Carrot ($Daucus$$carota$ L. var. $sativa$) is one of the most widely used crops in the world. Moreover it is an important crop because of its high content of ${\beta}$-carotene, well-known as the precursor of vitamin A carotenoid. However, seed-hair which is generated in epidermal cell of seeds inhibits absorption and germination. For that reason, carrot seeds are commercialized after mechanical hair removal process. To overcome such cumbersome weaknesses, new breeding program for developing hairless-seed carrot cultivar has been needed. Therefore, in this study, cDNA libraries from seeds of short-hair seed phenotype CT-ATR615 OP 666-13line and hairy seed CT-ATR615 OP-CK1-9 line were constructed and expression patterns related to generation of seed-hair were analyzed by comparison of EST sequences. Differential EST sequence results between two lines were classified into FunCat functional categories based on the results of BlastX search. Higher expression quantities belonging to metabolic category were shown on short-hair seed line than hairy-seed one. Differential expression quantities between those two lines in the protein folding and stabilization, subcellular localization categories were supposed to contribute variously on the generation of seed-hair. We confirmed 50 and 59 SSR sites, and 2 SNP sites by analyzing EST sequences in two lines; thereafter, we designed SNP and SSR primer sets from these EST sequence information as a molecular marker. These markers are thought to be used in research of molecular markers for classification of carrot family and related to various traits, as well as seed-hair characteristic.
The anti-inflammatory effect of Sargassum coreanum ethanolic extract (SCEE) was investigated using lipopolysaccharide (LPS)-induced inflammatory responses in this study. It was shown that there was no cytotoxicity in the viability of macrophages treated with SCEE when compared to the control. The production of NO was considerably suppressed by SCEE, approximately up to 50% at 100 μg/ml. This significantly decreased levels of IL-6, TNF-α, and IL-1β. In addition, the expression of iNOS, COX-2, NF-κB was suppressed by SCEE treatment. In in vivo testing, the croton oil-induced mouse ear edema was attenuated by SCEE and there were no mortalities in mice administered with 5000 mg/kg body weight of SCEE over a 2 week observation period. From these results, SCEE inhibits the release of LPS-induced pro-inflammatory cytokines and mediators, suggesting that SCEE could be a potential agent for anti-inflammatory therapies.
$PGE_2$ and $PGF_{2{\alpha}}$ are known to act similarly in a number of animal tissues. They both facilitate regression of corpus luteum(Poyser, 1972; Fuch et al, 1974; Coudert et at, 1974) and stimulate contraction of uterine muscle (Laudanski et al, 1977; Porter et al, 1979; Hollingsworth et al, 1980). It is, however, not known whether these two prostaglandins exert similar actions in osmotic fragility of erythrocytes (Rasmussen et al, 1975) and $PGF_{2{\alpha}}$ alters conformation of membrane proteins (Meyers aud Swislocki, 1974). The former effect may not be mediated through changes in c- AMP concentration in the cell, since the adenylate cyclase activity in human erythrocyte is extremely low (Rodan et al, 1976; Sutherland et al, 1962) and the latter effect implies that physical state (or fluidity) of the membrane is altered by $PGF_{2{\alpha}}$. The present study was undertaken to elucidate mechanisms of action of $PGE_2$ and $PGF_{2{\alpha}}$ on the human erythocyte membrane by examining their effects on osmotic fragility and $Ca^{++}$ binding to the membrane fragments. The results are summarized as follows: 1) $PGE_2$ and $PGF_{2{\alpha}}$ increased osmotic fragility at concentrations above $10^{11}\;M$, the effect being similar for both hormones. The concentration of NaCl for 100% hemolysis was $1/16{\sim}1/17\;M$ in the presence of $10^{11}\;M\;PGE_2$ or $PGF_{2{\alpha}}$ and 1/18 M in the absence of the hormone (control). 2) When erythrocytes were suspended in 1/15 M NaCl solution, $44.2{\pm}4.3%$ of cells were hemolyzed. Addition of $10^{12}\;M\;PGE_2$ or $PGF_{2{\alpha}}$ did not increase hemolysis. When the concentration of the hormones was increased to $10^{11}\;M$, however the degree of hemolysis increased markealy to about 80%. No further increase in hemolysis was observed at concentration of the hormones above $10^{11}\;M$. 3) The additional hemolysis due to $10^{11}\;M\;PGE_2$ and $PGF_{2{\alpha}}$ appeared to he identical regardless of absence or presence of $Ca^{++}\;(0.5{\sim}10\;mM)$ in the suspending medium. 4) In the absence of prostaglandin, the binding of $Ca^{++}$ to the erythrocyte membrane increased curvilinearly as the $Ca^{++}$ concentration increased up to 5 mM above which it leveled off. A similar dependence of $Ca^{++}$ binding on the $Ca^{++}$ concentration was observed in the presence of $10^{11}\;M\;PGE_2$ or $PGF_{2{\alpha}}$, however, the amount of $Ca^{++}$ bound at a given $Ca^{++}$ concentration was significantly higher than in the absence of the hormones. 5) As in the hemolysis, $PGE_2$ and $PGF_{2{\alpha}}$ did not affect the $Ca^{++}$ binding at a concentration of $10^{12}\;M$, but increased it by about 100% at concentration above $10^{11}\;M$. These result indicate that both tile osmotic fragility of erythrocyte and the $Ca^{++}$ binding to the erythrocyte membrane are similarly enhanced by $PGE_2$ and $PGF_{2{\alpha}}$, but these two effects are not causally related. It is, therefore, concluded that the prostaglandin-induced hemolysis is not directly associated with alterations of the $Ca^{++}$ content in the membrane.
Jeong, Seong-Yeop;Kang, Suna;Kim, Min Joo;Kang, Eun Seon;Wu, Xuangao;Lee, Na Ra;Park, Sunmin
Journal of Applied Biological Chemistry
/
v.61
no.1
/
pp.17-23
/
2018
The purpose of this study was to produce mulberry extract and silk protein (MS) added yogurt fermented with vegetable lactic acid bacteria (Lactobacillus plantarum and Bacillus acidiproducens) and to determine their physicochemical properties and preference. The physicochemical properties were examined total phenol and antocyanins contents, viscosity, visible cell counts, chromaticity and sensory evaluation. Yogurt made with LP (PL) and BA (BA) had similar pH and titrable acidity and mulberry and MS addition made lower pH and higher titrable acidity than the control (YF) (p <0.05). The MS added yogurt exhibited adaptable acidity in the market. As expected, MS added yogurt had higher redness, and lower lightness and yellowness than no added one regardless of bacteria kinds, in chromaticity (p <0.05). MS added yogurt showed higher value of total phenols and anthocyanins than no MS added one. MS added yogurt also increased the number of live bacteria in the ascending order of than LP, BA, YF, LP + MS, and BA + MS. In sensory evaluation, BA + MS had the higher overall acceptance than the others. In conclusion, yogurt fermented with Lactobacillus plantarum and Bacillus acidiproducens was acceptable as much as the commercial Lactobacillus. Moreover, MS added yogurt fermented with Bacillus acidiproducens was the most preferred, based on physicochemical properties and overall acceptability for sensory evaluation.
Phytic acid(PA) (Inositol hexaphosphate, $IP_6$) is a naturally occurring polyphosphorylated carbohydrate that is present in substantial amounts in almost all plants and mammalian cells. Recently PA has received much attention for its role in anticancer activity. In the present study, the preventive effects of PA on colon carcinogenesis were investigated. Six-week old Fisher 344 male rats were fed a AIN-93G purified diet and PA(0.5% or 2% PA in water) for 8 weeks. The animals received two ($1^{st}\;and\;2^{nd}$ week) injections of azoxymethane(AOM, 15 mg/kg b.w.) to induce colonic aberrant crypt foci(ACF). After sacrifice, the total numbers of aberrant crypts(AC) and ACF in colonic mucosa were examined after staining with methylene blue. Blood and serum were analyzed with a blood cell differential counter and an automatic serum analyzer. AOM induced the total numbers of $142.3{\pm}22.3$ ACF/colon and $336.6{\pm}55.1$ AC/colon. PA at the doses of 0.5 and 2% decreased the numbers of ACF and AC/colon in a dose-dependent manner. The numbers of ACF/colon and AC/colon by PA at the dose of 0.5% were $124.4{\pm}28.5\;and\;302.7{\pm}67.3$, respectively. PA at the dose of 2% significantly decreased the ACF and AC numbers to $109{\pm}18.1\;and\;254.8{\pm}50.6$, respectively(p<0.01). Especially, 2% PA significantly reduced the number of large ACF(${\geq}4$ AC/ACF) from $26.8{\pm}6.2$ ACF/colon to $15{\pm}6.7$ ACF/colon(p<0.01). Although some parameters in blood counts and serum chemistry were changed compared with the control, no specific toxicity was found. These findings suggest that phytic acid can be a chemopreventive agent for colon carcinogenesis resulting from inhibition of the development of ACF in the F344 rat.
Kim, Hoon;Jeong, Jae-Hyun;Jeong, Heon-Sang;Hwang, Jong-Hyun;Yu, Kwang-Won
Korean Journal of Food Science and Technology
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v.43
no.5
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pp.633-640
/
2011
After Ganoderma lucidum was cultured in mushroom complete medium (MCM) supplemented with ginseng extract (GE), crude polysaccharide (GL-GE-CP) was fractionated from mycelium. Among GL-GE-CP from mycelium in MCM supplemented with 5, 10, and 15% GE (v/v ratio of MCM to GE), GL-GE-15-CP (15% GE) most significantly enhanced macrophage stimulation and intestinal immune system modulating activity compared with GL-CP in MCM without GE. When GL-GE-15-CP was further fractionated on DEAE-Sepharose CL-6B, GL-GE-15-CP-II displayed more potent activity than subfractions from GL-CP on macrophage stimulation, interleukin-12 production, and intestinal immune system modulation (1.75-, 5.68-, and 1.76-fold, respectively). Anti-metastasis effect against colon 26-M3.1 carcinoma cells was also enhanced by GL-GE-15-CP-II (72.8% inhibition). In addition, GL-GE-15-CP-II contained neutral sugar (83.00%) and uronic acid (9.11%), and consisted of Ara, Man, Gal and Glc (molar ratio of 0.39:0.50:0.75:1.00). Furthermore, GE supplementation helped to enhance the immunomodulation in G. lucidum, and it is assumed that neutral polysaccharides play an important role.
Docosahexaenoic acid(DHA), a $\omega$3 series fatty acid and arachidonic acid(AA). a $\omega$6 series fatty acid were found in relatively high concentrations in the phospholipids(PLs) of cell membranes of nerve tissues, and they can be affected by various factors. The present study examined the effects of dietary $\omega$6 and $\omega$3 fatty acid composition on P/M/S and on $\omega$3/$\omega$6 fatty acid ratios in brain PLs of 2nd generation rats. The expeimental diets consisted of 10% fat(by wt), which were computer- searched mixed oil('M') with P/M/S ratio, 1 : 1.4 : 1 and $\omega$6/$\omega$3 ratio, 6 : 1 and safflower oil('S') poor in $\omega$3 fatty acids. The experimental diets were started 3-4 wks prior to conception. During the lactation period, the feeding mothers were switched 1 wk after birth and provided the pups for 2 wks with milk which had compositions different from that of their natural mother. The same diet as their mothers was provided from weaning to 9 wks of age. The 'M'and 'S' rats were again subdivided into MM, MS, SS, SM rats according to diet which their lactating mothers were fed from the begining of the experiment. The relative percentage of P/M/S fatty acids in brain PLs in all experimental groups converged to a very similar value at 9 wks of age, indicating the existence of a control mechanism for the degree of fatty acids, unsaturation. The $\omega$3/$\omega$6 fatty acid ratios of brain PLs converged to about 1.0 in MM & SM groups and to 0.7 in SS & MS groups, suggesting also the existence of some balance between $\omega$3 and $\omega$6 fatty acids in developing rat brain. The concentrations of $\omega$3 fatty acids, especially DHA, in the SM group were increased and became similar to those in MM group at 9 wks of age. The increase in DHA of brain PLs was counterbalanced b)r a decrease in 22 5$\omega$6. Therefore, the ratios of 22 : 6$\omega$6/22 : 5$\omega$6 were higher in both MM & SM groups than those of SS & MS groups at 9 wak of age. Although dietary $\omega$3 and $\omega$6 fatty acids affected 22 : 6$\omega$S and 22 : 5$\omega$6 contained in rat brain PLs reciprocally, the relative percentage of AA did not appear to be significantly influenced by the diet in all groups at 9 wks of age, suggesting that a mechanism for the maintenance of a certain level of AA in brain PLs exists. In conclusion, the $\omega$3/$\omega$6 fatty acid and 22 : 6$\omega$3/22 : 5$\omega$6 ratios, but not P/M/S ratio, of rat brain PLs were affected by the postnatal dietary changes. Futher studies are required to clarify the mechanism(S) of ensuring a certain level of DHA and of maintaining a similar level of AA in rat brain PLs after. weaning(9 wk) regardless of prenatal and postnatal dietary changes. (Korean J Nutrition 31(5) : 897-905, 1998)
Kim, Jae Kwang;Jin, Hyun Seong;Han, Myung Ki;Kim, Bong Seong;Cha, Choong Hwan;Park, Kie Young
Clinical and Experimental Pediatrics
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v.52
no.2
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pp.167-175
/
2009
Purpose : This study has been conducted to analyze whether the biochemical nutrition indexes might be useful and effective for evaluating the nutrition states of children. Methods : We evaluated 269 children, aged 3-9 years old, who had visited Gangneung Asan Hospital for elective surgery from January 2006 to December 2007, and examined their anthropometric and preoperative laboratory data with retrospective analysis. The children were classified into underweight, normal weight, overweight, and obese groups according to body mass index (BMI). The biochemical nutrition indexes (total lymphocyte count (TLC), hemoglobin, hematocrit, serum albumin, cholesterol, et al) of each group were then analyzed statistically. Results : None of the groups showed statistically significant differences in TLC. Serum albumin decreased significantly in the underweight group. Red blood cell (RBC) count, hemoglobin, hematocrit, and serum total cholesterol in the obese group were higher than in the normal weight group. None of the groups showed statistically significant increase in mean corpuscular volume or mean corpuscular hemoglobin, and it seems that the increase of hemoglobin and RBC count in the overweight and obese groups is due to the enhancement of erythropoiesis rather than iron metabolism. However, in females, almost all nutrition indexes except albumin were statistically significantly poor. Conclusion : Serum albumin, total cholesterol, RBC count, hemoglobin, and hematocrit were useful as nutrition indexes. However, except for albumin, these indexes were significantly poor for females. More control studies are needed to confirm the effectiveness of biochemical indexes for evaluating the nutritional state of children.
The growth of B. bifidum was promoted by natural products bearing antioxidative capacity and mixed combined two, three and four kinds of them. B. bifidum was expressed a good growth by Nelumbo nuclfera gaertner, Corni fructus, Beiamcanda chinensis, alone, and two mixed combinations were composed of Nelumbo nuclfera gaertner and Corni fructus, Nelumbo nuclfera gaertner and Beiamcanda chinensis, Nefumbo nuclfera gaertner and Theae folium, three mixed combinations were oraganized with Nelumbo nuclfera gaertner, Corni fructus and Theae folium, Nelumbo nuclfera gaertner, Corni fructus and Beiamcanda chinensis, Nelumbo nuclfera gaertner, Theae folium and Beiamcanda chinensis, and four mixed combinations were formed with Nelumbo nuclfera gaertner, Theae folium, Beiamcanda chinensis aud Corni fructus, Theae folium, Beiamcanda chinensis, Corni fructus and Glycyrrhizae radix, Nelumbo nuclfera gaertner, Corni fructus, Teae folium and Glycyrrhizae radix, and Nelumbo nuclfera gaertner, Corni fructus, Beiamcanda chinensis and Glycyrrhizae radix. These few mixed combinations promoted cell growth by 2.6 times than that of control, and its antioxidative capacity was also 5.6 times higher, and the ratio of elimination of hydroxyl radical was more than 80% in each dilution rate. As these combinations of natural products could activate some parts of body, they might be applied to pharmaceuitcal applications, functional foods, also expected to multifunctional fermentative beverages.
Purpose: This study was designed to evaluate long-term results in terms of failure, survival and voice preservation after radiation therapy for early glottic cancer. Materials and Methods: From February 1988 to December 2003, 70 patients with early glottic cancer were treated with radiation therapy at Keimyung University Dongsan Medical Center. Patient age distribution was from 39 to 79 years, with a median age of 62 years. All patients had squamous cell carcinoma. According to the TNM stage, 58 patients had stage I disease, 12 patients had stage II disease; 67 patients were male. The laryngeal area was irradiated with the use of bilateral opposing fields with/without a wedge filter with 6 MV photons at a total dose of $54{\sim}70.2$ Gy in $1.8{\sim}2.2$ Gy fractions over $6{\sim}8$ weeks. We delivered a median radiation dose of 60 Gy for stage I patients and a median radiation dose of 66 Gy for stage II patients. Salvage surgery was performed in patients with local recurrence. The voice preservation rate was analyzed after all treatments including salvage surgery. Follow-up periods were from 13 to 180 months, with a median follow-up period of 77.5 months. The survival rate was analyzed by the use of the Kaplan Meier method and log rank test. A comparison of two groups was performed with the use of the chi-squared test. Results: The local control rate was 98.5% (69/70). The five-year-overall survival rate was 93.9%. The five-year disease free survival rate (5YDFS) was 84.1% and the 5YDFS after radiation and salvage surgery was 92.8%. According to stage, the 5YDFS was 93.1% and 91.7% for stage I and stage II respectively. Thirteen patients (18.5%) had local failure with 24 months of median time to local failure and nine patients received salvage surgery; however, four patients were lost to follow-up after a diagnosis of recurrence. Only two patients died due to a distant metastasis at 33 months and 71 months after radiation therapy, respectively. Nine patients died due to other diseases with a median time of 73 months. There were no severe acute or chronic complications after radiation therapy. Voice preservation was ultimately achieved in 88.5% (62/70) of patients. Conclusion: We considered that radiation therapy was effective and we achieved excellent survival and voice preservation in early laryngeal cancer. The use of radiation therapy should be the first choice for the treatment of early glottic cancer.
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