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7841“…Twelve active components including costunolide and dehydrodehydrocostus lactone from the principal herb Radix Aucklandiae; naringin, hesperidin and neohesperidin from Fructus Aurantii; magnolol and honokiol from the ministerial herbs Cortex Magnoliae officinalis; aloe-emodin, rhein, emodin, chrysophanol and physcion from adjunctive and messenger herb Radix et Rhizoma Rhei were analyzed in the samples. …”
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7842por Tian, Lixia, Yang, Jiaqiang, Hou, Wenjie, Xu, Baoyun, Xie, Wen, Wang, Shaoli, Zhang, Youjun, Zhou, Xuguo, Wu, Qingjun“…Macrocyclic lactones such as abamectin and ivermectin constitute an important class of broad-spectrum insecticides. …”
Publicado 2013
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7843por Terwagne, Matthieu, Mirabella, Aurélie, Lemaire, Julien, Deschamps, Chantal, De Bolle, Xavier, Letesson, Jean-Jacques“…Here, we report data obtained from the use of a genetic tool allowing the in situ detection of long-chain N-acyl-homoserine lactones (AHL) activity at single bacterium level in Brucella melitensis. …”
Publicado 2013
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7844por da Costa, Emmerson C. B., Amorim, Raquel, da Silva, Fernando C., Rocha, David R., Papa, Michelle P., de Arruda, Luciana B., Mohana-Borges, Ronaldo, Ferreira, Vitor F., Tanuri, Amilcar, da Costa, Luciana J., Ferreira, Sabrina B.“…Several 1,2- and 1,4-pyran naphthoquinones were synthesized by a three-component reaction of lawsone, aldehyde (formaldehyde or arylaldehydes) and different dienophiles adequately substituted. …”
Publicado 2013
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7845por Kim, Won, Bae, Seyeon, Kim, Hyemin, Kim, Yejin, Choi, Jiwon, Lim, Sun Young, Lee, Hei Jin, Lee, Jihyuk, Choi, Jiyea, Jang, Mirim, Lee, Kyoung Eun, Chung, Sun G., Hwang, Young-il, Kang, Jae Seung, Lee, Wang Jae“…The L-gulono-γ-lactone oxidase gene (Gulo) encodes an essential enzyme in the synthesis of ascorbic acid from glucose. …”
Publicado 2013
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7846“…Tehranolide, natural sesquiterpene lactone with an endoperoxide group, has been shown to inhibit cell growth in cancer cells. …”
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7847por Bunet, Robert, Riclea, Ramona, Laureti, Luisa, Hôtel, Laurence, Paris, Cédric, Girardet, Jean-Michel, Spiteller, Dieter, Dickschat, Jeroen S., Leblond, Pierre, Aigle, Bertrand“…In addition, this PPTase seems to act in concert with the product of samL0372 to activate the ACP and/or PCP domains of the antimycin biosynthesis cluster which is also responsible for the production of volatile lactones.…”
Publicado 2014
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7848por Patel, Hitendra Kumar, Ferrante, Patrizia, Covaceuszach, Sonia, Lamba, Doriano, Scortichini, Marco, Venturi, Vittorio“…In this study we analyzed the presence and possible role of N-acyl homoserine lactone (AHL) quorum sensing in Psa. It was established that Psa does not produce AHLs and that a typical complete LuxI/R QS system is absent in Psa strains. …”
Publicado 2014
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7849por Monecke, Stefan, Stieber, Bettina, Roberts, Rashida, Akpaka, Patrick Eberechi, Slickers, Peter, Ehricht, Ralf“…It has been shown previously that high rates of methicillin- and mupirocin-resistant Staphylococcus aureus exist in the Caribbean islands of Trinidad and Tobago, as well as a high prevalence of Panton-Valentine leukocidin-positive S. aureus. Beyond these studies, limited typing data have been published. …”
Publicado 2014
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7850“…The formation of biofilm in a membrane bioreactor depends on the production of various signaling molecules like N-acyl homoserine lactones (AHLs). In the present study, a total of 200 bacterial strains were isolated from membrane bioreactor activated sludge and screened for AHLs production using two biosensor systems, Chromobacterium violaceum CV026 and Agrobacterium tumefaciens A136. …”
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7851“…The AdoMet analogues examined here were chosen for their putative inability to serve as precursors for the synthesis of the acylhomoserine lactone class of quorum sensing molecules. We now show that these AdoMet analogues can still function as methyl donors, for methylation of both DNA and catechol-based neurotransmitters. …”
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7852por Zhang, Jingjie, Gao, Guangxun, Chen, Liang, Li, Jingxia, Deng, Xu, Zhao, Qin-shi, Huang, Chuanshu“…Cheliensisine A (Chel A) as a novel styryl-lactone isolated from Goniothalamus cheliensis Hu has been indicated to be a chemotherapeutic agent in Leukemia HL-60 cells. …”
Publicado 2014
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7853por Monecke, Stefan, Müller, Elke, Dorneanu, Olivia Simona, Vremeră, Teodora, Ehricht, Ralf“…The prevalence of the Panton-Valentine leukocidin (PVL) was also high (31% among MRSA, 14% among MSSA). …”
Publicado 2014
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7854por Attien, Paul, Sina, Haziz, Moussaoui, Wardi, Zimmermann-Meisse, Gaëlle, Dadié, Thomas, Keller, Daniel, Riegel, Philippe, Edoh, Vincent, Kotchoni, Simeon O., Djè, Marcellin, Prévost, Gilles, Baba-Moussa, Lamine“…The susceptibility to antibiotics was determined by the disc diffusion method. The production of Panton-Valentine Leukocidin, LukE/D, and epidermolysins was screened using radial gel immunodiffusion. …”
Publicado 2014
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7855por Tiuman, Tatiana Shioji, Ueda-Nakamura, Tânia, Alonso, Antonio, Nakamura, Celso Vataru“…We verified cell death in amastigote forms of Leishmania amazonensis induced by the sesquiterpene lactone parthenolide. RESULTS: The tested compound was able to concentration-dependently affect axenic and intracellular amastigotes, with IC(50) values of 1.3 μM and 2.9 μM, respectively after 72 h incubation. …”
Publicado 2014
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7856“…A marked increase in canine leptospirosis was observed in Switzerland over 10 years with a peak incidence of 28.1 diagnosed cases/100,000 dogs/year in the most affected canton. With 95% affected dogs living at altitudes <800 m, the disease presented a seasonal pattern associated with temperature (r(2) 0.73) and rainfall (r(2) 0.39), >90% cases being diagnosed between May and October. …”
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7857“…The addition of sorbitol transforms reversible transitions into irreversible transitions while stabilizing the protein as the apparent T (m) increases linearly with sorbitol concentration. d-Glucono-1,5-lactone, a noncompetitive inhibitor in xylanase kinetics, and soluble xylan change irreversible processes into reversible processes at high protein concentration.…”
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7858“…We analysed the possible association of these results with characteristics such as methicillin resistance, Panton–Valentine leucocidin (PVL) positivity and clonality. …”
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7859por Nong, Xu-Hua, Wang, Yi-Fei, Zhang, Xiao-Yong, Zhou, Mu-Ping, Xu, Xin-Ya, Qi, Shu-Hua“…Seventeen lactones including eight territrem derivatives (1–8) and nine butyrolactone derivatives (9–17) were isolated from a marine-derived fungus Aspergillus terreus SCSGAF0162 under solid-state fermentation of rice. …”
Publicado 2014
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7860“…Parthenolide (PTL), a sesquiterpene lactone extracted from the shoots of Tanacetum parthenium, has been shown to possess anti-inflammatory properties in various diseases. …”
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