Results 81 to 90 of about 162,999 (382)

New Hybrid Hydrazinyl Thiazole Substituted Chromones: As Potential α-Amylase Inhibitors and Radical (DPPH & ABTS) Scavengers

open access: yesScientific Reports, 2017
Current research is based on the identification of novel inhibitors of α-amylase enzyme. For that purpose, new hybrid molecules of hydrazinyl thiazole substituted chromones 5–27 were synthesized by multi-step reaction and fully characterized by various ...
U. Salar   +7 more
semanticscholar   +1 more source

Nucleosomes in serum as a marker for cell death [PDF]

open access: yes, 2001
The concentration of nucleosomes is elevated in blood of patients with diseases which are associated with enhanced cell death. In order to detect these circulating nucleosomes, we used the Cell Death Detection-ELISA(Plus) (CDDE) from Roche Diagnostics ...
Anker P   +15 more
core   +1 more source

Formation of Laser‐Induced Periodic Surface Structures on Titanium Alloy Using a Picosecond Laser: Dependence on Fluence and Number of Laser Pulses

open access: yesAdvanced Materials Interfaces, EarlyView.
Laser treatment of materials is a versatile technique for generating ordered surface structures. Nevertheless, such structures are the result of laser parameters such as laser pulse fluence. We demonstrate that homogeneous low special frequency laser‐induced periodic surface structures are contingent on both single and effective fluence dose and can be
Iana Fomicheva   +6 more
wiley   +1 more source

Quantification of the Antioxidant Activity of Plant Extracts: Analysis of Sensitivity and Hierarchization Based on the Method Used

open access: yesAntioxidants, 2020
Plants have a large number of bioactive compounds with high antioxidant activity. Studies for the determination of the antioxidant activity of different plant species could contribute to revealing the value of these species as a source of new antioxidant
Natividad Chaves   +2 more
doaj   +1 more source

RIG‐I Mediated Neuron‐Specific IFN Type 1 Signaling in FUS‐ALS Induces Neurodegeneration and Offers New Biomarker‐Driven Individualized Treatment Options for (FUS‐)ALS

open access: yesAdvanced Science, EarlyView.
Using iPSC‐derived motoneurons and postmortem tissue from FUS‐ALS patients, it is demonstrated that increased mitochondrial transcription leads to elevated cytosolic double‐stranded RNA (dsRNA) levels. This aberrant accumulation activates a RIG‐I–dependent innate immune response leading to neurodegeneration, which is amenable for FDA‐ and EMA‐approved ...
Marcel Naumann   +26 more
wiley   +1 more source

Smart Hydrogel Doped by Metal–Organic Frameworks for Renewable Self‐Pumping Enzymatic Reactors

open access: yesAdvanced Science, EarlyView.
Renewable self‐pumping enzymatic reactors based on thermo‐stimulated cyclic contraction/expansion of metal‐organic frameworks‐doped hydrogel. Abstract The construction of high‐performance immobilized enzymes is vastly desired for green biotransformation.
Yuxi Zhu   +7 more
wiley   +1 more source

UHPLC-PDA-ESI-TOF/MS metabolic profiling and antioxidant capacity of arabica and robusta coffee silverskin: antioxidants vs phytotoxins [PDF]

open access: yes, 2017
A deeper knowledge of the chemical composition of coffee silverskin (CS) is needed due to the growing interest in its use as a food additive or an ingredient of dietary supplements.
Lavecchia, R.   +3 more
core   +1 more source

DEL‐1 is an Endogenous Senolytic Protein that Inhibits Senescence‐Associated Bone Loss

open access: yesAdvanced Science, EarlyView.
Senescent bone marrow stromal cells accumulate in the aging bone microenvironment, promoting bone degeneration. DEL‐1, an endogenous secreted protein, acts as a natural senolytic that selectively eliminates these cells. By engaging a β3 integrin/CD73/adenosine/p38 MAPK/BCL‐2 pathway, DEL‐1 counters aging‐related bone loss, revealing promising ...
Jong‐Hyung Lim   +11 more
wiley   +1 more source

Antioxidant potential of Hippophae rhamnoides L. extracts obtained with green extraction technique

open access: yesHerba Polonica, 2018
Introduction: Antioxidants, isolated from different plant parts, are widely used due to their ability to prevent the development of so-called oxidative stress.
Muzykiewicz Anna   +2 more
doaj   +1 more source

Comparison of ABTS, DPPH, Phosphomolybdenum Assays for Estimating Antioxidant Activity and Phenolic Compounds in Five Different Plant Extracts

open access: yesBulletin of University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca. Animal Science and Biotechnologies, 2018
Many plants and their constituents (carotenoids, flavonoids and other phenolic compounds), action to inhibit the free radical by the use of antioxidant activity, helping to a better efficiency of nutrients utilization.
A. Untea   +3 more
semanticscholar   +1 more source

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