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Stepanichev MY, Mamedova DI, Gulyaeva NV. Hippocampus under Pressure: Molecular Mechanisms of Development of Cognitive Impairments in SHR Rats. BIOCHEMISTRY. BIOKHIMIIA 2024; 89:711-725. [PMID: 38831507 DOI: 10.1134/s0006297924040102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 11/20/2023] [Accepted: 03/14/2024] [Indexed: 06/05/2024]
Abstract
Data from clinical trials and animal experiments demonstrate relationship between chronic hypertension and development of cognitive impairments. Here, we review structural and biochemical alterations in the hippocampus of SHR rats with genetic hypertension, which are used as a model of essential hypertension and vascular dementia. In addition to hypertension, dysfunction of the hypothalamic-pituitary-adrenal system observed in SHR rats already at an early age may be a key factor of changes in the hippocampus at the structural and molecular levels. Global changes at the body level, such as hypertension and neurohumoral dysfunction, are associated with the development of vascular pathology and impairment of the blood-brain barrier. Changes in multiple biochemical glucocorticoid-dependent processes in the hippocampus, including dysfunction of steroid hormones receptors, impairments of neurotransmitter systems, BDNF deficiency, oxidative stress, and neuroinflammation are accompanied by the structural alterations, such as cellular signs of neuroinflammation micro- and astrogliosis, impairments of neurogenesis in the subgranular neurogenic zone, and neurodegenerative processes at the level of synapses, axons, and dendrites up to the death of neurons. The consequence of this is dysfunction of hippocampus, a key structure of the limbic system necessary for cognitive functions. Taking into account the available results at various levels starting from the body and brain structure (hippocampus) levels to molecular one, we can confirm translational validity of SHR rats for modeling mechanisms of vascular dementia.
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Affiliation(s)
- Mikhail Yu Stepanichev
- Institute of Higher Nervous Activity and Neurophysiology, Russian Academy of Sciences, Moscow, 117485, Russia.
| | - Diana I Mamedova
- Institute of Higher Nervous Activity and Neurophysiology, Russian Academy of Sciences, Moscow, 117485, Russia
| | - Natalia V Gulyaeva
- Institute of Higher Nervous Activity and Neurophysiology, Russian Academy of Sciences, Moscow, 117485, Russia
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Zhou Z, Chen J, Cui Y, Zhao R, Wang H, Yu R, Jin T, Guo J, Cong Y. Antihypertensive activity of different components of Veratrum alkaloids through metabonomic data analysis. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2023; 120:155033. [PMID: 37647672 DOI: 10.1016/j.phymed.2023.155033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2023] [Revised: 07/11/2023] [Accepted: 08/15/2023] [Indexed: 09/01/2023]
Abstract
BACKGROUND Hypertension is a serious global public health issue. Blood pressure (BP) is still not effectively controlled in about 20 - 30% of hypertensive patients. Therefore, it is imperative to develop new treatments for hypertension. Veratrum alkaloids were once used for the clinical treatment of hypertension, the mechanism of which is still unclear. It was gradually phased out due to adverse reactions. PURPOSE This study aimed to investigate the short-term and long-term hypotensive profiles of different components of Veratrum alkaloids in spontaneously hypertensive rats (SHRs) to unveil their mechanisms of action. RESULTS Total Veratrum alkaloid (V), component A (A), and veratramine (M) quickly decreased BP within 30 min of treatment, reduced renal and cardiovascular damage, and improved relevant biochemical indicators (nitric oxide [NO], endothelin-1 [ET-1], angiotensin II [Ang II)], noradrenaline [NE], etc) in SHRs to delay stroke occurrence. Thereinto, A exhibited excellent protective effects in cardiovascular disease. The metabolomic profiles of SHRs treated with V, A, and M were significantly different from those of SHRs treated with vehicle. Thirteen metabolites were identified as potential pharmacodynamic biomarkers. Through Kyoto Encyclopedia of Genes and Genomes analysis, V, A, and M-induced hypotension was mainly related to alterations in nicotinate and nicotinamide metabolism, GABAergic synapses, linoleic acid metabolism, ketone body synthesis and degradation, arginine and proline metabolism, and urea cycle, of which nicotinate and nicotinamide metabolism was the key metabolic pathway to relieve hypertension. CONCLUSION This work shows that A is an effective and promising antihypertensive agent for hypertension treatment to reduce BP and hypertensive target organ damage, which is mainly mediated through modulating nicotinate and nicotinamide metabolism, RAS, and NO-ET homeostasis.
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Affiliation(s)
- Zhaoli Zhou
- State key Laboratory of Antiviral Drugs, Engineering Center of Henan Province of Eucommia ulmoides Cultivation and Utilization, School of Pharmacy, Henan University, Kaifeng 475004, China
| | - Juan Chen
- State key Laboratory of Antiviral Drugs, Engineering Center of Henan Province of Eucommia ulmoides Cultivation and Utilization, School of Pharmacy, Henan University, Kaifeng 475004, China; The First Medical Center of the Chinese People's Liberation Army General Hospital, Beijing 100141, China
| | - Yuzi Cui
- State key Laboratory of Antiviral Drugs, Engineering Center of Henan Province of Eucommia ulmoides Cultivation and Utilization, School of Pharmacy, Henan University, Kaifeng 475004, China
| | - Rihong Zhao
- State key Laboratory of Antiviral Drugs, Engineering Center of Henan Province of Eucommia ulmoides Cultivation and Utilization, School of Pharmacy, Henan University, Kaifeng 475004, China
| | - Hao Wang
- State key Laboratory of Antiviral Drugs, Engineering Center of Henan Province of Eucommia ulmoides Cultivation and Utilization, School of Pharmacy, Henan University, Kaifeng 475004, China
| | - Rui Yu
- State key Laboratory of Antiviral Drugs, Engineering Center of Henan Province of Eucommia ulmoides Cultivation and Utilization, School of Pharmacy, Henan University, Kaifeng 475004, China
| | - Tiantian Jin
- State key Laboratory of Antiviral Drugs, Engineering Center of Henan Province of Eucommia ulmoides Cultivation and Utilization, School of Pharmacy, Henan University, Kaifeng 475004, China
| | - Jinggong Guo
- Center for Multi-Omics Research, National Key Laboratory of Cotton Bio-breeding and Integrated Utilization, School of Life Sciences, Henan University, Kaifeng 475004, China.
| | - Yue Cong
- State key Laboratory of Antiviral Drugs, Engineering Center of Henan Province of Eucommia ulmoides Cultivation and Utilization, School of Pharmacy, Henan University, Kaifeng 475004, China.
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Wu S, Zhao W, Yu Z, Liu J. Antihypertensive effect and underlying mechanism of tripeptide NCW on spontaneously hypertensive rats using metabolomics analysis. Food Funct 2022; 13:1808-1821. [PMID: 35084009 DOI: 10.1039/d1fo03924e] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Tripeptide NCW identified in our previous study displayed a strong ACE inhibitory activity, but whether it has any antihypertensive effect in vivo remains unknown. Thus, in this study, we aimed to investigate the protective effects of tripeptide NCW in spontaneously hypertensive rats (SHRs) and to further figure out the serum metabolic profiling variations due to its oral administration via UPLC-Q-TOF-MS/MS-based metabolomics analysis to clarify the underlying hypotensive mechanism. After three weeks of oral administration, the tripeptide NCW-treated group (NCW/SHR group, 80 mg per kg BW per d) showed significantly reduced systolic and diastolic blood pressure by 48.08 ± 3.84 mmHg and 48.92 ± 5.77 mmHg, respectively. Additionally, a total of 25 blood pressure-related metabolites were identified as being significantly changed in SHRs given tripeptide NCW after three weeks. These 25 metabolites might be biomarkers that indicated that the tripeptide NCW exhibits antihypertensive activity via regulating bile acid metabolism, lipid metabolism, amino acid metabolism, purinergic signaling, pantothenate and CoA biosynthesis, and the citrate cycle. Collectively, tripeptide NCW has a protective effect on SHRs associated with serum metabolite abnormalities.
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Affiliation(s)
- Sijia Wu
- College of Food Science and Engineering, Bohai University, Jinzhou 121013, P.R. China. .,Lab of Nutrition and Functional Food, Jilin University, Changchun 130062, P.R. China
| | - Wenzhu Zhao
- College of Food Science and Engineering, Bohai University, Jinzhou 121013, P.R. China.
| | - Zhipeng Yu
- College of Food Science and Engineering, Bohai University, Jinzhou 121013, P.R. China.
| | - Jingbo Liu
- Lab of Nutrition and Functional Food, Jilin University, Changchun 130062, P.R. China
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Yu Z, Xue W, Zhou M, Wang L, Wu S, Zhao W, Ding L. Potential Antihypertensive Mechanisms of the Egg White-Derived Peptide QIGLF in Spontaneously Hypertensive Rats Revealed Using Untargeted Serum Metabolomics. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:12063-12071. [PMID: 34581184 DOI: 10.1021/acs.jafc.1c05599] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The angiotensin-converting enzyme (ACE) inhibitory peptide QIGLF derived from egg white was shown to have significant in vivo antihypertensive effects in our previous study, but the intervention mechanisms at the metabolic level are still unclear. The UPLC-QTOF/MS-based untargeted metabolomics approach was used to clarify the potential antihypertensive mechanisms of QIGLF in the serum of spontaneously hypertensive rats (SHRs). Multivariate statistical analysis showed a clear difference in the metabolite profiles between the QIGLF and model groups. The results suggested that eight potential biomarkers were identified, that is, adrenic acid, ursodeoxycholic acid, glycocholic acid, taurocholic acid, tryptophan, acetylindoxyl, tyrosine, and 2-phenylethanol, which were mainly involved in aromatic amino acid biosynthesis and metabolism, biosynthesis of bile acid, and biosynthesis of unsaturated fatty acids. QIGLF might exert antihypertensive effects by improving endothelial dysfunction. This study provides a theoretical basis for future research and application of ACE inhibitory peptides in the prevention and improvement of hypertension.
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Affiliation(s)
- Zhipeng Yu
- College of Food Science and Engineering, Bohai University, Jinzhou 121013, P. R. China
| | - Wenjun Xue
- College of Food Science and Engineering, Bohai University, Jinzhou 121013, P. R. China
| | - Mingjie Zhou
- College of Food Science and Engineering, Bohai University, Jinzhou 121013, P. R. China
| | - Li Wang
- College of Food Science and Engineering, Bohai University, Jinzhou 121013, P. R. China
| | - Sijia Wu
- Lab of Nutrition and Functional Food, Jilin University, Changchun 130062, P. R. China
| | - Wenzhu Zhao
- College of Food Science and Engineering, Bohai University, Jinzhou 121013, P. R. China
| | - Long Ding
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, P. R. China
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Deng Y, Huang C, Su J, Pan CW, Ke C. Identification of biomarkers for essential hypertension based on metabolomics. Nutr Metab Cardiovasc Dis 2021; 31:382-395. [PMID: 33495028 DOI: 10.1016/j.numecd.2020.11.023] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 11/10/2020] [Accepted: 11/20/2020] [Indexed: 01/09/2023]
Abstract
AIM Essential hypertension (EH) is one of the most important public health problems worldwide. However, the pathogenesis of EH is unclear and early diagnostic methods are lacking. Metabolomics demonstrates great potential for biomarker discovery and the mechanistic exploration of metabolic diseases. DATA SYNTHESIS This review included human and animal metabolomics studies related to EH in the PubMed and Web of Science databases between February 1996 and May 2020. The study designs, EH standards, and reported metabolic biomarkers were systematically examined and compared. The pathway analysis was conducted through the online software MetaboAnalyst 4.0. Twenty-two human studies and fifteen animal studies were included in this systematic review. There were many frequently reported biomarkers with consistent trends (e.g., pyruvate, lactic acid, valine, and tryptophan) in human and animal studies, and thus had potential as biomarkers of EH. In addition, several shared metabolic pathways, including alanine, aspartate, and glutamate metabolism, aminoacyl-tRNA biosynthesis, and arginine biosynthesis, were identified in human and animal metabolomics studies. These biomarkers and pathways, closely related to insulin resistance, the inflammatory state, and impaired nitric oxide production, were demonstrated to contribute to EH development. CONCLUSIONS This study summarized valuable metabolic biomarkers and pathways that could offer opportunities for the early diagnosis or prediction of EH and the discovery of the metabolic mechanisms of EH.
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Affiliation(s)
- Yueting Deng
- Medical College of Soochow University, Suzhou, 215123, PR China
| | - Chen Huang
- Medical College of Soochow University, Suzhou, 215123, PR China
| | - Jingyue Su
- Medical College of Soochow University, Suzhou, 215123, PR China
| | - Chen-Wei Pan
- School of Public Health, Medical College of Soochow University, 199 Renai Road, Suzhou, 215123, PR China.
| | - Chaofu Ke
- Department of Epidemiology and Biostatistics, School of Public Health, Medical College of Soochow University, 199 Renai Road, Suzhou, 215123, PR China.
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Alharbi H, Ahmad M, Tian Z, Yu R, Li YL. Therapeutic value of the metabolomic active neurotransmitter isorhynchophylline in the treatment of spontaneously hypertensive rats by regulating neurotransmitters. Transl Neurosci 2021; 12:425-431. [PMID: 34760298 PMCID: PMC8562224 DOI: 10.1515/tnsci-2020-0185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Revised: 08/31/2021] [Accepted: 09/03/2021] [Indexed: 11/29/2022] Open
Abstract
Hypertension is one of the most reported cardiovascular and cerebrovascular diseases with significantly high morbidity and mortality rates. This condition threatens the very existence of human beings. Numerous studies conducted earlier revealed the good therapeutic effect of isorhynchophylline on hypertension since the former regulates the metabolic disorders in neurotransmitters. However, the mechanism behind this action is yet to be deciphered. The current study followed the targeted metabolomics method to investigate the changes in the neurotransmitter level in the hippocampus of spontaneously hypertensive rats (SHRs) after the rats were treated with isorhynchophylline. The authors predicted the metabolic pathways involved in extensively modified neurotransmitters. Further, the expressions of metabolism-key enzymes in mRNA and protein levels were also determined. When treated with isorhynchophylline, it induced notably varying metabolomic profiles of the hippocampus in SHRs. Isorhynchophylline perturbed a total of seven extensively modified neurotransmitters as well as the primarily related pathways such as tyrosine and glutamate metabolism. An increase in the key metabolic enzymes such as DDC, MAO, COMT, TH, and DβH was observed in the SHR group, whereas their levels decreased after treatment with isorhynchophylline. The expression of GAD67 established cross-current validity. So, isorhynchophylline has been proved to have potential therapeutic value to treat hypertension via tyrosine and glutamate metabolism in the hippocampus. Further, the current study also opened new ventures to further investigate the working mechanism of isorhynchophylline in hypertension.
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Affiliation(s)
- Homood Alharbi
- Department of Medical Surgical Nursing, College of Nursing, King Saud University, Riyadh, Saudi Arabia
| | - Mohammad Ahmad
- Department of Medical Surgical Nursing, College of Nursing, King Saud University, Riyadh, Saudi Arabia
| | - Zhenhua Tian
- Department of Pharmaceutical Sciences, Traditional Chinese Medicine, Shandong University, Jinan, China
| | - Ruixue Yu
- Department of Pharmaceutical Sciences, Traditional Chinese Medicine, Shandong University, Jinan, China
| | - Yun Lun Li
- Department of Pharmaceutical Sciences, Traditional Chinese Medicine, Shandong University, Jinan, China
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Li Y, Yu R, Zhang D, Yang W, Hou Q, Li Y, Jiang H. Deciphering the Mechanism of the Anti-Hypertensive Effect of Isorhynchophylline by Targeting Neurotransmitters Metabolism of Hypothalamus in Spontaneously Hypertensive Rats. ACS Chem Neurosci 2020; 11:1563-1572. [PMID: 32356970 DOI: 10.1021/acschemneuro.9b00699] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Essential hypertension is a major risk factor for cardiovascular disease that can lead eventually to structural and functional alterations in the brain. Accumulating evidence has suggested that the increased activities in renin-angiotensin system and sympathetic nerve participated in the pathogenesis of hypertension that is related to the imbalance between neurotransmitters. The potential role in essential hypertension arising from alterations of neurotransmitters in the central nervous system remains understudied. Isorhynchophylline is a major oxindole alkaloid extracted from Uncaria rhynchophylla, which has been widely used for treating hypertension and neurodegenerative diseases. Whether isorhynchophylline acts on neurotransmitters to lower blood pressure has been hypothesized but rarely demonstrated unequivocally. Here, we studied the metabolic neurotransmitter profiles in the hypothalamus using a targeted metabolomic approach in spontaneously hypertensive rats after isorhynchophylline intervention. Our study demonstrated that isorhynchophylline exhibited a strong anti-hypertensive effect in spontaneously hypertensive rats by improving the neurotransmitter imbalance in the hypothalamus and inhibiting the overactivation of the renin-angiotensin system and sympathetic nerve system. Overall, this study played an essential role in enhancing our understanding of the mechanism of isorhynchophylline in essential hypertension and in providing theoretical evidence for future research and clinical application.
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Affiliation(s)
- Yuan Li
- Experimental Center, Shandong University of Traditional Chinese Medicine, Jinan 250355, Shandong, China
- Key Laboratory of Traditional Chinese Medicine Classical Theory, Ministry of Education, Shandong University of Traditional Chinese Medicine, Jinan 250355, Shandong, China
- Shandong Provincial Key Laboratory of Traditional Chinese Medicine for Basic Research, Shandong University of Traditional Chinese Medicine, Jinan 250355, Shandong, China
| | - Ruixue Yu
- College of Pharmaceutical Sciences, Shandong University of Traditional Chinese Medicine, Jinan 250355, Shandong China
| | - Dan Zhang
- Experimental Center, Shandong University of Traditional Chinese Medicine, Jinan 250355, Shandong, China
- Key Laboratory of Traditional Chinese Medicine Classical Theory, Ministry of Education, Shandong University of Traditional Chinese Medicine, Jinan 250355, Shandong, China
- Shandong Provincial Key Laboratory of Traditional Chinese Medicine for Basic Research, Shandong University of Traditional Chinese Medicine, Jinan 250355, Shandong, China
| | - Wenqing Yang
- Experimental Center, Shandong University of Traditional Chinese Medicine, Jinan 250355, Shandong, China
- Key Laboratory of Traditional Chinese Medicine Classical Theory, Ministry of Education, Shandong University of Traditional Chinese Medicine, Jinan 250355, Shandong, China
- Shandong Provincial Key Laboratory of Traditional Chinese Medicine for Basic Research, Shandong University of Traditional Chinese Medicine, Jinan 250355, Shandong, China
| | - Qingqing Hou
- College of Pharmaceutical Sciences, Shandong University of Traditional Chinese Medicine, Jinan 250355, Shandong China
| | - Yunlun Li
- Experimental Center, Shandong University of Traditional Chinese Medicine, Jinan 250355, Shandong, China
- Traditional Chinese Medicine Clinical Research Base for Hypertension, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan 250011, Shandong, China
| | - Haiqiang Jiang
- Experimental Center, Shandong University of Traditional Chinese Medicine, Jinan 250355, Shandong, China
- Key Laboratory of Traditional Chinese Medicine Classical Theory, Ministry of Education, Shandong University of Traditional Chinese Medicine, Jinan 250355, Shandong, China
- Shandong Provincial Key Laboratory of Traditional Chinese Medicine for Basic Research, Shandong University of Traditional Chinese Medicine, Jinan 250355, Shandong, China
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