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Uguagliati B, Stagni F, Emili M, Giacomini A, Russo C, Guidi S, Bartesaghi R. Early appearance of dendritic alterations in neocortical pyramidal neurons of the Ts65Dn model of Down syndrome. Dev Neurosci 2021; 44:23-38. [PMID: 34852343 DOI: 10.1159/000520925] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2021] [Accepted: 11/10/2021] [Indexed: 11/19/2022] Open
Abstract
Down syndrome (DS), which is due to triplication of chromosome 21, is constantly associated with intellectual disability (ID). ID can be ascribed to both neurogenesis impairment and dendritic pathology. These defects are replicated in the Ts65Dn mouse, a widely used model of DS. While neurogenesis impairment in DS is a fetal event, dendritic pathology occurs after the first postnatal months. Neurogenesis alterations across the lifespan have been extensively studied in the Ts65Dn mouse. In contrast, there is scarce information regarding dendritic alterations at early life stages in this and other models, although there is evidence for dendritic alterations in adult mouse models. Thus, the goal of the current study was to establish whether dendritic alterations are already present in the neonatal period in Ts65Dn mice. In Golgi-stained brains we quantified the dendritic arbors of layer II/III pyramidal neurons in the frontal cortex of Ts65Dn mice aged 2 (P2) and 8 (P8) days and their euploid littermates. In P2 Ts65Dn mice we found a moderate hypotrophy of the apical and collateral dendrites but a patent hypotrophy of the basal dendrites. In P8 Ts65Dn mice the distalmost apical branches were missing or reduced in number but there were no alterations in the collateral and basal dendrites. No genotype effects were detected on either somatic or dendritic spine density. This study shows dendritic branching defects that mainly involve the basal domain in P2 Ts65Dn mice, and the apical but not the other domains in P8 Ts65Dn mice. This suggests that dendritic defects may be related to dendritic compartment and age. The lack of a severe dendritic pathology in Ts65Dn pups is reminiscent of the delayed appearance of patent dendritic alterations in newborns with DS. This similarly highlights the usefulness of the Ts65Dn model for the study of the mechanisms underlying dendritic alterations in DS and the design of possible therapeutic interventions.
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Affiliation(s)
- Beatrice Uguagliati
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy
| | - Fiorenza Stagni
- Department for Life Quality Studies, University of Bologna, Rimini, Italy
| | - Marco Emili
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy
| | - Andrea Giacomini
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy
| | - Carla Russo
- Department for Life Quality Studies, University of Bologna, Rimini, Italy
| | - Sandra Guidi
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy
| | - Renata Bartesaghi
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy
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Sala A, Lorusso R, Bargagna M, Ruggeri S, Buzzatti N, Scandroglio M, Monaco F, Agricola E, Giacomini A, Carino D, Meneghin R, Schiavi D, Lapenna E, Denti P, Blasio A, Alfieri O, Castiglioni A, De Bonis M. Complicated postoperative course in isolated tricuspid valve surgery: Looking for predictors. J Card Surg 2021; 36:3092-3099. [PMID: 34131952 DOI: 10.1111/jocs.15739] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Accepted: 06/03/2021] [Indexed: 11/27/2022]
Abstract
BACKGROUND This study aims at better defining the profile of patients with a complicated versus noncomplicated postoperative course following isolated tricuspid valve (TV) surgery to identify predictors of a favorable/unfavorable hospital outcome. METHODS All patients treated with isolated tricuspid surgery from March 1997 to January 2020 at our institution were retrospectively reviewed. Considering the complexity of most of these patients, a regular postoperative course was arbitrarily defined as a length-of-stay in intensive care unit less than 4 days and/or postoperative length-of-stay less than 10days. Patients were therefore divided accordingly in two groups. RESULTS One hundred and seventy-two patients were considered, among whom 97 (56.3%) had a regular (REG) and 75 (43.6%) a non-regular (NEG) postoperative course. The latter had worse baseline clinical and echocardiographic characteristics, with higher rate of renal insufficiency, previous heart failure hospitalizations, cardiac operations, and right ventricular dysfunction. NEG patients more frequently needed tricuspid replacement and experienced a greater number of complications (p < .001) and higher in-hospital mortality (13% vs. 0%, p < .001). The majority of these complications were related to more advanced stage of the tricuspid disease. Among most important predictors of a negative outcome univariate analysis identified chronic kidney disease, ascites, previous right heart failure hospitalizations, right ventricular dysfunction, previous cardiac surgeries, TV replacement and higher MELD scores. At multivariate analysis, liver enzymes and diuretics' dose were predictors of complicated postoperative course. CONCLUSION In isolated TV surgery a complicated postoperative course is observed in patients with more advanced right heart failure and organ damage. Earlier surgical referral is associated to excellent outcomes and should be recommended.
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Affiliation(s)
- Alessandra Sala
- Department of Cardiac Surgery, IRCCS San Raffaele Hospital, Vita-Salute San Raffaele University, Milan, Italy
| | - Roberto Lorusso
- Cardio-Thoracic Surgery Department, Heart & Vascular Center, Maastricht University Medical Center (MUMC), Maastricht, The Netherlands.,Cardiovascular Research Institute Maastricht (CARIM), Maastricht, The Netherlands
| | - Marta Bargagna
- Department of Cardiac Surgery, IRCCS San Raffaele Hospital, Vita-Salute San Raffaele University, Milan, Italy
| | - Stefania Ruggeri
- Department of Cardiac Surgery, IRCCS San Raffaele Hospital, Vita-Salute San Raffaele University, Milan, Italy
| | - Nicola Buzzatti
- Department of Cardiac Surgery, IRCCS San Raffaele Hospital, Vita-Salute San Raffaele University, Milan, Italy
| | - Mara Scandroglio
- Department of Anesthesiology, IRCCS San Raffaele Hospital, Vita-Salute San Raffaele University, Milan, Italy
| | - Fabrizio Monaco
- Department of Anesthesiology, IRCCS San Raffaele Hospital, Vita-Salute San Raffaele University, Milan, Italy
| | - Eustachio Agricola
- Department of Cardiology, IRCCS San Raffaele Hospital, Vita-Salute San Raffaele University, Milan, Italy
| | - Andrea Giacomini
- Department of Cardiac Surgery, IRCCS San Raffaele Hospital, Vita-Salute San Raffaele University, Milan, Italy
| | - Davide Carino
- Department of Cardiac Surgery, IRCCS San Raffaele Hospital, Vita-Salute San Raffaele University, Milan, Italy
| | - Roberta Meneghin
- Department of Cardiac Surgery, IRCCS San Raffaele Hospital, Vita-Salute San Raffaele University, Milan, Italy
| | - Davide Schiavi
- Department of Cardiac Surgery, IRCCS San Raffaele Hospital, Vita-Salute San Raffaele University, Milan, Italy
| | - Elisabetta Lapenna
- Department of Cardiac Surgery, IRCCS San Raffaele Hospital, Vita-Salute San Raffaele University, Milan, Italy
| | - Paolo Denti
- Department of Cardiac Surgery, IRCCS San Raffaele Hospital, Vita-Salute San Raffaele University, Milan, Italy
| | - Andrea Blasio
- Department of Cardiac Surgery, IRCCS San Raffaele Hospital, Vita-Salute San Raffaele University, Milan, Italy
| | - Ottavio Alfieri
- Department of Cardiac Surgery, IRCCS San Raffaele Hospital, Vita-Salute San Raffaele University, Milan, Italy
| | - Alessandro Castiglioni
- Department of Cardiac Surgery, IRCCS San Raffaele Hospital, Vita-Salute San Raffaele University, Milan, Italy
| | - Michele De Bonis
- Department of Cardiac Surgery, IRCCS San Raffaele Hospital, Vita-Salute San Raffaele University, Milan, Italy
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Tarrah A, Dos Santos Cruz BC, Sousa Dias R, da Silva Duarte V, Pakroo S, Licursi de Oliveira L, Gouveia Peluzio MC, Corich V, Giacomini A, Oliveira de Paula S. Lactobacillus paracasei DTA81, a cholesterol-lowering strain having immunomodulatory activity, reveals gut microbiota regulation capability in BALB/c mice receiving high-fat diet. J Appl Microbiol 2021; 131:1942-1957. [PMID: 33709536 PMCID: PMC8518695 DOI: 10.1111/jam.15058] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Revised: 01/02/2021] [Accepted: 03/08/2021] [Indexed: 12/24/2022]
Abstract
Aims In‐vitro/In‐vivo evaluation of cholesterol‐lowering probiotic strain Lactobacillus paracasei DTA81 and the possible connection with the gut microbiota modulation. Methods and Results In the present study, strain DTA81 has been evaluated for the possible influence on blood lipid and glucose concentrations, modulation of the immune system, gastrointestinal survivability and modulation of gut microbiota in BALB/c mice receiving a high‐fat diet. After 6 weeks of treatment, a significant reduction of total cholesterol and fasting blood sugar (FBS) among animals treated with L. paracasei DTA81 has been recorded. Comparison of colon tissue levels of different cytokines revealed a significant reduction of the inflammatory cytokine interleukin‐6. The comparison of gut microbiota using the 16S rRNA approach indicated that the treatment with L. paracasei DTA81 significantly increased the taxa Bacteroidetes and Coprococcus. Moreover, the genome of DTA81 was sequenced for the in‐silico assessment, and the analysis indicated the presence of cholesterol assimilation‐related genes as well as the absence of negative traits such as transmissible antibiotic resistance genes, plasmids and prophage regions. Conclusion The outcome of this study revealed the in‐vitro and in‐vivo properties of L. paracasei DTA81 and the possible mechanism between consumption of this strain, the abundance of Bacteriodetes/Coprococcus taxa, immunomodulatory activity and the subsequent reduction of cholesterol/FBS in BALB/c mice. Significance and Impact of the Study Lactobacillus paracasei DTA81 as a non‐pharmacological potential probiotic supplement can influence metabolic homeostasis in individuals, particularly those adopting high‐fat diets, and it can contribute to reduce coronary heart disease.
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Affiliation(s)
- A Tarrah
- Department of Agronomy Food Natural Resources Animals and Environment, University of Padova, Viale dell'Universitá, Italy
| | - B C Dos Santos Cruz
- Department of Nutrition and Health, Federal University of Viçosa, Viçosa, Minas Gerais, Brazil
| | - R Sousa Dias
- Department of General Biology, Federal University of Viçosa, Viçosa, Minas Gerais, Brazil
| | - V da Silva Duarte
- Department of Agronomy Food Natural Resources Animals and Environment, University of Padova, Viale dell'Universitá, Italy
| | - S Pakroo
- Department of Agronomy Food Natural Resources Animals and Environment, University of Padova, Viale dell'Universitá, Italy
| | - L Licursi de Oliveira
- Department of General Biology, Federal University of Viçosa, Viçosa, Minas Gerais, Brazil
| | - M C Gouveia Peluzio
- Department of Nutrition and Health, Federal University of Viçosa, Viçosa, Minas Gerais, Brazil
| | - V Corich
- Department of Agronomy Food Natural Resources Animals and Environment, University of Padova, Viale dell'Universitá, Italy
| | - A Giacomini
- Department of Agronomy Food Natural Resources Animals and Environment, University of Padova, Viale dell'Universitá, Italy
| | - S Oliveira de Paula
- Department of General Biology, Federal University of Viçosa, Viçosa, Minas Gerais, Brazil
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Belluschi I, Lapenna E, Blasio A, Del Forno B, Giacomini A, Ruggeri S, Schiavi D, Castiglioni A, Alfieri O, De Bonis M. Excellent long-term results with minimally invasive edge-to-edge repair in myxomatous degenerative mitral valve regurgitation. Interact Cardiovasc Thorac Surg 2021; 31:28-34. [PMID: 32221590 DOI: 10.1093/icvts/ivaa048] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Revised: 01/13/2020] [Accepted: 01/29/2020] [Indexed: 01/05/2023] Open
Abstract
OBJECTIVES Previous series of minimally invasive mitral valve repairs showed excellent results at up to 10 years of follow-up. The goal of this study was to assess the long-term durability beyond 10 years of the edge-to-edge repair for myxomatous degeneration performed through a minimally invasive approach. METHODS Ninety-seven consecutive patients (mean age 35 ± 9 years; left ventricular ejection fraction 63 ± 6%) with severe myxomatous mitral regurgitation (MR) underwent mitral valve repair through a right minithoracotomy between 1999 and 2006. MR was due to lesions involving the posterior leaflet (7.2% of patients), anterior leaflet (12.4%) and both leaflets (80.4%). RESULTS No hospital deaths occurred. At hospital discharge all patients had no or trivial MR. Follow-up was 100% complete (median 15.5 years; interquartile range 13.6-17.0, max 19.3 years). The 16-year overall survival rate was 95.9 ± 2.02% [95% confidence interval (CI) 89.39-98.43]. At 16 years, the cumulative incidence function of cardiac death, with non-cardiac death as a competing risk, was 3.1 ± 1.75 (95% CI 0.83-8.02). Only 3 patients (4.1%) had redo operations for recurrent severe MR. At 16 years, the cumulative incidence functions of reoperation for and recurrence of MR ≥3+, with death as a competing risk, were 3.1 ± 1.76% (95% CI 0.83-8.02) and 5.6 ± 2.47% (95% CI 2.06-11.83), respectively. No predictors of recurrence of MR ≥3+ were identified. At the last follow-up, moderate MR (2+/4+) was detected in 17 patients (17.5%); most of the patients were in New York Heart Association functional class I-II (97%) and in sinus rhythm (90%). CONCLUSIONS Minimally invasive mitral valve edge-to-edge repair through a right minithoracotomy for myxomatous degeneration appears to be an effective and durable approach even in the long-term follow-up (up to 19 years).
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Affiliation(s)
- Igor Belluschi
- Department of Cardiac Surgery, IRCCS San Raffaele Hospital, Vita-Salute San Raffaele University, Milan, Italy
| | - Elisabetta Lapenna
- Department of Cardiac Surgery, IRCCS San Raffaele Hospital, Vita-Salute San Raffaele University, Milan, Italy
| | - Andrea Blasio
- Department of Cardiac Surgery, IRCCS San Raffaele Hospital, Vita-Salute San Raffaele University, Milan, Italy
| | - Benedetto Del Forno
- Department of Cardiac Surgery, IRCCS San Raffaele Hospital, Vita-Salute San Raffaele University, Milan, Italy
| | - Andrea Giacomini
- Department of Cardiac Surgery, IRCCS San Raffaele Hospital, Vita-Salute San Raffaele University, Milan, Italy
| | - Stefania Ruggeri
- Department of Cardiac Surgery, IRCCS San Raffaele Hospital, Vita-Salute San Raffaele University, Milan, Italy
| | - Davide Schiavi
- Department of Cardiac Surgery, IRCCS San Raffaele Hospital, Vita-Salute San Raffaele University, Milan, Italy
| | - Alessandro Castiglioni
- Department of Cardiac Surgery, IRCCS San Raffaele Hospital, Vita-Salute San Raffaele University, Milan, Italy
| | - Ottavio Alfieri
- Department of Cardiac Surgery, IRCCS San Raffaele Hospital, Vita-Salute San Raffaele University, Milan, Italy
| | - Michele De Bonis
- Department of Cardiac Surgery, IRCCS San Raffaele Hospital, Vita-Salute San Raffaele University, Milan, Italy
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Uguagliati B, Al-Absi AR, Stagni F, Emili M, Giacomini A, Guidi S, Nyengaard JR, Bartesaghi R. Early appearance of developmental alterations in the dendritic tree of the hippocampal granule cells in the Ts65Dn model of Down syndrome. Hippocampus 2021; 31:435-447. [PMID: 33464704 DOI: 10.1002/hipo.23303] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [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: 11/06/2020] [Revised: 12/22/2020] [Accepted: 01/09/2021] [Indexed: 12/28/2022]
Abstract
Down syndrome (DS), a genetic condition caused by triplication of chromosome 21, is characterized by alterations in various cognitive domains, including hippocampus-dependent memory functions, starting from early life stages. The major causes of intellectual disability in DS are prenatal neurogenesis alterations followed by impairment of dendritic development in early infancy. While there is evidence that the Ts65Dn mouse, the most widely used model of DS, exhibits dendritic alterations in adulthood, no studies are available regarding the onset of dendritic pathology. The goal of the current study was to establish whether this model exhibits early dendritic alterations in the hippocampus, a region whose function is severely damaged in DS. To this purpose, in Golgi-stained brains, we evaluated the dendritic arborization and dendritic spines of the granule cells of the hippocampal dentate gyrus in Ts65Dn mice aged 8 (P8) and 15 (P15) days. While P15 Ts65Dn mice exhibited a notably hypotrophic dendritic arbor and a reduced spine density, P8 mice exhibited a moderate reduction in the number of dendritic ramifications and no differences in spine density in comparison with their euploid counterparts. Both in P8 and P15 mice, spines were longer and had a longer neck, suggesting possible alterations in synaptic function. Moreover, P8 and P15 Ts65Dn mice had more thin spines and fewer stubby spines in comparison with euploid mice. Our study provides novel evidence on the onset of dendritic pathology, one of the causes of intellectual disability in DS, showing that it is already detectable in the dentate gyrus of Ts65Dn pups. This evidence strengthens the suitability of this model of DS as a tool to study dendritic pathology in DS and to test the efficacy of early therapeutic interventions aimed at ameliorating hippocampal development and, therefore, memory functions in children with DS.
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Affiliation(s)
- Beatrice Uguagliati
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy
| | - Abdel-Rahman Al-Absi
- Core Centre for Molecular Morphology, Section for Stereology and Microscopy, Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Fiorenza Stagni
- Department for Life Quality Studies, University of Bologna, Rimini, Italy
| | - Marco Emili
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy
| | - Andrea Giacomini
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy
| | - Sandra Guidi
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy
| | - Jens Randel Nyengaard
- Core Centre for Molecular Morphology, Section for Stereology and Microscopy, Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Renata Bartesaghi
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy
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Gessoni G, Valverde S, Maturi P, Giacomini A, Antico F, Manoni F. Cytometry in the diagnosis of acute urinary tract infections: one year’s experience. Scandinavian Journal of Clinical and Laboratory Investigation 2020; 64:77-80. [PMID: 15025432 DOI: 10.1080/00365510410003886] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Emili M, Guidi S, Uguagliati B, Giacomini A, Bartesaghi R, Stagni F. Treatment with the flavonoid 7,8-Dihydroxyflavone: a promising strategy for a constellation of body and brain disorders. Crit Rev Food Sci Nutr 2020; 62:13-50. [DOI: 10.1080/10408398.2020.1810625] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Marco Emili
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy
| | - Sandra Guidi
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy
| | - Beatrice Uguagliati
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy
| | - Andrea Giacomini
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy
| | - Renata Bartesaghi
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy
| | - Fiorenza Stagni
- Department for Life Quality Studies, University of Bologna, Rimini, Italy
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Emili M, Stagni F, Salvalai ME, Uguagliati B, Giacomini A, Albac C, Potier MC, Grilli M, Bartesaghi R, Guidi S. Neonatal therapy with clenbuterol and salmeterol restores spinogenesis and dendritic complexity in the dentate gyrus of the Ts65Dn model of Down syndrome. Neurobiol Dis 2020; 140:104874. [PMID: 32325119 DOI: 10.1016/j.nbd.2020.104874] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Revised: 04/09/2020] [Accepted: 04/19/2020] [Indexed: 11/19/2022] Open
Abstract
Down syndrome (DS), a neurodevelopmental disorder caused by triplication of chromosome 21, is characterized by intellectual disability. In DS, defective neurogenesis causes an overall reduction in the number of neurons populating the brain and defective neuron maturation causes dendritic hypotrophy and reduction in the density of dendritic spines. No effective therapy currently exists for the improvement of brain development in individuals with DS. Drug repurposing is a strategy for identifying new medical use for approved drugs. A drug screening campaign showed that the β2-adrenergic receptor (β2-AR) agonists clenbuterol hydrochloride (CLEN) and salmeterol xinafoate (SALM) increase the proliferation rate of neural progenitor cells from the Ts65Dn model of DS. The goal of the current study was to establish their efficacy in vivo, in the Ts65Dn model. We found that, at variance with the in vitro experiments, treatment with CLEN or SALM did not restore neurogenesis in the hippocampus of Ts65Dn mice treated during the postnatal (P) period P3-P15. In Ts65Dn mice treated with CLEN or SALM, however, dendritic spine density and dendritic arborization of the hippocampal granule cells were restored and the lowest dose tested here (0.01 mg/kg/day) was sufficient to elicit these effects. CLEN and SALM are used in children as therapy for asthma and, importantly, they pass the blood-brain barrier. Our study suggests that treatment with these β2-AR agonists may be a therapy of choice in order to correct dendritic development in DS but is not suitable to rescue neurogenesis.
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Affiliation(s)
- Marco Emili
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy
| | - Fiorenza Stagni
- Department for Life Quality Studies, University of Bologna, Rimini, Italy
| | | | - Beatrice Uguagliati
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy
| | - Andrea Giacomini
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy
| | - Christelle Albac
- Institut du Cerveau et de la Moelle- CNRS UMR7225 - INSERM U1127 - Sorbonne University, Hôpital de la Pitié-Salpêtrière, Paris, France
| | - Marie-Claude Potier
- Institut du Cerveau et de la Moelle- CNRS UMR7225 - INSERM U1127 - Sorbonne University, Hôpital de la Pitié-Salpêtrière, Paris, France
| | - Mariagrazia Grilli
- Department of Pharmaceutical Sciences, University of Piemonte Orientale, Italy
| | - Renata Bartesaghi
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy.
| | - Sandra Guidi
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy.
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Stagni F, Salvalai ME, Giacomini A, Emili M, Uguagliati B, Xia E, Grilli M, Bartesaghi R, Guidi S. Neonatal treatment with cyclosporine A restores neurogenesis and spinogenesis in the Ts65Dn model of Down syndrome. Neurobiol Dis 2019; 129:44-55. [DOI: 10.1016/j.nbd.2019.05.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2018] [Revised: 11/21/2018] [Accepted: 05/10/2019] [Indexed: 10/26/2022] Open
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Giacomini A, Esposito A, Nisi T, Lapenna E, Bartesaghi S, Redaelli D, Pappalardo F, Colombo G, De Bonis M. Preoperative Computational Fluid Dynamics Simulation of the Best Anastomosis Site and Angle of the Outflow Graft and Ascending Aorta in Continuous Flow Mechanical Assist Devices. J Heart Lung Transplant 2019. [DOI: 10.1016/j.healun.2019.01.873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Stagni F, Giacomini A, Emili M, Uguagliati B, Bonasoni MP, Bartesaghi R, Guidi S. Subicular hypotrophy in fetuses with Down syndrome and in the Ts65Dn model of Down syndrome. Brain Pathol 2018; 29:366-379. [PMID: 30325080 DOI: 10.1111/bpa.12663] [Citation(s) in RCA: 6] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Revised: 09/07/2018] [Accepted: 10/02/2018] [Indexed: 12/30/2022] Open
Abstract
Intellectual disability in Down syndrome (DS) has been attributed to neurogenesis impairment during fetal brain development. Consistently with explicit memory alterations observed in children with DS, fetuses with DS exhibit neurogenesis impairment in the hippocampus, a key region involved in memory formation and consolidation. Recent evidence suggests that the subiculum plays a unique role in memory retrieval, a process that is also altered in DS. While much attention has been devoted to the hippocampus, there is a striking lack of information regarding the subiculum of individuals with DS and DS models. In order to fill this gap, in the current study, we examined the subiculum of fetuses with DS and of the Ts65Dn mouse model of DS. We found that in fetuses with DS (gestational week: 17-21), the subiculum had a reduced thickness, a reduced cell density, a reduced density of progenitor cells in the ventricular zone, a reduced percentage of neurons, and an increased percentage of astrocytes and of cells immunopositive for calretinin-a protein expressed by inhibitory interneurons. Similarly to fetuses with DS, the subiculum of neonate Ts65Dn mice was reduced in size, had a reduced number of neurons and a reduced number of proliferating cells. Results suggest that the developmental defects in the subiculum of fetuses with DS may underlie impairment in recall memory and possibly other functions played by the subiculum. The finding that the subiculum of the Ts65Dn mouse exhibits neuroanatomical defects resembling those seen in fetuses with DS further validates the use of this model for preclinical studies.
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Affiliation(s)
- Fiorenza Stagni
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy
| | - Andrea Giacomini
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy
| | - Marco Emili
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy
| | - Beatrice Uguagliati
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy
| | | | - Renata Bartesaghi
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy
| | - Sandra Guidi
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy
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Lapenna E, Cireddu M, Del Forno B, Monaco F, Nisi T, Bargagna M, Ajello S, Gulletta S, Melisurgo G, Belluschi I, D’Angelo G, Giacomini A, Pappalardo F, Alfieri O, Castiglioni A, Bella PD, De Bonis M. OC67 STAGED HYBRID EPICARDIAL-ENDOCARDIAL PROCEDURE IN PATIENTS WITH REFRACTORY PERSISTENT/LONG-STANDING PERSISTENT ATRIAL FIBRILLATION AND SEVERE LEFT ATRIAL DILATATION. J Cardiovasc Med (Hagerstown) 2018. [DOI: 10.2459/01.jcm.0000549934.61949.18] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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13
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Guidi S, Bianchi P, Stagni F, Giacomini A, Emili M, Trazzi S, Ciani E, Bartesaghi R. Lithium Restores Age-related Olfactory Impairment in the Ts65Dn Mouse Model of Down Syndrome. CNS Neurol Disord Drug Targets 2018; 16:812-819. [PMID: 27488422 DOI: 10.2174/1871527315666160801143108] [Citation(s) in RCA: 6] [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: 04/21/2016] [Revised: 06/23/2016] [Accepted: 07/21/2016] [Indexed: 11/22/2022]
Abstract
BACKGROUND & OBJECTIVE Down syndrome, a genetic condition caused by triplication of chromosome 21, is characterized by widespread neurogenesis reduction and cognitive impairment. Unlike other brain functions, smell is not impaired at early life stages and olfactory deterioration begins to appear in adulthood. Similarly to individuals with Down syndrome, in the Ts65Dn mouse model of Down syndrome smell function is normal at early life stages. Smell impairment only appears in adulthood associated with a reduction in the number of new granule neurons migrated to the olfactory bulb from the subventricular zone. Based on evidence that lithium positively impacts neurogenesis, the goal of current study was to establish whether treatment with lithium restores olfactory bulb neurogenesis and olfactory performance in middle-aged Ts65Dn mice. METHOD Euploid and Ts65Dn mice aged 13 months were treated with lithium chow or control chow for one month. Before the end of treatment, mice were injected with BrdU, in order to label proliferating cells. Results showed that in Ts65Dn mice lithium treatment restored the number of neural precursor cells in the subventricular zone of the lateral ventricle, rostral migratory stream and olfactory bulb. This effect was accompanied by restoration of olfactory performance. Unlike in olfactory neurogenic regions, treatment had no neurogenesis-enhancing effect on the subgranular zone of the hippocampal dentate gyrus, indicating that lithium has no generalized positive effect on the brain. CONCLUSION Results suggest that lithium may have a positive impact in brain disorders that, similarly to Down syndrome, are characterized by olfactory decline and neurogenesis impairment in the subventricular zone.
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Affiliation(s)
- Sandra Guidi
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna. Italy
| | - Patrizia Bianchi
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna. Italy
| | - Fiorenza Stagni
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna. Italy
| | - Andrea Giacomini
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna. Italy
| | - Marco Emili
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna. Italy
| | - Stefania Trazzi
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna. Italy
| | - Elisabetta Ciani
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna. Italy
| | - Renata Bartesaghi
- Department of Biomedical and Neuromotor Sciences, Physiology Building, Piazza di Porta San Donato 2, I-40126 BOLOGNA BO. Italy
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14
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Guidi S, Giacomini A, Stagni F, Emili M, Uguagliati B, Bonasoni MP, Bartesaghi R. Abnormal development of the inferior temporal region in fetuses with Down syndrome. Brain Pathol 2018; 28:986-998. [PMID: 29509279 DOI: 10.1111/bpa.12605] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [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: 10/17/2017] [Accepted: 03/04/2018] [Indexed: 02/06/2023] Open
Abstract
Down syndrome (DS) is a genetic condition associated with impairment in several cognitive domains. Previous evidence showed a notable neurogenesis reduction in the hippocampal region of DS fetuses, which may account for the impairment of declarative memory that characterizes DS starting from early life stages. The fusiform gyrus (FG) and the inferior temporal gyrus (ITG) play a key role in visual recognition memory, a function that is impaired in children and adults with DS. The goal of the current study was to establish whether fetuses with DS (17-21 weeks of gestation) exhibit neuroanatomical alterations in the FG and ITG that may underlie recognition memory impairment. We found that the FG and ITG of fetuses with DS had a reduced thickness and fewer cells in comparison with euploid fetuses. Moreover, DS fetuses had fewer cells expressing the neuronal marker NeuN than euploid fetuses, but a similar number of cells expressing the astrocytic marker GFAP and, consequently, a higher percentage of astrocytes. Immunohistochemistry for calretinin (CR), a marker of GABAergic interneurons, showed that in DS fetuses the ratio of CR-positive vs. CR-negative cells was greater than in euploid fetuses, both in the FG (177%) and ITG (161%). An increased ratio of CR-positive vs. CR-negative cells was also found in the entorhinal cortex, hippocampus and dentate gyrus. Results provide novel evidence that the FG and ITG of DS fetuses exhibit numerous developmental defects. These defects may underlie the functional alterations in visual recognition memory observed in children with DS.
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Affiliation(s)
- Sandra Guidi
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy
| | - Andrea Giacomini
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy
| | - Fiorenza Stagni
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy
| | - Marco Emili
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy
| | - Beatrice Uguagliati
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy
| | | | - Renata Bartesaghi
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy
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Giacomini A, Stagni F, Emili M, Guidi S, Salvalai ME, Grilli M, Vidal-Sanchez V, Martinez-Cué C, Bartesaghi R. Treatment with corn oil improves neurogenesis and cognitive performance in the Ts65Dn mouse model of Down syndrome. Brain Res Bull 2018; 140:378-391. [PMID: 29935232 DOI: 10.1016/j.brainresbull.2018.06.009] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Revised: 06/07/2018] [Accepted: 06/18/2018] [Indexed: 12/12/2022]
Abstract
Individuals with Down syndrome (DS), a genetic condition due to triplication of Chromosome 21, are characterized by intellectual disability that worsens with age. Since impairment of neurogenesis and dendritic maturation are very likely key determinants of intellectual disability in DS, interventions targeted to these defects may translate into a behavioral benefit. While most of the neurogenesis enhancers tested so far in DS mouse models may pose some caveats due to possible side effects, substances naturally present in the human diet may be regarded as therapeutic tools with a high translational impact. Linoleic acid and oleic acid are major constituents of corn oil that positively affect neurogenesis and neuron maturation. Based on these premises, the goal of the current study was to establish whether treatment with corn oil improves hippocampal neurogenesis and hippocampus-dependent memory in the Ts65Dn model of DS. Four-month-old Ts65Dn and euploid mice were treated with saline or corn oil for 30 days. Evaluation of behavior at the end of treatment showed that Ts65Dn mice treated with corn oil underwent a large improvement in hippocampus-dependent learning and memory. Evaluation of neurogenesis and dendritogenesis showed that in treated Ts65Dn mice the number of new granule cells of the hippocampal dentate gyrus and their dendritic pattern became similar to those of euploid mice. In addition, treated Ts65Dn mice underwent an increase in body and brain weight. This study shows for the first time that fatty acids have a positive impact on the brain of the Ts65Dn mouse model of DS. These results suggest that a diet that is rich in fatty acids may exert beneficial effects on cognitive performance in individuals with DS without causing adverse effects.
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Affiliation(s)
- Andrea Giacomini
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy
| | - Fiorenza Stagni
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy
| | - Marco Emili
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy
| | - Sandra Guidi
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy
| | - Maria Elisa Salvalai
- Department of Pharmaceutical Sciences, University of Piemonte Orientale, Novara, Italy
| | - Mariagrazia Grilli
- Department of Pharmaceutical Sciences, University of Piemonte Orientale, Novara, Italy
| | - Veronica Vidal-Sanchez
- Department of Physiology and Pharmacology, School of Medicine, University of Cantabria, Santander, Spain
| | - Carmen Martinez-Cué
- Department of Physiology and Pharmacology, School of Medicine, University of Cantabria, Santander, Spain
| | - Renata Bartesaghi
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy.
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16
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Belluschi I, Moriggia S, Giacomini A, Del Forno B, Di Sanzo S, Blasio A, Scafuri A, Alfieri O. Can Perceval sutureless valve reduce the rate of patient-prosthesis mismatch?†. Eur J Cardiothorac Surg 2018; 51:1093-1099. [PMID: 28329177 DOI: 10.1093/ejcts/ezx009] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/30/2016] [Accepted: 12/17/2016] [Indexed: 11/13/2022] Open
Abstract
OBJECTIVES The aim of this study is to compare the theoretical incidence of patient-prosthesis mismatch (PPM) in patients undergoing a sutureless or a sutured aortic valve replacement using an exact statistical matching. METHODS Between May 2012 and March 2016, 65 patients with severe symptomatic aortic stenosis underwent a sutureless aortic valve replacement with the Perceval bioprosthesis in 2 centres. Moreover, 177 aortic valve replacements with conventional sutured bioprosthesis were performed between August 2003 and September 2015. Perceval and sutured patients were 1:1 exactly matched for sex and body surface area (BSA), resulting in 62 couples (sutureless: BSA 1.77 ± 0.16 m 2 , female 62.9% vs sutured: BSA 1.77 ± 0.15 m 2 , female 62.9%). RESULTS After matching, the indexed effective orifice area was 1.50 ± 0.18 cm 2 /m 2 and 0.81 ± 0.19 cm 2 /m 2 in the sutureless and the sutured group, respectively ( P < 0.001). No PPM occurred in patients who received a Perceval bioprosthesis ( n = 62). In the sutured group ( n = 62), 38 patients (61.3%) developed a PPM, which was moderate in 41.9% ( n = 26) and severe in 19.4% ( n = 12) ( P < 0.001). CONCLUSIONS The indexed effective orifice area of the sutureless group was significantly larger than in the sutured one. The incidence of PPM with the conventional sutured biprosthesis was 61.3%, while it decreases to 0% in the sutureless group. No PPM was reported in the sutureless valve group. Therefore, the Perceval sutureless valve provides larger effective orifice areas compared to the sutured conventional bioprosthesis and could be considered as a good option to reduce the risk of a PPM.
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Affiliation(s)
- Igor Belluschi
- Department of Cardiac Surgery, San Raffaele University Hospital, Milan, Italy
| | - Stefano Moriggia
- Department of Cardiac Surgery, San Raffaele University Hospital, Milan, Italy
| | - Andrea Giacomini
- Department of Cardiac Surgery, San Raffaele University Hospital, Milan, Italy
| | - Benedetto Del Forno
- Department of Cardiac Surgery, San Raffaele University Hospital, Milan, Italy
| | - Stefania Di Sanzo
- Department of Cardiac Surgery, San Raffaele University Hospital, Milan, Italy
| | - Andrea Blasio
- Department of Cardiac Surgery, San Raffaele University Hospital, Milan, Italy
| | - Antonio Scafuri
- Department of Cardiac Surgery, Tor Vergata University of Rome, Rome, Italy
| | - Ottavio Alfieri
- Department of Cardiac Surgery, San Raffaele University Hospital, Milan, Italy
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17
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Nadai C, Bovo B, Giacomini A, Corich V. New rapid
PCR
protocol based on high‐resolution melting analysis to identify
Saccharomyces cerevisiae
and other species within its genus. J Appl Microbiol 2018; 124:1232-1242. [DOI: 10.1111/jam.13709] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2017] [Revised: 01/08/2018] [Accepted: 01/15/2018] [Indexed: 12/16/2022]
Affiliation(s)
- C. Nadai
- Department of Agronomy Food Natural resources Animals and Environment (DAFNAE) University of Padova Legnaro PD Italy
| | - B. Bovo
- Department of Agronomy Food Natural resources Animals and Environment (DAFNAE) University of Padova Legnaro PD Italy
| | - A. Giacomini
- Department of Agronomy Food Natural resources Animals and Environment (DAFNAE) University of Padova Legnaro PD Italy
- Interdepartmental Centre for Research in Viticulture and Enology (CIRVE) University of Padova Conegliano TV Italy
| | - V. Corich
- Department of Agronomy Food Natural resources Animals and Environment (DAFNAE) University of Padova Legnaro PD Italy
- Interdepartmental Centre for Research in Viticulture and Enology (CIRVE) University of Padova Conegliano TV Italy
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18
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De Bonis M, Lapenna E, Giambuzzi I, Meneghin R, Affronti G, Pappalardo F, Castiglioni A, Trumello C, Buzzatti N, Giacomini A, Raimondi Lucchetti M, Alfieri O. Second cross-clamping after mitral valve repair for degenerative disease in contemporary practice†. Eur J Cardiothorac Surg 2018; 54:91-97. [DOI: 10.1093/ejcts/ezx507] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/14/2017] [Accepted: 12/21/2017] [Indexed: 11/13/2022] Open
Affiliation(s)
- Michele De Bonis
- Department of Cardiac Surgery, IRCCS San Raffaele Hospital, Vita-Salute San Raffaele University, Milan, Italy
| | - Elisabetta Lapenna
- Department of Cardiac Surgery, IRCCS San Raffaele Hospital, Vita-Salute San Raffaele University, Milan, Italy
| | - Ilaria Giambuzzi
- Department of Cardiac Surgery, IRCCS San Raffaele Hospital, Vita-Salute San Raffaele University, Milan, Italy
| | - Roberta Meneghin
- Department of Cardiac Surgery, IRCCS San Raffaele Hospital, Vita-Salute San Raffaele University, Milan, Italy
| | - Giovanni Affronti
- Department of Cardiac Surgery, IRCCS San Raffaele Hospital, Vita-Salute San Raffaele University, Milan, Italy
| | - Federico Pappalardo
- Department of Cardiac Surgery, IRCCS San Raffaele Hospital, Vita-Salute San Raffaele University, Milan, Italy
| | - Alessandro Castiglioni
- Department of Cardiac Surgery, IRCCS San Raffaele Hospital, Vita-Salute San Raffaele University, Milan, Italy
| | - Cinzia Trumello
- Department of Cardiac Surgery, IRCCS San Raffaele Hospital, Vita-Salute San Raffaele University, Milan, Italy
| | - Nicola Buzzatti
- Department of Cardiac Surgery, IRCCS San Raffaele Hospital, Vita-Salute San Raffaele University, Milan, Italy
| | - Andrea Giacomini
- Department of Cardiac Surgery, IRCCS San Raffaele Hospital, Vita-Salute San Raffaele University, Milan, Italy
| | - Marcello Raimondi Lucchetti
- Department of Cardiac Surgery, IRCCS San Raffaele Hospital, Vita-Salute San Raffaele University, Milan, Italy
| | - Ottavio Alfieri
- Department of Cardiac Surgery, IRCCS San Raffaele Hospital, Vita-Salute San Raffaele University, Milan, Italy
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19
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Stagni F, Giacomini A, Emili M, Guidi S, Bartesaghi R. Neurogenesis impairment: An early developmental defect in Down syndrome. Free Radic Biol Med 2018; 114:15-32. [PMID: 28756311 DOI: 10.1016/j.freeradbiomed.2017.07.026] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/28/2017] [Revised: 07/24/2017] [Accepted: 07/25/2017] [Indexed: 02/06/2023]
Abstract
Down syndrome (DS) is characterized by brain hypotrophy and intellectual disability starting from early life stages. Accumulating evidence shows that the phenotypic features of the DS brain can be traced back to the fetal period since the DS brain exhibits proliferation potency reduction starting from the critical time window of fetal neurogenesis. This defect is worsened by the fact that neural progenitor cells exhibit reduced acquisition of a neuronal phenotype and an increase in the acquisition of an astrocytic phenotype. Consequently, the DS brain has fewer neurons in comparison with the typical brain. Although apoptotic cell death may be increased in DS, this does not seem to be the major cause of brain hypocellularity. Evidence obtained in brains of individuals with DS, DS-derived induced pluripotent stem cells (iPSCs), and DS mouse models has provided some insight into the mechanisms underlying the developmental defects due to the trisomic condition. Although many triplicated genes may be involved, in the light of the studies reviewed here, DYRK1A, APP, RCAN1 and OLIG1/2 appear to be particularly important determinants of many neurodevelopmental alterations that characterize DS because their triplication affects both the proliferation and fate of neural precursor cells as well as apoptotic cell death. Based on the evidence reviewed here, pathways downstream to these genes may represent strategic targets, for the design of possible interventions.
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Affiliation(s)
- Fiorenza Stagni
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy
| | - Andrea Giacomini
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy
| | - Marco Emili
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy
| | - Sandra Guidi
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy
| | - Renata Bartesaghi
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy.
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20
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Stagni F, Giacomini A, Guidi S, Emili M, Uguagliati B, Salvalai ME, Bortolotto V, Grilli M, Rimondini R, Bartesaghi R. A flavonoid agonist of the TrkB receptor for BDNF improves hippocampal neurogenesis and hippocampus-dependent memory in the Ts65Dn mouse model of DS. Exp Neurol 2017; 298:79-96. [DOI: 10.1016/j.expneurol.2017.08.018] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2017] [Revised: 08/24/2017] [Accepted: 08/31/2017] [Indexed: 12/31/2022]
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21
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Abstract
Mitral valve prosthetic ring annuloplasty represents a key milestone in the history of mitral valve repair, delivering restoration of annular shape and size. Increased leaflet coaptation, together with significant reduction in stress on sutures, has ensured predictability and immediate stability for valve repair, both of which were lacking with previous techniques. Long-term durability of repair seems to be positively affected by placement of an annuloplasty ring, and by following the well-established, standardized approach described in our tutorial, this procedure can be performed with a very low surgical risk.
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Affiliation(s)
- Benedetto Del Forno
- Cardiac Surgery Unit San Raffaele Hospital - Scientific Institute Via Olgettina, 60 20132. Milano, Italy
| | | | - Alessandra Sala
- Cardiac Surgery Unit, San Raffaele Hospital - Scientific Institute, Milano, Italy
| | - Alberto Geretto
- Cardiac Surgery Unit, San Raffaele Hospital - Scientific Institute, Milano, Italy
| | | | | | - Michele De Bonis
- Cardiac Surgery Unit, San Raffaele Hospital - Scientific Institute, Milano, Italy
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22
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Lemos Junior WJF, Viel A, Bovo B, Carlot M, Giacomini A, Corich V. Saccharomyces cerevisiae vineyard strains have different nitrogen requirements that affect their fermentation performances. Lett Appl Microbiol 2017; 65:381-387. [PMID: 28862747 DOI: 10.1111/lam.12798] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2017] [Revised: 08/21/2017] [Accepted: 08/23/2017] [Indexed: 01/01/2023]
Abstract
In this work the fermentation performances of seven vineyard strains, together with the industrial strain EC1118, have been investigated at three differing yeast assimilable nitrogen (YAN) concentrations (300 mg N l-1 , 150 mg N l-1 and 70 mg N l-1 ) in synthetic musts. The results indicated that the response to different nitrogen levels is strain dependent. Most of the strains showed a dramatic decrease of the fermentation at 70 mg N l-1 but no significant differences in CO2 production were found when fermentations at 300 mg N l-1 and 150 mg N l-1 were compared. Only one among the vineyard strains showed a decrease of the fermentation when 150 mg N l-1 were present in the must. These results contribute to shed light on strain nitrogen requirements and offer new perspectives to manage the fermentation process during winemaking. SIGNIFICANCE AND IMPACT OF THE STUDY Selected vineyard Saccharomyces cerevisiae strains can improve the quality and the complexity of local wines. Wine quality is also influenced by nitrogen availability that modulates yeast fermentation activity. In this work, yeast nitrogen assimilation was evaluated to clarify the nitrogen requirements of vineyard strains. Most of the strains needed high nitrogen levels to express the best fermentation performances. The results obtained indicate the critical nitrogen levels. When the nitrogen concentration was above the critical level, the fermentation process increased, but if the level of nitrogen was further increased no effect on the fermentation was found.
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Affiliation(s)
- W J F Lemos Junior
- Department of Agronomy Food Natural Resources Animals and Environment (DAFNAE), University of Padova, Padova, Italy
| | - A Viel
- Interdepartmental Centre for Research in Viticulture and Enology (CIRVE), University of Padova, Conegliano, Italy
| | - B Bovo
- Department of Agronomy Food Natural Resources Animals and Environment (DAFNAE), University of Padova, Padova, Italy.,Interdepartmental Centre for Research in Viticulture and Enology (CIRVE), University of Padova, Conegliano, Italy
| | - M Carlot
- Interdepartmental Centre for Research in Viticulture and Enology (CIRVE), University of Padova, Conegliano, Italy
| | - A Giacomini
- Department of Agronomy Food Natural Resources Animals and Environment (DAFNAE), University of Padova, Padova, Italy.,Interdepartmental Centre for Research in Viticulture and Enology (CIRVE), University of Padova, Conegliano, Italy
| | - V Corich
- Department of Agronomy Food Natural Resources Animals and Environment (DAFNAE), University of Padova, Padova, Italy.,Interdepartmental Centre for Research in Viticulture and Enology (CIRVE), University of Padova, Conegliano, Italy
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De Bonis M, Lapenna E, Del Forno B, Di Sanzo S, Giacomini A, Schiavi D, Vicentini L, Latib A, Pozzoli A, Pappalardo F, La Canna G, Alfieri O. Minimally invasive or conventional edge-to-edge repair for severe mitral regurgitation due to bileaflet prolapse in Barlow’s disease: does the surgical approach have an impact on the long-term results?†. Eur J Cardiothorac Surg 2017; 52:131-136. [DOI: 10.1093/ejcts/ezx032] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/04/2016] [Accepted: 01/03/2017] [Indexed: 11/14/2022] Open
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Stagni F, Giacomini A, Emili M, Guidi S, Ciani E, Bartesaghi R. Epigallocatechin gallate: A useful therapy for cognitive disability in Down syndrome? Neurogenesis (Austin) 2017; 4:e1270383. [PMID: 28203607 DOI: 10.1080/23262133.2016.1270383] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2016] [Revised: 11/14/2016] [Accepted: 12/02/2016] [Indexed: 10/20/2022]
Abstract
Neurodevelopmental alterations and cognitive disability are constant features of Down syndrome (DS), a genetic condition due to triplication of chromosome 21. DYRK1A is one of the triplicated genes that is thought to be strongly involved in brain alterations. Treatment of Dyrk1A transgenic mice with epigallocatechin gallate (EGCG), an inhibitor of DYRK1A, improves cognitive performance, suggesting that EGCG may represent a suitable treatment of DS. Evidence in the Ts65Dn mouse model of DS shows that EGCG restores hippocampal development, although this effect is ephemeral. Other studies, however, show no effects of treatment on hippocampus-dependent memory. On the other hand, a pilot study in young adults with DS shows that EGCG transiently improves some aspects of memory. Interestingly, EGCG plus cognitive training engenders effects that are more prolonged. Studies in various rodent models show a positive impact of EGCG on brain and behavior, but other studies show no effect. In spite of these discrepancies, possibly due to heterogeneity of protocols/timing/species, EGCG seems to exert some beneficial effects on the brain. It is possible that protocols of periodic EGCG administration to individuals with DS (alone or in conjunction with other treatments) may prevent the disappearance of its effects.
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Affiliation(s)
- Fiorenza Stagni
- Department of Biomedical and Neuromotor Sciences, University of Bologna , Bologna, Italy
| | - Andrea Giacomini
- Department of Biomedical and Neuromotor Sciences, University of Bologna , Bologna, Italy
| | - Marco Emili
- Department of Biomedical and Neuromotor Sciences, University of Bologna , Bologna, Italy
| | - Sandra Guidi
- Department of Biomedical and Neuromotor Sciences, University of Bologna , Bologna, Italy
| | - Elisabetta Ciani
- Department of Biomedical and Neuromotor Sciences, University of Bologna , Bologna, Italy
| | - Renata Bartesaghi
- Department of Biomedical and Neuromotor Sciences, University of Bologna , Bologna, Italy
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Thoeni K, Guccione DE, Santise M, Giacomini A, Roncella R, Forlani G. THE POTENTIAL OF LOW-COST RPAS FOR MULTI-VIEW RECONSTRUCTION OF SUB-VERTICAL ROCK FACES. ACTA ACUST UNITED AC 2016. [DOI: 10.5194/isprsarchives-xli-b5-909-2016] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
The current work investigates the potential of two low-cost off-the-shelf quadcopters for multi-view reconstruction of sub-vertical rock faces. The two platforms used are a DJI Phantom 1 equipped with a Gopro Hero 3+ Black and a DJI Phantom 3 Professional with integrated camera. The study area is a small sub-vertical rock face. Several flights were performed with both cameras set in time-lapse mode. Hence, images were taken automatically but the flights were performed manually as the investigated rock face is very irregular which required manual adjustment of the yaw and roll for optimal coverage. The digital images were processed with commercial SfM software packages. Several processing settings were investigated in order to find out the one providing the most accurate 3D reconstruction of the rock face. To this aim, all 3D models produced with both platforms are compared to a point cloud obtained with a terrestrial laser scanner. Firstly, the difference between the use of coded ground control targets and the use of natural features was studied. Coded targets generally provide the best accuracy, but they need to be placed on the surface, which is not always possible, as sub-vertical rock faces are not easily accessible. Nevertheless, natural features can provide a good alternative if wisely chosen as shown in this work. Secondly, the influence of using fixed interior orientation parameters or self-calibration was investigated. The results show that, in the case of the used sensors and camera networks, self-calibration provides better results. To support such empirical finding, a numerical investigation using a Monte Carlo simulation was performed.
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Meraviglia V, Ulivi AF, Boccazzi M, Valenza F, Fratangeli A, Passafaro M, Lecca D, Stagni F, Giacomini A, Bartesaghi R, Abbracchio MP, Ceruti S, Rosa P. SNX27, a protein involved in down syndrome, regulates GPR17 trafficking and oligodendrocyte differentiation. Glia 2016; 64:1437-60. [DOI: 10.1002/glia.23015] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2015] [Revised: 05/11/2016] [Accepted: 05/13/2016] [Indexed: 12/26/2022]
Affiliation(s)
- Veronica Meraviglia
- CNR - Institute of Neuroscience, Department of Medical Biotechnologies and Translational Medicine (BIOMETRA); Università Degli Studi Di Milano; Milan Italy
| | - Alessandro Francesco Ulivi
- CNR - Institute of Neuroscience, Department of Medical Biotechnologies and Translational Medicine (BIOMETRA); Università Degli Studi Di Milano; Milan Italy
| | - Marta Boccazzi
- Laboratory of Molecular and Cellular Pharmacology of Purinergic Transmission, Department of Pharmacological and Biomolecular Sciences (DiSFeB); Università Degli Studi Di Milano; Milan Italy
| | - Fabiola Valenza
- CNR - Institute of Neuroscience, Department of Medical Biotechnologies and Translational Medicine (BIOMETRA); Università Degli Studi Di Milano; Milan Italy
| | - Alessandra Fratangeli
- CNR - Institute of Neuroscience, Department of Medical Biotechnologies and Translational Medicine (BIOMETRA); Università Degli Studi Di Milano; Milan Italy
| | - Maria Passafaro
- CNR - Institute of Neuroscience, Department of Medical Biotechnologies and Translational Medicine (BIOMETRA); Università Degli Studi Di Milano; Milan Italy
| | - Davide Lecca
- Laboratory of Molecular and Cellular Pharmacology of Purinergic Transmission, Department of Pharmacological and Biomolecular Sciences (DiSFeB); Università Degli Studi Di Milano; Milan Italy
| | - Fiorenza Stagni
- Department of Biomedical and Neuromotor Sciences; Università Degli Studi Di Bologna; Bologna Italy
| | - Andrea Giacomini
- Department of Biomedical and Neuromotor Sciences; Università Degli Studi Di Bologna; Bologna Italy
| | - Renata Bartesaghi
- Department of Biomedical and Neuromotor Sciences; Università Degli Studi Di Bologna; Bologna Italy
| | - Maria P. Abbracchio
- Laboratory of Molecular and Cellular Pharmacology of Purinergic Transmission, Department of Pharmacological and Biomolecular Sciences (DiSFeB); Università Degli Studi Di Milano; Milan Italy
| | - Stefania Ceruti
- Laboratory of Molecular and Cellular Pharmacology of Purinergic Transmission, Department of Pharmacological and Biomolecular Sciences (DiSFeB); Università Degli Studi Di Milano; Milan Italy
| | - Patrizia Rosa
- CNR - Institute of Neuroscience, Department of Medical Biotechnologies and Translational Medicine (BIOMETRA); Università Degli Studi Di Milano; Milan Italy
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De Bonis M, Lapenna E, Barili F, Nisi T, Calabrese M, Pappalardo F, La Canna G, Pozzoli A, Buzzatti N, Giacomini A, Alati E, Alfieri O. Long-term results of mitral repair in patients with severe left ventricular dysfunction and secondary mitral regurgitation: does the technique matter? Eur J Cardiothorac Surg 2016; 50:882-889. [DOI: 10.1093/ejcts/ezw139] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/15/2015] [Accepted: 03/04/2016] [Indexed: 11/13/2022] Open
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De Bonis M, Lapenna E, Pozzoli A, Nisi T, Giacomini A, Calabrese M, La Canna G, Pappalardo F, Miceli A, Glauber M, Barili F, Alfieri O. Mitral Valve Repair Without Repair of Moderate Tricuspid Regurgitation. Ann Thorac Surg 2015; 100:2206-12. [DOI: 10.1016/j.athoracsur.2015.05.108] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/28/2015] [Revised: 05/15/2015] [Accepted: 05/18/2015] [Indexed: 11/29/2022]
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Stagni F, Giacomini A, Guidi S, Ciani E, Bartesaghi R. Timing of therapies for Down syndrome: the sooner, the better. Front Behav Neurosci 2015; 9:265. [PMID: 26500515 PMCID: PMC4594009 DOI: 10.3389/fnbeh.2015.00265] [Citation(s) in RCA: 73] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2015] [Accepted: 09/15/2015] [Indexed: 11/13/2022] Open
Abstract
Intellectual disability (ID) is the unavoidable hallmark of Down syndrome (DS), with a heavy impact on public health. Accumulating evidence shows that DS is characterized by numerous neurodevelopmental alterations among which the reduction of neurogenesis, dendritic hypotrophy and connectivity alterations appear to play a particularly prominent role. Although the mechanisms whereby gene triplication impairs brain development in DS have not been fully clarified, it is theoretically possible to correct trisomy-dependent defects with targeted pharmacotherapies. This review summarizes what we know about the effects of pharmacotherapies during different life stages in mouse models of DS. Since brain alterations in DS start to be present prenatally, the prenatal period represents an optimum window of opportunity for therapeutic interventions. Importantly, recent studies clearly show that treatment during the prenatal period can rescue overall brain development and behavior and that this effect outlasts treatment cessation. Although late therapies are unlikely to exert drastic changes in the brain, they may have an impact on the hippocampus, a brain region where neurogenesis continues throughout life. Indeed, treatment at adult life stages improves or even rescues hippocampal neurogenesis and connectivity and hippocampal-dependent learning and memory, although the duration of these effects still remains, in the majority of cases, a matter of investigation. The exciting discovery that trisomy-linked brain abnormalities can be prevented with early interventions gives us reason to believe that treatments during pregnancy may rescue brain development in fetuses with DS. For this reason we deem it extremely important to expedite the discovery of additional therapies practicable in humans in order to identify the best treatment/s in terms of efficacy and paucity of side effects. Prompt achievement of this goal is the big challenge for the scientific community of researchers interested in DS.
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Affiliation(s)
| | | | | | | | - Renata Bartesaghi
- Department of Biomedical and Neuromotor Sciences, University of BolognaBologna, Italy
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Giacomini A, Stagni F, Trazzi S, Guidi S, Emili M, Brigham E, Ciani E, Bartesaghi R. Inhibition of APP gamma-secretase restores Sonic Hedgehog signaling and neurogenesis in the Ts65Dn mouse model of Down syndrome. Neurobiol Dis 2015; 82:385-396. [PMID: 26254735 PMCID: PMC4768084 DOI: 10.1016/j.nbd.2015.08.001] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [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: 05/15/2015] [Revised: 07/10/2015] [Accepted: 08/01/2015] [Indexed: 11/28/2022] Open
Abstract
Neurogenesis impairment starting from early developmental stages is a key determinant of intellectual disability in Down syndrome (DS). Previous evidence provided a causal relationship between neurogenesis impairment and malfunctioning of the mitogenic Sonic Hedgehog (Shh) pathway. In particular, excessive levels of AICD (amyloid precursor protein intracellular domain), a cleavage product of the trisomic gene APP (amyloid precursor protein) up-regulate transcription of Ptch1 (Patched1), the Shh receptor that keeps the pathway repressed. Since AICD results from APP cleavage by γ-secretase, the goal of the current study was to establish whether treatment with a γ-secretase inhibitor normalizes AICD levels and restores neurogenesis in trisomic neural precursor cells. We found that treatment with a selective γ-secretase inhibitor (ELND006; ELN) restores proliferation in neurospheres derived from the subventricular zone (SVZ) of the Ts65Dn mouse model of DS. This effect was accompanied by reduction of AICD and Ptch1 levels and was prevented by inhibition of the Shh pathway with cyclopamine. Treatment of Ts65Dn mice with ELN in the postnatal period P3–P15 restored neurogenesis in the SVZ and hippocampus, hippocampal granule cell number and synapse development, indicating a positive impact of treatment on brain development. In addition, in the hippocampus of treated Ts65Dn mice there was a reduction in the expression levels of various genes that are transcriptionally regulated by AICD, including APP, its origin substrate. Inhibitors of γ-secretase are currently envisaged as tools for the cure of Alzheimer's disease because they lower βamyloid levels. Current results provide novel evidence that γ-secretase inhibitors may represent a strategy for the rescue of neurogenesis defects in DS. Derangement of the mitogenic Shh pathway reduces neurogenesis in Down syndrome (DS). APP triplication causes excessive formation of its cleavage products AICD. AICD causes excessive transcription of Ptch1, the repressor of the Shh pathway. ELND006, a gamma secretase inhibitor, reduces AICD levels and Ptch1 expression. Treatment with ELND006 restores neurogenesis in the Ts65Dn mouse model of DS.
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Affiliation(s)
- Andrea Giacomini
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy
| | - Fiorenza Stagni
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy
| | - Stefania Trazzi
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy
| | - Sandra Guidi
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy
| | - Marco Emili
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy
| | | | - Elisabetta Ciani
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy
| | - Renata Bartesaghi
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy.
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De Bonis M, Taramasso M, Lapenna E, Denti P, La Canna G, Buzzatti N, Pappalardo F, Di Giannuario G, Cioni M, Giacomini A, Alfieri O. MitraClip therapy and surgical edge-to-edge repair in patients with severe left ventricular dysfunction and secondary mitral regurgitation: mid-term results of a single-centre experience†. Eur J Cardiothorac Surg 2015; 49:255-62. [PMID: 25669650 DOI: 10.1093/ejcts/ezv043] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/14/2014] [Accepted: 01/12/2015] [Indexed: 11/12/2022] Open
Abstract
OBJECTIVES To compare the surgical and percutaneous edge-to-edge (EE) repair in patients with severe left ventricular (LV) dysfunction and secondary mitral regurgitation (MR). METHODS We reviewed the prospectively collected data of the first 120 consecutive patients (age: 65 ± 9.8 years, EF: 28 ± 8.2%) treated with surgical (65 patients) or percutaneous (55 patients) EE repair for severe secondary MR in our institution. Age (P = 0.005) and logistic European System for Cardiac Operative Risk Evaluation (P < 0.0001) were significantly higher in the MitraClip group. LVEF (P = 0.37), end-diastolic (P = 0.83) and end-systolic (P = 0.68) volumes and systolic pulmonary artery pressure (SPAP) (P = 0.58) were similar. The follow-up was 100% complete [median: 4 years; interquartile range (IQR): 2.2-7.2]. RESULTS The length of hospital stay was 10 days (IQR: 8-13) for surgery and 5 days (IQR: 3.9-7.8) for MitraClip (P < 0.0001). Hospital mortality (3 vs 0%, P = 0.49) and freedom from cardiac death at 4 years (80.8 ± 4.9% vs 79.1 ± 5.9%, P = 0.9) were not significantly different in the surgical and MitraClip group, respectively. Residual MR ≥ 2+ at hospital discharge was 7.6% for surgery and 29% for MitraClip (P = 0.002). At 4 years, freedom from MR ≥ 2+ (74.9 ± 5.6% vs 51.4 ± 7.4%, P = 0.01) and freedom from MR ≥ 3+ (92.8 ± 3.4% vs 68.1 ± 7%, P = 0.002) were both significantly higher in the surgical group. Multivariate analysis identified the use of MitraClip as an independent predictor of recurrence of MR ≥ 2+ [Hazard ratio (HR): 2.1, 95% confidence interval (CI): 1.1-3.9, P = 0.02] as well as of MR ≥ 3 (HR: 6.1, 95% CI: 1.5-24.3, P = 0.01). In the surgical group, no predictors of cardiac mortality were identified. In the MitraClip group, left ventricular end-diastolic diameter (HR: 1.1, 95% CI: 1-1.2, P = 0.005) and SPAP (HR: 1, 95% CI: 1-1.1, P = 0.005) were independent predictors of cardiac death at the follow-up. CONCLUSIONS MitraClip therapy is a safe therapeutic option in selected high-risk patients with secondary MR and relevant comorbidities. The surgical EE provides higher efficacy both postoperatively and at the mid-term follow-up.
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Affiliation(s)
- Michele De Bonis
- Department of Cardiac Surgery, IRCCS San Raffaele Institute, Milan, Italy
| | - Maurizio Taramasso
- Department of Cardiac Surgery, IRCCS San Raffaele Institute, Milan, Italy
| | - Elisabetta Lapenna
- Department of Cardiac Surgery, IRCCS San Raffaele Institute, Milan, Italy
| | - Paolo Denti
- Department of Cardiac Surgery, IRCCS San Raffaele Institute, Milan, Italy
| | - Giovanni La Canna
- Department of Cardiac Surgery, IRCCS San Raffaele Institute, Milan, Italy
| | - Nicola Buzzatti
- Department of Cardiac Surgery, IRCCS San Raffaele Institute, Milan, Italy
| | | | | | - Micaela Cioni
- Department of Cardiac Surgery, IRCCS San Raffaele Institute, Milan, Italy
| | - Andrea Giacomini
- Department of Cardiac Surgery, IRCCS San Raffaele Institute, Milan, Italy
| | - Ottavio Alfieri
- Department of Cardiac Surgery, IRCCS San Raffaele Institute, Milan, Italy
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De Bonis M, Lapenna E, Nisi T, Giacomini A, Calabrese M, Miceli A, Alfieri O, Glauber M. 216 * UNTREATED MILD TO MODERATE TRICUSPID REGURGITATION IN DILATED CARDIOMYOPATHY PATIENTS SUBMITTED TO MITRAL REPAIR: WHAT HAPPENS AT LONG-TERM? Interact Cardiovasc Thorac Surg 2014. [DOI: 10.1093/icvts/ivu276.216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Loi M, Becherini P, Emionite L, Giacomini A, Cossu I, Destefanis E, Brignole C, Di Paolo D, Piaggio F, Perri P, Cilli M, Pastorino F, Ponzoni M. sTRAIL coupled to liposomes improves its pharmacokinetic profile and overcomes neuroblastoma tumour resistance in combination with Bortezomib. J Control Release 2014; 192:157-66. [PMID: 25041999 DOI: 10.1016/j.jconrel.2014.07.009] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2014] [Revised: 07/08/2014] [Accepted: 07/10/2014] [Indexed: 01/26/2023]
Abstract
Neuroblastoma (NB), the most common and deadly extracranial solid tumour of childhood, represents a challenging in paediatric oncology. Soluble tumour necrosis factor (TNF)-related apoptosis-inducing ligand (sTRAIL) is a cancer cell-specific molecule exerting remarkable anti-tumour activities against paediatric malignancies both in vitro and in preclinical settings. However, due to its too fast elimination and to the undesired related side effects, the improvement of sTRAIL in vivo bioavailability and the specific delivery to the tumour is mandatory for increasing its therapeutic efficacy. In this manuscript, we developed an innovative pegylated liposomal formulation carrying the sTRAIL at the outer surface (sTRAIL-SL) with the intent to improve its serum half-life and increase its efficacy in vivo, while reducing side effects. Furthermore, the possibility to combine sTRAIL-SL with the proteasome inhibitor Bortezomib (BTZ) was investigated, being BTZ able to sensitize tumour cells toward TRAIL-induced apoptosis. We demonstrated that sTRAIL preserved and improved its anti-tumour activity when coupled to nanocarriers. Moreover, sTRAIL-SL ameliorated its PK profile in blood allowing sTRAIL to exert a more potent anti-tumour activity, which led, upon BTZ priming, to a statistically significant enhanced life spans in two models of sTRAIL-resistant NB-bearing mice. Finally, mechanistic studies indicated that the combination of sTRAIL with BTZ sensitized sTRAIL-resistant NB tumour cells to sTRAIL-induced cell death, both in vitro and in vivo, through the Akt/GSK3/β-catenin axis-dependent mechanism. In conclusion, our results suggest that sTRAIL-SL might be an efficient vehicle for sTRAIL delivery and that its use in clinic, in combination with BTZ, might represent an adjuvant strategy for the treatment of stage IV, sTRAIL-resistant, NB patients.
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Affiliation(s)
- M Loi
- Laboratorio di Oncologia, Istituto Giannina Gaslini, Genova 16148, Italy
| | - P Becherini
- Laboratorio di Oncologia, Istituto Giannina Gaslini, Genova 16148, Italy
| | - L Emionite
- Animal Facility, IRCCS Azienda Ospedaliera Universitaria San Martino-IST Istituto Nazionale per la Ricerca sul Cancro, Genoa, Italy
| | - A Giacomini
- Experimental Oncology and Immunology, Department of Molecular and Translational Medicine, University of Brescia, Italy
| | - I Cossu
- Laboratorio di Oncologia, Istituto Giannina Gaslini, Genova 16148, Italy
| | - E Destefanis
- Laboratorio di Oncologia, Istituto Giannina Gaslini, Genova 16148, Italy
| | - C Brignole
- Laboratorio di Oncologia, Istituto Giannina Gaslini, Genova 16148, Italy
| | - D Di Paolo
- Laboratorio di Oncologia, Istituto Giannina Gaslini, Genova 16148, Italy
| | - F Piaggio
- Laboratorio di Oncologia, Istituto Giannina Gaslini, Genova 16148, Italy
| | - P Perri
- Laboratorio di Oncologia, Istituto Giannina Gaslini, Genova 16148, Italy
| | - M Cilli
- Animal Facility, IRCCS Azienda Ospedaliera Universitaria San Martino-IST Istituto Nazionale per la Ricerca sul Cancro, Genoa, Italy
| | - F Pastorino
- Laboratorio di Oncologia, Istituto Giannina Gaslini, Genova 16148, Italy.
| | - M Ponzoni
- Laboratorio di Oncologia, Istituto Giannina Gaslini, Genova 16148, Italy.
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Guidi S, Stagni F, Bianchi P, Ciani E, Giacomini A, De Franceschi M, Moldrich R, Kurniawan N, Mardon K, Giuliani A, Calzà L, Bartesaghi R. Prenatal pharmacotherapy rescues brain development in a Down's syndrome mouse model. ACTA ACUST UNITED AC 2013; 137:380-401. [PMID: 24334313 DOI: 10.1093/brain/awt340] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.1] [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: 11/13/2022]
Abstract
Intellectual impairment is a strongly disabling feature of Down's syndrome, a genetic disorder of high prevalence (1 in 700-1000 live births) caused by trisomy of chromosome 21. Accumulating evidence shows that widespread neurogenesis impairment is a major determinant of abnormal brain development and, hence, of intellectual disability in Down's syndrome. This defect is worsened by dendritic hypotrophy and connectivity alterations. Most of the pharmacotherapies designed to improve cognitive performance in Down's syndrome have been attempted in Down's syndrome mouse models during adult life stages. Yet, as neurogenesis is mainly a prenatal event, treatments aimed at correcting neurogenesis failure in Down's syndrome should be administered during pregnancy. Correction of neurogenesis during the very first stages of brain formation may, in turn, rescue improper brain wiring. The aim of our study was to establish whether it is possible to rescue the neurodevelopmental alterations that characterize the trisomic brain with a prenatal pharmacotherapy with fluoxetine, a drug that is able to restore post-natal hippocampal neurogenesis in the Ts65Dn mouse model of Down's syndrome. Pregnant Ts65Dn females were treated with fluoxetine from embryonic Day 10 until delivery. On post-natal Day 2 the pups received an injection of 5-bromo-2-deoxyuridine and were sacrificed after either 2 h or after 43 days (at the age of 45 days). Untreated 2-day-old Ts65Dn mice exhibited a severe neurogenesis reduction and hypocellularity throughout the forebrain (subventricular zone, subgranular zone, neocortex, striatum, thalamus and hypothalamus), midbrain (mesencephalon) and hindbrain (cerebellum and pons). In embryonically treated 2-day-old Ts65Dn mice, precursor proliferation and cellularity were fully restored throughout all brain regions. The recovery of proliferation potency and cellularity was still present in treated Ts65Dn 45-day-old mice. Moreover, embryonic treatment restored dendritic development, cortical and hippocampal synapse development and brain volume. Importantly, these effects were accompanied by recovery of behavioural performance. The cognitive deficits caused by Down's syndrome have long been considered irreversible. The current study provides novel evidence that a pharmacotherapy with fluoxetine during embryonic development is able to fully rescue the abnormal brain development and behavioural deficits that are typical of Down's syndrome. If the positive effects of fluoxetine on the brain of a mouse model are replicated in foetuses with Down's syndrome, fluoxetine, a drug usable in humans, may represent a breakthrough for the therapy of intellectual disability in Down's syndrome.
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Affiliation(s)
- Sandra Guidi
- 1 Department of Biomedical and Neuromotor Sciences, University of Bologna, Italy
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Affiliation(s)
- Michele De Bonis
- Department of Cardiac Surgery, San Raffaele Scientific Institute, Milan, Italy.
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Latib A, Maisano F, Bertoldi L, Giacomini A, Shannon J, Cioni M, Ielasi A, Figini F, Tagaki K, Franco A, Covello RD, Grimaldi A, Spagnolo P, Buchannan GL, Carlino M, Chieffo A, Montorfano M, Alfieri O, Colombo A. Transcatheter vs surgical aortic valve replacement in intermediate-surgical-risk patients with aortic stenosis: a propensity score-matched case-control study. Am Heart J 2012. [PMID: 23194492 DOI: 10.1016/j.ahj.2012.09.005] [Citation(s) in RCA: 95] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
BACKGROUND Limited real-world data comparing outcomes after transcatheter (TAVR) and surgical aortic valve replacement (SAVR) in intermediate-surgical-risk patients with aortic stenosis are available. METHODS We identified 182 consecutive patients who underwent TAVR via the transfemoral (TF) route (November 2007-February 2011) and 111 moderate-to-high-risk historical case controls undergoing SAVR (August 2003-July 2008). Using propensity score matching based on clinical characteristics and surgical risk scores, we compared clinical outcomes in 111 matched patients. Valve Academic Research Consortium definitions were applied for end point adjudication. RESULTS Baseline clinical characteristics, in particular Logistic European System for Cardiac Operative Risk Evaluation (23.2 ± 15.1 vs 24.4 ± 13.4) and Society of Thoracic Surgeons score (4.6 ± 2.3 vs 4.6 ± 2.6), were well matched between groups. Transfemoral TAVR was associated with more vascular complications (33.3% vs 0.9%, P < .001). On the other hand, acute kidney injury was more frequent after SAVR (8.1% vs 26.1%, P < .001). The rates of all-cause mortality in both TF-TAVR and SAVR groups was1.8% at 30 days (P = 1.00) and 6.4% and 8.1%, respectively, at 1 year (P = .80). At 1 year, the rate of cerebrovascular events was similar in the 2 groups (4.6% vs 9.1%, P = .19). CONCLUSIONS In this real-world cohort of intermediate-surgical-risk patients with aortic stenosis, TF-TAVR and SAVR were associated with similar mortality rates during follow-up but with a different spectrum of periprocedural complications. Furthermore, the survival rate after TF-TAVR in this group of elderly patients with intermediate Society of Thoracic Surgeons score was encouraging.
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Maisano F, La Canna G, Latib A, Godino C, Denti P, Buzzatti N, Taramasso M, Cioni M, Giacomini A, Colombo A, Alfieri O. Transseptal access for MitraClip® procedures using surgical diathermy under echocardiographic guidance. EUROINTERVENTION 2012; 8:579-86. [DOI: 10.4244/eijv8i5a89] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Giacomini A, Lavazza C, Grazia G, Locatelli S, Cleris L, Righi M, Gianni A, Carlo-Stella C. 960 Combining Vascular Disruption Activity of TRAIL-expressing CD34+ Cells With Antiangiogenic Activity of Sorafenib Improves Regression of Tumor Growth. Eur J Cancer 2012. [DOI: 10.1016/s0959-8049(12)71579-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Giussani M, Rossini A, Giacomini A, Tagliabue E, Balsari A. 248 Surveillance of Spontaneous Breast Cancer Metastases by TRAIL Expressing CD34+ Cells in a Xenograft Model. Eur J Cancer 2012. [DOI: 10.1016/s0959-8049(12)70943-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Maisano F, La Canna G, Latib A, Godino C, Denti P, Buzzatti N, Taramasso M, Cioni M, Giacomini A, Colombo A, Alfieri O. Transseptal access for MitraClip® procedures using surgical diathermy under echocardiographic guidance. EUROINTERVENTION 2012:20120123-02. [PMID: 22695398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Aims: Unlike most diagnostic procedures, the MitraClip® therapy requires precise positioning of transseptal access to ensure a successful procedure. Radiofrequency-based transseptal puncture has been developed to reduce complications and improve precision of septal access. We report our experience utilising surgical diathermy-based transseptal puncture for MitraClip implantation. Methods and results: Between October 2008 and April 2010, 72 patients underwent MitraClip therapy. Diathermy-assisted transseptal access was performed in 66 patients, under echocardiographic guidance, by manual contact of the diathermy blade with the Brockenbrough needle at the groin. Rate of successful puncture, time from femoral vein puncture to transseptal access and rate of complications were analysed. Diathermy-assisted puncture was successful in all cases. Time from femoral vein access to transseptal puncture was 16±19 min. There was one suboptimal septal puncture position (too low), and there was one coronary artery air embolism. There were no cases of intraprocedural pericardial effusion or arrhythmias. Conclusions: Surgical diathermy-based transseptal puncture may be a safe and effective alternative to either conventional or RF-based septal crossing. It improves precision of the septal access and may reduce the risk of bleeding complications. This technique is now routinely used at our institution for all MitraClip procedures.
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Affiliation(s)
- Francesco Maisano
- Cardio-Thoracic-Vascular Department, San Raffaele University Hospital, Milan, Italy
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Cioni M, Taramasso M, Giacomini A, Montorfano M, Latib A, Colombo A, Alfieri O, Maisano F. Transaxillary Approach Short- and Mid-Term Results in a Single-Center Experience. Innovations 2011. [DOI: 10.1177/155698451100600604] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
| | | | | | - Matteo Montorfano
- Interventional Cardiology Department, San Raffaele University Hospital, Milan, Italy
| | - Azeem Latib
- Interventional Cardiology Department, San Raffaele University Hospital, Milan, Italy
| | - Antonio Colombo
- Interventional Cardiology Department, San Raffaele University Hospital, Milan, Italy
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Maisano F, Godino C, Giacomini A, Denti P, Buzzatti N, Arendar I, Colombo A, Alfieri O, La Canna G. Patient selection for MitraClip therapy impaired left ventricular systolic function. Minerva Cardioangiol 2011; 59:455-471. [PMID: 21983306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Mitral regurgitation (MR) is a disabling disease associated with poor prognosis and high incidence of clinical events if left untreated. To reduce the invasiveness of the surgical approach, different types of transcatheter procedures are becoming available. The MitraClip procedure (Abbott Vascular Inc. Menlo Park, CA, USA) is yet the only catheter-based procedure available in clinical practice at the moment. The device has been evaluated in a number of preclinical studies, registries and in FDA approved clinical trials. (EVEREST trial, ACCESS-EU trial). Indication and timing of intervention is a crucial step in the diagnostic-therapeutic pathway of patients with mitral regurgitation. The aim of this review is to clarify the potential of MitraClip in clinical practice, particularly focusing on patient selection for this novel therapy. Patient selection and overall decision making is strongly influenced by anatomical and clinical factors. Decision-making in degenerative MR (DMR) vs. functional (FMR) can be quite different. Generally, MitraClip is effective in treating either type II or IIIb dysfunction (at the moment FMR is the main indication for MitraClip in Europe, according to the ACCESS registry data). The relative role of MitraClip and surgery in the management of patients with MR is still unclear. From the global initial experience, MitraClip therapy could be complementary to surgery in those patients at high risk for surgery who have ideal anatomical characteristics for implantation. The procedure is quite predictable in patients with favorable anatomy. In patients with suboptimal anatomy, if the risk of surgery is too high, MitraClip could be still indicated sometimes. Our preliminary experience suggests that in patients with DMR, the EVEREST anatomical criteria are strong predictors of early and mid-term success. According to it, MitraClip therapy is appropriate in those DMR patients with high surgical risk and ideal anatomy for clip implantation according to the EVEREST criteria. In FMR refractory to medical therapy and resynchronization therapy, MitraClip could be considered as first option therapy, particularly in those patients with comorbidities, or advanced age, being the operative risk of surgery above 5% in this population. In the future, novel devices, improved knowledge, more efficient imaging and transcatheter mitral prosthetic valve implantation may expand the indications to those patients currently not treated by MitraClip for anatomical unsuitability, and may improve the results both in term of early efficacy and long term durability.
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Affiliation(s)
- F Maisano
- Department of Cardiosurgery, San Raffaele Hospital, Milan, Italy.
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Bovo B, Giacomini A, Corich V. Effects of grape marcs acidification treatment on the evolution of indigenous yeast populations during the production of grappa. J Appl Microbiol 2011; 111:382-8. [DOI: 10.1111/j.1365-2672.2011.05060.x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Godino C, Chieffo A, Maisano F, Montorfano M, Latib A, Ielasi A, Cioni M, Mussardo M, Denti P, Giacomini A, Taramasso M, Arendar I, Grimaldi A, Spagnolo P, Canna GL, Alfieri O, Colombo A. COMPARISON OF TRANS-FEMORAL TRANSCATHETER AORTIC VALVE IMPLANTATION (TAVI) PERFORMED WITH EDWARDS SAPIEN OR COREVALVE IMPLANTATION. J Am Coll Cardiol 2011. [DOI: 10.1016/s0735-1097(11)61613-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Godino C, Mussardo M, Ielasi A, Cioni M, Montorfano M, Maisano F, Chieffo A, Latib A, Carità P, Arioli F, Taramasso M, Arendar I, Denti P, Giacomini A, Spagnolo P, Canna GL, Alfieri O. VASCULAR COMPLICATIONS FOLLOWING TRANSCATHETER AORTIC VALVE IMPLANTATION WITH BOTH EDWARDS SAPIEN AND MEDTRONIC COREVALVE(R) BIOPROSTHESIS USING TRANSFEMORAL APPROACH SUPPORTED BY THE CROSS-OVER TECHNIQUE. J Am Coll Cardiol 2011. [DOI: 10.1016/s0735-1097(11)61342-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Godino C, Mussardo M, Ielasi A, Cioni M, Maisano F, Chieffo A, Montorfano M, Latib A, Denti P, Giacomini A, Taramasso M, Carlino M, Grimaldi A, Spagnolo P, Canna GL, Alfieri O. ONE-YEAR CLINICAL OUTCOMES FOLLOWING TRANSCATHETER AORTIC VALVE IMPLANTATION (TAVI) WITH BOTH EDWARDS SAPIEN AND COREVALVE DEVICES IN A SINGLE CENTER: THE MILAN EXPERIENCE. J Am Coll Cardiol 2011. [DOI: 10.1016/s0735-1097(11)61341-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Taramasso M, Cioni M, Giacomini A, Michev I, Godino C, Montorfano M, Colombo A, Alfieri O, Maisano F. Emerging approaches of transcatheter valve repair/insertion. Cardiol Res Pract 2010; 2010. [PMID: 20811476 PMCID: PMC2926577 DOI: 10.4061/2010/540749] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/08/2010] [Revised: 06/20/2010] [Accepted: 06/21/2010] [Indexed: 11/20/2022] Open
Abstract
Aortic stenosis (AS) and mitral regurgitation (MR) account for the majority of valvular diseases and their prevalence is increasing according to increased life expectancy. Surgical treatment is the gold standard, although operative risk may be high in some patients due to comorbidities and age. A large part of the patients at high surgical risk who could beneficiate of treatment are not referred to surgery. Therefore, there is a need of alternative and less invasive procedures.
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Affiliation(s)
- Maurizio Taramasso
- Cardiothoracic Department, San Raffaele Scientific Institute, via Olgettina 60, 20122 Milan, Italy
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Viganò G, Guidotti A, Taramasso M, Giacomini A, Alfieri O. Clinical mid-term results after tricuspid valve replacement☆. Interact Cardiovasc Thorac Surg 2010; 10:709-13. [DOI: 10.1510/icvts.2009.224212] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
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Tamburino C, Ussia GP, Maisano F, Capodanno D, La Canna G, Scandura S, Colombo A, Giacomini A, Michev I, Mangiafico S, Cammalleri V, Barbanti M, Alfieri O. Percutaneous mitral valve repair with the MitraClip system: acute results from a real world setting. Eur Heart J 2010; 31:1382-9. [PMID: 20299349 PMCID: PMC2878966 DOI: 10.1093/eurheartj/ehq051] [Citation(s) in RCA: 204] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
Aims This study sought to evaluate the feasibility and early outcomes of a percutaneous edge-to-edge repair approach for mitral valve regurgitation with the MitraClip® system (Evalve, Inc., Menlo Park, CA, USA). Methods and results Patients were selected for the procedure based on the consensus of a multidisciplinary team. The primary efficacy endpoint was acute device success defined as clip placement with reduction of mitral regurgitation to ≤2+. The primary acute safety endpoint was 30-day freedom from major adverse events, defined as the composite of death, myocardial infarction, non-elective cardiac surgery for adverse events, renal failure, transfusion of >2 units of blood, ventilation for >48 h, deep wound infection, septicaemia, and new onset of atrial fibrillation. Thirty-one patients (median age 71, male 81%) were treated between August 2008 and July 2009. Eighteen patients (58%) presented with functional disease and 13 patients (42%) presented with organic degenerative disease. A clip was successfully implanted in 19 patients (61%) and two clips in 12 patients (39%). The median device implantation time was 80 min. At 30 days, there was an intra-procedural cardiac tamponade and a non-cardiac death, resulting in a primary safety endpoint of 93.6% [95% confidence interval (CI) 77.2–98.9]. Acute device success was observed in 96.8% of patients (95% CI 81.5–99.8). Compared with baseline, left ventricular diameters, diastolic left ventricular volume, diastolic annular septal–lateral dimension, and mitral valve area significantly diminished at 30 days. Conclusion Our initial results with the MitraClip device in a very small number of patients indicate that percutaneous edge-to-edge mitral valve repair is feasible and may be accomplished with favourable short-term safety and efficacy results.
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Affiliation(s)
- Corrado Tamburino
- Cardiology Department, Ferrarotto Hospital, University of Catania, Via Citelli 6, 95124 Catania, Italy.
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Taramasso M, Giacomini A, Maisano F. Transcatheter aortic valve implantation through the left subclavian artery with a patent LIMA graft. Catheter Cardiovasc Interv 2010; 76:153-5. [DOI: 10.1002/ccd.22423] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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