• 한국식품영양과학회지
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• 제31권4호
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• pp.713-716
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• 2002

발효기간동안 된장에서 검출된 biogenic amine은 putrescine cadaverine, tryptamine $\beta$-phenylethylamine, spermidine, spermine, histamine, tyramine 및 agmatine 등으로 총 9가지 종류이며 , 검출된 biogenic amine 중 agmatine의 함량이 가장 높은 것으로 나타났다. 된장의 발효기간에 따른 biogenic amine함량은 종류에 따라 증가 혹은 감소하는 경향을 보였다. 감마선 조사에 의해 발효기간 중 대부분의 biogenic amine함량이 20~60% 가량 유의적(p<0.05)으로 감소하였는데, 이 중 spermine 및 agmatine은 대조구와 유의적인 차이를 보이지 않아 감마선 조사에 의한 영향을 받지 않는 것으로 나타났다. 따라서, 감마선 조사기술은 된장숙성 중의 biogenic amine 생성을 억제시킬 수 있는 것으로 나타났다.

• 한국버섯학회지
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• 제19권3호
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• pp.256-259
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• 2021

현재 양송이 품종의 개발은 1980년대에 개발된 방법에 의존하여 진행되고 있다. 유전자가위를 이용한 유전자교정 기술이 다양한 분야에서 각광받고 있고, 이 기술을 버섯 육종에도 적용하기 위하여 진행된 이 연구에서는, CRISPR/Cas9 활용에 필수적인 원형질체 분리 효율을 1.0 × 10⁸/mL까지 안정적으로 끌어올렸고, spermidine을 이용하여 PEG 형질전환의 효율 또한 기존 방법에 비해 100배가량 끌어올렸음을 보고한다.

• 한국식품영양과학회지
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• 제46권2호
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• pp.244-250
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• 2017

Dimethylamine(DMA), 질산염, 아질산염, biogenic amines은 발암성 니트로사민의 전구물질이다. 본 연구는 국내 상품 김치로 유통되고 있는 국내산 배추김치, 깍두기, 총각김치, 맛김치, 묵은김치, 백김치의 김치 내 DMA, 질산염, 아질산염, biogenic amines의 오염도를 조사하였다. 배추김치 내 DMA, 질산염, 아질산염 함량은 각각 29.7, 2,178.8, 3.0 mg/kg이었다. 김치 종류 중에서 깍두기의 DMA와 질산염 함량이 가장 낮았다. Tryptamine, putrescine, cadaverine, tyramine, spermidine이 백김치와 총각김치를 제외한 분석된 김치 내 검출되었다. 백김치 내 tryptamine이 단지흔적량 존재하고 spermidine은 총각김치에서는 검출되지 않았다. 배추김치 내 tryptamine, putrescine, cadaverine, tyramine, spermidine의 함량은 각각 15.0, 64.6, 18.0, 44.0, 7.8 mg/kg이었다. 깍두기 내 tyramine의 함량이 낮았다. 깍두기 내 NDMA의 오염도를 분석하였고, 그 평균 함량은 $1.38{\mu}g/kg$이었다. 깍두기 1일 평균 섭취량과 체중을 근거로 깍두기 섭취군의 NDMA 인체노출량을 산출한 결과 깍두기 섭취로 인한 NDMA 노출량은 $2.31{\times}10^{-7}mg/kg\;b.w./d$로 나타났으며, 노출안전역(MOE)은 259,924로 위해 정도가 매우 낮은 안전한 수준으로 나타났다.

• 한국약용작물학회지
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• 제9권4호
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• pp.310-317
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• 2001

1. Bulb 유래 식물체 재분화는 식물생장조절물질이 첨가되지 않은 1/4MS 액체 배지에서 잎과 뿌리분화 및 생장, bulb 분화가 양호하였다. 2. 캘러스 현탁배양의 경우 2,4-D 1mg/ l 를 처리한 액체배지는 배발생 캘러스를 증가하였다. 식물생장조절제가 처리되지 않은 액체배지는 캘러스가 활성을 잃었고, 활성 감소는 salt strength가 감소함에 따라 급격히 감소하였다. 그리고 생장조절제가 처리되지 않는 액체배지에서 소수의 캘러스로부터 잎의 분화가 관찰되었다. 3. 솔나리 잎, 뿌리, 인편 중 재분화 식물체 유도는 인편이 가장 적합하며, 인편을 치상하였을 때, 잎의 분화는 MS 기본 배지에 NAA 1mg/ l 첨가와 1.5%의 sucrose 첨가한 곳에서 가장 양호하였다. 잎의 생장은 MS 기본 배지에 NAA 1mg / l를 첨가와 3.0%의 sucrose를 처리한 곳에서 관찰되었다. 뿌리의 분화 및 생장, 인편의 분화는 MS기본 배지에 NAA 1mg / l 를 첨가와 6%의 sucrose를 첨가한 배지에서 가장 양호함을 나타내었다. 4. 고체배지에서 잎의 분화는 spermidine에 비해 spermine첨가가 효과적이었고, 잎의 신장은 spermidine처리가 보다 효과적이었다. 뿌리의 분화 및 생장은 spermine처리에 의해 양호한 결과를 나타내었고, 인편의 분화는 spermidine첨가에서만이 나타났다. 액체배지에서 spermine과 spermidine 1mg/ l 를 처리하였을 때 잎, 뿌리 모두 분화하였다. Spermine 1mg/ l 를 첨가한 한 플라스크에서는 체세포 배 발생 이 관찰되었는데, 이는 2, 4-D 1mg/ l 를 처리한 액체배지에서 나타나는 것과 유사함을 나타내었다. 솔나리 인편배양에서 polyamine의 처리는 액체배지보다 고체배지가 효과적이었다. 5. 솔나리 인편배양을 통해 분화된 식물체의 토양순화 실험에서, 재분화된 식물체의 생존률은 vermiculite + perlite (1 : 1 by volume)에서 96.3%를 나타내어 가장 양호한 결과를 얻었고, 순화된 식물체의 뿌리 생장은 peat moss에서 가장 양호하였다.

• 한국환경성돌연변이발암원학회:학술대회논문집
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• 한국환경성돌연변이발암원학회 2001년도 Korean Environmental Mutagen Society
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• pp.101-102
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• 2001

• The Korean Journal of Ecology
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• 제19권5호
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• pp.385-392
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• 1996

Changes in polyamine titers and enzyme activities during radicle growth of Glycine max were studied in order to investigate the effect of ferulic acid in regulation of polyamine biosynthesis. Among eight compounds used, gallic acid stimulated the radicle growth and ferulic acid inhibited it significantly. During the radicle growth of Glycine max, the content of putrescine was shown the highest level at the second day, while at the fourth day spermidine was the highest and spermine followed. Ornithine decarboxylass (ODC, EC 4.1.1.17) seems to be responsible for biosynthesis of putrescine. As the concentration of ferulic acid (0.001, 0.01, 0.1 mM) treated increased, the content of spermine was gradually enhanced and putrescine was increased at 0.001~0.01 mM, decreased after 0.1 mM concentration but spermidine was not affected. Ferulic acid elevated ODC and S-adenosylmethionine decarboxylass (SAMDC, EC 4.1.1.50) activity. ODC activity was increased more than 120% and SAMDC activity was increased about 50% more than that of the control. Diamine oxidase (DAO EC, 1.4.3.6) activity was enhanced about 20% at low concentration, decreased after then.

• 한국약용작물학회지
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• 제5권3호
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• pp.186-190
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• 1997

This study was carried out to investigate the effect of polyamines, salt strength. sucrose and gelling agents on the regeneration of plantlets by meristem culture of Aloe arborescens Mill. and Aloe vera L.. Shoot multiplication was more effective when 10mg/ l spermine in Aloe arborescens and 1mg/ l spermidine in Aloe vera added into MS medium than when other polyamines were treated into media. A quarter strength of MS medium was effective for rooting of shoots regenerated. Higher concentration of sucrose (45g/ l) was more effective for shoot regeneration. Addition of 4g/ l gelrite into the medium was effective for induction of multiple shoots from Aloe than that of agar or other concentrations of gelrite. When plantlets regenerated from meristem culture were transferred to pot. survival rate of plantlets was 80% on perlite and was 95% on vermiculite. respectively.

• Journal of Plant Biology
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• 제39권2호
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• pp.107-112
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• 1996

To study the compensatory aspect of putrescine biosynthetic enzyme n tobacco suspension cultured cells, we examined the contents of the cellular polyamines and the activities of arginine decarboxylase (ADC, EC 4.1.1.19) and ornithine decarboxylase (ODC, EC 4.1.1.17) in the tobacco suspension cells treated with $\alpha$-difluoromethyl arginine (DFMA) or $\alpha$-difluoromethyl ornithine (DFMO). In the untreated cells, the content of the cellular putrescine was decreased during the first 3 hours and then subsequently increased. However, the content of the cellular spermidine and spermine remained constant during the incubation time. While ADC activity increased after 6 hours, ODC activity decreased following the rapid increase until 6 hours. DFMA induced the decrease in the contents of putrescine and spermidine, and the increase in that of spermine. It also caused the inhibition of ADC and ODC activities throughout the incubation time. DFMO produced the stimulation of ADC activity about 2 times of untreated cells and the decrease in the content of putrescine about 50% of them at 12 hour. The application of putrescine or cycloheximide prevented the increase of ADC activity by DFMO but that of actinomycin-D did not show any detectable effect. The stimulation of ADC activity by DFMO in tobacco suspension cultured cells was probably due to the enhancement of de novo synthesis for ADC protein, which might be regulated in the translation step by the content of the cellular putrescine.

• BMB Reports
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• 제28권3호
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• pp.191-196
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• 1995

The role of polyamines in skeletal myoblast differentiation was investigated using the polyamine metabolic inhibitor methylglyoxal bis(guanylhydrazone)(MGBG). Concentrations of intracellular free spermidine and spermine increased 2 to 2.5-fold at the onset of myoblast fusion. The systhesis of actin, and creatine kinase activity both dramatically increased during myotube formation. However, MGBG at a concentration of 0.5 mM not only abolished the increase of intracellular free polyamines, but also reduced cell fusion to almost half the level of untreated cells, without noticeable morphological alteration. The production of actin, and creatine kinase activity were almost completely abolished by MGBG. The inhibition of myoblast fusion by MGBG was partially recovered with 0.1 mM of spermidine or spermine added externally. Results indicate that polyamines are necessary for normal myoblast differentiation. Since the first indication of myoblast differentiation is alignment of muscle cells and membrane fusion of adjacent cells, and since polyamine depletion completely inhibited the synthesis of actin, which might be associted with membranes, polyamine might be involved in myoblast differentiation through membrane reorganization events.

• Biomolecules & Therapeutics
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• 제21권1호
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• pp.1-9
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• 2013

Polyamines, putrescine, spermidine and spermine, are ubiquitous in living cells and are essential for eukaryotic cell growth. These polycations interact with negatively charged molecules such as DNA, RNA, acidic proteins and phospholipids and modulate various cellular functions including macromolecular synthesis. Dysregulation of the polyamine pathway leads to pathological conditions including cancer, inflammation, stroke, renal failure and diabetes. Increase in polyamines and polyamine synthesis enzymes is often associated with tumor growth, and urinary and plasma contents of polyamines and their metabolites have been investigated as diagnostic markers for cancers. Of these, diacetylated derivatives of spermidine and spermine are elevated in the urine of cancer patients and present potential markers for early detection. Enhanced catabolism of cellular polyamines by polyamine oxidases (PAO), spermine oxidase (SMO) or acetylpolyamine oxidase (AcPAO), increases cellular oxidative stress and generates hydrogen peroxide and a reactive toxic metabolite, acrolein, which covalently incorporates into lysine residues of cellular proteins. Levels of protein-conjuagated acrolein (PC-Acro) and polyamine oxidizing enzymes were increased in the locus of brain infarction and in plasma in a mouse model of stroke and also in the plasma of stroke patients. When the combined measurements of PC-Acro, interleukin 6 (IL-6), and C-reactive protein (CRP) were evaluated, even silent brain infarction (SBI) was detected with high sensitivity and specificity. Considering that there are no reliable biochemical markers for early stage of stroke, PC-Acro and PAOs present promising markers. Thus the polyamine metabolites in plasma or urine provide useful tools in early diagnosis of cancer and stroke.