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Labarque V, Okocha EC. Systematic Review of Genetic Modifiers Associated with the Development and/or Progression of Nephropathy in Patients with Sickle Cell Disease. Int J Mol Sci 2024; 25:5427. [PMID: 38791464 PMCID: PMC11121490 DOI: 10.3390/ijms25105427] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2024] [Revised: 05/05/2024] [Accepted: 05/10/2024] [Indexed: 05/26/2024] Open
Abstract
Sickle cell nephropathy (SCN) is a common complication of sickle cell disease (SCD) that significantly contributes to morbidity and mortality. In addition to clinical and life-style factors, genetic variants influence this risk. We performed a systematic review, searching five databases. Studies evaluating the effect of genetic modifiers on SCN were eligible. Twenty-eight studies (fair-to-good quality) were included: one genome-wide association study, twenty-six case-control studies, and one article combining both approaches. APOL1 was significantly associated with albuminuria and hyperfiltration in children and with worse glomerular filtration in adults. On the other hand, alpha-thalassemia protected patients against albuminuria and hyperfiltration, while BCL11A variants were protective against albuminuria alone. The HMOX1 long GT-tandem repeat polymorphism led to a lower glomerular filtration rate. No modifiers for the risk of hyposthenuria were identified. A genome-wide association approach identified three new loci for proteinuria (CRYL1, VWF, and ADAMTS7) and nine loci were linked with eGFR (PKD1L2, TOR2A, CUBN, AGGF1, CYP4B1, CD163, LRP1B, linc02288, and FPGT-TNNI3K/TNNI3K). In conclusion, this systematic review supports the role of genetic modifiers in influencing the risk and progression of SCN. Incorporating and expanding this knowledge is crucial to improving the management and clinical outcomes of patients at risk.
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Affiliation(s)
- Veerle Labarque
- Department of Pediatric Hemato-Oncology, University Hospitals Leuven, 3000 Leuven, Belgium
- Center for Molecular and Vascular Biology, KU Leuven, 3000 Leuven, Belgium
| | - Emmanuel Chide Okocha
- Haematology Department, Faculty of Basic Clinical Sciences, College of Health Sciences, Nnamdi Azikiwe University, Nnewi PMB 5025, Anambra State, Nigeria
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Tasaki H, Eriguchi M, Yoshida H, Uemura T, Fukata F, Nishimoto M, Kosugi T, Matsui M, Samejima KI, Iseki K, Asahi K, Yamagata K, Konta T, Fujimoto S, Narita I, Kasahara M, Shibagaki Y, Moriyama T, Kondo M, Watanabe T, Tsuruya K. Synergistic effect of proteinuria on dipstick hematuria-related decline in kidney function: The Japan Specific Health Checkups (J-SHC) Study. Clin Exp Nephrol 2023; 27:990-1000. [PMID: 37603115 DOI: 10.1007/s10157-023-02390-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Accepted: 07/25/2023] [Indexed: 08/22/2023]
Abstract
BACKGROUND The effect of isolated hematuria without proteinuria on kidney function decline, and the modification by the severity of proteinuria in general population are not fully elucidated. METHODS Participants were included in the Japan Specific Health Checkups Study between 2008 and 2014. The exposure of interest was the frequency of dipstick hematuria during the observation. In each proteinuria frequency category (non-, occasional, persistent), hematuria-related decline in the eGFR rate was examined by analysis of covariance (ANCOVA). eGFR decline trajectories were also assessed using mixed-effects models. RESULTS Among the 552,951 participants, 146,753 (26.5%) had hematuria, and 56,021 (10.1%) and 8,061 (1.5%) had occasional and persistent proteinuria, respectively. During the median follow-up of 3.0 years, annual change in eGFR decline in participants with hematuria was significantly faster than in those without hematuria (mean [95% confidence interval]: - 0.95 [- 0.98 to - 0.92] vs - 0.86 [- 0.87 to - 0.84] mL/min/1.73 m2/year; P < 0.001). In ANCOVA, the hematuria-related annual eGFR decline rate increased as proteinuria frequency categories increased (differences in annual eGFR decline rate between participants with and without hematuria: 0.08 [0.06 to 0.09] in participants with non-proteinuria category, 0.17 [0.15 to 0.18] in occasional proteinuria category, and 0.68 [0.65 to 0.71] mL/min/1.73 m2/year in persistent proteinuria category; P for interaction < 0.001). Similar results were obtained by the linear mixed-effect model. CONCLUSIONS Proteinuria has a synergistic effect on dipstick hematuria-related decline in kidney function. Among the general population without proteinuria throughout the observational period, the "isolated hematuria"-related eGFR decline was statistically significant but the difference was small.
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Affiliation(s)
- Hikari Tasaki
- Department of Nephrology, Nara Medical University, 840 Shijo-Cho, Kashihara, Nara, Japan
| | - Masahiro Eriguchi
- Department of Nephrology, Nara Medical University, 840 Shijo-Cho, Kashihara, Nara, Japan.
| | - Hisako Yoshida
- Department of Medical Statistics, Osaka Metropolitan University Graduate School of Medicine, Osaka, Japan
| | - Takayuki Uemura
- Department of Nephrology, Nara Medical University, 840 Shijo-Cho, Kashihara, Nara, Japan
| | - Fumihiro Fukata
- Department of Nephrology, Nara Medical University, 840 Shijo-Cho, Kashihara, Nara, Japan
| | - Masatoshi Nishimoto
- Department of Nephrology, Nara Medical University, 840 Shijo-Cho, Kashihara, Nara, Japan
| | - Takaaki Kosugi
- Department of Nephrology, Nara Medical University, 840 Shijo-Cho, Kashihara, Nara, Japan
| | - Masaru Matsui
- Department of Nephrology, Nara Medical University, 840 Shijo-Cho, Kashihara, Nara, Japan
| | - Ken-Ichi Samejima
- Department of Nephrology, Nara Medical University, 840 Shijo-Cho, Kashihara, Nara, Japan
| | - Kunitoshi Iseki
- Steering Committee of Research on Design of the Comprehensive Health Care System for Chronic Kidney Disease (CKD) Based on the Individual Risk Assessment By Specific Health Check, Fukushima, Japan
| | - Koichi Asahi
- Steering Committee of Research on Design of the Comprehensive Health Care System for Chronic Kidney Disease (CKD) Based on the Individual Risk Assessment By Specific Health Check, Fukushima, Japan
| | - Kunihiro Yamagata
- Steering Committee of Research on Design of the Comprehensive Health Care System for Chronic Kidney Disease (CKD) Based on the Individual Risk Assessment By Specific Health Check, Fukushima, Japan
| | - Tsuneo Konta
- Steering Committee of Research on Design of the Comprehensive Health Care System for Chronic Kidney Disease (CKD) Based on the Individual Risk Assessment By Specific Health Check, Fukushima, Japan
| | - Shouichi Fujimoto
- Steering Committee of Research on Design of the Comprehensive Health Care System for Chronic Kidney Disease (CKD) Based on the Individual Risk Assessment By Specific Health Check, Fukushima, Japan
| | - Ichiei Narita
- Steering Committee of Research on Design of the Comprehensive Health Care System for Chronic Kidney Disease (CKD) Based on the Individual Risk Assessment By Specific Health Check, Fukushima, Japan
| | - Masato Kasahara
- Steering Committee of Research on Design of the Comprehensive Health Care System for Chronic Kidney Disease (CKD) Based on the Individual Risk Assessment By Specific Health Check, Fukushima, Japan
| | - Yugo Shibagaki
- Steering Committee of Research on Design of the Comprehensive Health Care System for Chronic Kidney Disease (CKD) Based on the Individual Risk Assessment By Specific Health Check, Fukushima, Japan
| | - Toshiki Moriyama
- Steering Committee of Research on Design of the Comprehensive Health Care System for Chronic Kidney Disease (CKD) Based on the Individual Risk Assessment By Specific Health Check, Fukushima, Japan
| | - Masahide Kondo
- Steering Committee of Research on Design of the Comprehensive Health Care System for Chronic Kidney Disease (CKD) Based on the Individual Risk Assessment By Specific Health Check, Fukushima, Japan
| | - Tsuyoshi Watanabe
- Steering Committee of Research on Design of the Comprehensive Health Care System for Chronic Kidney Disease (CKD) Based on the Individual Risk Assessment By Specific Health Check, Fukushima, Japan
| | - Kazuhiko Tsuruya
- Department of Nephrology, Nara Medical University, 840 Shijo-Cho, Kashihara, Nara, Japan
- Steering Committee of Research on Design of the Comprehensive Health Care System for Chronic Kidney Disease (CKD) Based on the Individual Risk Assessment By Specific Health Check, Fukushima, Japan
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Kim SC, Cho YS. Predictive System Implementation to Improve the Accuracy of Urine Self-Diagnosis with Smartphones: Application of a Confusion Matrix-Based Learning Model through RGB Semiquantitative Analysis. SENSORS (BASEL, SWITZERLAND) 2022; 22:s22145445. [PMID: 35891125 PMCID: PMC9320386 DOI: 10.3390/s22145445] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 07/15/2022] [Accepted: 07/18/2022] [Indexed: 05/04/2023]
Abstract
Urinalysis, an elementary chemical reaction-based method for analyzing color conversion factors, facilitates examination of pathological conditions in the human body. Recently, considerable urinalysis-centered research has been conducted on the analysis of urine dipstick colors using smartphone cameras; however, such methods have a drawback: the problem of reproducibility of accuracy through quantitative analysis. In this study, to solve this problem, the function values for each concentration of a range of analysis factors were implemented in an algorithm through urine dipstick RGB semi-quantitative color analysis to enable real-time results. Herein, pH, glucose, ketones, hemoglobin, bilirubin, protein (albumin), and nitrites were selected as analysis factors, and the accuracy levels of the existing equipment and the test application were compared and evaluated using artificial urine. In the semi-quantitative analysis, the red (R), green (G), and blue (B) characteristic values were analyzed by extracting the RGB characteristic values of the analysis factors for each concentration of artificial urine and obtaining linear function values. In addition, to improve the reproducibility of detection accuracy, the measurement value of the existing test equipment was set to an absolute value; using a machine-learning technique, the confusion matrix, we attempted to stabilize test results that vary with environment.
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Affiliation(s)
- Seon-Chil Kim
- Department of Biomedical Engineering, School of Medicine, Keimyung University, 1095 Dalgubeol-daero, Daegu 42601, Korea;
| | - Young-Sik Cho
- College of Pharmacy, Keimyung University, 1095 Dalgubeol-daero, Daegu 42601, Korea
- Correspondence: ; Tel.: +82-10-4657-2479
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