Publications by authors named "Eileen Tsai-Chambers"

Article Synopsis
  • This study analyzed how well serum creatinine (Cr) and cystatin C (CysC)-based estimates of glomerular filtration rate (GFR) perform compared to measured GFR (mGFR) in pediatric kidney transplant patients.
  • The results indicated that the CysC-based method (Gentian CysC) showed good accuracy and low bias, especially in patients with histological changes, making it a potentially better option for monitoring kidney function.
  • Overall, the findings suggest that CysC-based equations could provide more reliable GFR estimates, which can be crucial for early detection and intervention in transplant patients.
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Article Synopsis
  • * This study evaluates whether combining plasmapheresis with rituximab can effectively prevent the recurrence of FSGS in kidney transplant patients.
  • * The combination therapy aims to offer a new treatment approach for recurrent FSGS, which currently has limited options and lacks standardized guidelines.
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Background: Treatment options for antibody-mediated rejection (AMR) are limited. Recent studies have shown that inhibition of interleukin-6 (IL-6)/interleukin-6 receptor (IL-6R) signaling can reduce inflammation and slow AMR progression.

Methods: We report our experience using monthly tocilizumab (anti-IL6R) in 25 pediatric renal transplant recipients with AMR, refractory to IVIg/Rituximab.

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Background: In pediatric kidney transplant recipients, anemia is common and oftentimes multifactorial. Hemoglobin concentrations may be affected by traditional factors, such as kidney function and iron status, as well as novel parameters, such as fibroblast growth factor 23 (FGF23).

Methods: Here, we evaluated associations among erythropoietic, iron-related, and FGF23 parameters in a cohort of pediatric kidney transplant recipients, hypothesizing that multiple factors are associated with hemoglobin concentrations.

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Introduction: Autoantibody to angiotensin II type 1 receptor (AT1R-Ab) has been recognized as a non-human leukocyte antigen (HLA) antibody relevant in transplantation. Endothelin type A receptor antibody (ETAR-Ab) has been strongly associated with AT1R-Ab, but the data in kidney transplantation are scarce.

Methods: We examined the relationship of ETAR-Ab and AT1R-Ab with clinical outcomes, biopsy findings, inflammatory cytokines, and HLA donor-specific antibody (DSA) in a cohort of pediatric renal transplant recipients.

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Article Synopsis
  • * Earlier research mainly focused on T-cells, but recent studies highlight the importance of B-cells and humoral immunity in the disease.
  • * A recent study suggests that a specific type of IgM might cause steroid-dependence in SSNS by failing to properly regulate T-cell function, shedding light on the complex roles of both T-cells and B-cells in this condition.
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Background: Polycystic kidney disease (PKD) is an inherited condition characterized by progressive development of end-stage renal disease, hypertension, hepatic fibrosis, and cysts in the kidney, liver, pancreas, spleen, thyroid, and epididymis. While malignancies have been reported in association with PKD in adults, the incidence of malignancies in children with PKD is not currently known.

Methods: We report on five patients with a known history of PKD who developed a malignancy as children at the University of California, Los Angeles and the University of Colorado Anschutz Medical Campus.

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Introduction: Angiotensin II type 1 receptor antibody (AT1R-Ab), is a non-human leukocyte antigen (HLA) antibody implicated in poor renal allograft outcomes, although its actions may be mediated through a different pathway than HLA donor-specific antibodies (DSAs). Our aim was to examine serum cytokine profiles associated with AT1R-Ab and distinguish them from those associated with HLA DSA in serially collected blood samples from a cohort of pediatric renal transplant recipients.

Methods: Blood samples from 65 pediatric renal transplant recipients drawn during the first 3 months posttransplant, at 6, 12, and 24 months posttransplant, and during suspected episodes of kidney transplant rejection were tested for AT1R-Ab, HLA DSA, and a panel of 6 cytokines (tumor necrosis factor [TNF]-α, interferon [IFN]-γ, interleukin [IL]-8, IL-1β, IL-6, and IL-17).

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Angiotensin II type 1 receptor (AT1R) antibody has been linked to poor allograft outcomes in adult kidney transplantation. However, its clinical consequences in children are unknown. To study this, we examined the relationship of AT1R antibody with clinical outcomes, biopsy findings, inflammatory cytokines, and HLA donor-specific antibodies (DSA) in a cohort of pediatric renal transplant recipients.

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Pediatric sHKTx has become an effective therapy for patients with combined cardiac and renal failure. Often, these patients develop human leukocyte antigen antibodies from their previous allografts and are therefore more difficult to re-transplant. We describe the largest case series of a predominantly sensitized pediatric sHKTx with emphasis on medical management and patient outcomes.

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