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온실에서 동양란인 심비디움 재배에 공생균의 효과에 관한 연구
이상선,이준기,이정우,박소영,백기엽 충북대학교 첨단원예기술개발연구센터 2000 연구보고서 Vol.5 No.-
The orchid symbiotic fungus (Tulsanella repens P-01; OSF) was cultured on the soil materials by solid culture and inoculated in the two varieties of GwanUm and SaGae of Cymbidium hybrids with the barks. The two varieties of the oriental orchid were measured after 12 months' cultivation under the conditions of greenhouse; fresh weight, numbers of bulb, and rate of dead bulb for an individual plant. The fresh weight of plants were measured to be different for the individual plant. The fresh weight of plants were measured to be different for the individual plants treated with the OSF or not, depending on the varieties, but the rates of dead bulb were significant, disregarding with the varieties. The roots of the plants treated were observed to be more health and heavier weight than those not treated. The bulbs of the plants not treated were measured to be dead at the rate of 20% for a year's cultivation. The roots of two varieties were also observed by naked eyes and by microscope; Several peletons were observed to be in the root cells in the individual plants treated with OSF, but not in the individual plants treated without the OSF. Further, the pathogenic fungal hyphae were observed to be in the roots under the dead bulbs of both varieties not treated; appessorium or hasutorium on the epidermal cells of root. The inoculation of OSF was speculated to stimulate the growth of plants by absorption of mineral nutrition and defense the invasions of soil pathogenic fungi for the cultivations of Cymbidium hybrids.
Up-regulated claudin 7 expression in intestinal-type gastric carcinoma.
Park, Jeong Youp,Park, Kyung Hwa,Oh, Tae Yun,Hong, Sung Pil,Jeon, Tae Joo,Kim, Chang Hoon,Park, Seung Woo,Chung, Jae Bock,Song, Si Young,Bang, Seungmin National Hellenic Research Foundation 2007 Oncology reports Vol.18 No.2
<P>The disruption of tight junction protein expression in cancer might account for invasiveness, loss of cohesion, and lack of differentiation. Our cDNA array data indicated that claudin 7 was up-regulated in gastric carcinoma. We investigated the expression patterns and clinical implications of claudin 7 in gastric cancer. By immunohistochemical staining and Western blot, claudin 7 was significantly more often expressed in intestinal metaplasia, adenoma and cancer than in normal gastric epithelium. Twenty-seven (47.4%) of 57 normal gastric epithelium samples did not express claudin 7, but 50 (86.2%) of 58 intestinal metaplasia, 11 (91.7%) of 12 adenoma tissues, and 129 (82.7%) of 156 cancer samples did. Claudin 7 was more often unexpressed in diffuse type gastric cancer than in intestinal type. Only 13 (11.2%) of 116 intestinal type samples did not express claudin 7, but 14 (41.2%) of 34 diffuse type samples showed no expression. Compared to normal gastric epithelium, intestinal type gastric cancer significantly more often expressed claudin 7, but diffuse type did not. The expression pattern of claudin 7 did not change as cancer progressed. In this study we show that claudin 7 expression changed with the gastric carcinogenic process and that this is implicated in cancer characteristics.</P>
Park, Jeong Youp,Kim, Hee Man,Choi, Yun Ah,Jeon, Tae Joo,Oh, Tae-Hoon,Kim, Chang Hoon,Youn, Young Hoon,Bang, Seungmin,Kim, Hyung Gil,Lee, Don Haeng,Shin, Yong Woon,Song, Si Young G. Thieme 2010 Hepato-gastroenterology Vol.57 No.101
<P>BACKGROUND/AIMS: Wireless capsule endoscopes (CEs) have become a useful diagnostic tool for small bowel diseases, but they may fail to examine the entire small bowel. We analyzed the clinical experience of the MiRo CE in patients with suspected small bowel disease to assess whether longer operation time could increase the complete examination rate of the small bowel and diagnostic yield. METHODOLOGY: A total of 96 patients with suspected small bowel disease received CE examination at 4 tertiary hospitals in Korea. The recorded information was uploaded to a computer and analyzed by the physicians responsible for each patient. RESULTS: The average total capsule operation time was 11 hours and 39 minutes (range: 5 hours 18 minutes approximately 12 hours). In 87 (90.6%) out of 96 cases, the CE was able to explore the entire small bowel. In 32 cases (33.3%), it took more than 8 hours to reach the cecum. Capsule retention occurred in 2 cases (2.1%). The CE found meaningful small bowel lesions in 62 (64.6%) out of 96 total cases. CONCLUSIONS: A CE with a long operation time had more chance to explore the entire small bowel even in patients with suspected small bowel disease.</P>
Long-term follow up of gallbladder polyps
Park, Jeong Youp,Hong, Sung Pil,Kim, Yoon Jae,Kim, Hong Jeoung,Kim, Hee Man,Cho, Jae Hee,Park, Seung Woo,Song, Si Young,Chung, Jae Bock,Bang, Seungmin Blackwell Publishing Asia 2009 Journal of gastroenterology and hepatology Vol.24 No.2
<P>Abstract</P><P>Background and Aim: </P><P>The management of gallbladder polyps (GBP) is directly linked to the early diagnosis of gallbladder cancer (GBC). This study aimed to evaluate the malignant risk of GBP.</P><P>Methods: </P><P>In total, 1558 patients diagnosed with GBP were followed. Neoplastic polyps were defined as GBC and its premalignant lesions. The risk for malignancy was estimated with the cumulative detection rate of neoplastic polyps.</P><P>Results: </P><P>Thirty-three cases (2.1%) were diagnosed with neoplastic polyps. The cumulative detection rates of neoplastic polyps were 1.7% at 1 year, 2.8% at 5 years, and 4% at 8 years after diagnosis. The size of GBP and the presence of gallstones were risk factors for neoplastic polyps. Polyps ≥ 10 mm had a 24.2 times greater risk of malignancy than polyps < 10 mm. However, 15 of 33 neoplastic polyps (45.5%) were < 10 mm at the time of diagnosis of GBP. During follow up in 36 (3.5%) of 1027 cases, an increase in size was detected; of these, nine (25%) had neoplastic polyps.</P><P>Conclusion: </P><P>Even small polyps have a risk of malignancy, and careful long-term follow up of GBP will help detect and treat early GBC.</P>
박정엽 ( Jeong Youp Park ) 대한소화기학회 2011 대한소화기학회지 Vol.57 No.4
Pancreatic cancer is a very lethal cancer. It is the 5th most common cause for cancer related mortality in Korea. Most of patients have unresectable pancreatic cancer, and systemic chemotherapy remains the only treatment option for them. Gemcitabine has been adopted as the standard first-line agent for advanced pancreatic cancer, but the progression free survival with gemcitabine is short. Many of patients need further treatment. We reviewed the clinical trials of second line chemotherapy for gemcitabine refractory pancreatic cancer and tried to show currently available treatment options. (Korean J Gastroenterol 2011;57:207-212)