17,657 results match your criteria oxidation capacity

Glutathione Reductase-Sensitive Polymeric Micelles for Controlled Drug Delivery on Arthritic Diseases.

ACS Biomater Sci Eng 2021 Jun 23. Epub 2021 Jun 23.

3B's Research Group, I3Bs - Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, Barco 4805-017, Guimarães, Portugal.

Inflammation plays an essential role in arthritis development and progression. Despite the advances in the pharmaceutical field, current treatments still present low efficacy and severe side effects. Considering the high activity of the glutathione reductase (GR) enzyme in inflamed joints, a distinctive drug delivery system sensitive to the GR enzyme was designed for efficient drug delivery on arthritic diseases. Read More

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The effect of fermented and raw rapeseed meal on the growth performance, immune status and intestinal morphology of broiler chickens.

J Anim Physiol Anim Nutr (Berl) 2021 Jun 23. Epub 2021 Jun 23.

Key Laboratory of Feed Biotechnology of Agricultural Ministry and Rural Affairs, Feed Research Institute of Chinese Academy of Agricultural Science, Beijing, China.

We evaluated the effect of fermented and raw rapeseed meal (FRCM and RRSM) on the growth performance, carcass traits, serum biochemical indexes, immune status and intestinal morphology of broilers. A total of 420-day-old Arbor Acre male broilers were randomly assigned to a 1 + 2 × 3 factorial arrangement with one basal diet group, two rapeseed meal (RSM) varieties (FRCM and RRSM) and three addition levels (5%, 10% and 15%) for a duration of 42 days. FRSM significantly increased the ADG and ADFI of broilers during the 22-42 days and 1-42 days (p < 0. Read More

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Genome- and community-level interaction insights into the ecological role of archaea in rare earth element mine drainage in South China.

Water Res 2021 Jun 7;201:117331. Epub 2021 Jun 7.

School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou 510275, China; Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Sun Yat-sen University, Guangzhou 510275, China; Guangdong Provincial Engineering Research Center for Heavy Metal Contaminated Soil Remediation, Sun Yat-sen University, Guangzhou 510275, China; Guangdong Laboratory for Lingnan Modern Agriculture, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China. Electronic address:

Microbial communities play crucial roles in mine drainage generation and remediation. Despite the wide distribution of archaea in the mine ecosystem, their diversity and ecological roles remain less understood than bacteria. Here, we retrieved 56 archaeal metagenome-assembled genomes from a river impacted by rare earth element (REE) mining activities in South China. Read More

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A study of the bioactive potential of seven neglected and underutilized leaves consumed in Brazil.

Food Chem 2021 Jun 11;364:130350. Epub 2021 Jun 11.

Department of Food Science, Faculty of Food Engineering, University of Campinas, 13083-862 Campinas, SP, Brazil. Electronic address:

This study investigated the vitamin C content, total phenolic compounds (TPC), and the potential bioactivities (antioxidant, antiproliferative, antibacterial activities, and inhibition capacity against N-nitrosation) of seven neglected and underutilized species (NUS): culantro (Eryngium foetidum), false roselle (Hibiscus acetosella), roselle (Hibiscus sabdariffa), tree basil (Ocimum gratissimum), Barbados Gooseberry (Pereskia aculeata), purslane (Portulaca oleracea), and tannia (Xanthosoma sagittifolium). Phenolic-rich extracts were obtained by a sequential optimization strategy (Plackett-Burman and Central Composite Design). O. Read More

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Bonding of C fragments on metal nanoclusters: a search for methane conversion catalysts with swarm intelligence.

Phys Chem Chem Phys 2021 Jun 21. Epub 2021 Jun 21.

Institute for Materials Chemistry and Engineering and IRCCS, Kyushu University, Nishi-ku, Fukuoka 819-0395, Japan.

There is a need for a catalyst that can directly convert methane into useful substances. The use of Ni as a catalyst for the steam reforming of methane has led us to look at Ni nanoclusters as potential candidates for the direct conversion of methane. Fe, Co, Cu, and Zn nanoclusters are also focused on. Read More

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Comprehensive Insights Into O Changes During the COVID-19 From O Formation Regime and Atmospheric Oxidation Capacity.

Geophys Res Lett 2021 May 18;48(10):e2021GL093668. Epub 2021 May 18.

Department of Environmental Science and Engineering Fudan University Shanghai China.

Economic activities and the associated emissions have significantly declined during the 2019 novel coronavirus (COVID-19) pandemic, which has created a natural experiment to assess the impact of the emitted precursor control policy on ozone (O) pollution. In this study, we utilized comprehensive satellite, ground-level observations, and source-oriented chemical transport modeling to investigate the O variations during the COVID-19 pandemic in China. Here, we found that the significant elevated O in the North China Plain (40%) and Yangtze River Delta (35%) were mainly attributed to the enhanced atmospheric oxidation capacity (AOC) in these regions, associated with the meteorology and emission reduction during lockdown. Read More

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Changes in saliva analytes during pregnancy, farrowing and lactation in sows: A sialochemistry approach.

Vet J 2021 Jul 19;273:105679. Epub 2021 Apr 19.

Interdisciplinary Laboratory of Clinical Analysis of the University of Murcia (Interlab-UMU), Regional Campus of International Excellence 'Campus Mare Nostrum', University of Murcia, Campus de Espinardo nº16, 30100 Espinardo, Murcia, Spain.

Salivary biomarkers were studied in 17 healthy Large White sows from early gestation to the end of lactation. Saliva samples were obtained at 34 ± 3 days from insemination (G30), 24 ± 4 days before farrowing (G90), within the first 24 h after farrowing (L1) and at the end of a lactation period of 21 days (L21). The measurements in saliva included stress-related biomarkers (cortisol, chromogranin A, α-amylase, butyrylcholinesterase [BChE] and lipase [Lip]), inflammatory biomarkers (adenosine deaminase isoenzymes 1 [ADA1] and 2 [ADA2], and haptoglobin [Hp]) and oxidative stress biomarkers (cupric reducing antioxidant capacity, trolox equivalent antioxidant capacity, ferric reducing ability, uric acid, advanced oxidation protein products [AOPP] and hydrogen peroxide [HO]), as well as routine biochemistry analytes (aspartate aminotransferase [AST], alkaline phosphatase [ALP], γ-glutamine transferase [GGT], lactate dehydrogenase [LDH], creatine kinase [CK], urea, creatinine, triglycerides, lactate, calcium and phosphorus). Read More

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Evaluate the Therapeutic Effect of Allicin (L-cysteine) on Clinical Presentation and Prognosis in Patients with COVID-19.

Eur J Transl Myol 2021 Jun 18. Epub 2021 Jun 18.

Department of Emergency Medicine, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad.

The antiviral effectiveness of allicin (L-cysteine) has been shown by numerous studies in both levels of clinical and animals. The aim of this study was to evaluate the therapeutic effect of allicin (L-cysteine) on clinical presentation and prognosis. In the current study, 66 patients with COVID-19 based on clinical, radiological presentations and RT-PCR results, were enrolled in two groups of placebo and allicin. Read More

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Comparative proteomic analysis of seminal plasma proteins in relation to freezability of Dezhou donkey semen.

Anim Reprod Sci 2021 Jun 11;231:106794. Epub 2021 Jun 11.

National Engineering Research Center for Gelatin-based Traditional Chinese Medicine, Dong-E-E-Jiao Co. Ltd., No. 78, E-jiao Street, Dong'e Country, Shandong Province, 252201, China. Electronic address:

Variation in donkey sperm freezability (capacity to withstand freeze-thawing) between ejaculates is a limitation for sperm cryopreservation. Seminal plasma proteins are essential for sperm function and also related to individual differences in sperm freezability. A Tandem Mass Tag (TMT) peptide labeling combine with a LC-MS/MS approach was conducted to quantitatively identify the seminal plasma proteins differentially abundant in ejaculates with optimal freezability characteristics (GFE) compared with those with suboptimal freezability characteristics (PFE). Read More

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The neuroprotective role of morroniside against spinal cord injury in female rats.

Neurochem Int 2021 Jun 17:105105. Epub 2021 Jun 17.

Department of Clinical Laboratory, The First Affiliated Hospital of Bengbu Medical College, 287 Chang Huai Road, Bengbu, 233004, PR China; Anhui Key Laboratory of Tissue Transplantation, Bengbu Medical College, Bengbu, 233004, PR China. Electronic address:

Spinal cord injury (SCI) is a disabling condition that often leads to permanent neurological deficits without an effective treatment. Reactive oxygen species (ROS) produced during oxidative stress play a vital role in the pathogenesis following SCI. The antioxidant morroniside is the main active component of the Chinese medicine Cornus officinalis. Read More

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Longitudinal changes in fatty acid metabolism and in the mitochondrial protein import system in overconditioned and normal conditioned cows: A transcriptional study using microfluidic quantitative PCR.

J Dairy Sci 2021 Jun 16. Epub 2021 Jun 16.

Institute of Animal Science, Physiology Unit, University of Bonn, 53115 Bonn, Germany.

This study investigated the effect of body condition around calving on the hepatic mRNA expression of genes involved in fatty acid (FA) metabolism and mitochondrial protein import system of dairy cows during the transition period. Fifteen weeks before their anticipated calving date, 38 multiparous Holstein cows were selected based on their current and previous body condition scores (BCS) and allocated to either a high or a normal BCS group (19 cows each). They received different diets to reach targeted differences in BCS and backfat thickness (BFT) until dry-off. Read More

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Engineering triangular bimetallic metal-organic-frameworks derived hierarchical zinc-nickel-cobalt oxide nanosheet [email protected] graphene oxide-Ni foam as a binder-free electrode for ultra-high rate performance supercapacitors and methanol electro-oxidation.

J Colloid Interface Sci 2021 Jun 10;602:573-589. Epub 2021 Jun 10.

Carbon Composite Energy Nanomaterials Research Center, Woosuk University, Wanju, Chonbuk 55338, Republic of Korea; Department of Fire Disaster Prevention, Woosuk University, Wanju, Chonbuk 55338, Republic of Korea; Woosuk Institute of Smart Convergence Life Care (WSCLC), Woosuk University, Wanju, Chonbuk 55338, Republic of Korea. Electronic address:

The rigorous fabrication of electrode materials using upper-ranked porous precursor especially metal organic frameworks (MOFs) are challenging but appealing task to procure electrochemical energy storage and conversion system with altitudinous performance. Herein, we replenish the rational construction of atypical electrode of hollow Zn-Ni-Co-oxide (ZNCO) nanosheet arrays onto rGO garnished Ni foam (rGO/NF) via two step solution based method. Firstly, 2D Zn-Co-MOFs derived nanoleave arrays are prepared by co-precipitation method. Read More

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Adsorption of micropollutants onto realistic microplastics: Role of microplastic nature, size, age, and NOM fouling.

Chemosphere 2021 Jun 12;283:131085. Epub 2021 Jun 12.

Chemical Engineering Department, Universidad Autonoma de Madrid, Ctra. Colmenar Km 15, 28049 Madrid, Spain.

This work aims at evaluating the role of nature, size, age, and natural organic matter (NOM) fouling of realistic microplastics (MPs) on the adsorption of two persistent micropollutants (diclofenac (DCF) and metronidazole (MNZ)). For such goal, four representative polymer types (polystyrene (PS), polyethylene terephthalate (PET), polypropylene (PP) and high-density polyethylene (HDPE)) were tested. MPs were obtained by cryogenic milling of different commercial materials (disposable bottles, containers, and trays), and fully characterized (optical microscopic and SEM images, FTIR, elemental analysis, water contact angle and pH). Read More

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An intracellular assay for activity screening and characterization of glutathione-dependent oxidoreductases.

Free Radic Biol Med 2021 Jun 16. Epub 2021 Jun 16.

Institute of Biochemistry, Centre for Human and Molecular Biology (ZHMB), Saarland University, 66123 Saarbrücken, Germany. Electronic address:

The thioredoxin fold superfamily is highly diverse and contains many enzymatically active glutathione-dependent thiol-disulfide oxidoreductases, for example glutaredoxins and protein disulfide isomerases. However, many thioredoxin fold proteins remain completely uncharacterized, their cellular function is unknown, and it is unclear if they have a redox-dependent enzymatic activity with glutathione or not. Classically, investigation of enzymatic activity involved time-consuming in vitro characterization of recombinant proteins, limiting the capacity to study novel mechanisms and structure-function relationships. Read More

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Transcriptome analysis reveals the hepatoprotective mechanism of soybean meal peptides against alcohol-induced acute liver injury mice.

Food Chem Toxicol 2021 Jun 17;154:112353. Epub 2021 Jun 17.

Jilin Provincial Key Laboratory of Nutrition and Functional Food and College of Food Science and Engineering, Jilin University, Changchun, 130062, PR China. Electronic address:

This study aimed was to explore the hepatoprotective potential of soybean meal peptides (SPs) against alcohol-induced liver injury and investigate the underlying mechanisms through transcriptome analysis. The chemical antioxidant analysis of SPs exhibited potent ABTS radical scavenging capacity (11.94 ± 0. Read More

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Trimetallic synergy in dendritic intermetallic PtSnBi nanoalloys for promoting electrocatalytic alcohol oxidation.

J Colloid Interface Sci 2021 Jun 8;602:504-512. Epub 2021 Jun 8.

CAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Science, Beijing 100190, PR China; Center of Materials Science and Optoeletronics Engineering, University of Chinese Academy of Sciences, 100049, PR China. Electronic address:

Developing effective and robust novel electrocatalysts for direct alcohol fuel cells has been gaining much attention. However, the widely used Pt catalyst suffers from limitations including the sluggish kinetics, severe CO poisoning, and catalyst lost caused by aggregation and Ostwald ripening during alcohol oxidation reaction. Herein, dendritic intermetallic PtSnBi nanoalloys were synthesized via a facile hydrothermal approach with high electrocatalytic performance and enhanced CO resistance for methanol oxidation reaction (MOR) and ethanol oxidation reaction (EOR) owing to the synergism of the chosen three elements and unique three-dimensional morphology. Read More

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Production and antioxidant capacity of bioactive peptides from plant biomass to counteract lipid oxidation.

Curr Res Food Sci 2021 29;4:365-397. Epub 2021 May 29.

CIRAD, UMR QualiSud, Montpellier, F-34398, France.

Preventing lipid oxidation, especially with the polyunsaturated fat-based products, is a major concern in sectors as agri-food and cosmetic. Even though the efficiency of synthetic antioxidants has been recognized, both consumers and manufacturers are looking for more innovative, healthy and quality products while rejecting synthetic additives due to their concern about safety, along with their environmental impact issues. In this context, plant biomass, which have shown to be rich in compounds, have raised interest for the isolation of novel naturally occurring antioxidants. Read More

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The E3-ligase AoUBR1 in N-end rule pathway is involved in the vegetative growth, secretome, and trap formation in Arthrobotrys oligospora.

Fungal Biol 2021 Jul 23;125(7):532-540. Epub 2021 Feb 23.

State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, No. 3 Park 1, Beichen West Rd., Chaoyang District, Beijing, 100101, China; University of Chinese Academy of Sciences, Beijing, 100049, China. Electronic address:

The N-end rule pathway is a regulated protein degradation system. Arthrobotrys oligospora, a typical nematode-trapping fungus, switches its life strategies from saprophytism to carnivorism when capturing free-living nematodes by means of adhesive networks. In this study, a putative E3-ligase AoUBR1 involved in N-end rule pathway was characterized in A. Read More

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Specific microglial phagocytic phenotype and decrease of lipid oxidation in white matter areas during aging: Implications of different microenvironments.

Neurobiol Aging 2021 Apr 23;105:280-295. Epub 2021 Apr 23.

Institute of Neurosciences, Universitat Autònoma de Barcelona, Bellaterra, Barcelona, Spain; Department of Cell Biology, Physiology and Immunology, Universitat Autònoma de Barcelona, Bellaterra, Barcelona, Spain.

Physiological aging is characterized by an imbalance of pro-inflammatory and anti-inflammatory mediators leading to neuroinflammation. Microglial cells, which are highly regulated by the local microenvironment, undergo specific changes depending upon the brain area during aging. The aim of this study was to evaluate the influence of age over microglial cells along different brain areas and microenvironments. Read More

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Revealing sulfate role in empowering the sulfur-oxidizing capacity of Thioalkalivibrio versutus D301 for an enhanced desulfurization process.

Bioresour Technol 2021 Jun 4;337:125367. Epub 2021 Jun 4.

CAS Key Laboratory of Green Process and Engineering, State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, PR China; College of Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049, PR China; Chemistry and Chemical Engineering Guangdong Laboratory, Shantou 515031, PR China. Electronic address:

Haloalkaliphilic Thioalkalivibrio, a dominant genus for sulfide removal, has attracted growing interest. However, the bacterial biological response to this process's final product, sulfate, has not been well-studied. Here, thiosulfate oxidation and sulfur formation by T. Read More

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Self-Assembled Structure Evolution of MnFe Oxides for High Temperature Thermochemical Energy Storage.

Small 2021 Jun 17:e2101524. Epub 2021 Jun 17.

State Key Laboratory of Clean Energy Utilization, College of Energy Engineering, Zhejiang University, Hangzhou, Zhejiang, 310027, China.

Thermochemical energy storage (TCES) materials have emerged as a promising alternative to meet the high-temperature energy storage requirements of concentrated solar power plants. However, most of the energy storage materials are facing challenges in redox kinetics and cyclic stability. Iron-doped manganese oxide attracts raising attention due to its non-toxicity, low cost, and high energy capacity over 800 °C. Read More

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Successive Storage of Cations and Anions by Ligands of π-d Conjugated Coordination Polymers Enabling Robust Sodium-ion Batteries.

Angew Chem Int Ed Engl 2021 Jun 16. Epub 2021 Jun 16.

Tianjin University, College of Science, CHINA.

The oxidation of π-d conjugated coordination polymers (CCPs) accompanied with anion insertion has the merits of increasing the capacity and elevating the discharge voltages. However, the previous reports on this mechanism either required more investigations or showed low capacity and poor cyclablity. Herein, triphenylene catecholate-based two dimensional CCPs are constructed by employing inactive transition metal ions (Zn 2+ ) as nodes, forming Zn-HHTP. Read More

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Enhanced HCB removal using bacteria from mangrove as post-treatment after electrochemical oxidation using a laser-prepared Ti/RuO-IrO-TiO anode.

Chemosphere 2021 Sep 18;279:130875. Epub 2021 May 18.

Molecular Biology Laboratory, Research and Technology Institute - ITP, Aracaju, SE, Brazil; Industrial Biotechnology Graduation, Universidade Tiradentes, 49032-490, Aracaju, Brazil.

The environmental persistence of hexachlorobenzene (HCB) is a challenge that promotes studies for efficient treatment alternatives to minimize its environmental impact. Here, we evaluated the HCB removal by electrochemical, biological, and combined approaches. The electrochemical treatment of 4 μM HCB solutions was performed using a synthesized Ti/RuO-IrO-TiO anode, while the biological treatment using mangrove-isolated bacteria was at 24, 48, and 72 h. Read More

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September 2021

CO capturing methods: Chemical looping combustion (CLC) as a promising technique.

Sci Total Environ 2021 Sep 19;788:147850. Epub 2021 May 19.

Department of Chemistry, Wasit University, Kut, Wasit, Iraq.

This reports recent advances on CO capturing methods, focusing on chemical looping combustion (CLC) as a promising technology to achieve this goal. Generally, there are three main methods to capture CO resulting from fossil fuel combustion: post-combustion, oxy-combustion, and pre-combustion. In CLC, which is either classified as a pre-combustion method or as the fourth capturing method, the solid oxygen carrier provides the oxygen needed for combustion. Read More

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September 2021

Oxidation induced by dielectric barrier discharge (DBD) plasma treatment reduces IgG/IgE binding capacity and improves the functionality of glycinin.

Food Chem 2021 Jun 12;363:130300. Epub 2021 Jun 12.

College of Animal Science and Technology, Hunan Agricultural University, Changsha 410128, China. Electronic address:

The effect of dielectric barrier discharge (DBD) plasma treatment times from 2 to 5 min at 40 kV on IgG/IgE binding capacity and functionality of soybean glycinin was examined. A substantial reduction in the binding capacity (91.64% for IgG and 81. Read More

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Excellent electrochemical properties, Li ion dynamics and room temperature work function of Li2MnO3 cathode thin films.

Nanotechnology 2021 Jun 14. Epub 2021 Jun 14.

Material Measurement Laboratory, National Institute of Standards and Technology, Gaithersburg, MD, USA, 9314 cherry hill road, college park, Maryland, 20740, UNITED STATES.

We report on excellent electrochemical properties, Li ion diffusion coefficient and work function of Li2MnO3 thin films fabricated by RF sputtering technique. The X-ray diffraction study confirms the formation of Li2MnO3 thin film in layered structure. The X-ray photoelectron spectroscopy (XPS) study confirms the existence of Li and Mn ions and their appropriate oxidation states in Li2MnO3 thin film. Read More

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Superior removal of As(III) and As(V) from water with Mn-doped β-FeOOH nanospindles on carbon foam.

J Hazard Mater 2021 Jun 7;418:126347. Epub 2021 Jun 7.

Department of Civil and Environmental Engineering, University of California, Berkeley, CA 94720-1710, USA. Electronic address:

Arsenic pollution of water is one of the severest environmental challenges threatening human health. Iron-based nanomaterials have been demonstrated effective in arsenic removal. However, they generally suffer from low removal efficiency towards highly toxic As(III), loss of active sites owing to agglomeration, and poor reusability. Read More

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Photoperiod-induced alterations in biomarkers of oxidative stress and biochemical pathways in rats of different ages: Focus on individual physiological reactivity.

Chronobiol Int 2021 Jun 14:1-19. Epub 2021 Jun 14.

Department of Ecology and Nature Protection, T.G. Shevchenko National University "Chernihiv Collegium", Chernihiv, Ukraine.

Effects of photoperiodicity caused by both the age and individual physiological reactivity estimated by resistance to hypobaric hypoxia on the levels of lipid peroxidation, protein oxidation (aldehydic and ketonic derivatives), total antioxidant capacity, activities of antioxidant enzymes (superoxide dismutase, catalase, glutathione peroxidase, and glutathione reductase), and biochemical parameters of aerobic and anaerobic pathways in hepatic tissue depending on the blood melatonin level were studied. The study was carried out on 96 6- and 21-month-old male rats divided into hypoxia resistance groups (LR, low resistance, HR, high resistance). The analyses were conducted at four photoperiods: winter (January), spring (March), summer (July), and autumn (October). Read More

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The role of thrifty genes in the origin of alcoholism: A narrative review and hypothesis.

Alcohol Clin Exp Res 2021 Jun 12. Epub 2021 Jun 12.

Division of Nephrology, University of Colorado Anschutz Medical Center, Aurora, CO, USA.

In this narrative review, we present the hypothesis that key mutations in two genes, occurring 15 and 10 million years ago, were individually and then collectively adaptive for ancestral humans during periods of starvation, but are maladaptive in modern civilization (i.e., "thrifty genes"), with the consequence that these genes not only increase our risk today for obesity, but also for alcoholism. Read More

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Decorating S-doped Cu-La bimetallic oxides with UIO-66 to increase the As(III) adsorption capacity via synchronous oxidation and adsorption.

J Hazard Mater 2021 Jun 2;418:126238. Epub 2021 Jun 2.

College of Sciences, Nanjing Agricultural University, Nanjing 210095, PR China. Electronic address:

Arsenite (As(III)) is more toxic and difficult to remove than arsenate (As(V)). In this study, an S-doped Cu-La bimetallic oxide (S-CuLaO) decorated with metal-organic framework (MOF) composite ([email protected]) was synthesized and applied for the adsorption of As(III). The maximum adsorption capacity of As(III) by [email protected] was as high as 171 mg/g, which was much higher compared with other MOF compounds reported to date. Read More

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