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Regeneration kidney

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https://www.readbyqxmd.com/read/27914126/effects-of-platelet-rich-plasma-on-kidney-regeneration-in-gentamicin-induced-nephrotoxicity
#1
Abbas Moghadam, Tahereh Talaei Khozani, Afsaneh Mafi, Mohammad Reza Namavar, Farzaneh Dehghani
Platelet-rich plasma (PRP) as a source of growth factors may induce tissue repairing and improve fibrosis. This study aimed to assess the effects of PRP on kidney regeneration and fibrosis in gentamicin (GM)-induced nephrotoxicity rat model by stereological study. Thirty-two male rats were selected. Nephrotoxicity was induced in animals by administration of GM (80 mg/kg/daily, intraperitoneally [IP], 8 day) and animals were treated by PRP (100 μL, intra-cortical injection using surgical microscopy, single dose)...
January 2017: Journal of Korean Medical Science
https://www.readbyqxmd.com/read/27890924/cellular-plasticity-in-kidney-injury-and-repair
#2
REVIEW
Monica Chang-Panesso, Benjamin D Humphreys
Terminally differentiated cells can be reprogrammed to pluripotency or directly to another differentiated cell type in vitro, a capacity termed cellular plasticity. Plasticity is not limited to in vitro manipulations but rather represents an important aspect of the regenerative response to injury in organs. Differentiated adult cells retain the capacity to dedifferentiate, adopting a progenitor-like phenotype after injury or, alternatively, to transdifferentiate, directly converting to a different mature cell type...
November 28, 2016: Nature Reviews. Nephrology
https://www.readbyqxmd.com/read/27877076/cardiomyogenic-differentiation-of-human-dental-follicle-derived-stem-cells-by-suberoylanilide-hydroxamic-acid-and-their-in-vivo-homing-property
#3
Iel-Yong Sung, Han-Na Son, Imran Ullah, Dinesh Bharti, Ju-Mi Park, Yeong-Cheol Cho, June-Ho Byun, Young-Hoon Kang, Su-Jin Sung, Jong-Woo Kim, Gyu-Jin Rho, Bong-Wook Park
The purpose of the present study was to investigate the in vitro cardiomyogenic differentiation potential of human dental follicle-derived stem cells (DFCs) under the influence of suberoylanilide hydroxamic acid (SAHA), a member of the histone deacetylase inhibitor family, and analyze the in vivo homing capacity of induced cardiomyocytes (iCMs) when transplanted systemically. DFCs from extracted wisdom teeth showed mesenchymal stem cell (MSC) characteristics such as plate adherent growing, expression of MSC markers (CD44, CD90, and CD105), and mesenchymal lineage-specific differentiation potential...
2016: International Journal of Medical Sciences
https://www.readbyqxmd.com/read/27871857/bmi-1-plays-a-critical-role-in-the-protection-from-acute-tubular-necrosis-by-mobilizing-renal-stem-progenitor-cells
#4
Xianhui Lv, Zhenzhen Yu, Chunfeng Xie, Xiuliang Dai, Qing Li, Dengshun Miao, Jianliang Jin
The regeneration of injured tubular cell occurs primarily from intrinsic renal stem/progenitor cells (RSCs) labeled with CD24 and CD133 after acute tubular necrosis (ATN). Bmi-1 plays a crucial role in regulating self-renewal, differentiation and aging of multiple adult stem cells and progenitor cells. Bmi-1 was rapidly elevated in the induction of adult kidney regeneration by renal injury. To determine whether Bmi-1 maintained mobilization of RSCs in the protection from ATN, glycerol-rhabdomyolysis-induced ATN were performed in wild type (WT) and Bmi-1-deficient (Bmi-1(-/-)) mice...
November 18, 2016: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/27871849/cd44-fucosylation-on-mesenchymal-stem-cell-enhances-homing-and-macrophage-polarization-in-ischemic-kidney-injury
#5
Kang-Ju Chou, Po-Tsang Lee, Chien-Liang Chen, Chih-Yang Hsu, Wei-Chieh Huang, Chien-Wei Huang, Hua-Chang Fang
The lack of homing ability possibly reduces the healing potential of bone-marrow-derived mesenchymal stem cells (MSCs). Therefore, transforming native CD44 on MSCs into a hematopoietic cell E-/L-selectin ligand (HCELL) that possesses potent E-selectin affinity might enhance the homing and regenerative abilities of MSCs. Through fucosyltransferase VI (FTVI) transfection, MSCs were fucosylated on N-glycans of CD44 to become HCELL positive, thus interacting with E-selectin on injured endothelial cells. HCELL expression facilitated MSC homing in kidneys within 24hours after injury and reduced lung stasis...
November 18, 2016: Experimental Cell Research
https://www.readbyqxmd.com/read/27871114/bone-marrow-stromal-stem-cells-in-tissue-engineering-and-regenerative-medicine
#6
A Polymeri, W V Giannobile, D Kaigler
Bone marrow stromal stem cells (BMSCs) are adult multipotent cells, which have the potential to differentiate into cell types of mesodermal origin, namely osteocytes, adipocytes, and chondrocytes. Due to their accessibility and expansion potential, BMSCs have historically held therapeutic promise in tissue engineering and regenerative medicine applications. More recently, it has been demonstrated that not only can bone marrow stromal stem cells directly participate in tissue regeneration, but they also have the capacity to migrate to distant sites of tissue injury, where they can participate in tissue repair either directly through their differentiation or indirectly through paracrine mechanisms...
November 2016: Hormone and Metabolic Research, Hormon- und Stoffwechselforschung, Hormones et Métabolisme
https://www.readbyqxmd.com/read/27869651/pericyte-myd88-and-irak4-control-inflammatory-and-fibrotic-responses-to-tissue-injury
#7
Irina A Leaf, Shunsaku Nakagawa, Bryce G Johnson, Jin Joo Cha, Kristen Mittelsteadt, Kevin M Guckian, Ivan G Gomez, William A Altemeier, Jeremy S Duffield
Fibrotic disease is associated with matrix deposition that results in the loss of organ function. Pericytes, the precursors of myofibroblasts, are a source of pathological matrix collagens and may be promising targets for treating fibrogenesis. Here, we have shown that pericytes activate a TLR2/4- and MyD88-dependent proinflammatory program in response to tissue injury. Similarly to classic immune cells, pericytes activate the NLRP3 inflammasome, leading to IL-1β and IL-18 secretion. Released IL-1β signals through pericyte MyD88 to amplify this response...
November 21, 2016: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/27864544/investigative-nonclinical-cardiovascular-safety-and-toxicology-studies-with-bms-986094-an-ns5b-rna-dependent-rna-polymerase-inhibitor
#8
M Gill, K Horn, J Hennan, R White, D Bounous, S Clark, J R Megill, E Janovitz, M Davies, T Sanderson, M Graziano
BMS-986094, a 2'-C-methylguanosine prodrug that was in development for treatment of chronic hepatitis C infection was withdrawn from Phase 2 clinical trials because of unexpected cardiac and renal adverse events. Investigative nonclinical studies were conducted to extend the understanding of these findings using more comprehensive endpoints. BMS-986094 was given orally to female CD-1 mice (25 and 150 mg/kg/d) for 2 weeks (53/group) and to cynomolgus monkeys (15 and 30 mg/kg/d) for up to 6 weeks (2-3/sex/group for cardiovascular safety, and 5/sex/group for toxicology)...
November 17, 2016: Toxicological Sciences: An Official Journal of the Society of Toxicology
https://www.readbyqxmd.com/read/27862115/pediatric-acute-liver-failure-of-undetermined-cause-a-research-workshop
#9
Estella M Alonso, Simon P Horslen, Edward M Behrens, Edward Doo
: Pediatric Acute liver failure (PALF) is a potentially devastating condition which occurs in previously healthy children of all ages and frequently leads to a rapid clinical deterioration. An identified cause for liver injury is lacking in approximately 30% of cases. Children with undetermined diagnosis have lower spontaneous survival and higher rates of transplantation and death than other diagnostic groups. A single day workshop sponsored by the National Institute of Diabetes and Digestive and Kidney Diseases brought together clinicians and basic scientists to integrate aligned research findings and develop a foundation for new mechanistic studies and future treatment trials...
November 14, 2016: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/27858383/effect-of-creatine-on-rat-sciatic-nerve-injury-a-comparative-ultrastructural-study
#10
Fatma Helvacioglu, Ersin Kandemir, Büşra Karabacak, İdil Karataş, Ahmet Peçen, İpek Ercan, Tuğçe Şençelikel, Attila Dağdeviren
AIM: Creatine is an endogenous molecule synthesized in liver, kidney and pancreas from glycin and arginine which is important for mitochondrial metabolism. It is widely used as a supplement for improving muscle mass and function for many years. As it is expected to prevent apoptosis and diminish oxidative stress it is also studied in a number of neurodegenerative diseases for its beneficial effect in recent years. We studied the effect of creatine on the peripheral nerve injury in an experimental rat crush injury model to obtain ultrastructural evidence...
October 13, 2016: Turkish Neurosurgery
https://www.readbyqxmd.com/read/27852611/the-critical-role-of-kr%C3%A3-ppel-like-factors-in-kidney-disease
#11
Sandeep K Mallipattu, Chelsea C Estrada, John Cijiang He
Krüppel-like factors (KLFs) are a family of zinc-finger transcription factors critical to mammalian embryonic development, regeneration, and human disease. There is emerging evidence that KLFs play a vital role in key physiological processes in the kidney, ranging from maintenance of glomerular filtration barrier to tubulointerstitial inflammation to progression of kidney fibrosis. Seventeen members of the KLF family have been identified, and several have been well characterized in the kidney. Although they may share some overlap in their downstream targets, their structure and function remain distinct...
November 16, 2016: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/27830012/human-mesenchymal-stromal-cell-derived-extracellular-vesicles-alleviate-renal-ischemic-reperfusion-injury-and-enhance-angiogenesis-in-rats
#12
Xiangyu Zou, Di Gu, Xiaoyu Xing, Zhongliang Cheng, Dongliang Gong, Guangyuan Zhang, Yingjian Zhu
BACKGROUND: Mesenchymal stromal cells (MSCs) derived extracellular vesicles (EVs) were regarded as a potent medium for kidney injury repair and angiogenesis were regarded as an important step in tissue regeneration. However, the pro-angiogenesis effect of MSC-EVs in ischemia-reperfusion induced kidney injury and its potential mechanisms have yet to be determined. METHODS: EVs were isolated from the medium of human umbilical cord-derived MSCs (huMSCs) were injected in rats intravenously after unilateral kidney ischemia...
2016: American Journal of Translational Research
https://www.readbyqxmd.com/read/27823818/progress-in-transplantation-will-it-be-achieved-in-big-steps-or-by-marginal-gains
#13
Jeremy R Chapman
A wish for progress in transplantation assumes that there are needs not met by the currently available therapy and that the barriers to resolving the problems can be surmounted. There are 5 major unmet needs: the potential to avoid transplantation either by prevention of disease or provision of an alternative to natural biological organ replacement; geographic heterogeneity of access to, and quality of, transplantation; availability of transplantation to those in need of it; survival of the patient and the transplant; and the avoidance of adverse effects of immunosuppression...
November 4, 2016: American Journal of Kidney Diseases: the Official Journal of the National Kidney Foundation
https://www.readbyqxmd.com/read/27815996/human-airway-organoid-engineering-as-a-step-toward-lung-regeneration-and-disease-modeling
#14
Qi Tan, Kyoung Moo Choi, Delphine Sicard, Daniel J Tschumperlin
Organoids represent both a potentially powerful tool for the study cell-cell interactions within tissue-like environments, and a platform for tissue regenerative approaches. The development of lung tissue-like organoids from human adult-derived cells has not previously been reported. Here we combined human adult primary bronchial epithelial cells, lung fibroblasts, and lung microvascular endothelial cells in supportive 3D culture conditions to generate airway organoids. We demonstrate that randomly-seeded mixed cell populations undergo rapid condensation and self-organization into discrete epithelial and endothelial structures that are mechanically robust and stable during long term culture...
October 28, 2016: Biomaterials
https://www.readbyqxmd.com/read/27806746/antioxidant-machinery-related-to-decreased-mda-generation-by-thymus-algeriensis-essential-oil-induced-liver-and-kidney-regeneration
#15
Fatma Guesmi, Amit K Tyagi, Houda Bellamine, Ahmed Landoulsi
OBJECTIVE: This study was conducted to determine the histopathological and biochemical effects of Thymus algeriensis essential oil (TEO) on hydrogen peroxide (H2O2)-induced oxidative stress in liver and kidney tissues of rats. METHODS: Rats were treated in six groups and were exposed for 2 weeks to low (LD; 100 μmol/L) and high doses (HD; 1 mmol/L) of H2O2 in the presence or absence of TEO (180 mg/kg). Liver and kidney atrophy was measured by using biochemical and histopathological assays...
September 2016: Biomedical and Environmental Sciences: BES
https://www.readbyqxmd.com/read/27798166/mtor-signaling-regulates-protective-activity-of-transferred-cd4-foxp3-t-cells-in-repair-of-acute-kidney-injury
#16
Guochun Chen, Zheng Dong, Hong Liu, Yu Liu, Shaobin Duan, Yinghong Liu, Fuyou Liu, Huihui Chen
CD4(+)Foxp3(+) regulatory T cells (Tregs) are required for normal immune homeostasis. Recent studies suggested that Treg transfer facilitates recovery from acute kidney injury (AKI), but the molecular events that maintain Treg function after adoptive transfer remain unclear. This study aimed to investigate the regulation of mammalian target of rapamycin (mTOR) signaling in the Treg-mediated therapeutic effect on ischemic AKI. We noted significant Treg expansion in C57BL/6 mouse kidney, with enhanced immunosuppressive capacity after renal ischemia/reperfusion...
October 19, 2016: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/27795549/nanomedicines-for-renal-disease-current-status-and-future-applications
#17
REVIEW
Nazila Kamaly, John C He, Dennis A Ausiello, Omid C Farokhzad
Treatment and management of kidney disease currently presents an enormous global burden, and the application of nanotechnology principles to renal disease therapy, although still at an early stage, has profound transformative potential. The increasing translation of nanomedicines to the clinic, alongside research efforts in tissue regeneration and organ-on-a-chip investigations, are likely to provide novel solutions to treat kidney diseases. Our understanding of renal anatomy and of how the biological and physico-chemical properties of nanomedicines (the combination of a nanocarrier and a drug) influence their interactions with renal tissues has improved dramatically...
December 2016: Nature Reviews. Nephrology
https://www.readbyqxmd.com/read/27789682/disrupted-murine-gut-to-human-liver-signaling-alters-bile-acid-homeostasis-in-humanized-mouse-liver-models
#18
Edwin C Y Chow, Holly P Quach, Yueping Zhang, Jason Z Y Wang, David C Evan, Albert P Li, Jose Silva, Rommel G Tirona, Yurong Lai, K Sandy Pang
The humanized liver mouse model is increasingly being exploited for human drug metabolism studies. However, its model stability, inter-communication between human hepatocytes and mouse non-parenchymal cells in liver and murine intestine, and changes in extrahepatic transporter and enzyme expression has not been investigated. We examined these issues in FRGN [Fah(-/-), Rag2(-/-), and IL-2rg(-/-) on NOD background] and chimeric mice: mFRGN, and hFRGN (repopulated with mouse or human hepatocytes, respectively)...
October 27, 2016: Journal of Pharmacology and Experimental Therapeutics
https://www.readbyqxmd.com/read/27756842/an-intronic-enhancer-element-regulates-angiotensin-ii-type-2-receptor-expression-during-satellite-cell-differentiation-and-its-activity-is-suppressed-in-congestive-heart-failure
#19
Tadashi Yoshida, Patrice Delafontaine
Patients with advanced congestive heart failure (CHF) or chronic kidney disease often have increased angiotensin II (Ang II) levels and cachexia. We previously demonstrated that Ang II, via its type 1 receptor, causes muscle protein breakdown and apoptosis and inhibits satellite cell (SC) proliferation and muscle regeneration, likely contributing to cachexia in CHF and chronic kidney disease. In contrast, Ang II, via its type 2 receptor (AT2R) expression, is robustly induced during SC differentiation, and it potentiates muscle regeneration...
December 2, 2016: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/27755064/rapid-occurrence-of-chronic-kidney-disease-in-patients-experiencing-reversible-acute-kidney-injury-after-cardiac-surgery
#20
David Legouis, Pierre Galichon, Aurélien Bataille, Sylvie Chevret, Sophie Provenchère, Anne Boutten, Dimitrios Buklas, Jean-Luc Fellahi, Jean-Luc Hanouz, Alexandre Hertig
BACKGROUND: There is recent evidence to show that patients suffering from acute kidney injury are at increased risk of developing chronic kidney disease despite the fact that surviving tubular epithelial cells have the capacity to fully regenerate renal tubules and restore renal function within days or weeks. The aim of the study was to investigate the impact of acute kidney injury on de novo chronic kidney disease. METHODS: The authors conducted a retrospective population-based cohort study of patients initially free from chronic kidney disease who were scheduled for elective cardiac surgery with cardiopulmonary bypass and who developed an episode of acute kidney injury from which they recovered...
October 17, 2016: Anesthesiology
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