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Song G, Wang J, Liu J, Ruan Y. Dimethyl fumarate ameliorates erectile dysfunction in bilateral cavernous nerve injury rats by inhibiting oxidative stress and NLRP3 inflammasome-mediated pyroptosis of nerve via activation of Nrf2/HO-1 signaling pathway. Redox Biol 2023; 68:102938. [PMID: 37931471 PMCID: PMC10652210 DOI: 10.1016/j.redox.2023.102938] [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: 09/02/2023] [Revised: 10/14/2023] [Accepted: 10/17/2023] [Indexed: 11/08/2023] Open
Abstract
OBJECTIVE To investigate the therapeutic potential of dimethyl fumarate (DMF) in improving erectile function of bilateral cavernous nerve injury (BCNI) rats, along with elucidating its underlying mechanisms. METHODS A BCNI rat model was established by clamping bilateral cavernous nerve (CN). DMF was given by gavage at low (20 mg/kg/day) and high (40 mg/kg/day) dosages for a duration of 4 weeks. Erectile function was assessed by electrical stimulation of CN. Penis and CN tissues were collected for subsequent analysis. Additionally, PC-12 cell line was used to verify the mechanism of DMF in vitro. Nfe2l2 or Ho-1 gene knockdown PC-12 cell lines were constructed by lentiviral transfection, respectively. A damaged cell model was induced using H2O2. And then molecular biological methods were employed to analyze cellular molecules and proteins. RESULTS DMF administration for 4 weeks led to improvements in erectile function, reduced fibrosis of penis corpus cavernosum in BCNI rats. The morphology of CN was improved and the number of nerve fibers increased. Furthermore, the levels of nNOS, NO, and cGMP were increased, while Ca2+ was decreased in penis corpus cavernosum. Notably, the levels of ROS, 3-NT and NLRP3 inflammasomes production were reduced, alongside increased expression of Nrf2 and HO-1 proteins in the dorsal penile nerve (DPN) and CN. In vitro, DMF increased cell viability, reduced ROS level, promoted SOD, diminished 3-NT, MDA and DNA damage markers, and inhibited the activation of NLRP3 inflammasomes in H2O2 induced PC-12 cells. Nfe2l2 knockdown and Ho-1 knockdown significantly attenuated the protective effect of DMF, respectively. Furthermore, inhibition of ROS production by N-acetylcysteine led to a reduction in NLRP3 inflammasome activation in H2O2 induced PC-12 cells. CONCLUSIONS DMF improved erectile function of BCNI rats by protecting nerves through inhibiting oxidative stress and the activation of NLRP3 inflammasome-mediated pyroptosis via activation of Nrf2/HO-1 pathway.
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Affiliation(s)
- Guoda Song
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China; Second Clinical College, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Jiaxin Wang
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Jihong Liu
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China.
| | - Yajun Ruan
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China.
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Islam F, Bepary S, Nafady MH, Islam MR, Emran TB, Sultana S, Huq MA, Mitra S, Chopra H, Sharma R, Sweilam SH, Khandaker MU, Idris AM. Polyphenols Targeting Oxidative Stress in Spinal Cord Injury: Current Status and Future Vision. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:8741787. [PMID: 36046682 PMCID: PMC9423984 DOI: 10.1155/2022/8741787] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Revised: 07/03/2022] [Accepted: 08/03/2022] [Indexed: 02/07/2023]
Abstract
A spinal cord injury (SCI) occurs when the spinal cord is deteriorated or traumatized, leading to motor and sensory functions lost even totally or partially. An imbalance within the generation of reactive oxygen species and antioxidant defense levels results in oxidative stress (OS) and neuroinflammation. After SCI, OS and occurring pathways of inflammations are significant strenuous drivers of cross-linked dysregulated pathways. It emphasizes the significance of multitarget therapy in combating SCI consequences. Polyphenols, which are secondary metabolites originating from plants, have the promise to be used as alternative therapeutic agents to treat SCI. Secondary metabolites have activity on neuroinflammatory, neuronal OS, and extrinsic axonal dysregulated pathways during the early stages of SCI. Experimental and clinical investigations have noted the possible importance of phenolic compounds as important phytochemicals in moderating upstream dysregulated OS/inflammatory signaling mediators and axonal regeneration's extrinsic pathways after the SCI probable significance of phenolic compounds as important phytochemicals in mediating upstream dysregulated OS/inflammatory signaling mediators. Furthermore, combining polyphenols could be a way to lessen the effects of SCI.
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Affiliation(s)
- Fahadul Islam
- Department of Pharmacy, Faculty of Allied Health Sciences, Daffodil International University, Dhaka 1207, Bangladesh
| | - Sristy Bepary
- Department of Pharmacy, Faculty of Allied Health Sciences, Daffodil International University, Dhaka 1207, Bangladesh
| | - Mohamed H. Nafady
- Faculty of Applied Health Science Technology, Misr University for Science and Technology, Giza, Egypt
| | - Md. Rezaul Islam
- Department of Pharmacy, Faculty of Allied Health Sciences, Daffodil International University, Dhaka 1207, Bangladesh
| | - Talha Bin Emran
- Department of Pharmacy, BGC Trust University Bangladesh, Chittagong 4381, Bangladesh
| | - Sharifa Sultana
- Department of Pharmacy, Faculty of Allied Health Sciences, Daffodil International University, Dhaka 1207, Bangladesh
| | - Md. Amdadul Huq
- Department of Food and Nutrition, Chung Ang University, Anseong-Si, Gyeonggi-Do 17546, Republic of Korea
| | - Saikat Mitra
- Department of Pharmacy, Faculty of Pharmacy, University of Dhaka, Dhaka 1000, Bangladesh
| | - Hitesh Chopra
- Chitkara College of Pharmacy, Chitkara University, Punjab 140401, India
| | - Rohit Sharma
- Department of Rasashastra and Bhaishajya Kalpana, Faculty of Ayurveda, Institute of Medical Sciences, Banaras Hindu University, Varanasi, Uttar Pradesh 221005, India
| | - Sherouk Hussein Sweilam
- Department of Pharmacognosy, College of Pharmacy, Prince Sattam Bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia
- Department of Pharmacognosy, Faculty of Pharmacy, Egyptian Russian University, Cairo-Suez Road, Badr City 11829, Egypt
| | - Mayeen Uddin Khandaker
- Centre for Applied Physics and Radiation Technologies, School of Engineering and Technology, Sunway University, 47500 Bandar Sunway, Selangor, Malaysia
| | - Abubakr M. Idris
- Department of Chemistry, College of Science, King Khalid University, Abha 62529, Saudi Arabia
- Research Center for Advanced Materials Science (RCAMS), King Khalid University, Abha 62529, Saudi Arabia
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Fakhri S, Abbaszadeh F, Moradi SZ, Cao H, Khan H, Xiao J. Effects of Polyphenols on Oxidative Stress, Inflammation, and Interconnected Pathways during Spinal Cord Injury. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:8100195. [PMID: 35035667 PMCID: PMC8759836 DOI: 10.1155/2022/8100195] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Accepted: 12/11/2021] [Indexed: 02/05/2023]
Abstract
Despite the progression in targeting the complex pathophysiological mechanisms of neurodegenerative diseases (NDDs) and spinal cord injury (SCI), there is a lack of effective treatments. Moreover, conventional therapies suffer from associated side effects and low efficacy, raising the need for finding potential alternative therapies. In this regard, a comprehensive review was done regarding revealing the main neurological dysregulated pathways and providing alternative therapeutic agents following SCI. From the mechanistic point, oxidative stress and inflammatory pathways are major upstream orchestras of cross-linked dysregulated pathways (e.g., apoptosis, autophagy, and extrinsic mechanisms) following SCI. It urges the need for developing multitarget therapies against SCI complications. Polyphenols, as plant-derived secondary metabolites, have the potential of being introduced as alternative therapeutic agents to pave the way for treating SCI. Such secondary metabolites presented modulatory effects on neuronal oxidative stress, neuroinflammatory, and extrinsic axonal dysregulated pathways in the onset and progression of SCI. In the present review, the potential role of phenolic compounds as critical phytochemicals has also been revealed in regulating upstream dysregulated oxidative stress/inflammatory signaling mediators and extrinsic mechanisms of axonal regeneration after SCI in preclinical and clinical studies. Additionally, the coadministration of polyphenols and stem cells has shown a promising strategy for improving post-SCI complications.
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Affiliation(s)
- Sajad Fakhri
- Pharmaceutical Sciences Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah 6734667149, Iran
| | - Fatemeh Abbaszadeh
- Department of Neuroscience, Faculty of Advanced Technologies in Medical Sciences, Iran University of Medical Sciences, Tehran, Iran
- Neurobiology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Seyed Zachariah Moradi
- Pharmaceutical Sciences Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah 6734667149, Iran
- Medical Biology Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah 6734667149, Iran
| | - Hui Cao
- Nutrition and Bromatology Group, Department of Analytical Chemistry and Food Science, Faculty of Food Science and Technology, University of Vigo-Ourense Campus, E-32004 Ourense, Spain
| | - Haroon Khan
- Department of Pharmacy, Abdul Wali Khan University Mardan, 23200, Pakistan
| | - Jianbo Xiao
- Nutrition and Bromatology Group, Department of Analytical Chemistry and Food Science, Faculty of Food Science and Technology, University of Vigo-Ourense Campus, E-32004 Ourense, Spain
- Institute of Food Safety and Nutrition, Jinan University, Guangzhou 510632, China
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Wang G, Chen S, Shao Z, Li Y, Wang W, Mao L, Li J, Mei X. Metformin alleviates hydrogen peroxide-induced inflammation and oxidative stress via inhibiting P2X7R signaling in spinal cord tissue cells neurons. Can J Physiol Pharmacol 2021; 99:768-774. [PMID: 33201730 DOI: 10.1139/cjpp-2020-0373] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Metformin, the first medication that is often prescribed for the treatment of type 2 diabetes mellitus, was recently found to be neuroprotective. To study the mechanism underlying the neuroprotective effect of metformin, we pretreated primary spinal cord neurons with 50 µM or 100 µM metformin for 2 h prior to treatment with hydrogen peroxide (H2O2) for up to 48 h. Our results showed that H2O2 increased the expression of purinergic receptor P2X7 (P2X7R) in spinal cord neurons, which promoted the downstream pro-inflammatory cytokines release and oxidative stress. We found that metformin could reverse these pro-inflammatory and pro-oxidative effects of H2O2. Besides, P2X7R knockdown by siRNA suppressed H2O2-induced pro-inflammatory cytokine release and oxidative stress response. In conclusion, our results show that metformin can alleviate H2O2-induced inflammation and oxidative stress via modulating the P2X7R signaling pathway.
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Affiliation(s)
- Gang Wang
- Department of Orthopedics, First Affiliated Hospital of Jinzhou Medical University, Jinzhou City, 121000, China
- Department of Orthopedic, Maanshan People's Hospital, Ma'anshan City, China
| | - Shurui Chen
- Jinzhou Medical University, Jinzhou City, 121000, China
| | - Zhenya Shao
- Department of Orthopedics, First Affiliated Hospital of Jinzhou Medical University, Jinzhou City, 121000, China
| | - Yankun Li
- Department of Orthopedics, First Affiliated Hospital of Jinzhou Medical University, Jinzhou City, 121000, China
| | - Wei Wang
- Department of Orthopedics, First Affiliated Hospital of Jinzhou Medical University, Jinzhou City, 121000, China
| | - Liang Mao
- Department of Oncology, Key Laboratory of Medical Tissue Engineering of Liaoning Province, First Affiliated Hospital of Jinzhou Medical University, Jinzhou City, China
| | - Jian Li
- Department of Orthopedic, Maanshan People's Hospital, Ma'anshan City, China
| | - Xifan Mei
- Department of Orthopedics, First Affiliated Hospital of Jinzhou Medical University, Jinzhou City, 121000, China
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Akbarialiabad H, Dahroud MD, Khazaei MM, Razmeh S, Zarshenas MM. Green Tea, A Medicinal Food with Promising Neurological Benefits. Curr Neuropharmacol 2021; 19:349-359. [PMID: 32469701 PMCID: PMC8033961 DOI: 10.2174/1570159x18666200529152625] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Revised: 05/05/2020] [Accepted: 05/25/2020] [Indexed: 02/07/2023] Open
Abstract
Neurological disorders and their sequelae, as of the widespread and critical humans’ complications, affect the body's nervous systems, organ functions, and behaviors. According to WHO, neurological disorders are currently predicted to affect more than one billion people globally. It is well-established that complementary medicine is one of the high accepted interventions that could have been considered for the management of neurological ailments. The current review aimed to compile all the crucial data reporting the investigation on the conspicuous intervention of green tea (made of Camellia sinensis) and related lead compounds (especially l-theanine, epigallocatechin-3-gallate, epicatechin-3-gallate, epicatechin, and epigallocatechin) for their neurological activities, mechanisms of action, and clinical properties. According to the documents, green tea exhibits antidepressant, anti-neurodegenerative (e.g., anti-Parkinson and anti-Alzheimer), as well as neuroprotective effects.Chief among them, for offering novel work, it is worth focusing on several related assessments with great attention to more extensive standardized clinical trials, and subsequently more in-depth pharmacokinetic studies to safely introduce this beneficial medicinal food as a neuro-effective agent.
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Affiliation(s)
- Hossein Akbarialiabad
- Medicinal Plants Processing Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mohammad Dahri Dahroud
- Department of Phytopharmaceuticals (Traditional Pharmacy), School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mohammad M Khazaei
- Department of Phytopharmaceuticals (Traditional Pharmacy), School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Saeed Razmeh
- Neurology Research center, Department of Neurology, Yasuj University of Medical Sciences, Yasuj, Iran
| | - Mohammad M Zarshenas
- Medicinal Plants Processing Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
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Fedullo AL, Ciccotti M, Giannotta P, Alviti F, Bernardi M, Raguzzini A, Toti E, Sciarra T, Peluso I. Hormetic Effects of Bioactive Compounds from Foods, Beverages, and Food Dressing: The Potential Role in Spinal Cord Injury. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2021; 2021:6615752. [PMID: 33747346 PMCID: PMC7943269 DOI: 10.1155/2021/6615752] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Revised: 02/13/2021] [Accepted: 02/20/2021] [Indexed: 01/18/2023]
Abstract
Spinal cord injury (SCI) is a damage or trauma to the spinal cord resulting in a total or partial loss of motor and sensory function. SCI is characterized by a disequilibrium between the production of reactive oxygen species and the levels of antioxidant defences, causing oxidative stress and neuroinflammation. This review is aimed at highlighting the hormetic effects of some compounds from foods, beverages, and food dressing that are able to reduce oxidative stress in patients with SCI. Although curcumin, ginseng, and green tea have been proposed for SCI management, low levels of antioxidant vitamins have been reported in individuals with SCI. Mediterranean diet includes food rich in vitamins and antioxidants. Moreover, food dressing, including spices, herbs, and extra virgin olive oil (EVOO), contains multiple components with hormetic effects. The latter involves the activation of the nuclear factor erythroid-derived 2, consequently increasing the antioxidant enzymes and decreasing inflammation. Furthermore, EVOO improves the bioavailability of carotenoids and could be a delivery system for bioactive compounds. In conclusion, Mediterranean dressing in addition to plant foods can have an important effect on redox balance in individuals with SCI.
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Affiliation(s)
- Anna Lucia Fedullo
- Research Centre for Food and Nutrition, Council for Agricultural Research and Economics (CREA-AN), Rome, Italy
| | | | | | - Federica Alviti
- Department of Anatomy, Histology, Forensic Medicine and Orthopedics, Board of Physical Medicine and Rehabilitation, Sapienza University of Rome, Rome, Italy
| | - Marco Bernardi
- Department of Physiology and Pharmacology “V. Erspamer”, Sapienza University of Rome, Rome 00185, Italy
| | - Anna Raguzzini
- Research Centre for Food and Nutrition, Council for Agricultural Research and Economics (CREA-AN), Rome, Italy
| | - Elisabetta Toti
- Research Centre for Food and Nutrition, Council for Agricultural Research and Economics (CREA-AN), Rome, Italy
| | - Tommaso Sciarra
- Joint Veteran Center, Scientific Department, Army Medical Center, Rome, Italy
| | - Ilaria Peluso
- Research Centre for Food and Nutrition, Council for Agricultural Research and Economics (CREA-AN), Rome, Italy
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7
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Abbaszadeh F, Fakhri S, Khan H. Targeting apoptosis and autophagy following spinal cord injury: Therapeutic approaches to polyphenols and candidate phytochemicals. Pharmacol Res 2020; 160:105069. [PMID: 32652198 DOI: 10.1016/j.phrs.2020.105069] [Citation(s) in RCA: 76] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Revised: 06/28/2020] [Accepted: 07/03/2020] [Indexed: 12/11/2022]
Abstract
Spinal cord injury (SCI) is a neurological disorder associated with the loss of sensory and motor function. Understanding the precise dysregulated signaling pathways, especially apoptosis and autophagy following SCI, is of vital importance in developing innovative therapeutic targets and treatments. The present study lies in the fact that it reveals the precise dysregulated signaling mediators of apoptotic and autophagic pathways following SCI and also examines the effects of polyphenols and other candidate phytochemicals. It provides new insights to develop new treatments for post-SCI complications. Accordingly, a comprehensive review was conducted using electronic databases including, Scopus, Web of Science, PubMed, and Medline, along with the authors' expertise in apoptosis and autophagy as well as their knowledge about the effects of polyphenols and other phytochemicals on SCI pathogenesis. The primary mechanical injury to spinal cord is followed by a secondary cascade of apoptosis and autophagy that play critical roles during SCI. In terms of pharmacological mechanisms, caspases, Bax/Bcl-2, TNF-α, and JAK/STAT in apoptosis along with LC3 and Beclin-1 in autophagy have shown a close interconnection with the inflammatory pathways mainly glutamatergic, PI3K/Akt/mTOR, ERK/MAPK, and other cross-linked mediators. Besides, apoptotic pathways have been shown to regulate autophagy mediators and vice versa. Prevailing evidence has highlighted the importance of modulating these signaling mediators/pathways by polyphenols and other candidate phytochemicals post-SCI. The present review provides dysregulated signaling mediators and therapeutic targets of apoptotic and autophagic pathways following SCI, focusing on the modulatory effects of polyphenols and other potential phytochemical candidates.
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Affiliation(s)
- Fatemeh Abbaszadeh
- Department of Neuroscience, Faculty of Advanced Technologies in Medical Sciences, Iran University of Medical Sciences, Tehran, Iran; Neurobiology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Sajad Fakhri
- Pharmaceutical Sciences Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah 6734667149, Iran.
| | - Haroon Khan
- Department of Pharmacy, Abdul Wali Khan University Mardan, 23200, Pakistan.
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Yessenkyzy A, Saliev T, Zhanaliyeva M, Masoud AR, Umbayev B, Sergazy S, Krivykh E, Gulyayev A, Nurgozhin T. Polyphenols as Caloric-Restriction Mimetics and Autophagy Inducers in Aging Research. Nutrients 2020; 12:E1344. [PMID: 32397145 PMCID: PMC7285205 DOI: 10.3390/nu12051344] [Citation(s) in RCA: 57] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Revised: 04/16/2020] [Accepted: 04/16/2020] [Indexed: 02/06/2023] Open
Abstract
It has been thought that caloric restriction favors longevity and healthy aging where autophagy plays a vital role. However, autophagy decreases during aging and that can lead to the development of aging-associated diseases such as cancer, diabetes, neurodegeneration, etc. It was shown that autophagy can be induced by mechanical or chemical stress. In this regard, various pharmacological compounds were proposed, including natural polyphenols. Apart from the ability to induce autophagy, polyphenols, such as resveratrol, are capable of modulating the expression of pro- and anti-apoptotic factors, neutralizing free radical species, affecting mitochondrial functions, chelating redox-active transition metal ions, and preventing protein aggregation. Moreover, polyphenols have advantages compared to chemical inducers of autophagy due to their intrinsic natural bio-compatibility and safety. In this context, polyphenols can be considered as a potential therapeutic tool for healthy aging either as a part of a diet or as separate compounds (supplements). This review discusses the epigenetic aspect and the underlying molecular mechanism of polyphenols as an anti-aging remedy. In addition, the recent advances of studies on NAD-dependent deacetylase sirtuin-1 (SIRT1) regulation of autophagy, the role of senescence-associated secretory phenotype (SASP) in cells senescence and their regulation by polyphenols have been highlighted as well. Apart from that, the review also revised the latest information on how polyphenols can help to improve mitochondrial function and modulate apoptosis (programmed cell death).
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Affiliation(s)
- Assylzhan Yessenkyzy
- Research Institute of Fundamental and Applied Medicine named after B. Atchabarov, S.D. Asfendiyarov Kazakh National Medical University, Almaty 050000, Kazakhstan; (A.Y.); (T.N.)
| | - Timur Saliev
- Research Institute of Fundamental and Applied Medicine named after B. Atchabarov, S.D. Asfendiyarov Kazakh National Medical University, Almaty 050000, Kazakhstan; (A.Y.); (T.N.)
| | - Marina Zhanaliyeva
- Department of Human Anatomy, NSC “Medical University of Astana”, Nur-Sultan 010000, Kazakhstan;
| | - Abdul-Razak Masoud
- Department of Biological Sciences, Louisiana Tech University, Ruston, LA 71270, USA;
| | - Bauyrzhan Umbayev
- National Laboratory Astana, Nazarbayev University, Nur-Sultan 010000, Kazakhstan; (B.U.); (S.S.); (A.G.)
| | - Shynggys Sergazy
- National Laboratory Astana, Nazarbayev University, Nur-Sultan 010000, Kazakhstan; (B.U.); (S.S.); (A.G.)
| | - Elena Krivykh
- Khanty-Mansiysk State Medical Academy, Tyumen Region, Khanty-Mansiysk Autonomous Okrug—Ugra, Khanty-Mansiysk 125438, Russia;
| | - Alexander Gulyayev
- National Laboratory Astana, Nazarbayev University, Nur-Sultan 010000, Kazakhstan; (B.U.); (S.S.); (A.G.)
| | - Talgat Nurgozhin
- Research Institute of Fundamental and Applied Medicine named after B. Atchabarov, S.D. Asfendiyarov Kazakh National Medical University, Almaty 050000, Kazakhstan; (A.Y.); (T.N.)
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Chen Z, Chen G, Zhou K, Zhang P, Ren X, Mei X. Toxicity of food sweetener-sodium cyclamate on osteoblasts cells. Biochem Biophys Res Commun 2018; 508:507-511. [PMID: 30509495 DOI: 10.1016/j.bbrc.2018.11.172] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2018] [Accepted: 11/27/2018] [Indexed: 11/30/2022]
Abstract
In this paper, the effect of commonly used food sweetener (sodium cyclamate) on the proliferation and differentiation of osteoblasts has been researched. The morophology change of osteoblasts was investigated by confocal laser scanning microscopy. Cell viability was studied by MTT analysis. BMP2 expression was analyzed by western blot and immunofluorescence. Mineralization ability of osteoblasts was researched by using alizarin red staining method. The results indicate that a very low concentration (0.06 μM) of sodium cyclamate can curle and fold microfilament and microtubule of osteoblasts. The increase addition of sodium cyclamate resulted significantly decrease of cells viability. The expression of bone morphogenetic protein-2 (BMP2) was seriously suppressed by sodium cyclamate. Alizarin Red staining experiment revealed that sodium cyclamate decreased the mineralization ability of osteoblasts. The present results suggest that sodium cyclamate can seriously inhibit the proliferation and differentiation of osteoblasts.
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Affiliation(s)
- Zhenhua Chen
- Jinzhou Medical University, Jinzhou, 121001, PR China.
| | - Guanyu Chen
- Jinzhou Medical University, Jinzhou, 121001, PR China
| | - Kang Zhou
- Jinzhou Medical University, Jinzhou, 121001, PR China
| | - Peng Zhang
- Jinzhou Medical University, Jinzhou, 121001, PR China
| | - Xiuli Ren
- Jinzhou Medical University, Jinzhou, 121001, PR China.
| | - Xifan Mei
- Jinzhou Medical University, Jinzhou, 121001, PR China.
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11
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Zhao ZK, Yu HL, Liu B, Wang H, Luo Q, Ding XG. Antioxidative mechanism of Lycium barbarum polysaccharides promotes repair and regeneration following cavernous nerve injury. Neural Regen Res 2016; 11:1312-21. [PMID: 27651780 PMCID: PMC5020831 DOI: 10.4103/1673-5374.189197] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
Polysaccharides extracted from Lycium barbarum exhibit antioxidant properties. We hypothesized that these polysaccharides resist oxidative stress-induced neuronal damage following cavernous nerve injury. In this study, rat models were intragastrically administered Lycium barbarum polysaccharides for 2 weeks at 1, 7, and 14 days after cavernous nerve injury. Serum superoxide dismutase and glutathione peroxidase activities significantly increased at 1 and 2 weeks post-injury. Serum malondialdehyde levels decreased at 2 and 4 weeks. At 12 weeks, peak intracavernous pressure, the number of myelinated axons and nicotinamide adenine dinucleotide phosphate-diaphorase-positive nerve fibers, levels of phospho-endothelial nitric oxide synthase protein and 3-nitrotyrosine were higher in rats administered at 1 day post-injury compared with rats administered at 7 and 14 days post-injury. These findings suggest that application of Lycium barbarum polysaccharides following cavernous nerve crush injury effectively promotes nerve regeneration and erectile functional recovery. This neuroregenerative effect was most effective in rats orally administered Lycium barbarum polysaccharides at 1 day after cavernous nerve crush injury.
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Affiliation(s)
- Zhan-Kui Zhao
- Department of Urology, Zhongnan Hospital, Wuhan University, Wuhan, Hubei Province, China; Department of Urology, Affiliated Hospital of Jining Medical University, Jining, Shandong Province, China
| | - Hong-Lian Yu
- Department of Medical Biochemistry, Basic Medical School, Jining Medical University, Jining, Shandong Province, China
| | - Bo Liu
- Department of Urology, Zhongnan Hospital, Wuhan University, Wuhan, Hubei Province, China
| | - Hui Wang
- Department of Urology, Zhongnan Hospital, Wuhan University, Wuhan, Hubei Province, China
| | - Qiong Luo
- Department of Nutrition and Food Health, School of Public Health, Wuhan University, Wuhan, Hubei Province, China
| | - Xie-Gang Ding
- Department of Urology, Zhongnan Hospital, Wuhan University, Wuhan, Hubei Province, China
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12
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Hydrogen peroxide administered into the rat spinal cord at the level elevated by contusion spinal cord injury oxidizes proteins, DNA and membrane phospholipids, and induces cell death: attenuation by a metalloporphyrin. Neuroscience 2014; 285:81-96. [PMID: 25451281 DOI: 10.1016/j.neuroscience.2014.10.063] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2014] [Revised: 10/24/2014] [Accepted: 10/28/2014] [Indexed: 01/23/2023]
Abstract
We previously demonstrated that hydrogen peroxide concentration ([H2O2]) significantly increases after spinal cord injury (SCI). The present study explored (1) whether SCI-elevated [H2O2] is sufficient to induce oxidation and cell death, (2) if apoptosis is a pathway of H2O2-induced cell death, and (3) whether H2O2-induced oxidation and cell death could be reversed by treatment with the catalytic antioxidant Mn (III) tetrakis (4-benzoic acid) porphyrin (MnTBAP). H2O2 was perfused through a microcannula into the uninjured rat spinal cord to mimic the conditions induced by SCI. Protein and DNA oxidation, membrane phospholipids peroxidation (MLP), cell death and apoptosis were characterized by histochemical and immunohistochemical staining with antibodies against markers of oxidation and apoptosis. Stained cells were quantified in sections of H2O2-, or artificial cerebrospinal fluid (ACSF)-exposed with vehicle-, or MnTBAP-treated groups. Compared with ACSF-exposed animals, SCI-elevated [H2O2] significantly increased intracellular protein and DNA oxidation by threefold and MLP by eightfold in neurons, respectively. H2O2-elevated extracellular malondialdehyde was measured by microdialysis sampling. We demonstrated that SCI-elevated [H2O2] significantly increased extracellular malondialdehyde above pre-injury levels. H2O2 also significantly increased cell loss and the numbers of terminal deoxynucleotidyl transferase (TdT)-mediated deoxyuridine triphosphate-(dUTP)-biotin nick end labeling (TUNEL)-positive and active caspase-3-positive neurons by 2.3-, 2.8-, and 5.6-fold compared to ACSF controls, respectively. Our results directly and unequivocally demonstrate that SCI-elevated [H2O2] contributes to post-SCI MLP, protein, and DNA oxidation to induce cell death. Therefore, we conclude that (1) the role of H2O2 in secondary SCI is pro-oxidation and pro-cell death, (2) apoptosis is a pathway for SCI-elevated [H2O2] to induce cell death, (3) caspase activation is a mechanism of H2O2-induced apoptosis after SCI, and (4) MnTBAP treatment significantly decreased H2O2-induced oxidation, cell loss, and apoptosis to the levels of ACSF controls, further supporting MnTBAP's ability to scavenge H2O2 by in vivo evidence.
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