Astrocytes can tolerate longer periods of oxygen and glucose deprivation (OGD) as compared to neurons. The reasons for this reduced vulnerability are not well understood. Particularly, changes in mitochondrial membrane potential (Δψ(m)) in astrocytes, an indicator of the cellular redox state, have not been investigated during reperfusion after extended OGD exposure. Here, we subjected primary m...

Ischemia is believed to induce neuronal damage by causing a sustained increase in the level of extracellular excitatory amino acids. In our study, we have examined the relationship between oxygen/glucose deprivation-induced changes in extracellular glutamate/aspartate level and subsequent neuronal injury by pharmacological manipulation of glutamate receptors and calcium and sodium channels. Cul...

BACKGROUND AND PURPOSE The 3 gene products of the Na(+)/Ca(2+) exchanger (NCX), viz, NCX1, NCX2, and NCX3, may play a pivotal role in the pathophysiology of brain ischemia. The aim of this study was to investigate the transductional and posttranslational mechanisms involved in the expression of these isoforms during oxygen and glucose deprivation and their role in endoplasmic reticulum Ca(2+) r...

Interest in the production of carbon commodities from photosynthetically fixed CO2 has focused attention on cyanobacteria as a target for metabolic engineering and pathway investigation. We investigated the redirection of carbon flux in the model cyanobacterial species, Synechococcus elongatus PCC 7942, under nitrogen deprivation, for optimized production of the industrially desirable compound,...

In the present work we set out to investigate the neuroprotective effects of noscapine (0.5-2 µM) in presence of D-glucose on primary murine foetal cortical neurons after oxygen-glucose deprivation/24 h. recovery. Cell viability, nitric oxide production and intracellular calcium ((ca(2+))i) levels were evaluated by MTT assay, the modified Griess method and Fura-2 respectively. 25 and 100 mM D-g...

26 27 Sertoli cells provide the physical support and the necessary environment to germ 28 cell development. Among the products secreted by Sertoli cells, lactate —the preferred 29 energy substrate for spermatocytes and spermatids— is present. Considering the essential 30 role of lactate on germ cell metabolism, it is supposed that Sertoli cells must ensure its 31 production even in adverse cond...

Sertoli cells provide the physical support and the necessary environment for germ cell development. Among the products secreted by Sertoli cells, lactate, the preferred energy substrate for spermatocytes and spermatids, is present. Considering the essential role of lactate on germ cell metabolism, it is supposed that Sertoli cells must ensure its production even in adverse conditions, such as t...

Efficacy of EGFR-targeted tyrosine kinase inhibitors (TKIs), such as erlotinib, to treat human non-small cell lung cancers (NSCLCs) with activating mutations in EGFR is not persistent due to drug resistance. Reprogramming in energy (especially glucose) metabolism plays an important role in development and progression of acquired resistance in cancer cells. We hypothesize that glucose metabolism...

The relevance of the study is due to lack data on cortical mechanisms regulation carbohydrate and lipid metabolism in body dogs. In this regard, article aimed at revealing issue dogs with various types higher nervous activity under influence short-term food deprivation. It shown that effect deprivation characterized by changes dogs, which are limited state system these animals. intact state, gl...

Inhibition of mammalian target of rapamycin (mTOR) signaling in cultured human primary trophoblast cells reduces the activity of key placental amino acid transporters. However, the upstream regulators of placental mTOR are unknown. We hypothesized that glucose, insulin, and IGF-I regulate placental amino acid transporters by inducing changes in mTOR signaling. Primary human trophoblast cells we...