Publications by authors named "Marta Puzzono"

Pancreatic ductal adenocarcinoma (PDAC) is one of the most lethal cancers with patients having unresectable or metastatic disease at diagnosis, with poor prognosis and very short survival. Given that genetic variation within autophagy-related genes influences autophagic flux and susceptibility to solid cancers, we decided to investigate whether 55,583 single nucleotide polymorphisms (SNPs) within 234 autophagy-related genes could influence the risk of developing PDAC in three large independent cohorts of European ancestry including 12,754 PDAC cases and 324,926 controls. The meta-analysis of these populations identified, for the first time, the association of the BID variant with an increased risk of developing the disease (OR = 1.

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  • This study looked at people with a specific type of cancer called pancreatic ductal adenocarcinoma (PDAC) and whether their family history affects recommendations for health check-ups.
  • It compared two groups: one that carries certain genetic risks for PDAC and another that does not.
  • The results showed that while many people with genetic risks had no close family history of PDAC, those who did were more likely to have family members with the disease, suggesting family history is important in understanding cancer risk.
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Introduction: Individuals with familial adenomatous polyposis (FAP) have an almost 20% lifetime risk of duodenal adenocarcinoma, currently the leading cause of death in FAP. The Spigelman staging system provides guidance on the surveillance intervals and timing of prophylactic surgery. Still, its accuracy in predicting duodenal and papillary cancer development has not been systematically evaluated.

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Introduction: Pancreatic cancer (PC) surveillance of high-risk individuals (HRI) is becoming more common worldwide, aiming at anticipating PC diagnosis at a preclinical stage. In 2015, the Italian Registry of Families at Risk of Pancreatic Cancer was created. We aimed to assess the prevalence and incidence of pancreatic findings, oncological outcomes, and harms 7 years after the Italian Registry of Families at Risk of Pancreatic Cancer inception, focusing on individuals with at least a 3-year follow-up or developing events before.

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  • Modern non-Africans have 1-3% Neandertal DNA due to interbreeding events that occurred 50,000-60,000 years ago, which may affect traits linked to diseases like pancreatic ductal adenocarcinoma (PDAC).
  • In this study, researchers examined how specific Neandertal-related genetic variations (aSNPs) correlate with PDAC risk in European and East Asian populations, using data from over 200,000 individuals.
  • While no significant link was found in Europeans, a specific allele in East Asians was associated with a 35% increased risk of developing PDAC, suggesting only a limited role of Neandertal genes in this cancer's risk.
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Pancreatic cancer has an incidence that almost matches its mortality. Only a small number of risk factors and 33 susceptibility loci have been identified. so Moreover, the relative rarity of pancreatic cancer poses significant hurdles for research aimed at increasing our knowledge of the genetic mechanisms contributing to the disease.

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Background: Early-onset pancreatic cancer (EOPC) represents 5-10% of all pancreatic ductal adenocarcinoma (PDAC) cases, and the etiology of this form is poorly understood. It is not clear if established PDAC risk factors have the same relevance for younger patients. This study aims to identify genetic and non-genetic risk factors specific to EOPC.

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  • A multidisciplinary group of 69 experts created the first evidence-based consensus recommendations for managing early-onset colorectal cancer (eoCRC) since existing guidelines are not age-specific.
  • They utilized a Delphi methodology, achieving an 80% consensus on 31 important statements covering diagnosis, genetics, therapy, and more, emphasizing the need for risk stratification and genetic testing for patients under 50.
  • The recommendations highlight that treatments for eoCRC should generally align with those for later-onset cases, but also point out knowledge gaps that require further research, including optimal screening age and post-treatment care.
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  • The study investigates the genetic factors contributing to pancreatic ductal adenocarcinoma (PDAC) by analyzing low-penetrance genetic variants in 29 familial PDAC-associated genes.
  • A large-scale analysis was conducted on 14,666 PDAC cases and 221,897 controls, examining 7,745 single nucleotide polymorphisms (SNPs).
  • The rs1412832 polymorphism in the CDKN2B-AS1/ANRIL gene was found to significantly increase PDAC risk, emphasizing the importance of genetic variability in the 9p21.3 region for understanding PDAC development.
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  • This study focused on how Italian gastroenterologists manage patients with hereditary colorectal cancer syndromes and how the SARS-CoV-2 pandemic impacted their practices.
  • Among the 121 clinicians surveyed, many gathered family histories for genetic risk assessment, but only a small percentage utilized online predictive tools or offered specialized endoscopy and surgeries.
  • The pandemic led to reduced clinician workloads and delays in surveillance for nearly half of the respondents, highlighting the urgent need to resume endoscopic surveillance to prevent serious health consequences.
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Background: Early-onset colorectal cancer (eoCRC), defined as a colorectal cancer (CRC) in patients younger than 50 years old, shows an increasing incidence worldwide in the latest years. The role of exogenous factors associated with CRC has been largely overlooked in eoCRC. Here, we conducted a case-control study to evaluate the diet and the lifestyle habits in an Italian population of patients with eoCRC, compared to age-matched healthy controls (HCs).

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Although 21 pancreatic cancer susceptibility loci have been identified in individuals of European ancestry through genome-wide association studies (GWASs), much of the heritability of pancreatic cancer risk remains unidentified. A recessive genetic model could be a powerful tool for identifying additional risk variants. To discover recessively inherited pancreatic cancer risk loci, we performed a re-analysis of the largest pancreatic cancer GWAS, the Pancreatic Cancer Cohort Consortium (PanScan) and the Pancreatic Cancer Case-Control Consortium (PanC4), including 8,769 cases and 7,055 controls of European ancestry.

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The incidence of early-onset colorectal cancer, defined as colorectal cancer occurring in young adults under the age of 50, is increasing globally. Knowledge of the etiological factors in young adults is far from complete. Questionable eoCRCs' exogenous factors are represented by processed meat, sugary drinks, alcohol, Western dietary pattern, overweight and obesity, physical inactivity, and smoking, though with heterogeneous results.

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Genetic factors play an important role in the susceptibility to pancreatic cancer (PC). However, established loci explain a small proportion of genetic heritability for PC; therefore, more progress is needed to find the missing ones. We aimed at identifying single nucleotide polymorphisms (SNPs) affecting PC risk through effects on micro-RNA (miRNA) function.

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  • The study examines the relationship between mitochondrial metabolism and pancreatic ductal adenocarcinoma (PDAC) risk, highlighting a lack of previous systematic investigations into the genetic variability associated with this link.
  • A two-phase analysis was conducted on a large group of almost 56,000 individuals, focusing on both mitochondrial and nuclear genetic variations related to mitochondrial function.
  • The results showed no significant association between genetic variations (n-mtSNPs or mtSNPs) and PDAC risk, suggesting that mitochondrial metabolism may not play a significant role in PDAC etiology despite prior hypotheses.
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Background Cirrhosis leads to portal hypertension and to the consequent formation of spontaneous portosystemic shunts (SPSSs), leading to complications related to the diversion of portal blood into the systemic circulation, which is called portosystemic shunt syndrome. Purpose To investigate the characteristics of patients with cirrhosis and an SPSS and secondarily to assess the prognostic impact of SPSSs on portal hypertension-related complications and transplant-free survival. Materials and Methods A retrospective database review of patients with cirrhosis (observed from March 2015 to July 2019) was performed to identify patients with CT imaging and outcomes data.

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The scientific data to guide the management of Peutz-Jeghers syndrome (PJS) are sparse. The available evidence has been reviewed and discussed by diverse medical specialists in the field of PJS to update the previous guideline from 2010 and formulate a revised practical guideline for colleagues managing PJS patients. Methods: Literature searches were performed using MEDLINE, Embase, and Cochrane.

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  • Early-onset colorectal cancer (eoCRC) is becoming more common, particularly in patients diagnosed before age 50, prompting a study to compare it with late-onset colorectal cancer (loCRC).
  • The research involved analyzing clinical features, such as age, history, and symptoms, from 54 eoCRC patients and 494 loCRC patients to identify risk factors and differences.
  • Results revealed that eoCRC patients had significantly longer delays in diagnosis, with factors like family history playing a critical role in eoCRC risk, while lifestyle factors such as smoking and alcohol consumption were not linked to eoCRC.
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Background: The role of microbiota in Lynch syndrome (LS) is still under debate. We compared oral and fecal microbiota of LS saliva and stool samples with normal healthy controls (NHC).

Methods: Total DNA was purified from feces and saliva to amplify the V3-V4 region of the 16s rRNA gene.

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Spontaneous porto-systemic shunts (SPSS) are frequent in liver cirrhosis and their prevalence increases as liver function deteriorates, probably as a consequence of worsening portal hypertension, but without achieving an effective protection against cirrhosis' complications. Several types of SPSS have been described in the literature, each one associated with different clinical manifestations. In particular, recurrent or persistent hepatic encephalopathy is more frequent in patients with splenorenal shunt, while the presence of gastric varices and consequently the incidence of variceal bleeding is more common in gastrorenal shunt.

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Background: Nonceliac gluten sensitivity (NCGS) is an emergent condition, the framework of which is yet unclear, whereas the diagnosis is suggested only by gluten-dependent symptoms after excluding wheat allergy and celiac disease (CD). Our goal was to highlight intestinal, systemic, and oral alterations to clarify the NCGS pathogenesis and identify new diagnostic tools.

Study: A total of 60 NCGS patients, 20 untreated CD, 20 treated CD, and 20 healthy volunteers were recruited.

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Nickel (Ni) is often the trigger of irritable bowel syndrome (IBS)-like gastrointestinal disorders: its ingestion may cause allergic contact mucositis, identifiable by means of oral mucosa patch test (omPT). OmPT effectiveness has been proven, but it is still an operator-dependent method. Laser Doppler perfusion imaging (LDPI) was tested to support omPT in Ni allergic contact mucositis diagnosis.

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