Abstract:
:Paraoxonase gene polymorphisms (PON1-55 and PON1-192) were determined in four Mexican populations (Mestizos, Nahuas, Teenek and Mayos) belonging to different ethnic groups. The role of these polymorphisms in the lipid profile in the Mestizo group was also analyzed. PON1 polymorphisms were determined by polymerase chain reaction-restriction fragment length polymorphism. Comparison among Mexican populations showed increased frequencies of PON1-55 L allele and LL genotype and decreased frequencies of M allele and LM genotype in the three Amerindian populations when compared to Mestizos (P < 0.05). Mexicans together with Asian populations (from Japan and China) presented the highest frequencies of PON1-55 L allele (P < 0.05 when compared to Caucasian populations). Heterogeneous data were noted when PON1-192 polymorphism comparison was made. In summary, distribution frequencies of PON1 showed that Mexican populations are more related to Asians than Caucasians. This confirms previous studies with other genetic markers indicating that Native Americans have stronger genetic affinities to the Paleolithic people of North-East Asia than to other major world populations. In Mexican Mestizos, lack of correlation between PON1 polymorphisms and lipid profile was found, corroborating previous data in other populations. The present data could be helpful to understand the distribution of these polymorphisms and its role as genetic and evolutive markers in the Amerindian populations.
journal_name
Exp Mol Patholjournal_title
Experimental and molecular pathologyauthors
Gamboa R,Zamora J,Rodríguez-Pérez JM,Fragoso JM,Cardoso G,Posadas-Romero C,Vargas-Alarcón Gdoi
10.1016/j.yexmp.2005.05.006keywords:
subject
Has Abstractpub_date
2006-02-01 00:00:00pages
85-90issue
1eissn
0014-4800issn
1096-0945pii
S0014-4800(05)00068-7journal_volume
80pub_type
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