We have found no evidence to support linkage between the ACE locus and hypertension, which suggests that mutations at the ACE locus do not commonly contribute to the pathogenesis of hypertension in our test population.
In addition, research into the role of the renin-angiotensin system in blood pressure regulation has further implicated the angiotensinogen and angiotensin-converting enzyme loci in hypertension and its complications, such as myocardial infarction.
Our findings suggest that variation at the angiotensin-converting enzyme gene locus is one of the factors involved in the predisposition of diabetic patients to the development of arterial disease and hypertension.
Genetic linkage of the ACE gene to plasma angiotensin-converting enzyme activity but not to blood pressure. A quantitative trait locus confers identical complex phenotypes in human and rat hypertension.
There have been reports linking a homozygous deletion allele of the angiotensin converting enzyme (ACE) gene (DD) with an increased risk of myocardial infarction, and some variants of the angiotensinogen gene with an increased risk of hypertension.
All but one of the hypertensive subjects had at least one of the hypertension-associated alleles, and although subjects homozygous for both were three times more frequent in the hypertensive group, examination of the nine possible genotypes suggested that the INSR and DCP1 alleles are independent markers for hypertension.(ABSTRACT TRUNCATED AT 250 WORDS)
Mathematical predictions based on DCP1 association data suggest that high sib-pair numbers may be needed to achieve statistical significance by this approach, although differences in the severity of hypertension in different study groups could account for the disparate findings.3.
These results suggest that 1. the ACE gene polymorphism is not related to the onset of IgA nephropathy, but 2. the progression of IgA nephropathy may be influenced by the polymorphism which may be involved in glomerular hypertension.
Exciting new discoveries concerned with polymorphisms of genes coding for angiotensin converting enzyme (ACE) and angiotensinogen suggest that Ang II may be genetically associated with increased risk for myocardial infarction, hypertension and left ventricular hypertrophy.