Publications by authors named "Guido Mellado"

Glycogen synthase kinase 3 (GSK-3) is involved in different diseases, such as manic-depressive illness, Alzheimer's disease and cancer. Studies have shown that insulin inhibits GSK-3 to keep glycogen synthase active. Inhibiting GSK-3 may have an indirect pro-insulin effect by favouring glycogen synthesis.

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Spider toxin SNX-482 is a cysteine-rich peptide that interferes with calcium channel activity by binding to voltage-sensing domains of the Ca2.3 subtype. Two mechanisms dominate the binding process of cysteine-rich peptides: direct binding from the aqueous phase or through lateral diffusion from the membrane, the so-called reduction in dimensionality mechanism.

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Article Synopsis
  • RGK proteins are key regulators of high voltage-activated (HVA) calcium channels, primarily inhibiting calcium current through mechanisms like endocytosis.
  • In this study, only Gem, when injected into oocytes without auxiliary Caβ subunit, reduced Ca2.3 channel activity, indicating it lowers the number of these channels on the cell surface.
  • The observed reduction in calcium currents and charge movements suggests that Gem promotes endocytosis independently of the Caβ subunit, making it a unique example of dynamin-dependent endocytosis for these channels.
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In the digital era, tech devices (hardware and software) are increasingly within hand's reach. Yet, implementing information and communication technologies for educational contexts that have robust and long-lasting effects on student learning outcomes is still a challenge. We propose that any such system must a) be theoretically motivated and designed to tackle specific cognitive skills (e.

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