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Uremic cardiomyopathy

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https://www.readbyqxmd.com/read/29624739/hemodialysis-induced-cardiovascular-disease
#1
REVIEW
Shadi Ahmadmehrabi, W H Wilson Tang
More than half of all deaths among end stage renal disease (ESRD) patients are due to cardiovascular disease (CVD). Cardiovascular changes secondary to renal dysfunction, including fluid overload, uremic cardiomyopathy, secondary hyperparathyroidism, anemia, altered lipid metabolism, and accumulation of gut microbiota-derived uremic toxins like trimethylamine N-oxidase, contribute to the high risk for CVD in the ESRD population. In addition, conventional hemodialysis (HD) itself poses myocardial stress and injury on the already compromised cardiovascular system in uremic patients...
April 6, 2018: Seminars in Dialysis
https://www.readbyqxmd.com/read/29366457/diffuse-myocardial-interstitial-fibrosis-and-dysfunction-in-early-chronic-kidney-disease
#2
Manvir Kaur Hayer, Anna Marie Price, Boyang Liu, Shanat Baig, Charles Joseph Ferro, Jonathan Nicholas Townend, Richard Paul Steeds, Nicola Catherine Edwards
Patients with chronic kidney disease (CKD) have a disproportionately high risk of cardiovascular (CV) morbidity and mortality from the very early stages of CKD. This excess risk is believed to be the result of myocardial disease commonly termed uremic cardiomyopathy (UC). It has been suggested that interstitial myocardial fibrosis progresses with advancing kidney disease and may be the key mediator of UC. This longitudinal study reports data on the myocardial structure and function of 30 patients with CKD with no known cardiovascular disease and healthy controls...
March 1, 2018: American Journal of Cardiology
https://www.readbyqxmd.com/read/29318961/targeting-na-k-atpase-signaling-a-new-approach-to-control-oxidative-stress
#3
Jiang Liu, Megan N Lilly, Joseph I Shapiro
Renal and cardiac function are greatly affected by chronic oxidative stress which can cause many pathophysiological states. The Na/K-ATPase is well-described as an ion pumping enzyme involved in maintaining cellular ion homeostasis; however, in the past two decades, extensive research has been done to understand the signaling function of the Na/K-ATPase and determine its role in physiological and pathophysiological states. Our lab has shown that the Na/K-ATPase signaling cascade can function as an amplifier of reactive oxygen species (ROS) which can be initiated by cardiotonic steroids or increases in ROS...
January 9, 2018: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/29203210/indoxyl-sulfate-upregulates-the-cannabinoid-type-1-receptor-gene-via-an-atf3-c-jun-complex-mediated-signaling-pathway-in-the-model-of-uremic-cardiomyopathy
#4
Yu-Juei Hsu, Shih-Che Hsu, Yung-Lung Chang, Shih-Ming Huang, Chun-Che Shih, Chien-Sung Tsai, Chih-Yuan Lin
BACKGROUND: The risk of cardiovascular disease is notably increased in patients with chronic kidney disease (CKD) and cannabinoid receptor type 1 (CB1R) plays an important role in the development of uremic cardiomyopathy. However, the molecular mechanism underlying the uremic toxin-induced upregulation of CB1R remains elusive. METHODS: The expression of the ATF3/c-Jun complex and CB1R in both in vivo and in vitro models of CKD were measured. We also determined the impact of the ATF3/c-Jun complex on CB1R expression by transfecting H9c2 cells with dominant negative mutants of ATF3 or c-Jun...
February 1, 2018: International Journal of Cardiology
https://www.readbyqxmd.com/read/29155790/a-mouse-5-6th-nephrectomy-model-that-induces-experimental-uremic-cardiomyopathy
#5
Xiaoliang Wang, Muhammad A Chaudhry, Ying Nie, Zijian Xie, Joseph I Shapiro, Jiang Liu
Chronic kidney disease (CKD) is a great risk factor for cardiovascular disease events and mortality, and progressively develops to the clinical phenotype called "uremic cardiomyopathy". We describe here an experimental CKD mouse model, named 5/6(th) partial nephrectomy (PNx) with pole ligation, which developed uremic cardiomyopathy at four weeks post-surgery. This PNx model was performed by a two-step surgery. In step-one surgery, both poles of the left kidney were ligated. In step-two surgery, which was performed 7 days after the step-one surgery, the right kidney was removed...
November 7, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29064176/calciphylaxis-after-parathyroidectomy
#6
Sathish Karmegam, Anupkumar Shetty
A 60-year-old African American man with end stage renal disease on hemodialysis (HD) for the past 2.5 years developed severe hyperparathyroidism. Other past medical history included atrial fibrillation, type II diabetes mellitus, hypertension, gout, pericardial effusion needing pericardial window, deep vein thrombosis, mitral insufficiency, and cardiomyopathy with implantable cardioversion device placement. His parathyroid hormone (PTH) level peaked at 4,191 pg/mL despite being on cinacalcet, sevelamer, and paricalcitol...
October 2017: Hemodialysis International
https://www.readbyqxmd.com/read/29052587/corrigendum-attenuation-of-na-k-atpase-mediated-oxidant-amplification-with-pnaktide-ameliorates-experimental-uremic-cardiomyopathy
#7
Jiang Liu, Jiang Tian, Muhammad Chaudhry, Kyle Maxwell, Yanling Yan, Xiaoliang Wang, Preeya T Shah, Asad A Khawaja, Rebecca Martin, Tylor J Robinette, Adee El-Hamdani, Michael W Dodrill, Komal Sodhi, Christopher A Drummond, Steven T Haller, David J Kennedy, Nader G Abraham, Zijian Xie, Joseph I Shapiro
This corrects the article DOI: 10.1038/srep34592.
October 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28967233/overhydration-underhydration-and-total-body-sodium-a-tricky-m%C3%A3-nage-a-trois-in-dialysis-patients
#8
EDITORIAL
Luminita Voroneanu, Cristina Gavrilovici, Adrian Covic
Overhydration is a frequent complication in dialysis patients. It has been linked with hypertension, left ventricular hypertrophy, arterial stiffness, atherosclerosis uremic cardiomyopathy, and all-cause mortality or cardiovascular morbidity. In addition, predialysis underhydration is also associated with increased risk of death in ESRD patients. In this context, the optimal evaluation of hydration status is a must. However, this mission is not easy or accurate. In the last 10 years, several new methods have been tested in dialysis patients, particularly bioimpedance and lung ultrasonography...
January 2018: Seminars in Dialysis
https://www.readbyqxmd.com/read/28946968/uremic-cardiomyopathy-and-peritoneal-transport-in-incident-peritoneal-dialysis-patients-in-the-west-of-mexico
#9
Leonardo Pazarin-Villaseñor, Ulises Reyes-Lopez, Ana de León-Flores, Alejandra Guillermina Miranda-Díaz, Jorge Andrade-Sierra
No abstract text is available yet for this article.
September 2017: Nefrología: Publicación Oficial de la Sociedad Española Nefrologia
https://www.readbyqxmd.com/read/28490697/-effect-of-left-ventricular-hypertrophy-and-deformation-on-cardiac-function-in-patients-with-uremia-cardiomyopathy-by-using-quantitative-speckle-tracking-technology
#10
Yi Zheng, Xiaohong Yang, Qiping Zhou, Yaoyao Huang, Fan Zhang, Liangyu Wang
To evaluate the effect of left ventricular hypertrophy and deformation on cardiac function in patients with uremic cardiomyopathy (UCM) by using the technology of two dimensional speckle tracking imaging (2D-STI).
 Methods: A total of 67 UCM patients were randomly divided into the normal cardiac function group (subgroup A, 32 cases) and the abnormal cardiac function group (subgroup B, 35 cases) according to the New York Heart Association points (NYHA-P). A total of 30 healthy subjetcs served as the control group...
April 28, 2017: Zhong Nan da Xue Xue Bao. Yi Xue Ban, Journal of Central South University. Medical Sciences
https://www.readbyqxmd.com/read/28379433/microbiome-perturbation-by-oral-vancomycin-reduces-plasma-concentration-of-two-gut-derived-uremic-solutes-indoxyl-sulfate-and-p-cresyl-sulfate-in-end-stage-renal-disease
#11
Lama Nazzal, Julia Roberts, Prabhjot Singh, Sachin Jhawar, Albert Matalon, Zhan Gao, Robert Holzman, Len Liebes, Martin J Blaser, Jerome Lowenstein
Background: Observational studies have suggested a relationship between the plasma concentration of indoxyl sulfate (IS) and p-cresyl sulfate (PCS), small gut-derived 'uremic solutes', and the high incidence of uremic cardiomyopathy in patients with end-stage renal disease (ESRD). IS and PCS are derived from the metabolism of dietary components (tryptophan and tyrosine) by gut bacteria. This pilot study was designed to examine the effects of a poorly absorbable antibiotic (vancomycin) on the plasma concentration of two gut-derived 'uremic solutes', IS and PCS, and on the composition of the gut microbiome...
November 1, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28338377/sodium-potassium-adenosine-triphosphatase-na-k-atpase-as-a-therapeutic-target-for-uremic-cardiomyopathy
#12
REVIEW
Xiaoliang Wang, Jiang Liu, Christopher A Drummond, Joseph I Shapiro
Clinically, patients with significant reductions in renal function present with cardiovascular dysfunction typically termed, uremic cardiomyopathy. It is a progressive series of cardiac pathophysiological changes, including left ventricular diastolic dysfunction and hypertrophy (LVH) which sometimes progress to left ventricular dilation (LVD) and systolic dysfunction in the setting of chronic kidney disease (CKD). Uremic cardiomyopathy is almost ubiquitous in patients afflicted with end stage renal disease (ESRD)...
May 2017: Expert Opinion on Therapeutic Targets
https://www.readbyqxmd.com/read/28131398/recombinant-%C3%AE-klotho-may-be-prophylactic-and-therapeutic-for-acute-to-chronic-kidney-disease-progression-and-uremic-cardiomyopathy
#13
Ming Chang Hu, Mingjun Shi, Nancy Gillings, Brianna Flores, Masaya Takahashi, Makoto Kuro-O, Orson W Moe
α-Klotho is highly expressed in the kidney, and its extracellular domain is cleaved and released into the circulation. Chronic kidney disease (CKD) is a state of α-Klotho deficiency, which exerts multiple negative systemic effects on numerous organs including the cardiovascular system. Since acute kidney injury (AKI) greatly escalates the risk of CKD development, we explored the effect of α-Klotho on prevention and treatment on post-AKI to CKD progression and cardiovascular disease. Therein, ischemia reperfusion injury-induced AKI was followed by early administration of recombinant α-Klotho or vehicle starting one day and continued for four days after kidney injury (CKD prevention protocol)...
May 2017: Kidney International
https://www.readbyqxmd.com/read/27811451/expressions-of-macrophage-migration-inhibitory-factor-in-patients-with-chronic-kidney-disease
#14
Y Liu, X Zhang, G Liu, J Huang, Y Pan, Z Hu
CONTEXT: Uremic cardiomyopathy is a risk factor of end-stage renal disease (ESRD) and is responsible for high mortality rates and increased left ventricular mass index (LVMI). Macrophage migration inhibitory factor (MIF) promotes inflammation and is an important factor in uremic cardiomyopathy. AIMS: The aim of this study is to investigate the effects of serum macrophage MIF on myocardial hypertrophy in ESRD patients and to examine the relation of this factor to clinical characteristics...
November 2016: Nigerian Journal of Clinical Practice
https://www.readbyqxmd.com/read/27725315/cardiac-actions-of-fibroblast-growth-factor-23
#15
REVIEW
Christian Faul
Fibroblast growth factors (FGF) are mitogenic signal mediators that induce cell proliferation and survival. Although cardiac myocytes are post-mitotic, they have been shown to be able to respond to local and circulating FGFs. While precise molecular mechanisms are not well characterized, some FGF family members have been shown to induce cardiac remodeling under physiologic conditions by mediating hypertrophic growth in cardiac myocytes and by promoting angiogenesis, both events leading to increased cardiac function and output...
July 2017: Bone
https://www.readbyqxmd.com/read/27698370/attenuation-of-na-k-atpase-mediated-oxidant-amplification-with-pnaktide-ameliorates-experimental-uremic-cardiomyopathy
#16
Jiang Liu, Jiang Tian, Muhammad Chaudhry, Kyle Maxwell, Yanling Yan, Xiaoliang Wang, Preeya T Shah, Asad A Khawaja, Rebecca Martin, Tylor J Robinette, Adee El-Hamdani, Michael W Dodrill, Komal Sodhi, Christopher A Drummond, Steven T Haller, David J Kennedy, Nader G Abraham, Zijian Xie, Joseph I Shapiro
We have previously reported that the sodium potassium adenosine triphosphatase (Na/K-ATPase) can effect the amplification of reactive oxygen species. In this study, we examined whether attenuation of oxidant stress by antagonism of Na/K-ATPase oxidant amplification might ameliorate experimental uremic cardiomyopathy induced by partial nephrectomy (PNx). PNx induced the development of cardiac morphological and biochemical changes consistent with human uremic cardiomyopathy. Both inhibition of Na/K-ATPase oxidant amplification with pNaKtide and induction of heme oxygenase-1 (HO-1) with cobalt protoporphyrin (CoPP) markedly attenuated the development of phenotypical features of uremic cardiomyopathy...
October 4, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27694325/rapamycin-attenuates-cardiac-fibrosis-in-experimental-uremic-cardiomyopathy-by-reducing-marinobufagenin-levels-and-inhibiting-downstream-pro-fibrotic-signaling
#17
Steven T Haller, Yanling Yan, Christopher A Drummond, Joe Xie, Jiang Tian, David J Kennedy, Victoria Y Shilova, Zijian Xie, Jiang Liu, Christopher J Cooper, Deepak Malhotra, Joseph I Shapiro, Olga V Fedorova, Alexei Y Bagrov
BACKGROUND: Experimental uremic cardiomyopathy causes cardiac fibrosis and is causally related to the increased circulating levels of the cardiotonic steroid, marinobufagenin (MBG), which signals through Na/K-ATPase. Rapamycin is an inhibitor of the serine/threonine kinase mammalian target of rapamycin (mTOR) implicated in the progression of many different forms of renal disease. Given that Na/K-ATPase signaling is known to stimulate the mTOR system, we speculated that the ameliorative effects of rapamycin might influence this pathway...
September 30, 2016: Journal of the American Heart Association
https://www.readbyqxmd.com/read/27598118/the-role-of-na-k-atpase-signaling-in-oxidative-stress-related-to-obesity-and-cardiovascular-disease
#18
REVIEW
Krithika Srikanthan, Joseph I Shapiro, Komal Sodhi
Na/K-ATPase has been extensively studied for its ion pumping function, but, in the past several decades, has been identified as a scaffolding and signaling protein. Initially it was found that cardiotonic steroids (CTS) mediate signal transduction through the Na/K-ATPase and result in the generation of reactive oxygen species (ROS), which are also capable of initiating the signal cascade. However, in recent years, this Na/K-ATPase/ROS amplification loop has demonstrated significance in oxidative stress related disease states, including obesity, atherosclerosis, heart failure, uremic cardiomyopathy, and hypertension...
September 3, 2016: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/27219043/the-role-of-fibroblast-growth-factor-23-and-klotho-in-uremic-cardiomyopathy
#19
Alexander Grabner, Christian Faul
PURPOSE OF REVIEW: In chronic kidney disease (CKD), multiple factors contribute to the development of cardiac hypertrophy by directly targeting the heart or indirectly by inducing systemic changes such as hypertension, anemia, and inflammation. Furthermore, disturbances in phosphate metabolism have been identified as nonclassical risk factors for cardiovascular mortality in these patients. With declining kidney function, the physiologic regulators of phosphate homeostasis undergo changes in their activity as well as their circulating levels, thus potentially contributing to cardiac hypertrophy once they are out of balance...
July 2016: Current Opinion in Nephrology and Hypertension
https://www.readbyqxmd.com/read/27125747/deficiency-of-soluble-%C3%AE-klotho-as-an-independent-cause-of-uremic-cardiomyopathy
#20
REVIEW
J Xie, Y-L Wu, C-L Huang
Cardiovascular disease (CVD) is the major cause of mortality for patients with chronic kidney disease (CKD). Cardiac hypertrophy, occurring in up to 95% patients with CKD (also known as uremic cardiomyopathy), increases their risk for cardiovascular death. Many CKD-specific risk factors of uremic cardiomyopathy have been recognized, such as secondary hyperparathyroidism, indoxyl sulfate (IS)/p-cresyl, and vitamin D deficiency. However, several randomized controlled trials have recently shown that these risk factors have little impact on the mortality of CVD...
2016: Vitamins and Hormones
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