Results 121 to 130 of about 162,062 (330)

Crosstalk between G-protein and Ca2+ pathways switches intracellular cAMP levels [PDF]

open access: yes, 2001
Cyclic adenosine monophosphate and cyclic guanosine monophosphate are universal intracellular messengers whose concentrations are regulated by molecular networks comprised of different isoforms of the synthases adenylate cyclase or guanylate cyclase and ...
A Dietz   +22 more
core   +1 more source

Differential gene expression in Chorthippus parallelus (Zetterstedt, 1821) (Orthoptera: Acrididae: Gomphocerinae) induced by Wolbachia infection

open access: yesInsect Science, EarlyView.
Distinct lineages of the grasshopper Chorthippus parallelus (Orthoptera: Acrididae) form a well‐known hybrid zone (HZ) in the Pyrenees mountain range; the Iberian endemism C. p. erythropus (Cpe) and the subspecies C. p. parallelus, (Cpp) widely distributed throughout the rest of Europe. Both subspecies differ in diverse traits, including the strains of
Patricia Jiménez‐Florido   +4 more
wiley   +1 more source

Nucleotides: Structure and Properties [PDF]

open access: yes, 2005
Nucleotides consist of a nitrogen-containing base, a five-carbon sugar, and one or more phosphate groups. Cells contain many types of nucleotides, which play a central role in a wide variety of cellular processes, including metabolic regulation and the ...
Bowater, RP
core   +1 more source

Klebsiella pneumoniae contributes to altered cytotoxicity of thiopurines in vitro: Possible implications of biotransformation and bacterial metabolism

open access: yesBritish Journal of Pharmacology, EarlyView.
Abstract Background and purpose Thiopurines are used in paediatric inflammatory bowel disease (IBD), but some patients do not respond. Because the gut microbiota influences drug efficacy and IBD‐patient microbiota presents increased bacterial abundance, we investigated the impact of candidate Enterobacteriaceae on drug cytotoxicity, metabolism and ...
Martina Franzin   +13 more
wiley   +1 more source

Glutaminase‐1 Mediated Glutaminolysis to Glutathione Synthesis Maintains Redox Homeostasis and Modulates Ferroptosis Sensitivity in Cancer Cells

open access: yesCell Proliferation, EarlyView.
GLS1‐mediated glutaminolysis supports GSH synthesis in cancer cells. GLS1 KO increases ROS, downregulates GPX4, and upregulates GPX1, making cells more sensitive to ferroptosis. Combining GLS1 or GPX1 inhibitors with a GPX4 inhibitor synergistically suppresses cancer growth.
Changsen Bai   +13 more
wiley   +1 more source

How the initiating ribosome copes with ppGpp to translate mRNAs.

open access: yesPLoS Biology, 2020
During host colonization, bacteria use the alarmones (p)ppGpp to reshape their proteome by acting pleiotropically on DNA, RNA, and protein synthesis. Here, we elucidate how the initiating ribosome senses the cellular pool of guanosine nucleotides and ...
Daria S Vinogradova   +7 more
doaj   +1 more source

Dopa-responsive dystonia and hyperprolactinaemia : a novel association in two sisters [PDF]

open access: yes, 2007
Dopa-Responsive Dystonia (DRD) is a rare hereditary condition of childhood-onset dystonia which responds dramatically to treatment with levodopa. It was first described in 1971 as a "hereditary progressive basal ganglia disease with marked diurnal ...
Cachia, Mario J., Galea, Janabel
core  

Inhibition and activation of interleukin 2 synthesis by direct modification of guanosine triphosphate-binding proteins.

open access: yesJournal of Immunology, 1988
To investigate whether guanosine triphosphate-binding proteins (G proteins) are involved in T cell activation, tests were made of the effect of pertussis toxin, cholera toxin, guanosine 5'-(3-O-thio)-triphosphate, and fluoride ions on interleukin 2 (IL-2)
C. Aussel   +5 more
semanticscholar   +1 more source

Toward molecular phenotyping of temporal lobe epilepsy by spatial omics

open access: yesEpilepsia, EarlyView.
Abstract Objective In temporal lobe epilepsy (TLE), detection of the epileptogenic zone predicts a good surgical outcome. When submitted to 18F‐fluorodeoxyglucose positron emission tomography (PET), some patients display lateralized, focal hypometabolism in the temporal lobe (PET+), whereas others appear normometabolic (PET−).
Isabeau Vermeulen   +33 more
wiley   +1 more source

Home - About - Disclaimer - Privacy