A showed a low oral bioavailability of 2.99% and a narrow tissue distribution; however, camellianin B was proved to have a wide tissue distribution with brain penetration. The data presented in this study provides useful information for the further applications of A. nitida and camellianin A.
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Affiliation(s)
- Yunliang Zheng
- Research Center for Clinical Pharmacy, State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, First Affiliated Hospital, Zhejiang University, Hangzhou 310003, China
| | - Xingjiang Hu
- Research Center for Clinical Pharmacy, State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, First Affiliated Hospital, Zhejiang University, Hangzhou 310003, China
| | - You Zhai
- Research Center for Clinical Pharmacy, State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, First Affiliated Hospital, Zhejiang University, Hangzhou 310003, China.
| | - Jian Liu
- Research Center for Clinical Pharmacy, State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, First Affiliated Hospital, Zhejiang University, Hangzhou 310003, China
| | - Guolan Wu
- Research Center for Clinical Pharmacy, State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, First Affiliated Hospital, Zhejiang University, Hangzhou 310003, China
| | - Lihua Wu
- Research Center for Clinical Pharmacy, State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, First Affiliated Hospital, Zhejiang University, Hangzhou 310003, China
| | - Jianzhong ShenTu
- Research Center for Clinical Pharmacy, State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, First Affiliated Hospital, Zhejiang University, Hangzhou 310003, China
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Chen Y, Chen G, Fu X, Liu RH. Phytochemical profiles and antioxidant activity of different varieties of Adinandra Tea (Adinandra Jack). JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2015; 63:169-176. [PMID: 25494237 DOI: 10.1021/jf503700v] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Consumption of plant foods has been negatively associated with the risk of developing chronic diseases, which is partly attributed to their rich and diverse phytochemicals. To promote the rational and effective application of Adinandra tea (Adinandra Jack), a traditional Chinese tea (Shiyacha) widely consumed as a health beverage, the complete phytochemical profile and antioxidant activity of four varieties of Adinandra tea were analyzed. They were rich in phenolics and flavonoids, ranging from 71.29 to 140.54 mg of gallic acid equivalent/g and from 19.13 to 88.72 mg of catechin equivalent/g, respectively. Their antioxidant capacities were high, as revealed by oxygen radical absorbance capacity, peroxyl radical scavenging capacity, and cellular antioxidant activity (CAA) assays. An obvious antiproliferation effect was observed in HepG2 and MCF-7 cells, with EC50 ranging from 1.05 to 6.44 mg/mL and from 2.26 to 8.02 mg/mL, respectively. Among the four varieties compared, Nitida and Millettii had a higher CAA value and antiproliferation activity, while Latifolia contained considerable bound phenolics.
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