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Sirenko M, Bernard E, Creignou M, Domenico D, Farina A, Arango Ossa JE, Kosmider O, Hasserjian RP, Jädersten M, Germing U, Sanz GF, van de Loosdrecht AA, Gurnari C, Follo MY, Thol FR, Zamora L, Pinheiro RF, Pellagatti A, Elias HK, Haase DT, Sander B, Orna E, Zoldan K, Eder LN, Sperr WR, Thalhammer R, Ganster C, Adès L, Tobiasson M, Palomo L, Della Porta MG, Huberman KH, Fenaux P, Belickova M, Savona MR, Klimek V, Santos FPS, Boultwood J, Kotsianidis I, Santini V, Sole F, Platzbecker U, Heuser M, Valent P, Finelli C, Voso MT, Shih LY, Ogawa S, Fontenay M, Jansen JH, Cervera J, Ebert BL, Bejar R, Greenberg PL, Gattermann N, Malcovati L, Cazzola M, Beck DB, Hellstrom-Lindberg ES, Papaemmanuil E. Molecular and clinical presentation of UBA1-mutated myelodysplastic syndromes. Blood 2024:blood.2023023723. [PMID: 38687605 DOI: 10.1182/blood.2023023723] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Revised: 03/20/2024] [Accepted: 04/10/2024] [Indexed: 05/02/2024] Open
Abstract
Mutations in UBA1, which are disease-defining for VEXAS syndrome, have been reported in patients diagnosed with myelodysplastic syndromes (MDS). Here, we define the prevalence and clinical associations of UBA1 mutations in a representative cohort of patients with MDS. Digital droplet PCR profiling of a selected cohort of 375 male patients lacking MDS disease-defining mutations or established WHO disease classification identified 28 patients (7%) with UBA1 p.M41T/V/L mutations. Using targeted sequencing of UBA1 in a representative MDS cohort (n=2,027), we identified an additional 27 variants in 26 patients (1%), which we classified as likely/pathogenic (n=12) and unknown significance (n=15). Among the total 40 patients with likely/pathogenic variants (2%), all were male and 63% were classified by WHO2016 as MDS-MLD/SLD. Patients had a median of one additional myeloid gene mutation, often in TET2 (n=12), DNMT3A (n=10), ASXL1 (n=3), or SF3B1 (n=3). Retrospective clinical review where possible showed that 83% (28/34) UBA1-mutant cases had VEXAS-associated diagnoses or inflammatory clinical presentation. The prevalence of UBA1-mutations in MDS patients argues for systematic screening for UBA1 in the management of MDS.
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Affiliation(s)
- Maria Sirenko
- Memorial Sloan Kettering Cancer Center, New York City, New York, United States
| | | | | | - Dylan Domenico
- Memorial Sloan Kettering Cancer Center, New York, New York, United States
| | - Andrea Farina
- Memorial Sloan Kettering Cancer Center, New York, New York, United States
| | | | | | | | | | | | - Guillermo F Sanz
- Hospital Universitario y Politécnico La Fe, Valencia, Spain, Health Research Institute La Fe, Valencia, Spain, and CIBERONC, Instituto de Salud Carlos III, Madrid, Spain, Valencia, Spain
| | | | - Carmelo Gurnari
- Taussig Cancer Institute, Cleveland Clinic, Cleveland, Ohio, United States
| | | | | | - Lurdes Zamora
- Hematología. ICO Badalona - HGTiP. Institut d'Investigació contra la Leucèmia Josep Carreras, Badalona, Spain
| | | | | | | | | | - Birgitta Sander
- Karolinska Institutet and Karolinska University Hospital Huddinge, Stockholm, Sweden
| | - Elisa Orna
- Hospital Universitari Germans Trias i Pujol, Badalona, Spain
| | - Katharina Zoldan
- Department of Medicine 1, Haematology, Cellular Therapy, Hemostaseology and Infectious Diseases, University Medical Center Leipzig, Leipzig, Germany, Leipzig, Germany
| | | | | | | | | | - Lionel Adès
- AP-HP, Hôpital Saint Louis and University of Paris, and INSERM U944, Paris, France
| | - Magnus Tobiasson
- Karolinska Institute; Karolinska University Hospital, Stockholm, Sweden
| | | | | | - Kety H Huberman
- Memorial Sloan Kettering Cancer Center, New York, New York, United States
| | | | - Monika Belickova
- The Institute of Hematology and Blood Transfusion, Prague, Czech Republic
| | - Michael R Savona
- Vanderbilt University School of Medicine, Nashville, Tennessee, United States
| | - Virginia Klimek
- Memorial Sloan-Kettering Cancer Center, New York, New York, United States
| | | | | | | | | | - Francesc Sole
- Institut de Recerca contra la Leucemia Josep Carreras. Barcelona, Spain, Badalona, Spain
| | - Uwe Platzbecker
- University Hospital Leipzig, Department of Hematology and Cell Therapy, Leipzig, Germany
| | | | | | - Carlo Finelli
- IRCCS Azienda Ospedaliero-Universitaria di Bologna, Italy, Bologna, Italy
| | | | | | | | | | | | | | - Benjamin L Ebert
- Dana-Farber Cancer Institute, Boston, Massachusetts, United States
| | | | - Peter L Greenberg
- Stanford University Cancer Center, Stanford, California, United States
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Ciampi CM, Sultana A, Ossola P, Farina A, Fragasso G, Spoladore R. Current experimental and early investigational agents for cardiac fibrosis: where are we at? Expert Opin Investig Drugs 2024; 33:389-404. [PMID: 38426439 DOI: 10.1080/13543784.2024.2326024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Accepted: 02/28/2024] [Indexed: 03/02/2024]
Abstract
INTRODUCTION Myocardial fibrosis (MF) is induced by factors activating pro-fibrotic pathways such as acute and prolonged inflammation, myocardial ischemic events, hypertension, aging process, and genetically-linked cardiomyopathies. Dynamics and characteristics of myocardial fibrosis development are very different. The broad range of myocardial fibrosis presentations suggests the presence of multiple potential targets. AREA COVERED Heart failure treatment involves medications primarily aimed at counteracting neurohormonal activation. While these drugs have demonstrated efficacy against MF, not all specifically target inflammation or fibrosis progression with some exceptions such as RAAS inhibitors. Consequently, new therapies are being developed to address this issue. This article is aimed to describe anti-fibrotic drugs currently employed in clinical practice and emerging agents that target specific pathways, supported by evidence from both preclinical and clinical studies. EXPERT OPINION Despite various preclinical findings suggesting the potential utility of new drugs and molecules for treating cardiac fibrosis in animal models, there is a notable scarcity of clinical trials investigating these effects. However, the pathology of damage and repair in the heart muscle involves a complex network of interconnected inflammatory pathways and various types of immune cells. Our comprehension of the positive and negative roles played by specific immune cells and cytokines is an emerging area of research.
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Affiliation(s)
- Claudio M Ciampi
- Health Science Department, University of Milan Bicocca, Milano, Italy
| | - Andrea Sultana
- Health Science Department, University of Milan Bicocca, Milano, Italy
| | - Paolo Ossola
- Health Science Department, University of Milan Bicocca, Milano, Italy
| | - Andrea Farina
- Division of Cardiology, Alessandro Manzoni Hospital, ASST- Lecco, Italy
| | - Gabriele Fragasso
- Heart Failure Unit Head, Division of Cardiology, IRCCS Vita-Salute San Raffaele University Hospital, Milan, Italy
| | - Roberto Spoladore
- Division of Cardiology, Alessandro Manzoni Hospital, ASST- Lecco, Italy
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Pifferi A, Miniati M, Farina A, Konugolu Venkata Sekar S, Lanka P, Dalla Mora A, Maffeis G, Taroni P. Initial non-invasive in vivo sensing of the lung using time domain diffuse optics. Sci Rep 2024; 14:6343. [PMID: 38491195 DOI: 10.1038/s41598-024-56862-0] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Accepted: 03/12/2024] [Indexed: 03/18/2024] Open
Abstract
The in vivo diagnosis and monitoring of pulmonary disorders (caused for example by emphysema, Covid-19, immature lung tissue in infants) could be effectively supported by the non-invasive sensing of the lung through light. With this purpose, we investigated the feasibility of probing the lung by means of time-resolved diffuse optics, leveraging the increased depth (a few centimeters) attained by photons collected after prolonged propagation time (a few nanoseconds). We present an initial study that includes measurements performed on 5 healthy volunteers during a breathing protocol, using a time-resolved broadband diffuse optical spectroscopy system. Those measurements were carried out across the spectral range of 600-1100 nm at a source-detector distance of 3 cm, and at 820 nm over a longer distance (7-9 cm). The preliminary analysis of the in vivo data with a simplified homogeneous model revealed a maximum probing depth of 2.6-3.9 cm, suitable for reaching the lung. Furthermore, we observed variations in signal associated with respiration, particularly evident at long photon propagation times. However, challenges stemming from both intra- and inter-subject variability, along with inconsistencies potentially arising from conflicting scattering and absorption effects on the collected signal, hindered a clear interpretation. Aspects that require further investigation for a more comprehensive understanding are outlined.
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Affiliation(s)
- Antonio Pifferi
- Dipartimento di Fisica, Politecnico di Milano, 20133, Milan, Italy
- IFN-CNR, Consiglio Nazionale delle Ricerche, Istituto di Fotonica e Nanotecnologie, 20133, Milan, Italy
| | - Massimo Miniati
- Department of Experimental and Clinical Medicine, University of Florence, 50134, Florence, Italy
| | - Andrea Farina
- IFN-CNR, Consiglio Nazionale delle Ricerche, Istituto di Fotonica e Nanotecnologie, 20133, Milan, Italy
| | | | - Pranav Lanka
- Biophotonics@Tyndall, IPIC, Tyndall National Institute, Cork, T12R5CP, Ireland
| | | | - Giulia Maffeis
- Dipartimento di Fisica, Politecnico di Milano, 20133, Milan, Italy.
| | - Paola Taroni
- Dipartimento di Fisica, Politecnico di Milano, 20133, Milan, Italy
- IFN-CNR, Consiglio Nazionale delle Ricerche, Istituto di Fotonica e Nanotecnologie, 20133, Milan, Italy
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Beaugard CA, Khudairi F, Yesufu O, Farina A, Laks J. "I don't think of it as a shelter. I say I'm going home": a qualitative evaluation of a low-threshold shelter for women who use drugs. Harm Reduct J 2024; 21:44. [PMID: 38374063 PMCID: PMC10877776 DOI: 10.1186/s12954-024-00930-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Accepted: 01/06/2024] [Indexed: 02/21/2024] Open
Abstract
BACKGROUND In 2021-2022, encampments in a downtown Boston neighborhood reached record heights, increasing the visibility of drug use and homelessness in the city. In response, the city planned a "sweep" (i.e., eradication of encampments) and requested support from social services and medical providers to pilot low-threshold shelters. Low-threshold shelters reduce barriers to staying in traditional congregate shelters with more flexible regulations, longer-term bed assignments, and secured storage for contraband (e.g., drugs, weapons) instead of forced disposal. One homeless service provider opened a harm reduction-focused shelter for women who use drugs. This report describes the low-threshold shelter design and program evaluation. METHODS This program evaluation had two primary aims: (1) to examine guests' beliefs about shelter policies and practices; and (2) to understand the staff's experiences working in a low-threshold model. We conducted semi-structured qualitative interviews with 16 guests and 12 staff members during the summer 2022. Interviews were thematically analyzed. RESULTS Guests expressed overwhelming approval for the shelter's policies, which they stated supported their autonomy, dignity, and safety. They emphasized the staff's willingness to build relationships, thus demonstrating true commitment to the guests. Guests highlighted the value of daytime access to the shelter, as it granted them autonomy over their time, reduced their substance use, and helped them build relationships with staff and other guests. The co-directors and staff designed the shelter quickly and without US models for reference; they turned to international literature, local harm reduction health care providers, and women living in encampments for guidance on the shelter policies. The staff were passionate and committed to the health and stability of the guests. Most staff found value in the low-threshold model, though some were challenged by it, believing it enabled drug use and did not require the guests to "get better." CONCLUSIONS This evaluation indicates the value of low-threshold, harm reduction shelters as alternatives to traditional models. While these shelters do not mitigate the need for overarching housing reform, they are important measures to meet the needs of women experiencing unsheltered homelessness who face intersectional oppression.
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Affiliation(s)
- Corinne A Beaugard
- School of Social Work, Boston University, 264 Bay State Road, Boston, MA, 02215, USA.
- , 801 Massachusetts Avenue, Crosstown Building 4th Floor, Suite 400, Boston, MA, 02180, USA.
| | - Fay Khudairi
- Boston Health Care for the Homeless Program, 780 Albany Street, Boston, MA, 02118, USA
| | - Oluwatoyin Yesufu
- Boston Health Care for the Homeless Program, 780 Albany Street, Boston, MA, 02118, USA
| | - Andrea Farina
- St. Francis House, 39 Boylston St, Boston, MA, 02116, USA
| | - Jordana Laks
- Boston Health Care for the Homeless Program, 780 Albany Street, Boston, MA, 02118, USA
- Chobanian and Avedisian School of Medicine, Department of Internal Medicine, Boston University, 801 Massachusetts Ave 6th Floor, Boston, MA, 02119, USA
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Cavoretto PI, Salmeri N, Candiani M, Farina A. Reply. Ultrasound Obstet Gynecol 2024; 63:285. [PMID: 38301073 DOI: 10.1002/uog.27552] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 11/27/2023] [Indexed: 02/03/2024]
Affiliation(s)
- P I Cavoretto
- Gynecology and Obstetrics Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy
- Department of Gynecology and Obstetrics, Vita-Salute San Raffaele University, Milan, Italy
| | - N Salmeri
- Gynecology and Obstetrics Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy
- Department of Gynecology and Obstetrics, Vita-Salute San Raffaele University, Milan, Italy
| | - M Candiani
- Gynecology and Obstetrics Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy
- Department of Gynecology and Obstetrics, Vita-Salute San Raffaele University, Milan, Italy
| | - A Farina
- Division of Obsterics and Prenatal Medicine, Department of Medicine and Surgery (DIMEC), IRCCS Azienda Ospedaliero - Universitaria di Bologna, Bologna, Italy
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Martelli F, Pifferi A, Farina A, Amendola C, Maffeis G, Tommasi F, Cavalieri S, Spinelli L, Torricelli A. Statistics of maximum photon penetration depth in a two-layer diffusive medium. Biomed Opt Express 2024; 15:1163-1180. [PMID: 38404319 PMCID: PMC10890894 DOI: 10.1364/boe.507294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Revised: 11/30/2023] [Accepted: 12/20/2023] [Indexed: 02/27/2024]
Abstract
We present numerical results for the probability density function f(z) and for the mean value of photon maximum penetration depth ‹zmax› in a two-layer diffusive medium. Both time domain and continuous wave regime are considered with several combinations of the optical properties (absorption coefficient, reduced scattering coefficient) of the two layers, and with different geometrical configurations (source detector distance, thickness of the upper layer). Practical considerations on the design of time domain and continuous wave systems are derived. The methods and the results are of interest for many research fields such as biomedical optics and advanced microscopy.
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Affiliation(s)
- Fabrizio Martelli
- Dipartimento di Fisica e Astronomia, Università degli Studi di Firenze, Sesto Fiorentino, Firenze, Italy
| | - Antonio Pifferi
- Dipartimento di Fisica, Politecnico di Milano, Milan, Italy
- Istituto di Fotonica e Nanotecnologie, Consiglio Nazionale delle Ricerche, Milan, Italy
| | - Andrea Farina
- Istituto di Fotonica e Nanotecnologie, Consiglio Nazionale delle Ricerche, Milan, Italy
| | | | - Giulia Maffeis
- Dipartimento di Fisica, Politecnico di Milano, Milan, Italy
| | - Federico Tommasi
- Dipartimento di Fisica e Astronomia, Università degli Studi di Firenze, Sesto Fiorentino, Firenze, Italy
| | - Stefano Cavalieri
- Dipartimento di Fisica e Astronomia, Università degli Studi di Firenze, Sesto Fiorentino, Firenze, Italy
| | - Lorenzo Spinelli
- Istituto di Fotonica e Nanotecnologie, Consiglio Nazionale delle Ricerche, Milan, Italy
| | - Alessandro Torricelli
- Dipartimento di Fisica, Politecnico di Milano, Milan, Italy
- Istituto di Fotonica e Nanotecnologie, Consiglio Nazionale delle Ricerche, Milan, Italy
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Ghezzi A, Farina A, Vurro V, Bassi A, Valentini G, D'Andrea C. Fast data fitting scheme for compressive multispectral fluorescence lifetime imaging. Opt Lett 2024; 49:278-281. [PMID: 38194547 DOI: 10.1364/ol.506378] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Accepted: 11/26/2023] [Indexed: 01/11/2024]
Abstract
A single-pixel camera combined with compressive sensing techniques is a promising fluorescence microscope scheme for acquiring a multidimensional dataset (space, spectrum, and lifetime) and for reducing the measurement time with respect to conventional microscope schemes. However, upon completing the acquisition, a computational step is necessary for image reconstruction and data analysis, which can be time-consuming, potentially canceling out the beneficial effect of compressive sensing. In this work, we propose and experimentally validate a fast-fit workflow based on global analysis and multiple linear fits, which significantly reduces the computation time from tens of minutes to less than 1 s. Moreover, as the method is interlaced with the measurement flow, it can be applied in parallel with the acquisitions.
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Pozzoni M, Sammaria C, Villanacci R, Borgese C, Ghisleri F, Farina A, Candiani M, Cavoretto PI. Prenatal diagnosis and postnatal outcome of Type-III vasa previa: systematic review of literature. Ultrasound Obstet Gynecol 2024; 63:24-33. [PMID: 37470694 DOI: 10.1002/uog.26315] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2023] [Revised: 06/28/2023] [Accepted: 07/07/2023] [Indexed: 07/21/2023]
Abstract
OBJECTIVE Type-III vasa previa (VP) is a rare form of VP, not necessarily associated with other placental or vascular anomalies, in which aberrant vessels run from the placenta to the amniotic membranes, near the internal cervical os, before returning to the placenta. Early diagnosis of Type-III VP is important but technically challenging. The objective of this study was to gather the current available evidence on the perinatal diagnosis and outcome of Type-III VP. METHODS A systematic review of the literature on the perinatal diagnosis of atypical Type-III VP was carried out in PubMed, MEDLINE and EMBASE accordingto PRISMA guidelines from inception to March 2023. Data extraction and tabulation were performed by two operators and checked by a third senior author. The quality of the included studies was evaluated using the National Institutes of Health tool for the quality assessment of case-series studies. Our local ultrasound database was searched for previously unreported recent cases. Characteristics of prenatally and postnatally diagnosed Type-III VP, including clinical features and perinatal outcomes, were summarized using descriptive statistics. RESULTS Eighteen cases of Type-III VP were included, of which 16 were diagnosed prenatally (14 cases were retrieved from 10 publications and two were unpublished cases from our center) and two were diagnosed postnatally (retrieved from two publications). All prenatal cases were diagnosed on transvaginal ultrasound at a mean gestational age of 29 weeks (median, 31 weeks; range, 19-38 weeks). Conception was achieved with in-vitro fertilization in 4/16 (25.0%) cases. There were no prenatal symptoms in 15/18 (83.3%) cases, while in two (11.1%) cases there was vaginal bleeding and in one (5.6%) preterm labor occurred. In 15/18 (83.3%) cases, at least one placental abnormality was observed, including low-lying insertion (9/17), succenturiate or accessory lobe (1/17), velamentous cord insertion (3/18) and marginal insertion (9/18). All prenatally diagnosed cases were liveborn and were delivered by Cesarean section before rupture of membranes at a median gestational age of 35 weeks (range, 32-38 weeks) without neonatal complications. Emergency Cesarean section was performed in 2/16 (12.5%) cases with a prenatal diagnosis and 1/2 (50.0%) cases with a postnatal diagnosis (P = 0.179). Among those with data available, an Apgar score of ≤ 7 was observed in the prenatally vs postnatally diagnosed group in 5/13 vs 1/1 cases, respectively, at the 1-min evaluation and 3/13 vs 1/1 cases, respectively, at the 5-min evaluation. CONCLUSIONS The prenatal diagnosis of Type-III VP is challenging, with few cases reported in the literature; however, it is crucial for minimizing the risk of adverse outcome by enabling early-term elective Cesarean delivery prior to rupture of membranes. Given that clinical manifestations and risk factors are non-specific, and that Type-III VP cannot be excluded when there is a normal cord insertion or a singular placental mass, systematic screening by transvaginal ultrasound in the general pregnant population is recommended, particularly in those with a low-lying or morphologically abnormal placenta and those who conceived using assisted reproductive technology. © 2023 The Authors. Ultrasound in Obstetrics & Gynecology published by John Wiley & Sons Ltd on behalf of International Society of Ultrasound in Obstetrics and Gynecology.
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Affiliation(s)
- M Pozzoni
- Department of Obstetrics and Gynaecology, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) San Raffaele Scientific Institute, Milan, Italy
- Vita-Salute San Raffaele University, Milan, Italy
| | - C Sammaria
- Department of Obstetrics and Gynaecology, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) San Raffaele Scientific Institute, Milan, Italy
- Vita-Salute San Raffaele University, Milan, Italy
| | - R Villanacci
- Department of Obstetrics and Gynaecology, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) San Raffaele Scientific Institute, Milan, Italy
- Vita-Salute San Raffaele University, Milan, Italy
| | - C Borgese
- Department of Obstetrics and Gynaecology, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) San Raffaele Scientific Institute, Milan, Italy
- Vita-Salute San Raffaele University, Milan, Italy
| | - F Ghisleri
- Department of Obstetrics and Gynaecology, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) San Raffaele Scientific Institute, Milan, Italy
- Vita-Salute San Raffaele University, Milan, Italy
| | - A Farina
- Obstetric Unit, IRCCS Azienda Ospedaliero - Universitaria di Bologna, Bologna, Italy
- Department of Medical and Surgical Sciences (DIMEC), Alma Mater Studiorum - University of Bologna, Bologna, Italy
| | - M Candiani
- Department of Obstetrics and Gynaecology, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) San Raffaele Scientific Institute, Milan, Italy
- Vita-Salute San Raffaele University, Milan, Italy
| | - P I Cavoretto
- Department of Obstetrics and Gynaecology, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) San Raffaele Scientific Institute, Milan, Italy
- Vita-Salute San Raffaele University, Milan, Italy
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Amendola C, Maffeis G, Farina A, Spinelli L, Torricelli A, Pifferi A, Sassaroli A, Fanelli D, Tommasi F, Martelli F. Application limits of the scaling relations for Monte Carlo simulations in diffuse optics. Part 1: theory. Opt Express 2024; 32:125-150. [PMID: 38175044 DOI: 10.1364/oe.507646] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Accepted: 11/30/2023] [Indexed: 01/05/2024]
Abstract
Monte Carlo (MC) is a powerful tool to study photon migration in scattering media, yet quite time-consuming to solve inverse problems. To speed up MC-simulations, scaling relations can be applied to an existing initial MC-simulation to generate a new data-set with different optical properties. We named this approach trajectory-based since it uses the knowledge of the detected photon trajectories of the initial MC-simulation, in opposition to the slower photon-based approach, where a novel MC-simulation is rerun with new optical properties. We investigated the convergence and applicability limits of the scaling relations, both related to the likelihood that the sample of trajectories considered is representative also for the new optical properties. For absorption, the scaling relation contains smoothly converging Lambert-Beer factors, whereas for scattering it is the product of two quickly diverging factors, whose ratio, for NIRS cases, can easily reach ten orders of magnitude. We investigated such instability by studying the probability-distribution for the number of scattering events in trajectories of given length. We propose a convergence test of the scattering scaling relation based on the minimum-maximum number of scattering events in recorded trajectories. We also studied the dependence of MC-simulations on optical properties, most critical in inverse problems, finding that scattering derivatives are ascribed to small deviations in the distribution of scattering events from a Poisson distribution. This paper, which can also serve as a tutorial, helps to understand the physics of the scaling relations with the causes of their limitations and devise new strategies to deal with them.
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Villagrán-García M, Farina A, Campetella L, Arzalluz-Luque J, Honnorat J. Autonomic nervous system involvement in autoimmune encephalitis and paraneoplastic neurological syndromes. Rev Neurol (Paris) 2024; 180:107-116. [PMID: 38142198 DOI: 10.1016/j.neurol.2023.12.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 12/07/2023] [Accepted: 12/12/2023] [Indexed: 12/25/2023]
Abstract
In autoimmune neurological diseases, the autonomic nervous system can be the primary target of autoimmunity (e.g. autoimmune autonomic ganglionopathy), or, more frequently, be damaged together with other areas of the nervous system (e.g. Guillain-Barré syndrome). Patients with autoimmune encephalitis and paraneoplastic neurological syndromes (PNS) often develop dysautonomia; however, the frequency and spectrum of autonomic signs and symptoms remain ill defined except for those scenarios in which dysautonomia is a core feature of the disease. Such is the case of Lambert-Eaton myasthenic syndrome, Morvan syndrome or anti-NMDAR encephalitis; in the latter, patients with dysautonomia have been reported to carry a more severe disease and to retain higher disability than those without autonomic dysfunction. Likewise, the presence of autonomic involvement indicates a higher risk of death due to neurological cause in patients with anti-Hu PNS. However, in anti-Hu and other PNS, as well as in the context of immune checkpoint inhibitors' toxicities, the characterization of autonomic involvement is frequently overshadowed by the severity of other neurological symptoms and signs. When evaluated with tests specific for autonomic function, patients with autoimmune encephalitis or PNS usually show a more widespread autonomic involvement than clinically suggested, which may reflect a potential gap of care when it comes to diagnosing dysautonomia. This review aims to revise the autonomic involvement in patients with autoimmune encephalitis and PNS, using for that purpose an antibody-based approach. We also discuss and provide general recommendations for the evaluation and management of dysautonomia in these patients.
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Affiliation(s)
- M Villagrán-García
- French Reference Centre on Paraneoplastic Neurological Syndromes and Autoimmune Encephalitis, Hospices Civils de Lyon, hôpital neurologique, Bron, France; Inserm U1314, MeLiS-UCBL-CNRS UMR 5284, University Claude-Bernard Lyon 1, Lyon, France
| | - A Farina
- French Reference Centre on Paraneoplastic Neurological Syndromes and Autoimmune Encephalitis, Hospices Civils de Lyon, hôpital neurologique, Bron, France; Inserm U1314, MeLiS-UCBL-CNRS UMR 5284, University Claude-Bernard Lyon 1, Lyon, France; Department of Neuroscience, Psychology, Pharmacology and Child Health, University of Florence, Florence, Italy
| | - L Campetella
- French Reference Centre on Paraneoplastic Neurological Syndromes and Autoimmune Encephalitis, Hospices Civils de Lyon, hôpital neurologique, Bron, France; Inserm U1314, MeLiS-UCBL-CNRS UMR 5284, University Claude-Bernard Lyon 1, Lyon, France
| | - J Arzalluz-Luque
- French Reference Centre on Paraneoplastic Neurological Syndromes and Autoimmune Encephalitis, Hospices Civils de Lyon, hôpital neurologique, Bron, France; Department of Neurology, Hospital Universitario Virgen Macarena, Sevilla, Spain
| | - J Honnorat
- French Reference Centre on Paraneoplastic Neurological Syndromes and Autoimmune Encephalitis, Hospices Civils de Lyon, hôpital neurologique, Bron, France; Inserm U1314, MeLiS-UCBL-CNRS UMR 5284, University Claude-Bernard Lyon 1, Lyon, France.
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11
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Damagatla V, Lanka P, Brodu A, Noordzij N, Qin-Dregely J, Farina A, Pifferi A. Interstitial null-distance time-domain diffuse optical spectroscopy using a superconducting nanowire detector. J Biomed Opt 2023; 28:121202. [PMID: 37021124 PMCID: PMC10069643 DOI: 10.1117/1.jbo.28.12.121202] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Accepted: 01/09/2023] [Indexed: 05/18/2023]
Abstract
Significance Interstitial fiber-based spectroscopy is gaining interest for real-time in vivo optical biopsies, endoscopic interventions, and local monitoring of therapy. Different from other photonics approaches, time-domain diffuse optical spectroscopy (TD-DOS) can probe the tissue at a few cm distance from the fiber tip and disentangle absorption from the scattering properties. Nevertheless, the signal detected at a short distance from the source is strongly dominated by the photons arriving early at the detector, thus hampering the possibility of resolving late photons, which are rich in information about depth and absorption. Aim To fully benefit from the null-distance approach, a detector with an extremely high dynamic range is required to effectively collect the late photons; the goal of our paper is to test its feasibility to perform TD-DOS measurements at null source-detector separations (NSDS). Approach In particular, we demonstrate the use of a superconducting nanowire single photon detector (SNSPD) to perform TD-DOS at almost NSDS ( ≈ 150 μ m ) by exploiting the high dynamic range and temporal resolution of the SNSPD to extract late arriving, deep-traveling photons from the burst of early photons. Results This approach was demonstrated both on Monte Carlo simulations and on phantom measurements, achieving an accuracy in the retrieval of the water spectrum of better than 15%, spanning almost two decades of absorption change in the 700- to 1100-nm range. Additionally, we show that, for interstitial measurements at null source-detector distance, the scattering coefficient has a negligible effect on late photons, easing the retrieval of the absorption coefficient. Conclusions Utilizing the SNSPD, broadband TD-DOS measurements were performed to successfully retrieve the absorption spectra of the liquid phantoms. Although the SNSPD has certain drawbacks for use in a clinical system, it is an emerging field with research progressing rapidly, and this makes the SNSPD a viable option and a good solution for future research in needle guided time-domain interstitial fiber spectroscopy.
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Affiliation(s)
- Vamshi Damagatla
- Politecnico di Milano, Dipartimento di Fisica, Milano, Italy
- Address all correspondence to Vamshi Damagatla,
| | - Pranav Lanka
- Tyndall National Institute, Biophotonics, IPIC, Cork, Ireland
| | | | | | | | - Andrea Farina
- Istituto di Fotonica e Nanotecnologie, Consiglio Nazionale delle Ricerche, Milano, Italy
| | - Antonio Pifferi
- Politecnico di Milano, Dipartimento di Fisica, Milano, Italy
- Istituto di Fotonica e Nanotecnologie, Consiglio Nazionale delle Ricerche, Milano, Italy
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Šušnjar S, Martelli F, Mosca S, Venkata Sekar SK, Swartling J, Reistad N, Farina A, Pifferi A. Two-layer reconstruction of Raman spectra in diffusive media based on an analytical model in the time domain. Opt Express 2023; 31:40573-40591. [PMID: 38041354 DOI: 10.1364/oe.504105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Accepted: 10/22/2023] [Indexed: 12/03/2023]
Abstract
We derive and validate an analytical model that describes the migration of Raman scattered photons in two-layer diffusive media, based on the diffusion equation in the time domain. The model is derived under a heuristic approximation that background optical properties are identical on the excitation and Raman emission wavelengths. Methods for the reconstruction of two-layer Raman spectra have been developed, tested in computer simulations and validated on tissue-mimicking phantom measurements data. Effects of different parameters were studied in simulations, showing that the thickness of the top layer and number of detected photon counts have the most significant impact on the reconstruction. The concept of quantitative, mathematically rigorous reconstruction using the proposed model was finally proven on experimental measurements, by successfully separating the spectra of silicone and calcium carbonate (calcite) layers, showing the potential for further development and eventual application in clinical diagnostics.
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Cavoretto PI, Silvani P, Farina A. Does intrapartum epidural analgesia influence rate of emergency delivery for fetal compromise? Ultrasound Obstet Gynecol 2023; 62:621-623. [PMID: 37910799 DOI: 10.1002/uog.27494] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Accepted: 09/15/2023] [Indexed: 11/03/2023]
Abstract
Linked articles: This Editorial comments on Damhuis et al. and Tabernée Heijtmeijer et al.
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Affiliation(s)
- P I Cavoretto
- Department of Obstetrics and Gynaecology, IRCCS San Raffaele Scientific Institute, Milan, Italy
- Vita-Salute San Raffaele University, Milan, Italy
| | - P Silvani
- Vita-Salute San Raffaele University, Milan, Italy
- Department of Anesthesiology and Intensive Care, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - A Farina
- Obstetric Unit, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
- Department of Medical and Surgical Sciences (DIMEC), Alma Mater Studiorum, University of Bologna, Bologna, Italy
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Bossi A, Sekar SKV, Lacerenza M, Gandolfi V, Šušnjar S, Lanka P, D’Andrea C, Vanna R, Valentini G, Farina A, Pifferi A. Time domain diffuse Raman spectroscopy using single pixel detection. Biomed Opt Express 2023; 14:5749-5763. [PMID: 38021118 PMCID: PMC10659806 DOI: 10.1364/boe.502022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 09/18/2023] [Accepted: 09/19/2023] [Indexed: 12/01/2023]
Abstract
Diffuse Raman spectroscopy (DIRS) extends the high chemical specificity of Raman scattering to in-depth investigation of thick biological tissues. We present here a novel approach for time-domain diffuse Raman spectroscopy (TD-DIRS) based on a single-pixel detector and a digital micromirror device (DMD) within an imaging spectrometer for wavelength encoding. This overcomes the intrinsic complexity and high cost of detection arrays with ps-resolving time capability. Unlike spatially offset Raman spectroscopy (SORS) or frequency offset Raman spectroscopy (FORS), TD-DIRS exploits the time-of-flight distribution of photons to probe the depth of the Raman signal at a single wavelength with a single source-detector separation. We validated the system using a bilayer tissue-bone mimicking phantom composed of a 1 cm thick slab of silicone overlaying a calcium carbonate specimen and demonstrated a high differentiation of the two Raman signals. We reconstructed the Raman spectra of the two layers, offering the potential for improved and quantitative material analysis. Using a bilayer phantom made of porcine muscle and calcium carbonate, we proved that our system can retrieve Raman peaks even in the presence of autofluorescence typical of biomedical tissues. Overall, our novel TD-DIRS setup proposes a cost-effective and high-performance approach for in-depth Raman spectroscopy in diffusive media.
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Affiliation(s)
- Alessandro Bossi
- Politecnico di Milano, Department of Physics, Milan, Italy
- Politecnico di Milano, Department of Mechanics, Milan, Italy
| | | | - Michele Lacerenza
- Politecnico di Milano, Department of Physics, Milan, Italy
- PIONIRS s.r.l. Milano, Italy
| | | | - Stefan Šušnjar
- SpectraCure AB, Gasverksgatan 1, SE-222 29 Lund, Sweden
- Department of Physics, Lund University, P.O. Box 118, SE-221 00 Lund, Sweden
| | | | | | - Renzo Vanna
- CNR-Institute for Photonics and Nanotechnologies (CNR-IFN), Milan, Italy
| | - Gianluca Valentini
- Politecnico di Milano, Department of Physics, Milan, Italy
- CNR-Institute for Photonics and Nanotechnologies (CNR-IFN), Milan, Italy
| | - Andrea Farina
- CNR-Institute for Photonics and Nanotechnologies (CNR-IFN), Milan, Italy
| | - Antonio Pifferi
- Politecnico di Milano, Department of Physics, Milan, Italy
- CNR-Institute for Photonics and Nanotechnologies (CNR-IFN), Milan, Italy
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15
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Savonitto S, Morici N, Farina A. Exercise Training Effective for Refractory Angina, Likely for Multiple Combined Mechanisms. Am J Cardiol 2023; 205:502-503. [PMID: 37661557 DOI: 10.1016/j.amjcard.2023.08.035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Accepted: 08/08/2023] [Indexed: 09/05/2023]
Affiliation(s)
| | - Nuccia Morici
- IRCCS S. Maria Nascente, Fondazione Don Carlo Gnocchi ONLUS, Milan, Italy
| | - Andrea Farina
- Division of Cardiology, Manzoni Hospital, Lecco, Italy
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16
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Cavoretto PI, Salmeri N, Candiani M, Farina A. Reference ranges of uterine artery pulsatility index from first to third trimester based on serial Doppler measurements: longitudinal cohort study. Ultrasound Obstet Gynecol 2023; 61:474-480. [PMID: 36206548 DOI: 10.1002/uog.26092] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Revised: 09/14/2022] [Accepted: 09/27/2022] [Indexed: 06/16/2023]
Abstract
OBJECTIVE To provide gestational-age (GA)-specific reference ranges for mean uterine artery (UtA) pulsatility index (PI) based on longitudinal data assessment throughout pregnancy. METHODS This was a prospective longitudinal cohort study of singleton low-risk pregnancies with adequate health and nutritional status at the time of enrolment and without fetal anomaly, receiving prenatal care between January 2018 and July 2021 at the Maternal Fetal Medicine Unit of IRCCS San Raffaele Scientific Institute, Milan, Italy. Women were recruited at ≤ 12 + 6 weeks' gestation and underwent serial standardized ultrasound monitoring, including UtA-PI measurement, by experienced certified operators until delivery. Association of UtA-PI with GA was modeled with fractional polynomial regression. Equations for mean ± SD of the estimated curves were calculated, as well as GA-specific reference charts of centiles for UtA-PI from 10 + 0 to 39 + 0 gestational weeks. RESULTS We included 476 healthy, low-risk pregnant women and a total of 2045 ultrasound scans (median, 4 (range, 3-9) per patient) were available for analysis. Mean UtA-PI was 1.84 ± 0.55, 1.07 ± 0.38 and 0.78 ± 0.23 in the first, second and third trimesters of pregnancy, respectively. Goodness-of-fit assessment revealed that second-degree smoothing was the most accurate fractional polynomial for describing the course of UtA-PI throughout gestation; therefore, it was modeled in a multilevel framework for the construction of UtA-PI curves. We observed a rapid and substantial decrease in mean UtA-PI before 16 weeks, with subsequent smoother decrement of the slope and more stable values from 20 until 39 weeks. The 3rd , 5th , 10th , 25th , 50th , 75th , 90th , 95th and 97th centiles according to GA for UtA-PI are provided, as well as equations to allow calculation of any value as a centile. CONCLUSIONS UtA-PI shows a progressive non-linear decrease throughout pregnancy. The new reference ranges for GA-specific mean UtA-PI constructed using rigorous methodology may have a better performance compared with previous models for screening for placenta-associated diseases in the early stages of pregnancy and for evaluating the potential risk for pregnancy-induced hypertension and/or small-for-gestational age later in pregnancy. © 2022 The Authors. Ultrasound in Obstetrics & Gynecology published by John Wiley & Sons Ltd on behalf of International Society of Ultrasound in Obstetrics and Gynecology.
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Affiliation(s)
- P I Cavoretto
- Gynecology and Obstetrics Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy
- Department of Gynecology and Obstetrics, Vita-Salute San Raffaele University, Milan, Italy
| | - N Salmeri
- Gynecology and Obstetrics Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy
- Department of Gynecology and Obstetrics, Vita-Salute San Raffaele University, Milan, Italy
| | - M Candiani
- Gynecology and Obstetrics Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy
- Department of Gynecology and Obstetrics, Vita-Salute San Raffaele University, Milan, Italy
| | - A Farina
- Division of Obstetrics and Prenatal Medicine, Department of Medicine and Surgery (DIMEC), IRCCS Azienda Ospedaliero - Universitaria di Bologna, Bologna, Italy
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17
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Farina A, Villagrán-García M, Honnorat J. Neurological adverse events of immune checkpoint inhibitors: An update of clinical presentations, diagnosis, and management. Rev Neurol (Paris) 2023; 179:506-515. [PMID: 36934022 DOI: 10.1016/j.neurol.2023.03.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [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: 02/14/2023] [Revised: 03/03/2023] [Accepted: 03/03/2023] [Indexed: 03/18/2023]
Abstract
The use of immune checkpoint inhibitors (ICIs) has represented a major advance in cancer treatment. By enhancing endogenous immune responses to destroy cancer cells, ICIs can cause immune-related adverse events (irAEs), with possible involvement of any organ system. IrAEs are frequent, particularly those involving the skin or the endocrine system, and usually completely reversible after temporary immunosuppression, while neurological irAEs (n-irAEs) are relatively rare, often severe, and they carry a considerable risk of mortality and long-term disability. They usually affect the peripheral nervous system, mainly manifesting as myositis, polyradiculoneuropathy, or cranial neuropathy, and, less frequently, involve the central nervous system, causing encephalitis, meningitis, or myelitis. Although somehow reminiscent of the disorders that neurologists are familiar to deal with in their daily practice, n-irAEs are characterized by distinctive features from their idiopathic counterparts; for instance, myositis may have a predominant oculo-bulbar involvement reminiscent of myasthenia gravis and frequently associates with myocarditis; peripheral neuropathy, although often resembling Guillain-Barré syndrome, usually responds to corticosteroids. Remarkably, several associations between the neurological phenotype and the type of ICIs or the type of cancer have emerged in the last few years, and the growing administration of ICIs in patients with neuroendocrine cancers has led to an increased number of reports of paraneoplastic neurological syndromes (triggered or worsened by ICIs). This review aims to update current knowledge regarding the clinical presentation of n-irAEs. We also discuss the essential parts of the diagnostic approach, and we provide general recommendations for the management of these disorders.
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Affiliation(s)
- A Farina
- French Reference Center for Paraneoplastic Neurological Syndromes and Autoimmune Encephalitis, Hospices Civils de Lyon, Hôpital Neurologique, Bron, France; MeLiS, UCBL, CNRS UMR 5284, Inserm U1314, Université Claude-Bernard Lyon 1, Lyon, France; Dipartimento di Neuroscienze, Psicologia, Area del Farmaco e Salute del Bambino, Università di Firenze, Firenze, Italy
| | - M Villagrán-García
- French Reference Center for Paraneoplastic Neurological Syndromes and Autoimmune Encephalitis, Hospices Civils de Lyon, Hôpital Neurologique, Bron, France; MeLiS, UCBL, CNRS UMR 5284, Inserm U1314, Université Claude-Bernard Lyon 1, Lyon, France
| | - J Honnorat
- French Reference Center for Paraneoplastic Neurological Syndromes and Autoimmune Encephalitis, Hospices Civils de Lyon, Hôpital Neurologique, Bron, France; MeLiS, UCBL, CNRS UMR 5284, Inserm U1314, Université Claude-Bernard Lyon 1, Lyon, France.
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18
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Savonitto S, Angelini G, Farina A. Acute, Prolonged, and Extensive Myocardial Ischemia in a Patient With Colorectal Cancer. JAMA Intern Med 2023; 183:156-157. [PMID: 36534380 DOI: 10.1001/jamainternmed.2022.5065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
This case report describes a patient in their 60s with spontaneously subsiding and reoccurring severe acute chest pain that lasted for about 30 minutes as well as a recent diagnosis of colorectal cancer.
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Affiliation(s)
| | | | - Andrea Farina
- Division of Cardiology, Manzoni Hospital, Lecco, Italy
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19
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Larcher L, Jauniaux E, Lenzi J, Ragnedda R, Morano D, Valeriani M, Michelli G, Farina A, Contro E. Ultrasound diagnosis of placental and umbilical cord anomalies in singleton pregnancies resulting from in-vitro fertilization. Placenta 2023; 131:58-64. [PMID: 36493624 DOI: 10.1016/j.placenta.2022.11.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/13/2022] [Revised: 11/19/2022] [Accepted: 11/23/2022] [Indexed: 11/30/2022]
Abstract
INTRODUCTION placental anomalies can affect fetal and maternal outcome due to severe maternal hemorrhage potentially resulting in hysterectomy and cord accident including abruption that can determine fetal damage or death. The aims of our study are to determine if the rate of placental and umbilical cord anomalies are more common in IVF singleton pregnancies compared to spontaneous pregnancies; to evaluate the role of ultrasound in screening for these anomalies and to investigate if oocyte donor fertilization is an additional risk factor for the development of these anomalies. METHODS this was a prospective cohort study involving two tertiary centers. Patients with a singleton pregnancy conceived with IVF and patients presenting with a spontaneous conception were recruited between 1st May 2019 to 31st March 2021. A total of 634 pregnancies were enrolled in the study. All patients underwent similar antenatal care, which included ultrasound examinations at 11-14, 19-22 and 33-35 weeks. Ultrasound findings of placental and/or umbilical cord abnormalities were recorded using the same protocol for both groups and confirmed after birth. RESULTS IVF pregnancies had a significantly higher risk of low-lying placenta, placenta previa, bilobed placenta and velamentous cord insertion (VCI) compared with spontaneous pregnancies. In the heterologous subgroup there was a significant increased incidence of placenta accreta spectrum (PAS) disorders than in spontaneous pregnancies. All these anomalies were identified prenatally on ultrasound imaging and confirmed at birth. DISCUSSION IVF pregnancies in general and those resulting from donor oocyte in particular are at higher risk of placental and umbilical cord abnormalities compared to spontaneous pregnancies. These anomalies can be diagnosed accurately at the mid-trimester detailed fetal anomaly scan and our findings support the need for a targeted ultrasound screening of these anomalies in IVF pregnancies.
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Affiliation(s)
- L Larcher
- Division of Obstetrics and Prenatal Medicine, Department of Medicine and Surgery, IRCCS University Hospital of Bologna, Italy.
| | - E Jauniaux
- EGA Institute for Women's Health, Faculty of Population Health Sciences, University College London, UK
| | - J Lenzi
- Section of Hygiene, Public Health and Medical Statistics, Department of Biomedical and Neuromotor Sciences, Alma Mater Studiorum, University of Bologna, Italy
| | - R Ragnedda
- Division of Obstetrics and Prenatal Medicine, Department of Medicine and Surgery, IRCCS University Hospital of Bologna, Italy
| | - D Morano
- Department of Obstetrics and Gynecology S. Anna University Hospital, Cona, Ferrara, Italy
| | - M Valeriani
- Division of Obstetrics and Prenatal Medicine, Department of Medicine and Surgery, IRCCS University Hospital of Bologna, Italy
| | - G Michelli
- Division of Obstetrics and Prenatal Medicine, Department of Medicine and Surgery, IRCCS University Hospital of Bologna, Italy
| | - A Farina
- Division of Obstetrics and Prenatal Medicine, Department of Medicine and Surgery, IRCCS University Hospital of Bologna, Italy
| | - E Contro
- Division of Obstetrics and Prenatal Medicine, Department of Medicine and Surgery, IRCCS University Hospital of Bologna, Italy
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Farina A, Daus F, Savonitto S, Giannattasio C, Pezzini S. 602 CRITICAL AORTIC STENOSIS IN PROFOUND CARDIOGENIC SHOCH: BRIDGE TO TAVI WITH LEVOSIMENDAN. Eur Heart J Suppl 2022. [DOI: 10.1093/eurheartjsupp/suac121.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Abstract
Cardiogenic shock (CS) in severe aortic stenosis (AS) is associated with high mortality. Percutaneous aortic valve implantation (TAVI) is a possible definite solution, but generally it cannot be performed on an emergency base. In patients with severe systolic dysfunction an augmentation of cardiac index (CI) during dobutamine and nitroprusside infusion can demonstrate contractile and afterload reserve. Invasive hemodynamic monitoring is necessary to keep optimal filling pressure and verify arterial pressure stability. If the hemodynamic response is positive we administer levosimendan to bridge the patient to decision and/or to TAVI. In our small experience this strategy is efficacy and well tolerated.
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Affiliation(s)
| | | | | | | | - Sara Pezzini
- Asst Lecco
- Universita’ Degli Studi Milano Bicocca
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21
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Birzu C, Farina A, Pegat A, Devic P, Lenglet T, Viala K, Debs R, Fargeot G, Picca A, Le Guennec L, Mongin M, Villette B, Joubert B, Maisonobe T, Psimaras D. P11.66.A Immune checkpoint inhibitors related peripheral nerve disorders: clinical and electrophysiological particularities. Neuro Oncol 2022. [DOI: 10.1093/neuonc/noac174.255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
The immune-checkpoint inhibitors (ICIs) announced a new era in cancer treatment allowing long-term survival in advanced cancers. However, immune related adverse events impose treatment limitations being one of the main challenges when dealing with ICI treated patients. Neurologic toxicities have unique presentations and can progress rapidly, requiring prompt recognition. Among them, ICI-related peripheral nerve disorders are highly heterogeneous, profoundly debilitating, and insufficiently explored.
Material and Methods
We reviewed the clinical and electrodiagnostic features of a retrospective cohort of patients hospitalized in our centre for ICI related neuropathies. We applied the EFNS 2021 electrodiagnostic criteria for neuropathies and we researched the outcome according to the treatment received.
Results
We included 16 patients: 4 men and 12 women, median age 61 years (31-72) treated by anti-PD1 monotherapy (10) or antiCTLA4-antiPD1 combination (6). Median delay from ICIs initiation to neuropathy symptoms was 58,5 days (4 cycles), it seemed lower in combination group (median 33,5 days vs 81,5 days in monotherapy patients p=0,02). Half of patients presented with concurrent non-neurological irAE. CSF was inflammatory in 56% of cases, pleocytosis was seen in 57% of these. Cranial nerve involvement was rare (3/16) the most frequent phenotype was demyelinating polyneuropathy fulfilling EFNS 2021 EMG criteria in 10 cases. The other 6 presented with non-length dependent sensory neuropathy, (3) dysautonomic neuropathy (1) or sensory motor neuropathy with incomplete EFNS 2021 EMG criteria (2). ICI treatment was stopped, and steroids were the first line of treatment for all patients. However, 12/16 patients received additional iv immunoglobulin. Supplementary immunomodulation (cyclophosphamide, tocilizumab) was required in 2 cases. 75% of patients improved within a median of 4.5 months, median decrease in mRS was 2 points. Noteworthy, the rechallenge by antiPD1 monotherapy was proposed in 4 patients with a single neuropathy relapse.
Conclusion
Our series expand the knowledge on the clinical and electrophysiological phenotype of ICI related neuropathies improving their recognition in clinical practice. Moreover, our findings argue for the benefit of adding iv immunoglobulin to steroids as a first line treatment for different phenotypes of ICI related neuropathies.
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Affiliation(s)
- C Birzu
- Institut du Cerveau, ICM, AP-HP, Inserm, UMR S 1127, Sorbonne Université, Hôpitaux Universitaires La Pitié Salpêtrière-Charles Foix, , Paris , France
- Service de Neurologie 2-Mazarin Hôpitaux Universitaires La Pitié Salpêtrière-Charles Foix, , Paris , France
| | - A Farina
- Centre Léon Bérard, 28 Rue Laënnec, Université Claude Bernard Lyon I , Lyon , France
| | - A Pegat
- Service de Neurologie fonctionnelle et Epileptologie, CHU Pierre Wertheimer, 69 Bdv Pinel, 69677 Bron-Cedex , Lyon , France
| | - P Devic
- Service de Neurologie fonctionnelle et Epileptologie, CHU Pierre Wertheimer, 69 Bdv Pinel, 69677 Bron-Cedex, , Lyon , France
| | - T Lenglet
- Département de Neurophysiologie Clinique, AP-HP, Groupe Hospitalier Pitié-Salpêtrière , Paris , France
| | - K Viala
- Département de Neurophysiologie Clinique, AP-HP, Groupe Hospitalier Pitié-Salpêtrière , Paris , France
| | - R Debs
- Département de Neurophysiologie Clinique, AP-HP, Groupe Hospitalier Pitié-Salpêtrière , Paris , France
| | - G Fargeot
- Département de Neurophysiologie Clinique, AP-HP, Groupe Hospitalier Pitié-Salpêtrière , Paris , France
| | - A Picca
- Institut du Cerveau, ICM, AP-HP, Inserm, UMR S 1127, Sorbonne Université, Hôpitaux Universitaires La Pitié Salpêtrière-Charles Foix, , Paris , France
- Service de Neurologie 2-Mazarin Hôpitaux Universitaires La Pitié Salpêtrière-Charles Foix , Paris , France
| | - L Le Guennec
- Sorbonne Université, AP-HP Hôpital de la Pitié-Salpêtrière, département de neurologie, unité de Médecine Intensive Réanimation à orientation neurologique , Paris , France
| | - M Mongin
- Service de Neurologie Hôpital Avicenne, 93000 Bobigny , Bobigny , France
| | - B Villette
- Service Dermatologie, Hôpital Avicenne, 93000 , Bobigny , France
| | - B Joubert
- Centre français de référence des syndromes neurologiques paranéoplasiques et des encéphalites auto-immunes, Hospices civils de Lyon; Équipe Synaptopathies et auto-anticorps (SynatAc)nstitut NeuroMyoGène, Inserm U1217/CNRS UMR 5310, , Lyon , France
| | - T Maisonobe
- Département de Neurophysiologie Clinique, AP-HP, Groupe Hospitalier Pitié-Salpêtrière , Paris , France
| | - D Psimaras
- Service de Neurologie 2-Mazarin Hôpitaux Universitaires La Pitié Salpêtrière-Charles Foix , Paris , France
- Département de Neurophysiologie Clinique, AP-HP, Groupe Hospitalier Pitié-Salpêtrière , Paris , France
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Cavoretto PI, Farina A, Gaeta G, Seidenari A, Pozzoni M, Spinillo S, Morano D, Alteri A, Viganò P, Candiani M. Greater estimated fetal weight and birth weight in IVF/ICSI pregnancy after frozen-thawed vs fresh blastocyst transfer: prospective cohort study with novel unified modeling methodology. Ultrasound Obstet Gynecol 2022; 60:76-85. [PMID: 34716733 DOI: 10.1002/uog.24806] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 09/25/2021] [Accepted: 10/20/2021] [Indexed: 06/13/2023]
Abstract
OBJECTIVE To compare, using a unified approach, standardized estimated fetal weight (EFW) trajectories from the second trimester to birth and birth-weight (BW) measurements in in-vitro fertilization/intracytoplasmic sperm injection (IVF/ICSI) pregnancies obtained after frozen-thawed vs fresh blastocyst transfer (BT). METHODS This was a secondary analysis of a prospective longitudinal cohort study performed at the Fetal Medicine and Obstetric Departments of San Raffaele Hospital in Milan, Italy, from January 2016 to December 2020. Eligible for inclusion were singleton viable gestations conceived by autologous IVF/ICSI conception after fresh or frozen-thawed BT that underwent standard fetal biometry assessment at 19-41 weeks and had BW measurements available. All ultrasound assessments were performed by operators blinded to the employment of cryopreservation. Patients with twin gestation, significant pregestational disease, miscarriage, major fetal abnormalities and use of other types of medically assisted reproduction techniques were excluded. EFW and BW Z-scores and their trajectories were analyzed using general linear models (GLM) and logistic regression with a unified modeling methodology based on the Fetal Medicine Foundation fetal and neonatal population weight charts, adjusting for major confounders. Differences between prenatal EFW and postnatal BW centiles in the two groups were assessed and compared using contingency tables, χ2 test and conversion of prenatal to postnatal centiles. RESULTS A total of 631 IVF/ICSI pregnancies were considered, comprising 263 conceived following fresh BT and 368 after frozen-thawed BT. A total of 1795 EFW observations were available (n = 715 in fresh BT group and n = 1080 in frozen-thawed BT group; median of three observations per patient). EFW and BW < 10th centile were significantly more frequent in the fresh than in the frozen-thawed BT group (P = 0.003 and P < 0.001, respectively). EFW and BW > 90th centile were significantly more frequent in the frozen-thawed vs fresh BT group (P = 0.034 and P = 0.002, respectively). GLM showed significantly decreasing EFW Z-scores with advancing gestational age (GA) in both groups. The effect of GA was assumed to be equal in the two study groups, as no significant interaction effect was found. Smoothed mean EFW Z-scores from 19 weeks of gestation to term and smoothed mean BW Z-scores were both significantly higher in the frozen-thawed compared with the fresh BT group (EFW Z-score, 0.70 ± 1.29 vs 0.28 ± 1.43; P < 0.001; BW Z-score, 0.04 ± 1.08 vs -0.31 ± 1.28; P < 0.001). Mean smoothed EFW Z-score values in the frozen-thawed vs fresh BT groups were 1.01 ± 0.12 vs 0.60 ± 0.08 at 19-27 weeks, 0.36 ± 0.07 vs -0.06 ± 0.04 at 28-35 weeks and -0.66 ± 0.01 vs -0.88 ± 0.02 at 36-41 weeks. Mean smoothed BW Z-score values in the frozen-thawed vs fresh BT groups were -0.80 ± 0.14 vs -1.20 ± 0.10 at 28-35 weeks and 0.22 ± 0.16 vs -0.24 ± 0.14 at 36-41 weeks. Assessment of EFW and BW concordance showed a significantly greater rate of postnatal confirmation of prenatally predicted small-for-gestational age (SGA) < 10th centile in the fresh compared with the frozen-thawed BT group (P < 0.001), whereas the rate of postnatal confirmation of large-for-gestational age (LGA) > 90th centile was significantly higher in the frozen-thawed vs the fresh BT group (P < 0.001). Logistic regression analysis showed that the smoothed rate of EFW < 3rd centile was about 6-fold higher in the fresh vs frozen-thawed BT group (P < 0.001), whereas the smoothed rates of EFW 90th -97th centile and > 97th centile were nearly double in the frozen-thawed compared with the fresh BT group (P < 0.05 and P < 0.001, respectively). CONCLUSIONS Robust novel unified prenatal-postnatal modeling in IVF/ICSI pregnancies after frozen-thawed or fresh BT from 19 weeks of gestation to birth showed non-divergent growth trajectories, with higher EFW and BW Z-scores in the frozen-thawed vs fresh BT group. The mean EFW Z-scores in both IVF/ICSI groups were greater than those expected for natural conceptions, being highest in the midtrimester and decreasing with advancing gestation in both groups, becoming negative after 32 weeks in the fresh and after 35 weeks in the frozen-thawed BT group. Mean BW Z-scores were negative in both groups, with lower values in preterm fetuses, and increased with advancing gestation, becoming positive at term in the frozen-thawed BT group. IVF/ICSI conceptions from frozen-thawed as compared to fresh BT presented increased rate of LGA and reduced rate of SGA both prenatally and postnatally. © 2021 International Society of Ultrasound in Obstetrics and Gynecology.
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Affiliation(s)
- P I Cavoretto
- Department of Obstetrics and Gynecology, IRCCS San Raffaele Hospital, Milan, Italy
- University Vita-Salute, Milan, Italy
| | - A Farina
- Division of Obstetrics and Prenatal Medicine, Department of Medicine and Surgery (DIMEC), IRCCS Azienda Ospedaliero-Universitaria di Bologna, Italy
| | - G Gaeta
- Department of Obstetrics and Gynecology, IRCCS San Raffaele Hospital, Milan, Italy
- University Vita-Salute, Milan, Italy
| | - A Seidenari
- Division of Obstetrics and Prenatal Medicine, Department of Medicine and Surgery (DIMEC), IRCCS Azienda Ospedaliero-Universitaria di Bologna, Italy
| | - M Pozzoni
- Department of Obstetrics and Gynecology, IRCCS San Raffaele Hospital, Milan, Italy
- University Vita-Salute, Milan, Italy
| | - S Spinillo
- Department of Obstetrics and Gynecology, IRCCS San Raffaele Hospital, Milan, Italy
- University Vita-Salute, Milan, Italy
| | - D Morano
- Department of Obstetrics and Gynecology, Sant'Anna University Hospital, Cona, Ferrara, Italy
| | - A Alteri
- Department of Obstetrics and Gynecology, IRCCS San Raffaele Hospital, Milan, Italy
- University Vita-Salute, Milan, Italy
| | - P Viganò
- Department of Obstetrics and Gynecology, IRCCS San Raffaele Hospital, Milan, Italy
- University Vita-Salute, Milan, Italy
| | - M Candiani
- Department of Obstetrics and Gynecology, IRCCS San Raffaele Hospital, Milan, Italy
- University Vita-Salute, Milan, Italy
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Calisesi G, Ancora D, Tacconi C, Fantin A, Perin P, Pizzala R, Valentini G, Farina A, Bassi A. Enlarged Field of View in Spatially Modulated Selective Volume Illumination Microscopy. Microsc Microanal 2022; 28:1-10. [PMID: 35698867 DOI: 10.1017/s1431927622012077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Three-dimensional fluorescence microscopy is a key technology for inspecting biological samples, ranging from single cells to entire organisms. We recently proposed a novel approach called spatially modulated Selective Volume Illumination Microscopy (smSVIM) to suppress illumination artifacts and to reduce the required number of measurements using an LED source. Here, we discuss a new strategy based on smSVIM for imaging large transparent specimens or voluminous chemically cleared tissues. The strategy permits steady mounting of the sample, achieving uniform resolution over a large field of view thanks to the synchronized motion of the illumination lens and the camera rolling shutter. Aided by a tailored deconvolution method for image reconstruction, we demonstrate significant improvement of the resolution at different magnification using samples of varying sizes and spatial features.
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Affiliation(s)
| | - Daniele Ancora
- Department of Physics, Politecnico di Milano, 20133Milano, Italy
| | - Carlotta Tacconi
- Department of Biosciences, University of Milano, 20133Milano, Italy
| | | | - Paola Perin
- Department of Brain and Behaviour Science, University of Pavia, 27100Pavia, Italy
| | - Roberto Pizzala
- Department of Molecular Medicine, University of Pavia, 27100Pavia, Italy
| | - Gianluca Valentini
- Department of Physics, Politecnico di Milano, 20133Milano, Italy
- Istituto di Fotonica e Nanotecnologie, Consiglio Nazionale delle ricerche, 20133Milano, Italy
| | - Andrea Farina
- Istituto di Fotonica e Nanotecnologie, Consiglio Nazionale delle ricerche, 20133Milano, Italy
| | - Andrea Bassi
- Department of Physics, Politecnico di Milano, 20133Milano, Italy
- Istituto di Fotonica e Nanotecnologie, Consiglio Nazionale delle ricerche, 20133Milano, Italy
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24
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Pina A, Farina A, Savonitto S. Immunomediated Sequential Dissection of Visceral Arteries: Dramatic Improvement After Steroid Therapy. Am J Med 2022; 135:e130-e131. [PMID: 35217014 PMCID: PMC8863431 DOI: 10.1016/j.amjmed.2022.01.047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Accepted: 01/18/2022] [Indexed: 11/26/2022]
Affiliation(s)
- Alessandra Pina
- Cardiovascular Department, "A. Manzoni" Hospital - Lecco (LC), Lecco, Italy
| | - Andrea Farina
- Cardiovascular Department, "A. Manzoni" Hospital - Lecco (LC), Lecco, Italy
| | - Stefano Savonitto
- Cardiovascular Department, "A. Manzoni" Hospital - Lecco (LC), Lecco, Italy.
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25
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Ariani A, Parisi S, Del Medico P, Farina A, Visalli E, Molica Colella A, Lumetti F, Caccavale R, Scolieri P, Andracco R, Girelli F, Bravi E, Colina M, Franchina V, Platé I, DI Donato E, Amato G, Salvarani C, De Lucia F, Santilli D, Arrigoni E, Mozzani F, Foti R, Sandri G, Bruzzese V, Paroli M, Fusaro E, Becciolini A. POS1027 APREMILAST EFFICACY IN REAL WORLD SETTINGS: RESULTS FROM AN ITALIAN MULTI-CENTER OBSERVATIONAL STUDY. Ann Rheum Dis 2022. [DOI: 10.1136/annrheumdis-2022-eular.1300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
BackgroundApremilast, an inhibitor of the phosphodiesterase 4, is indicated for Psoriatic Arthritis (PsA) treatment. The 3 years retention rate, an outcome indirectly related to efficacy, observed in clinical trials [1] is 55,5%. A single subsequent real world setting study [2] suggested a lower efficacy as it reported that the six months retention rate was about 57%.ObjectivesThe main aim of this retrospective observational study is the assessment of apremilast 3 years retention rate in a real world PsA patients’ cohort. Moreover, the secondary objective is reporting the reasons of apremilast suspension and the most relevant factor related to treatment persistence.MethodsIn thirteen Italian rheumatological referral centers, all PsA consecutive patients who received apremilast were enrolled. Anamnestic data, treatment history and PsA disease activity (DAPSA) at baseline and after 6 and 12 months were recorded. The Kaplan-Meier curve and the Cox analysis computed the apremilast retention rate and treatment persistence-related risk factors. A p-value < 0.05 was considered statistically significant.ResultsThe three-hundred-twenty-four enrolled patients (median age 60 [InterQuartile Range IQR 52-67] yrs; female prevalence 57,0%) median observation period was 17 [IQR 7-36] months (6848 patients-months). The apremilast retention rate at 6, 12 and 36 months was, respectively, 95%, 86% and 66% (Figure 1). The main discontinuation reasons were: primary inefficacy (40% of interruptions), secondary inefficacy (18%) and gastro-intestinal intolerance (17%%). The oligo-articular onset was the only factor associated to apremilast persistence (Hazard ratio 0.57 IQR 0.34-0.96). Sex, age, and sever comorbidities (cancer, chronic infections etc) were not related to treatment discontinuation. The basal DAPSA (24.1, IQR 18.5-32.0) decreased after 6 and 12 months (respectively 14.5, IQR 10.1-22.6 and 10.5, IQR 8,0-15.2). Remission or minimal disease activity (DAPSA < 15) was achieved after 12 months in 38.0% of patients.ConclusionAlmost two third of PsA patients receiving apremilast were still in treatment after 3 years. The study’s data, confirmed its efficacy and safety profile. Apremilast appear a good treatment choice in patients with oligo articular PsA or burdened by severe comorbidities.References[1]Mease et al. ACR Open Rheumatology (2020)[2]Favalli et al Clin Exp Rheum (2020)Disclosure of InterestsAlarico Ariani Speakers bureau: Zentiva, Consultant of: Boeringher, Amgen, Bristol-Meyers-Squibb, Novartis, Sanofi, Novo Nordisk, Lilly, Janssen, Bruno Farmaceutici, Simone Parisi: None declared, Patrizia Del Medico: None declared, antonella farina: None declared, elisa visalli: None declared, Aldo Molica Colella: None declared, Federica Lumetti Consultant of: Amgen, rosalba caccavale: None declared, Palma Scolieri: None declared, Romina Andracco: None declared, Francesco Girelli: None declared, Elena Bravi: None declared, Matteo Colina: None declared, Veronica Franchina: None declared, Ilaria Platé: None declared, eleonora Di Donato Consultant of: Novartis, Giorgio Amato: None declared, Carlo Salvarani: None declared, Francesco De Lucia: None declared, Daniele Santilli Consultant of: Novartis, eugenio arrigoni: None declared, Flavio Mozzani Consultant of: Novartis, Abbvie, Rosario Foti: None declared, Gilda Sandri: None declared, Vincenzo Bruzzese: None declared, Marino Paroli: None declared, Enrico Fusaro: None declared, Andrea Becciolini: None declared
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26
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Lanka P, Yang L, Orive-Miguel D, Veesa JD, Tagliabue S, Sudakou A, Samaei S, Forcione M, Kovacsova Z, Behera A, Gladytz T, Grosenick D, Hervé L, Durduran T, Bejm K, Morawiec M, Kacprzak M, Sawosz P, Gerega A, Liebert A, Belli A, Tachtsidis I, Lange F, Bale G, Baratelli L, Gioux S, Alexander K, Wolf M, Sekar SKV, Zanoletti M, Pirovano I, Lacerenza M, Qiu L, Ferocino E, Maffeis G, Amendola C, Colombo L, Frabasile L, Levoni P, Buttafava M, Renna M, Di Sieno L, Re R, Farina A, Spinelli L, Dalla Mora A, Contini D, Taroni P, Tosi A, Torricelli A, Dehghani H, Wabnitz H, Pifferi A. Multi-laboratory performance assessment of diffuse optics instruments: the BitMap exercise. J Biomed Opt 2022; 27:JBO-210373SSR. [PMID: 35701869 PMCID: PMC9199954 DOI: 10.1117/1.jbo.27.7.074716] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Accepted: 05/05/2022] [Indexed: 05/06/2023]
Abstract
SIGNIFICANCE Multi-laboratory initiatives are essential in performance assessment and standardization-crucial for bringing biophotonics to mature clinical use-to establish protocols and develop reference tissue phantoms that all will allow universal instrument comparison. AIM The largest multi-laboratory comparison of performance assessment in near-infrared diffuse optics is presented, involving 28 instruments and 12 institutions on a total of eight experiments based on three consolidated protocols (BIP, MEDPHOT, and NEUROPT) as implemented on three kits of tissue phantoms. A total of 20 synthetic indicators were extracted from the dataset, some of them defined here anew. APPROACH The exercise stems from the Innovative Training Network BitMap funded by the European Commission and expanded to include other European laboratories. A large variety of diffuse optics instruments were considered, based on different approaches (time domain/frequency domain/continuous wave), at various stages of maturity and designed for different applications (e.g., oximetry, spectroscopy, and imaging). RESULTS This study highlights a substantial difference in hardware performances (e.g., nine decades in responsivity, four decades in dark count rate, and one decade in temporal resolution). Agreement in the estimates of homogeneous optical properties was within 12% of the median value for half of the systems, with a temporal stability of <5 % over 1 h, and day-to-day reproducibility of <3 % . Other tests encompassed linearity, crosstalk, uncertainty, and detection of optical inhomogeneities. CONCLUSIONS This extensive multi-laboratory exercise provides a detailed assessment of near-infrared Diffuse optical instruments and can be used for reference grading. The dataset-available soon in an open data repository-can be evaluated in multiple ways, for instance, to compare different analysis tools or study the impact of hardware implementations.
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Affiliation(s)
- Pranav Lanka
- Politecnico di Milano, Dipartimento di Fisica, Milano, Italy
- Address all correspondence to Pranav Lanka, ; Heidrun Wabnitz,
| | - Lin Yang
- Physikalisch-Technische Bundesanstalt (PTB), Berlin, Germany
| | | | - Joshua Deepak Veesa
- University of Birmingham, School of Computer Science, Birmingham, United Kingdom
| | | | - Aleh Sudakou
- Nalecz Institute of Biocybernetics and Biomedical Engineering, Warsaw, Poland
| | - Saeed Samaei
- Nalecz Institute of Biocybernetics and Biomedical Engineering, Warsaw, Poland
| | - Mario Forcione
- University Hospitals Birmingham, National Institute for Health Research Surgical Reconstruction and Microbiology Research Centre, Birmingham, United Kingdom
| | - Zuzana Kovacsova
- UCL, Department of Medical Physics & Biomedical Engineering, London, United Kingdom
| | - Anurag Behera
- Politecnico di Milano, Dipartimento di Fisica, Milano, Italy
| | - Thomas Gladytz
- Physikalisch-Technische Bundesanstalt (PTB), Berlin, Germany
| | - Dirk Grosenick
- Physikalisch-Technische Bundesanstalt (PTB), Berlin, Germany
| | - Lionel Hervé
- Université Grenoble Alpes, CEA, LETI, DTBS, Grenoble, France
| | - Turgut Durduran
- The Institute of Photonic Sciences (ICFO), Castelldefels, Spain
| | - Karolina Bejm
- Nalecz Institute of Biocybernetics and Biomedical Engineering, Warsaw, Poland
| | - Magdalena Morawiec
- Nalecz Institute of Biocybernetics and Biomedical Engineering, Warsaw, Poland
| | - Michał Kacprzak
- Nalecz Institute of Biocybernetics and Biomedical Engineering, Warsaw, Poland
| | - Piotr Sawosz
- Nalecz Institute of Biocybernetics and Biomedical Engineering, Warsaw, Poland
| | - Anna Gerega
- Nalecz Institute of Biocybernetics and Biomedical Engineering, Warsaw, Poland
| | - Adam Liebert
- Nalecz Institute of Biocybernetics and Biomedical Engineering, Warsaw, Poland
| | - Antonio Belli
- University Hospitals Birmingham, National Institute for Health Research Surgical Reconstruction and Microbiology Research Centre, Birmingham, United Kingdom
| | - Ilias Tachtsidis
- UCL, Department of Medical Physics & Biomedical Engineering, London, United Kingdom
| | - Frédéric Lange
- UCL, Department of Medical Physics & Biomedical Engineering, London, United Kingdom
| | - Gemma Bale
- University of Cambridge, Department of Engineering and Department of Physics, Cambridge, United Kingdom
| | - Luca Baratelli
- University of Strasbourg, ICube Laboratory, Strasbourg, France
| | - Sylvain Gioux
- University of Strasbourg, ICube Laboratory, Strasbourg, France
| | - Kalyanov Alexander
- University Hospital Zurich, Biomedical Optics Research Laboratory, Department of Neonatology, Zurich, Switzerland
| | - Martin Wolf
- University Hospital Zurich, Biomedical Optics Research Laboratory, Department of Neonatology, Zurich, Switzerland
| | | | - Marta Zanoletti
- Politecnico di Milano, Dipartimento di Fisica, Milano, Italy
| | - Ileana Pirovano
- Politecnico di Milano, Dipartimento di Fisica, Milano, Italy
| | | | - Lina Qiu
- South China Normal University, School of Software, Guangzhou, China
| | | | - Giulia Maffeis
- Politecnico di Milano, Dipartimento di Fisica, Milano, Italy
| | | | - Lorenzo Colombo
- Politecnico di Milano, Dipartimento di Fisica, Milano, Italy
| | | | - Pietro Levoni
- Politecnico di Milano, Dipartimento di Fisica, Milano, Italy
| | | | - Marco Renna
- Istituto di Fotonica e Nanotecnologie, Milano, Italy
| | - Laura Di Sieno
- Politecnico di Milano, Dipartimento di Fisica, Milano, Italy
| | - Rebecca Re
- Politecnico di Milano, Dipartimento di Fisica, Milano, Italy
- Politecnico di Milano, Dipartimento di Elettronica, Informazione e Bioingegneria, Milano, Italy
| | - Andrea Farina
- Politecnico di Milano, Dipartimento di Elettronica, Informazione e Bioingegneria, Milano, Italy
| | - Lorenzo Spinelli
- Politecnico di Milano, Dipartimento di Elettronica, Informazione e Bioingegneria, Milano, Italy
| | | | - Davide Contini
- Politecnico di Milano, Dipartimento di Fisica, Milano, Italy
| | - Paola Taroni
- Politecnico di Milano, Dipartimento di Fisica, Milano, Italy
| | - Alberto Tosi
- Istituto di Fotonica e Nanotecnologie, Milano, Italy
| | | | - Hamid Dehghani
- University of Birmingham, School of Computer Science, Birmingham, United Kingdom
| | - Heidrun Wabnitz
- Physikalisch-Technische Bundesanstalt (PTB), Berlin, Germany
- Address all correspondence to Pranav Lanka, ; Heidrun Wabnitz,
| | - Antonio Pifferi
- Politecnico di Milano, Dipartimento di Fisica, Milano, Italy
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27
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Golino M, Angelini G, Errigo V, Farina A, Savonitto S. Chest pain in a Ukrainian woman living in Italy immediately after news of homeland Russian invasion. Eur J Intern Med 2022; 99:93-95. [PMID: 35256207 DOI: 10.1016/j.ejim.2022.02.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/26/2022] [Accepted: 02/27/2022] [Indexed: 11/25/2022]
Affiliation(s)
- Michele Golino
- Department of Medicine and Surgery, University of Insubria, Varese, Italy
| | | | - Vittoria Errigo
- ASST Lecco, "A. Manzoni" Hospital, Lecco, Italy; University of Campania "Luigi Vanvitelli", AORN dei Colli/Monaldi Hospital, Naples, Italy
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Vargas DY, Tyagi S, Marras SA, Moerzinger P, Abin-Carriquiry JA, Cuello M, Rodriguez C, Martinez A, Makhnin A, Farina A, Patel C, Chuang TL, Li BT, Kramer FR. Multiplex SuperSelective PCR Assays for the Detection and Quantitation of Rare Somatic Mutations in Liquid Biopsies. J Mol Diagn 2022; 24:189-204. [PMID: 34954118 PMCID: PMC8961470 DOI: 10.1016/j.jmoldx.2021.11.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 10/11/2021] [Accepted: 11/30/2021] [Indexed: 11/26/2022] Open
Abstract
SuperSelective primers, by virtue of their unique design, enable the simultaneous identification and quantitation of inherited reference genes and rare somatic mutations in routine multiplex PCR assays, while virtually eliminating signals from abundant wild-type sequences closely related to the target mutations. These assays are sensitive, specific, rapid, and low cost, and can be performed in widely available spectrofluorometric thermal cyclers. Herein, we provide examples of SuperSelective PCR assays that target eight different somatic EGFR mutations, irrespective of whether they occur in the same codon, occur at separate sites within the same exon, or involve deletions. In addition, we provide examples of SuperSelective PCR assays that detect specific EGFR mutations in circulating tumor DNA present in the plasma of liquid biopsies obtained from patients with non-small-cell lung cancer. The results suggest that multiplex SuperSelective PCR assays may enable the choice, and subsequent modification, of effective targeted therapies for the treatment of an individual's cancer, utilizing frequent noninvasive liquid biopsies.
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Affiliation(s)
- Diana Y. Vargas
- Public Health Research Institute, New Jersey Medical School, Rutgers University, Newark, New Jersey
| | - Sanjay Tyagi
- Public Health Research Institute, New Jersey Medical School, Rutgers University, Newark, New Jersey
| | - Salvatore A.E. Marras
- Public Health Research Institute, New Jersey Medical School, Rutgers University, Newark, New Jersey
| | | | | | - Mauricio Cuello
- Servicio de Oncología Clínica, Hospital de Clínicas, Montevideo, Uruguay
| | - Clara Rodriguez
- Servicio de Oncología Clínica, Hospital de Clínicas, Montevideo, Uruguay
| | | | - Alex Makhnin
- Memorial Sloan Kettering Cancer Center, New York, New York
| | - Andrea Farina
- Memorial Sloan Kettering Cancer Center, New York, New York
| | - Chintan Patel
- Memorial Sloan Kettering Cancer Center, New York, New York
| | - Tuan L. Chuang
- Memorial Sloan Kettering Cancer Center, New York, New York
| | - Bob T. Li
- Memorial Sloan Kettering Cancer Center, New York, New York,Weill-Cornell Medicine, New York, New York,Address correspondence to Fred R. Kramer, Ph.D., Public Health Research Institute, 225 Warren St., Newark, NJ 07103; or Bob T. Li, M.D., Thoracic Liquid Biopsy Program, Memorial Sloan Kettering Cancer Center, 1275 York Ave., New York, NY 10065.
| | - Fred R. Kramer
- Public Health Research Institute, New Jersey Medical School, Rutgers University, Newark, New Jersey,Address correspondence to Fred R. Kramer, Ph.D., Public Health Research Institute, 225 Warren St., Newark, NJ 07103; or Bob T. Li, M.D., Thoracic Liquid Biopsy Program, Memorial Sloan Kettering Cancer Center, 1275 York Ave., New York, NY 10065.
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Di Sciacca G, Maffeis G, Farina A, Dalla Mora A, Pifferi A, Taroni P, Arridge S. Evaluation of a pipeline for simulation, reconstruction, and classification in ultrasound-aided diffuse optical tomography of breast tumors. J Biomed Opt 2022; 27:JBO-210385GRR. [PMID: 35332743 PMCID: PMC8943242 DOI: 10.1117/1.jbo.27.3.036003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Accepted: 02/28/2022] [Indexed: 06/01/2023]
Abstract
SIGNIFICANCE Diffuse optical tomography is an ill-posed problem. Combination with ultrasound can improve the results of diffuse optical tomography applied to the diagnosis of breast cancer and allow for classification of lesions. AIM To provide a simulation pipeline for the assessment of reconstruction and classification methods for diffuse optical tomography with concurrent ultrasound information. APPROACH A set of breast digital phantoms with benign and malignant lesions was simulated building on the software VICTRE. Acoustic and optical properties were assigned to the phantoms for the generation of B-mode images and optical data. A reconstruction algorithm based on a two-region nonlinear fitting and incorporating the ultrasound information was tested. Machine learning classification methods were applied to the reconstructed values to discriminate lesions into benign and malignant after reconstruction. RESULTS The approach allowed us to generate realistic US and optical data and to test a two-region reconstruction method for a large number of realistic simulations. When information is extracted from ultrasound images, at least 75% of lesions are correctly classified. With ideal two-region separation, the accuracy is higher than 80%. CONCLUSIONS A pipeline for the generation of realistic ultrasound and diffuse optics data was implemented. Machine learning methods applied to a optical reconstruction with a nonlinear optical model and morphological information permit to discriminate malignant lesions from benign ones.
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Affiliation(s)
- Giuseppe Di Sciacca
- University College London, Department of Computer Science, London, United Kingdom
- Politecnico di Milano, Dipartimento di Fisica, Milano, Italy
| | - Giulia Maffeis
- Politecnico di Milano, Dipartimento di Fisica, Milano, Italy
| | - Andrea Farina
- Istituto di Fotonica e Nanotecnologie, Consiglio Nazionale delle Ricerche, Milano, Italy
| | | | - Antonio Pifferi
- Politecnico di Milano, Dipartimento di Fisica, Milano, Italy
- Istituto di Fotonica e Nanotecnologie, Consiglio Nazionale delle Ricerche, Milano, Italy
| | - Paola Taroni
- Politecnico di Milano, Dipartimento di Fisica, Milano, Italy
- Istituto di Fotonica e Nanotecnologie, Consiglio Nazionale delle Ricerche, Milano, Italy
| | - Simon Arridge
- University College London, Department of Computer Science, London, United Kingdom
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Farina S, Labanca I, Acconcia G, Ghezzi A, Farina A, D'Andrea C, Rech I. Above pile-up fluorescence microscopy with a 32 Mc/s single-channel time-resolved SPAD system. Opt Lett 2022; 47:82-85. [PMID: 34951886 DOI: 10.1364/ol.444815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Accepted: 11/15/2021] [Indexed: 06/14/2023]
Abstract
One of the major drawbacks of time-correlated single-photon counting (TCSPC) is generally represented by pile-up distortion, which strongly bounds the maximum acquisition speed to a few percent of the laser excitation rate. Based on a previous theoretical analysis, recently we presented the first, to the best of our knowledge, low-distortion and high-speed TCSPC system capable of overcoming the pile-up limitation by perfectly matching the single-photon avalanche diode (SPAD) dead time to the laser period. In this work, we validate the proposed system in a standard fluorescence measurement by comparing experimental data with the reference theoretical framework. As a result, a count rate of 32 Mc/s was achieved with a single-channel system still observing a negligible lifetime distortion.
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Villajos B, Tolosana-Moranchel Á, Canle M, Farina A, Gascó A, Mesa-Medina S, Faraldos M, Hermosilla D, Bahamonde A. Photocatalytic Degradation of Alachlor over Titania-Reduced Graphene Oxide Nanocomposite: Intrinsic Kinetic Model and Reaction Pathways. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.1c04304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Beatriz Villajos
- Environmental Catalysis Engineering Group, Instituto de Catálisis y Petroleoquímica, ICP-CSIC, Marie Curie 2, 28049 Madrid, Spain
| | - Álvaro Tolosana-Moranchel
- Nanotechnology and Integrated BioEngineering Centre, School of Engineering, Ulster University, Northern Ireland, BT37 0QB, United Kingdom
| | - Moisés Canle
- React!, Departamento de Química, Facultade de Ciencias & CICA, Universidade da Coruña, A Coruña, E-15071, Spain
| | - Andrea Farina
- Department of Chemistry, Materials and Chemical Engineering “Giulio Natta”, Politecnico di Milano, Piazza Leonardo da Vinci 32, Milano, 20133, Italy
| | - Antonio Gascó
- Department of Forest and Environmental Engineering and Management, Universidad Politécnica de Madrid, Escuela Técnica Superior de Ingeniería de Montes, Forestal y del Medio Natural, José Antonio Novais 10, 28040 Madrid, Spain
| | - Sara Mesa-Medina
- Environmental Catalysis Engineering Group, Instituto de Catálisis y Petroleoquímica, ICP-CSIC, Marie Curie 2, 28049 Madrid, Spain
| | - Marisol Faraldos
- Environmental Catalysis Engineering Group, Instituto de Catálisis y Petroleoquímica, ICP-CSIC, Marie Curie 2, 28049 Madrid, Spain
| | - Daphne Hermosilla
- Department of Forest and Environmental Engineering and Management, Universidad Politécnica de Madrid, Escuela Técnica Superior de Ingeniería de Montes, Forestal y del Medio Natural, José Antonio Novais 10, 28040 Madrid, Spain
- Department of Agricultural and Forest Engineering, University of Valladolid, Escuela de Ingenieria de la Industria Forestal, Agronómica y de la Bioenergía, Campus Duques de Soria, 42005 Soria, Spain
| | - Ana Bahamonde
- Environmental Catalysis Engineering Group, Instituto de Catálisis y Petroleoquímica, ICP-CSIC, Marie Curie 2, 28049 Madrid, Spain
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32
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Roberts G, Raihani N, Bshary R, Manrique HM, Farina A, Samu F, Barclay P. The benefits of being seen to help others: indirect reciprocity and reputation-based partner choice. Philos Trans R Soc Lond B Biol Sci 2021; 376:20200290. [PMID: 34601903 PMCID: PMC8487748 DOI: 10.1098/rstb.2020.0290] [Citation(s) in RCA: 27] [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] [Subscribe] [Scholar Register] [Accepted: 08/13/2021] [Indexed: 01/06/2023] Open
Abstract
When one individual helps another, it benefits the recipient and may also gain a reputation for being cooperative. This may induce others to favour the helper in subsequent interactions, so investing in being seen to help others may be adaptive. The best-known mechanism for this is indirect reciprocity (IR), in which the profit comes from an observer who pays a cost to benefit the original helper. IR has attracted considerable theoretical and empirical interest, but it is not the only way in which cooperative reputations can bring benefits. Signalling theory proposes that paying a cost to benefit others is a strategic investment which benefits the signaller through changing receiver behaviour, in particular by being more likely to choose the signaller as a partner. This reputation-based partner choice can result in competitive helping whereby those who help are favoured as partners. These theories have been confused in the literature. We therefore set out the assumptions, the mechanisms and the predictions of each theory for how developing a cooperative reputation can be adaptive. The benefits of being seen to be cooperative may have been a major driver of sociality, especially in humans. This article is part of the theme issue 'The language of cooperation: reputation and honest signalling'.
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Affiliation(s)
| | - Nichola Raihani
- Department of Experimental Psychology, University College London, London WC1H 0AP, UK
| | - Redouan Bshary
- Department of Biology, University of Neuchâtel, Neuchâtel 2009, Switzerland
| | - Héctor M. Manrique
- Department of Psicología y Sociología, Universidad de Zaragoza, Teruel, Teruel 44003, Spain
| | - Andrea Farina
- Leiden University, Leiden, Zuid-Holland, The Netherlands
| | - Flóra Samu
- Linköping University, Linköping, Östergötland, Sweden
| | - Pat Barclay
- Department of Psychology, University of Guelph, Guelph, Ontario, Canada N1G 2W1
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Lanka P, Francis KJ, Kruit H, Farina A, Cubeddu R, Sekar SKV, Manohar S, Pifferi A. Author Correction: Optical signatures of radiofrequency ablation in biological tissues. Sci Rep 2021; 11:17761. [PMID: 34471160 PMCID: PMC8410905 DOI: 10.1038/s41598-021-96881-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Affiliation(s)
- Pranav Lanka
- Department of Physics, Politecnico di Milano, Milan, Italy
| | - Kalloor Joseph Francis
- Multi‑Modality Medical Imaging Group, University of Twente, Enschede, The Netherlands.,Biomedical Photonic Imaging Group Technical Medical Centre, University of Twente, Enschede, The Netherlands
| | - Hindrik Kruit
- Multi‑Modality Medical Imaging Group, University of Twente, Enschede, The Netherlands
| | - Andrea Farina
- Institute of Photonics and Nanotechnologies, National Research Council, Milan, Italy.
| | | | | | - Srirang Manohar
- Multi‑Modality Medical Imaging Group, University of Twente, Enschede, The Netherlands
| | - Antonio Pifferi
- Department of Physics, Politecnico di Milano, Milan, Italy.,Institute of Photonics and Nanotechnologies, National Research Council, Milan, Italy
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Soldevila F, Lenz AJM, Ghezzi A, Farina A, D'Andrea C, Tajahuerce E. Giga-voxel multidimensional fluorescence imaging combining single-pixel detection and data fusion. Opt Lett 2021; 46:4312-4315. [PMID: 34470002 DOI: 10.1364/ol.434127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Accepted: 07/29/2021] [Indexed: 06/13/2023]
Abstract
Time-resolved fluorescence imaging is a key tool in biomedical applications, as it allows to non-invasively obtain functional and structural information. However, the big amount of collected data introduces challenges in both acquisition speed and processing needs. Here, we introduce a novel technique that allows to acquire a giga-voxel 4D hypercube in a fast manner while measuring only 0.03% of the dataset. The system combines two single-pixel cameras and a conventional 2D array detector working in parallel. Data fusion techniques are introduced to combine the individual 2D and 3D projections acquired by each sensor in the final high-resolution 4D hypercube, which can be used to identify different fluorophore species by their spectral and temporal signatures.
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35
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Di Sciacca G, Di Sieno L, Farina A, Lanka P, Venturini E, Panizza P, Dalla Mora A, Pifferi A, Taroni P, Arridge SR. Enhanced diffuse optical tomographic reconstruction using concurrent ultrasound information. Philos Trans A Math Phys Eng Sci 2021; 379:20200195. [PMID: 34218668 PMCID: PMC8255947 DOI: 10.1098/rsta.2020.0195] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 02/25/2021] [Indexed: 05/26/2023]
Abstract
Multimodal imaging is an active branch of research as it has the potential to improve common medical imaging techniques. Diffuse optical tomography (DOT) is an example of a low resolution, functional imaging modality that typically has very low resolution due to the ill-posedness of its underlying inverse problem. Combining the functional information of DOT with a high resolution structural imaging modality has been studied widely. In particular, the combination of DOT with ultrasound (US) could serve as a useful tool for clinicians for the formulation of accurate diagnosis of breast lesions. In this paper, we propose a novel method for US-guided DOT reconstruction using a portable time-domain measurement system. B-mode US imaging is used to retrieve morphological information on the probed tissues by means of a semi-automatical segmentation procedure based on active contour fitting. A two-dimensional to three-dimensional extrapolation procedure, based on the concept of distance transform, is then applied to generate a three-dimensional edge-weighting prior for the regularization of DOT. The reconstruction procedure has been tested on experimental data obtained on specifically designed dual-modality silicon phantoms. Results show a substantial quantification improvement upon the application of the implemented technique. This article is part of the theme issue 'Synergistic tomographic image reconstruction: part 2'.
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Affiliation(s)
- G. Di Sciacca
- Department of Computer Science, University College London, London WC1E 6BT, UK
| | - L. Di Sieno
- Dipartimento di Fisica, Politecnico di Milano, Piazza Leonardo da Vinci, 32 20133 Milano, Italy
| | - A. Farina
- Consiglio Nazionale delle Ricerche, Istituto di Fotonica e Nanotecnologie, Piazza Leonardo da Vinci, 32 20133 Milano, Italy
| | - P. Lanka
- Dipartimento di Fisica, Politecnico di Milano, Piazza Leonardo da Vinci, 32 20133 Milano, Italy
| | - E. Venturini
- Breast Imaging Unit, San Raffaele Scientific Hospital, Milano, Italy
| | - P. Panizza
- Breast Imaging Unit, San Raffaele Scientific Hospital, Milano, Italy
| | - A. Dalla Mora
- Dipartimento di Fisica, Politecnico di Milano, Piazza Leonardo da Vinci, 32 20133 Milano, Italy
| | - A. Pifferi
- Dipartimento di Fisica, Politecnico di Milano, Piazza Leonardo da Vinci, 32 20133 Milano, Italy
| | - P. Taroni
- Dipartimento di Fisica, Politecnico di Milano, Piazza Leonardo da Vinci, 32 20133 Milano, Italy
| | - S. R. Arridge
- Department of Computer Science, University College London, London WC1E 6BT, UK
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Hussain SS, Majumdar R, Moore GM, Narang H, Buechelmaier E, Bazil MJ, Ravindran PT, Leeman J, Li Y, Jalan M, Anderson KS, Farina A, Soni R, Mohibullah N, Hamzic E, Rong-Mullins X, Sifuentes C, Damerla RR, Viale A, Powell SN, Higginson D. Measuring nonhomologous end-joining, homologous recombination and alternative end-joining simultaneously at an endogenous locus in any transfectable human cell. Nucleic Acids Res 2021; 49:e74. [PMID: 33877327 PMCID: PMC8287935 DOI: 10.1093/nar/gkab262] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Revised: 03/23/2021] [Accepted: 04/01/2021] [Indexed: 02/06/2023] Open
Abstract
Double strand break (DSB) repair primarily occurs through 3 pathways: non-homologous end-joining (NHEJ), alternative end-joining (Alt-EJ), and homologous recombination (HR). Typical methods to measure pathway usage include integrated cassette reporter assays or visualization of DNA damage induced nuclear foci. It is now well understood that repair of Cas9-induced breaks also involves NHEJ, Alt-EJ, and HR pathways, providing a new format to measure pathway usage. Here, we have developed a simple Cas9-based system with validated repair outcomes that accurately represent each pathway and then converted it to a droplet digital PCR (ddPCR) readout, thus obviating the need for Next Generation Sequencing and bioinformatic analysis with the goal to make Cas9-based system accessible to more laboratories. The assay system has reproduced several important insights. First, absence of the key Alt-EJ factor Pol θ only abrogates ∼50% of total Alt-EJ. Second, single-strand templated repair (SSTR) requires BRCA1 and MRE11 activity, but not BRCA2, establishing that SSTR commonly used in genome editing is not conventional HR. Third, BRCA1 promotes Alt-EJ usage at two-ended DSBs in contrast to BRCA2. This assay can be used in any system, which permits Cas9 delivery and, importantly, allows rapid genotype-to-phenotype correlation in isogenic cell line pairs.
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Affiliation(s)
- Suleman S Hussain
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Rahul Majumdar
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Grace M Moore
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Himanshi Narang
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Erika S Buechelmaier
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
- Weill Cornell Medicine, Graduate School of Medical Sciences, New York, NY 10065, USA
| | - Maximilian J Bazil
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | | | - Jonathan E Leeman
- Department of Radiation Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA 02189, USA
| | - Yi Li
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Manisha Jalan
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Kyrie S Anderson
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Andrea Farina
- Integrated Genomics Operations, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Rekha Soni
- Integrated Genomics Operations, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Neeman Mohibullah
- Integrated Genomics Operations, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Edin Hamzic
- Biocomputix, Sarajevo, 71000, Bosnia and Herzegovina
| | - Xiaoqing Rong-Mullins
- Department of Biostatistics, The Ohio State University College of Public Health, Columbus, OH 43210, USA
| | | | - Rama R Damerla
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Agnes Viale
- Integrated Genomics Operations, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Simon N Powell
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Daniel S Higginson
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
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Duarte MHL, Sousa-Lima RS, Young RJ, Vasconcelos MF, Bittencourt E, Scarpelli MDA, Farina A, Pieretti N. Changes on soundscapes reveal impacts of wildfires in the fauna of a Brazilian savanna. Sci Total Environ 2021; 769:144988. [PMID: 33486180 DOI: 10.1016/j.scitotenv.2021.144988] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Revised: 12/29/2020] [Accepted: 12/30/2020] [Indexed: 06/12/2023]
Abstract
Wildfire is a natural process in Brazilian savannas, but human activities alter fire regimes and threaten biodiversity. In this study, we used an ecoacoustics approach to assess fauna responses and recovery after wildfire in a Brazilian savanna. Six passive acoustic monitoring devices were used to record soundscapes before and after a wildfire a at burned and non-burned sites for one year and one month (September 2012 to September 2013). Power Spectral Density and the Acoustic Complexity Index were used to track biophony. Before the fire, the two sites had similar biophonic patterns (PSD: T = 1136, Z = 1.52, P = 0.12; ACI: T = 1117, Z = 1.10, P = 0.26) and soniferous species richness (Site 1 = 52 and Site 2 = 49). However, in the first two sessions of recordings after the fire, biophony became higher at the burned site during the day (PSD: T = 211 and 233; Z = 4.13 and 6.41; ACI: T = 120 and 469, Z = 5.14 and 7.07; all P < 0.00). During the night, biophony was usually higher at the non-burned site until May 2013 (PSD: T = 0 to 453; Z = 3.30 to 5.90; ACI: T = 333 to 491, Z = 3.80 to 4.93; all P < 0.00). Biophony became similar (P = 0.17 to 0.38) at the two sites or higher (P = 0.00 to 0.01) at the burned site from July to September 2013 (PSD: T = 55 to 1167; Z = 1.35 to 6.89; ACI: T = 719 to 1365, Z = 0.87 to 3.04). After the fire, a reduction of soniferous species at the burned site was observed for insects and bats. Both biophonic activity and soniferous species showed a tendency to recover one year after the fire, but there were still less species in September 2013 (non-burned = 43 and burned = 37) when compared to September 2012 at both sites (Site 1 = 52 and Site 2 = 49). Our results showed that changes in the natural regimes of fire can negatively impact the biodiversity and reinforce the need for monitoring protocols and inspection of wildfires.
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Affiliation(s)
- M H L Duarte
- Conservation, Ecology and Animal Behaviour Group - Laboratory of Bioacoustics and Ecoacoustics, Post-Graduate Program of Vertebrate Biology, Pontifical Catholic University of Minas Gerais, Rua Dom José Gaspar, 290, Bairro Coração Eucarístico, Belo Horizonte, Minas Gerais 30535-901, Brazil; Museum of Natural Sciences, Pontifical Catholic University of Minas Gerais, Rua Dom José Gaspar, 290, Bairro Coração Eucarístico, Belo Horizonte, Minas Gerais 30535-901, Brazil.
| | - R S Sousa-Lima
- Laboratory of Bioacoustics (LaB) Department of Physiology & Behaviour and EcoAcoustic Research Hub (EAR), Federal University of Rio Grande do Norte, Avenida Senador Salgado Filho, 3000, Bairro Lagoa Nova, Natal, RN 59078-970, Brazil.
| | - R J Young
- School of Science, Engineering and Environment, Peel Building, University of Salford Manchester, Salford M5 4WT, UK.
| | - M F Vasconcelos
- Museum of Natural Sciences, Pontifical Catholic University of Minas Gerais, Rua Dom José Gaspar, 290, Bairro Coração Eucarístico, Belo Horizonte, Minas Gerais 30535-901, Brazil.
| | - E Bittencourt
- Museum of Natural Sciences, Pontifical Catholic University of Minas Gerais, Rua Dom José Gaspar, 290, Bairro Coração Eucarístico, Belo Horizonte, Minas Gerais 30535-901, Brazil.
| | - M D A Scarpelli
- Ecosounds Research Group, Queensland University of Technology, Brisbane, Australia.
| | - A Farina
- Department of Basic Sciences and Foundations, University of Urbino, Campus Scientifico "Enrico Mattei", Urbino, Italy.
| | - N Pieretti
- Department of Life and Environmental Sciences, Polytechnic University of Marche, Ancona, Italy.
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Cavoretto PI, Farina A, Miglio R, Zamagni G, Girardelli S, Vanni VS, Morano D, Spinillo S, Sartor F, Candiani M. Prospective longitudinal cohort study of uterine arteries Doppler in singleton pregnancies obtained by IVF/ICSI with oocyte donation or natural conception. Hum Reprod 2021; 35:2428-2438. [PMID: 33099621 DOI: 10.1093/humrep/deaa235] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [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: 05/31/2020] [Revised: 07/18/2020] [Indexed: 12/28/2022] Open
Abstract
STUDY QUESTION Do uterine arteries Doppler studies show different pulsatility index (UtA-PI) measurements in IVF/ICSI pregnancies with oocyte donation (OD) as compared to natural conceptions? SUMMARY ANSWER In IVF/ICSI pregnancies with OD, UtA-PI is reduced by an average of about 40% as compared to pregnancies with natural conception. WHAT IS KNOWN ALREADY OD pregnancies present worse pregnancy outcomes as compared to natural conception, particularly for increased incidence of pre-eclampsia (PE). Recent evidence shows that IVF/ICSI pregnancies with frozen blastocyst transfer also present higher prevalence of PE and 15% lower UtA-PI as compared to pregnancies after fresh blastocyst transfers. STUDY DESIGN, SIZE, DURATION Prospective, longitudinal matched cohort study performed in the Fetal Medicine and Obstetric Departments of San Raffaele Hospital in Milan, between 2013 and 2018. The analysis is based on 584 Doppler observations collected from 296 women with different method of conception (OD n = 122; natural conception n = 174). PARTICIPANTS/MATERIALS, SETTING, METHODS IVF/ICSI viable singleton pregnancies with OD and natural conception control pregnancies matched for BMI and smoking, performing repeated UtA-PI measurements at 11-34 weeks. Miscarriages, abnormalities, twins, significant maternal diseases and other types of ARTs were excluded. Log mean left-right UtA-PI was used for analysis with linear mixed model (LMM) and correction for significant confounders. Pregnancy outcome was also analyzed. MAIN RESULTS AND THE ROLE OF CHANCE Participants after OD were older and more frequently nulliparous (mean age: OD 43.4, 95% CI from 42.3 to 44.6; natural conception 35.1, 95% CI from 34.5 to 35.7; P-value < 0.001; nulliparous: OD 96.6%; natural conception 56.2%; P-value < 0.001). Mean pulsatility index was lower in OD (UtA-PI: natural conception 1.22; 95% CI from 1.11 to 1.28; OD 1.04; 95% CI from 0.96 to 1.12; P-value < 0.001). A significant effect of parity, gestational age (GA) modeled with a cubic polynomial and BMI was described in the LMM. The mean Log UtA-PI was on average 37% lower in OD as compared to natural conception pregnancies at LMM (P-value < 0.001). We also found a significant interaction between longitudinal UtA-PI Doppler and GA. Therefore, at 11 weeks' gestation the Log UtA-PI was 42% lower and, at 34 weeks, the differences reduced to 32%. GA at delivery and birth weight were statistically lower in OD group; however, birthweight centile was not statistically different. Preeclampsia was 11-fold more common in the OD group (0.6% and 6.6%, P-value = 0.003). No other significant difference in pregnancy outcome was shown in the study groups (gestational diabetes mellitus, small or large for GA). LIMITATIONS, REASONS FOR CAUTION It was not possible to properly match for maternal age and to blind the assessment given the major differences between cohorts; however, we did not find significant within-groups effects related to maternal age. Future research is needed to reassess outcomes and correct them for maternal characteristics (e.g. cardiovascular function). WIDER IMPLICATIONS OF THE FINDINGS This finding reproduces our previous discovery of lower UtA-PI in frozen as compared to fresh blastocyst transfer. The vast majority of OD is obtained by the use of cryopreservation. We speculate that increased uterine perfusion may be the physiological response to compensate dysfunctions both in the mother and in the placenta. STUDY FUNDING/COMPETING INTEREST(S) This is a non-funded study. The authors do not declare competing interest. TRIAL REGISTRATION NUMBER N/A.
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Affiliation(s)
- P I Cavoretto
- Obstetrics and Gynecology Department, IRCCS San Raffaele Hospital, Vita-Salute University, Milan, Italy
| | - A Farina
- Division of Obstetrics and Prenatal Medicine, Department of Medicine and Surgery (DIMEC) Sant'Orsola-Malpighi Hospital, University of Bologna, Bologna, Italy
| | - R Miglio
- Department of Statistical Sciences, University of Bologna, Bologna, Italy
| | - G Zamagni
- Department of Statistical Sciences, University of Bologna, Bologna, Italy
| | - S Girardelli
- Obstetrics and Gynecology Department, IRCCS San Raffaele Hospital, Vita-Salute University, Milan, Italy
| | - V S Vanni
- Obstetrics and Gynecology Department, IRCCS San Raffaele Hospital, Vita-Salute University, Milan, Italy
| | - D Morano
- Department of Obstetrics and Gynecology, Sant'Anna University Hospital, Cona, Ferrara, Italy
| | - S Spinillo
- Obstetrics and Gynecology Department, IRCCS San Raffaele Hospital, Vita-Salute University, Milan, Italy
| | - F Sartor
- Obstetrics and Gynecology Department, IRCCS San Raffaele Hospital, Vita-Salute University, Milan, Italy
| | - M Candiani
- Obstetrics and Gynecology Department, IRCCS San Raffaele Hospital, Vita-Salute University, Milan, Italy
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Castellucci P, Savoia F, Farina A, Lima GM, Patrizi A, Baraldi C, Zagni F, Vichi S, Pettinato C, Morganti AG, Strigari L, Fanti S. Correction to: High dose brachytherapy with non sealed 188Re (rhenium) resin in patients with non-melanoma skin cancers (NMSCs): single center preliminary results. Eur J Nucl Med Mol Imaging 2021; 48:1706. [PMID: 33871669 DOI: 10.1007/s00259-021-05363-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Paolo Castellucci
- Nuclear Medicine, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Via Massarenti 9, 40138, Bologna, Italy.
| | - F Savoia
- Dermatology, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Via Massarenti 9, 40138, Bologna, Italy
| | - A Farina
- Nuclear Medicine, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Via Massarenti 9, 40138, Bologna, Italy
| | - G M Lima
- Nuclear Medicine, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Via Massarenti 9, 40138, Bologna, Italy
| | - A Patrizi
- Dermatology, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Via Massarenti 9, 40138, Bologna, Italy
| | - C Baraldi
- Dermatology, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Via Massarenti 9, 40138, Bologna, Italy
| | - F Zagni
- Medical Physics, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Via Massarenti 9, 40138, Bologna, Italy
| | - S Vichi
- Department of Industrial Engineering, Azienda Ospedaliero-Universitaria di Bologna, Via Massarenti 9, 40138, Bologna, Italy
| | - C Pettinato
- Medical Physics, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Via Massarenti 9, 40138, Bologna, Italy.,Medical Physics Unit, Fondazione IRCCS Ca Granda Ospedale Maggiore Milano, Milan, Italy
| | - A G Morganti
- Radiation Oncology, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Via Massarenti 9, 40138, Bologna, Italy
| | - L Strigari
- Medical Physics, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Via Massarenti 9, 40138, Bologna, Italy
| | - S Fanti
- Nuclear Medicine, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Via Massarenti 9, 40138, Bologna, Italy
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40
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Lanka P, Francis KJ, Kruit H, Farina A, Cubeddu R, Sekar SKV, Manohar S, Pifferi A. Optical signatures of radiofrequency ablation in biological tissues. Sci Rep 2021; 11:6579. [PMID: 33753778 PMCID: PMC7985316 DOI: 10.1038/s41598-021-85653-0] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Accepted: 03/02/2021] [Indexed: 12/14/2022] Open
Abstract
Accurate monitoring of treatment is crucial in minimally-invasive radiofrequency ablation in oncology and cardiovascular disease. We investigated alterations in optical properties of ex-vivo bovine tissues of the liver, heart, muscle, and brain, undergoing the treatment. Time-domain diffuse optical spectroscopy was used, which enabled us to disentangle and quantify absorption and reduced scattering spectra. In addition to the well-known global (1) decrease in absorption, and (2) increase in reduced scattering, we uncovered new features based on sensitive detection of spectral changes. These absorption spectrum features are: (3) emergence of a peak around 840 nm, (4) redshift of the 760 nm deoxyhemoglobin peak, and (5) blueshift of the 970 nm water peak. Treatment temperatures above 100 °C led to (6) increased absorption at shorter wavelengths, and (7) further decrease in reduced scattering. This optical behavior provides new insights into tissue response to thermal treatment and sets the stage for optical monitoring of radiofrequency ablation.
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Affiliation(s)
- Pranav Lanka
- Department of Physics, Politecnico di Milano, Milan, Italy
| | - Kalloor Joseph Francis
- Multi-Modality Medical Imaging Group, University of Twente, Enschede, The Netherlands.,Biomedical Photonic Imaging Group Technical Medical Centre, University of Twente, Enschede, The Netherlands
| | - Hindrik Kruit
- Multi-Modality Medical Imaging Group, University of Twente, Enschede, The Netherlands
| | - Andrea Farina
- Institute of Photonics and Nanotechnologies, National Research Council, Milan, Italy.
| | | | | | - Srirang Manohar
- Multi-Modality Medical Imaging Group, University of Twente, Enschede, The Netherlands
| | - Antonio Pifferi
- Department of Physics, Politecnico di Milano, Milan, Italy.,Institute of Photonics and Nanotechnologies, National Research Council, Milan, Italy
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Farina A, Labriola R, Ialongo C, Suppa M, Viggiani V, Lucarelli M, Anastasi E, Angeloni A. Transient plasma cell dyscrasia in COVID-19 patients linked to IL-6 triggering. Microbes Infect 2021; 23:104808. [PMID: 33753206 PMCID: PMC7979272 DOI: 10.1016/j.micinf.2021.104808] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [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: 02/02/2021] [Revised: 03/05/2021] [Accepted: 03/07/2021] [Indexed: 12/13/2022]
Abstract
An unusual clonal gammopathy was reported in COVID-19 patient but whether this anomaly is related or not to the disease has not yet been clarified. To this aim, we selected a cohort of 35 COVID-19 patients swab positive and investigated serological levels of IL-6, immune response to major viral antigens and electrophoretic profile. Elevated levels of IL-6 were accompanied by a significative humoral response to viral Spike protein, revealing an altered electrophoretic profile in the gamma region. We can conclude that elevated levels of IL-6 triggers humoral response inducing a transient plasma cell dyscrasia in severe COVID-19 patients.
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Affiliation(s)
- A Farina
- Department of Experimental Medicine, University of Rome "La Sapienza", 00161, Roma, Lazio, Italy
| | - R Labriola
- Department of Experimental Medicine, University of Rome "La Sapienza", 00161, Roma, Lazio, Italy
| | - C Ialongo
- Department of Experimental Medicine, University of Rome "La Sapienza", 00161, Roma, Lazio, Italy
| | - M Suppa
- Department of Emergency Medicine, University of Rome "La Sapienza", 00161, Roma, Lazio, Italy
| | - V Viggiani
- Department of Molecular Medicine, University of Rome "La Sapienza", 00161, Roma, Lazio, Italy
| | - M Lucarelli
- Department of Experimental Medicine, University of Rome "La Sapienza", 00161, Roma, Lazio, Italy
| | - E Anastasi
- Department of Experimental Medicine, University of Rome "La Sapienza", 00161, Roma, Lazio, Italy.
| | - A Angeloni
- Department of Experimental Medicine, University of Rome "La Sapienza", 00161, Roma, Lazio, Italy
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Ghezzi A, Farina A, Bassi A, Valentini G, Labanca I, Acconcia G, Rech I, D'Andrea C. Multispectral compressive fluorescence lifetime imaging microscopy with a SPAD array detector. Opt Lett 2021; 46:1353-1356. [PMID: 33720185 DOI: 10.1364/ol.419381] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Accepted: 02/06/2021] [Indexed: 05/22/2023]
Abstract
Multispectral/hyperspectral fluorescence lifetime imaging microscopy (λFLIM) is a promising tool for studying functional and structural biological processes. The rich information content provided by a multidimensional dataset is often in contrast with the acquisition speed. In this work, we develop and experimentally demonstrate a wide-field λFLIM setup, based on a novel time-resolved 18×1 single-photon avalanche diode array detector working in a single-pixel camera scheme, which parallelizes the spectral detection, reducing measurement time. The proposed system, which implements a single-pixel camera with a compressive sensing scheme, represents an optimal microscopy framework towards the design of λFLIM setups.
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Mantero V, Rifino N, Costantino G, Farina A, Pozzetti U, Sciacco M, Ripolone M, Bianchi G, Salmaggi A, Rigamonti A. Non-alcoholic beriberi, Wernicke encephalopathy and long-term eating disorder: case report and a mini-review. Eat Weight Disord 2021; 26:729-732. [PMID: 32130681 DOI: 10.1007/s40519-020-00880-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Accepted: 02/19/2020] [Indexed: 01/19/2023] Open
Abstract
INTRODUCTION Nowadays, reports of beriberi are rare in developed countries. Wernicke encephalopathy may be present in about 25% of patients with beriberi. CASE REPORT We report the case of a woman with history of depression and chronic eating disorder, who complained Wernicke encephalopathy and beriberi. Sural nerve and muscular biopsy were performed, showing severe axonal neuropathy. Thiamine supplementation was started with rapid improvement of the pulmonary and cardiac affections; improvement of peripheral neuropathy was incomplete. CONCLUSIONS Thiamine deficiency can be misdiagnosed. Beriberi is an important cause of acute flaccid paralysis; hence, clinicians should consider this diagnosis and prompt start thiamine treatment to avoid permanent neurological sequelae.
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Affiliation(s)
- Vittorio Mantero
- Neurology Unit, "A. Manzoni" Hospital-ASST Lecco, Via dell'Eremo 9/11, 23900, Lecco, Italy.
| | - Nicola Rifino
- Neurology Unit, "A. Manzoni" Hospital-ASST Lecco, Via dell'Eremo 9/11, 23900, Lecco, Italy
| | - Gisella Costantino
- Neurology Unit, "A. Manzoni" Hospital-ASST Lecco, Via dell'Eremo 9/11, 23900, Lecco, Italy
| | - Andrea Farina
- Cardiology Unit, "A. Manzoni" Hospital-ASST Lecco, Lecco, Italy
| | - Ugo Pozzetti
- Department of Internal Medicine, "A. Manzoni" Hospital-ASST Lecco, Lecco, Italy
| | - Monica Sciacco
- Neuromuscular and Rare Diseases Unit, Department of Neuroscience, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Michela Ripolone
- Neuromuscular and Rare Diseases Unit, Department of Neuroscience, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Graziella Bianchi
- Neurology Unit, "A. Manzoni" Hospital-ASST Lecco, Via dell'Eremo 9/11, 23900, Lecco, Italy
| | - Andrea Salmaggi
- Neurology Unit, "A. Manzoni" Hospital-ASST Lecco, Via dell'Eremo 9/11, 23900, Lecco, Italy
| | - Andrea Rigamonti
- Neurology Unit, "A. Manzoni" Hospital-ASST Lecco, Via dell'Eremo 9/11, 23900, Lecco, Italy
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Castellucci P, Savoia F, Farina A, Lima GM, Patrizi A, Baraldi C, Zagni F, Vichi S, Pettinato C, Morganti AG, Strigari L, Fanti S. High dose brachytherapy with non sealed 188Re (rhenium) resin in patients with non-melanoma skin cancers (NMSCs): single center preliminary results. Eur J Nucl Med Mol Imaging 2020; 48:1511-1521. [PMID: 33140131 PMCID: PMC8113182 DOI: 10.1007/s00259-020-05088-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Accepted: 10/20/2020] [Indexed: 12/02/2022]
Abstract
Background and aim High dose brachytherapy using a non sealed 188Re-resin (Rhenium-SCT®, Oncobeta® GmbH, Munich, Germany) is a treatment option for non-melanoma skin cancer (NMSC). The aim of this prospective study was to assess the efficacy and the safety of a single application of Rhenium-SCT® in NMSC. Materials and method Fifty consecutive patients (15F, 35 M, range of age 56–97, mean 81) showing 60 histologically proven NMSCs were enrolled and treated with the Rhenium-SCT® between October 2017 and January 2020. Lesions were located on the face, ears, nose or scalp (n = 46), extremities (n = 9), and trunk (n = 5). Mean surface areas were 7.0 cm2 (1–36 cm2), mean thickness invasion was 1.1 mm (0.2–2.5 mm), and mean treatment time was 79 min (21–85 min). Superficial, mean, and target absorbed dose were 185 Gy, 63 Gy, and 31 Gy respectively. Patients were followed-up at 14, 30, 60, 90, and 180 days posttreatment, when dermoscopy and biopsy were performed. Mean follow-up was 20 months (range 3–33 months). Early skin toxicity was classified according to Common Terminology Criteria for Adverse Events (CTCAE). Cosmetic results were evaluated after at least 12 months according to Radiation Therapy Oncology Group (RTOG) scale. Results At 6 months follow-up, histology and dermoscopy were available for 54/60 lesions, of which 53/54 (98%) completely responded. One patient showed a 1-cm2 residual lesion that was subsequently surgically excised. Twelve months after treatment, 41/41 evaluable lesions were free from relapse. Twenty four months after treatment, 23/24 evaluable lesions were free of relapse. In 56/60 lesions early side effects, resolving within 32 days were classified as grades 1–2 (CTCAE). In the remaining 4/60 lesions, these findings were classified as grade 3 (CTCAE) and lasted up to 8–12 weeks but all resolved within 90 days. After at least 12 months (12–33 months), cosmetic results were excellent (30 lesions) or good (11 lesions). Conclusion High dose brachytherapy with Rhenium-SCT® is a noninvasive, reasonably safe, easy to perform, effective and well-tolerated approach to treat NMSCs, and it seems to be a useful alternative option when surgery or radiation therapy are difficult to perform or not recommended. In our population 98% of the treated lesions resolved completely after a single application and only one relapsed after 2 years. Larger patients’ population and longer follow-up are needed to confirm these preliminary data and to find the optimal dose to administer in order to achieve complete response without significant side effects.
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Affiliation(s)
- Paolo Castellucci
- Nuclear Medicine, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Via Massarenti 9, 40138, Bologna, Italy.
| | - F Savoia
- Dermatology, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Via Massarenti 9, 40138, Bologna, Italy
| | - A Farina
- Nuclear Medicine, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Via Massarenti 9, 40138, Bologna, Italy
| | - G M Lima
- Nuclear Medicine, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Via Massarenti 9, 40138, Bologna, Italy
| | - A Patrizi
- Dermatology, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Via Massarenti 9, 40138, Bologna, Italy
| | - C Baraldi
- Dermatology, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Via Massarenti 9, 40138, Bologna, Italy
| | - F Zagni
- Medical Physics, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Via Massarenti 9, 40138, Bologna, Italy
| | - S Vichi
- Department of Industrial Engineering, Azienda Ospedaliero-Universitaria di Bologna, Via Massarenti 9, 40138, Bologna, Italy
| | - C Pettinato
- Medical Physics, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Via Massarenti 9, 40138, Bologna, Italy.,Medical Physics Unit, Fondazione IRCCS Ca Granda Ospedale Maggiore Milano, Milan, Italy
| | - A G Morganti
- Radiation Oncology, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Via Massarenti 9, 40138, Bologna, Italy
| | - L Strigari
- Medical Physics, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Via Massarenti 9, 40138, Bologna, Italy
| | - S Fanti
- Nuclear Medicine, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Via Massarenti 9, 40138, Bologna, Italy
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Cavoretto PI, Farina A, Gaeta G, Sigismondi C, Spinillo S, Casiero D, Pozzoni M, Vigano P, Papaleo E, Candiani M. Uterine artery Doppler in singleton pregnancies conceived after in-vitro fertilization or intracytoplasmic sperm injection with fresh vs frozen blastocyst transfer: longitudinal cohort study. Ultrasound Obstet Gynecol 2020; 56:603-610. [PMID: 31909549 DOI: 10.1002/uog.21969] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2019] [Revised: 12/18/2019] [Accepted: 12/20/2019] [Indexed: 06/10/2023]
Abstract
OBJECTIVE Pregnancies conceived by frozen blastocyst transfer (FBT) have higher gestational age and weight at birth as compared to those derived by fresh blastocyst transfer. The aim of this study was to evaluate uterine artery pulsatility index (UtA-PI) in pregnancies conceived by in-vitro fertilization (IVF) or intracytoplasmic sperm injection (ICSI) techniques using fresh vs cryopreserved blastocysts. METHODS This was a prospective longitudinal study of viable singleton IVF/ICSI pregnancies conceived after FBT or fresh blastocyst transfer, that underwent serial ultrasound assessment at San Raffaele Hospital, Milan, Italy at 7-37 gestational weeks. We excluded pregnancies conceived using other assisted reproductive techniques such as egg donation, twin gestation, pregnancy with abnormality and those resulting in miscarriage. Pregnant women underwent ultrasound assessment at 7-10, 11-14, 18-25 and 26-37 weeks' gestation. Mean UtA-PI was measured using Doppler ultrasound according to The Fetal Medicine Foundation criteria. Pregnancy outcomes were recorded. The primary outcome was mean UtA-PI measurement and secondary outcomes were gestational age at birth, birth weight and fetal and maternal complications, including small-for-gestational age (SGA), pre-eclampsia and large-for-gestational age. UtA-PI values were made Gaussian after log10 transformation. Analysis of repeated measures using a multilevel linear mixed model (fixed effects and random effects) was performed. The possible effect of other covariates on UtA-PI Doppler values, including body mass index, SGA and pre-eclampsia, was also evaluated. RESULTS A total of 367 IVF/ICSI cycles, comprising 164 with fresh blastocyst transfer and 203 with FBT, were included and a total of 625 observations (median, 2.5 (range, 1-4)) were collected and analyzed. The FBT group had on average 14% lower UtA-PI compared with the fresh-blastocyst-transfer group. In pregnancies with SGA fetuses, UtA-PI was 18% higher compared to pregnancies without, irrespective of the study group. Pregnancies that underwent fresh blastocyst transfer had significantly lower birth-weight centile (43.4 ± 23.3 vs 50.0 ± 23.1; P = 0.007) and a higher rate of SGA (7.9% vs 2.0%; P = 0.008) compared to those that underwent FBT. No significant differences were found between the two groups with respect to gestational age at birth and rates of preterm birth, pre-eclampsia, gestational diabetes mellitus and large-for-gestational age. CONCLUSION UtA-PI and the proportion of SGA are lower in IVF/ICSI pregnancies conceived after FBT as compared to fresh blastocyst transfer. Copyright © 2020 ISUOG. Published by John Wiley & Sons Ltd.
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Affiliation(s)
- P I Cavoretto
- Department of Obstetrics and Gynecology, IRCCS San Raffaele Hospital, University Vita-Salute, Milan, Italy
| | - A Farina
- Division of Obstetrics and Prenatal Medicine, Department of Medicine and Surgery (DIMEC), Sant'Orsola-Malpighi Hospital, University of Bologna, Bologna, Italy
| | - G Gaeta
- Department of Obstetrics and Gynecology, IRCCS San Raffaele Hospital, University Vita-Salute, Milan, Italy
| | - C Sigismondi
- Department of Obstetrics and Gynecology, IRCCS San Raffaele Hospital, University Vita-Salute, Milan, Italy
| | - S Spinillo
- Department of Obstetrics and Gynecology, IRCCS San Raffaele Hospital, University Vita-Salute, Milan, Italy
| | - D Casiero
- Department of Obstetrics and Gynecology, IRCCS San Raffaele Hospital, University Vita-Salute, Milan, Italy
| | - M Pozzoni
- Department of Obstetrics and Gynecology, IRCCS San Raffaele Hospital, University Vita-Salute, Milan, Italy
| | - P Vigano
- Department of Obstetrics and Gynecology, IRCCS San Raffaele Hospital, University Vita-Salute, Milan, Italy
| | - E Papaleo
- Department of Obstetrics and Gynecology, IRCCS San Raffaele Hospital, University Vita-Salute, Milan, Italy
| | - M Candiani
- Department of Obstetrics and Gynecology, IRCCS San Raffaele Hospital, University Vita-Salute, Milan, Italy
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Contro E, Larcher L, Balducci A, Prandstraller D, Perolo A, Lenzi J, Farina A, Donti A, Gargiulo G, Pilu G, Gatta AD. OC01.01: Foramen ovale morphology at fetal echocardiography may predict neonatal outcome in fetuses with complete transposition of the great arteries. Ultrasound Obstet Gynecol 2020; 56 Suppl 1:1-378. [PMID: 33063402 DOI: 10.1002/uog.22195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Revised: 08/09/2020] [Accepted: 08/18/2020] [Indexed: 06/11/2023]
Affiliation(s)
- E Contro
- Fetal Medicine Unit, Department of Obstetrics and Gynecology, Sant'Orsola-Malpighi Hospital, Bologna, Italy
| | - L Larcher
- Fetal Medicine Unit, Department of Obstetrics and Gynecology, Sant'Orsola-Malpighi Hospital, Bologna, Italy
| | - A Balducci
- Department of Cardiac Pediatric Surgery, Sant'Orsola-Malpighi Hospital, University of Bologna, Bologna, Italy
| | - D Prandstraller
- Department of Cardiac Pediatric Surgery, Sant'Orsola-Malpighi Hospital, University of Bologna, Bologna, Italy
| | - A Perolo
- Fetal Medicine Unit, Department of Obstetrics and Gynecology, Sant'Orsola-Malpighi Hospital, Bologna, Italy
| | - J Lenzi
- Sant'Orsola-Malpighi Hospital, University of Bologna, Bologna, Italy
| | - A Farina
- Fetal Medicine Unit, Department of Obstetrics and Gynecology, Sant'Orsola-Malpighi Hospital, Bologna, Italy
| | - A Donti
- Department of Cardiac Pediatric Surgery, Sant'Orsola-Malpighi Hospital, University of Bologna, Bologna, Italy
| | - G Gargiulo
- Department of Cardiac Pediatric Surgery, Sant'Orsola-Malpighi Hospital, University of Bologna, Bologna, Italy
| | - G Pilu
- Fetal Medicine Unit, Department of Obstetrics and Gynecology, Sant'Orsola-Malpighi Hospital, Bologna, Italy
| | - A Della Gatta
- Department of Obstetrics and Perinatal Medicine, University degli Studi di Bologna, Bologna, Italy
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47
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Sala F, Castriotta M, Paiè P, Farina A, D’Annunzio S, Zippo A, Osellame R, Bragheri F, Bassi A. High-throughput 3D imaging of single cells with light-sheet fluorescence microscopy on chip. Biomed Opt Express 2020; 11:4397-4407. [PMID: 32923051 PMCID: PMC7449749 DOI: 10.1364/boe.393892] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Revised: 06/01/2020] [Accepted: 06/02/2020] [Indexed: 05/08/2023]
Abstract
Single-cell analysis techniques are fundamental to study the heterogeneity of cellular populations, which is the basis to understand several biomedical mechanisms. Light-sheet fluorescence microscopy is a powerful technique for obtaining high-resolution imaging of individual cells, but the complexity of the setup and the sample mounting procedures limit its overall throughput. In our work, we present an optofluidic microscope-on-chip with integrated microlenses for light-sheet shaping and with a fluidic microchannel that allows the automatic and continuous delivery of samples of a few tens of microns in size. The device is used to perform dual-color fluorescence analysis and 3D reconstruction of xenograft-derived mouse breast cancer cells.
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Affiliation(s)
- Federico Sala
- Department of Physics, Politecnico di
Milano, Piazza Leonardo da Vinci 32, 20133 Milano, Italy
- Istituto di Fotonica e Nanotecnologie, CNR,
Piazza Leonardo da Vinci 32, 20133 Milano, Italy
| | - Michele Castriotta
- Department of Physics, Politecnico di
Milano, Piazza Leonardo da Vinci 32, 20133 Milano, Italy
- Istituto di Fotonica e Nanotecnologie, CNR,
Piazza Leonardo da Vinci 32, 20133 Milano, Italy
| | - Petra Paiè
- Istituto di Fotonica e Nanotecnologie, CNR,
Piazza Leonardo da Vinci 32, 20133 Milano, Italy
| | - Andrea Farina
- Istituto di Fotonica e Nanotecnologie, CNR,
Piazza Leonardo da Vinci 32, 20133 Milano, Italy
| | - Sarah D’Annunzio
- Laboratory of Chromatin Biology &
Epigenetics, Center for Integrative Biology (CIBIO), University of
Trento, 38123, Trento, Italy
| | - Alessio Zippo
- Laboratory of Chromatin Biology &
Epigenetics, Center for Integrative Biology (CIBIO), University of
Trento, 38123, Trento, Italy
| | - Roberto Osellame
- Department of Physics, Politecnico di
Milano, Piazza Leonardo da Vinci 32, 20133 Milano, Italy
- Istituto di Fotonica e Nanotecnologie, CNR,
Piazza Leonardo da Vinci 32, 20133 Milano, Italy
| | - Francesca Bragheri
- Istituto di Fotonica e Nanotecnologie, CNR,
Piazza Leonardo da Vinci 32, 20133 Milano, Italy
| | - Andrea Bassi
- Department of Physics, Politecnico di
Milano, Piazza Leonardo da Vinci 32, 20133 Milano, Italy
- Istituto di Fotonica e Nanotecnologie, CNR,
Piazza Leonardo da Vinci 32, 20133 Milano, Italy
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Gaspa S, Farina A, Tilocca M, Porcheddu A, Pisano L, Carraro M, Azzena U, De Luca L. Visible-Light Photoredox-Catalyzed Amidation of Benzylic Alcohols. J Org Chem 2020; 85:11679-11687. [PMID: 32662268 PMCID: PMC8009506 DOI: 10.1021/acs.joc.0c01320] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
A new photocatalyzed route to amides from alcohols and amines mediated by visible light is presented. The reaction is carried out in ethyl acetate as a solvent. Ethyl acetate can be defined a green and bio-based solvent. The starting materials such as the energy source are easily available, stable, and inexpensive. The reaction has shown to be general and high yielding.
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Affiliation(s)
- Silvia Gaspa
- Dipartimento di Chimica e Farmacia, Università degli Studi di Sassari, Via Vienna 2, 07100 Sassari, Italy
| | - Andrea Farina
- Dipartimento di Chimica e Farmacia, Università degli Studi di Sassari, Via Vienna 2, 07100 Sassari, Italy
| | - Mariella Tilocca
- Dipartimento di Chimica e Farmacia, Università degli Studi di Sassari, Via Vienna 2, 07100 Sassari, Italy
| | - Andrea Porcheddu
- Dipartimento di Scienze Chimiche e Geologiche, Università degli Studi di Cagliari, Cittadella Universitaria, 09042 Monserrato, Italy
| | - Luisa Pisano
- Dipartimento di Chimica e Farmacia, Università degli Studi di Sassari, Via Vienna 2, 07100 Sassari, Italy
| | - Massimo Carraro
- Dipartimento di Chimica e Farmacia, Università degli Studi di Sassari, Via Vienna 2, 07100 Sassari, Italy
| | - Ugo Azzena
- Dipartimento di Chimica e Farmacia, Università degli Studi di Sassari, Via Vienna 2, 07100 Sassari, Italy
| | - Lidia De Luca
- Dipartimento di Chimica e Farmacia, Università degli Studi di Sassari, Via Vienna 2, 07100 Sassari, Italy
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Farina A, Uccello G, Spreafico M, Bassanelli G, Savonitto S. SARS-CoV-2 detection in the pericardial fluid of a patient with cardiac tamponade. Eur J Intern Med 2020; 76:100-101. [PMID: 32359887 PMCID: PMC7177062 DOI: 10.1016/j.ejim.2020.04.045] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Accepted: 04/20/2020] [Indexed: 12/28/2022]
Affiliation(s)
- Andrea Farina
- Division of Cardiology, Cardiovascular Department, "A. Manzoni" Hospital - Lecco (LC), Via dell'Eremo, 9, 23900 Lecco, Italy
| | - Giuseppe Uccello
- Division of Cardiology, Cardiovascular Department, "A. Manzoni" Hospital - Lecco (LC), Via dell'Eremo, 9, 23900 Lecco, Italy
| | - Marta Spreafico
- Division of Clinical Pathology, Clinical Services Department, "A. Manzoni" Hospital - Lecco (LC), Italy
| | - Giorgio Bassanelli
- Division of Cardiology, Cardiovascular Department, "A. Manzoni" Hospital - Lecco (LC), Via dell'Eremo, 9, 23900 Lecco, Italy
| | - Stefano Savonitto
- Division of Cardiology, Cardiovascular Department, "A. Manzoni" Hospital - Lecco (LC), Via dell'Eremo, 9, 23900 Lecco, Italy.
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Lanka P, Segala A, Farina A, Konugolu Venkata Sekar S, Nisoli E, Valerio A, Taroni P, Cubeddu R, Pifferi A. Non-invasive investigation of adipose tissue by time domain diffuse optical spectroscopy. Biomed Opt Express 2020; 11:2779-2793. [PMID: 32499960 PMCID: PMC7249825 DOI: 10.1364/boe.391028] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Revised: 04/08/2020] [Accepted: 04/20/2020] [Indexed: 05/07/2023]
Abstract
The human abdominal region is very heterogeneous and stratified with subcutaneous adipose tissue (SAT) being one of the primary layers. Monitoring this tissue is crucial for diagnostic purposes and to estimate the effects of interventions like caloric restriction or bariatric surgery. However, the layered nature of the abdomen poses a major problem in monitoring the SAT in a non-invasive way by diffuse optics. In this work, we examine the possibility of using multi-distance broadband time domain diffuse optical spectroscopy to assess the human abdomen non-invasively. Broadband absorption and reduced scattering spectra from 600 to 1100 nm were acquired at 1, 2 and 3 cm source-detector distances on ten healthy adult male volunteers, and then analyzed using a homogeneous model as an initial step to understand the origin of the detected signal and how tissue should be modeled to derive quantitative information. The results exhibit a clear influence of the layered nature on the estimated optical properties. Clearly, the underlying muscle makes a relevant contribution in the spectra measured at the largest source-detector distance for thinner subjects related to blood and water absorption. More unexpectedly, also the thin superficial skin layer yields a direct contamination, leading to higher water content and steeper reduced scattering spectra at the shortest distance, as confirmed also by simulations. In conclusion, provided that data analysis properly accounts for the complex tissue structure, diffuse optics may offer great potential for the continuous non-invasive monitoring of abdominal fat.
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Affiliation(s)
- Pranav Lanka
- Dipartimento di Fisica, Politecnico di Milano, Milano, Italy
- Co-first authors with equal contribution
| | - Agnese Segala
- Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy
- Co-first authors with equal contribution
| | - Andrea Farina
- Dipartimento di Fisica, Politecnico di Milano, Milano, Italy
- Istituto di Fotonica e Nanotecnologie, Consiglio Nazionale delle Ricerche, Milano, Italy
| | | | - Enzo Nisoli
- Department of Medical Biotechnology and Translational Medicine, University of Milan, Milano, Italy
| | - Alessandra Valerio
- Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy
| | - Paola Taroni
- Dipartimento di Fisica, Politecnico di Milano, Milano, Italy
- Istituto di Fotonica e Nanotecnologie, Consiglio Nazionale delle Ricerche, Milano, Italy
| | - Rinaldo Cubeddu
- Dipartimento di Fisica, Politecnico di Milano, Milano, Italy
- Istituto di Fotonica e Nanotecnologie, Consiglio Nazionale delle Ricerche, Milano, Italy
| | - Antonio Pifferi
- Dipartimento di Fisica, Politecnico di Milano, Milano, Italy
- Istituto di Fotonica e Nanotecnologie, Consiglio Nazionale delle Ricerche, Milano, Italy
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