Lack of association between interleukin-10 gene promoter polymorphism, -1082G/A, and severe malaria in Thailand.

Abstract

Interleukin-10 (IL-10) is an important cytokine in the down-regulation of inflammatory responses, and it has been reported that a low plasma concentration of IL-10 is associated with severe anemia and cerebral malaria in Plasmodium falciparum infections. The IL-10 gene is located on chromosome 1q31-32, and a promoter polymorphism (-1082G/A) is known to affect IL-10 protein production. In order to examine the possible association of the -1082G/A polymorphism with the severity of malaria, we studied 203 mild malaria, 164 non-cerebral severe malaria, and 109 cerebral malaria patients living in northwest Thailand. The genotyping was performed by a fluorescence resonance energy transfer (FRET) method. The frequencies of a major allele -1082A in mild malaria, in non-cerebral severe malaria, and in cerebral malaria patients were 92.6%, 92.1%, and 92.7% respectively. Our results showed no significant association of the -1082G/A polymorphism with the severity of malaria.

• Authors: Jun Ohashi, Izumi Naka, Jintana Patarapotikul, Hathairad Hananantachai, Sornchai Looareesuwan, Katsushi Tokunaga
• Journal: The Southeast Asian journal of tropical medicine and public health (Southeast Asian J Trop Med Public Health) Vol. 33 Suppl 3 Pg. 5-7 ( 2002) ISSN: 0125-1562 [Print] Thailand
• PMID: 12971465 (Publication Type: Comparative Study, Journal Article, Research Support, Non-U.S. Gov't)

Chemical References

• DNA Primers
• Interleukin-10

Topics

• Adolescent
• Adult
• Base Sequence
• DNA Primers
• Humans
• Interleukin-10 (genetics)
• Malaria, Falciparum (genetics, physiopathology)
• Polymorphism, Genetic
• Promoter Regions, Genetic
• Severity of Illness Index
• Thailand