Results 41 to 50 of about 1,531,875 (388)

Protonophore activity of short‐chain fatty acids induces their intracellular accumulation and acidification

FEBS Letters, EarlyView.
The protonated form of butyrate, as well as other short‐chain fatty acids (SCFAs), is membrane permeable. In acidic extracellular environments, this can lead to intracellular accumulation of SCFAs and cytosolic acidification. This phenomenon will be particularly relevant in acidic environments such as the large intestine or tumor microenvironments ...
Muwei Jiang, Frans Bianchi, Geert van den Bogaart   +2 more
wiley   +1 more source

The Effects of Tachykinin1 Gene Products on Prepubertal Dabry’s Sturgeon (Acipenser dabrynus) Pituitary Hormone Secretion and Gene Expression

Animals
As an ancient and endangered species unique to the Yangtze River in China, the wild population of the Dabry’s sturgeon has become scarce. Due to the long time till the first sexual maturity of Dabry’s sturgeon, the population of artificially bred Dabry’s
Kan Xiao, Hongtao Huang, Xuetao Shi, Tingting Shu, Xu Cheng, Hejun Du, Jing Yang   +6 more
doaj   +1 more source

Behavioural individuality in clonal fish arises despite near-identical rearing conditions

Nature Communications, 2017
Genetically-identical animals experiencing the same environmental conditions should develop, in theory, identical behavioral traits. However, Bierbachet al.
David Bierbach, Kate L. Laskowski, Max Wolf   +2 more
doaj   +1 more source

Field Guide to Nonindigenous Marine Fishes of Florida [PDF]

, 2009
The purpose of this field guide is to provide information on nonindigenous (i.e., non-native) fishes that have been observed in Florida’s marine waters. Introductions of non-native marine fishes into Florida’s waters could be intentional or unintentional,
Akins, Lad, Morris, Jr., James A., Schofield, Pamela J.   +2 more
core  

Fish and amphibians as bat predators [PDF]

, 2015
Although bats (Chiroptera) belong to the most diverse mammalian orders, study of diversity of their natural predators has been seriously neglected for a long time.
Mikula, Peter
core   +3 more sources

Dining in the Deep: The Feeding Ecology of Deep-Sea Fishes.

Annual Review of Marine Science, 2017
Deep-sea fishes inhabit ∼75% of the biosphere and are a critical part of deep-sea food webs. Diet analysis and more recent trophic biomarker approaches, such as stable isotopes and fatty-acid profiles, have enabled the description of feeding guilds and ...
J. Drazen, T. Sutton
semanticscholar   +1 more source

Modifications in FLAP's second cytosolic loop influence 5‐LOX interaction, inhibitor binding, and leukotriene formation

FEBS Letters, EarlyView.
The enzyme 5‐lipoxygenase (5‐LOX) catalyzes the first step in the biosynthesis of leukotrienes (LTs) involved in inflammatory pathophysiology. After cellular stimulation, 5‐LOX translocates to the nucleus, interacting with the 5‐LOX‐activating protein (FLAP) to form LTA4 from arachidonic acid (AA).
Erik Romp, Katharina Rataj, Stefanie König, Marcia E. Newcomer, Oliver Werz, Ulrike Garscha   +5 more
wiley   +1 more source

Molecular Identification and Functional Characterization of LC-PUFA Biosynthesis Elongase (elovl2) Gene in Chinese Sturgeon (Acipenser sinensis)

Animals
Elongases of very-long-chain fatty acids (Elovls) are critical rate-limiting enzymes that are involved in LC-PUFA biosynthesis through catalyzing the two-carbon elongation of a pre-existing fatty acyl chain. Thus far, several Elovls have been extensively
Haoze Ding, Xuetao Shi, Zhengyong Wen, Xin Zhu, Pei Chen, Yacheng Hu, Kan Xiao, Jing Yang, Tian Tian, Dezhi Zhang, Shuqi Wang, Yang Li   +11 more
doaj   +1 more source

Large mesopelagic fishes biomass and trophic efficiency in the open ocean

Nature Communications, 2014
With a current estimate of ~1,000 million tons, mesopelagic fishes likely dominate the world total fishes biomass. However, recent acoustic observations show that mesopelagic fishes biomass could be significantly larger than the current estimate. Here we
X. Irigoien, T. Klevjer, A. Røstad, U. Martínez, G. Boyra, J. L. Acuña, A. Bode, F. Echevarría, J. I. González-Gordillo, Santiago Hernández-León, S. Agustí, S. Agustí, D. L. Aksnes, C. Duarte, C. Duarte, S. Kaartvedt   +15 more
semanticscholar   +1 more source

In vivo evidence for glycyl radical insertion into a catalytically inactive variant of pyruvate formate‐lyase

FEBS Letters, EarlyView.
Dimeric pyruvate formate‐lyase cleaves pyruvate using a radical‐based mechanism. G734 serves as a radical storage location, and the radical is transferred to the catalytic C419 residue. Mutation of the C418‐C419 pair causes loss of enzyme activity, but does not impede radical introduction onto G734. Therefore, cis‐ but not trans‐radical transfer occurs
Michelle Kammel, A. F. Volker Wagner, R. Gary Sawers   +2 more
wiley   +1 more source