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  1. Article ; Online: The safety and efficacy of melatonin in the treatment of COVID-19: A systematic review and meta-analysis.

    Wang, Xin-Chen / Wu, Guang-Liang / Cai, Ye-Feng / Zhang, Shi-Jie

    Medicine

    2022  Volume 101, Issue 39, Page(s) e30874

    Abstract: Background: As an infectious disease caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the common signs of coronavirus disease 2019 (COVID-19) are respiratory symptoms, fever, cough, shortness of breath, and dyspnea, with ... ...

    Abstract Background: As an infectious disease caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the common signs of coronavirus disease 2019 (COVID-19) are respiratory symptoms, fever, cough, shortness of breath, and dyspnea, with multiple organ injuries in severe cases. Therefore, finding drugs to prevent and treat COVID-19 is urgently needed and expected by the public. Several studies suggested beneficial effects of melatonin for the relevant prevention and treatment. To explore the effect and safety of melatonin in the treatment and provide theoretical support and reference for seeking the most suitable drug for COVID-19, the meta-analysis was carried out accordingly.
    Methods: It included randomized clinical trials of patients with COVID-19 treated with melatonin. Total effective rate was the primary outcome, while C-reactive protein (CRP), arterial oxygen saturation (SaO2), white blood cell count (WBC) were the secondary measures. Random-effect and fixed-effect models were used to evaluate the effect size of some indicators in this meta-analysis.
    Results: Six eligible studies with 338 participants were included. One hundred seventy subjects were treated with melatonin adjuvant therapy and 168 subjects were assigned to the control group, with total excellent effective rate in subjects treated with melatonin [odds ratio = 3.05, 95 % confidence interval (CI) = 1.47, 6.31, P = .003]. Homogeneity was analyzed by fixed effect model (I2 = 0%). There was no significant difference in CRP between the melatonin group and the control group (weighted mean difference [WMD] = -0.36, 95% CI = -3.65, 2.92, P = .83). Significant difference was not existed in SaO2 between the melatonin treatment group and the control group (WMD = 1, 95% CI = -1.21, 3.22, P = .37). In terms of WBC, there was no significant difference between the 2 groups (WMD = -1.07, 95% CI = -2.44, 0.30, P = .13).
    Conclusions: The meta-analysis showed that melatonin had the beneficial effects for COVID-19 prevention and treatment as an adjunctive agent in combination with basic treatment for the treatment.
    MeSH term(s) C-Reactive Protein ; COVID-19/drug therapy ; Cough/drug therapy ; Dyspnea/drug therapy ; Humans ; Melatonin/therapeutic use ; SARS-CoV-2
    Chemical Substances C-Reactive Protein (9007-41-4) ; Melatonin (JL5DK93RCL)
    Language English
    Publishing date 2022-09-30
    Publishing country United States
    Document type Journal Article ; Meta-Analysis ; Systematic Review
    ZDB-ID 80184-7
    ISSN 1536-5964 ; 0025-7974
    ISSN (online) 1536-5964
    ISSN 0025-7974
    DOI 10.1097/MD.0000000000030874
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Tanshinone IIA ameliorates Aβ transendothelial transportation through SIRT1-mediated endoplasmic reticulum stress.

    Wan, Can / Liu, Xiao-Qi / Chen, Mei / Ma, Hui-Han / Wu, Guang-Liang / Qiao, Li-Jun / Cai, Ye-Feng / Zhang, Shi-Jie

    Journal of translational medicine

    2023  Volume 21, Issue 1, Page(s) 34

    Abstract: Background: The disruption of blood-brain barrier (BBB), predominantly made up by brain microvascular endothelial cells (BMECs), is one of the characteristics of Alzheimer's disease (AD). Thus, improving BMEC function may be beneficial for AD treatment. ...

    Abstract Background: The disruption of blood-brain barrier (BBB), predominantly made up by brain microvascular endothelial cells (BMECs), is one of the characteristics of Alzheimer's disease (AD). Thus, improving BMEC function may be beneficial for AD treatment. Tanshinone IIA (Tan IIA) has been proved to ameliorate the cognitive dysfunction of AD. Herein, we explored how Tan IIA affected the function of BMECs in AD.
    Methods:
    Results: Molecular docking and qPCR results showed that Tan IIA mainly acted on Sirtuin1 (SIRT1) in Sirtuins family. The inhibitor of SIRT1 (EX527) was employed to further substantiate that Tan IIA could attenuate SIRT1-mediated endoplasmic reticulum stress (ER stress) in BMECs. Behavioral tests suggested that Tan IIA could improve the cognitive deficits in APP/PS1 mice. Tan IIA administration increased SIRT1 expression and alleviated ER stress in APP/PS1 mice. In addition, LRP1 expression was increased and RAGE expression was decreased after Tan IIA administration in both animals and cells.
    Conclusion: Tan IIA could promote Aβ transportation by alleviating SIRT1-mediated ER stress in BMECs, which ameliorated cognitive deficits in APP/PS1 mice.
    MeSH term(s) Mice ; Animals ; Endothelial Cells/metabolism ; Sirtuin 1/metabolism ; Molecular Docking Simulation ; Endoplasmic Reticulum Stress ; Alzheimer Disease/drug therapy ; Disease Models, Animal
    Chemical Substances Sirtuin 1 (EC 3.5.1.-) ; tanshinone (03UUH3J385) ; Sirt1 protein, mouse (EC 3.5.1.-)
    Language English
    Publishing date 2023-01-20
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2118570-0
    ISSN 1479-5876 ; 1479-5876
    ISSN (online) 1479-5876
    ISSN 1479-5876
    DOI 10.1186/s12967-023-03889-y
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Tanshinone IIA, the key compound in Salvia miltiorrhiza, improves cognitive impairment by upregulating Aβ-degrading enzymes in APP/PS1 mice.

    Liu, Xiao-Qi / Hu, Tian / Wu, Guang-Liang / Qiao, Li-Jun / Cai, Ye-Feng / Wang, Qi / Zhang, Shi-Jie

    International journal of biological macromolecules

    2023  Volume 254, Issue Pt 2, Page(s) 127923

    Abstract: In Alzheimer's disease (AD), amyloid-beta (Aβ) plays a crucial role in pathogenesis. Clearing Aβ from the brain is considered as a key therapeutic strategy. Previous studies indicated that Salvia miltiorrhiza (Danshen) could protect against AD. However, ... ...

    Abstract In Alzheimer's disease (AD), amyloid-beta (Aβ) plays a crucial role in pathogenesis. Clearing Aβ from the brain is considered as a key therapeutic strategy. Previous studies indicated that Salvia miltiorrhiza (Danshen) could protect against AD. However, the main anti-AD components in Danshen and their specific mechanisms are not clear. In this study, pharmacological network analysis indicated that Tanshinone IIA (Tan IIA) was identified as the key active compound in Danshen contributing to protect against AD. Then, APP/PS1 double transgenic mice were employed to examine the neuroprotective effect of Tan IIA. APP/PS1 mice (age, 6 months) were administered (10 and 20 mg/kg) for 8 weeks. Tan IIA improved learning and anxiety behaviors in APP/PS1 mice. Furthermore, Tan IIA reduced oxidative stress, inhibited neuronal apoptosis, improved cholinergic nervous system and decreased endoplasmic reticulum stress in the brain of APP/PS1 mice. Moreover, Tan IIA treatment reduced the level of Aβ. Molecular docking result showed that Tan IIA might block AD by upregulating Aβ-degrading enzymes. Western blot results confirmed that the expressions of insulin degrading enzymes (IDE) and neprilysin (NEP) were significantly increased after Tan IIA treatment, which demonstrated that Tan IIA improved AD by increasing Aβ-degrading enzymes.
    MeSH term(s) Mice ; Animals ; Salvia miltiorrhiza ; Molecular Docking Simulation ; Amyloid beta-Peptides/metabolism ; Alzheimer Disease/metabolism ; Mice, Transgenic ; Cognitive Dysfunction/drug therapy ; Disease Models, Animal
    Chemical Substances tanshinone (03UUH3J385) ; Amyloid beta-Peptides
    Language English
    Publishing date 2023-11-07
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 282732-3
    ISSN 1879-0003 ; 0141-8130
    ISSN (online) 1879-0003
    ISSN 0141-8130
    DOI 10.1016/j.ijbiomac.2023.127923
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Taohong siwu decoction ameliorates cognitive dysfunction through SIRT6/ER stress pathway in Alzheimer's disease.

    Tan, Hong-Yu / Wan, Can / Wu, Guang-Liang / Qiao, Li-Jun / Cai, Ye-Feng / Wang, Qi / Zhang, Shi-Jie

    Journal of ethnopharmacology

    2023  Volume 314, Page(s) 116580

    Abstract: Ethnopharmacological relevance: A growing number of people suffer from Alzheimer's disease (AD), but there is currently no effective treatment yet. Taohong Siwu Decoction (TSD) has been proved to take strong neuropharmacological activity on dementia, ... ...

    Abstract Ethnopharmacological relevance: A growing number of people suffer from Alzheimer's disease (AD), but there is currently no effective treatment yet. Taohong Siwu Decoction (TSD) has been proved to take strong neuropharmacological activity on dementia, but the effect and mechanism of TSD against AD are still elusive.
    Aim of study: To investigate whether TSD could be effective in ameliorating cognitive deficits through SIRT6/ER stress pathway.
    Materials and methods: Herein, the APP/PS1 mice, an AD model, and HT-22 cell lines were utilized. Different dosages of TSD (4.25, 8.50 and 17.00 g/kg/d) were administered to the mice for 10 weeks by gavage. Following the behavioral tests, oxidative stress levels were measured using malondialdehyde (MDA) and superoxide dismutase (SOD) kits. Nissl staining and Western blot analyses were used to detect the neuronal function. Then, immunofluorescence and Western blot analysis were applied to evaluate silent information regulator 6 (SIRT6) and ER Stress related protein levels in APP/PS1 mice and HT-22 cells.
    Results: Behavioral tests revealed that APP/PS1 mice administered with TSD orally took more time in the target quadrant, crossed more times in the target quadrant, had a higher recognition coefficient, and spent more time in the central region. In addition, TSD could ameliorate oxidative stress and inhibit neuronal apoptosis in APP/PS1 mice. Furthermore, TSD could up-regulate the SIRT6 protein expression and inhibit ER sensing proteins expressions, such as p-PERK and ATF6, in APP/PS1 mice and Aβ
    Conclusion: According to the abovementioned findings, TSD could alleviate cognitive dysfunction in AD by modulating the SIRT6/ER stress pathway.
    MeSH term(s) Mice ; Animals ; Alzheimer Disease/drug therapy ; Alzheimer Disease/metabolism ; Drugs, Chinese Herbal/pharmacology ; Drugs, Chinese Herbal/therapeutic use ; Cognitive Dysfunction/drug therapy ; Sirtuins ; Mice, Transgenic ; Disease Models, Animal
    Chemical Substances Taohong Siwu decoction II ; Drugs, Chinese Herbal ; Sirtuins (EC 3.5.1.-) ; Sirt6 protein, mouse (EC 2.4.2.31)
    Language English
    Publishing date 2023-05-02
    Publishing country Ireland
    Document type Journal Article
    ZDB-ID 134511-4
    ISSN 1872-7573 ; 0378-8741
    ISSN (online) 1872-7573
    ISSN 0378-8741
    DOI 10.1016/j.jep.2023.116580
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Ethanol extract of

    Hu, Rui-Dan / Zhu, Wen-Li / Lin, Wei-Yao / Qiu, Yu-Hui / Wu, Guang-Liang / Ding, Xiao-Ying / Yang, Zhen-Kun / Feng, Qian / Zhang, Rong-Rong / Qiao, Li-Jun / Cai, Ye-Feng / Zhang, Shi-Jie

    Aging

    2024  Volume 16, Issue 3, Page(s) 2385–2397

    Abstract: ... Evodia ... ...

    Abstract Evodia lepta
    MeSH term(s) Mice ; Animals ; Inflammasomes ; Evodia/metabolism ; NLR Family, Pyrin Domain-Containing 3 Protein/metabolism ; Scopolamine/toxicity ; Ethanol/toxicity ; Plant Extracts/pharmacology ; Plant Extracts/therapeutic use ; Cognitive Dysfunction/drug therapy ; Cognitive Dysfunction/metabolism
    Chemical Substances Inflammasomes ; NLR Family, Pyrin Domain-Containing 3 Protein ; Scopolamine (DL48G20X8X) ; Ethanol (3K9958V90M) ; Plant Extracts
    Language English
    Publishing date 2024-01-26
    Publishing country United States
    Document type Journal Article
    ISSN 1945-4589
    ISSN (online) 1945-4589
    DOI 10.18632/aging.205486
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: A Review on the Progress of Purification Techniques for High Precision Determination of Cr Isotopes in Geological Samples

    SHI Kai / ZHU Jian-ming / WU Guang-liang / WANG Jing / ZENG Li

    Yankuang ceshi, Vol 38, Iss 3, Pp 341-

    2019  Volume 353

    Abstract: BACKGROUND With the development of Multi-collector Thermal Ionization Mass Spectrometry (MC-TIMS) and Multi-collector Inductively Coupled Plasma-Mass Spectrometry (MC-ICP-MS), Cr isotopes had been successfully measured at a high resolution. Chromium ... ...

    Abstract BACKGROUND With the development of Multi-collector Thermal Ionization Mass Spectrometry (MC-TIMS) and Multi-collector Inductively Coupled Plasma-Mass Spectrometry (MC-ICP-MS), Cr isotopes had been successfully measured at a high resolution. Chromium isotopes have shown good application potential in the fields of environmental geochemistry, agroecology and cosmochemistry. However, sample purification and interference correction are still the main factors that suppress the high-resolution measurement of Cr isotopes. The development of a high-recovery, universal and efficient separation and purification method is an urgent problem to be solved. OBJECTIVES To discuss the purification of Cr isotopes in geological and environmental samples, interference and mass discrimination correction during measurement of MC-ICP-MS. METHODS This study compared and analyzed the current chemical separation and purification methods and main instrumental analysis techniques commonly used for chromium isotopes (e.g. MC-ICP-MS), and discussed the current mainstream quality discrimination correction methods. The combination of anion and cation exchange resin with strong oxidants such as K2S2O8 can effectively separate Cr from low Cr samples with high matrix contents, which is a more universal purification method. Medium-high resolution and static measurement mode was used during MC-ICP-MS analysis and Cr isotopes double spike method to correct mass discrimination effect. RESULTS The analytical precision of δ53/52Cr was 0.04‰ (2SD), similar to that of TIMS. Moreover, the minimum analytical sample was 10ng, thus isotope analysis of ultra-micro chromium can be achieved. CONCLUSIONS The proposed method cannot only separate the polyatomic ion interference, but can also perform high-precision Cr isotope analysis. It is necessary to reduce the process blank, remove the interfering elements and completely separate the different forms of chromium.
    Keywords cr isotopes ; purification schemes ; low cr samples ; multi-collector thermal ionization mass spectrometry ; multi-collector inductively coupled plasma-mass spectrometry ; Geology ; QE1-996.5 ; Ecology ; QH540-549.5
    Subject code 670
    Language English
    Publishing date 2019-05-01T00:00:00Z
    Publisher Science Press, PR China
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  7. Article ; Online: Hydroxysafflor Yellow A Exerts Neuroprotective Effect by Reducing Aβ Toxicity Through Inhibiting Endoplasmic Reticulum Stress in Oxygen-Glucose Deprivation/Reperfusion Cell Model.

    Ma, Hui-Han / Wen, Jun-Ru / Fang, Hao / Su, Shan / Wan, Can / Zhang, Chao / Lu, Fang-Mei / Fan, Ling-Ling / Wu, Guang-Liang / Zhou, Zi-Yi / Qiao, Li-Jun / Zhang, Shi-Jie / Cai, Ye-Feng

    Rejuvenation research

    2023  Volume 26, Issue 2, Page(s) 57–67

    Abstract: Ischemia stroke is thought to be one of the vascular risks associated with neurodegenerative diseases, such as Alzheimer's disease (AD). Hydroxysafflor yellow A (HSYA) has been reported to protect against stroke and AD, while the underlying mechanism ... ...

    Abstract Ischemia stroke is thought to be one of the vascular risks associated with neurodegenerative diseases, such as Alzheimer's disease (AD). Hydroxysafflor yellow A (HSYA) has been reported to protect against stroke and AD, while the underlying mechanism remains unclear. In this study, SH-SY5Y cell model treated with oxygen-glucose deprivation/reperfusion (OGD/R) was used to explore the potential mechanism of HSYA. Results from cell counting kit-8 (CCK-8) showed that 10 μM HSYA restored the cell viability after OGD 2 hours/R 24 hours. HSYA reduced the levels of malondialdehyde and reactive oxygen species, while improved the levels of superoxide dismutase and glutathione peroxidase. Furthermore, apoptosis was inhibited, and the expression of brain-derived neurotrophic factor was improved after HSYA treatment. In addition, the expression levels of amyloid-β peptides (Aβ) and BACE1 were decreased by HSYA, as well as the expression levels of binding immunoglobulin heavy chain protein, PKR-like endoplasmic reticulum (ER) kinase pathway, and activating transcription factor 6 pathway, whereas the expression level of protein disulfide isomerase was increased. Based on these results, HSYA might reduce Aβ toxicity after OGD/R by interfering with apoptosis, oxidation, and neurotrophic factors, as well as relieving ER stress.
    MeSH term(s) Humans ; Oxygen/metabolism ; Neuroprotective Agents/pharmacology ; Amyloid Precursor Protein Secretases/pharmacology ; Glucose/metabolism ; Aspartic Acid Endopeptidases/pharmacology ; Neuroblastoma ; Quinones/pharmacology ; Apoptosis ; Chalcone/pharmacology ; Reperfusion Injury/metabolism ; Stroke ; Reperfusion ; Endoplasmic Reticulum Stress
    Chemical Substances Oxygen (S88TT14065) ; Neuroprotective Agents ; hydroxysafflor yellow A (146087-19-6) ; Amyloid Precursor Protein Secretases (EC 3.4.-) ; Glucose (IY9XDZ35W2) ; Aspartic Acid Endopeptidases (EC 3.4.23.-) ; Quinones ; Chalcone (5S5A2Q39HX)
    Language English
    Publishing date 2023-03-20
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2150779-X
    ISSN 1557-8577 ; 1549-1684
    ISSN (online) 1557-8577
    ISSN 1549-1684
    DOI 10.1089/rej.2022.0054
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Effect of Zhuang Jing Decoction on Learning and Memory Ability in Aging Rats.

    Cai, Hao-Bin / Wu, Guang-Liang / Huang, Cen-Han / Huang, Zhong-Shi / Chen, Yun-Bo / Wang, Qi

    Rejuvenation research

    2016  Volume 19, Issue 4, Page(s) 303–308

    Abstract: With the average life span of humans on the rise, aging in the world has drawn considerable attentions. The monoamine neurotransmitters and neurotrophic factors in brain areas are involved in learning and memory processes and are an essential part of ... ...

    Abstract With the average life span of humans on the rise, aging in the world has drawn considerable attentions. The monoamine neurotransmitters and neurotrophic factors in brain areas are involved in learning and memory processes and are an essential part of normal synaptic neurotransmission and plasticity. In the present study, the effect of Zhuang Jing Decoction (ZJD) on the learning and memory ability in aging rats was examined in vivo using Morris water maze. Furthermore, the levels of monoamine neurotransmitters and neurotrophic factors in brain were detected by high-performance liquid chromatography with a fluorescence detector and enzyme-linked immunosorbent assay, respectively. These data showed that oral administration with ZJD at the dose of 30 g·kg(-1) exerted an improved effect on learning and memory ability in aging rats. The results revealed that ZJD could effectively adjust the monoamine neurotransmitters and neurotrophic factors, restore the balance of the level of monoamine neurotransmitters and neurotrophic factors in brain, and finally attenuate the degeneration of learning and memory ability. These findings suggested that ZJD might be a potential agent as cognitive-enhancing drug in improving learning and memory ability. It may exert through regulating the levels of monoamine neurotransmitters and neurotrophic factors in brain, which demonstrated that ZJD had certain antiaging effects.
    MeSH term(s) Age Factors ; Aging/metabolism ; Aging/psychology ; Animals ; Behavior, Animal/drug effects ; Brain/drug effects ; Brain/metabolism ; Chromatography, High Pressure Liquid ; Dopamine/metabolism ; Dose-Response Relationship, Drug ; Drugs, Chinese Herbal/pharmacology ; Enzyme-Linked Immunosorbent Assay ; Female ; Maze Learning/drug effects ; Memory/drug effects ; Nerve Growth Factors/metabolism ; Norepinephrine/metabolism ; Rats, Sprague-Dawley ; Serotonin/metabolism ; Spectrometry, Fluorescence ; Time Factors
    Chemical Substances Drugs, Chinese Herbal ; Nerve Growth Factors ; zhuang jing ; Serotonin (333DO1RDJY) ; Dopamine (VTD58H1Z2X) ; Norepinephrine (X4W3ENH1CV)
    Language English
    Publishing date 2016-08
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2150779-X
    ISSN 1557-8577 ; 1549-1684
    ISSN (online) 1557-8577
    ISSN 1549-1684
    DOI 10.1089/rej.2015.1751
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article: [Correlation study on 12p13 single nucleotide polymorphism rs12425791 and Chinese medical syndrome types in ischemic stroke patients of the Han nationality].

    Xie, Juan-Juan / Gu, Lian / Chen, Qing / Wu, Guang-Liang / Yan, Yan / Su, Li

    Zhongguo Zhong xi yi jie he za zhi Zhongguo Zhongxiyi jiehe zazhi = Chinese journal of integrated traditional and Western medicine

    2013  Volume 33, Issue 1, Page(s) 47–50

    Abstract: Objective: To explore the correlation between 12p13 single nucleotide polymorphism (SNP) rs12425791 and Chinese medical syndrome types of ischemic stroke patients of the Han nationality.: Methods: A case-control study was used. Recruited were 148 ... ...

    Abstract Objective: To explore the correlation between 12p13 single nucleotide polymorphism (SNP) rs12425791 and Chinese medical syndrome types of ischemic stroke patients of the Han nationality.
    Methods: A case-control study was used. Recruited were 148 ischemic stroke patients of the Han nationality (67 patients of phlegm syndrome and 81 patients of blood stasis syndrome). Another 192 healthy subjects were recruited as the control group. The genotypes of rs12425791 were performed by TaqMan SNP genotyping assays to analyze the distribution of genes and the distribution frequency of alleles.
    Results: There was no statistical difference in the genotype and alleles of rs12425791 between the ischemic stroke patients of phlegm syndrome and the control group, or between the ischemic stroke patients of blood stasis syndrome and the control group (P > 0.05).
    Conclusion: Our results did not support that 12p13 common variant rs12425791 was correlated with the pathogeneses of ischemic stroke patients of phlegm syndrome and ischemic stroke patients of blood stasis syndrome.
    MeSH term(s) Aged ; Aged, 80 and over ; Alleles ; Asian Continental Ancestry Group/genetics ; Case-Control Studies ; Chromosomes, Human, Pair 12 ; Ethnic Groups/genetics ; Female ; Genotype ; Humans ; Male ; Medicine, Chinese Traditional ; Middle Aged ; Polymorphism, Single Nucleotide ; Risk Factors ; Stroke/diagnosis ; Stroke/genetics
    Language Chinese
    Publishing date 2013-01
    Publishing country China
    Document type English Abstract ; Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 1195456-5
    ISSN 1003-5370
    ISSN 1003-5370
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Induction of thoracic aortic remodeling by endothelial-specific deletion of microRNA-21 in mice.

    Zhang, Xing-Yi / Shen, Bao-Rong / Zhang, Yu-Cheng / Wan, Xue-Jiao / Yao, Qing-Ping / Wu, Guang-Liang / Wang, Ji-Yao / Chen, Si-Guo / Yan, Zhi-Qiang / Jiang, Zong-Lai

    PloS one

    2013  Volume 8, Issue 3, Page(s) e59002

    Abstract: MicroRNAs (miRs) are known to have an important role in modulating vascular biology. MiR21 was found to be involved in the pathogenesis of proliferative vascular disease. The role of miR21 in endothelial cells (ECs) has well studied in vitro, but the ... ...

    Abstract MicroRNAs (miRs) are known to have an important role in modulating vascular biology. MiR21 was found to be involved in the pathogenesis of proliferative vascular disease. The role of miR21 in endothelial cells (ECs) has well studied in vitro, but the study in vivo remains to be elucidated. In this study, miR21 endothelial-specific knockout mice were generated by Cre/LoxP system. Compared with wild-type mice, the miR21 deletion in ECs resulted in structural and functional remodeling of aorta significantly, such as diastolic pressure dropping, maximal tension depression, endothelium-dependent relaxation impairment, an increase of opening angles and wall-thickness/inner diameter ratio, and compliance decrease, in the miR21 endothelial-specific knockout mice. Furthermore, the miR21 deletion in ECs induced down-regulation of collagen I, collagen III and elastin mRNA and proteins, as well as up-regulation of Smad7 and down-regulation of Smad2/5 in the aorta of miR21 endothelial-specific knockout mice. CTGF and downstream MMP/TIMP changes were also identified to mediate vascular remodeling. The results showed that miR21 is identified as a critical molecule to modulate vascular remodeling, which will help to understand the role of miR21 in vascular biology and the pathogenesis of vascular diseases.
    MeSH term(s) Acetylcholine/pharmacology ; Animals ; Aorta, Thoracic/drug effects ; Aorta, Thoracic/metabolism ; Aorta, Thoracic/pathology ; Blood Pressure/genetics ; Collagen/metabolism ; Connective Tissue Growth Factor/metabolism ; Elastin/metabolism ; Endothelium, Vascular/drug effects ; Endothelium, Vascular/metabolism ; Extracellular Matrix/metabolism ; Female ; Gene Deletion ; Gene Order ; Gene Targeting ; Male ; Matrix Metalloproteinases/metabolism ; Mice ; Mice, Knockout ; MicroRNAs ; Smad2 Protein/metabolism ; Smad5 Protein/metabolism ; Time Factors ; Transforming Growth Factor beta1/metabolism
    Chemical Substances MIRN21 microRNA, mouse ; MicroRNAs ; Smad2 Protein ; Smad5 Protein ; Transforming Growth Factor beta1 ; Connective Tissue Growth Factor (139568-91-5) ; Collagen (9007-34-5) ; Elastin (9007-58-3) ; Matrix Metalloproteinases (EC 3.4.24.-) ; Acetylcholine (N9YNS0M02X)
    Language English
    Publishing date 2013-03-18
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ISSN 1932-6203
    ISSN (online) 1932-6203
    DOI 10.1371/journal.pone.0059002
    Database MEDical Literature Analysis and Retrieval System OnLINE

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