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Kim HY, Park JS, Jeon BH, Choi HS, Kim CS, Ma SK, Kim SW, Bae EH. Role of APE1/Ref-1 in hydrogen peroxide-induced apoptosis in human renal HK-2 cells. Kidney Res Clin Pract 2024; 43:186-201. [PMID: 37448293 PMCID: PMC11016666 DOI: 10.23876/j.krcp.22.171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Revised: 11/02/2022] [Accepted: 11/11/2022] [Indexed: 07/15/2023] Open
Abstract
BACKGROUND Apurinic/apyrimidinic endonuclease 1/redox factor-1 (APE1/Ref-1) is a multipotent protein that plays essential roles in cellular responses to oxidative stress. METHODS To examine the role of APE1/Ref-1 in ischemia-reperfusion (I/R) injuries and hydrogen peroxide (H2O2)-induced renal tubular apoptosis, we studied male C57BL6 mice and human proximal tubular epithelial (HK-2) cells treated with H2O2 at different concentrations. The colocalization of APE1/Ref-1 in the proximal tubule, distal tubule, thick ascending limb, and collecting duct was observed with confocal microscopy. The overexpression of APE1/Ref-1 with knockdown cell lines using an APE1/Ref-1-specific DNA or small interfering RNA (siRNA) was used for the apoptosis assay. The promotor activity of nuclear factor kappa B (NF-κB) was assessed and electrophoretic mobility shift assay was conducted. RESULTS APE1/Ref-1 was predominantly localized to the renal tubule nucleus. In renal I/R injuries, the levels of APE1/Ref-1 protein were increased compared with those in kidneys subjected to sham operations. The overexpression of APE1/Ref-1 in HK-2 cells enhanced the Bax/Bcl-2 ratio as a marker of apoptosis. Conversely, the suppression of APE1/Ref-1 expression by siRNA in 1-mM H2O2-treated HK-2 cells decreased the Bax/Bcl-2 ratio, the phosphorylation of extracellular signal-regulated kinase (ERK) 1/2, p38, c-Jun N-terminal kinase (JNK) 1/2, and NF-κB. In HK-2 cells, the promoter activity of NF-κB increased following H2O2 exposure, and this effect was further enhanced by APE1/Ref-1 transfection. CONCLUSION The inhibition of APE1/Ref-1 with siRNA attenuated H2O2-induced apoptosis through the modulation of mitogen-activated protein kinase pathways mediated by ERK, JNK, and p38 and the nuclear activation of NF-κB and proapoptotic factors.
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Affiliation(s)
- Ha Yeon Kim
- Department of Internal Medicine, Gwangju Veterans Hospital, Gwangju, Republic of Korea
| | - Jung Sun Park
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - Byeong Hwa Jeon
- Research Institute of Medical Sciences and Department of Physiology, Chungnam National University College of Medicine, Daejeon, Republic of Korea
| | - Hong Sang Choi
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - Chang Seong Kim
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - Seong Kwon Ma
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - Soo Wan Kim
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - Eun Hui Bae
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Republic of Korea
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Suh SH, Oh TR, Choi HS, Kim CS, Bae EH, Ma SK, Oh KH, Lee KB, Jeong JC, Jung JY, Kim SW. Circulating osteoprotegerin levels and cardiovascular outcomes in patients with pre-dialysis chronic kidney disease: results from the KNOW-CKD study. Sci Rep 2024; 14:4136. [PMID: 38374135 PMCID: PMC10876961 DOI: 10.1038/s41598-024-54335-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Accepted: 02/12/2024] [Indexed: 02/21/2024] Open
Abstract
While the relationship between circulating osteoprotegerin (OPG) and cardiovascular events is well-established in the general population, its association with cardiovascular risks in chronic kidney disease (CKD) patients remains less robust. This study hypothesized that elevated circulating OPG levels might be associated with an increased risk of major adverse cardiac events (MACE) in CKD patients, a total of 2,109 patients with CKD stages 1 through pre-dialysis 5 from the KNOW-CKD cohort were categorized into quartiles based on serum OPG levels. The primary outcome of the study was 3-point MACE, defined as a composite of nonfatal myocardial infarction, nonfatal stroke, or cardiac death. The median follow-up duration was 7.9 years. The cumulative incidence of 3-point MACE significantly varied across serum OPG levels in Kaplan-Meier curve analysis (P < 0.001, log-rank test), with the highest incidence observed in the 4th quartile. Cox regression analysis indicated that, relative to the 1st quartile, the risk of 3-point MACE was significantly higher in the 3rd (adjusted hazard ratio 2.901, 95% confidence interval 1.009 to 8.341) and the 4th quartiles (adjusted hazard ratio 4.347, 95% confidence interval 1.410 to 13.395). In conclusion, elevated circulating OPG levels are associated with adverse cardiovascular outcomes in pre-dialysis CKD patients.
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Affiliation(s)
- Sang Heon Suh
- Department of Internal Medicine, Chonnam National University Medical School and Chonnam National University Hospital, 42 Jebongro, Gwangju, 61469, Korea
| | - Tae Ryom Oh
- Department of Internal Medicine, Chonnam National University Medical School and Chonnam National University Hospital, 42 Jebongro, Gwangju, 61469, Korea
| | - Hong Sang Choi
- Department of Internal Medicine, Chonnam National University Medical School and Chonnam National University Hospital, 42 Jebongro, Gwangju, 61469, Korea
| | - Chang Seong Kim
- Department of Internal Medicine, Chonnam National University Medical School and Chonnam National University Hospital, 42 Jebongro, Gwangju, 61469, Korea
| | - Eun Hui Bae
- Department of Internal Medicine, Chonnam National University Medical School and Chonnam National University Hospital, 42 Jebongro, Gwangju, 61469, Korea
| | - Seong Kwon Ma
- Department of Internal Medicine, Chonnam National University Medical School and Chonnam National University Hospital, 42 Jebongro, Gwangju, 61469, Korea
| | - Kook-Hwan Oh
- Department of Internal Medicine, Seoul National University Hospital, Seoul, Korea
| | - Kyu-Beck Lee
- Division of Nephrology, Department of Internal Medicine, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - Jong Cheol Jeong
- Division of Nephrology, Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Republic of Korea
| | - Ji Yong Jung
- Division of Nephrology, Department of Internal Medicine, Gachon University Gil Medical Center, Incheon, Republic of Korea
| | - Soo Wan Kim
- Department of Internal Medicine, Chonnam National University Medical School and Chonnam National University Hospital, 42 Jebongro, Gwangju, 61469, Korea.
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Suh SH, Oh TR, Choi HS, Kim CS, Bae EH, Ma SK, Oh KH, Jung JY, Hyun YY, Kim SW. Circulating osteoprotegerin as a cardiac biomarker for left ventricular diastolic dysfunction in patients with pre-dialysis chronic kidney disease: the KNOW-CKD study. Clin Res Cardiol 2024:10.1007/s00392-024-02382-w. [PMID: 38319325 DOI: 10.1007/s00392-024-02382-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/15/2023] [Accepted: 01/16/2024] [Indexed: 02/07/2024]
Abstract
BACKGROUND Heart failure with preserved ejection fraction (HFpEF) is a major cause of mortality in patients with chronic kidney disease (CKD), and diagnosis is challenging. Moreover, no specific biomarker for HFpEF has been validated in patients with CKD. The present study aimed to investigate the association between serum osteoprotegerin (OPG) levels and the risk of left ventricular diastolic dysfunction (LVDD), a surrogate of HFpEF, in patients with pre-dialysis CKD. METHODS A total of 2039 patients with CKD at stage 1 to pre-dialysis 5 were categorized into quartiles (Q1 to Q4) by serum OPG levels, and were cross-sectionally analyzed. The study outcome was LVDD, which was operationally defined as the ratio of early transmitral blood flow velocity to early diastolic velocity of the mitral annulus (E/e') > 14. RESULTS In the analysis of baseline characteristics, higher serum OPG levels were clearly related to the risk factors of HFpEF. A scatter plot analysis revealed a moderate correlation between serum OPG levels and E/e' (R = 0.351, P < 0.001). Logistic regression analysis demonstrated that the risk of LVDD in Q3 (adjusted odds ratio 2.576, 95% confidence interval 1.279 to 5.188) and Q4 (adjusted odds ratio 3.536, 95% confidence interval 1.657 to 7.544) was significantly higher than that in Q1. CONCLUSIONS Elevated serum OPG levels are associated with the risk of LVDD in patients with pre-dialysis CKD. The measurement of serum OPG levels may help the diagnosis of LVDD, which is an important echocardiographic feature of HFpEF.
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Affiliation(s)
- Sang Heon Suh
- Department of Internal Medicine, Chonnam National University Medical School and Chonnam National University Hospital, 42 Jebongro, Gwangju, 61469, Korea
| | - Tae Ryom Oh
- Department of Internal Medicine, Chonnam National University Medical School and Chonnam National University Hospital, 42 Jebongro, Gwangju, 61469, Korea
| | - Hong Sang Choi
- Department of Internal Medicine, Chonnam National University Medical School and Chonnam National University Hospital, 42 Jebongro, Gwangju, 61469, Korea
| | - Chang Seong Kim
- Department of Internal Medicine, Chonnam National University Medical School and Chonnam National University Hospital, 42 Jebongro, Gwangju, 61469, Korea
| | - Eun Hui Bae
- Department of Internal Medicine, Chonnam National University Medical School and Chonnam National University Hospital, 42 Jebongro, Gwangju, 61469, Korea
| | - Seong Kwon Ma
- Department of Internal Medicine, Chonnam National University Medical School and Chonnam National University Hospital, 42 Jebongro, Gwangju, 61469, Korea
| | - Kook-Hwan Oh
- Department of Internal Medicine, Seoul National University Hospital, Seoul, Korea
| | - Ji Yong Jung
- Division of Nephrology, Department of Internal Medicine, Gachon University Gil Medical Center, Incheon, Republic of Korea
| | - Young Youl Hyun
- Department of Internal Medicine, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, 03181, Republic of Korea
| | - Soo Wan Kim
- Department of Internal Medicine, Chonnam National University Medical School and Chonnam National University Hospital, 42 Jebongro, Gwangju, 61469, Korea.
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Kim TB, Ahn SY, Oh J, Bae EH, Chin HJ, Kim MG, Jo SK, Cho WY, Oh SW. The Impact of Obesity on Kidney Disease: Observational Cohort Study Analyzing 14,492 Kidney Biopsy Cases. J Korean Med Sci 2024; 39:e12. [PMID: 38258359 PMCID: PMC10803208 DOI: 10.3346/jkms.2024.39.e12] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Accepted: 11/10/2023] [Indexed: 01/24/2024] Open
Abstract
BACKGROUND The obesity epidemic is associated with the emergence of new kidney diseases including obesity-related glomerulopathy (ORG) and metabolic syndrome-associated disorders. However, the effects of obesity on prevalence and outcome of biopsy-proven kidney disease are not well known. METHODS We analyzed 14,492 kidney biopsies in 18 hospitals from 1979 to 2018 in Korea. Obesity was defined as a body mass index value of ≥ 30 kg/m². RESULTS The most common disease was IgA nephropathy (IgAN) in both obese and non-obese participants (33.7% vs. 38.9%). Obesity was associated with a higher risk of focal segmental glomerulosclerosis (FSGS) and hypertensive nephropathy (HT-N) (odds ratio [OR], 1.72, 95% confidence interval [CI], 1.37-2.17; OR, 1.96, 95% CI, 1.21-3.19) and a lower risk of IgAN (OR, 0.74, 95% CI, 0.62-0.88). During the median follow up of 93.1 ± 88.7 months, obesity increased the risk of end-stage kidney disease (ESKD) in patients with IgAN (relative risk [RR], 1.49, 95% CI, 1.01-2.20) and lupus nephritis (LN) (RR, 3.43, 95% CI, 1.36-8.67). Of 947 obese individuals, ORG was detected in 298 (31.5%), and 230 participants had other kidney diseases, most commonly, IgAN (40.9%) followed by diabetic nephropathy (15.2%). Participants with ORG, when combined with other renal diseases, showed higher risks for developing ESKD compared to those with ORG alone (RR, 2.48, 95% CI, 1.09-5.64). CONCLUSION Obesity is associated with an increased risk of FSGS and HT-N, and also increase the ESKD risk in IgAN and LN patients. ORG in obese participants may have favorable renal outcomes if it occurs alone without any other renal disease.
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Affiliation(s)
- Tae-Bum Kim
- Department of Internal Medicine, Goesan Sungmo Hospital, Goesan, Korea
| | - Shin Young Ahn
- Division of Nephrology, Department of Internal Medicine, Korea University Guro Hospital, Korea University College of Medicine, Seoul, Korea
| | - Jieun Oh
- Division of Nephrology, Department of Internal Medicine, Hallym University College of Medicine, Kangdong Sacred Heart Hospital, Seoul, Korea
| | - Eun Hui Bae
- Department of Internal Medicine, Chonnam National University Hospital, Chonnam National University Medical School, Gwangju, Korea
| | - Ho Jun Chin
- Division of Nephrology, Department of Internal Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea
| | - Myung-Gyu Kim
- Division of Nephrology, Department of Internal Medicine, Korea University Anam Hospital, Seoul, Korea
| | - Sang Kyung Jo
- Division of Nephrology, Department of Internal Medicine, Korea University Anam Hospital, Seoul, Korea
| | - Won Yong Cho
- Division of Nephrology, Department of Internal Medicine, Korea University Anam Hospital, Seoul, Korea
| | - Se Won Oh
- Division of Nephrology, Department of Internal Medicine, Korea University Anam Hospital, Seoul, Korea.
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Song SH, Goo YJ, Oh TR, Suh SH, Choi HS, Kim CS, Ma SK, Kim SW, Bae EH. Insulin resistance is associated with incident chronic kidney disease in population with normal renal function. Kidney Res Clin Pract 2023:j.krcp.22.298. [PMID: 38148129 DOI: 10.23876/j.krcp.22.298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Accepted: 06/20/2023] [Indexed: 12/28/2023] Open
Abstract
Background Insulin resistance is prevalent in chronic kidney disease and may accelerate the progression of chronic kidney disease. This study aimed to investigate whether insulin resistance is associated with the development of incident chronic kidney disease in a population with normal renal function. Methods A total of 3,331 participants from a community-based cohort with normal renal function were prospectively analyzed. We determined the relationship of insulin resistance indices with the incident chronic kidney disease using the Cox proportional hazard model and Kaplan-Meier survival analysis. Results During a mean follow-up of 11.03 ± 4.22 years, incident chronic kidney disease occurred in 414 participants (12.4%). The high homeostasis model assessment-insulin resistance level group had an increased risk of incident chronic kidney disease (hazard ratio [HR], 1.40; 95% confidence interval [CI], 1.13-1.74; p = 0.002) compared to the normal group after adjustment for age, sex, history of hypertension, body mass index, total cholesterol, alcohol drinking status, smoking status, and baseline estimated glomerular filtration rate. The risk of incident chronic kidney disease also increased with the lower quantitative insulin sensitivity check index level (HR, 0.62; 95% CI, 0.41-0.92; p = 0.02) and higher leptin-adiponectin ratio level (HR, 1.23; 95% CI, 1.06-1.42; p = 0.006). Conclusion Higher insulin resistance indices are associated with the incidence of chronic kidney disease. Our data suggest that increased insulin resistance may be involved in the development of incident chronic kidney disease in a population with normal renal function.
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Affiliation(s)
- Su Hyun Song
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - Young Jin Goo
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - Tae Ryom Oh
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - Sang Heon Suh
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - Hong Sang Choi
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - Chang Seong Kim
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - Seong Kwon Ma
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - Soo Wan Kim
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - Eun Hui Bae
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Republic of Korea
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Jou DH, Kim SI, Choi IH, Song SH, Oh TR, Suh SH, Choi HS, Kim CS, Kim SW, Bae EH, Ma SK. Fatal Hypermagnesemia in Patients Taking Magnesium Hydroxide. Electrolyte Blood Press 2023; 21:66-71. [PMID: 38152602 PMCID: PMC10751210 DOI: 10.5049/ebp.2023.21.2.66] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 07/28/2022] [Revised: 08/30/2023] [Accepted: 09/05/2023] [Indexed: 12/29/2023] Open
Abstract
Hypermagnesemia is a rare but potentially fatal electrolyte disorder often overlooked because of its unfamiliarity. Magnesium is regulated through a balance of bone, intestinal absorption, and renal excretion. Hypermagnesemia typically arises from excessive magnesium intake or reduced renal excretion; however, it also occurs in patients with normal kidney function. Herein, we report two cases of hypermagnesemia in patients taking magnesium hydroxide for constipation. The first case involved an 82-year-old woman with end-stage renal disease who developed metabolic encephalopathy due to hypermagnesemia, after taking 3,000 mg of magnesium hydroxide daily for constipation. Her magnesium level was 9.9 mg/dL. Her treatment involved discontinuing magnesium hydroxide and continuing hemodialysis, which led to her recovery. In the second case, a 50-year-old woman with a history of cerebral hemorrhage and mental retardation developed hypermagnesemia despite having normal renal function. She was also taking magnesium hydroxide for constipation, and her magnesium level was 11.0 mg/dL. She experienced cardiac arrest while preparing for continuous renal replacement therapy (CRRT). After achieving return of spontaneous circulation, CRRT was initiated, and her magnesium level showed a decreasing trend. However, vital signs and lactate levels did not recover, leading to death. These cases highlight the importance of prompt diagnosis and intervention for hypermagnesemia and the need to regularly monitor magnesium levels in individuals receiving magnesium-containing preparations, especially those with impaired kidney function.
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Affiliation(s)
- Da Hye Jou
- Department of Internal Medicine, Chonnam National University Medical School and Chonnam National University Hospital, Gwangju, Republic of Korea
| | - Su In Kim
- Department of Internal Medicine, Chonnam National University Medical School and Chonnam National University Hospital, Gwangju, Republic of Korea
| | - In Hong Choi
- Department of Internal Medicine, Chonnam National University Medical School and Chonnam National University Hospital, Gwangju, Republic of Korea
| | - Su Hyun Song
- Department of Internal Medicine, Chonnam National University Medical School and Chonnam National University Hospital, Gwangju, Republic of Korea
| | - Tae Ryom Oh
- Department of Internal Medicine, Chonnam National University Medical School and Chonnam National University Hospital, Gwangju, Republic of Korea
| | - Sang Heon Suh
- Department of Internal Medicine, Chonnam National University Medical School and Chonnam National University Hospital, Gwangju, Republic of Korea
| | - Hong Sang Choi
- Department of Internal Medicine, Chonnam National University Medical School and Chonnam National University Hospital, Gwangju, Republic of Korea
| | - Chang Seong Kim
- Department of Internal Medicine, Chonnam National University Medical School and Chonnam National University Hospital, Gwangju, Republic of Korea
| | - Soo Wan Kim
- Department of Internal Medicine, Chonnam National University Medical School and Chonnam National University Hospital, Gwangju, Republic of Korea
| | - Eun Hui Bae
- Department of Internal Medicine, Chonnam National University Medical School and Chonnam National University Hospital, Gwangju, Republic of Korea
| | - Seong Kwon Ma
- Department of Internal Medicine, Chonnam National University Medical School and Chonnam National University Hospital, Gwangju, Republic of Korea
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Kim CS, Joo SY, Choi HS, Bae EH, Ma SK, Kim SW. Comparison of the medium cutoff dialyzer and postdilution hemodiafiltration on the removal of small and middle molecule uremic toxins. Kidney Res Clin Pract 2023; 42:712-722. [PMID: 37448285 DOI: 10.23876/j.krcp.21.287] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Accepted: 07/04/2022] [Indexed: 07/15/2023] Open
Abstract
BACKGROUND The medium cutoff (MCO) dialyzer increases the removal of several middle molecules more effectively than high-flux hemodialysis (HD). However, comparative data addressing the efficacy and safety of MCO dialyzers vs. postdilution hemodiafiltration (HDF) in Korean patients are lacking. METHODS Nine patients with chronic HD were included in this pre-post study. Patients underwent HD with an MCO dialyzer for 4 weeks, followed by a 2-week washout period using a high-flux dialyzer to minimize carryover effects, and then turned over to postdilution HDF for 4 weeks. Reduction ratios and differences in the uremic toxins before and after dialysis were calculated from the MCO dialysis, postdilution HDF, and high-flux HD. In the in vitro study, EA.hy926 cells were incubated with dialyzed serum. RESULTS Compared to postdilution HDF, the MCO dialyzer achieved significantly higher reduction ratios for larger middle molecules (myoglobin, kappa free light chain [κFLC], and lambda FLC [λFLC]). Similarly, the differences in myoglobin, κFLC, and λFLC concentrations before and after the last dialysis session were significantly greater in MCO dialysis than in postdilution HDF. The expression of Bax and nuclear factor κB was decreased in the serum after dialysis with the MCO dialyzer than with HDF. CONCLUSION Compared with high-volume postdilution HDF, MCO dialysis did not provide greater removal of molecules below 12,000 Da, whereas it was superior in the removal of larger uremic middle molecule toxins in patients with kidney failure. Moreover, these results may be expected to have an anti-apoptotic effect on the human endothelium.
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Affiliation(s)
- Chang Seong Kim
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Republic of Korea
- Department of Internal Medicine, Chonnam National University Hospital, Gwangju, Republic of Korea
| | - Soo Yeon Joo
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - Hong Sang Choi
- Department of Internal Medicine, Chonnam National University Hospital, Gwangju, Republic of Korea
| | - Eun Hui Bae
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Republic of Korea
- Department of Internal Medicine, Chonnam National University Hospital, Gwangju, Republic of Korea
| | - Seong Kwon Ma
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Republic of Korea
- Department of Internal Medicine, Chonnam National University Hospital, Gwangju, Republic of Korea
| | - Soo Wan Kim
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Republic of Korea
- Department of Internal Medicine, Chonnam National University Hospital, Gwangju, Republic of Korea
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Kim CS, Oh TR, Suh SH, Choi HS, Bae EH, Ma SK, Kim B, Han K, Kim SW. Underweight status and development of end-stage kidney disease: A nationwide population-based study. J Cachexia Sarcopenia Muscle 2023; 14:2184-2195. [PMID: 37503821 PMCID: PMC10570067 DOI: 10.1002/jcsm.13297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 01/24/2023] [Accepted: 06/16/2023] [Indexed: 07/29/2023] Open
Abstract
BACKGROUND Underweight status increases the risk of cardiovascular disease and mortality in the general population. However, whether underweight status is associated with an increased risk of developing end-stage kidney disease is unknown. METHODS A total of 9 845 420 participants aged ≥20 years who underwent health checkups were identified from the Korean National Health Insurance Service database and analysed. Individuals with underweight (body mass index [BMI] < 18.5 kg/m2 ) and obesity (BMI ≥ 25 kg/m2 ) were categorized according to the World Health Organization recommendations for Asian populations. RESULTS During a mean follow-up period of 9.2 ± 1.1 years, 26 406 participants were diagnosed with end-stage kidney disease. After fully adjusting for other potential predictors, the moderate to severe underweight group (<17 kg/m2 ) had a significantly higher risk of end-stage kidney disease than that of the reference (normal) weight group (adjusted hazard ratio, 1.563; 95% confidence interval, 1.337-1.828), and competing risk analysis to address the competing risk of death also showed the similar results (adjusted hazard ratio, 1.228; 95% confidence interval, 1.042-1.448). Compared with that of the reference BMI group (24-25 kg/m2 ), the adjusted hazard ratios for end-stage kidney disease increased as the BMI decreased by 1 kg/m2 . In the sensitivity analysis, sustained underweight status or progression to underweight status over two repeated health checkups, when compared with normal weight status, had a higher hazard ratio for end-stage kidney disease. CONCLUSIONS Underweight status is associated with an increased risk of end-stage kidney disease, and this association gradually strengthens as BMI decreases.
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Affiliation(s)
- Chang Seong Kim
- Department of Internal MedicineChonnam National University Medical SchoolGwangjuSouth Korea
- Department of Internal MedicineChonnam National University HospitalGwangjuSouth Korea
| | - Tae Ryom Oh
- Department of Internal MedicineChonnam National University Medical SchoolGwangjuSouth Korea
- Department of Internal MedicineChonnam National University HospitalGwangjuSouth Korea
| | - Sang Heon Suh
- Department of Internal MedicineChonnam National University Medical SchoolGwangjuSouth Korea
- Department of Internal MedicineChonnam National University HospitalGwangjuSouth Korea
| | - Hong Sang Choi
- Department of Internal MedicineChonnam National University Medical SchoolGwangjuSouth Korea
- Department of Internal MedicineChonnam National University HospitalGwangjuSouth Korea
| | - Eun Hui Bae
- Department of Internal MedicineChonnam National University Medical SchoolGwangjuSouth Korea
- Department of Internal MedicineChonnam National University HospitalGwangjuSouth Korea
| | - Seong Kwon Ma
- Department of Internal MedicineChonnam National University Medical SchoolGwangjuSouth Korea
- Department of Internal MedicineChonnam National University HospitalGwangjuSouth Korea
| | - Bongseong Kim
- Department of Statistics and Actuarial ScienceSoongsil UniversitySeoulSouth Korea
| | - Kyung‐Do Han
- Department of Statistics and Actuarial ScienceSoongsil UniversitySeoulSouth Korea
| | - Soo Wan Kim
- Department of Internal MedicineChonnam National University Medical SchoolGwangjuSouth Korea
- Department of Internal MedicineChonnam National University HospitalGwangjuSouth Korea
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Kim M, Kim SS, Choi HI, Choi HS, Bae EH, Ma SK, Kim SW, Kim CS. Cryofibrinogen-associated membranoproliferative glomerulonephritis. Kidney Int 2023; 104:860. [PMID: 37739621 DOI: 10.1016/j.kint.2023.05.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Revised: 04/13/2023] [Accepted: 05/09/2023] [Indexed: 09/24/2023]
Affiliation(s)
- Minah Kim
- Department of Internal Medicine, Chonnam National University Hwasun Hospital, Hwasun-gun, Republic of Korea
| | - Sung Sun Kim
- Department of Pathology, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - Hoon-In Choi
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Republic of Korea; Department of Internal Medicine, Chonnam National University Hospital, Gwangju, Republic of Korea
| | - Hong Sang Choi
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Republic of Korea; Department of Internal Medicine, Chonnam National University Hospital, Gwangju, Republic of Korea
| | - Eun Hui Bae
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Republic of Korea; Department of Internal Medicine, Chonnam National University Hospital, Gwangju, Republic of Korea
| | - Seong Kwon Ma
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Republic of Korea; Department of Internal Medicine, Chonnam National University Hospital, Gwangju, Republic of Korea
| | - Soo Wan Kim
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Republic of Korea; Department of Internal Medicine, Chonnam National University Hospital, Gwangju, Republic of Korea
| | - Chang Seong Kim
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Republic of Korea; Department of Internal Medicine, Chonnam National University Hospital, Gwangju, Republic of Korea.
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10
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Kim Y, Park HC, Ryu H, Kim YC, Ahn C, Lee KB, Kim YH, Han S, Bae EH, Jeong K, Choi J, Oh KH, Oh YK. Factors Associated With the Development and Severity of Polycystic Liver in Patients With Autosomal Dominant Polycystic Kidney Disease. J Korean Med Sci 2023; 38:e296. [PMID: 37750370 PMCID: PMC10519778 DOI: 10.3346/jkms.2023.38.e296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Accepted: 05/31/2023] [Indexed: 09/27/2023] Open
Abstract
BACKGROUND Factors related to the development and severity of polycystic liver disease (PLD) have not been well established. We aimed to evaluate the genetic and epidemiologic risk factors of PLD in patients with autosomal dominant polycystic kidney disease (ADPKD). METHODS Adult patients with inherited cystic kidney disease were enrolled from May 2019 to May 2021. Demographic, clinical, and laboratory data were collected at the initial study visit. The severity of PLD was graded based on the height-adjusted total liver volume: < 1,000 mL/m (Gr1), 1,000-1,800 mL/m (Gr2), and > 1,800 mL/m (Gr3). Targeted exome sequencing was done by a gene panel including 89 ciliopathy-related genes. We searched out the relative factors to the presence and the severity of PLD using logistic regression analysis. RESULTS Of 602 patients with typical ADPKD, 461 (76.6%) patients had PLD. The patients with PLD showed female predominance and a higher frequency of other ADPKD-related complications. The genetic variants with truncating mutation of PKD1 (PKD1-protein-truncating [PT]) or PKD2 commonly affected the development and severity of PLD. An older age, female sex, and higher kidney volume with Mayo classification 1C-1E was significantly associated with the development of PLD, but not with the severity of PLD. On the other hand, higher body mass index, lower hemoglobin, and higher alkaline phosphatase (ALP) were the significant risk factors of severe PLD (≥ Gr2). CONCLUSION Hepatic involvement in ADPKD could be related to kidney manifestations and genetic variants including PKD1-PT or PKD2. Monitoring hemoglobin and ALP and evaluating the genetic variants might help predict severe PLD. TRIAL REGISTRATION Clinical Research Information Service Identifier: KCT0005580.
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Affiliation(s)
- Yaerim Kim
- Department of Internal Medicine, Keimyung University School of Medicine, Daegu, Korea
| | - Hayne Cho Park
- Department of Internal Medicine, Hallym University College of Medicine, Seoul, Korea
| | - Hyunjin Ryu
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Yong Chul Kim
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Curie Ahn
- Department of Internal Medicine, National Medical Center, Seoul, Korea
| | - Kyu-Beck Lee
- Department of Internal Medicine, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Yeong Hoon Kim
- Department of Internal Medicine, Inje University College of Medicine, Busan Paik Hospital, Busan, Korea
| | - Seungyeup Han
- Department of Internal Medicine, Keimyung University School of Medicine, Daegu, Korea
| | - Eun Hui Bae
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Korea
| | - Kyungjo Jeong
- Department of Biomedical Sciences, Korea University College of Medicine, Seoul, Korea
| | - Jungmin Choi
- Department of Biomedical Sciences, Korea University College of Medicine, Seoul, Korea
| | - Kook-Hwan Oh
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Yun Kyu Oh
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
- Department of Internal Medicine, Seoul Metropolitan Government-Seoul National University Boramae Medical Center, Seoul, Korea.
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11
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Choi SJ, Kim SH, Lee MS, Park S, Cho E, Han SS, Koh ES, Chung BH, Jeong KH, Bae EH, Lee EY, Kwon YJ. A questionnaire survey on the diagnosis and treatment of Fabry nephropathy in clinical practice. Kidney Res Clin Pract 2023; 42:628-638. [PMID: 37448283 PMCID: PMC10565450 DOI: 10.23876/j.krcp.22.235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2022] [Revised: 01/27/2023] [Accepted: 02/06/2023] [Indexed: 07/15/2023] Open
Abstract
BACKGROUND Fabry nephropathy is characterized by a deficiency of lysosomal alpha-galactosidase A, which results in proteinuria and kidney disease. The ineffectiveness of enzyme replacement therapy (ERT) for severe kidney failure highlights the need for early detection and meaningful markers. However, because the diagnosis and treatment of Fabry disease can vary according to the expertise of physicians, we evaluated the opinions of Korean specialists. METHODS A questionnaire regarding the management of Fabry nephropathy was emailed to healthcare providers with the experience or ability to treat individuals with Fabry nephropathy. RESULTS Of the 70 experts who responded to the survey, 43 were nephrologists, and 64.3% of the respondents reported having treated patients with Fabry disease. Pediatricians are treating primarily patients with classic types of the disease, while nephrologists and cardiologists are treating more patients with variant types. Only 40.7% of non-nephrologists agreed that a kidney biopsy was required at the time of diagnosis, compared with 81.4% of nephrologists. Thirty-eight of 70 respondents (54.3%) reported measuring globotriaosylsphingosine (lyso-Gb3) as a biomarker. The most common period to measure lyso-Gb3 was at the time of diagnosis, followed by after ERT, before ERT, and at screening. For the stage at which ERT should begin, microalbuminuria and proteinuria were chosen by 51.8% and 28.6% of respondents, respectively. CONCLUSION Nephrologists are more likely to treat variant Fabry disease rather than classic cases, and they agree that ERT should be initiated early in Fabry nephropathy, using lyso-Gb3 as a biomarker.
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Affiliation(s)
- Soo Jeong Choi
- Department of Internal Medicine, Soonchunhyang University Bucheon Hospital, Soonchunhyang University College of Medicine, Bucheon, Republic of Korea
| | - Su Hyun Kim
- Department of Internal Medicine, Chung-Ang University Gwangmyeong Hospital, Chung-Ang University College of Medicine, Gwangmyeong, Republic of Korea
| | - Min Sung Lee
- Department of Internal Medicine, Ewha Womans University Medical Center, Seoul, Republic of Korea
| | - Samel Park
- Department of Internal Medicine, Soonchunhyang University Cheonan Hospital, Cheonan, Republic of Korea
| | - Eunjung Cho
- Department of Internal Medicine, Korea University Guro Hospital, Korea University College of Medicine, Seoul, Republic of Korea
| | - Seung Seok Han
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Republic of Kore
| | - Eun Sil Koh
- Department of Internal Medicine, Yeouido St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Byung Ha Chung
- Department of Internal Medicine, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Kyung Hwan Jeong
- Department of Internal Medicine, Kyung Hee University College of Medicine, Seoul, Republic of Korea
| | - Eun Hui Bae
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - Eun Young Lee
- Department of Internal Medicine, Soonchunhyang University Cheonan Hospital, Cheonan, Republic of Korea
| | - Young Joo Kwon
- Department of Internal Medicine, Korea University Guro Hospital, Korea University College of Medicine, Seoul, Republic of Korea
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12
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Kim J, Song SH, Oh TR, Suh SH, Choi HS, Kim CS, Ma SK, Kim SW, Bae EH. Prognostic role of the neutrophil-to-lymphocyte ratio in patients with chronic kidney disease. Korean J Intern Med 2023; 38:725-733. [PMID: 37586809 PMCID: PMC10493449 DOI: 10.3904/kjim.2023.171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Revised: 06/05/2023] [Accepted: 06/12/2023] [Indexed: 08/18/2023] Open
Abstract
BACKGROUND/AIMS The neutrophil-to-lymphocyte ratio (NLR) has a prognostic value in cardiovascular disease, infection, inflammatory disease, and several malignancies. Therefore, the NLR has a possible predictive value in patients with chronic kidney disease (CKD), but this predictive value has not been validated. Here, we aimed to investigate the possibility of NLR as a predictor of CKD progression. METHODS This retrospective observational study included 141 patients with non-dialysis CKD. The participants were divided into terciles (T1, T2, and T3) according to NLR. The primary outcome was defined as a composite kidney event, which included a decline in the estimated glomerular filtration rate (eGFR) of at least 50% or initiation of renal replacement therapy during the follow-up period. RESULTS The mean follow-up duration was 5.45 ± 2.11 years. The mean NLRs were 1.35 ± 0.05 in T1 (n = 47), 2.16 ± 0.04 in T2 (n = 47), and 4.29 ± 0.73 in T3 (n = 47). The group with the highest NLR (T3) had higher baseline CKD and serum creatinine and lower eGFR levels than the group with the lowest NLR (T1). The cumulative incidence rate of composite kidney events was significantly higher in T3 compared with T1 (p < 0.001, log-rank test). Cox regression analysis revealed that high NLR was associated with the risk of composite kidney events (adjusted hazard ratio, 3.33; 95% confidence interval, 1.43-7.76). CONCLUSION A higher NLR reflects the more advanced stage of CKD and suggests a role for NLR as a biomarker for predicting CKD progression.
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Affiliation(s)
- Jin Kim
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Korea
| | - Su Hyun Song
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Korea
| | - Tae Ryom Oh
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Korea
| | - Sang Heon Suh
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Korea
| | - Hong Sang Choi
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Korea
| | - Chang Seong Kim
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Korea
| | - Seong Kwon Ma
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Korea
| | - Soo Wan Kim
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Korea
| | - Eun Hui Bae
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Korea
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13
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Kim J, Ma SK, Kim SW, Bae EH. Unilateral renal displacement in an autosomal dominant polycystic kidney disease patient. Kidney Res Clin Pract 2023; 42:660-661. [PMID: 37813526 PMCID: PMC10565454 DOI: 10.23876/j.krcp.23.185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Accepted: 07/20/2023] [Indexed: 10/13/2023] Open
Affiliation(s)
- Jin Kim
- Department of Internal Medicine, Chonnam National University Hospital, Gwangju, Republic of Korea
| | - Seong Kwon Ma
- Department of Internal Medicine, Chonnam National University Hospital, Gwangju, Republic of Korea
| | - Soo Wan Kim
- Department of Internal Medicine, Chonnam National University Hospital, Gwangju, Republic of Korea
| | - Eun Hui Bae
- Department of Internal Medicine, Chonnam National University Hospital, Gwangju, Republic of Korea
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14
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Cho JM, Park HC, Lee JW, Ryu H, Kim YC, Ahn C, Lee KB, Kim YH, Han S, Kim Y, Bae EH, Kang HG, Park E, Jeong K, Kang S, Choi J, Oh KH, Oh YK. Baseline characteristics of the Korean genetic cohort of inherited cystic kidney disease. Kidney Res Clin Pract 2023; 42:617-627. [PMID: 37813524 PMCID: PMC10565461 DOI: 10.23876/j.krcp.23.097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2023] [Revised: 06/07/2023] [Accepted: 06/28/2023] [Indexed: 10/13/2023] Open
Abstract
BACKGROUND Identifying genetic mutations in individuals with inherited cystic kidney disease is necessary for precise treatment. We aimed to elucidate the genetic characteristics of cystic kidney disease in the Korean population. METHODS We conducted a 3-year prospective, multicenter cohort study at eight hospitals from May 2019 to May 2022. Patients with more than three renal cysts were enrolled and classified into two categories, typical autosomal dominant polycystic kidney disease (ADPKD) and atypical PKD. We identified the clinical characteristics and performed a genetic analysis using a targeted gene panel. RESULTS A total of 725 adult patients were included in the study, of which 560 (77.2%) were diagnosed with typical ADPKD and 165 (22.8%) had atypical PKD. Among the typical ADPKD cases, the Mayo imaging classification was as follows: 1A (55, 9.9%), 1B (149, 26.6%), 1C (198, 35.8%), 1D (90, 16.3%), and 1E (61, 11.0%). The atypical PKD cases were classified as bilateral cystic with bilateral atrophic (31, 37.3%), lopsided (27, 32.5%), unilateral (nine, 10.8%), segmental (eight, 9.6%), bilateral cystic with unilateral atrophic (seven, 8.4%), and asymmetric (one, 1.2%). Pathogenic variants were found in 64.3% of the patients using the ciliopathy-related targeted gene panel. The typical ADPKD group demonstrated a higher discovery rate (62.3%) than the atypical PKD group (41.8%). CONCLUSION We present a nationwide genetic cohort's baseline clinical and genetic characteristics for Korean cystic kidney disease.
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Affiliation(s)
- Jeong Min Cho
- Department of Internal Medicine, Seoul National University Hospital, Seoul, Republic of Korea
| | - Hayne Cho Park
- Department of Internal Medicine, Hallym University Kangnam Sacred Heart Hospital, Seoul, Republic of Korea
- Kidney Research Institute, Hallym University College of Medicine, Seoul, Republic of Korea
| | - Jin Woo Lee
- Department of Internal Medicine, Seoul National University Hospital, Seoul, Republic of Korea
| | - Hyunjin Ryu
- Department of Internal Medicine, Seoul National University Hospital, Seoul, Republic of Korea
| | - Yong Chul Kim
- Department of Internal Medicine, Seoul National University Hospital, Seoul, Republic of Korea
| | - Curie Ahn
- Department of Internal Medicine, National Medical Center, Seoul, Republic of Korea
| | - Kyu-Beck Lee
- Department of Internal Medicine, Kangbuk Samsung Hospital, Seoul, Republic of Korea
| | - Yeong Hoon Kim
- Department of Internal Medicine, Busan Paik Hospital, Inje University College of Medicine, Busan, Republic of Korea
| | - Seungyeup Han
- Department of Internal Medicine, Keimyung University School of Medicine, Daegu, Republic of Korea
| | - Yaerim Kim
- Department of Internal Medicine, Keimyung University School of Medicine, Daegu, Republic of Korea
| | - Eun Hui Bae
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - Hee Gyung Kang
- Department of Pediatrics, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Eujin Park
- Department of Pediatrics, Hallym University Kangnam Sacred Heart Hospital, Seoul, Republic of Korea
| | - Kyungjo Jeong
- Department of Biomedical Sciences, Korea University College of Medicine, Seoul, Republic of Korea
| | - Seoon Kang
- Department of Biomedical Sciences, Korea University College of Medicine, Seoul, Republic of Korea
| | - Jungmin Choi
- Department of Biomedical Sciences, Korea University College of Medicine, Seoul, Republic of Korea
| | - Kook-Hwan Oh
- Department of Internal Medicine, Seoul National University Hospital, Seoul, Republic of Korea
| | - Yun Kyu Oh
- Department of Internal Medicine, Seoul Metropolitan Government Seoul National University Boramae Medical Center, Seoul, Republic of Korea
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15
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Park S, Beom DG, Bae EH, Kim SW, Kim DJ, Kim CS. Model-Based Needle Identification Using Image Analysis and Needle Library Matching for Ultrasound-Guided Kidney Biopsy: A Feasibility Study. Ultrasound Med Biol 2023; 49:1699-1708. [PMID: 37137741 DOI: 10.1016/j.ultrasmedbio.2023.03.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 03/05/2023] [Accepted: 03/07/2023] [Indexed: 05/05/2023]
Abstract
OBJECTIVE The aim of the work described here was to determine the feasibility of using a novel biopsy needle detection technique that achieves high sensitivity and specificity in a trade-off of resolution, detectability and depth of imaging. METHODS The proposed needle detection method consists of a model-based image analysis, temporal needle projection and needle library matching: (i) Image analysis was formulated under the signal decomposition framework; (ii) temporal projection converted the time-resolved needle dynamics into a single image of the desired needle; and (iii) the enhanced needle structure was spatially refined by matching a long, straight linear object in the needle library. The efficacy was examined with respect to different needle visibility. RESULTS Our method effectively eliminated confounding effects of the background tissue artifacts more robustly than conventional methods, thus improving needle visibility even with the low contrast between the needle and tissue. The improvement in needle structure further resulted in an improvement in estimation performance for the trajectory angle and tip position. CONCLUSION Our three-step needle detection method can reliably detect needle position without the need for external devices, increasing the needle conspicuity and reducing motion sensitivity.
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Affiliation(s)
- Suhyung Park
- Department of Computer Engineering, Chonnam National University, Gwangju, Republic of Korea; Department of ICT Convergence System Engineering, Chonnam National University, Gwangju, Republic of Korea
| | - Dong Gyu Beom
- Department of Computer Engineering, Chonnam National University, Gwangju, Republic of Korea
| | - Eun Hui Bae
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Republic of Korea; Department of Internal Medicine, Chonnam National University Hospital, Gwangju, Republic of Korea
| | - Soo Wan Kim
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Republic of Korea; Department of Internal Medicine, Chonnam National University Hospital, Gwangju, Republic of Korea
| | - Dong Joon Kim
- Department of Anesthesiology and Pain Medicine, Chosun University Medical School, Gwangju, Republic of Korea; Department of Anesthesiology and Pain Medicine, Chosun University Hospital, Gwangju, Republic of Korea
| | - Chang Seong Kim
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Republic of Korea; Department of Internal Medicine, Chonnam National University Hospital, Gwangju, Republic of Korea.
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Kim CS, Oh TR, Suh SH, Choi HS, Bae EH, Ma SK, Jung JH, Kim B, Han KD, Kim SW. Uncontrolled hypertension is associated with increased risk of graft failure in kidney transplant recipients: a nationwide population-based study. Front Cardiovasc Med 2023; 10:1185001. [PMID: 37522087 PMCID: PMC10379652 DOI: 10.3389/fcvm.2023.1185001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Accepted: 07/04/2023] [Indexed: 08/01/2023] Open
Abstract
Backgroud Hypertension is highly prevalent in patients with kidney transplantation caused by transplantation-related immunologic or non-immunologic risk factors. However, whether a strict definition of hypertension (≥130/80 mmHg) and subdivided blood pressure (BP) groups are associated with an increased risk of graft failure after kidney transplantation using a nationwide large cohort study are still unknown. Methods Using Korean National Health Insurance Service data, we included 14,249 patients who underwent kidney transplantation from 2002 to 2016. Patients were categorized into five BP groups according to the 2021 Kidney Disease: Improving Global Outcomes practice guidelines for BP management: normal BP (<120/80 mmHg), elevated BP (120-129/ < 80 mmHg), incident hypertension (≥130/80 mmHg), and controlled or uncontrolled hypertension with anti-hypertensive medications. Results The primary outcome was graft failure, which occurred in 1934 (13.6%) participants during the 6-year follow-up. After adjusting for covariates, hypertension was associated with a higher risk of graft failure [Adjusted hazard ratio (AHR), 1.70; 95% confidence interval (CI), 1.48-1.96)] than no-hypertension. The AHR for graft failure was the highest in patients with uncontrolled hypertension (AHR, 2.13; 95% CI, 1.80-2.52). The risk of graft failure had a linear relationship with systolic and diastolic BP, and pulse pressure. Conclusions In this nationwide population-based study, hypertension ≥130/80 mmHg based on the 2021 KDIGO BP guidelines in kidney transplantion recipients, and elevated systolic and diastolic BP, and pulse pressure were associated with the risk of developing graft failure in kidney transplant recipients.
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Affiliation(s)
- Chang Seong Kim
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Republic of Korea
- Department of Internal Medicine, Chonnam National University Hospital, Gwangju, Republic of Korea
| | - Tae Ryom Oh
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Republic of Korea
- Department of Internal Medicine, Chonnam National University Hospital, Gwangju, Republic of Korea
| | - Sang Heon Suh
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Republic of Korea
- Department of Internal Medicine, Chonnam National University Hospital, Gwangju, Republic of Korea
| | - Hong Sang Choi
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Republic of Korea
- Department of Internal Medicine, Chonnam National University Hospital, Gwangju, Republic of Korea
| | - Eun Hui Bae
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Republic of Korea
- Department of Internal Medicine, Chonnam National University Hospital, Gwangju, Republic of Korea
| | - Seong Kwon Ma
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Republic of Korea
- Department of Internal Medicine, Chonnam National University Hospital, Gwangju, Republic of Korea
| | - Jin Hyung Jung
- Department of Biostatistics, College of Medicine, Catholic University of Korea, Seoul, Republic of Korea
| | - Bongseong Kim
- Department of Statistics and Actuarial Science, Soongsil University, Seoul, Republic of Korea
| | - Kyung-Do Han
- Department of Statistics and Actuarial Science, Soongsil University, Seoul, Republic of Korea
| | - Soo Wan Kim
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Republic of Korea
- Department of Internal Medicine, Chonnam National University Hospital, Gwangju, Republic of Korea
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17
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Suh SH, Oh TR, Choi HS, Kim CS, Bae EH, Ma SK, Oh KH, Yoo TH, Chae DW, Kim SW. Correction to "Association between urinary chloride excretion and progression of coronary artery calcification in patients with non-dialysis chronic kidney disease: results from KNOW-CKD study". Kidney Res Clin Pract 2023; 42:538. [PMID: 37551129 PMCID: PMC10407643 DOI: 10.23876/j.krcp.22.072.e1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Accepted: 07/17/2023] [Indexed: 08/09/2023] Open
Affiliation(s)
- Sang Heon Suh
- Department of Internal Medicine, Chonnam National University Hospital, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - Tae Ryom Oh
- Department of Internal Medicine, Chonnam National University Hospital, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - Hong Sang Choi
- Department of Internal Medicine, Chonnam National University Hospital, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - Chang Seong Kim
- Department of Internal Medicine, Chonnam National University Hospital, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - Eun Hui Bae
- Department of Internal Medicine, Chonnam National University Hospital, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - Seong Kwon Ma
- Department of Internal Medicine, Chonnam National University Hospital, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - Kook-Hwan Oh
- Department of Internal Medicine, Seoul National University Hospital, Seoul, Republic of Korea
| | - Tae-Hyun Yoo
- Department of Internal Medicine and Institute of Kidney Disease Research, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Dong-Wan Chae
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Republic of Korea
| | - Soo Wan Kim
- Department of Internal Medicine, Chonnam National University Hospital, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - the Korean Cohort Study for Outcomes in Patients With Chronic Kidney Disease (KNOW-CKD) Investigators
- Department of Internal Medicine, Chonnam National University Hospital, Chonnam National University Medical School, Gwangju, Republic of Korea
- Department of Internal Medicine, Seoul National University Hospital, Seoul, Republic of Korea
- Department of Internal Medicine and Institute of Kidney Disease Research, Yonsei University College of Medicine, Seoul, Republic of Korea
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Republic of Korea
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Choi N, Kim SH, Bae EH, Yang EM, Lee KH, Lee SH, Lee JH, Ahn YH, Cheong HI, Kang HG, Hyun HS, Kim JH. Corrigendum: Long-term outcome of Bartter syndrome in 54 patients: a multicenter study in Korea. Front Med (Lausanne) 2023; 10:1225353. [PMID: 37324139 PMCID: PMC10266263 DOI: 10.3389/fmed.2023.1225353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Accepted: 05/22/2023] [Indexed: 06/17/2023] Open
Abstract
[This corrects the article DOI: 10.3389/fmed.2023.1099840.].
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Affiliation(s)
- Naye Choi
- Department of Pediatrics, Seoul National University College of Medicine, Seoul, Republic of Korea
- Department of Pediatrics, Seoul National University Children's Hospital, Seoul, Republic of Korea
| | - Seong Heon Kim
- Department of Pediatrics, Seoul National University College of Medicine, Seoul, Republic of Korea
- Department of Pediatrics, Seoul National University Children's Hospital, Seoul, Republic of Korea
| | - Eun Hui Bae
- Department of Internal Medicine, Medical School, Chonnam National University, Gwangju, Republic of Korea
| | - Eun Mi Yang
- Department of Pediatrics, Chonnam National University Hospital, Gwangju, Republic of Korea
| | - Keum Hwa Lee
- Department of Pediatrics, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Sang-Ho Lee
- Department of Internal Medicine, Kyung Hee University Hospital at Gangdong, Seoul, Republic of Korea
| | - Joo Hoon Lee
- Department of Pediatrics, Ulsan University Asan Medical Center, Seoul, Republic of Korea
| | - Yo Han Ahn
- Department of Pediatrics, Seoul National University College of Medicine, Seoul, Republic of Korea
- Department of Pediatrics, Seoul National University Children's Hospital, Seoul, Republic of Korea
- Kidney Research Institute, Seoul National University Medical Research Center, Seoul, Republic of Korea
| | - Hae Il Cheong
- Department of Pediatrics, Hallym University Sacred Heart Hospital, Anyang, Republic of Korea
| | - Hee Gyung Kang
- Department of Pediatrics, Seoul National University College of Medicine, Seoul, Republic of Korea
- Department of Pediatrics, Seoul National University Children's Hospital, Seoul, Republic of Korea
- Kidney Research Institute, Seoul National University Medical Research Center, Seoul, Republic of Korea
- Wide River Institute of Immunology, Seoul National University, Hongcheon, Republic of Korea
| | - Hye Sun Hyun
- Department of Pediatrics, College of Medicine, St. Vincent's Hospital, The Catholic University of Korea, Seoul, Republic of Korea
| | - Ji Hyun Kim
- Department of Pediatrics, Seoul National University College of Medicine, Seoul, Republic of Korea
- Department of Pediatrics, Seoul National University Bundang Hospital, Seongnam, Republic of Korea
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Suh SH, Oh TR, Choi HS, Kim CS, Bae EH, Ma SK, Oh KH, Hyun YY, Sung S, Kim SW. Urinary Phosphorus Excretion and Cardiovascular Outcomes in Patients with Pre-Dialysis Chronic Kidney Disease: The KNOW-CKD Study. Nutrients 2023; 15:nu15102267. [PMID: 37242150 DOI: 10.3390/nu15102267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 05/08/2023] [Accepted: 05/08/2023] [Indexed: 05/28/2023] Open
Abstract
The relationship between 24-h urinary phosphorus excretion (24 h UPE) and cardiovascular disease in patients with pre-dialysis chronic kidney disease (CKD) has rarely been studied, despite the fact that the relationship between serum phosphorus level and the risk of a cardiovascular event is well established. A total of 1701 patients with pre-dialysis CKD were finally included for the analyses and were divided into tertiles by 24 h UPE (first tertile (T1, 349.557 (mean) ± 88.413 (standard deviation)), second tertile (T2, 557.530 ± 50.738), and third tertile (T3, 851.695 ± 171.593). The study outcome was a six-point major adverse cardiac event (MACE). The median follow-up duration was 7.992 years. Kaplan-Meier curve analysis visualized that the cumulative incidences of a six-point MACE (p = 0.029) significantly differed from 24 h UPE levels, as the incidence rate of the study outcomes was highest in T1 and lowest in T3. Cox proportional hazard models unveiled that, compared to T1, the risk of a six-point MACE was significantly decreased in T3 (adjusted hazard ratio (HR) 0.376, 95% confidence interval (CI) 0.207 to 0.683). The restricted cubic spline curve analysis visualized an inverted S-shaped association between 24 h UPE level and the risk of a six-point MACE, indicating a significantly increased risk of a six-point MACE in patients with a low 24 h UPE level. In conclusion, low 24 h UPE is associated with adverse cardiovascular outcomes in patients with CKD. Our finding emphasizes that low 24 h UPE should not be a reliable marker for dietary restriction of phosphorus that essentially leads to better outcomes in patients with CKD.
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Grants
- 2011E3300300, 2012E3301100, 2013E3301600, 2013E3301601, 2013E3301602, 2016E3300200, 2016E3300201, 2016E3300202, 2019E320100, 2019E320101, 2019E320102 and 2022-11-007 the Research Program funded by the Korea Disease Control and Prevention Agency
- NRF-2019R1A2C2086276 the National Research Foundation of Korea (NRF) funded by the Korea government (MSIT)
- BCRI22079, BCRI22042 Chonnam National University Hospital Biomedical Research Institute
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Affiliation(s)
- Sang Heon Suh
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju 61469, Republic of Korea
- Department of Internal Medicine, Chonnam National University Hospital, Gwangju 61469, Republic of Korea
| | - Tae Ryom Oh
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju 61469, Republic of Korea
- Department of Internal Medicine, Chonnam National University Hospital, Gwangju 61469, Republic of Korea
| | - Hong Sang Choi
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju 61469, Republic of Korea
- Department of Internal Medicine, Chonnam National University Hospital, Gwangju 61469, Republic of Korea
| | - Chang Seong Kim
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju 61469, Republic of Korea
- Department of Internal Medicine, Chonnam National University Hospital, Gwangju 61469, Republic of Korea
| | - Eun Hui Bae
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju 61469, Republic of Korea
- Department of Internal Medicine, Chonnam National University Hospital, Gwangju 61469, Republic of Korea
| | - Seong Kwon Ma
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju 61469, Republic of Korea
- Department of Internal Medicine, Chonnam National University Hospital, Gwangju 61469, Republic of Korea
| | - Kook-Hwan Oh
- Department of Internal Medicine, Seoul National University Hospital, Seoul 03080, Republic of Korea
| | - Young Youl Hyun
- Department of Internal Medicine, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul 03181, Republic of Korea
| | - Suah Sung
- Department of Internal Medicine, Eulji Medical Center, Eulji University, Seoul 01830, Republic of Korea
| | - Soo Wan Kim
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju 61469, Republic of Korea
- Department of Internal Medicine, Chonnam National University Hospital, Gwangju 61469, Republic of Korea
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Bae EH, Lim SY, Yang EM, Oh TR, Choi HS, Kim CS, Ma SK, Kim B, Han KD, Kim SW. The effects of socioeconomic status on major adverse cardiovascular events: a nationwide population-based cohort study. Kidney Res Clin Pract 2023; 42:229-242. [PMID: 37037483 PMCID: PMC10085725 DOI: 10.23876/j.krcp.21.249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Accepted: 06/28/2022] [Indexed: 04/03/2023] Open
Abstract
Background: Although multiple factors influence the risk of major adverse cardiovascular events (MACE), the effects of socioeconomic status on MACE in the presence and absence of renal dysfunction (RD) have not been comprehensively explored in Korea. Methods: We examined the effects of socioeconomic status on MACE in individuals with and without RD. The data of 44,473 Koreans from 2008 to 2017 were obtained from the Health Care Big Data Platform of the Ministry of Health and Welfare in Korea. Their socioeconomic status was assessed using a socioeconomic score (SES) based on marital status, education, household income, and occupation. The incidence of myocardial infarction (MI), stroke, and death was compared according to SES level (0–4). Multiple linear regression analysis was used to evaluate the hazard ratios and 95% confidence intervals for outcomes based on participant SES. Results: MI risk was only affected by education level. The participants’ income, education, and SES affected their stroke risk, whereas death was associated with all four socioeconomic factors. The incidence of stroke and death increased as SES worsened (from 0 to 4). SES was positively related to risk of stroke and death in participants without RD. SES did not affect MI, stroke, or death in participants with RD. Conclusion: A low socioeconomic status is associated with risk of stroke and death, especially in individuals without RD.
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Affiliation(s)
- Eun Hui Bae
- Department of Internal Medicine, Chonnam National University Hospital, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - Sang Yup Lim
- Department of Internal Medicine, Korea University Ansan Hospital, Ansan, Republic of Korea
| | - Eun Mi Yang
- Department of Pediatrics, Chonnam National University Hospital, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - Tae Ryom Oh
- Department of Internal Medicine, Chonnam National University Hospital, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - Hong Sang Choi
- Department of Internal Medicine, Chonnam National University Hospital, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - Chang Seong Kim
- Department of Internal Medicine, Chonnam National University Hospital, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - Seong Kwon Ma
- Department of Internal Medicine, Chonnam National University Hospital, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - Bongseong Kim
- Department of Statistics and Actuarial Science, Soongsil University, Seoul, Republic of Korea
| | - Kyung-Do Han
- Department of Statistics and Actuarial Science, Soongsil University, Seoul, Republic of Korea
- Correspondence: Kyung-Do Han Department of Statistics and Actuarial Science, Soongsil University, 369 Sangdo-ro, Dongjak-gu, Seoul 06978, Republic of Korea. E-mail:
| | - Soo Wan Kim
- Department of Internal Medicine, Chonnam National University Hospital, Chonnam National University Medical School, Gwangju, Republic of Korea
- Soo Wan Kim Department of Internal Medicine, Chonnam National University Medical School, 42 Jebongro, Dong-gu, Gwangju 61469, Republic of Korea. E-mail:
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Lee J, Ryu H, Kim YC, Park HC, Ahn C, Lee KB, Kim YH, Kim Y, Han S, Bae EH, Oh KH, Oh YK. Nutritional status is associated with preserved kidney function in patients with autosomal dominant polycystic kidney disease. J Ren Nutr 2023:S1051-2276(23)00042-0. [PMID: 36965751 DOI: 10.1053/j.jrn.2023.02.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 11/02/2022] [Accepted: 02/27/2023] [Indexed: 03/27/2023] Open
Abstract
OBJECTIVE Malnutrition is a common complication in autosomal dominant polycystic kidney disease (ADPKD). We examined whether nutritional status is associated with the preservation of kidney function, using a cohort of typical ADPKD. METHODS We enrolled ambulatory ADPKD patients in nine tertiary medical centers in Korea from May 2019 to December 2021. We excluded patients who were aged less than 18 years, who had known end-stage kidney disease at the time of enrollment, who had a diagnosis of atypical ADPKD, and who were Tolvaptan users. The primary outcome was an estimated glomerular filtration rate (eGFR) decline >3 mL/min/1.73m2, based on nutritional status assessed by subjective global assessment (SGA). We also evaluated an eGFR decline >1 mL/min/1.73m2, an increase in urine protein-creatinine ratio (UPCR) >0, and an increase in UPCR >0.3 as secondary outcomes, based on SGA after the one-year follow-up. A logistic regression (LR) model was used to calculate the odds ratio (OR) for the primary outcome. Because there were differences in several baseline variables, such as Mayo classification, serum hemoglobin, serum creatinine, and UPCR between SGA groups, we matched propensity scores. RESULTS In total, 805 patients were prospectively enrolled in nine tertiary medical centers in Korea from May 2019 to December 2021. Among them, 236 patients who had one-year follow-up data and typical imaging findings were analyzed to evaluate the effect of nutritional status on kidney function. SGA was used to assess the nutritional status. The mean age was 45.0 ± 13.3 years, and 49.6% of the patients were female. The mean eGFR was 81.9 ml/min/1.73m2. Among the 236 patients, 91 (38.6%) experienced a one-year eGFR decline >3 mL/min/1.73m2. When a multivariable LR was applied, SGA 3-6 was identified as a significant factor related to a one-year eGFR decline >3 mL/min/1.73m2 (adjusted OR = 1.22 [1.04-1.43]; P = 0.017). Despite matching propensity scores, the one-year eGFR decline >3 mL/min/1.73m2 was still higher in the SGA 3-6 group regardless of proteinuria. CONCLUSION Good nutritional status is associated with better-preserved kidney function in non-obese typical ADPKD patients who do not take Tolvaptan.
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Affiliation(s)
- Jinwoo Lee
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Hyunjin Ryu
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Yong-Chul Kim
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Hayne Cho Park
- Department of Internal Medicine, Hallym University College of Medicine, Seoul, Korea
| | - Curie Ahn
- Department of Internal Medicine, National Medical Center, Seoul, Korea
| | - Kyu-Beck Lee
- Department of Internal Medicine, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Yeong Hoon Kim
- Department of Internal Medicine, Inje University College of Medicine, Busan, Korea
| | - Yaerim Kim
- Department of Internal Medicine, Keimyung University School of Medicine, Daegu, Korea
| | - Seungyeop Han
- Department of Internal Medicine, Keimyung University School of Medicine, Daegu, Korea
| | - Eun Hui Bae
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Korea
| | - Kook-Hwan Oh
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Yun Kyu Oh
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea; Department of Internal Medicine, Seoul Metropolitan Government Seoul National University Boramae Medical Center, Seoul, Korea.
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Choi N, Kim SH, Bae EH, Yang EM, Lee GH, Lee SH, Lee JH, Ahn YH, Cheong HI, Kang HG, Hyun HS, Kim JH. Long-term outcome of Bartter syndrome in 54 patients: A multicenter study in Korea. Front Med (Lausanne) 2023; 10:1099840. [PMID: 36993809 PMCID: PMC10040751 DOI: 10.3389/fmed.2023.1099840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Accepted: 02/16/2023] [Indexed: 03/14/2023] Open
Abstract
IntroductionBartter syndrome (BS) is a rare salt-wasting tubulopathy caused by mutations in genes encoding sodium, potassium, or chloride transporters of the thick ascending limb of the loop of Henle and/or the distal convoluted tubule of the kidney. BS is characterized by polyuria, failure to thrive, hypokalemia, metabolic alkalosis, hyperreninemia, and hyperaldosteronism. Potassium and/or sodium supplements, potassium-sparing diuretics, and nonsteroidal anti-inflammatory drugs can be used to treat BS. While its symptoms and initial management are relatively well known, long-term outcomes and treatments are scarce.MethodsWe retrospectively reviewed 54 Korean patients who were clinically or genetically diagnosed with BS from seven centers in Korea.ResultsAll patients included in this study were clinically or genetically diagnosed with BS at a median age of 5 (range, 0–271) months, and their median follow-up was 8 (range, 0.5–27) years. Genetic diagnosis of BS was confirmed in 39 patients: 4 had SLC12A1 gene mutations, 1 had KCNJ1 gene mutations, 33 had CLCNKB gene mutations, and 1 had BSND mutation. Potassium chloride supplements and potassium-sparing diuretics were administered in 94% and 68% of patients, respectively. The mean dosage of potassium chloride supplements was 5.0 and 2.1 mEq/day/kg for patients younger and older than 18 years, respectively. Nephrocalcinosis was a common finding of BS, and it also improved with age in some patients. At the last follow-up of 8 years after the initial diagnosis, 41% had short stature (height less than 3rd percentile) and impaired kidney function was observed in six patients [chronic kidney disease (CKD) G3, n = 4; CKD G5, n = 2].ConclusionBS patients require a large amount of potassium supplementation along with potassium-sparing agents throughout their lives, but tend to improve with age. Despite management, a significant portion of this population exhibited growth impairment, while 11% developed CKD G3–G5.
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Affiliation(s)
- Naye Choi
- Department of Pediatrics, Seoul National University College of Medicine, Seoul, Republic of Korea
- Department of Pediatrics, Seoul National University Children's Hospital, Seoul, Republic of Korea
| | - Seong Heon Kim
- Department of Pediatrics, Seoul National University College of Medicine, Seoul, Republic of Korea
- Department of Pediatrics, Seoul National University Children's Hospital, Seoul, Republic of Korea
| | - Eun Hui Bae
- Department of Internal Medicine, Medical School, Chonnam National University, Gwangju, Republic of Korea
| | - Eun Mi Yang
- Department of Pediatrics, Chonnam National University Hospital, Gwangju, Republic of Korea
| | - Geum Hwa Lee
- Department of Pediatrics, Yonsei University Severance Children's Hospital, Seoul, Republic of Korea
| | - Sang-Ho Lee
- Department of Internal Medicine, Kyung Hee University Hospital at Gangdong, Seoul, Republic of Korea
| | - Joo Hoon Lee
- Department of Pediatrics, Ulsan University Asan Medical Center, Seoul, Republic of Korea
| | - Yo Han Ahn
- Department of Pediatrics, Seoul National University College of Medicine, Seoul, Republic of Korea
- Department of Pediatrics, Seoul National University Children's Hospital, Seoul, Republic of Korea
- Kidney Research Institute, Seoul National University Medical Research Center, Seoul, Republic of Korea
| | - Hae Il Cheong
- Department of Pediatrics, Hallym University Sacred Heart Hospital, Anyang, Republic of Korea
| | - Hee Gyung Kang
- Department of Pediatrics, Seoul National University College of Medicine, Seoul, Republic of Korea
- Department of Pediatrics, Seoul National University Children's Hospital, Seoul, Republic of Korea
- Kidney Research Institute, Seoul National University Medical Research Center, Seoul, Republic of Korea
- Wide River Institute of Immunology, Seoul National University, Hongcheon, Republic of Korea
| | - Hye Sun Hyun
- Department of Pediatrics, Collage of Medicine, St. Vincent's Hospital, The Catholic University of Korea, Seoul, Republic of Korea
- *Correspondence: Hye Sun Hyun,
| | - Ji Hyun Kim
- Department of Pediatrics, Seoul National University College of Medicine, Seoul, Republic of Korea
- Department of Pediatrics, Seoul National University Bundang Hospital, Seongnam, Republic of Korea
- Ji Hyun Kim,
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Suh SH, Oh TR, Choi HS, Kim CS, Bae EH, Ma SK, Oh KH, Yoo TH, Chae DW, Kim SW. Association between urinary chloride excretion and progression of coronary artery calcification in patients with nondialysis chronic kidney disease: results from the KNOW-CKD study. Kidney Res Clin Pract 2023; 42:251-261. [PMID: 36908202 PMCID: PMC10085721 DOI: 10.23876/j.krcp.22.072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2022] [Revised: 05/05/2022] [Accepted: 05/19/2022] [Indexed: 03/14/2023] Open
Abstract
BACKGROUND Urine chloride has recently been suggested as a biomarker of renal tubule function in patients with nondialysis chronic kidney disease (CKD), as low urinary chloride concentration is associated with an increased risk of CKD progression. We investigate the association between urinary chloride excretion and the progression of coronary artery calcification (CAC). METHODS A total of 1,065 patients with nondialysis CKD were divided into tertiles by spot urine chloride-to-creatinine ratios. The 1st, 2nd, and 3rd tertiles were defined as low, moderate, and high urinary chloride excretion, respectively. The study outcome was CAC progression, which was defined as an increase in coronary artery calcium score of more than 200 Agatston units during the 4-year follow-up period. RESULTS Compared to moderate urinary chloride excretion, high urinary chloride excretion was associated with decreased risk of CAC progression (adjusted odds ratio, 0.379; 95% confidence interval, 0.190-0.757), whereas low urinary chloride excretion was not associated with risk of CAC progression. Restricted cubic spine depicted an inverted J-shaped curve, with a significant reduction in the risk of CAC progression in subjects with high spot urine chloride-to-creatinine ratios. CONCLUSION High urinary chloride excretion is associated with decreased risk of CAC progression in patients with nondialysis CKD.
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Affiliation(s)
- Sang Heon Suh
- Department of Internal Medicine, Chonnam National University Hospital, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - Tae Ryom Oh
- Department of Internal Medicine, Chonnam National University Hospital, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - Hong Sang Choi
- Department of Internal Medicine, Chonnam National University Hospital, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - Chang Seong Kim
- Department of Internal Medicine, Chonnam National University Hospital, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - Eun Hui Bae
- Department of Internal Medicine, Chonnam National University Hospital, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - Seong Kwon Ma
- Department of Internal Medicine, Chonnam National University Hospital, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - Kook-Hwan Oh
- Department of Internal Medicine, Seoul National University Hospital, Seoul, Republic of Korea
| | - Tae-Hyun Yoo
- Department of Internal Medicine and Institute of Kidney Disease Research, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Dong-Wan Chae
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Republic of Korea
| | - Soo Wan Kim
- Department of Internal Medicine, Chonnam National University Hospital, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - on behalf of the Korean Cohort Study for Outcomes in Patients With Chronic Kidney Disease (KNOW-CKD) Investigators
- Department of Internal Medicine, Chonnam National University Hospital, Chonnam National University Medical School, Gwangju, Republic of Korea
- Department of Internal Medicine, Seoul National University Hospital, Seoul, Republic of Korea
- Department of Internal Medicine and Institute of Kidney Disease Research, Yonsei University College of Medicine, Seoul, Republic of Korea
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Republic of Korea
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Suh SH, Oh TR, Choi HS, Yang EM, Kim CS, Bae EH, Ma SK, Oh KH, Hyun YY, Sung S, Kim SW. Bone Mineral Density and All-Cause Mortality in Patients with Nondialysis Chronic Kidney Disease: Results from KNOW-CKD Study. J Clin Med 2023; 12:jcm12051850. [PMID: 36902637 PMCID: PMC10003778 DOI: 10.3390/jcm12051850] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Revised: 02/20/2023] [Accepted: 02/22/2023] [Indexed: 03/03/2023] Open
Abstract
Despite the clear association between low BMD and all-cause mortality in the general population, the association has not been validated in patients with nondialysis CKD. To investigate the association of low BMD with all-cause mortality in this population, a total of 2089 patients with nondialysis CKD at stages 1 to predialysis 5 were categorized into normal BMD (T-score ≥ -1.0), osteopenia (-2.5 < T-score < -1.0), and osteoporosis (T-score ≤ - 2.5) by the BMD at femoral neck. The study outcome was all-cause mortality. Kaplan-Meier curve depicted a significantly increased number of all-cause death events in the subjects with osteopenia or osteoporosis during the follow-up period compared with subjects with normal BMD. Cox regression models demonstrated that osteoporosis, but not osteopenia, was significantly associated with an increased risk of all-cause mortality (adjusted hazard ratio 2.963, 95% confidence interval 1.655 to 5.307). Smoothing curve fitting model visualized a clear inverse correlation between BMD T-score and the risk of all-cause mortality. Even after recategorizing the subjects by BMD T-scores at total hip or lumbar spine, the result was similar to the primary analyses. Subgroup analyses revealed that the association was not significantly modified by clinical contexts, such as age, gender, body mass index, estimated glomerular filtration rate, and albuminuria. In conclusion, low BMD is associated with an increased risk of all-cause mortality in patients with nondialysis CKD. This emphasizes that the routine measurement of BMD by DXA may confer an additional benefit beyond the prediction of fracture risk in this population.
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Affiliation(s)
- Sang Heon Suh
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju 61469, Republic of Korea
- Department of Internal Medicine, Chonnam National University Hospital, Gwangju 61469, Republic of Korea
| | - Tae Ryom Oh
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju 61469, Republic of Korea
- Department of Internal Medicine, Chonnam National University Hospital, Gwangju 61469, Republic of Korea
| | - Hong Sang Choi
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju 61469, Republic of Korea
- Department of Internal Medicine, Chonnam National University Hospital, Gwangju 61469, Republic of Korea
| | - Eun Mi Yang
- Department of Pediatrics, Chonnam National University Medical School, Gwangju 61469, Republic of Korea
- Department of Pediatrics, Chonnam National University Hospital, Gwangju 61469, Republic of Korea
| | - Chang Seong Kim
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju 61469, Republic of Korea
- Department of Internal Medicine, Chonnam National University Hospital, Gwangju 61469, Republic of Korea
| | - Eun Hui Bae
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju 61469, Republic of Korea
- Department of Internal Medicine, Chonnam National University Hospital, Gwangju 61469, Republic of Korea
| | - Seong Kwon Ma
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju 61469, Republic of Korea
- Department of Internal Medicine, Chonnam National University Hospital, Gwangju 61469, Republic of Korea
| | - Kook-Hwan Oh
- Department of Internal Medicine, Seoul National University Hospital, Seoul 03080, Republic of Korea
| | - Young Youl Hyun
- Department of Internal Medicine, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul 03181, Republic of Korea
| | - Suah Sung
- Department of Internal Medicine, Eulji Medical Center, Eulji University, Seoul 01830, Republic of Korea
| | - Soo Wan Kim
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju 61469, Republic of Korea
- Department of Internal Medicine, Chonnam National University Hospital, Gwangju 61469, Republic of Korea
- Correspondence: ; Tel.: +82-62-225-6271
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Lee J, Bae EH, Kim SW, Chung W, Kim YH, Oh YK, Kim YS, Oh KH, Park SK. The association between vitamin D deficiency and risk of renal event: Results from the Korean cohort study for outcomes in patients with chronic kidney disease (KNOW-CKD). Front Med (Lausanne) 2023; 10:1017459. [PMID: 36873872 PMCID: PMC9978501 DOI: 10.3389/fmed.2023.1017459] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Accepted: 01/31/2023] [Indexed: 02/18/2023] Open
Abstract
Backgrounds Some observational studies have suggested a possible association between vitamin D deficiency and CKD. However, in most studies, the causality between low levels of vitamin D and risk of renal events could not be explained. We investigated the relationship between vitamin D deficiency and risk of severe CKD stage and renal event in a large-scale prospective cohort study. Methods We used data from a prospective cohort of 2,144 patients with available information on serum 25-hydroxyvitamin D (25(OH)D) levels at baseline from KNOW-CKD, 2011-2015 were included. Vitamin D deficiency was defined as serum 25(OH)D levels < 15 ng/mL. We performed a cross-sectional analysis to elucidate the relationship between 25(OH)D and CKD stage using baseline CKD patient data. We further examined a cohort analysis to clarify the association between 25(OH)D and risk of renal event. Renal event was a composite of the first occurrence of a 50% decline in eGFR from the baseline value or the onset of CKD stage 5 (initiation of dialysis or kidney transplantation) across the follow-up period. We also investigated the associations of vitamin D deficiency with risk of renal event according to diabetes and overweight status. Results Vitamin D deficiency were significantly associated with an increased risk of severe CKD stage - 1.30-fold (95% CI: 1.10-1.69) for 25(OH)D. Deficiency of 25(OH)D with 1.64-fold (95% CI: 1.32-2.65) was related to renal event compared with the reference. Furthermore, vitamin D deficiency patients with presence of DM and overweight status also displayed higher risk than non-deficient patients for risk of renal event. Conclusion Vitamin D deficiency is associated with significantly increased risk of severe CKD stage and renal event.
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Affiliation(s)
- Juyeon Lee
- Department of Preventive Medicine, College of Medicine, Seoul National University, Seoul, Republic of Korea
- Department of Biomedical Science, College of Medicine, Seoul National University, Seoul, Republic of Korea
- Department Cancer Institution, Seoul National University, Seoul, Republic of Korea
| | - Eun Hui Bae
- Department of Internal Medicine, Chonnam National University Medical School and Chonnam National University Hospital, Gwangju, Republic of Korea
| | - Soo Wan Kim
- Department of Internal Medicine, Chonnam National University Medical School and Chonnam National University Hospital, Gwangju, Republic of Korea
| | - Wookyung Chung
- Department of Internal Medicine, Gachon University, Gil Hospital, Incheon, Republic of Korea
| | - Yeong Hoon Kim
- Department of Internal Medicine, Inje University, Busan Paik Hospital, Busan, Republic of Korea
| | - Yun Kyu Oh
- Department of Internal Medicine, Seoul Metropolitan Government-Seoul National University Boramae Medical Center, Seoul, Republic of Korea
| | - Yong-Soo Kim
- Department of Internal Medicine, College of Medicine, Catholic University of Korea, Seoul, Republic of Korea
| | - Kook-Hwan Oh
- Division of Nephrology, Department of Internal Medicine, Seoul National University Hospital, Seoul, Republic of Korea
| | - Sue K. Park
- Department of Preventive Medicine, College of Medicine, Seoul National University, Seoul, Republic of Korea
- Department Cancer Institution, Seoul National University, Seoul, Republic of Korea
- Interdisciplinary Program in Cancer Biology, College of Medicine, Seoul National University, Seoul, Republic of Korea
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Suh SH, Jung JH, Oh TR, Yang EM, Choi HS, Kim CS, Bae EH, Ma SK, Han KD, Kim SW. Rheumatoid arthritis and the risk of end-stage renal disease: A nationwide, population-based study. Front Med (Lausanne) 2023; 10:1116489. [PMID: 36817794 PMCID: PMC9932810 DOI: 10.3389/fmed.2023.1116489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Accepted: 01/18/2023] [Indexed: 02/05/2023] Open
Abstract
Introduction Despite the risk of incident chronic kidney disease among the patients with rheumatoid arthritis (RA), the association of RA and the risk of end-stage renal disease (ESRD) has not been clearly elucidated. We aimed to investigate the association of RA and the risk of ESRD. Materials and methods A total of 929,982 subjects with (n = 154,997) or without (n = 774,985) RA from the National Health Insurance Service (NHIS) database in Koreas (corresponding to the period between 2009 and 2017) were retrospectively analyzed. RA was defined by the International Classification of Diseases, 10th Revision, Clinical Modification (ICD-10-CM), codes plus any dispensing of disease-modifying anti-rheumatic drugs. The primary outcome was incident ESRD, identified by a combination of the ICD-10-CM codes and a special code assigned to patients receiving maintenance dialysis for ≥ 3 months or those with a transplant kidney. Results Compared to the subjects without RA, the subjects with RA resulted in an increased incidence of ESRD (incidence rates of 0.374 versus 0.810 cases per 1,000 person-years). Accordingly, compared to the subjects without RA, the risk of ESRD was significantly increased among the subjects with RA (adjusted hazard ratio 2.095, 95% confidence interval 1.902-2.308). Subgroup analyses revealed that the risk of ESRD imposed by RA is relatively higher in relatively young and healthy individuals. Conclusion Rheumatoid arthritis (RA) increase the risk of ESRD. As the risk of ESRD imposed by RA is relatively higher in relatively young and healthy individuals, kidney-protective treatment, such as biologic agents, should be preferentially considered among these patients with RA.
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Affiliation(s)
- Sang Heon Suh
- Department of Internal Medicine, Chonnam National University Medical School and Chonnam National University Hospital, Gwangju, Republic of Korea
| | - Jin Hyung Jung
- Department of Biostatistics, College of Medicine, Catholic University of Korea, Seoul, Republic of Korea
| | - Tae Ryom Oh
- Department of Internal Medicine, Chonnam National University Medical School and Chonnam National University Hospital, Gwangju, Republic of Korea
| | - Eun Mi Yang
- Department of Pediatrics, Chonnam National University Medical School, Chonnam National University Hospital, Gwangju, Republic of Korea
| | - Hong Sang Choi
- Department of Internal Medicine, Chonnam National University Medical School and Chonnam National University Hospital, Gwangju, Republic of Korea
| | - Chang Seong Kim
- Department of Internal Medicine, Chonnam National University Medical School and Chonnam National University Hospital, Gwangju, Republic of Korea
| | - Eun Hui Bae
- Department of Internal Medicine, Chonnam National University Medical School and Chonnam National University Hospital, Gwangju, Republic of Korea
| | - Seong Kwon Ma
- Department of Internal Medicine, Chonnam National University Medical School and Chonnam National University Hospital, Gwangju, Republic of Korea
| | - Kyung-Do Han
- Department of Statistics and Actuarial Science, Soongsil University, Seoul, Republic of Korea,*Correspondence: Kyung-Do Han,
| | - Soo Wan Kim
- Department of Internal Medicine, Chonnam National University Medical School and Chonnam National University Hospital, Gwangju, Republic of Korea,Soo Wan Kim,
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Park JS, Kim DH, Choi HI, Kim CS, Bae EH, Ma SK, Kim SW. 3-Carboxy-4-methyl-5-propyl-2-furanpropanoic acid (CMPF) induces cell death through ferroptosis and acts as a trigger of apoptosis in kidney cells. Cell Death Dis 2023; 14:78. [PMID: 36732325 PMCID: PMC9894909 DOI: 10.1038/s41419-023-05601-w] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Revised: 01/16/2023] [Accepted: 01/17/2023] [Indexed: 02/04/2023]
Abstract
Ferroptosis is a cell death mechanism characterized by intracellular iron accumulation and lipid peroxidation. Effects of uremic toxins on ferroptosis in the kidney are not well understood. We investigated whether protein-bound uremic toxins induce ferroptosis, resulting in cell death, using the bilateral ureteral obstruction (BUO) mouse model and kidney cells. In BUO mice, we observed elevated lipid peroxidation, increased iron concentration, and decreased glutathione peroxidase 4 (GPX4) expression. Levels of transferrin receptor 1 and system Xc-, which are involved in iron transport and storage, were also elevated, while those of ferritin heavy and light chains (FHC and FLC) were reduced. Treatment of HK-2 and NRK49F kidney cells with CMPF decreased GSH levels and the expression of GPX4, FHC, and FLC, and increased levels of ROS, lipid peroxidation, and intracellular iron concentration. CMPF-induced and erastin-induced decreases in GPX4 levels and increases in Bax and cytochrome C levels were counteracted by ferrostatin-1 pretreatment. However, GPX4 mRNA levels, protein abundance, or promoter activity were not restored by Z-VAD-FMK, a multi-caspase inhibitor. These results suggest that ferroptosis induced by CMPF treatment induces apoptosis, and inhibition of ferroptosis reduces apoptosis, suggesting that ferroptosis plays a role in triggering cell death by apoptosis.
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Affiliation(s)
- Jung Sun Park
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, 61469, Korea
| | - Dong-Hyun Kim
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, 61469, Korea
| | - Hoon-In Choi
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, 61469, Korea
| | - Chang Seong Kim
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, 61469, Korea
| | - Eun Hui Bae
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, 61469, Korea
| | - Seong Kwon Ma
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, 61469, Korea
| | - Soo Wan Kim
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, 61469, Korea.
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Kim DH, Park JS, Choi HI, Kim CS, Bae EH, Ma SK, Kim SW. The role of the farnesoid X receptor in kidney health and disease: a potential therapeutic target in kidney diseases. Exp Mol Med 2023; 55:304-312. [PMID: 36737665 PMCID: PMC9981614 DOI: 10.1038/s12276-023-00932-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Revised: 11/22/2022] [Accepted: 12/01/2022] [Indexed: 02/05/2023] Open
Abstract
The prevalence of kidney diseases has been increasing worldwide due to the aging population and has results in an increased socioeconomic burden as well as increased morbidity and mortality. A deep understanding of the mechanisms underlying the physiological regulation of the kidney and the pathogenesis of related diseases can help identify potential therapeutic targets. The farnesoid X receptor (FXR, NR1H4) is a primary nuclear bile acid receptor that transcriptionally regulates bile acid homeostasis as well as glucose and lipid metabolism in multiple tissues. The roles of FXR in tissues other than hepatic and intestinal tissues are poorly understood. In studies over the past decade, FXR has been demonstrated to have a protective effect against kidney diseases through its anti-inflammatory and antifibrotic effects; it also plays roles in glucose and lipid metabolism in the kidney. In this review, we discuss the physiological role of FXR in the kidney and its pathophysiological roles in various kidney diseases, including acute kidney injury and chronic kidney diseases, diabetic nephropathy, and kidney fibrosis. Therefore, the regulatory mechanisms involving nuclear receptors, such as FXR, in the physiology and pathophysiology of the kidney and the development of agonists and antagonists for modulating FXR expression and activation should be elucidated to identify therapeutic targets for the treatment of kidney diseases.
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Affiliation(s)
- Dong-Hyun Kim
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, 61469, Korea.
| | - Jung Sun Park
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, 61469, Korea
| | - Hoon-In Choi
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, 61469, Korea
| | - Chang Seong Kim
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, 61469, Korea
| | - Eun Hui Bae
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, 61469, Korea
| | - Seong Kwon Ma
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, 61469, Korea
| | - Soo Wan Kim
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, 61469, Korea.
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Oh MS, Choi SW, Jeong MH, Bae EH, Park J, Ryu SY, Han MA, Shin MH. Association between Decreased Estimated Glomerular Filtration Rates and Long-term Mortality in Korean Patients with Acute Myocardial Infarction. Chonnam Med J 2023; 59:87-97. [PMID: 36794247 PMCID: PMC9900226 DOI: 10.4068/cmj.2023.59.1.87] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Revised: 12/05/2022] [Accepted: 12/06/2022] [Indexed: 02/01/2023] Open
Abstract
A reduced estimated glomerular filtration rate (eGFR) is a predictor for mortality in patients with acute myocardial infarction (AMI). This study aimed to compare mortality according to the GFR and eGFR calculation methods during long-term clinical follow-ups. Using the Korean Acute Myocardial Infarction Registry-National Institutes of Health Data, 13,021 patients with AMI were included in this study. Patients were divided into the surviving (n=11,503, 88.3%) and deceased (n=1,518, 11.7%) groups. Clinical characteristics, cardiovascular risk factors, and 3-year mortality-related factors were analyzed. eGFR was calculated using the Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) and Modification of Diet in Renal Disease (MDRD) equations. The surviving group was younger than the deceased group (62.6±12.4 vs. 73.6±10.5 years, p<0.001), whereas the deceased group had higher hypertension and diabetes prevalences than the surviving group. A high Killip class was more frequently observed in the deceased group. eGFR was significantly lower in the deceased group (82.2±24.1 vs. 55.2±28.6 ml/min/1.73 m2, p<0.001). Multivariate analysis revealed that low eGFR was an independent risk factor for mortality during the 3-year follow-up. The CKD-EPI equation was more useful for predicting mortality than the MDRD equation (0.766; 95% confidence interval [CI], 0.753-0.779 vs. 0.738; 95% CI, 0.724-0.753; p=0.001). Decreased renal function was a significant predictor of mortality after 3 years in patients with AMI. The CKD-EPI equation was more useful for predicting mortality than the MDRD equation.
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Affiliation(s)
- Mi Sook Oh
- Department of Public Health, Graduate School of Chosun University, Gwangju, Korea.,Department of Cardiology, Chonnam National University Hospital and Medical School, Gwangju, Korea
| | - Seong Woo Choi
- Department of Public Health, Graduate School of Chosun University, Gwangju, Korea.,Department of Preventive Medicine, Chosun University, Gwangju, Korea
| | - Myung Ho Jeong
- Department of Cardiology, Chonnam National University Hospital and Medical School, Gwangju, Korea
| | - Eun Hui Bae
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Korea
| | - Jong Park
- Department of Public Health, Graduate School of Chosun University, Gwangju, Korea.,Department of Preventive Medicine, Chosun University, Gwangju, Korea
| | - So Yeon Ryu
- Department of Public Health, Graduate School of Chosun University, Gwangju, Korea.,Department of Preventive Medicine, Chosun University, Gwangju, Korea
| | - Mi Ah Han
- Department of Public Health, Graduate School of Chosun University, Gwangju, Korea.,Department of Preventive Medicine, Chosun University, Gwangju, Korea
| | - Min Ho Shin
- Department of Preventive Medicine, Chonnam National University, Gwangju, Korea
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Choi HS, Kim B, Han KD, Oh TR, Suh SH, Kim M, Kim CS, Bae EH, Ma SK, Kim SW. Weight change and risk of depression in patients with diabetic kidney disease: a nationwide population-based study. Kidney Res Clin Pract 2023; 42:86-97. [PMID: 36328992 PMCID: PMC9902731 DOI: 10.23876/j.krcp.21.294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Accepted: 05/10/2022] [Indexed: 11/04/2022] Open
Abstract
BACKGROUND Several studies have reported that depression is prevalent in patients with diabetes or chronic kidney disease. However, the relationship between weight changes and the risk of depression has not been elucidated in patients with diabetic kidney disease (DKD). METHODS From the Korean National Health Insurance Service database, we selected 67,866 patients with DKD and body weight data from two consecutive health examinations with a 2-year interval between 2009 and 2012. Weight change over 2 years was categorized into five groups: ≥-10%, <-10% to ≥-5%, <-5% to <5%, ≥5% to <10%, and ≥10%. The occurrence of depression was monitored via the codes of International Statistical Classification of Diseases, 10th revision through the end of 2018. RESULTS During the 5.24-year follow-up, 17,023 patients with DKD developed depression. Weight change and the risk of depression had a U-shaped relationship: patients with ≥-10% weight change (hazard ratio [HR], 1.12) and those with ≥10% weight change (HR, 1.11) showed higher HRs for depression than those with <-5% to <5% weight change, even after adjusting for several confounding factors. In the subgroup analyses, the risk of depression tended to increase as weight gain or weight loss increased in all subgroups. CONCLUSION Both weight loss and weight gain increased the risk of depression in patients with DKD.
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Affiliation(s)
- Hong Sang Choi
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - Bongseong Kim
- Department of Statistics and Actuarial Science, Soongsil University, Seoul, Republic of Korea
| | - Kyung-Do Han
- Department of Statistics and Actuarial Science, Soongsil University, Seoul, Republic of Korea
| | - Tae Ryom Oh
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - Sang Heon Suh
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - Minah Kim
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - Chang Seong Kim
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - Eun Hui Bae
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - Seong Kwon Ma
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - Soo Wan Kim
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Republic of Korea,Correspondence: Soo Wan Kim Department of Internal Medicine, Chonnam National University Medical School, 160 Baekseo-ro, Dong-gu, Gwangju 61469, Korea. E-mail:
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31
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Suh SH, Oh TR, Choi HS, Kim CS, Bae EH, Oh KH, Han SH, Ma SK, Kim SW. Serum triglycerides level is independently associated with renal outcomes in patients with non-dialysis chronic kidney disease: Results from KNOW-CKD study. Front Nutr 2022; 9:1037618. [PMID: 36505239 PMCID: PMC9729769 DOI: 10.3389/fnut.2022.1037618] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Accepted: 11/11/2022] [Indexed: 11/25/2022] Open
Abstract
To investigate whether high serum triglycerides (TG) level is associated with adverse renal outcomes in patients with non-dialysis chronic kidney disease (CKD), a total of 2,158 subjects from a prospective cohort study (Korean Cohort Study for Outcome in Patients With Chronic Kidney Disease) were divided into the quartile by serum TG level. The primary outcomes were composite renal events, which is defined as a composite of decline of kidney function (the first occurrence of > 50% decline of estimated glomerular filtration rate or doubling of serum creatinine from the baseline) or onset of end-stage renal disease (initiation of dialysis or kidney transplantation). During the median follow-up of 6.940 years, the cumulative incidence of composite renal event was significantly differed by serum TG level in Kaplan-Meier curve analysis (P < 0.001, by Log-rank test). Cox regression analysis demonstrated that, compared to that of the 1st quartile, the risk of composite renal event was significantly higher in the 4th quartile (adjusted hazard ratio 1.433, 95% confidence interval 1.046 to 1.964). The association between high serum TG level and adverse renal outcome remained consistent in the cause-specific hazard model. Subgroup analyses revealed that the association is modified by age, estimated glomerular filtration rate, and spot urine albumin-to-creatinine ratio. In conclusion, high serum TG level is independently associated with adverse renal outcomes in patients with non-dialysis CKD. Interventional studies are warranted to determine whether lowering serum TG levels may alter the natural course of CKD.
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Affiliation(s)
- Sang Heon Suh
- Department of Internal Medicine, Chonnam National University Medical School and Chonnam National University Hospital, Gwangju, South Korea
| | - Tae Ryom Oh
- Department of Internal Medicine, Chonnam National University Medical School and Chonnam National University Hospital, Gwangju, South Korea
| | - Hong Sang Choi
- Department of Internal Medicine, Chonnam National University Medical School and Chonnam National University Hospital, Gwangju, South Korea
| | - Chang Seong Kim
- Department of Internal Medicine, Chonnam National University Medical School and Chonnam National University Hospital, Gwangju, South Korea
| | - Eun Hui Bae
- Department of Internal Medicine, Chonnam National University Medical School and Chonnam National University Hospital, Gwangju, South Korea
| | - Kook-Hwan Oh
- Department of Internal Medicine, Seoul National University Hospital, Seoul, South Korea
| | - Seung Hyeok Han
- Department of Internal Medicine, College of Medicine, Institute of Kidney Disease Research, Yonsei University, Seoul, South Korea
| | - Seong Kwon Ma
- Department of Internal Medicine, Chonnam National University Medical School and Chonnam National University Hospital, Gwangju, South Korea,*Correspondence: Seong Kwon Ma
| | - Soo Wan Kim
- Department of Internal Medicine, Chonnam National University Medical School and Chonnam National University Hospital, Gwangju, South Korea,Soo Wan Kim
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Affiliation(s)
- Su Hyun Song
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Korea
| | - Young Jin Goo
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Korea
| | - Eun Hui Bae
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Korea
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Yang EM, Park JS, Joo SY, Bae EH, Ma SK, Kim SW. Stanniocalcin‑1 suppresses TGF‑β‑induced mitochondrial dysfunction and cellular fibrosis in human renal proximal tubular cells. Int J Mol Med 2022; 50:107. [PMID: 35730604 DOI: 10.3892/ijmm.2022.5163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Accepted: 04/29/2022] [Indexed: 12/30/2022] Open
Abstract
Stanniocalcin‑1 (STC1), a multifunctional glycoprotein with antioxidant and anti‑inflammatory properties, serves an important role in kidney protection. STC1 is one of the few hormones targeted to the mitochondria to regulate mitochondrial quality control by suppressing oxidative stress and mitochondrial damage. However, the mechanisms underlying the effect of STC1 remain unclear. The present study aimed to investigate the protective role of recombinant STC1 (rSTC1) in renal fibrosis and to identify the mechanisms underlying cellular fibrosis in HK2 human renal proximal tubular cells. Semi‑quantitative PCR, western blot analysis and confocal microscopy were used to detect the mRNA levels, protein levels and mitochondrial membrane potential (MMP). Mitochondrial superoxide production was evaluated using MitoSox staining. rSTC1 attenuated TGF‑β‑induced downregulation of AMP‑activated protein kinase and uncoupling protein 2 (UCP2). Treatment of HK2 cells with TGF‑β reduced the MMP and increased the production of reactive oxygen species (ROS). In addition, TGF‑β treatment upregulated fibrotic markers, such as α‑SMA and fibronectin, in HK2 cells. Treatment with rSTC1 and TGF‑β suppressed mitochondrial ROS production by recovering the MMP and reversed the upregulation of fibrotic markers in HK2 cells. The effects of rSTC1 were reversed when UCP2 expression was silenced. The present study revealed a novel role of STC1 in preventing TGF‑β induced cellular fibrosis in HK2 cells.
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Affiliation(s)
- Eun Mi Yang
- Department of Pediatrics, Chonnam National University Medical School, Gwangju 61469, Republic of Korea
| | - Jung Sun Park
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju 61469, Republic of Korea
| | - Soo Yeon Joo
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju 61469, Republic of Korea
| | - Eun Hui Bae
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju 61469, Republic of Korea
| | - Seong Kwon Ma
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju 61469, Republic of Korea
| | - Soo Wan Kim
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju 61469, Republic of Korea
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Bae EH, Lim SY, Kim B, Oh TR, Song SH, Suh SH, Choi HS, Yang EM, Kim CS, Ma SK, Han KD, Kim SW. Effects of Blood Pressure According to Age on End-Stage Renal Disease Development in Patients With Diabetes: A Nationwide Population-Based Cohort Study. Hypertension 2022; 79:1765-1776. [PMID: 35607989 PMCID: PMC9278717 DOI: 10.1161/hypertensionaha.121.18881] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
Abstract
Background: Recent hypertension guidelines have recommended lower blood pressure (BP) targets in high-risk patients. However, there are no specific guidelines based on age or systolic and diastolic blood pressure (SBP and DBP, respectively). We aimed to assess the effects of age-related BP on development of end-stage renal disease (ESRD) in patients with diabetes. Methods: A total of 2 563 870 patients with diabetes aged >20 years were selected from the Korean National Health Screening Program from 2009 to 2012 and followed up until the end of 2019. Participants were categorized into age and BP groups, and the hazard ratios for ESRD were calculated. Results: During a median follow-up of 7.15 years, the incidence rates of ESRD increased with increasing SBP and DBP. The hazard ratio for ESRD was the highest in patients younger than 40 years of age with DBP≥100 mm Hg. The effect of SBP and DBP on ESRD development was attenuated with age (interaction P was <0.0001 for age and SBP, and 0.0022 for age and DBP). The subgroup analysis for sex, antihypertension medication, and history of chronic kidney disease showed higher hazard ratios for ESRD among males, younger than 40 years, not taking antihypertension medications and chronic kidney disease compared to those among females, older than 40 years, antihypertension medication, and nonchronic kidney disease groups. Conclusions: Higher SBP and DBP increase the risk of developing ESRD in patients with diabetes, and in particular, younger individuals face greater risk. Therefore, intensive BP management is warranted in younger patients to prevent ESRD.
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Affiliation(s)
- Eun Hui Bae
- From the Department of Internal Medicine (E.H.B., T.R.O., S. Hyun Song, S. Heon Suh, H.S.C., C.S.K., S.K.M., S.W.K.), Chonnam National University Medical School, Gwangju, Korea
| | - Sang Yeob Lim
- Department of Internal Medicine, Korea University Ansan Hospital (S.Y.L.)
| | - Bongseong Kim
- Department of Statistics and Actuarial Science, Soongsil University, Seoul, Korea (B.K., K.-D.H.)
| | - Tae Ryom Oh
- From the Department of Internal Medicine (E.H.B., T.R.O., S. Hyun Song, S. Heon Suh, H.S.C., C.S.K., S.K.M., S.W.K.), Chonnam National University Medical School, Gwangju, Korea
| | - Su Hyun Song
- From the Department of Internal Medicine (E.H.B., T.R.O., S. Hyun Song, S. Heon Suh, H.S.C., C.S.K., S.K.M., S.W.K.), Chonnam National University Medical School, Gwangju, Korea
| | - Sang Heon Suh
- From the Department of Internal Medicine (E.H.B., T.R.O., S. Hyun Song, S. Heon Suh, H.S.C., C.S.K., S.K.M., S.W.K.), Chonnam National University Medical School, Gwangju, Korea
| | - Hong Sang Choi
- From the Department of Internal Medicine (E.H.B., T.R.O., S. Hyun Song, S. Heon Suh, H.S.C., C.S.K., S.K.M., S.W.K.), Chonnam National University Medical School, Gwangju, Korea
| | - Eun Mi Yang
- Department of Pediatrics (E.M.Y.), Chonnam National University Medical School, Gwangju, Korea
| | - Chang Seong Kim
- From the Department of Internal Medicine (E.H.B., T.R.O., S. Hyun Song, S. Heon Suh, H.S.C., C.S.K., S.K.M., S.W.K.), Chonnam National University Medical School, Gwangju, Korea
| | - Seong Kwon Ma
- From the Department of Internal Medicine (E.H.B., T.R.O., S. Hyun Song, S. Heon Suh, H.S.C., C.S.K., S.K.M., S.W.K.), Chonnam National University Medical School, Gwangju, Korea
| | - Kyung-Do Han
- Department of Statistics and Actuarial Science, Soongsil University, Seoul, Korea (B.K., K.-D.H.)
| | - Soo Wan Kim
- From the Department of Internal Medicine (E.H.B., T.R.O., S. Hyun Song, S. Heon Suh, H.S.C., C.S.K., S.K.M., S.W.K.), Chonnam National University Medical School, Gwangju, Korea
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Kim CS, Choi HS, Bae EH, Ma SK, Kim B, Han KD, Kim SW. Weight change and fracture risk in patients with diabetic kidney disease: A nationwide population-based study. Front Med (Lausanne) 2022; 9:912152. [PMID: 35966851 PMCID: PMC9366468 DOI: 10.3389/fmed.2022.912152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Accepted: 07/11/2022] [Indexed: 11/25/2022] Open
Abstract
Background The increased risk of fracture has been associated with weight loss in patients with diabetes or chronic kidney disease. However, the relationship between weight changes over time and fracture risk in patients with diabetic kidney disease is still unknown. Methods A total number of 78,922 patients with diabetic kidney disease, aged ≥ 40 years, were selected using the Korean National Health Insurance Service database, between 2009 and 2012. They were followed up until the end of 2018. Weight change was defined as the difference in body weight from the index year to 2 years later. Weight changes were then divided into five categories, ranging from weight loss of ≥10% to weight gain of ≥10%. Results Fractures were identified in 9,847 patients with diabetic kidney disease, over a median follow-up of 5.2 years. The risk of composite fracture of the vertebral, hip, or other sites increased as the weight change increased. Specifically, patients with ≥10% weight loss (hazard ratio [HR], 1.286; 95% confidence interval [CI], 1.184–1.398) and ≥10% weight gain (HR, 1.198; 95% CI, 1.080–1.330) showed a higher HR compared to those with ≤ 5% weight change after adjusting for several confounding factors. Higher HR of vertebral and hip fractures was also seen with increased weight loss or gain. In particular, patients with ≥10% weight loss showed the highest HR for hip fractures (HR, 1.738; 95% CI, 1.489–2.028). Conclusions Both weight loss and weight gain increase the risk of fracture in patients with diabetic kidney disease. Therefore, patients with diabetic kidney disease who experience weight changes should be made aware of the risk of fracture.
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Affiliation(s)
- Chang Seong Kim
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, South Korea
- Department of Internal Medicine, Chonnam National University Hospital, Gwangju, South Korea
| | - Hong Sang Choi
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, South Korea
- Department of Internal Medicine, Chonnam National University Hospital, Gwangju, South Korea
| | - Eun Hui Bae
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, South Korea
- Department of Internal Medicine, Chonnam National University Hospital, Gwangju, South Korea
| | - Seong Kwon Ma
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, South Korea
- Department of Internal Medicine, Chonnam National University Hospital, Gwangju, South Korea
| | - Bongseong Kim
- Department of Statistics and Actuarial Science, Soongsil University, Seoul, South Korea
| | - Kyung-Do Han
- Department of Statistics and Actuarial Science, Soongsil University, Seoul, South Korea
| | - Soo Wan Kim
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, South Korea
- Department of Internal Medicine, Chonnam National University Hospital, Gwangju, South Korea
- *Correspondence: Soo Wan Kim
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Kim DH, Choi HI, Park JS, Kim CS, Bae EH, Ma SK, Kim SW. Farnesoid X receptor protects against cisplatin-induced acute kidney injury by regulating the transcription of ferroptosis-related genes. Redox Biol 2022; 54:102382. [PMID: 35767918 PMCID: PMC9241134 DOI: 10.1016/j.redox.2022.102382] [Citation(s) in RCA: 35] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Accepted: 06/20/2022] [Indexed: 12/12/2022] Open
Abstract
The side effects of cisplatin, a widely used chemotherapeutic agent, include nephrotoxicity. Previous studies have reported that cisplatin induces ferroptosis and lipid peroxide accumulation. Ferroptosis, a type of regulated cell death, is characterized by iron-dependent lipid peroxidation. Although previous studies have examined the regulation of ferroptosis in acute kidney injury (AKI), the regulatory mechanism of ferroptosis has not been elucidated. Here, the ability of activated farnesoid X receptor (FXR) to attenuate cisplatin-induced AKI through the regulation of ferroptosis was examined. FXR deficiency exhibited more ferroptosis responses, such as increase in lipid peroxidation, iron content and heme oxygenase 1 protein, and a decrease in glutathione/glutathione disulfide ratio and glutathione peroxidase 4 levels in HK2 cells and mice. Increased blood urea nitrogen, serum creatinine, and ferroptotic responses in the cisplatin-induced AKI mouse model were mitigated upon treatment with the FXR agonist GW4064 but were exacerbated in FXR knockout mice. RNA sequencing analysis revealed that ferroptosis-associated genes were novel targets of FXR. FXR agonist upregulated the expression of lipid and glutathione metabolism-related genes and downregulated cell death-related genes. Additionally, chromatin immunoprecipitation assays, using mice renal tissues, revealed that agonist-activated FXR could bind to its known target genes (Slc51a, Slc51b, Osgin1, and Mafg) and ferroptosis-related genes (Aifm2, Ggt6, and Gsta4). Furthermore, activated FXR-dependent MAFG, a transcriptional repressor, could bind to Hmox1, Nqo1, and Tf in the renal tissues of FXR agonist-treated mice. These findings indicate that activated FXR regulates the transcription of ferroptosis-related genes and protects against cisplatin-induced AKI.
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Affiliation(s)
- Dong-Hyun Kim
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, 61469, South Korea
| | - Hoon-In Choi
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, 61469, South Korea
| | - Jung Sun Park
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, 61469, South Korea
| | - Chang Seong Kim
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, 61469, South Korea
| | - Eun Hui Bae
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, 61469, South Korea
| | - Seong Kwon Ma
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, 61469, South Korea
| | - Soo Wan Kim
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, 61469, South Korea.
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Sang Choi H, Ryon Oh T, Heon Suh S, Seong Kim C, Hui Bae E, Kwon MA S, Wan Kim S. MO489: Weight Change and Risk of Depression in Patients With Diabetic Kidney Disease: A Nationwide Population-Based Study. Nephrol Dial Transplant 2022. [DOI: 10.1093/ndt/gfac071.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
BACKGROUND AND AIMS
Several studies have reported that depression has a high prevalence in patients with diabetes or chronic kidney disease. However, the relationship between weight changes and the risk of depression has not been elucidated in patients with diabetic kidney disease (DKD).
METHOD
From the Korean National Health Insurance Service database, we selected 67 866 patients with DKD with body weight data from two consecutive health examinations with a 2-year interval between 2009 and 2012. The weight change >2 years was categorized into five groups: ≥10% weight loss, 5%–10% weight loss, <5% weight change, 5%–10% weight gain and ≥10% weight gain. The occurrence of depression was monitored through the end of 2018 by the ICD-10 codes.
RESULTS
During the 5.24-year follow-up, 17 023 patients with DKD developed depression. The weight change and the risk of depression showed a U-shaped relationship: patients with ≥10% weight loss [hazard ratio (HR): 1.116] and those with ≥10% weight gain (HR: 1.114) showed higher HRs than those with ≤5% weight change, even after adjusting for several confounding factors. In subgroup analyses, the risk of depression tended to increase as weight gain or weight loss increased in all subgroups.
CONCLUSION
Both weight loss and weight gain increased the risk of depression in patients with DKD
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Affiliation(s)
- Hong Sang Choi
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Republic of South Korea
| | - Tae Ryon Oh
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Republic of South Korea
| | - Sang Heon Suh
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Republic of South Korea
| | - Chang Seong Kim
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Republic of South Korea
| | - Eun Hui Bae
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Republic of South Korea
| | - Seong Kwon MA
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Republic of South Korea
| | - Soo Wan Kim
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Republic of South Korea
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Bae EH, Lim SY, Yang EM, Oh TR, Choi HS, Kim CS, Ma SK, Kim B, Han KD, Kim SW. Low waist circumference prior to percutaneous coronary intervention predict the risk for end-stage renal disease: a nationwide Korean population based-cohort study. Korean J Intern Med 2022; 37:639-652. [PMID: 35143719 PMCID: PMC9082428 DOI: 10.3904/kjim.2021.313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Revised: 06/22/2021] [Accepted: 08/12/2021] [Indexed: 12/01/2022] Open
Abstract
BACKGROUND/AIMS The obesity paradox has been known in end-stage renal disease (ESRD). However, the effect of body mass index (BMI) or waist circumference (WC) prior to percutaneous coronary intervention (PCI) on the development of ESRD is not clear. METHODS Using nationally representative data from the Korean National Health Insurance System, we enrolled 140,164 subjects without ESRD at enrolment who underwent PCI between 2010 and 2015, and were followed-up until 2017. Patients were stratified into five levels based on their baseline BMI and six levels based on their WC with 5-cm increments. BMI and WC were measured at least 2 years prior to PCI. The primary outcome was the development of ESRD. RESULTS During a median follow-up of 5.4 years, 2,082 (1.49%) participants developed ESRD. The underweight group (hazard ratio [HR], 1.331; 95% confidence interval [CI], 0.955 to 1.856) and low WC (< 80/< 75) (HR, 1.589; 95% CI, 1.379 to 1.831) showed the highest ESRD risk and the BMI 25 to 30 group showed the lowest ESRD risk (HR, 0.604; 95% CI, 0542 to 0.673) in all participants after adjusting for all covariates. In the subgroup analysis for diabetes mellitus (DM) duration, WC < 85/80 cm (men/women) increased ESRD risk in only the DM group (DM < 5 years and DM ≥ 5 years) compared to the reference group (85-90/80-85 of WC), but not the normal or impaired fasting glucose group. CONCLUSION Low WC prior to PCI showed an increased ESRD risk in patients with DM undergoing PCI as compared to those without DM.
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Affiliation(s)
- Eun Hui Bae
- Department of Internal Medicine, Chonnam National University Hospital, Gwangju,
Korea
| | - Sang Yup Lim
- Department of Internal Medicine, Korea University Ansan Hospital, Ansan,
Korea
| | - Eun Mi Yang
- Department of Pediatrics, Chonnam National University Hospital, Gwangju,
Korea
| | - Tae Ryom Oh
- Department of Internal Medicine, Chonnam National University Hospital, Gwangju,
Korea
| | - Hong Sang Choi
- Department of Internal Medicine, Chonnam National University Hospital, Gwangju,
Korea
| | - Chang Seong Kim
- Department of Internal Medicine, Chonnam National University Hospital, Gwangju,
Korea
| | - Seong Kwon Ma
- Department of Internal Medicine, Chonnam National University Hospital, Gwangju,
Korea
| | - Bongseong Kim
- Department of Statistics and Actuarial Science, Soongsil University, Seoul,
Korea
| | - Kyung-Do Han
- Department of Statistics and Actuarial Science, Soongsil University, Seoul,
Korea
| | - Soo Wan Kim
- Department of Internal Medicine, Chonnam National University Hospital, Gwangju,
Korea
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Choi HS, Mathew AP, Uthaman S, Vasukutty A, Kim IJ, Suh SH, Kim CS, Ma SK, Graham SA, Kim SW, Park IK, Bae EH. Inflammation-sensing catalase-mimicking nanozymes alleviate acute kidney injury via reversing local oxidative stress. J Nanobiotechnology 2022; 20:205. [PMID: 35477452 PMCID: PMC9044883 DOI: 10.1186/s12951-022-01410-z] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Accepted: 04/03/2022] [Indexed: 11/10/2022] Open
Abstract
Background The reactive oxygen species (ROS) and inflammation, a critical contributor to tissue damage, is well-known to be associated with various disease. The kidney is susceptible to hypoxia and vulnerable to ROS. Thus, the vicious cycle between oxidative stress and renal hypoxia critically contributes to the progression of chronic kidney disease and finally, end-stage renal disease. Thus, delivering therapeutic agents to the ROS-rich inflammation site and releasing the therapeutic agents is a feasible solution. Results We developed a longer-circulating, inflammation-sensing, ROS-scavenging versatile nanoplatform by stably loading catalase-mimicking 1-dodecanethiol stabilized Mn3O4 (dMn3O4) nanoparticles inside ROS-sensitive nanomicelles (PTC), resulting in an ROS-sensitive nanozyme (PTC-M). Hydrophobic dMn3O4 nanoparticles were loaded inside PTC micelles to prevent premature release during circulation and act as a therapeutic agent by ROS-responsive release of loaded dMn3O4 once it reached the inflammation site. Conclusions The findings of our study demonstrated the successful attenuation of inflammation and apoptosis in the IRI mice kidneys, suggesting that PTC-M nanozyme could possess promising potential in AKI therapy. This study paves the way for high-performance ROS depletion in treating various inflammation-related diseases. Graphical Abstract ![]()
Supplementary Information The online version contains supplementary material available at 10.1186/s12951-022-01410-z.
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Affiliation(s)
- Hong Sang Choi
- Departments of Internal Medicine, Chonnam National University Medical School, 160, Baekseo‑ro, Dong‑gu, Gwangju, 61469, Republic of Korea.,Departments of Internal Medicine, Chonnam National University Hospital, Gwangju, Republic of Korea
| | - Ansuja Pulickal Mathew
- Department of Biomedical Sciences, BK21 PLUS Center for Creative Biomedical Scientists, Chonnam National University Medical School, 160, Baekseo‑ro, Dong‑gu, Gwangju, 61469, Republic of Korea.,BioMedical Sciences Graduate Program (BMSGP), Chonnam National University, Hwasun-gun, Jeollanam-do, Republic of Korea
| | - Saji Uthaman
- Department of Biomedical Sciences, BK21 PLUS Center for Creative Biomedical Scientists, Chonnam National University Medical School, 160, Baekseo‑ro, Dong‑gu, Gwangju, 61469, Republic of Korea.,BioMedical Sciences Graduate Program (BMSGP), Chonnam National University, Hwasun-gun, Jeollanam-do, Republic of Korea
| | - Arathy Vasukutty
- Department of Biomedical Sciences, BK21 PLUS Center for Creative Biomedical Scientists, Chonnam National University Medical School, 160, Baekseo‑ro, Dong‑gu, Gwangju, 61469, Republic of Korea.,BioMedical Sciences Graduate Program (BMSGP), Chonnam National University, Hwasun-gun, Jeollanam-do, Republic of Korea
| | - In Jin Kim
- Departments of Internal Medicine, Chonnam National University Hospital, Gwangju, Republic of Korea
| | - Sang Heon Suh
- Departments of Internal Medicine, Chonnam National University Medical School, 160, Baekseo‑ro, Dong‑gu, Gwangju, 61469, Republic of Korea.,Departments of Internal Medicine, Chonnam National University Hospital, Gwangju, Republic of Korea
| | - Chang Seong Kim
- Departments of Internal Medicine, Chonnam National University Medical School, 160, Baekseo‑ro, Dong‑gu, Gwangju, 61469, Republic of Korea.,Departments of Internal Medicine, Chonnam National University Hospital, Gwangju, Republic of Korea
| | - Seong Kwon Ma
- Departments of Internal Medicine, Chonnam National University Medical School, 160, Baekseo‑ro, Dong‑gu, Gwangju, 61469, Republic of Korea.,Departments of Internal Medicine, Chonnam National University Hospital, Gwangju, Republic of Korea
| | - Sontyana Adonijah Graham
- Department of Biomedical Sciences, BK21 PLUS Center for Creative Biomedical Scientists, Chonnam National University Medical School, 160, Baekseo‑ro, Dong‑gu, Gwangju, 61469, Republic of Korea.,BioMedical Sciences Graduate Program (BMSGP), Chonnam National University, Hwasun-gun, Jeollanam-do, Republic of Korea
| | - Soo Wan Kim
- Departments of Internal Medicine, Chonnam National University Medical School, 160, Baekseo‑ro, Dong‑gu, Gwangju, 61469, Republic of Korea.,Departments of Internal Medicine, Chonnam National University Hospital, Gwangju, Republic of Korea
| | - In-Kyu Park
- Department of Biomedical Sciences, BK21 PLUS Center for Creative Biomedical Scientists, Chonnam National University Medical School, 160, Baekseo‑ro, Dong‑gu, Gwangju, 61469, Republic of Korea. .,BioMedical Sciences Graduate Program (BMSGP), Chonnam National University, Hwasun-gun, Jeollanam-do, Republic of Korea.
| | - Eun Hui Bae
- Departments of Internal Medicine, Chonnam National University Medical School, 160, Baekseo‑ro, Dong‑gu, Gwangju, 61469, Republic of Korea. .,Departments of Internal Medicine, Chonnam National University Hospital, Gwangju, Republic of Korea.
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Suh SH, Oh TR, Choi HS, Kim CS, Bae EH, Oh KH, Lee J, Jung JY, Lee KB, Ma SK, Kim SW. Association Between Left Ventricular Geometry and Renal Outcomes in Patients With Chronic Kidney Disease: Findings From Korean Cohort Study for Outcomes in Patients With Chronic Kidney Disease Study. Front Cardiovasc Med 2022; 9:848692. [PMID: 35509274 PMCID: PMC9058055 DOI: 10.3389/fcvm.2022.848692] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Accepted: 03/30/2022] [Indexed: 01/19/2023] Open
Abstract
Background The impact of left ventricular (LV) geometry on the renal outcomes in patients with chronic kidney disease (CKD) has not been established yet. We aimed to investigate the association of LV geometry with renal outcomes and all-cause mortality in patients with pre-dialysis CKD. Methods A total of 2,144 subjects from the Korean Cohort Study for Outcome in Patients With Chronic Kidney Disease (KNOW-CKD) were categorized by LV geometry, which was defined by LV mass index and relative wall thickness [normal geometry, concentric remodeling, eccentric hypertrophy (eLVH), and concentric hypertrophy (cLVH)]. Study outcomes were composite renal events [decline of kidney function (the first occurrence of > 50% decline of eGFR or doubling of serum creatinine from the baseline) and onset of ESRD (initiation of dialysis or kidney transplantation) during follow-up periods)] and all-cause mortality. Results Cox regression analysis revealed that eLVH [adjusted hazard ratio (HR) 1.498, 95% confidence interval (CI) 1.197–1.873] and cLVH (adjusted HR 1.289, 95% CI 1.011–1.643) were associated with increased risk of composite renal events, whereas concentric remodeling (adjusted HR 1.881, 95% CI 1.135–3.118) and cLVH (adjusted HR 2.216, 95% CI 1.341–3.664) were associated with increased risk of all-cause mortality. Sensitivity analyses confirmed that concentric remodeling (adjusted HR 1.993, 95% CI 1.197–3.368) and eLVH (adjusted HR 1.588, 95% CI 1.261–2.001) are independently associated with all-cause mortality and composite renal events, respectively. Conclusion In conclusion, we report that LV geometry is significantly associated with adverse renal outcomes and all-cause mortality in patients with pre-dialysis CKD. Echocardiographic determination of LV geometry may help the early identification for the patients with high risk of CKD progression.
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Affiliation(s)
- Sang Heon Suh
- Department of Internal Medicine, Chonnam National University Medical School and Chonnam National University Hospital, Gwangju, South Korea
| | - Tae Ryom Oh
- Department of Internal Medicine, Chonnam National University Medical School and Chonnam National University Hospital, Gwangju, South Korea
| | - Hong Sang Choi
- Department of Internal Medicine, Chonnam National University Medical School and Chonnam National University Hospital, Gwangju, South Korea
| | - Chang Seong Kim
- Department of Internal Medicine, Chonnam National University Medical School and Chonnam National University Hospital, Gwangju, South Korea
| | - Eun Hui Bae
- Department of Internal Medicine, Chonnam National University Medical School and Chonnam National University Hospital, Gwangju, South Korea
| | - Kook-Hwan Oh
- Department of Internal Medicine, Seoul National University Hospital, Seoul, South Korea
| | - Joongyub Lee
- Department of Prevention and Management, School of Medicine, Inha University, Incheon, South Korea
| | - Ji Yong Jung
- Division of Nephrology, Department of Internal Medicine, Gachon University of Gil Medical Center, Incheon, South Korea
| | - Kyu-Beck Lee
- Department of Internal Medicine, School of Medicine, Kangbuk Samsung Hospital, Sungkyunkwan University Seoul, Seoul, South Korea
| | - Seong Kwon Ma
- Department of Internal Medicine, Chonnam National University Medical School and Chonnam National University Hospital, Gwangju, South Korea
| | - Soo Wan Kim
- Department of Internal Medicine, Chonnam National University Medical School and Chonnam National University Hospital, Gwangju, South Korea
- *Correspondence: Soo Wan Kim,
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Sun W, Choi HS, Kim CS, Bae EH, Ma SK, Kim SW. Maslinic Acid Attenuates Ischemia/Reperfusion-Induced Acute Kidney Injury by Suppressing Inflammation and Apoptosis Through Inhibiting NF-κB and MAPK Signaling Pathway. Front Pharmacol 2022; 13:807452. [PMID: 35496304 PMCID: PMC9039024 DOI: 10.3389/fphar.2022.807452] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Accepted: 03/03/2022] [Indexed: 12/14/2022] Open
Abstract
Inflammation and apoptosis are the major contributors to the mechanisms of acute kidney injury (AKI) due to renal ischemia-reperfusion injury (IRI). Maslinic acid (MA), a pentacyclic triterpene acid mostly found in dietary plants, the current study was to demonstrate the renoprotective effect of MA on IRI-induced AKI, and to investigate the role of inflammation and apoptosis-related signaling pathways as a molecular mechanism. C57BL/6J mice were subjected to IRI for 72 h, and MA was daily administered by intraperitoneal injection during this period. In parallel, rat renal proximal tubule cells (NRK52E) were prophylactically treated with MA and then exposed to hydrogen peroxide (H2O2). MA treatment significantly inhibited the mRNA expression of interleukin (IL-1β), tumor necrosis factor-α (TGF-α), monocyte chemoattractant protein-1 (MCP-1), and intercellular adhesion molecule-1(ICAM-1). Also, MA reduced the expression of Bax/Bcl2 ratio and cleaved caspase-3. In NRK52 cells, MA inhibited the IκBα degradation, blocked NF-κB/p65 phosphorylation, and nuclear translocation. The phosphorylation of ERK, JNK, and p38 was attenuated by MA in IRI-induced kidney injury and H2O2-stimulated NRK52 cells. The expression levels of IL-1β, MCP-1, and ICAM-1 were upregulated in H2O2-stimulated NRK52E cells, which was attenuated by NF-κB inhibitor. H2O2 treatment increased the Bax/Bcl2 ratio and cleaved caspase-3 in NRK52E cells, which was counteracted by MAPK inhibitors. Together, our data demonstrate that MA suppresses IR-induced AKI injury through NF-κB and MAPK signaling pathways and that MA is a promising agent in the treatment of kidney diseases.
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Suh SH, Oh TR, Choi HS, Kim CS, Bae EH, Oh KH, Choi KH, Oh YK, Ma SK, Kim SW. Association of Left Ventricular Diastolic Dysfunction With Cardiovascular Outcomes in Patients With Pre-dialysis Chronic Kidney Disease: Findings From KNOW-CKD Study. Front Cardiovasc Med 2022; 9:844312. [PMID: 35402554 PMCID: PMC8990123 DOI: 10.3389/fcvm.2022.844312] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Accepted: 03/01/2022] [Indexed: 01/08/2023] Open
Abstract
BackgroundThe impact of left ventricular diastolic dysfunction (LVDD) on cardiovascular (CV) outcomes in patients with pre-dialysis chronic kidney disease (CKD) has been rarely unveiled. We here investigated the association of LVDD with CV outcomes and all-cause mortality in patients with pre-dialysis CKD.MethodsA total of 2,135 patients with pre-dialysis CKD from the Korean Cohort Study for Outcomes in Patients With Chronic Kidney Disease (KNOW-CKD) cohort were dichotomized by the absence or presence of LVDD, which was defined as the ratio of the early transmitral blood flow velocity to early diastolic velocity of the mitral annulus (E/e′) > 14.ResultsCox regression analysis revealed that LVDD was significantly associated with increased risk of composite CV events [adjusted hazard ratio (HR) 2.194, 95% confidence interval (CI) 1.486–3.240] and all-cause mortality (adjusted HR 1.830, 95% CI 1.168–2.869). Restricted cubic splines visualized stringent linear correlations of E/e′ with both composite CV events and all-cause mortality. In the sensitivity analysis only including the subjects with left ventricular ejection fraction ≥ 50%, LVDD was still significantly associated with adverse CV outcomes (adjusted HR 1.984, 95% CI 1.325–3.000) and all-cause mortality (adjusted HR 1.727, 95% CI 1.083–2.754), suggesting that the impact of LVDD on the outcomes in patients with CKD is independent of LV systolic function. Subgroup analyses revealed that the associations were not modified by various clinical contexts, such as age, sex, burden of comorbid conditions, body mass index, estimated glomerular filtration rate, and albuminuria.ConclusionLVDD is independently associated with adverse CV outcomes and all-cause mortality in patients with pre-dialysis CKD.
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Affiliation(s)
- Sang Heon Suh
- Department of Internal Medicine, Chonnam National University Medical School, Chonnam National University Hospital, Gwangju, South Korea
| | - Tae Ryom Oh
- Department of Internal Medicine, Chonnam National University Medical School, Chonnam National University Hospital, Gwangju, South Korea
| | - Hong Sang Choi
- Department of Internal Medicine, Chonnam National University Medical School, Chonnam National University Hospital, Gwangju, South Korea
| | - Chang Seong Kim
- Department of Internal Medicine, Chonnam National University Medical School, Chonnam National University Hospital, Gwangju, South Korea
| | - Eun Hui Bae
- Department of Internal Medicine, Chonnam National University Medical School, Chonnam National University Hospital, Gwangju, South Korea
| | - Kook-Hwan Oh
- Department of Internal Medicine, Seoul National University Hospital, Seoul, South Korea
| | - Kyu Hun Choi
- Department of Internal Medicine, College of Medicine, Institute of Kidney Disease Research, Yonsei University, Seoul, South Korea
| | - Yun Kyu Oh
- Department of Internal Medicine, Seoul National University, Seoul, South Korea
| | - Seong Kwon Ma
- Department of Internal Medicine, Chonnam National University Medical School, Chonnam National University Hospital, Gwangju, South Korea
- *Correspondence: Seong Kwon Ma
| | - Soo Wan Kim
- Department of Internal Medicine, Chonnam National University Medical School, Chonnam National University Hospital, Gwangju, South Korea
- Soo Wan Kim
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Suh SH, Bae EH. Simple renal cysts: no longer simple? Korean J Intern Med 2022; 37:283-284. [PMID: 35272442 PMCID: PMC8925956 DOI: 10.3904/kjim.2022.043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Accepted: 01/29/2022] [Indexed: 11/27/2022] Open
Affiliation(s)
- Sang Heon Suh
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Korea
| | - Eun Hui Bae
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Korea
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Suh SH, Oh TR, Choi HS, Kim CS, Bae EH, Oh KH, Lee J, Oh YK, Jung JY, Ma SK, Kim SW. Abdominal Aortic Calcification and Cardiovascular Outcomes in Chronic Kidney Disease: Findings from KNOW-CKD Study. J Clin Med 2022; 11:jcm11051157. [PMID: 35268249 PMCID: PMC8911161 DOI: 10.3390/jcm11051157] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Revised: 02/11/2022] [Accepted: 02/21/2022] [Indexed: 02/01/2023] Open
Abstract
To investigate the association between abdominal aortic calcification score (AACS) assessed by plain radiograph of the lateral abdomen and the risk of cardiovascular (CV) events in patients with pre-dialysis chronic kidney disease (CKD), a total of 2090 pre-dialysis CKD patients from the Korean Cohort Study for Outcome in Patients with Chronic Kidney Disease (KNOW-CKD) were categorized by AACS into 0, 1–2, 3–4, 5–6, and ≥7. The primary outcome of the study was the composite CV events, defined as a composite of non-fatal CV events and all-cause death. The risk of composite CV events was significantly higher in the subjects with AACS ≥ 7 (adjusted hazard ratio (HR) 1.888, 95% confidence interval (CI) 1.219 to 2.923), compared to that of the subjects with AACS 0. The risks of fatal and non-fatal CV events (adjusted HR 1.052, 95% CI 1.030 to 1.073) and all-cause death (adjusted HR 1.949, 95% CI 1.073 to 3.539) were also significantly higher in the subjects with AACS ≥ 7. In conclusion, AACS assessed by plain radiograph is independently associated with adverse CV outcomes in patients with pre-dialysis CKD. A simple radiographic examination of the lateral abdomen may help CV risk stratification in this population.
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Affiliation(s)
- Sang Heon Suh
- Department of Internal Medicine, Chonnam National University Medical School and Chonnam National University Hospital, Gwangju 61469, Korea; (S.H.S.); (T.R.O.); (H.S.C.); (C.S.K.); (E.H.B.)
| | - Tae Ryom Oh
- Department of Internal Medicine, Chonnam National University Medical School and Chonnam National University Hospital, Gwangju 61469, Korea; (S.H.S.); (T.R.O.); (H.S.C.); (C.S.K.); (E.H.B.)
| | - Hong Sang Choi
- Department of Internal Medicine, Chonnam National University Medical School and Chonnam National University Hospital, Gwangju 61469, Korea; (S.H.S.); (T.R.O.); (H.S.C.); (C.S.K.); (E.H.B.)
| | - Chang Seong Kim
- Department of Internal Medicine, Chonnam National University Medical School and Chonnam National University Hospital, Gwangju 61469, Korea; (S.H.S.); (T.R.O.); (H.S.C.); (C.S.K.); (E.H.B.)
| | - Eun Hui Bae
- Department of Internal Medicine, Chonnam National University Medical School and Chonnam National University Hospital, Gwangju 61469, Korea; (S.H.S.); (T.R.O.); (H.S.C.); (C.S.K.); (E.H.B.)
| | - Kook-Hwan Oh
- Department of Internal Medicine, Seoul National University Hospital, Seoul 03080, Korea;
| | - Joongyub Lee
- Department of Prevention and Management, School of Medicine, Inha University, Incheon 22212, Korea;
| | - Yun Kyu Oh
- Department of Internal Medicine, Seoul National University, Seoul 08826, Korea;
| | - Ji Yong Jung
- Division of Nephrology, Department of Internal Medicine, Gachon University of Gil Medical Center, Incheon 21565, Korea;
| | - Seong Kwon Ma
- Department of Internal Medicine, Chonnam National University Medical School and Chonnam National University Hospital, Gwangju 61469, Korea; (S.H.S.); (T.R.O.); (H.S.C.); (C.S.K.); (E.H.B.)
- Correspondence: (S.K.M.); (S.W.K.); Tel.: +82-62-220-6579 (S.K.M.); +82-62-225-6271 (S.W.K.)
| | - Soo Wan Kim
- Department of Internal Medicine, Chonnam National University Medical School and Chonnam National University Hospital, Gwangju 61469, Korea; (S.H.S.); (T.R.O.); (H.S.C.); (C.S.K.); (E.H.B.)
- Correspondence: (S.K.M.); (S.W.K.); Tel.: +82-62-220-6579 (S.K.M.); +82-62-225-6271 (S.W.K.)
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Suh SH, Oh TR, Choi HS, Kim CS, Bae EH, Oh KH, Lee KB, Han SH, Sung S, Ma SK, Kim SW. Association of Body Weight Variability With Progression of Coronary Artery Calcification in Patients With Predialysis Chronic Kidney Disease. Front Cardiovasc Med 2022; 8:794957. [PMID: 35155608 PMCID: PMC8826058 DOI: 10.3389/fcvm.2021.794957] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Accepted: 12/23/2021] [Indexed: 11/13/2022] Open
Abstract
Background We investigated whether high body weight variability (BWV) is associated with a higher prevalence of coronary artery calcification (CAC) or more rapid progression of CAC in patients with predialysis chronic kidney disease (CKD). Methods A total of 1,162 subjects from a nationwide prospective cohort of predialysis CKD were analyzed. The subjects were divided into the tertile (T1, T2, and T3) by BWV. CAC was assessed at the baseline and a 4-year follow-up by CT scan. Rapid progression of coronary artery calcification was defined as an increase in coronary artery calcium score (CACS) more than 200 Agatston units during a 4-year follow-up. Results One-way ANOVA revealed that CACS change during the follow-up period is significantly higher in the subjects with high BWV, although CACS at the baseline and 4-year follow-up was not different among the tertile groups by BWV. Logistic regression analysis revealed that compared to low BWV (T1), both moderate (T2, adjusted odds ratio (OR) 2.118, 95% CI 1.075–4.175) and high (T3, adjusted OR 2.602, 95% CI 1.304–5.191) BWV was associated with significantly increased risk of rapid progression of CAC. Importantly, the association between BWV and progression of CAC remained robust even among the subjects without significant BW gain or loss during follow-up periods (T2, adjusted OR 2.007, 95% CI 1.011–3.984; T3, adjusted OR 2.054, 95% CI 1.003–4.207). Conclusion High BWV is independently associated with rapid progression of CAC in patients with predialysis CKD.
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Affiliation(s)
- Sang Heon Suh
- Department of Internal Medicine, Chonnam National University Medical School and Chonnam National University Hospital, Gwangju, South Korea
| | - Tae Ryom Oh
- Department of Internal Medicine, Chonnam National University Medical School and Chonnam National University Hospital, Gwangju, South Korea
| | - Hong Sang Choi
- Department of Internal Medicine, Chonnam National University Medical School and Chonnam National University Hospital, Gwangju, South Korea
| | - Chang Seong Kim
- Department of Internal Medicine, Chonnam National University Medical School and Chonnam National University Hospital, Gwangju, South Korea
| | - Eun Hui Bae
- Department of Internal Medicine, Chonnam National University Medical School and Chonnam National University Hospital, Gwangju, South Korea
| | - Kook-Hwan Oh
- Department of Internal Medicine, Seoul National University Hospital, Seoul, South Korea
| | - Kyu-Beck Lee
- Department of Internal Medicine, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - Seung Hyeok Han
- Department of Internal Medicine, College of Medicine, Institute of Kidney Disease Research, Yonsei University, Seoul, South Korea
| | - Suah Sung
- Department of Internal Medicine, Eulji Medical Center, Eulji University, Seoul, South Korea
| | - Seong Kwon Ma
- Department of Internal Medicine, Chonnam National University Medical School and Chonnam National University Hospital, Gwangju, South Korea
| | - Soo Wan Kim
- Department of Internal Medicine, Chonnam National University Medical School and Chonnam National University Hospital, Gwangju, South Korea
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Oh TR, Choi HS, Suh SH, Kim CS, Bae EH, Sung S, Han SH, Oh KH, Ma SK, Kim SW. The Association between Health-Enhancing Physical Activity and Quality of Life in Patients with Chronic Kidney Disease: Propensity Score Matching Analysis. IJERPH 2022; 19:ijerph19031318. [PMID: 35162341 PMCID: PMC8835055 DOI: 10.3390/ijerph19031318] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Revised: 01/19/2022] [Accepted: 01/23/2022] [Indexed: 12/02/2022]
Abstract
We investigate the association between health-enhancing physical activity and the quality of life in patients with non-dialysis chronic kidney disease. We performed data analysis on 1618 of 2238 patients from 2011 to 2016, obtained from the KoreaN Cohort Study for Outcome in Patients with Chronic Kidney Disease (KNOW-CKD). Health-related quality of life was measured using the Korean version 1.3 of Kidney Disease Quality of Life short-form questionnaire. Health-enhancing physical activity was defined as 150 min of moderate-intensity or 75 min of vigorous-intensity aerobic physical activity throughout the week. Propensity score matching analysis and linear regression was performed to estimate the effect of health-enhancing physical activity on health-related quality of life. The estimate of average treatment effects was 2.60 in the kidney component summary score, 4.45 in the physical component summary score, and 4.24 in the mental component summary score. In all component summary scores and most of their subscales, health-enhancing physical activity showed a significant association with health-related quality of life. Subgroup and sensitivity analyses also showed robust results. This study suggests that health-enhancing physical activity elevated quality of life in patients with non-dialysis chronic kidney disease. The results can contribute to encourage physical activity in patients with chronic kidney disease.
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Affiliation(s)
- Tae Ryom Oh
- Department of Internal Medicine, Chonnam National University Hospital, 42 Jebongro, Gwangju 61469, Korea; (T.R.O.); (H.S.C.); (S.H.S.); (C.S.K.); (E.H.B.)
- Department of Internal Medicine, Chonnam National University Medical School, 42 Jebongro, Gwangju 61469, Korea
| | - Hong Sang Choi
- Department of Internal Medicine, Chonnam National University Hospital, 42 Jebongro, Gwangju 61469, Korea; (T.R.O.); (H.S.C.); (S.H.S.); (C.S.K.); (E.H.B.)
- Department of Internal Medicine, Chonnam National University Medical School, 42 Jebongro, Gwangju 61469, Korea
| | - Sang Heon Suh
- Department of Internal Medicine, Chonnam National University Hospital, 42 Jebongro, Gwangju 61469, Korea; (T.R.O.); (H.S.C.); (S.H.S.); (C.S.K.); (E.H.B.)
- Department of Internal Medicine, Chonnam National University Medical School, 42 Jebongro, Gwangju 61469, Korea
| | - Chang Seong Kim
- Department of Internal Medicine, Chonnam National University Hospital, 42 Jebongro, Gwangju 61469, Korea; (T.R.O.); (H.S.C.); (S.H.S.); (C.S.K.); (E.H.B.)
- Department of Internal Medicine, Chonnam National University Medical School, 42 Jebongro, Gwangju 61469, Korea
| | - Eun Hui Bae
- Department of Internal Medicine, Chonnam National University Hospital, 42 Jebongro, Gwangju 61469, Korea; (T.R.O.); (H.S.C.); (S.H.S.); (C.S.K.); (E.H.B.)
- Department of Internal Medicine, Chonnam National University Medical School, 42 Jebongro, Gwangju 61469, Korea
| | - Suah Sung
- Department of Internal Medicine, Eulji Medical Center, Eulji University, Seoul 01830, Korea;
| | - Seung Hyeok Han
- Department of Internal Medicine, College of Medicine, Institute of Kidney Disease Research, Yonsei University, Seoul 03722, Korea;
| | - Kook Hwan Oh
- Department of Internal Medicine, Seoul National University, Seoul 03080, Korea;
| | - Seong Kwon Ma
- Department of Internal Medicine, Chonnam National University Hospital, 42 Jebongro, Gwangju 61469, Korea; (T.R.O.); (H.S.C.); (S.H.S.); (C.S.K.); (E.H.B.)
- Department of Internal Medicine, Chonnam National University Medical School, 42 Jebongro, Gwangju 61469, Korea
- Correspondence: (S.K.M.); (S.W.K.); Tel.: +82-62-220-6579 (S.K.M.); +82-62-220-6271 (S.W.K.); Fax: +82-62-225-8578 (S.K.M. & S.W.K.)
| | - Soo Wan Kim
- Department of Internal Medicine, Chonnam National University Hospital, 42 Jebongro, Gwangju 61469, Korea; (T.R.O.); (H.S.C.); (S.H.S.); (C.S.K.); (E.H.B.)
- Department of Internal Medicine, Chonnam National University Medical School, 42 Jebongro, Gwangju 61469, Korea
- Correspondence: (S.K.M.); (S.W.K.); Tel.: +82-62-220-6579 (S.K.M.); +82-62-220-6271 (S.W.K.); Fax: +82-62-225-8578 (S.K.M. & S.W.K.)
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Suh SH, Oh TR, Choi HS, Kim CS, Lee J, Oh YK, Jung JY, Lee KB, Oh KH, Ma SK, Bae EH, Kim SW. Association of High Serum Adiponectin Level With Adverse Cardiovascular Outcomes and Progression of Coronary Artery Calcification in Patients With Pre-dialysis Chronic Kidney Disease. Front Cardiovasc Med 2022; 8:789488. [PMID: 35097010 PMCID: PMC8792836 DOI: 10.3389/fcvm.2021.789488] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Accepted: 12/14/2021] [Indexed: 12/20/2022] Open
Abstract
Background: Serum adiponectin level predicts cardiovascular (CV) outcomes and progression of coronary artery calcification (CAC) in the general population, although the association has not been validated in patients with chronic kidney disease (CKD). In this study, we investigated the association of high serum adiponectin level with the risk of adverse CV outcomes and progression of CAC in patients with pre-dialysis CKD. Methods: A total of 1,127 patients with pre-dialysis CKD from a nationwide prospective cohort of patients with pre-dialysis CKD in Korea were divided into the tertile by serum adiponectin level at the baseline. CV outcome of interest was fatal and non-fatal CV events and all-cause mortality. Progression of CAC was defined as coronary artery calcium score (CACS) change more than 200 during a 4-year follow-up. Results: Cox regression analysis revealed that high serum adiponectin is associated with increased risk of fatal and non-fatal CV events (adjusted hazard ratio 2.799, 95% CI 1.348–5.811). In contrast, high serum adiponectin level was not significantly associated with all-cause mortality (adjusted hazard ratio 0.655, 95% CI 0.203–2.113). Binary logistic regression analysis revealed that high serum adiponectin level is also associated with increased risk of progression of CAC (adjusted odds ratio [OR] 2.078, 95% CI 1.014–4.260). Subgroup analyses demonstrated that the association of high serum adiponectin with increased risk of fatal and non-fatal CV events is not modified by age, gender, history of diabetes, estimated glomerular filtration rate (eGFR), or spot urine albumin-to-creatinine ratio (ACR). Conclusions: High serum adiponectin level is associated with adverse CV outcomes and progression of CAC in patients with pre-dialysis CKD.
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Affiliation(s)
- Sang Heon Suh
- Department of Internal Medicine, Chonnam National University Medical School and Chonnam National University Hospital, Gwangju, South Korea
| | - Tae Ryom Oh
- Department of Internal Medicine, Chonnam National University Medical School and Chonnam National University Hospital, Gwangju, South Korea
| | - Hong Sang Choi
- Department of Internal Medicine, Chonnam National University Medical School and Chonnam National University Hospital, Gwangju, South Korea
| | - Chang Seong Kim
- Department of Internal Medicine, Chonnam National University Medical School and Chonnam National University Hospital, Gwangju, South Korea
| | - Joongyub Lee
- Department of Prevention and Management, School of Medicine, Inha University, Incheon, South Korea
| | - Yun Kyu Oh
- Department of Internal Medicine, Seoul National University, Seoul, South Korea
| | - Ji Yong Jung
- Division of Nephrology, Department of Internal Medicine, Gachon University of Gil Medical Center, Incheon, South Korea
| | - Kyu-Beck Lee
- Department of Internal Medicine, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - Kook-Hwan Oh
- Department of Internal Medicine, Seoul National University, Seoul, South Korea
| | - Seong Kwon Ma
- Department of Internal Medicine, Chonnam National University Medical School and Chonnam National University Hospital, Gwangju, South Korea
| | - Eun Hui Bae
- Department of Internal Medicine, Chonnam National University Medical School and Chonnam National University Hospital, Gwangju, South Korea
- *Correspondence: Eun Hui Bae
| | - Soo Wan Kim
- Department of Internal Medicine, Chonnam National University Medical School and Chonnam National University Hospital, Gwangju, South Korea
- Soo Wan Kim
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Shin DW, Cho JY, Bae EH, Ma SK, Kim SW, Kim CS. Complete Atrioventricular Block After Kidney Transplantation in a Patient With Fabry Disease Receiving Enzyme Replacement Therapy: A Case Report. Transplant Proc 2022; 54:107-111. [PMID: 34974891 DOI: 10.1016/j.transproceed.2021.11.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Revised: 11/02/2021] [Accepted: 11/17/2021] [Indexed: 11/24/2022]
Abstract
Fabry disease (FD) is a rare X-linked lysosomal storage disorder that results from the deficient activity of the lysosomal enzyme α-galactosidase A (α-Gal A) enzyme. Kidney transplantation is an option for treating end-stage renal disease in patients with FD. However, only a few cases of kidney transplantation have been reported involving patients with FD and end-stage renal disease and cardiomyopathy after enzyme replacement therapy. A 53-year-old man who underwent peritoneal dialysis was referred to our department because his brother was diagnosed with FD. The diagnosis of FD was also confirmed in our patient on account of the reduced leukocyte α-Gal A enzyme activity and mutation in the α-galactosidase A gene (p.Arg301Gln). Though our patient had end-stage renal disease, he received enzyme replacement therapy with 1 mg/kg agalsidase-β every 2 weeks (Fabrazyme; Genzyme Co, Mass, USA) owing to markedly diffuse cardiac hypertrophy. Six years later, he underwent successful deceased-donor kidney transplantation. The post-transplantation course was uneventful, 4 months after transplantation. However, though he showed T-cell-mediated rejection on kidney biopsy, lamellar lysosomal inclusions were not present in vascular endothelial cells. After several months, a permanent pacemaker was inserted owing to a complete atrioventricular block; the patient died of sepsis and candidemia 1 year later. Deceased-donor kidney transplantation was successfully performed in an FD patient with sustained enzyme replacement therapy. However, owing to high cardiac morbidity and infection risks even after enzyme replacement therapy, close monitoring of these risks is essential for increasing patient survival after kidney transplantation.
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Affiliation(s)
- Dong Woo Shin
- Department of Internal Medicine, Chonnam National University Hospital, Gwangju, Korea
| | - Jae Yeong Cho
- Department of Internal Medicine, Chonnam National University Hospital, Gwangju, Korea; Department of Cardiovascular Medicine, Chonnam National University Medical School/Hospital, Gwangju, Korea
| | - Eun Hui Bae
- Department of Internal Medicine, Chonnam National University Hospital, Gwangju, Korea; Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Korea
| | - Seong Kwon Ma
- Department of Internal Medicine, Chonnam National University Hospital, Gwangju, Korea; Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Korea
| | - Soo Wan Kim
- Department of Internal Medicine, Chonnam National University Hospital, Gwangju, Korea; Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Korea
| | - Chang Seong Kim
- Department of Internal Medicine, Chonnam National University Hospital, Gwangju, Korea; Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Korea.
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Kim CS, Kim UJ, Lee Y, Lee U, Choi O, Kim SH, Lee K, Chung YS, Choi HS, Bae EH, Ma SK, Kim SE, Kang SJ, Jung SI, Kim SW, Park KH. Nosocomial Outbreak of COVID-19 from a Kidney Transplant Patient: Necessity of a Longer Isolation Period in Immunocompromised Patients. Infect Chemother 2022; 55:42-49. [PMID: 36450291 PMCID: PMC10079446 DOI: 10.3947/ic.2022.0124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Accepted: 10/15/2022] [Indexed: 11/27/2022] Open
Abstract
BACKGROUND Determination of the release from isolation for coronavirus disease 2019 (COVID-19) in immunocompromised patients who need additional hospitalization for treatment of non-COVID-19 related disease is important to prevent nosocomial transmission. However, there is insufficient evidence for an extended isolation period. MATERIALS AND METHODS In September 2021, when the Delta variant was dominant, a nosocomial outbreak of COVID-19 occurred in the nephrology ward of a tertiary hospital in Gwangju, Korea. We conducted epidemiological investigations and whole-genome sequencing (WGS) of this virus. RESULTS A man who underwent kidney transplantation was admitted to our hospital for the treatment of acute kidney injury. He was diagnosed with asymptomatic COVID-19 infection during a pre-admission screening test on September 1, 2021 and underwent isolation. After 10 days of isolation in the COVID-19-designated ward, he was transferred to the general nephrology ward. He underwent steroid pulse therapy (September 17 to September 23, >60 mg/day prednisolone) due to acute T-cell rejection. On September 28, 2021, the first patient with COVID-19 was identified in the nephrology ward, and a rapid-response team was activated to identify additional patients with COVID-19 and prevent the spread of COVID-19. Epidemiological investigations revealed that 12 patients, two caregivers, and three healthcare workers from the nephrology ward were diagnosed with COVID-19. The WGS of specimens from 14 nosocomial outbreak samples and released an index patient exhibited the same Delta variant originating from the B.1.617.2 lineage. This hospital-acquired COVID-19 outbreak in the nephrology ward resulted in two (11.7%) deaths in patients who underwent kidney transplantation. CONCLUSION We demonstrated that an immunocompromised patient can cause a nosocomial outbreak due to the prolonged shedding of infectious viruses. Prolonged isolation in patients under active immunosuppressive therapy may be necessary to prevent transmission, especially in the hospital setting.
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Affiliation(s)
- Chang Seong Kim
- Department of Nephrology, Chonnam National University Hospital, Gwangju, Korea
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Korea
| | - Uh Jin Kim
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Korea
- Department of Infectious Diseases, Chonnam National University Hospital, Gwangju, Korea
| | - Yoonjung Lee
- Department of Infectious Diseases, Chonnam National University Hospital, Gwangju, Korea
| | - Unhee Lee
- Department of Infection Control Unit, Chonnam National University Hospital, Gwangju, Korea
| | - Okja Choi
- Department of Infection Control Unit, Chonnam National University Hospital, Gwangju, Korea
| | - Sun-Hee Kim
- Division of Emerging Infectious Disease, Health and Environmental Research Institute of Gwangju City, Gwangju, Korea
| | - Kwangho Lee
- Division of Emerging Infectious Disease, Department of Infectious Disease Research, Health and Environment Research Institute of Gwangju, Gwangju, Korea
| | - Yoon-Seok Chung
- Division of Infectious Disease Diagnosis Control, Honam Regional Center for Disease Control and Prevention, Korea Diseases Control and Prevention Agency, Gwangju, Korea
| | - Hong Sang Choi
- Department of Nephrology, Chonnam National University Hospital, Gwangju, Korea
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Korea
| | - Eun Hui Bae
- Department of Nephrology, Chonnam National University Hospital, Gwangju, Korea
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Korea
| | - Seong Kwon Ma
- Department of Nephrology, Chonnam National University Hospital, Gwangju, Korea
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Korea
| | - Seong Eun Kim
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Korea
- Department of Infectious Diseases, Chonnam National University Hospital, Gwangju, Korea
| | - Seung-Ji Kang
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Korea
- Department of Infectious Diseases, Chonnam National University Hospital, Gwangju, Korea
| | - Sook-In Jung
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Korea
- Department of Infectious Diseases, Chonnam National University Hospital, Gwangju, Korea
| | - Soo Wan Kim
- Department of Nephrology, Chonnam National University Hospital, Gwangju, Korea
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Korea
| | - Kyung-Hwa Park
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Korea
- Department of Infectious Diseases, Chonnam National University Hospital, Gwangju, Korea
- Department of Infection Control Unit, Chonnam National University Hospital, Gwangju, Korea
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Oh TR, Choi HS, Oh SW, Oh J, Lee DW, Kim CS, Ma SK, Kim SW, Bae EH. Association between the progression of immunoglobulin A nephropathy and a controlled status of hypertension in the first year after diagnosis. Korean J Intern Med 2022; 37:146-153. [PMID: 32872745 PMCID: PMC8747919 DOI: 10.3904/kjim.2020.205] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Accepted: 07/09/2020] [Indexed: 11/27/2022] Open
Abstract
BACKGROUND/AIMS Hypertension is considered a risk factor in immunoglobulin A nephropathy (IgAN). However, after IgAN diagnosis, the relationship between early blood pressure control and renal prognosis remains unclear. This study aimed to analyze the association between the prognosis of IgAN patients and a controlled status of hypertension within the first year of IgAN diagnosis. METHODS We retrospectively analyzed 2,945 patients diagnosed with IgAN by renal biopsy. The patients were divided into 'normal,' 'new-onset,' 'well-controlled,' and 'poorly-controlled' groups using blood pressure data from two consecutive measurements performed within a year. The Kaplan-Meier survival analysis and Cox proportional-hazards regression model were used to survey the independent association between recovery from hypertension and the risk of IgAN progression. The primary endpoint was IgAN progression defined as the initiation of dialysis or kidney transplantation. RESULTS Before IgAN diagnosis, 1,239 patients (42.1%) had been diagnosed with hypertension. In the fully adjusted Cox proportional-hazards models, the risk of IgAN progression increased by approximately 1.7-fold for the prevalence of hypertension. In the subgroup analyses, the 'well-controlled' group showed a statistically significant risk of IgAN progression (hazard ratio [HR], 3.19; 95% confidence interval [CI], 1.103 to 9.245; p = 0.032). Moreover, the 'new-onset' and 'poorly-controlled' groups had an increased risk of IgAN progression compared to the 'normal' group (HR, 2.58; 95% CI, 1.016 to 6.545; p = 0.046 and HR, 3.85;95% CI, 1.541 to 9.603; p = 0.004, respectively). CONCLUSION Although hypertension was well-controlled in the first year after IgAN diagnosis, it remained a risk factor for IgAN progression.
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Affiliation(s)
- Tae Ryom Oh
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju,
Korea
| | - Hong Sang Choi
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju,
Korea
| | - Se Won Oh
- Department of Internal Medicine, Korea University Anam Hospital, Seoul,
Korea
| | - Jieun Oh
- Department of Internal Medicine, Hallym University Kangdong Sacred Heart Hospital, Seoul,
Korea
| | - Dong Won Lee
- Department of Internal Medicine, Pusan National University School of Medicine, Yangsan,
Korea
| | - Chang Seong Kim
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju,
Korea
| | - Seong Kwon Ma
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju,
Korea
| | - Soo Wan Kim
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju,
Korea
| | - Eun Hui Bae
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju,
Korea
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