Publications by authors named "Bonazzi M"

Background: Granulosa cell tumors (GCTs) are rare neoplasia that account for less than 5 % of all the ovarian tumors. Juvenile GCT histotype is generally observed in adolescent and young women, representing a very rare disease, so only a paucity of data are present in literature. The aim of this study is to analyse the oncologic and fertility outcome in our case series of juvenile GCTs.

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  • Intracellular bacterial pathogens manipulate host cell processes to create a suitable environment for their survival, with the Q fever bacterium using its Type 4 secretion system to form a specialized vacuole known as a CCV.
  • The study identifies that the bacterial effector protein Vice interacts with specific lipids (like phosphatidylserine) and triggers the formation of compartments similar to CCVs in host cells, demonstrating its role in both vacuole formation and stabilization.
  • Vice performs dual functions: first aiding in the internalization of vacuoles through macropinocytosis, and then disrupting the ESCRT machinery to maintain these compartments, highlighting its key role in bacterial replication and survival.
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The subcontinental lithospheric mantle (SCLM) beneath Phanerozoic regions is mostly constituted by fertile lherzolites, which sharply contrast with cratonic mantle made of highly-depleted peridotites. The question of whether this chemical difference results from lower degrees of melting associated with the formation of Phanerozoic SCLM or from the refertilization of ancient depleted SCLM remains a subject of debate. Additionally, the timing and geodynamic environment of accretion of the fertile SCLM in many Phanerozoic regions are poorly constrained.

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The intracellular bacterial pathogen Coxiella burnetii evades the host response by secreting effector proteins that aid in establishing a replication-friendly niche. Bacterial filamentation induced by cyclic AMP (Fic) enzymes can act as effectors by covalently modifying target proteins with the posttranslational AMPylation by transferring adenosine monophosphate (AMP) from adenosine triphosphate (ATP) to a hydroxyl-containing side chain. Here we identify the gene product of C.

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The aim of this study was to evaluate the potential of in extracting metals from rocks simulating Martian regolith through biomining. The results indicated that the fungal strain produced organic acids, particularly oxalic acid, in the first five days, leading to a rapid reduction in the pH of the culture medium. This acidic medium is ideal for bioleaching, a process that employs acidolysis and complexolysis to extract metals from rocks.

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Ezrin protein is involved in the interaction of actin cytoskeleton with membrane receptors such as CD44. It regulates plasma membrane dynamics and intracellular signaling. Coxiella burnetii, the etiologic agent of Q fever, is internalized into host cell through a poorly characterized molecular mechanism.

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Background: is a rare congenital or developmental deformity of the chest wall that has been reported in both dogs and cats. The clinical symptoms vary in severity and are correlated with the grade of the deformity. The most severe cases are at a very high risk of intra- and post-operative complications that could be fatal.

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  • Whey, a byproduct of the dairy industry, contains lactose and proteins that can be utilized by yeast through fermentation.
  • The study explores the yeast population in natural whey starter used in Parmigiano Reggiano cheesemaking, focusing on their thermotolerance, mating types, and ability to produce ethanol and bioactive peptides.
  • Results showed that specific yeast strains can efficiently ferment whey, with one strain achieving 86.5% ethanol production and another producing both ethanol and bioactive peptides that may help lower blood pressure, highlighting the potential for sustainable whey valorization.
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Intracellular bacterial pathogens establish their replicative niches within membrane-encompassed compartments, called vacuoles. A subset of these bacteria uses a nanochannel called the type 4 secretion system (T4SS) to inject effector proteins that subvert the host cell machinery and drive the biogenesis of these compartments. These bacteria have also developed sophisticated ways of altering the innate immune sensing and response of their host cells, which allow them to cause long-lasting infections and chronic diseases.

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Real-time elastosonography (RTE) is a recently described, non-invasive, ultrasonographic technique developed to assess tissue elasticity. The main aim of this study was to investigate the ultrasonographic and elastosonographic appearance of the common calcaneal tendon (CCT) in an ovine model, and to monitor the progression of tendon healing after an experimentally-induced tendinopathy. Sound tendons were initially evaluated (T) with a caliper and by a single operator with ultrasound.

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  • Q fever is caused by Coxiella burnetii and is primarily transmitted through airborne routes, with past studies suggesting ticks as potential vectors.
  • Recent research challenges this assumption, indicating that early misidentifications may have downplayed the role of ticks in transmission.
  • In studying the African soft tick Ornithodoros moubata, results showed viable infections and transmission in ticks, but no evidence of transmission through eggs or significant excretion of the bacterium in feces.
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is an obligate intracellular pathogen and the causative agent of the zoonotic disease Q fever. Following uptake by alveolar macrophages, the pathogen replicates in an acidic phagolysosomal vacuole, the -containing vacuole (CCV). Effector proteins translocated into the host cell by the type IV secretion system (T4SS) are important for the establishment of the CCV.

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Objectives: To report the cognitive features of patients with severe coronavirus disease 2019 (COVID-19) entering the postacute phase, to understand whether COVID-19 acute respiratory distress syndrome itself could result in long-term cognitive deficits, and to determine whether neuropsychological treatment after the acute stage might represent a specific rehabilitation need.

Design: Case series.

Setting: Rehabilitation hospital.

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The Q fever agent uses a defect in organelle trafficking/intracellular multiplication (Dot/Icm) type 4b secretion system (T4SS) to silence the host innate immune response during infection. By investigating effector proteins containing eukaryotic-like domains, here we identify NopA (nucleolar protein A), which displays four regulator of chromosome condensation (RCC) repeats, homologous to those found in the eukaryotic Ras-related nuclear protein (Ran) guanine nucleotide exchange factor (GEF) RCC1. Accordingly, NopA is found associated with the chromatin nuclear fraction of cells and uses the RCC-like domain to interact with Ran.

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The intracellular bacterial pathogen is the etiological agent of the emerging zoonosis Q fever. Crucial to its pathogenesis is type 4b secretion system-mediated secretion of bacterial effectors into host cells that subvert host cell membrane trafficking, leading to the biogenesis of a parasitophorous vacuole for intracellular replication. The characterization of prokaryotic serine/threonine protein kinases in bacterial pathogens is emerging as an important strategy to better understand host-pathogen interactions.

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Coxiella burnetii is an obligate intracellular bacterial pathogen responsible for severe worldwide outbreaks of the zoonosis Q fever. The remarkable resistance to environmental stress, extremely low infectious dose and ease of dissemination, contributed to the classification of C. burnetii as a class B biothreat.

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Case Summary: A 17-year-old neutered male European Shorthair cat was presented owing to an inability to jump and respiratory stridor. The owner did not report any other clinical signs. On physical examination, the main findings were plantigrade stance, broad facial features and inspiratory stridor.

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, the etiological agent of the zoonosis Q fever, replicates inside host cells within a large vacuole displaying autolysosomal characteristics. The development of this compartment is mediated by bacterial effectors, which interfere with a number of host membrane trafficking pathways. By screening a transposon mutant library, we observed that transposon insertions in led to intracellular replication and vacuole biogenesis defects.

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is an obligate intracellular gammaproteobacterium and zoonotic agent of Q fever. We previously identified 15 small noncoding RNAs (sRNAs) of One of them, CbsR12 (mall NA ), is highly transcribed during axenic growth and becomes more prominent during infection of cultured mammalian cells. Secondary structure predictions of CbsR12 revealed four putative CsrA-binding sites in stem loops with consensus AGGA/ANGGA motifs.

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The aim of this retrospective, cross-sectional, study was to evaluate clinical findings and outcomes for different ultrasonographic patterns of hepatic emphysema in dogs and cats. Dogs and cats with an ultrasonographic diagnosis of hepatic emphysema and a known outcome, from January 2010 to January 2018, were enrolled. The following data were recorded from medical and ultrasonographic records: ultrasonographic patterns of hepatic emphysema (parenchymal, portal venous, biliary), clinical signs, laboratory findings, and outcomes (favorable, poor).

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Objective:  This article describes the sonoelastographic features of the patellar ligament of sound dogs and tests feasibility, reproducibility and repeatability.

Methods:  Clinically healthy medium-to-large breed dogs were enrolled. Sonoelastographic images of the patellar ligaments were obtained in lateral recumbency with the stifle flexed by an experienced operator and by a senior veterinary student.

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Studying ancient DNA allows us to retrace the evolutionary history of human pathogens, such as Mycobacterium leprae, the main causative agent of leprosy. Leprosy is one of the oldest recorded and most stigmatizing diseases in human history. The disease was prevalent in Europe until the 16th century and is still endemic in many countries with over 200,000 new cases reported annually.

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  • Leprosy was a common disease in Europe until the 16th century, caused by a germ called Mycobacterium leprae.
  • Scientists studied old skeletons from Denmark to find out if they had this disease and managed to get complete DNA from 10 different bacteria, showing that the germs were diverse.
  • They also discovered that a specific gene, which makes people more likely to get leprosy today, was also linked to medieval people, indicating they might have been at risk too.
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