Publications by authors named "Teigen L"

Orf is a parapoxvirus endemically found in sheep and goats. Orf can be transmitted to humans in close contact with infected animals, causing a self-limited viral skin infection known as ecythyma contagiosum. The diagnosis can be made clinically and treatment is usually conservative; however, unfamiliarity with orf may lead to an extended work-up.

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Diet constitutes a major source of nutrient flow to the gut microbes. As such, it can be used to help shape the gut microbiome. Fecal microbiota transplantation (FMT) is an increasingly promising therapy in disease states beyond recurrent infection, but diet is largely overlooked for its potential to help optimize this therapy.

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The cellular causes of the age-related loss in power output and increased fatigability are unresolved. We previously observed that the depressive effects of hydrogen (H) (pH 6.2) and inorganic phosphate (P) (30 mm) did not differ in muscle fibres from young and older men.

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Background: Microbial dysbiosis has been reported to contribute to development of neurodegenerative diseases, however, there is a need to identify causative/prognostic indicators.

Objectives: To comparatively analyze gut microbiome composition in symptomatic LBD (dementia/mild cognitive impairment), iRBD, and cohabiting controls without LBD or iRBD.

Methods: 16S rRNA amplicon sequencing was performed in 38 cases (27 LBD, 11 iRBD) and 39 cohabitant controls.

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Recent advancements in translational gut microbiome research have revealed its crucial role in shaping predictive healthcare applications. Herein, we introduce the Gut Microbiome Wellness Index 2 (GMWI2), an enhanced version of our original GMWI prototype, designed as a standardized disease-agnostic health status indicator based on gut microbiome taxonomic profiles. Our analysis involves pooling existing 8069 stool shotgun metagenomes from 54 published studies across a global demographic landscape (spanning 26 countries and six continents) to identify gut taxonomic signals linked to disease presence or absence.

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Background: Therapeutic drug monitoring for mycophenolic acid (MPA) is challenging due to difficulties in measuring the area under the curve (AUC). Limited sampling strategies (LSSs) have been developed for MPA therapeutic drug monitoring but come with risk of unacceptable performance. The authors hypothesized that the poor predictive performance of LSSs were due to the variability in MPA enterohepatic recirculation (EHR).

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Crohn's disease (CD) is often treated with either exclusive or supplemental enteral nutrition (EN) in pediatrics, but adult practice guidelines primarily focus on medications. Here, we demonstrate the feasibility of a 4-week semi-elemental-formula-based oral nutrition delivery program for managing adult CD ( = 4). Patients consumed ~66% of calories from the formula, a finding that might provide an improved calorie target for future trials.

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Article Synopsis
  • The human microbiome plays a significant role in both health and disease, influencing how drugs are metabolized, which can lead to varying side effects and unexpected responses to medications.
  • Pharmacomicobiomics is an emerging field that studies the interactions between the microbiome and pharmaceuticals, taking advantage of advancements in genome sequencing and bioinformatics.
  • Current research highlights how the microbiome affects drug metabolism in transplant recipients, particularly with drugs like tacrolimus and mycophenolate, though more extensive clinical studies are necessary to fully understand these interactions and their clinical implications.
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(1) Background: There are limited data available to guide clinical decision-making regarding the effects of hormone replacement therapy (HRT) in post-menopausal women with inflammatory bowel disease (IBD). In this study, we sought to characterize a population of post-menopausal women with IBD and to determine the effects of HRT on their disease activity. (2) Methods: A multicenter, retrospective, case-control cohort study of post-menopausal women with IBD was conducted.

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RNA modifications, such as methylation, can be detected with Oxford Nanopore Technologies direct RNA sequencing. One commonly used tool for detecting 5-methylcytosine (mC) modifications is Tombo, which uses an "Alternative Model" to detect putative modifications from a single sample. We examined direct RNA sequencing data from diverse taxa including viruses, bacteria, fungi, and animals.

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Article Synopsis
  • - This study examined how speech and language impairments relate to outcomes in patients with isolated REM sleep behavior disorder (iRBD) across seven different language-speaking centers.
  • - Researchers used advanced speech analysis techniques to identify distinct patterns of language deterioration and followed 180 patients over about 2.7 years, discovering that 26.9% developed neurodegenerative diseases.
  • - Results indicated that greater severity in linguistic and acoustic abnormalities significantly predicted the likelihood of developing conditions like dementia or parkinsonism, suggesting automated language analysis can be a useful predictive tool for identifying patients at risk.
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Background: The Minnesota Pectoralis Risk Score (MPRS) utilizes computed tomography-quantified thoracic muscle and clinical variables to predict survival after left ventricular assist device (LVAD) implantation. The model has not been prospectively tested in HeartMate 3 recipients.

Methods: A single-center HeartMate 3 cohort from July 2016 to July 2021 (n = 108) was utilized for this analysis.

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Recent advancements in human gut microbiome research have revealed its crucial role in shaping innovative predictive healthcare applications. We introduce Gut Microbiome Wellness Index 2 (GMWI2), an advanced iteration of our original GMWI prototype, designed as a robust, disease-agnostic health status indicator based on gut microbiome taxonomic profiles. Our analysis involved pooling existing 8069 stool shotgun metagenome data across a global demographic landscape to effectively capture biological signals linking gut taxonomies to health.

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Skeletal muscle is a major regulatory tissue of whole-body metabolism and is composed of a diverse mixture of cell (fiber) types. Aging and several diseases differentially affect the various fiber types, and therefore, investigating the changes in the proteome in a fiber-type specific manner is essential. Recent breakthroughs in isolated single muscle fiber proteomics have started to reveal heterogeneity among fibers.

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RNA modifications, such as méthylation, can be detected with Oxford Nanopore Technologies direct RNA sequencing. One commonly used tool for detecting 5-methylcytosine (mC) modifications is Tombo, which uses an "Alternative Model" to detect putative modifications from a single sample. We examined direct RNA sequencing data from diverse taxa including virus, bacteria, fungi, and animals.

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Background & Aims: Prolonged length of stay (LOS) and discharge disposition following liver transplantation are associated with postoperative complications and increased healthcare utilization. This study evaluated the relationship between CT-derived psoas muscle measurements and hospital LOS, intensive care unit (ICU) LOS, and discharge disposition after liver transplant. The psoas muscle was chosen given its ease of measurement with any radiological software.

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Introduction: Transcatheter aortic valve replacement (TAVR) has overtaken surgical aortic valve replacement and revolutionized the treatment strategy for aortic valve replacement. Little is known on the disparities among minorities, especially American Indians (AI), undergoing this procedure. We explore TAVR outcomes to identify disparities at our institution.

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Skeletal muscle is a major regulatory tissue of whole-body metabolism and is composed of a diverse mixture of cell (fiber) types. Aging and several diseases differentially affect the various fiber types, and therefore, investigating the changes in the proteome in a fiber-type specific manner is essential. Recent breakthroughs in isolated single muscle fiber proteomics have started to reveal heterogeneity among fibers.

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Purpose Of Review: Excessive hydrogen sulfide (H 2 S) production by the gut microbiota may contribute to the pathogenesis of multiple intestinal diseases, including colon cancer and ulcerative colitis. Therefore, understanding of dietary drivers of H 2 S production has potential implications for nutritional strategies to optimize gut health and treat intestinal diseases.

Recent Findings: Recent studies support a positive relationship between dietary protein intake and H 2 S production.

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Article Synopsis
  • Inflammation is linked to pulmonary arterial hypertension (PAH), and gut dysbiosis contributes to inflammation and immune issues by affecting microbial metabolites, though its role in PAH is still unclear.
  • Researchers analyzed the gut microbiome and microbial metabolites in patients with PAH compared to family and healthy control subjects using advanced genetic sequencing methods.
  • Results showed that PAH patients had a less diverse gut microbiome with unique microbial signatures, lower levels of anti-inflammatory metabolites like short-chain fatty acids, and a higher presence of pro-inflammatory metabolites, suggesting that adjusting the gut microbiome could be a potential treatment for PAH.
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Background & Aims: Pharmacological management of obesity improves outcomes and decreases the risk of obesity-related complications. This American Gastroenterological Association guideline is intended to support practitioners in decisions about pharmacological interventions for overweight and obesity.

Methods: A multidisciplinary panel of content experts and guideline methodologists used the Grading of Recommendations Assessment, Development and Evaluation framework to prioritize clinical questions, identify patient-centered outcomes, and conduct an evidence synthesis of the following agents: semaglutide 2.

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Study Objectives: Isolated REM sleep behavior disorder (iRBD) carries a high lifetime risk for phenoconversion to a defined neurodegenerative disease (NDD) including Parkinson disease, dementia with Lewy bodies, and multiple system atrophy. We aimed to examine iRBD patient values and preferences regarding prognostic counseling.

Methods: One hundred thirteen iRBD patient participants enrolled in the Mayo Clinic iRBD Patient Registry were sent an email survey concerning their values and preferences concerning NDD prognostic counseling and their experiences following diagnosis with iRBD.

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