[HTML][HTML] Guanosine: a neuromodulator with therapeutic potential in brain disorders

D Lanznaster, T Dal-Cim, TCB Piermartiri… - Aging and …, 2016 - ncbi.nlm.nih.gov
Guanosine is a purine nucleoside with important functions in cell metabolism and a
protective role in response to degenerative diseases or injury. The past decade has seen …

PI3K/AKT/PTEN pathway as a target for Crohn's disease therapy

N Tokuhira, Y Kitagishi, M Suzuki… - International …, 2015 - spandidos-publications.com
The pathogenesis of inflammatory bowel disease (IBD), including Crohn's disease, is a
subject of increasing interest. Loss-of-function mutations in nucleotide‑binding …

[HTML][HTML] Guanosine protects human neuroblastoma SH-SY5Y cells against mitochondrial oxidative stress by inducing heme oxigenase-1 via PI3K/Akt/GSK-3β …

T Dal-Cim, S Molz, J Egea, E Parada, A Romero… - Neurochemistry …, 2012 - Elsevier
Mitochondrial perturbation and oxidative stress are key factors in neuronal vulnerability in
several neurodegenerative diseases or during brain ischemia. Here we have investigated …

Guanosine prevents oxidative damage and glutamate uptake impairment induced by oxygen/glucose deprivation in cortical astrocyte cultures: Involvement of A 1 and …

T Dal-Cim, GG Poluceno, D Lanznaster… - Purinergic …, 2019 - Springer
Glial cells are involved in multiple cerebral functions that profoundly influence brain tissue
viability during ischemia, and astrocytes are the main source of extracellular purines as …

Guanosine controls inflammatory pathways to afford neuroprotection of hippocampal slices under oxygen and glucose deprivation conditions

T Dal‐Cim, FK Ludka, WC Martins… - Journal of …, 2013 - Wiley Online Library
Guanosine (GUO) is an endogenous modulator of glutamatergic excitotoxicity and has been
shown to promote neuroprotection in in vivo and in vitro models of neurotoxicity. This study …

[HTML][HTML] Neuromodulatory effects of guanine-based purines in health and disease

CI Tasca, D Lanznaster, KA Oliveira… - Frontiers in cellular …, 2018 - frontiersin.org
The function of guanine-based purines (GBPs) is mostly attributed to the intracellular
modulation of heteromeric and monomeric G proteins. However, extracellular effects of …

Guanosine produces an antidepressant-like effect through the modulation of NMDA receptors, nitric oxide–cGMP and PI3K/mTOR pathways

LEB Bettio, MP Cunha, J Budni, FL Pazini… - Behavioural brain …, 2012 - Elsevier
Guanosine is an extracellular signaling molecule implicated in the modulation of
glutamatergic transmission and neuroprotection. The present study evaluated the …

Guanosine anxiolytic-like effect involves adenosinergic and glutamatergic neurotransmitter systems

RF Almeida, DD Comasseto, DB Ramos… - Molecular …, 2017 - Springer
Accumulating evidences indicate that endogenous modulators of excitatory synapses in the
mammalian brain are potential targets for treating neuropsychiatric disorders. Indeed …

Purine nucleosides in neuroregeneration and neuroprotection

FF Ribeiro, S Xapelli, C Miranda-Lourenco… - …, 2016 - Elsevier
In the present review, we stress the importance of the purine nucleosides, adenosine and
guanosine, in protecting the nervous system, both centrally and peripherally, via activation of …

Augmentation effect of ketamine by guanosine in the novelty-suppressed feeding test is dependent on mTOR signaling pathway

A Camargo, FL Pazini, JM Rosa, IAV Wolin… - Journal of psychiatric …, 2019 - Elsevier
The ketamine's potential for the treatment of refractory depression and anxiety has been
considered one the most important discoveries in the last years, however, repeated use of …