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Shen P, Deng X, Li T, Chen X, Wu X. Demethylzeylasteral protects against renal interstitial fibrosis by attenuating mitochondrial complex I-mediated oxidative stress. JOURNAL OF ETHNOPHARMACOLOGY 2024; 327:117986. [PMID: 38437887 DOI: 10.1016/j.jep.2024.117986] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 02/23/2024] [Accepted: 02/25/2024] [Indexed: 03/06/2024]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Renal interstitial fibrosis (RIF) is a main pathological process in chronic kidney disease (CKD). Demethylzeylasteral (DML), a major component of Tripterygium wilfordii Hook. f., has anti-renal fibrosis effects. However, its mechanism of action remains incompletely understood. AIM OF THE STUDY The present study was designed to comprehensively examine the effects of DML on RIF and the underlying mechanisms. MATERIALS AND METHODS Pathological experiments were performed to determine the therapeutic effect of DML on a mouse model of UUO-induced RIF. To determine the novel mechanisms underlying the therapeutic effects of DML against RIF, a comprehensive transcriptomics analysis was performed on renal tissues, which was further verified by a series of experiments. RESULTS Pathological and immunohistochemical staining showed that DML inhibited UUO-induced renal damage and reduced the expression of fibrosis-related proteins in mice. Transcriptomic analysis revealed that the partial subunits of mitochondrial complex (MC) I and II may be targets by which DML protects against RIF. Furthermore, DML treatment reduced mitochondrial reactive oxygen species (ROS) levels, consequently promoting ATP production and mitigating oxidative stress-induced injury in mice and cells. Notably, this protective effect was attributed to the inhibition of MC I activity, suggesting a crucial role for this specific complex in mediating the therapeutic effects of DML against RIF. CONCLUSIONS This study provides compelling evidence that DML may be used to treat RIF by effectively suppressing mitochondrial oxidative stress injury mediated by MC I. These findings offer valuable insights into the pharmacological mechanisms of DML and its potential clinical application for patients with CKD.
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Affiliation(s)
- Pan Shen
- Department of Rheumatology and Immunology, Zhongnan Hospital, Wuhan University, China.
| | - Xuan Deng
- Department of Nephrology, Zhongnan Hospital, Wuhan University, China.
| | - Tingting Li
- Department of Integrated Chinese Traditional and Western Medicine, Tongji Hospital, Tongji Medical College of Huazhong University of Science and Technology, China
| | - Xiaoqi Chen
- Department of Rheumatology and Immunology, Zhongnan Hospital, Wuhan University, China.
| | - Xiaoyan Wu
- Department of Nephrology, Zhongnan Hospital, Wuhan University, China.
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2
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Vuong KT, Vega MR, Casey L, Swartz SJ, Srivaths P, Osborne SW, Rhee CJ, Arikan AA, Joseph C. Clearance and nutrition in neonatal continuous kidney replacement therapy using the Carpediem™ system. Pediatr Nephrol 2024; 39:1937-1950. [PMID: 38231233 DOI: 10.1007/s00467-023-06237-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Revised: 11/14/2023] [Accepted: 11/15/2023] [Indexed: 01/18/2024]
Abstract
BACKGROUND Infants with kidney failure (KF) demonstrate poor growth partly due to obligate fluid and protein restrictions. Delivery of liberalized nutrition on continuous kidney replacement therapy (CKRT) is impacted by clinical instability, technical dialysis challenges, solute clearance, and nitrogen balance. We analyzed delivered nutrition and growth in infants receiving CKRT with the Cardio-Renal, Pediatric Dialysis Emergency Machine (Carpediem™). METHODS Single-center observational study of infants receiving CKRT with the Carpediem™ between June 1 and December 31, 2021. We collected prospective circuit characteristics, delivered nutrition, anthropometric measurements, and illness severity Score for Neonatal Acute Physiology-II. As a surrogate to normalized protein catabolic rate in maintenance hemodialysis, we calculated normalized protein nitrogen appearance (nPNA) using the Randerson II continuous dialysis model. Descriptive statistics, Spearman correlation coefficient, Mann Whitney, Wilcoxon signed rank, receiver operating characteristic curves, and Kruskal-Wallis analysis were performed using SAS version 9.4. RESULTS Eight infants received 31.9 (22.0, 49.7) days of CKRT using mostly (90%) regional citrate anticoagulation. Delivered nutritional volume, protein, total calories, enteral calories, nPNA, and nitrogen balance increased on CKRT. Using parenteral nutrition, 90 ml/kg/day should meet caloric and protein needs. Following initial weight loss of likely fluid overload, exploratory sensitivity analysis suggests weight gain occurred after 14 days of CKRT. Despite adequate nutritional delivery, goal weight (z-score = 0) and growth velocity were not achieved until 6 months after CKRT start. Most (5 infants, 62.5%) survived and transitioned to peritoneal dialysis (PD). CONCLUSIONS Carpediem™ is a safe and efficacious bridge to PD in neonatal KF. Growth velocity of infants on CKRT appears delayed despite delivery of adequate calories and protein.
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Affiliation(s)
- Kim T Vuong
- Division of Pediatric Nephrology, Department of Pediatrics, Baylor College of Medicine, Texas Children's Hospital, Houston, TX, USA.
| | - Molly R Vega
- Division of Pediatric Nephrology, Department of Pediatrics, Baylor College of Medicine, Texas Children's Hospital, Houston, TX, USA
| | - Lauren Casey
- Division of Pediatric Nephrology, Department of Pediatrics, Baylor College of Medicine, Texas Children's Hospital, Houston, TX, USA
| | - Sarah J Swartz
- Division of Pediatric Nephrology, Department of Pediatrics, Baylor College of Medicine, Texas Children's Hospital, Houston, TX, USA
| | - Poyyapakkam Srivaths
- Division of Pediatric Nephrology, Department of Pediatrics, Baylor College of Medicine, Texas Children's Hospital, Houston, TX, USA
| | - Scott W Osborne
- Division of Neonatology, Department of Pediatrics, Baylor College of Medicine, Texas Children's Hospital, Houston, TX, USA
| | - Christopher J Rhee
- Division of Neonatology, Department of Pediatrics, Baylor College of Medicine, Texas Children's Hospital, Houston, TX, USA
| | - Ayse Akcan Arikan
- Division of Pediatric Nephrology, Department of Pediatrics, Baylor College of Medicine, Texas Children's Hospital, Houston, TX, USA
- Division of Critical Care Medicine, Department of Pediatrics, Baylor College of Medicine, Texas Children's Hospital, Houston, TX, USA
| | - Catherine Joseph
- Division of Pediatric Nephrology, Department of Pediatrics, Baylor College of Medicine, Texas Children's Hospital, Houston, TX, USA
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Slagle C, Askenazi D, Starr M. Recent Advances in Kidney Replacement Therapy in Infants: A Review. Am J Kidney Dis 2024; 83:519-530. [PMID: 38147895 DOI: 10.1053/j.ajkd.2023.10.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Revised: 10/10/2023] [Accepted: 10/14/2023] [Indexed: 12/28/2023]
Abstract
Kidney replacement therapy (KRT) is used to treat children and adults with acute kidney injury (AKI), fluid overload, kidney failure, inborn errors of metabolism, and severe electrolyte abnormalities. Peritoneal dialysis and extracorporeal hemodialysis/filtration can be performed for different durations (intermittent, prolonged intermittent, and continuous) through either adaptation of adult devices or use of infant-specific devices. Each of these modalities have advantages and disadvantages, and often multiple modalities are used depending on the scenario and patient-specific needs. Traditionally, these therapies have been challenging to deliver in infants due the lack of infant-specific devices, small patient size, required extracorporeal volumes, and the risk of hemodynamic stability during the initiation of KRT. In this review, we discuss challenges, recent advancements, and optimal approaches to provide KRT in hospitalized infants, including a discussion of peritoneal dialysis and extracorporeal therapies. We discuss each specific KRT modality, review newer infant-specific devices, and highlight the benefits and limitations of each modality. We also discuss the ethical implications for the care of infants who need KRT and areas for future research.
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Affiliation(s)
- Cara Slagle
- Division of Neonatology, Department of Pediatrics, Indiana University School of Medicine, Indianapolis, Indiana
| | - David Askenazi
- Division of Nephrology, Department of Pediatrics, University of Alabama at Birmingham, Birmingham, Alabama
| | - Michelle Starr
- Division of Nephrology and Division of Child Health Service Research, Department of Pediatrics, Indiana University School of Medicine, Indianapolis, Indiana.
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Kitzler TM, Chun J. Understanding the Current Landscape of Kidney Disease in Canada to Advance Precision Medicine Guided Personalized Care. Can J Kidney Health Dis 2023; 10:20543581231154185. [PMID: 36798634 PMCID: PMC9926383 DOI: 10.1177/20543581231154185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Accepted: 12/19/2022] [Indexed: 02/15/2023] Open
Abstract
Purpose of Review To understand the impact of kidney disease in Canada and the priority areas of kidney research that can benefit from patient-oriented, precision medicine research using novel technologies. Sources of Information Information was collected through discussions between health care professionals, researchers, and patient partners. Literature was compiled using search engines (PubMed, PubMed central, Medline, and Google) and data from the Canadian Organ Replacement Register. Methods We reviewed the impact, prevalence, economic burden, causes of kidney disease, and priority research areas in Canada. After reviewing the priority areas for kidney research, potential avenues for future research that can integrate precision medicine initiatives for patient-oriented research were outlined. Key Findings Chronic kidney disease (CKD) remains among the top causes of morbidity and mortality in the world and exerts a large financial strain on the health care system. Despite the increasing number of people with CKD, funding for basic kidney research continues to trail behind other diseases. Current funding strategies favor existing clinical treatment and patient educational strategies. The identification of genetic factors for various forms of kidney disease in the adult and pediatric populations provides mechanistic insight into disease pathogenesis. Allocation of resources and funding toward existing high-yield personalized research initiatives have the potential to significantly affect patient-oriented research outcomes but will be difficult due to a constant decline of funding for kidney research. Limitations This is an overview primarily focused on Canadian-specific literature rather than a comprehensive systematic review of the literature. The scope of our findings and conclusions may not be applicable to health care systems in other countries.
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Affiliation(s)
- Thomas M. Kitzler
- Division of Medical Genetics, Department of Specialized Medicine, McGill University Health Centre, Montreal, QC, Canada,Department of Human Genetics, McGill University, Montreal, QC, Canada,Child Health and Human Development Program, Research Institute of the McGill University Health Centre, Montreal, QC, Canada
| | - Justin Chun
- Department of Medicine, Cumming School of Medicine, Snyder Institute for Chronic Diseases, University of Calgary, AB, Canada,Justin Chun, Division of Nephrology, Department of Medicine, University of Calgary, Health Research Innovation Centre, 4A12, 3280 Hospital Drive Northwest, Calgary, AB T2N 4Z6, Canada.
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Claes DJ, Richardson T, Harer MW, Keswani M, Neu A, Mahon ACR, Somers MJ, Traum AZ, Warady BA. Survival of neonates born with kidney failure during the initial hospitalization. Pediatr Nephrol 2023; 38:583-591. [PMID: 35655038 DOI: 10.1007/s00467-022-05626-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Revised: 05/10/2022] [Accepted: 05/10/2022] [Indexed: 01/10/2023]
Abstract
BACKGROUND Survival to hospital discharge in neonates born with kidney failure has not been previously described. METHODS This was a retrospective, observational analysis of the Pediatric Health Information System (PHIS) database from 2005 to 2019. Primary outcome was survival at discharge; secondary outcomes were hospital and ICU length of stay (LOS). Univariate analysis was performed to describe the population by birth weight (BW) and characterize survival; multivariable generalized liner mixed modeling assuming a binomial distribution and logit link was performed to identify mortality risk factors. RESULTS Of 213 neonates born with kidney failure (median BW 2714 g; GA 35 weeks; 68% male), 4 (1.9%) did not receive dialysis or peritoneal dialysis (PD) catheter placement, 152 (72.9%) received PD only, 49 (23.4%) received PD plus extracorporeal dialysis (ECD), and 8 (3.4%) were treated with an undocumented dialysis modality. Median age at dialysis initiation was 7 days; median hospital LOS and ICU LOS were 84 and 69 days, respectively. One-hundred and sixty-two patients (76%) survived to discharge. Non-survivors (n = 51) were more likely to have received ECD and mechanical ventilation, and had a longer duration of mechanical ventilation. Every day of mechanical ventilation increased the mortality odds by 2% (n = 189; adjusted OR 1.02; 1.01, 1.03); in addition, the odds of mortality were 2 times higher in those who received ECD vs. only PD (adjusted OR 2.25; 1.04, 4.86). CONCLUSIONS Survival to initial hospital discharge occurs in the majority of neonates born with kidney failure. Predictors of increased mortality included longer duration of mechanical ventilation, as well as the requirement for ECD. A higher resolution version of the Graphical abstract is available as Supplementary information.
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Affiliation(s)
- Donna J Claes
- Division of Pediatric Nephrology, Department of Pediatrics, University of Cincinnati College of Medicine, 3333 Burnet Avenue, MLC 7022, Cincinnati, OH, 45229, USA.
| | | | - Matthew W Harer
- Division of Neonatology, Department of Pediatrics, University of Wisconsin, Madison, WI, USA
| | - Mahima Keswani
- Ann and Robert H. Lurie Children's Hospital of Chicago, Chicago, IL, USA
| | - Alicia Neu
- Division of Pediatric Nephrology, The John's Hopkins University School of Medicine, Baltimore, MD, USA
| | - Allison C Redpath Mahon
- Division of Pediatric Nephrology, Department of Pediatrics, University of Wisconsin, Madison, WI, USA
| | - Michael J Somers
- Division of Nephrology, Boston Children's Hospital, Boston, MA, USA
| | - Avram Z Traum
- Division of Nephrology, Boston Children's Hospital, Boston, MA, USA
| | - Bradley A Warady
- Division of Pediatric Nephrology, Children's Mercy Kansas City, Kansas City, MO, USA
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Slagle C, Schuh M, Grisotti G, Riddle S, Reddy P, Claes D, Lim FY, VanderBrink B. In utero renal failure. Semin Pediatr Surg 2022; 31:151195. [PMID: 35725056 DOI: 10.1016/j.sempedsurg.2022.151195] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Cara Slagle
- Division of Neonatology and Pulmonary Biology, Cincinnati Children's Hospital Medical Center and Department of Pediatrics, University of Cincinnati College of Medicine, 3333 Burnet Avenue, MLC 7009, United States.
| | - Meredith Schuh
- Division of Nephrology and Hypertension, Cincinnati Children's Hospital Medical Center and Department of Pediatrics, University of Cincinnati College of Medicine, United States
| | - Gabriella Grisotti
- Division of Pediatric General and Thoracic Surgery and Center for Fetal Care, Cincinnati Children's Hospital Medical Center and Department of Surgery, University of Cincinnati College of Medicine, United States
| | - Stefanie Riddle
- Division of Neonatology and Pulmonary Biology, Cincinnati Children's Hospital Medical Center and Department of Pediatrics, University of Cincinnati College of Medicine, 3333 Burnet Avenue, MLC 7009, United States
| | - Pramod Reddy
- Division of Pediatric Urology, Cincinnati Children's Hospital Medical Center and Department of Surgery, University of Cincinnati College of Medicine, United States
| | - Donna Claes
- Division of Nephrology and Hypertension, Cincinnati Children's Hospital Medical Center and Department of Pediatrics, University of Cincinnati College of Medicine, United States
| | - Foong-Yen Lim
- Division of Pediatric General and Thoracic Surgery and Center for Fetal Care, Cincinnati Children's Hospital Medical Center and Department of Surgery, University of Cincinnati College of Medicine, United States
| | - Brian VanderBrink
- Division of Pediatric Urology, Cincinnati Children's Hospital Medical Center and Department of Surgery, University of Cincinnati College of Medicine, United States
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Lombel RM, Brakeman PR, Sack BS, Butani L. Urologic Considerations in Pediatric Chronic Kidney Disease. Adv Chronic Kidney Dis 2022; 29:308-317. [PMID: 36084977 DOI: 10.1053/j.ackd.2022.02.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Revised: 02/20/2022] [Accepted: 02/23/2022] [Indexed: 11/11/2022]
Abstract
Common causes of pediatric ESRD are distinct from those seen in the adult population. In the pediatric population, the most common are congenital anomalies of the kidney and urinary tract (CAKUT), affecting approximately 30% of children with CKD. These structural anomalies often require coordinated care with the pediatric urology team to address voiding issues, bladder involvement, and the potential need for surgical intervention. For pediatric nephrologists and urologists, common CAKUT that are encountered include antenatal hydronephrosis, obstructive uropathies (eg, posterior urethral valves), and vesicoureteral reflux. As more pediatric patients with CAKUT, CKD, and ESRD transition to adult care, it is important for receiving adult nephrologists to understand the clinical presentation, natural history, and prognosis for these diagnoses. This review outlines the diagnosis and potential interventions for these conditions, including strategies to address bladder dysfunction that is often seen in children with CAKUT. A discussion of these management decisions (including surgical intervention) for CAKUT, which are quite common to pediatric nephrology and urology practices, may provide unique learning opportunities for adult nephrologists who lack familiarity with these pediatric conditions.
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Affiliation(s)
- Rebecca M Lombel
- Division of Pediatric Nephrology, University of Michigan, Ann Arbor, MI.
| | - Paul R Brakeman
- Division of Pediatric Nephrology, University of California, San Francisco, San Francisco, CA
| | - Bryan S Sack
- Division of Pediatric Urology, University of Michigan, Ann Arbor, MI
| | - Lavjay Butani
- Division of Pediatric Nephrology, University of California Davis Medical Center, Sacramento, CA
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Kidney Transplantation in Small Children: Association Between Body Weight and Outcome-A Report From the ESPN/ERA-EDTA Registry. Transplantation 2022; 106:607-614. [PMID: 33795596 DOI: 10.1097/tp.0000000000003771] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
BACKGROUND Many centers accept a minimum body weight of 10 kg as threshold for kidney transplantation (Tx) in children. As solid evidence for clinical outcomes in multinational studies is lacking, we evaluated practices and outcomes in European children weighing below 10 kg at Tx. METHODS Data were obtained from the European Society of Paediatric Nephrology/European Renal Association and European Dialysis and Transplant Association Registry on all children who started kidney replacement therapy at <2.5 y of age and received a Tx between 2000 and 2016. Weight at Tx was categorized (<10 versus ≥10 kg) and Cox regression analysis was used to evaluate its association with graft survival. RESULTS One hundred of the 601 children received a Tx below a weight of 10 kg during the study period. Primary renal disease groups were equal, but Tx <10 kg patients had lower pre-Tx weight gain per year (0.2 versus 2.1 kg; P < 0.001) and had a higher preemptive Tx rate (23% versus 7%; P < 0.001). No differences were found for posttransplant estimated glomerular filtration rates trajectories (P = 0.23). The graft failure risk was higher in Tx <10 kg patients at 1 y (graft survival: 90% versus 95%; hazard ratio, 3.84; 95% confidence interval, 1.24-11.84), but not at 5 y (hazard ratio, 1.71; 95% confidence interval, 0.68-4.30). CONCLUSIONS Despite a lower 1-y graft survival rate, graft function, and survival at 5 y were identical in Tx <10 kg patients when compared with Tx ≥10 kg patients. Our results suggest that early transplantation should be offered to a carefully selected group of patients weighing <10 kg.
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Viteri B, Elsingergy M, Roem J, Ng D, Warady B, Furth S, Tasian G. Ultrasound-Based Renal Parenchymal Area and Kidney Function Decline in Infants With Congenital Anomalies of the Kidney and Urinary Tract. Semin Nephrol 2021; 41:427-433. [PMID: 34916003 DOI: 10.1016/j.semnephrol.2021.09.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Congenital anomalies of the kidney and urinary tract are the leading cause of chronic kidney disease in children. Noninvasive imaging biomarkers that predict chronic kidney disease progression in early infancy are needed. We performed a pilot study nested in the prospective Chronic Kidney Disease in Children cohort study to determine the association between renal parenchymal area (RPA) on first post-natal renal ultrasound and change in estimated glomerular filtration rate (eGFR) in children with congenital anomalies of the kidney and urinary tract. Among 14 participants, 78.6% were males, the median age at the time of the ultrasound was 3.4 months (interquartile range, 1.3-7.9 mo), and the median total RPA z-score at baseline was -1.01 (interquartile range, -2.39 to 0.52). After a median follow-up period of 7.4 years (interquartile range, 6.8-8.2 y), the eGFR decreased from a median of 49.4 mL/min per 1.73 m2 at baseline to 29.4 mL/min per 1.73 m2, an annual eGFR percentage decrease of -4.68%. Lower RPA z-scores were correlated weakly with a higher annual decrease in eGFR (Spearman correlation, 0.35; 95% confidence interval, -0.25 to 0.76). This pilot study shows the feasibility of obtaining RPA from a routine ultrasound and suggests that a lower baseline RPA may be associated with a greater decrease in eGFR over time. Further studies with larger patient cohorts are needed to confirm this association.
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Affiliation(s)
- Bernarda Viteri
- Division of Nephrology, Department of Pediatrics, The Children's Hospital of Philadelphia, Philadelphia, PA; Division of Body Imaging, Department of Radiology, The Children's Hospital of Philadelphia, Philadelphia, PA; Department of Pediatrics, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA
| | - Mohamed Elsingergy
- Division of Body Imaging, Department of Radiology, The Children's Hospital of Philadelphia, Philadelphia, PA
| | - Jennifer Roem
- Division of General Epidemiology and Methodology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD
| | - Derek Ng
- Division of General Epidemiology and Methodology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD
| | - Bradley Warady
- Department of Paediatrics, University of Missouri-Kansas City School of Medicine, Kansas City, MO
| | - Susan Furth
- Division of Nephrology, Department of Pediatrics, The Children's Hospital of Philadelphia, Philadelphia, PA; Department of Pediatrics, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA; Department of Biostatistics, Epidemiology, and Informatics, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA
| | - Gregory Tasian
- Department of Biostatistics, Epidemiology, and Informatics, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA; Division of Pediatric Urology, Department of Surgery, The Children's Hospital of Philadelphia, Philadelphia, PA.
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Morr AK, Mosimann B, Tschumi S, Surbek D, Raio L. Differential Diagnosis and Prognosis of Fetuses with Bilateral Enlarged, Hyperechogenic Kidneys: Renal Volume and Amniotic Fluid Volume with Advancing Gestation. Z Geburtshilfe Neonatol 2021; 226:98-103. [PMID: 34492706 DOI: 10.1055/a-1586-5493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
INTRODUCTION This study's objective was to identify prenatal criteria helping differential diagnosis of bilateral enlarged, hyperechogenic kidneys, especially looking at development of renal volume and amniotic fluid volume with increasing gestational age. METHOD Retrospective analysis (single-center database) of all bilateral enlarged, hyperechogenic kidneys between 2000-2018. Renal enlargement was defined as renal volume>90th percentile. Evaluation included development of renal and amniotic fluid volume during pregnancy and fetal outcome. RESULTS 23 cases fulfilled the inclusion criteria. 12 pregnancies were terminated. For 11 continued pregnancies, longitudinal information on amniotic fluid volume and renal volume were available. 4 cases with oligohydramnios showed a progressive reduction; 6 cases with normal/increased amniotic fluid volume remained stable; in 1 case amniotic fluid volume normalized from initially being oligohydramnios. Regarding renal volume, 4 cases showed exponential enlargement, 3 cases linear progression; in 2 cases renal volume stabilized after initial progression; 2 cases showed initial progression and secondary regression. 4 fetuses survived: 3 autosomal dominant polycystic kidney diseases, 1 Bardet-Biedl syndrome. CONCLUSION Progressive reduction of amniotic fluid volume with exponential increase of renal volume is highly suggestive for autosomal recessive polycystic kidney disease. Cases of autosomal dominant polycystic kidney disease show a linear progression of renal volume>90th percentile and mostly normal amniotic fluid volume.
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Affiliation(s)
- Ann-Katrin Morr
- Department of Obstetrics, University Women's Hospital, Inselspital, Bern University Hospital, Bern, Switzerland
| | - Beatrice Mosimann
- Department of Obstetrics, University Women's Hospital, Inselspital, Bern University Hospital, Bern, Switzerland
| | - Sibylle Tschumi
- Department of Pediatric Nephrology, University Children's Hospital, Inselspital, Bern University Hospital, Bern, Switzerland
| | - Daniel Surbek
- Department of Obstetrics, University Women's Hospital, Inselspital, Bern University Hospital, Bern, Switzerland
| | - Luigi Raio
- Department of Obstetrics, University Women's Hospital, Inselspital, Bern University Hospital, Bern, Switzerland
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Khurana M. Renal Impairment in Pediatric Patients: Current Approaches to Drug Dosing. J Clin Pharmacol 2021; 61 Suppl 1:S161-S164. [PMID: 34185911 DOI: 10.1002/jcph.1908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Accepted: 05/06/2021] [Indexed: 11/07/2022]
Affiliation(s)
- Mona Khurana
- Division of Pediatrics and Maternal Health, Office of New Drugs, Center for Drug Evaluation and Research, US Food and Drug Administration, Silver Spring, Maryland, USA
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Abstract
Acute kidney injury (AKI) is a highly prevalent disease entity in the NICU, affecting nearly one-quarter of critically ill neonates by some reports. Though medical management remains the mainstay in the treatment of AKI, renal replacement therapy (RRT) is indicated when conservative measures are unable to maintain electrolytes, fluid balance, toxins, or waste products within a safe margin. Several modalities of RRT exist for use in neonatal populations, including peritoneal dialysis, hemodialysis, and continuous RRT. It is the aim of this review to introduce each of these RRT modalities, as well as to discuss their technical considerations, benefits, indications, contraindications, and complications.
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Affiliation(s)
| | - Jason M Misurac
- Division of Nephrology, Dialysis, and Transplantation, University of Iowa Stead Family Children's Hospital, Iowa City, IA
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13
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Bao N, Chen F, Dai D. The Regulation of Host Intestinal Microbiota by Polyphenols in the Development and Prevention of Chronic Kidney Disease. Front Immunol 2020; 10:2981. [PMID: 31969882 PMCID: PMC6960133 DOI: 10.3389/fimmu.2019.02981] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Accepted: 12/04/2019] [Indexed: 12/13/2022] Open
Abstract
Polyphenols are essential antioxidants in our regular diet, and have shown potential antibacterial effects. Other important biological effects, such as anticancer or antibacterial activities, have been demonstrated by some polyphenols. In recent years, the benefits of polyphenols to human health have attracted increasing attention from the scientific community. Recent studies have shown that polyphenols such as anthocyanin, catechin, chlorogenic acid, and resveratrol can inhibit pathogenic bacteria such as Escherichia coli and Salmonella to help regulate intestinal microflora. An imbalance of intestinal microflora and the destruction of intestinal barrier function have been found to have a potential relationship with the occurrence of chronic kidney disease (CKD). Specifically, they can aberrantly trigger the immune system to cause inflammation, increase the production of uremic toxins, and further worsen the condition of CKD. Therefore, the maintenance of intestinal microflora and the intestinal tract in a stable and healthy state may be able to "immunize" patients against CKD, and treat pre-existing disease. The use of common antibiotics may lead to drug resistance in pathogens, and thus beneficial polyphenols may be suitable natural substitutes for antibiotics. Herein we review the ability of different polyphenols, such as anthocyanin, catechin, chlorogenic acid, and resveratrol, to regulate intestinal microorganisms, inhibit pathogenic bacteria, and improve inflammation. In addition, we review the ability of different polyphenols to reduce kidney injury, as described in recent studies.
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Affiliation(s)
- Naren Bao
- Department of Anesthesiology, The First Hospital of China Medical University, Shenyang, China
| | - Fangjie Chen
- Department of Medical Genetics, School of Life Sciences, China Medical University, Shenyang, China
| | - Di Dai
- Department of Laboratory Medicine, The First Hospital of China Medical University, Shenyang, China
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14
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Meliţ LE, Mărginean CO, Mărginean CD, Mărginean MO, Aldea C. Neonatal polycystic kidney disease, a potential life-threatening condition at this age: A case report. Medicine (Baltimore) 2019; 98:e17707. [PMID: 31689802 PMCID: PMC6946439 DOI: 10.1097/md.0000000000017707] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Abstract
RATIONALE Autosomal recessive polycystic kidney disease (ARPKD) is a severe rare genetic condition, with high mortality rates and autosomal recessive pattern of transmission similar to most early onset cystic kidney diseases. The mortality rates can reach up to 30% during the neonatal period. PATIENT CONCERNS We report a case of a 27-day-old male neonate admitted in our clinic for fever, foul-smelling urine, and diarrhea. A previous abdominal ultrasound at the age of 2 weeks revealed enlarged, hyperechoic kidneys, no abnormalities of the urinary exam. Clinical examination revealed poor general status, ill-looking face, diminished cutaneous turgor, distended abdomen, and palpable kidneys. Laboratory tests pointed out leukopenia, anemia, border-line platelet count, elevated inflammatory biomarker level, hyponatremia, hypoalbuminemia, proteinuria, leukocyturia, and hematuria. Both urine and blood cultures were positive for E. coli. DIAGNOSES Abdominal ultrasound revealed bilateral nephromegaly, diminished parenchymatous index, with the absence of differentiation between the cortex and medulla. Abdominal MRI described bilateral nephromegaly, the hypertrophy comprising especially the structures of Malpighi pyramids, with multiple cystic lesions disseminated within both kidneys, projected also in Malpighi pyramids, their diameters ranging between 2 and 7 mm. Thus, our final diagnoses were polycystic kidney disease and sepsis due to urinary tract infection with E. coli. INTERVENTIONS After treating the infection, the patient was referred to a more experienced center for appropriate management of polycystic kidney disease. OUTCOMES The progress of the patient until the age of 1 year and 2 months has been remarkably favorable, presenting first-degree chronic kidney disease, with normal blood parameters and controlled blood pressure values, no other episodes of urinary infection, and without supplementary pathological changes in ultrasound. LESSONS Despite the poor prognosis of PKD reported in the literature, our case had an outstandingly favorable evolution during the first 2 years of life most-likely due to the early diagnosis and treatment, but also proper monitoring.
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Affiliation(s)
- Lorena Elena Meliţ
- Department of Pediatrics I, University of Medicine, Pharmacy, Sciences and Technology Târgu Mureş
| | - Cristina Oana Mărginean
- Department of Pediatrics I, University of Medicine, Pharmacy, Sciences and Technology Târgu Mureş
| | | | - Maria Oana Mărginean
- Department of Pediatric Cardiology, University of Medicine, Pharmacy, Sciences and Technology Târgu Mureş
| | - Cornel Aldea
- University of Medicine and Pharmacy Iuliu Haţeganu Cluj Napoca, Romania
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