• The Journal of Pediatrics of Korean Medicine
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• v.15 no.1
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• pp.71-75
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• 2001

백혈병은 조혈계통의 악성 증식성 질환으로서 현재까지 주로 화학약물요법에 의존하고 있는 실정이다. 화학약물요법은 백혈병 세포를 소멸시킬 수 있지만 또한 인체에 여러 가지 독성 반응 및 부작용을 일으키기도 한다. 따라서 중서의결합으로 백혈병 치료에 접근하는 것은 중요한 의미를 갖는다. 중의학에서 소아 백혈병을 치료하는 경우 청열해독법(淸熱解毒法), 부정보허법(扶正補虛法), 활혈화어법(活血化瘀法)을 주로 사용한다. 청열해독법은 백혈병의 조기치료에 주로 활용되는데, 인체의 저항력을 증강시켜 화학약물요법을 실시하는 동안 흔히 나타날 수 있는 감염증상을 예방하는 효과를 얻을 수 있다. 부정보허법(扶正補虛法)은 주로 화학약물요법의 유도 완화기 및 치료효과의 유지를 위하여 활용되는데, 이는 인체의 면역력을 향상시켜 화학약물요법이 인체에 미치는 손상을 경감시킬 수 있다. 활혈화어법(活血化瘀法)은 미세순환을 개선시키는 작용을 하며 골수의 조혈기능을 촉진하고 면역기능을 조절하며 또한 일부 활혈화어제(活血化瘀劑)는 백혈병 세포에 직접적인 억제효과를 보인다. 소아백혈병에 대하여 화학약물요법을 진행하는 동안 중약을 같이 병행하는 경우 다음과 같은 과정으로 나누어 실시할 수 있다. 1. 유도완화치료(화학요법)단계: 이와 같은 치료과정은 대개 화학약물요법으로 인한 극심한 독성반응이나 주작용을 나타내게 되는데, 이 과정에서 중약치료를 병행하면 신속하게 증상을 개선시킬 수 있다. 만약 구토나 설사와 같은 소화계 부작용이 나타나면 화위강역법(和胃降逆法)을 활용하고, 감염 증상이 나타나면 부정(扶正)과 거사법(祛邪法)을 병행할 수 있다. 화학약물요법을 진행한 후 신체가 극도로 허약해지고 골수의 기능이 심하게 억제되는 경우는 주로 부정(扶正)시키는 중약을 사용하면서 익기양혈제(益氣養血劑)를 곁들이고 보조적으로 단삼(丹蔘), 당귀(當歸), 천궁(川芎), 계혈등(鷄血藤) 등과 같은 활혈화어제(活血化瘀劑)를 사용하여 골수의 조혈기능을 회복시킨다. 2. 치료효과의 유지단계: 본 과정에서는 중약치료에 있어서 부정(扶正)과 거사법(祛邪法)을 병행한다. 화학약물요법을 실시하는 동시에 거사제(祛邪劑)를 중용(重用)함으로써 화학약물요법의 효과를 강화시킨다. 화학약물요법이 끝난 뒤 부정(扶正)시키는 약물을 중용(重用)하여 인체의 면역기능을 증강시키고 백혈병세포를 억제시킨다. 3. 치료효과의 유지 및 강화단계: 치료효과의 유지단계에서는 변증논치(辨證論治)의 원칙에 입각하여 항암효과가 있는 중약을 활용할 수 있는데, 예를 들어 백화사설초(白花蛇舌草), 산자고(山慈?), 청대(靑黛), 용규(龍葵) 등을 사용할 수 있고, 육신환(六神丸)을 장기적으로 복용하여도 된다. 소아백혈병 치료에 있어서 중서의결합의 치료법을 활용하는 경우 다음과 같은 내용에 주안점을 둘 수 있다. 화학약물요법을 진행하는 과정에서 중약을 병행하여 투여하는 경우 사진합삼(四診合參)을 근간으로 종합적인 분석을 통하여 병인(病因)을 살피어 치료에 임하도록 한다. 약물의 선택과 처방의 구성은 반드시 변증논치(辨證論治)의 원칙하에 이루어져야 한다. 화학약물요법과 중약치료를 병행하는 과정에서 변증(辨證)과 변병(辨病)이 서로 결합되고 부정(扶正)과 거사법(祛邪法)을 병행하여 활용한다. 정체관(整體觀)에서 출발하여 환자를 관찰하는 동시에 특징적인 증후(證候)에 대한 변증논치(辨證論治)도 중요하며, 또한 백혈병 환자의 유형(類型)이나 임상 혈액검사 소견, 골수의 양상, 화학요법의 진행단계 및 환자의 연령과 체질 등을 충분히 가만하여 종합적인 분석을 토대로 치료법을 선택하여야 중약요법과 화학약물요법의 협동적인 효과를 증폭시키고 백혈병치료에 새로운 전기를 마련할 수 있을 것이다.

• Journal of Life Science
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• v.24 no.9
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• pp.1012-1018
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• 2014

Sasa quelpaertensis Nakai (Korean name, Jeju-Joritdae) is one of the most abundant plants on Mt. Halla, Jeju Island, and it has long been used in traditional medicines. Recent studies have reported it as possessing various beneficial functions, including anti-inflammatory, anti-diabetic, anti-hypertension, anti-gastritis, anti-oxidant, and anti-cancer effects. However, the molecular mechanisms of its anti-cancer activity have not been clearly elucidated. In this study, we investigated the anti-cancer effects and mechanism of S. quelpaertensis on human colon cancer HT-29 cells. Cell growth inhibition by S. quelpaertensis was determined by MTT assay. Apoptosis was performed by DNA fragmentation, flow cytometry with propidium iodide staining (PI), and reverse transcription-polymerase chain reaction (RT-PCR) to confirm the anti-apoptotic factors, such as inhibitor of apoptosis (IAP) family members. $NO^{\bullet}$ production was determined by Griess assay. S. quelpaertensis treatment resulted in the time- and dose-dependent inhibition of the cell viability of HT-29 cells by inducing apoptosis, as evidenced by the accumulation of the sub-G1 cell population stained by PI, as well as the ladder-like DNA fragmentation in a dose-dependent manner. S. quelpaertensis-inducing apoptosis was accompanied by the induction of S cell cycle arrests, increasing $NO^{\bullet}$ concentrations, and the down-regulation of IAPs, including X-chromosome-linked IAP (XIAP), cellular IAP-1 (cIAP-1), cIAP-2, and survivin. Taken together, these findings have important implications for future clinical developments of S. quelpaertensis in colon cancer treatment.

• Korean Journal of Weed Science
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• v.9 no.1
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• pp.1-15
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• 1989

The seventeen barnyardgrass [Echinochloa crus-galli (L.) Beauv.] accessions, which were collected national-widely in 1986 and selected two times through 1987, were experimented at 1988. To identify the ecological properties of the collected accessions of native barnyardgrass species as a weed, the experiment was conducted with Wagner pots in size of I/500a and under PE film house. 1. Accessions were classified into 5 specific groups in plant type properties by use of data from plant height, number of maximum tillers, erectness, culm length and panicle type, among others. 2. As for species identification, they were clustered into 3 similar groups and 2 individual species by use of data from color, first-glumer type, and erectness. 3. Four groups were identified for elongational properties by plant height of 22 days old seedling, length of culm, panical, leaf length and width, and inter-node and spikelet, among others. 4. Properties on quanititative growth were classified into 4 groups and 1 individual accession corresponding to differential plant height of 22 days old seedling, length of culm, panical, inter-node, leaf-sheath, spikelet, first-glumes length, grain, number of tillers, spike, and grain weight. 5. Due to different daily increasing rate in seedling height, dry weight, number of tillers and ratio in dry weight to plant height, the growth rate properties were clustered into 4 groups and one individual accession. 6. Properties on seedling growth were classified into 4 groups by use of differential date in length and width of first-leaf, plant height, number of tillers, and dry weight of young and medium aged seedling. 7. Responding to heading date, the accessions were classified into 3 groups : temperative sensitive, medium, and short-day length sensitive types, respectively. 8. By integrating of all quanititative and attributable characters, the seventeen accessions were clustered into 4 groups and 2 individual accessions.

• Korean Journal of Agricultural Science
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• v.25 no.2
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• pp.199-215
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• 1998

In order to determine the effect of tomato(Lycopersicon escylentnm mill ssp.) on the yogurt quality, skim milk powders were added with tomato juice of 0%, 1%, 3%, 5% and fermented by mixed culture(Streptococcus salivarius subsp. thermophilus and Lactobacillus delbrueckii subsp. bulgaricus. The results were summarized as follows: 1. Addition of tomato juice in skim milk decreased pH(4.3) and increased acidity(0.93%) more than control did(pH 4.6, titratable acidity 0.85%). By the addition of tomato juice, acid production was increased and pH was decreased in proportion to concentrations of tomato juices added to skim milk. 2. The number of lactic acid bacteria in yogurts added with tomato juice ($4.59{\times}10^{12}cfu/ml$) more increased than those in control yogurt($8.96{\times}10^{11}cfu/ml$). By the addition of tomato juice, the number of lactic acid bacteria counts increased in proportion to concentration of tomato juices added to skim milk. 3. As fermentation time goes by, the Brix degree sugar content in skim milk were decreased more rapidly than control. 4. The pH, titratable acidity, Brix degree and lactic acid bacteria were not significantly changed for all yogurts for the storing at $5^{\circ}C$ for 14 days. 5. In yogurt fermentation, addition of tomato juice with glucose (1% tomato juice + 4% glucose, 3% tomato juice + 2% glucose, 5% tomato juice + 0% glucose) decreased pH and increased acidity than control(5%glucose) did. In addition of tomato juice, acidity was increased and pH was decreased in proportion to concentration of tomato juices added to skim milk. 6. In yogurt fermentation, the number of lactic acid bacteria of yogurt added with tomato juice(1% tomato juice+4% glucose, 3% tomato juice+2% glucose, 5% tomato juice+0% glucose) increased than control(5% glucose). In addition of tomato juice, the number of lactic acid bacteria increased in proportion to concentration of tomato juices added to skim milk. 7. As fermentation time goes by, the Brix degree were decreased more rapidly than control(5% glucose). By the change of pH, titratable acidity, Brix degree and lactic acid bacteria, in yogurt fermentation, we definited that the promotive effect of tomato(Lycopersicon escylentnm mill ssp.) on the yogurt.

• Journal of Life Science
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• v.33 no.11
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• pp.915-922
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• 2023

Lactic acid bacteria (LAB) are widespread in a variety of environments including fermented dairy products, gastroinstetinal and urogenital tracts of human and animals, plant, soil and water. Leuconostoc mesenteroides DB3 was detected by the strongest antibacterial activities among 24 Leuconostoc strains isolated from Camellia japonica flowers. Acid tolerance of L. mesenteroides DB3 existed up to pH 2.5, but the resistance did not show at pH 2.0, which relatively excellent acid resistance existed. Bile acid tolerance was very stable within the test range to 1.2%. L. mesenteroides DB3 exhibited the optimal growth at 30℃, and showed a slight slow growth when compared with L. mesenteroides KCTC3505, which reached a stationary phase at 18 hr. The pH was changed along with the growth curve, but was maintained above pH 3.98. L. mesenteroides DB3 had higher initial antibacterial activities when compared to L. mesenteroides KCTC3505, but it showed similar activities with the standard strain after the latter part of the logarithmic growth phase. Although lactic acid production in L. mesenteroides DB3 was induced by lower amount in the initial part to the standard strain, it was exhibited by similar amounts after the late logarithmic growth phase. Muicin adhesion of L. mesenteroides DB-3 maintained superior to L. mesenteroides KCTC3505. Both strains showed excellent emulsification ability for kerosene. In summary, we evaluate that L. mesenteroides DB-3 has a high potential for application as probiotics owing to its excellent antibacterial activity, acid resistance, bile acid resistance, and muicin adhesion.

• Applied Biological Chemistry
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• v.14 no.2
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• pp.137-148
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• 1971

Studies were carried out to investigate the main fermentation microorganisms and their flora changes during Korean native soy-sauce fermentation. Korean native Maeju loaves collected from 5 Do's were separated into surface and inner parts. Four different soy-sauces-the surface part Maeju fermented soy-sauce, the inner part, the surface and inner part combined Maeju fermented soy-sauce, and the semi-Japanese type soy-sauce were fermented and the changes of fermentation microorganism flora and the various chemical components during the period of their fermentations were studied. Besides, 14 home-made soy-sauces collected from 14 different places all over Korea were examined in comparison with the laboratory soy-sauces and to determine the characteristics of Korean native soy-sauce. The results were as follows: 1. The main microorganisms in Korean native soy-sauce fermentation were determined as; Aerobic bacteria: Bacillus subtilis, Bacillus pumilus Lactic acid bacteria: Pediococcus halophilus, Leuconostoc mesenteroides Yeasts: Torulopsis datila, Saccharomyces rouxii 2. Microflora changes during Korean native soy-sauce fermentation were as follows; Aerobic bacteria increased until the 2nd week of fermentation and then gradually decreased. The lactic acid bacteria increased until the 3rd week, after which decreased. When the lactic acid fermentation lowered the pH value to below the 5.4, yeasts were able to grow and participate the fermentation. As the production of organic acids amounted, to a certain height, the growth of all microorganisms lead to the period of decline or death at about the 2nd month of fermentation. After boiling of soy-sauce most microorganisms except a few of Bacillus sp. disappeared. Occosionally yeasts and lactic acid bacteria survived depending upon the composition of soy-sauce. 3. Changes of general chemical components influencing the microflora were investigated for the period of Korean native soy-sauce fermentation. Tetal acidity, salt concentration and total nitrogen were increasing steadily over the entire period of fermentation. pH values were dropping to a certain degree of about 4.5. Salt concentration and pH value seemed to be the important factors influencing the microflora. 4. The microflora were influenced by chemical components of soy-sauce. Aerobic bacteria were able to survive in all soy-sauce as they made spores. Growth of lactic acid bacteria was inhited at 23-26% of salt concentration and pH 4.8. Soy-sauce yeasts started to grow only at pH below 5.4 and seemed to be inhibited at around 26% of salt concentration under pH 4.5-4.7. 5. The open kettle boiling of soy-sauce, the characteristic process of Korean native soy-sauce manufacturing, was effective to sterilize microorganisms, increase the salt concentration, and coagulate proteins. 6. The average viable cell counts of microorganism found in collected samples of home-made Korean native soy-sauces were; Aerobic bacteria: $53{\times}10^2\;cell/ml$ Lactic acid bacteria: 34 cell/ml Yeasts: 14 cell/ml The average values of chemical compositions of samples of home-made Korean native soy-sauce were; Salt concentration: 28.9% pH value: 4.79 Total acidity(lactic acid): 0.91g/100ml Total nitrogen: 1.09g/100ml

• Proceedings of the Korean Society of Tobacco Science Conference
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• 1997.10a
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• pp.134-152
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• 1997

Plant viruses of tobacco including tobacco mosaic virus (TMV) and potato virus Y (PVY) cause severe economic losses in leaf-tobacco production. Cultural practices do not provide sufficient control against the viruses. Use of valuable resistant cultivars is most recommendable for the control of the viruses. However, conventional breeding programs are not always proper for the development of virus-resistant plants mostly owing to the frequent lack of genetic sources and introduction of their unwanted properties. Therefore, we tried to develop virus-resistant tobacco plants by transforming commercial tobacco cultivars, NC 82 and Burley 21, with coat protein (CP) or replicase (Nlb) genes of TMV and PVY necrosis strain (PVY-VN) with or without untranslated region (UTR) and with or without mutation. Each cDNA was cloned and inserted in plant expression vectors with 1 or 2 CaMV 35S promotors, and introduced into tobacco leaf tissues by Agrobacterium tumefaciens LBA 4404. Plants were regenerated in kanamycin-containing MS media. Regenerated plants were tested for resistance to TMV and PVY In these studies, we could obtain a TMV-resistant transgenic line transformed with TMV CP and 6 genetic lines with PVY-VN cDNAs out of 8 CP and replicase genes. In this presentation, resistance rates, verification of gene introduction in resistant plants, stability of resistance through generations, characteristics of viral multiplication and translocation in resistant plants, and resistance responses relative to inoculum potential and to various PVY strains will be shown. Yield and quality of leaf tobacco of a promising resistant tobacco line will be presented.

• Clinical and Experimental Pediatrics
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• v.51 no.3
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• pp.293-298
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• 2008

Purpose : The aim of our study was to evaluate the therapeutic response to cyclosporine, time to remission and side effects in steroid resistant nephrotic syndrome (SRNS). Methods : This study included 22 children with idiopathic SRNS who were treated with cyclosporine between June 1989 and August 2006. Medical records were reviewed retrospectively. Results : The mean age of patients at diagnosis was $5.2{\pm}3.3\;years$. The male to female ratio was 1.2:1. Pre-treatment renal biopsies showed minimal change (MCD) in 12 (54.5%), focal segmental glomerulosclerosis (FSGS) in 8 (36.4%), membranous nephropathy (MGN) in one (4.5%) and mesangioproliferative glomerulonephritis in one (4.5%). 15 (68.2%) patients responded to cyclosporine, of whom 11 (91.6%) patients were MCD, 3 (37.5%) patients FSGS, and 1 patient MGN (MCD vs FSGS, P<0.05). The time to remission in patients who responded to cyclosporine was $31.5{\pm}15.2\;days$. Four of the 15 cyclosporine responders maintained complete remission even after cessation of the medication Seven still received cyclosporine, 2 were intermittently treated with steroids after discontinuation of cyclosporine, and two were treated with cyclosporine and steroids. The mean duration of cyclosporine therapy was $546.5{\pm}346.2$, $1,392.9{\pm}439.7$, $439.5{\pm}84.1$, and $433.5{\pm}74.2$ days, respectively. We performed post-treatment biopsies in 8 patients and partial interstitial fibrosis and tubular atrophy were found in two. Conclusion : The thrapeutic response of cyclosporine is good in steroid resistant nephrotic syndrome, especially in minimal change. But, there is a problem of long term cyclosporine dependency.

• Journal of Oral Medicine and Pain
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• v.35 no.3
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• pp.165-175
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• 2010

Valproic acid (VPA) is a well-known anticonvulsive agent and has been used in the treatment of epilepsy for almost 30 years. VPA emerged in 1997 as an antineoplastic agent as well, when findings indicated the substance inhibited proliferation and induced differentiation of primitive neuroectocdermal tumor cells in vivo (Cinatl et al., 1997). Antitmor activity of VPA is associated with its targeting histone deacetylases. Bile acids and their synthetic derivatives induced apoptosis in various kinds of cancer cells and anticancer effects. It has been reported that the synthetic chenodeoxycholic acid (CDCA) derivatives showed apoptosis-inducing activity on various cancer cells in vitro. This study was undertaken to investigate the synergistic apoptotic effect of co-treatment with the histone deacetylases inhibitor, VPA and a CDCA derivative, HS-1200 on human osteosarcoma (HOS) cells. Cell viability was evaluated by trypan-blue exclusion. Induction and augmentation of apoptosis were confirmed by Hoechst staining, flow cytometry (DNA hypoploidy and MMP change), Westen blot analysis and immunofluorescent staining. In this study, HOS cells co-treated with VPA and HS-1200 showed several lines of apoptotic manifestation such as nuclear condensations, the reduction of MMP, the decrease of DNA content, the release of cytochrome c into cytosol, the translocation of AIF onto nuclei, and activation of caspase-7, caspase-3 and PARP whereas each single treated HOS cells did not. Although the single treatment of 1 mM VPA or $25\;{\mu}M$ HS-1200 for 48 h did not induce apoptosis, the co-treatment of them induced prominently apoptosis. Therefore our data provide the possibility that combination therapy of VPA and HS-1200 could be considered as a novel therapeutic strategy for human osteosarcoma.

• Korean Journal of Weed Science
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• v.8 no.3
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• pp.273-282
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• 1988

The seventeen barnyardgrass [Echinochloa crus-galli (L.) Beauv.] accessions, which were collected national-widely in 1986 and selected two times through 1987, were experimented at 1988. To study the degree of ecological variations of the collected accessions of native barngardgrass species as a weed, the experiment was conducted with Wagner pots in size of 1/5000a and under P.E. film house. Among 57 characters, 100 grains weight, rate of tiller increase from transplanting to 30 days, the number of the maximum tillers and rate of dry weight increase from 15 DAS to 22 DAS were become intra-specific variarions as higher coefficient of varation than 30%, the size of the first leaf, fresh weight and dry 22 seedlings, rate of productive tiller, panicle number and tillering divergence made intra-specific variations as more and less C. V. than 25%, while the required days upto heading since seeding at June 6. rate of fresh/dry weight and plant height of 22 days old seedling made intra-specific variations as the coefficient of variation of about 50%. Among the attributes the color in leaf, leaf sheath, mid-ribs, node, spike, grain, and plant type, length of leaf marginal tooth, grain shape, purple bend on leaf were seemed useful to indentify the accessible specific.