Publications by authors named "Paolo Silvestrini"

Article Synopsis
  • Hypoadrenocorticism in cats is rare, often presenting with abnormal serum sodium and potassium levels, but some cases show normal values; a study analyzed 41 cats with varying results.* -
  • The study found that cats with electrolyte imbalances were more likely to exhibit symptoms like hypothermia and weakness, while over half of the subjects (85.4%) were discharged after treatment.* -
  • About one-third of the cats showed hypercalcemia, and those without serious underlying conditions often had a good prognosis post-hospitalization; testing for exocrine pancreatic insufficiency is recommended.*
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Article Synopsis
  • - The text discusses the promising role of photodetectors, particularly those made from graphene/silicon heterojunctions, in converting light signals into electrical signals for various tech applications.
  • - The specific photodiode being studied consists of a single layer of graphene on both p-type and n-type silicon, with its performance evaluated under different lighting conditions across a spectral range of 400 nm to 800 nm.
  • - Key findings include the significance of silicon substrate doping for enhancing photodetector efficiency by improving photoresponse and lowering dark current, along with quality insights from Raman spectroscopy.
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Background: Information regarding serum insulin concentration in dogs newly diagnosed with insulinoma and its association with clinical stage and survival time is lacking.

Objective: Examine association between serum insulin concentration and survival and clinical disease stage in dogs with insulinoma.

Animals: Fifty-nine client-owned dogs with a diagnosis of insulinoma from 2 referral hospitals.

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Objectives: The primary goals of this retrospective study were to describe a population of dogs with portal hypertension secondary to liver disease, and to assess whether prognosis could be inferred from historical, clinical, and clinicopathological data.

Animals And Procedures: Dogs (N = 76) diagnosed with intrahepatic portal hypertension between 2011 and 2020 were included; dogs with known congenital hepatic anomalies were excluded. Effect on survival was assessed using univariable and multivariable Cox proportional hazards models for historical, clinical, and clinicopathological variables.

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Background: Current reports about the use of splenectomy for the management of immune-mediated hemolytic anemia (IMHA) or immune-mediated thrombocytopenia (ITP) or both in dogs are limited.

Objectives: To retrospectively describe the use of splenectomy as part of the management for IMHA, ITP, and concurrent IMHA and severe thrombocytopenia (CIST) in dogs. It was hypothesized that splenectomy would be beneficial in allowing for reduction of dose of immunosuppressive drugs or discontinuation in 1 or more of these groups.

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Case Series Summary: Cats with non-erosive immune-mediated polyarthritis (IMPA) were identified from seven referral hospitals between 2009 and 2020 for a multicentre retrospective case series. Data were obtained from hospital records and referring veterinarians were contacted for follow-up. Twenty cases were identified: 12 castrated males (60%), one entire male (5%) and seven spayed females (35%).

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Xanthinuria is a significant adverse effect in dogs on long-term allopurinol for treatment of leishmaniosis. The study aims to investigate how the Iberian veterinary community (IVC) identifies, manages, and proactively prevents xanthinuria secondary to allopurinol treatment. A cross-sectional study was conducted using an online survey, translated into two languages, and disseminated to the IVC via social networking forums.

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Objective: To perform a retrospective, multicenter observational study that compares the agreement of rectal temperature with the temperature measured with noncontact infrared thermometer (NCIT) in a population of dogs and cats.

Animals: 168 dogs and 61 cats.

Procedures: NCIT readings were taken in triplicate from the medial pinna, then rectal temperature was taken with a standard digital rectal thermometer (RT).

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Heterojunction photodetector based on reduced graphene oxide (rGO) has been realized using a spin coating technique. The electrical and optical characterization of bare GO and thermally reduced GO thin films deposited on glass substrate has been carried out. Ultraviolet-visible-infrared transmittance measurements of the GO and rGO thin films revealed broad absorption range, while the absorbance analysis evaluates rGO band gap of about 2.

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Background: Canine idiopathic eosinophilic lung disease (ELD) is sparsely documented in the literature.

Methods: Clinical presentation and outcome of dogs diagnosed with ELD (eosinophilic bronchitis or eosinophilic bronchopneumonia) were reviewed. Subgroups were made based on chronicity of clinical signs and findings of thoracic imaging: NCI (no changes in thoracic imaging), BRON (bronchial/peribronchial pattern), INT (bronchointerstitial/interstitial/alveolar).

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Background: Information regarding outcome of dogs undergoing surgical management for insulinoma is based on studies of a small number of dogs.

Objectives: To report the outcomes of dogs undergoing surgery as treatment for insulinoma, the prevalence of postoperative diabetes mellitus (DM) in this group and to determine if development of DM can be predicted.

Animals: Forty-eight client-owned dogs, with a histopathological diagnosis of insulinoma, from three European referral hospitals.

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The magneto-mechanical behaviour of structural steel specimens stressed up to the plastic deformation stage was investigated using a 2nd order gradiometer based on Giant Magneto Resistive (GMR) sensors. The correlation between the gradient of the magnetization and the dislocation density before the crack initiation inside the test material was reported. The capability of the GMR scanning sensor to detect the residual magnetization due to the tensile stress with a non-invasive technique was demonstrated.

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In the present article, we present the experimental results concerning the fine-tuning and optimization of superconducting quantum interference device (SQUID) parameters by thermal annealing. This treatment allows for the modification of the parameters in order to meet a specific application or to adjust the device parameters to prevent the increase of magnetic field noise and work instability conditions due to a different critical current with respect to the design value. In particular, we report the sensor critical current, the voltage-flux (V-Φ) characteristics and the spectral density of the magnetic field of SQUID magnetometers for different annealing temperatures.

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Transitional cell carcinoma (TCC) is the most common canine urinary tract tumour and mimics human invasive TCC. Human TCCs overexpress lipoxygenase (LOX)-5 and the use of target inhibitors has proven effective in inhibiting neoplastic growth. In this study, we investigated the immunohistochemical expression of LOX-5 in normal canine urinary bladder, cystitis and TCC.

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A 10-year-old, female spayed mixed-breed or cross-bred dog was referred to the Small Animal Teaching Hospital of the University of Liverpool due to tachypnea, dyspnea, and pleural effusion not responding to diuretics and antibiotics. The chest was drained and cytology of the pleural fluid was consistent with a modified transudate with presence of atypical cells initially attributed to mesothelial hyperplasia and dysplasia. Computed tomography detected, in addition to the bilateral pleural effusion, diffuse pleural thickening, multiple pleural and pulmonary nodules, and a mineralized and lytic mass in the left scapula.

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Background: When increased serum cobalamin concentrations are encountered clinically they are usually attributed to parenteral supplementation, dietary factors, or otherwise ignored. However, recently, hypercobalaminaemia has been associated with numerous diseases in humans, most notably neoplastic and hepatic disorders. The aim of this retrospective, observational, cross-sectional study was to determine the significance of increased cobalamin in cats.

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Background: There is anecdotal evidence of myocardial injury in dogs with leishmaniasis due to generalized vasculitis and myocarditis.

Objective: The aims of this study were to evaluate serum concentration of cardiac troponin I (cTnI) as an indicator of myocardial injury in dogs with leishmaniasis and to assess the relationship between cTnI concentration and age, serum antibody titer, and a variety of blood analytes.

Methods: In this retrospective study, serum cTnI concentration was measured in dogs with leishmaniasis and in age-matched healthy dogs.

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Objective: Description of the clinical presentation and management of a critically ill cat with profound hypokalemia associated with a suspicion of distal renal tubular acidosis (DRTA) and secondary hyperaldosteronism.

Case Summary: A cat was presented with severe generalized weakness and acute ventilatory failure associated with severe hypokalemia. The acid-base analysis and complete analytical profile of the urine confirmed the presence of a normal anion-gap metabolic acidosis with a urine pH of 7, a disorder consistent with DRTA.

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