Ontology highlight
ABSTRACT:
PROVIDER: PRJNA1229480 | ENA |
REPOSITORIES: ENA
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Project description:Objective: To investigate the salivary proteomic profile associated with excessive gingival bleeding in pregnant women with obesity. Methods: Participants were divided into two groups based on Bleeding on Probing (BOP): excessive gingival bleeding (BOP > 50%, G1 = 9) and no excessive gingival bleeding (BOP 0–30%, G2 = 9). Unstimulated saliva samples were collected and individually analyzed using Nano Liquid Chromatography Electron Spray Ionization Tandem Mass Spectrometry (nLC-ESI-MS/MS). Proteins were classified by Gene Ontology (GO) analysis for biological process, molecular function, immune system involvement, and cellular component. Differences in protein expression were identified using thresholds of p > 0.05 for downregulation and 1-p < 0.95 for upregulation. Results: Among 183 identified proteins, 100 were shared between groups, with 57 up-regulated and 27 down-regulated in G1. Key biological processes included the antimicrobial humoral response and hydrogen peroxide catabolism, with proteins linked to immune function and endopeptidase regulation. Interaction network analysis revealed Lactotransferrin (increased 5-fold in G1), Haptoglobin (4-fold), and Immunoglobulin J chain (3-fold) as up-regulated, while Statherin (5-fold) and Protein S100-A8 (4-fold) were down-regulated. These proteins were associated with defense response and antimicrobial activity. Conclusions: Pregnant women with obesity and excessive gingival bleeding exhibited distinct salivary proteomic profiles, characterized by upregulation of immune-related proteins and downregulation of tissue-protective proteins. These findings highlight potential biomarkers for early detection and targeted management of periodontal inflammation in this high-risk group.
2025-06-23 | PXD058171 | Pride
Project description:Pregnancy results in significant physiological changes which can impact the health and development of the fetus and mother. Pregnancy-induced changes in plasma lipoproteins are well-documented with modest to no impact observed on the generic measure of high-density lipoprotein (HDL) cholesterol. However, no studies have taken a deeper look at the impact of pregnancy on the concentration and composition of HDL subspecies. In this prospective study, we collected plasma from 24 non-pregnant and 19 pregnant women in their second trimester. Using nuclear magnetic resonance (NMR) we quantified 11 different lipoprotein size subspecies from plasma including 3 in the HDL class. We observed a profound increase in the number of larger HDL particles in pregnant women. These findings were confirmed by tracking phospholipid across lipoproteins using high-resolution gel-filtration chromatography. Using liquid chromatography-mass spectrometry (LC-MS) we identified 87 lipid-associated proteins across size speciated fractions. We report drastic shifts in multiple protein clusters across different HDL sized fractions in pregnant females compared to their non-pregnant controls. In summary, we have shown that pregnancy results in major alterations in HDL subspecies concentrations and compositions that would have otherwise been missed using traditional lipid measurements. These findings significantly elevate our understanding of how changes in lipoprotein metabolism due to pregnancy could impact the health of both the fetus and the mother.
2022-02-17 | PXD026543 | Pride
Project description:Pregnancy results in significant physiological changes which can impact the health and development of the fetus and mother. Pregnancy-induced changes in plasma lipoproteins are well-documented with modest to no impact observed on the generic measure of high-density lipoprotein (HDL) cholesterol. However, no studies have taken a deeper look at the impact of pregnancy on the concentration and composition of HDL subspecies. In this prospective study, we collected plasma from 24 non-pregnant and 19 pregnant women in their second trimester. Using nuclear magnetic resonance (NMR) we quantified 11 different lipoprotein size subspecies from plasma including 3 in the HDL class. We observed a profound increase in the number of larger HDL particles in pregnant women. These findings were confirmed by tracking phospholipid across lipoproteins using high-resolution gel-filtration chromatography. Using liquid chromatography-mass spectrometry (LC-MS) we identified 87 lipid-associated proteins across size speciated fractions. We report drastic shifts in multiple protein clusters across different HDL sized fractions in pregnant females compared to their non-pregnant controls. In summary, we have shown that pregnancy results in major alterations in HDL subspecies concentrations and compositions that would have otherwise been missed using traditional lipid measurements. These findings significantly elevate our understanding of how changes in lipoprotein metabolism due to pregnancy could impact the health of both the fetus and the mother.
2022-02-17 | PXD026683 | Pride
Project description:To explore the influence of choline intake and pregnancy status on gene expression, we employed whole genome microarray expression profiling to identify genes that were differentially expressed between two choline intake groups and between pregnant and non-pregnant women. Healthy third trimester (gestational week 26-29) pregnant women and non-pregnant women were randomized to a 12-week choline controlled feeding study. The participants consumed either 480 (n=6 pregnant and n=5 non-pregnant) or 930 (n=6 pregnant and n=5 non-pregnant) mg choline/d. Fasting peripheral blood leukocyte samples were collected at week 0 and week 12 to extract RNA and perform the arrays.
2012-03-16 | GSE36532 | GEO
Project description:Background: Knowledge about extracellular vesicles (EV) and their molecular cargo in gestational parasitic infections, particularly by Plasmodium and soil-transmitted helminths (STH), is almost non-existent. Objective: To perform isolation and molecular characterization of plasma-derived EVs from Colombian pregnant women and compare quantity, size, concentration and protein cargo of those EVs according to the infectious status. Methodology: Five study groups were formed: 1), Pregnant women with Plasmodium infection. 2), Pregnant women with STH infection. 3), Pregnant women with coinfection Plasmodium and STH. 4), Pregnant women without infection with Plasmodium nor STH. 5), Non-pregnant women without infection with Plasmodium nor STH. Plasma-derived EVs were isolated by size exclusion chromatography (SEC) and fractions containing EVs identified by a bead-based flow cytometric assay for tetraspanin CD9; the size and concentration of EVs were quantified by nanoparticle tracking analysis, and proteins associated with EVs were identified by liquid chromatography-mass spectrometry (LC-MS) in a pool of samples per study group.
2024-11-26 | PXD051270 | Pride
Project description:To explore the influence of choline intake and pregnancy status on gene expression, we employed whole genome microarray expression profiling to identify genes that were differentially expressed between two choline intake groups and between pregnant and non-pregnant women. Healthy third trimester (gestational week 26-29) pregnant women and non-pregnant women were randomized to a 12-week choline controlled feeding study. The participants consumed either 480 (n=6 pregnant and n=5 non-pregnant) or 930 (n=6 pregnant and n=5 non-pregnant) mg choline/d. Fasting peripheral blood leukocyte samples were collected at week 0 and week 12 to extract RNA and perform the arrays. Healthy third trimester (gestational week 26-29) pregnant women and non-pregnant women were randomized to a 12-week choline controlled feeding study. The participants consumed either 480 (n=6 pregnant and n=5 non-pregnant) or 930 (n=6 pregnant and n=5 non-pregnant) mg choline/d for 12 weeks. Fasting (10-h) peripheral blood leukocyte gene expression were measured at week 0 and week 12.
2012-03-16 | E-GEOD-36532 | biostudies-arrayexpress