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( Kyoung-ho Song ),( Dong-min Kim ),( Hyunju Lee ),( Sin Young Ham ),( Sang-min Oh ),( Hyeonju Jeong ),( Jongtak Jung ),( Chang Kyung Kang ),( Ji Young Park ),( Yu Min Kang ),( Ji-yeon Kim ),( Jeong S 대한내과학회 2021 The Korean Journal of Internal Medicine Vol.36 No.1
Recently, the number of patients with coronavirus disease 2019 (COVID-19) who have tested positive for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), via the reverse transcription polymerase chain reaction (RT-PCR) test, after recovery has increased; this has caused a dilemma regarding the medical measures and policies. We evaluated the dynamics of viral load and anti-SARS-CoV-2 antibodies in four patients with positive RT-PCR results after recovery. In all patients, the highest levels of immunoglobulin G (IgG) and IgM antibodies were reached after about a month of the onset of the initial symptoms. Then, the IgG titers plateaued, and the IgM titers decreased, regardless of RT-PCR results. The IgG and IgM levels did not increase after the post-negative positive RT-PCR results in any of the patients. Our results reinforced that the post-negative positive RT-PCR results may be due to the detection of RNA particles rather than reinfection in individuals who have recovered from COVID-19.
( Kyoung Jin Shin ),( Jung Wook Chin ),( Dong Yup Hahn ),( Jae Hwan Lee ),( Hoo Sang Hwang ),( Dong Hwan Won ),( Jung Yeob Ham ),( Hyuk Jae Choi ),( Eun Soo Kang ),( Hi Young Kim ),( Moon Kyeong Ju ) 영남대학교 약품개발연구소 2012 영남대학교 약품개발연구소 연구업적집 Vol.22 No.0
Three new steroids 3-oxocholest-1,22-dien-12β-ol (1), 3-oxocholest-1,4-dien-20β-ol (2), 3-oxocholest-1,4-dien-12β-ol (3), and three known steroids (20S)-20-Hydroxyergosta-1,4,24(28)-trien-3-one (4) [7a], 5α,8α-Epidioxycholesta-6,22-dien-3β-ol (5) [10] and 5-cholestene-3β,12β-diol (6) [11] were isolated from a soft coral Dendronephthya gigantea. Their chemical structures and relative stereochemistry were elucidated by the analysis of HRMS and 2-D NMR spectroscopic data. The steroids 1 and 2 showed notable inhibitory activity against farnesoid X-activated receptor (FXR) with IC(50)`s 14 and 15μM. ⓒ 2012 Elsevier Inc. All rights reserve
함상희 ( Sang Hee Ham ),하석준 ( Seog Jun Ha ),박영민 ( Young Min Park ),조상현 ( Sang Hyun Cho ),조백기 ( Baik Kee Cho ),김경미 ( Kyoung Mee Kim ) 대한피부과학회 1998 대한피부과학회지 Vol.36 No.3
Traumatic fat necrosis is a localized reaction of panniculus resulting from blunt trauma occurring predominantly on large pendulous breasts in elderly females and on the face in children. The facial lesions in children need no treatment and therapeutic excision is not indicated because a reasonable cosmetic result comes from spontaneous healing in a year or more. The clinicians unfamiliar with this problem may have confusion in diagnosis and management. Herein we report a case of a three-year-old girl who presented with a 3 cm sized erythematous and bullous plaque on her right cheek. The diagnosis of traumatic fat necrosis was made following clinical and pathological findings. (Korean J Dermatol 1998;36(3): 551-553)
저분자량 헤파린 피하주사로 유발된 복직근초 혈종 및 골반강내 혈종
류성우 ( Sung Woo Ryu ),이민영 ( Min Young Lee ),함남석 ( Nam Seok Ham ),김경하 ( Kyoung Ha Kim ),이남수 ( Nam Su Lee ),원종호 ( Jong Ho Won ),박희숙 ( Hee Sook Park ) 대한내과학회 2013 대한내과학회지 Vol.85 No.5
Rectus sheath hematoma (RSH) is an uncommon condition caused by hemorrhage into the rectus sheath. RSH is characterized by abdominal pain and an abdominal mass. This condition is associated with old age, childbirth, abdominal surgery, severe coughing, severe sneezing, anticoagulation therapy, and/or coagulation disorders. We report herein a case of RSH and pelvic cavity hematoma that was induced by dalteparin injection in a 77-year-old woman with pulmonary embolism and deep vein thrombosis, and who was successfully treated by conservative management. (Korean J Med 2013;85:530-534)
Kang Kyoung-Ah,Lee Kyoung-Hwa,Chae Sung-Wook,Kim Jeong-Ki,Seo Jung-Yeon,Ham Yong-Ho,Lee Kee-Ho,Kim Bum-Joon,Kim Hee-Sun,Kim Dong-Hyun,Hyun Jin Won The Korean Society for Biotechnology and Bioengine 2006 Biotechnology and Bioprocess Engineering Vol.11 No.1
Telomerase activation is detected in most cancerous cells; hence, telomerase is a highly selective target for cancer therapy, which plays an important role in the apoptotic process. We have previously reported that the ginseng saponin metabolite, Compound K (20-O-D-glucopyranosyl-20(S)-protopanaxadiol, IH901), inhibits cell proliferation by inducing apoptosis and cell cycle arrest at the $G_1$ phase. The present study investigated the regulation of telomerase activity in Compound K treated U937 cells. Compound K treatment caused a reduction in telomerase activity and down-regulated the human telomerase reverse transcriptase (hTERT) gene, resulting in the decreased expressions of its protein, and of the c-Myc and Spl proteins (transcription factors of hTERT). These results indicate that the anticancer activity of Compound K could be mediated by inhibition of the telomerase activity.
반복적인 천음과 호흡곤란을 보인 영아에서 진단된 선천성 심, 폐기형 3례
남효경 ( Hyo Kyoung Nam ),라경숙 ( Kyong Suk La ),변정혜 ( Jung Hye Byeon ),최익선 ( Ic Sun Choi ),장기영 ( Gi Young Jang ),유영 ( Young Yoo ),정지태 ( Ji Tae Choung ),손창성 ( Chang Sung Son ),함수연 ( Soo Youn Ham ) 대한소아알레르기호흡기학회 2009 소아알레르기 및 호흡기학회지 Vol.19 No.2
Although laryngomalacia is the most common cause of congenital stridor in infancy, it is a benign, self-limited disease which usually resolves by the age of 18 months with no long-term sequelae. Nevertheless, infants who suffered from recurrent stridor and respiratory distress should be evaluated for other causes of stridor such as cardiopulmonary anomalies. We report 3 cases of infants who had recurrent stridor and respiratory distress from their early infancy. Case 1 had a double aortic arch and a tracheomalacia, case 2 had a hypoplasia of the right lung, and case 3 had a horseshoe lung as well as scimitar syndrome. Physicians should be alert for the possibility of the congenital cardiopulmonary abnormalities in infants with recurrent stridor and/or respiratory distress. [Pediatr Allergy Respir Dis(Korea) 2009; 19:183-190]
Bimodal Porous Gold Opals for Molecular Sensing
채원식,유현웅,Sung-Kyoung Ham,Myung-Jin Lee,Jin-Seung Jung,David B. Robinson 대한금속·재료학회 2013 ELECTRONIC MATERIALS LETTERS Vol.9 No.6
We have fabricated bimodal porous gold skeletons by double-templating routes using poly(styrene) colloidal opals as templates. The fabricated gold skeletons show a bimodal pore-size distribution, with small pores within spheres and large pores between spheres. The templated bimodal porous gold skeletons were applied in Raman scattering experiments to study sensing efficiency for probe molecules. We found that the bimodal porous gold skeletons showed obvious enhancement of Raman scattering signals versus that of the unimodal porous gold which only has interstitial pores of several hundred nanometers.