Publications by authors named "Tetsushi Nasu"

Background/aims: The present study aimed to evaluate the safety and efficacy of simeprevir-based triple therapy with reduced doses of pegylated interferon (PEG-IFN) and ribavirin for interferon (IFN) ineligible patients, such as elderly and/or cirrhotic patients, and to elucidate the factors contributing to a sustained virologic response (SVR).

Methods: One hundred IFN ineligible patients infected with genotype 1b hepatitis C virus (HCV) were treated. Simeprevir (100 mg) was given orally together with reduced doses of PEG-IFN-α 2a (90 μg), and ribavirin (200 mg less than the recommended dose).

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We present a rare case of adenocarcinoma arising from a heterotopic pancreas in the duodenum, and review the associated literature. A 62-year-old woman was admitted to our hospital, complaining of vomiting and epigastralgia. Imaging studies revealed advanced gastric cancer with a gastric outlet obstruction.

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We report the case of a 59-year-old female who developed facial edema together with hypoproteinemia. On the basis of (99m)Tc-human serum albumin scintigraphy and a1-antitrypsin clearance, she was diagnosed with protein-losing gastroenteropathy. Furthermore, she was diagnosed with Sjögren syndrome on the basis of eye and oral dryness, positive result with anti-SSA antibody, and salivary gland biopsy.

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We report here the case of an 83-year-old man who was treated for unconsciousness and hypoglycemia (39 mg/dL) accompanied by marked elevation of serum immunoreactive insulin (IRI) (4,760 µIU/mL). We diagnosed his condition as insulin autoimmune syndrome (IAS, Hirata disease) because of a high insulin autoantibody (IAA) titer (>90%: bound/total) and no history of exogenous insulin administration. Reactive hypoglycemia occurred due to immediate association followed by dissociation between insulin and insulin autoantibodies after glucose or food intake.

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Congenital portal systemic encephalopathy without liver cirrhosis and/or portal hypertension is rare. An 86-year-old man with senile dementia was admitted due to disturbance of consciousness. His serum ammonia level was high, but there was no evidence of liver cirrhosis or portal hypertension on laboratory tests and upper abdominal enhanced computed tomography (CT).

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This report describes a 37-year-old man with tumor-induced osteomalacia (TIO). The patient had hypophosphatemia and elevated fibroblast growth factor 23 (FGF23) in the peripheral blood. Magnetic resonance imaging detected an abnormal mass in the left greater trochanter.

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