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Li Y, Guo F, Wang W, Lv F, Zhang L, Zhu M, Yang S, Dong S, Zhou M, Li Z, Zhu Z, Yang JM, Zhang Y. Marein, a novel natural product for restoring chemo-sensitivity to cancer cells through competitive inhibition of ABCG2 function. Biochem Pharmacol 2024:116219. [PMID: 38643907 DOI: 10.1016/j.bcp.2024.116219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Revised: 04/05/2024] [Accepted: 04/16/2024] [Indexed: 04/23/2024]
Abstract
The pivotal roles of ATP-binding cassette (ABC) transporters in drug resistance have been widely appreciated. Here we report that marein, a natural product from Coreopsis tinctoria Nutt, is a potent chemo-sensitizer in drug resistant cancer cells overexpressing ABCG2 transporter. We demonstrate that marein can competitively inhibit efflux activity of ABCG2 protein and increase the intracellular accumulation of the chemotherapeutic drugs that belong to substrate of this transporter. We further show that marein can bind to the conserved amino acid residue F439 of ABCG2, a critical site for drug-substrate interaction. Moreover, marein can significantly sensitize the ABCG2-expressing tumor cells to chemotherapeutic drugs such as topotecan, mitoxantrone, and olaparib. This study reveals a novel role and mechanism of marein in modulating drug resistance, and may have important implications in treatment of cancers that are resistant to chemotherapeutic drugs that belong to the substrates of ABCG2 transporters.
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Affiliation(s)
- Yixuan Li
- Department of Pharmacy, Taicang TCM Hospital Affiliated to Nanjing University of Chinese Medicine (Taicang Hospital of Traditional Chinese Medicine), Jiangsu, China
| | - Fanfan Guo
- Department of Pharmacology, College of Pharmaceutical Sciences, Soochow University, Jiangsu, China
| | - Wenjing Wang
- Department of Pharmacy, The Affiliated Children's Hospital of Soochow University, Jiangsu, China
| | - FangLin Lv
- Department of Pharmacology, College of Pharmaceutical Sciences, Soochow University, Jiangsu, China
| | - Lu Zhang
- Department of Pharmacology, College of Pharmaceutical Sciences, Soochow University, Jiangsu, China
| | - Mingxian Zhu
- Department of Pharmacology, College of Pharmaceutical Sciences, Soochow University, Jiangsu, China
| | - Shumin Yang
- Department of Pharmacology, College of Pharmaceutical Sciences, Soochow University, Jiangsu, China
| | - Shunli Dong
- Department of Pharmacology, College of Pharmaceutical Sciences, Soochow University, Jiangsu, China
| | - Mingxuan Zhou
- Department of Pharmacology, College of Pharmaceutical Sciences, Soochow University, Jiangsu, China
| | - Zhenyun Li
- Department of Pharmacology, College of Pharmaceutical Sciences, Soochow University, Jiangsu, China
| | - Zengyan Zhu
- Department of Pharmacy, The Affiliated Children's Hospital of Soochow University, Jiangsu, China.
| | - Jin-Ming Yang
- Department of Cancer Biology and Toxicology, Markey Cancer Center, University of Kentucky, College of Medicine, Lexington, KY 40506, USA.
| | - Yi Zhang
- Department of Pharmacy, Taicang TCM Hospital Affiliated to Nanjing University of Chinese Medicine (Taicang Hospital of Traditional Chinese Medicine), Jiangsu, China; Department of Pharmacology, College of Pharmaceutical Sciences, Soochow University, Jiangsu, China.
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Yu YP, Lin KH, Shih MC, Chen CL, Lu CP. Optimization of aqueous extraction of antioxidants from Chrysanthemum (C. morifolium Ramat and C. indicum L.) flowers and evaluation of their protection from glycoxidation damage on human αA-crystallin. Exp Eye Res 2023; 235:109629. [PMID: 37625574 DOI: 10.1016/j.exer.2023.109629] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2023] [Accepted: 08/21/2023] [Indexed: 08/27/2023]
Abstract
Chrysanthemum tea is commonly consumed by Chinese consumers mainly due to the Chrysanthemum flower being a potential source of antioxidants. The current study investigates the effects of extraction time and temperature on Chrysanthemum flower aqueous extract (CFAE) antioxidant capacity, including Trolox equivalent antioxidant capacity (TEAC), ferrous iron-chelating activity, and superoxide radical scavenging capacity (SRSC) using a two-factor, three-level factorial design of the response surface method (RSM). The TEAC and SRSC of CFAE are higher at higher temperatures and longer times up to a certain point, and the highest TEAC and SRSC are achieved at a 100 °C extraction temperature for 45 min. The fructose induced-αA-crystallin (Cry) glycation model system was used to evaluate the effects of the CFAE on anti-glycoxidation activities. The antioxidant ingredients obtained from CFAE significantly impede the production of advanced glycation end products from protein glycoxidation products (dityrosine, kynurenine, and N'-methylkynurenine) in the glycation process of αA-Cry and exhibit strong anti-glycating activity. The glycation inhibitory effects of CFAE are concentration-dependent. C. indicum L. exhibits greater potential for preventing cataracts compared to C. morifolium Ramat CFAE's antioxidant and anti-glycation properties suggest its potential application as a natural ingredient in the development of agents to combat glycation.
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Affiliation(s)
- Yi-Ping Yu
- Department of Nutrition and Health Sciences, Chinese Culture University, Taipei, 11114, Taiwan
| | - Kuan-Hung Lin
- Department of Horticulture and Biotechnology, Chinese Culture University, Taipei, 11114, Taiwan
| | - Ming-Chih Shih
- Department of Nutrition and Health Sciences, Chinese Culture University, Taipei, 11114, Taiwan
| | - Chen-Lin Chen
- Department of Food Science, Fu Jen Catholic University, New Taipei City, 24205, Taiwan
| | - Chun-Ping Lu
- Department of Food Science, Fu Jen Catholic University, New Taipei City, 24205, Taiwan.
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3
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Wang L, Wu Q, Wang RQ, Wang RZ, Wang J. Protection of leukemia inhibitory factor against high-glucose-induced human retinal endothelial cell dysfunction. Arch Physiol Biochem 2023; 129:33-40. [PMID: 32658632 DOI: 10.1080/13813455.2020.1792506] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
PURPOSE In the study, we aimed to explore the mechanism of leukaemia inhibitory factor (LIF) affects hyperglycaemic induced retinopathy by regulating CaMKII-CREB pathway. METHODS Human retinal endothelial cell (HRECs) induced by high glucose to simulate one of the pathogenesis in the diabetic retinopathy (DR) model. After LIF treatment, cell viability was detected by CCK-8 and apoptosis was detected by flow cytometry. Angiogenesis was detected by in vitro tube formation. The expression levels of inflammatory, angiogenesis related proteins and CaMKII-CREB were detected by western blot. The gene level of angiogenesis was detected by qRT-PCR. HE staining was used to detect pathological changes of retinopathy in diabetic mice after LIF treatment. RESULTS Our results showed that LIF significantly increased hyperglycaemic-induced cell viability and inhibited apoptosis. Western blot results showed that LIF could down-regulate the expression levels of inflammatory cytokines such as IL-1β, IL-6 and TNF-α. In addition, angiogenesis of HRECs was inhibited by LIF in tubulisation experiments. LIF can down-regulate protein and gene levels of VEGF and HIF-1α via western blot and qRT-PCR. In diabetic mice induced by STZ, LIF could down-regulate the protein level of VEGF, HIF-1α, p-CaMKII and p-CREB, which suggest that LIF could inhibit retinal angiogenesis in diabetic mice. The results of HE staining showed that LIF could alleviate the damage of retinopathy in diabetic mice. CONCLUSION LIF could alleviate the damage of diabetic retinopathy by modulating the CaMKII/CREB signalling pathway to inhibit inflammatory response and angiogenesis.
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Affiliation(s)
- Lei Wang
- The 2nd Ward of Ophthalmological, First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Qiong Wu
- Visual Optical Center, First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Rui Qi Wang
- The 2nd Ward of Ophthalmological, First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Run Ze Wang
- The 2nd Ward of Ophthalmological, First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Jianwen Wang
- The 2nd Ward of Ophthalmological, First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
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Han H, Ma R, Xie A, Gao J, Wang Z, Zhao Y, Pang H, Zhang W. Development of an LC/MS/MS Method for Simultaneous Detection of 11 Polyphenols in Rat Plasma and Its Pharmacokinetic Application after Oral Administration of Coreopsis tinctoria Extract. Chem Biodivers 2023; 20:e202200574. [PMID: 36382445 DOI: 10.1002/cbdv.202200574] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Accepted: 11/15/2022] [Indexed: 11/17/2022]
Abstract
Eleven polyphenols, classified as flavonoid glycosides, flavonoid aglycones, and phenolic acids, are important bioactive components in the capitula of Coreopsis tinctoria (CCT). Nevertheless, their full pharmacokinetic profiles have not been demonstrated simultaneously. Therefore, a liquid chromatography - tandem mass spectrometry (LC/MS/MS) method was developed in the present work and used it to study the pharmacokinetics of these 11 compounds. We performed LC/MS/MS with a gradient mobile phase composed of water containing 0.1 % formic acid and acetonitrile containing 0.1 % formic acid on a Proshell 120 SB C18 column (2.1 mm×100 mm, 2.7 μm). We achieved a good chromatographic peak shape, resolution, and mass signal response, and multiple reaction monitoring facilitated the simultaneous detection of 11 analytes. In addition, we validated the selectivity, correlation coefficient, precision, extraction recovery, matrix effects, and stability of the LC/MS/MS method to be acceptable for 11 analytes in rat plasma. Subsequently, rats were orally administered with 50 % ethanol eluent of CCT (ECCT). Nine of 11 polyphenols were absorbed quickly (except for QCD and TCA), and their plasma levels peaked within 40 min. The exposure and Cmax values of flavonoid glycosides and phenolic acids were lower than those of flavonoid aglycones. This is the first report to demonstrate the pharmacokinetics of 11 polyphenols in ECCT, which may play an important role in future studies of the bioactive components of ECCT and their bioactive mechanisms.
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Affiliation(s)
- Haixia Han
- College of Food Science and Pharmacy, Xinjiang Agricultural University, Xinjiang, 830052, China
| | - Rui Ma
- College of Food Science and Pharmacy, Xinjiang Agricultural University, Xinjiang, 830052, China
| | - Aidi Xie
- College of Food Science and Pharmacy, Xinjiang Agricultural University, Xinjiang, 830052, China
| | - Juanjuan Gao
- College of Food Science and Pharmacy, Xinjiang Agricultural University, Xinjiang, 830052, China
| | - Zhen Wang
- College of Food Science and Pharmacy, Xinjiang Agricultural University, Xinjiang, 830052, China
| | - Yi Zhao
- College of Food Science and Pharmacy, Xinjiang Agricultural University, Xinjiang, 830052, China
| | - Huanming Pang
- College of Food Science and Pharmacy, Xinjiang Agricultural University, Xinjiang, 830052, China
| | - Wei Zhang
- School of Public Health and Emergency Management, Southern University of Science and Technology, Shenzhen, 518055, Guangdong, China
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Rahman MDH, Biswas P, Dey D, Hannan MA, Sahabuddin M, Araf Y, Kwon Y, Emran TB, Ali MS, Uddin MJ. An In-Silico Identification of Potential Flavonoids against Kidney Fibrosis Targeting TGFβR-1. Life (Basel) 2022; 12:1764. [PMID: 36362919 PMCID: PMC9694304 DOI: 10.3390/life12111764] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2022] [Revised: 10/25/2022] [Accepted: 10/27/2022] [Indexed: 09/01/2023] Open
Abstract
Fibrosis is a hallmark of progressive kidney diseases. The overexpression of profibrotic cytokine, namely transforming growth factor β (TGF-β) due to excessive inflammation and tissue damage, induces kidney fibrosis. The inhibition of TGF-β signaling is markedly limited in experimental disease models. Targeting TGF-β signaling, therefore, offers a prospective strategy for the management of kidney fibrosis. Presently, the marketed drugs have numerous side effects, but plant-derived compounds are relatively safer and more cost-effective. In this study, TGFβR-1 was targeted to identify the lead compounds among flavonoids using various computational approaches, such as ADME/T (absorption, distribution, metabolism, and excretion/toxicity) analysis, molecular docking, and molecular dynamics simulation. ADME/T screening identified a total of 31 flavonoids with drug-like properties of 31 compounds, a total of 5 compounds showed a higher binding affinity to TGFβR-1, with Epicatechin, Fisetin, and Luteolin ranking at the top three (-13.58, -13.17, and -10.50 kcal/mol, respectively), which are comparable to the control drug linagliptin (-9.074 kcal/mol). The compounds also exhibited outstanding protein-ligand interactions. The molecular dynamic simulations revealed a stable interaction of these compounds with the binding site of TGFβR-1. These findings indicate that flavonoids, particularly Epicatechin, Fisetin, and Luteolin, may compete with the ligand-binding site of TGFβR-1, suggesting that these compounds can be further evaluated for the development of potential therapeutics against kidney fibrosis. Further, in-vitro and in-vivo studies are recommended to support the current findings.
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Affiliation(s)
- MD. Hasanur Rahman
- ABEx Bio-Research Center, East Azampur, Dhaka 1230, Bangladesh
- Department of Biotechnology and Genetic Engineering, Faculty of Life Sciences, Bangabandhu Sheikh Mujibur Rahman Science and Technology University, Gopalganj 8100, Bangladesh
| | - Partha Biswas
- ABEx Bio-Research Center, East Azampur, Dhaka 1230, Bangladesh
- Laboratory of Pharmaceutical Biotechnology and Bioinformatics, Department of Genetic Engineering and Biotechnology, Jashore University of Science and Technology, Jashore 7408, Bangladesh
| | - Dipta Dey
- ABEx Bio-Research Center, East Azampur, Dhaka 1230, Bangladesh
- Department of Biochemistry and Molecular Biology, Faculty of Life Sciences, Bangabandhu Sheikh Mujibur Rahman Science and Technology University, Gopalganj 8100, Bangladesh
| | - Md. Abdul Hannan
- ABEx Bio-Research Center, East Azampur, Dhaka 1230, Bangladesh
- Department of Biochemistry and Molecular Biology, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh
| | - Md. Sahabuddin
- Department of Biotechnology and Genetic Engineering, Faculty of Life Sciences, Bangabandhu Sheikh Mujibur Rahman Science and Technology University, Gopalganj 8100, Bangladesh
| | - Yusha Araf
- Department of Genetic Engineering and Biotechnology, School of Life Sciences, Shahjalal University of Science and Technology, Sylhet 3114, Bangladesh
| | - Youngjoo Kwon
- Graduate School of Pharmaceutical Sciences, College of Pharmacy, Ewha Womans University, Seoul 03760, Korea
| | - Talha Bin Emran
- Department of Pharmacy, BGC Trust University Bangladesh, Chittagong 4381, Bangladesh
- Department of Pharmacy, Faculty of Allied Health Sciences, Daffodil International University, Dhaka 1207, Bangladesh
| | - Md. Sarafat Ali
- Department of Biotechnology and Genetic Engineering, Faculty of Life Sciences, Bangabandhu Sheikh Mujibur Rahman Science and Technology University, Gopalganj 8100, Bangladesh
| | - Md Jamal Uddin
- ABEx Bio-Research Center, East Azampur, Dhaka 1230, Bangladesh
- Graduate School of Pharmaceutical Sciences, College of Pharmacy, Ewha Womans University, Seoul 03760, Korea
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Dendrobium Mixture Ameliorates Diabetic Nephropathy in db/db Mice by Regulating the TGF- β1/Smads Signaling Pathway. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2021; 2021:9931983. [PMID: 34630622 PMCID: PMC8497096 DOI: 10.1155/2021/9931983] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Revised: 07/19/2021] [Accepted: 09/17/2021] [Indexed: 12/26/2022]
Abstract
Dendrobium mixture (DMix) is an effective treatment for diabetic nephropathy (DN), but the molecular mechanism underlying its action remains unclear. In this study, we investigated whether DMix regulates the transforming growth factor-β1 (TGF-β1)/Smads signal transduction pathway. Twenty-four db/db mice were randomly divided into three groups: the model, DMix, and gliquidone groups, while eight db/m mice were selected as the normal control group. The drug was administered by continuous gavage for 8 weeks. Body weight (BW), kidney weight (KW), kidney index, fasting blood glucose (FBG), blood lipid, 24-hour urinary albumin excretion rate, blood urea nitrogen, and serum creatinine levels were measured. Pathological changes in the renal tissue were observed under a light microscope. Real-time quantitative PCR and immunohistochemical staining were used to detect the mRNA and protein expression levels of TGF-β1 and alpha-smooth muscle actin (α-SMA), respectively, in renal tissues. TGF-β1, Smad2, p-Smad2, Smad3, p-Smad3, and α-SMA expression levels were measured using western blotting. The results showed that DMix significantly reduced the FBG level, BW, KW, and blood lipid level and improved renal function in db/db mice. Histopathology showed that DMix alleviated glomerular mesangial cell proliferation and renal interstitial fibrosis in db/db mice. Additionally, DMix reduced the protein and mRNA expression levels of TGF-β1 and α-SMA and inhibited Smad2 and Smad3 phosphorylation. We conclude that DMix may inhibit renal fibrosis and delay the progression of DN by regulating the TGF-β1/Smads signaling pathway.
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Yan LJ. NADH/NAD + Redox Imbalance and Diabetic Kidney Disease. Biomolecules 2021; 11:biom11050730. [PMID: 34068842 PMCID: PMC8153586 DOI: 10.3390/biom11050730] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Revised: 05/11/2021] [Accepted: 05/12/2021] [Indexed: 12/11/2022] Open
Abstract
Diabetic kidney disease (DKD) is a common and severe complication of diabetes mellitus. If left untreated, DKD can advance to end stage renal disease that requires either dialysis or kidney replacement. While numerous mechanisms underlie the pathogenesis of DKD, oxidative stress driven by NADH/NAD+ redox imbalance and mitochondrial dysfunction have been thought to be the major pathophysiological mechanism of DKD. In this review, the pathways that increase NADH generation and those that decrease NAD+ levels are overviewed. This is followed by discussion of the consequences of NADH/NAD+ redox imbalance including disruption of mitochondrial homeostasis and function. Approaches that can be applied to counteract DKD are then discussed, which include mitochondria-targeted antioxidants and mimetics of superoxide dismutase, caloric restriction, plant/herbal extracts or their isolated compounds. Finally, the review ends by pointing out that future studies are needed to dissect the role of each pathway involved in NADH-NAD+ metabolism so that novel strategies to restore NADH/NAD+ redox balance in the diabetic kidney could be designed to combat DKD.
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Affiliation(s)
- Liang-Jun Yan
- Department of Pharmaceutical Sciences, College of Pharmacy, University of North Texas Health Science Center, Fort Worth, TX 76107, USA
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Shen J, Hu M, Tan W, Ding J, Jiang B, Xu L, Hamulati H, He C, Sun Y, Xiao P. Traditional uses, phytochemistry, pharmacology, and toxicology of Coreopsis tinctoria Nutt.: A review. JOURNAL OF ETHNOPHARMACOLOGY 2021; 269:113690. [PMID: 33309917 DOI: 10.1016/j.jep.2020.113690] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Revised: 11/25/2020] [Accepted: 12/08/2020] [Indexed: 06/12/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Coreopsis tinctoria Nutt. (family Asteraceae) is an important traditional medicine in North America, Europe, and Asia for quite a long historical period, which has received great attention due to its health-benefiting activities, including disinfection, treatment sexual infection, diarrhoea, acute and chronic dysentery, red-eye swelling as well as pain, heat, thirst, hypertension, palpitation, gastrointestinal discomfort, and loss of appetite. AIM OF THE REVIEW The purpose of this review is to give an overview of the current phytochemistry and pharmacological activities of C. tinctoria, and reveals the correlation among its traditional uses, phytochemistry, pharmacological profile, and potential toxicity. MATERIALS AND METHODS This review is based on published studies and books from electronic sources and library, including the online ethnobotanical database, ethnobotanical monographs, Scopus, SciFinder, Baidu Scholar, CNKI, and PubMed. These reports are related to the traditional uses, phytochemistry, pharmacology, and toxicology of C. tinctoria. RESULTS Coreopsis tinctoria is traditionally used in diarrhoea, infection, and chronic metabolic diseases. From 1954 to now, more than 120 chemical constituents have been identified from C. tinctoria, such as flavonoids, polyacetylenes, polysaccharides, phenylpropanoids, and volatile oils. Flavonoids are the major bioactive components in C. tinctoria. Current research has shown that its extracts and compounds possess diverse biological and pharmacological activities such as antidiabetes, anti-cardiovascular diseases, antioxidant, anti-inflammatory, protective effects on organs, neuroprotective effects, antimicrobial, and antineoplastic. Studies in animal models, including acute toxicity, long-term toxicity, and genotoxicity have demonstrated that Snow Chrysanthemum is a non-toxic herb, especially for its water-soluble parts. CONCLUSIONS Recent findings regarding the main phytochemical and pharmacological properties of C. tinctorial have confirmed its traditional uses in anti-infection and treatment of chronic metabolic disease and, more importantly, have revealed the plant as a valuable medicinal plant resource for the treatment of a wide range of diseases. The available reports indicated that most of the bioactivities in C. tinctorial could be attributed to flavonoids. However, higher quality studies on animals and humans studies are required to explore the efficacy and mechanism of action of C. tinctoria in future.
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Affiliation(s)
- Jie Shen
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, 100193, China.
| | - Mengyin Hu
- Xinjiang Key Laboratory for Uighur Medicines, Xinjiang Institute of Materia Medica, Urumqi, 830004, China.
| | - Wei Tan
- Xinjiang Key Laboratory for Uighur Medicines, Xinjiang Institute of Materia Medica, Urumqi, 830004, China.
| | - Jiwei Ding
- Xinjiang Key Laboratory for Uighur Medicines, Xinjiang Institute of Materia Medica, Urumqi, 830004, China; CAMS Key Laboratory of Antiviral Drug Research, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, 100050, China.
| | - Baoping Jiang
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, 100193, China.
| | - Lei Xu
- Xinjiang Key Laboratory for Uighur Medicines, Xinjiang Institute of Materia Medica, Urumqi, 830004, China.
| | - Hasimu Hamulati
- Xinjiang Key Laboratory for Uighur Medicines, Xinjiang Institute of Materia Medica, Urumqi, 830004, China.
| | - Chunnian He
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, 100193, China; Xinjiang Key Laboratory for Uighur Medicines, Xinjiang Institute of Materia Medica, Urumqi, 830004, China.
| | - Yuhua Sun
- Xinjiang Key Laboratory for Uighur Medicines, Xinjiang Institute of Materia Medica, Urumqi, 830004, China.
| | - Peigen Xiao
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, 100193, China.
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Yu Q, Chen W, Zhong J, Qing D, Yan C. Structural elucidation of three novel oligosaccharides from Kunlun Chrysanthemum flower tea and their bioactivities. Food Chem Toxicol 2021; 149:112032. [PMID: 33529680 DOI: 10.1016/j.fct.2021.112032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Revised: 12/22/2020] [Accepted: 01/26/2021] [Indexed: 12/23/2022]
Abstract
Coreopsis tinctoria is commonly called Kunlun Chrysanthemum and a plateau plant with tremendous commercial value in functional tea and medicinal applications. In folk medicine, Kunlun Chrysanthemum flower is often used as an adjunctive therapy for diabetes and Alzheimer's disease. To further explore the chemicals responsible for the health benefits of Kunlun Chrysanthemum flowers, three homogeneous oligosaccharides, CT70-1A, CT70-1B and CT70-2 were isolated, and their detailed structures were determined from chemical and spectral analyses. The three oligosaccharides were composed of glucose, mannose, galactose, and arabinose in different ratios. They showed dose-dependent α-amylase and α-glucosidase inhibitory effects. In addition, they showed NO production inhibitory activities in BV2 cells, with IC50 values of 0.23, 0.24 and 0.27 mM, respectively. Taken together, these results suggested that Kunlun Chrysanthemum oligosaccharides might ameliorate hyperglycemia and neuroinflammation, which could prevent the development of diseases such as type 2 diabetes and Alzheimer's disease. This study provides chemical and bioactive perspectives that support the consumption of Kunlun Chrysanthemum flower tea for health benefits.
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Affiliation(s)
- Qian Yu
- Clinical Pharmacy of the First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, 510060, China; School of Clinical Pharmacy, Guangdong Pharmaceutical University, Guangzhou, 510006, China
| | - Wei Chen
- Clinical Pharmacy of the First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, 510060, China
| | - Jing Zhong
- Clinical Pharmacy of the First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, 510060, China
| | - Degang Qing
- Xinjiang Institute of Traditional Chinese Medicine and Ethnodrug, Urumqi, 830002, China
| | - Chunyan Yan
- Clinical Pharmacy of the First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, 510060, China; School of Clinical Pharmacy, Guangdong Pharmaceutical University, Guangzhou, 510006, China.
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Marein ameliorates diabetic nephropathy by inhibiting renal sodium glucose transporter 2 and activating the AMPK signaling pathway in db/db mice and high glucose-treated HK-2 cells. Biomed Pharmacother 2020; 131:110684. [PMID: 33152903 DOI: 10.1016/j.biopha.2020.110684] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 08/14/2020] [Accepted: 08/20/2020] [Indexed: 01/02/2023] Open
Abstract
Marein, an active component of the Coreopsis tinctoria Nutt. plant, is known to improve diabetic nephropathy (DN). However, its anti-diabetic functions in DN and potential mechanisms remain unclear. The aim of this study was to elucidate the effects and mechanisms of Marein in diabetic db/db mice with DN, and in high glucose-treated HK-2 cells. In vivo, treating diabetic db/db mice with Marein for 12 consecutive weeks restored diabetes-induced hyperglycemia and dyslipidemia, and ameliorated renal function deterioration, glomerulosclerosis, and renal ectopic lipid deposition. Marein exerted renoprotective effects by directly inhibiting renal tubule sodium glucose transporter 2 (SGLT2) expression, and then activating the AMP-activated protein kinase (AMPK)/acetyl CoA carboxylase (ACC)/peroxisome proliferator-activated receptor-γ coactivator 1α (PGC-1α) pathway in db/db mice. Meanwhile, Marein ameliorated fibrosis and inflammation by suppressing the pro-inflammatory factors interleukin-6 (IL-6) and monocyte chemotactic protein-1 (MCP-1), and expression of the extracellular matrix proteins, fibronectin (FN) and collagen 1 (COL1) in diabetic mice. In vitro, MDCK monolayer cells were established to explore the characteristics of Marein transmembrane transport. Marein was found to be absorbed across the membrane at a medium level that involved active transport and this was mediated by SGLTs. In HK-2 cells, Marein decreased uptake of the fluorescent glucose analog, 2-NBDG, by 22 % by inhibiting SGLT2 expression. In high glucose-treated HK-2 cells, Marein decreased SGLT2 expression and increased phosphorylated (p)-AMPK/p-ACC to improve high glucose-induced cellular dysfunction. Furthermore, Marein treatment decreased SGLT2 expression in SGLT2-overexpressing HK-2 cells. In addition, molecular docking and dynamics analysis revealed that SGLT2 was a direct target of Marein. Collectively, our results demonstrated that Marein ameliorates DN by inhibiting renal SGLT2 and activating p-AMPK, suggesting Marein can potentially prevent DN by suppressing renal SGLT2 expression directly.
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Sun H, Sun Z, Varghese Z, Guo Y, Moorhead JF, Unwin RJ, Ruan XZ. Nonesterified free fatty acids enhance the inflammatory response in renal tubules by inducing extracellular ATP release. Am J Physiol Renal Physiol 2020; 319:F292-F303. [PMID: 32686520 DOI: 10.1152/ajprenal.00098.2020] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
In proteinuric renal diseases, excessive plasma nonesterified free fatty acids bound to albumin can leak across damaged glomeruli to be reabsorbed by renal proximal tubular cells and cause inflammatory tubular cells damage by as yet unknown mechanisms. The present study was designed to investigate these mechanisms induced by palmitic acid (PA; one of the nonesterified free fatty acids) overload. Our results show that excess PA stimulates ATP release through the pannexin 1 channel in human renal tubule epithelial cells (HK-2), increasing extracellular ATP concentration approximately threefold compared with control. The ATP release is dependent on caspase-3/7 activation induced by mitochondrial reactive oxygen species. Furthermore, extracellular ATP aggravates PA-induced monocyte chemoattractant protein-1 secretion and monocyte infiltration of tubular cells, enlarging the inflammatory response in both macrophages and HK-2 cells via the purinergic P2X7 receptor-mammalian target of rapamycin-forkhead box O1-thioredoxin-interacting protein/NOD-like receptor protein 3 inflammasome pathway. Hence, PA increases mitochondrial reactive oxygen species-induced ATP release and inflammatory stress, which cause a "first hit," while ATP itself is a "second hit" in amplifying the renal tubular inflammatory response. Thus, inhibition of ATP release or the purinergic P2X7 receptor may be an approach to reduce renal inflammation and improve renal function.
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Affiliation(s)
- Hong Sun
- Department of Endocrinology and Metabolism, The First Affiliated Hospital of Soochow University, Suzhou, China.,Department of Endocrinology and Metabolism, Zhongda Hospital, Institute of Diabetes, Medical School, Southeast University, Nanjing, China
| | - Zilin Sun
- Department of Endocrinology and Metabolism, Zhongda Hospital, Institute of Diabetes, Medical School, Southeast University, Nanjing, China
| | - Zac Varghese
- John Moorhead Research Laboratory, Department of Renal Medicine, University College London Medical School, Royal Free Campus, London, United Kingdom
| | - Yinfeng Guo
- Department of Endocrinology and Metabolism, Zhongda Hospital, Institute of Diabetes, Medical School, Southeast University, Nanjing, China
| | - John F Moorhead
- John Moorhead Research Laboratory, Department of Renal Medicine, University College London Medical School, Royal Free Campus, London, United Kingdom
| | - Robert John Unwin
- John Moorhead Research Laboratory, Department of Renal Medicine, University College London Medical School, Royal Free Campus, London, United Kingdom.,Early Cardiovascular, Renal & Metabolism, AstraZeneca Biopharmaceutical's R&D, Cambridge, United Kingdom
| | - Xiong Z Ruan
- John Moorhead Research Laboratory, Department of Renal Medicine, University College London Medical School, Royal Free Campus, London, United Kingdom.,Centre for Lipid Research and Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), Institute for Viral Hepatitis, Department of Infectious Diseases, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, People's Republic of China
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13
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Composition and Antioxidant Activities of Volatile Organic Compounds in Radiation-Bred Coreopsis Cultivars. PLANTS 2020; 9:plants9060717. [PMID: 32512839 PMCID: PMC7356690 DOI: 10.3390/plants9060717] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Revised: 05/28/2020] [Accepted: 05/31/2020] [Indexed: 01/22/2023]
Abstract
Coreopsis is a flowering plant belonging to the Asteraceae family. It is an ornamental plant native to the Americas, Asia and Oceania and its flower is used as a raw material for tea and food manufacture in China. In this study, new cultivars of C. rosea (“golden ring”) were developed via radiation-induced mutation of the original cultivar, “pumpkin pie”. The chemical composition and antioxidant activities of flowers belonging to three different Coreopsis cultivars were evaluated: “golden ring”, “pumpkin pie” and “snow chrysanthemum” (coreopsis tea; C. tinctoria). The volatile compounds were characterized via gas chromatography-mass spectrometry (GC-MS) and 50–59 oils representing 95.3–96.8% of the total volatile compounds in these flower materials were identified. ”Golden ring” contained a high amount of fatty acids (38.13%), while “pumpkin pie” and “snow chrysanthemum” teas were rich in aliphatic amides (43.01%) and esters (67.22%), respectively. The antioxidant activities of the volatile oils of these cultivars were evaluated using 1,1-diphenyl-2-picrylhydraxyl (DPPH) and 2,2-azino-bis-3-ethylbenzothiazoline-6-sulfonic acid (ABTS) radical scavenging assays. The volatile extract of “golden ring” showed higher antioxidant activities compared with the extracts of the other cultivars. Therefore, “golden ring” can be used for further development as a raw material for tea manufacture or as a dietary supplement.
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14
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Li Y, Huang C, Fu W, Zhang H, Lao Y, Zhou H, Tan H, Xu H. Screening of the active fractions from the Coreopsis tinctoria Nutt. Flower on diabetic endothelial protection and determination of the underlying mechanism. JOURNAL OF ETHNOPHARMACOLOGY 2020; 253:112645. [PMID: 32045684 DOI: 10.1016/j.jep.2020.112645] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Revised: 01/06/2020] [Accepted: 02/01/2020] [Indexed: 06/10/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The Coreopsis tinctoria Nutt. flower (CTF) has been used traditionally in China for treating hypertension and diabetes as well as reducing body weight and blood fat. However, the vascular protection effect of the CTF has not been studied to date. AIM OF THE STUDY This study aimed to screen and identify bioactive fractions from the CTF with a diabetic endothelial protection effect and to clarify the underlying mechanism. MATERIALS AND METHODS The vascular protection effect of Fraction A was studied in high-fat diet and streptozocin-induced diabetic models. The endothelial protection effect of Fraction A-2 was further studied in an in vitro vascular endothelial dysfunction model induced by high glucose. In a high glucose-induced human umbilical vein endothelial cell (HUVEC) model, Fractions A-2-2 and A-2-3 were screened, and their detailed mechanisms of endothelial protection were studied. Liquid chromatography mass spectrometry (LC-MS) was used to identify the main components in Fractions A-2-2 and A-2-3. RESULTS Fraction A treatment significantly improved the endothelium-dependent vasodilation of the mesenteric artery induced by acetylcholine in diabetic rats. The maximum relaxation was 79.82 ± 2.45% in the control group, 64.36 ± 9.81% in the model group, and 91.87 ± 7.38% in the Fraction A treatment group (P < 0.01). Fraction A treatment also decreased rat tail pressure compared with the model group at the 12th week. The systolic blood pressure was 152.7 5 ± 16.99 mmHg in the control group, 188.50 ± 5.94 mmHg in the model group, and 172.60 ± 14.31 mmHg in the Fraction A treatment group (P < 0.05). The mean blood pressure was 128.50 ± 13.79 mmHg in the control group, 157.00 ± 6.06 mmHg in the model group, and 144.80 ± 11.97 mmHg in the Fraction A treatment group (P < 0.05). In an in vitro vascular endothelium-dependent vasodilation dysfunction model induced by high glucose, Fraction A-2 improved the vasodilation of the mesenteric artery. The maximum relaxation was 82.15 ± 16.24% in the control group, 73.29 ± 14.25% in the model group, and 79.62 ± 13.89% in the Fraction A-2 treatment group (P < 0.05). In a high glucose-induced HUVEC model, Fraction A-2-2 and Fraction A-2-3 upregulated the expression of IRS-1, Akt, and eNOS and increased the levels of p-IRS-1Ser307, p-Akt Ser473, and p-eNOSSer1177 and also decreased the expression of NOX4, TNF-α, IL-6, sVCAM, sICAM, and NF-κB (P < 0.01). With the intervention of AG490 and LY294002, the above effects of Fraction A-2-2 and Fraction A-2-3 were inhibited (P < 0.01). LC-MS data showed that in Fraction A-2-2 and Fraction A-2-3, there were 10 main components: flavanocorepsin; polyphenolic; flavanomarein; isochlorogenic acid A; dicaffeoylquinic acid; coreopsin; marein; coreopsin; luteolin-7-O-glucoside; and 3',5,5',7-tetrahydroxyflavanone-O-hexoside. CONCLUSION The protective effect of the CTF on diabetic endothelial dysfunction may be due to its effect on the JAK2/IRS-1/PI3K/Akt/eNOS pathway and the related oxidative stress and inflammation. The results strongly suggested that Fraction A-2-2 and Fraction A-2-3 were the active fractions from the CTF, and the CTF might be a potential option for the prevention of vascular complications in diabetes.
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Affiliation(s)
- Yajuan Li
- Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, PR China
| | - Chaoran Huang
- Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, PR China
| | - Wenwei Fu
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, PR China
| | - Hong Zhang
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, PR China
| | - Yuanzhi Lao
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, PR China
| | - Hua Zhou
- Institute of Cardiovascular Disease of Integrated Traditional Chinese and Western Medicine, Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, PR China
| | - Hongsheng Tan
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, PR China.
| | - Hongxi Xu
- Institute of Cardiovascular Disease of Integrated Traditional Chinese and Western Medicine, Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, PR China.
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15
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Zhang NN, Kang JS, Liu SS, Gu SM, Song ZP, Li FX, Wang LF, Yao L, Li T, Li LL, Wang Y, Li XJ, Mao XM. Flavanomarein inhibits high glucose-stimulated epithelial-mesenchymal transition in HK-2 cells via targeting spleen tyrosine kinase. Sci Rep 2020; 10:439. [PMID: 31949205 PMCID: PMC6965095 DOI: 10.1038/s41598-019-57360-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Accepted: 12/27/2019] [Indexed: 01/14/2023] Open
Abstract
Flavanomarein (FM) is a major natural compound of Coreopsis tinctoria Nutt with protective effects against diabetic nephropathy (DN). In this study, we investigated the effects of FM on epithelial-mesenchymal transition (EMT) in high glucose (HG)-stimulated human proximal tubular epithelial cells (HK-2) and the underlying mechanisms, including both direct targets and downstream signal-related proteins. The influence of FM on EMT marker proteins was evaluated via western blot. Potential target proteins of FM were searched using Discovery Studio 2017 R2. Gene Ontology (GO) analysis was conducted to enrich the proteins within the protein-protein interaction (PPI) network for biological processes. Specific binding of FM to target proteins was examined via molecular dynamics and surface plasmon resonance analyses (SPR). FM promoted the proliferation of HK-2 cells stimulated with HG and inhibited EMT through the Syk/TGF-β1/Smad signaling pathway. Spleen tyrosine kinase (Syk) was predicted to be the most likely directly interacting protein with FM. Combined therapy with a Syk inhibitor and FM presents significant potential as an effective novel therapeutic strategy for DN.
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Affiliation(s)
- Nan-Nan Zhang
- State Key Laboratory of Pathogenesis, Prevention, Treatment of Central Asian High Incidence Diseases, Xinjiang Medical University, Urumqi, Xinjiang, 830011, China.,Department of Pharmacology, Pharmacy College, Xinjiang Medical University, Urumqi, Xinjiang, 830011, China
| | - Jin-Sen Kang
- Department of Pharmacology, Pharmacy College, Xinjiang Medical University, Urumqi, Xinjiang, 830011, China
| | - Shuai-Shuai Liu
- Department of Pharmacology, School of Basic Medical Sciences, Peking University, Beijing, 100191, China
| | - Si-Meng Gu
- Department of Pharmacology, School of Basic Medical Sciences, Peking University, Beijing, 100191, China
| | - Zhi-Peng Song
- State Key Laboratory of Pathogenesis, Prevention, Treatment of Central Asian High Incidence Diseases, Xinjiang Medical University, Urumqi, Xinjiang, 830011, China.,Department of Pharmacology, Pharmacy College, Xinjiang Medical University, Urumqi, Xinjiang, 830011, China
| | - Feng-Xiang Li
- Department of Pharmacology, Pharmacy College, Xinjiang Medical University, Urumqi, Xinjiang, 830011, China
| | - Li-Feng Wang
- Department of Physiology, Preclinical School, Xinjiang Medical University, Urumqi, Xinjiang, 830011, China
| | - Lan Yao
- College of Traditional Chinese Medicine, Xinjiang Medical University, Urumqi, Xinjiang, 830011, China
| | - Tian Li
- Department of Histology and Embryology, Preclinical College, XinJiang Medical University, Urumqi, Xinjiang, 830011, China
| | - Lin-Lin Li
- Department of Pharmacology, Pharmacy College, Xinjiang Medical University, Urumqi, Xinjiang, 830011, China
| | - Ye Wang
- Department of Pharmacology, Pharmacy College, Xinjiang Medical University, Urumqi, Xinjiang, 830011, China
| | - Xue-Jun Li
- Department of Pharmacology, School of Basic Medical Sciences, Peking University, Beijing, 100191, China.
| | - Xin-Min Mao
- State Key Laboratory of Pathogenesis, Prevention, Treatment of Central Asian High Incidence Diseases, Xinjiang Medical University, Urumqi, Xinjiang, 830011, China. .,College of Traditional Chinese Medicine, Xinjiang Medical University, Urumqi, Xinjiang, 830011, China.
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16
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Inflammation and Oxidative Stress in Chronic Kidney Disease-Potential Therapeutic Role of Minerals, Vitamins and Plant-Derived Metabolites. Int J Mol Sci 2019; 21:ijms21010263. [PMID: 31906008 PMCID: PMC6981831 DOI: 10.3390/ijms21010263] [Citation(s) in RCA: 194] [Impact Index Per Article: 38.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Revised: 12/23/2019] [Accepted: 12/27/2019] [Indexed: 02/07/2023] Open
Abstract
Chronic kidney disease (CKD) is a debilitating pathology with various causal factors, culminating in end stage renal disease (ESRD) requiring dialysis or kidney transplantation. The progression of CKD is closely associated with systemic inflammation and oxidative stress, which are responsible for the manifestation of numerous complications such as malnutrition, atherosclerosis, coronary artery calcification, heart failure, anemia and mineral and bone disorders, as well as enhanced cardiovascular mortality. In addition to conventional therapy with anti-inflammatory and antioxidative agents, growing evidence has indicated that certain minerals, vitamins and plant-derived metabolites exhibit beneficial effects in these disturbances. In the current work, we review the anti-inflammatory and antioxidant properties of various agents which could be of potential benefit in CKD/ESRD. However, the related studies were limited due to small sample sizes and short-term follow-up in many trials. Therefore, studies of several anti-inflammatory and antioxidant agents with long-term follow-ups are necessary.
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17
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Bian Y, Li X, Li X, Ju J, Liang H, Hu X, Dong L, Wang N, Li J, Zhang Y, Yang B. Daming capsule, a hypolipidaemic drug, lowers blood lipids by activating the AMPK signalling pathway. Biomed Pharmacother 2019; 117:109176. [DOI: 10.1016/j.biopha.2019.109176] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2019] [Revised: 06/18/2019] [Accepted: 06/25/2019] [Indexed: 02/01/2023] Open
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18
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Francini F, Schinella GR, Ríos JL. Activation of AMPK by Medicinal Plants and Natural Products: Its Role in Type 2 Diabetes Mellitus. Mini Rev Med Chem 2019; 19:880-901. [PMID: 30484403 DOI: 10.2174/1389557519666181128120726] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Revised: 07/04/2018] [Accepted: 11/22/2018] [Indexed: 12/26/2022]
Abstract
Type-2 Diabetes (T2D) is a metabolic disease characterized by permanent hyperglycemia, whose development can be prevented or delayed by using therapeutic agents and implementing lifestyle changes. Some therapeutic alternatives include regulation of glycemia through modulation of different mediators and enzymes, such as AMP-activated protein kinase (AMPK), a highly relevant cellular energy sensor for metabolic homeostasis regulation, with particular relevance in the modulation of liver and muscle insulin sensitivity. This makes it a potential therapeutic target for antidiabetic drugs. In fact, some of them are standard drugs used for treatment of T2D, such as biguanides and thiazolidindiones. In this review, we compile the principal natural products that are activators of AMPK and their effect on glucose metabolism, which could make them candidates as future antidiabetic agents. Phenolics such as flavonoids and resveratrol, alkaloids such as berberine, and some saponins are potential natural activators of AMPK with a potential future as antidiabetic drugs.
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Affiliation(s)
- Flavio Francini
- Centro de Endocrinologia Experimental y Aplicada, (CONICET-CCT La Plata-UNLP FCM, CEAS CICPBA), Argentina
| | - Guillermo R Schinella
- Cátedra de Farmacología Básica, Facultad de Ciencias Médicas, Universidad Nacional de La Plata, Argentina.,Comisión de Investigaciones Científicas de la Provincia de Buenos Aires, La Plata, Argentina
| | - José-Luis Ríos
- Departament de Farmacologia, Facultat de Farmacia, Universitat de Valencia, Valencia, Spain
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19
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The Alcohol Extract of Coreopsis tinctoria Nutt Ameliorates Diabetes and Diabetic Nephropathy in db/db Mice through miR-192/miR-200b and PTEN/AKT and ZEB2/ECM Pathways. BIOMED RESEARCH INTERNATIONAL 2019; 2019:5280514. [PMID: 31032350 PMCID: PMC6458854 DOI: 10.1155/2019/5280514] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Accepted: 03/03/2019] [Indexed: 12/20/2022]
Abstract
The study aims to investigate the effects of the alcohol extract of Coreopsis tinctoria Nutt (AC) on diabetic nephropathy (DN) mice. A total of 30 db/db (DN) mice were divided into 3 groups, which were treated with AC (300 mg/kg/day), metformin (180 mg/kg/day), or saline by gavage for 10 weeks. Ten db/m mice treated with saline were used as normal control (NC group). Body weight (BW) and fasting blood glucose (FBG), HbA1c, 24 h urinary albumin excretion (UAE), and renal pathological fibrosis were analyzed. Expression of miR-192, miR-200b, and proteins in the PTEN/PI3K/AKT pathway was analyzed by qPCR or western blot. The DN mice had significantly higher BW, FBG, and 24 h UAE, as well as more severe pathological fibrosis when compared with NC. Treatment of AC could decrease BW, FBG, and 24 h UAE and alleviated kidney damage. Compared with the NC group, expressions of miR-192 and miR-200b were increased, whereas their target proteins (ZEB2 and PTEN) were reduced in the kidneys of DN mice, which further modulated the expression of their downstream proteins PI3K p85α, P-AKT, P-smad3, and COL4 α1; these proteins were increased in the kidneys of DN mice. In contrast, AC treatment reversed the expression changes of these proteins. These findings demonstrate that AC may protect the kidneys of DN mice by decreasing miR-192 and miR-200b, which could further regulate their target gene expression and modulate the activity of the PTEN/PI3K/AKT pathway to reduce the degree of renal fibrosis.
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20
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Chemical compositions of chrysanthemum teas and their anti-inflammatory and antioxidant properties. Food Chem 2019; 286:8-16. [PMID: 30827670 DOI: 10.1016/j.foodchem.2019.02.013] [Citation(s) in RCA: 72] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Revised: 12/06/2018] [Accepted: 02/04/2019] [Indexed: 11/23/2022]
Abstract
Seventeen commercial chrysanthemum teas (Chrysanthemum morifolium and Coreopsis tinctoria) were extracted with hot-H2O, and examined and compared to the 75% methanol extracts for their chemical compositions using UPLC/Q-TOF-MS analysis. For the first time, 6, 8-C,C-diglucosylapigenin and eriodicyol-7-O-glucoside were detected in the Snow chrysanthemum, and acetylmarein was detected in HangJu, GongJu and HuaiJu. The extracts were also examined for their radical scavenging and anti-inflammatory activities in vitro. The hot-H2O extract of Kunlunmiju 1 had the greatest total phenolic content, and relative DPPH and oxygen radical absorbance capacity values of 12.72 mg gallic acid equivalents/g, 105.48 and 1222.50 μmol Trolox equivalents/g, respectively. In addition, all the hot-H2O extracts suppressed the lipopolysaccharide-induced interleukin-6, IL-1β and cyclooxygenase-2 mRNA expressions, and H2O2-induced intracellular reactive oxygen species production in cultured cells. The results from this research may be used to promote the consumption of chrysanthemum as a functional tea.
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21
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Yao L, Li J, Li L, Li X, Zhang R, Zhang Y, Mao X. Coreopsis tinctoria Nutt ameliorates high glucose-induced renal fibrosis and inflammation via the TGF-β1/SMADS/AMPK/NF-κB pathways. BMC COMPLEMENTARY AND ALTERNATIVE MEDICINE 2019; 19:14. [PMID: 30630477 PMCID: PMC6327481 DOI: 10.1186/s12906-018-2410-7] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/21/2017] [Accepted: 12/14/2018] [Indexed: 12/15/2022]
Abstract
BACKGROUND Coreopsis tinctoria Nutt is an ethnomedicine widely used in Xinjiang, China. It is consumed as a herbal tea by local Uyghur people to treat high blood pressure and diarrhea. Our previous study confirmed that the ethyl acetate extract of Coreopsis tinctoria (AC) had a protective effect on diabetic nephropathy (DN) in an in vivo experiment. Here we aim to elucidate the protective mechanism of AC and marein, the main ingredient in Coreopsis tinctoria on renal fibrosis and inflammation in vitro under high glucose (HG) conditions. METHODS A HG-induced barrier dysfunction model in rat mesangial cells (HBZY-1) was established. The cells were exposed to AC and marein and/or HG for 24 h. Then, the renal protective effects of AC and marein via transforming growth factor-β1 (TGF-β1)/Smads, AMP-activated kinase protein (AMPK), and nuclear factor kappa beta (NF-κB) signaling were assessed. RESULTS Both AC and marein suppressed rat mesangial cell hyperplasia and significantly attenuated the expression of HG-disrupted fibrotic and inflammatory proteins in HBZY-1 cells. It was also confirmed that AC and marein remarkably attenuated HG-induced renal inflammation and fibrosis by regulating the AMPK, TGF-β1/Smads, and NF-κB signaling pathways. CONCLUSION These results indicated that AC and marein may delay the progression of DN, at least in part, by suppressing HG-induced renal inflammation and fibrosis. Marein may be one of the bioactive compounds in AC.
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Affiliation(s)
- Lan Yao
- College of Traditional Chinese Medicine, Xinjiang Medical University, No. 4 Liyushan Park, Urumuqi, 830011 China
| | - Jie Li
- College of Traditional Chinese Medicine, Xinjiang Medical University, No. 4 Liyushan Park, Urumuqi, 830011 China
- Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, No. 88 Yuquan Road, Nankai District, Tianjing, 300000 China
| | - Linlin Li
- College of Basic Medicine, Xinjiang Medical University, No. 393 Xinyi Street, Urumuqi, 830011 China
| | - Xinxia Li
- Center of Analysis and Test, Xinjiang Medical University, No. 393 Xinyi Street, Urumuqi, 830011 China
| | - Rui Zhang
- College of Basic Medicine, Xinjiang Medical University, No. 393 Xinyi Street, Urumuqi, 830011 China
| | - Yujie Zhang
- College of Traditional Chinese Medicine, Xinjiang Medical University, No. 4 Liyushan Park, Urumuqi, 830011 China
| | - Xinmin Mao
- College of Traditional Chinese Medicine, Xinjiang Medical University, No. 4 Liyushan Park, Urumuqi, 830011 China
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22
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Deng Y, Lam SC, Zhao J, Li SP. Quantitative analysis of flavonoids and phenolic acid in Coreopsis tinctoria Nutt. by capillary zone electrophoresis. Electrophoresis 2017; 38:2654-2661. [PMID: 28681383 DOI: 10.1002/elps.201700129] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2017] [Revised: 06/02/2017] [Accepted: 06/22/2017] [Indexed: 12/29/2022]
Abstract
Capillary zone electrophoresis was developed for the simultaneous determination of five flavonoids and one phenolic acid, including taxifolin-7-O-glucoside, flavanomarein, quercetagetin-7-O-glucoside, okanin 4'-O-glucoside, okanin, and chlorogenic acid, in different parts and origins of Coreopsis tinctoria and its related species. Effects of acidity, running-buffer concentration, and modifier concentration were investigated to determine the optimum conditions for analyte determination. Analysis was performed within 18 min by using 50 mM borax buffer containing 15% acetonitrile as a modifier (pH 9.0) at 25 kV and 25°C. Hyperoside was used as internal standard for quantification. The method was accurate, simple, and repeatable, and was successfully applied to the analysis in 13 samples with satisfactory assay results. Results showed that C. tinctoria obviously differed from the related flower tea materials, "Hangju" and "Gongju". The parts (flowers, buds, seeds, stems, and leaves) of C. tinctoria also varied among one another. This study can serve as a foundation for the quality control and pharmacological evaluation of different parts of C. tinctoria and its related species.
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Affiliation(s)
- Yong Deng
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, P. R. China
| | - Shing-Chung Lam
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, P. R. China
| | - Jing Zhao
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, P. R. China
| | - Shao-Ping Li
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, P. R. China
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23
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Liu C, Jiang D. High glucose-induced LIF suppresses osteoblast differentiation via regulating STAT3/SOCS3 signaling. Cytokine 2017; 91:132-139. [PMID: 28064096 DOI: 10.1016/j.cyto.2016.12.016] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2016] [Revised: 12/16/2016] [Accepted: 12/21/2016] [Indexed: 01/18/2023]
Abstract
High glucose (HG) is conceived to regulate bone metabolism in patients with diabetic mellitus (DM). In the present study, we examined the level of leukemia inhibitory factor (LIF), a pleiotropic cytokine in interleukin (IL)-6 family, in T2DM patients and investigated the regulation by HG on the induction of LIF/signal transducer and activator of transcription 3 (STAT3) signaling. Then we determined the regulation of HG and LIF on the osteoblast differentiation via measuring the ALP activity, matrix mineralization, and the expression of alkaline phosphatase (ALP), Runt-related transcription factor 2 (RUNX2), Osteocalcin (OCN) and osteopontin (OPN) in human osteoblast MG-63 cells. In addition, we evaluated the dependence of suppressor of cytokine signaling 3 (SOCS3)/STAT3 signaling in the progress. Results indicated significantly higher serum levels of high-sensitivity C-reactive protein (hsCRP), IL-1β, IL-6 and LIF in T2DM patients. HG induced markedly higher levels of these cytokines in vitro. Furthermore, either HG or LIF reduced the expression of ALP, OCN and RUNX2 in both mRNA and protein levels. In addition, LIF markedly promoted the expression of SOCS3, significantly upregulated the phosphorylation of STAT3 in MG-63 cells; and the downregulation of the four osteogenic differentiation-associated markers were restored by 50 or 100nM STAT3 inhibitor, JSI-124. In summary, this study has shown that LIF is implicated in the HG-mediated inhibition of osteoblast differentiation, via promoting STAT3/SOCS3 signaling. This study may provide insights into the signal pathway of HG-induced bone loss or delayed injured joint healing.
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Affiliation(s)
- Changlu Liu
- Department of Orthopaedics, The First Affiliated Hospital of Chongqing Medical University, 400016 Chongqing, China
| | - Dianming Jiang
- Department of Orthopaedics, The First Affiliated Hospital of Chongqing Medical University, 400016 Chongqing, China.
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Soliman AM, Mohamed AS, Marie MAS. Echinochrome pigment attenuates diabetic nephropathy in the models of type 1 and type 2 diabetes. DIABETES MELLITUS 2016. [DOI: 10.14341/dm8039] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Background. The main complication of diabetes mellitus is diabetic nephropathy in both types, which is a main reason for renal failure. Echinochrome substance present in sea urchin shells and spines and possesses high antioxidant activity.Aim. is to evaluate the ability of Ech to suppress the progression of diabetic complication in kidney.Materials and methods. Thirty-six male Wistar albino rats were divided into two main groups, type 1 diabetes mellitus and type 2 diabetes mellitus. Both groups divided into control, diabetic and echinochrome subgroups. Type 1 diabetes was induced by single dose of streptozotocin (60 mg/kg, i.p), while type 2 was induced by high fat diet for 4 weeks before the injection with streptozotocin (30 mg/kg, i.p). The treated groups were administrated by echinochrome (1mg/kg body weight in 10% DMSO) daily for 4 weeks.Results. Echinochrome groups showed reduction in the concentrations of glucose, malondialdehyde, urea, uric acid and creatinine. While it caused general increase in glutathione-S-transferase, superoxide dismutase, catalase, glutathione reduced, nitric oxide and creatinine clearance. The histopathological investigation showed clear improvement in the kidney architecture.Conclusion. Administration of echinochrome improves renal function and ameliorates renal histopathological changes possibly by improvement of glucose metabolism and inhibition of lipid peroxidation process.
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Han H, Ma Z, Wang W, Xu M, Zhou S, Li L, Jiang H. Deglycosylation and absorption of marein, flavanomarein and taxifolin-7-O-β-D-glucopyranoside from capitula of Coreopsis tinctoria in rats and humans. J Funct Foods 2016. [DOI: 10.1016/j.jff.2016.09.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
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Yang Y, Sun X, Liu J, Kang L, Chen S, Ma B, Guo B. Quantitative and Qualitative Analysis of Flavonoids and Phenolic Acids in Snow Chrysanthemum (Coreopsis tinctoria Nutt.) by HPLC-DAD and UPLC-ESI-QTOF-MS. Molecules 2016; 21:molecules21101307. [PMID: 27706037 PMCID: PMC6272912 DOI: 10.3390/molecules21101307] [Citation(s) in RCA: 59] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2016] [Revised: 09/22/2016] [Accepted: 09/25/2016] [Indexed: 11/16/2022] Open
Abstract
A simple, accurate and reliable high performance liquid chromatography coupled with photodiode array detection (HPLC-DAD) method was developed and then successfully applied for simultaneous quantitative analysis of eight compounds, including chlorogenic acid (1), (R/S)-flavanomarein (2), butin-7-O-β-d-glucopyranoside (3), isookanin (4), taxifolin (5), 5,7,3′,5′-tetrahydroxyflavanone-7-O-β-d-glucopyranoside (6), marein (7) and okanin (8), in 23 batches of snow chrysanthemum of different seed provenance and from various habitats. The results showed total contents of the eight compounds in the samples with seed provenance from Keliyang (Xinjiang, China), are higher than in samples from the other five provenances by 52.47%, 15.53%, 19.78%, 21.17% and 5.06%, respectively, which demonstrated that provenance has a great influence on the constituents in snow chrysanthemum. Meanwhile, an ultra performance liquid chromatography coupled with electrospray ionization and quadrupole time-of-flight-mass spectrometry (UPLC-ESI-QTOF-MS) was also employed to rapidly separate and identify flavonoids and phenolic acids in snow chrysanthemum from Keliyang. As a result, a total of 30 constituents, including 26 flavonoids and four phenolic acids, were identified or tentatively identified based on the exact mass information, the fragmentation characteristics, and retention times of eight reference standards. This work may provide an efficient approach to comprehensively evaluate the quality of snow chrysanthemum.
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Affiliation(s)
- Yinjun Yang
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, China.
- Department of Biology, Beijing Institute of Radiation Medicine, Beijing 100850, China.
| | - Xinguang Sun
- Department of Biology, Beijing Institute of Radiation Medicine, Beijing 100850, China.
| | - Jinjun Liu
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, China.
| | - Liping Kang
- Department of Biology, Beijing Institute of Radiation Medicine, Beijing 100850, China.
| | - Sibao Chen
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, China.
| | - Baiping Ma
- Department of Biology, Beijing Institute of Radiation Medicine, Beijing 100850, China.
| | - Baolin Guo
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, China.
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Zhang Y, Yuan C, Fang H, Li J, Su S, Chen W. Total flavonoid extract from Coreopsis tinctoria Nutt. protects rats against myocardial ischemia/reperfusion injury. IRANIAN JOURNAL OF BASIC MEDICAL SCIENCES 2016; 19:1016-1023. [PMID: 27803790 PMCID: PMC5080418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
OBJECTIVES This study aimed to evaluate the protective effects of total flavonoid extract from Coreopsis tinctoria Nutt. (CTF) against myocardial ischemia/reperfusion injury (MIRI) using an isolated Langendorff rat heart model. MATERIALS AND METHODS Left ventricular developed pressure (LVDP) and the maximum rate of rise and fall of LV pressure (±dp/dtmax) were recorded. Cardiac injury was assessed by analyzing lactate dehydrogenase (LDH) and creatine kinase (CK) released in the coronary effluent. Superoxide dismutase (SOD), glutathione peroxidase (GSH-Px), and malondialdehyde (MDA) levels were determined. Myocardial inflammation was assessed by monitoring tumor necrosis factor-alpha (TNF-α), C-reactive protein (CRP), interleukin-8 (IL-8), and interleukin-6 (IL-6) levels. Myocardial infarct size was estimated. Cell morphology was assessed by 2,3,5-triphenyltetrazolium chloride and hematoxylin and eosin (HE) staining. Cardiomyocyte apoptosis was determined by terminal deoxynucleotidyl transferase dUTP nick-end labeling (TUNEL) staining. RESULTS Pretreatment with CTF significantly increased the heart rate and increased LVDP, as well as SOD and GSH-Px levels. In addition, CTF pretreatment decreased the TUNEL-positive cell ratio, infarct size, and levels of CK, LDH, MDA, TNF-α, CRP, IL-6, and IL-8. CONCLUSION These results suggest that CTF exerts cardio-protective effects against MIRI via anti-oxidant, anti-inflammatory, and anti-apoptotic activities.
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Affiliation(s)
- Ya Zhang
- Ministry of Education, Pharmacy Shihezi University Xinjiang China
| | - Changsheng Yuan
- Ministry of Education, Pharmacy Shihezi University Xinjiang China
| | - He Fang
- Ministry of Education, Pharmacy Shihezi University Xinjiang China
| | - Jia Li
- Ministry of Education, Pharmacy Shihezi University Xinjiang China
| | - Shanshan Su
- Ministry of Education, Pharmacy Shihezi University Xinjiang China
| | - Wen Chen
- Pharmacy Shihezi University Xinjiang China,Corresponding author: Wen Chen. Pharmacy Shihezi University Xinjiang China; Tel: +8609932055002; Fax: +8609932055002;
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Wang J, Aierken G, Li X, Li L, Mao X. Testing the absorption of the extracts of Coreopsis tinctoria Nutt. in the intestinal canal in rats using an Ussing chamber. JOURNAL OF ETHNOPHARMACOLOGY 2016; 186:73-83. [PMID: 27045866 DOI: 10.1016/j.jep.2016.03.061] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2016] [Revised: 03/25/2016] [Accepted: 03/30/2016] [Indexed: 06/05/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Coreopsis tinctoria Nutt mainly distributed in Hetian region of Xinjiang at an altitude of 3000m, which is used as Uyghur traditional medicine because of its clearing heat, promoting circulation and removing toxicity and antihypertension, ect. effect. AIM OF THE STUDY This research was to study the four ingredients in the extracts of Coreopsis tinctoria Nutt. that are absorbed in different intestinal segments in rats to lay the foundation for further study on the effective constituents, tissue distribution, metabolism, and spectrum-effect relationships of these extracts. MATERIALS AND METHODS High, medium, and low concentrations were prepared according to their pharmacological effects. Quantitative analysis multi-components by single marker was used to test the cumulative absorption volume Q, absorption rate constant Ka, and apparent permeability coefficient Papp of the four main ingredients in C. tinctoria Nutt. extract in different intestinal segments in rats using a Ussing chamber model and high-performance liquid chromatography. RESULTS The Papp of chlorogenic acid and flavanomarein in the duodenum, jejunum, ileum, and colon were 1.0×10(-6) to 10×10(-6)cms(-1). Papp of marein in the duodenum and jejunum was <1.0×10(-6), and was 1.0×10(-6) to 10×10(-6)cms(-1) in the ileum and colon. Papp of 3,5-O-dicaffeoylquinic acid in the duodenum was <1.0×10(-6)cms(-1), while it was 1.0×(1)0(-6) to 10×10(-6)cms(-1) in the jejunum, ileum, and colon. CONCLUSIONS All four chemical components of the plant extract can be absorbed by the intestinal canal of rats, which conforms to zero-order absorption; the ileum presented the best absorption.
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Affiliation(s)
- Jian Wang
- Department of Pharmacology, Basic Medicine College, Xinjiang Medical University, Urumqi 830054, Xinjiang, China
| | - Guzhalinuer Aierken
- Analytical & Testing Center, Xinjiang Medical University, Urumqi 830054, Xinjiang, China
| | - Xinxia Li
- Analytical & Testing Center, Xinjiang Medical University, Urumqi 830054, Xinjiang, China
| | - Linlin Li
- Department of Pharmacology, Basic Medicine College, Xinjiang Medical University, Urumqi 830054, Xinjiang, China
| | - Xinmin Mao
- Department of Pharmacology, Basic Medicine College, Xinjiang Medical University, Urumqi 830054, Xinjiang, China; Affiliated Traditional Chinese Medicine College, Xinjiang Medical University, Urumqi 830054, Xinjiang, China.
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Autologous fat tissue injection improve the quality of skin grafts: A Novel Therapeutic measurement for wound lesion. ACTA ACUST UNITED AC 2016. [DOI: 10.1016/j.wndm.2016.05.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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