Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 37 for “"s.aureus"”.
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Detection of staphylococcal enterotoxins in patients with rheumatoid arthritis or closed fracture
… patients for the presence of Staphylococcus aureus. Background: RA is a disease of unknown etiology; with a pathogenesis that is due to a mixture of genetic, immunological and environmental factors. A T-cell immune response to the presence of PTSAgs in the joints of RA patients has previously …
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Synthesis and Antimicrobial Activity of Half-Sandwich Ir(III), Rh(III), and Co(III) Complexes
… for each organism studied (Staphylococcus aureus or Mycobacteria). Each of the D/L-amino acids formed a diasteromeric complex with chiral centers on both the metal center and amino acid ligand. The unique chirality of each center elicits different antimicrobial activity against the …
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ZOONOSI, RESISTENZE ANTIMICROBICHE E INNOVAZIONE NELL¿ALLEVAMENTO DEL BOVINO DA LATTE: APPROCCI INTEGRATI SECONDO IL PARADIGMA ONE HEALTH
… In this context, zoonotic pathogens such as S.aureus and S.agalactiae represent a complex threat, capable of crossing species barriers and spreading resistance genes. This thesis adopts an integrated One Health approach to analyse the spread of resistant bacterial strains in milk, assess the …
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Modulating activity of vancomycin and daptomycin on the expression of gene involved in reduced glycopeptide susceptibility in Staphylococcus aureus
… di infezioni causate da Staphylococcus aureus meticillino-resistenti (Methicillin Resistant S.aureus-MRSA), ha portato all'insorgenza di ceppi con ridotta sensibilità a vancomicina noti come heterogeneous Vancomycin-Intermediate S.aureus (hVISA) e Vancomycin-Intermediate S.aureus …
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A bioactive peptide from the skin secretion of the Chinese Torrent Frog, Amolops wuyiensis
… against the gram-positive bacterium S.aureus, gram-negative bacterium E.coli and pathogenic yeast C.albicans. Thus, QUB-1402 could expand the potential drug discovery and development pipeline directed towards alleviation of serine protease-mediated pathologies.<br/>
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Analysis of a novel antimicrobial peptide QUB-1746 from the skin secretion of the frog, Kassina senegalensis
… only against the Gram-positive bacterium, S.aureus with an MIC value of 32 μM. The results of MTT assays showed that QUB-1746 had inhibitory activity against human lung cancer cells, H23 with an IC50 of 40.3 μM. Also, QUB-1746 possessed little haemolytic activity at less than 20% at 512 …
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A novel bioactive peptide from the skin secretion of Hylarana nigrovittata
… against three micro-organism models (E.coli, S.aureus, and C.albicans). Moreover QUB-1704 showed no haemolytic activity against horse blood cells. It showed anticancer activity against H23 cell line at the concentration of 10-4 M. In addition, QUB-1704 showed trypsin inhibitory activity and the …
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QUB-2577: A Bioactive Peptide from Pickerel Frog (Rana palustris) Skin Secretion
… (MIC = 32 µmol/L), Gram-positive bacteria S.aureus (MIC = 4 µmol/L), and the yeast C.albicans (MIC = 64 µmol/L). The QUB-2577 was also found to exhibit anticancer activity against U251-MG, H157, PC-3 cell lines at the concentration of 10-4 M, but the anticancer effect of the peptide decreased …
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QUB-1157: a bioactive peptide from the skin secretion of the Mexican leaf frog (Pachymedusa dacnicolor)
… activity against C.albicans, E.coli and S.aureus. QUB-1157 also had no cytotoxicity on horse erythrocytes. However, QUB-1157 inhibited the proliferation of cancer cell line H-157 and U251MG. All these data indicate that it is probably necessary to research more about the structure-function …
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Studies on a bioactive peptide QUB-2044 from the skin secretion of the Chinese frog, Odorrana schmackeri
… exerted a strong inhibitory activity against S.aureus and a relatively moderate one against E.coli and C.albicans with the MIC values being 16 μM, 32 μM and 32 μM, respectively, and showed mild cytotoxicity against red blood cells at these concentrations. However, the peptide did not show …
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Identification and functional assessment of a bioactive peptide QUB-2984 from the skin secretion of the red-eyed tree frog, Agalychnis callidryas
… The MIC value against gram-positive bacteria S.aureus was 2μM, gram-negative bacteria E.coli was 2μM, and against the pathogenic yeast C. albicans was 8μM. QUB-2984 showed anticancer potency at the minimum concentration of 10-5M towards human cancer cells. In terms of haemolysis, it caused …
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Discovery and functional evaluation of a host defense peptide from Rana amurensis
… QUB-2566 was found to inhibit the growth of S. aureus and E. coli from a peptide concentration of 1µM; however, it required higher peptide concentration to completely inhibit the growth of these bacteria. Interesting, this peptide exhibited better bactericidal effect against E.coli (MBC=32 μM) …
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Studies on a novel bioactive peptide, QUB-1264, extracted from the skin secretion of Odorrana schmackeri
… found to possess selective activity against S.aureus with an MIC value of 128 μM, and an anticancer assay showed that it was active against H157 cancer cells with an IC50 value of 10-7 M. QUB-1264 also showed mild cytotoxicity against red blood cells at these concentrations. In conclusion, …
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An antimicrobial peptide QUB-1925 from scorpion venom of Androctonus bicolor: molecular cloning of biosynthetic precursor-encoding cDNA and bioactivity study
… inhibition effect on gram-positive bacteria, S. aureus, and gram-negative bacterium, E. coli, but little effect against the fungi, C. albicans. More importantly, QUB-1925 was found to induce a very low level of haemolysis at the minimal inhibitory concentration (MIC) of 8 μM ( against S.aureus) …
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The discovery of a novel peptide, QUB-2274, from the defensive skin secretion of Rana amurensis
… activity towards the Gram-positive bacterium S.aureus, the Gram-negative bacterium E.coli, and the yeast C.albicans, but with a high haemolytic activity. It also had a strong anti-proliferative effect on the four tested human cancer cell lines: PC-3, NCI-H157, MDA-MB-435S and …
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Assessing bioactivity of a peptide from the skin secretion of Rana amurensis
… was eventually found to show activity against S.aureus with the MIC at 64μM and the MBC at 128μM, but it was failed to inhibit the growth of E.coli and C.albicans. Also, QUB1301 was found to have low haemolytic activity at the concentration up to 512 μM. The growth of four cancer cell lines …
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Studi etnobotani dan mikrobiologi tumbuhan berpotensi obat penyakit kulit bisul (Furunkel) pada masyarakat Kecamatan Jrengik Kabupaten Sampang Madura
… patogen penyebab bisul yakni Staphylococcus aureus. Penelitian etnobotani dilakukan melaui observasi dan wawancara semi terstruktur. Responden penelitian berjumlah 26 responden Desa Kotah, 23 responden Desa Jungkarang dan 25 responden Desa Jrengik. Desa pada Kecamatan Jrengik tersebut …
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Identification and functional study of a novel antimicrobial peptide, QUB-2014, from the skin secretion of the frog, Phyllomedusa tomopterna
… activity against E.coli (ATCC CRM 8739), S.aureus (ATCC CRM 6538) and C.albicans (ATCC CRM 10231) with minimum inhibitory concentrations of 16 μM, 4 μM and 32 μM, respectively. This peptide also showed anticancer cell proliferative activity on lung adenocarcinoma cells at a concentration of …
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Identification, isolation and bioactivity assessment of a novel peptide from the skin secretion of the Tiger-striped Leaf Frog (Phyllomedusa tomopterna)
… antimicrobial activities towards E. coli, S.aureus, and C.albicans. The MICs were 8 μM, 4 μM, and 32 μM. QUB-2982 also inhibited the growth of three kinds of human cancer cells: U251MG, PC-3, and H157. At the concentration of 10-4 μM, the cancer cell viabilities were 0.33 %, 1.33 %, and 3.33 …
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CARATTERIZZAZIONE IN VITRO DELLA RISPOSTA A STIMOLI INFETTIVI DELLE CELLULE EPITELIALI MAMMARIE BOVINE (BME-UV)
… based on BME-UV cell line, Staphylococcus aureus as a challenge to assess the interactions among epithelial cells and bacteria by measuring cytokine and three lysosomal enzymes, lysozyme lactoferrin and N-acetyl-b-D-glucosaminidase (NAGase), in S. aureus-stimulated MGEC. S.aureus strains …
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