Dataset Information

In-depth analysis of molecular network based on liquid chromatography coupled with tandem mass spectrometry in natural products: importance of redundant nodes discovery

ABSTRACT: This dataset is used for the research work entitled "In-depth analysis of molecular network based on liquid chromatography coupled with tandem mass spectrometry in natural products: importance of redundant nodes discovery". It mainly consists of two parts: Discovery of redundant nodes and Reasons of redundant nodes. The Discovery of redundant nodes section includes MS/MS data of five different natural products with distinct compound structures, namely Ginseng Radix et Rhizoma (GR): GR-neg, Epimedii Folium (EF): EF-neg, Salviae Miltiorrhizae Radix et Rhizoma (SM): SM-neg, Bufonis Venenum (BV): BV-pos, and Aconiti Lateralis Radix Praeparata (AL): AL-pos. The Reasons of redundant nodes section includes MS/MS data of GR and EF at different sample concentrations, as well as BV at different mass spectrometry parameters, such as 1-fold, 2-fold, and 10-fold dilution of GR samples (GR-1x dilution, GR-2x dilution, GR-10x dilution), 1-fold, 2-fold, and 10-fold dilution of EF samples (EF-1x dilution, EF-2x dilution, and EF-10x dilution), BV at different capillary voltages (BV-capillary-1500V-(1-6), BV-capillary-1750V-(1-6), BV-capillary-2000V-(1-6), BV-capillary-2250V-(1-6), and BV-capillary-2500V-(1-6)), BV at different sample cone voltages (BV-SC-10V-(1-6), BV-SC-20V-(1-6), BV-SC-30V-(1-6), BV-SC-40V-(1-6), and BV-SC-50V-(1-6)), and BV at different desolvation temperatures (BV-DT-300-(1-6), BV-DT-400-(1-6), and BV-DT-500-(1-6)).

INSTRUMENT(S): SYNAPT G2-Si

ORGANISM(S): Aconiti Lateralis Radix Praeparata Ginseng Radix Et Rhizoma Salviae Miltiorrhizae Radix Et Rhizoma Bufonis Venenum Epimedii Folium

SUBMITTER: Yuhao Zhang

PROVIDER: MSV000094404 | MassIVE | Mon Mar 25 23:15:00 GMT 2024

REPOSITORIES: MassIVE

ACCESS DATA

Similar Datasets

Project description:Analysis of the effects of aging on the development of dilated cardiomyopathy by characterizing both changes in ejection fraction (EF) and gene expression profile in 3 groups of male mice: Control (Cont or WT, n=11) and transgenic (Tg or KO) mice with either high EF (KO-H or Tg-H, n=7) or low EF (KO-L or Tg-L, n=6). We previously produced a line of transgenic mice (Tg) on a mixed genetic background where cardiac-specific overexpression of Cre recombinase reduced expression of the EP4 receptor gene. There were no obvious phenotypes in 10-12-week-old male Tg mice. To determine if a cardiac phenotype developed in aged mice, we assessed cardiac structure and function by echocardiography, histology and gene expression in 23-33-week-old male Tg and littermates (Cont). After echocardiography, hearts were removed to assess hypertrophy (MCSA), fibrosis (ICF) and macrophage infiltration by histological methods and for extraction of total RNA and protein. Cont mice had a normal EF of 80Â±0.6% (n=70), whereas Tg mice had a lower EF (60Â±2.7%, n=55, p<0.001) coupled with left ventricular dilatation. The distribution of EFs in the Tg mice was large, ranging from normal to below 30%. MCSA and infiltrating macrophages were not different between groups, but ICF increased by 35% in Tg mice. Cre protein levels in heart lysates did not correlate with either age or EF. In contrast to male Tg mice, female Tg mice had no cardiac dysfunction assessed by echocardiography from 12 to 28 weeks of age. To understand gene expression differences between Cont and Tg mice, whole genome gene expression profiling (Illumina BeadChips) on hearts of 30-32 week old male mice was done. Data indicated that 595 genes were overexpressed in the Tg hearts, 156 of which changed more than 2-fold, including genes involved in remodeling, inflammation, and oxidative stress. 512 genes were downregulated in the Cont hearts, 79 of which changed more than 2-fold, including genes involved with calcium handling, K+ channels, and fatty acid transport and metabolism. In conclusion, Cre overexpression and EP4 knock down in cardiac myocytes in aged male but not female Tg mice are in part associated with increased fibrosis, reduced EF and dilated cardiomyopathy; however, Cre protein itself does not seem to be responsible for the cardiomyopathy. The absence of cardiac dysfunction in female mice suggests a sexual dimorphism in the phenotype. Creation of the cardiac-myocyte specific EP4 KO mouse and littermate controls was described in JY Qian et al, Hypertension 2008: 51(pt 2):560-566. Total RNA extracted from left ventricle of control (Cont or WT, n =11) and cardiac-specific EP4 KO (Tg or KO, n=13) male mice (mean age 31 weeks).

Dataset Information

In-depth analysis of molecular network based on liquid chromatography coupled with tandem mass spectrometry in natural products: importance of redundant nodes discovery

Similar Datasets

OmicsDI is part of the ELIXIR infrastructure