1
|
Dello Strologo L, Spada M, Vici CD, Atti MCD, Rheault M, Bjerre AK, Boyer O, Calvo PL, D'Antiga L, Harshman LA, Hörster F, Kölker S, Jahnukainen T, Knops N, Krug P, Krupka K, Lee A, Levtchenko E, Marks SD, Stojanovic J, Martelli L, Mazariegos G, Montini G, Shenoy M, Sidhu S, Spada M, Tangeras T, Testa S, Vijay S, Wac K, Wennberg L, Concepcion W, Garbade SF, Tönshoff B. Renal outcome and plasma methylmalonic acid levels after isolated or combined liver or kidney transplantation in patients with methylmalonic acidemia: A multicenter analysis. Mol Genet Metab 2022; 137:265-272. [PMID: 36240580 DOI: 10.1016/j.ymgme.2022.09.010] [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] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 09/28/2022] [Accepted: 09/28/2022] [Indexed: 11/30/2022]
Abstract
BACKGROUND Methylmalonic acidemia (MMAemia) is characterized by accumulation of methylmalonic acid (MMA) in all body tissues. To minimize disease-related complications, isolated kidney (KTx), liver (LTx) or combined liver-kidney transplantation (LKTx) have been suggested. However, the impact of these different transplant strategies on outcome are unclear. METHODS In this multicenter retrospective observational study, we compared plasma MMA levels and estimated glomerular filtration rate (eGFR) data of 83 patients. Sixty-eight patients (82%) had a mut0-type MMAemia, one patient had a mut--type MMAemia, and seven (7.3%) had an inherited defect in cobalamin metabolism (cblA- or cblB-type MMAemia). Median observation period was 3.7 years (0-15.1 years). RESULTS Twenty-six (31%) patients underwent KTx, 24 (29%) LTx and 33 (40%) LKTx. Posttransplant, mean plasma MMA concentration significantly decreased in all three cohorts; but at month 12, plasma MMA in KTx (1372 ± 1101 μmol/L) was 7.8-fold higher than in LTx (176 ± 103 μmol/L; P < 0.001) and 6.4-fold higher than in LKTx (215 ± 110 μmol/L; P < 0.001). Comparable data were observed at month 24. At time of transplantation, mean eGFR in KTx was 18.1 ± 24.3 mL/min/1.73 m2, in LTx 99.8 ± 29.9 mL/min/1.73 m2, and in LKTx 31.5 ± 21.2 mL/min/1.73 m2. At month 12 posttransplant, mean eGFR in KTx (62.3 ± 30.3 mL/min/1.73 m2) was 33.4% lower than in LTx (93.5 ± 18.3 mL/min/1.73 m2; P = 0.0053) and 25.4% lower than in LKTx (83.5 ± 26.9 mL/min/1.73 m2; P = 0.0403). CONCLUSIONS In patients with isolated MMAemia, LTx and LKTx lead to markedly lower plasma MMA levels during the first 2 years posttransplant than KTx and are associated with a better preservation of kidney function. LTx should therefore be part of the transplant strategy in MMAemia.
Collapse
Affiliation(s)
| | - Marco Spada
- Surgery, Bambino Gesù Children's Hospital IRCCS, Rome, Italy
| | | | | | | | - Anna Kristina Bjerre
- Department of Paediatric and Adolescent Medicine, Oslo University Hospital, Norway; Institute of Clinical Medicine, University of Oslo, Norway
| | - Olivia Boyer
- Hopital Necker - Enfant Malades, MARHEA, Institut Imagine, Université Paris Cité, Paris, France
| | | | - Lorenzo D'Antiga
- Paediatric Hepatology, Gastroenterology and Transplantation Hospital Papa Giovanni XXIII, Bergamo, Italy
| | | | - Friederike Hörster
- Department of Pediatrics I, University Children's Hospital, Heidelberg, Germany
| | - Stefan Kölker
- Department of Pediatrics I, University Children's Hospital, Heidelberg, Germany
| | - Timo Jahnukainen
- Department of Pediatric Nephrology and Transplantation, New Children's Hospital Helsinki, Finland
| | - Noël Knops
- Department of Pediatric Nephrology & Growth and Regeneration, University Hospitals Leuven & University of Leuven, Belgium
| | - Pauline Krug
- Hopital Necker - Enfant Malades, MARHEA, Institut Imagine, Université Paris Cité, Paris, France
| | - Kai Krupka
- Department of Pediatrics I, University Children's Hospital, Heidelberg, Germany
| | - Angela Lee
- Division of Transplantation, Stanford University School of Medicine, USA
| | - Elena Levtchenko
- Department of Pediatric Nephrology & Growth and Regeneration, University Hospitals Leuven & University of Leuven, Belgium
| | - Stephen D Marks
- NIHR Great Ormond Street Hospital Biomedical Research Centre, University College London Great Ormond Street Institute of Child Health, London, UK
| | - Jelena Stojanovic
- NIHR Great Ormond Street Hospital Biomedical Research Centre, University College London Great Ormond Street Institute of Child Health, London, UK
| | - Laura Martelli
- Paediatric Hepatology, Gastroenterology and Transplantation Hospital Papa Giovanni XXIII, Bergamo, Italy
| | - George Mazariegos
- Pediatric Transplant Surgery, UPMC Children's Hospital of Pittsburgh, USA
| | - Giovanni Montini
- Pediatric Nephrology, Dialysis and Transplantation Unit, Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico Milan, Italy
| | - Mohan Shenoy
- Pediatric Nephrology, Royal Manchester Children's Hospital, UK
| | - Sangeet Sidhu
- Pediatric Nephrology, Royal Manchester Children's Hospital, UK
| | - Marco Spada
- Department of Pediatrics, University of Torino, Turin, Italy
| | - Trine Tangeras
- Department of Paediatric and Adolescent Medicine, Oslo University Hospital, Norway
| | - Sara Testa
- Pediatric Nephrology, Dialysis and Transplantation Unit, Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico Milan, Italy
| | - Suresh Vijay
- Pediatrics, Birmingham Children's Hospital NHS Foundation Trust, UK
| | - Katarzyna Wac
- Division of Transplantation, Stanford University School of Medicine, USA
| | - Lars Wennberg
- Department of Transplantation Surgery, Karolinska University Hospital Stockholm, Sweden
| | - Waldo Concepcion
- Division of Transplantation, Stanford University School of Medicine, USA
| | - Sven F Garbade
- Department of Pediatrics I, University Children's Hospital, Heidelberg, Germany
| | - Burkhard Tönshoff
- Department of Pediatrics I, University Children's Hospital, Heidelberg, Germany.
| |
Collapse
|
2
|
Cesca L, Conversano E, Vianello FA, Martelli L, Gualeni C, Bassani F, Brugnara M, Rubin G, Parolin M, Anselmi M, Marchiori M, Vergine G, Miorin E, Vidal E, Milocco C, Orsi C, Puccio G, Peruzzi L, Montini G, Dall'Amico R. How Covid-19 changed the epidemiology of febrile urinary tract infections in children in the emergency department during the first outbreak. BMC Pediatr 2022; 22:550. [PMID: 36109739 PMCID: PMC9476415 DOI: 10.1186/s12887-022-03516-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Accepted: 07/23/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The first Covid-19 pandemic affected the epidemiology of several diseases. A general reduction in the emergency department (ED) accesses was observed during this period, both in adult and pediatric contexts. METHODS This retrospective study was conducted on the behalf of the Italian Society of Pediatric Nephrology (SINePe) in 17 Italian pediatric EDs in March and April 2020, comparing them with data from the same periods in 2018 and 2019. The total number of pediatric (age 0-18 years) ED visits, the number of febrile urinary tract infection (UTI) diagnoses, and clinical and laboratory parameters were retrospectively collected. RESULTS The total number of febrile UTI diagnoses was 339 (73 in 2020, 140 in 2019, and 126 in 2018). During the first Covid-19 pandemic, the total number of ED visits decreased by 75.1%, the total number of febrile UTI diagnoses by 45.1%, with an increase in the UTI diagnosis rate (+ 121.7%). The data collected revealed an increased rate of patients with two or more days of fever before admission (p = 0.02), a significant increase in hospitalization rate (+ 17.5%, p = 0.008) and also in values of C reactive protein (CRP) (p = 0.006). In 2020, intravenous antibiotics use was significantly higher than in 2018 and 2019 (+ 15%, p = 0.025). Urine cultures showed higher Pseudomonas aeruginosa and Enterococcus faecalis percentages and lower rates of Escherichia coli (p = 0.02). CONCLUSIONS The first wave of the Covid-19 pandemic had an essential impact on managing febrile UTIs in the ED, causing an absolute reduction of cases referring to the ED but with higher clinical severity. Children with febrile UTI were more severely ill than the previous two years, probably due to delayed access caused by the fear of potential hospital-acquired Sars-Cov-2 infection. The possible increase in consequent kidney scarring in this population should be considered.
Collapse
Affiliation(s)
- Laura Cesca
- Pediatria - Ospedale Civile S. Maria Degli Angeli Di Pordenone, Pordenone, Italy
| | - Ester Conversano
- Pediatric Department, Institute for Maternal and Child Health - IRCCS "Burlo Garofolo", Trieste, Italy.
| | - Federica Alessandra Vianello
- Pediatric Nephrology, Dialysis and Transplant Unit, Fondazione Ca' Granda IRCCS, Policlinico Di Milano, Milano, Italy
| | - Laura Martelli
- Dipartimento Di Pediatria, Ospedale Papa Giovanni XXIII, Bergamo, Italy
| | - Chiara Gualeni
- Clinica Pediatrica Degli Spedali Civili Di Brescia, Brescia, Italy
| | - Francesca Bassani
- Unita' Operativa Complessa Di Pediatria, Ospedale Regionale Di Bolzano, Bolzano, Italy
| | - Milena Brugnara
- Pediatria, Ospedale Universitario Della Donna E del Bambino Di Verona, Verona, Italy
| | - Giulia Rubin
- Unità Operativa Complessa Di Pediatria, Dipartimento Strutturale Materno-Infantile, Ospedale San Bortolo, Vicenza, Italy
| | - Mattia Parolin
- Pediatric Nephrology, Dialysis and Transplant Unit, Department of Women's and Children's Health, University-Hospital, Padua, Italy
| | - Mauro Anselmi
- Unità Operativa Complessa Di Pediatria Dolo-Mirano, Dolo, Italy
| | - Mara Marchiori
- Unità Operativa Complessa Di Pediatria E Patologia Neonatale, Ospedale Dell'Angelo Di Mestre, Mestre, Italy
| | - Gianluca Vergine
- Department of Pediatrics, Rimini Infermi Hospital, Rimini, Italy
| | - Elisabetta Miorin
- Struttura Complessa Di Pediatria, Ospedale Civile Di Latisana-Palmanova, Latisana, Italy
| | - Enrico Vidal
- Division of Pediatrics, Department of Medicine (DAME), University-Hospital of Udine, Udine, Italy
| | - Cristina Milocco
- Divisione Di Struttura Operativa Complessa Di Pediatria, Ospedale San Polo, Monfalcone, Italy
| | - Cecilia Orsi
- Nefrologia Pediatrica - Ospedale Regina Margherita - Città Della Salute E Della Scienza Di Torino, Torino, Italy
| | - Giuseppe Puccio
- Pediatric Nephrology, Dialysis and Transplant Unit, Fondazione Ca' Granda IRCCS, Policlinico Di Milano, Milano, Italy
| | - Licia Peruzzi
- Nefrologia Pediatrica - Ospedale Regina Margherita - Città Della Salute E Della Scienza Di Torino, Torino, Italy
| | - Giovanni Montini
- Pediatric Nephrology, Dialysis and Transplant Unit, Fondazione Ca' Granda IRCCS, Policlinico Di Milano, Milano, Italy
- Giuliana and Bernardo Caprotti Chair of Pediatrics, Department of Clinical Sciences and Community Health, University of Milano, Milano, Italy
| | - Roberto Dall'Amico
- Pediatria - Ospedale Civile S. Maria Degli Angeli Di Pordenone, Pordenone, Italy
| |
Collapse
|
3
|
Ardissino G, Vergori A, Vergori C, Martelli L, Daccò V, Villa MC, Masciani M, Monzani A, Salice P, Ghiglia S, Perrone M, Capone V, Mancuso MC, Giussani A, Pieri GR, Bosco A, Brambilla M, Romano R, Rotondo S, Buzzetti R. Multiple, random spot urine sampling for estimating urinary sodium excretion. Eur J Pediatr 2022; 181:83-90. [PMID: 34196792 DOI: 10.1007/s00431-021-04170-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Revised: 06/06/2021] [Accepted: 06/16/2021] [Indexed: 11/26/2022]
Abstract
The measurement of sodium intake may be important for the management of hypertension. Dietary surveys and 24-h urinary collection are often unreliable and/or impractical. We hypothesized that urinary sodium excretion can be accurately estimated through multiple spot urine samples from different days. All enrolled subjects were children of the coauthors of the study. Fifty-two 24-h urinary collections (4 per subject) for measuring sodium excretion and the 297 related urinary samples (1 per voiding) were collected for calculating the urinary sodium/urinary creatinine ratio in 13 children. The mean of 4 measured sodium excretions served as the individual "gold standard". Twenty-four urinary collections were used to generate the equation predicting the mean measured sodium excretion from the mean of 4 urinary sodium/urinary creatinine [= 0.016 × urinary sodium (mmol/L) / urinary creatinine (mmol/L) ratio + 3.3)]; the remaining 28 urinary collections and 153 urinary samples were used for the external validation. All subjects underwent an additional validation procedure involving 12 urinary samples randomly collected on different days 6 months apart. The performance of sodium excretion calculated from a total of over 22,000 possible means of 4 out of all the available urinary samples, randomly taken on different days, was analyzed as to precision (by means of the coefficient of variation) and as to accuracy (by means of the P30). The coefficients of variations of measured vs. calculated sodium excretion were 25.3% vs. 25.8%, and the P30 of calculated sodium excretion was 100%. The excellent performance of calculated sodium excretion was confirmed both by external validation and by samples collected 6 months apart with mean P30s, all between 86 and 100%.Conclusion: In the described experimental conditions, urinary sodium excretion was estimated with equal precision and more accurately (and practically) by the mean of 4 urinary sodium/urinary creatinine ratios from random samples from different days than by a single urinary collection. In real life, with several errors systematically affecting urinary collection, the superiority of calculated sodium excretion is likely to be even greater. What is Known: • The measurement of sodium intake with the current standards of care (dietary survey or 24-h urinary collection) is laborious and can be inaccurate. What is New: • The study provides evidence that sodium intake can be estimated equally precisely, more accurately and more practically with the urinary sodium-to-urinary creatinine ratio from 4 urine samples taken on different days than with a single urinary collection.
Collapse
Affiliation(s)
- Gianluigi Ardissino
- Pediatric Nephrology, Dialysis and Transplantation, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | | | | | - Laura Martelli
- Paediatric Department, Hospital Papa Giovanni XXIII, Bergamo, Italy
| | - Valeria Daccò
- Neonatology Unit, Ospedale San Giuseppe, Milan, Italy
| | - Maria Cristina Villa
- Pediatric Department, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Martino Masciani
- Pediatric and Pediatric Intensive Care Unit, Ospedale Bufalini, Cesena, Italy
| | - Alice Monzani
- Health Science Department, Pediatric Department, Università del Piemonte Orientale, AOU Maggiore della Carità, Novara, Italy
| | - Patrizia Salice
- Pediatric Department, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Silvia Ghiglia
- Pediatric Cardiology Unit, Vittore Buzzi Children's Hospital, ASST FBF-Sacco, Milan, Italy
| | - Michela Perrone
- NICU, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Valentina Capone
- Pediatric Nephrology, Dialysis and Transplantation, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Maria Cristina Mancuso
- Pediatric Nephrology, Dialysis and Transplantation, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Antenore Giussani
- Kidney Transplant Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Giovanni Raimondo Pieri
- Pediatric and Pediatric Emergency Unit, AO SS Antonio e Biagio e C. Arrigo, Alessandria, Italy
| | - Annalisa Bosco
- Pediatric Department, Ospedale F. del Ponte, University of Insubria, Varese, Italy
| | - Marta Brambilla
- Pediatric Nephrology, Dialysis and Transplantation, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Roberto Romano
- Pediatric Department, University of Milano, Milan, Italy
| | - Stefania Rotondo
- Pediatric Nephrology, Dialysis and Transplantation, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | | |
Collapse
|
4
|
Morello W, Mastrangelo A, Guzzo I, Cusinato L, Petruzzelli L, Benvenuta C, Martelli L, Dall'Amico R, Vianello FA, Puccio G, Massella L, Benetti E, Pecoraro C, Peruzzi L, Montini G. Prevalence of SARS-CoV-2-IgG Antibodies in Children with CKD or Immunosuppression. Clin J Am Soc Nephrol 2021; 16:1097-1099. [PMID: 34099499 PMCID: PMC8425622 DOI: 10.2215/cjn.00330121] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2021] [Revised: 04/15/2021] [Accepted: 04/19/2021] [Indexed: 11/23/2022]
Affiliation(s)
- William Morello
- W Morello, Pediatric Nephrology, Dialysis and Transplant Unit, Fondazione IRCCS Cà Granda, Ospedale Maggiore Policlinico, Milano, Italy
| | - Antonio Mastrangelo
- A Mastrangelo, Pediatric Nephrology, Dialysis and Transplant Unit, Fondazione IRCCS Cà Granda, Ospedale Maggiore Policlinico, Milano, Italy
| | - Isabella Guzzo
- I Guzzo, Nephrology and Dialysis Unit, Pediatric Subspecialties Department, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - Lisa Cusinato
- L Cusinato, Pediatric Nephrology, Dialysis and Transplant Unit, Department of Women's and Children's Health, University Hospital of Padua, Padua, Italy
| | - Luigi Petruzzelli
- L Petruzzelli, Pediatric Nephrology and Dialysis Unit, Santobono Children's Hospital, Naples, Italy
| | - Chiara Benvenuta
- C Benvenuta, Pediatric Nephrology Unit, Regina Margherita Children's Hospital, AOU Città della Salute e della Scienza di Torino, Turin, Italy
| | - Laura Martelli
- L Martelli, Paediatric Unit, Papa Giovanni XXIII Hospital, Bergamo, Italy
| | - Roberto Dall'Amico
- R Dall'Amico, Department of Pediatrics, Azienda per l'Assistenza Sanitaria n 5 Friuli Occidentale, Pordenone, Italy
| | - Federica Alessandra Vianello
- F Vianello, Pediatric Nephrology, Dialysis and Transplant Unit, Fondazione IRCCS Cà Granda, Ospedale Maggiore Policlinico, Milan, Italy
| | - Giuseppe Puccio
- G Puccio, Department of Sciences for Health Promotion, University of Palermo, Palermo, Italy
| | - Laura Massella
- L Massella, Nephrology and Dialysis Unit, Pediatric Subspecialties Department, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - Elisa Benetti
- E Benetti, Pediatric Nephrology, Dialysis and Transplant Unit, Department of Women's and Children's Health, University Hospital of Padua, Padua, Italy
| | - Carmine Pecoraro
- C Pecoraro, Pediatric Nephrology and Dialysis Unit, Santobono Children's Hospital, Naples, Italy
| | - Licia Peruzzi
- L Peruzzi, Pediatric Nephrology Unit, Regina Margherita Children's Hospital, AOU Città della Salute e della Scienza di Torino, Turin, Italy
| | - Giovanni Montini
- G Montini, Pediatric Nephrology, Dialysis and Transplant Unit, Fondazione IRCCS Cà Granda, Ospedale Maggiore Policlinico, Milano, Italy
| |
Collapse
|
5
|
Mazza A, Di Giorgio A, Martelli L, Pelliccia C, Pinotti MA, Quadri V, Verdoni L, Decio A, Ruggeri M, D'Antiga L. Patterns of Presentation of SARS-CoV-2 Infection in Children. Experience at the Italian Epicentre of the Pandemic. Front Pediatr 2021; 9:629040. [PMID: 33585374 PMCID: PMC7877486 DOI: 10.3389/fped.2021.629040] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [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: 11/13/2020] [Accepted: 01/07/2021] [Indexed: 01/06/2023] Open
Abstract
Background: COVID-19, a disease caused by the new coronavirus SARS-CoV-2, spread worldwide, and Bergamo was one of the most affected areas in Europe. Following the first outbreak, more than half of the population of the Bergamo province had been infected. We aimed to describe the patients admitted to our unit shortly after the first outbreak. Methods: we retrospectively reviewed the notes of all pediatric patients diagnosed with COVID-19. We enrolled patients with positive swabs or serology and classified them based on the pattern and the timing of presentation after the first outbreak. This setting was considered a reliable reflection of the consequences of unmitigated SARS-CoV-2 circulation. Results: We diagnosed 35 patients over a 3-month period and we identified six patterns presenting in two temporal phases: Early phase, Group 1 (median of 20 days from epidemic start, IQR: 15-27): neonatal sepsis (n.7), pneumonia (n.5), flu-like symptoms (n.2). Late phase, Group 2 (59:51-66 days, p < 0.001): MIS-C (n.18), neurological manifestations (n.3). Group 1 differed from Group 2 for younger age (1 vs. 8 years, p = 0.02), lower C-reactive protein (0.9 vs. 16.6 mg/dl, p = 0.008), procalcitonin (0.16 vs. 7.9 ng/ml, p = 0.008) and neutrophil count (3,765 vs. 6,780/μl, p = 0.006), higher rate of positive swabs (14/14 vs. 9/21, p < 0.001), higher lymphocyte count (3,000 vs. 930/μl, p = 0.006) and platelet count (323,000 vs. 210,000/μl, p = 0.009). Conclusions: Following an outbreak of unmitigated SARS-CoV-2 diffusion, infected children may present with clinical patterns suggesting two temporal clusters, the first characterized by markers of direct viral injury, the second suggesting an immune-mediated disease.
Collapse
Affiliation(s)
- Angelo Mazza
- Paediatric Pulmonology, Paediatric Department, Hospital Papa Giovanni XXIII, Bergamo, Italy
| | - Angelo Di Giorgio
- Paediatric Gastroenterology, Paediatric Department, Hospital Papa Giovanni XXIII, Bergamo, Italy
| | - Laura Martelli
- Paediatric Nephrology, Paediatric Department, Hospital Papa Giovanni XXIII, Bergamo, Italy
| | - Ciretta Pelliccia
- Paediatric Endocrinology, Paediatric Department, Hospital Papa Giovanni XXIII, Bergamo, Italy
| | | | - Vera Quadri
- Paediatric Allergology, Paediatric Department, Hospital Papa Giovanni XXIII, Bergamo, Italy
| | - Lucio Verdoni
- Paediatric Rheumatology, Paediatric Department, Hospital Papa Giovanni XXIII, Bergamo, Italy
| | - Alice Decio
- Child Neuropsychiatry Service, Hospital Papa Giovanni XXIII, Bergamo, Italy
| | - Maurizio Ruggeri
- Paediatric Department, Hospital Papa Giovanni XXIII, Bergamo, Italy
| | - Lorenzo D'Antiga
- Paediatric Department, Hospital Papa Giovanni XXIII, Bergamo, Italy
| |
Collapse
|
6
|
Verdoni L, Mazza A, Gervasoni A, Martelli L, Ruggeri M, Ciuffreda M, Bonanomi E, D'Antiga L. An outbreak of severe Kawasaki-like disease at the Italian epicentre of the SARS-CoV-2 epidemic: an observational cohort study. Lancet 2020; 395:1771-1778. [PMID: 32410760 PMCID: PMC7220177 DOI: 10.1016/s0140-6736(20)31103-x] [Citation(s) in RCA: 1561] [Impact Index Per Article: 390.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Revised: 05/03/2020] [Accepted: 05/04/2020] [Indexed: 02/06/2023]
Abstract
BACKGROUND The Bergamo province, which is extensively affected by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) epidemic, is a natural observatory of virus manifestations in the general population. In the past month we recorded an outbreak of Kawasaki disease; we aimed to evaluate incidence and features of patients with Kawasaki-like disease diagnosed during the SARS-CoV-2 epidemic. METHODS All patients diagnosed with a Kawasaki-like disease at our centre in the past 5 years were divided according to symptomatic presentation before (group 1) or after (group 2) the beginning of the SARS-CoV-2 epidemic. Kawasaki- like presentations were managed as Kawasaki disease according to the American Heart Association indications. Kawasaki disease shock syndrome (KDSS) was defined by presence of circulatory dysfunction, and macrophage activation syndrome (MAS) by the Paediatric Rheumatology International Trials Organisation criteria. Current or previous infection was sought by reverse-transcriptase quantitative PCR in nasopharyngeal and oropharyngeal swabs, and by serological qualitative test detecting SARS-CoV-2 IgM and IgG, respectively. FINDINGS Group 1 comprised 19 patients (seven boys, 12 girls; aged 3·0 years [SD 2·5]) diagnosed between Jan 1, 2015, and Feb 17, 2020. Group 2 included ten patients (seven boys, three girls; aged 7·5 years [SD 3·5]) diagnosed between Feb 18 and April 20, 2020; eight of ten were positive for IgG or IgM, or both. The two groups differed in disease incidence (group 1 vs group 2, 0·3 vs ten per month), mean age (3·0 vs 7·5 years), cardiac involvement (two of 19 vs six of ten), KDSS (zero of 19 vs five of ten), MAS (zero of 19 vs five of ten), and need for adjunctive steroid treatment (three of 19 vs eight of ten; all p<0·01). INTERPRETATION In the past month we found a 30-fold increased incidence of Kawasaki-like disease. Children diagnosed after the SARS-CoV-2 epidemic began showed evidence of immune response to the virus, were older, had a higher rate of cardiac involvement, and features of MAS. The SARS-CoV-2 epidemic was associated with high incidence of a severe form of Kawasaki disease. A similar outbreak of Kawasaki-like disease is expected in countries involved in the SARS-CoV-2 epidemic. FUNDING None.
Collapse
Affiliation(s)
- Lucio Verdoni
- Paediatric Department, Hospital Papa Giovanni XXIII, Bergamo, Italy
| | - Angelo Mazza
- Paediatric Department, Hospital Papa Giovanni XXIII, Bergamo, Italy
| | | | - Laura Martelli
- Paediatric Department, Hospital Papa Giovanni XXIII, Bergamo, Italy
| | - Maurizio Ruggeri
- Paediatric Department, Hospital Papa Giovanni XXIII, Bergamo, Italy
| | - Matteo Ciuffreda
- Paediatric Cardiology, Hospital Papa Giovanni XXIII, Bergamo, Italy
| | - Ezio Bonanomi
- Paediatric Intensive Care Unit, Hospital Papa Giovanni XXIII, Bergamo, Italy
| | - Lorenzo D'Antiga
- Paediatric Department, Hospital Papa Giovanni XXIII, Bergamo, Italy.
| |
Collapse
|
7
|
Longhi S, Del Vecchio L, Martelli L, Ardissino G. FP106RISK OF aHUS IN FAMILIES MEMBERS WITH COMPLEMENT GENES MUTATIONS. Nephrol Dial Transplant 2019. [DOI: 10.1093/ndt/gfz106.fp106] [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: 11/12/2022] Open
|
8
|
Martelli L, Peyrin-Biroulet L. Efficacy, Safety and Immunogenicity of Biosimilars in Inflammatory Bowel Diseases: A Systematic Review. Curr Med Chem 2019; 26:270-279. [DOI: 10.2174/0929867323666161014153346] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2016] [Revised: 10/03/2016] [Accepted: 10/03/2016] [Indexed: 12/24/2022]
Abstract
Background: Anti-tumor necrosis factor (anti-TNF) monoclonal antibodies have
revolutionized the treatment of inflammatory bowel diseases (IBD). However, because of
their complexity, their production is expensive contributing to their high price. As the patent
protection of these therapies has expired in several countries, biosimilars have been developed
to reduce the healthcare costs. The aim of this article is to review the literature on the
safety, efficacy and immunogenicity of biosimilars in IBD.
</P><P>
Methods: A PubMed literature search was performed using the following terms until May
2016: ‘biosimilars’, ‘CT-P13’, ‘infliximab’, ‘Crohn’s disease’, ‘ulcerative colitis’, ‘inflammatory
bowel diseases’, ‘efficacy’, ‘safety’, ‘immunogenicity’. Additionally, abstracts from international
meetings were also reviewed.
</P><P>
Results: A total of eleven studies in IBD patients provided real-world evidence on the efficacy,
safety and immunogenicity profile of biosimilars in IBD patients. Based on the available
evidence, CT-P13 is efficacious and well tolerated in IBD patients in a real-life setting.
The vast majority of studies only included IBD patients who had never received biological
therapies. Information regarding the interchangeability between CT-P13 and its originator is
currently being investigated in the NOR-SWITCH trial. Otherwise, the immunogenicity profile
of CT-P13 seems to be similar to the originator.
</P><P>
Conclusion: The infliximab biosimilar seems to be efficacious, safe and with a similar immunogenicity
profile as the originator in IBD. Large prospective post-marketing studies are
needed to assess the long-term safety profile of CT-P13. The use of infliximab biosimilars
may lead to major healthcare cost savings.
Collapse
Affiliation(s)
- Laura Martelli
- Department of Hepato-Gastroenterology, University Hospital of Nancy, Universite de Lorraine, Vandoeuvre- les-Nancy, France
| | - Laurent Peyrin-Biroulet
- Inserm U954 and Department of Hepato-Gastroenterology, University Hospital of Nancy, Universite de Lorraine, Vandoeuvre-les-Nancy, France
| |
Collapse
|
9
|
Ardissino G, Tel F, Testa S, Paglialonga F, Longhi S, Martelli L, Consolo S, Picicco D, Dodaro A, Daprai L, Colombo R, Arghittu M, Perrone M, Chidini G, Scalia Catenacci S, Cropanese I, Consonni D. A simple prognostic index for Shigatoxin-related hemolytic uremic syndrome at onset: data from the ItalKid-HUS network. Eur J Pediatr 2018; 177:1667-1674. [PMID: 30094644 DOI: 10.1007/s00431-018-3198-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [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: 04/17/2018] [Revised: 06/09/2018] [Accepted: 06/19/2018] [Indexed: 10/28/2022]
Abstract
Shigatoxin Escherichia coli-related hemolytic uremic syndrome (eHUS) is a severe thrombotic microangiopathy (TMA) burdened by life-threatening complications and long-term sequelae. Since hemoconcentration is associated with worse outcome, we tried to develop a reliable and easy-to-calculate index for predicting complications and sequelae based on hemoglobin (Hb) at presentation. The first laboratory examinations with signs of TMA in eHUS patients were analyzed in relation to the outcomes with the receiver operating characteristic curves and their areas under the curve (AUC) for Hb and creatinine (sCr). A total of 197 eHUS patients were identified of whom 24% did not have anemia at presentation. Hb level was the best predictor of a poor outcome (AUC 0.67) but the combination of Hb with sCr, in the formula [(Hb in g/dL + (sCr in mg/dL × 2)], showed an even better AUC of 0.75. The described scoring system was also strongly associated and predictive of all complications and health care needs (8% of patients with scoring > 13 died or entered a permanent vegetative state compared with 0% of those with ≤ 13).Conclusion: The presented score is a simple and early predictor of both short- and long-term outcomes and identifies patients who should undergo rapid volume expansion to counteract hemoconcentration, the spreading of microvascular thrombosis, and the consequent increased organ damage. What is Known: • In eHUS, hemoconcentration is associated with worse short- and long-term outcome. • A prognostic index to identify patients at higher risk for complications at presentation is not available. What is New: • We developed a simple and early prognostic index for eHUS outcome with the combination of Hb and sCr at onset, in the following formula [(Hb in g/dL + (sCr in mg/dL × 2)]. • The proposed HUS Severity Score can promptly identify patients with good outcome and those with high risk of worse short- and long-term outcome.
Collapse
Affiliation(s)
- Gianluigi Ardissino
- Center for HUS Prevention Control and Management, Pediatric Nephrology, Dialysis and Transplantation Unit, IRCCS Foundation Ca' Granda, Ospedale Maggiore Policlinico, Milan, Italy.
| | - Francesca Tel
- Center for HUS Prevention Control and Management, Pediatric Nephrology, Dialysis and Transplantation Unit, IRCCS Foundation Ca' Granda, Ospedale Maggiore Policlinico, Milan, Italy
| | - Sara Testa
- Center for HUS Prevention Control and Management, Pediatric Nephrology, Dialysis and Transplantation Unit, IRCCS Foundation Ca' Granda, Ospedale Maggiore Policlinico, Milan, Italy
| | - Fabio Paglialonga
- Center for HUS Prevention Control and Management, Pediatric Nephrology, Dialysis and Transplantation Unit, IRCCS Foundation Ca' Granda, Ospedale Maggiore Policlinico, Milan, Italy
| | - Selena Longhi
- Center for HUS Prevention Control and Management, Pediatric Nephrology, Dialysis and Transplantation Unit, IRCCS Foundation Ca' Granda, Ospedale Maggiore Policlinico, Milan, Italy
| | - Laura Martelli
- Center for HUS Prevention Control and Management, Pediatric Nephrology, Dialysis and Transplantation Unit, IRCCS Foundation Ca' Granda, Ospedale Maggiore Policlinico, Milan, Italy
| | - Silvia Consolo
- Center for HUS Prevention Control and Management, Pediatric Nephrology, Dialysis and Transplantation Unit, IRCCS Foundation Ca' Granda, Ospedale Maggiore Policlinico, Milan, Italy
| | - Damiano Picicco
- Center for HUS Prevention Control and Management, Laboratory of Microbiology, IRCCS Foundation Ca' Granda, Ospedale Maggiore Policlinico, Milan, Italy
| | - Antonella Dodaro
- Center for HUS Prevention Control and Management, Laboratory of Microbiology, IRCCS Foundation Ca' Granda, Ospedale Maggiore Policlinico, Milan, Italy
| | - Laura Daprai
- Center for HUS Prevention Control and Management, Laboratory of Microbiology, IRCCS Foundation Ca' Granda, Ospedale Maggiore Policlinico, Milan, Italy
| | - Rosaria Colombo
- Center for HUS Prevention Control and Management, Laboratory of Microbiology, IRCCS Foundation Ca' Granda, Ospedale Maggiore Policlinico, Milan, Italy
| | - Milena Arghittu
- Center for HUS Prevention Control and Management, Laboratory of Microbiology, IRCCS Foundation Ca' Granda, Ospedale Maggiore Policlinico, Milan, Italy
| | - Michela Perrone
- Center for HUS Prevention Control and Management, Neonatal Intensive Care Unit, IRCCS Foundation Ca' Granda, Ospedale Maggiore Policlinico, Milan, Italy
| | - Giovanna Chidini
- Center for HUS Prevention Control and Management, Maternal-Child Anesthesia and Intensive Care Departement, IRCCS Foundation Ca' Granda, Ospedale Maggiore Policlinico, Milan, Italy
| | - Stefano Scalia Catenacci
- Center for HUS Prevention Control and Management, Maternal-Child Anesthesia and Intensive Care Departement, IRCCS Foundation Ca' Granda, Ospedale Maggiore Policlinico, Milan, Italy
| | - Isabella Cropanese
- Center for HUS Prevention Control and Management, Child and Adolescent Neuropsychiatric Unit, IRCCS Foundation Ca' Granda, Ospedale Maggiore Policlinico, Milano, Italy
| | - Dario Consonni
- Center for HUS Prevention Control and Management at the Epidemiology Unit, Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Milano, Italy
| | | |
Collapse
|
10
|
Colomer-Lahiguera S, Bryant-Lukosius D, Rietkoetter S, Martelli L, Ribi K, Orcurto A, Juergens R, Eicher M. The use of patient reported outcome (PRO) instruments in immune checkpoint inhibitor (ICI) therapy for cancer: A systematic review. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy341.028] [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: 11/14/2022] Open
|
11
|
Martelli L, Lopez A, Strobel S, Danese S, Roblin X, Baumann C, Peyrin-Biroulet L. Adherence to infliximab therapy in inflammatory bowel disease patients in a real-life setting. J Dig Dis 2017; 18:566-573. [PMID: 28858439 DOI: 10.1111/1751-2980.12539] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [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: 03/27/2017] [Revised: 07/10/2017] [Accepted: 08/27/2017] [Indexed: 12/11/2022]
Abstract
OBJECTIVE To assess adherence to infliximab (IFX) therapy in inflammatory bowel disease patients, to investigate reasons for non-adherence and to identify predictors for non-adherence. METHODS This observational study was conducted in two French referral university hospitals between 1 September and 31 October, 2011. Patients were systematically asked if they had already delayed or missed an IFX perfusion since the beginning of the treatment and about the reasons for their non-adherence. RESULTS Of the 162 included patients (121 Crohn's disease [CD], 41 ulcerative colitis), 87 (53.7%) reported a delay of at least one IFX injection and 14 (8.6%) missed at least one IFX perfusion since the beginning of the treatment. The overall non-adherence rate was 54.3%. Pooling all misses, the main reasons for non-adherence were pregnancy (33.3%), intentional non-adherence (20%) and forgetfulness (13.3%). Pooling all delays, the main reasons for non-adherence were professional constraints (46.9%), infections (17.3%) and travels (14.3%). Perineal disease was associated with IFX delays (P = 0.0007, odds ratio 4.0), whereas active CD/UC was associated with IFX misses (P = 0.0258, OR = 5.4). CONCLUSIONS The overall non-adherence rate for IFX use was 54.3%. Professional constraints and intentional non-adherence were the leading causes of non-adherence. Perineal disease and active CD were negatively related to adherence.
Collapse
Affiliation(s)
- Laura Martelli
- Inserm U954 and Department of Gastroenterology, University Hospital of Nancy, Lorraine University, Vandoeuvre-lès-Nancy, France
| | - Anthony Lopez
- Inserm U954 and Department of Gastroenterology, University Hospital of Nancy, Lorraine University, Vandoeuvre-lès-Nancy, France
| | - Sophie Strobel
- Department of Gastroenterology, University Hospital of Saint Etienne, Saint-Etienne, France
| | - Silvio Danese
- IBD Center, Department of Gastroenterology, Humanitas Clinical and Research Center, Milan, Italy
| | - Xavier Roblin
- Department of Gastroenterology, University Hospital of Saint Etienne, Saint-Etienne, France
| | - Cédric Baumann
- Clinical Research Support Facility PARC, Nancy University Hospital, Nancy, France
| | - Laurent Peyrin-Biroulet
- Inserm U954 and Department of Gastroenterology, University Hospital of Nancy, Lorraine University, Vandoeuvre-lès-Nancy, France
| |
Collapse
|
12
|
Dirrenberger B, Clerc-Urmès I, Germain A, Bresler L, Olivera P, Martelli L, Danese S, Baumann C, Laurent V, Peyrin-Biroulet L. Value of cross-sectional imaging in assessing active Crohn's disease before stoma reversal. Dig Liver Dis 2017; 49:864-871. [PMID: 28454853 DOI: 10.1016/j.dld.2017.03.028] [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] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/24/2017] [Revised: 03/28/2017] [Accepted: 03/28/2017] [Indexed: 12/11/2022]
Abstract
BACKGROUND There are currently no guidelines on the need to assess disease activity before stoma reversal in Crohn's disease (CD). We sought to determine the value of cross-sectional imaging for detecting active CD before stoma reversal. METHODS 38 CD patients underwent cross-sectional imaging before stoma reversal. CD activity was blindly evaluated by an independent radiologist. Postoperative outcomes were recorded. RESULTS Before stoma reversal, cross-sectional imaging identified active CD in 20 of the 38 study participants (52.6%). In 9 out of 10 tested patients, radiologic and endoscopic assessments gave concordant findings with regard to CD recurrence before stoma reversal. Stoma reversal was delayed in half of the patients with active CD and in none of the patients without active CD. Before stoma reversal, tumor necrosis factor alpha antagonists or immunosuppressants were initiated in 45% of the patients with active CD and 5.6% of the patients without active CD. In the year following stoma reversal, the recurrence rate (in a radiologic assessment) was higher in patients with active CD than in patients without active CD (75.0% vs. 30.8%, respectively; p=0.04). CONCLUSION Cross-sectional imaging revealed postoperative recurrence in about a quarter of patients before stoma reversal; this finding may influence the postoperative treatment strategy and outcomes.
Collapse
Affiliation(s)
- Bastien Dirrenberger
- INSERM U954 and Department of Hepatogastroenterology, Nancy University Medical Center, Lorraine University, Nancy, France
| | - Isabelle Clerc-Urmès
- ESPRI-BioBase Unit, PARC Clinical Research Support Facility, Nancy University Medical Center, Nancy, France
| | - Adeline Germain
- Department of Digestive Surgery, Nancy University Medical Center, Nancy, France
| | - Laurent Bresler
- Department of Digestive Surgery, Nancy University Medical Center, Nancy, France
| | - Pablo Olivera
- INSERM U954 and Department of Hepatogastroenterology, Nancy University Medical Center, Lorraine University, Nancy, France
| | - Laura Martelli
- INSERM U954 and Department of Hepatogastroenterology, Nancy University Medical Center, Lorraine University, Nancy, France
| | | | - Cédric Baumann
- ESPRI-BioBase Unit, PARC Clinical Research Support Facility, Nancy University Medical Center, Nancy, France
| | - Valérie Laurent
- Department of Radiology, Nancy University Medical Center, Nancy, France
| | - Laurent Peyrin-Biroulet
- INSERM U954 and Department of Hepatogastroenterology, Nancy University Medical Center, Lorraine University, Nancy, France.
| |
Collapse
|
13
|
Martelli L, Colard A, Fontaine F, Deflandre J, Bastens B, Louis E. Evaluation of the efficacy of octreotide LAR in the treatment of Crohn's disease associated refractory diarrhea. Scand J Gastroenterol 2017; 52:564-569. [PMID: 28270045 DOI: 10.1080/00365521.2017.1284893] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [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: 02/04/2023]
Abstract
OBJECTIVES Diarrhea is one of the main symptoms of Crohn's disease (CD). It is usually significantly improved with specific CD treatments, loperamide or cholestyramine. However, in some cases, diarrhea becomes refractory. The aim of this study was to assess the safety and efficacy of octreotide in this situation. MATERIALS AND METHODS Fifteen patients with CD refractory diarrhea defined by at least an average of five smooth or liquid stools per day despite an optimized CD treatment were included from three Belgian centers. Two patients were lost to follow-up. A subcutaneous injection of 100 μg octreotide was performed three times a day during three days. When the drug had been well tolerated, an intramuscular injection of 30 mg octreotide (Sandostatin® LAR 30) was realized. Evaluation was done at day 31. The primary endpoint was to assess the effect on the mean number of smooth or liquid stools per day. RESULTS A significant reduction (p = 0.0001) of the average number of smooth or liquid stools over the last seven days was observed between baseline and day 31. The maximum number of smooth or liquid stools also significantly decreased (p = 0.0009). Four patients (26.7%) presented mild nonspecific adverse events but no serious one. We also observed a significant decrease (p = 0.0006) of the Harvey-Bradshaw Index (HBI) and a significant improvement (p = 0.0012) of the inflammatory bowel disease questionnaire (IBDQ). CONCLUSIONS In this uncontrolled open-label study, octreotide appeared safe and effective in CD refractory diarrhea, in addition to CD treatments. It significantly improved the number of liquid or smooth stools, the HBI and the IBDQ.
Collapse
Affiliation(s)
- Laura Martelli
- a Department of Gastroenterology , CHC Clinique Saint-Joseph , Liège , Belgium
| | - Arnaud Colard
- a Department of Gastroenterology , CHC Clinique Saint-Joseph , Liège , Belgium
| | - Fernand Fontaine
- a Department of Gastroenterology , CHC Clinique Saint-Joseph , Liège , Belgium
| | | | - Boris Bastens
- a Department of Gastroenterology , CHC Clinique Saint-Joseph , Liège , Belgium
| | - Edouard Louis
- c Department of Gastroenterology , University Hospital CHU of Liège , Liège , Belgium
| |
Collapse
|
14
|
Veiga-Castelli L, Rosa e Silva J, Meola J, Ferriani R, Yoshimoto M, Santos S, Squire J, Martelli L. Genomic alterations detected by comparative genomic hybridization in ovarian endometriomas. Braz J Med Biol Res 2010; 43:799-805. [DOI: 10.1590/s0100-879x2010007500072] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2010] [Accepted: 07/19/2010] [Indexed: 11/22/2022] Open
Affiliation(s)
| | | | - J. Meola
- Universidade de São Paulo; Universidade de São Paulo, Brasil
| | | | | | | | | | | |
Collapse
|
15
|
Martelli L, Ragazzi E, Di Mario F, Basato M, Martelli M. Cisplatin and oxaliplatin cytotoxic effects in sensitive and cisplatin-resistant human cervical tumor cells: time and mode of application dependency. Anticancer Res 2009; 29:3931-3937. [PMID: 19846931] [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: 05/28/2023]
Abstract
BACKGROUND Time-dependence of cisplatin (CDDP) and oxaliplatin (L-OHP) cytotoxic effects in A431 and A431/Pt cells (sensitive and CDDP-resistant human cervical tumor cells) were investigated. MATERIALS AND METHODS The drug application modes were pulse (12.5, 25 or 50 microM up to 72 h) and pulse-plus-chase (50 microM for 2, 4 or 6 h, followed by washing and 72 h-incubation in drug-free medium). RESULTS In the A431 cells, the pulse drug application showed time-effect curves with two plateaux; the inhibitory activity of CDDP was higher than that of L-OHP. The same growth-inhibition fraction was reached by L-OHP in a longer time than CDDP. In the A431/Pt cells, the curve shapes for both drugs were similar in both application modes and had the same general characteristics, noted in the parental cell line. CDDP appeared less active than L-OHP. CONCLUSION Different cytotoxicity curves of Pt-drugs could be dictated by the presence of the bulky diaminocyclohexane (DACH) ligand, affecting the kinetics of Pt-DNA binding; mismatch repair (MSH2) protein is involved in the resistance.
Collapse
Affiliation(s)
- Laura Martelli
- Department of Pharmacology and Anesthesiology, University of Padova, Largo Meneghetti, 2, I-35131 Padova, Italy
| | | | | | | | | |
Collapse
|
16
|
Menozzi A, Pozzoli C, Poli E, Martelli M, Martelli L, Zullian C, Bertini S. Effects of oral curcumin on indomethacin-induced small intestinal damage in the rat. Drug Discov Ther 2009; 3:71-76. [PMID: 22495480] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Nonsteroidal anti-inflammatory drug (NSAID)-induced injury on gastrointestinal tract is well documented, and jejunal inflammation caused by indomethacin in rats is a broadly used experimental model of enteritis. We evaluated the effect of oral curcumin, a compound known to possess anti-inflammatory and anti-oxidant properties, on indomethacin-induced enteritis in the rat. Curcumin (50, 100, and 300 mg/kg) was given to rats by oral gavage 48, 24, and 1 h before enteritis was induced by intragastric administration of 20 mg/kg indomethacin. After 24 h, intestinal macroscopic lesions, myeloperoxidase activity and lipid peroxidation levels were assessed. Curcumin at the dose of 50 mg/kg was uneffective, while at the dose of 100 and 300 mg/kg significantly reduced macroscopic damage caused by indomethacin. By contrast, curcumin at all tested doses was unable to modify indomethacin-induced increases of myeloperoxidase and lipid peroxidation. Curcumin (100 and 300 mg/kg) significantly increased lipid peroxidation level in normal intestinal tissues of rats. Present data show that oral curcumin protects against macroscopic injury induced by indomethacin, leaving unaffected neutrophil infiltration and oxidative cell damage, thus suggesting that this beneficial effect is due to mechanisms not involving anti-inflammatory or antioxidant activities.
Collapse
Affiliation(s)
- A Menozzi
- Department of Animal Health, University of Parma, Parma, Italy
| | | | | | | | | | | | | |
Collapse
|
17
|
Malerba A, Vitiello L, Segat D, Dazzo E, Frigo M, Scambi I, De Coppi P, Boldrin L, Martelli L, Pasut A, Romualdi C, Bellomo RG, Vecchiet J, Baroni MD. Selection of multipotent cells and enhanced muscle reconstruction by myogenic macrophage-secreted factors. Exp Cell Res 2009; 315:915-27. [PMID: 19371636 DOI: 10.1016/j.yexcr.2009.01.005] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2008] [Revised: 01/09/2009] [Accepted: 01/09/2009] [Indexed: 11/17/2022]
Abstract
Skeletal muscle regeneration relies on satellite cells, a population of myogenic precursors. Inflammation also plays a determinant role in the process, as upon injury, macrophages are attracted by the damaged myofibers and the activated satellite cells and act as key elements of dynamic muscle supportive stroma. Yet, it is not known how macrophages interact with the more profound stem cells of the satellite cell niche. Here we show that in the presence of a murine macrophage conditioned medium (mMCM) a subpopulation of multipotent cells could be selected and expanded from adult rat muscle. These cells were small, round, poorly adhesive, slow-growing and showed mesenchymal differentiation plasticity. At the same time, mMCM showed clear myogenic capabilities, as experiments with satellite cells mechanically isolated from suspensions of single myofibers showed that the macrophagic factors inhibited their tendency to shift towards adipogenesis. In vivo, intramuscular administrations of concentrated mMCM in a rat model of extensive surgical ablation dramatically improved muscle regeneration. Altogether, these findings suggest that macrophagic factors could be of great help in developing therapeutic protocols with myogenic stem cells.
Collapse
Affiliation(s)
- Alberto Malerba
- Department of Biology, University of Padova, Via Ugo Bassi 58/B, 35131 Padova, Italy
| | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
18
|
Rosa-e-Silva J, Meola J, Dentillo D, Ferriani R, Veiga L, Martelli L. Glycodelin expression in women with endometriosis. Fertil Steril 2008. [DOI: 10.1016/j.fertnstert.2008.07.1145] [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: 10/21/2022]
|
19
|
Dentillo DB, Souza FRP, Meola J, Vieira GS, Yazlle MEHD, Goulart LR, Martelli L. No evidence of association of MUC-1 genetic polymorphism with embryo implantation failure. Braz J Med Biol Res 2008; 40:793-7. [PMID: 17581677 DOI: 10.1590/s0100-879x2007000600007] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2006] [Accepted: 04/18/2007] [Indexed: 11/22/2022] Open
Abstract
Pregnancy loss can be caused by several factors involved in human reproduction. Although up to 50% of cases remain unexplained, it has been postulated that the major cause of failed pregnancy is an error of embryo implantation. Transmembrane mucin-1 (MUC-1) is a glycoprotein expressed on the endometrial cell surface which acts as a barrier to implantation. The gene that codes for this molecule is composed of a polymorphic tandem repeat of 60 nucleotides. Our objective was to determine if MUC-1 genetic polymorphism is associated with implantation failure in patients with a history of recurrent abortion. The study was conducted on 10 women aged 25 to 35 years with no history of successful pregnancy and with a diagnosis of infertility. The control group consisted of 32 patients aged 25 to 35 years who had delivered at least two full-term live children and who had no history of abortions or fetal losses. MUC-1 amplicons were obtained by PCR and observed on agarose and polyacrylamide gel after electrophoresis. Statistical analysis showed no significant difference in the number of MUC-1 variable number of tandem repeats between these groups (P > 0.05). Our results suggest that there is no effect of the polymorphic MUC-1 sequence on the implantation failure. However, the data do not exclude MUC-1 relevance during embryo implantation. The process is related to several associated factors such as the mechanisms of gene expression in the uterus, specific MUC-1 post-translational modifications and appropriate interactions with other molecules during embryo implantation.
Collapse
Affiliation(s)
- D B Dentillo
- Departamento de Genética, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brasil
| | | | | | | | | | | | | |
Collapse
|
20
|
Viganò A, Zuccotti GV, Martelli L, Giacomet V, Cafarelli L, Borgonovo S, Beretta S, Rombolà G, Mora S. Renal safety of tenofovir in HIV-infected children: a prospective, 96-week longitudinal study. Clin Drug Investig 2007; 27:573-81. [PMID: 17638398 DOI: 10.2165/00044011-200727080-00006] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.8] [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: 01/14/2023]
Abstract
BACKGROUND The renal safety of tenofovir in HIV-infected children has not been well studied. In paediatrics, prediction of glomerular filtration rate (GFR) is usually obtained by the Schwartz equation; the Cockcroft-Gault equation is considered more appropriate in children aged >12 years, but can be misleading in younger children. The aims of this study were to assess renal safety and GFR changes as estimated by the Schwartz and Cockcroft-Gault equations in HIV-infected children treated with tenofovir for 96 weeks. METHODS Several parameters of glomerular and tubular function were prospectively assessed (at baseline and at weeks 24, 48, 72 and 96) in 27 HIV-infected children (aged 4.9-18.0 years) receiving a tenofovir-containing antiretroviral regimen. GFR was estimated using Schwartz and Cockcroft-Gault equations in children younger and older than 12 years, respectively. RESULTS No child experienced a grade 1 (> or =44 micromol/L) or higher increase in serum creatinine or a grade 1 (< or =0.71 mmol/L) or higher hypophosphataemia. Serum bicarbonate values were in the normal range for age at baseline. Mean serum creatinine, serum phosphorus and serum bicarbonate values remained unchanged. No child showed proteinuria, microalbuminuria or glycosuria at baseline or during the study period. The mean urinary protein/creatinine, albumin/creatinine, alpha(1)-microglobulin/creatinine and maximal tubular phosphate reabsorption (TmPO(4)/GFR) ratios remained unchanged. Up to week 96, no patient experienced a significant decrease in GFR, as estimated by the more appropriate formula for age. CONCLUSION Through 96 weeks, we found no evidence of impaired glomerular or tubular renal function in tenofovir-treated HIV-infected children.
Collapse
Affiliation(s)
- A Viganò
- Clinic of Paediatrics, L Sacco Hospital, University of Milan, Milan, Italy.
| | | | | | | | | | | | | | | | | |
Collapse
|
21
|
Ferriani R, Meola J, Dentillo D, Rosa e Silva J, Silva W, Martelli L. Genes down regulated in women with endometriosis obtained by rapid subtraction hybridization (RaSH). Fertil Steril 2007. [DOI: 10.1016/j.fertnstert.2007.07.735] [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]
|
22
|
Martelli L, Ragazzi E, di Mario F, Martelli M, Castagliuolo I, Dal Maschio M, Palù G, Maschietto M, Scorzeto M, Vassanelli S, Brun P. A potential role for the vanilloid receptor TRPV1 in the therapeutic effect of curcumin in dinitrobenzene sulphonic acid-induced colitis in mice. Neurogastroenterol Motil 2007. [PMID: 17640182 DOI: 10.1111/j.1365] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
A protective role of the transient potential vanilloid receptor 1 (TRPV1) in intestinal inflammation induced by dinitrobenzene sulphonic acid (DNBS) has been recently demonstrated. Curcumin, the major active component of turmeric, is also able to prevent and ameliorate the severity of the damage in DNBS-induced colitis. We evaluated the possibility that curcumin (45 mg kg(-1) day p.o. for 2 days before and 5 days after the induction of colitis) was able to reduce DNBS-induced colitis in mice, by acting as a TRPV1 agonist. Macroscopic damage score, histological damage score and colonic myeloperoxidase (MPO) activity were significantly lower (by 71%, 65% and 73%, respectively; P < 0.01), in animals treated with curcumin compared with untreated animals. Capsazepine (30 mg kg(-1), i.p.), a TRPV1 receptor antagonist, completely abolished the protective effects of curcumin. To extend these data in vitro, Xenopus oocytes expressing rat TRPV1 were examined. Capsaicin-evoked currents (3.3 micromol L(-1)) disappeared subsequent either to removal of the agonist or subsequent to the addition of capsazepine. However, curcumin (30 micromol L(-1)) was ineffective both as regard direct modification of cell membrane currents and as regard interference with capsaicin-mediated effects. As sensitization of the TRPV1 receptor by mediators of inflammation in damaged tissues has been shown previously, our results suggest that in inflamed, but not in normal tissue, curcumin can interact with the TRPV1 receptor to mediate its protective action in DNBS-induced colitis.
Collapse
Affiliation(s)
- L Martelli
- Department of Pharmacology and Anaesthesiology, Universitá di Padova, 2 Largo Menenghetti, I-35131 Padua, Italy
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
23
|
Martelli L, Ragazzi E, di Mario F, Martelli M, Castagliuolo I, Dal Maschio M, Palù G, Maschietto M, Scorzeto M, Vassanelli S, Brun P. A potential role for the vanilloid receptor TRPV1 in the therapeutic effect of curcumin in dinitrobenzene sulphonic acid-induced colitis in mice. Neurogastroenterol Motil 2007; 19:668-74. [PMID: 17640182 DOI: 10.1111/j.1365-2982.2007.00928.x] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.7] [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: 12/25/2022]
Abstract
A protective role of the transient potential vanilloid receptor 1 (TRPV1) in intestinal inflammation induced by dinitrobenzene sulphonic acid (DNBS) has been recently demonstrated. Curcumin, the major active component of turmeric, is also able to prevent and ameliorate the severity of the damage in DNBS-induced colitis. We evaluated the possibility that curcumin (45 mg kg(-1) day p.o. for 2 days before and 5 days after the induction of colitis) was able to reduce DNBS-induced colitis in mice, by acting as a TRPV1 agonist. Macroscopic damage score, histological damage score and colonic myeloperoxidase (MPO) activity were significantly lower (by 71%, 65% and 73%, respectively; P < 0.01), in animals treated with curcumin compared with untreated animals. Capsazepine (30 mg kg(-1), i.p.), a TRPV1 receptor antagonist, completely abolished the protective effects of curcumin. To extend these data in vitro, Xenopus oocytes expressing rat TRPV1 were examined. Capsaicin-evoked currents (3.3 micromol L(-1)) disappeared subsequent either to removal of the agonist or subsequent to the addition of capsazepine. However, curcumin (30 micromol L(-1)) was ineffective both as regard direct modification of cell membrane currents and as regard interference with capsaicin-mediated effects. As sensitization of the TRPV1 receptor by mediators of inflammation in damaged tissues has been shown previously, our results suggest that in inflamed, but not in normal tissue, curcumin can interact with the TRPV1 receptor to mediate its protective action in DNBS-induced colitis.
Collapse
Affiliation(s)
- L Martelli
- Department of Pharmacology and Anaesthesiology, Universitá di Padova, 2 Largo Menenghetti, I-35131 Padua, Italy
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
24
|
Di Mario F, Cavallaro LG, Nouvenne A, Stefani N, Cavestro GM, Iori V, Maino M, Comparato G, Fanigliulo L, Morana E, Pilotto A, Martelli L, Martelli M, Leandro G, Franzè A. A curcumin-based 1-week triple therapy for eradication of Helicobacter pylori infection: something to learn from failure? Helicobacter 2007; 12:238-43. [PMID: 17493004 DOI: 10.1111/j.1523-5378.2007.00497.x] [Citation(s) in RCA: 80] [Impact Index Per Article: 4.7] [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: 12/12/2022]
Abstract
BACKGROUND Curcumin is the principal element of turmeric powder extracted from the root of Curcuma longa. Studies on curcumin have demonstrated some anti-Helicobacter pylori activity as well as immunomodulating properties. N-acetylcysteine and lactoferrin with their respective mucolytic and antibacterial activities might also be effective in H. pylori eradication therapy. AIM To determine if a 7-day non-antibiotic therapy comprised of curcumin, lactoferrin, N-acetylcysteine, and pantoprazole was effective for eradication of H. pylori infection and reduction of gastric inflammation, assessed by serum pepsinogens and relief of symptoms. SUBJECTS AND METHODS Twenty-five consecutive H. pylori-positive patients (12 males, mean age 50 +/- 12 years, range 31-76) with functional dyspepsia were enrolled. Patients were administered for 7 days curcumin 30 mg b.i.d., bovine lactoferrin 100 mg b.i.d., N-acetylcysteine 600 mg b.i.d., and pantoprazole 20 mg b.i.d. H. pylori status and upper gastrointestinal symptoms were assessed by (13)C-urea breath test and a scale of upper gastrointestinal symptoms intensity (absent, mild, moderate, and severe), as well as a blood test for serum pepsinogens (sPGI, sPGII), gastrin-17 (G-17), and anti-H. pylori IgG (IgG-Hp) at baseline (T0) and after 2 months (T1). RESULTS Three of 25 patients (12%) were cured of H. pylori infection. A significant decrease in the overall severity of symptoms (T0: 6, interquartile range [IQR]: 4.5-8; T1: 2, IQR: 2-3; p < or = .001), and sPGII (T0: 16 microg/L, IQR: 13-22; T1: 10 microg/L, IQR: 8-16; p < or = .001) and sPGI (T0: 82 microg/L, IQR: 67-97; T1: 74 microg/L, IQR: 62-94; p = .02) levels were observed after 2 months of the treatment. IgG and G-17 values did not significantly decrease after 2 months. CONCLUSIONS This novel therapy was not effective for H. pylori eradication. However, despite the bacterium persistence, significant improvement of dyspeptic symptoms and reduction of serologic signs of gastric inflammation were observed after 2 months at the end of the 7-day treatment schedule.
Collapse
Affiliation(s)
- Francesco Di Mario
- Section of Gastroenterology, Department of Clinical Sciences, University of Parma, Italy.
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
25
|
Martelli L, Di Mario F, Botti P, Ragazzi E, Martelli M, Kelland L. Accumulation, platinum–DNA adduct formation and cytotoxicity of cisplatin, oxaliplatin and satraplatin in sensitive and resistant human osteosarcoma cell lines, characterized by p53 wild-type status. Biochem Pharmacol 2007; 74:20-7. [PMID: 17466278 DOI: 10.1016/j.bcp.2007.03.025] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2007] [Revised: 03/26/2007] [Accepted: 03/26/2007] [Indexed: 11/25/2022]
Abstract
P53 gene status is implicated in the cytotoxic drug sensitivity and published research has been mostly addressed to cisplatin (CDDP) activity. Previous study in our laboratory considered p53 mutant cell lines A431 (parental) and A431/Pt (CDDP-resistant counterpart, resistance factor R.F.=2.6). For a comparison which contributes to a deeper appreciation of the process that mediates the Pt drug cellular effects, we extended our investigation to the p53 wild-type cell lines U2-OS (human osteosarcoma) and its CDDP-resistant counterpart U2-OS/Pt (R.F.=5). We compared the activity of CDDP, oxaliplatin (L-OHP) and satraplatin (JM216) whose hydrophobicity rank is JM216>L-OHP>CDDP. In U2-OS cells the three drugs accumulated similarly, while in U2-OS/Pt the most hydrophobic drugs were privileged. No significant differences in efflux were observed between sensitive and resistant cell lines. The growing of CDDP resistance seems to be overcome by increasing the hydrophobicity of the Pt agent. An almost linear trend seems to relate R.F. and drug hydrophobicity in U2-OS/Pt and A431/Pt cells. DNA platination in U2-OS as in A431 cells is at the lowest levels for L-OHP. In U2-OS cell line the IC(50) of CDDP (17.6 microM) and JM216 (88.02 microM) do not correlate with their similar levels of Pt-DNA adducts (mean value approximately 0.14 pmol Pt/microg DNA). The presence of a wild-type p53 exalts either CDDP cytotoxicity (two-fold more active in U2-OS than in A431 cells) and CDDP resistance in comparison to a p53 mutant type. The p53 status seems to not improve JM216 or L-OHP cytotoxicity in both cell lines.
Collapse
Affiliation(s)
- Laura Martelli
- Department of Pharmacology and Anaesthesiology, University of Padova, Largo Meneghetti, 2, I-35131 Padova, Italy
| | | | | | | | | | | |
Collapse
|
26
|
Fermani S, Sparla F, Falini G, Martelli L, Zaffagnini M, Ripamonti A, Casadio R, Pupillo P, Trost P. Merging crystallography, site-directed mutagenesis and molecular modelling to unravel the regulatory mechanism of photosynthetic GAPDH. Acta Crystallogr A 2006. [DOI: 10.1107/s0108767306097030] [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: 11/10/2022] Open
|
27
|
Martelli L, Di Mario F, Ragazzi E, Apostoli P, Leone R, Perego P, Fumagalli G. Different accumulation of cisplatin, oxaliplatin and JM216 in sensitive and cisplatin-resistant human cervical tumour cells. Biochem Pharmacol 2006; 72:693-700. [PMID: 16844093 DOI: 10.1016/j.bcp.2006.06.008] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2006] [Revised: 06/07/2006] [Accepted: 06/09/2006] [Indexed: 11/21/2022]
Abstract
The significance of reduced drug accumulation in resistance to cisplatin was investigated by using cisplatin, oxaliplatin and JM216 (hydrophobicity rank: JM216>oxaliplatin>cisplatin) in human squamous cell carcinoma cell line A431 and its cisplatin-resistant counterpart A431/Pt. While cisplatin showed a resistance factor of 2.6, oxaliplatin and JM216 circumvented the resistance. Platinum accumulation after cisplatin exposure was lower (2.4-fold) in A431/Pt than in A431 cells, whereas a similar accumulation was found in the two cell lines when oxaliplatin or JM216 were used, thereby suggesting the capability of the latter drugs to bypass the accumulation defect. In the A431 cell line platinum accumulated to a similar extent after exposure to cisplatin, oxaliplatin or JM216, while in A431/Pt cells, Platinum accumulation depended on the hydrophobicity of the drug, and an increased hydrophobicity favours the uptake. No difference in efflux of cisplatin was found between the two cell lines. The values of platinum-DNA binding in A431 cells were similar for cisplatin and JM216 and higher than those of oxaliplatin. In A431/Pt cells: (i) Pt-DNA binding levels of JM216 remained as in sensitive ones; (ii) Pt-DNA levels of cisplatin and oxaliplatin were very similar and nearly two-fold lower than those of JM216. Such results, in this cell system characterized by a low level of cisplatin resistance, support a model whereby platinum uptake occurs by a mechanism of facilitated diffusion, perhaps involving a gated channel, which can be lost during the selection of the drug-resistant variant(s). The hydrophobicity of the drug can be the key to bypass resistance.
Collapse
Affiliation(s)
- Laura Martelli
- Department of Medicine and Public Health, Section of Pharmacology, University of Verona, Policlinico G.B. Rossi, P.le A. Scuro 10, 37134 Verona, Italy
| | | | | | | | | | | | | |
Collapse
|
28
|
Cerè V, Grossi L, Munari D, Pollicino S, Martelli L, Martelli M. Platinum (II) complexes with stereochemically-defined thiepane dioxide diamine ligands as anticancer drugs. Anticancer Res 2006; 26:1815-9. [PMID: 16827112] [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: 05/10/2023]
Abstract
Platinum (II) complexes are accredited with biological activities. New complexes with thiepane dioxide diamine as ligands, characterized by defined stereochemical features, a flexible 7-membered thiepane moiety and by C2 symmetry, were prepared. The complexes, related to the diamino cyclohexane family of platinum complexes, were soluble in dimethyl sulfoxide with the solvent substituting one chloride ion. These positively-charged complexes were tested against a human carcinoma cell line A431 and its cisplatin-resistant counterpart A431/Pt and were found to show: i) capability in bypassing cisplatin-resistance; ii) cytotoxicity comparable to that of oxaliplatin; iii) lower activity than cisplatin. In both cells lines, [PtCl(DACH)(DMSO)]+ was more cytotoxic than oxaliplatin. The best activity was shown by the platinum complexes with ligands which presented C2 symmetry.
Collapse
Affiliation(s)
- Vanda Cerè
- Department of Organic Chemistry "A. Mangini", University of Bologna, Viale Risorgimento, 4, 40136 Bologna, Italy
| | | | | | | | | | | |
Collapse
|
29
|
Giacomet V, Mora S, Martelli L, Merlo M, Sciannamblo M, Viganò A. A 12-Month Treatment With Tenofovir Does Not Impair Bone Mineral Accrual in HIV-Infected Children. J Acquir Immune Defic Syndr 2005; 40:448-50. [PMID: 16280700 DOI: 10.1097/01.qai.0000184860.62189.c8] [Citation(s) in RCA: 52] [Impact Index Per Article: 2.7] [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: 11/25/2022]
Abstract
BACKGROUND Short-term use of tenofovir (TDF) has been associated with bone mineral loss in adults and children. OBJECTIVE To assess whether the substitution of stavudine with TDF would result in decreased bone mineral content (BMC) and bone mineral density (BMD) accrual in HIV-infected children. METHODS The lumbar spine and whole-body BMC and BMD were measured by dual-energy x-ray absorptiometry in 16 HIV-infected children (age range: 6.4-17.9 years) on stable highly active antiretroviral therapy. Bone measurements were obtained 12 months before the switch, at baseline, and 12 months after switching to TDF. Expected changes in bone measurements were calculated from cross-sectional data obtained from 166 healthy children. RESULTS The BMC and BMD increments observed before switching therapy did not differ from expected increments. Similarly, the changes detected during treatment with TDF did not differ significantly from those calculated in healthy controls. CONCLUSIONS Substitution to a TDF-containing antiretroviral regimen does not seem to impair bone mineral accrual in children showing a good immunologic response to antiretroviral treatment.
Collapse
Affiliation(s)
- Vania Giacomet
- Department of Pediatrics, L. Sacco Hospital, University of Milan, Milan, Italy
| | | | | | | | | | | |
Collapse
|
30
|
Viganò A, Aldrovandi GM, Giacomet V, Merlo M, Martelli L, Beretta S, Luraschi P, Rombolà G, Mora S. Improvement in Dyslipidaemia after Switching Stavudine to Tenofovir and Replacing Protease Inhibitors with Efavirenz in HIV-Infected Children. Antivir Ther 2005. [DOI: 10.1177/135965350501000807] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [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
Objective To assess the impact on immunological, virological and metabolic parameters of replacing protease inhibitors (PIs) with efavirenz and replacing stavudine with tenofovir in HIV-infected children. Methods A 48-week prospective evaluation of 28 HIV-infected children, with stable undetectable HIV-1 loads, who were taking highly active antiretroviral therapy (HAART) containing lamivudine, stavudine and a PI. Individuals were randomized to switch PI to efavirenz and stavudine to tenofovir at baseline (Group 1) or at week 24 (Group 2). Patient assessment included: clinical evaluation, viral load, CD4+ T-cell count, fasting blood levels and urine samples. Results All individuals maintained HIV RNA <50 copies/ml and unchanged CD4+ T-cell count through week 48. In Group 1 individuals, a significant decrease in cholesterol ( P<0.05), cholesterol:high-density lipoprotein (HDL) ratio ( P<0.01) and triglycerides ( P<0.05) was observed 24 and 48 weeks after the switch of HAART. The percentage of Group 1 children with increased cholesterol and triglycerides markedly decreased over the study period (from 43% to 0% and from 36% to 7%, respectively). In Group 2 individuals, unchanged lipids in the 24 weeks prior to the switch of HAART and a significant improvement on cholesterol ( P<0.05), cholesterol:HDL ratio ( P<0.01) and triglycerides ( P<0.05) were observed 24 weeks after the switch of HAART. The percentage of Group 2 children with increased cholesterol and triglycerides markedly decreased 24 weeks after the switch of HAART (from 46% to 7% and from 54% to 0%, respectively). Proteinuria and glucosuria were not detected in any individual. The mean values of serum creatinine, serum phosphorus, serum bicarbonate, estimated glomerular filtration rate, urinary microalbumin/creati-nine, α-1-microglobulin/creatinine ratio and maximal tubular phosphate reabsorption remained unchanged in both groups. Conclusions In HIV-infected children, switching PI to efavirenz and stavudine to tenofovir is virologically and immunologically safe, is not associated with renal impairment and provides a significant improvement in lipid profile.
Collapse
Affiliation(s)
| | - Grace M Aldrovandi
- Infectious Disease, Childrens Hospital Los Angeles, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - Vania Giacomet
- Chair of Pediatrics, L Sacco Hospital, University of Milan, Italy
| | - Marzia Merlo
- Chair of Pediatrics, L Sacco Hospital, University of Milan, Italy
| | - Laura Martelli
- Chair of Pediatrics, L Sacco Hospital, University of Milan, Italy
| | - Silvia Beretta
- Chair of Pediatrics, L Sacco Hospital, University of Milan, Italy
| | - Paola Luraschi
- Laboratory of Clinical Chemistry, L. Sacco Hospital, Milan, Italy
| | | | - Stefano Mora
- Laboratory of Pediatric Endocrinology, IRCCS H S. Raffaele, Milan, Italy
| |
Collapse
|
31
|
Viganò A, Aldrovandi GM, Giacomet V, Merlo M, Martelli L, Beretta S, Luraschi P, Rombolà G, Mora S. Improvement in dyslipidaemia after switching stavudine to tenofovir and replacing protease inhibitors with efavirenz in HIV-infected children. Antivir Ther 2005; 10:917-24. [PMID: 16430197] [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: 05/06/2023]
Abstract
OBJECTIVE To assess the impact on immunological, virological and metabolic parameters of replacing protease inhibitors (PIs) with efavirenz and replacing stavudine with tenofovir in HIV-infected children. METHODS A 48-week prospective evaluation of 28 HIV-infected children, with stable undetectable HIV-1 loads, who were taking highly active antiretroviral therapy (HAART) containing lamivudine, stavudine and a PI. Individuals were randomized to switch PI to efavirenz and stavudine to tenofovir at baseline (Group 1) or at week 24 (Group 2). Patient assessment included: clinical evaluation, viral load, CD4+ T-cell count, fasting blood levels and urine samples. RESULTS All individuals maintained HIV RNA <50 copies/ml and unchanged CD4+ T-cell count through week 48. In Group 1 individuals, a significant decrease in cholesterol (P < 0.05), cholesterol:high-density lipoprotein (HDL) ratio (P < 0.01) and triglycerides (P < 0.05) was observed 24 and 48 weeks after the switch of HAART. The percentage of Group 1 children with increased cholesterol and triglycerides markedly decreased over the study period (from 43% to 0% and from 36% to 7%, respectively). In Group 2 individuals, unchanged lipids in the 24 weeks prior to the switch of HAART and a significant improvement on cholesterol (P < 0.05), cholesterol:HDL ratio (P < 0.01) and triglycerides (P < 0.05) were observed 24 weeks after the switch of HAART. The percentage of Group 2 children with increased cholesterol and triglycerides markedly decreased 24 weeks after the switch of HAART (from 46% to 7% and from 54% to 0%, respectively). Proteinuria and glucosuria were not detected in any individual. The mean values of serum creatinine, serum phosphorus, serum bicarbonate, estimated glomerular filtration rate, urinary microalbumin/creatinine, alpha-1-microglobulin/creatinine ratio and maximal tubular phosphate reabsorption remained unchanged in both groups. CONCLUSIONS In HIV-infected children, switching PI to efavirenz and stavudine to tenofovir is virologically and immunologically safe, is not associated with renal impairment and provides a significant improvement in lipid profile.
Collapse
|
32
|
Bassi CL, Martelli L, Cipolotti R, Scrideli CA, Defávery R, Tone LG. Lack of evidence for mutations or deletions in the CDKN2A/p16 and CDKN2B/p15 genes of Brazilian neuroblastoma patients. Braz J Med Biol Res 2004; 37:1683-7. [PMID: 15517085 DOI: 10.1590/s0100-879x2004001100014] [Citation(s) in RCA: 5] [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] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Neuroblastoma, the most common extracranial tumor in childhood, has a wide spectrum of clinical and biological features. The loss of heterozygosity within the 9p21 region has been reported as a prognostic factor. Two tumor suppressor genes located in this region, the CDKN2B/p15 and CDKN2A/p16 (cyclin-dependent kinase inhibitors 2B and 2A, respectively) genes, play a critical role in cell cycle progression and are considered to be targets for tumor inactivation. We analyzed CDKN2B/p15 and CDKN2A/p16 gene alterations in 11 patients, who ranged in age from 4 months to 13 years (male/female ratio was 1.2:1). The most frequent stage of the tumor was stage IV (50%), followed by stages II and III (20%) and stage I (10%). The samples were submitted to the multiplex PCR technique for homozygous deletion analysis and to single-strand conformation polymorphism and nucleotide sequencing for mutation analysis. All exons of both genes were analyzed, but no deletion was detected. One sample exhibited shift mobility specific for exon 2 in the CDKN2B/p15 gene, not confirmed by DNA sequencing. Homozygous deletions and mutations are not involved in the inactivation mechanism of the CDKN2B/p15 and CDKN2A/p16 genes in neuroblastoma; however, these two abnormalities do not exclude other inactivation pathways. Recent evidence has shown that the expression of these genes is altered in this disease. Therefore, other mechanisms of inactivation, such as methylation of promoter region and unproperly function of proteins, may be considered in order to estimate the real contribution of these genes to neuroblastoma genesis or disease progression.
Collapse
Affiliation(s)
- C L Bassi
- Departamento de Genética, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Brasil
| | | | | | | | | | | |
Collapse
|
33
|
Durante D, Casadio R, Martelli L, Tasco G, Portaccio M, De Luca P, Bencivenga U, Rossi S, Di Martino S, Grano V, Diano N, Mita D. Isothermal and non-isothermal bioreactors in the detoxification of waste waters polluted by aromatic compounds by means of immobilised laccase from Rhus vernicifera. ACTA ACUST UNITED AC 2004. [DOI: 10.1016/j.molcatb.2003.11.008] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
34
|
Abstract
The transmembrane mucin glycoprotein (MUC1) has an anti-adhesive role, and functions to maintain a non-receptive uterine state. A polymorphic variation of the MUC1 gene has been associated with female infertility due to suspected failure of embryo implantation, based on the significant greater size of the lower allele observed in infertile women. The aim of this study was to confirm this preliminary observation using long polymerase chain reaction (PCR), which has amplified the 60-bp polymorphic variable number of tandem repeat (VNTR) associated to the binding domain of the MUC1 glycoprotein. DNA samples were obtained from 20 women, 10 fertile and 10 infertile, and the VNTR region was amplified through a long PCR procedure. The VNTR size range from 1.6 to 2.9 kb (22-44 motifs). The average size for the lower allele was 1.69 kb for both groups, and for the upper allele was 2.35 and 2.49 kb (P > 0.05) for fertile and infertile groups respectively. The VNTR polymorphism of the MUC1 gene was not associated with female infertility, although its significance cannot be discarded. It is suggested that other regulatory molecules and signals may interact with the MUC1 gene variations, favouring endometrial receptivity and embryo attachment.
Collapse
Affiliation(s)
- L R Goulart
- Institute of Genetics and Biochemistry, Universidade Federal de Uberlandia, Uberlandia, MG-Brazil
| | | | | | | | | | | |
Collapse
|
35
|
Toniolo R, Di Narda F, Susmel S, Martelli M, Martelli L, Bontempelli G. Quenching of superoxide ions by curcumin. A mechanistic study in acetonitrile. Ann Chim 2002; 92:281-8. [PMID: 12025512] [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: 02/25/2023]
Abstract
The quenching of superoxide ions, O2.-, by curcumin has been studied by electrogenerating this anion radical from oxygen dissolved in acetonitrile solvent (that is, at best, a mimic of the lipofilic layer of biological membranes), containing known amounts of curcumin. Voltammetric tests, combined with coulometric and spectrophotometric measurements, pointed out that each mol of curcumin is able to react with six mols of such anion radical, through a process initiated by an acid-base step, which provides the perhydroxyl radical, HO2.; that disproportionates rapidly to the anionic form of hydrogen peroxide, HO2-, and oxygen, which is thus partially regenerated. At the same time, curcumin is converted to the corresponding three-charged anion. The strict resemblance existing between the mechanism of the rapid superoxide radical decay caused by curcumin and that involved in the presence of the superoxodismutase enzyme (SOD) is also underlined.
Collapse
Affiliation(s)
- Rosanna Toniolo
- Department of Chemical Sciences and Technology, University of Udine, via Cotonificio 108, 33100 Udine, Italy
| | | | | | | | | | | |
Collapse
|
36
|
Martelli L, Nassr A, Motta V, Baruffi R, Laureano L, Franco J. Cytogenetic study of couples and their children born after intracytoplasmic sperm injection (ICSI). Fertil Steril 2001. [DOI: 10.1016/s0015-0282(01)02755-8] [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: 11/29/2022]
|
37
|
Abstract
Spondylocarpotarsal synostosis syndrome (SSS) or congenital synspondylism is a recently delineated clinical entity. At least 15 patients have been reported. We present 3 new patients, 2 of whom were sibs born to first-cousin parents. All of our patients had multiple synostoses involving cervical, thoracic and/or lumbar vertebral bodies and carpal/tarsal bones, scoliosis/lordosis, and short stature. Sensorineural deafness was found in 2 of the 3 patients. Analysis of clinical manifestations suggests clinical variability and genetic heterogeneity in SSS. Of a total of 18 SSS patients, 10 were five pairs of sibs from five families, with first-cousin consanguinity of parents in 3, indicating that at least one type of SS is an autosomal-recessive disorder.
Collapse
Affiliation(s)
- K E Coêlho
- Departamento de Genetica, Faculdade de Medicina de Ribeirao Preto, Universidade de Sao Paulo, Brazil
| | | | | | | | | | | |
Collapse
|
38
|
Sabbatani S, Martelli L, Castelvetri C, Di Crescenzo E. [Pharmaco economics aspects of antibiotic therapy for AIDS patients in department of infectious disease]. Infez Med 1997; 5:257-64. [PMID: 12845315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 04/21/2023]
Abstract
The financial budget for public health care in Italy has been more and more restricted in the last few years, but, on the other hand, the care of AIDS patients is still very expensive and antibiotic therapy plays an important role in the management and cost of these patients. The antibiotic therapies and related costs have been evaluated in 99 patients affected by AIDS (59 pts), ARC (28 pts) or HIV serum positive (12 pts), all hospitalized or treated in Day Hospital for different bacterial infections in 1995 at the Department of Infectious Diseases, Ospedale Maggiore, Bologna, for a total of 7733 days of antibiotic therapy. The average cost for antibiotic therapy was about 400,000 Italian Lira, with no significant difference depending on the stage of HIV related disease. The crude cost for antibiotic treatment was not particularly high, but the high frequency of adverse events, registered in these patients, required additional medical support and/or a prolonged hospital stay, which increased substantially the total cost of management of bacterial infections.
Collapse
Affiliation(s)
- S Sabbatani
- Divisione Malattie Infettive, Ospedale Maggiore di Bologna
| | | | | | | |
Collapse
|
39
|
Ramos ES, Moreira-Filho CA, Vicente YA, Llorach-Velludo MA, Tucci S, Duarte MH, Araújo AG, Martelli L. SRY-negative true hermaphrodites and an XX male in two generations of the same family. Hum Genet 1996; 97:596-8. [PMID: 8655137 DOI: 10.1007/bf02281867] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.2] [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: 02/01/2023]
Abstract
Two 46,XX true hermaphrodites and one XX male without genital ambiguities are reported. They coexist in two generations of the same pedigree, with paternal transmission and in the absence of SRY (sex-determining region, Y chromosome). These familial cases provide evidence to support the hypothesis that these disorders are alternative manifestations of the same genetic defect, probably an autosomal dominant mutation (with incomplete penetrance) or an X-linked mutation (limited by the presence of the Y chromosome).
Collapse
Affiliation(s)
- E S Ramos
- Departamento de Genética, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Brazil
| | | | | | | | | | | | | | | |
Collapse
|
40
|
Artioli E, Avanzolini G, Martelli L, Ursino M. An expert system based on causal knowledge: validation on post-cardiosurgical patients. Int J Biomed Comput 1996; 41:19-37. [PMID: 8735771 DOI: 10.1016/0020-7101(95)01153-6] [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] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
A new expert system for the analysis of post-cardiosurgical patients in Intensive Care Units is described, and a preliminary validation performed. The inference engine employs a hybrid reasoning method which integrates quantitative and qualitative simulation techniques in an original manner. The long-term knowledge consists of a causal network which reproduces the main relationships between physiological quantities involved in the course after cardiac surgery. Emphasis has been given to respiratory and metabolic, as well as cardiovascular quantities both in the systemic and pulmonary circulations. Preliminary system validation has been performed on a set of 40 cardiosurgical patients, previously classified either at normal-risk (17 patients) or at high-risk (23 patients) by means of statistical classification techniques. In most cases, predictions of the expert system substantially agree with those provided by the more traditional statistical method. The system, however, is also able to furnish detailed explanations on the possible physiological causes responsible for the patient status. In particular, simulation results indicate that a reduction in the cardiac index (19 cases) and an increase in the oxygen utilization coefficient (19 cases) are the most critical alterations in the high-risk patients. The system imputes the reduced cardiac index to a rise in total systemic resistance (15 high-risk patients), a decrease in cardiac strength (2 high-risk patients) or an insufficient filling volume of the systemic circulation (4 high-risk patients). Furthermore, in 6 high-risk patients the depressed cardiac outflow occurs with a reduction in the arterial oxygen content, mainly imputable to an insufficiency of blood hemoglobin content. Finally, two examples of the complete expert system explanatory capabilities are shown with reference to a pair of high-risk patients and discussed.
Collapse
Affiliation(s)
- E Artioli
- Department of Electronics, Computer Science and Systems, University of Bologna, Italy
| | | | | | | |
Collapse
|
41
|
Chini G, Pierotti P, Sani L, Martelli L, Zecchi S, Rosso L. [Role of slime in the pathogenesis of pulmonary infections]. Minerva Anestesiol 1995; 61:77-81. [PMID: 7675265] [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: 01/26/2023]
Abstract
Microorganisms have proved to produce an amorphous substance that adheres to surfaces of several medical devices like intravenous catheters and endotracheal tubes. We investigated the presence of slime in endotracheal tubes in our Intensive Care Unit (ICU) in 12 patients. We found in this study no correlation between the strain of bacteria on the surface of endotracheal devices and those responsible for pneumonia.
Collapse
Affiliation(s)
- G Chini
- I.U.O. Anestesia e Rianimazione, USL 10/D-Policlinico di Careggi, Firenze
| | | | | | | | | | | |
Collapse
|
42
|
Corti G, Paradisi F, Giganti E, Buffini G, Tortoli E, Martelli L, Pecile P, Nicoletti P. Ciprofloxacin resistance in clinical isolates of Pseudomonas aeruginosa from Italian patients. Drugs 1995; 49 Suppl 2:175-6. [PMID: 8549293 DOI: 10.2165/00003495-199500492-00031] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- G Corti
- Infectious Disease Clinic, University of Florence, Italy
| | | | | | | | | | | | | | | |
Collapse
|
43
|
Marzio L, Grossi L, Martelli L, Falcucci M, Lapenna D. Migrating motor complex recorded spontaneously and induced by motilin and erythromycin in an ex vivo rabbit intestinal preparation. Peptides 1994; 15:1067-77. [PMID: 7991450 DOI: 10.1016/0196-9781(94)90072-8] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
We investigated basal motility and the motor effects of motilin, erythromycin, and prostigmine on segments of rabbit gastrointestinal tract removed from extrinsic neural and vascular pathway and immersed in an oxygenated organ bath. Motility was recorded by means of four strain gauges sutured on the serosal surface of the segment. During basal recording, clusters of duodenal contractions that propagated distally, resembling phase III activity of migrating motor complex, were seen. Motilin (10(-6) M) and erythromycin (10(-6) M) induced a propagated cluster of contractions similar to the phase III recorded during the basal period. Prostigmine (10(-6) M) induced a simultaneous increase in gastric and small intestinal motility. Atropine (10(-5) M) prevented the motor effect of motilin, erythromycin, and prostigmine. Thus, MMCs do not appear to require central input for initiation and propagation. Motilin and erythromycin stimulate MMCs through an enteric cholinergic mechanism; therefore, the previously reported smooth muscle receptors for both substances were not apparent in the ex vivo preparation.
Collapse
Affiliation(s)
- L Marzio
- Istituto di Fisiopatologia Medica, G.D'Annunzio University, Chieti, Italy
| | | | | | | | | |
Collapse
|
44
|
Lebo RV, Martelli L, Su Y, Li L, Lynch E, Mansfield E, Pua KH, Watson DF, Chueh J, Hurko O. Prenatal diagnosis of Charcot-Marie-Tooth disease type 1A by multicolor in situ hybridization. Am J Med Genet 1993; 47:441-50. [PMID: 8135298 DOI: 10.1002/ajmg.1320470334] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Genetic heterogeneity within the most common genetic neuropathy, Charcot-Marie-Tooth disease (CMT) results in about 70% slow nerve conduction CMT1 and 30% normal nerve conduction CMT2. Autosomal dominant CMT1A on chromosome 17p11.2 represents about 70% of CMT1 cases and about 50% of all CMT cases. Three different size CMT1A duplications with variable flanking breakpoints were characterized by multicolor in situ hybridization and confirmed by pulsed field gel electrophoresis and quantitative polymerase chain reaction (PCR) amplification. These different size duplications result in the same CMT1A phenotype confirming that trisomy of a normal gene region results in CMT1A. The smallest duplication does not include the 409 locus used previously to screen for CMT1A duplications. Direct analysis of interphase nuclei from fetuses and at-risk patients by multicolor in situ hybridization to a commonly duplicated CMT1A probe is informative more often than polymorphic PCR analysis, faster than pulsed field gel electrophoresis (PFGE), and faster, more informative, and more reliable than restriction enzyme analysis. CMT1B restriction enzyme analysis of CMT pedigrees without CMT1A is expected to diagnose another 8% of at-risk CMT1 patients (total: 78%).
Collapse
Affiliation(s)
- R V Lebo
- Department of Obstetrics, Gynecology, University of California, San Francisco 94143-0720
| | | | | | | | | | | | | | | | | | | |
Collapse
|
45
|
Chiabrando C, Rivoltella L, Martelli L, Valzacchi S, Fanelli R. Urinary excretion of thromboxane and prostacyclin metabolites during chronic low-dose aspirin: evidence for an extrarenal origin of urinary thromboxane B2 and 6-keto-prostaglandin F1 alpha in healthy subjects. Biochim Biophys Acta 1992; 1133:247-54. [PMID: 1737057 DOI: 10.1016/0167-4889(92)90044-c] [Citation(s) in RCA: 15] [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] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
In vivo biosynthesis of thromboxane and prostacyclin is currently evaluated by measuring urinary excretion of selected metabolites. Urinary thromboxane B2 (TXB2) and 6-keto-prostaglandin F1 alpha (6-keto-PGF1 alpha) (non-enzymatic hydrolysis products of thromboxane and prostacyclin) are thought to derive from renal biosynthesis of the parent compounds, while enzymatic metabolites such as 2,3-dinor-TXB2 and 2,3-dinor-6-keto-PGF1 alpha appear to be mainly derived from systemic (platelet) thromboxane and (vascular) prostacyclin, respectively. Using immunoaffinity extraction and high-resolution gas chromatography-negative ion chemical ionization mass spectrometry (HRGC-NICIMS), we measured the paired excretion of non-enzymatic and enzymatic metabolites of thromboxane and prostacyclin in healthy subjects before, during and after an eight-day schedule of oral low-dose aspirin (30 mg/day), a treatment known to inhibit platelet and perhaps vascular but not renal cyclooxygenase. Low-dose aspirin cumulatively reduced urinary excretion of TXB2 and 2,3-dinor-TXB2 (about 80% inhibition on day 8 of aspirin treatment, P less than 0.01), as well as 6-keto-PGF1 alpha and 2,3-dinor-6-keto-PGF1 alpha (about 45% inhibition on day 8 of aspirin treatment, P less than 0.01). Excretion of all metabolites recovered slowly after aspirin withdrawal. Urinary PGE2, taken as an index of renal cyclooxygenase activity, was not inhibited by aspirin. A highly significant correlation was found between paired excretion values of non-enzymatic vs. enzymatic metabolites of thromboxane and prostacyclin in all individuals studied (TXB2 vs. 2,3-dinor-TXB2 (r = 0.91 +/- 0.03); 6-keto-PGF1 alpha vs. 2,3-dinor-6-keto-PGF1 alpha (r = 0.92 +/- 0.06], irrespective of aspirin treatment. TXB2/2,3-dinor-TXB2 and 6-keto-PGF1 alpha/2,3-dinor-6-keto-PGF1 alpha mean ratios remained unchanged throughout the experiment. These data do not support the view that urinary TXB2 and 6-keto-PGF1 alpha derive mainly from renal biosynthesis in healthy subjects, but rather suggest that they may represent a fraction of systemic (platelet) thromboxane and (vascular) prostacyclin escaping metabolism. These data also suggest that chronic low-dose aspirin may partly inhibit vascular prostacyclin in addition to platelet thromboxane biosynthesis.
Collapse
Affiliation(s)
- C Chiabrando
- Istituto di Ricerche Farmacologiche Mario Negri, Milano, Italy
| | | | | | | | | |
Collapse
|
46
|
Fiessinger JN, Martelli L. [Echography and venous pathology]. Rev Prat 1990; 40:2775-8. [PMID: 2100056] [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: 12/30/2022]
Abstract
When performed by a well-trained operator, ultrasonic exploration of the deep veins has a more than 90% sensitivity and specificity in the diagnosis of deep vein thrombosis. Despite technical problems in the ileal and sural regions, it is the first examination to be carried out in patients with clinical signs of venous thrombosis. In distal thrombosis of the leg and calf ultrasonography might even be more sensitive than phlebography. In superficial phlebitis ultrasounds can be used to evaluate the extent of thrombosis. In varicose vein disease, they are also a crucial element in the choice of treatment.
Collapse
Affiliation(s)
- J N Fiessinger
- Service de pathologie vasculaire, hôpital Broussais, Paris
| | | |
Collapse
|
47
|
Long A, Vitoux JF, Martelli L, Fiessinger JN. [Thrombosis of the gastrocnemic veins. A clinical entity]. Presse Med 1990; 19:1081-3. [PMID: 2141409] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Among deep venous thromboses of the calf, isolated gastrocnemic vein thrombosis is a rare condition. Its main characteristics could be extracted from 5 cases. Following a positional or mechanical triggering factor, the diagnosis is suggested by pain localized to the calf. Ultrasonography shows the intraluminal thrombus better than phlebography, since the gastrocnemic veins, which bypass the larger deep veins, can be opacified only after a garrot is placed above the knee. The thrombus may extend to the popliteal vein, with a risk of pulmonary embolism and post-phlebitis disease. Treatment consists of anticoagulants and elastic bandage.
Collapse
Affiliation(s)
- A Long
- Centre Claude Bernard de recherche sur les maladies vasculaires périphériques, Hôpital Broussais, Paris
| | | | | | | |
Collapse
|
48
|
Orsi A, Bartoloni A, Martelli L, Colao MG. Evaluation of six different agglutination methods for rapid identification of Staphylococcus aureus. Eur J Clin Microbiol Infect Dis 1989; 8:655-6. [PMID: 2506030 DOI: 10.1007/bf01968152] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
|
49
|
Castelli MG, Chiabrando C, Fanelli R, Martelli L, Butti G, Gaetani P, Paoletti P. Prostaglandin and thromboxane synthesis by human intracranial tumors. Cancer Res 1989; 49:1505-8. [PMID: 2493982] [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: 01/01/2023]
Abstract
Prostaglandin (PG) and thromboxane (TX) production by homogenates of human intracranial tumors (33 gliomas, 32 meningiomas, six brain metastases) and "normal" brain (n = 26) from tumor-bearing patients was studied. PGF2 alpha, PGE2, PGD2, 6-keto-PGF1 alpha (the hydrolysis product of PGI2) and TXB2 (the hydrolysis product of TXA2) were determined by high-resolution gas chromatography-mass spectrometry after ex vivo metabolism of endogenous arachidonic acid. Prostanoid profiles (relative abundance of each metabolite) were different for gliomas and meningiomas, but similar for gliomas and their nontumoral counterpart, i.e., "normal" brain. Mean overall prostanoid production was significantly higher in gliomas (539 +/- 95) and meningiomas (523 +/- 69) than in "normal" brain (198 +/- 23). Prostanoid synthesis significantly increased with anaplastic grade (glioblastomas greater than anaplastic astrocytomas greater than slow-growing astrocytomas greater than "normal" brain), while profiles did not substantially change (TXB2 was the most and 6-keto-PGF1 alpha the least abundant product). Meningioma profiles showed no marked prevalence of any particular metabolite and no major differences between histological subgroups. All brain metastases from different carcinomas (n = 5) showed a prevalence of TXB2 and PGE2 and very low PGD2 synthesis.
Collapse
Affiliation(s)
- M G Castelli
- Istituto di Ricerche Farmacologiche Mario Negri, Milan, Italy
| | | | | | | | | | | | | |
Collapse
|
50
|
Paoletti P, Chiabrando C, Gaetani P, Castelli MG, Butti G, Martelli L, Rolli M. Prostaglandins in human brain tumors. J Neurosurg Sci 1989; 33:65-9. [PMID: 2674360] [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: 01/02/2023]
Abstract
It has been recently observed that arachidonic acid (AA) metabolites may modulate many of the mechanisms involved in tumor growth and metastasis. In order to clarify the role played in human brain tumors, authors have determined AA metabolic profiles in 63 surgical specimen of human intracranial tumors (mostly neuroepithelial tumors and meningiomas). The five metabolites via the cyclooxygenase pathway (PGD2, PGE2, TxB2, PGF2a, 6-Keto-PGF1a) were measured by high resolution gas chromatography-mass spectrometry after "ex vivo" metabolism of endogenous AA by tumor homogenates. The overall synthesis capacity of AA metabolites widely varied among different oncotypes, and, except in two cases of dermoid cysts, was higher than in normal brain tissue. AA metabolism seems more active in neuroepithelial tumors with the highest grade of anaplasia; some changes in the percentage of each metabolite is evident when anaplastic features changed. Thromboxane B2 was the most represented and 6-Keto-PGF1a the less abundant metabolite. Meningiomas and neuroepithelial tumors showed different relative proportion of AA metabolites which have in some cases reported to positively or negatively affect tumor growth. In histological subgroups of meningiomas AA metabolites synthesis capacity did not show any statistical difference. In the six cases of brain metastasis there is a wide range of overall synthesis capacity, with predominant synthesis of thromboxane B2 and prostaglandin E2, while the percentage of prostaglandin D2, reported as antimetastatic, is very low.
Collapse
Affiliation(s)
- P Paoletti
- Department of Surgery, Università di Pavia, Italy
| | | | | | | | | | | | | |
Collapse
|