• Title/Summary/Keyword: neutralizing effect

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The Studies on Antiulcer effect of Herbal medicines against experimental gastric ulcer (실험적 위궤양 모델에 대한 천연물질의 항궤양 효과에 관한 연구)

  • Kang, Min-Hee;Tae, In-Whan;Cho, Seong-Wan
    • Proceedings of the KAIS Fall Conference
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    • 2009.05a
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    • pp.607-611
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    • 2009
  • Stomach ulcer is the sickness with high frequency of occurrence at the digestive organs and is usually induced by a disproportion of an aggressive factor and a defense factor. To find the medicines having comparative effect to $Stillen^{(R)}$ currently on sale, we screened SHI-7004 and carried out following experiments; Effects of HCl-EtOH induced gastric lesions measuring test, Acid-Neutralizing Capacity, DPPH antioxidation activity, effect of stomach glands secrection. We can suggest that this herbal medicines could be a promising drug for the treatment of gastrc ulcers.

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Study on Bleaching Effect of Neutralization Agent (Sodium Meta Silicate and Triethylamine) Regarding Its Concentration - Focused on 10% Urea Hydrogen Peroxide Bleaching Gel - (도자기 표면 변색에 대한 중화제(Sodium Meta Silicate 및 Triethylamine)의 농도별 표백 효과 - 10% 과산화요소 표백겔을 중심으로 -)

  • Ham, Chul Hee
    • Korean Journal of Heritage: History & Science
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    • v.44 no.4
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    • pp.130-141
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    • 2011
  • This paper examined the bleaching effect of the two types of gel made with neutralizing agent such as sodium meta silicate gel & triethylamine gel mixed with carbopol resin 940 & 934 which has thickness effect in broad pH region and mixed with 10% hydrogen peroxide. Sodium meta silicate gel(1.6g included) provided pH 10, the most suitable environment for bleaching. The result of comparison of the baseline colour changes(${\Delta}E*ab$) and colour changes according to time(${\Delta}E*ab$) is as following. Group1(carbopol 940, sodium meta silicate, Urea Hydrogen Peroxide) showed 112% efficiency at CS-2; 63.3% at CS-4; 87.4% at CS-6. Group2(carbopol 934, sodium meta silicate, Urea Hydrogen Peroxide) showed 77.3%, 67.3%, 109.6% at CS-8, CS-10, CS-12 respectively; CT-1, CT-3, CT-5 of Group3(carbopol 940, triethylamine, Urea Hydrogen Peroxide) showed 36.8%, 73.2%, 74%; In Group4(carbopol 934, triethylamine, Urea Hydrogen Peroxide), efficiency of CT-6, CT-8, and CT-10 was 81.7%, 95.4%, and 95.7%. The paper showed that various concentration of neutralizing agent such as sodium meta silicate and triethylamine have bleaching effect. Viscosity of the gel including sodium meta silicate was higher than the gel including triethylamine. High viscosity helps the bleaching gel sit on the smooth slope of the ceramics. As a result, sodium meta silicate is considered to provide thickening and bleaching effect required in producing 10% hydrogen peroxide gel.

Anti-gastritic Effects of Magnolol and Honokiol from the Stem Bark of Magnolia obovata

  • Cho, So-Yean;Lee, Je-Hyuk;Bae, Ki-Hwan;Kim, Yeong-Shik;Jeong, Choon-Sik
    • Biomolecules & Therapeutics
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    • v.16 no.3
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    • pp.270-276
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    • 2008
  • In this study we investigated the effects of Magnolia Bark (MB) extract and its constituents, such as honokiol and magnolol, on gastritis in rats and the growth of human gastric cancer cells. The MB extract, honokiol, and magnolol showed the acid-neutralizing capacities, the antioxidant activities, and the inhibitory effect on the growth of Helicobacter pylori (H. pylori.) at the dose of $50\;{\mu}g/ml$ and over, which is equivalent to that of ampicillin ($100\;{\mu}g/ml$). Honokiol and magnolol had no significant cytotoxicity to human gastric caner cells (AGS and SNU638). However, the MB extract had cytotoxic activity against AGS gastric cancer cell. The MB extract, honokiol, and magnolol significantly inhibited HCI-ethanol-induced gastric lesions without clear change of mucus content. In pylorus ligated rats, honokiol significantly decreased the volume of gastric secretion and gastric acid output, and increased the pH. Magnolol increased the mucus content to almost the same as the control group at oral doses of 50 mg/kg. Therefore, we could guess that antigastritic action of honokiol and magnolol may be associated with the antioxidant activities, acid-neutralizing capacities, inhibition of secretion in gastric acid, and anti-H. pylori action. From these results, we could suggest that MB extract and its constituents, such as honokiol and magnolol, may be useful for the treatment and/or protection of gastritis.

NF-${\kappa}B$ Inhibitor Suppresses Hypoxia-induced Apoptosis of Mouse Pancreatic ${\beta}$-cell Line MIN6

  • Koh, Hyun Sook;Kim, Jae Young
    • Biomedical Science Letters
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    • v.20 no.1
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    • pp.14-24
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    • 2014
  • Hypoxia is one of the main reasons for islet apoptosis after transplantation as well as during isolation. In this study, we attempted to determine the potential usefulness of NF-${\kappa}B$ inhibitor for suppression of hypoxia-induced ${\beta}$-cell apoptosis as well as the relationship between IP-10 induction and ${\beta}$-cell apoptosis in hypoxia. To accomplish this, we cultured the mouse pancreatic ${\beta}$-cell line MIN6 in hypoxia (1% $O_2$). Among several examined chemokines, only IP-10 mRNA expression was induced under hypoxia, and this induced IP-10 expression was due to NF-${\kappa}B$ activity. Since a previous study suggested that IP-10 mediates ${\beta}$-cell apoptosis, we measured hypoxia-induced IP-10 protein and examined the effect of anti-IP-10 neutralizing Ab on hypoxia-induced ${\beta}$-cell apoptosis. However, IP-10 protein was not detected, and anti-IP-10 neutralizing Ab did not rescue hypoxia-induced MIN6 apoptosis, indicating that there is no relationship between hypoxia-induced IP-10 mRNA expression and hypoxia-induced ${\beta}$-cell apoptosis. Since it was still not clear if NF-${\kappa}B$ functions as an apoptotic or anti-apoptotic mediator in hypoxia-induced ${\beta}$-cell apoptosis, we examined possible involvement of NF-${\kappa}B$ in hypoxia-induced ${\beta}$-cell apoptosis. Treatment with 1 ${\mu}M$ NF-${\kappa}B$ inhibitor suppressed hypoxiainduced apoptosis by more than 50%, while 10 ${\mu}M$ AP-1 or 4 ${\mu}M$ NF-AT inhibitor did not, indicating involvement of NF-${\kappa}B$ in hypoxia-induced ${\beta}$-cell apoptosis. Overall, these results suggest that IP-10 is not involved in hypoxia-induced ${\beta}$-cell apoptosis, and that NF-${\kappa}B$ inhibitor can be useful for ameliorating hypoxia-induced ${\beta}$-cell apoptosis.

Acupuncture Therapeutics for the Treatment of the Watery Diarrhea in Calves (송아지의 수양성 설사증에 대한 침술효과)

  • Choi Hee-in;Lee Kyung-kap;Yun Young-min;Park Seong-jun;Chang Jeong-ho
    • Journal of Veterinary Clinics
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    • v.11 no.2
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    • pp.585-592
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    • 1994
  • A consecutive Jiao Chio acupuncture therapy was performed for 3 days in the 45-90 days old 11 calves of which have been shown severe watery diarrhea. The discharge of the infected calves was yellowish brown in color. Two calves of these patients were infected wi pulmonary disease as well as diarrhea. Thus, Su Qi and Fei Yu acupuncture therapy was carried out additionally after dosing with antibiotics twice for The two infected calves. Blood chemical values and serum neutralizing antibody titers were checked, and total blood cell count was also carried out to know the therapeutic effect before and after(21 days) acupuncture therapeutics. The results are as follows ; 1, The diarrhea has ceased one day after begining of the acupuncture therapy in 5 calves, and the cessation of the diarrhea in remaining calves occurred in 1 calf each on 3rd and 4th day, and 2 calves on 6th day, respectively. Two calves infected with pulmonary disease as well diarrhea were cured 8 days after the begining of the therapcutics. 2. Rotaviruses wire detected in the feces of 2 calves, and bovine diarrhea viruses were detected in the 8 calves by the test for serum neutralizing antibody titers, and bovine coronaviruses were also detected in 5 calves. Four calves of the 5 bovine coronavirus infected calves were also infected with bovine diarrhea viruses. 3. Total leucocyte number, total amount of serum protein, and amount of fibringen were slightly increased, while total erythrocyte number, and erythrocyte packed cell volume were slightly decreased. These valucs were statistically not significant. Electrolytes of Na/sup +/, K/sup +/ and Cl/sup -/ were slightly decreased but these values also were not significant. These results indicate that the acupuncture therapeutics arc significantly effective to remove the viral diarrhea in the young calves.

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Influence of Physicochemical Characteristic of Donghae-Samcheok Limestones on the Performance of Flue Gas Desulfurization (FGD) (동해-삼척지역 석회석의 물리화학적 특성이 탈황성능에 미치는 영향)

  • Seo, Jun-Hyung;Baek, Chul-Seoung;Kwon, Woo-Tech;Cho, Kye-Hong;Ahn, Ji-Whan
    • Resources Recycling
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    • v.24 no.6
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    • pp.38-44
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    • 2015
  • It studies that effect of limestone of physicochemical characteristic on the performance of flue gas desulfurization (FGD) and application examination for technology of wet type FGD process and to utilize the limestone in Donghae-Samcheok. The experiment method was measured total neutralizing capability (TNC) using the lab scale experimental apparatus based on the HCl titration test. The results of TNC of limestone samples were more dependent on the physical characteristics including particle size rather than chemical compositions such as CaO content and particle size of limestone get smaller, TNC is increased.

Detection of immunity in sheep following anti-rabies vaccination

  • Hasanthi Rathnadiwakara;Mangala Gunatilake;Florence Cliquet;Marine Wasniewski;Mayuri Thammitiyagodage;Ramani Karunakaran;Jean-Christophe Thibault;Mohamed Ijas
    • Clinical and Experimental Vaccine Research
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    • v.12 no.2
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    • pp.97-106
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    • 2023
  • Purpose: Rabies is a fatal but preventable disease with proper pre-exposure anti-rabies vaccination (ARV). Dogs, as household pets and strays, are the reservoir and vector of the disease, and dog bites have been associated with human rabies cases in Sri Lanka over the past few years. However, other susceptible species having frequent contact with humans may be a source of infection. One such species is sheep and immunity following ARV has never been tested in sheep reared in Sri Lanka. Materials and Methods: We have tested serum samples from sheep reared in the Animal Centre, Medical Research Institute of Sri Lanka for the presence of anti-rabies antibodies following ARV. Sheep serum samples were tested with Bio-Pro Rabies enzyme-linked immunosorbent assay (ELISA) antibody kits used for the first time in Sri Lanka and our results were verified by a seroneutralization method on cells (fluorescent antibody virus neutralization, FAVN test) currently recommended by World Organization for Animal Health and World Health Organization. Results: Sheep received annual ARV and maintained high neutralizing antibody titers in their serum. No maternal antibodies were detected in lamb around 6 months of age. Agreement between the ELISA and FAVN test, i.e., coefficient concordance was 83.87%. Conclusion: Annual vaccination in sheep has an effect on maintaining adequate protection against rabies by measurements of anti-rabies antibody response. Lambs need to be vaccinated earlier than 6 months of age to achieve protective levels of neutralizing antibodies in their serum. Introducing this ELISA in Sri Lanka will be a good opportunity to determine the level of anti-rabies antibodies in animal serum samples.

Studies on the Factors Influencing the Growth of Swine Testicle Cells and the END Effect of Hog Cholera Virus (우혈청(牛血淸)(분획(分劃))의 돈정소세포(豚精巢細胞) 발육(發育)과 돈(豚)콜레라 바이러스 END효과(效果)에 미치는 인자(因子)에 관한 연구(硏究))

  • Jeon, Yun-seong
    • Korean Journal of Veterinary Research
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    • v.26 no.2
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    • pp.265-276
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    • 1986
  • The bovine serum factor influencing the growth of swine testicle (ST) cell and the END effect of hog cholera SN test was studied. Throughout the experimental studies. following results were obtained and summarized. 1. Bovine whole serum of 16(76.2%) and 4(19.0%) samples out of 21 have shown a positive ST cell growth and the END effect, respectively. However, all of 21(100%) and 8(38.1%) samples out of 21 serum supernatant fractions, prepared from the bovine whole serum, have shown positive ST cell growth and END effect, respectively. 2. In the SDS-polyacrylamide gel electrophoretic analysis of the bovine whole serum and the supernatant fractions, ST cell growth inhibiting factor was proved present in globulin fraction and in whole gel plate as a diffusible component. 3. The END ineffective component present in the whole serum and its supernatant fraction was proved to be BVDV neutralizing antibody. 4. The difference of osmolarity, optical density, pH, degree of precipitant formation following heat cold treatment, A/G ratio as we11 as electrophoretic pattern and NDV SN index of the samples were not correlated to the degree of 57 cell growth and to the END effectiveness.

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Edge-Integrity and the Syllable Structure in Korean

  • Kang, Eun-Yeong
    • Proceedings of the Korean Society for Language and Information Conference
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    • 2002.02a
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    • pp.135-146
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    • 2002
  • The so-called overapplication of Coda Neutralization in Korean, the occurrence of a neutralized consonant in a non-neutralizing environment, is often considered as evidence for serial derivation. In this paper I propose that the neutralization effect at surface is not a result of a phonological process at an intermediate level in serial derivation, but due to a constraint requiring the integrity of the morphological constituent: EDGE-INTEGRITY. It is argued that this is not reducible to an alignment constraint, but a genuine faithfulness constraint on the edge of a morphological constituent. The putative opacity related with the coda neutralization is shown to be an epiphenomenon arising from the ambisyllabic representation of a consonant at a morphological juncture, satisfying both EDGE-INTEGRITY arid Syllabic Conditions. Consonant Copy in the Jeju dialect provides further evidence for EDGE-INTEGRITY, the Only difference being that the conflict between Syllabic Conditions and EDGE-INTEGRITY is resolved by insertion of a copied consonant.

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The Effect of Reaction Conditions on the Conversion of Synthesis of 1-Amino-4-(3'-Acetaminoanilino) Anthraquinone-2-Sulfonic Acid (1-Amino-4-(3'-Acetaminoanilino) Anthraquinone-2-Sulfonic Acid 합성의 전화율에 미치는 반응조건의 영향)

  • 천재기;구수진
    • Journal of the Korean Graphic Arts Communication Society
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    • v.16 no.3
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    • pp.133-146
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    • 1998
  • The conversion of 1-Amino-4-(3'-Acetaminoanilino) Anthraquinone-2-Sulfonic Acid prepared by the Ullmann condensation have been investigated as a function of the reaction conditions such as catalysts, initial concentration of reactants, reaction temperature, pH, condensation agents and neutralizing agents. The experimental results showed that the Cu(I)-type catalysts had higher activity than the Cu(II)-type catalysts in this study. The conversion increased with increasing initial concentration of reactants but decreased at above critical concentration owing to agglomeration of reactants. It was also observed that the maximum conversion obtained at 7$0^{\circ}C$ and pH=7~8.

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