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Plonski NM, Pan Y, Chen C, Dong Q, Zhang X, Song N, Shelton K, Easton J, Mulder H, Zhang J, Neale G, Walker E, Wang H, Webster R, Brinkman T, Krull KR, Armstrong GT, Ness KK, Hudson MM, Li Q, Huang IC, Wang Z. Health-related quality of life and DNA methylation-based aging biomarkers among survivors of childhood cancer. J Natl Cancer Inst 2024; 116:1116-1125. [PMID: 38445706 PMCID: PMC11223852 DOI: 10.1093/jnci/djae046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Revised: 12/13/2023] [Accepted: 02/22/2024] [Indexed: 03/07/2024] Open
Abstract
BACKGROUND Childhood cancer survivors are at high risk for morbidity and mortality and poor patient-reported outcomes, typically health-related quality of life (HRQOL). However, associations between DNA methylation-based aging biomarkers and HRQOL have not been evaluated. METHODS DNA methylation was generated with Infinium EPIC BeadChip on blood-derived DNA (median for age at blood draw = 34.5 years, range = 18.5-66.6 years), and HRQOL was assessed with age at survey (mean = 32.3 years, range = 18.4-64.5 years) from 2206 survivors in the St Jude Lifetime Cohort. DNA methylation-based aging biomarkers, including epigenetic age using multiple clocks (eg, GrimAge) and others (eg, DNAmB2M: beta-2-microglobulin; DNAmADM: adrenomedullin), were derived from the DNAm Age Calculator (https://dnamage.genetics.ucla.edu). HRQOL was assessed using the Medical Outcomes Study 36-Item Short-Form Health Survey to capture 8 domains and physical and mental component summaries. General linear models evaluated associations between HRQOL and epigenetic age acceleration (EAA; eg, EAA_GrimAge) or other age-adjusted DNA methylation-based biomarkers (eg, ageadj_DNAmB2M) after adjusting for age at blood draw, sex, cancer treatments, and DNA methylation-based surrogate for smoking pack-years. All P values were 2-sided. RESULTS Worse HRQOL was associated with greater EAA_GrimAge (physical component summaries: β = -0.18 years, 95% confidence interval [CI] = -0.251 to -0.11 years; P = 1.85 × 10-5; and 4 individual HRQOL domains), followed by ageadj_DNAmB2M (physical component summaries: β = -0.08 years, 95% CI = -0.124 to -0.037 years; P = .003; and 3 individual HRQOL domains) and ageadj_DNAmADM (physical component summaries: β = -0.082 years, 95% CI = -0.125 to -0.039 years; P = .002; and 2 HRQOL domains). EAA_Hannum (Hannum clock) was not associated with any HRQOL. CONCLUSIONS Overall and domain-specific measures of HRQOL are associated with DNA methylation measures of biological aging. Future longitudinal studies should test biological aging as a potential mechanism underlying the association between poor HRQOL and increased risk of clinically assessed adverse health outcomes.
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Affiliation(s)
- Noel-Marie Plonski
- Department of Epidemiology and Cancer Control, St Jude Children’s Research Hospital, Memphis, TN, USA
| | - Yue Pan
- Department of Biostatistics, St Jude Children’s Research Hospital, Memphis, TN, USA
| | - Cheng Chen
- Department of Epidemiology and Cancer Control, St Jude Children’s Research Hospital, Memphis, TN, USA
- State Key Laboratory of Oncogenes and Related Genes, Center for Single-Cell Omics, School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Qian Dong
- Department of Epidemiology and Cancer Control, St Jude Children’s Research Hospital, Memphis, TN, USA
| | - Xijun Zhang
- Department of Epidemiology and Cancer Control, St Jude Children’s Research Hospital, Memphis, TN, USA
| | - Nan Song
- College of Pharmacy, Chungbuk National University, Cheongju, Korea
| | - Kyla Shelton
- Department of Epidemiology and Cancer Control, St Jude Children’s Research Hospital, Memphis, TN, USA
| | - John Easton
- Department of Computational Biology, St Jude Children’s Research Hospital, Memphis, TN, USA
| | - Heather Mulder
- Department of Computational Biology, St Jude Children’s Research Hospital, Memphis, TN, USA
| | - Jinghui Zhang
- Department of Computational Biology, St Jude Children’s Research Hospital, Memphis, TN, USA
| | - Geoffrey Neale
- Hartwell Center, St Jude Children’s Research Hospital, Memphis, TN, USA
| | - Emily Walker
- Hartwell Center, St Jude Children’s Research Hospital, Memphis, TN, USA
| | - Hui Wang
- State Key Laboratory of Oncogenes and Related Genes, Center for Single-Cell Omics, School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Rachel Webster
- Department of Psychology, St Jude Children’s Research Hospital, Memphis, TN, USA
| | - Tara Brinkman
- Department of Psychology, St Jude Children’s Research Hospital, Memphis, TN, USA
| | - Kevin R Krull
- Department of Psychology, St Jude Children’s Research Hospital, Memphis, TN, USA
| | - Gregory T Armstrong
- Department of Epidemiology and Cancer Control, St Jude Children’s Research Hospital, Memphis, TN, USA
| | - Kirsten K Ness
- Department of Epidemiology and Cancer Control, St Jude Children’s Research Hospital, Memphis, TN, USA
| | - Melissa M Hudson
- Department of Epidemiology and Cancer Control, St Jude Children’s Research Hospital, Memphis, TN, USA
- Department of Oncology, St Jude Children’s Research Hospital, Memphis, TN, USA
| | - Qian Li
- Department of Biostatistics, St Jude Children’s Research Hospital, Memphis, TN, USA
| | - I-Chan Huang
- Department of Epidemiology and Cancer Control, St Jude Children’s Research Hospital, Memphis, TN, USA
| | - Zhaoming Wang
- Department of Epidemiology and Cancer Control, St Jude Children’s Research Hospital, Memphis, TN, USA
- Department of Computational Biology, St Jude Children’s Research Hospital, Memphis, TN, USA
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Jiang Q, Guo Y, Yang T, Li S, Hou Y, Lin J, Xiao Y, Ou R, Wei Q, Shang H. Cystatin C is associated with poor survival in amyotrophic lateral sclerosis patients. Front Neurosci 2024; 17:1309568. [PMID: 38249592 PMCID: PMC10796561 DOI: 10.3389/fnins.2023.1309568] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2023] [Accepted: 12/14/2023] [Indexed: 01/23/2024] Open
Abstract
Background Cystatin C (CysC) levels in amyotrophic lateral sclerosis (ALS) have been found changes, however, the associations between serum CysC levels and the progression and survival of ALS remain largely unknown. Methods A total of 1,086 ALS patients and 1,026 sex-age matched healthy controls (HCs) were enrolled in this study. Serum CysC, other renal function, and metabolic parameters were measured. Correlation analysis and binary logistic regression were used to explore the factors related to serum CysC. Kaplan-Meier curve and Cox regression model were used for survival analysis. Results CysC levels were significantly higher in ALS patients compared to HCs (0.94 vs. 0.85 mg/L, p < 0.001). Compared with ALS patients with lower CysC levels, those with higher CysC levels had an older age of onset, significantly lower ALSFRS-R scores (40.1 vs. 41.3, p < 0.001), a faster disease progression rate (0.75 vs. 0.67, p = 0.011), and lower frontal lobe function scores (15.8 vs. 16.1, p = 0.020). In the correlation analysis, CysC levels were significantly negatively correlated with ALSFRS-R scores (r = -0.16, p < 0.001). Additionally, ALS patients with higher CysC levels had significantly shorter survival time (40.0 vs. 51.8, p < 0.001) compared to patients with lower CysC levels. Higher CysC levels were associated with a higher risk of death in Cox analysis (HR: 1.204, 95% CI: 1.012-1.433). However, when treatment was included in the model, the result was no longer significant. Conclusion CysC levels in ALS patients were higher compared to HCs. Higher CysC levels were associated with greater disease severity, faster progression rate and shorter survival, needing early intervention.
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Affiliation(s)
- Qirui Jiang
- Department of Neurology, Laboratory of Neurodegenerative Disorders, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Yuan Guo
- Outpatient Department, West China School of Nursing, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Tianmi Yang
- Department of Neurology, Laboratory of Neurodegenerative Disorders, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Shirong Li
- Department of Neurology, Laboratory of Neurodegenerative Disorders, West China Hospital, Sichuan University, Chengdu, Sichuan, China
- Department of Neurology, Guizhou Provincial People’s Hospital, Guiyang, Guizhou, China
| | - Yanbing Hou
- Department of Neurology, Laboratory of Neurodegenerative Disorders, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Junyu Lin
- Department of Neurology, Laboratory of Neurodegenerative Disorders, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Yi Xiao
- Department of Neurology, Laboratory of Neurodegenerative Disorders, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Ruwei Ou
- Department of Neurology, Laboratory of Neurodegenerative Disorders, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Qianqian Wei
- Department of Neurology, Laboratory of Neurodegenerative Disorders, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Huifang Shang
- Department of Neurology, Laboratory of Neurodegenerative Disorders, West China Hospital, Sichuan University, Chengdu, Sichuan, China
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Zhang C, Xu Q, Xu C, Yang K, Xia T, Hasi W, Hao M, Kuang H. Sex Differences in the Association Between AST/ALT and Incidence of Type 2 Diabetes in Japanese Patients with Nonalcoholic Fatty Liver Disease: A Retrospective Cohort Study. Endocr Res 2024; 49:1-11. [PMID: 37752709 DOI: 10.1080/07435800.2023.2262034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Accepted: 09/16/2023] [Indexed: 09/28/2023]
Abstract
OBJECTIVES/INTRODUCTION The purpose of the current study was to investigate the association between Aspartate Transaminase (AST)/Alanine transaminase(ALT) and type 2 diabetes (T2DM) in nonalcoholic fatty liver disease (NAFLD) patients and to determine whether there were sex differences. METHODS In the retrospective study, we collected data on NAFLD patients (1, 896 men and 465 women) at Murakami Memorial Hospital from 2004 to 2015. Data were stratified by sex to investigate the association between AST/ALT and T2DM incidence by sex. Multiple regression analysis, smooth curve fitting model and subgroup analysis were used to determine the correlation, non-linear relationship and threshold effect between AST/ALT and T2DM. RESULTS In our study, 157 men and 40 women developed T2DM at follow-up. After adjusting for risk factors, AST/ALT was significantly associated with T2DM in men with NAFLD but not in women with NAFLD. The risk of T2DM increased as the AST/ALT ratio decreased. Besides, in male NAFLD patients, AST/ALT showed a non-linear relationship with T2DM, with an inflection point value of 0.964. When the AST to ALT ratio was below the threshold (AST/ALT <0.964), AST/ALT was significantly negatively associated with T2DM (HR = 0.177, 95% CI 0.055-0.568; P = 0.0036). In contrast, when AST/ALT >0.964, no significant association was found (HR = 3.174, 95% CI 0.345-29.167; P = 0.3074). Moreover, subgroup analysis showed that GGT could alter the relationship between AST/ALT and T2DM. In the group with GGT ≤ 40, AST/ALT was strongly associated with T2DM (HR = 0.24, 95% CI 0.09-0.66; P = 0.0059). CONCLUSIONS These results suggested that there were sex differences in the association between AST/ALT and T2DM in NAFLD participants. A non-linear association between AST/ALT and T2DM was observed in males. AST/ALT in the normal GGT group (GGT ≤40) might better facilitate the early screening of T2DM.
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Affiliation(s)
- Cong Zhang
- Department of Endocrinology, The First Clinical Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Qian Xu
- Department of Endocrinology, The First Clinical Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Chengye Xu
- Department of Endocrinology, The First Clinical Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Kun Yang
- Department of Endocrinology, The First Clinical Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Tian Xia
- Department of Endocrinology, The First Clinical Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Wuying Hasi
- Department of Endocrinology, The First Clinical Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Ming Hao
- Department of Endocrinology, The First Clinical Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Hongyu Kuang
- Department of Endocrinology, The First Clinical Hospital of Harbin Medical University, Harbin, Heilongjiang, China
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Hong C, Zhu Q, Li Y, Tang S, Lin S, Yang Y, Yuan S, Shao L, Wu Y, Liu B, Li B, Meng F, Chen Y, Hong M, Qi X. Acute kidney injury defined by cystatin C may be superior for predicting the outcomes of liver cirrhosis with acute gastrointestinal bleeding. Ren Fail 2022; 44:398-406. [PMID: 35225149 PMCID: PMC8890530 DOI: 10.1080/0886022x.2022.2039193] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND & AIMS Acute kidney injury (AKI) is conventionally evaluated by a dynamic change of serum creatinine (Scr). Cystatin C (CysC) seems to be a more accurate biomarker for assessing kidney function. This retrospective multicenter study aims to evaluate whether AKI re-defined by CysC can predict the in-hospital outcomes of patients with liver cirrhosis and acute gastrointestinal bleeding. METHODS Overall, 677 cirrhotic patients with acute gastrointestinal bleeding, in whom both Scr and CysC levels were detected at admissions, were screened. eGFRScr, eGFRCysC, and eGFRScr-CysC were calculated. MELD-Na score and AKI were re-evaluated by CysC instead of Scr. Odds ratios (ORs) were calculated in the logistic regression analyses. The receiver operating characteristic (ROC) curve analyses were performed. RESULTS Univariate logistic regression analyses demonstrated that baseline Scr and CysC levels, eGFRScr, eGFRCysC, eGFRScr-CysC, original MELD-Na score defined by Scr, MELD-Na score re-defined by CysC, and AKI re-defined by CysC, but not conventional AKI defined by Scr, were significantly associated with in-hospital death. ROC analyses showed that baseline CysC level, eGFRScr, eGFRCysC, eGFRScr-CysC, original MELD-Na score defined by Scr, and MELD-Na score re-defined by CysC, but not baseline Scr level, could significantly predict the risk of in-hospital death. CONCLUSIONS AKI re-defined by CysC may be superior for predicting the in-hospital mortality of cirrhotic patients with acute gastrointestinal bleeding.
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Affiliation(s)
- Cen Hong
- Department of Gastroenterology, General Hospital of Northern Theater Command (formally called General Hospital of Shenyang Military Area), Shenyang, China
| | - Qiang Zhu
- Department of Gastroenterology, Shandong Provincial Hospital, Shandong Frist Medical University, Jinan, China
| | - Yiling Li
- Department of Gastroenterology, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Shanhong Tang
- Department of Gastroenterology, General Hospital of Western Theater Command, Chengdu, China
| | - Su Lin
- Department of Hepatology, Hepatology Research Institute, The First Affiliated Hospital, Fujian Medical University, Fuzhou, China
| | - Yida Yang
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Shanshan Yuan
- Department of Gastroenterology, Xi'an Central Hospital, Xi'an, China
| | - Lichun Shao
- Department of Gastroenterology, Air Force Hospital of Northern Theater Command, Shenyang, China
| | - Yunhai Wu
- Department of Critical Care Medicine, The Sixth People's Hospital of Shenyang, Shenyang, China
| | - Bang Liu
- Department of Hepatobiliary Disease, Fuzong Clinical Medical College of Fujian Medical University & 900 Hospital of the Joint Logistics Team, Fuzhou, China
| | - Bimin Li
- Department of Gastroenterology, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Fanping Meng
- Department of Biological Therapy, The Fifth Medical Center of PLA General Hospital, Beijing, China
| | - Yu Chen
- Fourth Department of Liver Disease (Difficult & Complicated Liver Diseases and Artificial Liver Center), Beijing You’an Hospital, Affiliated to Capital Medical University, Beijing, China
| | - Min Hong
- Department of Nephrology, General Hospital of Northern Theater Command (formally called General Hospital of Shenyang Military Area), Shenyang, China
| | - Xingshun Qi
- Department of Gastroenterology, General Hospital of Northern Theater Command (formally called General Hospital of Shenyang Military Area), Shenyang, China
- CONTACT Xingshun Qi Department of Gastroenterology, General Hospital of Northern Theater Command (formerly called General Hospital of Shenyang Military Area), No. 83 Wenhua Road, Shenyang, Liaoning Province, China
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Xin C, Xie J, Fan H, Sun X, Shi B. Association Between Serum Cystatin C and Thyroid Diseases: A Systematic Review and Meta-Analysis. Front Endocrinol (Lausanne) 2021; 12:766516. [PMID: 34867811 PMCID: PMC8639734 DOI: 10.3389/fendo.2021.766516] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/29/2021] [Accepted: 10/23/2021] [Indexed: 12/03/2022] Open
Abstract
Background Cystatin C (CysC) is often used to diagnose and monitor renal diseases. Although some studies have investigated the association between serum CysC levels and thyroid diseases, their reported results were inconsistent. Therefore, the relationship between CysC levels and thyroid diseases remains controversial. Aim This meta-analysis aimed to statistically evaluate serum CysC levels in patients with thyroid diseases. Methods A literature search was conducted using the PubMed, Web of Science, Embase, EBSCO, and Wiley Online Library databases. The following search terms were used for the title or abstract: "Cystatin C" or "CysC" in combination with the terms "thyroid disease", "thyroid function", "hypothyroidism", or "hyperthyroidism". The results of the systematic analysis were presented as standardized mean differences (SMDs) with corresponding 95% confidence intervals (CIs). Results Eleven articles (1,265 cases and 894 controls) were included in the meta-analysis. The results of the meta-analysis showed that the serum CysC levels of patients with hyperthyroidism were significantly higher than those of the controls (SMD: 1.79, 95% CI [1.34, 2.25]), and the serum CysC levels of patients with hypothyroidism were significantly lower than those of the controls (SMD -0.59, 95% CI [-0.82, -0.36]). Moreover, the treatment of thyroid diseases significantly affected serum CysC levels. Conclusions To the best of our knowledge, this meta-analysis is the first to evaluate serum CysC levels in patients with thyroid diseases. Our findings suggest that thyroid function affects serum CysC levels and that serum CysC may be an effective marker for monitoring thyroid diseases. Systematic Review Registration PROSPERO [https://www.crd.york.ac.uk/PROSPERO/display_record.php?RecordID=258022], identifier CRD42021258022].
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Affiliation(s)
- Caihong Xin
- Department of Endocrinology and Metabolism, Fourth People’s Hospital of Shenyang, Shenyang, China
| | - Jing Xie
- Department of Endocrinology and Metabolism, First Affiliated Hospital of Soochow University, Suzhou, China
| | - Huaying Fan
- Department of Endocrinology and Metabolism, First Affiliated Hospital of Soochow University, Suzhou, China
| | - Xin Sun
- Department of Endocrinology and Metabolism, First Affiliated Hospital of Soochow University, Suzhou, China
| | - Bimin Shi
- Department of Endocrinology and Metabolism, First Affiliated Hospital of Soochow University, Suzhou, China
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Markos JR, Schaepe KS, Teaford HR, Rule AD, Kashani KB, Lieske JC, Barreto EF. Clinician perspectives on inpatient cystatin C utilization: A qualitative case study at Mayo Clinic. PLoS One 2020; 15:e0243618. [PMID: 33306741 PMCID: PMC7732069 DOI: 10.1371/journal.pone.0243618] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Accepted: 11/24/2020] [Indexed: 11/24/2022] Open
Abstract
Introduction Serum creatinine (SCr) testing has been the mainstay of kidney function assessment for decades despite known limitations. Cystatin C (CysC) is an alternative biomarker that is generally less affected than SCr by pertinent non-renal factors in hospitalized patients, such as muscle mass. Despite its potential advantages, the adoption of CysC for inpatient care is not widespread. At one hospital with CysC testing, we demonstrated a significant rise in non-protocolized use over the last decade. This study uses qualitative methods to provide the first report of how clinicians understand, approach, and apply CysC testing in inpatient care. Methods Fifteen clinicians from various disciplines were interviewed about their experience with inpatient CysC testing. The semi-structured interviews were audio-recorded, transcribed verbatim, and analyzed thematically using a phenomenological approach. Results Knowledge and confidence with CysC varied greatly. Clinicians reported first learning about the test from colleagues on consulting services or multidisciplinary teams. The majority believed CysC to provide a more accurate measure of kidney function than SCr. Common scenarios for CysC ordering included medication dosing, evaluation of acute kidney injury, and a thorough evaluation of kidney function in patients with risk factors for an altered SCr. Facilitators for ordering CysC included the availability of rapid results turnaround and the automated calculation of glomerular filtration rate based on the biomarker. Barriers to use included a lack of education about CysC, and the absence of an institutional protocol for use. Discussion Clinicians at our site decided independent of institutional guidance whether and when CysC added value to patient care. While the majority of study participants indicated advantages to rapid turnaround CysC testing, its use depended not just on the features of the specific case but on clinician familiarity and personal preference. Findings from this research can guide the implementation and expansion of CysC testing.
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Affiliation(s)
- James Roland Markos
- Mayo Clinic Alix School of Medicine, Mayo Clinic, Rochester, MN, United States of America
| | - Karen S. Schaepe
- Robert D. and Patricia E. Kern Center for the Science of Health Care Delivery, Mayo Clinic, Rochester, MN, United States of America
| | - Hilary R. Teaford
- Department of Pharmacy, Cedars-Sinai Medical Center, Los Angeles, CA, United States of America
| | - Andrew D. Rule
- Division of Nephrology and Hypertension, Mayo Clinic, Rochester, MN, United States of America
- Division of Epidemiology, Mayo Clinic, Rochester, MN, United States of America
| | - Kianoush B. Kashani
- Division of Nephrology and Hypertension, Mayo Clinic, Rochester, MN, United States of America
- Division of Pulmonary and Critical Care Medicine, Mayo Clinic, Rochester, MN, United States of America
| | - John C. Lieske
- Division of Nephrology and Hypertension, Mayo Clinic, Rochester, MN, United States of America
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, United States of America
| | - Erin F. Barreto
- Robert D. and Patricia E. Kern Center for the Science of Health Care Delivery, Mayo Clinic, Rochester, MN, United States of America
- Department of Pharmacy, Mayo Clinic, Rochester, MN, United States of America
- * E-mail:
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Effect of Cystatin C on Vancomycin Clearance Estimation in Critically Ill Children Using a Population Pharmacokinetic Modeling Approach. Ther Drug Monit 2020; 42:848-855. [PMID: 32947559 DOI: 10.1097/ftd.0000000000000796] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Vancomycin is eliminated by glomerular filtration, but current approaches to estimate kidney function in children are unreliable. The authors sought to compare the suitability of cystatin C (CysC)-based glomerular filtration rate equations with the most commonly used creatinine-based equation, bedside Schwartz, to estimate vancomycin clearance (CL). METHODS This prospective observational study enrolled critically ill patients (2-18 years) receiving intravenous vancomycin at the Children's Hospital of Philadelphia during December 2015-November 2017. Vancomycin levels were collected during clinical care and at 3 times during a single dosing interval. Plasma CysC was measured within 24 hours before intravenous vancomycin (baseline) initiation or immediately after enrollment and along with the third pharmacokinetic sample. Nonlinear mixed effects modeling was performed using NONMEM software. Covariate selection was used to test model fit with inclusion of the estimated glomerular filtration rate (eGFR) on CL using bedside Schwartz versus various published CysC-based equations. RESULTS In total, 83 vancomycin levels were obtained from 20 children. The median age was 12.7 years; 6 patients were women. A 1-compartment model best described the data; CL was allometrically scaled to 0.75. During covariate selection, inclusion of the eGFR calculated using a CysC-based equation significantly improved model fit [reduction in objective function value (OFV) range: -17.191 to -18.704] than bedside Schwartz ([INCREMENT]OFV -12.820). Including the full age spectrum equation, an eGFR equation based on both creatinine and CysC, led to the largest OFV reduction (-22.913); female sex was also a significant covariate of CL in the model. Final model pharmacokinetic indices were CL = 0.29 L/h/kg and volume of distribution = 0.48 L/kg. CONCLUSIONS CysC-based equations help better estimate vancomycin CL than bedside Schwartz in critically ill children.
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Jin S, Xu J, Shen G, Gu P. Predictive value of circulating cystatin C level in patients with acute coronary syndrome: a meta-analysis. Scandinavian Journal of Clinical and Laboratory Investigation 2020; 81:1-7. [PMID: 33207943 DOI: 10.1080/00365513.2020.1846212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Circulating cystatin C level has been identified as a predictor of adverse outcomes in patients with coronary artery disease (CAD). This meta-analysis aimed to investigate the value of circulating cystatin C level for predicting adverse outcomes in patients with acute coronary syndrome (ACS). We comprehensively searched articles indexed in Pubmed and Embase databases from their inceptions to 30 November 2019. All available observational studies that investigated the association between circulating cystatin C level and major adverse cardiovascular events [MACE] (including death, heart failure, re-infarction, target vascular revascularization, angina and stroke) or all-cause mortality in patients with ACS were included. The prognostic value was expressed by pooling the multivariable-adjusted hazard risk (HR) with 95% confidence interval (CI) for the highest versus the lowest category of cystatin C level. Eleven eligible studies (12 articles) with 4600 ACS patients were identified. Meta-analysis indicated that the highest versus lowest category of cystatin C level was associated with higher risk of MACE (HR 2.28; 95% CI 1.92-2.71) and all-cause mortality (HR 2.89; 95% CI 1.43-5.83) after adjustment for estimated glomerular filtration rate (eGFR) or creatinine. Subgroup analysis by subtypes of patients, study design, follow-up duration and cutoff level of cystatin C further confirmed the value of cystatin C level for predicting MACE. Elevated circulating cystatin C level at baseline is strongly and independently associated with an increased risk of MACE and all-cause mortality in patients with ACS. Determination of circulating cystatin C level has potential to improve risk stratification of ACS patients.
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Affiliation(s)
- Song Jin
- Department of Geriatrics, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, PR China
| | - Jian Xu
- Department of Cardiology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, PR China
| | - Gan Shen
- Department of Geriatrics, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, PR China
| | - Pengying Gu
- Department of Geriatrics, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, PR China
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Zhu XR, Ge N, Wang Y, Zhai JL, Liu C. Corticosteroids significantly increase cystatin C levels in the plasma by promoting cystatin C production in rats. Ren Fail 2020; 41:698-703. [PMID: 31352865 PMCID: PMC6711078 DOI: 10.1080/0886022x.2019.1638798] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Background: Several studies have shown that non-renal factors such as corticosteroids may increase plasma cystatin C levels without affecting kidney function. However, the mechanisms underlying this are unclear. We hypothesized that corticosteroids may increase cystatin C levels in the plasma by promoting its production in tissues. In the present study, we aimed to test our hypothesis in rats by investigating the effect of corticosteroids on cystatin C production in tissues and the glomerular filtration rate (GFR), as measured by the gold standard method (i.e., inulin clearance). Results: Dexamethasone treatment was associated with much higher concentrations of cystatin C in all organ tissue homogenates tested. Dexamethasone increased plasma cystatin C levels in rats, without any decrease in renal inulin clearance. The impact of dexamethasone on plasma and organ tissue cystatin C levels was abolished by RU486, indicating the effect was glucocorticoid receptor-mediated. Conclusions: Our study provides direct evidence that corticosteroids may increase cystatin C levels in the plasma by promoting its production, without any decrease in GFR.
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Affiliation(s)
- Xiao-Ran Zhu
- a Department of Pharmacy, Hebei General Hospital , Shijiazhuang , China.,b The First Cardiology Division, The First Hospital of Hebei Medical University , Shijiazhuang , China
| | - Ning Ge
- c School of Medicine, Regenerative Medicine Institute, National University of Ireland Galway , Galway , Ireland
| | - Yu Wang
- b The First Cardiology Division, The First Hospital of Hebei Medical University , Shijiazhuang , China
| | - Jian-Long Zhai
- d Cardiology Division, Hebei General Hospital , Shijiazhuang , China
| | - Chao Liu
- b The First Cardiology Division, The First Hospital of Hebei Medical University , Shijiazhuang , China.,e Cardiovascular Research Center, Hebei Medical University , Shijiazhuang , China
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