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Coelho S, Monteiro M, Santos J, Correia F, Rodrigues P, Rito M, Freitas P. Impact of sterile leukocyturia on outcome of critically ill patients with severe acute kidney injury. J Crit Care 2021; 64:1-6. [PMID: 33721608 DOI: 10.1016/j.jcrc.2021.02.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 02/21/2021] [Accepted: 02/22/2021] [Indexed: 11/15/2022]
Abstract
INTRODUCTION The role of immunological mechanisms on renal regeneration and functional recovery after an episode of Acute Kidney Injury (AKI) is still understudied. We aim to evaluate the impact of sterile leukocyturia on outcomes of critically-ill AKI patients. METHODS A retrospective analysis of critically-ill patients with stage ≥2 AKI by KDIGO was performed. Patients with urinary tract infection, previous renal replacement therapy, chronic kidney disease stage >3 and kidney, urinary tract or prostatic cancer were excluded. Sterile leukocyturia was defined as a positive leukocyte esterase value. RESULTS 108 patients with stage ≥2 AKI were included, 39.8% of which had sterile leukocyturia. AKI patients with sterile leukocyturia were older, had more cardiovascular disease and a lower baseline renal function (p < 0.05). They had a higher serum creatinine and leukocytosis at admission, were more frequently septic (p < 0.05) and had more persistent AKI by both KDIGO criteria at multivariable analysis (OR 6.130, 95% CI 2.007-18.747). CONCLUSION Sterile leukocyturia was associated with different patient baseline and AKI characteristics and more persistent AKI by both KDIGO criteria. Sterile leukocyturia may represent a surrogate marker of renal inflammation during AKI.
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Affiliation(s)
- Sílvia Coelho
- Intensive Care Department, Hospital Fernando Fonseca EPE, Amadora, Portugal; CEDOC- Chronic Diseases Research Center, NOVA Medical School, NOVA University of Lisbon, Portugal.
| | - Margarida Monteiro
- Internal Medicine Department, Hospital Fernando Fonseca EPE, Amadora, Portugal
| | - Joana Santos
- Nephrology Department, Hospital Espírito Santo, Évora, Portugal
| | | | | | - Matilde Rito
- NOVA Medical School, NOVA University of Lisbon, Portugal
| | - Paulo Freitas
- Intensive Care Department, Hospital Fernando Fonseca EPE, Amadora, Portugal
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Zhang F, Li X, Ni Y, Shan G, Gao Y. Preliminary study of the urinary proteome in Li and Han ethnic individuals from Hainan. SCIENCE CHINA. LIFE SCIENCES 2020; 63:125-137. [PMID: 31102176 DOI: 10.1007/s11427-018-9485-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2018] [Accepted: 01/23/2019] [Indexed: 01/05/2023]
Abstract
Biomarkers indicate changes associated with disease. Blood is relatively stable due to the homeostatic mechanisms of the body; however, urine accumulates metabolites from changes in the body, making it a better source for early biomarker discovery. The Li ethnic group is a unique minority ethnic group that has only lived on Hainan Island for approximately 5,000 years. Studies have shown that various specific genetic variations are different between the Li and Han ethnic groups. However, whether the urinary proteome between these two ethnic groups is significantly different remains unknown. In this study, differential urinary proteins were identified in the Li and Han ethnic groups using liquid chromatography tandem mass spectrometry (LC-MS/MS). In total, 1,555 urinary proteins were identified. Twenty-five of the urinary proteins were statistically significantly different, 16 of which have been previously reported to be biomarkers of many diseases, and that these significantly different proteins were caused by ethnic differences rather than random differences. Ethnic group differences may be an influencing factor in urine proteome studies and should be considered when human urine samples are used for biomarker discovery.
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Affiliation(s)
- Fanshuang Zhang
- Department of Pathology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China.,Department of Pathophysiology, Institute of Basic Medical Sciences Chinese Academy of Medical Sciences, School of Basic Medicine Peking Union Medical College, Beijing, 100005, China
| | - Xundou Li
- Department of Pathophysiology, Institute of Basic Medical Sciences Chinese Academy of Medical Sciences, School of Basic Medicine Peking Union Medical College, Beijing, 100005, China
| | - Yanying Ni
- Department of Pathophysiology, Institute of Basic Medical Sciences Chinese Academy of Medical Sciences, School of Basic Medicine Peking Union Medical College, Beijing, 100005, China
| | - Guangliang Shan
- Department of Epidemiology and Statistics, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, School of Basic Medicine, Peking Union Medical College, Beijing, 100005, China.
| | - Youhe Gao
- Department of Biochemistry and Molecular Biology, Beijing Normal University, Gene Engineering Drug and Biotechnology Beijing Key Laboratory, Beijing, 100875, China.
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Zhou JZ, Hu MR, Diao HL, Wang QW, Huang Q, Ge BJ. Comprehensive analysis of differentially expressed circRNAs revealed a ceRNA network in pancreatic ductaladenocarcinoma. Arch Med Sci 2019; 15:979-991. [PMID: 31360192 PMCID: PMC6657245 DOI: 10.5114/aoms.2019.85204] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2018] [Accepted: 05/09/2018] [Indexed: 12/15/2022] Open
Abstract
INTRODUCTION Pancreatic ductal adenocarcinoma (PDAC) is one of the deadliest malignancies. However, the molecular mechanisms underlying PDAC are still not completely understood. Circular RNAs (circRNAs) are a unique class of RNA formed by special loop splicing. More and more researchers have paid attention to circRNAs. MATERIAL AND METHODS In this study, we constructed a circRNA-mediated competing endogenous RNA (ceRNA) network in PDAC. Gene ontology (GO) analysis was performed to explore circRNAs' potential roles in PDAC progression. We also constructed an up-stream transcriptional network of circRNAs' parental genes and found that many transcription factors (TFs), such as tumor protein p53 (TP53) and MYC, could regulate their expression. RESULTS This study, which aimed to identify differentially expressed circRNAs in PDAC, suggested that circRNAs may also act as biomarkers for PDAC. We analyzed two public datasets (GSE69362 and GSE79634) to identify differentially expressed circRNAs in PDAC. Finally, we found that DExH-Box Helicase 9 (DHX9) may be a potential regulator of circRNA formation in PDAC. Genomic loci of four down-regulated circRNAs - hsa_circ_000691, hsa_circ_0049392, hsa_circ_0005203, and hsa_circ_0001626 - contained DHX9 binding sites, suggesting that they may be directly regulated by DHX9. CONCLUSIONS Our study identified differentially expressed circRNAs in PDAC, suggesting that circRNAs may also act as biomarkers for PDAC. Additional investigations of function and up-stream regulation of differentially expressed circRNA in PDAC are still needed.
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Affiliation(s)
- Jin-Zhe Zhou
- Department of General Surgery, Tongji Hospital, Tongji University School of Medicine, Shanghai, China
| | - Mu-Ren Hu
- Department of General Surgery, Tongji Hospital, Tongji University School of Medicine, Shanghai, China
| | - Hong-Liang Diao
- Department of General Surgery, Karamay Central Hospital, Karamay, Xinjiang, China
| | - Qi-Wei Wang
- Department of General Surgery, Tongji Hospital, Tongji University School of Medicine, Shanghai, China
| | - Qi Huang
- Department of General Surgery, Tongji Hospital, Tongji University School of Medicine, Shanghai, China
| | - Bu-Jun Ge
- Department of General Surgery, Tongji Hospital, Tongji University School of Medicine, Shanghai, China
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Hu X, Shen G, Lu X, Ding G, Shen L. Identification of key proteins and lncRNAs in hypertrophic cardiomyopathy by integrated network analysis. Arch Med Sci 2019; 15:484-497. [PMID: 30899302 PMCID: PMC6425197 DOI: 10.5114/aoms.2018.75593] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Accepted: 04/02/2018] [Indexed: 01/16/2023] Open
Abstract
INTRODUCTION Hypertrophic cardiomyopathy (HCM), a genetically heterogeneous disorder of cardiac myocytes, is one of the main causes of sudden cardiac death of young people. However, the molecular mechanism involved in HCM has remained largely unclear. Of note, non-coding RNAs were reported to play an important role in human diseases. In this study, we focused on identifying differentially expressed long non-coding RNA (lncRNAs) and mRNAs in HCM by analyzing a public dataset (GSE36961). MATERIAL AND METHODS We performed bioinformatics analysis to explore key pathways underlying HCM progression. Gene Ontology (GO) analysis was first performed to evaluate the potential roles of differentially expressed genes and lncRNAs in HCM. Moreover, protein-protein interaction (PPI) networks were constructed to reveal interactions among differentially expressed proteins. Specifically, co-expression networks were also constructed to identify hub lncRNAs in HCM. RESULTS A total of 6147 mRNAs (p < 0.001) and 126 lncRNAs (p < 0.001) were found to be dysregulated in HCM. Gene Ontology (GO) analysis showed that these differentially expressed genes and lncRNAs were associated with metabolism, energy pathways, signal transduction, and cell communication. Moreover, TSPYL3, LOC401431, LOC158376, LOC606724, PDIA3P and LOH3CR2A (p < 0.001) were identified as key lncRNAs in HCM progression. CONCLUSIONS Taken together, our analysis revealed a series of lncRNAs and mRNAs that were differentially expressed in HCM and which were involved in HCM progression by regulating pathways, such as metabolism, energy pathways, signal transduction, and cell communication. This study will provide useful information to explore the mechanisms underlying HCM progression and to provide potential candidate biomarkers for diagnosis in HCM.
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Affiliation(s)
- Xiaofeng Hu
- Department of Cardiology, Zhejiang Hospital, Hangzhou, Zhejiang Province, China
| | - Guilin Shen
- Department of Cardiology, Anji People’s Hospital, Huzhou, Zhejiang Province, China
| | - Xiaoli Lu
- Department of Cardiology, Anji People’s Hospital, Huzhou, Zhejiang Province, China
| | - Guomin Ding
- Department of Cardiology, Anji People’s Hospital, Huzhou, Zhejiang Province, China
| | - Lishui Shen
- Department of Cardiology, Zhejiang Hospital, Hangzhou, Zhejiang Province, China
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Jiang Y, Liu J, Zhou Z, Liu K, Liu C. Diosmetin Attenuates Akt Signaling Pathway by Modulating Nuclear Factor Kappa-Light-Chain-Enhancer of Activated B Cells (NF-κB)/Inducible Nitric Oxide Synthase (iNOS) in Streptozotocin (STZ)-Induced Diabetic Nephropathy Mice. Med Sci Monit 2018; 24:7007-7014. [PMID: 30278036 PMCID: PMC6354632 DOI: 10.12659/msm.910764] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Background We evaluated the nephroprotective effect of diosmetin in streptozotocin (STZ)-induced diabetic nephropathy (DN) mice. Material/Methods Diabetes was induced by injecting STZ (50 mg/kg) i.p. for 5 days. Biochemical parameters, such as fasting blood glucose, creatinine, BUN in the serum, and albumin in the urine, were determined in STZ-induced DN mice after the 8th week of STZ administration. The level of inflammatory mediators in the serum and oxidative stress parameters in the tissue homogenate was estimated in STZ-induced DN mice. Expressions of Akt, NF-κB, and iNOS in the tissue homogenate were assessed by Western blot analysis. Results Our data reveal that treatment with diosmetin significantly reduces the fasting blood glucose (FBG), serum creatinine, and blood urea nitrogen (BUN) in the serum and albumin in urine compared to the negative control group. Treatment with diosmetin attenuated the altered level of oxidative stress parameters and inflammatory cytokines in the STZ-induced DN mice. Expression of Akt and nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB) was significantly reduced and inducible nitric oxide synthase (iNOS) was enhanced in the tissue homogenate of diosmetin-treated mice compared to the negative control group. Data from immunohistochemical analysis suggest that the expressions of NF-κB was significantly reduced in tissues of the diosmetin-treated group compared to the negative control group. Conclusions Our study shows that diosmetin protects against renal injury in STZ-induced diabetic nephropathy mice by modulating the Akt/NF-κB/iNOS signaling pathway.
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Affiliation(s)
- Yingsong Jiang
- Department of Nephrology, Chongqing General Hospital, Chongqing, China (mainland)
| | - Jiguo Liu
- Department of Nephrology, Chongqing General Hospital, Chongqing, China (mainland)
| | - Zemei Zhou
- Department of Nephrology, Chongqing General Hospital, Chongqing, China (mainland)
| | - Ke Liu
- Department of Nephrology, Chongqing General Hospital, Chongqing, China (mainland)
| | - Chun Liu
- Department of Nephrology, Chongqing General Hospital, Chongqing, China (mainland)
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