• Title/Summary/Keyword: D-Alanine

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Changes in Nutritional Components of Toha-jeot (Salt- Fermented Toha Shrimp) during Fermentation (토하젓의 숙성과정중 영양성분의 변화)

  • 박원기;박영희;박복희;김희경
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.25 no.4
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    • pp.665-671
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    • 1996
  • Changes in the nutritional components of Toha-jeot, salt-fermented Toha shrimp(Caridina denticulata denticulata $D_{E} H_{AAN}$), which was salted with 20%(w/w) sodium chloride and fermented during 60 days at $4\pm1^{\circ}C$ were investigated. The free amino acid contents in Toha-jeot, of which glutamic acid, leucine, Iysine, arginine, glycine and alanine occupy the majority, in order of abundance, increased gradually up to 50 days of fermentation. Most of the nucleotides were decomposed to hypoxanthine; thus ATP and ADP were not detected. Fermentation decreased inosine, IMP and unsaturated fatty acid contents and increased saturated fatty acid contents of Toha-jeot. Palmitic acid was the most abundant fatty acid, followed by palmitoleic acid, linoleic acid, EPA and stearic acid. Among the mineral constituents of Toha-jeot, Na and Ca were dominantly occupying. The Hunter "L" and "b" values of Toha-jeot increased during fermentation while "a" value remained unchanged.

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Effects of the Administration of 5-(4'- Pipweisinomwrhylphwnly)-2,3-dihydroimidazo[2,1-a] is pquinoline (SDZ-62-434) on Rat Kidney

  • Yi, E.Y.;Ma, Y.;Choi, W.J.;Park, J.S.;Cheon, S.H.;Lim, D.K.
    • Toxicological Research
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    • v.12 no.2
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    • pp.277-281
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    • 1996
  • To evaluate the renal toxicity of the antitumor agent, 5-(piperidonomethylphenyl)-2,3-dihydroimidazo[2,1-a]isoquinoline (SDZ-62-434), rats were treated with SDZ-62-434 of 50 mg/Kg, i.p., once and 10 mg/Kg, i.p., daily for 7 days. The kidney weights and urine volume after and during the treatment were observed. The concentrations of urinary creatinine, protein, and the activities of N-acetyl-$\beta $D-glucosaminidase (NAG), alanine aminopeptidase (AAP), $\gamma$-glutamyl transpeptidase (GGT) and lactate dehydrogenase (LDH) in 24 hr urine were also determined. The kidney weights after acute and subacute administration was not affected. The urine excretions were increased 5 days after the acute administration and increased after the daily 3rd day-administration. The excretion of creatinine was similar as that of urine excretion. The excretion of creatinine was increased 5 days after the acute and subacute administration. However, the protein excretion didn't changed in both treatment. Those indicate that SDZ-62-434 might induce the diuresis and also suggest that diuresis might be due to the some metabolites rather than the compound itself. The urinary activities of NAG and LDH were not affected after the acute treatment. However, the urinary activities of AAP and GGT were slightly increased 3 days after the acute administration but, returned to the control value. In subacute treatment, the activities of GGT was not changed. And the activities of NAG were declined after the 7th day-administration. However, the activities of AAP were significantly increased after the 5th day-administration. Furthermore, the urinary activities of LDH were continuously increased during the subacute administration. These results indicate that the high and subacute administration might induce a weak damage on the kidney cells. Furtherrnore, the present results suggest that SDZ-62-434 might have relatively slow-emerging and mild toxicity to the kidney.

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Effect of Long-Term Pyridoxine Depletion on Lipid Composition in the Developing Rat Brain (장기간의 Pyridoxine 부족이 새끼쥐 뇌의 지방조성에 미치는 영향)

  • 김정희
    • Journal of Nutrition and Health
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    • v.20 no.5
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    • pp.318-329
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    • 1987
  • Weanling female Sprague Dawley rate were fed 1.2mg pyridoxine' HCl/kg diet Cdepleted diet) and 2 22mg pyridoxine' HCI/kg dietCcontrol diet). The control and one depleted group were fed their diets throughout growth, gestation, and lactation. Other three depleted groups were fed the depleted diet throught growth and gestation, and then pyridoxine w was supplemented by feeding control diet at 5, 10, and 21 days postpartum. The brains were analyzed for proteolipid protein, cholesterol, and cerebrosi­d de. Percentage stimulation of erythrocyte alanine aminotransferase activity was also determined. Body and brain weight were significantly lower at all ages in depleted group than the control and depleted group showed inadequacy of B6 at all ages. PProteolipid protein and cholesterol were significa­n ntlylower in the depleted group at 10, 21, 35 and 5 50 days. The postnatal development of cerebroside in brain was delayed in depleted groups suppleme­I nted at 5, 10, and 21 days. When supplementation was initiateo at 5 days postparturn, contents of cho­lesterol proteolipid protein were reversed. But some differences in brain development of pups we­re evident when supplementation of dams was de­layed to 10 days or 21 days.

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Extremely Low Serum Alanine Transaminase Level Is Associated with All-Cause Mortality in the Elderly after Intracranial Hemorrhage

  • Kim, Doo Young;Cho, Kwang-Chun
    • Journal of Korean Neurosurgical Society
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    • v.64 no.3
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    • pp.460-468
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    • 2021
  • Objective : Extremely low alanine transaminase (ALT) levels are associated with all-cause mortality in frail elderly individuals; the clinical significance of ALT as a reliable biomarker is now being considered. Predicting mortality with routine tests at the time of diagnosis is important for managing patients after intracranial hemorrhage. We aimed to investigate whether an extremely low ALT level is associated with mortality in the elderly after intracranial hemorrhage. Methods : A retrospective review was performed on 455 patients with intracranial hemorrhage admitted to a university-affiliated tertiary care hospital from February 2014 to May 2019. Multivariate Cox regression analysis was performed for all ages and for each age group to determine whether an extremely low ALT level is an independent predictor of mortality only in the elderly. Results : Overall, 294 patients were enrolled, and the mean age of the subjects was 59.1 years, with 99 (33.8%) aged ≥65 years. The variables associated with all-cause mortality in all subjects were age, C-reactive protein (CRP) levels, hemoglobin (Hb) levels (<11 g/dL), and initial Glasgow coma scale (GCS) scores. In young patients, CRP, low Hb levels, and initial GCS scores were significantly associated with all-cause mortality. However, in the elderly (≥65 years), the variables significantly associated with all-cause mortality were extremely low levels of ALT (<10 U/L) (adjusted hazard ratio, 3.313; 95% confidence interval, 1.232-8.909; p=0.018) and initial GCS scores. Conclusion : Extremely low ALT level (<10 U/L) at the time of diagnosis is a significant risk factor for all-cause mortality in the elderly after intracranial hemorrhage.

Microbial Basis for Enhanced Degradation of the Fumigant 1,3-Dichloropropene (1,3-D) in Soil

  • Chung, Keun-Yook
    • Proceedings of the Korean Society for Applied Microbiology Conference
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    • 2000.10a
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    • pp.125-139
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    • 2000
  • The differential enhanced degradation of cis- and trans-1,3-D was observed in the previous two studies performed by Ou et al. (1995) and especially Chung et al. (1999). This study was initiated to investigate the involvement of microorganisms in the differential enhanced degradation of the chemicals. As expected, microorganisms were responsible for the enhanced degradation of the chemicals. A mixed bacterial culture capable of degrading 1,3-D was isolated from an enhanced soil sample collected from a site treated with 1,3-D. Similar to the enhanced soil, the mixed culture degraded trans-1,3-D faster than cis-1,3-D. This mixed culture could not utilize cis- and trans-1,3-D as a sole source of carbon for growth. Rather, a variety of second substrates were evaluated to stimulate the differential enhanced degradation of the two isomers. As a result, the mixed culture degraded cis- and trans-1,3-D only in the presence of a suitable second substrate. Second substrates that had the capacity to stimulate the degradation included soil leachate, tryptone, tryptophan, and alanine. Other substrates tested, including soil extract, glucose, yeast extract, and indole (ailed to stimulate the degradation of the two isomers. Therefore, it appeared that the degradation of cis- and trans-1,3-D was a cometabolic process. The mixed culture was composed of four morphologically distinctive bacterial colonies.

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Effect of the Gardenia jsaminodes and Glycine max on Hepatotoxicity of D-Galactosamine in Rats (D-Galactosamine으로 유발된 흰쥐의 간손상에 대한 치자와 두시 추출액이 미치는 영향)

  • Kim, Jeong-Sang;Jeong, Jong-Kil
    • 대한상한금궤의학회지
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    • v.4 no.1
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    • pp.29-36
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    • 2012
  • Aim : To investigate the hepatotective effect of Gardenia jsaminodes and Glycine max aqueous extract against D-galactosamine (d-GalN, 300mg/kg body weight) was administered to the male Sprague Dawley (SD) rats. Materials and Methods : The study was carried out on male SD rats (age matched, weight $250{\pm}10g$). Experimental groups divided four: Normal group (Nor) was administered saline, Control (Con) group was administered saline after d-GalN treatment. Experimental group (Exp) was administered Gardenia jsaminodes (200 mg/kg; Ga group), Glycine max (700 mg/kg; Gl group), and Gardenia jsaminodes+Glycine max (200 mg/kg+700 mg/kg, GG group) during 14 days(n=5). Results : d-GalN administration induced hepatotoxicity in rats which was manifested by increased levels of alanine aminotransferase, aspartate aminotransferase, alkaline phosphatase but decreased total cholesterol and triglyceride. Treatment with Gardenia jsaminodes extract significantly protected the liver in d-GalN administered rats. Conclusion : Gardenia jsaminodes aqueous extract and Gardenia jsaminodes+Glycine max extract possesses hepatoprotective potential, thus validating its use in alleviating toxic effects of d-GalN.

Conformational Role of Proline in $\alpha$-Helices

  • Kang, Young-Kee;Kim, Mee-Kyoung
    • Proceedings of the Korean Biophysical Society Conference
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    • 1998.06a
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    • pp.22-22
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    • 1998
  • Conformational energy calculations have been carried out for proline-containing alanine-based pentadecapeptides with the sequence Ac-(Ala)/sun n/-Pro-(Ala)$_{m}$-NHMe (n + m = 14), in order to figure out the positional preference of proline in $\alpha$-helices. The conformational energy was computed a sum of the potential energy (ECEPP/3) and the hydration free energy computed by the hydration shell model.(omitted)d)

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Malonyl Amino Acids and Their Esters as Psychoactive Agents I

  • Jain, Dilip;Tripathi, Meena;Kohli, D.V.;Uppadhyay, R.K.
    • Archives of Pharmacal Research
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    • v.15 no.2
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    • pp.184-186
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    • 1992
  • Malonic acid amides were synthesized using different amino acids and their esters. THe synthesized compounds were evaluated for their sedative activity on rats. Potentiating effect of all the compounds on pentobarbitone induced sleep on rats was observed. Plasma protein binding studies were also carried out and it was observed that the synthesized compounds have low plasma protein binding as compared to barbiturates.

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Antitumor and Antioxidant Activities of the Extracts from Fruiting Body of Phellinus linteus

  • Lee, June-Woo;Baek, Seong-Jin;Bae, Woo-Chul;Park, Jeong-Min;Kim, Yong-Seok
    • Mycobiology
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    • v.34 no.4
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    • pp.230-235
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    • 2006
  • Fruiting bodies of Phellinus linteus were extracted by hot water and alkali methods. Sugar contents of PL-H (hot water extract) and PL-A (alkali water extract) were 81.1%, 37.4% and protein contents were 6.2%, 21.8%, respectively. Amino acid pattern showed that two extracts contained large amount of aspartic acid and alanine. Two extracts showed characteristic IR absorption pattern for glycosidic bond at $890\;cm^{-1}$. PL-H was divided two fractions by gel filtration chromatography and the molecular weights of each fraction were estimated to be about 10 kD and 225 kD, respectively and also PL-A was estimated 10 kD. Two extracts showed strong antitumor, immunomodulating and antioxidant activities, and were compared with commercialized glycopeptide anticancer drugs.

Predictors of nonresponse to intravenous immunoglobulin therapy in Kawasaki disease

  • Park, Hyo Min;Lee, Dong Won;Hyun, Myung Chul;Lee, Sang Bum
    • Clinical and Experimental Pediatrics
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    • v.56 no.2
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    • pp.75-79
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    • 2013
  • Purpose: It has been reported that 10% to 20% of children with Kawasaki disease (KD) will not respond to intravenous immunoglobulin (IVIG) treatment. In this study, we aimed to identify useful predictors of therapeutic failure in children with KD. Methods: We examined 309 children diagnosed with KD at the Kyungpook National University Hospital and the Inje University Busan Paik Hospital between January 2005 and June 2011. We retrospectively reviewed their medical records and analyzed multiple parameters in responders and nonresponders to IVIG. Results: Among the 309 children, 30 (9.7%) did not respond to IVIG. They had significantly higher proportion of neutrophils, and higher levels of aspartate aminotransferase, alanine aminotransferase (ALT), total bilirubin, and N-terminal fragment of B-type natriuretic peptide than did responders. IVIG-nonresponders had a significantly longer duration of hospitalization, and more frequently experienced coronary artery lesion, and sterile pyuria. No differences in the duration of fever at initial treatment or, clinical features were noted. Conclusion: Two independent predictors (ALT${\geq}$84 IU/L, total bilirubin${\geq}$0.9 mg/dL) for nonresponse were confirmed through multivariate logistic regression analysis. Thus elevated ALT and total bilirubin levels might be useful in predicting nonresponse to IVIG therapy in children with KD.