95 research outputs found

    Overexpression of squamous cell carcinoma antigen variants in hepatocellular carcinoma

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    Pathogenetic mechanisms of hepatocellular carcinoma (HCC) are stil unclear and new tools for diagnostic and therapeutic purposes are ongoing. We have assessed whether squamous cell carcinoma antigen (SCCA), a serpin overexpressed in neoplastic cells of epithelial origin, is also expressed in liver cancer. Squamous cell carcinoma antigen was evaluated by immunohistochemistry in 65 HCCs of different aetiology and in 20 normal livers. Proliferative activity was assessed using MIB-1 antibody. In 18 surgical samples, tumour and nontumour liver tissue was available for SCCA cDNA amplification and sequencing. Squamous cell carcinoma antigen was detected in 55 out of 65 (85%) tumour specimens, but in none of the 20 controls. In the majority of the cases, the positive signal was found in the cytoplasm of more than 50% of the hepatocytes. Low or undetectable SCCA (score less than or equal to1) was associated to lower MIB-1 labelling index, compared to cases with SCCA score greater than or equal to2 (mean +/-s.d.: 2%+/-2.4 vs 7.5%+/-10.3, P<0.05). Squamous cell carcinoma antigen mRNA could be directly sequenced in 14 out of 18 liver tumours but in none of the corresponding nontumour samples. From sequence alignment, a novel SCCA1 variant (G(351) to A) was identified in five cases, while SCCA1 was revealed in six cases and SCCA2 in three cases. In conclusion, SCCA variants are overexpressed in HCC, independently of tumour aetiology. A novel SCCA1 variant has been identified in one third of liver tumours

    Development and Validation of a New Prognostic System for Patients with Hepatocellular Carcinoma

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    BACKGROUND: Prognostic assessment in patients with hepatocellular carcinoma (HCC) remains controversial. Using the Italian Liver Cancer (ITA.LI.CA) database as a training set, we sought to develop and validate a new prognostic system for patients with HCC. METHODS AND FINDINGS: Prospective collected databases from Italy (training cohort, n = 3,628; internal validation cohort, n = 1,555) and Taiwan (external validation cohort, n = 2,651) were used to develop the ITA.LI.CA prognostic system. We first defined ITA.LI.CA stages (0, A, B1, B2, B3, C) using only tumor characteristics (largest tumor diameter, number of nodules, intra- and extrahepatic macroscopic vascular invasion, extrahepatic metastases). A parametric multivariable survival model was then used to calculate the relative prognostic value of ITA.LI.CA tumor stage, Eastern Cooperative Oncology Group (ECOG) performance status, Child-Pugh score (CPS), and alpha-fetoprotein (AFP) in predicting individual survival. Based on the model results, an ITA.LI.CA integrated prognostic score (from 0 to 13 points) was constructed, and its prognostic power compared with that of other integrated systems (BCLC, HKLC, MESIAH, CLIP, JIS). Median follow-up was 58 mo for Italian patients (interquartile range, 26-106 mo) and 39 mo for Taiwanese patients (interquartile range, 12-61 mo). The ITA.LI.CA integrated prognostic score showed optimal discrimination and calibration abilities in Italian patients. Observed median survival in the training and internal validation sets was 57 and 61 mo, respectively, in quartile 1 (ITA.LI.CA score 64 1), 43 and 38 mo in quartile 2 (ITA.LI.CA score 2-3), 23 and 23 mo in quartile 3 (ITA.LI.CA score 4-5), and 9 and 8 mo in quartile 4 (ITA.LI.CA score &gt; 5). Observed and predicted median survival in the training and internal validation sets largely coincided. Although observed and predicted survival estimations were significantly lower (log-rank test, p &lt; 0.001) in Italian than in Taiwanese patients, the ITA.LI.CA score maintained very high discrimination and calibration features also in the external validation cohort. The concordance index (C index) of the ITA.LI.CA score in the internal and external validation cohorts was 0.71 and 0.78, respectively. The ITA.LI.CA score's prognostic ability was significantly better (p &lt; 0.001) than that of BCLC stage (respective C indexes of 0.64 and 0.73), CLIP score (0.68 and 0.75), JIS stage (0.67 and 0.70), MESIAH score (0.69 and 0.77), and HKLC stage (0.68 and 0.75). The main limitations of this study are its retrospective nature and the intrinsically significant differences between the Taiwanese and Italian groups. CONCLUSIONS: The ITA.LI.CA prognostic system includes both a tumor staging-stratifying patients with HCC into six main stages (0, A, B1, B2, B3, and C)-and a prognostic score-integrating ITA.LI.CA tumor staging, CPS, ECOG performance status, and AFP. The ITA.LI.CA prognostic system shows a strong ability to predict individual survival in European and Asian populations

    Nonagenarians in Hyperpolypharmacy: relationship between the level of drug interactions and sociodemographic, clinical, and functional characteristics

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    Aim: This research aimed to study the association of drug interactions and sociodemographic, clinical, and functional characteristics in nonagenarians in hyperpolypharmacy. Methods: This was a secondary analysis of an evaluation performed by the Multiprofessional Care for the Oldest-old Project in 2016, with participants identified in hyperpolypharmacy. Results: Results revealed that 69% of 29 participants had at least one major drug interaction, 41% had 10 or more moderate interactions, and 59% had minor interactions. The study revealed significant relationships for major drug interactions with the characteristics of recurrent urinary tract infections, anxiety, and palpitations. The study found near significance for white colour, not good general health and appetite, depression, and impaired cognition. For moderate drug interaction, findings showed a relationship near significance for females, perception of not good general health and appetite, hypertension, diabetes, urinary infection, depression scale change, agitation, pain, fatigue, and a fear of falling.&nbsp; For minor drug interactions, the study revealed significant findings for an association with depression, and apathy or sleepiness.&nbsp; There were findings near significance for an association with white colour, diabetes, agitation, pain, fatigue, and cough.&nbsp; Conclusion: Drug interactions are highly prevalent among nonagenarians in hyperpolypharmacy, with clinical and quality of life impact. Thus, they must be constantly evaluated for the presence of drug interactions at all levels of care, whether in primary care or in specialized care. A study with larger sample size and longitudinal contour is proposed to prove the importance of our observations

    Years of life that could be saved from prevention of hepatocellular carcinoma

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    BACKGROUND: Hepatocellular carcinoma (HCC) causes premature death and loss of life expectancy worldwide. Its primary and secondary prevention can result in a significant number of years of life saved. AIM: To assess how many years of life are lost after HCC diagnosis. METHODS: Data from 5346 patients with first HCC diagnosis were used to estimate lifespan and number of years of life lost after tumour onset, using a semi-parametric extrapolation having as reference an age-, sex- and year-of-onset-matched population derived from national life tables. RESULTS: Between 1986 and 2014, HCC lead to an average of 11.5 years-of-life lost for each patient. The youngest age-quartile group (18-61 years) had the highest number of years-of-life lost, representing approximately 41% of the overall benefit obtainable from prevention. Advancements in HCC management have progressively reduced the number of years-of-life lost from 12.6 years in 1986-1999, to 10.7 in 2000-2006 and 7.4 years in 2007-2014. Currently, an HCC diagnosis when a single tumour <2 cm results in 3.7 years-of-life lost while the diagnosis when a single tumour 65 2 cm or 2/3 nodules still within the Milan criteria, results in 5.0 years-of-life lost, representing the loss of only approximately 5.5% and 7.2%, respectively, of the entire lifespan from birth. CONCLUSIONS: Hepatocellular carcinoma occurrence results in the loss of a considerable number of years-of-life, especially for younger patients. In recent years, the increased possibility of effectively treating this tumour has improved life expectancy, thus reducing years-of-life lost

    Patterns of hepatocellular carcinoma development in hepatitis B virus and hepatitis C virus related cirrhosis

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    Abstract To compare incidence, risk factors and morphologic pattern of hepatocellular carcinoma (HCC) development in hepatitis B virus (HBV) and hepatitis C virus (HCV) related cirrhosis, 401 patients were followed prospectively by periodic ultrasound examination for 14-189 months (mean: 84.8+/-36.7). During follow-up, 77 (19.2%) patients developed HCC, with 5 and 10 year cumulative incidence of 10 and 27.5%, respectively. The risk of HCC was significantly higher in HBV and HCV co-infected patients (P=0.014) compared to those with single HBsAg or anti-HCV (antibodies to hepatitis C virus) positivity. In anti-HCV positive cases the annual risk of HCC increased from 2% in the first 5 year period to 4% in the third 5 year period, while it decreased from 2 to 0% in the same time periods in the HBsAg positive group. By Cox's regression, age above 59 years (P=0.001), male sex (P=0.09), longer duration (P=0.04) and more advanced stage (P=0.01) of cirrhosis, lower platelets count (P=0.001) and higher ALT levels were significant risk factors for HCC in anti-HCV positive patients, while only high alpha-fetoprotein (AFP) levels during follow-up (P=0.04) was a significant risk factor for HCC in HBsAg positive cases. The pattern of HCC was nodular in 63 (81.8%) patients and infiltrating in 14 (18.2%), and the former type was associated with older age (P=0.0001), longer duration (P=0.002) and more advanced stage (P=0.0001) of cirrhosis but not with the viral etiology of disease. In contrast, development of infiltrating HCC was unrelated to age and disease duration and stage, and was associated with male sex (P=0.01), HBV infection (P=0.06) and HBV and HCV co-infection (P=0.0001). Our results indicate different incidence profile, risk factors and patterns of morphogenesis of HCC development in HBV and HCV associated cirrhosis, suggesting different mechanisms of carcinogenesis

    Oxford textbook of hepatology

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