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Zacchia M, Blanco FDV, Torella A, Raucci R, Blasio G, Onore ME, Marchese E, Trepiccione F, Vitagliano C, Iorio VD, Alessandra P, Simonelli F, Nigro V, Capasso G, Viggiano D. Urine concentrating defect as presenting sign of progressive renal failure in Bardet-Biedl syndrome patients. Clin Kidney J 2021; 14:1545-1551. [PMID: 34084454 PMCID: PMC8162863 DOI: 10.1093/ckj/sfaa182] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Accepted: 07/06/2020] [Indexed: 12/26/2022] Open
Abstract
BACKGROUND Urine concentrating defect is a common dysfunction in ciliopathies, even though its underlying mechanism and its prognostic meaning are largely unknown. This study assesses renal function in a cohort of 54 Bardet-Biedl syndrome (BBS) individuals and analyses whether renal hyposthenuria is the result of specific tubule dysfunction and predicts renal disease progression. METHODS The estimated glomerular filtration rate (eGFR), urine albumin:creatinine ratio (ACR) and maximum urine osmolality (max-Uosm) were measured in all patients. Genetic analysis was conducted in 43 patients. Annual eGFR decline (ΔeGFR) was measured in patients with a median follow-up period of 6.5 years. Urine aquaporin-2 (uAQP2) excretion was measured and the furosemide test was performed in patients and controls. RESULTS At baseline, 33 (61.1%), 12 (22.2%) and 9 (16.7%) patients showed an eGFR >90, 60-90 and <60 mL/min/1.73 m2, respectively; 27.3% showed an ACR >30 mg/g and 55.8% of patients showed urine concentrating defect in the absence of renal insufficiency. Baseline eGFR, but not max-Uosm, correlated negatively with age. Conversely, truncating mutations affected max-Uosm and showed a trend towards a reduction in eGFR. Max-Uosm correlated with ΔeGFR (P < 0.005), suggesting that urine concentrating defect may predict disease progression. uAQP2 excretion and Na+ and Cl- fractional excretion after furosemide did not differ between hyposthenuric patients and controls, suggesting that specific collecting duct and thick ascending limb dysfunctions are unlikely to play a central role in the pathogenesis of hyposthenuria. CONCLUSIONS Hyposthenuria is a warning sign predicting poor renal outcome in BBS. The pathophysiology of this defect is most likely beyond defective tubular function.
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Affiliation(s)
- Miriam Zacchia
- Department of Translational Medical Sciences, University of Campania “Luigi Vanvitelli”, Naples, Italy
| | | | - Annalaura Torella
- Department of Precision Medicine, University of Campania “Luigi Vanvitelli”, Naples, Italy
| | - Raffaele Raucci
- Department of Translational Medical Sciences, University of Campania “Luigi Vanvitelli”, Naples, Italy
| | - Giancarlo Blasio
- Department of Precision Medicine, University of Campania “Luigi Vanvitelli”, Naples, Italy
| | - Maria Elena Onore
- Department of Precision Medicine, University of Campania “Luigi Vanvitelli”, Naples, Italy
| | - Emanuela Marchese
- Department of Mental and Physical Health and Preventive Medicine, University of Campania “Luigi Vanvitelli”, Naples, Italy
- CEINGE, Advanced Biotechnologies, Naples, Italy
| | - Francesco Trepiccione
- Department of Translational Medical Sciences, University of Campania “Luigi Vanvitelli”, Naples, Italy
- Biogem Scarl, Ariano Irpino, Italy
| | - Caterina Vitagliano
- Department of Translational Medical Sciences, University of Campania “Luigi Vanvitelli”, Naples, Italy
| | - Valentina Di Iorio
- Multidisciplinary Department of Medical, Eye Clinic, Surgical and Dental Sciences, University of Campania “Luigi Vanvitelli”, Naples, Italy
| | - Perna Alessandra
- Department of Translational Medical Sciences, University of Campania “Luigi Vanvitelli”, Naples, Italy
| | - Francesca Simonelli
- Multidisciplinary Department of Medical, Eye Clinic, Surgical and Dental Sciences, University of Campania “Luigi Vanvitelli”, Naples, Italy
| | - Vincenzo Nigro
- Department of Precision Medicine, University of Campania “Luigi Vanvitelli”, Naples, Italy
- Telethon Institute of Genetics and Medicine, Pozzuoli, Italy
| | - Giovambattista Capasso
- Department of Translational Medical Sciences, University of Campania “Luigi Vanvitelli”, Naples, Italy
- Biogem Scarl, Ariano Irpino, Italy
| | - Davide Viggiano
- Department of Translational Medical Sciences, University of Campania “Luigi Vanvitelli”, Naples, Italy
- Department of Medicine and Health Sciences, University of Molise, Campobasso, Italy
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Chen F, Hu Y, Xie Y, Zhao Z, Ma L, Li Z, Tan W. Total Glucosides of Paeony Alleviate Cell Apoptosis and Inflammation by Targeting the Long Noncoding RNA XIST/MicroRNA-124-3p/ITGB1 Axis in Renal Ischemia/Reperfusion Injury. Mediators Inflamm 2020; 2020:8869511. [PMID: 33299380 DOI: 10.1155/2020/8869511] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Accepted: 10/24/2020] [Indexed: 02/06/2023] Open
Abstract
Objective Renal ischemia/reperfusion injury (RI/RI) is the main cause of acute kidney injury. Total glucosides of paeony (TGP) are a traditional Chinese medicine. This study was aimed at exploring the role of TGP in RI/RI and its underlying mechanism of action. Methods Rat RI/RI models were constructed by surgical operation. Serum creatinine (Scr) and blood urea nitrogen (BUN) were used to evaluate renal function. The levels of proinflammatory cytokines were detected by ELISA. RI/RI was simulated by hypoxia/reoxygenation (H/R) treatment in renal cells in vitro. The lncRNA XIST (XIST) expression was analyzed by qRT-PCR. Then, the viability and apoptosis of renal cells were detected by MTT and flow cytometry assay. Additionally, dual-luciferase reporter assay was used to determine the interactions among XIST, microRNA-124-3p (miR-124-3p), and ITGB1. Results TGP improved renal function and inhibited inflammatory responses after RI/RI. XIST expression was highly expressed in rat RI/RI models and H/R-treated renal cells, whereas treatment with TGP downregulated the XIST expression. Additionally, TGP increased viability and attenuated apoptosis and inflammation of H/R-treated renal cells via inhibiting XIST. Moreover, XIST was competitively bound to miR-124-3p, and ITGB1 was a target of miR-124-3p. miR-124-3p overexpression or ITGB1 inhibition rescued the reduction effect on viability and mitigated the promoting effects on cell apoptosis and inflammation caused by XIST overexpression in H/R-treated renal cells. Conclusions In vivo, TGP attenuated renal dysfunction and inflammation in RI/RI rats. In vitro, TGP inhibited XIST expression to modulate the miR-124-3p/ITGB1 axis, alleviating the apoptosis and inflammation of H/R-treated renal cells.
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