• Korean Chemical Engineering Research
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• 제54권3호
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• pp.285-292
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• 2016

삼차원 프린팅(3D printing) 기술은 공학, 제조업, 교육, 예술, 그리고 바이오의학 같은 다양한 분야에 활용되고 있는 혁신적 기술이다. 프린팅 기술, 재료/생화학물질을 포함한 최근 기술의 진보는 생체적합성 물질, 세포, 지지체 성분의 3D 프린팅으로 복잡한 3D 기능성 조직과 장기를 제작할 수 있는 가능성을 보여주고 있다. 3D 바이오프린팅 기술은 신약 개발, 독성 연구를 위한 조직 모델의 제작에도 활용되고 있다. 3D 바이오프린팅 기술은 공학, 생체재료과학, 세포생물학, 생화학, 물리, 의학 같은 분야의 통섭이 필요한 연구 분야이다.

• Journal of Ginseng Research
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• 제14권3호
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• pp.391-398
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• 1990

The intradermal injection of Propionibacterium acnes (ATCC 6919) into the ears of female Sprague-Dawley rats produced a chronic inflammation with the formation of acneiform lesions. Inflammation was characterized by more than four times of ear thickness and 2.8 times of ear weight at day 21. Histologically, massive infiltration of neutrophils, macrophage and lymphocytes, hyperplastic epidermis, comedones containing keratin mass and inflammatory materials were observed. Both ginseng saponin and extract from Korean red ginseng significantly redliced the ear thickness and their effects were similar to that of benzoyl peroxide. Ginseng samples and beneoyl peroxide modified lipid constituents of P. acnesinjected rat ear tissues. Even though no marked histological changes in inflammatory lesions were observed in ginseng-treated ear tissues, Korean red ginseng showed a possibility of reduce in the risk of acne development.

• Journal of Ginseng Research
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• 제18권2호
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• pp.113-117
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• 1994

To assess a polential relationship of Korean ginseng to allergic reactions, the effect of Korean ginseng on the total IgE in serum as an allergologic parameter was investigated in humans. Serum total IgE levels were measured in 8 subjects who have been taking ginseng for more than 5 years, 4 subjects of weak constitution, 10 newly hired workers in the ginseng processing industry and 7 normal subjects unexposed to Korean ginseng as control group. Blood samples were taken before and after the exposure to Korean ginseng. Total IgE levels after the exposure to Korean ginseng were not significantly different from those before the exposure within each group. And also, the IgE levels of control subjects were not significantly different compared with those of other groups. These results suggest that the exposure to Korean ginseng dose not affect significantly the IgE immune response of the subjects.

• 한국환경과학회지
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• 제14권1호
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• pp.9-14
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• 2005

This study evaluated the hazard caused by $NO_{2}$, an oxidant generated in the process of welding. We com­pared hematological and biochemical parameters in workers who chronically inhale $NO_{2}$ and office workers not exposed to $NO_{2}$. $NO_{2}$ exposure affected the hematological and biochemical parameters. Increasing $NO_{2}$ concen­trationincreased the number of leukocytes, while decreasing the number of erythrocytes. Blood urea nitrogen, cre­atinine, uric acid, and lactate dehydrogenase were increased, while total protein and triglycerides were decreased. The mean concentration of $NO_{x}(NO_{2}^{-}/NO_{3}^{-})$ in the serum of welders and the control group was $35.97{\pm}2.85\;and\;55.40{\pm}5.81\;{\mu}mol/L,$ respectively. The difference was significant (p < 0.05), although $NO_{2}^{-}$ was not detected in the serum.

• Biotechnology and Bioprocess Engineering:BBE
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• 제7권6호
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• pp.331-334
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• 2002

Culture conductivity and on-line NADH fluorescence were used to measure cellular growth in plant cell suspension cultures of Podophyllum hexandrum. An inverse correlation between dry cell weight and medium conductivity was observed during shake flask cultivation. A linear relationship between dry cell weight and culture NADH fluorescence was obtained during the exponential phase of batch cultivation In a bioreactor under the pH stat (pH 6) conditions. It was observed that conductivity measurement were suitable for biomass characterisation under highly dynamic uncontrolled shake flask cultivation conditions. However, if the acid/alkali feeding is done for pH control the conductivity measurement could not be applied. On the other hand the NADH fluorescence measurement allowed online-in situ biomass monitoring of rather heterogenous plant cell suspension cultures in bioreactor even under the most desirable pH stat conditions.

• 한국콘크리트학회:학술대회논문집
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• 한국콘크리트학회 2003년도 가을 학술발표회 논문집
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• pp.120-123
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• 2003

In order to evaluate the applicability of steel slag aggregates for tetrapod concrete, the properties of concrete as structural material were investigated. The biochemical research of marine concrete using steel slag aggregates was also carried out. The tested concrete properties are slump, air content, compressive strength, splitting tensile strength, elastic modulus, carbonation, hydration heat, freezing and thawing, sulfate attack, drying shrinkage, etc. The biochemical experiments are carried to research the propagation and reproduction of seaweeds and survival of bottom dwelling species. According to the experimental results, the steel slag aggregate content did not have a significant effect on compressive strength, splitting tensile strength and elastic modulus. The durability of concrete was not influenced by the steel slag aggregate content. From the biochemical research, steel slag aggregate can be evaluated as the material that is ideally suited for promoting propagation and reproduction of seaweeds and survival of bottom dwelling species.

• 한국생물공학회:학술대회논문집
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• 한국생물공학회 2005년도 생물공학의 동향(XVII)
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• pp.393-394
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• 2005

• 한국생물공학회:학술대회논문집
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• 한국생물공학회 2005년도 생물공학의 동향(XVII)
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• pp.397-398
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• 2005

• Advances in Traditional Medicine
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• 제7권1호
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• pp.74-78
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• 2007

The plants, Trianthema decandra and Glinus oppositifolius are commonly used by tribal people in India for the treatment of liver diseases. Hepatoprotective activity of methanol extracts of Glinus oppositifolius and Trianthema decandra at the dose of 250 and 500 mg/kg body weight administered orally was evaluated against paracetamol induced liver damage in rats. Biochemical parameters such as serum glutamate oxaloacetate transaminase, serum glutamate pyruvate transaminase, serum alkaline phosphatase, bilirubin, total serum protein, lipid peroxide and glutathione content of the liver were estimated to determine liver function and metabolism. From the biochemical observations, it was concluded that methanol extracts of Glinus oppositifolius and Trianthema decandra significantly restored the altered biochemical parameters towards normal condition in paracetamol induced liver damage.

• 한국식품영양학회지
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• 제13권3호
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• pp.273-280
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• 2000

This study investigated the correlations among nutrient intakes and biochemical status in Anyang obese children. The average age of the subjects was 11.34${\pm}$1.36yrs. The average BMI was 25.78kg/㎡ in boys and 25.09kg/㎡ in girls. The average percentage of body fat was 25.62 %. Percentages of subjects at dyslipidemia based on corresponding criteria of total cholesterol, triglyceride, HDL-cholesterol, LDL-cholesterol, atherogenic index were 24.05%, 27.85%, 13.92%, 18.99%, 58.23%, respectively, There were significant difference in dietary fat, vitamin A and niacin in subjects by sex. There were no significant difference in energy, carbohydrates, protein, fat, iron, vitamin A, vitamin B$_1$with respect to BMI, but calcium intakes were found significantly correlated with BMI(p<0.05).The percentage of body fat was also positively correlated with animal fat intake, animal calcium intake, diastolic blood pressure and negatively correlated with HDL-cholesterol, atherogenic index, LHR, plant calcium intake, Based upon this study, the children nutritional education is required for better growth and health promotion of primary school children.