Publications by authors named "Luis Marte"

Visits to hospital emergency departments by patients with multimorbidity, complex chronic conditions, and frailty are becoming an increasing challenge. A territorial strategy has been developed, based on automated preselection lists, a nurse case manager with specialized experience, and a multi-level territorial referral consensus. The feasibility of this approach has been demonstrated, with 368 alerts detected, 85% of which were well-selected.

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One of the many unresolved obstacles in the field of cardiovascular research is an uncompromising in vitro cardiac model. While primary cell sources from animal models offer both advantages and disadvantages, efforts over the past half-century have aimed to reduce their use. Additionally, obtaining a sufficient quantity of human primary cardiomyocytes faces ethical and legal challenges.

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Background: The European University Hospitals Alliance (EUHA) recognises the need to move from the classical approach of measuring key performance indicators (KPIs) to an anticipative approach based on predictable indicators to take decisions (Key Decision Indicators, KDIs). It might help managers to anticipate poor results before they occur to prevent or correct them early.

Objective: This paper aims to identify potential KDIs and to prioritize those most relevant for high complexity hospitals.

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Many neurodegenerative disorders display protein aggregation as a hallmark, Huntingtin and TDP-43 aggregates being characteristic of Huntington disease and amyotrophic lateral sclerosis, respectively. However, whether these aggregates cause the diseases, are secondary by-products, or even have protective effects, is a matter of debate. Mutations in both human proteins can modulate the structure, number and type of aggregates, as well as their toxicity.

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Article Synopsis
  • Hsp40 chaperone Mas5 helps fission yeast cells manage temperature-sensitive proteins by directing them to protein aggregate centers (PACs) during heat shock, preventing their degradation until conditions improve for refolding.
  • Cells without Mas5 show resilience to oxidative stress, linked to increased activity of stress response pathways involving MAP kinase Sty1 and transcription factor Atf1.
  • Pyp1, a key tyrosine phosphatase, aggregates under heat stress in a Mas5-dependent way, leading to its degradation and facilitating the activation of the Sty1-Atf1 anti-stress response.
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Cells have developed protein quality-control strategies to manage the accumulation of misfolded substrates during heat stress. Using a soluble reporter of misfolding in fission yeast, Rho1.C17R-GFP, we demonstrate that upon mild heat shock, the reporter collapses in protein aggregate centers (PACs).

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Article Synopsis
  • A study on fission yeast focused on identifying proteins that help maintain stress tolerance found eight gene deletions that enhance resistance to oxidative stress and caffeine.
  • The transcription factor Pap1 was shown to be crucial for this dual resistance, influencing key proteins involved in protein quality control and signaling.
  • The research revealed that even without stress, the movement of Pap1 between the nucleus and cytoplasm allows it to interact with the E3 ligase Ubr1, suggesting this activity helps maintain resilience against stress.
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