system
Medical AI Inquiry: You was designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.  Labels: BACKGROUND, METHODS, RESULTS. Meshes: Adult, Aged, Biomarkers, Creatinine, Cross-Sectional Studies, Female, Humans, Hypertension, Hypertrophy, Left Ventricular, Insulin, Male, Middle Aged, Predictive Value of Tests, Risk Factors, Young Adult.
user
Do creatinine and insulin predict cardiac mass in drug-naïve hypertensive patients? Context: Blood pressure (BP) affects hypertensive left ventricular mass (LVM), explaining 10-25% of its variation. Thus, it is plausible that other factors operate in this process. Reduced kidney function is associated with increased LVM. We enrolled 1000 untreated hypertensives with serum creatinine ≤ 1.5mg/dL and without proteinuria. BP was measured by standard sphygmomanometer. LVM was calculated with the Devereux formula and indexed by body surface area (LVMI). Anthropometric and the following laboratory parameters were measured: plasma glucose, serum insulin, cholesterol, triglyceride, creatinine and e-GFR (CKD-EPI equation). On univariate analysis, both insulin (r=0.44, P<0.0001) and creatinine (r=0.37, P<0.001) were directly related to LVMI. In multivariate regression analysis insulin resulted the first factor in rank explaining the variability in LVMI (semipartial r=0.34,P<0.001), followed by creatinine. Fasting insulin interacts with creatinine in explaining LVM variability: 0.1mg/dL increase in creatinine produces an increase of 8.1g/m(2) in LVMI in patients with higher plasma insulin (upper quartiles).
assistant
Independently of other risk factors, fasting insulin and serum creatinine contribute to explain LVM development in hypertensives with preserved renal function; insulin interacts with creatinine in explaining LVM variability in these patients. Final Decision: yes