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https://www.readbyqxmd.com/read/29684827/differential-responses-of-two-egyptian-barley-hordeum-vulgare-l-cultivars-to-salt-stress
#1
Hayam I A Elsawy, Ahmad Mohammad M Mekawy, Mahmoud A Elhity, Sherif M Abdel-Dayem, Maha Nagy Abdelaziz, Dekoum V M Assaha, Akihiro Ueda, Hirofumi Saneoka
Although barley (Hordeum vulgare L.) is considered a salt tolerant crop species, productivity of barley is affected differently by ionic, osmotic, and oxidative stresses resulting from a salty rhizosphere. The current study was conducted to elucidate the mechanism of salt tolerance in two barley cultivars, Giza128 and Giza126. The two cultivars were exposed to 200 mM NaCl hydroponically for 12 days. Although both cultivars accumulated a large amount of Na+ in their leaves with similar concentrations, the growth of Giza128 was much better than that of Giza126, as measured by maintaining a higher dry weight, relative growth rate, leaf area, and plant height...
April 12, 2018: Plant Physiology and Biochemistry: PPB
https://www.readbyqxmd.com/read/29684771/coenzyme-q-10-supplementation-reduces-oxidative-stress-and-decreases-antioxidant-enzyme-activity-in-children-with-autism-spectrum-disorders
#2
Elham Mousavinejad, Mohammad Ali Ghaffari, Forough Riahi, Maryam Hajmohammadi, Zeinab Tiznobeyk, Masoumeh Mousavinejad
Antioxidants and oxidative stress can participate in pathobiochemical mechanisms of autism spectrum disorders (ASDs). The aim was to identify the effects of early CoQ10 supplementation on oxidative stress in children with ASDs. Ninety children with ASDs were included in this study, based on DSM-IV criteria and using Childhood Autism Rating Scale (CARS) scores. Concentrations of CoQ10 , MDA, total antioxidant status (TAS) assay, and antioxidant enzymes (superoxide dismutase or SOD and glutathione peroxidase or GPx) activity were determined in serum before and after 100 days of supportive therapy with CoQ10 at daily doses of 30 and 60 mg...
April 4, 2018: Psychiatry Research
https://www.readbyqxmd.com/read/29684493/evidence-of-similar-protective-effects-afforded-by-white-tea-and-its-active-component-egcg-on-oxidative-stress-mediated-hepatic-dysfunction-during-benzo-a-pyrene-induced-toxicity
#3
Sangeeta Rangi, Sunil Kumar Dhatwalia, Priti Bhardwaj, Manoj Kumar, D K Dhawan
The present study was conducted to unravel the comparative efficacy of White Tea (WT) and Epigallocatechin gallate (EGCG) in affording protection against benzo (a) pyrene (BaP) induced hepatotoxicity. The animals were randomly divided into six groups viz., normal control (NC), BaP, EGCG, WT, WT + BaP and EGCG + BaP treated. 50 mg/kg of BaP was given orally twice a week for 4 weeks. WT extract (1%) and EGCG (1% WT equivalent) were given on alternate days for 12 weeks (4 weeks prior, during and after BaP treatment)...
April 20, 2018: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/29682607/the-role-of-hsp40-conserved-motifs-in-the-response-to-cytotoxic-stress
#4
Samantha J Sojourner, Willie M Graham, Aurellia M Whitmore, Jana S Miles, Devon Freeny, Hernan Flores-Rozas
Doxorubicin, a highly effective therapeutic agent against several types of cancer, is associated with serious side-effects, particularly cardiotoxicity. In addition, drug resistance leads to unsuccessful outcomes in many patients. There are no current biomarkers to indicate doxorubicin treatment response in patients. To understand the mechanisms of toxicity of doxorubicin, a whole-genome sensitivity screen was performed in the yeast S. cerevisiae . A deletion mutant of the yeast DNAJ (YDJ1), a J-domain heat-shock protein 40 (HSP40) was among the most sensitive strains...
2018: Journal of Nature and Science
https://www.readbyqxmd.com/read/29682165/urinary-mitochondrial-dna-identifies-renal-dysfunction-and-mitochondrial-damage-in-sepsis-induced-acute-kidney-injury
#5
Qiongyuan Hu, Jianan Ren, Huajian Ren, Jie Wu, Xiuwen Wu, Song Liu, Gefei Wang, Guosheng Gu, Kun Guo, Jieshou Li
Background: Recent animal studies have shown that mitochondrial dysfunction initiates and accelerates renal injury in sepsis, but its role in sepsis remains unknown. Mitochondrial stress or dying cells can lead to fragmentation of the mitochondrial genome, which is considered a surrogate marker of mitochondrial dysfunction. Therefore, we evaluated the efficiency of urinary mitochondrial DNA (UmtDNA) as a marker of renal dysfunction during sepsis-induced acute kidney injury (AKI). Methods: We isolated DNA from plasma and urine of patients...
2018: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/29682152/thrombomodulin-as-a-new-marker-of-endothelial-dysfunction-in-chronic-kidney-disease-in-children
#6
Dorota Drożdż, Monika Łątka, Tomasz Drożdż, Krystyna Sztefko, Przemko Kwinta
Endothelial dysfunction (ED) and oxidative stress are potential new pathomechanisms of cardiovascular diseases in patients with chronic kidney disease (CKD). The aim of the study was to assess the association between endothelial dysfunction, oxidative stress biomarkers, and cardiovascular risk factors in children with CKD. Serum oxidized LDL (oxLDL), protein carbonyl group, urea, creatinine, cystatin C, thrombomodulin, asymmetric dimethylarginine (ADMA), von Willebrand factor, brain natriuretic peptide (BNP), lipids, high sensitivity C-reactive protein, intercellular adhesion molecule-1 levels, and albuminuria were measured...
2018: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/29681025/major-differences-in-neurooxidative-and-neuronitrosative-stress-pathways-between-major-depressive-disorder-and-types-i-and-ii-bipolar-disorder
#7
Michael Maes, Kamila Landucci Bonifacio, Nayara Rampazzo Morelli, Heber Odebrecht Vargas, Décio Sabbatini Barbosa, André F Carvalho, Sandra Odebrecht Vargas Nunes
Accumulating evidence indicates that oxidative and nitrosative stress (O&NS) pathways play a key role in the pathophysiology of bipolar disorder (BD) and major depressive disorder (MDD). However, only a handful of studies have directly compared alterations in O&NS pathways among patients with MDD and BD types I (BPI) and BPII. Thus, the current study compared superoxide dismutase (SOD1), lipid hydroperoxides (LOOH), catalase, nitric oxide metabolites (NOx), malondialdehyde (MDA), and advanced oxidation protein products (AOPP) between mood disorder patients in a clinically remitted state...
April 21, 2018: Molecular Neurobiology
https://www.readbyqxmd.com/read/29680435/comparison-of-two-exhaled-biomarkers-in-children-with-and-without-sleep-disordered-breathing
#8
Mario Barreto, Paolo Montuschi, Melania Evangelisti, Susanna Bonafoni, Manuela Cecili, Rugia Shohreh, Giuseppe Santini, Maria Pia Villa
OBJECTIVE: Airway oxidative stress and inflammation are likely to be involved in sleep disordered breathing (SDB) in children. We aimed to measure concentrations of 8-isoprostane (8-IsoP) in the exhaled breath condensate (EBC) and exhaled nitric oxide (FENO ) in patients with SBD and healthy children, in order to assess the relationship between these two biomarkers, disease severity, and overnight changes. METHODS: Patients with SDB (n = 46) and healthy controls (n = 20) aged 4...
May 2018: Sleep Medicine
https://www.readbyqxmd.com/read/29679453/simultaneous-analysis-of-multiple-urinary-biomarkers-for-the-evaluation-of-oxidative-stress-by-automated-on-line-in-tube-solid-phase-microextraction-coupled-with-negative-positive-ion-switching-mode-lc-ms-ms
#9
Akihiro Saito, Mariko Hamano, Hiroyuki Kataoka
This study described an automated on-line method for the simultaneous determination of 8-isoprostane, 8-hydroxy-2'-deoxyguanosine, and 3-nitro-l-tyrosine in human urine. The method involves in-tube solid-phase microextraction using a Carboxen 1006 PLOT capillary column as an extraction device, followed by liquid chromatography with tandem mass spectrometry using a CX column and detection in the negative/positive switching ion-mode by multiple reaction monitoring. Using their stable isotope-labeled internal standards, each of these oxidative stress biomarkers showed good linearity from 0...
April 20, 2018: Journal of Separation Science
https://www.readbyqxmd.com/read/29679204/efficacy-of-curcumin-for-age-associated-cognitive-decline-a-narrative-review-of-preclinical-and-clinical-studies
#10
REVIEW
Marjana Rahman Sarker, Susan F Franks
Processes such as aberrant redox signaling and chronic low-grade systemic inflammation have been reported to modulate age-associated pathologies such as cognitive impairment. Curcumin, the primary therapeutic component of the Indian spice, Turmeric (Curcuma longa), has long been known for its strong anti-inflammatory and antioxidant activity attributable to its unique molecular structure. Recently, an interest in this polyphenol as a cognitive therapeutic for the elderly has emerged. The purpose of this paper is to critically review preclinical and clinical studies that have evaluated the efficacy of curcumin in ameliorating and preventing age-associated cognitive decline and address the translational progress of preclinical to clinical efficacy...
April 21, 2018: GeroScience
https://www.readbyqxmd.com/read/29678717/a-tandem-mass-tag-tmt-proteomic-analysis-during-the-early-phase-of-experimental-pancreatitis-reveals-new-insights-in-the-disease-pathogenesis
#11
Violeta García-Hernández, Carmen Sánchez-Bernal, Domitille Schvartz, José J Calvo, Jean-Charles Sanchez, Jesús Sánchez-Yagüe
Changes in the protein expression occurring within the initiation phase of acute pancreatitis (AP) might be vital in the development of this complex disease. However, the exact mechanisms involved in the onset of AP remains elusive and most of our knowledge about the pathobiology of AP comes from animal models. We performed in a rat pancreatitic model a high-throughput shotgun proteomic profiling of the soluble and whole membrane fractions from the pancreas during the early phase of cerulein (Cer)-induced AP...
April 17, 2018: Journal of Proteomics
https://www.readbyqxmd.com/read/29678336/stress-myocardial-blood-flow-heterogeneity-is-a-positron-emission-tomography-biomarker-of-ventricular-arrhythmias-in-patients-with-hypertrophic-cardiomyopathy
#12
Dai-Yin Lu, Hulya Yalçin, Fatih Yalçin, Min Zhao, Sanjay Sivalokanathan, Ines Valenta, Abdel Tahari, Martin G Pomper, Theodore P Abraham, Thomas H Schindler, M Roselle Abraham
Patients with hypertrophic cardiomyopathy (HC) are at increased risk of sudden cardiac death. Abnormalities in myocardial blood flow (MBF) detected by positron emission tomography (PET) are common in HC, but a PET marker that identifies patients at risk of sudden cardiac death is lacking. We hypothesized that disparities in regional myocardial perfusion detected by PET would identify patients with HC at risk of ventricular arrhythmias. To test this hypothesis, we quantified global and regional MBFs by 13 NH3 -PET at rest and at stress, and developed a heterogeneity index to assess MBF heterogeneity in 133 symptomatic patients with HC...
February 6, 2018: American Journal of Cardiology
https://www.readbyqxmd.com/read/29677638/gestational-glucocorticoid-exposure-disrupts-glucose-homeostasis-that-is-accompanied-by-increased-endoglin-and-dpp-4-activity-instead-of-gsk-3-in-rats
#13
Olufunto O Badmus, Olugbenga S Michael, Saheed Rabiu, Lawrence A Olatunji
Gestational glucocorticoid (GC) treatment has been associated with cardiometabolic disorder (CMD) in offspring's in later life. Elevated dipeptidyl peptidase-4 (DPP-4) activity, endoglin and glycogen synthase kinase-3 (GSK-3) has also been implicated in the development of insulin resistance (IR) and/or vascular inflammation. We aimed to investigate the impact of GC exposure on glucose metabolism and the circulating levels of inflammatory biomarkers, DPP-4 activity and GSK-3 in pregnant rats. Pregnant Wistar rats received either vehicle or dexamethasone (DEX; 0...
April 13, 2018: Environmental Toxicology and Pharmacology
https://www.readbyqxmd.com/read/29674944/dunye-guanxinning-improves-acute-myocardial-ischemia-reperfusion-injury-by-inhibiting-neutrophil-infiltration-and-caspase-1-activity
#14
Q G Zhang, S R Wang, X M Chen, H N Guo, S Ling, J W Xu
Acute myocardial infarction is the most serious manifestation of cardiovascular disease, and it is a life-threatening condition. Dunye Guanxinning (DG) is a protective traditional Chinese patent herbal medicine with high clinical efficacy and suitable for the treatment of myocardial infarction. However, the mechanism through which it is beneficial is unclear. In this study, we hypothesized that DG improves acute myocardial ischemia-reperfusion injury by inhibiting neutrophil infiltration and caspase-1 activity...
2018: Mediators of Inflammation
https://www.readbyqxmd.com/read/29673379/erythropoietin-as-an-add-on-treatment-for-cognitive-side-effects-of-electroconvulsive-therapy-a-study-protocol-for-a-randomized-controlled-trial
#15
Lejla Sjanic Schmidt, Jeff Zarp Petersen, Maj Vinberg, Ida Hageman, Niels Vidiendal Olsen, Lars Vedel Kessing, Martin Balslev Jørgensen, Kamilla Woznica Miskowiak
BACKGROUND: Electroconvulsive therapy (ECT) is the most effective treatment for severe depression, but its use is impeded by its cognitive side effects. Novel treatments that can counteract these side effects may therefore improve current treatment strategies for depression. The present randomized trial investigates (1) whether short-term add-on treatment with erythropoietin (EPO) can reduce the cognitive side -effects of ECT and (2) whether such effects are long-lasting. Further, structural and functional magnetic resonance imaging (MRI) will be used to explore the neural underpinnings of such beneficial effects of EPO...
April 19, 2018: Trials
https://www.readbyqxmd.com/read/29672210/prognostic-utility-of-stress-testing-and-cardiac-biomarkers-in-menopausal-women-at-low-to-intermediate-risk-for-coronary-artery-disease-smart-study-5-year-outcome
#16
Sahar S Abdelmoneim, Caroline A Ball, Francesca Mantovani, Mary E Hagen, Susan Eifert-Rain, Susan Wilansky, Ramon Castello, Patricia A Pellikka, Patricia J M Best, Sharon L Mulvagh
BACKGROUND: In women with low to intermediate risk of coronary artery disease (CAD), prognostic detection strategies have been controversial. We present the follow-up data of the SMART trial in peri/postmenopausal women at low to intermediate risk of CAD. OBJECTIVES: To determine the value of contrast stress echocardiography (CSE), stress electrocardiogram (sECG), and serum biomarkers for prediction of cardiovascular events (CE) in peri/postmenopausal women at low to intermediate risk of CAD...
April 19, 2018: Journal of Women's Health
https://www.readbyqxmd.com/read/29671165/polymorphisms-in-park2-and-mrpl37-are-associated-with-higher-risk-of-recurrent-venous-thromboembolism-in-a-sex-specific-manner
#17
Kristina Sundquist, Abrar Ahmad, Peter J Svensson, Bengt Zöller, Jan Sundquist, Ashfaque A Memon
Recent studies indicate that mitochondrial DNA (mtDNA) dysfunction is a biomarker of oxidative stress and can predict the risk of cardiovascular diseases (CVDs). Genetic variants in PARK2 (rs4708928) and MRPL37 (rs10888838) genes have been shown to be associated with altered levels of mtDNA in a sex-specific manner. However, the role of these genetic variants in risk assessment of recurrent venous thromboembolism (VTE) is unknown. We investigated the role of these polymorphisms in VTE recurrence in patients from the Malmö thrombophilia study (MATS, n = 1465), followed for ~ 10 years...
April 18, 2018: Journal of Thrombosis and Thrombolysis
https://www.readbyqxmd.com/read/29671021/protective-effect-of-vinpocetine-against-neurotoxicity-of-manganese-in-adult-male-rats
#18
Rania I Nadeem, Hebatalla I Ahmed, Bahia M El-Sayeh
Manganese (Mn) is required for many essential biological processes as well as in the development and functioning of the brain. Extensive accumulation of Mn in the brain may cause central nervous system dysfunction known as manganism, a motor disorder associated with cognitive and neuropsychiatric deficits similar to parkinsonism. Vinpocetine, a synthetic derivative of the alkaloid vincamine, is used to improve the cognitive function in cerebrovascular diseases. It possesses antioxidant and antiinflammatory properties...
April 18, 2018: Naunyn-Schmiedeberg's Archives of Pharmacology
https://www.readbyqxmd.com/read/29670896/short-term-treatment-with-esmolol-reverses-left-ventricular-hypertrophy-in-adult-spontaneously-hypertensive-rats-via-inhibition-of-akt-nf-%C3%AE%C2%BA-b-and-nfatc4
#19
Begoña Quintana-Villamandos, David A Goukassian, Sharath P Sasi, Emilio Delgado-Baeza
Our group has previously demonstrated that short-term treatment with esmolol reduces left ventricular hypertrophy (LVH) in spontaneously hypertensive rats (SHRs). The present study aimed to assess the molecular mechanisms related to this effect. Fourteen-month-old male SHRs were treated intravenously with saline as vehicle (SHR) or esmolol (SHR-E) (300  μ g/kg/min). Age-matched vehicle-treated male Wistar-Kyoto (WKY) rats served as controls. After 48 hours of treatment, the hearts were harvested and left ventricular tissue was separated and processed for Western blot analysis to determine the levels of Akt, NF- κ B, NFATc4, Creb1, Serca2a, Erk1/2, and Sapk/Jnk...
2018: BioMed Research International
https://www.readbyqxmd.com/read/29670683/nrf2-mediated-metabolic-reprogramming-in-cancer
#20
REVIEW
Yan-Yang Wang, Juan Chen, Xiao-Ming Liu, Ren Zhao, Hong Zhe
Metabolic reprogramming is one of the hallmarks of cancer. Nrf2 pathway is one of the critical signaling cascades involved in cell defense and survival against oxidative stress. The significance of Nrf2 in cancer metabolism begins to be recognized. In this minireview, we focus on the Nrf2-mediated cancer metabolic reprogramming and intend to highlight the role of Nrf2 in the regulation of malignant transformation, cancer proliferation, and the development of treatment resistance via metabolic adaptations. We hope for the development of noninvasive biomarkers and novel therapeutic approaches for cancer based on Nrf2-directed cancer metabolic reprogramming in the near future...
2018: Oxidative Medicine and Cellular Longevity
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