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Rezaee A, Rahmanian P, Nemati A, Sohrabifard F, Karimi F, Elahinia A, Ranjbarpazuki A, Lashkarbolouki R, Dezfulian S, Zandieh MA, Salimimoghadam S, Nabavi N, Rashidi M, Taheriazam A, Hashemi M, Hushmandi K. NF-ĸB axis in diabetic neuropathy, cardiomyopathy and nephropathy: A roadmap from molecular intervention to therapeutic strategies. Heliyon 2024; 10:e29871. [PMID: 38707342 PMCID: PMC11066643 DOI: 10.1016/j.heliyon.2024.e29871] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2023] [Revised: 04/11/2024] [Accepted: 04/16/2024] [Indexed: 05/07/2024] Open
Abstract
Diabetes mellitus (DM) is a metabolic illness defined by elevated blood glucose levels, mediating various tissue alterations, including the dysfunction of vital organs. Diabetes mellitus (DM) can lead to many consequences that specifically affect the brain, heart, and kidneys. These issues are known as neuropathy, cardiomyopathy, and nephropathy, respectively. Inflammation is acknowledged as a pivotal biological mechanism that contributes to the development of various diabetes consequences. NF-κB modulates inflammation and the immune system at the cellular level. Its abnormal regulation has been identified in several clinical situations, including cancer, inflammatory bowel illnesses, cardiovascular diseases, and Diabetes Mellitus (DM). The purpose of this review is to evaluate the potential impact of NF-κB on complications associated with DM. Enhanced NF-κB activity promotes inflammation, resulting in cellular harm and compromised organ performance. Phytochemicals, which are therapeutic molecules, can potentially decline the NF-κB level, therefore alleviating inflammation and the progression of problems correlated with DM. More importantly, the regulation of NF-κB can be influenced by various factors, such as TLR4 in DM. Highlighting these factors can facilitate the development of novel therapies in the future.
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Affiliation(s)
- Aryan Rezaee
- School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Parham Rahmanian
- Faculty of Veterinary Medicine, Islamic Azad University, Science and Research Branch, Tehran, Iran
| | - Amirreza Nemati
- School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Farima Sohrabifard
- Faculty of Veterinary Medicine, Islamic Azad University, Science and Research Branch, Tehran, Iran
| | - Fatemeh Karimi
- Faculty of Veterinary Medicine, Islamic Azad University, Science and Research Branch, Tehran, Iran
| | - Ali Elahinia
- Department of Clinical Science, Faculty of Veterinary Medicine, Islamic Azad University, Science and Research Branch, Tehran, Iran
| | - Ali Ranjbarpazuki
- School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Rozhin Lashkarbolouki
- Faculty of Veterinary Medicine, Islamic Azad University, Science and Research Branch, Tehran, Iran
| | - Sadaf Dezfulian
- Faculty of Veterinary Medicine, Islamic Azad University, Science and Research Branch, Tehran, Iran
| | - Mohammad Arad Zandieh
- Department of Food Hygiene and Quality Control, Division of Epidemiology, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran
| | - Shokooh Salimimoghadam
- Department of Biochemistry and Molecular Biology, Faculty of Veterinary Medicine, Shahid Chamran University of Ahvaz, Ahvaz, Iran
| | - Noushin Nabavi
- Department of Urologic Sciences and Vancouver Prostate Centre, University of British Columbia, V6H3Z6, Vancouver, BC, Canada
| | - Mohsen Rashidi
- Department Pharmacology, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
- The Health of Plant and Livestock Products Research Center, Mazandaran University of Medical Sciences, Sari, Iran
| | - Afshin Taheriazam
- Department of Orthopedics, Faculty of Medicine, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
- Farhikhtegan Medical Convergence Sciences Research Center, Farhikhtegan Hospital Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Mehrdad Hashemi
- Farhikhtegan Medical Convergence Sciences Research Center, Farhikhtegan Hospital Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
- Department of Genetics, Faculty of Advanced Science and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Kiavash Hushmandi
- Department of Food Hygiene and Quality Control, Division of Epidemiology, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran
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Wang CC, Kang L, Zuo BL, Peng X, Li HW, Zhou N, Li K. Gleditsiae sinensis fructus Pills combined with Jujubae fructus attenuate chronic bronchitis via regulation of AGE-RAGE signaling pathway. JOURNAL OF ETHNOPHARMACOLOGY 2024; 319:117191. [PMID: 37717840 DOI: 10.1016/j.jep.2023.117191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Revised: 09/08/2023] [Accepted: 09/13/2023] [Indexed: 09/19/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Gleditsiae sinensis fructus Pills (GF) is a famous classical prescription, that is regularly combined with Jujubae fructus (JF) for the treatment of chronic bronchitis (CB) in the clinic. While the clinical efficacy of this combination prescription is clearly established, the active ingredients and molecular mechanisms remain unclear. AIM OF THE STUDY To elucidate the mechanisms of action of Gleditsiae sinensis fructus Pills combined with Jujubae fructus (GF&JF) against CB based on network pharmacology and experimental verification. MATERIALS AND METHODS The potential targets of GF&JF involved in therapeutic activity against CB were predicted based on network pharmacology and an "ingredients-targets" network constructed. The Metascape database was used for Module, GO functional and KEGG signaling pathway enrichment analyses of potential targets. Molecular docking was applied to simulate the binding activities of key candidate active ingredients to core targets. For experimental verification, a CB model was established through smoking and nasal cavity drip of lipopolysaccharide. Related inflammatory factors, including TNF-α, TGF-β, IL-6 and IL-8 in serum, and IL-4 IL-8, IFN-γ and IL-10 in bronchoalveolar lavage fluid (BALF), were detected using ELISA. Hematoxylin and eosin (H&E) and Masson staining were performed to observe pathological changes in lung and tracheal tissue. The expression of related proteins and mRNAs in the lung tissue were detected using immunohistochemistry (IHC), quantitative real-time PCR, and western blot. RESULTS In network pharmacology, 36 common targets of GF&JF for CB were screened and the key targets and main signaling pathways identified. The active ingredients quercetin and stigmasterol in GF&JF had more targets for CB, which displayed good binding activity to IL-6, VEGFA, and EGFR, as established from molecular docking results. In vivo, GF&JF effectively inhibit the inflammatory response in CB mice and improved pathological changes in lung and tracheal tissue. In terms of the key proteins of the AGE-RAGE signaling pathway, GF&JF induced significant down-regulation of IL-6, ICAM-1, VCAM-1, EGFR, CASPASE-3, AGEs and RAGE proteins in lung tissue as well as mRNA expression of IL-6, ICAM-1, VCAM-1, EGFR, AGEs and RAGE. CONCLUSIONS The GF&JF combination exerts a good therapeutic effect in CB model mice, which may be attributed to inhibition of the inflammatory response as well as regulation on the expression of AGE-RAGE signaling pathway. In addition, quercetin and stigmasterol appear to be the main active ingredients of GF&JF in the treatment of CB.
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Affiliation(s)
- Chang-Chang Wang
- College of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, China.
| | - Le Kang
- College of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, China; Henan Research Center for Special Processing Technology of Chinese Medicine, Zhengzhou, 450046, China.
| | - Bei-Lei Zuo
- College of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, China.
| | - Xin Peng
- College of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, China.
| | - Hong-Wei Li
- College of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, China; Henan Research Center for Special Processing Technology of Chinese Medicine, Zhengzhou, 450046, China; Co-construction Collaborative Innovation Center for Chinese Medicine and Respiratory Diseases by Henan & Education Ministry of P.R, Zhengzhou, China.
| | - Ning Zhou
- College of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, China; Henan Research Center for Special Processing Technology of Chinese Medicine, Zhengzhou, 450046, China; Co-construction Collaborative Innovation Center for Chinese Medicine and Respiratory Diseases by Henan & Education Ministry of P.R, Zhengzhou, China.
| | - Kai Li
- College of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, China; Henan Research Center for Special Processing Technology of Chinese Medicine, Zhengzhou, 450046, China; Co-construction Collaborative Innovation Center for Chinese Medicine and Respiratory Diseases by Henan & Education Ministry of P.R, Zhengzhou, China.
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Liang S, Yin Y, Zhang Z, Fang Y, Lu G, Li H, Yin Y, Shen M. Moxibustion prevents tripterygium glycoside-induced oligoasthenoteratozoospermia in rats via reduced oxidative stress and modulation of the Nrf2/HO-1 signaling pathway. Aging (Albany NY) 2024; 16:2141-2160. [PMID: 38277193 PMCID: PMC10911353 DOI: 10.18632/aging.205475] [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: 06/13/2023] [Accepted: 11/30/2023] [Indexed: 01/27/2024]
Abstract
Oligoasthenoteratozoospermia (OAT) decreases male fertility, seriously affecting the production of offspring. This study clarified the preventive impact of different moxibustion frequencies on OAT and selected the optimal frequency to elucidate the underlying mechanism. An OAT rat model was constructed by gavage of tripterygium glycosides (TGS) suspension. Daily moxibustion (DM) or alternate-day moxibustion (ADM) was administered on the day of TGS suspension administration. Finally, we selected DM for further study based on sperm quality and DNA fragmentation index, testicular and epididymal morphology, and reproductive hormone level results. Subsequently, the oxidative stress (OS) status was evaluated by observing the OS indices levels; malondialdehyde (MDA), 8-hydroxy-deoxyguanosine (8-OHdG), total antioxidant capacity (T-AOC), and total superoxide dismutase (T-SOD) in testicular tissue using colorimetry and enzyme-linked immunosorbent assay. Furthermore, heme oxygenase 1 (HO-1) and nuclear factor erythropoietin-2-related factor 2 (Nrf2) were evaluated using Western blotting. Immunohistochemistry was employed to locate and assess the expression of HO-1 and Nrf2 protein, while quantitative real-time polymerase chain reaction was utilized to detect their mRNA expression. MDA and 8-OHdG levels decreased following DM treatment, while T-SOD and T-AOC increased, suggesting that DM may prevent TGS-induced OAT in rats by decreasing OS in the testis. Furthermore, protein and mRNA expression of Nrf2 and HO-1 in the testis were elevated, indicating that DM may reduce OS by activating the signaling pathway of Nrf2/HO-1. Therefore, DM could prevent OAT in rats via the Nrf2/HO-1 pathway, thereby presenting a promising therapeutic approach against OAT.
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Affiliation(s)
- Shangjie Liang
- College of Acupuncture, Moxibustion and Tuina, Nanjing University of Chinese Medicine, Nanjing 210023, Jiangsu, China
| | - Yaqun Yin
- College of Acupuncture, Moxibustion and Tuina, Nanjing University of Chinese Medicine, Nanjing 210023, Jiangsu, China
| | - Zhizi Zhang
- College of Acupuncture, Moxibustion and Tuina, Nanjing University of Chinese Medicine, Nanjing 210023, Jiangsu, China
| | - Yansu Fang
- College of Acupuncture, Moxibustion and Tuina, Nanjing University of Chinese Medicine, Nanjing 210023, Jiangsu, China
| | - Ge Lu
- College of Acupuncture, Moxibustion and Tuina, Nanjing University of Chinese Medicine, Nanjing 210023, Jiangsu, China
| | - Hongxiao Li
- College of Acupuncture, Moxibustion and Tuina, Nanjing University of Chinese Medicine, Nanjing 210023, Jiangsu, China
| | - Yaoli Yin
- College of Acupuncture, Moxibustion and Tuina, Nanjing University of Chinese Medicine, Nanjing 210023, Jiangsu, China
| | - Meihong Shen
- College of Acupuncture, Moxibustion and Tuina, Nanjing University of Chinese Medicine, Nanjing 210023, Jiangsu, China
- Key Laboratory of Acupuncture and Medicine Research of Ministry of Education, Nanjing University of Chinese Medicine, Nanjing 210023, Jiangsu, China
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Bibi T, Bano S, Ud Din F, Ali H, Khan S. Preparation, characterization, and pharmacological application of oral Honokiol-loaded solid lipid nanoparticles for diabetic neuropathy. Int J Pharm 2023; 645:123399. [PMID: 37703961 DOI: 10.1016/j.ijpharm.2023.123399] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Revised: 08/24/2023] [Accepted: 09/08/2023] [Indexed: 09/15/2023]
Abstract
Honokiol is a phytochemical component with a variety of pharmacological properties. However, the major limitation of Honokiol is its poor solubility and low oral bioavailability. In this study, we formulated and characterized oral Honokiol-loaded solid lipid nanoparticles (SLNs) to enhance bioavailability and then evaluated their effectiveness in experimental diabetic neuropathy (DN). The finalized formulation has a spherical morphology, a particle size (PS) of 121.31 ± 9.051 nm, a polydispersity index (PDI) of 0.249 ± 0.002, a zeta potential (ZP) of -20.8 ± 2.72 mV, and an entrapment efficiency (% EE) of 88.66 ± 2.30 %. In-vitro release data shows, Honokiol-SLNs displayed a sustained release profile at pH (7.4). The oral bioavailability of Honokiol-SLNs was remarkably greater (8-fold) than Honokiol-Pure suspension. The neuroprotective property of Honokiol-SLNs was initially demonstrated against hydrogen peroxide H2O2-stimulated PC12 (pheochromocytoma) cells. Furthermore, results of in-vivo studies demonstrated that treatment with Honokiol-SLNs significantly (p < 0.001) suppressed oxidative stress by inhibition of nuclear factor kappa B (NF-κB) and significant (p < 0.001) upregulation of nuclear factor-erythroid 2-related factor 2 (Nrf2) signaling in the spinal cord. The expression of transient receptor potential melastatin 8(TRPM8) and transient receptor potential vanilloid 1 (TRPV1) was significantly (p < 0.001) downregulated. Honokiol-SLNs inhibited apoptosis by significant (p < 0.001) downregulation of cleaved caspase-3 expression in the spinal cord. These findings demonstrate that Honokiol-SLNs providedbetter neuroprotection in DN because of higher oral bioavailability.
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Affiliation(s)
- Tehmina Bibi
- Pharmacological Sciences Research Lab, Department of Pharmacy, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad 45320, Pakistan; Department of Pharmacy, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad 45320, Pakistan
| | - Shahar Bano
- Pharmacological Sciences Research Lab, Department of Pharmacy, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad 45320, Pakistan; Department of Pharmacy, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad 45320, Pakistan
| | - Fakhar Ud Din
- Department of Pharmacy, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad 45320, Pakistan; Nanomedicine Research Group, Department of Pharmacy, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad 45320, Pakistan
| | - Hussain Ali
- Department of Pharmacy, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad 45320, Pakistan
| | - Salman Khan
- Pharmacological Sciences Research Lab, Department of Pharmacy, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad 45320, Pakistan; Department of Pharmacy, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad 45320, Pakistan.
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Yin Y, Wang L, Zhao L, Lin L, Shen X. Effect of 10.6 μm laser moxibustion on inflammation in diabetic peripheral neuropathy rats. Front Endocrinol (Lausanne) 2023; 14:1203677. [PMID: 37593350 PMCID: PMC10427917 DOI: 10.3389/fendo.2023.1203677] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Accepted: 07/14/2023] [Indexed: 08/19/2023] Open
Abstract
Diabetic peripheral neuropathy (DPN) is the main cause of disability in diabetes patients but the efficacy of available drugs is poor. Moxibustion is an adjunctive treatment for DPN that can reduce symptoms. The peak value of the far infrared wavelength of 10.6 μm laser moxibustion is close to the infrared radiation spectrum of traditional moxibustion. Its effect is similar to that of moxibustion and does not cause pain, infection or produce irritating smoke. Twenty-four male SD rats were divided into control (Con), DPN, laser moxibustion (LM), and pyrrolidine dithiocarbamate (PDTC) groups (n=6/group). The DPN, LM and PDTC group rats were intraperitoneally injected with 1% streptozotocin (STZ) to induce a model of DPN. LM group rats were irradiated with a laser at bilateral ST36 acupoints for 15 min, once every other day, for 14 days. PDTC group rats were intraperitoneally injected with PDTC once a day. Body weight, blood glucose, and paw withdrawal mechanical threshold (PWMT) were measured and laser speckle imaging (LSI) performed before and after modeling and at 1 and 2 weeks after intervention. Two weeks after intervention, changes in serum interleukin 1β (IL1β), interleukin 6 (IL6), tumor necrosis factor α (TNFα) and nerve growth factor (NGF) were analyzed, and the abundance of NF-κB and IκB-α proteins and levels of NF-κB and IκB-α mRNAs in the sciatic nerve were observed. The results showed that 10.6 μm laser moxibustion can relieve pain, improve microcirculation, and alleviate inflammation in DPN rats, possibly via the NF-κB inflammatory pathway.
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Affiliation(s)
- Yue Yin
- School of Acupuncture-Moxibustion and Tuina, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Lina Wang
- School of Acupuncture-Moxibustion and Tuina, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Ling Zhao
- School of Acupuncture-Moxibustion and Tuina, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Lin Lin
- School of Nursing, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Xueyong Shen
- School of Acupuncture-Moxibustion and Tuina, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Laboratory of Systemic Physiology for Acupuncture and Meridian, Shanghai Research Center of Acupuncture and Meridian, Shanghai, China
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Abstract
CONTEXT The prevalence of diabetic neuropathy is drastically increasing in the world. To halt the progression of diabetic neuropathy, there is an unmet need to have potential biomarkers for the diagnosis and new drug discovery. OBJECTIVE To study various biomarkers involved in the pathogenesis of diabetic neuropathy. METHODS The literature was searched with the help of various scientific databases and resources like PubMed, ProQuest, Scopus, and Google scholar from the year 1976 to 2020. RESULTS Biomarkers of diabetic neuropathy are categorised as inflammatory biomarkers such as MCP-1, VEGF, TRPV1, NF-κB; oxidative biomarkers such as adiponectin, NFE2L2; enzyme biomarkers like NADPH, ceruloplasmin, HO-1, DPP-4, PARP α; miscellaneous biomarkers such as SIRT1, caveolin 1, MALAT1, and microRNA. All biomarkers have a significant role in the pathogenesis of diabetic neuropathy. CONCLUSION These biomarkers have a potential role in the progression of diabetic neuropathy and can be considered as potential targets for new drug discovery.
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Affiliation(s)
- Kaveri M Adki
- Shobhaben Pratapbhai Patel School of Pharmacy & Technology Management, SVKM's NMIMS, Mumbai, India
| | - Yogesh A Kulkarni
- Shobhaben Pratapbhai Patel School of Pharmacy & Technology Management, SVKM's NMIMS, Mumbai, India
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TRPV4 Role in Neuropathic Pain Mechanisms in Rodents. Antioxidants (Basel) 2022; 12:antiox12010024. [PMID: 36670886 PMCID: PMC9855176 DOI: 10.3390/antiox12010024] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 12/15/2022] [Accepted: 12/17/2022] [Indexed: 12/25/2022] Open
Abstract
Neuropathic pain is a chronic pain caused by a disease or damage to the somatosensory nervous system. The knowledge about the complete mechanisms is incomplete, but the role of oxidative compounds has been evaluated. In this context, we highlight the transient potential receptor vanilloid 4 (TRPV4), a non-selective cation channel, that can be activated by oxidated compounds. In clinical trials, the TRPV4 antagonist (GSK2798745) has been well-tolerated in healthy volunteers. The TRPV4 activation by oxidative compounds, such as hydrogen peroxide (H2O2) and nitric oxide (NO), has been researched in neuropathic pain models. Thus, the modulation of TRPV4 activation by decreasing oxidated compounds could represent a new pharmacological approach for neuropathic pain treatment. Most models evaluated the TRPV4 using knockout mice, antagonist or antisense treatments and detected mechanical allodynia, hyposmotic solution-induced nociception and heat hyperalgesia, but this channel is not involved in cold allodynia. Only H2O2 and NO were evaluated as TRPV4 agonists, so one possible target to reduce neuropathic pain should focus on reducing these compounds. Therefore, this review outlines how the TRPV4 channel represents an innovative target to tackle neuropathic pain signaling in models induced by trauma, surgery, chemotherapy, cancer, diabetes and alcohol intake.
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Five Traditional Chinese Medicine External Treatment Methods Combined with Mecobalamin for Diabetic Peripheral Neuropathy: A Network Meta-Analysis. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2022; 2022:4251022. [PMID: 36569342 PMCID: PMC9788892 DOI: 10.1155/2022/4251022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 11/20/2022] [Accepted: 12/05/2022] [Indexed: 12/23/2022]
Abstract
Background Diabetic peripheral neuropathy (DPN) is one of the most common chronic complications of diabetes. Traditional Chinese medicine (TCM) external treatment has been widely used in China as adjunctive treatment, and some small sample clinical studies have proved its effectiveness. However, due to the limited number of studies, we used network meta-analysis to compare the effectiveness of 5 commonly used external treatment methods of traditional Chinese medicine in the treatment of diabetic peripheral neuropathy. Methods We searched PubMed, EMBASE, The Cochrane Library, Web of Science, CNKI, CBM, WanFang Knowledge Service Platform, and VIP databases and collected and screened randomised controlled trials on the external treatment of traditional Chinese medicine combined with mecobalamin in the treatment of DPN according to the inclusion and exclusion criteria. The search period was from 2011 to May 2021. The quality of included studies was assessed using the revised Cochrane risk-of-bias tool for randomized trials. The outcome indicators are Toronto score, median nerve sensory conduction velocity, and median nerve motor conduction velocity. Results A total of 22 publications were included in the study. The results of the network meta-analysis showed that acupuncture combined with mecobalamin was superior to other TCM external treatments combined with mecobalamin in terms of decreasing the Toronto score (MD = -2.8, 95% CI: -5.2∼-0.49), improving median nerve sensory conduction velocity (MD = 3.6, 95% CI: 2.4∼4.9), and median nerve motor conduction velocity (MD = 4.5, 95% CI: 2.6∼6.5). The SUCRA value and probability ranking chart showed that among the three outcome indicators, acupuncture combined with mecobalamin was the best, followed by acupoint injection combined with mecobalamin. Conclusion In this network meta-analysis, acupuncture combined with mecobalamin shows the best results in the treatment of DPN, followed by acupoint injection combined with mecobalamin.
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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]
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Dawes NC, Anastasi JK. The Case for Moxibustion for Painful Syndromes: History, principles and rationale. CURRENT RESEARCH IN COMPLEMENTARY & ALTERNATIVE MEDICINE 2022; 6:153. [PMID: 36147245 PMCID: PMC9491495 DOI: 10.29011/2577-2201.100053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Traditional Chinese Medicine (TCM) has evolved over thousands of years. TCM practitioners use various approaches (such as acupuncture and tai chi) as well as herbal products to address health problems. Though lesser known in the west, the practice of Moxibustion is an integral part of Traditional East Asian Medicine. Moxibustion is an important non-invasive treatment that has shown to be beneficial in treating painful syndromes including neuropathy. It has been suggested that moxibustion may alleviate neuroinflammation by inhibiting NF-kB and by activating Nrf2. These anti-inflammatory and protective mechanisms could be key to exploring the use of moxibustion in treating other etiologies of neuropathy including HIV. There is ample scope for future study in this area and consideration of the history, development and practical applications of moxibustion therapy may be of help in this regard. This article seeks to explore the background, principles, and application of moxibustion in the clinical setting with particular emphasis on its potential for symptom management in the treatment of neuropathy and pain.
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Affiliation(s)
- Nigel C Dawes
- NYU Special Studies in Symptom Management, NY Kampo Institute, New York, NY, USA
| | - Joyce K Anastasi
- Special Studies in Symptom Management, Independence Foundation Endowed Professor, New York University, New York, NY, USA
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Zeng L, Guo J, Du P, Yu S, Yin H. Transcriptome sequencing reveals core regulation modules and gene signatures of Zusanli acupoints in response to different moxibustion warm stimulation in adjuvant arthritis rat. Hereditas 2022; 159:15. [PMID: 35193709 PMCID: PMC8862468 DOI: 10.1186/s41065-022-00221-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2021] [Accepted: 12/29/2021] [Indexed: 11/11/2022] Open
Abstract
Background The efficacy of moxibustion in treating rheumatoid arthritis is recognized, but its molecular mechanism is still unclear. This study aimed to characterize the molecular map and potential key genes in the process of different moxibustion warm at Zusanli acupoint treatment of adjuvant arthritis (AA) model. Methods AA rat model was induced by complete Freund’s adjuvant (CFA) and then accessed by foot swelling and thermal hyperalgesia test. Transcriptome sequencing, series test of cluster (STC) and weighted gene co-expression network analysis (WGCNA) were used in this study. Results CFA-induced inflammation, foot swelling, and pain in AA rats were significantly improved by moxibustion warm. Differentially expressed genes (DEGs) were screened in nine different comparison groups and a total of 4535 DEGs were identified, and these DEGs were preferentially clustered in inflammatory and immune-related pathways, such as MAPK signaling pathway. Only 1 DEG of heat shock protein 90, alpha (cytosolic), class A member 1 (Hsp90aa1) was shared in comparison groups of model with moxibustion treatment. STC analysis also revealed that Hsp90aa1 was increased in AA model, but decreased after 37 °C moxibustion intervention, and constantly decreased after 42 °C moxibustion treatment. GO and KEGG pathway analysis revealed that these genes enriched in inflammatory and immune-related pathways. Moreover, WGCNA identified that violet module was positively correlated with model temperature while negatively correlated with control, and the paleturquoise module was positively correlated with model. The violet and paleturquoise module gene were significantly enriched in MAPK signaling pathway. Importantly, Hsp90aa1 also played a central role in the violet module by interacting with multiple proteins. Conclusions Moxibustion warm improved AA in rat, and we obtained the transcriptome profile and excavate a critical gene of Hsp90aa1, and provided insight into gene signatures for moxibustion warm at Zusanli acupoint in AA rat. Supplementary Information The online version contains supplementary material available at 10.1186/s41065-022-00221-4.
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Affiliation(s)
- Li Zeng
- Department of Rehabilitation, Medical Center Hospital of QiongLai City, Chengdu, 611530, China
| | - Jing Guo
- Department of Acupuncture and Tuina, Chengdu University of Traditional Chinese Medicine, Chengdu, 610075, China
| | - Ping Du
- Department of Rehabilitation, Medical Center Hospital of QiongLai City, Chengdu, 611530, China
| | - Shuguang Yu
- Department of Acupuncture and Tuina, Chengdu University of Traditional Chinese Medicine, Chengdu, 610075, China
| | - Haiyan Yin
- Department of Acupuncture and Tuina, Chengdu University of Traditional Chinese Medicine, Chengdu, 610075, China.
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Abstract
BACKGROUND Diabetic peripheral neuropathy (DPN) is one of the most common complications of diabetes mellitus. The main clinical manifestations of DPN include pain, numbness, paraesthesia, and weakness of the lower limbs which often leads to diabetic foot ulceration, eventually resulting in amputation. Based on Traditional Chinese Medicine theory, moxibustion has a great effect on treating and preventing DPN. However, randomized clinical trials done to evaluate the efficacy of this treatment are still lacking. Hence, this study is carried out to evaluate the effectiveness and safety of moxibustion therapy on diabetic peripheral neuropathy. METHODS This study will be a pilot, interventional, randomized, 2-armed, parallel, singled-masked, controlled trial. A total of 40 diabetes mellitus patients with peripheral neuropathy will be recruited and assigned randomly into 2 groups (moxibustion group and waiting group) at a 1:1 ratio. This trial consists of an 8-week intervention period and a 4-week follow-up period. During the intervention period, the moxibustion group will take 3 moxibustion sessions per week, whereas no intervention will be done on the waiting group to act as the control group. The outcome will be assessed by an outcome assessor who is unaware of the group assignment. The primary outcome will be pain assessment measured with algometry, Leeds Assessment of Neuropathic Symptoms and Signs pain scale, visual analogue scale, and neuropathy pain scale. The secondary outcome will be an evaluation of functional performance capacity with 6 minutes walking test, evaluation of the Foot and Ankle Ability Measure, and serum HbA1c and albumin levels. DISCUSSION We hope that this trial will provide valuable insights on the efficacy of moxibustion in the management of diabetic peripheral neuropathy. TRIAL REGISTRATION ClinicalTrials.gov Registry No.: NCT04894461 (URL: https://clinicaltrials.gov/ct2/show/NCT04894461?term=NCT04894461&draw=2&rank=1) Registered on May 20, 2021.
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Tianyu Z, Xiaoli C, Yaru W, Min Z, Fengli Y, Kan H, Li C, Jing L. New tale on LianHuaQingWen: IL6R/IL6/IL6ST complex is a potential target for COVID-19 treatment. Aging (Albany NY) 2021; 13:23913-23935. [PMID: 34731090 PMCID: PMC8610116 DOI: 10.18632/aging.203666] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Accepted: 10/25/2021] [Indexed: 12/23/2022]
Abstract
LianHuaQingWen (LHQW) improves clinical symptoms and alleviates the severity of COVID-19, but the mechanism is unclear. This study aimed to investigate the potential molecular targets and mechanisms of LHQW in treating COVID-19 using a network pharmacology-based approach and molecular docking analysis. The main active ingredients, therapeutic targets of LHQW, and the pathogenic targets of COVID-19 were screened using the TCMSP, UniProt, STRING, and GeneCards databases. According to the “Drug-Ingredients-Targets-Disease” network, Interleukin 6 (IL6) was identified as the core target, and quercetin, luteolin, and wogonin as the active ingredients of LHQW associated with IL6. The response to lipopolysaccharide was the most significant biological process identified by gene ontology enrichment analysis, and AGE-RAGE signaling pathway activation was prominent based on the interaction between LHQW and COVID-19. Protein-protein docking analysis showed that IL6 receptor (IL6R)/IL6/IL6 receptor subunit beta (IL6ST) and Spike protein were mainly bound via conventional hydrogen bonds. Furthermore, protein-small molecule docking showed that all three active ingredients could bind stably in the binding model of IL6R/IL6 and IL6ST. Our findings suggest that LHQW may inhibit the lipopolysaccharide-mediated inflammatory response and regulate the AGE-RAGE signaling pathway through IL6. In addition, the N-terminal domain of the S protein of COVID-19 has a good binding activity to IL6ST, and quercetin and wogonin in LHQW may affect IL6ST-mediated IL6 signal transduction and a large number of signaling pathways downstream to other cytokines by directly affecting protein-protein interaction. These findings suggest the potential molecular mechanism by which LHQW inhibits COVID-19 through the regulation of IL6R/IL6/IL6ST.
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Affiliation(s)
- Zhao Tianyu
- Department of Pharmacology, College of Basic Medical Sciences, Jilin University, Changchun, Jilin Province 130021, People's Republic of China
| | - Cui Xiaoli
- Department of Pharmacology, College of Basic Medical Sciences, Jilin University, Changchun, Jilin Province 130021, People's Republic of China
| | - Wang Yaru
- Department of Pharmacology, College of Basic Medical Sciences, Jilin University, Changchun, Jilin Province 130021, People's Republic of China
| | - Zhang Min
- Department of Pharmacology, College of Basic Medical Sciences, Jilin University, Changchun, Jilin Province 130021, People's Republic of China
| | - Yue Fengli
- Department of Pharmacology, College of Basic Medical Sciences, Jilin University, Changchun, Jilin Province 130021, People's Republic of China
| | - He Kan
- Department of Pharmacology, College of Basic Medical Sciences, Jilin University, Changchun, Jilin Province 130021, People's Republic of China
| | - Chen Li
- Department of Pharmacology, College of Basic Medical Sciences, Jilin University, Changchun, Jilin Province 130021, People's Republic of China
| | - Li Jing
- Department of Pharmacology, College of Basic Medical Sciences, Jilin University, Changchun, Jilin Province 130021, People's Republic of China
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Li LJ, Shi YC, Luo MX, Zhao CL. Effects of moxibustion on Treg cells in sarcoma microenvironment. JOURNAL OF INTEGRATIVE MEDICINE-JIM 2021; 19:251-257. [PMID: 33642209 DOI: 10.1016/j.joim.2021.02.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Accepted: 11/17/2020] [Indexed: 11/26/2022]
Abstract
OBJECTIVE To investigate the therapeutic effect of moxibustion on sarcomas from mesenchymal tissues, which have a low response rate to chemotherapy and radiotherapy. METHODS S180 sarcoma cell line was inoculated in C57BL/6 mice to form transplanted tumor. Moxibustion therapy was directly applied at the transplanted tumor sites, at a distance of 3.0 cm, 10 min per session, till skin temperature reached 45 °C, once a day, for 14 consecutive days of intervention. After the mice were killed, serum was collected and used to detect concentrations of interleukin-10 (IL-10), transforming growth factor-β1 (TGF-β1), IL-4 and interferon-γ (IFN-γ) by Luminex liquid suspension chip. The numbers of Treg+ T cells and CD4+CD25+Forkhead Box P3 (Foxp3)+ T cells were detected by flow cytometry. Fluorescence in situ hybridization was used to analyze the changes of CD4, CD8, Foxp3 and TGF-β1 in the tumor microenvironment (TME). RESULTS Weight of S180 transplanted tumor in the control group was (2.03 ± 0.54) g, and that in the moxibustion group was (1.27 ± 0.29) g, which was statistically different (P = 0.023). The mean value of Foxp3+ T cells in the normal group was 2.01%, which increased to 3.63% after the formation of transplanted tumor, and decreased to 1.48% after moxibustion treatment. The moxibustion group also had reduced numbers of CD4+CD25+Foxp3+ T cells in the spleen of mice with transplanted tumor. The concentrations of IL-10, TGF-β1 and IL-4 decreased in the serum of mice with transplanted tumor, while the concentration of IFN-γ increased. Moxibustion was associated with downregulation in expression of Foxp3, IL-10 and TGF-β1 genes in the transplanted tumor, and increases in the gene expression of CD4+ T cells and CD8+ T cells in the TME. CONCLUSION Moxibustion may have therapeutic effects on sarcomas by reducing the number of Treg cells in the blood and controlling the infiltration of Treg cells in the TME.
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Affiliation(s)
- Li-Jun Li
- Department of Acupuncture, Guangdong Clifford Hospital, Guangzhou 511495, Guangdong Province, China
| | - Yu-Chong Shi
- School of Traditional Chinese Medicine, Jinan University, Guangzhou 510632, Guangdong Province, China
| | - Min-Xiang Luo
- Department of Acupuncture, Guangdong Clifford Hospital, Guangzhou 511495, Guangdong Province, China
| | - Chang-Lin Zhao
- Health Science College, Guangdong Pharmaceutical University, Guangzhou 510006, Guangdong Province, China.
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Zhu X, Chen Y, Xu X, Xu X, Lu Y, Huang X, Zhou J, Hu L, Wang J, Shen X. SP6616 as a Kv2.1 inhibitor efficiently ameliorates peripheral neuropathy in diabetic mice. EBioMedicine 2020; 61:103061. [PMID: 33096484 PMCID: PMC7581884 DOI: 10.1016/j.ebiom.2020.103061] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Revised: 09/20/2020] [Accepted: 09/24/2020] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Diabetic peripheral neuropathy (DPN) is a common complication of diabetes severely afflicting the patients, while there is yet no effective medication against this disease. As Kv2.1 channel functions potently in regulating neurological disorders, the present work was to investigate the regulation of Kv2.1 channel against DPN-like pathology of DPN model mice by using selective Kv2.1 inhibitor SP6616 (ethyl 5-(3-ethoxy-4-methoxyphenyl)-2-(4-hydroxy-3-methoxybenzylidene)-7-methyl-3-oxo-2,3-dihydro-5H-[1,3]thiazolo[3,2-a]pyrimidine-6-carboxylate) as a probe. METHODS STZ-induced type 1 diabetic mice with DPN (STZ mice) were defined at 12 weeks of age (4 weeks after STZ injection) through behavioral tests, and db/db (BKS Cg-m+/+Leprdb/J) type 2 diabetic mice with DPN (db/db mice) were at 18 weeks of age. SP6616 was administered daily via intraperitoneal injection for 4 weeks. The mechanisms underlying the amelioration of SP6616 on DPN-like pathology were investigated by RT-PCR, western blot and immunohistochemistry technical approaches against diabetic mice, and verified against the STZ mice with Kv2.1 knockdown in dorsal root ganglion (DRG) tissue by injection of adeno associated virus AAV9-Kv2.1-RNAi. Amelioration of SP6616 on the pathological behaviors of diabetic mice was assessed against tactile allodynia, thermal sensitivity and motor nerve conduction velocity (MNCV). FINDINGS SP6616 treatment effectively ameliorated the threshold of mechanical stimuli, thermal sensitivity and MNCV of diabetic mice. Mechanism research results indicated that SP6616 suppressed Kv2.1 expression, increased the number of intraepidermal nerve fibers (IENFs), improved peripheral nerve structure and vascular function in DRG tissue. In addition, SP6616 improved mitochondrial dysfunction through Kv2.1/CaMKKβ/AMPK/PGC-1α pathway, repressed inflammatory response by inhibiting Kv2.1/NF-κB signaling and alleviated apoptosis of DRG neuron through Kv2.1-mediated regulation of Bcl-2 family proteins and Caspase-3 in diabetic mice. INTERPRETATION Our work has highly supported the beneficial of Kv2.1 inhibition in ameliorating DPN-like pathology and highlighted the potential of SP6616 in the treatment of DPN. FUNDING Please see funding sources.
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Affiliation(s)
- Xialin Zhu
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Yun Chen
- Department of Medicinal Chemistry, China Pharmaceutical University, 24 Tongjia Xiang, Nanjing 210009, China
| | - Xu Xu
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Xiaoju Xu
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Yin Lu
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Xi Huang
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Jinpei Zhou
- Department of Medicinal Chemistry, China Pharmaceutical University, 24 Tongjia Xiang, Nanjing 210009, China.
| | - Lihong Hu
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Jiaying Wang
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing 210023, China.
| | - Xu Shen
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing 210023, China.
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Li Y, Gao Y, Gong Y, Guo Y, Wang L, Liu Q, Chen F, Zhang T. Treatment with Tang-luo-ning altered the microRNA expression profile in rats with diabetic peripheral neuropathy. Bioengineered 2020; 11:841-851. [PMID: 32718271 PMCID: PMC8291862 DOI: 10.1080/21655979.2020.1797282] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
Abstract
Tang-luo-ning (TLN) is a traditional Chinese herbal recipe that has been used to treat diabetic peripheral neuropathy (DPN); nevertheless, the underlying mechanism remains unclear. This study was aimed to investigate the microRNA (miRNA) expression profile in diabetic rats treated with TLN, and the target genes were predicted. Male Sprague-Dawley rats were randomly divided into control, diabetes, and TLN-treated diabetes groups. Diabetes was induced with streptozotocin, and TLN (5 g/kg/day) was orally given for eight weeks. Then, the sciatic nerves were harvested for miRNA microarray analyses. The differentially expressed miRNAs and their target genes were analyzed. Compared with the control rats, 24 miRNAs were significantly upregulated, and 59 were downregulated in the sciatic nerves of the diabetic rats by more than two folds (all P < 0.05). In TLN-treated diabetes rats, 26 miRNAs were upregulated, and 14 were downregulated compared with diabetic rats without TLN treatment (all P < 0.05). DPN-induced alterations of the miRNA profile were reversed by the TLN treatment. A total of 1402 target genes were screened. In GO analysis, genes in localization, cytoplasm, and protein binding processes were enriched, and the most significantly enriched pathways included the neurotrophin, Fc epsilon RI, and Wnt signaling pathways. Further analyses revealed that DVL1 and NTF3 genes were involved in these pathways. Our findings indicate that TLN may affect the Wnt and neurotrophin pathways by acting on DVL1 and NTF3 genes.
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Affiliation(s)
- Yixiao Li
- Department of Endocrinology, Dongfang Hospital, Beijing University of Chinese Medicine , Beijing, China
| | - Yanbin Gao
- School of Traditional Chinese Medicine, Capital Medical University , Beijing, China
| | - Yanbing Gong
- Department of Endocrinology, Dongfang Hospital, Beijing University of Chinese Medicine , Beijing, China
| | - Yuxin Guo
- Department of Endocrinology, Dongfang Hospital, Beijing University of Chinese Medicine , Beijing, China
| | - Liying Wang
- Department of Endocrinology, Dongfang Hospital, Beijing University of Chinese Medicine , Beijing, China
| | - Qin Liu
- Department of Endocrinology, Dongfang Hospital, Beijing University of Chinese Medicine , Beijing, China
| | - Feng Chen
- Department of Endocrinology, Dongfang Hospital, Beijing University of Chinese Medicine , Beijing, China
| | - Taojing Zhang
- Department of Endocrinology, Dongfang Hospital, Beijing University of Chinese Medicine , Beijing, China
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Villarreal CF, Santos DS, Lauria PSS, Gama KB, Espírito-Santo RF, Juiz PJL, Alves CQ, David JM, Soares MBP. Bergenin Reduces Experimental Painful Diabetic Neuropathy by Restoring Redox and Immune Homeostasis in the Nervous System. Int J Mol Sci 2020; 21:ijms21144850. [PMID: 32659952 PMCID: PMC7420298 DOI: 10.3390/ijms21144850] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2020] [Revised: 05/03/2020] [Accepted: 05/06/2020] [Indexed: 02/07/2023] Open
Abstract
Diabetic neuropathy is a frequent complication of diabetes. Symptoms include neuropathic pain and sensory alterations—no effective treatments are currently available. This work characterized the therapeutic effect of bergenin in a mouse (C57/BL6) model of streptozotocin-induced painful diabetic neuropathy. Nociceptive thresholds were assessed by the von Frey test. Cytokines, antioxidant genes, and oxidative stress markers were measured in nervous tissues by ELISA, RT-qPCR, and biochemical analyses. Single (3.125–25 mg/kg) or multiple (25 mg/kg; twice a day for 14 days) treatments with bergenin reduced the behavioral signs of diabetic neuropathy in mice. Bergenin reduced both nitric oxide (NO) production in vitro and malondialdehyde (MDA)/nitrite amounts in vivo. These antioxidant properties can be attributed to the modulation of gene expression by the downregulation of inducible nitric oxide synthase (iNOS) and upregulation of glutathione peroxidase and Nrf2 in the nervous system. Bergenin also modulated the pro- and anti-inflammatory cytokines production in neuropathic mice. The long-lasting antinociceptive effect induced by bergenin in neuropathic mice, was associated with a shift of the cytokine balance toward anti-inflammatory predominance and upregulation of antioxidant pathways, favoring the reestablishment of redox and immune homeostasis in the nervous system. These results point to the therapeutic potential of bergenin in the treatment of painful diabetic neuropathy.
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Affiliation(s)
- Cristiane F. Villarreal
- Faculdade de Farmácia, Universidade Federal da Bahia, CEP 40.170-115 Salvador, Brazil; (D.S.S.); (P.S.S.L.); (R.F.E.-S.)
- Instituto Gonçalo Moniz, Fundação Oswaldo Cruz, CEP 40.296-710 Salvador, Brazil; (K.B.G.); (M.B.P.S.)
- Correspondence: ; Tel.: +55-(71)3283-6933
| | - Dourivaldo S. Santos
- Faculdade de Farmácia, Universidade Federal da Bahia, CEP 40.170-115 Salvador, Brazil; (D.S.S.); (P.S.S.L.); (R.F.E.-S.)
| | - Pedro S. S. Lauria
- Faculdade de Farmácia, Universidade Federal da Bahia, CEP 40.170-115 Salvador, Brazil; (D.S.S.); (P.S.S.L.); (R.F.E.-S.)
| | - Kelly B. Gama
- Instituto Gonçalo Moniz, Fundação Oswaldo Cruz, CEP 40.296-710 Salvador, Brazil; (K.B.G.); (M.B.P.S.)
| | - Renan F. Espírito-Santo
- Faculdade de Farmácia, Universidade Federal da Bahia, CEP 40.170-115 Salvador, Brazil; (D.S.S.); (P.S.S.L.); (R.F.E.-S.)
- Instituto Gonçalo Moniz, Fundação Oswaldo Cruz, CEP 40.296-710 Salvador, Brazil; (K.B.G.); (M.B.P.S.)
| | - Paulo J. L. Juiz
- Universidade Federal do Recôncavo da Bahia, CEP 44.042-280 Feira de Santana, Brazil;
| | - Clayton Q. Alves
- Departamento de Ciências Exatas, Universidade Estadual de Feira de Santana, CEP 44.036-336 Feira de Santana, Brazil;
| | - Jorge M. David
- Instituto de Química, Universidade Federal da Bahia, CEP 40.170-280 Salvador, Brazil;
| | - Milena B. P. Soares
- Instituto Gonçalo Moniz, Fundação Oswaldo Cruz, CEP 40.296-710 Salvador, Brazil; (K.B.G.); (M.B.P.S.)
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