H
Helen Valsamis
Researcher at State University of New York System
Publications - 5
Citations - 465
Helen Valsamis is an academic researcher from State University of New York System. The author has contributed to research in topics: Internal medicine & Medicine. The author has an hindex of 2, co-authored 2 publications receiving 452 citations.
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Journal ArticleDOI
Persistent activation of the zeta isoform of protein kinase C in the maintenance of long-term potentiation
Todd Charlton Sacktor,Pavel Osten,Helen Valsamis,Xiaolan Jiang,Meghna U. Naik,Elizabeth Sublette +5 more
TL;DR: The transition from translocation of PKC to formation of PKM may help to explain the molecular mechanisms of induction and maintenance of long-term potentiation.
Journal ArticleDOI
Evidence for a new, high-molecular weight isoform of protein kinase C in rat hippocampus
Elizabeth Sublette,Meghna U. Naik,Xiaolan Jiang,Pavel Osten,Helen Valsamis,Shin-ichi Osada,Shigeo Ohno,Todd Charlton Sacktor +7 more
TL;DR: A new form of protein kinase C (PKC) is described with a molecular weight of 97 kDa, higher than the known forms of vertebrate PKC, and is localized primarily in brain, in contrast to PKC eta, which is found predominantly in lung and skin.
Journal ArticleDOI
Predictors of overlapping autoimmune disease in Neuromyelitis Optica Spectrum disorder (NMOSD): A retrospective analysis in two inner-city hospitals.
Milena Rodriguez Alvarez,Aveena Gurung,Vinodkumar Velayndhan,Fernando X. Cuascut,Samir Alkabie,La Toya Freeman,Ganesh Phayal,Naureen Kabani,Joshy Pathiparampil,Manjeet S Bhamra,Alexandra Kreps,Kristaq Koci,Sophia Francis,Su Zhaz Leon,Justin B Levinson,Mabelys Rodriguez Lezcano,Abhimanyu Amarnani,Steve Xie,Helen Valsamis,Yaacov Anziska,Ellen M. Ginzler,Isabel M. McFarlane +21 more
TL;DR: The coexistence of Neuromyelitis Optica spectrum disorder (NMOSD) with other autoimmune diseases presents worse clinical outcomes and healthcare costs than NMOSD alone as discussed by the authors .
Posted ContentDOI
SARS-CoV-2 Slows Brain Rhythms with more Severe Effects in Younger Individuals
C. Saab,Helen Valsamis,S Baki,J. Leung,Samer Ghosn,Brittany Lapin,Geetha Chari,Izad-Yar D. Rasheed,Jaehan Park,Vineet Punia,Dileep Nair,Ann Marie Kaniecki,Muhammad Muzzammil Edhi +12 more
TL;DR: Quantitative analysis of EEG showed distinct slowing of brain rhythms in C19 patients compared to control, and machine learning algorithms showed consistently higher accuracy in the binary classification of patients as C19 versus control using EEG power for subjects below age 70 compared to older ones, providing further evidence for the more severe impact of SARS-CoV-2 on brain rhythm in younger individuals.
Journal ArticleDOI
SARS-CoV-2 alters neural synchronies in the brain with more severe effects in younger individuals
Helen Valsamis,S Baki,Jason W. Leung,Samer Ghosn,Brittany Lapin,Geetha Chari,Izad-Yar D. Rasheed,Jaehan Park,Vineet Punia,Ghinwa Masri,Dileep Nair,Ann Marie Kaniecki,Muhammad Edhi,Carl Y. Saab +13 more
TL;DR: In this article , the authors developed a computational pipeline for the automated, rapid, high-throughput and objective analysis of electroencephalography (EEG) rhythms, and used this pipeline to define the quantitative EEG changes in patients with a PCR-positive diagnosis of CoV-2 (COVID19 or C19) in the intensive care unit (ICU) of Cleveland Clinic, compared to a group of age-matched PCR-negative (n = 38) control patients in the same ICU setting.