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https://www.readbyqxmd.com/read/28538699/cholesterol-crystal-embolism-and-chronic-kidney-disease
#1
REVIEW
Xuezhu Li, George Bayliss, Shougang Zhuang
Renal disease caused by cholesterol crystal embolism (CCE) occurs when cholesterol crystals become lodged in small renal arteries after small pieces of atheromatous plaques break off from the aorta or renal arteries and shower the downstream vascular bed. CCE is a multisystemic disease but kidneys are particularly vulnerable to atheroembolic disease, which can cause an acute, subacute, or chronic decline in renal function. This life-threatening disease may be underdiagnosed and overlooked as a cause of chronic kidney disease (CKD) among patients with advanced atherosclerosis...
May 24, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28538426/managing-kidney-transplant-recipients-in-primary-care
#2
Shira Roth
Patients who have undergone kidney transplant are at increased risk for heart disease, new-onset diabetes, metabolic syndrome, and certain malignancies, in addition to opportunistic infections associated with immunosuppression. This article describes guidelines for routine management of kidney transplant recipients in primary care, as well as how to recognize risk factors and complications.
June 2017: JAAPA: Official Journal of the American Academy of Physician Assistants
https://www.readbyqxmd.com/read/28538380/acute-effects-of-cinacalcet-on-arterial-stiffness-and-ventricular-function-in-hemodialysis-patients-a-randomized-double-blinded-crossover-study
#3
Aurélie Poulin, Pierre-Luc Bellemare, Catherine Fortier, Fabrice Mac-Way, Simon Desmeules, Karine Marquis, Valérie Gaudreault, Marcel Lebel, Mohsen Agharazii
BACKGROUND: Serum calcium concentration (Ca) plays an essential role in a vascular muscle tone and myocardial contractility. Previously, we showed that acutely lowering Ca by hemodialysis reduced arterial stiffness. Cinacalcet is a calcimimetic that lowers Ca and parathyroid hormone (PTH). The aim of the present study was to examine whether acute lowering of Ca by cinacalcet improves vascular stiffness and myocardial diastolic dysfunction. METHOD: This is a double-blinded randomized placebo-controlled crossover study that included 21 adult patients with end-stage kidney disease undergoing chronic hemodialysis...
May 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28538218/dialysis-therapy-and-conservative-management-of-advanced-chronic-kidney-disease-in-the-elderly-a-systematic-review
#4
Supakanya Wongrakpanich, Paweena Susantitaphong, Suramath Isaranuwatchai, Jirat Chenbhanich, Somchai Eiam-Ong, Bertrand L Jaber
BACKGROUND: Dialysis in older adults with chronic kidney disease (CKD) and comorbidities may not be associated with improved life expectancy compared to conservative management. To inform clinical practice, we performed a systematic review of all available studies examining this hypothesis. METHODS: We performed a systematic review of retrospective and prospective cohort studies of older adults with stage-5 CKD who chose dialysis (hemodialysis or peritoneal dialysis) or opted for conservative management (including management of complications of CKD and palliative care)...
May 25, 2017: Nephron
https://www.readbyqxmd.com/read/28538038/live-donor-kidney-pak-versus-spk-how-to-decide
#5
Erik Stites, Alexander C Wiseman
PURPOSE OF REVIEW: Patients with type 1 diabetes and end stage renal disease face a complex choice when considering the relative risks and benefits of kidney transplant alone with or without subsequent pancreas after kidney transplant (PAK) or simultaneous kidney pancreas transplant (SPK). RECENT FINDINGS: SPK is considered the optimal treatment regarding long-term patient survival, but when also faced with the option of living donor kidney transplant with the potential for PAK later, the ideal option is less clear...
May 19, 2017: Current Opinion in Organ Transplantation
https://www.readbyqxmd.com/read/28538016/hypoxia-inducible-factor-activation-in-diabetic-kidney-disease
#6
Patrik Persson, Fredrik Palm
PURPOSE OF REVIEW: Tissue hypoxia is present in kidneys from diabetic patients and constitutes a central pathway to diabetic kidney disease (DKD). This review summarizes regulation of hypoxia inducible factor (HIF) and interventions towards the same for treatment of DKD. RECENT FINDINGS: In the hypoxic diabetic kidney, HIF activity and the effects of HIF signaling seem to be cell-specific. In mesangial cells, elevated glucose levels induce HIF activity by a hypoxia-independent mechanism...
May 19, 2017: Current Opinion in Nephrology and Hypertension
https://www.readbyqxmd.com/read/28538015/the-kallikrein-kinin-system-in-diabetic-kidney-disease
#7
Wenjuan Liu, Robert C Stanton, Zhaoyun Zhang
PURPOSE OF REVIEW: Diabetic kidney disease (DKD) is one of the most common complications in diabetes mellitus and accounts for a large proportion of clinical nephrology practice. Studies have shown that the kallikrein-kinin system (KKS) may be involved in several pathogenic mechanisms that contribute to DKD, including oxidative stress, inflammatory cytokines, and profibrotic autacoids. This review focuses on recent research advance on the potential role of the KKS in the development of DKD and its clinical relevance...
May 19, 2017: Current Opinion in Nephrology and Hypertension
https://www.readbyqxmd.com/read/28537976/interest-of-urinary-timp-2-%C3%A3-igfbp-7-for-predicting-the-occurrence-of-acute-kidney-injury-after-cardiac-surgery-a-gray-zone-approach
#8
Toufic Finge, Sebastien Bertran, Claire Roger, Damien Candela, Bruno Pereira, Christopher Scott, Laurent Muller, Benjamin Louart, Jean-Yves Lefrant
BACKGROUND: This study assessed the ability of 3-hour postoperative urinary tissue inhibitor of metalloproteinases-2 × insulin-like growth factor binding protein-7 ([TIMP-2] × [IGFBP-7]) to predict postoperative acute kidney injury (AKI) in patients undergoing cardiopulmonary bypass during cardiac surgery. METHODS: Patients undergoing cardiac surgery with cardiopulmonary bypass were eligible for this study. Patients with initial chronic renal insufficiency requiring renal replacement therapy, patients <18 years of age, and parturients were not included...
May 19, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28537880/biological-effects-and-epidemiological-consequences-of-arsenic-exposure-and-reagents-that-can-ameliorate-arsenic-damage-in-vivo
#9
REVIEW
Chinthalapally V Rao, Sanya Pal, Altaf Mohammed, Mudassir Farooqui, Mark P Doescher, Adam S Asch, Hiroshi Y Yamada
Through contaminated diet, water, and other forms of environmental exposure, arsenic affects human health. There are many U.S. and worldwide "hot spots" where the arsenic level in public water exceeds the maximum exposure limit. The biological effects of chronic arsenic exposure include generation of reactive oxygen species (ROS), leading to oxidative stress and DNA damage, epigenetic DNA modification, induction of genomic instability, and inflammation and immunomodulation, all of which can initiate carcinogenesis...
May 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/28537846/uremic-toxins-affect-the-imbalance-of-redox-state-and-overexpression-of-prolyl-hydroxylase-2-in-human-adipose-tissue-derived-mesenchymal-stem-cells-involved-in-wound-healing
#10
Vuong Cat Khanh, Kinuko Ohneda, Toshiki Kato, Toshiharu Yamashita, Fujio Sato, Kana Tachi, Osamu Ohneda
Chronic kidney disease (CKD) results in a delay in wound healing because of its complications such as uremia, anemia, and fluid overload. Mesenchymal stem cells (MSCs) are considered to be a candidate for wound healing because of the ability to recruit many types of cells. However, it is still unclear whether the CKD-adipose tissue-derived MSCs (CKD-AT-MSCs) have the same function in wound healing as healthy donor-derived normal AT-MSCs (nAT-MSCs). In this study, we found that uremic toxins induced elevated reactive oxygen species (ROS) expression in nAT-MSCs, resulting in the reduced expression of hypoxia-inducible factor-1α (HIF-1α) under hypoxic conditions...
May 24, 2017: Stem Cells and Development
https://www.readbyqxmd.com/read/28537783/association-of-mild-to-moderate-reduction-in-glomerular-filtration-rate-with-subclinical-atherosclerosis-in-postmenopausal-women
#11
Florina Parv, Andrei Beceanu, Rodica Avram, Romulus Zorin Timar, Bogdan Timar, Florica Gadalean
BACKGROUND: Due to loss of hormonal protective effects, postmenopausal women have an increased cardiovascular (CV) risk. Chronic kidney disease (CKD) is a well-established risk factor for CV disease, but little is known whether mild-to-moderate kidney dysfunction is associated with atherosclerosis burden in the postmenopausal asymptomatic women. MATERIALS AND METHODS: Subclinical atherosclerosis was evaluated in 125 postmenopausal women with no clinical form of atherosclerosis, by carotid and femoral ultrasonography, ankle-brachial index (ABI), and flow-mediated dilation (FMD)...
May 24, 2017: Journal of Women's Health
https://www.readbyqxmd.com/read/28535630/-analysis-of-risk-factors-and-prognosis-for-bleeding-in-very-old-male-patients-with-stage-5-chronic-kidney-disease
#12
X Shen, Q G Ao, Q L Cheng, S Liu, J H Zhao, Q Ma, G Yang, Y Liu
Objective: To analyze the risk factors and prognosis of bleeding in very old male patients with stage 5 chronic kidney disease (CKD). Methods: The clinical data of 143 very old male patients with stage 5 CKD was retrospectively analyzed. According to the occurrence of bleeding, the patients were divided into two groups including the hemorrhage group and the non-hemorrhage group. The history of diseases, renal function, blood cell parameters and coagulation index were compared and analyzed between the two groups...
May 16, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28535525/expanded-hemodialysis-a-new-therapy-for-a-new-class-of-membranes
#13
Claudio Ronco, Gaetano La Manna
A wide spectrum of molecules is retained in end-stage kidney disease, normally defined as uremic toxins. These solutes have different molecular weights and radii. Current dialysis membranes and techniques only remove solutes in the range of 50-15,000 Da, with limited or no capability to remove solutes in the middle to high molecular weight range (up to 50,000 Da). Improved removal has been obtained with high cut-off (HCO) membranes, with albumin loss representing a limitation to their practical application...
2017: Contributions to Nephrology
https://www.readbyqxmd.com/read/28535524/genetics-and-autosomal-dominant-polycystic-kidney-disease-progression
#14
Valentina Corradi, Anna Giuliani, Fiorella Gastaldon, Massimo de Cal, Barbara Mancini, Anna Montaldi, Alberta Alghisi, Irene Capelli, Gaetano La Manna, Claudio Ronco
Autosomal dominant polycystic kidney disease (ADPKD) is the most common hereditary kidney disease, accounting for 10% of European patients on renal replacement therapy. In the previous years, many approaches to slow the progression of ADPKD were studied and many clinical trials published. In addition to having diagnostic role, the description of the genotype is even important to predict the progression of the disease and contributes, combined with several other factors, to a more precise patients classification...
2017: Contributions to Nephrology
https://www.readbyqxmd.com/read/28535523/mycophenolate-mofetil-a-possible-alternative-treatment-for-iga-nephropathy
#15
Olga Baraldi, Giorgia Comai, Vania Cuna, Maria Cappuccilli, Carla Serra, Claudio Ronco, Gaetano La Manna
IgA nephropathy (IgAN) is the most common primary glomerulonephritis in developed countries and a leading cause of chronic kidney disease. IgAN is a mesangial proliferative glomerulonephritis characterized by diffuse mesangial deposition of IgA, often accompanied by the deposition of IgG and the C3 component of complement in a similar distribution. This condition is in most cases oligosymptomatic, often discovered coincidentally. Currently, there is no specific treatment available for IgAN and the use of immunosuppression therapy is debated...
2017: Contributions to Nephrology
https://www.readbyqxmd.com/read/28535522/restenosis-in-hemodialytic-fistulas-and-chronic-kidney-disease-associated-vascular-disease-two-pathologies-driven-by-metakaryotic-stem-cells
#16
Gianandrea Pasquinelli, William G Thilly, Elena V Gostjeva, Paola Todeschini, Giuseppe Cianciolo, Claudio Ronco, Gaetano La Manna
Chronic kidney disease (CKD) exacerbating vascular disease poses a major challenge to nephrology. Surgically placed vascular fistulas, as an aid to hemodialysis prior to kidney transplant, have extended many lives, while post-surgical restenosis closure of the fistula by smooth muscle cells affects many lives. When post-surgical restenosis is developed, palliative measures are almost always surgical: there are no effective drug treatments. In this study, we offer a testable hypothesis that effects of CKD on widely distributed vascular diseases and the phenomenon of fistula restenosis are both driven by the pathologic creation of non-dividing smooth muscle cells via asymmetric division of exponentially increasing metakaryotic stem cells...
2017: Contributions to Nephrology
https://www.readbyqxmd.com/read/28535521/fibroblast-growth-factor-23-mineral-metabolism-and-beyond
#17
Alexander Grabner, Sandro Mazzaferro, Giuseppe Cianciolo, Stefanie Krick, Irene Capelli, Silverio Rotondi, Claudio Ronco, Gaetano La Manna, Christian Faul
Patients affected by chronic kidney disease (CKD) exhibit a high risk of cardiovascular mortality that is poorly explained by traditional risk factors. There is a growing awareness about the role of derangement of mineral metabolism that is currently accepted as a trigger and sustainer of cardiovascular disease (CVD) in CKD patients. The synthetic definition of CKD mineral and bone disorder (CKD-MBD) split the concept that the indexes of mineral metabolism extend their effects beyond the bone until the vascular wall and metabolic milieu of CKD patients through complex pathways...
2017: Contributions to Nephrology
https://www.readbyqxmd.com/read/28535520/phosphate-in-chronic-kidney-disease-progression
#18
Mario Cozzolino, Denis Foque, Paola Ciceri, Andrea Galassi
A direct and independent association between serum phosphate (P) levels and mortality has been reported. High circulating P concentrations, still within the normal range, was associated with unfavourable outcomes in normal subjects as well as in chronic kidney disease (CKD) patients. Experimental data support the notion that P overload may hamper survival expectancy, directly inducing vascular, skeletal, and renal ageing. The balance of P results from dietary intake, intestinal absorption, glomerular filtration, tubular resorption, and hormonal asset...
2017: Contributions to Nephrology
https://www.readbyqxmd.com/read/28535513/pkc-%C3%AE-triggers-egfr-ubiquitination-endocytosis-and-erk-activation-in-podocytes-stimulated-with-high-glucose
#19
Chun-Tao Lei, Yan-Hong Wei, Hui Tang, Qian Wen, Chen Ye, Chun Zhang, Hua Su
BACKGROUND: Protein Kinase C-α (PKC-α) and epidermal growth factor receptor (EGFR) are both involved in diabetic kidney disease; however, the connection between these two proteins during high glucose-induced podocyte injury remains uncertain. METHODS: Diabetes was induced in SD rats by streptozotocin (STZ). Fourteen days later, the kidney cortex was removed and subjected to plasma membrane isolation and lipid raft fractionation. In vitro study human podocyte cell line was differentiated and subjected to various treatments...
May 25, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28535253/endothelial-glycocalyx-the-battleground-for-complications-of-sepsis-and-kidney-injury
#20
Jong Wook Song, Joseph Zullo, Mark Lipphardt, Matthew Dragovich, Frank X Zhang, Bingmei Fu, Michael S Goligorsky
After briefly discussing endothelial glycocalyx and its role in vascular physiology and renal disease, this overview focuses on its degradation very early in the course of microbial sepsis. We describe our recently proposed mechanism for glycocalyx degradation induced by exocytosis of lysosome-related organelles and release of their cargo. Notably, an intermediate in nitric oxide synthesis, NG-hydroxy-l-arginine, shows efficacy in curtailing exocytosis of these organelles and improvement in animal survival...
May 23, 2017: Nephrology, Dialysis, Transplantation
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