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  1. Article ; Online: Quality of life in pediatric chronic kidney disease: expectations and responsibilities.

    Wesseling-Perry, Katherine

    Pediatric nephrology (Berlin, Germany)

    2023  Volume 38, Issue 12, Page(s) 3867–3869

    MeSH term(s) Humans ; Child ; Quality of Life ; Motivation ; Renal Insufficiency, Chronic/therapy ; Social Behavior
    Language English
    Publishing date 2023-07-06
    Publishing country Germany
    Document type Editorial ; Comment
    ZDB-ID 631932-4
    ISSN 1432-198X ; 0931-041X
    ISSN (online) 1432-198X
    ISSN 0931-041X
    DOI 10.1007/s00467-023-06070-1
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Recurrent disease after pediatric renal transplantation.

    Nayak, Anjali / Ettenger, Robert / Wesseling-Perry, Katherine

    Pediatric transplantation

    2024  Volume 28, Issue 3, Page(s) e14676

    Abstract: Background: Recurrent disease after kidney transplant remains an important cause of allograft failure, accounting for 7-8% of graft loss and ranking as the fifth most common cause of allograft loss in the pediatric population. Although the ... ...

    Abstract Background: Recurrent disease after kidney transplant remains an important cause of allograft failure, accounting for 7-8% of graft loss and ranking as the fifth most common cause of allograft loss in the pediatric population. Although the pathophysiology of many recurrent diseases is incompletely understood, recent advances in basic science and therapeutics are improving outcomes and changing the course of several of these conditions.
    Methods: Review of the literature.
    Results: We discuss the diagnosis and management of recurrent disease.
    Conclusion: We highlight new insights into the pathophysiology and treatment of post-transplant primary hyperoxaluria, focal segmental glomerulosclerosis, immune complex glomerulonephritis, C3 glomerulopathy, lupus nephritis, atypical hemolytic uremic syndrome, and IgA nephropathy.
    MeSH term(s) Humans ; Kidney Transplantation/adverse effects ; Recurrence ; Child ; Postoperative Complications/etiology ; Postoperative Complications/diagnosis ; Kidney Diseases/etiology ; Kidney Diseases/surgery
    Language English
    Publishing date 2024-04-22
    Publishing country Denmark
    Document type Journal Article ; Review
    ZDB-ID 1390284-2
    ISSN 1399-3046 ; 1397-3142
    ISSN (online) 1399-3046
    ISSN 1397-3142
    DOI 10.1111/petr.14676
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Chromatin accessibility and epigenetic deoxyribose nucleic acid (DNA) modifications in chronic kidney disease (CKD) osteoblasts: a study of bone and osteoblasts from pediatric patients with CKD.

    Martin, Aline / Kawaguchi, Riki / Wang, Qing / Salusky, Isidro B / Pereira, Renata C / Wesseling-Perry, Katherine

    JBMR plus

    2024  Volume 8, Issue 1, Page(s) ziad015

    Abstract: Maturation defects are intrinsic features of osteoblast lineage cells in CKD patients. These defects persist ex vivo, suggesting that CKD induces epigenetic changes in bone cells. To gain insights into which signaling pathways contribute to CKD-mediated, ...

    Abstract Maturation defects are intrinsic features of osteoblast lineage cells in CKD patients. These defects persist ex vivo, suggesting that CKD induces epigenetic changes in bone cells. To gain insights into which signaling pathways contribute to CKD-mediated, epigenetically driven, impairments in osteoblast maturation, we characterized RNA expression and DNA methylation patterns by RNA-Seq and MethylationEpic in primary osteoblasts from nine adolescent and young adult dialysis patients with end-stage kidney disease and three healthy references. ATAC-Seq was also performed on a subset of osteoblasts. Bone matrix protein expression was extracted from the iliac crest and evaluated by proteomics. Gene set enrichment analysis was used to establish signaling pathways consistently altered in chromatin accessibility, DNA methylation, and RNA expression patterns. Single genes were suppressed in primary osteoblasts using shRNA and mineralization characterized in vitro. The effect of nuclear factor of activated T cells (NFAT) signaling suppression was also assessed using 3-(4,5-dimethylthiazol-2-yl)-5-(3-carboxymethoxyphenyl)-2-(4-sulfophenyl)-2H-tetrazolium (MTS) incorporation. We found that signaling pathways critical for osteoblast differentiation were strongly downregulated in CKD osteoblasts. Gene set enrichment analysis identified highly significant methylation changes, differential chromatin accessibility, and altered RNA expression in NFAT signaling targets. NFAT inhibition reduced osteoblast proliferation. Combined analysis of osteoblast RNA expression and whole bone matrix composition identified 13 potential ligand-receptor pairs. In summary, epigenetic changes in CKD osteoblasts associate with altered expression of multiple osteoblast genes and signaling pathways. An increase in NFAT signaling may play a role in impaired CKD osteoblast maturation. Epigenetic changes also associate with an altered bone matrix, which may contribute to bone fragility. Further studies are necessary to elucidate the pathways affected by these genetic alterations since elucidating these pathways will be vital to correcting the underlying biology of bone disease in the CKD population.
    Language English
    Publishing date 2024-01-04
    Publishing country England
    Document type Journal Article
    ISSN 2473-4039
    ISSN (online) 2473-4039
    DOI 10.1093/jbmrpl/ziad015
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Comparison of estimated GFR using cystatin C versus creatinine in pediatric kidney transplant recipients.

    Pizzo, Helen / Nguyen, John / Schwartz, George J / Wesseling-Perry, Katherine / Ettenger, Robert / Chambers, Eileen Tsai / Weng, Patricia

    Pediatric nephrology (Berlin, Germany)

    2024  

    Abstract: Background: An accurate, rapid estimate of glomerular filtration rate (GFR) in kidney transplant patients affords early detection of transplant deterioration and timely intervention. This study compared the performance of serum creatinine (Cr) and ... ...

    Abstract Background: An accurate, rapid estimate of glomerular filtration rate (GFR) in kidney transplant patients affords early detection of transplant deterioration and timely intervention. This study compared the performance of serum creatinine (Cr) and cystatin C (CysC)-based GFR equations to measured GFR (mGFR) using iohexol among pediatric kidney transplant recipients.
    Methods: CysC, Cr, and mGFR were obtained from 45 kidney transplant patients, 1-18 years old. Cr- and CysC-estimated GFR (eGFR) was compared against mGFR using the Cr-based (Bedside Schwartz, U25-Cr), CysC-based (Gentian CysC, CAPA, U25-CysC), and Cr-CysC combination (CKiD Cr-CysC, U25 Cr-CysC) equations in terms of bias, precision, and accuracy. Bland-Altman plots assessed the agreement between eGFR and mGFR. Secondary analyses evaluated the formulas in patients with biopsy-proven histological changes, and K/DOQI CKD staging.
    Results: Bias was small with Gentian CysC (0.1 ml/min/1.73 m
    Conclusions: In this small cohort, CysC-based equations with or without Cr may have better bias, precision, and accuracy in predicting GFR.
    Language English
    Publishing date 2024-03-01
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 631932-4
    ISSN 1432-198X ; 0931-041X
    ISSN (online) 1432-198X
    ISSN 0931-041X
    DOI 10.1007/s00467-024-06316-6
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Osteocyte dysfunction and renal osteodystrophy: not just calcium and phosphorus anymore.

    Wesseling-Perry, Katherine

    Kidney international

    2017  Volume 91, Issue 6, Page(s) 1276–1278

    Abstract: In an important new cross-sectional analysis in this issue, Graciolli and colleagues present bone data from 148 adult patients across the spectrum of chronic kidney disease that confirm that disrupted osteocyte function and abnormal bone histology ... ...

    Abstract In an important new cross-sectional analysis in this issue, Graciolli and colleagues present bone data from 148 adult patients across the spectrum of chronic kidney disease that confirm that disrupted osteocyte function and abnormal bone histology characterize all stages of chronic kidney disease and suggest that osteocytic Wnt signaling and osteocyte maturation may play a role in the pathogenesis of renal osteodystrophy. These concepts may alter how the skeletal, cardiovascular, and infectious complications of chronic kidney disease are managed.
    Language English
    Publishing date 2017-06
    Publishing country United States
    Document type Journal Article
    ZDB-ID 120573-0
    ISSN 1523-1755 ; 0085-2538
    ISSN (online) 1523-1755
    ISSN 0085-2538
    DOI 10.1016/j.kint.2017.02.026
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Gut microbiome, parathyroid hormone, and bone.

    Kermgard, Elizabeth / Chawla, Nadine Khouzam / Wesseling-Perry, Katherine

    Current opinion in nephrology and hypertension

    2021  Volume 30, Issue 4, Page(s) 418–423

    Abstract: Purpose of review: Microorganisms in the gut (the 'microbiome') and the metabolites they produce (the 'metabolome') regulate bone mass through interactions between parathyroid hormone (PTH), the immune system, and bone. This review summarizes these data ...

    Abstract Purpose of review: Microorganisms in the gut (the 'microbiome') and the metabolites they produce (the 'metabolome') regulate bone mass through interactions between parathyroid hormone (PTH), the immune system, and bone. This review summarizes these data and details how this physiology may relate to CKD-mediated bone disease.
    Recent findings: The actions of PTH on bone require microbial metabolite activation of immune cells. Butyrate is necessary for CD4+ T-cell differentiation, T-reg cell expansion and CD8+ T-cell secretion of the bone-forming factor Wnt10b ligand. By contrast, mice colonized with segmented filamentous bacteria exhibit an expansion of gut Th17 cells and continuous PTH infusion increases the migration of Th17 cells to the bone marrow, contributing to bone resorption. In the context of CKD, a modified diet, frequent antibiotic therapy, altered intestinal mobility, and exposure to multiple medications together contribute to dysbiosis; the implications for an altered microbiome and metabolome on the pathogenesis of renal osteodystrophy and its treatment have not been explored.
    Summary: As dysregulated interactions between PTH and bone ('skeletal resistance') characterize CKD, the time is ripe for detailed, mechanistic studies into the role that gut metabolites may play in the pathogenesis of CKD-mediated bone disease.
    MeSH term(s) Animals ; Bone and Bones ; Chronic Kidney Disease-Mineral and Bone Disorder ; Dysbiosis ; Gastrointestinal Microbiome ; Humans ; Mice ; Parathyroid Hormone
    Chemical Substances Parathyroid Hormone
    Language English
    Publishing date 2021-05-24
    Publishing country England
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Review
    ZDB-ID 1151092-4
    ISSN 1473-6543 ; 1535-3842 ; 1062-4813 ; 1062-4821
    ISSN (online) 1473-6543 ; 1535-3842
    ISSN 1062-4813 ; 1062-4821
    DOI 10.1097/MNH.0000000000000714
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: The Authors Reply.

    Wesseling-Perry, Katherine

    Kidney international

    2015  Volume 88, Issue 3, Page(s) 640–641

    MeSH term(s) Bone and Bones/physiopathology ; Calcification, Physiologic ; Cell Proliferation ; Female ; Gene Expression ; Humans ; Kidney Failure, Chronic ; Male ; Osteoblasts/physiology
    Language English
    Publishing date 2015-09
    Publishing country United States
    Document type Comment ; Letter
    ZDB-ID 120573-0
    ISSN 1523-1755 ; 0085-2538
    ISSN (online) 1523-1755
    ISSN 0085-2538
    DOI 10.1038/ki.2015.219
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Racial-ethnic diversity in ambulatory blood pressure monitoring in children with chronic kidney disease.

    Pagi, Reut / Yadin, Ora / Wesseling-Perry, Katherine / Norris, Keith / Laster, Marciana Lee

    Pediatric nephrology (Berlin, Germany)

    2022  Volume 38, Issue 3, Page(s) 819–827

    Abstract: Background: Black adults with chronic kidney disease (CKD) have higher rates of hypertension as compared to White adults with CKD. Little is known of how race and ethnicity associate with the prevalence of hypertension in pediatric CKD patients. The aim ...

    Abstract Background: Black adults with chronic kidney disease (CKD) have higher rates of hypertension as compared to White adults with CKD. Little is known of how race and ethnicity associate with the prevalence of hypertension in pediatric CKD patients. The aim was to compare ambulatory blood pressure monitoring (ABPM) results for patients with CKD enrolled in the Chronic Kidney Disease in Children (CKiD) study across racial-ethnic groups.
    Methods: Patients from the CKiD study who identified as non-Hispanic White, non-Hispanic Black, or Hispanic were included to analyze differences in ABPM results across these racial-ethnic groups. The outcomes were fitted using 3 progressively adjusted models.
    Results: This study included 501 CKiD participants with at least one successful ABPM study. Compared to White participants, Black participants had 4.2 mmHg higher mean sleep systolic blood pressure and 2.7 mmHg higher mean sleep diastolic blood pressure (p = 0.001 and p = 0.004, respectively). Additionally, Black participants had higher odds of abnormal wake systolic load (OR 1.88, 1.21-2.91, p = 0.005), wake diastolic load (OR 1.68, 1.03-2.73, p = 0.04), sleep systolic load (OR 2.19, 1.36-3.5, p = 0.001), sleep diastolic load (OR 2.01, 1.28-3.15, p = 0.002), systolic non-dipping (OR 2.02, 1.31-3.10, p = 0.001), and diastolic non-dipping (OR 2.69, 1.60-4.51, p < 0.001). Compared to White participants, Hispanic participants demonstrated only a lower sleep diastolic load (OR 0.54, 0.31-0.95, p = 0.03).
    Conclusions: Black children with CKD have higher absolute nocturnal blood pressures and higher rates of abnormal dipping. Further studies are needed to determine the etiology of these differences and the clinical implications of racial-ethnic differences in ABPM outcomes within the pediatric CKD population. A higher resolution version of the Graphical abstract is available as Supplementary information.
    MeSH term(s) Adult ; Humans ; Child ; Blood Pressure Monitoring, Ambulatory/methods ; Circadian Rhythm ; Hypertension/diagnosis ; Blood Pressure ; Renal Insufficiency, Chronic/diagnosis
    Language English
    Publishing date 2022-07-08
    Publishing country Germany
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't
    ZDB-ID 631932-4
    ISSN 1432-198X ; 0931-041X
    ISSN (online) 1432-198X
    ISSN 0931-041X
    DOI 10.1007/s00467-022-05659-2
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Defective skeletal mineralization in pediatric CKD.

    Wesseling-Perry, Katherine

    Current osteoporosis reports

    2015  Volume 13, Issue 2, Page(s) 98–105

    Abstract: Although traditional diagnosis and treatment of renal osteodystrophy focused on changes in bone turnover, current data demonstrate that abnormalities in skeletal mineralization are also prevalent in pediatric chronic kidney disease (CKD) and likely ... ...

    Abstract Although traditional diagnosis and treatment of renal osteodystrophy focused on changes in bone turnover, current data demonstrate that abnormalities in skeletal mineralization are also prevalent in pediatric chronic kidney disease (CKD) and likely contribute to skeletal morbidities that continue to plague this population. It is now clear that alterations in osteocyte biology, manifested by changes in osteocytic protein expression, occur in early CKD before abnormalities in traditional measures of mineral metabolism are apparent and may contribute to defective skeletal mineralization. Current treatment paradigms advocate the use of 1,25(OH)2vitamin D for the control of secondary hyperparathyroidism; however, these agents fail to correct defective skeletal mineralization and may exacerbate already altered osteocyte biology. Further studies are critically needed to identify the initial trigger for abnormalities of skeletal mineralization as well as the potential effects that current therapeutic options may have on osteocyte biology and bone mineralization.
    MeSH term(s) Adolescent ; Bone and Bones/drug effects ; Bone and Bones/metabolism ; Bone and Bones/pathology ; Calcification, Physiologic/drug effects ; Calcification, Physiologic/physiology ; Calcimimetic Agents/pharmacology ; Calcimimetic Agents/therapeutic use ; Child ; Growth Hormone/pharmacology ; Growth Hormone/therapeutic use ; Humans ; Osteocytes/metabolism ; Osteocytes/pathology ; Osteogenesis/drug effects ; Renal Insufficiency, Chronic/complications ; Renal Insufficiency, Chronic/physiopathology ; Rickets/drug therapy ; Rickets/etiology ; Rickets/physiopathology ; Sevelamer/pharmacology ; Sevelamer/therapeutic use ; Vitamin D/analogs & derivatives ; Vitamin D/pharmacology ; Vitamin D/therapeutic use
    Chemical Substances Calcimimetic Agents ; Vitamin D (1406-16-2) ; 1,25-dihydroxyvitamin D (66772-14-3) ; Growth Hormone (9002-72-6) ; Sevelamer (9YCX42I8IU)
    Language English
    Publishing date 2015-04
    Publishing country United States
    Document type Journal Article ; Review
    ZDB-ID 2186581-4
    ISSN 1544-2241 ; 1544-1873
    ISSN (online) 1544-2241
    ISSN 1544-1873
    DOI 10.1007/s11914-015-0253-4
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Pathophysiology and treatment of cardiovascular disease in pediatric chronic kidney disease.

    Khouzam, Nadine / Wesseling-Perry, Katherine

    Pediatric nephrology (Berlin, Germany)

    2017  Volume 34, Issue 1, Page(s) 1–10

    Abstract: Life expectancy in patients with all stages of chronic kidney disease (CKD) falls far short of that in the general population. Cardiovascular disease is the leading cause of mortality in pediatric patients with CKD. In contrast to the intimal ... ...

    Abstract Life expectancy in patients with all stages of chronic kidney disease (CKD) falls far short of that in the general population. Cardiovascular disease is the leading cause of mortality in pediatric patients with CKD. In contrast to the intimal atherosclerotic lesions that characterize cardiovascular disease in the general population, vascular endothelial dysfunction, medial arterial calcification, and cardiac dysfunction contribute to cardiovascular pathological conditions in CKD. The pathogenesis of these lesions, the origins of which can be identified in the absence of traditional cardiovascular risk factors, is incompletely understood. CKD-mediated vascular calcification in CKD is characterized by a transition of vascular smooth muscle cells to an osteoblast-like phenotype and altered bone and mineral metabolism are strongly linked to progressive cardiovascular disease in this population. Renal osteodystrophy therapies, including phosphate binders, vitamin D analogs, and calcimimetics, have an impact on the progression of cardiovascular disease. However, cardiovascular disease has its origins before the development of secondary hyperparathyroidism, and optimal therapeutic regimens that minimize cardiac dysfunction, vascular calcification, and early mortality remain to be defined.
    MeSH term(s) Age Factors ; Arteries/pathology ; Bone and Bones/metabolism ; Calcimimetic Agents/therapeutic use ; Cardiovascular Agents/therapeutic use ; Cardiovascular Diseases/drug therapy ; Cardiovascular Diseases/etiology ; Cardiovascular Diseases/pathology ; Chelating Agents/therapeutic use ; Child ; Chronic Kidney Disease-Mineral and Bone Disorder/drug therapy ; Chronic Kidney Disease-Mineral and Bone Disorder/etiology ; Chronic Kidney Disease-Mineral and Bone Disorder/pathology ; Disease Progression ; Endothelium, Vascular/pathology ; Humans ; Kidney Transplantation ; Minerals/metabolism ; Renal Insufficiency, Chronic/complications ; Renal Insufficiency, Chronic/metabolism ; Renal Insufficiency, Chronic/therapy ; Tunica Media/pathology ; Vascular Calcification/drug therapy ; Vascular Calcification/etiology ; Vascular Calcification/pathology ; Vitamin D/therapeutic use
    Chemical Substances Calcimimetic Agents ; Cardiovascular Agents ; Chelating Agents ; Minerals ; Vitamin D (1406-16-2)
    Language English
    Publishing date 2017-09-22
    Publishing country Germany
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't ; Review
    ZDB-ID 631932-4
    ISSN 1432-198X ; 0931-041X
    ISSN (online) 1432-198X
    ISSN 0931-041X
    DOI 10.1007/s00467-017-3798-x
    Database MEDical Literature Analysis and Retrieval System OnLINE

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