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Involvement of mitochondrial haplogroups in myocardial infarction and stroke: A case-control study in Castile and

Miriam Umbria1, Amanda Ramos1, Jennifer Caner1

  • 1Unitat d'Antropologia Biològica, Department BABVE, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Barcelona, Spain.

Mitochondrion
|December 21, 2017
PubMed

Insights

Mitochondrial DNA (mtDNA) haplogroup H is linked to increased myocardial infarction risk, while haplogroup J may offer protection against hypertension. These findings highlight genetic factors in cardiovascular disease development.

Area of Science:

  • Genetics
  • Cardiovascular Medicine
  • Mitochondrial Biology

Background:

  • Mitochondrial DNA (mtDNA) haplogroups are increasingly recognized for their potential role in disease pathogenesis.
  • Cardiovascular diseases (CVDs) represent a significant global health burden with complex etiological factors.

Purpose of the Study:

  • To investigate the association between specific mtDNA haplogroups and the risk of myocardial infarction (MI) and stroke.
  • To explore the relationship between mtDNA haplogroups and common cardiovascular risk factors, including hypertension.

Main Methods:

  • A matched case-control study design was employed.
  • Analysis focused on common mtDNA haplogroups and their correlation with MI, stroke, and hypertension.
  • Statistical analysis included odds ratios (OR) and confidence intervals (CI) to assess risk and protective effects.

Main Results:

  • Mitochondrial DNA haplogroup H was identified as a significant susceptibility risk factor for myocardial infarction (p=0.001; OR=2.379).
  • Mitochondrial DNA haplogroup J demonstrated a potential beneficial role in mitigating the risk of hypertension (p=0.019; OR=0.348).

Conclusions:

  • Specific mtDNA haplogroups, such as H and J, may influence individual susceptibility to cardiovascular diseases.
  • Understanding these genetic variations could aid in predicting cardiovascular disease risk across diverse populations.
  • Differences in energy efficiency between mtDNA haplogroups might underlie their impact on cardiovascular health.

Keywords:
Cardiovascular diseaseHypertensionMyocardial infarctionSpainStrokemtDNA haplogroups

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