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Eveline Kelle Ursulino Pontes,Hider Machado Melo,Jose´ Walter Arau´ jo Nogueira,Nairley Cardoso Sa´ Firmino,Ma´rio Geraldo de Carvalho,Francisco Eduardo Araga˜o Catunda Ju´nior,Theodora Thays Arruda C 한국식품과학회 2019 Food Science and Biotechnology Vol.28 No.3
Medicinal plants with antimicrobial action havebeen investigated for uses against biofilms, among which,Cymbopogon nardus, citronella, stands out as a promisingspecies. The present study aims to evaluate the antimicrobialand antibiofilm action of the essential oil of C. nardus (EOCN) and geraniol on Gram-negative and positivebacteria from the determination of minimum inhibitoryconcentration (MIC) and minimum bactericidal concentrationand inhibition of biofilms. In the results, the EOCNproduced a 41 mm halo on S. aureus, which was susceptiblewith MIC values of 0.5 and 0.25 mg/mL for theEOCN and geraniol respectively, both with bactericidaleffect. The antibiofilm action was confirmed, the EOCNand geraniol reduced the biofilm biomass of S. aureus up to100% between 0.5 and 4 mg/mL concentrations. Thereduction of cell viability was 0.25 and 1 mg/mL, ofEOCN and geraniol, respectively. EOCN and geraniol wereshown to be promising antibiotic against S. aureus.
( Bruno P. Carvalho ),( Andrielle T. M. Cunha ),( Bianca D. M. Silva ),( Regivaldo V. Sousa ),( Ligiane O. Leme ),( Margot A. N. Dode ),( Eduardo O. Melo ) 한국축산학회(구 한국동물자원과학회) 2019 한국축산학회지 Vol.61 No.2
The hG-CSF (human Granulocyte Colony-Stimulating Factor) is a growth and stimulation factor capable of inducing the proliferation of bone marrow cells, several types of leukocytes, among other hematopoietic tissue cells. hG-CSF is used in used to treat anomalies that reder a small number of circulating white blood cells, which may compromise the immune defenses of the affected person. For these reasons, the production of hG-CSF in a bioreactor system using the mammary gland of genetic modified animals is a possibility of adding value to the bovine genetic material and reducing the costs of hG-CSF production in pharmaceutical industry. In this study, we aimed the production of transgenic hG-CSF bovine through the lipofection of bovine primary fibroblasts with an hG-CSF expression cassette and cloning these fibroblasts by the somatic cell nuclear transfer (SCNT) technique. The bovine fibroblasts transfected with the hG-CSF cassette presented a stable insertion of this construct into their genome and were efficiently synchronized to G0/G1 cell cycle stage. The transgenic fibroblasts were cloned by SCNT and produced 103 transferred embryos and 2 pregnancies, one of which reached 7 months of gestation.