Related Experiment Videos
Red cell acid phosphatase: another polymorphism correlated with Malaria?
American Journal of Physical Anthropology
|September 1, 1975
Summary
The distribution of acid phosphatase (AC) and G6PD polymorphisms in Sardinia is influenced by altitude and historical malaria prevalence. These genetic variations interact with thalassemia, impacting favism susceptibility.
Area of Science:
- Population genetics
- Human genetics
- Environmental health
Background:
- Acid phosphatase (AC) and Glucose-6-phosphate dehydrogenase (G6PD) are key enzymes with known genetic polymorphisms.
- Sardinia exhibits unique patterns of genetic variation, potentially shaped by historical environmental pressures.
- Favism, a hemolytic anemia, is linked to G6PD deficiency and certain dietary habits.
Purpose of the Study:
- To investigate the geographical distribution of acid phosphatase (AC) polymorphism in Sardinia.
- To explore correlations between AC allele frequency, altitude, and historical malaria prevalence.
- To examine the interplay of AC, G6PD, and thalassemia in favism susceptibility.
Main Methods:
- Analysis of acid phosphatase (AC) allele frequencies across fourteen Sardinian villages.
- Correlation studies with environmental factors like altitude and past malarial morbidity.
- Assessment of G6PD deficiency and thalassemia trait interactions with AC phenotypes.
Main Results:
- AC allele frequency positively correlates with altitude and negatively with past malaria.
- Thalassemia trait offers protection against favism only in individuals with the PA allele for AC.
- Interactions between AC, thalassemia, and G6PD influence favism risk.
Conclusions:
- Malaria's historical gradient, potentially interacting with thalassemia and G6PD, significantly shaped AC polymorphism distribution in Sardinia.
- Environmental factors associated with altitude also played a crucial role in the distribution of AC and G6PD polymorphisms.