Publications by authors named "M Yanaoka"

Tetrodotoxin (TTX), also known as pufferfish toxin, has been detected in marine edible bivalves worldwide. In this study, several bivalve species, Azumapecten farreri subsp. akazara, Patinopecten yessoensis and Mytilus galloprovincialis, collected from the Pacific side of the northern Japanese Islands, were studied for the accumulation of TTX in the presence of toxic planocerid larvae.

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Article Synopsis
  • This nationwide study conducted by the Japanese Society of Chemotherapy analyzed 688 bacterial strains isolated from urinary tract infection patients at 28 hospitals in Japan between January and June 2008.
  • The most common bacterial strains identified included Escherichia coli (255 strains), Enterococcus faecalis (140 strains), and Pseudomonas aeruginosa (114 strains), among others, with varying levels of antibiotic resistance.
  • Key findings revealed that while Enterococcus faecalis strains were mostly susceptible to antibiotics like ampicillin, around 35.7% of E. faecalis showed resistance to fluoroquinolones, and some strains of Pseudomonas aeruginosa were found to be resistant to multiple drug
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We examined the effectiveness of supplemental administration of flavoxate hydrochloride in patients with benign prostatic hyperplasia (BPH) whose nocturia was not adequately relieved by an alpha1-adrenoceptor blocker. Fifty-two patients who had two or more nocturnal micturition after administration of tamsulosin hydrochloride or naftopidil for 4 weeks or more received 400-600 mg of flavoxate hydrochloride in addition to an alpha1-adrenoceptor blocker for another 8-12 weeks. With supplemental administration of flavoxate hydrochloride, significant improvement was observed in the number of nocturnal micturition, total International Prostate Sympton Score, quality of life score and BPH impact index.

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A 54-year-old woman was referred to our institute because of abdominal pain and constipation. The computed tomography of the abdomen revealed a 3 x 3 cm of low density tumor at the upper pole of the left kidney and para-aortic lymphadenopathy. Gastrointestinal investigation revealed no particular findings suggesting a carcinoid syndrome associated with the left kidney tumor.

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