• 동의생리병리학회지
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• 제32권6호
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• pp.384-395
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• 2018

The aim of this study was to investigate whether a novel formulation of an herbal extracts has an inhibitory effect on obesity. To determine its anti-obesity effects, we performed anti-obesity-related experiments in vitro and in vivo. Thus, our present study was carried out to evaluate the anti-obesity effect of herbal extracts using a high fat diet (HFD)-induced obese mouse model and 3T3-L1 adipose cells. The effects of each herbal extracts on lipid accumulation in 3T3-L1 cells were examined using Oil Red O staining. Results showed that treatment with each herbal extracts at $10{\sim}100{\mu}g/ml$ had no effect on cell morphology and viability. Without evidence of toxicity, herbal extracts treatment decreased lipid accumulation compared with the untreated adipocytes controls as shown by the lower absorbance of Oil Red O stain. Futhermore, compared with control-differentiated mature adipocytes, each herbal extracts significantly inhibited lipid accumulation in mature 3T3-L1 adipocytes. In the HFD-fed obese mice, body weight, liver weight and white adipose tissue weights were significantly reduced by mixture of herbal extracts administration in mouse skin. Futhermore, we found that mixture of herbal extracts administration suppressed serum triglyceride (TG), and total cholesterol (TCHO) in HFD-induced obese mouse model. The mixture of herbal extracts of permeability was estimated by measuring the transepithelial electrical resistance (TEER) value in pig skin. The optimized formulations of herbal extracts (Test 3 formulation) showed skin permeation. However, test 1 formulation containing essential oil as enhancer showed maximum skin permeation. After confirming the enhanced skin permeability, in vivo studies were performed to assess whether skin irritation potential on the basis of a primary irritation index (PII) in rabbit skin. Reactions were scored for erythema/edema reactions at 24 h, 48 h and 72 h post-application. It was concluded that the test 1 formulation was not irritation (PII = 0). The present study suggests that the test 1 formulation might be of therapeutic interest with respect to the treatment of obesity.

• Asian-Australasian Journal of Animal Sciences
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• 제32권4호
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• pp.592-598
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• 2019

Objective: Autophagy is a bulk degradation system for intracellular proteins which contributes to skeletal muscle homeostasis, according to previous studies in humans and rodents. However, there is a lack of information on the physiological role of autophagy in the skeletal muscle of meat animals. This study was planned as a pilot study to investigate changes in expression of two major autophagy-related genes, microtubule-associated protein 1 light chain $3{\beta}$ (MAP1LC3B) and autophagy related 7 (ATG7) in fattening beef cattle, and to compare them with skeletal muscle growth. Methods: Six castrated Japanese Black cattle (initial body weight: $503{\pm}20kg$) were enrolled in this study and fattened for 7 months. Three skeletal muscles, M. longissimus, M. gluteus medius, and M. semimembranosus, were collected by needle biopsy three times during the observation period, and mRNA levels of MAP1LC3B and ATG7 were determined by quantitative reverse-transcription polymerase chain reaction. The expression levels of genes associated with the ubiquitin-proteasome system, another proteolytic mechanism, were also analyzed for comparison with autophagy-related genes. In addition, ultrasonic scanning was repeatedly performed to measure M. longissimus area as an index of muscle growth. Results: Our results showed that both MAP1LC3B and ATG7 expression increased over the observation period in all three skeletal muscles. Interestingly, the increase in expression of these two genes in M. longissimus was highly correlated with ultrasonic M. longissimus area and body weight. On the other hand, the expression of genes associated with the ubiquitin-proteasome system was unchanged during the same period. Conclusion: These findings suggest that autophagy plays an important role in the growth of skeletal muscle of fattening beef cattle and imply that autophagic activity affects meat productivity.

• 감성과학
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• 제24권2호
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• pp.49-56
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• 2021

본 연구의 목적은 생체 신호 측정 압력 및 인장 직물 센서의 전극을 자수 공정을 이용하여 제작할 때 전도사의 필요 물성을 파악하는 것이다. 스마트 웨어러블 제품의 전극을 전도사를 이용한 자수 공정을 통해 전극 및 회로 등을 제작하면 불필요한 재료 손실이 없고 복잡한 전극 모양이나 회로 디자인을 컴퓨터 자수기를 이용하여 추가 공정 없이 제작할 수 있다. 하지만 보통의 전도사는 자수 공정 내의 부하를 못 이기고 사절 현상이 발생하기에 본 연구에서는 silver coated multifilament yarn 3종류의 기계적 물성인 S-S curve, 두께, 꼬임 구조 등을 분석하고 동시에 자수기의 실의 부하를 측정하여 자수 공정 내 전도사의 필요 물성을 분석하였다. 실제 샘플 제작에서 S-S curve의 측정 결과가 가장 낮은 silver coated polyamide/polyester가 아닌 silver coated multifilament의 사절이 발생하였으며 그 차이는 실의 꼬임 구조와 사절이 일어난 부분을 관찰한 결과 수직으로 반복적인 부하가 일어나는 자수 공정에서 꼬임이 풀리면서 사절이 일어나는 것을 알 수 있었다. 추가적으로 압저항 압력/인장 센서를 제작하여 생체 신호 측정용 지표인 gauge factor를 측정하였으며 스마트 웨어러블 제품의 대량 생산화에 중요한 부분인 자수 전극 제작으로의 적용 가능성을 확인하였다.

• 동의생리병리학회지
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• 제34권6호
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• pp.348-354
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• 2020

Oryeong-san (ORS) is a traditional Korean herbal medicine widely used for renal associated diseases, composed of five medicine herbs; Atractylodes japonica Koidzumi, Cinnamomum cassia Presl, Polyporus umbellatus Fries, Poria cocos Wolf and Alisma orientale Juzepzuk. We studied to improve the convenience of intake and portability by developing modernized dosage forms, and examined the effect on anti-inflammation of ORS. In order to develop the tablet formulation of ORS (ORS-F), the tablets were evaluated on the basis of physical characteristics include diameter, thickness, weight variation, hardness, friability and disintegration. To analyze the marker components of ORS-F, eight index markers from five herbal medicines were chosen. And the method using high performance liquid chromatography (HPLC) with diode-array detector method was established for the simultaneous analysis. The biological activities were examined the effect of ORS-F on pro-inflammation mediated by LPS-stimulation. The production of nitric oxide (NO) and cytokines were determined by reacting cultured medium with griess reagent and enzyme-linked immunosorbent assay (ELISA). The expression of cyclooxygenase-2 (COX-2) and inducible NO synthase (iNOS) were investigated by Western blot and RT-PCR. The anti-oxidant activities of OJS-F increased markedly, in a dose-dependent manner. and, The total phenolic compound and flavonoids contents of OJS-F were 10.20±0.09 ㎍/㎎ and 12.86±0.86 ㎍/㎎. OJS-F which is LPS has diminished in the LPS-induced release of inflammatory mediators (NO, iNOS, COX2 and PGE2) and pro-inflammatory cytokines (TNF-α, IL-6 and IL-1β) from the RAW264.7 macrophages. Therefore, the developed formulation for tablet of ORS-F provide efficiency and usability, and indicated effect of anti-inflammation.

• 동의생리병리학회지
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• 제35권1호
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• pp.28-35
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• 2021

To analyze the clinical efficacy of acupuncture for spastic hemiplegia after stroke, this study was accomplished by considering Randomized Controlled Trials. We searched for papers that performed acupuncture for spastic hemiplegia after stroke in the China Academic Journal of the China National Knowledge Infrastructure, from January 1, 2017 to June 30, 2020. In total, 23 reports were included in this review. There are 18 studies conducted with more than 50 subjects and less than 100 subjects. The largest number of treatment was 20 times. 28days(4weeks) was the largest number of treatment period, which accounted 10 studies. The most frequently used evaluation index was The Fugl-Meyer Assessment(FMA) and Clinical Efficacy, each used 21 times and 17 times. The most frequently used acupuncture point was LI3, which was used 13 times. The retention time was 30 minutes and 11 studies were conducted. Western medicine treatment was the most common control group in 15 studies. Most of studies showed result of the intervention group was statistically significant, compared with the control group. These results suggest that acupuncture for spastic hemiplegia after stroke was effective and it was statistically more significant than the control group. However, it is difficult to confirm a conclusion, because the quality of most of studies was low.

• 동의생리병리학회지
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• 제35권6호
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• pp.242-248
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• 2021

This study aims to compare nail-fold capillary blood velocity (CBV) according to the presence or absence of cold hypersensitivity in the hands (CHH) using nail-fold capillaroscopy under cold stress conditions. Eleven participants were taken from the cohort study for observing long-term health status of the faculty of Semyung university. Seven of the participants displayed CHH while four showed signs of non-CHH. CBV between 0 and 60 seconds (S1) and between 240 and 300 seconds (S2) was measured under cold stress for 5 minutes, respectively, and the average value was used to compare non-CHH group and CHH group. Body mass index, Nogung (PC8) temperature and temperature difference between Nogung (PC8) and Hyeopbaek (LU4) were significantly lower in CHH group compared to non-CHH group. The S2-S1 CBV difference was negatively correlated with PC8 temperature and PC8-LU4 temperature, and positively correlated with cold pattern score and cold hypersensitivity visual analog scale. The CHH group had a lower CBV overall than non-CHH group, and the S2-S1 CBV difference was significantly higher in the CHH group than in non-CHH group. This study suggests that CBV measured by nail-fold capillarosopy might be a useful indicator of cold hypersensitivity properties.

• Animal Bioscience
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• 제35권2호
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• pp.224-235
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• 2022

Objective: Cage rearing has critical implications for the laying duck industry because it is convenient for feeding and management. However, caging stress is a type of chronic stress that induces maladaptation. Environmental stress responses have been extensively studied, but no detailed information is available about the comprehensive changes in plasma metabolites at different stages of caging stress in ducks. We designed this experiment to analyze the effects of caging stress on performance parameters and oxidative stress indexes in ducks. Methods: Liquid chromatography tandem mass spectrometry (LC/MS-MS) was used to determine the changes in metabolites in duck plasma at 5 (CR5), 10 (CR10), and 15 (CR15) days after cage rearing and traditional breeding (TB). The associated pathways of differentially altered metabolites were analyzed using Kyoto encyclopedia of genes and genomes (KEGG) database. Results: The results of this study indicate that caging stress decreased performance parameters, and the plasma total superoxide dismutase levels were increased in the CR10 group compared with the other groups. In addition, 1,431 metabolites were detected. Compared with the TB group, 134, 381, and 190 differentially produced metabolites were identified in the CR5, CR10, and CR15 groups, respectively. The results of principal component analysis (PCA) show that the selected components sufficiently distinguish the TB group and CR10 group. KEGG analysis results revealed that the differentially altered metabolites in duck plasma from the CR5 and TB groups were mainly associated with ovarian steroidogenesis, biosynthesis of unsaturated fatty acids, and phenylalanine metabolism. Conclusion: In this study, the production performance, blood indexes, number of metabolites and PCA were compared to determine effect of the caging stress stage on ducks. We inferred from the experimental results that caging-stressed ducks were in the sensitive phase in the first 5 days after caging, caging for approximately 10 days was an important transition phase, and then the duck continually adapted.

• Journal of Animal Science and Technology
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• 제64권6호
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• pp.1046-1062
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• 2022

This study investigated the effects of L-glutamine (Gln) supplementation on growth performance, physiological traits, heat shock proteins (HSPs), and gene expression related to muscle and adipose tissue development in Hanwoo steers under heat stress (HS) conditions. Eight Hanwoo steers (initial body weight [BW] 570.7 ± 43.6 kg, months of age 22.3 ± 0.88) were randomly separated into two groups, control and treatment, and supplied with the concentration (1.5% of BW kg/day/head) and rice straw (1.5 kg/day/head). The treatment group were fed the Gln supplementation (0.5% of concentration, as-fed basis) once a day at 08:00 h. Blood samples for the assessment of haematological and biochemical parameters and the separation of peripheral blood mononuclear cells (PBMCs) were collected four times, at 0, 3, 6, and 10 weeks of the experiment. Feed intake was measured daily. BW to analyze growth performance and hair follicle collection to analyze the expression of HSPs were executed four times at 0, 3, 6, and 10 weeks. To analyze gene expression, longissimus dorsi muscle samples were collected by biopsy at the end of the study. As a result, growing performance, including final BW, average daily gain, and gain-to-feed ratio, were not different between the two groups. Leukocytes including lymphocytes and granulocytes, tended to increase in the Gln supplementation group (p = 0.058). There were also no differences in biochemical parameters shown between the two groups, except total protein and albumin, both of which were lower in the Gln supplementation group (p < 0.05). Gene expressions related to muscle and adipose tissue development were not different between the two groups. As temperature-humidity index (THI) increased, HSP70 and HSP90 expression in the hair follicle showed a high correlation. HSP90 in the hair follicle was decreased in the treatment group compared with the control group at 10 weeks (p < 0.05). Collectively, dietary Gln supplementation (0.5% of concentration, as-fed basis) may not be influential enough to affect growth performance and gene expression related to muscle and adipose tissue development in steers. However, Gln supplementation increased the number of immune cells and decreased HSP90 in the hair follicle implying HS reduction in the corresponding group.

• 한국작물학회지
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• 제32권4호
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• pp.409-416
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• 1987

본시험은 남부지역에 있어서 파종기 이동이 콩의 건물생산능력 및 생리, 생태적특성에 미치는 영향을 파악하여 적정 파종 한계기를 제시하고자 ＇82년∼＇84년도 3개년에 걸쳐 시험을 실시하였던바 다음과 같은 결과를 얻었다. 1. 만파할수록 개화일수, 성숙기 개화기간 등은 크게 단축되었고 품종가 차이도 인정되었으며 엽후는 만파에 의하여 두꺼워지는 반면, 엽면적은 감소하였고, CGR은 활엽기를 전후하여 뚜렷한 차이를 보였는데 7월 9일 파종기는 타 파종기의 50% 내외의 작물생자율을 나타내었다. 2 건물중은 만파할수록 현저히 감소되었으나 100 입중을 제외한 다른 수량구성요소는 5월 10일과 5월 30일간에 비슷한 경향을 나타냈다. 3. 10a당 수량은 5월 10일 파종구 225kg, 5월 30일 239kg, 6월 19일 188kg, 7월 9일은 101kg으로 5월 30일 파종구의 수량이 가장 높았으며 품종간에는 단엽콩이 파종기 이동에 의한 수량변이폭이 가장 작았다.

• 한국노년학
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• 제29권1호
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• pp.117-134
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• 2009

본 연구의 목적은 노인들에게 맞는 건강한 노후에 관한 안정적인 신뢰도와 적절한 타당도를 갖춘 척도를 개발하는 것이다. 서울에 거주하고 노인복지관을 다니며, 정기적으로 운동을 하고 있는 노인 전체 335명(예비 척도 개발에 65세 이상의 노인 127명, 1차 본 조사 척도 개발에 62명, 2차 본 조사 척도 개발에 146명을 대상)을 대상으로 하였고, 건강한 노후에 관한 개방형 질문지와 개발된 건강한 노후 척도를 통해 설문지의 타당도와 신뢰도를 검증하였다. 조사기간은 2006년 6월 12일부터 2006년 10월 27일까지 실시되었고, 자료처리는 Window용 SPSS 통계 Package 12.0 Version을 이용하여 평균, 표준편차, 첨도, 왜도, 신뢰도 분석, 탐색적 요인 분석, 확인적 요인분석을 실시하였다. 연구의 결과는 다음과 같이 나타났다. 첫째, 구성 개념 틀에 근거하여 만들어진 25개의 문항들에 대해서는 노인관련 전공교수 1명, 노인 여가학 박사 2명 등의 자문집단을 통해 내용타당도를 높였다. 둘째, 탐색적 요인분석 결과 건강한 노후 척도는 신체적 건강(6문항), 인지·정신적 건강(6문항), 사회·지지적 건강(8문항)의 3개의 하위요인으로 추출되었다. 셋째, 신뢰도 검사 결과 전체 문항에 대한 Cronbach's α는 .891로 높은 신뢰도를 보였고, 요인별 설문지의 내적 일관성 검정 결과는 각각 .642에서 .885의 범위를 나타냈다. 넷째, 확인적 요인분석 결과 본 연구에서 적합지수로 판단한 NFI, RFI, CFI, Delta 2 IFI값들 은 1에 가깝게 나타났다. 따라서 본 연구에서 결과로 도출된 타당도와 신뢰도의 결과들을 살펴봤을 때, 개발된 건강한 노후에 대한 설문지는 예비조사, 본 조사의 과정을 거쳐 확인된 신뢰도와 타당도가 이론적 기준에 벗어나지 않은 적절한 도구이며, 특히 노인들의 건강한 노후 생활에 대한 기준과 틀을 제시한다는 점에서 그 의의가 있다고 하겠다.