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Zhu X, Shen X, Lin B, Fang J, Jin J, He Q. Liuwei Dihuang Pills Inhibit Podocyte Injury and Alleviate IgA Nephropathy by Directly Altering Mesangial Cell-Derived Exosome Function and Secretion. Front Pharmacol 2022; 13:889008. [PMID: 35899112 PMCID: PMC9309816 DOI: 10.3389/fphar.2022.889008] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Accepted: 06/16/2022] [Indexed: 11/29/2022] Open
Abstract
Background: Immunoglobulin A nephropathy (IgAN) is the most common glomerular disease worldwide. Its pathological features include IgA immune complex deposition, accompanied by mesangial cell proliferation and mesangial matrix expansion. This study was conducted to investigate the effects of Liuwei Dihuang pills (LWDHW) on IgAN in mice and human podocytes, as well as to determine their underlying mechanisms of action. Methods: For in vitro experiments, podocytes were exposed to the human mesangial cell culture medium supernatant of glomerular cells treated with aggregated IgA1 (aIgA1) and LWDHW-containing serum. Cell viability and the proportion of positive cells were evaluated using CCK-8 and flow apoptosis kits, respectively. The cells were collected for western blot analysis. Twenty-four mice with IgAN induced by oral bovine serum albumin administration combined with tail vein injection of staphylococcal enterotoxin B were randomly divided into four groups of six mice each: untreated model group, model + LWDHW group, model + rapamycin group, and model + LWDHW + rapamycin group. The normal control group contained six mice. The red blood cell count in the urine, urine protein, blood urea nitrogen, serum creatinine, and IgA deposition were determined, and TUNEL and western blotting were performed in the mouse kidney tissues. Results:In vitro experiments showed that LWDHW promoted autophagy by regulating the PI3K/Akt/mTOR signalling pathway and improved the damage to podocytes caused by the aIgA1-treated mesangial cell supernatant. This study demonstrates the effectiveness of LWDHW for treating IgAN. In the animal experiments, LWDHW significantly reduced the urine red blood cell count, serum creatinine and urea nitrogen contents, and 24 h urinary protein function and improved IgA deposition in the kidney tissues, glomerular volume, glomerular cell proliferation and polysaccharide deposition, and glomerular cell apoptosis. The pills also reversed the changes in the LC3II/I ratio and p62 content in the kidney tissues. The combination of LWDHW and rapamycin showed stronger inhibitory effects compared to those of LWDHW or rapamycin alone. Conclusion: LWDHW may improve regulation of the PI3K-Akt-mTOR pathway and inhibit autophagy in podocytes, as well as alleviate IgA nephropathy by directly altering mesangial cell exosomes.
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Affiliation(s)
- Xiaodong Zhu
- Bengbu Medical College, Bengbu, China
- Urology and Nephrology Center, Department of Nephrology, Zhejiang Provincial People’s Hospital (Affiliated People’s Hospital, Hangzhou Medical College), Hangzhou, China
| | - Xiaogang Shen
- Zhejiang Chinese Medical University, Hangzhou, China
| | - Bo Lin
- Urology and Nephrology Center, Department of Nephrology, Zhejiang Provincial People’s Hospital (Affiliated People’s Hospital, Hangzhou Medical College), Hangzhou, China
| | - Jiaxi Fang
- Urology and Nephrology Center, Department of Nephrology, Zhejiang Provincial People’s Hospital (Affiliated People’s Hospital, Hangzhou Medical College), Hangzhou, China
| | - Juan Jin
- Urology and Nephrology Center, Department of Nephrology, Zhejiang Provincial People’s Hospital (Affiliated People’s Hospital, Hangzhou Medical College), Hangzhou, China
- *Correspondence: Juan Jin, ; Qiang He,
| | - Qiang He
- Urology and Nephrology Center, Department of Nephrology, Zhejiang Provincial People’s Hospital (Affiliated People’s Hospital, Hangzhou Medical College), Hangzhou, China
- *Correspondence: Juan Jin, ; Qiang He,
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Liuwei Dihuang Pill Attenuates Diabetic Nephropathy by Inhibiting Renal Fibrosis via TGF-β/Smad2/3 Pathway. COMPUTATIONAL AND MATHEMATICAL METHODS IN MEDICINE 2022; 2022:5063636. [PMID: 35341010 PMCID: PMC8941499 DOI: 10.1155/2022/5063636] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/06/2022] [Revised: 02/19/2022] [Accepted: 03/02/2022] [Indexed: 12/13/2022]
Abstract
Among all the complications of diabetes, diabetic nephropathy is a significant factor causing the end-stage renal disease associated with high death rates. Current treatment fails to produce an ideal outcome. Thus, searching for a new preventive drug is urgently needed. Liuwei Dihuang pill (LDP), a popular ancient Chinese medicine (TCM) prescription, has been applied to treat DN-like syndromes according to TCM theory. Here, we had established an animal model with DN and LDP therapy was put into use to assess its therapeutic effect in vivo. Our data showed that oxidative stress and TGF-β/Smad2/3 pathway-induced renal fibrosis could be observed in the DN animal model. However, the treatment of LDP impeded the generation of ROS and attenuated renal fibrosis-related proteins in damaged kidneys through interference in the TGF-β/Smad3 pathway. Our results indicated that LDP attenuated oxidative stress, accompanied by preventing the production of renal fibrosis through inhibiting the TGF-β/Smad2/3 pathway.
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Liu X, Liu D, Shuai Y, Li H, Zhao H, Qu X, Chu S, Zhang X. Effects of HuoxueJiangtang decoction alone or in combination with metformin on renal function and renal cortical mRNA expression in diabetic nephropathy rats. PHARMACEUTICAL BIOLOGY 2020; 58:1123-1130. [PMID: 33191822 PMCID: PMC7671697 DOI: 10.1080/13880209.2020.1844242] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
CONTEXT HuoxueJiangtang decoction (ZY) is a traditional Chinese medicine for the treatment of diabetes. OBJECTIVE The protective effect of ZY on renal injury in diabetic nephropathy rats was investigated in this study. MATERIALS AND METHODS Fifty 4-week-old SPF Wistar male rats were selected to construct diabetic nephropathy model rats (DN) group by continuous high-fat feeding for 4 weeks, followed by a tail vein injection of 30 mg/kg streptozotocin for 1 week. The experimental rats were divided into six groups of 10 rats: normal (control), DN, DN + ZY, DN + metformin, DN + metformin + ZY, and DN + metformin + captopril (positive control) groups. Among the groups, 6.25 g/kg ZY, 250 mg/kg metformin, and 17.5 mg/kg captopril were given to the rats by gavage once a day for 16 weeks. Blood glucose, dietary behaviour, biochemical indicators, and gene expression changes were measured in each group. RESULTS Metformin + ZY treatment significantly lowered blood glucose, water intake, urine total protein, urine albumin, urine volume, serum triglyceride, and serum cholesterol levels in the DN group. The pathological changes of kidney tissue showed that the DN + metformin + ZY group had a protective effect on kidney tissue damage. And ZY and metformin + ZY treatments repaired the expression of genes in the DN group. DISCUSSION AND CONCLUSION The ZY and metformin combined treatment showed a clear therapeutic effect on kidney damage in DN. This study provides a potential mechanism for the treatment of diabetic nephropathy with ZY combined with metformin.
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Affiliation(s)
- Xuemei Liu
- Department of Endocrinology, Shenzhen Traditional Chinese Medicine Hospital, Shenzhen, Guangdong, China
| | - Deliang Liu
- Department of Endocrinology, Shenzhen Traditional Chinese Medicine Hospital, Shenzhen, Guangdong, China
| | - Youyou Shuai
- Department of Endocrinology, Shenzhen Traditional Chinese Medicine Hospital, Shenzhen, Guangdong, China
| | - Huilin Li
- Department of Endocrinology, Shenzhen Traditional Chinese Medicine Hospital, Shenzhen, Guangdong, China
- CONTACT Huilin Li Department of Endocrinology, Shenzhen Traditional Chinese Medicine Hospital, 1# Fuhua Road, Shenzhen, Futian District, 518033, China
| | - Hengxia Zhao
- Department of Endocrinology, Shenzhen Traditional Chinese Medicine Hospital, Shenzhen, Guangdong, China
| | - Xin Qu
- Department of Endocrinology, Shenzhen Traditional Chinese Medicine Hospital, Shenzhen, Guangdong, China
| | - Shufang Chu
- Department of Endocrinology, Shenzhen Traditional Chinese Medicine Hospital, Shenzhen, Guangdong, China
| | - Xuewen Zhang
- Institute of National Master of TCM, Shaanxi University of Chinese Medicine, Xianyang, Shaanxi, China
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Wu C, Wang N, Xu P, Wang X, Shou D, Zhu Y. Preparation and application of polyvinyl alcohol‐decorated cell membrane chromatography for screening anti‐osteoporosis components from Liuwei Dihuang decoction‐containing serum. J Sep Sci 2020; 43:2105-2114. [DOI: 10.1002/jssc.201901203] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Revised: 02/25/2020] [Accepted: 03/03/2020] [Indexed: 12/21/2022]
Affiliation(s)
- Can Wu
- Department of ChemistryZhejiang University Hangzhou Zhejiang P. R. China
| | - Nani Wang
- Department of MedicineZhejiang Academy of Traditional Chinese Medicine Hangzhou Zhejiang P. R. China
| | - Pingcui Xu
- Department of MedicineZhejiang Academy of Traditional Chinese Medicine Hangzhou Zhejiang P. R. China
| | - Xuping Wang
- Department of MedicineZhejiang Academy of Traditional Chinese Medicine Hangzhou Zhejiang P. R. China
| | - Dan Shou
- Department of MedicineZhejiang Academy of Traditional Chinese Medicine Hangzhou Zhejiang P. R. China
| | - Yan Zhu
- Department of ChemistryZhejiang University Hangzhou Zhejiang P. R. China
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Zheng W, Wang G, Zhang Z, Wang Z, Ma K. Research progress on classical traditional Chinese medicine formula Liuwei Dihuang pills in the treatment of type 2 diabetes. Biomed Pharmacother 2019; 121:109564. [PMID: 31683180 DOI: 10.1016/j.biopha.2019.109564] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Revised: 09/24/2019] [Accepted: 10/20/2019] [Indexed: 01/02/2023] Open
Abstract
In traditional Chinese medicine (TCM), type 2 diabetes mellitus (T2DM) is regarded as Xiao Ke disease. Liuwei Dihuang pills (LWP), a classical TCM formula, with the function of nourishing kidney yin, has been used for treating Xiao Ke disease in clinic. In this review, we systematically highlighted recent evidence on LWP and T2DM data from clinical and animal studies, summarized the clinical application, pharmacological mechanism and the active compounds of LWP for the treatment of T2DM. This systematic review will provide an insightful understanding of TCM formulas, pharmacological mechanisms, medicinal-disease interactions, and will lay a foundation for the development of new drug therapy for T2DM.
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Affiliation(s)
- Wenjie Zheng
- Institute for Literature and Culture of Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan 250355, PR China
| | - Gaofeng Wang
- Department of Traditional Chinese Medicine Internal Medicine, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinn 25001, PR China
| | - Zhe Zhang
- Institute for Literature and Culture of Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan 250355, PR China
| | - Zhenguo Wang
- Institute for Literature and Culture of Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan 250355, PR China.
| | - Ke Ma
- Institute for Literature and Culture of Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan 250355, PR China; Shandong Co-Innovation Center of Classic TCM formula, Shandong University of Traditional Chinese Medicine, Jinan 250355, PR China.
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Characteristics of the traditional Liu-Wei-Di-Huang prescription reassessed in modern pharmacology. Chin J Nat Med 2019; 17:103-121. [DOI: 10.1016/s1875-5364(19)30013-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Indexed: 12/25/2022]
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Xu ZJ, Shu S, Li ZJ, Liu YM, Zhang RY, Zhang Y. Liuwei Dihuang pill treats diabetic nephropathy in rats by inhibiting of TGF-β/SMADS, MAPK, and NF-kB and upregulating expression of cytoglobin in renal tissues. Medicine (Baltimore) 2017; 96:e5879. [PMID: 28099346 PMCID: PMC5279091 DOI: 10.1097/md.0000000000005879] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Liuwei Dihuang pill (LDP) was assessed for its effects on renal deficiency.90 STZ induced DN rats were divided into groups (n = 22) without treatment (STZ) and LDP treated (STZ-L) (n = 23), Zhenwu decoction treated (STZ-Z) (n = 22), and valsartan treated (STZ-V) (n = 23) groups, with 16 normal control rats. Total urine protein (TP), blood urea nitrogen (BUN), and serum creatinine (Cr) were measured. Superoxide dismutase (SOD), nitric oxide synthase (NOS), and malondialdehyde (MDA) concentrations as well as expression/phosphorylation of SMAD3, SMAD2, and α-SMA, TGF-β, RI /II, P38, ERK, and NF-kB in renal tissues were determined. In vitro experiments analyzed the effect of enhanced TGF-β containing rat serums of the STZ groups on mesangial cells with and without transient transfection with a cytoglobin-containing plasmid.LDP treatment reduced the kidney coefficient, serum creatinine, blood urea nitrogen, and urine protein and prevented pathological changes. Expression of SOD and NOS in kidney tissue was increased but MDA expression reduced. LDP modulated multiple pathways, and its administration inhibited the phosphorylation of SMADS, ERK, p38, and the expression of NF-kB, α-SMA, and TGF-β RI/II, and upregulated the expression of cytoglobin. In vitro studies revealed that overexpression of cytoglobin suppressed phosphorylation of Smad2, ERK, and p38 induced by TGF-β and expression of NF-kB, α-SMA, and TGF-β RI.LDP prevented renal fibrosis and protected glomerular mesangial cells by upregulation of cytoglobin and suppression of multiple pathways involving TGF-β/SMADS, MAPK, NF-kB signaling.
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Affiliation(s)
- Zhong Ju Xu
- School of Basic Medical Sciences, Shanghai University of Traditional Chinese Medicine
- Department of Traditional Chinese Medicine, Shanghai Punan Hospital of Pudong New District
| | - Shi Shu
- Department of Traditional Chinese Medicine, Shanghai Punan Hospital of Pudong New District
| | - Zhi Jie Li
- Science and Technology Center, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Yu Min Liu
- School of Basic Medical Sciences, Shanghai University of Traditional Chinese Medicine
| | - Rui Yi Zhang
- School of Basic Medical Sciences, Shanghai University of Traditional Chinese Medicine
| | - Yue Zhang
- School of Basic Medical Sciences, Shanghai University of Traditional Chinese Medicine
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Liu JY, Chen XX, Tang SCW, Sze SCW, Feng YB, Lee KF, Zhang KYB. Chinese medicines in the treatment of experimental diabetic nephropathy. Chin Med 2016; 11:6. [PMID: 26913057 PMCID: PMC4765093 DOI: 10.1186/s13020-016-0075-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2014] [Accepted: 01/26/2016] [Indexed: 12/22/2022] Open
Abstract
Diabetic nephropathy (DN) is a severe micro vascular complication accompanying diabetes mellitus that affects millions of people worldwide. End-stage renal disease occurs in nearly half of all DN patients, resulting in large medical costs and lost productivity. The course of DN progression is complicated, and effective and safe therapeutic strategies are desired. While the complex nature of DN renders medicines with a single therapeutic target less efficacious, Chinese medicine, with its holistic view targeting the whole system of the patient, has exhibited efficacy for DN management. This review aims to describe the experimental evidence for Chinese medicines in DN management, with an emphasis on the underlying mechanisms, and to discuss the combined use of herbs and drugs in DN treatment.
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Affiliation(s)
- Jing-Yi Liu
- School of Chinese Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, 10 Sassoon Road, Hong Kong, People's Republic of China
| | - Xiao-Xin Chen
- School of Chinese Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, 10 Sassoon Road, Hong Kong, People's Republic of China
| | - Sydney Chi-Wai Tang
- Department of Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, 10 Sassoon Road, Hong Kong, People's Republic of China
| | - Stephen Cho-Wing Sze
- School of Chinese Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, 10 Sassoon Road, Hong Kong, People's Republic of China
| | - Yi-Bin Feng
- School of Chinese Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, 10 Sassoon Road, Hong Kong, People's Republic of China
| | - Kai-Fai Lee
- Obstetrics and Gynaecology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, 10 Sassoon Road, Hong Kong, People's Republic of China
| | - Kalin Yan-Bo Zhang
- School of Chinese Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, 10 Sassoon Road, Hong Kong, People's Republic of China
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Sun GD, Li CY, Cui WP, Guo QY, Dong CQ, Zou HB, Liu SJ, Dong WP, Miao LN. Review of Herbal Traditional Chinese Medicine for the Treatment of Diabetic Nephropathy. J Diabetes Res 2016; 2016:5749857. [PMID: 26649322 PMCID: PMC4662991 DOI: 10.1155/2016/5749857] [Citation(s) in RCA: 73] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/28/2015] [Accepted: 07/22/2015] [Indexed: 02/07/2023] Open
Abstract
Diabetic nephropathy (DN) is the most serious chronic complications of diabetes; 20-40% of diabetic patients develop into end stage renal disease (ESRD). However, exact pathogenesis of DN is not fully clear and we have great difficulties in curing DN; poor treatment of DN led to high chances of mortality worldwide. A lot of western medicines such as ACEI and ARB have been demonstrated to protect renal function of DN but are not enough to delay or retard the progression of DN; therefore, exploring exact and feasible drug is current research hotspot in medicine. Traditional Chinese medicine (TCM) has been widely used to treat and control diabetes and its complications such as DN in a lot of scientific researches, which will give insights into the mechanism of DN, but they are not enough to reveal all the details. In this paper, we summarize the applications of herbal TCM preparations, single herbal TCM, and/or monomers from herbal TCM in the treatment of DN in the recent 10 years, depicting the renal protective effects and the corresponding mechanism, through which we shed light on the renal protective roles of TCM in DN with a particular focus on the molecular basis of the effect and provide a beneficial supplement to the drug therapy for DN.
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Affiliation(s)
- Guang-dong Sun
- Department of Nephrology, Second Hospital of Jilin University, Changchun 130041, China
- *Guang-dong Sun: and
| | - Chao-yuan Li
- Department of Nephrology, Second Hospital of Jilin University, Changchun 130041, China
| | - Wen-peng Cui
- Department of Nephrology, Second Hospital of Jilin University, Changchun 130041, China
| | - Qiao-yan Guo
- Department of Nephrology, Second Hospital of Jilin University, Changchun 130041, China
| | - Chang-qing Dong
- Department of Nephrology, Second Hospital of Jilin University, Changchun 130041, China
| | - Hong-bin Zou
- Department of Nephrology, Second Hospital of Jilin University, Changchun 130041, China
| | - Shu-jun Liu
- Department of Nephrology, Second Hospital of Jilin University, Changchun 130041, China
| | - Wen-peng Dong
- Department of Nephrology, Second Hospital of Jilin University, Changchun 130041, China
| | - Li-ning Miao
- Department of Nephrology, Second Hospital of Jilin University, Changchun 130041, China
- *Li-ning Miao:
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Wang P, Wang Q, Yang B, Zhao S, Kuang H. The Progress of Metabolomics Study in Traditional Chinese Medicine Research. THE AMERICAN JOURNAL OF CHINESE MEDICINE 2015; 43:1281-310. [DOI: 10.1142/s0192415x15500731] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Traditional Chinese medicine (TCM) has played important roles in health protection and disease treatment for thousands of years in China and has gained the gradual acceptance of the international community. However, many intricate issues, which cannot be explained by traditional methods, still remain, thus, new ideas and technologies are needed. As an emerging system biology technology, the holistic view adopted by metabolomics is similar to that of TCM, which allows us to investigate TCM with complicated conditions and multiple factors in depth. In this paper, we tried to give a timely and comprehensive update about the methodology progression of metabolomics, as well as its applications, in different fields of TCM studies including quality control, processing, safety and efficacy evaluation. The herbs investigated by metabolomics were selected for detailed examination, including Anemarrhena asphodeloides Bunge, Atractylodes macrocephala Kidd, Pinellia ternate, etc.; furthermore, some valuable results have been obtained and summarized. In conclusion, although the study of metabolomics is at the early phase and requires further scrutiny and validation, it still provides bright prospects to dissect the synergistic action of multiple components from TCM. Overall, with the further development of analytical techniques, especially multi-analysis techniques, we expect that metabolomics will greatly promote TCM research and the establishment of international standards, which is beneficial to TCM modernization.
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Affiliation(s)
- Pengcheng Wang
- Key Laboratory of Chinese Materia Medica (Ministry of Education), Heilongjiang University of Chinese Medicine, Harbin, P.R. China
| | - Qiuhong Wang
- Key Laboratory of Chinese Materia Medica (Ministry of Education), Heilongjiang University of Chinese Medicine, Harbin, P.R. China
| | - Bingyou Yang
- Key Laboratory of Chinese Materia Medica (Ministry of Education), Heilongjiang University of Chinese Medicine, Harbin, P.R. China
| | - Shan Zhao
- Key Laboratory of Chinese Materia Medica (Ministry of Education), Heilongjiang University of Chinese Medicine, Harbin, P.R. China
| | - Haixue Kuang
- Key Laboratory of Chinese Materia Medica (Ministry of Education), Heilongjiang University of Chinese Medicine, Harbin, P.R. China
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Qiu Y, Huang J, Jiang X, Chen Y, Liu Y, Zeng R, Shehla N, Liu Q, Liao D, Guo D, Liang Y, Wang W. Quantitative and qualitative determination of LiuweiDihuang preparations by ultra high performance liquid chromatography in dual-wavelength fingerprinting mode and random forest. J Sep Sci 2015; 38:3720-6. [DOI: 10.1002/jssc.201500560] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2015] [Revised: 08/07/2015] [Accepted: 08/20/2015] [Indexed: 11/11/2022]
Affiliation(s)
- Yixing Qiu
- TCM and Ethnomedicine Innovation & Development Laboratory, Sino-Luxemburg TCM Research Center, School of Pharmacy; Hunan University of Chinese Medicine; Changsha P.R. China
- Division of Stem Cell Regulation and Application with Chinese Materia Medica; Hunan University of Chinese Medicine; Changsha P.R. China
| | - Jianhua Huang
- TCM and Ethnomedicine Innovation & Development Laboratory, Sino-Luxemburg TCM Research Center, School of Pharmacy; Hunan University of Chinese Medicine; Changsha P.R. China
- Research Center of Modernization of Traditional Chinese Medicines; Central South University; Changsha P.R. China
| | - Xingming Jiang
- TCM and Ethnomedicine Innovation & Development Laboratory, Sino-Luxemburg TCM Research Center, School of Pharmacy; Hunan University of Chinese Medicine; Changsha P.R. China
| | - Yang Chen
- TCM and Ethnomedicine Innovation & Development Laboratory, Sino-Luxemburg TCM Research Center, School of Pharmacy; Hunan University of Chinese Medicine; Changsha P.R. China
| | - Yang Liu
- TCM and Ethnomedicine Innovation & Development Laboratory, Sino-Luxemburg TCM Research Center, School of Pharmacy; Hunan University of Chinese Medicine; Changsha P.R. China
| | - Rong Zeng
- TCM and Ethnomedicine Innovation & Development Laboratory, Sino-Luxemburg TCM Research Center, School of Pharmacy; Hunan University of Chinese Medicine; Changsha P.R. China
| | - Nuzhat Shehla
- TCM and Ethnomedicine Innovation & Development Laboratory, Sino-Luxemburg TCM Research Center, School of Pharmacy; Hunan University of Chinese Medicine; Changsha P.R. China
| | - Qiang Liu
- TCM and Ethnomedicine Innovation & Development Laboratory, Sino-Luxemburg TCM Research Center, School of Pharmacy; Hunan University of Chinese Medicine; Changsha P.R. China
| | - Duanfang Liao
- Division of Stem Cell Regulation and Application with Chinese Materia Medica; Hunan University of Chinese Medicine; Changsha P.R. China
| | - Dean Guo
- TCM and Ethnomedicine Innovation & Development Laboratory, Sino-Luxemburg TCM Research Center, School of Pharmacy; Hunan University of Chinese Medicine; Changsha P.R. China
- Shanghai Research Center for Modernization of Traditional Chinese Medicine, National Engineering Laboratory for TCM Standardization Technology, Shanghai Institute of Materia Medica; Chinese Academy of Science; Shanghai P.R. China
| | - Yizeng Liang
- Research Center of Modernization of Traditional Chinese Medicines; Central South University; Changsha P.R. China
| | - Wei Wang
- TCM and Ethnomedicine Innovation & Development Laboratory, Sino-Luxemburg TCM Research Center, School of Pharmacy; Hunan University of Chinese Medicine; Changsha P.R. China
- Division of Stem Cell Regulation and Application with Chinese Materia Medica; Hunan University of Chinese Medicine; Changsha P.R. China
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Pang B, Zhou Q, Zhao TY, He LS, Guo J, Chen HD, Zhao LH, Tong XL. Innovative Thoughts on Treating Diabetes from the Perspective of Traditional Chinese Medicine. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE : ECAM 2015; 2015:905432. [PMID: 26504482 PMCID: PMC4609429 DOI: 10.1155/2015/905432] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/24/2014] [Accepted: 04/10/2015] [Indexed: 12/13/2022]
Abstract
The rapidly increasing incidence of diabetes mellitus (DM) is becoming a major public health issue. As one of the important parts in complementary and alternative therapies, traditional Chinese medicine (TCM) is promising in treating DM. In this review, we summarize new thoughts on treating DM that aim to improve the clinical efficacy of TCM from the perspectives of principle, methods, formula, herbs, and doses. Our approach is as follows: principle: we use a combination of symptoms, syndromes, and diseases as a new mode for treating diabetes; methods: emphasizing heat-clearing in the early and middle stage of T2DM and invigorating blood circulation throughout the whole process of T2DM are two innovative methods to treat T2DM; formulas and herbs: choosing formulas and herbs based on the combination of TCM theory and current medicine. We will emphasize four strategies to help doctors choose formulas and herbs, including treatment based on syndrome differentiation, choosing herbs of bitter and sour flavors to counteract sweet flavor, choosing formulas and herbs aimed at main symptoms, and using modern pharmacological achievements in clinical practice; dose: reasonable drug dose plays an important role in the treatment of DM and a close relationship exists between dose and clinical efficacy.
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Affiliation(s)
- Bing Pang
- Department of Endocrinology, Guang'anmen Hospital of China Academy of Chinese Medical Sciences, Beijing 100054, China
| | - Qiang Zhou
- Department of Digestion, Beijing Hospital of Traditional Chinese Medicine, Capital University of Medicine Sciences, Beijing 100010, China
| | - Tian-Yu Zhao
- Department of Endocrinology, Guang'anmen Hospital of China Academy of Chinese Medical Sciences, Beijing 100054, China
| | - Li-Sha He
- Department of Endocrinology, Guang'anmen Hospital of China Academy of Chinese Medical Sciences, Beijing 100054, China
| | - Jing Guo
- Department of Endocrinology, Guang'anmen Hospital of China Academy of Chinese Medical Sciences, Beijing 100054, China
| | - Hong-Dong Chen
- Department of Endocrinology, Guang'anmen Hospital of China Academy of Chinese Medical Sciences, Beijing 100054, China
| | - Lin-Hua Zhao
- Laboratory of Molecular Biology, Guang'anmen Hospital of China Academy of Chinese Medical Sciences, Beijing 100054, China
| | - Xiao-Lin Tong
- Department of Endocrinology, Guang'anmen Hospital of China Academy of Chinese Medical Sciences, Beijing 100054, China
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Application of metabonomic strategy to discover an unreported active ingredient in LiuWeiDiHuang pills suppressing beta-glucuronidase. Anal Bioanal Chem 2014; 407:609-14. [DOI: 10.1007/s00216-014-8253-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2014] [Revised: 09/28/2014] [Accepted: 10/08/2014] [Indexed: 12/31/2022]
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Kim JH, Shin HK, Seo CS. Optimization of the extraction process for the seven bioactive compounds in Yukmijihwang-tang, an herbal formula, using response surface methodology. Pharmacogn Mag 2014; 10:S606-13. [PMID: 25298681 PMCID: PMC4189279 DOI: 10.4103/0973-1296.139798] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2013] [Revised: 01/14/2014] [Accepted: 08/30/2014] [Indexed: 12/02/2022] Open
Abstract
Background: Yukmijihwang-tang (YJT) contains multiple bioactive compounds. Heat-reflux extraction was employed and optimized for the extraction of the bioactive compounds in YJT. Objective: The determination of optimal conditions with maximum yields of bioactive compounds, gallic acid, 5-hydroxymethylfurfural, morroniside, loganin, paeoniflorin, benzoic acid and paeonol, in YJT. Materials and Methods: The extraction ratio (ratio of water to herbal formula), extraction time and extraction number were set as individual values and the yields of the seven compounds were the response values that were optimized with a Box–Behnken design. Results: The optimal conditions obtained from response surface methodology (RSM) were 1:11.99 for the extraction ratio, 94.53 min for the extraction time and 2.21 for the extraction number. Under the optimal conditions, the response value of the experiment closely agreed with the predicted response value. Conclusions: The result suggests that RSM is successfully applied for optimizing the extraction of the marker compounds in YJT.
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Affiliation(s)
- Jung-Hoon Kim
- Herbal Medicine Formulation Research Group, Herbal Medicine Research Division, Korea Institute of Oriental Medicine, Daejeon 305-811, Republic of Korea
| | - Hyeun-Kyoo Shin
- Herbal Medicine Formulation Research Group, Herbal Medicine Research Division, Korea Institute of Oriental Medicine, Daejeon 305-811, Republic of Korea
| | - Chang-Seob Seo
- Herbal Medicine Formulation Research Group, Herbal Medicine Research Division, Korea Institute of Oriental Medicine, Daejeon 305-811, Republic of Korea
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Sun M, Huang L, Zhu J, Bu W, Sun J, Fang Z. Screening nephroprotective compounds from cortex Moutan by mesangial cell extraction and UPLC. Arch Pharm Res 2014; 38:1044-53. [DOI: 10.1007/s12272-014-0469-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2014] [Accepted: 08/14/2014] [Indexed: 12/30/2022]
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Sargin AK, Can B, Turan B. Comparative investigation of kidney mesangial cells from increased oxidative stress-induced diabetic rats by using different microscopy techniques. Mol Cell Biochem 2013; 390:41-9. [PMID: 24374793 DOI: 10.1007/s11010-013-1953-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2013] [Accepted: 12/19/2013] [Indexed: 11/30/2022]
Abstract
High glucose and increased oxidative stress levels are the known important mediators of diabetic nephropathy. However, the effects of these mediators on tissue damage basically due to extracellular matrix expansion in mesangial cells have yet to be fully examined within the context of early stage diabetic nephropathy. In this study, we attempted to characterize changes in mesangial cells of streptozotocin-induced diabetic rats with a comparative investigation of kidney tissue by using different microscopy techniques. The serum levels of urea and creatinine of diabetic rats, as biomarkers of kidney degeneration, decreased significantly compared to those of age-matched controls. In diabetic rats, there are increased malondialdehyde and oxidized-glutathione levels as well as reduced-glutathione and glutathione-peroxidase activity levels in renal tissue compared to those of the controls. By using light and electron microscopies, we showed that there were marked thickening in Bowman's membrane and glomerular capillary wall, increased amount of extracellular matrix often occupying Bowman's space, degenerations in tubules, an increased number of mesangial cells in the network of glomerular capillary walls, and increased amount of lipid accumulation in proximal tubules in the renal tissue of diabetic rats. Our confocal microscopy data confirmed also the presence of irregularity and widened in glomerular capillaries, their attachment to the Bowman's capsule, degenerated heterochromatin, thickening in foci of glomerular basement membrane, and marked increase in mesangial cells. These results suggest that a detailed structural investigation of kidney tissue provides further information on the important role of mesangial cells in pathogenesis of diabetic nephropathy.
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Affiliation(s)
- Ayse Kose Sargin
- Department of Histology-Embriology, Faculty of Medicine, Ankara University, Ankara, Turkey
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Hsu YH, Chen TH, Wu MY, Lin YF, Chen WL, Cheng TH, Chen CH. Protective effects of Zhibai Dihuang Wan on renal tubular cells affected with gentamicin-induced apoptosis. JOURNAL OF ETHNOPHARMACOLOGY 2013; 151:635-642. [PMID: 24269250 DOI: 10.1016/j.jep.2013.11.031] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2013] [Revised: 11/09/2013] [Accepted: 11/13/2013] [Indexed: 06/02/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Zhibai Dihuang Wan (ZDW) is an ancient traditional Chinese medicine composed of eight herbal ingredients and has been used to treat chronic kidney inflammation and diabetes for thousands of years. Nonetheless, the influence of ZDW on acute kidney injury is still unknown. We intended to identify the influence of ZDW on cell growth and gentamicin-induced apoptotic injury in renal tubular cells. MATERIALS AND METHODS We extracted ZDW with artificial intestinal fluid and treated rat renal tubular cells (NRK-52E) with various concentrations of the ZDW extraction. Cell proliferation and gentamicin-induced apoptosis of NRK-52E cells were evaluated using real-time proliferation monitoring and annexin V staining, respectively. Western blotting was used to evaluate the levels of Bcl-2 and caspase-3 expression. The effect of ZDW on gentamicin-induced kidney injury was also monitored in mice using the terminal deoxynucleotidyl transferase-mediated biotinylated UTP nick end labeling (TUNEL) assay, and the measurement of serum creatinine and blood urea nitrogen. RESULTS We found that 30 μg/ml of ZDW promoted cell proliferation of the rat renal tubular cells. ZDW also expressed a dose-dependent protective effect against gentamicin-induced apoptosis in the cells. Pretreatment with 3 μg/ml or 30 μg/ml of ZDW maximally increased Bcl-2 and decreased cleaved caspase-3 in the gentamicin-treated NRK-52E cells. Among the herbal ingredients of ZDW, only Phellodendron amurense Rupr., bark (Cortex Phellodendri), and Anemarrhena asphodeloides Bunge, rhizome inhibited both the gentamicin-induced Bcl-2 decrease and cleaved caspase-3 increase. Phellodendron amurense Rupr., bark and Anemarrhena asphodeloides Bunge, rhizome also inhibited gentamicin-induced apoptosis at particular concentrations; however, these two ingredients were less effective than ZDW. In the mouse model of gentamicin-induced nephropathy, the ZDW treatment significantly reduced apoptotic cells in the renal cortex and improved renal function. CONCLUSIONS Our results suggest that ZDW at adequate doses attenuates gentamicin-induced apoptotic injury in renal tubular cells and also protects kidneys from gentamicin-induced injury in mice.
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Affiliation(s)
- Yung-Ho Hsu
- Department of Internal Medicine, Shuang-Ho Hospital, Taipei Medical University, Taipei, Taiwan, ROC
| | - Tso-Hsiao Chen
- Department of Internal Medicine, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan, ROC
| | - Mei-Yi Wu
- Department of Internal Medicine, Shuang-Ho Hospital, Taipei Medical University, Taipei, Taiwan, ROC
| | - Yuh-Feng Lin
- Department of Internal Medicine, Shuang-Ho Hospital, Taipei Medical University, Taipei, Taiwan, ROC; National Defense Medical Center, Taipei, Taiwan, ROC
| | - Wen-Liang Chen
- Department of Biological Science and Technology, National Chiao Tung University, Hsinchu, Taiwan, ROC
| | - Tzu-Hurng Cheng
- Department of Biological Science and Technology, College of Life Sciences, China Medical University, Taichung, Taiwan, ROC
| | - Cheng-Hsien Chen
- Department of Internal Medicine, Shuang-Ho Hospital, Taipei Medical University, Taipei, Taiwan, ROC; Department of Internal Medicine, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan, ROC; National Defense Medical Center, Taipei, Taiwan, ROC.
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Liu JP, Feng L, Zhang MH, Ma DY, Wang SY, Gu J, Fu Q, Qu R, Ma SP. Neuroprotective effect of Liuwei Dihuang decoction on cognition deficits of diabetic encephalopathy in streptozotocin-induced diabetic rat. JOURNAL OF ETHNOPHARMACOLOGY 2013; 150:371-81. [PMID: 24041458 DOI: 10.1016/j.jep.2013.09.003] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2013] [Revised: 09/02/2013] [Accepted: 09/05/2013] [Indexed: 05/22/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Liuwei Dihuang decoction (LWDHD) is a well-known prescription of traditional Chinese medicine (TCM) and consists of six crude drugs including Rehmannia glutinosa Libosch. (family: Scrophulariaceae), Cornus officinalis Sieb. (family: Cornaceae), Dioscorea oppositifolia L. (family: Dioscoreaceae), Paoenia ostii (family: Paeoniaceae), Alisma orientale (G. Samuelsson) Juz (family: Alismataceae) and Poria cocos (Schw.) Wolf (family: Polyporaceae). It has been used for the treatment of "Kidney-Yin" deficiency syndrome in clinic in China for a long time. Recent studies found that LWDHD had a potential benefit for the treatment of diabetic complications. The aim of the present study is to investigate the neuroprotective effect of LWDHD on memory and cognition deficits in streptozotocin (STZ)-induced diabetic encephalopathy (DE) rats. MATERIALS AND METHODS Adult male Sprague Dawley (SD) rats were fed with high-glucose-fat diet for 50 days and then received an intraperitoneal injection of STZ (40 mg/kg) to induce DE model. Morris water maze test was used to evaluate the memory and cognition capability of DE rats. Choline acetyltransferase (ChAT), acetylcholinesterase (AChE), Na(+)-K(+)-ATP enzyme, iNOS and GSH kits were used to determine their activities or content in hippocampus. TUNEL staining, immunohistochemistry and Congo red staining were conducted to evaluate the apoptosis, caspase-3 protein expression, insulin-like growth factors 1 (IGF-1) and brain derived neurophic factor (BDNF) expressions, as well as Aβ deposition. RESULTS The treatment with LWDHD (1 and 2g/kg, p.o., once daily, 30 days) could significantly reduce the escape latency time and path length, and obviously enhance the spent time in the target quadrant and platform crossings in Morris water maze test compared with model group (P<0.05, P<0.01). LWDHD could also significantly decrease the level of fasting blood glucose, increase Na(+)-K(+)-ATP enzyme and ChAT activities, enhance remarkedly GSH level while decrease significantly AChE and iNOS activities in hippocampus (P<0.05, P<0.01). Furthermore, TUNEL staining, Congo red staining and immunohistochemistry showed that LWDHD significantly improved the expressions of IGF-1 and BDNF, attenuated the neural apoptosis, overexpression of caspase-3 and Aβ deposition in the hippocampus and cerebral cortex of STZ-induced DE rats (P<0.01). CONCLUSION Our findings suggested that LWDHD had a neuroprotective effect on DE rats. LWDHD may be of benefit in the treatment of DE.
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Affiliation(s)
- Ji-ping Liu
- Department of Pharmacology of Chinese Materia Medica, China Pharmaceutical University, Jiangsu, Nanjing 210009, PR China; Department of Pharmacology, Shaanxi University of Chinese Medicine, Xianyang 712046, PR China
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Zhao L, Gao H, Zhao Y, Lin D. Metabonomic analysis of the therapeutic effect of Zhibai Dihuang Pill in treatment of streptozotocin-induced diabetic nephropathy. JOURNAL OF ETHNOPHARMACOLOGY 2012; 142:647-656. [PMID: 22687255 DOI: 10.1016/j.jep.2012.05.031] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2012] [Revised: 05/15/2012] [Accepted: 05/16/2012] [Indexed: 06/01/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Zhibai Dihuang Pill (ZDP) is one of ancient traditional Chinese medicines (TCMs), which is usually used for the treatment of kidney deficiency for thousands of years in China. AIM OF THE STUDY Traditional Chinese medicines (TCMs) usually operate in vivo through multi-components, multi-ways and multi-targets. However, the molecular mechanisms of TCMs remain unclear. In the present work, nuclear magnetic resonance (NMR)-based metabonomic analysis was used to evaluate the therapeutic effect of Zhibai Dihuang Pill (ZDP) on diabetic nephropathy (DN) rats induced by streptozotocin and to address the underlying molecular mechanism. MATERIALS AND METHODS Male rats were divided into three groups: control, DN and ZDP-treated DN (ZDP-DN), respectively. Based on (1)H NMR spectra of sera, urine and kidney extracts from the rats, principle component analysis (PCA) was performed to identify different metabolic profiles. Kidney portions and serum and urine samples were also subjected to histopathological or biochemical examination. RESULTS PCA scores plots demonstrate that the cluster of DN rats is separated from that of control rats, while some of ZDP-DN rats are located close to control rats, indicating that metabolic profiles of these ZDP-DN rats are restored toward those of control rats. Our results illustrate that ZDP treatment could lower the levels of lipids and 3-hydrobutyrate, and raise the level of lactate in sera of DN rats. Moreover, ZDP treatment could also reduce the levels of glucose, 3-hydrobutyrate and lactate, enhance the level of betaine in kidney tissues. CONCLUSION Our study indicates that ZDP treatment can ameliorate DN symptoms by intervening in some dominating metabolic pathways, such as inhibiting glucose and lipid metabolism, enhancing methylamine metabolism. Our work may be of benefit to both evaluation of the therapeutic effect of TCM and elucidation of the underlying molecular mechanism.
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Affiliation(s)
- Liangcai Zhao
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
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Lin MH, Liu HK, Huang WJ, Huang CC, Wu TH, Hsu FL. Evaluation of the potential hypoglycemic and Beta-cell protective constituents isolated from Corni fructus to tackle insulin-dependent diabetes mellitus. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2011; 59:7743-51. [PMID: 21682333 DOI: 10.1021/jf201189r] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Corni fructus is the fruit of Cornus officinalis Sieb. et Zucc. and has attracted much interest due to its traditional applications and active fraction that reportedly possesses antidiabetic effects. In this study, we isolated 12 compounds from Corni fructus including three flavonoids, two iridoid glycosides, three phenolic compounds, and two triterpenoids, together with cornuside (11) and 2-butoxybutanedioic acid (12). Chemical structures were identified by (1)H, (13)C NMR, DEPT, COSY, HSQC, and HMBC spectral analyses. Furthermore, the glucose uptake efficiency, messenger (m)RNA expression of phosphoenolpyruvate carboxykinase (PEPCK), and prevention of cytokine-mediated cytotoxicity in the presence of test agents were evaluated. While CH and CB significantly increased glucose uptake from muscle, compounds 3 and 8, each at 50 μM, significantly suppressed PEPCK mRNA expression. Finally, compound 5, at 50 and 100 μM, effectively attenuated β-cell death. In conclusion, those compounds could contribute to the antihyperglycemic and β-cell-protective actions of Corni fructus against diabetes mellitus.
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Affiliation(s)
- Mei-Hsiang Lin
- School of Pharmacy, Taipei Medical University, Taipei 11031, Taiwan, Republic of China
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Qi MY, Liu HR, Dai DZ, Li N, Dai Y. Total triterpene acids, active ingredients from Fructus Corni, attenuate diabetic cardiomyopathy by normalizing ET pathway and expression of FKBP12.6 and SERCA2a in streptozotocin-rats. J Pharm Pharmacol 2010. [DOI: 10.1211/jpp.60.12.0016] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Abstract
Total triterpene acids (TTAs) isolated from Cornus officinalis Sieb., one of the herbs contained in Liuwei Dihuang decoction, were aimed at alleviating diabetic cardiomyopathy. We hypothesized that the benefits of TTAs may result from suppressing the endothelin-reactive oxidative species (ET-ROS) pathway in the myocardium. Diabetes was produced by a single injection of streptozotocin (STZ, 60 mg kg−1, i.p.) in rats. Assessment of cardiac function, calcium handling proteins, endothelin-1 (ET-1) and redox system was conducted 8 weeks after STZ injection. Medication with TTAs (50 mg kg−1, i.g.) was installed in the last 4 weeks. The compromised cardiac function was characterized by depressed contractility (LVSP and LV+dp/dtmax) and relaxation (LVEDP and -LVdp/dtmin) in association with hyperglycaemia (30.2 ± 2.6 mmol L−1) in STZ-injected rats. Down-regulated expression of FKBP12.6 (calstabin 2), sarcoplasmic reticulum Ca2+-ATPase 2a (SERCA2a) and phospholamban (PLB) were also found. These changes occurred in connection with an increased ET-1, up-regulated mRNA of propreET-1 and endothelin converting enzyme (ECE), and a state of oxidant stress was found by increased malondialdehyde (MDA), decreased superoxide dismutase (SOD) and glutathione peroxidase (GSH-px) activity, and an enhanced activity and expression of inducible nitric oxide synthase (iNOS) in the diabetic myocardium. After 4 weeks of treatment with TTAs, these changes were alleviated dramatically despite a mild reduction in hyperglycaemia (26.9 ± 3.4 mmol L−1). In conclusion, TTAs, as active ingredients of Liuwei Dihuang decoction, alleviated diabetic cardiomyopathy by normalizing the abnormality of FKBP12.6 and SERCA2a and ET-ROS pathway in the myocardium rather than by hypoglycaemic activity.
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Affiliation(s)
- Min-You Qi
- Research Division of Pharmacology, China Pharmaceutical University, Nanjing, Jiangsu, 210009, China
- Department of Pharmacology, College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou, Zhejiang, 310014, China
| | - Hao-Ran Liu
- Research Division of Pharmacology, China Pharmaceutical University, Nanjing, Jiangsu, 210009, China
- Department of Pharmacy, College of Chemistry and Chemical Engineering, Hu'nan University, Changsha, Hu'nan, 410082, China
| | - De-Zai Dai
- Research Division of Pharmacology, China Pharmaceutical University, Nanjing, Jiangsu, 210009, China
| | - Na Li
- Research Division of Pharmacology, China Pharmaceutical University, Nanjing, Jiangsu, 210009, China
| | - Yin Dai
- Research Division of Pharmacology, China Pharmaceutical University, Nanjing, Jiangsu, 210009, China
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Retraction. J Pharm Pharmacol 2010; 61:685. [DOI: 10.1111/j.2042-7158.2009.tb00347.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Liu HR, Tang XY, Dai DZ, Dai Y. Ethanol extracts of Rehmannia complex (Di Huang) containing no Corni fructus improve early diabetic nephropathy by combining suppression on the ET-ROS axis with modulate hypoglycemic effect in rats. JOURNAL OF ETHNOPHARMACOLOGY 2008; 118:466-472. [PMID: 18585879 DOI: 10.1016/j.jep.2008.05.015] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2007] [Revised: 04/21/2008] [Accepted: 05/16/2008] [Indexed: 05/26/2023]
Abstract
AIM Liuwei Dihuang (Rehmannia complex, RC) decoction, a classic prescription of Traditional Chinese Medicine (TCM), has been used in treating diabetic nephropathy (DN). Among the 6 crude medicines which contains Corni fructus is recognized as the active fraction for its effectiveness. We aimed to investigate, first, if without Corni fructus a modified RC could be still effective, second, if the ethanol extracts could be better than that of water extract and third, the beneficial effect is mainly stemmed from suppressing the endothelin (ET-1) pathway associated with a moderate hypoglycemic effect. METHODS AND MATERIALS Diabetes for 8 weeks was induced by a single dose of streptozotocin (STZ, 65 mg/kg, i.p.) in rats and treated with RC extracts in either 95%, 70% ethanol or water separately during 5-8th week. The efficacy of extracts was compared with aminoguanidine (AMG). RESULTS An increase in albumin and creatinine in 24h urine, blood urea nitrogen (BUN) was found in STZ rats. Oxidative stress was found in renal cortex in association with upregulated plasma ET-1 and mRNA of ETA, decreased MMP 2,9 (matrix matelloproteinases) and increased hydroxyproline. CONCLUSIONS The RC without Corni fructus was very effective in alleviating DN and ethanol extracts provided greater effects against water extracts. The efficacy in alleviating DN is attributed to normalizing the activated ET system, oxidative stress and MMP 2,9 in combination with a moderate hypoglycemic activity.
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Affiliation(s)
- Hao-Ran Liu
- Research Division of Pharmacology, China Pharmaceutical University, Nanjing, China
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