• Title/Summary/Keyword: Pouch

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A Comparative Study of Anti-inflammatory Activities of the Steroid Compounds Utilizing the 'Granuloma Pouth' Technic (육아종낭법(肉芽腫囊法)('Granuloma pouch' technic)을 이용(利用)한 Steroid 화합물(化合物)의 소염작용(消炎作用) 비교(比較))

  • Lee, Sang-Bok
    • The Korean Journal of Pharmacology
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    • v.1 no.1 s.1
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    • pp.47-52
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    • 1965
  • There are several methods used for screening and evaluating anti -inflammatory agents. Among these, 'Granuloma pouch' technic introduced by Hans Selye is considered as a simple and reliable method. The procedure of 'Granuloma pouch' technic is as follows: Rats were used as experimental animals. An air pocket was produced in the subcutaneous tissue of the mid-dorsal portion between the shoulders by the injection of 25ml of the air which was immediately followed by injection of 1 ml of 1% croton oil as irritant. Inflammatory exudate accumulated in the pouch during the succeeding 14 days. After sacrificing the rats on the last day of the experiment, the amount of the exudate in the pouch and the weight of the granuloma tissue was measured. The author observed and compared the anti-inflammatory activities of the several steroid compounds when they are given by different methods. 1. In the control rats, the amount of inflammatory fluid and the weight of the granuloma tissue after 14 days were 9ml and 3gm respectively. 2. Injection of hydrocortisone 1.5mg subcutanenusly, 24 hours prior to pouch formation into the area where the pouch is to be formed, successfully prevented the inflammatory processes. 3. Injection of hydrocortisone 1.5mg in the air pocket formed 24 hours prior to croton oil injection was ineffective. 4. Injection of hydrocortisone into the pouch at a distance of 5mm apart from the pouch formation did not prevent the development of inflammation. 5. Anti-inflammatory activities of hydrocortisone administered systematically(injected intramuscularly into the area which is not related to the area of pouch formation) for 10 days were proportional to the doses of hydrocortisone administered. 6. DOCA, testosterone, and progesterone did not show the anti-inflammatory activity.

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A Study of Retort-pouch Soybean Paste Pot Stew (Retort-pouch 된장찌개 품질에 관한 연구)

  • 김경자;강정희
    • Korean journal of food and cookery science
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    • v.12 no.4
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    • pp.541-546
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    • 1996
  • This study was attempted to evaluate quality of retort-pouched conuiment food by adding garlic, ginger, redpepper in cooking soybean paste pot stew. Cooked and storaged retort-pouch soybean paste pot stew with four different levels of garlic, ginger, red-pepper (T$_1$garlic 2%, T$_2$: ginger l%, T$_3$: red-pepper 2%,T$_4$: garlic 2%+ginger 1 %) was tested for sensory evaluation, pH, TBA value, and microbiological number changes. 1) No systematic increase of total bacteria counts was detected during the storage periods for bowl or retort pouch soybean-paste samples. The inclusions of ginger extract did not pose any microbiological safty problem. 2) Sensory evaluation conducted by fifteen university students as panelists showed that there were significant differences among five samples in color, flavour, and appearance and a notable preference for T$_1$ sample. 3) There was a slowly increase of TBA value during the first 5-7 days of storage in retort-pouch and bowl. The inclusion of ginger extract at 1.0% level tended to lower TBA values.

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Electric vehicle Pouch battery dimension inspection system (전기자동차 파우치 배터리 치수검사 시스템)

  • Lee, Hyeong-Seok;Kim, Jea-Hee
    • Journal of Korea Multimedia Society
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    • v.24 no.9
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    • pp.1203-1210
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    • 2021
  • In this paper, we developed the inspection system of electric vehicle pouch battery using image processing. Line scan cameras are used for acquiring the all parts of the pouch battery, and several steps of image processing for extracting significant dimensions(User Required Position) of the battery. In image processing, edge lines, node points, dimension lines, etc. were extracted using Preprocessor, Square Edge Detection, and Size Detection algorithms. This is used to measure the dimensions of the location requested by the user on the pouch battery. For verification of the inspection system, the dimensions of three pouch batteries produced in the same process were measured, and the mean and standard deviation were obtained to confirm the precision.

Expression and Functional Analysis of cofilin1-like in Craniofacial Development in Zebrafish

  • Jin, Sil;Jeon, Haewon;Choe, Chong Pyo
    • Development and Reproduction
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    • v.26 no.1
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    • pp.23-36
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    • 2022
  • Pharyngeal pouches, a series of outgrowths of the pharyngeal endoderm, are a key epithelial structure governing facial skeleton development in vertebrates. Pouch formation is achieved through collective cell migration and rearrangement of pouch-forming cells controlled by actin cytoskeleton dynamics. While essential transcription factors and signaling molecules have been identified in pouch formation, regulators of actin cytoskeleton dynamics have not been reported yet in any vertebrates. Cofilin1-like (Cfl1l) is a fish-specific member of the Actin-depolymerizing factor (ADF)/Cofilin family, a critical regulator of actin cytoskeleton dynamics in eukaryotic cells. Here, we report the expression and function of cfl1l in pouch development in zebrafish. We first showed that fish cfl1l might be an ortholog of vertebrate adf, based on phylogenetic analysis of vertebrate adf and cfl genes. During pouch formation, cfl1l was expressed sequentially in the developing pouches but not in the posterior cell mass in which future pouch-forming cells are present. However, pouches, as well as facial cartilages whose development is dependent upon pouch formation, were unaffected by loss-of-function mutations in cfl1l. Although it could not be completely ruled out a possibility of a genetic redundancy of Cfl1l with other Cfls, our results suggest that the cfl1l expression in the developing pouches might be dispensable for regulating actin cytoskeleton dynamics in pouch-forming cells.

Physical and Microbiological Changes of Sliced Process Cheese Packaged in Edible Pouches during Storage

  • Ryu, Sou-Youn;Koh, Kyung-Hee;Son, Sook-Mee;Oh, Myung-Suk;Yoon, Jung-Ro;Lee, Won-Jong;Kim, Suk-Shin
    • Food Science and Biotechnology
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    • v.14 no.5
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    • pp.694-697
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    • 2005
  • The objectives of this study were to compare the quality changes of cheese slices individually packed in four kinds of edible pouches in order to select the most suitable variety for individual packaging. The edible Z2 pouch (zein with oleic acid) was selected as maintaining the best cheese qualities based on the physical and microbiological changes undergone by the samples over 4-week storage at $5^{\circ}C$. The cheese sample individually packed in Z2 inner edible pouch and repacked in a plastic (OPP/LLDPE) outer pouch was not significantly different in physical and microbiological changes from that individually packed in a plastic (OPP/LLDPE) inner pouch and repacked in a plastic (OPP/LLDPE) outer pouch. Therefore, it may be concluded on the basis of the physical and microbiological evidence that the Z2 edible pouch can be used as an inner package for cheese slices when it is inside a plastic outer pouch.

A Feasible Role of Neuropilin Signaling in Pharyngeal Pouch Formation in Zebrafish

  • Chong Pyo Choe
    • Development and Reproduction
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    • v.27 no.3
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    • pp.137-147
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    • 2023
  • Pharyngeal pouches are an important epithelial structure controlling facial skeletal development in vertebrates. A series of pouches arise sequentially in the pharyngeal endoderm through collective cell migration followed by rearrangement of pouch-forming cells. While crucial transcription factors and signaling molecules have been identified in pouch formation, a role for Neuropilins (Nrps) in pouch development has not yet been analyzed in any vertebrates. Nrps are cell surface receptors essential for angiogenesis and axon guidance. In all vertebrates, the two Nrp family members, Nrp1 and Nrp2, are conserved in the genome, with two paralogs for Nrp1 (Nrp1a and Nrp1b) and Nrp2 (Nrp2a and Nrp2b) being identified in zebrafish. Here, I report a potential requirement of Nrp signaling in pouch development in zebrafish. nrp1a and nrp2b were expressed in the developing pouches, with sema3d, a ligand for Nrps, being expressed in the pouches. Knocking down Nrps signaling in the pharyngeal endoderm led to severe defects in pouches and facial cartilages. In addition, blocking Mitogen-activated protein kinase (MAPK) activities, a downstream effector of Nrp signaling, in the pharyngeal endoderm caused similar defects in pouches and facial skeleton to those by knocking down Nrps signaling. My results suggest that Nrp signaling acts for pouch formation through MAPK.

Studies on the Developing New Methods to Prepare Strawberry Jam 1. Pouch Jam prepared by Concentration with Cut-back (새로운 딸기잼 제조방법 개발에 관한 연구 1. Cut-back농축방법을 이용한 Pouch Jam)

  • 심우만;이상현
    • The Korean Journal of Food And Nutrition
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    • v.2 no.1
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    • pp.27-31
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    • 1989
  • Studies were conducted on the preparation methods of strawberry jam. Strawberry was homogenized and centrifuged to serum-pulp portion. Concentration of strawberry serum was carried out at 55~58$^{\circ}C$ under pressure of 30~60mmHg. Strawberry jam bases were mixed throughly and stuffed in retortable pouch, The pouch was sterilized to make a new strawberry jam. The characteristics of new type ism was analyzed gas chromatographic profile, and sensory evaluations.

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Quality Changes in Winter Chinese Cabbage with Various Storage Methods (저장 조건에 따른 월동배추의 품질 변화)

  • 강은주;정석태;임병선;조재선
    • Food Science and Preservation
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    • v.6 no.2
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    • pp.173-178
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    • 1999
  • This study was conducted to investigate the quality changes of Chinese cabbage with various storage methods. The V/H ratio, as reference of withering, of Chinese cabbage in PE film was high. Ethanol contents of Chinese cabbage packed with 0.06mm and 0.1mm PE film pouch were greater than that with 0.03mm PE film pouch. Organic acid and sugar contents in the Chinese cabbage were gradually decreased during storage. Chinese cabbage packed with 0.03mm PE film pouch was more adaptable than 0.06mm PE film pouch in winter Chinese cabbage during storage. The CO$_2$ contents in PE film pouch was increased hums 15days of storage, and then not changed during storage. The change of O$_2$ contents in PE film Pouch was opposed to tendency of CO$_2$ change. The 0.06mm and 0.1mm PE film Pouch high CO$_2$ contents and low O$_2$ contents during the storage, were less adaptable than 0.03mm PE film pouch in the winter Chinese cabbage storage.

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The Effect of Repeated Application of A Mouthwash to the Mucosa of the Hamster Cheek Pouch (햄스터에서 에이 마우스워시의 구강점막자극시험)

  • 강경선;제정환;김형섭;김경배;이지해;조성대;조종호;김배환;이병렬
    • Toxicological Research
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    • v.17 no.1
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    • pp.11-15
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    • 2001
  • This study was carried out to evaluate the irritant potential of A mouthwash in hamster cheek pouch. The test substances were applied twice daily to right pouches of hamsters for 14 consecutive days. Animals were administered with A mouthwash, Listerine, saline and control solution, respectively. In order to evaluate the irritant potential in mucosa of hamster cheek pouch, we observed clinical signs, mortality, body weight changes and gross and histopathological findings for 14 days. In all groups, there were neither dead animals nor significant changes of body weights. In addition, there were no differences between saline and A mouthwash treated group in gross and histopathological findings. Therefore, these results suggest that there was no irritant potential of A mouthwash in hamster cheek pouch.

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Novel estimation method of operating life in lithium-ion pouch cells

  • Kim, Hyosung;Kim, Jaekwang;Kim, Nayeong;Lee, Ilbok;Hwang, Keebum;Bae, Joongho;Yoon, Songhun
    • Journal of Industrial and Engineering Chemistry
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    • v.67
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    • pp.266-275
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    • 2018
  • Herein, a novel operating life (OL) test method was evaluated with 200 mAh pouch-type lithium-ion batteries. By combining the calendar life (CL) test with intermediate pulse power cycling, more realistic life prediction was possible, which encompassed real operation of batteries accompanying with thermal acceleration. Larger capacity decrease and resistance increase of pouch cell were observed in the OL test, which was well explained using the SEI film growth model. After dissemble of pouch cell, capacity loss and resistance increase mostly occurred within anode, reflecting that SEI film growth on anode surface was highly attributable to cell degradation.