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Bersani I, Lapergola G, Patacchiola R, D'Adamo E, Stuppia L, de Laurenzi V, Damiani V, Cataldo I, Clemente K, Primavera A, Salomone R, Barbante E, Campi F, Savarese I, Ronci S, Dotta A, Braguglia A, Longo D, Gavilanes DAW, Gazzolo F, Serpero L, Strozzi MC, Maconi A, Cassinari M, Libener R, Gazzolo D. Elevated S100B urine levels predict seizures in infants complicated by perinatal asphyxia and undergoing therapeutic hypothermia. Clin Chem Lab Med 2024; 62:1109-1117. [PMID: 38290722 DOI: 10.1515/cclm-2023-1471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Accepted: 01/23/2024] [Indexed: 02/01/2024]
Abstract
OBJECTIVES Seizures (SZ) are one of the main complications occurring in infants undergoing therapeutic hypothermia (TH) due to perinatal asphyxia (PA) and hypoxic ischemic encephalopathy (HIE). Phenobarbital (PB) is the first-line therapeutic strategy, although data on its potential side-effects need elucidation. We investigated whether: i) PB administration in PA-HIE TH-treated infants affects S100B urine levels, and ii) S100B could be a reliable early predictor of SZ. METHODS We performed a prospective case-control study in 88 PA-HIE TH infants, complicated (n=44) or not (n=44) by SZ requiring PB treatment. S100B urine levels were measured at 11 predetermined monitoring time-points from first void up to 96-h from birth. Standard-of-care monitoring parameters were also recorded. RESULTS S100B significantly increased in the first 24-h independently from HIE severity in the cases who later developed SZ and requested PB treatment. ROC curve analysis showed that S100B, as SZ predictor, at a cut-off of 2.78 μg/L achieved a sensitivity/specificity of 63 and 84 %, positive/negative predictive values of 83 and 64 %. CONCLUSIONS The present results offer additional support to the usefulness of S100B as a trustable diagnostic tool in the clinical daily monitoring of therapeutic and pharmacological procedures in infants complicated by PA-HIE.
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Affiliation(s)
- Iliana Bersani
- Department of Neonatology, Neonatal Intensive Care Unit, Bambino Gesù Children's Hospital, Rome, Italy
| | - Giuseppe Lapergola
- Neonatal Intensive Care Unit, G. d'Annunzio University of Chieti, Chieti, Italy
| | - Roberta Patacchiola
- Neonatal Intensive Care Unit, G. d'Annunzio University of Chieti, Chieti, Italy
| | - Ebe D'Adamo
- Neonatal Intensive Care Unit, G. d'Annunzio University of Chieti, Chieti, Italy
| | - Liborio Stuppia
- Center for Advances Studies and Technology (CAST), G. d'Annunzio University, Chieti, Italy
| | - Vincenzo de Laurenzi
- Center for Advances Studies and Technology (CAST), G. d'Annunzio University, Chieti, Italy
| | - Verena Damiani
- Center for Advances Studies and Technology (CAST), G. d'Annunzio University, Chieti, Italy
| | - Ivana Cataldo
- Laboratory of Clinical Pathology, SS Annunziata Hospital, Chieti, Italy
| | - Katia Clemente
- Laboratory of Clinical Pathology, SS Annunziata Hospital, Chieti, Italy
| | - Adele Primavera
- Neonatal Intensive Care Unit, G. d'Annunzio University of Chieti, Chieti, Italy
| | - Rita Salomone
- Neonatal Intensive Care Unit, G. d'Annunzio University of Chieti, Chieti, Italy
| | - Elisabetta Barbante
- Neonatal Intensive Care Unit, G. d'Annunzio University of Chieti, Chieti, Italy
| | - Francesca Campi
- Department of Neonatology, Neonatal Intensive Care Unit, Bambino Gesù Children's Hospital, Rome, Italy
| | - Immacolata Savarese
- Department of Neonatology, Neonatal Intensive Care Unit, Bambino Gesù Children's Hospital, Rome, Italy
| | - Sara Ronci
- Department of Neonatology, Neonatal Intensive Care Unit, Bambino Gesù Children's Hospital, Rome, Italy
| | - Andrea Dotta
- Department of Neonatology, Neonatal Intensive Care Unit, Bambino Gesù Children's Hospital, Rome, Italy
| | - Annabella Braguglia
- Department of Neonatology, Neonatal Intensive Care Unit, Bambino Gesù Children's Hospital, Rome, Italy
| | - Daniela Longo
- Department of Neonatology, Neonatal Intensive Care Unit, Bambino Gesù Children's Hospital, Rome, Italy
| | - Danilo A W Gavilanes
- Department of Pediatrics and Neonatology, Maastricht University, Maastricht, The Netherlands
| | | | - Laura Serpero
- Department of Maternal, Fetal and Neonatal Medicine, SS Antonio, Biagio and C. Arrigo Hospital, Alessandria, Italy
| | - Maria Chiara Strozzi
- Department of Pediatrics and Neonatology, Ospedale Cardinal Massaia, Asti, Italy
| | - Antonio Maconi
- Social Security Administration Development and Promotion of Scientific Research Unit, SS Antonio, Biagio and C. Arrigo Hospital, Alessandria, Italy
| | - Maurizio Cassinari
- Department of Clinical Biochemistry, Transfusion and Regeneration Medicine Alessandria Hospital, Alessandria, Italy
| | - Roberta Libener
- Department of Clinical Biochemistry, Transfusion and Regeneration Medicine Alessandria Hospital, Alessandria, Italy
| | - Diego Gazzolo
- Neonatal Intensive Care Unit, G. d'Annunzio University of Chieti, Chieti, Italy
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Liparoti S, Salomone R, Speranza V, Pantani R. Morphology Distribution in Injection Molded Parts. Polymers (Basel) 2024; 16:337. [PMID: 38337227 DOI: 10.3390/polym16030337] [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: 01/02/2024] [Revised: 01/23/2024] [Accepted: 01/24/2024] [Indexed: 02/12/2024] Open
Abstract
A more sustainable use of plastic parts makes it necessary to replace current plastic parts with recyclable components, also allowing the modulation of the part properties through the process. Injection molding is one of the most widely used technologies for obtaining rigid plastic parts, so it is crucial to understand how to tailor properties by adopting the correct processing conditions. One way is to perform annealing steps directly inside the mold: in-mold annealing improves the structural integrity and durability of the material, reduces defects, increases the resistance of parts against certain chemicals, reduces wear and tear, increases ductility, and lowers brittleness. In this work, several in-mold annealing steps were conducted, changing the mold temperature and annealing duration selected on the basis of the half crystallization time of the adopted isotactic polypropylene. The typical molded part morphology, composed of oriented layers at the surface, transition zones, and spherulitic core, is strongly affected by in-mold annealing. In particular, the thickness of the oriented layer, which forms in the early phase of the process, decreases, and the spherulites increase in size. Concerning mechanical behavior, the orientation degree mostly determines the elastic modulus value close to the surface, whereas the conditions under which crystallization occurs determine the modulus in the core.
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Affiliation(s)
- Sara Liparoti
- Department of Industrial Engineering, University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, SA, Italy
| | - Rita Salomone
- Department of Industrial Engineering, University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, SA, Italy
| | - Vito Speranza
- Department of Industrial Engineering, University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, SA, Italy
| | - Roberto Pantani
- Department of Industrial Engineering, University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, SA, Italy
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Liparoti S, De Piano G, Salomone R, Pantani R. Analysis of Weld Lines in Micro-Injection Molding. Materials (Basel) 2023; 16:6053. [PMID: 37687746 PMCID: PMC10489043 DOI: 10.3390/ma16176053] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 08/29/2023] [Accepted: 08/31/2023] [Indexed: 09/10/2023]
Abstract
Micro-injection molding (µIM) is a widespread process for the production of plastic parts with at least one dimension, or feature, in the microscale (conventionally below 500 µm). Despite injection molding being recognized as a robust process for obtaining parts with high geometry accuracy, one last occurrence remains a challenge in micro-injection molding, especially when junctions are present on the parts: the so-called weld lines. As weld lines are crucial in determining mechanical part performances, it is mandatory to clarify weld line position and characteristics, especially at the industrial scale during mold design, to limit failure causes. Many works deal with weld lines and their dependence on processing parameters for conventional injection molding, but only a few works focus on the weld line in µIM. This work examines the influence of mold temperature on the weld line position and strength by both experimental and simulation approaches in µIM. At mold temperatures below 100 °C, only short shots were obtained in the chosen cavity. At increased mold temperatures, weld lines show up to a 40% decrease in the whole length, and the overall tensile modulus doubles. This finding can be attributed to the reduction of the orientation at the weld line location favored by high mold temperatures. Moldflow simulations consistently reproduce the main features of the process, weld line position and length. The discrepancy between experimental and simulated results was attributed to the fact that crystallization in flow conditions was not accounted for in the model.
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Affiliation(s)
- Sara Liparoti
- Department of Industrial Engineering, University of Salerno, via Giovanni Paolo II 132, 84084 Fisciano, Italy; (G.D.P.); (R.S.); (R.P.)
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Piccirilli E, Chiarelli AM, Sestieri C, Mascali D, Calvo Garcia D, Primavera A, Salomone R, Wise RG, Ferretti A, Caulo M. Cerebral blood flow patterns in preterm and term neonates assessed with pseudo-continuous arterial spin labeling perfusion MRI. Hum Brain Mapp 2023; 44:3833-3844. [PMID: 37186355 DOI: 10.1002/hbm.26315] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 03/21/2023] [Accepted: 04/08/2023] [Indexed: 05/17/2023] Open
Abstract
In preterm (PT) infants, regional cerebral blood flow (CBF) disturbances may predispose to abnormal brain maturation even without overt brain injury. Therefore, it would be informative to determine the spatial distribution of grey matter (GM) CBF in PT and full-term (FT) newborns at term-equivalent age (TEA) and to assess the relationship between the features of the CBF pattern and both prematurity and prematurity-related brain lesions. In this prospective study, we obtained measures of CBF in 66 PT (51 without and 15 with prematurity-related brain lesions) and 38 FT newborns through pseudo-continuous arterial spin labeling (pCASL) MRI acquired at TEA. The pattern of GM CBF was characterized by combining an atlas-based automated segmentation of structural MRI with spatial normalization and hierarchical clustering. The effects of gestational age (GA) at birth and brain injury on the CBF pattern were investigated. We identified 4 physiologically-derived clusters of brain regions that were labeled Fronto-Temporal, Parieto-Occipital, Insular-Deep GM (DGM) and Sensorimotor, from the least to the most perfused. We demonstrated that GM perfusion was associated with GA at birth in the Fronto-Temporal and Sensorimotor clusters, positively and negatively, respectively. Moreover, the presence of periventricular leukomalacia was associated with significantly increased Fronto-Temporal GM perfusion and decreased Insular-DGM perfusion, while the presence of germinal matrix hemorrhage appeared to mildly decrease the Insular-DGM perfusion. Prematurity and prematurity-related brain injury heterogeneously affect brain perfusion. ASL MRI may, therefore, have strong potential as a noninvasive tool for the accurate stratification of individuals at risk of domain-specific impairment.
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Affiliation(s)
- Eleonora Piccirilli
- Department of Neuroscience, Imaging, and Clinical Sciences, University G. d'Annunzio of Chieti-Pescara, Chieti, Italy
- Institute for Advanced Biomedical Technologies (ITAB), University G. d'Annunzio of Chieti-Pescara, Chieti, Italy
| | - Antonio M Chiarelli
- Department of Neuroscience, Imaging, and Clinical Sciences, University G. d'Annunzio of Chieti-Pescara, Chieti, Italy
- Institute for Advanced Biomedical Technologies (ITAB), University G. d'Annunzio of Chieti-Pescara, Chieti, Italy
| | - Carlo Sestieri
- Department of Neuroscience, Imaging, and Clinical Sciences, University G. d'Annunzio of Chieti-Pescara, Chieti, Italy
- Institute for Advanced Biomedical Technologies (ITAB), University G. d'Annunzio of Chieti-Pescara, Chieti, Italy
| | - Daniele Mascali
- Department of Neuroscience, Imaging, and Clinical Sciences, University G. d'Annunzio of Chieti-Pescara, Chieti, Italy
- Institute for Advanced Biomedical Technologies (ITAB), University G. d'Annunzio of Chieti-Pescara, Chieti, Italy
| | - Darien Calvo Garcia
- Department of Neuroscience, Imaging, and Clinical Sciences, University G. d'Annunzio of Chieti-Pescara, Chieti, Italy
- Institute for Advanced Biomedical Technologies (ITAB), University G. d'Annunzio of Chieti-Pescara, Chieti, Italy
| | - Adele Primavera
- Department of Paediatrics, Neonatology and Neonatal Intensive Care Unit, University Hospital of Chieti, Chieti, Italy
| | - Rita Salomone
- Department of Paediatrics, Neonatology and Neonatal Intensive Care Unit, University Hospital of Chieti, Chieti, Italy
| | - Richard G Wise
- Department of Neuroscience, Imaging, and Clinical Sciences, University G. d'Annunzio of Chieti-Pescara, Chieti, Italy
- Institute for Advanced Biomedical Technologies (ITAB), University G. d'Annunzio of Chieti-Pescara, Chieti, Italy
| | - Antonio Ferretti
- Department of Neuroscience, Imaging, and Clinical Sciences, University G. d'Annunzio of Chieti-Pescara, Chieti, Italy
- Institute for Advanced Biomedical Technologies (ITAB), University G. d'Annunzio of Chieti-Pescara, Chieti, Italy
| | - Massimo Caulo
- Department of Neuroscience, Imaging, and Clinical Sciences, University G. d'Annunzio of Chieti-Pescara, Chieti, Italy
- Institute for Advanced Biomedical Technologies (ITAB), University G. d'Annunzio of Chieti-Pescara, Chieti, Italy
- Department of Radiology, SS. Annunziata Hospital, Chieti, Italy
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Salomone R, Speranza V, Liparoti S, Titomanlio G, Pantani R. Modeling and Analysis of Morphology of Injection Molding Polypropylene Parts Induced by In-Mold Annealing. Polymers (Basel) 2022; 14:polym14235245. [PMID: 36501641 PMCID: PMC9740916 DOI: 10.3390/polym14235245] [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: 11/02/2022] [Revised: 11/26/2022] [Accepted: 11/28/2022] [Indexed: 12/03/2022] Open
Abstract
It is generally recognized that high-temperature treatments, namely annealing, influence the microstructure and the morphology, which, in turn, determine the mechanical properties of polymeric parts. Therefore, annealing can be adopted to control the mechanical performance of the molded parts. This work aims to assess the effect of annealing on the morphology developed in isotactic polypropylene (iPP) injection-molded parts. In particular, a two-step annealing is adopted: the polymer is injected in a mold at a high temperature (413 or 433 K), which is kept for 5 min (first annealing step); afterward, the mold temperature is cooled down at 403 K and held at that temperature for a time compatible with the crystallization half-time at that temperature (second annealing step). The characterization of morphology is carried out by optical and electronic scanning microscopy. The temperature of the first annealing step does not influence the thickness of the fibrillar skin layer; however, such a layer is thinner than that found in the molded parts obtained without any annealing steps. The second annealing step does not influence the thickness of the fibrillar skin layer. The dimension of spherulites found in the core is strongly influenced by both annealing steps: the spherulite dimensions enlarge by the effect of annealing steps. A model that considers spherulite and fibril evolutions is adopted to describe the effect of molding conditions on the final morphology distribution along the part thickness. The model, which adopts as input the thermo-mechanical histories calculated by commercial software for injection molding simulation, consistently predicts the main effects of the molding conditions on the morphology distributions.
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Gasparroni G, Graziosi A, Bersani I, Caulo M, Moataza B, Aboulgar H, Mufeed H, Iskander I, Kornacka M, Gruzfeld D, Dotta A, Savarese I, Chukhlantseva N, Tina LG, Nigro F, Livolti G, Galvano F, Di Battista C, D'Adamo E, Primavera AP, Lapergola G, Conte M, Salomone R, Perrotta M, Panichi D, Levantini G, Catenaro M, Strozzi C, Maconi A, Centini G, Chiarelli F, D'Antonio F, Gavilanes DAW, Gazzolo D. S100B protein, cerebral ultrasound and magnetic resonance imaging patterns in brain injured preterm infants. Clin Chem Lab Med 2021; 59:1527-1534. [PMID: 34008376 DOI: 10.1515/cclm-2021-0278] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Accepted: 04/26/2021] [Indexed: 11/15/2022]
Abstract
OBJECTIVES The early detection of preterm infants (PI) at risk for intraventricular hemorrhage (IVH) and neurological sequelae still constitutes an unsolved issue. We aimed at validating the role of S100B protein in the early diagnosis and prognosis of IVH in PI by means of cerebral ultrasound (CUS) and magnetic resonance imaging (MRI) today considered standard of care procedures. METHODS We conducted an observational case-control study in 216 PI of whom 36 with IVH and 180 controls. Standard clinical, laboratory, radiological monitoring procedures and S100B urine measurement were performed at four time-points (first void, 24, 48, 96 h) after birth. Cerebral MRI was performed at 40-42 weeks of corrected gestational age. RESULTS Elevated (p<0.001, for all) S100B levels were observed in the IVH group at all monitoring time-point particularly at first void when standard monitoring procedures were still silent or unavailable. S100B measured at first void correlated (p<0.001) with the grade of hemorrhage by means of CUS and with the site and extension of neurological lesion (p<0.001, for all) as assessed by MRI. CONCLUSIONS The present results showing a correlation among S100B and CUS and MRI offer additional support to the inclusion of the protein in clinical daily management of cases at risk for IVH and adverse neurological outcome. The findings open the way to further investigations in PI aimed at validating new neurobiomarkers by means of S100B.
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Affiliation(s)
| | | | - Iliana Bersani
- Department of Neonatology, Neonatal Intensive Care Unit, Bambino Gesù; Children's Hospital, Rome, Italy
| | - Massimo Caulo
- Department of Neuroscience, Imaging and Clinical Sciences, University "G. d'Annunzio", Chieti, Italy
| | - Bashir Moataza
- Department of Neonatology, Cairo University, Cairo, Egypt
| | - Hanna Aboulgar
- Department of Neonatology, Cairo University, Cairo, Egypt
| | - Hala Mufeed
- Department of Neonatology, Cairo University, Cairo, Egypt
| | - Iman Iskander
- Department of Neonatology, Cairo University, Cairo, Egypt
| | - Maria Kornacka
- Department of Neonatology and Intensive Care of Neonate, Warsaw University, Warsaw, Poland
| | - Darek Gruzfeld
- Department of Neonatology and Intensive Care of Neonate, Warsaw University, Warsaw, Poland
| | - Andrea Dotta
- Department of Neonatology, Neonatal Intensive Care Unit, Bambino Gesù; Children's Hospital, Rome, Italy
| | - Immacolata Savarese
- Department of Neonatology, Neonatal Intensive Care Unit, Bambino Gesù; Children's Hospital, Rome, Italy
| | - Natalia Chukhlantseva
- Department of Neonatology, Neonatal Intensive Care Unit, Bambino Gesù; Children's Hospital, Rome, Italy
| | - Lucia Gabriella Tina
- Department of Maternal Fetal and Neonatal Health, G. Garibaldi Hospital, Catania, Italy
| | - Francesco Nigro
- Department of Maternal Fetal and Neonatal Health, G. Garibaldi Hospital, Catania, Italy
| | | | - Fabio Galvano
- Department of Biochemistry, Catania University, Catania, Italy
| | | | - Ebe D'Adamo
- Neonatal Intensive Care Unit, G. d'Annunzio University, Chieti, Italy
| | | | | | - Mariangela Conte
- Neonatal Intensive Care Unit, G. d'Annunzio University, Chieti, Italy
| | - Rita Salomone
- Neonatal Intensive Care Unit, G. d'Annunzio University, Chieti, Italy
| | - Marika Perrotta
- Neonatal Intensive Care Unit, G. d'Annunzio University, Chieti, Italy
| | - Daniele Panichi
- Neonatal Intensive Care Unit, G. d'Annunzio University, Chieti, Italy
| | | | - Milena Catenaro
- Department of Pediatrics, G. d'Annunzio University, Chieti, Italy
| | - Chiara Strozzi
- Department of Maternal, Fetal and Neonatal Medicine, ASO SS Antonio, Biagio and C. Arrigo, Alessandria, Italy
| | - Antonio Maconi
- Department of Maternal, Fetal and Neonatal Medicine, ASO SS Antonio, Biagio and C. Arrigo, Alessandria, Italy
| | - Giacomo Centini
- Department of Maternal, Fetal and Neonatal Medicine, ASO SS Antonio, Biagio and C. Arrigo, Alessandria, Italy
| | | | - Francesco D'Antonio
- Department of Obstetrics and Gynecology, Centre for Fetal Care and High Risk Pregnancy, University G. d'Annunzio, Chieti, Italy
| | - Danilo A W Gavilanes
- Department of Pediatrics and Neonatology, Maastricht University, Maastricht, The Netherlands
| | - Diego Gazzolo
- Neonatal Intensive Care Unit, G. d'Annunzio University, Chieti, Italy
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Tortora D, Mattei PA, Navarra R, Panara V, Salomone R, Rossi A, Detre JA, Caulo M. Prematurity and brain perfusion: Arterial spin labeling MRI. Neuroimage Clin 2017; 15:401-407. [PMID: 28603687 PMCID: PMC5454138 DOI: 10.1016/j.nicl.2017.05.023] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/17/2016] [Revised: 05/07/2017] [Accepted: 05/25/2017] [Indexed: 12/02/2022]
Abstract
Purpose Abnormal brain perfusion is a critical mechanism in neonatal brain injury. The aim of the present study was to compare Cerebral Blood Flow (CBF) evaluated with ASL MRI in three groups of neonates: preterms without brain lesions on MRI (PN), preterms with periventricular white matter lesions (PNp) and term neonates with normal MRI (TN). The correlation between CBF and clinical outcome was explored. Materials and methods The institutional review board approved this prospective study and waived informed consent. The perfusion ASL data from 49 consecutive preterm neonates (PN) studied at term-equivalent age and 15 TN were evaluated. Statistically significant differences in gray matter CBF were evaluated by using a linear mixed-model analysis and Mann-Whitney U test. Logistic regression analysis was used to assess the relation between CBF and neuromotor outcome at 12 months. Results Comparison of means indicated that the CBF of the whole brain were significantly higher in PN compared to TN (P = 0.011). This difference remained significant when considering the frontal (P = 0.038), parietal (P = 0.002), temporal (P = 0.030), occipital (P = 0.041) and cerebellar (P = 0.010) gray matter. In the PN group, lower CBF in basal ganglia was associated with a worse neuromotor outcome (P = 0.012). Conclusions ASL MRI demonstrated differences in brain perfusion of the basal ganglia between PN and TN. In PN, a positive correlation between CBF and neuromotor outcome was demonstrated in this area. Different ASL cerebral perfusion between preterm and term neonates Global reduction of CBF values in preterm neonates with white matter lesions ASL identifies preterm neonates at higher risk for sub-optimal neuromotor development. Worst 12-months neuromotor outcome in preterm neonates with lower CBF of basal ganglia
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Affiliation(s)
- Domenico Tortora
- ITAB-Institute of Advanced Biomedical Technologies, University "G. d'Annunzio", Via Luigi Polacchi 11, 66100 Chieti, Italy; Neuroradiology Unit, Istituto Giannina Gaslini, Via Gerolamo Gaslini 5, 16147 Genoa, Italy.
| | - Peter Angelo Mattei
- Ophthalmology Clinic, Department of Medicine and Aging Sciences, University "G. d'Annunzio", Via dei Vestini, 66100 Chieti, Italy.
| | - Riccardo Navarra
- ITAB-Institute of Advanced Biomedical Technologies, University "G. d'Annunzio", Via Luigi Polacchi 11, 66100 Chieti, Italy; Department of Neuroscience and Imaging, University "G. d'Annunzio", Via dei Vestini, 66100 Chieti, Italy.
| | - Valentina Panara
- ITAB-Institute of Advanced Biomedical Technologies, University "G. d'Annunzio", Via Luigi Polacchi 11, 66100 Chieti, Italy; Department of Neuroscience and Imaging, University "G. d'Annunzio", Via dei Vestini, 66100 Chieti, Italy.
| | - Rita Salomone
- Department of Paediatrics, Neonatology and Neonatal Intensive Care Unit, University Hospital of Chieti, Via dei Vestini, 66100 Chieti, Italy.
| | - Andrea Rossi
- Neuroradiology Unit, Istituto Giannina Gaslini, Via Gerolamo Gaslini 5, 16147 Genoa, Italy.
| | - John A Detre
- Department of Neurology, University of Pennsylvania Perelman School of Medicine, 3400 Spruce Street, Philadelphia, PA 19104, USA.
| | - Massimo Caulo
- ITAB-Institute of Advanced Biomedical Technologies, University "G. d'Annunzio", Via Luigi Polacchi 11, 66100 Chieti, Italy; Department of Neuroscience and Imaging, University "G. d'Annunzio", Via dei Vestini, 66100 Chieti, Italy.
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Navarra R, Sestieri C, Conte E, Salomone R, Mattei PA, Romani GL, Domizio S, Caulo M. Perinatal MRI diffusivity is related to early assessment of motor performance in preterm neonates. Neuroradiol J 2016; 29:137-45. [PMID: 26915895 DOI: 10.1177/1971400915628019] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [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: 11/17/2022] Open
Abstract
Preterm neonates represent a high-risk population for abnormal neuropsychological development. But presently, an accurate method for identifying those at risk is not available. This study evaluated the association between the microstructural organization measured with Diffusion Tensor Imaging (DTI) in term-corrected preterm neonates and subsequent motor performance. Fractional anisotropy (FA), axial diffusion (AD), mean diffusivity (MD) and radial diffusivity (RD) were determined in two regions of interest (ROIs) corresponding to the posterior limb of the internal capsule (PLIC) and cortico-spinal tract (CST). The Griffiths Mental Developmental Scales (GMDS) were longitudinally administered at 3, 6 and 15 months; and correlations between the metrics of diffusivity and the motor subscale of the GMDS were assessed using the Spearman correlation. A statistically significant negative correlation was observed between the AD of PLIC of the left hemisphere and the 3-month GMDS Locomotor Subscale. These results suggested that AD is a valid indicator of the stage of maturation of the motor pathway in preterm neonates, but not of later motor outcome.
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Affiliation(s)
- Riccardo Navarra
- Department of Neuroscience and Imaging, G d'Annunzio University, Chieti, Italy Institute of Advanced Biomedical Technologies (ITAB), G d'Annunzio University, Chieti, Italy
| | - Carlo Sestieri
- Department of Neuroscience and Imaging, G d'Annunzio University, Chieti, Italy Institute of Advanced Biomedical Technologies (ITAB), G d'Annunzio University, Chieti, Italy
| | - Emanuela Conte
- Department of Neonatology, San Salvatore Hospital, L'Aquila, Italy
| | - Rita Salomone
- Department of Pediatrics and Neonatology, G d'Annunzio University, Chieti, Italy
| | - Peter A Mattei
- Department of Medicine and Aging Sciences, G d'Annunzio University, Chieti, Italy
| | - Gian L Romani
- Department of Neuroscience and Imaging, G d'Annunzio University, Chieti, Italy Institute of Advanced Biomedical Technologies (ITAB), G d'Annunzio University, Chieti, Italy
| | - Sergio Domizio
- Department of Pediatrics and Neonatology, G d'Annunzio University, Chieti, Italy
| | - Massimo Caulo
- Department of Neuroscience and Imaging, G d'Annunzio University, Chieti, Italy Institute of Advanced Biomedical Technologies (ITAB), G d'Annunzio University, Chieti, Italy
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Tortora D, Panara V, Mattei PA, Tartaro A, Salomone R, Domizio S, Cotroneo AR, Caulo M. Comparing 3T T1-weighted sequences in identifying hyperintense punctate lesions in preterm neonates. AJNR Am J Neuroradiol 2014; 36:581-6. [PMID: 25376807 DOI: 10.3174/ajnr.a4144] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE The loss of contrast on T1-weighted MR images at 3T may affect the detection of hyperintense punctate lesions indicative of periventricular leukomalacia in preterm neonates. The aim of the present study was to determine which 3T T1-weighted sequence identified the highest number of hyperintense punctate lesions and to explore the relationship between the number of hyperintense punctate lesions and clinical outcome. MATERIALS AND METHODS The presence of hyperintense punctate lesions was retrospectively evaluated in 200 consecutive preterm neonates on 4 axial T1-weighted sequences: 3-mm inversion recovery and spin-echo and 1- and 3-mm reformatted 3D-fast-field echo. Statistically significant differences in the number of hyperintense punctate lesions were evaluated by using a linear mixed-model analysis. Logistic regression analysis was used to assess the relation between the number of hyperintense punctate lesions and neuromotor outcome at 3 months. RESULTS Thirty-one neonates had at least 1 hyperintense punctate lesion indicative of periventricular leukomalacia in at least 1 of the 4 sequences. The 1-mm axial reformatted 3D-fast-field echo sequence identified the greatest number of hyperintense punctate lesions (P < .001). No statistically significant differences were found among the 3-mm T1-weighted sequences. The greater number of hyperintense punctate lesions detected by the 1-mm reformatted T1 3D-fast-field echo sequence in the central region of the brain was associated with a worse clinical outcome. CONCLUSIONS At 3T, the 1-mm axial reformatted T1 3D-fast-field echo sequence identified the greatest number of hyperintense punctate lesions in the central region of preterm neonate brains, and this number was associated with neuromotor outcome.
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Affiliation(s)
- D Tortora
- From the Radiology Unit (D.T., V.P., A.R.C., M.C.) ITAB-Institute of Advanced Biomedical Technologies (D.T., V.P., A.T., M.C.)
| | - V Panara
- From the Radiology Unit (D.T., V.P., A.R.C., M.C.) ITAB-Institute of Advanced Biomedical Technologies (D.T., V.P., A.T., M.C.)
| | | | - A Tartaro
- From the Radiology Unit (D.T., V.P., A.R.C., M.C.) ITAB-Institute of Advanced Biomedical Technologies (D.T., V.P., A.T., M.C.) Department of Neuroscience and Imaging (A.T., A.R.C., M.C.), University "G. d'Annunzio" of Chieti, Chieti, Italy
| | - R Salomone
- Neonatology and Neonatal Intensive Care Unit (R.S., S.D.), University Hospital of Chieti, Chieti, Italy
| | - S Domizio
- Neonatology and Neonatal Intensive Care Unit (R.S., S.D.), University Hospital of Chieti, Chieti, Italy
| | - A R Cotroneo
- From the Radiology Unit (D.T., V.P., A.R.C., M.C.) Department of Neuroscience and Imaging (A.T., A.R.C., M.C.), University "G. d'Annunzio" of Chieti, Chieti, Italy
| | - M Caulo
- From the Radiology Unit (D.T., V.P., A.R.C., M.C.) ITAB-Institute of Advanced Biomedical Technologies (D.T., V.P., A.T., M.C.) Department of Neuroscience and Imaging (A.T., A.R.C., M.C.), University "G. d'Annunzio" of Chieti, Chieti, Italy.
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Abstract
Pseudoverrucous papules and nodules can be observed on skin surrounding urostomies and colostomies. These lesions appear to be uncommon, and sometimes can be misdiagnosed, even leading to surgical removal. We report the case of a 12-year-old boy whose lesions appeared in crops in an area subjected to urine leakage and spontaneously regressed in time. In this patient, anogenital warts had to be ruled out, but many skin diseases must be considered in the differential diagnosis of these misunderstood lesions. We stress the importance of a skin examination by a trained professional aware of these problems to avoid unnecessary investigations and treatments.
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Affiliation(s)
- P Coppo
- Servizio di Dermatologia, Ospedale Infantile Regina Margherita, Torino, Italy
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Pippione M, Bundino S, Salomone R, Becchis G. [Infantile seborrheic dermatitis]. Minerva Pediatr 1995; 47:1-5. [PMID: 7791702] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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12
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Bundino S, Salomone R, Zina AM. [Clinical evaluation of josamycin in the treatment of acne]. GIORN ITAL DERMAT V 1989; 124:LV-LX. [PMID: 2534716] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The efficacy of josamycin in the treatment of inflammatory acne has been evaluated in 39 patients. Josamycin was orally administered to the patients as a single 500 mg daily dose for two months, but the patients with the most severe lesions received an initial treatment of 1 g for a maximum of 20 days. All subjects received josamycin in combination with other antiacne drugs mostly benzoyl peroxide ointment. The treatment induced a significant regression of the number and the severity of the lesions scored according to Plewig-Kligman's classification. At the end of the treatment a positive effect was observed for 92% of the subjects, independently of the variety and the degree of the severity of the disease. According to the patients' judgments josamycin was an effective treatment (92.3%) and more effective that the previously prescribed drugs (95%). Only 1 patient reported the occurrence of a side effect (mild gastric discomfort). Josamycin showed in this study to be an effective and safe drug for the treatment of inflammatory acne.
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Jacobelli-Turi C, Maracci F, Margani A, Palmera M, Salomone R. Solubilization in solution of colloidal electrolytes. 3. Aromatic aminescetyltrimethylammonium bromide aqueous systems. Ital J Biochem 1972; 21:289-97. [PMID: 4669562] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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Richards FF, Barnes WT, Lovins RE, Salomone R, Waterfield MD. Quantitative approach to the sequential degradation of proteins and peptides. Nature 1969; 221:1241-4. [PMID: 5773838 DOI: 10.1038/2211241a0] [Citation(s) in RCA: 29] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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