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 15 of 15 for “"Oral microbiota"”.
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The oral microbiota of Irish children in health and disease: a longitudinal and cross sectional study
The oral cavity harbours a very rich and diverse microbial community. In the last decade, the oral microbiota of children and adults has been studied in detail using continuously developing DNA sequencing methods. In particular focusing on the oral microbiome changes in the presence of diseases …
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DECIPHERING THE ORAL MICROBIOTA IN FOOD ALLERGY: INSIGHTS INTO THE CANDIDATE PHYLA RADIATION AND NOVEL METHODOLOGICAL APPROACHES
… influenced by multiple factors, including the oral microbiota. During my PhD, I contributed to studies investigating the oral microbiota in food-allergic children, with a particular focus on the Candidate Phyla Radiation (CPR), an elusive bacterial group increasingly implicated in health and …
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IMPROVEMENT OF METAGENOMIC TECHNIQUES TO BETTER UNDERSTAND THE ROLE OF CANDIDATE PHYLA RADIATION IN FOOD ALLERGIES
… and can be triggered by various factors. The oral microbiota plays a critical role in the development of immune tolerance and is one of the factors involved. During my PhD I participated in a study in which the oral microbiota of food-allergic children was compared to healthy controls, in …
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Probiotics in periodontal therapy
The use of oral probiotics has garnered more attention during the last several decades. Nevertheless, it is vital to understand that each of the suggested health advantages must be individually investigated for each bacterial strain. It seems that the oral microbiota as well as immune responses are …
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The involvement of bacteria in the progression of Barrett’s oesophagus to adenocarcinoma of the oesophagus
… in vitro models were designed to create an oral microbiota, from which an oesophageal community could develop. Microbial analysis identified a shift in oesophageal population composition with disease progression, with an incremental increase in total eubacterial scores related to the …
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Virulence gene expression of three hypervirulent S. pyogenes M1T1 and membrane vesicles isolation
… has recently been devoted to the analysis of the oral microbiota to develop bacteriotherapy focused on prevention and/or treatment of upper respiratory tract infections. In this regard, a key species is Streptococcus salivarius, a lactic acid bacterium that is mainly encountered in the mouths of …
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Understanding the role of human microbiota on sensory perception
… by interactions between the gastrointestinal microbiota and the chemosensory systems. Despite growing interest, the sensory-oriented microbiome field suffers from obvious limitations due to its recent emergence. As a result, little efforts has been devoted to elucidating: a) the associations …
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Perfil epidemiológico das micoses superficiais causadas por leveduras do gênero Candida em laboratório de João Pessoa-PB
… individuals have Candida as part of the normal oral microbiota, with C. albicans accounts for 70% to 80% of the isolates. Fungal infections are not notice a ble diseases, so do not have exact idea of the exten sion problem in the state of Paraíba. This fact shows the need to perform periodic …
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The Role of Oral Nitrate Reducing Bacteria in Cardiovascular Health: Impacts of Diet and Exercise
This thesis investigated the important role of oral bacteria in blood pressure regulation and vascular function through the NO3--NO2--NO pathway following exercise or dietary interventions. Study 1 examined the effect of antibacterial mouthwash on the oral microbiome and nitrate metabolism in …
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Metagenomic analysis of the periodontal and peri-implant microbiome: a link between health and disease status
The oral cavity has been becoming one of the most well-studied microbiomes after the introduction of new genomic technologies, including next-generation sequencing and bioinformatic analysis. Metagenomic studies of the oral microbial community have revealed the complexities of the oral cavity, that …
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Laying the Genetic and Molecular Foundation for the Study of Fusobacterium Nucleatum in Relation to Human Health and Disease
… bacterium that is a member of the human oral microbiota. Although it is a normal resident of the mouth, it is associated with a number of human diseases including: sepsis, inflammatory bowel disease (IBD), and colorectal cancer (CRC). Despite the important association of F. nucleatum with …
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A drug-free theranostic approach for localized and systemic diseases via nanoparticles
… study without changing the diversity of the oral microbiota. The nanoparticles developed in the previous chapters were aptly surface functionalized and were used to target the bone microdamage in the following chapter. The distinct X-ray characteristic of the hafnium oxide nanoparticles made …
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An investigation of optical methods for the mapping of microgradients of hydrogen-ion concentration within dental biofilms
The oral cavity is the most complex and accessible microbial ecosystem in the human body. It is the entrance to the respiratory and gastrointestinal tracts and, as such is exposed to unique environmental constraints. The human mouth is home to a myriad of microorganisms, many of which are …
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Microbial relationships between breastfeeding mothers and infants and response to maternal probiotic intervention
… cytokines in HM promote tolerance to resident microbiota. However, HM varies among women; therefore, modulating composition may augment infant microbial development, and thus long-term health. The origin of the HM microbiota and its role in infant gut microbiota development remain unclear. In …
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MUTACIN IV PRODUCTION IN STREPTOCOCCUS MUTANS UA159: CHARACTERIZATION, REGULATION, AND MECHANISM OF SELF-IMMUNITY
Streptococcus mutans, an oral pathogen, is considered as a principle etiological agent of dental caries. To colonize successfully in the oral cavity, this organism encounters fierce competition with other oral microbiota and this process is facilitated by ribosomally synthesized small cationic …