• Perinatology
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• 제29권4호
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• pp.175-179
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• 2018

Pneumatocele (PC) is a thin-walled cyst of the lung that can occur at all ages and with various etiologies. However, there is no fully accepted consensus for the management of PC in a neonatal intensive care unit. Although the management of PC is generally expectant, it is difficult to decide how long conservative management should be maintained, especially under Korea's medical care environment and the parents' worry and anxiety. We report a male neonate, born at $27^{+5}weeks$ gestation, weighing 1,000 g, who had a post infectious PC caused by methicillin-resistant Staphylococcus aureus sepsis. We treated conservatively for about 100 days (roughly 14 weeks), but unfortunately after a few days of chest retraction, acute exacerbation occurred, video assisted thoracoscopic surgery (VATS) was deemed necessary and performed. The purpose of this publication is to describe the clinical course, aggravation and relief after VATS management with a review of the literature.

• Journal of Chest Surgery
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• 제39권9호
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• pp.668-673
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• 2006

Taxene 계 화학요법제로서 항암치료에 사용되고 있는 docetaxel 은 폐암을 포함한 다양한 종양에서 효과적인 항암 치료제로 사용되고 있다. Docetaxel 에 의한 폐암세포의 사멸 유도 기전은 정확히 알려져 있지 않으며, 기전을 연구하기 위해 docetaxel로 처리한 NCI-H1703 세포의 세포주기 및 형태적 변화를 유세포측정기, 형광현미경, western blot 분석법을 통하여 확인하였다. 그 결과 docetaxel 은 의미 있게 S기를 감소시키고 G2기를 증가시킴으로써 NCI-H1703 세포의 사멸을 증가시켰다. Docetaxel에 노출되었을 때 caspase-3와 caspase-9의 활성이 증가되었다. 이들 결과를 종합해볼때, docetaxel 은 H1703 의 세포사멸 유도 시 caspase-3 의존성 미토콘드리아 관련 세포사멸기전으로 apoptosis를 일으키는 것으로 생각한다.

• 대한한방내과학회지
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• 제24권2_4호
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• pp.1014-1022
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• 2003

Aphasia is speech disorder caused by injuries on the speech nerve center. It usually occur due to a disease in the right cerebral cortex and is divided into the various aphasia such as Global aphasia, Broca's aphasia, Wernicke's aphasia, conduction aphasia, Anomic aphasia, etc. Jihwangumja is used the cerebral infarction with Aphasia due to deficiency syndrome of kidneys. The purpose of this study is to examine the efficacy of oriental treatment for cerebral infarction with aphasia by Jihwangumsa. In the hospital, the patient showed the symptoms of mental disorder, Rt. hemiparesis G3/G4, aphasia, chest discomfort, obstipation, frequent urination, etc. The case showed that acute infarction on Lt. fronto-temporo-parietal lobe in Brain-CT. We identified the patient's clinical conditions and treated accordingly. As a result of treatment, symptoms were markedly improved and he was discharged. Further elaboration of oriental diagnostic classification could possibly lead to the fundamental treatment.

• 대한의용생체공학회:학술대회논문집
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• 대한의용생체공학회 1998년도 추계학술대회
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• pp.313-314
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• 1998

An intelligent developer replenish system was developed for automatic film processor. The system detects the gray level of a developed film and determines the amount of the developer to be added to the system. Using the film darkness detection system, it was found that the film darkness is inversely proportional to the amount of light exposure, that the developer retrograde after developing certain number of films without replenishment and the number is dependent upon the parts of the body, and that the developer does not retrograde when 30 ml of developer is added after each chest film processing. The use of this system resulted in a decrease in the amount of developer by 40%.

• Asian-Australasian Journal of Animal Sciences
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• 제27권8호
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• pp.1204-1210
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• 2014

The objective of the study was to investigate the effect of feeding fibrous diets on growth performance and occurrence of aggressive behaviours in growing pigs. Sixty healthy castrated pigs (initial body weight: $46.7{\pm}4.35$ kg) were used. A basal diet was diluted with maize cobs to two levels (0 and 160 g/kg dry matter). Behavioural activities were observed using video cameras for three weeks, 8 h/d starting at 0800 h. Pigs subjected to control diet gained more weight compared to pigs receiving fibrous diet in week 1 (0.47 vs 0.15 kg, respectively) and 2 (1.37 vs 1.04, respectively) (p<0.05). Average daily gain was not affected by treatment diet in the third week. Pigs on high fibrous spent more time eating, lying down, standing, walking and fighting (p<0.05) compared to pigs on control diet. Time spent eating increased as the weeks progressed whilst time spent lying down decreased. Time of day had an effect on time spent on different behavioural activities exhibited by all pigs on different treatment diet (p<0.05). Inactivity was greatest in 5th (1200 to 1300 h) hour of the day for all the pigs on different dietary treatments. Skin lesions appeared the most on neck and shoulder region followed by chest, stomach and hind leg region, and finally head region (p<0.05). Pigs on high fibre diet had more skin lesions in all body regions compared to pigs on control diet (p<0.05). It can be concluded that the high fibrous diet with maize cobs did not affect growth performance and also did not reduce aggressive behaviours. Aggressive behaviours emanated out of frustration when queuing on the feeder. The findings of this study suggest that maize cobs can be included at a level of 160 g/kg in diets of pigs. However, to reduce the level of aggression more feeding space should be provided.

• 한국의류산업학회지
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• 제20권4호
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• pp.474-481
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• 2018

For this study, we developed clothing in which textile materials that were excellent weather control function for the cold environment and we performed the human subject test with developed clothing to determine the thermal comfort. We used 2 clothing samples developed (A and B, hollow yarn+moisture absorption/quick drying yarn, 3 layers, high stretchable, heat reflection film and lamination treated) and a control sample (Ctrl.) for the human subject test and 8 adult males were used as a human subjects and environmental conditions of chamber were $0{\pm}1^{\circ}C$. $50{\pm}5%RH$, 0.3m/sec. The results were as follows: The average skin temperature and hand, thigh temperature of B were higher than B and Ctrl. (p<.05). The micro-climates of B were near to thermal comfort range which is $32{\pm}1^{\circ}C$ and $50{\pm}10%\;RH$. The chest temperature of B was significantly higher than others (p<.05). The relative humidity of B was lower than others and kept stable rather than others. The thermal sensation of B was near the "neutral" and was significantly different from Ctrl. (p<.01) and the weight loss of B was lower than Ctrl. (p<.05). The counting task and hand temperature was positively related and the counting task value of B and A is bigger than Ctrl. and that of A was bigger than Ctrl. (p<.05).

• Journal of Chest Surgery
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• 제31권9호
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• pp.845-854
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• 1998

Background: S-2-(3 aminoprophlamino) ethylphosphorothioic acid(WR-2721) is one of the radical scavenging thiols. We tested its protective effects in the reperfused heart. Material and Method: The experimental setup was the constant pressure Langendorffs perfusion system. We investigated the radical scavenging properties of this compound in isolated rat hearts which were exposed to 20 minutes ischemia and 20 minutes reperfusion. Four experimental groups were used:group I, control, Amifostine 50 mg(1 mL) peritoneal injection 30 minutes before ischemia(group II), Amifostine 10 mg(0.2 mL) injection during ischemia through coronary artery(group III),and Amifostine 50 mg(1 mL) peritoneal injection 2 hrs before ischemia(group IV). The experimental parameters were the levels of latate, CK-MB, and adenosine deaminase(ADA) in frozen myocardium, the quantity of coronary flow,and left ventricular developed pressure, and it's dp/dt. Statistical analysis was performed using repeated measured analysis of variance and student t-test. Result: The coronary flow of group II and IV were less than group I and III at equilibrium state but recovery of coronary flow at reperfusion state of group II, III, and IV were more increased compared with group I. The change of systolic left ventricular devoloping pressure of group II and IV were less than control group at equilibrium state, which seemed to be the influence of the pharmacological hypotensive effect of amifostine. But it was higher compared with group I at reperfusion state. The lactic acid contents of group II were less than control group in frozen myocardium.(Group I was 0.20 0.29 mM/g vs Group II, which was 0.10 0.11 mM/g). The quantity of CK-MB in myocardial tissue was highest in group IV (P=0.026 I: 120.0 97.8 U/L vs IV: 242.2 79.15 U/L). The adenosine deaminase contents in the coronary flow and frozen myocardium were not significantly different among each group. Conclusion: Amifostine seemed to have significant cardioprotective effect during ischemia and reperfusion injuries of myocardium.

• Journal of Chest Surgery
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• 제31권6호
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• pp.560-566
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• 1998

서론: 심혈관계 수술 시 이용되는 조직판막 등 glutaraldehyde(GA)에 보존한 이종보철편들은 석회화에 의한 변성으로 환자의 장기성적에 나쁜 영향을 주게 된다. 이에 연구자는 GA 용액에 Mg 염을 첨가, 자유 알데히드와 미리 결합하게 함으로 조직 및 혈중의 칼슘과 반응하는 것을 막아 석회화를 완화하고자 시도하였고 계면활성제로 sodium dodecyl sulfate(SDS)와 Triton X-100을 사용, 전처치하여 GA에 고정, 석회화 완화 효과를 관찰하였다. 대상 및 방법: 우심낭을 정방형 조각으로 만들어 40 조각의 우심낭편은 대조군으로 MgCl2.6H2O를 4g/L 첨가한 0.625% GA 용액에 보존하고(1 군), 40 조각은 SDS에 전처치 후 이 GA 용액에 보존(2 군), 또 다른 40 조각은 Triton X-100에 전처치 후 GA에(3 군) 각각 한달 간 보관한다. 이들을 40 마리의 백서의 복부 피하에 각각 한 조각씩 이식하여 1 개월, 2 개월, 3 개월 및 6 개월 째에 적출, spectrophotometry로 이 우심낭편에 침착한 칼슘을 정량분석하였다. 결과: 이식 후 1 개월에는 세 군 간의 석회화 정도에 차이가 없었으나, 2 개월 부터 차이를 보여 1 군 0.921$\pm$0.121 mg/g, 2 군 0.481$\pm$0.037 mg/g, 3 군 1.369$\pm$0.200 mg/g의 통계적 차이를 보였고(p<0.05), 3 개월에 1 군 0.786$\pm$0.080 mg/g, 2 군 0.584$\pm$0.054 mg/g, 3 군 1.139$\pm$0.188 mg/g, 마지막 6 개월에 1 군 1.623$\pm$0.601 mg/g, 2 군 0.501$\pm$0.043 mg/g, 3 군 1.625$\pm$0.382 mg/g으로 정량되어 2 군에서 유의한 석회화 완화 효과가 관찰되고 있다 (p<0.05). 결론: 음성 계면활성제인 SDS의 전처치로 중기 이상 시간이 경과함에 따라 피하에 이식된 보철편의 석회화가 완화되었으나 중성 계면활성제인 Triton X-100의 전처치로는 완화 효과가 관찰되지 않았다.

• Journal of Nutrition and Health
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• 제31권8호
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• pp.1283-1294
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• 1998

This study was conducted to investigate nutritional status by anthropometric meas-urement and to assess the validity of indicators for nutritional status of preschool children. Health examinations, including blood and urine tests, were done for 799 childern aged 2 to 6 years. The mean anthropometric measurements of height, weight , head circumference, and chest circumference were 90.2cm, 13.9kg, 47.7cm, 50.9cm for 2 years (n=13), 94.8cm, 15.2kg, 43.3cm, 47.0cm for 3 years(n=125), 100.7cm, 16.4kg, 46.2cm, 50.5cm for 4 years(n=272), 106.5cm, 18.1kg, 48.8cm, 53.8cm for 5 years(n=253), 113.0cm 20.4kg, 50.4cm 56.9cm for 6 years(n=136), respectively. All anthropometric measureemnts were significantly different by age and sex. The results of physical examinations excluding dental examination were normal for all studied children. Urine test results were also normal for the subjects. The most common blood type was A and the rarest one was type AB. The mean hemoglobin concentration was 11.84g/dl for boys(n=398), 11.86g/dl for girls, and 11.85kg/dl for all. The percentage of childeren whose hemoglobin concentration was less than 11.0g/dl was 21.6% for boys and 18.9% for girls. The percentage of children whose height for age, weight for age, and weight for height were in the rang of median $\pm$1 standard devication(S.D) was 71.7% , 65.6%, and 67.0% for each indicator. Obese childeren whose weight for height or weigth for age was more than median +2S.D. were 5.2% while tall children whose height for age was more than median +2S.D, were 1.8% . Past and recent nutritional status of most children(87.2%) were assessed as normal by the combination of three indicators(height for age, weight for age, weight for height). The percentate of coincidence between for height) and one assessed by anthropometric measurements (height for age, weight for age, weight for height) and one assessed by physicial was 59.6%, 69.3% and 67.8% for each indicator, respectively. The distribution of subjects by height for age was significantly different between normal and anemic groups. With these results , the nutritional status of children the studied was normal. The anthropometric measurements reflected the nutritional status of childeren relatively well. In conclusion, in comparison with biochemical meausurements anthropometric measurements are relatively simple and effective indicators for nutritional assessement of children in large health and nutrition suveys in Korea.

• Journal of Chest Surgery
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• 제29권9호
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• pp.989-995
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• 1996

체외순환을 이용한 개심술후 혈소판기능부전에 의한 비정상적인 출혈은 수술 사망율 및 이환율의 증가를 초래한다. 본 논문에서는 체외순환시 aprotinin을 투여하여 임상적 지혈 및 혈소판기능보존에 대한 효과를 관찰하기 위해 인공판막치 환술을 받은 40명의 환자를 대상으로 low-dose aprotinln 투여군 20명, 대조군 20명으로 나누어 그 효과를 비교 분석하였다. Aprotinin 투여군에서 대조군에 비해 약 40%의 출혈감소(622.0$\pm$ 186m1 versus 1021 $\pm$483.5ml, p<0.01) 및 약 63%의 혈색소 손실(14.7 $\pm$6.8g versus 39.7$\pm$ 16.4g, p<0.01)을 줄일 수 있었으며 약 70%의 수혈감 소(197.7$\pm$ 56.3ml versus 651.2 $\pm$ 147.5ml, p<0.01) 효과를 얻을 수 있었다. 또한 투여 군에서 혈소판 응집 능이 효과적으로 보존되었다(P<0.05). 체외순환중 activated clotting time이 투여 군에서 연장되어 heparin의 항응고작용에 대해 상승효과가 있었으며 aprotinin의 투여와 관련된 합병증은 없었다. 이상의 결과에서 체외순환을 이용한 개심술에 있어서 low-dose aprotinin의 투여는 술후 출혈량 및 혈 액과 혈액제제의 사용감소에 효과가 있으며 이는 혈소판응집능의 효과적 \ulcorner보존에 의한 것으로 사료된다.