• 대한한방내과학회지
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• 제18권1호
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• pp.191-206
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• 1997

In order to investingate the effects of Jukyeopseokgotanggagambang Extract on antitumor effects after human cell lines(A549, hep3B, Caki-1, Ehrlich) transplantation into the peritoneal cavity or right groin in mice induced by RPMI 1640 and GIBCO etc., the extracts of its herbal medicines were orally administered for 10 or 12days. Experimental studies were performed for measurance of antitumor effect of MMC(Mitomycin C) and lysosomal enzyme's activities using colony forming efficiency, SRB assay which were regarded as a valuable method for antitumor effects of unknown compound on tumor cell lines. The results obtained in this studies were as follows: 1. According to the change of colony-forming efficiency and SRB assay of Caki-1 cell, hep3B and A549 cells after exposure to the extract of Jukyeopseokgotanggagambang extract, that extract depressed the growth of tumor cells depending on its concentration. 2. Antitumor activities of the ethanol extract from Jukyeopseokgotanggagambang extract and MMC on ascites form of Ehrlich carcinoma in mice is a little improved. Especially mean survival times of the group of Jukyeopseokgotanggagambang extract 200mg/kg and MMC 0.1mg/kg is improved over 30%. 3. When Jukyeopseokgotanggagambang extract and MMC are administerated together, the weight of tumor is more decreased than MMC alone. 4. The effects of the Jukyeopseokgotanggagambang extract and MMC on the lysosomal enzymes in Ehrlich ascites carcinoma cell are more significantly improved than MMC alone. 5. Jukyeopseokgotanggagambang extract also increased the uptake of MMC into Ehrlich carcinoma cells. According to the above results, it could be suggested that Jukyeopseokgotanggagambang extract has indirect autitumor effects by strengthening the effects of MMC on tumor cells.

• Tuberculosis and Respiratory Diseases
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• 제51권1호
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• pp.70-75
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• 2001

저자들은 폐결핵의 병력이 있던 2명의 환자에서 기침과 객담을 주소로 내원하여 단순 흉부 방사선과 흉부 전산화 단층 촬영 결과 흉막비후와 기관지흉막루를 의심할 수 있는 공동형성을 보이고 흉막 천자액 배양과 수술후 조직배양검사결과 Aspergillus fumi-gatus가 확인되어 수술 및 항진균제를 사용하여 치료한 2례를 경험하였기에 이를 보고하는 바이다.

• 대한한방내과학회지
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• 제28권2호
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• pp.354-362
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• 2007

Objective : The aim of this study was to investigate the ability of Cheonggugamrosu. a gargling agent made from herb extracts, to decrease oral malodor in vitro and in clinical research. Methods : For in vitro experiment. samples were Garglin (over-the-counter mouthwash), CheonggugamrosuA and Cheonggugamrosu B. Deodorizing activity of each sample against methyl mercaptan were analyzed by gas chromatography (GC). In clinical examination. subjects were 73 students from the oriental medicine school of Kyunghee University. The concentration of VSC in oral cavity of each subject was measured by Halimeter and subjects were divided into 3 groups that would gargle for 30 seconds with normal saline. Garglin and CheonggugamrosuA. Subsequently, concentration of VSC was measured in same way immediately, 2 hours and 4 hours after gargling. Results : During in vitro experiment by GC, deodorizing activities were 46.77% with Garglin, 80.64% with Cheonggugamrosu A and 82.28% with Cheonggugamrosu B. In clinical examination, at 2 hours after gargling, the concentration of VSC in the Cheonggugamrosu A group was significantly lower than in the normal saline group, but not in the Garglin group. 4 hours after gargling, the concentration of VSC in both CheonggugamrosuA and Garglin wasn't significantly different from the one in the normal saline group. Conclusions : Cheonggugamrosuhad better and longer deodorizing effect than Garglin in this study. Because of the safety of herbal medicine and its efficaciousness, we can use Cheonggugamrosu as a clinical prescription.

• Journal of Veterinary Science
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• 제22권2호
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• pp.17.1-17.13
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• 2021

Background: Klebsiella spp. is an important conditional pathogen in humans and animals. However, due to the indiscriminate use of antibiotics, the incidence of antimicrobial resistance has increased. Objectives: The purpose of this study was to investigate antimicrobial resistance in strains of Klebsiella strains and the phylogenetic relatedness of extended-spectrum cephalosporin (ESC)-resistance among Klebsiella strains isolated from clinically ill companion animals. Methods: A total of 336 clinical specimens were collected from animal hospitals. Identification of Klebsiella species, determination of minimum inhibitory concentrations, detection of ESC resistance genes, polymerase chain reaction-based replicon typing of plasmids by conjugation, and multilocus sequence typing were performed. Results: Forty-three Klebsiella strains were isolated and, subsequently, 28 were identified as K. pneumoniae, 11 as K. oxytoca, and 4 as K. aerogenes. Eleven strains were isolated from feces, followed by 10 from ear, 7 from the nasal cavity, 6 from urine, 5 from genitals, and 4 from skin. Klebsiella isolates showed more than 40% resistance to penicillin, cephalosporin, fluoroquinolone, and aminoglycoside. ESCresistance genes, CTX-M groups (CTX-M-3, CTX-M-15, and CTX-M-65), and AmpC (CMY-2 and DHA-1) were most common in the K. pneumoniae strains. Some K. pneumoniae carrying CTX-M or AmpC were transferred via IncFII plasmids. Two sequence types, ST709 and ST307, from K. pneumoniae were most common. Conclusions: In conclusion, this is the first report on the prevalence, ESCresistance genotypes, and sequence types of Klebsiella strains isolated from clinically ill companion animals. The combination of infectious diseases and antimicrobial resistance by Klebsiella in companion animals suggest that, in clinical veterinary, antibiotic selection should be made carefully and in conjunction with the disease diagnosis.

• Korean Journal of Radiology
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• 제22권7호
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• pp.1044-1053
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• 2021

Objective: Motion-corrected averaging with a single-shot technique was introduced for faster acquisition of late-gadolinium-enhancement (LGE) cardiovascular magnetic resonance (CMR) imaging while free-breathing. We aimed to evaluate the image quality (IQ) of free-breathing motion-corrected single-shot LGE (moco-ss-LGE) in patients with hypertrophic cardiomyopathy (HCM). Materials and Methods: Between April and December 2019, 30 patients (23 men; median age, 48.5; interquartile range [IQR], 36.5-61.3) with HCM were prospectively enrolled. Breath-held single-shot LGE (bh-ss-LGE) and free-breathing moco-ss-LGE images were acquired in random order on a 3T MR system. Semi-quantitative IQ scores, contrast-to-noise ratios (CNRs), and quantitative size of myocardial scar were assessed on pairs of bh-ss-LGE and moco-ss-LGE. The mean ± standard deviation of the parameters was obtained. The results were compared using the Wilcoxon signed-rank test. Results: The moco-ss-LGE images had better IQ scores than the bh-ss-LGE images (4.55 ± 0.55 vs. 3.68 ± 0.45, p < 0.001). The CNR of the scar to the remote myocardium (34.46 ± 11.85 vs. 26.13 ± 10.04, p < 0.001), scar to left ventricle (LV) cavity (13.09 ± 7.95 vs. 9.84 ± 6.65, p = 0.030), and LV cavity to remote myocardium (33.12 ± 15.53 vs. 22.69 ± 11.27, p < 0.001) were consistently greater for moco-ss-LGE images than for bh-ss-LGE images. Measurements of scar size did not differ significantly between LGE pairs using the following three different quantification methods: 1) full width at half-maximum method; 23.84 ± 12.88% vs. 24.05 ± 12.81% (p = 0.820), 2) 6-standard deviation method, 15.14 ± 10.78% vs. 15.99 ± 10.99% (p = 0.186), and 3) 3-standard deviation method; 36.51 ± 17.60% vs. 37.50 ± 17.90% (p = 0.785). Conclusion: Motion-corrected averaging may allow for superior IQ and CNRs with free-breathing in single-shot LGE imaging, with a herald of free-breathing moco-ss-LGE as the scar imaging technique of choice for clinical practice.

• 대한한의학회지
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• 제31권1호
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• pp.23-29
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• 2010

Objective: The aim of this prospective, case-controlled study was to assess the difference of the amount of tongue coating between halitosis and non-halitosis patients using a digital tongue diagnosis system (DTDS). Methods: Sixty-five patients complaining of oral malodor were recruited for the study. The level of volatile sulfur compounds (VSC) in the oral cavity of the patients was measured by a portable gas chromatography. All patients were then divided into two groups, the halitosis group ($H_2S{\geq}1.5ng$/10ml, or $CH_3SH{\geq}0.5ng$/10ml) and the non-halitosis group ($H_2S$<1.5ng/10ml and $CH_3SH$<0.5ng/10ml), according to the VSC level criteria published by Tonzetich. Tongue images of the two groups were acquired and analyzed by DTDS, followed by the analysis of the tongue coating scores. Results: The tongue coating scores of the halitosis group were significantly higher than of the non-halitosis group (P=0.033). Furthermore, the difference of the posterior tongue coating between the two groups was more significant (P=0.000). Conclusions: Halitosis patients were shown to have a thicker tongue coating than those in the non-halitosis group. Moreover, the posterior dorsum of the tongue should be observed more cautiously when dealing with halitosis patients. Also, the progress and state of the patient's symptom of halitosis as diagnosed objectively by the portable gas chromatography could also possibly be analyzed instead by the DTDS tongue coating score.

• Tuberculosis and Respiratory Diseases
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• 제47권3호
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• pp.389-393
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• 1999

자궁내막 증식증은 일차적으로 골반내에 국한된 질환이나 드물게 폐실질에서 발견될 수 있다. 폐 자궁내막 증식증의 진단은 임상적 양상과 월경기간 동안의 객혈이 있으면서 조직학적 확진을 통해서 진단될 수 있다. 폐 자궁내막 증식증은 1956 년 Lattes등에 의해 처음으로 조직학적으로 확진한 후에 전세계적으로 드물게 보고되고 있다. 저자들은 25세 미혼 여성에게서 월경과 연관된 객혈을 한 여성에게서 흉부 전산화 단층촬영과 기관지 내시경을 통해서 병소를 확인한 후에 수술적 치료를 함으로 조직학적으로 확진한 폐실질 자궁내막 증식증 1예를 보고하는 바이다.

• Tuberculosis and Respiratory Diseases
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• 제60권5호
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• pp.516-522
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• 2006

배 경 : 결핵성 농흉은 단순 결핵성 흉막염보다 빈도는 낮으나 공동이나 중증 폐결핵과 흔히 동반되 고, 배농과 함께 장기적인 치료를 요하는 흉강의 만성적 활동성 감염질환이다. 국내에서도 이러한 결핵성 농흉 환자가 드물지 않게 발생하고 있으나 지금까지 이에 대한 연구가 거의 없었다. 방 법 : 1991년 1월부터 2004년 4월까지 경북대학교병원에서 결핵성 농흉으로 진단된 17예의 환자를 대상으로 후향적 조사를 시행하였다. 결 과 : 대상환자 17예 중 12예(71%)에서 폐결핵 치료 과거력(6예) 혹은 현재 치료중인 폐결핵(6예)과 관련이 있었으며, 가장 흔한 증상으로는 객담이 동반된 기침, 발열, 호흡곤란의 순이었다. 중증 폐결핵 병변이 53%, 공동성 병변이 12%, 농기흉이 41%에서 관찰되었다. 흉막액 분석이 가능하였던 8예 모두에서 다형핵백혈구 우세의 삼출액이었으며, 세균성 감염이 47%에서 동반되어 있었다. 객담 항산균 도말검사는 71%, 객담 결핵균 배양검사는 64%에서 양성을 보였으며, 흉막액의 항산균 도말검사는 33%, 흉막액 결핵균 배양검사는 36%에서 양성을 보였다. 추적 관찰된 16예 중에서 외과적 치료를 시행한 3예를 포함한 12예(75%)에서 성공적으로 치료되었고, 2예(12%)는 사망하였다. 결 론 : 결핵성 농흉은 농기흉을 동반한 중증의 폐결핵과 흔히 동반되고, 흉막액의 백혈구 감별계산에서 다형핵백혈구 우세를 보이며, 흉막강의 세균성 감염이 흔히 동반되었다. 따라서 심한 폐병변과 동반되어 완전한 농이나 다형백혈구 우세 소견을 보이는 화농성 흉막액 환자에서 결핵성 농흉을 감별진단에 반드시 고려하여 이에 대한 적극적인 조사와 치료가 필요할 것으로 생각된다.

• Restorative Dentistry and Endodontics
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• 제39권2호
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• pp.120-125
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• 2014

Use of an apical plug in management of cases with open apices has gained popularity in recent years. Biodentine, a new calcium silicate-based material has recently been introduced as a dentine substitute, whenever original dentine is damaged. This case report describes single visit apexification in a maxillary central incisor with necrotic pulp and open apex using Biodentine as an apical barrier, and a synthetic collagen material as an internal matrix. Following canal cleaning and shaping, calcium hydroxide was placed as an intracanal medicament for 1 mon. This was followed by placement of small piece of absorbable collagen membrane beyond the root apex to serve as matrix. An apical plug of Biodentine of 5 mm thickness was placed against the matrix using pre-fitted hand pluggers. The remainder of canal was back-filled with thermoplasticized gutta-percha and access cavity was restored with composite resin followed by all-ceramic crown. One year follow-up revealed restored aesthetics and function, absence of clinical signs and symptoms, resolution of periapical rarefaction, and a thin layer of calcific tissue formed apical to the Biodentine barrier. The positive clinical outcome in this case is encouraging for the use of Biodentine as an apical plug in single visit apexification procedures.

• 대한기계학회논문집B
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• 제31권7호
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• pp.620-627
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• 2007

In this paper, we adapt a modified internal energy non-equilibrium first-order extrapolation thermal boundary condition to the thermal lattice Boltzmann model (TLBM). This model is the double populations approach to simulate hydrodynamic and thermal fields. The bounce-back boundary condition which is a traditional boundary condition of lattice Boltzmann method has only a first order in numerical accuracy at the boundary and numerical instability. A non-equilibrium first-order extrapolation boundary condition has been verified to be of better numerical stability than the bounce-back boundary condition and this boundary condition is proved to be of second-order accuracy for the flat boundaries. The two-dimensional natural convection flow in a square cavity with Pr=0.71 and various Rayleigh numbers are simulated. The results are found to be in good agreement with those of previous studies.