1.Role of Intestinal Microbiota in Metabolism of Voglibose In Vitro and In Vivo
Mahesh Raj NEPAL ; Mi Jeong KANG ; Geon Ho KIM ; Dong Ho CHA ; Ju-Hyun KIM ; Tae Cheon JEONG
Diabetes & Metabolism Journal 2020;44(6):908-918
Voglibose, an α-glucosidase inhibitor, inhibits breakdown of complex carbohydrates into simple sugar units in intestine. Studies showed that voglibose metabolism in the liver might be negligible due to its poor intestinal absorption. Numerous microorganisms live in intestine and have several roles in metabolism and detoxification of various xenobiotics. Due to the limited information, the possible metabolism of voglibose by intestinal microbiota was investigated For the The The present results indicate that voglibose would be metabolized by the intestinal microbiota, and that this metabolism might be pharmacodynamically critical in lowering blood glucose levels in mice.
2.First Report of Botrytis cinerea as a Postharvest Pathogen of Blueberry in Korea.
Jin Hyeuk KWON ; Mi Geon CHEON ; Okhee CHOI ; Jinwoo KIM
Mycobiology 2011;39(1):52-53
Gray mold of blueberry caused by Botrytis sp. is reported for the first time in Korea. A detailed description of the fungus is given, along with its rDNA internal transcribed spacer sequence. The fungus was identified as Botrytis cinerea based on mycological characteristics and molecular data.
Blueberry Plant
;
Botrytis
;
DNA, Ribosomal
;
Fungi
;
Korea
3.Prostate-Specific Antigen Density as a Powerful Predictor of Extracapsular Extension and Positive Surgical Margin in Radical Prostatectomy Patients with Prostate-Specific Antigen Levels of Less than 10 ng/ml.
Jin Seok CHANG ; Hoon CHOI ; Young Seop CHANG ; Jin Bum KIM ; Mi Mi OH ; Du Geon MOON ; Jae Hyun BAE ; Jun CHEON
Korean Journal of Urology 2011;52(12):809-814
PURPOSE: To assess the ability of preoperative variables to predict extracapsular extension (ECE) and positive surgical margin (PSM) in radical prostatectomy patients with prostate-specific antigen (PSA) levels of less than 10 ng/ml. MATERIALS AND METHODS: From January 2008 to December 2009, 121 patients with prostate cancer with PSA levels lower than 10 ng/ml who underwent radical prostatectomy were enrolled in the study. The differences in clinical factors (age, PSA, PSA density [PSAD], digital rectal examination [DRE] positivity, positive magnetic resonance imaging [MRI], Gleason sum, positive core number, and positive biopsy core percentage) with ECE and the presence of positive margins were determined and their independent predictive significances were analyzed. RESULTS: The ECE-positive patients had higher PSA, PSAD, and MRI-positive percentages, and PSM patients had higher PSA, PSAD, MRI-positive percentages, Gleason sum, and positive biopsy core percentages for prostate cancer. In the multivariate analysis, PSAD and MRI positivity were the best independent predictors for ECE, and PSA and PSAD were the best independent predictors of PSM. By receiver operating characteristic curve analysis, PSAD had better discriminative area under the curve value than did PSA for ECE (0.765 vs 0.661) and PSM (0.780 vs 0.624). The best predictive PSAD value was 0.29 ng/ml/cc for ECE and 0.27 ng/ml/cc for PSM. CONCLUSIONS: PSAD has relevance to ECE (plus MRI findings) and PSM (plus PSA). PSAD might be a powerful predictor of ECE and PSM preoperatively in patients undergoing a radical prostatectomy with PSA levels of less than 10 ng/ml.
Biopsy
;
Digital Rectal Examination
;
Humans
;
Magnetic Resonance Imaging
;
Multivariate Analysis
;
Prostate-Specific Antigen
;
Prostatectomy
;
Prostatic Neoplasms
;
ROC Curve