Browse
Submit Data
Databases
API
Help

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

Gender differences of gene expression profiles in brain cardiovascular centers of SHRs [nucleus of solitarii tract]

ABSTRACT: Arterial pressure (AP) is lower in pre-menopausal women than in men of similar age. Pre-menopausal women exhibit a lower sympathetic outflow and a greater baroreceptor reflex, however molecular mechanisms for the gender differences of AP regulation are still not well understood. Since the nucleus tractus solitarius (NTS), a pivotal region of the medulla oblongata for regulating the set-point of AP, is strongly associated with the AP level, we hypothesized that a different neuronal functions at the level of NTS between men and women could contribute to the gender difference in cardiovascular homeostasis. Since females Spontaneous Hypertensive Rats (SHRs) clearly exhibit lower AP levels than their male counterparts at similar age, we investigated whether the NTS of SHRs exhibit gender differences in gene expression by using microarray technique.

ORGANISM(S): Rattus norvegicus

PROVIDER: GSE100189 | GEO | 2018/01/30

SECONDARY ACCESSION(S): PRJNA390974

REPOSITORIES: GEO

ACCESS DATA

Json Xml

Similar Datasets

Gender differences of gene expression profiles in brain cardiovascular centers of SHRs [hypothalamus]

Project description:Arterial pressure (AP) is lower in pre-menopausal women than in men of similar age. Pre-menopausal women exhibit a lower sympathetic outflow and a greater baroreceptor reflex, however molecular mechanisms for the gender differences of AP regulation are still not well understood. Since the hypothalmus is strongly functionnaly connected to the nucleus tractus solitarius (NTS), a pivotal region of the medulla oblongata for regulating the set-point of AP, we hypothesized that a different neuronal functions at the level of hypothalamus between men and women could contribute to the gender difference in cardiovascular homeostasis. Since females Spontaneous Hypertensive Rats (SHRs) clearly exhibit lower AP levels than their male counterparts at similar age, we investigated whether the hypothalamus of SHRs exhibit gender differences in gene expression by using microarray technique.

2018-01-30 | GSE100198 | GEO

Gender differences of gene expression profiles in brain cardiovascular centers of WKY rats [nucleus of solitarii tract]

Project description:Arterial pressure (AP) is lower in pre-menopausal women than in men of similar age. Pre-menopausal women exhibit a lower sympathetic outflow and a greater baroreceptor reflex, however molecular mechanisms for the gender differences of AP regulation are still not well understood. Since the nucleus tractus solitarius (NTS), a pivotal region of the medulla oblongata for regulating the set-point of AP is strongly associated with the AP level, we hypothesized that a different neuronal functions at the level of the NTS between men and women could contribute to the gender difference in cardiovascular homeostasis. Females Spontaneous Hypertensive Rats (SHRs) clearly exhibit lower AP levels than their male counterparts at similar age and their NTS is characterized by a specific gene expression profile. This gender dependence of AP level is less marked in the normotensive strain, Wistar Kyoto rats (WKY). In this study, we investigated the gender-dependent gene expression profile of the NTS of WKY by using microarray technique.

2018-01-30 | GSE107658 | GEO

Gender differences of gene expression profiles in brain cardiovascular centers of WKY rats [hypothalamus]

Project description:Arterial pressure (AP) is lower in pre-menopausal women than in men of similar age. Pre-menopausal women exhibit a lower sympathetic outflow and a greater baroreceptor reflex, however molecular mechanisms for the gender differences of AP regulation are still not well understood. Since the hypothalmus is strongly functionnaly connected to the nucleus tractus solitarius (NTS), a pivotal region of the medulla oblongata for regulating the set-point of AP, we hypothesized that a different neuronal functions at the level of hypothalamus between men and women could contribute to the gender difference in cardiovascular homeostasis. Females Spontaneous Hypertensive Rats (SHRs) clearly exhibit lower AP levels than their male counterparts at similar age and their hypothalamus is characterized by a specific gene expression profile. This gender dependence of AP level is less marked in the normotensive strain, Wistar Kyoto rats (WKY). In this study, we investigated the gender-dependent gene expression profile of the hypothalamus of WKY rats by using microarray technique.

2018-01-30 | GSE107659 | GEO

Estradiol-dependent gene expression profile in the amygdala of ovariectomized SHRs

Project description:Pre-menopausal women exhibit a lower arterial pressure (AP), a lower sympathetic outflow and a greater baroreceptor reflex than age-matched men. However, AP and subsequent cardiovascular diseases dramatically increases in post-menopausal women. Estrogen level is believed to play a role in the regulation of the basal blood pressure, emotion and hormonal response in the different periods of life of a woman but the molecular mechanisms are still not well understood. Amygdala is a major nucleus of the limbic system involved in the control of cardiovascular, behavior and hormonal response to stress or fear. Since variations in estrogen level are associated with cardiovascular, behavior, and hormonal response changes, we hypothesized that it could also be associated with different neuronal functions in amygdala, characterized by a differential gene expression profile. Young Female SHRs were ovariectomized (OV) and half of them received an estradiol treatment (OV+E2) for one month. We investigated whether the amygdala of ovariectomized rats exhibit gene expression differences after estradiol treatment by using microarray technique.

2022-01-21 | GSE163758 | GEO

Gender differences in the cytokines and chemokines gene expression profiles within the medulla oblongata of SHRs

Project description:Medulla oblongata is a region of the brain containing multiple blood pressure regulation centers, including the nucleus of the solitary tract (NTS), a pivotal region for regulating the set-point of arterial pressure. Our previous findings suggest that the NTS of male pre-hypertensive rats and spontaneously hypertensive rats (SHRs) exhibits abnormal inflammatory condition compared with that of normotensive Wistar-Kyoto (WKY) rats. Females of SHRs exhibit a lower blood pressure than their male counterpart but the molecular mechanism is not well described. To unveil the gender differences in the central regulation of blood pressure, we investigated the gene expression profile of cytokines and chemokines in the medulla oblongata of female SHRs compared to that of their male counterparts.

2016-10-12 | GSE87746 | GEO

Altered neurotrophin expression profiles in the nucleus of the solitary tract of spontaneously hypertensive rats

Project description:Our previous findings suggest that the nucleus of the solitary tract (NTS), a pivotal region for regulating the set-point of arterial pressure, exhibits abnormal inflammation in pre-hypertensive and spontaneously hypertensive rats (SHRs) together with elevated anti-apoptotic and low apoptotic factor levels compared with that of normotensive Wistar–Kyoto (WKY) rats. Whether this chronic condition affects neuronal growth and plasticity in the NTS remains unknown. To unveil the characteristics of the neurodevelopmental environment in the NTS of hypertensive rats, we investigated the gene expression profile of neurotrophins and their receptors in SHRs compared to that of normotensive rat WKY. The NTS was dissected from the brain of 6 SHRs and 6 WKY rats and the total RNA was extracted. In both groups of rats (SHRs & WKY rats, n = 6 each), a total of 2 ug mRNA extracts from each NTS were pooled together, treated with RNase-free DNAse I (Invitrogen Life technologies) to remove any genomic contamination, and further purified using the RNeasy mini kit (Qiagen) according to the manufacturer’s instructions. Reverse transcription was subsequently performed on 1 ug total RNA using SuperArray’s RT2 First Strand Kit (SABiosciences); the resulting cDNA was submitted for real-time quantitative PCR reactions on RT2 ProfilerTM PCR array plates using Superarray RT2 SYBR Green qPCR Master Mix (SAbiosciences) and iCycler iQ thermal cycler (Bio-rad), following the manufacturer’s instructions. The experiment was performed in duplicate in each group.

2015-04-15 | E-GEOD-67874 | biostudies-arrayexpress

Gender differences of gene expression profiles in brain cardiovascular centers of SHRs

Project description:Gender differences of gene expression profiles in brain cardiovascular centers of SHRs

| PRJNA421047 | ENA

Altered neurotrophin expression profiles in the nucleus of the solitary tract of spontaneously hypertensive rats

2015-04-15 | GSE67874 | GEO

Transcriptional gender specific changes in the APP/PS1 mouse model of Alzheimer’s disease pathology

Project description:The prevalence of Alzheimer’s disease is significantly higher in women than in men, with recent estimates suggesting that two thirds of AD patients are females. However, the reason for this is unclear and complex, with the fact that women live longer than men being a likely contributor to the observed disparity. Given the complexity of AD and the restrictions in studying any gender-linked biological differences in patients, an established alternative is to study animal models of a disease. To determine if there are gender differences in the response of animals to amyloid deposit, a key pathological feature of AD, we did a genome-wide expression study on tissue obtained from the hippocampus and prefrontal cortex of male and female APP/PS1 mice at 8 months of age, a time at which significant cortical and hippocampal amyloid deposition is present. Amyloid deposit has previously been demonstrated in this model to be independent of gender. Regardless of the tissue sampled, we observed similar pathways affected in male and female mice. Focusing on major neurotransmitter and ionic pathways within the central nervous system reveal more profound gene expression changes in the prefrontal cortex and more restricted changes in the hippocampus. While the changes in the prefrontal cortex involved the same amount of genes in either gender only 60% of these are shown to overlap. In the hippocampus, distinctively fewer changes were observed in female mice than in male mice. By using pre-menopausal mice to investigation the gender differences in response to amyloid deposition, the effect of menopause and changes in progesterone and estrogen levels were eliminated in our study. While previous studies have focused on the genome-wide changes in AD models, the present study contributes to the existing literature on the gene changes in special relation to gender effect in AD.

2020-03-23 | GSE85162 | GEO

Longitudinal DNA methylation profiling of individuals at baseline and 6 and 12 months following Gender Affirming Hormone Therapy (GAHT)

Project description:In individuals where gender identity and sex assigned at birth are markedly and consistently incongruent, as in the case of transgender people, feminisation or masculinisation may be sought through gender affirming hormone therapy (GAHT). In this study we profiled genome-wide DNA methylation in transgender women and transgender men, before and during GAHT (6 months and 12 months into hormone treatment).

2022-02-17 | GSE176394 | GEO

OmicsDI is part of the ELIXIR infrastructure

OmicsDI is an Elixir interoperability service. Learn more ›

OmicsDI Databases

PRIDE
PeptideAtlas
MassIVE
JPOST Repository
Physiome Model Repository

EGA
EVA
ENA
LINCS
PAXDB
Cell Collective

MetaboLights
Metabolomics Workbench
MetabolomeExpress
GNPS
BioModels
FAIRDOMHub

ArrayExpress
dbGaP
ExpressionAtlas
GEO
NODE

Information

Databases
Help
API
Contact us
Code on GitHub
Terms of use
Submit Data