scholarly journals Matrix Gla protein is an independent predictor of both intimal and medial vascular calcification in chronic kidney disease

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Armand M. G. Jaminon ◽  
Lu Dai ◽  
Abdul Rashid Qureshi ◽  
Pieter Evenepoel ◽  
Jonaz Ripsweden ◽  
...  

AbstractMatrix Gla protein (MGP) is a potent inhibitor of vascular calcification (VC) and requires carboxylation by vitamin K to exert calcification inhibition. Chronic kidney disease (CKD) patients undergo early vascular aging often involving extensive VC. The present cross-sectional study investigated the association between circulating dp-ucMGP levels, MGP expression in vascular tissue and MGP polymorphisms. In 141 CKD stage 5 patients, CAC score was significantly increased in the highest tertile of dp-ucMGP (p = 0.002), and a high medial VC score was associated with elevated dp-ucMGP levels. MGP vascular expression was associated with increased circulating dp-ucMGP and CAC scores. MGP SNP analysis revealed that patients homozygous for the C allele of the rs1800801 variant had a higher CAC score (median 15 [range 0–1312]) compared to patients carrying a T allele (median 0 [range 0–966] AU). These results indicate that plasma levels of dp-ucMGP are an independent predictor of increased VC in CKD5 patients and correlate with both higher CAC scores and degree of medial calcification. Additionally, high vascular expression of MGP was associated with higher CAC scores and plasma dp-ucMGP levels. Taken together, our results support that MGP is involved in the pathogenesis of VC.

PLoS ONE ◽  
2021 ◽  
Vol 16 (2) ◽  
pp. e0247623
Author(s):  
Lu Dai ◽  
Longkai Li ◽  
Helen Erlandsson ◽  
Armand M. G. Jaminon ◽  
Abdul Rashid Qureshi ◽  
...  

Patients with chronic kidney disease (CKD) suffer from vitamin K deficiency and are at high risk of vascular calcification (VC) and premature death. We investigated the association of functional vitamin K deficiency with all-cause mortality and whether this association is modified by the presence of VC in CKD stage 5 (CKD G5). Plasma dephosphorylated-uncarboxylated matrix Gla-protein (dp-ucMGP), a circulating marker of functional vitamin K deficiency, and other laboratory and clinical data were determined in 493 CKD G5 patients. VC was assessed in subgroups by Agatston scoring of coronary artery calcium (CAC) and aortic valve calcium (AVC). Backward stepwise regression did not identify dp-ucMGP as an independent determinant of VC. During a median follow-up of 42 months, 93 patients died. Each one standard deviation increment in dp-ucMGP was associated with increased risk of all-cause mortality (sub-hazard ratio (sHR) 1.17; 95% confidence interval, 1.01–1.37) adjusted for age, sex, cardiovascular disease, diabetes, body mass index, inflammation, and dialysis treatment. The association remained significant when further adjusted for CAC and AVC in sub-analyses (sHR 1.22, 1.01–1.48 and 1.27, 1.01–1.60, respectively). In conclusion, functional vitamin K deficiency associates with increased mortality risk that is independent of the presence of VC in patients with CKD G5.


Nutrients ◽  
2021 ◽  
Vol 13 (7) ◽  
pp. 2453
Author(s):  
Ana M Pinto ◽  
Helen L MacLaughlin ◽  
Wendy L Hall

Low heart rate variability (HRV) is independently associated with increased risk of sudden cardiac death (SCD) and all cardiac death in haemodialysis patients. Long chain n-3 polyunsaturated fatty acids (LC n-3 PUFA) may exert anti-arrhythmic effects. This study aimed to investigate relationships between dialysis, sleep and 24 h HRV and LC n-3 PUFA status in patients who have recently commenced haemodialysis. A cross-sectional study was conducted in adults aged 40–80 with chronic kidney disease (CKD) stage 5 (n = 45, mean age 58, SD 9, 20 females and 25 males, 39% with type 2 diabetes). Pre-dialysis blood samples were taken to measure erythrocyte and plasma fatty acid composition (wt % fatty acids). Mean erythrocyte omega-3 index was not associated with HRV following adjustment for age, BMI and use of β-blocker medication. Higher ratios of erythrocyte eicosapentaenoic acid (EPA) to docosahexaenoic acid (DHA) were associated with lower 24 h vagally-mediated beat-to-beat HRV parameters. Higher plasma EPA and docosapentaenoic acid (DPAn-3) were also associated with lower sleep-time and 24 h beat-to-beat variability. In contrast, higher plasma EPA was significantly related to higher overall and longer phase components of 24 h HRV. Further investigation is required to investigate whether patients commencing haemodialysis may have compromised conversion of EPA to DHA, which may impair vagally-mediated regulation of cardiac autonomic function, increasing risk of SCD.


Medicina ◽  
2020 ◽  
Vol 57 (1) ◽  
pp. 15
Author(s):  
Altynay Balmukhanova ◽  
Kairat Kabulbayev ◽  
Harika Alpay ◽  
Assiya Kanatbayeva ◽  
Aigul Balmukhanova

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.


2018 ◽  
Vol 2 (1) ◽  
pp. 9
Author(s):  
Kadek G Pebriantari ◽  
IGA Puja Astuti Dewi

ABSTRAKLatar Belakang. Hemodialisis aman dan bermanfaat untuk pasien, namun bukan berarti tanpa efek samping. Berbagai komplikasi dapat terjadi pada saat pasien menjalani hemodialisis. Komplikasi ini dapat mengakibatkan timbulnya masalah baru yang lebih kompleks, yaitu dapat mempengaruhi kualitas hidup bahkan menimbulkan kematianTujuan. Untuk mengetahui hubungan komplikasi intra hemodialisis dengan kualitas hidup  pada pasien Chronic Kidney Disease (CKD) Stage V yang menjalani hemodialisis.Metode. Jenis penelitian adalah analitik korelasional dengan pendekatan cross-sectional. Sampel pada penelitian ini berjumlah 166 responden diambil dengan teknik non probability sampling yaitu total sampling. Pengumpulan data menggunakan kuesioner dan lembar observasi,dianalisa dengan uji non parametric (Chi Square).Hasil. Rata – rata jumlah komplikasi intra hemodialisis adalah kurang dari dua komplikasi (sedikit komplikasi). Hipertensi intra hemodialisis adalah komplikasi terbanyak yang ditemukan (52,3%). Kejang dan penurunan kesadaran merupakan komplikasi yang tidak pernah dialami oleh responden selama penelitian (0%).Kualitas hidup pasien CKD stage V yang menjalani HD di BRSU Tabanan masuk dalam kategori kualitas baik. Hasil uji statistik diperoleh nilai p < 0.001 bahwa ada hubungan yang signifikan antara komplikasi intra hemodialisis dengan  kualitas hidup pada pasien yang menjalani HD. Dari hasil analisis diperoleh pula nilai OR = 0,005, artinya responden yang memiliki banyak komplikasi mempunyai peluang 0,005 kali memiliki kualitas hidup buruk dibanding responden yang memiliki sedikit komplikasi.Kesimpulan. Ada hubungan yang signifikan antara komplikasi intra hemodialisis dengan  kualitas hidup pada pasien yang menjalani hemodialisis.KataKunci: Komplikasi Intra Hemodialisis, Kualitas Hidup, Hemodialisis ABSTRACTBackground: Hemodialysis is safe and beneficial to the patient. However, there are various complications may occur when the patients undergo hemodialysis. These complications can lead to the emergence of new problems which are more complex and affect to the quality of life and even cause death.Aim: To determine the relationship of intra hemodialysis complications with quality of life in patients with Chronic Stage Kidney Disease (CKD) Stage V who undergo hemodialysis.Method:This study employed correlational analytic design with cross-sectional approach. To conduct this study, there were 166 respondents recruited as the sample by using probability sampling with total sampling technique. The data were collected by using questionnaire and observation sheet. Further, the data were analyzed by non-parametric test (Chi Square).Finding: The findings indicated that the average number of intra hemodialysis complications is less than two complications (few complications). There were found that 52.3% patients who had complication of hypertension intra hemodialysis. On the other hand, there was 0%of the respondents experienced seizures and decreased awareness complications during the study. The quality of life of CKD stage V patients underwenthemodialysis at BRSU Tabanan is categorized as good quality. The statistical test obtained p <0.001, it meant that there was a significant relationship between intra hemodialysis complications with quality of life in patients underwenthemodialysis. It also found that the analysis results of OR = 0.005, it meant that respondents who had many complications have a chance of 0.005 times experienced poor quality of life rather than the patients who had few complications.Conclusion: There is a significant relationship between intra hemodialysis complications and quality of life in patients undergo hemodialysis. Keywords: Complications of Intra Hemodialysis, Quality of Life, Hemodialysis


2020 ◽  
pp. BJGP.2020.0871
Author(s):  
Clare Elizabeth MacRae ◽  
Stewart Mercer ◽  
Bruce Guthrie

Background: Many drugs should be avoided or require dose-adjustment in chronic kidney disease (CKD). Previous estimates of potentially inappropriate prescribing rates have been based on data on a limited number of drugs and mainly in secondary care settings. Aim: To determine the prevalence of contraindicated and potentially inappropriate primary care prescribing in a complete population of people with CKD. Method: Cross-sectional study of prescribing patterns in a complete geographical population of people with CKD defined using laboratory data. Drugs were organised by British National Formulary advice. Contraindicated (CI) drugs: “avoid”. Potentially high risk (PHR) drugs: “avoid if possible”. Dose inappropriate (DI) drugs: dose exceeded recommended maximums. Results: 28,489 people with CKD were included in analysis, of whom 70.0% had CKD 3a, 22.4% CKD 3b, 5.9% CKD 4, and 1.5% CKD 5. 3.9% (95%CI 3.7-4.1) of people with CKD stages 3a-5 were prescribed one or more CI drug, 24.3% (95%CI 23.8-24.8) PHR drug, and 15.2% (95% CI 14.8-15.62) DI drug. CI drugs differed in prevalence by CKD stage, and were most commonly prescribed in CKD stage 4 with a prevalence of 36.0% (95%CI 33.7–38.2). PHR drugs were commonly prescribed in all CKD stages ranging from 19.4% (95%CI 17.6-21.3) in stage 4 to 25.1% (95%CI 24.5–25.7) in stage 3b. DI drugs were most commonly prescribed in stage 4, 26.4% (95%CI 24.3-28.6). Conclusion: Potentially inappropriate prescribing is common at all stages of CKD. Development and evaluation of interventions to improve prescribing safety in this high-risk populations are needed.


Author(s):  
Agri Febria Sari ◽  
Rikarni Rikarni ◽  
Deswita Sari

Reticulocyte hemoglobin equivalent (RET-He) represents hemoglobin content in reticulocyte. Reticulocyte hemoglobin equivalent test can be used to asses iron status of chronic kidney disease (CKD). Iron deficiency happens in 40% CKD and could lead to anemia manifestation. Level of RET-He gives real-time assesment of iron availability for hemoglobin production and the level will getting lower when iron storage for erythropoiesis decreasing. Reticulocyte hemoglobin equivalent is more stabil than feritin and transferin saturation in assessing iron status. Aim of this study is to determine RET-He level in patients with CKD stage IV and V. This study is  a cross sectional descripstive study. Subjects were 96 CKD stage IV and V patients that met inclusion and exclusion criterias. Subjects conducted blood tests at Central Laboratory Installation Dr. M. Djamil Hospital Padang from July to September 2020. Examination of RET-He level was analyzed by Sysmex XN-1000 flowcytometry fluorescense method. Data was presented in frequency distribution table. The RET-He level below cutoff (<29,2 pg) indicates the need for iron suplementation therapy for CKD stage IV and V patients. Samples with RET-He level below cutoff were 48 (50%) and 48 (50%) were above cutoff.


2019 ◽  
Vol 13 (2) ◽  
pp. 253-260 ◽  
Author(s):  
Ivano Baragetti ◽  
Ilaria De Simone ◽  
Cecilia Biazzi ◽  
Laura Buzzi ◽  
Francesca Ferrario ◽  
...  

Abstract Background Guidelines indicate that a low-protein diet (LPD) delays dialysis in severe chronic kidney disease (CKD). We assessed the value of these guidelines by performing a retrospective analysis in our renal clinical practice. Methods The analysis was performed from 1 January 2010 to 31 March 2018 in 299 CKD Stage 4 patients followed for 70 months in collaboration with a skilled nutritionist. The patients included 43 patients on a controlled protein diet (CPD) of 0.8 g/kg/day [estimated glomerular filtration rate (eGFR) 20–30 mL/min/1.73 m2 body surface (b.s.)], 171 patients on an LPD of 0.6 g/kg/day and 85 patients on an unrestricted protein diet (UPD) who were not followed by our nutritionist (LPD and UPD, eGFR &lt;20 mL/min/1.73 m2 b.s.). Results eGFR was higher in CPD patients than in UPD and LPD patients (21.9 ± 7.4 mL/min/1.73 m2 versus 17.6 ± 8.00 mL/min/1.73 m2 and 17.1 ± 7.5 mL/min/1.73 m2; P = 0.008). The real daily protein intake was higher in UPD patients than in LPD and CDP patients (0.80 ± 0.1 g/kg/day versus 0.6 ± 0.2 and 0.63 ± 0.2 g/kg/day; P = 0.01). Body mass index (BMI) was stable in the LPD and CPD groups but decreased from 28.5 ± 4.52 to 25.4 ± 3.94 kg/m2 in the UPD group (P &lt; 0.001). The renal survival of UPD, LPD and CPD patients was 47.1, 84.3 and 90.7%, respectively, at 30 months (P &lt; 0.001), 42.4, 72.0 and 79.1%, respectively, at 50 months (P &lt; 0.001) and 42.4, 64.1 and 74.4%, respectively, at 70 months (P &lt; 0.001). The LPD patients started dialysis nearly 24 months later than the UPD patients. Diet was an independent predictor of dialysis [−67% of RR reduction (hazard ratio = 0.33; confidence interval 0.22–0.48)] together with a reduction in BMI. Conclusions An LPD recommended by nephrologists in conjunction with skilled dietitians delays dialysis and preserves nutritional status in severe CKD.


2020 ◽  
Vol 35 (Supplement_3) ◽  
Author(s):  
Alexandros Kourtinos ◽  
Kostas Pappas ◽  
Lazaros Belbasis ◽  
ANILA DUNI ◽  
Karolos Pavlos Rapsomanikis ◽  
...  

Abstract Background and Aims The structure and function of the left ventricle (LV) are affected since the early stages of chronic kidney disease (CKD). Our cross-sectional study aimed to estimate the echocardiographic indices of the LV diastolic function and the evaluation of their potential correlation with indices of kidney injury in patients with CKD, before initiation of renal replacement therapy. Method 99 patients with CKD (stage 2 CKD: 31 patients (27%), stage 3 CKD: 47 patients (40.9%) and stage 4 CKD: 37 patients (32.1%)) were enrolled in the study. Anthropometric data, indices of renal function (eGFR-CKD-EPI, urinary protein excretion in mg/24h), biochemical laboratory parameters, comorbidities [hypertension (HT), diabetes mellitus (DM), coronary heart disease (CAD)] and echocardiographic indices of LV diastolic function were recorded. In specific, left atrial (LA) dimensions were measured in M-Mode and were expressed both as absolute values in mm as well as indexed to body surface area ((BSA) and expressed as the LA index in mm/m2. The study sample, after taking into account patient gender, was further divided into separate groups according to the presence or not of LA dilation. Results The average patient age was 62 +/- 13 years and average eGFR (CKD-EPI) was 44.1+/-21.4 ml/min/1.73m2. With regard to comorbidities, 59.3% of the sample population had arterial hypertension, 24.3% had diabetes mellitus and 10.4% had known coronary artery disease. Regarding anti-hypertensive and hypolipidemic treatment, 22.6% of the patients were on ARB and 24% on ACEi, 51.3% on CCB, 29.6% on β-blockers, 37.4% on diuretics and 28.7% of the patients were receiving statin treatment. 28.2% of the patients had dilated LA in terms of absolute value and 13.8% had dilated LA following indexing to BSA (LA index). A positive correlation was observed between the LA size and age (p=0.001), BMI (p=0.041), uric acid levels (p=0.022), PTH (p=0.029), fibrinogen (p=0.035), LV mass (p=0.006) and LV mass/BSA (p=0.005), whereas a negative correlation was observed with serum LDL (p=0.027). Additionally, there was observed a negative correlation of LA index with eGFR (p=0.05), as well as an inverse relationship between LA index and PTH (p=0.012), age (p=0.004), BMI (p=0.037) and LV mass/BSA (p=0.005). No significant correlations between LA size and LA index with proteinuria or with co-morbidities (DM, HT, CAD) were observed. Conclusion In a population of patients with stage 2-4 CKD, LA size correlated to indices of CKD. Larger studies are required in order to further confirm these correlations.


2011 ◽  
Vol 51 (4) ◽  
pp. 192 ◽  
Author(s):  
Eka Laksmi Hidayati ◽  
Partini Pudjiati Trihono

Background Chronic kidney disease (CKD) in children is a potentially fatal disease if left untreated. Early detection and treatment are important to slow progression to end-stage renal disease requiring dialysis.Objective We aimed to find characteristics of CKD patients at admission and evaluate factors associated with end-stage CKD (stage 5).Methods Our cross-sectional study was based on medical records of CKD patients aged less than 18 years in Cipto Mangunkusumo Hospital, Jakarta, from January 2007 to December 2009. Diagnosis and stages of CKD were based on the Kidney Disease Outcomes Quality Initiative (K/DOQI) criteria. Data on disease etiology, symptoms, nutritional status and laboratory tests were collected. Bivariate and multivariate analyses were performed to examine the association between end-stage CKD and its possible risk factors.Results Of the 142 cases eligible for analysis, 55% were boys. Subjects’ median age was 73.5 months (interquartile range of 23.5-122.5 months). Edema and recurrent fever were the two most frequent symptoms of CKD if diagnosed at stages 2-4, while breathlessness was the most frequent symptom of CKD if diagnosed at stage 5. The most common etiologies were glomerulonephritis (49.3%) and anomalies of the kidney and urinary tract (32.4%). Of our CKD subjects, 21.8% were in stage 5. Independent predictors of stage 5 CKD at presentation were hypertension (OR 3.88; 95% CI 1.17 to 12.87; P=0.026), urea level > 60 mg/dL (OR 39.11; 95%CI 4.86 to 314.74; P<0.001) and non-glomerulonephritis as the etiology (OR 6.51; 95%CI 2.12 to 19.92; P<0.001).Conclusion Glomerular disease was the most common cause of CKD in our study. Stage 5 CKD was present in 21.8% of subjects at admission and could be predicted by the presence of hypertension, high serum urea level, and non-glomerular disease as the etiology.


Nutrients ◽  
2019 ◽  
Vol 11 (1) ◽  
pp. 152 ◽  
Author(s):  
Yi-Chou Hou ◽  
Chien-Lin Lu ◽  
Cai-Mei Zheng ◽  
Ruei-Ming Chen ◽  
Yuh-Feng Lin ◽  
...  

Vascular calcification is a critical complication in patients with chronic kidney disease (CKD) because it is predictive of cardiovascular events and mortality. In addition to the traditional mechanisms associated with endothelial dysfunction and the osteoblastic transformation of vascular smooth muscle cells (VSMCs), the regulation of calcification inhibitors, such as calciprotein particles (CPPs) and matrix vesicles plays a vital role in uremic vascular calcification in CKD patients because of the high prevalence of vitamin K deficiency. Vitamin K governs the gamma-carboxylation of matrix Gla protein (MGP) for inhibiting vascular calcification, and the vitamin D binding protein receptor is related to vitamin K gene expression. For patients with chronic kidney disease, adequate use of vitamin D supplements may play a role in vascular calcification through modulation of the calciprotein particles and matrix vesicles (MVs).


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