To study the relationship between oxygen tolerance and enzyme activity in the oxygen metabolism of bifidobacteria, the activities of catalase, superoxide dismutase (SOD), NADH oxidase and NADH peroxidase from six typical bifidobacteria and other bacteria were assayed by spectrophotometry. Catalase activity was hardly detected in any of the bifidobacteria tested. SOD activity was detected in every species including the Clostridium species. In particular SOD activity was notably high in the aerosensitive Bifidobacterium adolescentis. This fact indicates that SOD activity is not a critical factor to ensure aerotolerance. Aerosensitive B. adolescentis showed very low NADH oxidative enzyme activity whereas other aerotolerant bifidobacteria exhibited considerable activity for the enzymes. It seems that detoxification of $H_2O_2$ by NADH oxidative enzymes might be an important factor in improving for aerotolerant bifidobacteria survival rates in an oxygen environment.
Superoxide dismutase (SOD) and catalase constitute the first coordinated unit of defense against reactive oxygen species. Here, we examined the effect of ginseng saponins on the induction of SOD and catalase gene expression. To explore this possibility, the upstream regulatory promoter region of Cu/Zn superoxide dismutase (SODI) and catalase genes were linked to the chloramphenicol acetyl-transferase (CATI structural gene and introduced into human hepatoma HepG2 cells. Total saponin and panaxatriol did not activate the transcription of SODI and catalase genes but panaxadiol increased the transcription of these genes about 2-3 fold. Among the Panaxadiol ginsenosides, the Rb2 subtraction appeared to is a major induce of SODI and catalase genes. Using the deletion analyses and mobility shift assays, we showed that the 5051 gene was greatly activated by ginsenoside Rba through transcription factor AP2 binding sites and its induction. We also examined the effect of the content ratio of panaxadiol extracted from various compartment of ginseng on the transcription of 5031 gene. Saponin extract that contains 2.6-fold more PD than PT from the fine root Increased the SODI induction about 3-fold. These results suggest that the panaxadiol fraction and its ginsenosides could induce the antioxidant enzymes, which are important for maintaining cell viability by lowering level of oxygen radical generated from intracellular metabolism.
Journal of the Korean Society of Food Science and Nutrition
/
v.30
no.6
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pp.1215-1219
/
2001
The present study was conducted to investigate effect of powdered herb of Aster scaber Thunb. (chamchwi) on antioxidant system in ethanol-administrated rats. Four week-old Sprague Dawley male rats which had initial body weights of 97.10$\pm$4.50 g were randomly divided into three groups: control (ethanol treated, vitamin E-deficient group); 5% chamchwi (ethanol-treated, 5% chamchwi powder-supplemented group): 10% chamchwi (ethanol-treated, 10% chamchwi powder-suplemented group). Three groups of rats were suplemented with three experimental diets for 4 weeks and orally administrated 10% ethanol (v/v) daily via drinking water in the last experimental week. Contents of TBARS (thiobarbituric acid reactive substance). glutathione in liver and kidney and serum albumin were determined. The activities of superoxide dismutase (SOD), catalase and glutathione peroxidase (GSH-px) in liver and kidney were also analyzed. Relative weight of liver and spleen to body in chamchwi groups was lower than that in control group (p<0.05). The most remarkable result was that liver TBARS contents in chamchwi groups (5% chamchwi group, 46 $\mu\textrm{g}$ in MDA value; 10% chamchwi group, 35 $\mu\textrm{g}$) were significantly lower (p<0.05) than that in control group (66 $\mu\textrm{g}$). The supplement of chamchwi powder lowered the activity of manganese- superoxide dismutase (Mn-SOD), catalase in liver and GSH-px in kidney. The levels of glutathione in liver and kidney and serum albumin were not significantly different in all experimental groups (p<0.05). These results indicate that powdered herb of Aster scaber decreases lipid peroxidation and acitvity of Mn-SOD increased by alcohol-induced oxidative stress in liver of rats.
Journal of the Korean Society of Food Science and Nutrition
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v.38
no.4
/
pp.401-408
/
2009
PME88 (gliadin-combined) melon superoxide dismutase (SOD) is known to promote the production of the body‘s own natural antioxidants including superoxide dismutase, catalase and glutathione peroxidase. In this study, we investigated the inhibitory effects of PME88 melonSOD on the ultraviolet-induced photo-aging by the evolution of minimal erythemal dose (MED), erythema quotation and spectrocolorimetric measurements of erythema. The analysis of the evolution of the MED showed a significant increase 28 days after the daily taken of the PME88 melonSOD. The analysis of the erythema quotation showed that on D29, for the dose 1.25 MED, erythema intensity is significantly higher for placebo group than for PME88 melonSOD group. At doses 0.64 MED$_{D14}$, 0.80 MED$_{D14}$ and 1 MED$_{D14}$ the value of parameter $a^*$ (the most sensitive to the colour changes bound to the variations of blood flow. It permits to assess the evolution of erythema) is significantly higher for placebo group. No significant difference has been observed between groups (PME88 melonSOD and placebo) on the evolution of the number and consistency of feces after 4 weeks of treatment. No intolerance has been observed during the 4 weeks of treatment. These results mean that PME88 melonSOD as a dietary supplement could be useful to attenuate ultraviolet-induced skin photo-aging.
Antioxidants and antioxidants with somatic cell co-culture, bovine oviduct epithelial cells(BOEC) and buffalo rat liver cells(BRLC), were studied as a mean of increasing the development and intracellular glutathione(GSH) concnetrations of bovine embryos derived from in vitro matured(IVM) and in vitro fertilized(IVF) oocytes. Cell numbers and intracellular GSH concentrations of blastocysts were also counted. The developmental rate beyond morula stages in CRlaa containing taurine(2.5mM), superoxide dismutase(SOD, 600U) and catalase(250U) were 1%, 75.0%, 64.8% and 62.3%, respectively. The developmental rate in antioxidant groups was significantly higher than in control(P<0.05). The intracellular GSH concentrations of blastocysts cultured in 0, 2.5mM taurine, 600U SOD and 250U catalase were 33.8pM, 39.3pM, 42.3pM and 54.8pM, respectively. This result indicated that the developmental rates and intracellular GSH concentrations of catalase group was significantly higher than any other groups(P<0.05). The developmental capacity in CRlaa plus various antioxidants co-cultured with BOEC were 55.3%(control), 74.1%(2.5mM taurine), 66.7%(600U SOD) and 70.7%(250U catalase) and in CRlaa plus various antioxidants co-cultured with BRLC in control, 2.5mM taurine, 600U SOD and 250U catalase were 63.8%, 75.5%, 71.0% and 73.5%, respectveily, the intracellular GSH concentrations of blastocyst embryos co-cultured with BOEC and BRLC in CRlaa with 0.25mM taurine, 600U SOD and 250U catalase were 73.4pM and 64.4pM, 79.9pM and 67.5pM, 82.3pM and 71.7pM, and 83.0pM and 80.0pM, respectively. Cell numbers of blastocysts were not difference in all experimental groups. These studies indicate that andtioxidants and antioxidant with somatic cell co-culture can increase the proportion of embryo that developed into morula and blastocysts, and the intracellular GSH concentrations of blastocyst embryos.
Journal of the Korean Society of Food Science and Nutrition
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v.25
no.5
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pp.839-845
/
1996
To investigate effects of Jujube methanol extract on the carbon tetrachloride-induced liver damage in rats, experimental animals were divided into 4 groups; control group(CON), Jujube methanol extracttreated group(JME), $CCl_4$- treated groups(CCl), and Jujube methanol extract and $CCl_4$-treated group (JMC). Each group was sacrificed after 2 or 4week feeding and determined the activities of serum transaminase(GOT, GPT) and hepatic xanthine oxidase, superoxide dismutase(SOD), catalase and glutathione peroxidase(GSH-Px), and hepatic contents of thiobarbituric acid-reactants(TBARS) and glutathione in liver. The activities of sGOT and sGPT, and the hepatic content of TBARS after $CCl_4$-treatment were markedly increased, compared to CON, but those levels were significantly decreased by the pretreatment of Jujube methanol extract, especially in sGOT after 2 and 4 week and TBARS after 4week respectively. Xanthine oxidase activity was increased by $CCl_4$- treatment as compared to CON, but it was also inhibited by the pretreatment of Jujube methanol extract for 2 and 4 week. The activities of SOD, catalase and GSH-Px were elevated by $CCl_4$-treatment, compared to CON, but those elevated activities were showed significant decreasing effect by pretreatment of Jujube methanol extract after 2 and 4week as compared to CON, however, hepatic catalase activity was not affected significantly. These results suggest that Jujube methanol extract is believed to be a possible protective effect for the carbon tetrachloride-induced hepatotoxicity in rats.
The strains of Panax ginseng C.A. Mey., P. quinquefolius L. and selected strains P. ginseng-B, P.ginseng-A, P. quinquefolius-C were investigated. Activities of SOD, catalase and peroxydase were determined by methods of Fridovich et al. (1979), Komov et al.(1975), Bovaird et al.(1982) respectively. Activities of SOD, catalase, peroxydase were investigated every day 5 in cycle of cultivation. For P. ginseng it was the 35 days, P. quinquefolius the 70 days, P. quinquefolius-C 90 days. P. ginseng-B 90 days, P. ginseng-A 60 days. The P. quinquefolius, P. quinquefolius-C, P. ginseng-B had clear differentiation and developed tracheid elements, which are absent in strain of P. ginseng. The peaks of protein content for P. ginseng (4.5 units/g) and for P. quinquefolius (3.5 units/g) were on day 10 and remained unchanged till the last cultivation. The strain P. ginseng-A had two peaks of protein content (2.5 mg/g) on day 15 and on day 30. For P. ginseng-B strain these peaks were on day 5 and day 40 (3.5 mg/g). Peroxydase activity peak (60 units/g) in P. ginseng strain was on day 10. This activity in P. ginseng-B had two peaks on day 15 and day 35 and reached 95 units/g , increasing to 150 units/g to day 80. In strain of P. ginseng-A was only one maximum of this activity -130 units/g on day 45. In P. quinquefolius peroxydase activity was 103 units/g on day 40, increasing to 135 units/g to day 90. For P. quinquefolius-C this activity peak was 136 units/g on day 60. Peroxydase activities for the upper and lower layers of biomass was different and varied considerably from 28-35 units/g in lower to 270-290 units/g for upper layer. The SOD activity had two peaks in P. ginseng strain the 80 units/g and the 70 units/g on day 20 and day 35 respectively. Activity of SOD in P. quinquefolius strain reached 53 units/g on day 40 and increased up to 83 units/g to day 60.The similar increase of SOD activity was marked for P. ginseng-B to 85 units/g on day 90. In P. ginseng strain the 6 molecular isoforms SOD was defined. One of them with RfO,6 was determined in all days of cycle, three other (Rf-0.43; 0.54;0.80) only on day 10 and day 20. The isoform of SOD with Rf-0,29 was detected only on day 10 and with Rf-0,35 only on day 35. The catalase activity decreased in all strains to the last days of cultivation. The changes of SOD, catalase and peroxydase activities reflect the differences between the strains of Panax ginseng and Panax quinquefolius and their selected forms. The correlation between maximum life span of strains and activities of their antioxydant enzymes were detected.
In an attempt to define the effects of Biphenyldimethyl dicarboxylate(DDB) on the lipid peroxidation, oxygen free radical scavenging enzymes activities and hepatic functions in ethanol-induced hepatotoxic rats, we studies malondialdehyde(MDA) level and the activities of catalse, superoxide dismutase(SOD), glutamic-oxaloacetic transaminase(GOT) and glutamic-pyruvic transaminase(GPT) in liver of the rats at 24, 48 and 72 hr after the injection of ethanol and DDB. Sprague-Dalwey albino rats weighing 250 to 280gm were injected intraperitoneally with ethanol(2.5 gm/kg ) only and ethanol plus DDB(300mg/kg ). The result obtained can be summarized as follows : 1) The group treated with ethanol showed significantly higher MDA level and lower catalase and SOD activities at 24, 48 and 72hr after the injection as compared with that of control group. 2) The group treated with ethanol showed significantly higher GOT and GPT activities at 24, 48 and 72hr after the injection as compared with that of control group. 3) The group treated with ethanol plus DDB showed significantly lower MDA level and higher catalase and SOD activities at 24, 48 and 72 hr after the injection as compared with that of ethanol group. 4) The group treated with ethanol plus DDB showed significantly lower GOT and GPT activities at 24, 48 and 72 hr after the injection as compared with that of ethanol group. These results suggest that the excessive oxygen free radicals resulting from the depression of the activities of catalase and superoxide dismutase is an important determinant in pathogenesis of ethanol-induced hepatotoxicity and DDB has antioxidant effects.
Oxygen derived radicals($O_2\;^-$, $H_2O_2$, and $OH^-$) are thought to play a role in a lot of human diseases. And it has been believed that antioxidant enzymes such as superoxide dismutase(SOD) and catalase could protect the tissues from damage resulting from the oxygen derived free radicals. The purpose of this study was performed to investigate the activity of the SOD(CuZn- and Mn-SOD) and catalase in inflammatory gingival tissues and the correlation between boold glucose level and antioxidants and age in non-insulin dependent diabetes mellitus(NI- DDM) patients. For this study, the patients were classified into normal, inflammatory, and diabetic, and ten their papillary bleeding index(PBI) and gingival index were checked. Subjects consisted of 11 healthy patients with no inflammatroy gingiva, 20 adult periodontitis patients, and 8 diabetic patients, aged 33 to 66(average: 44.62). The blood glucose level of diabetic group was ranged from 120ml/dl to 160ml/dl(physical status 0 : averge : 135.67ml/dl). Gingival tissues were surgically obtained from the patients during periodontal surgery, extraction, and clinical corwn lenghening procedure. The activity of CuZn and Mn- SOD and catalase in the gingival tissues was measured by using UV-spectrophotometer by the same methods that Crapo et al. And Aebi did, respectively. The results were as follows : 1. The Mn-SOD activity was significantly lower in inflammatory group in comparison to normal group(P<0.05), and the activities of antioxidants in diabetic group were not significant in comparison to normal inflammatory group(P>0.05). 2. The activities of antioxidants showed little variation among individuals of different ages (P>0.05). 3. The higher blood glucose level was, the higher gingival index was(P<0.05). 4. There was no correlation between blood glucoe level and activity of antioxidant in inflammatory gingival tissues of NIDDM patients(P>0.05). In conclusion, these results, within the limits of the present experiment, suggest that the activity of Mn-SOD might reflect the inflammatory status of gingival tissue, and the activity of antioxidants was independent of blood glucose level of diabetic patients in physical status 0.
Kim, Jang-Shu;Kim, Chung-Hui;Kim, Gon-Sup;Hah, Dae-Sik;Park, Sun-Gun;Kim, Yang-Mi
Toxicological Research
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v.17
no.1
/
pp.41-47
/
2001
In order to test the effects of hyperbaric oxygen (HBO) and $\alpha$-tocopherol on full-thickness skin grafts in rats, we peeformed full-thickness skin grafts bilaterally on rats. After surgery, we analyzed the tissue-concentrations of superoxide dismutase (SOD), catalase, and glutathione peroxidase(GPx)/reductase(GPr) on days 0, 2, 4, 7, 10, 14, 21 and 28. The four groups had similar patterns of change in SOD, catalase, GPx and GPr values. SOD increased initially, and was significantly increased at day 7, returning to the preoperative activity level on day 14 (control, HBO, and $\alpha$-tocopherol treated alone) and 28 (HBO plus $\alpha$-tocopherol). Catalase had a similar pattern of change as the SOD enzyme activity, except for the surgical control on day 2. Glutathione peroxidase/reductase activity in the four groups had a similar pat-tern of enzyme activity, with a significant increase from preoperative level on day 4, peaking during days 7 to 10, and returning to preoperative level on day 21(surgical control, HBO, and $\alpha$-tocopherol-treated alone) and 28 (HBO plus $\alpha$-tocopherol treated group). Hence, the clinical use of HBO and $\alpha$-tocopherol mixture can be recommended as an adjunctive treatment for free skin grafts in rats. But, the antioxidant used, its dose, and the timing of its administration, as well as, the exposure time and the pressure of HBO, should be the subject of further research.
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