Valsartan-mediated chronotherapy in spontaneously hypertensive rats via targeting clock gene expression in vascular smooth muscle cells.

07:00 EST 3rd December 2019 | BioPortfolio

Summary of "Valsartan-mediated chronotherapy in spontaneously hypertensive rats via targeting clock gene expression in vascular smooth muscle cells."

This study was to investigate the underlying mechanisms of valsartan chronotherapy in regulating blood pressure variability. RT-PCR was used to assay clock genes expression rhythm in the hypothalamus, aortic vessels, and target organs after valsartan chronotherapy. WB was used to measure Period 1 (Per1), Period 2 (Per2) protein expression in aortic vessels, as well as to measure phosphorylation of 20-kDa regulatory myosin light chain (MLC) in VSMCs. Specific clock genes in the hypothalamus, and Per1 and Per2 in aorta abdominalis, exhibited disordered circadian expression . Valsartan asleep time administration (VSA) restored circadian clock gene expression in a tissue- and gene-specific manner. , VSA was more efficient in blocking angiotensin II relative to VWA, which led to differential circadian rhythms of Per1 and Per2, ultimately corrected MLC phosphorylation. VSA may be efficacious in regulating circadian clock genes rhythm, then concomitantly correct circadian blood pressure rhythms.


Journal Details

This article was published in the following journal.

Name: Archives of physiology and biochemistry
ISSN: 1744-4160
Pages: 1-11


DeepDyve research library

PubMed Articles [12226 Associated PubMed Articles listed on BioPortfolio]

Serotonergic system may be involved in alterations of sleep homeostasis in spontaneously hypertensive rats.

Hypertension is associated with sleep disorders. Spontaneously hypertensive rats are derived from Wistar-Kyoto rats and widely used in research on hypertension. The present study investigated the prop...

S1P1 gene transfection improves erectile function in spontaneously hypertensive rats.

To investigate the relationship between the upregulated expression of sphingosine-1-phosphate receptor 1 (S1P1) in the corpus cavernosum and erectile function in spontaneously hypertensive rats (SHRs)...

Cardioprotective role of IGF-1 in the hypertrophied myocardium of the spontaneously hypertensive rats: A key effect on NHE-1 activity.

Myocardial Na/H exchanger-1 (NHE-1) hyperactivity and oxidative stress are interrelated phenomena playing pivotal roles in the development of pathological cardiac hypertrophy and heart failure. Exerci...

Antihypertensive effects of Korean wild simulated ginseng (Sanyangsam) extracts in spontaneously hypertensive rats.

Ginseng possesses a wide spectrum of medicinal effects and has widely been used in traditional medicine for thousands of years. In this study, the antihypertensive effect of Korean wild simulated gins...

Ectopic TWEAKR expression in type I fiber of stroke-prone spontaneously hypertensive rats is related to slow muscle-specific hypotrophy.

Stroke-prone spontaneously hypertensive rats (SHRSP) show significantly lower body weight than normotensive Wistar-Kyoto rats (WKY). Our hypotheses are as follows: weight loss of the skeletal muscle i...

Clinical Trials [3158 Associated Clinical Trials listed on BioPortfolio]

Efficacy and Safety of Valsartan and Nebivolol/Valsartan in Hypertensive Patients With LVH

To assess the efficacy of Left Ventricular Hypertrophy (LVH) reduction and 24-hour blood pressure control of Valsartan 80mg or Nebivolol/Valsartan 5/80mg once daily as replacement therapy ...

Effect of Fully Blocking Type 1 Angiotensin Receptor on Target Organ Damage of Postmenopausal Hypertensive Women

This study compared the improvements of blood pressure levels, left ventricular hypertrophy, left ventricular diastolic function, vascular function and cognitive function between postmenop...

A Study to Evaluate the Combination of Valsartan and Amlodipine in Hypertensive Patients Not Controlled on Monotherapy

This study is designed to provide additional efficacy and safety data for a treatment strategy based on the combination valsartan with amlodipine in hypertensive patients previously treat...

VALERIA: Valsartan in Combination With Lisinopril in Hypertensive Patients With Microalbuminuria

The purpose of this study is to compare if the combination of valsartan 320 mg/lisinopril 20 mg versus the monotherapies of lisinopril 40 mg or valsartan 320 mg will result in a greater de...

A Study to Evaluate the Combination of Valsartan + Amlodipine in Hypertensive Patients

The purpose of this study is to evaluate the efficacy of valsartan plus amlodipine in hypertensive patients not responding to treatment with amlodipine or felodipine alone.

Medical and Biotech [MESH] Definitions

A strain of Rattus norvegicus used as a normotensive control for the spontaneous hypertensive rats (SHR).

A pharmaceutical preparation of amlodipine and valsartan that is used for the treatment of HYPERTENSION.

The adaptation of therapeutic approaches such as pharmacological (DRUG CHRONOTHERAPY), surgical, radiological, or physical to the known variations in biological RHYTHMICITY, such as CIRCADIAN RHYTHMS. The treatment is aimed at supporting normal rhythms, or modifying the timing of therapy to achieve maximal efficacy and minimal adverse effect.

Basic helix-loop-helix (bHLH) domain-containing proteins that contain intrinsic HISTONE ACETYLTRANSFERASE activity and play important roles in CIRCADIAN RHYTHM regulation. Clock proteins combine with Arntl proteins to form heterodimeric transcription factors that are specific for E-BOX ELEMENTS and stimulate the transcription of several E-box genes that are involved in cyclical regulation. This transcriptional activation also sets into motion a time-dependent feedback loop which in turn down-regulates the expression of clock proteins.

An outbred strain of rats developed in 1915 by crossing several Wistar Institute white females with a wild gray male. Inbred strains have been derived from this original outbred strain, including Long-Evans cinnamon rats (RATS, INBRED LEC) and Otsuka-Long-Evans-Tokushima Fatty rats (RATS, INBRED OLETF), which are models for Wilson's disease and non-insulin dependent diabetes mellitus, respectively.

Quick Search

DeepDyve research library

Relevant Topics

Gene Expression
The process of gene expression is used by eukaryotes, prokaryotes, and viruses to generate the macromolecular machinery for life. Steps in the gene expression process may be modulated, including the transcription, RNA splicing, translation, and post-tran...

Vascular relates to blood vessels (Oxford Medical Dictionary) and can be used to describe the supply of blood, a disease affecting the blood vessels or molecules associated with these structures. For example, <!--LGfEGNT2Lhm-->atherosclerosis ...

Arthritis Fibromyalgia Gout Lupus Rheumatic Rheumatology is the medical specialty concerned with the diagnosis and management of disease involving joints, tendons, muscles, ligaments and associated structures (Oxford Medical Diction...

Searches Linking to this Article