• Title/Summary/Keyword: salicylate

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Antioxidant activity and metabolic regulation of sodium salicylate on goat sperm at low temperature

  • Wenzheng Shen;Yu Fu;Haiyu Bai;Zhiyu Zhang;Zhikun Cao;Zibo Liu;Chao Yang;Shixin Sun;Lei Wang;Chunhuan Ren;Yinghui Ling;Zijun Zhang;Hongguo Cao
    • Animal Bioscience
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    • v.37 no.4
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    • pp.640-654
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    • 2024
  • Objective: The purpose of this study was to explore the effect of sodium salicylate (SS) on semen preservation and metabolic regulation in goats. Methods: Under the condition of low temperature, SS was added to goat semen diluent to detect goat sperm motility, plasma membrane, acrosome, antioxidant capacity, mitochondrial membrane potential (MMP) and metabonomics. Results: The results show that at the 8th day of low-temperature storage, the sperm motility of the 20 μM SS group was 66.64%, and the integrity rates of the plasma membrane and acrosome were both above 60%, significantly higher than those of the other groups. The activities of catalase and superoxide dismutase in the sperm of the 20 μM SS group were significantly higher than those of the control group, the contents of reactive oxygen species and malondialdehyde were significantly lower than those in the control group, the MMP was significantly higher than that in the control group, and the contents of Ca2+ and total cholesterol were significantly higher than those in the control group. Through metabonomics analysis, there were significant metabolic differences between the control group and the 20 μM SS group. Twenty of the most significant metabolic markers were screened, mainly involving five metabolic pathways, of which nicotinic acid and nicotinamide metabolic pathways were the most significant. Conclusion: The results indicate that SS can effectively improve the low-temperature preservation quality of goat sperm.

Biodegradation of Aromatic Compounds by Strains of Pseudomonas (Pseudomonas속 세균에 의한 방향족화합물 생분해)

  • 정윤창;김경남;최용진;양한철;송준상;서윤수
    • Microbiology and Biotechnology Letters
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    • v.17 no.2
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    • pp.100-108
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    • 1989
  • Thirty-six aromatic compound biodegraders; 10 strains for benzoate, 10 for salicylate, 6 for m-toluate, and 10 for DL-camphor were isolated and taxonomically characterized. A mutant Pseudomonas strain, Ben 6-2, derived from Ben 6 revealed remarkably improved ability to metabolize benzoate. Thus enhancement of the average substrate removal rate from 5.2 to 11.0mg/$\ell$/ hr was attained by the mutant. Both of strains Sal 7 and Tol 2, degraders of salicylate and m-toluate respectively, were classified as Pseudomonas sup. Both strains were found to be extremely effective in metabolizing each aromatic substrates. The average substrate degradation rates in minimal salt media containing 2,200mg/$\ell$ of the substrate were calculated to be 40.1 mg/$\ell$/ hr for strain Sal 7 and 33.0mg/$\ell$/ hr for Tol 2. Cam 10, a camphor degrading strain was demonstrated to be capable of mineralizing benzoate, phenol, toluene, octane, cyclohexane and xylene as well as camphor. Strain 1040 isolated from Cam 10 after repented adaptation to 1,000 mg/$\ell$ m-toluate gained the ability to utilize toluate as a sole carbon source. The mutant Brew actively at the expense of a mixture of car-bon sources; camphor, m-toluate, benzoate and phenol (each: 200 mg/$\ell$) and utilized the substances in the preferential order of camphor, phenol, benzoate, and m-toluate. Among the biodegraders examined Cam 1040 and Tol 2 were detected to harbor plasmid. The plasmid from Cam 1001 was determined to be about 98kb, and evidenced to encode the enzyme(s) for the degradation of camphor. For the further diversification of the metabolic potentials of Cam 1040, the NAH 2 plasmid of Pseudomonas putida NCIB 9816 was transferred to Cam 1040 by conjugation. The exconjugant obtained, Cam 1043, proved to gain an additional ability to metabolize salicylate and naphthalene.

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A Study on the Absorption-Enhancing Effect of Sodium-5-methoxysalicylate (Sodium-5-Methoxy Salicylate의 흡수촉진 효과에 관한 연구)

  • 김기헌
    • YAKHAK HOEJI
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    • v.29 no.3
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    • pp.111-116
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    • 1985
  • Effect of sodium-5-methoxysalicyclate (5MSA-Na) on the absorption of cefmetazol (CMZ) was studied in rectum and duodenum of rats via in situ loop method. Effect of 5MSA-Na on the absorption of CMZ showed markedly different results in rectum and duodenu. Penetration of 5MSA-Na was greater in rectum than in duodenum and water-transfer was markedly increased in duodenum.

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Activation of Defense Responses in Chinese Cabbage by a Nonhost Pathogen, Pseudomonas syringae pv. tomato

  • Park, Yong-Soon;Jeon, Myeong-Hoon;Lee, Sung-Hee;Moon, Jee-Sook;Cha, Jae-Soon;Kim, Hak-Yong;Cho, Tae-Ju
    • BMB Reports
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    • v.38 no.6
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    • pp.748-754
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    • 2005
  • Pseudomonas syringae pv. tomato (Pst) causes a bacterial speck disease in tomato and Arabidopsis. In Chinese cabbage, in which host-pathogen interactions are not well understood, Pst does not cause disease but rather elicits a hypersensitive response. Pst induces localized cell death and $H_2O_2$ accumulation, a typical hypersensitive response, in infiltrated cabbage leaves. Pre-inoculation with Pst was found to induce resistance to Erwinia carotovora subsp. carotovora, a pathogen that causes soft rot disease in Chinese cabbage. An examination of the expression profiles of 12 previously identified Pst-inducible genes revealed that the majority of these genes were activated by salicylic acid or BTH; however, expressions of the genes encoding PR4 and a class IV chitinase were induced by ethephon, an ethylene-releasing compound, but not by salicylic acid, BTH, or methyl jasmonate. This implies that Pst activates both salicylate-dependent and salicylate-independent defense responses in Chinese cabbage.

The Influence of Various Drugs Acting on the Central Nervous System on Sleeping Time of Barbiturates and Non-barbiturate (수종 중추성 약물이 Barbiturates 및 Non-barbiturate의 수면효과에 미치는 영향)

  • Huh, Sook;Chai, Kyoung-Sook;Kim, Hei-Sung
    • The Korean Journal of Pharmacology
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    • v.7 no.1
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    • pp.21-27
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    • 1971
  • The effects of 5 different drugs (amphetamine, caffeine, serotonin, sod. salicylate and pentazocine) on the duration of action of two barbiturates (thiopental and pentobarbital) and an intravenous anesthetic (propanidid) were determined in rats. Duration of action was determined by the time elapsing between loss and return of the righting reflexes. All drugs were injected intraperitoneally except propanidid which was administered by the intravenous route. Preliminary experiments indicated that at a dose of 40 mg/kg either of the two barbiturates or propanidid produced loss of the righting reflexes without death. At this dose, however, the duration of action of propanidid was extremely short. However, this dose was selected for subsequent studies. 1. At the dose employed amphetamine shortened the sleeping time of three compounds. 2. Caffeine and theophylline shortened the sleeping time of thiopental and prolonged the duration of action of pentobarbital. 3. Serotonin had no effect on duration of action of the barbiturates but prolonged the sleeping time produced by propanidid. 4. Sod. salicylate significantly prolonged the sleeping time of the barbiturates whereas pentazocine exhibited this effect only in relation to thiopental.

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Preparation of Water Soluble Chitosan Blendmers and Their Application to Removal of Heavy Metal ions from Wastewater

  • Seo, Sang-Bong;Toshio Kajiuchi;Kim, Dae-In;Lee, Soon-Hong;Kim, Hak-Kil
    • Macromolecular Research
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    • v.10 no.2
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    • pp.103-107
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    • 2002
  • High purity water soluble chitosans (WsCs) were employed as a flocculant to remove heavy metal ions from wastewater of industrial plating wastewater treatment complex. Their weight average molecular weights and polydispersities were 272,000~620,000 g/mol and 1.4~1.9 range, respectively and were readily soluble in water in the pH range of 3~11. Heavy metal ions such as chromium, iron and copper were removed well by WsCs. When WsCs was blended with either sodium N, N-diethyldithiocarbamate trihydrate (SDDC$_{T}$) or sodium salicylate (SSc), the removal efficiency was further increased primarily due to the excess amount of hydrophilic sulfonic and carboxylic groups. Especially, in the case of WsCs-SSc the remaining chromium and copper concentrations were 0.1 mg/L and 9.5 mg/L, which are 1/15 and 1/3 compared with that of pure WsCs, respectively. The former is within the acceptable limit, but the latter is not. Therefore, the effective copper flocculant remains to be studied.d.

AN INFRA-RED SPECTROPHOTOMETRIC STUDY OF THE REACTION IN CALCIUM HYDROXIDE DENTAL CEMENT (치과용(齒科用) 수산화(水酸化)칼슘 시멘트의 경화반응(硬化反應)에 관(關)한 적외선분석학적(赤外線分析學的) 연구(硏究))

  • Kim, Choong-Jong;Min, Byung-Soon;Choi, Ho-Young;Park, Sang-Jin
    • Restorative Dentistry and Endodontics
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    • v.10 no.1
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    • pp.71-83
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    • 1984
  • The purpose of this study was to evaluate the transmission spectrum of the set calcium hydroxide dental cement (Dycal, L.D. Caulk Co. Milford, Del.) Cement was prepared for A T R spectra at a low powder-to-liquid ratio of 3.0gm/ml in order to retard the reaction and facilitate the manipulation of loading the cement into the cell. Spectra were recorded on an I R Spectrophotometer (MX-1, FT) at an agle of incidence of 55. The A T R cell was a RIIc Model TR5 with a hemisperical KRS-5 (Thallium-Bromide-Iodide). A spectrum was recorded within 3 minutes. Further spectra were recorded after 5,10,30 minutes and 1,5,24, 72 hours. The results were as follows; 1. The setting reaction between acid paste and base past would take place fastly within 10 minutes after mix, and that would be slow until 72 hours after mix. 2. In the set cements, some methyl salicylate and calcium hydroxide remained unreacted until 72 hours after mix. 3. The setting reaction and the reaction rate occuring at the surface and in the bulk cements were similar. 4. The chelates were bound together between calcium hydroxide and methyl salicylate.

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