1.Recognition and Using Status of Carbon Disulfide (CS₂) as Fumigant for Controlling Chestnut Weevil, Curculio sikkimensis among Chestnut Farmers.
Moo Sik LEE ; Eun Young KIM ; Jae Lim LEE ; Gi Yeon SOHN
Journal of Agricultural Medicine & Community Health 2016;41(2):63-74
OBJECTIVES: We surveyed the awareness and current status of using fumigant carbon disulfide for exterminate Curculio sikkimensis among chestnut farmers in Chungnam Province to suggest directions for health education and public relations. METHODS: We designed questionnaires to evaluate recognition of fumigant carbon disulfide. We conducted a questionnaire survey to assess recognition and recognition level of fumigant carbon disulfide by the study variables. RESULTS: The recognition status for fumigant carbon disulfide was 74.5%, but the recognition level was low (know well 27.5%). The path of recognition was 45.1% and 15.7% for neighbor and rural technology center, respectively. The recognition status for warning label of fumigant carbon disulfide was 52.9%. Recognition for warning label of fumigant carbon disulfide was tended to increase with high educational attainment, bigger owning land area. Recognition on the content of warning label were 29.4%, 27.5%, 21.6%, and 21.6% for inflammability, toxicity, hazard, and explosiveness, respectively. Using personal protection equipment was tended to increase with the high status of awareness on fumigant carbon disulfide. CONCLUSIONS: Health education programs for using fumigant carbon disulfide are needed for chestnut farmers. In addition, publicity information activities about prevention and protection of carbon disulfide poisoning are needed for high risk farmers.
Carbon Disulfide*
;
Carbon*
;
Chungcheongnam-do
;
Farmers*
;
Fumigation
;
Health Education
;
Humans
;
Poisoning
;
Public Relations
;
Weevils*
2.Chronic Inflammatory Demyelinating Polyradiculoneuropathy Associated with Membranous Glomerulonephritis and Tendinitis.
Joo Yeon HAM ; Young Gi LIM ; Juyoun LEE ; Ae Young LEE ; Eun Hee SOHN
Journal of the Korean Neurological Association 2017;35(3):158-161
Chronic inflammatory demyelinating polyradiculoneuropathy (CIDP) is an immune-mediated progressive or relapsing demyelinating peripheral neuropathy. Other autoimmune diseases may be associated with CIDP. A 38-year-old man developed CIDP, which was subsequently associated with membranous glomerulonephritis (MGN) and tendinitis. He was treated with intravenous immunoglobulin, rituximab, and prednisone, which resulted in improvement of the clinical symptoms. This is a case report of CIDP associated with MGN and tendinitis.
Adult
;
Autoimmune Diseases
;
Glomerulonephritis
;
Glomerulonephritis, Membranous*
;
Humans
;
Immunoglobulins
;
Peripheral Nervous System Diseases
;
Polyradiculoneuropathy, Chronic Inflammatory Demyelinating*
;
Prednisone
;
Rituximab
;
Tendinopathy*
3.Detection of Circulating Tumor Cells in Breast Cancer Patients Using Cytokeratin-19 Real-Time RT-PCR.
Hyung Seok PARK ; Hyun Ju HAN ; Soohyeon LEE ; Gun Min KIM ; Seho PARK ; Yeon A CHOI ; Jeong Dong LEE ; Gi Moon KIM ; Joohyuk SOHN ; Seung Il KIM
Yonsei Medical Journal 2017;58(1):19-26
PURPOSE: The roles of circulating tumor cells (CTCs) as predictive and prognostic factors, as well as key mediators in the metastatic cascade, have been investigated. This study aimed to validate a method to quantify CTCs in peripheral blood using a real-time reverse transcriptase polymerase chain reaction (RT-PCR) assay for cytokeratin (CK)-19 and to evaluate the utility of this assay in detecting CTCs in breast cancer patients. MATERIALS AND METHODS: Real-time monitoring PCR of fluorescently labeled specific hybridization probes for CK-19 mRNA was established. Peripheral blood samples from 30 healthy donors, 69 patients with early breast cancer, 47 patients with locally advanced breast cancer, and 126 patients with metastatic breast cancer were prospectively obtained and analyzed for CTC detection. RESULTS: CK-19 mRNA was not detectable in healthy subjects using the real-time RT-PCR method. The detection rates of CK-19 mRNA in breast cancer patients were 47.8% for early breast cancer (33/69), 46.8% for locally advanced breast cancer (22/47), and 61.1% for metastatic breast cancer (77/129). The detection rate of CK-19-positive CTCs in metastatic disease was slightly higher than early or locally advanced breast cancer; however, the detection rate according to disease burden was not statistically different (p=0.097). The detection rate was higher in patients with pleural metastasis (p=0.045). CTC detection was associated with poor survival (p=0.014). CONCLUSION: A highly specific and sensitive CK-19 mRNA-based method to detect CTCs in peripheral blood in breast cancer patients can be used in further prospective studies to evaluate the predictive and prognostic importance of CTCs.
Biomarkers, Tumor/*blood
;
Breast Neoplasms/blood/*pathology
;
Female
;
Humans
;
Keratin-19/*blood/genetics
;
*Neoplastic Cells, Circulating
;
Prognosis
;
Prospective Studies
;
RNA, Messenger/*blood
;
Real-Time Polymerase Chain Reaction
;
*Reverse Transcriptase Polymerase Chain Reaction/methods
4.Development of an Automated Image Analyzer for Microvessel Density Measurement in Bone Marrow Biopsies
Yousun CHUNG ; Seungwon SHIN ; Hyoeun SHIM ; Ji Yeon SOHN ; Dong eun LEE ; Hyewon LEE ; Hyeon Seok EOM ; Kwang Gi KIM ; Sun Young KONG
Annals of Laboratory Medicine 2020;40(4):312-316
Angiogenesis is important for the proliferation and survival of multiple myeloma (MM) cells. Bone marrow (BM) microvessel density (MVD) is a useful marker of angiogenesis and an increase in MVD can be used as a marker of poor prognosis in MM patients. We developed an automated image analyzer to assess MVD from images of BM biopsies stained with anti-CD34 antibodies using two color models. MVD was calculated by merging images from the red and hue channels after eliminating non-microvessels. The analyzer results were compared with those obtained by two experienced hematopathologists in a blinded manner using the 84 BM samples of MM patients. Manual assessment of the MVD by two hematopathologists yielded mean±SD values of 19.4±11.8 and 20.0±11.8. The analyzer generated a mean±SD of 19.5±11.2. The intraclass correlation coefficient (ICC) and Bland-Altman plot of the MVD results demonstrated very good agreement between the automated image analyzer and both hematopathologists (ICC=0.893 [0.840–0.929] and ICC=0.906 [0.859–0.938]). This automated analyzer can provide time- and labor-saving benefits with more objective results in hematology laboratories.