Kidney medicine · 2024
Proneurotensin/Neuromedin N and Risk of Incident CKD and Other Kidney Outcomes in Community-Living Individuals: The REGARDS Study.
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Bullen Alexander L, Fregoso-Leyva Alma, Katz Ronit, Long Dorothy Leann, Cheung Katharine L, Judd Suzanne E, Gutierrez Orlando M, Ix Joachim H, Cushman Mary, Rifkin Dena E
Аннотация
RATIONALE & OBJECTIVE: Plasma proneurotensin/neuromedin N (pro-NT/NMN) is a precursor of neurotensin, a tridecapeptide linked with type 2 diabetes mellitus and other comorbid conditions associated with kidney disease. Whether pro-NT/NMN is directly associated with incident chronic kidney disease (CKD), and whether that association differs by race, is uncertain. We evaluated whether pro-NT/NMN levels were associated with increased risk of kidney outcomes.
STUDY DESIGN: Prospective cohort.
SETTING & PARTICIPANTS: Participants in Biomarker Mediators of Racial Disparities in Risk Factors, a nested cohort from the REasons for Geographic And Racial Differences in Stroke study, with available stored serum and urine samples from baseline and second visits for biomarker measurement.
EXPOSURE: Baseline log-transformed pro-NT/NMN.
OUTCOMES: Incident CKD, progressive estimated glomerular filtration rate (eGFR) decline, incident albuminuria, and incident kidney failure within median follow-up time of 9.4 years.
ANALYTICAL APPROACH: Logistic regression.
RESULTS: Among 3,914 participants, the mean ± SD age was 64 ± 8 (SD) years, 48% were women, and 51% were Black. Median baseline eGFR was 90 (IQR, 77-102) mL/min/1.73 m2. Each SD higher of pro-NT/NMN was associated with 9% higher odds of progressive eGFR decline (OR, 1.09; 95% CI, 1.00-1.20). There was no association observed with incident CKD (OR, 1.10; 95% CI, 0.96-1.27), incident albuminuria (OR, 1.08; 95% CI, 0.96-1.22), or incident kidney failure (OR, 1.10; 95% CI, 0.83-1.46). There were no differences in results by race or sex.
LIMITATIONS: Single measurement of pro-NT/NMN and limited generalizability.
CONCLUSIONS: Higher pro-NT/NMN was associated with progressive eGFR decline but no other manifestations of kidney disease incidence.
STUDY DESIGN: Prospective cohort.
SETTING & PARTICIPANTS: Participants in Biomarker Mediators of Racial Disparities in Risk Factors, a nested cohort from the REasons for Geographic And Racial Differences in Stroke study, with available stored serum and urine samples from baseline and second visits for biomarker measurement.
EXPOSURE: Baseline log-transformed pro-NT/NMN.
OUTCOMES: Incident CKD, progressive estimated glomerular filtration rate (eGFR) decline, incident albuminuria, and incident kidney failure within median follow-up time of 9.4 years.
ANALYTICAL APPROACH: Logistic regression.
RESULTS: Among 3,914 participants, the mean ± SD age was 64 ± 8 (SD) years, 48% were women, and 51% were Black. Median baseline eGFR was 90 (IQR, 77-102) mL/min/1.73 m2. Each SD higher of pro-NT/NMN was associated with 9% higher odds of progressive eGFR decline (OR, 1.09; 95% CI, 1.00-1.20). There was no association observed with incident CKD (OR, 1.10; 95% CI, 0.96-1.27), incident albuminuria (OR, 1.08; 95% CI, 0.96-1.22), or incident kidney failure (OR, 1.10; 95% CI, 0.83-1.46). There were no differences in results by race or sex.
LIMITATIONS: Single measurement of pro-NT/NMN and limited generalizability.
CONCLUSIONS: Higher pro-NT/NMN was associated with progressive eGFR decline but no other manifestations of kidney disease incidence.