1
|
Li Y, Kong E, Ding R, Chu R, Lu J, Deng M, Hua T, Yang M, Wang H, Chen D, Song H, Wei H, Zhang P, Han C, Yuan H. Hyperglycemia-induced Sirt3 downregulation increases microglial aerobic glycolysis and inflammation in diabetic neuropathic pain pathogenesis. CNS Neurosci Ther 2024; 30:e14913. [PMID: 39123294 PMCID: PMC11315676 DOI: 10.1111/cns.14913] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2024] [Revised: 06/16/2024] [Accepted: 06/17/2024] [Indexed: 08/12/2024] Open
Abstract
BACKGROUND Hyperglycemia-induced neuroinflammation significantly contributes to diabetic neuropathic pain (DNP), but the underlying mechanisms remain unclear. OBJECTIVE To investigate the role of Sirt3, a mitochondrial deacetylase, in hyperglycemia-induced neuroinflammation and DNP and to explore potential therapeutic interventions. METHOD AND RESULTS Here, we found that Sirt3 was downregulated in spinal dorsal horn (SDH) of diabetic mice by RNA-sequencing, which was further confirmed at the mRNA and protein level. Sirt3 deficiency exacerbated hyperglycemia-induced neuroinflammation and DNP by enhancing microglial aerobic glycolysis in vivo and in vitro. Overexpression of Sirt3 in microglia alleviated inflammation by reducing aerobic glycolysis. Mechanistically, high-glucose stimulation activated Akt, which phosphorylates and inactivates FoxO1. The inactivation of FoxO1 diminished the transcription of Sirt3. Besides that, we also found that hyperglycemia induced Sirt3 degradation via the mitophagy-lysosomal pathway. Blocking Akt activation by GSK69093 or metformin rescued the degradation of Sirt3 protein and transcription inhibition of Sirt3 mRNA, which substantially diminished hyperglycemia-induced inflammation. Metformin in vivo treatment alleviated neuroinflammation and diabetic neuropathic pain by rescuing hyperglycemia-induced Sirt3 downregulation. CONCLUSION Hyperglycemia induces metabolic reprogramming and inflammatory activation in microglia through the regulation of Sirt3 transcription and degradation. This novel mechanism identifies Sirt3 as a potential drug target for treating DNP.
Collapse
Affiliation(s)
- Yongchang Li
- Department of Anesthesiology, Shanghai Changzheng HospitalSecond Affiliated Hospital of Naval Medical UniversityShanghaiChina
| | - Erliang Kong
- Department of Anesthesiology, Shanghai Changzheng HospitalSecond Affiliated Hospital of Naval Medical UniversityShanghaiChina
- Department of AnesthesiologyThe 988th Hospital of Joint Logistic Support Force of Chinese People's Liberation ArmyZhengzhouHenanChina
| | - Ruifeng Ding
- Department of Anesthesiology, Shanghai Changzheng HospitalSecond Affiliated Hospital of Naval Medical UniversityShanghaiChina
| | - Ruitong Chu
- Department of Anesthesiology, Shanghai Changzheng HospitalSecond Affiliated Hospital of Naval Medical UniversityShanghaiChina
| | - Jinfang Lu
- Department of Anesthesiology, Shanghai Changzheng HospitalSecond Affiliated Hospital of Naval Medical UniversityShanghaiChina
| | - Mengqiu Deng
- Department of Anesthesiology, Shanghai Changzheng HospitalSecond Affiliated Hospital of Naval Medical UniversityShanghaiChina
| | - Tong Hua
- Department of Anesthesiology, Shanghai Changzheng HospitalSecond Affiliated Hospital of Naval Medical UniversityShanghaiChina
| | - Mei Yang
- Department of Anesthesiology, Shanghai Changzheng HospitalSecond Affiliated Hospital of Naval Medical UniversityShanghaiChina
| | - Haowei Wang
- Department of Anesthesiology, Shanghai Changzheng HospitalSecond Affiliated Hospital of Naval Medical UniversityShanghaiChina
| | - Dashuang Chen
- Department of Anesthesiology, Shanghai Changzheng HospitalSecond Affiliated Hospital of Naval Medical UniversityShanghaiChina
| | - Honghao Song
- Department of Anesthesiology, Shanghai Changzheng HospitalSecond Affiliated Hospital of Naval Medical UniversityShanghaiChina
| | - Huawei Wei
- Department of Anesthesiology, Shanghai Changzheng HospitalSecond Affiliated Hospital of Naval Medical UniversityShanghaiChina
| | - Ping Zhang
- Department of Neurology, Naval Medical Center of PLANaval Medical UniversityShanghaiChina
| | - Chaofeng Han
- Department of Histology and Embryology, Shanghai Key Laboratory of Cell EngineeringNaval Medical UniversityShanghaiChina
- National Key Laboratory of Immunity & InflammationNaval Medical UniversityShanghaiChina
| | - Hongbin Yuan
- Department of Anesthesiology, Shanghai Changzheng HospitalSecond Affiliated Hospital of Naval Medical UniversityShanghaiChina
| |
Collapse
|
2
|
Kang T, Qin X, Chen Y, Yang Q. Systematic investigation of Radix Salviae for treating diabetic peripheral neuropathy disease based on network Pharmacology. World J Diabetes 2024; 15:945-957. [PMID: 38766429 PMCID: PMC11099361 DOI: 10.4239/wjd.v15.i5.945] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Revised: 02/07/2024] [Accepted: 03/13/2024] [Indexed: 05/10/2024] Open
Abstract
BACKGROUND Diabetic peripheral neuropathy (DPN) is a debilitating complication of diabetes mellitus with limited available treatment options. Radix Salviae, a traditional Chinese herb, has shown promise in treating DPN, but its therapeutic mech-anisms have not been systematically investigated. AIM Radix Salviae (Danshen in pinin), a traditional Chinese medicine (TCM), is widely used to treat DPN in China. However, the mechanism through which Radix Salviae treats DPN remains unclear. Therefore, we aimed to explore the mechanism of action of Radix Salviae against DPN using network pharmacology. METHODS The active ingredients and target genes of Radix Salviae were screened using the TCM pharmacology database and analysis platform. The genes associated with DPN were obtained from the Gene Cards and OMIM databases, a drug-com-position-target-disease network was constructed, and a protein-protein inter-action network was subsequently constructed to screen the main targets. Gene Ontology (GO) functional annotation and pathway enrichment analysis were performed via the Kyoto Encyclopedia of Genes and Genomes (KEGG) using Bioconductor. RESULTS A total of 56 effective components, 108 targets and 4581 DPN-related target genes of Radix Salviae were screened. Intervention with Radix Salviae for DPN mainly involved 81 target genes. The top 30 major targets were selected for enrichment analysis of GO and KEGG pathways. CONCLUSION These results suggested that Radix Salviae could treat DPN by regulating the AGE-RAGE signaling pathway and the PI3K-Akt signaling pathway. Therefore, Danshen may affect DPN by regulating inflammation and apoptosis.
Collapse
Affiliation(s)
- Tao Kang
- Department of Neurology, Shaanxi Provincial People’s Hospital, Xi'an 710068, Shaanxi Province, China
| | - Xiao Qin
- Department of Neurology, Shaanxi Provincial People’s Hospital, Xi'an 710068, Shaanxi Province, China
| | - Yan Chen
- Department of Neurology, Shaanxi Provincial People’s Hospital, Xi'an 710068, Shaanxi Province, China
| | - Qian Yang
- Department of Neurology, Shaanxi Provincial People’s Hospital, Xi'an 710068, Shaanxi Province, China
| |
Collapse
|
3
|
Li J, Liu J, Shi W, Guo J. Role and molecular mechanism of Salvia miltiorrhiza associated with chemical compounds in the treatment of diabetes mellitus and its complications: A review. Medicine (Baltimore) 2024; 103:e37844. [PMID: 38640337 PMCID: PMC11029945 DOI: 10.1097/md.0000000000037844] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Revised: 02/08/2024] [Accepted: 03/19/2024] [Indexed: 04/21/2024] Open
Abstract
Diabetes mellitus (DM) is one of the most prevalent diseases worldwide, greatly impacting patients' quality of life. This article reviews the progress in Salvia miltiorrhiza, an ancient Chinese plant, for the treatment of DM and its associated complications. Extensive studies have been conducted on the chemical composition and pharmacological effects of S miltiorrhiza, including its anti-inflammatory and antioxidant activities. It has demonstrated potential in preventing and treating diabetes and its consequences by improving peripheral nerve function and increasing retinal thickness in diabetic individuals. Moreover, S miltiorrhiza has shown effectiveness when used in conjunction with angiotensin-converting enzyme inhibitors, angiotensin receptor blockers (ARBs), and statins. The safety and tolerability of S miltiorrhiza have also been thoroughly investigated. Despite the established benefits of managing DM and its complications, further research is needed to determine appropriate usage, dosage, long-term health benefits, and safety.
Collapse
Affiliation(s)
- Jiajie Li
- School of Integrated Chinese and Western Medicine, Anhui University of Chinese Medicine, Hefei, Anhui, PR China
| | - Jinxing Liu
- School of Integrated Chinese and Western Medicine, Anhui University of Chinese Medicine, Hefei, Anhui, PR China
| | - Weibing Shi
- The First Affiliated Hospital of Anhui University of Chinese Medicine, Hefei, Anhui, PR China
| | - Jinchen Guo
- School of Traditional Chinese Medicine, Anhui University of Chinese Medicine, Hefei, Anhui, PR China
| |
Collapse
|
4
|
Rakshe PS, Dutta BJ, Chib S, Maurya N, Singh S. Unveiling the interplay of AMPK/SIRT1/PGC-1α axis in brain health: Promising targets against aging and NDDs. Ageing Res Rev 2024; 96:102255. [PMID: 38490497 DOI: 10.1016/j.arr.2024.102255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2024] [Revised: 02/21/2024] [Accepted: 02/27/2024] [Indexed: 03/17/2024]
Abstract
The escalating prevalence of neurodegenerative diseases (NDDs) within an aging global population presents a pressing challenge. The multifaceted pathophysiological mechanisms underlying these disorders, including oxidative stress, mitochondrial dysfunction, and neuroinflammation, remain complex and elusive. Among these, the AMPK/SIRT1/PGC-1α pathway emerges as a pivotal network implicated in neuroprotection against these destructive processes. This review sheds light on the potential therapeutic implications of targeting this axis, specifically emphasizing the promising role of flavonoids in mitigating NDD-related complications. Expanding beyond conventional pharmacological approaches, the exploration of non-pharmacological interventions such as exercise and calorie restriction (CR), coupled with the investigation of natural compounds, offers a beacon of hope. By strategically elucidating the intricate connections within these pathways, this review aims to pave the ways for novel multi-target agents and interventions, fostering a renewed optimism in the quest to combat and manage the debilitating impacts of NDDs on global health and well-being.
Collapse
Affiliation(s)
- Pratik Shankar Rakshe
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research, Export Promotion Industrial Park (EPIP), Zandaha Road, Hajipur, Bihar, India
| | - Bhaskar Jyoti Dutta
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research, Export Promotion Industrial Park (EPIP), Zandaha Road, Hajipur, Bihar, India
| | - Shivani Chib
- Department of Pharmacology, Central University of Punjab, Badal - Bathinda Rd, Ghudda, Punjab, India
| | - Niyogita Maurya
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research, Export Promotion Industrial Park (EPIP), Zandaha Road, Hajipur, Bihar, India
| | - Sanjiv Singh
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research, Export Promotion Industrial Park (EPIP), Zandaha Road, Hajipur, Bihar, India.
| |
Collapse
|
5
|
Min SH, Kang GM, Park JW, Kim MS. Beneficial Effects of Low-Grade Mitochondrial Stress on Metabolic Diseases and Aging. Yonsei Med J 2024; 65:55-69. [PMID: 38288646 PMCID: PMC10827639 DOI: 10.3349/ymj.2023.0131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Revised: 11/07/2023] [Accepted: 12/04/2023] [Indexed: 02/01/2024] Open
Abstract
Mitochondria function as platforms for bioenergetics, nutrient metabolism, intracellular signaling, innate immunity regulators, and modulators of stem cell activity. Thus, the decline in mitochondrial functions causes or correlates with diabetes mellitus and many aging-related diseases. Upon stress or damage, the mitochondria elicit a series of adaptive responses to overcome stress and restore their structural integrity and functional homeostasis. These adaptive responses to low-level or transient mitochondrial stress promote health and resilience to upcoming stress. Beneficial effects of low-grade mitochondrial stress, termed mitohormesis, have been observed in various organisms, including mammals. Accumulated evidence indicates that treatments boosting mitohormesis have therapeutic potential in various human diseases accompanied by mitochondrial stress. Here, we review multiple cellular signaling pathways and interorgan communication mechanisms through which mitochondrial stress leads to advantageous outcomes. We also discuss the relevance of mitohormesis in obesity, diabetes, metabolic liver disease, aging, and exercise.
Collapse
Affiliation(s)
- Se Hee Min
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Diabetes Center, Asan Medical Center and University of Ulsan College of Medicine, Seoul, Korea
- Appetite Regulation Laboratory, Asan Institute for Life Science, Seoul, Korea
| | - Gil Myoung Kang
- Appetite Regulation Laboratory, Asan Institute for Life Science, Seoul, Korea
| | - Jae Woo Park
- Appetite Regulation Laboratory, Asan Institute for Life Science, Seoul, Korea
| | - Min-Seon Kim
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Diabetes Center, Asan Medical Center and University of Ulsan College of Medicine, Seoul, Korea
- Appetite Regulation Laboratory, Asan Institute for Life Science, Seoul, Korea.
| |
Collapse
|
6
|
Zhai M, Hu H, Zheng Y, Wu B, Sun W. PGC1α: an emerging therapeutic target for chemotherapy-induced peripheral neuropathy. Ther Adv Neurol Disord 2023; 16:17562864231163361. [PMID: 36993941 PMCID: PMC10041632 DOI: 10.1177/17562864231163361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Accepted: 02/25/2023] [Indexed: 03/29/2023] Open
Abstract
Chemotherapy-induced peripheral neuropathy (CIPN)-mediated paresthesias are a common complication in cancer patients undergoing chemotherapy. There are currently no treatments available to prevent or reverse CIPN. Therefore, new therapeutic targets are urgently needed to develop more effective analgesics. However, the pathogenesis of CIPN remains unclear, and the prevention and treatment strategies of CIPN are still unresolved issues in medicine. More and more studies have demonstrated that mitochondrial dysfunction has become a major factor in promoting the development and maintenance of CIPN, and peroxisome proliferator-activated receptor gamma (PPARγ) coactivator 1α (PGC1α) plays a significant role in maintaining the mitochondrial function, protecting peripheral nerves, and alleviating CIPN. In this review, we highlight the core role of PGC1α in regulating oxidative stress and maintaining normal mitochondrial function and summarize recent advances in its therapeutic effects and mechanisms in CIPN and other forms of peripheral neuropathy. Emerging studies suggest that PGC1α activation may positively impact CIPN mitigation by modulating oxidative stress, mitochondrial dysfunction, and inflammation. Therefore, novel therapeutic strategies targeting PGC1α could be a potential therapeutic target in CIPN.
Collapse
Affiliation(s)
- Mingzhu Zhai
- Center for Medical Experiments (CME), University of Chinese Academy of Sciences-Shenzhen Hospital, Shenzhen, China
- Yantian Hospital, Southern University of Science and Technology, Shenzhen, China
| | - Haibei Hu
- Center for Medical Experiments (CME), University of Chinese Academy of Sciences-Shenzhen Hospital, Shenzhen, China
| | - Yi Zheng
- Center for Medical Experiments (CME), University of Chinese Academy of Sciences-Shenzhen Hospital, Shenzhen, China
| | - Benqing Wu
- Center for Medical Experiments (CME), University of Chinese Academy of Sciences-Shenzhen Hospital, Shenzhen 518016, China
| | | |
Collapse
|
7
|
Wang P, Chi J, Guo H, Wang SX, Wang J, Xu EP, Dai LP, Wang ZM. Identification of Differential Compositions of Aqueous Extracts of Cinnamomi Ramulus and Cinnamomi Cortex. Molecules 2023; 28:molecules28052015. [PMID: 36903261 PMCID: PMC10004064 DOI: 10.3390/molecules28052015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Revised: 02/16/2023] [Accepted: 02/18/2023] [Indexed: 02/24/2023] Open
Abstract
Cinnamomi ramulus (CR) and Cinnamomi cortex (CC), both sourced from Cinnamomum cassia Presl, are commonly used Chinese medicines in the Chinese Pharmacopeia. However, while CR functions to dissipate cold and to resolve external problems of the body, CC functions to warm the internal organs. To clarify the material basis of these different functions and clinical effects, a simple and reliable UPLC-Orbitrap-Exploris-120-MS/MS method combined with multivariate statistical analyses was established in this study with the aim of exploring the difference in chemical compositions of aqueous extracts of CR and CC. As the results indicated, a total of 58 compounds was identified, including nine flavonoids, 23 phenylpropanoids and phenolic acids, two coumarins, four lignans, four terpenoids, 11 organic acids and five other components. Of these compounds, 26 significant differential compounds were identified statistically including six unique components in CR and four unique components in CC. Additionally, a robust HPLC method combined with hierarchical clustering analysis (HCA) was developed to simultaneously determine the concentrations and differentiating capacities of five major active ingredients in CR and CC: coumarin, cinnamyl alcohol, cinnamic acid, 2-methoxycinnamic acid and cinnamaldehyde. The HCA results showed that these five components could be used as markers for successfully distinguishing CR and CC. Finally, molecular docking analyses were conducted to obtain the affinities between each of the abovementioned 26 differential components, focusing on targets involved in diabetes peripheral neuropathy (DPN). The results indicated that the special and high-concentration components in CR showed high docking scores of affinities with targets such as HbA1c and proteins in the AMPK-PGC1-SIRT3 signaling pathway, suggesting that CR has greater potential than CC for treating DPN.
Collapse
Affiliation(s)
- Pei Wang
- Henan University of Chinese Medicine, Zhengzhou 450046, China
- Engineering Technology Research Center for Comprehensive Development and Utilization of Authentic Medicinal Materials in Henan Province, Henan University of Chinese Medicine, Zhengzhou 450046, China
| | - Jun Chi
- Henan University of Chinese Medicine, Zhengzhou 450046, China
- Engineering Technology Research Center for Comprehensive Development and Utilization of Authentic Medicinal Materials in Henan Province, Henan University of Chinese Medicine, Zhengzhou 450046, China
| | - Hui Guo
- Henan University of Chinese Medicine, Zhengzhou 450046, China
- Engineering Technology Research Center for Comprehensive Development and Utilization of Authentic Medicinal Materials in Henan Province, Henan University of Chinese Medicine, Zhengzhou 450046, China
| | - Shun-Xiang Wang
- Henan University of Chinese Medicine, Zhengzhou 450046, China
- Engineering Technology Research Center for Comprehensive Development and Utilization of Authentic Medicinal Materials in Henan Province, Henan University of Chinese Medicine, Zhengzhou 450046, China
| | - Jing Wang
- Henan University of Chinese Medicine, Zhengzhou 450046, China
- Engineering Technology Research Center for Comprehensive Development and Utilization of Authentic Medicinal Materials in Henan Province, Henan University of Chinese Medicine, Zhengzhou 450046, China
| | - Er-Ping Xu
- Henan University of Chinese Medicine, Zhengzhou 450046, China
- Engineering Technology Research Center for Comprehensive Development and Utilization of Authentic Medicinal Materials in Henan Province, Henan University of Chinese Medicine, Zhengzhou 450046, China
| | - Li-Ping Dai
- Henan University of Chinese Medicine, Zhengzhou 450046, China
- Engineering Technology Research Center for Comprehensive Development and Utilization of Authentic Medicinal Materials in Henan Province, Henan University of Chinese Medicine, Zhengzhou 450046, China
- Correspondence: (L.-P.D.); (Z.-M.W.); Tel.: +86-187-0365-1652 (L.-P.D.)
| | - Zhi-Min Wang
- Engineering Technology Research Center for Comprehensive Development and Utilization of Authentic Medicinal Materials in Henan Province, Henan University of Chinese Medicine, Zhengzhou 450046, China
- National Engineering Laboratory for Quality Control Technology of Chinese Herbal Medicines, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
- Correspondence: (L.-P.D.); (Z.-M.W.); Tel.: +86-187-0365-1652 (L.-P.D.)
| |
Collapse
|
8
|
Jiao Y, Li YZ, Zhang YH, Cui W, Li Q, Xie KL, Yu Y, Yu YH. Lysine demethylase KDM5B down-regulates SIRT3-mediated mitochondrial glucose and lipid metabolism in diabetic neuropathy. Diabet Med 2023; 40:e14964. [PMID: 36130801 DOI: 10.1111/dme.14964] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Revised: 09/06/2022] [Accepted: 09/14/2022] [Indexed: 12/29/2022]
Abstract
BACKGROUND Diabetic peripheral neuropathy (DPN) is a common neurological complication of diabetes mellitus without efficient interventions. Both lysine demethylase 5B (KDM5B) and sirtuin-3 (SIRT3) have been found to regulate islet function and glucose homeostasis. KDM5B was predicted to bind to the SIRT3 promoter by bioinformatics. Here, we investigated whether KDM5B affected DPN development via modulating SIRT3. METHODS The db/db mice and high glucose-stimulated Schwann cells (RSC96) were used as in vivo and in vitro models of DPN, respectively. Glucose level, glucose and insulin tolerance of mice were measured. Neurological function was evaluated by motor nerve conduction velocity (MNCV), tactile allodynia assay and thermal sensitivity assay. Adenosine triphosphate level, oxygen consumption rate, extracellular acidification rate, β-oxidation rate, acetyl-CoA level, acetylation levels and activities of long-chain acyl CoA dehydrogenase (LCAD) and pyruvate dehydrogenase (PDH) were detected. Methyl thiazolyl tetrazolium assay was adopted to determine cell viability. Reactive oxygen species (ROS) production was detected by MitoSox staining. Western blotting for measuring target protein levels. Molecular mechanisms were investigated by co-immunoprecipitine (Co-IP), chromatin immunoprecipitation (ChIP) and luciferase reporter assay. RESULTS KDM5B was up-regulated, while SIRT3 was down-regulated in DPN models. SIRT3 overexpression or AMPK activation ameliorated mitochondrial metabolism dysfunction and ROS overproduction during DPN. KDM5B overexpression triggered mitochondrial metabolism disorder and oxidative stress via directly transcriptional inhibiting SIRT3 expression by demethylating H3K4me3 or indirectly repressing AMPK pathway-regulated SIRT3 expression. CONCLUSION KDM5B contributes to DPN via regulating SIRT3-mediated mitochondrial glucose and lipid metabolism. KDM5B inhibition may be an effective intervention for DPN.
Collapse
Affiliation(s)
- Yang Jiao
- Department of Anesthesiology, Tianjin Medical University General Hospital, Tianjin, People's Republic of China
- Tianjin Institute of Anesthesiology, Tianjin, People's Republic of China
| | - Yi-Ze Li
- Department of Anesthesiology, Tianjin Medical University General Hospital, Tianjin, People's Republic of China
- Tianjin Institute of Anesthesiology, Tianjin, People's Republic of China
| | - Yue-Hua Zhang
- Department of Anesthesiology, Tianjin Medical University General Hospital, Tianjin, People's Republic of China
- Tianjin Institute of Anesthesiology, Tianjin, People's Republic of China
| | - Wei Cui
- Department of Anesthesiology, Tianjin Medical University General Hospital, Tianjin, People's Republic of China
- Tianjin Institute of Anesthesiology, Tianjin, People's Republic of China
| | - Qing Li
- Department of Anesthesiology, Tianjin Medical University General Hospital, Tianjin, People's Republic of China
- Tianjin Institute of Anesthesiology, Tianjin, People's Republic of China
| | - Ke-Liang Xie
- Department of Anesthesiology, Tianjin Medical University General Hospital, Tianjin, People's Republic of China
- Tianjin Institute of Anesthesiology, Tianjin, People's Republic of China
| | - Yang Yu
- Department of Anesthesiology, Tianjin Medical University General Hospital, Tianjin, People's Republic of China
- Tianjin Institute of Anesthesiology, Tianjin, People's Republic of China
| | - Yong-Hao Yu
- Department of Anesthesiology, Tianjin Medical University General Hospital, Tianjin, People's Republic of China
- Tianjin Institute of Anesthesiology, Tianjin, People's Republic of China
| |
Collapse
|
9
|
Patel S, Khan H, Majumdar A. Crosstalk between Sirtuins and Nrf2: SIRT1 activators as emerging treatment for diabetic neuropathy. Metab Brain Dis 2022; 37:2181-2195. [PMID: 35616799 DOI: 10.1007/s11011-022-00956-z] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Accepted: 03/09/2022] [Indexed: 10/18/2022]
Abstract
About 50% of the diabetic patients worldwide suffer from Diabetic peripheral neuropathy (DPN) which is characterized by chronic pain and loss of sensation, frequent foot ulcerations, and risk for amputation. Numerous factors like hyperglycemia, oxidative stress (OS), impaired glucose signaling, inflammatory responses, neuronal cell death are known to be the various mechanisms underlying DACD and DPN. Development of tolerance, insufficient and inadequate relief and potential toxicity of classical antinociceptives still remains a challenge in the clinical setting. Therefore, there is an emerging need for novel treatments which are both without any potential side effects as well as which focus more on the pathophysiological mechanisms underlying the disease. Also, sirtuins are known to deacetylate Nrf2 and contribute to its action of reducing ROS by generation of anti-oxidant enzymes. Therefore, targeting sirtuins could be a favourable therapeutic strategy to treat diabetic neuropathy by reducing ROS and thereby alleviating OS in DPN. In the present review, we outline the potential use of SIRT1 activators as therapeutic alternatives in treating DPN. We have tried to highlight how sirtuins are interlinked with Nrf2 and NF-κB and put forth how SIRT activators could serve as potential therapy for DPN.
Collapse
Affiliation(s)
- Shivangi Patel
- Department of Pharmacology, Bombay College of Pharmacy, Kalina, Santacruz (E), Mumbai, 400098, India
| | - Hasnat Khan
- Department of Pharmacology, Bombay College of Pharmacy, Kalina, Santacruz (E), Mumbai, 400098, India
| | - Anuradha Majumdar
- Department of Pharmacology, Bombay College of Pharmacy, Kalina, Santacruz (E), Mumbai, 400098, India.
| |
Collapse
|
10
|
Wang X, Sun X, Abulizi A, Xu J, He Y, Chen Q, Yan R. Effects of salvianolic acid A on intestinal microbiota and lipid metabolism disorders in Zucker diabetic fatty rats. Diabetol Metab Syndr 2022; 14:135. [PMID: 36127704 PMCID: PMC9490915 DOI: 10.1186/s13098-022-00868-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Accepted: 06/27/2022] [Indexed: 11/13/2022] Open
Abstract
Salvianolic acid A (SalA) is the main water-soluble component isolated from Salvia miltiorrhiza. This study explored the influences of SalA on intestinal microbiota composition and lipid metabolism in Zucker diabetic fatty (ZDF) rats. The 6-week-old male ZDF rats were treated with distilled water (N = 10) and low dose (SalA 0.5 mg/kg/d, N = 10), medium dose (SalA 1 mg/kg/d, N = 10), and high dose (SalA 2 mg/kg/d, N = 10) of SalA, with the male Zucker lean normoglycemic rats of the same week age as controls (given distilled water, N = 10). The blood glucose, body weight, and food intake of rats were examined. After 7 and 8 weeks of continuous administration, oral glucose tolerance test (OGTT) and insulin tolerance test (ITT) were performed, respectively. Serum fasting insulin (FINS), total cholesterol (TC), triglyceride (TG), and free fatty acid (FFA) were determined. Liver tissues were stained using hematoxylin-eosin (HE) and oil red O staining. Fecal samples were analyzed by 16S rRNA gene sequencing. Small intestinal tissues were stained using HE and immunohistochemistry. The tight junction proteins (ZO-1/Occludin/Claudin-1) and serum levels of LPS/TNF-α/IL-6 were evaluated. SalA reduced insulin resistance, liver injury, serum FFA, liver TC and TG levels in ZDF rats, and improved lipid metabolism. After SalA treatment, intestinal microbiota richness and diversity of ZDF rats were promoted. SalA retained the homeostasis of intestinal core microbiota. SalA reduced intestinal epithelial barrier damage, LPS, and inflammatory cytokines in ZDF rats. Overall, SalA can sustain intestinal microbiota balance and improve the lipid metabolism of ZDF rats.
Collapse
Affiliation(s)
- Xufeng Wang
- Department of Gastrointestinal Surgery, Hubei Provincial Hospital of Traditional Chinese Medicine, 856 Luoyu Rd, Hongshan District, Wuhan, 430061, Hubei, China
- Hubei Province Academy of Traditional Chinese Medicine, Wuhan, 430074, Hubei, China
- Affiliated Hospital of Hubei University of Chinese Medicine, Wuhan, 430074, Hubei, China
| | - Xiangjun Sun
- Department of Gastrointestinal Surgery, Hubei Provincial Hospital of Traditional Chinese Medicine, 856 Luoyu Rd, Hongshan District, Wuhan, 430061, Hubei, China
- Hubei Province Academy of Traditional Chinese Medicine, Wuhan, 430074, Hubei, China
- Affiliated Hospital of Hubei University of Chinese Medicine, Wuhan, 430074, Hubei, China
| | - Abulikemu Abulizi
- Department of Gastrointestinal Surgery, Hubei Provincial Hospital of Traditional Chinese Medicine, 856 Luoyu Rd, Hongshan District, Wuhan, 430061, Hubei, China
- Hubei Province Academy of Traditional Chinese Medicine, Wuhan, 430074, Hubei, China
- Affiliated Hospital of Hubei University of Chinese Medicine, Wuhan, 430074, Hubei, China
| | - Jinyao Xu
- Department of Gastrointestinal Surgery, Hubei Provincial Hospital of Traditional Chinese Medicine, 856 Luoyu Rd, Hongshan District, Wuhan, 430061, Hubei, China
- Hubei Province Academy of Traditional Chinese Medicine, Wuhan, 430074, Hubei, China
- Affiliated Hospital of Hubei University of Chinese Medicine, Wuhan, 430074, Hubei, China
| | - Yun He
- Department of Gastrointestinal Surgery, Hubei Provincial Hospital of Traditional Chinese Medicine, 856 Luoyu Rd, Hongshan District, Wuhan, 430061, Hubei, China
- Hubei Province Academy of Traditional Chinese Medicine, Wuhan, 430074, Hubei, China
- Affiliated Hospital of Hubei University of Chinese Medicine, Wuhan, 430074, Hubei, China
| | - Qian Chen
- Department of Gastrointestinal Surgery, Hubei Provincial Hospital of Traditional Chinese Medicine, 856 Luoyu Rd, Hongshan District, Wuhan, 430061, Hubei, China
- Hubei Province Academy of Traditional Chinese Medicine, Wuhan, 430074, Hubei, China
- Affiliated Hospital of Hubei University of Chinese Medicine, Wuhan, 430074, Hubei, China
| | - Ruicheng Yan
- Department of Gastrointestinal Surgery, Hubei Provincial Hospital of Traditional Chinese Medicine, 856 Luoyu Rd, Hongshan District, Wuhan, 430061, Hubei, China.
- Hubei Province Academy of Traditional Chinese Medicine, Wuhan, 430074, Hubei, China.
- Affiliated Hospital of Hubei University of Chinese Medicine, Wuhan, 430074, Hubei, China.
| |
Collapse
|
11
|
Lu Q, Chen B, Liang Q, Wu L, Luo L, Li A, Ouyang W, Wen Z, Liu Y, Lu J, Liu Y, Fan G, Liu Z. Xiaoketongbi Formula vs pregabalin for painful diabetic neuropathy: A single-center, randomized, single-blind, double-dummy, and parallel controlled clinical trial. J Diabetes 2022; 14:551-561. [PMID: 36040201 PMCID: PMC9426277 DOI: 10.1111/1753-0407.13306] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Revised: 07/18/2022] [Accepted: 07/31/2022] [Indexed: 11/29/2022] Open
Abstract
BACKGROUND We assessed the efficacy and safety of the Xiaoketongbi Formula (XF) vs. pregabalin in patients with painful diabetic neuropathy (PDN). METHODS Patients with PDN (n = 68) were included in a single-center, randomized, single-blind, double-dummy, parallel controlled clinical trial. The primary outcome was the change in the Brief Pain Inventory for Diabetic Peripheral Neuropathy (BPI-DPN). Secondary outcomes evaluated included the reduction of BPI-DPN >50%, changes in the numeric rating scale-11 (NRS-11) score for pain, Daily Sleep Interference Diary (DSID), Patient Global Impression of Change (PGIC), nerve conduction velocity (NCV), and adverse events. RESULTS After 10 weeks of treatment, the BPI-DPN score reduced from 42.44 ± 17.56 to 26.47 ± 22.22 and from 52.03 ± 14.30 to 37.85 ± 17.23 in the XF and pregabalin group (Ps < 0.001), respectively. The difference in the absolute change in BPI-DPN score between both groups was -1.79 (95% CI: -9.09, 5.50; p = 0.625). In the XF and pregabalin groups, 44.1% (15/34) and 20.6% (7/34) of patients reported a BPI-DPN reduction >50% (p = 0.038), respectively. There were no significant differences between groups in NRS-11 and DSID (Ps > 0.05). A significantly greater number of patients in the XF group felt "significantly improved" or "improved" than in the pregabalin group (35.3% (12/34) vs. 11.8% (4/34), p = 0.045). The absolute change in motor nerve conduction velocity of the right median nerve was significantly different between both groups (XF group 0.7 ± 2.3 vs. pregabalin group -2.2 ± 4.1, p = 0.004). No serious adverse events were reported in either group. CONCLUSIONS XF is equivalent to pregabalin in reducing pain symptoms and improves the quality of life in patients with PDN. In addition, XF has the potential to improve nerve function by increasing NCV.
Collapse
Affiliation(s)
- Qiyun Lu
- Guangdong Provincial Hospital of Chinese MedicineGuangzhouChina
- The Second Affiliated Hospital of Guangzhou University of Chinese MedicineGuangzhouChina
| | - Benjian Chen
- Guangdong Provincial Hospital of Chinese MedicineGuangzhouChina
- The Second Affiliated Hospital of Guangzhou University of Chinese MedicineGuangzhouChina
| | - Qingshun Liang
- Guangdong Provincial Hospital of Chinese MedicineGuangzhouChina
- The Second Affiliated Hospital of Guangzhou University of Chinese MedicineGuangzhouChina
| | - Liyan Wu
- Guangdong Provincial Hospital of Chinese MedicineGuangzhouChina
- The Second Affiliated Hospital of Guangzhou University of Chinese MedicineGuangzhouChina
| | - Lulu Luo
- Guangdong Provincial Hospital of Chinese MedicineGuangzhouChina
- The Second Affiliated Hospital of Guangzhou University of Chinese MedicineGuangzhouChina
| | - Anxiang Li
- Guangdong Provincial Hospital of Chinese MedicineGuangzhouChina
- The Second Affiliated Hospital of Guangzhou University of Chinese MedicineGuangzhouChina
| | - Wenwei Ouyang
- Guangdong Provincial Hospital of Chinese MedicineGuangzhouChina
- The Second Affiliated Hospital of Guangzhou University of Chinese MedicineGuangzhouChina
| | - Zehuai Wen
- Guangdong Provincial Hospital of Chinese MedicineGuangzhouChina
- The Second Affiliated Hospital of Guangzhou University of Chinese MedicineGuangzhouChina
| | - Yunwei Liu
- Guangzhou University of Traditional Chinese MedicineGuangzhouChina
| | - Jiayan Lu
- Guangzhou University of Traditional Chinese MedicineGuangzhouChina
| | - Yunyi Liu
- Guangzhou Medical UniversityGuangzhouChina
| | - Guanjie Fan
- Guangdong Provincial Hospital of Chinese MedicineGuangzhouChina
- The Second Affiliated Hospital of Guangzhou University of Chinese MedicineGuangzhouChina
| | - Zhenjie Liu
- Guangdong Provincial Hospital of Chinese MedicineGuangzhouChina
- The Second Affiliated Hospital of Guangzhou University of Chinese MedicineGuangzhouChina
| |
Collapse
|
12
|
Yang K, Wang Y, Li YW, Chen YG, Xing N, Lin HB, Zhou P, Yu XP. Progress in the treatment of diabetic peripheral neuropathy. Pharmacotherapy 2022; 148:112717. [DOI: 10.1016/j.biopha.2022.112717] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Revised: 02/08/2022] [Accepted: 02/09/2022] [Indexed: 12/11/2022]
|
13
|
Hou Y, Ding W, Wu P, Liu C, Ding L, Liu J, Wang X. Adipose-derived stem cells alleviate liver injury induced by type 1 diabetes mellitus by inhibiting mitochondrial stress and attenuating inflammation. Stem Cell Res Ther 2022; 13:132. [PMID: 35365229 PMCID: PMC8973806 DOI: 10.1186/s13287-022-02760-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Accepted: 01/11/2022] [Indexed: 01/30/2023] Open
Abstract
Background Type 1 diabetes mellitus (T1D) is a worldwide health priority due to autoimmune destruction and is associated with an increased risk of multiorgan complications. Among these complications, effective interventions for liver injury, which can progress to liver fibrosis and hepatocellular carcinoma, are lacking. Although stem cell injection has a therapeutic effect on T1D, whether it can cure liver injury and the underlying mechanisms need further investigation. Methods Sprague–Dawley rats with streptozotocin (STZ)-induced T1D were treated with adipose-derived stem cell (ADSC) or PBS via the tail vein formed the ADSC group or STZ group. Body weights and blood glucose levels were examined weekly for 6 weeks. RNA-seq and PCR array were used to detect the difference in gene expression of the livers between groups. Results In this study, we found that ADSCs injection alleviated hepatic oxidative stress and injury and improved liver function in rats with T1D; potential mechanisms included cytokine activity, energy metabolism and immune regulation were potentially involved, as determined by RNA-seq. Moreover, ADSC treatment altered the fibroblast growth factor 21 (FGF21) and transforming growth factor β (TGF-β) levels in T1D rat livers, implying its repair capacity. Disordered intracellular energy metabolism, which is closely related to mitochondrial stress and dysfunction, was inhibited by ADSC treatment. PCR array and ingenuity pathway analyses suggested that the ADSC-induced suppression of mitochondrial stress is related to decreased necroptosis and apoptosis. Moreover, mitochondria-related alterations caused liver inflammation, resulting in liver injury involving the T lymphocyte-mediated immune response. Conclusions Overall, these results improve our understanding of the curative effect of ADSCs on T1D complications: ADSCs attenuate liver injury by inhibiting mitochondrial stress (apoptosis and dysfunctional energy metabolism) and alleviating inflammation (inflammasome expression and immune disorder). These results are important for early intervention in liver injury and for delaying the development of liver lesions in patients with T1D. Supplementary Information The online version contains supplementary material available at 10.1186/s13287-022-02760-z.
Collapse
Affiliation(s)
- Yanli Hou
- Endocrine and Metabolic Diseases Hospital of Shandong First Medical University, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China
| | - Wenyu Ding
- Endocrine and Metabolic Diseases Hospital of Shandong First Medical University, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China
| | - Peishan Wu
- Endocrine and Metabolic Diseases Hospital of Shandong First Medical University, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China.,Shandong First Medical University, Jinan, China
| | - Changqing Liu
- Endocrine and Metabolic Diseases Hospital of Shandong First Medical University, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China
| | - Lina Ding
- Endocrine and Metabolic Diseases Hospital of Shandong First Medical University, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China
| | - Junjun Liu
- Endocrine and Metabolic Diseases Hospital of Shandong First Medical University, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China
| | - Xiaolei Wang
- Endocrine and Metabolic Diseases Hospital of Shandong First Medical University, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China.
| |
Collapse
|
14
|
Guo Z, Tuo H, Tang N, Liu FY, Ma SQ, An P, Yang D, Wang MY, Fan D, Yang Z, Tang QZ. Neuraminidase 1 deficiency attenuates cardiac dysfunction, oxidative stress, fibrosis, inflammatory via AMPK-SIRT3 pathway in diabetic cardiomyopathy mice. Int J Biol Sci 2022; 18:826-840. [PMID: 35002528 PMCID: PMC8741837 DOI: 10.7150/ijbs.65938] [Citation(s) in RCA: 34] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Accepted: 11/24/2021] [Indexed: 11/30/2022] Open
Abstract
Diabetic cardiomyopathy (DCM) is associated with oxidative stress and augmented inflammation in the heart. Neuraminidases (NEU) 1 has initially been described as a lysosomal protein which plays a role in the catabolism of glycosylated proteins. We investigated the role of NEU1 in the myocardium in diabetic heart. Streptozotocin (STZ) was injected intraperitoneally to induce diabetes in mice. Neonatal rat ventricular myocytes (NRVMs) were used to verify the effect of shNEU1 in vitro. NEU1 is up-regulated in cardiomyocytes under diabetic conditions. NEU1 inhibition alleviated oxidative stress, inflammation and apoptosis, and improved cardiac function in STZ-induced diabetic mice. Furthermore, NEU1 inhibition also attenuated the high glucose-induced increased reactive oxygen species generation, inflammation and, cell death in vitro. ShNEU1 activated Sirtuin 3 (SIRT3) signaling pathway, and SIRT3 deficiency blocked shNEU1-mediated cardioprotective effects in vitro. More importantly, we found AMPKα was responsible for the elevation of SIRT3 expression via AMPKα-deficiency studies in vitro and in vivo. Knockdown of LKB1 reversed the effect elicited by shNEU1 in vitro. In conclusion, NEU1 inhibition activates AMPKα via LKB1, and subsequently activates sirt3, thereby regulating fibrosis, inflammation, apoptosis and oxidative stress in diabetic myocardial tissue.
Collapse
Affiliation(s)
- Zhen Guo
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan 430060, RP China.,Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan, RP China
| | - Hu Tuo
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan 430060, RP China.,Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan, RP China
| | - Nan Tang
- The Affiliated Suqian Hospital of Xuzhou Medical University, Suqian 223800, RP China.,People's Hospital affiliated to Nanjing Drama Tower Hospital Group, Suqian 223800, RP China
| | - Fang-Yuan Liu
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan 430060, RP China.,Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan, RP China
| | - Shu-Qing Ma
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan 430060, RP China.,Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan, RP China
| | - Peng An
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan 430060, RP China.,Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan, RP China
| | - Dan Yang
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan 430060, RP China.,Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan, RP China
| | - Min-Yu Wang
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan 430060, RP China.,Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan, RP China
| | - Di Fan
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan 430060, RP China.,Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan, RP China
| | - Zheng Yang
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan 430060, RP China.,Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan, RP China
| | - Qi-Zhu Tang
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan 430060, RP China.,Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan, RP China
| |
Collapse
|
15
|
Dewanjee S, Vallamkondu J, Kalra RS, Chakraborty P, Gangopadhyay M, Sahu R, Medala V, John A, Reddy PH, De Feo V, Kandimalla R. The Emerging Role of HDACs: Pathology and Therapeutic Targets in Diabetes Mellitus. Cells 2021; 10:1340. [PMID: 34071497 PMCID: PMC8228721 DOI: 10.3390/cells10061340] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2021] [Revised: 05/22/2021] [Accepted: 05/26/2021] [Indexed: 12/22/2022] Open
Abstract
Diabetes mellitus (DM) is one of the principal manifestations of metabolic syndrome and its prevalence with modern lifestyle is increasing incessantly. Chronic hyperglycemia can induce several vascular complications that were referred to be the major cause of morbidity and mortality in DM. Although several therapeutic targets have been identified and accessed clinically, the imminent risk of DM and its prevalence are still ascending. Substantial pieces of evidence revealed that histone deacetylase (HDAC) isoforms can regulate various molecular activities in DM via epigenetic and post-translational regulation of several transcription factors. To date, 18 HDAC isoforms have been identified in mammals that were categorized into four different classes. Classes I, II, and IV are regarded as classical HDACs, which operate through a Zn-based mechanism. In contrast, class III HDACs or Sirtuins depend on nicotinamide adenine dinucleotide (NAD+) for their molecular activity. Functionally, most of the HDAC isoforms can regulate β cell fate, insulin release, insulin expression and signaling, and glucose metabolism. Moreover, the roles of HDAC members have been implicated in the regulation of oxidative stress, inflammation, apoptosis, fibrosis, and other pathological events, which substantially contribute to diabetes-related vascular dysfunctions. Therefore, HDACs could serve as the potential therapeutic target in DM towards developing novel intervention strategies. This review sheds light on the emerging role of HDACs/isoforms in diabetic pathophysiology and emphasized the scope of their targeting in DM for constituting novel interventional strategies for metabolic disorders/complications.
Collapse
Affiliation(s)
- Saikat Dewanjee
- Advanced Pharmacognosy Research Laboratory, Department of Pharmaceutical Technology, Jadavpur University, Kolkata 700032, West Bengal, India;
| | | | - Rajkumar Singh Kalra
- AIST-INDIA DAILAB, National Institute of Advanced Industrial Science & Technology (AIST), Higashi 1-1-1, Tsukuba 305 8565, Japan;
| | - Pratik Chakraborty
- Advanced Pharmacognosy Research Laboratory, Department of Pharmaceutical Technology, Jadavpur University, Kolkata 700032, West Bengal, India;
| | - Moumita Gangopadhyay
- School of Life Science and Biotechnology, ADAMAS University, Barasat, Kolkata 700126, West Bengal, India;
| | - Ranabir Sahu
- Department of Pharmaceutical Technology, University of North Bengal, Darjeeling 734013, West Bengal, India;
| | - Vijaykrishna Medala
- Applied Biology, CSIR-Indian Institute of Technology, Uppal Road, Tarnaka, Hyderabad 500007, Telangana, India;
| | - Albin John
- Internal Medicine, Texas Tech University Health Sciences Center, Lubbock, TX 79430, USA; (A.J.); (P.H.R.)
| | - P. Hemachandra Reddy
- Internal Medicine, Texas Tech University Health Sciences Center, Lubbock, TX 79430, USA; (A.J.); (P.H.R.)
- Neuroscience & Pharmacology, Texas Tech University Health Sciences Center, Lubbock, TX 79430, USA
- Neurology, Departments of School of Medicine, Texas Tech University Health Sciences Center, Lubbock, TX 79430, USA
- Public Health Department of Graduate School of Biomedical Sciences, Texas Tech University Health Sciences Center, Lubbock, TX 79430, USA
- Department of Speech, Language and Hearing Sciences, School Health Professions, Texas Tech University Health Sciences Center, Lubbock, TX 79430, USA
| | - Vincenzo De Feo
- Department of Pharmacy, University of Salerno, 84084 Fisciano, Italy
| | - Ramesh Kandimalla
- Applied Biology, CSIR-Indian Institute of Technology, Uppal Road, Tarnaka, Hyderabad 500007, Telangana, India;
- Department of Biochemistry, Kakatiya Medical College, Warangal 506007, Telangana, India
| |
Collapse
|
16
|
Lai J, Qian Q, Ding Q, Zhou L, Fu A, Du Z, Wang C, Song Z, Li S, Dou X. Activation of AMP-Activated Protein Kinase-Sirtuin 1 Pathway Contributes to Salvianolic Acid A-Induced Browning of White Adipose Tissue in High-Fat Diet Fed Male Mice. Front Pharmacol 2021; 12:614406. [PMID: 34122060 PMCID: PMC8193940 DOI: 10.3389/fphar.2021.614406] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Accepted: 05/18/2021] [Indexed: 12/21/2022] Open
Abstract
Background: Salvianolic acid A (Sal A), a natural polyphenolic compound extracted from Radix Salvia miltiorrhiza (Danshen), exhibits exceptional pharmacological activities against cardiovascular diseases. While a few studies have reported anti-obesity properties of Sal A, the underlying mechanisms are largely unknown. Given the prevalence of obesity and promising potential of browning of white adipose tissue to combat obesity, recent research has focused on herbal ingredients that may promote browning and increase energy expenditure. Purpose: The present study was designed to investigate the protective antiobesity mechanisms of Sal A, in part through white adipose browning. Methods: Both high-fat diet (HFD)-induced obese (DIO) male mice model and fully differentiated C3H10T1/2 adipocytes from mouse embryo fibroblasts were employed in this study. Sal A (20 and 40 mg/kg) was administrated to DIO mice by intraperitoneal injection for 13-weeks. Molecular mechanisms mediating effects of Sal A were evaluated. Resluts: Sal A treatment significantly attenuated HFD-induced weight gain and lipid accumulation in epididymal fat pad. Uncoupling protein 1 (UCP-1), a specialized thermogenic protein and marker for white adipocyte browning, was significantly induced by Sal A treatment in both white adipose tissues and cultured adipocytes. Further mechanistic investigations revealed that Sal A robustly reversed HFD-decreased AMP-activated protein kinase (AMPK) phosphorylation and sirtuin 1 (SIRT1) expression in mice. Genetically silencing either AMPK or SIRT1 using siRNA abolished UCP-1 upregulation by Sal A. AMPK silencing significantly blocked Sal A-increased SIRT1 expression, while SIRT1 silencing did not affect Sal A-upregulated phosphorylated-AMPK. These findings indicate that AMPK was involved in Sal A-increased SIRT1. Conclusion: Sal A increases white adipose tissue browning in HFD-fed male mice and in cultured adipocytes. Thus, Sal is a potential natural therapeutic compound for treating and/or preventing obesity.
Collapse
Affiliation(s)
- Jianfei Lai
- School of Public Health, Zhejiang Chinese Medical University, Hangzhou, China.,School of Life Science, Zhejiang Chinese Medical University, Hangzhou, China
| | - Qianyu Qian
- School of Life Science, Zhejiang Chinese Medical University, Hangzhou, China.,Molecular Medicine Institute, Zhejiang Chinese Medical University, Hangzhou, China
| | - Qinchao Ding
- School of Public Health, Zhejiang Chinese Medical University, Hangzhou, China.,School of Life Science, Zhejiang Chinese Medical University, Hangzhou, China.,College of Animal Science, Zhejiang University, Hangzhou, China
| | - Li Zhou
- School of Life Science, Zhejiang Chinese Medical University, Hangzhou, China
| | - Ai Fu
- School of Life Science, Zhejiang Chinese Medical University, Hangzhou, China
| | - Zhongyan Du
- School of Life Science, Zhejiang Chinese Medical University, Hangzhou, China
| | - Cui Wang
- School of Life Science, Zhejiang Chinese Medical University, Hangzhou, China.,Molecular Medicine Institute, Zhejiang Chinese Medical University, Hangzhou, China
| | - Zhenyuan Song
- Department of Kinesiology and Nutrition, University of Illinois at Chicago, Chicago, IL, United States
| | - Songtao Li
- School of Public Health, Zhejiang Chinese Medical University, Hangzhou, China.,Molecular Medicine Institute, Zhejiang Chinese Medical University, Hangzhou, China
| | - Xiaobing Dou
- School of Life Science, Zhejiang Chinese Medical University, Hangzhou, China.,Molecular Medicine Institute, Zhejiang Chinese Medical University, Hangzhou, China
| |
Collapse
|
17
|
Bioactive Components of Salvia and Their Potential Antidiabetic Properties: A Review. Molecules 2021; 26:molecules26103042. [PMID: 34065175 PMCID: PMC8161164 DOI: 10.3390/molecules26103042] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Revised: 04/19/2021] [Accepted: 04/20/2021] [Indexed: 11/24/2022] Open
Abstract
The utilization of therapeutic plants is expanding around the globe, coupled with the tremendous expansion of alternative medicine and growing demand in health treatment. Plants are applied in pharmaceuticals to preserve and expand health—physically, mentally and as well as to treat particular health conditions and afflictions. There are more than 600 families of plants identified so far. Among the plants that are often studied for their health benefit include the genus of Salvia in the mint family, Lamiaceae. This review aims to determine the bioactive components of Salvia and their potential as antidiabetic agents. The search was conducted using three databases (PubMed, EMBASE and Scopus), and all relevant articles that are freely available in the English language were extracted within 10 years (2011–2021). Salvia spp. comprises many biologically active components that can be divided into monoterpenes, diterpenes, triterpenes, and phenolic components, but only a few of these have been studied in-depth for their health benefit claims. The most commonly studied bioactive component was salvianolic acids. Interestingly, S. miltiorrhiza is undoubtedly the most widely studied Salvia species in terms of its effectiveness as an antidiabetic agent. In conclusion, we hope that this review stimulates more studies on bioactive components from medicinal plants, not only on their potential as antidiabetic agents but also for other possible health benefits.
Collapse
|
18
|
Li S, Qian Q, Ying N, Lai J, Feng L, Zheng S, Jiang F, Song Q, Chai H, Dou X. Activation of the AMPK-SIRT1 pathway contributes to protective effects of Salvianolic acid A against lipotoxicity in hepatocytes and NAFLD in mice. Front Pharmacol 2020; 11:560905. [PMID: 33328983 PMCID: PMC7734334 DOI: 10.3389/fphar.2020.560905] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Accepted: 09/30/2020] [Indexed: 12/15/2022] Open
Abstract
Background: Salvianolic acid A (Sal A), a natural polyphenol compound extracted from Radix Salvia miltiorrhiza (known as Danshen in China), possesses a variety of potential pharmacological activities. The aim of this study is to determine mechanisms of hepatoprotective effects of Sal A against lipotoxicity both in cultured hepatocytes and in a mouse model of fatty liver disease. Methods: High-fat and high-carbohydrate diet (HFCD)-fed C57BL/6J mice were employed to establish hepatic lipotoxicity in a mouse model. Two doses of Sal A were administered every other day via intraperitoneal injection (20 and 40 mg/kg BW, respectively). After a 10-week intervention, liver injury was detected by immunohistochemical and biochemical analyses. For in vitro studies, we used HepG2, a human hepatoma cell line, and exposed them to palmitic acid to induce lipotoxicity. The protective effects of Sal A on palmitic acid-induced lipotoxicity were examined in Sal A-pretreated HepG2 cells. Results: Sal A treatments attenuated body weight gain, liver injury, and hepatic steatosis in mice exposed to HFCD. Sal A pretreatments ameliorated palmitic acid-induced cell death but did not reverse effects of HFCD- or palmitate-induced activations of JNK, ERK1/2, and PKA. Induction of p38 phosphorylation was significantly reversed by Sal A in HFCD-fed mice but not in palmitate-treated HepG2 cells. However, Sal A rescued hepatic AMP-activated protein kinase (AMPK) suppression and sirtuin 1 (SIRT1) downregulation by both HFCD feeding in mice and exposure to palmitate in HepG2 cells. Sal A dose-dependently up-regulated p-AMPK and SIRT1 protein levels. Importantly, siRNA silencing of either AMPK or SIRT1 gene expression abolished the protective effects of Sal A on lipotoxicity. Moreover, while AMPK silencing blocked Sal A-induced SIRT1, silencing of SIRT1 had no effect on Sal A-triggered AMPK activation, suggesting SIRT1 upregulation by Sal A is mediated by AMPK activation. Conclusion: Our data uncover a novel mechanism for hepatoprotective effects of Sal A against lipotoxicity both in livers from HFCD-fed mice and palmitic acid-treated hepatocytes.
Collapse
Affiliation(s)
- Songtao Li
- College of Basic Medicine and Public Health, Zhejiang Chinese Medical University, Hangzhou, China
- Molecular Medicine Institute, Zhejiang Chinese Medical University, Hangzhou, China
| | - Qianyu Qian
- Molecular Medicine Institute, Zhejiang Chinese Medical University, Hangzhou, China
- College of Life Science, Zhejiang Chinese Medical University, Hangzhou, China
| | - Na Ying
- College of Life Science, Zhejiang Chinese Medical University, Hangzhou, China
| | - Jianfei Lai
- College of Life Science, Zhejiang Chinese Medical University, Hangzhou, China
| | - Luyan Feng
- College of Life Science, Zhejiang Chinese Medical University, Hangzhou, China
| | - Sitong Zheng
- College of Life Science, Zhejiang Chinese Medical University, Hangzhou, China
| | - Fusheng Jiang
- Molecular Medicine Institute, Zhejiang Chinese Medical University, Hangzhou, China
- College of Life Science, Zhejiang Chinese Medical University, Hangzhou, China
| | - Qing Song
- Molecular Medicine Institute, Zhejiang Chinese Medical University, Hangzhou, China
- College of Life Science, Zhejiang Chinese Medical University, Hangzhou, China
| | - Hui Chai
- Molecular Medicine Institute, Zhejiang Chinese Medical University, Hangzhou, China
- College of Life Science, Zhejiang Chinese Medical University, Hangzhou, China
| | - Xiaobing Dou
- Molecular Medicine Institute, Zhejiang Chinese Medical University, Hangzhou, China
- College of Life Science, Zhejiang Chinese Medical University, Hangzhou, China
| |
Collapse
|
19
|
Network Pharmacology-Based Identification of the Mechanisms of Shen-Qi Compound Formula in Treating Diabetes Mellitus. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2020; 2020:5798764. [PMID: 32595730 PMCID: PMC7292981 DOI: 10.1155/2020/5798764] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Revised: 02/20/2020] [Accepted: 04/09/2020] [Indexed: 12/21/2022]
Abstract
Aim The purpose of this research is to identify the mechanisms of Shen-Qi compound formula (SQC), a traditional Chinese medicine (TCM), for treating diabetes mellitus (DM) using system pharmacology. Methods The active components and therapeutic targets were identified, and these targets were analyzed using gene ontology (GO) enrichment analysis, Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analysis, and protein-protein interaction (PPI) analysis. Finally, an integrated pathway was constructed to show the mechanisms of SQC. Results A total of 282 active components and 195 targets were identified through a database search. The component-target network was constructed, and the key components were screened out according to their degree. Through the GO, PPI, and KEGG analyses, the mechanism network of SQC treating DM was constructed. Conclusions This study shows that the mechanisms of SQC treating DM are related to various pathways and targets. This study provides a good foundation and basis for further in-depth verification and clinical application.
Collapse
|
20
|
Neuroprotective Effect of Salvianolic Acid A against Diabetic Peripheral Neuropathy through Modulation of Nrf2. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2020; 2020:6431459. [PMID: 32184918 PMCID: PMC7063195 DOI: 10.1155/2020/6431459] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Revised: 01/22/2020] [Accepted: 01/30/2020] [Indexed: 01/01/2023]
Abstract
Oxidative stress has been recognized as the contributor to diabetic peripheral neuropathy (DPN). Antioxidant strategies have been most widely explored; nevertheless, whether antioxidants alone prevent DPN still remains inconclusive. In the present study, we established an in vitro DPN cell model for drug screening using Schwann RSC96 cells under high glucose (HG) stimulation, and we found that salvianolic acid A (SalA) mitigated HG-induced injury evidenced by cell viability and myelination. Mechanistically, SalA exhibited strong antioxidative effects by inhibiting 1,1-diphenyl-2-picrylhydrazyl (DPPH) and reducing reactive oxygen species (ROS), malondialdehyde (MDA), and oxidized glutathione (GSSG) content, as well as upregulating antioxidative enzyme mRNA expression. In addition, SalA significantly extenuated neuroinflammation with downregulated inflammatory factor mRNA expression. Furthermore, SalA improved the mitochondrial function of HG-injured Schwann cells by scavenging mitochondrial ROS, decreasing mitochondrial membrane potential (MMP), and enhancing ATP production, as well as upregulating oxidative phosphorylation gene expression. More importantly, we identified nuclear factor-E2-related factor 2 (Nrf2) as the upstream regulator which mediated protective effects of SalA on DPN. SalA directly bound to the Kelch domain of Kelch-like ECH-associated protein 1 (Keap1) and thus disrupted the interaction of Nrf2 and Keap1 predicted by LibDock of Discovery Studio. Additionally, SalA significantly inhibited Nrf2 promoter activity and downregulated Nrf2 mRNA expression but without affecting Nrf2 protein expression. Interestingly, SalA upregulated the nuclear Nrf2 expression and promoted Nrf2 nuclear translocation by high content screening assay, which was confirmed to be involved in its antiglucotoxicity effect by the knockdown of Nrf2 in RSC96 cells. In KK-Ay mice, we demonstrated that SalA could effectively improve the abnormal glucose and lipid metabolism and significantly protect against DPN by increasing the mechanical withdrawal threshold and sciatic nerve conduction velocity and restoring the ultrastructural impairment of the injured sciatic nerve induced by diabetes. Hence, SalA protected against DPN by antioxidative stress, attenuating neuroinflammation, and improving mitochondrial function via Nrf2. SalA may be prospective therapeutics for treating DPN.
Collapse
|
21
|
Du G, Song J, Du L, Zhang L, Qiang G, Wang S, Yang X, Fang L. Chemical and pharmacological research on the polyphenol acids isolated from Danshen: A review of salvianolic acids. ADVANCES IN PHARMACOLOGY (SAN DIEGO, CALIF.) 2020; 87:1-41. [PMID: 32089230 DOI: 10.1016/bs.apha.2019.12.004] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Danshen, the dried root of Salvia miltiorrhiza Bge, is a common medicinal herb in Traditional Chinese Medicine, which has been used for the treatment of a number of diseases for thousands of years. More than 2000 years ago, the Chinese early pharmacy monograph "Shennong Materia Medica" recorded that Danshen could be used for the treatment of gastrointestinal diseases, cardiovascular diseases, certain gynecological diseases, etc. Since then, Danshen has been widely used clinically in many different prescriptions for many different diseases, especially for the treatment of cardiovascular diseases. Nowadays, many pharmacological studies about the water-soluble components from Danshen have been reported, especially salvianolic acids. It turned out that salvianolic acids showed strong anti-lipid peroxidation and anti-thrombic activities, and among them, SalAA and SalAB were the most potent. This review focused on the achievements in research of salvianolic acids regarding their bioactivities and pharmacological effects. These studies not only shed light on the water-soluble active components of Danshen and their mechanisms at the molecular level, but also provided theoretical information for the development of new medicines from Danshen for the treatment of cardiovascular and cerebrovascular diseases, inflammatory diseases, metabolic diseases, etc.
Collapse
Affiliation(s)
- Guanhua Du
- Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China.
| | - Junke Song
- Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
| | - Lida Du
- Department of Surgery, University of Toronto, Toronto, ON, Canada
| | - Li Zhang
- Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
| | - Guifen Qiang
- Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
| | - Shoubao Wang
- Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
| | - Xiuying Yang
- Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
| | - Lianhua Fang
- Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
| |
Collapse
|
22
|
Jia Q, Zhu R, Tian Y, Chen B, Li R, Li L, Wang L, Che Y, Zhao D, Mo F, Gao S, Zhang D. Salvia miltiorrhiza in diabetes: A review of its pharmacology, phytochemistry, and safety. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2019; 58:152871. [PMID: 30851580 DOI: 10.1016/j.phymed.2019.152871] [Citation(s) in RCA: 86] [Impact Index Per Article: 17.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2018] [Revised: 02/01/2019] [Accepted: 02/17/2019] [Indexed: 05/24/2023]
Abstract
BACKGROUND Salvia miltiorrhiza (SM), one of the frequently used herbs in traditional Chinese medicine (TCM), has now attracted rising interests for a possible alternative in the management of diabetes. This review is aimed to providing a comprehensive perspective of SM in phytochemical constituents, pharmacological activities against diabetes and its complications, and safety. METHODS A comprehensive search of published literatures was conducted to locate original publications pertaining to SM and diabetes till the end of 2017 using PubMed, China National Knowledge Infrastructure, National Science and Technology Library, China Science and Technology Journal Database, and Web of Science database. The main inquiry was used for the presence of the following keywords in various combinations in the titles and abstracts: Salvia miltiorrhiza, diabetes, obesity, phytochemistry, pharmacology, and safety. About 200 research papers and reviews were consulted. RESULTS SM exhibited anti-diabetic activities by treating macro- and micro-vascular diseases in preclinical experiments and clinical trials through an improvement of redox homeostasis and inhibition of apoptosis and inflammation via the regulation of Wnt/β-catenin, TSP-1/TGF-β1/STAT3, JNK/PI3K/Akt, kinin B2 receptor-Akt-GSK-3β, AMPKβ/PGC-1α/Sirt3, Akt/AMPK, TXNIP/NLRP3, TGF-β1/NF-κB, mineralocorticoid receptor/Na+/K+-ATPase, AGEs/RAGE, Nrf2/Keap1, CaMKKβ/AMPK, AMPK/ACC, IRS-1/PI3K signaling pathways, and modulation of K+-Ca2+ channels, as well as influence of VEGF, NOS, AGEs, PPAR expression and hIAPP aggregation. The antidiabetic effects of this herb may be related to its TCM characters of improving blood circulation and reliving blood stasis. The main ingredients of SM included salvianolic acids and diterpenoid tanshinones, which have been well studied in the diabetic animals. Acute and subacute toxicity studies supported the notion that SM is well tolerated. CONCLUSION SM may offer a new strategy for prevention and treatment of diabetes and its complications that stimulates extensive research into identifying potential anti-diabetic compounds and fractions as well as exploring the underlying mechanisms of this herb. Further scientific evidences are still required from well-designed preclinical experiments and clinical trials on its anti-diabetic effects and safety.
Collapse
Affiliation(s)
- Qiangqiang Jia
- Diabetes Research Center, Traditional Chinese Medicine School, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Ruyuan Zhu
- Diabetes Research Center, Traditional Chinese Medicine School, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Yimiao Tian
- Diabetes Research Center, Traditional Chinese Medicine School, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Beibei Chen
- Diabetes Research Center, Traditional Chinese Medicine School, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Rui Li
- Diabetes Research Center, Traditional Chinese Medicine School, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Lin Li
- Diabetes Research Center, Traditional Chinese Medicine School, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Lili Wang
- School of Chinese Material Medica, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Yiwen Che
- The Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing 100700, China
| | - Dandan Zhao
- Diabetes Research Center, Traditional Chinese Medicine School, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Fangfang Mo
- Diabetes Research Center, Traditional Chinese Medicine School, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Sihua Gao
- Diabetes Research Center, Traditional Chinese Medicine School, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Dongwei Zhang
- Diabetes Research Center, Traditional Chinese Medicine School, Beijing University of Chinese Medicine, Beijing 100029, China.
| |
Collapse
|
23
|
Guo N, Li C, Liu Q, Liu S, Huan Y, Wang X, Bai G, Yang M, Sun S, Xu C, Shen Z. Maltol, a food flavor enhancer, attenuates diabetic peripheral neuropathy in streptozotocin-induced diabetic rats. Food Funct 2019; 9:6287-6297. [PMID: 30411095 DOI: 10.1039/c8fo01964a] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
SCOPE Maltol (3-hydroxy-2-methy-4-pyrone), a potent antioxidative agent, typically is used to enhance flavor and preserve food. This study evaluated its effects on preventing diabetic peripheral neuropathy (DPN) in streptozotocin (STZ)-induced diabetic rats and explored its mechanisms. METHODS AND RESULTS We intraperitoneally injected Sprague-Dawley (SD) rats with STZ (65 mg kg-1, ip) and treated the rats with different doses of maltol after 4 weeks of injection. During treatment, we evaluated motor nerve conduction velocity (MNCV) and thermal and mechanical hyperalgesia and assayed the oxidative stress, Na+-K+-ATPase activity, and apoptosis. Repeated treatment with maltol for 12 weeks significantly improved thermal and mechanical hyperalgesia, increased the MNCV, elevated the Na+-K+-ATPase activity, and ameliorated oxidative stress and apoptosis in STZ-induced diabetic rats. We coincubated RSC96 cells, a Schwann cell line, with maltol and hydrogen peroxide (H2O2, 0.6 mM). Evidently, maltol increased cell viability and inhibited apoptosis after injury by H2O2. CONCLUSIONS Maltol was demonstrated to prevent DPN development and may provide a new alternative for the treatment of DPN.
Collapse
Affiliation(s)
- Nan Guo
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China.
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
24
|
Sun J, Xu W, Song J, Li X, Guo Q, Sun W, Han B, Du G, Jing F. A Novel UPLC-MS/MS Method for the Determination of Salvianolic Acid A in Rat Urine, Feces, and Bile and its Application to Excretion Study. CURR PHARM ANAL 2019. [DOI: 10.2174/1573412914666171211160018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Background:
Salvianolic acid A (SAA) is a polyphenolic acid extracted from Salvia miltiorrhiza
Bunge. It showed protective effect against diabetic complications after oral administration with a
low bioavailability of 1.42%. Attempts have been made to develop it into a new medication. Intracorporal
process of SAA is indistinct and no report regarding the excretion is available. Our preliminary experiment
revealed that previous reported methods were unsuitable for the excretion study due to the
serious matrix effect.
Methods:
To better clarify its pharmacokinetics and avoid the interference of complex endogenous
substances, a sensitive UPLC-MS/MS method with a better resolution was developed for the excretion
study of SAA for the first time. The analytes were separated by reversed-phase chromatography with
acetonitrile-water (containing 0.1% formic acid) gradient elution. The mass spectrometer was operated
in the negative ESI mode and multiple reaction monitoring mode.
Results:
This method was linear over the concentration range of 2.5-100, 5-100 and 5-100 ng/mL in
urine, feces and bile, respectively. The accuracy, precision, stability, recovery and matrix effect were
satisfactory in all matrices examined. The validated method was successfully applied to an excretion
study in rats. After oral administration of 20 mg/kg, the average accumulated excretion amount of SAA
in urine, feces and bile were 99.80, 32046.30 and 161.03 ng, respectively.
Conclusion:
A quick but low elimination was observed. The date is useful for the clinical trial design of
SAA.
Collapse
Affiliation(s)
- Jialin Sun
- Department of Pharmacy, The Affiliated Hospital of Qingdao University, Qingdao 266003, China
| | - Wen Xu
- Department of Pharmacy, The Affiliated Hospital of Qingdao University, Qingdao 266003, China
| | - Junke Song
- Beijing Key Laboratory of Drug Target Identification and Drug Screening, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, China
| | - Xiao Li
- Department of Pharmacy, The Affiliated Hospital of Qingdao University, Qingdao 266003, China
| | - Qie Guo
- Department of Pharmacy, The Affiliated Hospital of Qingdao University, Qingdao 266003, China
| | - Wei Sun
- Department of Pharmacy, The Affiliated Hospital of Qingdao University, Qingdao 266003, China
| | - Bing Han
- Department of Pharmacy, The Affiliated Hospital of Qingdao University, Qingdao 266003, China
| | - Guanhua Du
- Beijing Key Laboratory of Drug Target Identification and Drug Screening, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, China
| | - Fanbo Jing
- Department of Pharmacy, The Affiliated Hospital of Qingdao University, Qingdao 266003, China
| |
Collapse
|
25
|
Effects of Mitochondrial Dysfunction via AMPK/PGC-1 α Signal Pathway on Pathogenic Mechanism of Diabetic Peripheral Neuropathy and the Protective Effects of Chinese Medicine. Chin J Integr Med 2019; 25:386-394. [DOI: 10.1007/s11655-018-2579-0] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2018] [Accepted: 05/14/2018] [Indexed: 01/12/2023]
|
26
|
Sun J, Song J, Zhang W, Jing F, Xu W, Leng P, Quan X, Du G, Sui Z. Some pharmacokinetic parameters of salvianolic acid A following single-dose oral administration to rats. PHARMACEUTICAL BIOLOGY 2018; 56:399-406. [PMID: 30122142 PMCID: PMC6130628 DOI: 10.1080/13880209.2018.1491998] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
CONTEXT Salvianolic acid A (Sal A) is a hydrophilic bioactive compound isolated from Salvia miltiorrhiza Bunge (Lamiaceae). It exerts beneficial effects after oral administration on diabetic complications. OBJECTIVE To systematically study the absorption, distribution and excretion of Sal A after single-dose oral administration. MATERIALS AND METHODS Animal experiments were conducted in Sprague-Dawley rats. Plasma was sampled at designated times after oral doses of 5, 10 and 20 mg/kg, and an intravenous dose of 50 μg/kg. Tissues were harvested at 10, 60 and 120 min postdosing. Bile, urine and feces were collected at specified intervals before and after dosing. Absorption and distribution characteristics were analyzed by LC-MS, and excretion characteristics were analyzed by UPLC-MS/MS. The Caco-2 cell model was applied to investigate potential mechanisms. RESULTS The Cmax (5 mg/kg: 31.53 μg/L; 10 mg/kg: 57.39 μg/L; 20 mg/kg: 111.91 μg/L) of Sal A increased linearly with doses (r> 0.99). The calculated absolute bioavailability was 0.39-0.52%. Transport experiment showed poor permeability and the ratio of PB-A to PA-B was 3.13-3.97. The highest concentration of Sal A was achieved in stomach followed by small intestine and liver, and it could also be detected in brain homogenate. Approximately 0.775% of its administered dose was excreted via feces, followed by bile (0.00373%) and urine (0.00252%). DISCUSSION AND CONCLUSIONS These results support the future development of Sal A as an oral drug for the treatment of diabetic complications. Future research should be conducted to investigate the reason for its poor bioavailability and improve this situation.
Collapse
Affiliation(s)
- Jialin Sun
- Department of Pharmacy, The Affiliated Hospital of Qingdao University, Qingdao, People’s Republic of China
- Beijing Key Laboratory of Drug Target Identification and Drug Screening, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, People’s Republic of China
| | - Junke Song
- Beijing Key Laboratory of Drug Target Identification and Drug Screening, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, People’s Republic of China
| | - Wen Zhang
- Beijing Key Laboratory of Drug Target Identification and Drug Screening, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, People’s Republic of China
| | - Fanbo Jing
- Department of Pharmacy, The Affiliated Hospital of Qingdao University, Qingdao, People’s Republic of China
| | - Wen Xu
- Department of Pharmacy, The Affiliated Hospital of Qingdao University, Qingdao, People’s Republic of China
| | - Ping Leng
- Department of Pharmacy, The Affiliated Hospital of Qingdao University, Qingdao, People’s Republic of China
| | - Xianghua Quan
- Department of Pharmacy, The Affiliated Hospital of Qingdao University, Qingdao, People’s Republic of China
| | - Guanhua Du
- Beijing Key Laboratory of Drug Target Identification and Drug Screening, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, People’s Republic of China
- CONTACT Guanhua Du Beijing Key Laboratory of Drug Target Identification and Drug Screening, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing100050, People’s Republic of China
| | - Zhongguo Sui
- Department of Pharmacy, The Affiliated Hospital of Qingdao University, Qingdao, People’s Republic of China
- Zhongguo Sui Department of Pharmacy, The Affiliated Hospital of Qingdao University, Qingdao266003, People’s Republic of China
| |
Collapse
|
27
|
Dewanjee S, Das S, Das AK, Bhattacharjee N, Dihingia A, Dua TK, Kalita J, Manna P. Molecular mechanism of diabetic neuropathy and its pharmacotherapeutic targets. Eur J Pharmacol 2018; 833:472-523. [DOI: 10.1016/j.ejphar.2018.06.034] [Citation(s) in RCA: 117] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2017] [Revised: 06/15/2018] [Accepted: 06/26/2018] [Indexed: 02/07/2023]
|
28
|
Salvianolic acid A alleviates chronic ethanol-induced liver injury via promotion of β-catenin nuclear accumulation by restoring SIRT1 in rats. Toxicol Appl Pharmacol 2018; 350:21-31. [PMID: 29729281 DOI: 10.1016/j.taap.2018.04.036] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2017] [Revised: 04/27/2018] [Accepted: 04/29/2018] [Indexed: 02/07/2023]
Abstract
In recent years, alcoholic liver disease (ALD) has emerged as a growing public health problem worldwide. β-catenin plays an important role in the growth, development, regeneration and metabolic activity of the liver. Salvianolic acid A (SalA) is a water-soluble component from the root extract of Salvia miltiorrhiza Bunge, and its effect on ALD has not yet been investigated. This study aimed to investigate the effect of SalA on chronic alcohol-induced liver injury and to explore the role of SIRT1-mediated β-catenin deacetylation in such an effect. In this study, SalA treatment significantly alleviated the accumulation of lipid droplets and reduced the plasma alanine aminotransferase (ALT), aspartate aminotransferase (AST), total cholesterol (TC), triglyceride (TG), alcohol and ammonia levels in rats. SalA enhanced ethanol and ammonia metabolism and maintained mitochondrial homeostasis. Moreover, SalA restored the activity of the major ethanol-metabolizing enzymes and oxidative stress functions in the liver. Importantly, we found that SalA treatment effectively inhibited the ethanol-mediated decrease in nuclear β-catenin by upregulating SIRT1 in the liver. SIRT1 then deacetylated β-catenin to promote its accumulation in the nucleus, thereby preventing alcohol-induced liver injury. The results demonstrate that the SIRT1/β-catenin pathway is a key therapeutic target in liver injury caused by chronic alcohol exposure and that SalA protects against alcohol-induced liver injury via the SIRT1-mediated deacetylation of β-catenin.
Collapse
|
29
|
Chen L, Tao X, Ge S, Cai L, Deng X. Explore the Relationship between Insulin Resistance and PGC1α in PCOS Mice. ACTA ACUST UNITED AC 2018. [DOI: 10.4236/ojemd.2018.83008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
30
|
Tongluo Zhitong Prescription Alleviates Allodynia, Hyperalgesia, and Dyskinesia in the Chronic Constriction Injury Model of Rats. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2017; 2017:8197281. [PMID: 29358972 PMCID: PMC5735685 DOI: 10.1155/2017/8197281] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/18/2017] [Accepted: 11/13/2017] [Indexed: 12/05/2022]
Abstract
Neuropathic pain is common in clinical practice. Exploration of new drug therapeutics has always been carried out for more satisfactory effects and fewer side-effects. In the present study, we aimed to investigate effects of Tongluo Zhitong Prescription (TZP), a compounded Chinese medicine description, on neuropathic pain model of rats with chronic constriction injury (CCI). The CCI model was established by loosely ligating sciatic nerve with catgut suture, proximal to its trifurcation. The static and dynamic allodynia, heat hyperalgesia, mechanical allodynia, cold allodynia, and gait were assessed. Our results showed that TZP alleviated CCI-induced static and dynamic allodynia, suppressed heat hyperalgesia and cold and mechanical allodynia, and improved gait function. These results suggest that TZP could alleviate neuropathic pain. Further experiments are needed to explore its mechanisms.
Collapse
|
31
|
Research Progress on Signaling Pathway-Associated Oxidative Stress in Endothelial Cells. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2017; 2017:7156941. [PMID: 28503253 PMCID: PMC5414589 DOI: 10.1155/2017/7156941] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/04/2016] [Revised: 02/01/2017] [Accepted: 02/16/2017] [Indexed: 12/31/2022]
Abstract
Studying the mechanisms of oxidative stress in endothelial cells is vital to the discovery of novel drugs for the treatment of cardiovascular disease. This article reviews the progress within the field of the role of oxidative responses in the physiology and growth of endothelial cells and emphasizes the effects of several main signal pathways involved in the oxidative stress of endothelial cells. Herein, we aim to provide scientific direction that can serve as a basis for researchers specializing in the signaling pathway of oxidative stress.
Collapse
|
32
|
Liu SG, Wang YM, Zhang YJ, He XJ, Ma T, Song W, Zhang YM. ZL006 protects spinal cord neurons against ischemia-induced oxidative stress through AMPK-PGC-1α-Sirt3 pathway. Neurochem Int 2017; 108:230-237. [PMID: 28411102 DOI: 10.1016/j.neuint.2017.04.005] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2017] [Revised: 04/03/2017] [Accepted: 04/10/2017] [Indexed: 11/16/2022]
Abstract
Spinal cord ischemia (SCI) induces a range of cellular and molecular cascades, including activation of glutamate receptors and downstream signaling. Post-synaptic density protein 95 (PSD-95) links neuronal nitric oxide synthase (nNOS) with the N-methyl-d-aspartic acid (NMDA) receptors to form a ternary complex in the CNS. This molecular complex-mediated cytotoxicity has been implicated in brain ischemia, but its role in SCI has not been determined. The goal of the study was to investigate the potential protective effects of ZL006, a small-molecule inhibitor of the PSD-95/nNOS interaction, in an in vitro SCI model induced by oxygen and glucose deprivation (OGD) in cultured spinal cord neurons. We found that ZL006 reduced OGD-induced lactate dehydrogenase (LDH) release, neuronal apoptosis and loss of cell viability. This protection was accompanied by the preservation of mitochondrial function, as evidenced by reduced mitochondrial oxidative stress, attenuated mitochondrial membrane potential (MMP) loss, and enhanced ATP generation. In addition, ZL006 stimulated mitochondrial enzyme activities and SOD2 deacetylation in a Sirt3-dependent manner. The results of western blot analysis showed that ZL006 increased the activation of AMPK-PGC-1α-Sirt3 pathway, and the beneficial effects of ZL006 was partially abolished by AMPK inhibitor and PGC-1α knockdown. Therefore, our present data showed that, by the AMPK-PGC-1α-Sirt3 pathway, ZL006 protects spinal cord neurons against ischemia through reducing mitochondrial oxidative stress to prevent apoptosis.
Collapse
Affiliation(s)
- Shu-Guang Liu
- Department of Joint Surgery, Hong Hui Hospital, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi Province, 710054, China
| | - Yun-Mei Wang
- Department of Medical Oncology, Shaanxi Provincial Cancer Hospital, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi Province, 710061, China
| | - Yan-Jun Zhang
- Department of Medical Oncology, Shaanxi Provincial Cancer Hospital, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi Province, 710061, China
| | - Xi-Jing He
- Department of Orthopaedics, The Second Affiliated Hospital, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi Province, 710004, China
| | - Tao Ma
- Department of Joint Surgery, Hong Hui Hospital, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi Province, 710054, China
| | - Wei Song
- Department of Joint Surgery, Hong Hui Hospital, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi Province, 710054, China
| | - Yu-Min Zhang
- Department of Joint Surgery, Hong Hui Hospital, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi Province, 710054, China.
| |
Collapse
|
33
|
Jiao CX, Zhou H, Yang CX, Ma C, Yang YX, Mao RR, Xu L, Zhou QX. Protective efficacy of a single salvianolic acid A treatment on photothrombosis-induced sustained spatial memory impairments. Neuropsychiatr Dis Treat 2017; 13:1181-1192. [PMID: 28490880 PMCID: PMC5414628 DOI: 10.2147/ndt.s127094] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
With respect to the high burden of ischemic stroke and the absence of pharmacological treatment for promoting rehabilitation, promising candidates with specific effects on long-term functional recovery are highly desired. Candidates need reasonable experimental paradigms to evaluate the long-term functional outcome focused on ischemia-induced sensorimotor and memory deficits. "Danshen", a traditional Chinese herb, has long been used to treat coronary and cerebral vascular diseases as well as dementia. Salvianolic acid A (SAA), one of the major active ingredients of Danshen, was demonstrated to be effective in protecting against cerebral ischemic injury. Here, employing an experimental stroke model induced by photothrombosis in the unilateral frontal cortex of rats, we investigated whether SAA has long-term protective effects on ischemia-induced sensorimotor and memory deficits in our behavioral tests. The results indicated that a single SAA treatment improved the cortical ischemia-induced sensorimotor deficits during 15 days' cylinder test period, and alleviated ischemia-induced sustained spatial memory impairments during the 2 months' dependent Morris Water Maze (MWM) tests. In addition, either ischemic injury or SAA treatment did not show any changes compared with sham group in other behavioral tests including rotarod tests, swimming speed in MWM tests, open field tests, elevated plus maze tests, treadmill tests and forced swimming tests. The results reveal that the cognitive deficits are not the results of animal's anxiety or confounding motor impairments. Overall, the present paradigm appears suitable for the preclinical evaluation of the long-term effects of pharmacological treatments on ischemic stroke. Meanwhile, SAA might have therapeutic potential for the treatment of memory deficits associated with ischemic stroke.
Collapse
Affiliation(s)
- Chun-Xiang Jiao
- Laboratory of Learning and Memory, Key Laboratory of Animal Models and Human Disease Mechanisms, Kunming Institute of Zoology, CAS, Kunming.,Kunming College of Life Sciences, University of Chinese Academy of Sciences.,Yunnan Provincial Key Laboratory of Entomollogical Biopharmaceutical Research and Development, College of Pharmacy and Chemistry, Dali University, Dali
| | - Heng Zhou
- Laboratory of Learning and Memory, Key Laboratory of Animal Models and Human Disease Mechanisms, Kunming Institute of Zoology, CAS, Kunming.,School of Life Sciences, University of Science and Technology of China, Hefei, People's Republic of China
| | - Chun-Xian Yang
- Laboratory of Learning and Memory, Key Laboratory of Animal Models and Human Disease Mechanisms, Kunming Institute of Zoology, CAS, Kunming.,Kunming College of Life Sciences, University of Chinese Academy of Sciences
| | - Chen Ma
- Laboratory of Learning and Memory, Key Laboratory of Animal Models and Human Disease Mechanisms, Kunming Institute of Zoology, CAS, Kunming.,Kunming College of Life Sciences, University of Chinese Academy of Sciences
| | - Yue-Xiong Yang
- Laboratory of Learning and Memory, Key Laboratory of Animal Models and Human Disease Mechanisms, Kunming Institute of Zoology, CAS, Kunming.,Kunming College of Life Sciences, University of Chinese Academy of Sciences
| | - Rong-Rong Mao
- Laboratory of Learning and Memory, Key Laboratory of Animal Models and Human Disease Mechanisms, Kunming Institute of Zoology, CAS, Kunming.,Kunming College of Life Sciences, University of Chinese Academy of Sciences
| | - Lin Xu
- Laboratory of Learning and Memory, Key Laboratory of Animal Models and Human Disease Mechanisms, Kunming Institute of Zoology, CAS, Kunming.,Kunming College of Life Sciences, University of Chinese Academy of Sciences
| | - Qi-Xin Zhou
- Laboratory of Learning and Memory, Key Laboratory of Animal Models and Human Disease Mechanisms, Kunming Institute of Zoology, CAS, Kunming.,Kunming College of Life Sciences, University of Chinese Academy of Sciences
| |
Collapse
|
34
|
Li H, Cheng Y, Dong H, Wang X, Li J, Gao Q. Preparation of salvianolic acid A by the degradation reaction of salvianolic acid B in subcritical water integrated with pH-zone-refining counter-current chromatography. J Chromatogr A 2016; 1468:42-48. [DOI: 10.1016/j.chroma.2016.09.039] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2016] [Revised: 09/06/2016] [Accepted: 09/20/2016] [Indexed: 12/23/2022]
|
35
|
de Moraes G, Layton CJ. Therapeutic targeting of diabetic retinal neuropathy as a strategy in preventing diabetic retinopathy. Clin Exp Ophthalmol 2016; 44:838-852. [PMID: 27334889 DOI: 10.1111/ceo.12795] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2016] [Revised: 05/22/2016] [Accepted: 06/16/2016] [Indexed: 12/21/2022]
Abstract
Diabetes causes a panretinal neurodegeneration herein termed diabetic retinal neuropathy, which manifests in the retina early and progresses throughout the disease. Clinical manifestations include changes in the ERG, perimetry, dark adaptation, contrast sensitivity and colour vision which correlate with laboratory findings of thinning of the retinal neuronal layers, increased apoptosis in neurons and activation of glial cells. Possible mechanisms include oxidative stress, neuronal AGE accumulation, altered balance of neurotrophic factors and loss of mitohormesis. Retinal neural damage precedes and is a biologically plausible cause of retinal vasculopathy later in diabetes, and this review suggests that strategies to target it directly could prevent diabetes induced blindness. The efficacy of fenofibrate in reducing retinopathy progression provides a possible proof of concept for this approach. Strategies which may target diabetic retinal neuropathy include reducing retinal metabolic demand, improving mitochondrial function with AMPK and Sirt1 activators or providing neurotrophic support with neurotrophic supplementation.
Collapse
Affiliation(s)
| | - Christopher J Layton
- Gallipoli Medical Research Foundation, Brisbane, Queensland, Australia.,University of Queensland School of Medicine, Brisbane, Queensland, Australia.,Greenslopes Private Hospital Ophthalmology Department, Greenslopes Hospital, Brisbane, Queensland, Australia
| |
Collapse
|
36
|
Yu XY, Zhang L, Yang XY, Li XT, Du GH. Salvianolic acid A improves intestinal motility in diabetic rats through antioxidant capacity and upregulation of nNOS. J Dig Dis 2016; 17:441-7. [PMID: 27273366 DOI: 10.1111/1751-2980.12363] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/05/2015] [Revised: 05/08/2016] [Accepted: 05/23/2016] [Indexed: 12/11/2022]
Abstract
OBJECTIVE This study aimed to detect the effect of a new herbal extract salvianolic acid A (SalA) on gastrointestinal complications in diabetic rats. METHODS Altogether 80 rats were divided randomly into five groups, including normal control (NC) group, high-fat (HF) diet group, diabetes mellitus (DM) control group, and DM treated with SalA (0.1 mg/kg and 0.3 mg/kg) groups, respectively. DM was induced by feeding the rats with HF diet and the administration of streptozotocin (30 mg/kg). Four weeks after the establishment of the DM model, the rats received SalA or double distilled water for 8 weeks. After the evaluation of intestinal motility, the animals were sacrificed and their intestines were isolated and collected. The levels of advanced glycation end-products (AGE) and malondialdehyde (MDA) were detected. Protein gene product 9.5 (PGP9.5) and neuronal nitric oxide synthase (nNOS) expressions in the intestine were also detected. RESULTS Compared with the NC and HF rats, the DM control rats showed significantly increased blood glucose level and decreased weight. Compared with the DM control group, SalA did not influence their weight and blood glucose level, but significantly reduced the levels of AGE and MDA. Intestinal transit was promoted by SalA in diabetic rats, and the expressions of PGP9.5 and nNOS in the intestine were both upregulated. CONCLUSION The effect of SalA on the intestinal motility of diabetic rats might be due to its antioxidant capacity and restoring nNOS expression.
Collapse
Affiliation(s)
- Xiao Yan Yu
- Beijing Key Laboratory of Drug Target Identification and Drug Screening, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College.,School of Life Sciences, Tsinghua University, Beijing.,Shanghai Institute of Immunology, Department of Immunology and Microbiology, Shanghai Jiaotong University School of Medicine, Shanghai
| | - Li Zhang
- Beijing Key Laboratory of Drug Target Identification and Drug Screening, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College
| | - Xiu Ying Yang
- Beijing Key Laboratory of Drug Target Identification and Drug Screening, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College
| | - Xiao Ting Li
- Pharmaceutical College of Henan University, Kaifeng, Henan Province, China
| | - Guan Hua Du
- Beijing Key Laboratory of Drug Target Identification and Drug Screening, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College.
| |
Collapse
|
37
|
Chen Y, Qing W, Sun M, Lv L, Guo D, Jiang Y. Melatonin protects hepatocytes against bile acid-induced mitochondrial oxidative stress via the AMPK-SIRT3-SOD2 pathway. Free Radic Res 2016; 49:1275-84. [PMID: 26118716 DOI: 10.3109/10715762.2015.1067806] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Mitochondrial oxidative damage is hypothesized to contribute to the pathogenesis of chronic cholestatic liver diseases. Melatonin, an indolamine synthesized in the pineal gland, shows a wide range of physiological functions, and is under clinical investigation for expanded applications. Melatonin has demonstrated efficient protective effects against various types of oxidative damage in the liver system. This study investigates the protective effects of melatonin pretreatment on glycochenodeoxycholic acid (GCDCA)-induced hepatotoxicity and elucidates the potential mechanism of melatonin-mediated protection. Melatonin markedly decreased mitochondrial ROS (mROS) production in L02 cells treated with 100 μM GCDCA, and inhibited GCDCA-stimulated cytotoxicity. Notably, melatonin exerted its hepatoprotective effects by upregulating sirtuin 3 (SIRT3) activity and its expression level, thus regulating superoxide dismutase 2 (SOD2) acetylation and inhibiting the production of mROS induced by GCDCA. Moreover, siRNA targeting SIRT3 blocked the melatonin-mediated elevation in mitochondrial function by inhibiting SIRT3/SOD2 signaling. Importantly, melatonin-activated SIRT3 activity was completely abolished by AMP-activated, alpha 1 catalytic subunit (AMPK) siRNA transfection. Similar results were obtained in rat with bile duct ligation or BDL. In summary, our findings indicate that melatonin is a novel hepatoprotective small molecule that functions by elevating SIRT3, stimulating SOD2 activity, and suppressing mitochondrial oxidative stress at least through AMPK, and that SIRT3 may be of therapeutic value in liver cell protection for GCDCA-induced hepatotoxicity.
Collapse
Affiliation(s)
- Y Chen
- a Department of Hepatobiliary Surgery , Fuzhou General Hospital , Fuzhou , China
| | | | | | | | | | | |
Collapse
|
38
|
Ma J, Yu H, Liu J, Chen Y, Wang Q, Xiang L. Metformin attenuates hyperalgesia and allodynia in rats with painful diabetic neuropathy induced by streptozotocin. Eur J Pharmacol 2015; 764:599-606. [PMID: 26054810 DOI: 10.1016/j.ejphar.2015.06.010] [Citation(s) in RCA: 87] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2014] [Revised: 05/16/2015] [Accepted: 06/04/2015] [Indexed: 11/28/2022]
Abstract
Painful diabetic neuropathy is a common complication of diabetes mellitus, which often makes the patients suffer from severe hyperalgesia and allodynia. Thus far, the treatment of painful diabetic neuropathy remains unsatisfactory. Metformin, which is the first-line drug for type-2 diabetes, has been proved to attenuate hyperexcitability in sensory neurons linked to chemotherapy-induced neuropathic pain, highlighting its potential in alleviating pain related with painful diabetic neuropathy. The present study was designed to investigate the potential beneficial effect of metformin on hyperalgesia and allodynia in diabetic rats. The mechanical sensitivity, heat nociception, and cold allodynia were examined. The levels of malondialdehyde, superoxide dismutase, and advanced glycation end-products in the blood were measured. The expression of adenosine monophosphate-activated protein kinase (AMPK) phosphorylation and AMPK target genes were examined in the sciatic nerves of the animals. It was found that metformin was capable of attenuating diabetes-induced mechanical hyperalgesia, heat hyperalgesia and cold allodynia. In addition, metformin was capable of decreasing malondialdehyde and glycation end-products levels in blood, as well as increasing superoxide dismutas activity, indicating the inhibitory effect of metformin against diabetes-induced oxidative stress. Further studies showed that metformin could activate AMPK and increase the AMPK target genes in sciatic nerves in diabetic rats. In conclusion, metformin is able to attenuate diabetes-induced hyperalgesia and allodynia, which might be associated its anti-oxidative effect through AMPK pathway. Metformin might be used as an effective drug, especially with fewer side effects, for abnormal sensation in painful diabetic neuropathy.
Collapse
Affiliation(s)
- Junxiong Ma
- Department of Orthopedics, General Hospital of Shenyang Military Area Command of Chinese PLA, Rescue Center of Severe Wound and Trauma of Chinese PLA, Shenyang 110016, Liaoning, China
| | - Hailong Yu
- Department of Orthopedics, General Hospital of Shenyang Military Area Command of Chinese PLA, Rescue Center of Severe Wound and Trauma of Chinese PLA, Shenyang 110016, Liaoning, China
| | - Jun Liu
- Department of Orthopedics, General Hospital of Shenyang Military Area Command of Chinese PLA, Rescue Center of Severe Wound and Trauma of Chinese PLA, Shenyang 110016, Liaoning, China
| | - Yu Chen
- Department of Orthopedics, General Hospital of Shenyang Military Area Command of Chinese PLA, Rescue Center of Severe Wound and Trauma of Chinese PLA, Shenyang 110016, Liaoning, China
| | - Qi Wang
- Department of Orthopedics, General Hospital of Shenyang Military Area Command of Chinese PLA, Rescue Center of Severe Wound and Trauma of Chinese PLA, Shenyang 110016, Liaoning, China
| | - Liangbi Xiang
- Department of Orthopedics, General Hospital of Shenyang Military Area Command of Chinese PLA, Rescue Center of Severe Wound and Trauma of Chinese PLA, Shenyang 110016, Liaoning, China.
| |
Collapse
|
39
|
Abstract
The concept that excess superoxide production from mitochondria is the driving, initial cellular response underlying diabetes complications has been held for the past decade. However, results of antioxidant-based trials have been largely negative. In the present review, the data supporting mitochondrial superoxide as a driving force for diabetic kidney, nerve, heart, and retinal complications are reexamined, and a new concept for diabetes complications--mitochondrial hormesis--is presented. In this view, production of mitochondrial superoxide can be an indicator of healthy mitochondria and physiologic oxidative phosphorylation. Recent data suggest that in response to excess glucose exposure or nutrient stress, there is a reduction of mitochondrial superoxide, oxidative phosphorylation, and mitochondrial ATP generation in several target tissues of diabetes complications. Persistent reduction of mitochondrial oxidative phosphorylation complex activity is associated with the release of oxidants from nonmitochondrial sources and release of proinflammatory and profibrotic cytokines, and a manifestation of organ dysfunction. Restoration of mitochondrial function and superoxide production via activation of AMPK has now been associated with improvement in markers of renal, cardiovascular, and neuronal dysfunction with diabetes. With this Perspective, approaches that stimulate AMPK and PGC1α via exercise, caloric restriction, and medications result in stimulation of mitochondrial oxidative phosphorylation activity, restore physiologic mitochondrial superoxide production, and promote organ healing.
Collapse
Affiliation(s)
- Kumar Sharma
- Center for Renal Translational Medicine, Division of Nephrology-Hypertension, Department of Medicine, University of California, San Diego, San Diego, CA, and Division of Nephrology-Hypertension, Veterans Affairs San Diego Healthcare System, Veterans Medical Research Foundation, San Diego, CA
| |
Collapse
|
40
|
Jiang X, Chen J, Zhang C, Zhang Z, Tan Y, Feng W, Skibba M, Xin Y, Cai L. The protective effect of FGF21 on diabetes-induced male germ cell apoptosis is associated with up-regulated testicular AKT and AMPK/Sirt1/PGC-1α signaling. Endocrinology 2015; 156:1156-70. [PMID: 25560828 PMCID: PMC6285187 DOI: 10.1210/en.2014-1619] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Fibroblast growth factor 21 (FGF21) is a metabolic regulator that is required for normal spermatogenesis and protects against diabetes-induced germ cell apoptosis. Here, we tried to define whether diabetes-induced germ cell apoptosis that is predominantly due to increased oxidative stress was associated with impaired glucose and fatty acid metabolism, by examining the effects of Fgf21 gene knockout (FGF21-KO) or FGF21 treatment on the glucose and fatty acid metabolic pathways in streptozotocin-induced diabetic mice. Western blottings revealed that protein kinase B (AKT)-mediated glucose signaling was down-regulated in diabetic testes and further decreased in FGF21-KO diabetic group both 10 days and 2 months after diabetes onset, reflected by reduced glycogen synthase (GS) kinase (GSK)-3β phosphorylation and increased GS phosphorylation. Deletion of the Fgf21 gene also inactivated fatty acid metabolism-related factors, AMP-activated protein kinase (AMPK), sirtuin 1 (Sirt1), and peroxisome proliferator-activated receptor-γ coactivator 1α (PGC-1α), along with exacerbating diabetes-induced testicular oxidative stress and damage. Treatment with recombinant FGF21 partially prevented these diabetic effects. In FGF21-KO nondiabetic mice, testicular AMPK/Sirt1/PGC-1α signaling was down-regulated and AKT1 and murine double minute 2 were inactivated along with the increased p53 expression but not AKT2, GSK-3β, and GS. These results suggest that the role of FGF21 in maintaining spermatogenesis is associated with its activation of AKT1 and inhibition of p53. Deletion of the Fgf21gene significantly exacerbates diabetes-induced down-regulation of testicular AKT/GSK-3β/GS and AMPK/Sirt1/PGC-1α pathways and testicular oxidative stress and cell apoptosis.
Collapse
Affiliation(s)
- Xin Jiang
- The First Hospital of Jilin University (X.J., Z.Z.) and Key Laboratory of Pathobiology (Y.X.), Ministry of Education, Jilin University, Changchun 130021, China; Kosair Children's Hospital Research Institute at the Department of Pediatrics (X.J., J.C., Z.Z., Y.T., Y.X., L.C.), and Departments of Medicine (W.F.) and Pharmacology and Toxicology (Y.T., W.F., M.S., L.C.), University of Louisville, Louisville 40202; and Nursing School of Wenzhou Medical University (J.C.) and The Chinese-American Research Institute for Diabetic Complications (C.Z., Y.T., M.S., L.C.), Wenzhou Medical University, Wenzhou 325035, China
| | | | | | | | | | | | | | | | | |
Collapse
|
41
|
Zhang SJ, Li YF, Wang GE, Tan RR, Tsoi B, Mao GW, Zhai YJ, Cao LF, Chen M, Kurihara H, Wang Q, He RR. Caffeine ameliorates high energy diet-induced hepatic steatosis: sirtuin 3 acts as a bridge in the lipid metabolism pathway. Food Funct 2015; 6:2578-87. [DOI: 10.1039/c5fo00247h] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
We demonstrate that caffeine could improve HED-induced hepatic steatosis by promoting lipid metabolism via the cAMP/CREB/SIRT3/AMPK/ACC pathway. SIRT3 acts as a molecular bridge connecting caffeine and lipid metabolism.
Collapse
|
42
|
Choi J, Chandrasekaran K, Inoue T, Muragundla A, Russell JW. PGC-1α regulation of mitochondrial degeneration in experimental diabetic neuropathy. Neurobiol Dis 2014; 64:118-30. [PMID: 24423644 DOI: 10.1016/j.nbd.2014.01.001] [Citation(s) in RCA: 69] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2013] [Revised: 12/20/2013] [Accepted: 01/02/2014] [Indexed: 02/08/2023] Open
Abstract
Mitochondrial degeneration is considered to play an important role in the development of diabetic peripheral neuropathy in humans. Mitochondrial degeneration and the corresponding protein regulation associated with the degeneration were studied in an animal model of diabetic neuropathy. PGC-1α and its-regulated transcription factors including TFAM and NRF1, which are master regulators of mitochondrial biogenesis, are significantly downregulated in streptozotocin diabetic dorsal root ganglion (DRG) neurons. Diabetic mice develop peripheral neuropathy, loss of mitochondria, decreased mitochondrial DNA content and increased protein oxidation. Importantly, this phenotype is exacerbated in PGC-1α (-/-) diabetic mice, which develop a more severe neuropathy with reduced mitochondrial DNA and a further increase in protein oxidation. PGC-1α (-/-) diabetic mice develop an increase in total cholesterol and triglycerides, and a decrease in TFAM and NRF1 protein levels. Loss of PGC-1α causes severe mitochondrial degeneration with vacuolization in DRG neurons, coupled with reduced state 3 and 4 respiration, reduced expression of oxidative stress response genes and an increase in protein oxidation. In contrast, overexpression of PGC-1α in cultured adult mouse neurons prevents oxidative stress associated with increased glucose levels. The study provides new insights into the role of PGC-1α in mitochondrial regeneration in peripheral neurons and suggests that therapeutic modulation of PGC-1α function may be an attractive approach for treatment of diabetic neuropathy.
Collapse
Affiliation(s)
- Joungil Choi
- VA Maryland Health Care System, University of Maryland, Baltimore, MD, USA; Department of Neurology, University of Maryland, Baltimore, MD, USA
| | - Krish Chandrasekaran
- VA Maryland Health Care System, University of Maryland, Baltimore, MD, USA; Department of Neurology, University of Maryland, Baltimore, MD, USA
| | - Tatsuya Inoue
- VA Maryland Health Care System, University of Maryland, Baltimore, MD, USA; Department of Neurology, University of Maryland, Baltimore, MD, USA
| | - Anjaneyulu Muragundla
- VA Maryland Health Care System, University of Maryland, Baltimore, MD, USA; Department of Neurology, University of Maryland, Baltimore, MD, USA
| | - James W Russell
- VA Maryland Health Care System, University of Maryland, Baltimore, MD, USA; Department of Neurology, University of Maryland, Baltimore, MD, USA.
| |
Collapse
|
43
|
Salvianolic acid A preconditioning confers protection against concanavalin A-induced liver injury through SIRT1-mediated repression of p66shc in mice. Toxicol Appl Pharmacol 2013; 273:68-76. [DOI: 10.1016/j.taap.2013.08.021] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2013] [Revised: 07/15/2013] [Accepted: 08/16/2013] [Indexed: 12/18/2022]
|
44
|
Sun J, Zhang L, Song J, Tian S, Huang C, Feng Z, Lv Y, Du G. Pharmacokinetic study of salvianolic acid A in beagle dog after oral administration by a liquid chromatography-mass spectrometry method: a study on bioavailability and dose proportionality. JOURNAL OF ETHNOPHARMACOLOGY 2013; 148:617-623. [PMID: 23707334 DOI: 10.1016/j.jep.2013.05.013] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2012] [Revised: 05/07/2013] [Accepted: 05/14/2013] [Indexed: 06/02/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Salvianolic acid A (SAA) is one of the main water-soluble components isolated from Salvia miltiorrhiza Bunge. Pharmacological researches revealed that it had various curative activities after oral and intravenous administration, including beneficial effects on diabetes and its complications, cardioprotective effect, anti-platelet aggregation, and so on. However, there is no report regarding the pharmacokinetics of SAA in beagle dogs after oral administration up to now. AIM OF THE STUDY To study the pharmacokinetics of different doses of SAA in beagle dogs and figure out the absolute bioavailability and dose proportionality of SAA after oral administration. MATERIALS AND METHODS Male and female beagle dogs were orally administered SAA 5, 10 and 20mg/kg randomly. The plasma drug concentration was detected by a rapid, sensitive and reproducible liquid chromatography-mass spectrometry (LC-MS) method. The pharmacokinetic parameters were calculated from plasma concentration-time data using the DAS pharmacokinetic software Data Analysis System Version 3.0 program. RESULTS After single-dose oral administration of SAA, the mean peak plasma concentration (Cmax) values for groups treated with 5, 10 and 20 mg/kg doses ranged from 14.38 to 38.18 µg/L, and the mean area under the concentration-time curve (AUC(0-t)) values ranged from 38.77 to 130.33 (µg/L·h). SAA showed lack of dose proportionality over the dose range 5-20mg/kg, based on the power model. However, the increase in systemic exposure with dose appeared linear. The absolute bioavailability was calculated to range from 1.47% to 1.84%. CONCLUSION The pharmacokinetic properties of SAA in beagle dogs after oral administration were characterized as rapid oral absorption, quick clearance, and poor absolute bioavailability. Systemic exposure exhibited lack of dose proportionality over the dose range 5-20mg/kg. Furthermore, a readily preparative LC-MS method was demonstrated in this study for the research of traditional Chinese medicine.
Collapse
Affiliation(s)
- Jialin Sun
- Beijing Key Laboratory of Drug Target Identification and Drug Screening, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | | | | | | | | | | | | | | |
Collapse
|
45
|
Diabetic neuropathy and oxidative stress: therapeutic perspectives. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2013; 2013:168039. [PMID: 23738033 PMCID: PMC3655656 DOI: 10.1155/2013/168039] [Citation(s) in RCA: 113] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/16/2012] [Revised: 02/22/2013] [Accepted: 03/18/2013] [Indexed: 12/15/2022]
Abstract
Diabetic neuropathy (DN) is a widespread disabling disorder comprising peripheral nerves' damage. DN develops on a background of hyperglycemia and an entangled metabolic imbalance, mainly oxidative stress. The majority of related pathways like polyol, advanced glycation end products, poly-ADP-ribose polymerase, hexosamine, and protein kinase c all originated from initial oxidative stress. To date, no absolute cure for DN has been defined; although some drugs are conventionally used, much more can be found if all pathophysiological links with oxidative stress would be taken into account. In this paper, although current therapies for DN have been reviewed, we have mainly focused on the links between DN and oxidative stress and therapies on the horizon, such as inhibitors of protein kinase C, aldose reductase, and advanced glycation. With reference to oxidative stress and the related pathways, the following new drugs are under study such as taurine, acetyl-L-carnitine, alpha lipoic acid, protein kinase C inhibitor (ruboxistaurin), aldose reductase inhibitors (fidarestat, epalrestat, ranirestat), advanced glycation end product inhibitors (benfotiamine, aspirin, aminoguanidine), the hexosamine pathway inhibitor (benfotiamine), inhibitor of poly ADP-ribose polymerase (nicotinamide), and angiotensin-converting enzyme inhibitor (trandolapril). The development of modern drugs to treat DN is a real challenge and needs intensive long-term comparative trials.
Collapse
|