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.
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Showing 1 to 20 of 30 for “"Propionibacterium"”.
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Characterisation of propionibacterium acnes
Propionibacterium acnes forms part of the normal flora of the skin, oral cavity, large intestine and the external ear. Historically, P. acnes is considered to be of low virulence; however, in recent years it has been found as the aetiological agent in various pathologies including acne vulgaris, …
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Propionibacterium acnes and its phages
… harbors several different microorganisms, with Propionibacterium acnes being one of the most common bacteria. This Gram-positive anaerobe has long been attributed as the cause of acne vulgaris, and is known to cause severe inflammations on orthopedic implants. However, like most bacteria, P. …
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Purification and characterisation of the lipid macroamphiphiles of propionibacterium acnes.
… acne vulgaris, in addition to the presence of Propionibacterium acnes on the skin, changes in the composition of skin lipids has been identified as an important etiological factor in the development of the disease. To date, the LMAP of P. acnes has not been purified and, for this reason, the …
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Role of polymorphonuclear leukocytes in the tumoricidal activity of Propionibacterium acnes
… of mice with a mixture of tumor cells and Propionibacterium acnes were investigated. Tumor cells were injected intramuscularly into Balb/c mice either alone or together with P. acnes vaccine. The tumor cells were then removed from the injection site 12 hours after injection, and transferred …
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Gel-based proteomic comparison of two strains of Propionibacterium freudenreichii ssp. shermanii
The literature review describes the characteristics, uses and probiotic potential of propionibacteria and gives an overview of proteomic methods focusing on 2-DE studies related to probiotic bacteria and P. freudenreichii. The aim of the experimental part was to use 2-DE to obtain proteome maps of …
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The prevention of spoilage in fruit juices by alicyclobacillus acidoterrestris and propionibacterium cyclohexanicum
… A licyclobacillus acidoterrestris and Propionibacterium cyclohexanicum, both isolated from pasteurised contaminated fruit juice. A variety of media were tested to determine which supported optimal growth of A. acidoterrestris with Orange Serum Agar providing consistently high plate …
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Quality and storage stability of yoghurt produced from pigeon pea milk supplemented with Propionibacterium freudenreichii
Submitted in fulfilment of the academic requirements for the Degree in Master's in Food Science and Technology, Durban University of Technology, Durban, South Africa, 2017.
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Immunotherapeutic alteration of tumor-induced suppression of interleukin 2 and 3 production by Propionibacterium acnes vaccination
Previous reports indicate that anti-tumor activity arising from systemically injected P. acnes is macrophage-mediated, whereas anti-tumor activity arising from locally injected P. acnes is T cell-mediated. It is possible these P. acnes-induced cytotoxic T cells arise via the Interleukin cascade. …
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Semiquantitative und quantitative Charakterisierung der Zytokinantwort humaner Keratinozyten nach Stimulation mit Propionibacterium acnes und Koproporphyrin III
… to be induced by an immunological reaction to Propionibacterium acnes. Objectives In the present study we examined the local host response mechanism of keratinocytes 3 and 6 h after stimulation with viable and heat- killed P. acnes. Methods The quantitative expression of cytokines was measured …
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Use of cell wall-hydrolytic enzymes in studies of the reticuloendothelial-stimulatory properties of Propionibacterium acnes
Vaccines prepared from whole cells of heat-killed Propionibacterium acnes were treated with a variety of enzymes. Only two enzymes, lysozyme and a bacteriolytic enzyme from the common European limpet, Patella vulgata, were able to abrogate the splenomegaly-inducing activity of vaccines. …
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A novel two-component signal transduction system in propionibacterium acnes and its association with a putative extracellular signalling peptide
Propionibacterium acnes, a resident micro-organism of human skin, is thought to be involved in the development of inflammatory acne, which is an exclusive human disease affecting more than 80% of the whole population. Quorum sensing is the regulation of gene expression in response to cell density. …
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Bio-enrichment of vitamin B12 in plant-based food via fermentation
… were further tested alone and in co-culture with Propionibacterium strains in oat-based food matrices. Vitamin B12 levels were quantified using microbiological assays and HPLC-MS/MS during both strain selection and fermentation. Additionally, genetic analyses were conducted to investigate gene …
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Modulating acidity and bioactivities of sauerkraut with Proprionibacterium freudenreichii : A dissertation submitted in partial fulfilment of the requirements for the Degree of Master of Science in Food Innovation at Lincoln University
… at risk of deficiency. Studies have shown that Propionibacterium freudenreichii can be successfully co-fermented with Latic acid bacteria (LAB) to produce B12 in grain based substrates. In this study P. freudenreichii was inoculated into a traditional sauerkraut fermentation, resulting in …
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Anti-aging potential of some freshwater microalgae extracts
… testing was conducted on commensals, Propionibacterium acnes and Staphylococcus aureus. The results obtained indicate that the extracts contained phenols and sulfhydryl groupcontaining compounds that could be responsible for certain biological activities of importance to this study. …
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Propionyl holocarboxylase synthesis
… has been isolated from cell-free extracts of Propionibacterium shermanii. Although cell-free extracts of P. shermanii do not contain propionyl apo- or holocarboxylase, they do catalyze ATP-dependent propionyl holocarboxylase formation from d·biotin and rat liver propionyl apocarboxylase. …
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Topical Therapies for the Management of Recalcitrant Chronic Rhinosinusitis
… commensals Corynebacterium and Cutibacterium (Propionibacterium). In keeping with the improvement seen in the microbiome, a significant decrease in postoperative infections was noted following use of Chitogel.
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Detection of periodontal bacteria in atherosclerotic plaque
… and Mycobacterium tuberculosis) and commensal (Propionibacterium acnes and Staphylococcus epidermidis) species. Of the 160 isolates recovered P acnes (91%) was most frequently detected, followed by Lactobacillus spp. (3%), S. epidermidis (3%), S. mitis (3%) and S. sanguinis (1%). Challenge of …
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