Diagnostic utility of FGF-23 in mineral bone disorder during chronic kidney disease

Our data confirm that intact fibroblast growth factor 23 (iFGF-23) concentration is increased in patients with chronic kidney disease (CKD) and that it increases with disease progression (stages I-V). Therefore, iFGF-23 could be considered an early biomarker in the course of chronic kidney disease-mineral bone disorder (CKD-MBD), which has several aspects that make it potentially useful in clinical practice. The availability of an automated method for iFGF-23 assay may represent an added value in the management of the patient with CKD-MBD already from the early stages of the disease, before the increase of the routinely used laboratory parameters, 1-84 parathyroid hormone (PTH) and 25-OH-vitamin D (25-OH-vitD), which occur in more advanced stages of the disease.

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FGF-23 and Phosphate in Children with Chronic Kidney Disease: A Cross-Sectional Study in Kazakhstan

Medicina ◽

10.3390/medicina57010015 ◽

2020 ◽

Vol 57 (1) ◽

pp. 15

Author(s):

Altynay Balmukhanova ◽

Kairat Kabulbayev ◽

Harika Alpay ◽

Assiya Kanatbayeva ◽

Aigul Balmukhanova

Keyword(s):

Chronic Kidney Disease ◽

Kidney Disease ◽

Fibroblast Growth Factor 23 ◽

Cross Sectional Study ◽

Sectional Study ◽

Cross Sectional ◽

Ckd Stage ◽

Advanced Stages ◽

Fgf 23 ◽

Stage 1

Background and objectives: Chronic kidney disease (CKD) in children is a complex medical and social issue around the world. One of the serious complications is mineral-bone disorder (CKD-MBD) which might determine the prognosis of patients and their quality of life. Fibroblast growth factor 23 (FGF-23) is a phosphaturic hormone which is involved in the pathogenesis of CKD-MBD. The purpose of the study was to determine what comes first in children with CKD: FGF-23 or phosphate. Materials and Methods: This cross-sectional study included 73 children aged 2–18 years with CKD stages 1–5. We measured FGF-23 and other bone markers in blood samples and studied their associations. Results: Early elevations of FGF-23 were identified in children with CKD stage 2 compared with stage 1 (1.6 (1.5–1.8) pmol/L versus 0.65 (0.22–1.08), p = 0.029). There were significant differences between the advanced stages of the disease. FGF-23 correlated with PTH (r = 0.807, p = 0.000) and phosphate (r = 0.473, p = 0.000). Our study revealed that the elevated level of FGF-23 went ahead hyperphosphatemia and elevated PTH. Thus, more than 50% of children with CKD stage 2 had the elevating level of serum FGF-23, and that index became increasing with the disease progression and it achieved 100% at the dialysis stage. The serum phosphate increased more slowly and only 70.6% of children with CKD stage 5 had the increased values. The PTH increase was more dynamic. Conclusions: FGF-23 is an essential biomarker, elevates long before other markers of bone metabolism (phosphate), and might represent a clinical course of disease.

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FGF-23 and osteoprotegerin are independently associated with myocardial damage in chronic kidney disease stages 3 and 4. Another link between chronic kidney disease-mineral bone disorder and the heart

Nephrology Dialysis Transplantation ◽

10.1093/ndt/gfr316 ◽

2011 ◽

Vol 27 (2) ◽

pp. 727-733 ◽

Cited By ~ 30

Author(s):

M. L. Ford ◽

E. R. Smith ◽

L. A. Tomlinson ◽

P. K. Chatterjee ◽

C. Rajkumar ◽

...

Keyword(s):

Chronic Kidney Disease ◽

Kidney Disease ◽

Myocardial Damage ◽

Mineral Bone Disorder ◽

Bone Disorder ◽

Fgf 23 ◽

Disease Stages

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Intestinal Phosphorus Absorption in Chronic Kidney Disease

Nutrients ◽

10.3390/nu10101364 ◽

2018 ◽

Vol 10 (10) ◽

pp. 1364 ◽

Cited By ~ 5

Author(s):

Elizabeth Stremke ◽

Kathleen Hill Gallant

Keyword(s):

Chronic Kidney Disease ◽

Kidney Disease ◽

Fibroblast Growth Factor 23 ◽

Hormonal Changes ◽

Phosphorus Excretion ◽

Phosphorus Absorption ◽

Mineral Bone Disorder ◽

Bone Disorder ◽

Intestinal Phosphate Absorption ◽

Homeostatic Response

Chronic kidney disease (CKD) affects approximately 10% of adults worldwide. Dysregulation of phosphorus homeostasis which occurs in CKD leads to development of CKD-Mineral Bone Disorder (CKD-MBD) and contributes to increased morbidity and mortality in these patients. Phosphorus is regulated by multiple hormones (parathyroid hormone (PTH), 1,25-dihyxdroxyvitamin D (1,25D), and fibroblast growth factor 23 (FGF23)) and tissues (kidney, intestine, parathyroid glands, and bone) to maintain homeostasis. In health, the kidneys are the major site of regulation for phosphorus homeostasis. However, as kidney function declines, the ability of the kidneys to adequately excrete phosphorus is reduced. The hormonal changes that occur with CKD would suggest that the intestine should compensate for impaired renal phosphorus excretion by reducing fractional intestinal phosphorus absorption. However, limited studies in CKD animal models and patients with CKD suggest that there may be a break in this homeostatic response where the intestine fails to compensate. As many existing therapies for phosphate management in CKD are aimed at reducing absolute intestinal phosphorus absorption, better understanding of the factors that influence fractional and absolute absorption, the mechanism by which intestinal phosphate absorption occurs, and how CKD modifies these is a much-needed area of study.

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Fibroblast growth factor 23 (FGF-23) and chronic kidney disease in children

International Professional Journal Medicine ◽

10.31082/1728-452x-2020-221-222-11-12-43-48 ◽

2021 ◽

Vol 11-12 (221-222) ◽

pp. 43-48

Author(s):

Altynay Balmukhanova ◽

◽

Kairat Kabulbayev ◽

Assiya Kanatbayeva ◽

◽

...

Keyword(s):

Chronic Kidney Disease ◽

Growth Factor ◽

Kidney Disease ◽

Fibroblast Growth Factor ◽

Fibroblast Growth Factor 23 ◽

Healthy Children ◽

Fibroblast Growth ◽

Mineral Bone Disorder ◽

Fgf 23 ◽

Stage 1

Chronic kidney disease (CKD) in children is a complex medical and social problem in healthcare. One of the serious complications is mineral bone disorder (MBD), the pathogenesis of which is related to a new biomarker of bone origin - fibroblast growth factor 23 (FGF-23). The aim. To study the features of fibroblast growth factor 23 (FGF-23) in children with chronic kidney disease. Material and methods. A cross-sectional study was carried out on 73 children with CKD and 14 healthy children. Inclusion criteria: chronic kidney disease stage 1-5, written informed consent of the participants. The exclusion criteria: tubulopathy, infectious and inflammatory processes, oncological diseases, kidney transplant, condition after surgery, taking glucocorticosteroids, calcium and vitamin D drugs. We took fasting blood samples of participants and carried out an enzyme-linked immunosorbent assay in order determine the level of FGF-23 (Biomedica Medizinprodukte GmbH, Austria). The obtained data were analyzed using IBM SPSS, version 22 (New York, USA). Results and discussion. In healthy children, the median (Q1-Q3) level of FGF-23 in serum was 0.65 (0.22-0.98) pmol/l, in patients with stage 1 CKD it was 0.65 (0.22-1.08) pmol/l. At stage 2, the level of FGF-23 significantly increased in comparison with healthy individuals and with patients of stage 1, p≤0.05. Further, there is a gradual increase by stages, p≤0.05. Thus, in stage 3 patients, the median FGF-23 value was 1.9 (1.15-3.5) pmol/l, at stage 4 - 3.55 (2.48-6.35) pmol/l, at 5 stages - 14 (7.5-18.75) pmol/l. As a percentage, there were 7.1% of patients at the stage 1 with increased levels of phosphatonin, at stage 2 - 53.3%, at stage 3 - 69.2%, respectively. At stages 4 and 5, absolutely 100% of patients had high levels of FGF-23. At the same time, FGF-23 did not depend on gender, age, birth weight and type of renal replacement therapy at stage 5, p>0.05. Conclusions. Thus, in our study, we determined the features of changes FGF-23 in serum in children at various stages of CKD. The obtained results allow us to consider FGF-23 as a predictor of the clinical course of CKD. Keywords: fibroblast growth factor 23, phosphatonin, pediatric nephrology, chronic kidney disease, mineral-bone disorder.

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Potential effect of pharmaceutical care to improve outcomes in patients with chronic kidney disease-mineral bone disorder in Sulaimani dialysis centers

Al Mustansiriyah Journal of Pharmaceutical Sciences ◽

10.32947/ajps.20.01.0442 ◽

2020 ◽

pp. 82-94

Keyword(s):

Chronic Kidney Disease ◽

Kidney Disease ◽

Pharmaceutical Care ◽

Biochemical Parameters ◽

Positive Impact ◽

Potential Effect ◽

Care Group ◽

Mineral Bone Disorder ◽

Bone Disorder

Objective: the present study was aimed to evaluate the role of pharmaceutical services in improving the outcome of mineral bone disorder in patients with advanced chronic kidney disease. Methodology: One hundred and twenty patients with chronic kidney disease-mineral bone disorder (CKD-MBD) screened for eligibility, seventy-six patients enrolled in the study and randomly allocated into two groups: pharmaceutical care and usual care, both groups interviewed by the pharmacist using specific questionnaire for assessing the quality of life (QoL). All the drug related problems (DRPs) including drug-drug interactions (DDIs) were recorded by the pharmacist. Blood samples were collected and utilized for analyzing the levels of vitamin D, phosphorous, calcium, albumin and parathyroid hormone at baseline and three months after. The pharmaceutical care group received all the educations about their medications and how to minimize DRPs; improve the QoL. Additionally, the pharmaceutical intervention included correcting the biochemical parameters. Results: Pharmaceutical care significantly improved patients QoL and minimized DRPs and DDIs. It was also effective in improving the biochemical parameters. Conclusion: Pharmaceutical care has a positive impact on improving the outcome of patients with CKD-MBD through attenuating DRPs, improving the biochemical parameters and the QoL.

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