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Takeshi Matsuse

Publications and source records attributed to Takeshi Matsuse.

11 recordsLinked to original sources

Effects of oxygen administration on the circulating vascular endothelial growth factor (VEGF) levels in patients with obstructive sleep apnea syndrome.

OBJECTIVE: Repeated nocturnal hypoxia is implicated in the pathogenesis of cardiovascular complications in obstructive sleep apnea syndrome (OSAS). We hypothesized that circulating vascular endothelial growth factor (VEGF) levels are affected by nocturnal hypoxemia in patients with OSAS. METHODS: We examined the serum VEGF levels in patients with OSAS and in control subjects. We also tested the effects of oxygen or air administration on the subjects' VEGF levels. PATIENTS AND MATERIALS: Twenty-four OSAS patients (mean age 54.2 +/- 3.6 years) and 24 age-matched control subjects (53.2 +/- 3.6 years). Their serum samples were tested. RESULTS: Serum VEGF levels at 8:00 AM were significantly higher in OSAS patients than in controls (p<0.01). VEGF levels decreased from 515 +/- 31 (pg/ml) to 178 +/- 16 (pg/m) (p<0.01) in OSAS patients whose nocturnal hypoxemia was found to be improved by administration of 2 l/min of oxygen during the night. However, the administration of compressed air affected neither the VEGF level nor nocturnal oxygen desaturation in OSAS patients. CONCLUSION: These results indicate that circulating VEGF levels are elevated in OSAS patients, primarily due to nocturnal hypoxemia.

Adult↗

[Hypogammaglobulinemia associated with thymoma (Good syndrome) similar to diffuse panbronchiolitis].

A 65-year-old woman complained of dyspnea and a productive cough after surgical treatment and irradiation therapy for thymoma. Chest radiography and high-resolution computed tomography showed small nodules in centrilobular lesions in all of both lung fields, but predominantly in the lower fields. In addition, blood tests showed hypogammaglobulinemia. Chronic sinusitis, mild hypoxemia, severe obstructive impairment and the pathological findings of bronchiolitis led to a diagnosis of sinobronchial syndrome caused by Good syndrome. Treatment with oral erythromycin 600 mg/day was started. After 6 months, the patient improved both clinically and radiologically. Low-dose, long-term treatment with erythromycin was effective against sinobronchial syndrome caused by Good syndrome.

Agammaglobulinemia↗

Adenovirus-mediated transfer and overexpression of heme oxygenase 1 cDNA in lung prevents bleomycin-induced pulmonary fibrosis via a Fas-Fas ligand-independent pathway.

Heme oxygenase 1 (HO-1) is an inducible enzyme that catalyzes heme to generate bilirubin, ferritin, and carbon monoxide. Because enhanced expression of HO-1 confers protection against many types of cell and tissue damage by modulating apoptotic cell death or cytokine expression profiles, we hypothesized that adenovirus-mediated transfer of HO-1 cDNA and subsequent overexpression of the protein in lung would provide therapeutic benefit in a murine model of bleomycin-induced pulmonary fibrosis. In C57BL/6 mice, HO-1 overexpression clearly suppressed the development of fibrotic changes and was associated with enhanced interferon gamma production in lung and reduced numbers of respiratory epithelial cells with damaged DNA. However, HO-1 overexpression did not prevent pulmonary fibrosis induced by agonistic anti-Fas antibody inhalation in C57BL/6 or ICR mice, a strain known to develop pulmonary fibrosis via the Fas-Fas ligand (FasL) pathway. Consistent with the concept that HO-1 overexpression prevents fibrosis via a pathway independent of Fas-FasL interaction, Ad.HO-1 administration prevented bleomycin-induced pulmonary fibrosis in gld/gld mice, which express nonfunctional FasL. These observations suggest that using HO-1 overexpression strategies to treat idiopathic pulmonary fibrosis, or fibrotic disorders of other target organs, by attenuating apoptotic cell death likely would be effective in clinical situations.

Adenoviridae↗

[Monoclonal antibody therapy for allergic asthma].

Allergic responses at the level of the respiratory system are mostly mediated by IgE-dependent mechanisms. The first selective anti-IgE therapy, a recombinant humanized monoclonal anti-IgE antibody(rhuMAb-E25), binds with high affinity to the Fc epsilon RI receptor binding site on IgE, thereby reducing the amount of free IgE available to bind to Fc epsilon RI receptors on mast cells and basophils. In addition, administration of rhuMAb-E25 indirectly reduces Fc epsilon RI receptor density on cells involved in allergic responses. rhuMAb-E25 has been shown to reduce allergic responses in atopic individuals and to improve symptoms and reduce rescue medication and corticosteroid use in patient with allergic asthma. The clinical effectiveness of rhuMAb-E25 supports the central role of IgE in allergic reaction and the viability of anti-IgE therapy as an effective immunological intervention for allergic asthma.

Animals↗

[Chronic obstructive pulmonary disease (COPD) in the elderly: analysis from questionnaire about attitudes to the COPD guideline of the Japanese Respiratory Society and actual therapy for COPD used by physicians].

We have conducted a survey of attitudes to chronic obstructive pulmonary disease (COPD) in the elderly, a survey of attitudes to the COPD guideline prepared by the Japanese Respiratory Society, and a survey of the therapies actually used for this disease among physicians belonging to the Yokohama Medical Association. The results showed that most respondents thought that physicians, mainly except for respiratory physicians, miss the COPD patients because of failure to recognize COPD. The spread of the COPD guideline among physicians and the amount of therapy conducted according to this guideline were also insufficient. However, most physicians who know this guideline have used it well, and have also appreciated the contents. Thus, the results of our surveys suggested that this COPD guideline, with its step-by-step pharmacologic therapy, should be more widely disseminated, mainly among clinics and physicians that are not respiratory specialists. This would enable them to follow the guideline and improve their treatment of COPD. In addition, it was also supposed that the comprehensive respiratory rehabilitation should be more executed in the hospitals.

Aged↗

[Hypoventilation].

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Diagnosis, Differential↗

[Sleep apnea].

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Diagnosis, Differential↗