Results 31 to 40 of about 68,115 (310)

Protective Effect of Coconut Oil Meal Phenolic Antioxidants against Macromolecular Damage: In Vitro and In Vivo Study

open access: yesJournal of Chemistry, 2020
Coconut oil meal, a cheap by-product of coconut oil production, is a rich source of phenolic antioxidants. Many age-related diseases are caused by reactive oxygen species- (ROS-) induced damage to macromolecules such as lipids, proteins, and DNA.
A. N. Karunasiri   +4 more
doaj   +1 more source

Die Verteilung von hochmolekularen Stoffen und von Zellfragmenten in flüssigen Phasenpaaren zur Fraktionierung

open access: yesCHIMIA, 1972
The possibilities and the problems of fractionating high molecular substances and cell fragments with liquid phase pairs are discussed. Low molecular substances are now currently separated by countercurrent distribution.
P. von Tavel
doaj   +1 more source

Humic acid protein complexation [PDF]

open access: yes, 2008
Interactions of purified Aldrich humic acid (PAHA) with lysozyme (LSZ) are investigated. In solution LSZ is moderately positively and PAHA negatively charged at the investigated pH values.
Koopal, L.K.   +4 more
core   +2 more sources

Interplay Between Lipid Metabolism and Autophagy

open access: yesFrontiers in Cell and Developmental Biology, 2020
Autophagy is a self-eating process of using lysosomes to degrade macromolecular substances (e.g., proteins and organelles) that are damaged, degenerated, or aging. Lipid metabolism is the synthesis and degradation of lipids (e.g., triglycerides, steroids,
Yangchun Xie   +3 more
doaj   +1 more source

Chemical Modification of Polysaccharides: A Review of Synthetic Approaches, Biological Activity and the Structure–Activity Relationship

open access: yesMolecules, 2023
Natural polysaccharides are macromolecular substances with great potential owing to their wide biological activity and low toxicity. However, not all polysaccharides have significant pharmacodynamic activity; hence, appropriate chemical modification ...
Tianbo Liu   +7 more
doaj   +1 more source

Research progress on the mechanism of propofol in regulating autophagy [PDF]

open access: yesYixue xinzhi zazhi, 2023
Autophagy is a process in which intracellular lysosomes are involved in the degradation of damaged organelles or macromolecular substances. In the physiological state, eukaryotic cells maintain tissue homeostasis through a low degree of autophagy.
Xiao-Shuang ZHANG   +2 more
doaj   +1 more source

Chirality and the origin of atmospheric humic-like substances [PDF]

open access: yes, 2010
Aerosol water extracts and atmospheric humic-like substances (HULIS) obtained from PM2.5-fraction aerosol samples collected in a rural/continental background environment and in an urban environment in spring and summer, and at a tropical site that was ...
Maenhaut, Willy   +4 more
core   +3 more sources

Development of 89Zr Labelled Radiopharmaceuticals

open access: yesJournal of Isotopes, 2016
Positron emission tomography (PET) is the most advanced molecular imaging technology with the advantage of high sensitivity and quantity analysis. Molecule probe is the key factor for PET.
WANG Li-zhen;YANG Min
doaj   +1 more source

Structural ultrafast dynamics of macromolecules: diffraction of free DNA and effect of hydration [PDF]

open access: yes, 2009
Of special interest in molecular biology is the study of structural and conformational changes which are free of the additional effects of the environment.
Lin, Milo M.   +2 more
core   +1 more source

Advances in intranasal application of stem cells in the treatment of central nervous system diseases

open access: yesStem Cell Research & Therapy, 2021
Stem cells are characterized by their self-renewal and multipotency and have great potential in the therapy of various disorders. However, the blood–brain barrier (BBB) limits the application of stem cells in the therapy of neurological disorders ...
Yu-Ting Zhang   +5 more
doaj   +1 more source

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