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Sun S, Peng K, Yang B, Yang M, Jia X, Wang N, Zhang Q, Kong D, Du Y. The therapeutic effect of wine-processed Corni Fructus on chronic renal failure in rats through the interference with the LPS/IL-1-mediated inhibition of RXR function. J Ethnopharmacol 2024; 321:117511. [PMID: 38036016 DOI: 10.1016/j.jep.2023.117511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 11/23/2023] [Accepted: 11/24/2023] [Indexed: 12/02/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Corni Fructus, derived from the fruit of Cornus officinalis Sieb. et Zucc, is a widely utilized traditional Chinese medicine (TCM) with established efficacy in the treatment of diverse chronic kidney diseases. Crude Corni Fructus (CCF) and wine-processed Corni Fructus (WCF) are the main processed forms of Corni Fructus. Generally, TCM is often used after processing (paozhi). Despite the extensive use of processed TCM, the underlying mechanisms of processing for most TCMs have been unclear so far. AIM OF THE STUDY In this study, an integrated strategy combined renal metabolomics with proteomics was established and investigated the potential processing mechanisms of CCF or WCF on chronic renal failure (CRF) models. MATERIALS AND METHODS Firstly, the differences in biochemical parameters and pathological histology were compared to evaluate the effects of CCF and WCF on CRF model rats. Then, the tissue differential metabolites and proteins between CCF and WCF on CRF model rats were screened based on metabolomics and proteomics technology. Concurrently, a combined approach of metabolomics and proteomics was employed to investigate the underlying mechanisms associated with these marker metabolic products and proteins. RESULTS Compared to the MG group, there were 27 distinct metabolites and 143 different proteins observed in the CCF-treatment group, while the WCF-treatment group exhibited 24 distinct metabolites and 379 different proteins. Further, the integration interactions analysis of the protein and lipid metabolite revealed that both WCF and CCF improved tryptophan degradation and LPS/IL-1-mediated inhibition of RXR function. WCF inhibited RXR function more than CCF via the modulation of LPS/IL-1 in the CRF model. Experimental results were validated by qRT-PCR and western blotting. Notably, the gene expression amount and protein levels of FMO3 and CYP2E1 among 8 genes influenced by WCF were higher compared to CCF. CONCLUSION The results of this study provide a theoretical basis for further study of Corni Fructus with different processing techniques in CRF. The findings also offer guidance for investigating the mechanism of action of herbal medicines in diseases employing diverse processing techniques.
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Affiliation(s)
- Shilin Sun
- Department of Pharmaceutical Analysis, School of Pharmacy, Hebei Medical University, 361 East Zhongshan Road, Shijiazhuang, Hebei, 050017, PR China; Baoding Hospital of Beijing Children's Hospital, Capital Medical University, Hebei, 071000, PR China
| | - Kenan Peng
- Hebei General Hospital, Shijiazhuang, Hebei, 050051, PR China
| | - Bingkun Yang
- Department of Pharmaceutical Analysis, School of Pharmacy, Hebei Medical University, 361 East Zhongshan Road, Shijiazhuang, Hebei, 050017, PR China
| | - Mengxin Yang
- Department of Pharmaceutical Analysis, School of Pharmacy, Hebei Medical University, 361 East Zhongshan Road, Shijiazhuang, Hebei, 050017, PR China
| | - Xinming Jia
- Department of Pharmaceutical Analysis, School of Pharmacy, Hebei Medical University, 361 East Zhongshan Road, Shijiazhuang, Hebei, 050017, PR China
| | - Nan Wang
- Department of Pharmaceutical Analysis, School of Pharmacy, Hebei Medical University, 361 East Zhongshan Road, Shijiazhuang, Hebei, 050017, PR China
| | - Qian Zhang
- Department of Pharmaceutical Analysis, School of Pharmacy, Hebei Medical University, 361 East Zhongshan Road, Shijiazhuang, Hebei, 050017, PR China
| | - Dezhi Kong
- Institute of Chinese Integrative Medicine, Hebei Medical University, 361 East Zhongshan Road, Shijiazhuang, Hebei, 050017, PR China.
| | - Yingfeng Du
- Department of Pharmaceutical Analysis, School of Pharmacy, Hebei Medical University, 361 East Zhongshan Road, Shijiazhuang, Hebei, 050017, PR China.
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Gong M, Wang J, Song L, Wu X, Wang Y, Li B, Zhang Y, Qin L, Duan Y, Long B. Role of BDNF-TrkB signaling in the antidepressant-like actions of loganin, the main active compound of Corni Fructus. CNS Neurosci Ther 2023; 29:3842-3853. [PMID: 37408379 PMCID: PMC10651962 DOI: 10.1111/cns.14305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2023] [Revised: 05/22/2023] [Accepted: 05/30/2023] [Indexed: 07/07/2023] Open
Abstract
AIMS Corni Fructus (CF) and some CF-contained prescriptions are commonly used in clinical treatment of depression. This investigation aims to evaluate the main active compound of CF in antidepressant properties and its key target. METHODS Firstly, this study established a behavioral despair model and used high-performance liquid chromatography method to evaluate the antidepressant-like effects of water extract, 20%, 50%, and 80% ethanol extracts of CF, and its main active compound. Then, this study created chronic unpredictable mild stress (CUMS) model to assess loganin's antidepressant-like properties, and its target was evaluated by quantitative real-time polymerase chain reaction, Western blot, Immunofluorescence, enzyme-linked immunosorbent assay, and tyrosine receptor kinase B (TrkB) inhibitor. RESULTS Results showed that the different extracts of CF significantly shortened the immobility time in forced swimming and tail suspension tests. Moreover, loganin alleviated CUMS-induced depression-like behavior, promoted neurotrophy and neurogenesis, and inhibited neuroinflammation. Furthermore, K252a blocked the improvement of loganin on depression-like behavior, and eliminated the enhancement of neurotrophy and neurogenesis and the inhibition of neuroinflammation. CONCLUSION Overall, these results indicated that loganin could be used as a major active compound of CF for the antidepressant-like properties and exerted antidepressant-like actions by regulating brain derived neurotrophic factor (BDNF)-TrkB signaling, and TrkB could be used as key target for itsantidepressant-like actions.
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Affiliation(s)
- Mingzhu Gong
- College of PharmacyHenan University of Chinese MedicineZhengzhouChina
| | - Junming Wang
- College of PharmacyHenan University of Chinese MedicineZhengzhouChina
- Co‐Construction Collaborative Innovation Center for Chinese Medicine and Respiratory Diseases by Henan & Education Ministry of P.R. ChinaHenan University of Chinese MedicineZhengzhouChina
| | - Lingling Song
- College of PharmacyHenan University of Chinese MedicineZhengzhouChina
| | - Xiaohui Wu
- College of PharmacyHenan University of Chinese MedicineZhengzhouChina
| | - Yanmei Wang
- College of PharmacyHenan University of Chinese MedicineZhengzhouChina
| | - Bingyin Li
- College of PharmacyHenan University of Chinese MedicineZhengzhouChina
| | - Yueyue Zhang
- College of PharmacyHenan University of Chinese MedicineZhengzhouChina
| | - Lingyu Qin
- College of PharmacyHenan University of Chinese MedicineZhengzhouChina
| | - Yaqian Duan
- College of PharmacyHenan University of Chinese MedicineZhengzhouChina
| | - Bingyu Long
- College of PharmacyHenan University of Chinese MedicineZhengzhouChina
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Zhou S, Liu J, Tan L, Wang Y, Li J, Wang Y, Ding C, Long H. Changes in metabolites in raw and wine processed Corni Fructus combination metabolomics with network analysis focusing on potential hypoglycemic effects. Front Pharmacol 2023; 14:1173747. [PMID: 37608891 PMCID: PMC10440738 DOI: 10.3389/fphar.2023.1173747] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Accepted: 07/25/2023] [Indexed: 08/24/2023] Open
Abstract
Introduction: Corni Fructus (CF) is a Chinese herbal medicine used for medicinal and dietary purposes. It is available commercially in two main forms: raw CF (unprocessed CF) and wine-processed CF. Clinical observations have indicated that wine-processed CF exhibits superior hypoglycemic activity compared to its raw counterpart. However, the mechanisms responsible for this improvement are not well understood. Methods: To address this gap in knowledge, we conducted metabolomics analysis using ultra-performance liquid chromatography-quadrupole/time-of-flight mass spectrometry (UPLC-QTOF-MS) to compare the chemical composition of raw CF and wine-processed CF. Subsequently, network analysis, along with immunofluorescence assays, was employed to elucidate the potential targets and mechanisms underlying the hypoglycemic effects of metabolites in CF. Results: Our results revealed significant compositional differences between raw CF and wine-processed CF, identifying 34 potential markers for distinguishing between the two forms of CF. Notably, wine processing led to a marked decrease in iridoid glycosides and flavonoid glycosides, which are abundant in raw CF. Network analysis predictions provided clues that eight compounds might serve as hypoglycemic metabolites of CF, and glucokinase (GCK) and adenylate cyclase (ADCYs) were speculated as possible key targets responsible for the hypoglycemic effects of CF. Immunofluorescence assays confirmed that oleanolic acid and ursolic acid, two bioactive compounds present in CF, significantly upregulated the expression of GCK and ADCYs in the HepG2 cell model. Discussion: These findings support the notion that CF exerted hypoglycemic activity via multiple components and targets, shedding light on the impact of processing methods on the chemical composition and hypoglycemic activity of Chinese herbal medicine.
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Affiliation(s)
- Siqian Zhou
- Center for Medical Research and Innovation, The First Hospital of Hunan University of Chinese Medicine, Changsha, China
- Hunan University of Chinese Medicine, Changsha, China
| | - Jian Liu
- Center for Medical Research and Innovation, The First Hospital of Hunan University of Chinese Medicine, Changsha, China
| | - Leihong Tan
- Department of Pharmacy, The Second Hospital of Hunan University of Chinese Medicine, Changsha, China
| | - Yikun Wang
- Department of Pharmacy, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Jing Li
- Department of Pharmacy, Xiangya Hospital, Central South University, Changsha, China
| | - Yajing Wang
- Hunan University of Chinese Medicine, Changsha, China
| | | | - Hongping Long
- Center for Medical Research and Innovation, The First Hospital of Hunan University of Chinese Medicine, Changsha, China
- Hunan University of Chinese Medicine, Changsha, China
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Sun X, Xue S, Cui Y, Li M, Chen S, Yue J, Gao Z. Characterization and identification of chemical constituents in Corni Fructus and effect of storage using UHPLC-LTQ-Orbitrap-MS. Food Res Int 2023; 164:112330. [PMID: 36737923 DOI: 10.1016/j.foodres.2022.112330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Revised: 12/06/2022] [Accepted: 12/09/2022] [Indexed: 12/14/2022]
Abstract
Corni Fructus (CF) has been widely used as both traditional medicine and food; however, systematic studies on its chemical profile and the impact of storage periods on the indicative components are lacking. In this study, UHPLC-LTQ-Orbitrap-MS was used to investigate the fragmentation behaviors of multiple compounds from CF and the content variety of its indicative components for different storage periods. The major basic components of CF were determined to be iridoid glucosides, pentacyclic triterpenoids, phenolic acids, tannins and flavonoids. The characteristic cleavage pathways of the iridoid glucosides, pentacyclic triterpenoids, phenolic acids, tannins and flavonoids were further investigated and elaborated, which could assist in identifying the structures of similar components of other Chinese herbal medicines. Using accurate mass measurements for each precursor ion and the subsequent fragmented ions, and then comparing with standards and literature data, a total of 130 components, including 69 iridoid glucosides, 9 pentacyclic triterpenoids, 16 phenolic acids, 20 tannins and 16 flavonoids, 47 of which are potentially new compounds, were identified. The storage period studies indicated that the contents of 19 indicative components in CF changed differently with the prolongation of the storage period. Among them, morroniside, loganin, sweroside, cornuside, gallic acid, oleanolic acid and ursolic acid were the most important. These results provide abundant information for the identification and improved understanding of the chemical constituents in CF to clarify the content variety of its indicative components for different storage periods.
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Affiliation(s)
- Xiaoya Sun
- School of Pharmacy, Henan University of Chinese Medicine, No. 156, Jinshui East Road, Zhengzhou 450046, China; Henan Key Laboratory of Chinese Medicine Resources and Chinese Medicine Chemistry, Henan University of Chinese Medicine, No. 156, Jinshui East Road, Zhengzhou 450046, China; Collaborative Innovation Center for Respiratory Disease Diagnosis and Treatment & Chinese Medicine Development of Henan Province, Henan University of Chinese Medicine, No. 156, Jinshui East Road, Zhengzhou 450046, China
| | - Shujuan Xue
- School of Pharmacy, Henan University of Chinese Medicine, No. 156, Jinshui East Road, Zhengzhou 450046, China; Henan Key Laboratory of Chinese Medicine Resources and Chinese Medicine Chemistry, Henan University of Chinese Medicine, No. 156, Jinshui East Road, Zhengzhou 450046, China; Collaborative Innovation Center for Respiratory Disease Diagnosis and Treatment & Chinese Medicine Development of Henan Province, Henan University of Chinese Medicine, No. 156, Jinshui East Road, Zhengzhou 450046, China
| | - Yongxia Cui
- School of Pharmacy, Henan University of Chinese Medicine, No. 156, Jinshui East Road, Zhengzhou 450046, China
| | - Meng Li
- School of Pharmacy, Henan University of Chinese Medicine, No. 156, Jinshui East Road, Zhengzhou 450046, China; Henan Key Laboratory of Chinese Medicine Resources and Chinese Medicine Chemistry, Henan University of Chinese Medicine, No. 156, Jinshui East Road, Zhengzhou 450046, China; Collaborative Innovation Center for Respiratory Disease Diagnosis and Treatment & Chinese Medicine Development of Henan Province, Henan University of Chinese Medicine, No. 156, Jinshui East Road, Zhengzhou 450046, China
| | - Suiqing Chen
- School of Pharmacy, Henan University of Chinese Medicine, No. 156, Jinshui East Road, Zhengzhou 450046, China; Henan Key Laboratory of Chinese Medicine Resources and Chinese Medicine Chemistry, Henan University of Chinese Medicine, No. 156, Jinshui East Road, Zhengzhou 450046, China; Collaborative Innovation Center for Respiratory Disease Diagnosis and Treatment & Chinese Medicine Development of Henan Province, Henan University of Chinese Medicine, No. 156, Jinshui East Road, Zhengzhou 450046, China.
| | - Jingyang Yue
- School of Pharmacy, Henan University of Chinese Medicine, No. 156, Jinshui East Road, Zhengzhou 450046, China
| | - Zhining Gao
- School of Pharmacy, Henan University of Chinese Medicine, No. 156, Jinshui East Road, Zhengzhou 450046, China
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Qian YJ, Pi WX, Zhu GF, Wei W, Lu TL, Mao CQ. Quality evaluation of raw and processed Corni Fructus by UHPLC-QTOF-MS and HPLC coupled with color determination. J Pharm Biomed Anal 2022; 218:114842. [PMID: 35659656 DOI: 10.1016/j.jpba.2022.114842] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 05/15/2022] [Accepted: 05/16/2022] [Indexed: 02/08/2023]
Abstract
Corni Fructus (CF), used for thousands of years in Asia as food and medicine, has different therapeutic effects before and after processing. In the past work, the quality assessment of Corni Fructus focused on the limited chemical compounds and rarely correlated external properties, such as color. The traditional sensory assessment relies partly on human eyes, which is quick but lacks objectivity. On a Shimadzu LC-20AD liquid chromatograph system equipped with a diode-array detector (DAD), we determined six major compounds (gallic acid, 5-hydroxymethyl-2-furaldehyde, morroniside, loganin, sweroside, and cornuside I). The extract was analyzed using ultra-high-performance liquid chromatography-quadrupole time-of-flight tandem mass spectrometry (UHPLC-QTOF-MS) after the solid-phase extraction (SPE) step. Totally 58 compounds in raw and processed Corni Fructus were identified in negative and positive ion modes according to tandem mass spectrometry (MS/MS) fragments. Iridoids, carboxylic acids, tannins, flavonoids, triterpenes, fatty acids, saccharides, phospholipids, polysaccharide, amino acid, amide, furan, catechol, aldehyde, fatty alcohol and vitamin were included. A multivariate statistical analysis based on UHPLC-QTOF-MS filtered 17 differential compounds between raw and processed products. The CM-5 colorimeter was applied for digitizing surface and powder color. The contents of gallic acid, morroniside, loganin, cornuside I, and sweroside significantly correlated with color parameters in raw Corni Fructus, particularly adp* and bdp* , but not in processed products, according to Spearman correlation analysis. MS peak area of four compounds in raw products correlated significantly with color parameters Ldp* , adp* , bdp* , Lpd* , apd* , bpd* , respectively, while three compounds in processed products with Lpd* , apd* , bpd* . It revealed the relationship between compounds and color of Corni Fructus and the crucial compounds to color. In this study, we successfully developed a method for comprehensive quality evaluation of Corni Fructus that combines HPLC, UHPLC-QTOF-MS, and color determination.
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Affiliation(s)
- Yi-Jie Qian
- College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Wen-Xia Pi
- College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China.
| | - Guang-Fei Zhu
- College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Wei Wei
- College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Tu-Lin Lu
- College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Chun-Qin Mao
- College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
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Kim SO, Choi YH, Lee EH. Aqueous extracts of Corni Fructus protect C2C12 myoblasts from DNA damage and apoptosis caused by oxidative stress. Mol Biol Rep 2022; 49:4819-4828. [PMID: 35471621 DOI: 10.1007/s11033-022-07332-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Accepted: 03/02/2022] [Indexed: 10/18/2022]
Abstract
BACKGROUND Although the various pharmacological effects of Corni Fructus are highly correlated with its antioxidant activity, the blocking effect against oxidative stress in muscle cells is not clear. The purpose of this study was to investigate the effect of aqueous extracts of Corni Fructus (CFE) against oxidative stress caused by hydrogen peroxide (H2O2) in murine skeletal C2C12 myoblasts. METHODS AND RESULTS MTT assay for cell viability, DCF-DA staining for reactive oxygen species (ROS) production, Comet assay for DNA damage, annexin V-FITC and PI double staining for apoptosis, JC-1 staining and caspase assay for monitor mitochondrial integrity, and western blotting for related protein levels were conducted in H2O2 oxidative stressed C2C12 cells. Our results showed that CFE pretreatment significantly ameliorated the loss of cell viability and inhibited apoptosis in H2O2-treated C2C12 cells in a concentration-dependent manner. DNA damage induced by H2O2 was also markedly attenuated in the presence of CFE, which was associated with suppression of ROS generation. In addition, H2O2 reduced mitochondrial membrane potential and caused downregulation of Bcl-2 and upregulation of Bax expression, although these were abrogated by CFE pretreatment. Moreover, CFE blocked H2O2-induced cytosolic release of cytochrome c, activation of caspase-9 and caspase-3, and degradation of poly (ADP-ribose) polymerase. CONCLUSION Taken together, the present results demonstrate that CFE could protect C2C12 cells from H2O2-induced damage by eliminating ROS generation, thereby blocking mitochondria-mediated apoptosis pathway. These results indicate that CFE has therapeutic potential for the prevention and treatment of oxidative stress-mediated myoblast injury.
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Affiliation(s)
- Sung Ok Kim
- Department of Food and Nutrition, Kyungsung University, Busan, 48434, Korea
| | - Yung Hyun Choi
- Department of Biochemistry, Dongeui University College of Korean Medicine, Busan, 17104, Korea
| | - Eunjoo Hwang Lee
- Graduate School of East-West Medical Science, Kyung Hee University, Yongin, 17104, South Korea.
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Lee H, Kim MY, Ji SY, Kim DH, Kim SY, Hwangbo H, Park C, Hong SH, Kim GY, Choi YH. The Protective Effect of Oral Application of Corni Fructus on the Disorders of the Cornea, Conjunctiva, Lacrimal Gland and Retina by Topical Particulate Matter 2.5. Nutrients 2021; 13:2986. [PMID: 34578864 DOI: 10.3390/nu13092986] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Revised: 08/23/2021] [Accepted: 08/25/2021] [Indexed: 12/28/2022] Open
Abstract
Particulate matter 2.5 (PM2.5) may aggravate dry eye disease (DED). Corni Fructus (CF), which is fruit of Cornus officinalis Sieb. et Zucc., has been reported to have various beneficial pharmacological effects, whereas the effect of CF on the eye is still unknown. Therefore, in this study, we investigated the effect of oral administration of water extract of CF (CFW) on the eye, hematology, and biochemistry in a DED model induced by topical exposure to PM2.5. Furthermore, the efficacy of CFW compared with cyclosporine (CsA), an anti-inflammatory agent, and lutein, the posterior eye-protective agent. Sprague-Dawley rats were topically administered 5 mg/mL PM2.5 in both eyes four times daily for 14 days. During the same period, CFW (200 mg/kg and 400 mg/kg) and lutein (4.1 mg/kg) were orally administered once a day. All eyes of rats in the 0.05% cyclosporine A (CsA)-treated group were topically exposed to 20 μL of CsA, twice daily for 14 days. Oral administration of CFW attenuated the PM2.5-induced reduction of tear secretion and corneal epithelial damage. In addition, CFW protected against goblet cell loss in conjunctiva and overexpression of inflammatory factors in the lacrimal gland following topical exposure to PM2.5. Furthermore, CFW markedly prevented PM2.5-induced ganglion cell loss and recovered the thickness of inner plexiform layer. Meanwhile, CFW treatment decreased the levels of total cholesterol and low-density lipoprotein cholesterol in serum induced by PM2.5. Importantly, the efficacy of CFW was superior or similar to that of CsA and lutein. Taken together, oral administration of CFW may have protective effects against PM2.5-induced DED symptoms via stabilization of the tear film and suppression of inflammation. Furthermore, CFW may in part contribute to improving retinal function and lipid metabolism disorder.
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Zhang ZM, Yang L, Wan Y, Jiang S, Shang EX, Qian DW, Duan JA. The synergic renoprotective effect of Rehmanniae Radix Preparata and Corni Fructus on adenine-induced chronic kidney disease rats based on integrated plasma metabolomics and network pharmacology approach. Life Sci 2021; 278:119545. [PMID: 33930370 DOI: 10.1016/j.lfs.2021.119545] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Revised: 04/14/2021] [Accepted: 04/20/2021] [Indexed: 01/20/2023]
Abstract
AIMS Rehmanniae Radix Preparata (RR) and Corni Fructus (CF) are commonly used together for the treatment of chronic kidney disease (CKD) in the clinical practices for thousands of years. However, little information on their synergy mechanism is available. MAIN METHODS In this study, an integrated approach combining ultra performance liquid chromatography-quadrupole time-of-flight mass spectrometry (UPLC-Q-TOF/MS)-based metabonomics and network pharmacology was adopted to elucidate the cooperation mechanism of RR and CF on the amelioration of CKD. Furthermore, the targets from network pharmacology and metabolism pathways were jointly analyzed. Finally, the activities of key metabolic enzymes were experimentally validated by ELISA. KEY FINDINGS Metabolic profiling indicated that the metabolic disturbance in plasma was markedly alleviated after treatment. Nine putative biomarkers mainly involving in phenylalanine, tyrosine and tryptophan biosynthesis and tyrosine metabolism were identified. Moreover, the compound-target-pathway network of RR and CF for CKD treatment was constructed by network pharmacology, which was related to tyrosine metabolism and arginine and proline metabolism. The results were partly consistent with the findings of plasma metabolomics. SIGNIFICANCE In conclusion, this study solidly supported and enhanced current understanding of the synergy effects of RR and CF on CKD. Meanwhile, it also confirmed the feasibility of combining metabolomics and network pharmacology to identify active components and elucidate the pharmacological effects of traditional Chinese medicines (TCMs).
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Affiliation(s)
- Zhi-Miao Zhang
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Nanjing University of Chinese Medicine, 138 Xianlin Road, Nanjing 210023, PR China
| | - Lei Yang
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Nanjing University of Chinese Medicine, 138 Xianlin Road, Nanjing 210023, PR China
| | - Yue Wan
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Nanjing University of Chinese Medicine, 138 Xianlin Road, Nanjing 210023, PR China
| | - Shu Jiang
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Nanjing University of Chinese Medicine, 138 Xianlin Road, Nanjing 210023, PR China.
| | - Er-Xin Shang
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Nanjing University of Chinese Medicine, 138 Xianlin Road, Nanjing 210023, PR China
| | - Da-Wei Qian
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Nanjing University of Chinese Medicine, 138 Xianlin Road, Nanjing 210023, PR China
| | - Jin-Ao Duan
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Nanjing University of Chinese Medicine, 138 Xianlin Road, Nanjing 210023, PR China.
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Zhang ZM, Yang L, Wan Y, Liu C, Jiang S, Shang EX, Duan JA. Integrated gut microbiota and fecal metabolomics reveal the renoprotective effect of Rehmanniae Radix Preparata and Corni Fructus on adenine-induced CKD rats. J Chromatogr B Analyt Technol Biomed Life Sci 2021; 1174:122728. [PMID: 33975272 DOI: 10.1016/j.jchromb.2021.122728] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Revised: 03/18/2021] [Accepted: 04/14/2021] [Indexed: 12/27/2022]
Abstract
Rehmanniae Radix Preparata (RR) and Corni Fructus (CF), well-known traditional Chinese medicines (TCMs), were generally used together in the clinical practices to treat chronic kidney disease (CKD) with synergistic effects for thousands of years, but their combination mechanism remains largely unknown so far. Recent evidences have implicated intestinal flora as potential targets for the therapy of CKD. In this study, the CKD rat model was induced by adenine. The levels of proteinuria, serum creatine (SCr), blood urea nitrogen (BUN) and creatinine clearance (Ccr) were used to assess the cooperation effect of RR and CF. Furthermore, high-throughput 16S ribosomal RNA (rRNA) gene sequencing combined with fecal metabonomics based on UPLC-Q-TOF-MS/MS were applied to explore the variations of intestinal flora and their metabolic profiles. 16S rRNA gene sequencing data indicated that CKD rats treated with RR, CF and RC showed the differences in the composition of gut microbiota. The abundance of beneficial bacteria including Ruminococcaceae UCG-014, Ruminococcus 1, Prevotellaceae_NK3B31_group, Lachnospiraceae NK4A136 group and Lachnospiraceae UCG-001 were elevated in various degrees, while the opportunistic pathogen such as Desulfovibrio was markedly decreased after the treatment. Moreover, fecal metabolite profiles revealed 15 different metabolites associated with CKD. These metabolites were mainly involved in the related metabolic pathways such as amino acid metabolism, bile acids metabolism and glycerophospholipid metabolism. The results implied that gut flora and their metabolites might play a vital role in the progress of CKD, which provided a potential target for the development of novel drugs for the therapy of CKD.
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Niu D, An S, Chen X, Bi H, Zhang Q, Wang T, Han B, Zhang H, Kang J. Corni Fructus as a Natural Resource Can Treat Type 2 Diabetes by Regulating Gut Microbiota. Am J Chin Med 2020; 48:1385-1407. [PMID: 32907359 DOI: 10.1142/s0192415x20500688] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Accumulating evidence suggests that gut microbiota plays a crucial role in the development of metabolic diseases, especially type 2 diabetes mellitus (T2DM). The nutrient-rich resource Cornus Fructus (CF) showed curative effects on diabetes mellitus. However, the mechanism underlying its hyperglycemic activity remains obscure. Herein, the antidiabetic potential of four extracts from CF, including saponin (CTS), iridoid glycoside (CIG), tannin (CT), and alcohol extract (CCA) was evaluated in vivo. The results showed that all four extracts could increase the body weight, decrease the blood glucose levels, and elevate the glucose tolerance. Moreover, insulin sensitivity and lipid profile were significantly improved in fed mice. In the [Formula: see text]-diversity index of samples, compared to the DM group, the diversity and richness of gut microbiota in mice to a certain extent were reduced in both CF extracts and Metformin (PC). Among them, there was statistical significance in PC (ACE, [Formula: see text]) and CCA (ACE, [Formula: see text]; chao1: [Formula: see text]). Beta diversity showed the same trend as the UPGMA clustering trees, which revealed that CF extracts could improve intestinal homeostasis in T2DM mice. Also, CF extracts could elevate the production of short-chain fatty acids, as well as regulate the composition of gut microbiota. The key bacteria related to T2DM including Firmicutes, Bacteroides, Lactobacillus, and Clostridium were modulated by metformin and CF. Altogether, CF is a potential nutrient-rich candidate that can be used in functional foods for the treatment of T2DM, and the change of gut microbiota might be a novel mechanism underlying its hyperglycemic activity.
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Affiliation(s)
- Dou Niu
- Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, National Engineering Laboratory for Resource, Development of Endangered Crude, Drugs in Northwest of China, College of Life Sciences, Shaanxi Normal University, Xi'an, Shaanxi 710062, P. R. China
| | - Shujing An
- Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, National Engineering Laboratory for Resource, Development of Endangered Crude, Drugs in Northwest of China, College of Life Sciences, Shaanxi Normal University, Xi'an, Shaanxi 710062, P. R. China
| | - Xue Chen
- Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, National Engineering Laboratory for Resource, Development of Endangered Crude, Drugs in Northwest of China, College of Life Sciences, Shaanxi Normal University, Xi'an, Shaanxi 710062, P. R. China
| | - Huailong Bi
- Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, National Engineering Laboratory for Resource, Development of Endangered Crude, Drugs in Northwest of China, College of Life Sciences, Shaanxi Normal University, Xi'an, Shaanxi 710062, P. R. China
| | - Qiusheng Zhang
- Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, National Engineering Laboratory for Resource, Development of Endangered Crude, Drugs in Northwest of China, College of Life Sciences, Shaanxi Normal University, Xi'an, Shaanxi 710062, P. R. China
| | - Ting Wang
- Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, National Engineering Laboratory for Resource, Development of Endangered Crude, Drugs in Northwest of China, College of Life Sciences, Shaanxi Normal University, Xi'an, Shaanxi 710062, P. R. China
| | - Binkai Han
- Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, National Engineering Laboratory for Resource, Development of Endangered Crude, Drugs in Northwest of China, College of Life Sciences, Shaanxi Normal University, Xi'an, Shaanxi 710062, P. R. China
| | - Huafeng Zhang
- International Joint Research Center of Shaanxi Province for Food and Health Sciences, College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an, Shaanxi 710062, P. R. China
| | - Jiefang Kang
- Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, National Engineering Laboratory for Resource, Development of Endangered Crude, Drugs in Northwest of China, College of Life Sciences, Shaanxi Normal University, Xi'an, Shaanxi 710062, P. R. China
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Ye XS, He J, Xu JK, He XL, Xia CY, Yan Y, Lian WW, Zhang WK. Undescribed morroniside-like secoiridoid diglycosides with α-glucosidase inhibitory activity from Corni Fructus. Phytochemistry 2020; 171:112232. [PMID: 31911266 DOI: 10.1016/j.phytochem.2019.112232] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2019] [Revised: 12/03/2019] [Accepted: 12/17/2019] [Indexed: 06/10/2023]
Abstract
Corni Fructus, also known as the fruit of Cornus officinalis Sieb. et Zucc., has long been used as a traditional Chinese medicine and is widely consumed as a nutritional food in the form of function drink and wine. Recently, Corni Fructus has attracted considerable interest because of its anti-diabetic effects. A systematic phytochemical investigation of Corni Fructus was performed to find anti-diabetic components, which led to the isolation of 10 unreported iridoid glycosides, cornusdiglycosides A-J (1-8, 9a/9b and 10a/10b). Their chemical structures were determined through spectroscopic analysis (ultraviolet [UV], infrared [IR], high-resolution electrospray ionisation mass spectroscopy [HRESIMS], one-dimensional [1D] and two-dimensional [2D] nuclear magnetic resonance [NMR]). Such morroniside-type diglycosides were first reported from natural sources, and all isolates were evaluated for α-glucosidase inhibitory activity. The results showed that all compounds (1-10) exhibited α-glucosidase (from Saccharomyces cerevisiae) inhibitory activities with IC50 values ranging from 78.9 ± 4.09 to 162.2 ± 9.17 μM, whereas acarbose, the positive control, displayed α-glucosidase inhibitory activity with IC50 value of 118.9 ± 7.89 μM.
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Affiliation(s)
- Xian-Sheng Ye
- Institute of Clinical Medical Sciences & Department of Pharmacy, China-Japan Friendship Hospital, Beijing, 100029, People's Republic of China; School of Life Sciences, Beijing University of Chinese Medicine, Beijing, 100029, People's Republic of China
| | - Jun He
- Institute of Clinical Medical Sciences & Department of Pharmacy, China-Japan Friendship Hospital, Beijing, 100029, People's Republic of China
| | - Jie-Kun Xu
- School of Life Sciences, Beijing University of Chinese Medicine, Beijing, 100029, People's Republic of China
| | - Xiao-Li He
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100193, People's Republic of China
| | - Cong-Yuan Xia
- Institute of Clinical Medical Sciences & Department of Pharmacy, China-Japan Friendship Hospital, Beijing, 100029, People's Republic of China
| | - Yu Yan
- Institute of Clinical Medical Sciences & Department of Pharmacy, China-Japan Friendship Hospital, Beijing, 100029, People's Republic of China
| | - Wen-Wen Lian
- Institute of Clinical Medical Sciences & Department of Pharmacy, China-Japan Friendship Hospital, Beijing, 100029, People's Republic of China
| | - Wei-Ku Zhang
- Institute of Clinical Medical Sciences & Department of Pharmacy, China-Japan Friendship Hospital, Beijing, 100029, People's Republic of China.
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Dong Y, Feng ZL, Chen HB, Wang FS, Lu JH. Corni Fructus: a review of chemical constituents and pharmacological activities. Chin Med 2018; 13:34. [PMID: 29983732 PMCID: PMC6020197 DOI: 10.1186/s13020-018-0191-z] [Citation(s) in RCA: 66] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2018] [Accepted: 06/15/2018] [Indexed: 01/22/2023] Open
Abstract
Cornus officinalis Sieb. et Zucc. is part of the genus Cornus of the family Cornaceae. Ripening and dry fruits (Corni Fructus) are recognized as an essential herb medicine in the traditional Chinese medicine (TCM) and have been widely used for over 2000 years. This review provides a comprehensive summary of Corni Fructus (CF), including the botany, phytochemistry, traditional use, and current pharmacological activities. According to the basic theory of TCM, CF usually participates in various Chinese medicinal formulae to exert the essential roles in replenishing liver and kidney, arresting seminal emission and sweat. Based on modern pharmacological studies, about 90 compounds have been isolated and identified from CF. In vivo and in vitro experimental studies indicate that CF exhibits extensive pharmacological activities including hypoglycemic, antioxidant, anti-inflammatory, anticancer, neuroprotective, hepatoprotective, and nephroprotective activities. However, only about 18% of chemical constituents in CF were tested. It means the potential pharmacological activities and clinical values of CF need to be further investigated.
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Affiliation(s)
- Yu Dong
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Room 7015, N22, Avenida da Universidade, Taipa, Macau SAR People's Republic of China
| | - Zhe-Ling Feng
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Room 7015, N22, Avenida da Universidade, Taipa, Macau SAR People's Republic of China
| | - Hu-Biao Chen
- 2School of Chinese Medicine, Hong Kong Baptist University, Hong Kong, SAR People's Republic of China
| | - Fu-Sheng Wang
- 3Ulcerous Vascular Surgical Department, Beijing Traditional Chinese Medicine Hospital Affiliated to Capital Medical University, Beijing, People's Republic of China
| | - Jia-Hong Lu
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Room 7015, N22, Avenida da Universidade, Taipa, Macau SAR People's Republic of China
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Park CH, Xu FH, Roh SS, Song YO, Uebaba K, Noh JS, Yokozawa T. Astaxanthin and Corni Fructus protect against diabetes-induced oxidative stress, inflammation, and advanced glycation end product in livers of streptozotocin-induced diabetic rats. J Med Food 2015; 18:337-44. [PMID: 25569034 DOI: 10.1089/jmf.2014.3174] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
This study was conducted to compare the protective effects of astaxanthin (ASX) with Corni Fructus (CF) against diabetes-induced pathologies such as oxidative stress-induced inflammation and advanced glycation end product (AGE) formation in the liver of type 1 diabetic rats. ASX (50 mg/kg body weight/day) or CF (200 mg/kg body weight/day) was orally administered every day for 18 days to streptozotocin (STZ)-induced diabetic rats, and their effects were compared with nondiabetic and diabetic control rats. The administration of CF, but not ASX, decreased both the elevated serum and hepatic glucose concentration in diabetic rats. In diabetic rats, increased levels of AGE, reactive oxygen species, and lipid peroxidation were significantly decreased by treatment with both ASX and CF in the liver of diabetic rats. STZ treatment markedly augmented the protein expressions of AGE, and both ASX and CF efficiently attenuated these increases in hepatic protein expressions. In addition, oxidative stress and proinflammatory protein expressions were upregulated in the diabetic rats. On the contrary, these upregulations of protein expressions were decreased by the administration of ASX or CF. These results suggest that the inhibitory effect of ASX on diabetes-induced hepatic dysfunction could be derived from the blocking of AGE formation and further anti-inflammation and that CF exhibited beneficial effects through the attenuation of hyperglycemia, and thus the inhibition of AGE formation and the inflammatory responses. Therefore, ASX as well as CF may help prevent ongoing diabetes-induced hepatic injury.
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Affiliation(s)
- Chan Hum Park
- 1 College of Korean Medicine, Daegu Haany University , Daegu, Korea
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Han Y, Jung HW, Park YK. Selective therapeutic effect of cornus officinalis fruits on the damage of different organs in STZ-induced diabetic rats. Am J Chin Med 2014; 42:1169-82. [PMID: 25169907 DOI: 10.1142/s0192415x14500736] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The aim of the present study was to identify the selective therapeutic effects of Corni Fructus (Cornus officinalis Sieb. et Zucc.) on different organs in streptozotocin (STZ)-induced diabetic rats. Diabetes in rats was induced by intraperitonal injection with STZ at a dose of 30 mg/kg body weight (bw) for 3 days (once per a day). STZ-induced diabetic rats were orally administrated Corni Fructus (CF) extract at 300 mg/kg or metformin at 250 mg/kg daily for 4 weeks. Blood glucose and triglyceride (TG) in sera and urine total volume were measured. Histopathological changes of different organs, pancreas, liver, kidney, and lung tissues were observed by H&E staining. The expression of insulin and α-smooth muscle actin (α-SMA) was investigated in pancreas, and kidney by immunohistochemistry, respectively. The results revealed that CF extract significantly decreased the serum levels of blood glucose, and TG, and also urine total volume in STZ-induced diabetic rats. The histological examinations revealed amelioration of diabetes-induced pancreas injury including pathological changes of the Langerhans's islet and glomerular with their loss after the administration of CF extraction. Moreover, the administration of CF extract increased the numbers of insulin releasing beta cells in pancreas and also inhibited the expression of α-SMA in kidney of STZ-induced diabetic rats. On the other hand, CF extract showed no effect on the pathological damages of liver and lung in STZ-induced diabetic rats. These results demonstrated that CF extract may have a selective therapeutic potential through the control of hyperglycemia, and the protection of pancreas and kidney against diabetic damage.
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Affiliation(s)
- Yunkyung Han
- Korean Medicine R&D Center, Dongguk University, Gyeongju 780-714, Republic of Korea
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Kim HJ, Kim BH, Kim YC. Antioxidative action of corni fructus aqueous extract on kidneys of diabetic mice. Toxicol Res 2011; 27:37-41. [PMID: 24278549 PMCID: PMC3834510 DOI: 10.5487/tr.2011.27.1.037] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2011] [Revised: 01/24/2011] [Accepted: 01/28/2011] [Indexed: 12/17/2022] Open
Abstract
This study investigated the antioxidative action of Corni Fructus aqueous extract on kidneys of diabetic mice. The electron donating abilities of Corni Fructus aqueous extract and its antioxidant activities (XO, SOD, CAT, GST, eNOS) in kidneys of C57BL/6 or db/db mice were evaluated. For in vivo study, seven week-old male mice were divided into normal control group (NC, C57BL/6 mice) , diabetic control group (DC, db/db mice) and Corni Fructus (500 mg/kg/day for 8 weeks) treated diabetic group (DCF, db/db mice) . The electron donating abilities of Corni Fructus aqueous extract exhibited 7%, 24.4%, and 42.7% at concentrations of 100, 500, and 1000 μg/ml, respectively. The activity of XO in the DCF group was significantly lower than the DC group by 35% (p < 0.05) . The SOD activity was significantly higher in the DCF group than the DC group by 26% (p < 0.05) . The activities of CAT and GST were lowered in the DCF group than the DC group by 26% (p < 0.05) and 7.6%, respectively. The mRNA expression of eNOS in kidneys was lower in the DCF group than the DC group by 24%. These results indicate that Corni Fructus reduced oxidation stress as evidenced by the restoration of the enzymatic antioxidative defense system in renal tissues of db/db mice. It is suggested that these antioxidative actions of Corni Fructus on renal tissues in db/db mice could contribute to its renoprotective effects on diabetic nephropathy.
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Affiliation(s)
- Hye-Jeong Kim
- Department of Clinical Pathology, Kyungwoon University, Gyeongbuk 730-739
| | - Bae-Hwan Kim
- Department of Public Health, Keimyung University, Daegu 704-701, Korea
| | - Young-Chul Kim
- Department of Public Health, Keimyung University, Daegu 704-701, Korea
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Kim HJ, Kim KS, Lee TJ, Kim YC. Antidiabetic Effects of Corni Fructus Extract on Blood Glucose and Insulin Resistance in db/db Mice. Toxicol Res 2009; 25:93-99. [PMID: 32038825 PMCID: PMC7006319 DOI: 10.5487/tr.2009.25.2.093] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2009] [Accepted: 05/28/2009] [Indexed: 11/20/2022] Open
Abstract
This study investigated the effect of Corni Fructus (Cornus officinalis Sieb, et Zucc.) extract on blood glucose and insulin resistance in db/db mice. Seven weeks old male mice were divided into normal control group (NC), diabetic control group (DC) and Corni Fructus treated diabetic group (DCF). Over an 8-week experimental period, Corni Fructus extract was administered orally at 500 mg/kg BW/day. Corni Fructus inhibited increase in blood glucose level during the OGTT (oral glucose tolerance test). At 8 weeks after beginning of the experiment, blood glucose level in the DCF group was significantly lower (p<0.01) than the DC group. Final fasting serum glucose and triglyceride in the DCF group were significantly lower (p<0.05) than the DC group by 32% and 41% respectively. Serum insulin did not differ among the NC, DC and DCF groups. The mRNA expression of adiponectin, GLUT 4 and PPAR-γ in adipose tissue in the DC group were significantly lower than the NC group and they were higher in the DCF group than the DC group by 76%, 130% (p<0.05) and 43%, respectively. In conclusion, these results indicated that Corni Fructus would have antidiabetic effects via improving insulin resistance in favor of higher glucose utilization and reducing blood glucose level in db/db mice.
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Affiliation(s)
- Hye Jeong Kim
- 15Department of Public Health, College of Natural Sciences, Keimyung University, 2800 Dalgubeoldaero, Dalseo-gu, Daegu, 704-701 Korea.,25Division of Human Blood Safety Surveillance, Korea Centers for Disease Control & Prevention, Seoul, 122-701 Korea
| | - Kil-Soo Kim
- 35College of Veterinary Medicine, Kyungpook National University, Daegu, 702-701 Korea
| | - Tae-Jong Lee
- 45Dept. of Pathology, Daegu Fatima Hospital, Daegu, 701-600 Korea
| | - Young Chul Kim
- 15Department of Public Health, College of Natural Sciences, Keimyung University, 2800 Dalgubeoldaero, Dalseo-gu, Daegu, 704-701 Korea
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