scholarly journals FP266PBI-4050 REDUCES SYSTEMIC INFLAMMATION, ELECTROLYTE DISTURBANCES, AND RENAL INJURY IN MICE WITH SEPSIS-INDUCED ACUTE KIDNEY INJURY; ROLE OF GPR84

2019 ◽  
Vol 34 (Supplement_1) ◽  
Author(s):  
Lyne Gagnon ◽  
Jean-Francois Thibodeau ◽  
Chet Holterman ◽  
Marie-Pier Cloutier ◽  
Jean-Christophe Simard ◽  
...  
Keyword(s):  
Acute Kidney Injury ◽  
Systemic Inflammation ◽  
Renal Injury ◽  
Kidney Injury ◽  
Electrolyte Disturbances

scholarly journals Renalase and Biomarkers of Contrast-Induced Acute Kidney Injury

2015 ◽  
Vol 6 (1) ◽  
pp. 25-36 ◽  
Author(s):  
Maciej T. Wybraniec ◽  
Katarzyna Mizia-Stec
Keyword(s):  
Acute Kidney Injury ◽  
Renal Injury ◽  
Amine Oxidase ◽  
Kidney Injury ◽  
Cardiorenal Syndrome ◽  
Creatinine Concentration ◽  
Invasive Cardiology ◽  
Proximal Tubular ◽  
Novel Biomarkers

Background: Contrast-induced acute kidney injury (CI-AKI) remains one of the crucial issues related to the development of invasive cardiology. The massive use of contrast media exposes patients to a great risk of contrast-induced nephropathy and chronic kidney disease development, and increases morbidity and mortality rates. The serum creatinine concentration does not allow for a timely and accurate CI-AKI diagnosis; hence numerous other biomarkers of renal injury have been proposed. Renalase, a novel catecholamine-metabolizing amine oxidase, is synthesized mainly in proximal tubular cells and secreted into urine and blood. It is primarily engaged in the degradation of circulating catecholamines. Notwithstanding its key role in blood pressure regulation, renalase remains a potential CI-AKI biomarker, which was shown to be markedly downregulated in the aftermath of renal injury. In this sense, renalase appears to be the first CI-AKI marker revealing an actual loss of renal function and indicating disease severity. Summary: The purpose of this review is to summarize the contemporary knowledge about the application of novel biomarkers of CI-AKI and to highlight the potential role of renalase as a functional marker of contrast-induced renal injury. Key Messages: Renalase may constitute a missing biochemical link in the mutual interplay between kidney and cardiac pathology known as the cardiorenal syndrome.

scholarly journals The role of hepatocellular death and systemic inflammation in the development of acute kidney injury in acute decompensation of alcoholic liver cirrhosis

2021 ◽  
pp. 66-71
Author(s):  
A. S. Rodina ◽  
M. E. Shubina ◽  
I. V. Kurbatova ◽  
L. V. Topchieva ◽  
O. P. Dudanova
Keyword(s):  
Acute Kidney Injury ◽  
Systemic Inflammation ◽  
Kidney Injury ◽  
Alcoholic Liver Cirrhosis ◽  
Group I ◽  
Tnf Α ◽  
Acute Decompensation ◽  
Group Ii ◽  
Hepatocellular Death

The aim of the study was to assess the role of hepatocellular death and systemic inflammation in the development of acute kidney injury (AKI) in acute decompensation of alcoholic liver cirrhosis (AD ALC).Materials and methods. 125 patients with ALC were examined: 20 (16.0%) (group I) with signs of hepatorenal syndromeacute kidney injury (HRS-AKI) at the age of 57.13 ± 9,08 years, 13 men (65.0%) and 105 (84.0%) patients (group II) without such a syndrome at the age of 56.30 ± 9.6 years., 62 men (59.0%). Along with liver tests, a markers of hepatocyte apoptosis and cytokines were determined by ELISA: fragments of cytokeratin-18 (FCK-18) ("Biotech" Sweden), cytokines — TNF-α, IL-1β, IL-4, IL-6, IL-8 (“Vector-Best”, Russia). Grade and index of acute on chronic liver failure (ACLF) were determined using an on-line calculator (www.efclif.com/scientific-activity/score-calculators/clif-c-aclf).Results. The hepatocellular death indicators were significantly higher in patients of group I with HRS-AKI compared with patients of group II without HRS-AKI: FCK-18-1609.44 ± 542.79 U / l versus 975.77±607.59 U / l, bilirubin — 242.64 ± 98.14 pmol/l versus 145.09 ± 79.35 pmol/l, inflammation indicators — TNF-α — 9.28 ± 3,11 pg/ml versus 6.59 ± 2.21 pg/ml, IL-6-54.79 ± 17.7 pg/ml versus 36.71 ± 18.05 pg/ml, CRP — 49.68 ± 23.23 mg/l versus 22.07 ± 20.40 mg/l, leukocytes — 12.23 ± 3.28x109/l versus 8,66 ± 2,31x109/l (everywhere p <0.05). ACLF developed in all (100.0%) patients of group I, its grade was 2.73±0.76 and score — 56.33 ± 4.01; ACLF developed only in 37 (35,2%) patients of group II, its grade was1.05±0.24 (p<0,05) and score was 47.45 ± 4,80 (p <0.05).Conclusion. The development of HRS-AKI in patients with acute decompensation of ALC was associated with significantly higher rates of hepatocytic apoptosis, hyperbilirubinemia, systemic inflammation, frequency and severity of ACLF.

scholarly journals Kahweol Ameliorates Cisplatin-Induced Acute Kidney Injury through Pleiotropic Effects in Mice

Biomedicines ◽  
2020 ◽  
Vol 8 (12) ◽  
pp. 572
Author(s):  
Jung-Yeon Kim ◽  
Jungmin Jo ◽  
Jaechan Leem ◽  
Kwan-Kyu Park
Keyword(s):  
Oxidative Stress ◽  
Acute Kidney Injury ◽  
Renal Injury ◽  
Manganese Superoxide Dismutase ◽  
Immune Cell ◽  
Nicotinamide Adenine Dinucleotide Phosphate ◽  
Kidney Injury ◽  
Pleiotropic Effects ◽  
Induced Apoptosis ◽  
Vascular Adhesion

Cisplatin is an effective chemotherapeutic agent, but its clinical use is frequently limited by its nephrotoxicity. The pathogenesis of cisplatin-induced acute kidney injury (AKI) remains incompletely understood, but oxidative stress, tubular cell death, and inflammation are considered important contributors to cisplatin-induced renal injury. Kahweol is a natural diterpene extracted from coffee beans and has been shown to possess anti-oxidative and anti-inflammatory properties. However, its role in cisplatin-induced nephrotoxicity remains undetermined. Therefore, we investigated whether kahweol exerts a protective effect against cisplatin-induced renal injury. Additionally, its mechanisms were also examined. Administration of kahweol attenuated renal dysfunction and histopathological damage together with inhibition of oxidative stress in cisplatin-injected mice. Increased expression of nicotinamide adenine dinucleotide phosphate oxidase 4 and decreased expression of manganese superoxide dismutase and catalase after cisplatin treatment were significantly reversed by kahweol. Moreover, kahweol inhibited cisplatin-induced apoptosis and necroptosis in the kidneys. Finally, kahweol reduced inflammatory cytokine production and immune cell accumulation together with suppression of nuclear factor kappa-B pathway and downregulation of vascular adhesion molecules. Together, these results suggest that kahweol ameliorates cisplatin-induced renal injury via its pleiotropic effects and might be a potential preventive option against cisplatin-induced nephrotoxicity.

scholarly journals A zebrafish model of infection-associated acute kidney injury

2018 ◽  
Vol 315 (2) ◽  
pp. F291-F299 ◽  
Author(s):  
Xiaoyan Wen ◽  
Liyan Cui ◽  
Seth Morrisroe ◽  
Donald Maberry ◽  
David Emlet ◽  
...  
Keyword(s):  
Acute Kidney Injury ◽  
Unmet Need ◽  
Kidney Injury ◽  
Edwardsiella Tarda ◽  
Adult Zebrafish ◽  
Zebrafish Model ◽  
Pericardial Edema ◽  
Kidney Injury Molecule 1 ◽  
Dose Dependent

Sepsis-associated acute kidney injury (S-AKI) independently predicts mortality among critically ill patients. The role of innate immunity in this process is unclear, and there is an unmet need for S-AKI models to delineate the pathophysiological response. Mammals and zebrafish ( Danio rerio) share a conserved nephron structure and homologous innate immune systems, making the latter suitable for S-AKI research. We introduced Edwardsiella tarda to the zebrafish. Systemic E. tarda bacteremia resulted in sustained bacterial infection and dose-dependent mortality. A systemic immune reaction was characterized by increased mRNA expressions of il1b, tnfa, tgfb1a, and cxcl8-l1 ( P < 0.0001, P < 0.001, P < 0.001, and P < 0.01, respectively). Increase of host stress response genes ccnd1 and tp53 was observed at 24 h postinjection ( P < 0.0001 and P < 0.05, respectively). Moderate E. tarda infection induced zebrafish mortality of over 50% in larvae and 20% in adults, accompanied by pericardial edema in larvae and renal dysfunction in both larval and adult zebrafish. Expression of AKI markers insulin-like growth factor-binding protein-7 (IGFBP7), tissue inhibitor of metalloproteinases 2 (TIMP-2), and kidney injury molecule-1 (KIM-1) was found to be significantly increased in the septic animals at the transcription level ( P < 0.01, P < 0.05, and P < 0.05) and in nephric tubules compared with noninfected animals. In conclusion, we established a zebrafish model of S-AKI induced by E. tarda injection, with both larval and adult zebrafish showing nephron injury in the setting of infection.

Acute kidney injury secondary to renal large B-cell lymphoma: role of early renal biopsy

2010 ◽  
Vol 43 (1) ◽  
pp. 237-240 ◽  
Author(s):  
Suhail Al-Salam ◽  
Ahmad Shaaban ◽  
Maha Alketbi ◽  
Naveed U. Haq ◽  
Samra Abouchacra
Keyword(s):  
Acute Kidney Injury ◽  
B Cell ◽  
Renal Biopsy ◽  
Cell Lymphoma ◽  
Kidney Injury ◽  
B Cell Lymphoma ◽  
Large B Cell Lymphoma ◽  
Large B Cell
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