• 제목/요약/키워드: 5-amino salicylic acid

검색결과 12건 처리시간 0.019초

Molecular interaction between a reduced riboflavin derivative and salicylic acid derivatives

  • Yu, Byung-Sul;Sohn, Dong-Hwan;Sohn, Dong-Hwan
    • Archives of Pharmacal Research
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    • 제8권3호
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    • pp.99-107
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    • 1985
  • The interaction of reduced riboflavin 2', 3', 4', 5'-tetrabutyrate with salicylic acid, aspirin, and salicylamide has been spectroscopically investigated to determine the binding mechanism. Hydrogen-1 and carbon-13 unclear magnetic resonance, infrared, and absoption spectra were measured in chloform-d and chloroform. The association of the reduced riboflavin with salicylic acid derivatives is different from that osidizd one. Salicylic acid and the reduced riboflavin form a cyclic hydrogen bounded complex through the imino (3-N, 5-N) protons and the carbonyl (2-C, 4-C) oxygens of the isolloxazine ring of the latter, and the carboxylic hydroxyl proton and carbonyl oxygen of the former. Aspirin and the reduced riboflavin form a complex by the same mode as salicylic acid. Salicylamide forms a cyclic hydrogen bonded complex with the reduced riboflavin through the imino (3-N, 5-N) protons and the carbonyl (2-C, 4-C) oxygens of the isoalloxazine ring, and the amino proton and the carbonyl oxygen of salic aylmide. It appears that both the oxidized and reduced form of riboflavin are associated with salicylic acid derivatives.

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Hyaluronic Acid Increases Anti-Inflammatory Efficacy of Rectal 5-Amino Salicylic Acid Administration in a Murine Colitis Model

  • Jhundoo, Henusha D.;Siefen, Tobias;Liang, Alfred;Schmidt, Christoph;Lokhnauth, John;Moulari, Brice;Beduneau, Arnaud;Pellequer, Yann;Larsen, Crilles Casper;Lamprecht, Alf
    • Biomolecules & Therapeutics
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    • 제29권5호
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    • pp.536-544
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    • 2021
  • 5-amino salicylic acid (5-ASA) is a standard therapy for the treatment of mild to moderate forms of inflammatory bowel diseases (IBD) whereas more severe forms involve the use of steroids and immunosuppressive drugs. Hyaluronic acid (HA) is a naturally occurring non-sulfated glycosaminoglycan that has shown epithelium protective effects in experimental colitis recently. In this study, both 5-ASA (30 mg/kg) and HA (15 mg/kg or 30 mg/kg) were administered rectally and investigated for their potential complementary therapeutic effects in moderate or severe murine colitis models. Intrarectal treatment of moderate and severe colitis with 5-ASA alone or HA alone at a dose of 30 mg/kg led to a significant decrease in clinical activity and histology scores, myeloperoxidase activity (MPO), TNF-α, IL-6 and IL-1β in colitis mice compared to untreated animals. The combination of HA (30 mg/kg) and 5-ASA in severe colitis led to a significant improvement of colitis compared to 5-ASA alone. Combined rectal therapy with HA and 5-ASA could be a treatment alternative for severe cases of IBD as it was the only treatment tested that was not significantly different from the healthy control group. This study further underlines the benefit of searching for yet unexplored drug combinations that show therapeutic potential in IBD without the need of designing completely new drug entities.

장뇌삼 부위별 기능성 성분분석과 항산화활성 (Antioxidant Activity and Functional Component Analysis of Korean Mountain Ginseng's Different Sections)

  • 김준한;김종국
    • 한국식품영양과학회지
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    • 제35권10호
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    • pp.1315-1321
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    • 2006
  • 장뇌삼 부위별로 용매를 달리하여 추출한 추출물의 기능성 성분분석과 항산화활성을 측정하였다. 장뇌삼 부위별 추출물의 주요 유리아미노산으로는 arginine, proline, $\gamma-amino-n-butyric$ acid, alanine 및 aspartic acid가 매우 높은 함량을 보였으며, 특히 proline은 씨앗의 80% 메탄을 추출물에 22.98 mg/g으로 가장 높은 함량을 보였으며, 또한 $\gamma-amino-n-butyric$ acid와 alanine은 잎의 80% 메탄을 추출물에 각각 26.04 mg/g과 13.07 mg/g으로 가장 높은 함량을, aspartic acid는 잎의 80% 메탄을 추출물에 23.42 mg/g으로 가장 높은 함량을 함유하고 있었다. 주요 지방산으로는 palmitic acid, oleic acid, linoleic acid가 매우 높은 함량을 보였다. 총페놀 함량든 씨앗의 80% 에탄올 추출물에 737 mg% 이었고, 씨앗의 80% 메탄올 추출물에 560 mg%의 함량을 함유하였다. 주요 페놀산으로는 ferulic acid, salicylic acid, caffeic acid 및 $\rho-coumaric$ acid 등으로 확인되었다. Ferulic acid는 잎의 80% 메탄올 추출물에 $875{\mu}g/g$으로 가장 많았고, salicylic acid는 잎의 80% 메탄을 추출물에 $78{\mu}g/g$의로 가장 많았고, caffeic acid는 잎의 80% 에탄을 추출물에 $50{\mu}g/g$으로 가장 많았으며, $\rho-coumaric$ acid는 줄기의 80% 메탄을 추출물에 $181{\mu}g/g$으로 가장 많은 함량을 나타내었다. 사포닌 조성으로 Rg1 함량은 잎의 80% 메탄올 추출물에 $44.15{\mu}g/g$이었고, Re 함량은 잎의 80% 메탄올 추출물에 $48.78{\mu}g/g$으로 가장 많았으며, Rd 함량은 잎의 80% 메탄올 추출물에 $25.57{\mu}g/g$으로 가장 많았고, Rc 함량은 잎의 80% 메탄을 추출물에 $4.87{\mu}g/g$으로 가장 많았다. 항산화활성은 잎의 물 추출물이 83.82%이었으며, 잎의 80% 에탄올 추출물이 89.74%이었으며, 잎의 80% 메탄을 추출물이 88.37%의 활성을 나타내었다.

유기산성약물이 푸로세미드의 흡수, 배설및 이뇨효과에 미치는 영향 (The Effects of Organic Acidic Drugs on the Absorption, Excretion and Diuretic Action of Furosemide)

  • 염윤희;용재익
    • 약학회지
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    • 제31권5호
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    • pp.273-279
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    • 1987
  • The effects of organic acidic drugs on the absorption, excretion and diuretic action of furosemide were studied. Cefalexin, p-aminohippuric acid (PAH), ibuprofen and p-amino salicylic acid (PAS) were selected as organic acidic drugs. The in situ absorption rate and absorption rate constant of furosemide (30$\mu{M}$) were significantly (p<0.05) decreased by 30$\mu{M}$ of cefalexin, PAH, ibuprofen and PAS in rat small intestine. The plasma concentration of furosemide was significantly (p<0.01) increased by cefalexin, PAH and ibuprofen in rabbits. But the urinary excretion rate, renal clearance and diuretic action of furosemide were significantly (p<0.05) decreased by cefalexin, PAH, ibuprofen and PAS in rabbits.

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Differential expression and in situ localization of a pepper defensin (CADEFl) gene in response to pathogen infection, abiotic elicitors and environmental stresses in Capsium annuum

  • Do, Hyun-Mee;Lee, Sung-Chul;Jung, Ho-Won;Hwang, Byung-Kook
    • 한국식물병리학회:학술대회논문집
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    • 한국식물병리학회 2003년도 정기총회 및 추계학술발표회
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    • pp.78.2-79
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    • 2003
  • Pepper defensin ( CADEFl) clone was isolated from cDNA library constructed from pepper leaves infected with avirulent strain Bv5-4a of Xanthomonu campestris pv. vesicatoria. The deduced amino acid sequence of CADEFl is 82-64% identical to that of other plant defensins. Putative protein encoded by CADEFl gene consists of 78 amino acids and 8 conserved cysteine residues to form four structure-stabilizing disulfide bridges. Transcription of the CADEF1 gene was earlier and stronger induced by X campestris pv. vesicatoria infection in the incompatible than in the compatible interaction. CADEF1 mRNA was constitutively expressed in stem, root and green fruit of pepper. Transcripts of CADEFl gene drastically accumulated in pepper leaf tissues treated With Salicylic acid (SA), methyl jasmonate (MeJA), abscisic acid (ABA), hydrogen Peroxide (H$_2$O$_2$), benzothiadiazole (BTH) and DL-${\beta}$-amino-n-butyric acid (BABA). In situ hybridization results revealed that CADEF1 mRNA was localized in the phloem areas of vascular bundles in leaf tissues treated with exogenous SA, MeJA and ABA. Strong accumulation of CADEF1 mRNA occurred in pepper leaves in response to wounding, high salinity and drought stress. These results suggest that bacterial pathogen infection, abiotic elicitors and some environmental stresses may play a significant role in signal transduction pathway for CADEF1 gene expression.

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산국의 수량, 무기물 및 유효성분에 미치는 ABA와 SA의 효과 (Effect of ABA and Salicylic Acid on Yields, Mineral Contents and Active Components of Chrysanthemum boreale M.)

  • 이경동;;양민석
    • 한국약용작물학회지
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    • 제12권6호
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    • pp.508-514
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    • 2004
  • 우수한 자생식물자원인 산국의 수량과 유효성분을 높이기 위해 식물생장조절제 ABA와 SA를 처리한 결과를 요약하면 다음과 같다. 1. 꽃의 건물수량은 ABA, SA과 ABA+SA 처리구에서 무처리구보다 증가되었으며, ABA 처리구보다는 SA 처리구가 증수되었다. 2. 무기성분의 함량변화는 SA 처리구가 다른 처리구들에 비하여 질소, 인산, 마그네슘의 함량이 증가하였으나 칼륨의 흡수는 오히려 감소하였다. 3. 아미노산함량은 SA 처리구와 ABA+SA 처리구는 ABA 처리구보다 높았다. 4. 생장조절제처리는 정유함량을 증가시켰으며, 그 반응은 monoterpenoid계 화합물보다는 sesquiterpennoid계 화합물에서 더 민감하였다. 5. Cumambrin A의 함량은 ABA 처리구에서 증가하였고, SA 처리구에서는 차이가 없었다.

A novel WD40 protein, BnSWD1, is involved in salt stress in Brassica napus

  • Lee, Sang-Hun;Lee, Jun-Hee;Paek, Kyung-Hee;Kwon, Suk-Yoon;Cho, Hye-Sun;Kim, Shin-Je;Park, Jeong-Mee
    • Plant Biotechnology Reports
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    • 제4권2호
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    • pp.165-172
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    • 2010
  • Genes that are expressed early in specific response to high salinity conditions were isolated from rapeseed plant (Brassica napus L.) using an mRNA differential display method. Five PCR fragments (DD1.5) were isolated that were induced by, but showed different response kinetics to, 200 mM NaCl. Nucleotide sequence analysis and homology search revealed that the deduced amino sequences of three of the five cDNA fragments showed considerable similarity to those of ${\beta}$-mannosidase (DD1), tomato Pti-6 proteins (DD5), and the tobacco harpin-induced protein hin1 (DD4), respectively. In contrast, the remaining clones, DD3 and DD2, did not correspond to any substantial existing annotation. Using the DD3 fragment as a probe, we isolated a full-length cDNA clone from the cDNA library, which we termed BnSWD1 (Brassica napus salt responsive WD40 1). The predicted amino-acid sequence of BnSWD1 contains eight WD40 repeats and is conserved in all eukaryotes. Notably, the BnSWD1 gene is expressed at high levels under salt-stress conditions. Furthermore, we found that BnSWD1 was upregulated after treatment with abscisic acid, salicylic acid, and methyl jasmonate. Our study suggests that BnSWD1, which is a novel WD40 repeat-containing protein, has a function in salt-stress responses in plants, possibly via abscisic acid-dependent and/or -independent signaling pathways.

HRT-mediated Turnip crinkle virus Resistance in Arabidopsis

  • Park, Jeong-Mee;Daniel F. Klessig
    • The Plant Pathology Journal
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    • 제19권1호
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    • pp.19-23
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    • 2003
  • Turnip crinkle vims (TCV) inoculation onto resistant Arabidopsis ecotype Dijon(Di-17) leads to a hypersensitive response (HR) on the inoculated leaves. A dominant gene, HRT, which confers an HR to TCV, has been cloned from Di-17 plants by map-based cloning. HRT is a LZ-NBS-LRR class resistance gene and it belongs to a small gene family that includes RPP8, which confers resistance to Peronospora parasitica Emco5. Outside of the LRR region, HRT and RPP8 proteins share 98% amino acid identity while their LRR regions are less conserved (87% identity). HRT-transformed Arabidopsis plants developed an HR but generally remained susceptible to TCV due to a dominant RRT allele, which is not compatible with resistance. However, several transgenic plants that over-expressed HRT much higher than Di-l7 showed micro-HR or no HR when inoculated with TCV and were resistant to infection. Both the HR and resistance are dependent on salicylic acid but independent of NPRI, ethylene, or jasmonic acid. Arabidopsis plants containing both TCV coat protein gene and HRT developed massive necrosis and death in seedlings, indicating that the TCV coat protein is an avirulence factor detected by the HRT.

Effects of Elicitors on Seedling Growth, Total Polyphenol and Chlorophyll Content and Antioxidant Activity of Barley (Hordeum vulgare L.)

  • Salitxay, Timnoy;Phouthaxay, Phonesavanh;Pang, Yeoun-Gyu;Yeong, Yu-Chi;Adhikari, Prakash Babu;Park, Cheol-Ho
    • 한국작물학회지
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    • 제61권1호
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    • pp.33-40
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    • 2016
  • This study is focused on the evaluation of growth parameters, total polyphenol content (TPC), chlorophyll content as well as the DPPH (1,1-diphenyl-2-picryhydrazyl) free radical scavenging activity of young barley seedling (YBS) affected by elicitation. Salicylic acid (SA), methyl jasmonate (MJ), amino acid liquid fertilizer (ALF) and microbial metabolism activator (MMA) were used. Elicitation was conducted for two times and various concentrations were used in this study. The result revealed that, MJ 1 ml/L treated-YBS gave the longest seedling length of 1.33 cm, followed by the ones treated with SA 1.38 mg/L and ALF 2 ml/L, respectively. ALF 3 ml/L treatment gave the highest fresh weight of 10 seedlings, followed by MJ 5 ml/L and SA 13.8 mg/L treatment with 1.56 g, 1.55 g and 1.53 g respectively. SA 138.12 mg/L elicitor treated-YBS gave the highest Chl a, Chl b content of $8.57{\mu}g/mg$ and $3.83{\mu}g/mg$, respectively while the highest carotenoid content was found in MJ ml/L treatment with $1.62{\mu}g/mg$. Among elicitor treated-YBS, SA showed better TPC. The highest TPC was found in SA 1.38 mg/L treatment with 18.82 mg/g TAE. Likewise, SA 1.38 mg/L showed the highest DPPH free radical scavenging activity among all the treatments. However, the lowest TPC was found in ALF 1ml/L treated-YBS with 9.46 mg/g TAE, which was even lower than the control (14.31 mg/g TAE).