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Sumana Kalyanasundaram
Researcher at Oslo University Hospital
Publications - 5
Citations - 380
Sumana Kalyanasundaram is an academic researcher from Oslo University Hospital. The author has contributed to research in topics: Gene & SCCmec. The author has an hindex of 3, co-authored 3 publications receiving 268 citations. Previous affiliations of Sumana Kalyanasundaram include Akershus University Hospital.
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Journal ArticleDOI
NAD+ Replenishment Improves Lifespan and Healthspan in Ataxia Telangiectasia Models via Mitophagy and DNA Repair
Evandro Fei Fang,Henok Kassahun,Deborah L. Croteau,Morten Scheibye-Knudsen,Morten Scheibye-Knudsen,Krisztina Marosi,Huiming Lu,Raghavendra A. Shamanna,Sumana Kalyanasundaram,Sumana Kalyanasundaram,Ravi Chand Bollineni,Mark A. Wilson,Wendy B. Iser,Bradley N. Wollman,Marya Morevati,Marya Morevati,Jun Li,Jesse S. Kerr,Qiping Lu,Tyler B. Waltz,Jane Tian,David A. Sinclair,David A. Sinclair,Mark P. Mattson,Mark P. Mattson,Hilde Nilsen,Vilhelm A. Bohr,Vilhelm A. Bohr +27 more
TL;DR: This work links two major theories on aging, DNA damage accumulation, and mitochondrial dysfunction through nuclear DNA damage-induced nuclear-mitochondrial signaling, and demonstrates that they are important pathophysiological determinants in premature aging of A-T, pointing to therapeutic interventions.
Journal ArticleDOI
Challenges in the identification of methicillin-resistant Staphylococcus argenteus by routine diagnostics.
Hege Smith Tunsjø,Hege Smith Tunsjø,Sumana Kalyanasundaram,Sumana Kalyanasundaram,Colin Charnock,Truls Michael Leegaard,Truls Michael Leegaard,Aina Elisabeth Fossum Moen,Aina Elisabeth Fossum Moen +8 more
TL;DR: The study shows that real‐time PCR can be used to differentiate the two species in routine diagnostics and suggests the MinION portable sequencer is a simple and affordable approach which could be used by many laboratories.
Journal ArticleDOI
High frequency of occupied attB regions in Norwegian Staphylococcus aureus isolates supports a two-step MRSA screening algorithm.
Hege Smith Tunsjø,Sumana Kalyanasundaram,Merete Molton Worren,Truls Michael Leegaard,Truls Michael Leegaard,Aina Elisabeth Fossum Moen,Aina Elisabeth Fossum Moen +6 more
TL;DR: A two-step MRSA screening algorithm with initial mec/nuc PCR followed by orfX-SCCmec PCR on positive samples was suggested and tested and allowed us to report MRSA results for 95.6% of all samples and 99 % of MRSA-negative samples after one day.
Journal ArticleDOI
Mitochondria hormesis delays aging and associated diseases in Caenorhabditis elegans impacting on key ferroptosis players.
Alfonso Schiavi,Eva Salveridou,Vanessa Brinkmann,Anjumara Shaik,Ralph Menzel,Sumana Kalyanasundaram,Ståle Nygård,Hilde Nilsen,Natascia Ventura +8 more
TL;DR: In this article , the potential beneficial effects of genetic and chemical interventions acting via mild iron instead of oxygen depletion was assessed, and it was shown that limiting iron availability in C. elegans through frataxin silencing or the iron chelator bipyridine, similar to hypoxia preconditioning, protects against hypoxiosis-, age-, and proteotoxicity-induced neuromuscular deficits.
Journal ArticleDOI
Mitochondria Preconditioning Promotes C. elegans Healthspan via Ferroptosis Inhibition
Alfonso Schiavi,Alessandra Runci,Eva Salveridou,Teresa Maiorino,Vanessa Brinkmann,Anjumara Shaik,Marta Barenys,Ellen Fritsche,Ralph Menzel,Sumana Kalyanasundaram,Ståle Nygård,Hilde Nilsen,Flavie Strappazzon,Natascia Ventura +13 more