Results 71 to 80 of about 13,826 (249)

Characterization of iodothyronine sulfatase activities in human and rat liver and placenta [PDF]

open access: yes, 2002
In conditions associated with high serum iodothyronine sulfate concentrations, e.g. during fetal development, desulfation of these conjugates may be important in the regulation of thyroid hormone homeostasis. However, little is known
Coughtrie, M.W.   +6 more
core   +3 more sources

Unveiling the Hidden Drivers: How Vegetation Cover, Season and Forest Management Shape the Soil Microbial Community in Two Mediterranean Forest Ecosystems

open access: yesEnvironmental Microbiology Reports, Volume 18, Issue 2, April 2026.
Forest management affects microbial community composition depending on forest type. Vegetation type has the strongest effect on microbial composition, while management alters community structure without affecting function, highlighting the importance of vegetation in forest soil ecosystem dynamics.
Enrica Picariello, Flavia De Nicola
wiley   +1 more source

Long-Term Winter Cover Crops Alter the Soil Microbial Biomass and Enzyme Activities in Brazilian Oxisols

open access: yesAgronomy
The diversification of cover crops grown in soils with granulometric variability may potentially enhance microbial community and enzyme activities. Thus, the main goal was to evaluate the effect of autumn/winter cover crop sequences and cash crops in ...
Cezar Francisco Araujo-Junior   +3 more
doaj   +1 more source

A patient presenting a 22q13 deletion associated with an apparently balanced translocation t(16;22): an illustrative case in the investigation of patients with low ARSA activity

open access: yesGenetics and Molecular Biology, 2012
A 10-year-old speechless, mentally deficient male, with low arylsulfatase A (ARSA) activity, and presumably, methachromatic leukodystrophy, underwent genetic evaluation.
Osvaldo Artigalás   +7 more
doaj   +1 more source

Mycolicibacterium stellerae sp. nov., a rapidly growing scotochromogenic strain isolated from Stellera chamaejasme [PDF]

open access: yes, 2019
A polyphasic study was undertaken to establish the taxonomic provenance of a rapidly growing Mycolicibacterium strain, CECT 8783T, recovered from the plant Stellera chamaejasme L. in Yunnan Province, China.
Cortés-Albayay, Carlos   +7 more
core   +3 more sources

Effects of soil tillage and fertility management on acid phosphatase activity in corn (Zea mays L.) in two long‐term crop rotations

open access: yesAgrosystems, Geosciences &Environment, Volume 9, Issue 1, March 2026.
Abstract Enzyme activity studies provide an indicator of soil health related to soil management practices. As land area seeded to corn (Zea mays L.) and corn yields increase in this region, demands for plant nutrients also increase to support the high yields.
Almagul Malimbayeva   +4 more
wiley   +1 more source

Organic Matter Regulates Ammonia-Oxidizing Bacterial and Archaeal Communities in the Surface Sediments of Ctenopharyngodon idellus Aquaculture Ponds

open access: yesFrontiers in Microbiology, 2018
Ammonia-oxidizing bacteria (AOB) and archaea (AOA) play important roles in nitrogen removal in aquaculture ponds, but their distribution and the environmental factors that drive their distribution are largely unknown.
Lili Dai   +9 more
doaj   +1 more source

Oleoylethanolamide regulates intestinal stem cell activity and villus size via PPARα signaling pathway

open access: yesiMetaOmics, Volume 3, Issue 1, March 2026.
First use of a natural swine model with lipid metabolism to directly link lipid differences to a quantifiable intestinal villus height phenotype. Identified the phospholipid‐derived oleoylethanolamide, rather than canonical fatty acids, as the endogenous primary ligand that activates peroxisome proliferator‐activated receptors α (PPARα) to enlarge ...
Qianqian Wang   +9 more
wiley   +1 more source

EST analysis of gene expression in early cleavage-stage sea urchin embryos [PDF]

open access: yes, 1999
A set of 956 expressed sequence tags derived from 7-hour (mid-cleavage) sea urchin embryos was analyzed to assess biosynthetic functions and to illuminate the structure of the message population at this stage.
Britten, Roy J.   +6 more
core  

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