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oxidative therapy

A R Godunova, A A Rakhimova, O I Leontyeva, I G Talipova, R M Yakhin, Sh G Musin
AIM: To study an effect of submaximal doses of mexidol on the dynamics of biochemical markers of inflammation and damage to brain tissue in the acute period of ischemic stroke. MATERIAL AND METHODS: A total of 60 patients admitted in the first 6h after disease onset with a verified ischemic stroke (7-9 points on the ASPECT scale) were enrolled in the study. Thirty patients in the study group received submaximal doses of mexidol: 750 mg infusion dropwise in 250 ml of 0...
2018: Zhurnal Nevrologii i Psikhiatrii Imeni S.S. Korsakova
Ghulam Hussain, Azhar Rasul, Haseeb Anwar, Nimra Aziz, Aroona Razzaq, Wei Wei, Muhammad Ali, Jiang Li, Xiaomeng Li
Neurodegenerative diseases are conventionally demarcated as disorders with selective loss of neurons. Conventional as well as newer molecules have been tested but they offer just symptomatic advantages along with abundant side effects. The discovery of more compelling molecules that can halt the pathology of these diseases will be considered as a miracle of present time. Several synthetic compounds are available but they may cause several other health issues. Therefore, natural molecules from the plants and other sources are being discovered to replace available medicines...
2018: International Journal of Biological Sciences
Zheng Wei, Xiteng Yin, Yu Cai, Wenguang Xu, Chuanhui Song, Yufeng Wang, Jingwei Zhang, An Kang, Zhiyong Wang, Wei Han
Background: Tumor microenvironment plays an important role in the chemoresistance of oral squamous cell carcinoma (OSCC). Hypoxia in the microenvironment is one of the important factors that contributes to OSCC chemoresistance; therefore overcoming hypoxia-mediated chemoresistance is one of the great challenges in clinical practice. Methods: In this study, we developed a drug delivery system based on Pt-loaded, polyethylene glycol-modified graphene quantum dots via chemical oxidation and covalent reaction...
2018: International Journal of Nanomedicine
Ashutosh N Aggarwal, Raman Kumari, Sandeep Grover
BACKGROUND: We sought to compare treatment satisfaction with inhaled medications among asthmatics using a metered-dose inhaler (MDI) or a dry-powder inhaler (DPI), and to correlate satisfaction with treatment adherence, pulmonary function, and airway inflammation. METHODS: Spirometry, fraction of expired nitric oxide (FENO ), and asthma control were assessed in 200 adult subjects with asthma (69 men, 131 women) using MDI or DPI. Treatment satisfaction with inhaled therapy was assessed with the Treatment Satisfaction Questionnaire for Medication (TSQM) in 4 domains: Effectiveness, Side Effects, Convenience, and Global Satisfaction...
March 20, 2018: Respiratory Care
Hossein Babaei, Fahimeh Forouzandeh, Leila Maghsoumi-Norouzabad, Hojat Allah Yousefimanesh, Maryam Ravanbakhsh, Ahmad Zare Javid
AIM: The aim of present study was to evaluate the effects of chicory leaf extract on serum oxidative stress markers, lipid profile, and periodontal status in patients with chronic periodontitis. METHODS: In this double-blind, randomized controlled clinical trial 40 patients with chronic periodontitis were allocated to intervention and control groups. The intervention group received a 1-gram chicory leaf methanolic extract capsule twice daily for 8 weeks. In the control group, participants received a placebo capsule (containing 1 gram wheat flour) twice daily for 8 weeks...
March 20, 2018: Journal of the American College of Nutrition
Dimitris Tsiachris, George Giannopoulos, Charis Kossyvakis, Spyridon Deftereos, Constantinos Tsioufis, Gerasimos Siasos, Evangelos Oikonomou, Konstantinos Gatzoulis, Dimitris Tousoulis, Christodoulos Stefanadis
Catheter ablation for rhythm control is recommended in specific patient populations with paroxysmal, persistent, or long-standing persistent atrial fibrillation. Pulmonary vein isolation is the cornerstone of the ablative therapy for atrial fibrillation. However, relapse is still common since the single procedure efficacy of atrial fibrillation ablation was estimated to be 60-80% in paroxysmal and 50-70% in persistent atrial fibrillation. It is important to identify predictors of successful atrial fibrillation patients ablation...
March 20, 2018: Current Medicinal Chemistry
Jenna L Gollihue, Samir P Patel, Alexander G Rabchevsky
Mitochondria are essential cellular organelles critical for generating adenosine triphosphate for cellular homeostasis, as well as various mechanisms that can lead to both necrosis and apoptosis. The field of "mitochondrial medicine" is emerging in which injury/disease states are targeted therapeutically at the level of the mitochondrion, including specific antioxidants, bioenergetic substrate additions, and membrane uncoupling agents. Consequently, novel mitochondrial transplantation strategies represent a potentially multifactorial therapy leading to increased adenosine triphosphate production, decreased oxidative stress, mitochondrial DNA replacement, improved bioenergetics and tissue sparing...
February 2018: Neural Regeneration Research
James D Weinstein
Despite decades of research, at present there is no curative therapy for Alzheimer's disease. Changes in the way new drugs are tested appear to be necessary. Three changes are presented here and will be discussed. The first change is that Alzheimer's disease must be considered a disease of four major pathological processes, not one. The four processes are: 1) vascular hypoperfusion of the brain with associated mitochondrial dysfunction, 2) destructive protein inclusions, 3) uncontrolled oxidative stress, and 4) proinflammatory immune processes secondary to microglial and astrocytic dysfunction in the brain...
February 2018: Neural Regeneration Research
Zhuang Liu, Han Lin, Menglong Zhao, Chen Dai, Shengjian Zhang, Weijun Peng, Yu Chen
Background : The emergence of two-dimensional MXenes has spurred their versatile applications in broad fields, but the exploring of novel MXene-based family members and their potential applications in theranostic nanomedicine (concurrent diagnostic imaging and therapy) have been rarely explored. In this work, we report the construction of a novel superparamagnetic MXene-based theranostic nanoplatform for efficient breast-cancer theranostics, which was based on intriguing tantalum carbide (Ta4 C3 ) MXene and its further rational surface-superparamagnetic iron-oxide functionalization (Ta4 C3 -IONP-SPs composite MXenes) for efficient breast-cancer theranostic...
2018: Theranostics
Lifen Xie, Xiaolan Feng, Yin Shi, Meng He, Pan Wang, Xiaobing Wang, Zeyuan Mi, Quanhong Liu, Kun Zhang
Inhibition of the increased aerobic glycolysis in cancer cells is a promising methodology for various malignant tumor therapies but is limited by systemic toxicity, at least in part. Recent studies suggest that dual restriction of glycolysis and mitochondrial function may overcome this issue. Sonodynamic therapy (SDT), a prospective therapeutic modality for cancers, has been reported to induce mitochondria-dependent cell damage. Here, we investigated the combined effect of SDT and 2-deoxyglucose (2DG), an anti-glycolytic agent, on breast cancer both in vitro and in vivo...
March 16, 2018: Ultrasound in Medicine & Biology
Jincheng Yang, Qingzhi Lv, Wei Wei, Zhengtao Yang, Jiajun Dong, Ruoshi Zhang, Qiming Kan, Zhonggui He, Youjun Xu
The efficacy of traditional chemotherapy often suffers from rapid clearance and off-target toxicity. Drug delivery systems and controlled release are applied to improve the therapeutic efficiencies of small-molecule drugs. In this work, two novel oxidative/reductive (Ox/Re) -sensitive and one non-sensitive Paclitaxel (PTX) prodrugs were synthesized with a maleimide group, which rapidly conjugates with albumin in vivo. Albumin serves as a good vehicle to deliver more prodrug to tumors due to the enhanced permeation and retention (EPR) effect...
November 2018: Drug Delivery
Seung Won Jun, Junyoung Kwon, Soo Kyung Chun, Hyun Ah Lee, Jaebeom Lee, Dae Youn Hwang, Chen-Yuan Dong, Chang-Seok Kim
Owing to its near infrared (NIR) absorption, graphene oxide (GO) is promising for both photothermal (PT) therapy and multiphoton (MP) imaging. Novel therapy/imaging modality switching is proposed here based on the selected excitation wavelength of femtosecond (FS) laser. GO-based destruction of cancer cells is demonstrated when the laser power of 800-nm-wavelength FS laser is increased above 7 mW. However, GO-based imaging is mainly monitored without damaging the sample when using 1200-nm wavelength FS laser in the same laser power range...
February 1, 2018: Biomedical Optics Express
Cecilia T Costiniuk, Vikram Mehraj, Jean-Pierre Routy, Christina de Castro, Natale Wasef, Mohammad-Ali Jenabian, Syim Salahuddin, Bertrand Lebouché, Joseph Cox, Jason Szabo, Marina Klein, Larry Lands, Adam J Shapiro
Introduction: Low levels of nasal NO have been associated with increased propensity to rhinosinusitis and respiratory tract infections. Our objective was to describe nasal NO levels in HIV-infected individuals versus healthy controls and determine possible risk factors for reduced nasal NO levels. Materials and Methods: HIV-infected individuals and healthy controls were recruited. Participants underwent nasal NO testing by standardized methods using a CLD88 chemiluminescence analyzer and completed the Sinonasal Outcome Test-20 (SNOT-20) on symptoms of rhinosinusitis...
2018: AIDS Research and Treatment
Fernando Francisco Borges Resende, Simoneide Souza Titze-de-Almeida, Ricardo Titze-de-Almeida
Astrocytic tumors, including astrocytomas and glioblastomas, are the most common type of primary brain tumors. Treatment for glioblastomas includes radiotherapy, chemotherapy with temozolomide (TMZ) and surgical ablation. Despite certain therapeutic advances, the survival time of patients is no longer than 12-14 months. Cancer cells overexpress the neuronal isoform of nitric oxide synthase (nNOS). In the present study, it was examined whether the nNOS enzyme serves a role in the damage of astrocytoma (U251MG and U138MG) and glioblastoma (U87MG) cells caused by TMZ...
April 2018: Oncology Letters
Raju Bishwakarma, Wei Zhang, Yu-Li Lin, Yong-Fang Kuo, Victor J Cardenas, Gulshan Sharma
Background: Chronic obstructive pulmonary disease (COPD) is associated with persistent systemic inflammation. Anti-inflammatory therapies have been shown to decrease acute exacerbations of COPD. The antidiabetic medication metformin decreases oxidative stress and inflammation and may benefit patients with COPD. We aimed at investigating the effect of metformin on health care utilizations in patients with coexisting COPD and diabetes mellitus (DM). Methods: We studied 5% Medicare beneficiaries with coexisting COPD and DM prescribed metformin or other antidiabetics during the period 2007-2010...
2018: International Journal of Chronic Obstructive Pulmonary Disease
Yoko Hirata, Chika Yamada, Yuki Ito, Shotaro Yamamoto, Haruna Nagase, Kentaro Oh-Hashi, Kazutoshi Kiuchi, Hiromi Suzuki, Makoto Sawada, Kyoji Furuta
The current medical and surgical therapies for neurodegenerative diseases such as Alzheimer's disease and Parkinson's disease offer symptomatic relief but do not provide a cure. Thus, small synthetic compounds that protect neuronal cells from degeneration are critically needed to prevent and treat these. Oxidative stress has been implicated in various pathophysiological conditions, including neurodegenerative diseases. In a search for neuroprotective agents against oxidative stress using the murine hippocampal HT22 cell line, we found a novel oxindole compound, GIF-0726-r, which prevented oxidative stress-induced cell death, including glutamate-induced oxytosis and erastin-induced ferroptosis...
March 15, 2018: Neuropharmacology
Yan He, Kun Jia, Lei Li, Qi Wang, Shuhui Zhang, Jiaming Du, Heng Du
Mitochondrial dysfunction is a featured pathology underlying synaptic injury and neuronal stress in Alzheimer's disease (AD). In recent years, the vicious cycle between mitochondrial deficits and intra-neuronal Redox state imbalance has received considerable attention. In this regard, it is of great interest to determine whether antioxidants could alleviate mitochondrial dysfunction in AD-related conditions. Salvianolic acid B (SalB), a bioactive component of alvia miltiorrhiza Bge, is a potent antioxidant...
March 15, 2018: Biochemical and Biophysical Research Communications
Nathan S Bryan
PURPOSE OF REVIEW: To reveal the mechanisms of nitric oxide (NO) production in humans and how lifestyle, drug therapy, and hygienic practices can decrease NO production. Furthermore, to show how functional nitric oxide nutrition can overcome these limitations to restore endogenous NO production and combat cardiovascular disease. RECENT FINDINGS: Research over the past decade has revealed that inorganic nitrate and nitrite found naturally in green leafy vegetables and other vegetables such as beets can provide the human body with a source of bioactive nitric oxide...
March 17, 2018: Current Atherosclerosis Reports
Sara Milanizadeh, Karrar Najm Najaf Zuwarali, Abbas Aliaghaei, Mohammad Reza Bigdeli
Brain ischemia is one of the most common causes of death and disability worldwide, which usually happens through diminished blood supply to the tissue. Cell therapy and treatments using trophic factors are some of the new methods to protect brain cells against damage. Specific properties of Sertoli cells (SCs) make them suitable for improving neurological disorders. This study is to evaluate possible neuroprotective effects of SCs transplantation on ischemic damage. Rats were divided into three experimental groups including sham, control, and SCs-treated group...
March 17, 2018: Journal of Molecular Neuroscience: MN
Sandrine Girerd, Lucie Tosca, Olivier Herault, Christine Vignon, Denis Biard, Djamel Aggoune, Fatima Dkhissi, Marie Laure Bonnet, Nathalie Sorel, Christophe Desterke, Annelise Bennaceur-Griscelli, Gerard Tachdjian, François Guilhot, Joelle Guilhot, Jean-Claude Chomel, Ali G Turhan
Manganese Superoxide dismutase 2 (SOD2) plays a crucial role in antioxidant defense but there are no data suggesting its role in genetic instability in CML. We evaluated the effects of SOD2 silencing in human UT7 cell line expressing either non-mutated or T315I-mutated BCR-ABL. Array-CGH experiments detected in BCR-ABL-expressing cells silenced for SOD2 a major genetic instability within several chromosomal loci, especially in regions carrying the glypican family (duplicated) and β-defensin genes (deleted)...
March 16, 2018: Biochemical and Biophysical Research Communications
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