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BACKGROUND The involvement of mitogen-activated protein kinase (MAPK) in human diabetic nephropathy has not been fully investigated. METHODS The presence of cells positive for the phosphorylated MAPK family (phosphorylated extracellular signal-regulated kinase [p-ERK], phosphorylated p38MAPK [p-p38MAPK]) was investigated immunohistochemically in kidneys(More)
Two cases of leukemia were treated successfully with apheresis for delayed recovery of erythropoiesis due to antibody-mediated red cell aplasia after ABO-mismatched bone marrow transplantation (BMT). A 25-year-old female (ABO group O) underwent BMT from her brother (group A). Immunoadsorption using Biosynsorb A performed on day 146 after BMT followed by(More)
BACKGROUND/AIMS We examined whether regulation of hepcidin-25 by short- or long-acting recombinant human erythropoietin (rhEPO) is dependent on ferritin and predicts the response to rhEPO in hemodialysis (HD) patients. METHODS Two studies with rhEPO were performed in 9 HD patients with a 2-year interval. Serum hepcidin-25 was measured at 0-18 h after(More)
BACKGROUND We previously described that monocyte chemoattractant protein-1 (MCP-1) plays an important role in progressive glomerular and interstitial damage in inflammatory renal diseases. However, the expression of MCP-1 in diabetic nephropathy remains to be investigated. METHODS We examined whether locally expressed MCP-1 participates in human diabetic(More)
Monocytes/macrophages (M phi) have been implicated in the pathogenesis of lupus nephritis (LN), but the precise molecular mechanism of recruitment and activation of M phi in LN remains unclear. To clarify the involvement of chemotactic cytokines (chemokines) in those events, we measured levels of monocyte chemotactic and activating factor (MCAF, also termed(More)
BACKGROUND The precise molecular mechanisms of macrophage (Mphi) recruitment and activation in crescentic glomerulonephritis remain to be investigated. We hypothesized that locally produced macrophage inflammatory protein (MIP)-1alpha and monocyte chemoattractant protein (MCP)-1 via the chemokine receptors participate in the pathophysiology of human(More)
We investigated the presence of CCR1- and CCR5-positive cells immunohistochemically in the kidneys of 38 patients with several renal diseases, including 13 crescentic glomerulonephritis patients. In addition, we determined cell phenotypes of CCR1- and CCR5-positive cells using a dual immunostaining technique. Urinary levels of their ligands, for CCR1 and(More)
Sir, autosomal dominant polycystic kidney disease (ADPKD) is known to occur in approximately 1 in 500 to 1 in 1000 live births, and responsible genes have been identified [2]. Multiple hepatic cysts are a major manifestation in ADPKD [2], and biliary microhamartomas (BMHs) are also frequently observed in polycystic liver, being considered to be a precursor(More)
Expression of MHC-class II molecules (HLA-DR and -DQ), serum gamma-interferon (gamma-IFN) and soluble interleukin-2 receptor (sIL-2R) levels were studied in 35 Japanese patients with lupus nephritis (LN) to clarify intraglomerular cellular activation and cytokine involvement in human LN. In 11 normal kidney specimens, HLA-DR(Ia1) was noted in glomerular(More)
BACKGROUND/AIM To evaluate the importance of fractalkine, a novel member of the CX3C chemokine, and natural killer (NK) cells in human crescentic glomerulonephritis, we determined the presence of fractalkine in the diseased kidneys immunohistochemically, and the correlation among fractalkine, NK cells and the degree of renal damage. METHODS Twenty-three(More)