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De Ruvo N, Fenocchi S, Veronesi L, Missori G, Ricciardolo AA, Rossi EG, Sorrentino L, Cautero N, Serra F, Gelmini R. Prognostic factors in gastric cancer patients: a 10-year mono-institutional experience. Front Surg 2024; 11:1321981. [PMID: 38362460 PMCID: PMC10867173 DOI: 10.3389/fsurg.2024.1321981] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2023] [Accepted: 01/11/2024] [Indexed: 02/17/2024] Open
Abstract
Introduction Gastric cancer (GC) is one of the main causes of death from cancer globally. Long-term survival, especially in Western countries, remains dismal, with no significant improvements in recent years. Therefore, precise identification of clinical and pathological risk factors is crucial for prognosis, as it allows a better selection of patients suitable for oncologically radical treatments and contributes to longer survivals. Methods We devised a retrospective observational longitudinal study over 10 years of experience with GC patients operated with curative intent. Results Several factors were thoroughly investigated in a multivariate analysis to look for significance as independent risk factors for disease-free survival. Our results showed that only BMI, pTNM, and lymph node ratio expressed hazard ratios with implications for survival in our series of patients. Discussion Although limited by the retrospective nature of the study, this is one of the few cancer reports from Northern Italy showing results over 10 years, which may in our view, have an impact on decision-making processes for multidisciplinary teams dedicated to the care of gastric cancer patients.
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Affiliation(s)
| | | | | | | | | | | | | | | | - F. Serra
- General, Oncological and Emergency Surgery Unit, Department of Surgery, AOU Policlinico di Modena, University of Modena and Reggio Emilia, Modena, Italy
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Ormazabal ME, Pavan E, Vaena E, Ferino D, Biasizzo J, Mucci JM, Serra F, Cifù A, Scarpa M, Rozenfeld PA, Dardis AE. Exploring the Pathophysiologic Cascade Leading to Osteoclastogenic Activation in Gaucher Disease Monocytes Generated via CRISPR/Cas9 Technology. Int J Mol Sci 2023; 24:11204. [PMID: 37446383 DOI: 10.3390/ijms241311204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Revised: 06/30/2023] [Accepted: 07/04/2023] [Indexed: 07/15/2023] Open
Abstract
Gaucher disease (GD) is caused by biallelic pathogenic variants in the acid β-glucosidase gene (GBA1), leading to a deficiency in the β-glucocerebrosidase (GCase) enzyme activity resulting in the intracellular accumulation of sphingolipids. Skeletal alterations are one of the most disabling features in GD patients. Although both defective bone formation and increased bone resorption due to osteoblast and osteoclast dysfunction contribute to GD bone pathology, the molecular bases are not fully understood, and bone disease is not completely resolved with currently available specific therapies. For this reason, using editing technology, our group has developed a reliable, isogenic, and easy-to-handle cellular model of GD monocytes (GBAKO-THP1) to facilitate GD pathophysiology studies and high-throughput drug screenings. In this work, we further characterized the model showing an increase in proinflammatory cytokines (Interleukin-1β and Tumor Necrosis Factor-α) release and activation of osteoclastogenesis. Furthermore, our data suggest that GD monocytes would display an increased osteoclastogenic potential, independent of their interaction with the GD microenvironment or other GD cells. Both proinflammatory cytokine production and osteoclastogenesis were restored at least, in part, by treating cells with the recombinant human GCase, a substrate synthase inhibitor, a pharmacological chaperone, and an anti-inflammatory compound. Besides confirming that this model would be suitable to perform high-throughput screening of therapeutic molecules that act via different mechanisms and on different phenotypic features, our data provided insights into the pathogenic cascade, leading to osteoclastogenesis exacerbation and its contribution to bone pathology in GD.
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Affiliation(s)
- Maximiliano Emanuel Ormazabal
- Regional Coordinator Centre for Rare Diseases, Academic Hospital of Udine, 33100 Udine, Italy
- Instituto de Estudios Inmunológicos y Fisiopatológicos (IIFP), UNLP, CONICET, Asociado CIC PBA, Facultad de Ciencias Exactas, Departamento de Ciencias Biológicas, La Plata 1900, Argentina
| | - Eleonora Pavan
- Regional Coordinator Centre for Rare Diseases, Academic Hospital of Udine, 33100 Udine, Italy
| | - Emilio Vaena
- Instituto de Estudios Inmunológicos y Fisiopatológicos (IIFP), UNLP, CONICET, Asociado CIC PBA, Facultad de Ciencias Exactas, Departamento de Ciencias Biológicas, La Plata 1900, Argentina
| | - Dania Ferino
- Institute of Clinical Pathology, Department of Laboratory Medicine, University Hospital of Udine, 33100 Udine, Italy
| | - Jessica Biasizzo
- Institute of Clinical Pathology, Department of Laboratory Medicine, University Hospital of Udine, 33100 Udine, Italy
| | - Juan Marcos Mucci
- Instituto de Estudios Inmunológicos y Fisiopatológicos (IIFP), UNLP, CONICET, Asociado CIC PBA, Facultad de Ciencias Exactas, Departamento de Ciencias Biológicas, La Plata 1900, Argentina
| | - Fabrizio Serra
- Regional Coordinator Centre for Rare Diseases, Academic Hospital of Udine, 33100 Udine, Italy
| | - Adriana Cifù
- Dipartimento di Area Medica, Università degli Studi di Udine, 33100 Udine, Italy
| | - Maurizio Scarpa
- Regional Coordinator Centre for Rare Diseases, Academic Hospital of Udine, 33100 Udine, Italy
| | - Paula Adriana Rozenfeld
- Instituto de Estudios Inmunológicos y Fisiopatológicos (IIFP), UNLP, CONICET, Asociado CIC PBA, Facultad de Ciencias Exactas, Departamento de Ciencias Biológicas, La Plata 1900, Argentina
| | - Andrea Elena Dardis
- Regional Coordinator Centre for Rare Diseases, Academic Hospital of Udine, 33100 Udine, Italy
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Casirati A, Da Prat V, Cereda E, Sebastiani F, Trestini I, Perrone L, Serra F, Cintoni M, Pedrazzoli P, Caccialanza R. Is it time to optimize immunonutrition in cancer patients according to muscle mass? Eur J Surg Oncol 2023; 49:1322-1323. [PMID: 37019805 DOI: 10.1016/j.ejso.2023.03.232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Accepted: 03/28/2023] [Indexed: 04/03/2023]
Affiliation(s)
- A Casirati
- Clinical Nutrition and Dietetics Unit, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - V Da Prat
- Clinical Nutrition and Dietetics Unit, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - E Cereda
- Clinical Nutrition and Dietetics Unit, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - F Sebastiani
- Endocrinology and Metabolic Diseases, Azienda USL IRCCS di Reggio Emilia, Reggio Emilia, Italy
| | - I Trestini
- Medical Oncology Unit, University of Verona Hospital Trust, Verona, Italy
| | - L Perrone
- Medical Oncology Unit, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - F Serra
- Medical Oncology Unit, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - M Cintoni
- Clinical Nutrition Unit, IRCCS Fondazione Policlinico Universitario Agostino Gemelli, Rome, Italy
| | - P Pedrazzoli
- Medical Oncology Unit, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy; Department of Internal Medicine and Medical Therapy, University of Pavia, Pavia, Italy
| | - R Caccialanza
- Clinical Nutrition and Dietetics Unit, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy.
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Lasagna A, Bergami F, Lilleri D, Percivalle E, Quaccini M, Serra F, Comolli G, Sarasini A, Sammartino JC, Ferrari A, Arena F, Secondino S, Cicognini D, Schiavo R, Lo Cascio G, Cavanna L, Baldanti F, Pedrazzoli P, Cassaniti I. Six-month humoral and cellular immune response to the third dose of BNT162b2 anti-SARS-CoV-2 vaccine in the patients with solid tumors: a longitudinal cohort study with a focus on the variants of concern. ESMO Open 2022; 7:100574. [PMID: 36029652 PMCID: PMC9353611 DOI: 10.1016/j.esmoop.2022.100574] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 07/18/2022] [Accepted: 08/02/2022] [Indexed: 01/09/2023] Open
Abstract
Background The role and the durability of the immunogenicity of the third dose of vaccine against COVID-19 variants of concern in cancer patients have to be elucidated. Patients and methods We have prospectively evaluated the immunogenicity of the third dose of the SARS-CoV-2 BNT162b2 messenger RNA vaccine in triggering both humoral and cell-mediated immune response in patients with solid tumors undergoing active treatment 6 months after the booster. Neutralizing antibody (NT Ab) titers and total anti-spike immunoglobulin G concentrations were measured in serum. Heparinized whole blood samples were used for the SARS-CoV-2 interferon-γ release assay (IGRA). Results Six months after the third dose only two patients (2.4%) showed negative spike-specific immunoglobulin G antibody levels (<33.8 BAU/ml). The median level of SARS-CoV-2 NT Abs decreased and only 39/83 (47%) subjects showed maximum levels of NT Abs. T-cellular positive response was observed in 38/61 (62.3%) patients; the highest median level of response was observed 21 days after the third dose (354 mIU/ml, interquartile range 83.3-846.3 mIU/ml). The lowest median level of NT Ab response was observed against the Omicron variant (1 : 10, interquartile range 1 : 10-1 : 40) with a significant reduced rate of responder subjects with respect to the wild-type strain (77.5% versus 95%; P = 0.0022) and Delta variant (77.5% versus 93.7%; P = 0.0053). During the follow-up period, seven patients (8%) had a confirmed post-vaccination infection, but none of them required hospitalization or oxygen therapy. Conclusions Our work highlights a significant humoral and cellular immune response among patients with solid tumors 6 months after the third BNT162b2 vaccine dose, although a reduction in neutralizing activity against Omicron was observed. Only two patients (2.4%) showed negative spike-specific IgG antibody levels (<33.8 BAU/ml) Only 39/83 (47%) subjects showed maximum level of neutralizing antibodies (NT Abs). T-cellular positive response was observed in 38/61 (62.3%) analyzed patients. The lowest median level of NT Ab response was observed against the Omicron variant. Seven patients (8%) had a post-vaccination infection; none of them required hospitalization or oxygen therapy.
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Affiliation(s)
- A Lasagna
- Medical Oncology Unit, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy.
| | - F Bergami
- Molecular Virology Unit, Department of Microbiology and Virology, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - D Lilleri
- Molecular Virology Unit, Department of Microbiology and Virology, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - E Percivalle
- Molecular Virology Unit, Department of Microbiology and Virology, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - M Quaccini
- Medical Oncology Unit, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - F Serra
- Medical Oncology Unit, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - G Comolli
- Molecular Virology Unit, Department of Microbiology and Virology, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - A Sarasini
- Molecular Virology Unit, Department of Microbiology and Virology, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - J C Sammartino
- Molecular Virology Unit, Department of Microbiology and Virology, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - A Ferrari
- Molecular Virology Unit, Department of Microbiology and Virology, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - F Arena
- Molecular Virology Unit, Department of Microbiology and Virology, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - S Secondino
- Medical Oncology Unit, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - D Cicognini
- Medical Oncology Unit, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - R Schiavo
- Microbiology Unit, Hospital Guglielmo da Saliceto, Piacenza, Italy
| | - G Lo Cascio
- Microbiology Unit, Hospital Guglielmo da Saliceto, Piacenza, Italy
| | - L Cavanna
- Oncology Unit, Hospital Guglielmo da Saliceto, Piacenza, Italy
| | - F Baldanti
- Molecular Virology Unit, Department of Microbiology and Virology, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy; Departments of Clinical, Surgical, Diagnostic and Pediatric Sciences, Pavia, Italy
| | - P Pedrazzoli
- Medical Oncology Unit, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy; Internal Medicine and Medical Therapy, University of Pavia, Pavia, Italy
| | - I Cassaniti
- Molecular Virology Unit, Department of Microbiology and Virology, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
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Sorrentino L, De Ruvo N, Serra F, Salati M, Ricciardolo AA, Bonetti LR, Gelmini R. Role of poorly differentiated cluster in gastric cancer: is it a new prognosis factor? Scand J Gastroenterol 2022; 57:44-49. [PMID: 34524049 DOI: 10.1080/00365521.2021.1974932] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
BACKGROUND Poorly differentiated Clusters (PDCs) of tumor cells composed of more than five elements have been recently described in gastrointestinal cancers and correlate with a worse prognosis. Our study aims to investigate PDC occurrence in a series of patients with gastric cancer and correlate it with lymph node status and clinical outcome. MATERIAL AND METHODS 50 patients were included in the study; PDCs count was graduated as G1, G2, and G3 according to Ueno classification (PDCs count at 20× <5, 5-9 and ≥10 respectively). We collected several clinicopathologic variables such as tumor location, pTNM stage, vascular or perineural invasion, and lymph-node ratio for each case. RESULTS The presence of PDCs was related to vascular invasion (p < .013) and recurrence event (p < .027). When the population was categorized according to the number of PDCs, a significant correlation was found with the presence of lymph node metastasis (p < .000), the Lymph Node Ratio (p < .002), WHO stage at the diagnosis (p < .000) and vascular invasion (p < .001). At the univariate and multivariate analysis, PDCs were found as an independent risk factor for recurrence (HR 1.94; CI 95% 1.209-3.121; p < .006 and HR 0.401; CI 95% 0.187-0.862; p < .017 respectively). The Kaplan-Meier curves for OS and DFS showed a significant association between PDCs and shorter time to recurrence or survival. CONCLUSION PDC is a strong prognostic factor in gastric cancer, easily detectable, and feasible. As far as we know, this is the first report in Literature of a strong correlation between PDC and survival in patients with operated gastric cancer.
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Affiliation(s)
- L Sorrentino
- Department of General Surgery - Unit of General, Emergency and Oncological Surgery, AOU of Modena University of Modena and Reggio Emilia, Modena, Italy
| | - N De Ruvo
- Department of General Surgery - Unit of General, Emergency and Oncological Surgery, AOU of Modena University of Modena and Reggio Emilia, Modena, Italy
| | - F Serra
- Department of General Surgery - Unit of General, Emergency and Oncological Surgery, AOU of Modena University of Modena and Reggio Emilia, Modena, Italy
| | - M Salati
- Department of Oncology and Hematology - Oncological Unit, AOU of Modena University of Modena and Reggio Emilia, Modena, Italy
| | - A A Ricciardolo
- Department of General Surgery - Unit of General, Emergency and Oncological Surgery, AOU of Modena University of Modena and Reggio Emilia, Modena, Italy
| | - L R Bonetti
- Department of Laboratory Medicine and Pathological Anatomy - Unit of Pathological Anatomy, AOU of Modena University of Modena and Reggio Emilia, Modena, Italy
| | - R Gelmini
- Department of General Surgery - Unit of General, Emergency and Oncological Surgery, AOU of Modena University of Modena and Reggio Emilia, Modena, Italy
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6
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Ricciardolo AA, De Ruvo N, Serra F, Prampolini F, Solaini L, Battisti S, Missori G, Fenocchi S, Rossi EG, Sorrentino L, Salati M, Spallanzani A, Cautero N, Pecchi A, Ercolani G, Gelmini R. Strong impact of sarcopenia as a risk factor of survival in resected gastric cancer patients: first Italian report of a Bicentric study. Updates Surg 2021; 74:283-293. [PMID: 34699033 DOI: 10.1007/s13304-021-01175-4] [Citation(s) in RCA: 1] [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] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Accepted: 09/20/2021] [Indexed: 12/15/2022]
Abstract
Gastric cancer (GC) accounts for 4% of all cancers in Europe. Sarcopenia is a complex syndrome characterized by a loss of muscle mass and function associated with age, often present in neoplastic patients. Recently, several studies have shown a significant association between sarcopenia and poor prognosis in various pathological conditions. The current observational retrospective study investigates the association between sarcopenia and overall survival (OS) and recurrence-free survival (RFS) in patients with GC undergoing up-front surgery with curative intent. Resected GC patients' clinical records and CT images were retrospectively assessed. The preoperative CT calculation of the skeletal muscle index (SMI) at L3 level allowed us to categorize patients as sarcopenic or not. Kaplan-Meyer and univariate and multivariate Cox regression analyses were performed to determine the difference in survival and presence of independent prognostic factors. Fifty-five patients, 28 male and 27 female, out of 298 studied for gastric cancer were enrolled in the current study from two cancer referral centers in Italy. The preoperative CT calculation of the SMI at L3 level allowed us to identify 39 patients with and 16 without sarcopenia. A statistically significant difference between the sarcopenic and non-sarcopenic groups was observed in both OS and RFS (p < 0.023; p < 0.006). Moreover, sarcopenia was strongly correlated to a higher risk of recurrence in univariate and multivariate analysis (p < 0.02). Sarcopenia can be considered a critical risk factor for survival in patients with resectable GC treated with up-front surgery. Identifying sarcopenic patients at the time of diagnosis would direct selection of patients who could benefit from early nutritional and/or physical treatments able to increase their muscle mass and possibly improve the prognosis. More extensive multicenter studies are needed to address this issue.
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Affiliation(s)
- A A Ricciardolo
- Department of General and Specialistic Surgery, Unit of General, Emergency and Oncological Surgery, Policlinico, AOU of Modena University of Modena and Reggio Emilia, Via del Pozzo 71, 41125, Modena, Italy
| | - N De Ruvo
- Department of General and Specialistic Surgery, Unit of General, Emergency and Oncological Surgery, Policlinico, AOU of Modena University of Modena and Reggio Emilia, Via del Pozzo 71, 41125, Modena, Italy.
| | - F Serra
- Department of General and Specialistic Surgery, Unit of General, Emergency and Oncological Surgery, Policlinico, AOU of Modena University of Modena and Reggio Emilia, Via del Pozzo 71, 41125, Modena, Italy
| | - F Prampolini
- Department of Radiology, AOU of Modena, University of Modena and Reggio Emilia, via del Pozzo 71, 41125 Modena Italy, Modena, Italy
| | - L Solaini
- Department Of Medical and Surgical Sciences, University of Bologna, Morgagni-Pierantoni Hospital, Forli, Italy
| | - S Battisti
- Istituto Scientifico Romagnolo Per Lo Studio E La Cura Dei Tumori (IRST) IRCCS, Meldola, Italy
| | - G Missori
- Department of General and Specialistic Surgery, Unit of General, Emergency and Oncological Surgery, Policlinico, AOU of Modena University of Modena and Reggio Emilia, Via del Pozzo 71, 41125, Modena, Italy
| | - S Fenocchi
- Department of General and Specialistic Surgery, Unit of General, Emergency and Oncological Surgery, Policlinico, AOU of Modena University of Modena and Reggio Emilia, Via del Pozzo 71, 41125, Modena, Italy
| | - E G Rossi
- Department of General and Specialistic Surgery, Unit of General, Emergency and Oncological Surgery, Policlinico, AOU of Modena University of Modena and Reggio Emilia, Via del Pozzo 71, 41125, Modena, Italy
| | - L Sorrentino
- Department of General and Specialistic Surgery, Unit of General, Emergency and Oncological Surgery, Policlinico, AOU of Modena University of Modena and Reggio Emilia, Via del Pozzo 71, 41125, Modena, Italy
| | - M Salati
- Department of Oncology, AOU of Modena, University of Modena and Reggio Emilia, via del Pozzo 71, 41125 Modena Italy, Modena, Italy
| | - A Spallanzani
- Department of Oncology, AOU of Modena, University of Modena and Reggio Emilia, via del Pozzo 71, 41125 Modena Italy, Modena, Italy
| | - N Cautero
- Department of General and Specialistic Surgery, Unit of General, Emergency and Oncological Surgery, Policlinico, AOU of Modena University of Modena and Reggio Emilia, Via del Pozzo 71, 41125, Modena, Italy
| | - A Pecchi
- Department of Radiology, AOU of Modena, University of Modena and Reggio Emilia, via del Pozzo 71, 41125 Modena Italy, Modena, Italy
| | - G Ercolani
- Department Of Medical and Surgical Sciences, University of Bologna, Morgagni-Pierantoni Hospital, Forli, Italy
| | - R Gelmini
- Department of General and Specialistic Surgery, Unit of General, Emergency and Oncological Surgery, Policlinico, AOU of Modena University of Modena and Reggio Emilia, Via del Pozzo 71, 41125, Modena, Italy
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7
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Cioffi B, Ianiro G, Iaccarino D, D'Apice F, Ferraro A, Race M, Spasiano D, Esposito E, Monini M, Serra F, Cozza D, Di Nocera F, De Maio L, Amoroso MG, De Carlo E, Fusco G. A potential risk assessment tool to monitor pathogens circulation in coastal waters. Environ Res 2021; 200:111748. [PMID: 34303676 DOI: 10.1016/j.envres.2021.111748] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Revised: 07/16/2021] [Accepted: 07/16/2021] [Indexed: 06/13/2023]
Abstract
The present study reports data on a 20 months campaign monitoring enteric viruses (hepatitis A, norovirus, rotavirus, astrovirus, sapovirus, and aichivirus) and bacteria (Salmonella spp.) in seawater. The aim of this work was to assess the potential correlation among the presence of viruses/bacteria and different environmental factors like seasonality, water discharge sources (treated and untreated wastewater, mixed waters and raw water) as well as influence of the Italian lockdown measure against COVID-19 pandemic. Results showed different prevalence of the investigated viruses with values equal to 16 % for norovirus GI, 15.1 % for norovirus GII, followed by 13.8 % for astrovirus, and 13.3 % for sapovirus. Rotavirus was detected in the 8.4 % of samples and aichivirus was detected with the lowest prevalence of 3.5 %. Hepatitis A virus was never identified in the monitoring campaign. Salmonella spp. was detected with a prevalence of 36.6 %. Statistical analysis displayed a high correlation for the two noroviruses simultaneous detection (NGI and NGII) while a lower correlation was found for co-presence of noroviruses with astrovirus, sapovirus or Salmonella spp. A significant decrease of enteric pathogens in seawater was observed during the restrictions period. Results on seasonality highlighted a higher viral prevalence correlated to the wet season for all the pathogens but rotavirus and aichivirus, which instead showed an opposite trend and a higher incidence in the dry season. With respect to discharge typology, some viruses displayed a higher prevalence in treated waters (astrovirus, rotavirus, sapovirus and aichivirus) while the other investigated pathogens (noroviruses and Salmonella spp.) showed a higher prevalence in mixed waters. The main observations of this work were used to define a potential monitoring strategy that could be useful for sanitary Authorities to implement surveillance plans aimed at preventing possible sanitary outbreaks and/or environmental quality deterioration.
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Affiliation(s)
- B Cioffi
- Department of Animal Health, Istituto Zooprofilattico Sperimentale Del Mezzogiorno, Portici, NA, Italy
| | - G Ianiro
- Food Safety, Nutrition and Veterinary Public Health Department, Istituto Superiore di Sanità, Rome, Italy
| | - D Iaccarino
- Department of Animal Health, Istituto Zooprofilattico Sperimentale Del Mezzogiorno, Portici, NA, Italy
| | - F D'Apice
- Sea Unit, ARPA Campania, Naples, Italy
| | - A Ferraro
- Department of Civil, Environmental, Land, Building Engineering and Chemistry, Polytechnic University of Bari, Via E. Orabona 4, Bari, 70125, Italy.
| | - M Race
- Department of Civil and Mechanical Engineering, University of Cassino and Southern Lazio, Via di Biasio 43, Cassino, 03043, Italy
| | - D Spasiano
- Department of Civil, Environmental, Land, Building Engineering and Chemistry, Polytechnic University of Bari, Via E. Orabona 4, Bari, 70125, Italy
| | - E Esposito
- Veterinary Medicine and Animal Production Department, Università Degli Studi di Napoli Federico II, Naples, Italy
| | - M Monini
- Food Safety, Nutrition and Veterinary Public Health Department, Istituto Superiore di Sanità, Rome, Italy
| | - F Serra
- Department of Animal Health, Istituto Zooprofilattico Sperimentale Del Mezzogiorno, Portici, NA, Italy
| | - D Cozza
- Department of Food Microbiology, Istituto Zooprofilattico Sperimentale Del Mezzogiorno, Portici, NA, Italy
| | - F Di Nocera
- Department of Animal Health, Istituto Zooprofilattico Sperimentale Del Mezzogiorno, Portici, NA, Italy
| | - L De Maio
- Sea Unit, ARPA Campania, Naples, Italy
| | - M G Amoroso
- Department of Animal Health, Istituto Zooprofilattico Sperimentale Del Mezzogiorno, Portici, NA, Italy.
| | - E De Carlo
- Istituto Zooprofilattico Sperimentale Del Mezzogiorno, Portici, NA, Italy
| | - G Fusco
- Department of Animal Health, Istituto Zooprofilattico Sperimentale Del Mezzogiorno, Portici, NA, Italy
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8
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Serra F, Bottini S, Pratella D, Stathopoulou MG, Sebille W, El-Hami L, Repetto E, Mauduit C, Benahmed M, Grandjean V, Trabucchi M. Systemic CLIP-seq analysis and game theory approach to model microRNA mode of binding. Nucleic Acids Res 2021; 49:e66. [PMID: 33823551 PMCID: PMC8216473 DOI: 10.1093/nar/gkab198] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Revised: 02/19/2021] [Accepted: 03/10/2021] [Indexed: 12/18/2022] Open
Abstract
microRNAs (miRNAs) associate with Ago proteins to post-transcriptionally silence gene expression by targeting mRNAs. To characterize the modes of miRNA-binding, we developed a novel computational framework, called optiCLIP, which considers the reproducibility of the identified peaks among replicates based on the peak overlap. We identified 98 999 binding sites for mouse and human miRNAs, from eleven Ago2 CLIP-seq datasets. Clustering the binding preferences, we found heterogeneity of the mode of binding for different miRNAs. Finally, we set up a quantitative model, named miRgame, based on an adaptation of the game theory. We have developed a new algorithm to translate the miRgame into a score that corresponds to a miRNA degree of occupancy for each Ago2 peak. The degree of occupancy summarizes the number of miRNA-binding sites and miRNAs targeting each binding site, and binding energy of each miRNA::RNA heteroduplex in each peak. Ago peaks were stratified accordingly to the degree of occupancy. Target repression correlates with higher score of degree of occupancy and number of miRNA-binding sites within each Ago peak. We validated the biological performance of our new method on miR-155-5p. In conclusion, our data demonstrate that miRNA-binding sites within each Ago2 CLIP-seq peak synergistically interplay to enhance target repression.
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Affiliation(s)
- Fabrizio Serra
- Inserm U1065, C3M, Team Control of Gene Expression (10), Nice, France.,Université Côte d'Azur, Inserm, C3M, Nice, France
| | - Silvia Bottini
- Inserm U1065, C3M, Team Control of Gene Expression (10), Nice, France.,Université Côte d'Azur, Inserm, C3M, Nice, France
| | - David Pratella
- Inserm U1065, C3M, Team Control of Gene Expression (10), Nice, France.,Université Côte d'Azur, Inserm, C3M, Nice, France
| | - Maria G Stathopoulou
- Inserm U1065, C3M, Team Control of Gene Expression (10), Nice, France.,Université Côte d'Azur, Inserm, C3M, Nice, France
| | - Wanda Sebille
- Inserm U1065, C3M, Team Control of Gene Expression (10), Nice, France.,Université Côte d'Azur, Inserm, C3M, Nice, France
| | - Loubna El-Hami
- Inserm U1065, C3M, Team Control of Gene Expression (10), Nice, France.,Université Côte d'Azur, Inserm, C3M, Nice, France
| | - Emanuela Repetto
- Inserm U1065, C3M, Team Control of Gene Expression (10), Nice, France.,Université Côte d'Azur, Inserm, C3M, Nice, France
| | - Claire Mauduit
- Inserm U1065, C3M, Team Control of Gene Expression (10), Nice, France.,Université Côte d'Azur, Inserm, C3M, Nice, France
| | - Mohamed Benahmed
- Inserm U1065, C3M, Team Control of Gene Expression (10), Nice, France.,Université Côte d'Azur, Inserm, C3M, Nice, France
| | - Valerie Grandjean
- Inserm U1065, C3M, Team Control of Gene Expression (10), Nice, France.,Université Côte d'Azur, Inserm, C3M, Nice, France
| | - Michele Trabucchi
- Inserm U1065, C3M, Team Control of Gene Expression (10), Nice, France.,Université Côte d'Azur, Inserm, C3M, Nice, France
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9
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Serra F, Barruscotti S, Dominioni T, Zuccarini A, Pedrazzoli P, Chiellino S. Treatment Following Progression in Metastatic Melanoma: the State of the Art from Scientific Literature to Clinical Need. Curr Oncol Rep 2021; 23:84. [PMID: 34009481 DOI: 10.1007/s11912-021-01065-3] [Citation(s) in RCA: 1] [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] [Subscribe] [Scholar Register] [Accepted: 03/30/2021] [Indexed: 12/28/2022]
Abstract
INTRODUCTION In the last few years, the advent of targeted therapy and immunotherapy has improved the management and the prognosis of metastatic melanoma, but the spread of resistance mechanisms can lead to disease progression. The clinical management in this setting can be challenging because the oncologist has to decide what is the best treatment strategy among therapy beyond progression (TBP), therapy change, and the rechallenge approach. This review of the relevant scientific literature is intended to clarify which patients with progressing metastatic melanoma will benefit from continuation of ongoing therapy and which ones will not. The data are based on a total of about 4300 patients coming from the main retrospective studies in the chosen field. The article body is divided into four sections which analyze respectively the targeted therapy beyond progression, the immunotherapy beyond progression, the possible treatment sequences, and finally the rechallenge strategy. RECENT FINDINGS Despite the possible approaches of TBP or rechallenge, the patient may not have an optimal response and may need new therapy, which is currently missing. To broaden the pharmacological offer in the fight against melanoma, cancer research is studying new disease targets, like the NRAS, PI3K, and cKIT pathways or combination treatment of targeted therapy plus immunotherapy. Despite the limitations of this work, mainly due to the limited number of studies, their retrospective nature and the lack of comparative studies, the analysis performed allows us to draw some important conclusions: therapy beyond progression, both targeted therapy and immunotherapy, represents a valid treatment option with positive effects on disease control and survival outcomes for patients with low clinical risk, expressed as low disease burden, normal LDH levels, and good performance status; moreover, the prognosis and quality of life of these patients improve when TBP is associated with locoregional treatments. In patients with progressive metastatic melanoma and high clinical risk (high disease burden, high LDH levels, and poor performance status), it is recommended to change therapy, without ever forgetting the possibility of enrolling the patient in a clinical trial. Finally, an efficacious treatment alternative is the rechallenge strategy; this approach consists in a re-treatment with the same drug after a variable interval of discontinuation. Preliminary studies seem to have demonstrated that patients retreated with targeted therapy achieved a greater benefit if they had a low clinical risk and if the drug doublet (BRAF + MEK inhibitors) was used. On the side of immunotherapy, the rechallenge strategy produced a major benefit in patients who prior experienced a severe toxic episode.
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Affiliation(s)
- F Serra
- Medical Oncology Unit, IRCCS Policlinico San Matteo, Pavia, Italy
| | - S Barruscotti
- Dermatology Unit, IRCCS Policlinico San Matteo, Pavia, Italy
| | - T Dominioni
- General Surgery Unit, IRCCS Policlinico San Matteo, Pavia, Italy
| | - A Zuccarini
- Medical Oncology Unit, IRCCS Policlinico San Matteo, Pavia, Italy
| | - P Pedrazzoli
- Medical Oncology Unit, IRCCS Policlinico San Matteo, Pavia, Italy
| | - S Chiellino
- Medical Oncology Unit, IRCCS Policlinico San Matteo, Pavia, Italy.
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10
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Raad G, Serra F, Martin L, Derieppe MA, Gilleron J, Costa VL, Pisani DF, Amri EZ, Trabucchi M, Grandjean V. Paternal multigenerational exposure to an obesogenic diet drives epigenetic predisposition to metabolic diseases in mice. eLife 2021; 10:61736. [PMID: 33783350 PMCID: PMC8051948 DOI: 10.7554/elife.61736] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Accepted: 03/28/2021] [Indexed: 12/25/2022] Open
Abstract
Obesity is a growing societal scourge. Recent studies have uncovered that paternal excessive weight induced by an unbalanced diet affects the metabolic health of offspring. These reports mainly employed single-generation male exposure. However, the consequences of multigenerational unbalanced diet feeding on the metabolic health of progeny remain largely unknown. Here, we show that maintaining paternal Western diet feeding for five consecutive generations in mice induces an enhancement in fat mass and related metabolic diseases over generations. Strikingly, chow-diet-fed progenies from these multigenerational Western-diet-fed males develop a 'healthy' overweight phenotype characterized by normal glucose metabolism and without fatty liver that persists for four subsequent generations. Mechanistically, sperm RNA microinjection experiments into zygotes suggest that sperm RNAs are sufficient for establishment but not for long-term maintenance of epigenetic inheritance of metabolic pathologies. Progressive and permanent metabolic deregulation induced by successive paternal Western-diet-fed generations may contribute to the worldwide epidemic of metabolic diseases.
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Affiliation(s)
- Georges Raad
- Université Côte d'Azur, Inserm, C3M, TeamControl of Gene Expression (10), Nice, France.,Université Côte d'Azur, CNRS, Inserm, iBV, Nice, France
| | - Fabrizio Serra
- Université Côte d'Azur, Inserm, C3M, TeamControl of Gene Expression (10), Nice, France
| | - Luc Martin
- Université Côte d'Azur, CNRS, Inserm, iBV, Nice, France
| | | | - Jérôme Gilleron
- Université Côte d'Azur, Inserm, C3M, Team Cellular and Molecular Pathophysiology of Obesity and Diabetes (7), Nice, France
| | - Vera L Costa
- Université Côte d'Azur, Inserm, C3M, TeamControl of Gene Expression (10), Nice, France
| | | | | | - Michele Trabucchi
- Université Côte d'Azur, Inserm, C3M, TeamControl of Gene Expression (10), Nice, France
| | - Valerie Grandjean
- Université Côte d'Azur, Inserm, C3M, TeamControl of Gene Expression (10), Nice, France
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11
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Capolongo S, Rebecchi A, Napier D, Ricciardi G, Signorelli C, Serra F, Dotta F, Pella R, Lenzi A. New competences to manage Urban Health: Health City Manager core curriculum. Eur J Public Health 2020. [DOI: 10.1093/eurpub/ckaa165.449] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Health as a common good is a prior essential objective to be pursued by an alliance including citizens and local administrations. Role of cities in health promotion is emphasized by urbanization, entailing 70% of the global population living in urban areas. Cities are therefore perfect laboratories within which to act: studying and monitoring dimensions that determine the level of quality of life in cities, improving their sustainability and capacity for growth, is fundamental for a new governance model able of managing this complexity. Under the premises, the Health City Manager (HCM) has been launched, a professional gaining skills in PH management, sociology of communities, urban design and control in reducing health inequalities. A course lasting 80 hours gives then the opportunity to put into practice, at municipal level, knowledge, competences and abilities achieved. In the background, both the former EU Commissioner for Health and the Committee of the Regions warmly supported the establishment of HCMs, who would coordinate a process ensuring alignment of policies on a macro and micro scale. During G7 in 2017, Ministry for Health and Presidency of Italian Municipalities signed the Urban Health Rome Declaration, underlining the need for a stronger synergy facilitated by HCMs. In 2019, Ministry of Youth and Sport approved and financed the project. On the basis of a core curriculum, validated by a group of experts, the course is starting in 2020 for the first 120 HCMs. Innovation lies in the holistic approach, a multidisciplinary project managing method overcoming silos logic. Customization of public policies and participatory process make the figure ideal to be applied in all countries. Sustainability is ensured by a relatively high return on investment. Main impact relates to improvement of the quality of life through a full involvement and accountability of local administrations; contrast of climate change identifying strategies of urban resilience.
Key messages
Improvement of the quality of life through a full involvement and accountability of local administrations. Contrast of climate change identifying strategies of urban resilience.
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Affiliation(s)
- S Capolongo
- Department of Architecture, Built environment and Construction engineering (ABC) - Politecnico di Milano, Milan, Italy
- EUPHA -URB
| | - A Rebecchi
- Department of Architecture, Built environment and Construction engineering (ABC) - Politecnico di Milano, Milan, Italy
- EUPHA -URB
| | - D Napier
- University College of London, London, UK
| | - G Ricciardi
- University, Rome, Italy
- WFPHA, Geneva, Switzerland
| | - C Signorelli
- University Vita-Salute, Milan, Italy
- Italian Society of Hygiene, Preventive Medicine and Public Health (SItI), Rome, Italy
| | - F Serra
- Health City Institute, Rome, Italy
| | - F Dotta
- Health City Institute, Rome, Italy
- University of Siena, Siena, Italy
| | - R Pella
- Health City Institute, Rome, Italy
- Chamber of Deputies, Rome, Italy
- National Association of Italian Municipalities, Rome, Italy
| | - A Lenzi
- Health City Institute, Rome, Italy
- University La Sapienza, Rome, Italy
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12
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Serra F, Lenzi A, Pella R, Spinato C, Fatati G, Carruba M, Caretto A, Sbraccia P, Busetto L, Zani I. Italy on gaining official parliamentary recognition that obesity is a chronic disease. Eur J Public Health 2020. [DOI: 10.1093/eurpub/ckaa165.322] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Obesity places a significant burden on people affected, increasing their risk of unintended health consequences and reducing their life expectancy. Rising obesity levels have also had an adverse effect on society and economic prosperity, causing a decrease in economic activity through loss of productive life years, and by placing increasing demands on healthcare systems.
Despite the scientific community recognising obesity as a multifactorial chronic disease which requires long-term management, it is often considered to be the responsibility of the individual by governments, healthcare systems and even people with obesity. Obesity is not recognition as disease in Italy, but it has a relevant impact on heath policy, clinical, social and economic.
On November 13th 2019, the Chamber of Deputies of the Italian Parliament voted unanimously to approve a motion that recognises obesity as a chronic disease and asks the Government to implement specific actions to promote and improve obesity prevention and management. Among the various commitments there is also a national plan that harmonises the activities in the field of prevention and the fight against obesity; full access to the diagnostic procedures for comorbidities, to dietary-food treatments in the most serious cases, access to second-level centres to evaluate psychological, pharmacological and surgical approaches; guidelines concerning the “first 1,000 days of life” of the child and programs for the prevention of childhood obesity.
Obesity now recognised as a chronic disease in Italy. The collaborative, multi-stakeholder effort was long in the making and includes a Charter of Human Rights for People Living with Obesity. The document enumerates actions necessary for the protection of health for obesity prevention and treatment of people living with obesity. The process implemented as a typical policy domino game.
Key messages
Obesity now recognised as a chronic disease. Policy domino game.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | - I Zani
- OPEN, Italia, Rome, Italy
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13
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Salati M, Marcheselli L, Ruvo ND, Esposito G, Fenocchi S, Cucciarrè G, Serra F, Cautero N, Cabry F, Gelmini R, Vittimberga G, Radi G, Solaini L, Morgagni P, Ercolani G, Ghidini M, Grizzi G, Ratti M, Gelsomino F, Luppi G, Dominici M, Spallanzani A. SO-12 Multicentre validation of an immune-inflammation-based nomogram to predict survival in western resectable gastroesophageal adenocarcinoma: The NOMOGAST. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.04.027] [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: 10/23/2022] Open
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14
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Serra F, Sergi W, Spatafora F, De Ruvo N, Farinetti A, Mattioli AV, Brugioni L, Gelmini R. Negative pressure wound therapy (NPWT) after cytoreductive surgery (CRS) and intraperitoneal chemotherapy (HIPEC) for peritoneal surface malignancies: preliminary report. G Chir 2019; 40:578-582. [PMID: 32007123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
AIM Surgical site (SSI) infection is a common complication that occurs in the post-operative period because it still has a decisive impact on the morbidity and mortality of patients and the costs associated with therapy and prolongation of hospitalization. In recent years, therefore, several authors have published their experience in the use of negative pressure prevention systems (NPWT) for the management of surgical wounds. Few authors in the literature have discussed the use of NPWT in patients undergoing cytoreductive surgery (CRS) for peritoneal surface malignancies associated with hyperthermic intraperitoneal chemotherapy (HIPEC). PATIENTS AND METHODS Nineteen patients undergoing open surgery, of which 15 underwent CRS+HIPEC operations; in 2 cases the dressing was applied to patients undergoing colon surgery, 1 case after emergency laparotomy for intestinal occlusion in a patient with a BMI of 29 and 1 case after gastric surgery for a tumour. At the and of the surgery, NPWT was placed on the surgical site; the therapy includes a closed and sealed system which maintains a negative pressure between at -125 mmHg on the surgical wound and which remains in place for five days. RESULTS The rationale for using an NPWT is to determine a barrier between the wound and external contamination, reducing wound tension and reducing the formation of seroma and hematoma. Moreover, during the HIPEC, several litres of water are used to wash the patient's abdominal cavity and then the patient is sutured again without the peritoneum, losing the function of protection from external microorganism and also of reabsorbing the intra-abdominal serum. A recent Cochrane collaboration about the application of NPWT demonstrates that it may reduce the rate of SSI compared with SSD, even if there is no sure evidence about the reduction of complications like seromas or dehiscence. CONCLUSION After the analysis of the preliminary data, we confirm the possibility to start with a randomised clinical trial, as suggested by the literature.
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15
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Salati M, Pipitone S, Rimini M, Gelsomino F, Casadei-Gardini A, Andrikou K, Schipilliti F, Cortesi G, Cassanelli L, Caffari E, Serra F, Ricciardolo A, De Ruvo N, Gelmini R, Cascinu S, Spallanzani A. A user-friendly nomogram to predict relapse-free survival (RFS) in western patients with resected gastric cancer (GC). Ann Oncol 2019. [DOI: 10.1093/annonc/mdz247.107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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16
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Salati M, Pipitone S, Rimini M, Gelsomino F, Gardini AC, Andrikou K, Schipilliti F, Cortesi G, Cassanelli L, Caffari E, Serra F, Ricciardolo A, De Ruvo N, Gelmini R, Cascinu S, Spallanzani A. Immune-inflammatory and clinicopathologic prognostic factors in a Western cohort of resected gastric cancers (GCs). Ann Oncol 2019. [DOI: 10.1093/annonc/mdz155.274] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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17
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Nicolucci A, Rossi MC, Dotta F, Vaccaro K, Crialesi R, Frontoni S, Morviducci L, Serra F, Lenzi A. Urban diabetes: the case of the metropolitan area of Rome. Eur J Public Health 2018. [DOI: 10.1093/eurpub/cky212.207] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
| | - MC Rossi
- Health City Institute, Rome, Italy
| | - F Dotta
- Health City Institute, Rome, Italy
| | | | | | | | | | - F Serra
- Health City Institute, Rome, Italy
| | - A Lenzi
- Health City Institute, Rome, Italy
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18
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Serra F, Damilano M, Ponchio D, Spinato C, Gaudioso A, Nicolucci A, Frontoni S, Morviducci L, Dotta F, Lenzi A. Rome as a walkable city for reduce the impact of the Obesity,T2DM and CDV risks. Eur J Public Health 2018. [DOI: 10.1093/eurpub/cky214.151] [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
Affiliation(s)
- F Serra
- Cities Changing Diabetes, Rome, Italy
| | | | | | | | | | | | | | | | - F Dotta
- Health City Institute, Rome, Italy
| | - A Lenzi
- Health City Institute, Rome, Italy
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19
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Da Empoli S, Fadda M, Mazzoni E, Gaudioso A, Serra F, Spinato C, Cosimi A, Vaccaro K, Dotta F, Lenzi A. Urban health in Italy: health outcomes and sustainable living. Eur J Public Health 2018. [DOI: 10.1093/eurpub/cky218.035] [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
Affiliation(s)
| | - M Fadda
- Health City Institute, Rome, Italy
| | | | | | - F Serra
- Cities Changing Diabetes, Rome, Italy
| | | | - A Cosimi
- Health City Institute, Rome, Italy
| | | | - F Dotta
- Health City Institute, Rome, Italy
| | - A Lenzi
- Health City Institute, Rome, Italy
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20
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Agostini F, Ruzza M, Corpillo D, Biondi L, Acquadro E, Canepa B, Viale A, Battiston M, Serra F, Aime S, Mazzucato M. 1H-NMR and MALDI-TOF MS as metabolomic quality control tests to classify platelet derived medium additives for GMP compliant cell expansion procedures. PLoS One 2018; 13:e0203048. [PMID: 30188924 PMCID: PMC6126812 DOI: 10.1371/journal.pone.0203048] [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] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2017] [Accepted: 08/14/2018] [Indexed: 02/07/2023] Open
Abstract
Introduction Ex vivo cell expansion under Good Manufacturing Practice (GMP) guidelines can be performed using medium additives containing human growth factors from platelets. These products can differently affect proliferation of adipose mesenchymal stromal stem cells (ASC). Qualification of medium additive performance is required for validation under GMP regulations: assessment of growth factor concentrations is not sufficient to predict the biological activity of the product batch. Proton nuclear magnetic resonance spectrometry (1H-NMR) and matrix-assisted laser desorption/ionization time of flight mass spectroscopy (MALDI-TOF MS) provide wide molecular characterization of samples. Aims We aimed to assess if 1H-NMR and MALDI-TOF MS techniques can be used as quality control test potentially predicting the impact of a medium additive on cell proliferation. Methods We tested the impact on ASC growth rate (cell proliferation assessment and cell morphology analysis) of four medium additives, obtained by different methods from human platelet apheresis product. In order to classify each medium additive, we evaluated growth factor concentrations and spectra obtained by 1H-NMR and by MALDI-TOF MS. Results Medium additive obtained by CaCl2 activation of platelet rich products induced higher proliferation rate vs additive derived from platelet depleted ones. Additives obtained by freeze-and-thaw methods weakly induced ASC proliferation. As expected, principal component analysis of growth factor concentrations did not unravel specific biochemical features characterizing medium additives in relation with their biological activity. Otherwise, while 1H-NMR showed a partial resolution capacity, analysis of MALDI-TOF MS spectra allowed unambiguous distinction between the medium additives we used to differently stimulate cell growth in vitro. Discussion MALDI-TOF and, despite limitations, 1H-NMR are promising cost effective and reliable quality controls to classify the potential of a medium additive to promote ASC growth. This can represent, after further investigations and appropriate validation, a significant advantage for GMP compliant manufacturing of advanced cell therapy products.
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Affiliation(s)
- Francesco Agostini
- Stem Cell Unit, Department of Translational Research, CRO Aviano National Cancer Institute, Aviano (PN), Italy
- * E-mail:
| | - Marta Ruzza
- GEMFORLAB SrL, Colleretto Giacosa (TO), Italy
| | | | | | | | | | - Alessandra Viale
- Molecular Imaging Center, Department of Molecular Biotechnologies & Health Sciences, University of Torino, Torino, Italy
| | - Monica Battiston
- Stem Cell Unit, Department of Translational Research, CRO Aviano National Cancer Institute, Aviano (PN), Italy
| | - Fabrizio Serra
- Clinical and Experimental Onco-Hematology Unit, Department of Translational Research, CRO Aviano National Cancer Institute, Aviano (PN), Italy
| | - Silvio Aime
- Molecular Imaging Center, Department of Molecular Biotechnologies & Health Sciences, University of Torino, Torino, Italy
| | - Mario Mazzucato
- Stem Cell Unit, Department of Translational Research, CRO Aviano National Cancer Institute, Aviano (PN), Italy
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21
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Serra F, Dudas S, Torres JM, Anderson R, Oevermann A, Espinosa JC, Czub S, Seuberlich T. Presumptive BSE cases with an aberrant prion protein phenotype in Switzerland, 2011: Lack of prion disease in experimentally inoculated cattle and bovine prion protein transgenic mice. Transbound Emerg Dis 2018; 65:1348-1356. [PMID: 29675959 DOI: 10.1111/tbed.12884] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2017] [Indexed: 01/21/2023]
Abstract
Bovine spongiform encephalopathy (BSE) is caused by different prion strains that are discriminated by the molecular characteristics of the pathological prion protein. In 2011, Switzerland reported two presumptive cases of BSE in cattle with a prion protein phenotype different from previously described strains, and it was unclear whether these findings were related to a transmissible disease and have implications on animal and public health. In this study, brain tissues of these cases were inoculated into transgenic mice expressing the bovine prion protein (BoPrP-Tg110) and into cattle. Clinical and pathological investigations as well as molecular testing did not provide evidence for the presence of BSE in the Swiss cases after two passages in BoPrP-Tg110 mice and a challenge period of 3.5 years in cattle. This lack of disease transmission suggests that the Swiss 2011 cases were not affected by a prion disease and were unrelated to the feed-born BSE epidemic.
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Affiliation(s)
- F Serra
- Division of Neurological Sciences, NeuroCenter, University of Bern, Bern, Switzerland.,Graduate School for Cellular and Biomedical Sciences, University of Bern, Bern, Switzerland
| | - S Dudas
- Lethbridge Laboratory, Canadian Food Inspection Agency, Lethbridge, Alberta, Canada
| | - J M Torres
- Centro de Investigación en Sanidad Animal, Valdeolmos, Madrid, Spain
| | - R Anderson
- Lethbridge Laboratory, Canadian Food Inspection Agency, Lethbridge, Alberta, Canada
| | - A Oevermann
- Division of Neurological Sciences, NeuroCenter, University of Bern, Bern, Switzerland
| | - J C Espinosa
- Centro de Investigación en Sanidad Animal, Valdeolmos, Madrid, Spain
| | - S Czub
- Lethbridge Laboratory, Canadian Food Inspection Agency, Lethbridge, Alberta, Canada
| | - T Seuberlich
- Division of Neurological Sciences, NeuroCenter, University of Bern, Bern, Switzerland
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22
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Antoniali G, Serra F, Lirussi L, Tanaka M, D'Ambrosio C, Zhang S, Radovic S, Dalla E, Ciani Y, Scaloni A, Li M, Piazza S, Tell G. Mammalian APE1 controls miRNA processing and its interactome is linked to cancer RNA metabolism. Nat Commun 2017; 8:797. [PMID: 28986522 PMCID: PMC5630600 DOI: 10.1038/s41467-017-00842-8] [Citation(s) in RCA: 73] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2016] [Accepted: 07/28/2017] [Indexed: 01/31/2023] Open
Abstract
Mammalian apurinic/apyrimidinic endonuclease 1 is a DNA repair enzyme involved in genome stability and expression of genes involved in oxidative stress responses, tumor progression and chemoresistance. However, the molecular mechanisms underlying the role of apurinic/apyrimidinic endonuclease 1 in these processes are still unclear. Recent findings point to a novel role of apurinic/apyrimidinic endonuclease 1 in RNA metabolism. Through the characterization of the interactomes of apurinic/apyrimidinic endonuclease 1 with RNA and other proteins, we demonstrate here a role for apurinic/apyrimidinic endonuclease 1 in pri-miRNA processing and stability via association with the DROSHA-processing complex during genotoxic stress. We also show that endonuclease activity of apurinic/apyrimidinic endonuclease 1 is required for the processing of miR-221/222 in regulating expression of the tumor suppressor PTEN. Analysis of a cohort of different cancers supports the relevance of our findings for tumor biology. We also show that apurinic/apyrimidinic endonuclease 1 participates in RNA-interactomes and protein-interactomes involved in cancer development, thus indicating an unsuspected post-transcriptional effect on cancer genes. APE1 plays an important role in the cellular response to oxidative stress, and mutations are linked to tumor progression and chemoresistance. Here, the authors characterize the interactions of APE1 with RNA and demonstrate a role in microRNA processing.
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Affiliation(s)
- Giulia Antoniali
- Department of Medicine, Laboratory of Molecular Biology and DNA repair, University of Udine, p.le M. Kolbe 4, Udine, 33100, Italy
| | - Fabrizio Serra
- Department of Medicine, Laboratory of Molecular Biology and DNA repair, University of Udine, p.le M. Kolbe 4, Udine, 33100, Italy.,Clinical and Experimental Onco-Hematology Unit, Centro di Riferimento Oncologico, I.R.C.C.S., via Franco Gallini 2, Aviano (PN), 33081, Italy
| | - Lisa Lirussi
- Department of Medicine, Laboratory of Molecular Biology and DNA repair, University of Udine, p.le M. Kolbe 4, Udine, 33100, Italy.,Department of Clinical Molecular Biology, University of Oslo and Akershus University Hospital, Sykehusveien 27, Nordbyhagen, 1474, Norway
| | - Mikiei Tanaka
- Laboratory of Biochemistry, National Heart Lung and Blood Institute, National Institutes of Health, 50 South Drive, MSC-8012, Bethesda, MD, 20892-8012, USA
| | - Chiara D'Ambrosio
- Proteomics and Mass Spectrometry Laboratory, Institute for the Animal Production System in the Mediterranean Environment (ISPAAM) National Research Council (CNR) of Italy, via Argine 1085, Naples, 80147, Italy
| | - Shiheng Zhang
- Cancer Center of Daping Hospital, Third Military Medical University, Chongqing, 400042, China
| | | | - Emiliano Dalla
- Laboratorio Nazionale CIB, Area Science Park Padriciano, Trieste, 34149, Italy
| | - Yari Ciani
- Laboratorio Nazionale CIB, Area Science Park Padriciano, Trieste, 34149, Italy
| | - Andrea Scaloni
- Proteomics and Mass Spectrometry Laboratory, Institute for the Animal Production System in the Mediterranean Environment (ISPAAM) National Research Council (CNR) of Italy, via Argine 1085, Naples, 80147, Italy
| | - Mengxia Li
- Cancer Center of Daping Hospital, Third Military Medical University, Chongqing, 400042, China.
| | - Silvano Piazza
- Laboratorio Nazionale CIB, Area Science Park Padriciano, Trieste, 34149, Italy. .,Bioinformatics Core Facility, Centre for Integrative Biology, CIBIO, University of Trento, via Sommarive 18, Povo, Trento, TN, 38123, Italy.
| | - Gianluca Tell
- Department of Medicine, Laboratory of Molecular Biology and DNA repair, University of Udine, p.le M. Kolbe 4, Udine, 33100, Italy.
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Serra F, Romualdi C, Fogolari F. Similarity Measures Based on the Overlap of Ranked Genes Are Effective for Comparison and Classification of Microarray Data. J Comput Biol 2016; 23:603-14. [PMID: 27104372 DOI: 10.1089/cmb.2015.0057] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Similarity (or conversely distance) measures are at the heart of most bioinformatic applications. When the similarity involves only a small subset of features out of many, global similarity measures may be significantly affected by noise. Selecting only a subset of (putatively relevant) features for comparison is a widespread solution to the problem albeit affected by arbitrariness and manual intervention. The problem is becoming more and more important due to the increasing amount of experimental data available. In recent years measures based on ranking similarities between two datasets have been proposed. Here, we use one of the proposed rank similarity measures, sharing some aspects with the fraction enrichment score used for protein structure prediction and the gene set enrichment analysis, and test its performance in classifying experiments. The discrimination ability of the similarity measures based on the overlap of ranked genes tested here compares well or better with standard measures of similarity. This conclusion supports the use of rank-based proximity measures to gain further insight in dataset comparisons, particularly on expression data obtained by different techonologies (e.g., RNA-seq and microarrays).
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Affiliation(s)
- Fabrizio Serra
- 1 Department of Biomedical Sciences and Technologies, University of Udine, Udine , Italy
| | - Chiara Romualdi
- 2 Department of Biology, University of Padova , Padova, Italy
| | - Federico Fogolari
- 1 Department of Biomedical Sciences and Technologies, University of Udine, Udine , Italy .,3 Istituto Nazionale Biostrutture e Biosistemi , Roma, Italy
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Boujon C, Serra F, Seuberlich T. Atypical variants of bovine spongiform encephalopathy: rare diseases with consequences for BSE surveillance and control. SCHWEIZ ARCH TIERH 2016; 158:171-7. [DOI: 10.17236/sat00053] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Serra F, Duarte S, Abreu S, Marques C, Cassis J, Saraiva M. Cushing's syndrome due to ectopic ACTH production by a nasal paraganglioma. Endocrinol Diabetes Metab Case Rep 2013; 2013:130038. [PMID: 24616770 PMCID: PMC3922001 DOI: 10.1530/edm-13-0038] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2013] [Accepted: 08/30/2013] [Indexed: 11/09/2022] Open
Abstract
Ectopic secretion of ACTH is an infrequent cause of Cushing's syndrome. We report a case of ectopic ACTH syndrome caused by a nasal paraganglioma, a 68-year-old female with clinical features of Cushing's syndrome, serious hypokalaemia and a right paranasal sinus' lesion. Cranial magnetic resonance image showed a 46-mm mass on the right paranasal sinuses. Endocrinological investigation confirmed the diagnosis of ectopic ACTH production. Resection of the tumour normalised ACTH and cortisol secretion. The tumour was found to be a paraganglioma through microscopic analysis. On follow-up 3 months later, the patient showed nearly complete clinical recovery. Ectopic ACTH syndrome due to nasal paraganglioma is extremely uncommon, as only two other cases have been discussed in the literature.
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Affiliation(s)
- F Serra
- Department of Endocrinology Hospital Egas Moniz, Centro Hospitalar Lisboa Ocidental Lisbon Portugal
| | - S Duarte
- Department of Endocrinology Hospital Egas Moniz, Centro Hospitalar Lisboa Ocidental Lisbon Portugal
| | - S Abreu
- Department of Endocrinology Hospital Central do Funchal Funchal Portugal
| | - C Marques
- Department of Neurosurgery Hospital Egas Moniz, Centro Hospitalar Lisboa Ocidental Lisbon Portugal
| | - J Cassis
- Department of Pathology Hospital Egas Moniz, Centro Hospitalar Lisboa Ocidental Lisbon Portugal
| | - M Saraiva
- Department of Endocrinology Hospital Egas Moniz, Centro Hospitalar Lisboa Ocidental Lisbon Portugal
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Oliveira S, Teixeira N, Fernandes L, Brás S, Serra F. EP-1493 ALTERNATIVE REGIMENS FOR PROSTATE CANCER TREATMENT USING RADIATION THERAPY. Radiother Oncol 2012. [DOI: 10.1016/s0167-8140(12)71826-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Braga J, Cardoso V, Abreu A, Didoné L, Evangelista M, Serra F. Ergonomic assessment of porridge roaming sale system. Work 2012; 41 Suppl 1:5532-5. [DOI: 10.3233/wor-2012-0873-5532] [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: 11/15/2022] Open
Affiliation(s)
- J. Braga
- Ergonomics Research and Development Center, Federal University of Amazonas, Av. General Rodrigo Otávio, n° 3.000, Aleixo, CEP 69.077-000, Manaus- AM, Brazil
| | - V. Cardoso
- Ergonomics Research and Development Center, Federal University of Amazonas, Av. General Rodrigo Otávio, n° 3.000, Aleixo, CEP 69.077-000, Manaus- AM, Brazil
| | - A. Abreu
- Ergonomics Research and Development Center, Federal University of Amazonas, Av. General Rodrigo Otávio, n° 3.000, Aleixo, CEP 69.077-000, Manaus- AM, Brazil
| | - L. Didoné
- Ergonomics Research and Development Center, Federal University of Amazonas, Av. General Rodrigo Otávio, n° 3.000, Aleixo, CEP 69.077-000, Manaus- AM, Brazil
| | - M. Evangelista
- Ergonomics Research and Development Center, Federal University of Amazonas, Av. General Rodrigo Otávio, n° 3.000, Aleixo, CEP 69.077-000, Manaus- AM, Brazil
| | - F. Serra
- Ergonomics Research and Development Center, Federal University of Amazonas, Av. General Rodrigo Otávio, n° 3.000, Aleixo, CEP 69.077-000, Manaus- AM, Brazil
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Ranke MB, Martin DD, Ehehalt S, Schwarze CP, Serra F, Wollmann HA, Schweizer R. Short children with low birth weight born either small for gestational age or average for gestational age show similar growth response and changes in insulin-like growth factor-1 to growth hormone treatment during the first prepubertal year. Horm Res Paediatr 2011; 76:104-12. [PMID: 21757866 DOI: 10.1159/000327373] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2010] [Accepted: 03/04/2011] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND/AIMS Growth hormone (GH) is an accepted treatment for short children born small for gestational age (SGA). The aim of this analysis was to compare the growth response to GH in children with low birth weight born SGA or appropriate for gestational age (AGA). METHODS This retrospective observational study is from one center. Of all the children with a birth weight <2,500 g treated, 50 were primarily diagnosed as having growth hormone deficiency ([A] SGA, n = 26; [B] AGA, n = 24) and 138 were originally diagnosed SGA or AGA (reclassified: [C] SGA, n = 102; [D] AGA, n = 36). RESULTS [Median; A, B, C, D]: at an age of 4.9, 5.2, 5.8, 5.8 years, a height of -2.9, -2.4, -2.8, -2.9 SDS and a GH dose of 27, 28, 41, 39 μg/kg/day, the children grew 0.9, 0.9, 0.8, 0.9 SDS in height, respectively. Insulin-like growth factor-1 (IGF-1) at GH start was, respectively, -2.1, -2.2, -0.4, -0.9 SDS and rose to (delta IGF-1) 1.8, 2.0, 1.7, 1.5 SDS during the first year on GH. All differences were not significant. CONCLUSIONS We show for the first time that short stature children with low birth weight born AGA experience the same increase in height and IGFs to GH treatment as those born SGA irrespective of actual GH secretory status.
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Affiliation(s)
- M B Ranke
- University Children's Hospital, Tübingen, Germany.
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Figueiredo J, Naylor G, Walsh M, Dunstan M, Scannell R, Serra F. MAST YAG Thomson scattering upgrade alignment system. Rev Sci Instrum 2010; 81:10D521. [PMID: 21033876 DOI: 10.1063/1.3475377] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
The recent upgrade to the MAST YAG Thomson scattering while enhancing the diagnostic capabilities increased the complexity of the system. There are eight YAG lasers now operational, doubling the number from the previous setup. This means alignment between each laser individually and reference points is essential to guarantee data quality and diagnostic reliability. To address this issue an alignment system was recently installed. It mimics the beams alignment in MAST by sampling 1% of the laser beam that is sent into a telescope which demagnifies by a factor of 8. The demagnified beam is viewed with a CCD camera. By scanning the camera the profile and position of the beams in the scattering zone and in a range of several meters inside MAST can be determined. Therefore alignment is checked along the beam path without having to sample it inside the vessel. The experimental apparatus and test procedures are described.
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Affiliation(s)
- J Figueiredo
- Association EURATOM-IST, Av. Rovisco Pais, Lisboa 1049-001, Portugal.
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López N, Sánchez J, Picó C, Palou A, Serra F. Dietary l-leucine supplementation of lactating rats results in a tendency to increase lean/fat ratio associated to lower orexigenic neuropeptide expression in hypothalamus. Peptides 2010; 31:1361-7. [PMID: 20347902 DOI: 10.1016/j.peptides.2010.03.028] [Citation(s) in RCA: 22] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/09/2009] [Revised: 03/22/2010] [Accepted: 03/22/2010] [Indexed: 11/28/2022]
Abstract
The aim of this study was to assess the effects of dietary leucine supplementation in lactating dams, particularly on energy homeostasis through signaling mechanisms in the central nervous system. Dams were fed ad libitum with standard diet during pregnancy (control dams) or supplemented with 2% leucine (leucine-supplemented dams) from delivery onwards. Food intake, body weight and composition were periodically recorded. Hypothalamus was collected at the end of lactation, and the expression of neuropeptide Y (NPY), agouti-related protein (AgRP) pro-opiomelanocortin (POMC), cocaine and amphetamine regulated transcript (CART), insulin receptor (InsR), ghrelin receptor (GSHR), melanocortin receptor (MCR4), leptin receptor (Ob-Rb) and suppressor of cytokine signaling 3 (SOCS3) were analyzed. Dietary leucine supplementation to lactating rats increased plasma leucine by 56%, modulated body composition and contributed to a tendency of higher ratio of lean/fat mass content of dams during lactation, without affecting food intake, thermogenesis capacity or body or tissue/organs weights. No differences in body weight of offspring from control and leucine-supplemented dams were found. The expression of orexigenic peptides (NPY and AgRP) decreased in leucine-dams, whereas the expression of anorexigenic peptides (POMC and CART), the hypothalamic receptors of insulin, ghrelin, melanocortin and leptin and SOCS3 did not change by leucine supplementation. In conclusion, increased leucine intake during lactation may contribute to a healthier profile of body composition in dams, without compromising the growth and development of the progeny by a mechanism associated with lower expression of orexigenic neuropeptides in hypothalamus.
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Affiliation(s)
- N López
- Molecular Biology, Nutrition and Biotechnology (Nutrigenomics), University of the Balearic Islands (UIB) and CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Palma de Mallorca, Spain
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Baldo A, Bezzola P, Curatolo S, Florio T, Lo Guzzo G, Lo Presti M, Sala GP, Serra F, Tonin E, Pellicano M, Pimpinelli N. Efficacy of an alpha-hydroxy acid (AHA)-based cream, even in monotherapy, in patients with mild-moderate acne. GIORN ITAL DERMAT V 2010; 145:319-322. [PMID: 20461041] [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: 05/29/2023]
Abstract
AIM AND METHODS The treatment of mild-moderate acne with topical drugs in association with appropriate cosmetics is currently the golden standard. The tolerability and efficacy of a cream formulated with a new mix of alpha-hydroxy acids (Hyseac AHA cream) in 248 patients with mild-moderate acne (comedonic, inflammatory, or mixed) have been investigated in a multicenter, non-randomized, open study by 10 dermatologists from different Italian areas during their routine practice. The medication with Hyseac AHA cream was prescribed at first consultation for 60 days, twice a day, either as a monotherapy (49.2% patients) or in association with a pharmacological treatment (50.2%). RESULTS The tolerability was good to excellent in 92.3% patients, without significant differences between patients using AHA cream in monotherapy (90.0%) or associated with concomitant pharmacological treatment (97.6%). The efficacy was overall high in 64.2% patients, again without significant differences related to concomitant pharmacological treatment or not (64.8% vs. 63.3%) and/or the acne clinical type (comedonic vs. inflammatory vs. mixed: 69.2% vs. 66.7% vs. 58%). CONCLUSION The results of this study, while confirming the high tolerability and efficacy of this AHA cream in the treatment of mild/moderate acne, reasonably suggest its possible use also in monotherapy. Furthermore, its use can be reasonably hypothesized as a maintenance treatment after specific pharmacological treatment even in more severe acne types.
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Affiliation(s)
- A Baldo
- Dermatologic Clinic, Napoli Federico II University, Milan, Italy
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33
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da Cruz MC, Espadinha A, Viegas M, Silva A, Sequeira T, Gomes N, Pereira P, Feijó A, Melo M, Brás S, Serra F, Galhos R, Ramalho M, Ferreira P, Teixeira N, Condon O, Vieira G. AVALIATION OF THE QUALITY INDICATOR RADIOTHERAPY GLOBAL TREATM ENT TIME. Radiother Oncol 2009. [DOI: 10.1016/s0167-8140(12)73248-6] [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: 10/27/2022]
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Serra F, Brás S, Oliveira S, Ramalho M, Teixeira N, Ferreira P, Condon O, Vieira G. AN ALTERNATIVE OPTION TO CLASSICAL BREAST IRRADIATION UNDER CERTAIN CLINICAL CIRCUMSTANCES. Radiother Oncol 2009. [DOI: 10.1016/s0167-8140(12)72992-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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MedeiraBrás S, Oliveira S, Serra F, Pontes M, Da Cruz KJ, Sousa M, Ferreira P, Teixeira N. IMPLEMENTATION OF PORTAL DOSIMETRY WITH AN AMORPHOUS SILICON EPID. Radiother Oncol 2009. [DOI: 10.1016/s0167-8140(12)73210-3] [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: 11/15/2022]
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Cupido L, Cardinali A, Igreja R, Serra F, Manso ME, Murari A. High resolution fast wave reflectometry: JET design and implications for ITER. Rev Sci Instrum 2008; 79:10F106. [PMID: 19068526 DOI: 10.1063/1.2953576] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
The measurement of the fuel mixture remains a very difficult task in thermonuclear plasmas, where the hydrogen isotopes are fully stripped and do not emit line radiation. On the other hand, direct determination of the ion species mix will be essential in the reactor to keep the mixture close to 50/50 and maximize the fusion output. In this paper, the design of fast wave reflectometry for JET is reviewed to show the potential of such a method in the perspective of ITER. The main design elements of the antenna and the detection system, based on vectorial measurements, are reported. The main challenges to such a diagnostic, mainly the intrinsic ion cyclotron emission from the plasma and the extensive use of ion cyclotron radiofrequencies as additional heating, are addressed in detail. The overall design indicates that the proposed system would be able to provide a measurement of the fuel ratio with spatial resolution in the range of few centimeters and temporal resolution in the range of 1 ms in the vast majority of JET scenarios.
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Affiliation(s)
- L Cupido
- EURATOM-IST Association, IPFN, IST, 1049-001 Lisboa, Portugal
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Serra F, Janeiro A, Calderone G, Rojas JMM, Rhodes C, Gonthier LA, Martin F, Lees M, Mosandl A, Sewenig S, Hener U, Henriques B, Ramalho L, Reniero F, Teixeira AJ, Guillou C. Inter-laboratory comparison of elemental analysis and gas chromatography combustion isotope ratio mass spectrometry (GC-C-IRMS). Part I: delta13C measurements of selected compounds for the development of an isotopic Grob-test. J Mass Spectrom 2007; 42:361-9. [PMID: 17238241 DOI: 10.1002/jms.1168] [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] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
This study was directed towards investigating suitable compounds to be used as stable isotope reference materials for gas chromatography combustion isotope ratio mass spectrometry (GC-C-IRMS) calibration. Several compounds were selected from those used in the 'Grob-test' mixture. Oxygen- and nitrogen-containing substances were added to these compounds to allow the mixture to be used as a possible multi-isotopic calibration tool for 2H/1H, 13C/12C, 15N/14N and 18O/16O ratio determinations. In this paper we present the results of delta13C measurements performed by the consortium of the five laboratories taking part in this inter-calibration exercise. All the compounds were individually assessed for homogeneity, short-term stability and long-term stability by means of EA-IRMS, as required by the bureau communitaire de reference (BCR) Guide for Production of Certified Reference Materials. The results were compared then with the GC-C-IRMS measurements using both polar and non-polar columns, and the final mixture of selected compounds underwent a further certification exercise assessing limits of accuracy and reproducibility under specified GC-C-IRMS conditions.
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Affiliation(s)
- F Serra
- European Commission, Joint Research Centre, Institute for Health and Consumer Protection, Physical and Chemical Exposure Unit, BEVABS, 21020 Ispra (VA), Italy.
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Raieli V, Brighina F, Calagna G, Calia M, Consolo F, Crinò S, Demma M, Ferrara D, Francolini M, Lupo R, Morreale C, Puma D, Ragusa D, Santangelo G, Serra F, La Pegna* G. "The Headache Week": a useful tool to highlight "invisible" migraineurs. J Headache Pain 2005; 6:422-3. [PMID: 16362718 PMCID: PMC3452070 DOI: 10.1007/s10194-005-0238-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2005] [Accepted: 07/19/2005] [Indexed: 11/30/2022] Open
Affiliation(s)
- V. Raieli
- />Gruppo Regionale SISC, Palermo, Italy
- />Div. NPI, Osp. Ingrassia, via Giuseppe Pagano 14, I-90129 Palermo, Italy
| | | | | | - M. Calia
- />Gruppo Regionale SISC, Palermo, Italy
| | | | - S. Crinò
- />Gruppo Regionale SISC, Palermo, Italy
| | - M. Demma
- />Gruppo Regionale SISC, Palermo, Italy
| | | | | | - R. Lupo
- />Gruppo Regionale SISC, Palermo, Italy
| | | | - D. Puma
- />Gruppo Regionale SISC, Palermo, Italy
| | - D. Ragusa
- />Gruppo Regionale SISC, Palermo, Italy
| | | | - F. Serra
- />Gruppo Regionale SISC, Palermo, Italy
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Cristofolini L, Fontana MP, Serra F, Fasano A, Riccio P, Konovalov O. Microstructural analysis of the effects of incorporation of myelin basic protein in phospholipid layers. Eur Biophys J 2005; 34:1041-8. [PMID: 15917983 DOI: 10.1007/s00249-005-0489-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2005] [Revised: 04/07/2005] [Accepted: 05/04/2005] [Indexed: 12/01/2022]
Abstract
We report an X-ray reflectivity study on the effects of adsorption of myelin basic protein (MBP) on Langmuir monolayers and on deposited Langmuir-Schaefer multilayers of the phospholipid dipalmitoyl phosphatidylglycerol (DPPG). We provide for the first time, direct microscopic evidence on the destructuring effects of MBP leading to plasticity of the DPPG layers supporting commonly accepted models of the stabilizing role of MBP in the myelin membrane. We also show how protein adsorption onto the layer is determined both by electrostatic and nonspecific hydrophobic interactions.
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Affiliation(s)
- L Cristofolini
- Dipartmento di Fisica e Istituto Nazionale per la Fisica della Materia, Universita' di Parma, Parco Area delle Scienze 7a, 43100 Parma, Italy.
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Abstract
The microsurgical treatment of canalicular stenosis is indicated in localized stenosis. The goal is to restore lacrymal mucosa continuity in order to re-establish spontaneous lacrymal drainage. Stenosis located close to the puncti can be reached by the direct approach, those close to the lacrymal sac require an approach via the common canaliculus. The surgical indications and techniques are developed, with particular attention given to common canaliculus repair and the new surgical approach to reach it.
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Affiliation(s)
- F Serra
- Cabinet Ophtalmologique, 5 rue Sadi Carnot, 06600 Antibes
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Serra F, Reniero F, Guillou CG, Moreno JM, Marinas JM, Vanhaecke F. 13C and 18O isotopic analysis to determine the origin of L-tartaric acid. Rapid Commun Mass Spectrom 2005; 19:1227-1230. [PMID: 15838929 DOI: 10.1002/rcm.1918] [Citation(s) in RCA: 11] [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: 05/24/2023]
Abstract
Due to the ever-increasing amount of attention paid to the 'naturalness' of ingredients in food and beverages by both consumers and controlling authorities, the search for suitable methods for the characterisation of origin is of primary importance. Within the European Community the wine production industry is often faced with the problem of origin control of tartaric acid. This has led to the decision that only L-tartaric acid extracted from grapes (therefore natural) should be used. In order to implement these regulations, a screening of different techniques has been carried out to assess the methodology that best identifies the origin of the tartaric acid. It has already been indicated in previous scientific literature that isotope ratio mass spectrometry is an ideal technique for this type of identification. In this paper we present the results obtained for the measurement of the isotope ratios of carbon-13 and oxygen-18 of natural and synthetic samples of L-tartaric acid considering also natural samples of different geographical origin and years of production.
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Affiliation(s)
- F Serra
- European Commission, Joint Research Centre, Institute for Health and Consumer Protection, Physical and Chemical Exposure Unit, BEVABS, TP740, Italy.
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Abstract
Upper cosmetic blepharoplasty allows to treat cutaneo-orbicularis excess of the upper eyelid, which is often associated with fat prolapse. Using the same surgical way, it is also possible to treat external heaviness of the brow, mild brow ptosis and glabellar wrinkles. We will describe the most important stages of these different surgical techniques.
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Affiliation(s)
- F Serra
- Cabinet Ophtalmologique, 5, rue Sadi Carnot, 06600 Antibes
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Abadal G, Davis ZJ, Borrisé X, Hansen O, Boisen A, Barniol N, Pérez-Murano F, Serra F. Atomic force microscope characterization of a resonating nanocantilever. Ultramicroscopy 2003; 97:127-33. [PMID: 12801665 DOI: 10.1016/s0304-3991(03)00037-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An atomic force microscope (AFM) is used as a nanometer-scale resolution tool for the characterization of the electromechanical behaviour of a resonant cantilever-based mass sensor. The cantilever is actuated electrostatically by applying DC and AC voltages from a driver electrode placed closely parallel to the cantilever. In order to minimize the interaction between AFM probe and the resonating transducer cantilever, the AFM is operated in a dynamic non-contact mode, using oscillation amplitudes corresponding to a low force regime. The dependence of the static cantilever deflection on DC voltage and of the oscillation amplitude on the frequency of the AC voltage is measured by this technique and the results are fitted by a simple non-linear electromechanical model.
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Affiliation(s)
- G Abadal
- Dept. d'Enginyeria Electrònica, Universitat Autònoma de Barcelona, Bellaterra E-08193, Spain.
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Abstract
During the last 6 y, the European Union has undergone a profound qualitative change in the focus on food safety problems. In 1997, nine new scientific committees were created, including the Scientific Committee on Food (SCF) and the Scientific Steering Committee (SSC), and were put under the auspices of the Directorate General in charge of defending consumer interests and health. The process is foreseen to be completed by the incorporation in 2003 of all food safety activities of these committees into the European Food Safety Authority (EFSA). Among the immediate challenges in the near future are the scientific and technological developments and the regulatory measures for the so-called 'functional foods', which can positively affect the health and well-being of consumers. Functional foods are a recent phenomenon in Europe and are, as yet, not covered by any specific legislation. The two key aspects in the evaluation of functional foods are safety and efficacy. Whereas safety can be covered under different legislative umbrellas such as novel foods (NFs), foods for particular nutritional purposes, supplements, additives and others, the issue of evaluation of their efficacy is only at a very early stage since the criteria to establish the validity of 'health claims' has not been clearly addressed at a European level.
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Affiliation(s)
- A Palou
- Laboratori de Biologia Molecular, Nutrició i Biotecnologia, Departament de Biologia Fonamental i Ciències de la Salut, Universitat de les Illes Balears, Palma de Mallorca, Spain.
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Falappa P, Fassari FM, Fanelli A, Genovese E, Ascani E, Crostelli M, Salsano V, Montanaro A, Di Lazzaro A, Serra F. Aneurysmal bone cysts: treatment with direct percutaneous Ethibloc injection: long-term results. Cardiovasc Intervent Radiol 2002; 25:282-90. [PMID: 12016517 DOI: 10.1007/s00270-001-0062-2] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.2] [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: 11/27/2022]
Abstract
PURPOSE To assess the efficacy and long-term results of Ethibloc treatment in aneurysmal bone cysts (ABC). METHODS Thirteen patients with ABC were treated with direct percutaneous Ethibloc injection. Four patients had only one injection and the other nine patients from two to four injections. No severe complications were observed; in two patients a local leakage of Ethibloc from the cyst into the soft tissues occurred but it was temporary and the consequent inflammation self-healed without residua and sequelae. Imaging follow-up lasted from 6 to 67 months and included conventional radiology (CR) and magnetic resonance imaging (MRI), both used in the presurgical phase. RESULTS AND CONCLUSIONS All images demonstrated a remarkable shrinkage of the cystic lesion and bone cortex thickening. In all patients, circumscribed areas of lucency persisted at radiography, corresponding to residual cystic areas without fluid-fluid levels at MRI. Pain, which was present in all the patients before treatment, was relieved within a month. According to our experience, direct percutaneous Ethibloc injection is effective in the treatment of ABC and can be recommended as the first-choice treatment. Due to its higher sensitivity MRI must be included either in the pretreatment phase to study the multilocular structure or in the imaging follow-up to evaluate the efficacy of Ethibloc in persistently non-responsive areas.
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Affiliation(s)
- Piergiorgio Falappa
- Department of Radiology, Hospital IDI IRCCS, Via Monti di Creta, 104, I-00167 Rome, Italy.
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Brescia MA, Di Martino G, Guillou C, Reniero F, Sacco A, Serra F. Differentiation of the geographical origin of durum wheat semolina samples on the basis of isotopic composition. Rapid Commun Mass Spectrom 2002; 16:2286-2290. [PMID: 12478573 DOI: 10.1002/rcm.860] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
The identification of the geographical origin of foods is attracting great interest from consumers and producers since it may be used as a criterion for guaranteeing quality and authenticity. Stable isotope techniques can provide useful information on the origin of food products. The natural abundance isotopic ratios of carbon, oxygen and nitrogen were determined and a comparison made between the isotopic content of samples originating from Italy and those of samples originating from other countries (Canada, Turkey, Australia). A correlation was found between the isotopic composition and geographical origin of the samples. The relationship between isotopic content and the latitude has been confirmed.
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Affiliation(s)
- M A Brescia
- Dipartimento di Chimica, Campus Universitario, Università di Bari, Via Orabona 4, 70126 Bari, Italy
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Abstract
Obesity could well become the most common health problem of the 21st century. There are more opportunities to consume large quantities of food: big portions of tasty, varied food, at reasonable prices, are available everywhere. Moreover, our bodies are better adapted to combat weight loss than to combat weight gain, since for thousands of years our species evolved in circumstances where nutrients were in short supply. The response of each individual to diet and other environmental factors varies considerably, depending on the characteristics of his/her body weight control mechanisms. The differentiating element in the future, especially as regards the dietary and pharmacological control of obesity, will be knowledge of an individual's possible response depending on his/her genetic background. Obesity can occur as a result of genetic or acquired changes in three main types of biochemical processes, which are the main focus of this review: a)feeding control, which determines the sensations of satiety and hunger through processes that depend on an interplay between internal signals (notably leptin) and environmental factors; b) energy efficiency, in particular the activation of thermogenesis mediated by uncoupling proteins (UCPs) that makes it possible to dissipate part of the energy contained in food as heat instead of accumulating it as fat, and c) adipogenesis, the process by which cells specialised in fat storage (adipocytes) are formed, which is controlled by an interplay of transcription factors, including members of the C/EBP, PPARgamma and ADD families. The knowledge of a growing number of genes and molecules implicated in these three types of processes and of their metabolic relationships is leading toward a molecular understanding of the body weight regulatory system, and is paving the way for new methods of obesity control, especially pharmacological but also nutritional and possibly involving genetic intervention.
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Affiliation(s)
- A Palou
- Departament de Biologia Fonamental i Ciències de la Salut, Bioquímica i Biologia Molecular, Universitat de les Illes Balears, Palma de Mallorca, Spain.
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Cerri A, Almirante N, Barassi P, Benicchio A, Fedrizzi G, Ferrari P, Micheletti R, Quadri L, Ragg E, Rossi R, Santagostino M, Schiavone A, Serra F, Zappavigna MP, Melloni P. 17beta-O-Aminoalkyloximes of 5beta-androstane-3beta,14beta-diol with digitalis-like activity: synthesis, cardiotonic activity, structure-activity relationships, and molecular modeling of the Na(+),K(+)-ATPase receptor. J Med Chem 2000; 43:2332-49. [PMID: 10882359 DOI: 10.1021/jm990627w] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A series of digitalis-like compounds with a 17-aminoalkoxyiminoalkyl or -alkenyl substituent was synthesized and evaluated for inhibition of Na(+),K(+)-ATPase and for inotropic activity. The highest inhibition was found with compounds having the substituent in configuration 17beta and the amino group at a distance of 6 or 7 bonds from C(17) of the digitoxigenin skeleton. The presence of the oxime function strengthens the interaction with the receptor, more if alpha,beta-unsaturated, thus mimicking the electronic situation of the unsaturated lactone in natural digitalis compounds. The most active compounds showed Na(+),K(+)-ATPase inhibitory potencies (IC(50)) 17-25 times higher than the standards digitoxigenin and digoxin and 3-11 times higher inotropic potencies (EC(50)) in isolated guinea pig left atria. These features are supported by a molecular model suggesting the possible interactions of the groups described above with particular amino acid residues in the H1-H2 domains of Na(+),K(+)-ATPase. Some interactions are the classical ones already described in the literature; a new, very strong interaction of the basic group with the Cys138 was found and adds new possibilities to design compounds interacting with this region of the receptor. The most interesting compounds were also studied in vivo in the anesthetized guinea pig for evaluating their inotropic effect versus the lethal dose. Compounds 9 and 12 showed a slightly higher safety ratio than digoxin and deserve further evaluation.
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Affiliation(s)
- A Cerri
- Departments of Medicinal Chemistry and Cardiovascular Pharmacology, Prassis Istituto di Ricerche Sigma-Tau, Via Forlanini 3, 20019 Settimo Milanese (MI), Italy.
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Zuffa GG, Normark WR, Serra F, Brunner CA. Turbidite Megabeds in an Oceanic Rift Valley Recording Jökulhlaups of Late Pleistocene Glacial Lakes of the Western United States. J Geol 2000; 108:253-274. [PMID: 10769156 DOI: 10.1086/314404] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/1999] [Accepted: 01/06/2000] [Indexed: 05/23/2023]
Abstract
Escanaba Trough is the southernmost segment of the Gorda Ridge and is filled by sandy turbidites locally exceeding 500 m in thickness. New results from Ocean Drilling Program (ODP) Sites 1037 and 1038 that include accelerator mass spectrometry (AMS) 14C dates and revised petrographic evaluation of the sediment provenance, combined with high-resolution seismic-reflection profiles, provide a lithostratigraphic framework for the turbidite deposits. Three fining-upward units of sandy turbidites from the upper 365 m at ODP Site 1037 can be correlated with sediment recovered at ODP Site 1038 and Deep Sea Drilling Program (DSDP) Site 35. Six AMS 14C ages in the upper 317 m of the sequence at Site 1037 indicate that average deposition rates exceeded 10 m/k.yr. between 32 and 11 ka, with nearly instantaneous deposition of one approximately 60-m interval of sand. Petrography of the sand beds is consistent with a Columbia River source for the entire sedimentary sequence in Escanaba Trough. High-resolution acoustic stratigraphy shows that the turbidites in the upper 60 m at Site 1037 provide a characteristic sequence of key reflectors that occurs across the floor of the entire Escanaba Trough. Recent mapping of turbidite systems in the northeast Pacific Ocean suggests that the turbidity currents reached the Escanaba Trough along an 1100-km-long pathway from the Columbia River to the west flank of the Gorda Ridge. The age of the upper fining-upward unit of sandy turbidites appears to correspond to the latest Wisconsinan outburst of glacial Lake Missoula. Many of the outbursts, or jökulhlaups, from the glacial lakes probably continued flowing as hyperpycnally generated turbidity currents on entering the sea at the mouth of the Columbia River.
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Silva A, Cupido L, Loureiro C, Vergamota S, Varela P, Santos J, Manso M, Serra F, Meneses L, Tavares M, Nunes I, Kurzan B, Suttrop W, Grossman V. New developments of the ASDEX Upgrade tokamak microwave reflectometer. Fusion Engineering and Design 1999. [DOI: 10.1016/s0920-3796(99)00039-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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