S
Sujatha Narayanan
Researcher at Indian Council of Medical Research
Publications - 83
Citations - 3164
Sujatha Narayanan is an academic researcher from Indian Council of Medical Research. The author has contributed to research in topics: Mycobacterium tuberculosis & Tuberculosis. The author has an hindex of 23, co-authored 83 publications receiving 2915 citations.
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Journal ArticleDOI
Variable host-pathogen compatibility in Mycobacterium tuberculosis.
Sebastien Gagneux,Kathryn DeRiemer,Tran Van,Midori Kato-Maeda,Bouke C. de Jong,Sujatha Narayanan,Mark P. Nicol,Stefan Niemann,Kristin Kremer,M. Cristina Gutierrez,Markus Hilty,Philip C. Hopewell,Peter M. Small +12 more
TL;DR: It is demonstrated that the global population structure of M. tuberculosis is defined by six phylogeographical lineages, each associated with specific, sympatric human populations, and in an urban cosmopolitan environment, mycobacterial lineages were much more likely to spread in sympatrics than in allopatric patient populations.
Journal ArticleDOI
Genomic analysis of globally diverse Mycobacterium tuberculosis strains provides insights into the emergence and spread of multidrug resistance
Abigail L. Manson,Keira A. Cohen,Keira A. Cohen,Thomas Abeel,Thomas Abeel,Christopher A. Desjardins,Derek T. Armstrong,Clifton E. Barry,Jeannette Brand,Sinéad B. Chapman,Sang Nae Cho,Andrei Gabrielian,James Gomez,Andreea M. Jodals,Moses Joloba,P. Jureen,Jong Seok Lee,Lesibana Anthony Malinga,Mamoudou Maiga,Dale Nordenberg,Ecaterina Noroc,Elena Romancenco,Alex N. Salazar,Alex N. Salazar,Willy Ssengooba,Ali Akbar Velayati,Kathryn Winglee,Aksana Zalutskaya,Laura E. Via,Gail H. Cassell,Susan E. Dorman,Jerrold J. Ellner,Parissa Farnia,James E. Galagan,James E. Galagan,Alex Rosenthal,Valeriu Crudu,Daniela Homorodean,Po-Ren Hsueh,Sujatha Narayanan,Alexander S. Pym,Alena Skrahina,Soumya Swaminathan,Martie van der Walt,David Alland,William R. Bishai,Ted Cohen,Ted Cohen,Sven Hoffner,Bruce W. Birren,Ashlee M. Earl +50 more
TL;DR: Molecular diagnostics that include markers for rifampicin resistance alone will be insufficient to identify pre-MDR strains, and incorporation of knowledge of polymorphisms that occur before the emergence of multidrug resistance, particularly katG p.Ser315Thr, into molecular diagnostics should enable targeted treatment of patients with pre-mDR-TB to prevent further development of MDR- TB.
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Mutations in the rpoB gene of multidrug-resistant Mycobacterium tuberculosis clinical isolates from India.
TL;DR: Three novel mutations and three new alleles within and outside the RRDR, along with two novel mutations outside theRRDR, are reported in this study.
Journal ArticleDOI
Predominance of ancestral lineages of Mycobacterium tuberculosis in India.
M. Cristina Gutierrez,Niyaz Ahmed,Eve Willery,Sujatha Narayanan,Seyed E. Hasnain,Devendra Singh Chauhan,Vishwa Mohan Katoch,Véronique Vincent,Camille Locht,Philip Supply +9 more
TL;DR: Molecular epidemiologic findings suggest an ancient focus of TB, and suggest it may be related to infectious disease-related coronavirus-related infections such as pneumonia and tuberculosis.
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Protein kinase E of Mycobacterium tuberculosis has a role in the nitric oxide stress response and apoptosis in a human macrophage model of infection
TL;DR: Evidence is provided that the functional serine/threonine kinase, PknE, is important for survival of M. tuberculosis that enhances macrophage viability by inhibiting apoptosis, and a novel mechanism, by which PKnE senses nitric oxide stress and prevents apoptosis by interfering with host signalling pathways is suggested.