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Investigators and Program Directors

Vishnu Chaturvedi

Vishnu Chaturvedi

Research Scientist, Wadsworth Center, Fungal and Parasitic Disease
Assistant Professor, School of Public Health, Biomedical Sciences

Ph.D., University of Delhi, India (1988)
Postdoctoral training, Universidad Complutense, Madrid, University of Cincinnati & Yale University

E-mail: vishnu@wadsworth.org

<< Research Interests

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  • Dyavaiah M, Ramani R, Chu D, Ritterband D, Shah MK, Samsonoff, WA, Chaturvedi S,  Chaturvedi V. 2007. Molecular characterization, biofilm analysis and experimental biofouling study of Fusarium isolates from recent cases of fungal keratitis in New York State. BMC Ophthalmology. 7:1.
  • Ren P, Springer DJ, Behr MJ, Samsonoff WA, Chaturvedi S & Chaturvedi V. 2006. The transcription factor STE12α has distinct roles in morphogenesis, virulence, and ecological fitness of the primary pathogenic yeast Cryptococcus gattii. Eukaryotic Cell. 5:1065-1080.
  • Gangwar M, Cole R, Ramani R, Sheehan DJ, Chaturvedi V. 2006. Application of fluorescent probes to study structural changes in Aspergillus fumigatus exposed to amphotericin B, itraconazole, and voriconazole. Mycopathologia. 162:103-109.
  • Pfaller MA, Diekema DJ, Rex JH, Espinel-Ingroff A, Johnson EM, Andes D, Chaturvedi V, Ghannoum MA, Odds FC, Rinaldi MG, Sheehan DJ, Troke P, Walsh TJ & Warnock DW. 2006. Correlation of MIC with outcome for Candida species tested against voriconazole: analysis and proposal for interpretive breakpoints. Journal of Clinical Microbiology. 44:819-826.
  • Ren P, Rossettini A, Chaturvedi V & Hanes HD. 2005. The Ess1 prolyl isomerase is dispensable for growth but required for virulence in Cryptococcus neoformans. Microbiology. 151:1593-1605.
  • Narasipura SD, Chaturvedi V & Chaturvedi S. 2005. Characterization of Cryptococcus neoformans var. gattii SOD2 reveals distinct roles of the two superoxide dismutases in fungal biology and virulence. Molecular Microbiology. 55:1782-1800.
  • Chaturvedi S, Dyavaiah M, Larsen RA & Chaturvedi V. 2005. Cryptococcus gattii in AIDS patients, Southern California. Emerging Infectious Diseases. 11:1686-1692.
  • Chaturvedi S, Ren P, Narasipura SD & Chaturvedi V. 2005. Selection of optimal host strain for molecular pathogenesis studies on Cryptococcus gattii. Mycopathologia. 160:207-215.
  • Li Z, Li H, Devasahayam G, Gemmill T, Chaturvedi V, Hanes SD, & Van Roey P. 2005. Structure of the Candida albicans Ess1 prolyl isomerase reveals a well-ordered linker that restricts domain mobility. Biochemistry. 44:6180-6189.
  • Ren P, Roncaglia P, Springer DJ, Fan J & Chaturvedi V. 2004. Genomic organization and expression of 23 new genes from MATα locus of Cryptococcus neoformans var. gattii. Biochemical and Biophysical Research Communications. 326:233-241.
  • Ren P, Sridhar S & Chaturvedi V. 2004. Use of paraffin-embedded tissue for identification of Saccharomyces cerevisiae in a Baker's lung nodule by fungal PCR and nucleotide sequencing. Journal of Clinical Microbiology. 42:2840-2842.
  • Chaturvedi V, Ramani R & Rex JH. 2004. A Collaborative Study of Antibiotic Medium 3 and Flow Cytometry for Identification of Amphotericin B - Resistant Candida Isolates. Antimicrobial Agents and Chemotherapy. 48:2252-2254.
  • Chaturvedi V, Ramani R & Pfaller MA. 2004. A Collaborative Study of the NCCLS and flow cytometry methods for antifungal susceptibility testing of Candida albicans. Antimicrobial Agents and Chemotherapy. 48:2249-2251.
  • Ghannoum MA, Chaturvedi V, Espinel-Ingroff A, Pfaller MA, Rinaldi MG, Lee-Yang W & Warnock DW. 2004. Intra- and interlaboratory study of a method for testing the antifungal susceptibilities of dermatophytes. Journal of Clinical Microbiology. 42:2977-2979.
  • Biser A, Perry HD, Donnenfeld ED, Doshi SJ & Chaturvedi V. 2004. Arthrographis keratitis mimicking Acanthamoeba keratitis. CORNEA. 23:314-317.
  • Ramani R, Gangwar M & Chaturvedi V. 2003. Flow Cytometry Antifungal Susceptibility Testing of Aspergillus fumigatus and Comparison of Mode of Action of Voriconazole vis-à-vis Amphotericin B and Itraconazole. Antimicrobial Agents and Chemotherapy. 47:3627-3629.
  • Narasipura S, Ault J, Behr MJ, Chaturvedi V & Chturvedi S. 2003. Characterization of Cu,Zn superoxide dismutase (SOD1) gene knockout mutant of Cryptococcus neoformans var. gattii: role in biology and virulence. Molecular Microbiology. 47:1681-1694.
  • Ramani R & Chaturvedi V. 2003. Proficiency testing of clinical laboratories performing antifungal susceptibility testing of pathogenic yeasts. Journal of Clinical Microbiology. 41:1143-1146.
  • Gromadzki S, Ramani R & Chaturvedi V. 2003. Evaluation of Dermatophyte Identification Mediums (DIM) with dermatophytes and primary dimorphic pathogens. Journal of Clinical Microbiology. 41: 467-468.
  • Fisher MC, Rannala B, Chaturvedi V & Taylor JW. 2002. Disease Surveillance in Recombining Pathogens: Multilocus Genotypes Identify Sources of Human Coccidioides Infections. Proceedings of the US National Academy of Sciences. 99: 9067-9071.
  • Chaturvedi V, Fan J, Stein B, Behr MJ, Samsonoff W, Wickes BL & Chaturvedi S. 2002. Molecular genetic analyses of mating pheromones reveals intervariety mating/hybridization in Cryptococcus neoformans. Infection and Immunity. 70:5225-5235.
  • Fan J, Chaturvedi V & Shen S-H. 2002. Identification and phylogenetic relationships of a multiple glucose transporter family from human pathogenic yeast Candida albicans. Journal of Molecular Evolution 55:336-346.
  • Devasahayam G, Chaturvedi V & Hanes SD. 2002. The Ess1 prolyl isomerase is required for growth and morphogenetic switching in Candida albicans. GENETICS. 160: 37-48.
  • Safdar A, Chaturvedi V, Koll BS, Larone DH, Perlin DS & Armstrong D. 2002. Prospective, multicenter surveillance study of Candida glabrata: Fluconazole and itraconazole susceptibility profiles in bloodstream, invasive, and colonizing strains and differences between isolates from three urban teaching hospitals in New York City (Candida Susceptibility Trends Study, 1998 to 1999). Antimicrobial Agents and Chemotherapy. 46: 3268-3272.
  • Espinel-Ingroff A, Chaturvedi V, Fothergill A & Rinaldi MG. 2002. Optimal testing conditions for determining MICs and minimum fungicidal concentrations of new and established antifungal agents for uncommon molds: NCCLS collaborative study. Journal of Clinical Microbiology. 40:3776-3781.
  • Safdar A, Cross EA, Chaturvedi V, Perlin DS & Armstrong D. 2002. Prolonged candidemia in patients with cancer. Clinical Infectious Diseases. 35:778-779.

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Contact Information

Phone (518)474 4177
Fax (518)486 7811
E-mail: vishnu@wadsworth.org