Publications by authors named "Macchia S"

Allogeneic chimeric antigen receptor (CAR) T cells targeting disialoganglioside-GD2 (ALLO_GD2-CART01) could be a therapeutic option for patients with relapsed or refractory, high-risk neuroblastoma (r/r HR-NB) whose tumors did not respond to autologous GD2-CART01 or who have profound lymphopenia. We present a case series of five children with HR-NB refractory to more than three different lines of therapy who received ALLO_GD2-CART01 in a hospital exemption setting. Four of them had previously received allogeneic hematopoietic stem cell transplantation.

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Bioassays are a crucial tool for assessing environmental quality, but they face inherent variability due to unexplored confounding factors in marine ecosystems. Ammonium (NH) is a vital form of nitrogen in aquatic environments, but it is also a significant focus due to its toxic effects, particularly on marine invertebrates. This study examines the impact of ammonium toxicity on Paracentrotus lividus embryo-development bioassays, which are widely used to evaluate the environmental quality of dredged sediment.

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The copepod Acartia tonsa was used as a model species to assess marine sediment quality. Acute and chronic bioassays, such as larval development ratio (LDR) and different end-points were evaluated. As a pelagic species, A.

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Day-to-day interactions often involve individuals interacting with groups, but little is known about the criteria that people use to decide which groups to approach or trust and which to avoid or distrust. Seven studies provide evidence for a "small = trustworthy" heuristic, such that people perceive numerically smaller groups as more benevolent in their character and intentions. As a result of this, individuals in trust-sensitive contexts are more likely to approach and engage with groups that are relatively small than those that are relatively large.

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The present research examines whether people use racial contact to signal positive and negative social attributes. In two experiments, participants were instructed to fake good (trustworthy/competent) or fake bad (untrustworthy/incompetent) when reporting their amount of contact with a range of different racial groups. In Experiment 1 (N = 364), participants faking good reported significantly more contact with White Americans than with non-White Americans, whereas participants faking bad did not.

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Contamination levels by plastic debris, trace elements and persistent organic pollutants were assessed and related to macrobenthic diversity within soft bottoms of Grand Harbour (Malta, Central Mediterranean). Sediment toxicity was evaluated by ecotoxicological method, deploying Bacteria (Vibrio fischeri), Echinodermata (Paracentrotus lividus) and Crustacea (Corophium orientale). Univariate analysis (Pearson's test) was used to test relationships between biodiversity indices, pollutants and grain size.

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The present research adopts an extended theory of the planned behavior model that included descriptive norms, risk, and trust to investigate online privacy protection in Facebook users. Facebook users (N = 119) completed a questionnaire assessing their attitude, subjective injunctive norm, subjective descriptive norm, perceived behavioral control, implicit perceived risk, trust of other Facebook users, and intentions toward protecting their privacy online. Behavior was measured indirectly 2 weeks after the study.

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Background: The difference in the diagnostic accuracy of 22- versus 25-gauge needles in EUS-FNA is not clear.

Aims: To compare the rates of technical success, diagnostic accuracy and complications of EUS-FNA performed with 22-gauge and 25-gauge needles on the same solid pancreatic mass.

Methods: All patients with solid pancreatic masses evaluated from September 2007 to December 2008 were enrolled and underwent EUS-FNA with both 22- and 25-gauge needles with randomisation of needle sequence.

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Background And Aim: Endoscopic ultrasonography (EUS) is a minimally invasive diagnostic tool for common bile duct stones (CBDS) and may be used to select patients for therapeutic endoscopic retrograde cholangiography (ERC). The aim of this trial is to compare, in patients with non-high-risk for CDBS, the clinical and economic impact of EUS plus ERC performed in a single endoscopic session versus EUS plus ERC in two separate sessions.

Methods: During an 11-month period, all adult patients admitted to the emergency department with suspicion of CBDS were categorized into either high-risk or non-high-risk groups, on the basis of clinical, biochemical, or transabdominal ultrasound findings.

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The purpose of this study was to determine the effectiveness of Lactobacillus-containing vaginal tablets in the treatment of bacterial vaginosis (BV) and in the restoration of a healthy vaginal flora. Thirty-nine women with BV were enrolled in a double-blind, placebo-controlled clinical trial. Patients received either one Lactobacillus-containing tablet or placebo daily for 7 days.

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Remobilization of chemicals from contaminated sediments is a major risk associated with dredging and disposal operations in harbour areas. In this work caged mussels, Mytilus galloprovincialis, were chosen as bioindicator organisms to reveal the impact and recovery of organisms from these activities in the harbour of Piombino (Tuscany, Italy) where approximately 100,000 m(3) of sediments were removed and disposed in a local confined disposal facility (CDF). Organisms were deployed before, during and after the end of operations, selecting sites differently impacted by these activities.

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The aim of this work was to monitor the sensitivity of two populations of Corophium orientale (Crustacea: Amphipoda) living at the outfall of two rivers (Magra and Serchio), comparing their responses towards two different toxicant solutions. Sensitivity was monthly checked performing the 96h-LC50 static water only test with Cd(NO3)2 and SDS. If no significant differences were found between the two populations, they could have been employed without distinction to perform sediment toxicity bioassays.

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The sperm cell toxicity test with Paracentrotus lividus is widely used in Italy to assess the quality of complex aqueous matrices, but at present there is a shortage of standardized methodologies for the bioassay performance. In this work several critical points were considered, in order to verify the reliability of this bioassay and to improve its standardization. In particular, we have studied the differences in EC50 values at different sperm: egg ratios and with different quantities of gametes; the influence of sperm and eggs on fertilization rate and the influence of different recipients materials (plastic or glass).

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The southern basin of the Venice Lagoon has been the focus of fewer studies concerning contamination from heavy metals than the northern and central basins. A recent increase in urban waste waters from Chioggia town, as well as dockyards, shipping and fishing activities, affect this part of the lagoon. The aim of this study was to investigate the total mercury (THg) incidence in sediments and Nassarius reticulatus gastropods in order to assess its distribution and evaluate the level of contamination.

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Background: Endoscopy represents the gold standard for the diagnosis of Helicobacter pylori infection. We evaluated three noninvasive tests in a group of children: the immunoassay for detection of H. pylori stool antigen, the polimerase chain reaction for identification of bacterial DNA on the oral cavity and the serum specific antibodies.

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Genome heterogeneity may be related to the wide variability of clinical and pathological features in hepatitis C virus (HCV)-related chronic liver disease. This paper addresses the possible association between HCV subtypes and clinical and histological features of chronically infected patients. Sixty-eight consecutive liver biopsies of chronic hepatitis constituted the basis of the study.

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Aims: The presence of ground glass hepatocytes in a liver biopsy may be related to different conditions, including fibrinogen storage disease. Three types of fibrinogen storage disease have been described, namely types I, II and III. Type I is an hereditary hypofibrinogenaemia genetically characterized by a mutant variant of the fibrinogen molecule designated as fibrinogen Brescia, consistent with a gamma284 Gly-->Arg mutation.

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Aims: To characterize and select Lactobacillus strains for properties that would make them a good alternative to the use of antibiotics to treat human vaginal infections.

Methods And Results: Ten Lactobacillus strains belonging to four different Lactobacillus species were analysed for properties relating to mucosal colonization or microbial antagonism (adhesion to human epithelial cells, hydrogen peroxide production, antimicrobial activity towards Gardnerella vaginalis and Candida albicans and coaggregation with pathogens). The involvement of electrostatic interactions and the influence of bacterial metabolic state in the binding of lactobacilli to the cell surface were also studied.

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TT virus is a recently discovered virus, of which the pathogenetic potential is still uncertain. The present paper describes the histopathological features of a case of TT virus-related acute recurrent hepatitis. The patient is a 28-year-old woman with no history of drug or alcohol abuse, presenting with repeated episodes of hypertransaminasemia evidenced during the last 4 years.

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Introduction: TT virus has been recently isolated in Japan in patients with acute and chronic non-A/non-G hepatitis. Its possible etiopathogenetic role in causing hepatitis has been initially taken in consideration. On the contrary, more recent studies deny the importance of TT virus in causing liver damage.

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Ten strains of lactobacilli were evaluated for the administration of viable microorganisms to restore the normal indigenous flora in the treatment of urogenital tract infections (UTI) in women. As the strains considered are facultative anaerobes, optimization of the production process was particularly critical to preserve bacterial viability. The microorganisms were formulated in single- and double-layer vaginal tablets.

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The viral protein 2A of hepatitis A virus (HAV) lacks the conserved 18 aa sequence found in other picornavirus proteases; hence, it is unclear whether the induction of CPE by culture-adapted HAV strains is due to 2A-mediated activity. Moreover, the cleavage sites and actual borders of HAV 2A are not known. Accordingly, a nested series of cDNA sequences encoding the segment of the HAV polyprotein (aa 760-1087) were linked to the 5'-UTR of poliovirus type 2 (Lansing strain) and inserted downstream of the gene encoding human growth hormone (GH).

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Extrahepatic neoplasms metastatic to the liver histologically are often indistinguishable from hepatocellular carcinoma (HCC). The differential diagnosis between HCC and metastatic liver tumours can be even more difficult in ultrasound guided fine-needle biopsies. Purpose of the present study was to investigate the utility of immunohistochemical staining with polyclonal anticarcinoembryonic antigen (pCEA) antibody and of in situ hybridization (ISH) revealing human albumin mRNA, with emphasis on tissues obtained via fine-needle procedure.

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