• 제목/요약/키워드: physiological property

검색결과 170건 처리시간 0.03초

Isolation and Characterization of a Novel Exopolysaccharide-Producing Paenibacillus sp. WN9 KCTC 8951P

  • Seo, Weon-Taek;Kahng, Goon-Gjung;Nam, Sang-Hae;Choi, Sang-Do;Suh, Hyun-Hyo;Kim, Seon-Won;Park, Yong-Ha
    • Journal of Microbiology and Biotechnology
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    • 제9권6호
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    • pp.820-825
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    • 1999
  • A bacterial strain WN9, which produced a new type of extracellular polysaccharide, was isolated from soil samples. By morphological, physiological, biochemical, and phylogenetic studies, strain WN9 was identified as a Paenibacillus sp. and it was named as Paenibacillus sp. WN9, which produced a high molecular extracellular polysaccharide from glucose. The molecular weight of the exopolysaccharide (EPS-WN9) was estimated to be about 31.5 mega-Da. The FT-IR spectrum of EPS-WN9 revealed typical characteristics of polysaccharides. EPS- WN9 consisted of D-glucose and D-mannose with a molar ratio of 1:1.4 being identified as a neutral sugar component. The acidic component of EPS- WN9 was tyrosine. Rheological analysis of EPS- WN9 revealed that the pseudoplastic property and its apparent viscosity remained stable at various temperatures and pHs.

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UV조사 처리한 PET의 역학적 특성변화와 감성평가 (The physiological properties and sensibility of PET irradiated by ultraviolet rays)

  • 최혜영;이정순
    • 한국생활과학회지
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    • 제15권2호
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    • pp.275-281
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    • 2006
  • The purpose of this study is to investigate hand and sensibility of PET treated by Ultra-Violet (UV). The 4-channel PET knit fabric was treated by a self-made UV instrument in 5cm distance with different time frames-0min, 30min, and 90min. For hand evaluation, mechanical properties were measured by the KES-FB system. The environmental condition was controlled at 29$^{\circ}C$, 75% (R.H.)-summer standard climate. Twenty female students evaluated 'roughness', 'smoothness', 'wetness', 'stiffness', 'coolness', 'touch', 'preference', and 'comfort'. The outcomes of the experiment are as follows: The surface roughness of mechanical properties showed significant differences and the value of PET irradiated by UV for 90min was highest. The order of primary hand value such as NUMERI and FUKURAMI was in a following order-Untreated > 30min treated > 90min treated. Total hand value showed that PET irradiated by UV for 90min was appropriate for using summer fabric. The results of subjective sensibility were that the untreated and 30min treated PET were recognized as similar and had a good evaluation on 'comfort', 'preference' and 'the sense of touch'. This consequence disagreed with total hand value, because it was considered that subjects' hand sensibility was dependent on the feel of smoothness.

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A scientific understanding of Mammary gland and physiology of lactation in Ayurveda.

  • Verma, Vandana;Agrawal, Sonam;Gehlot, Sangeeta
    • 셀메드
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    • 제10권1호
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    • pp.4.1-4.4
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    • 2020
  • Ayurveda scholars have well described about the physio-anatomical aspect of mammary gland (Stana), physiology of lactation, importance of breast milk (Stanya) in growth and development of baby, various factors affecting the lactation and causing changes in property of milk, Galactogouge (Stanyajanana), and drugs for purification of mother milk (Stanya Shodhana). The recent studies provide evidence for above descriptions of Ayurveda. Breast milk (Stanya) is the nearly complete sole source of nourishment for infants. It has been considered as subsidiary tissue (Upadhatu) of blood plasma (Rasa Dhatu) as it is formed out of Rasa Dhatu (Plasma) and its quality and quantity gets affected by quality of nutrient fraction of food formed after complete digestion (Aahar Rasa). It provides health (Aarogya), strength and immunity (Bala) to the feeding child and gives innumerable beneficial effects like protection against not only acute infections like URTI, diarrhoea but also on chronic illnesses like CVD, metabolic disorders too. The Ayurveda description related to Mammary gland and physiology of lactation still need a better understanding for its implementation on promotion of health. Thus an attempt has been made to compile and analyze the view of Ayurveda scholars on Breast (Stana), Breast milk (Stanya) and physiological aspect of lactation as well as to draw a possible scientific understanding for the relevance.

Store-operated Ca2+ entry in muscle physiology and diseases

  • Pan, Zui;Brotto, Marco;Ma, Jianjie
    • BMB Reports
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    • 제47권2호
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    • pp.69-79
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    • 2014
  • $Ca^{2+}$ release from intracellular stores and influx from extracellular reservoir regulate a wide range of physiological functions including muscle contraction and rhythmic heartbeat. One of the most ubiquitous pathways involved in controlled $Ca^{2+}$ influx into cells is store-operated $Ca^{2+}$ entry (SOCE), which is activated by the reduction of $Ca^{2+}$ concentration in the lumen of endoplasmic or sarcoplasmic reticulum (ER/SR). Although SOCE is pronounced in non-excitable cells, accumulating evidences highlight its presence and important roles in skeletal muscle and heart. Recent discovery of STIM proteins as ER/SR $Ca^{2+}$ sensors and Orai proteins as $Ca^{2+}$ channel pore forming unit expedited the mechanistic understanding of this pathway. This review focuses on current advances of SOCE components, regulation and physiologic and pathophysiologic roles in muscles. The specific property and the dysfunction of this pathway in muscle diseases, and new directions for future research in this rapidly growing field are discussed.

정제방법에 따른 저온추출 죽력의 특성비교 (Property Comparison of Purified Bambusae Caulis in Liqamen extracted at low temperature)

  • 오영준;김해진;황병길;김선민;장경선;김재창
    • 동의생리병리학회지
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    • 제16권3호
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    • pp.532-536
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    • 2002
  • Jookrhyuk (Bambusae Caulis in Liqamen) was extracted at low temperature (100℃ - 160℃) and purified by adsorption and distillation and their physicochemical properties were compared. In case of colour among all Jookrhyuk samples the L value appeared to be higher in the purified Jookrhyuk,and the b value appeared to be higher in crude Jookrhyuk. Purified Jookrhyuk showed much lower level of total sugar and tar contents than crude Jookrhyuk. A considerable reduction in concentration of methanol and phenolic compounds was achieved by purification process, whereas the content of acetic acid was increased. Therefore it was suggested that adsoption and distillation could be used as one of effective purification methods of various Joockrhyuk samples.

마늘추출물이 운동부하 흰쥐의 심장내 MAPK signaling 활성에 미치는 영향 (Effect of Garlic Extract on the Activation Pattern of MAPK Signaling in the Rat Heart After a Bout Exercise)

  • 이준혁;정경태;이용태;최영현;최병태
    • 동의생리병리학회지
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    • 제22권5호
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    • pp.1299-1303
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    • 2008
  • Since exercise training induces mechanical stress to the heart, we examined the activation pattern of mitogen-activated protein kinase(MAPK)s signaling pathway by immunohistochemistry. The immunoreactions of MAPKs signaling with c-fos and Schiff's reaction were increased in the cardiac muscle of exercised rat compared to normal one except immunoreaction for MEK1/2 and ERK1/2 and p38. However, the immunoreaction of phospho-JNK and phospho-p38 with early gene c-fos were arrested markedly in water extract of Alliium sativum (WEAS) treated rat compared to exercised one. Since MAPKs signaling does play a protective role in response to pathological stimulus in the heart, results in the present study suggest that WEAS may act as a alleviating agent for exercise-induced stress to. heart through regulating MAPKs signaling activation.

Ursodeoxycholic acid의 무정형 초미립자제제들의 CC4 유도 간손상 생쥐에 대한 보호 효과 (Hepatoprotective Effects of Amorphous and Nnno-Particle Pyeparations of Ursodeoxycholic Acid in CC4-Induced Mice : Effects of Three Types of Fine Grinding Mills)

  • 정한영;곽신성;김현일;최우식;이지현;김애라;박태현;정해영;김유정
    • Biomolecules & Therapeutics
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    • 제10권1호
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    • pp.1-6
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    • 2002
  • The particle size of medicinal materials is an Important physical property that affects the phar-maceutical behaviors such as dissolution, chemical stability, and bioavailability of solid dosage forms. The size reduction of raw medicinal powder is needed to formulate insoluble drugs or slightly soluble medicines and to improve the pharmaceutical properties such as the solubility, the pharmaceutical mixing, and the dispersion. The objective of the present study is to evaluate physiological activity of amorphous and nano-particle prep-arations of insoluble drug, ursodeoxycholic acid (UDCA), which were made by three types of fine grinding mills. The change of physical properties of ground UDCA was conformed by Mastersiger microplus and X-ray diffraction. We have investigated hepatoprotective effects of the nano-particle preparations of UDCA by plan-etary mill, vibration rod mill and jet mill in $CCI_4$-induced oxidatively injured mouse liver. The results showed that nano-particle preparations of UDCA all decreased reactive oxygen sepecies generation and lipid peroxi-dation in $CCI_4$-induced oxidative stress mice. Among them, nano-particle preparations by vibration rod mill and jet mill showed more significantly hepatoprotective effects compared to intact UDCA and planetary mill-ground UDCA. These results suggest that ground UDCA with vibration rod mill and jet mill shows a high amorphous state and the improved dissolution.

Functionality and Application of Dietary Fiber in Meat Products

  • Kim, Hyun Jung;Paik, Hyun-Dong
    • 한국축산식품학회지
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    • 제32권6호
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    • pp.695-705
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    • 2012
  • Dietary fiber naturally present in various sources of cereals, legumes, fruits and vegetables plays a physiological role in human health, such as lowering cholesterol and blood pressure, improving blood glucose control in diabetes, helping with weight loss and management, and reducing cancer risk. In addition, dietary fibers have has been added as a functional food ingredient to food products to provide water-holding capacity, viscosity, gel-forming ability, and fat-binding capacity to food products. These beneficial characteristics of dietary fiber components can improve the image of meat products to be healthy and functional food products. This article reviews the concept and current definition of dietary fibers in food products along with their health benefits and functional characteristics. Dietary fibers from different sources like cereals, legumes, fruits, and vegetables and soluble dietary fibers have been applied as functional ingredients to various types of meat products, such as beef patties, ground beef and pork, pork and chicken sausages, meatballs, and jerky etc. Based on the application of dietary fibers to different types of meat products, possible future characteristics in selecting appropriate dietary fiber ingredients and their proper incorporation are explored to develop and produce healthy and functional meat products with high dietary fiber contents.

만성 전립선염 환장의 치험 2예 (Clinical Report of Two Patients with Chronic Prostatitis)

  • 심국진;박형진;조철원;강세영;김홍준;송봉근
    • 동의생리병리학회지
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    • 제18권1호
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    • pp.274-278
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    • 2004
  • The prostatitis is characterized as relatively incurable, chronic and recurrent illness. Because of this property, we have a difficulty in treating this illness. The purpose of this study is evaluating the efficiency of herb medicine, acupuncture, and herbal acupuncture therapy to the prostatitis. A clinical observation was made on two patients with chronic prostatitis who had perineal pain, pubic pain, testicular pain, painful urination, frequency and dysuria. They were treated with herb medicine, acupuncture, and herbal acupuncture therapy for four weeks and symptoms were considerably decreased. This result suggests that oriental medical therapy is useful enough to treat the prostatic diseases. Therefore the further study of the approach and application of this treatment on prostatitis would be necessary.

탈모의 치료에 다용되는 약물에 대한 문헌적 고찰 (Bibliographic Study on Herbal Medicine for Alopecia)

  • 박수곤;조희근;양미성;최진봉;김선종
    • 동의생리병리학회지
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    • 제24권3호
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    • pp.367-372
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    • 2010
  • The purpose of this study is to make a basis of in vivo or clinical study about alopecia. We investigated the prescriptions of alopecia by researching oriental medicine literature. We found the prescriptions used for alopecia. And we surveyed the frequency and classification of the herbs used for alopecia. The results of this study were recorded as follows. The most frequently used single herbs in the prescriptions were Angelicae Gigantis Radix(當歸), Glycyrrhizae Radix(甘草), Poria(茯笭), Paeoniae Radix Alba(白芍藥). Herbs specifically frequently used in the prescriptions of alopecia were as follows. Polygoni Multiflori Radix(何首烏), Rehmanniae Radix(生地黃), Cuscutae Semen(菟絲子), Bupleuri Radix(柴胡), Scutellariae Radix(黃芩), Viticis Fructus(蔓荊子), Aconiti Iateralis Preparata Radix(附子). Herbs frequently used were classified by property. The result was as follows. (()-The number of herbs) 補益藥(32), 解表藥(18), 淸熱藥(15) 收澀藥(9), 活血祛瘀藥(8), 利水滲濕藥(8).