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Polymorphisms in cancer-related pathway genes and lung cancer
Lee, Shin Yup,Kang, Hyo-Gyoung,Choi, Jin Eun,Jung, Deuk Kju,Lee, Won Kee,Lee, Hyun Chul,Lee, So Yeon,Yoo, Seung Soo,Lee, Jaehee,Seok, Yangki,Lee, Eung Bae,Cha, Seung Ick,Cho, Sukki,Kim, Chang Ho,Lee, European Respiratory Society 2016 The European respiratory journal Vol.48 No.4
<P>We evaluated the associations between potentially functional variants in a comprehensive list of cancer-related genes and lung cancer in a Korean population.</P><P>A total of 1969 potentially functional single nucleotide polymorphisms (SNPs) of 1151 genes involved in carcinogenesis were evaluated using an Affymetrix custom-made GeneChip in 610 nonsmall cell lung cancer patients and 610 healthy controls. A replication study was conducted in an independent set of 490 cases and 486 controls. 68 SNPs were significantly associated with lung cancer in the discovery set and tested for replication.</P><P>Among the 68 SNPs, three SNPs (corepressor interacting with RBPJ 1 (<I>CIR1</I>) rs13009079T>C, ribonucleotide reductase M1 (<I>RRM1</I>) rs1465952T>C and solute carrier family 38, member 4 (<I>SLC38A4</I>) rs2429467C>T) consistantly showed significant associations with lung cancer in the replication study. In combined analysis, adjusted odds ratio for <I>CIR1</I> rs13009079T>C, <I>RRM1</I> rs1465952T>C and <I>SLC38A4</I> rs2429467C>T were 0.69, 0.71 and 0.73, respectively (p=4×10<SUP>−5</SUP>, 0.01 and 0.001, respectively) under the dominant model. The relative mRNA expression level of <I>CIR1</I> was significantly associated with rs13009079T>C genotypes in normal lung tissues (ptrend=0.03).</P><P>These results suggest that the three SNPs, particularly <I>CIR1</I> rs13009079T>C, may play a role in the pathogenesis of lung cancer.</P>
( Jaehee Lee ),( Deok Heon Lee ),( Ji Eun Park ),( Yong Hoon Lee ),( Sun Ha Choi ),( Hyewon Seo ),( Seung Soo Yoo ),( Shin Yup Lee ),( Seung-ick Cha ),( Jae Yong Park ),( Chang Ho Kim ) 대한내과학회 2024 The Korean Journal of Internal Medicine Vol.39 No.2
Background/Aims: Epidermal growth factor receptor (EGFR) mutation is important in determining the treatment strategy for advanced lung cancer patients with malignant pleural effusion (MPE). Contrary to serum carcinoembryonic antigen (S-CEA) levels, the associations between pleural fluid CEA (PF-CEA) levels and EGFR mutation status as well as between PF-CEA levels and treatment efficacy have rarely been investigated in lung adenocarcinoma patients with MPE. Methods: This retrospective study enrolled lung adenocarcinoma patients with MPE and available PF-CEA levels and EGFR mutation results. The patients were categorized based on PF-CEA levels: < 10 ng/mL, 10-100 ng/mL, 100-500 ng/mL, and ≥ 500 ng/mL. The association between PF-CEA levels and EGFR mutation status as well as their therapeutic impact on overall survival was compared among the four groups. Results: This study included 188 patients. PF-CEA level was found to be an independent predictor of EGFR mutation but not S-CEA level. The EGFR mutation rates were higher as the PF-CEA levels increased, regardless of cytology results or sample types. Among EGFR-mutant lung adenocarcinoma patients receiving EGFR-tyrosine kinase inhibitor (TKI) treatment, those with high PF-CEA levels had significantly better survival outcomes than those with low PF-CEA levels. Conclusion: High PF-CEA levels were associated with high EGFR mutation rate and may lead to a favorable clinical outcome of EGFR-TKI treatment in EGFR-mutant lung adenocarcinoma patients with MPE. These findings highlight the importance of actively investigating EGFR mutation detection in patients with suspected MPE and elevated PF-CEA levels despite negative cytology results.
Jaehee Lee,Seunghun Lee,Eunjong Kim,Hyunsoo Jo,Heekwon Ahn 한국토양비료학회 2015 한국토양비료학회지 Vol.48 No.2
The performance of chamber and bag digesters for solid state anaerobic digestion (SS-AD) of separated solid fraction of swine manure was investigated using lab-scale digester (4,460 mL total volume and 1,800 mL of effective volume) operating at 37°C for 63 days. The performance of two different digester types was evaluated in terms of the kinetic constants of methane production obtained from the Gompertz and Gaussian equations. Methane production potential of chamber and bag digester was 202 and 218 N·mL CH4/ g VS. Time to produce 95% methane production potential (T95) and calculated effective anaerobic digestion time were 55.5 days and 41.8 days for chamber digester and 52.8 days and 43.5 days for bag digester, respectively. Our results reveal that the performance was not significantly different between chamber and bag digester.
Lee, Ji-Young,Kim, Bong Jo,Sim, Gyujin,Kim, Gyu-Tae,Kang, Dawon,Jung, Jae Hun,Hwa, Jeong Seok,Kwak, Yeon Ju,Choi, Yeon Jin,Park, Young Sook,Han, Jaehee,Lee, Cheol Soon,Kang, Kee Ryeon The Korean Academy of Medical Sciences 2011 JOURNAL OF KOREAN MEDICAL SCIENCE Vol.26 No.6
<P>The influence of spinal cord injury (SCI) on protein expression in the rat urinary bladder was assessed by proteomic analysis at different time intervals post-injury. After contusion SCI between T9 and T10, bladder tissues were processed by 2-DE and MALDI-TOF/MS at 6 hr to 28 days after SCI to identify proteins involved in the healing process of SCI-induced neurogenic bladder. Approximately 1,000 spots from the bladder of SCI and sham groups were visualized and identified. At one day after SCI, the expression levels of three protein were increased, and seven spots were down-regulated, including heat shock protein 27 (Hsp27) and heat shock protein 20 (Hsp20). Fifteen spots such as S100-A11 were differentially expressed seven days post-injury, and seven proteins including transgelin had altered expression patterns 28 days after injury. Of the proteins with altered expression levels, transgelin, S100-A11, Hsp27 and Hsp20 were continuously and variably expressed throughout the entire post-SCI recovery of the bladder. The identified proteins at each time point belong to eight functional categories. The altered expression patterns identified by 2-DE of transgelin and S100-A11 were verified by Western blot. Transgelin and protein S100-A11 may be candidates for protein biomarkers in the bladder healing process after SCI.</P>
Lee, Jaehee,Lee, Seunghun,Kim, Eunjong,Jo, Hyunsoo,Ahn, Heekwon 한국토양비료학회 2015 한국토양비료학회지 Vol.48 No.2
The performance of chamber and bag digesters for solid state anaerobic digestion (SS-AD) of separated solid fraction of swine manure was investigated using lab-scale digester (4,460 mL total volume and 1,800 mL of effective volume) operating at $37^{\circ}C$ for 63 days. The performance of two different digester types was evaluated in terms of the kinetic constants of methane production obtained from the Gompertz and Gaussian equations. Methane production potential of chamber and bag digester was 202 and $218N{\cdot}mL$ $CH_4/g$ VS. Time to produce 95% methane production potential (T95) and calculated effective anaerobic digestion time were 55.5 days and 41.8 days for chamber digester and 52.8 days and 43.5 days for bag digester, respectively. Our results reveal that the performance was not significantly different between chamber and bag digester.
Lee, Jae Yeon,Yoo, Seung Soo,Kang, Hyo-Gyoung,Jin, Guang,Bae, Eun Young,Choi, Yi Young,Choi, Jin Eun,Jeon, Hyo-Sung,Lee, Jaehee,Lee, Shin Yup,Cha, Seung-Ick,Kim, Chang Ho,Park, Jae Yong The Korean Academy of Medical Sciences 2012 JOURNAL OF KOREAN MEDICAL SCIENCE Vol.27 No.12
<P>A genome-wide association study has identified the 15q25 region as being associated with the risk of chronic obstructive pulmonary disease (COPD) in Caucasians. This study intended as a confirmatory assessment of this association in a Korean population. The rs6495309C > T polymorphism in the promoter of nicotinic acetylcholine receptor alpha subunit 3 (<I>CHRNA3</I>) gene was investigated in a case-control study that consisted of 406 patients with COPD and 394 healthy control subjects. The rs6495309 CT or TT genotype was associated with a significantly decreased risk of COPD when compared to the rs6495309 CC genotype (adjusted odds ratio = 0.69, 95% confidence interval = 0.50-0.95, <I>P</I> = 0.023). The effect of the rs6495309C > T on the risk of COPD was more evident in moderate to very severe COPD than in mild COPD under a dominant model for the variant T allele (<I>P</I> = 0.024 for homogeneity). The <I>CHRNA3</I> rs6495309C > T polymorphism on chromosome 15q25 is associated with the risk of COPD in a Korean population.</P>
( Jaehee Mun ),( Seokyung Kim ),( Eun Ji Lee ),( Soo Jin Park ),( Joo-hyuk Son ),( Maria Lee ),( Tae-wook Kong ),( Hee Seung Kim ),( Jiheum Paek ),( Hyun Hoon Chung ),( Suk-joon Chang ),( Jae Weon Kim 대한산부인과학회 2020 대한산부인과학회 학술대회 Vol.106 No.-
Objective: Cremophor-free polymeric micelle formulation of paclitaxel (Genexol-PM) plus carboplatin (PM/C) has been reported to have a non-inferior effect with tolerable toxicities when compared to the standard paclitaxel plus carboplatin (P/C) in ovarian cancer. However, there is still a lack of evidence on the effect of an increased dose of paclitaxel in PM/C, especially, when compared to P/C and paclitaxel plus carboplatin with bevacizumab (P/C/B) in advanced high-grade serous ovarian cancer (HGSO). Thus, we performed a prospective cohort study on PM/C and compared the effect of PM/C with historical control of P/C and P/C/B in HGSO. Methods: We performed a prospective cohort study between October 2015 and June 2019. Patients aged 20 or more years with FIGO stage III-IV HGSO who received PM (260 mg/m<sup>2</sup>)/C (AUC 5) after primary debulking surgery (PDS) were enrolled. We collected clinico-pathologic data from a retrospective cohort when P (175 mg/m<sup>2</sup>)/C (AUC 5) or P (175 mg/m<sup>2</sup>)/C (AUC 5)/B (15 mg/kg) were used as adjuvant treatment after PDS during the same period. Results: A total of 104 patients were enrolled, and 17, 28, and 59 received P/C, P/C/B and, PM/C respectively (Table 1). Complete response was significantly highest in PM/C (29.4 vs. 39.3 vs. 61%, P=0.030; Table 1). Progression-free survival was longest in PM/C (Figure 1) and multivariate analysis showed that gross residual tumor after PDS and P/C were poor prognostic factors (adjusted hazard ratios, 2.415 and 2.751; 95% confidence intervals, 1.172-4.976 and 1.214-6.236; Table 2). Even after adjustment of the patient pool to those with no gross residual tumor after PDS, multivariate analysis still showed that P/C lowered the survival curve (adjusted hazard ratio, 3.342; 95% confidence interval, 1.143-9.777; Table 2). Conclusion: This interim analysis showed that PM/C had a comparable effect to P/C/B for stage III-IV HGSO patients who received optimal cytoreduction during PDS.
Lee Jaehee,Park Sunji,Park Ji Eun,Choi Sun Ha,Seo Hyewon,Yoo Seung Soo,Lee Shin Yup,Kim Yu Kyung,Cha Seung-Ick,Park Jae Yong,Park Tae In,Kim Chang Ho 대한의학회 2021 Journal of Korean medical science Vol.36 No.1
The cause of epithelioid granulomatous inflammation varies widely depending on the affected organ, geographic region, and whether the granulomas morphologically contain necrosis. Compared with other organs, the etiological distribution and morphological patterns of pleural epithelioid granulomas have rarely been investigated. We evaluated the final etiologies and morphological patterns of pleural epithelioid granulomatous inflammation in a tuberculosis (TB)-prevalent country. Of 83 patients with pleural granulomas, 50 (60.2%) had confirmed TB pleurisy (TB-P) and 29 (34.9%) had probable TB- P. Four patients (4.8%) with non-TB-P were diagnosed. With the exception of microbiological results, there was no significant difference in clinical characteristics and granuloma patterns between the confirmed TB-P and non-TB-P groups, or between patients with confirmed and probable TB-Ps. These findings suggest that most pleural granulomatous inflammation (95.2%) was attributable to TB-P in TB-endemic areas and that the granuloma patterns contributed little to the prediction of final diagnosis compared with other organs.