• Title/Summary/Keyword: 병용효과

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위암세포주에 대한 항암제 5-FU와 alpha-interferon의 상승적 항암효과

  • 김삼용
    • Proceedings of the Korean Society of Applied Pharmacology
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    • 1993.04a
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    • pp.131-131
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    • 1993
  • 위암의 화학요법 성적이 만족스럽지 못하므로 기존의 항암제와 alpha-interferon을 병용사용하므로써 상승적 항암효과가 있는가를 연구하였다. R-25 flask에 위암세포주 SNU-1 및 SNU-16을 배양하면서 항암제 5-FU 혹은 cisplatin에 alpha-interferon 2A(제일제당)를 분자량의 비에 따라 병요처리하였다. 96시간 배양후 cytotoxicity를 Mosman의 방법에 따른 MIT방법으로 분석하였으며, 이를 Chou등의 combination index 분석 program을 처리하였다. 위암세포주 SNU-1에 대하여 5-FU와 alpha-IFN은 상승작용을 보였다. 5-FU의 $IC_{50}$/가 14.25$\mu$M 이었고 IFN처리시는 $IC_{50}$/가 0.02$\mu$M이었으며 combination index(CI)는 모든 용량에서 1이하였다. SNU-16에 대하여도 5-FU와 alpha-IFN의 병용사용은 상승적 작용을 나타내었다. (CI<1.0). cisplatin과 alpha-IFN의 병용시에는 CI가 1이상을 나타내어 상승작용을 증명할 수 없었다.

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Efficacy of Ivermectin in Combination Treatment with Amitraz in Dogs with Generalized Demodicosis (개의 전신성 모낭충증에 대한 ivermectin과 amitraz의 병용치료효과)

  • 오태호;박회명;윤화영;한홍율
    • Journal of Veterinary Clinics
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    • v.15 no.1
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    • pp.209-213
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    • 1998
  • 난치성 전신성 모낭충증에 감염되어 약 4개월간 모낭충 치료제인 amitraz(0.0125%) 처치에도 불구하고 치유되지 않은 한국산 풍산개 2두에 대한 ivermectin 및 amitraz 의 병용치료효과를 알아보았다. 전신성 모낭충증은 신체의 50% 또는 4개의 발에 모두 모낭충 이 검출된 것으로 정의하였다. 내원시 신체검사, 심장사상충검사 및 최소 裂訃위에 대한 피부 박리검사를 실시하여 모낭충을 진단하였고 치료는 돼지용 ivermectin을 체중 kg당 0.5 mg을 피하로 매일 주사하였으며 1주일에 2회 amitraz 약욕을 실시하였다. 피부농피중은 cephalexin 20 mg/kg을 경구로 일일 2회 투여하여 치료하였다. 치료후 4주에 피부병변이 치유되기 시 작하였으며 6주에는 탈모 및 소수의 발진을 제외하고는 피부병변이 정상으로 회복하였다. 피 부박리검사는 6주에 모낭충이 검출되지 않았다. 이들 제제에 의한 부작용은 관찰되지 않았으며 매일 ivermectin 투여와 amitraz 약욕치료의 병용치료는 amitraz로 치료가 되지 않는 난치성의 전신성 모낭충증에 대한 치료기간을 단축시키는 효과적인 치료방법으로 생각된다.

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The Effect of Antiwashout Admixture and Corrosion Inhibitor on the Seawater Concrete (해수 콘크리트에 대한 수중불분리 혼화제와 방청제의 효과에 관한 연구)

  • Kang, Hyun-Ju;Lee, Kyung-Hee;Cho, In-Sung;Han, Sub-Hyung
    • Journal of the Korean Ceramic Society
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    • v.39 no.10
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    • pp.970-976
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    • 2002
  • In this paper, the slump flow of the concrete, suspension, pH, corrosion effect, bleeding and the characteristics of coompressive strength were analyzed using antiwashout underwater admixture and antiwashout underwater agent+corrosion inhibitor mixed admixtures(1type). The results showed that there were no rare difference in physical properties but in the results of rapid corrosion tests there were lots of corrosion inhibitor ratio differences between concrete using only antiwashout underwater admixture and the corrosion inhibitor mixed(1type). In the case of only antiwashout underwater admixture 5.4%, the case corrosion inhibitor mixed(1type) 0.07%, the Antiseawater of the concrete which uses the Corrosion Inibitor Mixed(1type) appeared highly.

Control Effects of Microbial Products on Pythium Blight, Brown Patch and Dollar Spot of Creeping Bentgrass (Creeping Bentgrass에서 미생물제에 의한 Pythium Blight, Brown Patch 및 Dollar Spot 방제 효과)

  • 황연성;최준수;김영호
    • Korean Journal Plant Pathology
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    • v.12 no.2
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    • pp.237-244
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    • 1996
  • 길항곰팡이 3종(Aspergillus sp. A101, Penicillium sp. B202, Trichoderma sp. C303), 길항세균 3종(Arthrobacter sp. AN303)또는 이들 모두의 혼합균주를 배양하여 creeping bentgrass 양묘장에 처리하여 Pythium blight, brown patch 및 dollar spot의 방제효과를 조사하였다. 또한 길항미생물 6종의 배양액을 살균제와 병용하여 그린에 살포하여 이들 토양병에 대한 방제효과를 조사하였다. 양묘장에서는 미생물의 종류에 관계없이 Pythium blight 억제효과가 커 3회 이상 미생물제 처리시 병이 전혀 발생하지 않았다. 그러나 brown patch와 dollar spot은 미생물제에 의한 방제효과가 크지 않았으며, 살균제에 의해 효과적으로 방제되었다. 미생물제와 살균(Pythium blight 방제용 살균제 제외)를 병용하여 처리한 그린에서는 살균제 단독처리와 비교할 때 brown patch는 유의적으로 억제되었고 Pythium blight와 dollar spot은 차이가 없었다.

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Effect of Electrolyzed Water Combined with Ultrasound and Organic Acids to Reduce Salmonella Typhimurium, Staphylococcus aureus, Bacillus cereus on Perilla Leaves (유기산 및 초음파 병용처리된 전해수를 이용한 들깻잎 중 Salmonella Typhimurium, Staphylococcus aureus, Bacillus cereus의 저감효과)

  • Kim, Se-Ri;Oh, Ki-Won;Lee, Myoung-Hee;Jung, Chan-Sik;Lee, Seo-Hyun;Park, Sun-Ja;Park, Jung-Hyun;Ryu, Kyoung-Yul;Kim, Byung-Seok;Kim, Doo-Ho;Yun, Jong-Chul;Chung, Duck-Hwa
    • Journal of Food Hygiene and Safety
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    • v.27 no.3
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    • pp.264-270
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    • 2012
  • This study was performed to compared the effectiveness of individual treatments (electrolyzed water: EW, organic acid, and ultrasound) and their combination on reducing foodborne pathogens from perilla leaves. Perilla leaves were innoculated with a cocktail of Salmonella Typhimurium, Staphylococcus aureus, Bacillus cereus. Inoculated perilla leaves were treated with EW combined with different concentration of acetic acid (0.5%, 1.0%, 1.5%, 2.0%) for 1 min at room temperature. Treatment of 3 pathogens on perilla leaves with electrolyzed water combined with ultrasound (25 kHz) and 0.5% acetic acid was also performed for 1 min. While the numbers of S. Typhimurium and B. cereus showed reduced with increasing acetic acid concentration, there is no difference in the number of S. aureus treated with EW containing 0.5% to 1.5% acetic acid. Discoloration was observed the perilla leaves treated with EW combined with more than 1.0% acetic acid. For all three pathogens, the combined treatment of EW and ultrasound resulted in additional 0.42 to 0.72 $log_{10}$ CFU/g. The maxium reductions of S. Typhimurium and B. cereus were 0.95, 1.23 $log_{10}$ CFU/g after treatment with EW combined with 0.5% acetic acid and ultrasound simultaneously. The results suggest that the treatment of EW combined with 0.5% acetic acid and ultrasound increased pathogens reduction compared to individual treatment.

The Combined Effects of Curcumin Administration and 630 nm LED Phototherapy against DNCB-induced Atopic Dermatitis-like Skin Lesions in BALB/c Mice (BALB/c 마우스에서 DNCB-유도 아토피 피부염 유사병변에 대한 Curcumin 투여와 630 nm LED 광치료의 병용 효과)

  • Jekal, Seung-Joo;Park, Mi-Suk;Kim, Dae-Jung
    • Korean Journal of Clinical Laboratory Science
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    • v.49 no.2
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    • pp.150-160
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    • 2017
  • Atopic dermatitis (AD) is a chronic inflammatory skin disease. It is characterized by eczematous lesions, skin dryness, and pruritus. The existing treatment drugs for AD have side effects, especially if the drugs are taken for extended periods. Therefore, new alternative therapies are necessary. The aim of this study was to investigate the combined effects of curcumin administration and LED irradiation on AD. AD-like lesions were induced in BALB/c mice by repeated application of 1-chloro-2,4-dinitrobenzene (DNCB) to the shaved skin of the ear and neck. Thirty male BALB/c mice were divided into five groups: vehicle, DNCB, curcumin, LED, and curcumin+LED groups. Curcumin (0.1 g/kg/day) was administrated repeatedly during a period of 14 days (experimental period) and 630 nm LED irradiation ($5J/cm^2/day$) was performed in the acryl box once a day for 10 days, after inducing AD-like lesions via DNCB application. The severity of AD-like lesions was evaluated during the experimental period, using a modified SCORAD index. Both ear and neck skin tissues were examined histologically for epidermal thickness, mast cell, eosinophil counting, and dermal collagen density. Epidermal cell proliferation and apoptosis were detected using immunohistochemistry and TUNEL, respectively. These were all reduced in SCORAD index, epidermal thickness, collagen density, number of mast cell and eosinophil in dermis, and number of proliferating cell and apoptotic cell in epidermis by curcumin administration and 630 nm LED irradiation. Moreover, all parameters were significantly lower in the curcumin+LED group compared with the curcumin group and LED group. These results suggest that the combined therapy of curcumin and LED is more effective than a single treatment. We recommend that this can be a feasible alternative therapy to manage AD.

THE COMPARATIVE STUDY ON THE EFFICACY OF CHLORAL HYDRATE AND HYDROXYZINE OF DIFFERENT DOSES IN SEDATING YOUNG PEDIATRIC DENTAL PATIENTS (Chloral hydrate와 병용투여 시 Hydroxyzine용량에 따른 진정효과의 비교연구)

  • Lee, In-Cheon;Kim, Jong-Soo;Kwoon, Soon-Won
    • Journal of the korean academy of Pediatric Dentistry
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    • v.28 no.3
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    • pp.430-440
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    • 2001
  • Orally administered chloral hydrate is often used, because of it's wide margin of safety and relatively few sideeffects. Hydroxyzine is an antihistamine with sedative and anti-emetic properties. It has been used in conjunction with chloral hydrate to reduce the incidence of nausea and vomiting. But, it's therapeutic drug concentration has not been established. The purpose of this study was to assess the sedative effect and physiologic parameter of hydroxyzine of different doses in sedating young pediatric dental patients. Fifty uncooperative children, mean age 33.2 months, who needed at least four separate restorative visits, requiring local anesthesia participated in this study. On every visit, one of the following 4 different sedative regimen was given (1) 70mg/kg CH (2) 70mg/kg CH and 1mg/kg HD (3) 70mg/kg CH and 2mg/kg HD (4) 70mg/kg CH and 3mg/kg HD. Physiologic parameter was recorded and behavior was videotaped and rated using Ohio State University Behavior Rating Scale by one investigator, blind to the dose. The analyzed sedative effect of combined oral administration of 70mg/kg chloral hydrate and 2mg/kg hydroxyzine was superior to the other regimens. Evidence of adverse effect was not detected or reported during and/or after the procedures.

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The Effect of Rebamipide on the Regulation of Intestinal Contractility (Carbachol에 의한 위장관 수축에 대한 rebamipide의 융합성 조절 효과)

  • Je, Hyun Dong;Min, Young Sil
    • Journal of Convergence for Information Technology
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    • v.10 no.10
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    • pp.109-114
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    • 2020
  • The aim of the study was to observe the influence and related mechanism of rebamipide on the intestinal contraction. Intestinal contraction includes the activation of thick or thin filament regulation. However, there are few reports addressing the question whether this regulation is involved in rebamipide-induced regulation. We hypothesized that rebamipide plays a role in intestinal contraction evoked by carbachol in rat intestine. Interestingly, rebamipide alone didn't inhibit and rather slightly increased the contraction in the denuded muscle. Therefore, rebamipide alone and together with indomethacin increases the ileal contraction suggesting that additional pathways might be involved in the regulation of ileal contractility. In conclusion, rebamipide has some effect on the regulation of contractility and anti-ulcer by NSAIDs.

Combinatorial effects of arginine and n-hexane extract from Korean red ginseng marc against Streptococcus mutans (Streptococcus mutans에 대한 홍삼박 n-hexane 추출물과 Arginine의 병용 효과)

  • Dong Chung Kim;Man-Jin In
    • Journal of Applied Biological Chemistry
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    • v.65 no.4
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    • pp.337-341
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    • 2022
  • In this study, the effect of the combined use of a lipid-soluble n-hexane extract of red ginseng marc (HERGM) and water-soluble arginine, which exhibits anticaries activity, on the growth of Streptococccus mutans was investigated. As a result of checkerboard assay, HERGM and arginine showed a synergistic effect in inhibiting the growth of S. mutans with a fractional inhibitory concentration index of 0.396. Combination treatments of HERGM and arginine resulted in leakage of nucleic acid components and decrease in the viable cell counts of S. mutans, all of which were proportional to the concentration of HERGM. In conclusion, the synergistic effect of HERGM and arginine on the growth inhibition of S. mutans is mainly attributed to HERGM.