Thromboxane A2 synthetase inhibitor (OKY-046) improves abnormal mucociliary transport in asthmatic patients. 1992

K Kurashima, and H Ogawa, and T Ohka, and M Fujimura, and T Matsuda
Ishikawa Prefectural Central Hospital, Kanazawa, Japan.

The effect of a thromboxane A2 synthetase inhibitor (OKY-046, 400 mg po/day) on mucociliary transport was investigated in 19 asthmatic patients. The nasal clearance time, as measured by the saccharin test, was prolonged in asthmatics (60.2 +/- 8.4 SE min) compared with normal controls (15.1 +/- 3.4 SE min). Within 4 weeks after OKY-046 administration, the nasal clearance time had improved (27.4 +/- 4.4 SE min, P less than .01) and the amount of sputum had decreased 30% (P less than .01). These results indicate that thromboxane A2 plays an important role in mucociliary transport in patients with asthma.

UI MeSH Term Description Entries
D008297 Male Males
D008689 Methacrylates Acrylic acids or acrylates which are substituted in the C-2 position with a methyl group. Methacrylate
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D009079 Mucociliary Clearance A non-specific host defense mechanism that removes MUCUS and other material from the LUNGS by ciliary and secretory activity of the tracheobronchial submucosal glands. It is measured in vivo as mucus transfer, ciliary beat frequency, and clearance of radioactive tracers. Mucociliary Transport,Clearance, Mucociliary,Clearances, Mucociliary,Mucociliary Clearances,Mucociliary Transports,Transport, Mucociliary,Transports, Mucociliary
D009297 Nasal Mucosa The mucous lining of the NASAL CAVITY, including lining of the nostril (vestibule) and the OLFACTORY MUCOSA. Nasal mucosa consists of ciliated cells, GOBLET CELLS, brush cells, small granule cells, basal cells (STEM CELLS) and glands containing both mucous and serous cells. Nasal Epithelium,Schneiderian Membrane,Epithelium, Nasal,Membrane, Schneiderian,Mucosa, Nasal
D005260 Female Females
D005541 Forced Expiratory Volume Measure of the maximum amount of air that can be expelled in a given number of seconds during a FORCED VITAL CAPACITY determination . It is usually given as FEV followed by a subscript indicating the number of seconds over which the measurement is made, although it is sometimes given as a percentage of forced vital capacity. Forced Vital Capacity, Timed,Timed Vital Capacity,Vital Capacity, Timed,FEVt,Capacities, Timed Vital,Capacity, Timed Vital,Expiratory Volume, Forced,Expiratory Volumes, Forced,Forced Expiratory Volumes,Timed Vital Capacities,Vital Capacities, Timed,Volume, Forced Expiratory,Volumes, Forced Expiratory
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000368 Aged A person 65 years of age or older. For a person older than 79 years, AGED, 80 AND OVER is available. Elderly
D001249 Asthma A form of bronchial disorder with three distinct components: airway hyper-responsiveness (RESPIRATORY HYPERSENSITIVITY), airway INFLAMMATION, and intermittent AIRWAY OBSTRUCTION. It is characterized by spasmodic contraction of airway smooth muscle, WHEEZING, and dyspnea (DYSPNEA, PAROXYSMAL). Asthma, Bronchial,Bronchial Asthma,Asthmas

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