scholarly journals Fibroblast Growth Factor-23, Heart Failure Risk, and Renin–Angiotensin–Aldosterone-System Blockade in Hypertension: The MESA Study

2018 ◽  
Vol 32 (1) ◽  
pp. 18-25 ◽  
Author(s):  
Ehimare Akhabue ◽  
Thanh-Huyen T Vu ◽  
Anand Vaidya ◽  
Erin D Michos ◽  
Ian H de Boer ◽  
...  

Abstract BACKGROUND Higher fibroblast growth factor-23 (FGF23) concentrations have been found to be associated with incident heart failure (HF). Experimental data suggest FGF23 directly stimulates myocardial hypertrophy. FGF23 may also enhance renin–angiotensin–aldosterone system activity. Whether FGF23 is associated with increased HF risk in populations with hypertension and whether this association is weaker in the presence of angiotensin-converting enzyme inhibitor (ACEI) or angiotensin II receptor blocker (ARB) therapy is unknown. METHODS We studied 2,858 adults with hypertension free of cardiovascular disease at baseline (65.6 ± 9.5 years, 46.2% male) participating in the Multi-Ethnic Study of Atherosclerosis (MESA). We investigated the association of baseline serum intact FGF23 with incident HF over a 14-year median follow-up and whether ACEI/ARB therapy modified this risk. We also investigated the relationship of FGF23 with aldosterone and plasma renin activity in a random subgroup of the entire MESA cohort with available assays (N = 1,642). RESULTS In adjusted Cox regression models, higher FGF23 was associated with a 63% greater hazard of incident HF (hazard ratio: 1.63, 95% confidence interval: [1.13–2.36] per 1-unit increase in log-transformed FGF23), which persisted after exclusion of participants with chronic kidney disease (hazard ratio: 1.94 [1.10–3.43]). There was no heterogeneity by ACEI/ARB use (Pinteraction = 0.438). FGF23 improved model fit over covariables (likelihood ratio χ2 = 6.67, P = 0.010). In multivariable linear regression models, there was no association between FGF23 and aldosterone or plasma renin activity. CONCLUSIONS Higher FGF23 concentrations are associated with a significantly increased risk of HF in hypertension but this risk did not differ by ACEI/ARB treatment status. FGF23 may be a useful biomarker for HF risk in hypertensive populations.

1999 ◽  
Vol 162 (1) ◽  
pp. 21-29 ◽  
Author(s):  
P Vendeira ◽  
D Pignatelli ◽  
D Neves ◽  
MM Magalhaes ◽  
MC Magalhaes ◽  
...  

Adrenocortical regeneration after adrenal autotransplantation provides a model for the study of local autocrine/paracrine mechanisms involved in the growth and differentiation of the adrenal cortex. To study the possible involvement of some growth factors, namely basic fibroblast growth factor (bFGF, FGF-2) and insulin-like growth factor I (IGF-I), in cell differentiation, immunohistochemical and ultrastructural studies were carried out on adrenal autotransplants in adult male rats. To distinguish between fasciculata and glomerulosa-like cells with accuracy, tissue sections were immunostained with IZAb, which recognizes the inner zone antigen (IZAg) present in fasciculata and reticularis cells but absent from the glomerulosa, and by electron microscopy. IGF-I-treated animals exhibited a clear glomerulosa-like zone that was devoid of IZAb immunostaining. In this outer subcapsular area, ultrastructural examination showed cells containing mitochondria with irregular cristae resembling those of the fetal or immature glomerulosa cells. In contrast, no significant morphological differences were observed in bFGF-treated animals when compared with those from saline-treated controls, in both of which, IZAb immunostaining occurred in almost all adrenocortical cells, with no clear zonation or glomerulosa, as seen in the intact animal. Plasma aldosterone and corticosterone concentrations were lower in autotransplanted control animals than in intact controls, although plasma renin activities were similar. IGF-I treatment significantly increased aldosterone concentrations, whereas corticosterone and plasma renin activity were reduced. bFGF infusion further reduced plasma aldosterone, although plasma renin activity and corticosterone were unaffected. These results suggest that the two growth factors have different effects on zonal differentiation and function in the autotransplanted gland. In particular, bFGF, by reducing glomerulosa function, appears partly to replicate the actions of ACTH in normal animals. In contrast, IGF-I enhances the glomerulosa secreting phenotype and diminishes that of the fasciculata/reticularis, possibly replicating the actions of angiotensin II or a low sodium diet.


2021 ◽  
Vol 22 (7) ◽  
pp. 3321
Author(s):  
Mark F. McCarty

Although well documented drug therapies are available for the management of ventricular hypertrophy (VH) and heart failure (HF), most patients nonetheless experience a downhill course, and further therapeutic measures are needed. Nutraceutical, dietary, and lifestyle measures may have particular merit in this regard, as they are currently available, relatively safe and inexpensive, and can lend themselves to primary prevention as well. A consideration of the pathogenic mechanisms underlying the VH/HF syndrome suggests that measures which control oxidative and endoplasmic reticulum (ER) stress, that support effective nitric oxide and hydrogen sulfide bioactivity, that prevent a reduction in cardiomyocyte pH, and that boost the production of protective hormones, such as fibroblast growth factor 21 (FGF21), while suppressing fibroblast growth factor 23 (FGF23) and marinobufagenin, may have utility for preventing and controlling this syndrome. Agents considered in this essay include phycocyanobilin, N-acetylcysteine, lipoic acid, ferulic acid, zinc, selenium, ubiquinol, astaxanthin, melatonin, tauroursodeoxycholic acid, berberine, citrulline, high-dose folate, cocoa flavanols, hawthorn extract, dietary nitrate, high-dose biotin, soy isoflavones, taurine, carnitine, magnesium orotate, EPA-rich fish oil, glycine, and copper. The potential advantages of whole-food plant-based diets, moderation in salt intake, avoidance of phosphate additives, and regular exercise training and sauna sessions are also discussed. There should be considerable scope for the development of functional foods and supplements which make it more convenient and affordable for patients to consume complementary combinations of the agents discussed here. Research Strategy: Key word searching of PubMed was employed to locate the research papers whose findings are cited in this essay.


2018 ◽  
Vol 32 (1) ◽  
pp. 15-17 ◽  
Author(s):  
Nuria Garcia-Fernandez ◽  
Javier Lavilla ◽  
Paloma L Martín ◽  
Gregorio Romero-González ◽  
Arantxa González ◽  
...  

Author(s):  
Shejuti Paul ◽  
Mandy Wong ◽  
Ehimare Akhabue ◽  
Rupal C. Mehta ◽  
Holly Kramer ◽  
...  

Background Higher circulating fibroblast growth factor 23 (FGF23) associates with greater risk of cardiovascular disease (CVD) and mortality in older adults. The association of FGF23 with cardiovascular outcomes in younger populations has been incompletely explored. Methods and Results We measured C‐terminal FGF23 (cFGF23) and intact FGF23 (iFGF23) in 3151 middle‐aged adults (mean age, 45±4) who participated in the year 20 examination of the CARDIA (Coronary Artery Risk Development in Young Adults) study. We used separate Cox proportional hazards models to examine the associations of cFGF23 and iFGF23 with incident CVD and mortality, adjusting models sequentially for sociodemographic, clinical, and laboratory factors. A total of 157 incident CVD events and 135 deaths occurred over a median 7.6 years of follow‐up (interquartile range, 4.1–9.9). In fully adjusted models, there were no statistically significant associations of FGF23 with incident CVD events (hazard ratio per doubling of cFGF23: 1.14, 95%CI 0.97,1.34; iFGF23: 0.76, 95%CI 0.57,1.02) or all‐cause mortality (hazard ratio per doubling of cFGF23, 1.17; 95% CI, 1.00–1.38; iFGF23, 0.86; 95% CI, 0.64–1.17). In analyses stratified by CVD subtypes, higher cFGF23 was associated with greater risk of heart failure hospitalization (hazard ratio per doubling of cFGF23, 1.52; 95% CI, 1.18–1.96) but not coronary heart disease or stroke, whereas iFGF23 was not associated with CVD subtypes in any model. Conclusions In middle‐aged adults with few comorbidities, higher cFGF23 and iFGF23 were not independently associated with greater risk of CVD events or death. Higher cFGF23 was independently associated with greater risk of heart failure hospitalization.


Circulation ◽  
2014 ◽  
Vol 129 (suppl_1) ◽  
Author(s):  
Robin Haring ◽  
Ramachandran S Vasan ◽  
Henri Wallaschofski ◽  
Lisa Sullivan ◽  
Danielle Enserro

Objective: To investigate the association of fibroblast growth factor 23 (FGF23) with incident cardiovascular disease (CVD) and mortality risk in the general population. Methods: We evaluated 3,236 Framingham Offspring and Omni Study participants to examine the associations of serum FGF23 (measured by immunoassay) with 10-year incident CVD (N = 2,823) and all-cause mortality (N = 3,223) using multivariable Cox regression models. Results: During a median follow-up time of 10.8 years (Q1, 10.0; Q3, 11.4), 347 participants developed new-onset CVD and 412 died. Age- and sex-adjusted Cox regression models revealed a positive association of FGF23 with incident CVD (hazard ratio (HR) per unit increase in logFGF23: 1.43, 95% confidence interval (CI) 1.11-1.84) and all-cause mortality (HR 2.26, 95% CI, 1.86-2.75). After multivariable adjustment, the association of FGF23 with incident CVD was rendered non-significant (HR 1.12, 95% CI 0.86-1.46), whereas the positive association of FGF23 with all-cause mortality was maintained (HR: 1.87, 95% CI: 1.52 - 2.29). Analyses modeling FGF23 quartiles yielded similar findings (multivariable-adjusted HR Q4 vs. Q1 for incident CVD: 1.17, 95% CI: 0.87 - 1.59; for death: 1.87, 95% CI: 1.38 - 2.53). Conclusion: In our large community-based sample, serum FGF23 shows an independent positive association with all-cause mortality, but not with incident CVD risk.


2020 ◽  
Vol 7 (6) ◽  
pp. 4089-4099
Author(s):  
Prathap Kanagala ◽  
Jayanth R. Arnold ◽  
Jamal N. Khan ◽  
Anvesha Singh ◽  
Gaurav S. Gulsin ◽  
...  

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