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Rzepczyk S, Świderski P, Sommerfeld-Klatta K, Tezyk A, Łukasik-Głębocka M, Zielińska-Psuja B, Żaba Z, Żaba C. Causes of Death during the Intravenous Infusion of Dimethylsulphoxide and Hydrogen Peroxide in the Course of Alternative Medicine Therapy. TOXICS 2023; 11:652. [PMID: 37624158 PMCID: PMC10457729 DOI: 10.3390/toxics11080652] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Revised: 07/25/2023] [Accepted: 07/26/2023] [Indexed: 08/26/2023]
Abstract
Unconventional (alternative, natural) medicine in Poland and worldwide includes hundreds of non-scientifically verified "treatment" modalities. Among the most popular are biological therapies using chemical or natural compounds administered with injection or drip infusion. The latter has found the most excellent use in treating rheumatological and dermatological diseases and certain types of cancer. Vitamin infusions, curcumin, glutathione, perhydrol and dimethylsulphoxide (DMSO) have gained popularity among clients of natural medicine clinics. The present study aims to analyse the case of a 37-year-old woman who was administered infusions containing perhydrol and DMSO (0.5 mL 0.04% hydrogen peroxide/0.5 mL p.d.a DMSO in saline) due to a MTHFR A1298C mutation. After having the next infusion, the woman complained of nausea and then became unconscious. Subsequently, she suffered respiratory and cardiac arrest. Adequate resuscitation was undertaken. After being taken to the hospital, the patient was in critical condition and died due to increasing multiple-organ failure. Initially, there was suspected DMSO poisoning as it was the only compound to have been administered as an intravenous infusion. However, it was not until the analysis of the secured evidence that it became clear that the patient had also been given an intravenous solution of hydrogen peroxide, H2O2, and that there had been a mistake in preparing the intravenous perhydrol solution. The autopsy concluded that the immediate cause of death was an acute cardiopulmonary failure due to the toxic effects of intravenously administered hydrogen peroxide. This conclusion was established after the toxicological testing of the evidence and biological material secured during the patient's treatment and autopsy. Products containing DMSO and perhydrol are not included in the lists of medicinal/therapeutical forms and preparations and thus are not authorised for marketing in Poland. In the case of perhydrol, apart from the topical use of diluted preparations for washing and cleansing wounds, no data on therapeutic use exist in the available scientific literature. Furthermore, "DMSO and perhydrol therapy" cannot even be considered a placebo effect, as both are toxic compounds which could, at most, cause poisoning symptoms rather than improve health.
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Affiliation(s)
- Szymon Rzepczyk
- Department of Forensic Medicine, Poznan University of Medical Sciences, Rokietnicka 10, 60-806 Poznan, Poland
| | - Paweł Świderski
- Department of Forensic Medicine, Poznan University of Medical Sciences, Rokietnicka 10, 60-806 Poznan, Poland
| | - Karina Sommerfeld-Klatta
- Department of Toxicology, Poznan University of Medical Sciences, Dojazd 30, 60-631 Poznan, Poland
| | - Artur Tezyk
- Department of Forensic Medicine, Poznan University of Medical Sciences, Rokietnicka 10, 60-806 Poznan, Poland
| | - Magdalena Łukasik-Głębocka
- Department of Emergency Medicine, Poznan University of Medical Sciences, Rokietnicka 7, 60-806 Poznan, Poland
| | - Barbara Zielińska-Psuja
- Department of Toxicology, Poznan University of Medical Sciences, Dojazd 30, 60-631 Poznan, Poland
| | - Zbigniew Żaba
- Department of Emergency Medicine, Poznan University of Medical Sciences, Rokietnicka 7, 60-806 Poznan, Poland
| | - Czesław Żaba
- Department of Forensic Medicine, Poznan University of Medical Sciences, Rokietnicka 10, 60-806 Poznan, Poland
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Shim KH, Sharma N, An SSA. Prion therapeutics: Lessons from the past. Prion 2022; 16:265-294. [PMID: 36515657 PMCID: PMC9754114 DOI: 10.1080/19336896.2022.2153551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2022] [Revised: 10/31/2022] [Accepted: 11/02/2022] [Indexed: 12/15/2022] Open
Abstract
Prion diseases are a group of incurable zoonotic neurodegenerative diseases (NDDs) in humans and other animals caused by the prion proteins. The abnormal folding and aggregation of the soluble cellular prion proteins (PrPC) into scrapie isoform (PrPSc) in the Central nervous system (CNS) resulted in brain damage and other neurological symptoms. Different therapeutic approaches, including stalling PrPC to PrPSc conversion, increasing PrPSc removal, and PrPC stabilization, for which a spectrum of compounds, ranging from organic compounds to antibodies, have been explored. Additionally, a non-PrP targeted drug strategy using serpin inhibitors has been discussed. Despite numerous scaffolds being screened for anti-prion activity in vitro, only a few were effective in vivo and unfortunately, almost none of them proved effective in the clinical studies, most likely due to toxicity and lack of permeability. Recently, encouraging results from a prion-protein monoclonal antibody, PRN100, were presented in the first human trial on CJD patients, which gives a hope for better future for the discovery of other new molecules to treat prion diseases. In this comprehensive review, we have re-visited the history and discussed various classes of anti-prion agents, their structure, mode of action, and toxicity. Understanding pathogenesis would be vital for developing future treatments for prion diseases. Based on the outcomes of existing therapies, new anti-prion agents could be identified/synthesized/designed with reduced toxicity and increased bioavailability, which could probably be effective in treating prion diseases.
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Affiliation(s)
- Kyu Hwan Shim
- Department of Bionano Technology, Gachon University, Seongnam, South Korea
| | - Niti Sharma
- Department of Bionano Technology, Gachon University, Seongnam, South Korea
| | - Seong Soo A An
- Department of Bionano Technology, Gachon University, Seongnam, South Korea
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Kuwajima K, Yagi-Utsumi M, Yanaka S, Kato K. DMSO-Quenched H/D-Exchange 2D NMR Spectroscopy and Its Applications in Protein Science. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27123748. [PMID: 35744871 PMCID: PMC9230524 DOI: 10.3390/molecules27123748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Revised: 06/06/2022] [Accepted: 06/07/2022] [Indexed: 11/16/2022]
Abstract
Hydrogen/deuterium (H/D) exchange combined with two-dimensional (2D) NMR spectroscopy has been widely used for studying the structure, stability, and dynamics of proteins. When we apply the H/D-exchange method to investigate non-native states of proteins such as equilibrium and kinetic folding intermediates, H/D-exchange quenching techniques are indispensable, because the exchange reaction is usually too fast to follow by 2D NMR. In this article, we will describe the dimethylsulfoxide (DMSO)-quenched H/D-exchange method and its applications in protein science. In this method, the H/D-exchange buffer is replaced by an aprotic DMSO solution, which quenches the exchange reaction. We have improved the DMSO-quenched method by using spin desalting columns, which are used for medium exchange from the H/D-exchange buffer to the DMSO solution. This improvement has allowed us to monitor the H/D exchange of proteins at a high concentration of salts or denaturants. We describe methodological details of the improved DMSO-quenched method and present a case study using the improved method on the H/D-exchange behavior of unfolded human ubiquitin in 6 M guanidinium chloride.
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Affiliation(s)
- Kunihiro Kuwajima
- Department of Physics, School of Science, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
- Correspondence: (K.K.); (K.K.)
| | - Maho Yagi-Utsumi
- Exploratory Research Center on Life and Living Systems and Institute for Molecular Science, National Institutes of Natural Sciences, 5-1 Higashiyama, Myodaiji, Okazaki 444-8787, Aichi, Japan; (M.Y.-U.); (S.Y.)
- Department of Functional Molecular Science, School of Physical Sciences, SOKENDAI (the Graduate University for Advanced Studies), 5-1 Higashiyama, Myodaiji, Okazaki 444-8787, Aichi, Japan
- Graduate School of Pharmaceutical Sciences, Nagoya City University, 3-1 Tanabe-dori, Mizuho-ku, Nagoya 467-8603, Aichi, Japan
| | - Saeko Yanaka
- Exploratory Research Center on Life and Living Systems and Institute for Molecular Science, National Institutes of Natural Sciences, 5-1 Higashiyama, Myodaiji, Okazaki 444-8787, Aichi, Japan; (M.Y.-U.); (S.Y.)
- Department of Functional Molecular Science, School of Physical Sciences, SOKENDAI (the Graduate University for Advanced Studies), 5-1 Higashiyama, Myodaiji, Okazaki 444-8787, Aichi, Japan
| | - Koichi Kato
- Exploratory Research Center on Life and Living Systems and Institute for Molecular Science, National Institutes of Natural Sciences, 5-1 Higashiyama, Myodaiji, Okazaki 444-8787, Aichi, Japan; (M.Y.-U.); (S.Y.)
- Department of Functional Molecular Science, School of Physical Sciences, SOKENDAI (the Graduate University for Advanced Studies), 5-1 Higashiyama, Myodaiji, Okazaki 444-8787, Aichi, Japan
- Graduate School of Pharmaceutical Sciences, Nagoya City University, 3-1 Tanabe-dori, Mizuho-ku, Nagoya 467-8603, Aichi, Japan
- Correspondence: (K.K.); (K.K.)
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IAPP in type II diabetes: Basic research on structure, molecular interactions, and disease mechanisms suggests potential intervention strategies. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2018. [DOI: 10.1016/j.bbamem.2018.02.020] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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Chang YS, Wu YH, Wang CJ, Tang SH, Chen HL. Higher levels of thyroxine may predict a favorable response to donepezil treatment in patients with Alzheimer disease: a prospective, case-control study. BMC Neurosci 2018; 19:36. [PMID: 29929471 PMCID: PMC6013955 DOI: 10.1186/s12868-018-0436-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2018] [Accepted: 06/18/2018] [Indexed: 11/10/2022] Open
Abstract
Background Cholinergic hypothesis has been advanced as an etiology of Alzheimer disease (AD) on the basis of the presynaptic deficit found in the diseased brains, and cholinesterase inhibitors (ChEIs) are the treatment of choice for these patients. However, only about half of treatment efficacy was found. Because increasing evidence supports an extensive interrelationship between thyroid hormones (THs), cortisol level and the cholinergic system, the aim of the present study was to evaluate thyroid function and cortisol level in patients with mild to moderate AD before and after ChEIs treatment, and to identify possible variations in response. This was a prospective, case–control, follow-up study. Levels of cortisol and THs were evaluated in 21 outpatients with mild to moderate AD and 20 normal controls. All patients were treated with 5 mg/day of donepezil (DPZ) and were reevaluated after 24–26 weeks of treatment.
Results The patients had worse cognitive function, higher cortisol level, and lower levels of triiodothyronine (T3) and its free fraction than the controls. There were no significant differences in global cognitive function or cortisol level after treatment, however, significant reductions in T3 and thyroxin (T4) levels were observed. Responders had higher levels of T4 than non-responders, followed by a significant reduction after treatment.
Conclusions These results suggest that relatively higher levels of T4 may predict a favorable response to DPZ treatment. Further studies are warranted to confirm the relationship between THs and ChEIs therapy in AD and to explore new therapeutic strategies. On the other hand, cortisol levels are more likely to respond to interventions for stress-related neuropsychiatric symptoms in patients with AD rather than ChEIs treatment. Further studies are warranted to investigate the association between cortisol level and the severity of stress-related neuropsychiatric symptoms in patients with AD.
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Affiliation(s)
- Yu San Chang
- Kaohsiung Municipal Kai-Syuan Psychiatric Hospital, No. 130, Kai-Syuan, 2nd Road, Ling-Ya District, Kaohsiung, 802, Taiwan. .,Faculty of Nursing Department, Meiho University, No. 23, Pingguang Road, Neipu, Pingtung, Taiwan.
| | - Yu Hsuan Wu
- Kaohsiung Municipal Kai-Syuan Psychiatric Hospital, No. 130, Kai-Syuan, 2nd Road, Ling-Ya District, Kaohsiung, 802, Taiwan
| | - Chin Jen Wang
- Kaohsiung Municipal Kai-Syuan Psychiatric Hospital, No. 130, Kai-Syuan, 2nd Road, Ling-Ya District, Kaohsiung, 802, Taiwan
| | - Shu Hui Tang
- Kaohsiung Municipal Kai-Syuan Psychiatric Hospital, No. 130, Kai-Syuan, 2nd Road, Ling-Ya District, Kaohsiung, 802, Taiwan
| | - Hsiang Lan Chen
- Kaohsiung Municipal Kai-Syuan Psychiatric Hospital, No. 130, Kai-Syuan, 2nd Road, Ling-Ya District, Kaohsiung, 802, Taiwan
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Majdi S, Najafinobar N, Dunevall J, Lovric J, Ewing AG. DMSO Chemically Alters Cell Membranes to Slow Exocytosis and Increase the Fraction of Partial Transmitter Released. Chembiochem 2017; 18:1898-1902. [PMID: 28834067 DOI: 10.1002/cbic.201700410] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2017] [Indexed: 01/08/2023]
Abstract
Dimethyl sulfoxide (DMSO) is frequently used as a solvent in biological studies and as a vehicle for drug therapy; but the side effects of DMSO, especially on the cell environment, are not well understood, and controls with DMSO are not neutral at higher concentrations. Herein, electrochemical measurement techniques are applied to show that DMSO increases exocytotic neurotransmitter release, while leaving vesicular contents unchanged. In addition, the kinetics of release from DMSO-treated cells are faster than that of untreated ones. The results suggest that DMSO has a significant influence on the chemistry of the cell membrane, leading to alteration of exocytosis. A speculative chemical mechanism of the effect on the fusion pore during exocytosis is presented.
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Affiliation(s)
- Soodabeh Majdi
- Department of Chemistry and Molecular Biology, University of Gothenburg, Kemivägen 10, 41296, Gothenburg, Sweden
| | - Neda Najafinobar
- Department of Chemistry and Chemical Engineering, Chalmers University of Technology, Kemivägen 10, 41296, Gothenburg, Sweden
| | - Johan Dunevall
- Department of Chemistry and Chemical Engineering, Chalmers University of Technology, Kemivägen 10, 41296, Gothenburg, Sweden
| | - Jelena Lovric
- Department of Chemistry and Chemical Engineering, Chalmers University of Technology, Kemivägen 10, 41296, Gothenburg, Sweden
| | - Andrew G Ewing
- Department of Chemistry and Molecular Biology, University of Gothenburg, Kemivägen 10, 41296, Gothenburg, Sweden.,Department of Chemistry and Chemical Engineering, Chalmers University of Technology, Kemivägen 10, 41296, Gothenburg, Sweden
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Díaz Rodríguez R, Van Hoeck B, De Gelas S, Blancke F, Ngakam R, Bogaerts K, Jashari R. Determination of residual dimethylsulfoxide in cryopreserved cardiovascular allografts. Cell Tissue Bank 2017; 18:263-270. [DOI: 10.1007/s10561-016-9607-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2016] [Accepted: 12/15/2016] [Indexed: 10/20/2022]
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Sadowska-Bartosz I, Pączka A, Mołoń M, Bartosz G. Dimethyl sulfoxide induces oxidative stress in the yeast Saccharomyces cerevisiae. FEMS Yeast Res 2013; 13:820-30. [PMID: 24028688 DOI: 10.1111/1567-1364.12091] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2013] [Revised: 07/30/2013] [Accepted: 09/03/2013] [Indexed: 11/29/2022] Open
Abstract
Dimethyl sulfoxide (DMSO) is used as a cryoprotectant for the preservation of cells, including yeast, and as a solvent for chemical compounds. We report that DMSO induces oxidative stress in the yeast. Saccharomyces cerevisiae wt strain EG-103 and its mutants Δsod1, Δsod2, and Δsod1 Δsod2 were used. Yeast were subjected to the action of 1-14% DMSO for 1 h at 28 °C. DMSO induced a concentration-dependent inhibition of yeast growth, the effect being more pronounced for mutants devoid of SOD (especially Δsod1 Δsod2). Cell viability was compromised. DMSO-concentration-dependent activity loss of succinate dehydrogenase, a FeS enzyme sensitive to oxidative stress, was observed. DMSO enhanced formation of reactive oxygen species, estimated with dihydroethidine in a concentration-dependent manner, the effect being again more pronounced in mutants devoid of superoxide dismutases. The content of cellular glutathione was increased with increasing DMSO concentrations, which may represent a compensatory response. Membrane fluidity, estimated by fluorescence polarization of DPH, was decreased by DMSO. These results demonstrate that DMSO, although generally considered to be antioxidant, induces oxidative stress in yeast cells.
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Dujovny M, Ding YH, Ding Y, Agner C, Perez-Arjona E. Current concepts on the expression of neurotrophins in the greater omentum. Neurol Res 2013; 26:226-9. [PMID: 15072643 DOI: 10.1179/016164104225013879] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Abstract
The omentum has been utilized in Neurosurgery since the late 1960s. Its overwhelming effects on fibroblast and peripheral nerve growths were soon noticed. However, there was no direct evidence of production of any of the growth factors by the omentum, although substances were shown to be present in the omentum. Three animals were used in the study. After removal of the omentum in one, the tissue was submitted to PCR for BDNF, NT3/4 and NT5. Water was the negative control utilized. There was marked expression of all neurotrophins in the omentum, indicating local production of all those substances. The omentum has, for the first time, demonstrated to produce and not only accumulate neurotrophins. Utilization of this concept may permit transplant or transposition of parts of the omentum into the central nervous system for the management of multiple diseases, including vascular dementia, strokes, Alzheimer's disease or Moya-Moya disease.
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Affiliation(s)
- Manuel Dujovny
- Department of Neurosurgery, Wayne State University, Detroit, MI, USA.
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Julien C, Marcouiller F, Bretteville A, El Khoury NB, Baillargeon J, Hébert SS, Planel E. Dimethyl sulfoxide induces both direct and indirect tau hyperphosphorylation. PLoS One 2012; 7:e40020. [PMID: 22768202 PMCID: PMC3386937 DOI: 10.1371/journal.pone.0040020] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2012] [Accepted: 05/30/2012] [Indexed: 01/14/2023] Open
Abstract
Dimethyl sulfoxide (DMSO) is widely used as a solvent or vehicle for biological studies, and for treatment of specific disorders, including traumatic brain injury and several forms of amyloidosis. As Alzheimer’s disease (AD) brains are characterized by deposits of β-amyloid peptides, it has been suggested that DMSO could be used as a treatment for this devastating disease. AD brains are also characterized by aggregates of hyperphosphorylated tau protein, but the effect of DMSO on tau phosphorylation is unknown. We thus investigated the impact of DMSO on tau phosphorylation in vitro and in vivo. One hour following intraperitoneal administration of 1 or 2 ml/kg DMSO in mice, no change was observed in tau phosphorylation. However, at 4 ml/kg, tau was hyperphosphorylated at AT8 (Ser202/Thr205), PHF-1 (Ser396/Ser404) and AT180 (Thr231) epitopes. At this dose, we also noticed that the animals were hypothermic. When the mice were maintained normothermic, the effect of 4 ml/kg DMSO on tau hyperphosphorylation was prevented. On the other hand, in SH-SY5Y cells, 0.1% DMSO induced tau hyperphosphorylation at AT8 and AT180 phosphoepitopes in normothermic conditions. Globally, these findings demonstrate that DMSO can induce tau hyperphosphorylation indirectly via hypothermia in vivo, and directly in vitro. These data should caution researchers working with DMSO as it can induce artifactual results both in vivo and in vitro.
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Affiliation(s)
- Carl Julien
- Département de Neurosciences et Psychiatrie, Faculté de Médecine, Université Laval, Québec, Québec, Canada
- Axe Neurosciences, Centre de Recherche du Centre Hospitalier Universitaire de Québec, Québec, Québec, Canada
- * E-mail: (CJ); (EP)
| | - François Marcouiller
- Département de Neurosciences et Psychiatrie, Faculté de Médecine, Université Laval, Québec, Québec, Canada
- Axe Neurosciences, Centre de Recherche du Centre Hospitalier Universitaire de Québec, Québec, Québec, Canada
| | - Alexis Bretteville
- Département de Neurosciences et Psychiatrie, Faculté de Médecine, Université Laval, Québec, Québec, Canada
- Axe Neurosciences, Centre de Recherche du Centre Hospitalier Universitaire de Québec, Québec, Québec, Canada
| | - Noura B. El Khoury
- Département de Neurosciences et Psychiatrie, Faculté de Médecine, Université Laval, Québec, Québec, Canada
- Axe Neurosciences, Centre de Recherche du Centre Hospitalier Universitaire de Québec, Québec, Québec, Canada
| | - Joanie Baillargeon
- Département de Neurosciences et Psychiatrie, Faculté de Médecine, Université Laval, Québec, Québec, Canada
- Axe Neurosciences, Centre de Recherche du Centre Hospitalier Universitaire de Québec, Québec, Québec, Canada
| | - Sébastien S. Hébert
- Département de Neurosciences et Psychiatrie, Faculté de Médecine, Université Laval, Québec, Québec, Canada
- Axe Neurosciences, Centre de Recherche du Centre Hospitalier Universitaire de Québec, Québec, Québec, Canada
| | - Emmanuel Planel
- Département de Neurosciences et Psychiatrie, Faculté de Médecine, Université Laval, Québec, Québec, Canada
- Axe Neurosciences, Centre de Recherche du Centre Hospitalier Universitaire de Québec, Québec, Québec, Canada
- * E-mail: (CJ); (EP)
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Yao M, Li Y, Hossu M, Joly AG, Liu Z, Liu Z, Chen W. Luminescence of Lanthanide–Dimethyl Sulfoxide Compound Solutions. J Phys Chem B 2011; 115:9352-9. [DOI: 10.1021/jp202350p] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Mingzhen Yao
- Department of Physics, The University of Texas at Arlington, Arlington, Texas 76019-0059, United States
| | - Yuebin Li
- Department of Physics, The University of Texas at Arlington, Arlington, Texas 76019-0059, United States
- School of Physics, Huazhong University of Science and Technology, Wuhan, People's Republic of China 430074
| | - Marius Hossu
- Department of Physics, The University of Texas at Arlington, Arlington, Texas 76019-0059, United States
| | - Alan G. Joly
- Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Zhongxin Liu
- Department of Physics, The University of Texas at Arlington, Arlington, Texas 76019-0059, United States
- Department of Material and Chemical Engineering, Hainan University, Haikou, People's Republic of China 570228
| | - Zuli Liu
- School of Physics, Huazhong University of Science and Technology, Wuhan, People's Republic of China 430074
| | - Wei Chen
- Department of Physics, The University of Texas at Arlington, Arlington, Texas 76019-0059, United States
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Yao M, Chen W. Hypersensitive luminescence of Eu3+ in dimethyl sulfoxide as a new probing for water measurement. Anal Chem 2011; 83:1879-82. [PMID: 21319747 DOI: 10.1021/ac200072s] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Dimethyl sulfoxide (DMSO) is a well-known organic solvent that can be used for biological applications. DMSO is miscible with water, and it is very common that the two solvents are mixed for some applications. It is important to detect water in DMSO, and this has been done using the luminescence decay lifetimes from Eu(3+) ions. We observed that the emissions of Eu(3+) in DMSO are very strong and very sensitive to water. The emission band from the (5)D(0) → (7)F(2) transition has two peaks at 613 and 617 nm, respectively, and these two peaks change in the opposite ways when water is added into DMSO. The intensity ratio of the two peaks follows nearly perfect linear dependence on the water concentration added in DMSO. This linear relationship provides a new and convenient method for water measurement in DMSO.
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Jia Z, Zhu H, Li Y, Misra HP. Potent inhibition of peroxynitrite-induced DNA strand breakage and hydroxyl radical formation by dimethyl sulfoxide at very low concentrations. Exp Biol Med (Maywood) 2010; 235:614-22. [PMID: 20463302 DOI: 10.1258/ebm.2010.009368] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
Dimethyl sulfoxide (DMSO) is frequently used as a solvent for many water-insoluble drugs in biological studies at concentrations often up to 1%. However, little is known about its effects on oxidatively generated DNA damage at very low concentrations (0.005-0.5%). This study was undertaken to investigate the effects of DMSO on peroxynitrite-induced DNA strand breaks, a critical event leading to peroxynitrite-elicited cytotoxicity. Incubation of varphiX-174 plasmid DNA, with 3-morpholinosydnonimine (SIN-1), a peroxynitrite generator, led to the formation of DNA strand breaks in a concentration- and time-dependent manner. The presence of DMSO at concentrations of 0.005-0.5% was found to significantly inhibit SIN-1-induced DNA strand breaks in a concentration-dependent manner. However, DMSO at the above concentrations showed no affect on SIN-1-mediated oxygen consumption, indicating that DMSO did not affect the auto-oxidation of SIN-1 to form peroxynitrite. It is observed that incubation of the plasmid DNA with authentic peroxynitrite resulted in significant formation of DNA strand breaks, which could also be dramatically inhibited by the presence of DMSO at 0.005-0.5%. Electron paramagnetic resonance spectroscopy, using 5,5-dimethylpyrroline-N-oxide (DMPO) as a spin trap demonstrated the formation of DMPO-hydroxyl radical adduct from the SIN-1 and authentic peroxynitrite. DMSO at the concentrations ranging from 0.01% to 0.5% significantly inhibited the adduct signal. Taken together, these studies demonstrate, for the first time, that DMSO at extremely low concentrations (0.005-0.5%) can potently inhibit peroxynitrite-mediated DNA strand breakage and hydroxyl radical formation. The results of this study suggest that, where DMSO is applied as a solvent, caution should be observed when evaluating the actions of drugs in experiments involving DNA damage.
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Affiliation(s)
- Zhenquan Jia
- Division of Biomedical Sciences, Edward Via Virginia College of Osteopathic Medicine, Virginia Tech Corporate Research Center, 2265 Kraft Drive, Blacksburg, VA 24060, USA.
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Jacob SW, de la Torre JC. Pharmacology of dimethyl sulfoxide in cardiac and CNS damage. Pharmacol Rep 2009; 61:225-35. [PMID: 19443933 DOI: 10.1016/s1734-1140(09)70026-x] [Citation(s) in RCA: 67] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2008] [Revised: 02/20/2009] [Indexed: 10/25/2022]
Abstract
The pharmacological effects of dimethyl sulfoxide (DMSO) administration include some desirable properties that may be useful in the treatment of medical disorders resulting in tissue injury and compromised organ systems. These properties include the reported effects of DMSO on impaired blood flow, suppression of cytotoxicity from excess glutamate release that may result in lethal NMDA-AMPA activation, restriction of cytotoxic Na(+) and Ca(2+) entry into damaged cells, blocking tissue factor (TF) from contributing to thrombosis, reduction of intracranial pressure, tissue edema, and inflammatory reactions, and inhibition of vascular smooth muscle cell migration and proliferation that can lead to atherosclerosis of the coronary, peripheral, and cerebral circulation. A review of the basic and clinical literature on the biological actions of DMSO in cardiac and central nervous system (CNS) damage or dysfunction indicates that this agent, alone or in combination with other synergistic molecules, has been reported to neutralize or attenuate pathological complications that harmed or can further harm these two organ systems. The effects of DMSO make it potentially useful in the treatment of medical disorders involving head and spinal cord injury, stroke, memory dysfunction, and ischemic heart disease.
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Affiliation(s)
- Stanley W Jacob
- Department of Surgery, Oregon Health & Science University, Portland, OR 97201, USA
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15
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Cavas M, Beltrán D, Navarro JF. Behavioural effects of dimethyl sulfoxide (DMSO): changes in sleep architecture in rats. Toxicol Lett 2005; 157:221-32. [PMID: 15917147 DOI: 10.1016/j.toxlet.2005.02.003] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2004] [Revised: 02/16/2005] [Accepted: 02/17/2005] [Indexed: 12/22/2022]
Abstract
Dimethyl sulfoxide (DMSO) is an efficient solvent for water-insoluble compounds, widely used in biological studies and as a vehicle for drug therapy, but few data on its neurotoxic or behavioural effects is available. The aim of this work is to explore DMSO's effects upon sleep/wake states. Twenty male rats were sterotaxically prepared for polysomnography. Four concentrations of DMSO (5%, 10%, 15%, and 20%, in saline) were examined. DMSO or saline were administered intraperitoneally at the beginning of the light period. Three hours of polygraphic recording were evaluated for stages of vigilance after treatment. Sleep/wake parameters and EEG power spectral analyses during sleep were investigated. Results show no significant effect after 5% or 10% DMSO treatment. DMSO 15% increased mean episode duration of light slow wave sleep (SWS), decreasing mean episode duration of deep SWS and of quiet wake (QW). DMSO 20% increased light SWS enhancing number of episodes, while decreased deep SWS mean episode duration. EEG power spectra of sigma and delta activity were also affected by DMSO. Therefore, DMSO at 15% and 20% affects sleep architecture in rats, increasing light SWS and reducing deep SWS. Being aware of DMSO behavioural effects seems important since experimental artefacts caused by DMSO can lead to the erroneous interpretation of results.
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Affiliation(s)
- María Cavas
- Departamento de Psicobiología y Metodología de las Ciencias del Comportamiento, Facultad de Psicología, Universidad de Málaga, 29071 Málaga, Spain.
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16
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Shaked GM, Engelstein R, Avraham I, Kahana E, Gabizon R. Dimethyl sulfoxide delays PrP sc accumulation and disease symptoms in prion-infected hamsters. Brain Res 2003; 983:137-43. [PMID: 12914974 DOI: 10.1016/s0006-8993(03)03045-2] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
PrP(Sc), an aberrantly folded protein, is the only identified component of the prion, an agent causing fatal neurodegenerative diseases such as scrapie and bovine spongiform encephalopathy. Dimethyl sulfoxide (DMSO) has been shown to reduce the accumulation of PrP(Sc) in scrapie-infected (ScN2a) cells, and to inhibit its aggregation in vitro. In humans, DMSO was used successfully in the treatment of various peripheral amyloidotic diseases. Here we show that administration of DMSO to scrapie-infected hamsters significantly prolonged disease incubation time, as well as delayed the accumulation of PrP(Sc) in Syrian hamster brains. Interestingly, administration of DMSO to scrapie sick hamsters resulted in increased clearance of protease-resistant PrP in their urine. We conclude that although DMSO by itself may not be sufficient to cure prion diseases, it may be considered as a component in a 'cocktail' drug approach for these disorders. Also, urine PrP testing should be considered for the assessment of treatment efficacy.
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Affiliation(s)
- Gideon M Shaked
- Department of Neurology, The Agnes Ginges Center for Human Neurogenetics, Hadassah University Hospital, 91120, Jerusalem, Israel
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17
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Percy ME, Potyomkina Z, Dalton AJ, Fedor B, Mehta P, Andrews DF, Mazzulli T, Murk L, Warren AC, Wallace RA, Chau H, Jeng W, Moalem S, O'Brien L, Schellenberger S, Tran H, Wu L. Relation between apolipoprotein E genotype, hepatitis B virus status, and thyroid status in a sample of older persons with Down syndrome. Am J Med Genet A 2003; 120A:191-8. [PMID: 12833399 DOI: 10.1002/ajmg.a.20099] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Dementia of the Alzheimer type (DAT) is common in older persons with Down syndrome (DS). There are three common alleles of the apolipoprotein E (ApoE) gene (Sigma 2, Sigma 3, and Sigma 4) resulting in three different isoforms (E2, E3, and E4) and six different genotypes (2,2; 2,3; 2,4; 3,3; 3,4; and 4,4). Sigma 4 is a risk factor for DAT whereas Sigma 2 appears prophylactic. As hepatitis B virus (HBV) infection and hypothyroidism also are common in DS, we evaluated associations between ApoE type, HBV status, and thyroid status in a sample of older persons with DS (n = 55; mean age, 44.3 +/- 10.8 years) using chi-squared analysis. Participants were classified as E2 (2,2 or 2,3), E3 (3,3), or E4 (3,4 or 4,4); positive for markers of HBV infection in the present or past (i.e., total HBcAb+ and/or HBsAg+ with or without infectivity, defined as HBV+) or negative for markers of HBV infection (defined as HBV-) and, currently receiving thyroid hormone supplement (defined as "hypothyroidism") or having normal thyroid function. The majority of the HBV+ were currently HBcAb+ and HBsAb+, but not HBsAg+. In females, there was an ApoE allele effect on thyroid status (P < or = 0.01), E2 being negatively (P < or = 0.01) and E4 being positively (P < or = 0.05) associated with "hypothyroidism". There was no evidence for an ApoE allele effect on thyroid status in males. There was no evidence for an ApoE allele effect on HBV status, or for an HBV status effect on thyroid status. As thyroid status can affect cognitive function, ApoE allele effects in DAT may, in part, be thyroid effects.
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Affiliation(s)
- Maire E Percy
- Department of Physiology, University of Toronto, Toronto, Ontario, Canada.
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18
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Santos NC, Figueira-Coelho J, Martins-Silva J, Saldanha C. Multidisciplinary utilization of dimethyl sulfoxide: pharmacological, cellular, and molecular aspects. Biochem Pharmacol 2003; 65:1035-41. [PMID: 12663039 DOI: 10.1016/s0006-2952(03)00002-9] [Citation(s) in RCA: 425] [Impact Index Per Article: 20.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
DMSO is an amphipathic molecule with a highly polar domain and two apolar methyl groups, making it soluble in both aqueous and organic media. It is one of the most common solvents for the in vivo administration of several water-insoluble substances. Despite being frequently used as a solvent in biological studies and as a vehicle for drug therapy, the side-effects of DMSO (undesirable for these purposes) are apparent from its utilization in the laboratory (both in vivo and in vitro) and in clinical settings. DMSO is a hydrogen-bound disrupter, cell-differentiating agent, hydroxyl radical scavenger, intercellular electrical uncoupler, intracellular low-density lipoprotein-derived cholesterol mobilizing agent, cryoprotectant, solubilizing agent used in sample preparation for electron microscopy, antidote to the extravasation of vesicant anticancer agents, and topical analgesic. Additionally, it is used in the treatment of brain edema, amyloidosis, interstitial cystitis, and schizophrenia. Several systemic side-effects from the use of DMSO have been reported, namely nausea, vomiting, diarrhea, hemolysis, rashes, renal failure, hypertension, bradycardia, heart block, pulmonary edema, cardiac arrest, and bronchospasm. Looking at the multitude of effects of DMSO brought to light by these studies, it is easily understood how many researchers working with DMSO (or studying one of its specific effects) might not be fully aware of the experiences of other groups who are working with it but in a different context.
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Affiliation(s)
- Nuno C Santos
- Instituto de Bioquímica/Instituto de Medicina Molecular, Faculdade de Medicina de Lisboa, Av. Prof. Egas Moniz, P-1649-028 Lisbon, Portugal.
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19
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Santos NC, Figueira-Coelho J, Saldanha C, Martins-Silva J. Biochemical, biophysical and haemorheological effects of dimethylsulphoxide on human erythrocyte calcium loading. Cell Calcium 2002; 31:183-8. [PMID: 12027383 DOI: 10.1054/ceca.2002.0271] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The studies using dimethylsulphoxide (DMSO) and/or the 4-bromo-calcium ionophore A23187 (Br-A23187) often neglect the precise knowledge of some of their biochemical, biophysical and haemorheological effects. The aim of the present study was to evaluate these effects on erythrocytes after whole blood incubations with DMSO or Br-A23187 dissolved in DMSO. There were no significant differences between the different aliquots in the values of P(50), pH, erythrocyte deformability, erythrocyte membrane fluidity, haemoglobin and intracellular Ca(2+) concentrations ([Ca(2+)](i)). Aliquots with DMSO (independently of the presence of Br-A23187 or added Ca(2+)) had lower erythrocyte aggregation indexes and higher plasma concentrations of K(+)], Na(+)] and Ca(2+) than the aliquots without DMSO (independently of the presence of added Ca(2+)). Aliquots with added calcium (without the presence of Br-A23187 in DMSO) had a significantly higher erythrocyte acetylcholinesterase activity. Our data shows that calcium loading, the usual objective of Br-A23187 incubations, cannot be fulfilled with the studied experimental conditions. The coherence between our results and those obtained by other authors with different biological systems and different modulators of the rise on [Ca(2+)](i) suggests a non-specific effect of DMSO, disabling the action of the modulator. It can be reasoned that the decreased erythrocyte aggregation (without significant changes on the deformability or membrane fluidity) can result either from the decrease of the hydrogen bonding contribution to erythrocyte aggregation or the increased ionic strength influence on the erythrocyte membrane surface.
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Affiliation(s)
- N C Santos
- Instituto de Bioquímica/Instituto de Medicina Molecular, Faculdade de Medicina de Lisboa, Portugal.
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20
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Lackey BR, Gray SL, Henricks DM. Actions and interactions of the IGF system in Alzheimer's disease: review and hypotheses. Growth Horm IGF Res 2000; 10:1-13. [PMID: 10753587 DOI: 10.1054/ghir.1999.0129] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Insulin-like growth factors (IGF) are pleiotrophic polypeptides affecting all aspects of growth and development. The IGF system, including ligands, receptors, binding proteins and proteases is also involved in pathophysiological conditions, such as cancer and degenerative conditions. In this review, the actions and interactions of the IGF system as it relates to Alzheimer's disease will be investigated.
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Affiliation(s)
- B R Lackey
- Endocrine Physiology Laboratory, Department of Animal and Veterinary Sciences, Clemson University, Clemson, SC 29634, USA.
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21
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Yu ZW, Quinn PJ. The modulation of membrane structure and stability by dimethyl sulphoxide (review). Mol Membr Biol 1998; 15:59-68. [PMID: 9724923 DOI: 10.3109/09687689809027519] [Citation(s) in RCA: 103] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Dimethyl sulphoxide is a widely used agent in cell biology. It is well known as a cryoprotectant, cell fusogen and a permeability enhancing agent. These applications depend, to a greater or lesser extent, on the effect of dimethyl sulphoxide on the stability and dynamics of biomembranes. The aim of this review is to examine progress of the research which has been directed towards studies of the interactions between dimethyl sulphoxide and membranes, particularly that with the lipid components of cell membranes, as seen in its effects on model membrane systems. Models are proposed to explain the mechanism whereby dimethyl sulphoxide may mediate its effects on biological functions by its effects on the stability and properties of the membrane lipid matrix.
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Affiliation(s)
- Z W Yu
- Division of Life Sciences, King's College London, UK
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