http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
( Mi-ok Ko ),( Mi-bo Kim ),( Sang-bin Lim ) 한국미생물 · 생명공학회 2016 Journal of microbiology and biotechnology Vol.26 No.12
We evaluated the potentials of 10 isothiocyanates (ITCs) from cruciferous vegetables and radish root hydrolysate for inhibiting the growth of oral pathogens, with an emphasis on assessing any structure-function relationship. Structural differences in ITCs impacted their antimicrobial activities against oral pathogens differently. The indolyl ITC (indol-3-carbinol) was the most potent inhibitor of the growth of oral pathogens, followed by aromatic ITCs (benzyl ITC (BITC) and phenylethyl ITC (PEITC)) and aliphatic ITCs (erucin, iberin, and sulforaphene). Sulforaphene, which is similar in structure, but has one double bond, showed higher antimicrobial activity than sulforaphane. Erucin, which has a thiol group, showed higher antimicrobial activity than sulforaphane, which has a sulfinyl group. BITC and iberin with a short chain exhibited higher antimicrobial potential than PEITC and sulforaphane with a longer chain, respectively. ITCs have strong antimicrobial activities and may be useful in the prevention and management of dental caries.
Enhanced Production of Phenolic Compounds from Pumpkin Leaves by Subcritical Water Hydrolysis
Ko, Jeong-Yeon,Ko, Mi-Ok,Kim, Dong-Shin,Lim, Sang-Bin The Korean Society of Food Science and Nutrition 2016 Preventive Nutrition and Food Science Vol.21 No.2
Enhanced production of individual phenolic compounds by subcritical water hydrolysis (SWH) of pumpkin leaves was investigated at various temperatures ranging from 100 to $220^{\circ}C$ at 20 min and at various reaction times ranging from 10 to 50 min at $160^{\circ}C$. Caffeic acid, p-coumaric acid, ferulic acid, and gentisic acid were the major phenolic compounds in the hydrolysate of pumpkin leaves. All phenolic compounds except gentisic acid showed the highest yield at $160^{\circ}C$, but gentisic acid showed the highest yield at $180^{\circ}C$. The cumulative amount of individual phenolic compounds gradually increased by 48.1, 52.2, and $78.4{\mu}g/g$ dry matter at $100^{\circ}C$, $120^{\circ}C$, and $140^{\circ}C$, respectively, and then greatly increased by $1,477.1{\mu}g/g$ dry matter at $160^{\circ}C$. The yields of caffeic acid and ferulic acid showed peaks at 20 min, while those of cinnamic acid, p-coumaric acid, p-hydroxybenzoic acid, and procatechuic acid showed peaks at 30 min. Antioxidant activities such as 2,2-diphenyl-1-picrylhydrazyl and ferric reducing antioxidant power values gradually increased with hydrolysis temperature and ranged from 6.77 to 12.42 mg ascorbic acid equivalents/g dry matter and from 4.25 to 8.92 mmol $Fe^{2+}$/100 g dry matter, respectively. Color $L^*$ and $b^*$ values gradually decreased as hydrolysis temperature increased from $100^{\circ}C$ to $140^{\circ}C$. At high temperatures ($160^{\circ}C$ to $220^{\circ}C$), L* and b* values decreased suddenly. The $a^*$ value peaked at $160^{\circ}C$ and then decreased as temperature increased from $160^{\circ}C$ to $220^{\circ}C$. These results suggest that SWH of pumpkin leaves was strongly influenced by hydrolysis temperature and may enhanced the production of phenolic compounds and antioxidant activities.
Prevalence of Oral Microbes in the Saliva of Oncological Patients
Mi-Sun Kang,Jong-Suk Oh,Hyeoung-Joon Kim,Hee-Nam Kim,Il-Kwon Lee,Hong-Ran Choi,Ok-Joon Kim,Young-Jong Ko,Won-Bong Lim,Hong-Ju Park,Min-Gi Yu,Kyung-Yi Chung,Seon-Mi Kim,Hoi-Soon Lim 대한미생물학회 2009 Journal of Bacteriology and Virology Vol.39 No.4
Ko, In Ok,Jung, Ki-Hye,Kim, Mi Hyun,Kang, Kyeung Jun,Lee, Kyo Chul,Kim, Kyeong Min,Noh, Insup,Lee, Yong Jin,Lim, Sang Moo,Kim, Jung Young,Park, Ji-Ae Hindawi 2017 Contrast media and molecular imaging Vol.2017 No.-
<P>The thymidine analogue 3′-deoxy-3′-[<SUP>18</SUP>F]fluorothymidine, or [<SUP>18</SUP>F]fluorothymidine ([<SUP>18</SUP>F]FLT), is used to measure tumor cell proliferation with positron emission tomography (PET) imaging technology in nuclear medicine. FLT is phosphorylated by thymidine kinase 1 (TK1) and then trapped inside cells; it is not incorporated into DNA. Imaging with <SUP>18</SUP>F-radiolabeled FLT is a noninvasive technique to visualize cellular proliferation in tumors. However, it is difficult to distinguish between [<SUP>18</SUP>F]FLT and its metabolites by PET imaging, and quantification has not been attempted using current imaging methods. In this study, we successfully acquired<I> in vivo </I><SUP>19</SUP>F spectra of natural or nonradioactive 3′-deoxy-3′-fluorothymidine ([<SUP>19</SUP>F]FLT) and its monophosphate metabolite (FLT-MP) in a tumor xenograft mouse model using 9.4T magnetic resonance imaging (MRI). This preliminary result demonstrates that <SUP>19</SUP>F magnetic resonance spectroscopy (MRS) with FLT is suitable for the<I> in vivo</I> assessment of tumor aggressiveness and for early prediction of treatment response.</P>
Prevalence of Oral Microbes in the Saliva of Oncological Patients
Kang, Mi-Sun,Oh, Jong-Suk,Kim, Hyeoung-Joon,Kim, Hee-Nam,Lee, Il-Kwon,Choi, Hong-Ran,Kim, Ok-Joon,Ko, Young-Jong,Lim, Won-Bong,Park, Hong-Ju,Yu, Min-Gi,Chung, Kyung-Yi,Kim, Seon-Mi,Lim, Hoi-Soon The Korean Society for Microbiology 2009 Journal of Bacteriology and Virology Vol.39 No.4
This study examined the prevalence of oral microbes in the saliva of oncological patients and healthy subjects. PCR was used to assess the frequency of oral microbes including 3 cariogenic bacteria, 5 periodontopathic bacteria and 4 Candida species in the saliva of 104 oncological patients and 52 healthy subjects. Among these microorganims, Streptococcus mutans, Fusobacterium nucleatum and Candida albicans were most frequently detected in both groups. There were no significant differences in the prevalence of cariogenic bacteria between the patient and healthy groups, whereas significant differences in the frequency of Porphyromonas gingivalis and Tannerella forsythia were observed between the two groups (p < 0.05). The prevalence of all five periodontopathogens was higher in the healthy group than in the patient group. The prevalence of C. albicans in patients was significantly higher than that of healthy group (p < 0.05). In conclusion, there were significant differences in the prevalence of P. gingivalis, T. forsythia and C. albicans between the oncological patient group and healthy group.