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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
91

Evaluación in vitro del efecto antibacteriano y citotóxico del extracto metanólico de Physalis peruviana (capulí) sobre cepas de Streptococcus mutans (ATCC25175), Streptococcus sanguinis (ATCC 10556)

Huertas Campos, Mariana Cecilia 07 November 2015 (has links)
Objective: The aim of this study was to evaluate the antibacterial effect of Physalis peruviana on Streptococcus mutans (ATCC 25175) and Streptococcus sanguinis (ATCC 10556). Materials y Methods: The present in vitro experimental study was to determinate the antibacterial effect of the fruit of Physalis Peruviana’s methanolic extract against Streptococcus mutans (ATCC 25175) and Streptococcus sanguinis (ATCC 10556) and Clorhexidine (CHX) as control group, the minimum inhibitory concentration (MIC) and citotoxicity. For the antibacterial assay, 14 wells were prepared from the extract and Clorhexidine 0.12% as a positive control for each bacteria. The method used was agar diffusion test preparing wells with the experimental solutions cultivated in anaerobic conditions for 48 hours at 37ºC, after this time, the growth inhibition was analysed in milimiters. with wells. Results: It was found antibacterial effect of the metanolic extract of the fruit in Streptococcus mutans and Streptococcus sanguinis. In the first group, the inhibicion halo of the extract was 19.15mm ± 1.83 and for Clorhexidine 25.78mm ± 2.27, while for the group of Streptococcus sanguinis, the Physalis Peruviana’s extract had 18.56mm ± 1.59 for inhibicion halos and 22.92mm ± 1.96 for Clorhexidine. On the other hand, the extract’s MIC was 50mg/ml. Finally, the methanolic extract of Physalis peruviana inhibited 50% of viability cells (CC50) at 241.01ug/ml concentration. Conclusions: The methanolic extract of Physalis Peruviana had antibacterial effect against Streptococcus mutans and Streptococcus sanguinis. Besides, this fruit wasn’t citotoxic for Jurkat’s line cell. / Objetivo: evaluar in vitro el efecto antibacteriano del extracto metanólico de Physalis peruviana sobre cepas de Streptococcus mutans (ATCC 25175) y Streptococcus sanguinis (ATCC 10556). Materiales y Métodos: el presente estudio fue de tipo experimental in vitro. Se evaluó el efecto antibacteriano del extracto metanólico del fruto de Physalis peruviana frente a cepas de Streptococcus mutans (ATCC 25175) y Streptococcus sanguinis (ATCC 10556) y la Clorhexidina (CHX) como grupo control, determinando la concentración mínima inhibitoria (CMI) y citotoxicidad. Para realizar la actividad antibacteriana se trabajó con una muestra de 14 pocillos por grupo, mediante el método de difusión en agar con pocillos. Por otro lado, para la MIC se utilizó el método de dilución en caldo en medio Brain Heart infusión Broth (BHI) y para evaluar la citotoxicidad se empleó la línea celular Jurkat mediante el ensayo de MTT. Resultados: se observaron halos de inhibición de 19.15mm ± 1.83 para el extracto de physalis peruvina y 25.78mm ± 2.27 para la clorhexidina sobre Streptococcus mutans, mientras que para el grupo de Streptococcus sanguinis, se observaron halos de inhibición de 18.56mm ± 1.59 del extracto de la planta y 22.92mm ± 1.96 para la clorhexidina. Por otro lado, la MIC del extracto fue de 50mg/ml. Finalmente, el extracto metanólico de la Physalis peruviana inhibió la viabilidad celular al 50% (CC50) en una concentración de 241.01ug/ml. Conclusiones: el extracto metanólico de Physalis Peruviana tuvo efecto antibacteriano sobre cepas de Streptococcus mutans y Streptococcus sanguinis. Además, no fue citotóxico para la línea celular Jurkat. / Tesis
92

A calcium-binding protein CAS regulates the CO2-concentrating mechanism in the green alga Chlamydomonas reinhardtii / 緑藻クラミドモナスにおいてカルシウム結合タンパク質CASはCO2濃縮機構を制御する

Wang, Lianyong 23 January 2017 (has links)
京都大学 / 0048 / 新制・課程博士 / 博士(生命科学) / 甲第20099号 / 生博第359号 / 新制||生||47(附属図書館) / 33215 / 京都大学大学院生命科学研究科統合生命科学専攻 / (主査)教授 福澤 秀哉, 教授 佐藤 文彦, 教授 河内 孝之 / 学位規則第4条第1項該当 / Doctor of Philosophy in Life Sciences / Kyoto University / DFAM
93

Xylan Biosynthesis in Grasses: Uncovering Specific Protein-Protein Interactions (PPIs) between Rice Members of the GT43 and GT47 Families and their Implication in Plant Development

Javaid, Tasleem January 2022 (has links)
No description available.
94

THE ROLE OF GAB2 PHOSPHORYLATION SITES IN HEMATOPOIETIC SIGNALING

Verma, Sheetal 17 May 2010 (has links)
No description available.
95

Characterization of L1, the metallo-Β-lactamase from <i>Stenotrophomonas maltophilia</i>

Garrity, James D. 10 August 2004 (has links)
No description available.
96

GENERATION, CLONING, AND SMALL-SCALE EXPRESSION OF SITE-DIRECTED MUTANTS OF HEN EGG WHITE LYSOZYME IN PICHIA PASTORIS

Patton, Nichole L. 28 September 2012 (has links)
No description available.
97

Generation of Human Aldose Reductase Mutants of Cys298

Oder, Daniel O. 24 September 2015 (has links)
No description available.
98

Characterization of the <i>CG4749</i> gene in <i>Drosophila Melanogaster</i>

Sun, Xiuli January 2005 (has links)
No description available.
99

Molecular Interactions of Arabinogalactan-Proteins (AGPs) in Tobacco Bright Yellow-2 Cultured Cells and Functional Identification of Four Classical AGPs in Arabidopsis

Sardar, Harjinder Singh 28 September 2007 (has links)
No description available.
100

Modification of the protein matrix around active-and inactive-branch pheophytins by site-directed mutagenesis; affects on energy and electron transfer processes in photosystem II

Xiong, Ling 20 December 2002 (has links)
No description available.

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