Lee Hyun Joo;Suh Hyun Suk;Kim Jun Hee;Kim Chul Soo;Kim Sung Rok;Kim Re Hwe
Radiation Oncology Journal
/
v.14
no.1
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pp.17-23
/
1996
Purpose : To evaluate the role of combination therapy of external radio-therapy and chemotherapy in the management of advanced esophageal cancer as a primary treatment compared with radiation therapy alone. Materials and Methods : A retrospective review of evaluable 55 esophageal cancer patients referred to the Department of Therapeutic Radiology, Paik Hospital for the external radiotherapy between Jul, 1983 and Dec. 1994 was undertaken. Combined therapy patients (A group) were 30 and radiation alone patients (B group) were 25. Median age was 60 years old in A group (ranges : 42-81) and 65 years old in B group (ranges : 50-81). The male patients were 53. The fifty patients had squamous cell carcinomas. Radiation doses of 2520-6480c0y were delivered over a period of 4-7weeks, using 4MV LINAC. Chemotherapy was administered in bolus injection before, after, or during the course of external radiotherapy. The local control rate and patterns of failure according to both treatment modalities and 1, 2 year survival rates according to prognostic factors (stage, tumor length, radiation dose etc.) were analysed. Resuts : Median follow up Period was 7 months (range : 2-73 months). Median survival was 7.5 months (20 days-29 months) in A group and 5 months (20 days-73 months) in B group. The 1, 2 YSRs were $26.7\%$, $8.9\%$ in A group, $12.7\%$, $4.3\%$ in B group (p>0.05), respectively. The 1, 2 YSRs according to stage(II/III), tumor length (5cm more or less). radiation dose (5000cGymore or less) of A and B group were analyzed and the differences of survival rates of both treatments were not statistically significant. But among group B, patients who received 5000cGy or more showed significant survival benefits (p<0.05). The treatment response rates of A and B group were $43.8\%$. $25.0\%$, respectively. Complete response rate of $25.0\%$ in A and $8.3\%$ in B were achieved. The local failure and distant metastsis were $52.4\%$. $23.8\%$ in A group, $64.3\%$, $14.3\%$ in 8 group, respectively. The combination therapy revealed more frequent leukopenia and nausea/vomiting than radiation alone group, but degree of side effects was only mild to moderate. Conclusion : The combined external radiotherapy and chemotherapy for advanced esophageal cancer appears to improve the response rate, local control rate and survival rate, but the improvement was not statistically significant. The side effects of combined modalities were mild to moderate without significant morbidity. Therefore it may be worthwhile to continue the present combined external radiotherapy and chemotherapy in the management of advanced esophageal cancer to confirm our result.
Ipfencarbazone is a herbicide of the tetrazolinone class, and is believed to be an inhibitor of very long chain fatty acids (VLCFAs), which control cell division in weeds. The objective of this study was to develop and validate an official analytical method for ipfencarbazone determination in agricultural products. The ipfencarbazone residues in agricultural products were extracted with acetone, partitioned with n-hexane, and then purified through silica SPE cartridge. Finally, the analyte was quantified by gas chromatograph-electron capture detector (GC-ECD) and confirmed with gas chromatograph/mass spectrometer(GC/MS). The linear range of ipfencarbazone was 0.01 to 1.0 mg/L with the coefficient of determination ($r^2$) of 0.9999. The limit of detection (LOD) and quantification (LOQ) was 0.003 and 0.01 mg/kg, respectively. In addition, average recoveries of ipfencarbazone ranged from 80.6% to 112.3% at the different concentration levels LOQ, 10LOQ and 50LOQ, while the relative standard deviation was 2.2-8.6%. All values were consistent with the criteria ranges requested in the CODEX guidelines. Furthermore, and inter-laboratory study was conducted to validate the method. This proposed method for determination of ipfencarbazone residues in agricultural products can be used as an official analytical method.
Journal of the Korean Society of Food Science and Nutrition
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v.40
no.12
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pp.1662-1667
/
2011
Anthocyanins belong to a group of flavonoid compounds and are well known for their various health beneficial effects, which include antioxidative activities. Among them, the major anthocyanins isolated from seed coat of black soybean (Glycine max L.) were previously characterized as glycosides containing glucopyranose. Asthma is an allergic disease that is strongly associated with various immune cells, including basophils and mast cells. Eosinophils, basophils, and mast cells play important roles in allergic asthma through the release of inflammatory mediators such as asthma-specific T-helper 2 (Th2) cytokines and subsequent amplification of asthma symptoms via degranulation. Rat basophilic leukemia RBL-2H3 cells are the most common in vitro models for evaluating allergic reactions. In this study, we examined the effects of anthocyanin from seed coat of black soybean on antigen-stimulated degranulation and Th2 cytokine production in RBL-2H3 cells. Cell degranulation was evaluated by measuring the release of ${\beta}$-hexosaminidase. ${\beta}$-Hexosaminidase release and Th2 cytokine production in RBL-2H3 cells was much higher upon stimulation with IgE-antigen complex than those in untreated control cells. Anthocyanins significantly suppressed IgE-antigen complex-induced degranulation of RBL-2H3 cells and inhibited IgE-antigen complex-mediated interleukin (IL)-4, IL-13, and tumor necrosis factor ${\alpha}$ (TNF-${\alpha}$) production in RBL-2H3 cells. These findings suggest that anthocyanins from seed coat of black soybean effectively inhibit allergic reactions and may have beneficial effects against allergic asthma.
Objectives: The present study is to observe the skin-regeneration, anti-wrinkle, whitening and skin moisturizing effects of Cheongsangbangpung-tang (CSBPT) with cytotoxicity. Methods: In the present study, cytotoxicity of CSBPT lyophilized aqueous extracts (yield=18.71%) was experimented against human normal fibroblast cells and B16F10 murine melanoma cells by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium Bromide (MTT) assay, and skin regeneration and anti-wrinkle effects were also showed through the assay of collagen type I synthesis by an enzyme immunoassay (EIA) kit as comparing with transforming growth factor (TGF)-${\beta}1$, hyaluronidase, collagenase and matrix metalloproteinase (MMP)-1 inhibitory assays as comparing with oleanolic acid (OA), and elastase inhibitory effects as comparing with phosphoramidon disodium salt (PP). In addition, whitening effects of CSBPT were observed by tyrosinase inhibitory assay and melanin formation test in B16/F10 melanoma cells as comparing with arbutin, and skin moisturizing effects were measured through mouse skin water contents test, respectively. Results: No CSBPT treatment related cytotoxic effects were demonstrated against human normal fibroblast cells and B16/F10 murine melanoma cells. CSBPT concentration-dependent increased collagen type I synthesis at human normal fibroblast cells. It also effectively suspreessed hyaluronidase, collagenase, elastase and MMP-1 activities, which were enzymes that related to declining of ECM and formation of wrinkle. CSBPT supressed B16/F10 melanoma cells's melanin productions with tyrosinase activity, which was an enzyme connected with melanin formation, and dose-dependent and significant increases of skin water contents were detected in CSBPT treated mouse skin as compared with vehicle control skins. Conclusions: CSBPT showed favorable and enough skin regeneration, anti-wrinkle, whitening and skin moisturizing effects at least in a condition of this experiment. However, more detail mechanism and in vivo skin protective efficacy studies should be conducted in future with the screening of the biological active compounds in individual herbs of Cheongsangbangpung-tang.
Journal of the Korean Society of Food Science and Nutrition
/
v.46
no.8
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pp.1012-1017
/
2017
Mesembryanthemum crystallinum (Family: Aizoaceae) is an annual plant consisting of ice crystal-shaped bladder cells, which is responsible for its common name ice plant. This study investigated biological activities according to general components and extraction solvent in order to examine the functionality of ice plant. The total content of free amino acids was 32.57 mg/g, including 4.64 mg/g of L-alanine as the most abundant and 2.60 mg/g of ${\gamma}$-aminobutyric acid. Regarding angiotensin converting enzyme inhibitory activities of solvent fractions of ice plant, ethyl acetate fraction and chloroform fraction showed activities of $33.17{\pm}3.20{\sim}88.19{\pm}3.20%$ and $23.72{\pm}2.89{\sim}86.78{\pm}2.24%$, respectively, similar to $Captopril^{(R)}$ ($19.51{\pm}3.44{\sim}84.72{\pm}1.06%$) and $Enalapril^{(R)}$ ($24.93{\pm}1.12{\sim}91.32{\pm}3.62%$) as positive control groups. Regarding inhibition of lipid droplet production in 3T3-L1 preadipocytes by ice plant, anti-adipogenic activities were $53.00{\pm}0.45{\sim}65.75{\pm}0.31%$ and $44.16{\pm}0.29{\sim}63.32{\pm}0.36%$ in the ethyl acetate fraction and butanol fraction, respectively, showing the lowest lipid droplet production. The chloroform fraction and hexane fraction showed activities of $38.33{\pm}0.09{\sim}56.55{\pm}0.50%$ and $31.17{\pm}0.50{\sim}55.10{\pm}1.93%$, respectively, whereas the water fraction showed activity of $26.32{\pm}2.27{\sim}49.48{\pm}0.05%$. Therefore, all solvent fractions inhibited fat accumulation of 3T3-L1 preadipocytes according to treatment concentration. According to the results above, it would be possible to utilize ice plant as a new health functional material.
Journal of the Society of Cosmetic Scientists of Korea
/
v.42
no.4
/
pp.421-432
/
2016
In order to find new functional materials for the cosmetics application, we investigated anti-inflammatory and whitening effects of the Protaetia brevitarsis seulensis (P. brevitarsis) extracts, which were prepared by the various oriental conversion methods, as follows; fresh, roasted one time, roasted two times, roasted three times, and steamed. 2,2-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging activities of the various solvent extracts (80% ethanol, 50% ethanol, ethyl acetate, hexane) of P. brevitarsis extracts were 85.5, 22.4, 37.0 and 19.4% respectively. The 80% ethanol extract with the highest antioxidant activity was used for all experiments. In case of antioxidant activity test of the extracts, all the extracts showed the activities in concentration dependent manner regardless of the sample preparation methods. Superoxide dismutase-like (SOD-like) activities of the extracts roasted three times and steamed were 62.9 and 55.9%, respectively in $500{\mu}g/mL$. Effects of extracts on the inflammation of RAW 264.7 cell induced by lipopolysaccharide (LPS) showed decreasing tendency of $NO{\cdot}$ and prostaglandin $E_2$ ($PGE_2$) production; PBS fresh (38.0%), PBS roasted one time (41.0%), PBS roasted two times (69.8%), PBS roasted three times (70.1%), PBS steamed (78.5%). Intracellular tyrosinase and melanin biosynthesis inhibitory activities of the extracts were decreased in a concentration dependent manner. However, the fresh P. brevitarsis extracts without the oriental conversion method showed 90.7% decrease compared to the control group treated with ${\alpha}$-MSH alone at $500{\mu}g/mL$. Taken together, these results suggest the oriental conversion method can be applied in development of cosmetic materials in order to improve anti-inflammatory and whitening effects of the cosmetics products.
Purpose : Airways eosinophilia and increased IgE, characteristic features of asthma, result from a predominant Th2 response. In this study, we investigated the effect of CpG oligodeoxynucleotides (ODNs) on the inhibition of airways eosinophilia in mice with established airway inflammation. We also investigated the immunological mechanisms involved. Methods : Groups of BALB/c mice were sensitized intradermally with ovalbumin(OVA). At week 10, airway inflammation was induced by intranasal challenge of the mice with OVA. At week 14, the mice were challenged intranasally again with OVA in the presence and without the presence of CpG ODNs. Mice with saline administration served as negative controls. Bronchoalveolar lavage fluids(BALF) were obtained and eosinophils were counted. Th1 and Th2 cytokines in the spleen cell cultures were measured by ELISA. Serum OVA-specific IgE and IgG2a antibodies were also measured by ELISA. Results : BALF eosinophils were significantly inhibited in the CpG ODNs-treated mice(P<0.01). IgE and IgG2a levels increased significantly in both CpG ODNs-treated and untreated groups as compared to the negative control group; there was, however, no significant difference between the two groups four days after intranasal administration of CpG ODNs. Cytokine analysis revealed decreased production of IL-4, IL-5, and IL-13 and increased production of IL-12 in the CpG ODNs-treated group as compared to the untreated group. Interestingly, $IFN-{\gamma}$ levels were not upregulated in the CpG ODNs-treated group. Conclusion : CpG ODNs vaccination is a potentially useful approach for reversing airways eosinophilia in mice with established airways inflammation.
Song, So Hyang;Kim, Chi Hong;Kwon, Soon Seog;Kim, Young Kyoon;Kim, Kwan Hyoung;Moon, Hwa Sik;Song, Jeong Sup;Park, Sung Hak
Tuberculosis and Respiratory Diseases
/
v.58
no.2
/
pp.152-159
/
2005
Background : Exacerbations of chronic obstructive pulmonary disease (COPD) are thought to be associated with increased airway inflammation, and the $NF-{\kappa}B$ is known to be an indicator of cellular activation and of inflammatory mediator production. This study was undertaken to investigate the change of cytokine characteristics and $NF-{\kappa}B$ activity in induced sputum of COPD patients during exacerbation and recovery of the disease. Methods : Sputum induction was performed in 37 patients with COPD during exacerbation and during recovery and in 15 healthy subjects. Cell counts, levels of IL-6, IL-8 and $TNF-{\alpha}$ in induced sputum and NF-kB activity in macrophage of induced sputum were measured. Results : Patients with COPD showed significantly increased levels of IL-6, IL-8 and $TNF-{\alpha}$(p<0.01) and increased $NF-{\kappa}B$ activity in induced sputum(p<0.05) as compared with control subjects. Level of IL-8 during exacerbation of COPD decreased significantly during recovery(p<0.05). $NF-{\kappa}B$ activity and levels of IL-6 and $TNF-{\alpha}$ tended to be decreased during recovery, but not siginificantly. Conclusion : Activation of $NF-{\kappa}B$ and increased levels of IL-6, IL-8 and $TNF-{\alpha}$ were thought to be associated with pathogenesis and exacerbations of COPD.
Kim, Yong-Jin;Ku, Seung-Yup;Kim, Yoon-Young;Oh, Sun-Kyung;Kim, Seok-Hyun;Choi, Young-Min;Moon, Shin-Yong
Clinical and Experimental Reproductive Medicine
/
v.36
no.4
/
pp.265-274
/
2009
Objective: MicroRNAs (miR) are known to repress target genes at post-transcriptional level and play important roles in development and maturation of cell. However, the expression profiles of miR during ovarian follicle maturation have not been fully elucidated. Here, we designed this study to investigate the expression profiles of miR in oocytes and granulose cells (G-cells) after in vitro culture according to gonadotropins and adding hCG. Methods: Ovaries from 12-day-old mice (C57BL6) were removed and preantral follicles were isolated and cultured in $20\;{\mu}L$-drop of culture media with supplementation of either rFSH, rLH, or rFSH+rLH. After their full maturation, follicles were incubated with rhCG and rEGF. RNA was isolated from oocytes and G-cells, and real-time PCR were performed with primers of miR known to be expressed in the mouse ovary (mmu-miR-16, -miR-27a, -miR-126, -miR-721). Results: FSH+LH group showed the highest ovulation and MII rates among gonadotropin groups. The profiles of miRs in oocytes and G-cells differed according to gonadotropin groups and adding hCG. The profiles of miRs showed divergent changes between oocytes and G-cells. Conclusion: miR expression profiles are altered by gonadotropins and supplementation of hCG during in vitro maturation of murine follicles. Target gene study must be necessary to validate these findings.
The effect of 2-deoxy-d-glucose (2-DDG) on $C_3H$ mouse fibrosarcoma(FSall) was studied. Metabolic status, especially for energy metabolism, was studied using in vivo $^{31}P$-MRS, proliferative capacity was observed on flow cytometry(FC) and growth rate was measured after transplantation of $10^6$ viable tumor cells in the dorsum of foot of $C_3Hf/Sed$ mice. One gram of 2-DDG Per kg of body weight was injected intraperitoneally on 12th day of implantation. Average tumor size on 12th day of implantion was $250mm^3$. Growth rate of Fsall tumor was measured by tumor doubling time and slope on semilog plot. After 2-DDG injection, growth rate slowed down. Tumor doubling time between tumor age 5-12 days was 0.84 days with slope 0.828 and tumor doubling time between tumor age 13-28 days was 3.2 days with slope 0.218 in control group. After 2-DDG injection, tumor doubling time was elongated to 5.1 days with slope 0.136. The effect of 2-DDG studied in vivo $^{31}P$-MRS suggested that the increase of phosphomonoester (PME) and inorganic phosphate (Pi) by increasing size of tumor, slowed down after 2-DDG injection. Flow cytometry showed significantly increased S-phase and $G_2+M$ phase fraction suggesting increased proliferative capacity of tumor cells in the presence of 2-DDG. Authors observed an interesting effect of 2-DDG on FSall tumor and attempt to utilize as an adjunct for radiotherapy.
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