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https://www.readbyqxmd.com/read/29916093/megalin-mediates-plasma-membrane-to-mitochondria-cross-talk-and-regulates-mitochondrial-metabolism
#1
Qingtian Li, Fan Lei, Yi Tang, Jenny Szu-Chin Pan, Qiang Tong, Yuxiang Sun, David Sheikh-Hamad
Mitochondrial intracrines are extracellular signaling proteins, targeted to the mitochondria. The pathway for mitochondrial targeting of mitochondrial intracrines and actions in the mitochondria remains unknown. Megalin/LRP2 mediates the uptake of vitamins and proteins, and is critical for clearance of amyloid-β protein from the brain. Megalin mutations underlie the pathogenesis of Donnai-Barrow and Lowe syndromes, characterized by brain defects and kidney dysfunction; megalin was not previously known to reside in the mitochondria...
June 9, 2018: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/29915131/medication-safety-principles-and-practice-in-ckd
#2
Chanel F Whittaker, Margaret A Miklich, Roshni S Patel, Jeffrey C Fink
Ensuring patient safety is a priority of medical care because iatrogenic injury has been a primary concern. Medications are an important source of medical errors, and kidney disease is a thoroughfare of factors threatening safe administration of medicines. Principal among these is reduced kidney function because almost half of all medications used are eliminated via the kidney. Additionally, kidney patients often suffer from multimorbidity, including diabetes, hypertension, and heart failure, with a range of prescribers who often do not coordinate treatments...
June 18, 2018: Clinical Journal of the American Society of Nephrology: CJASN
https://www.readbyqxmd.com/read/29914534/efficacy-of-low-protein-diet-for-diabetic-nephropathy-a-systematic-review-of-randomized-controlled-trials
#3
Huan-Gao Zhu, Zhao-Shun Jiang, Pi-Yun Gong, Dong-Mei Zhang, Zhi-Wei Zou, Qian-Zhang, Hui-Mei Ma, Zhen-Gang Guo, Jun-Yu Zhao, Jian-Jun Dong, Lin-Liao
BACKGROUND: A low-protein diet (LPD) is believed to be beneficial in slowing the progression of kidney disease. It is reported that low protein diet can improve protein, sugar and lipid metabolism, and reduce the symptoms and complications of renal insufficiency. However, there has been controversial regarding the effects of protein restriction on diabetic nephropathy (DN). OBJECTIVE: To investigate the efficacy of LPD on renal function in patients with type 1 or 2 DN by meta-analysis of randomized controlled trials (RCTs)...
June 19, 2018: Lipids in Health and Disease
https://www.readbyqxmd.com/read/29913183/predictive-metabolic-signatures-of-end-stage-renal-disease-a-multivariate-analysis-of-population-based-data
#4
Robson E Silva, João L Baldim, Daniela A Chagas-Paula, Marisi G Soares, João H G Lago, Reggiani V Gonçalves, Rômulo D Novaes
The variability of molecular signatures and predictive low molecular weight markers of chronic kidney disease (CKD) in different populations are poorly understood. Thus, in a large sample with 4763 people we compare the molecular signatures and metabolites with diagnostic relevance in plasma and urine of CKD patients of different geographical origins. From an integrated model based on dynamic networks and multivariate statistics, metabolites with predictive value obtained from targeted and untargeted molecular analysis, interactions between metabolic pathways affected by CKD, and the methodological quality of metabolomic studies were analyzed...
June 15, 2018: Biochimie
https://www.readbyqxmd.com/read/29913155/antifibrotic-role-of-pgc-1%C3%AE-sirna-against-tgf-%C3%AE-1-induced-renal-interstitial-fibrosis
#5
Jue-Long Wang, Chin-Wang Chen, Mu-Rou Tsai, Shu-Fen Liu, Tsuing-Jeu Hung, Yu-Ju-Hung, Wen-Teng Chang, Ming-Der Shi, Pei-Fang Hsieh, Yu-Lin Yang
Peroxisome proliferator-activated receptor coactivator-1 alpha (PGC-1α) is a transcriptional coactivator that regulates energy metabolism and mitochondrial biogenesis. Recently, mitochondrial dysfunction has been indicated as an established risk factor for the development of renal fibrosis. However, whether PGC-1α is involved in the pathogenesis of renal fibrosis is unknown. In this study, we treated NRK-49F (normal rat kidney fibroblast) cells with transforming growth factor-beta 1 (TGF-β1) for 24h to establish an in vitro fibrosis model...
June 15, 2018: Experimental Cell Research
https://www.readbyqxmd.com/read/29911961/liver-donation-after-brain-death-following-intentional-ingestion-of-99-e-cigarette-liquid-nicotine-10-ml
#6
Jinwoong Lee, Yeonho You, Jung Soo Park, Jin Hong Min, Insool Yoo, Wonjoon Jeong, Yongchul Cho, Seung Ryu, Seungwhan Kim, Sung Uk Cho, Se Kwang Oh, Junwan Lee, Hong Joon Ahn, Sang Min Jung
Incidences of brain death due to nicotine overdose by e-cigarettes have been increasing. In such cases, liver donation has been not reported because of the secondary damage to the liver due to metabolism of large amounts of nicotine. However, kidneys have been considered acceptable for transplant. Here, we present a successful case of liver transplant from a brain-dead donor due to intentional nicotine ingestion who did not have extensive steatosis. To the best of our knowledge, this is the first report of such a case...
June 18, 2018: Experimental and Clinical Transplantation
https://www.readbyqxmd.com/read/29910771/use-of-readily-accessible-inflammatory-markers-to-predict-diabetic-kidney-disease
#7
REVIEW
Lauren Winter, Lydia A Wong, George Jerums, Jas-Mine Seah, Michele Clarke, Sih Min Tan, Melinda T Coughlan, Richard J MacIsaac, Elif I Ekinci
Diabetic kidney disease is a common complication of type 1 and type 2 diabetes and is the primary cause of end-stage renal disease in developed countries. Early detection of diabetic kidney disease will facilitate early intervention aimed at reducing the rate of progression to end-stage renal disease. Diabetic kidney disease has been traditionally classified based on the presence of albuminuria. More recently estimated glomerular filtration rate has also been incorporated into the staging of diabetic kidney disease...
2018: Frontiers in Endocrinology
https://www.readbyqxmd.com/read/29910611/long-term-safety-of-tiotropium-olodaterol-respimat-%C3%A2-in-patients-with-moderate-to-very-severe-copd-and-renal-impairment-in-the-tonado-%C3%A2-studies
#8
Craig LaForce, Eric Derom, Ulrich Bothner, Isabel M Kloer, Matthias Trampisch, Roland Buhl
Introduction: The safety, lung function efficacy, and symptomatic benefits of combined tiotropium and olodaterol in patients with COPD were established in the 1-year TONADO® studies (NCT01431274; NCT01431287). As tiotropium is predominantly excreted by the kidneys, the long-term safety profile of tiotropium/olodaterol was investigated in patients with renal impairment in a prespecified safety analysis of the TONADO studies. Methods: These were 2 replicate, randomized, double-blind, parallel-group, 52-week Phase III studies that assessed tiotropium/olodaterol compared with tiotropium or olodaterol alone (all via Respimat® ) in patients with moderate-to-very severe COPD...
2018: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/29910605/role-of-etelcalcetide-in-the-management-of-secondary-hyperparathyroidism-in-hemodialysis-patients-a-review-on-current-data-and-place-in-therapy
#9
REVIEW
Claudia Friedl, Emanuel Zitt
Secondary hyperparathyroidism (sHPT) is a frequently occurring severe complication of advanced kidney disease. Its clinical consequences include extraskeletal vascular and valvular calcifications, changes in bone metabolism resulting in renal osteodystrophy, and an increased risk of cardiovascular morbidity and mortality. Calcimimetics are a cornerstone of parathyroid hormone (PTH)-lowering therapy, as confirmed by the recently updated 2017 Kidney Disease: Improving Global Outcomes chronic kidney disease - mineral and bone disorder clinical practice guidelines...
2018: Drug Design, Development and Therapy
https://www.readbyqxmd.com/read/29910040/sodium-bicarbonate-therapy-for-patients-with-severe-metabolic-acidaemia-in-the-intensive-care-unit-bicar-icu-a-multicentre-open-label-randomised-controlled-phase-3-trial
#10
Samir Jaber, Catherine Paugam, Emmanuel Futier, Jean-Yves Lefrant, Sigismond Lasocki, Thomas Lescot, Julien Pottecher, Alexandre Demoule, Martine Ferrandière, Karim Asehnoune, Jean Dellamonica, Lionel Velly, Paër-Sélim Abback, Audrey de Jong, Vincent Brunot, Fouad Belafia, Antoine Roquilly, Gérald Chanques, Laurent Muller, Jean-Michel Constantin, Helena Bertet, Kada Klouche, Nicolas Molinari, Boris Jung
BACKGROUND: Acute acidaemia is frequently observed during critical illness. Sodium bicarbonate infusion for the treatment of severe metabolic acidaemia is a possible treatment option but remains controversial, as no studies to date have examined its effect on clinical outcomes. Therefore, we aimed to evaluate whether sodium bicarbonate infusion would improve these outcomes in critically ill patients. METHODS: We did a multicentre, open-label, randomised controlled, phase 3 trial...
June 14, 2018: Lancet
https://www.readbyqxmd.com/read/29909691/pharmacokinetics-tissue-distribution-bioavailability-and-excretion-of-nuciferine-an-alkaloid-from-lotus-in-rats-by-lc-ms-ms
#11
Fugang Wang, Juan Cao, Xueqin Hou, Zhiyong Li, Xiaolan Qu
OBJECTIVE: In order to characterize the pharmacokinetics, tissue distribution, bioavailability and excretion of nuciferine, a reliable gradient LC/MS/MS-based method was developed and validated. METHODS: Sprague-Dawley rats were intravenously injected with a bolus of nuciferine (0.2 mg/kg) and orally given a single dose of nuciferine (10.0 mg/kg). Blood samples were withdrawn via the ocular vein at specific times. Organs including the liver, kidney, brain, lung, heart and spleen were collected at specific times after oral administration of 10...
June 18, 2018: Drug Development and Industrial Pharmacy
https://www.readbyqxmd.com/read/29909502/increased-ngal-level-associated-with-iron-store-in-chronic-kidney-disease-with-anemia
#12
Daijun Xiang, Xiuying Wang, Peipei Liu, Yuling Pan, Qian Zhang, Xiuping Chi, Ying Jing, Xinxin Duan, Qiaozhen Wei, Jianan Wang, Mianyang Li, Chengbin Wang
An iron scarcity often occurs in chronic kidney disease (CKD). Neutrophil gelatinase-associated lipocalin (NGAL), a biomarker of acute kidney injury, is associated with iron metabolism. The present study determined the association between serum NGAL and iron status in chronic kidney disease with anemia. A total of 154 adult CKD patients were divided into anemia and without anemia groups. The anemia groups were further subdivided into two groups based on the presence or absence of iron deficiency, defined as a transferrin saturation (TSAT) < 20%...
June 16, 2018: Clinical and Experimental Medicine
https://www.readbyqxmd.com/read/29909417/metabolic-syndrome-and-the-iodine-dose-creatinine-clearance-ratio-as-determinants-of-contrast-induced-acute-kidney-injury
#13
Ali Amiri, Reza Ghanavati, Hassan Riahi Beni, Seyyed Hashem Sezavar, Mehrdad Sheykhvatan, Mahsa Arab
BACKGROUND: Finding patients at risk of developing contrast-induced acute kidney injury (CI-AKI) is important because of its associated complications. In the present study, the contribution of different variables, such as the presence of metabolic syndrome (MetS), the volume creatinine clearance (V/CrCl) ratio, the iodine-dose (I-dose)/CrCl ratio, or hypertension, to CI-AKI was evaluated. METHODS: A total of 255 patients undergoing elective coronary angiography with or without intervention were enrolled and divided into a MetS and a control group...
June 15, 2018: Cardiorenal Medicine
https://www.readbyqxmd.com/read/29909238/autophagy-as-an-emerging-target-in-cardiorenal-metabolic-disease-from-pathophysiology-to-management
#14
REVIEW
Yingmei Zhang, Adam T Whaley-Connell, James R Sowers, Jun Ren
Although advances in medical technology and health care have improved the early diagnosis and management for cardiorenal metabolic disorders, the prevalence of obesity, insulin resistance, diabetes, hypertension, dyslipidemia, and kidney disease remains high. Findings from numerous population-based studies, clinical trials, and experimental evidence have consolidated a number of theories for the pathogenesis of cardiorenal metabolic anomalies including resistance to the metabolic action of insulin, abnormal glucose and lipid metabolism, oxidative and nitrosative stress, endoplasmic reticulum (ER) stress, apoptosis, mitochondrial damage, and inflammation...
June 15, 2018: Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/29909065/evaluation-of-kim-1-as-an-early-biomarker-of-snakebite-induced-aki-in-mice
#15
Rodrigo Tavares Dantas, Tiago Lima Sampaio, Dânya Bandeira Lima, Ramon Róseo Paula Pessoa Bezerra de Menezes, Jader Almeida Canuto, Marcos Hikari Toyama, Janaína Serra Azul Monteiro Evangelista, Alice Maria Costa Martins
Acute kidney injury (AKI) is one of the most important complications of bothropic poisoning and its early identification remains challenging. The nephrotoxicity of Bothrops insularis venom (BinsV) was previously described by our research group. In this study, we continued to evaluate the effect of BinsV on kidney function in mice and LLC-MK2 proximal tubule cells, evaluating KIM-1 protein as an early AKI biomarker. Male Swiss mice were inoculated with BinsV intramuscularly and observed for 24 h in a metabolic cage model...
June 14, 2018: Toxicon: Official Journal of the International Society on Toxinology
https://www.readbyqxmd.com/read/29909004/sglt2-inhibitors-and-the-kidney-effects-and-mechanisms
#16
REVIEW
V Tsimihodimos, T D Filippatos, M S Elisaf
AIMS: Numerous clinical trials have shown that sodium glucose cotransporter 2 (SGLT2) inhibitors exert a favorable effect on the indices of renal function (albuminuria, glomerular filtration rate decline over time) and the incidence of hard renal endpoints such as renal death or time to initiation of renal replacement therapy. MATERIALS AND METHODS: In this review, we describe in detail the evidence regarding the nephroprotective mechanisms of SGLT2 inhibitors and describe the risk factors that may predispose to the development of acute kidney injury in patients receiving these drugs...
June 6, 2018: Diabetes & Metabolic Syndrome
https://www.readbyqxmd.com/read/29906492/the-influence-of-ageing-on-the-extrapineal-melatonin-synthetic-pathway
#17
Branka Popović, Milica Velimirović, Tihomir Stojković, Gavrilo Brajović, Silvio R De Luka, Ivan Milovanović, Srdjan Stefanović, Dragica Nikolić, Jasna L Ristić-Djurović, Nataša D Petronijević, Alexander M Trbovich
Ageing affects various physiological and metabolic processes in a body and a progressive accumulation of oxidative damage stands out as often used explanation. One of the most powerful scavenger of reactive oxygen species (ROS) in all organs is melatonin. A majority of melatonin supplied to the body via blood originates from the pineal gland. However, we have been interested in a locally produced melatonin. We have used 2.5- and 36-months-old Wistar rats. Tissues were collected and gene expression of AA-NAT and ASMT, the two key enzymes in a synthesis of melatonin, was determined in brain, liver, kidney, heart, skin, and intestine...
June 12, 2018: Experimental Gerontology
https://www.readbyqxmd.com/read/29905968/skeletal-consequences-of-nephropathic-cystinosis
#18
Pablo Florenzano, Carlos Ferreira, Galina Nesterova, Mary Scott Ramnitz, Sri Harsha Tella, Luis Fernandez de Castro, Sydney M Brown, Adom Whitaker, Renata C Pereira, Dorothy Bulas, Rachel I Gafni, Isidro B Salusky, William A Gahl, Michael T Collins
Nephropathic cystinosis is a rare lysosomal storage disorder. Patients present in the first year of life with renal Fanconi syndrome that evolves to progressive chronic kidney disease (CKD). Despite the multiple risk factors for bone disease, the frequency and severity of skeletal disorders in nephropathic cystinosis have not been described. We performed systematic bone and mineral evaluations of subjects with cystinosis seen at the NIH (N = 30), including history and physical examination, serum and urine biochemistries, DXA, vertebral fracture assessment, skeletal radiographs, and renal ultrasound...
June 15, 2018: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/29905804/relationship-between-postmortem-urine-and-blood-concentrations-of-ghb-furnishes-useful-information-to-help-interpret-drug-intoxication-deaths
#19
A W Jones, A Holmgren, F C Kugelberg, F P Busardò
This article reports the concentrations of gamma-hydroxybutyrate (GHB) in femoral blood and bladder urine in a case series of drug intoxication deaths (N = 37). GHB was determined in blood (B-GHB) and urine (U-GHB) by a GC-FID-GBL method and 30 mg/L was used as a cut-off concentration for reporting positive results. The mean (median) and range of GHB concentrations in bladder urine were 2,818 mg/L (1,900 mg/L) and 120-13,000 mg/L, respectively. These concentrations were appreciably higher than those in femoral blood, 637 mg/L (260 mg/L) and 30-9,200 mg/L, respectively...
June 14, 2018: Journal of Analytical Toxicology
https://www.readbyqxmd.com/read/29904301/flecainide-toxicity-in-renal-failure
#20
Rogin Subedi, Ryan K Dean, Arbind Chaudhary, Tamas Szombathy
Flecainide, a class Ic antiarrhythmic, is used for the prevention of paroxysmal supraventricular tachycardia, paroxysmal atrial fibrillation/flutter, and sustained ventricular tachycardia. Flecainide is primarily metabolized by the liver and to a lesser extent (30%) is excreted unchanged in the kidney. We present a case of flecainide toxicity in the setting of renal impairment that was successfully treated with intravenous sodium bicarbonate.
July 2018: Proceedings of the Baylor University Medical Center
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