Results 41 to 50 of about 1,860 (145)

Time-dependent changes in oxidative stress biomarkers and activities of lysosomal and antioxidant enzymes in hepatic tissue of rainbow trout (Oncorhynchus mykiss Walbaum) following vaccination against Yersinia ruckeri

open access: yesFisheries & Aquatic Life, 2023
This study analyzed time-dependent effects of vaccination against Y. ruckeri on the oxidative mechanism underlying those effects by detecting relevant lipid peroxidation (2-thiobarbituric acid reactive substances, TBARS) and protein oxidation biomarkers [
Tkaczenko Halina   +4 more
doaj   +1 more source

An approach to malignant mammary phyllodes tumors detection [PDF]

open access: yesVojnosanitetski Pregled, 2009
Background/Aim. Mammary phyllodes tumors (MPT) are uncommon fibroepithelial (biphasic) neoplasms whose clinical behavior is difficult to predict on the basis of histological criteria only.
Ilić Ivan   +6 more
doaj   +1 more source

Characterization of serum and tissue oxytocinase and tissue oxytocin in the pregnant and non-pregnant mare

open access: yesScientific Reports, 2023
Oxytocin is a hormone with functions in: reproduction, maternal bonding, milk ejection, and feeding/social behavior, and is reported to be present in a variety of tissues. Our goal is to characterize oxytocin and leucyl and cystinyl aminopeptidase (LNPEP/
Mariana Diel de Amorim   +7 more
doaj   +1 more source

Determination of the species among mitis group of genus Streptococus using a molecular identification key [PDF]

open access: yesZbornik Matice Srpske za Prirodne Nauke, 2012
We analyzed the gene order conservation among the species of genus Streptococcus and based on this we developed a molecular identification key. The identification key was not made up based on the genes’ amino acid or nucleotide sequences but on the ...
Kanjo Ištvan L.
doaj   +1 more source

A leucine aminopeptidase is involved in kinetoplast DNA segregation in Trypanosoma brucei.

open access: yesPLoS Pathogens, 2017
The kinetoplast (k), the uniquely packaged mitochondrial DNA of trypanosomatid protists is formed by a catenated network of minicircles and maxicircles that divide and segregate once each cell cycle.
Priscila Peña-Diaz   +4 more
doaj   +1 more source

TrpM, a Small Protein Modulating Tryptophan Biosynthesis and Morpho-Physiological Differentiation in Streptomyces coelicolor A3(2). [PDF]

open access: yesPLoS ONE, 2016
In the model actinomycete Streptomyces coelicolor A3(2), small open reading frames encoding proteins with unknown functions were identified in several amino acid biosynthetic gene operons, such as SCO2038 (trpX) in the tryptophan trpCXBA locus.
Emilia Palazzotto   +9 more
doaj   +1 more source

Wildfire strengthens the relationship between soil biodiversity and ecosystem multifunctionality in subtropical forests

open access: yesFunctional Ecology, Volume 40, Issue 5, Page 1415-1427, May 2026.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Wildfires are disrupting and regenerating forces in nature that affect all ecosystem components. However, the impact of wildfires on soil multitrophic biodiversity and the resulting consequences for ecosystem multifunctionality (EMF) remain poorly understood.
Juan Zhou   +6 more
wiley   +1 more source

Mechanisms of Aristolochic Acid Resistance in Specialist Butterflies and Evolutionary Insights for Potential Protective Pathways

open access: yesAdvanced Science, Volume 13, Issue 19, 2 April 2026.
The study provides an extreme example of insect adaptation to highly toxic defenses of host plants, and investigates the complex strategies to resist carcinogenic aristolochic acids, including physical isolation, metabolic detoxification, and DNA repair.
Yang Luan   +20 more
wiley   +1 more source

Effects of melatonin and metformin in preventing lysosome-induced autophagy and oxidative stress in rat models of carcinogenesis and the impact of high-fat diet

open access: yesScientific Reports, 2022
Imbalanced glucose tolerance and insulin resistance remain important as high cancer risk factors. Metformin administration to diabetic patients may be associated with a reduced risk of malignancy.
Natalia Kurhaluk, Halyna Tkachenko
doaj   +1 more source

Microbial Resistance and Resilience to Short‐Term Drought Varies Among Grasslands Spanning a Broad Precipitation Gradient

open access: yesGrass and Forage Science, Volume 81, Issue 2, April-June 2026.
ABSTRACT Drought is increasing in severity and duration across the United States, particularly in arid and semi‐arid regions. Previous research has shown that drought has strong impacts in drier versus more mesic regions for aboveground productivity.
Leena L. Vilonen   +3 more
wiley   +1 more source

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