• 대한조현병학회지
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• 제22권1호
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• pp.14-20
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• 2019

Objectives: To identify factors related to physical health monitoring of patients with schizophrenia spectrum disorder. Methods: A total of 172 patients with schizophrenia spectrum disorder registered in mental health welfare centers and rehabilitation facilities in Gwangju were recruited. Physical health monitoring was defined by two health behaviors; fasting blood tests within recent 2 years in all participants and routine medical check-ups covered by national insurance within recent 5 years in participants aged 40 years or older. Demographic and clinical characteristics including overweight, metabolic syndrome and knowledge about physical illness were compared according to physical health monitoring. Results: Prevalence of overweight and metabolic syndrome were 62.8% and 40.1%, respectively. The rates of fasting blood tests and routine medical check-ups were 34.9% and 67.9%, respectively. The rates of fasting blood tests were significantly higher in general hospital and university hospital compared to mental hospital or private clinic. Rates of routine medical check-ups were significantly lower in individuals using daily rehabilitation service and smokers. Knowledge about cancer and chronic illness were significantly better in individuals receiving routine medical check-ups compared with those not receiving it. Conclusion: Education about physical health should be integrated to mental health service in community mental health center.

• 한국윤활학회:학술대회논문집
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• 한국윤활학회 2002년도 proceedings of the second asia international conference on tribology
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• pp.373-374
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• 2002

Magnetic fluid seals are used in a wide variety of gas and dust sealing applications. However, it is difficult to seal for liquid because of its characteristic. This study will be a basic guide for a magnetic fluid seal for liquid, especially for blood to be practically used in medical instruments such as rotary blood pumps by clarifying its seal properties. Sealing pressure test, durability test, and hemolysis test have been conducted for this seal. In this study, magnetic fluid, sealing fluid, eccentricity ratio, revolution speed were selected as parameters. As results of the tests, it has been found that the properties of magnetic fluid seal depend on the solvent and the saturation magnetization of magnetic fluid. Therefore, the selection of magnetic fluid is important for this seal. It also has been found that eccentricity ratio of the shaft caused harmful effect for seal properties. In conclusion, it has been showed that magnetic fluid seals could be possibly used in medical instruments such as blood pumps when blood come in contact with magnetic fluids.

• 대한전자공학회논문지TC
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• 제48권1호
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• pp.102-107
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• 2011

헌혈원에서 현재 헌혈원 혈액백에 부착된 바코드를 하나씩 스캔하여 관리하는 것을, 관리의 효율성을 높이고 정확성을 높이기 위해 UHF RFID 혈액관리시스템 BIS(Blood information system)을 구현하였고, 고유전율인 혈액이 들어있는 헌혈용 혈액백 (blood bag)에 부착 가능한 UHF RFID Tag 안테나를 설계하였다. RFID Tag 안테나는 부착된 물체의 전기적인 특성으로 인하여 영향을 받으므로, 고유전율인 혈액에 근접 시 태그 안테나의 임피던스 성분이 변하게 되어 태그의 반사손실 및 대역폭에 영향을 주게 된다. 고유전율에 부착된 일반 태그가 냉장고 안에서 인식률이 20%도 미치지 못한다. 그래서 이러한 영향을 고려하여 일반 다이폴 형태의 태그에 반사판을 사용하여 설계하였다. 반사판이 있을 때와 없을 때, 반사판과 다이폴 태그와의 간격, 다이폴 안테나에 T 매칭 구조의 존재에 따라 임피던스를 조절하여 칩과의 정합 회로를 구성하여 최적화된 태그를 설계 및 제작하였으며 제작된 태그의 특성과 인식거리 패턴을 측정 비교하였다. 또한 본 태그를 사용하여 BIS를 구현하여 혈액관리가 실시간으로 되도록 하였다.

• Clinical and Experimental Pediatrics
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• 제64권8호
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• pp.384-392
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• 2021

Paroxysmal nonepileptic events (PNE) comprise of a variety of nonepileptic behaviors and are divided into various types. A more accurate diagnosis is possible by examining the video clip provided by the caregiver. In infants, physiologic PNE accounts for the majority of the PNE. It is important to exclude epilepsy, for which blood tests, electroencephalography, and imaging tests can facilitate differential diagnosis. Since most PNE have a benign progress, symptoms often improve with age and without special treatment. Therefore, it is important to reassure the caregivers after making an accurate diagnosis.

• 한국산학기술학회논문지
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• 제16권5호
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• pp.3323-3332
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• 2015

중년 남성 근로자에 대한 알코올 섭취와 혈청지질, 간기능검사치 및 비만지표와의 관련성을 알아볼 목적으로 2013년 1월부터 12월까지의 기간 동안에 종합건강검진을 받았던 30~59세의 남성 근로자 2,175명을 대상으로 이들의 1일 알코올 섭취량과 혈압, 혈청지질, 간기능검사치 및 비만지표와의 관계를 검토하였다. 연구결과, 혈압은 음주량의 증가와 함께 유의하게 높은 값을 보였으며, LDL-콜레스테롤 및 중성지질(TG)도 음주량이 증가할수록 높아지는 경향을 보였으나 HDL-콜레스테롤은 음주량이 증가할수록 낮아지는 경향을 보였다. AST, ALT, ALP 및 ${\gamma}$-GTP도 음주량이 증가할수록 높아지는 경향을 보였으나 비만지표에서는 뚜렷한 차이가 없었다. 혈압(SBP, DBP), 혈청지질치(HDL-C, LDL-C, TG) 및 간기능검사치(AST, ALT)가 비정상으로 높아질 위험비는 소량 음주군에 비해 다량 음주군에서 유의하게 상승하였다. 위와 같은 결과는 다량의 음주는 혈압, 혈청지질 및 간기능검사치 증가와 유의한 관련성이 있었으나 비만지표와는 유의한 관련성이 인정되지 않음을 시사하고 있다.

• Nutritional Sciences
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• 제6권4호
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• pp.201-208
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• 2003

This research was conducted to study the effects of the supplementation of multi-extracts of mori folium (MF) and of exercise on plasma insulin and glucose levels in streptozotocin (STZ)-induced diabetic rats. Eight male Sprague-Dawley rats, 4 weeks old, were assigned to each experimental group and were raised in the laboratory for 10 weeks. The animal groups consisted of a normal-control group, a STZ-control group, 3 STZ-induced diabetic groups supplemented ad libitum with various amounts of MF extracts (MF-720, MF-360, and MF-180 groups), and a STZ-induced diabetic group supplemented with MF-360 along with exercise. In the normal-control group, glucose tolerance tests resulted in the peak blood glucose level being achieved in 15 minutes and a fasting blood glucose level being achieved in 60 minutes. In the STZ-control group, the peak blood glucose level was reached after 60 minutes and, even after 90 minutes, blood glucose shown at a significantly higher level compared to the fasting levels. In the groups supplemented with MF extracts, the blood glucose level peaked after 30 minutes of glucose challenge, and returned to the fasting level after 90 minutes; the MF-360 and MF-360+exercise groups showed the best levels of glucose tolerance. Blood glucose levels in the STZ-induced diabetic groups were significantly higher compared to the normal-control group. However, after 7 weeks of supplementation with MF extracts, a significant lowering of blood glucose levels was observed in all groups supplemented with the MF extract. The best effect was observed in the group given MF extract combined with exercise. Compared to the normal-control group, blood insulin levels were significantly lower in all STZ-induced diabetic groups; however, a significantly higher level of insulin was observed in the groups given MF extracts compared to the STZ-control group. This study shows that the supplementation of MF extracts in STZ-induced diabetic rats resulted in increased blood insulin levels and lower blood glucose levels.

• 대한의용생체공학회:의공학회지
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• 제32권1호
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• pp.25-31
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• 2011

Blood glucose information is important for self regulation in daily life, but the frequency of self test remains to be only 17%(9 tests/month) in Korea, mainly due to pain during blood sampling. The present study tried to validate the clinical efficacy of the forearm as an alternative sampling site with minimized pain. Capillary blood was sampled both on the index finger($G_F$) and the forearm($G_A$), immediately followed by glucose measurements in 531 subjects, 25 who visited the Health Enhancement Center of C University Hospital, then venous blood($G_V$) was sampled for glucose test. The blood glucose concentration measured on the forearm was closer to the venous glucose than on the finger. The mean difference between $G_V$and $G_F$ was only 10 mg/dL well within the internationally accepted error limit. Error grid analyses of $G_F-G_V$, $G_A-G_V$ and $G_A-G_F$ revealed that the number of data points in regions A and B took 100%, 99.8%, and 97.9%, respectively. These results demonstrate the forearm blood glucose test is not only accurate but also clinically valid. Therefore, the forearm blood glucose test can be a useful way of self managing the chronic diabetes with minimized sampling pain.

• 대한의용생체공학회:학술대회논문집
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• 대한의용생체공학회 1989년도 춘계학술대회
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• pp.75-76
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• 1989

The blood bank is a field of clinical pathology which requires the most accuratemaintenanceofrecording. Because the mistake in it is directly related to a patient's life. So, the computerization of the blood bank is urgent to maintain a log blook arid to compare the patient's current data with past result. We developed the blood bank management program using 32 bit minicomputer. This is composed of 4 parts; a management of routine test result, special test result, the blood issue and statistics. The management of routine test result handles the patient's information and blood typing and compares above results with the past one of same patient. The management of special test result are for special immunohematologic tests like an irregular antibody, Coombs' test, and etc. Blood issue part records the type of the blood bag, component, and the name of issuer. Statistic part are made to get statistics of each day and each month by the blood type, and the type the blood component. The program is secured by the maintenance of operator's operation history and thu provision of the security code to each operator, without which no one can enter the system and after the content. So the stability and reliability of the data is obtained. This program will be upgraded for bar-code using system in the near future.

• 대한의용생체공학회:의공학회지
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• 제39권5호
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• pp.175-182
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• 2018

The purpose of this study is to evaluate the reliability and effectiveness of hyperbaric oxygen chamber on alcohol-induced oxidative stress and hangover. In order to evaluate them, 20 healthy adults were tested for blood and hangover stress tests. When an exponential change was examined after 3 interventions (hangover drink, hyperbaric oxygen chamber, and normal chamber as placebo effect) of 1 hour, the heart rate of subjects experiencing a hyperbaric oxygen chamber showed a statistically significant decrease (p < 0.001). The tests of blood alcohol concentration (BAC) as for exquisite hematology analysis, glucose, creatinine, and AST (aspartate aminotransferase) as well as ALT (alanine aminotransferase) used as liver-damage indicator show that the hyperbaric chamber has the effective effect. In the test of lactic acid, CRP (c-reactive protein), cortisol, and creatinine, the hyperbaric chamber shows much more excellent effect than the hangover drink and normal chamber as control groups. Further studies on hyperbaric oxygen chamber intervention including this study could be very helpful for improving lives of both the patients and healthy people.

• 대한수의학회지
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• 제38권2호
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• pp.359-365
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• 1998

This study was conducted to isolate the protozoan parasite Babesia gibsoni by intraerythrocytic culture method of micoraerophilous stationary phase(MASP) and evaluate the possibility of application for the detection of B gibsoni in canine babesiosis. Also, indirect fluorescent antibody test(IFAT) and thick blood smear(giemsa stain), direct light microscopy (DLM), as control diagnostic tests, were conducted to compare diagnostic effects between MASP, IFAT and DLM. The results obtained from this study were summarized as follows. The protozoan parasite B gibsoni multiplied in 24-well polystyrene plate containing 1.2ml of canine red blood cell suspension in RPMI 1640 medium(pH 7.0) which is contained 20~40% normal canine serum(NCS) under the MASP condition of 5% $CO_2$ and 95% air at $37^{\circ}C$ incubator. Under the above MASP culturing system the percentage of parasitized erythrocytes(PPE) after incubation for 9 days reached the peak. The levels of PPE in MASP culture were shown more higher by exchanging the medium at 24 hour intervals. The parasite were purely isolated from MASP culture of canine red blood cells collected from dogs(pit bullterrier) infected with B gibsoni naturally. Among the total of 83 heads of pit bullterrier blood samples the positive rate was 32 heads(38.5%) in DLM, 45 heads(54.2%) in IFAT and 42 heads(50.6) in MASP culture. In negative cases of IFAT and DLM the isolation rates of B gibsoni by MASP culture were 16 heads(42.1%) of 38 heads and 16 heads(28.6%)% of 56 heads, respectively. From this study it was suggested that MASP culture method by RPMI 1640 medium was a reliable and useful diagnostic test for the diagnosis of B gibsoni infections in canine babesiosis.