Publications by authors named "Hideki Yotsueda"

Background: Fibronectin glomerulopathy is a rare, inherited, autosomal dominant, glomerular disease characterized by proteinuria, microscopic hematuria, hypertension, massive glomerular deposits of fibronectin, and slow progression to end-stage renal failure. Because the incident of fibronectin glomerulopathy is extremely low, the pathophysiology, genetic abnormalities, epidemiology, and mechanisms remain to be elucidated.

Case Presentation: We report a 21-year-old woman with fibronectin glomerulopathy, who had been diagnosed with persistent cloaca and congenital esophageal atresia at birth.

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A 64-year-old man undergoing chronic hemodialysis was admitted under a shock state with macrohematuria and fatigue lasting for two hours. A blood analysis revealed severe anemia. Computed tomography disclosed a large right-sided perirenal hematoma.

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Background: The peritoneum begins to undergo morphologic changes before the start of peritoneal dialysis (PD), particularly in diabetic patients. The present study was conducted to investigate the effects of diabetes on the peritoneum.

Methods: This study involved 17 patients who began receiving PD and had diabetes as an underlying disease (DM group), and 30 patients without diabetes who served as a control group (nonDM group).

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A 42-year-old man noted decreased urine output and visited our emergency department. He said that 3 days previously, he had gotten drunk and fallen down a set of stairs. Blood tests and abdominal contrast-enhanced computed tomography revealed no abnormalities.

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Background: Accumulating evidence suggests that mineralocorticoid receptor (MR) blockade effectively reduces proteinuria in diabetic nephropathy although the renin-angiotensin-aldosterone system is generally suppressed in diabetes. The present study was designed to confirm the antiproteinuric effect of MR blockade in diabetic rats and elucidate its mechanism.

Methods: The present study investigated whether MR blockade inhibits hyperglycemia-induced podocyte injury, focusing on the involvement of reactive oxygen species (ROS) production, in diabetic rats and cultured podocytes.

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Cyanotic congenital heart disease (CCHD) is a life-threatening cardiac defect that requires palliative or corrective surgery in early life. Major advances in medical and surgical management have resulted in the survival of CCHD patients to adulthood with or without corrective surgery, though some are at risk of development of end-stage renal disease (ESRD) due to cyanotic nephropathy (CN). There is little or no information on the initiation and maintenance of hemodialysis (HD) in such patients.

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Aims: The tumor suppressor protein p53 plays a critical role as a determinant of cell survival when cells are exposed to various toxic stresses, by preventing growth arrest, replication of damaged DNA, and apoptosis. A novel p53-dependent proapoptotic gene, Puma (p53 upregulated modulator of apoptosis) is thought to participate in this process. Recently, p53 was reported to play an essential role in cisplatin-induced renal tubular cell (RTC) death.

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A 61-year-old man had hyponatremia (serum Na 112 mmol/L), which was associated with disturbance of consciousness. Therefore, administration of hypertonic saline was commenced. Eventually he was diagnosed with the syndrome of inappropriate secretion of antidiuretic hormone (SIADH).

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The crucial involvement of podocyte failure in the development of hereditary focal segmental glomerulosclerosis (FSGS) indicates that specific podocyte proteins are closely related to podocyte function and biology. We hypothesized that podocyte failure, reflected by alteration of these proteins, leads not only to FSGS but also to resistance to steroid therapy. We investigated the association between expression of synaptopodin and glomerular epithelial protein 1 (GLEPP1) and response to corticosteroid therapy in primary FSGS.

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Neuroleptic malignant syndrome is a rare but potentially lethal, rare reaction to neuroleptics which is characterized by altered levels of consciousness, extrapyramidal effects, autonomic instability, hyperthermia, and elevated serum creatine phosphokinase levels. The most serious complication of neuroleptic malignant syndrome is acute renal failure. We investigated six cases of neuroleptic malignant syndrome associated with myoglobulinemic acute renal failure due to rhabdomyolysis and effect of hemodialysis or hemodiafiltration.

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Antiphospholipid syndrome (APS) is associated with arterial and venous thrombosis, pregnancy morbidity, and thrombocytopenia. Some APS patients develop rapid and disseminated microthrombosis and are known as having catastrophic APS or CAPS. We document here a case of CAPS in a patient who presented with various clinical symptoms and serious abnormalities of blood coagulation following initiation of hemodialysis after bilateral nephrectomy due to renal cancer.

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Background: Helper T (Th) cells are classified into Th1 and Th2 subsets based on cytokine production and the Th1/Th2 paradigm explains differences in inflammatory effector pathways in various human diseases. Membranous nephropathy (MN) is an immune complex disease associated with Th2 nephritogenic immune response. However, overproduction of interleukin (IL)-4, a principal Th2 cytokine, has not been demonstrated.

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