Appropriate Time for Primaquine Treatment to Reduce Plasmodium falciparum Transmission in Hypoendemic Areas
The Korean Journal of Parasitology
; : 179-182, 2010.
Artigo
em Inglês
| WPRIM (Pacífico Ocidental)
| ID: wpr-162803
Biblioteca responsável:
WPRO
ABSTRACT
Artemesinin-combination therapies (ACT) for falciparum malaria reduce gametocyte carriage, and therefore reduce transmission. Artemisinin derivatives will act against only young gametocytes whereas primaquine acts on mature gametocytes which are present usually in the circulation at the time when the patient presents for treatment. Both artemisinin derivatives and primaquine have short half-lives, less than 1 hr and 7 hr, respectively. Therefore, asexual parasites or young gametocytes remain after completed ACT. A single dose of primaquine (0.50-0.75 mg base/kg) at the end of ACT can kill only mature gametocytes but cannot kill young gametocytes (if present). Remaining asexual forms after completion of ACT course, e.g., artesunate-mefloquine for 3 days, may develop to mature gametocytes 7-15 days later. Thus, an additional dose of primaquine (0.50-0.75 mg base/kg) given 2 weeks after ACT completion may be beneficial for killing remaining mature gametocytes and contribute to more interruption of Plasmodium falciparum transmission than giving only 1 single dose of primaquine just after completing ACT.
Texto completo:
Disponível
Contexto em Saúde:
Agenda de Saúde Sustentável para as Américas
/
ODS3 - Saúde e Bem-Estar
/
Doenças Negligenciadas
Problema de saúde:
Objetivo 10: Doenças transmissíveis
/
Meta 3.3: Acabar com as doenças tropicais negligenciadas e combater as doenças transmissíveis
/
Malária
Base de dados:
WPRIM (Pacífico Ocidental)
Idioma:
Inglês
Revista:
The Korean Journal of Parasitology
Ano de publicação:
2010
Tipo de documento:
Artigo