1.Two Echinostome Species, Pegosomum bubulcum and Nephrostomum ramosum (Digenea: Echinostomatidae), from an Eastern Cattle Egret, Bubulcus ibis coromandus, in Republic of Korea.
Seongjun CHOE ; Dongmin LEE ; Hansol PARK ; Hyeong Kyu JEON ; Youngsun LEE ; Eunju KIM ; Ki Jeong NA ; Keeseon S EOM
The Korean Journal of Parasitology 2016;54(4):485-496
We describe 2 echinostome species recovered from an Eastern cattle egret, Bubulcus ibis coromandus, from Cheongju-si (city), Chungcheongbuk-do (province), Korea. Total 72 Pegosomum bubulcum specimens were recovered from the bile duct. They were 7,566×2,938 μm in average size and had 27 collar spines with vitelline extension from anterior 1/3 level of the esophagus to mid-level of the posterior testis as characteristic features. Total 9 specimens of Nephrostomum ramosum were recovered in the small intestines of the bird. They were ribbon-shaped, 11,378×2,124 μm in average size, and morphologically variable in some organs, i.e., the number of collar spines (47-50), the shape of ovary and testes, and the extension of vitelline follicles. These morphological variations observed in a single host indicated that these features are not critical for the classification of Nephrostomum species and thus were reconsidered taxonomically as synonym of N. ramosum. This study is the first report documenting and describing both flukes and their associated genera in Korea.
Animals
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Bile Ducts
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Birds
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Cattle*
;
Chungcheongbuk-do
;
Classification
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Esophagus
;
Female
;
Intestine, Small
;
Korea
;
Ovary
;
Parasites
;
Republic of Korea*
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Spine
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Testis
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Trematoda
;
Vitellins
2.Prevalence of dog erythrocyte antigen 1, determined via immunochromatography, in domestic dogs in Korea
Eunju KIM ; Changyong CHOE ; Jae Gyu YOO ; Sang Ik OH ; Younghun JUNG ; Ara CHO ; Suhee KIM ; Yoon Jung DO
Korean Journal of Veterinary Research 2018;58(2):81-85
Blood group determination in dogs is an important factor in transfusion medicine to minimize immediate or delayed adverse reactions after red blood cells transfusion in small animal clinics. Dog erythrocyte antigen (DEA) 1 is the most important blood type due to its high degree of antigenicity causing acute transfusion adverse reactions. The aim of this study was to investigate the prevalence of DEA 1 in various dog breeds in Korea. As a result of testing 592 blood samples from more than 35 dog breeds, DEA 1 blood typing for each breed showed that 57.8% of Malteses, 63.3% of Poodles, 76.2% of Mastiff-like dogs, 72.5% of Pomeranians, 47.7% of Shih Tzus, 70.3% of mixed breeds, 60.0% of Yorkshire Terriers, and 71.4% of Beagles were DEA 1-positive. Miniature Schnauzers and Jindo breeds had a significantly high prevalence (100%) of DEA 1-positive dogs compared to that in other small breed dogs. This is the first report of immunochromatography-detected DEA 1 prevalence in various domestic dog breeds. Although additional studies need clarifying the potential blood transfusion risks in domestic breed dogs with DEA 1, the results of this study may be useful when selecting a blood donor.
Animals
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Blood Donors
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Blood Group Antigens
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Blood Grouping and Crossmatching
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Blood Transfusion
;
Dogs
;
Erythrocytes
;
Humans
;
Immunochromatography
;
Korea
;
Prevalence
;
Transfusion Medicine
;
Transfusion Reaction
3.Clinical validation of ImmuneCheck IgE for the rapid detection of serum total IgE.
Shinhaeng LEE ; Jinyoung CHOI ; Eunju CHOE ; Sang Chul LEE ; Kyung Hee PARK ; Jae Hyun LEE ; Jung Won PARK
Allergy, Asthma & Respiratory Disease 2018;6(6):310-314
PURPOSE: Conventional serum IgE assay was costly, required the skills of expert, and relied heavily on expensive equipment. Quantitative measurement of total IgE using Point of Care Test (POCT) device can be the solution for these limitations. This study evaluated and validated the reproducibility of ImmuneCheck IgE. METHODS: This study included 120 patients of allergic diseases such as allergic rhinitis, asthma, drug allergy, food allergy, atopic dermatitis, or anaphylaxis . The reliability of POCT ImmuneCheck IgE was evaluated by comparing results from the naked eye and from the Q-Reader. Intratest reproducibility and intertest correlation were analyzed using intraclass correlation coefficient (ICC). RESULTS: Of the 120 enrolled patients, 51 were males and 69 were females. The ages ranged from 19 to 84 years, with an average age of 51.5 years. The concentration of serum total IgE measured by Phadia ImmunoCAP IgE ranged from 5.95 to 5,000 IU/mL. ICC for Intratest reproducibility of ImmuneCheck IgE by naked eye and by Q-Reader were 0.991 (P < 0.001) and 0.989 (P < 0.001), respectively. In addition, intertest correlation between ImmuneCheck IgE and Phadia ImmunoCAP IgE results of naked eye and Q-Reader were 0.968 (P < 0.001) and 0.948 (P < 0.001), respectively. CONCLUSION: The ImmuneCheck IgE was reproducible and highly correlated with conventional Phadia ImmunoCAP IgE assay. This result suggests that ImmuneCheck IgE can be a useful tool for rapid and precise detection of total IgE.
Anaphylaxis
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Asthma
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Dermatitis, Atopic
;
Diagnosis
;
Drug Hypersensitivity
;
Female
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Food Hypersensitivity
;
Humans
;
Hypersensitivity
;
Immunoglobulin E*
;
Male
;
Point-of-Care Systems
;
Rhinitis, Allergic
4.Prevalence of dog erythrocyte antigen 1, determined via immunochromatography, in domestic dogs in Korea
Eunju KIM ; Changyong CHOE ; Jae Gyu YOO ; Sang Ik OH ; Younghun JUNG ; Ara CHO ; Suhee KIM ; Yoon Jung DO
Korean Journal of Veterinary Research 2018;58(2):81-85
Blood group determination in dogs is an important factor in transfusion medicine to minimize immediate or delayed adverse reactions after red blood cells transfusion in small animal clinics. Dog erythrocyte antigen (DEA) 1 is the most important blood type due to its high degree of antigenicity causing acute transfusion adverse reactions. The aim of this study was to investigate the prevalence of DEA 1 in various dog breeds in Korea. As a result of testing 592 blood samples from more than 35 dog breeds, DEA 1 blood typing for each breed showed that 57.8% of Malteses, 63.3% of Poodles, 76.2% of Mastiff-like dogs, 72.5% of Pomeranians, 47.7% of Shih Tzus, 70.3% of mixed breeds, 60.0% of Yorkshire Terriers, and 71.4% of Beagles were DEA 1-positive. Miniature Schnauzers and Jindo breeds had a significantly high prevalence (100%) of DEA 1-positive dogs compared to that in other small breed dogs. This is the first report of immunochromatography-detected DEA 1 prevalence in various domestic dog breeds. Although additional studies need clarifying the potential blood transfusion risks in domestic breed dogs with DEA 1, the results of this study may be useful when selecting a blood donor.
5.Effects of Air Purifiers on Patients with Allergic Rhinitis: a Multicenter, Randomized, Double-Blind, and Placebo-Controlled Study
Kyung Hee PARK ; Da Woon SIM ; Sang Chul LEE ; Sunyoung MOON ; Eunju CHOE ; Hyejung SHIN ; Sung Ryeol KIM ; Jae-Hyun LEE ; Hyung Ho PARK ; Deok HUH ; Jung-Won PARK
Yonsei Medical Journal 2020;61(8):689-697
Purpose:
Exposure to particulate matter (PM) is a well-known risk factor in the triggering and exacerbation of allergic airway disease. Indoor environments, where people spend most of their time, are of utmost importance. To assess the effects of air purifiers [equipped with high-efficiency particulate air (HEPA) filters] on allergic rhinitis (AR) in adult patients, we performed a multicenter, randomized, double-blind, and placebo-controlled study.
Materials and Methods:
Patients with house dust mite (HDM)-induced AR were randomly assigned to either active or mockup (placebo) air-purification groups. Two air purifiers (placed in living room and bedroom) were operated for 6 weeks in each home environment. The primary study endpoint was to achieve improvement in AR symptoms and medication scores. Secondary endpoints were to achieve improvement in the quality of life (QoL) and visual analog scale (VAS) scores, as well as in the indoor (bedroom and living room) concentrations of PM2.5 and PM10.
Results:
After 6 weeks of air purifier use, medication scores improved significantly in the active (vs. placebo) group, although subjective measures (symptoms, VAS, and QoL scores) did not differ. Bedroom PM2.5 concentrations initially exceeded living room or outdoor levels, but declined (by up to 51.8%) following active purifier operation. Concentrations of PM2.5 in living room and PM10 in bedroom and living room were also significantly reduced through active purification.
Conclusion
The use of air purifiers with HEPA filters significantly reduced medication requirements for patients with HDM-induced AR and significantly lowered indoor PM2.5 concentrations, regardless of room placement. Active intervention to reduce household air pollutants may help improve allergic airway disease (clinicaltrials.gov NCT03313453).