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Dentacolor Resin System의 색안정성 및 물흡수도에 관한 연구
고영무,정재헌,최유석 大韓齒科器材學會 1995 대한치과재료학회지 Vol.22 No.2
The purpose of this study was to measure the color stability and water sorption of Dentacolor resin system at various time intervals over 6 week period. Ten, 20 x 1mm discs of the resin specimen were prepared according to ADA specification No.27 and cured with a photo-polymerization equipment(Dentacolor XS and Unilux AC). The color parameters of L*, a*, b* were measured with a computerized colorimeter(Hunter Associates Laboratory Inc., USA) in the transmittance mode. The total color change(ΔE) occurred during two different time periods was calculated using the following equation: ?? The amount of water sorption measurements was done in accordance with ADA specification No.27 for one week in distilled water at 37 ±1℃ and then stored extended up to 6 weeks. The obtained results were as follows : l. At first week, total color difference(ΔE) value of Dentacolor resin system was 1.430 ±0.664. 2. It was found that the range of total color difference(ΔE) of Dentacolor resin system was between 0.5∼1.430 for 6 weeks. 3, The amount of water sorption for one week was 0.30 ±0.119mg/cm²and it was lower than the 0.7mg/cm²/week for type Ⅱ composites in ADA specification No.27. 4. The amount of water sorption of Dentacolor resin system after 6 weeks was much more than its amount of water sorption of the first week, but it was not significant difference(p>0.05).
경막 내 colistimethate 투여로 치료한 다제 내성 cinetobacter baumannii 뇌실염
홍유아,유진홍,김진진,모은영,안건희,정희경,김진석,이현정,정미향,윤승배 대한감염학회 2009 감염과 화학요법 Vol.41 No.4
Acinetobacter species is a non-fermentative aerobic gram-negative coccobacillus that is an important pathogen found in nosocomial infections. Recently, multi-drug resistant Acinetobacter baumannii (MDR-AB) infections have been increasing and pose a serious problem. Most such infections present as bacteremia, pneumonia, or a wound infection; however, CNS infections are very rare. We herein present a case of ventriculitis caused by MDR-AB in a 37-year old man after a neurosurgical intervention. The patient was successfully treated with intrathecal colistimethate.
Seok-Yeong Yu,Mi-Bo Kim,Young-Ki Park,Minkyung Bae,강현주,Siqi Hu,Tho X. Pham,Ryan Carpenter,Jungwoo Lee,이옥환,Ji-Young Lee,Young-Cheul Kim 한국식품영양과학회 2021 Journal of medicinal food Vol.24 No.6
Obesity-induced inflammation in adipose tissue (AT) promotes the development of metabolic dysregulations by increasing macrophage recruitment in the stromal vascular fraction (SVF). The activation of nuclear factor-κB (NF-κB) signaling in macrophages serves as a pivotal mediator of AT inflammatory responses by increasing the expression of proinflammatory genes in obesity. Given the purported anti-inflammatory effects of berry consumption in humans, we evaluated if anthocyanin-rich aronia berry extract (ARN) can prevent obesity-induced AT inflammation in vivo. We also examined whether ARN suppresses lipopolysaccharide (LPS)-induced NF-κB activation in RAW 264.7 macrophages and mouse bone marrow-derived macrophages (BMDMs). Male C57BL/6J mice were fed a low-fat diet, a high-fat (HF), and high-sucrose (HS) diet or HF/HS diet supplemented with 0.2% ARN (HF/HS + ARN) for 14 weeks. Compared to HF-/HS-fed mice, ARN supplementation tended to decrease fasting serum glucose (P = .07). Furthermore, ARN supplementation significantly inhibited the phosphorylation of NF-κB p65 in epididymal AT with a concomitant decrease in the expression of Cd11b and Tnfα mRNAs in epididymal SVF isolated, compared with those from HF-/HS-fed mice. Consistent with these in vivo findings, ARN treatment significantly decreased the phosphorylation of p65 in LPS-stimulated RAW 264.7 macrophages and BMDMs. Moreover, ARN suppressed LPS-induced mRNA expression of inflammation mediators (iNos, Cox-2, Tnfα, Mcp-1, and Il-6) and glycolysis markers (Glut1, G6pdh, and Hk1) in both cell types. Taken together, our in vivo and in vitro results suggest that ARN supplementation may attenuate obesity-induced AT inflammation by inhibiting NF-κB signaling and glycolytic pathway in macrophages.
유석영 ( Seok Yeong Yu ),이영준 ( Youg Jun Lee ),강석남 ( Suk Nam Kang ),이성갑 ( Seong Kap Lee ),장중영 ( Jung Young Jang ),이효구 ( Hyo Ku Lee ),임정호 ( Jeong Ho Lim ),이옥환 ( Ok Hwan Lee ) 한국식품저장유통학회(구 한국농산물저장유통학회) 2013 한국식품저장유통학회지 Vol.20 No.2
본 연구는 홍화씨의 식품학적 성분 및 항균활성을 분석하였다. 홍화씨의 수분함량은 5.58±0.09%, 조단백질 37.16±0.85%, 조회분 3.52±0.04%, 조지방 13.69±8.98%, 탄수화물 40.05%이었다. 홍화씨의 총 아미노산은 391.99mg%이고, 이중 필수아미노산의 함량은 122.97 mg%이었다. 홍화씨의 아미노산 중 alanine (75.43 mg%), arginine (37.97mg%) 및 aspartic acid (33.24mg%)을 많이 함유하고 있었다. 홍화씨의 주요 유리당은 fructose가 3.29%이었고, linoleicacid (C18:2)는 약 79.46%의 비율을 차지하여 홍화씨의 조지방 중 가장 많은 것으로 나타났다. 또한, Oleic acid (C18:1)도 약 40.42%를 함유하여 불포화지방산의 함유량도 매우 높게 나타났다. 홍화씨의 무기질 함량 측정 결과, K 및 Ca의 함량이 1,528 및 1,005 mg%으로 가장 많이 함유되어 있었다. 총 페놀 및 총 플라보노이드 함량은 55.52±0.99 mg GAE/g, 78.69±0.91 mg QE/g으로 나타났다. 홍화씨의 항균활성은 농도가 증가함에 따라 Staphylococeus aureus, Salmonella typhimurium, Escheria coli, Candida albicans, Bacillus cereus, Listeria monocytogenes, Vibrio parahaemolyticus 및 Clustridium perfringens 균에 대한 항균 효과가 높아지는 것으로 나타났다. This study was conducted to investigate die Physicochemical characteristic of Cart/minus tinctorius L seed and to assess its total phenol content total flavonoids content and antimicrobial activity. The moisture, crude protein, crude fat crude ash and carbohydrates of the Cars/minus tinctorius L seed were 5.58, 37.16, 13.69, 3.52. and 40.05%, respectively. Total amino acid in Carthanmus tincrorli6 L seed was 391.99 mg% The major free sugar of Cart/minus tinctorius L seed were fructose(3.29%) and sucrose( l.74%) Linoleic acid(79.46% was a major fatty acids in the crude fat of Can/minus tinctorius L seed. The K and Ca contents were the highest in Carthamus tinctorius L seed. Total phenol and total flavonoids contents of the ethanolic extract were 55.52 ± 0.99 mg GAE/g and 78.69 ± 0.91 mg QE/g, respectively. The extract from Carthamus tinctorius L seed showed growth inhibitory effect on Staphylococcus aureus, Salmonella typhimurium, Escheria coil, Candida albicans, Bacillus cereus, Listeria monocytogenes, Vibrio parahaemolyticus, and Clustridium perfringens. These results indicate that the Carthamus tinctorius L. Seed extract can inhibit food pathogen associated with total phenol and total flavonoids contents.