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BA와 GA₃ 및 Hyponex 혼용이 암대극의 신초발생에 미치는 영향
이상인(Sang In Lee),박지우(Ji Woo Park),권예은(Ye Eun Kwon),김상용(Sang Young Kim),조원우(Won Woo Cho),정미진(Mi Jin Jeong) 한국원예학회 2021 한국원예학회 학술발표요지 Vol.2021 No.10
암대극(Euphorbia jolkinii Boiss.)의 신초발생을 유도하기 위해 생장조절제인 BA(6-benzylamino purine) 단용 및 GA3(gibbellic acid3), Hyponex를 혼용하였다. 처리는 BA 500, 1000, 2000, 5000mg·L<SUP>-1</SUP> 단용처리와 GA3, Hyponex를 BA처리에 각 1000mg·L<SUP>-1</SUP>씩 혼용처리 하였다. BA단용 시 눈발생량과 지상부는 무처리에 비해 농도가 높아질수록 발생량이 많아졌으며, 초장, 엽수, 엽장은 감소하는 경향을 보였다. BA와 GA₃ 혼용처리는 눈발생량과 지상부는 2000mg·L<SUP>-1</SUP> 까지는 증가하였으나 5000mg·L<SUP>-1</SUP>에서는 감소하였다. 초장, 엽수, 엽장 및 경직경 모두 무처리와 비교하여 감소하였고, 5000mg·L<SUP>-1</SUP>에서 엽장이 0.05cm로 크게 감소하였다. 또한 경직경은 GA₃ 혼용처리에서 가장 얇았다. BA와 Hyponex 혼용처리는 눈발생량과 지상부는 2000mg·L<SUP>-1</SUP>이상의 농도에서 증가하였으나 5000mg·L<SUP>-1</SUP><SUP></SUP>에서는 감소하였다. 초장, 엽수 및 엽장은 500mg·L<SUP>-1</SUP>에서 가장 우수하였고, BA농도가 증가함에 따라 감소하였다. 경직경의 경우 1000mg·L<SUP>-1</SUP>까지 두꺼워졌으나 2000mg·L<SUP>-1</SUP>이상에서는 얇아졌다. 5000mg·L<SUP>-1</SUP>농도에서는 전반적인 생육이 크게 억제되었다. 따라서 BA 단용은 1000mg·L<SUP>-1</SUP>농도 이상에서 눈발생량을 촉진하였지만 초장, 엽수, 엽장 및 경직경을 포함한 전반적인 생육은 Hyponex 혼용처리에서 우수하였으므로, BA 1000mg·L<SUP>-1</SUP>과 Hyponex 1000mg·L<SUP>-1</SUP>처리가 효과적인 것으로 판단되며, 추가적으로 BA 1000mg·L<SUP>-1</SUP>과 Hyponex의 N-P-K조성과 농도별 실험이 진행되어야 한다고 생각된다.
알레르기 가족력이 영아기 아토피피부염 발생에 미치는 영향
김혜영 ( Hye Young Kim ),장은영 ( Eun Young Jang ),심재훈 ( Jae Hoon Sim ),김지현 ( Ji Hyun Kim ),정영희 ( Younghee Chung ),박수화 ( Su Hwa Park ),황은미 ( Eun Mi Hwang ),한영신 ( Young Shin Han ),안강모 ( Kang Mo Ahn ),이상일 ( S 대한소아알레르기호흡기학회(구 대한소아알레르기 및 호흡기학회) 2009 소아알레르기 및 호흡기학회지 Vol.19 No.2
목적: 국내 아토피피부염은 증가 추세로 위험요인을 파악하는 것은 효율적인 예방과 치료 관리에 도움이 될 것이다. 전향적 출생 코호트 연구를 통하여 부모의 알레르기 병력에 따른 영아 아토피피부염의 발생률 및 위험도를 알아보고자 하였다. 방법: 2006년 7월부터 12월까지 재태주수 34주 이상된 산모를 모집한 후 설문조사 및 피부단자시험을 시행하였고 이들로부터 출생하여 생후 12개월까지 추적 관찰이 가능했던 영아 542명을 대상으로 아토피피부염 발생 여부를 조사하였다. 출산 전 설문 조사를 통하여 부모의 알레르기 병력, 형제 수, 흡연력, 애완동물 여부 및 어머니의 학력을 조사하였고 출산 후 영아의 성별, 출생력, 수유형태, 예방접종력, 질환력 및 항생제 사용력을 조사하였다. 아토피피부염의 진단은 소아청소년과 알레르기 전문의의 진료를 통하여 이루어졌고 임상적 중증도는 SCORAD 점수를 사용하여 평가하였다. 아토피피부염으로 진단받은 환아들은 특이IgE 유무에 따라 외인성 및 내인성 아토피피부염으로 분류하였다. 결과: 총 542명 영아(남아 272명, 여아 270명)를 12개월까지 추적 관찰하였을 때 아토피피부염으로 진단받은 영아는 109명(20.1%)였다. 이들 중105명 영아의 혈청으로 특이 IgE 검사를 시행하였고 75명(71.4%)은 외인성 아토피피부염으로 30명(28.6%)은 내인성 아토피피부염으로 진단되었다. 다변량 분석시 엄마가 알레르기 질환력이 있는 경우 aRR (95% CI)는 2.03 (1.12-4.10)로 아토피피부염 발생이 가장 중요한 위험인자로 조사되었고 엄마의 아토피피부염 병력과 호흡기 알레르기 질환력은 모두 aRR 2.15 (1.44-3.25)과 1.85 (1.24-2.43)로 통계학적 유의성을 보였다. 부모의 알레르기 병력이 없는 군에서는 영아의 아토피피부염 발생률은 14.7%였고, 한쪽 부모만 병력이 있는 경우는 27.0% (aRR, 1.85, 95% CI: 1.24-2.89), 부모모두 병력이 있는 경우 41.7% (aRR, 2.93, 95% CI: 1.68-4.96)의 발생률을 보였다. 결론: 생후 12개월까지의 아토피피부염의 발생률은 20.1%였고 발생의 주된 위험인자는 어머니의 알레르기 질환력이었다. 또한 부모의 알레르기 질환력 유무에 따라 아토피피부염 발생의 위험도는 최고 2.93배 증가되어 아토피피부염 발생과 부모의 알레르기 질환력의 밀접한 연관성을 알 수 있었다. Purpose: The prevalence of atopic dermatitis (AD) has been increased in Korea. We aim to investigate the risk factors for development of AD in infants, especially those factors related to the family history. Methods: The data from 542 infants in our prospective birth cohort study were analyzed. The data from their parent were collected by questionnaires and skin prick tests. They were regularly followed up at 1 year of age when the presence of AD and allergen sensitization was determined. Various factors such as sex, cesarean section delivery, duration of breast feeding, presence of siblings, vaccination, antibiotic use and pet keeping were also assessed. Results: AD developed in 109 infants (20.4%). In univariate analysis, the presence of either maternal or paternal allergic diseases increased the risk for development of AD in their infants. Multivariate logistic analysis, however, showed that only the presence of maternal allergic diseases correlated with the development of AD (P=0.018). While AD developed in 14.7% in infants of parents with no allergic history, the incidences of AD in infants with a single parent allergy history and in those with 2 parent allergy history were 27.0% and 41.7%, respectively. Their adjusted relative risks (95% confidence intervals) were 1.85 (1.24-2.89) and 2.93 (1.68-4.96), respectively. Conclusion: Parental allergic diseases, especially maternal allergic diseases, are possible risk factors for development of AD in Korean infants. [Pediatr Allergy Respir Dis(Korea) 2009;19:106-114]
NiFe/IrMn 박막의 평면 홀 효과에 영향을 주는 교환바이어스의 온도 의존성 연구
최의영(Eui Young Choi),김지호(Ji Ho Kim),서지원(Ji Won Seo),이아연(Ah-Yeon Lee),박승영(Seung Young Park),이상석(Sang-Suk Lee) 한국물리학회 2022 새물리 Vol.72 No.5
우리는 NiFe/IrMn 겹층 구조에서 온도에 따른 평면 홀 효과와 교환바이어스의 상관관계를 분석하였다. 그 결과, IrMn의 스핀 구조에 의해서 유발되는 교환바이어스의 온도에 따른 의존도가 평면 홀 효과의 센서 감도를 좌우한다는 것을 확인하였다. 임계온도이상에서는 열요동에 의해서 온도가 증가하면서 자기비등방성은 감소하며, 이에 따라서 평면 홀 효과 센서 감도는 감소한다. 반면에, 3 K 부근의 저온에서는 IrMn에 의한 스핀 글라스 현상에 의해 교환바이어스가 급격히 커지고, 이로 인해 평면 홀 효과의 센서감도는 급격히 감소한다. 평면 홀 센서 감도를 결정하는 중요한 요소인 교환바이어스에 대한 우리의 근본적인 연구는 더욱 성능이 좋은 평면 홀 센서를 디자인하는데 도움을 주리라 기대한다. We analyzed the correlation between the planar Hall effect and the exchange bias according to the temperature in the NiFe/IrMn layered structure. As a result, it was confirmed that the temperature dependence of the exchange bias caused by the spin structure of IrMn determines the sensor sensitivity of the planar Hall effect. Above the critical temperature, the magnetic anisotropic property decreases as the temperature increases owing to thermal fluctuation; accordingly, the sensor sensitivity of the planar Hall effect decreases. By contrast, at low temperatures near 3 K, the exchange bias rapidly increases owing to the spin glass phenomenon caused by IrMn; thus, the sensor sensitivity of the planar Hall effect rapidly decreases. Our fundamental research on exchange bias, an important factor in determining the sensitivity of planar Hall sensors, is expected to help design more capable planar Hall sensors.
다제내성 결핵환자에서 Prothionamide에 의한 급성 간염
박준범 ( Jun Beom Park ),박병훈 ( Byung Hoon Park ),손지영 ( Ji Young Son ),정지예 ( Ji Ye Jung ),김은영 ( Eun Young Kim ),임주은 ( Ju Eun Lim ),이상훈 ( Sang Hoon Lee ),이상국 ( Sang Kook Lee ),김송이 ( Song Yee Kim ),정원재 ( Wo 대한결핵 및 호흡기학회 2011 Tuberculosis and Respiratory Diseases Vol.70 No.3
The prevalence of multi-drug resistant tuberculosis (MDR-TB), which is resistant to isoniazid and rifampin, has been increasing in Korea. And the side effects of 2nd line anti-tuberculosis medications, including drug-induced hepatitis, are well known. Although prothionamide (PTH) is one of the most useful anti-TB medications and although TB medication-induced acute hepatitis is a severe complication, there are only a few published case reports about prothionamide induced hepatitis. In this case report, a 22 year old male was diagnosed with pulmonary MDR-TB and was administered 2nd line anti-TB mediations, including PTH. Afterwards, he had a spiking fever and his liver enzymes were more than 5 times greater than the upper limit of the normal range. He was then diagnosed with drug-induced hepatitis by liver biopsy. His symptoms and liver enzyme elevation were improved after stopping PTH. Accordingly, we report this case of an association between PTH and acute hepatitis.
간이식 환자에서 발생한 Nocardia farcinia 폐렴 및 패혈성 쇼크
이수환 ( Su Hwan Lee ),박병훈 ( Byung Hoon Park ),손지영 ( Ji Young Son ),정지예 ( Ji Ye Jung ),김은영 ( Eun Young Kim ),임주은 ( Ju Eun Lim ),이지훈 ( Ji Hoon Lee ),현신영 ( Shin Young Hyun ),이상훈 ( Sang Hoon Lee ),이상국 ( San 대한결핵 및 호흡기학회 2010 Tuberculosis and Respiratory Diseases Vol.69 No.6
Nocardia farcinia, an aerobic, gram-positive bacilli actinomycetes of the genus Nocardia, is an uncommon pathogen found in humans. The most common Nocardia infection sites are the lung, central nervous system, and skin. Even though hematogenous dissemination can occur, isolation of the organism from blood cultures is very rare. We report a case of Nocardia infection that was isolated on blood cultures. A 59-year-old male with a medical history that includes a liver transplantation 6-years prior due to hepatocellular carcinoma secondary to chronic hepatitis B, developed pneumonia and was transferred to Severance Hospital. At the time of admission, the patient`s initial exam showed hypothermia, tachypnea, and hypotension. His chest radiograph showed severe pneumonia and a large abscess on left upper lobe. Under the presumptive diagnosis of bacterial pneumonia or other opportunistic infection, we started broad spectrum antibiotics. However, he developed Nocardia sepsis, rapidly deteriorated, and subsequently died.
염증성 대장질환의 질환 활성도 측정방법으로서 99m Tc-HMPAO-SPECT의 의의
이상인(Sang In Lee),김영수(Young Soo Kim),조성원(Sung Won Cho),문영수(Young Soo Moon),김진홍(Jin Hong Kim),함기백(Ki Baik Hahm),이광재(Kwang Jae Lee),지훈(Hoon Ji),홍사준(Sa Joon Hong),박찬희(Chan Hee Park) 대한소화기학회 1997 대한소화기학회지 Vol.30 No.1
N/A Background/Aims: Exact deterrnination of the extent of bowel involvement in inflammatry bowel disease is essential for the evaluation of disease severity and for the planning of approapriate therapy. The aim of the study was to detemine the accuracy of TC-HMPAO(Hexamethyl Propylene Amine Oxime) labelled leukocyte-SPECT(Single Photon Emission Computerized Tomography) in the assessment of disease extent and disease activity in inflammatory bowel disease. Methods: Using a scintigraphy with autologous leukocytes labelled by Tc-HMPAO was performed in 32 cases. In 15 patients with 9 ulcerative colitis, 6 Crohns disease, the clinical, endoscopic and histologic disease activities were compared with SPECT activity index, respectively. Results: 1. 'Tc HMPAO labelled leukocyte SPECT revealed 92.6% sensitivity, 100% specificity and 93.8% accuracy to detect of active inflammation of the colon. 2. The correlation between clinical activity index(Rachmilewiltz), and HMPAO SPECT activity index was very high significant(r=0.91; p0.001), less significant(r=0.69; p0.01) between endoscopy and scan activity index and highly significant(r=0.89; p(0.001) between histologic activity index and scan activity index. Conclusions: Tc-HMPAO labelled leukocyte SPECT is a reliable method to determine the extent of the bowel inflammation and disease activity in inflammatory bowel disease. (Korean J Gastroenterol 1997; 30:48 - 57)
변산향유 유묘 생장에 미치는 파종용기, 토양조성, 파종량, 추비조건의 영향
이상인(Sang In Lee),박지우(Ji Woo Park),권예은(Ye Eun Kwon),김상용(Sang Young Kim),조원우(Wonwoo Cho),정미진(Mi Jin Jeong) 한국자원식물학회 2022 한국자원식물학회지 Vol.35 No.1
Elsholtzia byeonsanensis is a Korean native plant of the Lamiaceae family, and was first introduced in the Korean Journal of Plant Taxonomy. This plant has a short plant length of 20-35 ㎝, with leathery and glossy leaves. The purple flowers bloom in November, so they are highly useful as potted or ground cover ornamental plants. In this study, tray cell size (128, 162, and 200-cell trays), soil composition [horticultural soil (HS): decomposed granite (DG) 1:1, 1:2, and 1:4 (v:v)], seeding rate (1, 2, and 3 seeds per cell) and additional fertilizer concentrations (0, 250, 500, and 1000 ㎎/L Hyponex) were tested to find out the optimum seedling growth conditions. As a result of the study, E. byeonsanensis growth increased proportionally as the cell size of the tray increased. The growth was inhibited as the percentage of DG increased. As for the growth according to the seeding rate, plant height, plant width, leaf length, and leaf width decreased as the seeding rate increased, but there was no difference in the number of leaves, stem diameter, and root length. There was an increasing trend in seedling growth as the additional fertilizer concentration increased. Therefore, for producing E. byeonsanensis seedling, it is most effective to fill HS or HS:DG 1:1 in 128-cell trays, sow one seed per cell, and spray the seedling at 1000 ㎎/L for additional fertilizer.
전방경추융합술 후 발생한 역설상기도폐쇄 및 중추성 수면 무호흡
이상학 ( Sang Haak Lee ),최영미 ( Young Mee Choi ),박예리 ( Ye Ree Park ),강지호 ( Ji Ho Kang ),김영균 ( Young Kyoon Kim ),김관형 ( Kwan Hyoung Kim ),송정섭 ( Jeong Sup Song ),박성학 ( Sung Hak Park ),문화식 ( Hwa Sik Moon ) 대한결핵 및 호흡기학회 2005 Tuberculosis and Respiratory Diseases Vol.58 No.3
We report a case of a 48-year-old man with a paradoxic upper airway obstruction and central sleep apnea that developed after an anterior cervical spinal fusion. Nine months before being admitted to this hospital, he was diagnosed with a herniated interver
다발성 근염 환자에서 발생한 장관 포상 기종 및 부분적 장폐쇄의 1예
김지연 ( Ji Yeon Kim ),권용환 ( Yong Hwan Kwon ),이상직 ( Sang Jik Lee ),장세영 ( Se Young Jang ),박수영 ( Soo Young Park ) 대한장연구학회 2011 Intestinal Research Vol.9 No.3
Pneumatosis cystoides intestinalis (PCI) is a rare disease characterized by the presence of intramural gas-filled cysts in the gastrointestinal wall. This disease has been documented in patients with various medical conditions such as gastrointestinal disease, chronic obstructive lung disease, sepsis, and autoimmune disorders. A 49-year-old woman, who was undergoing immumosuppressant therapy due to polymyositis, developed PCI. She experienced a gradual onset of abdominal distension. A simple abdominal radiograph revealed small, round air shadows involving the small bowel, and abdominal computed tomography showed intraluminal air bubbles at the jejunal loop with free air in the peritoneum. Treatment with doxycycline effectively relieved the clinical symptoms and reduced the intramural gas. (Intest Res 2011;9:234-237)