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  1. Article ; Online: Area postrema syndrome and painful tonic spasms as initial manifestations of Neuromyelitis optica spectrum disorder in a 72-year-old female: a case report.

    Tazza, Francesco / Lagorio, Ilaria / Trompetto, Carlo / Bianchi, Maria Laura Ester / Finocchi, Cinzia

    Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology

    2024  

    Language English
    Publishing date 2024-03-18
    Publishing country Italy
    Document type Letter
    ZDB-ID 2016546-8
    ISSN 1590-3478 ; 1590-1874
    ISSN (online) 1590-3478
    ISSN 1590-1874
    DOI 10.1007/s10072-024-07461-4
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Mapping tissue microstructure across the human brain on a clinical scanner with soma and neurite density image metrics.

    Schiavi, Simona / Palombo, Marco / Zacà, Domenico / Tazza, Francesco / Lapucci, Caterina / Castellan, Lucio / Costagli, Mauro / Inglese, Matilde

    Human brain mapping

    2023  Volume 44, Issue 13, Page(s) 4792–4811

    Abstract: Soma and neurite density image (SANDI) is an advanced diffusion magnetic resonance imaging biophysical signal model devised to probe in vivo microstructural information in the gray matter (GM). This model requires acquisitions that include b values that ... ...

    Abstract Soma and neurite density image (SANDI) is an advanced diffusion magnetic resonance imaging biophysical signal model devised to probe in vivo microstructural information in the gray matter (GM). This model requires acquisitions that include b values that are at least six times higher than those used in clinical practice. Such high b values are required to disentangle the signal contribution of water diffusing in soma from that diffusing in neurites and extracellular space, while keeping the diffusion time as short as possible to minimize potential bias due to water exchange. These requirements have limited the use of SANDI only to preclinical or cutting-edge human scanners. Here, we investigate the potential impact of neglecting water exchange in the SANDI model and present a 10-min acquisition protocol that enables to characterize both GM and white matter (WM) on 3 T scanners. We implemented analytical simulations to (i) evaluate the stability of the fitting of SANDI parameters when diminishing the number of shells; (ii) estimate the bias due to potential exchange between neurites and extracellular space in such reduced acquisition scheme, comparing it with the bias due to experimental noise. Then, we demonstrated the feasibility and assessed the repeatability and reproducibility of our approach by computing microstructural metrics of SANDI with AMICO toolbox and other state-of-the-art models on five healthy subjects. Finally, we applied our protocol to five multiple sclerosis patients. Results suggest that SANDI is a practical method to characterize WM and GM tissues in vivo on performant clinical scanners.
    MeSH term(s) Humans ; Neurites ; Reproducibility of Results ; Benchmarking ; Brain/diagnostic imaging ; Diffusion Magnetic Resonance Imaging/methods ; White Matter/diagnostic imaging ; Water
    Chemical Substances Water (059QF0KO0R)
    Language English
    Publishing date 2023-07-17
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 1197207-5
    ISSN 1097-0193 ; 1065-9471
    ISSN (online) 1097-0193
    ISSN 1065-9471
    DOI 10.1002/hbm.26416
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Evaluating the central vein sign in paediatric-onset multiple sclerosis: A case series study.

    Boccia, Vincenzo Daniele / Lapucci, Caterina / Cellerino, Maria / Tazza, Francesco / Rossi, Andrea / Schiavi, Simona / Mancardi, Maria Margherita / Inglese, Matilde

    Multiple sclerosis (Houndmills, Basingstoke, England)

    2022  Volume 29, Issue 3, Page(s) 475–478

    Abstract: The central vein sign (CVS) has been proposed as a biomarker of multiple sclerosis (MS). In adult-onset MS (AOMS), 40%-threshold of CVS positive (+) lesions demonstrated high accuracy for MS diagnosis. However, CVS+ lesions' performance has not been ... ...

    Abstract The central vein sign (CVS) has been proposed as a biomarker of multiple sclerosis (MS). In adult-onset MS (AOMS), 40%-threshold of CVS positive (+) lesions demonstrated high accuracy for MS diagnosis. However, CVS+ lesions' performance has not been characterized in paediatric-onset (POMS) yet. We compared the CVS contribution to MS diagnosis in 10 POMS and 12 disease-duration-matched AOMS patients. Three POMS patients did not meet the 40%-threshold, while all AOMS patients were correctly diagnosed as having MS. The high proportion of periventricular confluent lesions, excluded from the CVS assessment, seemed to impair CVS sensitivity in POMS diagnosis.
    MeSH term(s) Adult ; Child ; Humans ; Multiple Sclerosis/pathology ; Veins ; Magnetic Resonance Imaging ; Brain/pathology
    Language English
    Publishing date 2022-12-13
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 1290669-4
    ISSN 1477-0970 ; 1352-4585
    ISSN (online) 1477-0970
    ISSN 1352-4585
    DOI 10.1177/13524585221142319
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Vascular access for hemodialysis in Italy: What a national survey reveals.

    Napoli, Marcello / Guzzi, Francesco / Morale, Walter / Lomonte, Carlo / Galli, Franco / Lodi, Massimo / Bonforte, Giuseppe / Bonucchi, Decenzio / Brunori, Giuliano / Buzzi, Laura / Forneris, Giacomo / Gallieni, Maurizio / Meola, Mario / Pirozzi, Nicola / Sessa, Concetto / Spina, Monica / Tazza, Luigi

    The journal of vascular access

    2024  , Page(s) 11297298231217318

    Abstract: Background: Since in Italy there are no official data on vascular access (VA) for hemodialysis the Vascular Access Project Group (VAPG) of the Italian Society of Nephrology (SIN) designed a national survey.: Methods: A 35-question survey was designed ...

    Abstract Background: Since in Italy there are no official data on vascular access (VA) for hemodialysis the Vascular Access Project Group (VAPG) of the Italian Society of Nephrology (SIN) designed a national survey.
    Methods: A 35-question survey was designed and sent it to the Italian facilities through the SIN website. The basic questions were the prevalence, the location, and the surveillance of VA, the bedside use of ultrasound, the use of fluoroscopy for central venous catheter (CVC) placement, and of buttonhole technique, the role of nephrologist in the access creation.
    Result: The questionnaire was completed in June 2022 by 161 facilities. The survey registered 15,499 patients, approximately one-third of the Italian dialysis population. The prevalence of arteriovenous fistula (AVF), arteriovenous Graft (AVG), and CVC were 61.8%, 3.7%, and 34.5% respectively. The AVF location was 50% in distal forearm, 20% in meanproximal forearm, 30% in upper arm. For AVF creation, nephrologists were involved in 72% of facilities while for CVC placement in 62%. As regards VA monitoring, 21% of the facilities did not have a surveillance protocol; 60% did not register AVF thrombosis and 53% did not register CVC infections. Most of facilities use the fluoroscope during CVC placement, 37% when needed, and 22% never. Ultrasound-guided puncture of complex AVFs was used by 80% of facilities. Buttonhole puncture was used in 5% of patients.
    Conclusions: Some considerations emerge from the survey data: (1) The increasing CVC prevalence compared to DOPPS 5 study. (2) The low rate of AVG prevalence. (3) The nephrologist is the operator in many VA procedures. (4) The fluoroscopy for CVC placement and the US-guide puncture of the complex AVF are widely used in most facilities. (5) The practice of the buttonhole is not widespread. (6) When the operator is the nephrologist more distal fistulas are performed.
    Language English
    Publishing date 2024-01-18
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2252820-9
    ISSN 1724-6032 ; 1129-7298
    ISSN (online) 1724-6032
    ISSN 1129-7298
    DOI 10.1177/11297298231217318
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: COVID-19 in a MS patient treated with ocrelizumab: does immunosuppression have a protective role?

    Novi, Giovanni / Mikulska, Malgorzata / Briano, Federica / Toscanini, Federica / Tazza, Francesco / Uccelli, Antonio / Inglese, Matilde

    Multiple sclerosis and related disorders

    2020  Volume 42, Page(s) 102120

    Abstract: Background: Coronavirus disease 19 (COVID-19) is a novel disease entity that is spreading throughout the world. It has been speculated that patients with comorbidities and elderly patients could be at high risk for respiratory insufficiency and death. ... ...

    Abstract Background: Coronavirus disease 19 (COVID-19) is a novel disease entity that is spreading throughout the world. It has been speculated that patients with comorbidities and elderly patients could be at high risk for respiratory insufficiency and death. Immunosuppression could expose infected patients to even higher risks of disease complications due to dampened immune response. However, it has been speculated that overactive immune response could drive clinical deterioration and, based on this hypothesis, several immunosuppressants are currently being tested as potential treatment for COVID-19.
    Methods: In this paper we report on a patient that has been treated with ocrelizumab (a B-cell depleting monoclonal antibody) for primary progressive multiple sclerosis who developed COVID-19.
    Results: Despite complete B cell depletion, patient symptoms abated few days after hospitalization, and he was discharged to home-quarantine. Phone interview follow-up confirmed that, after 14 days, no new symptoms occurred.
    Discussion: This report supports the putative role of immunosuppressive therapy in COVID-19 affected patients.
    MeSH term(s) Antibodies, Monoclonal, Humanized/therapeutic use ; Betacoronavirus ; COVID-19 ; Coronavirus Infections/complications ; Coronavirus Infections/physiopathology ; Humans ; Immunologic Factors/therapeutic use ; Male ; Middle Aged ; Multiple Sclerosis, Chronic Progressive/complications ; Multiple Sclerosis, Chronic Progressive/drug therapy ; Pandemics ; Pneumonia, Viral/complications ; Pneumonia, Viral/physiopathology ; Protective Factors ; SARS-CoV-2 ; Severity of Illness Index
    Chemical Substances Antibodies, Monoclonal, Humanized ; Immunologic Factors ; ocrelizumab (A10SJL62JY)
    Keywords covid19
    Language English
    Publishing date 2020-04-15
    Publishing country Netherlands
    Document type Case Reports
    ZDB-ID 2645330-7
    ISSN 2211-0356 ; 2211-0348
    ISSN (online) 2211-0356
    ISSN 2211-0348
    DOI 10.1016/j.msard.2020.102120
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  6. Article: In-vivo characterization of macro- and microstructural injury of the subventricular zone in relapsing-remitting and progressive multiple sclerosis.

    Cellerino, Maria / Schiavi, Simona / Lapucci, Caterina / Sbragia, Elvira / Boffa, Giacomo / Rolla-Bigliani, Claudia / Tonelli, Serena / Boccia, Daniele / Bruschi, Nicolò / Tazza, Francesco / Franciotta, Diego / Inglese, Matilde

    Frontiers in neuroscience

    2023  Volume 17, Page(s) 1112199

    Abstract: Introduction: The subventricular zone (SVZ) represents one of the main adult brain neurogenesis niche. In-vivo imaging of SVZ is very challenging and little is known about MRI correlates of SVZ macro- and micro-structural injury in multiple sclerosis ( ... ...

    Abstract Introduction: The subventricular zone (SVZ) represents one of the main adult brain neurogenesis niche. In-vivo imaging of SVZ is very challenging and little is known about MRI correlates of SVZ macro- and micro-structural injury in multiple sclerosis (MS) patients.
    Methods: The aim of the present study is to evaluate differences in terms of volume and microstructural changes [as assessed with the novel Spherical Mean Technique (SMT) model, evaluating: Neurite Signal fraction (INTRA); Extra-neurite transverse (EXTRATRANS) and mean diffusivity (EXTRAMD)] in SVZ between relapsing-remitting (RR) or progressive (P) MS patients and healthy controls (HC). We are also going to explore whether SVZ microstructural injury correlate with caudate (a nucleus that is in the vicinity of the SVZ) or thalamus (another well-defined grey matter area which is further from SVZ than caudate) volume and clinical disability. Clinical and brain MRI data were prospectively acquired from 20 HC, 101 RRMS, and 50 PMS patients. Structural and diffusion metrics inside the global SVZ, normal appearing (NA-) SVZ, caudate and thalamus were collected.
    Results: We found a statistically significant difference between groups in terms of NA-SVZ EXTRAMD (PMS>RRMS>HC;
    Discussion: In conclusion, the microstructural damage we observed within the NA-SVZ of MS patients - reflecting higher free water content (higher EXTRAMD), cytoarchitecture disruption and astrogliosis (higher EXTRATRANS and lower INTRA) - was more evident in the progressive as compared to the relapsing phases of MS. These abnormalities were significantly associated with a more pronounced caudate atrophy and higher clinical disability scores. Our findings may support the neuroprotective role of SVZ in MS patients.
    Language English
    Publishing date 2023-04-11
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2411902-7
    ISSN 1662-453X ; 1662-4548
    ISSN (online) 1662-453X
    ISSN 1662-4548
    DOI 10.3389/fnins.2023.1112199
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  7. Article ; Online: Clinical and radiological correlates of apathy in multiple sclerosis.

    Tazza, Francesco / Schiavi, Simona / Leveraro, Elisa / Cellerino, Maria / Boffa, Giacomo / Ballerini, Stefania / Dighero, Mara / Uccelli, Antonio / Sbragia, Elvira / Aluan, Kenda / Inglese, Matilde / Lapucci, Caterina

    Multiple sclerosis (Houndmills, Basingstoke, England)

    2023  Volume 30, Issue 2, Page(s) 247–256

    Abstract: Background: Although apathy has been associated with fronto-striatal dysfunction in several neurological disorders, its clinical and magnetic resonance imaging (MRI) correlates have been poorly investigated in people with multiple sclerosis (PwMS).: ... ...

    Abstract Background: Although apathy has been associated with fronto-striatal dysfunction in several neurological disorders, its clinical and magnetic resonance imaging (MRI) correlates have been poorly investigated in people with multiple sclerosis (PwMS).
    Objectives: To evaluate clinical variables and investigate microstructural integrity of fronto-striatal grey matter (GM) and white matter (WM) structures using diffusion tensor imaging (DTI).
    Methods: A total of
    Results: Apathetic PwMS (32.5%) showed lower education levels, higher HADS, MFIS scores and WM lesions volume than nonapathetic PwMS. Significant differences in DTI metrics were found in middle frontal, anterior cingulate and superior frontal PFC subregions and in caudate nuclei. Significant alterations were found in the right cingulum and left striatal-frontorbital tracts.
    Conclusions: Apathy in PwMS is associated with higher levels of physical disability, depression, anxiety and fatigue together with lower educational backgrounds. Microstructural damage within frontal cortex, caudate and fronto-striatal WM bundles is a significant pathological substrate of apathy in multiple sclerosis (MS).
    MeSH term(s) Adult ; Female ; Humans ; Middle Aged ; Apathy ; Brain/pathology ; Diffusion Tensor Imaging/methods ; Fatigue/pathology ; Magnetic Resonance Imaging/methods ; Multiple Sclerosis/pathology ; Multiple Sclerosis, Relapsing-Remitting/pathology ; White Matter/pathology ; Male
    Language English
    Publishing date 2023-12-14
    Publishing country England
    Document type Journal Article
    ZDB-ID 1290669-4
    ISSN 1477-0970 ; 1352-4585
    ISSN (online) 1477-0970
    ISSN 1352-4585
    DOI 10.1177/13524585231217918
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article: Central vein sign and diffusion MRI differentiate microstructural features within white matter lesions of multiple sclerosis patients with comorbidities.

    Lapucci, Caterina / Tazza, Francesco / Rebella, Silvia / Boffa, Giacomo / Sbragia, Elvira / Bruschi, Nicolò / Mancuso, Elisabetta / Mavilio, Nicola / Signori, Alessio / Roccatagliata, Luca / Cellerino, Maria / Schiavi, Simona / Inglese, Matilde

    Frontiers in neurology

    2023  Volume 14, Page(s) 1084661

    Abstract: Introduction: The Central Vein Sign (CVS) has been suggested as a potential biomarker to improve diagnostic specificity in multiple sclerosis (MS). Nevertheless, the impact of comorbidities on CVS performance has been poorly investigated so far. Despite ...

    Abstract Introduction: The Central Vein Sign (CVS) has been suggested as a potential biomarker to improve diagnostic specificity in multiple sclerosis (MS). Nevertheless, the impact of comorbidities on CVS performance has been poorly investigated so far. Despite the similar features shared by MS, migraine and Small Vessel Disease (SVD) at T2-weighted conventional MRI sequences,
    Methods: 120 MS patients stratified into 4 Age Groups performed 3T brain MRI. WM lesions were classified in "perivenular" and "non-perivenular" by visual inspection of FLAIR
    Results: Of the 5303 lesions selected for the CVS assessment, 68.7% were perivenular. Significant differences were found between perivenular and non-perivenular lesion volume in the whole brain (
    Discussion: Age and migraine have a relevant impact in reducing the percentage of perivenular lesions, particularly in the deep/subcortical WM. SMT may differentiate perivenular lesions, characterized by higher inflammation, demyelination and fiber disruption, from non perivenular lesions, where these pathological processes seemed to be less pronounced. The development of new non-perivenular lesions, especially in the deep/subcortical WM of older patients, should be considered a "red flag" for a different -other than MS- pathophysiology.
    Language English
    Publishing date 2023-03-08
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2564214-5
    ISSN 1664-2295
    ISSN 1664-2295
    DOI 10.3389/fneur.2023.1084661
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  9. Article ; Online: COVID-19 in a MS patient treated with ocrelizumab

    Novi, G. / Mikulska, M. / Briano, F. / Toscanini, F. / Tazza, F. / Uccelli, A. / Inglese, M.

    does immunosuppression have a protective role?

    2020  

    Abstract: Background: Coronavirus disease 19 (COVID-19) is a novel disease entity that is spreading throughout the world. It has been speculated that patients with comorbidities and elderly patients could be at high risk for respiratory insufficiency and death. ... ...

    Abstract Background: Coronavirus disease 19 (COVID-19) is a novel disease entity that is spreading throughout the world. It has been speculated that patients with comorbidities and elderly patients could be at high risk for respiratory insufficiency and death. Immunosuppression could expose infected patients to even higher risks of disease complications due to dampened immune response. However, it has been speculated that overactive immune response could drive clinical deterioration and, based on this hypothesis, several immunosuppressants are currently being tested as potential treatment for COVID-19. Methods: In this paper we report on a patient that has been treated with ocrelizumab (a B-cell depleting monoclonal antibody) for primary progressive multiple sclerosis who developed COVID-19. Results: Despite complete B cell depletion, patient symptoms abated few days after hospitalization, and he was discharged to home-quarantine. Phone interview follow-up confirmed that, after 14 days, no new symptoms occurred. Discussion: This report supports the putative role of immunosuppressive therapy in COVID-19 affected patients.
    Keywords Antibodies ; Monoclonal ; Humanized ; Betacoronavirus ; Coronavirus Infections ; Humans ; Immunologic Factors ; Male ; Middle Aged ; Multiple Sclerosis ; Chronic Progressive ; Pandemics ; Pneumonia ; Viral ; Protective Factors ; Severity of Illness Index ; covid19
    Subject code 610 ; 616
    Language English
    Publisher Elsevier B.V.
    Publishing country it
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  10. Article ; Online: Considerazioni su uno studio che confronta l'utilizzo di metodi semiparametrici e parametrici nello studio della sopravvivenza degli accessi vascolari per emodialisi

    L. Tazza / A. Di Napoli / F. Franco

    Giornale di Clinica Nefrologia e Dialisi, Vol 23, Iss

    2018  Volume 4

    Abstract: Ravani et al hanno recentemente confrontato la sopravvivenza degli accessi arterovenosi con vasi nativi vs. protesici utilizzando metodi statistici differenti da quelli comunemente usati in letteratura. Quando il fenomeno sotto osservazione (nel caso ... ...

    Abstract Ravani et al hanno recentemente confrontato la sopravvivenza degli accessi arterovenosi con vasi nativi vs. protesici utilizzando metodi statistici differenti da quelli comunemente usati in letteratura. Quando il fenomeno sotto osservazione (nel caso specifico “il rischio istantaneo di fallimento dell'accesso”) non rimane costante nel tempo ma segue un andamento noto, l'uso dei modelli statistici parametrici può essere in grado di offrire maggiori e più accurate informazioni rispetto ai semiparametrici (regressione di Cox). Le diverse cause di fallimento degli accessi vascolari sono sensibilmente tempo-dipendenti. Inoltre i metodi parametrici consentono di analizzare meglio gli eventi ripetuti per lo stesso soggetto. È il caso del paziente che per fare l'emodialisi richiede un nuovo intervento quando fallisce il precedente. I modelli parametrici permettono una più accurata valutazione dell'effetto fragilità.
    Keywords Scala del Rischio ; Effetti Tempo Dipendenti ; Modello semiparametrico di Cox ; Regressione di Weibull ; Accesso vascolare ; Fistola arterovenosa ; Internal medicine ; RC31-1245 ; Diseases of the genitourinary system. Urology ; RC870-923
    Language Italian
    Publishing date 2018-01-01T00:00:00Z
    Publisher AboutScience Srl
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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