Publications by authors named "Lezzi M"

Objectives: To summarize evidence regarding intravenous angiotensin II administration in critical illness and provide an updated understanding of its effects on various organ dysfunction and renin-angiotensin system (RAS) biomarkers.

Design: A systematic review.

Setting: A search of PubMed, Embase, and the Cochrane Library from inception to May 3, 2024.

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Aims: Diabetic ketoacidosis is the most severe metabolic derangement due to prolonged insulin deficiency as in type 1 diabetes. Diabetic ketoacidosis, a life-threatening condition, is often diagnosed late. A timely diagnosis is mandatory to prevent its consequences, mainly neurological.

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Anti-Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) vaccination is the world's most important strategy for stopping the pandemic. Vaccination challenges the body's immune response and can be complicated by hypersensitivity reactions. The autonomic nervous system can modulate the inflammatory immune response, therefore constituting a potential marker to characterize individuals at high risk of hypersensitivity reactions.

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Monogenic diabetes is a rare form of diabetes, accounting for approximately 1% to 6% of pediatric diabetes patients. Some types of monogenic diabetes can be misdiagnosed as type 1 diabetes in children or adolescents because of similar clinical features. Identification of the correct etiology of diabetes is crucial for clinical, therapeutic, and prognostic issues.

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Tandem Control-IQ and Minimed 780G represent the most Advanced Hybrid Closed Loop (AHCL) systems currently available in pediatric and adult subjects with Type 1 Diabetes (T1D). We retrospectively compared clinical and continuous glucose monitoring data from 51 patients who upgraded to Minimed 780G system and have completed 1-month observation period with data from 39 patients who upgraded to Tandem Control-IQ. Inverse probability weighting was used to minimize the basal characteristics imbalances.

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Antibiotic susceptibility of was retrospectively assessed in 1833 strains isolated from skin lesions observed in an Italian tertiary care hospital. Methicillin resistance was more frequent in outpatients than in inpatients (18% vs. 14%,  = 0.

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Records of the cumacean genus Iphinoe from Italian coasts are reported with relevant data on the habitat, morphology and geographical distribution of each species. Seven Iphinoe species from the Italian coasts were recorded and are presented here with their own distributional ranges; the description of a new species, Iphinoe daphne n. sp.

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Congenital adrenal hyperplasia (CAH) consists of several autosomal recessive disorders that inhibit steroid biosynthesis. We describe a case report diagnosed with adrenal insufficiency due to low adrenal steroids and adrenocorticotropic hormone excess due to lack of cortisol negative feedback signaling to the pituary gland. Genetic work up revealed two missense variants, p.

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Context: The etiology of central diabetes insipidus (CDI) in children is often unknown. Clinical and radiological features at disease onset do not allow discrimination between idiopathic forms and other conditions or to predict anterior pituitary dysfunction.

Objective: To evaluate the evolution of pituitary stalk (PS) thickening and the pattern of contrast-enhancement in relation with etiological diagnosis and pituitary function.

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Areas subjected to anthropogenic impacts are important to test the effect of stressors on local biota. We assessed with trawl net the composition and abundance of megafauna, litter, and litter-fouling communities in the soft bottoms of the National Interest Priority Site (NIPS) of Bagnoli-Coroglio (Gulf of Naples, Tyrrhenian Sea) at different depths. The megafauna accounted for 3444 specimens referred to 133 taxa (91 invertebrates and 42 fishes), for a biomass of ~102 kg and including species of wide ecological and commercial interest.

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Sabellaria alveolata is an ecosystem engineer species capable of building bioconstructions, playing a key functional role in the shallow coastal ecosystems. S. alveolata reefs perform several ecosystem services, such as hosting a rich fauna and producing structures able to provide coastal protection.

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This study was performed to analyse the genetic and morphological diversity of the sabellid annelid genus Branchiomma, with special emphasis on a taxon so far identified as Branchiomma bairdi. This species, originally described from Bermuda, has frequently been reported as an invader in the Mediterranean, the Atlantic and the Eastern Pacific, but recent observations have raised some taxonomic questions. Samples of this taxon were collected from five sites in the Mediterranean Sea, two sites in the original distribution area of B.

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Aquaculture is increasing rapidly to meet global seafood demand. Some hydroid populations have been linked to mortality and health issues in finfish and shellfish, but their dynamics in and around aquaculture farms remain understudied. In the present work, two experiments, each with 36 panels, tested colonization (factors: depth, season of immersion) and succession (factors: depth, submersion duration) over one year.

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Recently, genetic approaches have revealed a surprising bacterial world as well as a growing knowledge of the enormous distribution of animal-bacterial interactions. In the present study, the diversity of the microorganisms associated to the hydroid Aglaophenia octodonta was studied with epifluorescence, optical, and scanning electron microscopy. Small subunit ribosomal RNA gene sequencing with "universal" and taxon-specific primers allowed the assignment of the microalgae to Symbiodinium and the peritrich ciliates to Pseudovorticella, while the luminous vibrios were identified as Vibrio jasicida of the Harvey clade.

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We investigated the bacterial accumulation and digestion capability of Polyandrocarpa zorritensis, a non-indigenous colonial ascidian originally described in Peru and later found in the Mediterranean. Microbiological analyses were carried out on homogenates from "unstarved" and "starved" ascidians and seawater from the same sampling site (Adriatic Sea, Italy). Culturable heterotrophic bacteria (22 °C), total culturable bacteria (37 °C) and vibrios abundances were determined on Marine Agar 2216, Plate Count Agar and TCBS Agar, respectively.

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We examined the bacterial accumulation and digestion in the alien polychaete Branchiomma bairdi. Microbiological analyses were performed on worm homogenates from "unstarved" and "starved" individuals and on seawater from the same sampling site (Ionian Sea, Italy). Densities of culturable heterotrophic bacteria (22 °C), total culturable bacteria (37 °C) and vibrios were measured on Marine Agar 2216, Plate Count Agar and TCBS Agar, respectively.

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The ecdysteroids (Ec), invertebrate steroid hormones, elicit genomic but also non-genomic effects. By analogy to vertebrates, non-genomic responses towards Ec may be mediated not only by distinct membrane-integrated but also by membrane-associated receptors like the classical nuclear ecdysteroid receptor (EcR) of arthropods. This is supported by a comparison of physiological properties between invertebrate and vertebrate steroid hormone systems and recent findings on the subcellular localization of EcR.

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Ecdysteroids (Ecs) enhance the formation of Ec receptor-ultraspiracle protein (EcR-USP) heterodimers which regulate gene transcription. To study EcR-USP heterodimerization, fusion proteins were constructed from the LBDs (ligand-binding domains) of Drosophila EcR or USP and the activation or DNA-binding region of GAL4 respectively. Reporter gene ( lacZ ) activation was fully dependent on the co-expression of the two fusion proteins and thus constitutes a reliable measure for the interaction in vivo between the two LBDs in the yeast cell.

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The insect ecdysteroid receptor consists of a heterodimer between EcR and the RXR-orthologue, USP. We addressed the question of whether this heterodimer, like all other RXR heterodimers, may be formed in the absence of ligand and whether ligand promotes dimerization. We found that C-terminal protein fragments that comprised the ligand binding, but not the DNA binding domain of EcR and USP and which were equipped with the activation or DNA binding region of GAL4, respectively, exhibit a weak ability to interact spontaneously with each other.

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Heterochromatin differs from euchromatin by a set of specific features. We suggested earlier that specific features of heterochromatin result from differences in DNA topology of these two chromatin types and provided explanations for the majority of them (Gruzdev 2000). We proposed that, unlike topologically closed euchromatic DNA, the DNA of heterochromatin is topologically open, i.

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Ecdysone agonists belonging to the bisacylhydrazine class of compounds are a new generation of insecticidal compounds that cause premature lethal molts in susceptible intoxicated insects. While two of the bisacylhydrazines (coded as RH-5992 and RH-2485) are predominantly toxic to lepidopteran pests, RH-5849, which has not been commercialized, has a broader spectrum of toxicity. We have carried out toxicity bioassays with last (4th) instar Chironomus tentans L.

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The steroid hormone ecdysone initiates molting and metamorphosis in Drosophila via a heterodimeric receptor consisting of EcR that binds hormone, and USP, a homolog of the vertebrate RXR receptor. EcR exists in three isoforms EcRA, EcRB1 and EcRB2 that are thought to direct specific physiological responses to ecdysone. These three isoforms differ only in their N-terminal A/B domain that implies that sequences responsible for the differential physiological effects lie within the A/B domains of the EcR isoforms.

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The ultraspiracle (usp) gene encodes a nuclear receptor that forms a heterodimer with the ecdysone receptor (EcR) to mediate transcriptional responses to the insect steroid hormone, 20-hydroxyecdysone (20HE). The responses ultimately elicit changes associated with molting and metamorphosis. Although Ultraspiracle (USP) is required at several developmental times, it is unclear whether USP plays stage-specific roles in Drosophila.

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