• Journal of Periodontal and Implant Science
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• 제32권4호
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• pp.847-855
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• 2002

It has been reported that Magnoliae cortex extract has antibacterial and antimicrobial activity against pathogenic microbes and Zea Mays L. extract is effective for improving gingival tissue health. The purpose of this study was to examine the anti-inflammatory and antimicrobial effects of Zea Mays L. and Magnoliac cortex extract mixtures through experimental peridontitis induced beagle dog model. Nine beagle dogs with experimentally induced periodontitis were selected. Baseline clinical indices which includes plaque index, gingival index, probing pocket depth, clinical attachment level, gingival fluid flow rate were recorded and microbial assays were done. Magnoliac cortex and Zea Mays L., mixed at 2:l ratio in 105mg capsular dosage, were taken by 3 capsule (Group I) or 6 capsule dosages (Group II) three times a day. After 4,8,12 weeks, clinical indices were recorded. All data of clinical indices were compared through one-way ANOVA with 95% confidence level. Clinical indices of group I and II showed significantly better results than those of control group. There were no significant differences between group I and II. In conclusion, it was confirmed that mixture of Magnoliae cortex and Zea May L. (mix ratio 2:1) possessed clinical improving effects to periodontitis.

• Journal of Periodontal and Implant Science
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• 제24권3호
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• pp.649-660
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• 1994

The purpose of this study was to evaluate the effects of administration of Zea Mays L. on the healing process after periodontal surgery as adjuntives. Authors used 3 kinds of different clinical criteria, depth of periodontal pocket by using the Goldman Fox periodontal probe, degree, of tooth mobility by Periotest, and amount of occlusal force with electronic device. In this comparative clinical study, 30 patients who were divided into two group, 15 ZML administrated group and 15 placebo adminstrated group, were participated. All the examined teeth were isolated with gauze and air spray, and measured each clinical critera on the day of before surgery, 1, 2, 4, 8 weeks after surgery. The results were as follows. 1. The changes of the periodontal pocket depth, on the both of Zea Mays L. administrated group and placebo adminstrated group, revealed the decreasing tendency, and it was shown the time dependent tendency. But there was no statistically significant differences between the two group. 2. In the case of tooth mobility, both group showed the highest severe mobility on the 1 week after surgery. It was observed that experimental group had more effects on decreasing the mobility. But there was no statistically significant differences between the two group. 3. In the case of experimental group, the recovery trend of occlusal forces after periodontal surgery on the molar teeth revealed higher than the control group. But there was no statistically significant differences between the two group. In conclusion, Zea Mays L. may play a favorable role in the healing process after periodontal surgery. It was suggested that further study to evaluate the effects of selective administration on the patient who have systemic diseases should be needed.

• 한국동물학회:학술대회논문집
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• 한국동물학회 1998년도 한국생물과학협회 학술발표대회
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• pp.320.2-320
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• 1998

No Abstract, See Full Text

• 한국동물학회:학술대회논문집
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• 한국동물학회 1998년도 한국생물과학협회 학술발표대회
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• pp.318.2-318
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• 1998

No Abstract, See Full Text

• 대한치주과학회:학술대회논문집
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• 대한치주과학회 2000년도 제40회 종합학술대회 연제초록
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• pp.148-148
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• 2000

• Genomics & Informatics
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• 제20권4호
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• pp.45.1-45.7
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• 2022

Food security will be affected by climate change worldwide, particularly in the developing world, where the most important food products originate from plants. Plants are often exposed to environmental stresses that may affect their growth, development, yield, and food quality. Auxin is a hormone that plays a critical role in improving plants' tolerance of environmental conditions. Auxin controls the expression of many stress-responsive genes in plants by interacting with specific cis-regulatory elements called auxin-responsive elements (AuxREs). In this work, we performed an in silico prediction of AuxREs in promoters of five auxin-responsive genes in Zea mays. We applied a data fusion approach based on the combined use of Dempster-Shafer evidence theory and fuzzy sets. Auxin has a direct impact on cell membrane proteins. The short-term auxin response may be represented by the regulation of transmembrane gene expression. The detection of an AuxRE in the promoter of prolyl oligopeptidase (POP) in Z. mays and the 3-fold overexpression of this gene under auxin treatment for 30 min indicated the role of POP in maize auxin response. POP is regulated by auxin to perform stress adaptation. In addition, the detection of two AuxRE TGTCTC motifs in the upstream sequence of the bx1 gene suggests that bx1 can be regulated by auxin. Auxin may also be involved in the regulation of dehydration-responsive element-binding and some members of the protein kinase superfamily.

• 한국초지조사료학회지
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• 제20권1호
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• pp.41-48
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• 2000

This study was conducted to investigate the effects of the application rate of fermented swine manure and additional mineral fertilizer on productivity and nutritive value of corn(Zea mays L.) for silage. Swine manures used in this study were the compost of swine manure fermented with sawdust(SMFWS) and swine sluny(SS). This study was arranged in split-split plot design. Main plots were the types of swine manure, subplots were the application rate of swine manure, such as 100, 200 and 400kgN/ha, and sub-subplots were the application rate of mineral fertilizer, such as 50 and 100kgNiha. Corn DM(dry matter) and TDN(tota1 digestible nutrient) yields increased as application rate of SMFWS and SS increased. DM and TDN yields in SS treatments were higher than those in SMFWS treatments. The effect of fermented swine manure improved positively as application rate of urea increased. Net energy for lactation(NE1) and TDN content in corn decreased as application rate of SMFWS and SS increased, but crude protein(CP) content increased by the application of SMFWS and SS. NE, and TDN contents in SMFWS treatments were lower than those in SS treatments, but CP content in SMFWS was higher than that in SS. The growth and nutritive value of corn were improved by the application of mineral fertilizer. (Key words : Swine manure, Swine sluury, Compost, Zea may, TDN, Net energy)

• 한국초지조사료학회지
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• 제19권1호
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• pp.31-40
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• 1999

본 시험은 병원성 사상균에 길항작용이 있고 식물의 생육을 촉진하는 세균을 이용하여 연작 및 비연 작토양에 있어서 옥수수(Zea may L.)의 생산성을 증대시킬 수 있는 방안을 제시하고자 수행되었다. 옥수수는 전남대학교 농과대학 부속동물사육장내 vinyl house에서 자연광 상태에서 $pot(30{\times}50cm)$로 재배한 다음 파종 후 50일 및 90일에 수확하여 건물중을 조사하였으며, 시험토양은 연작 및 비연작지의 양토와 버미큘라이트를 1:1 로 혼합하여 사용하였다. 본 시험에 이용된 세균은 목초근권에서 직접 분리한 Bacillus subtilis 였다. 연작 및 비연작 토양 모두 B. subtilis 처리구에서 옥수수의 건물중이 B. subtilis 무처리구보다 그리고 병원성 사상균 처리구보다 증가되었다. 그리고 비연작 토양에서 생장한 옥수수의 건물중은 연작토양에서 보다 증가하였다. 옥수수의 생장에 있어서 B. subtilis 접종효과는 연작토양보다 비연작토양에서 좋게 나타났다. 그러나 연작 및 비연작토양 모두 병원성사상균을 접종함으로써 옥수수의 건물중은 현저하게 감소되었다.

• 한국식물생명공학회:학술대회논문집
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• 한국식물생명공학회 2004년도 생명공학 실용화를 위한 비젼
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• pp.125-125
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• 2004

• Biomolecules & Therapeutics
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• 제18권3호
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• pp.286-293
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• 2010

Cytokine production is a sensitive indicator for monitoring perturbations of the immune system by xenobiotics in animals and humans. In the present study, we evaluated the changes in $IFN{\gamma}$, IL-5 and $TNF{\alpha}$ mRNA expression after atrazine (ATZ), perfluorooctanoic acid (PFOA) or zearalenone (ZEA) exposure in Jurkat cells. The IC50 (concentration for a 50% inhibition of cell proliferation) of PFOA and ZEA after 3 days culture were $226.6\;{\mu}M$ and $52.6\;{\mu}M$, respectively. The effects of ATZ on cytokine expression followed in increasing order of $IFN{\gamma}$>IL-5>$TNF{\alpha}$ at $3\;{\mu}M$ and at the lower concentrations the degree of effects on three cytokines were less clear between the cytokines when compared to control level. PFOA had marked increasing effect in order of $IFN{\gamma}$>$TNF{\alpha}$>IL-5 mRNA expression at IC50, and these patterns were continued at the lower concentrations, IC50/2 and IC50/4. ZEA caused the overexpression of cytokine mRNAs in order of IL-5>$IFN{\gamma}$>$TNF{\alpha}$ at both IC50 and IC50/2, and at IC50/4 the overexpression order was IL-5>$TNF{\alpha}$. On other hand, $IFN{\gamma}$ was less distinct compared to the control. These data indicate that ATZ, PFOA and ZEA caused the overtranscription of $IFN{\gamma}$, IL-5 and $TNF{\alpha}$ mRNA, and the overproduction of these cytokines may eventually lead to immune disorders.