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Journal of Clinical Microbiology, January 1999, p. 35-38, Vol. 37, No. 1
Service de Parasitologie et Unité
INSERM 313,
Received 11 May 1998/Returned for modification 22 July
1998/Accepted 14 October 1998
We report in this work a highly sensitive and nonradioactive PCR
method for the detection of the four species of parasite causing human
malaria. Plasmodium-specific primers corresponding to the
small-subunit rRNA genes of the malaria parasite were used, and a
291-bp fragment was amplified. Our results showed a high specificity
for the four human Plasmodium species, and we were able to
detect one parasite in 50 µl of whole blood. The responses of 12 patients infected with Plasmodium falciparum to
antimalarial therapy were monitored by PCR diagnosis and examination of
thick blood film for at least 20 min by an experienced microscopist. For one patient this study allowed early diagnosis of therapeutic failure, confirmed 7 days later by examination of the thick blood film.
A total of 134 samples were examined; 94 were positive by PCR, and
among these 68 were positive by thick blood film examination. The
sensitivity of the thick blood film was 72.3% compared to PCR and
60.7% compared to dot blot hybridization.
0095-1137/99/$04.00+0
Copyright © 1999, American Society for Microbiology. All rights reserved.
Development of a Plasmodium PCR for
Monitoring Efficacy of Antimalarial Treatment
*
Corresponding author. Mailing address: Unité
INSERM 313, CHU Pitié-Salpêtrière, 47 Bld. de
l'Hôpital, 75013 Paris, France. Phone: 33-1-42-16-01-47. Fax: 33-1-42-16-01-65. E-mail:
martin.danis{at}psl.ap-hop-paris.fr.
Journal of Clinical Microbiology, January 1999, p. 35-38, Vol. 37, No. 1
0095-1137/99/$04.00+0
Copyright © 1999, American Society for Microbiology. All rights reserved.
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