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Lin C, Li TC, Wang P, Xu Y, Li DS, Sliva A, Yang HY. In Situ Formed Robust Solid Electrolyte Interphase with Organic-Inorganic Hybrid Layer for Stable Zn Metal Anode. Small Methods 2024:e2400127. [PMID: 38623969 DOI: 10.1002/smtd.202400127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Revised: 04/06/2024] [Indexed: 04/17/2024]
Abstract
Stabilizing the Zn anode/electrolyte interface is critical for advancing aqueous zinc ion storage technologies. Addressing this challenge helps minimize parasitic reactions and controls the formation of Zn dendrites, which is fundamental to achieving highly reversible Zn electrochemistry. In this study, 2% by volume of dimethyl sulfoxide (DMSO) is introduced into the baseline zinc sulfate (ZS) electrolyte, which acts as an efficient regulator to form a robust solid-electrolyte interphase (SEI) on the Zn anode. This innovative approach enables uniform Zn deposition and does not substantially modify the Zn2+ solvation structure. The Zn||Zn symmetric cell exhibits an extended cycle life of nearly one calendar year (>8500 h) at a current density of 0.5 mA cm-2 and an areal capacity of 0.5 mAh cm-2. Impressive full cell performance can be achieved. Specifically, the Zn||VS2 full cell achieves an areal capacity of 1.7 mAh cm-2, with a superior negative-to-positive capacity ratio of 2.5, and an electrolyte-to-capacity ratio of 101.4 µL mAh-1, displaying remarkable stability over 1000 cycles under a high mass loading of 11.0 mg cm-2 without significant degradation. This innovative approach in electrolyte engineering provides a new perspective on in situ SEI design and furthers the understanding of Zn anode stabilization.
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Affiliation(s)
- Congjian Lin
- Pillar of Engineering Product Development, Singapore University of Technology and Design, 8 Somapah Road, Singapore, 487372, Singapore
| | - Tian Chen Li
- Pillar of Engineering Product Development, Singapore University of Technology and Design, 8 Somapah Road, Singapore, 487372, Singapore
| | - Pinji Wang
- Pillar of Engineering Product Development, Singapore University of Technology and Design, 8 Somapah Road, Singapore, 487372, Singapore
- School of Materials Science and Engineering, Hunan Provincial Key Laboratory of Electronic Packaging and Advanced Functional Materials, Central South University, Changsha, 410083, P. R. China
| | - Yongtai Xu
- Pillar of Engineering Product Development, Singapore University of Technology and Design, 8 Somapah Road, Singapore, 487372, Singapore
| | - Dong-Sheng Li
- College of Materials and Chemical Engineering, Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials, China Three Gorges University, Yichang, 443002, China
| | - Arlindo Sliva
- Pillar of Engineering Product Development, Singapore University of Technology and Design, 8 Somapah Road, Singapore, 487372, Singapore
| | - Hui Ying Yang
- Pillar of Engineering Product Development, Singapore University of Technology and Design, 8 Somapah Road, Singapore, 487372, Singapore
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Fu Y, Dong X, Ebin B. Resource Recovery of Spent Lithium-Ion Battery Cathode Materials by a Supercritical Carbon Dioxide System. Molecules 2024; 29:1638. [PMID: 38611917 PMCID: PMC11013235 DOI: 10.3390/molecules29071638] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2024] [Revised: 03/28/2024] [Accepted: 04/03/2024] [Indexed: 04/14/2024] Open
Abstract
The increasing global market size of high-energy storage devices due to the boom in electric vehicles and portable electronics has caused the battery industry to produce a lot of waste lithium-ion batteries. The liberation and de-agglomeration of cathode material are the necessary procedures to improve the recycling derived from spent lithium-ion batteries, as well as enabling the direct recycling pathway. In this study, the supercritical (SC) CO2 was innovatively adapted to enable the recycling of spent lithium-ion batteries (LIBs) based on facilitating the interaction with a binder and dimethyl sulfoxide (DMSO) co-solvent. The results show that the optimum experimental conditions to liberate the cathode particles are processing at a temperature of 70 °C and 80 bar pressure for a duration of 20 min. During the treatment, polyvinylidene fluoride (PVDF) was dissolved in the SC fluid system and collected in the dimethyl sulfoxide (DMSO), as detected by the Fourier Transform Infrared Spectrometer (FTIR). The liberation yield of the cathode from the current collector reaches 96.7% under optimal conditions and thus, the cathode particles are dispersed into smaller fragments. Afterwards, PVDF can be precipitated and reused. In addition, there is no hydrogen fluoride (HF) gas emission due to binder decomposition in the suggested process. The proposed SC-CO2 and co-solvent system effectively separate the PVDF from Li-ion battery electrodes. Thus, this approach is promising as an alternative pre-treatment method due to its efficiency, relatively low energy consumption, and environmental benign features.
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Affiliation(s)
- Yuanpeng Fu
- School of Mining Engineering, Taiyuan University of Technology, Taiyuan 030024, China;
- Key Laboratory of Coal Processing and Efficient Utilization, China University of Mining and Technology, Ministry of Education, Xuzhou 221116, China
- Department of Chemistry and Chemical Engineering, Nuclear Chemistry and Industrial Material Recycling, Chalmers University of Technology, 412 96 Gothenburg, Sweden
| | - Xianshu Dong
- School of Mining Engineering, Taiyuan University of Technology, Taiyuan 030024, China;
| | - Burçak Ebin
- Department of Chemistry and Chemical Engineering, Nuclear Chemistry and Industrial Material Recycling, Chalmers University of Technology, 412 96 Gothenburg, Sweden
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Cui H, Ma J, Liu Y, Wang C, Song Q. Dimethyl Sulfoxide: An Ideal Electrochemical Probe for Hydroxyl Radical Detection. ACS Sens 2024; 9:1508-1514. [PMID: 38387077 DOI: 10.1021/acssensors.3c02644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2024]
Abstract
In situ and real-time determination of hydroxyl radicals (•OH) in physiological and pathological processes is a great challenge due to their ultrashort lifetime. Herein, an electrochemical method was developed by using dimethyl sulfoxide (DMSO) as a trapping probe for rapid determination of •OH in aqueous solution. When DMSO reacted with •OH, an intermediate product methane sulfinic acid (MSIA) was formed, which can be electrochemically oxidized to methanesulfonic acid (MSA) on the glassy carbon electrode (GCE), resulting in a distinct voltammetric signal that is directly proportional to the concentration of •OH. Other commonly encountered reactive oxygen species (ROS), including hypochlorite anions (ClO-), superoxide anions (O2•-), sulfate radicals (SO4•-), and singlet oxygen (1O2), have showed no interference for •OH determination. Thus, an electrochemical method was developed for the determination of •OH, which exhibits a wide linear range (0.4-5120 μM) and a low limit detection of 0.13 μM (S/N = 3) and was successfully applied for the quantification of •OH in aqueous extracts of cigarette tar (ACT). Alternatively, the same reaction mechanism is also applicable for the determination of DMSO, in which a linear range of 40-320 μM and a detection limit 13.3 μM (S/N = 3) was achieved. The method was used for the evaluation of DMSO content in cell cryopreservation medium. This work demonstrated that DMSO can serve as an electrochemical probe and has valuable application potential in radical study, biological research, and environmental monitoring.
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Affiliation(s)
- Haining Cui
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical & Material Engineering Jiangnan University, Wuxi 214122, P. R. China
| | - Jinxin Ma
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical & Material Engineering Jiangnan University, Wuxi 214122, P. R. China
| | - Youyi Liu
- Wuxi School of Medicine, Jiangnan University, Wuxi 214122, P. R. China
| | - Chan Wang
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical & Material Engineering Jiangnan University, Wuxi 214122, P. R. China
| | - Qijun Song
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical & Material Engineering Jiangnan University, Wuxi 214122, P. R. China
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Höfel S, Zwicker F, Fix MK, Drescher M. Towards liquid EPR dosimetry using nitroxides in aqueous solution. Phys Med Biol 2024; 69:055026. [PMID: 38306975 DOI: 10.1088/1361-6560/ad25c4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Accepted: 02/01/2024] [Indexed: 02/04/2024]
Abstract
Objective. Water-equivalent dosimeters are desirable for dosimetry in radiotherapy. The present work investigates basic characteristics of novel aqueous detector materials and presents a signal loss approach for electron paramagnetic resonance (EPR) dosimetry.Approach. The proposed principle is based on the radiation dose dependent annihilation of EPR active nitroxides (NO·) in aqueous solutions. Stable nitroxide radicals (3-Maleimido-2,2,5,5-tetramethyl-1-pyrrolidinyloxy (MmP), 3-Carbamoyl-2,2,5,5-tetramethyl-1-pyrrolidinyloxy (CmP)) in aqueous solutions containing dimethyl sulfoxide (DMSO) as an additive were filled in glass capillaries for irradiation and EPR readout. Radiation doses ranging from 1 to 64 Gy were applied with a clinical 6 MV flattening filter free photon beam. EPR readout was then performed with a X-band benchtop spectrometer. The dose response, temporal stability and reproducibility of the samples' EPR signal amplitudes as well as the influence of the nitroxide concentration between 10 and 160μM on the absolute signal loss were investigated using MmP. CmP was used to examine the dependence of the dose response on DMSO concentration between 0 and 10 vol%. An indirect effect model was fitted to the experimental data assuming irradiation induced radical reactions as the underlying mechanism.Main results. For an initial MmP concentration of 20μM, absolute EPR signal loss is linear up to a dose of 16 Gy with a yield G(-NO·) of approximately 0.4μmol J-1. Within five weeks upon sample irradiation to doses between 0 and 32 Gy relative EPR signal fluctuations were on average (126 readouts) below 1% (1σ). For c(MmP) ≥ 20μM, absolute signal loss is only weakly dependent on c(MmP), whereas it increases strongly with increasing c(DMSO) in the range 0-5 vol%. An indirect effect model is applicable to describe the reaction mechanism resulting in the observed dose response curve.Significance. Liquids consisting of nitroxides in aqueous solution and small amounts of DMSO (2 vol%) show promising basic characteristics for application as water-equivalent EPR dosimeter materials in radiotherapy. The EPR signal loss is based on an indirect effect mediated by diffusing radicals originating from the radiolysis of the water/DMSO mixture.
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Affiliation(s)
- Sebastian Höfel
- Department of Chemistry and Konstanz Research School Chemical Biology, University of Konstanz, Konstanz, Germany
- Klinik und Praxis für Strahlentherapie am Klinikum Konstanz, Konstanz, Germany
| | - Felix Zwicker
- Klinik und Praxis für Strahlentherapie am Klinikum Konstanz, Konstanz, Germany
- Department of Radiation Oncology, Heidelberg University Hospital, Heidelberg, Germany
- Clinical Cooperation Unit Molecular Radiation Oncology, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Michael K Fix
- Division of Medical Radiation Physics and Department of Radiation Oncology, Inselspital, Bern University Hospital and University of Bern, Switzerland
| | - Malte Drescher
- Department of Chemistry and Konstanz Research School Chemical Biology, University of Konstanz, Konstanz, Germany
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Akiyama Y, Niimi A, Nomiya A, Taguchi S, Yamada Y, Sato Y, Kawai T, Yamada D, Kume H, Homma Y. Efficacy and safety of intravesical dimethyl sulfoxide treatment for patients with refractory Hunner-type interstitial cystitis: Real-world data postofficial approval in Japan. Int J Urol 2024; 31:111-118. [PMID: 37817647 DOI: 10.1111/iju.15320] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Accepted: 09/24/2023] [Indexed: 10/12/2023]
Abstract
OBJECTIVES To examine real-world data regarding intravesical dimethyl sulfoxide (DMSO) therapy after official approval as a treatment for Hunner-type interstitial cystitis (HIC) in Japan. METHODS This single institution, retrospective observational study was conducted between 2021 and 2022 to evaluate the outcomes of 30 patients with refractory HIC who received intravesical DMSO therapy according to the approved standardized regimen: administration of DMSO every 2 weeks for a total of 12 weeks. Treatment outcomes were evaluated using a 7-graded global response assessment scale, O'Leary and Sant's symptom and problem indices (OSSI/OSPI), the overactive bladder symptom score (OABSS), an 11-point pain intensity numerical rating scale, quality of life (QOL) score, and frequency volume chart variables. Related complications were also documented. RESULTS The response rates at 2, 4, 6, 8, 10, and 12 weeks were 36.7%, 43.3%, 53.3%, 60.0%, 70.0%, and 70.0%, respectively. Compared with baseline, OSSI/OSPI, pain intensity, urinary frequency, and the QOL score improved significantly from 4 weeks of treatment. The OABSS score and functional bladder capacity also showed a tendency toward moderate improvement, but the difference was not significant. The mean duration of symptom relapse after termination of treatment was 6.4 ± 3.9 months. No patients discontinued treatment due to adverse events, although acute bladder irritation during infusion was noted in 21 patients (70%), which disappeared within 3 days. CONCLUSIONS This study verifies the safety, moderately durable efficacy, and tolerability of the standard intravesical treatment with DMSO for HIC in Japan.
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Affiliation(s)
- Yoshiyuki Akiyama
- Department of Urology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Aya Niimi
- Department of Urology, New Tokyo Hospital, Matsudo, Chiba, Japan
| | - Akira Nomiya
- Department of Urology, Kanto Rosai Hospital, Kawasaki, Kanagawa, Japan
| | - Satoru Taguchi
- Department of Urology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Yuta Yamada
- Department of Urology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Yusuke Sato
- Department of Urology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Taketo Kawai
- Department of Urology, Teikyo University School of Medicine, Tokyo, Japan
| | - Daisuke Yamada
- Department of Urology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Haruki Kume
- Department of Urology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Yukio Homma
- Department of Urology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
- Department of Interstitial Cystitis Medicine, Kyorin University School of Medicine, Tokyo, Japan
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Liu L, Wang Z, Wang M, Zhao G. Quantitative Analysis of Ice Crystal Growth During Freezing of Dimethyl Sulfoxide Solutions Under Alternating Current Electric Fields. Biopreserv Biobank 2023. [PMID: 38011517 DOI: 10.1089/bio.2023.0035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2023] Open
Abstract
During cryopreservation, the growth of ice crystals can cause mechanical damage to samples, which is one of the important factors limiting the quality of preserved samples. To enhance the preservation quality of biological samples, scholars have tried various engineering methods. Among them, an electric field is an essential factor affecting solution freezing. Dimethyl sulfoxide, as a commonly used cryoprotectant, can cause mechanical damage to cells due to ice crystals even when freezing at the optimal freezing rate. Water is a strongly polar dielectric material, and the applied alternating current (AC) electric field will affect the water freezing performance. Therefore, a quantitative study of ice crystal nucleation and growth during freezing of dimethyl sulfoxide solutions under different AC electric field conditions is needed to try to reduce ice crystal damage. We created a liquid-film device to approximate the ice crystal growth process as a two-dimensional image. The frequency of the AC voltage was set from 0 to 50 kHz. We measured the supercooling of the dimethyl sulfoxide solution under AC electric field conditions. As an objective and accurate quantitative analysis of the ice crystal growth process, we propose a Dilated Convolutional Segmentation Transformer for semantic segmentation of ice crystal images. It is concluded that the average area and the growth rate of single ice crystals decrease with increasing electric field frequency at a certain concentration of dimethyl sulfoxide solution. Lower concentrations of dimethyl sulfoxide solution in combination with an AC electric field can achieve similar ice suppression effects as when higher concentrations of dimethyl sulfoxide solution act alone. We believe that AC electric fields are expected to be an aid to cryopreservation and provide some theoretical basis and experimental foundation for its development.
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Affiliation(s)
- Liting Liu
- Department of Electronic Engineering and Information Science, University of Science and Technology of China, Hefei, China
| | - Zirui Wang
- Department of Electronic Engineering and Information Science, University of Science and Technology of China, Hefei, China
| | - Menghan Wang
- Department of Electronic Engineering and Information Science, University of Science and Technology of China, Hefei, China
| | - Gang Zhao
- Department of Electronic Engineering and Information Science, University of Science and Technology of China, Hefei, China
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Puyathorn N, Tamdee P, Sirirak J, Okonogi S, Phaechamud T, Chantadee T. Computational Insight of Phase Transformation and Drug Release Behaviour of Doxycycline-Loaded Ibuprofen-Based In-Situ Forming Gel. Pharmaceutics 2023; 15:2315. [PMID: 37765285 PMCID: PMC10537905 DOI: 10.3390/pharmaceutics15092315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2023] [Revised: 09/07/2023] [Accepted: 09/11/2023] [Indexed: 09/29/2023] Open
Abstract
This research investigates the gel formation behaviour and drug-controlling performance of doxycycline-loaded ibuprofen-based in-situ forming gels (DH-loaded IBU-based ISGs) for potential applications in periodontal treatment. The investigation begins by exploring the physical properties and gel formation behaviour of the ISGs, with a particular focus on determining their sustained release capabilities. To gain a deeper understanding of the molecular interactions and dynamics within the ISGs, molecular dynamic (MD) simulations are employed. The effects of adding IBU and DH on reducing surface tension and water tolerance properties, thus affecting molecular properties. The phase transformation phenomenon is observed around the interface, where droplets of ISGs move out to the water phase, leading to the precipitation of IBU around the interface. The optimization of drug release profiles ensures sustained local drug release over seven days, with a burst release observed on the first day. Interestingly, different organic solvents show varying abilities to control DH release, with dimethyl sulfoxide (DMSO) demonstrating superior control compared to N-Methyl-2-pyrrolidone (NMP). MD simulations using AMBER20 software provide valuable insights into the movement of individual molecules, as evidenced by root-mean-square deviation (RMSD) values. The addition of IBU to the system results in the retardation of IBU molecule movement, particularly evident in the DMSO series, with the diffusion constant value of DH reducing from 1.2452 to 0.3372 and in the NMP series from 0.3703 to 0.2245 after adding IBU. The RMSD values indicate a reduction in molecule fluctuation of DH, especially in the DMSO system, where it decreases from over 140 to 40 Å. Moreover, their radius of gyration is influenced by IBU, with the DMSO system showing lower values, suggesting an increase in molecular compactness. Notably, the DH-IBU configuration exhibits stable pairing through H-bonding, with a higher amount of H-bonding observed in the DMSO system, which is correlated with the drug retardation efficacy. These significant findings pave the way for the development of phase transformation mechanistic studies and offer new avenues for future design and optimization formulation in the ISG drug delivery systems field.
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Affiliation(s)
- Napaphol Puyathorn
- Programme of Pharmaceutical Technology, Faculty of Pharmacy, Silpakorn University, Nakhon Pathom 73000, Thailand;
| | - Poomipat Tamdee
- Department of Chemistry, Faculty of Science, Silpakorn University, Nakhon Pathom 73000, Thailand
| | - Jitnapa Sirirak
- Department of Chemistry, Faculty of Science, Silpakorn University, Nakhon Pathom 73000, Thailand
- Natural Bioactive and Material for Health Promotion and Drug Delivery System Group (NBM Group), Faculty of Pharmacy, Silpakorn University, Nakhon Pathom 73000, Thailand
| | - Siriporn Okonogi
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Chiang Mai University, Chiang Mai 50200, Thailand
- Center of Excellence in Pharmaceutical Nanotechnology, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Thawatchai Phaechamud
- Programme of Pharmaceutical Technology, Faculty of Pharmacy, Silpakorn University, Nakhon Pathom 73000, Thailand;
- Natural Bioactive and Material for Health Promotion and Drug Delivery System Group (NBM Group), Faculty of Pharmacy, Silpakorn University, Nakhon Pathom 73000, Thailand
- Department of Industrial Pharmacy, Faculty of Pharmacy, Silpakorn University, Nakhon Pathom 73000, Thailand
| | - Takron Chantadee
- Natural Bioactive and Material for Health Promotion and Drug Delivery System Group (NBM Group), Faculty of Pharmacy, Silpakorn University, Nakhon Pathom 73000, Thailand
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Chiang Mai University, Chiang Mai 50200, Thailand
- Center of Excellence in Pharmaceutical Nanotechnology, Chiang Mai University, Chiang Mai 50200, Thailand
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Tran DT, Pham TN, Nguyen NH, Tran HD, Hoang HQ, Han BO, Hoang BX. A Prospective Study of AFree Oral Spray as an Adjuvant Therapy for Mild and Moderate COVID-19 in Community Health Stations: Clinical Progression and Viral Clearance Outcomes. In Vivo 2023; 37:2155-2160. [PMID: 37652493 PMCID: PMC10500509 DOI: 10.21873/invivo.13313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 06/03/2023] [Accepted: 06/06/2023] [Indexed: 09/02/2023]
Abstract
BACKGROUND/AIM The aim of this study was to evaluate the safety and efficacy of AFree oral spray, in combination with Standard of Care, in treating mild to moderate COVID-19 patients. This was an open-label, single-blinded, and controlled randomized clinical trial. PATIENTS AND METHODS The study involved 1,252 patients, who were randomly assigned to either the control or study group, with 626 patients in each group. Patients in the control group were treated with Standard of Care recommended by the Ministry of Health of Vietnam, while patients in the study group received AFree oral spray in addition to Standard of Care for a period of 10 days. The clinical progression and outcomes of both groups were compared. RESULTS The results showed that the proportion of patients with clinical symptoms on the 5th, 7th and 10th days were significantly lower in the study group (45.05%, 3.19% and 0%, respectively) compared to the control group (86.10%, 67.73% and 22.84%, respectively). Additionally, the rate of Real-time PCR test positivity for COVID-19 was significantly lower in the study group compared to the control group on the 4th, 7th, and 10th days (82.75% vs. 98.72%, 9.27% vs. 92.97%, and 1.12% vs. 50.48%, respectively). Furthermore, no side effects or complications related to AFree oral spray were recorded in the study group. CONCLUSION The use of AFree oral spray resulted in significant improvements in clinical symptoms, recovery time, and viral clearance in COVID-19 patients with mild to moderate symptoms. This therapy has been shown to be safe and can be used as an adjuvant treatment for COVID-19 as well as other respiratory viral infections.
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Affiliation(s)
- Duong T Tran
- 19-8 Hospital, Ministry of Public Security, Hanoi, Vietnam
- Faculty of Medicine, Dai Nam University, Hanoi, Vietnam
| | - Truong N Pham
- 19-8 Hospital, Ministry of Public Security, Hanoi, Vietnam
- Department of Experimental Surgery and Preclinical Study - University of Medicine and Pharmacy, Hanoi National University, Hanoi, Vietnam
| | - Nhung Ht Nguyen
- University of Medical Technology, Department of Clinical Laboratory, Hai Duong, Vietnam
| | - Hau D Tran
- National Children Hospital, Department of Oncology, Hanoi, Vietnam
| | - Huy Q Hoang
- Natural Health Medical Center, Lawndale, CA, U.S.A
| | - B O Han
- Nimni-Cordoba Tissue Engineering and Drug Discovery Lab, Department of Surgery, Keck School of Medicine of University of Southern California, Los Angeles, CA, U.S.A
| | - Ba X Hoang
- Nimni-Cordoba Tissue Engineering and Drug Discovery Lab, Department of Surgery, Keck School of Medicine of University of Southern California, Los Angeles, CA, U.S.A.
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Munesada D, Sakai D, Nakamura Y, Schol J, Matsushita E, Tamagawa S, Sako K, Ogasawara S, Sato M, Watanabe M. Investigation of the Mitigation of DMSO-Induced Cytotoxicity by Hyaluronic Acid following Cryopreservation of Human Nucleus Pulposus Cells. Int J Mol Sci 2023; 24:12289. [PMID: 37569664 PMCID: PMC10419032 DOI: 10.3390/ijms241512289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 07/26/2023] [Accepted: 07/30/2023] [Indexed: 08/13/2023] Open
Abstract
To develop an off-the-shelf therapeutic product for intervertebral disc (IVD) repair using nucleus pulposus cells (NPCs), it is beneficial to mitigate dimethyl sulfoxide (DMSO)-induced cytotoxicity caused by intracellular reactive oxygen species (ROS). Hyaluronic acid (HA) has been shown to protect chondrocytes against ROS. Therefore, we examined the potential of HA on mitigating DMSO-induced cytotoxicity for the enhancement of NPC therapy. Human NPC cryopreserved in DMSO solutions were thawed, mixed with equal amounts of EDTA-PBS (Group E) or HA (Group H), and incubated for 3-5 h. After incubation, DMSO was removed, and the cells were cultured for 5 days. Thereafter, we examined cell viability, cell proliferation rates, Tie2 positivity (a marker of NP progenitor cells), and the estimated numbers of Tie2 positive cells. Fluorescence intensity of DHE and MitoSOX staining, as indicators for oxidative stress, were evaluated by flow cytometry. Group H showed higher rates of cell proliferation and Tie2 expressing cells with a trend toward suppression of oxidative stress compared to Group E. Thus, HA treatment appears to suppress ROS induced by DMSO. These results highlight the ability of HA to maintain NPC functionalities, suggesting that mixing HA at the time of transplantation may be useful in the development of off-the-shelf NPC products.
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Affiliation(s)
- Daiki Munesada
- Department of Orthopedic Surgery, Tokai University School of Medicine, 143 Shimokasuya, Isehara 259-1193, Japan; (D.M.); (J.S.); (S.T.); (K.S.); (S.O.); (M.S.); (M.W.)
| | - Daisuke Sakai
- Department of Orthopedic Surgery, Tokai University School of Medicine, 143 Shimokasuya, Isehara 259-1193, Japan; (D.M.); (J.S.); (S.T.); (K.S.); (S.O.); (M.S.); (M.W.)
- Center for Musculoskeletal Innovative Research and Advancement (C-MiRA), Tokai University Graduate School, 143 Shimokasuya, Isehara 259-1193, Japan
| | - Yoshihiko Nakamura
- Research Center for Regenerative Medicine, Tokai University School of Medicine, 143 Shimokasuya, Isehara 259-1193, Japan; (Y.N.); (E.M.)
| | - Jordy Schol
- Department of Orthopedic Surgery, Tokai University School of Medicine, 143 Shimokasuya, Isehara 259-1193, Japan; (D.M.); (J.S.); (S.T.); (K.S.); (S.O.); (M.S.); (M.W.)
- Center for Musculoskeletal Innovative Research and Advancement (C-MiRA), Tokai University Graduate School, 143 Shimokasuya, Isehara 259-1193, Japan
- Research Center for Regenerative Medicine, Tokai University School of Medicine, 143 Shimokasuya, Isehara 259-1193, Japan; (Y.N.); (E.M.)
| | - Erika Matsushita
- Research Center for Regenerative Medicine, Tokai University School of Medicine, 143 Shimokasuya, Isehara 259-1193, Japan; (Y.N.); (E.M.)
| | - Shota Tamagawa
- Department of Orthopedic Surgery, Tokai University School of Medicine, 143 Shimokasuya, Isehara 259-1193, Japan; (D.M.); (J.S.); (S.T.); (K.S.); (S.O.); (M.S.); (M.W.)
- Department of Medicine for Orthopaedics and Motor Organ, Juntendo University Graduate School of Medicine, 3-1-3 Hongo, Bunkyo-ku 113-8431, Japan
| | - Kosuke Sako
- Department of Orthopedic Surgery, Tokai University School of Medicine, 143 Shimokasuya, Isehara 259-1193, Japan; (D.M.); (J.S.); (S.T.); (K.S.); (S.O.); (M.S.); (M.W.)
| | - Shota Ogasawara
- Department of Orthopedic Surgery, Tokai University School of Medicine, 143 Shimokasuya, Isehara 259-1193, Japan; (D.M.); (J.S.); (S.T.); (K.S.); (S.O.); (M.S.); (M.W.)
| | - Masato Sato
- Department of Orthopedic Surgery, Tokai University School of Medicine, 143 Shimokasuya, Isehara 259-1193, Japan; (D.M.); (J.S.); (S.T.); (K.S.); (S.O.); (M.S.); (M.W.)
- Center for Musculoskeletal Innovative Research and Advancement (C-MiRA), Tokai University Graduate School, 143 Shimokasuya, Isehara 259-1193, Japan
| | - Masahiko Watanabe
- Department of Orthopedic Surgery, Tokai University School of Medicine, 143 Shimokasuya, Isehara 259-1193, Japan; (D.M.); (J.S.); (S.T.); (K.S.); (S.O.); (M.S.); (M.W.)
- Center for Musculoskeletal Innovative Research and Advancement (C-MiRA), Tokai University Graduate School, 143 Shimokasuya, Isehara 259-1193, Japan
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10
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Zhou YJ, Fang YG, Yang K, Lin JY, Li HQ, Chen ZJ, Wang ZY. DBDMH-Promoted Methylthiolation in DMSO: A Metal-Free Protocol to Methyl Sulfur Compounds with Multifunctional Groups. Molecules 2023; 28:5635. [PMID: 37570605 PMCID: PMC10419854 DOI: 10.3390/molecules28155635] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Revised: 07/14/2023] [Accepted: 07/24/2023] [Indexed: 08/13/2023] Open
Abstract
Organic thioethers play an important role in the discovery of drugs and natural products. However, the green synthesis of organic sulfide compounds remains a challenging task. The convenient and efficient synthesis of 5-alkoxy-3-halo-4-methylthio-2(5H)-furanones from DMSO is performed via the mediation of 1,3-dibromo-5,5-dimethylhydantoin (DBDMH), affording a facile route for the sulfur-functionalization of 3,4-dihalo-2(5H)-furanones under transition metal-free conditions. This new approach has demonstrated the functionalization of non-aromatic Csp2-X-type halides with unique structures containing C-X, C-O, C=O and C=C bonds. Compared with traditional synthesis methods using transition metal catalysts with ligands, this reaction has many advantages, such as the lower temperature, the shorter reaction time, the wide substrate range and good functional group tolerance. Notably, DMSO plays multiple roles, and is simultaneously used as an odorless methylthiolating reagent and safe solvent.
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Affiliation(s)
- Yong-Jun Zhou
- School of Chemistry, South China Normal University, GDMPA Key Laboratory for Process Control and Quality Evaluation of Chiral Pharmaceuticals, Guangzhou Key Laboratory of Analytical Chemistry for Biomedicine, Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, Guangzhou 510006, China; (Y.-J.Z.); (Y.-G.F.); (J.-Y.L.); (H.-Q.L.); (Z.-J.C.)
| | - Yong-Gan Fang
- School of Chemistry, South China Normal University, GDMPA Key Laboratory for Process Control and Quality Evaluation of Chiral Pharmaceuticals, Guangzhou Key Laboratory of Analytical Chemistry for Biomedicine, Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, Guangzhou 510006, China; (Y.-J.Z.); (Y.-G.F.); (J.-Y.L.); (H.-Q.L.); (Z.-J.C.)
| | - Kai Yang
- School of Chemistry, South China Normal University, GDMPA Key Laboratory for Process Control and Quality Evaluation of Chiral Pharmaceuticals, Guangzhou Key Laboratory of Analytical Chemistry for Biomedicine, Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, Guangzhou 510006, China; (Y.-J.Z.); (Y.-G.F.); (J.-Y.L.); (H.-Q.L.); (Z.-J.C.)
- College of Pharmacy, Gannan Medical University, Ganzhou 341000, China
| | - Jian-Yun Lin
- School of Chemistry, South China Normal University, GDMPA Key Laboratory for Process Control and Quality Evaluation of Chiral Pharmaceuticals, Guangzhou Key Laboratory of Analytical Chemistry for Biomedicine, Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, Guangzhou 510006, China; (Y.-J.Z.); (Y.-G.F.); (J.-Y.L.); (H.-Q.L.); (Z.-J.C.)
- School of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou 510640, China
| | - Huan-Qing Li
- School of Chemistry, South China Normal University, GDMPA Key Laboratory for Process Control and Quality Evaluation of Chiral Pharmaceuticals, Guangzhou Key Laboratory of Analytical Chemistry for Biomedicine, Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, Guangzhou 510006, China; (Y.-J.Z.); (Y.-G.F.); (J.-Y.L.); (H.-Q.L.); (Z.-J.C.)
| | - Zu-Jia Chen
- School of Chemistry, South China Normal University, GDMPA Key Laboratory for Process Control and Quality Evaluation of Chiral Pharmaceuticals, Guangzhou Key Laboratory of Analytical Chemistry for Biomedicine, Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, Guangzhou 510006, China; (Y.-J.Z.); (Y.-G.F.); (J.-Y.L.); (H.-Q.L.); (Z.-J.C.)
| | - Zhao-Yang Wang
- School of Chemistry, South China Normal University, GDMPA Key Laboratory for Process Control and Quality Evaluation of Chiral Pharmaceuticals, Guangzhou Key Laboratory of Analytical Chemistry for Biomedicine, Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, Guangzhou 510006, China; (Y.-J.Z.); (Y.-G.F.); (J.-Y.L.); (H.-Q.L.); (Z.-J.C.)
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11
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Keppler F, Boros M, Polag D. Radical-Driven Methane Formation in Humans Evidenced by Exogenous Isotope-Labeled DMSO and Methionine. Antioxidants (Basel) 2023; 12:1381. [PMID: 37507920 PMCID: PMC10376501 DOI: 10.3390/antiox12071381] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Revised: 06/29/2023] [Accepted: 07/01/2023] [Indexed: 07/30/2023] Open
Abstract
Methane (CH4), which is produced endogenously in animals and plants, was recently suggested to play a role in cellular physiology, potentially influencing the signaling pathways and regulatory mechanisms involved in nitrosative and oxidative stress responses. In addition, it was proposed that the supplementation of CH4 to organisms may be beneficial for the treatment of several diseases, including ischemia, reperfusion injury, and inflammation. However, it is still unclear whether and how CH4 is produced in mammalian cells without the help of microorganisms, and how CH4 might be involved in physiological processes in humans. In this study, we produced the first evidence of the principle that CH4 is formed non-microbially in the human body by applying isotopically labeled methylated sulfur compounds, such as dimethyl sulfoxide (DMSO) and methionine, as carbon precursors to confirm cellular CH4 formation. A volunteer applied isotopically labeled (2H and 13C) DMSO on the skin, orally, and to blood samples. The monitoring of stable isotope values of CH4 convincingly showed the conversion of the methyl groups, as isotopically labeled CH4 was formed during all experiments. Based on these results, we considered several hypotheses about endogenously formed CH4 in humans, including physiological aspects and stress responses involving reactive oxygen species (ROS). While further and broader validation studies are needed, the results may unambiguously serve as a proof of concept for the endogenous formation of CH4 in humans via a radical-driven process. Furthermore, these results might encourage follow-up studies to decipher the potential physiological role of CH4 and its bioactivity in humans in more detail. Of particular importance is the potential to monitor CH4 as an oxidative stress biomarker if the observed large variability of CH4 in breath air is an indicator of physiological stress responses and immune reactions. Finally, the potential role of DMSO as a radical scavenger to counteract oxidative stress caused by ROS might be considered in the health sciences. DMSO has already been investigated for many years, but its potential positive role in medical use remains highly uncertain.
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Affiliation(s)
- Frank Keppler
- Institute of Earth Sciences, Heidelberg University, D-69120 Heidelberg, Germany
- Heidelberg Center for the Environment (HCE), Heidelberg University, D-69120 Heidelberg, Germany
| | - Mihály Boros
- Institute of Surgical Research, University of Szeged, H-6724 Szeged, Hungary
| | - Daniela Polag
- Institute of Earth Sciences, Heidelberg University, D-69120 Heidelberg, Germany
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12
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Tran DT, Pham TN, Nguyen NHT, Tran HD, Hoang HQ, Nguyen AK, Han BO, Hoang BX. Therapeutic Efficacy of AFree Oral Spray on the Symptoms and Course of Moderate and Severe COVID-19 in the Field Hospital. In Vivo 2023; 37:1743-1750. [PMID: 37369463 DOI: 10.21873/invivo.13262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 05/24/2023] [Accepted: 05/29/2023] [Indexed: 06/29/2023]
Abstract
BACKGROUND/AIM A prospective randomized, open-label, single-blinded clinical trial was conducted to evaluate the efficacy of AFree on the symptoms and course of moderate and severe COVID-19 in the field hospital. PATIENTS AND METHODS Two hundred hospitalized patients diagnosed with COVID-19 were enrolled. The patients were randomized into 100 patients in the interventional AFree group and 100 in the control group. The AFree group patients were treated with AFree oral spray in conjunction with the standard COVID-19 treatment protocol, while the control group of patients were treated with only standard care. RESULTS Patients of the AFree group demonstrated a remarkedly faster improvement in all COVID-19-related symptoms, resulting in a shorter time for complete recovery than the control group. More importantly, they showed a shorter time for complete viral clearance. Adding AFree to the standard of care protocol also significantly improved the restoration of taste and smell and reduced lung infiltration. Additionally, the patients in the AFree group also exhibited fewer adverse effects related to treatment. CONCLUSION AFree oral spray is a simple-to-use, safe, and effective adjunctive treatment for moderate and severe COVID-19 cases. AFree oral spray was demonstrated to potentially be effective for COVID-19 prevention.
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Affiliation(s)
- Duong T Tran
- 19-8 Hospital, Ministry of Public Security, Hanoi, Vietnam
- Faculty of Medicine, Dai Nam University, Hanoi, Vietnam
| | - Truong N Pham
- 19-8 Hospital, Ministry of Public Security, Hanoi, Vietnam
- Department of Experimental Surgery and Preclinical Study - University of Medicine and Pharmacy, Hanoi National University, Hanoi, Vietnam
| | - Nhung H T Nguyen
- Department of Clinical Laboratory, University of Medical Technology, Hai Duong, Vietnam
| | - Hau D Tran
- Department of Oncology, National Children Hospital, Hanoi, Vietnam
| | - Huy Q Hoang
- Natural Health Medical Center, Lawndale, CA, U.S.A
| | - Anh K Nguyen
- Inventive Medical Foundation, South El Monte, CA, U.S.A
| | - B O Han
- Nimni-Cordoba Tissue Engineering and Drug Discovery Lab, Department of Surgery, Keck School of Medicine of University of Southern California, Los Angeles, CA, U.S.A
| | - Ba X Hoang
- Nimni-Cordoba Tissue Engineering and Drug Discovery Lab, Department of Surgery, Keck School of Medicine of University of Southern California, Los Angeles, CA, U.S.A.
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13
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Wiltshire A, Schaal R, Wang F, Tsou T, McKerrow W, Keefe D. Vitrification with Dimethyl Sulfoxide Induces Transcriptomic Alteration of Gene and Transposable Element Expression in Immature Human Oocytes. Genes (Basel) 2023; 14:1232. [PMID: 37372413 DOI: 10.3390/genes14061232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 05/24/2023] [Accepted: 06/02/2023] [Indexed: 06/29/2023] Open
Abstract
Despite substantial advancements in the field of cryobiology, oocyte and embryo cryopreservation still compromise developmental competence. Furthermore, dimethyl sulfoxide (DMSO), one of the most commonly used cryoprotectants, has been found to exert potent effects on the epigenetic landscape of cultured human cells, as well as mouse oocytes and embryos. Little is known about its impact on human oocytes. Additionally, few studies investigate the effects of DMSO on transposable elements (TE), the control of which is essential for the maintenance of genomic instability. The objective of this study was to investigate the impact of vitrification with DMSO-containing cryoprotectant on the transcriptome, including on TEs, of human oocytes. Twenty-four oocytes at the GV stage were donated by four healthy women undergoing elective oocyte cryopreservation. Oocytes were paired such that half from each patient were vitrified with DMSO-containing cryoprotectant (Vitrified Cohort), while the other half were snap frozen in phosphate buffer, unexposed to DMSO (Non-Vitrified Cohort). All oocytes underwent RNA sequencing via a method with high fidelity for single cell analysis, and which allows for the analysis of TE expression through Switching Mechanism at the 5'-end of the RNA Transcript sequencing 2 (SMARTseq2), followed by functional enrichment analysis. Of the 27,837 genes identified by SMARTseq2, 7331 (26.3%) were differentially expressed (p < 0.05). There was a significant dysregulation of genes involved in chromatin and histone modification. Mitochondrial function, as well as the Wnt, insulin, mTOR, HIPPO, and MAPK signaling pathways were also altered. The expression of TEs was positively correlated with the expression of PIWIL2, DNMT3A, and DNMT3B, and negatively correlated with age. These findings suggest that the current standard process of oocyte vitrification, involving DMSO-containing cryoprotectant, induces significant transcriptome changes, including those involving TEs.
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Affiliation(s)
- Ashley Wiltshire
- Department of Obstetrics and Gynecology, Division of Reproductive Endocrinology and Infertility, New York University Langone Fertility Center, 660 1st Avenue, New York, NY 10016, USA
| | - Renata Schaal
- Department of Obstetrics and Gynecology, Division of Reproductive Endocrinology and Infertility, New York University Langone Fertility Center, 660 1st Avenue, New York, NY 10016, USA
| | - Fang Wang
- Department of Obstetrics and Gynecology, Division of Reproductive Endocrinology and Infertility, New York University Langone Fertility Center, 660 1st Avenue, New York, NY 10016, USA
| | - Tiffany Tsou
- Institute for Systems Genetics, New York University Langone Medical Center, 550 1st Avenue, New York, NY 10016, USA
| | - Wilson McKerrow
- Institute for Systems Genetics, New York University Langone Medical Center, 550 1st Avenue, New York, NY 10016, USA
| | - David Keefe
- Department of Obstetrics and Gynecology, Division of Reproductive Endocrinology and Infertility, New York University Langone Fertility Center, 660 1st Avenue, New York, NY 10016, USA
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14
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Di Mauro V, Kamyab E, Kellermann MY, Moeller M, Nietzer S, Luetjens LH, Pawlowski S, Petersen-Thiery M, Schupp PJ. Ecotoxicological Effects of Four Commonly Used Organic Solvents on the Scleractinian Coral Montipora digitata. Toxics 2023; 11:367. [PMID: 37112595 PMCID: PMC10146860 DOI: 10.3390/toxics11040367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Revised: 04/01/2023] [Accepted: 04/03/2023] [Indexed: 06/19/2023]
Abstract
Organic solvents are often used in aquatic toxicity tests to facilitate the testing of hydrophobic or poorly water-soluble substances such as ultraviolet (UV) filters, pesticides, or polycyclic aromatic hydrocarbons (PAHs). Knowledge of intrinsic effects (i.e., measured as standardized and non-standardized endpoints) of such carrier solvents in non-standardized organisms (i.e., corals), is critical to regulatory processes. Therefore, we exposed the reef-building coral Montipora digitata to the most commonly used carrier solvents ethanol, methanol, dimethyl sulfoxide, and dimethylformamide in the range of 10-100 µL L-1 for 16 days. The effects on mortality, photobiological, morphological, and oxidative stress markers were evaluated. In our study, all solvents resulted in significant morphological and/or oxidative stress responses, but not in mortality. Moreover, ethanol led to a rapid increase in turbidity, thus questioning its suitability as a carrier solvent in aquatic studies in general. Based on our observations, we could rank the solvent effects as follows: dimethylformamide < dimethyl sulfoxide ≈ methanol ≤ ethanol, with dimethylformamide showing the least and ethanol the most pronounced effects. We conclude that the use of solvents in toxicity studies with corals, particularly by examining non-standardized (e.g., morphological, physiological) endpoints, should be taken with caution and requires further elaboration.
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Affiliation(s)
- Valentina Di Mauro
- Environmental Biochemistry Group, Institute for Chemistry and Biology of the Marine Environment (ICBM), School of Mathematics and Science, Carl von Ossietzky University of Oldenburg, Schleusenstr. 1, 26382 Wilhelmshaven, Germany
| | - Elham Kamyab
- German Center for Marine Biodiversity Research (DZMB), Senckenberg am Meer, 26382 Wilhelmshaven, Germany
| | - Matthias Y. Kellermann
- Environmental Biochemistry Group, Institute for Chemistry and Biology of the Marine Environment (ICBM), School of Mathematics and Science, Carl von Ossietzky University of Oldenburg, Schleusenstr. 1, 26382 Wilhelmshaven, Germany
| | - Mareen Moeller
- Environmental Biochemistry Group, Institute for Chemistry and Biology of the Marine Environment (ICBM), School of Mathematics and Science, Carl von Ossietzky University of Oldenburg, Schleusenstr. 1, 26382 Wilhelmshaven, Germany
| | - Samuel Nietzer
- Environmental Biochemistry Group, Institute for Chemistry and Biology of the Marine Environment (ICBM), School of Mathematics and Science, Carl von Ossietzky University of Oldenburg, Schleusenstr. 1, 26382 Wilhelmshaven, Germany
| | - Laura H. Luetjens
- Department of Product Safety, Regulatory Ecotoxicology, BASF SE, Carl-Bosch-Str. 38, 67056 Ludwigshafen am Rhein, Germany
| | - Sascha Pawlowski
- Department of Product Safety, Regulatory Ecotoxicology, BASF SE, Carl-Bosch-Str. 38, 67056 Ludwigshafen am Rhein, Germany
| | - Mechtild Petersen-Thiery
- Product Stewardship and EHS Data Management, BASF Personal Care and Nutrition GmbH, Rheinpromenade 1, 40789 Monheim am Rhein, Germany
| | - Peter J. Schupp
- Environmental Biochemistry Group, Institute for Chemistry and Biology of the Marine Environment (ICBM), School of Mathematics and Science, Carl von Ossietzky University of Oldenburg, Schleusenstr. 1, 26382 Wilhelmshaven, Germany
- Helmholtz Institute for Functional Marine Biodiversity (HIFMB), University of Oldenburg, Ammerländer Heerstr. 231, 26129 Oldenburg, Germany
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15
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Lachica CA, Miele MJ, Herrera SM, Elanbari M, Deola S, Saleh A, Ejaz A, Aftab S, Olagunju D, Laoun R, Cugno C. Albumin-based solution is the ideal post-thawing suspension medium for cord blood hematopoietic stem cells: A stability and proliferative evaluation. Transfusion 2023; 63:1050-1059. [PMID: 37036040 DOI: 10.1111/trf.17338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Revised: 02/22/2023] [Accepted: 03/06/2023] [Indexed: 04/11/2023]
Abstract
BACKGROUND Cryopreservation and thawing protocols represent key factors for the efficacy of cellular therapy products, such as hematopoietic stem cells (HSCs). While the HSC cryopreservation has already been standardized, the thawing procedures have been poorly studied. This study aimed to evaluate the thawing and washing protocol of cord blood (CB) derived HSCs or the HPC(CB), by selecting the optimal thawing solution and determining CD34+ cells' stability over time. STUDY DESIGN AND METHODS Seven cryopreserved CB products were thawed, washed, and resuspended in three different solutions (10% Dextran40 in NaCl equally prepared with 5% human albumin; 5% human albumin in PBS/EDTA; and normal saline) and stored at 4°C (±2°C). Mononuclear cell (MNC) count, CD45+/CD34+ cell enumeration, and cell viability were tested at 0, 1, 2, 4, 6, 8, 12, 24, 36, and 48 h. The protocol with the selected solution was further validated on additional 10 CB samples. The above parameters and the colony-forming unit (CFU) assay were analyzed at time points 0, 2, 4, 6, and 8 h. RESULTS AND DISCUSSION The results showed that the 5% human albumin was the most suitable thawing solution. MNCs were stable up to 4 h (p = 0.009), viable CD45+ cells were unstable even at 2 h (p = 0.013), and viable CD34+ cells were stable until 6 h (p = 0.019). The CFU assay proved the proliferative potential up to 8 h, although significantly decreased after 4 h (p = 0.013), and correlated with the viable CD34+ cell counts. We demonstrated that the post-thawed and washed HPC(CB) using 5% human albumin is stable for up to 4 h.
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Affiliation(s)
| | | | | | | | - Sara Deola
- Advanced Cell Therapy Core, Sidra Medicine, Doha, Qatar
| | - Ayman Saleh
- Pediatric Oncology and Hematology Division, Sidra Medicine, Doha, Qatar
| | - Anila Ejaz
- Pediatric Oncology and Hematology Division, Sidra Medicine, Doha, Qatar
| | - Syed Aftab
- Advanced Cell Therapy Core, Sidra Medicine, Doha, Qatar
| | - Damilola Olagunju
- Birth Center II and Women's Special Care, Sidra Medicine, Doha, Qatar
| | - Rabah Laoun
- Birth Center II and Women's Special Care, Sidra Medicine, Doha, Qatar
| | - Chiara Cugno
- Advanced Cell Therapy Core, Sidra Medicine, Doha, Qatar
- Pediatric Oncology and Hematology Division, Sidra Medicine, Doha, Qatar
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16
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Cruz E, Haeberle AL, Westerman TL, Durham ME, Suyemoto MM, Knodler LA, Elfenbein JR. Nonredundant Dimethyl Sulfoxide Reductases Influence Salmonella enterica Serotype Typhimurium Anaerobic Growth and Virulence. Infect Immun 2023; 91:e0057822. [PMID: 36722978 PMCID: PMC9933680 DOI: 10.1128/iai.00578-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Accepted: 01/10/2023] [Indexed: 02/02/2023] Open
Abstract
Facultative anaerobic enteric pathogens can utilize a diverse array of alternate electron acceptors to support anaerobic metabolism and thrive in the hypoxic conditions within the mammalian gut. Dimethyl sulfoxide (DMSO) is produced by methionine catabolism and can act as an alternate electron acceptor to support anaerobic respiration. The DMSO reductase complex consists of three subunits, DmsA, DmsB, and DmsC, and allows bacteria to grow anaerobically with DMSO as an electron acceptor. The genomes of nontyphoidal Salmonella enterica encode three putative dmsABC operons, but the impact of the apparent genetic redundancy in DMSO reduction on the fitness of nontyphoidal S. enterica during infection remains unknown. We hypothesized that DMSO reduction would be needed for S. enterica serotype Typhimurium to colonize the mammalian gut. We demonstrate that an S. Typhimurium mutant with loss of function in all three putative DMSO reductases (ΔdmsA3) poorly colonizes the mammalian intestine when the microbiota is intact and when inflammation is absent. DMSO reduction enhances anaerobic growth through nonredundant contributions of two of the DMSO reductases. Furthermore, DMSO reduction influences virulence by increasing expression of the type 3 secretion system 2 and reducing expression of the type 3 secretion system 1. Collectively, our data demonstrate that the DMSO reductases of S. Typhimurium are functionally nonredundant and suggest DMSO is a physiologically relevant electron acceptor that supports S. enterica fitness in the gut.
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Affiliation(s)
- E. Cruz
- Department of Pathobiological Sciences, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, Wisconsin, USA
- Microbiology Doctoral Training Program, University of Wisconsin-Madison, Madison, Wisconsin, USA
- Department of Clinical Sciences, College of Veterinary Medicine, North Carolina State University, Raleigh, North Carolina, USA
| | - A. L. Haeberle
- Paul G. Allen School for Global Health, College of Veterinary Medicine, Washington State University, Pullman, Washington, USA
| | - T. L. Westerman
- Department of Pathobiological Sciences, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, Wisconsin, USA
- Department of Clinical Sciences, College of Veterinary Medicine, North Carolina State University, Raleigh, North Carolina, USA
| | - M. E. Durham
- Department of Clinical Sciences, College of Veterinary Medicine, North Carolina State University, Raleigh, North Carolina, USA
| | - M. M. Suyemoto
- Department of Population Health and Pathobiology, College of Veterinary Medicine, North Carolina State University, Raleigh, North Carolina, USA
| | - L. A. Knodler
- Paul G. Allen School for Global Health, College of Veterinary Medicine, Washington State University, Pullman, Washington, USA
| | - J. R. Elfenbein
- Department of Pathobiological Sciences, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, Wisconsin, USA
- Department of Clinical Sciences, College of Veterinary Medicine, North Carolina State University, Raleigh, North Carolina, USA
- Food Research Institute, University of Wisconsin-Madison, Madison, Wisconsin, USA
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17
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Obara K, Matsuoka Y, Iwata N, Abe Y, Ikegami Y, Fujii A, Yoshioka K, Tanaka Y. Dimethyl Sulfoxide Enhances Acetylcholine-Induced Contractions in Rat Urinary Bladder Smooth Muscle by Inhibiting Acetylcholinesterase Activities. Biol Pharm Bull 2023; 46:354-358. [PMID: 36724965 DOI: 10.1248/bpb.b22-00791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Dimethyl sulfoxide (DMSO) has been used not only as an experimental solvent, but also as a therapeutic agent for interstitial cystitis. The therapeutic effects of DMSO on interstitial cystitis are presumed to involve anti-inflammatory and analgesic effects. However, the effects of DMSO on urinary bladder smooth muscle (UBSM) have not been fully investigated. Thus, in this study, we investigated the effects of DMSO on rat UBSM contractions, and these effects were compared with those of acetone, which has a structure in which the sulfur of DMSO is replaced with carbon. DMSO (0.5-5%) enhanced acetylcholine (ACh)-induced contractions, whereas acetone (3 and 5%) suppressed them. Additionally, DMSO (5%) suppressed carbachol-induced contractions. DMSO/acetone (0.5-5%) inhibited 80 mM KCl-induced contractions in a concentration-dependent manner; however, the inhibitory effects of DMSO were weaker than those of acetone. The enhancing/suppressing effects of DMSO and acetone were almost completely abolished by wash out. DMSO and acetone (0.5-5%) inhibited recombinant human acetylcholinesterase (rhAChE) activity in a concentration-dependent manner. At 0.5 and 1%, the inhibitory effects of DMSO on rhAChE activity were more potent than those of acetone. These findings suggest that DMSO can enhance ACh-induced UBSM contractions and promote urinary bladder motility by inhibiting acetylcholinesterase (AChE), although DMSO also inhibits Ca2+ influx-mediated UBSM contractions. In addition, the sulfur atom in DMSO might play an important role in its enhancing effect on ACh-induced contractions by inhibiting AChE, as acetone did not enhance these contractions.
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Affiliation(s)
- Keisuke Obara
- Department of Chemical Pharmacology, Faculty of Pharmaceutical Sciences, Toho University
| | - Yuka Matsuoka
- Department of Chemical Pharmacology, Faculty of Pharmaceutical Sciences, Toho University
| | - Naoya Iwata
- Department of Chemical Pharmacology, Faculty of Pharmaceutical Sciences, Toho University
| | - Yukako Abe
- Department of Chemical Pharmacology, Faculty of Pharmaceutical Sciences, Toho University
| | - Yohei Ikegami
- Department of Chemical Pharmacology, Faculty of Pharmaceutical Sciences, Toho University
| | - Ayano Fujii
- Department of Chemical Pharmacology, Faculty of Pharmaceutical Sciences, Toho University
| | - Kento Yoshioka
- Department of Chemical Pharmacology, Faculty of Pharmaceutical Sciences, Toho University
| | - Yoshio Tanaka
- Department of Chemical Pharmacology, Faculty of Pharmaceutical Sciences, Toho University
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18
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HOANG BAX, HAN BO, FANG WILLIAMH, TRAN HAUD, HOANG CUONG, SHAW DAVIDG, NGUYEN THAIQ. The Rationality of Implementation of Dimethyl Sulfoxide as Differentiation-inducing Agent in Cancer Therapy. Cancer Diagn Progn 2023; 3:1-8. [PMID: 36632588 PMCID: PMC9801450 DOI: 10.21873/cdp.10172] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Accepted: 10/25/2022] [Indexed: 01/01/2023]
Abstract
One of the major hallmarks of many cancer cells is dedifferentiated cells (immature cells) with little or no resemblance to normal cells. Besides the poor differentiation, malignant cells also have important features such as aggressiveness and resistance to different therapeutics. Differentiation potentiators hold great promise for cancer treatment. Dimethyl sulfoxide (DMSO) is a well-characterized pharmaceutical solvent. It is used as a component of numerous cancer therapeutic approaches, including cancer treatment and several approved cancer immune therapeutics such as Car-T cell therapy and the FDA-approved drug Mekinist (trametinib DMSO) for melanoma treatment. It is also biologically recognized as a pharmaceutical solvent and cryoprotectant. In the current literature, there are no mentions of DMSO's possible ability to potentiate therapeutic activity as a component of these cancer treatments. This review aimed to summarize scientific evidence and substantiate the concept that DMSO can contribute positively to the overall efficacy of cancer treatment as an adjuvant that is safe, inexpensive, and an effective differentiation-inducing therapeutic agent.
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Affiliation(s)
- BA X. HOANG
- Nimni-Cordoba Tissue Engineering and Drug Discovery Lab, Department of Surgery, Keck School of Medicine of the University of Southern California, Los Angeles, CA, U.S.A
| | - BO HAN
- Nimni-Cordoba Tissue Engineering and Drug Discovery Lab, Department of Surgery, Keck School of Medicine of the University of Southern California, Los Angeles, CA, U.S.A
| | - WILLIAM H. FANG
- Department of Translational Research, Western University of Health Sciences, Pomona, CA, U.S.A
| | - HAU D. TRAN
- Department of Oncology, National Children Hospital of Vietnam, Hanoi, Vietnam
| | - CUONG HOANG
- Department of Traumatology, National Institute of Ophthalmology of Vietnam, Hanoi, Vietnam
| | - DAVID G. SHAW
- Integrated Medical Associates, Foster City, CA, U.S.A
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Smith-Norowitz TA, Abdelmajid H, Yin C, Choice S, Joks R, Kohlhoff S. Effect of Dimethyl Sulfoxide on B Cells in PHA-Stimulated PBMC from Adult Subjects. A Pilot Study. Ann Clin Lab Sci 2023; 53:126-129. [PMID: 36889768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Subscribe] [Scholar Register] [Indexed: 03/10/2023]
Affiliation(s)
| | - Haram Abdelmajid
- Department of Pediatrics, Division of Infectious Diseases, Brooklyn, New York, USA
| | - Claire Yin
- Department of Pediatrics, Division of Infectious Diseases, Brooklyn, New York, USA
| | - Seto Choice
- Department of Pathology, State University of New York Downstate Health Sciences University, Brooklyn, New York, USA
| | - Rauno Joks
- Department of Medicine, State University of New York Downstate Health Sciences University, Brooklyn, New York, USA
| | - Stephan Kohlhoff
- Department of Pediatrics, Division of Infectious Diseases, Brooklyn, New York, USA
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20
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Bisconti M, Grosjean P, Arcolia V, Simon JF, Hennebert E. Influence of Two Widely Used Solvents, Ethanol and Dimethyl Sulfoxide, on Human Sperm Parameters. Int J Mol Sci 2022; 24. [PMID: 36613946 DOI: 10.3390/ijms24010505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 12/14/2022] [Accepted: 12/20/2022] [Indexed: 12/29/2022] Open
Abstract
To study mechanisms involved in fertility, many experimental assays are conducted by incubating spermatozoa in the presence of molecules dissolved in solvents such as ethanol (EtOH) or dimethyl sulfoxide (DMSO). Although a vehicle control group is usually included in such studies, it does not allow to evaluate the intrinsic effect of the solvent on sperm parameters and its potential influence on the outcome of the experiment. In the present study, we incubated human spermatozoa for 4 h in a capacitation medium in the absence or the presence of different concentrations of EtOH and DMSO (0.1, 0.5, 1.0, and 2.0%) to assess the impact of these solvents on sperm motility, vitality, capacitation, and acrosome integrity. The presence of statistically significant relationships between increasing solvent concentrations and the investigated parameters was assessed using linear mixed models. A significant effect was observed with both solvents for total and progressive sperm motilities. We also evaluated the effect of time for these parameters and showed that the influence of the solvents was stable between 0 and 4 h, indicating an almost direct impact of the solvents. While EtOH did not influence sperm vitality and acrosome integrity, a significant effect of increasing DMSO concentrations was observed for these parameters. Finally, regarding capacitation, measured via phosphotyrosine content, although a dose-dependent effect was observed with both solvents, the statistical analysis did not allow to precisely evaluate the intensity of the effect. Based on the results obtained in the present study, and the corresponding linear mixed models, we calculated the concentration of both solvents which would result in a 5% decline in sperm parameters. For EtOH, these concentrations are 0.9, 0.7, and 0.3% for total motility, progressive motility, and capacitation, respectively, while for DMSO they are 1.5, 1.1, >2, 0.3 and >2% for total motility, progressive motility, vitality, capacitation, and acrosome integrity, respectively. We recommend using solvent concentrations below these values to dissolve molecules used to study sperm function in vitro, to limit side effects.
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21
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Cui HL. Recent Advances in DMSO-Based Direct Synthesis of Heterocycles. Molecules 2022; 27:molecules27238480. [PMID: 36500564 PMCID: PMC9738701 DOI: 10.3390/molecules27238480] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Revised: 11/17/2022] [Accepted: 11/21/2022] [Indexed: 12/12/2022]
Abstract
Besides serving as a low-toxicity, inexpensive and easily accessible solvent, dimethyl sulfoxide (DMSO) has also been extensively used as a versatile reagent for the synthesis of functionalized molecules. Dimethyl sulfoxide can not only be utilized as a carbon source, a sulfur source and an oxygen source, but also be employed as a crucial oxidant enabling various transformations. The past decade has witnessed a large number of impressive achievements on the direct synthesis of heterocycles as well as modifications of heterocyclic compounds by applying DMSO as a reagent. This review summarized the DMSO-based direct heterocycle constructions from 2012 to 2022.
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Affiliation(s)
- Hai-Lei Cui
- Laboratory of Asymmetric Synthesis, Chongqing University of Arts and Sciences, 319 Honghe Ave., Yongchuan, Chongqing 402160, China
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22
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Ii Y, Gao G, Liao X, Yang J, Ye R, Zheng X. Intermittent urethral infusion of dimethylsulfoxide for urethral amyloidosis: a case report and literature review. Aging Male 2022; 25:180-184. [PMID: 35815465 DOI: 10.1080/13685538.2022.2097220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Abstract
Urethral amyloidosis (UA) is a very rare condition. We here report the case of a 63-year-old male patient who was admitted to our outpatient department due to aggravating dysuria, frequent urination, pain during intercourse, and a gradually enlarging mass at the ostium of his urethra, which he first notice one year earlier. Pathological tissue biopsy of urethral ostium mass confirmed UA. Intermittent urethra infusion of dimethyl sulfoxide was performed and the treatment effect is satisfactory.
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Affiliation(s)
- Yunzhi Ii
- Beijing University of Chinese Medicine, Beijing, PR China
| | - Guojing Gao
- Beijing University of Chinese Medicine Third Affiliated Hospital, Beijing, PR China
| | - Xiaoxing Liao
- Beijing University of Chinese Medicine Third Affiliated Hospital, Beijing, PR China
| | - Jianghua Yang
- Beijing Aerospace General Hospital, Beijing, PR China
| | - Rongzhen Ye
- Beijing Aerospace General Hospital, Beijing, PR China
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23
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Xing H, Fei Y, Cheng J, Wang C, Zhang J, Niu C, Fu Q, Cheng J, Lu L. Green Preparation of Durian Rind-Based Cellulose Nanofiber and Its Application in Aerogel. Molecules 2022; 27:6507. [PMID: 36235046 DOI: 10.3390/molecules27196507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/28/2022] [Revised: 09/26/2022] [Accepted: 09/30/2022] [Indexed: 11/07/2022]
Abstract
In this study, a green, highly efficient and low energy consumption preparation method of cellulose nanofiber (CNF) was developed by using agricultural and forestry waste durian rinds as raw materials. The power of ultrasonic treatment was successfully reduced to only 360 W with low molecular weight liquid DMSO. The obtained durian rind-based CNF had a diameter of 8–20 nm and a length of several micrometers. It had good dispersion and stability in water, and could spontaneously cross-link to form hydrogel at room temperature when the concentration was more than 0.5%. The microscopic morphology and compressive properties of CNF aerogels and composite cellulose aerogels prepared from durian rind-based CNF were evaluated. It was found that CNF could effectively prevent the volume shrinkage of aerogel, and the concentration of CNF had a significant effect on the microstructure and mechanical properties of aerogel. The CNF aerogel with 1% CNF exhibited a sheet structure braced by fibers, which had the strongest compression performance. The porosity of CNF aerogels was high to 99%. The compressive strength of the composite cellulose aerogel with durian rind-based CNF was effectively enhanced.
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24
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Tamagawa S, Sakai D, Schol J, Sako K, Nakamura Y, Matsushita E, Warita T, Hazuki S, Nojiri H, Sato M, Ishijima M, Watanabe M. N-acetylcysteine attenuates oxidative stress-mediated cell viability loss induced by dimethyl sulfoxide in cryopreservation of human nucleus pulposus cells: A potential solution for mass production. JOR Spine 2022; 5:e1223. [PMID: 36601378 PMCID: PMC9799083 DOI: 10.1002/jsp2.1223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 07/13/2022] [Accepted: 08/16/2022] [Indexed: 11/06/2022] Open
Abstract
Background Cell therapy is considered a promising strategy for intervertebral disc (IVD) regeneration. However, cell products often require long-term cryopreservation, which compromises cell viability and potency, thus potentially hindering commercialization and off-the-shelf availability. Dimethyl sulfoxide (DMSO) is a commonly used cryoprotectant, however, DMSO is associated with cytotoxicity and cell viability loss. This study aimed to investigate the effects of DMSO on human nucleus pulposus cells (NPC) and the role of oxidative stress in DMSO-induced cytotoxicity. Furthermore, we examined the potential of antioxidant N-acetylcysteine (NAC) supplementation to mitigate the negative effects of DMSO. Methods NPC were exposed to various concentrations of DMSO with or without a freezing cycle. Cell viability, cell apoptosis and necrosis rates, intracellular reactive oxygen species (ROS) levels, and gene expression of major antioxidant enzymes were evaluated. In addition, NAC was added to cryopreservation medium containing 10% DMSO and its effects on ROS levels and cell viability were assessed. Results DMSO concentrations ≤1% for 24 h did not significantly affect the NPC viability, whereas exposure to 5 and 10% DMSO (most commonly used concentration) caused cell viability loss (loss of 57% and 68% respectively after 24 h) and cell death in a dose- and time-dependent manner. DMSO increased intracellular and mitochondrial ROS (1.9-fold and 3.6-fold respectively after 12 h exposure to 10% DMSO) and downregulated gene expression levels of antioxidant enzymes in a dose-dependent manner. Tempering ROS through NAC treatment significantly attenuated DMSO-induced oxidative stress and supported maintenance of cell viability. Conclusions This study demonstrated dose- and time-dependent cytotoxic effects of DMSO on human NPC. The addition of NAC to the cryopreservation medium ameliorated cell viability loss by reducing DMSO-induced oxidative stress in the freeze-thawing cycle. These findings may be useful for future clinical applications of whole cells and cellular products.
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Affiliation(s)
- Shota Tamagawa
- Department of Medicine for Orthopaedics and Motor OrganJuntendo University Graduate School of MedicineTokyoJapan,Department of Orthopaedic Surgery, Surgical ScienceTokai University School of MedicineIseharaJapan
| | - Daisuke Sakai
- Department of Orthopaedic Surgery, Surgical ScienceTokai University School of MedicineIseharaJapan
| | - Jordy Schol
- Department of Orthopaedic Surgery, Surgical ScienceTokai University School of MedicineIseharaJapan
| | - Kosuke Sako
- Department of Orthopaedic Surgery, Surgical ScienceTokai University School of MedicineIseharaJapan
| | - Yoshihiko Nakamura
- Research Center for Regenerative MedicineTokai University School of MedicineIseharaJapan
| | - Erika Matsushita
- Department of Orthopaedic Surgery, Surgical ScienceTokai University School of MedicineIseharaJapan
| | - Takayuki Warita
- Department of Orthopaedic Surgery, Surgical ScienceTokai University School of MedicineIseharaJapan,TUNZ Pharma Co., Ltd.OsakaJapan
| | - Soma Hazuki
- Department of Orthopaedic Surgery, Surgical ScienceTokai University School of MedicineIseharaJapan,TUNZ Pharma Co., Ltd.OsakaJapan
| | - Hidetoshi Nojiri
- Department of Medicine for Orthopaedics and Motor OrganJuntendo University Graduate School of MedicineTokyoJapan
| | - Masato Sato
- Department of Orthopaedic Surgery, Surgical ScienceTokai University School of MedicineIseharaJapan
| | - Muneaki Ishijima
- Department of Medicine for Orthopaedics and Motor OrganJuntendo University Graduate School of MedicineTokyoJapan
| | - Masahiko Watanabe
- Department of Orthopaedic Surgery, Surgical ScienceTokai University School of MedicineIseharaJapan
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Kožák J, Chrétien C, Pellequer Y, Lamprecht A. Rivaroxaban lyospheres prepared by a dimethyl sulfoxide-based spray-freeze-drying process. Int J Pharm 2022;:122235. [PMID: 36170899 DOI: 10.1016/j.ijpharm.2022.122235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Revised: 09/21/2022] [Accepted: 09/21/2022] [Indexed: 11/23/2022]
Abstract
Spray-freeze-drying (SFD) processes are usually using aqueous solvent systems, which however, exclude the use of SFD for poorly water-soluble drugs. Here, we evaluated dimethyl sulfoxide for its suitability in formulating SFD particles (lyospheres®). Rivaroxaban was spray-freeze-dried from DMSO solutions containing polyvinyl pyrrolidone (PVP; Kollidon® 25), vinylpyrrolidone-vinyl acetate copolymer (PVP-VA; Kollidon® VA64) or polyvinyl alcohol 4-88 (PVA) forming porous lyospheres® (median particle size 250 to 350 µm). Rivaroxaban was amorphous with all three polymers, which in combination with their high porosity resulted in rapid dissolution in vitro within 10 minutes. Consequently, this translated in lower Tmax (0.5-1.0 hour) after oral administration of lyospheres® to rats (compared with Tmax of 4 hours with coarse rivaroxaban). Lyosphere formulations achieved a distinct bioavailability increase (AUC(0-inf) = 1487±657 ng*h/ml with PVP; 4426±1553 ng*h/ml with PVP-VA; 9569±3868 ng*h/ml with PVA lyospheres®; whereas 385±145 ng*h/ml with coarse rivaroxaban). These in vitro and in vivo results underlined the benefit of using DMSO in SFD that can broaden the applicability of the SFD process to much a larger repertoire of poorly water-soluble drugs.
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26
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Nyongombe G, Kabongo GL, Noto LL, Dhlamini MS. Advantage of Dimethyl Sulfoxide in the Fabrication of Binder-Free Layered Double Hydroxides Electrodes: Impacts of Physical Parameters on the Crystalline Domain and Electrochemical Performance. Int J Mol Sci 2022; 23:ijms231710192. [PMID: 36077588 PMCID: PMC9456269 DOI: 10.3390/ijms231710192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Revised: 08/25/2022] [Accepted: 08/30/2022] [Indexed: 11/16/2022] Open
Abstract
The electrode fabrication stage is a crucial step in the design of supercapacitors. The latter involves the binder generally for adhesive purposes. The binder is electrochemically dormant and has weak interactions, leading to isolating the active material and conductive additive and then compromising the electrochemical performance. Designing binder-free electrodes is a practical way to improve the electrochemical performance of supercapacitors. However, most of the methods developed for the fabrication of binder-free LDH electrodes do not accommodate LDH materials prepared via the co-precipitation or ions exchange routes. Herein, we developed a novel method to fabricate binder-free LDH electrodes which accommodates LDH materials from other synthesis routes. The induced impacts of various physical parameters such as the temperature and time applied during the fabrication process on the crystalline domain and electrochemical performances of all the binder-free LDH electrodes were studied. The electrochemical analysis showed that the electrode prepared at 200 °C-1 h exhibited the best electrochemical performance compared to its counterparts. A specific capacitance of 3050.95 Fg-1 at 10 mVs-1 was achieved by it, while its Rct value was 0.68 Ω. Moreover, it retained 97% of capacitance after 5000 cycles at 120 mVs-1. The XRD and FTIR studies demonstrated that its excellent electrochemical performance was due to its crystalline domain which had held an important amount of water than other electrodes. The as-developed method proved to be reliable and advantageous due to its simplicity and cost-effectiveness.
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Min H, Hu J, Xu Z, Liu T, Khan SUZ, Roh K, Loo YL, Rand BP. Hot-Casting-Assisted Liquid Additive Engineering for Efficient and Stable Perovskite Solar Cells. Adv Mater 2022; 34:e2205309. [PMID: 35841176 DOI: 10.1002/adma.202205309] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2022] [Revised: 07/12/2022] [Indexed: 06/15/2023]
Abstract
High-performance inorganic-organic lead halide perovskite solar cells (PSCs) are often fabricated with a liquid additive such as dimethyl sulfoxide (DMSO), which retards crystallization and reduces roughness and pinholes in the perovskite layers. However, DMSO can be trapped during perovskite film formation and induce voids and undesired reaction byproducts upon later processing steps. Here, it is shown that the amount of residual DMSO can be reduced in as-spin-coated films significantly through use of preheated substrates, or a so-called hot-casting method. Hot casting increases the perovskite film thickness given the same concentration of solutions, which allows for reducing the perovskite solution concentration. By reducing the amount of DMSO in proportion to the concentration of perovskite precursors and using hot casting, it is possible to fabricate perovskite layers with improved perovskite-substrate interfaces by suppressing the formation of byproducts, which increase trap density and accelerate degradation of the perovskite layers. The best-performing PSCs exhibit a power conversion efficiency (PCE) of 23.4% (23.0% stabilized efficiency) under simulated solar illumination. Furthermore, encapsulated devices show considerably reduced post-burn-in decay, retaining 75% and 90% of their initial and post-burn-in efficiencies after 3000 h of operation with maximum power point tracking (MPPT) under high power of ultraviolet (UV)-containing continuous light exposure.
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Affiliation(s)
- Hanul Min
- Department of Electrical and Computer Engineering, Princeton University, Princeton, NJ, 08544, USA
- Princeton Institute for International and Regional Studies, Princeton University, Princeton, NJ, 08544, USA
| | - Junnan Hu
- Department of Electrical and Computer Engineering, Princeton University, Princeton, NJ, 08544, USA
| | - Zhaojian Xu
- Department of Electrical and Computer Engineering, Princeton University, Princeton, NJ, 08544, USA
| | - Tianran Liu
- Department of Electrical and Computer Engineering, Princeton University, Princeton, NJ, 08544, USA
| | - Saeed-Uz-Zaman Khan
- Department of Electrical and Computer Engineering, Princeton University, Princeton, NJ, 08544, USA
| | - Kwangdong Roh
- Department of Electrical and Computer Engineering, Princeton University, Princeton, NJ, 08544, USA
| | - Yueh-Lin Loo
- Department of Chemical and Biological Engineering, Princeton University, Princeton, NJ, 08544, USA
| | - Barry P Rand
- Department of Electrical and Computer Engineering, Princeton University, Princeton, NJ, 08544, USA
- Andlinger Center for Energy and the Environment, Princeton University, Princeton, NJ, 08544, USA
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Gallardo-Villagrán M, Paulus L, Leger DY, Therrien B, Liagre B. Dimethyl Sulfoxide: A Bio-Friendly or Bio-Hazard Chemical? The Effect of DMSO in Human Fibroblast-like Synoviocytes. Molecules 2022; 27:molecules27144472. [PMID: 35889344 PMCID: PMC9318029 DOI: 10.3390/molecules27144472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 07/06/2022] [Accepted: 07/11/2022] [Indexed: 02/01/2023] Open
Abstract
The effect of dimethyl sulfoxide (DMSO) in rheumatoid arthritis (RA) human fibroblast-like synoviocytes (FLSs) has been studied on five different samples harvested from the joints (fingers, hands and pelvis) of five women with RA. At high concentrations (>5%), the presence of DMSO induces the cleavage of caspase-3 and PARP-1, two phenomena associated with the cell death mechanism. Even at a 0.5% concentration of DMSO, MTT assays show a strong toxicity after 24 h exposure (≈25% cell death). Therefore, to ensure a minimum impact of DMSO on RA FLSs, our study shows that the concentration of DMSO has to be below 0.05% to be considered safe.
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Affiliation(s)
- Manuel Gallardo-Villagrán
- Institut de Chimie, Université de Neuchâtel, Avenue de Bellevaux 51, CH-2000 Neuchâtel, Switzerland; (M.G.-V.); (B.T.)
- Laboratoire PEIRENE UR 22722, Faculté de Pharmacie, Université de Limoges, F-87025 Limoges, France; (L.P.); (D.Y.L.)
| | - Lucie Paulus
- Laboratoire PEIRENE UR 22722, Faculté de Pharmacie, Université de Limoges, F-87025 Limoges, France; (L.P.); (D.Y.L.)
| | - David Yannick Leger
- Laboratoire PEIRENE UR 22722, Faculté de Pharmacie, Université de Limoges, F-87025 Limoges, France; (L.P.); (D.Y.L.)
| | - Bruno Therrien
- Institut de Chimie, Université de Neuchâtel, Avenue de Bellevaux 51, CH-2000 Neuchâtel, Switzerland; (M.G.-V.); (B.T.)
| | - Bertrand Liagre
- Laboratoire PEIRENE UR 22722, Faculté de Pharmacie, Université de Limoges, F-87025 Limoges, France; (L.P.); (D.Y.L.)
- Correspondence:
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Schroll M, Lenhart K, Greiner S, Keppler F. Making plant methane formation visible-Insights from application of 13C-labeled dimethyl sulfoxide. Plant Environ Interact 2022; 3:104-117. [PMID: 37284426 PMCID: PMC10168057 DOI: 10.1002/pei3.10076] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 04/06/2022] [Accepted: 04/15/2022] [Indexed: 06/08/2023]
Abstract
Methane (CH4) formation by vegetation has been studied intensively over the last 15 years. However, reported CH4 emissions vary by several orders of magnitude, thus making global estimates difficult. Moreover, the mechanism(s) for CH4 formation by plants is (are) largely unknown.Here, we introduce a new approach for making CH4 formation by plants clearly visible. By application of 13C-labeled dimethyl sulfoxide (DMSO) onto the leaves of tobacco plants (Nicotiana tabacum) and Chinese silver grass (Miscanthus sinensis) the effect of light and dark conditions on CH4 formation of this pathway was examined by monitoring stable carbon isotope ratios of headspace CH4 (δ13C-CH4 values).Both plant species showed increasing headspace δ13C-CH4 values while exposed to light. Higher light intensities increased CH4 formation rates in N. tabacum but decreased rates for M. sinensis. In the dark no formation of CH4 could be detected for N. tabacum, while M. sinensis still produced ~50% of CH4 compared to that during light exposure.Our findings suggest that CH4 formation is clearly dependent on light conditions and plant species and thus indicate that DMSO is a potential precursor of vegetative CH4. The novel isotope approach has great potential to investigate, at high temporal resolution, physiological, and environmental factors that control pathway-specific CH4 emissions from plants.
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Affiliation(s)
- Moritz Schroll
- Institute of Earth SciencesHeidelberg UniversityHeidelbergGermany
| | - Katharina Lenhart
- Bingen University of Applied SciencesBingenGermany
- Center for Organismal Studies (COS)HeidelbergGermany
| | | | - Frank Keppler
- Institute of Earth SciencesHeidelberg UniversityHeidelbergGermany
- Heidelberg Center for the Environment (HCE)Heidelberg UniversityHeidelbergGermany
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Zhang C, McElroy AC, Liberatore HK, Alexander NLM, Knappe DR. Stability of Per- and Polyfluoroalkyl Substances in Solvents Relevant to Environmental and Toxicological Analysis. Environ Sci Technol 2022; 56:6103-6112. [PMID: 34734715 PMCID: PMC9065217 DOI: 10.1021/acs.est.1c03979] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
Per- and polyfluoroalkyl substances (PFASs) are widely used anthropogenic chemicals. For environmental and toxicological analysis, it is important to understand the stability of PFASs, including novel per- and polyfluoroalkyl ether acids (PFEAs), in commonly used solvents. In this study, we investigated the effects of PFAS characteristics, solvent type, water-to-organic solvent ratio, and temperature on the stability of 21 PFASs including 18 PFEAs. None of the studied PFASs showed measurable degradation in deionized water, methanol, or isopropyl alcohol over 30 days; however, nine PFEAs degraded in the polar aprotic solvents acetonitrile, acetone, and dimethyl sulfoxide (DMSO). PFEA degradation followed first-order kinetics, and first-order rate constants increased with increasing temperature and with decreasing water-to-organic solvent ratio. Monoethers with a carboxylic acid functional group adjacent to a tertiary carbon (>CF-COOH) degraded more rapidly than multiethers in which the carboxylic acid moiety was adjacent to repeating -CF2O- groups. In contrast, monoethers with a carboxylic acid moiety adjacent to a secondary carbon (-CF2-COOH) were stable in all tested solvents. Using high-resolution mass spectrometry, we determined that PFEAs with a >CF-COOH group were stoichiometrically decarboxylated in aprotic solvents and formed products with a >CFH group; e.g., hexafluoropropylene oxide-dimer acid (HFPO-DA or GenX), HFPO-trimer acid, and HFPO-tetramer acid were stoichiometrically converted to Fluoroethers E-1, E-2, and E-3, respectively. PFEA degradation results highlight the importance of solvent choice when preparing dosing solutions and performing extractions for environmental and toxicological assessments of PFEAs.
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Affiliation(s)
- Chuhui Zhang
- Department of Civil, Construction, and Environmental Engineering, North Carolina State University, Raleigh, North Carolina 27695, United States
| | - Amie C. McElroy
- Department of Civil, Construction, and Environmental Engineering, North Carolina State University, Raleigh, North Carolina 27695, United States
| | - Hannah K. Liberatore
- Center for Environmental Measurement and Modeling, Office of Research and Development, U.S. Environmental Protection Agency, Research Triangle Park, North Carolina 27711, United States
| | - Nancy Lee M. Alexander
- Department of Civil, Construction, and Environmental Engineering, North Carolina State University, Raleigh, North Carolina 27695, United States
| | - Detlef R.U. Knappe
- Department of Civil, Construction, and Environmental Engineering, North Carolina State University, Raleigh, North Carolina 27695, United States
- Center for Human Health and the Environment, North Carolina State University, Raleigh, North Carolina 27695, United States
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Whitehead RD, Teschke CM, Alexandrescu AT. Pulse-field gradient nuclear magnetic resonance of protein translational diffusion from native to non-native states. Protein Sci 2022; 31:e4321. [PMID: 35481638 PMCID: PMC9047038 DOI: 10.1002/pro.4321] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2022] [Revised: 03/31/2022] [Accepted: 04/12/2022] [Indexed: 01/31/2023]
Abstract
Hydrodynamic radii (Rh -values) calculated from diffusion coefficients measured by pulse-field-gradient nuclear magnetic resonance are compared for folded and unfolded proteins. For native globular proteins, the Rh -values increase as a power of 0.35 with molecular size, close to the scaling factor of 0.33 predicted from polymer theory. Unfolded proteins were studied under four sets of conditions: in the absence of denaturants, in the presence of 6 M urea, in 95% dimethyl sulfoxide (DMSO), and in 40% hexafluoroisopropanol (HFIP). Scaling factors under all four unfolding conditions are similar (0.49-0.53) approaching the theoretical value of 0.60 for a fully unfolded random coil. Persistence lengths are also similar, except smaller in 95% DMSO, suggesting that the polypeptides are more disordered on a local scale with this solvent. Three of the proteins in our unfolded set have an asymmetric sequence-distribution of charged residues. While these proteins behave normally in water and 6 M urea, they give atypically low Rh -values in 40% HFIP and 95% DMSO suggesting they are forming electrostatic hairpins, favored by their asymmetric sequence charge distribution and the low dielectric constants of DMSO and HFIP. While diffusion-ordered NMR spectroscopy can separate small molecules, we show a number of factors combine to make protein-sized molecules much more difficult to resolve in mixtures. Finally, we look at the temperature dependence of apparent diffusion coefficients. Small molecules show a linear temperature response, while large proteins show abnormally large apparent diffusion coefficients at high temperatures due to convection, suggesting diffusion reference standards are only useful near 25°C.
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Affiliation(s)
- Richard D Whitehead
- Department of Molecular and Cell Biology, University of Connecticut, Storrs, Connecticut, USA
| | - Carolyn M Teschke
- Department of Molecular and Cell Biology, University of Connecticut, Storrs, Connecticut, USA.,Department of Chemistry, University of Connecticut, Storrs, Connecticut, USA
| | - Andrei T Alexandrescu
- Department of Molecular and Cell Biology, University of Connecticut, Storrs, Connecticut, USA
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Wawer J, Karczewski J, Aranowski R, Piątek R, Augustin-Nowacka D, Bruździak P. Influence of Urea and Dimethyl Sulfoxide on K-Peptide Fibrillation. Int J Mol Sci 2022; 23:3027. [PMID: 35328447 DOI: 10.3390/ijms23063027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Revised: 03/06/2022] [Accepted: 03/09/2022] [Indexed: 11/17/2022] Open
Abstract
Protein fibrillation leads to formation of amyloids-linear aggregates that are hallmarks of many serious diseases, including Alzheimer's and Parkinson's diseases. In this work, we investigate the fibrillation of a short peptide (K-peptide) from the amyloidogenic core of hen egg white lysozyme in the presence of dimethyl sulfoxide or urea. During the studies, a variety of spectroscopic methods were used: fluorescence spectroscopy and the Thioflavin T assay, circular dichroism, Fourier-transform infrared spectroscopy, optical density measurements, dynamic light scattering and intrinsic fluorescence. Additionally, the presence of amyloids was confirmed by atomic force microscopy. The obtained results show that the K-peptide is highly prone to form fibrillar aggregates. The measurements also confirm the weak impact of dimethyl sulfoxide on peptide fibrillation and distinct influence of urea. We believe that the K-peptide has higher amyloidogenic propensity than the whole protein, i.e., hen egg white lysozyme, most likely due to the lack of the first step of amyloidogenesis-partial unfolding of the native structure. Urea influences the second step of K-peptide amyloidogenesis, i.e., folding into amyloids.
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Gupta A, Reshma G B, Singh P, Kohli E, Sengupta S, Ganguli M. A Combination of Synthetic Molecules Acts as Antifreeze for the Protection of Skin against Cold-Induced Injuries. ACS Appl Bio Mater 2022; 5:252-264. [PMID: 35014815 DOI: 10.1021/acsabm.1c01058] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Seasonal and occupational exposure of the human body to extreme cold temperatures can result in cell death in the exposed area due to the formation of ice crystals. This leads to superficial or deep burn injury and compromised functionality. Currently available therapeutics can be ineffective in extreme cases, and thus, it is necessary to develop prophylactic strategies. In this study, we have devised a combination of known synthetic cryopreservative agents (termed SynAFP) and evaluated their potential antifreeze applications on skin. The prophylactic activity of SynAFP in vitro is indicated by improved cellular revival and cell viability, retention of the cytoskeleton, and normal cell cycle progression even after cold stress. A comprehensive whole-cell proteomic approach revealed that in the presence of SynAFP, cold-induced downregulation of proteins involved in cell-cell adhesion and upregulation of those related to mitochondrial stress were ameliorated. Pre-application of SynAFP in mice facing a frostbite challenge prevents their skin from incurring significant injury as confirmed through macroscopic and histological examination. Moreover, multiple applications of SynAFP on mouse skin at room temperature did not compromise skin integrity. SynAFP was also formulated in anAloe vera-based cream (referred to as fSynAFP), which offered similar protection under cold stress conditions. Thus, SynAFP can be considered as a potential candidate for formulating a topical intervention for protection from cold-induced injuries to skin.
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Affiliation(s)
- Aanchal Gupta
- CSIR-Institute of Genomics and Integrative Biology, Mathura Road, New Delhi 110025, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Betsy Reshma G
- CSIR-Institute of Genomics and Integrative Biology, Mathura Road, New Delhi 110025, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Praveen Singh
- CSIR-Institute of Genomics and Integrative Biology, Mathura Road, New Delhi 110025, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Ekta Kohli
- Neurobiology Division, DIPAS, DRDO, Lucknow Road, Timarpur, Delhi 110054, India
| | - Shantanu Sengupta
- CSIR-Institute of Genomics and Integrative Biology, Mathura Road, New Delhi 110025, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Munia Ganguli
- CSIR-Institute of Genomics and Integrative Biology, Mathura Road, New Delhi 110025, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
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Abstract
<b>Background and Objective:</b> It is known that any genetic improvement depends on the presence of many genetic variations so that the plant breeder can choose the desired traits such as the trait of the crop or resistance to some diseases. Different or it can be used for selection, whether for yield, early maturity or other characteristics. This study aimed to use gamma irradiation and the chemical mutagen Dimethyl sulfoxide for the induction of genetic variation in two types of beans. <b>Materials and Methods:</b> The Giza 429 and Misr 1 genotypes were treated with three different concentrations of dimethyl sulfur oxide (1000, 2000 and 3000 ppm) and gamma radiation doses (10, 15 and 20 kr) to perform mutagenesis treatments. <b>Results:</b> In the first and second seasons of the study, all the mutations resulting from the radiological and chemical mutagenic treatments of the two Egyptian bean cultivars, Giza 429 and Misr 1, were highly significant for all treatments in the following traits: Number of branches/plant, plant height, number of pods/plant with the weight of 100 seeds (g) and seed yield/plant (g). <b>Conclusion:</b> The benefit of this research was obtained from plants that outperformed the two cultivars Giza 429 and Misr 1 and are considered among the promising plants that can be used in mixed breeding programs or direct selection for high productivity.
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Yoshimura N, Uno T, Sasaki M, Ohinata A, Nawata S, Ueda T. The O'Leary-Sant Interstitial Cystitis Symptom Index is a clinically useful indicator of treatment outcome in patients with interstitial cystitis/bladder pain syndrome with Hunner lesions: A post hoc analysis of the Japanese phase III trial of KRP-116D, 50% dimethyl sulfoxide solution. Int J Urol 2021; 29:289-296. [PMID: 34929761 PMCID: PMC9300131 DOI: 10.1111/iju.14765] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Accepted: 11/28/2021] [Indexed: 11/29/2022]
Abstract
OBJECTIVES To evaluate the efficacy of intravesical KRP-116D, 50% dimethyl sulfoxide solution, in interstitial cystitis/bladder pain syndrome patients with Hunner lesions (Hunner-type interstitial cystitis), and to evaluate the correlations between efficacy variables and global response assessment to determine what constitutes a minimal clinically important change. METHODS We performed a post hoc analysis of the Japanese phase III trial of KRP-116D. Changes at Week 12 from baseline in objective and subjective outcomes were compared between the KRP-116D and placebo groups in Hunner-type interstitial cystitis or non-Hunner-type interstitial cystitis patients. Correlations between efficacy variables at Week 12 and global response assessment were analyzed. Area under the receiver operating characteristic curve and the cut-off value of efficacy valuables were calculated to determine clinically meaningful changes. RESULTS The effectiveness of intravesical treatment with KRP-116D was demonstrated in Hunner-type interstitial cystitis, but not in non-Hunner-type interstitial cystitis patients. Global response assessment was closely correlated with subjective outcomes including O'Leary-Sant Interstitial Cystitis Symptom Index, O'Leary-Sant Interstitial Cystitis Problem Index, and a numeric rating scale for bladder pain, but was less correlated with voiding variables including micturition frequency, voided volume, and maximum voided volume. In the receiver operating characteristic curve analyses, the cut-off value for the O'Leary-Sant Interstitial Cystitis Symptom Index was -5 (sensitivity 81.3%, specificity 83.3%). CONCLUSIONS Clinical benefit of intravesical KRP-116D in Hunner-type interstitial cystitis patients was confirmed in this post hoc analysis. A five-point reduction in O'Leary-Sant Interstitial Cystitis Symptom Index is a clinically meaningful indicator for assessing patient satisfaction with KRP-116D treatment in patients with Hunner-type interstitial cystitis.
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Affiliation(s)
- Naoki Yoshimura
- Department of Urology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA.,Department of Urology, Ueda Clinic, Kyoto, Japan
| | - Takashi Uno
- Clinical Development Center, Kyorin Pharmaceutical Co., Ltd., Tokyo, Japan
| | - Mitsuru Sasaki
- Clinical Development Center, Kyorin Pharmaceutical Co., Ltd., Tokyo, Japan
| | - Akira Ohinata
- Clinical Development Center, Kyorin Pharmaceutical Co., Ltd., Tokyo, Japan
| | - Shigeki Nawata
- Clinical Development Center, Kyorin Pharmaceutical Co., Ltd., Tokyo, Japan
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Costes LH, Lippi Y, Naylies C, Jamin EL, Genthon C, Bailly S, Oswald IP, Bailly JD, Puel O. The Solvent Dimethyl Sulfoxide Affects Physiology, Transcriptome and Secondary Metabolism of Aspergillus flavus. J Fungi (Basel) 2021; 7:jof7121055. [PMID: 34947037 PMCID: PMC8703953 DOI: 10.3390/jof7121055] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 11/30/2021] [Accepted: 12/07/2021] [Indexed: 12/13/2022] Open
Abstract
Dimethyl sulfoxide (DSMO) is a simple molecule widely used because of its great solvating ability, but this solvent also has little-known biological effects, especially on fungi. Aspergillus flavus is a notorious pathogenic fungus which may contaminate a large variety of crops worldwide by producing aflatoxins, endangering at the same time food safety and international trade. The aim of this study was to characterize the effect of DMSO on A. flavus including developmental parameters such as germination and sporulation, as well as its transcriptome profile using high-throughput RNA-sequencing assay and its impact on secondary metabolism (SM). After DMSO exposure, A. flavus displayed depigmented conidia in a dose-dependent manner. The four-day exposition of cultures to two doses of DMSO, chosen on the basis of depigmentation intensity (35 mM “low” and 282 mM “high”), led to no significant impact on fungal growth, germination or sporulation. However, transcriptomic data analysis showed that 4891 genes were differentially regulated in response to DMSO (46% of studied transcripts). A total of 4650 genes were specifically regulated in response to the highest dose of DMSO, while only 19 genes were modulated upon exposure to the lowest dose. Secondary metabolites clusters genes were widely affected by the DMSO, with 91% of clusters impacted at the highest dose. Among these, aflatoxins, cyclopiazonic acid and ustiloxin B clusters were totally under-expressed. The genes belonging to the AFB1 cluster were the most negatively modulated ones, the two doses leading to 63% and 100% inhibition of the AFB1 production, respectively. The SM analysis also showed the disappearance of ustiloxin B and a 10-fold reduction of cyclopiazonic acid level when A. flavus was treated by the higher DMSO dose. In conclusion, the present study showed that DMSO impacted widely A. flavus’ transcriptome, including secondary metabolism gene clusters with the aflatoxins at the head of down-regulated ones. The solvent also inhibits conidial pigmentation, which could illustrate common regulatory mechanisms between aflatoxins and fungal pigment pathways. Because of its effect on major metabolites synthesis, DMSO should not be used as solvent especially in studies testing anti-aflatoxinogenic compounds.
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Affiliation(s)
- Laura H. Costes
- TOXALIM (Research Center in Food Toxicology), Université de Toulouse, INRAE, ENVT, EI-Purpan, Toulouse 31027, France; (L.H.C.); (Y.L.); (C.N.); (E.L.J.); (S.B.); (I.P.O.); (O.P.)
| | - Yannick Lippi
- TOXALIM (Research Center in Food Toxicology), Université de Toulouse, INRAE, ENVT, EI-Purpan, Toulouse 31027, France; (L.H.C.); (Y.L.); (C.N.); (E.L.J.); (S.B.); (I.P.O.); (O.P.)
| | - Claire Naylies
- TOXALIM (Research Center in Food Toxicology), Université de Toulouse, INRAE, ENVT, EI-Purpan, Toulouse 31027, France; (L.H.C.); (Y.L.); (C.N.); (E.L.J.); (S.B.); (I.P.O.); (O.P.)
| | - Emilien L. Jamin
- TOXALIM (Research Center in Food Toxicology), Université de Toulouse, INRAE, ENVT, EI-Purpan, Toulouse 31027, France; (L.H.C.); (Y.L.); (C.N.); (E.L.J.); (S.B.); (I.P.O.); (O.P.)
- Metatoul-AXIOM Platform, MetaboHUB, National Infrastructure for Metabolomics and Fluxomics, Toulouse 31000, France
| | - Clémence Genthon
- INRAE, US1426, GeT-PlaGe, Genotoul, 31326 Castanet-Tolosan, France;
| | - Sylviane Bailly
- TOXALIM (Research Center in Food Toxicology), Université de Toulouse, INRAE, ENVT, EI-Purpan, Toulouse 31027, France; (L.H.C.); (Y.L.); (C.N.); (E.L.J.); (S.B.); (I.P.O.); (O.P.)
| | - Isabelle P. Oswald
- TOXALIM (Research Center in Food Toxicology), Université de Toulouse, INRAE, ENVT, EI-Purpan, Toulouse 31027, France; (L.H.C.); (Y.L.); (C.N.); (E.L.J.); (S.B.); (I.P.O.); (O.P.)
| | - Jean-Denis Bailly
- TOXALIM (Research Center in Food Toxicology), Université de Toulouse, INRAE, ENVT, EI-Purpan, Toulouse 31027, France; (L.H.C.); (Y.L.); (C.N.); (E.L.J.); (S.B.); (I.P.O.); (O.P.)
- Correspondence:
| | - Olivier Puel
- TOXALIM (Research Center in Food Toxicology), Université de Toulouse, INRAE, ENVT, EI-Purpan, Toulouse 31027, France; (L.H.C.); (Y.L.); (C.N.); (E.L.J.); (S.B.); (I.P.O.); (O.P.)
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Cardenas AFM, Araujo LCR, Szesz AL, de Jesus Tavarez RR, Siqueira FSFD, Reis A, Loguercio AD. Influence of Application of Dimethyl Sulfoxide on the Bonding Properties to Eroded Dentin. J Adhes Dent 2021; 23:589-598. [PMID: 34817974 DOI: 10.3290/j.jad.b2287671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
PURPOSE To evaluate the effect of dimethyl sulfoxide (DMSO) on the microtensile bond strength (µTBS), nanoleakage (NL), and degree of conversion (DC) of universal adhesives on eroded dentin. MATERIALS AND METHODS One hundred thirty-four extracted (134) human third molars were selected for the study. After the dentin surface was exposed, 128 teeth were randomly assigned to 16 experimental groups as follows: dentin surfaces (sound dentin and eroded dentin), application of DMSO (without or with the application of DMSO), and adhesive strategies (etch-and-rinse [ER] and self-etch [SE]). The universal adhesive systems iBond Universal (IBU) and Scotchbond Universal (SBU) were applied and the teeth were restored using a resin composite. After 24 h in distilled water at 37°C, the samples were sectioned and evaluated for μTBS. Selected sticks from each tooth were used for evaluating NL and DC. The remaining six teeth were used to measure the thickness of the collagen layer of the artificially eroded dentin using scanning electron microscopy. Data on μTBS, NL, and DC (%) were analyzed using three-way ANOVA and Tukey's test (α = 0.05). RESULTS Significantly lower μTBS (p = 0.0001) and DC (p = 0.01) were observed for eroded dentin than for sound dentin. However, a significant increase in the μTBS (p = 0.0007) and DC (p = 0.001) was observed for both substrates when DMSO was applied. Moreover, the application of DMSO decreased the concentration of silver nitrate at the bottom of the hybrid layer for both sound and eroded dentin (p = 0.002). Eroded dentin showed enlarged tubules with the presence of a collapsed collagen fibril layer approximately 5.0 ± 2.0 mm of thickness. CONCLUSION The bonding performance of both tested universal adhesives improved on both sound and eroded dentin with DMSO pretreatment.
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An X, Yang X, Li Q. Tetrel Bonds between Phenyltrifluorosilane and Dimethyl Sulfoxide: Influence of Basis Sets, Substitution and Competition. Molecules 2021; 26:molecules26237231. [PMID: 34885810 PMCID: PMC8658981 DOI: 10.3390/molecules26237231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2021] [Revised: 11/19/2021] [Accepted: 11/22/2021] [Indexed: 11/16/2022] Open
Abstract
Ab initio calculations have been performed for the complexes of DMSO and phenyltrifluorosilane (PTS) and its derivatives with a substituent of NH3, OCH3, CH3, OH, F, CHO, CN, NO2, and SO3H. It is necessary to use sufficiently flexible basis sets, such as aug’-cc-pVTZ, to get reliable results for the Si···O tetrel bonds. The tetrel bond in these complexes has been characterized in views of geometries, interaction energies, orbital interactions and topological parameters. The electron-donating group in PTS weakens this interaction and the electron-withdrawing group prominently strengthens it to the point where it exceeds that of the majority of hydrogen bonds. The largest interaction energy occurs in the p-HO3S-PhSiF3···DMSO complex, amounting to −122 kJ/mol. The strong Si···O tetrel bond depends to a large extent on the charge transfer from the O lone pair into the empty p orbital of Si, although it has a dominant electrostatic character. For the PTS derivatives of NH2, OH, CHO and NO2, the hydrogen bonded complex is favorable to the tetrel bonded complex for the NH2 and OH derivatives, while the σ-hole interaction prefers the π-hole interaction for the CHO and NO2 derivatives.
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Affiliation(s)
- Xiulin An
- College of Life Science, Yantai University, Yantai 264005, China;
| | - Xin Yang
- The Laboratory of Theoretical and Computational Chemistry, School of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, China;
| | - Qingzhong Li
- The Laboratory of Theoretical and Computational Chemistry, School of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, China;
- Correspondence:
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Ryzhkova YE, Elinson MN, Maslov OI, Fakhrutdinov AN. Multicomponent Synthesis of 2-(2,4-Diamino-3-cyano-5 H-chromeno[2,3- b]pyridin-5-yl)malonic Acids in DMSO. Molecules 2021; 26:molecules26226839. [PMID: 34833930 PMCID: PMC8624304 DOI: 10.3390/molecules26226839] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Revised: 11/09/2021] [Accepted: 11/11/2021] [Indexed: 12/12/2022] Open
Abstract
Dimethyl sulfoxide is a widely used solvent in organic synthesis and in the pharmaceutical industry because of its low cost, stability, and low toxicity. Multicomponent reactions are an advanced approach that has become an efficient, economical, and eco-friendly substitute for the conventional sequential multi-step synthesis of various biologically active compounds. This approach was adopted for the synthesis of previously unknown 2-(2,4-diamino-3-cyano-5H-chromeno[2,3-b]pyridin-5-yl)malonic acids via transformation of salicylaldehydes, malononitrile dimer, and malonic acid. It was shown that the use of DMSO at room temperature makes it possible to synthesize previously unavailable compounds. The investigation of the reaction mechanism using 1H-NMR monitoring made it possible to confirm the proposed mechanism of the transformation. The structure of synthesized 5H-chromeno[2,3-b]pyridines was confirmed by 2D-NMR spectroscopy.
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Liu H, He GC, Zhao CY, Zhang XX, Ji DW, Hu YC, Chen QA. Redox-Divergent Construction of (Dihydro)thiophenes with DMSO. Angew Chem Int Ed Engl 2021; 60:24284-24291. [PMID: 34460141 DOI: 10.1002/anie.202109026] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Indexed: 11/10/2022]
Abstract
Thiophene-based rings are one of the most widely used building blocks for the synthesis of sulfur-containing molecules. Inspired by the redox diversity of these features in nature, we demonstrate herein a redox-divergent construction of dihydrothiophenes, thiophenes, and bromothiophenes from the respective readily available allylic alcohols, dimethyl sulfoxide (DMSO), and HBr. The redox-divergent selectivity could be manipulated mainly by controlling the dosage of DMSO and HBr. Mechanistic studies suggest that DMSO simultaneously acts as an oxidant and a sulfur donor. The synthetic potentials of the products as platform molecules were also demonstrated by various derivatizations, including the preparation of bioactive and functional molecules.
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Affiliation(s)
- Heng Liu
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Gu-Cheng He
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Chao-Yang Zhao
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xiang-Xin Zhang
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Ding-Wei Ji
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, China
| | - Yan-Cheng Hu
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, China
| | - Qing-An Chen
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
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Leeyaphan C, Suiwongsa B, Komesmuneeborirak P, Kiratiwongwan R, Wongdama S, Prasong W, Supcharoenkul S, Bunyaratavej S. Effectiveness and safety of topical amphotericin B in 30% dimethyl sulfoxide cream versus 30% dimethyl sulfoxide cream for nondermatophyte onychomycosis treatment: A pilot study. Indian J Dermatol Venereol Leprol 2021; 88:494-499. [PMID: 34877858 DOI: 10.25259/ijdvl_359_2021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Accepted: 07/01/2021] [Indexed: 11/04/2022]
Abstract
BACKGROUND Although topical amphotericin B cream is effective for the treatment of nondermatophyte mold onychomycosis in vitro, studies of its effectiveness and safety in vivo are limited. OBJECTIVES We studied the effectiveness and safety of topical 0.3% amphotericin B in 30% dimethyl sulfoxide cream (amphotericin B cream) in nondermatophyte mold onychomycosis using the vehicle cream 30% dimethyl sulfoxide cream as control. METHODS This randomized controlled study was conducted between January 2019 and November 2020. Patients diagnosed with nondermatophyte mold onychomycosis were randomly divided into two groups of ten patients each: one treated with amphotericin B cream and the other with the vehicle cream. Clinical and mycological cure as well as safety were evaluated. RESULTS Ten patients each treated with amphotericin B cream and the vehicle cream were included in the study, but only nine patients in the vehicle cream group were available for follow up. All the 19 evaluable patients had distal lateral subungual onychomycosis and the great toenails were affected in 18 (94.7%) of these. Mycological cure was achieved in 8 (80%) patients treated with amphotericin B cream and in 4 (44.4%) patients using the control (vehicle) cream. Clinical cure was achieved in 7 (70%) patients treated with amphotericin B cream, but only in 2 (22.2%) patients on the control cream. No adverse events were observed. LIMITATIONS The small sample size and the fact that PCR fungal identification that provides accurate identification of fungal species was not performed are limitations of our study. CONCLUSION Topical amphotericin B cream was both very effective and safe in the treatment nondermatophyte mold onychomycosis. The control (vehicle) cream containing 30% dimethyl sulfoxide also demonstrated some antifungal activity.
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Affiliation(s)
- Charussri Leeyaphan
- Department of Dermatology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Bordeesuda Suiwongsa
- Department of Pharmacy General Pharmaceutical Production Division, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Phojana Komesmuneeborirak
- Department of Pharmacy General Pharmaceutical Production Division, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Rungsima Kiratiwongwan
- Department of Dermatology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Supisara Wongdama
- Department of Dermatology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Waranyoo Prasong
- Department of Dermatology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Salisa Supcharoenkul
- Department of Dermatology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Sumanas Bunyaratavej
- Department of Dermatology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
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Gilfanova R, Auclair KM, Hui A, Norris PJ, Muench MO. Reduced dimethyl sulfoxide concentrations successfully cryopreserve human hematopoietic stem cells with multi-lineage long-term engraftment ability in mice. Cytotherapy 2021; 23:1053-1059. [PMID: 34454842 DOI: 10.1016/j.jcyt.2021.07.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Revised: 06/11/2021] [Accepted: 07/07/2021] [Indexed: 12/12/2022]
Abstract
BACKGROUND AIMS The cryopreservation of hematopoietic stem cells (HSCs) in dimethyl sulfoxide (DMSO) is used widely, but DMSO toxicity in transplant patients and the effects of DMSO on the normal function of cryopreserved cells are concerns. To address these issues, in vitro and clinical studies have explored using reduced concentrations of DMSO for cryopreservation. However, the effect of reducing DMSO concentration on the efficient cryopreservation of HSCs has not been directly measured. METHODS Cryopreservation of human bone marrow using 10%, 7.5% and 5% DMSO concentrations was examined. Cell counting, flow cytometry and colony assays were used to analyze different cell populations. The recovery of stem cells was enumerated using extreme limiting dilution analysis of long-term multi-lineage engraftment in immunodeficient mice. Four different methods of analyzing human engraftment were compared to ascertain stem cell engraftment: (i) engraftment of CD33+ myeloid, CD19+ B-lymphoid, CD235a+ erythroid and CD34+ progenitors; (ii) engraftment of the same four populations plus CD41+CD42b+ platelets; (iii) engraftment of CD34++CD133+ cells; and (iv) engraftment of CD34++CD38- cells. RESULTS Hematopoietic colony-forming, CD34++/+, CD34++CD133+ and CD34++CD38- cells were as well preserved with 5% DMSO as they were with the higher concentrations tested. The estimates of stem cell frequencies made in the xenogeneic transplant model did not show any significant detrimental effect of using lower concentrations of DMSO. Comparison of the different methods of gauging stem cell engraftment in mice led to different estimates of stem cell numbers, but overall, all measures found that reduced concentrations of DMSO supported the cryopreservation of HSCs. CONCLUSION Cryopreservation of HSCs in DMSO concentrations as low as 5% is effective.
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Affiliation(s)
- Renata Gilfanova
- Vitalant Research Institute, San Francisco, California, USA; Blood and Marrow Transplantation, Stanford University, Stanford, California, USA
| | | | - Alvin Hui
- Vitalant Research Institute, San Francisco, California, USA
| | - Philip J Norris
- Vitalant Research Institute, San Francisco, California, USA; Department of Laboratory Medicine, University of California, San Francisco, California, USA
| | - Marcus O Muench
- Vitalant Research Institute, San Francisco, California, USA; Department of Laboratory Medicine, University of California, San Francisco, California, USA.
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Park JK, Patel M, Piao Z, Park SJ, Jeong B. Size and Shape Control of Ice Crystals by Amphiphilic Block Copolymers and Their Implication in the Cryoprotection of Mesenchymal Stem Cells. ACS Appl Mater Interfaces 2021; 13:33969-33980. [PMID: 34275265 DOI: 10.1021/acsami.1c09933] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Precise control over the size and shape of ice crystals is a key factor to consider in designing antifreezing and cryoprotecting molecules for cryopreservation of cells. Here, we report that a poly(ethylene glycol)-poly(l-alanine) (PEG-PA) block copolymer exhibits excellent cryoprotecting properties for stem cells and antifreezing properties for water. As the molecular weight of PA increased from 500, 760, and 1750 Da (P1, P2, and P3) at the same PEG molecular weight of 5000 Da, the β-sheet content decreased and α-helix content increased. Comparing P2 (PEG-PA; 5000-760) and P4 (PEG-PA: 1000-750), β-sheets increased as the PEG block length decreased. The critical micelle concentration of the PEG-PA block copolymers was in a range of 0.5-3.0 mg/mL and was proportional to the hydrophobicity of the PEG-PA block copolymers. The P1, P2, and P3 self-assembled into spherical micelles, whereas P4 formed micelles with cylindrical morphology. The difference in the block copolymer structure affected ice recrystallization inhibition (IRI) activity and cryopreservation of cells. IRI activity was assayed via mean largest grain size (MLGS), and interactions between polymers and ice crystal surfaces were studied by dynamic ice-shaping studies. The MLGS decreased to 58 → 53 → 45 → 35 → 23% of that of PBS, as the polymer (PEG-PA 5000-500) concentration increased from 0.0 (PBS; control) → 1.0 → 5.0 → 10 → 30 → 50 mg/mL. The MLGS of PEG 5k solutions (negative control) decreased to 74 → 71 → 64 → 44 → 37% of that of PBS in the same concentration range. P3 and P4 with a longer hydrophobic PA block developed elongated ice crystals at above 30 mg/mL. The dynamic ice-shaping study exhibited that ice crystals became needle-shaped, as the hydrophobicity of the polymer increased as in P2-P4. The cell recovery in the P1 system after cryopreservation at -196 °C for 7 days was 87% of that of the dimethyl sulfoxide (DMSO) 10% system (positive control). The cell recovery was 48% for the P2 system and drastically decreased to less than 30% of that of the DMSO 10% system in the P3, P4, PEG 5k, PEG 1k, PVA 80H, and PVA 100H systems. Current studies suggest that IRI activity, round ice crystal shaping, and membrane stabilization activity of P1 cooperatively provide excellent cell recovery among the candidate systems. Recovered stem cells exhibited excellent proliferation and multilineage differentiation into osteocytes, chondrocytes, and adipocytes. To conclude, the PEG-PA (5000-500) block copolymer is suggested to be a promising antifreezing cryoprotectant for stem cells.
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Affiliation(s)
- Jin Kyung Park
- Department of Chemistry and Nanoscience, Ewha Womans University, 52 Ewhayeodae-gil, Seodaemun-gu, Seoul, Korea
| | - Madhumita Patel
- Department of Chemistry and Nanoscience, Ewha Womans University, 52 Ewhayeodae-gil, Seodaemun-gu, Seoul, Korea
| | - Zhengyu Piao
- Department of Chemistry and Nanoscience, Ewha Womans University, 52 Ewhayeodae-gil, Seodaemun-gu, Seoul, Korea
| | - So-Jung Park
- Department of Chemistry and Nanoscience, Ewha Womans University, 52 Ewhayeodae-gil, Seodaemun-gu, Seoul, Korea
| | - Byeongmoon Jeong
- Department of Chemistry and Nanoscience, Ewha Womans University, 52 Ewhayeodae-gil, Seodaemun-gu, Seoul, Korea
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Hoang C, Nguyen AK, Nguyen TQ, Fang W, Han B, Hoang BX, Tran HD. Application of Dimethyl Sulfoxide as a Therapeutic Agent and Drug Vehicle for Eye Diseases. J Ocul Pharmacol Ther 2021; 37:441-451. [PMID: 34314611 DOI: 10.1089/jop.2021.0043] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Abstract
Dimethyl sulfoxide (DMSO) is an amphipathic molecule widely used as a solvent for water-insoluble substances, cryopreserving, and cell-biological therapies. It has known properties as an inducer of cellular differentiation, a free radical scavenger, and a radioprotectant. In addition, DMSO is used for its various therapeutic and pharmaceutical properties, such as anti-inflammatory, local and systemic analgesic, antibacterial, antifungal, antiviral, and membrane penetration enhancement agents. DMSO treatment can be given orally, intravenously, or topically for a wide range of indications. The administration of DMSO exhibits favorable outcomes in human eye diseases with low to none observed ocular or systemic ocular toxicity. Nevertheless, DMSO is an essential and nonpatentable potential therapeutic agent that remains underexplored and ignored by pharmaceutical developers and ophthalmologists. This current review takes data from experimental and clinical studies that have been published to substantiate the potential therapeutic efficacy of DMSO and stimulate the research of its application in clinical ophthalmology. Given that DMSO is inexpensive, safe, and easily formulated into therapeutic medicinal products and conventional ophthalmological drugs, this compound should be further explored and studied in the treatment of a variety of acute and chronic ocular disorders.
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Affiliation(s)
- Cuong Hoang
- Department of Training and Social Relationship, National Ophthalmological Hospital, Hanoi, Vietnam
| | - Anh Kim Nguyen
- Inventive Medical Foundation, South El Monte, California, USA
| | | | - William Fang
- Western University of Health Sciences, Pomona, California, USA
| | - Bo Han
- Department of Surgery, Keck School of Medicine University of Southern California, Los Angeles, California, USA
| | - Ba X Hoang
- Department of Surgery, Keck School of Medicine University of Southern California, Los Angeles, California, USA
| | - Hau D Tran
- Department of Oncology, National Children Hospital, Hanoi, Vietnam
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Niles WD, Snyder EY. A Tool for Accurate Stoichiometric Composition of Cryopreservative Media for Fetal and Induced Pluripotent Stem Cell-Derived Human Neural Stem Cells. Curr Protoc 2021; 1:e123. [PMID: 33950578 DOI: 10.1002/cpz1.123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Fetal human neural stem cells (fhNSC) are of considerable interest as potential regenerative therapies for neuronal or glial degeneration or destruction resulting from genetic abnormalities, disease, or injury. Realization of this potential requires securing a supply of cells sufficient to meet the needs of transplantation, which are often tens to hundreds of millions of cells per dose. This challenge necessitates the establishment of safe and efficient cell banking protocols. Cryopreservation, involving the slow freezing or vitrification of cells, enables storage of fhNSC for prolonged periods, while maintaining their viability and multipotency required for clinical use. To optimize cryopreservation of fhNSC, attention has become focused on the composition of the medium used to effect cryopreservation by slow freezing/vitrification-i.e., the cryopreservative medium. The cryopreservative medium is typically specified as a dilution of a concentrated cryoprotectant, such as dimethylsulfoxide or glycerol, in cell culture medium that is often combined with serum or another source of necessary growth factors. The present work is devoted to a computational tool for determining the composition of a cryopreservative medium that can be combined with dissociated fhNSC resuspended in a certain volume of culture medium to achieve the criterion of stoichiometric dilution of cryoprotectant favorable to cell viability in the final mixture of cryopreservative medium and cells. © 2021 Wiley Periodicals LLC. Basic Protocol: Culture and passage of fhNSC, counting of enzymatically dissociated fhNSC, and quantitative formulation of cryomedium Alternate Protocol: Procedure when cell medium is not added to the cryomedium.
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Affiliation(s)
- Walter D Niles
- Center for Stem Cells and Regenerative Medicine, Sanford Burnham Prebys Medical Discovery Institute, Sanford Consortium for Regenerative Medicine, La Jolla, California
| | - Evan Y Snyder
- Center for Stem Cells and Regenerative Medicine, Sanford Burnham Prebys Medical Discovery Institute, Sanford Consortium for Regenerative Medicine, La Jolla, California
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Martín-Pérez T, Heredero-Bermejo I, Verdú-Expósito C, Pérez-Serrano J. In Vitro Evaluation of the Combination of Melaleuca alternifolia (Tea Tree) Oil and Dimethyl Sulfoxide (DMSO) against Trophozoites and Cysts of Acanthamoeba Strains. Oxygen Consumption Rate (OCR) Assay as a Method for Drug Screening. Pathogens 2021; 10:pathogens10040491. [PMID: 33921633 PMCID: PMC8073477 DOI: 10.3390/pathogens10040491] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2021] [Revised: 03/31/2021] [Accepted: 04/14/2021] [Indexed: 11/16/2022] Open
Abstract
Ameobae belonging to the genus Acanthamoeba are responsible for the human diseases Acanthamoeba keratitis (AK) and granulomatous amoebic encephalitis (GAE). The treatment of these illnesses is hampered by the existence of a resistance stage (cysts). In an attempt to add new agents that are effective against trophozoites and cysts, tea tree oil (TTO) and dimethyl sulfoxide (DMSO), separately and in combination, were tested In Vitro against two Acanthamoeba isolates, T3 and T4 genotypes. The oxygen consumption rate (OCR) assay was used as a drug screening method, which is to some extent useful in amoebicide drug screening; however, evaluation of lethal effects may be misleading when testing products that promote encystment. Trophozoite viability analysis showed that the effectiveness of the combination of both compounds is higher than when either compound is used alone. Therefore, the TTO alone or TTO + DMSO in combination were an amoebicide, but most of the amoebicidal activity in the combination’s treatments seemed to be caused mainly by the TTO effect. In fact, DMSO alone seems to be a non-amoebicide, triggering encystment. Regarding cytotoxicity, these compounds showed toxicity in human corneal epithelial cells (HCEpiC), even at low concentrations when tested in combination. In conclusion, the use of TTO and DMSO, in combination or alone, cannot be recommended as an alternative for AK treatment until more cytotoxicity and cyst adhesion tests are performed.
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Luptakova L, Dvorcakova S, Demcisakova Z, Belbahri L, Holovska K, Petrovova E. Dimethyl Sulfoxide: Morphological, Histological, and Molecular View on Developing Chicken Liver. Toxics 2021; 9:toxics9030055. [PMID: 33809222 PMCID: PMC8001493 DOI: 10.3390/toxics9030055] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Revised: 02/28/2021] [Accepted: 03/09/2021] [Indexed: 01/04/2023]
Abstract
Dimethyl sulfoxide (DMSO) is widely used as a solvent for small hydrophobic drug molecules. However, the safe volume allowing to avoid its embryotoxic effect has been poorly studied. In this study, we documented the effects of dimethyl sulfoxide (DMSO) in the developing chicken embryo at morphological, histological, and molecular levels. We focused on the developing chicken liver as the main organ involved in the process of detoxification. In our study, 100% DMSO was administered subgerminally onto the eggshell membrane (membrana papyracea) at various volumes (5, 10, 15, 20, 25, 30, 35, and 50 µL) on 4th embryonic day (ED). We focused on histopathological alterations of the liver structure, and noticed the overall impact of DMSO on developing chicken embryos (embryotoxicity, malformation). At the molecular level, we studied cytochrome P450 complex (CYP) isoform's activities in relation to changes of CYP1A5, CYP3A37, and CYP3A80 gene expression. Total embryotoxicity after application of different doses of DMSO on ED 4, and the embryo lethality increased with increasing DMSO amounts. Overall mortality after DMSO administration ranged below 33%. Mortality was increased with higher amounts of DMSO, mainly from 20 µL. The highest mortality was observed for the highest dose of DMSO over 35 µL. The results also showed a decrease in body weight with increased application volumes of DMSO. At the histological level, we observed mainly the presence of lipid droplets and dilated bile canaliculi and sinusoids in samples over the administration of 25 µL of DMSO. While these findings were not statistically significant, DMSO treatment caused a significant different up-regulation of mRNA expression in all studied genes. For CYP1A5, CYP3A37, and CYP3A80 DMSO volumes needed were 15 µL, 10 µL, and 20 µL, respectively. A significant down-regulation of all studied CYP isoform was detected after application of a DMSO dose of 5 µL. Regarding the morphological results, we can assume that the highest safe dose of DMSO without affecting chicken embryo development and its liver is up to 10 µL. This conclusion is corroborated with the presence of number of malformations and body weight reduction, which correlates with histological findings. Moreover, the gene expression results showed that even the lowest administered DMSO volume could affect hepatocytes at the molecular level causing down-regulation of cytochrome P450 complex (CYP1A5, CYP3A37, CYP3A80).
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Affiliation(s)
- Lenka Luptakova
- Department of Biology and Physiology, University of Veterinary Medicine and Pharmacy in Kosice, Komenskeho 73, 041 81 Kosice, Slovakia;
- Correspondence: ; Tel.: +421-918-919-686
| | - Simona Dvorcakova
- Department of Biology and Physiology, University of Veterinary Medicine and Pharmacy in Kosice, Komenskeho 73, 041 81 Kosice, Slovakia;
| | - Zuzana Demcisakova
- Department of Morphological Disciplines, University of Veterinary Medicine and Pharmacy in Kosice, Komenskeho 73, 041 81 Kosice, Slovakia; (Z.D.); (K.H.); (E.P.)
| | - Lassaad Belbahri
- Laboratory of Soil Biodiversity, Department of Biology, University of Neuchatel, 2000 Neuchatel, Switzerland;
| | - Katarina Holovska
- Department of Morphological Disciplines, University of Veterinary Medicine and Pharmacy in Kosice, Komenskeho 73, 041 81 Kosice, Slovakia; (Z.D.); (K.H.); (E.P.)
| | - Eva Petrovova
- Department of Morphological Disciplines, University of Veterinary Medicine and Pharmacy in Kosice, Komenskeho 73, 041 81 Kosice, Slovakia; (Z.D.); (K.H.); (E.P.)
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Otterbach A, Lamprecht A. Enhanced Skin Permeation of Estradiol by Dimethyl Sulfoxide Containing Transdermal Patches. Pharmaceutics 2021; 13:320. [PMID: 33804395 PMCID: PMC7999216 DOI: 10.3390/pharmaceutics13030320] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Revised: 02/24/2021] [Accepted: 02/24/2021] [Indexed: 11/16/2022] Open
Abstract
Dimethyl sulfoxide is a well-known and widely used dermal penetration enhancer. Its incorporation in transdermal patches would be highly desirable; however, due to its volatility this is extremely challenging. Here, we report on the feasibility of a dimethyl sulfoxide (DMSO) containing transdermal system containing estradiol as a model compound. Transdermal patches were prepared from duro-tak® 387-2510 containing various DMSO concentrations at different drying temperatures. The resulting patches were analyzed for DMSO content, estradiol and DMSO release, estradiol and DMSO permeation through excised porcine skin, and recrystallization during stability testing. Drying conditions in the range of 35° to 40° allowed a complete polymer solvents removal while retaining significant amounts of DMSO (≤10 mg/patch). Estradiol skin permeation increased 4-fold (Jss = 4.12 µg/cm-2·h-1) compared to DMSO-negative control (Jss = 1.1 ± 0.2 µg/cm-2·h-1). As additional benefit, estradiol recrystallization was inhibited by DMSO at even lowest solvent concentrations. Storage stability was limited to 6 months at 25 °C with a surprising discrepancy between DMSO content (significantly lower) and flux (not significantly different). Although the technical feasibility range is relatively narrow, such DMSO-containing matrix-type patches are able to significantly enhance drug permeation through the skin while ameliorating the product stability against recrystallization.
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Affiliation(s)
- Anna Otterbach
- Department of Pharmaceutics, Institute of Pharmacy, University of Bonn, Gerhard-Domagk-Str. 3, 53121 Bonn, Germany;
| | - Alf Lamprecht
- Department of Pharmaceutics, Institute of Pharmacy, University of Bonn, Gerhard-Domagk-Str. 3, 53121 Bonn, Germany;
- PEPITE EA4267, University of Burgundy/Franche-Comté, 25000 Besançon, France
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Yoshimura N, Homma Y, Tomoe H, Otsuka A, Kitta T, Masumori N, Akiyama Y, Niimi A, Mitsui T, Nanri M, Namima T, Takei M, Yamaguchi A, Sekiguchi Y, Kajiwara M, Kobayashi S, Ameda K, Ohashi Y, Sakamoto S, Muraki O, Shishido T, Kageyama S, Kokura K, Okazoe H, Yamanishi T, Watanabe T, Uno T, Ohinata A, Ueda T. Efficacy and safety of intravesical instillation of KRP-116D (50% dimethyl sulfoxide solution) for interstitial cystitis/bladder pain syndrome in Japanese patients: A multicenter, randomized, double-blind, placebo-controlled, clinical study. Int J Urol 2021; 28:545-553. [PMID: 33580603 PMCID: PMC8247858 DOI: 10.1111/iju.14505] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Accepted: 12/22/2020] [Indexed: 12/24/2022]
Abstract
Objective To evaluate the efficacy and safety of intravesical KRP‐116D, 50% dimethyl sulfoxide solution compared with placebo, in interstitial cystitis/bladder pain syndrome patients. Methods Japanese interstitial cystitis/bladder pain syndrome patients with an O’Leary‐Sant Interstitial Cystitis Symptom Index score of ≥9, who exhibited the bladder‐centric phenotype of interstitial cystitis/bladder pain syndrome diagnosed by cystoscopy and bladder‐derived pain, were enrolled. Patients were allocated to receive either KRP‐116D (n = 49) or placebo (n = 47). The study drug was intravesically administered every 2 weeks for 12 weeks. Results For the primary endpoint, the change in the mean O’Leary‐Sant Interstitial Cystitis Symptom Index score from baseline to week 12 was −5.2 in the KRP‐116D group and −3.4 in the placebo group. The estimated difference between the KRP‐116D and placebo groups was −1.8 (95% confidence interval −3.3, −0.3; P = 0.0188). Statistically significant improvements for KRP‐116D were also observed in the secondary endpoints including O’Leary‐Sant Interstitial Cystitis Problem Index score, micturition episodes/24 h, voided volume/micturition, maximum voided volume/micturition, numerical rating scale score for bladder pain, and global response assessment score. The adverse drug reactions were mild to moderate, and manageable. Conclusions This first randomized, double‐blind, placebo‐controlled trial shows that KRP‐116D improves symptoms, voiding parameters, and global response assessment, compared with placebo, and has a well‐tolerated safety profile in interstitial cystitis/bladder pain syndrome patients with the bladder‐centric phenotype.
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Affiliation(s)
- Naoki Yoshimura
- Department of Urology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA.,Department of Urology, Ueda Clinic, Kyoto, Japan
| | - Yukio Homma
- Japanese Red Cross Medical Center, Tokyo, Japan
| | - Hikaru Tomoe
- Department of Pelvic Reconstructive Surgery/Urology, Tokyo Women's Medical University Medical Center East, Tokyo, Japan
| | - Atsushi Otsuka
- Department of Urology, Hamamatsu University School of Medicine, Shizuoka, Japan
| | - Takeya Kitta
- Department of Renal and Genitourinary Surgery, Graduate School of Medical Science, Hokkaido University, Hokkaido, Japan
| | - Naoya Masumori
- Department of Urology, Sapporo Medical University School of Medicine, Hokkaido, Japan
| | - Yoshiyuki Akiyama
- Department of Urology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Aya Niimi
- Department of Urology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.,National Center for Global Health and Medicine, Tokyo, Japan
| | - Takahiko Mitsui
- Department of Urology, University of Yamanashi Graduate School of Medical Sciences, Yamanashi, Japan
| | | | | | - Mineo Takei
- Department of Urology, Harasanshin Hospital, Fukuoka, Japan
| | | | - Yuki Sekiguchi
- Female Urology, Women's Clinic LUNA Next Stage, Kanagawa, Japan
| | - Mitsuru Kajiwara
- Department of Urology, Hiroshima Prefectural Hospital, Hiroshima, Japan
| | | | - Kaname Ameda
- Hokkaido Memorial Hospital of Urology, Hokkaido, Japan
| | - Yozo Ohashi
- Department of Urology, Japan Community Healthcare Organization Ritsurin Hospital, Kagawa, Japan
| | | | - Osamu Muraki
- Department of Urology, Fujita General Hospital, Fukushima, Japan
| | - Toshihide Shishido
- Department of Urology, Tokyo Medical University Hachioji Medical Center, Tokyo, Japan
| | | | - Koji Kokura
- Department of Urology, Takarazuka City Hospital, Hyogo, Japan.,Kokura Urology Clinic, Hyogo, Japan
| | - Homare Okazoe
- Department of Urology, KKR Takamatsu Hospital, Kagawa, Japan
| | - Tomonori Yamanishi
- Department of Urology, Continence Center, Dokkyo Medical University, Tochigi, Japan
| | - Toyohiko Watanabe
- Department of Urology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Takashi Uno
- Clinical Development Center, Kyorin Pharmaceutical Co., Ltd., Tokyo, Japan
| | - Akira Ohinata
- Clinical Development Center, Kyorin Pharmaceutical Co., Ltd., Tokyo, Japan
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Guo Y, Gao F, Wang Q, Wang K, Pan S, Pan Z, Xu S, Li L, Zhao D. Differentiation of HL-60 cells in serum-free hematopoietic cell media enhances the production of neutrophil extracellular traps. Exp Ther Med 2021; 21:353. [PMID: 33732326 PMCID: PMC7903455 DOI: 10.3892/etm.2021.9784] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Accepted: 10/28/2020] [Indexed: 12/13/2022] Open
Abstract
Neutrophil extracellular traps (NETs) are web-like structures made of chromatin and have been identified to have a role in the host's immune defense. Differentiated human promyelocytic leukemia HL-60 cells (dHL-60) have been used to study the mechanisms of NETs formation, as neutrophils have a short lifespan that limits their use. However, dHL-60 cells are inefficient at generating NETs and therefore are not ideal replacements for neutrophils in studying of NET formation. In the present study, the optimal cell culture conditions and differentiation time that result in the most effective release of NETs from dHL-60 cells upon stimulation were determined. HL-60 cells were cultured in serum (FBS) or serum-free (X-VIVO) medium and differentiated using all-trans retinoic acid (ATRA) or dimethyl sulfoxide (DMSO). dHL-60 cells were stimulated with phorbol 12-myristate 13-acetate (PMA) or Ca2+ ionophore (CI). Cell differentiation and apoptosis, as well as the formation of reactive oxygen species (ROS) and citrullinated histone H3 (citH3) were analyzed using flow cytometry. NETs were visualized using fluorescence microscopy and NET quantification was performed using PicoGreen. Induction of HL-60 cells for five days produced the best results in terms of differentiation markers and cell viability. Both ATRA- and DMSO-induced dHL-60 cells were able to release NETs upon PMA and CI stimulation; dHL-60 cells in serum-free medium produced more NETs than those in serum-containing medium. DMSO-dHL-60 (X-VIVO) cells were most efficient at producing NETs and ROS upon stimulation with PMA, while ATRA-dHL-60 (X-VIVO) cells were most efficient at producing NETs and citH3 upon stimulation with CI. It was concluded that DMSO-dHL-60 (X-VIVO) may be a model for the study of ROS-high NETosis and ATRA-dHL-60 (X-VIVO) may be suitable for ROS-low NETosis.
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Affiliation(s)
- Yun Guo
- Department of Respiratory Medicine, The Affiliated Wuxi Children's Hospital of Nanjing Medical University, Wuxi, Jiangsu 214000, P.R. China
| | - Fei Gao
- Department of Intensive Care Unit, Wuxi People's Hospital Affiliated to Nanjing Medical University, Wuxi, Jiangsu 214000, P.R. China
| | - Qian Wang
- Department of Respiratory Medicine, The Affiliated Wuxi Children's Hospital of Nanjing Medical University, Wuxi, Jiangsu 214000, P.R. China
| | - Kang Wang
- Department of Laboratory, The Affiliated Wuxi Children's Hospital of Nanjing Medical University, Wuxi, Jiangsu 214000, P.R. China
| | - Shanshan Pan
- Department of Respiratory Medicine, The Affiliated Wuxi Children's Hospital of Nanjing Medical University, Wuxi, Jiangsu 214000, P.R. China
| | - Zhenzhen Pan
- Department of Respiratory Medicine, The Affiliated Wuxi Children's Hospital of Nanjing Medical University, Wuxi, Jiangsu 214000, P.R. China
| | - Shiyao Xu
- Department of Respiratory Medicine, The Affiliated Wuxi Children's Hospital of Nanjing Medical University, Wuxi, Jiangsu 214000, P.R. China
| | - Ling Li
- Department of Respiratory Medicine, The Affiliated Wuxi Children's Hospital of Nanjing Medical University, Wuxi, Jiangsu 214000, P.R. China
| | - Deyu Zhao
- Department of Respiratory Medicine, Children's Hospital of Nanjing Medical University, Nanjing, Jiangsu 210000, P.R. China
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