Meanwhile, Cordyceps samples were used as controls for the analysis of various nucleosides including uridine, guanosine
, adenosine and cordycepin.
This study aims to determine the acute effect of caffeine (5 mg/kg body weight) on the response of some oxidative stress indicator [(total anti-oxidation capacity (TAC), MDA and serum total thiol molecules (TTM) and its DNA damage (8-hydroxy-2-deoxy guanosine
(8-OH-dG) levels)] in non-athletic males.
An L-arginine nitric oxide cyclic guanosine
monophosphate system exists in the uterus and inhibits contractility during pregnancy.
Effects of morphine administration on cerebellar guanosine
, bio-conjugation, nucleic acid synthesis
These medications ameliorate ED by inhibiting degradation of cyclic guanosine
monophosphate by PDE5, which increases blood flow to the penis during sexual stimulation.
The drug interferes with a signalling chain of the messenger cyclic guanosine
monophosphate (cGMP), which allows the inflow of blood and an erection.
The smooth muscle relaxation effect is produced through the activation of guanyalate cyclase and resulting increase in intracellular cyclic guanosine
Neopterin (6-D-erythro-hydroxy propyl pteridine) is a catabolic product of the purine nucleotide guanosine
The mechanism seems to involve l-arginine-nitric oxide (NO)-cyclic guanosine
monophosphate (cGMP) signaling pathway (Kulkarni 2007).
The abrupt global changes in gene expression associated with the stringent response are mainly triggered by the intracellular accumulation of two small molecules called guanosine
3'-diphosphate 5'-triphosphate and guanosine
3',5'-bis(diphosphate), collectively called (p)ppGpp (1).
The parasympathetic nerves are stimulated when man arouses sexually, leading to penile erection as result of release nitric oxide (NO) which works by activation of the enzyme guanylate cyclase responsible for converting guanosine
triphosphate (GTP) to 3'5' cyclic guanosine