Results 131 to 140 of about 270,142 (371)

Emergence of regular and complex calcium oscillations by inositol 1,4,5-trisphosphate signaling in astrocytes [PDF]

open access: yesarXiv, 2017
We use tools of bifurcation theory to characterize dynamics of astrocytic~IP$_3$ and~Ca$^{2+}$ for different~IP$_3$ regimes from a mathematical point of view. We do so following a bottom-up approach, starting from a compact, well-stirred astrocyte model to first identify characteristic~IP$_3$ pathways whereby~Ca$^{2+}$ (and~IP$_3$) dynamics "bifurcate",
arxiv  

Hepatic gluconeogenesis and regulatory mechanisms in lactating ruminants: A literature review

open access: yesAnimal Research and One Health, EarlyView.
phosphoenolpyruvate carboxy kinase, FBP1, and glucose‐6‐phosphatase are key rate‐limiting enzymes that determine the efficiency of gluconeogenesis. The main substrate for gluconeogenesis in the liver of ruminants is propionate, which provides more than 60% of the carbon source for gluconeogenesis.
Guoyan Wang   +5 more
wiley   +1 more source

Disruption of INOS, a Gene Encoding myo-Inositol Phosphate Synthase, Causes Male Sterility in Drosophila melanogaster

open access: yesG3: Genes, Genomes, Genetics, 2018
Inositol is a precursor for the phospholipid membrane component phosphatidylinositol (PI), involved in signal transduction pathways, endoplasmic reticulum stress, and osmoregulation.
Natasha A. M. Jackson   +3 more
doaj   +1 more source

The Calbindin-D28k binding site on inositol monophosphatase may allow inhibition independent of the lithium site of action [PDF]

open access: yes, 2011
Among numerous reported biochemical effects the lithium-inhibitable enzyme inositol-monophosphatase (IMPase) remains a viable target for lithium's therapeutic mechanism of action.
Amnon Hoffman   +8 more
core   +1 more source

Low RYR2 Level Relates to Poor Prognosis of Patients With Lung Adenocarcinoma by Promoting Tumor Cell Proliferation and Inhibiting Immune Cell Infiltration

open access: yesBiotechnology and Applied Biochemistry, EarlyView.
ABSTRACT Ryanodine receptor type 2 (RYR2) is a large calcium channel that has been identified as one of the most frequently mutated genes in lung adenocarcinoma (LUAD). Despite its potential significance, the role of RYR2 in LUAD remains poorly understood.
Tao Wang   +3 more
wiley   +1 more source

G protein-coupled receptor-mediated calcium signaling in astrocytes [PDF]

open access: yesarXiv, 2018
Astrocytes express a large variety of G~protein-coupled receptors (GPCRs) which mediate the transduction of extracellular signals into intracellular calcium responses. This transduction is provided by a complex network of biochemical reactions which mobilizes a wealth of possible calcium-mobilizing second messenger molecules.
arxiv  

Investigation of a broad‐spectrum micronutrient formulation as a possible precipitant of pharmacokinetic micronutrient–drug interactions

open access: yesBritish Journal of Clinical Pharmacology, EarlyView.
Aims Daily broad‐spectrum micronutrients are being used by the general public and formulations are receiving research interest in mental health settings. Despite concerns about combining medicines and broad‐spectrum micronutrients in mental health care, there have not been any formal evaluations of potential interactions.
Bess M. Kew   +7 more
wiley   +1 more source

Quorum sensing contributes to activated B cell homeostasis and to prevent autoimmunity [PDF]

open access: yesarXiv, 2012
Maintenance of plasma IgM levels is critical for immune system function and homeostasis in humans and mice. However, the mechanisms that control homeostasis of the activated IgM-secreting B cells are unknown. After adoptive transfer into immune-deficient hosts, B-lymphocytes expand poorly but fully reconstitute the pool of natural IgM-secreting cells ...
arxiv  

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