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Niihata K, Nishiwaki H, Kinoshita M, Kurosawa K, Sakuramachi Y, Matsunaga S, Okamura S, Tsujii S, Hayashino Y, Kurita N. Association between urinary C-megalin levels and progressive kidney dysfunction: a cohort study based on the diabetes distress and care registry at Tenri (DDCRT 24). Acta Diabetol 2023; 60:1643-1650. [PMID: 37439857 DOI: 10.1007/s00592-023-02144-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Accepted: 06/19/2023] [Indexed: 07/14/2023]
Abstract
AIMS The aim of this cohort study was to evaluate the association between urinary levels of C-megalin, a full-length form of megalin, and kidney dysfunction progression and its dependence on the urinary albumin-creatinine ratio (UACR) in individuals with diabetes. METHODS We enrolled 1,547 individuals with diabetes who visited the ambulatory clinic at Tenri Hospital, a regional tertiary-care hospital in Tenri City, Nara Prefecture, Japan, with an estimated glomerular filtration (eGFR) of ≥ 30 mL/min/1.73 m2. The hazard ratio (HR) and 95% confidence interval (CI) were estimated using Cox proportional hazard models to examine the association between urinary C-megalin levels and eGFR decline by ≥ 40% from baseline. RESULTS Urinary C-megalin level was not associated with ≥ 40% eGFR decline in an age-, sex-, eGFR-, systolic blood pressure-, hemoglobin-, and UACR-adjusted model in the 1,547 patients enrolled in the study. However, urinary C-megalin levels were associated with a ≥ 40% decline in eGFR when accounting for the relationship between urinary C-megalin levels and UACR in the model. This association was UACR-dependent. CONCLUSIONS High urinary C-megalin levels were associated with progressive kidney dysfunction in individuals with diabetes, and this association was attenuated by high UACRs.
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Affiliation(s)
- Kakuya Niihata
- Department of Clinical Epidemiology, Graduate School of Medicine, Fukushima Medical University, Fukushima, Fukushima, Japan.
| | - Hiroki Nishiwaki
- Department of Clinical Epidemiology, Graduate School of Medicine, Fukushima Medical University, Fukushima, Fukushima, Japan
- Division of Nephrology, Department of Internal Medicine, Showa University Fujigaoka Hospital, Yokohama, Kanagawa, Japan
- Showa University Research Administration Center (SURAC), Showa University, Shinagawa, Tokyo, Japan
| | - Maki Kinoshita
- Department of Clinical Laboratory, Tenri Hospital, Nara, Tenri, Japan
| | | | - Yui Sakuramachi
- Department of Endocrinology, Tenri Hospital, Nara, Tenri, Japan
| | | | | | - Satoru Tsujii
- Department of Endocrinology, Tenri Hospital, Nara, Tenri, Japan
| | | | - Noriaki Kurita
- Department of Clinical Epidemiology, Graduate School of Medicine, Fukushima Medical University, Fukushima, Fukushima, Japan
- Department of Innovative Research and Education for Clinicians and Trainees (DiRECT), Fukushima Medical University Hospital, Fukushima, Fukushima, Japan
- Center for Innovative Research for Communities and Clinical Excellence (CIRC2LE), Fukushima Medical University, Fukushima, Japan
- Institute for Health Outcomes and Process Evaluation Research (iHope International), Kyoto, Japan
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Vo TTT, Kong G, Kim C, Juang U, Gwon S, Jung W, Nguyen H, Kim SH, Park J. Exploring scavenger receptor class F member 2 and the importance of scavenger receptor family in prediagnostic diseases. Toxicol Res 2023; 39:341-353. [PMID: 37398563 PMCID: PMC10313632 DOI: 10.1007/s43188-023-00176-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Revised: 03/09/2023] [Accepted: 03/14/2023] [Indexed: 07/04/2023] Open
Abstract
Scavenger Receptor Class F Member 2 (SCARF2), also known as the Type F Scavenger Receptor Family gene, encodes for Scavenger Receptor Expressed by Endothelial Cells 2 (SREC-II). This protein is a crucial component of the scavenger receptor family and is vital in protecting mammals from infectious diseases. Although research on SCARF2 is limited, mutations in this protein have been shown to cause skeletal abnormalities in both SCARF2-deficient mice and individuals with Van den Ende-Gupta syndrome (VDEGS), which is also associated with SCARF2 mutations. In contrast, other scavenger receptors have demonstrated versatile responses and have been found to aid in pathogen elimination, lipid transportation, intracellular cargo transportation, and work in tandem with various coreceptors. This review will concentrate on recent progress in comprehending SCARF2 and the functions played by members of the Scavenger Receptor Family in pre-diagnostic diseases.
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Affiliation(s)
- Thuy-Trang T. Vo
- Department of Pharmacology, College of Medicine, Chungnam National University, 266 Munhwa-ro, Jung-gu, Daejeon, 35015 Republic of Korea
- Department of Medical Science, Metabolic Syndrome and Cell Signaling Laboratory, Institute for Cancer Research, College of Medicine, Chungnam National University, Daejeon, 35015 Republic of Korea
| | - Gyeyeong Kong
- Department of Pharmacology, College of Medicine, Chungnam National University, 266 Munhwa-ro, Jung-gu, Daejeon, 35015 Republic of Korea
- Department of Medical Science, Metabolic Syndrome and Cell Signaling Laboratory, Institute for Cancer Research, College of Medicine, Chungnam National University, Daejeon, 35015 Republic of Korea
| | - Chaeyeong Kim
- Department of Pharmacology, College of Medicine, Chungnam National University, 266 Munhwa-ro, Jung-gu, Daejeon, 35015 Republic of Korea
- Department of Medical Science, Metabolic Syndrome and Cell Signaling Laboratory, Institute for Cancer Research, College of Medicine, Chungnam National University, Daejeon, 35015 Republic of Korea
| | - Uijin Juang
- Department of Pharmacology, College of Medicine, Chungnam National University, 266 Munhwa-ro, Jung-gu, Daejeon, 35015 Republic of Korea
- Department of Medical Science, Metabolic Syndrome and Cell Signaling Laboratory, Institute for Cancer Research, College of Medicine, Chungnam National University, Daejeon, 35015 Republic of Korea
| | - Suhwan Gwon
- Department of Pharmacology, College of Medicine, Chungnam National University, 266 Munhwa-ro, Jung-gu, Daejeon, 35015 Republic of Korea
- Department of Medical Science, Metabolic Syndrome and Cell Signaling Laboratory, Institute for Cancer Research, College of Medicine, Chungnam National University, Daejeon, 35015 Republic of Korea
| | - Woohyeong Jung
- Department of Pharmacology, College of Medicine, Chungnam National University, 266 Munhwa-ro, Jung-gu, Daejeon, 35015 Republic of Korea
- Department of Medical Science, Metabolic Syndrome and Cell Signaling Laboratory, Institute for Cancer Research, College of Medicine, Chungnam National University, Daejeon, 35015 Republic of Korea
| | - Huonggiang Nguyen
- Department of Pharmacology, College of Medicine, Chungnam National University, 266 Munhwa-ro, Jung-gu, Daejeon, 35015 Republic of Korea
- Department of Medical Science, Metabolic Syndrome and Cell Signaling Laboratory, Institute for Cancer Research, College of Medicine, Chungnam National University, Daejeon, 35015 Republic of Korea
| | - Seon-Hwan Kim
- Department of Neurosurgery, Institute for Cancer Research, College of Medicine, Chungnam National University, Daejeon, 35015 Republic of Korea
| | - Jongsun Park
- Department of Pharmacology, College of Medicine, Chungnam National University, 266 Munhwa-ro, Jung-gu, Daejeon, 35015 Republic of Korea
- Department of Medical Science, Metabolic Syndrome and Cell Signaling Laboratory, Institute for Cancer Research, College of Medicine, Chungnam National University, Daejeon, 35015 Republic of Korea
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Lee T, Finney E, Jha A, Dorste A, Lee R. Approaches and Barriers to Biomarker Discovery. Urol Clin North Am 2023; 50:1-17. [DOI: 10.1016/j.ucl.2022.09.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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4
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Araújo Galdino O, de Souza Gomes I, Ferreira de Almeida Júnior R, Conceição Ferreira de Carvalho MI, Abreu BJ, Abbott Galvão Ururahy M, Cabral B, Zucolotto Langassner SM, Costa de Souza KS, Augusto de Rezende A. The nephroprotective action of Passiflora edulis in streptozotocin-induced diabetes. Sci Rep 2022; 12:17546. [PMID: 36266308 PMCID: PMC9584925 DOI: 10.1038/s41598-022-21826-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Accepted: 10/04/2022] [Indexed: 01/13/2023] Open
Abstract
In the present study, we aimed to evaluate the therapeutic effect of Passiflora edulis fruit peel aqueous (AFA) extract as an adjuvant to insulin to confer nephroprotection against streptozotocin-induced diabetes. Male Wistar rats were divided into four groups based on treatment received for 60 days: diabetic (DB), control (CTL), insulin (INS), and insulin + AFA extract (INS + AFA). mRNA and protein expression levels of podocyte (nephrin, podocin, and WT1) and tubular (megalin) proteins were measured in kidney tissue specimens and urine. Biochemical parameters and kidney histopathology were also examined. Herein, the INS + AFA group showed superior glycemic control, which resulted in the reduction of urinary albumin/creatinine ratio, maintenance of baseline levels of Nphs1, Nphs2, Wt1, and Lrp2 mRNA expression, prevention of protein loss from the kidney tissue into the urinary space, along with the maintenance of glomerular basement membrane thickness, hyalinization, glomerular and tubulointerstitial fibrosis at values approximating those of the CTL group and significantly lower than those in the DB group. Therefore, these results suggest that, as an anti-diabetic agent, the AFA extract adjuvant to insulin could reduce and potentially prevent diabetic kidney disease.
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Affiliation(s)
- Ony Araújo Galdino
- grid.411233.60000 0000 9687 399XDepartment of Clinical and Toxicological Analyses, Federal University of Rio Grande do Norte, Av. General Gustavo Cordeiro de Farias, S/N, Faculty of Pharmacy, Petrópolis, Natal, RN CEP: 59012-570 Brazil
| | - Iago de Souza Gomes
- grid.411233.60000 0000 9687 399XDepartment of Clinical and Toxicological Analyses, Federal University of Rio Grande do Norte, Av. General Gustavo Cordeiro de Farias, S/N, Faculty of Pharmacy, Petrópolis, Natal, RN CEP: 59012-570 Brazil
| | - Renato Ferreira de Almeida Júnior
- grid.411233.60000 0000 9687 399XDepartment of Clinical and Toxicological Analyses, Federal University of Rio Grande do Norte, Av. General Gustavo Cordeiro de Farias, S/N, Faculty of Pharmacy, Petrópolis, Natal, RN CEP: 59012-570 Brazil
| | - Maria Imaculada Conceição Ferreira de Carvalho
- grid.411233.60000 0000 9687 399XDepartment of Clinical and Toxicological Analyses, Federal University of Rio Grande do Norte, Av. General Gustavo Cordeiro de Farias, S/N, Faculty of Pharmacy, Petrópolis, Natal, RN CEP: 59012-570 Brazil
| | - Bento João Abreu
- grid.411233.60000 0000 9687 399XDepartment of Morphology, Federal University of Rio Grande do Norte, Natal, RN Brazil
| | - Marcela Abbott Galvão Ururahy
- grid.411233.60000 0000 9687 399XDepartment of Clinical and Toxicological Analyses, Federal University of Rio Grande do Norte, Av. General Gustavo Cordeiro de Farias, S/N, Faculty of Pharmacy, Petrópolis, Natal, RN CEP: 59012-570 Brazil
| | - Barbara Cabral
- grid.411233.60000 0000 9687 399XDepartment of Pharmacy, Federal University of Rio Grande do Norte, Natal, RN Brazil
| | | | - Karla Simone Costa de Souza
- grid.411233.60000 0000 9687 399XDepartment of Clinical and Toxicological Analyses, Federal University of Rio Grande do Norte, Av. General Gustavo Cordeiro de Farias, S/N, Faculty of Pharmacy, Petrópolis, Natal, RN CEP: 59012-570 Brazil
| | - Adriana Augusto de Rezende
- grid.411233.60000 0000 9687 399XDepartment of Clinical and Toxicological Analyses, Federal University of Rio Grande do Norte, Av. General Gustavo Cordeiro de Farias, S/N, Faculty of Pharmacy, Petrópolis, Natal, RN CEP: 59012-570 Brazil
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Elsakka EGE, Mokhtar MM, Hegazy M, Ismail A, Doghish AS. Megalin, a multi-ligand endocytic receptor, and its participation in renal function and diseases: A review. Life Sci 2022; 308:120923. [PMID: 36049529 DOI: 10.1016/j.lfs.2022.120923] [Citation(s) in RCA: 52] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Revised: 08/13/2022] [Accepted: 08/26/2022] [Indexed: 11/16/2022]
Abstract
The endocytosis mechanism is a complicated system that is essential for cell signaling and survival. Megalin, a membrane-associated endocytic receptor, and its related proteins such as cubilin, the neonatal Fc receptor for IgG, and NaPi-IIa are important in receptors-mediated endocytosis. Physiologically, megalin uptakes plasma vitamins and proteins from primary urine, preventing their loss. It also facilitates tubular retrieval of solutes and endogenous components that may be involved in modulation and recovery from kidney injuries. Moreover, megalin is responsible for endocytosis of xenobiotics and drugs in renal tubules, increasing their half-life and/or their toxicity. Fluctuations in megalin expression and/or functionality due to changes in its regulatory mechanisms are associated with some sort of kidney injury. Also, it's an important component of several pathological conditions, including diabetic nephropathy and Dent disease. Thus, exploring the fundamental role of megalin in the kidney might help in the protection and/or treatment of multiple kidney-related diseases. Hence, this review aimed to explore the physiological roles of megalin in the kidney and their implications for kidney-related injuries.
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Affiliation(s)
- Elsayed G E Elsakka
- Biochemistry and Molecular Biology Department, Faculty of Pharmacy (Boys), Al-Azhar University, Nasr City 11231, Cairo, Egypt.
| | - Mahmoud Mohamed Mokhtar
- Biochemistry and Molecular Biology Department, Faculty of Pharmacy (Boys), Al-Azhar University, Nasr City 11231, Cairo, Egypt
| | - Maghawry Hegazy
- Biochemistry and Molecular Biology Department, Faculty of Pharmacy (Boys), Al-Azhar University, Nasr City 11231, Cairo, Egypt
| | - Ahmed Ismail
- Biochemistry and Molecular Biology Department, Faculty of Pharmacy (Boys), Al-Azhar University, Nasr City 11231, Cairo, Egypt
| | - Ahmed S Doghish
- Department of Biochemistry, Faculty of Pharmacy, Badr University in Cairo (BUC), Badr City, Cairo 11829, Egypt.
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