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      • Trabecular Bone Ratio of Mandible Using Micro-Computed Tomography in Korean

        Won,,Sung-Yoon,Kim,,Sung-Hyun,Kim,,Sung-Tae,Paik,,Doo-Jin,Song,,Wu-Chul,Koh,,Ki-Seok,Chung,,Moon-Kyu,Kim,,Hee-Jin,Hu,,Kyung-Seok Mutaz B. Habal, MD 2010 JOURNAL OF CRANIOFACIAL SURGERY - Vol.21 No.3

        Cortical bone and trabecular portion play important roles in maintaining the general structure of bone. It has been reported that a decrease in bone mineral density is related with increasing age, sex, and teeth loss. However, most of the studies were done with conventional radiographic analysis. In addition, data from Korean population are rare. The aim of this study was to analyze trabecular pattern of the mandible using micro-computed tomography. Thirty-nine specimens of the mandible were prepared. Specimens were scanned with micro-computed tomography and reconstructed three-dimensionally. Sections were made parallel to the axis of each tooth. Trabecular bone ratio (TBR) was measured. Data were statistically analyzed with 1-way analysis of variance (α = 0.05). There was a statistically significant difference of TBR between dentate and edentulous mandibles in the molar region. Trabecular bone ratio of edentulous mandible in males was greater than that in females. Trabecular bone ratio of dentate mandibles reduced regularly with increasing age, whereas that of edentulous mandibles did not. It could be concluded that there were statistically significant differences in TBR according to presence of tooth, sex, and increasing age on specific areas.

      • SCIESCOPUSKCI등재

        Zoonotic Intestinal Trematodes in Stray Cats (Felis catus) from Riverside Areas of the Republic of Korea

        Shin,,Sung-Shik,Oh,,Dae-Sung,Ahn,,Kyu-Sung,Cho,,Shin-Hyeong,Lee,,Won-Ja,Na,,Byoung-Kuk,Sohn,,Woon-Mok The Korean Society for Parasitology 2015 The Korean Journal of Parasitology Vol.53 No.2

        The present study was performed to survey the infection status of zoonotic intestinal trematode (ZIT) in stray cats from 5 major riverside areas in the Republic of Korea. Total 400 stray cats were captured with live-traps in riverside areas of Seomjingang ('gang' means river) (203 cats) from June to October 2010, and of Yeongsangang (41), Nakdonggang (57), Geumgang (38), and Hangang (61 cats) from June to October 2011, respectively. Small intestines resected from cats were opened with a pair of scissors in a beaker with 0.85% saline and examined with naked eyes and under a stereomicroscope. More than 16 ZIT species were detected in 188 (92.6%) cats from Seomjingang areas, and the number of worms recovered was 111 per cat infected. In cats from riverside areas of Yeongsangang, Nakdonggang, Geumgang, and Hangang, more than 9, 8, 3, and 5 ZIT species were recovered, and the worm burdens were 13, 42, 11, and 56 specimens per infected cat, respectively. As the members of family Heterophyidae, more than 10 species, i.e., Metagonimus spp., Pygidiopsis summa, Heterophyes nocens, Stellantchasmus falcatus, Heterophyopsis continua, Acanthotrema felis, Centrocestus armatus, Procerovum varium, Cryptocotyle concava, and Stictodora lari, were recovered. More than 5 species of echinostomes, i.e., Echinostoma hortense, Echinochasmus japonicus, Echinochasmus sp., Echinoparyphium sp., and unidentified larval echinostomes, were collected. Plagiorchis spp. were detected in cats from areas of Seomjingang and Yeongsangang. From the above results, it has been confirmed that stray cats in 5 major riverside areas of Korea are highly infected with various species of ZITs.

      • KCI등재

        Comparison of Grip and Pinch Strength between Dominant and Nondominant Hand according to Type of Handedness of Female College Students

        JI,Sung,Kim,Sa,Gyeom,Lee,Sung,Kyu,Park,Sang,Min,Lee,Bo,Kyung,Kim,Jung,Hyun,Choi,Soon,Hee,Kim 국제물리치료학회 2011 Journal of International Academy of Physical Ther Vol.2 No.1

        In using both hands, everyone dominantly use one hand and it is called left-handedness or right-handedness person. Measurements of grip and pinch strength provide objective indexes to represent functional integrity of the upper extremity. This study was conducted for thirty female college students(19 right-handedness and 11 lefthandedness). For assessment of the type of handedness, questionnaire was used; for grip strength, Jamar dynamometer was used; for pinch strength, Jamar pinch gauge was used. In right handedness, the grip and pinch strength of the dominant right hand was significantly higher than those of the non-dominant hand. In addition, regular exercises were shown to give influences on reduction of strength gaps between dominant and non-dominant hands. In both groups of left and right handedness, the grip and pinch strength of the dominant hand were significantly higher than those of the non-dominant hand, and regular exercises were shown to give influences on reduction of strength gaps between dominant and non-dominant hand.

      • Significance of preoperative HbA1c level in patients with diabetes mellitus and clinically localized prostate cancer

        Hong,,Sung,Kyu,Lee,,Seung,Tae,Kim,,Sung,Soo,Min,,Kyung,Eun,Byun,,Seok-Soo,Cho,,Sung,Yong,Choe,,Gheeyoung,Lee,,Sang,Eun Wiley Subscription Services, Inc., A Wiley Company 2009 The Prostate Vol.69 No.8

        <B>INTRODUCTION</B><P>We investigated potential relationships of history of diabetes mellitus (DM) and glycemic control, represented by hemoglobin A1c (HbA1c) level, with characteristics of tumor among patients who received radical prostatectomy (RP) for clinically localized prostate cancer.</P><B>METHODS</B><P>We reviewed data of 740 patients who underwent RP for clinically localized prostate cancer between 2004 and 2008 without receiving preoperative radiation or hormonal treatment. Univariate and multivariate logistic regression analyses addressed the associations of history of DM and HbA1c level with known prognostic variables of prostate cancer.</P><B>RESULTS</B><P>No significant differences were observed in various preoperative and pathological parameters between those with (n = 89) and without DM (n = 651). When only the subjects with DM were divided into two groups (group 1 and 2) according to HbA1c level (<6.5% vs. ≥6.5%), group 2 demonstrated significantly higher rate of extraprostatic extension of tumor (P = 0.043) and high (≥7) pathological Gleason score (P = 0.005) than group 1. Also among those with DM, HbA1c level was observed to be an independent predictor for high pathologic Gleason score (P = 0.010) and extraprostatic extension of tumor (P = 0.035), respectively in multivariate analyses.</P><B>CONCLUSION</B><P>Although simple history of having DM may not be a significant factor regarding aggressiveness of clinically localized prostate cancer, the glycemic control, as represented by HbA1c level, may be a useful preoperative predictor of aggressive tumor profile among patients with DM who are also diagnosed with clinically localized prostate cancer. Prostate 69: 820–826, 2009. © 2009 Wiley-Liss, Inc.</P>

      • SCIESCOPUSKCI등재

        Effects of Kimchi Extract and Temperature on Embryostasis of $Ascaris$ $suum$ Eggs

        Kim,,Jin-Sung,Oh,,Dae-Sung,Ahn,,Kyu-Sung,Shin,,Sung-Shik The Korean Society for Parasitology 2012 The Korean Journal of Parasitology Vol.50 No.1

        To determine the effects of kimchi extracts at different temperatures on larval development, $Ascaris$ $suum$ eggs were mixed with soluble part of 7 different brands of commercially available kimchi and preserved at either $5^{\circ}C$ or $25^{\circ}C$ for up to 60 days. $A.$ $suum$ eggs incubated at $25^{\circ}C$ showed marked differences in larval development between kimchi extract and control group. While all eggs in the control group completed embryonation by day 21, only 30% of the eggs in the kimchi extract group became embryonated by day 36 and about 25% never became larvated even at day 60. At $5^{\circ}C$, however, none of the eggs showed larval development regardless of the incubation period or type of mixture group. To determine the survival rate of $A.$ $suum$ eggs that showed no embryonation after being preserved at $5^{\circ}C$, eggs preserved in kimchi extracts for 14, 28, and 60 at $5^{\circ}C$ were re-incubated at $25^{\circ}C$ for 3 weeks in distilled water. While all eggs in the control group became larvated, eggs in the kimchi extract group showed differences in their embryonation rates by the incubation period; 87.4 % and 41.7% of the eggs became embryonated after being refrigerated for 14 days and 28 days, respectively. When refrigerated for 60 days, however, no eggs mixed in kimchi extract showed larval development. Our results indicate that embryogenesis of $A.$ $suum$ eggs in kimchi extract was affected by duration of refrigeration, and that all eggs stopped larval development completely in kimchi kept at $5^{\circ}C$ for up to 60 days.

      • KCI등재

        鮮初斥佛論에 미친 韓愈의 영향에 대하여

        진성규(Jin, Sung-Kyu) 한국사학사학회 2007 韓國史學史學報 Vol.0 No.16

        '스콜라' 이용 시 소속기관이 구독 중이 아닌 경우, 오후 4시부터 익일 오전 7시까지 원문보기가 가능합니다.

        This paper aims to examine the influence of Han-you upon anti-Buddhism argument of Confucianists in the early Chosun dynasty. During the establishment of Chosun, Sung Confucianism became dominant ideology to rule the country. The SungyouEokbul(to revere confucianism and reject Buddhism) policy was one of its results. Though Choseon was established, it was hard to remove Buddhism which had been a state religion during former Dynasty. Confucianists especially in the early Choseon Dynasty needed a theory to exclude Buddhism because they had a sense of duty to build political system based on Sung Confucianism. This necessity encourages them to use Han-you's anti-Buddhism argument. Sejo, one of the kings in the early Chosun dynasty, emphasized reading Han-you's articles. He regarded Han-you's writings as important process in order to write Pyojeonmun(an article of suggestion written by subject to the king) or great sentences. Sejo, who was fond of Buddhism, appeared an unconventional attitude which encouraged his subjects to lecture Han-you's <Wondo> with <Lao-tse>, <Zhuangzi>, and <Byeongseo>. The intention of his behavior was probably to reveal some unreasonableness of Han-you's antiBuddhism argument. Seongjong had a lot of interest in Han-you. His inclination was well indicated in that he sat questions about Han-you's banishment as subject of poem in gwageo sihem(civil service examination) and personally draw pictures about it on a folding screen which has twelve panel. I've judged that those attention of kings to Han-you were adequate reasons to attract interest of Confucianists toward Han-you. Han-you unfolds his theory of anti-Buddhism argument mainly in <Ganbulgolpyo> and <Wondo>. The core of his argument is started with the insistence that he cannot basically revere Buddhism because the religion of barbarians doesn't contain precepts from late kings. Using this perspective, it is reasonable that the Confucianists understand Buddhism as something that devastates their traditional grade of ranks of Gunshinbuja(sovereign and subject, father and son), prohibits Sangsaengsangyang(compatibility and encouragement), let people get an idle life, shorten persistence of the country. But there is little logical element to support this argument. Han-you himself also knew that it was hard to fight against Buddhism theoretically. Based on Han-you's opinion, the anti-Buddhism argument of Confucianists in the early Chosun dynasty made no rational progress. The reason why they followed his opinion seems to be their situation which was sympathetically identical with him. Han-you wa s to the man who felt keenly the responsibility to promote revival of Sung Confucianism as the Confucianists in the early Chosun dynasty were to the men who had a duty to protect Sung Confucianism as ruling system. That necessity enabled Han-you to affect them deeply through 600 years of time and space.

      • Poster Session:PS 1078;Gastroenterology (Gastrointestinal Tract):Risk Factors for Small Bowel Bleeding in Nsaid Users

        ( Kyu Man Cho ), ( Jong Sun Rew ), ( Sun Young Park ), ( Sung Uk Lim ), ( Chung Hwan Jun ), ( Chang Hwan Park ), ( Hyun Soo Kim ), ( Sung Kyu Choi ) 대한내과학회 2014 대한내과학회 추계학술대회 Vol.2014 No.1

        Background: Nonsteroidal anti-infiammatory drugs (NSAIDs) induced small bowel damages such as bleeding, perforation, stricture, and protein-losing enteropathy are not well known. Nowadays, the incidence of NSAIDs induced enteropathy may be increased. However, unlike, NSAIDs-associated upper GI bleeding, the burden, risk factors, pathogenesis, and prevention for small bowel bleeding (SBB) associated with NSAIDs use are poorly understood. The aim of study was to evaluate the risk factors of SBB in NSAID users. Methods: We retrospectively compared the record of 429 patients receiving NSAIDs (31 cases with SBB who underwent capsule endoscopy and 398 controls without previous bleeding events). We analyzed the clinical risk factors associated with SBB in NSAID users. Results: Capsule endoscopy demonstrated evidence of bleeding of the small intestine in 74. 2 % (23/31) of NSAID users. Eight patients among 31 cases showed anemia and positive stool occult blood test without bleeding evidence in upper endoscopy, colonoscopy and capsule endoscopy. The univariate logistic regression analysis suggested that old age (=70 years) and presence of hypertension, chronic kidney disease or ischemic heart disease were associated with SBB. And also, the use of aspirin was signifi cantly associated with SBB. Multivariate logistic regression analyses revealed old age (OR, 4. 68; 95% CI, 2. 02~10. 85; p<0. 0001) and use of aspirin (OR, 4. 94; 95% CI, 2. 02~12. 04; p<0. 0001) as independent risk factors of SBB in NSAID users. Conclusions: Old age and use of aspirin were the independent risk factors of SBB in NSAID users. It is necessary to do further study for the prevalence as well as risk factors for small bowel bleeding (SBB) with large scale cohort.

      • Performance Analysis of Two-Way Amplify and Forward Relaying with Adaptive Modulation over Multiple Relay Network

        Kyu-Sung,Hwang,Young-Chai,Ko,Alouini,,Mohamed-Slim IEEE 2011 IEEE TRANSACTIONS ON COMMUNICATIONS Vol.59 No.2

        <P>In this letter, we propose two-way amplify-and-forward relaying in conjunction with adaptive modulation in order to improve spectral efficiency of relayed communication systems while monitoring the required error performance. We also consider a multiple relay network where only the best relay node is utilized so that the diversity order increases while maintaining a low complexity of implementation as the number of relays increases. Based on the best relay selection criterion, we offer an upper bound on the signal-to-noise ratio to keep the performance analysis tractable. Our numerical examples show that the proposed system offers a considerable gain in spectral efficiency while satisfying the error rate requirements.</P>

      • Torque control during lingual anterior retraction without posterior appliances

        Sung-Seo,Mo,Seong-Hun,Kim,Sang-Jin,Sung,Kyu-Rhim,Chung,Yun-Sic,Chun,Yoon-Ah,Kook,Gerald,Nelson 대한치과교정학회 2013 대한치과교정학회지 Vol.43 No.1

        '스콜라' 이용 시 소속기관이 구독 중이 아닌 경우, 오후 4시부터 익일 오전 7시까지 원문보기가 가능합니다.

        Objective: To evaluate the factors that affect torque control during anterior retraction when utilizing the C-retractor with a palatal miniplate as an exclusive source of anchorage without posterior appliances. Methods: The C-retractor was modeled using a 3-dimensional beam element (0.9-mm-diameter stainless-steel wire) attached to mesh bonding pads. Various vertical heights and 2 attachment positions for the lingual anterior retraction hooks (LARHs) were evaluated. A force of 200 g was applied from each side hook of the miniplate to the splinted segment of 6 or 8 anterior teeth. Results: During anterior retraction, an increase in the LARH vertical height increased the amount of lingual root torque and intrusion of the incisors. In particular, with increasing vertical height, the tooth displacement pattern changed from controlled tipping to bodily displacement and then to lingual root displacement. The effects were enhanced when the LARH was located between the central and lateral incisors, as compared to when the LARH was located between the lateral incisors and canines. Conclusions: Three-dimensional lingual anterior retraction of the 6 or 8 anterior teeth can be accomplished using the palatal miniplate as the only anchorage source. Using LARHs at different heights or positions affects the quality of torque and intrusion.

      • PE-143: Case Series of Hepatitis A Virus Infection Associated with Hemophagocytic Lymphohistiocystosis Presenting as Liver Failure

        ( Kyu Man Cho ), ( Chung Hwan Jun ), ( Sung Hoon Jeong ), ( Sung Bum Cho ), ( Sung Kyu Choi ) 대한간학회 2016 춘·추계 학술대회 (KASL) Vol.2016 No.1

        Virus-associated hemophagocytic syndrome (VAHS) is reported to be a rare but serious complication in hepatitis A virus infections. High fever, cytopenia, elevated soluble IL-2, elevated ferritin, splenomegaly were initial important findings of VAHS which are not rare in patients with acute hepatitis A. Although hemophagocytosis associated with other types of virus infections is fatal, patients with HAV-AHS recovered well with timely steroid & immunosuppressive treatment. However, there is no consensus in the literature regarding the optimal treatment of VAHS until now. Here in, we encountered four patients with hepatitis A virus-associated hemophagocytic syndrome (HAV-AHS) who completely recovered with timely steroid treatment.

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