• Title/Summary/Keyword: promoting growth

Search Result 1,440, Processing Time 0.034 seconds

Monoclonal Antibody Refolding and Assembly: Protein Disulfide Isomerase Reaction Kinetics

  • Park, Sun-Ho;Ryu, Dewey D.Y.
    • Biotechnology and Bioprocess Engineering:BBE
    • /
    • v.1 no.1
    • /
    • pp.13-17
    • /
    • 1996
  • The protein disulfide isomerase(PDI) reaction kinetics has been studied to evaluate its effect on the monoclonal antibody(MAb) refolding and assembly which accompanies disulfide bond formation The MAb in vitro assembly experiments showed that the assembly rate of heavy and light chains can be greatly enhanced in the presence of PDI as compared to the rate of assembly obtained by the air-oxidation. The reassembly patterns of MAb intermediates were identical for both with and without PDI, suggesting that the PDI does not determine the MAb assembly pathway, but rather facilitates the rate of MAb assembly by promoting PDI catalyzed disulfide bond formation. The effect of growth rate on PDI activities for MAb production has also been examined by using continuous culture system. The specific MAb productivity of hybridoma cells decreased as the growth rate increased. However, PDI activities were nearly constant for a wide range of growth rates except very high growth rate, indicating that no direct correlation between PDI activity and specific MAb productivity exists.

  • PDF

A Grey Correlation Analysis Method for Relationship of the Overseas M&A and Business Growth of Commercial Banks

  • LIU, Xiaohong
    • Korean Journal of Artificial Intelligence
    • /
    • v.7 no.1
    • /
    • pp.13-16
    • /
    • 2019
  • While the Chinese banks have started the impact of foreign banks. At the same time, rising pressure on foreign exchange reserves and appreciation of the renminbi has prompted Chinese banks to go abroad and diversify their risks. The financial crisis of 2008 has caused the continued turbulence of the major financial markets around the world, and the valuation of foreign financial institutions has been drastically shrinking, providing opportunities for Chinese banks to carry out overseas M&A. Based on the overseas M&A status of Chinese commercial banks, this paper sums up the characteristics of the overseas M&A. Then taking a series of overseas M&A conducted by ICBC from 2006 to 2011 as an example, it analyzes the relationship between M&A and performance growth using grey incidence model. The test shows: there is a positive correlation between both overseas M&A and interest rate differential with performance growth of ICBC, and overseas M&A transactions role in promoting the performance growth is significantly higher than the interest rate differential.

Fractionated Aged Black Garlic Extracts Enhance Growth of Anti-My-10 Hybridoma Cells and Production of IgG1 Antibody

  • Lee, Ji Young;Chung, Namhyun;Lee, Yong Kwon
    • Journal of Applied Biological Chemistry
    • /
    • v.57 no.1
    • /
    • pp.61-63
    • /
    • 2014
  • Aged black garlic (ABG) was extracted with 20% ethanol and water (crude extracts) and fractionated into three categories (>10, 3-10, and <3 kDa). The effect of crude extract supplements on anti-My-10 hybridoma cell growth and IgG1 antibody production was investigated in suspension culture with a chemically defined protein-free medium. We observed that supplementation of ABG to the cell culture medium stimulated anti-My-10 hybridoma cell growth and production of IgG1 antibody, particularly with fractionated ABG of low molecular weight. The stimulation depended upon the concentration and the size of the fractionated ABG. We also found that the growth-promoting activity was not correlated with high antibody production. These results suggest that fractionated ABG is a novel and promising alternative as an animal cell culture supplement.

Development and Test of Effectiveness of a Prenatal Parental Role Education Program (산전 어머니역할교육 프로그램 개발과 그 효과)

  • Kim, Tae-Im
    • Child Health Nursing Research
    • /
    • v.12 no.1
    • /
    • pp.104-113
    • /
    • 2006
  • Purpose: This study was conducted to develop and evaluate the effectiveness of a prenatal parental role education program. Methods: The participants were healthy primiparous women and their healthy newborn babies. 57 mother-infant diads(27 in the intervention group, 30 in the control group). For the intervention group, an additional 4 prenatal parental role education programs and 2 postnatal telephone calls(1st & 3rd week after birth) were provided. Data were analyzed by frequency, chi-square test, t-test and repeated measures ANOVA using SPSS PC+ 10.0 program. Results: Significant differences were found in self-confidence in maternal role performance, mother-infant interaction and infant physical growth between the two groups. This result indicate that the intervention program was effective in improving self-confidence in maternal role performance, mother-infant interaction and in facilitating infant physical growth. Conclusions: The prenatal parental role education program developed by the author was a very effective program in promoting maternal self-confidence, mother-infant interaction, and fostering infant's physical growth at 4 weeks after infant's birth.

  • PDF

Effects of Dietary Antimicrobial Agents, Probiotics or Yucca Extract on Urease Activity and Ammonia Production in the Chicken Intestine (사료중 항균제, 생균제 또는 유카 추출물이 닭의 장내 요소 분해효소 활성과 암모니아 생산에 미치는 영향)

  • 김규일;여진모
    • Korean Journal of Poultry Science
    • /
    • v.22 no.2
    • /
    • pp.105-115
    • /
    • 1995
  • The balance of microbial populations in the gastrointestinal (GI) tract of all warm-blooded animals is critical to the maintenance of health and resistance to disease. The composition of the populations can be altered by diet and environment, making the host animal susceptible to disease, and reducing growth rate and feed efficiency. Some feed additives including antimicrobial agents, prohiotics or yucca extract have been used to promote growth and feed utilization. There is evidence that part of growth-promoting effect of those feed additives results from the suppression of microbial urease activity or ammonia production in the GI contents of animals. Over 200 microbial species have been known to produce urease and the product of urea hydrolysis, ammonia, is toxic to animals. Carefully tested probiotics or other urease-suppressing agents can be a possible alternative to antimicrobial agents including antibiotics as growth promotants used for animals feeds.

  • PDF

Effect of Pour Into Soil and Spray on Leaves of Plant Growth Substances on the Root Out of Mulberry (식물생장물질의 토양관주와 엽면살포가 뽕나무의 발근에 미치는 영향)

  • 김문협
    • Journal of Sericultural and Entomological Science
    • /
    • v.20 no.1
    • /
    • pp.1-4
    • /
    • 1978
  • The root-out of mulberry saplings has been studied by pour into soil and spray on leaves of the plant growth substances. In addition, the effect of "Rutin", a kind of plant growth hormones has been also studied on promoting the rootability of mulberry scions by dipping the scions at the various concentrations. The results are summarized as follows: (1) It is likely to be effective on acceleration of the rootability resulting in increase of rooting ratio by pour into soil at the concentration of 1 ppm and 10 ppm NAA, 10 ppm and 100 ppm Rutin, and 5000 fold solution of Atonic, respectively (2) Growth of branch is only promoted by leaf spray of 0.5% urea, 0.005% and 0.01% Rutin, and 5000 fold solution of Atonic without increasing the root weight. (3) It seems that 0.05% of Rutin is of practical use, and 0.05% to 0.4% of "Rutin" accelerates the root-out of mulberry scions as well as NAA does.

  • PDF

Effect of Extrusion Processing and Steam Pelleting Diets on Pellet Durability, Water Absorption and Physical Response of Macrobrachium rosenbergii

  • Misra, Chandra Kanta;Sahu, N.P.;Jain, K.K.
    • Asian-Australasian Journal of Animal Sciences
    • /
    • v.15 no.9
    • /
    • pp.1354-1358
    • /
    • 2002
  • Two hundred and ten post-larvae (PL) of Macrobrachium rosenbergii (14.5-14.9 mg) were equally distributed in two experimental groups and fed with either steam cooked or extruded pellet for a period of 60 days. Physical evaluation and growth promoting effect of both the pellets were assessed. Significantly higher (p<0.05) water stability, absorption and protein efficiency ratio (PER) were recorded in extruded pellet than the steam cooked pellet. Nutrient loss was minimum in the extruded pellet for which lower feed conversion ratio (FCR) (p<0.05) was recorded in this group. However, weight gain, relative growth and specific growth rate (SGR) in both the groups were not significantly different (p>0.05). Although insignificant (p>0.05) but higher amylase activity was recorded in steam pellet fed group. Survival was not affected by feeding either of the diets.

Expression of PGDH Correlates with Cell Growth in Both Esophageal Squamous Cell Carcinoma and Adenocarcinoma

  • Yang, Guo-Tao;Wang, Juan;Xu, Tong-Zhen;Sun, Xue-Fei;Luan, Zi-Ying
    • Asian Pacific Journal of Cancer Prevention
    • /
    • v.16 no.3
    • /
    • pp.997-1000
    • /
    • 2015
  • Esophageal cancer represents the fourth most common gastrointestinal cancer and generally confers a poor prognosis. Prostaglandin-producing cyclo-oxygenase has been implicated in the pathogenesis of esophageal cancer growth. Here we report that prostaglandin dehydrogenase, the major enzyme responsible for prostaglandin degradation, is significantly reduced in expression in esophageal cancer in comparison to normal esophageal tissue. Reconstitution of PGDH expression in esophageal cancer cells suppresses cancer cell growth, at least in part through preventing cell proliferation and promoting cell apoptosis. The tumor suppressive role of PGDH applies equally to both squamous cell carcinoma and adenocarcinoma, which enriches our understanding of the pathogenesis of esophageal cancer and may provide an important therapeutic target.

Potential for Augmentation of Fruit Quality by Foliar Application of Bacilli Spores on Apple Tree

  • Ryu, Choong-Min;Shin, Jung-Nam;Qi, Wang;Ruhong, Mei;Kim, Eui-Joong;Pan, Jae-Gu
    • The Plant Pathology Journal
    • /
    • v.27 no.2
    • /
    • pp.164-169
    • /
    • 2011
  • Previous studies have addressed the management of phyllosphere pathogens by leaf and root-associated microbes. The present study evaluated the effect of the foliar application of three strains of Bacillus spp. on plant growth and fruit quality. The application of a bacilli spore preparation significantly improved leaf growth parameters such as leaf thickness and photosynthesis capacity, indicating that bacilli treatment directly promoted leaf growth. In addition, foliar treatment resulted in an improvement in the key indicators of fruit quality including water, glucose, and sucrose contents. The present results suggest that foliar spraying of beneficial bacilli is a potential treatment of wide application for the improvement of apple quality. Foliar application of bacilli preparation as effective plant growth-promoting rhizobacteria broadens the spectrum of their availability for orchard application.

Effect of some reagents added in culture media upon the mycelial growth of the Psallitoa Campestris (Psalliota Campestris의 균사생장(菌絲生長)에 미치는 무기염류(無機鹽類)의 영향(影響))

  • Yu, Tae-Jong
    • Applied Biological Chemistry
    • /
    • v.6
    • /
    • pp.57-59
    • /
    • 1965
  • According to the result of the observations on the effect of the reagents, $CuSO_4{\cdot}5H_2O$, $ZnSO_4{\cdot}7H_2O$ $MnSO_4{\cdot}4H_2O$, $HgCl_2$, upon the mycelial growth of psalliota campestris $HgCl_2$ showed the strongest effect on checking the mycelial growth $(,.008{\sim}0.01%)$ $CuSO_4{\cdot}5H_2O(0.030%)$, $ZnSO_4{\cdot}7H_2O(0.080%)$, came next and the $MnSO_4{\cdot}4H_2O(0.100%)$ was the weakest. Writer also found that showed the promoting effect of the mycelial growth in appropriate Concentration (at $0.015%\;CuSO_4{\cdot}5H_2O$, $0.030%ZnSO_4{\cdot}7H_2O$).

  • PDF