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Pezzolato M, Spada GE, Fragale E, Cutica I, Masiero M, Marzorati C, Pravettoni G. Predictive Models of Psychological Distress, Quality of Life, and Adherence to Medication in Breast Cancer Patients: A Scoping Review. Patient Prefer Adherence 2023; 17:3461-3473. [PMID: 38143947 PMCID: PMC10748751 DOI: 10.2147/ppa.s440148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Accepted: 11/27/2023] [Indexed: 12/26/2023] Open
Abstract
Purpose An interplay of clinical and psychosocial variables affects breast cancer patients' experiences and clinical trajectories. Several studies investigated the role of socio-demographic, clinical, and psychosocial factors in predicting relevant outcomes in breast cancer care, thus developing predictive models. Our aim is to summarize predictive models for specific psychological and behavioral outcomes: psychological distress, quality of life, and medication adherence. Specifically, we aim to map the determinants of the outcomes of interest, offering a thorough overview of these models. Methods Databases (PubMed, Scopus, Embase) have been searched to identify studies meeting the inclusion criteria: a breast cancer patients' sample, development/validation of a predictive model for selected psychological/behavioral outcomes (ie, psychological distress, quality of life, and medication adherence), and availability of English full-text. Results Twenty-one papers describing predictive models for psychological distress, quality of life, and adherence to medication in breast cancer were included. The models were developed using different statistical approaches. It has been shown that treatment-related factors (eg, side-effects, type of surgery or treatment received), socio-demographic (eg, younger age, lower income, and inactive occupational status), clinical (eg, advanced stage of disease, comorbidities, physical symptoms such as fatigue, insomnia, and pain) and psychological variables (eg, anxiety, depression, body image dissatisfaction) might predict poorer outcomes. Conclusion Predictive models of distress, quality of life, and adherence, although heterogeneous, showed good predictive values, as indicated by the reported performance measures and metrics. Many of the predictors are easily available in patients' health records, whereas others (eg, coping strategies, perceived social support, illness perceptions) might be introduced in routine assessment practices. The possibility to assess such factors is a relevant resource for clinicians and researchers involved in developing and implementing psychological interventions for breast cancer patients.
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Affiliation(s)
- M Pezzolato
- Applied Research Division for Cognitive and Psychological Science, European Institute of Oncology, IRCCS, Milan, Italy
- Department of Oncology and Hemato-Oncology, University of Milan, Milan, Italy
| | - G E Spada
- Applied Research Division for Cognitive and Psychological Science, European Institute of Oncology, IRCCS, Milan, Italy
| | - E Fragale
- Applied Research Division for Cognitive and Psychological Science, European Institute of Oncology, IRCCS, Milan, Italy
| | - I Cutica
- Department of Oncology and Hemato-Oncology, University of Milan, Milan, Italy
| | - M Masiero
- Applied Research Division for Cognitive and Psychological Science, European Institute of Oncology, IRCCS, Milan, Italy
- Department of Oncology and Hemato-Oncology, University of Milan, Milan, Italy
| | - C Marzorati
- Applied Research Division for Cognitive and Psychological Science, European Institute of Oncology, IRCCS, Milan, Italy
| | - G Pravettoni
- Applied Research Division for Cognitive and Psychological Science, European Institute of Oncology, IRCCS, Milan, Italy
- Department of Oncology and Hemato-Oncology, University of Milan, Milan, Italy
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Vaz-Luis I, Masiero M, Cavaletti G, Cervantes A, Chlebowski RT, Curigliano G, Felip E, Ferreira AR, Ganz PA, Hegarty J, Jeon J, Johansen C, Joly F, Jordan K, Koczwara B, Lagergren P, Lambertini M, Lenihan D, Linardou H, Loprinzi C, Partridge AH, Rauh S, Steindorf K, van der Graaf W, van de Poll-Franse L, Pentheroudakis G, Peters S, Pravettoni G. ESMO Expert Consensus Statements on Cancer Survivorship: promoting high-quality survivorship care and research in Europe. Ann Oncol 2022; 33:1119-1133. [PMID: 35963481 DOI: 10.1016/j.annonc.2022.07.1941] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Revised: 07/26/2022] [Accepted: 07/29/2022] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND The increased number of cancer survivors and the recognition of physical and psychosocial challenges, present from cancer diagnosis through active treatment and beyond, led to the discipline of cancer survivorship. DESIGN AND METHODS Herein, we reflected on the different components of survivorship care, existing models and priorities, in order to facilitate the promotion of high-quality European survivorship care and research. RESULTS We identified five main components of survivorship care: (i) physical effects of cancer and chronic medical conditions; (ii) psychological effects of cancer; (iii) social, work and financial effects of cancer; (iv) surveillance for recurrences and second cancers; and (v) cancer prevention and overall health and well-being promotion. Survivorship care can be delivered by structured care models including but not limited to shared models integrating primary care and oncology services. The choice of the care model to be implemented has to be adapted to local realities. High-quality care should be expedited by the generation of: (i) focused and shared European recommendations, (ii) creation of tools to facilitate implementation of coordinated care and (iii) survivorship educational programs for health care teams and patients. The research agenda should be defined with the participation of health care providers, researchers, policy makers, patients and caregivers. The following patient-centered survivorship research areas were highlighted: (i) generation of a big data platform to collect long-term real-world data in survivors and healthy controls to (a) understand the resources, needs and preferences of patients with cancer, and (b) understand biological determinants of survivorship issues, and (ii) develop innovative effective interventions focused on the main components of survivorship care. CONCLUSIONS The European Society for Medical Oncology (ESMO) can actively contribute in the efforts of the oncology community toward (a) promoting the development of high-quality survivorship care programs, (b) providing educational material and (c) aiding groundbreaking research by reflecting on priorities and by supporting research networking.
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Affiliation(s)
- I Vaz-Luis
- Breast Cancer Unit, Medical Oncology Department, Gustave Roussy-Cancer Campus, Villejuif; UMR 981, Prédicteurs moléculaires et nouvelles cibles en oncologie, Gustave Roussy-Cancer Campus, Villejuif, France.
| | - M Masiero
- Department of Oncology and Hemato-Oncology, University of Milano, Milan; Applied Research Division for Cognitive and Psychological Science, Istituto Europeo di Oncologia, Milan
| | - G Cavaletti
- Experimental Neurology Unit, School of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy
| | - A Cervantes
- Department of Medical Oncology, INCLIVA, Biomedical Research Institute, University of Valencia, Valencia; CIBERONC, Instituto de Salud Carlos III, Madrid, Spain
| | | | - G Curigliano
- Department of Oncology and Hemato-Oncology, University of Milano, Milan; Division of Early Drug Development, Istituto Europeo di Oncologia, IRCCS, Milan, Italy
| | - E Felip
- Vall d'Hebron University Hospital, Barcelona, Spain
| | - A R Ferreira
- Breast Unit, Champalimaud Clinical Center, Champalimaud Foundation, Lisbon; Catolica Medical School, Universidade Católica Portuguesa, Lisbon, Portugal
| | - P A Ganz
- UCLA Jonsson Comprehensive Cancer Center and UCLA Fielding School of Public Health, Los Angeles, USA
| | - J Hegarty
- School of Nursing and Midwifery, University College Cork, Cork, Ireland
| | - J Jeon
- Exercise Medicine Center for Cancer and Diabetes Patients (ICONS), Department of Sport Industry, Cancer Prevention Center, Yonsei Cancer Center, Shinchon Severance Hospital, Yonsei University College of Medicine, Yonsei University, Seoul, Korea
| | - C Johansen
- Centre for Cancer Late Effect Research (CASTLE), Department of Oncology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - F Joly
- Department of Medical Oncology, Centre François Baclesse, U1086 Anticipe, Unicaen Normandy Universtity, Caen, France
| | - K Jordan
- Department for Hematology, Oncology and Palliative Medicine, Ernst von Bergmann Hospital, Potsdam; Department of Medicine V, Hematology, Oncology and Rheumatology, University of Heidelberg, Heidelberg, Germany
| | - B Koczwara
- Flinders Medical Centre and Flinders University, Adelaide, Australia
| | - P Lagergren
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden; Department of Surgery and Cancer, Imperial College London, London, UK
| | - M Lambertini
- Department of Medical Oncology, U.O. Clinica di Oncologia Medica, IRCCS Ospedale Policlinico San Martino, Genova; Department of Internal Medicine and Medical Specialties (DiMI), School of Medicine, University of Genova, Genova, Italy
| | - D Lenihan
- International Cardio-Oncology Society, Tampa, USA
| | - H Linardou
- Fourth Oncology Department & Comprehensive Clinical Trials Center, Metropolitan Hospital, Athens, Greece
| | | | - A H Partridge
- Dana-Farber Cancer Institute, Harvard Medical School, Boston, USA
| | - S Rauh
- Department of Medical Oncology, Centre Hospitalier Emile Mayrisch, Esch, Luxembourg
| | - K Steindorf
- Division of Physical Activity, Prevention and Cancer, German Cancer Research Center (DKFZ) and National Center for Tumor Diseases (NCT), Heidelberg, Germany
| | - W van der Graaf
- Department of Medical Oncology, Netherlands Cancer Institute, Amsterdam; Department of Medical Oncology, Erasmus MC Cancer institute, Erasmus University Medical Center, Rotterdam
| | - L van de Poll-Franse
- Division of Psychosocial Research & Epidemiology, Department of Psycological Research, The Netherlands Cancer Institute, Amsterdam; Department of Research & Development, Netherlands Comprehensive Cancer Organisation (IKNL), Utrecht; CoRPS-Center of Research on Psychology in Somatic diseases, Department of Medical and Clinical Psychology, Tilburg University, Tilburg, The Netherlands
| | - G Pentheroudakis
- European Society for Medical Oncology (ESMO), Lugano, Switzerland
| | - S Peters
- European Society for Medical Oncology (ESMO), Lugano, Switzerland
| | - G Pravettoni
- Department of Oncology and Hemato-Oncology, University of Milano, Milan; Applied Research Division for Cognitive and Psychological Science, Istituto Europeo di Oncologia, Milan
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Masiero M, Vojtasova E, Boulos P, Zammarchi F, van Berkel P, Crake C, Coviello C, Rowe C. Ultrasound-induced cavitation enhances therapeutic efficacy of AXL-targeting ADC leading to improved survival in a human xenograft model of renal cancer. Eur J Cancer 2022. [DOI: 10.1016/s0959-8049(22)01068-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Casini C, Monzani D, Masiero M, Mazzocco K, Grasso R, Fotiadis D, Memos N, Keramida K, Curigliano G, Cipolla C, Cardinale D, Papakonstantinou A, Constantinidou A, Conti C, Pravettoni G. 1432P Incorporating psycho-social factors in cancer treatment adverse events studies. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.1535] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Masiero M, Mazzocco K, Harnois C, Cropley M, Pravettoni G. From Individual To Social Trauma: Sources Of Everyday Trauma In Italy, The US And UK During The Covid-19 Pandemic. J Trauma Dissociation 2020; 21:513-519. [PMID: 32654633 DOI: 10.1080/15299732.2020.1787296] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
The heterogeneity of COVID-19 experience and response for each individual is irrefutable; nevertheless, similarities can be observed between countries with respect to people's psychological responses. The main aim of this Commentary is to provide a cultural perspective of the sources of trauma, at the individual and social level, in three different countries: Italy, US and UK. The evidence from previous outbreaks, such as SARS, H1N1 flu, Ebola, and the ongoing Italian, the US, and the UK experience of COVID-19 shows that COVID-19 has introduced not only an individual trauma but also a collective trauma, that researchers should attend to now and in future global emergencies. Future clinical interventions should aim to reconnect dissociated parts both in the individual and in society. This commentary discusses four potential sources of trauma: high-stakes decision fatigue in healthcare professionals, traumatic grief, and bereavement in people who have lost loved ones, loss of roles and identity, and social divisions related to economic shutdown.
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Affiliation(s)
- M Masiero
- Department of Biomedical and Clinical Sciences, University of Milan , Milan, Italy.,Applied Research Division for Cognitive and Psychological Science, European Institute of Oncology , IRCCS, Milan, Italy
| | - K Mazzocco
- Applied Research Division for Cognitive and Psychological Science, European Institute of Oncology , IRCCS, Milan, Italy.,Department of Oncology and Hemato-Oncology, University of Milan , Milan, Italy
| | - C Harnois
- Department of Sociology, Wake Forest University , Winston-Salem, North Carolina, USA
| | - M Cropley
- School of Psychology, Faculty of Health and Medical Sciences, Institute of Medical and Biomedical Education, University of Surrey , Surrey, UK
| | - G Pravettoni
- Applied Research Division for Cognitive and Psychological Science, European Institute of Oncology , IRCCS, Milan, Italy.,Department of Oncology and Hemato-Oncology, University of Milan , Milan, Italy
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Mazzocco K, Masiero M, Mazza M, Radice D, Maisonneuve P, Pravettoni G. 189P Recommendation for “a start to move” program: A 8-week program of incremental physical activity in sedentary breast cancer survivors. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.03.128] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Masiero M, Oliveri S, Cutica I, Monzani D, Faccio F, Mazzocco K, Pravettoni G. The psychometric properties of the Italian adaptation of the Health Orientation Scale (HOS). Health Qual Life Outcomes 2020; 18:69. [PMID: 32169082 PMCID: PMC7071689 DOI: 10.1186/s12955-020-01298-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Accepted: 02/14/2020] [Indexed: 02/07/2023] Open
Abstract
Background A novel approach suggested that cognitive and dispositional features may explain in depth the health behaviors adoption and the adherence to prevention programs. The Health Orientation Scale (HOS) has been extensively used to map the adoption of health and unhealthy behaviors according to cognitive and dispositional features. Coherently, the main aim of the current research was to assess the factor structure of the Italian version of the HOS using exploratory and confirmatory factor analysis and testing the construct validity of the scale by assessing differences in health orientations between tobacco cigarette smokers and nonsmokers. Method The research protocol was organized in two studies. Study 1 evaluated the dimensionality of the HOS in a sample of Northern Italian healthy people. Three hundred and twenty-one participants were enrolled; they were 229 women (71.3%) and 92 men (28.7%). In Study 2, the factor structure and construct validity of the HOS Italian version was assessed trough confirmatory factor analysis using a tobacco cigarette smokers and nonsmokers population. Two hundred and nineteen participants were enrolled; they were 164 women (75.2%) and 55 men (24.8%). Results In Study 1, a seven factors solution was obtained explaining 60% of cumulative variance instead of 10 factors solution of the original version of the HOS. In Study 2, the factor structure of the Italian version of the HOS was confirmed and applied to the smokers and nonsmokers; nonsmokers reported higher values than smokers in Factor 1 (MHPP) [t (208) = − 2.739 p < .007] (CI 95–4.96% to −.809), Factor 2 (HES) [t (209) = − 3.387 p < .001] (CI 95–3.93% to -. 1.03), Factor 3 (HIC) [t(213) = − 2.468 p < .014] (CI 95–2.56% to −.28) and Factor 7 (HEX) [t(217) = − 3.451 p < .001] (CI 95%- 1.45 to .39). Conclusions Results of the Italian adaptation of HOS lead to a partial redistribution of items and confirmed 7 subscales to distinguish psycho-cognitive dispositional dimensions involved in health orientation styles.
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Affiliation(s)
- M Masiero
- Department of Biomedical and Clinical Sciences, University of Milan, Via Festa del Perdono 7, Milan, Italy. .,Applied Research Division for Cognitive and Psychological Science, European Institute of Oncology, IRCSS, Milan, Italy.
| | - S Oliveri
- Applied Research Division for Cognitive and Psychological Science, European Institute of Oncology, IRCSS, Milan, Italy.,Department of Oncology and Hemato-Oncology, University of Milan, Milan, Italy
| | - I Cutica
- Applied Research Division for Cognitive and Psychological Science, European Institute of Oncology, IRCSS, Milan, Italy.,Department of Oncology and Hemato-Oncology, University of Milan, Milan, Italy
| | - D Monzani
- Applied Research Division for Cognitive and Psychological Science, European Institute of Oncology, IRCSS, Milan, Italy.,Department of Oncology and Hemato-Oncology, University of Milan, Milan, Italy
| | - F Faccio
- Applied Research Division for Cognitive and Psychological Science, European Institute of Oncology, IRCSS, Milan, Italy
| | - K Mazzocco
- Applied Research Division for Cognitive and Psychological Science, European Institute of Oncology, IRCSS, Milan, Italy.,Department of Oncology and Hemato-Oncology, University of Milan, Milan, Italy
| | - G Pravettoni
- Applied Research Division for Cognitive and Psychological Science, European Institute of Oncology, IRCSS, Milan, Italy.,Department of Oncology and Hemato-Oncology, University of Milan, Milan, Italy
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Gorini A, Masiero M, Pravettoni G. Patient decision aids for prevention and treatment of cancer diseases: are they really personalised tools? Eur J Cancer Care (Engl) 2016; 25:936-960. [DOI: 10.1111/ecc.12451] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/29/2015] [Indexed: 11/27/2022]
Affiliation(s)
- A. Gorini
- Department of Oncology and Hemato-Oncology; University of Milan; Milano Italy
- European Institute of Oncology; Milan Italy
| | - M. Masiero
- Department of Oncology and Hemato-Oncology; University of Milan; Milano Italy
- European Institute of Oncology; Milan Italy
| | - G. Pravettoni
- Department of Oncology and Hemato-Oncology; University of Milan; Milano Italy
- European Institute of Oncology; Milan Italy
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Abstract
In the present medical context, the evaluation and the monitoring of factors other than mere physical symptoms are an urgent demand. In particular, the issue of quality of life (QoL) has become a relevant target in the treatment of cancer. However, the approach towards these aspects is not well standardized and the actual applications in a concrete setting are fragmented, left to personal or local initiative. If this is true for QoL in general, it is particularly relevant in the specific field of nutrition. Indeed, though the growing awareness of a correlation between chronic diseases and dietary habits has led to an increased interest in nutrition, both before and after cancer, very little is still known about the methods that measure this important variable of the QoL. Indeed, good nutrition may have a relevant impact on QoL, positively affecting both the physical and psychological well-being. Targeting this issue implies using proper instruments to both monitor and educate the patients. Hence, we argue that it is vital for oncologists to be able to individuate the best tool available in a specified context, so as to achieve an important goal with little effort, also adopting standardized strategies proved to be efficacious. In this framework, we briefly reviewed the tools more frequently reported in the scientific literature. We suggest that through a cognitive approach, it is possible to achieve important clinical targets, initially by understanding the patients' needs, values, and psychosocial factors involved in nutritional behaviour and food-related decisions, in order to develop a personalized approach. Hence, this is the only way to support concrete actions for promoting healthier diets, thus preventing recurrences, monitoring chronic conditions, and supporting a good QoL.
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Affiliation(s)
- C Lucchiari
- Università degli Studi di Milano, Milan, Italy
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Masiero M, Minuzzo S, Pusceddu I, Moserle L, Persano L, Agnusdei V, Tosello V, Basso G, Amadori A, Indraccolo S. Notch3-mediated regulation of MKP-1 levels promotes survival of T acute lymphoblastic leukemia cells. Leukemia 2011; 25:588-98. [PMID: 21263446 DOI: 10.1038/leu.2010.323] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Activation of the Notch pathway occurs commonly in T acute lymphoblastic leukemia (T-ALL) because of mutations in Notch1 or Fbw7 and is involved in the regulation of cell proliferation and survival. Deregulated Notch3 signalling has also been shown to promote leukemogenesis in transgenic mice, but the targets of Notch3 in human T-ALL cells remain poorly characterized. Here, we show that Notch3 controls levels of mitogen-activated protein kinase (MAPK) phosphatase 1 (MKP-1). In a model of T-ALL cell dormancy, both Notch3 activation and MKP-1 expression were upregulated in aggressive compared with dormant tumors, and this inversely correlated with the levels of phosphorylated p38 and extracellular signal-regulated kinase1/2 (ERK1/2) MAPKs, two canonical MKP-1 targets. We demonstrate that MKP-1 protein levels are regulated by Notch3 in T-ALL cell lines because its silencing by RNA interference or treatment with γ-secretase inhibitors induced strong MKP-1 reduction whereas activation of Notch3 signalling had the opposite effect. Furthermore, MKP-1 has an important role in T-ALL cell survival because its attenuation by short hairpin RNA significantly increased cell death under stress conditions. This protective function has a key role in vivo, as MKP-1-deficient cells showed impaired tumorigenicity. These results elucidate a novel mechanism downstream of Notch3 that controls the survival of T-ALL cells.
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Affiliation(s)
- M Masiero
- Department of Oncology and Surgical Sciences, University of Padova, Padova, Italy
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11
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Abstract
AIMS The milk acidification rate of Streptococcus thermophilus strains can be affected by several factors, one of which is the hydrolysis of urea by the urease complex. To evaluate the technological suitability of S. thermophilus strains deprived of urease activity in milk fermentation, the genetic cluster related to urease enzymatic activity has been characterized in the type strain DSM 20167T. METHODS AND RESULTS Amplification of the urease genes of S. thermophilus DSM 20167T was developed on the basis of the urease gene cluster of the phylogenetically related S. salivarius. Nucleotide sequencing revealed the presence of eight open reading frames, which were most homologous to ureABC (structural genes) and ureI, ureEFGD (accessory genes) of S. salivarius and other ureolytic bacteria. Reverse transcriptase PCR experiments were in agreement with an operon organization for the eight genes (ureIABCEFGD). A food grade mutant A16 (DeltaureC3) with a 693 bp in-frame deletion in ureC gene exhibited a urease negative (Ure-) phenotype. Unlike the wild-type strain, the acidification rate of the mutant in reconstituted skimmed milk was not affected by the presence of urea or nickel ions. A small-scale yoghurt fermentation trials were carried out using the wild-type or the Ure- mutant A16 (DeltaureC3) in co-culture with Lactobacillus delbrueckii subsp. bulgaricus ATCC 11842 in presence of urea. The result obtained underlines that when the Ure- mutant was used as a co-starter the acidification rate was higher than that obtained using the wild-type strain. CONCLUSIONS The study provides the first genetic characterization and the technological implication of S. thermophilus DSM 20617T urease activity. SIGNIFICANCE AND IMPACT OF THE STUDY The detrimental effect of ureolytic activity on the rate of milk acidification was evaluated and superseded using a food-grade Ure- recombinant strain. Small-scale yoghurt production trials highlighted the positive role of a Ure-S. thermophilus mutant as a co-starter in milk fermentations. Moreover, the vector pMI108 developed for the construction of the Ure- strain, should be considered as a potential tool for the generation of Ure- dairy S. thermophilus strains selected for other relevant technological properties but characterized by the undesirable ureolytic phenotype.
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Affiliation(s)
- D Mora
- Dipartimento di Scienze e Tecnologie Alimentari e Microbiologiche, Università degli Studi di Milano, Milano, Italy.
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Cantaro S, Milan Manani S, Marcon R, Bonfante L, Masiero M, D'Angelo A, Calò L. Urinary excretion of vasoactive substances in chronic renal failure. Clin Nephrol 2001; 55:393-9. [PMID: 11393385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/20/2023] Open
Abstract
To investigate the pathophysiological role of vasoactive substances in the progression of chronic renal disease, we measured the 24-hour urinary excretion of prostaglandin 6-keto F1alpha, thromboxane B2, NOx, cGMP and ET-1 in 26 patients with chronic renal failure under conservative treatment and in 40 control subjects. Urinary 6-keto PgF1alpha, TxB2 and cyclic GMP were evaluated by RIA, and ET-1 was assayed by EIA. NOx were evaluated using a colorimetric assay as nitrate/nitrite. Urinary excretion of prostaglandin 6-keto F1alpha averaged 18.1 +/- 20.9 ng/g Ucreat in patients vs. 240.9 +/- 257.3 in controls (p < 0.0001), thromboxane B2 422 +/- 374 ng/g Ucreat in patients vs. 967 +/- 589 in controls (p < 2x 10(-5)), NOx 7.07 +/- 5.54 mg/g Ucreat in patients vs. 9.79 +/- 3.77 in controls (p < 0.01), cGMP 310 +/- 200 pg/g Ucreat in patients vs. 488 +/- 241 in controls (p < 0.001). In contrast, ET-1 urinary excretion was almost doubled in patients (13.45 +/- 5.84 ng/g of Ucreat) in comparison with controls (6.84 +/- 2.81 p < 1x10(-5)). While in control subjects significant correlations between urinary excretions of prostaglandin 6-keto F1alpha and thromboxane B2 (r = 0.69, p < 0.001) or NOx and ET-1 (r = 0.54, p < 0.001) were present, in patients only the relationship between urinary excretions of prostaglandin 6-keto F1alpha and thromboxane B2 (r = 0.53, p < 0.01) was retained. Our data suggest that in the normal kidney a balance between prostaglandin I2 and thromboxane A2, or nitric oxide and endothelin-1 is present, which contributes to hemodynamic regulation and protects this organ from ischemic damage. This balance is abolished in CRF, where a large increment of vasopressor agent endothelin is present, which, joined to a prevalent decrease of prostaglandin I2 synthesis, could contribute to the ischemic and fibrogenetic damage of the kidney, leading to progression of renal disease.
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Affiliation(s)
- S Cantaro
- Division of Nephrology, University of Padova, Italy.
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Montini G, Sacchetto E, Murer L, Dall'Amico R, Masiero M, Passerini-Glazel G, Zacchello G. Renal glomerular response to the inhibition of prostaglandin E2 synthesis and protein loading after the relief of unilateral ureteropelvic junction obstruction. J Urol 2000; 163:556-60. [PMID: 10647684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/15/2023]
Abstract
PURPOSE We investigated glomerular filtration rate and renal function reserve after the surgical relief of partial obstruction. MATERIALS AND METHODS We evaluated 4 boys and 1 girl 9 to 14 years old who underwent pyeloplasty because of unilateral ureteropelvic junction obstruction. Contralateral normal kidneys served as controls. The glomerular filtration rate (inulin clearance), and urinary excretion of prostaglandin E2, thromboxane B2 and endothelin were determined at baseline and after a meal of 4 gm./kg. cooked unsalted red meat on day 4 postoperatively. Tests were repeated the following day 1 hour after the oral administration of 20 mg./kg. aspirin, an inhibitor of prostaglandin E2 synthesis. Urine was collected separately through a bladder catheter and another catheter placed in the upper renal pelvis at surgery. RESULTS Glomerular filtration rate at baseline was significantly greater in normal than in surgically treated kidneys (77.2 ml. per minute, range 60 to 98 versus 63.6, range 43 to 78, p = 0.04). Aspirin did not change baseline inulin clearance in normal kidneys but it significantly decreased the glomerular filtration rate in operated renal units (-4% versus -26.4%, p = 0.04). The concentration of all vasoactive compounds was not significantly different in the urine specimens of normal and operated kidneys. The administration of aspirin resulted in a significant decrease in mean urinary prostaglandin E2 excretion plus or minus standard error in operated but not in normal renal units (0.64+/-0.12 ng. per minute versus 0.27+/-0.06, p = 0.04). When expressed as mean versus baseline values, protein induced glomerular hyperfiltration seemed lower in operated than in contralateral intact kidneys (6.9% and 12.4%, respectively). CONCLUSIONS In the immediate postoperative period previously obstructed kidneys maintain renal function via mechanisms that depend on the activation of prostaglandin, mimicking normal renal function. This effect is decreased by drugs that inhibit prostaglandin E2 production. Therefore, renal damage may be present when the glomerular filtration rate appears normal.
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Affiliation(s)
- G Montini
- Department of Pediatrics, University of Padua, Italy
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14
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Gambaro G, Verlato F, Budakovic A, Casara D, Saladini G, Del Prete D, Bertaglia G, Masiero M, Checchetto S, Baggio B. Renal impairment in chronic cigarette smokers. J Am Soc Nephrol 1998; 9:562-7. [PMID: 9555657 DOI: 10.1681/asn.v94562] [Citation(s) in RCA: 88] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
To determine the effect of chronic cigarette smoking on renal function, a cross-sectional study was carried out with 30 subjects who had no known vascular disease risk factor other than cigarette smoking, and 24 age- and sex-matched controls without any vascular risk factor including cigarette smoking. Renal function by radionuclide studies of renal plasma flow, GFR, and plasma endothelin-1 concentration was determined. Compared with nonsmokers, smokers had a renal function impairment characterized by a normal GFR and a significant reduction in renal plasma flow as reflected by MAG3 clearance (199.20 +/- 58.85 ml/min per 1.73 m2 versus 256.54 +/- 60.14 ml/min per 1.73 m2; t = 3.52, P < 0.001). MAG3 clearance was significantly correlated with age and smoking. The renal dysfunction was associated with an increase in plasma endothelin-1 concentration (21.56 +/- 1.15 pmol/L versus 25.01 +/- 3.21 pmol/L; t = 5.00, P < 0.001). Former smokers as well had similar, although milder, abnormalities. In conclusion, cigarette smokers manifest an impairment of renal function, suggesting that smoke may have a detrimental effect on renal function.
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Affiliation(s)
- G Gambaro
- Institute of Internal Medicine, University Hospital, Padua, Italy
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15
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Burra P, Chirizzi L, Cadrobbi R, Calabrese F, Cardin R, Baldan N, Masiero M, Rigotti P. Evaluation of liver function and morphology following ischemia-reperfusion injury in pigs. Transplant Proc 1997; 29:3515-7. [PMID: 9414817 DOI: 10.1016/s0041-1345(97)01002-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- P Burra
- Istituto Chirurgia Generale II, Universitá degli Studi di Padova, Italy
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16
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Murer L, Zacchello G, Dall'Amico R, Masiero M, Montini G, Basso G, Zacchello F. Renal immunohistochemical distribution, plasma levels and urinary excretion of endothelin after kidney transplantation. J Nephrol 1997; 10:318-24. [PMID: 9442445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
We investigated the immunohistochemical distribution of endothelin (ET) in 22 graft biopsies from kidney-transplanted patients. Like normal kidney tissue, 6/22 biopsies showed either no or only very weak ET positivity in the vascular endothelium. In the other 16 cases ET staining was marked on the vascular endothelium and wall (9/16), inflammatory infiltrates (11/16), glomeruli (7/16) and tubules (5/16). ET positivity in glomeruli and inflammatory infiltrates correlated with the degree of glomerular damage and interstitial inflammation but no correlation was found between the immunohistochemical results and the clinical variables considered. ET plasma levels (ET-PL) in patients (5.13 + 1.77 pmol/L) did not differ significantly from age-matched healthy controls (3.76 + 0.93 pmol/L), nor did ET urinary excretion (ET-U/CR-U) (33.94 + 21.89 and 24.94 + 8.5 pmol/mmol/L respectively). Neither ET-PL nor ET-U/CR-U was correlated with histological and immunohistochemical data or with the clinical variables. Our study suggests a potential role of ET as a local pro-inflammatory and growth factor in renal allografts and confirms its importance in the sequence of events involved in the progression of kidney damage.
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Affiliation(s)
- L Murer
- Department of Pediatrics, University of Padova, Italy
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17
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Martini S, Burlina A, Donazzan S, Masiero M, Gabelli C, Previato L, Cortella I, Crepaldi G, Baggio G. 2.P.278 Mild hyperhomocysteinemia correlated to folate status in Italian centenarians. Atherosclerosis 1997. [DOI: 10.1016/s0021-9150(97)88913-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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18
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Gallorini A, Plebani M, Pontisso P, Chemello L, Masiero M, Mantovani G, Alberti A. Serum markers of hepatic fibrogenesis in chronic hepatitis type C treated with alfa-2A interferon. Liver 1994; 14:257-64. [PMID: 7997085 DOI: 10.1111/j.1600-0676.1994.tb00085.x] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Hepatic fibrogenesis is a dynamic process which characterizes the course of chronic hepatitis. It has stimulated interest in the possible effect of interferon therapy on liver fibrosis. We have evaluated a panel of serum markers of fibrogenesis, namely N-terminal procollagen III peptide (PII-INP), C-terminal procollagen I peptide (PICP), laminin and hyaluronate in 35 patients with chronic hepatitis type C, before, during and after interferon treatment. Before treatment, PIIINP was elevated in 8.5%, 44% and 71% of patients with chronic persistent hepatitis, chronic active hepatitis and cirrhosis, respectively, while the corresponding figures for PICP were 0%, 50% and 46%, and for laminin 16.5%, 70% and 71%; hyaluronate was elevated in only five out of seven patients with cirrhosis. Patients with high PIIINP levels at presentation and a persistent response to treatment showed persistent normalization of this parameter, which was not observed in non-responders. In contrast, the other markers showed no significant correlation with interferon response. These results indicate that PIIINP correlates with interferon response in chronic hepatitis type C.
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Affiliation(s)
- A Gallorini
- Istituto di Medicina Clinica, Università di Padova, Italy
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19
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Favaro S, Bonfante L, Giacomini A, Calò L, De Vivo E, Schiavon M, Morandi G, Masiero M, Mussap M, Borsatti A. Microhematuria associated with microproteinuria: an intriguing new clinical entity. Clin Nephrol 1994; 41:56. [PMID: 8137570] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
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20
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Mapp CE, Boniotti A, Masiero M, Plebani M, Burlina A, Papi A, Maestrelli P, Saetta M, Ciaccia A, Fabbri L. Toluene diisocyanate-stimulated release of arachidonic acid metabolites in the organ bath from guinea-pig airways. Eur J Pharmacol 1993; 248:277-80. [PMID: 8293793 DOI: 10.1016/0926-6917(93)90055-u] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
This study was designed to evaluate whether metabolites of arachidonic acid play a role in the contractile response to toluene diisocyanate in isolated guinea pig airways. In control experiments we collected the supernatant from an organ bath over a time period of 2 h, after the addition of toluene diisocyanate (100 and 300 microM), and after the addition of toluene diisocyanate (300 microM) in the presence of indomethacin (5 microM). We measured prostaglandin E2, 6-keto-prostaglandin F1 alpha, prostaglandin F2 alpha, thromboxane B2, leukotriene B4, leukotriene C4/D4/E4/F4 by radioimmunoassays. Levels of prostaglandin F2 alpha and 6-keto-prostaglandin F1 alpha increased significantly after addition of toluene diisocyanate in the absence of indomethacin. These results suggest that prostaglandins are involved in toluene diisocyanate-induced contractions in guinea-pig airways.
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Affiliation(s)
- C E Mapp
- Institute of Occupational Medicine, University of Padua, Italy
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21
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Farinati F, Di Mario F, Plebani M, Cielo R, Fanton MC, Valiante F, Masiero M, De Boni M, Della Libera G, Burlina A. Pepsinogen A/pepsinogen C or pepsinogen A multiplied by gastrin in the diagnosis of gastric cancer? Ital J Gastroenterol 1991; 23:194-6. [PMID: 1751813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Being pepsinogen A (PGA) levels generally reduced and pepsinogen C (PGC) increased in gastric cancer patients, PGA/PGC ratio has been proposed as a useful marker of the tumour. We tested PGA, PGC and Gastrin (G) levels in patients with gastric cancer (39) and, as a control, in patients with epithelial dysplasia (21), chronic atrophic gastritis (57), gastric ulcer (11) or subjects lacking major or minor endoscopic and microscopic changes at gastroscopy (48). PGA and PGA/PGC levels were significantly reduced in gastric cancer patients (p less than 0.005 and p less than 0.0001 respectively with analysis of variance). Gastrin levels were also reduced in the same patients (p less than 0.005). We therefore adopted an index number (PGA x Gastrin) which was also dramatically reduced in gastric cancer (p less than 0.005); using an arbitrarily chosen cut-off, the "marker" showed very high sensitivity (76%), specificity (96%) and overall accuracy (74%, by Youden J test). We therefore suggest the use of the index number PGA x G in the diagnosis of gastric cancer, as the most useful gastrin presently available, to our knowledge.
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Affiliation(s)
- F Farinati
- Cattedra Malattie Apparato Digerente, Università di Padova e Italy
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22
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Vullo C, De Sanctis V, Katz M, Wonke B, Hoffbrand AV, Bagni B, Torresani T, Tolis G, Masiero M, Di Palma A. Endocrine abnormalities in thalassemia. Ann N Y Acad Sci 1990; 612:293-310. [PMID: 2291557 DOI: 10.1111/j.1749-6632.1990.tb24317.x] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- C Vullo
- Department of Pediatrics, Arcispedale S. Anna, Ferrara, Italy
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23
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Plebani M, Faggian D, Masiero M, Giacomini A, Burlina A. CA 19-9 and CA 125 determination by immunoluminometric assay. J Clin Chem Clin Biochem 1990; 28:919-21. [PMID: 2081962 DOI: 10.1515/cclm.1990.28.12.919] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
We evaluated a new immunoluminometric technique (ILMA) for the measurement of the cancer antigens, CA 19-9 and CA 125 in serum. A satisfactory reproducibility was found, coefficients of variation ranging from 4.2 to 7.3% in within-run and between-run assays. The linearity of tests was maintained over a wide concentration range. Mean analytical recovery was 94% for CA 19-9 and 98% for CA 125. A significant agreement between results obtained by immunoradiometric assays and evaluated methods was found both for CA 125 (ILMA = 0.917 IRMA + 1.048; r = 0.966; n = 98) and CA 19-9 (ILMA = 1.156 IRMA + 0.996; r = 0.995; n = 100).
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Affiliation(s)
- M Plebani
- Cattedra e Servizio di Biochimica Clinica, Università di Padova, Italia
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24
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Affiliation(s)
- M Plebani
- Dept. of Clin. Biochem., Univ. of Padova, Italy
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25
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Plebani M, Masiero M, Burlina AP, Chiozza ML, Scanarini M, Burlina A. Measurement of melatonin in blood by radioimmunoassay. Analytical considerations and clinical usefulness. Childs Nerv Syst 1990; 6:220-1. [PMID: 2383877 DOI: 10.1007/bf01850977] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Melatonin assay has proved to be clinically useful for the diagnosis and investigation of several diseases (e.g., Cushing's syndrome, depressive disorders). We have evaluated the analytical performance of a radioimmunoassay for the determination of melatonin in plasma. The interference of some anticoagulants has been investigated, as well as the preliminary extraction of the hormone using a liquid-liquid and a solid-phase extraction method. The variation coefficients of the assay, within and between runs, were between 3.8% and 9.2% and between 4.1% and 10.5%, respectively. The well-documented circadian rhythm of melatonin secretion was confirmed in our healthy subjects. Preliminary results appear to confirm the significance of melatonin measurement in neurosurgical patients.
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Affiliation(s)
- M Plebani
- Department of Clinical Biochemistry, University of Padua, Italy
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26
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Abstract
A fluorescence polarization immunoassay (FPIA) for cyclosporine A (CsA) determination in blood was evaluated. The method demonstrated a good reproducibility both in within-run and between-run assays. The linearity range was 35-990 micrograms/L. Comparison of measurements in patients' whole blood with radioimmunoassay results showed higher estimates by the FPIA despite the good correlation coefficient. Finally, a poor agreement was observed between the evaluated method and the high-performance liquid chromatographic technique for CsA determination.
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Affiliation(s)
- M Plebani
- Department of Clinical Biochemistry, University of Padova, Italy
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27
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Zocca E, Fabbri LM, Boschetto P, Plebani M, Masiero M, Milani GF, Pivirotto F, Mapp CE. Leukotriene B4 and late asthmatic reactions induced by toluene diisocyanate. J Appl Physiol (1985) 1990; 68:1576-80. [PMID: 2161410 DOI: 10.1152/jappl.1990.68.4.1576] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
We investigated whether leukotriene B4 (LTB4) is released from the lungs of sensitized subjects during asthmatic reactions induced by toluene diisocyanate (TDI). We examined three groups of TDI-sensitized subjects, one after no exposure to TDI, the second 8 h after an exposure to TDI that caused an early asthmatic reaction, and the third 8 h after an exposure to TDI that caused a late asthmatic reaction. We analyzed bronchoalveolar lavage (BAL) fluid by reverse-phase high-performance liquid chromatography and by specific radioimmunoassay. The mean concentration of LTB4 was higher [0.31 +/- 0.09 (SE) ng/ml, range 0.15-0.51] in BAL fluid of sensitized subjects who developed a late asthmatic reaction than in BAL fluid of subjects who developed an early asthmatic reaction (0.05 +/- 0.04 ng/ml, range 0-0.224), and no LTB4 was detectable in the control subjects. We also performed BAL 8 h after TDI exposure on four TDI-sensitized late-dual reactors who were on steroid treatment. In this group of subjects no LTB4 was detectable. These results suggest that LTB4 may be involved in late asthmatic reactions induced by TDI.
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Affiliation(s)
- E Zocca
- Interuniversity Center on Mechanisms of Lung Injury, University of Milan, Italy
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28
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Mattoli S, Masiero M, Calabrò F, Mezzetti M, Plebani M, Allegra L. Eicosanoid release from human bronchial epithelial cells upon exposure to toluene diisocyanate in vitro. J Cell Physiol 1990; 142:379-85. [PMID: 2154506 DOI: 10.1002/jcp.1041420222] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Epithelial injury and inflammation are involved in airway hyperresponsiveness and asthma induced by toluene diisocyanate. In that isocyanates are insoluble and highly reactive compounds, bronchial epithelial cells may represent the most important target cells of their toxic effect. We hypothesized that damage to airway epithelium by toluene diisocyanate may result in the release of metabolites of arachidonic acid, which are known to promote inflammation and to alter epithelial cell function and airway smooth muscle responsiveness. To test this hypothesis we examined eicosanoid products in the culture media of bronchial epithelial cells exposed in vitro to 8 and 18 ppb toluene diisocyanate. Epithelial cells derived from human bronchi obtained at surgery were cultured to confluency on collagen-coated microporous membranes. Those cells, which expressed differentiated characteristics of epithelial cells (they showed keratin-containing filaments and had a cobblestone appearance), were alternatively exposed to toluene diisocyanate or air for 30 min in a specially designed in vitro chamber. The production of metabolites of arachidonic acid was assessed by measuring the release of immunoreactive products into the cell medium at the end of the exposure and during a 2 hr period after exposure. This method revealed a predominant isocyanate-induced release of immunoreactive 15-hydroxyeicosatetraenoic acid. Release rate of this compound tended to be dose-related and was associated with cell damage as assessed by the release of lactate dehydrogenase in the medium.
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Affiliation(s)
- S Mattoli
- Interuniversity Center on Cellular and Molecular Mechanisms of Lung Injury, University of Milan, Italy
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29
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Abstract
We measured cyclosporine in whole blood samples from renal and heart transplant patients by high performance liquid chromatography and by two radioimmunoassays with use of specified monoclonal antibodies. In particular, we evaluated the analytical performance of a new specific radioimmunoassay with an iodinated tracer. The reproducibility of the method is satisfactory (within-run CV 7.1 to 9.5% and between-run CV 7.2 to 10.3%). The limit of detection is 10.3 micrograms/L and the analytical recovery between 99 and 114%. The results obtained with samples from both renal heart transplant patients agree well with those obtained by HPLC and by a specific RIA that uses a tritiated tracer.
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Affiliation(s)
- M Plebani
- Department of Clinical Biochemistry, University of Padova, Italy
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30
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Plebani M, Masiero M, Paleari CD, Sciacovelli L, Faggian D, Burlina A. High-performance liquid chromatography for cyclosporin measurement: comparison with radioimmunoassay. J Chromatogr A 1989; 476:93-8. [PMID: 2777999 DOI: 10.1016/s0021-9673(01)93859-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
The large inter-patient variability in cyclosporin pharmacokinetics coupled with the agent's narrow therapeutic index with adverse effects resulting from supratherapeutic levels, necessitates individualization of drug dosage and therapeutic monitoring of cyclosporin blood levels. The performance of a liquid chromatographic method for the measurement of cyclosporin was evaluated and the results obtained by this method and by a specific radioimmunoassay were correlated. The method described is sensitive, selective, reproducible and easier to perform than other chromatographic methods. It is suitable for the daily measurement of cyclosporin in batches of up to 40 samples and the results correlate well with another chromatographic method and with the specific radioimmunoassay.
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Affiliation(s)
- M Plebani
- Cattedra di Chimica e Microscopia Clinica, Universitá di Padova, Italy
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31
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Caenazzo A, Pietrogrande F, Polato G, Piva E, Masiero M, Sgarabotto D, Girolami A. Changes in the mitogenic activity of platelet-derived growth factor(s) in patients with myeloproliferative disease. Acta Haematol 1989; 81:131-5. [PMID: 2496560 DOI: 10.1159/000205544] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Platelet-derived growth factor (PDGF) is thought to take part in the genesis of bone marrow fibrosis that can be found in patients with myeloproliferative diseases. We evaluated platelet mitogenic activity as the difference between serum and plasma activity in 8 patients with myeloproliferative disease. We observed a trend of lower values in 2 cases of polycythemia vera and 2 cases of essential thrombocythemia, as seen by other authors. Two patients suffering from chronic myeloid leukemia were within the normal range. In contrast, our 2 cases of idiopathic myelofibrosis showed increased levels. If confirmed by further studies, this could suggest a pathogenetic relationship between increased levels of PDGF and bone marrow fibrosis, and give differential diagnostic significance to the PDGF mitogenic assay in myeloproliferative diseases.
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Affiliation(s)
- A Caenazzo
- University of Padua Medical School, Institute of Medical Semeiotics, Italy
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32
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Affiliation(s)
- M Plebani
- Dept. of Clin. Chem. and Clin. Microscopy, Univ. of Padova, Italy
| | - M Masiero
- Dept. of Clin. Chem. and Clin. Microscopy, Univ. of Padova, Italy
| | - L Sciacovelli
- Dept. of Clin. Chem. and Clin. Microscopy, Univ. of Padova, Italy
| | - D Faggian
- Dept. of Clin. Chem. and Clin. Microscopy, Univ. of Padova, Italy
| | - A Burlina
- Dept. of Clin. Chem. and Clin. Microscopy, Univ. of Padova, Italy
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33
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Plebani M, Masiero M, Sciacovelli L, Faggian D, Burlina A. A rapid, specific enzyme immunoassay for follitropin and lutropin determination. Clin Chem 1988; 34:772. [PMID: 3129216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- M Plebani
- Dept. of Clin. Chem. and Clin. Microscopy, Univ. of Padova, Italy
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34
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Tozzoli R, Risaliti A, Masiero M, Bruno G. [Evaluation of a new tumor marker (CA 50) in epithelial neoplasms. Preliminary study]. MINERVA CHIR 1987; 42:1785-8. [PMID: 3480454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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35
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Nimis R, Tozzoli R, Masiero M, Fantin O, Gavardi M, Abriola L, Guidi P. [Thyroid function in the euthyroid elderly subject: evidence of low T3 syndrome]. Minerva Med 1987; 78:43-8. [PMID: 3808400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
The presence of a low T3 syndrome was confirmed in elderly euthyroid patients. The condition is characterised by lower circulating total (TT3) and free triiodothyronin (FT3) than in adults with no clinical symptoms of hypothyroidism. A total of 133 subjects over 65 were studied as we used 204 adult controls aged 18-65. Among the indices of thyroid function studied only TT3 and FT3 were founded to be statistically reduced among the elderly.
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36
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Plebani M, Di Mario F, Vianello F, Giordano A, Masiero M, Lazzaretto M, Farini R, Ceriotti G, Naccarato R. Pepsinogen Group I radioimmunoassay and total serum pepsinogen colorimetric determination: a comparative study in normal subjects and in peptic ulcer patients. Clin Biochem 1983; 16:20-2. [PMID: 6861334 DOI: 10.1016/s0009-9120(83)94279-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Pepsinogens, proteolytic enzymes produced by peptic cells of the stomach and discharged into the gastric lumen as well as into the blood have been divided into two groups: PG-I, originating from chief cells, and PG-II, mainly from antrum peptic cells. Both total serum pepsinogen (s-Pg) and PG-I have been separately reported as being significantly increased in gastric (GU) and duodenal ulcer (DU) patients and related to maximal acid output. In order to ascertain the relationship between s-Pg measured by means of the colorimetric Uete method, and PG-I determined by RIA method, these were assayed in 72 control subjects, 35 GU and 95 DU patients. s-Pg was found to be significantly increased both in GU and DU patients in comparison with control subjects. Likewise PG-I was significantly enhanced in GU and DU patients as compared with controls. A significant direct correlation between s-Pg and PG-I was found in all the subjects studied (r = 0.732).
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