• Title/Summary/Keyword: Immunological Effects

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Studies on Constituents of the Higher Fungi of Korea (LIV) Antitumor Components of Favolus alveolarius

  • Chang, Jae-Bum;Park, Wan-Hee;Choi, Eung-Chil;Kim, Byong-Kak
    • Archives of Pharmacal Research
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    • v.11 no.3
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    • pp.203-212
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    • 1988
  • To find antitumor components from the higher fungi of Korea, the mycelia of Favolus alveolarius (Fr.) Quelet were cultured in a liquid medium. The cultured mycelia were extracted with hot water twice, and a high molecular weight fraction was obtained by adding two volumes of ethanol to the extract. Two grams of Fraction A were obtained by dialyzing it. It was further separated into four fractions by gel filtration with Sepharose CL-4B, and they were designated Fractions B, C, D, and E. The results of the antitumor test showed that Fractions A, B, C, D and E had tumor inhibition ratios of 92.3, 78.5, 59.6, 77.4 and 62.2%, respectively. Anthrone test was carried out to determine the contents of total polysaccharide of the five fractions, and they had 46.3, 27.3, 65.3, 64.6, and 46.1%, respectively. The contents of the total protein of the five fractions were 29.4, 13.9, 14.3, 14.3, and 29.1%, respectively. Monosaccharide subunits of each fraction were analyzed with gas chromatography, and glucose, xylose, mannose, galactose and fucose were identified. Fraction A was examined for immunological effects. It increased the count of hemolytic plaque forming cells 12.8 times to that of the control group, and the population of macrophage in peritoneal cavity 3.2 times to that of the control group.

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Comparison Study on Changes of Antigenicities of Egg Ovalbumin Irradiated by Electron Beam or X-Ray

  • Kim, Mi-Jung;Lee, Ju-Woon;Sung, Nak-Yoon;Kim, Su-Min;Hwang, Young-Jung;Kim, Jae-Hun;Song, Beom-Seok
    • Food Science of Animal Resources
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    • v.34 no.5
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    • pp.570-575
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    • 2014
  • This study was conducted to compare the effects of two forms of radiation (electron and X-ray; generated by an electron beam accelerator) on the conformation and antigenic properties of hen's egg albumin, ovalbumin (OVA), which was used as a model protein. OVA solutions (2.0 mg/mL) were individually irradiated by electron beam or X-ray at the absorbed doses of 0 (control), 2, 4, 6, 8, and 10 kGy. No differences between the two forms of radiation on the structural properties of OVA were shown by spectrometric and electrophoretic analyses. The turbidity of OVA solution increased and the main OVA bands on polyacrylamide gels disappeared after irradiation, regardless of the radiation source. In competitive indirect enzyme-linked immunosorbent assay, OVA samples irradiated by electron beam or X-ray showed different immunological responses in reactions with monoclonal and polyclonal antibodies (immunoglobulin G) produced against non-irradiated OVA. The results indicate that electron beam irradiation and X-ray irradiation produced different patterns of structural changes to the OVA molecule.

Estimation of Genetic Parameters for Daily Milk Yield, Somatic Cell Score, Milk Urea Nitrogen, Blood Glucose and Immunoglobulin in Holsteins

  • Ahn, B.S.;Jeon, B.S.;Kwon, E.G.;Khan, M. Ajmal;Kim, H.S.;Ju, J.C.;Kim, N.S.
    • Asian-Australasian Journal of Animal Sciences
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    • v.19 no.9
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    • pp.1252-1256
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    • 2006
  • This study estimated the effects of parity (1-3) and stage of lactation (early, mid and late) on daily milk yield (DMY), somatic cell score (SCS), milk urea nitrogen (MUN), blood glucose, and immunoglobulin G (IgG), their heritabilities and genetic correlations between them in Holsteins (n = 200). Means and standard deviations of DMY, SCS, MUN, blood glucose, and IgG in the experimental herd were $23.35{\pm}7.75kg$, $3.81{\pm}2.00$, $13.99{\pm}5.68mg/dl$, $44.91{\pm}13.12mg/dl$, and $30.36{\pm}6.72mg/ml$, respectively. DMY was the lowest in first parity, and in late lactation. SCS increased with parity; however, it was lowest in mid-lactation. MUN was lowest in first parity, and no difference was noted across stage of lactation. Blood glucose was similar between parities, however the highest blood glucose was observed during mid lactation. IgG level was significantly different between first and second parity; however, stage of lactation did not affect its level. Heritability of DMY was 0.16. Its genetic correlations with SCS and with blood glucose were -0.67 and 0.98, respectively. Heritability of SCS was 0.15. Genetic correlations of SCS with MUN, glucose, and IgG were -0.72, -0.59, and 0.68, respectively. Heritability of MUN was estimated to be 0.39 and had a genetic correlation of -0.35 with IgG. Heritabilities of blood glucose and IgG were 0.21 and 0.33, respectively. This study suggested that MUN, blood glucose and IgG could be considered important traits in future dairy selection programs to improve milk yield and its quality with better animal health and welfare. However, further studies are necessary involving more records to clarify the relationship between metabolic and immunological traits with DMY and its quality.

A Current Research Insight into Function and Development of Adjuvants (면역보조제의 작용 및 개발)

  • Sohn, Eun-Soo;Son, EunWha;Pyo, SuhkNeung
    • IMMUNE NETWORK
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    • v.4 no.3
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    • pp.131-142
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    • 2004
  • In recent years, adjuvants have received much attention because of the development of purified subunit and synthetic vaccines which are poor immunogens and require adjuvants to evoke the immune response. Therefore, immunologic adjuvants have been developed and testing for most of this century. During the last years much progress has been made on development, isolation and chemical synthesis of alternative adjuvants such as derivatives of muramyl dipeptide, monophosphoryl lipid A, liposomes, QS-21, MF-59 and immunostimulating complexes (ISCOMS). Biodegradable polymer microspheres are being evaluated for targeting antigens on mucosal surfaces and for controlled release of vaccines with an aim to reduce the number of doses required for primary immunization. The most common adjuvants for human use today are aluminum hydroxide and aluminum phosphate. Calcium phosphate and oil emulsions have been also used in human vaccination. The biggest issue with the use of adjuvants for human vaccines is the toxicity and adverse side effects of most of the adjuvant formulations. Other problems with the development of adjuvants include restricted adjuvanticity of certain formulations to a few antigens, use of aluminum adjuvants as reference adjuvant preparations under suboptimal conditions, non-availability of reliable animal models, use of non-standard assays and biological differences between animal models and humans leading to the failure of promising formulations to show adjuvanticity in clinical trials. The availability of hundreds of different adjuvants has prompted a need for identifying rational standards for selection of adjuvant formulations based on safety and sound immunological principles for human vaccines. The aim of the present review is to put the recent findings into a broader perspective to facilitate the application of these adjuvants in general and experimental vaccinology.

Biological effects of dietary probiotics on blood characteristics in Hanwoo heifers subjected to lipopolysaccharide (LPS) challenge

  • Park, Bo Hye;Kim, Ui Hyung;Jang, Sun Sik;Yang, Seung Hak;Lee, Eun Mi;Kang, Dong Hun;Kwon, Eung Gi;Chung, Ki Yong
    • Korean Journal of Agricultural Science
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    • v.43 no.5
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    • pp.818-827
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    • 2016
  • This study hypothesized that dietary feed additive containing probiotics alter either immune-related serum substances or serum metabolites in Hanwoo heifers. A probiotic treatment was given at 0.5% top-dressing of concentrate diet for 6 months. The change of immunological indicators in the blood was analyzed under LPS (Lipopolysaccharide) challenge. One day before administration of LPS, all heifers were fitted with an indwelling jugular vein catheter for serial blood collections. Both a serum tube and an EDTA-coated tube were collected at 30-min intervals from - 2 to 8 hours relative to the LPS challenge at time 0 ($1{\mu}g/kg$ of BW). Serum was used for analyzing albumin (ALB), glucose (GLU), total protein (TP), triglycerides (TG), phosphorus (IP), and non-esterified fatty acids (NEFA). Plasma was used for analyzing white blood cell (WBC), red blood cell (RBC), platelet (PLT) and inflammation-related factors (NE, LY, MO, EO, BA, Hb, HCT, MCV, MCH, MCHC, RDW, MPV). There were significant differences in ALB, GLU, TG, IP, and NEFA concentration with the passage of hours post challenge (p < 0.05). The level of ALB, GLU, TG, and IP showed significant difference (p < 0.05) between treatments. However, none of the data showed interaction between time and treatments (p > 0.05). The level of WBC, EO, LY, and MO were reduced after LPS challenge (p > 0.05). In conclusion, LPS challenge after dietary supplementation of probiotics changed the levels of both serum metabolites and inflammation-related factors. The increase of GLU and TG indicated a probiotics-positive response under LPS challenge (p < 0.05).

Breastfeeding and its Relationship with Reduction of Breast Cancer: A Review

  • Franca-Botelho, Aline Do Carmo;Ferreira, Marina Carvalho;Franca, Juliana Luzia;Franca, Eduardo Luzia;Honorio-Franca, Adenilda Cristina
    • Asian Pacific Journal of Cancer Prevention
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    • v.13 no.11
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    • pp.5327-5332
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    • 2012
  • In this review, we describe the patterns of known immunological components in breast milk and examine the relationship between breastfeeding and reduced risk of breast cancer. The top risk factors for breast cancer are a woman's age and family history, specifically having a first-degree relative with breast cancer. Women that have a history of breastfeeding have been shown to have reduced rates of breast cancer. Although the specific cause has not been elucidated, previous studies have suggested that breastfeeding reduces the risk of breast cancer primarily through two mechanisms: the differentiation of breast tissue and reduction in the lifetime number of ovulatory cycles. In this context, one of the primary components of human milk that is postulated to affect cancer risk is alpha-lactalbumin. Tumour cell death can be induced by HAMLET (a human milk complex of alpha-lactalbumin and oleic acid). HAMLET induces apoptosis only in tumour cells, while normal differentiated cells are resistant to its effects. Therefore, HAMLET may provide safe and effective protection against the development of breast cancer. Mothers should be encouraged to breastfeed their babies because the complex components of human milk secretion make it an ideal food source for babies and clinical evidence has shown that there is a lower risk of breast cancer in women who breastfed their babies.

In Vitro Effects of Female Sex Hormones on Collagenase Activity of Gingival Fibroblast and Periodontal Ligament Fibroblast (여성 호르몬의 변화가 치은 섬유아세포와 치주인대세포의 교원질 분해 효소의 활성에 미치는 영향)

  • Sin, Ji-Yearn;Lee, Chul-Woo;Han, Soo-Boo
    • Journal of Periodontal and Implant Science
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    • v.29 no.1
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    • pp.31-40
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    • 1999
  • Many factors may affect periodontal changes during the physiologic conditions of woman(e.g. puberty, menstrual cycle, pregnancy, menopause). Recently many research has focused on the immunological changes of host, but the exact mechanism is not clear. Collagen is a major constituent of periodontium, and collagenase specifically digests the collagen and plays a role in destruction of periodontal tissue. So, I suppose that it participates with the cytokines in the inflammation of gingiva and vascular response during the changes of female sex hormones. Because there are some evidences of the existence of the receptors of estrogen and progesterone in the gingiva, it may be a target tissue of female sex hormones. In this experiment, gingival fibroblast and periodontal ligament cell were cultured in the presence of various concentrations of estrogen or progesterone corresponding to the menstrual cycle and pregnancy. Collagenase activity of the supernatant of culture media was determined by Spectrophotometric collagenase assay. The enzyme activity was calculated by the % decrease of the coated collagen. 1. The estrogen at both concentrations had no effect on the activity of collagenase of the gingival fibroblast. 2. The progesterone had some effect on the collagenase activity of the gingival fibroblast at low and high concentration of menstrual cycle, and elevated the enzyme activity at all range of pregnancy concentrations. 3. In periodontal ligament cells, estrogen elevated the enzyme activity at the early pregnancy concentration and progesterone elevated at the concentration just before menstruation. In this experiment, pregesterone elevated the collagenase activity of gingival fibroblast and periodontal ligament cells. But the mechanism of the up-regulation of the enzyme activity was not confirmed. The more experiments of direct effect of progesterone on gingival at the molecular level(e.g. northern blot analysis) can reveal the exact mechanism.

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The Effect of Bangpungtongsung-San on Model of Allergic Rhinitis (알러지성 비염 병태 모델에 대한 방풍통성산(防風通聖散)의 항알러지 효과)

  • Kim, Hee-Jeong;Park, Owe-Suk;Kim, Keoo-Seok;Cha, Jae-Hoon;Kim, Yoon-Bum
    • The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
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    • v.19 no.1
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    • pp.21-30
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    • 2006
  • Background and Objective : Allergic rhinitis is a IgE-mediated hypersensitive reaction at nasal mucosa. In oriental medicine, Bangpungtongsung-San is clinically widely used for the treatment of the allergic rhinitis. The objective of this study is to investigate the effects of Bangpungtongsung-San on allergic rhinitis experimentally. Material and Methods : BALB/c mouse were divided into there groups: intact, control, experimental groups. Control and experimental group were induced allergic rhinitis by Ovalbumin as· the method of Levin and Vaz. Experimental group was orally administered the Bangpungtongsung-San for 28days. Total IgE, Interleukin-4, Interleukin-5 and $Interferon-{\gamma}$ were measured at three groups. The statistical significance was examined by Independent Samples T test. Results : 1. The experimental group shows increase of $IFN-{\gamma}$ by 17% compared with control group but there was no statistical significance. 2. The experimental group shows increase of IL-4 and IL-5 compared with control group but there was no statistical significance. 3. The experimental group shows increase of Total IgE and diminution of OVA-specific IgE by 32% compared with control group but there was no statistical significance. Conclusion : The effect of Bangpungtongsung-San on allergic rhinitis is not immunological but seems to be anti-imflammatory and anti-stress effect.

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Immunomodulatory Effects of Dioscoreae Rhizome Against Inflammation through Suppressed Production of Cytokines Via Inhibition of the NF-${\kappa}B$ Pathway

  • Kim, Seulah;Shin, Seulmee;Hyun, Bobae;Kong, Hyunseok;Han, Shinha;Lee, Aeri;Lee, Seungjeong;Kim, Kyungjae
    • IMMUNE NETWORK
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    • v.12 no.5
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    • pp.181-188
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    • 2012
  • Dioscoreae Rhizome (DR) has been used in traditional medicine to treat numerous diseases and is reported to have anti-diabetes and anti-tumor activities. To identify a bioactive traditional medicine with anti-inflammatory activity of a water extract of DR (EDR), we determined the mRNA and protein levels of proinflammatory cytokines in macrophages through RT-PCR and western blot analysis and performed a FACS analysis for measuring surface molecules. EDR dose-dependently decreased the production of NO and pro-inflammatory cytokines such as IL-$1{\beta}$, IL-6, TNF-${\alpha}$, and $PGE_2$, as well as mRNA levels of iNOS, COX-2, and pro-inflammatory cytokines, as determined by western blot and RT-PCR analysis, respectively. The expression of co-stimulatory molecules such as B7-1 and B7-2 was also reduced by EDR. Furthermore, activation of the nuclear transcription factor, NF-${\kappa}B$, but not that of IL-4 and IL-10, in macrophages was inhibited by EDR. These results show that EDR decreased pro-inflammatory cytokines via inhibition of NF-${\kappa}B$-dependent inflammatory protein level, suggesting that EDR could be a useful immunomodulatory agent for treating immunological diseases.

Effects of Baekgumhwan administration on immune-function in ICR mice stressed by electric footshock (백금환(白金丸)의 경구 투여가 전기자극 스트레스를 받은 mouse의 비장에 존재하는 면역 세포 분획과 사이토카인 생성에 미치는 영향)

  • Joo, Seung-Gyun;Kim, Geun-Woo;Koo, Byung-Soo;Shim, Sang-Min
    • Journal of Oriental Neuropsychiatry
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    • v.13 no.1
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    • pp.39-52
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    • 2002
  • The present experiments were designed to study the influence of Baekgumhwan on immune function of ICR mice under stress condition. Baekgumhwan was orally administered to the mice for 15days. on the 11th day the mice subjected to electric footshock for 5days(2 session a day, 11 footshocks a 31 min-session). B/T cell populations in splenocytes were studied by FACS analysis and cytokines($IFN-{\gamma}$ rand IL-10) production of the mouse splenocytes treated with PHA were studied by sandwich ELISA assay on the 15th day. The results were as follows. 1. After electric footshock, mice became sluggish and crowded to one side of the cage. Increased B/T cell populations in splenocytes were observed. These results confirm that electric footshock caused stress inducing immunological and behavioral changes in ICR mice. 2. Baekgumhwan administration without stress increase B cell populations in splenocytes, but T cell populations and cytokines($IFN-{\gamma}$ and IL-10) production of the mouse splenocytes treated with PHA maintain as similar levels as in the normal group. 3. Baekgumhwan administration with stress significantly antagonized the effect of electric footshock on behavior, increased B cell populations in splenocytes, so maintain as similar levels as in the normal group. cytokines($IFN-{\gamma}$ rand IL-10) production of the mouse splenocytes treated with PHA maintain as similar levels as in the normal group and T cell populations in splenocytes were increased as stress control.

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