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  1. Artikel ; Online: Autosomal dominant chronic tubulointerstitial nephropathy: do not forget amyloidosis.

    Bridoux, Frank / Nasr, Samih H

    Kidney international

    2024  Band 105, Heft 4, Seite(n) 666–669

    Abstract: Amyloidosis is a rare cause of inherited kidney disease, with most variants responsible for prominent glomerular involvement. In this issue, Kmochová et al. reported the first description of autosomal dominant medullary amyloidosis due to apolipoprotein ... ...

    Abstract Amyloidosis is a rare cause of inherited kidney disease, with most variants responsible for prominent glomerular involvement. In this issue, Kmochová et al. reported the first description of autosomal dominant medullary amyloidosis due to apolipoprotein A4 variants, resulting in slowly progressive chronic kidney disease with minimal proteinuria. Combining next-generation sequencing with histopathological studies incorporating Congo red staining and mass spectrometry should be considered in the diagnostic workup of hereditary tubulointerstitial disorders not identified after routine genetic testing.
    Mesh-Begriff(e) Humans ; Nephritis, Interstitial/diagnosis ; Nephritis, Interstitial/genetics ; Nephritis, Interstitial/complications ; Amyloidosis/diagnosis ; Amyloidosis/genetics ; Renal Insufficiency, Chronic/diagnosis ; Renal Insufficiency, Chronic/genetics ; Genetic Testing
    Sprache Englisch
    Erscheinungsdatum 2024-02-17
    Erscheinungsland United States
    Dokumenttyp Journal Article
    ZDB-ID 120573-0
    ISSN 1523-1755 ; 0085-2538
    ISSN (online) 1523-1755
    ISSN 0085-2538
    DOI 10.1016/j.kint.2024.01.025
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  2. Artikel ; Online: 2024 Update on Classification, Etiology, and Typing of Renal Amyloidosis.

    Leung, Nelson / Nasr, Samih H

    American journal of kidney diseases : the official journal of the National Kidney Foundation

    2024  

    Abstract: Amyloidosis is a protein folding disease that causes organ injuries and even death. In humans, 42 proteins are now known to cause amyloidosis. Some proteins become amyloidogenic as a result of a pathogenic variant as seen in hereditary amyloidoses. In ... ...

    Abstract Amyloidosis is a protein folding disease that causes organ injuries and even death. In humans, 42 proteins are now known to cause amyloidosis. Some proteins become amyloidogenic as a result of a pathogenic variant as seen in hereditary amyloidoses. In acquired forms of amyloidosis, the proteins form amyloid in their wild-type state. Four types (serum amyloid A (AA), transthyretin (ATTR), apolipoprotein AIV (ApoAIV), and beta-2-macroglobulin (AB2m)) of amyloid can occur either as acquired or as a mutant. Iatrogenic amyloid from injected protein medications have also been reported and AIL1RAP (anakinra) has been recently found to involve the kidney. Finally, the mechanism of how leukocyte cell derived chemotaxin-2 (ALECT2) forms amyloid remains unknown. This paper will review amyloids that involve the kidney and how they are typed.
    Sprache Englisch
    Erscheinungsdatum 2024-03-19
    Erscheinungsland United States
    Dokumenttyp Journal Article ; Review
    ZDB-ID 604539-x
    ISSN 1523-6838 ; 0272-6386
    ISSN (online) 1523-6838
    ISSN 0272-6386
    DOI 10.1053/j.ajkd.2024.01.530
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  3. Artikel ; Online: Monoclonal Immunoglobulin Crystalline Nephropathies.

    Nasr, Samih H / Sirac, Christophe / Leung, Nelson / Bridoux, Frank

    Kidney international

    2024  

    Abstract: Monoclonal immunoglobulin (MIg) crystalline nephropathies are rare lesions resulting from precipitation of MIgs in the kidney as crystalline inclusions. They can be categorized into lesions with predominant intracellular crystals (light chain [LC] ... ...

    Abstract Monoclonal immunoglobulin (MIg) crystalline nephropathies are rare lesions resulting from precipitation of MIgs in the kidney as crystalline inclusions. They can be categorized into lesions with predominant intracellular crystals (light chain [LC] proximal tubulopathy, LC crystal-storing histiocytosis, LC crystalline podocytopathy] and lesions with predominant extracellular crystals (crystalglobulin-induced nephropathy, crystalline variant of LC cast nephropathy). The majority of these lesions are associated with low tumor burden lymphoproliferative disorders, with the exception of crystalline variant of LC cast nephropathy. Extra-renal involvement (eg, skin, cornea) is frequent. Kidney biopsy is the cornerstone for diagnosis, which often requires electron microscopy and antigen retrieval. A thorough hematologic workup and evaluation of extra-renal involvement is mandatory for management. Treatment of these lesions is with clone-directed therapy, with the goal of achieving hematologic very good partial response or complete response which preserve or improve kidney function. In vitro and in vivo studies, animal models, and novel sequencing techniques have been invaluable tools to understand the pathogenesis of LC proximal tubulopathy, and can be utilized to increase our limited knowledge of the pathogenesis of the other MIg crystalline nephropathies. This review will provide an update on the pathology, renal and hematologic characteristics, extra-renal manifestations, prognosis, treatment, and pathogenesis of MIg crystalline nephropathies.
    Sprache Englisch
    Erscheinungsdatum 2024-05-07
    Erscheinungsland United States
    Dokumenttyp Journal Article
    ZDB-ID 120573-0
    ISSN 1523-1755 ; 0085-2538
    ISSN (online) 1523-1755
    ISSN 0085-2538
    DOI 10.1016/j.kint.2024.02.027
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  4. Artikel ; Online: Posaconazole-induced podocyte phospholipidosis.

    Gilani, Sarwat / Nasr, Samih H / Sethi, Sanjeev

    Kidney international

    2022  Band 101, Heft 3, Seite(n) 654

    Mesh-Begriff(e) Humans ; Lipidoses/chemically induced ; Podocytes ; Triazoles/adverse effects
    Chemische Substanzen Triazoles ; posaconazole (6TK1G07BHZ)
    Sprache Englisch
    Erscheinungsdatum 2022-02-01
    Erscheinungsland United States
    Dokumenttyp Case Reports
    ZDB-ID 120573-0
    ISSN 1523-1755 ; 0085-2538
    ISSN (online) 1523-1755
    ISSN 0085-2538
    DOI 10.1016/j.kint.2021.08.004
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  5. Artikel ; Online: Novel approaches beyond standard immunofluorescence for kidney biopsies.

    Santoriello, Dominick / Nasr, Samih H

    Current opinion in nephrology and hypertension

    2022  Band 31, Heft 3, Seite(n) 221–227

    Abstract: Purpose of review: Immunofluorescence on frozen tissue (IF-F) utilizing antibodies against immunoglobulin (Ig) heavy and light chains (IgA, IgG and IgM, kappa and lambda) and components of classical and alternative complement pathways (C1q, C3c and C4) ... ...

    Abstract Purpose of review: Immunofluorescence on frozen tissue (IF-F) utilizing antibodies against immunoglobulin (Ig) heavy and light chains (IgA, IgG and IgM, kappa and lambda) and components of classical and alternative complement pathways (C1q, C3c and C4) is the standard of renal pathology. However, conventional IF-F has limitations, particularly in nephropathies associated with organized and/or monoclonal Ig deposits. This review will discuss new applications of established methods beyond conventional IF-F and recent novel immunohistochemical methods.
    Recent findings: The combined application of paraffin immunofluorescence (IF-P) and IgG subtype staining excluded monotypic deposits in 62-66% of DNA J homolog subfamily B member 9-associated fibrillary glomerulonephritis (FGN) with apparent monotypic deposits by IF-F, whereas IF-P unmasks IgG deposits in a subset of cases of immunotactoid glomerulopathy. A novel IF technique targeting epitopes at the junction of the Ig heavy and light chains was introduced and unmasked polytypic deposits in a subset of glomerulonephritis with apparent monotypic deposits on IF-F. A recent study described the successful application of co-detection by indexing (CODEX) multiplexed IF to visualize more than a dozen target antigens within a single kidney tissue section. Finally, immunohistochemical protocols for detection of the novel antigens in membranous nephropathy have already entered the clinical practice of renal pathology.
    Summary: Novel ancillary techniques in renal pathology have the potential to significantly enhance our ability to evaluate renal biopsies.
    Mesh-Begriff(e) Biopsy ; Female ; Fluorescent Antibody Technique ; Glomerulonephritis ; Humans ; Immunoglobulin G/metabolism ; Kidney/metabolism ; Male ; Staining and Labeling
    Chemische Substanzen Immunoglobulin G
    Sprache Englisch
    Erscheinungsdatum 2022-03-07
    Erscheinungsland England
    Dokumenttyp Journal Article ; 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.0000000000000783
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  6. Artikel ; Online: COVID-19-Associated Collapsing Glomerulopathy: An Emerging Entity.

    Nasr, Samih H / Kopp, Jeffrey B

    Kidney international reports

    2020  Band 5, Heft 6, Seite(n) 759–761

    Schlagwörter covid19
    Sprache Englisch
    Erscheinungsdatum 2020-05-04
    Erscheinungsland United States
    Dokumenttyp Editorial ; Comment
    ISSN 2468-0249
    ISSN (online) 2468-0249
    DOI 10.1016/j.ekir.2020.04.030
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  7. Artikel ; Online: Atypical Antiglomerular Basement Membrane Nephritis Following Immune Checkpoint Inhibitor.

    Javaugue, Vincent / Watson, Myra J / Fervenza, Fernando C / Nasr, Samih H

    Kidney international reports

    2022  Band 7, Heft 8, Seite(n) 1913–1916

    Sprache Englisch
    Erscheinungsdatum 2022-05-03
    Erscheinungsland United States
    Dokumenttyp Case Reports
    ISSN 2468-0249
    ISSN (online) 2468-0249
    DOI 10.1016/j.ekir.2022.04.089
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  8. Artikel ; Online: Light chain crystalline podocytopathy.

    Nasr, Samih H / Conley, James / Said, Samar M

    Kidney international

    2021  Band 100, Heft 3, Seite(n) 713

    Mesh-Begriff(e) Heterocyclic Compounds ; Humans ; Kidney Diseases ; Podocytes
    Chemische Substanzen Heterocyclic Compounds
    Sprache Englisch
    Erscheinungsdatum 2021-08-22
    Erscheinungsland United States
    Dokumenttyp Case Reports
    ZDB-ID 120573-0
    ISSN 1523-1755 ; 0085-2538
    ISSN (online) 1523-1755
    ISSN 0085-2538
    DOI 10.1016/j.kint.2021.02.031
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  9. Artikel ; Online: Monoclonal Gammopathy of Renal Significance.

    Leung, Nelson / Bridoux, Frank / Nasr, Samih H

    The New England journal of medicine

    2021  Band 384, Heft 20, Seite(n) 1931–1941

    Mesh-Begriff(e) Humans ; Kidney/pathology ; Kidney/physiopathology ; Kidney Diseases/etiology ; Kidney Diseases/pathology ; Kidney Diseases/therapy ; Paraproteinemias/complications ; Paraproteinemias/diagnosis ; Paraproteinemias/pathology ; Paraproteinemias/therapy
    Sprache Englisch
    Erscheinungsdatum 2021-05-19
    Erscheinungsland United States
    Dokumenttyp Journal Article ; Review
    ZDB-ID 207154-x
    ISSN 1533-4406 ; 0028-4793
    ISSN (online) 1533-4406
    ISSN 0028-4793
    DOI 10.1056/NEJMra1810907
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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