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https://www.readbyqxmd.com/read/29669331/previous-exercise-effects-in-cisplatin-induced-renal-lesions-in-rats
#1
Heloísa D C Francescato, Lucas F Almeida, Natany G Reis, Camila M Faleiros, Marcelo Papoti, Roberto S Costa, Terezila M Coimbra
BACKGROUND/AIMS: Physical training has beneficial effects on endothelial function and can influence the regeneration of the endothelial cell. We investigated the effect of physical training on cisplatin (CP)-induced acute kidney injury and assessed the impact of training on endothelial structure and function, and on the inflammatory processes in rats. METHODS: We injected male Wistar rats subjected to previous physical training in treadmill running (trained, TR) or not (sedentary, SED) with CP (5 mg/kg) (TR+CP and SED+CP groups, respectively)...
April 13, 2018: Kidney & Blood Pressure Research
https://www.readbyqxmd.com/read/29611334/conditional-ablation-of-the-prorenin-receptor-in-nephron-progenitor-cells-results-in-developmental-programming-of-hypertension
#2
Renfang Song, Laura Kidd, Adam Janssen, Ihor V Yosypiv
Nephron induction during kidney development is driven by reciprocal interactions between progenitor cells (NPCs) of the cap mesenchyme (CM) and the ureteric bud (UB). The prorenin receptor (PRR) is a receptor for renin and prorenin, and an accessory subunit of the vacuolar proton pump V-ATPase. Previously, we demonstrated that conditional ablation of the PRR in Six2+ NPCs in mice (Six2PRR -/- ) causes early neonatal death. Here, we identified genes that are regulated by PRR in Six2+ NPCs FACS-isolated from Six2PRR -/- and control kidneys on embryonic day E15...
April 2018: Physiological Reports
https://www.readbyqxmd.com/read/29575816/kidney-derived-c-kit-cells-possess-regenerative-potential
#3
Samirah A Gomes, Joshua M Hare, Erika B Rangel
Kidney-derived c-Kit+ cells exhibit progenitor/stem cell properties in vitro (self-renewal capacity, clonogenicity, and multipotentiality). These cells can regenerate epithelial tubular cells following ischemia-reperfusion injury and accelerate foot processes effacement reversal in a model of acute proteinuria in rats. Several mechanisms are involved in kidney regeneration by kidney-derived c-Kit+ cells, including cell engraftment and differentiation into renal-like structures, such as tubules, vessels, and podocytes...
April 2018: Stem Cells Translational Medicine
https://www.readbyqxmd.com/read/29575280/renal-regeneration-after-acute-kidney-injury
#4
REVIEW
Silvia Coelho, Guadalupe Cabral, José António Lopes, António Jacinto
Acute kidney injury is common and associated with negative renal and patient outcomes. The human kidney has a real but limited regeneration capacity. Understanding renal regeneration may allow us to manipulate this process and thus develop therapeutic weapons to improve patients' outcome. In the first part of this paper we discuss the clinical factors associated with renal recovery: baseline patient particularities, acute kidney injury characteristics and the medical approach taken in the short and long-term...
March 25, 2018: Nephrology
https://www.readbyqxmd.com/read/29545789/characterization-of-renal-injury-and-inflammation-in-an-experimental-model-of-intravascular-hemolysis
#5
Nicolas S Merle, Anne Grunenwald, Marie-Lucile Figueres, Sophie Chauvet, Marie Daugan, Samantha Knockaert, Tania Robe-Rybkine, Remi Noe, Olivia May, Marie Frimat, Nathan Brinkman, Thomas Gentinetta, Sylvia Miescher, Pascal Houillier, Veronique Legros, Florence Gonnet, Olivier P Blanc-Brude, Marion Rabant, Regis Daniel, Jordan D Dimitrov, Lubka T Roumenina
Intravascular erythrocyte destruction, accompanied by the release of pro-oxidative and pro-inflammatory components hemoglobin and heme, is a common event in the pathogenesis of numerous diseases with heterogeneous etiology and clinical features. A frequent adverse effect related to massive hemolysis is the renal injury and inflammation. Nevertheless, it is still unclear whether heme--a danger-associated molecular pattern--and ligand for TLR4 or upstream hemolysis-derived products are responsible for these effects...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29544224/expression-of-the-alpha8-integrin-chain-facilitates-phagocytosis-by-renal-mesangial-cells
#6
Ines Marek, Robert Becker, Fabian B Fahlbusch, Carlos Menendez-Castro, Wolfgang Rascher, Christoph Daniel, Gudrun Volkert, Andrea Hartner
BACKGROUND/AIMS: Healing of mesangioproliferative glomerulonephritis involves degradation of excess extracellular matrix, resolution of hypercellularity by apoptosis and phagocytosis of apoptotic cells. Integrin receptors participate in the regulation of phagocytosis. In mice deficient for alpha8 integrin (Itga8-/-) healing of glomerulonephritis is delayed. As Itga8 is abundant in mesangial cells (MC) which are non-professional phagocytes, we hypothesized that Itga8 facilitates phagocytosis of apoptotic cells and matrix components by MC...
March 10, 2018: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29541835/long-term-implantability-of-resorbable-carboxymethyl-cellulose-chitosan-microspheres-in-a-rabbit-renal-arterial-embolization-model
#7
Lihui Weng, Davis Seelig, Omid Souresrafil
PURPOSE: To determine the physiologic response to resorbable carboxymethyl cellulose/chitosan (CMC/CN) microspheres in a long-term rabbit model, including the clinical response, gross pathology, and histopathology. MATERIALS AND METHODS: Six rabbits were embolized with CMC/CN microspheres (300-500 µm) in one kidney via an inferior renal artery branch. Angiography was performed immediately before and after embolization and prior to killing at 6 months (180 ± 7 days, n = 3) and 12 months (365 ± 10 days, n = 3)...
March 14, 2018: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/29534659/refractory-cd20-positive-cellular-rejection-in-living-kidney-transplant-a-case-report-and-review-of-literature
#8
Ahmed I Akl, Hussein A Sheashaa, Mona Abdel Rahim, Muhammed A El Hadedy, Ayman F Refaie
Transplant is the optimal therapy for patients with end-stage renal disease. Acute cellular rejection refractory to treatment remains a major risk factor for graft loss and poor outcomes. In this study, we describe a 39-year-old man who received a living-related kidney transplant. Two days after transplant, the patient displayed acute deterioration of graft function. Conventional anti-rejection therapy was initiated, but graft function did not improve. Biopsy revealed acute cellular rejection (grade IIA), and C4d and HLA antibodies were negative...
March 9, 2018: Experimental and Clinical Transplantation
https://www.readbyqxmd.com/read/29531810/lithium-induces-mesenchymal-epithelial-differentiation-during-human-kidney-development-by-activation-of-the-wnt-signalling-system
#9
Karen L Price, Maria Kolatsi-Joannou, Chiara Mari, David A Long, Paul J D Winyard
Kidney function is directly linked to the number of nephrons which are generated until 32-36 weeks gestation in humans. Failure to make nephrons during development leads to congenital renal malformations, whilst nephron loss in adulthood occurs in progressive renal disease. Therefore, an understanding of the molecular processes which underlie human nephron development may help design new treatments for renal disease. Mesenchyme to epithelial transition (MET) is critical for forming nephrons, and molecular pathways which control rodent MET have been identified...
December 2018: Cell Death Discovery
https://www.readbyqxmd.com/read/29513070/endothelial-progenitor-cells-accelerate-endothelial-regeneration-in-an-in-vitro-model-of-shigatoxin-2a-induced-injury-via-soluble-growth-factors
#10
Christian Patry, Christian Betzen, Farnoosh Fathalizadeh, Alexander Fichtner, Jens H Westhoff, Thomas Fleming, Volker Eckstein, Tom Bruckner, Martina Bielaszewska, Helge Karch, Georg F Hoffmann, Burkhard Tönshoff, Neysan Rafat
Endothelial injury with consecutive microangiopathy and endothelial dysfunction plays a central role in the pathogenesis of the post-enteropathic hemolytic uremic syndrome (D+HUS). To identify new treatment strategies, we examined the regenerative potential of endothelial progenitor cells (EPC) in an in vitro model of Shiga toxin (Stx) 2a-induced glomerular endothelial injury present in D+HUS and the mechanisms of EPC-triggered endothelial regeneration. We simulated the pro-inflammatory milieu present in D+HUS by priming human renal glomerular endothelial cells (HRGEC) with Tumor Necrosis Factor (TNF)-α prior to stimulation with Stx2a...
March 7, 2018: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/29501969/hypoxia-inducible-factor-1%C3%AE-directs-renal-regeneration-induced-by-decellularized-scaffolds
#11
Yaling Yu, Haomin Cui, Chuan Chen, Gen Wen, Jia Xu, Binbin Zheng, Jianse Zhang, Chunyang Wang, Yimin Chai, Jin Mei
Although mammalian kidney regeneration has been reported to occur throughout life, mature kidneys in mammals are not thought to regenerate sufficiently, particularly glomeruli. In our previous work, we found that renal regeneration could be enhanced by decellularized renal scaffolds after partial nephrectomy. In this study, we verified that the enhanced renal regeneration mediated by decellularized scaffolds could be attributed to regenerated glomeruli, which were counted both indirectly and directly under a microscope...
May 2018: Biomaterials
https://www.readbyqxmd.com/read/29459907/impact-of-chronic-kidney-disease-mineral-and-bone-disorder-on-jaw-and-alveolar-bone-metabolism-a-narrative-review
#12
Tatjana Kanjevac, Borivoj Bijelic, Denis Brajkovic, Miroslav Vasovic, Radojica Stolic
Chronic kidney disease (CKD) has become a worldwide public health problem. It is estimated that nearly 90% of patients with chronic renal failure manifest some symptoms of oral disease. With advances in medical treatment, CKD patients are living longer and require oral care. Chronic kidney disease is often accompanied by disturbances in mineral metabolism which are classified as their own clinical entity known as CKD-mineral and bone disorder (CKD-MBD). CKD-MBD affects all aspects of bone physiology: bone volume, bone turnover and bone mineralization...
2018: Oral Health & Preventive Dentistry
https://www.readbyqxmd.com/read/29459508/hepatic-regeneration-and-reno-protection-by-fish-oil-nigella-sativa-oil-and-combined-fish-oil-nigella-sativa-volatiles-in-ccl-4-treated-rats
#13
Sahar Y Al-Okbi, Doha A Mohamed, Thanaa E Hamed, Amr E Edris, Karem Fouda
The aim of the present research was to investigate the effect of fish oil, crude Nigella sative oil and combined fish oil/Nigella sative volatile oil as hepato-regenerative and renal protective supplements. The oils were administered as emulsions to rat model with liver injury induced by CCl4 . Plasma activities of transaminases (AST and ALT) were evaluated as liver function indicators, while plasma creatinine and urea and creatinine clearance were determined as markers of kidney function. Plasma malondialdehyde (MDA), nitrite (NO) and tumor necrosis factor-α (TNF-α) were estimated to assess the exposure to oxidative stress and subsequent inflammation...
February 19, 2018: Journal of Oleo Science
https://www.readbyqxmd.com/read/29456203/effect-of-vitamin-e-on-reversibility-of-renal-function-following-discontinuation-of-colistin-in-rats-histological-and-biochemical-investigations
#14
Zohra Ghlissi, Ahmed Hakim, Hela Mnif, Rim Kallel, Khaled Zeghal, Tahiya Boudawara, Zouheir Sahnoun
This study was carried out to evaluate spontaneous renal regeneration after stopping colistin methanesulfonate (CMS), which induces tubular damage, and the curative effect of Vitamin E (vit E) in rats. Animals were given the following: sterile saline (n = 6), 300,000 IU/kg/ day of CMS (n = 24), or 450,000 IU/kg/day of CMS (n = 24) for seven days. Each CMS group was subdivided into four subgroups (n = 6) and sacrificed as follows: (i) 12 h after stopping CMS, (ii) two weeks after stopping CMS, (iii) two weeks after stopping treatment with vit E, and (iv) two weeks after stopping treatment with olive oil...
January 2018: Saudi Journal of Kidney Diseases and Transplantation
https://www.readbyqxmd.com/read/29455546/effects-of-complete-water-fasting-and-regeneration-diet-on-kidney-function-oxidative-stress-and-antioxidants
#15
V Mojto, A Gvozdjakova, J Kucharska, Z Rausova, O Vancova, J Valuch
OBJECTIVE: The aim of the study was to observe the influence of 11-days complete water fasting (WF) and regeneration diet (RD) on renal function, body weight, blood pressure and oxidative stress. BACKGROUND: Therapeutic WF is considered a healing method. METHODS: Ten volunteers drank only water for 11 days, followed by RD for the next 11 days. Data on body weight, blood pressure, kidney functions, antioxidants, lipid peroxidation, cholesterols, triacylglycerols and selected biochemical parameters were obtained...
2018: Bratislavské Lekárske Listy
https://www.readbyqxmd.com/read/29445145/canagliflozin-mediated-dual-inhibition-of-mitochondrial-glutamate-dehydrogenase-and-complex-i-an-off-target-adverse-effect
#16
Philipp F Secker, Sascha Beneke, Nadja Schlichenmaier, Johannes Delp, Simon Gutbier, Marcel Leist, Daniel R Dietrich
Recent FDA Drug Safety Communications report an increased risk for acute kidney injury in patients treated with the gliflozin class of sodium/glucose co-transport inhibitors indicated for treatment of type 2 diabetes mellitus. To identify a potential rationale for the latter, we used an in vitro human renal proximal tubule epithelial cell model system (RPTEC/TERT1), physiologically representing human renal proximal tubule function. A targeted metabolomics approach, contrasting gliflozins to inhibitors of central carbon metabolism and mitochondrial function, revealed a double mode of action for canagliflozin, but not for its analogs dapagliflozin and empagliflozin...
February 14, 2018: Cell Death & Disease
https://www.readbyqxmd.com/read/29444905/renal-interstitial-platelet-derived-growth-factor-receptor-%C3%AE-cells-support-proximal-tubular-regeneration
#17
Ina Maria Schiessl, Alexandra Grill, Katharina Fremter, Dominik Steppan, Maj-Kristina Hellmuth, Hayo Castrop
BACKGROUND: The kidney is considered to be a structurally stable organ with limited baseline cellular turnover. Nevertheless, single cells must be constantly replaced to conserve the functional integrity of the organ. PDGF chain B (PDGF-BB) signaling through fibroblast PDGF receptor- β (PDGFR β ) contributes to interstitial-epithelial cell communication and facilitates regenerative functions in several organs. However, the potential role of interstitial cells in renal tubular regeneration has not been examined...
February 14, 2018: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/29439807/could-notch-signaling-pathway-be-a-potential-therapeutic-option-in-renal-diseases
#18
Laura Marquez-Exposito, Elena Cantero-Navarro, Carolina Lavoz, Marta Fierro-Fernández, Jonay Poveda, Sandra Rayego-Mateos, Raúl R Rodrigues-Diez, José Luis Morgado-Pascual, Macarena Orejudo, Sergio Mezzano, Marta Ruiz-Ortega
Notch pathway regulates key processes in the kidney, involved in embryonic development and tissue damage. In many human chronic renal diseases a local activation of Notch pathway has been described, suggesting that several components of Notch pathway could be considered as biomarkers of renal damage. Experimental studies by genetic modulation of Notch components or pharmacological approaches by γ-secretase inhibitors have demonstrated the role of this pathway in renal regeneration renal, podocyte apoptosis, proliferation and fibroblasts activation, and induction of epithelial to mesenchymal transition of tubular epithelial cells...
February 10, 2018: Nefrología: Publicación Oficial de la Sociedad Española Nefrologia
https://www.readbyqxmd.com/read/29407000/the-arteriolar-injury-in-hypertension
#19
Qian Ru Gu, Yang Yang Li, Guo Rong Chen, M J Quinn
In 1937, Drs. Moritz and Oldt described arteriolar injuries in the kidneys (and other viscera) in hypertension, across the age range, in both sexes, and, in different races. This hypothesis proposes that injuries to vasomotor nerves cause the arteriolar injury in the kidney in hypertension, (as well as that in the uterus in preeclampsia). Different patterns of perivascular hyalinisation in different viscera are clues to the varying causes and consequences of arteriolar injury. In the uterus there is a symmetrical, perivascular "halo of hyalinisation" that marks the lines of extension of regenerating, injured nerves to the placental bed, whereas in the kidney there is a disordered and asymmetrical "halo of hyalinisation" where persistent, and recurrent, increases in intravascular pressures interrupt development of regenerating nerves...
February 2018: Medical Hypotheses
https://www.readbyqxmd.com/read/29389516/wnt-signaling-in-kidney-development-and-disease
#20
Yongping Wang, Chengji J Zhou, Youhua Liu
Wnt signal cascade is an evolutionarily conserved, developmental pathway that regulates embryogenesis, injury repair, and pathogenesis of human diseases. It is well established that Wnt ligands transmit their signal via canonical, β-catenin-dependent and noncanonical, β-catenin-independent mechanisms. Mounting evidence has revealed that Wnt signaling plays a key role in controlling early nephrogenesis and is implicated in the development of various kidney disorders. Dysregulations of Wnt expression cause a variety of developmental abnormalities and human diseases, such as congenital anomalies of the kidney and urinary tract, cystic kidney, and renal carcinoma...
January 2018: Progress in Molecular Biology and Translational Science
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