• 제목/요약/키워드: beta-function

검색결과 1,470건 처리시간 0.03초

Effects of Blends of Low-Protein Winter Wheat Flour and Barley Byproducts on Quality Changes in Noodles

  • Lee, Na-Young
    • Preventive Nutrition and Food Science
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    • 제21권4호
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    • pp.361-366
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    • 2016
  • The physicochemical characteristics of fresh noodles made with blends of low-protein wheat flour and barley byproduct (BBP, $250{\mu}m$) were investigated. The crude protein contents (PC) of flour from Goso and Backjoong cultivars were 7.91% and 7.67%, respectively. PC and ${\beta}$-glucan contents from the BBP were 14.10% and 3.11%, respectively, which were higher than those in wheat flour. The water-holding capacity (WHC) of various blends was increased as a function of BBP but not gluten contents. Goso flour had the highest starch content (78.68%), with peak and final viscosities of 3,099 and 3,563 cp, respectively. Peak and final viscosities, trough, breakdown, and setback of the blends were decreased with the addition of BBP. Noodles made with Backjoong had the highest thickness score, while the hardness of noodles made with blends of Goso or Backjoong and 20% BBP were similar to those made from wheat flour only. The WHC of the samples was strongly correlated with PC, crude fiber, and ${\beta}$-glucan. The PC was not correlated with final viscosity, setback, thickness, hardness, gumminess, or chewiness.

중년여성의 지각된 건강상태, 자아존중감, 가족기능이 노화에 대한 기대에 미치는 영향 (Effects of Perceived Health Status, Self-esteem and Family Function on Expectations Regarding Aging among Middle-aged Women)

  • 권유림;전해옥
    • 대한간호학회지
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    • 제43권2호
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    • pp.176-184
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    • 2013
  • Purpose: The purpose of this study was to investigate expectations regarding aging by middle-aged women in the community, and identify factors contributing to their expectations about aging. Methods: Participants in the survey for this study were 303 middle-aged women from community health centers and religious facilities in Seoul, Gyeonggi Province, and Chungcheongbuk Province. Data were collected from March 2 to April 17, 2012 using self-report structured questionnaires. The instruments were the Health Perceptions, Rosenberg Self-esteem Scale (RSES), Family APGAR, Expectations Regarding Aging (ERA-12). The data were analyzed using t-test, one-way ANOVA, Scheffe test, Pearson correlation coefficients and hierarchical multiple regression with IBM SPSS/WIN 20.0 program. Results: Perceived health status (${\beta}$=0.16, p=.009) and self-esteem (${\beta}$=0.20, p=.001) of middle-aged women were identified as significant predictors of expectations regarding aging, after adjusting for age, education, occupation, monthly income and menstrual status. Conclusion: These results suggest that nurses should make an effort to improve expectations about aging among middle-aged women. Ultimately, community health programs for middle aged women need to be developed to achieve successful aging.

고진음자(固眞飮子)가 Alzheimer Disease 병태모델의 신경세포 손상에 미치는 영향 (Effect of Gojineumja(Guzhenyinzi) on Neural Tissue Degeneration In Mouse Model of Alzheimer Disease)

  • 김현주;정인철;이상룡
    • 동의신경정신과학회지
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    • 제20권2호
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    • pp.31-46
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    • 2009
  • Objectives : This experiment was designed to investigate the effect of Gojineumja(Guzhenyinzi, GJEJ) on damaged neural tissue in cultured glial cells and in the mouse brain tissue. Methods : The effects of the GJEJ on activation of astrocytes and caspase 3-positive cell counts in cultured glial cells administered with ${\beta}$-amyloid peptide were investigated. The effects of the GJEJ on levels of glial fibrillary acidic protein(GFAP)-positive reactive astrocyets and caspase 3-positive cells in the hippocampal subfields in the rats administered with scopolamine were investigated. Results : 1. GJEJ reduced levels of activated astrocytes and caspase 3-positive cell counts in cultured glial cells administered with ${\beta}$-amyloid peptide. 2. GJEJ reduced levels of GFAP-positive reactive astrocyets and caspase 3-positive cells in the hippocampal subfields in the rats administered with scopolamine. Conclusions : The present data. suggest that GJEJ may have a protective function of neuronal and non-neuronal cells in damaged neural tissue caused by AD-like stimulations. Further studies on identification of effective molecular components of GJEJ and their interactions with damaged neural cells would be important for understanding molecular mechanism and may be further applicable for the development of therapeutic strategies.

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$Co^{60}-{\gamma}$ 선으로 조사된 이축 연신된 폴리프로필렌 필름의 열자격 특성에 관한 연구 (A Study on the Characteristics of TSC for BOPP Irradiatied by $Co^{60}-{\gamma}$ ray)

  • 송강영;박승협;류부형;홍진웅;이준웅;김봉흡
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 1990년도 하계학술대회 논문집
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    • pp.195-198
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    • 1990
  • In order to investigate the radiation effects induced to electrical properties of Biaxially-Oriented Polypropylen film, several observations were carried out to the sample irradiated to various dose by $Co^{60}-{\gamma}$ ray, on the characteristics of TSC spectra measuered as a function of electric field applied to a sample of 15[ ${\mu}m$] thick. The TSC spectra observed in the temperature range of $153{\sim}403[K]$ with the electric field of intensity $10{\sim}60$ [MV/m], have shown two of the distinguished peak such as ${\beta}$, ${\alpha}$, each of which appeared at $-5{\sim}20$ [ $^{\circ}C$] and 90 [ $^{\circ}C$] respectively. As the conclusions, obtained from the studies, the origin of ${\alpha}$ peak in TSC seems to be attributed by thermal excitation of ions trapped with $0.4{\sim}0.8[eV]$ deep, at the defects formed by $Co^{60}-{\gamma}$ irradiation in a crystaline region. The origin of ${\beta}$ peak was regarded as the depolarization process of "OH" or "CO" dipole with the activation energy of $0.4{\sim}0.6[eV]$ in an amorphous region.

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Multiple Endocrinologic Complications in Thalassemia Major

  • Wong, Siong Hu;Omar, Julia;Ismail, Tuan Salwani Tuan
    • 대한임상검사과학회지
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    • 제49권4호
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    • pp.495-497
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    • 2017
  • Thalassemia major is a genetic disorder with a defective synthesis of either the alpha or the beta chain of hemoglobin A. Blood transfusion is crucial for the survival in these patients. Unfortunately, endocrine dysfunction is a very common complication in these patients and is principally due to excessive iron overload as a result of frequent blood transfusions. Although regular blood transfusion may increase life expectancy, disturbances in growth and pubertal development, abnormal gonadal functions, impaired thyroid, parathyroid and adrenal functions, diabetes, and disorderly bone growth are common side effects. We hereby present a case of a 23-year-old, unmarried woman with beta thalassemia major presenting with primary amenorrhea, poor development of secondary sexual character, and short stature. Thorough history, clinical examination, and laboratory investigation, including dynamic function test (insulin tolerance test) were conducted. These tests confirmed that she had multiple endocrinopathies, including hypogonadotropic hypogonadism, growth hormone deficiency, and subclinical adrenal insufficiency, which were caused by iron overload. She required hormone replacement therapy. Early recognition of possible deficiencies in hypothalamo-pituitary-end organ hormones caused by iron overload in thalassemia patients that undergo frequent blood transfusion procedures is essential. Appropriate treatments, including transfusion regimen and chelation therapy, as well as specific treatment of each complication are the crucial for the successful management and improvement of quality of life these patients.

양지꽃(Potentilla fragarioides) 지상부의 항산화물질 (Antioxidative Compounds in Aerial Parts of Potentilla fragarioides)

  • 최용화;김명조;이행순;윤봉식;호창서;곽상수
    • 생약학회지
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    • 제29권2호
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    • pp.79-85
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    • 1998
  • Six antioxidative compounds in the aerial parts of Potentilla fragarioides were isolated by a bioassay guided purification using a DPPH free radical. They were identified as (+)-catechin, isoquercitrin, quercitrin, $quercetin-3-O-{\beta}-D-glucopyranosyl-{\beta}-D-xylopyranoside$, caffeic acid, and 4-O-caffeoyl-L-threonic acid on the basis of $^{1}H$ and $^{13}C-NMR$ and MS data. The DPPH radical scavenging activity of five compounds $(RC_{50}:\;7.5{\sim}10.5\;{\mu}g)$ except for quercitrin $(16\;{\mu}g)$ was more effective than those of ${\alpha}-tocopherol$ $(12\;{\mu}g)$ and BHA $(14\;{\mu}g)$.

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Aloe-Emodin Protects RIN-5F (Pancreatic β-cell) Cell from Glucotoxicity via Regulation of Pro-Inflammatory Cytokine and Downregulation of Bax and Caspase 3

  • Alshatwi, Ali A;Subash-Babu, P.
    • Biomolecules & Therapeutics
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    • 제24권1호
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    • pp.49-56
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    • 2016
  • To determine the protective effect of aloe-emodin (AE) from high glucose induced toxicity in RIN-5F (pancreatic ${\beta}$-cell) cell and restoration of its function was analyzed. RIN-5F cells have been cultured in high glucose (25 mM glucose) condition, with and without AE treatment. RIN-5F cells cultured in high glucose decreased cell viability and increased ROS levels after 48 hr compared with standard medium (5.5 mM glucose). Glucotoxicity was confirmed by significantly increased ROS production, increased pro-inflammatory (IFN-${\gamma}$, IL-$1{\beta}$,) & decreased anti-inflammatory (IL-6&IL-10) cytokine levels, increased DNA fragmentation. In addition, we found increased Bax, caspase 3, Fadd, and Fas and significantly reduced Bcl-2 expression after 48 hr. RIN-5F treated with both high glucose and AE ($20{\mu}M$) decreased ROS generation and prevent RIN-5F cell from glucotoxicity. In addition, AE treated cells cultured in high glucose were transferred to standard medium, normal responsiveness to glucose was restored within 8hr and normal basal insulin release within 24 hr was achieved when compared to high glucose.

근로자의 서서하는 작업시간과 대사증후군의 관련성 (Association Between Occupational Standing Time and Metabolic Syndrome in Korean Male Workers)

  • 김기웅
    • 한국산업보건학회지
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    • 제24권3호
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    • pp.383-392
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    • 2014
  • Purpose: In this study, we sought to understand the risk factor for chronic disease of workers by studying the association between occupational standing time and metabolic syndrome(MetS) in full-time 300 male workers. Materials: Data on age, life habit, work related information of the subjects were surveyed using self-reported questionnaire and interview. MetS was identified based on the report of Alberti et al.(2009). As for the data analysis, SPSS 19.0 was used to conduct the descriptive statistic, ANOVA, Pearson correlation coefficient and multiple logistic regression analysis. Results: Daily working hour affects on the lifting heavy objects, running and strenuous exercise(r=-0.137, p<0.01), and total physical function decreased with the increase in age(r=-0.145, p<0.01). Also, obese was significantly associated with genuflection and bend over(r=-0.110, p<0.05). On multiple logistic regression analysis for the diagnostic indices of MetS, occupational standing time were significantly associated with waist circumference(odds ratio=0.885, ${\beta}$ value=-0.122, 95% CI=0.797-0.983, p<0.05) and triglyceride (odds ratio=0.873, ${\beta}$ value=-0.136, 95% CI=0.800-0.953, p<0.01). Conclusions: These results suggest that the working posture may be important risk factor in pathogenesis and growing of MetS and cardiovascular disease.

유전자 변환 동물 생산을 위한 Plasmid Vector(pSS4)의 개발 (Development of a Plasmid Vector(pSS4) for the Use in Animal Transgenesis)

  • 전진태;이상호;박성수
    • 한국가축번식학회지
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    • 제17권3호
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    • pp.263-267
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    • 1993
  • Transgenic animals have become an important tool in the basic and applied sectors of genetic and biomedical sciences. In particular transgenes provide clear-cut markers in the spatial and temporal analysis of developing embryos for the understanding of developmental mechanisms. For the long-term use of plasmid vector in a particular purpose it would be necessary to develop one's own vector system which can be properly expressed in eukaryotic system. Plasmids were constructed from ori region of pUC19 and early region of SV40 through various steps. LacZ gene coding for $\beta$-galactosides was fused to early gene of SV40 in translational in-frame. Poly(A) tailing site of SV40 was inserted at the 3' lacZ so that initiation, elongation and terminatin be controlled by SV40 transcription (pSS4). Biological function of the constructed pSS4 was demonstrated via microinjection of the plasmid into fertilized loach eggs and subsequent detection of $\beta$-galactosidase in developing embryos. The result indicate that the newly constructed pSS4 is functional in a eukaryotic system in vivo. Thus pSS4 may be used as an efficient tool for the study of embryogenesis and a basic carrier for various genes for animal transgenesis.

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이원효소 연쇄반응의 형광분석에 의한 Urinary Dipeptidase의 활성도 측정 (Two-enzyme coupled fluorometric assay of urinary dipeptidase)

  • 박행순;위정순
    • 분석과학
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    • 제8권3호
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    • pp.359-364
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    • 1995
  • Urinary dipeptidase와 alanine dehydrogenase의 연쇄반응을 이용한 형광분석법을 개발하였다. 반응계는 기질로서 L-ala-ala, ${\beta}-NAD^+$, L-alanine dehydrogenase와 pH 9의 12.5mM sodium carbonate buffer를 포함하며 urinary dipeptidase를 가함으로써 반응을 시작했다. 생성된 NADH는 여기파장 340nm, 형광파장 460nm에서 측정했다. 기존의 glycyldehydrophenylalanine(Gdp)의 가수분해 방법과 형광분석법을 비교한 결과 0.996의 높은 상관계수를 나타냈으며 10배 이상의 감도 증가를 보였다.

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