• Title/Summary/Keyword: AK1

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Relationships of Plasma and Very Low Density Lipoprotein Lipids and Subfractions with Abdominal Fat in Chickens

  • Loh, Teck Chwen;Tan, Bee Koon;Foo, Hooi Ling;Norhani, Abdullah;Zulkifli, Idrus
    • Asian-Australasian Journal of Animal Sciences
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    • v.24 no.1
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    • pp.82-87
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    • 2011
  • A study was conducted to determine the relationships between triacylglycerol (TAG) of plasma, very low density lipoprotein (VLDL) and fat deposition in two different breeds of chickens. The VLDL apolipoproteins of both breeds were also characterised. The breeds used were crossbred village chicken (AK) (Sasso crossed) and commercial broiler (CB) (Avian). They were housed in six pens with 30 female and 30 male birds of each breed per pen. Three male and three female birds from each pen were slaughtered and the blood was collected. The VLDL was isolated and sub-fractionated using Fast Protein Liquid Chromatography (FPLC). VLDL TAG of CB was significantly lower than AK. The particle size was negatively correlated with VLDL TAG and positively correlated with abdominal fat. Sub-fraction 2 contained more apo E that will enhance the lipolysis process of the VLDL TAG than subfraction 1. CB had a higher proportion of sub-fraction 2 than AK. The results showed that the proportion of sub-fraction 2 was negatively correlated with VLDL TAG concentration and positively correlated with abdominal fat.

The effects of Korean music Pansori Sugungga on mental health sung by Dong-jin Park

  • Ko, Kyung Ja;Hwang, Sung Yeoun
    • CELLMED
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    • v.7 no.1
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    • pp.5.1-5.3
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    • 2017
  • The purpose of this article is to show that satire through Sugungga is beneficial for the mental health of people. Dong-jin Park is one of the greatest singers of Han Ak (Korean music, 韓樂). He is an authentic singing master through long-term training, which explains why his cheerful voice will certainly allow us to become unburdened. The story of Pansori Sugungga is akin to that of David and Goliath, the art of battling giants but a Korean version. Satire is a technique found in Pansori, Korean epic songs which use humor as a cover for more serious social criticism. Koreans have believed that outbursts of sentiment through satire are good for their mental health. For a long time, these singers have entertained Koreans with political satire and indirect counter-drives. Pansori Sugungga's keen wit and satire have earned the love of Koreans. Koreans want vivid descriptions and surprising turns that end with catharsis through Sugungga and are therefore thrilled with Sugungga. Therefore, Sugungga in Han Ak (Korean music, 韓樂) is a good means of music therapy for better mental health.

Anticancer Activity of Indeno[1,2-b]-Pyridinol Derivative as a New DNA Minor Groove Binding Catalytic Inhibitor of Topoisomerase IIα

  • Jeon, Kyung-Hwa;Shrestha, Aarajana;Jang, Hae Jin;Kim, Jeong-Ahn;Sheen, Naeun;Seo, Minjung;Lee, Eung-Seok;Kwon, Youngjoo
    • Biomolecules & Therapeutics
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    • v.29 no.5
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    • pp.562-570
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    • 2021
  • Topoisomerase IIα has been a representative anti-cancer target for decades thanks to its functional necessity in highly proliferative cancer cells. As type of topoisomerase IIα targeting drugs, topoisomerase II poisons are frequently in clinical usage. However, topoisomerase II poisons result in crucial consequences resulted from mechanistically induced DNA toxicity. For this reason, it is needed to develop catalytic inhibitors of topoisomerase IIα through the alternative mechanism of enzymatic regulation. As a catalytic inhibitor of topoisomerase IIα, AK-I-191 was previously reported for its enzyme inhibitory activity. In this study, we clarified the mechanism of AK-I-191 and conducted various types of spectroscopic and biological evaluations for deeper understanding of its mechanism of action. Conclusively, AK-I-191 represented potent topoisomerase IIα inhibitory activity through binding to minor groove of DNA double helix and showed synergistic effects with tamoxifen in antiproliferative activity.

Characterization of a Peptide Antibody Specific to the Adenylyl Cyclase-Associated Protein of Acanthamoeba castellanii

  • Kim, Min-Jeong;Lee, Hae-Ahm;Quan, Fu-Shi;Kong, Hyun-Hee;Moon, Eun-Kyung
    • Parasites, Hosts and Diseases
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    • v.60 no.1
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    • pp.7-14
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    • 2022
  • Acanthamoeba keratitis (AK) is a rare infectious disease and accurate diagnosis has remained arduous as clinical manifestations of AK were similar to keratitis of viral, bacterial, or fungal origins. In this study, we described the production of a polyclonal peptide antibody against the adenylyl cyclase-associated protein (ACAP) of A. castellanii, and evaluated its differential diagnostic potential. Enzyme-linked immunosorbent assay revealed high titers of A. castellanii-specific IgG and IgA antibodies being present in low dilutions of immunized rabbit serum. Western blot analysis revealed that the ACAP antibody specifically interacted with A. castellanii, while not interacting with human corneal epithelial (HCE) cells and other causes of keratitis such as Fusarium solani, Pseudomonas aeruginosa, and Staphylococcus aureus. Immunocytochemistry (ICC) results confirmed the specific detection of trophozoites and cysts of A. castellanii co-cultured with HCE cells. The ACAP antibody also specifically interacted with the trophozoites and cysts of 5 other Acanthamoeba species. These results indicate that the ACAP antibody of A. castellanii can specifically detect multiple AK-causing members belonging to the genus Acanthamoeba and may be useful for differentially diagnosing Acanthamoeba infections.

Antibiotic Resistance and R Plasmids in Edwardsiella tarda (양만장 사육조에서 분리한 Edwardsiella tarda의 약제 내성과 R Plasmid)

  • Choi, Min-Soon;Kim, Young-Gill
    • Journal of fish pathology
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    • v.7 no.1
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    • pp.37-46
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    • 1994
  • A total 103 strains of Edwardsiella tarda was isolated from eel culture-ponds and examined for drug resistance, distribution and transferabilities of R plasmids. The drugs used were lincomycin(LM), penicillin(PM), sulfamethazine(SF), sulfadimethoxine(SD), cephalosprin(CP), chloramphenicol(CH), streptomycin(SM), oxytetracycline(OT), ampicillin(AP), oxolinic acid(OA), kanamycin(KM), amikacin(AK), gentamicin(GM) and enrofloxacin(EF). Two strains were resistant to the all drugs used, and all isolates were multiply resistant to drugs(at least 8 among 14 drugs), mostly restricted to LM(103 strains), PM(103 strains), SD(103 strains), SF(103 strains), CP(102 strains), CM(101 strains), SM(100 strains), OT(94 strains), AM(92 strains), OA(80 strains), KM(60 strains), AK(30 strains), GM(19 strains) and EF(14 strains), in combination at high degree showing 34 different drug resistant patterns. The most frequently encountered patterns were LM PM SD SF CP CH SM OT AP OA KM(22 strains, 22.4%) followed by LM PM SD SF CP CH SM OT AP OT(12 strains, 11.7%). LM PM SD SF CP CH SM OT AP(7 strains, 6.8%), LM PM SD SF CP CH SM OT AP OA KM AK GM(6 strains, 5.8%) and LM PM SD SF CP CH SM OT AM OX KM AK GM(6 strains, 5.8%). Transfer experiment of drug resistance showed that of 103 resistant strains, 100 strains(97%) transferred part or all resistance to all drugs, indicating that most isolates carried conjugally transferrable R plasmids determining multiple drugs. The most frequently observed transferarble R plasmids were LM PM SD SF CP CH SM OT AP OA(10 strains), LM PM SD SF CP CH SM OT AP OX KM(7 strains) and LM PM SD SF CP CH AP OA(7 strains). These results sugested that eel culture-ponds were highly contaminated with different strains of Edwardsiella tarda, and that contaminated bacteria might be highly multiple resistant strains to drugs, carring transferable R plasmids.

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Slow Development of Diabetic Cataract in Streptozotocin-induced Diabetic Rats via Inhibition of Aldose Reductase Activity and Sorbitol Accumulation by Use of Aster koraiensis Extract (알도즈 환원효소 활성억제와 소비톨 축적 억제로 인한 벌개미취 추출물의 당뇨병성 백내장 발병 지연 효능)

  • Kim, Chan-Sik;Kim, Jung-Hyun;Jeong, Il-Ha;Kim, Young-Sook;Lee, Jun;Jang, Dae-Sik;Kim, Jin-Sook
    • Korean Journal of Pharmacognosy
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    • v.40 no.4
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    • pp.339-344
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    • 2009
  • Diabetic cataract is a major complication of diabetes mellitus. Excess accumulation of sorbitol plays an important role in the pathogenesis of diabetic complications such as cataract formation. In this study, we investigated the inhibitory effect of the extract of the aerial parts of Aster koraiensis (AK) on diabetic cataractogenesis. To examine this further, we evaluated sorbitol accumulation during cataract development using streptozotocin-induced diabetic rat, an animal model of type 1 diabetes. Diabetic rats were treated orally with AK (100 mg/kg and 200 mg/kg body weight) once a day orally for 9 weeks. In vehicle-treated diabetic rats, lens opacity was increased, and lens fiber swelling and membrane rupture were observed. In addition, sorbitol accumulation in diabetic lens was markedly enhanced. However, AK treatment delayed the progression of diabetic cataract through the inhibition of sorbitol accumulation, and prevented lens fiber degeneration in a dose-dependent manner. These observations suggest that AK treatment can delay the progression of lens opacification in the diabetic rats during the early diabetic cataractogenesis.

Protein Engineering of Deoxynucleoside Kinase from Lactobacillus acidophilus: Effect of Site-Directed Mutagenesis on Microbial Growth

  • Park, Inshik;Kim, Eun-Ae;Bang, Keuk-Seung;Kim, Seok-Hwan;Kim, Gi-Nahm;Lee, Min-Kyung;Kil, Ji-Oeun
    • Preventive Nutrition and Food Science
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    • v.6 no.1
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    • pp.79-81
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    • 2001
  • Deoxynucleoside kinases exist as heterodimeric pairs specific for deoxyadenosine/deoxyguanosine kinase (dAK/dGK) and deoxyadenosine/deoxycytidine kinase (dAK/dCK). The aspartic acid-84 in dGK was mutated to alanine, asparagine and glutamic acid by site-directed mutagenesis. The mutation resulted in a drastic decease in dGK activity compared to the unmodified cloned enzyme while it increased production of dAK activity. The mutated dak/dgk genes, which synthesize tandem deoxyadenosine/deoxyguanosine kinase, were inserted back to the Lactobacillus acidophilus and Lactococcus lactis by electroporation to determine the effect of site-directed mutation of he enzymes on the microbial growth. However, no significant change was observed in cell growth and lactic acid production between wild type and mutant lactic acid bacteria.

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