354 results on '"Correani, A"'
Search Results
52. DHA turnover in pregnant women using the natural abundance variation of 13C: a pilot study
- Author
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Simonato, Manuela, primary, Visentin, Silvia, additional, Verlato, Giovanna, additional, Cosmi, Erich, additional, Correani, Alessio, additional, Cogo, Paola, additional, and Carnielli, Virgilio Paolo, additional
- Published
- 2022
- Full Text
- View/download PDF
53. Extracellular Matrix Molecular Remodeling in Human Liver Fibrosis Evolution.
- Author
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Andrea Baiocchini, Claudia Montaldo, Alice Conigliaro, Alessio Grimaldi, Virginia Correani, Francesco Mura, Fabiola Ciccosanti, Nicolina Rotiroti, Alessia Brenna, Marzia Montalbano, Gianpiero D'Offizi, Maria Rosaria Capobianchi, Riccardo Alessandro, Mauro Piacentini, Maria Eugenia Schininà, Bruno Maras, Franca Del Nonno, Marco Tripodi, and Carmine Mancone
- Subjects
Medicine ,Science - Abstract
Chronic liver damage leads to pathological accumulation of ECM proteins (liver fibrosis). Comprehensive characterization of the human ECM molecular composition is essential for gaining insights into the mechanisms of liver disease. To date, studies of ECM remodeling in human liver diseases have been hampered by the unavailability of purified ECM. Here, we developed a decellularization method to purify ECM scaffolds from human liver tissues. Histological and electron microscopy analyses demonstrated that the ECM scaffolds, devoid of plasma and cellular components, preserved the three-dimensional ECM structure and zonal distribution of ECM components. This method has been then applied on 57 liver biopsies of HCV-infected patients at different stages of liver fibrosis according to METAVIR classification. Label-free nLC-MS/MS proteomics and computation biology were performed to analyze the ECM molecular composition in liver fibrosis progression, thus unveiling protein expression signatures specific for the HCV-related liver fibrotic stages. In particular, the ECM molecular composition of liver fibrosis was found to involve dynamic changes in matrix stiffness, flexibility and density related to the dysregulation of predominant collagen, elastic fibers and minor components with both structural and signaling properties. This study contributes to the understanding of the molecular bases underlying ECM remodeling in liver fibrosis and suggests new molecular targets for fibrolytic strategies.
- Published
- 2016
- Full Text
- View/download PDF
54. Implementing a Digital Strategy: Learning from the Experience of Three Digital Transformation Projects
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Alessia Correani, Alfredo Vittorio De Massis, Antonio Messeni Petruzzelli, Angelo Natalicchio, and Federico Frattini
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Strategy implementation ,Digital transformation, digital strategy, strategy implementation ,Engineering management ,strategy implementation ,Digital strategy ,Computer science ,Strategy and Management ,0502 economics and business ,05 social sciences ,Digital transformation ,digital transformation ,digital strategy ,050203 business & management - Abstract
The rapid growth of digital technologies and the extraordinary amount of data that devices and applications collect each day are increasingly driving companies to radically transform the business architecture through which they create and appropriate value. However, companies may fail to extract value from digital transformation due to the disconnection between strategy formulation and strategy implementation. Through the analysis of three case studies of firms that digitally transformed their business—namely ABB, CNH Industrial, and Vodafone—this article presents a framework than can help companies implement their digital transformation strategy and thereby renovate their business model.
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- 2020
- Full Text
- View/download PDF
55. DHA turnover in pregnant women using the natural abundance variation of 13C: a pilot study
- Author
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Manuela Simonato, Silvia Visentin, Giovanna Verlato, Erich Cosmi, Alessio Correani, Paola Cogo, and Virgilio Paolo Carnielli
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DHA ,Nutrition and Dietetics ,carbon 13 natural abundance ,isotope ratio mass spectrometer ,metabolism ,omega 3 supplementation ,pregnancy ,Medicine (miscellaneous) - Abstract
The importance of DHA to support fetal development and maternal health is well established. In this study, we applied the natural abundance approach to determine the contribution of 200 mg/d of DHA supplement to the plasma DHA pool in nineteen healthy pregnant women. Women received DHA, from week 20 until delivery, from an algal source (n 13, Algae group) or from fish oil (n 6, Fish group) with slightly different content of 13C. We measured plasma phospholipids DHA 13C:12C ratio (reported as δ13C) prior to supplementation (T0), after 10 (T1) and 90 days (T2) and prior to delivery (T3). The δ13C of DHA in algae and fish supplements were −15·8 (sd 0·2) mUr and −25·3 (sd 0·2) mUr (P < 0·001). DHA δ13C in the Algae group increased from −27·7 (sd 1·6) mUr (T0) to −21·9 (sd 2·2) mUr (T3) (P < 0·001), whereas there were not significant changes in the Fish group (–27·8 (sd 0·9) mUr at T0 and −27·3 (sd 1·1) mUr at T3, P = 0·09). In the Algae group, 200 mg/d of DHA contributed to the plasma phospholipid pool by a median value of 53 % (31–75 % minimum and maximum). This estimation was not possible in the Fish group. Our results demonstrate the feasibility of assessing the contribution of DHA from an algal source to the plasma DHA pool in pregnant women by the natural abundance approach. Plasma δ13C DHA did not change when consuming DHA of fish origin, with almost the same δ13C value of that of the pre-supplementation plasma δ13C DHA.
- Published
- 2022
56. Does the Nature of Goods Affect Bilateral Exchange of Technology and Location Choice in Stable Networks?
- Author
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Luca Correani, Fabio Di Dio, and Patrizio Morganti
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Economics and Econometrics - Published
- 2022
57. Who needs a second dose of exogenous surfactant?
- Author
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L. Lanciotti, M. Pasqualini, A. Correani, V.G. Dell'Orto, I. Burattini, C. Giorgetti, S. Colombo, M.L. Palazzi, and V. Carnielli
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Obstetrics and Gynecology - Published
- 2023
- Full Text
- View/download PDF
58. Impact of small for gestational age and bronchopulmonary dysplasia on neurodevelopment at 2 years in preterm infants of less than 32 weeks
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A. Correani, M. Palazzo, L. Lanciotti, R. D'Ascenzo, C. Biagetti, I. Burattini, and V. Carnielli
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Obstetrics and Gynecology - Published
- 2023
- Full Text
- View/download PDF
59. Automatic inspection-based support for obtaining usable Web sites for vision-impaired users.
- Author
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Francesco Correani, Barbara Leporini, and Fabio Paternò
- Published
- 2006
- Full Text
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60. Is low cerebral near infrared spectroscopy oximetry associated with neurodevelopment of preterm infants without brain injury?
- Author
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Tombolini, Stefano, primary, De Angelis, Flavia, additional, Correani, Alessio, additional, Marchionni, Paolo, additional, Monachesi, Chiara, additional, Ferretti, Enrica, additional, Staffolani, Francesca, additional, D’Ascenzo, Rita, additional, and Carnielli, Virgilio, additional
- Published
- 2022
- Full Text
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61. Deuterium‐depleted water: A new tracer to label pulmonary surfactant lipids in adult rabbits
- Author
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Simonato, Manuela, primary, Ricci, Francesca, additional, Catozzi, Chiara, additional, Storti, Matteo, additional, Giambelluca, Sonia, additional, Correani, Alessio, additional, Salomone, Fabrizio, additional, Cogo, Paola, additional, and Carnielli, Virgilio, additional
- Published
- 2022
- Full Text
- View/download PDF
62. DHA turnover in pregnant women using the natural abundance variation of 13C: a pilot study.
- Author
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Simonato, Manuela, Visentin, Silvia, Verlato, Giovanna, Cosmi, Erich, Correani, Alessio, Cogo, Paola, and Carnielli, Virgilio Paolo
- Subjects
DOCOSAHEXAENOIC acid ,PILOT projects ,PREGNANT women ,FETAL development ,DIETARY supplements ,CHILD health services ,FISHES ,DESCRIPTIVE statistics ,PHOSPHOLIPIDS ,ALGAE ,ISOTOPES ,PREGNANCY - Abstract
The importance of DHA to support fetal development and maternal health is well established. In this study, we applied the natural abundance approach to determine the contribution of 200 mg/d of DHA supplement to the plasma DHA pool in nineteen healthy pregnant women. Women received DHA, from week 20 until delivery, from an algal source (n 13, Algae group) or from fish oil (n 6, Fish group) with slightly different content of
13 C. We measured plasma phospholipids DHA13 C:12 C ratio (reported as δ13 C) prior to supplementation (T0), after 10 (T1) and 90 days (T2) and prior to delivery (T3). The δ13 C of DHA in algae and fish supplements were −15·8 (sd 0·2) mUr and −25·3 (sd 0·2) mUr (P < 0·001). DHA δ13 C in the Algae group increased from −27·7 (sd 1·6) mUr (T0) to −21·9 (sd 2·2) mUr (T3) (P < 0·001), whereas there were not significant changes in the Fish group (–27·8 (sd 0·9) mUr at T0 and −27·3 (sd 1·1) mUr at T3, P = 0·09). In the Algae group, 200 mg/d of DHA contributed to the plasma phospholipid pool by a median value of 53 % (31–75 % minimum and maximum). This estimation was not possible in the Fish group. Our results demonstrate the feasibility of assessing the contribution of DHA from an algal source to the plasma DHA pool in pregnant women by the natural abundance approach. Plasma δ13 C DHA did not change when consuming DHA of fish origin, with almost the same δ13 C value of that of the pre-supplementation plasma δ13 C DHA. [ABSTRACT FROM AUTHOR]- Published
- 2023
- Full Text
- View/download PDF
63. Is low cerebral near infrared spectroscopy oximetry associated with neurodevelopment of preterm infants without brain injury?
- Author
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Stefano Tombolini, Flavia De Angelis, Alessio Correani, Paolo Marchionni, Chiara Monachesi, Enrica Ferretti, Francesca Staffolani, Rita D’Ascenzo, and Virgilio Carnielli
- Subjects
Spectroscopy, Near-Infrared ,Infant, Newborn ,Obstetrics and Gynecology ,Brain ,Infant ,Hemorrhage ,Oxygen ,Brain Injuries ,Cerebrovascular Circulation ,Pediatrics, Perinatology and Child Health ,Humans ,Oximetry ,Infant, Premature ,Retrospective Studies - Abstract
Objectives To evaluate the association between low regional cerebral oxygen saturation (rScO2) and neurodevelopment in preterm infants classified as no brain injury (NBI). Methods We retrospectively reviewed data of rScO2 monitoring during the first 3 days of life of infants with a gestational age (GA)>10H) and the 24 months neurodevelopment. Results Of the 185 patients who met the inclusion criteria, 31% were classified as BI infants and 69% NBI. BI compared to NBI infants had a significantly lower GA and a higher incidence of complications of prematurity. Mean rScO2 in the first 72 h of life was significantly lower in BI than NBI. NIRS>10H in NBI patients was negatively associated with neurodevelopmental scores both at the univariate and multivariate analysis (p>10H were found to have lower systemic oxygenation than their counterparts with rScO2 Conclusions NIRS>10H in NBI small preterm infants was found to be an independent predictor of neurodevelopment at 24 months and it was associated with low systemic saturation values.
- Published
- 2021
64. Early nasal continuous positive airway pressure failure prediction in preterm infants less than 32 weeks gestational age suffering from respiratory distress syndrome
- Author
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Ilaria Giretti, Valentina Dell'Orto, Maria Laura Palazzi, Ilaria Burattini, Virgilio P. Carnielli, Stefano Nobile, Clementina Rondina, Paolo Marchionni, and Alessio Correani
- Subjects
Pulmonary and Respiratory Medicine ,Pediatrics ,medicine.medical_specialty ,Neonatal respiratory distress syndrome ,Neonatal intensive care unit ,medicine.medical_treatment ,Birth weight ,surfactant ,Gestational Age ,premature ,newborn ,Pregnancy ,Fraction of inspired oxygen ,medicine ,Humans ,Continuous positive airway pressure ,Retrospective Studies ,Mechanical ventilation ,Respiratory Distress Syndrome ,Respiratory Distress Syndrome, Newborn ,Respiratory distress ,Continuous Positive Airway Pressure ,business.industry ,Infant, Newborn ,Gestational age ,Infant ,medicine.disease ,nervous system diseases ,respiratory tract diseases ,Settore MED/38 - PEDIATRIA GENERALE E SPECIALISTICA ,Pediatrics, Perinatology and Child Health ,Female ,business ,therapeutics ,Infant, Premature ,circulatory and respiratory physiology - Abstract
BACKGROUND Early continuous positive airway pressure (CPAP) and surfactant replacement are effective treatments for neonatal respiratory distress syndrome (RDS). CPAP is the first line in preterm infants needing respiratory support, with surfactant replacement in case of CPAP failure (CPAP-F). OBJECTIVES To analyze incidence and factors associated with CPAP-F in preterm infants with RDS. DESIGN, SETTING AND PATIENTS Single-center retrospective database analysis (2004-2017) of inborn infants, gestational age (GA) 24 + 0/7-31 + 6/7 weeks, not intubated on admission to the neonatal intensive care unit, managed with CPAP. CPAP-F was defined as intubation and surfactant administration in the first 72 h of life; CPAP success (CPAP-S) was CPAP alone without need for additional RDS treatments. Demographic, respiratory, and clinical data associated with CPAP-F were studied using logistic regression analysis. RESULTS A total of 562 infants met the inclusion criteria: 252 (44.8%) were CPAP-F and 310 (55.2%) were CPAP-S. The CPAP-F, compared to CPAP-S group, had lower GA and birth weight, and were less likely to receive antenatal steroids or to be vaginal births. Logistic regression showed that the fraction of inspired oxygen (FiO2 ) ≥ 0.23 between 180 and 240 min of life (FiO2 180-240 min) was the strongest factor associated with CPAP-F (odds ratio: 16.01 [95% confidence interval: 10.34-24.81]). CONCLUSION FiO2 180-240 min was highly predictive of CPAP-F in preterm infants. With this model for surfactant administration/CPAP-F, 11.2% of infants would have unnecessarily received treatment, but importantly, 27.7% would have been treated much earlier, with a potential reduction in air leaks and duration of mechanical ventilation.
- Published
- 2021
65. Perioperative Glial Fibrillary Acidic Protein Is Associated with Long-Term Neurodevelopment Outcome of Infants with Congenital Heart Disease
- Author
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Luca Vedovelli, Massimo A. Padalino, Paola Cogo, Valentina Tonazzo, Dario Gregori, Manuela Simonato, Elisa Cainelli, Michela Vergine, and Alessio Correani
- Subjects
medicine.medical_specialty ,Heart disease ,neuropsychological outcome ,030204 cardiovascular system & hematology ,Logistic regression ,Pediatrics ,Article ,RJ1-570 ,law.invention ,03 medical and health sciences ,0302 clinical medicine ,children ,law ,Internal medicine ,medicine ,Cardiopulmonary bypass ,Intelligence quotient ,Glial fibrillary acidic protein ,biology ,business.industry ,Neuropsychology ,Perioperative ,medicine.disease ,congenital heart disease ,Children ,Congenital heart disease ,Neuropsychological outcome ,glial fibrillary acidic protein ,Pediatrics, Perinatology and Child Health ,biology.protein ,Cardiology ,business ,cardiopulmonary bypass ,030217 neurology & neurosurgery ,Psychopathology - Abstract
Background: Brain injury, impaired brain maturation, and long-term neurodevelopmental disorders are common in infants with congenital heart diseases (CHD). We aimed to assess whether plasma glial fibrillary acidic protein (GFAP) can predict neurodevelopmental anomalies in CHD infants operated on cardiopulmonary bypass (CPB). Methods: We measured plasma GFAP in 38 infants at multiple CPB phases. Cognitive, neuropsychological, and psychopathological functioning were assessed 5.7 ± 2.2 years after surgery. We identified an impaired global neurodevelopmental index (NDI) when at least two domains were abnormal. The relationships between NDI, GFAP, and clinical variables were explored with non-supervised feature selection methods and modeled with a nested non-linear logistic regression. Results: Intelligence quotient scores were within the normal range in 84% of children, whereas 58% showed an abnormal NDI, with the greatest impairments in the psychopathological area. The plasma GFAP peak was 0.95 (0.44–1.57) ng/mL, and it was correlated with age, weight, duration of surgery phases, and CPB minimum temperature. In the regression model, the GFAP peak was associated with an impaired NDI with a possible flexible point toward NDI impairment at 0.49 ng/mL, keeping constant ICU stay, CPB duration, CHD anatomy, weight, and CPB minimum temperature. Conclusion: GFAP is a promising early marker of abnormal long-term neuropsychological development.
- Published
- 2021
- Full Text
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66. Early nasal continuous positive airway pressure failure prediction in preterm infants less than 32 weeks gestational age suffering from respiratory distress syndrome
- Author
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Dell'Orto, Valentina, primary, Nobile, Stefano, additional, Correani, Alessio, additional, Marchionni, Paolo, additional, Giretti, Ilaria, additional, Rondina, Clementina, additional, Burattini, Ilaria, additional, Palazzi, Maria L., additional, and Carnielli, Virgilio P., additional
- Published
- 2021
- Full Text
- View/download PDF
67. R&D networks and absorptive capacity in a Salop model
- Author
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Fabio Di Dio and Luca Correani
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Oligopoly ,Microeconomics ,Economics and Econometrics ,Incentive ,Absorptive capacity ,0502 economics and business ,05 social sciences ,Economics ,Network structure ,Social Welfare ,050207 economics ,050205 econometrics - Abstract
The paper investigates the incentives of Salop-type oligopolistic firms to cooperate and the architecture of the resulting collaboration networks. We find that when spillovers are exogenous, firm profits are not affected by the network structure. On the contrary, with endogenous spillovers (absorptive capacity) firms tend to form less dense networks. We also seek out the architecture of socially efficient networks, showing that social welfare is maximised in the complete network. Also, given the network structure we conclude that a Salop industry could be characterized by a general tendency to under-connection.
- Published
- 2019
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68. Amniotic membrane-derived mesenchymal cells and their conditioned media: potential candidates for uterine regenerative therapy in the horse.
- Author
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Bruna Corradetti, Alessio Correani, Alessio Romaldini, Maria Giovanna Marini, Davide Bizzaro, Claudia Perrini, Fausto Cremonesi, and Anna Lange-Consiglio
- Subjects
Medicine ,Science - Abstract
Amniotic membrane-derived mesenchymal cells (AMCs) are considered suitable candidates for a variety of cell-based applications. In view of cell therapy application in uterine pathologies, we studied AMCs in comparison to cells isolated from the endometrium of mares at diestrus (EDCs) being the endometrium during diestrus and early pregnancy similar from a hormonal standpoint. In particular, we demonstrated that amnion tissue fragments (AM) shares the same transcriptional profile with endometrial tissue fragments (ED), expressing genes involved in early pregnancy (AbdB-like Hoxa genes), pre-implantation conceptus development (Erα, PR, PGRMC1 and mPR) and their regulators (Wnt7a, Wnt4a). Soon after the isolation, only AMCs express Wnt4a and Wnt7a. Interestingly, the expression levels of prostaglandin-endoperoxide synthase 2 (PTGS2) were found greater in AM and AMCs than their endometrial counterparts thus confirming the role of AMCs as mediators of inflammation. The expression of nuclear progesterone receptor (PR), membrane-bound intracellular progesterone receptor component 1 (PGRMC1) and membrane-bound intracellular progesterone receptor (mPR), known to lead to improved endometrial receptivity, was maintained in AMCs over 5 passages in vitro when the media was supplemented with progesterone. To further explore the potential of AMCs in endometrial regeneration, their capacity to support resident cell proliferation was assessed by co-culturing them with EDCs in a transwell system or culturing in the presence of AMC-conditioned medium (AMC-CM). A significant increase in EDC proliferation rate exhibited the crucial role of soluble factors as mediators of stem cells action. The present investigation revealed that AMCs, as well as their derived conditioned media, have the potential to improve endometrial cell replenishment when low proliferation is associated to pregnancy failure. These findings make AMCs suitable candidates for the treatment of endometrosis in mares.
- Published
- 2014
- Full Text
- View/download PDF
69. Perioperative Glial Fibrillary Acidic Protein Is Associated with Long-Term Neurodevelopment Outcome of Infants with Congenital Heart Disease
- Author
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Vergine, Michela, primary, Vedovelli, Luca, additional, Simonato, Manuela, additional, Tonazzo, Valentina, additional, Correani, Alessio, additional, Cainelli, Elisa, additional, Gregori, Dario, additional, Padalino, Massimo A., additional, and Cogo, Paola, additional
- Published
- 2021
- Full Text
- View/download PDF
70. Blood urea in preterm infants on routine parenteral nutrition: A multiple linear regression analysis
- Author
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Rita D'Ascenzo, Virgilio P. Carnielli, Luca Antognoli, Maria Paola Bellagamba, Paola Cogo, Chiara Monachesi, Chiara Biagetti, Ilaria Giretti, Ilaria Burattini, Paolo Marchionni, and Alessio Correani
- Subjects
Male ,0301 basic medicine ,Birth weight ,Physiology ,Gestational Age ,030209 endocrinology & metabolism ,Critical Care and Intensive Care Medicine ,Eating ,03 medical and health sciences ,chemistry.chemical_compound ,0302 clinical medicine ,medicine.artery ,Blood urea ,Birth Weight ,Humans ,Urea ,Medicine ,Amino Acids ,Infant Nutritional Physiological Phenomena ,Ductus Arteriosus, Patent ,Respiratory Distress Syndrome, Newborn ,030109 nutrition & dietetics ,Nutrition and Dietetics ,Respiratory distress ,business.industry ,Weight change ,Infant, Newborn ,Gestational age ,Preterm infants ,Umbilical artery ,medicine.disease ,Parenteral nutrition ,Amino acid ,chemistry ,Creatinine ,Infant, Small for Gestational Age ,Multivariate Analysis ,Linear Models ,Small for gestational age ,Female ,business ,Infant, Premature - Abstract
Summary Background Blood urea is considered a marker of amino acid utilization in preterm infants on routine parenteral nutrition. However, the association between blood urea and intravenous amino acid intake remains debated. Aims To evaluate the association between blood urea and both nutrition and clinical data, in a large cohort of preterm infants. Methods Consecutively admitted preterm infants with a gestational age of less than 32 weeks and a birth weight lower than 1250 g on routine parenteral nutrition from the first hour of life were studied. Clinical and nutrition data collected hourly during the hospitalization were used in multiple linear regression analysis. Results We studied 674 patients and 1863 blood urea determinations. Blood urea concentration was positively associated with blood creatinine concentration, intravenous amino acid intake, patent ductus arteriosus and respiratory distress syndrome, and negatively associated with intravenous non-protein energy intakes, daily weight change, gestational age, being small for gestational age, antenatal steroids therapy and reverse flow in the umbilical artery (p Conclusions From a nutrition perspective, in our large cohort of small preterm infants blood urea was positively correlated with intravenous amino acid intake and negatively correlated with intravenous non-protein energy intake. This is in line with current knowledge in human physiology and suggest that a reduction of intravenous amino acid intake based on blood urea concentrations was justified.
- Published
- 2021
71. Early nasal continuous positive airway pressure failure prediction in preterm infants less than 32 weeks gestational age suffering from respiratory distress syndrome
- Author
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Dell'Orto, Valentina, Nobile, Stefano, Correani, Alessio, Marchionni, Paolo, Giretti, Ilaria, Rondina, Clementina, Burattini, Ilaria, L Palazzi, Maria, P Carnielli, Virgilio, Stefano Nobile (ORCID:0000-0002-5304-1485), Dell'Orto, Valentina, Nobile, Stefano, Correani, Alessio, Marchionni, Paolo, Giretti, Ilaria, Rondina, Clementina, Burattini, Ilaria, L Palazzi, Maria, P Carnielli, Virgilio, and Stefano Nobile (ORCID:0000-0002-5304-1485)
- Abstract
Background: Early continuous positive airway pressure (CPAP) and surfactant replacement are effective treatments for neonatal respiratory distress syndrome (RDS). CPAP is the first line in preterm infants needing respiratory support, with surfactant replacement in case of CPAP failure (CPAP-F). Objectives: To analyze incidence and factors associated with CPAP-F in preterm infants with RDS. Design, Setting and Patients: Single-center retrospective database analysis (2004–2017) of inborn infants, gestational age (GA) 24 + 0/7–31 + 6/7 weeks, not intubated on admission to the neonatal intensive care unit, managed with CPAP. CPAP-F was defined as intubation and surfactant administration in the first 72 h of life; CPAP success (CPAP-S) was CPAP alone without need for additional RDS treatments. Demographic, respiratory, and clinical data associated with CPAP-F were studied using logistic regression analysis. Results: A total of 562 infants met the inclusion criteria: 252 (44.8%) were CPAP-F and 310 (55.2%) were CPAP-S. The CPAP-F, compared to CPAP-S group, had lower GA and birth weight, and were less likely to receive antenatal steroids or to be vaginal births. Logistic regression showed that the fraction of inspired oxygen (FiO2) ≥ 0.23 between 180 and 240 min of life (FiO2 180–240 min) was the strongest factor associated with CPAP-F (odds ratio: 16.01 [95% confidence interval: 10.34–24.81]). Conclusion: FiO2 180–240 min was highly predictive of CPAP-F in preterm infants. With this model for surfactant administration/CPAP-F, 11.2% of infants would have unnecessarily received treatment, but importantly, 27.7% would have been treated much earlier, with a potential reduction in air leaks and duration of mechanical ventilation.
- Published
- 2021
72. Growth and social capital: an evolutionary model
- Author
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Correani, Luca, Di Dio, Fabio, and Garofalo, Giuseppe
- Published
- 2011
- Full Text
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73. Hypertriglyceridemia and lipid tolerance in preterm infants with a birth weight of less than 1250 g on routine parenteral nutrition
- Author
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Giretti, Ilaria, primary, D'Ascenzo, Rita, additional, Correani, Alessio, additional, Antognoli, Luca, additional, Monachesi, Chiara, additional, Biagetti, Chiara, additional, Pompilio, Adriana, additional, Marinelli, Luisita, additional, Burattini, Ilaria, additional, Cogo, Paola, additional, and Carnielli, Virgilio P., additional
- Published
- 2021
- Full Text
- View/download PDF
74. Is intravenous fish oil associated with the neurodevelopment of extremely low birth weight preterm infants on parenteral nutrition?
- Author
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Biagetti, Chiara, primary, Correani, Alessio, additional, D'Ascenzo, Rita, additional, Ferretti, Enrica, additional, Proietti, Cecilia, additional, Antognoli, Luca, additional, Giretti, Ilaria, additional, Pompilio, Adriana, additional, Cogo, Paola, additional, and Carnielli, Virgilio P., additional
- Published
- 2021
- Full Text
- View/download PDF
75. Is intravenous fish oil associated with the neurodevelopment of extremely low birth weight preterm infants on parenteral nutrition?
- Author
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Enrica Ferretti, Chiara Biagetti, Cecilia Proietti, Adriana Pompilio, Luca Antognoli, Rita D'Ascenzo, Paola Cogo, Alessio Correani, Virgilio P. Carnielli, and Ilaria Giretti
- Subjects
0301 basic medicine ,Central Nervous System ,Pediatrics ,medicine.medical_specialty ,Parenteral Nutrition ,Birth weight ,Neurodevelopment ,030209 endocrinology & metabolism ,Fish oil ,Critical Care and Intensive Care Medicine ,law.invention ,03 medical and health sciences ,0302 clinical medicine ,Child Development ,Fish Oils ,Randomized controlled trial ,law ,Lipid emulsion ,Omega-3 fatty acids ,medicine ,Humans ,Retrospective Studies ,030109 nutrition & dietetics ,Nutrition and Dietetics ,business.industry ,Incidence (epidemiology) ,Infant, Newborn ,Preterm infants ,Gestational age ,Parenteral nutrition ,Low birth weight ,Docosahexaenoic acid ,Infant, Extremely Low Birth Weight ,medicine.symptom ,business ,Infant, Premature - Abstract
Summary Background & aims Preterm infants are at increased risk of long-term neurodevelopmental disabilities (NDD). Long chain n-3 fatty acids play a key role during the development of the central nervous system and some studies in preterm infants showed benefits of docosahexaenoic acid and arachidonic acid supplementation for visual and cognitive development. In recent years fish oil has been added to the fat blend of intravenous (IV) lipid emulsions (LE) but to date scanty data are available on neurodevelopmental outcome of preterm infants that received fish oil containing LE. We studied the effect of fish oil containing IV LE vs standard IV LE on neurodevelopment in a large cohort of preterm infants who received routine parenteral nutrition (PN) from birth. Methods We retrospectively reviewed the neurodevelopmental outcome of 477 preterm infants (birth weight (BW): 400–1249 g and gestational age (GA) at birth: 24+0 - 35+6 weeks (W)) admitted to our NICU between Oct-2008 and June-2017, who received routine PN with different LE, with and without fish oil (IV-FO vs CNTR). We compared neurodevelopment at 2 years corrected age by the Bayley III development scale and the incidence of NDD. Results Demographics, birth data and the incidence of the main clinical short-term outcomes of prematurity were similar in the two groups (IV-FO: n = 178, GA 197 ± 14 days, BW 931 ± 182 g; CNTR: n = 192, GA 198 ± 15 days, BW 944 ± 194 g). No differences were found in maternal demographics nor in parental education between the two groups. Cognitive score was not significantly different between IV-FO and CNTR (92 ± 15 vs 93 ± 13, p = 0.5). No differences were found in motor and language scores, and in the incidence of NDD in the two groups. Conclusions Contrary to our hypothesis, the use of fish oil containing LE in a large cohort of preterm infants on routine PN did not result in better neurodevelopment. Large randomized controlled trials powered for neurodevelopment are needed to clarify the impact of the widely used fish oil containing LE on neurodevelopment of preterm infants.
- Published
- 2020
76. Practice of Parenteral Nutrition in Preterm Infants
- Author
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Virgilio Paolo, Carnielli, Alessio, Correani, Ilaria, Giretti, Rita, D Apos Ascenzo, Maria Paola, Bellagamba, Ilaria, Burattini, and Chiara, Biagetti
- Subjects
Parenteral Nutrition ,Infant, Newborn ,Humans ,Infant ,Parenteral Nutrition, Total ,Infant, Premature - Published
- 2020
77. Hypertriglyceridemia and lipid tolerance in preterm infants with a birth weight of less than 1250 g on routine parenteral nutrition
- Author
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Ilaria Giretti, Chiara Monachesi, Luisita Marinelli, Ilaria Burattini, Chiara Biagetti, Virgilio P. Carnielli, Paola Cogo, Adriana Pompilio, Luca Antognoli, Rita D'Ascenzo, and Alessio Correani
- Subjects
0301 basic medicine ,Male ,medicine.medical_specialty ,Fat Emulsions, Intravenous ,Parenteral Nutrition ,Birth weight ,030209 endocrinology & metabolism ,Gestational Age ,Infant, Premature, Diseases ,Critical Care and Intensive Care Medicine ,Gastroenterology ,03 medical and health sciences ,0302 clinical medicine ,Internal medicine ,medicine ,Birth Weight ,Humans ,Infant, Very Low Birth Weight ,Major complication ,Hypertriglyceridemia ,Lipid metabolism ,Parenteral nutrition ,Preterm infants ,Triglycerides ,Retrospective Studies ,030109 nutrition & dietetics ,Nutrition and Dietetics ,business.industry ,Incidence ,Infant, Newborn ,Gestational age ,medicine.disease ,Gestation ,lipids (amino acids, peptides, and proteins) ,Female ,business ,Infant, Premature - Abstract
Summary Objectives To study the association of hypertriglyceridemia and of lipid tolerance with clinical and nutritional data in preterm infants receiving routine parenteral nutrition. Design We retrospectively studied 672 preterm infants (gestational age 250 mg⋅dL−1. Lipid tolerance was defined as the ratio of plasma triglycerides to the intravenous lipid intake at the time of sampling. Variables associated to hypertriglyceridemia and to lipid tolerance were identified by multiple logistic and linear regression analyses. Results Hypertriglyceridemia occurred in 200 preterm infants (30%), ranging from 67% at 23 weeks to 16% at 31 weeks' gestation. In 138 infants (69%) hypertriglyceridemia occurred at a lipid intake of 2.5 g⋅kg−1 or less. Lipid tolerance was reduced especially in infants of less than 28 weeks’ gestation (14.3 ± 9.3 vs 18.8 ± 10.2, respectively, p Conclusion Preterm infants on routine parenteral nutrition were able to tolerate markedly lower intravenous lipid intakes than the recommended target values of current guidelines. Lipid tolerance was associated with some of the major complication of prematurity, possibly at risk of developing hypertriglyceridemia.
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- 2020
78. Variability in Probiotic Formulations Revealed by Proteomics and Physico-chemistry Approach in Relation to the Gut Permeability
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Virginia Correani, Stefano Fiorucci, Hary Razafindralambo, and Benedetta Mattei
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0301 basic medicine ,Proteome ,030106 microbiology ,Intestinal permeability ,Proteomics ,Inbred C57BL ,Microbiology ,Multistrain probiotics ,Permeability ,law.invention ,03 medical and health sciences ,Probiotic ,Mice ,law ,Gut permeability ,medicine ,Animals ,Food science ,Intestinal Mucosa ,Thermal decomposition ,Molecular Biology ,Colloidal properties ,Transition phase ,Differential modulation ,Gut barrier ,Quality assessment ,Chemistry ,Probiotics ,medicine.disease ,Process conditions ,Mice, Inbred C57BL ,030104 developmental biology ,Molecular Medicine - Abstract
Variability in the efficacy, safety, and quality of probiotic formulations depends on many factors, including process conditions used by manufacturers. Developing reliable analytical tools is therefore essential to quickly monitor manufacturing differences in probiotic samples for their quality assessment. Here, multi-strain probiotics from two production sites and countries were investigated by proteomics and physico-chemistry approaches in relation to the protective effect on gut barrier. Proteomic analyses showed differences in protein abundances, identities, and origins of two series of VSL#3 samples from different sites. Even though both formulations were qualitatively similar in thermal and colloidal profiles, significant differences were quantitatively observed in terms of maximum decomposition temperature Tmax (p
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- 2020
79. Automatic inspection-based support for obtaining usable Web sites for vision-impaired users
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Correani, Francesco, Leporini, Barbara, and Paternò, Fabio
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- 2006
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80. The maternal-fetal gradient of free and esterified phytosterols at the time of delivery in humans
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Eleonora Ponchia, Luca Vedovelli, Alessio Correani, Silvia Visentin, Virgilio P. Carnielli, Paola Cogo, Erich Cosmi, Manuela Simonato, and Sara D'Aronco
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Adult ,Male ,0301 basic medicine ,medicine.medical_specialty ,Campesterol ,Maternal blood ,Lathosterol ,030204 cardiovascular system & hematology ,Critical Care and Intensive Care Medicine ,Term delivery ,Cohort Studies ,03 medical and health sciences ,chemistry.chemical_compound ,0302 clinical medicine ,Obstetrics and gynaecology ,Pregnancy ,Internal medicine ,Humans ,Medicine ,Maternal-Fetal Exchange ,Nutrition and Dietetics ,Stigmasterol ,business.industry ,Cholesterol ,Infant, Newborn ,Phytosterols ,Cord blood ,Human placenta ,Delivery, Obstetric ,Fetal Blood ,medicine.disease ,030104 developmental biology ,Endocrinology ,chemistry ,Female ,lipids (amino acids, peptides, and proteins) ,business - Abstract
High dietary intakes of phytosterols (Phyto), such as those consumed by vegans and vegetarians, are not recommended for cholesterol-lowering in pregnant women (PW) because the safety of their use during pregnancy has not been fully established [1]. Information on Phyto in pregnancy is very limited.To characterize the maternal-fetal gradient of free and esterified Phyto at the time of delivery in humans.PW who had a term delivery at the Obstetrics and Gynecology Unit of the University Hospital of Padua (Padua, Italy), between November 2016 and March 2017, participated in the study. Fatty acids (FA), cholesterol (Chol), Chol metabolites (7-dehydrocholesterol, 7-DHChol; lathosterol, Latho; 7α-hydroxycholesterol, 7α-OHChol), and Phyto (campesterol, Camp; stigmasterol, Stigma; sitosterol, Sito) were measured in both maternal (MB) and cord blood (CB) at the time of delivery. Non-pregnant adult volunteers (Ref-NA) served as a reference.Thirty-four term PW and 12 Ref-NA signed informed consent and were studied. Plasma total Phyto concentrations in CB were up to 20-fold lower than in MB (p 0.05). Positive and significant correlations were found between total Phyto of MB-CB pairs (p 0.01), and between total FA and Camp of MB (p 0.05). Interestingly, free Chol to Chol ester ratio of CB did not differ from that of MB, and free Phyto to Phyto ester ratios were higher in CB than in MB (p 0.001). No differences were found between Phyto concentrations of MB and Ref-NA. However, free Chol to Chol ester ratio, and free Phyto to Phyto ester ratios were higher in MB than in Ref-NA (p 0.05). Chol synthesis, as indicated by 7-DHChol to 7α-OHChol, Latho to 7α-OHChol, and Latho to Sito ratios, was greatest in CB and lowest in Ref-NA.Our data suggest that free Phyto cross the human placenta more easily than Phyto ester. An elevated Stigma to Chol ratio in CB than in MB was also described for the first time. The impact of these findings on the neonatal outcomes remains to be elucidated.
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- 2018
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81. Implementing a Digital Strategy:Learning from the Experience of Three Digital Transformation Projects
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Correani, A., De Massis, A., Frattini, F., Petruzzelli, A.M., Natalicchio, A., Correani, A., De Massis, A., Frattini, F., Petruzzelli, A.M., and Natalicchio, A.
- Abstract
The rapid growth of digital technologies and the extraordinary amount of data that devices and applications collect each day are increasingly driving companies to radically transform the business architecture through which they create and appropriate value. However, companies may fail to extract value from digital transformation due to the disconnection between strategy formulation and strategy implementation. Through the analysis of three case studies of firms that digitally transformed their business - namely ABB, CNH Industrial, and Vodafone -, this article presents a framework than can help companies implement their digital transformation strategy and thereby renovate their business model.
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- 2020
82. Implementing a Digital Strategy : Learning from the Experience of Three Digital Transformation Projects
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Correani, A., De Massis, A., Frattini, F., Petruzzelli, A.M., Natalicchio, A., Correani, A., De Massis, A., Frattini, F., Petruzzelli, A.M., and Natalicchio, A.
- Abstract
The rapid growth of digital technologies and the extraordinary amount of data that devices and applications collect each day are increasingly driving companies to radically transform the business architecture through which they create and appropriate value. However, companies may fail to extract value from digital transformation due to the disconnection between strategy formulation and strategy implementation. Through the analysis of three case studies of firms that digitally transformed their business - namely ABB, CNH Industrial, and Vodafone -, this article presents a framework than can help companies implement their digital transformation strategy and thereby renovate their business model.
- Published
- 2020
83. Oxygen saturation to fraction of inspired oxygen ratio in preterm infants on routine parenteral nutrition with conventional or fish oil containing lipid emulsions
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Correani, Alessio, Dell'Orto, Valentina, Nobile, Stefano, Antognoli, Luca, Marchionni, Paolo, Giretti, Ilaria, Monachesi, Chiara, Rondina, Clementina, Laura Palazzi, Maria, Biagetti, Chiara, D'Ascenzo, Rita, Pompilio, Adriana, Simonato, Manuela, Cogo, Paola, Burattini, Ilaria, P Carnielli, Virgilio, Stefano Nobile (ORCID:0000-0002-5304-1485), Correani, Alessio, Dell'Orto, Valentina, Nobile, Stefano, Antognoli, Luca, Marchionni, Paolo, Giretti, Ilaria, Monachesi, Chiara, Rondina, Clementina, Laura Palazzi, Maria, Biagetti, Chiara, D'Ascenzo, Rita, Pompilio, Adriana, Simonato, Manuela, Cogo, Paola, Burattini, Ilaria, P Carnielli, Virgilio, and Stefano Nobile (ORCID:0000-0002-5304-1485)
- Abstract
Introduction: The benefits of intravenous (IV) fish oil (FO), as a source of n-3 long-chain polyunsaturated fatty acids, on lung growth in preterm infants, remain controversial. Aim: To evaluate if IV FO improves lung growth in small preterm infants on routine parenteral nutrition (PN). Materials and Methods: We retrospectively reviewed prospectively collected data of preterm infants with a birth weight <1250 g who received routine PN from birth. We compared patients who received FO containing IV lipid emulsions with infants who received conventional emulsions (CNTR). The oxygen saturation (SpO2) to a fraction of inspired oxygen (FiO2) ratio (SFR) at 36 weeks (W) of gestation was chosen as the primary outcome variable to assess lung growth. Results: Four hundred and seventy-seven infants were studied: 240 received IV FO and 237 CNTR. While exposure to antenatal glucocorticoids was higher in IV FO group than in CNTR (95 vs 90%, P =.04), there were no differences in birth data, enteral and parenteral nutrition intakes, ventilator supports and drug therapies. The incidence of the most common complications of prematurity at 36 W was not different (bronchopulmonary dysplasia was 27 vs 21% in IV FO vs CNTR infants, P =.1). Weight gain from birth to 36 W was marginally, but significantly, higher (+0.5 g/kg/d, P =.03) in IV FO group vs CNTR. SFR increased from 32 W to 36 W in all study patients (P <.001). IV FO infants had significantly lower SpO2 from 33 W to 35 W (P <.001) and lower (worse) SFR at 36 W (432 ± 57 vs 444 ± 51, P =.026) compared to CNTR. Conclusion: Contrary to our hypothesis, the use of FO containing IV lipid emulsions for the routine PN of the preterm infant did not improve lung growth compared to the infants who received conventional IV lipid emulsions.
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- 2020
84. Estimating the contribution of surfactant replacement therapy to the alveolar pool: An in vivo study based on 13 C natural abundance in rabbits
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M. Simonato, Costanza Casiraghi, Fabrizio Salomone, Alessio Correani, Matteo Storti, Francesca Ricci, Virgilio P. Carnielli, Paola Cogo, and Sonia Giambelluca
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13C natural abundance ,0301 basic medicine ,Abundance (chemistry) ,surfactant ,GC-C-IRMS ,Pilot Projects ,01 natural sciences ,03 medical and health sciences ,RDS ,stable isotope ,Pulmonary surfactant ,In vivo ,medicine ,Animals ,Humans ,Surfactant replacement ,Poractant alfa ,Surfactant replacement therapy ,Isotope-ratio mass spectrometry ,Phospholipids ,Spectroscopy ,Biological Products ,Carbon Isotopes ,030109 nutrition & dietetics ,Chromatography ,Chemistry ,Stable isotope ratio ,010401 analytical chemistry ,Pulmonary Surfactants ,C natural abundance ,Feasibility Studies ,Pulmonary Alveoli ,Rabbits ,0104 chemical sciences ,medicine.drug - Abstract
Variation of the isotopic abundance of selected nutrients and molecules has been used for pharmacological and kinetics studies under the premise that the administered molecule has a different isotopic enrichment from the isotopic background of the recipient subject. The aim of this study is to test the feasibility of assessing the contribution of exogenous surfactant phospholipids to the endogenous alveolar pool in vivo after exogenous surfactant replacement therapy in rabbits. The study consisted in measuring the consistency of 13 C/12 C ratio of disaturated-phosphatidylcholine palmitate (DSPC-PA) in 7 lots of poractant alfa, produced over a year, and among bronchoalveolar lavages of 20 rabbits fed with a standard chow. A pilot study was performed in a rabbit model of lavage-induced surfactant deficiency: 7 control rabbits and 4 treated with exogenous surfactant. The contribution of exogenous surfactant to the alveolar pool was assessed after intra-tracheal administration of 200 mg/kg of poractant alfa. The 13 C content of DSPC-PA was measured by isotope ratio mass spectrometry. The mean DSPC-PA 13 C/12 C ratio of the 7 lots of poractant alfa was -18.8‰ with a SD of 0.1‰ (range: -18.9‰; -18.6‰). The mean 13 C/12 C ratio of surfactant DSPC recovered from the lung lavage of 20 rabbits was -28.8 ± 1.2‰ (range: -31.7‰; -25.7‰). The contribution of exogenous surfactant to the total alveolar surfactant could be calculated in the treated rabbits, and it ranged from 83.9% to 89.6%. This pilot study describes a novel method to measure the contribution of the exogenous surfactant to the alveolar pool. This method is based on the natural variation of 13 C, and therefore it does not require the use of chemically synthetized tracers. This method could be useful in human research and especially in surfactant replacement studies in preterm infants.
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- 2018
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85. Blood urea in preterm infants on routine parenteral nutrition: A multiple linear regression analysis
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Giretti, Ilaria, primary, Correani, Alessio, additional, Antognoli, Luca, additional, Monachesi, Chiara, additional, Marchionni, Paolo, additional, Biagetti, Chiara, additional, Bellagamba, Maria Paola, additional, Cogo, Paola, additional, D'Ascenzo, Rita, additional, Burattini, Ilaria, additional, and Carnielli, Virgilio P., additional
- Published
- 2021
- Full Text
- View/download PDF
86. TERESA: a transformation-based environment for designing and developing multi-device interfaces.
- Author
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Silvia Berti, Francesco Correani, Giulio Mori, Fabio Paternò, and Carmen Santoro
- Published
- 2004
- Full Text
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87. Oxygen saturation to fraction of inspired oxygen ratio in preterm infants on routine parenteral nutrition with conventional or fish oil containing lipid emulsions
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Correani, Alessio, primary, Dell'Orto, Valentina, additional, Nobile, Stefano, additional, Antognoli, Luca, additional, Marchionni, Paolo, additional, Giretti, Ilaria, additional, Monachesi, Chiara, additional, Rondina, Clementina, additional, Palazzi, Maria Laura, additional, Biagetti, Chiara, additional, D'Ascenzo, Rita, additional, Pompilio, Adriana, additional, Simonato, Manuela, additional, Cogo, Paola, additional, Burattini, Ilaria, additional, and Carnielli, Virgilio P., additional
- Published
- 2020
- Full Text
- View/download PDF
88. A Combined Proteomics, Metabolomics and In Vivo Analysis Approach for the Characterization of Probiotics in Large-Scale Production
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Luca Laghi, Laura Bianchi, Benedetta Mattei, Claudia Landi, Daniela Uccelletti, Emily Schifano, Virginia Correani, Bianchi L., Laghi L., Correani V., Schifano E., Landi C., Uccelletti D., and Mattei B.
- Subjects
Functional proteomic ,Proteomics ,0301 basic medicine ,Aging ,Streptococcus thermophilus ,Lactobacillus paracasei ,Microorganism ,Longevity ,030106 microbiology ,ved/biology.organism_classification_rank.species ,lcsh:QR1-502 ,Metabolomic ,Computational biology ,Biology ,Biochemistry ,lcsh:Microbiology ,Article ,law.invention ,03 medical and health sciences ,Probiotic ,caenorhabditis elegans ,Metabolomics ,Bacterial Proteins ,law ,In vivo ,Caenorhabditis elegans ,Functional proteomics ,Oxidative stress ,Probiotic quality assessment ,oxidative stress ,Animals ,Model organism ,Molecular Biology ,Caenorhabditis elegan ,functional proteomics ,ved/biology ,Probiotics ,biology.organism_classification ,probiotic quality assessment, Caenorhabditis elegans, functional proteomics, metabolomics, oxidative stress, aging ,probiotics ,proteomic ,metabolomics ,Lactobacillus ,030104 developmental biology ,Dietary Supplements ,Oxidative stre ,Bifidobacterium ,probiotic quality assessment - Abstract
The manufacturing processes of commercial probiotic strains may be affected in different ways in the attempt to optimize yield, costs, functionality, or stability, influencing gene expression, protein patterns, or metabolic output. Aim of this work is to compare different samples of a high concentration (450 billion bacteria) multispecies (8 strains) formulation produced at two different manufacturing sites, United States of America (US) and Italy (IT), by applying a combination of functional proteomics, metabolomics, and in vivo analyses. Several protein-profile differences were detected between IT- and US-made products, with Lactobacillus paracasei, Streptococcus thermophilus, and Bifidobacteria being the main affected probiotics/microorganisms. Performing proton nuclear magnetic spectroscopy (1H-NMR), some discrepancies in amino acid, lactate, betaine and sucrose concentrations were also reported between the two products. Finally, we investigated the health-promoting and antiaging effects of both products in the model organism Caenorhabditis elegans. The integration of omics platforms with in vivo analysis has emerged as a powerful tool to assess manufacturing procedures.
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- 2020
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89. Quality-improving and cost-reducing strategic alliances
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Di Dio, Fabio, primary and Correani, Luca, additional
- Published
- 2020
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90. A Combined Proteomics, Metabolomics and In Vivo Analysis Approach for the Characterization of Probiotics in Large-Scale Production
- Author
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Bianchi, Laura, primary, Laghi, Luca, additional, Correani, Virginia, additional, Schifano, Emily, additional, Landi, Claudia, additional, Uccelletti, Daniela, additional, and Mattei, Benedetta, additional
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- 2020
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91. A note on link formation and network stability in a Hotelling game
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Fabio Di Dio and Luca Correani
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Degree (graph theory) ,Applied Mathematics ,education ,05 social sciences ,Management Science and Operations Research ,Stability (probability) ,Industrial and Manufacturing Engineering ,Vertical differentiation ,Oligopoly ,Horizontal differentiation ,0502 economics and business ,Econometrics ,050207 economics ,Link formation ,Mathematical economics ,Software ,050205 econometrics ,Mathematics - Abstract
We develop a model to examine the link formation and the stability of networks in a Hotelling-type oligopoly. We find that with two firms, the link formation depends on the degree of vertical differentiation regardless of the degree of horizontal differentiation, while, with a greater number of firms, link formation occurs when firms feature high horizontal differentiation but low vertical differentiation.
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- 2017
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92. Supporting Flexible Development of Multi-device Interfaces
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Correani, Francesco, primary, Mori, Giulio, additional, and Paternò, Fabio, additional
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- 2005
- Full Text
- View/download PDF
93. Supporting Web Usability for Vision Impaired Users
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Correani, Francesco, primary, Leporini, Barbara, additional, and Paternò, Fabio, additional
- Published
- 2004
- Full Text
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94. Tracing exogenous surfactant in vivo in rabbits by the natural variation of 13C
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Umberto Traldi, Francesca Ricci, Luca Vedovelli, Sonia Giambelluca, Virgilio P. Carnielli, Fabrizio Salomone, Paola Cogo, Costanza Casiraghi, Arianna Mersanne, Alessio Correani, Matteo Storti, and Manuela Simonato
- Subjects
13C natural abundance ,Male ,Respiratory distress syndrome ,Lung surfactant ,medicine.medical_treatment ,Stable isotope ,Surfactant replacement therapy ,Endogeny ,Pharmacology ,Surface-Active Agents ,Pulmonary surfactant ,In vivo ,medicine ,Poractant alfa ,Animals ,Continuous positive airway pressure ,Lung ,Phospholipids ,lcsh:RC705-779 ,Biological Products ,Carbon Isotopes ,Respiratory distress ,Dose-Response Relationship, Drug ,Chemistry ,Research ,Pulmonary Surfactants ,lcsh:Diseases of the respiratory system ,respiratory system ,C natural abundance ,Breathing ,Analysis of variance ,Rabbits ,medicine.drug - Abstract
Background Respiratory Distress Syndrome (RDS) is a prematurity-related breathing disorder caused by a quantitative deficiency of pulmonary surfactant. Surfactant replacement therapy is effective for RDS newborns, although treatment failure has been reported. The aim of this study is to trace exogenous surfactant by 13C variation and estimate the amount reaching the lungs at different doses of the drug. Methods Forty-four surfactant-depleted rabbits were obtained by serial bronchoalveolar lavages (BALs), that were merged into a pool (BAL pool) for each animal. Rabbits were in nasal continuous positive airway pressure and treated with 0, 25, 50, 100 or 200 mg/kg of poractant alfa by InSurE. After 90 min, rabbits were depleted again and a new pool (BAL end experiment) was collected. Disaturated-phosphatidylcholine (DSPC) was measured by gas chromatography. DSPC-Palmitic acid (PA) 13C/12C was analyzed by isotope ratio mass spectrometry. One-way non-parametric ANOVA and post-hoc Dunn’s multiple comparison were used to assess differences among experimental groups. Results Based on DSPC-PA 13C/12C in BAL pool and BAL end experiment, the estimated amount of exogenous surfactant ranged from 61 to 87% in dose-dependent way (p
- Published
- 2019
95. Hypertriglyceridemia and Intravenous Lipid Titration During Routine Parenteral Nutrition in Small Preterm Infants
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Rita D'Ascenzo, Ilaria Giretti, Chiara Monachesi, Virgilio P. Carnielli, Alessio Correani, Luca Antognoli, Chiara Biagetti, and Paola Cogo
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Male ,medicine.medical_specialty ,Birth weight ,Gastroenterology ,Internal medicine ,medicine ,Humans ,Infant Nutritional Physiological Phenomena ,Infusions, Intravenous ,Retrospective Studies ,Hypertriglyceridemia ,business.industry ,Case-control study ,Infant, Newborn ,Gestational age ,Hepatology ,Anthropometry ,Infant, Low Birth Weight ,medicine.disease ,Low birth weight ,Parenteral nutrition ,Case-Control Studies ,Pediatrics, Perinatology and Child Health ,Female ,Parenteral Nutrition, Total ,medicine.symptom ,business ,Energy Intake ,Infant, Premature - Abstract
In case of hypertriglyceridemia (HiTG) during parenteral nutrition (PN), the 2018 European Society of Paediatric Gastroenterology, Hepatology and Nutrition guidelines recommend an intravenous (IV) lipid titration, but its consequences in small preterm infants are largely unknown. We compared macronutrient and energy intakes, growth, diseases associated with prematurity, and neurodevelopment in small preterm infants on PN who developed (cases) or did not develop HiTG (controls, CNTR).We retrospectively reviewed data of preterm infants with a birth weight (BW)1250 g consecutively admitted to our neonatal intensive care unit (2004-2016) who received routine PN. HiTG infants were defined by at least 1 triglyceride (TG) measurement250 mg/dL during the first 10 days of life. Patients with and without HiTG were match-paired for BW and gestational age.A total of 658 infants were analyzed and 196 (30%) had HiTG. One hundred thirty-six HiTG patients were matched with 136 CNTR. In the first 10 days of life, IV lipid, non-protein energy and total energy intakes, but not IV amino acids and carbohydrates, were significantly lower in HiTG infants. We found no differences between groups in diseases associated with prematurity. Anthropometry at 36 weeks (W), anthropometry at 2-year (Y) corrected age (CA), and neurodevelopment at 2Y CA were not different.Growth, diseases associated with prematurity, and neurodevelopment at 2Y CA in HiTG infants were similar to CNTR. This occurred despite a statistically significant albeit small reduction in IV lipid and non-protein energy intakes due to a strict TG monitoring and IV lipid titration at TG levels250 mg/dL.
- Published
- 2019
96. R&D Networks and Absorptive Capacity in a Salop model
- Author
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Correani, L and Di Dio, F
- Published
- 2019
97. In vivo Tracing of Pulmonary Exogenous Surfactant by the C-13 Natural Abundance Approach
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Giambelluca, S., Ricci, F., Simonato, M., Luca Vedovelli, Correani, A., Casiraghi, C., Storti, M., Mersanne, A., Cogo, P., Salomone, F., and Carnielli, V. P.
- Published
- 2019
98. Poly(ADP-ribosylated) proteins in β-amyloid peptide-stimulated microglial cells
- Author
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Luciana Mosca, Virginia Correani, Maddalena Grieco, Alessandra Giorgi, M. Eugenia Schininà, Sara Martire, Lisa Beatrice Caruso, Italo Tempera, Maria D'Erme, Giuseppina Mignogna, and Bruno Maras
- Subjects
0301 basic medicine ,Cell Survival ,Poly ADP ribose polymerase ,Poly (ADP-Ribose) Polymerase-1 ,microglia ,NEDD4 ,Biochemistry ,Cell Line ,03 medical and health sciences ,Mice ,0302 clinical medicine ,proteomics ,Ubiquitin ,β-Amyloid peptide ,medicine ,Animals ,parp-1 ,Pharmacology ,Amyloid beta-Peptides ,Microglia ,biology ,Chemistry ,Endoplasmic reticulum ,Neurodegeneration ,medicine.disease ,Peptide Fragments ,Cell biology ,030104 developmental biology ,medicine.anatomical_structure ,030220 oncology & carcinogenesis ,Proteome ,Alzheimer disease ,Unfolded protein response ,biology.protein - Abstract
Amyloid-treated microglia prime and sustain neuroinflammatory processes in the central nervous system activating different signalling pathways inside the cells. Since a key role for PARP-1 has been demonstrated in inflammation and in neurodegeneration, we investigated PARylated proteins in resting and in β-amyloid peptide treated BV2 microglial cells. A total of 1158 proteins were identified by mass spectrometry with 117 specifically modified in the amyloid-treated cells. Intervention of PARylation on the proteome of microglia showed to be widespread in different cellular districts and to affect various cellular pathways, highlighting the role of this dynamic post-translational modification in cellular regulation. Ubiquitination is one of the more enriched pathways, encompassing PARylated proteins like NEDD4, an E3 ubiquitine ligase and USP10, a de-ubiquitinase, both associated with intracellular responses induced by β-amyloid peptide challenge. PARylation of NEDD4 may be involved in the recruiting of this protein to the plasma membrane where it regulates the endocytosis of AMPA receptors, whereas USP10 may be responsible for the increase of p53 levels in amyloid stimulated microglia. Unfolded protein response and Endoplasmic Reticulum Stress pathways, strictly correlated with the Ubiquitination process, also showed enrichment in PARylated proteins. PARylation may thus represent one of the molecular switches responsible for the transition of microglia towards the inflammatory microglia phenotype, a pivotal player in brain diseases including neurodegenerative processes. The establishment of trials with PARP inhibitors to test their efficacy in the containment of neurodegenerative diseases may be envisaged.
- Published
- 2019
99. Collaboration Networks in a Hotelling Game
- Author
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Correani, L and Di Dio, F
- Published
- 2019
100. In vivo tracing of pulmonary exogenous surfactant by 13-C natural abundance approach
- Author
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Giambelluca, S., Ricci, F., Simonato, M., Vedovelli, L., Correani, A., Casiraghi, C., Storti, M., Cogo, P., Salomone, F., and Carnielli, V. P.
- Published
- 2019
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