Egg white protein hydrolysate decreased blood pressure via the competing endogenous RNA regulatory networks in female spontaneously hypertensive rats

Literature Information

Publication Date 2023-09-25
DOI 10.1039/D3FO02797J
Impact Factor 5.396
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Abstract

Despite numerous studies having reported the effects and mechanisms of antihypertensive peptides including peptides derived from egg white proteins, the role of peptides in a female hypertensive animal model is unknown. On the other hand, the role of epigenetic modulation by peptide treatment has rarely been investigated. This study sought to investigate the effect of egg white protein hydrolysate (EWH) in female spontaneously hypertensive rats (SHRs) as well as to explore the underlying mechanisms from the perspectives of the transcriptome and the profiles of non-coding RNAs. Young (12–14-week-old) female SHRs were orally administered 250 mg per kg body weight (low-dose) or 1000 mg per kg body weight (high-dose) EWH daily for 10 weeks. The blood pressure of the rats was monitored weekly. The mRNA and non-coding RNAs (miRNA, lncRNA, and circRNA) in the aorta were profiled by the high-throughput RNA-seq technique. Differentially expressed (DE) RNAs in the aorta were identified for the construction of the competing endogenous RNA (ceRNA) networks and key molecules were validated by qRT-PCR. The treatment of the high-dose EWH showed a significant effect on reducing blood pressure in female SHRs. Bioinformatic analyses revealed 813, 90, 347 and 869 DE-mRNAs, DE-miRNAs, DE-lncRNAs and DE-circRNAs, respectively. The CNTN5-LncRNA-XR_001835895.1-miR-384-5p was identified as the central network which was validated in the aorta and circulation of female SHRs. The results from this study demonstrated that the treatment with EWH reduced blood pressure via regulating the ceRNA networks in female SHRs, which provided novel insights into the mechanisms of food protein-derived antihypertensive peptides.

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Source Journal

Food & Function

Food & Function
CiteScore: 10.1
Self-citation Rate: 3.9%
Articles per Year: 758

Food & Function provides a unique venue for physicists, chemists, biochemists, nutritionists and other food scientists to publish novel, cutting-edge, original research focussing on food, its nutrients and their relation to human health and nutrition. We welcome research describing the: Physical properties and structure of food and how this relates to sensory perception and human health Biochemical and physiological actions of food components Interactions between foods, gut microbiota and human physiology Nutritional and biological evaluation of food Clinical and population studies using food or food components Development of biomarkers of food intake and effects on human health We also welcome systematic reviews and meta-analyses of existing studies in the literature, provided these are objective and scientifically valid Food in this context is defined as materials of plant, animal or mineral origin, which are consumed orally (by humans) for pleasure and to sustain growth and vital processes. Examples of research topics that are of interest to be published in Food & Function are: Chemistry and physics of food components and digestion processes Relationship between the physical properties/structure of food and nutrition and human health - for example, impact of food matrix or processing on nutrient release and uptake Molecular properties and physiological effects of food components (nutrients, fibres, essential micronutrients, phytochemicals, bioactives, food substitutes, novel ingredients, allergens, flavours and fragrances) Nutritional and health effects of food including bioavailability and metabolism assessment of food components (nutrients, micronutrients and other microconstituents) Efficacy and mechanisms of food constituents in the body - including biomarkers of intakes, exposure and effects Impacts of foods/food components on gut microorganisms and human physiology - For example impact of fermented foods Role of nutrition and diet in human disease prevention and development Cellular and molecular effects/mechanisms of food/food components image block The following types of research are not within the scope of Food & Function: Research relating to traditional herbal medicines, medicinal plants or active compounds extracted from such plants (materials that are primarily consumed as medicine, i.e. the intended purpose is primarily to treat, cure or prevent a non-deficiency disease) or relating to foods not recognised as human diet contributors Animal nutrition research that is not primarily designed as a model to benefit human nutrition (for example, studies of growth/accretion, heat stress, weaning, ruminant digestion, meat quality, etc.) Treatments administered by non-oral routes such as injection (subcutaneous, intramuscular, intraperitoneal, etc.), dermal/transdermal, rectal, inhalation, nasal, etc. Exceptions are when such routes of administration are used for mechanistic/control purposes in the experimental design Pharmacological/pharmaceutical approaches: Encapsulation, emulsification and/or pure controlled release of compounds or bioactives that do not come directly from edible foods, such as dietary supplements - these are better suited to a pharmaceutical journal In vitro or in vivo studies with poorly defined (insufficiently characterised) extracts and studies without appropriate controls will not be considered Cells studies not considering the metabolism of food components ingested – for example, irrelevant exposure of cells to compounds not present in the body after absorption Manuscripts with only a fully theoretical/bioinformatic approach and without appropriate support from analytical evidence will not be considered for publication Studies focussing solely on food engineering, preservation and sustainable technologies – these can be published in our companion journal Sustainable Food Technology Pure food analysis - these can be published in Analytical Methods

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