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Chronic Kidney Disease

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https://www.readbyqxmd.com/read/29053969/pebp1-wardens-ferroptosis-by-enabling-lipoxygenase-generation-of-lipid-death-signals
#1
Sally E Wenzel, Yulia Y Tyurina, Jinming Zhao, Claudette M St Croix, Haider H Dar, Gaowei Mao, Vladimir A Tyurin, Tamil S Anthonymuthu, Alexandr A Kapralov, Andrew A Amoscato, Karolina Mikulska-Ruminska, Indira H Shrivastava, Elizabeth M Kenny, Qin Yang, Joel C Rosenbaum, Louis J Sparvero, David R Emlet, Xiaoyan Wen, Yoshinori Minami, Feng Qu, Simon C Watkins, Theodore R Holman, Andrew P VanDemark, John A Kellum, Ivet Bahar, Hülya Bayır, Valerian E Kagan
Ferroptosis is a form of programmed cell death that is pathogenic to several acute and chronic diseases and executed via oxygenation of polyunsaturated phosphatidylethanolamines (PE) by 15-lipoxygenases (15-LO) that normally use free polyunsaturated fatty acids as substrates. Mechanisms of the altered 15-LO substrate specificity are enigmatic. We sought a common ferroptosis regulator for 15LO. We discovered that PEBP1, a scaffold protein inhibitor of protein kinase cascades, complexes with two 15LO isoforms, 15LO1 and 15LO2, and changes their substrate competence to generate hydroperoxy-PE...
October 19, 2017: Cell
https://www.readbyqxmd.com/read/29053546/histopathology-of-calciphylaxis-cohort-study-with-clinical-correlations
#2
Tiffany Y Chen, Julia S Lehman, Lawrence E Gibson, Christine M Lohse, Rokea A El-Azhary
Calciphylaxis is a rare, painful, and life-threatening condition with a high mortality rate. Although the etiology of calciphylaxis is not well understood, it has been proposed that calcium deposition within and around subcutaneous vessels restricts blood flow chronically, thereby predisposing the patient to acute pannicular and dermal thrombosis. Given increasing recognition of the role of hypercoagulability in calciphylaxis, this retrospective cohort study sought to evaluate the presence of thromboses and dermal angioplasia in calciphylaxis...
November 2017: American Journal of Dermatopathology
https://www.readbyqxmd.com/read/29052935/relationship-between-chronic-kidney-disease-without-diabetes-mellitus-and-components-of-frailty-in-community-dwelling-japanese-older-adults
#3
Sungchul Lee, Sangyoon Lee, Seongryu Bae, Kazuhiro Harada, Songee Jung, Masakazu Imaoka, Hyuma Makizako, Takehiko Doi, Hiroyuki Shimada
AIM: To evaluate the relationship between kidney function without diabetes and components of the frailty phenotype in community-dwelling Japanese older adults. METHODS: Participants were 8343 residents who completed baseline assessments, classified into four categories according to eGFR. Frailty status was defined using five criteria: (i) slow gait speed; (ii) muscle weakness; (iii) low physical activity; (iv) exhaustion; and (v) unintentional weight loss. RESULTS: After multivariate adjustment, participants with the lowest kidney function were at higher risk of frailty (OR 1...
October 20, 2017: Geriatrics & Gerontology International
https://www.readbyqxmd.com/read/29052786/tolvaptan-promotes-urinary-excretion-of-sodium-and-urea-a-retrospective-cohort-study
#4
Satoshi Minami, Takayuki Hamano, Hirotsugu Iwatani, Masayuki Mizui, Yoshiki Kimura, Yoshitaka Isaka
BACKGROUND: Tolvaptan (TLV) promotes aquaresis; however, little is known about its effect on solute excretion in chronic kidney disease (CKD). METHODS: We retrospectively studied CKD patients with decompensated heart failure (HF) or those with autosomal dominant polycystic kidney disease (ADPKD) receiving TLV. Patients with an increased urine volume of more than twice of daily variance were defined as "responders" in HF. We compared the ability of the urinary osmolality (U-OSM) change and urinary creatinine concentration ([U-Cr]) change to discriminate "responders"...
October 20, 2017: Clinical and Experimental Nephrology
https://www.readbyqxmd.com/read/29052568/genetic-testing-of-the-mucin-1-gene-variable-number-tandem-repeat-single-cytosine-insertion-mutation-in-a-chinese-family-with-medullary-cystic-kidney-disease
#5
Nuo Si, Ke Zheng, Jie Ma, Xiao-Lu Meng, Xue-Mei Li, Xue Zhang
BACKGROUND: Medullary cystic kidney disease (MCKD) is clinically indistinguishable from several other autosomal-dominant renal diseases; thus, molecular genetic testing is needed to establish a definitive diagnosis. A specific type of single cytosine insertion in the variable number tandem repeat (VNTR) of the mucin 1 (MUC1) gene is the only known cause of MCKD1; however, genetic analysis of this mutation is difficult and not yet offered routinely. To identify the causative mutation/s and establish a definitive diagnosis in a Chinese family with chronic kidney disease, clinical assessments and genetic analysis were performed, including using a modified genotyping method to identify the MUC1- VNTR single cytosine insertion...
October 20, 2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/29052559/efficacy-and-safety-of-niaoduqing-particles-for-delaying-moderate-to-severe-renal-dysfunction-a-randomized-double-blind-placebo-controlled-multicenter-clinical-study
#6
Ying Zheng, Guang-Yan Cai, Li-Qun He, Hong-Li Lin, Xiao-Hong Cheng, Nian-Song Wang, Gui-Hua Jian, Xu-Sheng Liu, Yu-Ning Liu, Zhao-Hui Ni, Jing-Ai Fang, Han-Lu Ding, Wang Guo, Ya-Ni He, Li-Hua Wang, Ya-Ping Wang, Hong-Tao Yang, Zhi-Ming Ye, Ren-Huan Yu, Li-Juan Zhao, Wen-Hua Zhou, Wen-Ge Li, Hui-Juan Mao, Yong-Li Zhan, Zhao Hu, Chen Yao, Ri-Bao Wei, Xiang-Mei Chen
BACKGROUND: Chronic kidney disease (CKD) with moderate-to-severe renal dysfunction usually exhibits an irreversible course, and available treatments for delaying the progression to end-stage renal disease are limited. This study aimed to assess the efficacy and safety of the traditional Chinese medicine, Niaoduqing particles, for delaying renal dysfunction in patients with stage 3b-4 CKD. METHODS: The present study was a prospective, randomized, double-blind, placebo-controlled, multicenter clinical trial...
October 20, 2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/29051304/consequences-of-advanced-aging-on-renal-function-in-chronic-hyperandrogenemic-female-rat-model-implications-for-aging-women-with-polycystic-ovary-syndrome
#7
Chetan N Patil, Lorraine C Racusen, Jane F Reckelhoff
Polycystic ovary syndrome (PCOS) is the most common endocrine and reproductive disorder in premenopausal women, characterized by hyperandrogenemia, metabolic syndrome, and inflammation. Women who had PCOS during their reproductive years remain hyperandrogenemic after menopause. The consequence of chronic hyperandrogenemia with advanced aging has not been studied to our knowledge. We have characterized a model of hyperandrogenemia in female rats and have aged them to 22-25 months to mimic advanced aging in hyperandrogenemic women, and tested the hypothesis that chronic exposure to hyperandrogenemia with aging has a deleterious effect on renal function...
November 2017: Physiological Reports
https://www.readbyqxmd.com/read/29051079/reduced-myocardial-flow-reserve-is-associated-with-diastolic-dysfunction-and-decreased-left-atrial-strain-in-patients-with-normal-ejection-fraction-and-epicardial-perfusion
#8
Matthew C Konerman, Joshua C Greenberg, Theodore J Kolias, James R Corbett, Ravi V Shah, Venkatesh L Murthy, Scott L Hummel
INTRODUCTION: Coronary microvascular dysfunction (MVD) may contribute to the pathogenesis of heart failure with preserved ejection fraction (HFpEF). Speckle-tracking echocardiography is a feasible and reproducible method for identifying abnormalities in left ventricular (LV) and left atrial (LA) function among HFpEF patients. By assessing myocardial flow reserve (MFR), positron emission tomography (PET) imaging enables quantitative assessment of coronary MVD. We hypothesized that, in patients with risk factors for HFpEF and normal epicardial perfusion on cardiac PET, abnormal MFR is associated with LV diastolic dysfunction (DD) and reduced LV and LA strain...
October 16, 2017: Journal of Cardiac Failure
https://www.readbyqxmd.com/read/29050900/bone-and-mineral-disorders-in-chronic-kidney-disease-implications-for-cardiovascular-health-and-ageing-in-the-general-population
#9
REVIEW
Adrian Covic, Marc Vervloet, Ziad A Massy, Pablo Ureña Torres, David Goldsmith, Vincent Brandenburg, Sandro Mazzaferro, Pieter Evenepoel, Jordi Bover, Mugurel Apetrii, Mario Cozzolino
The patient with chronic kidney disease (CKD) represents an extreme model for arteriosclerosis, vascular calcification, and bone disorders, all of which are also associated with ageing in the general population. These pathological features are also relevant to other common chronic health disorders such as diabetes, and chronic inflammatory and cardiovascular diseases. Although management and interventions for these major risk factors are now incorporated into most public health guidelines (eg, smoking cessation and control of bodyweight and blood pressure, as well as glucose and cholesterol concentrations), some residual cardiovascular risk is not reduced by implementation of these interventions...
October 16, 2017: Lancet Diabetes & Endocrinology
https://www.readbyqxmd.com/read/29050623/death-and-dialysis-after-transcatheter-aortic-valve-replacement-an-analysis-of-the-sts-acc-tvt-registry
#10
James W Hansen, Andrew Foy, Pradeep Yadav, Ian C Gilchrist, Mark Kozak, Amanda Stebbins, Roland Matsouaka, Sreekanth Vemulapalli, Alice Wang, Dee Dee Wang, Marvin H Eng, Adam B Greenbaum, William O O'Neill
OBJECTIVES: The authors sought to elucidate the true incidence of renal replacement therapy (RRT) after transcatheter aortic valve replacement (TAVR). BACKGROUND: There is a wide discrepancy in the reported rate of RRT after TAVR (1.4% to 40%). The true incidence of RRT after TAVR is unknown. METHODS: The STS/ACC TVT (Society of Thoracic Surgeons/American College of Cardiology Transcatheter Valve Therapy) registry was linked to the Centers for Medicare & Medicaid database to identify all patients that underwent TAVR from November 2011 through September 2015 and their outcomes...
October 23, 2017: JACC. Cardiovascular Interventions
https://www.readbyqxmd.com/read/29050621/association-of-chronic-kidney-disease-with-in-hospital-outcomes-of-transcatheter-aortic%C3%A2-valve-replacement
#11
Tanush Gupta, Kashish Goel, Dhaval Kolte, Sahil Khera, Pedro A Villablanca, Wilbert S Aronow, Anna E Bortnick, David P Slovut, Cynthia C Taub, Jorge R Kizer, Robert T Pyo, J Dawn Abbott, Gregg C Fonarow, Charanjit S Rihal, Mario J Garcia, Deepak L Bhatt
OBJECTIVES: This study sought to determine the association of chronic kidney disease (CKD) with in-hospital outcomes of transcatheter aortic valve replacement (TAVR). BACKGROUND: CKD is a known independent risk factor for worse outcomes after surgical aortic valve replacement (SAVR). However, data on outcomes of patients with CKD undergoing TAVR are limited, especially in those on chronic dialysis. METHODS: The authors used data from the 2012 to 2014 National Inpatient Sample database to identify all patients ≥18 years of age who underwent TAVR...
October 23, 2017: JACC. Cardiovascular Interventions
https://www.readbyqxmd.com/read/29050313/adipose-derived-mesenchymal-stem-cells-employed-exosomes-to-attenuate-aki-ckd-transition-through-tubular-epithelial-cell-dependent-sox9-activation
#12
Fengming Zhu, Octavia L S Chong Lee Shin, Guangchang Pei, Zhizhi Hu, Juan Yang, Han Zhu, Meng Wang, Jingyi Mou, Jie Sun, Yuxi Wang, Qian Yang, Zhi Zhao, Huzi Xu, Hui Gao, Weiqi Yao, Xiao Luo, Wenhui Liao, Gang Xu, Rui Zeng, Ying Yao
Acute kidney injury (AKI) predisposes patients to an increased risk into progressive chronic kidney disease (CKD), however effective treatments are still elusive. This study aimed to investigate the therapeutic efficacy of human adipose-derived MSCs (hAD-MSCs) in the prevention of AKI-CKD transition, and illuminate the role of Sox9, a vital transcription factor in the development of kidney, in this process. C57BL/6 mice were subjected to unilateral renal ischemia/reperfusion (I/R) with or without hAD-MSC treatment...
September 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/29050011/urine-ammonium-metabolic-acidosis-and-progression-of-chronic-kidney-disease
#13
Negiin Pourafshar, Shirin Pourafshar, Manoocher Soleimani
The metabolism of a typical Western diet generates 50-100 mEq of acid (H+) per day, which must be excreted in the urine for the systemic acid-base to remain in balance. The 2 major mechanisms that are responsible for the renal elimination of daily acid under normal conditions are ammonium (NH4+) excretion and titratable acidity. In the presence of systemic acidosis, ammonium excretion is intensified and becomes the crucial mechanism for the elimination of acid. The impairment in NH4+ excretion is therefore associated with reduced acid excretion, which causes excess accumulation of acid in the body and consequently results in metabolic acidosis...
October 19, 2017: Nephron
https://www.readbyqxmd.com/read/29049991/comparison-of-quality-of-life-in-patients-undergoing-hemodialysis-and-peritoneal-dialysis-a-systematic-review-and-meta-analysis
#14
Luca Zazzeroni, Gianandea Pasquinelli, Eleonora Nanni, Valeria Cremonini, Ivan Rubbi
BACKGROUND/AIMS: The increase in the survival rate of patients with chronic renal failure due to substitution treatment prompts an investigation of their quality of life (QoL), a key measure to evaluate the outcomes of chronic disease treatment. To determine whether hemodialysis or peritoneal dialysis provide a better QoL, a systematic meta-analysis was performed. METHODS: We searched through the database Cinahl, Medline, PubMed, Scopus and Proquest, including articles published from 2011 until June 2016...
October 19, 2017: Kidney & Blood Pressure Research
https://www.readbyqxmd.com/read/29049990/inhibition-of-pten-activity-aggravates-post-renal-fibrosis-in-mice-with-ischemia-reperfusion-induced-acute-kidney-injury
#15
Jun Zhou, Jiying Zhong, Sen Lin, Zhenxing Huang, Hongtao Chen, Simin Tang, Chengxiang Yang, Youling Fan
BACKGROUND: Renal fibrosis is a common pathophysiological feature of chronic kidney disease. Acute kidney injury (AKI) is defined as an independent causal factor of chronic kidney disease, with a pathological representation of post renal fibrosis. However, the etiopathogenesis underlying post renal fibrosis induced by AKI is not completely understood. METHODS: BALB/c mice were treated with bpv or vehicle controls and were, respectively, the ischemia reperfusion (IR) model group and control group...
October 19, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29049864/continuation-of-lithium-after-a-diagnosis-of-chronic-kidney-disease
#16
L V Kessing, B Feldt-Rasmussen, P K Andersen, T A Gerds, R W Licht
OBJECTIVE: To investigate whether continued lithium or anticonvulsant treatment after a first diagnosis of chronic kidney disease (CKD) was associated with progression to irreversible end-stage kidney disease. METHODS: Nationwide cohort study including all individuals in Denmark in a period from 1995 to 2012 with a diagnosis of CKD and (i) a history of lithium treatment (N = 754, among whom 238 patients had a diagnosis of bipolar disorder) or (ii) a history of anticonvulsant treatment (N = 5...
October 19, 2017: Acta Psychiatrica Scandinavica
https://www.readbyqxmd.com/read/29049415/effect-of-diacerein-on-renal-function-and-inflammatory-cytokines-in-participants-with-type-2-diabetes-mellitus-and-chronic-kidney-disease-a-randomized-controlled-trial
#17
Fabiana Piovesan, Glaucia S Tres, Leila B Moreira, Michael E Andrades, Hugo K Lisboa, Sandra C Fuchs
Diacerein seems to improve metabolic control and reduce inflammatory marker levels in individuals with type 2 diabetes mellitus (Type 2 DM), but for participants with chronic kidney disease (CKD) its effect is unknown. This study aimed to evaluate the effect of diacerein vs. placebo on urinary albumin/creatinine ratio (ACR), glomerular filtration rate (GFR), and inflammatory cytokines in type 2 DM participants with CKD. Blood pressure (BP) and metabolic control were secondary outcomes. This randomized, placebo-controlled, parallel trial of adjuvant treatment of type 2 DM with diacerein enrolled seventy-two participants with CKD, aged 30-80 years, with glycated hemoglobin levels from 53-97 mmol/mol (7...
2017: PloS One
https://www.readbyqxmd.com/read/29049187/a-myeloid-sarcoma-involving-the-small-intestine-kidneys-mesentery-and-mesenteric-lymph-nodes-a-case-report-and-literature-review
#18
Ping Wang, Quan Li, Li Zhang, Hong Ji, Cheng-Zhou Zhang, Bin Wang
RATIONALE: Myeloid sarcomas (MSs) are rare malignant hematological tumors. They most commonly occur in patients with acute or chronic myeloid leukemia. A de novo MS with no evidence of blood system disease is rare, but may represent the first sign of a systemic illness that precedes a full-blown disease. Herein, we report the computed tomography (CT) findings of an extremely rare case of a nonleukemic MS that progressed to acute myelogenous leukemia (AML) and simultaneously involved the small intestine, kidneys, mesentery, and mesenteric lymph nodes...
October 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29048977/off-clamp-robot-assisted-partial-nephrectomy-how-far-shall-we-proceed
#19
Ali Abdel Raheem, Glen Denmer Santok, Lawrence H C Kim, Ki Don Chang, Trenton G H Lum, Young Eun Yoon, Woong Kyu Han, Young Deuk Choi, Koon Ho Rha
BACKGROUND: Off-clamp robot-assisted partial nephrectomy (RAPN) is associated with increased intraoperative blood loss compared with on-clamp technique. Our aim was to demonstrate our surgical technique and to determine which tumors are ideally suited for this technique. METHODS: Sixty-two patients who underwent off-clamp RAPN for renal tumor between 2006 and 2016 were retrospectively analyzed. Increased estimated blood loss (EBL) volume was defined as more than 75 percentile...
October 19, 2017: Journal of Laparoendoscopic & Advanced Surgical Techniques. Part A
https://www.readbyqxmd.com/read/29048948/the-spectrum-of-sickle-hemoglobin-related-nephropathy-from-sickle-cell-disease-to-sickle-trait
#20
Rakhi P Naik, Vimal K Derebail
Renal dysfunction is among the most common complication of sickle cell disease (SCD), from hyposthenuria in children to progression to overt chronic kidney disease (CKD) in young adults. Emerging evidence now suggests that sickle hemoglobin-related nephropathy extends to individuals with sickle cell trait (SCT). Areas covered: This review will highlight the pathophysiology, epidemiology, and management recommendations for sickle nephropathy in both SCD and SCT. In addition, it will focus on the major demographic and genetic modifiers of renal disease in sickling hemoglobinopathies...
October 19, 2017: Expert Review of Hematology
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