Searched for: person:kistei01
Three-dimensional multi-parameter brain mapping using MR fingerprinting
Menon, Rajiv G; Sharafi, Azadeh; Muccio, Marco; Smith, Tyler; Kister, Ilya; Ge, Yulin; Regatte, Ravinder R
The purpose of this study was to develop and test a 3D multi-parameter MR fingerprinting (MRF) method for brain imaging applications. The subject cohort included 5 healthy volunteers, repeatability tests done on 2 healthy volunteers and tested on two multiple sclerosis (MS) patients. A 3D-MRF imaging technique capable of quantifying T 1 , T 2 and T 1Ï was used. The imaging sequence was tested in standardized phantoms and 3D-MRF brain imaging with multiple shots (1, 2 and 4) in healthy human volunteers and MS patients. Quantitative parametric maps for T 1 , T 2 , T 1Ï , were generated. Mean gray matter (GM) and white matter (WM) ROIs were compared for each mapping technique, Bland-Altman plots and intra-class correlation coefficient (ICC) were used to assess repeatability and Student T-tests were used to compare results in MS patients. Standardized phantom studies demonstrated excellent agreement with reference T 1 /T 2/ T 1Ï mapping techniques. This study demonstrates that the 3D-MRF technique is able to simultaneously quantify T 1 , T 2 and T 1Ï for tissue property characterization in a clinically feasible scan time. This multi-parametric approach offers increased potential to detect and differentiate brain lesions and to better test imaging biomarker hypotheses for several neurological diseases, including MS.
PMCID:10055680
PMID: 36993561
ISSN: n/a
CID: 5534442
Volumetric brain changes in MOGAD: A cross-sectional and longitudinal comparative analysis
Lotan, Itay; Billiet, Thibo; Ribbens, Annemie; Van Hecke, Wim; Huang, Benny; Kister, Ilya; Lotan, Eyal
BACKGROUND:Relatively little is known about how global and regional brain volumes changes in myelin oligodendrocyte glycoprotein antibody-associated disease (MOGAD) compare with Multiple Sclerosis (MS), Neuromyelitis optica spectrum disorder (NMOSD), and healthy controls (HC). OBJECTIVE:To compare global and regional brain volumes in MOGAD, MS, NMOSD, and HC cross-sectionally as well as longitudinally in a subset of patients. METHODS:We retrospectively reviewed all adult MOGAD and NMOSD patients with brain MRI performed in stable remission and compared them with MS patients and HC. Volumetric parameters were assessed using the FDA-approved icobrain software. adjusted for age and sex. RESULTS:Twenty-four MOGAD, 47 NMOSD, 40 MS patients, and 37 HC were included in the cross-sectional analyses. Relative to HC, the age-adjusted whole brain (WB) volume was significantly lower in patients with MOGAD (p=0.0002), NMOSD (p=0.042), and MS (p=0.01). Longitudinal analysis of a subset of 8 MOGAD, 22 NMOSD, and 34 MS patients showed a reduction in the WB and cortical gray matter (CGM) volumes over time in all three disease groups, without statistically significant differences between groups. The MOGAD group had a greater loss of thalamic volume compared to MS (p=0.028) and NMOSD (p=0.023) and a greater loss of hippocampal volumes compared to MS (p=0.007). CONCLUSIONS:Age-adjusted WB volume loss was evident in all neuroinflammatory conditions relative to HC in cross-sectional comparisons. In longitudinal analyses, MOGAD patients had a higher thalamic atrophy rate relative to MS and NMOSD, and a higher hippocampal atrophy rate relative to MS. Larger studies are needed to validate these findings and to investigate their clinical implications.
PMID: 36512956
ISSN: 2211-0356
CID: 5382102
Toward Precision Phenotyping of Multiple Sclerosis
Pitt, David; Lo, Chih Hung; Gauthier, Susan A; Hickman, Richard A; Longbrake, Erin; Airas, Laura M; Mao-Draayer, Yang; Riley, Claire; De Jager, Philip Lawrence; Wesley, Sarah; Boster, Aaron; Topalli, Ilir; Bagnato, Francesca; Mansoor, Mohammad; Stuve, Olaf; Kister, Ilya; Pelletier, Daniel; Stathopoulos, Panos; Dutta, Ranjan; Lincoln, Matthew R
The classification of multiple sclerosis (MS) has been established by Lublin in 1996 and revised in 2013. The revision includes clinically isolated syndrome, relapsing-remitting, primary progressive and secondary progressive MS, and has added activity (i.e., formation of white matter lesions or clinical relapses) as a qualifier. This allows for the distinction between active and nonactive progression, which has been shown to be of clinical importance. We propose that a logical extension of this classification is the incorporation of additional key pathological processes, such as chronic perilesional inflammation, neuroaxonal degeneration, and remyelination. This will distinguish MS phenotypes that may present as clinically identical but are driven by different combinations of pathological processes. A more precise description of MS phenotypes will improve prognostication and personalized care as well as clinical trial design. Thus, our proposal provides an expanded framework for conceptualizing MS and for guiding development of biomarkers for monitoring activity along the main pathological axes in MS.
PMCID:9427000
PMID: 36041861
ISSN: 2332-7812
CID: 5332122
Hybrid and vaccine-induced immunity against SAR-CoV-2 in MS patients on different disease-modifying therapies
Kister, Ilya; Curtin, Ryan; Pei, Jinglan; Perdomo, Katherine; Bacon, Tamar E; Voloshyna, Iryna; Kim, Joseph; Tardio, Ethan; Velmurugu, Yogambigai; Nyovanie, Samantha; Valeria Calderon, Andrea; Dibba, Fatoumatta; Stanzin, Igda; Samanovic, Marie I; Raut, Pranil; Raposo, Catarina; Priest, Jessica; Cabatingan, Mark; Winger, Ryan C; Mulligan, Mark J; Patskovsky, Yury; Silverman, Gregg J; Krogsgaard, Michelle
OBJECTIVE:To compare "hybrid immunity" (prior COVID-19 infection plus vaccination) and post-vaccination immunity to SARS CoV-2 in MS patients on different disease-modifying therapies (DMTs) and to assess the impact of vaccine product and race/ethnicity on post-vaccination immune responses. METHODS:Consecutive MS patients from NYU MS Care Center (New York, NY), aged 18-60, who completed primary COVID-19 vaccination series ≥6 weeks previously were evaluated for SARS CoV-2-specific antibody responses with electro-chemiluminescence and multiepitope bead-based immunoassays and, in a subset, live virus immunofluorescence-based microneutralization assay. SARS CoV-2-specific cellular responses were assessed with cellular stimulation TruCulture IFNγ and IL-2 assay and, in a subset, with IFNγ and IL-2 ELISpot assays. Multivariate analyses examined associations between immunologic responses and prior COVID-19 infection while controlling for age, sex, DMT at vaccination, time-to-vaccine, and vaccine product. RESULTS:Between 6/01/2021 and 11/11/2021, 370 MS patients were recruited (mean age 40.6 years; 76% female; 53% non-White; 22% with prior infection; common DMT classes: ocrelizumab 40%; natalizumab 15%, sphingosine-1-phosphate receptor modulators 13%; and no DMT 8%). Vaccine-to-collection time was 18.7 (±7.7) weeks and 95% of patients received mRNA vaccines. In multivariate analyses, patients with laboratory-confirmed prior COVID-19 infection had significantly increased antibody and cellular post-vaccination responses compared to those without prior infection. Vaccine product and DMT class were independent predictors of antibody and cellular responses, while race/ethnicity was not. INTERPRETATION/CONCLUSIONS:Prior COVID-19 infection is associated with enhanced antibody and cellular post-vaccine responses independent of DMT class and vaccine type. There were no differences in immune responses across race/ethnic groups.
PMID: 36165097
ISSN: 2328-9503
CID: 5334142
Balance, Gait and Mobility
Arena, Vito; Kister, Ilya
ORIGINAL:0015915
ISSN: n/a
CID: 5308192
Case Conference: Diagnosing Fast & Slow in Neurology : this case conference illustrates how to switch from "thinking fast" to "thinking slow" when the data do not fit the diagnosis
Kister, Ilya; Biller, Jose
ORIGINAL:0015913
ISSN: 1474-7766
CID: 5308172
Case Conference: The "Noise" of Medicine
Kister, Ilya; Biller, Jose
ORIGINAL:0015910
ISSN: 1474-7766
CID: 5308142
MS Masters Toolbox: Fatigue
Arena, Vito; Kister, Ilya
ORIGINAL:0015916
ISSN: n/a
CID: 5308202
Cellular and Humoral Immunity to SARS-CoV-2 Infection in Multiple Sclerosis Patients on Ocrelizumab and Other Disease-Modifying Therapies: A Multi-Ethnic Observational Study
Kister, Ilya; Patskovsky, Yury; Curtin, Ryan; Pei, Jinglan; Perdomo, Katherine; Rimler, Zoe; Voloshyna, Iryna; Samanovic, Marie I; Cornelius, Amber R; Velmurugu, Yogambigai; Nyovanie, Samantha; Kim, Joseph J; Tardio, Ethan; Bacon, Tamar E; Zhovtis Ryerson, Lana; Raut, Pranil; Pedotti, Rosetta; Hawker, Kathleen; Raposo, Catarina; Priest, Jessica; Cabatingan, Mark; Winger, Ryan C; Mulligan, Mark J; Krogsgaard, Michelle; Silverman, Gregg J
OBJECTIVE:The objective of this study was to determine the impact of multiple sclerosis (MS) disease-modifying therapies (DMTs) on the development of cellular and humoral immunity to severe acute respiratory syndrome-coronavirus 2 (SARS-CoV-2) infection. METHODS:Patients with MS aged 18 to 60 years were evaluated for anti-nucleocapsid and anti-Spike receptor-binding domain (RBD) antibody with electro-chemiluminescence immunoassay; antibody responses to Spike protein, RBD, N-terminal domain with multiepitope bead-based immunoassays (MBI); live virus immunofluorescence-based microneutralization assay; T-cell responses to SARS-CoV-2 Spike using TruCulture enzyme-linked immunosorbent assay (ELISA); and IL-2 and IFNγ ELISpot assays. Assay results were compared by DMT class. Spearman correlation and multivariate analyses were performed to examine associations between immunologic responses and infection severity. RESULTS:Between January 6, 2021, and July 21, 2021, 389 patients with MS were recruited (mean age 40.3 years; 74% women; 62% non-White). Most common DMTs were ocrelizumab (OCR)-40%; natalizumab -17%, Sphingosine 1-phosphate receptor (S1P) modulators -12%; and 15% untreated. One hundred seventy-seven patients (46%) had laboratory evidence of SARS-CoV-2 infection; 130 had symptomatic infection, and 47 were asymptomatic. Antibody responses were markedly attenuated in OCR compared with other groups (p ≤0.0001). T-cell responses (IFNγ) were decreased in S1P (p = 0.03), increased in natalizumab (p <0.001), and similar in other DMTs, including OCR. Cellular and humoral responses were moderately correlated in both OCR (r = 0.45, p = 0.0002) and non-OCR (r = 0.64, p <0.0001). Immune responses did not differ by race/ethnicity. Coronavirus disease 2019 (COVID-19) clinical course was mostly non-severe and similar across DMTs; 7% (9/130) were hospitalized. INTERPRETATION/CONCLUSIONS:DMTs had differential effects on humoral and cellular immune responses to SARS-CoV-2 infection. Immune responses did not correlate with COVID-19 clinical severity in this relatively young and nondisabled group of patients with MS. ANN NEUROL 2022.
PMID: 35289960
ISSN: 1531-8249
CID: 5191732
MS Masters Toolbox: Heat Sensitivity and Exercise Intolerance
Arena, Vito; Kister, Ilya
ORIGINAL:0015917
ISSN: n/a
CID: 5308212