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Redox Report: Communications in Free Radical Research

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https://www.readbyqxmd.com/read/28657497/hesperidin-attenuates-inflammation-and-oxidative-damage-in-pleural-exudates-and-liver-of-rat-model-of-pleurisy
#1
Stephen Adeniyi Adefegha, Daniela Bitencourt Rosa Leal, Ayodeji Augustine Olabiyi, Ganiyu Oboh, Livia Gelain Castilhos
OBJECTIVES: This study investigated the potential anti-inflammatory effect of hesperidin against carrageenan induced pleurisy in rat model. METHODS: Twenty-four adult female Wistar rats (350 - 450g) were grouped as follows: Group I: rats were administered saline solution only (Normal control group); Group II: rats were administered saline solution (NaCl 0.9%) orally and injected with carrageenan (Inflammation control group); Group III: rats were administered hesperidin only (Hesperidin group); Group IV: rats were administered hesperidin orally and intrapleurally injected with 2% carrageenan (Inflammation treated with hesperidin group)...
June 28, 2017: Redox Report: Communications in Free Radical Research
https://www.readbyqxmd.com/read/28651456/phytochemical-treatments-target-kynurenine-pathway-induced-oxidative-stress
#2
K Parasram
OBJECTIVE: The objective of this paper was to link the phytochemical and metabolic research treating quinolinic acid induced oxidative stress in neurodegenerative disorders. METHODS: Quinolinic acid, a metabolite of the kynurenine pathway of tryptophan catabolism, plays a role in the oxidative stress associated with many neurological disorders and is used to simulate disorders such as Parkinson's disease. RESULTS: In these models, phytochemicals have been shown to reduce striatal lesion size, reduce inflammation and prevent lipid peroxidation caused by quinolinic acid...
June 26, 2017: Redox Report: Communications in Free Radical Research
https://www.readbyqxmd.com/read/28532341/pterostilbene-protects-against-uvb-induced-photo-damage-through-a-phosphatidylinositol-3-kinase-dependent-nrf2-are-pathway-in-human-keratinocytes
#3
Huaping Li, Na Jiang, Bihua Liang, Qing Liu, Erting Zhang, Liqian Peng, Huiyan Deng, Runxiang Li, Zhenjie Li, Huilan Zhu
OBJECTIVE: Ultraviolet B (UVB) irradiation is the initial etiological factor for various skin disorders, including erythema, sunburn, photoaging, and photocarcinogenesis. Pterostilbene (Pter) displayed remarkable antioxidant, anti-inflammatory, and anticarcinogenic activities. This study aimed to investigate the effective mechanism of Pter against UVB-induced photodamage in immortalized human keratinocytes. METHODS: Human keratinocytes were pretreated with Pter (5 and 10 μM) for 24 h prior to UVB irradiation (300 mJ/cm(2))...
May 22, 2017: Redox Report: Communications in Free Radical Research
https://www.readbyqxmd.com/read/28521618/markers-of-oxidative-nitrative-damage-of-plasma-proteins-correlated-with-edss-and-bdi-scores-in-patients-with-secondary-progressive-multiple-sclerosis
#4
Agnieszka Morel, Michał Bijak, Marta Niwald, Elżbieta Miller, Joanna Saluk
Objectives The objective of the present study was to evaluate oxidative/nitrative stress in the plasma of 50 patients suffering from the secondary progressive course of multiple sclerosis (MS), and to verify its correlation with physical and mental disability as assessed by the Expanded Disability Status Scale (EDSS), and the Beck Depression Inventory (BDI). Methods Oxidative and nitrative damage to proteins was determined by the level of carbonyl groups and 3-nitrotyrosine using ELISA test. Based on the reaction with Ellman's reagent, we estimated the concentration of oxidized thiol groups...
May 19, 2017: Redox Report: Communications in Free Radical Research
https://www.readbyqxmd.com/read/28514939/antioxidant-properties-of-drugs-used-in-type-2-diabetes-management-could-they-contribute-to-confound-or-conceal-effects-of-antioxidant-therapy
#5
Siu Wai Choi, Cyrus K Ho
OBJECTIVES: This is a narrative review, investigating the antioxidant properties of drugs used in the management of diabetes, and discusses whether these antioxidant effects contribute to, confound, or conceal the effects of antioxidant therapy. METHODS: A systematic search for articles reporting trials, or observational studies on the antioxidant effect of drugs used in the treatment of diabetes in humans or animals was performed using Web of Science, PubMed, and Ovid...
May 17, 2017: Redox Report: Communications in Free Radical Research
https://www.readbyqxmd.com/read/28498788/nutritional-status-energy-expenditure-and-protein-oxidative-stress-after-kidney-transplantation
#6
Larissa Vieira Marino, Elen Almeida Romão, Paula Garcia Chiarello
OBJECTIVES: To evaluate the association between nutritional status, resting energy expenditure (REE), and protein oxidative stress in patients after kidney transplantation (KT). METHODOLOGY: The study evaluated 35 patients transplanted at the time of hospital discharge and 3 months after regarding: body composition, REE (by indirect calorimetry), and injury factor (IF); serum urea, creatinine, glucose, albumin, total protein, advanced oxidation protein products (AOPP), vitamin C...
May 12, 2017: Redox Report: Communications in Free Radical Research
https://www.readbyqxmd.com/read/28482759/caffeine-prevents-high-intensity-exercise-induced-increase-in-enzymatic-antioxidant-and-na-k-atpase-activities-and-reduction-of-anxiolytic-like-behaviour-in-rats
#7
Juliano M Vieira, Fabiano B Carvalho, Jessié M Gutierres, Mayara S P Soares, Pathise S Oliveira, Maribel A Rubin, Vera M Morsch, Maria Rosa Schetinger, Roselia M Spanevello
OBJECTIVE: Here we investigated the impact of chronic high-intensity interval training (HIIT) and caffeine consumption on the activities of Na(+)-K(+)-ATPase and enzymes of the antioxidant system, as well as anxiolytic-like behaviour in the rat brain. METHODS: Animals were divided into groups: control, caffeine (4 mg/kg), caffeine (8 mg/kg), HIIT, HIIT plus caffeine (4 mg/kg) and HIIT plus caffeine (8 mg/kg). Rats were trained three times per week for 6 weeks, and caffeine was administered 30 minutes before training...
May 8, 2017: Redox Report: Communications in Free Radical Research
https://www.readbyqxmd.com/read/28475470/betulinic-acid-protects-against-n-nitrosodimethylamine-induced-redox-imbalance-in-testes-of-rats
#8
Gbadebo E Adeleke, Oluwatosin A Adaramoye
OBJECTIVES: N-nitrosodimethylamine (NDMA) is known to elicit carcinogenic activity in the liver and kidney of animals. There is a dearth of information of its effect in testis. This study evaluated the protective role of betulinic acid (BA) against NDMA-induced redox imbalance in testes of rats. METHODOLOGY: Twenty-four male rats were assigned into four groups and treated with normal saline, BA, NDMA and [BA+NDMA]. BA (25 mg/kg) was given for 14 days, while NDMA (5 mg/kg) was given on days 7 and 12...
May 5, 2017: Redox Report: Communications in Free Radical Research
https://www.readbyqxmd.com/read/28276289/natural-antioxidants-in-the-treatment-and-prevention-of-diabetic-nephropathy-a-potential-approach-that-warrants-clinical-trials
#9
REVIEW
Noori Al-Waili, Hamza Al-Waili, Thia Al-Waili, Khelod Salom
Diabetic nephropathy is the major cause of end-stage renal disease and effective and new therapeutic approaches are needed in diabetic nephropathy and chronic kidney diseases. Oxidative stress and inflammatory process are important factors contributing to kidney damage by increasing production of oxidants. KEAP1/Nrf2/ARE pathway regulates the transcription of many antioxidant genes and modulation of the pathway up regulates antioxidants. NFB controls the expression of genes involved in the inflammatory response...
May 2017: Redox Report: Communications in Free Radical Research
https://www.readbyqxmd.com/read/28245708/exposure-to-sodium-molybdate-results-in-mild-oxidative-stress-in-drosophila-melanogaster
#10
Natalia V Perkhulyn, Bohdana M Rovenko, Oleh V Lushchak, Janet M Storey, Kenneth B Storey, Volodymyr I Lushchak
OBJECTIVES: The study was conducted to assess the redox status of Drosophila flies upon oral intake of insulin-mimetic salt, sodium molybdate (Na2MoO4). METHODS: Oxidative stress parameters and activities of antioxidant and associated enzymes were analyzed in two-day-old D. melanogaster insects after exposure of larvae and newly eclosed adults to three molybdate levels (0.025, 0.5, or 10 mM) in the food. RESULTS: Molybdate increased content of low molecular mass thiols and activities of catalase, superoxide dismutase, glutathione-S-transferase, and glucose-6-phosphate dehydrogenase in males...
May 2017: Redox Report: Communications in Free Radical Research
https://www.readbyqxmd.com/read/28075321/effects-of-exercise-and-lifestyle-intervention-on-oxidative-stress-in-chronic-kidney-disease
#11
COMPARATIVE STUDY
David M Small, Kassia S Beetham, Erin J Howden, David R Briskey, David W Johnson, Nicole M Isbel, Glenda C Gobe, Jeff S Coombes
OBJECTIVES: Determine the effects of a 12-month exercise and lifestyle intervention program on changes in plasma biomarkers of oxidative stress in pre-dialysis chronic kidney disease (CKD) patients. METHODS: A total of 136 stage 3-4 CKD patients were randomized to receive standard nephrological care with (N = 72) or without (N = 64) a lifestyle and exercise intervention for 12 months. Plasma total F2-isoprostanes (IsoP), glutathione peroxidase (GPX) activity, total antioxidant capacity (TAC), anthropometric and biochemical data were collected at baseline and at 12 months...
May 2017: Redox Report: Communications in Free Radical Research
https://www.readbyqxmd.com/read/27320473/parameters-of-oxidative-stress-in-saliva-from-patients-with-aggressive-and-chronic-periodontitis
#12
COMPARATIVE STUDY
Andrea B Acquier, Alejandra K De Couto Pita, Lucila Busch, Gabriel A Sánchez
OBJECTIVES: Free radicals play an important role in the onset and progression of many diseases. The aim of this study was to investigate the contribution of oxidative stress in the pathology of aggressive (AgP) and chronic (CP) periodontitis and its relation with the clinical periodontal status. METHODS: Eighty subjects were divided into two groups: 20 patients with AgP and 20 patients with CP with their 20 corresponding matched controls, based on clinical attachment loss (CAL), probing pocket depth (PPD), and bleeding on probing (BOP)...
May 2017: Redox Report: Communications in Free Radical Research
https://www.readbyqxmd.com/read/28403686/swimming-training-induces-liver-adaptations-to-oxidative-stress-and-insulin-sensitivity-in-rats-submitted-to-high-fat-diet
#13
Aline Cruz Zacarias, Maria Andrea Barbosa, Renata Guerra-Sá, Uberdan Guilherme Mendes De Castro, Frank Silva Bezerra, Wanderson Geraldo de Lima, Leonardo M Cardoso, Robson Augusto Souza Dos Santos, Maria José Campagnole-Santos, Andréia Carvalho Alzamora
Oxidative stress, physical inactivity and high-fat (FAT) diets are associated with hepatic disorders such as metabolic syndrome (MS). The therapeutic effects of physical training (PT) were evaluated in rats with MS induced by FAT diet for 13 weeks, on oxidative stress and insulin signaling in the liver, during the last 6 weeks. FAT-sedentary (SED) rats increased body mass, retroperitoneal fat, mean arterial pressure (MAP) and heart rate (HR), and total cholesterol, serum alanine aminotransferase, glucose and insulin...
April 13, 2017: Redox Report: Communications in Free Radical Research
https://www.readbyqxmd.com/read/28393660/plasma-low-molecular-weight-thiol-disulphide-homeostasis-as-an-early-indicator-of-global-and-focal-cerebral-ischaemia
#14
Alexander Vladimirovich Ivanov, Valery Vasil'evich Alexandrin, Alexander Alexandrovich Paltsyn, Ksenya Alexandrovna Nikiforova, Edward Danielevich Virus, Boris Petrovich Luzyanin, Marina Yurievna Maksimova, Mikhail Aleksanrovich Piradov, Aslan Amirkhanovich Kubatiev
OBJECTIVE: Recent studies have shown that cerebral ischaemia causes not only local, but also systemic oxidative stress. This leads to oxidation of thiol-containing compounds, including low-molecular-weight thiols (cysteine, glutathione, homocysteine and others). Therefore, the aim of this work was to verify the hypothesis that the thiol/disulphide homeostasis of low-molecular-weight thiols is disturbed in the early stages of cerebral ischaemia. METHODS: Two experimental rat models of ischaemia were used: a global model of vascular ischaemia (clamping the common carotid arteries + haemorrhage) and focal ischaemia (middle cerebral artery occlusion)...
April 8, 2017: Redox Report: Communications in Free Radical Research
https://www.readbyqxmd.com/read/28366046/sodium-arsenite-induced-cardiovascular-and-renal-dysfunction-in-rat-via-oxidative-stress-and-protein-kinase-b-akt-pkb-signaling-pathway
#15
Ademola Adetokunbo Oyagbemi, Temidayo Olutayo Omobowale, Ebunoluwa Racheal Asenuga, Grace Onyeche Ochigbo, Abiola Olumuyiwa Adejumobi, Adeolu Alex Adedapo, Momoh Audu Yakubu
OBJECTIVES: Arsenic is a ubiquitous element that is widely distributed in the environment to which man and animals are exposed. Cardiovascular disease is one of the aftermaths of chronic arsenic exposure-related morbidity and mortality. This study sought to investigate the possibility of reversal from arsenic-induced cardio-renal toxicity following exposure and subsequent withdrawal. The study also seeks to understand the mechanism of action of this reversal. METHODS: Rats were orally exposed to sodium arsenite at 10, 20 and 40 mg/kg daily for 4 weeks followed by 4 weeks of withdrawal...
April 2, 2017: Redox Report: Communications in Free Radical Research
https://www.readbyqxmd.com/read/28320258/sex-differences-in-oxidative-stress-after-eccentric-and-concentric-exercise
#16
Magdalena Wiecek, Marcin Maciejczyk, Jadwiga Szymura, Zbigniew Szygula
OBJECTIVES: Comparison of redox balance changes in the blood of women and men as a result of submaximal eccentric (ECC) and concentric (CONC) efforts. METHODS: 10 women and 10 men performed three 45-minute submaximal treadmill runs at constant velocities (downhill run - ECC, uphill run - CONC and level run). Prior to the 45-minute exercises, after their completion and following 24 hours of recovery, the concentration of lactate, oxidized low-density lipoprotein (ox-LDL), 3-nitrotyrosine, uric acid (UA) and the white blood cell count (WBC), neutrophil (NEUT), lymphocyte (LYMPH) and monocyte content in the blood were determined...
March 20, 2017: Redox Report: Communications in Free Radical Research
https://www.readbyqxmd.com/read/28288548/upregulated-glutathione-transferase-omega-1-correlates-with-progression-of-urinary-bladder-carcinoma
#17
Tatjana Djukic, Tatjana Simic, Marija Pljesa-Ercegovac, Marija Matic, Sonja Suvakov, Vesna Coric, Dejan Dragicevic, Ana Savic-Radojevic
OBJECTIVES: Newly discovered glutathione transferase omega 1 (GSTO1-1) plays an important role in the glutathionylation cycle, a significant mechanism of protein function regulation. GSTO1-1 expression pattern has not been studied in transitional cell carcinoma (TCC), as yet. METHODS: A total of 56 TCC tumor and corresponding non-tumor specimens were investigated. Glutathione content and thioltransferase activity were measured spectrophotometrically. Protein-glutathione mixed disulfides were measured fluorimetrically...
March 13, 2017: Redox Report: Communications in Free Radical Research
https://www.readbyqxmd.com/read/28288542/the-role-of-the-saliva-antioxidant-barrier-to-reactive-oxygen-species-with-regard-to-caries-development
#18
A Jurczak, D Kościelniak, A Skalniak, M Papież, P Vyhouskaya, W Krzyściak
OBJECTIVES: The aim of this study was to evaluate the role of the antioxidant barrier in the saliva of children with caries, and its impact on the colonization of cariogenic bacteria. METHODS: This is a cross-sectional study of 81 children aged 1-5 years. Antioxidant levels and salivary bacterial profiles were measured. Patients were divided into two groups as follows: initial stage decay, termed non-cavitated (1-2 in International Caries Detection and Assessment System (ICDAS)), and extensive decay, termed cavitated lesions (5-6 in ICDAS)...
March 13, 2017: Redox Report: Communications in Free Radical Research
https://www.readbyqxmd.com/read/28288539/ischemia-modified-albumin-as-a-marker-of-vascular-dysfunction-and-subclinical-atherosclerosis-in-%C3%AE-thalassemia-major
#19
Amira Abdel Moneam Adly, Nayera Hazaa Khalil ElSherif, Eman Abdel Rahman Ismail, Yosra Abdelzaher Ibrahim, Gamal Niazi, Sara Hamed Elmetwally
BACKGROUND: Ischemia-modified albumin (IMA) is an altered type of serum albumin that forms under conditions of oxidative stress and an independent predictor of major adverse cardiovascular events. OBJECTIVES: To measure the levels of IMA in 45 children and adolescents with β-thalassemia major (β-TM) compared with 30 healthy controls and assess its relation to lipid peroxidation, vascular complications and subclinical atherosclerosis. METHODS: β-TM patients without symptoms of heart disease were studied focusing on transfusion history, chelation therapy, serum ferritin, malondialdehyde (MDA) and IMA levels...
March 13, 2017: Redox Report: Communications in Free Radical Research
https://www.readbyqxmd.com/read/28249551/gender-dependent-differences-of-mitochondrial-function-and-oxidative-stress-in-rat-skeletal-muscle-at-rest-and-after-exercise-training
#20
Firas Farhat, Aline Amérand, Bernard Simon, Nathalie Guegueniat, Christine Moisan
OBJECTIVE: This study investigated gender-dependent differences of mitochondrial function and sensitivity to in vitro ROS exposure in rat skeletal muscle at rest and after exercise training. METHODS: Wistar rats underwent running training for 6 weeks. In vitro measurements of hydroxyl radical production, oxygen consumption (under basal and maximal respiration conditions) and ATP production were made on permeabilized fibers. Mitochondrial function was examined after exposure and non-exposure to an in vitro generator system of reactive oxygen species (ROS)...
March 1, 2017: Redox Report: Communications in Free Radical Research
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