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  1. Article: Study of 52 patients with idiopathic aortitis from a cohort of 1,204 surgical cases.

    Rojo-Leyva, F / Ratliff, N B / Cosgrove, D M / Hoffman, G S

    Arthritis and rheumatism

    2000  Volume 43, Issue 4, Page(s) 901–907

    Abstract: Objective: To determine 1) the frequency of idiopathic aortitis in a large surgical cohort, 2) how often aortitis was associated with a systemic disease, and 3) whether the findings of aortitis in resected specimens predicted future occurrences of ... ...

    Abstract Objective: To determine 1) the frequency of idiopathic aortitis in a large surgical cohort, 2) how often aortitis was associated with a systemic disease, and 3) whether the findings of aortitis in resected specimens predicted future occurrences of clinically apparent vascular injury due to vasculitis.
    Methods: Retrospective chart and pathology review of 1,204 aortic surgical specimens that were gathered over a period of 20 years at a tertiary care medical center. A standardized database was used to compare features of aortitis patients with those of controls in whom inflammation was not present.
    Results: Among 1,204 aortic specimens, 52 (4.3%) were clinically and pathologically classified as idiopathic aortitis. Sixty-seven percent of patients with idiopathic aortitis were women. In 96% of idiopathic aortitis patients with aneurysm formation, aortitis was present only in the thoracic aorta. Among 383 thoracic aortic aneurysms, 12% had idiopathic inflammatory features. In 96% of patients with idiopathic aortitis, symptoms of systemic illness had not been present at the time of surgery. In 31%, aortitis was associated with a remote history of vasculitis and a variety of other systemic disorders. During a mean followup period of 41.2 months, new aneurysms were identified among 6 of 25 patients who were not treated with glucocorticoids. None were identified among 11 patients who were treated with glucocorticoids (mean followup 35.5 months).
    Conclusion: The frequency of idiopathic aortitis in a large surgical cohort was found to be 4.3%. Thoracic aorta aneurysm formation, in the absence of systemic illness, was the most common manifestation. In the setting of a cardiovascular surgery practice, aortitis may first become apparent only after pathologic evaluation of excised specimens. The appropriate medical treatment for patients with incidentally discovered aortitis is not known. Because 17% of our patients subsequently developed new aneurysms, we suggest that it would be prudent for patients with idiopathic aortitis identified at the time of surgery to be periodically evaluated for recurrent or persistent disease.
    MeSH term(s) Adult ; Aged ; Aged, 80 and over ; Aorta/pathology ; Aorta/surgery ; Aortic Aneurysm/surgery ; Aortitis/etiology ; Cohort Studies ; Female ; Humans ; Male ; Middle Aged ; Retrospective Studies
    Language English
    Publishing date 2000-04
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 127294-9
    ISSN 1529-0131 ; 0004-3591 ; 2326-5191
    ISSN (online) 1529-0131
    ISSN 0004-3591 ; 2326-5191
    DOI 10.1002/1529-0131(200004)43:4<901::AID-ANR23>3.0.CO;2-U
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article: Phenotypic changes in monocytes and alveolar macrophages in patients with acquired immunodeficiency syndrome (AIDS) and AIDS-related complex (ARC).

    Roy, G / Rojo, N / Leyva-Cobián, F

    Journal of clinical & laboratory immunology

    1987  Volume 23, Issue 3, Page(s) 135–141

    Abstract: The expression of Class II histocompatibility antigens (HLA-DR and HLA-DQ), leukocyte function associated antigen (LFA-1) and complement receptor type 3 (CR3) on peripheral blood monocytes and alveolar macrophages (M phi) from patients with acquired ... ...

    Abstract The expression of Class II histocompatibility antigens (HLA-DR and HLA-DQ), leukocyte function associated antigen (LFA-1) and complement receptor type 3 (CR3) on peripheral blood monocytes and alveolar macrophages (M phi) from patients with acquired immune deficiency syndrome (AIDS) and AIDS-related complex (ARC) and age-matched controls was studied. The percentage of HLA-DR+ monocytes from 4 AIDS patients and 12 ARC patients was 52.4 +/- 16.4% (p less than 0.05) and 50.2+21.2% (p less than 0.01) respectively (Controls, 75.4 +/- 12.6%). HLA-DQ expression in monocytes from one AIDS and two ARC patients was 31%, 39% and 18% respectively (in normal individuals, DQ was expressed by approximately 40% monocytes). HLA-DR and HLA-DQ expression on alveolar M phi from one AIDS patient and 2 ARC patients were also depressed. CR3 was expressed by 65.9 +/- 11.1% monocytes from normal controls. Patients with AIDS had a slightly, but significantly lower, proportion of CR3+ monocytes (43.9 +/- 15.9%, p less than 0.05) (in normal controls, CR3 monocytes were 65.9 +/- 11.1%). However, monocytes from ARC patients and alveolar M phi from one AIDS and 2 ARC patients expressed CR3 in a normal range. LFA-1 was significantly depressed in monocytes from both AIDS (45.7 +/- 1%, p less than 0.005) and ARC (57.5 +/- 10.9%, p less than 0.005) patients in comparison with controls (87.4 +/- 8.7%). Only alveolar M phi from one AIDS patient could be studied for LFA-1 antigen and this was into the normal range.(ABSTRACT TRUNCATED AT 250 WORDS)
    MeSH term(s) AIDS-Related Complex/immunology ; Acquired Immunodeficiency Syndrome/immunology ; Adolescent ; Adult ; Antigens, Surface/analysis ; Cells, Cultured ; HLA-DQ Antigens/analysis ; HLA-DR Antigens/analysis ; Humans ; Interferon-gamma/pharmacology ; Lymphocyte Function-Associated Antigen-1 ; Lymphokines/pharmacology ; Macrophages/immunology ; Male ; Monocytes/immunology ; Phenotype ; Pulmonary Alveoli/immunology ; Receptors, Complement/analysis ; Time Factors
    Chemical Substances Antigens, Surface ; HLA-DQ Antigens ; HLA-DR Antigens ; Lymphocyte Function-Associated Antigen-1 ; Lymphokines ; Receptors, Complement ; Interferon-gamma (82115-62-6)
    Language English
    Publishing date 1987-07
    Publishing country Scotland
    Document type Journal Article
    ZDB-ID 423742-0
    ISSN 0141-2760
    ISSN 0141-2760
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article: Evolution and characterization of renal immune complexes deposition in mice bearing a syngeneic tumor.

    Leyva-Cobian, F / Lamoureux, G / Rojo-Ortega, J M

    Renal physiology

    1981  Volume 4, Issue 2-3, Page(s) 79–84

    Abstract: Immune complex deposition along the glomerular basement membrane (GBM) and in the mesangium in C57BL/6 mice bearing a transplantable syngeneic B16 melanoma is described. By immunofluorescence studies, IgG, IgM and C3 were found deposited along the GBM ... ...

    Abstract Immune complex deposition along the glomerular basement membrane (GBM) and in the mesangium in C57BL/6 mice bearing a transplantable syngeneic B16 melanoma is described. By immunofluorescence studies, IgG, IgM and C3 were found deposited along the GBM and the mesangium. Electron microscopy showed electron-dense deposits localized in GBM and mesangial matrix. The intensity of the immune complexes deposited in the glomeruli was correlated with progression of tumor size. In order to study the evolution of deposits, a monitoring protocol was designed. One group consisted of mice bearing B16 melanoma. They showed decreased immune complex deposition after tumor removal. Control mice inoculated with saline did not present immune complex deposition. Sham-operated mice bearing B16 melanoma showed progressive renal deposition of immune complexes. Immune complexes were made up of tumor antigen and antimelanoma antibodies and were partial characterized by elution, immunofluorescence and immunodiffusion procedures. Antimelanoma antibodies eluted from kidneys of tumor-bearing mice were of IgG class and reacted with a soluble product extracted from B16 melanoma cells.
    MeSH term(s) Animals ; Antibodies, Neoplasm/immunology ; Antigen-Antibody Complex/analysis ; Basement Membrane/analysis ; Basement Membrane/immunology ; Complement C3/analysis ; Fluorescent Antibody Technique ; Immunoglobulin G/analysis ; Immunoglobulin M/analysis ; Kidney Glomerulus/blood supply ; Kidney Glomerulus/immunology ; Male ; Melanoma/immunology ; Mice ; Mice, Inbred C57BL ; Microscopy, Electron ; Neoplasm Transplantation ; Neoplasms, Experimental/immunology
    Chemical Substances Antibodies, Neoplasm ; Antigen-Antibody Complex ; Complement C3 ; Immunoglobulin G ; Immunoglobulin M
    Language English
    Publishing date 1981
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 558484-x
    ISSN 0378-5858 ; 0300-3434
    ISSN 0378-5858 ; 0300-3434
    DOI 10.1159/000172809
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Evolution and Characterization of Renal Immune Complexes Deposition in Mice Bearing a Syngeneic Tumor

    Leyva-Cobian, F. / Lamoureux, G. / Rojo-Ortega, J. M.

    Kidney and Blood Pressure Research

    1981  Volume 4, Issue 2-3, Page(s) 79–84

    Abstract: Immune complex deposition along the glomerular basement membrane (GBM) and in the mesangium in C57BL/6 mice bearing a transplantable syngeneic B16 melanoma is described. By immunofluorescence studies, IgG, IgM and C3 were found deposited along the GBM ... ...

    Abstract Immune complex deposition along the glomerular basement membrane (GBM) and in the mesangium in C57BL/6 mice bearing a transplantable syngeneic B16 melanoma is described. By immunofluorescence studies, IgG, IgM and C3 were found deposited along the GBM and the mesangium. Electron microscopy showed electron-dense deposits localized in GBM and mesangial matrix. The intensity of the immune complexes deposited in the glomeruli was correlated with progression of tumor size. In order to study the evolution of deposits, a monitoring protocol was designed. One group consisted of mice bearing B16 melanoma. They showed decreased immune complex deposition after tumor removal. Control mice inoculated with saline did not present immune complex deposition. Sham-operated mice bearing B16 melanoma showed progressive renal deposition of immune complexes. Immune complexes were made up of tumor antigen and antimelanoma antibodies and were partially characterized by elution, immunofluorescence and immuno-diffusion procedures. Antimelanoma antibodies eluted from kidneys of tumor-bearing mice were of IgG class and reacted with a soluble product extracted from B16 melanoma cells.
    Language English
    Publisher S. Karger AG
    Publishing place Basel
    Publishing country Switzerland
    Document type Article ; Online
    ZDB-ID 1326018-2
    ISSN 1423-0143 ; 1420-4096 ; 1420-4096
    ISSN (online) 1423-0143
    ISSN 1420-4096
    DOI 10.1159/000172809
    Database Karger publisher's database

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