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Yang X, Jing T, Li Y, He Y, Zhang W, Wang B, Xiao Y, Wang W, Zhang J, Wei J, Lin R. Hydroxytyrosol Attenuates LPS-Induced Acute Lung Injury in Mice by Regulating Autophagy and Sirtuin Expression. Curr Mol Med 2018; 17:149-159. [PMID: 28429673 DOI: 10.2174/1566524017666170421151940] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2016] [Revised: 03/08/2017] [Accepted: 03/09/2017] [Indexed: 11/22/2022]
Abstract
BACKGROUND Recently, the effects of hydroxytyrosol on autophagy during acute lung injury (ALI) have drawn increasing attention. OBJECTIVE We explored the underlying molecular mechanisms by which hydroxytyrosol exerts its anti-inflammatory effects in a murine model of ALI by up-regulating autophagy. METHODS Male BALB/c mice, challenged with intranasal instillations of LPS, were treated with or without hydroxytyrosol (HT, 100 mg/kg, intragastrically) 1 h prior to LPS exposure. Twenty-four hours later, lung and bronchoalveolar lavage (BAL) fluid samples were obtained for the determination of lung wet to dry weight (W/D) ratios, protein leakage levels, and differential counts of inflammatory cells in BAL fluid. LPS-induced cytokine activity, inflammatory factor levels, sirtuin (SIRT1/3/6) expression, mitogenactivated protein kinase (MAPK) activation, and autophagy marker expression in ALImice were examined by western blotting and staining methods. Molecular docking between HT and SIRT and MAPK was studied with a Sybyl/Surflex module. RESULTS LPS-stimulated SIRT inhibition, MAPK phosphorylation, and autophagy suppression were all notably abolished by HT administration. HT treatment significantly attenuated pulmonary edema and inflammatory cell infiltration into lung tissues, accompanied by decreased lung W/D ratios, protein concentrations, and inflammatory cell levels in BAL fluid. LPS driven release of inflammatory mediators, including TNF-α, IL-1β, IL-6, IL-10, and MCP-1, was strongly regulated by HT. CONCLUSIONS The protective effect of HT on lung inflammation in ALI mice may be attributed to the promotion of autophagy, which is likely associated with the activation of the SIRT/MAPK signaling pathway. Importantly, this study provides new insight into the molecular mechanisms of HT and its therapeutic potential in the treatment of acute respiratory distress syndrome.
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Schelch K, Wagner C, Hager S, Pirker C, Siess K, Lang E, Lin R, Kirschner MB, Mohr T, Brcic L, Marian B, Holzmann K, Grasl-Kraupp B, Krupitza G, Laszlo V, Klikovits T, Dome B, Hegedus B, Garay T, Reid G, van Zandwijk N, Klepetko W, Berger W, Grusch M, Hoda MA. FGF2 and EGF induce epithelial–mesenchymal transition in malignant pleural mesothelioma cells via a MAPKinase/MMP1 signal. Carcinogenesis 2018; 39:534-545. [DOI: 10.1093/carcin/bgy018] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Accepted: 02/02/2018] [Indexed: 11/14/2022] Open
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Zhang HW, Liu HM, Lin R, Zhou L, Zhang J, Liu WT. [Clinical features of autoimmune hepatitis patients with poor response to treatment]. ZHONGHUA GAN ZANG BING ZA ZHI = ZHONGHUA GANZANGBING ZAZHI = CHINESE JOURNAL OF HEPATOLOGY 2017; 25:755-759. [PMID: 29108204 DOI: 10.3760/cma.j.issn.1007-3418.2017.10.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Objective: To investigate the clinical features of autoimmune hepatitis (AIH) patients with poor response to treatment. Methods: A total of 61 AIH patients were enrolled, among whom 49 (80.33%) achieved complete response (good response group) and 12 (19.67%) had incomplete response (poor response group). The two groups were compared in terms of clinical manifestations, laboratory markers, abdominal ultrasound findings, pathological features by liver biopsy, and response to treatment. Continuous data were expressed as mean ± standard deviation (x±s), and the t-test was used for comparison between groups; categorical data were expressed as rates or percentages, and the chi-square test was used for comparison between groups; a binary logistic regression analysis was used to determine influencing factors. Results: Most patients were female in both groups, and there were no significant differences in sex ratio, mean age of onset, and general status including extrahepatic autoimmune disease between the two groups. Compared with the good response group, the poor response group had significantly higher levels of alanine aminotransferase, aspartate aminotransferase, alkaline phosphatase (ALP), total bilirubin, immunoglobulin G, and immunoglobulin M (P < 0.05). Compared with the good response group, the poor response group had a significantly higher positive rate of autoimmune antibodies except anti-nuclear antibody (ANA), anti-smooth muscle antibody (SMA), antimitochondrial antibody (AMA), and AMA/M2 (75% vs 16.3%, P < 0.001), and there was a significant difference in the positive rate of gp210 antibody between the two groups (25% vs 0%, P < 0.01). There were significant differences between the poor response group and the good response group in the proportion of patients with liver cirrhosis (50.0 % vs 16.3%, P < 0.05) and splenomegaly (58.3% vs 22.4%, P < 0.05). The binary logistic regression analysis showed that a high serum level of ALP (odds ratio [OR] = 1.017, 95% confidence interval [CI] 1.001-1.033, P = 0.034), positive autoimmune antibodies except ANA, SMA, and AMA/M2 (OR = 70.842, 95% CI 2.132-2 354.371, P = 0.017), and liver cirrhosis (OR = 28.777, 95% CI 1.015-815.854, P = 0.049) were independent risk factors for initial treatment outcome. Conclusion: A high serum level of ALP, positive autoimmune antibodies except ANA, SMA, and AMA/M2, and liver cirrhosis are closely associated with poor response in AIH patients.
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Zhuo C, Ying M, Lin R, Wu X, Guan S, Yang C. Negative lymph node count is a significant prognostic factor in patient with stage IV gastric cancer after palliative gastrectomy. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx369.032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Shear N, Alhusayen R, Fernandez-Obregon A, Kimball A, Menter A, Wu J, Goyal K, Patel H, Lin R, Armstrong A. Observations from our evaluation of bodyweight changes after initiation of a biologic therapy in the Psoriasis Longitudinal Assessment and Registry (PSOLAR). J Eur Acad Dermatol Venereol 2017. [DOI: 10.1111/jdv.14414] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Lin R, Ahmed I, Bould D. Dexamethasone, blood glucose and CONSORT guidelines. Anaesthesia 2017; 72:791. [DOI: 10.1111/anae.13891] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Jiang Y, Lin R, Xu Y, Zhang S, Cui K, Zhu M, Li A, Chen C, Yang J, Yang W. Continuous blood purification treatment for endotoxin-induced acute respiratory distress syndrome. ACTA ACUST UNITED AC 2017; 50:e5367. [PMID: 28225865 PMCID: PMC5343563 DOI: 10.1590/1414-431x20165367] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2016] [Accepted: 11/06/2016] [Indexed: 01/11/2023]
Abstract
This study aimed to explore the effects of continuous blood purification (CBP) treatment in pigs affected with acute respiratory distress syndrome (ARDS). A total of 12 healthy male pigs, weighing 12±1.8 kg, were randomly and equally assigned to the control and experimental groups. The ARDS pig model was prepared by intravenous injections of endotoxin (20 µg/kg). The control group was given conventional supportive therapy, while the experimental group was given continuous veno-venous hemofiltration therapy. During the treatment process, the variations in dynamic lung compliance, oxygenation index, hemodynamics, and urine volume per hour at different times (Baseline, 0, 2, 4, and 6 h) were recorded. The levels of tumor necrosis factor (TNF-α), interleukin 6 (IL-6), and IL-10 in serum and bronchoalveolar lavage fluid (BALF) were measured using the enzyme-linked immunosorbent assay. The histomorphological changes of the lung, heart, and kidney were visualized using a light microscope. The nuclear factor κB p65 protein content of the heart, lung, and kidney tissues was also detected using western blot. The experimental group outperformed the control group in both respiratory and hemodynamic events. CBP treatment cleared TNF-α, IL-6, and IL-10 partially from serum and BALF. The pathological examination of the heart, lung, and kidney tissues revealed that the injury was less severe in the experimental group. CBP treatment can improve the organ functions of pigs affected with endotoxin-induced ARDS and protect these organs to some extent.
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Sarun K, Cheng YY, Kirschner M, Van Zandwijk N, Lin R, Reid G. OA02.05 Expression of miR-223 in Mesothelioma Xenografts Originates from Stromal Cells in the Tumor Microenvironment. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2016.11.235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Cheng YY, Wang Y, Sarun K, Kirschner M, Pellegrini L, Yang H, Carbone D, Mutti L, Van Zandwijk N, Lin R, Reid G. P3.03-008 Hypoxia-Induced Changes in microRNA Levels Contribute to Drug Resistance in a 3D Model of Malignant Pleural Mesothelioma. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2016.11.1907] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Schelch K, Wagner C, Lang E, Hoda M, Janovjak H, Lin R, Berger W, Klepetko W, Van Zandwijk N, Reid G, Grusch M. P3.03-002 Inducible Changes in Cell Morphology and Gene Expression Reflecting the Histological Subtypes of Mesothelioma. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2016.11.1901] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Schelch K, Kirschner M, Williams M, Lin R, Cheng YY, Grusch M, Berger W, Van Zandwijk N, Reid G. OA02.01 The microRNA-15/16 Family Regulates Tumor Cell Growth via Fibroblast Growth Factor Signals in Malignant Pleural Mesothelioma. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2016.11.232] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Lin R, Reid G, Mutti L, Ryan A, Nicholson S, Leonard N, Young V, Ryan R, Finn S, Cuffe S, Gray S. P1.05-021 circRNAs: Potential Novel Biomarkers for the Early Detection of Lung Cancer. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2016.11.805] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Johnson T, Schelch K, Cheng YY, Sarun K, Williams M, Lin R, Van Zandwijk N, Reid G. P3.03-007 miR-137 Acts as a Tumor Suppressor via the Down-Regulation of YB-1 in Malignant Pleural Mesothelioma. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2016.11.1906] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Zhang Z, Zhao Y, Wang X, Lin R, Zhang Y, Ma H, Guo Y, Xu L, Zhao B. The novel dipeptide Tyr-Ala (TA) significantly enhances the lifespan and healthspan of Caenorhabditis elegans. Food Funct 2016; 7:1975-84. [PMID: 26987062 DOI: 10.1039/c5fo01302j] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Food-derived bioactive peptides may have various physiological modulatory and regulatory functions and are now being studied extensively. Recently, the novel dipeptide Tyr-Ala was isolated from hydrolyzed maize protein. Tyr-Ala significantly prolonged the lifespan of wild-type Caenorhabditis elegans and extended the nematode healthspan and lifespan during heat/oxidative stress. Compared with its constituent amino acids, Tyr-Ala was more efficient in enhancing stress resistance. Further studies demonstrated that the significant longevity-extending effects of Tyr-Ala on Caenorhabditis elegans were attributed to its in vitro and in vivo free radical-scavenging effects, in addition to its ability to up-regulate stress resistance-related proteins, such as SOD (Superoxide Dismutase)-3 and HSP (Heat Shock Protein)-16.2. Real-time PCR results showed that the up-regulation of aging-associated genes, such as daf-16, sod-3, hsp-16.2 and skn-1, also contributed to the stress-resistance effect of Tyr-Ala. These results indicate that the novel dipeptide Tyr-Ala can protect against external stress and thus extend the lifespan and healthspan of Caenorhabditis elegans. Thereby, Tyr-Ala could be used as a potential medicine in anti-aging research.
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Ye LF, Fan Y, Zhang CM, Shu Q, Du LZ, Lin R. [Extracorporeal membrane oxygenation for rescuing 12 children with acute fulminant myocarditis]. ZHONGHUA ER KE ZA ZHI = CHINESE JOURNAL OF PEDIATRICS 2016; 54:843-846. [PMID: 27806793 DOI: 10.3760/cma.j.issn.0578-1310.2016.11.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To summarize clinical experience of using extracorporeal membrane oxygenation (ECMO) in rescuing children with acute fulminant myocarditis (AFM). Method: Data of 12 children with acute fulminate myocarditis (6 boys and 6 girls, median age 8.3 (0.6, 13.0) years, median weight 33.1 (6, 61) kg) who were rescued with ECMO in Children's Hospital, Zhejiang University from September 2009 to August 2015 were analyzed retrospectively. The analysis focused on the intervene timing of ECMO for the cardiogenic shock and hypoperfusion caused by heart failure and(or) lethal arrhythmia and the essentials of ECMO cardiopulmonary resuscitation(ECPR) for cardiac arrest in pediatric AFM were summarized. Result: The median ECMO duration was 110(22, 240) h. Ten cases survived and 2 were dead of the total of 12 patients. Six ECPR patients survived and 2 were dead in the total of 8 ECPR patients. The complication of 10 survivors were cannula site bleeding (3 cases), hypernatremia and intracranial hemorrhage (1 case), limping (1 case), hoarse voice (1 case), and cerebral injury (1 case). Conclusion: The key points of improving ECMO rescuing outcome for the AFM children are grasping the ECMO intervene timing and training skilled ECMO team. For ECPR patients, keeping effective chest compressions resuscitation is the key to achieve survival and improve the quality of life.
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Lin R, Wang Q, Qi B, Huang Y, Yang G. Effects of Neuromedin S on the Proliferation of Splenic Lymphocytes and the Cytokine Secretion by Pulmonary Alveolar Macrophages in Pigs in vitro. Pol J Vet Sci 2016; 19:485-494. [DOI: 10.1515/pjvs-2016-0061] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Neuromedin S (NMS), a 36-amino acid neuropeptide, has been found to be involved in the regulation of the endocrine activity. It has been also detected in immune tissues in mammals, what suggests that NMS may play an important role in the regulation of immune response. The aim of this study was to demonstrate the presence of NMS receptor 1 (NMU1R) and effect of NMS in pig splenic lymphocytes (SPLs) and pulmonary alveolar macrophages (PAMs). The presence of NMU1R in pig SPLs and PAMs was respectively confirmed by reverse transcription-polymerase chain reaction (RT-PCR), western blot analysis and immunocytochemical methods. Furthermore, SPL proliferation was analyzed using the 3-(4,5)-dimethyl-thiahiazo-(-2-yl)-3,5-di-phenytetrazoliumromide (MTT) method. Additionally, the secretion of interleukin (IL)-1β, IL-6 and tumor necrosis factor-α (TNF-α) in PAMs was all measured by enzyme-linked immunosorbent assay (ELISA) kits. In the present study, the results of RT-PCR and western blot analysis revealed that NMU1R mRNA and protein were both expressed in pig SPLs and PAMs, and the immunocytochemical investigations further revealed that the positive signal of NMU1R immunoreactivity was observed in plasma membranes of both SPLs and PAMs. In the in vitro study, we found that at concentrations of 0.001-1000 nM NMS alone or combined with lipopolysaccharide or phytohemagglutinin significantly increased SPL proliferation. Application of ELISA method showed that NMS could induce the secretion of the pro-inflammatory cytokines IL-1β, IL-6 and TNF-α in PAMs. These results suggest that NMS can act as a potently positive pro-inflammatory factor and immunomodulatory agent that affects the immune response of immune cells by combining with its receptor NMU1R.
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Elf S, Lin R, Xia S, Pan Y, Shan C, Wu S, Lonial S, Gaddh M, Arellano ML, Khoury HJ, Khuri FR, Lee BH, Boggon TJ, Fan J, Chen J. Targeting 6-phosphogluconate dehydrogenase in the oxidative PPP sensitizes leukemia cells to antimalarial agent dihydroartemisinin. Oncogene 2016; 36:254-262. [PMID: 27270429 PMCID: PMC5464402 DOI: 10.1038/onc.2016.196] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2015] [Revised: 04/19/2016] [Accepted: 04/24/2016] [Indexed: 12/13/2022]
Abstract
The oxidative pentose phosphate pathway (PPP) is crucial for cancer cell metabolism and tumor growth. We recently reported that targeting a key oxidative PPP enzyme, 6-phosphogluconate dehydrogenase (6PGD), using our novel small molecule 6PGD inhibitors Physcion and its derivative S3, shows anti-cancer effects. Notably, humans with genetic deficiency of either 6PGD or another oxidative PPP enzyme, glucose-6-phosphate dehydrogenase (G6PD), exhibit non-immune hemolytic anemia upon exposure to aspirin and various anti-malarial drugs. Inspired by these clinical observations, we examined the anti-cancer potential of combined treatment with 6PGD inhibitors and anti-malarial drugs. We found that stable knockdown of 6PGD sensitizes leukemia cells to anti-malarial agent dihydroartemisinin (DHA). Combined treatment with DHA and Physcion activates AMP-activated protein kinase, leading to synergistic inhibition of human leukemia cell viability. Moreover, our combined therapy synergistically attenuates tumor growth in xenograft nude mice injected with human K562 leukemia cells and cell viability of primary leukemia cells from human patients, but shows minimal toxicity to normal hematopoietic cells in mice as well as red blood cells and mononucleocytes from healthy human donors. Our findings reveal the potential for combined therapy using optimized doses of Physcion and DHA as a novel anti-leukemia treatment without inducing hemolysis.
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Charchar F, Kompa A, Lekawanvijit S, Lin R. MP053THE RENOPROTECTIVE ROLE OF MICRORNAS FROM FIBROSIS CAUSED BY UREMIC TOXINS AFTER MYOCARDIAL INFARCTION. Nephrol Dial Transplant 2016. [DOI: 10.1093/ndt/gfw182.23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Tao J, Liu W, Shang G, Zheng Y, Huang J, Lin R, Chen L. MiR-207/352 regulate lysosomal-associated membrane proteins and enzymes following ischemic stroke. Neuroscience 2015; 305:1-14. [PMID: 26232047 DOI: 10.1016/j.neuroscience.2015.07.064] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2015] [Revised: 07/21/2015] [Accepted: 07/24/2015] [Indexed: 11/16/2022]
Abstract
The role of microRNAs (miRNAs) in lysosome-mediated neuronal death and survival following ischemic stroke remains unknown. Herein, using miRNA and mRNA gene expression profiling microarrays, we identified the differentially expressed 24 miRNAs and 494 genes in the cortical peri-infarct area, respectively. Integrating the miRNA targets and mRNA expression profiles, we found 47 genes of miRNA targets, including lysosomal-associated membrane protein 2 (LAMP2), Hexb, Bcl2, etc. MiR-207 and miR-352 were mainly downregulated after ischemic stroke, followed by a slight return to baseline during post-middle cerebral artery occlusion (MCAO) 1d to 7d. Furthermore, the luciferase reporter assay demonstrated that LAMP2 and Hexb were the direct targets of miR-207 and miR-352, respectively. After lateral ventricle injection with miR-207 agonist mimics, the neurological deficit scores and infarct volumes were attenuated, and the structure of mitochondria ridges was improved. In addition, miR-207 mimics could reduce the number of cellular lysosome and autophagosome, whereas increase the number of autophagic vacuoles, indicating miR-207 might affect the latter part of lysosomal-autophagy pathway and mitochondria-induced apoptosis. These results suggested that miR-207 and miR-352 were involved in lysosomal pathway for mediating ischemic injury and spontaneous recovery. MiR-207 mimics as potential target drugs could protect against autophagic cell death after ischemic stroke.
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Nayak A, Hao Z, Sadek R, Dobbins R, Marshall L, Vahanian N, Ramsey J, Kennedy E, Mautino M, Link C, Lin R, Royer-Joo S, Morrissey K, Mahrus S, McCall B, Pirzkall A, Munn D, Janik J, Khleif S. 346 Phase 1a study of the safety, pharmacokinetics, and pharmacodynamics of GDC-0919 in patients with recurrent/advanced solid tumors. Eur J Cancer 2015. [DOI: 10.1016/s0959-8049(16)30209-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Lin R, Taylor BV, Charlesworth J, van der Mei I, Blizzard L, Stewart N, Ponsonby AL, Dwyer T, Pittas F, Simpson S. Modulating effects of WT1 on interferon-β-vitamin D association in MS. Acta Neurol Scand 2015; 131:231-9. [PMID: 25312909 DOI: 10.1111/ane.12315] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/29/2014] [Indexed: 01/08/2023]
Abstract
OBJECTIVE To investigate whether those genes involved in the vitamin D pathway modulate the relationship between 25-hydroxyvitamin D (25(OH)D) and IFN-β, the relationship between IFN-β and sun in predicting 25(OH)D, and the interaction between IFN-β and 25(OH)D in modulating relapse risk in patients with MS. METHODS Prospective cohort study of 169 participants with MS and genotype data followed 2002-2005. Gene-IFN-β and gene-IFN-β-sun interactions predicting 25(OH)D evaluated by multilevel mixed-effects linear regression. Gene-IFN-β interactions with 25(OH)D in modulating in relapse risk assessed using survival analysis. RESULTS The cohort was 71.6% female and of mean age 47.8. Two-independent intronic genotyped SNPs (rs10767935 and rs5030244) in WT1 significantly modified the IFN-β-25(OH)D association after adjustment (P(interaction) = 0.001, 0.0002; P(adj) = 0.003, 0.006, respectively). There was a marked difference in the interaction between self-reported sun exposure and IFN-β in predicting 25(OH)D by level of rs10767935, although this did not reach statistical significance. No SNPs modified the interaction between IFN-β and 25(OH)D in predicting relapse. CONCLUSIONS We have demonstrated that two-independent SNPs (rs10767935 and rs5030244) in WT1 modified the IFN-β-25(OH)D association in patients with MS. Some evidence was shown for a difference in the sun-IFN-β-25(OH)D association by level of rs10767935. These findings indicate that WT1 variants may play a role in altering the effects of IFN-β on vitamin D in MS.
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Lin R, Zhang L, Zhang P, Zhou L, Liu T, Li Y, Zhang W, Wang W, Zhang J. Influence of CYP2C19 loss-of-function variants on the metabolism of clopidogrel in patients from north-western China. J Clin Pharm Ther 2015; 40:308-14. [PMID: 25810245 DOI: 10.1111/jcpt.12254] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2014] [Accepted: 02/03/2015] [Indexed: 12/20/2022]
Abstract
WHAT IS KNOWN AND OBJECTIVE Variation of the cytochrome P450 2C19 gene coding for the CYP2C19 enzyme has been reported to be associated with clopidogrel response variability. The activity of the CYP2C19 enzyme is genetically influenced by polymorphisms of its gene. METHODS This study was conducted to assess the impact of CYP2C19 polymorphism on the clopidogrel metabolism, indirectly selecting the plasma concentration ratios of clopidogrel to its inactive metabolite SR26334 as an evaluation index. Genotyping and plasma concentration results of 366 patients on clopidogrel maintenance therapy (75 mg daily dose) were analysed in this study. CYP2C19 genotypes were determined by PCR-restriction fragment length polymorphism method. RESULTS AND DISCUSSION As for CYP2C19, patients were classified into three metabolism genotype groups: EM (44·3%), IM (43·4%) and PM (12·3%). The mean plasma concentration ratio of clopidogrel to its inactive metabolite SR26334 for the entire sample was 0·507. The plasma concentration ratios of the 3 metabolism groups were significantly different (P < 0·001). The lowest plasma concentration ratio value was observed for PM patients. WHAT IS NEW AND CONCLUSION Polymorphism of CYP2C19 was significantly associated with plasma concentration ratios of clopidogrel to its inactive metabolite SR26334. Clopidogrel metabolism was regulated by CYP2C19. The *2 and *3 allele carriage were independently associated with the antiplatelet effect of chronic clopidogrel therapy.
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Lin R, Ouyang J, Huang P, Lee H. P141 3-D temporal resolution characteristics of breast lesions from breast MRI. Breast 2015. [DOI: 10.1016/s0960-9776(15)70183-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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Wang Y, Zhao N, Qiu J, He X, Zhou M, Cui H, Lv L, Lin X, Zhang C, Zhang H, Xu R, Zhu D, Dang Y, Han X, Zhang H, Bai H, Chen Y, Tang Z, Lin R, Yao T, Su J, Xu X, Liu X, Wang W, Ma B, Liu S, Qiu W, Huang H, Liang J, Wang S, Ehrenkranz RA, Kim C, Liu Q, Zhang Y. Folic acid supplementation and dietary folate intake, and risk of preeclampsia. Eur J Clin Nutr 2015; 69:1145-1150. [PMID: 25626412 DOI: 10.1038/ejcn.2014.295] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2014] [Revised: 11/18/2014] [Accepted: 12/10/2014] [Indexed: 11/09/2022]
Abstract
BACKGROUND/OBJECTIVES Folic acid supplementation has been suggested to reduce the risk of preeclampsia. However, results from few epidemiologic studies have been inconclusive. We investigated the hypothesis that folic acid supplementation and dietary folate intake before conception and during pregnancy reduce the risk of preeclampsia. SUBJECTS/METHODS A birth cohort study was conducted in 2010-2012 at the Gansu Provincial Maternity & Child Care Hospital in Lanzhou, China. A total of 10,041 pregnant women without chronic hypertension or gestational hypertension were enrolled. RESULTS Compared with nonusers, folic acid supplement users had a reduced risk of preeclampsia (OR=0.61, 95% CI: 0.43-0.87). A significant dose-response of duration of use was observed among women who used folic acid supplemention during pregnancy only (P-trend=0.007). The reduced risk associated with folic acid supplement was similar for mild or severe preeclampsia and for early- or late-onset preeclampsia, although the statistical significant associations were only observed for mild (OR=0.50, 95% CI: 0.30-0.81) and late-onset (OR=0.60, 95% CI: 0.42-0.86) preeclampsia. The reduced risk associated with dietary folate intake during pregnancy was only seen for severe preeclampsia (OR=0.52, 95% CI: 0.31-0.87, for the highest quartile of dietary folate intake compared with the lowest). CONCLUSIONS Our study results suggest that folic acid supplementation and higher dietary folate intake during pregnancy reduce the risk of preeclampsia. Future studies are needed to confirm the associations.
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Ooi J, Bernardo B, Lin R, McMullen J. Identification of novel cardioprotective miRNAs and mRNAs regulated by miR-34. Heart Lung Circ 2015. [DOI: 10.1016/j.hlc.2015.06.158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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