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광주지역 HIV/AIDS, 매독 혈청 양성률 및 임질 양성률 분포조사(2002-2006)
기혜영,최병선,서진종,김선희,김민지,김은선,박종태,정재근 대한감염학회 2009 감염과 화학요법 Vol.41 No.4
Background : The epidemic of human immunodeficiency virus (HIV) or sexually transmitted infections (STIs) is an important public health issue in the worldwide. Therefore, we investigated the trends of the seroprevalence of HIV and, syphilis and the gonorrhea positive rates in Gwangju from 2002 to 2006. Materials and Methods : The results of laboratory tests for HIV, syphilis and gonorrhea were collected from five public health centers and 19 hospitals in Gwangju. The number of tested patients from 2002 to 2006 was 348,202 cases for HIV, 80,115 cases for syphilis and, 103,548 cases for gonorrhea. Results : HIV/AIDS infections have rapidly increased at public health centers and hospitals. Especially, most of newly HIV-infected people were patients on ambulatory care/hospitalization, and they were also found via preoperation tests and according to the clinical symptoms. The gonorrhea positive rates have gradually decreased by year while the syphilis infection rates have slightly increased from 2002 to 2006. Conclusions : We have to determine the reasons why HIV and syphilis infections, but not gonorrhea, have increases simultaneously by the year. These results should be helpful to create a more effective STD prevention policy and the treatment guidelines for the people in Gwangju in the near future.
산양의 Anaplasmosis에 대한 역학적 조사 2. Terramycin을 이용한 치료시험
서석열 ( Surk Yul Seo ),서이원 ( Yee Won Seo ),조선기 ( Sun Kee Cho ),허철호 ( Chul Ho Hur ),김동선 ( Dong Sun Kim ),손구례 ( Kyu Re Soon ),백병걸 ( Byeong Kirl Baek ) 한국동물위생학회 1994 한국동물위생학회지 (KOJVS) Vol.17 No.1
Anaplasmosis is a tick-borne disease mainly of cattle, sheep, and goats. Anaplasmosis in goat had been reported at last year by authers. The disease brought the economic losses in the goat farm in Chonbuk province. In order to treat the disease, a long-acting formulation terramycin injectable solution was used experimental animals which indigenous goats were sick with moderate anemia. We were devided into two groups was treated with single dosage(20mg/kg of body weight). one group was treated with single injection, the other group was treated with twice of the same dosage intramusculary injection. The results indicate that the use of long-acting terramycin would minimize clinical signs of anaplasmosis infection in goat. After treament the differrences of hematological appearences and parasitaemia were observed in the effect of terramycin treatment. obviously, increased value of RBC. HB and HCT, and parasitaemia by means of Giemsa staining and acrydine orange staining was observed decreased due to treatment.
Evaluation of low dose administration of N-methyl-N-nitrosourea to p53 heterozygous knockout mouse
Sun-Min Seo,Na-Won Kim,Eun-Seon Yoo,Ah-Reum Kang,Ji-Hun Lee,Jae-Hoon Lee,Byeong-Cheol Kang,Han-Woong Lee,Yang-Kyu Choi 한국실험동물학회 2021 한국실험동물학회 학술발표대회 논문집 Vol.2021 No.7
The tumor suppressor p53 gene is one of the most studied genes. p53 deficient mice are broadly applied to studying short-term carcinogenesis instead of expensive and time-consuming traditional carcinogenicity protocols. This study was performed to evaluate the low dose intraperitoneal N-methyl-N-nitrosourea (MNU) administration for FVB-p53 heterozygous null (p53+/-) mice generated by CRISPR/Cas9 technology. To compare the pathological differences between each group, wild-type (WT) and p53+/- mice were injected with 25 mg/kg MNU and examined for their histopathological and survival analyses of twenty-six week carcinogenicity study. 100% WT mice survived for 180 days, whereas 84.6% p53+/- mice survived for 168 days. The tumor incidence rate was 80.8% in p53+/- mice and 52.6% in WT mice. The lung tumor was the most common tumor in this study. The proportion of malignant lung tumors in WT mice were 20%, while 50% of lung tumors in p53+/- mice were malignant, Although WT mice did not show thymic malignant lymphoma, three of p53+/- mice showed thymic malignant lymphoma, and two cases metastasis to lung, liver, spleen, kidney, and lymph nodes. These results indicate that malignant lung tumors were well developed by administering 25 mg/kg MNU to p53+/- mice. Further study with the administration of MNU with intermediate concentration will be considered. In conclusion, p53+/- mice are an appropriate model for short-term carcinogenicity studies.
Multiple System Atrophy Manifested by Bilateral Vocal Cord Palsy as an Initial Sign
Yuri Seo,Soomin Jeung,Heeyoung Yoon,Min-chul Kim,Nah Kyum Lee,Byeong Zu Ghang,Sun Ju Chung,고윤석 대한중환자의학회 2015 Acute and Critical Care Vol.30 No.2
A 71-year-old male initially presented with vocal cord palsy and underwent tracheostomy. After thorough examination, urogenital dysfunction, orthostatic hypotension, and Parkinsonism were found, which led to the diagnosis of multiple system atrophy (MSA). After the tracheostomy, bi-level positive airway pressure ventilation was required during the night due to nocturnal hypoxemia. Nighttime hypoxemia is related to central sleep apnea, which is one of the manifestations of MSA. This is the first case of MSA manifested by bilateral vocal cord palsy as an initial sign in Korea. This case supports the notion that MSA should be taken into consideration when vocal cord paralysis is observed.
순천만에서 발생하는 패각을 이용한 질산염과 인산염의 제거
공병욱 ( Byeong-wook Kong ),고현주 ( Hyeon-ju Goh ),유영선 ( Yung-sun Ryu ),서하나 ( Ha-na Seo ),이우진 ( Woo-jin Lee ),라덕관 ( Deog-gwan Ra ),정정조 ( Cheong-jo Cheong ) 한국환경기술학회 2017 한국환경기술학회지 Vol.18 No.4
본 연구는 순천만 주변에서 발생하는 새꼬막 패각을 이용한 수처리제로서의 활용방안에 대해 알아보기 위함으로 영양염류 제거효율에 대하여 분석하여, 다음과 같은 결론을 도출하였다. TGA 분석결과 굴 및 꼬막 패각은 700℃ 전후에서 유기물 손실에 의한 43%의 중량 감소를 보이며, XRD 분석으로 비소성일 경우는 탄산칼슘(CaCO<sub>3</sub>)이, 소성일 경우는 산화칼슘(CaO)이 주성분을 이루는 것으로 나타났다. 질산염 제거를 위한 모든 조건의 실험과정에서 비소성 보다 소성 패각이 높은 제거효율을 가지는 것으로 나타났으며, 이는 SEM 분석 결과를 통한 비소성은 침상 및 판상 형태를 보이나, 소성의 경우는 다공성 형태를 보임에 따라서 더 넓은 비표면적을 가지는 영향으로 판단된다. 인산염 제거를 위한 모든 조건의 실험과정에서 비소성 보다 소성 패각이 높은 제거 효율을 가졌으며, 굴과 새꼬막에 의한 제거율은 비슷한 것으로 나타났으며, 소성된 패각(0.25~0.50 mm) 1 g으로 400 mg/L의 인산염을 99% 이상 제거 가능한 것으로 나타났다. 순천만에서 발생하는 새꼬막 패각을 이용하여 인산염 제거에 효율적인 수처리제로 활용가능할 것으로 판단되며, 특히 소규모 마을 하수처리장의 인처리 시설에 유용할 것으로 판단된다. The purpose of this study is to investigate about application of wastewater treatment using ark shell taken from the Suncheon Bay. Specific conclusions derived from this study through removal efficiency of nutrients are as follows. The oyster and ark shell was shown weight loss of 43% due to loss of organic matter around 700℃ in the TGA analysis and their main component was shown calcium carbonate (CaCO<sub>3</sub>) in case of non-calcined and calcium oxide(CaO) in calcined shell. The calcined shell was shown higher removal efficiency than non-calcined in all terms for nitrate removal because non-calcined type is flat structure but calcined is porous type of large specific surface. 1 g of calcined shell(0.25~0.50 mm) capable of removing 99% or more of 400 mg/L of phosphate was shown higher removal efficiency than non-calcined and the removal rates of oyster and ark shell were similar in all terms for phosphate removal. It can be used effective water treatment agent for phosphate removal using ark shell taken from the Suncheon Bay. Particularly, it is expected to be useful in phosphorus treatment facilities of small scaile sewage treatment plant.1)