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Journal of Clinical Microbiology, October 2007, p. 3443-3445, Vol. 45, No. 10
0095-1137/07/$08.00+0     doi:10.1128/JCM.02367-06
Copyright © 2007, American Society for Microbiology. All Rights Reserved.

Evaluation of Pan-Dermatophyte Nested PCR in Diagnosis of Onychomycosis{triangledown}

Jaya Garg,1* Ragini Tilak,1 Sanjay Singh,2 Anil Kumar Gulati,1 Atul Garg,1 Pradyot Prakash,1 and Gopal Nath1

Departments of Microbiology,1 Dermatology, Institute of Medical Sciences, Banaras Hindu University, Varanasi, India2

Received 22 November 2006/ Returned for modification 12 February 2007/ Accepted 23 July 2007

In this study, nested PCR using novel primers targeting the pan-dermatophyte-specific sequence of the chitin synthase 1 gene (CHS1) was compared with KOH microscopy, culture isolation, and single-round PCR for diagnosis of 152 patients with clinically suspected onychomycosis. Results indicate that nested PCR may be considered the gold standard for the diagnosis of cases of onychomycosis for which the etiological agents are dermatophytes.


* Corresponding author. Present address: Department of Microbiology, JIPMER, Pondicherry 605006, India. Phone: 0091-9344493596. Fax: 0091-413-2272067. E-mail: jaya_bhu{at}rediffmail.com

{triangledown} Published ahead of print on 15 August 2007.


Journal of Clinical Microbiology, October 2007, p. 3443-3445, Vol. 45, No. 10
0095-1137/07/$08.00+0     doi:10.1128/JCM.02367-06
Copyright © 2007, American Society for Microbiology. All Rights Reserved.