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Jayasudha P, Manivannan R, Kim W, Son YA. An affordable, field-deployable detecting system for cyanide ion - Investigating applications in real time uses. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2025; 324:124946. [PMID: 39208543 DOI: 10.1016/j.saa.2024.124946] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2024] [Revised: 07/31/2024] [Accepted: 08/07/2024] [Indexed: 09/04/2024]
Abstract
A highly efficient system that incorporates the instantaneous visualization of the cyanide ion in water was synthesized by keeping the fluorophore system (electron donor) as a julolidine-coumarin conjugate and changing the electron acceptor unit. The probes exhibit a notable color change in normal and UV light. The probe interaction modalities are based on the ICT process. With a detection limit in the nM range, it may preferentially react with cyanide, which is less than the tolerable level of 1.9 μM. According to 1H NMR data, the probes detect cyanide ions by nucleophilic addition reaction mechanism. Furthermore, current probe successfully determines real resources, including cyanide containing cassava powder, sprouted potatoes and various water samples. Besides the test strips, an electronic Arduino device was also employed to detect the cyanide ion. As such, the developed probes exhibit outstanding practical application with respect to the cyanide ion.
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Affiliation(s)
- Palanisamy Jayasudha
- Department of Advanced Organic Materials Engineering, Chungnam National University, 220 Gung-dong, Yuseong-gu, Daejeon 305-764, South Korea
| | - Ramalingam Manivannan
- Department of Advanced Organic Materials Engineering, Chungnam National University, 220 Gung-dong, Yuseong-gu, Daejeon 305-764, South Korea
| | - Wonbin Kim
- Department of Advanced Organic Materials Engineering, Chungnam National University, 220 Gung-dong, Yuseong-gu, Daejeon 305-764, South Korea
| | - Young-A Son
- Department of Advanced Organic Materials Engineering, Chungnam National University, 220 Gung-dong, Yuseong-gu, Daejeon 305-764, South Korea.
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Ma W, Chen R, Hu T, Xing S, Zhou G, Qin X, Ren H, Zhang Z, Chen J, Niu Q. New dual-responsive fluorescent sensor for hypochlorite and cyanide sensing and its imaging application in live cells and zebrafish. Talanta 2023; 265:124910. [PMID: 37418961 DOI: 10.1016/j.talanta.2023.124910] [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: 04/03/2023] [Revised: 06/28/2023] [Accepted: 07/01/2023] [Indexed: 07/09/2023]
Abstract
Excessive levels of cyanide (CN-) and hypochlorite (ClO-) anions are the significant threats to the human health and the environment. Thus, great efforts have been to design and synthesize molecular sensors for the simple, instantaneous and efficient detecting environmentally and biologically important anions. Currently, developing a single molecular sensor for multi-analyte sensing is still a challenging task. In our present work, we developed a new molecular sensor (3TM) based on oligothiophene and Meldrum's acid units for detecting cyanide and hypochlorite anions in biological, environmental and food samples. The detecting ability of 3TM has been examined to various testing substances containing amino acids, reactive oxygen species, cations and anions, showing its high selectivity, excellent sensitivity, short response time (ClO-: 30 s, CN-: 100 s), and broad pH working range (4-10). The detection limits were calculated as 4.2 nM for ClO- in DMSO/H2O (1/8, v/v) solution and 6.5 nM for CN- in DMSO/H2O (1/99, v/v) solution. Sensor 3TM displayed sharp turn-on fluorescence increasement (555 nm, 435 nm) and sensitive fluorescence color changes caused by CN-/ClO-, which is ascribed to the nucleophilic addition and oxidation of ethylenic linkage by cyanide and hypochlorite, respectively. Moreover, sensor 3TM was applied for hypochlorite and cyanide detecting in real-world water, food samples and bio-imaging in live cells and zebrafish. To our knowledge, the developed 3TM sensor is the seventh single-molecular sensor for simultaneous and discriminative detecting hypochlorite and cyanide in food, biological and aqueous environments using two distinct sensing modes.
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Affiliation(s)
- Wenwen Ma
- Shandong Provincial Key Laboratory of Molecular Engineering, School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, China
| | - Ruiming Chen
- Shandong Provincial Key Laboratory of Molecular Engineering, School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, China
| | - Tingting Hu
- Shandong Provincial Key Laboratory of Molecular Engineering, School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, China
| | - Shu Xing
- Shandong Provincial Key Laboratory of Molecular Engineering, School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, China
| | - Guanglian Zhou
- Shandong Provincial Key Laboratory of Molecular Engineering, School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, China.
| | - Xiaoxu Qin
- Shandong Provincial Key Laboratory of Molecular Engineering, School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, China
| | - Huijun Ren
- Shandong Provincial Key Laboratory of Molecular Engineering, School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, China
| | - Zhengyang Zhang
- Shandong Provincial Key Laboratory of Molecular Engineering, School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, China
| | - Jianbin Chen
- Shandong Provincial Key Laboratory of Molecular Engineering, School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, China
| | - Qingfen Niu
- Shandong Provincial Key Laboratory of Molecular Engineering, School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, China.
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EEfficient Detection of CN− and Cu2+ Ions by Styryl-BODIPY based Multifunctional Chemosensor in Semi-aqueous Medium. J Mol Struct 2023. [DOI: 10.1016/j.molstruc.2022.134396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Mandal M, Karak A, Halder S, Banerjee S, Maiti A, Jana K, Mahapatra AK, Kar A. A ratiometric styryl bridging triphenylamine-indolinium based fluorescent dye for detection of cyanide with a large emission shift in human breast cancer cells and test strips. Supramol Chem 2022. [DOI: 10.1080/10610278.2022.2135439] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Moumi Mandal
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Howrah 711 103, India
| | - Anirban Karak
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Howrah 711 103, India
| | - Satyajit Halder
- Division of Molecular Medicine, Bose Institute, P 1/12, CIT Scheme VIIM, Kolkata 700 054, India
| | - Shilpita Banerjee
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Howrah 711 103, India
| | - Anwesha Maiti
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Howrah 711 103, India
| | - Kuladip Jana
- Division of Molecular Medicine, Bose Institute, P 1/12, CIT Scheme VIIM, Kolkata 700 054, India
| | - Ajit Kumar Mahapatra
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Howrah 711 103, India
| | - Arik Kar
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Howrah 711 103, India
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Lichen Extracts from Cetrarioid Clade Provide Neuroprotection against Hydrogen Peroxide-Induced Oxidative Stress. Molecules 2022; 27:molecules27196520. [PMID: 36235056 PMCID: PMC9573381 DOI: 10.3390/molecules27196520] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Revised: 09/26/2022] [Accepted: 09/30/2022] [Indexed: 01/24/2023] Open
Abstract
Oxidative stress is involved in the pathophysiology of many neurodegenerative diseases. Lichens have antioxidant properties attributed to their own secondary metabolites with phenol groups. Very few studies delve into the protective capacity of lichens based on their antioxidant properties and their action mechanism. The present study evaluates the neuroprotective role of Dactylina arctica, Nephromopsis stracheyi, Tuckermannopsis americana and Vulpicida pinastri methanol extracts in a hydrogen peroxide (H2O2) oxidative stress model in neuroblastoma cell line "SH-SY5Y cells". Cells were pretreated with different concentrations of lichen extracts (24 h) before H2O2 (250 µM, 1 h). Our results showed that D. arctica (10 µg/mL), N. stracheyi (25 µg/mL), T. americana (50 µg/mL) and V. pinastri (5 µg/mL) prevented cell death and morphological changes. Moreover, these lichens significantly inhibited reactive oxygen species (ROS) production and lipid peroxidation and increased superoxide dismutase (SOD) and catalase (CAT) activities and glutathione (GSH) levels. Furthermore, they attenuated mitochondrial membrane potential decline and calcium homeostasis disruption. Finally, high-performance liquid chromatography (HPLC) analysis revealed that the secondary metabolites were gyrophoric acid and lecanoric acid in D. artica, usnic acid, pinastric acid and vulpinic acid in V. pinastri, and alectoronic acid in T. americana. In conclusion, D. arctica and V. pinastri are the most promising lichens to prevent and to treat oxidative stress-related neurodegenerative diseases.
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Correia SC, Alves MG, Oliveira PF, Casadesus G, LaManna J, Perry G, Moreira PI. Hypoxic Preconditioning Averts Sporadic Alzheimer's Disease-Like Phenotype in Rats: A Focus on Mitochondria. Antioxid Redox Signal 2022; 37:739-757. [PMID: 35316086 DOI: 10.1089/ars.2019.8007] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Aims: Brief episodes of sublethal hypoxia reprogram brain response to face possible subsequent lethal stimuli by triggering adaptive and prosurvival events-a phenomenon denominated hypoxic preconditioning (HP). To date, the potential therapeutic implications of HP to forestall sporadic Alzheimer's disease (sAD) pathology remain unexplored. Using a well-established protocol of HP and focusing on hippocampus as a first brain region affected in AD, this study was undertaken to investigate the potential protective effects of HP in a sAD rat model induced by the intracerebroventricular (icv) administration of streptozotocin (STZ) and to uncover the mitochondrial adaptations underlying this nonpharmacological strategy. Results: HP prevented the memory and learning deficits as well as tau pathology in the icvSTZ rat model. HP also attenuated icvSTZ-related reactive astrogliosis, as noted by increased glial fibrillary acidic protein immunoreactivity and myo-inositol levels. Notably, HP abrogated the icvSTZ-related impaired energy metabolism and oxidative damage. Particularly, HP averted increased lactate, glutamate, and succinate levels, and decreased mitochondrial respiratory chain function and mitochondrial DNA content. Concerning mitochondrial adaptations underlying HP-triggered tolerance to icvSTZ, preconditioned hippocampal mitochondria displayed an enhanced complex II-energized mitochondrial respiration, which resulted from a coordinated interaction between mitochondrial biogenesis and fusion-fission. Mitochondrial biogenesis was stimulated immediately after HP, whereas in a latter phase mitochondrial fusion-fission events are modulated favoring the generation of elongated mitochondria. Innovation and Conclusion: Overall, these results demonstrate for the first time that HP prevents the sAD-like phenotype, in part, by targeting mitochondria emerging as a preventive strategy in the context of AD. Antioxid. Redox Signal. 37, 739-757.
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Affiliation(s)
- Sónia C Correia
- Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal.,Center for Innovative Biomedicine and Biotechnology, and University of Coimbra, Coimbra, Portugal.,Institute for Interdisciplinary Research, University of Coimbra, Coimbra, Portugal
| | - Marco G Alves
- Unit for Multidisciplinary Research in Biomedicine (UMIB), Department of Anatomy, Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, Porto, Portugal
| | - Pedro F Oliveira
- QOPNA & LAQV, Department of Chemistry, University of Aveiro, Aveiro, Portugal
| | - Gemma Casadesus
- Department of Biological Sciences, Kent State University, Kent, Ohio, USA
| | - Joseph LaManna
- Department of Physiology & Biophysics, Case Western Reserve University, Cleveland, Ohio, USA
| | - George Perry
- Department of Biology, College of Sciences, University of Texas at San Antonio, San Antonio, Texas, USA
| | - Paula I Moreira
- Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal.,Center for Innovative Biomedicine and Biotechnology, and University of Coimbra, Coimbra, Portugal.,Laboratory of Physiology, Faculty of Medicine, University of Coimbra, Coimbra, Portugal
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Zuhra K, Szabo C. The two faces of cyanide: an environmental toxin and a potential novel mammalian gasotransmitter. FEBS J 2022; 289:2481-2515. [PMID: 34297873 PMCID: PMC9291117 DOI: 10.1111/febs.16135] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Revised: 07/15/2021] [Accepted: 07/22/2021] [Indexed: 12/16/2022]
Abstract
Cyanide is traditionally viewed as a cytotoxic agent, with its primary mode of action being the inhibition of mitochondrial Complex IV (cytochrome c oxidase). However, recent studies demonstrate that the effect of cyanide on Complex IV in various mammalian cells is biphasic: in lower concentrations (nanomolar to low micromolar) cyanide stimulates Complex IV activity, increases ATP production and accelerates cell proliferation, while at higher concentrations (high micromolar to low millimolar) it produces the previously known ('classic') toxic effects. The first part of the article describes the cytotoxic actions of cyanide in the context of environmental toxicology, and highlights pathophysiological conditions (e.g., cystic fibrosis with Pseudomonas colonization) where bacterially produced cyanide exerts deleterious effects to the host. The second part of the article summarizes the mammalian sources of cyanide production and overviews the emerging concept that mammalian cells may produce cyanide, in low concentrations, to serve biological regulatory roles. Cyanide fulfills many of the general criteria as a 'classical' mammalian gasotransmitter and shares some common features with the current members of this class: nitric oxide, carbon monoxide, and hydrogen sulfide.
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Affiliation(s)
- Karim Zuhra
- Chair of PharmacologySection of MedicineUniversity of FribourgSwitzerland
| | - Csaba Szabo
- Chair of PharmacologySection of MedicineUniversity of FribourgSwitzerland
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Kostenko AA, Koneva ES, Malyutin DS, Tsvetkova AV, Bisheva DR, Vasilieva ES, Bazarov DV, Shestakov AV, Kotenko KV. [Hypoxic training in rehabilitation of patients at the early stages of recovery after SARS-CoV-2 pneumonia]. VOPROSY KURORTOLOGII, FIZIOTERAPII, I LECHEBNOI FIZICHESKOI KULTURY 2022; 99:11-16. [PMID: 36083812 DOI: 10.17116/kurort20229904211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
OBJECTIVE To evaluate efficacy and safety of hypoxic-hyperoxic therapy in rehabilitation after SARS-CoV-2 pneumonia. MATERIAL AND METHODS There were 44 patients aged 49-75 years in early recovery period after previous SARS-CoV-2 pneumonia (ICD-10 U07.1 and U07.2). Patients were divided into 2 groups depending on treatment strategy: group 1 (n=23) - rehabilitation treatment with therapeutic exercises, massage and physiotherapy; group 2 (n=21) - basic procedures with hypoxic-hyperoxic therapy. RESULTS At initial evaluation, we found positive tendencies of rehabilitation in both groups. There were no side effects associated with hypoxic-hyperoxic therapy in the second group. Patients positively perceived this method of rehabilitation. There were significant between-group differences in exercise tolerance (p<0.05). These data indicate more favorable physical recovery in the second group and similar improvement of psycho-emotional status in both groups. CONCLUSION Hypoxic-hyperoxic therapy is effective and safe approach in rehabilitation of patients with previous SARS-CoV-2 pneumonia. It is necessary to continue searching for effective methods of rehabilitation and develop accurate rehabilitation methods for various groups of patients.
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Affiliation(s)
- A A Kostenko
- Group of companies «MEDSI», Otradnoe, Russia
- Sechenov First Moscow State Medical University, Moscow, Russia
| | - E S Koneva
- Group of companies «MEDSI», Otradnoe, Russia
- Sechenov First Moscow State Medical University, Moscow, Russia
| | - D S Malyutin
- Group of companies «MEDSI», Otradnoe, Russia
- Sechenov First Moscow State Medical University, Moscow, Russia
| | - A V Tsvetkova
- Group of companies «MEDSI», Otradnoe, Russia
- Sechenov First Moscow State Medical University, Moscow, Russia
| | - D R Bisheva
- Group of companies «MEDSI», Otradnoe, Russia
- Sechenov First Moscow State Medical University, Moscow, Russia
| | - E S Vasilieva
- FGBNU "Russian Scientific Center for Surgery named after acad. B.V. Petrovsky Russian Research Center for Surgery, Moscow, Russia
| | - D V Bazarov
- FGBNU "Russian Scientific Center for Surgery named after acad. B.V. Petrovsky Russian Research Center for Surgery, Moscow, Russia
| | - A V Shestakov
- FGBNU "Russian Scientific Center for Surgery named after acad. B.V. Petrovsky Russian Research Center for Surgery, Moscow, Russia
| | - K V Kotenko
- FGBNU "Russian Scientific Center for Surgery named after acad. B.V. Petrovsky Russian Research Center for Surgery, Moscow, Russia
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Pundi A, Chen J, Chang CJ, Hsieh SR, Lee MC, Chou CH, Way TD. Naked-eye colorimetric and turn-on fluorescent Schiff base sensor for cyanide and aluminum (III) detection in food samples and cell imaging applications. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 262:120139. [PMID: 34245971 DOI: 10.1016/j.saa.2021.120139] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Revised: 06/25/2021] [Accepted: 06/29/2021] [Indexed: 06/13/2023]
Abstract
A new efficient Schiff base sensor SB3 for fluorescent and colorimetric "naked-eye" "turn-on" sensing of cyanide anion (CN-) with excellent sensitivity and selectivity was developed. The 4,4'-(perfluoropropane-2,2-diyl)bisphenol group and two phenyl groups were covalently linked by two C = N bonds to extend the conjugation length. The four hydroxyl groups can improve the water solubility of the SB3 sensor. The SB3 sensor exhibited high specificity towards CN- by interrupting its intramolecular charge transfer, resulting in a color change and remarkable "turn-on" green fluorescence emission. The sensing mechanism is caused by the nucleophilic addition of CN- toward imine groups of the SB3 sensor, leading to breaks of the conjugation, fluorescent spectral changes, and color change. It was confirmed by 1H NMR titration and Mass spectra. The detection limits for CN- and Al3+obtained by fluorescence spectrum are 0.80 µM and 0.25 µM, respectively. The SB3 sensor can act as an efficient chemical sensor for detecting the CN- and Al3+ ions under common environmental and physiological conditions (pH 5-12). Besides, the sensor can also detect CN- in food materials (such as sprouting potatoes and cassava flour) and imaging CN-in living cells with strong "turn-on" fluorescence at 490 nm. SB3 is an excellent CN- sensor that exhibits some advantages, including easy synthesis, distinct fluorescence and color change, high selectivity, low detection limit, and good anti-interference ability to analyze solution and food samples, together with fluorescence cell imaging.
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Affiliation(s)
- Arul Pundi
- Department of Chemical Engineering, Feng Chia University, 100, Wenhwa Road, Seatwen, Taichung 40724, Taiwan, ROC
| | - Jemkun Chen
- Department of Materials Science and Engineering, National Taiwan University of Science and Technology, 43, Sec.4, Keelung Rd, Taipei 106, Taiwan, ROC
| | - Chi-Jung Chang
- Department of Chemical Engineering, Feng Chia University, 100, Wenhwa Road, Seatwen, Taichung 40724, Taiwan, ROC.
| | - Shih-Rong Hsieh
- Cardiovascular Center, Taichung Tzu Chi Hospital, 88, Sec. 1, Fengxing Road, Tanzi, Taichung 427, Taiwan, ROC
| | - Ming-Ching Lee
- Department of Surgery, Taichung Veterans General Hospital, 1650 Taiwan Boulevard Section 4, Taichung 40705, Taiwan, ROC
| | - Chun-Hung Chou
- Program for Biotechnology Industry, College of Life Sciences, China Medical University, Taichung, Taiwan, ROC
| | - Tzong-Der Way
- Program for Biotechnology Industry, College of Life Sciences, China Medical University, Taichung, Taiwan, ROC; Department of Biological Science and Technology, College of Life Sciences, China Medical University, Taichung, Taiwan, ROC; Department of Health and Nutrition Biotechnology, Asia University, Taichung, Taiwan, ROC
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Reply to Giamogante et al.: The effect of low cyanide on O 2 consumption is best observed in physiological, rather than reductionist, systems. Proc Natl Acad Sci U S A 2021; 118:2113369118. [PMID: 34544879 DOI: 10.1073/pnas.2113369118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/09/2021] [Indexed: 11/18/2022] Open
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González-Burgos E, Ureña-Vacas I, Sánchez M, Gómez-Serranillos MP. Nutritional Value of Moringa oleifera Lam. Leaf Powder Extracts and Their Neuroprotective Effects via Antioxidative and Mitochondrial Regulation. Nutrients 2021; 13:nu13072203. [PMID: 34206952 PMCID: PMC8308447 DOI: 10.3390/nu13072203] [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: 06/07/2021] [Revised: 06/22/2021] [Accepted: 06/22/2021] [Indexed: 12/16/2022] Open
Abstract
Age-related neurodegenerative disorders are an increasing public health problem. Oxidative stress is one of the major causes. Medicinal plant-based functional foods can be effective for these diseases. The aim of this work is to investigate the neuroprotective role of methanol extracts of Moringa oleifera leaf powder on antioxidant/oxidant imbalance and mitochondrial regulation in a H2O2-induced oxidative stress model in human neuroblastoma cells. On nutritional analysis, results showed that moringa contained 28.50% carbohydrates, 25.02% proteins, 10.42% fat, 11.83% dietary fiber, 1.108 mg β-carotene, 326.4 µg/100 g vitamin B1 and 15.2 mg/100 g vitamin C. In-vitro assays revealed that moringa methanol extracts had more phenolic content and higher antioxidant activity than acetone extracts. Moreover, pretreatments with methanol extracts showed a protective effect against H2O2-induced oxidative damage through increasing cell viability and reducing free radicals. Furthermore, the extract decreased lipid peroxidation and enhanced glutathione levels and antioxidant enzyme activity. Finally, moringa also prevented mitochondrial dysfunction by regulating calcium levels and increasing mitochondrial membrane potential. The most active concentration was 25 µg/mL. In summary, the nutritional and functional properties of Moringa oleifera as a neuroprotective agent could be beneficial to protect against oxidative stress and provide necessary nutrients for a healthy diet.
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Mahmoud AM, Mahnashi MH, El-Wekil MM. Indirect differential pulse voltammetric analysis of cyanide at porous copper based metal organic framework modified carbon paste electrode: Application to different water samples. Talanta 2021; 221:121562. [PMID: 33076114 DOI: 10.1016/j.talanta.2020.121562] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Revised: 08/09/2020] [Accepted: 08/12/2020] [Indexed: 11/28/2022]
Abstract
Carbon paste electrode (CPE) modified with porous copper based metal organic framework (Cu-MOF) nanocomposite is described for analysis of cyanide (CN-) for the first time. The electrochemical performance of the proposed electrode was investigated by differential pulse voltammetry (DPV), electrochemical impedance spectroscopy (EIS) and cyclic voltammetry (CV). The Cu-MOF nanocomposite was characterized using scanning electron microscope (SEM), N2-adsorption-desorption isotherms, powder X-ray powder diffraction (PXRD), Fourier transform infrared spectroscopy (FTIR) and thermogravimetric analysis (TGA). Under optimal conditions of measurements, the anodic peak (Ipa) decreases linearly in the range of 1.87-25 μM with LOD of 0.60 μM (at S/N = 3). The Cu-MOF/CPE showed good selectivity towards CN- measurement with no significant interference in pH 7.0 using 0.25 M KCl to increase the medium conductivity and to stabilize the analyte and prevents its volatility. Moreover, the method was successfully applied for determination of CN- in different environmental water samples.
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Affiliation(s)
- Ashraf M Mahmoud
- Department of Pharmaceutical Chemistry, College of Pharmacy, Najran University, Najran, Kingdom of Saudia Arabia; Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Assiut University, Assiut, Egypt
| | - Mater H Mahnashi
- Department of Pharmaceutical Chemistry, College of Pharmacy, Najran University, Najran, Kingdom of Saudia Arabia
| | - Mohamed M El-Wekil
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Assiut University, Assiut, Egypt.
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ROS-associated immune response and metabolism: a mechanistic approach with implication of various diseases. Arch Toxicol 2020; 94:2293-2317. [PMID: 32524152 DOI: 10.1007/s00204-020-02801-7] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Accepted: 06/02/2020] [Indexed: 12/14/2022]
Abstract
The immune system plays a pivotal role in maintaining the defense mechanism against external agents and also internal danger signals. Metabolic programming of immune cells is required for functioning of different subsets of immune cells under different physiological conditions. The field of immunometabolism has gained ground because of its immense importance in coordination and balance of immune responses. Metabolism is very much related with production of energy and certain by-products. Reactive oxygen species (ROS) are generated as one of the by-products of various metabolic pathways. The amount, localization of ROS and redox status determine transcription of genes, and also influences the metabolism of immune cells. This review discusses ROS, metabolism of immune cells at different cellular conditions and sheds some light on how ROS might regulate immunometabolism.
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Liu Y, Qiu D, Pan H, Li M, Chen H, Li H. A highly selective fluorescent probe for colorimetric recognition of cyanide anion based on heptamethine cyanine-triphenylamine conjugate. J Photochem Photobiol A Chem 2018. [DOI: 10.1016/j.jphotochem.2018.06.018] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Carvalho C, Moreira PI. Oxidative Stress: A Major Player in Cerebrovascular Alterations Associated to Neurodegenerative Events. Front Physiol 2018; 9:806. [PMID: 30018565 PMCID: PMC6037979 DOI: 10.3389/fphys.2018.00806] [Citation(s) in RCA: 114] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2018] [Accepted: 06/08/2018] [Indexed: 12/19/2022] Open
Abstract
The brain is one of the most exquisite organs in the body with high metabolic demands, and requires a tight regulation of the surrounding environment. This tight control is exerted by the neurovascular unit (NVU) comprising different cell types, where endothelial cells play the commander-in-chief role. Thus, it is assumable that even slight perturbations in NVU might affect, in some cases irreversibly, brain homeostasis and health. In this line, recent findings support the two-hit vascular hypothesis for neurodegenerative conditions, where vascular dysfunction underlies the development of neurodegenerative diseases, such as Alzheimer’s disease (AD). Knowing that endothelial cells are rich in mitochondria and nicotinamide adenine dinucleotide phosphate (NADPH) oxidases, two major reactive oxygen species (ROS) sources, this review aims to gather information on how oxidative stress is in the front line of vascular alterations observed in brain aging and neurodegenerative conditions, particularly AD. Also, a brief discussion about the therapeutic strategies aimed to protect against cerebrovascular diseases is included.
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Affiliation(s)
- Cristina Carvalho
- CNC - Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal.,Institute for Interdisciplinary Research, University of Coimbra, Coimbra, Portugal
| | - Paula I Moreira
- CNC - Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal.,Laboratory of Physiology, Faculty of Medicine, University of Coimbra, Coimbra, Portugal
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17
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Li F, Dong Y, Shen H, Lu R, Yin S, Tian W, Wang S, Xing G. Tolerance to dichloroacetonitrile-induced neurotoxicity in streptozotocin-induced diabetic rats. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2017; 56:61-67. [PMID: 28886427 DOI: 10.1016/j.etap.2017.08.037] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2017] [Revised: 08/20/2017] [Accepted: 08/24/2017] [Indexed: 06/07/2023]
Abstract
Diabetes mellitus has potential to alter the toxicity of hazardous chemicals. Dichloroacetonitrile (DCAN) is one of high-risk nitrogenous disinfection by-products. This study evaluated the neurotoxicity of DCAN (11, 44 and 88mg/kg) in normoglycaemic and streptozotocin (STZ)-induced diabetic rats via orally for 28days. STZ diabetes prolonged the median survival time and total lethal time after DCAN (88mg/kg) exposure when compared with that observed in normoglycaemic rats. DCAN altered motor activity and induced anxiety behaviour in normoglycaemic rats; but it did not exaggerate behavioural changes in STZ diabetic rats. DCAN -induced brain oxidative damage by compensatory increase glutathione content and decrease malonaldehyde levels; but it did not induce oxidative damage in diabetic rats. STZ diabetes slowed down the pathological pace of DCAN-induced brain mitochondrial dysfunction by decreasing reactive oxygen species and increasing cytochrome C oxidase activity. In conclusion, the present study indicated that STZ diabetic rats are resistant to DCAN-induced neurotoxicity at the dosage and with the dosage schedule in 28-day subacute toxicity test.
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Affiliation(s)
- Fang Li
- School of Medicine, Jiangsu University, Zhenjiang, Jiangsu 212013, China.
| | - Ying Dong
- School of Medicine, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Haijun Shen
- School of Medicine, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Rongzhu Lu
- School of Medicine, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Siqi Yin
- School of Medicine, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Weihong Tian
- School of Medicine, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Suhua Wang
- School of Medicine, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Guangwei Xing
- School of Medicine, Jiangsu University, Zhenjiang, Jiangsu 212013, China
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18
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Wu J, Li R, Li W, Ren M, Thangthaeng N, Sumien N, Liu R, Yang S, Simpkins JW, Forster MJ, Yan LJ. Administration of 5-methoxyindole-2-carboxylic acid that potentially targets mitochondrial dihydrolipoamide dehydrogenase confers cerebral preconditioning against ischemic stroke injury. Free Radic Biol Med 2017; 113:244-254. [PMID: 29017857 PMCID: PMC5699942 DOI: 10.1016/j.freeradbiomed.2017.10.008] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/17/2017] [Revised: 09/09/2017] [Accepted: 10/06/2017] [Indexed: 02/06/2023]
Abstract
The objective of this study was to investigate a possible role of mitochondrial dihydrolipoamide dehydrogenase (DLDH) as a chemical preconditioning target for neuroprotection against ischemic injury. We used 5-methoxyindole-2-carboxylic acid (MICA), a reportedly reversible DLDH inhibitor, as the preconditioning agent and administered MICA to rats mainly via dietary intake. Upon completion of 4 week's MICA treatment, rats underwent 1h transient ischemia and 24h reperfusion followed by tissue collection. Our results show that MICA protected the brain against ischemic stroke injury as the infarction volume of the brain from the MICA-treated group was significantly smaller than that from the control group. Data were then collected without or with stroke surgery following MICA feeding. It was found that in the absence of stroke following MICA feeding, DLDH activity was lower in the MICA treated group than in the control group, and this decreased activity could be partly due to DLDH protein sulfenation. Moreover, DLDH inhibition by MICA was also found to upregulate the expression of NAD(P)H-ubiquinone oxidoreductase 1(NQO1) via the Nrf2 signaling pathway. In the presence of stroke following MICA feeding, decreased DLDH activity and increased Nrf2 signaling were also observed along with increased NQO1 activity, decreased oxidative stress, decreased cell death, and increased mitochondrial ATP output. We also found that MICA had a delayed preconditioning effect four weeks post MICA treatment. Our study indicates that administration of MICA confers chemical preconditioning and neuroprotection against ischemic stroke injury.
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Affiliation(s)
- Jinzi Wu
- Department of Pharmaceutical Sciences, UNT System College of Pharmacy, University of North Texas Health Science Center, Fort Worth, TX 76107, USA
| | - Rongrong Li
- Department of Pharmaceutical Sciences, UNT System College of Pharmacy, University of North Texas Health Science Center, Fort Worth, TX 76107, USA
| | - Wenjun Li
- Center for Neuroscience Discovery, Institute for Healthy Aging, University of North Texas Health Science Center, Fort Worth, TX 76107, USA
| | - Ming Ren
- Center for Neuroscience Discovery, Institute for Healthy Aging, University of North Texas Health Science Center, Fort Worth, TX 76107, USA
| | - Nopporn Thangthaeng
- Center for Neuroscience Discovery, Institute for Healthy Aging, University of North Texas Health Science Center, Fort Worth, TX 76107, USA
| | - Nathalie Sumien
- Center for Neuroscience Discovery, Institute for Healthy Aging, University of North Texas Health Science Center, Fort Worth, TX 76107, USA
| | - Ran Liu
- Center for Neuroscience Discovery, Institute for Healthy Aging, University of North Texas Health Science Center, Fort Worth, TX 76107, USA
| | - Shaohua Yang
- Center for Neuroscience Discovery, Institute for Healthy Aging, University of North Texas Health Science Center, Fort Worth, TX 76107, USA
| | - James W Simpkins
- Department of Physiology and Pharmacology, Center for Basic and Translational Stroke Research, West Virginia University, 1 Medical Center Drive, Morgantown, WV 26506, USA
| | - Michael J Forster
- Center for Neuroscience Discovery, Institute for Healthy Aging, University of North Texas Health Science Center, Fort Worth, TX 76107, USA
| | - Liang-Jun Yan
- Department of Pharmaceutical Sciences, UNT System College of Pharmacy, University of North Texas Health Science Center, Fort Worth, TX 76107, USA.
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19
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González-Burgos E, Fernández-Moriano C, Lozano R, Iglesias I, Gómez-Serranillos M. Ginsenosides Rd and Re co-treatments improve rotenone-induced oxidative stress and mitochondrial impairment in SH-SY5Y neuroblastoma cells. Food Chem Toxicol 2017; 109:38-47. [DOI: 10.1016/j.fct.2017.08.013] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2017] [Revised: 07/19/2017] [Accepted: 08/11/2017] [Indexed: 11/15/2022]
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20
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Reddy PM, Hsieh SR, Chang CJ, Kang JY. Detection of cyanide ions in aqueous solutions using cost effective colorimetric sensor. JOURNAL OF HAZARDOUS MATERIALS 2017; 334:93-103. [PMID: 28402899 DOI: 10.1016/j.jhazmat.2017.04.001] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2016] [Revised: 03/31/2017] [Accepted: 04/01/2017] [Indexed: 06/07/2023]
Abstract
Cyanide (CN̄) is one of the most toxic material to the human and environment. It is very important to develop the diagnostic tools for the detection of CN̄ ions. Moreover, detection of the ions in an aqueous medium is a challenging task as water molecules interfere with the sensing mechanism. In this context, we prepared chemical sensor, S1, having anthraquinone as a signaling unit and thiourea as a binding site. This sensor exhibited distinct visual color and spectral changes in response to CN̄ ion over other testing anions in 50% aq. DMSO solution. However, in 20% aq. DMSO solution, S1 exhibited obvious spectral and color changes in response to CN̄, fluoride (F̄), acetate (Ac̄) and benzoate (Bz̄). Another sensor, S2, having a same signaling unit with that of S1, but a different binding site of urea group. In contrast to S1, S2 exhibited obvious spectral and color changes to F̄ in 2.5% aq. DMSO solution. NMR titration results suggested that the spectral and colorimetric responses were due to the formation of host-guest complex and deprotonation events. Finally, economically viable paper-based colorimetric "test stripes" of S1 were fabricated to detect the CN̄ ions in 100% aqueous solution.
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Affiliation(s)
- P Madhusudhana Reddy
- Department of Chemical Engineering, Feng Chia University, 100, Wenhwa Road, Seatwen, Taichung 40724, Taiwan, ROC
| | - Shih-Rong Hsieh
- Department of Surgery, Taichung Veterans General Hospital, 1650 Taiwan Boulevard Section 4, Taichung 40705, Taiwan, ROC
| | - Chi-Jung Chang
- Department of Chemical Engineering, Feng Chia University, 100, Wenhwa Road, Seatwen, Taichung 40724, Taiwan, ROC.
| | - Jing-Yuan Kang
- Department of Chemical Engineering, Feng Chia University, 100, Wenhwa Road, Seatwen, Taichung 40724, Taiwan, ROC
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21
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Calabrese EJ, Calabrese V, Giordano J. The role of hormesis in the functional performance and protection of neural systems. Brain Circ 2017; 3:1-13. [PMID: 30276298 PMCID: PMC6126232 DOI: 10.4103/2394-8108.203257] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2016] [Revised: 12/06/2016] [Accepted: 12/13/2016] [Indexed: 02/03/2023] Open
Abstract
This paper addresses how hormesis, a biphasic dose response, can protect and affect performance of neural systems. Particular attention is directed to the potential role of hormesis in mitigating age-related neurodegenerative diseases, genetically based neurological diseases, as well as stroke, traumatic brain injury, seizure, and stress-related conditions. The hormetic dose response is of particular significance since it mediates the magnitude and range of neuroprotective processes. Consideration of hormetic dose-response concepts can also enhance the quality of study designs, including sample size/statistical power strategies, selection of treatment groups, dose spacing, and temporal/repeat measures’ features.
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Affiliation(s)
- Edward J Calabrese
- Department of Environmental Health Sciences, School of Public Health and Health Sciences, Morrill I, N344, University of Massachusetts, Amherst, MA 01003, USA
| | - Vittorio Calabrese
- Department of Biomedical and Biotechnological Sciences, School of Medicine, University of Catania, Viale Andrea Doria, Catania, Italy
| | - James Giordano
- Department of Neurology and Biochemistry, Georgetown University Medical Center, Washington, DC 20057, USA
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22
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In vitro neuroprotective potential of lichen metabolite fumarprotocetraric acid via intracellular redox modulation. Toxicol Appl Pharmacol 2016; 316:83-94. [PMID: 28041784 DOI: 10.1016/j.taap.2016.12.020] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2016] [Revised: 12/08/2016] [Accepted: 12/27/2016] [Indexed: 01/09/2023]
Abstract
The lichen-forming fungi Cetraria islandica has been largely used in folk medicines, and it has recently showed promising in vitro antioxidant effects in glial-like cells. Current work aimed at investigating the neuroprotective potential of its major isolated secondary metabolite: the depsidone fumarprotocetraric acid (FUM). H2O2 was used herein to induce oxidative stress (OS)-mediated cytotoxicity in two models of neurons and astrocytes cells (SH-SY5Y and U373-MG cell lines). We found that a pre-treatment with FUM significantly enhanced cell viability compared to H2O2-treated cells, and we selected the optimal concentrations in each model (1 and 25μg/ml, respectively) for assessing its cytoprotective mechanisms. FUM, which exerted effective peroxyl radical scavenging effect in the chemical oxygen radical antioxidant capacity (ORAC) assay, alleviated the alterations in OS markers provoked by H2O2. It attenuated intracellular ROS formation, lipid peroxidation and GSH depletion. At mitochondrial level, FUM prevented from the dissipation of mitochondrial membrane potential and the increase in mitochondrial calcium, implying a protective role against oxidative damage in mitochondrial membrane. Similarly, FUM pre-treatment diminished H2O2-induced apoptosis, as evidenced by the reduction in caspase-3 activity and expression; inmunoblot analysis also revealed a decrease in Bax and an increase in Bcl-2 proteins levels. Furthermore, FUM up-regulated the expression of the antioxidant enzymes catalase, superoxide dismutase-1, and hemeoxigenase-1. These findings and the activation of Nrf2 binding activity in nuclear extracts suggest a plausible involvement of Nrf2 signaling pathway in the cytoprotection by FUM. In conclusion, FUM emerges as a potential drug candidate in the therapy of OS-related diseases, such as the neurodegenerative disorders.
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23
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Preconditioning is hormesis part I: Documentation, dose-response features and mechanistic foundations. Pharmacol Res 2016; 110:242-264. [DOI: 10.1016/j.phrs.2015.12.021] [Citation(s) in RCA: 113] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/23/2015] [Revised: 12/18/2015] [Accepted: 12/19/2015] [Indexed: 12/16/2022]
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24
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Preconditioning is hormesis part II: How the conditioning dose mediates protection: Dose optimization within temporal and mechanistic frameworks. Pharmacol Res 2016; 110:265-275. [DOI: 10.1016/j.phrs.2015.12.020] [Citation(s) in RCA: 135] [Impact Index Per Article: 16.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/23/2015] [Revised: 12/18/2015] [Accepted: 12/19/2015] [Indexed: 01/02/2023]
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25
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Jin Z, Wu J, Yan LJ. Chemical Conditioning as an Approach to Ischemic Stroke Tolerance: Mitochondria as the Target. Int J Mol Sci 2016; 17:351. [PMID: 27005615 PMCID: PMC4813212 DOI: 10.3390/ijms17030351] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2016] [Revised: 02/26/2016] [Accepted: 03/04/2016] [Indexed: 12/17/2022] Open
Abstract
It is well established that the brain can be prepared to resist or tolerate ischemic stroke injury, and mitochondrion is a major target for this tolerance. The preparation of ischemic stroke tolerance can be achieved by three major approaches: ischemic conditioning, hypoxic conditioning and chemical conditioning. In each conditioning approach, there are often two strategies that can be used to achieve the conditioning effects, namely preconditioning (Pre-C) and postconditioning (Post-C). In this review, we focus on chemical conditioning of mitochondrial proteins as targets for neuroprotection against ischemic stroke injury. Mitochondrial targets covered include complexes I, II, IV, the ATP-sensitive potassium channel (mitoKATP), adenine dinucleotide translocase (ANT) and the mitochondrial permeability transition pore (mPTP). While numerous mitochondrial proteins have not been evaluated in the context of chemical conditioning and ischemic stroke tolerance, the paradigms and approaches reviewed in this article should provide general guidelines on testing those mitochondrial components that have not been investigated. A deep understanding of mitochondria as the target of chemical conditioning for ischemic stroke tolerance should provide valuable insights into strategies for fighting ischemic stroke, a leading cause of death in the world.
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Affiliation(s)
- Zhen Jin
- Department of Pharmaceutical Sciences, UNT System College of Pharmacy, University of North Texas Health Science Center, Fort Worth, TX 76107, USA.
| | - Jinzi Wu
- Department of Pharmaceutical Sciences, UNT System College of Pharmacy, University of North Texas Health Science Center, Fort Worth, TX 76107, USA.
| | - Liang-Jun Yan
- Department of Pharmaceutical Sciences, UNT System College of Pharmacy, University of North Texas Health Science Center, Fort Worth, TX 76107, USA.
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26
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Li JJ, Wei W, Qi XL, Xu X, Liu YC, Lin QH, Dong W. Rational design, synthesis of reaction-based dual-channel cyanide sensor in aqueous solution. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2016; 152:288-293. [PMID: 26231779 DOI: 10.1016/j.saa.2015.07.089] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2015] [Revised: 05/28/2015] [Accepted: 07/23/2015] [Indexed: 06/04/2023]
Abstract
A new dual-channel sensor for the detection of cyanide was developed based on the conjugated of naphthalene and malononitrile. Upon the addition of CN(-), the sensor displayed very large blue-shift in both fluorescence (80nm) and absorption (120nm) spectra. The sensor of cyanide was performed via the nucleophilic attack of cyanide anion to vinylic groups of the sensor with a 1:1 binding stoichiometry and the color changed of the sensor is mainly due to the intramolecular charge transfer process improvement. The intramolecular charge transfer progress was blocked with color changed and fluorescence blue-shift. The mechanism of sensor reaction with CN(-) ion was studied using (1)H NMR and mass spectrometry.
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Affiliation(s)
- Jun-Jian Li
- School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, PR China
| | - Wei Wei
- School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, PR China
| | - Xiao-Liang Qi
- School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, PR China
| | - Xiao Xu
- School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, PR China
| | - Yu-Cheng Liu
- School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, PR China
| | - Qiu-Han Lin
- School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, PR China.
| | - Wei Dong
- School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, PR China.
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27
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Bhardwaj S, Singh AK. Visual & reversible sensing of cyanide in real samples by an effective ratiometric colorimetric probe & logic gate application. JOURNAL OF HAZARDOUS MATERIALS 2015; 296:54-60. [PMID: 25913671 DOI: 10.1016/j.jhazmat.2015.04.043] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2015] [Revised: 03/24/2015] [Accepted: 04/14/2015] [Indexed: 06/04/2023]
Abstract
A novel anion probe 3 (2,4-di-tert-butyl-6-((2(2,4-dinitrophenyl) hydrazono) methyl) phenol) has been unveiled as an effective ratiometric and colorimetric sensor for selective and rapid detection of cyanide. The sensing behavior was demonstrated by UV-vis experiments and NMR studies. This sensory system exhibited prominent visual color change toward cyanide ion over other testing anions in DMSO (90%) solvent, with a 1:1 binding stoichiometry and a detection limit down to 3.6×10(-8) mol L(-1). Sensor reveals specific anti-jamming activity and reversible in the presence of Cu(2+) ions. This concept has been applied to design a logic gate circuit at the molecular level. Further we developed coated graphite electrode using probe 3 as ionophore and studied the performance characteristics of electrode. The sensitivity of ratiometric-based colorimetric assay is below the 1.9 μM, accepted by the World Health Organization as the highest permissible cyanide concentration in drinking water. So it can be applied for both quantitative determination and qualitative supervising of cyanide concentrations in real samples.
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Affiliation(s)
| | - Ashok Kumar Singh
- Department of Chemistry, Indian Institute of Technology-Roorkee, Roorkee 247667, India.
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28
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González-Burgos E, Duarte AI, Carretero ME, Moreira PI, Gómez-Serranillos MP. Kaurane diterpenes as mitochondrial alterations preventive agents under experimental oxidative stress conditions. PHARMACEUTICAL BIOLOGY 2015; 54:705-711. [PMID: 26427521 DOI: 10.3109/13880209.2015.1072829] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
CONTEXT Foliol, linearol, and sidol are the most common diterpenes found in Sideritis L. spp. (Lamiaceae) with a wide range of demonstrated properties including anti-inflammatory, antioxidant, and anti-apoptotic effects. OBJECTIVE For the first time, the present work was studied for the potential protective role of these kaurane-type diterpenes on mitochondrial oxidative stress induced by H2O2 in the human astrocytoma U373-MG cell line and in the rat adrenal pheochromocytoma PC12 cell line. MATERIALS AND METHODS Mitochondrial protection was assayed at 5 and 10 µM concentrations for 24 h (for kaurane diterpenes) and H2O2 as oxidative stress inducer (0.1 mM for PC12 cells and 1 mM for U373-MG, for 30 min). ATP concentration was determined by high-performance liquid chromatography (HPLC), and changes in mitochondrial membrane potential, caspase-3 activity as well as in cytosolic and mitochondrial calcium levels were assessed by fluorometric techniques, by using specific fluorescent probes. RESULTS Pretreatments for 24 h with linearol and sidol, prior to H2O2 exposure, acted as mitochondrial alterations preventive agents by increasing membrane potential (over 40-60% in PC12 cells and over 10-20% in U373-MG), restoring both cytosolic and mitochondrial calcium homeostasis (linearol at 10 µM caused a 3.5-fold decrease in cytosolic calcium concentration in PC12 cells), decreasing caspase-3 activity (over 1.25-1.5-fold for linearol and sidol) and avoiding ATP depletion (linearol increased over 20% ATP level in both cell types). CONCLUSION Our results suggest that linearol and sidol could provide protective activity by targeting mitochondria in response to the deleterious changes induced by H2O2.
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Affiliation(s)
- Elena González-Burgos
- a Department of Pharmacology , Faculty of Pharmacy, University Complutense , Madrid , Spain
| | - Ana Isabel Duarte
- b Center for Neuroscience and Cell Biology, University of Coimbra , Coimbra , Portugal , and
| | - Maria Emilia Carretero
- a Department of Pharmacology , Faculty of Pharmacy, University Complutense , Madrid , Spain
| | - Paula Isabel Moreira
- b Center for Neuroscience and Cell Biology, University of Coimbra , Coimbra , Portugal , and
- c Faculty of Medicine , Laboratory of Physiology, University of Coimbra , Coimbra , Portugal
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29
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Abstract
SIGNIFICANCE The molecular mechanism of aging is still vigorously debated, although a general consensus exists that mitochondria are significantly involved in this process. However, the previously postulated role of mitochondrial-derived reactive oxygen species (ROS) as the damaging agents inducing functional loss in aging has fallen out of favor in the recent past. In this review, we critically examine the role of ROS in aging in the light of recent advances on the relationship between mitochondrial structure and function. RECENT ADVANCES The functional mitochondrial respiratory chain is now recognized as a reflection of the dynamic association of respiratory complexes in the form of supercomplexes (SCs). Besides providing kinetic advantage (channeling), SCs control ROS generation by the respiratory chain, thus providing a means to regulate ROS levels in the cell. Depending on their concentration, these ROS are either physiological signals essential for the life of the cell or toxic species that damage cell structure and functions. CRITICAL ISSUES We propose that under physiological conditions the dynamic nature of SCs reversibly controls the generation of ROS as signals involved in mitochondrial-nuclear communication. During aging, there is a progressive loss of control of ROS generation so that their production is irreversibly enhanced, inducing a vicious circle in which signaling is altered and structural damage takes place. FUTURE DIRECTIONS A better understanding on the forces affecting SC association would allow the manipulation of ROS generation, directing these species to their physiological signaling role.
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Affiliation(s)
- Maria Luisa Genova
- Dipartimento di Scienze Biomediche e Neuromotorie, Alma Mater Studiorum-Università di Bologna , Bologna, Italy
| | - Giorgio Lenaz
- Dipartimento di Scienze Biomediche e Neuromotorie, Alma Mater Studiorum-Università di Bologna , Bologna, Italy
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30
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Apostolova N, Victor VM. Molecular strategies for targeting antioxidants to mitochondria: therapeutic implications. Antioxid Redox Signal 2015; 22:686-729. [PMID: 25546574 PMCID: PMC4350006 DOI: 10.1089/ars.2014.5952] [Citation(s) in RCA: 180] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Mitochondrial function and specifically its implication in cellular redox/oxidative balance is fundamental in controlling the life and death of cells, and has been implicated in a wide range of human pathologies. In this context, mitochondrial therapeutics, particularly those involving mitochondria-targeted antioxidants, have attracted increasing interest as potentially effective therapies for several human diseases. For the past 10 years, great progress has been made in the development and functional testing of molecules that specifically target mitochondria, and there has been special focus on compounds with antioxidant properties. In this review, we will discuss several such strategies, including molecules conjugated with lipophilic cations (e.g., triphenylphosphonium) or rhodamine, conjugates of plant alkaloids, amino-acid- and peptide-based compounds, and liposomes. This area has several major challenges that need to be confronted. Apart from antioxidants and other redox active molecules, current research aims at developing compounds that are capable of modulating other mitochondria-controlled processes, such as apoptosis and autophagy. Multiple chemically different molecular strategies have been developed as delivery tools that offer broad opportunities for mitochondrial manipulation. Additional studies, and particularly in vivo approaches under physiologically relevant conditions, are necessary to confirm the clinical usefulness of these molecules.
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Affiliation(s)
- Nadezda Apostolova
- 1 Faculty of Health Sciences, University Jaume I , Castellón de la Plana, Spain
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31
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Yan LJ. Positive oxidative stress in aging and aging-related disease tolerance. Redox Biol 2014; 2:165-9. [PMID: 25460727 PMCID: PMC4297947 DOI: 10.1016/j.redox.2014.01.002] [Citation(s) in RCA: 120] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2013] [Revised: 12/30/2013] [Accepted: 01/01/2014] [Indexed: 12/14/2022] Open
Abstract
It is now well established that reactive oxygen species (ROS), reactive nitrogen species (RNS), and a basal level of oxidative stress are essential for cell survival. It is also well known that while severe oxidative stress often leads to widespread oxidative damage and cell death, a moderate level of oxidative stress, induced by a variety of stressors, can yield great beneficial effects on adaptive cellular responses to pathological challenges in aging and aging-associated disease tolerance such as ischemia tolerance. Here in this review, I term this moderate level of oxidative stress as positive oxidative stress, which usually involves imprinting molecular signatures on lipids and proteins via formation of lipid peroxidation by-products and protein oxidation adducts. As ROS/RNS are short-lived molecules, these molecular signatures can thus execute the ultimate function of ROS/RNS. Representative examples of lipid peroxidation products and protein oxidation adducts are presented to illustrate the role of positive oxidative stress in a variety of pathological settings, demonstrating that positive oxidative stress could be a valuable prophylactic and/or therapeutic approach targeting aging and aging-associated diseases.
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Affiliation(s)
- Liang-Jun Yan
- Department of Pharmacology and Neuroscience, and Institute for Aging and Alzheimer's Disease, University of North Texas Health Science Center, Fort Worth, TX 76107, United States.
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32
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Peng MJ, Guo Y, Yang XF, Suzenet F, Li J, Li CW, Duan YW. Coumarin–hemicyanine conjugates as novel reaction-based sensors for cyanide detection: convenient synthesis and ICT mechanism. RSC Adv 2014. [DOI: 10.1039/c4ra01598c] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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33
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Inhibition of mitochondrial complex III blocks neuronal differentiation and maintains embryonic stem cell pluripotency. PLoS One 2013; 8:e82095. [PMID: 24312632 PMCID: PMC3847032 DOI: 10.1371/journal.pone.0082095] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2013] [Accepted: 10/21/2013] [Indexed: 12/19/2022] Open
Abstract
The mitochondrion is emerging as a key organelle in stem cell biology, acting as a regulator of stem cell pluripotency and differentiation. In this study we sought to understand the effect of mitochondrial complex III inhibition during neuronal differentiation of mouse embryonic stem cells. When exposed to antimycin A, a specific complex III inhibitor, embryonic stem cells failed to differentiate into dopaminergic neurons, maintaining high Oct4 levels even when subjected to a specific differentiation protocol. Mitochondrial inhibition affected distinct populations of cells present in culture, inducing cell loss in differentiated cells, but not inducing apoptosis in mouse embryonic stem cells. A reduction in overall proliferation rate was observed, corresponding to a slight arrest in S phase. Moreover, antimycin A treatment induced a consistent increase in HIF-1α protein levels. The present work demonstrates that mitochondrial metabolism is critical for neuronal differentiation and emphasizes that modulation of mitochondrial functions through pharmacological approaches can be useful in the context of controlling stem cell maintenance/differentiation.
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Correia SC, Perry G, Castellani R, Moreira PI. Is exercise-in-a-bottle likely to proffer new insights into Alzheimer's disease? J Neurochem 2013; 127:4-6. [PMID: 24074055 DOI: 10.1111/jnc.12406] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2013] [Revised: 08/13/2013] [Accepted: 08/15/2013] [Indexed: 11/28/2022]
Affiliation(s)
- Sónia C Correia
- Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal; Institute for Interdisciplinary Research, University of Coimbra, Coimbra, Portugal
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González-Burgos E, Duarte AI, Carretero ME, Moreira PI, Gómez-Serranillos MP. Mitochondrial-targeted protective properties of isolated diterpenoids from sideritis spp. in response to the deleterious changes induced by H2O2. JOURNAL OF NATURAL PRODUCTS 2013; 76:933-938. [PMID: 23675610 DOI: 10.1021/np400118d] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Mitochondrial impairment and oxidative stress are considered widely to be central events in many forms of neurodegenerative disease. The current study has evaluated for the first time the potential protective role of three diterpenoids [andalusol (1), conchitriol (2), and lagascatriol (3)] in response to the deleterious H2O2-induced changes on mitochondrial function. U373-MG human astrocytoma cells and PC12 rat adrenal pheochromocytoma cells were used as models for evaluating the cytoprotective potential of these compounds. In the absence of diterpenoids 1-3, H2O2 compromised mitochondrial function, decreasing mitochondrial membrane potential and ATP levels, increasing caspase-3 activity, and disrupting cytosolic and mitochondrial calcium homeostasis. However, treatment with the diterpenoids, prior to H2O2, prevented these mitochondrial perturbations. In particular, 1 and 3 were the most effective compounds in protecting mitochondrial function against H2O2-induced oxidative stress in U373-MG, whereas all three diterpenoids studied were significantly active against PC12 cells. Since consistent evidence has demonstrated the contribution of H2O2 on both progression and pathological development of several human diseases associated with mitochondrial function and oxidative stress responses, compounds 1-3 are worthy of further investigation.
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Affiliation(s)
- Elena González-Burgos
- Department of Pharmacology, Faculty of Pharmacy, Complutense University, Madrid, Spain
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Milton SL, Dawson-Scully K. Alleviating brain stress: what alternative animal models have revealed about therapeutic targets for hypoxia and anoxia. FUTURE NEUROLOGY 2013; 8:287-301. [PMID: 25264428 DOI: 10.2217/fnl.13.12] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
While the mammalian brain is highly dependent on oxygen, and can withstand only a few minutes without air, there are both vertebrate and invertebrate examples of anoxia tolerance. One example is the freshwater turtle, which can withstand days without oxygen, thus providing a vertebrate model with which to examine the physiology of anoxia tolerance without the pathology seen in mammalian ischemia/reperfusion studies. Insect models such as Drosophila melanogaster have additional advantages, such as short lifespans, low cost and well-described genetics. These models of anoxia tolerance share two common themes that enable survival without oxygen: entrance into a state of deep hypometabolism, and the suppression of cellular injury during anoxia and upon restoration of oxygen. The study of such models of anoxia tolerance, adapted through millions of years of evolution, may thus suggest protective pathways that could serve as therapeutic targets for diseases characterized by oxygen deprivation and ischemic/reperfusion injuries.
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Affiliation(s)
- Sarah L Milton
- Department of Biological Sciences, Florida Atlantic University, 777 Glades Road, Boca Raton, FL 33431, USA
| | - Ken Dawson-Scully
- Department of Biological Sciences, Florida Atlantic University, 777 Glades Road, Boca Raton, FL 33431, USA
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Cardoso S, Santos RX, Correia SC, Carvalho C, Santos MS, Baldeiras I, Oliveira CR, Moreira PI. Insulin-induced recurrent hypoglycemia exacerbates diabetic brain mitochondrial dysfunction and oxidative imbalance. Neurobiol Dis 2012; 49:1-12. [PMID: 22940631 DOI: 10.1016/j.nbd.2012.08.008] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2012] [Revised: 07/21/2012] [Accepted: 08/16/2012] [Indexed: 12/17/2022] Open
Abstract
Intensive insulin therapy can prevent or slow the progression of long-term diabetes complications but, at the same time, it increases the risk for episodes of severe hypoglycemia. In our study, we used a protocol intended to mimic the levels of blood glucose that occur in type 1 diabetic patients under an intensive insulin therapy. Streptozotocin (STZ)-induced diabetic rats were treated subcutaneously with twice-daily insulin injections for 2weeks to induce hypoglycemic episodes. Brain cortical and hippocampal mitochondria were isolated and mitochondrial bioenergetics (respiratory chain and phosphorylation system) and oxidative status parameters (malondialdehyde (MDA) levels, mitochondrial aconitase activity and enzymatic and non-enzymatic antioxidant defenses) were analyzed. The protein levels of synaptophysin, a marker of synaptic integrity, and caspase 9 activity were also evaluated in cortical and hippocampal homogenates. Brain cortical mitochondria isolated from hyper- and recurrent hypoglycemic animals presented higher levels of MDA and α-tocopherol together with an increased glutathione disulfide reductase activity, lower manganese superoxide dismutase (MnSOD) activity and glutathione-to-glutathione disulfide (GSH/GSSG) ratio. No significant alterations were found in cortical mitochondrial respiratory chain and oxidative phosphorylation system. Hippocampal mitochondria from both experimental groups presented an impaired oxidative phosphorylation system characterized by a decreased mitochondrial energization potential and ATP levels and higher repolarization lag phase. In addition, higher MDA levels and decreased GSH/GSSG, α-tocopherol levels, and aconitase, glutathione peroxidase and MnSOD activities were observed in both groups of animals. Hippocampal mitochondria from recurrent hypoglycemic animals also showed an impairment of the respiratory chain characterized by a lower state 3 of respiration, respiratory control ratio and ADP/O index, and a higher state 4 of respiration. Additionally, a non-statistically significant decrease in synaptophysin protein levels was observed in cortical homogenates from recurrent hypoglycemic rats as well as in hippocampal homogenates from hyperglycemic and recurrent hypoglycemic rats. An increase in caspase 9 activity was also observed in hippocampal homogenates from hyperglycemic and recurrent hypoglycemic animals. Our results show that mitochondrial dysfunction induced by long-term hyperglycemic effects is exacerbated by recurrent hypoglycemia, which may compromise the function and integrity of brain cells.
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Affiliation(s)
- Susana Cardoso
- Center for Neuroscience and Cell Biology, University of Coimbra, Portugal; Department of Life Sciences, Faculty of Sciences and Technology, University of Coimbra, Portugal
| | - Renato X Santos
- Center for Neuroscience and Cell Biology, University of Coimbra, Portugal; Department of Life Sciences, Faculty of Sciences and Technology, University of Coimbra, Portugal
| | - Sónia C Correia
- Center for Neuroscience and Cell Biology, University of Coimbra, Portugal; Department of Life Sciences, Faculty of Sciences and Technology, University of Coimbra, Portugal
| | - Cristina Carvalho
- Center for Neuroscience and Cell Biology, University of Coimbra, Portugal; Department of Life Sciences, Faculty of Sciences and Technology, University of Coimbra, Portugal
| | - Maria S Santos
- Center for Neuroscience and Cell Biology, University of Coimbra, Portugal; Department of Life Sciences, Faculty of Sciences and Technology, University of Coimbra, Portugal
| | - Inês Baldeiras
- Center for Neuroscience and Cell Biology, University of Coimbra, Portugal; Laboratory of Neurochemistry, Coimbra University Hospital, Portugal; Neurology Department, Faculty of Medicine, University of Coimbra, Portugal
| | - Catarina R Oliveira
- Center for Neuroscience and Cell Biology, University of Coimbra, Portugal; Institute of Biochemistry, Faculty of Medicine, University of Coimbra, Portugal
| | - Paula I Moreira
- Center for Neuroscience and Cell Biology, University of Coimbra, Portugal; Institute of Physiology, Faculty of Medicine, University of Coimbra, 3000-354 Coimbra, Portugal.
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