Do renin-angiotensin system gene polymorphisms influence blood pressure and the response to angiotensin converting enzyme inhibition?
The ACE and AT1R gene loci (chromosomes 17q and 3q, respectively) may carry alleles influencing blood pressure variation in this hypertensive population, with a possible epistatic interaction between the two loci. The AGT T235 allele does not appear to be a marker for blood pressure variation in this group, but variants on chromosome 1q lying in or near the AGT gene may contribute to individual differences in the blood pressure response to ACE inhibition. Among essential hypertensives, differences in the ACE inhibitor response appear, in part, to be genetically determined.
These results indicate that most expert orthopedic trauma surgeons do not believe that an immediate operation is necessary to adequately treat a displaced talar neck fracture.