• 제목/요약/키워드: Inhibiting Effect

검색결과 1,544건 처리시간 0.032초

Effect of Proline on First Polar Body Formation in Porcine Primary Oocyte

  • Oh, H. J.;Lee, E. J.;B. C. Yang;W. K. Chang;Kim, J. S.;J. K. Lim;Y. K. Yeo;M. A. Della-Fera;Park, Y. S.
    • 한국가축번식학회지
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    • 제26권2호
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    • pp.165-171
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    • 2002
  • 난포액에는 난자의 성숙을 억제하는 인자를 함유하고 있으나 화학적 성질이 정확히 알려져 있지않다. 본 연구에서는 1차 난모세포에서 난구세포의 해리와 제1극체의 형성을 억제하는 난포액 성분을 화학적으로 동정하기 위하여 수행되었다 이를 위하여 돼지 난포액을 methanol로 추출한 다음이 추출물을 Superose 12 및 Superdex column을 이용 연속적으로 분리하였으며, Superdex 분절은 PITC로 처리한 다음 아미노산 분석용 column을 이용 분석하였다. 얻어진 결과는 다음과 같다. 난포액은 1차 난모세포에서 난구세포의 해리와 제1극체의 형성을 억제하였다 난포액에서 추출 분리한 Superdex분절 RV2.11 역시 난구세포의 해리와 제1극체의 형성을 억제하였다. 아미노산 분석 결과, 분절 RV2.11은 proline으로 추정되며, proline은 난구세포의 해리와 제1극체의 형성을 억제하였다. 결론적으로 난포액에는 난구세포의 해리와 제1극체의 형성을 억제하는 성분인 proline을 함유하고 있으며, 이는 난자의 성숙을 억제하는 성분일 것으로 추정된다.

항암활성 수종생약의 B16-Fo와 A549 암세포에 대한 항전이 효과( I ) (Antimetastatic effect of several crude drugs with antitumor activity on B16-Fo and A549 cells ( I ))

  • 김성훈;유시용
    • 대한한의학회지
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    • 제17권1호
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    • pp.111-131
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    • 1996
  • For the development of antimetastatic agent 41 kinds of crude drugs were used for the evaluation of inhibitory effect of several crude drugs on cell adhesion of pulmonary cancer cells and platelet aggregation. Results were obtained as follows: 1. Water extracts of crude drugs inhibited cell adhesion of A549 to complex extracelluar matrix over 40 % of contol were Houttuyniae Herba, Mylabris, Rhei Radix et Rhizoma, Meliae Cortex, Ferula Resina, Oldenlandiae diffusae Herba at the higher concentration of $10^{-3}g/ml$ while those inhibiting cell adhesion of Bl6-Fo over 40 % of control were $10^{-5}g/ml$ of Houttuyniae Herba, Aurantii Fructus, Lithospermi Radix, Zedoariae Rhizoma. Prunellae Spica, Foeniculi Fructus, Rbei Radix, Scutellariae Radix, Meliae Cortex, Ferula Resina and Oldenlandiae diffusae Herba. 2. MeOH extracts of crude drugs at the concentration of $4{\times}10^{-4}g/ml$ inhibiting cell adhesion of A549 specifically to single extracelluar matrix over 40 % of control were Lithospermi Radix, Agrimoniae Herba, Rhei Radix and Ferula Resina to collagen I, Houttuyniae Herba, Lithospermi Radix, Bupleuri Radix, Salviae miltiorrhizae Radix, Orostachys Herba, Sappan Lignum, Meliae cortex ferula Resina and Coicis Semen to collagen Ⅳ, Mylabris, Agrimoniae Herba to laminin, Houttuyniae Herba and Meliae Cortex to fibronectin. 3. NeOH extracts of crude drugs at the concentration of $4{\times}10^{-4}g/ml$ inhibiting cell adhesion of B16-Fo specifically to single extracelluar matrix over 60 % of control were Lithospermi Radix, Salviae miltiorrhizae Radix, Meliae Cortex and Ferula Resina to collagen I, Lithospermi Radix, Bupleun Radix, Saiviae miltiorrhizae Radix, Ferula Resina and Acanthopanacis Cortex to collagen Ⅳ, Bupleuri Radix, Orostachys Herba to laminin, Houttuyniae Herba to fibronectin. 4. MeOH extracts of crude drugs inhibiting platelet aggregation over 40% of ADP control were at the concentration of $50{\mu}g/m{\ell}$ of Houttuyniae Herba, Angilicae gigantis Radix, Zedoariae Rhizoma. Coicis Semen and $100{\mu}g/m{\ell}$ of Ferula Resina, Orostachys Herba, Salviae miltiorrhizae Radix, Curcumac Radix, Carthami Flos, Lithospermi Radix, Gleditsiae Spina, Sappan Lignum, Acanthopanacis Cortex. These results suggest that several crude drugs including Ferula Resina, Houttuyniae Herba, Lithospermi Radix and Salviae miltiorrhizae Radix chiefly have more possibility to exert antimetastatic activity and require in vivo antimetastatic study.

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Heme oxygenase-1 (HO-1)/carbon monoxide (CO) axis suppresses RANKL-induced osteoclastic differentiation by inhibiting redox-sensitive NF-κB activation

  • Bak, Sun-Uk;Kim, Suji;Hwang, Hae-Jun;Yun, Jung-A;Kim, Wan-Sung;Won, Moo-Ho;Kim, Ji-Yoon;Ha, Kwon-Soo;Kwon, Young-Guen;Kim, Young-Myeong
    • BMB Reports
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    • 제50권2호
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    • pp.103-108
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    • 2017
  • Heme oxygenase (HO-1) catalyzes heme to carbon monoxide (CO), biliverdin/bilirubin, and iron and is known to prevent the pathogenesis of several human diseases. We assessed the beneficial effect of heme degradation products on osteoclastogenesis induced by receptor activator of NF-${\kappa}B$ ligand (RANKL). Treatment of RAW264.7 cells with CORM-2 (a CO donor) and bilirubin, but not with iron, decreased RANKL-induced osteoclastogenesis, with CORM-2 having a more potent anti-osteogenic effect. CORM-2 also inhibited RANKL-induced osteoclastogenesis and osteoclastic resorption activity in marrow-derived macrophages. Treatment with hemin, a HO-1 inducer, strongly inhibited RANKL-induced osteoclastogenesis in wild-type macrophages, but was ineffective in $HO-1^{+/-}$ cells. CORM-2 reduced RANKL-induced NFATc1 expression by inhibiting IKK-dependent NF-${\kappa}B$ activation and reactive oxygen species production. These results suggest that CO potently inhibits RANKL-induced osteoclastogenesis by inhibiting redox-sensitive NF-${\kappa}B$-mediated NFATc1 expression. Our findings indicate that HO-1/CO can act as an anti-resorption agent and reduce bone loss by blocking osteoclast differentiation.

Synergistic Effects of Bacteriocin-Producing Pediococcus acidilactici K10 and Organic Acids on Inhibiting Escherichia coli O157:H7 and Applications in Ground Beef

  • Moon, Gi-Seong;Kim, Wang-June;Kim, Myung-Hee
    • Journal of Microbiology and Biotechnology
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    • 제12권6호
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    • pp.936-942
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    • 2002
  • When used in combination with organic acids, Pediococcus acidilactici K10 or its bacteriocin was effective in inhibiting Escherichia coli O157:H7 in vitro and in situ. P. acidilactici K10, a strain of bacteriocin-producing lactic acid bacteria (LAB), was previously isolated from kimchi in our laboratory, and the molecular weight of its bacteriocin was estimated to be around 4,500 Da by SDS-PAGE. Initially, P. acidilactici K10 and its bacteriocin could not inhibit E. coli O157:H7, when used alone. However, when they were used together with organic acids such as acetic, lactic, and succinic acids, they greatly inhibited E. coli O157:H7 in vitro. Based on these in vitro results, a real sample test with ground beef was conducted at $4^{\circ}C$ with acetic acid (0.25%) or lactic acid (0.35%) alone, and then in combination with P. acidilactici K10 (10^5 CFU/g of sample). Combined treatment of P. acidilactici K10 with lactic acid showed the most inhibitory effect: a 2.8-$log_{10}$-unit reduction of E. coli O157:H7 in ground beef during storage at $4^{\circ}C$. This result suggests that the combination of bacteriocin-producing P. acidilactici K10 and organic acids has great potential as a food biopreservative by inhibiting the growth of E. coli O157:H7.

한약재 복합 추출물이 항산화 및 항노화에 미치는 영향 (Anti-oxidation and Anti-aging Effect of Mixed Extract from Korean Medicinal Herbs)

  • 황재규;윤종국;한길환;도은주;이진상;이은주;김종부;김미려
    • 대한본초학회지
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    • 제26권1호
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    • pp.111-117
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    • 2011
  • Objectives : The present study was designed to investigate effects of mixed extract from korean medicinal herbs (MIX) on oxidation/reduction reaction-related and aging-related enzyme in vitro. Methods : We performed MTT assay, collagenase inhibition assay, elastase inhibition assay, tyrosinase inhibition assay, DPPH free radical scavenging assay, SOD-like activity and xanthine oxidase inhibition assay. Results : Recently, many studies have reported that elastin is also involved in inhibiting or repairing wrinkle formation, although collagen is a major factor in the skin wrinkle formation. The MIX showed 97% inhibition of collagenase activity, and 64% inhibition of elastase activity at 1 mg/ml concentration of MIX, next only to positive control, which indicate good efficacy for anti-wrinkle ingredient. Also it's treatment showed 34% inhibition of tyrosinase activity, to relate whitening effect, at the same dose of MIX. Antioxidant activities were determined by DPPH radical scavenging, xanthine oxidase (XO) inhibiting activity and SOD-like activity. Also these scavenging, XO-inhibiting and SOD-like activities were measured in 91%, 80%, and 63% inhibition, respectively, at a treated dose of 1 mg/ml, compare to control. Conclusions : These results suggest that possibility of mixed korean medicinal herbs as a functional ingredient for anti-wrinkle and whitening, anti-oxidation and anti-aging cosmetic formula.

조협 추출물이 HaCaT cells의 항염증과 SEB-1 cells의 피지분비 억제에 미치는 영향 (The Effects on Anti-inflammatory Action in HaCaT Cells and Inhibiting Sebum Secretion in SEB-1 Cells by Gleditsiae Fructus Extract)

  • 구은진;한재경;김윤희
    • 대한한방소아과학회지
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    • 제30권2호
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    • pp.96-106
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    • 2016
  • Objectives The purpose of this study is to investigate the effects of Gleditsiae Fructus 70% EtOH extract (JS_E) on anti-inflammatory action in HaCaT cells (A spontaneously immortalized human keratinocyte cell line) and inhibiting triglyceride genesis in SEB-1 cells (Immortalized human sebocyte). Methods The anti-inflammatory effect of JS_E was analyzed by enzyme-linked immunosorbent assays (ELISA) which measured levels of IP-10, RANTES and MDC in HaCaT cells. Also the effect on secretion of sebum of JS_E was analyzed by TG-S kit which measured the quantity of triglyceride in SEB-1 cells. Results JS_E inhibited IP-10, RANTES and MDC expression in a dose dependent manner. IP-10 expression was inhibited significantly in comparison to TNF-${\alpha}$ and IFN-${\gamma}$ recombination (TI) control group at concentration of JS_E $200{\mu}g/ml$ and RANTES and MDC expressions were inhibited significantly at concentration of JS_E 100, $200{\mu}g/ml$. JS_E also inhibited triglyceride secretion of SEB-1 cells significantly in comparison to the control group in a dose dependent manner. Conclusions This study shows that JS_E has the effects of anti-inflammatory action and inhibiting sebum secretion. According to these results, JS_E can be used for treating skin diseases such as acne and dermatitis caused by inflammation and excessive secretion of sebum by controlling the activity of the HaCaT and SEB-1 cells.

가다랑어 자숙액에서 분리한 히스티딘 함유 저분자 펩타이드의 항산화 효과 (Antioxidant Effect of Histidine Containing Low Molecular Weight Peptide Isolated from Skipjack Boiled Extract)

  • 정효숙
    • 한국식품조리과학회지
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    • 제23권2호통권98호
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    • pp.221-226
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    • 2007
  • This study was carried out to investigate the optimun conditions for the isolation of low molecular weight peptides containing histidine, and to evaluate the antioxidant effects of skipjack boiled extracts(SBE). The results are summarized as follows : L-histidine contents of the ordinary muscle and dark muscle extracts were $ 83.1{\pm}1.75{\mu}M/g\;and\;11.0{\pm}2.39\;{\mu}M/g$, respectively. The L-histidine level of the dark muscle was much lower than that of ordinary muscle in the SBE. The extracts were treated with alcalase and neutrase under different pH levels, temperatures, and times. The optimum hydrolysis conditions of SBE were pH 7.0 and a $60^{\circ}$C temperature for 2 hr in the batch reactor, which hydrolyzed 63% of the SBE. HPLC analysis showed a removing effect of the ultrafiltration permeate (UFP) to high molecular weight impurities in SBE. SBE and pure carnosine participated as inhibiting agents to, which was confirmed through the autoxidation processing of linoleic acid. UFP treatment improved the inhibiting ability of SBE to the autoxidation of linoleic acid. The reducing power of the UFP-treated ordinary muscle extracts were 10-fold higher than the dark muscle extracts, and 0.7-fold higher than 20 mM pure carnosine. The UFP-treated ordinary muscle extracts had greater reducing power activity than pure carnosine. The scavenging activities on DPPH radical of the different treated-SBE and pure carnosine were also investigated. Scavenging activities of the ordinary and dark muscle extracts and the pure carnosine were 90%, 70%, and 45%, respectively. In summary, Skipjack boiled extracts (SBE) demonstrated that low molecular weight peptides containing histidine are capable of inhibiting lipid oxidation. They also possessed effective abilities as free radical scavengers and reducing agents, and these activities may increase with increasing concentrations.

The Effect of Chinese Herbs on Acne Pathogens

  • Tseng, Wen-Kai;Lin, Shiann-Tsai;Chen, Yi-Shyan;Kwan, Chang-Chin
    • 대한화장품학회:학술대회논문집
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    • 대한화장품학회 2003년도 IFSCC Conference Proceeding Book II
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    • pp.1-11
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    • 2003
  • Chinese herbs have been used for a long period of time and less side effects than synthesized chemical drugs. Therefore, using Chinese herbs as natural additives in cosmetics becomes popular in recent years. The methanol extracts of Scutellariae Radix, Lithospermi Radix, Lonicerae Flos, Andrographitis. Herba, Angelicae Dahuricae Radix, Ligustici Rhizoma et Radix, Hedyotis Diffusae Herba, Isatidis Folium, Magnoliae Liliflorae Flos, Forsythiae Fructus, Anmarrhenae Rhizoma, Spirodelae Herba, Gardeniae Fructus, Sophorae Flavescentis Radix, Coptidis Rhizoma, Prunellae Spica, Equiseti Hiemalis Herba, Gentianae Radix, Moutan Radicis Cortex, Fraxini Cortex, Lycii Radicis Cortex, Violae Herba, Lophatheri Herba, Matricariae chamomillae Flos, Taraxaci Herba and Scutellariae Barbatae Herba are used to test the efficiency of inhibiting acne pathogens. Twenty-six Chinese herbs are extracted by methanol, and then condensed to dried powder. These extracts are divided into water-soluble part and DMSO soluble part. These two type solutions are tested for the effect on acne pathogens by paper disc diffusion method. The results show that the substances of water soluble part which are Coptidis Rhizoma, Moutan Radicis Cortex, Scutellariae Barbatae Herba have medium to high activity of inhibiting acne pathogents, and the substances of DMSO soluble part which are Coptidis Rhizoma, Ligustici Rhizoma et Radix, Sophorae Flavescentis Radix, Moutan Radicis Cortex, Scutellariae Radix, Scutellariae Barbatae Herba also have medium to high activity of inhibiting acne pathogens. Using Chinese herbs as natural additives in cosmetics is convenience and valuable application in cosmetceutical research and development. Therefore, it is worth that re-investigation and find out the potential of Chinese herbs being use in cosmetics.

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고려인삼종자(高麗人蔘種子)의 발아특성(發芽特性)에 관(關)한 연구(硏究) (Studies on the Germination Characters of Korean Ginseng (Panax ginseng C.A. Meyer) Seed)

  • 원준연;조재성
    • 농업과학연구
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    • 제15권1호
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    • pp.47-68
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    • 1988
  • 고려인삼종자(高麗人蔘種子)의 미숙배(未熟胚) 생장(生長) 최적조건(最適條件), 배숙종자(胚熟種子)의 유안타파(休眼打破) 및 발아최적조건(發芽最適條件)을 구명(究明)하는 한편 종자내(種子內)에 존재(存在)할 것으로 추측(推測)되는 발아억제물질(發芽抑制物質)을 추구(追究)하기 위하여 본(本) 연구(硏究)를 수행(遂行)하였던 바 그 결과(結果)를 요약(要約)하면 다음과 같다. 1. 내과피(內果皮)의 존재(存在)는 미숙배(未熟胚)의 생장(生長)을 현저(顯著)히 억제(抑制)하였으며 내과피(內果皮)의 유무(有無)에 관계(關係)없이 $15^{\circ}C$에서 배(胚)의 생장(生長)이 가장 왕성(旺盛)하였고 회귀분석(回歸分析)에 의한 배생장(胚生長) 최적온도(最適溫度)의 추정치(推定値)는 $18^{\circ}C$내외(內外)였다. 2. 수확직후(收穫直後) 미숙배종자(未熟胚種子) 파종시(播種時) 묘상(苗床)에서의 배생장(胚生長) 및 발아율(發芽率)은 개갑처리종자(開匣處理種子)의 배생장(胚生長) 및 발아율(發芽率)과 차이(差異)가 없었다. 3. 개갑처리전(開匣處理前) 미숙배종자(未熟胚種子)를 $30^{\circ}C$이상(以上)의 고온(高溫)에서 24시간(時間), 10일이상(日以上)의 침지처리(浸漬處理)는 배(胚)의 생장(生長) 및 발아율(發芽率)을 현저(顯著)히 지연(遲延)시켰다. 4. 미숙배종자(未熟胚種子)의 배생장(胚生長)은 $10^{\circ}C$에서 거의 정지상태(停止狀態)이나 $20^{\circ}C$에서 50일간(日間) 치상후(置床後) 계속(繼續) $10^{\circ}C$에서 50일간(日間) 치상(置床)할 경우(境遇) 생장(生長)이 현저(顯著)히 촉진(促進)되어 $20^{\circ}C$에서만 100일간(日間) 개갑(開匣)시킨 종자(種子)보다 배율(胚率)이 크게 증가(增加)되었다. 5. 개갑(開匣)이 완료(完了)된 종자(種子)의 계속적(繼續的)인 배생장(胚生長)은 $10^{\circ}C$에서 촉진(促進)되었으나 발아율(發芽率)은 $5^{\circ}C$에서 100일간(日間) 저온처리(低溫處理)한 종자(種子)에서 높았고 발아소요일수(發芽所要日數)도 짧았다. 6. 개갑(開匣)된 종차(種子)의 저온처리직전(低溫處理直前) 혹은 과정중(過程中) 침지(浸漬) 또는 20일간(日間) $20^{\circ}C$로의 저온상승처리(溫度上昇處理)는 저온처리중(低溫處理中)의 배생장(胚生長) 및 발아(發芽)를 현저(顯著)히 저해(沮害)하였다. 7. 저온처리(低溫處理)를 완료(完了)한 종자(種子)는 $10^{\circ}C$에서 최적(最高)의 발아율(發芽率)을 보였고 발아최적토양수분(發芽最適土壤水分)의 추정치(推定値)는 62.5%였으며 높은 산소요구도(酸素要求度)를 가지고 있었다. 8. 마쇄(磨碎)된 인삼종자(人蔘種子)의 증류수추출물(蒸溜水抽出物)만이 참깨, 조 및 콩의 발아억제효과(發芽抑制效果)를 뚜렷이 나타내었으며 개갑종자(開匣種子)보다는 미개갑종자추출물(未開匣種子抽出物)의 억제효과(抑制效果)가 더 컸고, 추출온도(抽出溫度)에 따른 억제효과(抑制效果)의 차이(差異)는 인정(認定)되지 않았다. 9. 인삼(人蔘)의 장육(醬肉), 잎, 뿌리 및 건조(乾操)한 뿌리의 물추출물(抽出物)도 참깨 및 인삼(人蔘)의 유묘생육(幼苗生育)을 현저(顯著)히 억제(抑制)하는 효과(效果)를 나타내었다. 10. 인삼(人蔘)의 종자(種子), 잎 및 뿌리의 증류수추출물(蒸溜水抽出物)은 진균(眞菌)의 발아(發芽) 및 균사생장(菌絲生長)을 크게 억제(抑制)하였으나 세균(細菌)의 증식(增殖)에는 영향(影響)을 미치지 않았다. 11. 인삼종자(人蔘種子)의 물추출물중(抽出物中) 분자량(分子量) 3,000이하(以下)의 저분자물질(低分子物質)에서 참깨유묘(幼苗)의 생육억제효과(生育抑制效果)가 뚜렷하였고, 분자량(分子量) 10,000이상(以上)의 고분자물질(高分子物質)에서도 억제효과(抑制效果)를 나타냈다.

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Analysis of Composition and Activity of Essential Oil from Chrysanthemum zawadskii var. latilobum and C. indicum against Antibiotic-Resistant Pathogenic Bacteria

  • Byun, Youn-Hee;Shin, Seung-won
    • Natural Product Sciences
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    • 제14권2호
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    • pp.138-142
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    • 2008
  • The composition of essential oils from Chrysanthemum zawadskii var. latilobum and C. indicum were analyzed and compared. The results of gas chromatography-mass spectrometry revealed there were distinctly different compositional patterns between C. zawadskii var. latilobum and C. indicum essential oils. The combinatorial effect of the oil of C. zawadskii var. latilobum and C. indicum, with various antibiotics was assessed against antibiotic-susceptible and -resistant strains of Staphylococcus aureus and Streptococcus pneumoniae. The essential oil fraction significantly inhibited most of the tested antibiotic-susceptible and -resistant strains of S. pneumoniae, with minimum inhibiting concentrations (MICs) ranging from 0.5 to 4.0 mg/ml. The fractional inhibiting concentration indices (FICIs) of the oils when combined with antibiotics against S. aureus and S. pneumoniae ranged from 0.26 to 0.75, and showed synergistic or additive effects.