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Variability clinical trials

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NCT ID: NCT06423508 Not yet recruiting - Gut Microbiome Clinical Trials

PRObing The Efficacy of Commercial Stage Storage Buffers and Evaluating Gut Metaproteome Variability Between Individuals

PROTEGI
Start date: June 3, 2024
Phase:
Study type: Observational

The study aims to assess the effectiveness of various commercial and non-hazardous buffers for the storage of human gut fecal samples over time. This evaluation will be conducted by comparing the performance of these buffers against directly frozen samples using metaproteomic analysis. The study is motivated by the need for standardized protocols for sample preservation in metaproteomic research, particularly focusing on protein preservation in fecal samples. By investigating proteomic, taxonomic, and functional identifications, the research seeks to provide insights into the reliability of these buffers as storage solutions. Additionally, the study plans to explore inter- and intra-individual variabilities at the proteome level by periodically collecting fecal samples from volunteers, complementing existing knowledge in metaproteomics. Overall, the study addresses a critical gap in the field and has the potential to enhance reproducibility and comparability across metaproteomic studies

NCT ID: NCT04103151 Completed - Heart Rate Clinical Trials

Heart Rate Variability in Febrile Young Infants

HRV
Start date: December 11, 2017
Phase:
Study type: Observational

Febrile infants younger than 3 months old present a diagnostic dilemma to the emergency physician. Tension remains between the need for early aggressive intervention among patients with suspected sepsis and the global phenomena of increasing antibiotic resistance. The investigators aim to: (1) To study the association between heart rate variability (HRV) and the presence of a serious infection (SI) among infants younger than 3 months old. The investigators hypothesize that a reduced HRV is associated with the presence of SI. (2) To compare HRV between febrile infants < 3 months with non-febrile infants. The investigators hypothesize that the variability will be reduced in febrile infants with SIs when compared to non-febrile well infants, but not among febrile infants without SIs when compared to non-febrile well infants. (3) To study if HRV will provide incremental diagnostic information over current triage tools.