1
|
Song Y, Fu Z, Zhu X, Zhang J, Bai W, Song B. The flower of Abelmoschus manihot (L.) medik exerts antioxidant effects by regulating the Nrf2 signalling pathway in scald injury. Wound Repair Regen 2024; 32:123-134. [PMID: 38151814 DOI: 10.1111/wrr.13146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Revised: 10/25/2023] [Accepted: 12/12/2023] [Indexed: 12/29/2023]
Abstract
Scald is a common skin injury in daily life. It is well known that skin burns are associated with inflammation and oxidative stress. In our previous study, we found that Abelmoschus manihot (L.) medik had excellent therapeutic effects on scald-induced inflammation, but its effect on scald-induced oxidative stress was not reported. In this study, a deep second-degree scald model in mice was established, and the wound healing rate, healing time, malondialdehyde (MDA) and total superoxide dismutase (T-SOD) levels, and nuclear factor erythroid 2-related Factor 2 (Nrf2) expression in wound tissue were measured to evaluate the scald wound healing performance of extraction from A. manihot (L.) medik (EAM). Scalding activity in mice was examined in vivo by hot water-induced finger swelling. The treatment scald activities were also examined in vivo by subjecting mice to thermal water-induced digit swelling. Additionally, the antioxidant effect of EAM on fibroblasts was also used to determine the mechanism in vitro. The results showed that EAM not only decreased the wound healing time but also effectively regulated the levels of oxidising, MDA and T-SOD in wound tissue. Concurrently, EAM suppressed digit swelling and hyperalgesia. Furthermore, EAM had a significant protective effect on NIH-3T3 cells after H2 O2 injury by regulating the Nrf2 signalling pathway against oxidative injury. Therefore, EAM is a promising drug for the treatment of scald-induced inflammation.
Collapse
Affiliation(s)
- Ying Song
- Department of Pharmacology, Zhejiang University of Technology, Hangzhou, Zhejiang, China
- Hangzhou King's Healthcare Pharmaceutical Technology Co., Ltd., Hangzhou, Zhejiang, China
| | - Zailin Fu
- Linping Campus, the Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Xinyi Zhu
- Department of Pharmacology, Zhejiang University of Technology, Hangzhou, Zhejiang, China
| | - Jun Zhang
- Department of Pharmacology, Zhejiang University of Technology, Hangzhou, Zhejiang, China
| | - Wenwen Bai
- Department of Pharmacology, Zhejiang University of Technology, Hangzhou, Zhejiang, China
| | - Biwei Song
- Department of Pharmacology, Zhejiang University of Technology, Hangzhou, Zhejiang, China
| |
Collapse
|
2
|
Li J, Yao H, Zhao F, An J, Wang Q, Mu J, Liu Z, Zou MH, Xie Z. Pycard deficiency inhibits microRNA maturation and prevents neointima formation by promoting chaperone-mediated autophagic degradation of AGO2/argonaute 2 in adipose tissue. Autophagy 2024; 20:629-644. [PMID: 37963060 PMCID: PMC10936599 DOI: 10.1080/15548627.2023.2277610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Accepted: 10/26/2023] [Indexed: 11/16/2023] Open
Abstract
PYCARD (PYD and CARD domain containing), a pivotal adaptor protein in inflammasome assembly and activation, contributes to innate immunity, and plays an essential role in the pathogenesis of atherosclerosis and restenosis. However, its roles in microRNA biogenesis remain unknown. Therefore, this study aimed to investigate the roles of PYCARD in miRNA biogenesis and neointima formation using pycard knockout (pycard-/-) mice. Deficiency of Pycard reduced circulating miRNA profile and inhibited Mir17 seed family maturation. The systemic pycard knockout also selectively reduced the expression of AGO2 (argonaute RISC catalytic subunit 2), an important enzyme in regulating miRNA biogenesis, by promoting chaperone-mediated autophagy (CMA)-mediated degradation of AGO2, specifically in adipose tissue. Mechanistically, pycard knockout increased PRMT8 (protein arginine N-methyltransferase 8) expression in adipose tissue, which enhanced AGO2 methylation, and subsequently promoted its binding to HSPA8 (heat shock protein family A (Hsp70) member 8) that targeted AGO2 for lysosome degradation through chaperone-mediated autophagy. Finally, the reduction of AGO2 and Mir17 family expression prevented vascular injury-induced neointima formation in Pycard-deficient conditions. Overexpression of AGO2 or administration of mimic of Mir106b (a major member of the Mir17 family) prevented Pycard deficiency-mediated inhibition of neointima formation in response to vascular injury. These data demonstrate that PYCARD inhibits CMA-mediated degradation of AGO2, which promotes microRNA maturation, thereby playing a critical role in regulating neointima formation in response to vascular injury independently of inflammasome activity and suggest that modulating PYCARD expression and function may represent a powerful therapeutic strategy for neointima formation.Abbreviations: 6-AN: 6-aminonicotinamide; ACTB: actin, beta; aDMA: asymmetric dimethylarginine; AGO2: argonaute RISC catalytic subunit 2; CAL: carotid artery ligation; CALCOCO2: calcium binding and coiled-coil domain 2; CMA: chaperone-mediated autophagy; CTSB: cathepsin B; CTSD: cathepsin D; DGCR8: DGCR8 microprocessor complex subunit; DOCK2: dedicator of cyto-kinesis 2; EpiAdi: epididymal adipose tissue; HSPA8: heat shock protein family A (Hsp70) member 8; IHC: immunohistochemical; ISR: in-stent restenosis; KO: knockout; LAMP2: lysosomal-associated membrane protein 2; MAP1LC3/LC3: microtubule associated protein 1 light chain 3; miRNA: microRNA; NLRP3: NLR family pyrin domain containing 3; N/L: ammonium chloride combined with leupeptin; PRMT: protein arginine methyltransferase; PVAT: peri-vascular adipose tissues; PYCARD: PYD and CARD domain containing; sDMA: symmetric dimethylarginine; ULK1: unc-51 like kinase 1; VSMCs: vascular smooth muscle cells; WT: wild-type.
Collapse
Affiliation(s)
- Jian Li
- Center of Molecular and Translational Medicine, Georgia State University, Atlanta, Georgia
| | - Hongmin Yao
- Center of Molecular and Translational Medicine, Georgia State University, Atlanta, Georgia
| | - Fujie Zhao
- Center of Molecular and Translational Medicine, Georgia State University, Atlanta, Georgia
| | - Junqing An
- Center of Molecular and Translational Medicine, Georgia State University, Atlanta, Georgia
| | - Qilong Wang
- Center of Molecular and Translational Medicine, Georgia State University, Atlanta, Georgia
| | - Jing Mu
- Center of Molecular and Translational Medicine, Georgia State University, Atlanta, Georgia
| | - Zhixue Liu
- Center of Molecular and Translational Medicine, Georgia State University, Atlanta, Georgia
| | - Ming-Hui Zou
- Center of Molecular and Translational Medicine, Georgia State University, Atlanta, Georgia
| | - Zhonglin Xie
- Center of Molecular and Translational Medicine, Georgia State University, Atlanta, Georgia
| |
Collapse
|
3
|
Jung YW, Lee JA, Lee JE, Cha H, Choi YH, Jeong W, Choi CW, Oh JS, Ahn EK, Hong SS. Anti-Adipogenic Activity of Secondary Metabolites Isolated from Smilax sieboldii Miq. on 3T3-L1 Adipocytes. Int J Mol Sci 2023; 24:ijms24108866. [PMID: 37240212 DOI: 10.3390/ijms24108866] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 05/11/2023] [Accepted: 05/15/2023] [Indexed: 05/28/2023] Open
Abstract
Smilax sieboldii, a climbing tree belonging to Smilacaceae, has been used in traditional oriental medicine for treating arthritis, tumors, leprosy, psoriasis, and lumbago. To evaluate the anti-obesity effects of S. sieboldii (Smilacaceae), we screened methylene chloride (CH2Cl2), ethyl acetate (EtOAc), aqueous-saturated n-butanol, and ethanol (EtOH) extracts of the whole plant at various concentrations to inhibit adipogenesis in adipocytes. The 3T3-L1 cell line with Oil red O staining with the help of fluorometry was used as an indicator of anti-obesity activity. Bioactivity-guided fractionation of the EtOH extract and subsequent phytochemical investigation of the active CH2Cl2- and EtOAc-soluble fractions resulted in the isolation of 19 secondary metabolites (1-19), including a new α-hydroxy acid derivative (16) and two new lanostane-type triterpenoids (17 and 18). The structures of these compounds were characterized using various spectroscopic methods. All the isolated compounds were screened for adipogenesis inhibition at a concentration of 100 μM. Of these, compounds 1, 2, 4-9, 15, and 19 significantly reduced fat accumulation in 3T3-L1 adipocytes, especially compounds 4, 7, 9, and 19, showing 37.05 ± 0.95, 8.60 ± 0.41 15.82 ± 1.23, and 17.73 ± 1.28% lipid content, respectively, at a concentration of 100 μM. These findings provide experimental evidence that isolates from S. sieboldii extracts exert beneficial effects regarding the regulation of adipocyte differentiation.
Collapse
Affiliation(s)
- Yeon Woo Jung
- Bio-Center, Gyeonggido Business & Science Accelerator, Suwon 16229, Republic of Korea
| | - Jung A Lee
- Bio-Center, Gyeonggido Business & Science Accelerator, Suwon 16229, Republic of Korea
| | - Ji Eun Lee
- Bio-Center, Gyeonggido Business & Science Accelerator, Suwon 16229, Republic of Korea
| | - Hanna Cha
- Bio-Center, Gyeonggido Business & Science Accelerator, Suwon 16229, Republic of Korea
| | - Yun-Hyeok Choi
- Bio-Center, Gyeonggido Business & Science Accelerator, Suwon 16229, Republic of Korea
| | - Wonsik Jeong
- Bio-Center, Gyeonggido Business & Science Accelerator, Suwon 16229, Republic of Korea
| | - Chun Whan Choi
- Bio-Center, Gyeonggido Business & Science Accelerator, Suwon 16229, Republic of Korea
| | - Joa Sub Oh
- College of Pharmacy, Dankook University, Cheonan 31116, Republic of Korea
| | - Eun-Kyung Ahn
- Bio-Center, Gyeonggido Business & Science Accelerator, Suwon 16229, Republic of Korea
| | - Seong Su Hong
- Bio-Center, Gyeonggido Business & Science Accelerator, Suwon 16229, Republic of Korea
| |
Collapse
|
4
|
Men X, Han X, Lee SJ, Park KT, Han JK, Choi SI, Lee OH. Anti-adipogenic Effects of Sulforaphane-rich Ingredient with Broccoli Sprout and Mustard Seed in 3T3-L1 Preadipocytes. PLANTA MEDICA 2023; 89:526-538. [PMID: 35577064 DOI: 10.1055/a-1853-7101] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Glucoraphanin (GRA) is a precursor of sulforaphane (SFN), which can be synthesized by the enzyme myrosinase. In this study, we developed and validated HPLC analytical methods for the determination of GRA and SFN in mustard seed powder (MSP), broccoli sprout powder (BSP), and the MSP-BSP mixture powder (MBP), and evaluated their anti-adipogenic effects in 3T3-L1 adipocytes. We found that the analysis methods were suitable for the determination of GRA and SFN in MSP, BSP, and MBP. The content of GRA in BSP was 131.11 ± 1.84 µmol/g, and the content of SFN in MBP was 162.29 ± 1.24 µmol/g. In addition, BSP and MBP effectively decreased lipid accumulation content without any cytotoxicity. Both BSP and MBP significantly inhibited the expression of adipogenic proteins and increased the expression of proteins related to lipolysis and lipid metabolism. BSP and MBP inhibited the expression of adipocyte protein 2 (aP2), CCAAT/enhancer-binding protein-α (C/EBP-α), and peroxisome proliferator-activated receptor-γ (PPAR-γ) in 3T3-L1 adipocytes, and inhibited the expression of fatty acid synthase (FAS) through AMP-activated protein kinase (AMPK). Meanwhile, BSP and MBP also increased the expression of the lipolysis-related proteins, uncoupling protein-1 (UCP-1) and carnitine palmitoyltransferase-1 (CPT-1). Moreover, MBP exerted anti-adipogenic to a greater extent than BSP in 3T3-L1 preadipocytes.
Collapse
Affiliation(s)
- Xiao Men
- Department of Food Biotechnology and Environmental Science, Kangwon National University, Chuncheon, Korea
| | - Xionggao Han
- Department of Food Biotechnology and Environmental Science, Kangwon National University, Chuncheon, Korea
| | - Se-Jeong Lee
- Department of Food Biotechnology and Environmental Science, Kangwon National University, Chuncheon, Korea
| | - Keun-Tae Park
- Research and Development Center, Milae Bioresourece Co. Ltd., Seoul, Korea
| | - Jong-Kwon Han
- Research and Development Center, Milae Bioresourece Co. Ltd., Seoul, Korea
| | - Sun-Il Choi
- Department of Food Biotechnology and Environmental Science, Kangwon National University, Chuncheon, Korea
| | - Ok-Hwan Lee
- Department of Food Biotechnology and Environmental Science, Kangwon National University, Chuncheon, Korea
| |
Collapse
|
5
|
Choudhary R, Singh A, Upadhyay A, Singh R, Thangalakshmi S, Dar AH, Bajpai VK, Shukla S. Exotic god fruit, persimmon (
Diospyros kaki
): Pharmacological importance and human health aspects. EFOOD 2023. [DOI: 10.1002/efd2.52] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Affiliation(s)
- Rita Choudhary
- TERI‐Deakin Nanobiotechnology Centre, Division of Sustainable Agriculture The Energy and Resources Institute, Gwal Pahari Haryana Gurugram India
| | - Anurag Singh
- Department of Food Science and Technology National Institute of Food Technology Entrepreneurship and Management, Kundli Sonipat Haryana India
| | - Ashutosh Upadhyay
- Department of Food Science and Technology National Institute of Food Technology Entrepreneurship and Management, Kundli Sonipat Haryana India
| | - Rakhi Singh
- Department of Food Science and Technology National Institute of Food Technology Entrepreneurship and Management, Kundli Sonipat Haryana India
| | - S. Thangalakshmi
- Department of Food Engineering National Institute of Food Technology Entrepreneurship and Management, Kundli Sonipat Haryana India
| | - Aamir H. Dar
- Department of Food Technology Islamic University of Sciences and Technology Awantipora Kashmir India
| | - Vivek K. Bajpai
- Department of Energy and Materials Engineering Dongguk University Seoul Republic of Korea
| | - Shruti Shukla
- TERI‐Deakin Nanobiotechnology Centre, Division of Sustainable Agriculture The Energy and Resources Institute, Gwal Pahari Haryana Gurugram India
| |
Collapse
|
6
|
Sun X, Li P, Lin H, Ni Z, Zhan Y, Cai G, Liu C, Chen Q, Wang W, Wang X, Zhang P, Li P, Liang M, Zheng H, Wang N, Miao L, Jin R, Guo Z, Wang Y, Chen X. Efficacy and safety of Abelmoschus manihot in treating chronic kidney diseases: A multicentre, open-label and single-arm clinical trial. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2022; 99:154011. [PMID: 35278897 DOI: 10.1016/j.phymed.2022.154011] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 02/12/2022] [Accepted: 02/25/2022] [Indexed: 06/14/2023]
Abstract
RATIONALE AND OBJECTIVE The efficacy of Abelmoschus manihot (AM) in treating of chronic kidney disease (CKD) has been confirmed by prior trials. AM is also commonly combined to other medicines among CKD patients in clinic. This trial aimed at evaluating the safety of AM combination application, and further verifying the efficacy of AM in treating various types of CKD. STUDY DESIGN A multicentre, prospective, open-label, single-arm trial SETTING AND PARTICIPANTS: Approximately 2000 CKD patients with proteinuria (≥ 150 mg/d), from 105 centres across China INTERVENTIONS: AM was administered to patients three times per day for 24 weeks: the daily dose was based on age (> 12 years old: 2.5 g tid; 6∼12 years old: 1.5 g tid; 2∼6 years old: 1 g tid) OUTCOMES: The efficacy outcomes were the change in 24-hour proteinuria and estimated glomerular filtration rate (eGFR) from baseline to week 24. Safety outcomes included adverse events and laboratory tests. RESULTS 2054 CKD patients from 105 centres were enrolled in this trial, with 1843 (89.7%) completing the 24-week follow-up. The participants' median age was 44 years old and 44.6% were female. Compared to baseline, 24-hour proteinuria decreased 471 mg (95% confident interval, 367 to 575, p < 0.001) at week 24. eGFR did not change significantly relative to baseline with the mean increase as 1.7 ml/min/1.73 m2 (95% confident interval, -0.3 to 3.7, p = 0.09). 902 (43.9%) participants combined medication to AM during follow-up. The total incidence of adverse events was 12.9%; and the most common adverse events were hyperlipidaemia (4.1%), abnormal liver function (2.3%), upper respiratory infection (1.8%), and hyperglycaemia (1.1%). Combined medications did not change the risk for hyperlipidaemia and upper respiratory infection. The combination application with antiplatelet reagents increased the risk of abnormal liver function, and with calcium channel blockers increased the risk of hyperglycaemia. LIMITATIONS Single-arm clinical trial and short observation time CONCLUSION: We have provided safety information of AM on various types of CKD in a large trial, especially when combination to medications most commonly prescribed to CKD patients. AM also showed to decrease proteinuria with stable kidney function during follow up. AM is a promising treatment for CKD patients.
Collapse
Affiliation(s)
- Xuefeng Sun
- Department of Nephrology, Chinese PLA Institute of Nephrology, State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Chinese PLA General Hospital, Chinese PLA Medical School, Beijing 100853, China.
| | - Ping Li
- Department of Nephrology, Chinese PLA Institute of Nephrology, State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Chinese PLA General Hospital, Chinese PLA Medical School, Beijing 100853, China
| | - Hongli Lin
- Department of Nephrology, The First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116011, China
| | - Zhaohui Ni
- Department of Nephrology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China
| | - Yongli Zhan
- Department of Nephrology, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing 100053, China
| | - Guangyan Cai
- Department of Nephrology, Chinese PLA Institute of Nephrology, State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Chinese PLA General Hospital, Chinese PLA Medical School, Beijing 100853, China
| | - Chao Liu
- Department of Nephrology, Chinese PLA Institute of Nephrology, State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Chinese PLA General Hospital, Chinese PLA Medical School, Beijing 100853, China
| | - Qinkai Chen
- Department of Nephrology, The First Affiliated Hospital of Nanchang University, Nanchang, 330006, China
| | - Wenge Wang
- Department of Nephrology, The Second Hospital of Lanzhou University, Lanzhou, 730030, China
| | - Xiaoqin Wang
- Department of Nephrology, Hubei Provincial Hospital of TCM, Wuhan, 430060, China
| | - Peiqing Zhang
- Department of Nephrology, Heilongjiang Provincial Academy of Traditional Chinese Medicine, Ha'erbin, 150036, China
| | - Peng Li
- Department of Nephrology, Yantai Yu Huang Ding Hospital, Qingdao University, Yantai, 264000, China
| | - Meng Liang
- Department of Nephrology, Chinese People's Liberation Army No.174 Hospital, Xiamen, 361003, China
| | - Hongguang Zheng
- Department of Nephrology, The Chinese people's liberation army general hospital in northern war zone, Shenyang, 110016, China
| | - Niansong Wang
- Department of Nephrology, The Six Affiliated Hospital of Shanghai Jiao Tong University School of Medicine, Shanghai 200233, China
| | - Lining Miao
- Department of Nephrology, The Second Hospital of Jilin University, Changchun, 130041, China
| | - Ruixia Jin
- Department of Nephrology, First Affiliated Hospital of Jinzhou Medical University, Jinzhou, 121001, China
| | - Zhiyong Guo
- Department of Nephrology, Chang Hai Hospital, Second Military Medical University, Shanghai, 200433, China
| | - Yong Wang
- Department of Nephrology, Chinese PLA Institute of Nephrology, State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Chinese PLA General Hospital, Chinese PLA Medical School, Beijing 100853, China
| | - Xiangmei Chen
- Department of Nephrology, Chinese PLA Institute of Nephrology, State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Chinese PLA General Hospital, Chinese PLA Medical School, Beijing 100853, China.
| |
Collapse
|
7
|
Chang CC, Houng JY, Peng WH, Yeh TW, Wang YY, Chen YL, Chang TH, Hung WC, Yu TH. Effects of Abelmoschus manihot Flower Extract on Enhancing Sexual Arousal and Reproductive Performance in Zebrafish. Molecules 2022; 27:molecules27072218. [PMID: 35408615 PMCID: PMC9000255 DOI: 10.3390/molecules27072218] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Revised: 03/28/2022] [Accepted: 03/28/2022] [Indexed: 01/07/2023] Open
Abstract
The flower of Abelmoschus manihot L. is mainly used for the treatment of chronic kidney diseases, and has been reported to have bioactivities such as antioxidant, anti-inflammatory, antiviral, and antidepressant activities. This study used wild-type adult zebrafish as an animal model to elucidate the potential bioactivity of A. manihot flower ethanol extract (AME) in enhancing their sexual and reproductive functions. Zebrafish were fed AME twice a day at doses of 0.2%, 1%, and 10% for 28 days, and were then given the normal feed for an additional 14 days. The hormone 17-β estradiol was used as the positive control. Sexual behavioral parameters such as the number of times males chased female fish, the production of fertilized eggs, and the hatching rate of the fertilized eggs were recorded at days 0.33, 7, 14, 21, 28, and 42. The expression levels of sex-related genes—including lhcgr, ar, cyp19a1a, and cyp19a1b—were also examined. The results showed that the chasing number, fertilized egg production, and hatching rate were all increased with the increase in the AME treatment dose and treatment time. After feeding with 1% and 10% AME for 28 days, the chasing number in the treated group as compared to the control group increased by 1.52 times and 1.64 times, respectively; the yield of fertilized eggs increased by 1.59 times and 2.31 times, respectively; and the hatching rate increased by 1.26 times and 1.69 times, respectively. All three parameters exhibited strong linear correlations with one another (p < 0.001). The expression of all four genes was also upregulated with increasing AME dose and treatment duration. When feeding with 0.2%, 1%, and 10% AME for 28 days, the four sex-related genes were upregulated at ranges of 1.79−2.08-fold, 2.74−3.73-fold, and 3.30−4.66-fold, respectively. Furthermore, the effect of AME was persistent, as the promotion effect continued after the treatment was stopped for at least two weeks. The present findings suggest that AME can enhance the endocrine system and may improve libido and reproductive performance in zebrafish.
Collapse
Affiliation(s)
- Chi-Chang Chang
- School of Medicine for International Students, College of Medicine, I-Shou University, Kaohsiung 82445, Taiwan;
- Department of Obstetrics & Gynecology, E-Da Hospital/E-Da Dachang Hospital, Kaohsiung 82445, Taiwan; (Y.-L.C.); (T.-H.C.)
- Correspondence: ; Tel.: +886-7-5599123 (ext. 1014)
| | - Jer-Yiing Houng
- Department of Nutrition, I-Shou University, Kaohsiung 82445, Taiwan;
- Department of Chemical Engineering, I-Shou University, Kaohsiung 82445, Taiwan
| | - Wei-Hao Peng
- School of Medicine for International Students, College of Medicine, I-Shou University, Kaohsiung 82445, Taiwan;
| | - Tien-Wei Yeh
- School of Chinese Medicine for Post-Baccalaureate, College of Medicine, I-Shou University, Kaohsiung 82445, Taiwan; (T.-W.Y.); (Y.-Y.W.)
| | - Yun-Ya Wang
- School of Chinese Medicine for Post-Baccalaureate, College of Medicine, I-Shou University, Kaohsiung 82445, Taiwan; (T.-W.Y.); (Y.-Y.W.)
| | - Ya-Ling Chen
- Department of Obstetrics & Gynecology, E-Da Hospital/E-Da Dachang Hospital, Kaohsiung 82445, Taiwan; (Y.-L.C.); (T.-H.C.)
| | - Tzu-Hsien Chang
- Department of Obstetrics & Gynecology, E-Da Hospital/E-Da Dachang Hospital, Kaohsiung 82445, Taiwan; (Y.-L.C.); (T.-H.C.)
| | - Wei-Chin Hung
- School of Medicine, College of Medicine, I-Shou University, Kaohsiung 82445, Taiwan; (W.-C.H.); (T.-H.Y.)
- Division of Cardiology, Department of Internal Medicine, E-Da Hospital, Kaohsiung 82445, Taiwan
| | - Teng-Hung Yu
- School of Medicine, College of Medicine, I-Shou University, Kaohsiung 82445, Taiwan; (W.-C.H.); (T.-H.Y.)
- Division of Cardiology, Department of Internal Medicine, E-Da Hospital, Kaohsiung 82445, Taiwan
| |
Collapse
|
8
|
Geum NG, Yu JH, Yeo JH, Choi MY, Lee JW, Beak JK, Jeong JB. Immunostimulatory activity and anti-obesity activity of Hibiscus manihot leaves in mouse macrophages, RAW264.7 cells and mouse adipocytes, 3T3-L1 cells. J Funct Foods 2021. [DOI: 10.1016/j.jff.2021.104803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
|
9
|
Choi YE, Choi SI, Han X, Men X, Jang GW, Kwon HY, Kang SR, Han JS, Lee OKH. Radical Scavenging-Linked Anti-Adipogenic Activity of Aster scaber Ethanolic Extract and Its Bioactive Compound. Antioxidants (Basel) 2020; 9:antiox9121290. [PMID: 33339396 PMCID: PMC7766398 DOI: 10.3390/antiox9121290] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Revised: 12/11/2020] [Accepted: 12/15/2020] [Indexed: 12/13/2022] Open
Abstract
Aster scaber is a wild vegetable cultivated in Korea and is known to contain phytochemicals with various biological activities. The potential antioxidant and anti-obesity effects of A. scaber and their mechanism are yet to be reported. We evaluated the total phenolic, flavonoid, and proanthocyanidin contents and oxygen radical absorbance capacity of A. scaber ethanolic extract (ASE), and analyzed the major phenolic compounds of ASE. Antioxidant activity was measured at the chemical level through 2,2-diphenyl-1-picrylhydrazyl (DPPH), reducing power assay, 2,2′-azino-bis(3-ethylbenzthiazoline-6-sulfonic acid) (ABTS), and fluorescence recovery after photobleaching (FRAP) assay. In addition, it was measured in vitro through inhibition of Reactive oxygen species (ROS) production in 3T3-L1 adipocyte, and inhibition of lipid accumulation was also evaluated. ASE reduced the expression of enzymes involved in the production of ROS and increased the expression of antioxidant enzymes that reduce increased ROS levels. They also reduced the expression of adipogenesis transcription factors that regulate adipocyte differentiation in relation to ROS production, inhibited the expression of lipogenesis-related genes related to fat accumulation through AMP-activated protein kinase (AMPK) activity, and increased expression of lipolysis-related genes. Thus, ASE containing CGA (chlorogenic acid) inhibits ROS production in 3T3-L1 adipocytes, owing to its strong antioxidant activity, and inhibits lipid accumulation caused by oxidative stress. The extract can be used as a potential functional food material for reducing oxidative stress and obesity.
Collapse
Affiliation(s)
- Ye-Eun Choi
- Department of Food Science and Biotechnology, Kangwon National University, Chuncheon 24341, Korea; (Y.-E.C.); (S.-I.C.); (X.H.); (X.M.); (G.-W.J.); (H.-Y.K.)
| | - Sun-Il Choi
- Department of Food Science and Biotechnology, Kangwon National University, Chuncheon 24341, Korea; (Y.-E.C.); (S.-I.C.); (X.H.); (X.M.); (G.-W.J.); (H.-Y.K.)
| | - Xionggao Han
- Department of Food Science and Biotechnology, Kangwon National University, Chuncheon 24341, Korea; (Y.-E.C.); (S.-I.C.); (X.H.); (X.M.); (G.-W.J.); (H.-Y.K.)
| | - Xiao Men
- Department of Food Science and Biotechnology, Kangwon National University, Chuncheon 24341, Korea; (Y.-E.C.); (S.-I.C.); (X.H.); (X.M.); (G.-W.J.); (H.-Y.K.)
| | - Gill-Woong Jang
- Department of Food Science and Biotechnology, Kangwon National University, Chuncheon 24341, Korea; (Y.-E.C.); (S.-I.C.); (X.H.); (X.M.); (G.-W.J.); (H.-Y.K.)
| | - Hee-Yeon Kwon
- Department of Food Science and Biotechnology, Kangwon National University, Chuncheon 24341, Korea; (Y.-E.C.); (S.-I.C.); (X.H.); (X.M.); (G.-W.J.); (H.-Y.K.)
| | - Seong-Ran Kang
- The Food Industry Promotional Agency of Korea, Iksan 54576, Korea; (S.-R.K.); (J.-S.H.)
| | - Jin-Soo Han
- The Food Industry Promotional Agency of Korea, Iksan 54576, Korea; (S.-R.K.); (J.-S.H.)
| | - OK-Hwan Lee
- Department of Food Science and Biotechnology, Kangwon National University, Chuncheon 24341, Korea; (Y.-E.C.); (S.-I.C.); (X.H.); (X.M.); (G.-W.J.); (H.-Y.K.)
- Correspondence: ; Tel.: +82-33-250-6454; Fax: +82-33-259-5565
| |
Collapse
|
10
|
Guru A, Issac PK, Velayutham M, Saraswathi NT, Arshad A, Arockiaraj J. Molecular mechanism of down-regulating adipogenic transcription factors in 3T3-L1 adipocyte cells by bioactive anti-adipogenic compounds. Mol Biol Rep 2020; 48:743-761. [PMID: 33275195 DOI: 10.1007/s11033-020-06036-8] [Citation(s) in RCA: 54] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Accepted: 11/25/2020] [Indexed: 12/24/2022]
Abstract
Obesity is growing at an alarming rate, which is characterized by increased adipose tissue. It increases the probability of many health complications, such as diabetes, arthritis, cardiac disease, and cancer. In modern society, with a growing population of obese patients, several individuals have increased insulin resistance. Herbal medicines are known as the oldest method of health care treatment for obesity-related secondary health issues. Several traditional medicinal plants and their effective phytoconstituents have shown anti-diabetic and anti-adipogenic activity. Adipose tissue is a major site for lipid accumulation as well as the whole-body insulin sensitivity region. 3T3-L1 cell line model can achieve adipogenesis. Adipocyte characteristics features such as expression of adipocyte markers and aggregation of lipids are chemically induced in the 3T3-L1 fibroblast cell line. Differentiation of 3T3-L1 is an efficient and convenient way to obtain adipocyte like cells in experimental studies. Peroxisome proliferation activated receptor γ (PPARγ) and Cytosine-Cytosine-Adenosine-Adenosine-Thymidine/Enhancer-binding protein α (CCAAT/Enhancer-binding protein α or C/EBPα) are considered to be regulating adipogenesis at the early stage, while adiponectin and fatty acid synthase (FAS) is responsible for the mature adipocyte formation. Excess accumulation of these adipose tissues and lipids leads to obesity. Thus, investigating adipose tissue development and the underlying molecular mechanism is important in the therapeutical approach. This review describes the cellular mechanism of 3T3-L1 fibroblast cells on potential anti-adipogenic herbal bioactive compounds.
Collapse
Affiliation(s)
- Ajay Guru
- SRM Research Institute, SRM Institute of Science and Technology, Kattankulathur, Chennai, Tamil Nadu, 603203, India
| | - Praveen Kumar Issac
- SRM Research Institute, SRM Institute of Science and Technology, Kattankulathur, Chennai, Tamil Nadu, 603203, India
| | - Manikandan Velayutham
- SRM Research Institute, SRM Institute of Science and Technology, Kattankulathur, Chennai, Tamil Nadu, 603203, India
| | - N T Saraswathi
- Molecular Biophysics Lab, School of Chemical and Biotechnology, SASTRA Deemed to be University, Thanjavur, Tamil Nadu, 613401, India
| | - Aziz Arshad
- International Institute of Aquaculture and Aquatic Sciences (I-AQUAS), Universiti Putra Malaysia, 71050, Port Dickson, Negeri Sembilan, Malaysia
- Department of Aquaculture, Faculty of Agriculture, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia
| | - Jesu Arockiaraj
- SRM Research Institute, SRM Institute of Science and Technology, Kattankulathur, Chennai, Tamil Nadu, 603203, India.
| |
Collapse
|
11
|
Rufino AT, Costa VM, Carvalho F, Fernandes E. Flavonoids as antiobesity agents: A review. Med Res Rev 2020; 41:556-585. [PMID: 33084093 DOI: 10.1002/med.21740] [Citation(s) in RCA: 66] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Revised: 09/02/2020] [Accepted: 09/30/2020] [Indexed: 12/11/2022]
Abstract
Obesity is a global health problem that affects all age groups in both developing and developed countries. In recent years, the prevalence of overweight and obesity has reached pandemic levels, resulting in a dramatic increase in the incidence of various comorbidities, such as cardiovascular diseases, type 2 diabetes, and cancer, consequently leading to massive health and socioeconomic burdens. Together with lifestyle changes, antiobesity pharmacotherapy is gaining momentum as an adjunctive treatment. However, the available pharmacological approaches have limited use owing to either significant adverse effects or low efficacy. Over the years, natural products have been an important source of lead compounds for drug discovery. Among these, flavonoids are associated with important biological effects and health-promoting activities. In this review, we discuss the modulatory effects of flavonoids on obesity and their potential mechanisms of action. The literature strongly suggests that most common flavonoids demonstrate a pronounced effect on obesity as shown by their ability to lower body weight, fat mass, and plasma triglycerides/cholesterol, both in in vitro and in vivo models. The impact of flavonoids on obesity can be observed through different mechanisms: reducing food intake and fat absorption, increasing energy expenditure, modulating lipid metabolism, or regulating gut microbiota profile. A better understanding of the known antiobesity mechanisms of flavonoids will enable their potential use to treat this medical condition. Therefore, this review focuses on the putative biological mechanisms through which flavonoids may prevent or treat obesity and highlights new perspectives on future pharmacological use.
Collapse
Affiliation(s)
- Ana T Rufino
- LAQV, REQUIMTE, Laboratory of Applied Chemistry, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Porto, Portugal
| | - Vera M Costa
- UCIBIO, REQUIMTE, Laboratory of Toxicology, Department of Biological Sciences, Faculty of Pharmacy, University of Porto, Porto, Portugal
| | - Félix Carvalho
- UCIBIO, REQUIMTE, Laboratory of Toxicology, Department of Biological Sciences, Faculty of Pharmacy, University of Porto, Porto, Portugal
| | - Eduarda Fernandes
- LAQV, REQUIMTE, Laboratory of Applied Chemistry, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Porto, Portugal
| |
Collapse
|
12
|
Luan F, Wu Q, Yang Y, Lv H, Liu D, Gan Z, Zeng N. Traditional Uses, Chemical Constituents, Biological Properties, Clinical Settings, and Toxicities of Abelmoschus manihot L.: A Comprehensive Review. Front Pharmacol 2020; 11:1068. [PMID: 32973492 PMCID: PMC7482509 DOI: 10.3389/fphar.2020.01068] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Accepted: 06/30/2020] [Indexed: 12/14/2022] Open
Abstract
Abelmoschus manihot, an annual herbal flowering plant, is widely distributed throughout eastern Europe and in temperate and subtropical regions of Asia. Its flowers have been traditionally used for the treatment of chronic kidney disease in China. Currently, more than 128 phytochemical ingredients have been obtained and identified from the flowers, seeds, stems, and leaves of A. manihot. The primary components are flavonoids, amino acids, nucleosides, polysaccharides, organic acids, steroids, and volatile oils. A. manihot and its bioactive constituents possess a plethora of biological properties, including antidiabetic nephropathy, antioxidant, antiadipogenic, anti-inflammatory, analgesic, anticonvulsant, antidepressant, antiviral, antitumor, cardioprotective, antiplatelet, neuroprotective, immunomodulatory, and hepatoprotective activities, and have effects on cerebral infarction, bone loss, etc. However, insufficient utilization and excessive waste have already led to a rapid reduction of resources, meaning that a study on the sustainable use of A. manihot is urgent and necessary. Moreover, the major biologically active constituents and the mechanisms of action of the flowers have yet to be elucidated. The present paper provides an early and comprehensive review of the traditional uses, chemical constituents, pharmacological activities, and pharmaceutical, quality control, toxicological, and clinical settings to emphasize the benefits of this plant and lays a solid foundation for further development of A. manihot.
Collapse
Affiliation(s)
- Fei Luan
- Department of Clinical Pharmacy, Shaanxi Provincial Hospital of Tuberculosis Prevention and Treatment, Xi'an, China.,Department of Pharmacology, College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Qianhong Wu
- Department of Clinical Pharmacy, Shaanxi Provincial Hospital of Tuberculosis Prevention and Treatment, Xi'an, China
| | - Yan Yang
- Department of Bioengineering, Zhuhai Campus of Zunyi Medical University, Zhuhai, China
| | - Haizhen Lv
- Department of Clinical Pharmacy, Shaanxi Provincial Hospital of Tuberculosis Prevention and Treatment, Xi'an, China
| | - Daoheng Liu
- Department of Clinical Pharmacy, Shaanxi Provincial Hospital of Tuberculosis Prevention and Treatment, Xi'an, China
| | - Zhaoping Gan
- Department of Clinical Pharmacy, Shaanxi Provincial Hospital of Tuberculosis Prevention and Treatment, Xi'an, China
| | - Nan Zeng
- Department of Pharmacology, College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| |
Collapse
|
13
|
Park YI, Cha YE, Jang M, Park R, Namkoong S, Kwak J, Jang IS, Park J. The Flower Extract of Abelmoschus manihot (Linn.) Increases Cyclin D1 Expression and Activates Cell Proliferation. J Microbiol Biotechnol 2020; 30:1044-1050. [PMID: 32160700 PMCID: PMC9728244 DOI: 10.4014/jmb.2002.02024] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Accepted: 03/04/2020] [Indexed: 12/15/2022]
Abstract
Abelmoschus manihot (Linn.) is a medicinal herbal plant that is commonly used to treat chronic kidney disease and hepatitis. However, its effect on cell proliferation has not been clearly revealed. In this report, we sought to determine the effect of the flower extract of A. manihot (FA) on cell proliferation. Based on our findings, FA increased the proliferation of human diploid fibroblast (HDF) and HEK293 cells. Through cell cycle analysis, FA was found to increase the number of HDF cells in the S phase and G2/M phase. FA also increased the expression of cyclin D1 and enhanced the migration of HDF cells. By administering FA to HDF cells with ≥30 passages, a decrease in the number of senescence-associated β galactosidase-positive cells was observed, thereby indicating that FA can ameliorate cellular senescence. Collectively, our findings indicate that FA increases cyclin D1 expression and regulates cell proliferation.
Collapse
Affiliation(s)
- Yea-In Park
- Division of Biological Science and Technology, Yonsei University, Wonju 26493, Republic of Korea
| | - Yeo-Eun Cha
- Division of Biological Science and Technology, Yonsei University, Wonju 26493, Republic of Korea
| | - Minsu Jang
- Division of Biological Science and Technology, Yonsei University, Wonju 26493, Republic of Korea
| | - Rackhyun Park
- Division of Biological Science and Technology, Yonsei University, Wonju 26493, Republic of Korea
| | - Sim Namkoong
- Department of Biochemistry, Kangwon National University, Chuncheon 24341, Republic of Korea
| | | | - Ik-Soon Jang
- Division of Analytical Science, Korea Basic Science Institute, Daejeon 34133, Republic of Korea
| | - Junsoo Park
- Division of Biological Science and Technology, Yonsei University, Wonju 26493, Republic of Korea,Corresponding author Phone: +82-33-760-2560 Fax: +82-33-760-2183 E-mail:
| |
Collapse
|
14
|
Wan Y, Wang M, Zhang K, Fu Q, Wang L, Gao M, Xia Z, Gao D. Extraction and determination of bioactive flavonoids from
Abelmoschus manihot
(Linn.) Medicus flowers using deep eutectic solvents coupled with high‐performance liquid chromatography. J Sep Sci 2019; 42:2044-2052. [DOI: 10.1002/jssc.201900031] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2019] [Revised: 03/20/2019] [Accepted: 04/01/2019] [Indexed: 12/12/2022]
Affiliation(s)
- Yuyan Wan
- School of PharmacySouthwest Medical University Luzhou Sichuan P. R. China
| | - Min Wang
- School of PharmacySouthwest Medical University Luzhou Sichuan P. R. China
| | - Kailian Zhang
- School of PharmacySouthwest Medical University Luzhou Sichuan P. R. China
| | - Qifeng Fu
- School of PharmacySouthwest Medical University Luzhou Sichuan P. R. China
| | - Lujun Wang
- School of PharmacySouthwest Medical University Luzhou Sichuan P. R. China
| | - Manjie Gao
- School of PharmacySouthwest Medical University Luzhou Sichuan P. R. China
| | - Zhining Xia
- School of Pharmaceutical SciencesChongqing University Chongqing P. R. China
| | - Die Gao
- School of PharmacySouthwest Medical University Luzhou Sichuan P. R. China
| |
Collapse
|
15
|
Zhu GS, Tang LY, Lv DL, Jiang M. Total Flavones of Abelmoschus manihot Exhibits Pro-Angiogenic Activity by Activating the VEGF-A/VEGFR2-PI3K/Akt Signaling Axis. THE AMERICAN JOURNAL OF CHINESE MEDICINE 2018; 46:567-583. [PMID: 29595071 DOI: 10.1142/s0192415x18500295] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Angiogenesis is a process of new blood vessel formation from pre-existing vessels. Vascular endothelial growth factor-A (VEGF-A) binds to VEGF receptor-2 (VEGFR2) and thus activation of phosphatidylinositol 3-kinase (PI3K)/Akt pathway play a central role in angiogenesis. Total flavones of Abelmoschus manihot (TFA), the major active component of the traditional Chinese herb Abelmoschus manihot, display novel pro-angiogenic activity. However, little information concerning its underlying mechanism is available. Here we investigate the pro-angiogenesis of TFA with the aim of understanding its mechanism of action. Human umbilical vein endothelial cells (HUVECs) and the chick chorioallantoic membrane (CAM) model were used to evaluate pro-angiogenesis of TFA using cell viability, wounding healing, transwell invasion, tube formation, RT-qPCR and Western blot methods. LY294002, a PI3K inhibitor, was used to interfere with PI3K/Akt pathway signal for assessing the underlying mechanism. Results in vitro indicated TFA obviously promoted HUVECs proliferation, migration, invasion and tube formation. Furthermore, TFA markedly augmented PI3K and Akt phosphorylation and up-regulated VEGF-A and VEGFR2 expression in HUVECs. However, pre-treatment with LY294002 not only markedly attenuated TFA-induced cells proliferation, migration, invasion and tube formation, but also significantly abolished TFA-induced VEGF-A and VEGFR2 over-expression as well as PI3K and Akt phosphorylation. Experiments in CAM model showed TFA significantly promoted the formation of branched blood vessels and was dramatically suppressed by LY294002. Taken together, TFA promoted angiogenesis both in vitro and in vivo which, however, were counteracted by LY294002, suggesting at least in part, TFA exhibits pro-angiogenic activity by activating the VEGF-A/VEGFR2-PI3K/Akt signaling axis.
Collapse
Affiliation(s)
- Gui-Song Zhu
- * Intensive Care Unit, The Third Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing 210001, P. R. China.,† Nanjing University of Chinese Medicine, Nanjing 210029, P. R. China
| | - Ling-Yi Tang
- † Nanjing University of Chinese Medicine, Nanjing 210029, P. R. China
| | - Dong-Ling Lv
- ‡ Department of Outpatient, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing 210029, P. R. China
| | - Meng Jiang
- § Good Clinical Practice, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing 210029, P. R. China
| |
Collapse
|
16
|
Du LY, Tao JH, Jiang S, Qian DW, Guo JM, Duan JA. Metabolic profiles of the Flos Abelmoschus manihot extract by intestinal bacteria from the normal and CKD model rats based on UPLC-Q-TOF/MS. Biomed Chromatogr 2016; 31. [PMID: 27451133 DOI: 10.1002/bmc.3795] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2016] [Revised: 06/21/2016] [Accepted: 07/20/2016] [Indexed: 01/12/2023]
Abstract
Flos Abelmoschus manihot is a traditional herbal medicine widely used in clinical practice to tackle chronic kidney disease (CKD) for thousands of years. Nowadays, many studies indicate that gut bacteria are closely related to the progression of CKD and CKD-related complications. In this study, a UPLC-Q-TOF/MS method coupled with the MetaboLynx™ software was established and successfully applied to investigate the metabolites and metabolic profile of Flos A. manihot extract by intestinal bacteria from normal and CKD rats. Eight parent components and eight metabolites were characterized by their protonated ions. Among these compounds, 15 were detected in the two group samples while M16 was only determined in the CKD model samples. Compared with the quercetin-type glycosides, fewer myricetin-type and gossypetin-type metabolites were obtained in the two group samples. These metabolites suggested that deglycosylation and methylation are the major metabolic pathways of Flos A. manihot extract. Few differences of metabolite classes were observed in the two group samples. However, the concentrations of aglycones such as quercetin, myricetin and gossypetin in the normal samples were notably higher than those in the CKD model samples. The results are important in unravelling the pharmacological effects of A. manihot and clarifying its mechanism of action in vivo.
Collapse
Affiliation(s)
- Le-Yue Du
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Nanjing University of Chinese Medicine, 138 Xianlin Road, Nanjing, 210023, People's Republic of China
| | - Jin-Hua Tao
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Nanjing University of Chinese Medicine, 138 Xianlin Road, Nanjing, 210023, People's Republic of China
| | - Shu Jiang
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Nanjing University of Chinese Medicine, 138 Xianlin Road, Nanjing, 210023, People's Republic of China
| | - Da-Wei Qian
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Nanjing University of Chinese Medicine, 138 Xianlin Road, Nanjing, 210023, People's Republic of China
| | - Jian-Ming Guo
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Nanjing University of Chinese Medicine, 138 Xianlin Road, Nanjing, 210023, People's Republic of China
| | - Jin-Ao Duan
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Nanjing University of Chinese Medicine, 138 Xianlin Road, Nanjing, 210023, People's Republic of China
| |
Collapse
|
17
|
Processed Panax ginseng, sun ginseng, inhibits the differentiation and proliferation of 3T3-L1 preadipocytes and fat accumulation in Caenorhabditis elegans. J Ginseng Res 2016; 41:257-267. [PMID: 28701865 PMCID: PMC5489751 DOI: 10.1016/j.jgr.2016.04.004] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2014] [Revised: 04/21/2016] [Accepted: 04/24/2016] [Indexed: 01/11/2023] Open
Abstract
Background Heat-processed ginseng, sun ginseng (SG), has been reported to have improved therapeutic properties compared with raw forms, such as increased antidiabetic, anti-inflammatory, and antihyperglycemic effects. The aim of this study was to investigate the antiobesity effects of SG through the suppression of cell differentiation and proliferation of mouse 3T3-L1 preadipocyte cells and the lipid accumulation in Caenorhabditis elegans. Methods To investigate the effect of SG on adipocyte differentiation, levels of stained intracellular lipid droplets were quantified by measuring the oil red O signal in the lipid extracts of cells on differentiation Day 7. To study the effect of SG on fat accumulation in C. elegans, L4 stage worms were cultured on an Escherichia coli OP50 diet supplemented with 10 μg/mL of SG, followed by Nile red staining. To determine the effect of SG on gene expression of lipid and glucose metabolism-regulation molecules, messenger RNA (mRNA) levels of genes were analyzed by real-time reverse transcription-polymerase chain reaction analysis. In addition, the phosphorylation of Akt was examined by Western blotting. Results SG suppressed the differentiation of 3T3-L1 cells stimulated by a mixture of 3-isobutyl-1-methylxanthine, dexamethasone, and insulin (MDI), and inhibited the proliferation of adipocytes during differentiation. Treatment of C. elegans with SG showed reductions in lipid accumulation by Nile red staining, thus directly demonstrating an antiobesity effect for SG. Furthermore, SG treatment downregulated mRNA and protein expression levels of peroxisome proliferator-activated receptor subtype γ (PPARγ) and CCAAT/enhancer-binding protein-alpha (C/EBPα) and decreased the mRNA level of sterol regulatory element-binding protein 1c in MDI-treated adipocytes in a dose-dependent manner. In differentiated 3T3-L1 cells, mRNA expression levels of lipid metabolism-regulating factors, such as amplifying mouse fatty acid-binding protein 2, leptin, lipoprotein lipase, fatty acid transporter protein 1, fatty acid synthase, and 3-hydroxy-3-methylglutaryl coenzyme A reductase, were increased, whereas that of the lipolytic enzyme carnitine palmitoyltransferase-1 was decreased. Our data demonstrate that SG inversely regulated the expression of these genes in differentiated adipocytes. SG induced increases in the mRNA expression of glycolytic enzymes such as glucokinase and pyruvate kinase, and a decrease in the mRNA level of the glycogenic enzyme phosphoenol pyruvate carboxylase. In addition, mRNA levels of the glucose transporters GLUT1, GLUT4, and insulin receptor substrate-1 were elevated by MDI stimulation, whereas SG dose-dependently inhibited the expression of these genes in differentiated adipocytes. SG also inhibited the phosphorylation of Akt (Ser473) at an early phase of MDI stimulation. Intracellular nitric oxide (NO) production and endothelial nitric oxide synthase mRNA levels were markedly decreased by MDI stimulation and recovered by SG treatment of adipocytes. Conclusion Our results suggest that SG effectively inhibits adipocyte proliferation and differentiation through the downregulation of PPARγ and C/EBPα, by suppressing Akt (Ser473) phosphorylation and enhancing NO production. These results provide strong evidence to support the development of SG for antiobesity treatment.
Collapse
|
18
|
Yan JY, Ai G, Zhang XJ, Xu HJ, Huang ZM. Investigations of the total flavonoids extracted from flowers of Abelmoschus manihot (L.) Medic against α-naphthylisothiocyanate-induced cholestatic liver injury in rats. JOURNAL OF ETHNOPHARMACOLOGY 2015; 172:202-213. [PMID: 26133062 DOI: 10.1016/j.jep.2015.06.044] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2014] [Revised: 03/23/2015] [Accepted: 06/25/2015] [Indexed: 06/04/2023]
Abstract
ETHNOPHARMACOLOGY RELEVANCE The decoction of the flowers of Abelmoschus manihot (L.) Medic was traditionally used for the treatment of jaundice and various types of chronic and acute hepatitis in Anhui and Jiangsu Provinces of China for hundreds of years. Phytochemical studies have indicated that total flavonoids extracted from flowers of A. manihot (L.) Medic (TFA) were the major constituents of the flowers. Our previous studies have investigated the hepatoprotective effects of the TFA against carbon tetrachloride (CCl4) induced hepatocyte damage in vitro and liver injury in vivo. This study aimed to investigate the protective effects and mechanisms of TFA on α-naphthylisothiocyanate (ANIT)-induced cholestatic liver injury in rats. MATERIAL AND METHODS The hepatoprotective activities of TFA (125, 250 and 500mg/kg) were investigated on ANIT-induced cholestatic liver injury in rats. The serum levels of alanine aminotransferase (ALT), aspartate aminotransferase (AST), and lactate dehydrogenase (LDH) were used as indices of hepatic cell damage and measured. Meanwhile, the serum levels of alkaline phosphatase (ALP), gamma-glutamyltransferase (GGT), total bilirubin (TBIL), direct bilirubin (DBIL), and total bile acid (TBA) were used as indices of biliary cell damage and cholestasis and evaluated. Hepatic malondialdehyde (MDA), glutathione (GSH), superoxide dismutase (SOD), glutathione transferase (GST), tumor necrosis factor-α (TNF-α) and nitric oxide (NO) were measured in the liver homogenates. The bile flow in 4h was estimated and the histopathology of the liver tissue was evaluated. Furthermore, the expression of transporters, bile salt export pump (BSEP), multidrug resistance-associated protein 2 (MRP2), and Na(+)-taurocholate cotransporting polypeptide (NTCP) were studied by western blot and reverse transcription-quantitative real-time polymerase chain reaction (RT-PCR) to elucidate the protective mechanisms of TFA against ANIT-induced cholestasis. RESULTS The oral administration of TFA to ANIT-treated rats could reduce the increases in serum levels of ALT, AST, LDH, ALP, GGT, TBIL, DBIL and TBA. Decreased bile flow by ANIT was restored with TFA treatment. Concurrent administration of TFA reduced the severity of polymorphonuclear neutrophil infiltration and other histological damages, which were consistent with the serological tests. Hepatic MDA and GSH contents in liver tissue were reduced, while SOD and GST activities, which had been suppressed by ANIT, were elevated in the groups pretreated with TFA. With TFA intervention, levels of TNF-α and NO in liver were decreased. Additionally, TFA was found to increase the expression of liver BSEP, MRP2, and NTCP in both protein and mRNA levels in ANIT-induced liver injury with cholestasis. CONCLUSION TFA exerted protective effects against ANIT-induced liver injury. The possible mechanisms could be related to anti-oxidative damage, anti-inflammation and regulating the expression of hepatic transporters. It layed the foundation for the further research on the mechanisms of cholestasis as well as the therapeutic effects of A. manihot (L.) Medic for the treatment of jaundice.
Collapse
Affiliation(s)
- Jia-Yin Yan
- Department of Pharmacy, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Guo Ai
- Institute of Aviation Medicine of Air Force, Beijing 100142, China; Institute of Radiation Medicine, Academy of Military Medical Sciences, Beijing 100850, China.
| | - Xiao-Jian Zhang
- Department of Pharmacy, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Hai-Jiang Xu
- Department of Pharmacy, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Zheng-Ming Huang
- Department of Pharmacy, 302 Hospital of PLA, Beijing 100039, China
| |
Collapse
|
19
|
Kwon TH, Wu YX, Kim JS, Woo JH, Park KT, Kwon OJ, Seo HJ, Kim T, Park NH. 6,6'-Bieckol inhibits adipocyte differentiation through downregulation of adipogenesis and lipogenesis in 3T3-L1 cells. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2015; 95:1830-7. [PMID: 25142414 DOI: 10.1002/jsfa.6881] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2014] [Revised: 08/13/2014] [Accepted: 08/14/2014] [Indexed: 06/03/2023]
Abstract
BACKGROUND Brown algae have been used for their nutritional value as well as a source of bioactive compounds with antioxidant, anti-inflammatory, antimicrobial and anti-obesity effects. Obesity is an important condition implicated in various diseases, including diabetes, hypertension, dyslipidemia and coronary heart disease. However, anti-obesity effects of Eisenia bicyclis remain unknown. RESULTS We investigated the anti-obesity effects of 6,6'-bieckol, 6,8'-bieckol, 8,8'-bieckol, dieckol and phlorofucofuroeckol A isolated from E. bicyclis. Anti-obesity activity was evaluated by examining the inhibition of differentiation of 3T3-L1 adipocytes and the expression of peroxisome proliferator-activated receptor γ (PPARγ), CCATT/enhancer-binding protein α (C/EBPα) and sterol regulatory element binding protein-1c (SREBP-1c) at the mRNA and protein level. Differentiated 3T3-L1 cells were treated with the purified phlorotannins at concentrations of 10, 25 and 50 µg mL(-1) for 8 days. The results indicated that the purified phlorotannins suppressed the differentiation of 3T3-L1 adipocytes in a dose-dependent manner, without toxic effects. Among the five compounds, 6,6'-bieckol markedly decreased lipid accumulation and expression levels of PPARγ, C/EBPα, SREBP-1c (mRNA and protein), and fatty acid synthase and acyl-coA carboxylase (mRNA). CONCLUSION These findings suggest that E. bicyclis suppressed differentiation of 3T3-L1 adipocyte through downregulation of adipogenesis and lipogenesis.
Collapse
Affiliation(s)
- Tae-Hyung Kwon
- Gyeongbuk Institute for Marine Bio-Industry, Uljin, 767-813, Republic of Korea
- Food Science and Biotechnology Major, Andong National University, Andong, 760-749, Republic of Korea
| | - Yong-Xiang Wu
- Food Science and Biotechnology Major, Andong National University, Andong, 760-749, Republic of Korea
| | - Jong-Shik Kim
- Gyeongbuk Institute for Marine Bio-Industry, Uljin, 767-813, Republic of Korea
| | - Jung-Hee Woo
- Gyeongbuk Institute for Marine Bio-Industry, Uljin, 767-813, Republic of Korea
| | - Kyu Tae Park
- Gyeongbuk Institute for Marine Bio-Industry, Uljin, 767-813, Republic of Korea
| | - O Jun Kwon
- Daegyeong Institute for Regional Program Evaluation, Gyeongsan, 712-210, Republic of Korea
| | - Hyun-Ju Seo
- School of Food Science Kyungil University, Gyeongsan, 712-701, Republic of Korea
| | - Taewan Kim
- Food Science and Biotechnology Major, Andong National University, Andong, 760-749, Republic of Korea
| | - Nyun-Ho Park
- Gyeongbuk Institute for Marine Bio-Industry, Uljin, 767-813, Republic of Korea
| |
Collapse
|
20
|
Wang A, Lin L, Wang Y. Traditional Chinese Herbal Medicine Penthorum chinense Pursh: A Phytochemical and Pharmacological Review. THE AMERICAN JOURNAL OF CHINESE MEDICINE 2015; 43:601-20. [PMID: 26119956 DOI: 10.1142/s0192415x15500378] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Penthorum chinense Pursh (ganhuangcao), a traditional Chinese medicine, is used for the prevention and treatment of liver diseases, including hepatitis B, hepatitis C, and alcoholic liver damage. A wide range of investigations have been carried out on this herbal medicine from pharmacognosy to pharmaceuticals, as well as pharmacology. The extract of P. chinense was reported to have significant liver protective effects through anti-oxidation, reduction of key enzyme levels, inhibition of hepatitis B virus DNA replication, and promotion of bile secretion. Based on the current knowledge, flavonoids and phenols are considered to be responsible for P. chinense's bioactivities. The main purpose of this review is to provide comprehensive and up-to-date knowledge of the phytochemical and pharmacological studies performed on P. chinense during the past few decades. Moreover, it intends to provide new insights into the research and development of this herbal medicine.
Collapse
Affiliation(s)
- Anqi Wang
- State Key Laboratory of Quality Research in Chinese Medicine and Institute of Chinese Medical Sciences, University of Macau, Macau, China
| | - Ligen Lin
- State Key Laboratory of Quality Research in Chinese Medicine and Institute of Chinese Medical Sciences, University of Macau, Macau, China
| | - Yitao Wang
- State Key Laboratory of Quality Research in Chinese Medicine and Institute of Chinese Medical Sciences, University of Macau, Macau, China
| |
Collapse
|
21
|
Total Flavonoids from Flowers of Abelmoschus manihot for Amelioration of α-naphthylisothiocyanate-induced Cholestasis by Regulating Expression of Transporters. CHINESE HERBAL MEDICINES 2015. [DOI: 10.1016/s1674-6384(15)60033-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
|
22
|
Wang Q, Wang ST, Yang X, You PP, Zhang W. Myricetin suppresses differentiation of 3 T3-L1 preadipocytes and enhances lipolysis in adipocytes. Nutr Res 2015; 35:317-27. [PMID: 25724338 DOI: 10.1016/j.nutres.2014.12.009] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2014] [Revised: 12/29/2014] [Accepted: 12/30/2014] [Indexed: 11/15/2022]
Abstract
Myricetin (MyR), a naturally occurring flavonol widely distributed in fruits, vegetables, and medicinal plants, has anticancer, anti-inflammatory, antihyperlipidaemic, and antiobesity activities. In the present study, we hypothesized that the antiobesity property of MyR is mediated via suppression of differentiation of preadipocytes into adipocytes and promotion of lipolysis of mature adipocytes, which effectively decrease the intracellular triglyceride concentration of adipocytes. Accordingly, the aim of this work was to investigate the effects of MyR on adipocyte differentiation and lipolysis in differentiated 3 T3-L1 adipocytes. Our results showed that MyR inhibited differentiation of 3 T3-L1 preadipocytes in a concentration-dependent manner. Myricetin downregulated the mRNA and protein levels of CCAAT/enhancer-binding protein α and peroxisome proliferator-activated receptor γ, both of which are major adipogenic transcription factors. Furthermore, the mRNA levels of other adipogenesis-related transcription factors, namely, CCAAT/enhancer-binding protein β, sterin regulatory element binding protein 1-c, peroxisome proliferator-activated receptor γ coactivator-1, adipocyte protein 2, lipoprotein lipase and glucose transporter 4, were also reduced by MyR treatment. Moreover, MyR significantly inhibited the phosphorylation of extracellular signal-regulated kinase, Jun N-terminal kinase, and p38 during the differentiation process. On the other hand, MyR induced a dose-dependent increase in glycerol release in fully differentiated adipocytes, indicating its stimulatory effect on adipocyte lipolysis. Furthermore, MyR downregulated mRNA level of perilipin A and enhanced the phosphorylation level of extracellular signal-regulated kinase, Jun N-terminal kinase, and p38 during lipolysis. Taken together, these findings indicate that MyR exerts antiobesity activity in adipocytes.
Collapse
Affiliation(s)
- Qian Wang
- School of Life Sciences, East China Normal University
| | | | - Xin Yang
- School of Life Sciences, East China Normal University
| | - Pan-pan You
- School of Life Sciences, East China Normal University
| | - Wen Zhang
- School of Life Sciences, East China Normal University.
| |
Collapse
|
23
|
He L, Pei H, Ma L, Pu Y, Chen J, Liu Z, Ran Y, Lei L, Fu S, Tang M, Peng A, Long C, Chen L. Synthesis and lipid-lowering evaluation of 3-methyl-1H-purine-2,6-dione derivatives as potent and orally available anti-obesity agents. Eur J Med Chem 2014; 87:595-610. [DOI: 10.1016/j.ejmech.2014.09.094] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2014] [Revised: 09/25/2014] [Accepted: 09/29/2014] [Indexed: 02/01/2023]
|
24
|
Chemical constituents of Morus alba L. and their inhibitory effect on 3T3-L1 preadipocyte proliferation and differentiation. Fitoterapia 2014; 98:222-7. [DOI: 10.1016/j.fitote.2014.08.010] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2014] [Revised: 08/04/2014] [Accepted: 08/05/2014] [Indexed: 01/08/2023]
|
25
|
Yang ZG, Wen XF, Li YH, Matsuzaki K, Kitanaka S. Inhibitory effects of the constituents of Hippophae rhamnoides on 3T3-L1 cell differentiation and nitric oxide production in RAW264.7 cells. Chem Pharm Bull (Tokyo) 2013; 61:279-85. [PMID: 23449196 DOI: 10.1248/cpb.c12-00835] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Three new flavonol glycosides, hippophaeosides A-C (1-3), together with 27 known constituents, were isolated from Hippophae rhamnoides L. leaves. Their structures were determined by spectroscopic analyses. Their inhibitory activities on 3T3-L1 preadipocyte differentiation and triglyceride accumulation in maturing adipocytes, and nitric oxide production in RAW264.7 cells were examined.
Collapse
Affiliation(s)
- Zhi-Gang Yang
- School of Pharmacy, Nihon University, Funabashi, Chiba, Japan
| | | | | | | | | |
Collapse
|
26
|
Romano B, Pagano E, Montanaro V, Fortunato AL, Milic N, Borrelli F. Novel Insights into the Pharmacology of Flavonoids. Phytother Res 2013; 27:1588-96. [DOI: 10.1002/ptr.5023] [Citation(s) in RCA: 171] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2013] [Accepted: 05/15/2013] [Indexed: 01/23/2023]
Affiliation(s)
- Barbara Romano
- Department of Urology; University of Naples Federico II; via D. Montesano 49 80131 Naples Italy
| | - Ester Pagano
- Department of Urology; University of Naples Federico II; via D. Montesano 49 80131 Naples Italy
| | - Vittorino Montanaro
- Department of Pharmacy; University of Naples Federico II; via Pansini 5 80131 Naples Italy
| | - Alfonso L. Fortunato
- Department of Urology; University of Naples Federico II; via D. Montesano 49 80131 Naples Italy
| | - Natasa Milic
- Department of Pharmacy; Faculty of Medicine, University of Novi Sad; Hajduk Veljkova, 3 21000 Novi Sad Serbia
| | - Francesca Borrelli
- Department of Urology; University of Naples Federico II; via D. Montesano 49 80131 Naples Italy
| |
Collapse
|
27
|
Ho JN, Choi JW, Lim WC, Kim MK, Lee IY, Cho HY. Kefir inhibits 3T3-L1 adipocyte differentiation through down-regulation of adipogenic transcription factor expression. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2013; 93:485-490. [PMID: 22821258 DOI: 10.1002/jsfa.5792] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2011] [Revised: 05/30/2012] [Accepted: 06/06/2012] [Indexed: 06/01/2023]
Abstract
BACKGROUND Kefir, a traditional fermented milk composed of microbial symbionts, is reported to have various health benefits such as anti-tumour, anti-inflammatory, anti-neoplastic and pro-digestive effects. In this study, to elucidate the effects of kefir on adipocyte differentiation and lipid accumulation, three fractions were prepared from kefir culture broth. The inhibitory effects of kefir liquid culture broth fraction (Fr-1), soluble fraction (Fr-2) and insoluble fraction (Fr-3), prepared by sonication of kefir solid culture broth, on adipocyte differentiation in 3T3-L1 preadipocytes were examined. RESULTS Fr-3 (0.1 mg mL(-1)) significantly decreased lipid accumulation and glycerol-3-phosphate dehydrogenase (GPDH) activity by 60 and 68% respectively without affecting cell viability. In addition, Fr-3 treatment down-regulated the mRNA expression of adipogenic transcription factors including C/EBPα (32%), PPARγ (46%) and SREBP-1c (34%) during adipocyte differentiation compared with untreated control cells. The mRNA expression of adipocyte-specific genes (aP2, FAS and ACC) was also clearly decreased. CONCLUSION The results suggest that the insoluble fraction of kefir (Fr-3) mediates anti-adipogenic effects through the inhibition of adipocyte differentiation, partly via suppression of the C/EBPα-, SREBP-1c- and PPARγ-dependent pathways.
Collapse
Affiliation(s)
- Jin-Nyoung Ho
- Department of Medical Nutrition, Kyung Hee University, Yongin 446-701, Korea
| | | | | | | | | | | |
Collapse
|
28
|
Liquiritin attenuates advanced glycation end products-induced endothelial dysfunction via RAGE/NF-κB pathway in human umbilical vein endothelial cells. Mol Cell Biochem 2012; 374:191-201. [PMID: 23229233 DOI: 10.1007/s11010-012-1519-0] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2012] [Accepted: 11/07/2012] [Indexed: 02/06/2023]
Abstract
Advanced glycation end products (AGEs)-induced vasculopathy, including oxidative stress, inflammation and apoptosis responses, contributes to the high morbidity and mortality of coronary artery diseases in diabetic patients. The present study was conducted to evaluate the protective activity of liquiritin (Liq) on AGEs-induced endothelial dysfunction and explore its underlying mechanisms. After pretreatment with Liq, a significant reduction in AGEs-induced apoptosis, as well as reactive oxygen species generation and malondialdehyde level in human umbilical vein endothelial cells (HUVECs) were observed via acridine orange/ethidium bromide fluorescence staining test. Notably, Liq also significantly increased AGEs-reduced superoxide dismutase activity. Furthermore, the pretreatment with receptor for advanced glycation end products (RAGE)-antibody or Liq remarkably down-regulated TGF-beta1 and RAGE protein expressions and significantly blocked NF-κB activation which were proved by immunocytochemistry or immunofluorescence assays. These results indicated that Liq held potential for the protection on AGEs-induced endothelial dysfunction via RAGE/NF-κB pathway in HUVECs and might be a promising agent for the treatment of vasculopathy in diabetic patients.
Collapse
|
29
|
Zhang Y, Xiao G, Sun L, Wang Y, Wang Y, Wang Y. A new flavan-3-ol lactone and other constituents from Euonymus alatus with inhibitory activities on α-glucosidase and differentiation of 3T3-L1 cells. Nat Prod Res 2012; 27:1513-20. [DOI: 10.1080/14786419.2012.725400] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Yufeng Zhang
- a College of Pharmaceutical Sciences, Zhejiang University , Hangzhou 310027 , China
| | - Gongduan Xiao
- a College of Pharmaceutical Sciences, Zhejiang University , Hangzhou 310027 , China
| | - Lijuan Sun
- a College of Pharmaceutical Sciences, Zhejiang University , Hangzhou 310027 , China
| | - Yingchao Wang
- a College of Pharmaceutical Sciences, Zhejiang University , Hangzhou 310027 , China
| | - Yi Wang
- b Tianjin State Key Laboratory of Modern Chinese Medicine , Tianjin University of Traditional Chinese Medicine , Tianjin 300193 , P.R. China
| | - Yi Wang
- a College of Pharmaceutical Sciences, Zhejiang University , Hangzhou 310027 , China
| |
Collapse
|
30
|
Antioxidative flavonol glycosides from the flowers of Abelmouschus manihot. J Nat Med 2012; 67:78-85. [DOI: 10.1007/s11418-012-0651-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2012] [Accepted: 02/24/2012] [Indexed: 10/28/2022]
|
31
|
Interference of flavonoids with enzymatic assays for the determination of free fatty acid and triglyceride levels. Anal Bioanal Chem 2011; 402:1389-92. [PMID: 22119999 PMCID: PMC3249154 DOI: 10.1007/s00216-011-5563-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2011] [Revised: 11/04/2011] [Accepted: 11/07/2011] [Indexed: 12/29/2022]
Abstract
Flavonoids are bioactive food compounds with potential lipid-lowering effects. Commercially available enzymatic assays are widely used to determine free fatty acid (FFA) and triglyceride (TG) levels both in vivo in plasma or serum and in vitro in cell culture medium or cell lysate. However, we have observed that various flavonoids interfere with peroxidases used in these enzymatic assays, resulting in incorrect lower FFA and TG levels than actually present. Furthermore, addition of isorhamnetin or the major metabolite of the flavonoid quercetin in human and rat plasma, quercetin-3-O-glucuronide, to murine serum also resulted in a significant reduction of the detected TG levels, while a trend was seen for FFA levels. It is concluded that when applying these assays, vigilance is needed and alternative analytical methods, directly assessing FFA or TG levels, should be used for studying the biological effects of flavonoids on FFA and TG levels. Interference of different flavonoids spiked into cell culture medium on the FFA (A) and TG (B) levels, and interference of quercetin (Q) and its major metabolite, quercetin-3-O-glucuronide (Q3G), and isorhamnetin (I) spiked into murine serum on the FFA (C) and TG (D) levels, as measured by enzymatic assays. Flavonoids analysed are quercetin (Q), (+)-catechin (C), luteolin (L), genistein (G), naringenin (N), and kaempferol (K). Asterisk indicates a significant difference (p < 0.05) from the control (0 μM) ![]()
Collapse
|
32
|
Wang T, An Y, Zhao C, Han L, Boakye-Yiadom M, Wang W, Zhang Y. Regulation effects of Crataegus pinnatifida leaf on glucose and lipids metabolism. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2011; 59:4987-4994. [PMID: 21425878 DOI: 10.1021/jf1049062] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
The leaf of Crataegus pinnatifida (Rosaceae) is commonly consumed either raw or cooked to improve digestion and promote blood circulation in China. To investigate the regulation effects of it on glucose and lipid metabolism, the flavonoids fraction was prepared and analyzed by HPLC and LC-MS. In vivo, at doses of 250 and 500 mg/kg, the flavonoids fraction showed inhibitory effects on TG and glucose absorption, accelerating effects on gastrointestinal transit but no effect on gastric emptying. In vitro, treatment of 3T3-L1 preadipocytes with 30 μg/mL flavonoids fraction significantly suppressed the accumulation of TG and free fatty acid. It also suppressed the gene expressions of C/EBPα, PPARγ, SREBP 1c, aP2 and adiponectin but did not affect that of leptin. C. pinnatifida leaf may be useful for type 2 diabetics and hyperlipidemics as a foodstuff.
Collapse
Affiliation(s)
- Tao Wang
- Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Nankai District, Tianjin, China
| | | | | | | | | | | | | |
Collapse
|