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Cakmak-Arslan G, Kaya Y, Mamuk S, Akarsu ES, Severcan F. The investigation of the molecular changes during lipopolysaccharide-induced systemic inflammation on rat hippocampus by using FTIR spectroscopy. JOURNAL OF BIOPHOTONICS 2024; 17:e202300541. [PMID: 38531619 DOI: 10.1002/jbio.202300541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2023] [Revised: 02/12/2024] [Accepted: 03/13/2024] [Indexed: 03/28/2024]
Abstract
The aim of this study is to reveal the molecular changes accompanying the neuronal hyper-excitability during lipopolysaccharide (LPS)-induced systemic inflammation on rat hippocampus using Fourier transform infrared (FTIR) spectroscopy. For this aim, the body temperature of Wistar albino rats administered LPS or saline was recorded by radiotelemetry. The animals were decapitated when their body temperature began to decrease by 0.5°C after LPS treatment and the hippocampi of them were examined by FTIR spectroscopy. The results indicated that systemic inflammation caused lipid peroxidation, an increase in the amounts of lipids, proteins and nucleic acids, a decrease in membrane order, an increase in membrane dynamics and changes in the secondary structure of proteins. Principal component analysis successfully separated control and LPS-treated groups. In conclusion, significant structural, compositional and functional alterations occur in the hippocampus during systemic inflammation and these changes may have specific characteristics which can lead to neuronal hyper-excitability.
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Affiliation(s)
- Gulgun Cakmak-Arslan
- Department of Biology, Faculty of Arts and Sciences, Duzce University, Duzce, Turkey
| | - Yildiray Kaya
- Department of Biology, Faculty of Arts and Sciences, Duzce University, Duzce, Turkey
| | - Soner Mamuk
- Department of Medical Pharmacology, Faculty of Medicine, Ankara University, Ankara, Turkey
| | - Eyup Sabri Akarsu
- Department of Medical Pharmacology, Faculty of Medicine, Ankara University, Ankara, Turkey
| | - Feride Severcan
- Department of Biophysics, Faculty of Medicine, Altinbas University, Istanbul, Turkey
- Department of Biological Sciences, Middle East Technical University, Ankara, Turkey
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Fernández-Rodríguez S, Cano-Cebrián MJ, Esposito-Zapero C, Pérez S, Guerri C, Zornoza T, Polache A. N-Acetylcysteine normalizes brain oxidative stress and neuroinflammation observed after protracted ethanol abstinence: a preclinical study in long-term ethanol-experienced male rats. Psychopharmacology (Berl) 2023; 240:725-738. [PMID: 36708386 PMCID: PMC10006045 DOI: 10.1007/s00213-023-06311-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Accepted: 01/04/2023] [Indexed: 01/29/2023]
Abstract
RATIONALE Using a preclinical model based on the Alcohol Deprivation Effect (ADE), we have reported that N-Acetylcysteine (NAC) can prevent the relapse-like drinking behaviour in long-term ethanol-experienced male rats. OBJECTIVES To investigate if chronic ethanol intake and protracted abstinence affect several glutamate transporters and whether NAC, administered during the withdrawal period, could restore the ethanol-induced brain potential dysfunctions. Furthermore, the antioxidant and anti-inflammatory effects of NAC during abstinence in rats under the ADE paradigm were also explored. METHODS The expression of GLT1, GLAST and xCT in nucleus accumbens (Nacc) and dorsal striatum (DS) of male Wistar was analysed after water and chronic ethanol intake. We used the model based on the ADE within another cohort of male Wistar rats. During the fourth abstinence period, rats were treated for 9 days with vehicle or NAC (60, 100 mg/kg; s.c.). The effects of NAC treatment on (i) glutamate transporters expression in the Nacc and DS, (ii) the oxidative status in the hippocampus (Hip) and amygdala (AMG) and (iii) some neuroinflammatory markers in prefrontal cortex (PFC) were tested. RESULTS NAC chronic administration during protracted abstinence restored oxidative stress markers (GSSG and GGSH/GSH) in the Hip. Furthermore, NAC was able to normalize some neuroinflammation markers in PFC without normalizing the observed downregulation of GLT1 and GLAST in Nacc. CONCLUSIONS NAC restores brain oxidative stress and neuroinflammation that we previously observed after protracted ethanol abstinence in long-term ethanol-experienced male rats. This NAC effect could be a plausible mechanism for its anti-relapse effect. Also, brain oxidative stress and neuroinflammation could represent and identify plausible targets for searching new anti-relapse pharmacotherapies.
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Affiliation(s)
- Sandra Fernández-Rodríguez
- Department of Pharmacy and Pharmaceutical Technology and Parasitology, Faculty of Pharmacy, University of Valencia, Burjassot, 46100, Valencia, Spain
| | - María José Cano-Cebrián
- Department of Pharmacy and Pharmaceutical Technology and Parasitology, Faculty of Pharmacy, University of Valencia, Burjassot, 46100, Valencia, Spain
| | - Claudia Esposito-Zapero
- Department of Pharmacy and Pharmaceutical Technology and Parasitology, Faculty of Pharmacy, University of Valencia, Burjassot, 46100, Valencia, Spain
| | - Salvador Pérez
- Department of Physiology, Faculty of Pharmacy, University of Valencia, Burjassot, 46100, Valencia, Spain
| | - Consuelo Guerri
- Department of Molecular and Cellular Pathology of Alcohol, Príncipe Felipe Research Center, Valencia, Spain
| | - Teodoro Zornoza
- Department of Pharmacy and Pharmaceutical Technology and Parasitology, Faculty of Pharmacy, University of Valencia, Burjassot, 46100, Valencia, Spain
| | - Ana Polache
- Department of Pharmacy and Pharmaceutical Technology and Parasitology, Faculty of Pharmacy, University of Valencia, Burjassot, 46100, Valencia, Spain.
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Elibol B, Severcan M, Jakubowska-Dogru E, Dursun I, Severcan F. The structural effects of Vitamin A deficiency on biological macromolecules due to ethanol consumption and withdrawal: An FTIR study with chemometrics. JOURNAL OF BIOPHOTONICS 2022; 15:e202100377. [PMID: 35333440 DOI: 10.1002/jbio.202100377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Revised: 03/21/2022] [Accepted: 03/22/2022] [Indexed: 06/14/2023]
Abstract
The structural effects of vitamin A-deficiency were examined on the molecular profiles of biomolecules of male rat hippocampus during prolonged ethanol intake/withdrawal using FT-IR spectroscopy coupled with chemometrics. Liquid ethanol diet with/without vitamin A was maintained to adult rats for 3-months. The rats were decapitated at different ethanol withdrawal times and FT-IR spectra were obtained. Ethanol consumption/withdrawal produced significant changes in proteins' conformations, while having insignificant structural effects on lipids. In vitamin A deficiency, ethanol produced structural changes in lipids by lipid ordering especially in the early-ethanol withdrawal. Furthermore, an increase in lipid and protein content, saturated/unsaturated lipid ratio, a decrease in nucleic acids content and decrease in membrane fluidity were observed. These changes were less severe in the presence of Vitamin A. This study is clinically important for individuals with vitamin A deficiency because they have to be more cautious when consuming alcohol to protect themselves from cognitive dysfunctions.
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Affiliation(s)
- Birsen Elibol
- Faculty of Medicine, Department of Medical Biology, Bezmialem Vakif University, Istanbul, Turkey
| | - Mete Severcan
- Department of Electrical and Electronics Engineering, Middle East Technical University, Ankara, Turkey
| | - Ewa Jakubowska-Dogru
- Department of Biological Sciences, Middle East Technical University, Ankara, Turkey
| | - Ilknur Dursun
- Faculty of Medicine, Department of Physiology, Istinye University, Istanbul, Turkey
| | - Feride Severcan
- Department of Biological Sciences, Middle East Technical University, Ankara, Turkey
- Faculty of Medicine, Department of Biophysics, Altinbas University, Istanbul, Turkey
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Fernández-Rodríguez S, Cano-Cebrián MJ, Rius-Pérez S, Pérez S, Guerri C, Granero L, Zornoza T, Polache A. Different brain oxidative and neuroinflammation status in rats during prolonged abstinence depending on their ethanol relapse-like drinking behavior: Effects of ethanol reintroduction. Drug Alcohol Depend 2022; 232:109284. [PMID: 35033958 DOI: 10.1016/j.drugalcdep.2022.109284] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Revised: 12/17/2021] [Accepted: 01/03/2022] [Indexed: 12/17/2022]
Abstract
RATIONALE Accumulating evidence suggests that chronic alcohol consumption is associated with excessive oxidative damage and neuroinflammatory processes and these events have been associated to early alcohol withdrawal. In the present research we wonder if brain oxidative stress and neuroinflammation remains altered during prolonged withdrawal situations and whether these alterations can be correlated with relapse behavior in alcohol consumption. The effects of alcohol reintroduction were also evaluated METHODS: We have used a model based on the alcohol deprivation effect (ADE) within a cohort of wild-type male Wistar rats. Two subpopulations were identified according to the alcohol relapse-like drinking behavior displayed (ADE and NO-ADE subpopulations). Oxidized and reduced glutathione content was determined within the hippocampus and the amygdala using a mass spectrometry method. The levels of mRNA of seven different inflammatory mediators in the prefrontal cortex of rats were quantified. All the analyses were performed in two different conditions: after 21-day alcohol deprivation (prolonged abstinence) and after 24 h of ethanol reintroduction in both subpopulations. RESULTS ADE and NO-ADE rats showed different endophenotypes. ADE rats always displayed a significant lower alcohol intake rate and ethanol preference than NO-ADE rats. The results also demonstrated the existence of altered brain redox and neuroinflammation status after prolonged abstinence exclusively in ADE rats. Moreover, when ethanol was reintroduced in the ADE subpopulation, altered oxidative stress and neuroinflammatory markers were restored. CONCLUSIONS Present findings provide new mechanisms underlying the neurobiology of relapse behavior and suggest the development of new pharmacological approaches to treat alcohol-induced relapse.
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Affiliation(s)
- S Fernández-Rodríguez
- Departament de Farmàcia i Tecnologia Farmacèutica i Parasitologia, Universitat de València, Avda Vicente Andrés Estellés, s/n 46100 Burjassot, Spain
| | - M J Cano-Cebrián
- Departament de Farmàcia i Tecnologia Farmacèutica i Parasitologia, Universitat de València, Avda Vicente Andrés Estellés, s/n 46100 Burjassot, Spain
| | - S Rius-Pérez
- Departament de Fisiologia, Universitat de València, Avda Vicente Andrés Estellés, s/n 46100 Burjassot, Spain
| | - S Pérez
- Departament de Fisiologia, Universitat de València, Avda Vicente Andrés Estellés, s/n 46100 Burjassot, Spain
| | - C Guerri
- Department of Molecular and Cellular Pathology of Alcohol, Príncipe Felipe Research Center, Carrer d'Eduardo Primo Yúfera, 3, 46012 Valencia, Spain
| | - L Granero
- Departament de Farmàcia i Tecnologia Farmacèutica i Parasitologia, Universitat de València, Avda Vicente Andrés Estellés, s/n 46100 Burjassot, Spain
| | - T Zornoza
- Departament de Farmàcia i Tecnologia Farmacèutica i Parasitologia, Universitat de València, Avda Vicente Andrés Estellés, s/n 46100 Burjassot, Spain.
| | - A Polache
- Departament de Farmàcia i Tecnologia Farmacèutica i Parasitologia, Universitat de València, Avda Vicente Andrés Estellés, s/n 46100 Burjassot, Spain
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Cakmak-Arslan G, Haksoy H, Goc-Rasgele P, Kekecoglu M. Determination of the dose-dependent toxic effects of mad honey on mouse liver using ATR-FTIR spectroscopy. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 228:117719. [PMID: 31753646 DOI: 10.1016/j.saa.2019.117719] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Revised: 10/08/2019] [Accepted: 10/26/2019] [Indexed: 06/10/2023]
Abstract
Mad honey (MH) is obtained from Rhododendron plants, which are extensively grown in some regions of the world such as Europe, North America, Tropical Asia and Turkey. Although it has been known that MH induces adverse effects in the body due to grayanotoxin (GTX) in it, it is widely used for some medical purposes by the public. In this study, the effects of MH (25, 50 and 75 mg/kg) and GTX-III (0.01 mg/kg), which is the pure form of the most toxic type of the GTXs in MH, were investigated on the mouse liver at molecular level via Attenuated Total Reflection-Fourier Transform Infrared (ATR-FTIR) spectroscopy. The results showed that 25 and 50 mg/kg of MH didn't cause any significant alterations in the liver tissue except a decrease in the glycogen amount. However, significant differences were observed between 75 mg/kg MH and GTX-III treated groups and control group. For example, the amounts of saturated lipids, nucleic acids and proteins increased in the 75 mg/kg MH and GTX-III treated groups. A decrease in the ratios of unsaturated/saturated lipid, CH2/lipid and carbonyl/lipid and an increase in the ratio of CH3/lipid were observed after the administration of 75 mg/kg MH and GTX-III, all of which may be a consequence of lipid peroxidation. Moreover, 75 mg/kg MH and GTX-III caused a decrease in the membrane order, an increase in the membrane fluidity and some important changes on the secondary structure of proteins indicating protein denaturation. In addition, Hierarchical Cluster Analysis (HCA) and Principal Component Analysis (PCA) confirmed these findings. These results revealed that MH induces significant dose-dependent toxic effects in the structure and function of the liver tissue. This study also showed that ATR-FTIR spectroscopy provides a rapid and sensitive monitoring of the changes induced by a toxic compound on biological tissues at molecular level.
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Affiliation(s)
- Gulgun Cakmak-Arslan
- Department of Biology, Faculty of Arts and Sciences, Duzce University, 81620, Duzce, Turkey.
| | - Humeyra Haksoy
- Department of Biology, Faculty of Arts and Sciences, Duzce University, 81620, Duzce, Turkey
| | - Pinar Goc-Rasgele
- Department of Biosystems Engineering, Faculty of Agriculture and Natural Sciences, Duzce University, 81620, Duzce, Turkey
| | - Meral Kekecoglu
- Department of Biology, Faculty of Arts and Sciences, Duzce University, 81620, Duzce, Turkey
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ÇAKMAK-ARSLAN G, HAKSOY H, GÖÇ-RASGELE P, KEKEÇOĞLU M. Time-dependent Investigation of Mad Honey and Grayanotoxin on Liver Tissue. KONURALP TIP DERGISI 2020. [DOI: 10.18521/ktd.598739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Alugoju P, Narsimulu D, Bhanu JU, Satyanarayana N, Periyasamy L. Role of quercetin and caloric restriction on the biomolecular composition of aged rat cerebral cortex: An FTIR study. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2019; 220:117128. [PMID: 31146210 DOI: 10.1016/j.saa.2019.05.033] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Revised: 05/10/2019] [Accepted: 05/12/2019] [Indexed: 06/09/2023]
Abstract
Aging brain is characterized by a change in biomolecular composition leading to a diverse range of neurological diseases. Anti-aging research is of current interest, to lessen the burden of age-related macromolecular damage through antioxidant supplementation and caloric restriction. However, data concerning the effect of these anti-aging regimens on age-related biomolecular changes in rat brain is still lacking. In the present study, for the first time, we employed Fourier transform infrared (FTIR) spectroscopy, to investigate the effect of quercetin, caloric restriction (CR) and combination of both on alterations in the composition of lipids and proteins of aged rat brain cerebral cortex. Aged male Wistar rats (21 months old) were divided into four groups: Control (CONT), fed pellet diet; Quercetin (QUER), fed quercetin (50 mg/kg/day); CR (caloric restriction) (fed 40% reduced CONT), and CRQ (40% CR and 50 mg/kg/day QUER). Three-month-old rats served as young control (YOUNG). Our short-term study (45 days) shows decreased band area of unsaturated lipids, decreased area ratios of olefinic/lipid and CH2 antisymmetric stretching (2925 cm-1)/lipids in CONT group compared to young rats, suggesting age-associated lipid peroxidation in aged rats. A slight decrease in the frequency of CH2 antisymmetric mode of lipids (whereas no change in CH2 symmetric mode), but a decrease in bandwidths of both CH2 antisymmetric and symmetric modes of lipids was observed for CONT group compared to YOUNG. Further, a significant decrease in the peak area of infrared bands of proteins and an increase in the peak area of the CO band of lipids was observed in the CONT group. Our data also show that lower levels of α-helical structures and higher levels of random coils, representing altered protein secondary structure composition in the CONT group compared to YOUNG group. Reduction in neuronal cell density and shrinked nucleus was also observed in aged rats. Increase in the accumulation of oxidative mediated damage to macromolecules and diminished antioxidant levels, could be the possible reason for the age-related alterations in the composition of lipids and proteins. However, the combination of quercetin and CR, but not either treatment alone, significantly prevented the age associated alterations in the lipid and protein profiles in the rat cerebral cortex. Further, our results help to understand the mechanism of action of antioxidants under non-restriction and CR conditions, this might help in the development of novel anti-aging treatments to ameliorate oxidative stress in age-related disorders.
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Affiliation(s)
- Phaniendra Alugoju
- Department of Biochemistry and Molecular Biology, Pondicherry University, Puducherry 605 014, India
| | - D Narsimulu
- Department of Physics, Pondicherry University, Puducherry 605 014, India
| | - J Udaya Bhanu
- Centre for Nanoscience and Technology, Pondicherry University, Puducherry 605 014, India
| | - N Satyanarayana
- Department of Physics, Pondicherry University, Puducherry 605 014, India
| | - Latha Periyasamy
- Department of Biochemistry and Molecular Biology, Pondicherry University, Puducherry 605 014, India.
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Womersley JS, Townsend DM, Kalivas PW, Uys JD. Targeting redox regulation to treat substance use disorder using N‐acetylcysteine. Eur J Neurosci 2018; 50:2538-2551. [PMID: 30144182 DOI: 10.1111/ejn.14130] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Revised: 06/28/2018] [Accepted: 07/25/2018] [Indexed: 12/17/2022]
Abstract
Substance use disorder (SUD) is a chronic relapsing disorder characterized by transitioning from acute drug reward to compulsive drug use. Despite the heavy personal and societal burden of SUDs, current treatments are limited and unsatisfactory. For this reason, a deeper understanding of the mechanisms underlying addiction is required. Altered redox status, primarily due to drug-induced increases in dopamine metabolism, is a unifying feature of abused substances. In recent years, knowledge of the effects of oxidative stress in the nervous system has evolved from strictly neurotoxic to include a more nuanced role in redox-sensitive signaling. More specifically, S-glutathionylation, a redox-sensitive post-translational modification, has been suggested to influence the response to drugs of abuse. In this review we will examine the evidence for redox-mediating drugs as therapeutic tools focusing on N-acetylcysteine as a treatment for cocaine addiction. We will conclude by suggesting future research directions that may further advance this field.
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Affiliation(s)
- Jacqueline S Womersley
- Department of Cellular and Molecular Pharmacology and Experimental Therapeutics, Medical University of South Carolina, 409 Drug Discovery Building, 70 President Street, Charleston, SC, 29425, USA
| | - Danyelle M Townsend
- Department of Drug Discover and Biomedical Sciences, Medical University of South Carolina, Charleston, SC, USA
| | - Peter W Kalivas
- Department of Neuroscience, Medical University of South Carolina, Charleston, SC, USA
| | - Joachim D Uys
- Department of Cellular and Molecular Pharmacology and Experimental Therapeutics, Medical University of South Carolina, 409 Drug Discovery Building, 70 President Street, Charleston, SC, 29425, USA
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Mesquita-Britto MHR, Mendonça MCP, Soares ES, Sakane KK, da Cruz-Höfling MA. Inhibition of VEGF-Flk-1 binding induced profound biochemical alteration in the hippocampus of a rat model of BBB breakdown by spider venom. A preliminary assessment using FT-IR spectroscopy. Neurochem Int 2018; 120:64-74. [PMID: 30075232 DOI: 10.1016/j.neuint.2018.07.011] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Revised: 07/05/2018] [Accepted: 07/30/2018] [Indexed: 12/14/2022]
Abstract
Phoneutria nigriventer spider venom (PNV) contains ion channels-acting neuropeptides that in rat induces transitory blood-brain barrier breakdown (BBBb) in hippocampus in parallel with VEGF upregulation. We investigated whether VEGF has a neuroprotective role by inhibiting its binding to receptor Flk-1 by itraconazole (ITZ). FT-IR spectroscopy examined the biochemical status of hippocampus and evaluated BBBb in rats administered PNV or ITZ/PNV at periods with greatest toxicity (1-2h), recovery (5h) and visual absence of symptoms (24h), and compared to saline and ITZ controls. The antifungal treatment before venom intoxication aggravated the venom effects and increased BBB damage. FT-IR spectra of venom, hippocampi of controls, PNV and ITZ-PNV showed a 1400 cm-1 band linked to symmetric stretch of carboxylate and 1467 cm-1 band (CH2 bending: mainly lipids) that were considered biomarker and reference bands, respectively. Inhibition of VEGF/Flk-1 binding produced marked changes in lipid/protein stability at 1-2h. The largest differences were observed in spectra regions assigned to lipids, both symmetric (2852 cm-1) and asymmetric (2924 and 2968 cm-1). Quantitative analyses showed greatest increases in the 1400 cm-1/1467 cm-1 ratio also at 1h. Such changes at period of rats' severe intoxication referred to wavenumber region from 3106 cm-1 to 687 cm-1 assigning for C-H and N-H stretching of protein, Amide I, C=N cytosine, N-H adenine, Amide II, CH2 bending: mainly lipids, C-O stretch: glycogen, polysaccharides, glycolipids, z-type DNA, C-C, C-O and CH out-of-plane bending vibrations. We conclude that VEGF has a neuroprotective role and can be a therapeutic target in PNV envenomation. FT-IR spectroscopy showed to be instrumental for monitoring biochemical changes in this model of P. nigriventer venom-induced BBB disruption.
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Affiliation(s)
- Maria Helena Rodrigues Mesquita-Britto
- Department of Pharmacology, Faculty of Medical Sciences, State University of Campinas (UNICAMP), Campinas, São Paulo, Brazil; Department of Biochemistry and Tissue Biology, Institute of Biology, State University of Campinas (UNICAMP), Campinas, São Paulo, Brazil
| | - Monique Culturato Padilha Mendonça
- Department of Pharmacology, Faculty of Medical Sciences, State University of Campinas (UNICAMP), Campinas, São Paulo, Brazil; Department of Biochemistry and Tissue Biology, Institute of Biology, State University of Campinas (UNICAMP), Campinas, São Paulo, Brazil
| | - Edilene Siqueira Soares
- Department of Biochemistry and Tissue Biology, Institute of Biology, State University of Campinas (UNICAMP), Campinas, São Paulo, Brazil
| | - Kumiko Koibuchi Sakane
- Institute for Research and Development, University of Vale do Paraíba, São José dos Campos, São Paulo, Brazil
| | - Maria Alice da Cruz-Höfling
- Department of Pharmacology, Faculty of Medical Sciences, State University of Campinas (UNICAMP), Campinas, São Paulo, Brazil; Department of Biochemistry and Tissue Biology, Institute of Biology, State University of Campinas (UNICAMP), Campinas, São Paulo, Brazil.
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Study of acetylcholinesterase activity and apoptosis in SH-SY5Y cells and mice exposed to ethanol. Toxicology 2017; 384:33-39. [PMID: 28427893 DOI: 10.1016/j.tox.2017.04.007] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2017] [Revised: 04/14/2017] [Accepted: 04/16/2017] [Indexed: 02/06/2023]
Abstract
Ethanol is one of the most commonly abused psychotropic substances with deleterious effects on the central nervous system. Ethanol exposure during development results in the loss of neurons in brain regions and when exposed to ethanol cultured cells undergo apoptosis. To date no information is available on whether abnormally high AChE activity is characteristic of apoptosis in animals exposed to ethanol. The aims of the present study were to determine whether induction of AChE activity is associated with ethanol-induced apoptosis and to explore the mechanism of enhanced AChE activity induced by ethanol. For this purpose, in vitro and in vivo experiments were performed. AChE activity was quantified by spectrophotometry and apoptosis by flow cytometer in SH-SY5Y cells exposed to ethanol. The results showed that cells treated with 500mM ethanol for 24h had a 9-fold increase in apoptotic cells and a 6-fold increase in AChE activity compared with controls. Mice exposed acutely to 200μl of 20% ethanol daily on days 1-4 had elevated AChE activity in plasma on days 3-7. On day 4, plasma AChE activity was 2.4-fold higher than pretreatment activity. More apoptotic cells were found in the brains of treated mice compared to controls. Cells in brain sections that were positive in the TUNEL assay stained for AChE activity. In conclusion, AChE activity and apoptosis were induced in SH-SY5Y cells and mice treated with ethanol, which may indicate that increased AChE may related to apoptosis induced by ethanol. Unusually high AChE activity may be an effect marker of exposure to ethanol. The relationship between AChE and apoptosis might represent a novel mechanism of ethanol-associated neuronal injury.
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Türker-Kaya S, Mutlu O, Çelikyurt İK, Akar F, Ulak G. Tianeptine, olanzapine and fluoxetine show similar restoring effects on stress induced molecular changes in mice brain: An FT-IR study. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2016; 161:178-185. [PMID: 26952787 DOI: 10.1016/j.saa.2016.02.038] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2015] [Revised: 01/29/2016] [Accepted: 02/28/2016] [Indexed: 06/05/2023]
Abstract
Chronic stress which can cause a variety of disorders and illness ranging from metabolic and cardiovascular to mental leads to alterations in content, structure and dynamics of biomolecules in brain. The determination of stress-induced changes along with the effects of antidepressant treatment on these parameters might bring about more effective therapeutic strategies. In the present study, we investigated unpredictable chronic mild stress (UCMS)-induced changes in biomolecules in mouse brain and the restoring effects of tianeptine (TIA), olanzapine (OLZ) and fluoxetine (FLX) on these variations, by Fourier transform infrared (FT-IR) spectroscopy. The results revealed that chronic stress causes different membrane packing and an increase in lipid peroxidation, membrane fluidity. A significant increment for lipid/protein, C=O/lipid, CH3/lipid, CH2/lipid, PO(-)2/lipid, COO(-)/lipid and RNA/protein ratios but a significant decrease for lipid/protein ratios were also obtained. Additionally, altered protein secondary structure components were estimated, such as increment in random coils and beta structures. The administration of TIA, OLZ and FLX drugs restored these stress-induced variations except for alterations in protein structure and RNA/protein ratio. This may suggest that these drugs have similar restoring effects on the consequences of stress activity in brain, in spite of the differences in their action mechanisms. All findings might have importance in understanding molecular mechanisms underlying chronic stress and contribute to studies aimed for drug development.
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Affiliation(s)
- Sevgi Türker-Kaya
- Department of Biology, Faculty of Arts and Sciences, 41380, Kocaeli, Turkey.
| | - Oğuz Mutlu
- Department of Pharmacology, Faculty of Medicine, 41380, Kocaeli, Turkey
| | - İpek K Çelikyurt
- Department of Pharmacology, Faculty of Medicine, 41380, Kocaeli, Turkey
| | - Furuzan Akar
- Department of Pharmacology, Faculty of Medicine, 41380, Kocaeli, Turkey
| | - Güner Ulak
- Department of Pharmacology, Faculty of Medicine, 41380, Kocaeli, Turkey
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Womersley JS, Uys JD. S-Glutathionylation and Redox Protein Signaling in Drug Addiction. PROGRESS IN MOLECULAR BIOLOGY AND TRANSLATIONAL SCIENCE 2015; 137:87-121. [PMID: 26809999 DOI: 10.1016/bs.pmbts.2015.10.001] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Drug addiction is a chronic relapsing disorder that comes at a high cost to individuals and society. Therefore understanding the mechanisms by which drugs exert their effects is of prime importance. Drugs of abuse increase the production of reactive oxygen and nitrogen species resulting in oxidative stress. This change in redox homeostasis increases the conjugation of glutathione to protein cysteine residues; a process called S-glutathionylation. Although traditionally regarded as a protective mechanism against irreversible protein oxidation, accumulated evidence suggests a more nuanced role for S-glutathionylation, namely as a mediator in redox-sensitive protein signaling. The reversible modification of protein thiols leading to alteration in function under different physiologic/pathologic conditions provides a mechanism whereby change in redox status can be translated into a functional response. As such, S-glutathionylation represents an understudied means of post-translational protein modification that may be important in the mechanisms underlying drug addiction. This review will discuss the evidence for S-glutathionylation as a redox-sensing mechanism and how this may be involved in the response to drug-induced oxidative stress. The function of S-glutathionylated proteins involved in neurotransmission, dendritic spine structure, and drug-induced behavioral outputs will be reviewed with specific reference to alcohol, cocaine, and heroin.
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Affiliation(s)
- Jacqueline S Womersley
- Department of Cellular and Molecular Pharmacology and Experimental Therapeutics, Medical University of South Carolina, Charleston, South Carolina, USA
| | - Joachim D Uys
- Department of Cellular and Molecular Pharmacology and Experimental Therapeutics, Medical University of South Carolina, Charleston, South Carolina, USA.
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13
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Vitamin A deficiency induces structural and functional alterations in the molecular constituents of the rat hippocampus. Br J Nutr 2014; 113:45-55. [DOI: 10.1017/s0007114514003432] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
To date, no structural study has been carried out on the effects of vitamin A deficiency (VAD) on hippocampal macromolecules. Therefore, in the present study, the effect of dietary VAD on the structure, content and function of rat hippocampal molecules was investigated using Fourier transform IF spectroscopy. Male Wistar rats were randomly divided into three groups: an experimental group maintained on a vitamin A-deficient liquid diet (VAD,n7); a control group maintained on a vitamin A-supplemented liquid diet (CON,n9); a pure control group maintained on standard solid laboratory chow (PC,n7). The PC group was included in the study to ensure that the usage of liquid diet did not influence the outcomes of VAD. Both the CON and PC groups were successfully discriminated from the VAD group by principal component analysis and hierarchical cluster analysis. The spectral analysis indicated a significant decrease in the contents of saturated and unsaturated lipids, cholesteryl esters, TAG and nucleic acids in the VAD group when compared with the CON group (P≤ 0·05). In addition, a significant decrease in membrane fluidity and a significant increase in lipid order (e.g. acyl chain flexibility) were observed in the VAD group (P≤ 0·001). The results of the artificial neural network analysis revealed a significant decrease in the α-helix structure content and a significant increase in the turn and random coil structure contents, indicating protein denaturation, in the VAD group when compared with the CON and PC groups (P≤ 0·05). Dietary exclusion of vitamin A for 3 months apparently had an adverse impact on compositional, structural and dynamical parameters. These changes can be due to increased oxidative stress, confirming the antioxidant protection provided by vitamin A when used as a dietary supplement at low-to-moderate doses.
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14
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Bae M, Bandaru VVR, Patel N, Haughey NJ. Ceramide metabolism analysis in a model of binge drinking reveals both neuroprotective and toxic effects of ethanol. J Neurochem 2014; 131:645-54. [PMID: 25060779 DOI: 10.1111/jnc.12834] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2014] [Revised: 06/25/2014] [Accepted: 06/27/2014] [Indexed: 01/05/2023]
Abstract
Binge drinking is a common form of alcohol abuse that involves repeated rounds of intoxication followed by withdrawal. The episodic effects of binge drinking and withdrawal on brain resident cells are thought to contribute to neural remodeling and neurological damage. However, the molecular mechanisms for these neurodegenerative effects are not understood. Ethanol (EtOH) regulates the metabolism of ceramide, a highly bioactive lipid that is enriched in brain. We used a mouse model of binge drinking to determine the effects of EtOH intoxication and withdrawal on brain ceramide metabolism. Intoxication and acute alcohol withdrawal were each associated with distinct changes in ceramide regulatory genes and metabolic products. EtOH intoxication was accompanied by decreased concentrations of multiple ceramides, coincident with reductions in the expression of enzymes involved in the production of ceramides, and increased expression of ceramide-degrading enzymes. EtOH withdrawal was associated with specific increases in ceramide C16:0, C18:0, and C20:0 and increased expression of enzymes involved with ceramide production. These data suggest that EtOH intoxication may evoke a ceramide phenotype that is neuroprotective, whereas EtOH withdrawal results in a metabolic shift that increases the production of potentially toxic ceramide species.
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Affiliation(s)
- Mihyun Bae
- Richard T. Johnson Division of Neuroimmunology and Neurological Infections, Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
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15
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Gioacchini G, Giorgini E, Vaccari L, Ferraris P, Sabbatini S, Bianchi V, Borini A, Carnevali O. A new approach to evaluate aging effects on human oocytes: Fourier transform infrared imaging spectroscopy study. Fertil Steril 2014; 101:120-7. [DOI: 10.1016/j.fertnstert.2013.09.012] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2013] [Revised: 09/03/2013] [Accepted: 09/09/2013] [Indexed: 01/21/2023]
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16
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Ceylan C, Tanrikul T, Özgener H. Biophysical evaluation of physiological effects of gilthead sea bream (Sparus aurata) farming using FTIR spectroscopy. Food Chem 2013; 145:1055-60. [PMID: 24128583 DOI: 10.1016/j.foodchem.2013.08.111] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2012] [Revised: 04/08/2013] [Accepted: 08/28/2013] [Indexed: 12/21/2022]
Abstract
Sparus aurata is one of the two most important cultured fish species in the Mediterranean region. The present work investigates the effects of culturing in S. aurata liver tissue at the molecular level using Fourier Transform Infrared (FTIR) spectroscopy. FTIR spectroscopy revealed dramatic differences between the wild and aquacultured fish liver cells, which mainly indicated that the level of glycogen increased in the aquacultured samples and the protein/lipid ratio decreased by 42.29% indicating that triglycerides and cholesterol esters increased and the protein content decreased in the aquacultured samples. The 15.99% increase in the level of unsaturation indicated elevated lipid peroxidation. Structural/organisational changes in the nucleic acids along with increased transcriptional status of the liver tissue cells were observed in the cultured fish tissue. All these results indicated that culturing induces significant changes in fish physiology. In addition FTIR spectroscopy is a promising method to monitor the physiological changes in fish physiology.
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Affiliation(s)
- Cagatay Ceylan
- İzmir Institute of Technology, Department of Food Engineering, Urla, İzmir, Turkey.
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17
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Sarioglu OF, Tamer YT, Ozkan AD, Atabay HI, Molva C, Tekinay T. Fourier transform infrared spectroscopy as a novel approach for analyzing the biochemical effects of anionic surfactants on a surfactant-degrading Arcobacter butzleri strain. APPLIED SPECTROSCOPY 2013; 67:470-475. [PMID: 23601548 DOI: 10.1366/12-06609] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Anionic surfactant-biodegrading capability of an Arcobacter butzleri strain was analyzed under aerobic conditions. The A. butzleri isolate displayed efficient surfactant-biodegrading capacity for sodium dodecyl sulfate (SDS) at concentrations of up to 100 mg/L in 6 days, corresponding to 99.0% removal efficiency. Fourier transform infrared spectroscopy was applied to observe the effects of varying concentrations of SDS on the biochemistry of bacterial cells. Results suggest that protein secondary structures were altered in bacterial cells at sufficiently high SDS concentrations, concurrent with SDS biodegradation.
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Affiliation(s)
- Omer Faruk Sarioglu
- Bilkent University, National Nanotechnology Research Center, Bilkent, Ankara 06800, Turkey
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Ceylan C, Camgoz A, Baran Y. Macromolecular Changes in Nilotinib Resistant K562 Cells; an In vitro Study by Fourier Transform Infrared Spectroscopy. Technol Cancer Res Treat 2012; 11:333-44. [DOI: 10.7785/tcrt.2012.500281] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Nilotinib is a second generation tyrosine kinase inhibitor which is used in both first and second line treatment of chronic myeloid leukemia (CML). In the present work, the effects of nilotinib resistance on K562 cells were investigated at the molecular level using Fourier transform infrared (FT-IR) spectroscopy. Human K562 CML cells were exposed to step-wise increasing concentrations of nilotinib, and sub-clones of K562 cells resistant to 50 nM nilotinib were generated and referred to as K562/NIL-50 cells. Antiproliferative effects of nilotinib were determined by XTT cell proliferation assay. Changes in macromolecules in parental and resistant cells were studied by FT-IR spectroscopy. Nilotinib resistance caused significant changes which indicated increases in the level of glycogen and membrane/lipid order. The amount of unsaturated lipids increased in the nilotinib resistant cells indicating lipid peroxidation. The total amount of lipids did not change significantly but the relative proportion of cholesterol and triglycerides altered considerably. Moreover, the transcriptional status decreased but metabolic turn-over increased as revealed by the FT-IR spectra. In addition, changes in the proteome and structural changes in both proteins and the nucleus were observed in the K562/NIL-50 cells. Protein secondary structural analyses revealed that alpha helix structure and random coil structure decreased, however, anti-parallel beta sheet structure, beta sheet structure and turns structure increased. These results indicate that the FT-IR technique provides a method for analyzing drug resistance related structural changes in leukemia and other cancer types.
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Affiliation(s)
- Cagatay Ceylan
- İzmir Institute of Technology, Department of Food Engineering, Urla, İzmir, Turkey
| | - Aylin Camgoz
- İzmir Institute of Technology, Department of Molecular Biology and Genetics, Urla, İzmir, Turkey
| | - Yusuf Baran
- İzmir Institute of Technology, Department of Molecular Biology and Genetics, Urla, İzmir, Turkey
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