No abstract available.
Dermatitis, Atopic ; Pyroglyphidae

In this study, the authors attempted to investigate distribution of the house dust mites in Korea on a nationwide scale. Mites were isolated and classified from 211 house dust samples which were collected from 7 urban areas and 3 rural areas. The result were as follows: 1) Nineteen species of mites were identified in this study including 4 new species which were not recorded in Korea. 2) The most frequent house dust mites were Pyroglyphid mites. Among then, Derntatophagoides farinae was found to be dominant species in Korea since this species was more widely distributed and more frequently found than D. pteronyssinus, 3) The occurence rates of Dermatophagoides sp. in the urban areas were higher than that in the rural areas, but vice versa in the occurence rates of other mites accidently found in the dust samples.
Dust* ; Korea ; Mites ; Pyroglyphidae*

No abstract available.
Antibody Formation* ; Dust* ; Immunotherapy* ; Pyroglyphidae*

No abstract available.
Child* ; Dust* ; Humans ; Lymphocytes* ; Pyroglyphidae*

No abstract available.
Humans ; Pyroglyphidae* ; Rhinitis* ; Sublingual Immunotherapy*

Studied group includes 42 patients with allergic rhinitis in whole the year by house dust mite. Control group includes 14 healthy, no allergic subjects. In normal person serum specific IgE level was nearly none. The most of allergic rhinitis patients had serum IgE with variois levels. The assay gave the same sensivity and specificity of 85.71%. In 6 patients non-consistent result of the assays was 14.29%. There is a correlation of these 2 assays with a coefficient of r = 6.12
Rhinitis, Allergic, Perennial ; Immunoglobulin E ; Pyroglyphidae

PURPOSE: The objective of this research is to provide the indoor environment management education program for the asthma patients and their families and then analyze the effectiveness in education preventing allergic asthma. METHODS: A pre-post single group quasi-experimental design was used to provide an education program about correct indoor environment management to a total of 58 households (29 patient households and 29 normal households). The performance rate of correct indoor environment management procedure, amount of house dust mite antigen, allergy subjective symptoms score and knowledge score about indoor environment management were compared before and after the education to test the effectiveness of the education. RESULTS: Home-visit education in this research had effects in improving subject households' performance rate of indoor environment management procedures, reducing the amount of house dust mite antigen - an important inducing factor of allergy, and reducing perceived subjective symptoms of allergy.
Asthma* ; Education* ; Family Characteristics ; Humans ; Hypersensitivity ; Pyroglyphidae

This study was conducted to investigate distribution of the house dust mites in the bedroom of allergic rhinitis patients in Pusan. From July to December 1995, 51 dust samples were drawn from the bedroom of the patients by using electronic vaccum cleaner. House dust mites were isolated from 50mg dust by applying the modified wet sieving method. The results were as follows: 1 Out of a total 49 dust samples(96.1%) were isolated house mites. 2 Total 977 mites were collected and identified the most prevalent house mites was Pyroglypidae mite with 92.2%. Among them D.pteronyssinus was predominant species. 3 In 1gm of the house dust, 100-499 mites were found in 17 samples(33.3%), more then 500 mites in 12 samples (23.6%). 4 The density of Pyoglypidae mite was close associated with the month. 5 The density of house dust mite was not affected by the type of house, region and the relative humidity of the bed room
Busan* ; Dust* ; Humans ; Humidity ; Mites ; Pyroglyphidae* ; Rhinitis*

BACKGROUND: Skin prick test has been the primary diagnostic tool used to recognize causative allergens, and there is some evidence that skin reactivity to allergens can be altered by changes in the environment. OBJECTIVE: We performed this study to evaluate whether there are changes in skin reactivity to inhalant allergens among patients with bronchial asthma. MATERIALS AND METHOD: We reviewed the skin prick test results of 384 bronchial asthmatics tested in the early 1990s (June 1992-May 1994) with 52 common inhalant allergens and compared the results of 500 asthmatics tested in the mid 1980s (Jan 1984 - May 1987) with the same kinds of allergens provided by the same manufacturer. RESULTS: Of the 384 subjects tested in the early 1990s, 276 subjects(71.9%) had positive reaction to one or more inhalant allergens and the positive rate was not different from that of the mid 1980s(74%). But, skin reactivity to pollens was significantly increased. In individual allergens, house dust mite(D. farinae and D. pteronyssinus) was the most reactive allergen (52.3%, 43.2% respectively) in the early 1990s. Significant differences in skin reactivity to ragweed (10.0% vs 22.1%, p<0.05) and cockroach (12.7% vs 25.0%, p<0.05) were found when the results of the 1980s and the 1990s were compared. CONCLUSION: House dust mite was the most important allergen in asthmatics from the mid 1980s to the early 1990s. There was increased sensitization to cockroach and ragweed allergen in the early 1990s. Further prospective immunologic and environmental studies are recommended for proper interpretation of the changes in skin reactivity.
Allergens* ; Ambrosia ; Asthma ; Cockroaches ; Dust ; Humans ; Pollen ; Pyroglyphidae ; Skin*

The mite fauna of the house-dust, collected from 39 houses of Seoul, were examined and the results are as follows. 1) Mites were present in 29 samples (74.3%) and the number of mites collected was 993 in total. 2) The families of the mites distinguished were Pyroglyphidae, Acaridae, Cheyletidae, Phytoseiidae and Smariidae, and the identified species were Dermatophagoides farinae, Deromatophagoides pteroassinus, Tyrophagus purtrecentiae, Landoglyphus konoi and Cheyletus malacensis. 3) D. farinae (53.6%) showed higher frequency rate of occurance than any other mites; C. malacensis (12.8%), T. putrecentiae (7.7%), D. pteronyssinus (5.0%) and I. konoi (2.7%).
Acaridae ; Dermatophagoides farinae ; Dust* ; Humans ; Mites* ; Pyroglyphidae ; Seoul