LIVIVO - The Search Portal for Life Sciences

zur deutschen Oberfläche wechseln
Advanced search

Search results

Result 1 - 5 of total 5

Search options

  1. Article ; Online: Identification of a Novel Angiogenesis Signalling circSCRG1/miR-1268b/NR4A1 Pathway in Atherosclerosis and the Regulatory Effects of TMP-PF In Vitro

    Rong Yuan / Qiqi Xin / Xiaochang Ma / Meng Yu / Yu Miao / Keji Chen / Weihong Cong

    Molecules, Vol 28, Iss 1271, p

    2023  Volume 1271

    Abstract: Angiogenesis contributes to plaque instability in atherosclerosis and further increases cardio-cerebrovascular risk. Circular RNAs (circRNAs) are promising biomarkers and potential therapeutic targets for atherosclerosis. Previous studies have ... ...

    Abstract Angiogenesis contributes to plaque instability in atherosclerosis and further increases cardio-cerebrovascular risk. Circular RNAs (circRNAs) are promising biomarkers and potential therapeutic targets for atherosclerosis. Previous studies have demonstrated that tetramethylpyrazine (TMP) and paeoniflorin (PF) combination treatment (TMP-PF) inhibited oxidized low-density lipoprotein (ox-LDL)-induced angiogenesis in vitro. However, whether circRNAs regulate angiogenesis in atherosclerosis and whether TMP-PF can regulate angiogenesis-related target circRNAs in atherosclerosis are unknown. In this study, human RNA sequencing (RNA-seq) data were analysed to identify differentially expressed (DE) circRNAs in atherosclerosis and to obtain angiogenesis-associated circRNA-microRNA (miRNA)-messenger RNA (mRNA) networks. Target circRNA-related mechanisms in angiogenesis in atherosclerosis and the regulatory effects of TMP-PF on target circRNA signalling were studied in ox-LDL-induced human umbilical vein endothelial cells (HUVECs) by cell proliferation, migration, tube formation, and luciferase reporter assays, real-time quantitative polymerase chain reaction (RT-qPCR) and Western blotting. A novel circRNA (circular stimulator of chondrogenesis 1, circSCRG1) was initially identified associated with angiogenesis in atherosclerosis, and circSCRG1 silencing up-regulated miR-1268b expression, increased nuclear receptor subfamily 4 group A member 1 (NR4A1) expression and then promoted ox-LDL-induced angiogenesis. TMP-PF (1 μmol/L TMP combined with 10 μmol/L PF) up-regulated circSCRG1 expression, mediated miR-1268b to suppress NR4A1 expression and then inhibited ox-LDL-induced angiogenesis. However, circSCRG1 silencing abolished the inhibitory effects of TMP-PF on ox-LDL-induced angiogenesis, which were rescued by the miR-1268b inhibitor. In conclusion, circSCRG1 might serve as a new target regulating angiogenesis in atherosclerosis via the circSCRG1/miR-1268b/NR4A1 axis and TMP-PF could regulate the circSCRG1/miR-1268b/NR4A1 ...
    Keywords atherosclerosis ; plaque stability ; cardio-cerebrovascular disease ; neovascularization ; circRNA ; Chinese medicine ; Organic chemistry ; QD241-441
    Subject code 616
    Language English
    Publishing date 2023-01-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    Full text online

    More links

    Kategorien

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  2. Article ; Online: Efficacy and Safety of Different Courses of Tongxinluo Capsule as Adjuvant Therapy for Coronary Heart Disease after Percutaneous Coronary Intervention

    Jiaqi Hui / Rong Yuan / Pengqi Li / Qiqi Xin / Yu Miao / Xiaoxu Shen / Fengqin Xu / Weihong Cong

    Journal of Clinical Medicine, Vol 11, Iss 2991, p

    A Systematic Review and Meta-Analysis of Randomized Controlled Trials

    2022  Volume 2991

    Abstract: Tongxinluo capsule (TXLC) is a widely used traditional Chinese medicine for coronary heart disease (CHD). However, the efficacy and safety of different courses of TXLC for CHD after percutaneous coronary intervention (PCI) have not been systematically ... ...

    Abstract Tongxinluo capsule (TXLC) is a widely used traditional Chinese medicine for coronary heart disease (CHD). However, the efficacy and safety of different courses of TXLC for CHD after percutaneous coronary intervention (PCI) have not been systematically evaluated yet. The Cochrane Library, PubMed, Embase, China National Knowledge Infrastructure, Wanfang Database, and Chinese Scientific Journal Database were searched from the inception to 26 August 2021. A meta-analysis was performed using a fixed- or random-effects model. The risk of adverse cardiovascular events, mortality, or adverse effects was evaluated by risk ratio (RR) with 95% confidence interval (CI). Thirty-four studies involving 3652 patients were finally included. After the 6-month treatment, compared with conventional treatment alone, TXLC combined with conventional treatment achieved better efficacy in lowering the risk of angiographic restenosis (RR = 0.37, 95% CI = 0.28–0.48, p < 0.001), myocardial infarction (RR = 0.38, 95% CI = 0.25–0.60, p < 0.001), heart failure (RR = 0.32, 95% CI = 0.18–0.56, p < 0.001), angina (RR = 0.26, 95% CI = 0.17–0.38, p < 0.001), revascularization (RR = 0.20, 95% CI = 0.09–0.46, p < 0.001), all-cause mortality (RR = 0.24, 95% CI = 0.10–0.58, p = 0.001), and mortality due to any cardiovascular event (RR = 0.27, 95% CI = 0.09–0.80, p = 0.018). After the 12-month treatment, TXLC reduced the recurrence risk of angina (RR = 0.40, 95% CI = 0.20–0.80, p = 0.009). However, there was no difference in any outcomes after the 3-month treatment. Besides, no difference was found in the incidence of adverse effects after the 3-month and 6-month treatments (3 months: RR = 0.73, 95% CI = 0.35–1.56, p = 0.418; 6 months: RR = 1.71, 95% CI = 0.74–3.93, p = 0.209). The certainty of evidence ranged from very low to moderate due to the risk of bias, inconsistency, and imprecision. TXLC showed beneficial effects on reducing the adverse cardiovascular events without compromising safety for CHD patients after PCI on the 6-month ...
    Keywords Tongxinluo capsule ; coronary heart disease ; percutaneous coronary intervention ; meta-analysis ; systematic review ; traditional Chinese medicine ; Medicine ; R
    Subject code 610
    Language English
    Publishing date 2022-05-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    Full text online

    More links

    Kategorien

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  3. Article ; Online: Efficacy and Safety of Tongxinluo Capsule as Adjunctive Treatment for Unstable Angina Pectoris

    Pengqi Li / Qiqi Xin / Jiaqi Hui / Rong Yuan / Ya Wang / Yu Miao / Simon Ming-Yuen Lee / Sean X. Leng / Weihong Cong / BPNMI Consortium

    Frontiers in Pharmacology, Vol

    A Systematic Review and Meta-Analysis of Randomized Controlled Trials

    2021  Volume 12

    Abstract: Tongxinluo capsule (TXLC) is a commonly used Chinese medicine for unstable angina pectoris (UA). This article aimed to clarify the safety and efficacy of TXLC as an adjunctive treatment for UA. Two reviewers searched 7 databases from inception to August ... ...

    Abstract Tongxinluo capsule (TXLC) is a commonly used Chinese medicine for unstable angina pectoris (UA). This article aimed to clarify the safety and efficacy of TXLC as an adjunctive treatment for UA. Two reviewers searched 7 databases from inception to August 2021, and performed literature screening and information extraction independently. The meta-analysis was implemented after evaluating the methodological quality of each randomized controlled trial (RCT) by the Cochrane Risk of Bias tool. Sensitivity analyses were conducted for testing the stability of the results, and the Begg and Egger tests were performed for any potential publication bias. After eligibility assessment, 42 RCTs with a total of 5,421 participants were included. Evidence showed that TXLC reduced the rate of cardiovascular events [RR = 0.29, 95% CI (0.19, 0.45), p < 0.00001, I2 = 0%] {including cardiovascular mortality [RR = 0.16, 95% CI (0.03, 0.88), p = 0.03, I2 = 20%], the incidence of acute myocardial infarction [RR = 0.27, 95% CI (0.13, 0.57), p = 0.0006, I2 = 0%] and the occurrence of revascularization [RR = 0.28, 95% CI (0.15,0.54), p = 0.0001, I2 = 0%]}, all-cause mortality [RR = 0.25, 95% CI (0.06, 0.99), p = 0.05, I2 = 19%], recurrence of angina [RR = 0.25, 95% CI (0.11, 0.61), p = 0.002, I2 = 0%], the number of ST-segment depression [MD = −0.45, 95% CI (−0.69, −0.20), p = 0.0005, I2 = 0%], the summation of ST-segment depression [MD = −0.70, 95% CI (−1.08, −0.32), p = 0.0003, I2 = 70%] and the hypersensitive C-reactive protein level [MD = −2.86, 95% CI (−3.73, −1.99), p < 0.00001, I2 = 86%], increased the nitric oxide level [MD = 11.67, 95% CI (8.33, 15.02), p < 0.00001, I2 = 33%], improved the electrocardiogram change [RR = 1.23, 95% CI (1.16, 1.30), p < 0.00001, I2 = 0%] and the clinical efficacy in UA [RR = 1.26, 95% CI (1.21, 1.32), p < 0.00001, I2 = 24%], and relieved the symptoms of angina pectoris {including chest pain or tightness [RR = 1.13, 95% CI (0.97, 1.32), p = 0.12, I2 = 30%], palpitations [RR = 1.47, 95% CI (1.18, 1.84), p = 0.0007, I2 = 0%], shortness of breath [RR = 1.53, 95% CI (1.24, 1.88), p < 0.0001, I2 = 0%], and asthenia [RR = 1.69, 95% CI (0.83, 3.43), p = 0.15, I2 = 90%]}. The most common adverse effect was gastrointestinal symptoms which could be relieved and eliminated through dose reduction, medication time adjustment and symptomatic remedy. Collectively, TXLC was effective and considerably safe for UA. However, due to the unavoidable risk of bias, these results must be interpreted with caution and further verified by large-scale and high-quality RCTs.Systematic Review Registration:www.crd.york.ac.uk/PROSPERO/, identifier CRD42021232771.
    Keywords unstable angina pectoris ; Tongxinluo capsule ; Chinese medicine ; efficacy ; safety ; systematic review ; Therapeutics. Pharmacology ; RM1-950
    Subject code 610
    Language English
    Publishing date 2021-10-01T00:00:00Z
    Publisher Frontiers Media S.A.
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    Full text online

    More links

    Kategorien

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  4. Article: Rapid profiling and identification of puerarin metabolites in rat urine and plasma after oral administration by UHPLC-LTQ-Orbitrap mass spectrometer

    Shang, Zhanpeng / Jiayu Zhang / Qinqing Li / Qiqi Xin / Weihong Cong / Wenjing Zhao / Zhibin Wang

    Journal of chromatography. 2017 Nov. 15, v. 1068-1069

    2017  

    Abstract: Puerarin, a bioactive natural C-glycoside isoflavonoid isolated from Pueraria lobata (Willd.) Ohwi, possesses many potential health benefits. However, the in vivo metabolic fates of puerarin have not been comprehensively clarified yet. In this study, an ... ...

    Abstract Puerarin, a bioactive natural C-glycoside isoflavonoid isolated from Pueraria lobata (Willd.) Ohwi, possesses many potential health benefits. However, the in vivo metabolic fates of puerarin have not been comprehensively clarified yet. In this study, an efficient strategy based on UHPLC-LTQ-Orbitrap mass spectrometer in both positive and negative ion modes was developed to profile and characterize puerarin metabolites in rat urine and plasma. Meanwhile, post-acquisition data-mining methods including high-resolution extracted ion chromatogram (HREIC) and multiple mass defect filtering (MMDF) were utilized to screen potential puerarin metabolites from HR-ESI–MS1 stage. The mass fragmentation behaviors of five reference standards, including puerarin, daidzin, daidzein, genistin, and genistein, were comprehensively studied for construction of diagnostic product ions (DPIs), which could be employed to implement rapid identification of puerarin metabolites. Finally, a total of 66 metabolites (prototype compound included) were tentatively or positively identified based on standard substances, chromatographic retention times, accurate mass measurement, and corresponding ClogP values. Our results demonstrated that puerarin underwent multiple in vivo metabolic reactions including methylation, hydroxylation, dehydroxylation, hydrogenation, deglycosylation, glycosylation, sulfonation, glucuronidation, and their complicated reactions. In conclusion, the newly discovered puerarin metabolites significantly expanded the understanding on its pharmacological effects and built the foundation for further toxicity and safety studies.
    Keywords chromatography ; daidzein ; daidzin ; genistein ; genistin ; glycosylation ; hydrogenation ; hydroxylation ; ions ; metabolites ; methylation ; oral administration ; prototypes ; Pueraria montana var. lobata ; rats ; reference standards ; spectrometers ; toxicity ; urine
    Language English
    Dates of publication 2017-1115
    Size p. 180-192.
    Publishing place Elsevier B.V.
    Document type Article
    ISSN 1570-0232
    DOI 10.1016/j.jchromb.2017.10.038
    Database NAL-Catalogue (AGRICOLA)

    Full text online

    More links

    Kategorien

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  5. Article ; Online: Tetramethylpyrazine and Paeoniflorin Inhibit Oxidized LDL-Induced Angiogenesis in Human Umbilical Vein Endothelial Cells via VEGF and Notch Pathways

    Rong Yuan / Weili Shi / Qiqi Xin / Binrui Yang / Maggie Puiman Hoi / Simon Mingyuan Lee / Weihong Cong / Keji Chen

    Evidence-Based Complementary and Alternative Medicine, Vol

    2018  Volume 2018

    Abstract: Atherosclerotic plaque angiogenesis is key factor in plaque instability and vulnerability, and low concentrations of oxidized low density lipoprotein (ox-LDL) promote the in vitro angiogenesis of endothelial cells and play an important role in plaque ... ...

    Abstract Atherosclerotic plaque angiogenesis is key factor in plaque instability and vulnerability, and low concentrations of oxidized low density lipoprotein (ox-LDL) promote the in vitro angiogenesis of endothelial cells and play an important role in plaque angiogenesis. Ligusticum chuanxiong Hort. and Radix Paeoniae Rubra herb pair in Chinese medicine obtains the optimum therapeutic efficacy in atherosclerosis, and their major active ingredients tetramethylpyrazine (TMP) and paeoniflorin (PF) are reported to alleviate atherosclerosis. The aim of this study was to investigate the effects of TMP and PF on ox-LDL-induced angiogenesis and the underlying mechanism. Human umbilical vein endothelial cells (HUVECs) were incubated with ox-LDL and were then treated with TMP, PF, or a combination of TMP and PF. Cell proliferation, migration, tube formation, and the expression of angiogenesis-related proteins were measured. Synergism was evaluated using the combination index in cell proliferation. We found that TMP and PF attenuated the in vitro angiogenesis in ox-LDL-induced HUVECs. In addition, the combination of TMP and PF not only inhibited the ox-LDL-induced expression of CD31, vascular endothelial growth factor (VEGF), and VEGF receptor 2 (VEGFR2) but also decreased the ox-LDL-induced expression of Notch1, Jagged1, and Hes1. In summary, the combination of TMP and PF suppresses ox-LDL-induced angiogenesis in HUVECs by inhibiting both the VEGF/VEGFR2 and the Jagged1/Notch1 signaling pathways, which might contribute to the stability of plaques in atherosclerosis.
    Keywords Other systems of medicine ; RZ201-999
    Subject code 630
    Language English
    Publishing date 2018-01-01T00:00:00Z
    Publisher Hindawi Limited
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    Full text online

    More links

    Kategorien

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

To top