Publications by authors named "Visintin A"

Intestinal anti-endomysium antibodies are a specific marker of celiac disease. The diagnostic accuracy of this marker seems high in pediatric patients and has not yet been investigated in adults, so the aim of this prospective multicentric study was to evaluate the specificity and sensitivity of this marker in childhood and adulthood. Pediatric and adult patients undergoing intestinal endoscopy for any intestinal condition were enrolled.

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  • The genus Flavivirus includes around 80 viruses, categorized by their transmission methods, primarily through mosquitoes and ticks, or as insect-specific flaviviruses.
  • Researchers investigated insect-specific flaviviruses in Argentina by analyzing the NS5 protein gene in mosquitoes from Córdoba, Chaco, and Tucumán, finding 68 out of 1776 pools positive for viruses like CxFV, KRV, and CFAV.
  • A significant presence of CxFV was detected across various mosquito species in northern and central Argentina, with strains showing genetic links to those found in other countries, highlighting potential public health risks due to interactions with pathogenic flaviviruses.
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Introduction: Non-selective beta-blockers (NSBB) are used for primary prophylaxis in patients with liver cirrhosis and high-risk varices (HRVs). Assessing therapeutic response is challenging due to the invasive nature of hepatic venous pressure gradient (HVPG) measurement. This study aims to define a noninvasive machine-learning based approach to determine response to NSBB in patients with liver cirrhosis and HRVs.

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  • St. Louis encephalitis virus (SLEV) and West Nile virus (WNV) are present in La Rioja province, Argentina, with SLEV seroprevalence at 4.5% and WNV at 3.5% over a two-year study.
  • Higher seroprevalence for both viruses was seen in specific bird species during various seasons, indicating active transmission among avian hosts.
  • The study emphasizes the ongoing circulation of these viruses in a semiarid environment and suggests that further research is needed to understand how they persist in such ecosystems.
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Combinatorial strategies, such as targeting different immune checkpoint receptors, hold promise to increase the breadth and duration of the response to cancer therapy. Here we describe the preclinical evaluation of CTX-8371, a protein construct which combines PD-1 and PD-L1 targeting in one bispecific, tetravalent antibody. CTX-8371 matched or surpassed the activity of anti-PD-1 and PD-L1 benchmark antibodies in several T cell activation assays and outperformed clinically approved benchmarks in the subcutaneous MC38 colon and the B16F10 lung metastasis mouse tumor models.

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Hepatic resection, radiofrequency ablation (RF), and liver transplantation (LT) represent the only available curative treatments for early stage hepatocellular carcinoma (HCC). Various studies showed that the 5-year overall survival (OS) rate reaches ∼70% after resection and ∼60% after RF. To improve the success rate of curative therapies and consequently the OS, an improvement in patients' selection and management should be pursued.

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  • Hepatocellular carcinoma (HCC) is a serious cancer that significantly affects survival rates, especially due to its tendency to recur after treatment.
  • This study analyzed 58 patients with early-stage HCC who received either surgical resection or local ablation to identify factors linked to early recurrence.
  • Key findings revealed that factors like male gender, nodule size over 20 mm, and specific blood count ratios were associated with a higher risk of recurrence, which aligns with existing research.
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Psorophora (Grabhamia) dimidiata Cerqueira (1943) was described based on the adult female and male. Later, descriptions of the male and female genitalia were published by Lane (in Neotropical Culicidae, vols. I & II.

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  • The study investigates the mosquito species in the southern coast of Mar Chiquita Lake, Argentina, emphasizing their impact on public health through the transmission of diseases.
  • Over two years, researchers collected 71,501 adult mosquitoes from 30 species, with Culex and Aedes being the most abundant, representing over 98% of the specimens.
  • The findings indicate higher mosquito richness and abundance during warmer seasons, with certain key species recurring year-round, highlighting the need for further research on their role in virus transmission.
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Lithium-sulfur batteries are considered one of the possible next-generation energy-storage solutions, but to be commercially available many drawbacks have yet to be solved. One solution with great potentiality is the use of lithium sulfide as cathode material since it can be coupled to Li-free anodes, such as graphite, Si or Sn. Nevertheless, LiS, like sulfur, is electronically and ionically insulating, with a high activation potential for its initial oxidation step.

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The subgenus Culex L. includes species involved in summer-autumn arbovirus transmission but studies during winter are scarce in temperate Argentina. Female specimens were collected host-seeking at dry-ice-baited traps during autumn-winter-spring at two sites in Córdoba City during 2016 and 2017.

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Background: Hepatocellular carcinoma (HCC) represents the most common primitive liver malignancy. A relevant concern involves the lack of agreement on staging systems, prognostic scores, and treatment allocation algorithms.

Aim: To compare the survival rates among already developed prognostic scores.

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Introduction: Alcohol-related liver disease (ALD) was estimated to have a prevalence of 2% among the USA population. Since severe fibrosis in compensated patients is the main predictor of long-term survival, it is of utmost importance to early detect patients with severe fibrosis before decompensation occurs. Liver elastography has been used to stage liver fibrosis.

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St. Louis encephalitis (SLEV) and West Nile (WNV) arboviruses, which circulate in Argentina, are maintained in enzootic transmission cycles involving Culex mosquitoes (vectors) and birds belonging to orders Passeriformes and Columbiformes (amplifier hosts). The objective of this work was to determine the circulation of both viruses among wild birds in a semiarid ecosystem in the Province of La Rioja through a serologic survey.

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The clinical outcome of hepatocellular carcinoma (HCC) treatment remains unsatisfactory, contributing to the high mortality of HCC worldwide. Circulating miRNAs have the potential to be a predictor of therapy response. Microarray profiling was performed in serum samples of 20 HCC patients before treatment.

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Fucus virsoides is an ecologically important canopy-forming brown algae endemic to the Adriatic Sea. Once widespread in marine coastal areas, this species underwent a rapid population decline and is now confined to small residual areas. Although the reasons behind this progressive disappearance are still a matter of debate, F.

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Background: Spleen stiffness (SS) has gained a lot of interest in the context of liver cirrhosis and portal hypertension stratification. However, there is a paucity of data on confounding factors that may alter SS values.

Methods: Between January 2018 and October 2019, we enrolled 120 healthy subjects and 117 patients with hepatitis C virus (HCV) infection who did not have significant liver fibrosis (i.

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Introduction And Objectives: This study aims to measure the values of spleen stiffness (SS) in healthy subjects, the inter-operator agreement in SS measurement, and to detect statistically significant correlations between SS and age, sex, weight, BMI, portal vein dynamics and splenic dimensions.

Materials And Methods: The study included 100 healthy volunteers who had no substantial alcohol intake (<30g/daily for man, <20g/daily women), were negative on hepatitis B, hepatitis C, HIV blood serology, and had any history of lymphoproliferative disorders. Abdominal ultrasound, liver and spleen elastography were performed on each patient to search for focal splenic lesions, bile tract or portal vein dilatation, moderate/severe liver steatosis, and to measure liver and spleen stiffness.

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Article Synopsis
  • Metabolism and Cancer
  • : Cancer metastasis relies heavily on active energy production via mitochondrial metabolism, which enhances the adaptability of cancer cells and their resistance to treatments.
  • Effect of AA6
  • : The study investigates the α-ketoglutarate dehydrogenase inhibitor AA6, which, when applied in a mouse model of breast cancer, causes an increase in α-ketoglutarate levels and enhances the activity of certain epigenetic enzymes linked to DNA demethylation.
  • Anti-Metastatic Mechanism
  • : Treatment with AA6 not only reduces metastasis formation but also alters key molecular pathways by regulating microRNA and transcription factors involved in cancer aggressiveness, leading to a decrease
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Objective: Molecular pathways governing blood vessel patterning are vital to vertebrate development. Because of their ability to counteract proangiogenic factors, antiangiogenic secreted Sema3 (class 3 semaphorins) control embryonic vascular morphogenesis. However, if and how Sema3 may play a role in the control of extraembryonic vascular development is presently unknown.

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We report the presence of the competent vector for Leishmania spp, Migonemyia migonei, and the Evandromyia cortelezzii-sallesi complex south of its known distribution in the central temperate region of Argentina, in the province of Córdoba. The persistence of this phlebotomine in the northern border of the province, its association with a case of cutaneous leishmaniasis, and the new record in the outskirts of the city of Córdoba, the second most populated in the country, strengthens the need for regular vector surveillance and a case detection-sensitive health system in vulnerable regions, even in temperate climates.

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Neisseria gonorrhoeae, the causative agent of the sexually transmitted infection gonorrhea, has developed resistance to almost every conventional antibiotic. There is an urgent need to develop novel therapies against gonorrhea. Many pathogens, including N.

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Antibody-drug conjugates (ADC) represent a promising therapeutic modality for managing cancer. Here, we report a novel humanized ADC that targets the tetraspanin-like protein TM4SF1. TM4SF1 is highly expressed on the plasma membranes of many human cancer cells and also on the endothelial cells lining tumor blood vessels.

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Bunyamwera virus (BUNV) (Bunyaviridae, genus Orthobunyavirus, serogroup Bunyamwera) is considered an emerging pathogen for humans and animals in American countries. The CbaAr-426 strain of BUNV was recovered from mosquitoes Ochlerotatus albifasciatus (Diptera: Culicidae) collected in Córdoba province (Argentina), where serological studies detected high seroprevalences in humans and animals. Molecular detection of Orthobunyavirus was performed in mosquitoes collected in Córdoba province.

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To gain insight into the functional antibody repertoire of rabbits, the VH and VL repertoires of bone marrow (BM) and spleen (SP) of a naïve New Zealand White rabbit (NZW; Oryctolagus cuniculus) and that of lymphocytes collected from a NZW rabbit immunized (IM) with a 16-mer peptide were deep-sequenced. Two closely related genes, IGHV1S40 (VH1a3) and IGHV1S45 (VH4), were found to dominate (~90%) the VH repertoire of BM and SP, whereas, IGHV1S69 (VH1a1) contributed significantly (~40%) to IM. BM and SP antibodies recombined predominantly with IGHJ4.

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