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Marzuillo P, Guarino S, Alfiero S, Annicchiarico Petruzzelli L, Arenella M, Baccelli F, Brugnara M, Corrado C, Delcaro G, Di Sessa A, Gallotta G, Lanari M, Lorenzi M, Malgieri G, Miraglia Del Giudice E, Pecoraro C, Pennesi M, Picassi S, Pierantoni L, Puccio G, Scozzola F, Taroni F, Tosolini C, Venditto L, Pasini A, La Scola C, Montini G. Acute kidney injury in children hospitalised for febrile urinary tract infection. Acta Paediatr 2024. [PMID: 38641985 DOI: 10.1111/apa.17247] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/05/2024] [Revised: 04/02/2024] [Accepted: 04/08/2024] [Indexed: 04/21/2024]
Abstract
AIM To determine (i) prevalence and the risk factors for acute kidney injury (AKI) in children hospitalised for febrile urinary tract infection (fUTI) and (ii) role of AKI as indicator of an underlying VUR. AKI, in fact, is favoured by a reduced nephron mass, often associated to VUR. METHODS This retrospective Italian multicentre study enrolled children aged 18 years or younger (median age = 0.5 years) discharged with a primary diagnosis of fUTI. AKI was defined using Kidney Disease/Improving Global Outcomes serum creatinine criteria. RESULTS Of 849 children hospitalised for fUTI (44.2% females, median age 0.5 years; IQR = 1.8), 124 (14.6%) developed AKI. AKI prevalence rose to 30% in the presence of underlying congenital anomalies of the kidney and urinary tract (CAKUT). The strongest AKI predictors were presence of CAKUT (OR = 7.5; 95%CI: 3.8-15.2; p = 9.4e-09) and neutrophils levels (OR = 1.13; 95%CI: 1.08-1.2; p = 6.8e-07). At multiple logistic regression analysis, AKI during fUTI episode was a significant indicator of VUR (OR = 3.4; 95%CI: 1.7-6.9; p = 0.001) despite correction for the diagnostic covariates usually used to assess the risk of VUR after the first fUTI episode. Moreover, AKI showed the best positive likelihood ratio, positive predictive value, negative predictive value and specificity for VUR. CONCLUSION AKI occurs in 14.6% of children hospitalised for fUTI and is a significant indicator of VUR.
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Affiliation(s)
- Pierluigi Marzuillo
- Department of Woman, Child and of General and Specialized Surgery, Università degli Studi della Campania "Luigi Vanvitelli", Naples, Italy
| | - Stefano Guarino
- Department of Woman, Child and of General and Specialized Surgery, Università degli Studi della Campania "Luigi Vanvitelli", Naples, Italy
| | - Salvatore Alfiero
- Department of Woman, Child and of General and Specialized Surgery, Università degli Studi della Campania "Luigi Vanvitelli", Naples, Italy
| | | | - Mattia Arenella
- Department of Woman, Child and of General and Specialized Surgery, Università degli Studi della Campania "Luigi Vanvitelli", Naples, Italy
| | - Francesco Baccelli
- Pediatric Nephrology and Dialysis, Pediatric Unit, IRCCS Azienda Ospedaliero-Universitaria Di Bologna, Bologna, Italy
| | | | - Ciro Corrado
- Pediatric Nephrology, "G. Di Cristina" Hospital, Palermo, Italy
| | - Giulia Delcaro
- Department of Medicine, Surgery and Health Sciences, University of Trieste, Trieste, Italy
| | - Anna Di Sessa
- Department of Woman, Child and of General and Specialized Surgery, Università degli Studi della Campania "Luigi Vanvitelli", Naples, Italy
| | - Giulia Gallotta
- Pediatric Nephrology and Dialysis, Pediatric Unit, IRCCS Azienda Ospedaliero-Universitaria Di Bologna, Bologna, Italy
| | - Marcello Lanari
- Pediatric Emergency Unit, IRCCS Azienda Ospedaliero-Universitaria Di Bologna, Bologna, Italy
| | - Maya Lorenzi
- Department of Surgical Sciences, Dentistry, Gynecology and Pediatrics, Pediatric Clinic, University of Verona, Verona, Italy
| | - Gabriele Malgieri
- Pediatric Nephrology and Dialysis Unit, Santobono Children's Hospital, Naples, Italy
| | - Emanuele Miraglia Del Giudice
- Department of Woman, Child and of General and Specialized Surgery, Università degli Studi della Campania "Luigi Vanvitelli", Naples, Italy
| | - Carmine Pecoraro
- Pediatric Nephrology and Dialysis Unit, Santobono Children's Hospital, Naples, Italy
| | - Marco Pennesi
- Institute for Maternal and Child Health-IRCCS Burlo Garofolo, Trieste, Italy
| | - Sara Picassi
- Pediatria C, Ospedale Donna Bambino, Verona, Italy
| | - Luca Pierantoni
- Pediatric Emergency Unit, IRCCS Azienda Ospedaliero-Universitaria Di Bologna, Bologna, Italy
| | - Giuseppe Puccio
- Department of Woman, Child and of General and Specialized Surgery, Università degli Studi della Campania "Luigi Vanvitelli", Naples, Italy
| | | | - Francesca Taroni
- Pediatric Nephrology, Dialysis and Transplant Unit, Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico Di Milano, Milano, Italy
| | | | - Laura Venditto
- Department of Surgical Sciences, Dentistry, Gynecology and Pediatrics, Pediatric Clinic, University of Verona, Verona, Italy
| | - Andrea Pasini
- Pediatric Nephrology and Dialysis, Pediatric Unit, IRCCS Azienda Ospedaliero-Universitaria Di Bologna, Bologna, Italy
| | - Claudio La Scola
- Pediatric Nephrology and Dialysis, Pediatric Unit, IRCCS Azienda Ospedaliero-Universitaria Di Bologna, Bologna, Italy
| | - Giovanni Montini
- Pediatric Nephrology, Dialysis and Transplant Unit, Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico Di Milano, Milano, Italy
- Giuliana and Bernardo Caprotti Chair of Pediatrics, Department of Clinical Sciences and Community Health, University of Milan, Milano, Italy
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Pasello G, Lorenzi M, Crivellaro G, Capelletto E, Butticè S, Perrone F, Tiseo M, Scotti V, Polo V, Favaretto A, Montrone M, Berardi R, Zustovich F, Toschi L, Bearz A, Milella M, Frega S, Bonanno L, Guarneri V. 21P Bevacizumab plus atezolizumab and chemotherapy in NSCLC harbouring EGFR mutation previously treated with EGFR tyrosine kinase inhibitor: The BACH-NET study. J Thorac Oncol 2023. [DOI: 10.1016/s1556-0864(23)00275-7] [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] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
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3
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Pasello G, Lorenzi M, Tosi A, Roma A, Pavan A, Scapinello A, Lonardi S, Ferro A, Maso AD, Frega S, Bonanno L, Del Bianco P, Guarneri V, Rosato A. 164P Immune cells distribution and spatial relationship within microenvironment as predictive biomarkers of benefit in extended stage small cell lung cancer patients receiving atezolizumab plus carboplatin and etoposide as first-line treatment. J Thorac Oncol 2023. [DOI: 10.1016/s1556-0864(23)00418-5] [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: 04/04/2023]
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4
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Ferro A, Girardi F, Pretelli G, Mulargiu C, Resi M, Benetti B, Marinato G, Lorenzi M, Dal Maso A, Frega S, Pasello G, Guarneri V, Bonanno L. 1584P Immune-related adverse events (irAEs) in advanced non-small cell lung cancer (aNSCLC) in a real-world analysis: A risk prediction nomogram. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.1677] [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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5
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Lorenzi M, Scattolin D, Del Conte A, Sangiorgi S, Polo V, Pavan A, Pilotto S, Santarpia M, Da Ros V, Maso AD, Ferro A, Frega S, Bortolami A, Bonanno L, Indraccolo S, Guarneri V, Pasello G. EP08.02-104 Osimertinib in Untreated EGFR-Mutant Non-small Cell Lung Cancers: Overall Survival and Budget Impact Analysis in Real-World. J Thorac Oncol 2022. [DOI: 10.1016/j.jtho.2022.07.787] [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: 11/25/2022]
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Nunez Garcia M, Finsterbach S, Ly B, Lorenzi M, Cochet H, Sermesant M. Long-term remodelling and arrhythmogenicity after myocardial infarction using a novel image-based estimator: the Scar Maturation Score. Europace 2022. [DOI: 10.1093/europace/euac053.042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: Public grant(s) – EU funding. Main funding source(s): European Research Council
Introduction
Post-infarction scar remodelling may start and evolve at a different pace across patients, often requiring years until the affected tissue becomes arrhythmogenic. Current risk stratification strategies lack sensitivity and specificity, and therefore more knowledge is required (e.g. new biomarkers and insights about the appropriate time point to evaluate them).
Purpose
We introduce a model of scar maturation and a novel estimator of scar remodelling based on fully automated analysis of cardiac computed tomography (CT).
Methods
We retrospectively included patients with history of myocardial infarction and available cardiac CT at the scarring stage (i.e. >6 months post-infarction). A fully automated pipeline was introduced including LV wall segmentation, reformatting to short-axis view, and LV wall thickness (WT) computation. 4 biomarkers representing moderate to severe LV wall thinning were considered (i.e. WT < {5, 4, 3, 2} mm). A statistical approach based on Bayesian Gaussian Process regression was used to model the biomarkers’ evolution. The Scar Maturation Score, a subject-specific parameter encoding the maturation stage relatively to the group-wise model was introduced, and its relationship with sustained ventricular arrhythmia (VA) was analysed.
Results
A total of 428 patients were included (age: 73±8 years, 83% males, LVEF: 46±11%), comprising 58 with 2 CT studies available (median scan delay: 2.1 years). The model estimated a progressive LV wall thinning over the years following the infarction. Patients without VA were typically assigned to low Scar Maturation Scores (i.e. early maturation stage), while VA patients were frequently associated with higher Scores. Scar Maturation Score, LVEF, area of wall thinning, and scar age were all significantly associated with VA (p < 0.0001), the Scar Maturation Score showing the higher correlation ratio.
Conclusion
Fully-automated LV thickness measurements from CT allow for a plausible modelling of scar maturation that, together with the patient-specific Scar Maturation Score, may be useful to improve patient treatment (e.g. determine optimal time point for patient screening) and risk stratification.
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Affiliation(s)
| | - S Finsterbach
- Hôpital Cardiologique du Haut-Lévêque, CHU de Bordeaux, Department of Cardiac Pacing and Electrophysiology, Pessac, France
| | - B Ly
- Inria, Université C’ôte d’Azur, Sophia Antipolis, France
| | - M Lorenzi
- Inria, Université C’ôte d’Azur, Sophia Antipolis, France
| | - H Cochet
- Hôpital Cardiologique du Haut-Lévêque, CHU de Bordeaux, Department of Cardiac Pacing and Electrophysiology, Pessac, France
| | - M Sermesant
- Inria, Université C’ôte d’Azur, Sophia Antipolis, France
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Harrison J, Lorenzi M, Legghe B, Iriart X, Cochet H, Sermesant M. Prediction of thrombosis in atrial fibrillation with compact atrial shape representation. Europace 2022. [DOI: 10.1093/europace/euac053.562] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: Public grant(s) – EU funding. Main funding source(s): IHU LIRYC ANR-10-IAHU-04
ERACoSysMed PARIS Project
Background
The impact of LA shape on clot formation in AF is yet to be understood
Purpose
To analyze the impact of LA, PVs and LAA orientations on clot formation
Methods
Pts with history of AF and an indication for LAA closure underwent pre-operative cardiac CT. Those with either a prior history of embolism or a clot detected on arterial and venous-enhanced CT images were categorized as clot positive. On CT images, the LA was segmented and meshed. Automated labelling of PVs and LAA was employed to build a compact skeleton representation of the LA (by registering labels from a template to all cases, and by connecting the center of mass of each labels). LA skeletons were used to train a novel Neural Network model for joint classification of heterogeneous data, such as images taken at different phases of the cardiac cycle. Such model consists of one encoder per dataset followed by a common classifier, enforcing a joint representation of all datasets in the same latent space. This is made possible by writing the task as a variational problem to optimise, we call this model a multi-channel variational classifier. The model was trained to predict clot positive patients and its generalizability was assessed on a test population.
Results
237 pts were included (age 74±8, 70% males, CHADS-VASc 4.3±1.2). CTs were acquired during systole in 117 and diastole in 120. 100 (42%) patients were considered clot positive. Segmentation, labeling and skeletization was successfully achieved in all pts. The model was trained using a 10-Fold cross validation. We compared the results after training on diastole and systole cases independently and by jointly training on both datasets. At testing, our model reached a 0.72 overall accuracy for the prediction of LAA clots (0.83 for systole and 0.61 for diastole), while training separately on systole and diastole was prone to strong overfitting and mode collapse with 0.52 and 0.48 accuracy, respectively.
Conclusion
While LA shape, LA size, PV and LAA orientations alone may not be sufficient for robust clot prediction, we introduce a compressed representation of the global anatomy that closely relates to LAA thrombosis, possibly identifying global features related to adverse hemodynamics. The method is reproducible and introduces a novel approach to accommodate heterogeneous diastole and systole datasets.
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Pretelli G, Pavan A, Dal Maso A, Resi M, Mulargiu C, Ferro A, Benetti B, Lorenzi M, Marinato G, Frega S, Pasello G, Conte P, Guarneri V, Bonanno L. 63P Immune-related adverse events (irAEs) in advanced non-small cell lung cancer (aNSCLC) patients (pts): Neutrophil to lymphocyte ratio (NLR) and the risk for toxicity recurrence. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.02.072] [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: 11/01/2022] Open
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9
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Pretelli G, Pavan A, Dal Maso A, Resi M, Mulargiu C, Ferro A, Benetti B, Lorenzi M, Marinato G, Frega S, Pasello G, Conte P, Guarneri V, Bonanno L. 40P Immune-related adverse events (irAEs) in advanced non-small cell lung cancer (aNSCLC) patients (pts): A real-world analysis. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.02.049] [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: 11/01/2022] Open
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10
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Pasello G, Lorenzi M, Pretelli G, Pezzuto F, Comacchio G, Buja A, Bonanno L, Guarneri V, Conte P, Rea F, Calabrese F. 1157P Diagnostic therapeutic pathway (DTP) of early stage non-small cell lung cancer (eNSCLC): A real-world focus on EGFR status detection in resected patients (pts). Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.1760] [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: 10/20/2022] Open
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11
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Lorenzi M, Dal Maso A, Ferro A, Polo V, Scattolin D, Macerelli M, Follador A, Targato G, Indraccolo S, Frega S, Menis J, Bonanno L, Guarneri V, Conte P, Pasello G. 149P First-line (1L) osimertinib in EGFR mutant (mut) advanced non-small cell lung cancer (aNSCLC) patients (pts): Progression (PD) pattern and safety in the real-world (RW). J Thorac Oncol 2021. [DOI: 10.1016/s1556-0864(21)01991-2] [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: 11/26/2022]
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12
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Maso AD, Ferro A, Lorenzi M, Polo V, Scattolin D, Del Conte A, Scoccia E, Frega S, Bonanno L, Indraccolo S, Calabrese F, Guarneri V, Conte P, Pasello G. 1398P Real-life progression (PD) pattern of EGFR mutant advanced non-small cell lung cancer (aNSCLC) patients (pts) receiving systemic therapy after first- or second-generation tyrosine kinase inhibitor (1-2 gen TKI). Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.1712] [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: 11/29/2022] Open
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13
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Villar MV, Spreafico A, Moreno V, Braña I, Hernandez T, Razak AA, Wang J, Haddish-Berhane N, Mehta J, Johnson A, Maes A, Haslam J, Mistry P, Kalota A, Lenox L, Infante J, Lorenzi M, Xie H, Lauring J, Patel M. 537MO First-in-human study of JNJ-64619178, a protein arginine methyltransferase 5 (PRMT5) inhibitor, in patients with advanced cancers. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.651] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [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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14
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Mirandola S, Pellini F, Granuzzo E, Lorenzi M, Accordini B, Ulgelmo M, Invento A, Lombardi D, Caldana M, Pollini GP. Multidisciplinary management of CDH1 germinal mutation and prophylactic management hereditary lobular breast cancer: A case report. Int J Surg Case Rep 2019; 58:92-95. [PMID: 31028995 PMCID: PMC6484228 DOI: 10.1016/j.ijscr.2019.03.053] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Revised: 03/04/2019] [Accepted: 03/25/2019] [Indexed: 11/02/2022] Open
Abstract
INTRODUCTION Germline CDH1 mutations, classically associated with hereditary diffuse gastric cancer (HDGC), also imply an increased lifetime risk of developing lobular breast cancer (LBC) in a highly penetrant autosomal dominant manner. PRESENTATION OF CASE We report a 44-year-old woman CDH1 mutation carrier with a strong family history of cancer, who previously had prophylactic total gastrectomy. We registered normal findings at the breast and axilla assessment. Mammography, ultrasonography and breast MRI scans were negative for cancer. In our Institute a bilateral prophylactic mastectomy followed by breast reconstruction was performed. Foci of atypical lobular hyperplasia(ALH) and lobular carcinoma in situ (LCIS) were histologically shown. DISCUSSION The current consensus guidelines for women with pathogenic CDH1 mutations recommend annual mammography, ultrasound, breast MRI scans and clinical breast examination starting at the age of 35. Due to the well-documented aggressive behavior of this particular type of cancer, bilateral mastectomy and reconstruction would be more beneficial for this kind of high-risk patients. CONCLUSION Conflicting evidences and lacking data about the benefits in terms of overall survival, disease-free survival and the long-term outcomes related to prophylactic bilateral mastectomy for CDH1 mutation carriers restrict the instruction for this type of procedure to selected cases, which should always be managed by a multidisciplinary team.
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Affiliation(s)
- Sara Mirandola
- Oncologic Surgery Department, Complex Operative Unit of Breast Surgery - Breast Unit AOUI, Verona, Italy.
| | - Francesca Pellini
- Oncologic Surgery Department, Complex Operative Unit of Breast Surgery - Breast Unit AOUI, Verona, Italy
| | - Eleonora Granuzzo
- Oncologic Surgery Department, Complex Operative Unit of Breast Surgery - Breast Unit AOUI, Verona, Italy
| | - Maya Lorenzi
- Oncologic Surgery Department, Complex Operative Unit of Breast Surgery - Breast Unit AOUI, Verona, Italy
| | - Beatrice Accordini
- Oncologic Surgery Department, Complex Operative Unit of Breast Surgery - Breast Unit AOUI, Verona, Italy
| | - Maurizio Ulgelmo
- Oncologic Surgery Department, Complex Operative Unit of Breast Surgery - Breast Unit AOUI, Verona, Italy
| | - Alessandra Invento
- Oncologic Surgery Department, Complex Operative Unit of Breast Surgery - Breast Unit AOUI, Verona, Italy
| | - Davide Lombardi
- Oncologic Surgery Department, Complex Operative Unit of Breast Surgery - Breast Unit AOUI, Verona, Italy
| | - Marina Caldana
- Oncologic Surgery Department, Complex Operative Unit of Breast Surgery - Breast Unit AOUI, Verona, Italy
| | - Giovanni Paolo Pollini
- Oncologic Surgery Department, Complex Operative Unit of Breast Surgery - Breast Unit AOUI, Verona, Italy
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Park K, Ahn M, Lee S, Kim H, Hong M, Millington D, Curtis M, Triantos S, Chaplan S, Haddish-Berhane N, Knoblauch R, Aguilar Z, Laquerre S, Lorenzi M, Cho B. OA10.06 A First-in-Human Phase 1 Trial of the EGFR-cMET Bispecific Antibody JNJ-61186372 in Patients with Advanced Non-Small Cell Lung Cancer (NSCLC). J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.292] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Banus Cobo J, Camara Rey O, Sermesant M, Lorenzi M. Relationship between brain volumes and cardiac image derived phenotypes. Rev Epidemiol Sante Publique 2018. [DOI: 10.1016/j.respe.2018.03.107] [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: 10/17/2022] Open
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17
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Antelmi L, Lorenzi M, Manera V, Robert P, Ayache N. A method for statistical learning in large databases of heterogeneous imaging, cognitive and behavioral data. Rev Epidemiol Sante Publique 2018. [DOI: 10.1016/j.respe.2018.03.306] [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: 10/17/2022] Open
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Abstract
Plasma levels and urinary excretion of oxypurines – hypoxanthine and xanthine – were evaluated by reverse-phase high-pressure liquid chromatography in 13 patients affected by gastric tumors and in 19 colorectal tumor-bearing patients. Preliminary results indicate higher values of urinary xanthine and an increase in the xanthine/hypoxanthine ratio in cancer patients. The increase was not generalized to all subjects, and did not appear related either to the stage of the disease or to CEA values. The limits within which the determination of urinary oxypurines can be employed as a tumor marker are discussed.
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Lorenzi M, Vindigni C, Minacci C, Tripodi SA, Iroatulam A, Petrioli R, Francini G. Histopathological and Prognostic Evaluation of Immunohistochemical Findings in Colorectal Cancer. Int J Biol Markers 2018; 12:68-74. [PMID: 9342635 DOI: 10.1177/172460089701200205] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [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: 11/16/2022]
Abstract
Many immunohistochemical studies have investigated the relationship between immunohistochemical characteristics and histopathological findings in colorectal tumors. One of the most extensively studied markers has been tissue CEA, although the prognostic significance of this and other antigens is still uncertain. The authors report results relative to three tumoral antigens (carcinoembryonic antigen, CEA; tissue polypeptide antigen, TPA, and carbohydrate antigen 19–9, CA 19–9) determined by immunohistochemical methods in tissue samples of 52 colorectal carcinomas. The relationship between the immunohistochemical characteristics of the neoplasms and the clinicopathologic parameters, as well as their influence on the prognosis of the patients, were examined. Positive CEA reaction has a significant relationship with grade of differentiation of the tumor while diffuse cellular expression of this antigen often indicates neoplasms extending beyond the intestinal wall and invading the lymph vessels. The number of tissue antigens expressed is significantly related to the extent of tumor spread through the intestinal wall. A greater incidence of recurrence and shorter disease-free interval and survival were observed in neoplasms that expressed tissue TPA antigen or more than one tissue antigens. In the present study the latter parameter has demonstrated to have independent prognostic significance for the disease-free interval. Immunohistochemical evaluation of antigens in colorectal carcinoma tissue shows a possible independent prognostic value of the antigenic heterogeneity of tumors, which could be related to their different biological behavior.
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Affiliation(s)
- M Lorenzi
- Institute of General Surgery and Surgical Specialties, University of Siena, Italy
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Abstract
The aim of this study was to investigate the relationship between preoperative serum ferritin levels, clinicopathological parameters and survival analysis of patients with colorectal cancer. Ninety-four patients (57 males) with a mean age of 65 years (39–87 years) underwent 63 curative and 31 palliative operations. Follow-up was at least 5 years. Patients were categorized with normal (30-215 ng/mL in men and 11-148 ng/mL in women), low, or high serum ferritin levels. Prognostic evaluation was undertaken with stratified survival analysis and Cox's regression model. Twenty-nine of the patients (30.9%) had raised ferritin levels and 14 (14.9%) had low values. Comparisons of the survival curves showed significant differences in stage C disease; specifically, patients with either low or high ferritin levels had a shorter survival than patients with normal levels. Patients who underwent palliative surgery and had high ferritin serum values also had a shorter survival. In multivariate analysis, the variables with a negative effect on survival were stage, serum ferritin levels and age. Our data suggest that patients with advanced colorectal cancer having normal preoperative serum ferritin levels may have a better prognosis, although the prognostic value related to this association requires further investigation.
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Affiliation(s)
- M Lorenzi
- Department of General Surgery, University of Siena, Siena, Italy.
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Vernillo R, Lorenzi B, Banducci T, Minacci C, Vindigni C, Fei AL, Lorenzi M. Immunohistochemical Expression of p53 and Ki67 in Colorectal Adenomas and Prediction of Malignancy and Development of New Polyps. Int J Biol Markers 2018; 23:89-95. [DOI: 10.1177/172460080802300205] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The aim of this study was to investigate the immunohistochemical expression of p53 and Ki67 in colorectal adenomas in order to clarify their significance as indicators of malignancy and development of new polyps. Seventy-eight polyps were removed from 51 patients and examined. Twenty-nine patients (56.9%) had adenomas with low-grade atypia (13 of them developed new polyps at 3-year follow-up) and 22 (43.1%) had adenomas with high-grade atypia (6 of them developed new polyps at 3-year follow-up). We tested the association between p53 and Ki67 expression and various clinicopathological variables, and regression analysis was performed to identify the risk factors for malignancy and development of new adenomas. A significant correlation between the grade of atypia and p53 immunoreactivity was observed. Ki67 expression was not related to atypia and no correlation was found between p53 and Ki67 immunoreactivity. Regression analysis showed that size (p=0.0002) and p53 staining (p=0.0111) were the selected factors related to malignant transformation, whereas the number of synchronous primary polyps emerged as the only predictive factor of development of new adenomas, although without statistical significance. The expression of biological markers may be in future added to the currently examined features of polyps; however, further studies are needed to better define their predictive value.
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Affiliation(s)
- R. Vernillo
- Department of Surgery, University of Siena, Siena
| | - B. Lorenzi
- Department of Surgery, University of Siena, Siena
| | - T. Banducci
- Division of Surgery, Amiata Senese Hospital, Abbadia S. S., Siena
| | - C. Minacci
- Division of Pathology, Misericordia Hospital, Grosseto
| | - C. Vindigni
- Department of Human Pathology and Oncology, University of Siena, Siena - Italy
| | | | - M. Lorenzi
- Department of Surgery, University of Siena, Siena
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Brahmer J, Johnson M, Awad M, Rajan A, Allred A, Knoblauch R, Zudaire E, Lorenzi M, Hassan R. P2.07-058 First-In-Human Study of JNJ-64041757, a Live Attenuated Listeria Monocytogenes Immunotherapy, for Non-Small Cell Lung Cancer. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.1314] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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23
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Sabater J, Baker T, Paly V, Gupte-Singh K, Lorenzi M, Jeffers A, Beyhaghi H, Kotapati S, Rao S, Briggs A. Cost-effectiveness of nivolumab+ipilimumab in first-line treatment of advanced melanoma: Analysis using 28-month overall survival from CheckMate 067. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx375.003] [Citation(s) in RCA: 2] [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: 11/13/2022] Open
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24
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Calvani R, Lorenzi M, Picca A, Landi F, Tanganelli F, Bossola M, Bernabei R, Marzetti E. ALTERED MITOCHONDRIAL QUALITY CONTROL IN MUSCLE OF OLD CACHECTIC PATIENTS WITH GASTRIC CANCER. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.1312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- R. Calvani
- Catholic University of the Sacred Heart, Rome, Italy
| | - M. Lorenzi
- Catholic University of the Sacred Heart, Rome, Italy
| | - A. Picca
- Catholic University of the Sacred Heart, Rome, Italy
| | - F. Landi
- Catholic University of the Sacred Heart, Rome, Italy
| | - F. Tanganelli
- Catholic University of the Sacred Heart, Rome, Italy
| | - M. Bossola
- Catholic University of the Sacred Heart, Rome, Italy
| | - R. Bernabei
- Catholic University of the Sacred Heart, Rome, Italy
| | - E. Marzetti
- Catholic University of the Sacred Heart, Rome, Italy
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25
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Goulding R, Lorenzi M, Yuan Y, Bobiak S, Hertel N, Korytowsky B, Penrod J, Jansen J. Systematic literature reviews of second and third-line treatments used for small-cell lung cancer (SCLC). Ann Oncol 2017. [DOI: 10.1093/annonc/mdx088.003] [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: 11/13/2022] Open
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26
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Lorenzi M, Mitroglou N, Santini M, Gavaises M. Novel experimental technique for 3D investigation of high-speed cavitating diesel fuel flows by X-ray micro computed tomography. Rev Sci Instrum 2017; 88:033706. [PMID: 28372445 DOI: 10.1063/1.4978795] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
An experimental technique for the estimation of the temporal-averaged vapour volume fraction within high-speed cavitating flow orifices is presented. The scientific instrument is designed to employ X-ray micro computed tomography (microCT) as a quantitative 3D measuring technique applied to custom designed, large-scale, orifice-type flow channels made from Polyether-ether-ketone (PEEK). The attenuation of the ionising electromagnetic radiation by the fluid under examination depends on its local density; the transmitted radiation through the cavitation volume is compared to the incident radiation, and combination of radiographies from sufficient number of angles leads to the reconstruction of attenuation coefficients versus the spatial position. This results to a 3D volume fraction distribution measurement of the developing multiphase flow. The experimental results obtained are compared against the high speed shadowgraph visualisation images obtained in an optically transparent nozzle with identical injection geometry; comparison between the temporal mean image and the microCT reconstruction shows excellent agreement. At the same time, the real 3D internal channel geometry (possibly eroded) has been measured and compared to the nominal manufacturing CAD drawing of the test nozzle.
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Affiliation(s)
- M Lorenzi
- School of Mathematics Computer Science and Engineering, City University London, London, United Kingdom
| | - N Mitroglou
- School of Mathematics Computer Science and Engineering, City University London, London, United Kingdom
| | - M Santini
- Department of Engineering and Applied Sciences, University of Bergamo, Bergamo, Italy
| | - M Gavaises
- School of Mathematics Computer Science and Engineering, City University London, London, United Kingdom
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27
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Bruun MT, Pendry K, Georgsen J, Manzini P, Lorenzi M, Wikman A, Borg-Aquilina D, van Pampus E, van Kraaij M, Fischer D, Meybohm P, Zacharowski K, Geisen C, Seifried E, Liumbruno GM, Folléa G, Grant-Casey J, Babra P, Murphy MF. Patient Blood Management in Europe: surveys on top indications for red blood cell use and Patient Blood Management organization and activities in seven European university hospitals. Vox Sang 2016; 111:391-398. [DOI: 10.1111/vox.12435] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2016] [Revised: 06/07/2016] [Accepted: 06/28/2016] [Indexed: 01/28/2023]
Affiliation(s)
- M. T. Bruun
- Department of Clinical Immunology; Odense University Hospital; Odense Denmark
| | - K. Pendry
- Department of Transfusion; Central Manchester University Hospitals NHS Foundation Trust; Manchester UK
- NHS Blood & Transplant; Manchester UK
| | - J. Georgsen
- Department of Clinical Immunology; Odense University Hospital; Odense Denmark
| | - P. Manzini
- Banca del Sangue e del Plasma CPVE; Città della Salute e della Scienza di Torino; Torino Italy
| | - M. Lorenzi
- Banca del Sangue e del Plasma CPVE; Città della Salute e della Scienza di Torino; Torino Italy
| | - A. Wikman
- Department of Clinical Immunology and Transfusion Medicine; Karolinska University Hospital; Stockholm Sweden
| | | | - E. van Pampus
- Laboratory of Medical Immunology; Radboud University Medical Centre; Nijmegen The Netherlands
| | - M. van Kraaij
- Department of Transfusion Medicine; Sanquin Blood Bank; Amsterdam The Netherlands
| | - D. Fischer
- Department of Anaesthesiology; Intensive Care Medicine and Pain Therapy; University Hospital Frankfurt; Frankfurt Germany
| | - P. Meybohm
- Department of Anaesthesiology; Intensive Care Medicine and Pain Therapy; University Hospital Frankfurt; Frankfurt Germany
| | - K. Zacharowski
- Department of Anaesthesiology; Intensive Care Medicine and Pain Therapy; University Hospital Frankfurt; Frankfurt Germany
| | - C. Geisen
- German Red Cross Blood Service Baden-Wuerttemberg-Hessen; Institute of Transfusion Medicine and Immunohaematology; Frankfurt Germany
| | - E. Seifried
- German Red Cross Blood Service Baden-Wuerttemberg-Hessen; Institute of Transfusion Medicine and Immunohaematology; Frankfurt Germany
| | - G. M. Liumbruno
- Italian National Blood Centre; National Institute of Health; Rome Italy
| | - G. Folléa
- European Blood Alliance; Amsterdam The Netherlands
| | | | - P. Babra
- NHS Blood & Transplant; Manchester UK
| | - M. F. Murphy
- NHS Blood & Transplant; Manchester UK
- Oxford University Hospitals NHS Foundation Trust; Oxford UK
- University of Oxford; Oxford UK
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Jannasch A, Schnabel C, Santini M, Fest-Santini S, Lorenzi M, Dittfeld C, Plötze K, Koch E, Matschke K, Waldow T. Identification of Fibrotic Thickening as Early Marker of Aortic Valve Stenosis Using X-Ray Micro Computed Tomography and Optical Coherence Tomography. Thorac Cardiovasc Surg 2016. [DOI: 10.1055/s-0036-1571661] [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: 10/22/2022]
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Lorenzi M, Ayache N, Pennec X. Regional flux analysis for discovering and quantifying anatomical changes: An application to the brain morphometry in Alzheimer's disease. Neuroimage 2015; 115:224-34. [PMID: 25963734 PMCID: PMC6343474 DOI: 10.1016/j.neuroimage.2015.04.051] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2014] [Revised: 04/01/2015] [Accepted: 04/25/2015] [Indexed: 11/26/2022] Open
Abstract
In this study we introduce the regional flux analysis, a novel approach to deformation based morphometry based on the Helmholtz decomposition of deformations parameterized by stationary velocity fields. We use the scalar pressure map associated to the irrotational component of the deformation to discover the critical regions of volume change. These regions are used to consistently quantify the associated measure of volume change by the probabilistic integration of the flux of the longitudinal deformations across the boundaries. The presented framework unifies voxel-based and regional approaches, and robustly describes the volume changes at both group-wise and subject-specific level as a spatial process governed by consistently defined regions. Our experiments on the large cohorts of the ADNI dataset show that the regional flux analysis is a powerful and flexible instrument for the study of Alzheimer's disease in a wide range of scenarios: cross-sectional deformation based morphometry, longitudinal discovery and quantification of group-wise volume changes, and statistically powered and robust quantification of hippocampal and ventricular atrophy.
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Affiliation(s)
- M Lorenzi
- Asclepios Research Project, INRIA Sophia Antipolis, 2004 route des Lucioles BP 93, 06 902 Sophia Antipolis, France.
| | - N Ayache
- Asclepios Research Project, INRIA Sophia Antipolis, 2004 route des Lucioles BP 93, 06 902 Sophia Antipolis, France.
| | - X Pennec
- Asclepios Research Project, INRIA Sophia Antipolis, 2004 route des Lucioles BP 93, 06 902 Sophia Antipolis, France.
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Druyts E, Lorenzi M, Toor K, Thorlund K, Mills EJ. Network meta-analysis of direct-acting antivirals in combination with peginterferon-ribavirin for previously untreated patients with hepatitis C genotype 1 infection. QJM 2015; 108:299-306. [PMID: 25239762 DOI: 10.1093/qjmed/hcu202] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [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: 12/17/2022] Open
Abstract
AIM To conduct a network meta-analysis (NMA) to determine the comparative efficacy, as measured by sustained virological response (SVR), between boceprevir (BOC), telaprevir (TEL), faldaprevir (FAL), simeprevir (SIM) and sofosbuvir (SOF) in combination with peginterferon-ribavirin (PR) against a control of PR. DESIGN A literature search was conducted to identify randomized controlled trials (RCTs) including adult patients with hepatitis C virus genotype 1 who were naive to any prior therapy. RCTs assessing standard duration therapy (SDT) or response-guided therapy (RGT) BOC, TEL, FAL, SIM or SOF in combination with PR against a control of PR were eligible for inclusion. All RCTs must have provided SVR at either 12 or 24 weeks post-therapy cessation. RESULTS We included nine RCTs. All direct-acting antivirals (DAAs) were found to perform better than PR. Additionally, SDT FAL was found to be better than the 240 mg RGT FAL regimen with the PR lead-in. A sensitivity analysis excluding RCTs with only SVR at 12 weeks was consistent with the results of the primary analysis. A sensitivity analysis removing an RCT assessing SIM that reported SVR of >60% in the PR control group additionally found that RGT SIM was superior to the 240 mg RGT FAL regimen with the PR lead-in. DISCUSSION Our analyses indicate that SDT and RGT regimens of DAAs plus PR do not differ greatly in terms of SVR among treatment-naive hepatitis C genotype 1 patients. More advanced Bayesian network meta-analyses are likely needed to incorporate a comprehensive evidence base, expanding beyond randomized clinical trials.
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Affiliation(s)
- E Druyts
- From the Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada, Redwood Outcomes, Vancouver, British Columbia, Canada and Stanford Prevention Research Centre, Stanford University, Stanford, California, USA From the Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada, Redwood Outcomes, Vancouver, British Columbia, Canada and Stanford Prevention Research Centre, Stanford University, Stanford, California, USA
| | - M Lorenzi
- From the Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada, Redwood Outcomes, Vancouver, British Columbia, Canada and Stanford Prevention Research Centre, Stanford University, Stanford, California, USA
| | - K Toor
- From the Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada, Redwood Outcomes, Vancouver, British Columbia, Canada and Stanford Prevention Research Centre, Stanford University, Stanford, California, USA
| | - K Thorlund
- From the Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada, Redwood Outcomes, Vancouver, British Columbia, Canada and Stanford Prevention Research Centre, Stanford University, Stanford, California, USA From the Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada, Redwood Outcomes, Vancouver, British Columbia, Canada and Stanford Prevention Research Centre, Stanford University, Stanford, California, USA
| | - E J Mills
- From the Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada, Redwood Outcomes, Vancouver, British Columbia, Canada and Stanford Prevention Research Centre, Stanford University, Stanford, California, USA From the Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada, Redwood Outcomes, Vancouver, British Columbia, Canada and Stanford Prevention Research Centre, Stanford University, Stanford, California, USA
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31
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Santini M, Guilizzoni M, Fest-Santini S, Lorenzi M. A novel technique for investigation of complete and partial anisotropic wetting on structured surface by X-ray microtomography. Rev Sci Instrum 2015; 86:023708. [PMID: 25725853 DOI: 10.1063/1.4908171] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
An experimental study about the anisotropic wetting behavior of a surface patterned with parallel grooves is presented as an application example of a novel technique for investigation of complete and partial anisotropic wetting on structured surface by X-ray microtomography. Shape of glycerin droplets on such surface is investigated by X-ray micro computed tomography (microCT) acting as a non-intrusive, full volume 3D microscope with micrometric spatial resolution. The reconstructed drop volumes enable to estimate the exact volumes of the drops, their base contours, and 3D static contact angles, based on true cross-sections of the drop-surface couple. Droplet base contours are compared to approximate geometrical contour shapes proposed in the literature. Contact angles along slices parallel and perpendicular to the grooves direction are compared with each other. The effect of the sessile drop volume on the wetting behavior is discussed. The proposed technique, which is applicable for any structured surface, enables the direct measure of Wenzel ratio based on the microCT scan in the wetted region usually inapproachable by any others. Comparisons with simplified models are presented and congruence of results with respect to the minimum resolution needed is evaluated and commented.
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Affiliation(s)
- M Santini
- Department of Engineering and Applied Sciences, University of Bergamo, Bergamo, Italy
| | - M Guilizzoni
- Department of Energy, Politecnico di Milano, Milano, Italy
| | - S Fest-Santini
- Department of Engineering, University of Bergamo, Bergamo, Italy
| | - M Lorenzi
- School of Engineering and Mathematical Sciences, City University London, London, United Kingdom
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32
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Lorenzi M, Mudalal S, Cavani C, Petracci M. Incidence of white striping under commercial conditions in medium and heavy broiler chickens in Italy. J APPL POULTRY RES 2014. [DOI: 10.3382/japr.2014-00968] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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33
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Guilizzoni M, Santini M, Lorenzi M, Knisel V, Fest-Santini S. Micro computed tomography and CFD simulation of drop deposition on gas diffusion layers. ACTA ACUST UNITED AC 2014. [DOI: 10.1088/1742-6596/547/1/012028] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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34
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Marzetti E, Lorenzi M, Calvani R, Roberto R, Landi F, Onder G. P117: Shorter telomeres in peripheral blood lymphocytes from older persons with sarcopenia: results from an exploratory study. Eur Geriatr Med 2014. [DOI: 10.1016/s1878-7649(14)70291-8] [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: 11/26/2022]
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35
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Lorenzi M, Ayache N, Frisoni G, Pennec X. LCC-Demons: A robust and accurate symmetric diffeomorphic registration algorithm. Neuroimage 2013; 81:470-483. [DOI: 10.1016/j.neuroimage.2013.04.114] [Citation(s) in RCA: 104] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2012] [Revised: 04/19/2013] [Accepted: 04/27/2013] [Indexed: 11/15/2022] Open
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36
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Mazzanti B, Lorenzi B, Lorenzoni P, Borghini A, Boieri M, Lorenzi M, Santosuosso M, Bosi A, Saccardi R, Weber E, Pessina F. Treatment of experimental esophagogastric myotomy with bone marrow mesenchymal stem cells in a rat model. Neurogastroenterol Motil 2013; 25:e669-79. [PMID: 23859028 DOI: 10.1111/nmo.12182] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [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] [Received: 02/28/2013] [Accepted: 06/16/2013] [Indexed: 12/17/2022]
Abstract
BACKGROUND Over the last 15 years, many studies demonstrated the myogenic regenerative potential of bone marrow mesenchymal stem cells (BM-MSC), making them an attractive tool for the regeneration of damaged tissues. In this study, we have developed an animal model of esophagogastric myotomy (MY) aimed at determining the role of autologous MSC in the regeneration of the lower esophageal sphincter (LES) after surgery. METHODS Syngeneic BM-MSC were locally injected at the site of MY. Histological and functional analysis were performed to evaluate muscle regeneration, contractive capacity, and the presence of green fluorescent protein-positive BM-MSC (BM-MSC-GFP(+) ) in the damaged area at different time points from implantation. KEY RESULTS Treatment with syngeneic BM-MSC improved muscle regeneration and increased contractile function of damaged LES. Transplanted BM-MSC-GFP(+) remained on site up to 30 days post injection. Immunohistochemical analysis demonstrated that MSC maintain their phenotype and no differentiation toward smooth or striated muscle was shown at any time point. CONCLUSIONS & INFERENCES Our data support the use of autologous BM-MSC to both improve sphincter regeneration of LES and to control the gastro-esophageal reflux after MY.
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Affiliation(s)
- B Mazzanti
- Haematology Unit, Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
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Cappai G, Songini M, Doria A, Cavallerano JD, Lorenzi M. Increased prevalence of proliferative retinopathy in patients with type 1 diabetes who are deficient in glucose-6-phosphate dehydrogenase. Diabetologia 2011; 54:1539-42. [PMID: 21380594 DOI: 10.1007/s00125-011-2099-3] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [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] [Received: 11/08/2010] [Accepted: 02/04/2011] [Indexed: 10/18/2022]
Abstract
AIMS/HYPOTHESIS Impaired activity of the pentose phosphate pathway of glucose metabolism caused by hereditary deficiency of its key regulatory enzyme glucose-6-phosphate dehydrogenase (G6PD) has consequences that may worsen or attenuate the course of diabetic complications. Decreased availability of NADPH can predispose to oxidative stress and endothelial dysfunction, but can also limit the activity of the polyol pathway and cholesterol synthesis. Reduced availability of pentose phosphates for nucleic acid synthesis could impair cell proliferation. We sought to learn in which direction G6PD deficiency affects diabetic retinopathy. METHODS We enrolled patients who were G6PD-deficient or -sufficient with type 1 diabetes of duration 15 years or longer for whom HbA(1c) records were available for at least the previous 3 years. Renal failure and smoking were exclusion criteria. For each participant seven standard field colour photographs were obtained of each eye, and retinopathy was graded in a masked fashion. RESULTS The clinical characteristics of the 19 G6PD-deficient patients studied (age 42 ± 9 years, diabetes duration 24 ± 6 years, average HbA(1c) over 3 years 6.7 ± 0.8%) were similar to those of the 35 G6PD-sufficient patients. Almost 90% of patients in both groups had retinopathy; however, proliferative retinopathy was noted solely among G6PD-deficient patients (28%, p = 0.0036 vs G6PD-sufficient). The G6PD-deficient patients also showed a trend for increased frequency of microalbuminuria. CONCLUSIONS/INTERPRETATION The data suggest that G6PD deficiency accelerates the microvascular complications of diabetes, and that among the consequences of G6PD deficiency those that can enhance the damage caused by diabetes outweigh those that could be protective.
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Affiliation(s)
- G Cappai
- Ophthalmology Clinic, Ospedale San Giovanni di Dio, Cagliari, Italy
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38
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Rassekh SR, Lorenzi M, Lee L, Devji S, McBride M, Goddard K. Reclassification of ICD-9 Codes into Meaningful Categories for Oncology Survivorship Research. J Cancer Epidemiol 2010; 2010:569517. [PMID: 21234317 PMCID: PMC3018640 DOI: 10.1155/2010/569517] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [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: 08/04/2010] [Accepted: 11/01/2010] [Indexed: 11/17/2022] Open
Abstract
Background. The International Classification of Disease, ninth revision (ICD-9) is designed to code disease into categories which are placed into administrative databases. These databases have been used for epidemiological studies. However, the categories used in the ICD9-codes are not always the most effective for evaluating specific diseases or their outcomes, such as the outcomes of cancer treatment. Therefore a re-classification of the ICD-9 codes into new categories specific to cancer outcomes is needed. Methods. An expert panel comprised of two physicians created broad categories that would be most useful to researchers investigating outcomes and morbidities associated with the treatment of cancer. A Senior Data Coordinator with expertise in ICD-9 coding, then joined this panel and each code was re-classified into the new categories. Results. Consensus was achieved for the categories to go from the 17 categories in ICD-9 to 39 categories. The ICD-9 Codes were placed into new categories, and subcategories were also created for more specific outcomes. The results of this re-classification is available in tabular form. Conclusions. ICD-9 codes were re-classified by group consensus into categories that are designed for oncology survivorship research. The novel re-classification system can be used by those involved in cancer survivorship research.
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Affiliation(s)
- S. R. Rassekh
- Division of Pediatric Hematology/Oncology/BMT, Department of Pediatrics, British Columbias Childrens Hospital, Room A119, 4480 Oak Street, Vancouver, BC, Canada V6H 3V4
| | - M. Lorenzi
- British Columbia Cancer Agency, Cancer Research Center, 2-107, 675 West 10th Avenue, Vancouver, BC, Canada V5Z 1L3
| | - L. Lee
- British Columbia Cancer Agency, Cancer Research Center, 2-107, 675 West 10th Avenue, Vancouver, BC, Canada V5Z 1L3
| | - S. Devji
- British Columbia Cancer Agency, Cancer Research Center, 2-107, 675 West 10th Avenue, Vancouver, BC, Canada V5Z 1L3
| | - M. McBride
- British Columbia Cancer Agency, Cancer Research Center, 2-107, 675 West 10th Avenue, Vancouver, BC, Canada V5Z 1L3
| | - K. Goddard
- British Columbia Cancer Agency, 600 West 10th Avenue, Vancouver, BC, Canada V5Z 4E6
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Lorenzi M, Donohue M, Paternicò D, Scarpazza C, Ostrowitzki S, Blin O, Irving E, Frisoni GB. Enrichment through biomarkers in clinical trials of Alzheimer's drugs in patients with mild cognitive impairment. Neurobiol Aging 2010; 31:1443-51, 1451.e1. [PMID: 20541287 DOI: 10.1016/j.neurobiolaging.2010.04.036] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2010] [Revised: 04/29/2010] [Accepted: 04/29/2010] [Indexed: 11/25/2022]
Abstract
Clinical trials of disease modifying drugs for Alzheimer's disease (AD) in patients with mild cognitive impairment (MCI) might benefit from enrichment with true AD cases. Four hundred five MCI patients (143 converters and 262 nonconverters to AD within 2 years) of the Alzheimer's disease Neuroimaging Initiative (ADNI) were used. Markers for enrichment were hippocampal atrophy on magnetic resonance (MRI), temporoparietal hypometabolism on FDG PET, cerebrospinal fluid (CSF) biomarkers (Abeta42, tau, and phospho-tau), and cortical amyloid deposition (11C-PIB positron emission tomography (PET)). Two separate enrichment strategies were tested to A) maximize the proportion of MCI converters screened in, and B) minimize the proportion of MCI converters screened out. Based on strategy A, when compared with no enrichment and ADAS-Cog as an outcome measure (sample size of 834), enrichment with 18F-FDG PET and hippocampal volume lowered samples size to 260 and 277 cases per arm, but at the cost of screening out 1,597 and 434 cases per arm. When compared with no enrichment and clinical dementia rating (CDR-SOB) as an outcome measure (sample size of 674), enrichment with hippocampal volume and Abeta42 lowered sample sizes to 191 and 291 cases per arm, with 639 and 157 screened out cases. Strategy B reduced the number of screened out cases (740 for [11C]-PIB PET, 101 hippocampal volume, 82 ADAS-COG and 330 for [18F]-FDG PET) but at the expense of decreased power and a relative increase size (740 for [11C]-PIB PET, 676 for hippocampal volume, 744 for ADAS-Cog, and 517 for [18F]-FDG PET). Enrichment comes at the price of an often relevant proportion of screened out cases, and in clinical trial settings, the balance between enrichment of screened in and loss of screened out patients should be critically discussed.
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Affiliation(s)
- M Lorenzi
- LENITEM Laboratory of Epidemiology, Neuroimaging and Telemedicine, IRCCS San Giovanni di Dio-FBF, Brescia, Italy
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Caroli A, Lorenzi M, Geroldi C, Nobili F, Paghera B, Bonetti M, Cotelli M, Frisoni GB. Metabolic compensation and depression in Alzheimer's disease. Dement Geriatr Cogn Disord 2010; 29:37-45. [PMID: 20110699 DOI: 10.1159/000257761] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 11/02/2009] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND/AIMS The aim of this study was to map metabolic compensation and depression in Alzheimer's disease (AD) on a voxel-by-voxel basis. METHODS Twenty-one healthy elderly subjects and 25 AD patients underwent cerebral MR and FDG-PET imaging. All images were processed with SPM2, and whole-brain gray matter (GM) atrophy and hypometabolism maps were computed. Metabolic compensation and depression were assessed using Biological Parametric Mapping software. RESULTS GM atrophy and hypometabolism mapped to similar regions, with varying degrees of severity. Significant metabolic compensation was found in the amygdala, while exceeding hypometabolism was mainly located in the posterior cingulate cortex. CONCLUSION Metabolic depression can be due to both distant effects of atrophy and to additional hypometabolism-inducing factors, such as amyloid deposition. Conversely, metabolic compensation could reflect spared synaptic plasticity of the surviving neurons. The investigation of the metabolic compensation mechanism could help in the comprehension of the AD underlying pathology.
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Affiliation(s)
- A Caroli
- LENITEM Laboratory of Epidemiology, Neuroimaging and Telemedicine, IRCCS S. Giovanni di Dio-Fatebenefratelli, Brescia, Italy
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Ripa C, De Tommaso G, Lisa R, Lorenzi M, Melatini MC, Mazzanti I, Abbatecola A, Antonicelli R. Pulmonary embolism with minimal D-dimer increase - disagreement between clinic and laboratory: case report. J BIOL REG HOMEOS AG 2010; 24:225-228. [PMID: 20487637] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Pulmonary embolism is still currently considered a very insidious disease and if not diagnosed and treated rapidly is lethal in almost 10 percent of all cases. Clinical and patient history data are essential for the diagnosis and evaluation of the clinical risk of pulmonary embolism. Pulmonary embolism, particularly during minor episodes, was primarily identified by abnormalities in D-dimer concentration during laboratory testing. Indeed, an increase in D-dimer plasma levels was consequently identified as a valid diagnostic element for pulmonary embolism and therefore, in the absence of D-dimer abnormalities, a tendency to exclude such diagnosis exists. This case report describes the importance of carrying out level II diagnostic investigations which may be particularly valid in patients with a minimal rise in D-dimer levels and a clinical suspicion of a pulmonary embolism. This method allows for a quick diagnosis with early therapeutic measures which improve survival rates during the acute and critical phase.
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Aspriello S, Zizzi A, Bambini F, Lorenzi M, Rubini C, Piemontese M. CD117 expression in peri-implantitis soft tissues: An immunohistochemical study. Dent Mater 2010. [DOI: 10.1016/j.dental.2010.08.101] [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: 10/19/2022]
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Abstract
OBJECTIVE To study the relationship between gray matter atrophy and amyloid deposition in Alzheimer disease (AD). METHODS Volumetric magnetic resonance (MR) and [11C]-PIB PET were acquired from 23 patients with AD and 17 healthy older persons. Standardized [11C]-PIB uptake values were coregistered to MR scans in a standard space. Decreased density of and increased [11C]-PIB uptake in the gray matter of patients with AD vs controls were assessed with both voxel-based (p < 0.05 corrected) and region-of-interest (ROI) analyses. The relationship between decreased density of and increased [11C]-PIB uptake in the gray matter was investigated with voxel-based Pearson r maps (thresholded at p < 0.05) and ROI linear regression plots. RESULTS Atrophy mapped to the hippocampus and increased [11C]-PIB uptake to large frontal, parietal, and posterior cingulate cortical areas. ROI analysis showed the largest effect size for atrophy in the hippocampus (2.01) and amygdala (1.27) and the highest effect size for [11C]-PIB uptake in frontal (2.66), posterior cingulate/retrosplenial (2.43), insular (2.41), and temporal (2.23) regions. In the hippocampus, [11C]-PIB uptake was significantly increased, but effect size was milder (1.72). Significant correlations between atrophy and increased [11C]-PIB uptake were found in the hippocampal (r = -0.54) and amygdalar ROIs (r = -0.40) but not in the frontal, temporal, posterior cingulate/retrosplenial, insular, and caudate ROIs (r between 0.04 and 0.25). CONCLUSION The medial temporal lobe might be highly susceptible to amyloid toxicity, whereas neocortical areas might be more resilient.
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Affiliation(s)
- G B Frisoni
- Laboratory of Epidemiology and Neuroimaging, IRCCS San Giovanni di Dio-FBF, via Pilastroni 4, I-25123 Brescia, Italy.
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Rogers PC, Lorenzi M, Broemeling A, Glickman V, Goddard K, Pritchard S, Sheps S, Siegel L, Spinelli J, McBride M. Childhood, adolescent, and young adult cancer survivors (CAYACS) research program of British Columbia: Data linkage: Results to date. J Clin Oncol 2009. [DOI: 10.1200/jco.2009.27.15_suppl.9555] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
9555 Background: Long-term survivors of childhood and adolescent cancers are at risk for late mortality and morbidity. Using database linkages we assessed the extent of these issues and health care utilization in a population based cohort in British Columbia. Methods: Retrospective cohorts of 3,483 survivors (>5 years from diagnosis), and representative comparison groups, have been identified from population-based registries. Linkages were made with administrative databases of risk factors and outcomes. Late mortality, second cancers, late morbidity, health services utilization, continuity of care, and educational outcomes, among those diagnosed before age 20 between 1970 to 1995, and followed to 2000, have been examined. Results: Survivors experienced a 9-fold increase in mortality (SMR 9.1, 95% CI 7.8–10.5). Risk of developing a second cancer was 5 times higher than in the general population (SIR 5.0, 95% CI 3.8–6.5). Survivors had three times the odds of being hospitalized (OR 2.97, 95% CI 2.56–3.45) in a three-year period (1998–2000). Survivors were significantly more likely than the population group to consult any physician (excluding oncologists) (adj. RR 1.61, 95% CI 1.51–1.70). Survivors were found to experience a drop in continuity of primary health care as they aged and transitioned into adult care. Survivors were significantly more likely than their peers to receive special education (32.5% vs. 14.1%), most significantly among CNS survivors who received cranial irradiation. Conclusions: Survivors of childhood and adolescent cancers have severe long term health issues and increased health care utilization. Survivors of CNS tumors were at highest risk of poor health and educational outcomes measured. Data linkage provides useful insights for survivorship research. No significant financial relationships to disclose.
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Affiliation(s)
- P. C. Rogers
- BC Childrens Hospital, Vancouver, BC, Canada; BC Cancer Agency, Vancouver, BC, Canada; Interior Health Authority, Kelowna, BC, Canada; University of British Columbia, Vancouver, BC, Canada
| | - M. Lorenzi
- BC Childrens Hospital, Vancouver, BC, Canada; BC Cancer Agency, Vancouver, BC, Canada; Interior Health Authority, Kelowna, BC, Canada; University of British Columbia, Vancouver, BC, Canada
| | - A. Broemeling
- BC Childrens Hospital, Vancouver, BC, Canada; BC Cancer Agency, Vancouver, BC, Canada; Interior Health Authority, Kelowna, BC, Canada; University of British Columbia, Vancouver, BC, Canada
| | - V. Glickman
- BC Childrens Hospital, Vancouver, BC, Canada; BC Cancer Agency, Vancouver, BC, Canada; Interior Health Authority, Kelowna, BC, Canada; University of British Columbia, Vancouver, BC, Canada
| | - K. Goddard
- BC Childrens Hospital, Vancouver, BC, Canada; BC Cancer Agency, Vancouver, BC, Canada; Interior Health Authority, Kelowna, BC, Canada; University of British Columbia, Vancouver, BC, Canada
| | - S. Pritchard
- BC Childrens Hospital, Vancouver, BC, Canada; BC Cancer Agency, Vancouver, BC, Canada; Interior Health Authority, Kelowna, BC, Canada; University of British Columbia, Vancouver, BC, Canada
| | - S. Sheps
- BC Childrens Hospital, Vancouver, BC, Canada; BC Cancer Agency, Vancouver, BC, Canada; Interior Health Authority, Kelowna, BC, Canada; University of British Columbia, Vancouver, BC, Canada
| | - L. Siegel
- BC Childrens Hospital, Vancouver, BC, Canada; BC Cancer Agency, Vancouver, BC, Canada; Interior Health Authority, Kelowna, BC, Canada; University of British Columbia, Vancouver, BC, Canada
| | - J. Spinelli
- BC Childrens Hospital, Vancouver, BC, Canada; BC Cancer Agency, Vancouver, BC, Canada; Interior Health Authority, Kelowna, BC, Canada; University of British Columbia, Vancouver, BC, Canada
| | - M. McBride
- BC Childrens Hospital, Vancouver, BC, Canada; BC Cancer Agency, Vancouver, BC, Canada; Interior Health Authority, Kelowna, BC, Canada; University of British Columbia, Vancouver, BC, Canada
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Lorenzi M, Feke GT, Cagliero E, Pitler L, Schaumberg DA, Berisha F, Nathan DM, McMeel JW. Retinal haemodynamics in individuals with well-controlled type 1 diabetes. Diabetologia 2008; 51:361-4. [PMID: 18026927 PMCID: PMC2170455 DOI: 10.1007/s00125-007-0872-0] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/09/2007] [Accepted: 10/12/2007] [Indexed: 03/24/2023]
Abstract
AIMS/HYPOTHESIS Abnormalities in retinal haemodynamics have been reported in patients with type 1 diabetes in advance of clinical retinopathy. These abnormalities could therefore be useful as early markers or surrogate endpoints for studying the microangiopathy. Since the DCCT, the increased focus on good glycaemic control is changing the natural history of diabetic retinopathy. Based on this, the aim of this study was to investigate whether patients with type 1 diabetes treated entirely or mostly in the post-DCCT era and tested in the absence of confounding factors show retinal haemodynamic abnormalities. METHODS We measured retinal haemodynamics by laser Doppler flowmetry in 33 type 1 diabetic individuals with no or minimal retinopathy (age 30+/-7 years, duration of diabetes 8.8+/-4.6 years, 9% showing microaneurysms), and 31 age- and sex-matched non-diabetic controls. The study participants were not taking vasoactive medications, and blood glucose at the time of haemodynamic measurements was required to be between 3.8 and 11.1 mmol/l. RESULTS HbA1c was 7.5+/-1.2% and blood glucose 7.7+/-2.8 mmol/l in these type 1 diabetic individuals, indicating relatively good glycaemic control. Retinal blood speed, arterial diameter and blood flow were not different between the diabetic individuals and the matched controls. CONCLUSIONS/INTERPRETATION Type 1 diabetic patients with no or minimal retinopathy who maintain relatively good glycaemic control do not show abnormalities of the retinal circulation at steady state, even after several years of diabetes. In such patients it may be necessary to test the vascular response to challenges to uncover any subtle abnormalities of the retinal vessels.
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Affiliation(s)
- M Lorenzi
- Schepens Eye Research Institute and Department of Ophthalmology, Harvard Medical School, and Diabetes Center and Department of Medicine, Massachusetts General Hospital, Boston, MA, USA.
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Lorenzi M, Vernillo R, Garzi A, Vindigni C, D'Onofrio P, Angeloni GM, Stefanoni M, Picchianti D, Genovese A, Lorenzi B, Iroatulam AJN. Procedure of plicating a demucosated colon to replace an internal anal sphincter. Tech Coloproctol 2004; 8:130-1. [PMID: 15309655 DOI: 10.1007/s10151-004-0073-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Petrioli R, Sabatino M, Fiaschi AI, Marsili S, Pozzessere D, Messinese S, Correale P, Civitelli S, Tanzini G, Tani F, De Martino A, Marzocca G, Lorenzi M, Giorgi G, Francini G. UFT/leucovorin and oxaliplatin alternated with UFT/leucovorin and irinotecan in metastatic colorectal cancer. Br J Cancer 2004; 90:306-9. [PMID: 14735168 PMCID: PMC2409570 DOI: 10.1038/sj.bjc.6601521] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
A total of 41 metastatic colorectal cancer (CRC) patients received tegafur/uracil (UFT)+leucovorin (LV)+oxaliplatin alternated with UFT/LV+irinotecan. The overall response rate was 58.5% (95% confidence interval, 42.2-73.3%), and the median progression-free survival was 8.8 months. There were no grade 4 toxicities; 12 patients (29%) experienced grade 3 diarrhoea. There were no cases of hand-foot syndrome. This alternating regimen seems to be effective and well tolerated in the first-line treatment of patients with metastatic CRC.
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Affiliation(s)
- R Petrioli
- Department of Human Pathology and Oncology, Medical Oncology Section, University of Siena, Viale Bracci 11, Siena 53100, Italy
| | - M Sabatino
- Department of Human Pathology and Oncology, Medical Oncology Section, University of Siena, Viale Bracci 11, Siena 53100, Italy
| | - A I Fiaschi
- Department of Pharmacology, University of Siena, Siena, Italy
| | - S Marsili
- Department of Human Pathology and Oncology, Medical Oncology Section, University of Siena, Viale Bracci 11, Siena 53100, Italy
| | - D Pozzessere
- Department of Human Pathology and Oncology, Medical Oncology Section, University of Siena, Viale Bracci 11, Siena 53100, Italy
| | - S Messinese
- Department of Human Pathology and Oncology, Medical Oncology Section, University of Siena, Viale Bracci 11, Siena 53100, Italy
| | - P Correale
- Department of Human Pathology and Oncology, Medical Oncology Section, University of Siena, Viale Bracci 11, Siena 53100, Italy
| | - S Civitelli
- Clinical Surgery; University of Siena, Siena, Italy
| | - G Tanzini
- Clinical Surgery; University of Siena, Siena, Italy
| | - F Tani
- General Surgery; University of Siena, Siena, Italy
| | - A De Martino
- General Surgery; University of Siena, Siena, Italy
| | - G Marzocca
- General Surgery; University of Siena, Siena, Italy
| | - M Lorenzi
- General Surgery; University of Siena, Siena, Italy
| | - G Giorgi
- Department of Pharmacology, University of Siena, Siena, Italy
| | - G Francini
- Department of Human Pathology and Oncology, Medical Oncology Section, University of Siena, Viale Bracci 11, Siena 53100, Italy
- Department of Human Pathology and Oncology, Medical Oncology Section, University of Siena, Viale Bracci 11, Siena 53100, Italy. E-mail:
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Orsomando G, Lorenzi M, Ferrari E, de Chiara C, Spisni A, Ruggieri S. PcF protein from Phytophthora cactorum and its recombinant homologue elicit phenylalanine ammonia lyase activation in tomato. Cell Mol Life Sci 2003; 60:1470-6. [PMID: 12943233 DOI: 10.1007/s00018-003-3079-7] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.8] [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: 10/26/2022]
Abstract
The phytotoxic protein PcF (Phytophthora cactorum-Fragaria) is a 5.6-kDa cysteine-rich, hydroxyproline-containing protein that is secreted in limited amounts by P. cactorum, an oomycete pathogen of tomato, strawberry and other relevant crop plants. Although we have shown that pure PcF triggers plant reactivity, its mechanism of action is not yet understood. Here we show that PcF, like other known fungal protein elicitors involved in pathogen-plant interaction, stimulates the activity of the defense enzyme phenylalanine ammonia lyase (EC 4.3.1.5) in tomato seedlings. Recognizing that a key step in understanding the mechanism of action of PcF at a molecular level is knowledge of its three-dimensional structure, we overexpressed this protein extracellularly in Pichia pastoris. The preliminary structural and functional characterization of a recombinant PcF homologue, N4-rPcF, is reported. Interestingly, although N4-rPcF is devoid of proline hydroxylation and has four additional amino acid residues attached to its N terminus, its secondary structure and biological activity are indistinguishable from wild-type PcF.
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Affiliation(s)
- G Orsomando
- Istituto di Biotecnologie Biochimiche, Università di Ancona, Via Brecce Bianche, 60131 Ancona, Italy
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Lorenzi M, Vernillo R, Garzi A, Vindigni C, D'Onofrio P, Angeloni GM, Stefanoni M, Picchianti D, Genovese A, Lorenzi B, Iroatulam AJN. Experimental internal anal sphincter replacement with demucosated colonic plication. Tech Coloproctol 2003; 7:9-16. [PMID: 12750949 DOI: 10.1007/s101510300002] [Citation(s) in RCA: 6] [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: 10/26/2022]
Abstract
BACKGROUND Selective re-creation of a new internal anal sphincter could be indicated when the natural one is irreversibly damaged or excised. METHODS In this preliminary experimental work, surgical techniques of internal anal sphincter replacement in pigs were investigated. After preoperative anorectal manometry, surgical procedure was done in two phases: abdominal, mobilization of the colon-rectum to the pelvic floor; and perianal, dissection of the anal canal from the external anal sphincter through the intersphincteric space. The fully mobilized anorectal segment, including the internal anal sphincter, was pulled down through the anus and resected. The distal colonic stump was then demucosated and two types of plications of the demucosated segment were accomplished, each type in three animals. The plicated segment was then returned into the anal canal, inside the external sphincter. Short-term follow-up with clinical and manometric evaluations was performed and, subsequently, histological analysis of the plicated segment, after the animals were sacrificed. RESULTS None of the animals became incontinent. Anal manometry identified a high-pressure zone and relaxation reflex in the new anal canal. Histologic studies showed hypertrophy of smooth muscle layers without degenerative changes. CONCLUSION This study indicates that a plication of colonic smooth muscle wall can re-create a high-pressure zone in the anal canal after the internal anal sphincter has been excised.
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Affiliation(s)
- M Lorenzi
- Institute of General Surgery and Surgical Specialties, University of Siena, Nuovo Policlinico, Viale Bracci, I-53100 Siena, Italy.
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Testi W, Vernillo R, Spagnulo M, Genovese A, Picchianti D, Stefanoni M, Terreni C, Lorenzi M, De Martino A, Mancini S. [Endoscopic treatment of intestinal anastomotic leakage in low anterior resection of the rectum by using fibrin adhesive. Our experience]. MINERVA CHIR 2002; 57:683-8. [PMID: 12370671] [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: 02/26/2023]
Abstract
BACKGROUND Personal experience about treatment of anastomotic leakage in low anterior resection of the rectum by using human fibrin adhesive "Tissucol" is reported. METHODS Eight cases of anastomotic leakage treated with using human fibrin adhesive "Tissucol", are analyzed in a retrospective study. Patients had three/six months-one year follow up. Treatment with human fibrin adhesive "Tissucol" was performed in our Endoscopic ambulatory. Six cases had either an immediate resolution or an ambulatorial follow-up; in 2 cases only, general complications forced to a prolonged hospital stay. The study concerns 58 patients subjected to low anterior resection of the rectum and endoscopic treatment of 8/58 patients with anastomotic leakage. Fistulas were sealed with human fibrin adhesive "Tissucol" by using flexible endoscope. Anastomotic leakage identification leakage was made and low anterior resection of the rectum and sealing with human fibrin adhesive "Tissucol" were performed. RESULTS Complete sealing of fistula and rectum patent. CONCLUSIONS The excellent results obtained with this non invasive and fast treatment, easily practicable even in ambulatorial regimen, lead the authors to consider it effective and as first-choice treatment of this dangerous complication. The cost/benefit ratio is favorable if compared with the long hospital stay required for other treatments, which also present loaded high morbidity and mortality.
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Affiliation(s)
- W Testi
- Istituto di Chirurgia Generale e Specialità Chirurgiche, Università degli Studi di Siena, Siena, Italy
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