Tamara Didishvili

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Chlamydia pneumoniae (Cpn) has been associated with human coronary artery disease but causal relevance as a risk factor has not been shown. Several rabbit and mouse model studies demonstrate exacerbation of aortic atherosclerosis by Cpn, however impact of Cpn on coronary artery disease (CAD) and survival outcomes has not been shown. To study this, we used(More)
Essential (polygenic) hypertension is a complex genetic disorder that remains a major risk factor for cardiovascular disease despite clinical advances, reiterating the need to elucidate molecular genetic mechanisms. Elucidation of susceptibility genes remains a challenge, however. Blood pressure (BP) regulatory pathways through angiotensin II (ANG II) and(More)
BACKGROUND The mechanisms underlying the known interaction of two complex polygenic traits, hypertension and hyperlipidemia, resulting in exacerbation of coronary artery disease have not been elucidated. Identification of critical pathways underlying said exacerbation could identify mechanism-based targets for intervention and prevention. MATERIALS AND(More)
Hypercholesterolemia is a significant risk factor for coronary artery disease development. Genes influencing nonmonogenic hypercholesterolemia susceptibility in humans remain to be identified. Animal models are key investigative systems because major confounding variables such as diet, activity, and genetic background can be controlled. We performed a(More)
The dual endothelin-1/angiotensin II receptor (Dear) binds endothelin-1 (ET-1) and angiotensin II (ANG II) with equal affinities in the Dahl S/JRHS rat strain. To elucidate its physiological significance within the context of multiple receptor isoforms and diverse ET-1 and ANG II functions spanning blood pressure regulation, tumor proliferation, and(More)
Epidemiological and clinical data demonstrate differences in atherosclerotic coronary heart disease prevalence between age-matched men and premenopausal women. Mechanisms underlying relative athero-susceptibility in men and athero-resistance in premenopausal women remain to be elucidated. Lack of informative animal models hinders research. We report here a(More)
BACKGROUND Human acute coronary syndrome refers to the spectrum of clinical manifestations of overt coronary artery (CAD) disease characterized by atherosclerotic plaque destabilization and resultant myocardial injury. Typically studied as distinct pathologies, emerging pathogenic paradigms implicate multiple processes beyond thrombosis and ischemic cell(More)
Essential hypertension is highly prevalent in the elderly population, exceeding 70% in people older than 60 yr of age, and remains a leading risk factor for heart disease, stroke, and chronic renal disease. Elucidation of genetic determinants is critical but remains a challenge due to its complex, multifactorial pathogenesis. We investigated the role DEspR(More)
The angiotensin-vasopressin receptor (AVR) responds with equivalent affinities to angiotensin II (ANG II) and vasopressin and is coupled to adenylate cyclase and hence a V2-type vasopressin receptor. AVR maps to the Nalp6 locus and overlaps with the larger Nalp6/PYPAF5 reported to be a T cell/granulocyte-specific, cytoplasmic-specific proapoptotic protein,(More)
Coronary artery disease, heart failure, fatal arrhythmias, stroke, and renal disease are the most common causes of mortality for humans, and essential hypertension remains a major risk factor. Elucidation of susceptibility loci for essential hypertension has been difficult because of its complex, multifactorial nature involving genetic, environmental, and(More)