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Antiadhesive effect and safety of oxidized regenerated cellulose after thyroidectomy
Kyoung Sik Park,Kyu Eun Lee,Do Hoon Ku,Su-Jin Kim,Won Seo Park2,Hoon Yub Kim3,,Mi Ra Kwon1,Yeo-Kyu Youn1 대한외과학회 2013 Annals of Surgical Treatment and Research(ASRT) Vol.84 No.6
Purpose: To evaluate the antiadhesive effects and safety of an oxidized regenerated cellulose (Interceed) after thyroidectomy. Methods: Seventy-six thyroidectomized patients were prospectively randomized into two groups with regard to the use of Interceed. We evaluated each group for their adhesive symptoms using four subjective and four objective items at the 2nd week, 3rd and 6th month after thyroidectomy. All patients were examined for vocal cord motility by indirect laryngoscope at each period. Results: Total adhesion scores at each postoperative follow-up period decreased with time, but were not significantly different in each group. The median score for swallowing discomfort for liquid was significantly lower in the Interceed group than in the control group 2 weeks after surgery. In addition, the severity of skin adhesion to the trachea was reduced in the Interceed group compared with the control group 6 months after surgery. During the study, there were no adverse effects or significant differences in postoperative complications between the groups. Conclusion: Interceed appeared to be safe and effective in improving neck discomfort at early postoperative periods and preventing skin adhesion to the trachea 6 months after thyroidectomy.
Won, Hyo Jun,Lee, Seong Mi,Kim, Doo-Young,Kwon, Ok-Kyoung,Park, Mi Hyeon,Kim, Jung-Hee,Ryu, Hyung Won,Oh, Sei-Ryang Elsevier 2019 Journal of chromatography. B, Analytical technolog Vol.1133 No.-
<P><B>Abstract</B></P> <P>Among the most critical needs of natural product chemistry is a complete library of pure reference substances. Some khellactone-type isomers of pharmacological importance are either still lacking reference substances or references are only available in limited amounts. To address this need, a recycling high-performance liquid chromatography (R-HPLC) strategy was adopted to improve the isomer separation efficiency from <I>Peucedanum japonicum</I>. Under the optimal isolation conditions, we obtained isomerically pure substances, particularly khellactone coumarins with different substituent groups. Isolated compounds attained purities greater than 98% as determined by ultra-performance liquid chromatography-charged aerosol detector (UPLC-CAD) and photodiode array (PDA). The structures of these compounds were identified according to their mass patterns and 2D NMR spectra. The proposed methods of single-column recycling obtained the same amount of product as conventional systems while being simple, increasing efficiency and reducing cost.</P> <P><B>Highlights</B></P> <P> <UL> <LI> 2–7 fractions of <I>P. japonicum</I> roots inhibited the synthesis of nitric oxide (NO). </LI> <LI> Fifteen coumarins (<B>1</B>–<B>15</B>) from the fractions were isolated using a recycling HPLC. </LI> <LI> Khellactone-type coumarin isomers were efficiently separated by R-HPLC. </LI> </UL> </P>
Antioxidant Effects of Apple Peel, Blueberry, Bread Containing Apple Peel and Blueberry
Mi Ja Chung,Ki Han Kwon,Heekyung Lim,Hyeon Yeong Han,Hye In Kang,Yang Seon Won,Yun A O,Eun Jin Mun,Ri Na So,Ye Na Lee,Yeong In Yun,San Ha Jeong,Nak Ju Sung,Soo Jung Lee 한국식품영양과학회 2015 한국식품영양과학회 학술대회발표집 Vol.2015 No.8
Kwon, Yun-Ju,Sohn, Mi-Jin,Kim, Chang-Jin,Koshino, Hiroyuki,Kim, Won-Gon American ChemicalSociety and AmericanSociety of Ph 2012 Journal of natural products Vol.75 No.2
<P>Flavimycins A (<B>1</B>) and B (<B>2</B>),novel dimeric1,3-dihydroisobenzofurans, were isolated as inhibitors of peptidedeformylase from cultures of <I>Aspergillus flavipes</I>. Their chemical structures were established by NMR and MS data analysis.Compounds <B>1</B> and <B>2</B> exist as epimeric mixturesat C-1 through fast hemiacetal–aldehyde tautomerism. Compounds <B>1</B> and <B>2</B> inhibited <I>Staphylococcus aureus</I> peptide deformylase with IC<SUB>50</SUB> values of 35.8 and 100.1μM, respectively. Consistent with their PDF inhibition, <B>1</B> showed two times stronger antibacterial activity than <B>2</B> on <I>S. aureus</I> including MRSA, with MIC valuesof 32–64 μg/mL.</P><P><B>Graphic Abstract</B> <IMG SRC='http://pubs.acs.org/appl/literatum/publisher/achs/journals/content/jnprdf/2012/jnprdf.2012.75.issue-2/np200720v/production/images/medium/np-2011-00720v_0003.gif'></P><P><A href='http://pubs.acs.org/doi/suppl/10.1021/np200720v'>ACS Electronic Supporting Info</A></P>
Changes in the Prevalence of Childhood Asthma in Seoul from 1995 to 2008 and Its Risk Factors
Kwon, Ji-Won,Kim, Byoung-Ju,Song, Younghwa,Seo, Ju-Hee,Kim, Tae-Hee,Yu, Jinho,Kim, Hyo Bin,Lee, So Yeon,Kim, Woo-Kyung,Kim, Kyoung-Won,Ji, Hye-Mi,Kim, Kyu-Earn,Kim, Ho,Hong, Soo-Jong The Korean Academy of Asthma, Allergy and Clinical 2011 Allergy, Asthma & Immunology Research Vol.3 No.1
<P><B>Purpose</B></P><P>To investigate the prevalence of asthma and determine its risk factors in elementary school students in Seoul.</P><P><B>Methods</B></P><P>A modified International Study of Asthma and Allergies in Childhood (ISAAC) questionnaire was used to survey 4,731 elementary school students from five areas in Seoul between April and October, 2008.</P><P><B>Results</B></P><P>In elementary school children, the lifetime and recent 12-month prevalence of wheezing were 11.7% and 5.6%, respectively. The lifetime prevalence of asthma diagnosis was 7.9%, and the recent 12-month prevalence of asthma treatment was 2.7%. Male sex (adjusted odds ratio [aOR], 1.90; 95% confidence interval [CI], 1.36-2.66), history of atopic dermatitis (AD) (aOR, 2.76; 95% CI, 1.98-3.84), history of allergic rhinitis (AR) (aOR, 3.71; 95% CI, 2.61-5.26), history of bronchiolitis before 2 years of age (aOR, 2.06; 95% CI, 1.39-3.07), use of antibiotics during infancy for >3 days (aOR, 1.88; 95% CI, 1.35-2.62), parental history of asthma (aOR, 2.83; 95% CI, 1.52-5.27), exposure to household molds during infancy (aOR, 1.84; 95% CI, 1.18-2.89), and the development or aggravation of asthma symptoms within 6 months after moving to a new house (aOR, 11.76; 95% CI, 5.35-25.86) were the independent risk factors for wheezing within 12 months.</P><P><B>Conclusions</B></P><P>The prevalence of wheezing and asthma in elementary school students in 2008 was similar to that in the past decade. Male sex, history of AD, history of AR, history of bronchiolitis before 2 years of age, parental asthma, use of antibiotics during infancy, exposure to molds in the house during infancy, and development or aggravation of asthma symptoms within 6 months after moving to a new house, could be risk factors for wheezing within 12 months.</P>