Angiotensin II–Mediated Left Ventricular Abnormalities in Chronic Kidney Disease

2012 ◽  
Vol 60 (5) ◽  
pp. 785-791 ◽  
Author(s):  
Veena Raizada ◽  
Dustin Hillerson ◽  
Jaya Sheela Amaram ◽  
Betty Skipper
2020 ◽  
Vol 71 (6) ◽  
pp. 194-204
Author(s):  
Teim Baaj ◽  
Ahmed Abu-Awwad ◽  
Mircea Botoca ◽  
Octavian Marius Cretu ◽  
Elena Ardeleanu ◽  
...  

Organ damages, which contribute to the overall cardiovascular risk of hypertensive patients, should be early detected, prevented and treated. The study evaluated organ damage in a hypertensive study group with chronic kidney disease (CKD), compared with a study group of hypertension without CKD. Albuminuria was present in 41.2% and reduced estimated glomerular filtration rate [60 ml/min/m2 was present in 72.5% of hypertensive with CKD. The comparison of organ damage revealed in the CKD group a statistical significant higher prevalence of organ damage as follows: intima-media thickness ]0.9 mm in 39.9% vs 10.5%, carotid plaques in 28.2% vs 12.6%, left ventricular hypertrophy in 39.9% vs 31%, ankle brachial index in 6.2% vs 3.5%. Early detection and treatment of additional cardiovascular risk factors as dyslipidaemia and hyperglycaemia, that have significant role in the pathogenesis of organ damage, contribute to the better prevention of cardiovascular and renal complications in hypertension with CKD.


Bone Research ◽  
2021 ◽  
Vol 9 (1) ◽  
Author(s):  
Guillaume Courbon ◽  
Connor Francis ◽  
Claire Gerber ◽  
Samantha Neuburg ◽  
Xueyan Wang ◽  
...  

AbstractBone-produced fibroblast growth factor 23 (FGF23) increases in response to inflammation and iron deficiency and contributes to cardiovascular mortality in chronic kidney disease (CKD). Neutrophil gelatinase-associated lipocalin (NGAL or lipocalin 2; LCN2 the murine homolog) is a pro-inflammatory and iron-shuttling molecule that is secreted in response to kidney injury and may promote CKD progression. We investigated bone FGF23 regulation by circulating LCN2. At 23 weeks, Col4a3KO mice showed impaired kidney function, increased levels of kidney and serum LCN2, increased bone and serum FGF23, anemia, and left ventricular hypertrophy (LVH). Deletion of Lcn2 in CKD mice did not improve kidney function or anemia but prevented the development of LVH and improved survival in association with marked reductions in serum FGF23. Lcn2 deletion specifically prevented FGF23 elevations in response to inflammation, but not iron deficiency or phosphate, and administration of LCN2 increased serum FGF23 in healthy and CKD mice by stimulating Fgf23 transcription via activation of cAMP-mediated signaling in bone cells. These results show that kidney-produced LCN2 is an important mediator of increased FGF23 production by bone in response to inflammation and in CKD. LCN2 inhibition might represent a potential therapeutic approach to lower FGF23 and improve outcomes in CKD.


2020 ◽  
Vol 41 (Supplement_2) ◽  
Author(s):  
N Landler ◽  
S Bro ◽  
B Feldt-Rasmussen ◽  
D Hansen ◽  
A.L Kamper ◽  
...  

Abstract Background The cardiovascular mortality of patients with chronic kidney disease (CKD) is 2–10 times higher than in the average population. Purpose To estimate the prevalence of abnormal cardiac function or structure across the stages CKD 1 to 5nonD. Method Prospective cohort study. Patients with CKD stage 1 to 5 not on dialysis, aged 30 to 75 (n=875) and age-/sex-matched controls (n=173) were enrolled consecutively. All participants underwent a health questionnaire, ECG, morphometric and blood pressure measurements. Blood and urine were analyzed. Echocardiography was performed. Left ventricle (LV) hypertrophy, dilatation, diastolic and systolic dysfunction were defined according to current ESC guidelines. Results 63% of participants were men. Mean age was 58 years (SD 12.6 years). Mean eGFR was 46.7 mL/min/1,73 m (SD 25.8) for patients and 82.3 mL/min/1,73 m (SD 13.4) for controls. The prevalence of elevated blood pressure at physical exam was 89% in patients vs. 53% in controls. Patients were more often smokers and obese. Left ventricular mass index (LVMI) was slightly, albeit insignificantly elevated at CKD stages 1 & 2 vs. in kontrols: 3.1 g/m2, CI: −0.4 to 6.75, p-value 0.08. There was no significant difference in LV-dilatation between patients and controls. Decreasing diastolic and systolic function was observed at CKD stage 3a and later: LVEF decreased 0.95% (CI: −1.5 to −0.2), GLS increased 0.5 (CI: 0.3 to 0.8), and OR for diastolic dysfunction increased 3.2 (CI 1.4 to 7.3) pr. increment CKD stage group. Conclusion In accordance to previous studies, we observe in the CPHCKD cohort study signs of early increase of LVMI in patients with CKD stage 1 & 2. Significant decline in systolic and diastolic cardiac function is apparent already at stage 3 CKD. Figure 1. Estimated GFR vs. GLS & histogram of GLS Funding Acknowledgement Type of funding source: Public hospital(s). Main funding source(s): The Capital Region of Denmark


Bone Research ◽  
2019 ◽  
Vol 7 (1) ◽  
Author(s):  
Corey Dussold ◽  
Claire Gerber ◽  
Samantha White ◽  
Xueyan Wang ◽  
Lixin Qi ◽  
...  

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
J. Radloff ◽  
N. Latic ◽  
U. Pfeiffenberger ◽  
C. Schüler ◽  
S. Tangermann ◽  
...  

AbstractC57BL/6 mice are known to be rather resistant to the induction of experimental chronic kidney disease (CKD) by 5/6-nephrectomy (5/6-Nx). Here, we sought to characterize the development of CKD and its cardiac and skeletal sequelae during the first three months after 5/6-Nx in C57BL/6 mice fed a calcium- and phosphate enriched diet (CPD) with a balanced calcium/phosphate ratio. 5/6-NX mice on CPD showed increased renal fibrosis and a more pronounced decrease in glomerular filtration rate when compared to 5/6-Nx mice on normal diet (ND). Interestingly, despite comparable levels of serum calcium, phosphate, and parathyroid hormone (PTH), circulating intact fibroblast growth factor-23 (FGF23) was 5 times higher in 5/6-Nx mice on CPD, relative to 5/6-Nx mice on ND. A time course experiment revealed that 5/6-Nx mice on CPD developed progressive renal functional decline, renal fibrosis, cortical bone loss, impaired bone mineralization as well as hypertension, but not left ventricular hypertrophy. Collectively, our data show that the resistance of C57BL/6 mice to 5/6-Nx can be partially overcome by feeding the CPD, and that the CPD induces a profound, PTH-independent increase in FGF23 in 5/6-Nx mice, making it an interesting tool to assess the pathophysiological significance of FGF23 in CKD.


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