Publications by authors named "S Longu"

Introduction: Obstructive Sleep Apnea Syndrome (OSAS) is a respiratory disorder characterized by repeated episodes of partial or complete airway obstruction. Continuous Positive Airway Pressure therapy (CPAP) is effective in improving sleep quality and daytime sleepiness. The aim of the study was to evaluate therapeutic adherence in a sample of patients with OSAS from the Pneumology ward of the "Cardinal Massaia" Hospital in Asti.

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Objective: During the coronavirus disease 2019 (COVID-19) pandemic a proactive rounding (PR) team was introduced in our clinical practice in order to recognize the clinical deterioration of the patient as soon as possible. This study aimed to evaluate the impact of the PR team on the rapid response system (RRS) workload with particular regard to the activity carried out, the mode of intervention, and the outcome of patients.

Methods: In this retrospective study, the first period before the activation of the PR team (March 1, 2019, to February 29, 2020) and the second period after its activation (March 1, 2020, to March 1, 2021) were compared.

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Plant copper/quinone amine oxidases are homodimeric enzymes containing Cu(II) and a quinone derivative of a tyrosyl residue (2,4,5-trihydroxyphenylalanine, TPQ) as cofactors. These enzymes catalyze the oxidative deamination of primary amines by a classical ping-pong mechanism, i.e.

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The changes in the heme environment and overall structure occurring during reversible thermal inactivation and in denaturant guanidinium of Euphorbia characias latex peroxidase (ELP) were investigated in the presence and absence of calcium ions. Native active enzyme had an absorption spectrum typical of a quantum-mixed spin ferric heme protein. After 40 min at 60 degrees C ELP was fully inactivated showing the spectroscopic behavior of a pure hexacoordinate low-spin protein.

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Calmodulin (CaM) is a ubiquitous Ca(2+) sensor found in all eukaryotes, where it participates in the regulation of diverse calcium-dependent physiological processes. In response to fluctuations of the intracellular concentration of Ca(2+), CaM binds to a set of unrelated target proteins and modulates their activity. In plants, a growing number of CaM-binding proteins have been identified that apparently do not have a counterpart in animals.

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