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  1. Article ; Online: p-Cresyl Sulfate.

    Gryp, Tessa / Vanholder, Raymond / Vaneechoutte, Mario / Glorieux, Griet

    Toxins

    2017  Volume 9, Issue 2

    Abstract: If chronic kidney disease (CKD) is associated with an impairment of kidney function, several uremic solutes are retained. Some of these exert toxic effects, which are called uremic toxins. ...

    Abstract If chronic kidney disease (CKD) is associated with an impairment of kidney function, several uremic solutes are retained. Some of these exert toxic effects, which are called uremic toxins.
    MeSH term(s) Animals ; Bacteria/metabolism ; Colon/microbiology ; Cresols/adverse effects ; Cresols/metabolism ; Dietary Proteins/metabolism ; Dysbiosis ; Fermentation ; Gastrointestinal Microbiome ; Humans ; Kidney/drug effects ; Kidney/metabolism ; Kidney/physiopathology ; Prognosis ; Protein Binding ; Renal Insufficiency, Chronic/chemically induced ; Renal Insufficiency, Chronic/metabolism ; Renal Insufficiency, Chronic/physiopathology ; Renal Insufficiency, Chronic/therapy ; Renal Replacement Therapy ; Risk Factors ; Sulfuric Acid Esters/adverse effects ; Sulfuric Acid Esters/metabolism
    Chemical Substances Cresols ; Dietary Proteins ; Sulfuric Acid Esters ; 4-cresol sulfate (56M34ZQY1S)
    Language English
    Publishing date 2017-01-29
    Publishing country Switzerland
    Document type Journal Article ; Review
    ZDB-ID 2518395-3
    ISSN 2072-6651 ; 2072-6651
    ISSN (online) 2072-6651
    ISSN 2072-6651
    DOI 10.3390/toxins9020052
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Associations of Indoxyl Sulfate and p-cresyl Sulfate with Serum Uncarboxylated Matrix γ-carboxyglutamate Protein in Chronic Kidney Disease Patients.

    Tang, Xiaofang / Liu, Di / Xia, Ming / Liu, Yu / Liu, Hong

    Current medicinal chemistry

    2024  

    Abstract: Background: Indoxyl sulfate (IS) and p-cresyl sulfate (PCS) are two important protein-bound uremic ... The serum level of ucMPG was associated with total IS (r = 0.456, p < 0.001) and total PCS (r =0.413, p < 0 ... of IS (β = 0.442, p <0.001), but not the level of PCS concentrations after adjusting ...

    Abstract Background: Indoxyl sulfate (IS) and p-cresyl sulfate (PCS) are two important protein-bound uremic retention solutes. Increased serum levels of IS and PCS are associated with cardiovascular calcification. Matrix γ-carboxyglutamate protein (MGP) is a potent inhibitor of vascular calcification and inactivated uncarboxylated MGP (ucMGP) is related to vascular calcification. Nevertheless, whether serum levels of IS and PCS are associated with the serum ucMGP level in chronic kidney disease (CKD) patients with different stages is unknown.
    Method: This cross-sectional study enrolled 90 patients in different stages of chronic kidney disease. Serum levels of IS and PCS were determined. The serum concentration of ucMGP was measured with an enzyme-linked immunosorbent assay. Independent associations between serum total IS and PCS with ucMGP were evaluated.
    Results: The mean serum level of ucMGP in participants of this study is 10.78±5.22 μg/mL. Serum levels of the two above-mentioned uremic toxins and ucMGP were elevated commensurately with deteriorating renal function. The serum level of ucMPG was associated with total IS (r = 0.456, p < 0.001) and total PCS (r =0.413, p < 0.001) levels. Multiple linear regression analysis showed that ucMGP was significantly related to levels of IS (β = 0.442, p <0.001), but not the level of PCS concentrations after adjusting for other confounding variables.
    Conclusion: Our study showed that a higher serum IS level was independently associated with ucMGP in deteriorating CKD. Therefore, it would be worthwhile to investigate the effect of IS on ucMGP in the pathogenesis of vascular calcification in future studies.
    Language English
    Publishing date 2024-01-12
    Publishing country United Arab Emirates
    Document type Journal Article
    ZDB-ID 1319315-6
    ISSN 1875-533X ; 0929-8673
    ISSN (online) 1875-533X
    ISSN 0929-8673
    DOI 10.2174/0109298673272856231225173757
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: P-cresyl sulfate causes mitochondrial hyperfusion in H9C2 cardiomyoblasts.

    Huang, Tien-Hung / Yip, Hon-Kan / Sun, Cheuk-Kwan / Chen, Yi-Ling / Yang, Chih-Chao / Lee, Fan-Yen

    Journal of cellular and molecular medicine

    2020  Volume 24, Issue 15, Page(s) 8379–8390

    Abstract: Increased circulating level of uraemic solute p-cresyl sulphate (PCS) in patients ...

    Abstract Increased circulating level of uraemic solute p-cresyl sulphate (PCS) in patients with chronic kidney disease (CKD) is known to increase myocardial burden relevant to mitochondrial abnormalities. This study aimed at investigating mitochondrial response to PCS in H9C2 cardiomyoblasts. H9C2 cardiomyoblasts were treated with four different concentrations of PCS (3.125, 6.25, 12.5 and 25.0 µg/mL) to study the changes in cell proliferation, cell size and mitochondrial parameters including morphology, respiration, biogenesis and membrane potential. The lowest effective dose of PCS (6.25 µg/mL) induced mitochondrial hyperfusion with enhanced mitochondrial connectivity, mitochondrial oxygen consumption rates, mitochondrial mass, mitochondrial DNA copy number and increased volume of cardiomyoblasts. After PCS treatment, phosphorylation of energy-sensing adenosine monophosphate-activated protein kinase (AMPK) was increased without induction of apoptosis. In contrast, mitochondrial mass was recovered after AMPK silencing. Additionally, mitochondrial hyperfusion and cell volume were reversed after cessation of PCS treatment. The results of the present study showed that low-level PCS not only caused AMPK-dependent mitochondrial hyperfusion but also induced cell enlargement in H9C2 cardiomyoblasts in vitro.
    MeSH term(s) AMP-Activated Protein Kinases/metabolism ; Animals ; Apoptosis/drug effects ; Cell Line ; Cell Proliferation/drug effects ; Cresols/pharmacology ; Membrane Potential, Mitochondrial/drug effects ; Mitochondria/drug effects ; Mitochondria/metabolism ; Myocytes, Cardiac/drug effects ; Myocytes, Cardiac/metabolism ; Oxygen Consumption/drug effects ; Rats ; Sulfuric Acid Esters/pharmacology
    Chemical Substances Cresols ; Sulfuric Acid Esters ; 4-cresol sulfate (56M34ZQY1S) ; AMP-Activated Protein Kinases (EC 2.7.11.31)
    Language English
    Publishing date 2020-07-08
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2074559-X
    ISSN 1582-4934 ; 1582-4934 ; 1582-1838
    ISSN (online) 1582-4934
    ISSN 1582-4934 ; 1582-1838
    DOI 10.1111/jcmm.15303
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Renocardiac Effects of p-Cresyl Sulfate Administration in Acute Kidney Injury Induced by Unilateral Ischemia and Reperfusion Injury

    Falconi, Carlos Alexandre / Fogaça-Ruiz, Fernanda / da Silva, Jéssica Verônica / Neres-Santos, Raquel Silva / Sanz, Carmen Lucía / Nakao, Lia Sumie / Stinghen, Andréa Emília Marques / Junho, Carolina Victoria Cruz / Carneiro-Ramos, Marcela Sorelli

    Toxins

    2023  Volume 15, Issue 11

    Abstract: ... and the retention of uremic toxins like p-cresyl sulfate (PCS) remain incompletely understood ...

    Abstract The precise mechanisms underlying the cardiovascular complications due to acute kidney injury (AKI) and the retention of uremic toxins like p-cresyl sulfate (PCS) remain incompletely understood. The objective of this study was to evaluate the renocardiac effects of PCS administration in animals subjected to AKI induced by ischemia and reperfusion (IR) injury. C57BL6 mice were subjected to distinct protocols: (i) administration with PCS (20, 40, or 60 mg/L/day) for 15 days and (ii) AKI due to unilateral IR injury associated with PCS administration for 15 days. The 20 mg/L dose of PCS led to a decrease in renal mass, an increase in the gene expression of Cystatin C and kidney injury molecule 1 (KIM-1), and a decrease in the α-actin in the heart. During AKI, PCS increased the renal injury biomarkers compared to control; however, it did not exacerbate these markers. Furthermore, PCS did not enhance the cardiac hypertrophy observed after 15 days of IR. An increase, but not potentialized, in the cardiac levels of interleukin (IL)-1β and IL-6 in the IR group treated with PCS, as well as in the injured kidney, was also noticed. In short, PCS administration did not intensify kidney injury, inflammation, and cardiac outcomes after AKI.
    MeSH term(s) Animals ; Mice ; Sulfates ; Mice, Inbred C57BL ; Kidney ; Acute Kidney Injury ; Ischemia/complications ; Reperfusion Injury/complications
    Chemical Substances Sulfates
    Language English
    Publishing date 2023-11-10
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2518395-3
    ISSN 2072-6651 ; 2072-6651
    ISSN (online) 2072-6651
    ISSN 2072-6651
    DOI 10.3390/toxins15110649
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: p-Cresyl Sulfate

    Tessa Gryp / Raymond Vanholder / Mario Vaneechoutte / Griet Glorieux

    Toxins, Vol 9, Iss 2, p

    2017  Volume 52

    Abstract: ... solutes are retained. Some of these exert toxic effects, which are called uremic toxins. p-Cresyl sulfate ...

    Abstract If chronic kidney disease (CKD) is associated with an impairment of kidney function, several uremic solutes are retained. Some of these exert toxic effects, which are called uremic toxins. p-Cresyl sulfate (pCS) is a prototype protein-bound uremic toxin to which many biological and biochemical (toxic) effects have been attributed. In addition, increased levels of pCS have been associated with worsening outcomes in CKD patients. pCS finds its origin in the intestine where gut bacteria metabolize aromatic amino acids, such as tyrosine and phenylalanine, leading to phenolic end products, of which pCS is one of the components. In this review we summarize the biological effects of pCS and its metabolic origin in the intestine. It appears that, according to in vitro studies, the intestinal bacteria generating phenolic compounds mainly belong to the families Bacteroidaceae, Bifidobacteriaceae, Clostridiaceae, Enterobacteriaceae, Enterococcaceae, Eubacteriaceae, Fusobacteriaceae, Lachnospiraceae, Lactobacillaceae, Porphyromonadaceae, Staphylococcaceae, Ruminococcaceae, and Veillonellaceae. Since pCS remains difficult to remove by dialysis, the gut microbiota could be a future target to decrease pCS levels and its toxicity, even at earlier stages of CKD, aiming at slowing down the progression of the disease and decreasing the cardiovascular burden.
    Keywords p-cresyl sulfate ; intestinal microbiota ; chronic kidney disease ; Medicine ; R
    Subject code 610
    Language English
    Publishing date 2017-01-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  6. Article ; Online: Possible Effects of Uremic Toxins p-Cresol, Indoxyl Sulfate, p-Cresyl Sulfate on the Development and Progression of Colon Cancer in Patients with Chronic Renal Failure.

    Di Paola, Rossella / De, Ananya / Izhar, Raafiah / Abate, Marianna / Zappavigna, Silvia / Capasso, Anna / Perna, Alessandra F / La Russa, Antonella / Capasso, Giovambattista / Caraglia, Michele / Simeoni, Mariadelina

    Genes

    2023  Volume 14, Issue 6

    Abstract: ... and p-Cresyl Sulfate (p-CS). Since these metabolites are normally eliminated in the urine, they tend ... accumulation in the gut and in the blood of several substances, such as p-Cresol (p-C), Indoxyl Sulfate (IS ... to accumulate in the blood of CKD patients proportionally to renal impairment. P-CS, IS and p-C play ...

    Abstract Chronic kidney disease (CKD) induces several systemic effects, including the accumulation and production of uremic toxins responsible for the activation of various harmful processes. Gut dysbiosis has been widely described in CKD patients, even in the early stages of the disease. The abundant discharge of urea and other waste substances into the gut favors the selection of an altered intestinal microbiota in CKD patients. The prevalence of bacteria with fermentative activity leads to the release and accumulation in the gut and in the blood of several substances, such as p-Cresol (p-C), Indoxyl Sulfate (IS) and p-Cresyl Sulfate (p-CS). Since these metabolites are normally eliminated in the urine, they tend to accumulate in the blood of CKD patients proportionally to renal impairment. P-CS, IS and p-C play a fundamental role in the activation of various pro-tumorigenic processes, such as chronic systemic inflammation, the increase in the production of free radicals and immune dysfunction. An up to two-fold increase in the incidence of colon cancer development in CKD has been reported in several studies, although the pathogenic mechanisms explaining this compelling association have not yet been described. Based on our literature review, it appears likely the hypothesis of a role of p-C, IS and p-CS in colon cancer development and progression in CKD patients.
    MeSH term(s) Humans ; Indican ; Uremic Toxins ; Sulfates ; Kidney Failure, Chronic ; Renal Insufficiency, Chronic/metabolism ; Colonic Neoplasms ; Inflammation
    Chemical Substances Indican (N187WK1Y1J) ; Uremic Toxins ; 4-cresol (1MXY2UM8NV) ; Sulfates ; cresol (GF3CGH8D7Z)
    Language English
    Publishing date 2023-06-13
    Publishing country Switzerland
    Document type Journal Article ; Review
    ZDB-ID 2527218-4
    ISSN 2073-4425 ; 2073-4425
    ISSN (online) 2073-4425
    ISSN 2073-4425
    DOI 10.3390/genes14061257
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: p-Cresyl Sulfate Predicts Ischemic Stroke among Patients on Hemodialysis

    Xiao Tan / Jianzhou Zou / Fangfang Xiang / Pan Zhang / Bo Shen / Yaqiong Wang / Xiaoqiang Ding / Xuesen Cao

    Disease Markers, Vol

    A Prospective Cohort Study

    2022  Volume 2022

    Abstract: ... at elucidating the association between p-cresyl sulfate and the risk of ischemic stroke in hemodialysis patients ... divided into 2 groups based on plasma p-cresyl sulfate level. The primary end point was the first episode ... of ischemic stroke during follow-up. The association between p-cresyl sulfate and ischemic stroke incidence ...

    Abstract Background and Purpose. Hemodialysis patients face a higher risk of ischemic stroke. p-Cresyl sulfate is a typical protein-bound uremic toxin that contributes to chronic kidney disease and cardiovascular disease progression, as well as mortality in hemodialysis patients. The present study was aimed at elucidating the association between p-cresyl sulfate and the risk of ischemic stroke in hemodialysis patients. Method. Patients on hemodialysis over 6 months were enrolled in this prospective cohort study and were divided into 2 groups based on plasma p-cresyl sulfate level. The primary end point was the first episode of ischemic stroke during follow-up. The association between p-cresyl sulfate and ischemic stroke incidence was analyzed by Kaplan-Meier method and Cox proportional hazard model. Results. 220 patients were enrolled in this study. 44 patients experienced episodes of first ischemic stroke during follow-up for 87.8 (47.6-119.5) months. Kaplan-Meier analysis demonstrated that the incidence of ischemic stroke in the high p-cresyl sulfate group was significantly higher than that in the low p-cresyl sulfate group (Log-Rank P=0.007). Cox regression analysis as well proved that p-cresyl sulfate level was significantly associated with the first incidence of ischemic stroke (HR (hazard ratio) 2.332, 95% CI (95% confidence interval) 1.236-4.399, P=0.009). After being adjusted for other confounding risk factors, the results persisted significant (model 11: HR 2.061, 95% CI 1.030-4.125, P=0.041). Conclusion. Plasma p-cresyl sulfate predicts the first incidence of ischemic stroke in hemodialysis patients.
    Keywords Medicine (General) ; R5-920
    Subject code 616
    Language English
    Publishing date 2022-01-01T00:00:00Z
    Publisher Hindawi Limited
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  8. Article: Contribution of Hypoalbuminemia and Anemia to the Prognostic Value of Plasma p-Cresyl Sulfate and p-Cresyl Glucuronide for Cardiovascular Outcome in Chronic Kidney Disease.

    Verbeke, Francis / Vanholder, Raymond / Van Biesen, Wim / Glorieux, Griet

    Journal of personalized medicine

    2022  Volume 12, Issue 8

    Abstract: ... cresyl sulfate (pCS) and p-cresyl glucuronide (pCG) and their predictive value for cardiovascular ... by serum albumin and hemoglobin. The potential association of serum albumin and hemoglobin with free levels of p ...

    Abstract Free plasma concentrations of protein-bound uremic toxins (PBUTs) may be influenced by serum albumin and hemoglobin. The potential association of serum albumin and hemoglobin with free levels of p-cresyl sulfate (pCS) and p-cresyl glucuronide (pCG) and their predictive value for cardiovascular morbidity and mortality were explored. A total of 523 non-dialysis chronic kidney disease (CKD) stages G1-G5 patients were prospectively followed for the occurrence of fatal or non-fatal cardiovascular events over a 5.5-year period. A negative correlation was found between albumin and between hemoglobin, and both total and free pCS and pCG. In multiple linear regression, PBUTs were negatively associated with eGFR (estimated glomerular filtration rate) and hemoglobin but not albumin. In multivariate Cox regression analysis, albumin was a predictor of outcome, independent of pCS and pCG, without interactions between albumin and pCS or pCG. The relation of low hemoglobin with adverse outcome was lost when albumin was entered into the model. Lower concentrations of pCS and pCG are associated with higher serum albumin and hemoglobin. This may indicate that there are two pathways in the blood that potentially contribute to attenuating the vasculotoxic effects of these PBUTs. The association of PBUTs with cardiovascular risk is not explained by albumin levels, which remains a strong and independent predictor for adverse outcome.
    Language English
    Publishing date 2022-07-28
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2662248-8
    ISSN 2075-4426
    ISSN 2075-4426
    DOI 10.3390/jpm12081239
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: p-Cresyl Sulfate Predicts Ischemic Stroke among Patients on Hemodialysis: A Prospective Cohort Study.

    Tan, Xiao / Zou, Jianzhou / Xiang, Fangfang / Zhang, Pan / Shen, Bo / Wang, Yaqiong / Ding, Xiaoqiang / Cao, Xuesen

    Disease markers

    2022  Volume 2022, Page(s) 1358419

    Abstract: ... were divided into 2 groups based on plasma p-cresyl sulfate level. The primary end point was the first ... episode of ischemic stroke during follow-up. The association between p-cresyl sulfate and ischemic stroke ... in the high p-cresyl sulfate group was significantly higher than that in the low p-cresyl sulfate group (Log ...

    Abstract Method: Patients on hemodialysis over 6 months were enrolled in this prospective cohort study and were divided into 2 groups based on plasma p-cresyl sulfate level. The primary end point was the first episode of ischemic stroke during follow-up. The association between p-cresyl sulfate and ischemic stroke incidence was analyzed by Kaplan-Meier method and Cox proportional hazard model.
    Results: 220 patients were enrolled in this study. 44 patients experienced episodes of first ischemic stroke during follow-up for 87.8 (47.6-119.5) months. Kaplan-Meier analysis demonstrated that the incidence of ischemic stroke in the high p-cresyl sulfate group was significantly higher than that in the low p-cresyl sulfate group (Log-Rank
    Conclusion: Plasma p-cresyl sulfate predicts the first incidence of ischemic stroke in hemodialysis patients.
    MeSH term(s) Adult ; Aged ; Cohort Studies ; Cresols/blood ; Female ; Humans ; Incidence ; Ischemic Stroke/epidemiology ; Male ; Middle Aged ; Predictive Value of Tests ; Prospective Studies ; Renal Dialysis ; Sulfuric Acid Esters/blood
    Chemical Substances Cresols ; Sulfuric Acid Esters ; 4-cresol sulfate (56M34ZQY1S)
    Language English
    Publishing date 2022-01-31
    Publishing country United States
    Document type Journal Article
    ZDB-ID 604951-5
    ISSN 1875-8630 ; 0278-0240
    ISSN (online) 1875-8630
    ISSN 0278-0240
    DOI 10.1155/2022/1358419
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Curcumin enhances p-cresyl sulfate-induced cytotoxic effects on renal tubular cells.

    Wei, Chyou-Wei / Wu, Tsai-Kun / Wu, Shu-Cing / Chen, Yi-Lin / Pan, Ying-Ru / Chien, Yi-Chung / Wu, Jia-Yan / Yu, Yung-Lung / Yiang, Giou-Teng

    International journal of medical sciences

    2022  Volume 19, Issue 7, Page(s) 1138–1146

    Abstract: Indoxyl sulfate (IS) and p-cresyl sulfate (PCS), protein-bound uremic toxins, can induce ...

    Abstract Indoxyl sulfate (IS) and p-cresyl sulfate (PCS), protein-bound uremic toxins, can induce oxidative stress and cause renal disease progression. However, the different cytotoxic effects on renal cells between IS and PCS are not stated. Due to uremic toxins are generally found in CKD patients, the mechanisms of uremic toxins-induced renal injury are required to study. Curcumin has anti-oxidant, anti-inflammatory and anti-apoptotic effects which may be potential used to protect against renal damage. In contrast, curcumin also exert cytotoxic effects on various cells. In addition, curcumin may reduce or enhance cytotoxicity combined with different chemicals treatments. However, whether curcumin may influence uremic toxins-induced renal injury is unclear. The goal of this study is to compare the different cytotoxic effects on renal cells between IS and PCS treatment, as well as the synergistic or antagonistic effects by combination treatments with curcumin and PCS. Our experimental result shows the PCS exerts a stronger antiproliferative effect on renal tubular cells than IS treatment. In addition, our study firstly demonstrates that curcumin enhances PCS-induced cell cytotoxicity through caspase-dependent apoptotic pathway and cell cycle alteration.
    MeSH term(s) Cresols/metabolism ; Curcumin/pharmacology ; Curcumin/therapeutic use ; Humans ; Indican/metabolism ; Indican/toxicity ; Kidney/metabolism ; Renal Insufficiency, Chronic/metabolism ; Sulfates ; Sulfuric Acid Esters/metabolism ; Sulfuric Acid Esters/toxicity
    Chemical Substances Cresols ; Sulfates ; Sulfuric Acid Esters ; Curcumin (IT942ZTH98) ; Indican (N187WK1Y1J)
    Language English
    Publishing date 2022-06-27
    Publishing country Australia
    Document type Journal Article
    ZDB-ID 2151424-0
    ISSN 1449-1907 ; 1449-1907
    ISSN (online) 1449-1907
    ISSN 1449-1907
    DOI 10.7150/ijms.72646
    Database MEDical Literature Analysis and Retrieval System OnLINE

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