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Carbofuran 입제의 처리방법 및 시기가 벼의 해충과 천적의 밀도에 미치는 영향 (Effect of Density Variation on the Natural Enemies and Rice Pests by Application Method and Time of Carbofuran Granules)

  • 김정부;조동진;하재규;장순덕;박영도
    • 한국응용곤충학회지
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    • 제23권4호
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    • pp.233-236
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    • 1984
  • 본 연구는 경상남도 진주에 위치한 농촌진흥원 해충 시험포장에서 Carbofuran 입제를 본답기에 2회 처리와 농가 관행방제인 살충제 9회 처리간의 벼 해충과 이들 천적의 밀도를 비교 조사하였다. 1. Carbofuran $3\%$ 입제를 기계이앙시 육묘상자 처리와 7월중순 수면 처리등 본답기에 2회만 처리하여도 벼의 주요해충인 멸구 매미충류, 나방류, 굴파리, 총채벌레등의 방제효과가 관행 방제인 살충제 9회 처리와 비등한 경향이었다. 2. 벼 해충의 천적인 거미류와 멸구류의 난기생봉(Anagrus sp.)의 밀도는 Carbofuran 입제 처리가 관행방제보다 2.4배 밀도가 높았다.

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Interactions between Hyaluronic Acid, Lysozyme, Peroxidase, and Glucose Oxidase in Enzymatic Activities at Low pH

  • Kim, Bum-Soo;Kim, Yoon-Young;Chang, Ji-Youn;Kho, Hong-Seop
    • Journal of Oral Medicine and Pain
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    • 제39권4호
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    • pp.127-132
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    • 2014
  • Purpose: Many substances in saliva or oral health care products interact with each other. The aim of this study was to investigate interactions between hyaluronic acid (HA), lysozyme, peroxidase, and glucose oxidase (GO) in enzymatic activities at low pH levels. Methods: HA (0.5 mg/mL), hen egg-white lysozyme (HEWL, $30{\mu}g/mL$), bovine lactoperoxidase (bLPO, $25{\mu}g/mL$), and GO ($50{\mu}g/mL$) were used. The influences of HA, bLPO, and GO on HEWL activity were determined by measuring the turbidity of a Micrococcus lysodeikticus suspension. The influences of HA and HEWL on bLPO activity were determined by the NbsSCN assay, measuring the rate of oxidation of 5-thio-2-nitrobenzoic acid (Nbs) to 5,5'-dithiobis(2-nitrobenzoic acid) $(Nbs)_2$. The influences of HA and HEWL on GO activity were determined by measuring oxidized o-dianisidine production. All experiments were performed at pH 4, 5, and 6. Results: HA and GO did not affect the enzymatic activity of HEWL at pH 4, 5, and 6. bLPO enhanced the enzymatic activity of HEWL at pH 5 (p<0.05) and pH 6 (p<0.05) significantly. The enzymatic activity of bLPO was not affected by HA and HEWL at pH 4, 5, and 6. HA and HEWL did not affect the enzymatic activity of the GO at pH 4, 5, and 6. Conclusions: Peroxidase enhances lysozyme activity at low pH, otherwise there were no significant interactions in enzymatic activities between HA, lysozyme, peroxidase, and GO at low pH levels.

웅담(熊膽) 및 우루소데옥시콜린 산(酸)의 항(抗)알레르기 효과(效果)에 관(關)한 실험적(實驗的) 연구(硏究) (The experimental study on the anti-allergic effects of Ursi fel and Ursodesoxycholic acid (UDCA))

  • 정재환;이진용;김덕곤;정규만
    • 대한한방소아과학회지
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    • 제10권1호
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    • pp.299-321
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    • 1996
  • Experimental studies were done to research the effects of the Ursi fel and the UDCA on the anti-allergic effects. The results were obtained as follows: 1) In the experimental effects of the Ursi fel and the UDCA on the vascular permeability responses to intradermal Serotonin, though both of the Ursi fel and UDCA revealed the significant effect, the Ursi fel had stronger effect than the UDCA. 2) In the provocative effects of the Ursi fel and the UDCA on the vascular permeability responses to intradermal Histamin, though both of the Ursi powfel and UDCA showed the significant effect, the Ursi fel had moreerful effect than the UDCA. 3) In the 48 hours homologous passive cutaneous anaphylaxis provoked by the IgE-like antibody against white egg albumin, though both of the Ursi fel and UDCA revealed significant effect, the Ursi fel had stronger effect than the UDCA. 4) In the delayed type hypersensitivity response to Picryl Chlorede, though both of the Ursi fel and UDCA were proved to be effective significantly the Ursi fel showed stronger effect. 5) In the delayed type hypersensitivity responses to Sheep red blood cell, the Ursi fel revealed the significant effect, though the UDCA has no significant effect. According to above results, the Ursi fel was approved it could be used widely as antiallergic drug for immediate and delayed type allergic diseases. Although the UDCA revealed efficacy in immediated type allergic diseases, it had less powerful effects than the Ursi fel and it showed no effects in some experiment of delayed type allergy, so it would be difficult to be used clinically.

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가미청상보하탕이 Allergy성 기관지천식에 미치는 실험적 연구 (The Effects of Kamichungsangboha-tang on the Respiratory Patterns and Tracheal Tissues in Allergic Asthma)

  • 우영식;김진일;강필구;박동일
    • 동의생리병리학회지
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    • 제16권6호
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    • pp.1217-1222
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    • 2002
  • This study was aimed to find out Kami-Chungsangboha-tang's effects on allergic asthma using Egg-White Implant(EWI) method model recommended by Siqueira et al. Kami-Chungsangboha-tang has widely been prescribed and used in Oriental Medicine for controlling and curing of the symptoms of Asthma(dyspnea, wheezing, cough, sputum, chest discomfort). The Previous studies have demonstrated that Kami-Chungsangboha-tang had analgesic, sedative, anticonvulsive and antihistamine effects. But it was uncertain whether Kami-Chungsangboha-tang could inhibit the allergic reaction, so alleviate the symptoms of allergic asthma. With such aim, the respiratory patterns and eosinophil infiltration in the tracheal mucosa of rats with experimentally induced allergic asthma (using EWI method) were mainly observed. The results are as follows ; 1. Kami-Chungsangboha-tang decreased the number of malformed respiration with respect to control group (p<0.02). 2. Kami-Chungsangboha-tang decreased the number of eosinophils infiltrated in tracheal mucosa with respect to control group (p<0.05). Depending upon above results, it is considered that Kami-Chungsangboha-tang has the inhibitory effects on the process of allergic asthma and suggested that it could be used in relieving patients of the symptoms caused by allergic asthma.

消風散과 加味消風散이 免疫反應 및 抗 알레르기에 미치는 影響 (The Effects of Sopungsan and Gamisopungsan on Immune Response and the Anti-Allergic Reaction to Rats and Mice)

  • 김중호;채병윤
    • 한방안이비인후피부과학회지
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    • 제4권1호
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    • pp.1-22
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    • 1991
  • The object of this research is to find out the clinical effects of Sopungsan and Gamisopungsan on Immune response and the An1i-allergic reaction to rats and mice. The results obtained are as follows: 1. Both sopungsan and Gamisopungsan have a tendency to decrease on the delayed type hypersensitivity response in methotrexate treated mice, but are not recognized as having significance. 2. Both Sopungsan and Gamisopungsan reveal the increasing effects with significance on the hemagglution titer in mice. 3. Gamisopungsan reveals the increasing effect with significance on the hemolysin titer in mice. 4. Both Sopungsan and Gamisopungsan have a tendency to increase on the appearance of Rosette forming cells in mice, but are not recognized as having significance. 5. Both Sopungsan and Gamisopungsan reveal the increasing effects with significance on phagocytic index K and a in mice 6. Sopungsan reveals the decreasing effect, on the homologous passive cutaneous anaphylaxis in rats provoked by the IgE-like antibody aganist egg white albumin. 7. Gamisopungsan reveals the decreasing effect with significance on vascular permeabi1ity response to intradermal histamin in rats. 8. Sopungsan reveals the decreasing effect with significance, on vascular permeability response to intradermal serotonin in rats. 9. Both Sopungsan and Gamisopungsan reveal the decreasing effects with significance on the delayed type hypersensitivity response to picryl chloride in mice. 10. Both Sopungsan and Gamisopungsan reveal the decreasing effects with significance on the delayed type hypersensitivity response to sheep red blood cell in mice. According to the above results, Sopungsan and Gamisopungsan are concluded to have the increasing effect of immunity and anti-allergic reaction.

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Biological Control of Pests of Non-Mulberry Silkworms and Its Host Plants in India

  • Singh, R.N.;Maheshwari, M.
    • International Journal of Industrial Entomology and Biomaterials
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    • 제4권2호
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    • pp.83-91
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    • 2002
  • The protection of silkworm and its host plants from various kinds of pests parasite and predator is a chronic problem in sericulture. Silkworms and its primary food plants are heavily damaged by large number of pest. The major pests of primary tasar food plants (Terminalia arjuna and Terminalia tomentosa) are the gall insect (Trioza fletcheri minor). Various species of aphids (Eutrichosiphum sp.) have been recorded to damage oak tasar food plants whereas muga silkworm host plants (Machilus bombycina and Litsaea polyantha) are generally attacked by stem bores (Zeuzera multistrigata). Castor (Ricinus communis) is one of the primary host plant of eri silkworm and extensive damage is caused by the castor white fly (Trialeurodes ricini). Insects pests are major enemies of silkworms. Parasites (Blepharipa zebina, Exorista bombycis, Apateles glomeratus), predators (Canthecona furcellata, Sycanus collaris, Hierodulla bipapilla), wasps (Vespa orientalix) and ants (Oecophylla smargdina) continues to cause damage to silk industry. It is estimated that the losses due to parasites and predators are to an extent of 15-20 percent and varies from crop to crop. The complexities in the behaviour and life cycle of pest population existing in semi ecosystem warrant a special attention for their effective management specially in changing scenario for our modern sericulture. Though use of synthetic insecticides has provided us with effective control of almost all major pests and predators, yet their undesirable side effects limit their continued use. Biological control is one of the most important method which can be used to control the pests, parasites and predators population in sericulture. Various potential parasitoids, which can be utilized as an agent of biological control in sericulture have been screened. The natural enemies of the uzi fly (E. bombycis and B. zebina ) are already present in the nature. Nesolynx thymus, Trichria sp., Splangia endius, Dirhinus sp., Trichopria sp., Trichomalopsis apanteloctena and Pediobius sp. are the major parasitoids effective against uzi fly pupa. The scelionid Psix striaticeps and Trissolcus sp. are the Potential egg Parasitoids against stink bug (Canthecona furcellata). Various other native natural potential parasitoids have been screened and suitable strategies have been developed to check the population of pest insect in sericulture.

뽕나무에서 추출한 단백질 분해호소의 특성 (The Properties of Proteolytic Enzymes from the Mulberry (Morus alba L.))

  • 윤숙자;오성훈;장명숙
    • 한국식품조리과학회지
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    • 제13권5호
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    • pp.623-626
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    • 1997
  • 뽕나무는 옛날 가정에서 질긴 쇠고기를 조리할 때 사용하였다고 하였는데, 실제로 육류 조리에의 이용 가능성을 모색하기 위하여 우선 뽕나무 줄기의 속껍질에서 추출한 단백질 분해효소의 활성 및 특성을 알아 본 결과는 다음과 같다. 시료 2,800 g으로부터 조효소 분말 2.25 g을 회수하였는데, 회수율은 0.08% (wet basis)이었다. 뽕나무에서 추출한 단백질 분해효소 활성은 2,358 unit/g을 나타내었다. 효소의 특성 중 기질 특이성은 다른 단백질 기질에 대한 뽕나무에서 추출한 조효소의 효소활성을 조사해 본 결과 casein 100에 대하여 hemoglobin 44, collagen 34, egg white 20, gelatin 13의 비율로 가수분해하는 것으로 나타났다. 이 결과 뽕나무에서 추출한 조효소의 기질 특이성은 육류에 주로 함유된 단백질인 hemoglobin과 collagen을 비교적 잘 가수분해하는 것으로 나타났다. 뽕나무에서 추출한 조효소의 활성 온도는 30~6$0^{\circ}C$였고, 최적온도는 5$0^{\circ}C$로 나타났으며, 7$0^{\circ}C$ 이상의 온도에서는 그 활성이 급격히 감소하였다. 또한 pH를 달리한 역가 실험은 pH 5.0~7.0에서 안정하였고, 최적 pH는 6.0으로 관찰되어졌으며 8.0이상의 pH에서는 그 활성이 급격히 떨어졌다. 또한 뽕나무에서 추출한 조효소의 단백질 함량은 7.2%였고, specific activity는 32.75 unit/mg이었다.

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Ovalbumin Hydrolysates Inhibit Nitric Oxide Production in LPS-induced RAW 264.7 Macrophages

  • Kim, Hyun Suk;Lee, Jae Hoon;Moon, Sun Hee;Ahn, Dong Uk;Paik, Hyun-Dong
    • 한국축산식품학회지
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    • 제40권2호
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    • pp.274-285
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    • 2020
  • In this study, ovalbumin (OVA) hydrolysates were prepared using various proteolytic enzymes and the anti-inflammatory activities of the hydrolysates were determined. Also, the potential application of OVA as a functional food material was discussed. The effect of OVA hydrolysates on the inhibition of nitric oxide (NO) production was evaluated via the Griess reaction, and their effects on the expression of inducible NO synthase (inducible nitric oxide synthase, iNOS) were assessed using the quantitative real-time PCR and Western blotting. To determine the mechanism by which OVA hydrolysates activate macrophages, pathways associated with the mitogen-activated protein kinase (MAPK) signaling were evaluated. When the OVA hydrolysates were added to RAW 264.7 cells without lipopolysaccharide (LPS) stimulation, they did not affect the production of NO. However, both the OVA-Protex 6L hydrolysate (OHPT) and OVA-trypsin hydrolysate (OHT) inhibited NO production dose-dependently in LPS-stimulated RAW 264.7 cells. Especially, OHT showed a strong NO-inhibitory activity (62.35% at 2 mg/mL) and suppressed iNOS production and the mRNA expression for iNOS (p<0.05). Also, OHT treatment decreased the phosphorylation levels of Jun amino-terminal kinases (JNK) and extracellular signal-regulated kinases (ERK) in the MAPK signaling pathway. These findings suggested that OVA hydrolysates could be used as an anti-inflammatory agent that prevent the overproduction of NO.

The Role of Immunostimulants in Monogastric Animal and Fish - Review -

  • Sohn, K.S.;Kim, M.K.;Kim, J.D.;Han, In K.
    • Asian-Australasian Journal of Animal Sciences
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    • 제13권8호
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    • pp.1178-1187
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    • 2000
  • Many immunostimulating substances have been developed to improve immunity of domestic animals, although their exact mode of action and effects are not clearly defined, and they are now widely used in feed industry. Bacterial lipopolysaccharides, called endotoxin, in particular may have a profound effect not only on the immune system but also on macrophages of the reticuloendothelial system. Glucans from a variety of yeast cell wall have been shown to stimulate both specific and non-specific immune responses and to increase growth performance in pigs. Recently, there has been great interest in the role of complex carbohydrates in disease prevention and treatment. Mannanoligosaccharide is a glucomannoprotein complex derived from the cell wall of yeast. Generally, it was also known that the deficiencies of some major vitamins (vitamin A, E and C) and minerals (chromium and selenium) lead to impaired immune system and, as a result, immune function is depressed and recovery delayed. On the other hand, many researchers suggested that one possible reason for the superior performance observed in pigs fed plasma protein may be because of the presence of biologically active plasma proteins (e.g., immunoglobulins) which are known to contribute to the health of the starter pig. And, immunoglobulins present in plasma protein have been implicated as contributing to the overall immunocompetence of the newborn pig. Other immunostimulants, lactoferrin and lysozyme, mainly found in milk and egg white, have been known as having bacteriocidal and bacteriolytic effect. When considering practical use of immunostimulants, the concept of using immunostimulants is new to many people and, in most cases, it is poorly understood how and why such compounds act, and how they should be used in practice. Therefore, in order to clarify the reason for discrepancies in results, special attention should be paid to the dose/response relationship of immunostimulants and the duration of the effect.

The Yield and Composition of Milk from Transgenic Rabbits

  • Chrenek, P.;Chrastinova, L.;Kirchnerova, K.;Makarevich, A.V.;Foltys, V.
    • Asian-Australasian Journal of Animal Sciences
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    • 제20권4호
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    • pp.482-486
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    • 2007
  • Basic objective of this research was to compare the milk yield and composition of New Zealand White transgenic rabbit females expressing recombinant human factor VIII (hFVIII) in mammary gland during lactation with that of non-transgenic rabbit females of the same age during 30 days of lactation. Transgenic founders were generated by the microinjection of foreign DNA (mWAP-hFVIII gene construct) into the egg. F1, F2 and F3 generations of transgenic rabbits were obtained after mating of transgenic founder rabbits with non-transgenic rabbits. The amount of milk rejected was measured by weight-suckle-weight method at $10^{th}$, $20^{th}$and $30^{th}$ day of lactation. Quality of milk (content of fat, protein, lactose, dry ash, and some minerals) from transgenic and non-transgenic rabbit was also determined. Comparison of milk yield, determined by weight-suckle-weight method, showed significantly higher (p<0.05) milk production at day 20 of first lactation in non-transgenic females, but on the same day of second lactation higher milk yield was measured in transgenic ones. Significantly higher (p<0.05) content of milk fat and protein was determined in transgenic milk whilst higher content of lactose was found in non-transgenic milk. The content of minerals (calcium, phosphorus, magnesium and sodium) did not differ in both experimental and control groups. Our results showed that milk yield and composition of transgenic rabbit females (mammary specific transgenic over-expression of hFVIII) over several generations is only slightly and transiently different from milk yield of non-transgenic females, which had no significant consequence on the litter size and viability.