Browsing NTNU Open by Author "Rudi, Knut"
Now showing items 1-17 of 17
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Allergy-related diseases and early gut fungal and bacterial microbiota abundances in children
Schei, Kasper; Simpson, Melanie Rae; Øien, Torbjørn; Salamati, Saideh; Rudi, Knut; Ødegård, Rønnaug (Journal article; Peer reviewed, 2021)Background The early gut microbiota has been proposed as an important link between environmental exposures and development of allergy-related diseases. Beyond the widely investigated associations between the gut bacterial ... -
Atlantic salmon raised with diets low in long-chain polyunsaturated n-3 fatty acids in freshwater have a Mycoplasma-dominated gut microbiota at sea
Jin, Yang; Angell, Inga Leena; Sandve, Simen Rød; Snipen, Lars-Gustav; Olsen, Yngvar; Rudi, Knut (Journal article; Peer reviewed, 2019)Factors affecting the establishment of the gut microbiota in animals living in marine environments remain largely unknown. In terrestrial animals, however, it is well established that the juvenile environment has a major ... -
Breastfeeding associated microbiota in human milk following supplementation with Lactobacillus rhamnosus GG, Lactobacillus acidophilus La-5 and Bifidobacterium animalis subspecies lactis Bb-12
Simpson, Melanie Rae; Avershina, Ekaterina; Storrø, Ola; Johnsen, Roar; Rudi, Knut; Øien, Torbjørn (Journal article; Peer reviewed, 2017)Breastfeeding is one of the major factors affecting the early development of the infant gut microbiota, and weaning is associated with a shift in the gut microbiota toward a more adult composition. Through breastfeeding, ... -
The commensal infant gut meta-mobilome as a potential reservoir for persistent multidrug resistance integrons
Ravi, Anuradha; Avershina, Ekaterina; Foley, Steven L.; Ludvigsen, Jane; Storrø, Ola; Øien, Torbjørn; Johnsen, Roar; McCartney, Anne; L'Abee-Lund, Trine Marie; Rudi, Knut (Peer reviewed; Journal article, 2015)Despite the accumulating knowledge on the development and establishment of the gut microbiota, its role as a reservoir for multidrug resistance is not well understood. This study investigated the prevalence and persistence ... -
Culture dependent and independent analyses suggest a low level of sharing of endospore-forming species between mothers and their children
Avershina, Ekaterina; Larsen, Marte Gro; Aspholm, Marina Elisabeth; Lindbäck, Toril; Storrø, Ola; Øien, Torbjørn; Johnsen, Roar; Rudi, Knut (Peer reviewed; Journal article, 2020)Spore forming bacteria comprise a large part of the human gut microbiota. However, study of the endospores in gut microbiota is limited due to difficulties of culturing and numerous unknown germination factors. In this ... -
Diversity of vaginal microbiota increases by the time of labor onset
Avershina, Ekaterina; Slangsvold, Silje; Simpson, Melanie Rae; Storrø, Ola; Johnsen, Roar; Øien, Torbjørn; Rudi, Knut (Journal article; Peer reviewed, 2017)Vaginal microbiota is an important early source of bacterial colonization for newborns. However, only a few small studies have investigated the composition of vaginal microbiota during labor. In this work, we analyzed ... -
Early gut fungal and bacterial microbiota and childhood growth
Schei, Kasper; Simpson, Melanie Rae; Avershina, Ekaterina; Rudi, Knut; Øien, Torbjørn; Juliusson, Petur Benedikt; Underhill, David; Salamati, Saideh; Ødegård, Rønnaug (Peer reviewed; Journal article, 2020)Introduction: Childhood growth is a sensitive marker of health. Animal studies show increased height and weight velocity in the presence of fungal as well as antibiotic supplement in feed. Human studies on early gut ... -
Early Gut Fungal and Bacterial Microbiota in Growth and Allergy-Related Diseases
Schei, Kasper (Doctoral theses at NTNU;2021:204, Doctoral thesis, 2021)TIDLEG SOPP- OG BAKTERIEMIKROBIOTA I VEKST OG ALLERGIRELATERTE SJUKDOMMAR BARNETARMFLORA I VEKST- OG ALLERGIUTVIKLING Det er ikkje tvil om at tarmflora er i vinden for tida. Endeleg har forskarar kunna djupdukke ned i ... -
Early gut mycobiota and mother-offspring transfer 2017 Aug 24;5(1):107. doi: 10.1186/s40168-017-0319-x.
Schei, Kasper; Avershina, Ekaterina; Øien, Torbjørn; Rudi, Knut; Follestad, Turid; Salamati, Saideh; Ødegård, Rønnaug (Journal article; Peer reviewed, 2017)Background The fungi in the gastrointestinal tract, the gut mycobiota, are now recognised as a significant part of the gut microbiota, and they may be important to human health. In contrast to the adult gut mycobiota, the ... -
Faecal short-chain fatty acids - a diagnostic biomarker for irritable bowel syndrome?
Farup, Per Grønaas; Rudi, Knut; Hestad, Knut (Journal article; Peer reviewed, 2016)Background The diagnosis of irritable bowel syndrome (IBS) relies on symptom-based criteria. A valid and reliable biomarker that could confirm the diagnosis is desirable. This study evaluated the properties of faecal ... -
Functional Bowel Disorders Are Associated with a Central Immune Activation
Farup, Per Grønaas; Ueland, Thor; Rudi, Knut; Lydersen, Stian; Hestad, Knut (Journal article; Peer reviewed, 2017)Background. Subjects with depression and unexplained neurological symptoms have a high prevalence of gastrointestinal comorbidity probably related to the brain-gut communication. This study explored associations between ... -
Liquid array diagnostics: A novel method for rapid detection of microbial communities in single-tube multiplex reactions
Hiseni, Pranvera; Wilson, Robert Charles; Storrø, Ola; Johnsen, Roar; Øien, Torbjørn; Rudi, Knut (Journal article; Peer reviewed, 2019)We present a novel liquid array diagnostics (LAD) method, which enables rapid and inexpensive detection of microbial markers in a single-tube multiplex reaction. We evaluated LAD both on pure cultures, and on infant gut ... -
Low maternal microbiota sharing across gut, breast milk and vagina, as revealed by 16s rRNA gene and reduced metagenomic sequencing
Avershina, Ekaterina; Angell, Inga Leena; Simpson, Melanie Rae; Storrø, Ola; Øien, Torbjørn; Johnsen, Roar; Rudi, Knut (Journal article; Peer reviewed, 2018)The maternal microbiota plays an important role in infant gut colonization. In this work we have investigated which bacterial species are shared across the breast milk, vaginal and stool microbiotas of 109 women shortly ... -
Major faecal microbiota shifts in composition and diversity with age in a geographically restricted cohort of mothers and their children
Avershina, Ekaterina; Storrø, Ola; Øien, Torbjørn; Johnsen, Roar; Pope, Phil; Rudi, Knut (Journal article; Peer reviewed, 2014)Despite the importance, the diversity of the human infant gut microbiota still remains poorly characterized at the regional scale. Here, we investigated the faecal microbiota diversity in a large 16S rRNA gene data set ... -
Plasmid-associated antimicrobial resistance and virulence genes in Escherichia coli in a high arctic reindeer subspecies
Sunde, Marianne; Ramstad, Silje N.; Rudi, Knut; Porcellato, Davide; Ravi, Anuradha; Ludvigsen, Jane; das Neves, Carlos Gonçalo; Tryland, Morten; Ropstad, Erik; Slettemeås, Jannice S.; Telke, Amar A. (Peer reviewed; Journal article, 2021)Objectives In extreme environments, such as the Arctic region, the anthropogenic influence is low and the presence of antimicrobial-resistant bacteria is unexpected. In this study, we screened wild reindeer (Rangifer ... -
Potential association of vacuum cleaning frequency with an altered gut microbiota in pregnant women and their 2-year-old children
Avershina, E.; Ravi, Anuradha; Storrø, Ola; Øien, Torbjørn; Johnsen, Roar; Rudi, Knut (Journal article; Peer reviewed, 2015)Background: Westernized lifestyle and hygienic behavior have contributed to dramatic changes in the human-associated microbiota. This particularly relates to indoor activities such as house cleaning. We therefore investigated ... -
Probiotics, Symptoms, and Gut Microbiota: What Are the Relations? A Randomized Controlled Trial in Subjects with Irritable Bowel Syndrome
Farup, Per Grønaas; Jacobsen, Morten; Ligaarden, Solveig Catharina; Rudi, Knut (Journal article; Peer reviewed, 2012)Introduction. Knowledge of the mechanism of action of probiotics in subjects with irritable bowel syndrome (IBS) is imperfect. Objective. This trial aimed at discriminating between a direct effect on the gut wall and an ...