This subproject is one of many research subprojects utilizing theresources provided by a Center grant funded by NIH/NCRR. The subproject andinvestigator (PI) may have received primary funding from another NIH source,and thus could be represented in other CRISP entries. The institution listed isfor the Center, which is not necessarily the institution for the investigator.Background: Monitoring renal function is an important part of clinical care and research. There is little guidance from the literature on how this should be done for HIV-infected patients. Body morphology abnormalities and weight shifts that occur among some HIV-infected patients may have a dramatic effect on the validity of the equations used to estimate GFR. Although measured glomerular filtration rate (GFR) is considered the gold standard, it is cumbersome, expensive, and not readily accessible in clinical settings. Thus, calculated GFR is used in routine clinical care. We have found marked differences in calculated GFR when using different formulas among HIV-infected patients.Purpose: Determine the best formula for calculating GFR among HIV-infected patients with lipoatrophy or lipohypertrophy.Methods: We will compare calculated GFR to GFR measured using a non-isotope iothalamate technique in a well characterized sample of 76 HIV-infected patients with lipoatrophy and lipohypertrophy. Calculated GFR will be performed using Cockroft-Gault (CG) creatinine clearance as an estimate of GFR and the modification of diet in renal disease (MDRD) formula to estimate GFR. Our analyses will focus on the accuracy of calculated GFR measures in comparison with measured GFR including calculations of bias and precision. Conclusions: This pilot study will evaluate the measurement of several estimated GFR techniques to determine their accuracy and precision among two of the groups of HIV-infected patients for whom estimated GFR equations are likely to be most problematic. This will contribute to our understanding of how we should be monitoring HIV-infected patients in clinical settings.

Agency
National Institute of Health (NIH)
Institute
National Center for Research Resources (NCRR)
Type
General Clinical Research Centers Program (M01)
Project #
5M01RR000037-47
Application #
7603495
Study Section
National Center for Research Resources Initial Review Group (RIRG)
Project Start
2007-04-01
Project End
2007-09-16
Budget Start
2007-04-01
Budget End
2007-09-16
Support Year
47
Fiscal Year
2007
Total Cost
$490
Indirect Cost
Name
University of Washington
Department
Internal Medicine/Medicine
Type
Schools of Medicine
DUNS #
605799469
City
Seattle
State
WA
Country
United States
Zip Code
98195
Courcoulas, Anita P; King, Wendy C; Belle, Steven H et al. (2018) Seven-Year Weight Trajectories and Health Outcomes in the Longitudinal Assessment of Bariatric Surgery (LABS) Study. JAMA Surg 153:427-434
Field, Alison E; Inge, Thomas H; Belle, Steven H et al. (2018) Association of Obesity Subtypes in the Longitudinal Assessment of Bariatric Surgery Study and 3-Year Postoperative Weight Change. Obesity (Silver Spring) 26:1931-1937
O'Rourke, Robert W; Johnson, Geoffrey S; Purnell, Jonathan Q et al. (2018) Serum biomarkers of inflammation and adiposity in the LABS cohort: associations with metabolic disease and surgical outcomes. Int J Obes (Lond) :
Cherrier, M M; Cross, D J; Higano, C S et al. (2018) Changes in cerebral metabolic activity in men undergoing androgen deprivation therapy for non-metastatic prostate cancer. Prostate Cancer Prostatic Dis 21:394-402
Duggan, Catherine; Baumgartner, Richard N; Baumgartner, Kathy B et al. (2018) Genetic variation in TNF?, PPAR?, and IRS-1 genes, and their association with breast-cancer survival in the HEAL cohort. Breast Cancer Res Treat 168:567-576
Han, Seung Jin; Boyko, Edward J; Kim, Soo Kyung et al. (2018) Association of Thigh Muscle Mass with Insulin Resistance and Incident Type 2 Diabetes Mellitus in Japanese Americans. Diabetes Metab J 42:488-495
Wander, Pandora L; Hayashi, Tomoshige; Sato, Kyoko Kogawa et al. (2018) Design and validation of a novel estimator of visceral adipose tissue area and comparison to existing adiposity surrogates. J Diabetes Complications 32:1062-1067
Purnell, Jonathan Q; Johnson, Geoffrey S; Wahed, Abdus S et al. (2018) Prospective evaluation of insulin and incretin dynamics in obese adults with and without diabetes for 2 years after Roux-en-Y gastric bypass. Diabetologia 61:1142-1154
King, Wendy C; Hinerman, Amanda S; Belle, Steven H et al. (2018) Comparison of the Performance of Common Measures of Weight Regain After Bariatric Surgery for Association With Clinical Outcomes. JAMA 320:1560-1569
Han, Seung Jin; Fujimoto, Wilfred Y; Kahn, Steven E et al. (2018) Change in visceral adiposity is an independent predictor of future arterial pulse pressure. J Hypertens 36:299-305

Showing the most recent 10 out of 563 publications