51
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Du X, Chu H, Ye P, He B, Xu H, Jiang S, Lin M, Lin R, Liu J, Wang B, Feng M, Yu Y, Chen X. P1007Combined therapy with left atrial appendage closure plus catheter ablation in a single procedure for patients with nonvalvular atrial fibrillation: chinese multi-center experience. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy564.p1007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- X Du
- Ningbo First Hospital, Arrhythmia Center, Ningbo, China People's Republic of
| | - H Chu
- Ningbo First Hospital, Arrhythmia Center, Ningbo, China People's Republic of
| | - P Ye
- The Central Hospital of Wuhan, Wuhan, China People's Republic of
| | - B He
- Ningbo First Hospital, Arrhythmia Center, Ningbo, China People's Republic of
| | - H Xu
- The Second Affiliated Hospital of Hainan Medical University, Haikou, China People's Republic of
| | - S Jiang
- The Hospital of Traditional Chinese Medicine of the Xinjiang Uygur Autonomous Region, Xinjiang Medic, Urumuqi, China People's Republic of
| | - M Lin
- Wenzhou Central Hospital, Wenzhou, China People's Republic of
| | - R Lin
- Quanzhou First Hospital, Fujian Medical University, Quanzhou, China People's Republic of
| | - J Liu
- Ningbo First Hospital, Arrhythmia Center, Ningbo, China People's Republic of
| | - B Wang
- Ningbo First Hospital, Arrhythmia Center, Ningbo, China People's Republic of
| | - M Feng
- Ningbo First Hospital, Arrhythmia Center, Ningbo, China People's Republic of
| | - Y Yu
- Ningbo First Hospital, Arrhythmia Center, Ningbo, China People's Republic of
| | - X Chen
- Ningbo First Hospital, Arrhythmia Center, Ningbo, China People's Republic of
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52
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Kimball A, Augustin M, Gordon K, Krueger G, Pariser D, Fakharzadeh S, Goyal K, Calabro S, Lee S, Lin R, Li N, Srivastava B, Guenther L. Correlation of psoriasis activity with socioeconomic status: cross-sectional analysis of patients enrolled in the Psoriasis Longitudinal Assessment and Registry (PSOLAR). Br J Dermatol 2018; 179:984-986. [DOI: 10.1111/bjd.16737] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Affiliation(s)
- A.B. Kimball
- Harvard Medical School and Beth Israel Deaconess Medical Center; Boston MA U.S.A
| | - M. Augustin
- University Medical Center Hamburg-Eppendorf; Hamburg Germany
| | - K.B. Gordon
- Medical College of Wisconsin; Milwaukee WI U.S.A
| | | | - D. Pariser
- Eastern Virginia Medical School and Virginia Clinical Research, Inc.; Norfolk VA U.S.A
| | | | - K. Goyal
- Janssen Scientific Affairs, LLC; Horsham PA U.S.A
| | - S. Calabro
- Janssen Scientific Affairs, LLC; Horsham PA U.S.A
| | - S. Lee
- Janssen Scientific Affairs, LLC; Horsham PA U.S.A
| | - R. Lin
- PRA Health Sciences; Blue Bell PA U.S.A
| | - N. Li
- Janssen Research & Development; LLC; Horsham PA U.S.A
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53
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Gong YQ, Ai XF, Wang W, Hong XY, Liu JP, Zhou CB, Zhao Z, Lin R, He J, Chen J, Miao N, Zhao YD, Huang GD. [The application of extracorporeal membrane oxygenation in children in China]. Zhonghua Yi Xue Za Zhi 2018; 98:2110-2114. [PMID: 30032510 DOI: 10.3760/cma.j.issn.0376-2491.2018.26.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the application of extracorporeal membrane oxygenation (ECMO) in pediatrics in China as well as the outcomes. Methods: Data was conducted by questionnaire to investigate the use of ECMO in children under the age of 18 in China by June 30, 2017. All patients were divided into two age groups: pediatric patients (29 d-18 y) and neonates (1-28 d); Also by the causes of ECMO treating including cardiac, respiratory and extracorporeal cardiopulmonary resuscitation (ECPR). The form included the numbers of ECMO cases, weaned and discharged cases, according to the different ages and causes. In addition, the departments that routinely participate in ECMO management were acquired. Results: Totally 43 tertiary hospitals were enrolled, of which 30 have implemented ECMO for the children patients (comprising pediatrics and neonates), including 14 general hospitals, 5 cardiothoracic specialty hospitals and 11 children's or women and children's hospitals. ECMO for pediatrics and neonates was firstly carried out at mainland China in 2004. To the deadline of investigation, 800 patients were supported with ECMO, among which 658 were pediatrics, much more than 142 of neonates. As to pediatrics, 453 were supported with ECMO for cardiac indications with 287 (63.4%) weaned off and 215 (47.5%) survived to discharge; for respiratory causes, 79 cases were registered with 47 (59.5%) weaned off and 36 (45.6%) discharged; for ECPR, 126 were enrolled with 62 (49.2%) successfully weaned off and 48 (38.1%) discharged. In contrast, neonatal patients undergoing cardiac ECMO contained 79 cases, with 39 (49.4%) weaned off and 26 (32.9%) discharged; due to respiratory causes, 40 neonates were included, with 26 (65.0%) weaned off and 21 (52.5%) discharged; 23 neonatal patients consisted of ECPR cause and 10 (43.5%) of them successfully weaned off, but only 6 (26.1%) finally survived. Among the 30 hospitals conducted ECMO for pediatrics and neonates, the average number of departments for ECMO management is 4.03±1.87. Conclusions: Although ECMO used for children in mainland China is relatively late, a certain number of cases have been accumulated, and there is still a gap compared with the international standard. Meanwhile, each hospital has preliminarily built up its own ECMO team.
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Affiliation(s)
- Y Q Gong
- Cardiothoracic Surgery, Shanghai Children's Medical Center, Shanghai 200127, China
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Wilson EC, Turner C, Arayasirikul S, Woods T, Nguyen T, Lin R, Franza K, Tryon J, Nemoto T, Iwamoto M. Housing and income effects on HIV-related health outcomes in the San Francisco Bay Area - findings from the SPNS transwomen of color initiative. AIDS Care 2018; 30:1356-1359. [PMID: 29920118 DOI: 10.1080/09540121.2018.1489102] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
Transwomen of color are disproportionately impacted by HIV and may have worse health outcomes than other populations. This analysis was conducted to examine structural factors associated with poor health outcomes among transwomen of color living with HIV in the San Francisco Bay Area (N = 159). Univariate and multivariable analyses were conducted to determine if structural factors were associated with poor HIV-related health outcomes. A majority of participants were Black or African American (110/159, 69.2%), 32 (20.1%) identified their primary race/ethnicity as Hispanic or Latino/a or Spanish, and 17 (10.7%) identified as another race/ethnicity. Transwomen of color in our sample faced extreme structural barriers, including residential transience, extreme low income, high prevalence of running out of money in the last six months, high rates of food insecurity, high prevalence of income via entitlement programs, engagement in sex work and other illicit activities for income. Unstable housing was the structural factor most consistently associated with poor health outcomes along the HIV care continuum and may explain engagement in other sources of income generation. Interventions are needed that go beyond the individual and health care-level to address needs for housing and economic opportunities to improve HIV care outcomes among transwomen of color living with HIV in the San Francisco Bay Area.
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Affiliation(s)
- E C Wilson
- a Center for Public Health Research, San Francisco Department of Public Health , San Francisco , California , USA
| | - C Turner
- a Center for Public Health Research, San Francisco Department of Public Health , San Francisco , California , USA
| | - S Arayasirikul
- a Center for Public Health Research, San Francisco Department of Public Health , San Francisco , California , USA
| | - T Woods
- b Brandy Martell Project, TransVision program, Tri City Health Center
| | - T Nguyen
- b Brandy Martell Project, TransVision program, Tri City Health Center
| | - R Lin
- a Center for Public Health Research, San Francisco Department of Public Health , San Francisco , California , USA
| | - K Franza
- c TransAccess Program, Asian and Pacific Islander Wellness Center and San Francisco Department of Public Health
| | - J Tryon
- c TransAccess Program, Asian and Pacific Islander Wellness Center and San Francisco Department of Public Health
| | - T Nemoto
- d Butterfly Nest, Public Health International
| | - M Iwamoto
- d Butterfly Nest, Public Health International
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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] [What about the content of this article? (0)] [Affiliation(s)] [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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Affiliation(s)
- X Yang
- Department of Pharmacology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an 710061, Shaanxi. China
| | - T Jing
- Department of Pharmacology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an 710061, Shaanxi. China
| | - Y Li
- Taizhou Polytechnic College, Taizhou 225300, Jiangsu. China
| | - Y He
- Department of Pharmacology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an 710061, Shaanxi. China
| | - W Zhang
- Department of Pharmacy, Yangquan Coalmine Group General Hospital, Yangquan 045000, Shanxi. China
| | - B Wang
- Department of Pharmacology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an 710061, Shaanxi. China
| | - Y Xiao
- Department of Pharmacology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an 710061, Shaanxi. China
| | - W Wang
- Laboratory Animal Center, Xi'an Jiaotong University, Xi'an 710061, Shaanxi. China
| | - J Zhang
- School of Pharmacology, Xi'an Jiaotong University, Xi'an 710061, Shaanxi. China
| | - J Wei
- Liaoning Province Academy of Analytic Science, Shenyang 110015, Liaoning. China
| | - R Lin
- Department of Pharmacology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an 710061, Shaanxi. China
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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 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] [What about the content of this article? (0)] [Affiliation(s)] [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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Affiliation(s)
- H W Zhang
- Department of gastroenterology, The General Hospital of Tianjin Medical University Tianjin 300052, China
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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] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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58
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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] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- N.H. Shear
- Sunnybrook Health Sciences Centre; University of Toronto; Toronto ON Canada
| | - R. Alhusayen
- Sunnybrook Health Sciences Centre; University of Toronto; Toronto ON Canada
| | | | - A.B. Kimball
- Harvard Medical School and Beth Israel Deaconess Medical Center; Boston MA USA
| | - A. Menter
- Baylor Research Institute; Dallas TX USA
| | - J.J. Wu
- Kaiser Permanente Los Angeles Medical Center; Los Angeles CA USA
| | - K. Goyal
- Janssen Scientific Affairs, LLC; Horsham PA USA
| | - H. Patel
- Janssen Scientific Affairs, LLC; Horsham PA USA
| | - R. Lin
- Janssen Research & Development, LLC; Springhouse PA USA
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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] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- R. Lin
- King's College Hospital; London UK
| | - I. Ahmed
- University Teaching Hospital; Lusaka Zambia
| | - D. Bould
- Children's Hospital of Eastern Ontario; Ontario Canada
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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] [What about the content of this article? (0)] [Affiliation(s)] [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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Affiliation(s)
- Y Jiang
- Intensive Care Unit, Taizhou Hospital of Zhejiang Province, Wenzhou Medical University, Taizhou, China
| | - R Lin
- Intensive Care Unit, Taizhou Hospital of Zhejiang Province, Wenzhou Medical University, Taizhou, China
| | - Y Xu
- Intensive Care Unit, Taizhou Hospital of Zhejiang Province, Wenzhou Medical University, Taizhou, China
| | - S Zhang
- Intensive Care Unit, Taizhou Hospital of Zhejiang Province, Wenzhou Medical University, Taizhou, China
| | - K Cui
- Intensive Care Unit, Taizhou Hospital of Zhejiang Province, Wenzhou Medical University, Taizhou, China
| | - M Zhu
- Medical Research Center, Taizhou Hospital of Zhejiang Province, Wenzhou Medical University, Taizhou, China
| | - A Li
- Intensive Care Unit, Taizhou Hospital of Zhejiang Province, Wenzhou Medical University, Taizhou, China
| | - C Chen
- Intensive Care Unit, Taizhou Hospital of Zhejiang Province, Wenzhou Medical University, Taizhou, China
| | - J Yang
- Intensive Care Unit, Taizhou Hospital of Zhejiang Province, Wenzhou Medical University, Taizhou, China
| | - W Yang
- Intensive Care Unit, Taizhou Hospital of Zhejiang Province, Wenzhou Medical University, Taizhou, China
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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] [What about the content of this article? (0)] [Affiliation(s)] [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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Affiliation(s)
- Z Zhang
- Key laboratory for Molecular Enzymology and Engineering, the Ministry of Education, National Engineering Laboratory for AIDS Vaccine, School of Life Sciences, Jilin University, Changchun 130012, China.
| | - Y Zhao
- Department of Food Sciences and Technology, Harbin Institute of Technology at Weihai, 264209, China
| | - X Wang
- Jilin Province People's Hospital, Changchun 130021, China
| | - R Lin
- Key laboratory for Molecular Enzymology and Engineering, the Ministry of Education, National Engineering Laboratory for AIDS Vaccine, School of Life Sciences, Jilin University, Changchun 130012, China.
| | - Y Zhang
- Key laboratory for Molecular Enzymology and Engineering, the Ministry of Education, National Engineering Laboratory for AIDS Vaccine, School of Life Sciences, Jilin University, Changchun 130012, China.
| | - H Ma
- Key laboratory for Molecular Enzymology and Engineering, the Ministry of Education, National Engineering Laboratory for AIDS Vaccine, School of Life Sciences, Jilin University, Changchun 130012, China.
| | - Y Guo
- Key laboratory for Molecular Enzymology and Engineering, the Ministry of Education, National Engineering Laboratory for AIDS Vaccine, School of Life Sciences, Jilin University, Changchun 130012, China.
| | - L Xu
- Key laboratory for Molecular Enzymology and Engineering, the Ministry of Education, National Engineering Laboratory for AIDS Vaccine, School of Life Sciences, Jilin University, Changchun 130012, China.
| | - B Zhao
- State Key Laboratory of Brain and Cognitive Science, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China.
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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 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] [What about the content of this article? (0)] [Affiliation(s)] [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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Affiliation(s)
- L F Ye
- Cardiopulmonary Bypass Department, Children's Hospital, Zhejiang University, Hangzhou 310000, China
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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] [What about the content of this article? (0)] [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] [What about the content of this article? (0)] [Affiliation(s)] [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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Affiliation(s)
- S Elf
- Department of Hematology and Medical Oncology, Winship Cancer Institute of Emory, Emory University School of Medicine, Atlanta, GA, USA
| | - R Lin
- Department of Hematology and Medical Oncology, Winship Cancer Institute of Emory, Emory University School of Medicine, Atlanta, GA, USA
| | - S Xia
- Department of Hematology and Medical Oncology, Winship Cancer Institute of Emory, Emory University School of Medicine, Atlanta, GA, USA
| | - Y Pan
- Department of Hematology and Medical Oncology, Winship Cancer Institute of Emory, Emory University School of Medicine, Atlanta, GA, USA
| | - C Shan
- Department of Hematology and Medical Oncology, Winship Cancer Institute of Emory, Emory University School of Medicine, Atlanta, GA, USA
| | - S Wu
- Department of Chemistry, Emory University School of Medicine, Atlanta, GA, USA
| | - S Lonial
- Department of Hematology and Medical Oncology, Winship Cancer Institute of Emory, Emory University School of Medicine, Atlanta, GA, USA
| | - M Gaddh
- Department of Hematology and Medical Oncology, Winship Cancer Institute of Emory, Emory University School of Medicine, Atlanta, GA, USA
| | - M L Arellano
- Department of Hematology and Medical Oncology, Winship Cancer Institute of Emory, Emory University School of Medicine, Atlanta, GA, USA
| | - H J Khoury
- Department of Hematology and Medical Oncology, Winship Cancer Institute of Emory, Emory University School of Medicine, Atlanta, GA, USA
| | - F R Khuri
- Department of Hematology and Medical Oncology, Winship Cancer Institute of Emory, Emory University School of Medicine, Atlanta, GA, USA
| | - B H Lee
- Novartis Institutes for BioMedical Research, Cambridge, MA, USA
| | - T J Boggon
- Department of Pharmacology, Yale University School of Medicine, New Haven, CT, USA
| | - J Fan
- Department of Hematology and Medical Oncology, Winship Cancer Institute of Emory, Emory University School of Medicine, Atlanta, GA, USA
| | - J Chen
- Department of Hematology and Medical Oncology, Winship Cancer Institute of Emory, Emory University School of Medicine, Atlanta, GA, USA
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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] [What about the content of this article? (0)] [Affiliation(s)] [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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Affiliation(s)
- J Tao
- College of Rehabilitation Medicine & TCM Rehabilitation Research Center Of SATCM, Fujian University of Traditional Chinese Medicine, Fuzhou 350122, PR China
| | - W Liu
- College of Rehabilitation Medicine & TCM Rehabilitation Research Center Of SATCM, Fujian University of Traditional Chinese Medicine, Fuzhou 350122, PR China
| | - G Shang
- Fujian Rehabilitation Tech Co-innovation Center (2011 Project), Fujian University of Traditional Chinese Medicine, Fuzhou 350122, PR China
| | - Y Zheng
- Fujian Rehabilitation Tech Co-innovation Center (2011 Project), Fujian University of Traditional Chinese Medicine, Fuzhou 350122, PR China
| | - J Huang
- Fujian Rehabilitation Engineering Research Center & Fujian Key Lab of Motor Function Rehabilitation, Fujian University of Traditional Chinese Medicine, Fuzhou 350122, PR China
| | - R Lin
- Fujian Rehabilitation Tech Co-innovation Center (2011 Project), Fujian University of Traditional Chinese Medicine, Fuzhou 350122, PR China
| | - L Chen
- College of Rehabilitation Medicine & TCM Rehabilitation Research Center Of SATCM, Fujian University of Traditional Chinese Medicine, Fuzhou 350122, PR China.
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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] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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67
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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] [What about the content of this article? (0)] [Affiliation(s)] [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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Affiliation(s)
- R. Lin
- Menzies Research Institute Tasmania; University of Tasmania; Hobart Tas. Australia
- Guangxi Center for Disease Prevention and Control; Nanning China
| | - B. V. Taylor
- Menzies Research Institute Tasmania; University of Tasmania; Hobart Tas. Australia
| | - J. Charlesworth
- Menzies Research Institute Tasmania; University of Tasmania; Hobart Tas. Australia
| | - I. van der Mei
- Menzies Research Institute Tasmania; University of Tasmania; Hobart Tas. Australia
| | - L. Blizzard
- Menzies Research Institute Tasmania; University of Tasmania; Hobart Tas. Australia
| | - N. Stewart
- School of Pharmacy; University of Tasmania; Hobart Tas. Australia
- School of Medicine; University of Tasmania; Hobart Tas. Australia
| | - A.-L. Ponsonby
- Murdoch Children's Research Institute; Royal Children's Hospital; Hobart Tas. Australia
| | - T. Dwyer
- Murdoch Children's Research Institute; Royal Children's Hospital; Hobart Tas. Australia
| | - F. Pittas
- School of Medicine; University of Tasmania; Hobart Tas. Australia
| | - S. Simpson
- Menzies Research Institute Tasmania; University of Tasmania; Hobart Tas. Australia
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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] [What about the content of this article? (0)] [Affiliation(s)] [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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Affiliation(s)
- R Lin
- School of Pharmacology, Health Science Center, Xi'an Jiaotong University, Xi'an, China
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69
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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] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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70
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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] [What about the content of this article? (0)] [Affiliation(s)] [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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Affiliation(s)
- Y Wang
- Gansu Provincial Maternity and Child Care Hospital, Lanzhou, Gansu, China
| | - N Zhao
- Department of Environmental Health Sciences, School of Public Health, Yale University, New Haven, CT, USA
| | - J Qiu
- Gansu Provincial Maternity and Child Care Hospital, Lanzhou, Gansu, China
| | - X He
- Gansu Provincial Maternity and Child Care Hospital, Lanzhou, Gansu, China
| | - M Zhou
- Gansu Provincial Maternity and Child Care Hospital, Lanzhou, Gansu, China
| | - H Cui
- Gansu Provincial Maternity and Child Care Hospital, Lanzhou, Gansu, China
| | - L Lv
- Gansu Provincial Maternity and Child Care Hospital, Lanzhou, Gansu, China
| | - X Lin
- Gansu Provincial Maternity and Child Care Hospital, Lanzhou, Gansu, China
| | - C Zhang
- Gansu Provincial Maternity and Child Care Hospital, Lanzhou, Gansu, China
| | - H Zhang
- Gansu Provincial Maternity and Child Care Hospital, Lanzhou, Gansu, China
| | - R Xu
- Gansu Provincial Maternity and Child Care Hospital, Lanzhou, Gansu, China
| | - D Zhu
- Gansu Provincial Maternity and Child Care Hospital, Lanzhou, Gansu, China
| | - Y Dang
- Gansu Provincial Maternity and Child Care Hospital, Lanzhou, Gansu, China
| | - X Han
- Gansu Provincial Maternity and Child Care Hospital, Lanzhou, Gansu, China
| | - H Zhang
- Gansu Provincial Maternity and Child Care Hospital, Lanzhou, Gansu, China
| | - H Bai
- Gansu Provincial Maternity and Child Care Hospital, Lanzhou, Gansu, China
| | - Y Chen
- Gansu Provincial Maternity and Child Care Hospital, Lanzhou, Gansu, China
| | - Z Tang
- Gansu Provincial Maternity and Child Care Hospital, Lanzhou, Gansu, China
| | - R Lin
- Gansu Provincial Maternity and Child Care Hospital, Lanzhou, Gansu, China
| | - T Yao
- Gansu Provincial Maternity and Child Care Hospital, Lanzhou, Gansu, China
| | - J Su
- Gansu Provincial Maternity and Child Care Hospital, Lanzhou, Gansu, China
| | - X Xu
- Gansu Provincial Maternity and Child Care Hospital, Lanzhou, Gansu, China
| | - X Liu
- Gansu Provincial Maternity and Child Care Hospital, Lanzhou, Gansu, China
| | - W Wang
- Gansu Provincial Maternity and Child Care Hospital, Lanzhou, Gansu, China
| | - B Ma
- Gansu Provincial Maternity and Child Care Hospital, Lanzhou, Gansu, China
| | - S Liu
- Gansu Provincial Maternity and Child Care Hospital, Lanzhou, Gansu, China
| | - W Qiu
- Gansu Provincial Maternity and Child Care Hospital, Lanzhou, Gansu, China
| | - H Huang
- Department of Environmental Health Sciences, School of Public Health, Yale University, New Haven, CT, USA
| | - J Liang
- Department of Environmental Health Sciences, School of Public Health, Yale University, New Haven, CT, USA
| | - S Wang
- Department of Epidemiology, School of Public Health, Shanxi Medical University, Taiyuan, Shanxi, China
| | - R A Ehrenkranz
- Department of Pediatrics, School of Medicine, Yale University, New Haven, CT, USA
| | - C Kim
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Department of Health and Human Sciences, Bethesda, MD, USA
| | - Q Liu
- Gansu Provincial Maternity and Child Care Hospital, Lanzhou, Gansu, China
| | - Y Zhang
- Department of Environmental Health Sciences, School of Public Health, Yale University, New Haven, CT, USA
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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] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Cheetham A, Zhang P, Lin YA, Lin R, Cui H. Synthesis and Self-Assembly of a Mikto-Arm Star Dual Drug Amphiphile Containing both Paclitaxel and Camptothecin. J Mater Chem B 2014; 2:7316-7326. [PMID: 25667746 PMCID: PMC4319564 DOI: 10.1039/c4tb01084a] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Self-assembly of anticancer therapeutics into discrete nanostructures provides an innovative way to develop a self-delivering nanomedicine with a high, quantitative drug loading. We report here the synthesis and assembly of a mikto-arm star dual drug amphiphile (DA) containing both a bulky paclitaxel (PTX) and a planar camptothecin (CPT). The two anti-cancer drugs of interest were stochastically conjugated to a β-sheet forming peptide (Sup35) and under physiologically-relevant conditions the dual DA could spontaneously associate into supramolecular filaments with a fixed 41% total drug loading (29% PTX and 12% CPT). Transmission electron microscopy imaging and circular dichroism spectroscopy studies reveal that the bulkiness of the PTX, as well as the π-π interaction preference between the CPT units, has a significant impact on the assembly kinetics, molecular level packing, and nanostructure morphology and stability. We found that the DA containing two PTX units assembled into non-filamentous micelle-like structures, in contrast to the filamentous structures formed by the hetero dual DA and the DA containing two CPTs. The hetero dual DA was found to effectively release the two anticancer agents, exhibiting superior cytotoxicity against PTX-resistant cervical cancer cells. The presented work offers a potential method to generate well-defined entwined filamentous nanostructures and provides the basis for a future combination therapy platform.
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Affiliation(s)
- A.G. Cheetham
- Department of Chemical and Biomolecular Engineering, The Johns Hopkins University, Baltimore, Maryland 21218, USA
- Institute for NanoBioTechnology, The Johns Hopkins University, Baltimore, Maryland 21218, USA
| | - P. Zhang
- Department of Chemical and Biomolecular Engineering, The Johns Hopkins University, Baltimore, Maryland 21218, USA
| | - Y.-A. Lin
- Department of Chemical and Biomolecular Engineering, The Johns Hopkins University, Baltimore, Maryland 21218, USA
- Institute for NanoBioTechnology, The Johns Hopkins University, Baltimore, Maryland 21218, USA
| | - R. Lin
- Department of Chemical and Biomolecular Engineering, The Johns Hopkins University, Baltimore, Maryland 21218, USA
| | - H. Cui
- Department of Chemical and Biomolecular Engineering, The Johns Hopkins University, Baltimore, Maryland 21218, USA
- Institute for NanoBioTechnology, The Johns Hopkins University, Baltimore, Maryland 21218, USA
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Lin R, Gallagher R, Spinaze M, Najoumian H, Dennis C, Clifton-Bligh R, Tofler G. Effect of a patient-directed discharge letter on patient understanding of their hospitalisation. Intern Med J 2014; 44:851-7. [DOI: 10.1111/imj.12482] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2014] [Accepted: 04/30/2014] [Indexed: 11/28/2022]
Affiliation(s)
- R. Lin
- Royal North Shore Hospital; University of Sydney; Sydney Australia
| | - R. Gallagher
- Royal North Shore Hospital; University of Sydney; Sydney Australia
| | - M. Spinaze
- Royal North Shore Hospital; University of Sydney; Sydney Australia
| | - H. Najoumian
- University of New England; Armidale New South Wales Australia
| | - C. Dennis
- Royal North Shore Hospital; University of Sydney; Sydney Australia
| | - R. Clifton-Bligh
- Royal North Shore Hospital; University of Sydney; Sydney Australia
| | - G. Tofler
- Royal North Shore Hospital; University of Sydney; Sydney Australia
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Schreiber S, Lin R, Haim L, Baratz-Goldstien R, Rubovitch V, Vaisman N, Pick CG. Enriched environment improves the cognitive effects from traumatic brain injury in mice. Behav Brain Res 2014; 271:59-64. [PMID: 24906196 DOI: 10.1016/j.bbr.2014.05.060] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2014] [Revised: 05/24/2014] [Accepted: 05/27/2014] [Indexed: 11/28/2022]
Abstract
To date, there is yet no established effective treatment (medication or cognitive intervention) for post-traumatic brain injury (TBI) patients with chronic sequelae. Enriched environment (EE) has been recognized of importance in brain regulation, behaviour and physiology. Rodents reared in, or pre-exposed to EE, recovered better from brain insults. Using the concussive head trauma model of minimal TBI in mice, we evaluated the effect of transition to EE following a weight-drop (30g or 50g) induced mTBI on behavioural and cognitive parameters in mice in the Novel Object Recognition task, the Y- and the Elevated Plus mazes. In all assays, both mTBI groups (30g, 50g) housed in normal conditions were equally and significantly impaired 6 weeks post injury in comparison with the no-mTBI (p<0.001 and p<0.03, respectively) and the mTBI+EE groups (p<0.001 for the 30g, and p<0.017 for the 50g). No differences were found between the control and the EE mice. Two separate finding emerge: (1) the significantly positive effects of the placement in EE following mTBI, on the rehabilitative process of the tested behaviours in the affected mice; (2) the lack of difference between the groups of mice affected by 30g or by 50g. Further studies are needed in order to characterize the exact pathways involved in the positive effects of the EE on mice recovery from mTBI. Possible clinical implications indicate the importance of adapting correlates of EE to humans, i.e., prolonged and intensive physical activity - possibly combined with juggling training and intensive cognitive stimulation.
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Affiliation(s)
- S Schreiber
- Department of Psychiatry, Tel Aviv Sourasky Medical Center, Israel; Tel-Aviv University, Sackler Faculty of Medicine, Tel-Aviv, Israel.
| | - R Lin
- Department of Anatomy and Anthropology, Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel
| | - L Haim
- Department of Anatomy and Anthropology, Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel
| | - R Baratz-Goldstien
- Department of Anatomy and Anthropology, Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel
| | - V Rubovitch
- Department of Anatomy and Anthropology, Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel
| | - N Vaisman
- The Unit of Clinical Nutrition, Tel-Aviv Sourasky Medical Center, Tel-Aviv, Israel
| | - C G Pick
- Department of Anatomy and Anthropology, Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel; Sagol School of Neuroscience, Tel Aviv University, Tel Aviv, Israel
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Zha J, Ming D, Jiang Y, Huang C, Jiang T, Chen C, Lin R, Su W, Gu S. Establishment of reference range for thyroid hormones in normal pregnant women in China’s coastal area. CLIN EXP OBSTET GYN 2014. [DOI: 10.12891/ceog15892014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
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Lin R, Xu X, Li Y, Sun J, Fan Z, Jiang Q, Huang F, Zhou H, Nie D, Guo Z, Mao Y, Xiao Y, Liu Q. Comparison of long-term and short-term administration of itraconazole for primary antifungal prophylaxis in recipients of allogeneic hematopoietic stem cell transplantation: a multicenter, randomized, open-label trial. Transpl Infect Dis 2014; 16:286-94. [PMID: 24593273 DOI: 10.1111/tid.12192] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2013] [Revised: 08/19/2013] [Accepted: 09/07/2013] [Indexed: 11/30/2022]
Abstract
BACKGROUND The optimal agents and duration of primary antifungal prophylaxis in recipients of allogeneic hematopoietic stem cell transplantation (allo-HSCT) remain a matter of discussion. OBJECTIVE Our objective was to compare the efficacy and safety of long-term and short-term administration of itraconazole (ITCZ) for primary antifungal prophylaxis in allo-HSCT recipients. METHODS This multicenter, randomized, open-label pilot study was performed in 4 transplant centers in China. Recipients of allo-HSCT without a history of invasive fungal disease (IFD) were randomly assigned to the long-term or the short-term arm. Randomization was carried out by a center computer system. Intravenous ITCZ was given to the patients in both study arms with a loading dose of 400 mg/day for 2 days followed by 200 mg/day until day +14 or when the white blood cell count was >1.0 × 10(9) /L, and then switched to oral ITCZ solution; prophylaxis was continued until day +30 post transplantation in the short-term arm or until day +90 in the long-term arm. The trough serum concentrations of ITCZ also were measured. The primary study endpoint was the incidence of IFD (proven, probable, and possible) within day +90 post transplantation. RESULTS A total of 128 recipients were enrolled in this study; 59 of them were randomized to the long-term arm and 62 were randomized to the short-term arm, forming the modified intent-to-treat (mITT) set. The incidence of IFD within day +90, the primary endpoint, was not significantly different between the 2 arms for the mITT set (6.78% in the long-term arm vs. 6.45% in the short-term arm, P = 0.94), or for the per-protocol set (6.90% in the long-term arm vs. 6.67% in the short-term arm, P = 0.96). From day +30 to day +90, the incidence of IFD was 0% and 6.45%, respectively, in the patients with long-term and short-term prophylaxis for the mITT set (P = 0.11). The mean trough serum concentrations of ITCZ was maintained at >500 ng/mL throughout administration. The incidences of withdrawal because of drug-related adverse events in patients with long-term and short-term prophylaxis were 6.78% and 0%, respectively (P = 0.05). CONCLUSIONS Long-term and short-term administration of ITCZ both seemed effective in preventing IFD in recipients of allo-HSCT. Further study with large sample size should be performed to evaluate this result. ITCZ shows the same pharmacokinetics in recipients of allo-HSCT as in non-recipients.
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Affiliation(s)
- R Lin
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, China
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Zha J, Ming D, Jiang Y, Huang C, Jiang T, Chen C, Lin R, Su W, Gu S. Establishment of reference range for thyroid hormones in normal pregnant women in China's coastal area. CLIN EXP OBSTET GYN 2014; 41:135-140. [PMID: 24779237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
PURPOSE The current study aims to establish reference ranges for thyroid hormones in normal pregnant women during their pregnancy period. MATERIALS AND METHODS A one-time cross-sectional survey was conducted on 490 normal pregnant women and 51 nonpregnant women (control). The serum thyroid stimulating hormone (TSH), free triiodothyronine (FT3), and free tetraiodothyronine (FT4) levels were measured. RESULTS The serum FT3 and FT4 levels in pregnant women decreased gradually from the first to the last three months of pregnancy (p < 0.01). The serum TSH level increased gradually during the whole pregnancy (p < 0.01), and was significantly lower than the control (p < 0.01) in the first three months. However, in the middle and last three months of pregnancy, TSH was higher than the control (p < 0.01). CONCLUSIONS The thyroid hormone levels in normal pregnant women are different from those in non-pregnant women; significant differences exist among the three stages of pregnancy.
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78
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Chen X, Lin R, Chang L, Xu S, Wei X, Zhang J, Wang C, Anwyl R, Wang Q. Enhancement of long-term depression by soluble amyloid β protein in rat hippocampus is mediated by metabotropic glutamate receptor and involves activation of p38MAPK, STEP and caspase-3. Neuroscience 2013; 253:435-43. [PMID: 24012839 DOI: 10.1016/j.neuroscience.2013.08.054] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2013] [Revised: 08/20/2013] [Accepted: 08/27/2013] [Indexed: 10/26/2022]
Abstract
It is reported that the amyloid-β protein (Aβ)-induced impairments in synaptic plasticity coincide with memory decline and dementia. Although Aβ-induced inhibition of hippocampal long-term potentiation has been intensively investigated, the underlying mechanism of Aβ-enhanced long-term depression (LTD) is not clear. Here, we report that acute exposure of rat hippocampal slices to soluble Aβ-enhanced LTD induced by weak low-frequency stimulation (wLFS; 1Hz for 3 min, 180 pulses) in granule cells of the dentate gyrus. Application of LY341495 (a non-selective Group I/II metrabotropic glumate receptor (mGluR) antagonist) completely blocked Aβ-enhanced LTD, whereas D-AP5 (a not selective N-methyl-d-aspartate receptor (NMDAR) antagonist) had no effect on Aβ-enhanced LTD compared with controls. In addition, Aβ-enhanced LTD was occluded by pre-application of 3,5-dihydroxyphenylglycine, a Group1 mGluR (mGluR1/5) agonist, suggesting Aβ-enhanced LTD depends on mGluR1/5 but not NMDAR. We also report here that p38 mitogen-activated protein kinase (p38MAPK) inhibitor SB203580 and postsynaptic protein tyrosine phosphatase inhibitors phenylarsine oxide and sodium orthovanadate prevented the facilitatory effect of Aβ on LTD. Application of striatal-enriched protein tyrosine phosphatase (STEP) activator MG132 facilitated induction of LTD by wLFS, but did not block following Aβ-enhanced LTD induced by another wLFS. On the other hand, Aβ-enhanced LTD blocked following MG132-LTD by wLFS, suggesting Aβ-enhanced hippocampal LTD involves STEP activation. Application of either non-selective caspase inhibitor Z-VAD-FMK or caspase-3 selective inhibitor Z-DEVD-FMK prevented Aβ-enhanced LTD. However, neither the tumor necrosis factor-α converting enzyme inhibitor TAPI-2 nor the mammalian target of rapamycin inhibitor rapamycin prevented the enhancement of Aβ on LTD. Therefore, we conclude that soluble Aβ enhances LTD in the hippocampal dentate gyrus region, and the facilitatory effect of Aβ on LTD involves mGluR1/5, p38MAPK, STEP and caspase-3 activation.
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Affiliation(s)
- X Chen
- Department of Physiology, Medical School, Research Center of Behavioral Science, Ningbo University, Ningbo 315211, China
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79
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Hao R, Li P, Wang Y, Qiu S, Wang L, Li Z, Xie J, Wu Z, Lin R, Liu N, Yang G, Yang C, Wang J, Li H, Yi S, Klena JD, Song H. Diversity of Pathogens Responsible for Acute Diarrheal Disease in China. Clin Infect Dis 2013; 57:1788-90. [DOI: 10.1093/cid/cit572] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Alenton L, Hsann MY, Tambyah P, Lin R, Ng KS, Rethanam S, Poh L, Soong SL, Pada SK. O048: OXA-181- carbapenemase producing Klebsiella pneumoniae: an emerging threat? The first reported nosocomial outbreak in Singapore. Antimicrob Resist Infect Control 2013. [PMCID: PMC3688136 DOI: 10.1186/2047-2994-2-s1-o48] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023] Open
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Abstract
Abstract
A numerical model for non-isothermal mold filling and curing simulation in thin cavities with preplaced fiber mats was developed based on the control volume method. Both lumped temperature system (i.e. local thermal equilibrium between the resin and the fiber) and unlumped temperature system (i.e. thermal non-equilibrium locally) were considered. A Lagrangian coordinate system was used in the flow front region to improve the energy transfer calculation. Several molding simulation results were presented to show the effect of fiber mat presence (in the mold cavity) on the inlet pressure and temperaturedistribution.
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Affiliation(s)
- R. Lin
- Engineering Research Center for Net Shape Manufacturing, The Ohio State University, Columbus, U.S.A
| | - L. J. Lee
- Engineering Research Center for Net Shape Manufacturing, The Ohio State University, Columbus, U.S.A
| | - M. Liou
- Engineering Research Center for Net Shape Manufacturing, The Ohio State University, Columbus, U.S.A
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82
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Zhou H, Liao L, Zhou L, Li H, Cao R, Dai M, Wang Q, Xu N, Wei Y, Liu X, Deng Y, Xu B, Feng R, Sun J, Lin R, Xu X, Fan D, Meng F. P-031 Isochromosome 17q10 in MDS/MPN are frequently associated with TET2 mutations and transformation termination of acute megakaryoblastic leukemia. Leuk Res 2013. [DOI: 10.1016/s0145-2126(13)70080-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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83
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Panagiotopoulou IG, Parashar D, Lin R, Antonowicz S, Wells AD, Bajwa FM, Krijgsman B. The diagnostic value of white cell count, C-reactive protein and bilirubin in acute appendicitis and its complications. Ann R Coll Surg Engl 2013; 95:215-21. [PMID: 23827295 PMCID: PMC4165248 DOI: 10.1308/003588413x13511609957371] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/11/2012] [Indexed: 12/29/2022] Open
Abstract
INTRODUCTION Inflammatory markers such as white cell count (WCC) and C-reactive protein (CRP) and, more recently, bilirubin have been used as adjuncts in the diagnosis of appendicitis. The aim of this study was to determine the diagnostic accuracy of the above markers in acute and perforated appendicitis as well as their value in excluding the condition. METHODS A retrospective analysis of 1,169 appendicectomies was performed. Patients were grouped according to histological examination of appendicectomy specimens (normal appendix = NA, acute appendicitis = AA, perforated appendicitis = PA) and preoperative laboratory test results were correlated. Receiver operating characteristic (ROC) curve area analysis (area under the curve [AUC]) was performed to examine diagnostic accuracy. RESULTS ROC analysis of all laboratory variables showed that no independent variable was diagnostic for AA. Good diagnostic accuracy was seen for AA when all variables were combined (WCC/CRP/bilirubin combined AUC: 0.8173). In PA, the median CRP level was significantly higher than that of AA (158mg/l vs 30mg, p<0.0001). CRP also showed the highest sensitivity (100%) and negative predictive value (100%) for PA. CRP had the highest diagnostic accuracy in PA (AUC: 0.9322) and this was increased when it was combined with WCC (AUC: 0.9388). Bilirubin added no diagnostic value in PA. Normal levels of WCC, CRP and bilirubin could not rule out appendicitis. CONCLUSIONS CRP provides the highest diagnostic accuracy for PA. Bilirubin did not provide any discriminatory value for AA and its complications. Normal inflammatory markers cannot exclude appendicitis, which remains a clinical diagnosis.
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Affiliation(s)
- I G Panagiotopoulou
- Peterborough City Hospital, Edith Cavell Campus, Bretton Gate, Peterborough PE3 9GZ, UK.
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84
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Michalet X, Colyer RA, Scalia G, Ingargiola A, Lin R, Millaud JE, Weiss S, Siegmund OHW, Tremsin AS, Vallerga JV, Cheng A, Levi M, Aharoni D, Arisaka K, Villa F, Guerrieri F, Panzeri F, Rech I, Gulinatti A, Zappa F, Ghioni M, Cova S. Development of new photon-counting detectors for single-molecule fluorescence microscopy. Philos Trans R Soc Lond B Biol Sci 2013; 368:20120035. [PMID: 23267185 PMCID: PMC3538434 DOI: 10.1098/rstb.2012.0035] [Citation(s) in RCA: 92] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Two optical configurations are commonly used in single-molecule fluorescence microscopy: point-like excitation and detection to study freely diffusing molecules, and wide field illumination and detection to study surface immobilized or slowly diffusing molecules. Both approaches have common features, but also differ in significant aspects. In particular, they use different detectors, which share some requirements but also have major technical differences. Currently, two types of detectors best fulfil the needs of each approach: single-photon-counting avalanche diodes (SPADs) for point-like detection, and electron-multiplying charge-coupled devices (EMCCDs) for wide field detection. However, there is room for improvements in both cases. The first configuration suffers from low throughput owing to the analysis of data from a single location. The second, on the other hand, is limited to relatively low frame rates and loses the benefit of single-photon-counting approaches. During the past few years, new developments in point-like and wide field detectors have started addressing some of these issues. Here, we describe our recent progresses towards increasing the throughput of single-molecule fluorescence spectroscopy in solution using parallel arrays of SPADs. We also discuss our development of large area photon-counting cameras achieving subnanosecond resolution for fluorescence lifetime imaging applications at the single-molecule level.
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Affiliation(s)
- X Michalet
- Department of Chemistry and Biochemistry, UCLA, Los Angeles, CA 90095-1547, USA.
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85
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Bernardo B, Gao X, Tham Y, Lin R, Kiriazis H, Du X, McMullen J. The Therapeutic Potential of microRNA-652 for the Treatment of Heart Failure. Heart Lung Circ 2013. [DOI: 10.1016/j.hlc.2013.05.144] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Abstract
Endovascular therapy in the acute management of ischemic stroke has become more common with technologic advances, such as easier navigation into the intracranial circulation and improved treatment efficacy with the advent of revascularization devices. This select review outlines milestones in the application of endovascular therapy in acute ischemic stroke (AIS) and offers some insight into important factors influencing the future directions of endovascular AIS treatment. In particular, we discuss the evolution of endovascular devices for AIS and how ingenuity continues to offer novel treatments. With these advances, the future of endovascular AIS treatment is promising.
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Affiliation(s)
- M A Taqi
- The Institute of Clinical Orthopedics and Neurosciences, Desert Regional Medical Center, Palm Springs, CA, USA.
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87
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Chie W, Fu C, Lee W, Li C, Huang C, Chang K, Lin R. Ages at different reproductive events, numbers of menstrual cycles in between and breast cancer risk. Oncol Rep 2012; 4:1039-43. [PMID: 21590191 DOI: 10.3892/or.4.5.1039] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
One hundred and seventy-five pathologically confirmed new cases of female breast cancer in National Taiwan University Hospital were selected as the case group. Four hundred and fifty-seven inpatient controls were individually matched for each case by age and date of admission. Information of reproductive factors and potential confounders were collected from questionnaire interview and medical records. Menstrual cycles before and after first fuIl-term pregnancy were estimated from the questionnaire. Conditional logistic regression was used to estimate the effects of reproductive risk factors and numbers of menstrual cycles before and after first full-term pregnancy. After adjusting for educational level, body mass index, family history of breast cancer and oral contraceptive use, age at menarche and menopause only showed borderline significance. Age at first full-term birth predicted breast cancer risk better. Parity was the most important protective factor. Number of menstrual cycles before first full-term pregnancy was also positively associated with breast cancer risk with linear trends.
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Affiliation(s)
- W Chie
- NATL TAIWAN UNIV,COLL PUBL HLTH,INST EPIDEMIOL,TAIPEI 10018,TAIWAN. NATL TAIWAN UNIV,COLL MED,DEPT SURG,TAIPEI 10018,TAIWAN
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88
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Wu RH, Lin R, Li H, Xiao ZW, Rao HB, Luo WH, Guo G, Huang K, Zhang XG, Lang ZJ. Accuracy of noninvasive quantification of brain NAA concentrations using PRESS sequence: verification in a swine model with external standard. Conf Proc IEEE Eng Med Biol Soc 2012; 2005:1396-9. [PMID: 17282459 DOI: 10.1109/iembs.2005.1616690] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The metabolite ratios had been employed in the field of MR spectroscopy (MRS) for a long period. The main drawback of metabolite ratio is that ratio results are not comparable with absolute metabolite concentration in vivo. The purpose of this study was to examine the accuracy of noninvasive quantification of brain N-acetylaspartate (NAA) concentrations using previously reported MR external standard method. Eight swine were scanned on a GE 1.5 T scanner with a standard head coil. The external standard method was utilized with a sphere filled with NAA, GABA, glutamine, glutamate, creatine, choline chloride, and myo-inositol. The position resolved spectroscopy (PRESS) sequence was used with TE=135 msec, TR=1500 msec, and 128 scan averages. The analysis of MRS was done with SAGE/IDL program. In vivo NAA concentration was obtained using the equation S=N * e(-TE/T<sub>2</sub>) * [1-e(-TR/T<sub>1</sub>). In vitro NAA concentration was measured by high performance liquid chromatography (HPLC). In the MRS group, the mean concentration of NAA was 10.03 plusmn 0.74 mmol/kg. In the HPLC group, the mean concentration of NAA was 9.22 plusmn 0.55 mmol/kg. There was no significant difference between the two groups (p = 0.46). However, slightly higher value was observed in the MRS group (7/8 swine), compared with HPLC group. The range of differences was between 0.02~2.05 mmol/kg. MRS external reference method could be more accurate than internal reference method. <sup>1</sup>H MRS does not distinguish between N-acetyl resonance frequencies and other N-acetylated amino acids.
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Affiliation(s)
- R H Wu
- Med. Imaging & Central Lab., Shantou Univ. Med. Coll
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89
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O'Connell O, Repik A, Reeves JD, Gonzalez-Perez MP, Quitadamo B, Duenas-Decamp M, Peters P, Lin R, Anton ED, Zolla-Pazner S, Corti D, Wallace A, Wang S, Kong X, Lu S, Clapham PR. The efficiency of bridging sheet recruitment determines HIV-1 R5 envelope sensitivity to soluble CD4 and macrophage tropism. Retrovirology 2012. [PMCID: PMC3441583 DOI: 10.1186/1742-4690-9-s2-p141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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90
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Wang J, Lin R, Wen H, Vuitton D, Gottstein B. P173 Course of the Th-1, Th-2 and Th-17 cytokines and of associated chemokines involved in the periparasitic recruitment of cells in echinococcus multilocularis infection. Cytokine 2012. [DOI: 10.1016/j.cyto.2012.06.275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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91
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Rybicki J, Lin R, Wang F, Wohlgenannt M, He C, Sanders T, Suzuki Y. Tuning the performance of organic spintronic devices using x-ray generated traps. Phys Rev Lett 2012; 109:076603. [PMID: 23006391 DOI: 10.1103/physrevlett.109.076603] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2012] [Indexed: 05/20/2023]
Abstract
X rays produced during electron-beam deposition of metallic electrodes drastically change the performance of organic spintronic devices. The x rays generate traps with an activation energy of ≈0.5 eV in a commonly used organic. These traps lead to a dramatic decrease in spin-diffusion length in organic spin valves. In organic magnetoresistive (OMAR) devices, however, the traps strongly enhance magnetoresistance. OMAR is an intrinsic magnetotransport phenomenon and does not rely on spin injection. We discuss our observations in the framework of currently existing theories.
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Affiliation(s)
- J Rybicki
- Department of Physics and Astronomy, Optical Science and Technology Center, University of Iowa, Iowa City, 52242, USA
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92
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Jauneikaite E, Churton N, Lin R, Jefferies J, Hibberd M, Clarke S. Prevalence of serotypes and molecular types among Streptococcus pneumoniae isolates causing invasive disease in Singapore between June 2009 and August 2010. Int J Infect Dis 2012. [DOI: 10.1016/j.ijid.2012.05.825] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
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93
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La MV, Siti Zulaina M, Chua A, Jureen R, Tee N, Lin R. Pneumococcal serotyping for surveillance of invasive pneumococcal diseases in Singapore, 2011. Int J Infect Dis 2012. [DOI: 10.1016/j.ijid.2012.05.303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
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94
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Wang W, Lin R, Zhang J, Mao Y, Bu X, Ji Q, Zhai X, Lin Q, Yang L, Zhang K. Involvement of fatty acid metabolism in the hepatotoxicity induced by divalproex sodium. Hum Exp Toxicol 2012; 31:1092-101. [DOI: 10.1177/0960327112444477] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Divalproex sodium is an antiepileptic drug. Hepatotoxicity is one of the most common side effects induced by divalproex sodium. Impaired fatty acid metabolism is considered to play an important role in the drug-induced hepatotoxicity. The sterol regulatory element-binding protein 1c (SREBP-1c) and peroxisome proliferator-activated receptor α (PPARα) are two key transcription factors involved, respectively, in fatty acid synthesis and degradation in liver. In the present study, we investigated the hepatotoxicity induced by divalproex sodium and its potential mechanism. The results indicated that divalproex sodium significantly decreased the cell viability and increased lactate dehydrogenase leakage in hepatocytes. The activities of alanine aminotransferase and aspartate transaminase were increased in hepatocytes treated with divalproex sodium. Furthermore, divalproex sodium activated SREBP-1c and increased the mRNA expressions of acetyl-CoA carboxylase 1, fatty acid synthase and stearoyl-CoA desaturase 1. Divalproex sodium also inhibited PPARα and decreased the messenger RNA expressions of 3-hydroxy-3-methylglutaryl-CoA synthase 2 and carnitine palmitoyltransferase 1A. These results suggest that the hepatotoxicity induced by divalproex sodium may be related with fatty acid synthesis and degradation mediated by SREBP-1c and PPARα in hepatocytes.
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Affiliation(s)
- W Wang
- Department of Pharmacology, Key Laboratory of Environment and Genes Related to Diseases, School of Medicine, Xi’an Jiaotong University, Xi’an, Shaanxi, PR China
| | - R Lin
- Department of Pharmacology, Key Laboratory of Environment and Genes Related to Diseases, School of Medicine, Xi’an Jiaotong University, Xi’an, Shaanxi, PR China
| | - J Zhang
- Department of Pharmacology, Key Laboratory of Environment and Genes Related to Diseases, School of Medicine, Xi’an Jiaotong University, Xi’an, Shaanxi, PR China
| | - Y Mao
- Shaanxi’s Tiansen Drug Research and Development Limited Company, Xi’an, Shaanxi, PR China
| | - X Bu
- Shaanxi’s Tiansen Drug Research and Development Limited Company, Xi’an, Shaanxi, PR China
| | - Q Ji
- Department of Pharmacology, Key Laboratory of Environment and Genes Related to Diseases, School of Medicine, Xi’an Jiaotong University, Xi’an, Shaanxi, PR China
| | - X Zhai
- Shaanxi’s Tiansen Drug Research and Development Limited Company, Xi’an, Shaanxi, PR China
| | - Q Lin
- Department of Pharmacology, Key Laboratory of Environment and Genes Related to Diseases, School of Medicine, Xi’an Jiaotong University, Xi’an, Shaanxi, PR China
| | - L Yang
- Department of Pharmacology, Key Laboratory of Environment and Genes Related to Diseases, School of Medicine, Xi’an Jiaotong University, Xi’an, Shaanxi, PR China
| | - K Zhang
- Department of Pharmacology, Key Laboratory of Environment and Genes Related to Diseases, School of Medicine, Xi’an Jiaotong University, Xi’an, Shaanxi, PR China
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Zagarins SE, Ronnenberg AG, Gehlbach SH, Lin R, Bertone-Johnson ER. Are existing measures of overall diet quality associated with peak bone mass in young premenopausal women? J Hum Nutr Diet 2012; 25:172-9. [PMID: 22320839 DOI: 10.1111/j.1365-277x.2012.01225.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
BACKGROUND Low peak bone mass in young adulthood is associated with an increased risk of osteoporosis and fracture after menopause, and an understanding of the modifiable factors that contribute to low peak bone mass is important for fracture prevention. Diet is an important modifiable factor linked to bone health and, although studies have examined the role of individual dietary components in bone health, bone growth and maintenance are complex processes, and such studies may not adequately represent the role of diet in these processes. METHODS To address this issue, a cross-sectional analysis of 226 healthy, premenopausal women aged 18-30 years was conducted to determine whether existing indices of overall diet quality are associated with bone density in premenopausal women nearing peak bone mass. Bone density was measured using dual-energy X-ray absorptiometry and diet quality was measured using two overall diet scores based on current dietary guidelines: the Recommended Food Score and the Alternate Healthy Eating Index (AHEI). RESULTS In the multiple linear regression, bone density did not increase across quartiles of either diet quality score and was not associated with continuous diet quality variables. Furthermore, none of the individual AHEI components (e.g. fruit intake, vegetable intake) were associated with bone density. CONCLUSIONS These findings suggest that existing diet quality scores are not appropriate for studies of peak bone mass, most likely because they do not give sufficient weight to foods and nutrients important to bone health. We recommend the development of a diet pattern index that better predicts bone mass measures.
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Affiliation(s)
- S E Zagarins
- Department of Public Health, University of Massachusetts at Amherst, Amherst, MA, USA.
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Ingargiola A, Colyer RA, Kim D, Panzeri F, Lin R, Gulinatti A, Rech I, Ghioni M, Weiss S, Michalet X. Parallel multispot smFRET analysis using an 8-pixel SPAD array. Proc SPIE Int Soc Opt Eng 2012; 8228. [PMID: 24382989 DOI: 10.1117/12.909470] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Single-molecule Förster resonance energy transfer (smFRET) is a powerful tool for extracting distance information between two fluorophores (a donor and acceptor dye) on a nanometer scale. This method is commonly used to monitor binding interactions or intra- and intermolecular conformations in biomolecules freely diffusing through a focal volume or immobilized on a surface. The diffusing geometry has the advantage to not interfere with the molecules and to give access to fast time scales. However, separating photon bursts from individual molecules requires low sample concentrations. This results in long acquisition time (several minutes to an hour) to obtain sufficient statistics. It also prevents studying dynamic phenomena happening on time scales larger than the burst duration and smaller than the acquisition time. Parallelization of acquisition overcomes this limit by increasing the acquisition rate using the same low concentrations required for individual molecule burst identification. In this work we present a new two-color smFRET approach using multispot excitation and detection. The donor excitation pattern is composed of 4 spots arranged in a linear pattern. The fluorescent emission of donor and acceptor dyes is then collected and refocused on two separate areas of a custom 8-pixel SPAD array. We report smFRET measurements performed on various DNA samples synthesized with various distances between the donor and acceptor fluorophores. We demonstrate that our approach provides identical FRET efficiency values to a conventional single-spot acquisition approach, but with a reduced acquisition time. Our work thus opens the way to high-throughput smFRET analysis on freely diffusing molecules.
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Affiliation(s)
- A Ingargiola
- Dipartimento Elettronica ed Informazione, Politecnico di Milano, Milan, Italy ; Department of Chemistry & Biochemistry, UCLA, Los Angeles, CA USA
| | - R A Colyer
- Department of Chemistry & Biochemistry, UCLA, Los Angeles, CA USA
| | - D Kim
- Nesher Technologies Inc, Los Angeles, CA USA
| | - F Panzeri
- Dipartimento Elettronica ed Informazione, Politecnico di Milano, Milan, Italy
| | - R Lin
- Department of Chemistry & Biochemistry, UCLA, Los Angeles, CA USA
| | - A Gulinatti
- Dipartimento Elettronica ed Informazione, Politecnico di Milano, Milan, Italy
| | - I Rech
- Dipartimento Elettronica ed Informazione, Politecnico di Milano, Milan, Italy
| | - M Ghioni
- Dipartimento Elettronica ed Informazione, Politecnico di Milano, Milan, Italy
| | - S Weiss
- Department of Chemistry & Biochemistry, UCLA, Los Angeles, CA USA
| | - X Michalet
- Department of Chemistry & Biochemistry, UCLA, Los Angeles, CA USA
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97
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Lin R, Tofler G, Spinaze M, Dennis C, Clifton-Bligh R, Nojoumian H, Gallagher R. Patient-Directed Discharge Letter (PADDLE)—A Simple and Brief Intervention to Improve Patient Knowledge and Understanding at Time of Hospital Discharge. Heart Lung Circ 2012. [DOI: 10.1016/j.hlc.2012.05.771] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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98
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Fisher D, Lin R, Hsu LY, Li OK, Ng TM, Tambyah P. The staged roll-out of an MRSA intervention bundle in Signapore featuring universal active surveillance. BMC Proc 2011. [PMCID: PMC3239501 DOI: 10.1186/1753-6561-5-s6-o84] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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99
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Balm M, Teo C, Jureen R, Lin R, Fisher D. Massive hospital-wide bacillus outbreak related to hospital linen and construction. BMC Proc 2011. [PMCID: PMC3239493 DOI: 10.1186/1753-6561-5-s6-o77] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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100
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Klarskov MB, Dam HF, Petersen DH, Hansen TM, Löwenborg A, Booth TJ, Schmidt MS, Lin R, Nielsen PF, Bøggild P. Fast and direct measurements of the electrical properties of graphene using micro four-point probes. Nanotechnology 2011; 22:445702. [PMID: 21975563 DOI: 10.1088/0957-4484/22/44/445702] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
We present measurements of the electronic properties of graphene using a repositionable micro four-point probe system, which we show here to have unique advantages over measurements made on lithographically defined devices; namely speed, simplicity and lack of a need to pattern graphene. Measurements are performed in ambient, vacuum and controlled environmental conditions using an environmental scanning electron microscope (SEM). The results are comparable to previous results for microcleaved graphene on silicon dioxide (SiO(2)). We observe a pronounced hysteresis of the charge neutrality point, dependent on the sweep rate of the gate voltage; and environmental measurements provide insight into the sensor application prospects of graphene. The method offers a fast, local and non-destructive technique for electronic measurements on graphene, which can be positioned freely on a graphene flake.
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Affiliation(s)
- M B Klarskov
- Department of Micro- and Nanotechnology, Technical University of Denmark, DTU Nanotech, Kongens Lyngby, Denmark
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