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  • 1
    In: Clinical Kidney Journal, Oxford University Press (OUP), Vol. 15, No. 3 ( 2022-02-22), p. 372-387
    Abstract: Chronic kidney disease (CKD) is a silent and poorly known killer. The current concept of CKD is relatively young and uptake by the public, physicians and health authorities is not widespread. Physicians still confuse CKD with chronic kidney insufficiency or failure. For the wider public and health authorities, CKD evokes kidney replacement therapy (KRT). In Spain, the prevalence of KRT is 0.13%. Thus health authorities may consider CKD a non-issue: very few persons eventually need KRT and, for those in whom kidneys fail, the problem is ‘solved’ by dialysis or kidney transplantation. However, KRT is the tip of the iceberg in the burden of CKD. The main burden of CKD is accelerated ageing and premature death. The cut-off points for kidney function and kidney damage indexes that define CKD also mark an increased risk for all-cause premature death. CKD is the most prevalent risk factor for lethal coronavirus disease 2019 (COVID-19) and the factor that most increases the risk of death in COVID-19, after old age. Men and women undergoing KRT still have an annual mortality that is 10- to 100-fold higher than similar-age peers, and life expectancy is shortened by ~40 years for young persons on dialysis and by 15 years for young persons with a functioning kidney graft. CKD is expected to become the fifth greatest global cause of death by 2040 and the second greatest cause of death in Spain before the end of the century, a time when one in four Spaniards will have CKD. However, by 2022, CKD will become the only top-15 global predicted cause of death that is not supported by a dedicated well-funded Centres for Biomedical Research (CIBER) network structure in Spain. Realizing the underestimation of the CKD burden of disease by health authorities, the Decade of the Kidney initiative for 2020–2030 was launched by the American Association of Kidney Patients and the European Kidney Health Alliance. Leading Spanish kidney researchers grouped in the kidney collaborative research network Red de Investigación Renal have now applied for the Redes de Investigación Cooperativa Orientadas a Resultados en Salud (RICORS) call for collaborative research in Spain with the support of the Spanish Society of Nephrology, Federación Nacional de Asociaciones para la Lucha Contra las Enfermedades del Riñón and ONT: RICORS2040 aims to prevent the dire predictions for the global 2040 burden of CKD from becoming true.
    Type of Medium: Online Resource
    ISSN: 2048-8505 , 2048-8513
    Language: English
    Publisher: Oxford University Press (OUP)
    Publication Date: 2022
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  • 2
    In: American Journal of Epidemiology, Oxford University Press (OUP), Vol. 188, No. 6 ( 2019-06-01), p. 991-1012
    Type of Medium: Online Resource
    ISSN: 0002-9262 , 1476-6256
    Language: English
    Publisher: Oxford University Press (OUP)
    Publication Date: 2019
    detail.hit.zdb_id: 2030043-8
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  • 3
    In: Cancer Research, American Association for Cancer Research (AACR), Vol. 77, No. 13_Supplement ( 2017-07-01), p. 4238-4238
    Abstract: Metabolomics is a systems approach to the biology of health and disease and an ‘-omics’ discipline that measures small metabolites representing end products of a variety of metabolic and cellular processes as reflected in available biological specimens (e.g. blood, urine, saliva, feces and tissue). As an increasingly more common approach used for epidemiologic and clinical studies, metabolomics has the potential to improve disease risk assessment, screening, diagnosis, prognosis and predictive response to therapy, as well as provide disease mechanistic insight and help to establish criteria for causation. It is timely to establish mechanisms for leveraging existing resources and data for novel biomarker discovery using metabolomics approaches. To this end, the National Institutes of Health COnsortium of METabolomics Studies (COMETS) was established in 2014 (http://epi.grants.cancer.gov/comets/), and currently includes 34 prospective cohorts and 2 consortia from the United States, Europe, Asia and South America. The COMETS mission is to promote collaborations among prospective cohort studies that follow participants for a range of outcomes and perform metabolomic profiling of individuals. COMETS aims to facilitate an open exchange of ideas, knowledge, and results to accelerate a shared goal of identifying metabolomic profiles associated with chronic disease phenotypes (e.g. heart disease, diabetes, cancer). The structure of COMETS includes a steering committee with one representative from each participating cohort/consortium and a number of working groups, including age analysis, data harmonization, statistics, and trainee. In November 2016, COMETS held their inaugural scientific meeting. As a result of this meeting, more working groups are currently being established to support additional interests/projects among the consortium members. Here we further describe the COMETS structure, including preliminary descriptive data, which aims to advance the use and impact of metabolite profiling in population-based research. Citation Format: Rachael Z. Stolzenberg-Solomon, Steven Moore, Crnelia Ulrich, Elizabeth Poole, Marinella Temprosa, Mukesh Verma, Demetrius Albanes, Clara Barrios Barrera, Eric Boerwinkle, Juan P. Casas, Clary Clish, Robert Gerszten, Christian Gieger, Marc Gunter, Sei Harada, Tamara Harris, David Herrington, Ann Hsing, Mattias Johannson, Claudia Langenberg, Jessica Lasky-Su, Loic Le Marchand, Charles Matthews, Cristina Menni, Matej Oresic, Eric Orwoll, Alexandre Pereira, Kathyrn Rexrode, Svati Shah, Xiao-ou Shu, Victoria Stevens, Bing Yu, Hua Zhao, Krista Zanetti. COnsortium for METabolomics Studies (COMETS): leveraging resources to accelerate scientific discovery [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2017; 2017 Apr 1-5; Washington, DC. Philadelphia (PA): AACR; Cancer Res 2017;77(13 Suppl):Abstract nr 4238. doi:10.1158/1538-7445.AM2017-4238
    Type of Medium: Online Resource
    ISSN: 0008-5472 , 1538-7445
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    Language: English
    Publisher: American Association for Cancer Research (AACR)
    Publication Date: 2017
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  • 4
    In: The Lancet Infectious Diseases, Elsevier BV, Vol. 21, No. 6 ( 2021-06), p. 783-792
    Type of Medium: Online Resource
    ISSN: 1473-3099
    Language: English
    Publisher: Elsevier BV
    Publication Date: 2021
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  • 5
    In: Clinical Microbiology and Infection, Elsevier BV, Vol. 26, No. 11 ( 2020-11), p. 1525-1536
    Type of Medium: Online Resource
    ISSN: 1198-743X
    Language: English
    Publisher: Elsevier BV
    Publication Date: 2020
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  • 6
    Online Resource
    Online Resource
    Oxford University Press (OUP) ; 2023
    In:  Nephrology Dialysis Transplantation Vol. 38, No. Supplement_1 ( 2023-06-14)
    In: Nephrology Dialysis Transplantation, Oxford University Press (OUP), Vol. 38, No. Supplement_1 ( 2023-06-14)
    Abstract: In diabetic patients, hyperglycemia has been associated with a hypoxic state that contributes to an increased rate of morbidity due to Acute Kidney Failure (AKI). For this reason, we are interested in studying the molecular mechanisms involved in the development of AKI to contribute to the search for effective therapies that can help prevent these episodes. We focused on ADAM17, a disintegrin and metalloproteinase that sheds the ectodomains of cell surface proteins, among which inflammatory cytokines stand out. In an animal model, we showed that the absence of ADAM17 in the renal tubule reduces protein expression related to fibrosis and inflammation induced by diabetes. In this context, we aimed to study the role of ADAM17 in modifying the expression of inflammatory molecules regulated by interferon (IFN) in renal proximal tubule cells subjected to hyperglycemic stress. In this study, we analyzed the effect of ADAM17 deletion in human renal tubular cells (HKC-8) incubated in high-glucose medium and subjected to hypoxia. Method ADAM17 was depleted using CRISPR/Cas9 (ADAM17-KO). Cells were incubated for 6 h or 24 h with high (35 mM HG) or normal (5.5 mM NG) glucose concentrations and were subjected to hypoxia plus 2h re-oxygenation (HIPX). Gene expression of several IFN-regulated inflammatory markers (IL6, IL8, CXCL10, ISG15, IL1a, IL1b, IL12A, CCL5, and CCL2) was determined in wild-type (WT) and ADAM17-KO cells. Results The absence of ADAM17 in HKC-8 cells induced changes in the mRNA expression of genes controlled by IFN, which is accentuated by the hyperglycemic stimulus. Under hypoxic and re-oxygenation conditions, these changes were in the same line, with more discrete values compared to control cells. TNFa, CXCL10 and LNC2 were the most relevant genes reduced in injury conditions in the ADAM17-KO cell line. Conclusion ADAM17 deletion modulates the expression of most IFN-regulated genes that could undergo post-transcriptional changes and subsequently act as an acute mechanism of protection from injury. The results show that ADAM17 plays a major role in the underlying inflammatory response to acute kidney injury, indicating its potential as a therapeutic target. The analysis of circulating proteins will provide information about this process to better understand the mechanism of action of ADAM17 in the protection of renal tubular damage.
    Type of Medium: Online Resource
    ISSN: 0931-0509 , 1460-2385
    Language: English
    Publisher: Oxford University Press (OUP)
    Publication Date: 2023
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  • 7
    In: Stroke, Ovid Technologies (Wolters Kluwer Health), Vol. 52, No. 5 ( 2021-05), p. 1545-1556
    Abstract: Chronic kidney disease with reduced estimated glomerular filtration rate or elevated albuminuria increases risk for ischemic and hemorrhagic stroke. This study assessed the effects of sodium glucose cotransporter 2 inhibitors (SGLT2i) on stroke and atrial fibrillation/flutter (AF/AFL) from CREDENCE (Canagliflozin and Renal Events in Diabetes With Established Nephropathy Clinical Evaluation) and a meta-analysis of large cardiovascular outcome trials (CVOTs) of SGLT2i in type 2 diabetes mellitus. Methods: CREDENCE randomized 4401 participants with type 2 diabetes mellitus and chronic kidney disease to canagliflozin or placebo. Post hoc, we estimated effects on fatal or nonfatal stroke, stroke subtypes, and intermediate markers of stroke risk including AF/AFL. Stroke and AF/AFL data from 3 other completed large CVOTs and CREDENCE were pooled using random-effects meta-analysis. Results: In CREDENCE, 142 participants experienced a stroke during follow-up (10.9/1000 patient-years with canagliflozin, 14.2/1000 patient-years with placebo; hazard ratio [HR], 0.77 [95% CI, 0.55–1.08] ). Effects by stroke subtypes were: ischemic (HR, 0.88 [95% CI, 0.61–1.28]; n=111), hemorrhagic (HR, 0.50 [95% CI, 0.19–1.32] ; n=18), and undetermined (HR, 0.54 [95% CI, 0.20–1.46]; n=17). There was no clear effect on AF/AFL (HR, 0.76 [95% CI, 0.53–1.10] ; n=115). The overall effects in the 4 CVOTs combined were: total stroke (HR pooled , 0.96 [95% CI, 0.82–1.12]), ischemic stroke (HR pooled , 1.01 [95% CI, 0.89–1.14]), hemorrhagic stroke (HR pooled , 0.50 [95% CI, 0.30–0.83]), undetermined stroke (HR pooled , 0.86 [95% CI, 0.49–1.51]), and AF/AFL (HR pooled , 0.81 [95% CI, 0.71–0.93]). There was evidence that SGLT2i effects on total stroke varied by baseline estimated glomerular filtration rate ( P =0.01), with protection in the lowest estimated glomerular filtration rate ( 〈 45 mL/min/1.73 m 2 ]) subgroup (HR pooled , 0.50 [95% CI, 0.31–0.79]). Conclusions: Although we found no clear effect of SGLT2i on total stroke in CREDENCE or across trials combined, there was some evidence of benefit in preventing hemorrhagic stroke and AF/AFL, as well as total stroke for those with lowest estimated glomerular filtration rate. Future research should focus on confirming these data and exploring potential mechanisms. Registration: URL: https://www.clinicaltrials.gov ; Unique identifier: NCT02065791.
    Type of Medium: Online Resource
    ISSN: 0039-2499 , 1524-4628
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    Language: English
    Publisher: Ovid Technologies (Wolters Kluwer Health)
    Publication Date: 2021
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  • 8
    In: Nephrology Dialysis Transplantation, Oxford University Press (OUP), Vol. 38, No. Supplement_1 ( 2023-06-14)
    Abstract: Transcriptome analysis in kidney tissue from lupus nephritis patients (LN) provide useful information about gene expression. We designed a pilot study in paraffin-embedded kidney tissue (FFPE) from LN patients to evaluate differences between gene expression at diagnosis (kidney biopsy diagnosis) and 2 years after achieve a complete renal response (protocol kidney biopsy). We evaluated if transcriptome analysis results could be verified through immunofluorescence staining (IF) in kidney biopsies (diagnosis biopsy vs protocol biopsy). Method We included diagnosis and protocol biopsies from 16 LN patients with class III and/or IV. All patients received prednisone (0.5 mg/kg) plus mycophenolic acid. Complete renal remission was defined as normal renal function, uPCOR & lt; 300 mg/gr and inactive urine sediment. RNA Sequencing (RNA-Seq) was performed in FFPE, Human MSigDB Collections were used for gene enrichment analysis and Gene sets derived from the Biological Process Gene Ontology (GO) V7.2 is the library used in the study. Results 16 LN patients were included, Class III (43.8%), Class IV (43.8%) and Mixed Class (12.5%). 100% patients were women and Caucasian with mean age 40.9±7.1 years. RNA-Seq showed 2 overexpressed groups of genes (GO) in diagnosis biopsies, expression of this GO was not detected in protocol biopsies: GO-Complement_activation (NES 2.26, p = 4.2E -0.5): Properdin, Ficolin, C3, Factor B, C3AR1, C4 y CDC59. GO- Humoral_Inmune_Response_Mediated_Circulating_Inmunoglobulin (NES 2.10, p = 7,6E -0.6): IgG1, IgG2, IgA, chemokine receptors 2 y 7 and receptor 13 TNF. Results were verified using IF staining in kidney biopsies, in protocol biopsies were observed a significant reduction in C1q and C3 complement proteins staining: C1q (78% vs 22.2%, p = 0,006), C3 (73.3% vs 27.8%, p = 0.005); results in immunoglobulins staining also agree with transcriptome analysis results, so that we observed significant reduction in IgA and IgG: IgG (69% vs 36.4%, p = 0.009) and IgA (83.3% vs 16.7%, p = 0.02) while IgM staining not showed differences between diagnosis biopsy and protocol biopsy (43.8% vs 45.5%). Conclusion Transcriptome analysis in kidney tissue from LN patients, identified complement proteins and humoral mediators overexpressed at LN diagnosis and infraexpressed at complete renal remission; the results could help nephrologist to investigate the role of these protein as LN biomarkers.
    Type of Medium: Online Resource
    ISSN: 0931-0509 , 1460-2385
    Language: English
    Publisher: Oxford University Press (OUP)
    Publication Date: 2023
    detail.hit.zdb_id: 1465709-0
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  • 9
    In: Scientific Reports, Springer Science and Business Media LLC, Vol. 11, No. 1 ( 2021-06-21)
    Abstract: The aim was to assess the ability of nasopharyngeal SARS-CoV-2 viral load at first patient’s hospital evaluation to predict unfavorable outcomes. We conducted a prospective cohort study including 321 adult patients with confirmed COVID-19 through RT-PCR in nasopharyngeal swabs. Quantitative Synthetic SARS-CoV-2 RNA cycle threshold values were used to calculate the viral load in log 10 copies/mL. Disease severity at the end of follow up was categorized into mild, moderate, and severe. Primary endpoint was a composite of intensive care unit (ICU) admission and/or death (n = 85, 26.4%). Univariable and multivariable logistic regression analyses were performed. Nasopharyngeal SARS-CoV-2 viral load over the second quartile (≥ 7.35 log 10 copies/mL, p  = 0.003) and second tertile (≥ 8.27 log 10 copies/mL, p  = 0.01) were associated to unfavorable outcome in the unadjusted logistic regression analysis. However, in the final multivariable analysis, viral load was not independently associated with an unfavorable outcome. Five predictors were independently associated with increased odds of ICU admission and/or death: age ≥ 70 years, SpO 2 , neutrophils  〉  7.5 × 10 3 /µL, lactate dehydrogenase ≥ 300 U/L, and C-reactive protein ≥ 100 mg/L. In summary, nasopharyngeal SARS-CoV-2 viral load on admission is generally high in patients with COVID-19, regardless of illness severity, but it cannot be used as an independent predictor of unfavorable clinical outcome.
    Type of Medium: Online Resource
    ISSN: 2045-2322
    Language: English
    Publisher: Springer Science and Business Media LLC
    Publication Date: 2021
    detail.hit.zdb_id: 2615211-3
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  • 10
    In: Nephrology Dialysis Transplantation, Oxford University Press (OUP), Vol. 36, No. Supplement_1 ( 2021-05-29)
    Abstract: Acute renal failure (AKI) associated to rhabdomyolysis conditions a worse prognosis in short-term, its implication in the long-term renal function has been less evaluated. Method Retrospective analysis of patients diagnosed with rhabdomyolysis defined by creatinine kinase & gt; 5000 IU/L between 2015-2019. Basal and 12-month renal function was evaluated. AKI was classified as either non-severe (AKI-KDIGO 1/2) or severe (AKI-KDIGO 3). Results Eighty-seven patients were included, 25 (28.74%) had some degree of chronic kidney disease (CKD) on admission. 56 (64.37%) had AKI on admission, 17 of which were severe (6 required hemodialysis). The patients with AKI had more cardiovascular disease (CVD) and worse analytical parameters on admission (table). Patients with severe AKI showed no difference in CVD from those with non-severe AKI but were younger and had more hyperkalemia. There were no significant differences between patients with severe AKI who required hemodialysis and those who did not. Inpatient mortality was 8%, higher in patients with AKI but without differences according to severity. In 45 patients kidney function was available 12 months after the episode, loss of eGF was -4.90 ± 14.35 ml/min-1.73m2 (p=0.007). There was no difference between patients who developed AKI and those who did not (-4.10 ± 14.4 vs. -5.39 ± 14.57 ml/min-1.73m2; p=0.67), nor between non-severe and severe AKI (-5.50 ± 14.76 vs. -5.12 ± 15.08ml/min-1.73m2; p=0.98). Of the 33 patients without previous CKD, 5 developed CKD, with greater decrease in eGF than those who did not (-22.69 ± 6.04 vs. -2.63 ± 13.92 ml/min-1.73m2; p=0.003). Female sex (60% vs. 12%; p=0.031) and previous basal eGF (72.22 ± 4.37 vs. 95.6±19.97 ml/min-1.72m2; p=0.016) were related to this deterioration. Conclusion After an episode of rhabdomyolysis, the loss of eGF is similar in patients who develop AKI compared to those who do not.
    Type of Medium: Online Resource
    ISSN: 0931-0509 , 1460-2385
    Language: English
    Publisher: Oxford University Press (OUP)
    Publication Date: 2021
    detail.hit.zdb_id: 1465709-0
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