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La compleja relación entre la ancestría amerindia y la obesidad en la población mexicana

Alternative title:
Complex relationship between Amerindian ancestry and obesity in the Mexican population
Abstract:
La alta prevalencia de obesidad en las poblaciones mexicoamericanas en Estados Unidos ha sugerido que la composición genética diferente de la población mexicana podría estar relacionada con la alta prevalencia de obesidad en México. Recientemente, se exploró el genoma de 140 000 individuos en la cohorte Estudio Prospectivo de la Ciudad de México (MCPS, Mexico City Prospective Study) y se encontró que el promedio de ancestría amerindia (AMR) fue de 66.2 %, seguida de las ancestrías europea (29.2 %), africana (3.7 %) y asiática (0.8 %). Sin embargo, las proporciones de ancestría varían según la región geográfica del país, observándose un gradiente creciente de AMR de norte a sur. A pesar de la importancia de esta relación, existen pocos estudios que han analizado la relación entre obesidad y AMR; además, los resultados son controversiales. La relación entre AMR y obesidad central ha sido más consistente, especialmente en mujeres. Se han encontrado pocas variantes genéticas asociadas a la obesidad en México, debido principalmente al reducido número de individuos estudiados. Análisis futuros de la cohorte MCPS seguramente permitirán esclarecer con precisión la relación entre AMR y obesidad, e identificar variaciones genéticas y genes específicos del genoma amerindio asociados a la obesidad y a otras enfermedades metabólicas.

The high prevalence of obesity in Mexican-American populations in the United States has suggested that the different genetic composition of the Mexican population may be related to the high prevalence of obesity in Mexico. Recently, the genome of 140,000 individuals in the Mexico City Prospective Study (MCPS) cohort was explored, and it was found that the average Amerindian ancestry (AMR) was 66.2%, followed by European (29.2%), African (3.7%), and Asian (0.8%) ancestries. However, the proportions of ancestry vary by geographic region of the country, with an increasing gradient of AMR from north to south. Despite the importance of this relationship, there are few studies that have analyzed the relationship between obesity and AMR, and the results are controversial. The relationship between AMR and central obesity has been more consistent, especially in women. Few genetic variants associated with obesity have been found in Mexico, due to the small number of individuals analyzed. Future analysis of the MCPS cohort will likely clarify the relationship between AMR and obesity, and identify genetic variations and genes associated with obesity and other metabolic diseases, specific to the Amerindian genome.
Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.24875/gmm.24000439

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Institution:
University of Oxford
Division:
MSD
Department:
Nuffield Department of Population Health
Sub department:
Clinical Trial Service Unit
Role:
Author


Publisher:
Publicidad Permanyer
Journal:
Gaceta Médica de México More from this journal
Publication date:
2025-03-13
Acceptance date:
2025-01-09
DOI:
ISSN:
0016-3813


Language:
Spanish
Keywords:
Pubs id:
2097539
Local pid:
pubs:2097539
Deposit date:
2025-04-01
ARK identifier:

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